CN1972164A - A wireless channel quality instruction selecting method and apparatus - Google Patents

Abstract

This invention relates to one wireless signal channel quality selection, which comprises first determine variable signal proportion estimation module, second module and wireless signal quality selection module. This invention also discloses one selection method, which comprises the following steps: a, test module tests and estimates received signals proportion, receive path number; b, reading received signal proportion from step one and receive path number; c, according to fix map relationship selecting wireless signal channel indication value; d, reporting the indication results to network end.

Description

The method and apparatus that a kind of quality of wireless channel indication is selected

Technical field

The present invention relates in the radio communications system quality of wireless channel be assessed, relate in particular to the method and apparatus that a kind of quality of wireless channel indication is selected.

Background technology

At present along with the popularizing and the enhancing of radio communication capability of radio circuit, data communication service begins to enter radio communication field.A kind of technology that is called high-speed downlink packet access (HSDPA, High Speed DownlinkPackage Access) begins to serve the data communication service in the wireless network.

From the angle of system design, speech and data communication has than big-difference.For example, voice communication is regarded as the single information stream transmission on a channel in wireless network, transmits information but data communication can have a plurality of data links to be mapped on the same physical channel in discontinuous mode.

In order to make system reach maximum data throughout, high-speed data communication adopts the adaptive modulation and coding technology at down link (promptly sending to user side from network terminal), and the transformat (chnnel coding, modulation system etc.) that each data block is used is selected separately.Transformat is to be determined according to channel quality indication (CQI, Channel QualityIndication) by the networking end, and CQI selects and report network terminal by the user according to the channel quality of its measurement.Stipulate according to third generation wireless communication protocol, at additive white Gaussian noise (AWGN, Additional White Gauss Noise) wireless channel environment, when the CQI that network terminal is reported according to the user selects transformat transmission data, Block Error Rate should be near 10%, and requires CQI to report accuracy rate to be higher than 90%.Keep Block Error Rate 10% can make system resource obtain maximum use, some users' HSDPA data throughout summation reaches maximum in the promptly whole sub-district.So under this state, the CQI that reports as certain user is than ideal value hour, and promptly user's estimated channel quality is than actual conditions difference, and network terminal will send this user data with lower data speed, and other user's data speed are constant, and promptly this user's data speed reduces.When the CQI that reports as certain user is bigger than ideal value, be that user's estimated channel quality is better than actual conditions, network will improve this user's data speed, this user data Block Error Rate is increased, and when the CQI value departs from greatly, this user will seize more resource, thereby influence other user's data transmissions, and promptly the data throughout of sub-district integral body reduces.

The Block Error Rate that receives data not only depends on channel quality, and depends on receiver performance, but does not relate to the improvement of receiver performance in the present invention, and only relates to the apparatus and method of receiver to channel quality estimation and CQI selection.In algorithm to channel quality estimation, signal interference ratio (the SIR of signal, Signal Interference Ratio) be most important one-component, the simple way that CQI selects is exactly as shown in Table 1, and the SIR and the CQI of this channel received signal set up man-to-man mapping relations.

Signal interference ratio (SIR)	Channel quality indication (CQI)
		SIR 0	CQI 0
SIR 1	CQI 1
		SIR 2	CQI 2
SIR 3	CQI 3
		SIR 4	CQI 4
SIR n	CQI n

Table one

But because the complexity of wireless channel for example is subjected to multipath transmisstion, factor affecting such as the Doppler frequency skew that mobile station speed causes, even received signal SIR is identical and send data format also under the same case, the Block Error Rate of receiver still has difference.So in order to improve the accuracy rate that CQI reports, at U.S. Pat 2005/0003782 A1 " Methods and apparatus for channel quantity indicator determination ", the method and apparatus employing of promptly measuring the channel quality indication is the first decision component with SIR, with HARQ (hybrid ARQ, i.e. hybrid automatic repeat request technology) information and Turbo (a kind of error-correcting code technique) decoded information is that the second decision component carries out the selection of CQI.Above patent is owing to the second decision component that adopts just can obtain after the data block decoding, so the time-delay that CQI reports is longer.

Summary of the invention

The technical problem to be solved in the present invention provides the method and apparatus that a kind of quality of wireless channel indication is selected, to solve the inaccurate problem of CQI estimation that causes because of channel circumstance is different, in selecting, CQI considers the influence of transmission environment, thereby improve the accuracy rate that user side CQI reports, further improve the flow of user data.Adopt the method and apparatus among the present invention can reduce the time-delay that CQI reports effectively simultaneously.

For solving the problems of the technologies described above, the present invention proposes a kind of choice device of quality of wireless channel indication, it selects module to form by the first decision component signal interference ratio estimation module, the second decision component estimation module and quality of wireless channel indication, and wherein the first decision component signal interference ratio estimation module is used for measurements and calculations received signal signal interference ratio; The second decision component estimation module is used to estimate the second decision component; The quality of wireless channel indication selects module to determine the quality of wireless channel indicated value according to the received signal signal interference ratio and the second decision component.The second decision component estimation module can include only the number of paths estimation module, can also be the combination in any that comprises number of paths estimation module and mobile station speed estimation module, multipath power division statistical module.

The invention allows for a kind of quality of wireless channel indication system of selection, carry out following steps: step 1, variablees such as the signal interference ratio of periodic measurement of measurement module and estimating received signal, RX path quantity in aforementioned contrive equipment cocycle; Step 2, when requiring to report the quality of wireless channel indicated value, variablees such as the signal interference ratio of the received signal of read step one gained, RX path quantity from measurement module; Step 3, be foundation, by fixing mapping relations selection quality of wireless channel indicated value with the gained variable; Step 4 indicates the result to report the quality of wireless channel of step 3 gained to network terminal.

Owing to adopted apparatus and method of the present invention, according to the estimation of number of paths and mobile station speed and multipath energy reliably, the user reports to the CQI value of network more accurate, thereby network can reach maximum data traffic.

Description of drawings

Fig. 1 is a kind of structure drawing of device of the present invention;

Fig. 2 is the flowchart of a specific embodiment of the present invention, can be applicable on Fig. 1 device;

The another kind of structure drawing of device of Fig. 3 the present invention;

Fig. 4 is the flowchart of another specific embodiment of the present invention, can be applicable on Fig. 3 device.

Embodiment

The present invention is further detailed explanation below in conjunction with drawings and the specific embodiments.

Specific embodiment one:

As shown in Figure 1, be the structure drawing of device of the specific embodiment of the invention one, this specific embodiment device is by SIR estimation module (101), number of paths estimation module (102), mobile station speed estimation module (103), multipath power division statistical module (104) and CQI select module (105) to form.Wherein SIR estimation module (101) is used to calculate the first decision component, and number of paths estimation module (102), mobile station speed estimation module (103) and multipath power division statistical module (104) are used to calculate second decision component (the path num, Velocity, D).The mapping mode of the form as shown in Table 2 that the module (105) of selecting CQI adopts is output as according to selecting the CQI value with other 4 modules.SIR represents the signal interference ratio of received signal in the form, and number of paths is the trusted path quantity that receiver measures, and value is m={1,2,3,4,5,6} (6 trusted path is an empirical value, and looking actual needs can adjust), mobile station speed is the receiver estimated value, estimating speed V={V1, V2, V3 ... Vn}, Vi can represent for example 3km/h of a certain concrete velocity amplitude, also can represent the speed speed, for example { at a slow speed, middling speed, fast }, as for how distinguishing the speed speed, need to decide on truth.The attribute of D value representation multipath power division recommend to use the most powerful path and the power ratio in weak footpath at this.

The execution flow process of this specific embodiment is as shown in Figure 2:

A:(201) with the received signal be process object, periodically measure and estimate variablees such as SIR, RX path quantity, mobile station speed and multipath power division attribute;

B:(202) when requiring to report this user CQI value, from measurement module, obtain above 4 variablees, i.e. SIR, m, V, D;

C:(203) so that (V D) is foundation for SIR, m, obtains the CQI value by mapping relations shown in following table two;

D:(204) the CQI selection result is reported to network terminal.

Therefore, the technical characterictic of the specific embodiment of the invention one is that with SIR be the first decision component, with the number of paths (path num) of wireless channel, the power division (D) of mobile station speed (Velocity) and multipath is that the second decision component carries out mensuration and the report of CQI.The technical scheme that it adopted is: by sir measurement, and route searching and management, methods such as mobile station speed estimation obtain (SIR, path num, Velocity, D) aliquot, and select and report and give network with this information and executing CQI.The selection of CQI can be searched the value that obtains CQI with reference to shown in the following table two, also can (Velocity D) calculates for SIR, path num, and this function is the another kind of form of expression of form with function C QI=f.

Signal interference ratio (SIR)	Number of paths	Mobile station speed	The footpath maximum power ratio	Channel quality indication (CQI)
					SIR 0	1	V 1	D 1	CQI 1
D 2	CQI 2
		.	.
D H	CQI H
		V 2	D 1	CQI H+1
D 2	CQI H+2
			.	.
D H	CQI 2H
			. V N	.			.
D 1	CQI (N-1)H+1
		D 2		CQI (N-1)H+2
.	.
		D H		CQI NH
2	V 1						D 1	CQI NH+1
		D 2	CQI NH+2
				.		.
		D H	CQI (N+1)H
				.		.	.
	V N	D 1	CQI (2N-1)H+1
				D 2		CQI (2N-1)H+2
		.	.
				D H		CQI 2NH
		.	.				.	.
.	.			.		.
		M	V 1				D 1	CQI (M-1)NH+1
D 2	CQI (M-1)NH+2
				.		.
D H	CQI (M-1)NH+H
				.		.	.
V N	D 1		CQI (M-1)NH+(N-1)H+1
				D 2		CQI (M-1)NH+(N-1)H+2
	.		.

			D H	CQI MNH
					SIR 1	1	V 1	D 1	CQI MNH+1
D 2	CQI MNH+2
		.	.
D H	CQI MNH+H
		. V N	.	.
D 1	CQI MNH+(N-1)H+1
			D 2	CQI MNH+(N-1)H+2
.	.
			D H	CQI MNH+NH
2	V 1						D 1	CQI MNH+NH+1
		D 2	CQI MNH+NH+2
				.		.
		D H	CQI MNH+(N+1)H
				.		.	.
	V N	D 1	CQI MNH+(2N-1)H+1
				D 2		CQI MNH+(2N-1)H+2
		.	.
				D H		CQI MNH+2NH
		.	.				.	.
.	.			.		.
		M	V 1				D 1	CQI MNH+(M-1)NH+1
D 2	CQI MNH+(M-1)NH+2
				.		.
D H	CQI MNH+(M-1)NH+H
				.		.	.
V N	D 1		CQI MNH+(M-1)NH+(N-1)H+1
				D 2		CQI MNH+(M-1)NH+(N-1)H+2
	.		.
				D H		CQI 2MNH
	.		.				.	.	.
SIR i		m		V n	D h	CQI iMNH+(m-1)NH+(n-1)H+h
	.		.				.	.	.

Table two

Shown in the table two in the form, and in identical transmission environment (SIR, path num, Velocity, D), different receiver performances can be influential to CQI, and for example its CQI value of the receiver of better performances will be bigger, and its CQI value of the receiver of poor-performing is less.Thereby the generation of form will be adopted and set up Mathematical Modeling and method of emulation obtains.In simulation model, suitably regulate the configuration of transmitted power and wireless channel, so that transmission environment is identical with preset value in the form, (SIR for example ₀, m=2, V ₁, D ₁), on the basis of this setting, transmitting terminal is respectively with CQI=1, and 2,3 ..., wait pairing transformat to send data, receiving terminal record and statistics of error rate are therefrom selected near 10% CQI value as CQI _NH+1, so the CQI value can be overlapping in the form, promptly CQI may occur _i=CQI _jI ≠ j wherein.

Test below just produces a kind of in the method for form, if will obtain more reliable result in actual environment.

After obtaining above form, this form is kept at receiver side with the form of constant, searches the CQI value of current report in order to each CQI report cycle.Perhaps the expressed content of above form is preserved in the mode of Function Mapping, this functional form be CQI=f (SIR, path num, Velocity, D).

Specific embodiment two:

The structure drawing of device of present embodiment is made up of the estimation module (110) and the CQI selection module (105) of the first decision component SIR estimation module (101), the second decision component as shown in Figure 3.Wherein the first decision component SIR estimation module (101) is used to calculate the signal interference ratio of received signal, and the second decision component estimation module (110) is used for estimated path quantity and mobile station speed, and he can be the combination of module 102 and 103.CQI selects the mapping relations of module (105) use shown in table three form, determines that according to the above first decision component SIR and second (m V) selects appropriate C QI to component.

The execution flow process of present embodiment is as shown in Figure 4:

A:(301) with the received signal be process object, periodically measure and estimate variablees such as SIR, RX path quantity and mobile station speed;

B:(302) when requiring to report this user CQI value, and the first decision component SIR and the second decision component more than from measurement module, obtaining (m, V);

C:(303) so that (SIR, m V) are foundation, and the mapping relations (as following table three) by itself and CQI obtain the CQI value;

D:(304) the CQI selection result is reported to network terminal.

Signal interference ratio (SIR)	Number of paths	Mobile station speed	Channel quality indication (CQI)
				SIR 0	1	V 1	CQI 1
V 2	CQI 2
		.	.
V N	CQI N
		2	V 1			CQI N+1
V 2	CQI N+2
			.		.
V N	CQI 2N
			.		.	.
.	.	.
			M		V 1	CQI (M-1)N+1
V 2	CQI (M-1)N+2
		.			.
V N	CQI MN
		SIR 1			1	V 1	CQI MN+1
V 2	CQI MN+2
			.	.
V N	CQI (M+1)N
			.	.		.
.	.				.
			M	V 1		CQI (2M-1)N+1
V 2	CQI (2M-1)N+2
				.	.
V N	CQI 2MN
				SIR 2	1	V 1	CQI 2MN+1
V 2	CQI 2MN+2
		.	.
V N	CQI (2M+1)N
		.	.			.
.					.
		M	V 1			CQI (3M-1)N+1
V 2	CQI (3M-1)N+2
			.		.
V N	CQI 3MN

.	.	.	.
				SIR i	m	V n	CQI iMN+(m-1)N-n
.	.	.	.

Table three

Specific embodiment three:

The structure drawing of device of present embodiment is made up of the estimation module (110) and the CQI selection module (105) of the first decision component SIR estimation module (101), the second decision component as shown in Figure 3.Wherein the first decision component SIR estimation module (101) is used to calculate the signal interference ratio of received signal, and the second decision component estimation module (110) is used for estimated path quantity, and he can be a module 102.CQI selects the mapping relations of module (105) use shown in table four form, selects appropriate C QI according to the above first decision component SIR and the second decision component m.

The execution flow process of present embodiment is as shown in Figure 4:

A:(301) with the received signal be process object, periodically measure and estimate variablees such as SIR, RX path quantity;

B:(302) when requiring to report this user CQI value, the first decision component SIR and the second decision component m more than from measurement module, obtaining;

C:(303) so that (SIR m) is foundation, and the mapping relations (as table four) by itself and CQI obtain the CQI value;

D:(304) the CQI selection result is reported to network terminal.

Signal interference ratio (SIR)	Number of paths	Channel quality indication (CQI)
			SIR 0	1	CQI 1
2	CQI 2
		.		.
M	CQI M
		SIR 1		1	CQI M+1
2	CQI M+2
			.	.
M	CQI 2M
			SIR 2	1	CQI 2M+1
2	CQI 2M+2
		.		.
M	CQI 3M
		.		.	.
.	.		.

Table four

Specific embodiment four:

The structure drawing of device of this embodiment is made up of the estimation module (110) and the CQI selection module (105) of the first decision component SIR estimation module (101), the second decision component as shown in Figure 3.Wherein the first decision component SIR estimation module (101) is used to calculate the SIR of received signal, and the second decision component estimation module (110) is used to estimate the second decision component.The second decision component can be the combination as number of paths m, mobile station speed V, multipath power division attribute D among the embodiment one, also can be the combination as number of paths m, mobile station speed V among the embodiment two, also can be as number of paths m among the embodiment three.Distinguishing with above embodiment is that CQI selects module (105) to carry out as follows:

1, calculates the correction value SIR_offset of SIR with the second decision component;

2, revise first decision component SIR, the i.e. SIR=SIR+SIR_offset with SIR_offset

3, be the direct mapping of SIR-CQI with revised sir value by mapping relations shown in the table one, calculate CQI

Number of paths	Mobile station speed	The multipath power division	SIR_offset
				1	V 1	D 1	SIR_offset 1
D 2	SIR_offset 2
		.	.

		D H	SIR_offset H
				V 2	D 1	SIR_offset H+1
	D 2	SIR_offset H+2
			.		.
	D H	SIR_offset 2H
			.		.	.
	V N	D 1		SIR_offset (N-1)H+1
			D 2		SIR_offset (N-1)H+2
		.		.
			D H		SIR_offset NH
		2		V 1		D 1	SIR_offset NH+1
D 2	SIR_offset NH+2
			.		.
D H	SIR_offse (N+1)H
			.		.	.
.	.			.
			V N		D 1	SIR_offset (2N-1)H+1
D 2	SIR_offset (2N-1)H+2
				.	.
D H	SIR_offset 2NH
				.	.	.	.
m	V n	D h	SIR_offset (m-1)NH+(n-1)H+h
				.	.	.	.

Table five

The relation of the SIR_offset and the second decision component as shown in Table 5 in this embodiment, the second decision component that provides in the table is defined as the combination of number of paths m, mobile station speed V, multipath power division attribute D, can provide with reference to this table as for other combining forms.Considered in the second decision component of the influence of 3 variablees in the table to SIR_offset comprehensively.The concrete numerical value of SIR_offset should be obtained by emulation or actual test.

Below adopt the necessity of method and apparatus of the present invention again with the formal specification of mathematical modeling and simulation result.

	Signal to noise ratio (dB)	Number of paths	Mobile station speed	CQI
					Case one	1	2	3km/h	14
Case two	1	3	3km/h	12

Table six A

	Signal to noise ratio (dB)	Number of paths	Mobile station speed	The footpath maximum power ratio	CQI
						Case three	1	4	120km/h	10dB	11
Case four	1	4	250km/h	10dB	9

Table six B

	Signal to noise ratio (dB)	Number of paths	Mobile station speed	The footpath maximum power ratio	CQI
						Case five	1	2	3km/h	10dB	14
Case six	1	2	3km/h	0dB	13

Table six C

As above shown in the table six, emulation provides 3 groups of simulation results of totally 6 cases, and in these 6 cases, the transmitted power of transmitting terminal is all identical with ambient noise to be that signal to noise ratio is identical, thereby should draw the measured value of identical SIR for a reliable sir measurement algorithm.

In transmission environment was provided with, first group of mobile station speed was identical, and case one is provided with 2 transmission paths, and case two is provided with 3 transmission paths, by obtain after the emulation satisfy Block Error Rate near 10% CQI shown in table six A.As can be seen from the figure under the identical situation of other conditions, number of paths can not be ignored the influence of CQI value.

In second group of emulation, their transmission path all is 4 paths, but case three mobile station speeds are 120km/h, and case four is 250km/h.Simulation result sees Table six B.As can be seen from the figure under the identical situation of other conditions, mobile station speed can not be ignored the influence of CQI value.

In the 3rd group of emulation, it is that 2 footpaths and mobile station speed are 3km/h that two cases are provided with identical number of paths, but the power ratio of five liang of paths of case is 10dB, and the power ratio of six liang of paths of case is 0dB.This group simulation result sees Table six C.As can be seen, under all identical situation of other conditions, the power division in path can not be ignored the influence of CQI from simulation result.

If in the CQI selection course, do not adopt method and apparatus of the present invention, must be identical CQI value according to what report to give network terminal under the identical situation of receiver measured SIR so, that will inevitably reduce the data traffic of some case lower network.After having adopted method and apparatus of the present invention, according to the estimation of number of paths and mobile station speed reliably, can correctly differentiate above 6 cases, so the user report to the CQI value of network also more accurate, thereby network can both reach maximum data traffic in each case.

In sum, adopted apparatus and method of the present invention, according to correlated variables estimation reliably, the actual report of user side gives the CQI value of network terminal more accurate, network function is further optimized, so the user can enjoy the data traffic that network can reach maximum.

Claims (13)

1, a kind of quality of wireless channel indication choice device, it is characterized in that, select module to form by the first decision component signal interference ratio estimation module, the second decision component estimation module and quality of wireless channel indication, wherein: the described first decision component signal interference ratio estimation module is used for received signal and measurements and calculations received signal signal interference ratio, then this received signal signal interference ratio is reached described quality of wireless channel indication and selects module; The described second decision component estimation module is used for received signal and estimates the second decision component, then this second decision component is reached described quality of wireless channel indication and selects module; Described quality of wireless channel indication selects module to determine the quality of wireless channel indicated value according to this received signal signal interference ratio and the second decision component.

2, quality of wireless channel indication choice device according to claim 1, it is characterized in that, the described second decision component estimation module comprises the number of paths estimation module, be used for received signal and calculate wireless channel path number, this wireless channel path number is reached described quality of wireless channel indication select module; The described second decision component is the wireless channel number of paths.

3, quality of wireless channel indication choice device according to claim 2 is characterized in that, it is the wireless channel number of paths that the described second decision component estimation module adopts the algorithm of route searching to obtain the second decision component.

4, quality of wireless channel indication choice device according to claim 2, it is characterized in that, the described second decision component estimation module also comprises the mobile station speed estimation module, be used for received signal and estimate the translational speed of travelling carriage, the translational speed of this travelling carriage is reached described quality of wireless channel indication select module; The described second decision component can also comprise the translational speed of travelling carriage.

5, quality of wireless channel indication choice device according to claim 4 is characterized in that, described mobile station speed estimation module adopts method, autocorrelation method or the small wave converting method of statistics level crossing rate (lcr) to estimate the translational speed of travelling carriage.

6, quality of wireless channel indication choice device according to claim 4, it is characterized in that, the described second decision component estimation module also comprises multipath power division statistical module, be used for received signal and add up multipath power division attribute, this multipath power division attribute is reached described quality of wireless channel indication select module; The described second decision component can also comprise multipath power division attribute.

7, quality of wireless channel indication choice device according to claim 6 is characterized in that described multipath power division statistical module adopts the power calculation value of every paths in the Multipath searching algorithm, the characteristic of statistics multipath power division attribute.

8, a kind of quality of wireless channel that is applied on claim 6 or the 7 described quality of wireless channel indication choice devices is indicated system of selection, it is characterized in that, following steps are carried out in circulation: step 1, signal interference ratio, RX path quantity, mobile station speed and four variablees of multipath power division attribute of periodic measurement of measurement module and estimating received signal; Step 2, when requiring to report the quality of wireless channel indicated value, the signal interference ratio of the received signal of read step one gained, RX path quantity, mobile station speed and four variablees of multipath power division attribute variable from measurement module; Step 3, be foundation, select the quality of wireless channel indicated value by mapping relations as shown in the table with described four variablees;

Signal interference ratio (SIR) Number of paths Mobile station speed The footpath maximum power ratio Channel quality indication (CQI) SIR ₀ 1 V ₁ D ₁ CQI ₁ D ₂ CQI ₂ · · D _H CQI _H V ₂ D ₁ CQI _H+1 D ₂ CQI _H+2 · ·

D _H CQI _2H · V _N · · D ₁ CQI _(N-1)H÷1 D ₂ CQI _(N-1)H+2 · · D _H CQI _NH 2 V ₁ D ₁ CQI _NH+1 D ₂ CQI _NH+2 · · D _H CQI _(N+1)H · · · V _N D ₁ CQI _(2N-1)H+1 D ₂ CQI _(2N-1)H+2 · · D _H CQI _2NH · · · · · · · · M V ₁ D ₁ CQI _(M-1)NH+1 D ₂ CQI _(M-1)NH+2 · · D _H CQI _(M-1)NH+H · · · V _N D ₁ CQI _{(M-1)NH+(N-1)H+1} D ₂ CQI _{(M-1)NH+(N-1)H+2} · · D _H CQI _MNH SIR ₁ 1 V ₁ D ₁ CQI _MNH+1 D ₂ CQI _MNH+2 · · D _H CQI _MNH+H · V _N · · D ₁ CQI _MNH+(N-1)H+1 D ₂ CQI _MNH+(N-1)H+2 · · D _H CQI _MNH+NH 2 V ₁ D ₁ CQI _MNH+NH+1 D ₂ CQI _MNH+NH+2 · · D _H CQI _MNH+(N+1)H · · · V _N D ₁ CQI _{MNH+(2N-1)H+1} D ₂ CQI _{MNH+(2N-1)H+2} · ·

D _H CQI _MNH+2NH · · · · · · · · M V ₁ D ₁ CQI _{MNH+(M-1)NH+1} D ₂ CQI _{MNH+(M-1)NH+2} · · D _H CQI _{MNH+(M-1)NH+H} · · · V _N D ₁ CQI _{MNH+(M-1)NH+(N-1)H+1} D ₂ CQI _{MNH+(M-1)NH+(N-1)H+2} · · D _H CQI _2MNH · · · · · SIR _i m V _n D _h CQI _{iMNH+(m-1)NH+(n-1)H+h} · · · · ·

Step 4 indicates the result to report the quality of wireless channel of step 3 gained to network terminal.

9, quality of wireless channel indication system of selection according to claim 8, it is characterized in that, quality of wireless channel indication on the described quality of wireless channel indication choice device selects module to carry out following steps: step 1, with the correction value of the second decision component calculating received signal signal interference ratio, i.e. SIR_offset; Step 2, revise first decision component received signal signal interference ratio, i.e. the received signal signal interference ratio=received signal signal interference ratio+SIR_offset with SIR_offset;

Signal interference ratio (SIR) Channel quality indication (CQI) SIR ₀ CQI ₀ SIR ₁ CQI ₁ SIR ₂ CQI ₂ SIR ₃ CQI ₃ SIR ₄ CQI ₄ SIR _n CQI _n

Step 3, calculate the quality of wireless channel indicated value by mapping relations shown in the last table with revised received signal signal interference ratio value.

10, a kind of quality of wireless channel that is applied on claim 4 or the 5 described quality of wireless channel indication choice devices is indicated system of selection, it is characterized in that, following steps are carried out in circulation: step 1, signal interference ratio, RX path quantity and three variablees of mobile station speed of periodic measurement of measurement module and estimating received signal; Step 2, when requiring to report the quality of wireless channel indicated value, the signal interference ratio of the received signal of read step one gained, RX path quantity and three variablees of mobile station speed from measurement module; Step 3, be foundation, select the quality of wireless channel indicated value by mapping relations as shown in the table with described three variablees;

Signal interference ratio (SIR) Number of paths Mobile station speed Channel quality indication (CQI) SIR ₀ 1 V ₁ CQI ₁ V ₂ CQI ₂ · · V _N CQI _N 2 V ₁ CQI _N+1 V ₂ CQI _N+2 · · V _N CQI _2N · · · · · · M V ₁ CQI _(M-1)N+1 V ₂ CQI _(M-1)N+2 · ·

V _N CQI _MN SIR ₁ 1 V ₁ CQI _MN+1 V ₂ CQI _MN+2 · · V _N CQI _(M+1)N · · · · · · M V ₁ CQI _(2M-1)N+1 V ₂ CQI _(2M-1)N+2 · · V _N CQI _2MN SIR ₂ 1 V ₁ CQI _2MN+1 V ₂ CQI _2MN+2 · · V _N CQI _(2M+1)N · · · · · · M V ₁ CQI _(3M-1)N+1 V ₂ CQI _(3M-1)N+2 · · V _N CQI _3MN · · · · SIR _i m V _n CQI _iMN+(m-1)N+n · · · ·

Step 4 indicates the result to report the quality of wireless channel of step 3 gained to network terminal.

11, quality of wireless channel indication system of selection according to claim 10, it is characterized in that, quality of wireless channel indication on the described quality of wireless channel indication choice device selects module to carry out following steps: step 1, with the correction value of the second decision component calculating received signal signal interference ratio, i.e. SIR_offset; Step 2, revise first decision component received signal signal interference ratio, i.e. the received signal signal interference ratio=received signal signal interference ratio+SIR_offset with SIR_offset;

Signal interference ratio (SIR) Channel quality indication (CQI) SIR0 CQI ₀ SIR ₁ CQI ₁ SIR ₂ CQI ₂ SIR ₃ CQI ₃ SIR ₄ CQI ₄ SIR _n CQI _n

Step 3, calculate the quality of wireless channel indicated value by mapping relations shown in the last table with revised received signal signal interference ratio value.

12, a kind of quality of wireless channel that is applied on the described quality of wireless channel indication of claim 2 choice device is indicated system of selection, it is characterized in that, following steps are carried out in circulation: step 1, signal interference ratio and two variablees of RX path quantity of periodic measurement of measurement module and estimating received signal; Step 2, when requiring to report the quality of wireless channel indicated value, two variablees of the signal interference ratio of the received signal of read step one gained and RX path quantity from measurement module; Step 3, be foundation, select the quality of wireless channel indicated value by mapping relations as shown in the table with described three variablees;

Signal interference ratio (SIR) Number of paths Channel quality indication (CQI) SIR ₀ 1 CQI ₁ 2 CQI ₂ · · M CQI _M SIR ₁ 1 CQI _M+1 2 CQI _M+2 · · M CQI _2M SIR ₂ 1 CQI _2M+1

2 CQI _2M+2 · · M CQI _3M · · · · · ·

Step 4 indicates the result to report the quality of wireless channel indicating channel mass value of step 3 gained to network terminal.

13, quality of wireless channel indication system of selection according to claim 12, it is characterized in that, quality of wireless channel indication on the described quality of wireless channel indication choice device selects module to carry out following steps: step 1, with the correction value of the second decision component calculating received signal signal interference ratio, i.e. SIR_offset; Step 2, revise first decision component received signal signal interference ratio, i.e. the received signal signal interference ratio=received signal signal interference ratio+SIR_offset with SIR_offset;

Signal interference ratio (SIR) Channel quality indication (CQI) SIR ₀ CQI ₀ SIR ₁ CQI ₁ SIR ₂ CQI ₂ SIR ₃ CQI ₃ SIR ₄ CQI ₄ SIR _n CQI _n

Step 3, calculate the quality of wireless channel indicated value by mapping relations shown in the last table with revised received signal signal interference ratio value.