CN101577694A - Method for indicating modulation mode of transmission blocks - Google Patents

Abstract

The invention discloses a method for indicating the modulation mode of transmission blocks, which comprises the following steps: a sender indicates through the modulation mode of a main transmission block and an auxiliary transmission block included in a multiple-bit indicating data stream in a preset mode; and a receiver knows the modulation mode of the main transmission block and the auxiliary transmission block according to multiple bits. By the technical scheme, the problem existing in the reception of multiple transmission blocks can be effectively solved, and the reception of multiple transmission blocks is realized.

Description

The indicating means of modulation mode of transmission blocks

Technical field

The present invention relates to the communications field, and especially, relate to a kind of indicating means of modulation mode of transmission blocks.

Background technology

Multiple-input and multiple-output (Multiple Input Multiple OutPut, abbreviating MIMO as) technology is the popular research field of moving communicating field in recent years, MIMO is characterised in that transmitting set and receiver all introduced many antennas, with respect to the traditional single output of single input (Single Input Single OutPut, abbreviate SISO as) system, mimo system obtains the lifting of power system capacity by space diversity reception to communicate and space multiplexing technique.

Under non-MIMO pattern, modulation intelligence adopts 1bit to indicate, and table 1 shows the mapping mode of modulation configuration in the correlation technique:

xms，1	Modulation system (Modulation Scheme)
		0	QPSK/64QAM
1	16-QAM

Table 1

Wherein, 64 quadrature amplitude modulation (Quadature AmplitudeModulation in the table, abbreviate QAM as) and Quadrature Phase Shift Keying (Quaternary Phase ShiftKeying, abbreviate QPSK as) the identical expression way 0 of use, under single time slot condition, concrete corresponding relation depends on transmission block size (transport block size, size TBS) and the quantity of code channel, that is, set thresholding x:

$0:\left\{\begin{array}{c}\frac{\mathrm{TBS}}{\mathrm{RU}\&times;44\&times;2}\&GreaterEqual;x\&RightArrow;64\mathrm{QAM}\\ \frac{\mathrm{TBS}}{\mathrm{RU}\&times;44\&times;2}<x\&RightArrow;\mathrm{QPSK}\end{array}\right.$ (formula 1).

And under the MIMO pattern, owing to increased the transmission of a data stream information, so, need to increase indication to increasing data stream modulates information, still, in the correlation technique, the existing modulation intelligence indication of reply is not expanded, and, can't indicate the modulation system of two transmission blocks that is.

Summary of the invention

Consider the problems referred to above and make the present invention, for this reason, main purpose of the present invention is to provide a kind of indicating means of modulation mode of transmission blocks, to solve the problem that does not have corresponding modulation intelligence indication in the relevant issues.

A kind of indicating means of modulation mode of transmission blocks is provided according to one embodiment of present invention.

Indicating means according to the modulation mode of transmission blocks of the embodiment of the invention comprises: transmit leg is indicated by the main transmission block that comprises in a plurality of bit designation datas streams and the modulation system of auxilliary transmission block in a predefined manner; The recipient is known the modulation system of main transmission block and auxilliary transmission block according to a plurality of bits.

Preferably, it is 2 that above-mentioned transmit leg carries out the amount of bits that modulation system indication adopted, and the bit of employing comprises corresponding to first bit of main transmission block with corresponding to second bit of auxilliary transmission block.

In addition, above-mentioned transmit leg is in a predefined manner by first bit and the second bit indicating modulation mode, be specially: be at first bit and second bit under 0 the situation, the modulation system of indicating the modulation system of the modulation system of main transmission block and auxilliary transmission block to be Quadrature Phase Shift Keying or main transmission block is that the modulation system of 64 quadrature amplitude modulation and auxilliary transmission block is that the modulation system of Quadrature Phase Shift Keying or main transmission block and the modulation system of auxilliary transmission block are 64 quadrature amplitude modulation; At first bit is that 0, the second bit is that the modulation system of indicating main transmission block is that the modulation system of 64 quadrature amplitude modulation and auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation; At first bit is that 1, the second bit is that the modulation system of indicating main transmission block is that the modulation system of 16 quadrature amplitude modulation and auxilliary transmission block is a Quadrature Phase Shift Keying under 0 the situation; Be at first bit and second bit under 1 the situation, indicate the modulation system of main transmission block and the modulation system of auxilliary transmission block to be 16 quadrature amplitude modulation.

In addition, above-mentioned recipient knows that the processing of modulation system is specially: the recipient judges whether first bit is 1, be judged as under the situation that is, the recipient determines that the modulation system of main transmission block is 16 quadrature amplitude modulation, and be to determine that the modulation system of auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation at second bit, and be to determine that the modulation system of auxilliary transmission block is a Quadrature Phase Shift Keying under 0 the situation at second bit; Judge the recipient first bit is that the recipient judges whether the size of main transmission block and code channel number satisfy predetermined condition under 0 the situation; Satisfying under the situation of predetermined condition, determining that the modulation system of main transmission block is 64 quadrature amplitude modulation, and judging whether second bit is 1, is under 1 the situation at second bit, determines that the modulation system of auxilliary transmission block is 16 quadrature amplitude modulation; At second bit is whether the judge size and the code channel number of auxilliary transmission block of 0 situation satisfies predetermined condition; Under the size of auxilliary transmission block and situation that code channel number satisfies predetermined condition, determine that the modulation system of auxilliary transmission block is 64 quadrature amplitude modulation, otherwise determine that the modulation system of auxilliary transmission block is a Quadrature Phase Shift Keying; First bit be 0 and the size and the code channel number of main transmission block do not satisfy under the situation of predetermined condition, determine that the modulation system of main transmission block and auxilliary transmission block is Quadrature Phase Shift Keying.

Preferably, above-mentioned predetermined condition is: $\frac{\mathrm{TBS}}{\mathrm{RU}\&times;44\&times;2}\&GreaterEqual;x,$ Wherein, TBS is the size of transmission block, and RU is the code channel number of transmission block, and x is a predetermined threshold.

By technique scheme of the present invention, can effectively solve the problem that exists in the reception to many transmission blocks, realized reception to many transmission blocks.

Description of drawings

Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:

Fig. 1 is the flow chart according to the indicating means of the modulation mode of transmission blocks of the embodiment of the invention; And

Fig. 2 is the flow chart of differentiating according to the debud mode of method in the embodiment of the invention.

Embodiment

A kind of indicating means of modulation mode of transmission blocks is provided in the present embodiment.Fig. 1 is the flow chart according to the indicating means of the modulation mode of transmission blocks of the embodiment of the invention, and as shown in the figure, this method may further comprise the steps:

The main transmission block that step S102, transmit leg comprise in flowing by a plurality of bit designation datas in a predefined manner and the modulation system of auxilliary transmission block are indicated;

Step S104, recipient are known the modulation system of main transmission block and auxilliary transmission block according to a plurality of bits.

Preferably, it is 2 that above-mentioned transmit leg carries out the amount of bits that modulation system indication adopted, and the bit of employing comprises corresponding to first bit of main transmission block with corresponding to second bit of auxilliary transmission block.

In addition, shown in following table 2, above-mentioned transmit leg is in a predefined manner by the first bit (xms, 1) and the second bit (xms, 2) indicating modulation mode, be specially: at xms, 1 and xms, 2 are under 0 the situation, and the modulation system of indicating the modulation system of the modulation system of main transmission block and auxilliary transmission block to be Quadrature Phase Shift Keying or main transmission block is that the modulation system of 64 quadrature amplitude modulation and auxilliary transmission block is that the modulation system of Quadrature Phase Shift Keying or main transmission block and the modulation system of auxilliary transmission block are 64 quadrature amplitude modulation; At xms, 1 is 0, xms, and 2 is that the modulation system of indicating main transmission block is that the modulation system of 64 quadrature amplitude modulation and auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation; At xms, 1 is 1, xms, and 2 is that the modulation system of indicating main transmission block is that the modulation system of 16 quadrature amplitude modulation and auxilliary transmission block is a Quadrature Phase Shift Keying under 0 the situation; At xms, 1 and xms, 2 are under 1 the situation, indicate the modulation system of main transmission block and the modulation system of auxilliary transmission block to be 16 quadrature amplitude modulation.

Table 2

In addition, above-mentioned recipient knows that the processing of modulation system is specially: the recipient judges xms, whether 1 be 1, be judged as under the situation that is, the recipient determines that the modulation system of main transmission block is 16 quadrature amplitude modulation, and at xms, and 2 is to determine that the modulation system of auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation, and at xms, 2 is to determine under 0 the situation that the modulation system of auxilliary transmission block is a Quadrature Phase Shift Keying; Judge xms the recipient, 1 is that the recipient judges whether the size of main transmission block and code channel number satisfy predetermined condition under 0 the situation; Satisfying under the situation of predetermined condition, the modulation system of determining main transmission block is 64 quadrature amplitude modulation, and judges xms, and whether 2 be 1, and at xms, 2 is under 1 the situation, to determine that the modulation system of auxilliary transmission block is 16 quadrature amplitude modulation; At xms, 2 is whether the judge size and the code channel number of auxilliary transmission block of 0 situation satisfies predetermined condition; Under the size of auxilliary transmission block and situation that code channel number satisfies predetermined condition, determine that the modulation system of auxilliary transmission block is 64 quadrature amplitude modulation, otherwise determine that the modulation system of auxilliary transmission block is a Quadrature Phase Shift Keying; At xms, 1 be 0 and the size and the code channel number of main transmission block do not satisfy under the situation of predetermined condition, determine that the modulation system of main transmission block and auxilliary transmission block is Quadrature Phase Shift Keying.

Wherein, above-mentioned predetermined condition is: $\frac{\mathrm{TBS}}{\mathrm{RU}\&times;44\&times;2}\&GreaterEqual;x,$ Wherein, TBS is the size of transmission block, and RU is the code channel number of transmission block, and x is a predetermined threshold.

Below, in conjunction with the accompanying drawings, describe the processing idiographic flow that recipient in the above-mentioned processing scheme is known modulation system in detail.Fig. 2 is the detail flowchart of differentiating according to the debud mode of the method for the embodiment of the invention.As shown in Figure 2, may further comprise the steps:

Step 1 reads main piece modulation system bit information, and whether differentiate is 1, if set up then continue execution in step 2, proceeds to step 6 otherwise handle;

Step 2, if be 1, then the modulation system of main piece is 16QAM, and execution in step 3;

Step 3 reads the modulation system bit information of assisting piece, and whether be 1, if then execution in step 4 if differentiating; Otherwise execution in step 5;

Step 4, if be 1, then the modulation system of auxilliary piece is 16QAM;

Step 5, otherwise then the modulation system of auxilliary piece is QPSK;

Step 6 is not under 1 the situation, then to judge in main piece modulation system $\frac{{\mathrm{TBS}}_p}{{\mathrm{RU}}_p\&times;44\&times;2}\&GreaterEqual;x$ Whether set up,, proceed to step 13 otherwise handle if set up then continue execution in step 7, wherein, TBS _pBe the size of main transmission block, RU _pBe the code channel number of main transmission block, x is a predetermined threshold;

Step 7, if set up, then the modulation system of main piece is 64QAM;

Step 8, the modulation system indication bit position of reading auxilliary piece judges whether to be 1;

Step 9, if be 1, then the modulation system of auxilliary piece is 16QAM;

Step 10 if be not 1, is then judged $\frac{{\mathrm{TBS}}_s}{{\mathrm{RU}}_s\&times;44\&times;2}\&GreaterEqual;x$ Whether set up, wherein, TBS _sBe the size of auxilliary transmission block, RU _sBe the code channel number of auxilliary transmission block, x is a predetermined threshold;

Step 11, if judge establishment in the step 10, then the modulation system of auxilliary piece is 64QAM;

Step 12, if judgement is false in the step 10, then the modulation system of auxilliary piece is QPSK;

Step 13 is if judge in the step 6 $\frac{{\mathrm{TBS}}_p}{{\mathrm{RU}}_p\&times;44\&times;2}\&GreaterEqual;x$ Be false, then the modulation system of main piece is QPSK, and then the modulation system of auxilliary piece also is QPSK.

Below, be example with debud mode indication bit [00], technique scheme is elaborated, may further comprise the steps:

(1) 3 kinds of possible compound mode: QPSK/QPSK, 64QAM/QPSK, 64QAM/64QAM are arranged under this kind state.

(2) modulation system of at first definite main piece.

If $\frac{{\mathrm{TBS}}_p}{R{U}_p\&times;44\&times;2}\&GreaterEqual;x$

Determine that then main piece modulation system is 64QAM;

If $\frac{{\mathrm{TBS}}_s}{{\mathrm{RU}}_s\&times;44\&times;2}\&GreaterEqual;x$

Determine that then auxilliary piece modulation system is 64QAM;

Else (promptly $\frac{{\mathrm{TBS}}_s}{{\mathrm{RU}}_s\&times;44\&times;2}<x$ )

Determine that then auxilliary piece modulation system is QPSK;

End

Else (promptly $\frac{{\mathrm{TBS}}_s}{{\mathrm{RU}}_s\&times;44\&times;2}<x$ )

Determine that then main piece modulation system is QPSK;

Because auxilliary piece modulation system can not be higher than main piece, so determine that then auxilliary piece modulation system is QPSK;

End

In sum, the present invention expands existing modulation intelligence indication, has increased the indication to the data stream modulates information that is increased, by means of technical scheme of the present invention, can effectively solve the problem that exists in the reception to many transmission blocks, realize reception many transmission blocks.

The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (5)

1. the indicating means of a modulation mode of transmission blocks is characterized in that, comprising:

The main transmission block that transmit leg comprises in flowing by a plurality of bit designation datas in a predefined manner and the modulation system of auxilliary transmission block are indicated;

The recipient is known the modulation system of described main transmission block and described auxilliary transmission block according to described a plurality of bits.

2. method according to claim 1, it is characterized in that, it is 2 that described transmit leg carries out the amount of bits that modulation system indication adopted, and the described bit of employing comprises corresponding to first bit of described main transmission block with corresponding to second bit of described auxilliary transmission block.

3. method according to claim 2 is characterized in that, described transmit leg is indicated described modulation system with described predetermined way by described first bit and described second bit, is specially:

Be at described first bit and described second bit under 0 the situation, the modulation system of indicating the modulation system of the modulation system of described main transmission block and described auxilliary transmission block to be Quadrature Phase Shift Keying or described main transmission block is that the modulation system of 64 quadrature amplitude modulation and described auxilliary transmission block is that the modulation system of Quadrature Phase Shift Keying or described main transmission block and the modulation system of described auxilliary transmission block are 64 quadrature amplitude modulation;

At described first bit is 0, and described second bit is that the modulation system of indicating described main transmission block is that the modulation system of 64 quadrature amplitude modulation and described auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation;

At described first bit is 1, and described second bit is that the modulation system of indicating described main transmission block is that the modulation system of 16 quadrature amplitude modulation and described auxilliary transmission block is a Quadrature Phase Shift Keying under 0 the situation;

Be at described first bit and described second bit under 1 the situation, indicate the modulation system of described main transmission block and the modulation system of described auxilliary transmission block to be 16 quadrature amplitude modulation.

4. method according to claim 3 is characterized in that, described recipient knows that the processing of described modulation system is specially:

Described recipient judges whether described first bit is 1, be judged as under the situation that is, described recipient determines that the modulation system of described main transmission block is 16 quadrature amplitude modulation, and be to determine that the modulation system of described auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation at described second bit, and be to determine that the modulation system of described auxilliary transmission block is a Quadrature Phase Shift Keying under 0 the situation at described second bit;

Judge described recipient described first bit is that described recipient judges whether the size of described main transmission block and code channel number satisfy predetermined condition under 0 the situation;

Satisfying under the situation of described predetermined condition, the modulation system of determining described main transmission block is 64 quadrature amplitude modulation, and judge whether described second bit is 1, be that the modulation system of determining described auxilliary transmission block is 16 quadrature amplitude modulation under 1 the situation at described second bit; At described second bit is whether the judge size and the code channel number of described auxilliary transmission block of 0 situation satisfies described predetermined condition;

The modulation system of determining described auxilliary transmission block under the situation that the size and the code channel number of described auxilliary transmission block satisfies described predetermined condition is 64 quadrature amplitude modulation, otherwise determines that the modulation system of described auxilliary transmission block is a Quadrature Phase Shift Keying;

Described first bit be 0 and the size and the code channel number of described main transmission block do not satisfy under the situation of described predetermined condition, determine that the modulation system of described main transmission block and described auxilliary transmission block is Quadrature Phase Shift Keying.

5. method according to claim 4 is characterized in that, described predetermined condition is:

$\frac{\mathrm{TBS}}{\mathrm{RU}\&times;44\&times;2}\&GreaterEqual;x,$ Wherein, TBS is the size of transmission block, and RU is the code channel number of transmission block, and x is a predetermined threshold.

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