Spatial processing with steering matrices for pseudo random transmit steering in a multiantenna communication system
Spatial processing with steering matrices for pseudo random transmit steering in a multiantenna communication system
 CN 1,973,451 B
 Filed: 03/15/2005
 Issued: 11/26/2014
 Est. Priority Date: 04/09/2004
 Status: Active Grant
First Claim
1. generation, for carry out a method for the guiding matrix of spatial manipulation at wireless multiple antenna communication, comprising:
 Obtain fundamental matrix;
Select at least one different scalars combination, each combination comprises at least one scalar at least a line of described fundamental matrix, every row correspondence a scalar, each scalar be real number value or complex values and for the corresponding row that is multiplied by described fundamental matrix to realize multiplying each other of described fundamental matrix and described combination;
AndForm at least one guiding matrix by described fundamental matrix being multiplied by described at least one different scalars combination, wherein, be combined to form a guiding matrix by each scalar.
Chinese PRB Reexamination
Abstract
Techniques for generating and using steering matrices for pseudorandom transmit steering (PRTS) are described. For PRTS, a transmitting entity performs spatial processing with steering matrices so that a data transmission observes an ensemble of '"'"''"'"'effective'"'"''"'"' channels formed by the actual channel used for data transmission and the steering matrices used for PRTS. The steering matrices may be generated by selecting a base matrix, which may be a Walsh matrix or a Fourier matrix. Different combinations of scalars are then selected, with each combination including at least one scalar for at least one row of the base matrix. Each scalar may be a real or complex value (e.g., +1, 1, +j, or j, where j=[square root of]1). Different steering matrices are generated by multiplying the base matrix with each of the different combinations of scalars. The steering matrices are different permutations of the base matrix.
48 Claims

1. generation, for carry out a method for the guiding matrix of spatial manipulation at wireless multiple antenna communication, comprising:

Obtain fundamental matrix; Select at least one different scalars combination, each combination comprises at least one scalar at least a line of described fundamental matrix, every row correspondence a scalar, each scalar be real number value or complex values and for the corresponding row that is multiplied by described fundamental matrix to realize multiplying each other of described fundamental matrix and described combination;
AndForm at least one guiding matrix by described fundamental matrix being multiplied by described at least one different scalars combination, wherein, be combined to form a guiding matrix by each scalar.


2. method according to claim 1, also comprises:
Form multiple steering vectors with the row of described at least one guiding matrix.

3. method according to claim 1, wherein, described fundamental matrix is Walsh matrix.

4. method according to claim 1, wherein, described fundamental matrix is Fourier matrix.

5. method according to claim 1, wherein, described fundamental matrix is the unitary matrice with orthogonal row.

6. method according to claim 1, wherein, each in described at least one guiding matrix has orthogonal row.

7. method according to claim 1, wherein, the scalar comprising in described at least one different scalars combination be from including+1 ,1 ,+j andchoose the set of j, wherein, j is1 square root.

8. method according to claim 1, wherein, each element of described at least one guiding matrix belong to include+1 ,1 ,+j andset of j, wherein, j is1 square root.

9. method according to claim 1, wherein, each in described at least one guiding matrix comprises the element with equal magnitude.

10. method according to claim 1, wherein, described fundamental matrix has the dimension of N ×
 N, and wherein, N is greater than 1 integer, and wherein, each combination comprises N1 the scalar capable for the N1 of described fundamental matrix.

11. methods according to claim 10, wherein, N is 2 power.

12. methods according to claim 1, wherein, described at least one scalar combination is obtained with base K counter, described base K counter has a numerical digit for the every a line in described at least a line of described fundamental matrix, in K scalar of this enforcement use of this digit representation one, wherein, K is the quantity that the available difference of each row of described fundamental matrix may scalar.

13. 1 kinds of generations, for carry out the device of the guiding matrix of spatial manipulation at wireless multiple antenna communication, comprising:

For obtaining the module of fundamental matrix; For selecting the module of at least one different scalar combination, each combination comprises at least one scalar at least a line of described fundamental matrix, every row correspondence a scalar, each scalar be real number value or complex values and for the corresponding row that is multiplied by described fundamental matrix to realize multiplying each other of described fundamental matrix and described combination;
AndFor form the module of at least one guiding matrix by described fundamental matrix being multiplied by described at least one different scalars combination, wherein, be combined to form a guiding matrix by each scalar.


14. devices according to claim 13, wherein, described fundamental matrix is Wa1sh matrix.

15. devices according to claim 13, wherein, each in described at least one guiding matrix has orthogonal row.

16. devices according to claim 13, wherein, each element of described at least one guiding matrix belong to include+1 ,1 ,+j andset of j, wherein, j is1 square root.

17. Carry out the method for spatial manipulation at transmitting entity place for the transfer of data in wireless multiple antenna communication, comprising for 17. 1 kinds:

Deal with data, to obtain the data symbol block that will transmit in multiple transmission spans, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, and it is the time interval of a data symbol of transmission, for multicarrier system, transmission span is corresponding to a subband in a symbol period, and wherein, data symbol is the modulation symbol of data; Obtain multiple guiding matrixs, each in described multiple transmission span corresponding a guiding matrix, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, this at least one scalar is used for being multiplied by least a line of described fundamental matrix, thereby generates corresponding guiding matrix;
AndUse the described guiding matrix obtaining for each transmission span, at least one data symbol that will transmit in described transmission span is carried out to spatial manipulation, and described spatial manipulation causes described data symbol block to observe the multiple efficient channels that form with described multiple guiding matrixs.


18. methods according to claim 17, wherein, described multiple antenna communication utilizes OFDM (OFDM), and wherein, described multiple transmission spans corresponding multiple subbands respectively.

19. methods according to claim 17, wherein, described multiple antenna communication utilizes OFDM (OFDM), and wherein, the one or more subbands in each the corresponding time interval in described multiple transmission spans.

20. methods according to claim 17, wherein, described multiple transmission spans corresponding multiple time intervals respectively.

21. methods according to claim 17, wherein, each guiding matrix has row, and wherein, transmits a data symbol in each transmission span.

22. methods according to claim 17, wherein, each guiding matrix has multiple row, and wherein, transmits multiple data symbols in each transmission span simultaneously.

23. methods according to claim 17, wherein, described fundamental matrix is Walsh matrix.

24. methods according to claim 17, wherein, described fundamental matrix is Fourier matrix.

25. methods according to claim 17, wherein, each in described multiple guiding matrixs has orthogonal row.

26. methods according to claim 17, wherein, each element of described multiple guiding matrixs belong to include+1 ,1 ,+j andset of j, wherein, j is1 square root.

27. methods according to claim 17, wherein, each in described multiple guiding matrixs comprises the element with equal magnitude.

28. methods according to claim 17, wherein, the receiving entity of described data symbol block is not known described multiple guiding matrix.

29. methods according to claim 17, wherein, only the described transmitting entity of described data symbol block and receiving entity are known described multiple guiding matrix.

30. The device at 30. 1 kinds of transmitting entity places in wireless multiple antenna communication, comprising:

Data processor, for the treatment of data, to obtain the data symbol block that will transmit in multiple transmission spans, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, it is the time interval of a data symbol of transmission, and for multicarrier system, transmission span is corresponding to a subband in a symbol period, wherein, data symbol is the modulation symbol of data; Controller, be used for obtaining multiple guiding matrixs, each correspondence in described multiple transmission span a guiding matrix, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, and this at least one scalar is used for being multiplied by least a line of described fundamental matrix, thereby generates corresponding guiding matrix;
AndSpatial processor, use the described guiding matrix obtaining for each transmission span, at least one data symbol that will transmit in described transmission span is carried out to spatial manipulation, and described spatial manipulation causes described data symbol block to observe the multiple efficient channels that form with described multiple guiding matrixs.


31. devices according to claim 30, wherein, each guiding matrix has row, and wherein, transmits a data symbol in each transmission span.

32. devices according to claim 30, wherein, each guiding matrix has multiple row, and wherein, transmits multiple data symbols in each transmission span simultaneously.

33. devices according to claim 30, wherein, described fundamental matrix is Wa1sh matrix.

34. devices according to claim 30, wherein, each element of described multiple guiding matrixs belong to include+1 ,1 ,+j andset of j, wherein, j is1 square root.

35. 1 kinds at transmitting entity place for transfer of data in wireless multiple antenna communication carry out spatial manipulation device, comprising:

For the treatment of data, to obtain the module of the data symbol block that will transmit in multiple transmission spans, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, and it is the time interval of a data symbol of transmission, for multicarrier system, transmission span is corresponding to a subband in a symbol period, and wherein, data symbol is the modulation symbol of data; For obtaining the module of multiple guiding matrixs, each correspondence in described multiple transmission span a guiding matrix, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, this at least one scalar is used for being multiplied by least a line of described fundamental matrix, thereby generates corresponding guiding matrix;
AndFor using the described guiding matrix obtaining for each transmission span, at least one data symbol that will transmit in described transmission span is carried out to the module of spatial manipulation, described spatial manipulation causes described data symbol block to observe the multiple efficient channels that form with described multiple guiding matrixs.


36. devices according to claim 35, wherein, each guiding matrix has row, and wherein, transmits a data symbol in each transmission span.

37. devices according to claim 35, wherein, each guiding matrix has multiple row, and wherein, transmits multiple data symbols in each transmission span simultaneously.

38. 1 kinds of receiving entity places in wireless multiple antenna communication carry out the method for receiver space processing, comprising:

Estimate and multiple guiding matrix based on channel response, derive multiple spatial filter matrices, each correspondence in multiple transmission spans a guiding matrix, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, it is the time interval of a data symbol of transmission, for multicarrier system, transmission span is corresponding to a subband in a symbol period, wherein, data symbol is the modulation symbol of data, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, this at least one scalar is for being multiplied by least a line of described fundamental matrix, thereby generate corresponding guiding matrix, and In multiple transmission spans, obtain R receiving symbol sequence via R reception antenna, wherein, R is equal to or greater than 1 integer; Described R receiving symbol sequence carried out to receiver space processing with described multiple spatial filter matrices, to obtain detected symbol.


39. according to the method described in claim 38, and wherein, described multiple antenna communication utilizes OFDM (OFDM), and wherein, described multiple transmission spans corresponding multiple subbands respectively.

40. according to the method described in claim 38, wherein, and described multiple transmission spans corresponding multiple time intervals respectively.

41. according to the method described in claim 38, and wherein, each guiding matrix has row, and wherein, each spatial filter matrices has 1 ×
 1 dimension.

42. according to the method described in claim 38, and wherein, each guiding matrix has N row, and wherein, each spatial filter matrices has the dimension of N ×
 R, and wherein, N and R are greater than 2 integer.

43. The device at 43. 1 kinds of receiving entity places in wireless multiple antenna communication, comprising:

Controller, estimate and multiple guiding matrix based on channel response, derive multiple spatial filter matrices, each correspondence in multiple transmission spans a guiding matrix, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, this at least one scalar is for being multiplied by least a line of described fundamental matrix, thereby generate corresponding guiding matrix, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, it is the time interval of a data symbol of transmission, for multicarrier system, transmission span is corresponding to a subband in a symbol period, wherein, data symbol is the modulation symbol of data, and Spatial processor, for; In multiple transmission spans, obtain R receiving symbol sequence via R reception antenna, wherein, R is equal to or greater than 1 integer;
AndDescribed R receiving symbol sequence carried out to receiver space processing with described multiple spatial filter matrices, to obtain detected symbol.


44. according to the device described in claim 43, and wherein, each guiding matrix has row, and wherein, each spatial filter matrices has 1 ×
 1 dimension.

45. according to the device described in claim 43, and wherein, each guiding matrix has N row, and wherein, each spatial filter matrices has the dimension of N ×
 R, and wherein, N and R are greater than 2 integer.

46. 1 kinds of receiving entity places in wireless multiple antenna communication carry out the device of receiver space processing, comprising:

Derive the module of multiple spatial filter matrices based on channel response estimation and multiple guiding matrix, each correspondence in multiple transmission spans a guiding matrix, wherein, described multiple guiding matrix is to generate based on a fundamental matrix scalar combination different with at least one, each combination comprises at least one scalar, this at least one for being multiplied by least a line of described fundamental matrix, thereby generate corresponding guiding matrix, wherein, for singlecarrier system, transmission span is corresponding to a symbol period, it is the time interval of a data symbol of transmission, for multicarrier system, transmission span is corresponding to a subband in a symbol period, wherein, data symbol is the modulation symbol of data, The module of obtaining R receiving symbol sequence via R reception antenna in described multiple transmission spans, wherein, R is equal to or greater than 1 integer;
AndWith described multiple spatial filter matrices, described R receiving symbol sequence execution receiver space processed to obtain the module of detected symbol.


47. according to the device described in claim 46, and wherein, each guiding matrix has row, and wherein, each spatial filter matrices has 1 ×
 1 dimension.

48. according to the device described in claim 46, and wherein, each guiding matrix has N row, and wherein, each spatial filter matrices has the dimension of N ×
 R, and wherein, N and R are greater than 2 integer.
Specification(s)