Method and device for configuring a pilot

1. A method for configuring a pilot, comprising:

configuring a user pilot according to subcarrier indexes of Resource Elements (REs) occupied by the user pilot, wherein the subcarrier indexes of the REs occupied by the user pilot are in subcarrier indexes of REs occupied by user data on Physical Uplink Shared Channel (PUSCH), and comprise the following pilot parameters:

REstart and RBnumber, and further comprise REset and REinterval, wherein the REstart is a subcarrier index of the first RE in the REs occupied by symbols of the user pilot; the RBnumber is a total number of Resource Blocks (RBs) of symbols of the user data; the REset is a minimum number of REs, of which positions are continuous in a frequency-domain, occupied by the user pilot; and the REinterval is the number of subcarriers in an interval between two REsets, which are closest in the frequency-domain, of the user pilot; and

adjusting power of a pilot at a transmitting end and performing pilot resource mapping according to Powerfactor corresponding to the pilot parameters, where Powerfactor=(REset+REinterval)/REset.

2. The method as claimed in claim 1 , wherein when the REinterval is 0, the subcarrier indexes of the REs occupied by the user pilot do not comprise the REset, and the Powerfactor is 1.

3. The method as claimed in claim 1 , wherein configuring the user pilot according to the subcarrier indexes of the REs occupied by the user pilot comprises:

in candidate pilot configuration provided by a system, choosing pilot configuration matching with time-frequency resource allocated for a user corresponding to the user data.

4. The method as claimed in claim 3 , wherein

in the candidate pilot configuration provided by the system, pilot configuration, of which the REinterval is 0, corresponds to traditional time-frequency resource allocated for the user.

5. The method as claimed in claim 1 , wherein adjusting the power of the pilot at the transmitting end and performing the pilot resource mapping according to the Powerfactor corresponding to the pilot parameters comprises:

according to the number of REs actually used by a user, generating, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user;

multiplying the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and performing, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

6. A device for configuring a pilot, comprising:

a configuring component, configured to configure a user pilot according to subcarrier indexes of REs occupied by the user pilot, wherein the subcarrier indexes of the REs occupied by the user pilot are in subcarrier indexes of REs occupied by user data on PUSCH, and comprise the following pilot parameters:

REstart and RBnumber, and further comprise REset and REinterval, wherein the REstart is a subcarrier index of the first RE in the REs occupied by symbols of the user pilot; the RBnumber is a total number of RBs of symbols of the user data; the REset is a minimum number of REs, of which positions are continuous in a frequency-domain, occupied by the user pilot; and the REinterval is the number of subcarriers in an interval between two REsets, which are closest in the frequency-domain, of the user pilot; and

an adjusting component, configured to adjust power of a pilot at a transmitting end and perform pilot resource mapping according to Powerfactor corresponding to the pilot parameters, where Powerfactor=(REset+REinterval)/REset.

7. The device as claimed in claim 6 , wherein when the REinterval is 0, the subcarrier indexes of the REs occupied by the user pilot do not comprise the REset, and the Powerfactor is 1.

8. The device as claimed in claim 6 , wherein the configuring component is configured to choose, in candidate pilot configuration provided by a system, pilot configuration matching with time-frequency resource of occupied by the user data.

9. The device as claimed in claim 8 , wherein

in the candidate pilot configuration provided by the system, pilot configuration, of which the REinterval is 0, corresponds to traditional time-frequency resource occupied by the user data.

10. The device as claimed in claim 6 , wherein the adjusting component comprises:

a generating element, configured to, according to the number of REs actually used by a user, generate, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user; and

a mapping element, configured to multiply the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and perform, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

11. The method as claimed in claim 2 , wherein adjusting the power of the pilot at the transmitting end and performing the pilot resource mapping according to the Powerfactor corresponding to the pilot parameters comprises:

according to the number of REs actually used by a user, generating, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user;

multiplying the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and performing, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

12. The method as claimed in claim 3 , wherein adjusting the power of the pilot at the transmitting end and performing the pilot resource mapping according to the Powerfactor corresponding to the pilot parameters comprises:

according to the number of REs actually used by a user corresponding to the user data, generating, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user;

multiplying the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and performing, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

13. The method as claimed in claim 4 , wherein adjusting the power of the pilot at the transmitting end and performing the pilot resource mapping according to the Powerfactor corresponding to the pilot parameters comprises:

according to the number of REs actually used by a user corresponding to the user data, generating, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user;

multiplying the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and performing, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

14. The device as claimed in claim 7 , wherein the adjusting component comprises:

a generating element, configured to, according to the number of REs actually used by a user corresponding to the user data, generate, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user; and

a mapping element, configured to multiply the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and perform, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

15. The device as claimed in claim 8 , wherein the adjusting component comprises:

a generating element, configured to, according to the number of REs actually used by a user corresponding to the user data, generate, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user; and

a mapping element, configured to multiply the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and perform, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.

16. The device as claimed in claim 9 , wherein the adjusting component comprises:

a generating element, configured to, according to the number of REs actually used by a user corresponding to the user data, generate, at the transmitting end, a pilot code with a length corresponding to the number of the REs actually used by the user; and

a mapping element, configured to multiply the pilot code by the Powerfactor to obtain a pilot code whose power is adjusted, and perform, according to a pilot pattern, the pilot resource mapping for the pilot code whose power is adjusted.