Method and system for notification of scrambling code identification signalling group

• US 20140018086A1
• Filed: 11/29/2011
• Published: 01/16/2014
• Est. Priority Date: 01/19/2011
• Status: Active Grant

• Current Assignee: Eight Deer Ventures LLC (Markman Advisors LLC)
• Original Assignee: ZTE Corporation
• Inventors: Guo, Senbao, Sun, Yunfeng, Zhang, Chenchen, Ren, Min, Gou, Wei
• Granted Patent: US 9,350,507 B2
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04L 1/0038 Blind format detection for detection of modulation format H04L27/0012
• CPC Class Codes: H04L 25/0224 using sounding signals
• CPC Class Codes: H04L 25/03866 using scrambling
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/0091 Signaling for the administration of the divided path

Abstract

Disclosed in the present disclosure is a method for notification of scrambling code identification signalling group, and the present disclosure comprises: a network side transmits a scrambling code identification signalling group to a receiver; the receiver generates a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group, generates a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and performs channel estimation according to the pilot symbol sequence. The present disclosure also provides a system for implementing the notification of scrambling code identification signalling group. According to the technical solution in the disclosure, the receiver can obtain, according to the scrambling code identification signalling group transmitted from the network side, the scrambling code sequence of the demodulation reference signal and/or demodulation pilot which is the same as that of the network side, and thus interference can be avoided.

Claims

1. A method for notification of scrambling code identification signalling group, wherein the method comprises:

receiving, by a receiver, a scrambling code identification signalling group;

generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group;

generating a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot; and

performing channel estimation according to the pilot symbol sequence.

2. The method according to claim 1, wherein

the scrambling code identification signalling group comprises a virtual identification signalling, and/or a virtual identification enabling signalling and/or a virtual identification index signalling.

3. The method according to claim 2, wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, the step of receiving, by a receiver, a scrambling code identification signalling group and the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise:

receiving, by the receiver, the virtual identification signalling via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling, and receiving, by the receiver, the virtual identification signalling in the received SIB or RRC signalling;

receiving, by the receiver, the RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for Downlink Control Information (DCI) by 1 bit when the receiver is a potential virtual identification signalling user, and performing detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

obtaining, by the receiver, the virtual identification index signalling corresponding to the receiver according to the detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, the step of receiving, by a receiver, a scrambling code identification signalling group and the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

receiving, by the receiver, the virtual identification signalling through a System Information Block (SIB) or a Radio Resource Control (RRC), and receiving, by the receiver, the virtual identification signalling in the received SIB or RRC;

receiving, by the receiver, an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for received DCI by log₂ N bits when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

obtaining, by the receiver, the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling, wherein N is the number of virtual cell identifications in the virtual identification signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling and the virtual identification index signalling, the step of receiving, by a receiver, a scrambling code identification signalling group and the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

receiving, by the receiver, the virtual identification signalling via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling, and storing, by the receiver, the virtual identification signalling in the received SIB or RRC signalling;

performing, by the receiver, blind detection for DCI by 1 bit or log₂ N bits, obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

4. The method according to claim 3, wherein the step of obtaining, by the receiver, the virtual identification signalling comprises:

calculating, by the receiver, the virtual identification signalling directly or indirectly through other obtained 1 bit parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI.

7. The method according to claim 2, wherein when the scrambling code identification signalling group comprises the virtual identification index signalling, the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises:

obtaining, by the receiver, the virtual identification signalling, performing blind detection for DCI by log₂ N bits or 1 bit, obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

obtaining, by the receiver, the virtual identification signalling and receiving the obtained virtual identification signalling;

receiving, by the receiver, an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for DCI by 1 bit when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

obtaining, by the receiver, the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

obtaining, by the receiver, the virtual identification signalling and storing the obtained virtual identification signalling;

receiving, by the receiver, an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for DCI by log₂ N bits when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

obtaining, by the receiver, the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

10. The method according to claim 7, wherein the step of obtaining, by the receiver, the virtual identification signalling comprises:

calculating, by the receiver, the virtual identification signalling directly or indirectly through other obtained parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI, wherein when calculating by using n_SCID, the value of N is 1.

5-6. -6. (canceled)

8-9. -9. (canceled)

11-12. -12. (canceled)

13. A method for notification of scrambling code identification signalling group, wherein the method comprises:

transmitting, by a network side, a scrambling code identification signalling group to a receiver, wherein the scrambling code identification signalling group is configured to enable the receiver to;

generate a corresponding scrambling code sequence of a demodulation pilot, and generate a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and perform channel estimation according to the pilot symbol sequence.

14. The method according to claim 13, wherein

the scrambling code identification signalling group comprises a virtual identification signalling, and/or a virtual identification enabling signalling and/or a virtual identification index signalling.

15. The method according to claim 14, wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, the step of transmitting, by a network side, a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise:

transmitting, by the network side, the virtual identification signalling to the receiver via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling;

indicating, by the network side, whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in the RRC signalling, wherein when the receiver is a potential virtual identification signalling user, a blind detection for Downlink Control Information (DCI) by 1 bit is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, the step of transmitting, by a network side, a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

transmitting, by the network side, the virtual identification signalling to the receiver through a System Information Block (SIB) or a Radio Resource Control (RRC);

indicating, by the network side, whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for received DCI by log₂ N bits is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling, wherein N is the number of virtual cell identifications in the virtual identification signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling and the virtual identification index signalling, the step of transmitting, by a network side, a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

transmitting, by the network side, the virtual identification signalling to the receiver via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling;

enabling the receiver to perform blind detection for DCI by 1 bit or log₂N bits, wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

16. The method according to claim 14, wherein when the scrambling code identification signalling group comprises the virtual identification index signalling, the step of enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises:

transmitting, by the network side, the virtual identification signalling, enabling the receiver to perform blind detection for DCI by log₂ N bits or 1 bit, wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, the step of enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

transmitting, by the network side, the virtual identification signalling for storing in the receiver;

indicating, by the network side, whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for DCI by 1 bit is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, the step of generating, by the receiver, a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

obtaining, by the receiver, the virtual identification signalling and storing the obtained virtual identification signalling;

indicating, by the network side, whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for DCI by log₂ N bits is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

17. The method according to claim 16, wherein the step of enabling the receiver to obtain the virtual identification signalling comprises:

enabling the receiver to calculate the virtual identification signalling directly or indirectly through other obtained parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI, wherein when calculating by using n_SCID, the value of N is 1.

28. The method according to claim 15, wherein the step of transmitting, by the network side, the virtual identification signalling comprises:

transmitting other 1 bit parameters including a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI to directly or indirectly indicate the virtual identification signalling to receiver.

18. A receiver for notification of scrambling code identification signalling group, comprising:

means for receiving a scrambling code identification signalling group;

means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group;

means for generating a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot; and

means for performing channel estimation according to the pilot symbol sequence.

19. The receiver according to claim 18, wherein

the scrambling code identification signalling group comprises a virtual identification signalling, and/or a virtual identification enabling signalling and/or a virtual identification index signalling.

20. The receiver according to claim 19, wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, means for receiving a scrambling code identification signalling group and means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise:

means for receiving the virtual identification signalling via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling, and receiving, by the receiver, the virtual identification signalling in the received SIB or RRC signalling;

means for receiving the RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for Downlink Control Information (DCI) by 1 bit when the receiver is a potential virtual identification signalling user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

means for obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, means for receiving a scrambling code identification signalling group and means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

means for receiving the virtual identification signalling through a System Information Block (SIB) or a Radio Resource Control (RRC), and receiving, by the receiver, the virtual identification signalling in the received SIB or RRC;

means for receiving an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for received DCI by log₂ N bits when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

means for obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling, wherein N is the number of virtual cell identifications in the virtual identification signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling and the virtual identification index signalling, means for receiving a scrambling code identification signalling group and means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

means for receiving the virtual identification signalling via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling, and storing, by the receiver, the virtual identification signalling in the received SIB or RRC signalling;

means for performing blind detection for DCI by 1 bit or log₂ N bits, obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

21. The receiver according to claim 19, wherein when the scrambling code identification signalling group comprises the virtual identification index signalling, means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises:

means for obtaining the virtual identification signalling, performing blind detection for DCI by log₂ N bits or 1 bit, obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

means for obtaining the virtual identification signalling and receiving the obtained virtual identification signalling;

means for receiving an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for DCI by 1 bit when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

means for obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

means for obtaining the virtual identification signalling and storing the obtained virtual identification signalling;

means for receiving an RRC signalling including the virtual identification enabling signalling to indicate whether the receiver is a potential virtual identification signalling user, performing blind detection for DCI by log₂ N bits when the receiver is a potential virtual identification user, and performing blind detection for the DCI by 0 bit when the receiver is not a potential virtual identification user;

means for obtaining the virtual identification index signalling corresponding to the receiver according to the blind detection, and determining the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

22. The receiver according to claim 21, wherein means for obtaining the virtual identification signalling comprises:

means for calculating the virtual identification signalling directly or indirectly through other obtained parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI, wherein when calculating by using n_SCID, the value of N is 1.

29. The receiver according to claim 20, wherein the receiver is configured to calculate the virtual identification signalling directly or indirectly through other obtained 1 bit parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI.

33. The receiver according to claim 18, wherein the receiver comprises a mobile terminal, a handset, a relay station or a HeNodeB.

23. A base station for notification of scrambling code identification signalling group, comprising:

means for transmitting a scrambling code identification signalling group to a receiver, wherein the scrambling code identification signalling group is configured to enable the receiver to;

generate a corresponding scrambling code sequence of a demodulation pilot, and generate a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and perform channel estimation according to the pilot symbol sequence.

24. The base station according to claim 23, wherein

the scrambling code identification signalling group comprises a virtual identification signalling, and/or a virtual identification enabling signalling and/or a virtual identification index signalling.

25. The base station according to claim 24, wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, means for transmitting a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise:

means for transmitting the virtual identification signalling to the receiver via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling;

means for indicating whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in the RRC signalling, wherein when the receiver is a potential virtual identification signalling user, a blind detection for Downlink Control Information (DCI) by 1 bit is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling, the virtual identification enabling signalling and the virtual identification index signalling, means for transmitting a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

means for transmitting the virtual identification signalling to the receiver through a System Information Block (SIB) or a Radio Resource Control (RRC);

means for indicating whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for received DCI by log₂ N bits is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling, wherein N is the number of virtual cell identifications in the virtual identification signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification signalling and the virtual identification index signalling, means for transmitting a scrambling code identification signalling group to a receiver for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprise;

means for transmitting the virtual identification signalling to the receiver via a System Information Block (SIB) or a Radio Resource Control (RRC) signalling;

means for enabling the receiver to perform blind detection for DCI by 1 bit or log₂ N bits, wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

26. The base station according to claim 24, wherein when the scrambling code identification signalling group comprises the virtual identification index signalling, means for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises:

means for transmitting the virtual identification signalling, enabling the receiver to perform blind detection for DCI by log₂ N bits or 1 bit, wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, means for enabling the receiver to generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

means for transmitting the virtual identification signalling for storing in the receiver;

means for indicating whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for DCI by 1 bit is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling;

or wherein when the scrambling code identification signalling group comprises the virtual identification enabling signalling and the virtual identification index signalling, means for generating a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group comprises;

means for obtaining the virtual identification signalling and storing the obtained virtual identification signalling;

means for indicating whether the receiver is a potential virtual identification signalling user through the virtual identification enabling signalling included in an RRC signalling, wherein when the receiver is a potential virtual identification user, a blind detection for DCI by log₂ N bits is performed, and when the receiver is not a potential virtual identification user, a blind detection for the DCI by 0 bit is performed;

wherein the blind detection is for enabling the receiver to obtain the virtual identification index signalling corresponding to the receiver, and determine the virtual identification signalling for generating the scrambling code sequence of the demodulation pilot according to the corresponding virtual identification index signalling.

27. The base station according to claim 26, wherein means for enabling the receiver to obtain the virtual identification signalling comprises:

Means for enabling the receiver to calculate the virtual identification signalling directly or indirectly through other obtained parameters, the other obtained parameters include a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI, wherein when calculating by using n_SCID, the value of N is 1.

30. The base station according to claim 25, wherein means for transmitting the virtual identification signalling comprises:

means for transmitting other 1 bit parameters including a n_SCID parameter in DCI Format 2B, a n_SCID parameter in DCI Format 2C or a n_SCID parameter in new DCI to directly or indirectly indicate the virtual identification signalling to receiver.

31. A receiver for notification of scrambling code identification signalling group, configured to:

receive a scrambling code identification signalling group;

generate a corresponding scrambling code sequence of a demodulation pilot according to the scrambling code identification signalling group;

generate a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot; and

perform channel estimation according to the pilot symbol sequence.

34. The receiver according to claim 31, wherein the receiver comprises a mobile terminal, a handset, a relay station or a HeNodeB.

32. A base station for notification of scrambling code identification signalling group, configured to:

transmit a scrambling code identification signalling group to a receiver, wherein the scrambling code identification signalling group is configured to enable the receiver to;

generate a corresponding scrambling code sequence of a demodulation pilot, and generate a pilot symbol sequence according to the scrambling code sequence of the demodulation pilot, and perform channel estimation according to the pilot symbol sequence.