1. A receiver for receiving a signal transmitted through a transmission channel, comprising:
an equalizer; and
a first quality calculator that obtains a first quality value of the received signal, wherein
the equalizer includes
a first channel estimation unit that estimates a first channel response of the transmission channel from the received signal using a first estimation scheme; and
a second channel estimation unit that estimates a second channel response of the transmission channel from the received signal using a second estimation scheme,
the equalizer equalizes the received signal using the first or second channel response and outputs the equalized signal, and
a portion of the second channel estimation unit halts depending on the first quality value.
2. The receiver of claim 1, wherein
the equalizer further includes a scheme control unit,
the second channel estimation unit obtains, as the second channel response, a channel response corresponding to the second estimation scheme that is successively selected from a plurality of predetermined estimation schemes,
the scheme control unit selects optimal one of the plurality of predetermined estimation schemes based on the second channel response, and informs the first channel estimation unit of the selected estimation scheme,
the first channel estimation unit estimates the first channel response using the estimation scheme informed from the scheme control unit as the first estimation scheme, and
the equalizer equalizes the received signal using the first channel response.
3. The receiver of claim 2, wherein
a portion of the scheme control unit halts depending on the first quality value.
4. The receiver of claim 1, wherein the equalizer
includes a quality determining unit that determines which one of parameters, representing a quality of the received signal, respectively corresponding to the first and second channel responses indicates better quality, and
equalizes the received signal using either one of first and second channel responses that is indicated by the result of determination of the quality determining unit.
5. The receiver of claim 4, wherein
a portion of the quality determining unit halts depending on the first quality value.
6. The receiver of claim 4, further comprising:
a second quality calculator that calculates a second quality value using the received signal and the second channel response, wherein
a portion of the first channel estimation unit halts depending on the second quality value.
7. The receiver of claim 6, wherein
a portion of the second channel estimation unit halts when the first quality value is equal to or higher than a predetermined value and the first quality value is equal to or higher than the second quality value, and
a portion of the first channel estimation unit halts when the second quality value is equal to or higher than the predetermined value and the second quality value is higher than the first quality value.
8. The receiver of claim 6, wherein
a portion of the quality determining unit halts depending on the first and second quality values.
9. The receiver of claim 1, wherein
the first quality calculator obtains the first quality value using the first channel response.
10. The receiver of claim 1, further comprising:
an error corrector that carries out error correction operation about a signal equalized by the equalizer, and that outputs a number of bits whose errors are corrected, wherein
the first quality calculator obtains the first quality value based on the number of bits whose errors are corrected.
11. The receiver of claim 1, wherein
a portion of the second channel estimation unit halts when the first quality value is equal to or higher than a predetermined value.
12. The receiver of claim 1,
the second channel estimation unit includes a computing element used for estimating the second channel response, and
a portion of the second channel estimation unit is halted by stopping supply of a clock to the computing element.
13. The receiver of claim 1, wherein
the second channel estimation unit includes a computing element used for estimating the second channel response, and
a portion of the second channel estimation unit is halted by maintaining a constant level of an input signal to the computing element.
14. The receiver of claim 1, wherein
the second channel estimation unit includes a computing element used for estimating the second channel response, and
a portion of the second channel estimation unit is halted by changing a level of an enable signal that controls operation of the computing element to a level indicating that the operation should be halted.
15. A receiving method for receiving a signal transmitted through a transmission channel, comprising the steps of:
estimating a first channel response of the transmission channel from the received signal using a first estimation scheme,
estimating a second channel response of the transmission channel from the received signal using a second estimation scheme,
equalizing the received signal using the first or second channel response,
obtaining a quality value of the received signal, and
halting a portion of operation for estimating the second channel response depending on the quality value.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
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, andor a virtual identification enabling signalling andor 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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI.
5-6. (canceled)
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.
8-9. (canceled)
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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI, wherein when calculating by using nSCID, the value of N is 1.
11-12. (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, andor a virtual identification enabling signalling andor 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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI, wherein when calculating by using nSCID, the value of N is 1.
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, andor a virtual identification enabling signalling andor 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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI, wherein when calculating by using nSCID, the value of N is 1.
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, andor a virtual identification enabling signalling andor 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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI, wherein when calculating by using nSCID, 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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI to directly or indirectly indicate the virtual identification signalling to receiver.
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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID parameter in new DCI.
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 nSCID parameter in DCI Format 2B, a nSCID parameter in DCI Format 2C or a nSCID 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.
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.
33. The receiver according to claim 18, wherein the receiver comprises a mobile terminal, a handset, a relay station or a HeNodeB.
34. The receiver according to claim 31, wherein the receiver comprises a mobile terminal, a handset, a relay station or a HeNodeB.