Abstract
Disclosed is a method for transmitting a channel signal in a base station of a mobile communication system which scrambles a common channel signal using a primary scrambling code for identifying the base station. The method comprises determining an identifier (ID) of a secondary scrambling code upon receipt of a dedicated channel assignment request from a mobile station; transmitting the determined ID of the secondary scrambling code to the mobile station and awaiting a response; upon receipt of a response message from the mobile station generating a primary scrambling code and a secondary scrambling code using an ID of the primary scrambling code and said ID of the secondary scrambling code; and scrambling a common channel signal using the primary scrambling code scrambling a dedicated channel signal using the secondary scrambling code and transmitting the scrambled channel signals.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Number | ||||||
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Specification Information
Specification Information
Technologies
Family Information
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
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Technologies
Resource configuration Multiple access
Product
User Equipment (UE/Terminal)Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Transmitting/receiving of data channel
Claim
1. A method for data transmission by a base station, the method comprising the steps of:
upon receipt of an assignment request of a data channel from a mobile station, determining a secondary scrambling code identifier (ID);
transmitting the secondary scrambling code ID to the mobile station;
generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code;
generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code;
scrambling a common channel using the primary scrambling code for identifying the base station;
scrambling the data channel using the secondary scrambling code; and
transmitting the scrambled common and data channel.', 'upon receipt of an assignment request of a data channel from a mobile station, determining a secondary scrambling code identifier (ID);', 'transmitting the secondary scrambling code ID to the mobile station;', 'generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code;', 'generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code;', 'scrambling a common channel using the primary scrambling code for identifying the base station;', 'scrambling the data channel using the secondary scrambling code; and', 'transmitting the scrambled common and data channel.
2. The method of claim 1, further comprising the steps of:
analyzing a capacity of orthogonal codes used with the primary scrambling code;
determining to use the secondary scrambling code, if the capacity of orthogonal codes is insufficient; and
determining to use only the primary scrambling code, if the capacity of orthogonal codes is sufficient.', 'analyzing a capacity of orthogonal codes used with the primary scrambling code;', 'determining to use the secondary scrambling code, if the capacity of orthogonal codes is insufficient; and', 'determining to use only the primary scrambling code, if the capacity of orthogonal codes is sufficient.
3. The method of claim 1, wherein the secondary scrambling code ID is comprised of 4 bits.
4. The method of claim 1, wherein the secondary scrambling code ID is transmitted over a common control channel using the primary scrambling code.
5. The method of claim 1, wherein the secondary scrambling code ID is transmitted over a dedicated channel in service.
6. The method of claim 1, wherein the scrambling codes generating step comprises the steps of:
generating a masked sequence by masking a first sequence with a mask;
generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and
outputting the generated scrambling codes as a real component scrambling code,
and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.', 'generating a masked sequence by masking a first sequence with a mask;', 'generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and', 'outputting the generated scrambling codes as a real component scrambling code,', 'and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.
7. An apparatus for data transmission in a base station, comprising:
a receiver for receiving an assignment request of data channel from a mobile station, and determining a secondary scrambling code identifier (ID);
a transmitter for transmitting the secondary scrambling code ID to the mobile station;
a scrambling code generator for generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling ID by one to one mapping the primary scrambling code ID to the primary scrambling code, and generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code;
a scrambler for scrambling a common channel using the primary scrambling code for identifying a base station, and scrambling the data channel using the secondary scrambling code; and
a transmitter for transmitting the scrambled common and data channel.', 'a receiver for receiving an assignment request of data channel from a mobile station, and determining a secondary scrambling code identifier (ID);', 'a transmitter for transmitting the secondary scrambling code ID to the mobile station;', 'a scrambling code generator for generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling ID by one to one mapping the primary scrambling code ID to the primary scrambling code, and generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code;', 'a scrambler for scrambling a common channel using the primary scrambling code for identifying a base station, and scrambling the data channel using the secondary scrambling code; and', 'a transmitter for transmitting the scrambled common and data channel.
8. The apparatus of claim 7, further comprising a controller for analyzing a capacity of orthogonal codes used with the primary scrambling code for a channel assignment for the mobile station, determining to use the secondary scrambling code when the capacity of orthogonal codes is insufficient, and determining to use the primary scrambling code when the capacity of orthogonal codes is sufficient.
9. The apparatus of claim 7, wherein the secondary scrambling code ID is comprised of 4 bits
10. The apparatus of claim 7, wherein the secondary scrambling code ID is transmitted over a common control channel using the primary scrambling code
11. The apparatus of claim 7, wherein the secondary scrambling code ID is transmitted over a dedicated channel presently in service
12. The apparatus of claim 7, wherein the scrambling code generator comprising:
a first sequence generator for generating a masked sequence by masking a first sequence with a mask;
a adder for generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and
output port for outputting the generated scrambling codes as real component scrambling codes, and imaginary part scrambling codes generated by shifting the real part scrambling codes by a specific chip period.', 'a first sequence generator for generating a masked sequence by masking a first sequence with a mask;', 'a adder for generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and', 'output port for outputting the generated scrambling codes as real component scrambling codes, and imaginary part scrambling codes generated by shifting the real part scrambling codes by a specific chip period
13. A method for data transmission by a mobile station, the method comprising the steps of:
transmitting an assignment request of a channel to a base station;
receiving a secondary scrambling code identifier (ID) being comprised of 4 bits from the base station;
generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code;
generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code; and
descrambling a common control channel with the generated primary scrambling code and a data channel with the generated secondary scrambling code.', 'transmitting an assignment request of a channel to a base station;', 'receiving a secondary scrambling code identifier (ID) being comprised of 4 bits from the base station;', 'generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code;', 'generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code; and', 'descrambling a common control channel with the generated primary scrambling code and a data channel with the generated secondary scrambling code.14. The method of claim 13, wherein the scrambling codes generating step comprises the steps of:
generating a masked sequence by masking a first sequence with a mask;
generating the secondary scrambling code by adding the masked sequence to a second sequence; and
outputting the generated scrambling codes as a real component scrambling codes, and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.', 'generating a masked sequence by masking a first sequence with a mask;', 'generating the secondary scrambling code by adding the masked sequence to a second sequence; and', 'outputting the generated scrambling codes as a real component scrambling codes, and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.15. An apparatus for data transmission in a mobile station, comprising:
a controller for requesting an assignment of a channel to a base station;
a receiver for receiving a secondary scrambling code identifier (ID) being comprised of 4 bits from the base station;
a scrambling code generator for generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code, and generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code; and
a descrambler for descrambling a common control channel with the generated primary scrambling code and a data channel with the generated secondary scrambling code.', 'a controller for requesting an assignment of a channel to a base station;', 'a receiver for receiving a secondary scrambling code identifier (ID) being comprised of 4 bits from the base station;', 'a scrambling code generator for generating a primary scrambling code corresponding to a primary scrambling code ID using the primary scrambling code ID by one to one mapping the primary scrambling code ID to the primary scrambling code, and generating a secondary scrambling code using the primary scrambling code ID and the secondary scrambling code ID by one to one mapping a combination of the secondary scrambling code ID and the primary scrambling code ID to the secondary scrambling code, wherein at least one secondary scrambling code depends on the corresponding primary scrambling code; and', 'a descrambler for descrambling a common control channel with the generated primary scrambling code and a data channel with the generated secondary scrambling code.16. The apparatus of claim 15, wherein the scrambling codes generator comprising:
a first sequence generator for generating a masked sequence by masking a first sequence with a mask;
an adder for generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and
an output port for outputting the generated scrambling codes as a real component scrambling code, and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.', 'a first sequence generator for generating a masked sequence by masking a first sequence with a mask;', 'an adder for generating the primary scrambling code and the secondary scrambling code by adding the masked sequence with a second sequence; and', 'an output port for outputting the generated scrambling codes as a real component scrambling code, and an imaginary part scrambling code generated by shifting the real part scrambling code by a specific chip period.17. The method of claim 13, wherein the secondary scrambling code ID is comprised of 4 bits.18. The method of claim 13, wherein the secondary scrambling code ID is received over the common control channel using the primary scrambling code.19. The method of claim 13, wherein the primary scrambling code ID is assigned to the base station for identifying the base station.
20. The apparatus of claim 15, wherein the secondary scrambling code ID is comprised of 4 bits.
21. The apparatus of claim 15, wherein the secondary scrambling code ID is transmitted over a common control channel using the primary scrambling code.
22. The apparatus of claim 15, wherein the primary scrambling code ID is assigned to the base station for identifying the base station.
23. The method of claim 13, wherein the secondary scrambling code ID is transmitted over a dedicated channel in service.
24. The apparatus of claim 15, wherein the secondary scrambling code ID is transmitted over a dedicated channel in service.']
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SUMMARY
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Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
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