Method of transmitting data in a mobile communication system
Disclosed is a data transmission method in a mobile communication system. The data transmission method through a code sequence in a mobile communication system includes grouping input data streams into a plurality of blocks consisting of at least one bit so as to map each block to a corresponding signature sequence, multiplying a signature sequence stream, to which the plurality of blocks are mapped, by a specific code sequence, and transmitting the signature sequence stream multiplied by the specific code sequence to a receiver.
1. A system to transmit a preamble sequence from user equipment to a base station to at least improve detection performance comprising:
a receiver within the user equipment capable of receiving, from the base station and over a broadcast channel, position information of an allocated random access channel resource, the position information including frequency information and timing information; and
a transmitter within the user equipment capable of transmitting, using the position information, and on a random access channel, a preamble sequence to the base station to access a cellular network, wherein the preamble sequence has the form of a single cyclic prefix (CP) concatenated to a front-end of an N-time repetition, where N is an integer greater than 1, of the product of a Zadoff-Chu Constant Amplitude Zero Auto Correlation (CAZAC) based sequence with an exponential sequence.
2. The system of claim 1 , wherein the position information is expressed by one or more of subcarrier offset, number of sub-carriers, timing offset, and/or a number of symbols.
3. The system of claim 1 , wherein the position information was transmitted via a broadcast channel.
4. The system of claim 1 , wherein the timing information is expressed by one or more of a timing offset and/or the number of symbols.
5. The system of claim 1 , wherein multiplying exponential sequences in a time domain is equal to performing a circular shift in a frequency domain.
6. The system of claim 1 , wherein the user equipment detects repetitive patterns.
7. The system of claim 1 , wherein the user equipment transmits uplink data to the base station through an allocated resource.
8. The system of claim 1 , wherein the transmitter further transmits a message for a request for scheduling to the base station.
9. The system of claim 1 , wherein the preamble sequence is accompanied by a pilot.
10. The system of claim 1 , wherein the transmitter also transmits a wideband pilot.
11. A base station that receives a preamble sequence from user equipment to at least improve detection performance comprising:
a transmitter that transmits, to the user equipment over a broadcast channel, position information of an allocated random access channel resource, the position information including frequency information and timing information; and
a receiver that receives a preamble sequence, the preamble sequence having been transmitted using the position information, and on a random access channel, to access a cellular network, wherein the preamble sequence has the form of a single cyclic prefix (CP) concatenated to a front-end of an N-time repetition, where N is an integer greater than 1, of the product of a Zadoff-Chu Constant Amplitude Zero Auto Correlation (CAZAC) based sequence with an exponential sequence.
12. The base station of claim 11 , wherein the position information is expressed by one or more of subcarrier offset, number of sub-carriers, timing offset, and/or a number of symbols.
13. The base station of claim 11 , wherein the timing information is expressed by one or more of a timing offset and/or the number of symbols.
14. The base station of claim 11 , wherein multiplying exponential sequences in a time domain is equal to performing a circular shift in a frequency domain.
15. The base station of claim 11 , wherein the user equipment detects repetitive patterns.
16. The base station of claim 11 , wherein the receiver receives a message for a request for scheduling.
17. The base station of claim 11 , wherein the preamble sequence is accompanied by a pilot.
18. The base station of claim 11 , wherein the preamble sequence is accompanied by a wideband pilot.
19. The base station of claim 11 , wherein the user equipment is configured to try random access through an allocated RACH resource by using the position information from the network.
20. The base station of claim 11 , wherein the user equipment is configured to try random access through an allocated RACH resource by using the position information from the network.
21. A method to transmit a preamble sequence from user equipment to a base station to at least improve detection performance comprising:
receiving, at the user equipment, from the base station over a broadcast channel, position information of an allocated random access channel resource, the position information including frequency information and timing information; and
transmitting, from the user equipment, using the position information, and on a random access channel, a preamble sequence to the base station to access a cellular network, wherein the preamble sequence has the form of a single cyclic prefix (CP) concatenated to a front-end of an N-time repetition, where N is an integer greater than 1, of the product of a Zadoff-Chu Constant Amplitude Zero Auto Correlation (CAZAC) based sequence with an exponential sequence.
22. The method of claim 21 , wherein the position information is expressed by one or more of subcarrier offset, number of sub-carriers, timing offset, and/or a number of symbols.
23. The method of claim 21 , wherein the position information was transmitted via a broadcast channel.
24. The method of claim 21 , wherein the timing information is expressed by one or more of a timing offset and/or the number of symbols.
25. The method of claim 21 , wherein multiplying exponential sequences in a time domain is equal to performing a circular shift in a frequency domain.
26. The method of claim 21 , wherein the user equipment detects repetitive patterns.
27. The method of claim 21 , further comprising transmitting uplink data to the base station through an allocated resource.
28. The method of claim 21 , further comprising transmitting a message for a request for scheduling to the base station.
29. The method of claim 21 , wherein the preamble sequence is accompanied by a pilot.
30. The method of claim 21 , further comprising transmitting a wideband pilot.
31. The method of claim 21 , further comprising attempting random access through an allocated RACH resource by using the position information from the network.
32. A non-transitory computer readable information storage media having stored thereon instructions, that when executed by one or more processors, cause to be performed a method to transmit a preamble sequence from user equipment to a base station to at least improve detection performance comprising:
receiving, at the user equipment, from the base station over a broadcast channel, position information of an allocated random access channel resource, the position information including frequency information and timing information; and
transmitting, from the user equipment, using the position information, and on a random access channel, a preamble sequence to the base station to access a cellular network, wherein the preamble sequence has the form of a single cyclic prefix (CP) concatenated to a front-end of an N-time repetition, where N is an integer greater than 1, of the product of a Zadoff-Chu Constant Amplitude Zero Auto Correlation (CAZAC) based sequence with an exponential sequence.
33. The non-transitory computer readable information storage media of claim 32 , wherein the position information is expressed by one or more of subcarrier offset, number of sub-carriers, timing offset, and/or a number of symbols.
34. The non-transitory computer readable information storage media of claim 32 , wherein the position information was transmitted via a broadcast channel.
35. The non-transitory computer readable information storage media of claim 32 , wherein the timing information is expressed by one or more of a timing offset and/or the number of symbols.
36. The non-transitory computer readable information storage media of claim 32 , wherein multiplying exponential sequences in a time domain is equal to performing a circular shift in a frequency domain.
37. The non-transitory computer readable information storage media of claim 32 , wherein the user equipment detects repetitive patterns.
38. The non-transitory computer readable information storage media of claim 32 , further comprising transmitting uplink data to the base station through an allocated resource.
39. The non-transitory computer readable information storage media of claim 32 , further comprising transmitting a message for a request for scheduling to the base station.
40. The non-transitory computer readable information storage media of claim 32 , wherein the preamble sequence is accompanied by a pilot.
41. The non-transitory computer readable information storage media of claim 32 , further comprising transmitting a wideband pilot.
42. The non-transitory computer readable information storage media of claim 32 , further comprising attempting random access through an allocated RACH resource by using the position information from the network.