Uplink control signaling in cellular telecommunication system
A method, apparatus, and computer program for controlling allocation of control message fields in uplink transmission in a cellular telecommunication system are presented. Uplink control message fields are allocated to the resources of a physical uplink shared traffic channel according to an uplink transmission scheme selected for a user terminal. The control message fields are allocated so that transmission performance of the control messages is optimized for the selected uplink transmission scheme.
1. A method performed by a base station for receiving a multi-antenna transmission scheme signal, the method comprising:
receiving, from a user terminal, first coded control information via a first transmission from a first antenna and concurrently receiving second coded control information via a second transmission from a second antenna that is different than the first antenna, wherein the first transmission and the second transmission use single carrier frequency division multiple access (SC-FDMA);
despreading the first coded control information with a first spreading code and despreading the second coded control information with a second spreading code to generate control information, wherein the first spreading code is different than the second spreading code, and wherein the control information is acknowledgement (ACK)/negative acknowledgement (NACK) information or rank indicator information.
2. The method of claim 1 , wherein the first coded control information is descrambled by a first scrambling code and the second coded control information is descrambled by a second scrambling code.
3. The method of claim 1 , wherein the first coded control information is punctured and the second coded control information is punctured.
4. The method of claim 1 , wherein the first coded control information and the second coded control information are received via a physical uplink shared channel (PUSCH).
5. The method of claim 4 , further comprising receiving data via the PUSCH.
6. The method of claim 5 , wherein at least a portion of the first coded control information and at least a portion of the second coded control information is received in a transmit diversity transmission concurrently with at least a portion of the data.
7. A base station configured to receive a multi-antenna transmission scheme signal, the base station comprising:
a receiver configured to:
receive, from a user terminal, first coded control information via a first transmission from a first antenna and concurrently receiving second coded control information via a second transmission from a second antenna that is different than the first antenna, wherein the first transmission and the second transmission use single carrier frequency division multiple access (SC-FDMA); and
a processor configured to despread the first coded control information with a first spreading code and despread the second coded control information with a second spreading code to generate control information, wherein the first spreading code is different than the second spreading code, and wherein the control information is acknowledgement (ACK)/negative acknowledgement (NACK) information or rank indicator information.
8. The base station of claim 7 , wherein the first coded control information is descrambled by a first scrambling code and the second coded control information is descrambled by a second scrambling code.
9. The base station of claim 7 , wherein the first coded control information is punctured and the second coded control information is punctured.
10. The base station of claim 7 , wherein the receiver is further configured to receive the first coded control information and the second coded control information via a physical uplink shared channel (PUSCH).
11. The base station of claim 10 , wherein the receiver is further configured to receive data via the PUSCH.
12. The base station of claim 11 , wherein at least a portion of the first coded control information and at least a portion of the second coded control information is received in a transmit diversity transmission concurrently with at least a portion of the data.
13. A non-transitory computer readable storage medium including instructions thereon that, when executed by at least one processor, cause an apparatus, that is configured to receive a multi-antenna transmission scheme signal, to:
receive, from a user terminal, first coded control information via a first transmission from a first antenna spatial stream and concurrently receiving second coded control information via a second transmission from a second antenna that is different than the first antenna, wherein the first transmission and the second transmission use single carrier frequency division multiple access (SC-FDMA); and
despread the first coded control information with a first spreading code and despread the second coded control information with a second spreading code to generate control information, wherein the first spreading code is different than the second spreading code, and wherein the control information is acknowledgement (ACK)/negative acknowledgement (NACK) information or rank indicator information.
14. The non-transitory computer readable storage medium of claim 13 , wherein the first coded control information is descrambled by a first scrambling code and the second coded control information is descrambled by a second scrambling code.
15. The non-transitory computer readable storage medium of claim 13 , wherein the first coded control information is punctured and the second coded control information is punctured.
16. The non-transitory computer readable storage medium of claim 13 , wherein the instructions, when executed by the at least one processor, further cause the apparatus to:
receive the first coded control information and the second coded control information via a physical uplink shared channel (PUSCH).
17. The non-transitory computer readable storage medium of claim 16 , wherein the instructions, when executed by the at least one processor, further cause the apparatus to:
receive data via the PUSCH.
18. The non-transitory computer readable storage medium of claim 17 , wherein at least a portion of the first coded control information and at least a portion of the second coded control information is received in a transmit diversity transmission concurrently with at least a portion of the data.