METHOD AND APPARATUS FOR PROVIDING AUTOMATIC CONTROL CHANNEL MAPPING

• US 20100260115A1
• Filed: 01/11/2008
• Published: 10/14/2010
• Est. Priority Date: 01/12/2007
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Corporation
• Inventors: Frederiksen, Frank, Kolding, Troels
• Granted Patent: US 9,520,981 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04L 5/023 Multiplexing of multicarrier modulation signals multicarrier modulation H04L27/2601
• CPC Class Codes: H04W 28/18 Negotiating wireless communication parameters
• CPC Class Codes: H04W 72/00 Local resource management

Abstract

An approach is provided for control signaling. A sub-set of channel parameters is received. Control channels are automatically mapped to physical resources of a communication network according to the received channel parameters.

Claims

1. A method comprising:

receiving a sub-set of channel parameters; and

automatically mapping control channels to physical resources of a communication network according to the received channel parameters.

2. A method according to claim 1, further comprising:

determining number of the control channels based on the channel parameters, the control channels being separately coded.

3. A method according to claim 1, wherein the physical resources include a plurality of sub-carriers.

4. A method according to claim 3, wherein a portion of the sub-carriers are allocated to a transmission symbol that includes an Orthogonal Frequency Division Multiplexing (OFDM) symbol.

5. A method according to claim 4, wherein the number of OFDM symbols is variable, the method further comprising:

determining the number of OFDM symbols based on a desired number of the control channels.

6. A method according to claim 1, further comprising:

adjusting an effective control channel code rate to obtain a desired number of the control channels.

7. A method according to claim 1, further comprising:

allocating unused sub-carrier symbols according to an interleaving scheme to equally divide the unused sub-carrier symbols over a plurality of transmission symbols.

8. A method according to claim 1, further comprising:

transmitting data over one of the control channels, the communication network having a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) architecture.

9. A method according to claim 1, wherein the channel parameters include number of transmission symbols corresponding to each of the control channels, number of sub-carriers available in each of the transmission symbols, number of transmit antennas for diversity, amount and position of reference symbols for each of the transmit antennas, uncoded size of each of the control channels, an effective control channel code rate, desired number of the control channels, an amount and position of dedicated per-cell control information, or a combination thereof.

10. An apparatus comprising:

a mapper configured to receive a sub-set of channel parameters, and to automatically map control channels to physical resources of a communication network according to the received channel parameters.

11. An apparatus according to claim 10, wherein the mapper is further configured to determine number of separately coded control channels based on the channel parameters.

12. An apparatus according to claim 10, wherein the physical resources include a plurality of sub-carriers.

27. An apparatus according to claim 10, wherein an effective control channel code rate is adjusted to obtain a desired number of the control channels.

28. An apparatus according to claim 10, further comprising:

interleaving logic configured to equally divide unused sub-carrier symbols over a plurality of transmission symbols, wherein the unused sub-carrier symbols are allocated according to an interleaving scheme.

29. An apparatus according to claim 10, further comprising:

a plurality of transmit antennas; and

a transceiver coupled to the transmit antennas and configured to transmit data over one of the control channels, the communication network having a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) architecture.

30. An apparatus according to claim 10, wherein the channel parameters include number of transmission symbols corresponding to each of the control channels, number of sub-carriers available in each of the transmission symbols, number of transmit antennas for diversity, amount and position of reference symbols for each of the transmit antennas, uncoded size of each of the control channels, an effective control channel code rate, desired number of the control channels, an amount and position of dedicated per-cell control information, or a combination thereof.

13-26. -26. (canceled)

31. An apparatus comprising:

a mapper configured to determine location of one of a plurality of coded control channels established over a multiple input multiple output (MIMO) communication system by automatically mapping the control channels to a plurality of sub-carriers designated for use within the system,

wherein the sub-carriers are allocated to a plurality of transmission symbols that include Orthogonal Frequency Division Multiplexing (OFDM) symbols.

32. An apparatus according to claim 31, wherein the number of OFDM symbols in each of the control channels is variable, the mapper being further configured to determine the number of OFDM symbols based on a desired number of the control channels.

33. An apparatus according to claim 31, wherein the number of OFDM symbols is predetermined, and the mapper is further configured to adjust an effective control channel code rate to obtain a desired number of the control channels.

34. An apparatus according to claim 31, further comprising:

a plurality of antennas; and

a transceiver configured to transmit data over one of the control channels of the MIMO communication system, the MIMO communication system having a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) architecture.