Deployment of LTE UL system for arbitrary system bandwidths via PUCCH configuration

• US 20090290549A1
• Filed: 05/20/2009
• Published: 11/26/2009
• Est. Priority Date: 05/21/2008
• Status: Active Grant

• Current Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Original Assignee: Nokia Solutions and Networks US LLC (Nokia Corporation)
• Inventors: ROESSEL, Sabine, TIIROLA, Esa T., PAJUKOSKI, Kari P., HOOLI, Kari
• Granted Patent: US 8,406,182 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0016 Time-frequency-code
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0066 Requirements on out-of-channel emissions
• CPC Class Codes: H04W 72/04 Wireless resource allocation

Abstract

In accordance with an example embodiment of the present invention, there is at least a method, apparatus, and computer program product to perform an over-provisioning of a radio resource including a periodic channel quality indicator resource in a predetermined way, and an allocating of the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.

Claims

1. A method comprising:

over-provisioning a radio resource comprising a periodic channel quality indicator resource in a predetermined way; and

allocating the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.

2. The method according to claim 1, where the radio resource comprises at least one of a physical uplink control channel resource, a physical uplink shared channel resource, and a physical random access channel resource.

3. The method according to claim 1, where allocating comprises a pre-determined at least one periodic channel quality indicator resource is one of left unused or blanked.

4. The method according to claim 3, where the radio resource comprises at least one of a physical uplink shared channel resource and a physical random access channel resource, and where the at least one of the physical uplink shared channel resource and the physical random access channel resource is allocated where the pre-determined at least one periodic channel quality indicator resource is one of left unused or blanked.

5. The method according to claim 1, where the allocating comprises at least one of controlling and selecting a transmission power to be used on the pre-determined portion of the over-provisioned radio resource in order to control the out-of-band emissions in a pre-defined way.

6. The method according to claim 1 where the periodic channel quality indicator resource comprises at least one of a physical uplink control channel format 2, 2a, and 2b, where the over-provisioning comprises selecting parameters N_RB⁽²⁾ and N_cs⁽¹⁾ such that N_RB⁽²⁾N_sc^RB+(N_sc^RB−

N_cs⁽¹⁾−

2)>

>

(a number of simultaneous resources allocated to the at least one of the physical uplink control channel format 2, 2a, and 2b), and where the number of simultaneous resources allocated to the at least one of the physical uplink control channel format 2, 2a, and 2b is equal to n_PUCCH⁽²⁾, where n_PUCCH⁽²⁾ is a resource index for resources used for the physical uplink control channel formats 2, 2a, and 2b

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers,

where N_RB⁽²⁾ is a bandwidth reserved for the physical uplink control channel formats 2, 2a, and 2b, expressed in multiples of N_sc^RB,

where N_cs⁽¹⁾ is a number of cyclic shifts used for at least one of a physical uplink control channel format 1, 1a, and 1b in a mixed resource block, and

where n_PUCCH⁽²⁾ is a resource index for resources used for physical uplink control channel formats 2, 2a, and 2b.

7. The method according to claim 1, where allocating the radio resource comprises allocating at least one physical uplink control channel format 2, 2a, and 2b resource, where the allocating is defined by k×

2N_sc^RB, where kε

[0,1,2, . . . ], and where unused resources are set to be n_PUCCH⁽²⁾ ε

[0,1,2, . . . , (k×

2N_sc^RB−

1)],

where n_PUCCH⁽²⁾ is a resource index for resources used for physical uplink control channel formats 2, 2a, and 2b, and

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers.

8. The method according to claim 1, where the periodic channel quality indicator resource comprises at least one of physical uplink control channel formats 2, 2a, and 2b;

and further comprising allocating the at least one of the physical uplink control channel formats 2, 2a, and 2b from a last available physical uplink control channel formats 2, 2a, and 2b resource as defined by (N_RB⁽²⁾N_sc^RB+(N_sc^RB−

N_cs⁽¹⁾−

2)),

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers,

where N_RB⁽²⁾ is a bandwidth reserved for the physical uplink control channel formats 2, 2a, and 2b, expressed in multiples of N_sc^RB, and

where N_cs⁽¹⁾ is a number of cyclic shifts used for at least one of a physical uplink control channel format 1, 1a, and 1b in a mixed resource block.

9. The method according to claim 1, where the radio resource comprises a sounding reference signal resource, and where allocating comprises the sounding reference signal resource is configured to overlap with the over-provisioned periodic channel quality indicator resource.

10. The method according to claim 1, where system bandwidth is equal to one of 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHZ or 20 MHz.

11. The method according to claim 1 where the system is a long term evolution system.

12. The method according to claim 1, where the radio resource is an uplink radio resource.

13. A computer readable medium encoded with a computer program executable by a processor to perform the method of claim 1.

14. An apparatus, comprising:

a processor configured to over-provision a radio resource comprising a periodic channel quality indicator resource in a predetermined way; and

the processor configured to allocate the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.

15. The apparatus according to claim 14, where the radio resource comprises at least one of a physical uplink control channel resource, a physical uplink shared channel resource, and a physical random access channel resource.

16. The apparatus according to claim 14, where allocating comprises the processor is configured to allocate a pre-determined at least one periodic channel quality indicator resource so that the at least one periodic channel quality indicator resource is one of left unused or blanked.

17. The apparatus according to claim 16, where the radio resource comprises at least one of a physical uplink shared channel resource and a physical random access channel resource, and where the processor is configured to allocate the at least one of the physical uplink shared channel resource and the physical random access channel resource to where the pre-determined at least one periodic channel quality indicator resource is one of left unused or blanked.

18. The apparatus according to claim 14, where the allocating comprises the processor is configured to at least one of control and select a transmission power to be used on the pre-determined portion of the over-provisioned radio resource in order to control the out-of-band emissions in a pre-defined way.

19. The apparatus according to claim 14, where the periodic channel quality indicator resource comprises at least one of a physical uplink control channel format 2, 2a, and 2b, where the over-provisioning comprises the processor is configured to select parameters N_RB⁽²⁾ and N_cs⁽¹⁾ such that N_RB⁽²⁾N_sc^RB+(N_sc^RB−

N_cs⁽¹⁾−

2)>

>

(a number of simultaneous resources allocated to the at least one of the physical uplink control channel format 2, 2a, and 2b), and where the processor is further configured to allocate the number of simultaneous resources to the at least one of the physical uplink control channel format 2, 2a, and 2b is equal to n_PUCCH⁽²⁾, where n_PUCCH⁽²⁾ is a resource index for resources used for the physical uplink control channel formats 2, 2a, and 2b

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers,

where N_RB⁽²⁾ is a bandwidth reserved for the physical uplink control channel formats 2, 2a, and 2b, expressed in multiples of N_sc^RB,

where N_cs⁽¹⁾ is a number of cyclic shifts used for at least one of a physical uplink control channel format 1, 1a, and 1b in a mixed resource block, and

where n_PUCCH⁽²⁾ is a resource index for resources used for physical uplink control channel formats 2, 2a, and 2b.

20. The apparatus according to claim 14, where allocating the radio resource comprises the processor is configured to allocate at least one physical uplink control channel format 2, 2a, and 2b resource, where the allocating is defined by k×

2N_sc^RB, where kε

[0,1,2, . . . ], and where unused resources are set to be n_PUCCH⁽²⁾ ε

[0,1,2, . . . , (k×

2N_sc^RB−

1)],

where n_PUCCH⁽²⁾ is a resource index for resources used for physical uplink control channel formats 2, 2a, and 2b, and

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers.

21. The apparatus according to claim 14, where the periodic channel quality indicator resource comprises at least one of physical uplink control channel formats 2, 2a, and 2b;

and further comprising allocating the at least one of the physical uplink control channel formats 2, 2a, and 2b from a last available physical uplink control channel formats 2, 2a, and 2b resource as defined by (N_RB⁽²⁾N_sc^RB+(N_sc^RB−

N_sc⁽¹⁾−

2)),

where N_sc^RB equals a resource block size in a frequency domain, expressed as a number of subcarriers,

where N_RB⁽²⁾ is a bandwidth reserved for the physical uplink control channel formats 2, 2a, and 2b, expressed in multiples of N_sc^RB, and

where N_cs⁽¹⁾ is a number of cyclic shifts used for at least one of a physical uplink control channel format 1, 1a, and 1b in a mixed resource block.

22. The apparatus according to claim 14, where the radio resource comprises a sounding reference signal resource, and where allocating comprises the processor is configured to allocate the sounding reference signal resource to overlap with the over-provisioned periodic channel quality indicator resource.

23. The apparatus according to claim 14, where system bandwidth is equal to one of 1.4 MHz, 3 MHz, 5 MHz, 10 MHz, 15 MHZ or 20 MHz.

24. The apparatus according to claim 14, comprising a transmitter configured to transmit at least one of a physical uplink shared channel, a physical random access channel, and a sounding reference signal using the over-provisioned radio resource corresponding to the periodic channel quality indicator resource.

25. The apparatus of claim 24 embodied in a user equipment.

26. An apparatus, comprising:

means for over-provisioning a radio resource comprising a periodic channel quality indicator resource in a predetermined way; and

means for allocating the radio resource in such a manner that at least one of an effective system bandwidth is reduced and out-of-band emissions related to the allocated radio resource are taken into account.

27. The apparatus according to claim 26, where the radio resource comprises at least one of a physical uplink control channel resource, a physical uplink shared channel resource, and a physical random access channel resource.