MAPPING OF DISTRIBUTED RESOURCE BLOCK INDICES TO PHYSICAL RESOURCE BLOCKS

• US 20090175230A1
• Filed: 12/31/2008
• Published: 07/09/2009
• Est. Priority Date: 01/09/2008
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Nortel Networks Limited (Nortel Networks Corporation)
• Inventors: PARANCHYCH, David Walter, CALLARD, Aaron James, MA, Jianglei
• Granted Patent: US 8,179,849 B2
• Time in Patent Office: Days
• US Class Current: 370/329
• CPC Class Codes: H03M 13/271 Row-column interleaver with permutations, e.g. block interleaving with inter-row, inter-column, intra-row or intra-column permutations
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 5/0007 the frequencies being orthogonal, e.g. OFDM(A), DMT
• CPC Class Codes: H04L 5/0041 Frequency-non-contiguous
• CPC Class Codes: H04L 5/0044 allocation of payload
• CPC Class Codes: H04W 72/20 Control channels or signalling for resource management

Abstract

An apparatus for communication using a wireless communication network includes an interleaver and a transceiver. The interleaver co-exists with a localized transmission arrangement if the localized transmission arrangement is present and interleaves data packets for a distributed transmission arrangement by mapping a set of logical indices to a set of physical resource blocks. The set of logical indices include sequential logical indices that are separated by a maximum spacing within the set. The transceiver is in electrical communication with the interleaver. The transceiver is operable to transmit and receive data packets through the wireless communication network.

Claims

1. An apparatus for communication using a wireless communication network, the apparatus comprising:

an interleaver, the interleaver;

co-existing with a localized transmission arrangement if the localized transmission arrangement is present; and

interleaving assigned resources for a distributed transmission arrangement by mapping a set of logical indices to a set of physical resource blocks, the set of logical indices including sequential logical indices being separated by a maximum spacing within the set; and

a transceiver in electrical communication with the interleaver, the transceiver operable to transmit and receive data packets through the wireless communication network.

2. The apparatus of claim 1, wherein the set of physical resource blocks includes a set of Orthogonal Frequency-Division Multiplexing subcarriers.

3. The apparatus of claim 1, wherein the network operates using Long Term Evolution.

4. The apparatus of claim 1, wherein the mapping comprises:

creating an intermediate indexing matrix of logical elements of at least one physical resource block; and

permutating rows and columns of the intermediate indexing matrix.

5. The apparatus of claim 4, wherein the at least one physical resource block is divided into a predetermined amount of sub-portions, and wherein the intermediate indexing links the predetermined amount of sub-portions together using a predefined pattern.

6. The apparatus of claim 5, wherein the predetermined amount of sub-portions is one of two and three.

7. The apparatus of claim 5, wherein the mapping comprises a mirrored mapping in which each logical index, K, in physical resource block L is linked to a logical index, Nd-K, in an intermediate indexing matrix, where Nd is the predetermined amount of sub-portions.

8. The apparatus of claim 5, wherein the pattern links sub-portions separated by a fixed spacing.

9. The apparatus of claim 4, wherein the mapping comprises an identity mapping in which each logical element of the at least one physical resource block is mapped directly to a corresponding element of the intermediate indexing matrix in a order of occurrence.

10. The apparatus of claim 1, further comprising:

a deinterleaver electrically coupled to the transceiver, the deinterleaver operable to deinterleave interleaved data packets received from the wireless communication network.

11. A method of mapping assigned resources for a distributed transmission arrangement in a wireless communication network, the method comprising:

mapping a set of logical indices to a set of physical resource blocks, the set of logical indices including sequential logical indices being separated by a maximum spacing within the set; and

the mapping co-existing with a localized transmission arrangement if the localized transmission arrangement is present.

12. The method of claim 11, wherein the set of physical resource blocks includes a set of Orthogonal Frequency-Division Multiplexing subcarriers.

13. The method of claim 11, wherein the network operates using Long Term Evolution.

14. The method of claim 11, wherein the mapping comprises:

creating an intermediate indexing matrix of logical elements of at least one physical resource block; and

permutating rows and columns of the intermediate indexing matrix.

15. The method of claim 14, wherein the at least one physical resource block is divided into a predetermined amount of sub-portions, and wherein the intermediate indexing links the predetermined amount of sub-portions together using a predefined pattern.

16. The method of claim 15, wherein the predetermined amount of sub-portions is one of two and three.

17. The method of claim 15, wherein the mapping comprises a mirrored mapping in which each logical index, K, in physical resource block L is linked to a logical index, Nd-K, in an intermediate indexing matrix, where Nd is the predetermined amount of sub-portions.

18. A system for mapping assigned resources for distributed transmission through a Long Term Evolution communication network, the system comprising:

a transmitting apparatus including;

an interleaver, the interleaver;

co-existing with a localized transmission arrangement if the localized transmission arrangement is present; and

interleaving assigned resources for a distributed transmission arrangement by mapping a set of logical indices to a set of physical resource blocks, the set of logical indices including sequential logical indices being separated by a maximum spacing within the set; and

a transceiver electrically connected to the interleaver, the transceiver operable to transmit data packets through the Long Term Evolution communication network; and

a receiving apparatus in communication with the transmitting apparatus, the receiving apparatus including;

a transceiver operable to receive data packets from the Long Term Evolution communication network; and

a deinterleaver electrically connected to the transceiver, the deinterleaver deinterleaving interleaved data packets received from the Long Term Evolution network.

19. The system of claim 18, wherein the set of physical resource blocks includes a set of Orthogonal Frequency-Division Multiplexing subcarriers.

20. The system of claim 18, wherein the mapping comprises:

creating an intermediate indexing matrix of logical elements of at least one physical resource block; and

permutating rows and columns of the intermediate indexing matrix.