Burst size signaling and partition rule

• US 8,634,355 B2
• Filed: 03/02/2010
• Issued: 01/21/2014
• Est. Priority Date: 03/03/2009
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Harel, Tom, Lomnitz, Yuval, Xu, Changlong
• Primary Examiner(s): Sheikh, Ayaz
• Assistant Examiner(s): HALIYUR, VENKATESH N
• Application Number:
  US12/715,920
• Publication Number:
  US 20100226329A1
• Time in Patent Office: 1,421 Days
• Field of Search: 370318-561
• US Class Current: 370/329
• CPC Class Codes: H04B 7/0478 Special codebook structures directed to feedback optimisation
• CPC Class Codes: H04W 68/02 Arrangements for increasing efficiency of notification or paging channel
• CPC Class Codes: H04W 68/08 using multi-step notification by increasing the notification area
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B

Abstract

A wireless network includes base stations and mobile stations. The base stations determine burst sizes and partitions, and signal this information to the mobile stations.

Claims

1. A method executable by a base station, the method comprising:

populating at the base station a download (DL) MAP information element (IE) with information indicative of a number of logical resource units (LRUs) allocated for a download burst;

populating at the base station the DL MAP IE with a first index to a first table, the first table comprising a modulation order M of the download burst as a function of the number LRUs allocated for the download burst and as a function of spectral efficiency of the download burst, the information indicative of the number of LRUs allocated for the download burst and the first index to the first table forming a second index to a burst size table, the burst size table comprising a burst size and a segmentation rule for the download burst as a function of the second index;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size; and

transmitting the DL MAP IL to the mobile station.

2. The method of claim 1, wherein the first index is five bits in length.

3. The method of claim 1, further comprising transmitting to a mobile station at least one burst of data in the download burst.

4. The method of claim 3, further comprising transmitting multiple forward error correction (FEC) blocks when the burst size of the download burst is greater than 600 bytes.

5. A method executable by a base station, the method comprising:

populating at the base station an upload (UL) MAP information element (IE) with information indicative of a number of logical resource units (LRUs) allocated for an upload burst;

populating at the base station the UL MAP IE with a first index to a first table, the first table comprising a modulation order M of the upload burst as a function of the number LRUs allocated for the upload burst and as a function of spectral efficiency of the upload burst, the information indicative of the number of LRUs allocated for the upload burst and the first index to the first table forming a second index to a burst size table, the burst size table comprising a burst size and a segmentation rule for the upload burst as a function of the second index;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size; and

transmitting the UL MAP IE to the mobile station.

6. The method of claim 5, wherein the first index is five bits in length.

7. The method of claim 5, further comprising receiving from the mobile station at least one burst of data in the upload burst.

8. A method executable by a mobile station, the method comprising:

receiving a download (DL) MAP information element (IE) transmitted to the mobile station from a base station or a relay station;

reading at the mobile station from the DL MAP IE information indicative of a number of logical resource units (LRUs) allocated for a download burst;

reading at the mobile station from the DL MAP IE a first index to a first table, the first table comprising a modulation order M of the download burst as a function of the number LRUs allocated for the download burst and as a function of spectral efficiency of the download burst; and

determining at the mobile station a second index based on the information indicative of the number of LRUs allocated for the download burst and the first index to the first table, the second index forming an index to a burst size table, the burst size table comprising a burst size and a segmentation rule for the download burst as a function of the second index;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size.

9. The method of claim 8, wherein the first index is five bits in length.

10. The method of claim 8, further comprising receiving at least one burst of data in the download burst.

11. The method of claim 10, further comprising receiving multiple forward error correction (FEC) blocks when the burst size of the download burst is greater than 600 bytes.

12. A method executable by a mobile station, the method comprising:

receiving at the mobile station an upload (UL) MAP information element (IE) from a base station or a relay station;

reading at the mobile station from the UL MAP IE information indicative of a number of logical resource units (LRUs) allocated for an upload burst;

reading at the mobile station from the DL MAP IE a first index to a first table, the first table comprising a modulation order M of the upload burst as a function of the number LRUs allocated for the upload burst and as a function of spectral efficiency of the upload burst; and

determining at the mobile station a second index based on the information indicative of the number of LRUs allocated for the upload burst and the first index to the first table, the second index forming an index to a burst size table, the burst size table comprising a burst size and a segmentation rule for the upload burst as a function of the second index;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size.

13. The method of claim 12, wherein the first index is five bits in length.

14. The method of claim 12, further comprising transmitting at least one burst of data in the upload burst.

15. The method of claim 14, further comprising transmitting multiple forward error correction (FEC) blocks when the burst size of the upload burst is greater than 600 bytes.

16. A non-transitory computer-readable medium having instructions stored thereon that when accessed result in a mobile station performing:

determining at the mobile station a first index as idx=I_MinimalSize+I_SizeOffset in which I_MinimalSize is derived from a number of logical resource units (LRUs) allocated to a burst, and I_SizeOffset is a second index retrieved from an MAP information element (IE) in an IEEE 802.16 compliant system, the second index being an index to a modulation order table that comprises a modulation order M of the burst as a function of the number LRUs allocated for the burst and as a function of spectral efficiency of the burst; and

determining at the mobile station a burst size by indexing into a burst size table using the first index, the burst size table comprising a burst size and a segmentation rule for the burst as a function of the first index, and burst sizes in the burst size table being independent of the number of LRUs allocated for the burst;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the first index corresponding to each burst size larger than the predetermined size.

17. The non-transitory computer-readable medium of claim 16, wherein the MAP IE comprises a download (DL) MAP IE, and the burst size corresponds to a size of a download burst.

18. The non-transitory computer-readable medium of claim 16, wherein the MAP IE comprises an upload (UL) MAP IE, and the burst size corresponds to a size of an upload burst.

19. A mobile station, comprising:

at least one antenna;

a physical layer of the mobile station coupled to the at least one antenna to receive MAP information elements (IEs) from a base station, the physical layer being to determine a burst size using information retrieved from the MAP IEs, the retrieved information being indicative of a number of logical resource units (LRUs) allocated for the burst and an index to a first table, the first table comprising a modulation order M for the burst as a function of the number LRUs allocated for the burst and as a function of spectral efficiency of the burst, the burst size being determined based on a second index to a burst size table, the burst size table comprising a burst size and a segmentation rule for the burst as a function of the second index the second index being derived from the information indicative of the number of LRUs allocated for the burst and the first index, burst sizes in the burst size table being are independent of the number of LRUs allocated for the burst;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size.

20. The mobile station of claim 19, wherein the physical layer is further operable to include multiple forward error correction (FEC) blocks of equal size for bursts greater than 600 bytes.

21. A mobile station, comprising:

at least one antenna;

a physical layer of the mobile station coupled to the at least one antenna, the physical layer supporting a set of burst sizes that are within a range of minimal spectral efficiency to maximal spectral efficiency for all allocation sizes, the physical layer being operable to determine a burst size from a burst size table based on a first index formed from information retrieved from a MAP information element (IE), the retrieved formation being indicative of a number of logical resource units (LRUs) allocated for the burst and a second index to a second table, the second table comprising a modulation order M for the burst as a function of the number LRUs allocated for the burst and as a function of a spectral efficiency of the burst within the range of the minimal spectral efficiency to the maximal spectral efficiency, the burst size table comprising a burst size and a segmentation rule for the burst as a function of the first index, burst sizes in the burst size table being independent of the allocation sizes, and the first index comprising the retrieved information being indicative of a number of logical resource units (LRUs) allocated for the burst and the second index;

wherein burst sizes larger than a predetermined size are segmented into multiple forward error correction (FEC) blocks having a same size according to the segmentation rule for the second index corresponding to each burst size larger than the predetermined size.

22. The mobile station of claim 21, wherein the physical layer is further operable to provide adaptive Hybrid Automatic Repeat reQuest (HARQ) in which original transmissions and re-transmissions have common burst sizes and different allocation sizes.

23. The mobile station of claim 21, further comprising a media access control layer to determine the burst sizes.