EXTENSIBLE SOLUTION FOR DEVICE TO DEVICE DISCOVERY MESSAGE SIZE

• US 20150327157A1
• Filed: 05/11/2015
• Published: 11/12/2015
• Est. Priority Date: 05/09/2014
• Status: Active Application

• Current Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Futurewei Technologies Incorporated (Huawei Investment & Holding Co., Ltd.)
• Inventors: Al-Shalash, Mazin
• Granted Patent: US 10,313,831 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04W 12/08 Access security
• CPC Class Codes: H04W 4/023 using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 8/005 Discovery of network devices, e.g. terminals

Abstract

A method for providing an extensible solution for discovery message size includes determining a capsule size at a layer one protocol of a user equipment operating in a cellular network. The capsule size is forwarded to a layer two protocol of the user equipment where it is adjusted to accommodate layer two overhead. The adjusted capsule size is then forwarded to a layer three protocol.

Claims

1. A method for providing an extensible solution for device to device discovery message size in a cellular network, comprising:

determining a capsule size at a layer one protocol of a user equipment operating in the cellular network;

forwarding the capsule size to a layer two protocol of the user equipment;

adjusting the capsule size to accommodate layer 2 overhead; and

forwarding the adjusted capsule size to a layer three protocol.

2. The method of claim 1, further comprising:

generating discovery information at the layer three protocol; and

placing the discovery information in one or more capsule units, each capsule unit having the adjusted capsule size.

3. The method of claim 2, further comprising:

forwarding the one or more capsule units to the layer two protocol for placement into transport channels, the discovery information being transparent to layer two protocol processing.

4. The method of claim 2, wherein the discovery information is partitioned into a plurality of fields, the discover information being placed into the one or more capsule units such that no individual field is separated into two capsule units.

5. The method of claim 4, wherein the capsule size is at least equal to a size of a largest field of the discovery information.

6. The method of claim 4, wherein stuff bits are placed into a particular capsule unit in response to one or more fields placed into the particular capsule unit not fully occupying the particular capsule unit.

7. The method of claim 1, wherein the capsule size does not include layer one overhead.

8. The method of claim 2, wherein the discovery information is generated to accommodate any one of open discovery, restricted discovery, public safety use, and non-public safety use.

9. The method of claim 1, wherein the capsule size at the layer one protocol is determined from a transport block size calculated from a modulation code scheme and resource blocks assigned to the user equipment.

10. A non-transitory computer readable medium including code for providing an extensible solution for device to device discovery message size in a cellular network, the code upon execution operable to:

determine a capsule size at a layer one protocol of a user equipment operating in the cellular network;

forward the capsule size to a layer two protocol of the user equipment;

adjust the capsule size to accommodate layer 2 overhead; and

forward the adjusted capsule size to a layer three protocol.

11. The computer readable medium of claim 10, wherein the code is further operable to:

generate discovery information at the layer three protocol; and

place the discovery information in one or more capsule units, each capsule unit having the adjusted capsule size.

12. The computer readable medium of claim 11, wherein the code is further operable to:

forward the one or more capsule units to the layer two protocol for placement into transport channels, the discovery information being transparent to layer two protocol processing.

13. The computer readable medium of claim 11, wherein the discovery information is partitioned into a plurality of fields, the discover information being placed into the one or more capsule units such that no individual field is separated into two capsule units.

14. The computer readable medium of claim 13, wherein the capsule size is at least equal to a size of a largest field of the discovery information.

15. The computer readable medium of claim 13, wherein padding bits are placed into a particular capsule unit in response to one or more fields placed into the particular capsule unit not fully occupying the adjusted capsule size for particular capsule unit.

16. The computer readable medium of claim 10, wherein the capsule size does not include layer one overhead.

17. The computer readable medium of claim 11, wherein the discovery information is generated to accommodate any one of open discovery, restricted discovery, public safety use, and non-public safety use.

18. The computer readable medium of claim 10, wherein the capsule size at the layer one protocol is determined from a transport block size calculated from a modulation code scheme and resource blocks assigned to the user equipment.