Transmitting data to a collaborative group

• US 8,848,593 B1
• Filed: 11/28/2012
• Issued: 09/30/2014
• Est. Priority Date: 11/28/2012
• Status: Active Grant

• Current Assignee: Sprint Spectrum LLC (Deutsche Telekom AG)
• Original Assignee: Sprint Spectrum LP (Deutsche Telekom AG)
• Inventors: Zhou, Yu, Vivanco, Daniel, Rasool, Shahzada, Chindapol, Aik
• Primary Examiner(s): Mian, Omer S
• Application Number:
  US13/688,205
• Time in Patent Office: 671 Days
• Field of Search: 370/312, 370/503, 709/231, 709/232
• US Class Current: 370/312
• CPC Class Codes: H04W 28/021 in wireless networks with changing topologies, e.g. ad-hoc networks self-organizing networks H04W84/18
• 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 4/06 Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 48/02 Access restriction performed under specific conditions

Abstract

In an embodiment, a location, a type of application, and a probability of transition to a no-coverage area are determined for each of a plurality of wireless devices in communication with an access node, and a collaborative group of wireless devices which have requested a data stream are selected. A first portion of the data stream is sent to each wireless device to synchronize the requested data stream, and at least one additional portion of the data stream is sent to each wireless device, where a number of the at least one additional portions sent to each wireless device is based on a modulation and coding scheme assigned to each wireless device. A mapping table is broadcast to the collaborative group, and the wireless devices exchange the additional portions of the data stream according to the mapping table when the collaborative group transitions to the no-coverage area.

Claims

1. A method of transmitting data to a collaborative group, comprising:

determining a location, a type of application, and a probability of transition to a no-coverage area for each of a plurality of wireless devices in communication with an access node;

selecting a collaborative group of wireless devices which have requested a data stream from among the plurality of wireless devices based on the location, the type of application, and the probability of transition to a no-coverage area;

sending to each wireless device in the collaborative group a first portion of the data stream to synchronize the requested data stream;

sending to each wireless device in the collaborative group at least one additional portion of the data stream, wherein a number of the at least one additional portions sent to each wireless device is based on a modulation and coding scheme (MCS) assigned to each wireless device in the collaborative group;

broadcasting to the wireless devices in the collaborative group a mapping table; and

exchanging among the wireless devices of the collaborative group the additional portions of the data stream according to the mapping table when the collaborative group transitions to the no-coverage area.

2. The method of claim 1, wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group.

3. The method of claim 1, wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group, and a wireless device capability of each wireless device in the collaborative group.

4. The method of claim 1, wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group, the type of application, and the probability of transition to a no-coverage area of each wireless device in the collaborative group.

5. The method of claim 1, further comprising:

adjusting the number of the at least one additional portions sent to at least one wireless device in the collaborative group based on the modulation and coding scheme (MCS) assigned to said wireless device in the collaborative group.

6. The method of claim 1, further comprising:

sending the same segment to at least two wireless devices in the collaborative group.

7. The method of claim 1, further comprising:

detecting that an additional wireless device has requested the data stream;

determining for the additional wireless device a location, a type of application, and a probability of transition to a no-coverage area; and

adding the additional wireless device to the collaborative group based on the determined location, the type of application, and the probability of transition to a no-coverage area of the additional wireless device.

8. A system for transmitting data to a collaborative group, comprising:

a processing node configured to;

determine a location, a type of application, and a probability of transition to a no-coverage area for each of a plurality of wireless devices in communication with an access node;

select a collaborative group of wireless devices which have requested a data stream from among the plurality of wireless devices based on the location, the type of application, and the probability of transition to a no-coverage area;

send to each wireless device in the collaborative group a first portion of the data stream to synchronize the requested data stream;

send to each wireless device in the collaborative group at least one additional portion of the data stream, wherein a number of the at least one additional portions sent to each wireless device is based on a modulation and coding scheme (MCS) assigned to each wireless device in the collaborative group; and

broadcast to the wireless devices in the collaborative group a mapping table;

wherein the wireless devices of the collaborative group exchange the additional portions of the data stream according to the mapping table when the collaborative group transitions to the no-coverage area.

9. The system of claim 8, wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group.

10. The system of claim 8,

wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group, and a wireless device capability of each wireless device in the collaborative group.

11. The system of claim 8,

wherein the number of the at least one additional portions sent to each wireless device is further based on a radio frequency (RF) capacity of a communication link of each wireless device in the collaborative group, the type of application, and the probability of transition to a no-coverage area of each wireless device in the collaborative group.

12. The system of claim 8, wherein the processing node is further configured to:

adjust the number of the at least one additional portions sent to at least one wireless device in the collaborative group based on the modulation and coding scheme (MCS) assigned to said wireless device in the collaborative group.

13. The system of claim 8, wherein the processing node is further configured to:

send the same segment to at least two wireless devices in the collaborative group.

14. The system of claim 8, wherein the processing node is further configured to:

detect that an additional wireless device has requested the data stream;

determine for the additional wireless device a location, a type of application, and a probability of transition to a no-coverage area; and

add the additional wireless device to the collaborative group based on the determined location, the type of application, and the probability of transition to a no-coverage area of the additional wireless device.