Reliable Multicast/Broadcast for P2P Communications

• US 20150312953A1
• Filed: 11/07/2013
• Published: 10/29/2015
• Est. Priority Date: 11/07/2012
• Status: Abandoned Application

• Current Assignee: IOT Holdings, Inc. (InterDigital, Inc.)
• Original Assignee: InterDigital Patent Holdings, Inc. (InterDigital, Inc.)
• Inventors: Wang, Chonggang, Li, Qing, Ding, Zongrui, Li, Hongkun, Russell, Paul L. Jr.
• Application Number:
  US14/441,436
• Publication Number:
  US 20150312953A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 1/00 Arrangements for detecting or preventing errors in the information received correcting synchronisation H04L7/00
• CPC Class Codes: H04L 1/16 in which the return channel carries supervisory signals, e.g. repetition request signals
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 12/18 for broadcast or conference , e.g. multicast
• CPC Class Codes: H04L 2001/0093 Point-to-multipoint
• CPC Class Codes: H04W 4/203 for converged personal network application service interworking, e.g. OMA converged personal network services [CPNS]
• CPC Class Codes: H04W 4/80 Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 76/14 Direct-mode setup
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

Methods and apparatus may be used to provide reliable multicast or broadcast for peer-to-peer (P2P) communications. A wireless transmit/receive unit (WTRU) may receive a medium access control (MAC) data frame. The MAC data frame may indicate a flexible acknowledgement (ACK) type (e.g., a subset of peers, a single peer, location based, context based, and/or packet type based). The MAC data frame may indicate an ACK sequence. The ACK sequence may indicate an ACK transmission sequence among peers. The WTRU may determine whether to send an ACK message based on the flexible ACK type and/or the ACK sequence. The WTRU may receive an ACK message from a peer. The WTRU may send the ACK message when it is determined that the ACK message should be sent.

Claims

1-34. -34. (canceled)

35. A method for peer to peer communication, the method comprising:

receiving, by a wireless transmit/receive unit (WTRU), a medium access control (MAC) data frame that indicates a flexible acknowledgement (ACK) type;

determining whether to send an ACK message based on the flexible ACK type; and

sending the ACK message on a condition that it is determined to send the ACK message.

36. The method of claim 35, wherein the flexible ACK type indicates that the ACK message is to be sent from a subset of peers.

37. The method of claim 36, further comprising determining that the WTRU is in the subset of peers.

38. The method of claim 36, wherein the subset of peers consists of a single peer.

39. The method of claim 35, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer within a proximity to a location.

40. The method of claim 39, further comprising determining that the WTRU is within the proximity to the location.

41. The method of claim 35, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer associated with a context.

42. The method of claim 41, wherein the context is associated with at least one of link quality, residual energy, application or service profile, application or service category, user profile, device profile, or a mobility state.

43. The method of claim 41, further comprising determining that the WTRU is associated with the context.

45. The method of claim 35, wherein the MAC data frame is a multicast MAC data frame.

43-1. The method of claim 35, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer based on at least one of a packet type, a packet priority, or a packet quality of information.

46. A wireless transmit/receive unit (WTRU) comprising:

a processor configured at least in part to;

receive a medium access control (MAC) data frame that indicates a flexible acknowledgement (ACK) type;

determine whether to send an ACK message based on the flexible ACK type; and

send the ACK message on a condition that it is determined to send the ACK message.

47. The WTRU of claim 46, wherein the flexible ACK type indicates that the ACK message is to be sent from a subset of peers.

48. The WTRU of claim 47, wherein the processor is further configured to determine that the WTRU is in the subset of peers.

49. The WTRU of claim 47, wherein the subset of peers consists of a single peer.

50. The WTRU of claim 46, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer within a proximity to a location.

51. The WTRU of claim 50, wherein the processor is further configured to determine that the WTRU is within the proximity to the location.

52. The WTRU of claim 46, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer associated with a context.

53. The WTRU of claim 52, wherein the context is associated with at least one of link quality, residual energy, application or service profile, application or service category, user profile, device profile, or a mobility state.

54. The WTRU of claim 52, wherein the processor is further configured to determine that the WTRU is associated with the context.

55. The WTRU of claim 46, wherein the flexible ACK type indicates that the ACK message is to be sent from a peer based on at least one of a packet type, a packet priority, or a packet quality of information.

56. The WTRU of claim 55, wherein the MAC data frame is a multicast MAC data frame.