Delivery of information over a communication channel

• US 10,034,198 B2
• Filed: 09/29/2014
• Issued: 07/24/2018
• Est. Priority Date: 05/13/2004
• Status: Expired due to Fees

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Garudadri, Harinath, Sagetong, Phoom, Nanda, Sanjiv, Lundby, Stein Arne
• Primary Examiner(s): Nguyen, Anh Ngoc
• Application Number:
  US14/499,954
• Publication Number:
  US 20150016427A1
• Time in Patent Office: 1,394 Days
• Field of Search: None
• CPC Class Codes: H04L 47/36 by determining packet size, e.g. maximum transfer unit [MTU]
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/75 Media network packet handling
• CPC Class Codes: H04L 65/764 at the destination reformatting of additional data in video clients H04N21/4355
• CPC Class Codes: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• CPC Class Codes: H04L 69/161 Implementation details of TCP/IP or UDP/IP stack architecture; Specification of modified or new header fields
• CPC Class Codes: H04L 69/166 IP fragmentation; TCP segmentation
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04L 69/321 Interlayer communication protocols or service data unit [SDU] definitions; Interfaces between layers
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 19/102 characterised by the element, parameter or selection affected or controlled by the adaptive coding
• CPC Class Codes: H04N 19/115 Selection of the code volume for a coding unit prior to coding
• CPC Class Codes: H04N 19/124 Quantisation
• CPC Class Codes: H04N 19/152 by measuring the fullness of the transmission buffer
• CPC Class Codes: H04N 19/164 Feedback from the receiver or from the transmission channel
• CPC Class Codes: H04N 19/174 the region being a slice, e.g. a line of blocks or a group of blocks
• CPC Class Codes: H04N 19/61 in combination with predictive coding
• CPC Class Codes: H04N 21/2381 Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] network transmission of MPEG streams over ATM H04L12/5601
• CPC Class Codes: H04N 21/41407 embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/44004 : involving video buffer management, e.g. video decoder buffer or video display buffer
• CPC Class Codes: H04N 21/4788 : communicating with other users, e.g. chatting arrangements for providing for computer conferences, e.g. chat rooms, to substation in data switching networks H04L12/1813; distributed application using peer-to-peer [P2P] networks H04L67/104
• CPC Class Codes: H04N 21/6131 : involving transmission via a mobile phone network wireless downlink channel access H04W74/006
• CPC Class Codes: H04N 21/6181 : involving transmission via a mobile phone network arrangements for providing broadcast or conference services to substation in data switching networks in combination with wireless systems H04L12/189; wireless uplink channel access H04W74/004
• CPC Class Codes: H04N 21/6437 : Real-time Transport Protocol [RTP]
• CPC Class Codes: H04N 21/64707 : for transferring content from a first network to a second network, e.g. between IP and wireless
• CPC Class Codes: H04W 28/06 : Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 28/065 : using assembly or disassembly of packets
• 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 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/1263 : Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 80/00 : Wireless network protocols or protocol adaptations to wireless operation
• CPC Class Codes: H04W 84/04 : Large scale networks; Deep hierarchical networks
• CPC Class Codes: H04W 88/02 : Terminal devices
• CPC Class Codes: H04W 88/181 : Transcoding devices; Rate adaptation devices

Abstract

Methods and apparatus are described for transmitting information units over a plurality of constant bit rate communication channel. The techniques include encoding the information units, thereby creating a plurality of data packets. The encoding is constrained such that the data packet sizes match physical layer packet sizes of the communication channel. The information units may include a variable bit rate data stream, multimedia data, video data, and audio data. The communication channels include CMDA channels, WCDMA, GSM channels, GPRS channels, and EDGE channels.

Claims

1. A method of transmitting information in a wireless communication system, the method comprising:

determining available physical layer packet sizes of a plurality of available constant bit rate communication channels;

establishing constraints that are configured to restrict sizes of partitions of information units at an application-layer so as not to exceed the physical layer packet size of at least one of the available physical layer packet sizes provided by the plurality of available constant bit rate communication channels; and

encoding information units into application-layer data packets in accordance with the established constraints.

2. The method of claim 1, wherein wherein the encoding is performed by a source encoder equipped with a rate controlled module capable of generating partitions of varying size.

3. The method of claim 1, wherein the application-layer information units comprise a variable bit rate data stream.

4. The method of claim 1, wherein the application-layer information units comprise multimedia data.

5. The method of claim 1, wherein the application-layer information units comprise video data.

6. The method of claim 1, wherein the application-layer information units comprise audio data.

7. The method of claim 1, wherein the constant bit rate communication channels are CDMA channels.

8. The method of claim 7, wherein the constant bit rate communication channels include a supplemental channel.

9. The method of claim 7, wherein the constant bit rate communication channels include a dedicated control channel.

10. The method of claim 7, wherein the constant bit rate communication channels include a packet data channel.

11. The method of claim 1, wherein the constant bit rate communication channels are GSM channels.

12. The method of claim 1, wherein the constant bit rate communication channels are EDGE channels.

13. The method of claim 1, wherein the constant bit rate communication channels are GPRS channels.

14. The method of claim 1, wherein the constraints are used during encoding of the application-layer information units.

15. The method of claim 1, wherein the application-layer information units occur at a constant interval.

16. A method of transmitting information in a wireless communication system, the method comprising:

determining available physical layer packet sizes for a plurality of available constant bit rate communication channels; and

encoding an information unit into application-layer data packets, wherein individual data packet sizes of the application-layer data packets are selected so as not to exceed one of the available physical layer packet sizes of the available constant bit rate communication channels.

17. The method of claim 16, wherein encoding information comprises a source encoder equipped with a rate controlled module capable of generating partitions of varying size.

18. The method of claim 16, wherein the information unit comprises a multimedia stream.

19. The method of claim 16, wherein the information unit comprises video data.

20. The method of claim 16, wherein the information unit comprises audio data.

21. The method of claim 16, wherein the constant bit rate communication channels are CDMA channels.

22. The method of claim 21, wherein the constant bit rate communication channels include a supplemental channel.

23. The method of claim 21, wherein the constant bit rate communication channels include a dedicated control channel.

24. The method of claim 21, wherein the constant bit rate communication channels include a packet data channel.

25. The method of claim 16, wherein the constant bit rate communication channels are GSM channels.

26. The method of claim 16, wherein the constant bit rate communication channels are EDGE channels.

27. The method of claim 16, wherein the constant bit rate communication channels are GPRS channels.

28. The method of claim 16, wherein the information unit is one of a plurality of information units that occur at a constant interval.

29. A wireless communication device comprising:

a controller configured to determine a set of physical layer packet sizes from a plurality of available constant bit rate communication channels; and

an encoder configured to partition information units into application-layer data packets, wherein an individual data packet size of the application-layer data packets is selected not to exceed at least one of the physical layer packet sizes of the available constant bit rate communication channels.

30. The wireless communication device of claim 29, wherein the encoder further comprises a rate controlled module capable of generating partitions of varying size.

31. The wireless communication device of claim 29, further comprising a transmitter configured to transmit the physical layer packets.

32. The wireless communication device of claim 29, wherein the information units comprise a variable bit rate data stream.

33. The wireless communication device of claim 29, wherein the information units comprise multimedia data.

34. The wireless communication device of claim 29, wherein the information units comprise video data.

35. The wireless communication device of claim 29, wherein the plurality of constant bit rate channels are CDMA channels.

36. The wireless communication device of claim 29, wherein the plurality of constant bit rate channels are GSM channels.

37. The wireless communication device of claim 29, wherein the plurality of constant bit rate channels are GPRS channels.

38. The wireless communication device of claim 29, wherein the plurality of constant bit rate channels are EDGE channels.

39. An apparatus, comprising:

a memory; and

at least one processor coupled to the memory and configured to accept information units and partition the information units into application-layer data packets, wherein the application-layer data packets are sized so as not to exceed at least one physical layer packet size of an available constant bit rate communication channel.

40. The apparatus of claim 39, wherein the information units occur at a constant rate.

41. The apparatus of claim 39, wherein the information units comprise a variable bit rate data stream.

42. The apparatus of claim 39, wherein the information units comprise multimedia data.

43. The apparatus of claim 39, wherein the information units comprise video data.

44. The apparatus of claim 39, wherein the information units comprise audio data.

45. The apparatus of claim 39, wherein the constant bit rate communication channel is a CDMA channel.

46. The apparatus of claim 39, wherein the constant bit rate communication channel is a GSM channel.

47. The apparatus of claim 39, wherein the constant bit rate communication channel is a GPRS channel.

48. The apparatus of claim 39, wherein the constant bit rate communication channel is an EDGE channel.

49. The apparatus of claim 46, wherein the apparatus limits the aggregate of each of the application-layer data packets to a pre-selected maximum number of bits.

50. A non-transitory computer readable media containing program instructions stored thereon, which, when executed by at least one processor, cause the at least one processor to perform a method of encoding data, the method comprising partitioning information units into a plurality of application-layer data packets wherein each application-layer data packet is sized not to exceed at least one physical layer packet size from a set of physical layer packet sizes corresponding to available constant bit rate communication channels.