Apparatus, and associated method, for communicating streaming video in a radio communication system

• US 6,757,273 B1
• Filed: 02/07/2000
• Issued: 06/29/2004
• Est. Priority Date: 02/07/2000
• Status: Expired due to Term

• Current Assignee: Conversant Wireless Licensing S.à.r.l. (f/k/a Core Wireless Licensing S.a.r.l.) (MOSAID Technologies Inc. (f/k/a Conversant Intellectual Property Management))
• Original Assignee: Nokia Corporation
• Inventors: Hsu, Liangchi, Fraccaroli, Federico
• Primary Examiner(s): Hsu, Alpus H.
• Assistant Examiner(s): Molinari, Michael J
• Application Number:
  US09/498,683
• Time in Patent Office: 1,604 Days
• Field of Search: 370/230.1, 370/231, 370/236, 370/349, 370/395.21, 370/395.71, 370/395.7, 370/328, 370/329, 370/338, 370/412, 370/410, 370/468, 370/229, 370/230, 370/235, 455/453
• US Class Current: 370/349
• CPC Class Codes: H04L 47/10 Flow control; Congestion control
• CPC Class Codes: H04L 47/2416 Real-time traffic
• CPC Class Codes: H04L 47/263 Rate modification at the source after receiving feedback
• CPC Class Codes: H04L 47/30 in combination with information about buffer occupancy at either end or at transit nodes
• CPC Class Codes: H04L 47/70 Admission control; Resource allocation
• CPC Class Codes: H04L 47/765 triggered by the end-points
• CPC Class Codes: H04L 47/781 Centralised allocation of resources
• CPC Class Codes: H04L 47/801 Real time traffic
• CPC Class Codes: H04L 47/824 Applicable to portable or mobile terminals
• CPC Class Codes: H04L 47/826 Involving periods of time
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 65/752 adapting media to network capabilities
• 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: H04N 21/23406 involving management of server-side video buffer
• CPC Class Codes: H04N 21/2385 Channel allocation H04N21/266 takes precedence; Bandwidth allocation H04N21/24 takes precedence ; allocation of channels according to the instantaneous demands of the users in time-division multiplex systems H04J3/1682; admission control, resource allocation in open networks H04L12/5692; arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896; negotiating bandwidth in wireless networks H04W28/16
• 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 21/6377 directed to server one-way streaming services wherein the source is controlled by the destination H04L65/613
• CPC Class Codes: H04N 21/658 Transmission by the client directed to the server
• CPC Class Codes: H04N 21/6582 : Data stored in the client, e.g. viewing habits, hardware capabilities, credit card number arrangements where receivers interact with the broadcast H04H20/38
• CPC Class Codes: H04N 7/18 : Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
• CPC Class Codes: H04W 28/02 : Traffic management, e.g. flow control or congestion control
• CPC Class Codes: H04W 28/10 : Flow control between communication endpoints
• CPC Class Codes: H04W 28/12 : using signalling between network elements
• CPC Class Codes: H04W 28/14 : using intermediate storage
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/27 : between access points
• CPC Class Codes: H04W 8/04 : Registration at HLR or HSS [Home Subscriber Server]

Abstract

Apparatus, and an associated method, for facilitating bandwidth smoothing to effectuate a communication service including the communication of streaming video or other multimedia data component in a radio communication system, such as a cellular communication system. A mobile station includes a buffer at which to buffer the streaming multimedia data component when received at the mobile station. An indication of the size of the buffer is utilized in the selection of the bandwidth smoothing.

Claims

1. In a radio communication system having network infrastructure and having a mobile station at least operable to receive at least one streaming multimedia data component by way of a radio link upon which communication resources are selectably allocated by the network infrastructure, the streaming multimedia data component generated by a streaming multimedia data component source, an improvement of apparatus for the mobile station for facilitating bandwidth-smoothing allocations of bandwidth pursuant to a bandwidth plan to communicate the streaming multimedia data component upon the radio link, said apparatus comprising:

a buffer of a selected buffer size located at the mobile station, said buffer for buffering the streaming multimedia data component when received at the mobile station; and

a buffer message generator coupled to receive indications of the selected buffer size of said buffer, said buffer message generator selectably for generating a buffer message for transmission upon the radio link, the buffer message indicating the selected buffer size of said buffer, the buffer message forming part of a request by the mobile station to receive the streaming multimedia data component, the bandwidth plan defining bounds within which the allocations of the bandwidth pursuant to the bandwidth plan are made, the bounds separated by amounts dependent upon the selected buffer size of said buffer, said buffer message generator further selectably for generating a buffer-full message during communication of the streaming multimedia data when the streaming multimedia data component buffered at said buffer exceeds an upper threshold, and said buffer message generator further selectably for generating a buffer-empty message during communication of the streaming multimedia data when the streaming multimedia data component buffered at said buffer falls beneath a selected lower threshold, the buffer-full message and buffer-empty message used to alter the allocations of bandwidth when time required to alter the allocations of the bandwidth is less than a time period during which the allocation of the bandwidth is to be effectuated responsive thereto and the allocations of bandwidth, when altered, selectably causing a service renegotiation at the network infrastructure to reallocate the communication resources upon the radio link.

2. The apparatus of claim 1 wherein said buffer comprises a playback buffer from which the streaming multimedia data component buffered thereat is retrieved to play back the streaming multimedia data component.

3. The apparatus of claim 1 wherein the selected size of said buffer is one of the first size, a second size, and at least a third size and wherein the buffer-size indication message generated by said buffer message generator comprises a value associated with the one of the first size, the second size, and the at least third size.

4. The apparatus of claim 1 wherein the streaming multimedia data component source is identified by an identifier and wherein the request for the streaming multimedia data component further includes an indication of the identifier of the streaming multimedia data component source, the indication of the identifier forming an address by which to route the request together with the buffer-size indication message.

5. In the radio communication system of claim 1 wherein the streaming multimedia data component source is coupled to form a portion of the network infrastructure a further improvement of apparatus for the network infrastructure for facilitating the bandwidth smoothing allocations of bandwidth to communicate the streaming multimedia data component upon the radio link, said apparatus comprising:

a bandwidth smoothing scheme selector coupled to receive indications of the selected buffer size indicated by the buffer message, forming part of the request by the mobile station and generated by said buffer message generator, and to receive indicia of the streaming multimedia data component generated by the streaming multimedia data component source, said bandwidth smoothing scheme selector for defining the bounds within which the allocations of the bandwidth are made and for selecting the allocation of bandwidth for communication pursuant to the bandwidth plan upon the radio link of the streaming multimedia data component responsive to values both of the indications of the selected buffer size and of the indicia of the streaming multimedia data component.

6. The apparatus of claim 5 wherein the indicia of the streaming multimedia data component to which said bandwidth smoothing scheme selector is coupled to receive comprises an indication of a number of bits of which the streaming multimedia data component is formed.

7. The apparatus of claim 5 further comprising a radio resource manager coupled to said bandwidth smoothing scheme selector, said radio resource manager selectably for negotiating for a change in bandwidth allocation upon the radio link if selection by said bandwidth smoothing scheme selector of the allocation of bandwidth necessitates a change in the bandwidth allocation of the radio link.

8. The apparatus of claim 7 wherein negotiations performed by said radio resource manager require at least a minimum negotiation period, the at least the minimum negotiation period related to the time required to alter the allocations of the bandwidth, and wherein said radio resource manager is further coupled to receive indications of the minimum negotiation period, operation of said resource manager further operable responsive to values of the minimum negotiation period.

9. The apparatus of claim 8 wherein said resource manager negotiates for the change in the bandwidth allocation if the selection by said bandwidth smoothing scheme selector necessitates the change in the bandwidth allocation and the indications of the negotiation period are within a selected boundary.

10. The apparatus of claim 7 wherein the network infrastructure includes a radio base station and wherein said bandwidth smoothing scheme selector is located at the streaming multimedia data component source.

11. The apparatus of claim 5 wherein said bandwidth smoothing scheme selector is located at the streaming multimedia data component source.

12. In a radio communication system having network infrastructure and a mobile station, the mobile station at least operable to receive a streaming multimedia data component by way of a radio link upon which communication resources are selectably allocated by the network infrastructure, the streaming multimedia data component generated by a streaming multimedia data component source, an improvement of apparatus for the network infrastructure for facilitating bandwidth-smoothing allocations of bandwidth to communicate the streaming multimedia data component upon the radio link, said apparatus comprising:

a bandwidth-smoothing scheme selector coupled to receive indications of a selected buffer size indicated by a buffer-size indication message as part of a request for the streaming multimedia data component, to receive indicia of the streaming multimedia data component generated by the streaming multimedia data component source, and to receive indications of a time required to implement allocations of bandwidth, said bandwidth smoothing scheme selector for defining the bounds within which the allocations of bandwidth are made and contained in the request for selecting the allocations of bandwidth for communication upon the radio link of the streaming multimedia data component responsive to values of the indications of the selected buffer size and of the indicia of the streaming multimedia data component and initiating implementation of the allocation when the time required to implement the allocations is less than a time period during which the allocations are to be effectuated; and

a radio resource manager coupled to said bandwidth-smoothing scheme selector, said radio resource manager selectably for negotiating for a change in the communication resources upon the radio link responsive to the allocation of the bandwidth selected by said bandwidth-smoothing scheme selector.

13. In a method for communicating in a radio communication system having a mobile station at least operable to receive at least one streaming video by way of a radio link upon which communication resources are selectably allocated by the network infrastructure, the streaming multimedia data component generated by a streaming multimedia data component source, an improvement of a method for facilitating bandwidth to communicate the streaming video upon the radio link, said method comprising:

indicating a buffer-size of a buffer located at the mobile station at which to buffer streaming multimedia data component once received at the mobile station;

generating a buffer indication message at the mobile station, the buffer indication message for transmission upon the radio link, the buffer indication message of a value responsive to the buffer size of the buffer indicated during said operation of indicating;

formatting the buffer indication message as part of a request by the mobile station to receive the streaming multimedia data;

sending the request to the network infrastructure;

allocating bandwidth-smoothed bandwidth pursuant to a bandwidth plan by which to communicate the streaming multimedia data, the bandwidth-smoothed bandwidth defined within bounds, the bounds separated by amounts dependent upon the selected buffer size indicated in the buffer-size indication message;

selectably generating a buffer-full message during communication of the streaming multimedia data when the streaming multimedia data when the streaming multimedia data buffered at the buffer exceeds an upper threshold;

selectably generating a buffer-empty message during communication of the streaming multimedia data when the streaming multimedia data buffered at the buffer falls beneath a lower threshold;

altering the bandwidth-smoothed bandwidth when time required to alter the allocations of the bandwidth is less than a time period during which the allocation of the bandwidth is to be effectuated responsive to any of the buffer-full and buffer-empty messages, respectively; and

selectably renegotiating communication resources upon the radio link responsive to any of the buffer-full and buffer-empty messages generated during said operations of selectably generating.