Packet-data network and methods for RAN-agnostic multimedia content distribution
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H04B-007/204
H04W-004/00
H04L-005/00
H04W-072/04
H04W-012/10
H04L-012/707
H04L-012/54
H04W-076/02
H04W-028/08
H04L-012/26
출원번호
US-0975591
(2010-12-22)
등록번호
US-8891438
(2014-11-18)
발명자
/ 주소
Ahmadi, Sassan
출원인 / 주소
Intel Corporation
대리인 / 주소
Schwegman Lundberg & Woessner, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
3
초록▼
Embodiments of a packet-data network (PDN) and methods for RAN-agnostic multimedia content distribution are generally described herein. In some embodiments, the PDN may dynamically distribute IP packets of a single service flow to two or more RANs associated with two or more available radio links fo
Embodiments of a packet-data network (PDN) and methods for RAN-agnostic multimedia content distribution are generally described herein. In some embodiments, the PDN may dynamically distribute IP packets of a single service flow to two or more RANs associated with two or more available radio links for subsequent transmission to a user terminal when each of the two or more available radio links meet the QoS requirements of the single service flow.
대표청구항▼
1. A packet-data network (PDN) configured for RAN-agnostic multimedia content distribution, the PDN configured to: receive QoS information for available radio links from a first set and a second set of separate radio links from two or more radio-access networks (RANs) wherein the first set of separa
1. A packet-data network (PDN) configured for RAN-agnostic multimedia content distribution, the PDN configured to: receive QoS information for available radio links from a first set and a second set of separate radio links from two or more radio-access networks (RANs) wherein the first set of separate radio links include a first and a second separate radio link for providing communication between the PDN and the two or more RANs and wherein the second set of separate radio links include a first and a second separate radio link for providing communication between the one or more RANs and the user terminal;determine which of the available radio links from the first and second set of separate radio links meet a quality-of-service (QoS) requirements for a single transmit service flow destined fbr the user terminal ; anddistribute interne-protocol (IP) packets of the single transmit service flow to two or more radio-access networks (RANs) via the first set of separate radio links for subsequent transmission tothe user terminal for combining by the user terminal using the second set of separate radio links when the first and second set of separate radio links meet OoS requirements of the single transmit service flow. 2. The PDN of claim 1, wherein the PDN includes: a service-flow processing block operating at a network layer that is configured to perform service-flow processing for a plurality of service flows destined for the user terminal, the service-flow processing including one or more of packet sequencing, packet classification, and QoS enforcement operations for IP packets of each of the plurality of transmit service flows; anda content-distribution processing block operating at the network layer to distribute the IP packets of the transmit service flow to the two or more RANs, wherein, for at least one of the plurality of service flows, the IP packets are distributed to two or more of the RANs for transmission to the user terminal over the second set of separate radio links associated with the two or more RANs. 3. The PDN of claim 1, wherein, based on the QoS information for available radio links from the first and second set of separate radio links, the PDN is further configured to distribute the IP packets of the plurality of service flows across the two or more RANs according to minimum QoS requirements of the plurality of service flows to maximize an overall data packet throughput for the plurality of service flows. 4. The PDN of claim 1, wherein when one or more of the available radio links from the first and second set of separate radio links that meet the QoS requirements of the single service flow is associated with one or more of the RANs that use a wireless local area network (WLAN) radio-access technology, the PDN is configured to maximize the use of the one or more of the available radio links from the first and second set of separate radio links that meet the QoS requirements. 5. The PUN of claim 1, wherein the user terminal is configured to receive the IP packets of the single transmit service flow over the available radio links from the first and second set of separate radio links associated with the two or more RANs and combine the received IP packets into a combined service flow corresponding to the single service flow that was distributed to the two or more RANs by the PDN. 6. The PDN of claim 5, further configured to: receive updated QoS information for the available radio links from the first and second set of separate radio links for communicating with the user terminal from each of the two or more RANs; anddynamically reallocate the IP packets of the single service flow to the available radio links from the first and second set of separate radio links based on the updated QOS information to at least maintain the QoS requirements of each of the single service flow,wherein when two or more of the available radio links from the first and second set of separate radio links each meet the QoS requirements of the single service flow, the radio links of at least two of the two or more RANs are allocated to the single service flow. 7. The PDN of claim 5, wherein the service-flow processing block is configured to evaluate the QoS information for the available radio links from the first and second set of separate radio links to determine whether at least one of the available radio links from the first and second set of separate radio links meets the QoS requirements of the single service flow. 8. The PDN of claim 1. wherein the PDN is further configured to sequence the IP packets of the single transmit service flow prior to distribution to the two or more RANs. 9. The PDN of claim 1, further comprising: a content-collection processing block to collect IP packets associated with the single service flow received from the user terminal from the two or more RANs; anda receive-side service-flow processing block configured to generate the single service flow from the collected IP packets. 10. The PDN of claim 1, wherein the two or more RANs utilize different radio-access technologies; and wherein the different radio-access technologies include two or more selected from the group of radio-access technologies consisting of an OFDMA technology in accordance with a WiMAX standard, an OFDMA technology in accordance with a 3GPP-LTE standard, a CDMA technology in accordance with a 3G standard, or a WiFi technology in accordance with a WLAN standard. 11. The PDN of claim 1, wherein the PDN is configured to distribute IP packets of higher priority and more delay-sensitive service flows to lower-delay and more reliable radio links of the first and second set of separate radio links and to distribute IP packets of lower-priority and less delay-sensitive service flows to higher-delay and less-reliable radio links of the first and second set of separate radio links; andwherein the PDN is further configured to assign more of the IP packets of a service flow to the higher capacity and more reliable radio links of the first and second set of separate radio links than to lower-capacity and less-reliable radio links of the first and second set of separate radio links. 12. A method performed by a packet-data network (PDN) for RAN-agnostic multimedia content distribution, the method comprising: receiving QoS information for available radio links from a first set and a second set of separate radio links from two or more radio-access networks (RANs), wherein the first set of separate radio links include a first and a second separate radio link for providing communication between the PDN and the two or more RANs and wherein the second set of separate radio links include a first and a second separate radio link for providing communication between the one or more RANs and the user terminal:determining which of the available radio links from the first and second set of separate radio links meet a quality-of-service (QoS) requirements for a single transmit service flow destined for the user terminal; anddistributing internet-protocol (IP) packets of the single transmit service flow to two or more of the RANs via the first set of separate radio links for subsequent transmission to the user terminal for combining by the user terminal using the second set of separate radio links when the first and second set of separate radio links meet QoS requirements of the single transmit service flow. 13. The method of claim 12 wherein based on the QoS information for radio links available from a first set of separate radio links and a second set of separate radio links associated with each of the two or more RANs, the method further includes distributing the IP packets of the single service flow across the RANs according to minimum QoS requirements of the single transmit service flow to maximize an overall data packet throughput fbr the single transmit service flow. 14. The method of claim 12wherein the method further comprises evaluating the QoS information for the radio links available from a first set of separate radio links and a second set of separate radio links to determine whether at least one of the radio links available from a first set of separate radio links and a second set of separate radio links at least meets the QoS requirements of the single service flow, andwherein the method further comprises:receiving updated QoS information for radio links available from a first set of separate radio links and a second set of separate radio links for communicating with the user terminal from each of the two or more RANs; anddynamically reallocating the IP packets of the the single service flow to the radio links available front a first set of separate radio links and a second set of separate radio links based on the updated QOS information to at least maintain the QoS requirements of the single service flow,wherein when two or more of the radio links available from a first set of separate radio links and a second set of separate radio links meet the QoS requirements of the single service flow, the radio links of at least two of the two or more RANs are allocated to the single service flow. 15. The method of claim 12, wherein distributing comprises: distributing IP packets of higher priority and more delay-sensitive service flows to lower-delay and more reliable radio links of the first and second set of separate radio links, anddistributing IP packets of less delay-sensitive service flows to higher-delay and less-reliable radio links of the first and second set of separate radio links,wherein the method further comprises assigning more of the IP packets of a service flow to the higher capacity and more reliable radio links of the first and second set of separate radio links than to lower-capacity and less-reliable radio links of the first and second set of separate radio links. 16. A multi-radio user terminal comprising: processing circuitry; anda plurality of radio interfaces, each of the plurality of radio interfaces configured to communicate with two or more radio-access networks (RANs) to receive OoS information for available radio links from a first set and a second set of separate radio links from the two or more RANs, wherein the first set of separate radio links include a first and a second separate radio link for providing communication between the PDN and the two or more RANs and wherein the second set of separate radio links include a first and a second separate radio link for providing communication between the one or more RANs and the user terminal and the processing circuitry arranged to determine which of the available radio links from the first and second set of separate radio links meet a quality-of-service (QoS) requirements for a single transmit service flow destined for the user terminal;wherein the plurality of radio interfaces are configured to receiver IP packets of the single transmit service flow to two or more radio-access networks (RANs) via the first set of separate radio links for subsequent transmission to the user terminal;wherein the processing circuitry is configured to combine using the second set of separate radio links when the first and second set of separate radio links meet QoS requirements of the single transmit service flow. 17. The multi-radio user terminal of claim 16, wherein the processing circuitry is further configured to distribute IP packets received from an application layer to the plurality of radio interfaces for transmission over available radio links from the first and second set of separate radio links to two or more RANs to a packet-data network (PDN). 18. The multi-radio user terminal of claim 17, wherein the user terminal is configured to combine the received IP packets back into the single service flow based on a sequence number and a timestamp of an IP packet's real-time transport protocol (RTP) header.
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