Segmented transfers in mobile networks using coordinated multipoint

Patent metadata

Field	Value
Publication number	US-10270495-B2
Application number	US-201515125834-A
Country	US
Kind code	B2
Filing date	Feb 25, 2015
Priority date	Mar 24, 2014
Publication date	Apr 23, 2019
Grant date	Apr 23, 2019

Abstract

Various methods, devices and nodes in a wireless system are disclosed for efficiently transferring files (both uploads and downloads) between a wireless device and a network node in a Coordinated Multipoint (CoMP) environment. According to a broad aspect, an upload request message is sent from the wireless device to the cooperating nodes in the CoMP set for uploading the data file to the network node, and based on an upload grant from at least one cooperating node, a plurality of piece messages are sent to the cooperating nodes for transmission to the network node, each piece message containing a particular piece of the data file. In yet another broad aspect, both a coordinating node and non-coordinating nodes in the CoMP set are configured to receive piece messages. Non-coordinating nodes that receive piece messages send acknowledgement messages to the coordinating node indicating which pieces have been received. If at least one piece has not been received at the coordinating node but received at a non-coordinating node, the coordinating node instructs the non-coordinating node to forward the at least one piece received to the network node.

First claim

What is claimed is:

1. A method for a wireless device for uploading a data file as a plurality of pieces to a network node via a coordinated multipoint (CoMP) set of cooperating nodes in a wireless network, wherein the CoMP set includes a coordinating node and at least one non-coordinating node, the method comprising:
sending an upload request message to the cooperating nodes in the CoMP set for uploading the data file as the plurality of pieces to the network node, wherein the upload request message comprises an identifier of the network node;
based on an upload grant from at least one cooperating node in the CoMP set, sending a plurality of piece messages to the cooperating nodes in the CoMP set for transmission to the network node, wherein each piece message of the plurality of piece messages comprises a particular piece of the data file; and
receiving, from the coordinating node in the CoMP set, an acknowledgement message indicating whether or not one or more of the plurality of pieces of the data file have been received, wherein the acknowledgement message includes a plurality of indicators, wherein each indicator of the plurality of indicators corresponds to one of the plurality of pieces of the data file, and wherein each indicator of the plurality of indicators is set based on whether or not the corresponding piece of the plurality of pieces of the data file has been received at the network node.

2. The method of claim 1 , further comprising based on the upload grant from the at least one cooperating node in the CoMP set, sending a descriptor message to the at least one cooperating node in the CoMP set for transmission to the network node, wherein the descriptor message comprises an index of the plurality of pieces of the data file.

3. The method of claim 1 , wherein the network node is one of the coordinating node in the CoMP set, a core network node in a core network, and an Internet Protocol (IP) network node in an IP network.

4. The method of claim 1 , wherein the at least one cooperating node comprises the coordinating node, and wherein the method further comprises receiving from the coordinating node, a grant message indicative of the upload grant.

5. The method of claim 1 , further comprising sending a completion message to the cooperating nodes in the CoMP set for transmission to the network node, wherein the completion message indicates that the plurality of pieces of the data file has been sent.

6. The method of claim 1 , wherein the upload request message and each piece message of the plurality of piece messages are Transport Control Protocol (TCP) messages.

7. The method of claim 1 , wherein the upload request message and each piece message of the plurality of piece messages are Multi-Path Transport Control Protocol (MPTCP) messages, and wherein each MPTCP message of the MPTCP messages includes a TCP subflow identifier.

8. The method of claim 1 , wherein the acknowledgement message is one of a physical layer acknowledgement message and a Transport Control Protocol (TCP) acknowledgement message.

9. The method of claim 8 , wherein the physical layer acknowledgement message is one of a positive acknowledgement (ACK) message and a negative acknowledgement (NACK) message.

10. The method of claim 1 , wherein each piece of the plurality of pieces of the data file corresponds to one or more transport blocks, wherein the acknowledgement message comprises a set of physical layer acknowledgement messages, and wherein each physical layer acknowledgement message of the set of physical layer acknowledgement messages indicates whether or not a particular transport block of the one or more transport blocks has been received at a cooperating node of the cooperating nodes in the wireless network.

11. The method of claim 10 , wherein each transport block of the one or more transport blocks corresponds to one or more code words, and wherein each physical layer acknowledgement message of the set of physical layer acknowledgement messages indicates whether or not a particular code word of the one or more code words has been received at the cooperating node of the cooperating nodes in the wireless network.

12. The method of claim 1 , further comprising based on the acknowledgement message received, re-sending one or more piece messages of the plurality of piece messages to the cooperating nodes in the CoMP set for transmission to the network node, wherein the one or more piece messages of the plurality of piece messages comprises the one or more of the plurality of pieces of the data file that have not been received.

13. A wireless device for uploading a data file as a plurality of pieces to a network node via a coordinated multipoint (CoMP) set of cooperating nodes in a wireless network, wherein the CoMP set includes a coordinating node and at least one non-coordinating node, wherein the wireless device comprises circuitry, and wherein the circuitry comprises instructions which, when executed, cause the wireless device to:
send an upload request message to the cooperating nodes in the CoMP set for uploading the data file as the plurality of pieces to the network node, wherein the upload request message comprises an identifier of the network node;
based on an upload grant from at least one cooperating node in the CoMP set, send a plurality of piece messages to the cooperating nodes in the CoMP set for transmission to the network node, wherein each piece message of the plurality of piece messages comprises a particular piece of the data file; and
receive, from the coordinating node in the CoMP set, an acknowledgement message indicating whether or not one or more of the plurality of pieces of the data file have been received, wherein the acknowledgement message includes a plurality of indicators, wherein each indicator of the plurality of indicators corresponds to one of the plurality of pieces of the data file, and wherein each indicator of the plurality of indicators is set based on whether or not the corresponding piece of the plurality of pieces of the data file has been received at the network node.

14. The wireless device of claim 13 , wherein based on the upload grant from the at least one cooperating node in the CoMP set, the instructions further cause the wireless device to send a descriptor message to the at least one cooperating node in the CoMP set for transmission to the network node, and wherein the descriptor message comprises an index of the plurality of pieces of the data file.

15. The wireless device of claim 13 , wherein the network node is one of the coordinating node in the CoMP set, a core network node in a core network, and an Internet Protocol (IP) network node in an IP network.

16. The wireless device of claim 13 , wherein the at least one cooperating node comprises the coordinating node, and wherein the instructions further cause the wireless device to receive, from the coordinating node, a grant message indicative of the upload grant.

17. The wireless device of claim 13 , wherein the instructions further cause the wireless device to send a completion message to the cooperating nodes in the CoMP set for transmission to the network node, and wherein the completion message indicates that the plurality of pieces of the data file has been sent.

18. The wireless device of claim 13 , wherein the upload request message and each piece message of the plurality of piece messages are Transport Control Protocol (TCP) messages.

19. The wireless device of claim 13 , wherein the upload request message and each piece message of the plurality of p

Assignees

• Ericsson Telefon Ab L M

Inventors

• Casselman Ronald
• Wainer Gabriel
• Moallemi Mohammad
• Tavanpour Misagh
• Mikhail Jan
• Boudreau Gary

Classifications

• H04L67/108

  characterised by resources being split in blocks or fragments · CPC title

• H04B7/024 Primary

  Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems · CPC title

• H04L45/24

  Multipath · CPC title

• H04L5/0055

  Physical resource allocation for ACK/NACK (for physical mapping arrangements in ARQ protocols H04L1/1861) · CPC title

• H04L5/0032

  Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation · CPC title