TERMINAL-AIDED BACKHAUL COMPRESSION

• US 20160135082A1
• Filed: 08/21/2014
• Published: 05/12/2016
• Est. Priority Date: 08/21/2014
• Status: Active Grant

• Current Assignee: Guangdong OPPO Mobile Telecommunications Corporation Limited
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Khayrallah, Ali S.
• Granted Patent: US 10,560,868 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: H04L 67/5651 Reducing the amount or size of exchanged application data
• CPC Class Codes: H04L 69/04 Protocols for data compression, e.g. ROHC
• 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 4/18 Information format or content conversion, e.g. adaptation by the network of the transmitted or received information for the purpose of wireless delivery to users or terminals

Abstract

A delegate wireless terminal can receive and store messages sent to it by a receiving network node. The wireless terminal can identify a message label based on a mapping for the received message. A transmitting network node can transmit a message label to a receiving network node across a backhaul link. The receiving network node can transmit a message label to the wireless terminal. The wireless terminal can identify a stored message that corresponds to the received message label, and send the corresponding message to the receiving network node. The receiving network node can then transmit the message to its intended destination.

Claims

8. A user equipment in communication with a network node, the user equipment comprising:

a memory;

a transceiver; and

a processor for executing instructions stored in the memory, user equipment configured to;

receive a message label from the network node;

identify, based on the received message label, a message stored in a memory of the user equipment;

transmit the message to an intended destination.

9. The user equipment of claim 8, wherein the user equipment is further configured to:

prior to receiving the message label from the network node;

receive the message from the network node;

determine a message label for the message based on a predetermined mapping; and

store the message in the memory with the determined message label.

10. The user equipment of claim 9, wherein identifying, based on the received message label, a message stored in a memory of the user equipment comprises:

comparing the received message label received from the network node to the determined message label determined at the user equipment and stored in the memory of the user equipment;

determining that the received message label is the same as the determined message label; and

wherein transmitting the message to an intended destination comprises transmitting the message stored in the memory of the user equipment associated with the determined message label to the intended destination.

11. The method of claim 9, wherein receiving the message from the network node comprising eavesdropping on transmissions between the network node and another user equipment.

12. A method at a network node of a wireless communications network, the method comprising:

receiving a message label from a transmitting network node across a backhaul link;

determining that the message label does not coincide with a message stored at the network node;

transmitting the message label to a designated user equipment;

receiving a message associated with the message label from the designated user equipment; and

transmitting the message to an intended user equipment.

13. The method of claim 12, further comprising:

receiving an indication that the designated user equipment has left the wireless communications network;

transmitting an indication that the designated user equipment has left the wireless communications network across the backhaul link to the transmitting network node.

14. The method of claim 13, further comprising receiving an indication from the transmitting network node of a new designated user equipment, wherein the network node is in wireless communication with the new designated user equipment.

15. The method of claim 14, further comprising:

receiving a message from the transmitting network node across the backhaul link; and

wirelessly transmitting the message to the new designated user equipment.

16. The method of claim 12, wherein receiving a message label from a transmitting network node across a backhaul link comprises receiving a first message label, and

wherein transmitting the message label to a designated user equipment comprises transmitting the first message label to a first designated user equipment;

and

wherein the method further comprises;

receiving a second message label from the transmitting network node via the backhaul link, the second message label different from the first message label; and

transmitting the second message label to a second user equipment.

17. The method of claim 12, further comprising:

prior to receiving the message label from the transmitting network node via the backhaul link;

receiving a message from the transmitting network node via the backhaul link, the message intended for a target user equipment in wireless communication with the network node; and

transmitting the message to the target user equipment and to the designated user equipment.

18. A network node of a wireless communications network, the network node comprising:

a memory;

a transceiver; and

a processor for executing instructions stored on the memory;

the network node configured to;

receive a message label from a transmitting network node across a backhaul link;

determine that the message label does not coincide with a message stored at the network node;

transmit the message label to a designated user equipment;

receive a message associated with the message label from the designated user equipment; and

transmit the message to an intended user equipment.

1. A method performed in a user equipment in wireless communication with a network node, the method comprising:

receiving a message label from the network node;

identifying, based on the received message label, a message stored in a memory of the user equipment;

transmitting the message to an intended destination.

2. The method of claim 1, wherein the intended destination is another user equipment, and transmitting the message to a destination comprises wirelessly transmitting the message to a network node.

3. The method of claim 1, wherein the intended destination is another user equipment, and transmitting the message to a destination comprises wirelessly transmitting the message directly to the other user equipment.

4. The method of claim 1, wherein the intended destination is the user equipment itself, and transmitting the message to the destination comprises retrieving the message from the memory.

5. The method of claim 1, further comprising:

prior to receiving the message label from the network node;

receiving the message from the network node;

determining a message label for the message based on a predetermined mapping; and

storing the message in the memory with the determined message label.

6. The method of claim 5, wherein identifying, based on the received message label, a message stored in a memory of the user equipment comprises:

comparing the received message label received from the network node to the determined message label determined at the user equipment and stored in the memory of the user equipment;

determining that the received message label is the same as the determined message label; and

wherein transmitting the message to an intended destination comprises transmitting the message stored in the memory of the user equipment associated with the determined message label to the intended destination.

7. The method of claim 5, wherein receiving the message from the network node comprising eavesdropping on transmissions between the network node and another user equipment.

19. The network node of claim 18, further configured to:

receive an indication that the designated user equipment has left the wireless communications network;

transmit an indication that the designated user equipment has left the wireless communications network across the backhaul link to the transmitting network node.

20. The network node of claim 19, further configured to receive an indication from the transmitting network node of a new designated user equipment, wherein the network node is in wireless communication with the new designated user equipment.

21. The network node of claim 20, further configured to:

receive a message from the transmitting network node across the backhaul link; and

wirelessly transmit the message to the new designated user equipment.

20-1. The network node of claim 18, wherein receiving a message label from a transmitting network node across a backhaul link comprises receiving a first message label, and

wherein transmitting the message label to a designated user equipment comprises transmitting the first message label to a first designated user equipment;

and

wherein the network node is further configured to;

receive a second message label from the transmitting network node via the backhaul link, the second message label different from the first message label; and

transmit the second message label to a second user equipment.

21-1. The network node of claim 18, further configured to:

prior to receiving the message label from the transmitting network node via the backhaul link;

receive a message from the transmitting network node via the backhaul link, the message intended for a target user equipment in wireless communication with the network node; and

transmit the message to the target user equipment and to the designated user equipment.

22. A method performed at a network node of a wireless communications network, the method comprising:

receiving a message;

determining a message label for the message;

determining that the determined message label is the same as a stored message label that is stored in a memory of the transmitting network node;

comparing the received message to a stored message associated with the stored message label;

if the received message is the same as the stored message, then transmitting the determined message label to a second network node via a backhaul link; and

if the received message is different than the stored message, then transmitting the received message to the second network node via the backhaul link, and

storing the received message with the determined message label.

23. The method of claim 22, further comprising:

receiving an indication from the second base station that a first designated user equipment is no longer connected to the second base station;

transmitting an identification of a new designated user equipment to the second network node.

24. The method of claim 23, further comprising erasing one or more messages and message labels stored in the memory of the network node that coincide with messages and message labels stored in the first designated user equipment.

25. A network node of a wireless communications network, the network node comprising:

a memory;

a transceiver; and

a processor for executing instructions stored on the memory;

the network node configured to;

receive a message;

determine a message label for the message;

determine that the determined message label is the same as a stored message label that is stored in a memory of the transmitting network node;

compare the received message to a stored message associated with the stored message label;

if the received message is the same as the stored message, then transmit the determined message label to a second network node via a backhaul link; and

if the received message is different than the stored message, then transmit the received message to the second network node via the backhaul link, and

store the received message with the determined message label.

26. The network node of claim 25, further configured to:

receive an indication from the second base station that a first designated user equipment is no longer connected to the second base station;

transmit an identification of a new designated user equipment to the second network node.

27. The method of claim 26, further configured to erase one or more messages and message labels stored in the memory of the network node that coincide with messages and message labels stored in the first designated user equipment.