Method and apparatus for local data caching

Patent metadata

Field	Value
Publication number	US-9923683-B2
Application number	US-201214009917-A
Country	US
Kind code	B2
Filing date	Apr 6, 2012
Priority date	Apr 7, 2011
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

Methods and apparatus for local data caching are disclosed. Data may be stored in a local data storage connected to a base station or network nodes. The data flow may be split. The base station may coordinate with a cooperating base station for split-data transmission of locally cached data. Data may be split at different layers.

First claim

What is claimed is:

1. A method, implemented by a flow control entity in a base station, of data flow splitting with local data caching, the method comprising:
receiving feedback regarding delivery statistics of split-data transmission from at least one cooperating base station;
determining site transmission rates of split-data for the base station and the at least one cooperating base station, respectively, based on the received feedback;
providing, to each of the at least one cooperating base station and the base station, a respective fetching pattern for fetching cached data from at least one local data storage and a respective target transmission rate for split-data transmission, by the base station and the at least one cooperating base station, of the cached data to a wireless transmit/receive unit (WTRU), wherein the fetching patterns and target transmission rates are determined based on the determined site transmission rates;
receiving additional feedback from the at least one cooperating base station and adjusting the fetching patterns and target transmission rates based on the additional feedback; and
providing the adjusted fetching patterns and target transmission rates to the base station and cooperating base station.

2. The method of claim 1 , further comprising:
mapping a radio bearer service to the at least one local data storage; and
transmitting an address of the radio bearer service to the at least one local data storage.

3. The method of claim 1 , wherein the flow control entity is an Inter-Working Flow Control (IWFC) entity.

4. The method of claim 3 , wherein the IWFC entity is above a radio resource control (RRC) entity.

5. A flow control entity in a base station configured to split-data flow with local data caching, the flow control entity comprising:
the flow control entity configured to receive feedback regarding delivery statistics of split-data transmission from at least one cooperating base station;
the flow control entity configured to determine site transmission rates of split-data for the base station and the at least one cooperating base station, respectively, based on the received feedback;
the flow control entity configured to provide, to each of the at least one cooperating base station and the base station, a respective fetching pattern for fetching cached data from at least one local data storage and a respective target transmission rate for split-data transmission, by the base station and the at least one cooperating base station, of the cached data to a wireless transmit/receive unit (WTRU), wherein the fetching patterns and target transmission rates are determined based on the determined site transmission rates;
the flow control entity configured to receive additional feedback from the at least one cooperating base station and adjusting the fetching patterns and target transmission rates based on the additional feedback; and
the flow control entity configured to provide the adjusted fetching patterns and target transmission rates to the base station and cooperating base station.

6. The flow control entity of claim 5 , further configured to:
map a radio bearer service to the at least one local data storage; and
provide an address of the radio bearer service to the at least one local data storage.

7. The flow control entity of claim 5 configured as an Inter-Working Flow Control (IWFC) entity.

8. The flow control entity of claim 7 , wherein the IWFC entity is above a radio resource control (RRC) entity.

9. The method of claim 1 , wherein the split-data transmitted by the base station and the at least one cooperating base station is combined at the WTRU.

10. The method of claim 1 , wherein the at least one local data storage is located at the base station.

11. The method of claim 1 , wherein the at least one local data storage is located at the cooperating base station.

12. The method of claim 1 , wherein the at least one local data storage is located in a core network (CN).

13. The flow control entity of claim 5 , wherein the split-data transmitted by the base station and the at least one cooperating base station is combined at the WTRU.

14. The flow control entity of claim 5 , wherein the at least one local data storage is located at the base station.

15. The flow control entity of claim 5 , wherein the at least one local data storage is located at the cooperating base station.

16. The flow control entity of claim 5 , wherein the at least one local data storage is located in a core network (CN).

Assignees

• Wang Carl
• Pragada Ravikumar V
• Pietraski Philip J
• Kaur Samian
• Interdigital Patent Holdings Inc

Inventors

• Wang Carl
• Pragada Ravikumar V
• Pietraski Philip J
• Kaur Samian

Classifications

• H04L5/0035 Primary

  Resource allocation in a cooperative multipoint environment · CPC title

• H04L67/288

  Distributed intermediate devices, i.e. intermediate devices for interaction with other intermediate devices on the same level · CPC title

• G06F17/30902

  Physics · mapped topic

• H04W72/12

  Wireless traffic scheduling · CPC title

• H04W28/14

  using intermediate storage · CPC title