Opportunistic carrier aggregation using short range extension carriers

• US 9,955,481 B2
• Filed: 03/10/2016
• Issued: 04/24/2018
• Est. Priority Date: 04/01/2011
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Etemad, Kamran, Mucke, Christian
• Primary Examiner(s): O CONNOR, BRIAN T
• Application Number:
  US15/065,981
• Publication Number:
  US 20170006607A1
• Time in Patent Office: 775 Days
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0486 taking channel rank into account
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04B 7/0639 Using selective indices, e.g. of a codebook, e.g. pre-distortion matrix index [PMI] or for beam selection
• CPC Class Codes: H04L 43/50 Testing arrangements
• CPC Class Codes: H04L 45/70 Routing based on monitoring results
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/0032 Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 65/65 Network streaming protocols, e.g. real-time transport protocol [RTP] or real-time control protocol [RTCP]
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 16/32 Hierarchical cell structures
• CPC Class Codes: H04W 24/00 Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 4/70 Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/10 using broadcasted information
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/146 : Uplink power control
• CPC Class Codes: H04W 52/18 : TPC being performed according to specific parameters
• CPC Class Codes: H04W 72/0453 : Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/21 : in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 76/15 : Setup of multiple wireless link connections
• CPC Class Codes: H04W 76/34 : Selective release of ongoing connections
• CPC Class Codes: H04W 84/045 : using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: H04W 88/10 : adapted for operation in multiple networks, e.g. multi-mode access points
• CPC Class Codes: H04W 92/20 : between access points
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Systems and methods for providing opportunistic carrier aggregation to short range or low power extension carriers are generally disclosed herein. One embodiment includes data traffic offload techniques to offload data communicated in a Wireless Wide Area Network (WWAN) from a primary cell to a secondary cell. For example, the primary cell may be provided by a LTE/LTE-A base station operating in licensed spectrum, and the secondary cell may be provided by a low-power extension carrier operating in unlicensed spectrum using a LTE/LTE-A standard. The low-power extension carrier may be activated as needed to offload data transfers from the primary cell, in download-only, upload-only, and time-division LTE (TD-LTE) modes. Configurations involving multimode base stations, multi mode user equipment (UE), relay extension carriers, and remote radio equipment are also described herein, in conjunction with deployment of opportunistic carrier aggregation using extension carriers.

Claims

1. An apparatus of a dual-mode base station, the apparatus comprising:

a memory; and

processing circuitry in communication with the memory, the processing circuitry arranged to;

configure a primary cell (PCell) to communicate in a licensed band; and

configure a secondary cell (SCell) to communicate over a plurality of extension carriers to support carrier aggregation with the PCell;

configure a short range extension carrier to provide the SCell;

provide cross carrier scheduling of the short range extension carrier;

control activation and deactivation of the short range extension carrier;

obtain one or more network measurements; and

offload data from the PCell to the SCell in response to a determination made by the PCell based on the one or more network measurements.

2. The apparatus of claim 1, wherein the processing circuitry is further arranged to arrange the short range extension carrier to use a same network protocol as transmissions from the PCell.

3. The apparatus of claim 1, wherein the one or more network measurements comprise Radio Resource Management (RRM) or Quality of Experience (QoE) measurements at at least one of the PCell or SCell.

4. The apparatus of claim 3, wherein the processing circuitry is further arranged to configure the SCell dependent on the one or more network measurements.

5. The apparatus of claim 3, wherein the processing circuitry is further arranged to control carrier aggregation of the PCell and the SCell dependent on the one or more network measurements.

6. The apparatus of claim 1, wherein the processing circuitry is further arranged to configure the SCell to transmit in at least one of an unlicensed band or a mmWave band.

7. The apparatus of claim 1, wherein the processing circuitry is further arranged to configure the PCell to select traffic flows of a particular user equipment (UE) for offload from the PCell to the SCell, selection of whether to offload a particular traffic flow of the traffic flows of the particular UE dependent on at least one of a type of traffic of the particular traffic flow or the particular UE.

8. The apparatus of claim 7, wherein the processing circuitry is further arranged to configure the PCell to select all traffic flows of the particular UE to offload to the SCell.

9. The apparatus of claim 7, wherein the processing circuitry is further arranged to configure the PCell to retain at least one of the traffic flows of the particular UE and offload at least one of the traffic flows to the SCell.

10. The apparatus of claim 1, wherein the processing circuitry is further arranged to configure the PCell to select traffic flows of a particular user equipment (UE) for offload from the PCell to the SCell, selection of whether to offload a particular traffic flow of the traffic flows of the particular UE dependent on at least one of network conditions, the configuration of the SCell, signaling, reporting values or network and equipment specifications of the extension carrier.

11. The apparatus of claim 1, further comprising a plurality of short range extension carriers, each extension carrier:

operably coupled to an evolved Node B (eNB) that provides the PCell,

arranged to provide a SCell network arranged to communicate over a set of extension carriers to support carrier aggregation with the PCell,

comprising an eNB-supplied configuration,

arranged to use cross carrier scheduling provided by the eNB,

is activated and deactivated control by the eNB, and

transmissions are offloaded from the PCell to the SCell in response to a determination made by the PCell based on one or more measurements made at at least one of the PCell or at least one of the SCells associated with one of the plurality of short range extension carriers.

12. The apparatus of claim 11, wherein:

the eNB is a low power eNB,

at least one of the plurality of short range extension carriers is co-located with the eNB, and

the SCell of at least another of the plurality of short range extension carriers is provided by a low power extension carrier remote radio element radio node in communication with, and remote from, the eNB.

13. The apparatus of claim 11, wherein:

the eNB is a macrocell eNB and the SCell of at least one of the plurality of short range extension carriers is provided by a low power extension carrier radio node co-located with a relay node in communication with, and remote from, the eNB.

14. The apparatus of claim 1, wherein the eNB and the short range extension carrier are operably coupled to one or more transceivers arranged to perform multiple-input multiple-output (MIMO) beamforming during carrier aggregation.

15. The apparatus of claim 1, wherein the processing circuitry is further arranged to limit operation of the short range extension carrier to one of a download only mode, an upload only mode, or a time-division mode.

16. A non-transitory computer-readable storage medium that stores instructions for execution by one or more processors of a dual-mode base station, the one or more processors to configure the dual-mode base station to:

configure a short range extension carrier via an evolved NodeB (eNB), a primary cell (PCell) provided by the eNB and a secondary cell (SCell) provided by the short range extension carrier;

activate the short range extension carrier via the eNB;

determine whether to offload traffic flow from the PCell to the SCell in response to a determination made by the PCell based on one or more measurements at at least one of the PCell or SCell;

in response to a determination to offload the traffic flow, select at least one traffic flow of a user equipment (UE) based on at least one of;

a type of traffic of the at least one traffic flow, the UE, network conditions or a configuration of the SCell; and

in response to a determination to offload transmissions from the PCell to the SCell, provide cross carrier scheduling and carrier aggregation in a licensed band and an unlicensed band for the at least one traffic flow of the UE.

17. The medium of claim 16, wherein:

the one or more measurements comprise Radio Resource Management (RRM) or Quality of Experience (QoE) measurements at at least one of the PCell or SCell, and

to at least one of;

the configuration provided from the PCell to the SCell is dependent on the one or more measurements, or

the PCell is further arranged to control carrier aggregation with the SCell dependent on the one or more measurements.

18. The medium of claim 16, wherein the one or more processors further configure the dual-mode base station to:

configure the PCell to retain at least one of the traffic flows of the particular UE and offload at least one of the traffic flows to the SCell.

19. An apparatus of a dual-mode base station, the apparatus comprising:

a memory; and

processing circuitry in communication with the memory, the processing circuitry arranged to;

configure an evolved NodeB (eNB) to provide a primary cell (PCell); and

configure a short range extension carrier to provide a secondary cell (SCell),

configure the eNB to;

activate and deactivate the short range extension carrier,

obtain measurements at at least one of the PCell or SCell and determine whether to offload traffic flow from the PCell to the SCell based on the one or more measurements,

select at least one traffic flow of a user equipment (UE) based on at least one of;

a type of traffic of the at least one traffic flow, the UE, network conditions or a configuration of the SCell, and

provide cross carrier scheduling and carrier aggregation in a licensed band and an unlicensed band for the at least one traffic flow of the UE.

20. The base station of claim 19, wherein:

the one or more measurements comprise Radio Resource Management (RRM) or Quality of Experience (QoE) measurements at at least one of the PCell or SCell, and

at least one of;

the configuration provided from the PCell to the SCell is dependent on the one or more measurements, or

the PCell is further arranged to control carrier aggregation with the SCell dependent on the one or more measurements.