Rank indicator inheritance for subframe restricted channel state information reporting

• US 9,854,490 B2
• Filed: 12/12/2013
• Issued: 12/26/2017
• Est. Priority Date: 01/03/2013
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Davydov, Alexei, Bolotin, Ilya, Maltsev, Alexander, Morozov, Gregory V., Chatterjee, Debdeep
• Primary Examiner(s): Yao, Kwang B
• Assistant Examiner(s): Bokhari, Syed M
• Application Number:
  US14/759,109
• Publication Number:
  US 20150341817A1
• Time in Patent Office: 1,475 Days
• Field of Search: 370252, 370329, 370328, 375267
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0486 taking channel rank into account
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04B 7/0632 Channel quality parameters, e.g. channel quality indicator [CQI]
• CPC Class Codes: H04J 11/0053 using co-ordinated multipoint transmission/reception co-ordinated antenna or beam-forming aspects H04B7/022
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 12/4641 Virtual LANs, VLANs, e.g. virtual private networks [VPN] LAN interconnection over a bridge based backbone H04L12/462; encapsulation techniques H04L12/4633; routing of packets H04L45/00; packet switches H04L49/00; virtual private networks for security H04L63/0272
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0057 Physical resource allocation for CQI
• CPC Class Codes: H04L 61/5007 Internet protocol [IP] addresses
• CPC Class Codes: H04L 63/304 intercepting circuit switched data communications lawful interception of wireless network communications H04W12/02
• CPC Class Codes: H04L 63/306 intercepting packet switched data communications, e.g. Web, Internet or IMS communications
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 36/0005 Control or signalling for completing the hand-off
• CPC Class Codes: H04W 36/0011 for data sessions of end-to-end connection
• CPC Class Codes: H04W 36/0055 Transmission or use of information for re-establishing the radio link
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/22 for handling the traffic
• CPC Class Codes: H04W 48/08 : Access restriction or access information delivery, e.g. discovery data delivery signalling during connection H04W76/00
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0222 : in packet switched networks
• CPC Class Codes: H04W 56/0015 : one node acting as a reference for the others
• CPC Class Codes: H04W 56/005 : compensating for timing error by adjustment in the receiver
• CPC Class Codes: H04W 56/0095 : estimated based on signal strength
• CPC Class Codes: H04W 68/00 : User notification, e.g. alerting and paging, for incoming communication, change of service or the like
• 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 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/11 : Allocation or use of connection identifiers
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 8/082 : for traffic bypassing of mobility servers, e.g. location registers, home PLMNs or home agents
• CPC Class Codes: H04W 84/12 : WLAN [Wireless Local Area Networks]
• CPC Class Codes: H04W 88/06 : adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals
• CPC Class Codes: H04W 88/08 : Access point devices
• CPC Class Codes: H04W 88/16 : Gateway arrangements
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Generally, this disclosure provides devices, systems and methods for subframe restricted Channel State Information (CSI) reporting with Rank Indicator (RI) inheritance. A User Equipment (UE) device may include an RI generation module to generate RIs based on a received CSI configuration from an evolved Node B (eNB) of a serving cell of the UE. The UE may also include an RI Reference Process CSI generation module to generate a first Reference CSI including a first selected RI of the generated RIs, the first selection based on a first subframe set of the received CSI configuration, and to generate a second Reference CSI including a second selected RI of the generated RIs, the second selection based on a second subframe set of the received CSI configuration. The UE may further include a Linked Process CSI generation module to generate a linked CSI including an inherited RI from the first Reference CSI.

Claims

1. User Equipment (UE) to mitigate inter-cell interference, comprising:

Rank Indicator (RI) generation circuitry to generate one or more RIs based on a received Channel State Information (CSI) configuration from an evolved Node B (eNB) of a serving cell of said UE;

RI Reference Process CSI generation circuitry to generate a first reference CSI comprising a first selected RI of said one or more RIs, said first selection based on a first subframe set of said received CSI configuration, and to generate a second reference CSI comprising a second selected RI of said one or more RIs, said second selection based on a second subframe set of said received CSI configuration;

Linked Process CSI generation circuitry to periodically generate a linked CSI comprising an inherited RI from said first reference CSI, said Linked Process CSI generation circuitry further comprising Channel Quality Indicator (CQI) generation circuitry to measure channel quality and signal strength, relative to interference plus noise, associated with received signals and generate a CQI based on said signal measurements and said inherited RI; and

a transmission circuit to transmit at least said RI, CSI and CQI to a network controller for a network including at least said UE for use in mitigating said inter-cell interference.

2. The UE of claim 1, wherein said Linked Process CSI generation circuitry further comprises a Pre-Coding Matrix Indicator (PMI) generation circuitry to generate a PMI based on said inherited RI.

3. The UE of claim 1, wherein said first subframe set is associated with a macro cell eNB operating in a non-blanking mode and said second subframe set is associated with said macro cell eNB operating in a blanking mode.

4. The UE of claim 3, wherein said blanking and non-blanking modes are employed in an Enhanced Inter-Cell Interference Coordination (EICIC) wireless network.

5. The UE of claim 3, wherein said blanking and non-blanking modes are employed in a Coordinated Multipoint (CoMP) wireless network.

6. The UE of claim 1, wherein said transmitter circuit is to transmit said first reference CSI, said second reference CSI and said linked CSI to said serving cell eNB over a Physical Uplink Shared Channel (PUSCH), said transmission occurring aperiodically in response to a trigger from said serving cell eNB.

7. The UE of claim 1, wherein said transmitter circuit is to transmit said first reference CSI, said second reference CSI and said linked CSI to said serving cell eNB over a Physical Uplink Control Channel (PUCCH), said transmission occurring periodically at programmable intervals.

8. User Equipment (UE) to mitigate inter-cell interference, comprising:

Rank Indicator (RI) generation circuitry to generate one or more RIs based on a received Channel State Information (CSI) configuration from an evolved Node B (eNB) of a serving cell of said UE;

RI Reference Process CSI generation circuitry to generate a reference CSI comprising a selected RI of said one or more RIs;

Linked Process CSI generation circuitry to periodically generate a first linked CSI, associated with a first subframe set of said received CSI configuration, comprising an inherited RI from said reference CSI, and to generate a second linked CSI, associated with a second subframe set of said received CSI configuration, comprising said inherited RI from said reference CSI, said Linked Process CSI generation circuitry further comprising Channel Quality Indicator (CQI) generation circuitry to measure channel quality and signal strength, relative to interference plus noise, associated with received signals and generate a CQI based on said signal measurements and said inherited RI; and

a transmission circuit to transmit at least said RI, first linked CSI, second linked CSI and CQI to a network controller for a network including at least said UE for use in mitigating said inter-cell interference.

9. The UE of claim 8, wherein said Linked Process CSI generation circuitry further comprises Pre-Coding Matrix Indicator (PMI) generation circuitry to generate a PMI based on said inherited RI.

10. The UE of claim 8, wherein said first subframe set is associated with a macro cell eNB operating in a non-blanking mode and said second subframe set is associated with said macro cell eNB operating in a blanking mode.

11. The UE of claim 10, wherein said blanking and non-blanking modes are employed in an Enhanced Inter-Cell Interference Coordination (EICIC) wireless network.

12. The UE of claim 8, wherein said RI Reference Process CSI is associated with time periods during which an interfering cell eNB is operating in a blanking mode and said Linked Process CSI is associated with time periods during which said interfering cell eNB is operating in a non-blanking mode.

13. The UE of claim 12, wherein said blanking and non-blanking modes are employed in a Coordinated Multipoint (CoMP) wireless network.

14. The UE of claim 8, wherein said transmitter circuit is to transmit said reference CSI, said first linked CSI and said second linked CSI to said serving cell eNB over a Physical Uplink Shared Channel (PUSCH), said transmission occurring aperiodically in response to a trigger from said serving cell eNB.

15. The UE of claim 8, wherein said transmitter circuit is to transmit said reference CSI, said first linked CSI and said second linked CSI to said serving cell eNB over a Physical Uplink Control Channel (PUCCH), said transmission occurring periodically at programmable intervals.

16. User Equipment (UE) to mitigate inter-cell interference, comprising:

Rank Indicator (RI) generation circuitry to generate one or more RIs based on a received Channel State Information (CSI) configuration from an evolved Node B (eNB) of a serving cell of said UE;

RI Reference Process CSI generation circuitry to generate a first reference CSI comprising a first selected RI of said one or more RIs, said first selection based on a first subframe set of said received CSI configuration, and to generate a second reference CSI comprising a second selected RI of said one or more RIs, said second selection based on a second subframe set of said received CSI configuration;

Linked Process CSI generation circuitry to periodically generate a first linked CSI, associated with said first subframe set of said received CSI configuration, comprising an inherited RI from said first reference CSI, and to generate a second linked CSI, associated with said second subframe set of said received CSI configuration, comprising an inherited RI from said second reference CSI, said Linked Process CSI generation circuitry further comprising Channel Quality Indicator (CQI) generation circuitry to measure channel quality and signal strength, relative to interference plus noise, associated with received signals and generate a CQI based on said signal measurements and said inherited RI; and

a transmission circuit to transmit at least said RI, first linked CSI, second linked CSI and CQI to a network controller for a network including at least said UE for use in mitigating said inter-cell interference.

17. The UE of claim 16, wherein said Linked Process CSI generation circuitry further comprises a Pre-Coding Matrix Indicator (PMI) generation circuitry to generate a PMI based on said inherited RI.

18. The UE of claim 16, wherein said first subframe set is associated with a macro cell eNB operating in a non-blanking mode and said second subframe set is associated with said macro cell eNB operating in a blanking mode.

19. The UE of claim 18, wherein said blanking and non-blanking modes are employed in an Enhanced Inter-Cell Interference Coordination (EICIC) wireless network.

20. The UE of claim 16, wherein said RI Reference Process CSI is associated with time periods during which an interfering cell eNB is operating in a blanking mode and said Linked Process CSI is associated with time periods during which said interfering cell eNB is operating in a non-blanking mode.

21. The UE of claim 20, wherein said blanking and non-blanking modes are employed in a Coordinated Multipoint (CoMP) wireless network.

22. The UE of claim 16, wherein said transmitter circuit is to transmit said first reference CSI, said second reference CSI, said first linked CSI and said second linked CSI to said serving cell eNB over a Physical Uplink Shared Channel (PUSCH), said transmission occurring aperiodically in response to a trigger from said serving cell eNB.

23. The UE of claim 16, wherein said transmitter circuit is to transmit said first reference CSI, said second reference CSI, said first linked CSI and said second linked CSI to said serving cell eNB over a Physical Uplink Control Channel (PUCCH), said transmission occurring periodically at programmable intervals.

24. A method to mitigate inter-cell interference, comprising:

receiving a signal from one or more evolved Node Bs (eNBs), said signal comprising a Channel State Information (CSI) configuration;

calculating one or more Rank Indicators (RIs) based on said received signals and said CSI configuration;

generating one or more reference CSIs, each reference CSI comprising a selected RI of said one or more RIs, said selection based on an associated subframe set and further based on said received signals;

periodically generating one or more linked CSIs, each linked CSI corresponding to one of said reference CSIs and comprising an inherited RI from said corresponding reference CSI;

measuring channel quality and signal strength, relative to interference plus noise, associated with received signals;

generating a CQI based on said signal measurements and said inherited RI; and

transmitting at least said RI, one or more linked CSIs and CQI for use in mitigating said inter-cell interference.