Channel state information feedback scheme for cooperative multi point transmission and carrier aggregation scenario

• US 9,277,471 B2
• Filed: 10/25/2013
• Issued: 03/01/2016
• Est. Priority Date: 11/01/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: He, Hong, Davydov, Alexei Vladimirovich, Heo, Youn Hyoung, Fwu, Jong-Kae, Etemad, Kamran
• Primary Examiner(s): Moore, Ian N
• Assistant Examiner(s): Van Roie, Justin T
• Application Number:
  US14/126,654
• Publication Number:
  US 20140269383A1
• Time in Patent Office: 858 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H04B 7/0417 Feedback systems
• CPC Class Codes: H04B 7/0452 Multi-user MIMO systems
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• CPC Class Codes: H04J 11/00 Orthogonal multiplex systems, e.g. using WALSH codesH04J13/00 takes precedence
• CPC Class Codes: H04J 11/0023 Interference mitigation or co-ordination direct sequence spread spectrum [DSSS] systems H04B1/7097; frequency hopping H04B1/713; allocation criteria for ingress interference avoidance H04L5/0062; frequency allocation criteria for requirements on out-of-channel emissions H04L5/0066; arrangements for removing intersymbol interference or baseband equalisers H04L25/03006; peak power aspects in multicarrier modulation H04L27/2614; power management H04W52/00; traffic scheduling H04W72/54, H04W72/541
• CPC Class Codes: H04J 3/0614 the synchronising signal being characterised by the amplitude, duration or polarity
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 2101/375 Access point names [APN]
• CPC Class Codes: H04L 5/0046 Determination of how many bits are transmitted on different sub-channels
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 61/3005 Mechanisms for avoiding name conflicts
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04W 16/20 for indoor coverage or short range network deployment
• CPC Class Codes: H04W 16/24 Cell structures
• CPC Class Codes: H04W 16/26 Cell enhancers or enhancement, e.g. for tunnels, building shadow
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/04 Arrangements for maintaining operational condition
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• 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 28/04 : Error control
• CPC Class Codes: H04W 28/24 : Negotiating SLA [Service Level Agreement]; Negotiating QoS [Quality of Service]
• CPC Class Codes: H04W 36/14 : Reselecting a network or an air interface
• CPC Class Codes: H04W 36/20 : for optimising the interference level
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 60/04 : using triggered events
• CPC Class Codes: H04W 64/003 : locating network equipment
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• 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 72/54 : based on quality criteria
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/563 : of the wireless resources
• CPC Class Codes: H04W 74/0858 : collision detection
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/28 : Discontinuous transmission [DTX]; Discontinuous reception [DRX]
• CPC Class Codes: H04W 8/005 : Discovery of network devices, e.g. terminals
• CPC Class Codes: H04W 88/02 : Terminal devices
• 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

Embodiments of a system and method for reporting uplink control information (UCI) are generally described herein. In some embodiments, a first and second component carrier (CC) is provided for a user equipment (UE). The first and second CC are configured with transmission mode (TM) 10 and TMs 1-9, respectively. A first channel state information (CSI) report for the first CC with TM 10 and a second CSI report for the second CC with at least one of TMs 1-9 are scheduled for transmission in a subframe. A collision is detected between the first and second CSI reports. Priority is assigned to the first CSI report or the second CSI report based on a prioritization parameter. The prioritized CSI report is transmitted based the prioritization parameter.

Claims

1. A method for reporting uplink control information (UCI), comprising:

via an eNodeB;

providing a first component carrier (CC) and a second CC for a user equipment (UE) to communicate with a first transmit point and a second transmit point;

configuring the first CC with transmission mode (TM) 10 and the second CC with a legacy TM comprising at least one of TMs 1-9, the transmission modes comprising transmission modes of a Long Term Evolution (LTE) cellular network; and

configuring the first and second CCs with a physical uplink control channel (PUCCH) reporting type; and

via the UE;

generating a first channel state information (CSI) report for the first CC with transmission mode (TM) 10 and a second CSI report for the second CC with the legacy TM;

scheduling the first CSI report and the second CSI report for transmission in a subframe;

detecting a collision between the first CSI report and the second CSI report;

transmitting a radio resource control (RRC) message in response to detecting the collision between the first CSI report and the second CSI report to indicate the UE has configured CCs comprising both TM 10 and the legacy TM; and

transmitting the first or second CSI report based upon a prioritizing of the first CSI report and the second CSI report using the TM of the CSI reports when the PUCCH reporting type of the first and second CCs comprise a same first priority and a process index of the first CSI report and a process index of the second CSI report comprise a same second priority.

2. The method of claim 1, further comprising:

via the UE, prioritizing the first CSI report or the second CSI report based on a default control value indicating prioritization of the second CSI report for the second CC with the legacy TM over the first CSI report for the first CC with TM 10, the second CSI report being transmitted.

3. The method of claim 1, further comprising:

via the UE;

prioritizing the first CSI report or the second CSI report based on a default control value indicating prioritization of the first CSI report for the first CC with TM 10 over the second CSI report for the second CC with the legacy TM, the first CSI report being transmitted.

4. The method of claim 1, further comprising:

via the UE;

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determining the CSI process indices with the first CC with TM 10 and the second CC with the legacy TM are different; and

prioritizing the first CSI report or the second CSI report having a lowest CSI process index.

5. The method of claim 1, further comprising:

via the UE;

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determining the CSI process indices associated with the first CC with TM 10 and the second CC with the legacy TM are the same; and

prioritizing the first CSI report or the second CSI report having a lowest serving cell index.

6. The method of claim 1, further comprising:

via the UE;

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to zero; and

prioritizing the second CSI report over the first CSI report.

7. The method of claim 1, further comprising:

via the UE;

assigning a virtual CSI process index equal to zero for the second CC with the legacy TM to provide the second CSI report a highest priority;

or

assigning a virtual CSI process index equal to a non-zero value for the second CC with the legacy TM to provide the first CSI report a highest priority.

8. A user equipment (UE) configured for reporting uplink control information (UCI), comprising:

a processor; and

memory in electronic communication with the processor;

instructions stored in the memory, the instructions being executable by the processor to;

generate a first channel state information (CSI) report for a first component carrier (CC) with transmission mode (TM) 10 and a second CSI report for a second CC with a legacy TM comprising at least one of TMs 1-9, the first and second CCs having a physical uplink control channel (PUCCH) reporting type, the transmission modes comprising transmission modes of a Long Term Evolution (LTE) cellular network;

schedule the first CSI report and the second CSI report for transmission in a subframe;

detect a collision between the first CSI report and the second CSI report;

transmit a radio resource control (RRC) message in response to detecting the collision between the first CSI report and the second CSI report to indicate the UE has received CCs comprising both TM 10 and the legacy TM; and

transmit the first or second CSI report based upon a prioritizing of the first CSI report and the second CSI report using the TM of the CSI reports when the PUCCH reporting type of the first and second CCs comprise a same first priority and a process index of the first CSI report and a process index of the second CSI report comprise a same second priority.

9. The user equipment of claim 8, wherein the second CSI report for the second CC with the legacy TM is to be prioritized over the first CSI report for the first CC with TM 10.

10. The user equipment of claim 8, wherein the first CSI report for the first CC with TM 10 is to be prioritized over the second CSI report for the second CC with the legacy TM.

11. The user equipment of claim 8, wherein the memory further includes instructions to:

identify the first CC with TM 10 and the second CC with the legacy TM with CSI process indices of the first and second CSI reports;

set the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determine the CSI process indices associated with the first CC with TM 10 and the second CC with the legacy TM are different; and

prioritize the first CSI report or the second CSI report having a lowest CSI process index.

12. The user equipment of claim 8, wherein the memory further includes instructions to:

identify the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

set the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determine the CSI process indices associated with the first CC with TM 10 and the second CC with the legacy TM are the same; and

prioritize the first CSI report or the second CSI report having a lowest serving cell index.

13. The user equipment of claim 8, wherein the memory further includes instructions to:

identify the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

set the CSI process index of the second CC with the legacy TM to be equal to zero; and

prioritize the second CSI report over the first CSI report.

14. The user equipment of claim 8, wherein the memory further includes instructions to:

assign a virtual CSI process index equal to zero for the second CC with the legacy TM to provide the second CSI report a highest priority;

or

assign a virtual CSI process index equal to a non-zero value for the second CC with the legacy TM to provide the first CSI report a highest priority.

15. At least one non-transitory machine readable medium comprising instructions that, when executed by a user equipment (UE), cause the UE to perform operations for reporting uplink control information (UCI), the operations comprising:

generating a first channel state information (CSI) report for a first component carrier (CC) with transmission mode (TM) 10 and a second CSI report for a second CC with a legacy TM comprising at least one of TMs 1-9, the first and second CCs having a physical uplink control channel (PUCCH) reporting type, the transmission modes comprising transmission modes of a Long Term Evolution (LTE) cellular network;

scheduling the first CSI report and the second CSI report for transmission in a subframe;

detecting a collision between the first CSI report and the second CSI report;

transmitting a radio resource control (RRC) message in response to detecting the collision between the first CSI report and the second CSI report to indicate the UE has configured CCs comprising both TM 10 and the legacy TM; and

transmitting the first or second CSI report based upon a prioritizing of the first CSI report and the second CSI report using the TM of the CSI reports when the PUCCH reporting type of the first and second CCs comprise a same first priority and a process index of the first CSI report and a process index of the second CSI report comprise a same second priority.

16. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

prioritizing the first CSI report or the second CSI report based on a default control value indicating prioritization of the second CSI report for the second CC with the legacy TM over the first CSI report for the first CC with TM 10.

17. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

prioritizing the first CSI report or the second CSI report based on a default control value indicating prioritization of the first CSI report for the first CC with TM 10 over the second CSI report for the second CC with the legacy TM.

18. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determining the CSI process indices associated with the first CC with TM 10 and the second CC with the legacy TM are different; and

prioritizing the first CSI report or the second CSI report having a lowest CSI process index.

19. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to or greater than zero;

determining the CSI process indices associated with the first CC with TM 10 and the second CC with the legacy TM are the same; and

prioritizing the first CSI report or the second CSI report having a lowest serving cell index.

20. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

identifying the first CC with TM 10 and the second CC with the legacy TM with CSI process indices and serving cell indices of the first and second CSI reports;

setting the CSI process index of the second CC with the legacy TM to be equal to zero; and

prioritizing the second CSI report over the first CSI report.

21. The at least one non-transitory machine readable medium of claim 15, wherein the operations further comprise:

assigning a virtual CSI process index equal to zero for the second CC with the legacy TM to provide the second CSI report a highest priority;

or

assigning a virtual CSI process index equal to a non-zero value for the second CC with the legacy TM to provide the first CSI report a highest priority.