Uplink coordinated multi-point

• US 9,154,279 B2
• Filed: 11/17/2014
• Issued: 10/06/2015
• Est. Priority Date: 01/27/2012
• Status: Active Grant

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Chatterjee, Debdeep, Etemad, Kamran, Yang, Rongzhen, Fwu, Jong-Kae, Papathanassiou, Apostolos
• Primary Examiner(s): MARCELO, MELVIN C
• Application Number:
  US14/543,759
• Publication Number:
  US 20150071235A1
• Time in Patent Office: 323 Days
• Field of Search: 370/252
• US Class Current: 1/1
• CPC Class Codes: H04B 1/69 Spread spectrum techniques
• 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 7/0413 MIMO systems
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04B 7/0623 Auxiliary parameters, e.g. power control [PCB] or not acknowledged commands [NACK], used as feedback information
• CPC Class Codes: H04B 7/0626 Channel coefficients, e.g. channel state information [CSI]
• 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 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/0027 Scheduling of signalling, e.g. occurrence thereof
• CPC Class Codes: H04L 1/0031 Multiple signaling transmission H04L1/1664, F15 take precedence
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 12/189 in combination with wireless systems selective distribution or broadcast in wireless communication networks H04W4/06
• CPC Class Codes: H04L 27/2607 Cyclic extensions
• CPC Class Codes: H04L 5/0035 Resource allocation in a cooperative multipoint environment
• CPC Class Codes: H04L 5/0048 Allocation of pilot signals, i.e. of signals known to the receiver
• CPC Class Codes: H04L 5/005 of common pilots, i.e. pilots destined for multiple users or terminals
• CPC Class Codes: H04L 5/0053 Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/611 : for multicast or broadcast systems for broadcast or conference H04L12/18; arrangements for broadcast or distribution combined with broadcast H04H20/00; arrangements for broadcast applications with a direct linkage to broadcast information or to broadcast space-time H04H60/00; selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS], H04W4/06
• 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 36/0094 : Definition of hand-off measurement parameters
• CPC Class Codes: H04W 36/04 : Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 4/08 : User group management
• CPC Class Codes: H04W 4/70 : Services for machine-to-machine communication [M2M] or machine type communication [MTC]
• CPC Class Codes: H04W 48/16 : Discovering, processing access restriction or access information
• CPC Class Codes: H04W 52/0216 : using a pre-established activity schedule, e.g. traffic indication frame
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/044 : based on the type of the allocated resource
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• CPC Class Codes: H04W 72/23 : in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/53 : based on regulatory allocation policies
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• 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: Y02D 30/70 : in wireless communication networks

Abstract

Disclosed embodiments may include an apparatus having one or more processors coupled to one or more computer-readable storage media. The one or more processors may be configured to transmit and/or receive channel state information reference signal (CSI-RS) resource configuration information, demodulation reference signals (DM-RS), uplink sounding reference signals (SRS), and power control parameters to support uplink coordinated multi-point (CoMP) operations. Other embodiments may be disclosed.

Claims

1. One or more non-transitory computer readable media having instructions thereon that, in response to execution by one or more processing devices of a user equipment (UE), cause the UE to:

determine a physical layer cell identity corresponding to a cell of an evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN);

receive an indicator of a virtual cell identity via radio resource control signaling, the virtual cell identity different from a physical layer cell identity corresponding to a cell of an evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN);

receive a cyclic shift hop initialization value different from the virtual cell identity;

generate a demodulation reference signal (DM-RS) parameter based at least in part on the virtual cell identity, and

generate a cyclic shift for a DM-RS by initializing a pseudo-random sequence generator with the cyclic shift hop initialization value.

2. The one or more non-transitory computer readable media of claim 1, wherein the DM-RS parameter is a group hopping pattern.

3. The one or more non-transitory computer readable media of claim 1, wherein the DM-RS parameter is associated with a physical uplink shared channel.

4. The one or more non-transitory computer readable media of claim 1, wherein the DM-RS parameter is a sequence hopping parameter.

5. The one or more non-transitory computer readable media of claim 1, wherein generate a DM-RS parameter based at least in part on the virtual cell identity comprises initialize a pseudo-random sequence generator with the virtual cell identity.

6. The one or more non-transitory computer readable media of claim 1, wherein the DM-RS parameter is a cyclic shift for a DM-RS for a physical uplink shared channel.

7. The one or more non-transitory computer readable media of claim 1, wherein the instructions, in response to execution by the one or more processing devices, cause the UE to communicate with a positioning network.

8. The one or more non-transitory computer readable media of claim 1, wherein the cyclic shift hop initialization value is received via radio resource control signaling.

9. A method, comprising:

selecting, by an eNB, a virtual cell identity, the virtual cell identity different from a physical layer cell identity corresponding to a cell of an evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN);

selecting, by the eNB, a cyclic shift hop initialization value different from the virtual cell identity; and

providing, by the eNB to a user equipment (UE) via radio resource control signaling, an indicator of the virtual cell identity for use in generating a demodulation reference signal (DM-RS) parameter based at least in part on the indicator, and an indicator of the cyclic shift hop initialization value for use in generating a cyclic shift for a DM-RS by initializing a pseudo-random sequence generator with the cyclic shift hop initialization value.

10. The method of claim 9, wherein the DM-RS parameter is a group hopping pattern.

11. The method of claim 9, wherein the DM-RS parameter is associated with a physical uplink shared channel.

12. The method of claim 9, wherein the DM-RS parameter is a sequence hopping parameter.

13. The method of claim 9, wherein providing, by the eNB to the UE, the indicator of the virtual cell identity for use in generating a DM-RS parameter based at least in part on the indicator comprises providing, by the eNB to the UE, the indicator for use in initializing a pseudo-random sequence generator with the virtual cell identity.

14. The method of claim 9, wherein the DM-RS parameter is a cyclic shift for a DM-RS for a physical uplink shared channel.

15. The method of claim 9, wherein the indicator of the virtual cell identity is provided to the UE for use in generating a DM-RS parameter based at least in part on the indicator and for use in generating a sounding reference signal (SRS) parameter based at least in part on the indicator.

16. The method of claim 9, wherein the cyclic shift hop initialization value is provided via radio resource control signaling.

17. A user equipment (UE) comprising:

means for receiving an indicator of a UE-specific acknowledge and negative-acknowledge (AN) resource offset for a physical uplink control channel (PUCCH), wherein the AN resource offset is different from a virtual cell identity used by the UE to generate a demodulation reference signal (DM-RS) parameter; and

means for determining a PUCCH resource based at least in part on the AN resource offset.

18. The UE of claim 17, further comprising:

means for causing the UE to use the determined PUCCH resource for transmission of AN.

19. The UE of claim 17, wherein the indicator of the AN resource offset is received via radio resource control signaling.

20. One or more non-transitory computer readable media having instructions thereon that, in response to execution by one or more processing devices of an eNB, cause the eNB to:

select a user equipment (UE)-specific acknowledge and negative-acknowledge (AN) resource offset for a physical uplink control channel (PUCCH), wherein the AN resource offset is different from a virtual cell identity used by the UE to generate a demodulation reference signal (DM-RS) parameter; and

provide an indicator of the AN resource offset, to a UE, for use in determining a PUCCH resource based at least in part on the indicator.

21. The one or more non-transitory computer readable media of claim 20, wherein the instructions, in response to execution by the one or more processing devices, cause the eNB to receive AN transmitted from the UE in the determined PUCCH resource.

22. The one or more non-transitory computer readable media of claim 21, wherein the indicator of the AN resource offset is provided, to the UE, via radio resource control signaling.

23. One or more non-transitory computer readable media having instructions thereon that, in response to execution by one or more processing devices of an eNB, cause the eNB to:

select a virtual cell identity, the virtual cell identity different from a physical layer cell identity corresponding to a cell of an evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN);

select a cyclic shift hop initialization value different from the virtual cell identity; and

provide, to a user equipment (UE) via radio resource control signaling, an indicator of the virtual cell identity for use in generating a demodulation reference signal (DM-RS) parameter based at least in part on the indicator, and an indicator of the cyclic shift hop initialization value for use in generating a cyclic shift for a DM-RS by initializing a pseudo-random sequence generator with the cyclic shift hop initialization value.

24. The one or more non-transitory computer readable media of claim 23, wherein the DM-RS parameter is a group hopping pattern.

25. The one or more non-transitory computer readable media of claim 23, wherein the DM-RS parameter is associated with a physical uplink shared channel.

26. The one or more non-transitory computer readable media of claim 23, wherein the DM-RS parameter is a sequence hopping parameter.

27. The one or more non-transitory computer readable media of claim 23, wherein provision, to the UE, of the indicator of the virtual cell identity for use in generating a DM-RS parameter based at least in part on the indicator comprises orovision, to the UE, the indicator for use in initializing a pseudo-random sequence generator with the virtual cell identity.

28. The one or more non-transitory computer readable media of claim 23, wherein the DM-RS parameter is a cyclic shift for a DM-RS for a physical uplink shared channel.

29. The one or more non-transitory computer readable media of claim 23, wherein the indicator of the virtual cell identity is provided to the UE for use in generating a DM-RS parameter based at least in part on the indicator and for use in generating a sounding reference signal (SRS) parameter based at least in part on the indicator.

30. The one or more non-transitory computer readable media of claim 23, wherein the cyclic shift hop initialization value is provided via radio resource control signaling.