Uplink coordinated multi-point

• US 10,097,323 B2
• Filed: 01/17/2017
• Issued: 10/09/2018
• 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:
  US15/408,223
• Publication Number:
  US 20170126375A1
• Time in Patent Office: 630 Days
• 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. A user equipment (UE), comprising:

first circuitry to;

identify a virtual cell identity based on a received indicator of the virtual cell identity, the virtual cell identity dynamically selected for association with an evolved universal mobile telecommunication system terrestrial radio access network (E-UTRAN), the virtual cell identity different from a physical layer cell identity corresponding to a cell of the E-UTRAN; and

identify a seed based on a received indicator of the seed, the seed being different than the virtual cell identity and the physical layer cell identity; and

second circuitry to;

generate a demodulation reference signal parameter based on the virtual cell identity; and

determine a cyclic shift for a demodulation reference signal based on the seed.

2. The UE of claim 1, wherein to generate the demodulation reference signal parameter includes to:

determine one or more parameters based on the virtual cell identity; and

generate the demodulation reference signal parameter based on the one or more parameters.

3. The UE of claim 2, wherein the one or more parameters include a base sequence.

4. The UE of claim 1, wherein to determine the cyclic shift for the demodulation reference signal includes to:

derive the cyclic shift based on a cyclic shift parameter that depends on the seed.

5. The UE of claim 1, wherein the second circuitry is to further generate the demodulation reference signal based on the demodulation reference signal parameter.

6. The UE of claim 1, wherein:

the first circuitry is to further receive a cyclic shift hop initialization value; and

the second circuitry is to further generate a cyclic shift for a demodulation reference signal by initializing a pseudo-random sequence generator with the cyclic shift hop initialization value.

7. The UE of claim 1, wherein the seed is independent from the virtual cell identity and the physical layer cell identity.

8. An evolved NodeB (eNB), comprising:

first circuitry to;

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

select a seed, the seed being different than the virtual cell identity and the physical layer cell identity; and

second circuitry to;

provide, to a user equipment (UE), an indication of the virtual cell identity, the virtual cell identity for use by the UE in generating a demodulation reference signal parameter based on the virtual cell identity;

provide, to the UE, an indication of the seed, wherein a cyclic shift parameter for use in determination of a cyclic shift for a demodulation reference signal is based on the seed.

9. The eNB of claim 8, wherein the determination of the cyclic shift includes derivation of the cyclic shift based on the cyclic shift parameter.

10. The eNB of claim 8, wherein:

the first circuitry is to further select a cyclic shift hop initialization value different from the virtual cell identity; and

the second circuitry is to further provide, to the UE, an indication of the cyclic shift hop initialization value, the cyclic shift hop initialization value for use in generation of a cyclic shift for a demodulation reference signal.

11. The eNB of claim 10, wherein the generation of the cyclic shift for the demodulation reference signal includes initialization of a pseudo-random sequence generator with the cyclic shift hop initialization value.

12. The eNB of claim 10, wherein the indication of the cyclic shift hop initialization value is provided via a radio resource control signal.

13. The eNB of claim 8, wherein the indication of the virtual cell identity is provided via a radio resource control signal.

14. The eNB of claim 8, wherein the seed is independent from the virtual cell identity and the physical layer cell identity.

15. A user equipment (UE), comprising:

first circuitry to identify a UE-specific acknowledge and negative-acknowledge (AN) resource offset from a received indication of the UE-specific AN resource offset, wherein the UE-specific AN resource offset is different from a virtual cell identity used by the UE to generate a demodulation reference signal parameter; and

second circuitry to determine a physical uplink control channel (PUCCH) resource based on the UE-specific AN resource offset, the PUCCH resource to be used for transmission of AN transmissions.

16. The UE of claim 15, further comprising:

third circuitry to transmit an AN transmission in the determined PUCCH resource.

17. The UE of claim 15, wherein the indication of the UE-specific AN resource offset is received via a radio resource control signal.

18. An evolved NodeB (eNB), comprising:

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

second circuitry to provide, to the UE, an indicator of the AN resource offset, the UE-specific AN resource offset for use in determination of a PUCCH resource for the AN transmissions based on the AN resource offset.

19. The eNB of claim 18, further comprising third circuitry to receive an AN transmission from the UE in the determined PUCCH resource.

20. The eNB of claim 18, wherein the indicator of the UE-specific AN resource offset is provided via a radio resource control signal.