IP Library Granted Patent US 10,097,323
Granted Patent B2
US 10,097,323 · App. 15/408,223 · Granted Oct 9, 2018

Uplink coordinated multi-point

Inventors: Debdeep Chatterjee (Mountain View, CA); Kamran Etemad (Potomac, MD); Rongzhen Yang (Shanghai, CN); Jong-Kae Fwu (Sunnyvale, CA); Apostolos Papathanassiou (San Jose, CA)
Assignee: Intel Corporation
H04L5/0035H04B7/0623H04B7/0626H04L5/005H04W48/16H04W52/0216H04W72/085H04W76/046H04W76/27
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Quick Facts
Patent No.
US 10,097,323
App. No.
15/408,223
Granted
Oct 9, 2018
Kind
B2
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 (44)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 20, 2020
From: INTEL CORPORATION
To: APPLE INC.
Reel/Frame 052916/0308 →
Continuity (5)
Continuation 14812927 · Jul 29, 2015
Continuation 14543759 · Nov 17, 2014
Continuation 13536722 · Jun 28, 2012
Provisional Application 61591641 · Jan 27, 2012
Related Publication 20170126375A1 · May 4, 2017