Physical resource block (PRB)-restricted interference averaging in a wireless communication system

• US 10,271,304 B2
• Filed: 12/13/2013
• Issued: 04/23/2019
• Est. Priority Date: 03/01/2013
• Status: Expired due to Fees

• Current Assignee: Apple Inc.
• Original Assignee: Intel IP Corporation (Intel Corporation)
• Inventors: Davydov, Alexei, Han, Seunghee, Zhu, Yuan, Maltsev, Alexander, Morozov, Gregory, Chen, Xiaogang
• Primary Examiner(s): Jain, Raj
• Assistant Examiner(s): Lee, Andrew C
• Application Number:
  US14/764,547
• Publication Number:
  US 20150365960A1
• Time in Patent Office: 1,957 Days
• CPC Class Codes: H04B 7/0452 Multi-user 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: H04J 3/12 Arrangements providing for calling or supervisory signals
• CPC Class Codes: H04L 12/184 with heterogeneous receivers, e.g. layered multicast
• CPC Class Codes: H04L 25/03 Shaping networks in transmitter or receiver, e.g. adaptive shaping networks
• CPC Class Codes: H04L 45/74 Address processing for routing
• CPC Class Codes: H04L 5/0037 Inter-user or inter-terminal allocation
• CPC Class Codes: H04L 65/4038 with floor control
• 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: H04L 65/80 Responding to QoS
• CPC Class Codes: H04L 67/02 based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04M 15/8044 Least cost routing
• CPC Class Codes: H04W 12/02 Protecting privacy or anonymity, e.g. protecting personally identifiable information [PII]
• CPC Class Codes: H04W 12/04 Key management, e.g. using generic bootstrapping architecture [GBA]
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/02 Arrangements for optimising 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 36/14 Reselecting a network or an air interface
• CPC Class Codes: H04W 36/165 : for reducing network power consumption H04W36/18 - H04W36/22 take precedence
• CPC Class Codes: H04W 36/22 : for handling the traffic
• CPC Class Codes: H04W 4/06 : Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
• CPC Class Codes: H04W 4/10 : Push-to-Talk [PTT] or Push-On-Call services
• CPC Class Codes: H04W 4/80 : Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
• CPC Class Codes: H04W 48/10 : using broadcasted information
• CPC Class Codes: H04W 48/20 : Selecting an access point
• CPC Class Codes: H04W 52/244 : Interferences in heterogeneous networks, e.g. among macro and femto or pico cells or other sector / system interference [OSI]
• 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 72/30 : Resource management for broadcast services
• CPC Class Codes: H04W 72/542 : using measured or perceived quality
• CPC Class Codes: H04W 72/543 : based on requested quality, e.g. QoS
• CPC Class Codes: H04W 72/56 : based on priority criteria
• CPC Class Codes: H04W 76/10 : Connection setup
• CPC Class Codes: H04W 76/14 : Direct-mode setup
• CPC Class Codes: H04W 76/20 : Manipulation of established connections
• CPC Class Codes: H04W 76/23 : Manipulation of direct-mode connections
• CPC Class Codes: H04W 76/27 : Transitions between radio resource control [RRC] states
• CPC Class Codes: H04W 76/30 : Connection release
• CPC Class Codes: H04W 84/18 : Self-organising networks, e.g. ad-hoc networks or sensor networks
• 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: Y02B 70/30 : Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
• CPC Class Codes: Y02D 30/70 : in wireless communication networks

Abstract

Methods, apparatuses, and systems are described related to interference averaging to generate feedback information. In embodiments, an evolved Node B (eNB) may transmit an feedback management message to a user equipment (UE) that defines one or more PRB sets. The PRB sets may include at least one PRB of the channel. The UE may average interference measurements within the PRB set and may generate channel state information (CSI) feedback for the PRB set based on the average interference measurement. The UE may transmit the CSI feedback to the eNB.

Claims

1. An apparatus to be employed by a user equipment (UE) to generate feedback information, the apparatus comprising:

communication circuitry to;

wirelessly communicate with an evolved Node B (eNB) via physical resource blocks (PRBs) of a channel, wherein the PRBs are differentiated in a frequency domain; and

receive, from the eNB, a message defining a first PRB set and a second PRB set for independent interference averaging by the UE, wherein the first PRB set includes one or more PRBs of the channel and the second PRB set includes at least one PRB of the channel; and

feedback circuitry coupled to the communication circuitry, the feedback circuitry to;

generate a first channel state information (C SI) report for the first PRB set based on a first average interference measurement for the one or more PRBs of the first PRB set;

generate a second CSI report for the second PRB set based on a second average interference measurement for the at least one PRB of the second PRB set; and

transmit, via the communication circuitry, the first and second CSI reports to the eNB.

2. The apparatus of claim 1, further comprising interference measurement circuitry to generate the first and second average interference measurements.

3. The apparatus of claim 1, wherein a sub-band of the channel includes PRBs that are included in the first PRB set and PRBs that are included in the second PRB set.

4. The apparatus of claim 1, wherein the message includes a bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the bitmap correspond to respective PRBs of the channel and wherein the individual bits indicate whether the corresponding PRB is included in the first PRB set.

5. The apparatus of claim 4, wherein the bitmap is a first bitmap, and wherein the message further includes a second bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the second bitmap correspond to respective PRBs of the channel and wherein the individual bits of the second bitmap indicate whether the corresponding PRB is included in the second PRB set.

6. The apparatus of claim 1, wherein the PRBs included in the first PRB set are non-contiguous in the frequency domain.

7. The apparatus of claim 1, wherein the first and second PRB sets are non-overlapping.

8. The apparatus of claim 1, wherein the apparatus is a mobile device with a touchscreen and one or more cameras.

9. An apparatus to be employed by an evolved Node B (eNB), the apparatus comprising:

communication circuitry to communicate with a user equipment (UE) over physical resource blocks (PRBs) of a channel, wherein the PRBs are differentiated in a frequency domain; and

feedback management circuitry coupled to the communication circuitry, the feedback management circuitry to;

generate a message defining a first PRB set and a second PRB set for independent interference averaging by the UE, wherein the first PRB set includes one or more PRBs of the channel and the second PRB set includes at least one PRB of the channel; and

transmit the message, via the communication circuitry, to the UE to instruct the UE to generate a first channel state information (CSI) report for the first PRB set based on a first average interference measurement for the one or more PRBs of the first PRB set and a second CSI report for the second PRB set based on a second average interference measurement for the at least one PRB of the second PRB set.

10. The apparatus of claim 9, wherein the communication circuitry is to receive a relative narrowband transmit power (RNTP) message from another eNB to indicate whether transmissions on individual PRBs of the channel are limited by a threshold, and wherein the feedback management circuitry is to determine the PRBs included in the first and second PRB sets based on the RNTP message.

11. The apparatus of claim 9, wherein the communication circuitry is further to receive the first and second CSI reports from the UE, and wherein the apparatus further comprises scheduling circuitry to schedule transmissions to the UE based on the first and second CSI reports.

12. The apparatus of claim 9, wherein a sub-band of the channel includes PRBs that are included in the first PRB set and PRBs that are included in the second PRB set.

13. The apparatus of claim 9, wherein the message includes a bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the bitmap correspond to respective PRBs of the channel and wherein the individual bits indicate whether the corresponding PRB is included in the first PRB set.

14. The apparatus of claim 13, wherein the bitmap is a first bitmap, and wherein the message further includes a second bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the second bitmap correspond to respective PRBs of the channel and wherein the individual bits of the second bitmap indicate whether the corresponding PRB is included in the second PRB set.

15. The apparatus of claim 9, wherein the PRBs included in the first PRB set are non-contiguous in the frequency domain.

16. The apparatus of claim 9, wherein the first and second PRB sets are non-overlapping.

17. A method to be performed by a user equipment (UE), the method comprising:

receiving, from an evolved Node B (eNB) of a wireless communication network, a bitmap having a plurality of bits, wherein individual bits of the plurality of bits correspond to respective physical resource blocks (PRBs) of a channel that are differentiated in a frequency domain to assign one or more of the respective PRBs to a PRB set for independent interference averaging by the UE, and wherein the individual bits have a first logic value to indicate that the corresponding PRB is included in the PRB set or a second logic value to indicate that the corresponding PRB is not included in the PRB set;

averaging interference measurements for the PRBs of the PRB set to obtain an average interference measurement; and

generating a channel state information (CSI) report for the PRB set based on the average interference measurement.

18. The method of claim 17, wherein the PRBs included in the PRB set are non-contiguous.

19. The method of claim 17, wherein the bitmap is a first bitmap, the PRB set is a first PRB set, and the CSI report is a first CSI report, and wherein the method further includes:

receiving, from the eNB, a second bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the second bitmap correspond to respective PRBs of the channel to assign one or more of the respective PRBs to a second PRB set for independent interference averaging by the UE, and wherein individual bits have the second bitmap have the first logic value to indicate that the corresponding PRB is included in the second PRB set or the second logic value to indicate that the corresponding PRB is not included in the first PRB set;

averaging interference measurements for the PRBs of the second PRB set to obtain a second average interference measurement; and

generating a second CSI report for the second PRB set based on the second average interference measurement.

20. The method of claim 17, wherein the PRB set is a first PRB set, wherein the CSI report is a first CSI report, wherein the individual bits of the bitmap that have the second logic value indicate that the corresponding PRB is included in a second PRB set, and wherein the method further includes:

averaging interference measurements for the PRBs of the second PRB set to obtain a second average interference measurement; and

generating a second CSI report for the second PRB set based on the second average interference measurement.

21. One or more non-transitory computer-readable media having instructions, stored thereon, that when executed by one or more processors cause an evolved Node B (eNB) to:

generate a bitmap having a plurality of bits, wherein individual bits of the plurality of bits correspond to respective physical resource blocks (PRBs) of a channel, the PRBs differentiated from one another in a frequency domain of the channel;

set a subset of less than all the bits of the bitmap to a first logic value to indicate that the corresponding PRBs are included in a PRB set for independent interference averaging by the UE, wherein the PRBs included in the PRB set are non-contiguous in the frequency domain; and

transmit the bitmap to a user equipment (UE) to instruct the UE to generate a channel state information (C SI) report for the PRB set based on an average interference measurement for the PRBs of the PRB set.

22. The one or more non-transitory computer-readable media of claim 21, wherein the bitmap is a first bitmap, the PRB set is a first PRB set, and the CSI report is a first CSI report, and wherein the instructions, when executed by the one or more processors, further cause the eNB to:

generate a second bitmap having a plurality of bits, wherein individual bits of the plurality of bits of the second bitmap correspond to respective PRBs of the channel, the PRBs differentiated from one another in the frequency domain of the channel;

set a subset of less than all the bits of the second bitmap to the first logic value to indicate that the corresponding PRBs are included in a second PRB set for independent interference averaging by the UE, wherein the PRBs included in the second PRB set are non-contiguous in the frequency domain; and

transmit the second bitmap to the UE to instruct the UE to generate a second CSI report for the second PRB set based on an average interference measurement for the PRBs of the second PRB set.

23. The one or more non-transitory computer-readable media of claim 21:

wherein the PRB set is a first PRB set and the CSI report is a first CSI report;

wherein bits of the bitmap other than the subset of less than all the bits have a second logic value to indicate that the corresponding PRBs are included in a second PRB set; and

wherein the bitmap is further to instruct the UE to generate a second CSI report for the second PRB set based on an average interference measurement for the PRBs of the second PRB set.