Interference mitigation in the context of heterogeneous networks with coordinated transmission points with a common transmission point identity

• US 9,155,082 B2
• Filed: 09/27/2012
• Issued: 10/06/2015
• Est. Priority Date: 03/16/2012
• Status: Expired due to Fees

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Davydov, Alexei, Morozov, Gregory, Maltsev, Alexander, Sergeyev, Vadim, Bolotin, Ilya
• Primary Examiner(s): SHARMA, SUJATHA R
• Application Number:
  US13/628,923
• Publication Number:
  US 20130244709A1
• Time in Patent Office: 1,104 Days
• Field of Search: 455/501, 455/509, 455/513, 455/452.1, 455/452.2, 455/67.13, 455/63.1, 370/252, 370/329
• US Class Current: 1/1
• CPC Class Codes: H04J 11/0073 Acquisition of primary synchronisation channel, e.g. detection of cell-ID within cell-ID group
• CPC Class Codes: H04L 1/0033 arrangements specific to the transmitter
• CPC Class Codes: H04L 1/0077 Cooperative coding
• CPC Class Codes: H04L 1/08 by repeating transmission, e.g. Verdan system H04L1/1858 and H04L1/189 take precedence
• CPC Class Codes: H04L 1/1607 Details of the supervisory signal
• CPC Class Codes: H04L 1/1635 Cumulative acknowledgement, i.e. the acknowledgement message applying to all previous messages
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1819 with retransmission of additional or different redundancy
• CPC Class Codes: H04L 1/1825 Adaptation of specific ARQ protocol parameters according to transmission conditions
• CPC Class Codes: H04L 1/1854 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/1861 Physical mapping arrangements for ACK signaling see also H04L5/0053
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1877 for semi-reliable protocols, e.g. for less sensitive applications like streaming video buffer level management for video bitstream control arrangements H04N21/44004
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 1/189 Transmission or retransmission of more than one copy of a message
• 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 12/2854 Wide area networks, e.g. public data networks
• CPC Class Codes: H04L 47/283 in response to processing delays, e.g. caused by jitter or round trip time [RTT]
• CPC Class Codes: H04L 47/6275 based on priority
• CPC Class Codes: H04L 5/001 : the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/0053 : Allocation of signaling, i.e. of overhead other than pilot signals
• CPC Class Codes: H04L 5/0055 : Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 5/0073 : Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/14 : Two-way operation using the same type of signal, i.e. duplex
• CPC Class Codes: H04L 5/1438 : Negotiation of transmission parameters prior to communication modified according to link quality H04L1/0001
• CPC Class Codes: H04L 5/1446 : of transmission speed
• CPC Class Codes: H04L 5/1469 : using time-sharing
• CPC Class Codes: H04L 65/75 : Media network packet handling
• CPC Class Codes: H04L 65/752 : adapting media to network capabilities
• CPC Class Codes: H04L 65/756 : adapting media to device capabilities
• CPC Class Codes: H04L 67/02 : based on web technology, e.g. hypertext transfer protocol [HTTP]
• CPC Class Codes: H04L 67/568 : Storing data temporarily at an intermediate stage, e.g. caching
• CPC Class Codes: H04N 21/25841 : involving the geographical location of the client retrieval from the Internet by querying based on geographical locations G06F16/9537; arrangements for identifying locations of receiving stations in broadcast systems H04H60/51; location of the user terminal in data switching networks H04L67/52; services making use of the location of users or terminals in wireless networks H04W4/02; locating users or terminals in wireless networks H04W64/00
• CPC Class Codes: H04N 21/41407 : embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop constructional details of equipment or arrangements specially adapted for portable computer application G06F1/1626; arrangements specially adapted for mobile receivers in broadcast systems H04H20/57
• CPC Class Codes: H04N 21/6405 : Multicasting data broadcast and multicast in packet switching networks H04L12/18
• CPC Class Codes: H04N 21/6408 : Unicasting
• CPC Class Codes: H04W 16/04 : Traffic adaptive resource partitioning
• CPC Class Codes: H04W 24/00 : Supervisory, monitoring or testing arrangements
• CPC Class Codes: H04W 24/02 : Arrangements for optimising operational condition
• CPC Class Codes: H04W 28/0236 : radio quality, e.g. interference, losses or delay
• 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 28/0278 : using buffer status reports dynamic wireless traffic scheduling definition H04W72/12
• 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 52/02 : Power saving arrangements in wired systems H04L12/12; signaling of mobile application services, e.g. low battery notifications H04W4/20
• CPC Class Codes: H04W 52/0206 : in access points, e.g. base stations access point devices per se H04W88/08
• CPC Class Codes: H04W 52/0209 : in terminal devices terminal devices per se H04W88/02
• CPC Class Codes: H04W 52/0229 : where the received signal is a wanted signal
• CPC Class Codes: H04W 52/0235 : where the received signal is a power saving command
• CPC Class Codes: H04W 52/143 : Downlink power control
• CPC Class Codes: H04W 52/243 : taking into account interferences
• CPC Class Codes: H04W 72/04 : Wireless resource allocation
• CPC Class Codes: H04W 72/0446 : Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/12 : Wireless traffic scheduling
• CPC Class Codes: H04W 72/1268 : of uplink data flows
• CPC Class Codes: H04W 72/1273 : of downlink data flows
• CPC Class Codes: H04W 72/20 : Control channels or signalling for resource management
• 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 72/27 : between access points
• CPC Class Codes: H04W 72/51 : based on terminal or device properties
• CPC Class Codes: H04W 72/541 : using the level of interference
• CPC Class Codes: H04W 72/569 : of the traffic information
• CPC Class Codes: H04W 74/085 : collision avoidance
• 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

Technology is discussed for extending frequency and time based approaches, such as Inter-Cell Interference Coordination (ICIC) and enhanced ICIC (eICIC), to interference mitigation for clusters within a Wireless Wide Area Network (WWAN) of transmission points with a common transmission point identity. Multiple transmission power messages correlated to different transmission point characteristics can be configured among multiple transmission points sharing the same transmission point identity. These multiple transmission power messages can be used to coordinate transmissions from adjacent transmission points on differing frequencies. Additionally, new sets of reference signals can be configured to correlate to different transmission point characteristics. These new, correlated reference signals can be used to decouple measurements used to provide feedback to one set of transmission points from reference signals transmitted by another set of transmission points with the same transmission point identity.

Claims

1. A computer program product comprising a non-transitory computer usable medium having a computer readable program code embodied therein, the computer readable program code adapted to be executed to implement instructions for a method for mitigating interference across clusters of wireless transmission points, comprising:

configuring, at a Down Link (DL) transmission point, a Relative Narrowband Transmit Power (RNTP) message indicating a first set of resource blocks at which the DL transmission point is set to transmit with a power that is one of at a power threshold and above a power threshold and a second set of resource blocks at which the DL transmission point is set to transmit with a power less than the power threshold;

identifying an attribute of the DL transmission point corresponding to the RNTP message distinct from a common Cell-IDentification (Cell-ID) of a Coordinated Multi Point (CoMP) cluster to which the DL transmission point pertains, the common Cell-ID also pertaining to at least one other transmission point in the CoMP cluster; and

sending the RNTP message via a backhaul link to at least one additional transmission point to enable at least one additional transmission point to schedule a wireless mobile device near a boundary for the DL transmission point on a resource block within a same frequency range as a resource block for which the DL transmission point is set to transmit with a power of less than the power threshold.

2. The computer program product of claim 1, wherein the attribute comprises an indication that the DL transmission point is one of a high-power transmission point and a low-power transmission point within a cluster of transmission points to which the DL transmission point belongs.

3. The computer program product of claim 2, wherein the high-power transmission point is a MaCro-Node (MCN) evolved Node B (eNodeB), and the low-power transmission point is one of a micro cell, a pico cell, a femto cell, a home eNodeB cell (HeNB), a Remote Radio Head (RRH), a Remote Radio Equipment (RRE), and a repeater.

4. The computer program product of claim 1, wherein the attribute comprises an identification unique to the DL transmission point within the CoMP cluster to which the DL transmission point belongs, wherein the identification comprises one of a virtual cell identification and an index value within a transmission point index for transmission points in the CoMP cluster.

5. The computer program product of claim 1, further comprising normalizing a power that is set for a resource block by a maximum transmission power for transmission in the CoMP cluster to which the DL transmission point belongs before determining whether to include the resource block in one of the first set of resource blocks and the second set of resource blocks.

6. The computer program product of claim 1, wherein the power threshold is unique to the attribute of the DL transmission point within the CoMP cluster to which the DL transmission point belongs.

7. The computer program product of claim 1, wherein a backhaul communication of the message takes place over an X2 interface, and the resource block includes 12 sub-carriers within a Physical Resource Block (PRB).

8. A device for reducing interference in a clustering scenario for transmission points for wireless communication, comprising:

a message module, at a facilitating transmission point, configured to generate a Relative Narrowband Transmit Power (RNTP) message, the RNTP message denoting whether at least one resource block from a set of resource blocks is scheduled for Down Link (DL) transmission at a power level that is one of above a predefined threshold and not above the predefined threshold;

a distinction module configured to provide information for the RNTP message distinguishing the facilitating transmission point from which the RNTP message originates where the facilitating transmission point has a Cell-IDentification (Cell-ID) common to at least one other transmission point in a Coordinated Multi Point (CoMP) cluster to which the facilitating transmission point pertains; and

a communication module configured to communicate the RNTP message from the facilitating transmission point to at least one adjacent transmission point over at least one backhaul link.

9. The device of claim 8, wherein the distinction module provides information distinguishing the facilitating transmission point by providing an indication in the RNTP message as to whether the transmission point is one of a high-power transmission point and a low-power transmission point.

10. The device of claim 9, wherein the high-power transmission point and the low-power transmission point belong to the CoMP cluster, wherein the CoMP cluster facilitates an ability to coordinate transmission activities between transmission points in the coordination set of transmission points, and wherein the communication module communicates the RNTP message to at least one transmission point outside of the CoMP cluster.

11. The device of claim 10, wherein a resource block comprises 12 sub-carriers within a Physical Resource Block (PRB), the backhaul link is an X2 interface, the high-power transmission point is a MaCro-Node (MCN) evolved Node B (eNodeB), and the low-power transmission point is one of a micro cell, a pico cell, a femto cell, a home eNodeB cell (HeNB), a Remote Radio Head (RRH), a Remote Radio Equipment (RRE), and a repeater.

12. The device of claim 8, wherein the distinction module provides information distinguishing the facilitating transmission point by providing one of a virtual cell identification and an index value corresponding to a transmit point index, wherein the virtual cell identification and the index value uniquely identify the facilitating transmission point among a coordinated set of transmission points, wherein the coordinated set of transmission points is defined by an ability to coordinate transmission activities between member transmission points in the coordinated set of transmission points.

13. The device of claim 8, further comprising a normalization module configured to normalize a power level of a resource block for the facilitating transmission point in terms of a maximum power for a highest power transmission point in the CoMP cluster, wherein the CoMP cluster provides an ability to coordinate transmission activities between member transmission points in the the CoMP cluster.

14. The device of claim 8, further comprising a threshold module configured to determine one of a first threshold level for the RNTP message from the facilitating transmission point where the facilitating transmission point corresponds to a relatively high-power level and a second threshold for the RNTP message where the facilitating transmission point corresponds to a relatively low-power level.