WO2017105408A1 - Catégorisation d'équipement utilisateur (ue) et stratégie de sélection de bande en vue d'une réutilisation de fréquence fractionnelle dans un système duplex intégral - Google Patents

Catégorisation d'équipement utilisateur (ue) et stratégie de sélection de bande en vue d'une réutilisation de fréquence fractionnelle dans un système duplex intégral Download PDF

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Publication number
WO2017105408A1
WO2017105408A1 PCT/US2015/065773 US2015065773W WO2017105408A1 WO 2017105408 A1 WO2017105408 A1 WO 2017105408A1 US 2015065773 W US2015065773 W US 2015065773W WO 2017105408 A1 WO2017105408 A1 WO 2017105408A1
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WIPO (PCT)
Prior art keywords
enodeb
neighboring
interference
usage frequency
transmission
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PCT/US2015/065773
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English (en)
Inventor
Shu-Ping Yeh
Yang-Seok Choi
Shilpa Talwar
Ping Wang
Feng Xue
Konstantinos D. DIMOU
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Intel IP Corporation
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Priority to PCT/US2015/065773 priority Critical patent/WO2017105408A1/fr
Publication of WO2017105408A1 publication Critical patent/WO2017105408A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/541—Allocation or scheduling criteria for wireless resources based on quality criteria using the level of interference
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality

Definitions

  • the present disclosure relates to full-duplex wireless communication systems and, in particular to a method for user equipment (UE) categorization and band selection in full-duplex wireless communication systems.
  • UE user equipment
  • Capacity in wireless communication networks is generally limited by the radio spectrum available. The capacity of a wireless communication network, therefore, depends on efficient use of the available radio spectrum.
  • Traditionally, cellular systems utilize half-duplex operation where orthogonal radio resources (orthogonal in time or in frequency) are allocated for downlink (from base station (BS) to user equipment (UE)) and uplink (from UE to BS) transmissions.
  • Full-duplex systems allow simultaneous transmit and receive (STR) in the same frequency band at the same time, which increases the physical layer capacity.
  • an uplink (UL) signal from the UE may interfere with downlink (DL) signals intended for nearby UEs, and a DL signal to the UE may be corrupted by proximate UL signals from nearby UEs.
  • DL downlink
  • any proximate UE pairs may interfere with each other resulting in loss of DL capacity.
  • Fig. 1 depicts an example implementation of frequency planning in accordance with fractional frequency reuse, in a full-duplex cellular system, according to one embodiment of the disclosure.
  • Fig. 2 depicts a table which shows a detailed categorization of UEs, band selection strategy and frequency planning, according to one embodiment of the disclosure.
  • Fig. 3a depicts a table which shows a detailed categorization and band assignment of UE with DL only traffic and frequency planning of the cellular network, according to one embodiment of the disclosure.
  • Fig. 3b depicts a table which shows a detailed categorization and band assignment of UE with UL only traffic and frequency planning of the cellular network, according to one embodiment of the disclosure.
  • Fig. 4a depicts a table which shows a UE band assignment with no awareness of UE cross-cell interference, according to one embodiment of the disclosure.
  • Fig. 4b depicts a table which shows a UE band assignment with no awareness of UE cross-cell interference and having additional information available to identify low- risk interfering UEs, according to one embodiment of the disclosure.
  • Fig. 5a depicts a table which shows a UE band assignment with victim-only awareness of UE cross-cell interference, according to one embodiment of the disclosure.
  • Fig. 5b depicts a table which shows a UE band assignment with victim-only awareness of UE cross-cell interference and having additional information available to identify low-risk interfering UEs, according to one embodiment of the disclosure.
  • Fig. 6 illustrates a block diagram of an apparatus for use in an Evolved NodeB (eNB) in a cellular network that facilitates a user equipment (UE) band selection, according to various embodiments of the disclosure.
  • eNB Evolved NodeB
  • UE user equipment
  • FIG. 7 illustrates a block diagram of an apparatus for use in a user equipment (UE) in a cellular network, according to various embodiments of the disclosure.
  • UE user equipment
  • Fig. 8 illustrates a flow chart for a method that facilitates a user equipment (UE) band selection in an Evolved NodeB (eNB) in a cellular network, according to various embodiments of the disclosure.
  • UE user equipment
  • eNB Evolved NodeB
  • Fig. 9 illustrates a flow chart for a method that facilitates interference reporting in a user equipment (UE) in a cellular network for UE band selection, according to various embodiments of the disclosure.
  • Fig. 1 0 illustrates, for , example components of a User Equipment (UE) device 1000, according to one embodiment of the disclosure.
  • UE User Equipment
  • an apparatus for use in an eNodeB of a cellular network comprising a plurality of eNodeBs.
  • the apparatus comprises a memory circuit configured to store a predetermined frequency planning profile of the cellular network, wherein the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands.
  • DL downlink
  • UL uplink
  • the apparatus further comprises a transmit circuit configured to transmit an interference report request and the predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB and a receive circuit configured to receive an interference profile from the UE in response to the interference report request.
  • the apparatus comprises a processing circuit operably coupled to the receive circuit and configured to selectively schedule the UE to perform transmission in the DL centric zone or the UL centric zone or both of each of the prioritized usage frequency bands, based on the interference profile from the UE.
  • a computer-readable storage device stores computer-executable instructions that, in response to execution, cause an eNodeB of a cellular network comprising a plurality of eNodeBs to receive and store a predetermined frequency planning profile of the cellular network.
  • the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands.
  • the computer executable instructions cause the eNodeB to transmit an interference report request and the predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB and receive an interference profile from the UE in response to the interference report request.
  • UE user equipment
  • the computer executable instructions cause the eNodeB to schedule the UE to perform both uplink (UL) transmission and downlink (DL) transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of the eNodeB, and selectively schedule the UE to perform a UL transmission or a DL transmission or both in the DL centric zone or the UL centric zone or both, respectively of the priority usage frequency bands of the one or more neighboring eNodeBs, based on the interference profile from the UE.
  • UL uplink
  • DL downlink
  • the term "DL transmission” for the UE indicates a reception of data at the UE from the eNodeB and the term “UL transmission” for the UE indicates a transmission of data from the UE to the eNodeB.
  • an apparatus for use in a user equipment (UE) in a cellular network comprising a plurality of eNodeBs.
  • the apparatus comprises a receive circuit configured to receive an interference report request and a predetermined frequency planning profile of the cellular network, from an eNodeB in a serving cell of the UE and receive interference information from one or more neighboring cell UEs.
  • the apparatus comprises a memory circuit configured to store the interference information, a processing circuit configured to determine an interference profile based on the interference information and the received predetermined frequency planning profile from the eNodeB, and a transmit circuit configured to transmit the determined interference profile to the eNodeB.
  • a computer-readable storage device storing computer-executable instructions that, in response to execution, cause a user equipment (UE) in a cellular network comprising a plurality of eNodeBs to receive an interference report request and a predetermined frequency planning profile of the cellular network, from an eNodeB in a serving cell of the UE and receive interference information from one or more neighboring cell UEs. Further, the computer executable instructions cause the UE to store the interference information in a memory circuit, determine an interference profile based on the interference information and the received predetermined frequency planning profile from the eNodeB and transmit the determined interference profile to the eNodeB.
  • UE user equipment
  • a component can be a processor (e.g., a microprocessor, a controller, or other processing device), a process running on a processor, a controller, an object, an executable, a program, a storage device, a computer, a tablet PC and/or a user equipment (e.g., mobile phone, etc.) with a processing device.
  • a processor e.g., a microprocessor, a controller, or other processing device
  • a process running on a processor e.g., a microprocessor, a controller, or other processing device
  • an object running on a server and the server
  • a user equipment e.g., mobile phone, etc.
  • an application running on a server and the server can also be a component.
  • One or more components can reside within a process, and a component can be localized on one computer and/or distributed between two or more computers.
  • a set of elements or a set of other components can be described herein, in which the term "set"
  • these components can execute from various computer readable storage media having various data structures stored thereon such as with a module, for example.
  • the components can communicate via local and/or remote processes such as in accordance with a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network, such as, the Internet, a local area network, a wide area network, or similar network with other systems via the signal).
  • a signal having one or more data packets (e.g., data from one component interacting with another component in a local system, distributed system, and/or across a network, such as, the Internet, a local area network, a wide area network, or similar network with other systems via the signal).
  • a component can be an apparatus with specific functionality provided by mechanical parts operated by electric or electronic circuitry, in which the electric or electronic circuitry can be operated by a software application or a firmware application executed by one or more processors.
  • the one or more processors can be internal or external to the apparatus and can execute at least a part of the software or firmware application.
  • a component can be an apparatus that provides specific functionality through electronic components without mechanical parts; the electronic components can include one or more processors therein to execute software and/or firmware that confer(s), at least in part, the functionality of the electronic components.
  • Radio resource management is the system level control of co-channel interference and other radio transmission
  • a frequency planning strategy by applying fractional frequency reuse (FFR) with the introduction of additional DL-centric zones and UL-centric zones is proposed.
  • FFR fractional frequency reuse
  • the UE-to-UE interference problem is minimized via intelligently scheduling the UEs so that UE pairs causing strong UE-to-UE interference are not scheduled at the same radio resource block (RB).
  • RB radio resource block
  • a base station or an eNodeB is assigned a prioritized usage frequency band, which is orthogonal to the prioritized usage frequency bands of its neighboring base stations.
  • An eNodeB is configured to serve an area referred to as a serving cell of the eNodeB.
  • the UE band selection is achieved by assigning the UEs who suffer or cause strong UE-to-UE interference to transmit on the prioritized usage frequency band of its serving cells and assigning the UEs not experiencing strong UE-to-UE interference to transmit on all bands.
  • UE With UE capability to detect interference and distinguishing the interfering UE identity, UE only needs to avoid using the priority usage frequency bands of interfering neighbor cell UEs and can share access to frequency bands other than the prioritized usage frequency bands of the interfering neighbor cell UEs with the interfering neighbor cell UEs.
  • the UE should avoid uplink (UL) transmission on the priority usage frequency band of the neighbor UE; for a UE receiving strong interference from a neighbor cell UE, the UE should avoid downlink (DL) transmission on the priority usage frequency band of the neighbor UE. If the UE both causes and receives strong interference to/from neighbor cell UEs on the same priority band, the UE should avoid transmission on the priority band entirely. For a UE experiencing strong neighboring cell interference in one band but neither causing nor receiving strong interference on another priority band of neighbor cells, the prioritized band (with no interference with current UE) is further categorized into sub bands of DL-centric and UL-centric zones.
  • DL transmission is always allowed in the DL-centric zone and UL transmission is always allowed in the UL-centric zone if the UE experiences no interference in this priority usage frequency band.
  • the UE should avoid using the DL-centric zone for UL transmission if the UE is causing high interference and avoid using the UL-centric zone for DL transmission if the UE is receiving high interference.
  • the UE should be able to detect the neighbor cell UE interference power level.
  • the frequency planning concept combining fractional frequency reuse, a DL centric zone and a UL centric zone, and the band selection strategy of UEs for different levels of interference awareness is proposed.
  • the different levels of interference awareness include, for example, full knowledge of interference, no knowledge of interference and victim-only awareness of interference.
  • Fig. 1 depicts an example implementation of frequency planning 100 in accordance with fractional frequency reuse, in a full-duplex cellular system, according to one embodiment of the disclosure.
  • a 3-sector cellular deployment with reuse of 3 in prioritized bands is illustrated to describe how the frequency planning can be accomplished.
  • the 3-sector cellular deployment 100 comprises a plurality of cells or sectors 1 , 2 and 3 with a reuse of 3, and each having a base station or eNodeB associated therewith.
  • Each cell has a prioritized usage band associated therewith corresponding to a prioritized usage frequency band of the base station. For example, in Fig.
  • the cells marked as 1 have a band 1 as their prioritized usage frequency band
  • cells marked as 2 have a band 2 as their prioritized usage frequency band
  • cells marked as 3 have a band 3 as their prioritized usage frequency band.
  • the bands 1 , 2 and 3 are orthogonal to one another.
  • all UEs can use their prioritized usage frequency bands for full-duplex transmission, however, using the prioritized usage frequency bands of neighboring cells for transmission depends on the UE's interference scenarios.
  • the UE is allowed to do transmission in both uplink and downlink directions.
  • a first type of user includes UE A, which is neither an aggressor nor a victim (with respect to interference) to UEs in the neighboring sectors (or cells). In such cases, the UE A can be scheduled for full-duplex transmission in all the available prioritized usage frequency bands, that is, band 1 , band 2 and band 3, respectively.
  • an aggressor UE causes interference to neighboring cell UEs and a victim UE receives interference from neighboring cell UEs.
  • a second type of user includes UE B, which interferes with UEs in only one neighboring cell, that is cell 120 having band 3 as its prioritized usage frequency band.
  • a third type of user includes UE C, which interferes with UEs in cell 130 having band 2 as its prioritized usage frequency band and cell 140 having band 3 as its prioritized usage frequency band. Therefore, UE C cannot be scheduled for full-duplex transmission in band 2 and band 3, and can be scheduled for full-duplex transmission only in band 1 .
  • more aggressive frequency planning can be done by having a full awareness of cross-cell UE interference.
  • the UEs can be categorized as aggressor to a neighboring UE or a victim to a neighboring UE based on their interference measurement to/from other UEs in neighboring sectors.
  • a UE if a UE is an aggressor to its neighbor cell UE, it should avoid uplink (UL) transmission in the prioritized usage frequency band for that neighbor cell UE and if a UE is a victim of its neighbor cell UE, it should avoid downlink (DL) transmission in the prioritized usage frequency band for that neighbor cell UE.
  • UL uplink
  • DL downlink
  • the UE B only needs to avoid UL transmission in the priority usage frequency band, i.e., band 3, of the neighboring cell 120 and can use this band for DL transmission.
  • the UE B should avoid DL transmission on the priority usage frequency band, i.e., band 3, of the neighboring cell 120 and can use this band for UL transmission.
  • the UE B is both a victim and an aggressor to the UE in cell 120. In such embodiments, DL or UL transmission in the priority usage frequency band, that is, band 3 of the neighboring cell 120 is precluded.
  • neighboring cells/base stations that are not interfered by the UE B are further divided into a DL-centric zone and a UL-centric zone.
  • An aggressor UE should avoid UL transmission in the DL-centric zone and a victim UE should avoid DL transmission in the UL-centric zone for the priority usage frequency bands of neighbor stations with no interfering UEs. For example, if UE B is an aggressor UE to band 3 and does not cause or receive interference to/from UEs in band 2, then UE B can do DL transmission in the DL-centric zone and full-duplex transmission in the UL-centric zone of band 2.
  • UE B can do UL transmission in the UL-centric zone and full-duplex transmission in the DL-centric zone of band 2.
  • Fig. 2 depicts a table 200 which shows a detailed categorization of UEs, band selection strategy and frequency planning, according to one embodiment of the disclosure.
  • the UE categorization and frequency planning is described herein with reference to the 3-sector deployment as explained above with respect to Fig. 1 .
  • Fig. 2 depicts the UE categorization and band selection strategy for sector 1 UEs (e.g., cell 1 UEs in Fig. 1 ), having both downlink (DL) and uplink (UL) traffic, assuming full awareness of cross-cell UE interference. Further, each of the available priority usage frequency bands, that is, band 1 , band 2 and band 3 is divided into a DL- centric zone and a UL-centric zone.
  • 1 D and 1 U denote the DL-centric zone and the UL-centric zone for band 1
  • 2D and 2U denote the DL-centric zone and the UL-centric zone for band 2
  • 3D and 3U denote the DL-centric zone and the UL-centric zone for band 3.
  • ⁇ indicates that interference power is received from sector i
  • Si > indicates that interference power is directed towards sector i.
  • the TH in the table 200 denotes the interference power level threshold to categorize a UE as an aggressor or a victim. For, example, if S
  • the threshold TH can be computed based on a predefined tolerable interference power level, and in other embodiments, the threshold TH can be computed based on the SINR requirement for message decoding of the UE.
  • a UE is categorized as a victim or an aggressor if the UE observes an interference power level above the pre-defined threshold or if other UEs report or experience interference from this UE a power level that exceeds the pre-defined threshold.
  • the SINR threshold is translated into the tolerable interference power level and the categorization of strong aggressor/victim can be done in the same manner as described above.
  • the translation of the SINR threshold and the interference power level can be performed as shown below:
  • the tolerable interference power level from neighbor UEs can be computed.
  • sector 1 UE is not a victim or an aggressor to the UEs in sector 2 and sector 3 respectively. Therefore, the sector 1 UE is allowed to do full-duplex (i.e., both DL and UL) transmission in all the available priority usage frequency bands, that is band 1 , band 2 and band 3
  • Row 220 shows another example, wherein sector 1 UE is a victim of sector 2 UE and does not cause or receive interference from sector 3 UEs.
  • the sector 1 UE is allowed to perform full-duplex transmission only in band 1 .
  • band 2 the sector 1 UE is allowed to perform only UL transmission and in band 3, the sector 1 UE is allowed to perform both UL and DL transmission in the DL-centric zone and only UL transmission in the UL-centric zone.
  • the sector 1 UE is both a victim and an aggressor to sector 3 UE. In this case, the sector 1 UE is allowed to perform full-duplex transmission only in band 1 .
  • the examples given above give a list of the permitted priority usage frequency bands for transmission for the sector 1 UE.
  • sector 1 UE is not a victim or an aggressor to the UEs in sector 2 and sector 3 respectively. Therefore, the sector 1 UE is allowed to do full- duplex (i.e., both DL and UL) transmission in all the available priority usage frequency bands, that is band 1 , band 2 and band 3 respectively. Therefore, in one embodiment, an eNodeB associated with the sector or cell 1 , can selectively schedule the sector 1 UE to perform both UL transmission and DL transmission in band 1 , band 2 and band 3 respectively.
  • the eNodeB associated with the sector or cell 1 can selectively schedule the sector 1 UE to perform UL-only or DL-only or full- duplex (both DL and UL) transmission based on other factors, for example, a scheduling decision of the eNodeB.
  • sector 1 UE is a victim of sector 2 UE and does not cause or receive interference from sector 3 UEs.
  • the sector 1 UE is allowed to perform full-duplex transmission in band 1 .
  • band 2 the sector 1 UE is allowed to perform only UL transmission and in band 3, the sector 1 UE is allowed to perform both UL and DL transmission in the DL-centric zone and only UL transmission in the UL-centric zone.
  • the eNodeB associated with the sector or cell 1 can selectively schedule the sector 1 UE to perform full-duplex (both DL and UL) transmission in band 1 , however, in other embodiments the eNodeB can schedule the sector 1 UE to perform UL-only or DL-only transmission in band 1 , based on the scheduling decision of the eNodeB. Similarly, in one
  • the eNodeB can selectively schedule the sector 1 UE to perform UL transmission in band 2, however, in other embodiments, the eNodeB can choose the sector 1 UE not to perform any transmission in band 2, based on the scheduling decision of the eNodeB.
  • Fig. 3a depicts a table 300 which shows a detailed categorization of UE with DL only traffic and frequency planning.
  • the frequency planning described herein is similar to the 3-sector deployment explained above with respect to Fig. 1 .
  • Fig. 3a depicts the UE categorization and band selection strategy for sector 1 UEs (e.g., cell 1 UEs in Fig. 1 ), having only downlink (DL) traffic, assuming full awareness of cross-cell UE interference.
  • the sector 1 UE is not a victim to the UEs in sector 2 and sector 3 respectively.
  • the sector 1 UE is allowed to do DL transmission in all the available priority usage frequency bands, that is band 1 , band 2 and band 3 respectively. Further, in the embodiment shown in row 320, the sector 1 UE is a victim to the sector 2 UE. The sector 1 UE is therefore not allowed to do transmission in the priority usage frequency band of sector 2, that is band 2. Further, in band 3, the sector 1 UE is allowed to do DL transmission in the DL-centric zone and no transmission in the UL-centric zone. Other combinations of interferences listed in the table 300 in Fig. 3a can be explained using the same concept above.
  • Fig. 3b depicts a table 301 , which shows a detailed categorization of UE with UL only traffic and frequency planning.
  • the frequency planning described herein is similar to the 3-sector deployment explained above with respect to Fig. 1 .
  • Fig. 3b depicts the UE categorization and band selection strategy for sector 1 UEs (e.g., cell 1 UEs in Fig. 1 ), having only uplink (UL) traffic, assuming full awareness of cross-cell UE interference.
  • the sector 1 UE is not an aggressor to the UEs in sector 2 and sector 3 respectively.
  • the sector 1 UE is allowed to do UL transmission in all the available priority usage frequency bands, that is band 1 , band 2 and band 3 respectively. Further, in the embodiment shown in row 360, the sector 1 UE is an aggressor to the sector 2 UE. The sector 1 UE is therefore not allowed to do transmission in the priority usage frequency band of sector 2, that is band 2. Further, in band 3, the sector 1 UE is allowed to do UL transmission in the UL-centric zone and no transmission in the DL-centric zone. Other combinations of interferences listed in the table 301 in Fig. 3b can be explained using the same concept above.
  • Fig. 4a depicts a table 400 which shows a UE band assignment with no awareness of UE cross-cell interference, according to one embodiment of the disclosure.
  • the frequency planning described herein is similar to the 3-sector deployment explained above with respect to Fig. 1 .
  • a UE cannot detect if the UE is causing or receiving interference to/from the neighboring cell UEs.
  • the sector 1 UE cannot detect if it is causing or receiving interference to/from the sector 2 UEs and sector 3 UEs respectively. In such
  • full-duplex transmission is performed only in band 1 and no transmission is performed in band 2 and band 3 respectively.
  • additional information available for example, location information or the local channel measurement from eNodeB and neighboring eNodeBs
  • UEs with low risk interfering with neighboring cell UEs can be identified.
  • full-duplex transmission can be allowed in all the available priority usage frequency bands, that is, band 1 , band 2 and band 3 respectively, as shown in row 450 of table 401 in Fig. 4b.
  • Fig. 5a depicts a table 500 which shows a UE band assignment with victim- only awareness of UE cross-cell interference, according to one embodiment of the disclosure.
  • the frequency planning described herein is similar to the 3-sector deployment explained above with respect to Fig. 1 .
  • a UE can detect neighboring cell UEs causing strong interference and can distinguish which is the priority usage frequency band of the interfering UEs, but is not able to identify the UE ID or to communicate between base-stations the aggressor UE list, one can do the frequency planning in a 'victim-aware' sense. In this case, no transmission is allowed for priority usage frequency bands of the strong interferers and only the local priority band can be used for full-duplex usage. For bands of neighbor cells with no strong interference, DL transmission can be scheduled in those bands.
  • sector 1 UE is not a victim to sector 2 and sector 3 UEs, however, it is not able to identify if the sector 1 UE is an aggressor to sector 2 and sector 3 UEs. Therefore, the sector 1 UE is allowed to do full-duplex transmission only in band 1 . In bands 2 and 3, the sector 1 UE is allowed to do only DL transmission. In row 520 of table 500 in Fig 5a, it is identified that the sector 1 UE is a victim to the sector 2 UE. Therefore, the sector 1 UE is not allowed to transmit in the priority usage frequency band of sector 2 and is allowed to do DL transmission in the priority usage frequency band of sector 3.
  • Sector 1 UE is allowed to perform full-duplex transmission only in band 1 .
  • additional information available for example, location information or the local channel measurement from BS and neighboring BSs
  • UEs with low risk interfering with neighboring cell UEs can be identified.
  • full-duplex transmission can be allowed in all the available priority usage frequency bands, that is, band 1 , band 2 and band 3 respectively, as shown in row 550 of table 501 in Fig. 5b.
  • Other combinations of interferences listed in the tables in Figs. 5a and 5b can be explained using the same concept above.
  • Fig. 6 illustrates a block diagram of an apparatus 600 for use in an Evolved NodeB (eNB) in a cellular network that facilitates a user equipment (UE) band selection, according to various embodiments described herein.
  • the cellular network comprises a plurality of cells/sectors each having a base station (BS) or an eNodeB associated therewith.
  • the apparatus 600 can include a transmitter circuit 610, a receiver circuit 620 and a processor 630. Each of the receiver circuit 620 and the transmitter circuit 610 are configured to be coupled to one or more antennas, which can be the same or different antenna(s). Further, in some embodiments, the apparatus comprises a memory circuit 640 coupled to the processor 630.
  • the memory circuit 640 comprises a computer readable storage device that includes instructions to be executed by the processor 630.
  • the memory circuit 640 can be an independent circuit and in other embodiments, the memory circuit 640 can be integrated on chip with the processor 630.
  • the instructions to be executed by the processor 630 can be stored on a non-transitory storage medium like CR-ROM, flash drive etc., and can be downloaded to the memory circuit 640 for execution.
  • the receiver circuit 620 and the transmitter circuit 61 0 can have one or more components in common, and both can be included within a transceiver circuit, while in other aspects they are not.
  • the apparatus 600 can be included within an Evolved Universal
  • E-UTRAN Terrestrial Radio Access Network
  • Node B Evolved NodeB, eNodeB, or eNB.
  • the transmit circuit 610 is configured to transmit an interference report request and a predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB.
  • UE user equipment
  • interference report request is sent periodically to the UE, however, in other words
  • the interference report request is sent randomly.
  • the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands, similar to the frequency planning profile indicated in Fig. 1 .
  • the frequency planning profile comprises a 3-sector deployment with a reuse of 3, however, in other embodiments, different deployments and different reuse factors could be used.
  • the one or more neighboring cells of the "eNodeB of interest" includes the neighboring eNodeBs having a priority usage frequency band different from the priority usage frequency band of the "eNodeB of interest” based on the deployment scenario and the reuse factor.
  • the predetermined frequency planning profile is determined based on a knowledge of an uplink traffic and a downlink traffic in the network over a period of time. In some embodiments, the predetermined frequency planning profile is determined in a network controller based on network traffic conditions over a period of time, among other factors. In some embodiments, the network controller could be a part of the eNodeB, however, in other embodiments, the network controller can be a standalone control circuit. In some embodiments, the memory circuit 640 is configured to receive and store the predetermined frequency planning profile before transmitting the predetermined frequency planning profile to the UE.
  • the receiver circuit 620 in Fig. 6 is configured to receive an interference profile from the UE in response to the interference report request.
  • the interference profile comprises information on the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is a victim or an aggressor or both, and the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is neither an aggressor nor a victim, or both.
  • the processing circuit 630 is operably coupled to the receiver circuit 620 and is configured to selectively schedule the UE to perform transmission in the DL centric zone or the UL centric zone or both of each of the priority usage frequency bands, based on the interference profile received from the UE.
  • the processing circuit 630 is configured to schedule the UE based on the UE categorization and band assignment strategies given in table 200 in Fig. 2. Further, in some embodiments, the processing circuit 630 is configured to schedule the UE based on the UE categorization and band assignment strategies given in table 300 in Fig. 3a, when the UE has only DL traffic and based on table 301 in Fig. 3b, when the UE has only UL traffic.
  • the processing circuit 630 is configured to schedule the UE based on the UE categorization and band assignment strategies given in tables 400, 401 , 500 and 501 , respectively based on the interference awareness level.
  • the processing circuit 630 is further configured to schedule the UE based on a scheduling decision of the eNodeB, in addition to the UE categorization and band selection strategies above. For example, for a UE with full- duplex capability (i.e., both UL-traffic and DL-traffic), the processing circuit 630 of the eNodeB can choose to schedule the UE for UL-only transmission or DL-only
  • the processing circuit 630 of the eNodeB can choose to schedule the UE for UL-only transmission or DL-only
  • the scheduling decision of the eNodeB is determined at the network controller. However, in some embodiments, the scheduling decision of the UE is determined at the eNodeB itself.
  • Fig. 7 illustrates a block diagram of an apparatus 700 for use in a user equipment (UE) in a cellular network, according to various embodiments described herein.
  • the apparatus 700 includes a receiver circuit 710, a processor 730, and a transmitter circuit 720. Further, in some embodiments, the apparatus comprises a memory circuit 740 coupled to the processor 730.
  • the memory circuit 740 comprises a computer readable storage device that includes instructions to be executed by the processor 730.
  • the memory circuit 740 can be an independent circuit and in other embodiments, the memory circuit 740 can be integrated on chip with the processor 730.
  • the instructions to be executed by the processor 730 can be stored on a non-transitory storage medium like CR-ROM, flash drive etc., and can be downloaded to the memory circuit 740 for execution.
  • Each of the receiver circuit 710 and the transmitter circuit 720 are configured to be coupled to one or more antennas, which can be the same or different antenna(s).
  • the receiver circuit 710 and transmitter circuit 730 can have one or more components in common, and both can be included within a transceiver circuit, while in other aspects they are not.
  • the apparatus 700 can be included within a UE, for example, with apparatus 700 (or portions thereof) within a receiver and transmitter or a transceiver circuit of a UE.
  • the receiver circuit 71 0 is configured to receive an interference report request and a predetermined frequency planning profile of the cellular network, from an eNodeB associated with a serving cell of the UE.
  • the predetermined frequency planning profile is the same as the predetermined frequency planning profile explained above with respect to Fig. 6.
  • the receiver circuit 710 is configured to receive interference information from one or more neighboring cell UEs.
  • the memory circuit 740 is configured to store the interference information.
  • the memory circuit 740 is coupled to the processing circuit 730 and the processing circuit 730 is configured to determine an interference profile based on the interference information and the received predetermined frequency planning profile from the eNodeB.
  • the interference profile comprises information on the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is a victim or an aggressor or both, or the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is neither an aggressor nor a victim, or both.
  • the interference profile is the same as the interference profile explained above with respect to Fig. 6.
  • the UE is categorized as a victim on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs when the UE receives an interference power level above a predetermined threshold power level from a UE in a serving cell of the neighboring eNodeB.
  • the UE is categorized as an aggressor on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs when the UE creates an interference power level above a predetermined threshold power level to a UE in a serving cell of the neighboring eNodeB.
  • Fig. 8 illustrates a flow chart for a method 800 that facilitates a user equipment (UE) band selection in an Evolved NodeB (eNB) in a cellular network, according to various embodiments described herein.
  • the method 800 is described herein with reference to the apparatus 600 in Fig. 6.
  • a predetermined frequency planning profile of the cellular network is received and stored at the memory circuit 640 of an eNodeB.
  • an interference report request and the predetermined frequency planning profile are transmitted from the transmit circuit 61 0 of the eNodeB to a user equipment (UE) in a serving cell of the eNodeB.
  • an interference profile is received at the receive circuit 620 of the eNodeB from the UE in response to the interference report request.
  • the UE is selectively scheduled to perform an uplink (UL) transmission and a downlink (DL) transmission in the priority usage frequency band of the eNodeB at the processing circuit 630, based on the interference profile from the UE.
  • the processing circuit 630 also selectively schedules the UE to perform a UL transmission or a DL transmission or both in the DL centric zone or the UL centric zone or both of the priority usage frequency bands of the one or more neighboring eNodeBs, based on the interference profile from the UE.
  • the processing circuit 630 can schedule the UE to perform a DL-only transmission or a UL-only transmission in the prioritized usage frequency band of the eNodeB based on a scheduling decision of the eNodeB.
  • Fig. 9 illustrates a flow chart for a method 900 that facilitates interference reporting in a user equipment (UE) in a cellular network for UE band selection, according to various embodiments described herein.
  • the method 900 is described herein with reference to the apparatus 700 in Fig. 7.
  • an interference report request and a predetermined frequency planning profile of the cellular network is received at the receiver circuit 710 of the UE from an eNodeB in a serving cell of the UE.
  • the receiver circuit 710 further receives interference information from one or more neighboring cell UEs.
  • the interference information is stored in the memory circuit 740 of the UE.
  • an interference profile is determined based on the interference information and the received predetermined frequency planning profile from the eNodeB, at the processing circuit 730.
  • the determined interference profile is transmitted to the eNodeB by the transmit circuit 720 of the UE.
  • Fig. 10 illustrates, for one embodiment, example components of a User Equipment (UE) device 1000.
  • the UE device 1000 may include application circuitry 1002, baseband circuitry 1 004, Radio Frequency (RF) circuitry 1006, front-end module (FEM) circuitry 1008 and one or more antennas 1010, coupled together at least as shown.
  • RF Radio Frequency
  • FEM front-end module
  • the application circuitry 1002 may include one or more application processors.
  • the application circuitry 1002 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the processor(s) may include any combination of general-purpose processors and dedicated processors (e.g., graphics processors, application processors, etc.).
  • the processors may be coupled with and/or may include memory/storage and may be configured to execute instructions stored in the memory/storage to enable various applications and/or operating systems to run on the system.
  • the baseband circuitry 1004 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • the baseband circuitry 1004 may include one or more baseband processors and/or control logic to process baseband signals received from a receive signal path of the RF circuitry 1006 and to generate baseband signals for a transmit signal path of the RF circuitry 1006.
  • Baseband processing circuity 1004 may interface with the application circuitry 1002 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 1006.
  • the baseband circuitry 1004 may include a second generation (2G) baseband processor 1004a, third generation (3G) baseband processor 1004b, fourth generation (4G) baseband processor 1004c, and/or other baseband processor(s) 1004d for other existing generations, generations in
  • the baseband circuitry 1004 may handle various radio control functions that enable communication with one or more radio networks via the RF circuitry 1006.
  • the radio control functions may include, but are not limited to, signal modulation/demodulation, encoding/decoding, radio frequency shifting, etc.
  • modulation/demodulation circuitry of the baseband circuitry 1004 may include Fast-Fourier Transform (FFT), precoding, and/or constellation mapping/demapping functionality.
  • FFT Fast-Fourier Transform
  • encoding/decoding circuitry of the baseband circuitry 1004 may include convolution, tail- biting convolution, turbo, Viterbi, and/or Low Density Parity Check (LDPC)
  • LDPC Low Density Parity Check
  • Embodiments of modulation/demodulation and encoder/decoder functionality are not limited to these examples and may include other suitable functionality in other embodiments.
  • the baseband circuitry 1004 may include elements of a protocol stack such as, for example, elements of an evolved universal terrestrial radio access network (EUTRAN) protocol including, for example, physical (PHY), media access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP), and/or radio resource control (RRC) elements.
  • EUTRAN evolved universal terrestrial radio access network
  • a central processing unit (CPU) 1004e of the baseband circuitry 1004 may be configured to run elements of the protocol stack for signaling of the PHY, MAC, RLC, PDCP and/or RRC layers.
  • the baseband circuitry may include one or more audio digital signal processor(s) (DSP) 1004f.
  • DSP audio digital signal processor
  • the audio DSP(s) 1004f may be include elements for compression/decompression and echo cancellation and may include other suitable processing elements in other embodiments.
  • Components of the baseband circuitry may be suitably combined in a single chip, a single chipset, or disposed on a same circuit board in some embodiments.
  • some or all of the constituent components of the baseband circuitry 1004 and the application circuitry 1002 may be implemented together such as, for example, on a system on a chip (SOC).
  • SOC system on a chip
  • the baseband circuitry 1004 may provide for communication compatible with one or more radio technologies.
  • the baseband circuitry 1004 may support communication with an evolved universal terrestrial radio access network (EUTRAN) and/or other wireless metropolitan area networks (WMAN), a wireless local area network (WLAN), a wireless personal area network (WPAN).
  • EUTRAN evolved universal terrestrial radio access network
  • WMAN wireless metropolitan area networks
  • WLAN wireless local area network
  • WPAN wireless personal area network
  • RF circuitry 1006 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • the RF circuitry 1006 may include switches, filters, amplifiers, etc. to facilitate the communication with the wireless network.
  • RF circuitry 1006 may include a receive signal path which may include circuitry to down-convert RF signals received from the FEM circuitry 1008 and provide baseband signals to the baseband circuitry 1004.
  • RF circuitry 1006 may also include a transmit signal path which may include circuitry to up-convert baseband signals provided by the baseband circuitry 1004 and provide RF output signals to the FEM circuitry 1008 for transmission.
  • the RF circuitry 1006 may include a receive signal path and a transmit signal path.
  • the receive signal path of the RF circuitry 1006 may include mixer circuitry 1 006a, amplifier circuitry 1006b and filter circuitry 1006c.
  • the transmit signal path of the RF circuitry 1006 may include filter circuitry 1006c and mixer circuitry 1006a.
  • RF circuitry 1006 may also include synthesizer circuitry 1006d for synthesizing a frequency for use by the mixer circuitry 1006a of the receive signal path and the transmit signal path.
  • the mixer circuitry 1006a of the receive signal path may be configured to down-convert RF signals received from the FEM circuitry 1008 based on the synthesized frequency provided by synthesizer circuitry 1006d.
  • the amplifier circuitry 1006b may be configured to amplify the down-converted signals and the filter circuitry 1 006c may be a low-pass filter (LPF) or band-pass filter (BPF) configured to remove unwanted signals from the down-converted signals to generate output baseband signals.
  • Output baseband signals may be provided to the baseband circuitry 1004 for further processing.
  • the output baseband signals may be zero-frequency baseband signals, although this is not a requirement.
  • mixer circuitry 1006a of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • the mixer circuitry 1006a of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by the synthesizer circuitry 1006d to generate RF output signals for the FEM circuitry 1008.
  • the baseband signals may be provided by the baseband circuitry 1004 and may be filtered by filter circuitry 1006c.
  • the filter circuitry 1006c may include a low-pass filter (LPF), although the scope of the embodiments is not limited in this respect.
  • LPF low-pass filter
  • the mixer circuitry 1006a of the receive signal path and the mixer circuitry 1006a of the transmit signal path may include two or more mixers and may be arranged for quadrature downconversion and/or upconversion respectively.
  • the mixer circuitry 1006a of the receive signal path and the mixer circuitry 1006a of the transmit signal path may include two or more mixers and may be arranged for image rejection (e.g., Hartley image rejection).
  • the mixer circuitry 1 006a of the receive signal path and the mixer circuitry 1006a may be arranged for direct downconversion and/or direct upconversion, respectively.
  • the mixer circuitry 1006a of the receive signal path and the mixer circuitry 1006a of the transmit signal path may be configured for super-heterodyne operation.
  • the output baseband signals and the input baseband signals may be analog baseband signals, although the scope of the embodiments is not limited in this respect.
  • the output baseband signals and the input baseband signals may be digital baseband signals.
  • the RF circuitry 1006 may include analog-to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry and the baseband circuitry 1004 may include a digital baseband interface to communicate with the RF circuitry 1006.
  • ADC analog-to-digital converter
  • DAC digital-to-analog converter
  • a separate radio IC circuitry may be provided for processing signals for each spectrum, although the scope of the
  • the synthesizer circuitry 1006d may be a fractional-N synthesizer or a fractional N/N+1 synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable.
  • synthesizer circuitry 1006d may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.
  • the synthesizer circuitry 1006d may be configured to synthesize an output frequency for use by the mixer circuitry 1006a of the RF circuitry 1006 based on a frequency input and a divider control input.
  • the synthesizer circuitry 1006d may be a fractional N/N+1 synthesizer.
  • frequency input may be provided by a voltage controlled oscillator (VCO), although that is not a requirement.
  • VCO voltage controlled oscillator
  • Divider control input may be provided by either the baseband circuitry 1004 or the applications processor 1002 depending on the desired output frequency.
  • a divider control input (e.g., N) may be determined from a look-up table based on a channel indicated by the applications processor 1 002.
  • Synthesizer circuitry 1 006d of the RF circuitry 1 006 may include a divider, a delay-locked loop (DLL), a multiplexer and a phase accumulator.
  • the divider may be a dual modulus divider (DMD) and the phase accumulator may be a digital phase accumulator (DPA).
  • the DMD may be configured to divide the input signal by either N or N+1 (e.g., based on a carry out) to provide a fractional division ratio.
  • the DLL may include a set of cascaded, tunable, delay elements, a phase detector, a charge pump and a D-type flip- flop.
  • the delay elements may be configured to break a VCO period up into Nd equal packets of phase, where Nd is the number of delay elements in the delay line.
  • Nd is the number of delay elements in the delay line.
  • synthesizer circuitry 1 006d may be configured to generate a carrier frequency as the output frequency, while in other embodiments, the output frequency may be a multiple of the carrier frequency (e.g., twice the carrier frequency, four times the carrier frequency) and used in conjunction with quadrature generator and divider circuitry to generate multiple signals at the carrier frequency with multiple different phases with respect to each other.
  • the output frequency may be a LO frequency (fLO).
  • the RF circuitry 1006 may include an IQ/polar converter.
  • FEM circuitry 1008 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 1010, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 1006 for further processing.
  • FEM circuitry 1008 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by the RF circuitry 1006 for transmission by one or more of the one or more antennas 1010.
  • the FEM circuitry 1008 may include a TX/RX switch to switch between transmit mode and receive mode operation.
  • the FEM circuitry may include a receive signal path and a transmit signal path.
  • the receive signal path of the FEM circuitry may include a low-noise amplifier (LNA) to amplify received RF signals and provide the amplified received RF signals as an output (e.g., to the RF circuitry 1006).
  • LNA low-noise amplifier
  • the transmit signal path of the FEM circuitry 1 008 may include a power amplifier (PA) to amplify input RF signals (e.g., provided by RF circuitry 1006), and one or more filters to generate RF signals for subsequent transmission (e.g., by one or more of the one or more antennas 1010.
  • PA power amplifier
  • the UE device 1000 may include additional elements such as, for example, memory/storage, display, camera, sensor, and/or input/output (I/O) interface.
  • additional elements such as, for example, memory/storage, display, camera, sensor, and/or input/output (I/O) interface.
  • Examples can include subject matter such as a method, means for performing acts or blocks of the method, at least one machine-readable medium including instructions that, when performed by a machine cause the machine to perform acts of the method or of an apparatus or system for concurrent communication using multiple communication technologies according to embodiments and examples described herein.
  • Example 1 is an apparatus for use in an eNodeB of a cellular network comprising a plurality of eNodeBs, the apparatus comprising a memory circuit configured to store a predetermined frequency planning profile of the cellular network, wherein the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands; a transmit circuit configured to transmit an interference report request and the predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB; a receive circuit configured to receive an interference profile from the UE in response to the interference report request; and a processing circuit operably coupled to the receive circuit and configured to selectively schedule the UE to perform transmission in the DL centric zone or the UL centric zone or both of each of the prioritized usage
  • Example 2 is an apparatus including the subject matter of example 1 , wherein the prioritized usage frequency band of the eNodeB and the prioritized usage frequency bands of the one or more neighboring eNodeBs are orthogonal to one another.
  • Example 3 is an apparatus including the subject matter of examples 1 -2, including or omitting elements, wherein the predetermined frequency planning profile is determined at a network controller, based on a knowledge of an uplink traffic and a downlink traffic in the network over a period of time.
  • Example 4 is an apparatus including the subject matter of examples 1 -3, including or omitting elements, wherein the interference profile comprises information on the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is a victim or an aggressor or both, or the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is neither an aggressor nor a victim, or both.
  • Example 5 is an apparatus including the subject matter of examples 1 -4, including or omitting elements, wherein the UE is categorized as a victim on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs when the UE receives an interference power level above a predetermined threshold from a UE in a serving cell of the neighboring eNodeB.
  • Example 6 is an apparatus including the subject matter of examples 1 -5, including or omitting elements, wherein the UE is categorized as an aggressor on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs, when the UE creates an interference power level above a predetermined threshold to a UE in a serving cell of the neighboring eNodeB.
  • Example 7 is an apparatus including the subject matter of examples 1 -6, including or omitting elements, wherein selectively scheduling the UE transmission comprises scheduling the UE to perform an uplink (UL) transmission and a downlink (DL) transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of the eNodeB.
  • UL uplink
  • DL downlink
  • Example 8 is an apparatus including the subject matter of examples 1 -7, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform both uplink (UL) transmission and downlink (DL) transmission in the DL centric zone and the UL centric zone of the priority usage frequency bands of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is neither an aggressor nor a victim on the priority usage frequency bands of the one or more neighboring eNodeBs.
  • UL uplink
  • DL downlink
  • Example 9 is an apparatus including the subject matter of examples 1 -8, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform only UL transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of a first neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is a victim but not an aggressor on the priority usage frequency band of the first neighboring eNodeB.
  • Example 10 is an apparatus including the subject matter of examples 1 -9, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform both UL transmission and DL transmission in the DL centric zone, and only UL transmission in the UL centric zone of the priority usage frequency band of a second neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is neither an aggressor nor a victim on the priority usage frequency band of the second neighboring eNodeB, wherein the priority usage frequency band of the first neighboring eNodeB and the second neighboring eNodeB are different.
  • Example 1 1 is an apparatus including the subject matter of examples 1 -10, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform only DL transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of a first neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is an aggressor but not a victim on the priority usage frequency band of the first neighboring eNodeB.
  • Example 12 is an apparatus including the subject matter of examples 1 -1 1 , including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform both UL transmission and DL transmission in the UL centric zone, and only DL transmission in the DL centric zone of the priority usage frequency band of a second neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is neither an aggressor nor a victim on the priority usage frequency band of the second neighboring eNodeB, wherein the priority usage frequency band of the first neighboring eNodeB and the second neighboring eNodeB are different.
  • Example 13 is an apparatus including the subject matter of examples 1 -12, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform neither DL transmission nor UL transmission in both the DL centric zone and the UL centric zone of the priority usage frequency band of a first neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is an aggressor and a victim on the priority usage frequency band of the first neighboring eNodeB.
  • Example 14 is an apparatus including the subject matter of examples 1 -13, including or omitting elements, wherein selectively scheduling the UE transmission further comprises scheduling the UE to perform only UL transmission in the UL centric zone, and only DL transmission in the DL centric zone of the priority usage frequency band of a second neighboring eNodeB of the one or more neighboring eNodeBs, when the interference profile indicates that the UE is neither an aggressor nor a victim on the priority usage frequency band of the second neighboring eNodeB, wherein the priority usage frequency band of the first neighboring eNodeB and the second neighboring eNodeB are different.
  • Example 15 is computer-readable storage device storing computer- executable instructions that, in response to execution, cause an eNodeB of a cellular network comprising a plurality of eNodeBs to receive and store a predetermined frequency planning profile of the cellular network, wherein the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands; transmit an interference report request and the predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB; receive an interference profile from the UE in response to the interference report request; selectively schedule the UE to perform an uplink (UL) transmission and a downlink (DL) transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of the eNodeB,
  • Example 16 is a computer-readable storage device including the subject matter of example 15, wherein the interference report request is transmitted periodically to the UE.
  • Example 17 is a computer-readable storage device including the subject matter of example 15-16, including or omitting elements, wherein the interference report request is transmitted randomly to the UE.
  • Example 18 is an apparatus for use in a user equipment (UE) in a cellular network comprising a plurality of eNodeBs, comprising a receive circuit configured to receive an interference report request and a predetermined frequency planning profile of the cellular network, from an eNodeB in a serving cell of the UE; and receive interference information from one or more neighboring cell UEs; a memory circuit configured to store the interference information; a processing circuit configured to determine an interference profile based on the interference information and the received predetermined frequency planning profile from the eNodeB; and a transmit circuit configured to transmit the determined interference profile to the eNodeB.
  • UE user equipment
  • Example 19 is an apparatus including the subject matter of example 18, wherein the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB of the serving cell of the UE and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands.
  • the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB of the serving cell of the UE and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands.
  • DL downlink
  • UL uplink
  • Example 20 is an apparatus including the subject matter of examples 18-19, including or omitting elements, wherein the interference profile comprises information on the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is a victim or an aggressor or both, or the priority usage frequency bands of the one or more neighboring eNodeBs on which the UE is neither an aggressor nor a victim, or both.
  • Example 21 is an apparatus including the subject matter of examples 18-20, including or omitting elements, wherein the UE is categorized as a victim on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs when the UE receives an interference power level above a predetermined threshold power level from a UE in a serving cell of the neighboring eNodeB.
  • Example 22 is an apparatus including the subject matter of examples 18-21 , including or omitting elements, wherein the predetermined threshold power level is determined based on a signal to interference plus noise ratio (SINR) for message decoding of the UE.
  • SINR signal to interference plus noise ratio
  • Example 23 is an apparatus including the subject matter of examples 18-22, including or omitting elements, wherein the UE is categorized as an aggressor on a priority usage frequency band of a neighboring eNodeB of the one or more neighboring eNodeBs when the UE creates an interference power level above a predetermined threshold power level to a UE in a serving cell of the neighboring eNodeB.
  • Example 24 is an apparatus including the subject matter of examples 18-23, including or omitting elements, wherein the predetermined threshold power level is determined based on a signal to interference plus noise ratio (SINR) for message decoding of the UE.
  • SINR signal to interference plus noise ratio
  • Example 26 is a method for an eNodeB of a cellular network comprising a plurality of eNodeBs comprising receiving and storing a predetermined frequency planning profile of the cellular network, wherein the predetermined frequency planning profile comprises information on a priority usage frequency band of the eNodeB and priority usage frequency bands of one or more neighboring eNodeBs in accordance with a fractional frequency reuse scheme, and information on a downlink (DL) centric zone and an uplink (UL) centric zone within each of the priority usage frequency bands; transmitting an interference report request and the predetermined frequency planning profile to a user equipment (UE) in a serving cell of the eNodeB; receiving an interference profile from the UE in response to the interference report request;
  • UE user equipment
  • the UE selectively scheduling the UE to perform an uplink (UL) transmission and a downlink (DL) transmission in the DL centric zone and the UL centric zone of the priority usage frequency band of the eNodeB, based on the interference profile from the UE; and selectively scheduling the UE to perform a UL transmission or a DL transmission or both in the DL centric zone or the UL centric zone or both, respectively of the priority usage frequency bands of the one or more neighboring eNodeBs, based on the interference profile from the UE.
  • UL uplink
  • DL downlink
  • Example 27 is a computer-readable storage device storing computer- executable instructions that, in response to execution, cause an eNodeB of a cellular network comprising a plurality of eNodeBs to perform the method of claim 26.
  • Example 28 is a method for a user equipment (UE) in a cellular network comprising a plurality of eNodeBs comprising receiving an interference report request and a predetermined frequency planning profile of the cellular network, from an eNodeB in a serving cell of the UE; receiving interference information from one or more neighboring cell UEs; storing the interference information in a memory circuit;
  • UE user equipment
  • Example 29 is a computer-readable storage device storing computer- executable instructions that, in response to execution, cause a user equipment (UE) in a cellular network comprising a plurality of eNodeBs to perform the method of claim 28.
  • UE user equipment
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • a general-purpose processor can be a microprocessor, but, in the alternative, processor can be any conventional processor, controller, microcontroller, or state machine.

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Abstract

L'invention concerne un appareil destiné à être utilisé dans un nœud B évolué d'un réseau cellulaire comprenant une pluralité de nœuds B évolués, lequel appareil comprend un circuit de mémoire configuré pour stocker un profil de planification de fréquences prédéterminé du réseau cellulaire. L'appareil comprend en outre un circuit d'émission configuré pour émettre une requête de rapport de brouillage et le profil de planification de fréquences prédéterminé à un équipement utilisateur (UE) dans une cellule de desserte du nœud B évolué et un circuit de réception configuré pour recevoir un profil de brouillage en provenance de l'UE en réponse à la requête de rapport de brouillage. De plus, l'appareil comprend un circuit de traitement couplé fonctionnellement au circuit de réception configuré pour planifier de manière sélective l'UE afin de réaliser une émission dans la zone centrique de liaison descendante (DL) et/ou la zone centrique de liaison montante (UL) de chacune des bandes de fréquence d'utilisation priorisées, sur la base du profil de brouillage en provenance de l'UE.
PCT/US2015/065773 2015-12-15 2015-12-15 Catégorisation d'équipement utilisateur (ue) et stratégie de sélection de bande en vue d'une réutilisation de fréquence fractionnelle dans un système duplex intégral WO2017105408A1 (fr)

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PCT/US2015/065773 WO2017105408A1 (fr) 2015-12-15 2015-12-15 Catégorisation d'équipement utilisateur (ue) et stratégie de sélection de bande en vue d'une réutilisation de fréquence fractionnelle dans un système duplex intégral

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PCT/US2015/065773 WO2017105408A1 (fr) 2015-12-15 2015-12-15 Catégorisation d'équipement utilisateur (ue) et stratégie de sélection de bande en vue d'une réutilisation de fréquence fractionnelle dans un système duplex intégral

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CN112243222A (zh) * 2019-07-17 2021-01-19 大唐移动通信设备有限公司 一种mu-mimo多终端ue配对方法及装置
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CN110248415A (zh) * 2018-03-09 2019-09-17 华为技术有限公司 一种时隙格式指示方法、设备及系统
CN110248415B (zh) * 2018-03-09 2021-06-08 华为技术有限公司 一种时隙格式指示方法、设备及系统
CN112243222A (zh) * 2019-07-17 2021-01-19 大唐移动通信设备有限公司 一种mu-mimo多终端ue配对方法及装置
US11711862B1 (en) 2021-07-15 2023-07-25 T-Mobile Usa, Inc. Dual connectivity and carrier aggregation band selection

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