WO2018101915A1 - Mesures de mobilité dans des systèmes 5g - Google Patents

Mesures de mobilité dans des systèmes 5g Download PDF

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Publication number
WO2018101915A1
WO2018101915A1 PCT/US2016/064010 US2016064010W WO2018101915A1 WO 2018101915 A1 WO2018101915 A1 WO 2018101915A1 US 2016064010 W US2016064010 W US 2016064010W WO 2018101915 A1 WO2018101915 A1 WO 2018101915A1
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WIPO (PCT)
Prior art keywords
enb
brs
related information
neighbor enb
neighbor
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PCT/US2016/064010
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English (en)
Inventor
Sungho Moon
Bishwarup Mondal
Joonyoung Cho
Jong-Kae Fwu
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Intel IP Corporation
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Priority to PCT/US2016/064010 priority Critical patent/WO2018101915A1/fr
Publication of WO2018101915A1 publication Critical patent/WO2018101915A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/0085—Hand-off measurements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists

Definitions

  • Wireless networks are being contemplated to operate according to Fifth Generation (5G) wireless communication standards.
  • 5G systems may utilized beamforming to overcome the higher pathloss in the millimeter wave (mmWave) frequency in the range from about 30 gigahertz (GHz) to about 300 GHz.
  • a user equipment UE may conduct and report to the serving evolved Node B (eNB) a series of measurements, for example Reference Signal Received Power (RSRP) or Received Signal Strength Indicator (RSSI), and so on.
  • RSRP Reference Signal Received Power
  • RSSI Received Signal Strength Indicator
  • the measurements may be categorized as Intra-frequency 5G measurements, Inter-frequency 5G measurements, or Inter-RAT measurements.
  • a 5G system may need a gap to camp on other frequency bands and to measure some metrics similar to those utilized in a Third Generation Partnership Project (3GPP) Long Term Evolution (LTE) standard. Measurements for Intra- frequency 5G measurements should be addressed by the 5G system.
  • 3GPP Third Generation Partnership Project
  • LTE Long Term Evolution
  • FIG. 1 is a diagram of a network capable of utilizing mobility measurement reports for beamforming in accordance with one or more embodiments
  • FIG. 2 is a diagram of an exemplary frame structure for the network of FIG. 1 including a beam reference signal (BRS) in accordance with one or more embodiments;
  • BRS beam reference signal
  • FIG. 3 is a diagram of an exemplary beam reference signal (BRS) multiplexing structure in accordance with one or more embodiments
  • FIG. 4 is a diagram of an alternative exemplary beam reference signal (BRS) multiplexing structure in accordance with one or more embodiments
  • FIG. 5 is a diagram of mobility measurement reports based on the beam related information from a neighbor cell in accordance with one or more embodiments
  • FIG. 6 is a diagram of alternative mobility measurement reports with beam related information from a neighbor cell in accordance with one or more embodiments
  • FIG. 7 is a block diagram of an information handling system capable of implementing mobility measurements for beamforming in accordance with one or more embodiments
  • FIG. 8 is an isometric view of an information handling system of FIG. 7 that optionally may include a touch screen in accordance with one or more embodiments
  • FIG. 7 is a block diagram of an information handling system capable of implementing mobility measurements for beamforming in accordance with one or more embodiments
  • FIG. 8 is an isometric view of an information handling system of FIG. 7 that optionally may include a touch screen in accordance with one or more embodiments.
  • FIG. 9 is a diagram of example components of a wireless device in accordance with one or more embodiments.
  • Coupled may mean that two or more elements are in direct physical and/or electrical contact.
  • coupled may also mean that two or more elements may not be in direct contact with each other, but yet may still cooperate and/or interact with each other.
  • “coupled” may mean that two or more elements do not contact each other but are indirectly joined together via another element or intermediate elements.
  • “On,” “overlying,” and “over” may be used to indicate that two or more elements are in direct physical contact with each other. However, “over” may also mean that two or more elements are not in direct contact with each other. For example, “over” may mean that one element is above another element but not contact each other and may have another element or elements in between the two elements.
  • the term “and/or” may mean “and”, it may mean “or”, it may mean “exclusive-or”, it may mean “one”, it may mean “some, but not all”, it may mean “neither", and/or it may mean “both”, although the scope of claimed subject matter is not limited in this respect.
  • radio access network 100 may include an evolved Node B (eNB) 110 capable of communicating with a user equipment (UE) 112 in accordance with a Fifth Generation (5G) wireless communication standard.
  • eNB evolved Node B
  • UE user equipment
  • 5G Fifth Generation
  • One feature of a 5G network is the capability of eNB 110 and UE 112 to utilize beamforming to overcome high path loss in the millimeter wave (mmWave) frequency in the range from about 30 gigahertz (GHz) to about 300 GHz.
  • mmWave millimeter wave
  • GHz gigahertz
  • a new Beam Reference Signal may be designed to support beam quality measurement in a new frame structure.
  • BRS Beam Reference Signal
  • Such a BRS also may be used to measure beams from a neighboring cell in order to support UE mobility including handover, redirection, and/or reselection, for example as UE 112 moves from location A to location B.
  • UE 112 monitors all possible beams of neighbor cells, which may add some burden to UE 112.
  • the mobility measurement reports of neighbor cells should provide a clear indication of which beams are measured among multiple candidate beams, or as alternatively, UE 112 may follow the indication informed by the serving cell.
  • An example frame structure to support UE mobility and beamforming is shown in and described with respect to FIG. 2, below.
  • FIG. 2 a diagram of an exemplary frame structure for the network of FIG. 1 including a beam reference signal (BRS) in accordance with one or more embodiments will be discussed.
  • a common reference signal CRS
  • DM-RS demodulation reference signal
  • Any precoding for data may be applied to the same to DM-RS, and the receiving device may utilize a precoded DM-RS to extract combined information of the channel and precoding itself. Since there is no CRS, a type of non- precoded RS, it may be difficult to measure the pure channel condition to be used for Radio Resource Management (RRM).
  • RRM Radio Resource Management
  • eNB 110 and UE 112 may intensively utilize beamforming to obtain additional gains in centimeter wave (cmWave) and millimeter (mmWave) where beamforming is much more powerful than in lower frequency bands.
  • cmWave centimeter wave
  • mmWave millimeter
  • beam reference signals may be defined in which each analog beam transmits known information in given subcarriers.
  • An exemplary frame structure 200 including one or more BRSs is shown in FIG. 2.
  • Other subframes such as subframe 1 through subframe 24 may have different subframe formats where there are no synchronization signals and no BRSs.
  • a special subframe such as subframe 0 or subframe 25
  • all symbols in a subframe can be used for synchronization and/or BRS.
  • each set of resource elements (REs) corresponding to a specific BRS antenna port (AP) may have applied different beamforming. Therefore, there are also multiple beamforming APs if different BRS APs are multiplexed by frequency-division multiplexing (FDM) for a given symbol.
  • FDM frequency-division multiplexing
  • only one BRS AP may be used for a given symbol, and thus all 12 symbols may have different beamforming.
  • Example BRS multiplexing structures are shown in and described with respect to FIG. 3 and FIG. 4, below.
  • FIG. 3 and FIG. 4 show two exemplary BRS multiplexing structures.
  • Each BRS symbol may have the following exemplary structure.
  • BRS mutliplexing structure 300 of FIG. 3 and mutliplexing structure 400 of FIG. 4 multiple BRS Antenna Ports (APs) may be multiplexed, where each of the APs may analog-beamformed with different direction and digital-beamformed with a different sequence.
  • APs BRS Antenna Ports
  • one BRS resource 310 comprises eight BRS blocks 312 (BRS 0, BRS 1, BRS 2, up to BRS 7) with 12 subcarriers per each of the eight BRS blocks 312.
  • Other resources may be disposed between two BRS resources 310, for example physical broadcast channel (xPBCH) resources 314, extended synchronization signal (ESS) resource 316, primary synchronization signal (PSS) resource 318, and/or secondary synchronization signal (SSS) resource 320, although the scope of the claimed subject matter is not limited in this respect.
  • xPBCH physical broadcast channel
  • ESS extended synchronization signal
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • BRS multiplexing structure 400 may vary depending on the number of BRS APs. Therefore, in order to correctly measure channel quality from BRS, UE 112 should know the BRS multiplexing structure used by the eNB 110 on which BRS measurements are obtained. In addition each of the APs in different symbols may have a different beamforming in order to support a large number of beams used by eNB 110, in which case UE 112 also should know the time-domain structure, or periodicity, of the BRS structure. Such information is used in mobility measurement because UE 112 may have a limited time in which to measure signals from neighbor cells.
  • UE 112 may perform the same sweeping process as the one that was used for the initial access with the serving cell or eNB 110.
  • the amount of time available to perform measurements may be limited, as a result UE 112 should measure directly a subset of BRSs with the appropriate information, for example via a BRS multiplexing structure 400 in the frequency domain and periodicity in time domain.
  • one resource block 410 may comprise 82 resource elements (REs) wherein 24 REs are used for BRSs, 24 REs are used for xPBCH, 10 REs are used for DM-RS, and another 24 REs are used for BRS.
  • the radio resource measurement (RRM) can be performed in BRS 310 for available beams corresponding to BRS antenna ports 412. Due to a limited number of resources for BRS in a symbol, multiple symbols for BRS 310 may be utilized, wherein those symbols may be placed in every 5 ms, for example in subframe 0, 24, 49, and so on, for example where subframe duration is 0.2 ms.
  • the repeated partem of BRS 310 may depend on the sweeping time of the beams.
  • UE 112 may measure reference signal received power (RSRP) or other measurement metrics such as received signal strength indicator (RSSI) measurements from one or more neighbor cells or eNBs with the corresponding cell information which has been delivered form the serving cell or eNB 110, and the measurement reports may be fed to the serving cell.
  • the information can be used by serving cell or eNB 110 for the decision to perform a handover to a neighbor cell.
  • RSRP reference signal received power
  • RSSI received signal strength indicator
  • the serving cell or eNB 110 may provide a selected subset of beam-related information to be measured by UE 112 for neighbor eNBs.
  • This beam-related information may be pre-exchanged between the serving cell or eNB 110 and the neighbor cell or eNB via an X2 interface between the eNBs.
  • UE 112 may reduce the number of beams to be measured for each of the neighbor cells. An example of such approach is shown in and described with respect to FIG. 5, below.
  • eNB 110 may be the serving cell for UE 112
  • eNB 510 may be a neighboring cell on which UE 112 may take BRS measurements to determine whether or not a handover should be made from eNB 110 to eNB 510 at which point eNB 510 would become the new serving cell for UE 112.
  • UE 112 may measure the BRS on a subset of the beams of the total number of beams utilized by eNB 510.
  • eNB 510 provides the beam related information at operation 512 via an X2 interface to eNB 110 that would allow UE 112 to perform the BRS measurements. Subsequently, eNB 110 provides this beam related information to UE 112 at operation 514, and UE 112 makes the BRS measurements based on the beam related information. After making the BRS measurements, UE 112 generates a mobility measurement report and provides the mobility measurement report to eNB 110 at operation. The mobility measurement report is then evaluated by eNB 110 acting as the serving cell to determine if a handover should be made. If a handover should be made to eNB 510, eNB 110 may send a handover message to UE 112 to perform the handover to eNB 510.
  • the BRS or beam related information of a neighbor eNB 510 may be transmitted from the serving eNB 110 to UE 112 in a physical broadcast channel (PBCH) transmission as part of a master information block (MIB) in a broadcast channel, in a physical downlink shared channel (PDSCH) transmission as part of a system information block (SIB) scheduled by a physical downlink control channel (PDCCH) transmission, and/or in a PDCCH transmission as part of downlink control information (DCI), although the scope of the claimed subject matter is not limited in this respect.
  • PBCH physical broadcast channel
  • MIB master information block
  • PDSCH physical downlink shared channel
  • SIB system information block
  • DCI downlink control information
  • the mobility measurement report transmitted from UE 112 to serving eNB 110 may be carried in a physical uplink shared channel (PUSCH) and may be multiplexed with data or transmitted without data, and/or in the physical uplink control channel (PUCCH) as part of uplink control information (UCI), although the scope of the claimed subject matter is not limited in this respect.
  • PUSCH physical uplink shared channel
  • PUCCH physical uplink control channel
  • the beam related information transmitted at operation 512 may include the number of multiplexed BRS APs per symbol of neighbor cell 510 as informed to UE 112 from the neighbor cell (eNB 510) and through the serving cell (eNB 110).
  • This beam related information is provided to allow UE 112 to know the BRS multiplexing structure such as BRS structure 300 of FIG. 3 or BRS structure 400 of FIG. 4, to allow UE 112 perform the appropriate RSRP measurements.
  • the beam related information may include the cell identifier (ID) of eNB 510 and the number of BRS APs per symbol.
  • the beam related information transmitted at operation 512 to eNB is transmitted at operation 512 to eNB
  • the beam related information may include the cell ID of eNB 510 and the total beam sweep time.
  • the beam related information transmitted at operation 512 to eNB 110 may include a set of transmit (Tx) beam IDs of eNB 510.
  • the set of Tx beams are candidate beams to be measured for RSRP or other mobility measurements.
  • the set of Tx beams may correspond to the beams that are transmitted in a single subframe in order to reduce the beam sweep time for the neighbor cell.
  • the usefulness of the Tx beam IDs may depend on whether UE 112 has the prerequisite information about the relationship between receive (Rx) beam IDs and Tx beam IDs. If UE 112 does not have the relationship between Rx beam IDs and Tx beam IDs of eNB 510, then the provided Tx beam IDs provide no information for UE 112. For example, UE 112 may not know which Rx beam should be measured for the Tx beam of eNB 510. In such an embodiment, UE 112 may interpret a Tx beam into a Rx beam which may be done by full beam sweeping and feedback of the Rx beam ID corresponding to the Tx beam ID.
  • the beam related information transmitted at operation 512 to eNB 110 may include a time index and a frequency index of the target BRS AP to be measured.
  • the signaling overhead may be increased compared to beam ID signaling, but there is no need for some prerequisite information of the relationship between the Tx beam ID and the Rx beam ID.
  • the frequency domain index specifies which BRS APs should be measured by UE 112 in a given orthogonal frequency-division multiple access (OFDMA) symbol.
  • the time domain index may correspond to the OFDM symbol index and system frame number (SFN).
  • UE 112 may measure RSRP of eNB 510 every 4 subframes with an offset of 2 in the 6th OFDM symbol, and report the RSRPs to eNB 110. Then eNB 110, the serving cell receiving the RSRP, is able to know which Tx beams are measured by UE 110.
  • eNB 110 does not transmit to UE 112 the beam related information that was received from eNB 510 via operation 512.
  • UE 112 provides the set of beam related information to eNB 110 when UE 112 sends to eNB 110 the measurement report on eNB 510 at operation 516.
  • This set of beam related information is provided by UE 112 to eNB 110 in order for eNB 110 to utilize the measurement reports correctly.
  • UE 112 Because the serving eNB 110 does not inform the UE 112 of the beam related information of eNB 510, UE 112 has the freedom to choose a set of one or more beams for BRS measurements on eNB 510. When UE 112 reports the measurements to eNB 110, UE 112 lets the serving cell know which beam or beams of eNB 510 were measured in the measurement report. As a result, eNB 110 may then determine if a handover should occur based on the both the information received from UE 110 and information delivered from eNB 510 via an X2 interface.
  • the information when UE 112 provides feedback of RSRPs or other measurement reports to eNB 110 at operation 516, the information includes a relevant time and frequency index of the measured BRS to allow eNB 110 tO know which beams were measured for each RSRP value.
  • the information when UE 112 provides feedback of RSRPs or other measurement reports to eNB 110 at operation 516, the information includes relevant Rx beam information, which may be the same as the situation with Tx beam indication. If there is no relationship between Rx beams and Tx beams, the Rx beam information may not useful to eNB 110, in which case it may be assumed that there was a preprocessing operation to define the relationship between Rx beams and Tx beams.
  • Information handling system 700 of FIG. 7 may tangibly embody any one or more of the network elements described herein, above, including for example eNB 110, UE 112 and/or eNB 510, with greater or fewer components depending on the hardware specifications of the particular device.
  • information handling system 700 may embody an apparatus of a user equipment (UE), comprising one or more radio-frequency (RF) transceivers to receive beam related information from a serving evolved Node B (eNB) in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) of the serving eNB for beam reference signal (BRS) measurements to be performed on a neighbor eNB, and to receive one or more BRS transmissions in a PDCCH, PBCH, or PDSCH of the neighbor eNB on a selected set of beams of the neighbor eNB according to the beam related information, and one or more baseband processors to perform the BRS measurements on the received BRS transmissions and to generate a mobility measurement report for the neighbor eNB based on the BRS measurements, wherein the one or more RF transceivers are to transmit the mobility measurement report for the neighbor eNB to the serving eNB in a physical uplink control channel (PUCCH) or physical uplink control channel
  • information handling system 700 may embody an apparatus of an evolved Node B (eNB), comprising one or more baseband processors to process beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the neighbor eNB, and one or more radio-frequency (RF) transceivers to transmit the beam related information to the UE in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH), and to receive a measurement report from the UE in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) for BRS measurements performed on the neighbor eNB by the UE, wherein the one or more baseband processors are to determine whether a handover should be performed by the UE to the neighbor eNB based on the mobility measurement report received from the UE.
  • eNB evolved Node B
  • information handling system 700 represents one example of several types of computing platforms, information handling system 700 may include more or
  • information handling system 700 may include one or more application processors 710 and one or more baseband processors 712.
  • Application processor 710 may be utilized as a general-purpose processor to run applications and the various subsystems for information handling system 700.
  • Application processor 710 may include a single core or alternatively may include multiple processing cores.
  • One or more of the cores may comprise a digital signal processor or digital signal processing (DSP) core.
  • application processor 710 may include a graphics processor or coprocessor disposed on the same chip, or alternatively a graphics processor coupled to application processor 710 may comprise a separate, discrete graphics chip.
  • Application processor 710 may include on board memory such as cache memory, and further may be coupled to external memory devices such as synchronous dynamic random access memory (SDRAM) 714 for storing and/or executing applications during operation, and NAND flash 716 for storing applications and/or data even when information handling system 700 is powered off.
  • SDRAM synchronous dynamic random access memory
  • NAND flash 716 for storing applications and/or data even when information handling system 700 is powered off.
  • instructions to operate or configure the information handling system 700 and/or any of its components or subsystems to operate in a manner as described herein may be stored on an article of manufacture comprising a non-transitory storage medium.
  • the storage medium may comprise any of the memory devices shown in and described herein, although the scope of the claimed subject matter is not limited in this respect.
  • Baseband processor 712 may control the broadband radio functions for information handling system 700.
  • Baseband processor 712 may store code for controlling such broadband radio functions in a NOR flash 718.
  • Baseband processor 712 controls a wireless wide area network (WW AN) transceiver 720 which is used for modulating and/or demodulating broadband network signals, for example for communicating via a 3GPP LTE or LTE-Advanced network or the like.
  • WW AN wireless wide area network
  • WW AN transceiver 720 may operate according to any one or more of the following radio communication technologies and/or standards including but not limited to: a Global System for Mobile Communications (GSM) radio communication technology, a General Packet Radio Service (GPRS) radio communication technology, an Enhanced Data Rates for GSM Evolution (EDGE) radio communication technology, and/or a Third Generation Partnership Project (3GPP) radio communication technology, for example Universal Mobile Telecommunications System (UMTS), Freedom of Multimedia Access (FOMA), 3GPP Long Term Evolution (LTE), 3GPP Long Term Evolution Advanced (LTE Advanced), Code division multiple access 2000 (CDMA2000), Cellular Digital Packet Data (CDPD), Mobitex, Third Generation (3G), Circuit Switched Data (CSD), High-Speed Circuit-Switched Data (HSCSD), Universal Mobile Telecommunications System (Third Generation) (UMTS (3G)), Wideband Code Division Multiple Access (Universal Mobile Telecommunications System) (W-CDMA (UMTS)), High Speed Packet Access (HSPA), High Speed Pack
  • 3 GPP Rel. 9 (3rd Generation Partnership Project Release 9), 3 GPP Rel. 10 (3rd Generation Partnership Project Release 10) , 3 GPP Rel. 11 (3rd Generation Partnership Project Release 11), 3GPP Rel. 12 (3rd Generation Partnership Project Release 12), 3 GPP Rel. 13 (3rd Generation Partnership Project Release 12), 3 GPP Rel.
  • the WW AN transceiver 720 couples to one or more power amps 742 respectively coupled to one or more antennas 424 for sending and receiving radio-frequency signals via the WW AN broadband network.
  • the baseband processor 712 also may control a wireless local area network (WLAN) transceiver 726 coupled to one or more suitable antennas 728 and which may be capable of communicating via a Wi-Fi, Bluetooth®, and/or an amplitude modulation (AM) or frequency modulation (FM) radio standard including an IEEE 802.11 a/b/g/n standard or the like.
  • WLAN wireless local area network
  • AM amplitude modulation
  • FM frequency modulation
  • any one or more of SDRAM 414, NAND flash 716 and/or NOR flash 718 may comprise other types of memory technology such as magnetic memory, chalcogenide memory, phase change memory, or ovonic memory, and the scope of the claimed subject matter is not limited in this respect.
  • application processor 710 may drive a display 730 for displaying various information or data, and may further receive touch input from a user via a touch screen 732 for example via a finger or a stylus.
  • An ambient light sensor 434 may be utilized to detect an amount of ambient light in which information handling system 700 is operating, for example to control a brightness or contrast value for display 730 as a function of the intensity of ambient light detected by ambient light sensor 734.
  • One or more cameras 736 may be utilized to capture images that are processed by application processor 710 and/or at least temporarily stored in NAND flash 716.
  • application processor may couple to a gyroscope 738, accelerometer 740, magnetometer 742, audio coder/decoder (CODEC) 744, and/or global positioning system (GPS) controller 746 coupled to an appropriate GPS antenna 748, for detection of various environmental properties including location, movement, and/or orientation of information handling system 700.
  • controller 746 may comprise a Global Navigation Satellite System (GNSS) controller.
  • Audio CODEC 744 may be coupled to one or more audio ports 750 to provide microphone input and speaker outputs either via internal devices and/or via external devices coupled to information handling system via the audio ports 750, for example via a headphone and microphone jack.
  • application processor 710 may couple to one or more input/output (I/O) transceivers 752 to couple to one or more I/O ports 754 such as a universal serial bus (USB) port, a high-definition multimedia interface (HDMI) port, a serial port, and so on.
  • I/O transceivers 752 may couple to one or more memory slots 756 for optional removable memory such as secure digital (SD) card or a subscriber identity module (SIM) card, although the scope of the claimed subject matter is not limited in these respects.
  • SD secure digital
  • SIM subscriber identity module
  • FIG. 8 shows an example implementation of information handling system 700 of FIG. 7 tangibly embodied as a cellular telephone, smartphone, or tablet type device or the like.
  • the information handling system 700 may comprise a housing 810 having a display 730 which may include a touch screen 732 for receiving tactile input control and commands via a finger 816 of a user and/or a via stylus 818 to control one or more application processors 710.
  • the housing 810 may house one or more components of information handling system 700, for example one or more application processors 710, one or more of SDRAM 714, NAND flash 716, NOR flash 718, baseband processor 712, and/or WW AN transceiver 720.
  • the information handling system 700 further may optionally include a physical actuator area 820 which may comprise a keyboard or buttons for controlling information handling system via one or more buttons or switches.
  • the information handling system 700 may also include a memory port or slot 756 for receiving non- volatile memory such as flash memory, for example in the form of a secure digital (SD) card or a subscriber identity module (SIM) card.
  • SD secure digital
  • SIM subscriber identity module
  • the information handling system 700 may further include one or more speakers and/or microphones 824 and a connection port 754 for connecting the information handling system 700 to another electronic device, dock, display, battery charger, and so on.
  • information handling system 700 may include a headphone or speaker jack 828 and one or more cameras 736 on one or more sides of the housing 810. It should be noted that the information handling system 700 of FIG. 8 may include more or fewer elements than shown, in various arrangements, and the scope of the claimed subject matter is not limited in this respect.
  • circuit may refer to, be part of, or include an Application Specific Integrated Circuit (ASIC), an electronic circuit, a processor (shared, dedicated, or group), and/or memory (shared, dedicated, or group) that execute one or more software or firmware programs, a combinational logic circuit, and/or other suitable hardware components that provide the described functionality.
  • ASIC Application Specific Integrated Circuit
  • the circuitry may be implemented in, or functions associated with the circuitry may be implemented by, one or more software or firmware modules.
  • circuitry may include logic, at least partially operable in hardware. Embodiments described herein may be implemented into a system using any suitably configured hardware and/or software.
  • User equipment (UE) 900 may correspond, for example, UE 112, or alternatively to eNB 110 or eNB 510, although the scope of the claimed subject matter is not limited in this respect.
  • UE device (or eNB device) 900 may include application circuitry 902, baseband circuitry 904, Radio Frequency (RF) circuitry 906, front-end module (FEM) circuitry 908 and one or more antennas 910, coupled together at least as shown.
  • RF Radio Frequency
  • FEM front-end module
  • Application circuitry 902 may include one or more application processors.
  • application circuitry 902 may include circuitry such as, but not limited to, one or more single- core or multi-core processors.
  • the one or more processors may include any combination of general-purpose processors and dedicated processors, for example graphics processors, application processors, and so on.
  • the processors may be coupled with and/or may include memory and/or storage and may be configured to execute instructions stored in the memory and/or storage to enable various applications and/or operating systems to run on the system.
  • Baseband circuitry 904 may include circuitry such as, but not limited to, one or more single-core or multi-core processors.
  • Baseband circuitry 904 may include one or more baseband processors and/or control logic to process baseband signals received from a receive signal path of RF circuitry 906 and to generate baseband signals for a transmit signal path of the RF circuitry 906.
  • Baseband processing circuity 904 may interface with the application circuitry 902 for generation and processing of the baseband signals and for controlling operations of the RF circuitry 906.
  • the baseband circuitry 904 may include a second generation (2G) baseband processor 904a, third generation (3G) baseband processor 904b, fourth generation (4G) baseband processor 904c, and/or one or more other baseband processors 904d for other existing generations, generations in development or to be developed in the future, for example fifth generation (5G), sixth generation (6G), and so on.
  • Baseband circuitry 904, for example one or more of baseband processors 904a through 904d may handle various radio control functions that enable communication with one or more radio networks via RF circuitry 906.
  • the radio control functions may include, but are not limited to, signal modulation and/or demodulation, encoding and/or decoding, radio frequency shifting, and so on.
  • modulation and/or demodulation circuitry of baseband circuitry 904 may include Fast-Fourier Transform (FFT), precoding, and/or constellation mapping and/or demapping functionality.
  • FFT Fast-Fourier Transform
  • encoding and/or decoding circuitry of baseband circuitry 804 may include convolution, tail-biting convolution, turbo, Viterbi, and/or Low Density Parity Check (LDPC) encoder and/or decoder functionality.
  • LDPC Low Density Parity Check
  • baseband circuitry 904 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
  • Processor 904e of the baseband circuitry 904 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 processors (DSP) 904f.
  • DSP audio digital signal processors
  • the one or more audio DSPs 904f may include elements for compression and/or decompression and/or 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 baseband circuitry 904 and application circuitry 902 may be implemented together such as, for example, on a system on a chip (SOC).
  • SOC system on a chip
  • baseband circuitry 904 may provide for communication compatible with one or more radio technologies.
  • baseband circuitry 904 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 906 may enable communication with wireless networks using modulated electromagnetic radiation through a non-solid medium.
  • RF circuitry 906 may include switches, filters, amplifiers, and so on, to facilitate the communication with the wireless network.
  • RF circuitry 906 may include a receive signal path which may include circuitry to down-convert RF signals received from FEM circuitry 908 and provide baseband signals to baseband circuitry 904.
  • RF circuitry 906 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 FEM circuitry 1008 for transmission.
  • RF circuitry 906 may include a receive signal path and a transmit signal path.
  • the receive signal path of RF circuitry 906 may include mixer circuitry 906a, amplifier circuitry 906b and filter circuitry 906c.
  • the transmit signal path of RF circuitry 906 may include filter circuitry 906c and mixer circuitry 906a.
  • RF circuitry 906 may also include synthesizer circuitry 906d for synthesizing a frequency for use by the mixer circuitry 906a of the receive signal path and the transmit signal path.
  • the mixer circuitry 906a of the receive signal path may be configured to down-convert RF signals received from FEM circuitry 908 based on the synthesized frequency provided by synthesizer circuitry 906d.
  • Amplifier circuitry 906b may be configured to amplify the down-converted signals and the filter circuitry 906c 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 baseband circuitry 904 for further processing.
  • the output baseband signals may be zero-frequency baseband signals, although this is not a requirement.
  • mixer circuitry 906a of the receive signal path may comprise passive mixers, although the scope of the embodiments is not limited in this respect.
  • mixer circuitry 906a of the transmit signal path may be configured to up-convert input baseband signals based on the synthesized frequency provided by synthesizer circuitry 906d to generate RF output signals for FEM circuitry 908.
  • the baseband signals may be provided by the baseband circuitry 904 and may be filtered by filter circuitry 906c.
  • Filter circuitry 906c may include a low-pass filter (LPF), although the scope of the embodiments is not limited in this respect.
  • LPF low-pass filter
  • mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may include two or more mixers and may be arranged for quadrature down conversion and/or up conversion respectively.
  • mixer circuitry 906a of the receive signal path and the mixer circuitry 906a of the transmit signal path may include two or more mixers and may be arranged for image rejection, for example Hartley image rejection.
  • mixer circuitry 906a of the receive signal path and the mixer circuitry 906a may be arranged for direct down conversion and/or direct up conversion, respectively.
  • mixer circuitry 906a of the receive signal path and mixer circuitry 906a 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.
  • RF circuitry 1006 may include analog- to-digital converter (ADC) and digital-to-analog converter (DAC) circuitry
  • baseband circuitry 904 may include a digital baseband interface to communicate with RF circuitry 906.
  • ADC analog- to-digital converter
  • DAC digital-to-analog converter
  • baseband circuitry 904 may include a digital baseband interface to communicate with RF circuitry 906.
  • separate radio integrated circuit (IC) circuitry may be provided for processing signals for one or more spectra, although the scope of the embodiments is not limited in this respect.
  • synthesizer circuitry 906d may be a fractional -N synthesizer or a fractional N/N+l synthesizer, although the scope of the embodiments is not limited in this respect as other types of frequency synthesizers may be suitable.
  • synthesizer circuitry 906d may be a delta-sigma synthesizer, a frequency multiplier, or a synthesizer comprising a phase-locked loop with a frequency divider.
  • Synthesizer circuitry 906d may be configured to synthesize an output frequency for use by mixer circuitry 906a of RF circuitry 1006 based on a frequency input and a divider control input. In some embodiments, synthesizer circuitry 906d may be a fractional N/N+l 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 baseband circuitry 904 or applications processor 902 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 applications processor 902.
  • Synthesizer circuitry 906d of RF circuitry 1006 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 (DP A).
  • the DMD may be configured to divide the input signal by either N or N+l, for example 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 906d 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, for example twice the carrier frequency, four times the carrier frequency, and so on, 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 local oscillator (LO) frequency (fLO).
  • RF circuitry 1006 may include an in-phase and quadrature (IQ) and/or polar converter.
  • FEM circuitry 908 may include a receive signal path which may include circuitry configured to operate on RF signals received from one or more antennas 910, amplify the received signals and provide the amplified versions of the received signals to the RF circuitry 906 for further processing.
  • FEM circuitry 908 may also include a transmit signal path which may include circuitry configured to amplify signals for transmission provided by RF circuitry 906 for transmission by one or more of the one or more antennas 910.
  • FEM circuitry 908 may include a transmit/receive (TX/RX) switch to switch between transmit mode and receive mode operation.
  • FEM circuitry 908 may include a receive signal path and a transmit signal path.
  • the receive signal path of FEM circuitry 908 may include a low-noise amplifier (LNA) to amplify received RF signals and to provide the amplified received RF signals as an output, for example to RF circuitry 906.
  • the transmit signal path of FEM circuitry 908 may include a power amplifier (PA) to amplify input RF signals, for example provided by RF circuitry 906, and one or more filters to generate RF signals for subsequent transmission, for example by one or more of antennas 910.
  • UE device 900 may include additional elements such as, for example, memory and/or storage, display, camera, sensor, and/or input/output (I/O) interface, although the scope of the claimed subject matter is not limited in this respect.
  • an apparatus of a user equipment may comprise one or more radio-frequency (RF) transceivers to receive beam related information from a serving evolved Node B (eNB) in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) of the serving eNB for beam reference signal (BRS) measurements to be performed on a neighbor eNB, and to receive one or more BRS transmissions in a PDCCH, PBCH, or PDSCH of the neighbor eNB on a selected set of beams of the neighbor eNB according to the beam related information, and one or more baseband processors to perform the BRS measurements on the received BRS transmissions and to generate a mobility measurement report for the neighbor eNB based on the BRS measurements, wherein the one or more RF transceivers are to transmit the mobility measurement report for the neighbor eNB to the serving eNB in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH).
  • RF radio-
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the beam related information has been received by the serving eNB from the neighbor eNB via an X2 interface.
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the BRS measurements comprise a Reference Signal Received Power (RSRP) measurement, or a Received Signal Strength Indicator (RSSI) measurement, or a combination thereof.
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a number of multiplexed BRS antenna ports (APs) per symbol of the neighbor eNB.
  • APs multiplexed BRS antenna ports
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a periodicity of BRS beams of the neighbor eNB.
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a selected set of transmit beam identifiers (IDs) to be measured.
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a time index, or a frequency index, or combination thereof, of a target BRS.
  • the subject matter of example one or any of the examples described herein further may comprise an apparatus, wherein the one or more RF transceivers are to receive a handover message from the serving eNB in the PDCCH, PBCH, or PDSCH of the serving eNB indicating to perform a handover to the neighbor eNB if the mobility measurement report indicates that a handover should occur, and the one or more baseband processors are to cause a handover to the neighbor eNB to be executed in response to the handover message.
  • an apparatus of an evolved Node B may comprise one or more baseband processors to process beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the neighbor eNB, and one or more radio-frequency (RF) transceivers to transmit the beam related information to the UE in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH), and to receive a measurement report from the UE in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) for BRS measurements performed on the neighbor eNB by the UE, wherein the one or more baseband processors are to determine whether a handover should be performed by the UE to the neighbor eNB based on the mobility measurement report received from the UE.
  • a baseband processors to process beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the
  • the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the BRS measurements comprise a Reference Signal Received Power (RSRP) measurement, or a Received Signal Strength Indicator (RSSI) measurement, or a combination thereof.
  • the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a number of multiplexed BRS antenna ports (APs) per symbol of the neighbor eNB.
  • the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a periodicity of BRS beams of the neighbor eNB.
  • the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a selected set of transmit beam identifiers (IDs) to be measured.
  • the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a time index, or a frequency index, or combination thereof, of a target BRS.
  • example fifteen the subject matter of example nine or any of the examples described herein further may comprise an apparatus, wherein the one or more RF transceivers are to transmit a handover message to the UE in the PDCCH, PBCH, or PDSCH indicating to perform a handover to the neighbor eNB if the mobility measurement report indicates that a handover should occur.
  • one or more computer-readable media having instructions stored thereon that, if executed by a user equipment (UE), may result in selecting a set of beams of a neighbor evolved Node B (eNB) on which to perform BRS measurements, performing beam BRS measurements on one or more BRS transmissions from the neighbor eNB in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) on the selected set of beams, generating a mobility measurement report for the neighbor eNB based on the BRS measurements, and causing the mobility measurement report for the neighbor eNB and information regarding the selected set of beams to be transmitted to a serving eNB on a physical uplink control channel.
  • a user equipment UE may result in selecting a set of beams of a neighbor evolved Node B (eNB) on which to perform BRS measurements, performing beam BRS measurements on one or more BRS transmissions from the neighbor eNB in a physical downlink control channel (PDCCH), a physical broadcast channel (
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein beam related information has been received by the serving eNB from the neighbor eNB via an X2 interface.
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the BRS measurements comprise a Reference Signal Received Power (RSRP) measurement, or a Received Signal Strength Indicator (RSSI) measurement, or a combination thereof.
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the beam related information comprises a number of multiplexed BRS antenna ports (APs) per symbol of the neighbor eNB.
  • APs multiplexed BRS antenna ports
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the beam related information comprises a periodicity of BRS beams of the neighbor eNB.
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the beam related information comprises a selected set of transmit beam identifiers (IDs) to be measured.
  • the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the beam related information comprises a time index, or a frequency index, or combination thereof, of a target BRS.
  • example twenty-three the subject matter of example sixteen or any of the examples described herein further may comprise one or more computer-readable media, wherein the instructions, if executed, further result in processing a handover message from the serving eNB indicating to perform a handover to the neighbor eNB if the mobility measurement report and beam related information from the neighbor eNB indicates that a handover should occur, and causing a handover to the neighbor eNB to be executed in response to the handover message.
  • one or more computer-readable media having instructions stored thereon that, if executed by a user equipment (UE), may result in processing beam related information received from a serving evolved Node B (eNB) in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) of the serving eNB for beam reference signal (BRS) measurements to be performed on a neighbor eNB, performing BRS measurements on one or more BRS transmissions received from the neighbor eNB in a PDCCH, PBCH, or PDSCH of the neighbor eNB on a set of beams of the neighbor eNB according to the beam related information, and generating a mobility measurement report for the neighbor eNB based on the BRS measurements.
  • eNB physical downlink control channel
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • example twenty- five the subject matter of example twenty-four or any of the examples described herein further may comprise one or more computer-readable media, wherein the instructions, if executed, further result in causing the mobility measurement report for the neighbor eNB to be transmitted to the serving eNB in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH).
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • one or more computer-readable media having instructions stored thereon that, if executed by an evolved Node B (eNB), may result in processing beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the neighbor eNB, causing the beam related information to be transmitted to the UE in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) and receiving a measurement report from the UE in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) for BRS measurements performed on the neighbor eNB by the UE.
  • a physical downlink control channel PUCCH
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • example twenty-seven the subject matter of example twenty-six or any of the examples described herein further may comprise one or more computer-readable media, wherein the instructions, if executed, further result in determining whether a handover should be performed by the UE to the neighbor eNB based on the mobility measurement report received from the UE.
  • an apparatus of user equipment may comprise means for selecting a set of beams of a neighbor evolved Node B (eNB) on which to perform BRS measurements, means for performing beam BRS measurements on one or more BRS transmissions from the neighbor eNB in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH), on the selected set of beams, means for generating a mobility measurement report for the neighbor eNB based on the BRS measurements, and means for causing the mobility measurement report for the neighbor eNB and information regarding the selected set of beams to be transmitted to a serving eNB on a physical uplink control channel.
  • eNB neighbor evolved Node B
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein beam related information has been received by the serving eNB from the neighbor eNB via an X2 interface.
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein the BRS measurements comprise a Reference Signal Received Power (RSRP) measurement, or a Received Signal Strength Indicator (RSSI) measurement, or a combination thereof.
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a number of multiplexed BRS antenna ports (APs) per symbol of the neighbor eNB.
  • APs multiplexed BRS antenna ports
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a periodicity of BRS beams of the neighbor eNB.
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a selected set of transmit beam identifiers (IDs) to be measured.
  • the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, wherein the beam related information comprises a time index, or a frequency index, or combination thereof, of a target BRS.
  • example thirty -five the subject matter of example twenty-eight or any of the examples described herein further may comprise an apparatus, further comprising means for processing a handover message from the serving eNB indicating to perform a handover to the neighbor eNB if the mobility measurement report and beam related information from the neighbor eNB indicates that a handover should occur, and means for causing a handover to the neighbor eNB to be executed in response to the handover message.
  • an apparatus of a user equipment may comprise means for processing beam related information received from a serving evolved Node B (eNB) in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH) of the serving eNB for beam reference signal (BRS) measurements to be performed on a neighbor eNB, means for performing BRS measurements on one or more BRS transmissions received from the neighbor eNB in a PDCCH, PBCH, or PDSCH of the neighbor eNB on a set of beams of the neighbor eNB according to the beam related information, and means for generating a mobility measurement report for the neighbor eNB based on the BRS measurements.
  • eNB physical downlink control channel
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • example thirty-seven the subject matter of example thirty-six or any of the examples described herein further may comprise an apparatus, further comprising means for causing the mobility measurement report for the neighbor eNB to be transmitted to the serving eNB in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH).
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • an apparatus of an evolved Node B may comprise means for processing beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the neighbor eNB, means for causing the beam related information to be transmitted to the UE in a physical downlink control channel (PDCCH), a physical broadcast channel (PBCH), or a physical downlink shared channel (PDSCH), and means for receiving a measurement report from the UE in a physical uplink control channel (PUCCH) or physical uplink shared channel (PUSCH) for BRS measurements performed on the neighbor eNB by the UE.
  • PDCCH physical downlink control channel
  • PBCH physical broadcast channel
  • PDSCH physical downlink shared channel
  • example thirty-nine the subject matter of example thirty-eight or any of the examples described herein further may comprise an apparatus, further comprising means for determining whether a handover should be performed by the UE to the neighbor eNB based on the mobility measurement report received from the UE.
  • an apparatus of a user equipment may comprise a baseband processor to process beam related information received from a serving evolved Node B (eNB) in a physical downlink shared channel (PDSCH) of the serving eNB for beam reference signal (BRS) measurements to be performed on a neighbor eNB, and to perform BRS measurements on one or more BRS transmissions received from the neighbor eNB on a set of beams of the neighbor eNB according to the beam related information, and a memory coupled to the baseband processor to store the BRS measurements, wherein the baseband processor is to generate a mobility measurement report for the neighbor eNB based on the BRS measurements stored in the memory.
  • the subject matter of example forty or any of the examples described herein further may comprise the baseband processor to cause the mobility measurement report for the neighbor eNB to be transmitted to the serving eNB in a physical uplink shared channel (PUSCH).
  • PUSCH physical uplink shared channel
  • an apparatus as claimed in an evolved Node B may comprise a baseband processor to process beam related information received from a neighbor eNB via an X2 interface regarding BRS measurements to be performed by a user equipment (UE) on the neighbor eNB, and a memory to store the beam related information, wherein the baseband processor is to cause the beam related information stored in the memory to be transmitted to the UE in a physical downlink shared channel (PDSCH), and to process a measurement report received from the UE in a physical uplink shared channel (PUSCH) for BRS measurements performed on the neighbor eNB by the UE.
  • the subject matter of example forty-two or any of the examples described herein further may comprise the baseband processor to determine whether a handover should be performed by the UE to the neighbor eNB based on the mobility measurement report received from the UE.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Brièvement, selon un ou plusieurs modes de réalisation, l'invention concerne un appareil d'un équipement utilisateur (UE) comprenant un ou plusieurs émetteurs-récepteurs radiofréquences (RF) pour recevoir des informations relatives au faisceau provenant d'un nœud B évolué de desserte (eNB) dans un canal de commande de liaison descendante physique (PDCCH), un canal de diffusion physique (PBCH), ou un canal partagé de liaison descendante physique (PDSCH) de l'eNB de desserte pour des mesures de signal de référence de faisceau (BRS) à effectuer sur un eNB voisin, et pour recevoir une ou plusieurs transmissions de BRS dans un PDCCH, un PBCH ou un PDSCH de l'eNB voisin sur un ensemble sélectionné de faisceaux de l'eNB voisin selon les informations relatives au faisceau. Un ou plusieurs processeurs de bande de base pour effectuer les mesures de BRS sur les transmissions de BRS reçues et pour générer un rapport de mesure de mobilité pour l'eNB voisin sur la base des mesures de BRS. Le ou les émetteurs-récepteurs RF doivent transmettre le rapport de mesure de mobilité pour l'eNB voisin à l'eNB de desserte dans un canal de commande de liaison montante physique (PUCCH).
PCT/US2016/064010 2016-11-29 2016-11-29 Mesures de mobilité dans des systèmes 5g WO2018101915A1 (fr)

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