WO2020107423A1 - Procédé, dispositif et support lisible par ordinateur pour effectuer une mesure sinr - Google Patents

Procédé, dispositif et support lisible par ordinateur pour effectuer une mesure sinr Download PDF

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Publication number
WO2020107423A1
WO2020107423A1 PCT/CN2018/118640 CN2018118640W WO2020107423A1 WO 2020107423 A1 WO2020107423 A1 WO 2020107423A1 CN 2018118640 W CN2018118640 W CN 2018118640W WO 2020107423 A1 WO2020107423 A1 WO 2020107423A1
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WIPO (PCT)
Prior art keywords
resource
resources
csi
network device
terminal device
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PCT/CN2018/118640
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English (en)
Inventor
Fang Yuan
Gang Wang
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Nec Corporation
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Priority to PCT/CN2018/118640 priority Critical patent/WO2020107423A1/fr
Publication of WO2020107423A1 publication Critical patent/WO2020107423A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/0404—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas the mobile station comprising multiple antennas, e.g. to provide uplink diversity
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/309—Measuring or estimating channel quality parameters
    • H04B17/345—Interference values
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0014—Three-dimensional division
    • H04L5/0023—Time-frequency-space

Definitions

  • Embodiments of the present disclosure generally relate to the field of communication, and in particular, to methods, devices and computer readable media for signal to interference-and-noise ratio (SINR) measurement.
  • SINR signal to interference-and-noise ratio
  • NR new radio
  • LTE Long Term Evolution
  • 3GPP Third Generation Partnership Project
  • a terminal device e.g. user equipment, UE
  • a network device e.g. gNodeB
  • L1-SINR measurement should be supported in NR. Therefore, there is a need to specify the measurement and reporting of L1-SINR, particularly for beam management purpose.
  • example embodiments of the present disclosure provide methods, devices and computer readable media for beam information based positioning.
  • a method at a terminal device comprises performing channel measurement on a first signal, the first signal being received from a network device in a beam with a first resource of a first group of resources; determining, based on the first resource, a second resource from a second group of resources configured for interference measurement, the second group of resources being different from the first group of resources; and performing the interference measurement on a second signal, the second signal being received from the network device in the beam with the second resource.
  • a method implemented at a terminal device comprises determining first and second ports associated with a resource configured by the network device, the first port being configured for channel measurement and the second port being configured for interference measurement; and performing the channel measurement on a first stream of a signal received from a network device via the first port and interference measurement on a second stream of the signal received from the network device via the second port.
  • a method implemented at a terminal device comprises performing channel and interference measurements on signals received from a network device with a group of resources; selecting, based on the channel and interference measurements, a first resource and a second resource from the plurality of resources, the first resource being associated with the channel measurement and the second resource being associated with the interference measurement; and transmitting, to a network device, indications of the first and second resources.
  • a method implemented at a network device comprises transmitting, to a terminal device, signals in a plurality of beams with a group of resources, each of the plurality of beams corresponding to one resource in the group of resources; receiving, from the terminal device, indications of first and second resources of the group of resources, the first resource being associated with a channel measurement performed by the terminal device and the second resource being associated with an interference measurement performed by the terminal device; and determining first and second beams of the plurality of beams to enable communication between the network device and the terminal device via the first beam and communication between the network device and a further terminal device via the second beam, the first beam corresponding to the first resource and the second beam corresponding to the second resource.
  • a terminal device in a fifth aspect, includes a processor; and a memory coupled to the processing unit and storing instructions thereon, the instructions, when executed by the processing unit, causing the device to perform the method according to the first aspect.
  • a terminal device in a sixth aspect, includes a processor; and a memory coupled to the processing unit and storing instructions thereon, the instructions, when executed by the processing unit, causing the device to perform the method according to the second aspect.
  • a terminal device in a seventh aspect, includes a processor; and a memory coupled to the processing unit and storing instructions thereon, the instructions, when executed by the processing unit, causing the device to perform the method according to the third aspect.
  • a network device includes a processor; and a memory coupled to the processing unit and storing instructions thereon, the instructions, when executed by the processing unit, causing the device to perform the method according to the fourth aspect.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the first aspect.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the second aspect.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the third aspect.
  • a computer readable medium having instructions stored thereon, the instructions, when executed on at least one processor, causing the at least one processor to carry out the method according to the fourth aspect.
  • Fig. 1A is a schematic diagram of a communication environment in which embodiments of the present disclosure can be implemented
  • Fig. 1B is a schematic diagram illustrating a process for channel and interference measurements
  • Fig. 2 shows a flowchart of an example method in accordance with some embodiments of the present disclosure
  • Fig. 3A shows a schematic diagram illustrating resources configured for CM and IM according to some embodiments of the present disclosure
  • Fig. 3B shows a schematic diagram illustrating a correspondence relationship between CMRs and IMRs according to some embodiments of the present disclosure
  • Fig. 4 shows a schematic diagram illustrating resources configured for CM and IM according to some embodiments of the present disclosure
  • Fig. 5A shows a schematic diagram illustrating resources configured for CM and IM according to some embodiments of the present disclosure
  • Fig. 5B shows a schematic diagram illustrating a correspondence relationship between CMRs and IMRs according to some embodiments of the present disclosure
  • Fig. 6 shows a flowchart of an example method in accordance with some embodiments of the present disclosure
  • Fig. 7A shows a schematic diagram illustrating ports allocated for CM and IM according to some embodiments of the present disclosure
  • Fig. 7B shows a schematic diagram illustrating a correspondence relationship between CMR and IMR according to some embodiments of the present disclosure
  • Fig. 8 shows a flowchart of an example method in accordance with some embodiments of the present disclosure
  • Fig. 9A shows a schematic diagram illustrating a group of resources configured for SINR measurement according to some embodiments of the present disclosure
  • Fig. 9B shows a schematic diagram illustrating a group of resources configured for SINR measurement according to some embodiments of the present disclosure
  • Fig. 10 shows a flowchart of an example method in accordance with some embodiments of the present disclosure.
  • Fig. 11 is a simplified block diagram of a device that is suitable for implementing embodiments of the present disclosure.
  • the term “network device” or “base station” refers to a device which is capable of providing or hosting a cell or coverage where terminal devices can communicate.
  • a network device include, but not limited to, a Node B (NodeB or NB) , an Evolved NodeB (eNodeB or eNB) , a NodeB in new radio access (gNB) a Remote Radio Unit (RRU) , a radio head (RH) , a remote radio head (RRH) , a low power node such as a femto node, a pico node, and the like.
  • NodeB Node B
  • eNodeB or eNB Evolved NodeB
  • gNB NodeB in new radio access
  • RRU Remote Radio Unit
  • RH radio head
  • RRH remote radio head
  • a low power node such as a femto node, a pico node, and the like.
  • terminal device refers to any device having wireless or wired communication capabilities.
  • Examples of the terminal device include, but not limited to, user equipment (UE) , personal computers, desktops, mobile phones, cellular phones, smart phones, personal digital assistants (PDAs) , portable computers, image capture devices such as digital cameras, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like.
  • UE user equipment
  • PDAs personal digital assistants
  • portable computers image capture devices such as digital cameras, gaming devices, music storage and playback appliances, or Internet appliances enabling wireless or wired Internet access and browsing and the like.
  • values, procedures, or apparatus are referred to as “best, ” “lowest, ” “highest, ” “minimum, ” “maximum, ” or the like. It will be appreciated that such descriptions are intended to indicate that a selection among many used functional alternatives can be made, and such selections need not be better, smaller, higher, or otherwise preferable to other selections.
  • TS 38.214 has specified the following: If the UE is configured with a CSI-ReportConfig with reportQuantity set to "cri-RSRP" , or "none" and if the CSI-ResourceConfig for channel measurement (higher layer parameter resourcesForChannelMeasurement) contains a NZP-CSI-RS-ResourceSet that is configured with the higher layer parameter repetition and without the higher layer parameter trs-Info, the UE can only be configured with the same number (1 or 2) of ports with the higher layer parameter nrofPorts for all CSI-RS resources within the set.
  • RSRP reference signal received power
  • SS-SINR secondary synchronization SINR
  • channel state information SINR is defined as the linear average over the power contribution (in [W] ) of the resource elements carrying CSI reference signals divided by the linear average of the noise and interference power contribution (in [W] ) over the resource elements carrying CSI reference signals reference signals within the same frequency bandwidth.
  • CSI resource and Synchronization Signal/Physical Broadcast Channel block (SSB) resource may be configured for SINR measurement.
  • SSB Synchronization Signal/Physical Broadcast Channel block
  • QCL-TypeD means spatial receiving (RX) beam) .
  • NZP CSI-RS resource (s) is used for interference measurement, the UE may assume that the NZP CSI-RS resource for channel measurement and the CSI-RS resource and/or NZP CSI-RS resource (s) for interference measurement configured for one CSI reporting are quasi co-located with respect to ′QCL-TypeD′ .
  • each CSI-RS resource for channel measurement is resource-wise associated with a CSI-IM resource by the ordering of the CSI-RS resource and CSI-IM resource in the corresponding resource sets.
  • the number of CSI-RS resources for channel measurement equals to the number of CSI-IM resources.
  • SINR measurement and reporting there still remain several issues to be studied. For example, there is a need to specify the reporting content, e.g. whether CSI resource indicator/SSB resource indicator (CRI/SSBRI) is reported, whether differential group/non-group reporting is applied, and whether L1-RSRP is reported.
  • the interference measurement mechanism also needs to be studied.
  • New resource configuration for SINR based beam reporting is proposed.
  • different groups of resources are configured as resources for CM, which may also called channel measurement resource (CMR) and as resources for IM, which may also called interference measurement resource (IMR) , respectively.
  • CMR channel measurement resource
  • IMR interference measurement resource
  • different antenna ports associated with a resource configured by a network device are configured for channel measurement and interference measurement, respectively.
  • CM and IM are performed on signals received with each resource of a group of resources and particular resources are selected based on the CM and IM to report the channel quality to the network device. In this way, interference measurement for SINR based beam reporting is enabled.
  • Fig. 1A shows an example communication network 100 in which embodiments of the present disclosure can be implemented.
  • the network 100 includes a network device 110 and a terminal device 120 served by the network device 110.
  • the serving area of the network device 110 is called as a cell 102.
  • the network 100 may include any suitable number of network devices and terminal devices adapted for implementing embodiments of the present disclosure.
  • one or more terminal devices may be located in the cell 102 and served by the network device 110.
  • the network device 110 can communicate data and control information to the terminal device 120 and the terminal device 120 can also communication data and control information to the network device 110.
  • a link from the network device 110 to the terminal device 120 is referred to as a downlink (DL) or a forward link, while a link from the terminal device 120 to the network device 110 is referred to as an uplink (UL) or a reverse link.
  • DL downlink
  • UL uplink
  • the network 100 may be a Code Division Multiple Access (CDMA) network, a Time Division Multiple Address (TDMA) network, a Frequency Division Multiple Access (FDMA) network, an Orthogonal Frequency-Division Multiple Access (OFDMA) network, a Single Carrier-Frequency Division Multiple Access (SC-FDMA) network or any others.
  • CDMA Code Division Multiple Access
  • TDMA Time Division Multiple Address
  • FDMA Frequency Division Multiple Access
  • OFDMA Orthogonal Frequency-Division Multiple Access
  • SC-FDMA Single Carrier-Frequency Division Multiple Access
  • Communications discussed in the network 100 may use conform to any suitable standards including, but not limited to, New Radio Access (NR) , Long Term Evolution (LTE) , LTE-Evolution, LTE-Advanced (LTE-A) , Wideband Code Division Multiple Access (WCDMA) , Code Division Multiple Access (CDMA) , cdma2000, and Global System for Mobile Communications (GSM) and the like.
  • NR New Radio Access
  • LTE Long Term Evolution
  • LTE-A LTE-Evolution
  • WCDMA Wideband Code Division Multiple Access
  • CDMA Code Division Multiple Access
  • GSM Global System for Mobile Communications
  • the communications may be performed according to any generation communication protocols either currently known or to be developed in the future. Examples of the communication protocols include, but not limited to, the first generation (1G) , the second generation (2G) , 2.5G, 2.75G, the third generation (3G) , the fourth generation (4G) , 4.5G, the fifth generation (5G) communication protocols.
  • the techniques described herein may be used
  • the network device 110 is configured to implement beamforming technique and transmit signals to the terminal device 120 in a plurality of transmitting (TX) beams, one of which is shown as a beam 105.
  • the terminal device 120 is configured to receive the signals transmitted by the network device 110 in a plurality of RX beams, one of which is shown as a beam 106.
  • Fig. 1B is a schematic diagram illustrating a process 150 for channel and interference measurements.
  • the network device 110 transmits 155 reference signals such as CSI-RSs to the terminal device 120.
  • SSB may also be used for channel measurement.
  • a plurality of reference signals may be transmitted 155 both for channel measurement and interference measurement.
  • the terminal device 120 receives the reference signals with CMRs and IMRs configured by the network device 110.
  • the configurations of the CMRs and IMRs may be signaled to the terminal device 120 by, for example, Radio Resource Control (RRC) signaling, media access control (MAC) control element (CE) or downlink control information (DCI) .
  • RRC Radio Resource Control
  • MAC media access control
  • CE control element
  • DCI downlink control information
  • the terminal device 120 performs 160 channel and interference measurements on the received reference signals to determine the channel quality (e.g. SINR) .
  • the terminal device 120 transmits 165 to the network device 110 results of the channel and interference measurements, for example,
  • FIG. 2 illustrates a flowchart of an example method 200 in accordance with some embodiments of the present disclosure.
  • the method 200 can be implemented at the terminal device 120 shown in Fig. 1A. It is to be understood that the method 200 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard. For the purpose of discussion, the method 200 will be described with reference to Fig. 1A.
  • the terminal device 120 performs channel measurement on a first signal.
  • the first signal is received from a network device 110 in a beam with a first resource of a first group of resources.
  • the first group of resources is configured by the network device 110 for channel measurement. Additionally, the terminal device 120 may perform channel measurements on other signals received with other resources of the first group of resources.
  • the term “group of resources” may refer to a resource set in some embodiments (e.g. the embodiments described with reference to Figs. 3A and 3B and Fig. 4) and may refer to a subset of resources in some other embodiments (e.g. the embodiments described with reference to Figs. 5A and 5B) .
  • the first group of resources may be CSI resources, which may include CSI-RS resources and CSI-IM resources. Accordingly, the first signal may be a CSI-RS. In some other embodiments, the first group of resources may be SSB resources. Accordingly, the first signal may be a SSB. It is to be noted that other resource suitable for channel and interference measurement may also be configured by the network device 110.
  • the terminal device 120 determines, based on the first resource, a second resource from a second group of resources configured for interference measurement.
  • the second group of resources is different from the first group of resources.
  • correspondence between resources in the first and second groups of resources may be preconfignred by the network device 110.
  • a resource correspondence relationship configured by the network device 110 may indicate a correspondence between indications of resources in the first group and indications of resources in the second group.
  • the terminal device 120 may determine a first indication of the first resource. The terminal device 120 may then select, based on the resource correspondence relationship, the second resource from the second group of resources. The second indication of the second resource may match the first indication of the first resource.
  • the resource correspondence relationship may be considered as a resource-wise mapping between the resources in the first and second groups.
  • the first group of resources and the second group of resources belong to a same resource set.
  • the first group of resources may be a subset of resources in a resource set and the second group of resources may be another subset of resources in that resource set.
  • CSI resource set may be configured by the network device 110 for this purpose.
  • the first resource may be a CSI resource in the resource set and the second resource is another CSI resource in that resource set.
  • the first group of resources and the second group of resources belong to different resource sets.
  • the first group of resources is a first resource set and the second group of resources is a second resource set.
  • the number of resources in the first resource set is equal to the number of resources in the second resource set.
  • the second resource may be determined based on the correspondence relationship configured by the network device 110, as described above.
  • the number of resources in the first resource set is larger than the number of resources in the second resource set.
  • the correspondence relationship (or mapping) between resources in the first and second resource sets may be not configured by the network device 110 and thus the terminal device 120 may need to associate resources in the first resource set for CM with resources in the second resource set for IM.
  • the first resource may comprise at least one of a CSI resource and a SSB resource
  • the second resource may be a further CSI resource
  • the terminal device 120 performs the interference measurement on a second signal.
  • the second signal is received from the network device in the beam with the second resource. Since the CMR and IMR configured for one CSI reporting are quasi co-located with respect to ‘QCL-TypeD’ , the beam associated with the first resource and the beam associated with the second resource may be the same or, in other words, quasi co-located with each other with respect to ‘QCL-TypeD’ .
  • the terminal device 120 may determine a channel quality based on the channel and interference measurements. For example the terminal device 120 may determine a value of SINR based on the channel measurement performed at block 210 and interference measurements performed at block 230. The terminal device 120 may then transmit at least the channel quality to the network device 110. An indication of the first resource may also be transmitted along with the channel quality, for example, include in a CSI report. The indication of the first resource may be CRI or SSBI.
  • Fig. 3A shows a schematic diagram 300 illustrating resources configured for CM and IM according to some embodiments of the present disclosure.
  • a CSI resource set 301 which is configured by the network device 110 for channel measurement, comprises CSI resources 311-314.
  • CRI for CSI resource 311 may be 1
  • CRI for CSI resource 312 may be 2
  • CRI for CSI resource 313 may be 3
  • CRI for CSI resource 314 may be 4.
  • RX beams 321-324 are configured to be associated with CSI resources 311-314, respectively. Beam index 1-4 are shown to identify different RX beams.
  • a CSI resource set 302, which is configured by the network device 110 for inference measurement, comprises CSI resources 315-316. In this case, CSI resources 315-316 are not preconfigured with any RX beam.
  • the terminal device 120 may receive CSI-RSs from the network device 110 on each resource in the CSI resource set 301 and perform channel measurement on the received CSI-RSs.
  • the terminal device 120 may select N (two, in the example shown) CSI resources from the CSI resource set 301 based on the channel measurement-.
  • the selected N CSI resources may be based on the RSRP.
  • the number N refers to the number of CSI resources, of which CRIs are to be reported to the network device 110, and is configured by the network device 110.
  • CSI resources 311 and 313 are selected by the terminal device 120.
  • the terminal device 120 may associate the CSI resources 311 and 313 with the CSI resources in CSI resource set 302.
  • the indications of the CSI resources 311 and 313, which in this case are the CRIs of the CSI resources 311 and 313, will be reported to the network device 110 such as in an CSI report, after the channel and interference measurements.
  • the terminal device 120 may determine the order of the CRIs of the CSI resources 311 and 313 in for example the CSI report and determine the association between the resources in set 301 and set 302 based on the order.
  • the terminal device 120 may determine that the CRI of the CSI resource 311 precedes the CRI of the CSI resource 313.
  • the beam with an index of 1 will be the RX beam of the first reported CSI-RS resource and the beam with an index of 3 will be the RX beam of the second reported CSI-RS resource.
  • the terminal device 120 may determine that CSI resource 315 (i.e., the first resource in set 302) is associated with the beam with an index of 1 and that CSI resource 316 (i.e., the second resource in set 302) is associated with the beam with an index of 3.
  • the terminal device 120 may receive CSI-RS on CSI resource 315 in the beam with an index of 1 and perform interference measurement accordingly. SINR may then be determined based on the channel measurement with the CSI resource 311 and the interference measurement with the CSI resource 315. The terminal device 120 may further receive CSI-RS on CSI resource 316 in the beam with an index of 3 and perform interference measurement accordingly.
  • the number of CMRs (for example, the number of resources in the set 301 for CM) Ks may be larger than or equal to the number of IMRs (for example, the number of resources on the set 302 for IM) Ki, and Ki may be larger than or equal to N.
  • both the CMRs and IMRs are configured as CSI resources.
  • CSI resources In the example shown in Fig. 3A, both the CMRs and IMRs are configured as CSI resources.
  • a mixed configuration may be employed.
  • SSB resources may be configured by the network device 110 for channel measurement and CSI resources may be configured for interference measurement.
  • Fig. 3B shows a schematic diagram 350 illustrating a correspondence relationship between CMRs and IMRs according to some embodiments of the present disclosure.
  • CMRs 331-334 may correspond to each of the CSI resources 311-314, respectively, and IMRs 335-336 may correspond to each of the CSI resources 315-316, respectively.
  • the correspondence relationship between the CMRs and IMRs is not predetermined by the network device 110 and thus the mapping between CMRs 331-334 and IMRs 335-336 will be determined by the terminal device 120 as described above with reference to Fig. 3A.
  • the terminal device 120 may determine that the CMR 331 (CMR #1) is associated with the IMR 335 (IMR #3) and the CMR 333 (CMR #3) is associated with the IMR 336 (IMR #2) .
  • CMR 332 and CMR 334 are not associated with any IMR.
  • Fig. 4 shows a schematic diagram 400 illustrating resources configured for CM and IM according to some embodiments of the present disclosure.
  • More than one resource sets may be configured for beam measurement based on a set association between CMRs and IMRs.
  • a resource set may be configured by the network device 110 for channel measurement and one or more resource sets may be configured for interference measurement.
  • the example shown in Fig. 4 is described with respect to CSI resources.
  • a CSI resource set 401 is configured for channel measurement, and CSI resource sets 402 and 403 are configured for interference measurement.
  • the CSI resource set 401 comprises CSI resources 411 and 412.
  • RX beams 421 (with an index of 1) and 422 (with an index of 2) associated with CSI resources 411 and 412 are configured by the network device 110.
  • the CSI resource set 402 for IM comprises CSI resources 413 and 414.
  • RX beams 423 (with an index of 1) and 424 (with an index of 2) associated with CSI resources 413 and 414 are also configured by the network device 110.
  • the CSI resource set 403 for IM comprises CSI resources 415 and 416.
  • RX beams 425 (with an index of 1) and 426 (with an index of 2) associated with CSI resources 415 and 416 are configured by the network device 110.
  • CSI resources 423 and 425 are configured to be quasi co-located with CSI resource 421 with respect to ‘QCL-TypeD’
  • CSI resources 424 and 426 are configured to be quasi co-located with CSI resource 421 with respect to ‘QCL-TypeD’ .
  • the resource set for CM is resource-wisely mapped to and resource-wisely quasi co-located with the resource set (s) for IM.
  • the correspondence relationship between the CMRs (CSI resources 411-412) and IMRs (CSI resources 413-416) is configured and predetermined by the network device 110.
  • the CSI resources 411, 413 and 415 may all have a CRI of for example 1 and the CSI resources 412, 414 and 416 may all have a CRI of for example 2.
  • the terminal device 120 may receive CSI-RSs in RX beams 421 and 422 and perform channel measurement accordingly. Based on the predetermined correspondence relationship, the CSI resources 413 and 415 are the IMRs corresponding to the CSI resource 411, and the CSI resources 414 and 416 are the IMRs corresponding to the CSI resource 412. Interference measurements may be performed with these CSI resources.
  • the terminal device 120 may determine a SINR based on the channel and interference measurements and report information about the selected beam (s) (for example, CRI) and the respective SINR to the network device 110.
  • both the CMRs and IMRs are configured as CSI resources.
  • CSI resources may be configured by the network device 110 for channel measurement
  • CSI resources which are quasi co-located with SSB resources with respect to ‘QCL-TypeD’ , may be configured for interference measurement. It is to be understood that although two resource sets for interference measurement are shown in Fig. 4, it is only for illustration purpose without any limitation and more or less resource sets can be configured.
  • Fig. 5A shows a schematic diagram 500 illustrating resources configured for CM and IM according to some embodiments of the present disclosure.
  • Fig. 5B shows a schematic diagram 550 illustrating a correspondence relationship between CMRs and IMRs according to these embodiments.
  • Fig. 5A shows a NZP-CSI resource set 501, which comprises NZP-CSI resources 511-514.
  • a first subset A of the NZP-CSI resources 511-514 is configured for channel measurement.
  • the NZP-CSI resources 511 (with a CRI of 1A, see Fig. 5B) and 513 (with a CRI of 2A, see Fig. 5B) are configured for channel measurement.
  • a second subset B of the NZP-CSI resources 511-514 is configured for interference measurement.
  • the NZP-CSI resources 512 (with a CRI of 1B, see Fig. 5B) and 514 (with a CRI of 2B, see Fig. 5B) are configured for interference measurement.
  • RX beams associated with the NZP-CSI resources 511-514 are configured by the network device.
  • the resource for channel measurement and the corresponding resource (s) for interference measurement are associated with the same RX beam.
  • RX beam 521 associated with the NZP-CSI resource 511 and RX beam 522 associated with the NZP-CSI resource 512 both have an index of 1.
  • RX beam 523 associated with the NZP-CSI resource 513 and RX beam 524 associated with the NZP-CSI resource 514 both have an index of 2.
  • the NZP-CSI resource 521 is configured to be quasi co-located with the NZP-CSI resource 522 with respect to ‘QCL-TypeD’
  • the NZP-CSI resource 523 is configured to be quasi co-located with the NZP-CSI resource 524 with respect to ‘QCL-TypeD’ .
  • the resources for CM are resource-wisely mapped to and resource-wisely quasi co-located with the resources for IM.
  • the correspondence relationship between the CMRs (NZP-CSI resources 521 and 523) and IMRs (NZP-CSI resources 522 and 524) is configured and predetermined by the network device 110. As shown in Fig.
  • the NZP-CSI resource 511 with a CRI of 1A is configured as the CMR 541 (CMR #1) and the NZP-CSI resource 512 with a CRI of 1B is configured as the IMR 542 (IMR #1) corresponding to CMR #1;
  • the NZP-CSI resource 513 with a CRI of 2A is configured as the CMR 543 (CMR #2) and the NZP-CSI resource 514 with a CRI of 2B is configured as the IMR 544 (IMR #2) corresponding to CMR #2.
  • the CRI reported to the network device 110 may refer to a CSI resource pair/a subset in the CSI resource set.
  • a reported CRI of 1 may refer to the NZP-CSI resources 511 and 512 and a reported CRI of 2 may refer to the NZP-CSI resources 513 and 514.
  • the resource for CM may have more than one corresponding resource for IM.
  • the resource 511 for CM may have further corresponding resource for IM.
  • the channel and interference measurements are performed with different resources. In this way, the SINR based beam reporting is enabled.
  • a resource may be associated with a plurality of antenna ports, which is also referred to as ports herein. Therefore, different ports associated with a resource may be used to perform channel and interference measurement, respectively.
  • Fig. 6 shows a flowchart of an example method 600 in accordance with some embodiments of the present disclosure.
  • the method 600 can be implemented at the terminal device 120 shown in Fig. 1A. It is to be understood that the method 600 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard. For the purpose of discussion, the method 600 will be described with reference to Fig. 1A.
  • the terminal device 120 determines first and second ports associated with a resource configured by the network device 110.
  • the first port is configured for channel measurement and the second port is configured for interference measurement.
  • CSI resources 711 and 712 are configured for channel and interference measurements.
  • the CSI resource 711 has 5 ports associated therewith, which are the ports 721-725, and the CSI resource 712 has 5 ports associated therewith, which are the ports 731-735.
  • a subset of the ports may be configured for channel measurement.
  • the port 722 associated with the CSI resource 711 and the port 732 associated with the CSI resource 712 are configured for channel measurement.
  • Another subset of the ports may be configured for interference measurement.
  • the port 723 associated with the CSI resource 711 and the port 733 associated with the CSI resource 712 are configured for interference measurement.
  • the CSI resource 711 is configured to be associated with a RX beam 726 with an index of 1
  • the CSI resource 712 is configured to be associated with a RX beam 736 with an index of 2.
  • Fig. 7B shows a schematic diagram 750 illustrating a correspondence relationship between CMR and IMR according to these embodiments.
  • the correspondence in Fig. 7B is shown with respect to the CSI resource 711, of which the CRI is 1.
  • both the CMR 741 (CMR #1) and the IMR 742 (IMR #1) correspond to the CSI resource 711.
  • the terminal device 120 at block 610 may determine that the port 722 is configured for CM and the port 723 is configured for IM.
  • the terminal device 120 performs the channel measurement on a first stream of a signal received from a network device 110 via the first port and performs interference measurement on a second stream of the signal received from the network device 110 via the second port. For example, when receiving CSI-RS with the CSI resource 711, the terminal device 120 may perform the channel measurement via the port 722 and the interference measurement via the port 723.
  • the terminal device 120 may determine a channel quality based on the channel and interference measurements, and transmit at least the channel quality to the network device. For example, the terminal device 120 may determine the SINR based on the CM via the port 722 and the IM via the port 723. The terminal device 120 may then transmit the determined SINR along with an indication of the CSI resource 711 (e.g. CRI) to the network device 110.
  • the CSI resource 711 e.g. CRI
  • the CRI reported to the network device 110 may refer to a CSI resource in a CSI resource set. It is to be understood that the number of ports shown in Fig. 7A is only for illustration without any limitation.
  • the resource configured by the network device 110 may be associated with more or less ports.
  • the number of resources for SINR measurement is not increased. Instead, the number of ports needs to be increased. In this way, SINR measurement can be achieved in a time saving and resource saving manner.
  • channel measurement and interference measurement are performed either with different resources or via difference ports. In some embodiments, both the channel and interference measurements may be performed on the same resource. Such embodiments are now described with reference to Figs. 8, 9A, 9B and 10.
  • Fig. 8 shows a flowchart of an example method 800 in accordance with some embodiments of the present disclosure.
  • the method 800 can be implemented at the terminal device 120 shown in Fig. 1A. It is to be understood that the method 800 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard. For the purpose of discussion, the method 800 will be described with reference to Fig. 1A.
  • the terminal device 120 performs channel and interference measurements on signals received from a network device 110 with a group of resources.
  • the signals may be transmitted by the network device 110 in a plurality of TX beams, i.e. a beam for each resource of the group of resources.
  • the signals may be received by the terminal device 120 with the group of resources in a same RX beam.
  • the resources of the group of resources are quasi co-located with each other with respect to ‘QCL-TypeD’ .
  • the terminal device 120 selects, based on the channel and interference measurements, a first resource and a second resource from the plurality of resources.
  • the first resource is associated with the channel measurement and the second resource is associated with the interference measurement.
  • the terminal device 120 transmits, to the network device 110, indications of the first and second resources, for example, the CRIs of CSI resources.
  • the terminal device 120 may further determine a channel quality (e.g. SINR) based on the channel measurement with the first resource and the interference measurement with the second resource; and transmit the channel quality for example the SINR to the network device 110.
  • a channel quality e.g. SINR
  • Fig. 9A shows a schematic diagram 900 illustrating a group 901 of resources configured for SINR measurement according to some embodiments of the present disclosure.
  • Fig. 9B shows a schematic diagram 950 illustrating a group 902 of resources configured for SINR measurement according to some embodiments of the present disclosure.
  • the group 901 may has a QCL group-based RS configuration, which means that resources 911-914 are quasi co-located with each other with respect to ‘QCL-TypeD’ .
  • the terminal device 120 may perform both CM and IM on RS received with each of the resources 911-914.
  • the RSs on different resources 911-914 are transmitted by the network device 110 in different beams. That is, the resources 911-914 correspond to different TX beams at the network device 110.
  • the terminal device 120 may then select at least two resources from the group 901.
  • the resource 912 is determined to be associated with CM and the resource 913 is determined to be associated with IM.
  • the signal received with the resource 912 may have a relatively better quality (e.g., the best quality among the resources 911-914) , and that the interference or noise on the resource 913 is relatively low (e.g., the least interference among the resources 911-914) .
  • the inter-TX-beam interference e.g., the interference when receiving the resource 913 transmitted on a beam caused by another transmission beam of the resource 913 is measured.
  • the resource 922 is determined to be associated with CM, and the resources 921 and 923 are determined to be associated with IM.
  • the number of resources selected by the terminal device 120 may be configured by the network device 110 in advance. Different from the embodiments above, in these embodiments, the indications or indices for signal (CM) and for interference/noise (IM) may be reported independently. Table 1 shows an example SINR-reporting format.
  • Table 1 an example SINR-reporting format
  • each column corresponds to different number of beams to be reported and each row corresponds to different beam pair to be reported.
  • the example shown in Fig. 9A corresponds to the format at the cross element of the column ‘1 st beam pair’ and the row ‘Best 1’
  • the example shown in Fig. 9B corresponds to the format at the cross element of the column ‘1 st beam pair’ and the row ‘Best 2’ .
  • the CRI of the resource 912 and the CRI of the resource 913 are included in the field ‘index’ with the CRI of the resource 912 preceding the CRI of the resource 913.
  • the SINR determined based on the CM and IM on these two resources may be included in the field ‘value’ . Differential SINR value can be reported.
  • the field ‘value’ may be populated by the difference between the SINRs determined based on the two beam pairs.
  • ‘ (d) SNIR’ as shown in Table 1 can be the differential value of SNIRs between the 1 st beam pair and 2 nd beam pair.
  • the network device 110 may determine a beam corresponding to the resource 912. For purpose of discussion, this beam is also referred to as a first beam. The network device 110 may further determine a beam corresponding to the resource 913. For purpose of discussion, this beam is also referred to as a second beam. The network device 110 may receive from another terminal device which determines the resource 912 as the second beam (associated with IM) and the resource 913 as the first beam (associated with CM) . Then, the network device 110 may utilize the first beam for further communication with the terminal device 120 and utilize the second beam for communication with the other terminal device served by the network device 110.
  • Fig. 10 shows a flowchart of an example method 1000 in accordance with some embodiments of the present disclosure.
  • the method 1000 can be implemented at the network device 110 shown in Fig. 1A. It is to be understood that the method 1000 may include additional blocks not shown and/or may omit some blocks as shown, and the scope of the present disclosure is not limited in this regard. For the purpose of discussion, the method 1000 will be described with reference to Fig. 1A.
  • the network device 110 transmits, to the terminal device 120, signals in a plurality of beams with a group of resources, for example, group 901. Each of the plurality of beams corresponds to one resource in the group of resources.
  • the network device 110 receives, from the terminal device 120, indications of first and second resources of the group of resources, the first resource being associated with a channel measurement performed by the terminal device 120 and the second resource being associated with an interference measurement performed by the terminal device 120.
  • the network device 110 may receive the CRIs of the resources 912 and 913.
  • the network device 110 determines first and second beams of the plurality of beams to enable communication between the network device 120 and the terminal device via the first beam and communication between the network device and a further terminal device via the second beam, the first beam corresponding to the first resource and the second beam corresponding to the second resource.
  • the CMRs and IMRs are not explicitly configured, and CM and IM are instead performed on each of the configured resources.
  • CSI resource and SSB resource are only for purpose of illustration and any suitable number of resources may be configured for channel and interference measurement.
  • CSI resource and SSB resource are mentioned, other types of resources suitable for channel and interference measurements may be envisaged by a person skilled in the art.
  • aspects descried above with respect to different embodiments may be combined.
  • Fig. 11 is a simplified block diagram of a device 1100 that is suitable for implementing embodiments of the present disclosure.
  • the device 1100 can be considered as a further example implementation of the network device 110 or the terminal device 120 as shown in Fig. 1A. Accordingly, the device 1100 can be implemented at or as at least a part of the network device 110 or the terminal device 120.
  • the device 1100 includes a processor 1110, a memory 1120 coupled to the processor 1110, a suitable transmitter (TX) and receiver (RX) 1140 coupled to the processor 1110, and a communication interface coupled to the TX/RX 1140.
  • the memory 1110 stores at least a part of a program 1130.
  • the TX/RX 1140 is for bidirectional communications.
  • the TX/RX 1140 has at least one antenna to facilitate communication, though in practice an Access Node mentioned in this application may have several ones.
  • the communication interface may represent any interface that is necessary for communication with other network elements, such as X2 interface for bidirectional communications between eNBs, S1 interface for communication between a Mobility Management Entity (MME) /Serving Gateway (S-GW) and the eNB, Un interface for communication between the eNB and a relay node (RN) , or Uu interface for communication between the eNB and a terminal device.
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • Un interface for communication between the eNB and a relay node (RN)
  • Uu interface for communication between the eNB and a terminal device.
  • the program 1130 is assumed to include program instructions that, when executed by the associated processor 1110, enable the device 1100 to operate in accordance with the embodiments of the present disclosure, as discussed herein with reference to Figs. 2, 6, 8 and 10.
  • the embodiments herein may be implemented by computer software executable by the processor 1110 of the device 1100, or by hardware, or by a combination of software and hardware.
  • the processor 1110 may be configured to implement various embodiments of the present disclosure.
  • a combination of the processor 1110 and memory 1110 may form processing means 1150 adapted to implement various embodiments of the present disclosure.
  • the memory 1110 may be of any type suitable to the local technical network and may be implemented using any suitable data storage technology, such as a non-transitory computer readable storage medium, semiconductor-based memory devices, magnetic memory devices and systems, optical memory devices and systems, fixed memory and removable memory, as non-limiting examples. While only one memory 1110 is shown in the device 1100, there may be several physically distinct memory modules in the device 1100.
  • the processor 1110 may be of any type suitable to the local technical network, and may include one or more of general purpose computers, special purpose computers, microprocessors, digital signal processors (DSPs) and processors based on multicore processor architecture, as non-limiting examples.
  • the device 1100 may have multiple processors, such as an application specific integrated circuit chip that is slaved in time to a clock which synchronizes the main processor.
  • various embodiments of the present disclosure may be implemented in hardware or special purpose circuits, software, logic or any combination thereof. Some aspects may be implemented in hardware, while other aspects may be implemented in firmware or software which may be executed by a controller, microprocessor or other computing device. While various aspects of embodiments of the present disclosure are illustrated and described as block diagrams, flowcharts, or using some other pictorial representation, it will be appreciated that the blocks, apparatus, systems, techniques or methods described herein may be implemented in, as non-limiting examples, hardware, software, firmware, special purpose circuits or logic, general purpose hardware or controller or other computing devices, or some combination thereof.
  • the present disclosure also provides at least one computer program product tangibly stored on a non-transitory computer readable storage medium.
  • the computer program product includes computer-executable instructions, such as those included in program modules, being executed in a device on a target real or virtual processor, to carry out the process or method as described above with reference to any of Figs. 2, 6, 8 and 10.
  • program modules include routines, programs, libraries, objects, classes, components, data structures, or the like that perform particular tasks or implement particular abstract data types.
  • the functionality of the program modules may be combined or split between program modules as desired in various embodiments.
  • Machine-executable instructions for program modules may be executed within a local or distributed device. In a distributed device, program modules may be located in both local and remote storage media.
  • Program code for carrying out methods of the present disclosure may be written in any combination of one or more programming languages. These program codes may be provided to a processor or controller of a general purpose computer, special purpose computer, or other programmable data processing apparatus, such that the program codes, when executed by the processor or controller, cause the functions/operations specified in the flowcharts and/or block diagrams to be implemented.
  • the program code may execute entirely on a machine, partly on the machine, as a stand-alone software package, partly on the machine and partly on a remote machine or entirely on the remote machine or server.
  • the above program code may be embodied on a machine readable medium, which may be any tangible medium that may contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
  • the machine readable medium may be a machine readable signal medium or a machine readable storage medium.
  • a machine readable medium may include but not limited to an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any suitable combination of the foregoing.
  • machine readable storage medium More specific examples of the machine readable storage medium would include an electrical connection having one or more wires, a portable computer diskette, a hard disk, a random access memory (RAM) , a read-only memory (ROM) , an erasable programmable read-only memory (EPROM or Flash memory) , an optical fiber, a portable compact disc read-only memory (CD-ROM) , an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.
  • RAM random access memory
  • ROM read-only memory
  • EPROM or Flash memory erasable programmable read-only memory
  • CD-ROM portable compact disc read-only memory
  • magnetic storage device or any suitable combination of the foregoing.

Abstract

La présente invention concerne des procédés, des dispositifs et des supports lisibles par ordinateur pour effectuer une mesure SINR. Le procédé comprend les étapes suivantes : effectuer une mesure de canal sur un premier signal, le premier signal étant reçu d'un dispositif de réseau dans un faisceau avec une première ressource d'un premier groupe de ressources (210). Déterminer, sur la base de la première ressource, une seconde ressource à partir d'un second groupe de ressources configuré pour une mesure d'interférence (220). Effectuer la mesure d'interférence sur un second signal, le second signal étant reçu du dispositif de réseau dans le faisceau avec la seconde ressource (230).
PCT/CN2018/118640 2018-11-30 2018-11-30 Procédé, dispositif et support lisible par ordinateur pour effectuer une mesure sinr WO2020107423A1 (fr)

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Citations (4)

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US20180034612A1 (en) * 2016-07-29 2018-02-01 Asustek Computer Inc. Method and apparatus for channel state information report for beam operation in a wireless communication system
CN107888268A (zh) * 2016-09-30 2018-04-06 华为技术有限公司 Csi测量方法及装置
US20180102823A1 (en) * 2011-11-07 2018-04-12 Huawei Technologies Co., Ltd. Method and system for measuring a channel quality indicator, user equipment and base station
US20180175992A1 (en) * 2015-06-17 2018-06-21 Telefonaktiebolaget Lm Ericsson (Publ) A Wireless Device, A Radio Network Node, And Methods Therein

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180102823A1 (en) * 2011-11-07 2018-04-12 Huawei Technologies Co., Ltd. Method and system for measuring a channel quality indicator, user equipment and base station
US20180175992A1 (en) * 2015-06-17 2018-06-21 Telefonaktiebolaget Lm Ericsson (Publ) A Wireless Device, A Radio Network Node, And Methods Therein
US20180034612A1 (en) * 2016-07-29 2018-02-01 Asustek Computer Inc. Method and apparatus for channel state information report for beam operation in a wireless communication system
CN107888268A (zh) * 2016-09-30 2018-04-06 华为技术有限公司 Csi测量方法及装置

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