WO2013063802A1 - Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante - Google Patents

Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante Download PDF

Info

Publication number
WO2013063802A1
WO2013063802A1 PCT/CN2011/081822 CN2011081822W WO2013063802A1 WO 2013063802 A1 WO2013063802 A1 WO 2013063802A1 CN 2011081822 W CN2011081822 W CN 2011081822W WO 2013063802 A1 WO2013063802 A1 WO 2013063802A1
Authority
WO
WIPO (PCT)
Prior art keywords
status information
channel status
power control
transmit power
message
Prior art date
Application number
PCT/CN2011/081822
Other languages
English (en)
Inventor
Erlin Zeng
Shuang TAN
Tommi Koivisto
Jari Mattila
Pengfei Sun
Original Assignee
Renesas Mobile Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Renesas Mobile Corporation filed Critical Renesas Mobile Corporation
Priority to PCT/CN2011/081822 priority Critical patent/WO2013063802A1/fr
Publication of WO2013063802A1 publication Critical patent/WO2013063802A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/247—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where the output power of a terminal is based on a path parameter sent by another terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/06—TPC algorithms
    • H04W52/14—Separate analysis of uplink or downlink
    • H04W52/146—Uplink power control
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/18—TPC being performed according to specific parameters
    • H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
    • H04W52/248—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters where transmission power control commands are generated based on a path parameter
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/54—Signalisation aspects of the TPC commands, e.g. frame structure
    • H04W52/58—Format of the TPC bits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/04—TPC
    • H04W52/30—TPC using constraints in the total amount of available transmission power
    • H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading

Definitions

  • Embodiments of the present invention relate generally to wireless communication technology and, more particularly, to a method, apparatus and computer program product for triggering generation of channel status information based in part on a downlink grant.
  • Mobile terminals routinely communicate within communication networks via uplink transmissions.
  • mobile terminals may communicate enhanced Uplink Control Information (UCI) transmissions.
  • the benefits of the enhanced UCI may include increased uplink control overhead due to multiple component carrier support and also a larger feedback overhead required by a Coordinated Multiple Point Transmission Reception (CoMP).
  • Channel status information (CSI) may be a type of UCI that is reported by a mobile terminal to a base station, to aid the downlink scheduling of the base station.
  • LTE Long Term Evolution
  • LTE Long Term Evolution
  • Control Information (DO) format for uplink grants.
  • a 1 -bit "CSI request" may be included in a DCI format 0, to inform a mobile terminal as to whether a CSI report is triggered via the uplink grant.
  • the control overhead may create a bottleneck within the system, as some of the communications to the mobile terminals may get blocked due to a lack of resources for downlink control signaling transmissions.
  • an UCI-only PUSCH is typically utilized for the situation in which a mobile terminal does not have uplink data in a buffer, this approach may have drawbacks associated with wasting Physical Downlink Control Channel (PDCCH) capacity by transmitting unnecessary uplink grants.
  • PDCCH Physical Downlink Control Channel
  • a method, apparatus and computer program product are therefore provided in accordance with an example embodiment to provide an efficient and reliable manner in which to trigger generation of channel status information based in part on a downlink message.
  • an example embodiment may facilitate reporting of channel status information by a mobile terminal (e.g., User Equipment (UE)) to a base station (e.g., an evolved node B(s) (eNBs)) in response to a downlink grant (e.g., a downlink message) received by the base station.
  • UE User Equipment
  • eNBs evolved node B
  • Facilitating triggering of CSI by the UE for reporting to the base station may enable the base station to perform downlink scheduling in an efficient manner.
  • Some example embodiments may support aperiodic triggering of CSI reports by a mobile terminal in response to a downlink grant provided to the mobile terminal by a base station.
  • the aperiodic triggering of CSI reports provided by a mobile terminal to a base station may help to lower control overhead, particularly during a period in which a mobile terminal may not have any uplink data to transmit to a base station.
  • the example embodiments may provide a beneficial resource allocation scheme that utilizes low control overhead, and may adjust the resources (e.g., physical uplink shared channel (PUSCH) resources) implicitly or explicitly for facilitating the provision of the generated CSI report(s) to a base station.
  • the example embodiments may enable a base station to utilize one or more transmit power control (TPC) states to facilitate triggering of the CSI reports by the mobile terminal.
  • TPC transmit power control
  • a method includes receiving a downlink control information message from a base station.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing a device to trigger generation of channel status information.
  • the method may also include triggering generation of the channel status information in response to detecting the content and enabling provision of the generated channel status information to the base station via an uplink communication.
  • an apparatus in another example embodiment, includes at least one processor and at least one memory including computer program code with the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to receive a downlink control information message from a base station.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing the apparatus to trigger generation of channel status information.
  • the at least one memory and the computer program code are also configured to, with the at least one processor cause the apparatus of this embodiment to trigger generation of the channel status information in response to detecting the content and enabling provision of the generated channel status information to the base station via an uplink communication.
  • an apparatus in another example embodiment, includes means for receiving a downlink control information message from a base station.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing a device to trigger generation of channel status information.
  • the apparatus of this embodiment also includes means for triggering generation of the channel status information in response to detecting the content.
  • the apparatus of the embodiment also includes means for enabling provision of the generated channel status information to the base station via an uplink communication.
  • a method in another example embodiment, includes generating a downlink control information message.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing a device to trigger generation of channel status information.
  • the method may also include enabling provision of the generated message to the device to enable the device to trigger generation of the channel status information in response to detecting the content.
  • the method may also include receiving the generated channel status information from the device via an uplink communication.
  • an apparatus in another example embodiment, includes at least one processor and at least one memory including computer program code with the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to generating a downlink control information message.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing a device to trigger generation of channel status information.
  • the at least one memory and the computer program code are also configured to, with the at least one processor, cause the apparatus of this embodiment to enable provision of the generated message to the device to enable the device to trigger generation of the channel status information in response to detecting the content.
  • the at least one memory and the computer program code are also configured to, with the at least one processor, cause the apparatus of this embodiment to receive the generated channel status information from the device via an uplink communication.
  • an apparatus in another example embodiment, includes means for generating a downlink control information message.
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states and information redefining at least one of the transmit power control commands corresponding to one of the states to include content instructing a device to trigger generation of channel status information.
  • the apparatus of this embodiment may also include means for enabling provision of the generated message to the device to enable the device to trigger generation of the channel status information in response to detecting the content.
  • the apparatus of this embodiment may also include receiving the generated channel status information from the device via an uplink communication.
  • FIG. 1 is a diagram of a system according to an example embodiment of the invention
  • FIG. 2 is a schematic block diagram of an apparatus from the perspective of a base station in accordance with an example embodiment of the invention
  • FIG. 3 is a block diagram of an apparatus from the perspective of a terminal in accordance with an example embodiment of the invention.
  • FIG. 4 is a diagram of a table illustrating a redefined TPC state for triggering of channel status information according to an example embodiment of the invention
  • FIG. 5 is a diagram illustrating a redefined TPC field in a DCI format message according to an example embodiment of the invention
  • FIG. 6 illustrates a flowchart for enabling provision of an efficient and reliable manner in which to trigger generation of a CSI report based on a downlink grant from the perspective of a terminal according to an example embodiment of the invention
  • FIG. 7 illustrates a flowchart for enabling provision of an efficient and reliable manner in which to trigger generation of a CSI report based on a downlink grant from the perspective of a base station according to an example embodiment of the invention
  • FIG. 8 is a flowchart illustrating operations performed in accordance with one example embodiment of the invention.
  • FIG. 9 illustrates a flowchart of operations performed with another example embodiment of the invention.
  • circuitry refers to all of the following: (a) hardware-only circuit implementations (such as implementations in only analog and/or digital circuitry) and (b) to combinations of circuits and software (and/or firmware), such as (as applicable): (i) to a combination of processor(s) or (ii) to portions of processor(s)/software (including digital signal processor(s)), software, and memory(ies) that work together to cause an apparatus, such as a mobile phone or server, to perform various functions) and (c) to circuits, such as a microprocessor(s) or a portion of a microprocessor(s), that require software or firmware for operation, even if the software or firmware is not physically present.
  • circuitry would also cover an implementation of merely a processor (or multiple processors) or portion of a processor and its (or their) accompanying software and/or firmware.
  • circuitry would also cover, for example and if applicable to the particular claim element, a baseband integrated circuit or applications processor integrated circuit for a mobile phone or a similar integrated circuit in server, a cellular network device, or other network device.
  • search space(s) or “common search space(s)” may correspond to a set of CCE locations in which a UE may find its Physical Downlink Control Channels (PDCCHs).
  • the search space may be a different size for each PDCCH format.
  • the terms "separate dedicated and common search space(s)” or “UE-specific common search space(s)” may denote a dedicated search space configured for each UE (e.g., of a system or cell) individually.
  • all UEs e.g., of a system or cell may be informed of the extent of the common search space.
  • a UCI only PUSCH may typically be utilized in an instance in which a mobile terminal may not have uplink data available in a buffer and thus may waste PDCCH capacity by transmitting unnecessary uplink grants.
  • One possible manner in which to trigger a CSI report via a downlink grant is to extend a current downlink grant DCI format with the "CSI-request" field. This approach of extending the current downlink grant DCI format with a CSI-request field may be feasible for the PDCCH UE-specific common search space in which a DCI format size may be configured differently for each User Equipment (UE), such that a suitable number of bits for the CSI-request may be utilized in the downlink grant for a particular UE(s).
  • UE User Equipment
  • the existing common search space may be unable to facilitate addition of bits for a CSI-request field of an extended downlink grant.
  • the manner in which PUSCH resources for CSI reporting is indicated to a UE is generally undefined, as there is typically no resource allocation field for PUSCH in the DCI formats for a DL grant. As such, from a control payload size point of view, it is typically inefficient and impractical to extend the existing downlink grant DCI format with an extra resource allocation field for PUSCH.
  • some example embodiments may provide an efficient and reliable mechanism of triggering a CSI report via a downlink grant (also referred to herein as downlink message).
  • some example embodiments may determine the manner in which to trigger a CSI report(s) based in part in response to a downlink grant in the common search space.
  • some example embodiments may enable UEs to determine PUSCH resources for assignments in an instance in which the CSI report is triggered via a downlink grant (e.g., both in a common search space and/or a UE-specific search space) without any resource allocation field for the PUSCH.
  • a field(s) e.g., a 2 bit field
  • TPC Transmit Power Control
  • the system of FIG. 1 includes a first communication device (e.g., mobile terminal 10) that is capable of communication via a serving cell 12, such as a base station, a Node B, an evolved Node B (eNB), a radio network controller (RNC) or other access point, with a network 14 (e.g., a core network).
  • a serving cell 12 such as a base station, a Node B, an evolved Node B (eNB), a radio network controller (RNC) or other access point
  • RNC radio network controller
  • LTE Long Term Evolution
  • LTE-A LTE -Advanced
  • other networks may support the method, apparatus and computer program product of embodiments of the present invention including those configured in accordance with wideband code division multiple access (W-CDMA), CDMA2000, global system for mobile communications (GSM), general packet radio service (GPRS) and/or the like.
  • W-CDMA wideband code division multiple access
  • CDMA2000 CDMA2000
  • GSM global system for mobile communications
  • GPRS general packet radio service
  • the network 14 may include a collection of various different nodes, devices or functions that may be in communication with each other via corresponding wired and/or wireless interfaces.
  • the network may include one or more cells, including serving cell 12 and one or more neighbor cells 16 (designated neighbor cell 1 , neighbor cell 2, ... neighbor cell n in the embodiment of FIG. 1), each of which may serve a respective coverage area.
  • the serving cell and the neighbor cells could be, for example, part of one or more cellular or mobile networks or public land mobile networks (PLMNs).
  • PLMNs public land mobile networks
  • processing devices e.g., personal computers, server computers or the like
  • a communication device such as the mobile terminal 10 (also referred to herein as UE 10), may be in communication with other communication devices or other devices via the serving cell 12 and, in turn, the network 14.
  • the communication device may include an antenna for transmitting signals to and for receiving signals from a serving cell.
  • the mobile terminal 10 may be a mobile
  • the mobile terminal 10 may include one or more processors that may define processing circuitry either alone or in combination with one or more memories.
  • the processing circuitry may utilize instructions stored in the memory to cause the mobile terminal 10 to operate in a particular way or execute specific functionality when the instructions are executed by the one or more processors.
  • the mobile terminal 10 may also include communication circuitry and corresponding hardware/software to enable communication with other devices and/or the network 14.
  • a neighbor cell 16 also referred to herein as target cell 16 and/or the serving cell 12 (also referred to herein as eNB 12) may be embodied as or otherwise include an apparatus 20 as generically represented by the block diagram of FIG. 2.
  • the mobile terminal 10 may be embodied as or otherwise include an apparatus 30 as generically represented by the block diagram of FIG. 3. While the apparatus 20 may be employed, for example, by a serving cell 12, or a neighbor cell 16 and the apparatus 30 may be employed, for example, by a mobile terminal 10, it should be noted that the components, devices or elements described below may not be mandatory and thus some may be omitted in certain embodiments. Additionally, some embodiments may include further or different components, devices or elements beyond those shown and described herein.
  • the eNB 12 may be embodied as or otherwise include an apparatus 20 as generically represented by the block diagram of FIG. 2.
  • the apparatus may be configured to communicate with one or more mobile terminals 10. While one embodiment of the apparatus is illustrated and described below, it should be noted that the components, devices or elements described below may not be mandatory and thus some may be omitted in certain embodiments. Additionally, some embodiments may include further or different components, devices or elements beyond those shown and described herein.
  • the apparatus 20 may include or otherwise be in communication with processing circuitry 22 that is configurable to perform actions in accordance with example embodiments described herein.
  • the processing circuitry may be configured to perform data processing, application execution and/or other processing and management services according to an example embodiment of the invention.
  • the apparatus or the processing circuitry may be embodied as a chip or chip set.
  • the apparatus or the processing circuitry may comprise one or more physical packages (e.g., chips) including materials, components and/or wires on a structural assembly (e.g., a baseboard).
  • the structural assembly may provide physical strength, conservation of size, and/or limitation of electrical interaction for component circuitry included thereon.
  • the apparatus or the processing circuitry may therefore, in some cases, be configured to implement an embodiment of the present invention on a single chip or as a single "system on a chip.”
  • a chip or chipset may constitute means for performing one or more operations for providing the functionalities described herein.
  • the processing circuitry 22 may include a processor 24 and memory 26 that may be in communication with or otherwise control a device interface 28.
  • the processing circuitry may be embodied as a circuit chip (e.g., an integrated circuit chip) configured (e.g., with hardware, software or a combination of hardware and software) to perform operations described herein in relation to the apparatus 20.
  • the device interface 28 may include one or more interface mechanisms for enabling communication with other devices, such as one or more mobile terminals 10.
  • the device interface may be any means such as a device or circuitry embodied in either hardware, or a combination of hardware and software that is configured to receive and/or transmit data from to a network and/or any other device or module in communication with the processing circuitry 22.
  • the device interface may include, for example, an antenna (or multiple antennas) and supporting hardware and/or software for enabling communications with a wireless communication network and/or a communication modem, such as a cellular modem 21 (e.g., an LTE modem), and/or an optional non-cellular modem 23 (e.g., a WiFi modem, WLAN modem, etc.) for enabling communications with other terminals (e.g., WiFi terminals, WLAN terminals, APs, etc).
  • a cellular modem 21 e.g., an LTE modem
  • an optional non-cellular modem 23 e.g., a WiFi modem, WLAN modem, etc.
  • the memory 26 may include one or more non-transitory memory devices such as, for example, volatile and/or non- volatile memory that may be either fixed or removable.
  • the memory may be configured to store information, data, applications, instructions or the like for enabling the apparatus 20 to carry out various functions in accordance with example embodiments of the present invention.
  • the memory could be configured to buffer input data for processing by the processor 24.
  • the memory could be configured to store instructions for execution by the processor.
  • the memory may include one of a plurality of databases that may store a variety of files, contents or data sets.
  • applications may be stored for execution by the processor in order to carry out the functionality associated with each respective application.
  • the memory may be in communication with the processor via a bus for passing information among components of the apparatus.
  • the processor 24 may be embodied in a number of different ways.
  • the processor may be embodied as various processing means such as one or more of a
  • the processor may be configured to execute instructions stored in the memory 26 or otherwise accessible to the processor.
  • the processor may represent an entity (e.g., physically embodied in circuitry - in the form of processing circuitry 22) capable of performing operations according to embodiments of the present invention while configured accordingly.
  • the processor may be specifically configured hardware for conducting the operations described herein.
  • the instructions may specifically configure the processor to perform the operations described herein.
  • the mobile terminals 10 may be embodied as or otherwise include an apparatus 30 as generically represented by the block diagram of FIG. 3.
  • the apparatus may be configured to provide for communications with the eNB 12 or another terminal(s) via communications system (e.g., an LTE system).
  • communications system e.g., an LTE system
  • the apparatus may be employed, for example, by a mobile terminal, it should be noted that the components, devices or elements described below may not be mandatory and thus some may be omitted in certain embodiments. Additionally, some embodiments may include further or different components, devices or elements beyond those shown and described herein.
  • the apparatus 30 may include or otherwise be in communication with processing circuitry 32 that is configurable to perform actions in accordance with example embodiments described herein.
  • the processing circuitry may be configured to perform data processing, application execution and/or other processing and management services according to an example embodiment of the present invention.
  • the apparatus or the processing circuitry may be embodied as a chip or chip set.
  • the apparatus or the processing circuitry may comprise one or more physical packages (e.g., chips) including materials, components and/or wires on a structural assembly (e.g., a baseboard).
  • the structural assembly may provide physical strength, conservation of size, and/or limitation of electrical interaction for component circuitry included thereon.
  • the apparatus or the processing circuitry may therefore, in some cases, be configured to implement an embodiment of the present invention on a single chip or as a single "system on a chip.”
  • a chip or chipset may constitute means for performing one or more operations for providing the
  • the processing circuitry 32 may include a processor 34 and memory 36 that may be in communication with or otherwise control a device interface 38 and, in some cases, a user interface 44.
  • the processing circuitry may be embodied as a circuit chip (e.g., an integrated circuit chip) configured (e.g., with hardware, software or a combination of hardware and software) to perform operations described herein.
  • the processing circuitry may be embodied as a portion of a mobile computing device or other mobile terminal.
  • the optional user interface 44 may be in communication with the processing circuitry 32 to receive an indication of a user input at the user interface and/or to provide an audible, visual, mechanical or other output to the user.
  • the user interface in the context of a mobile terminal may include, for example, a keyboard, a mouse, a joystick, a display, a touch screen, a microphone, a speaker, and/or other input/output mechanisms.
  • the device interface 38 may include one or more interface mechanisms for enabling communication with other devices and/or networks.
  • the device interface may be any means such as a device or circuitry embodied in either hardware, or a combination of hardware and software that is configured to receive and/or transmit data from/to a network and/or any other device or module in communication with the processing circuitry 32.
  • the device interface may include, for example, an antenna (or multiple antennas) and supporting hardware and/or software for enabling communications with a wireless
  • the device interface includes a cellular modem 40 (e.g., an LTE modem) for supporting communications with the eNB 12 and an optional non-cellular modem 42 (e.g., a WiFi modem, WLAN modem, Bluetooth (BT) modem, etc.) for supporting communications with other terminals (e.g., a WiFi station(s), a WLAN station(s)), etc.).
  • a cellular modem 40 e.g., an LTE modem
  • an optional non-cellular modem 42 e.g., a WiFi modem, WLAN modem, Bluetooth (BT) modem, etc.
  • BT Bluetooth
  • the memory 36 may include one or more non-transitory memory devices such as, for example, volatile and/or non-volatile memory that may be either fixed or removable.
  • the memory may be configured to store information, data, applications, instructions or the like for enabling the apparatus 30 to carry out various functions in accordance with example embodiments of the present invention.
  • the memory could be configured to buffer input data for processing by the processor 34.
  • the memory could be configured to store instructions for execution by the processor.
  • the memory may include one of a plurality of databases that may store a variety of files, contents or data sets. Among the contents of the memory, applications may be stored for execution by the processor in order to carry out the functionality associated with each respective application.
  • the memory may be in communication with the processor via a bus for passing information among components of the apparatus.
  • the processor 34 may be embodied in a number of different ways.
  • the processor may be embodied as various processing means such as one or more of a
  • the processor may be configured to execute instructions stored in the memory 36 or otherwise accessible to the processor.
  • the processor may represent an entity (e.g., physically embodied in circuitry - in the form of processing circuitry 32) capable of performing operations according to embodiments of the present invention while configured accordingly.
  • the processor when the processor is embodied as an ASIC, FPGA or the like, the processor may be specifically configured hardware for conducting the operations described herein.
  • the processor when the processor is embodied as an executor of software instructions, the instructions may specifically configure the processor to perform the operations described herein.
  • an example embodiment may redefine a field(s) (e.g., a 2-bit field) of a Transmit Power Control (TPC) command for PUCCH in a downlink grant DCI format 1A in the common search space to enable one or more states to trigger the generation of a CSI report.
  • a DCI Format 1A may be used for compact signaling of resource assignments for single codeword physical downlink shared channel (PDSCH) transmissions, and for allocating a dedicated preamble signature to a UE for contention-free random access.
  • PDSCH physical downlink shared channel
  • the eNB 12 may redefine the 2-bit field TPC command for PUCCH in a downlink grant DCI format 1 A in the common search space to enable one or more TPC states to trigger the CSI report.
  • the TPC states may correspond to four TPC states (e.g., TPC states #0, #1 , #2, #3 of table 1 of FIG. 4). In another alternative example embodiment, the TPC states may correspond to any other suitable number of TPC states.
  • the UE 10 may detect the TPC state #3 in DCI format 1A in a subframe #n, provided by eNB 12 in a downlink grant, which may trigger the UE 10 to generate a CSI report for sending to the eNB 12.
  • detection by the processor of the UE 10 of one or more fields 3 may trigger the UE 10 to generate the CSI report.
  • the processor 34 of the UE 10 may analyze the information of the new definition field 5 of the TPC state #3 and may determine that the eNB 12 instructs the UE 10 not to perform PUCCH power control (e.g., 0 dB), based on the TPC state #3, but instead to trigger aperiodic CSI reporting.
  • PUCCH power control e.g., 0 dB
  • the UE 10 may send the CSI report in the subframe #n+k, where k is a predefined positive integer.
  • the UE 10 may send the generated CSI report in a subsequent subframe (e.g., the next subframe) to the eNB 12 in the subframe #n+k to enable the processor 34 sufficient time to prepare the CSI report.
  • the UE 10 may send the generated CSI report in the subsequent subframe #n+k via an uplink communication with the eNB 12.
  • the eNB 12 may redefine TPC state #3, in the example embodiment of FIG.
  • the processor 24 of the eNB 12 may utilize any other (e.g., TPC states #0, #1 , #2) of the four TPC states to trigger the UE 10 to generate the CSI report.
  • the eNB 12 may assign all TPC states (e.g., four states) to be utilized by the UE for triggering the generation of a CSI report.
  • the eNB 12 may assign TPC state #2 for triggering by the UE of a CSI report for a downlink component carrier 1 (e.g., a channel) and may assign TPC state #3 for triggering by the UE of a CSI report for a downlink component carrier 2. Additionally, in this example, the eNB 12 may assign TPC state #1 for triggering by the UE of a CSI report for a downlink component carrier 3 and may assign TPC state #4 for triggering by the UE of a CSI report for a downlink component carrier 4.
  • TPC state #2 for triggering by the UE of a CSI report for a downlink component carrier 1 (e.g., a channel)
  • TPC state #3 for triggering by the UE of a CSI report for a downlink component carrier 2.
  • the eNB 12 may assign TPC state #1 for triggering by the UE of a CSI report for a downlink component carrier 3 and may assign TPC state #4 for triggering by the UE of a CSI report
  • one or more predefined or higher layers may be configured by the processor 24 of the eNB 12 for a given state to be utilized to trigger a CSI report(s), via a particular component carrier (e.g., a channel) or one or more component carriers (e.g., a set of component carriers).
  • a particular component carrier e.g., a channel
  • component carriers e.g., a set of component carriers
  • the processor 24 of the eNB 12 may utilize predefined/higher layers (e.g., Radio Resource Control (RRC) signaling/messages) to instruct the eNB 12 to utilize a particular component carrier (e.g., downlink component carrier 1) for providing a downlink grant to a UE for triggering the UE to generate a CSI report in a particular state (e.g., TPC state #3) and may determine to utilize another component carrier (e.g., downlink component carrier 2) for a different state (e.g., TPC state #2) for triggering of a CSI report by a UE (e.g., UE 10).
  • RRC Radio Resource Control
  • the processor of the eNB 12 may provide the downlink grant triggering generation of a CSI report, to a UE (e.g., UE 10) via higher layer signaling (e.g., RRC signaling/messages) to enable the UE to generate the CSI report and provide the generated CSI report to the eNB 12.
  • a UE e.g., UE 10
  • higher layer signaling e.g., RRC signaling/messages
  • the processor 24 of the eNB 12 may utilize higher layer signaling (e.g., RRC signaling/messages) to instruct the eNB 12 to turn on the triggering of CSI reporting or to turn off the triggering of the CSI reporting.
  • higher layer signaling e.g., RRC signaling/messages
  • the processor 34 of the UE 10 may determine resources needed to provide the report to the eNB 12. For instance, the processor of the UE 10 may determine that the resources correspond to PUSCH resources that are defined by several parameters such as, for example, a starting point N s in a physical resource block (PRB) index, the number of PRB.
  • PRB physical resource block
  • N pr b continuously assigned PRBs
  • DMRS demodulation reference signal
  • Ndmr s a cyclic shift for demodulation reference signal
  • OCC orthogonal cover code index
  • the processor of the UE 10 may determine the PUSCH resources downlink control information (DCI) received from the eNB 12.
  • DCI downlink control information
  • the processor of the UE 10 may determine N s implicitly based on the Control Channel Elements (CCE) index of the physical downlink control channel (PDCCH), or the PRB index of the physical downlink shared channel (PDSCH) corresponding to the same PDCCH, and in response to determining that N pr b, Ndmr s , and N occ are predefined or configured via a higher layer(s).
  • CCE Control Channel Elements
  • the processor of the UE 10 may determine that multiple sets of resources are predefined or configured via higher layer(s) for the UE, by the eNB 12 and the UE 10 may determine which set of resources to utilize based in part on analyzing signaling bits in a PDCCH DCI format, for example.
  • the processor 24 of the UE 10 may determine the resources to utilize for sending a generated CSI report to the eNB 12 based in part on determining the N s , N pr b, Ndmr s and N occ that are as identified as being most recently utilized in an uplink grant in which a CSI report was triggered in a PUSCH.
  • the UE 10 may monitor a downlink grant (e.g., a DCI format 1A downlink grant) from the eNB 12 in the common search space for determining whether to trigger generation of a CSI report for providing the CSI report to the eNB 12.
  • a downlink grant e.g., a DCI format 1A downlink grant
  • the processor 34 of the UE 10 may monitor a downlink grant (e.g., DCI format 1A for downlink grant) in the common search space for triggering generation of a CSI report even in instances in which the UE 10 does not have uplink data to transmit to the eNB 12 during a period of time.
  • a downlink grant e.g., DCI format 1A for downlink grant
  • the eNB 12 supports triggering of a CSI report(s) for a UE (e.g., UE 10) via a downlink grant (e.g., DCI format 1A downlink grant (also referered to herein as DCI format 1A message)) in the common search space, and does not need to change the size of a DCI format (e.g., DCI format 1A), thus maintaining backwards compatibility between LTE UEs and legacy UEs.
  • a downlink grant e.g., DCI format 1A downlink grant (also referered to herein as DCI format 1A message)
  • DCI format 1A message also referered to herein as DCI format 1A message
  • the eNB 12 may redefine a TPC DCI format to conform to the TPC field in the DCI format 1A 7 of FIG. 5.
  • the fields of the TPC field in the DCI format 1A may be evaluated by the processor 34 of the UE 10 upon receipt of a downlink grant from the eNB 12 and in an instance in which the processor 34 of the UE 10 detects the data of the fields 9, 1 1 , 15, the processor 34 of the UE 10 may be triggered generate a CSI report for the eNB 12.
  • the processor 34of the UE may generate the CSI report and may send the generated CSI report to the eNB 12 via an uplink communication (e.g., a PUCCH).
  • an uplink communication e.g., a PUCCH
  • the processor of the UE 10 may determine that data of field 15 corresponds to the data of the table (e.g., table 1) of FIG. 4.
  • an apparatus e.g., UE 10 may determine whether a new interpretation of a downlink grant DCI format 1 A is configured via a higher layer(s) (e.g., RRC signaling/RRC message(s)).
  • a higher layer(s) e.g., RRC signaling/RRC message(s)
  • the apparatus may determine whether a new interpretation of a DCI format 1 A is configured via a higher layer based in part on an eNB (e.g., eNB 12) utilizing a new RRC signaling to indicate to the apparatus (e.g., UE 10) whether the new interpretation of DCI format 1A shall apply.
  • the apparatus e.g., UE 10) may check this RRC signaling, and if the signaling indicates that the new interpretation applies then the apparatus (e.g., UE 10) may interpret the DCI format 1A in the proposed manner as triggering generation of CSI. Otherwise, the apparatus (e.g., UE 10) may interpret the DCI format 1A as defined for performing power control.
  • an apparatus e.g., UE 10 may determine that a new implementation of a DCI format 1A is not to be performed (e.g., not applicable) in response to determining that the new interpretation of the downlink grant DCI format 1 A is not configured via a higher layer(s).
  • an apparatus may determine whether a redefined TPC state is indicated by a TPC field (e.g., a PUCCH TPC field) in the downlink grant DCI format 1A in response to determining that the new interpretation of the downlink grant DCI format 1A is configured via the higher layer(s).
  • a TPC field e.g., a PUCCH TPC field
  • an apparatus may adjust power based on the detected TPC state, in response to determining that the redefined TPC state is not included in the downlink grant DCI format 1A.
  • an apparatus may trigger generation of CSI (e.g., a CSI report) via the DCI format 1 A in response to determining that the redefined TPC state is indicated by the TPC field in the downlink grant DCI format 1A.
  • the apparatus e.g., UE 10
  • an apparatus may determine whether a new interpretation of a DCI format 1 A needs to be configured via a higher layer(s).
  • the apparatus e.g., eNB 12
  • the apparatus e.g., eNB 12
  • the apparatus may configure the UE such that the new interpretation applies (e.g., a CSI report may be triggered via the DCI format 1A (e.g., a message) in a common search space).
  • an apparatus may configure a UE such that no new implementation is applicable.
  • the apparatus e.g., eNB 12
  • an apparatus e.g., eNB 12
  • an apparatus e.g., eNB 12
  • an apparatus may determine whether a CSI report should be triggered based in part on a downlink grant to a UE (e.g., UE 12).
  • an apparatus e.g., eNB 12
  • power control e.g., PUCCH power control
  • TPC states #0, #1 and #2 e.g., TPC states #0, #1 and #2
  • an apparatus may set a TPC field state of a redefined TPC command to include data instructing a UE to trigger generation of a CSI report in response to determining that the CSI report should be triggered by the UE.
  • an apparatus e.g., eNB 12
  • a UE may determine that generation of a CSI report is triggered by a received downlink grant (e.g., a downlink message).
  • the UE may determine for which component carrier or set of component carriers that the CSI may be reported for.
  • the processor of the UE 10 may determine for which component carrier or set of component carriers are utilized for a predefined or higher layer(s) being configured for a given state (e.g., a TPC state), in an instance in which the CSI report is triggered.
  • the higher layer signaling may be, for example, UE specific RRC signaling or any other suitable signaling.
  • the eNB 12 may be configured, via a higher layer, the TPC state #3 in the table of FIG. 4 for usage by the processor 34 of the UE 10 to trigger the CSI report for a serving cell in which the PDCCH for CSI triggering is sent by the eNB (e.g., eNB 12), or a set of cells including the cell in which the PDCCH for CSI triggering is sent to the UE 10 from the eNB.
  • an eNB e.g., eNB 12
  • the above described higher layer configurations may be different for each of the TPC states utilized.
  • both an eNB and an UE may know exactly in which sub frame a CSI report may be transmitted via a PUSCH.
  • a parameter k e.g., a predefined positive integer
  • the eNB 12 and the UE 10 which is predefined for such timing alignment.
  • a UE may utilize PUSCH resources for providing a CSI report to an eNB.
  • the UE may determine alternatives for utilizing PUSCH resources.
  • the parameters such as, for example, the number of PRB parameters and the DMRS parameters are allocated on a semi-static basis, the UE may not necessarily perform fast scheduling for a corresponding PUSCH.
  • the processor 34 of the UE 10 may adjust the amount of resources, for example, N pr b parameters, according to the information that is to be reported based on one or more predefined rules.
  • a UE may have different combinations of CSI types (e.g., Channel Quality Indicator (CQI), Rank Indication (RI), and Precoding Matrix Indication (PMI) based on a CSI feedback mode) in different instances of CSI reports.
  • CQI Channel Quality Indicator
  • RI Rank Indication
  • PMI Precoding Matrix Indication
  • An example of a manner in which to achieve this may be to enable the UE to utilize multiple sets of resources that are predefined or configured via a higher layer(s), but allowing the UE to determine which set of resources the UE may use in an implicit manner (e.g., based on the actual payload size of CSI feedback, etc.) or alternatively in an explicit manner (e.g., based on some additional signaling bits that may be introduced to the PDCCH DCI formats).
  • an implicit manner e.g., based on the actual payload size of CSI feedback, etc.
  • an explicit manner e.g., based on some additional signaling bits that may be introduced to the PDCCH DCI formats.
  • the PUCCH power may be adjusted by and eNB (e.g., eNB 12) a few parameters among which there is a function g(i) which is the accumulative PUCCH power adjustment indicated by an eNB (e.g., eNB 12) up to until subframe #i.
  • eNB e.g., eNB 12
  • g(i) the accumulative PUCCH power adjustment indicated by an eNB (e.g., eNB 12) up to until subframe #i.
  • the redefined state e.g., TPC state #3
  • the UE is configured to interpret the DCI format 1A in the common search space the impact on the PUCCH power, is described more fully below.
  • an eNB e.g., eNB 12
  • the processor e.g., processor 34
  • the eNB may adjust the PUCCH power by -1 dB, 0 dB or 1 dB, since it may not be possible for the eNB to adjust the PUCCH power by +3 dB according to an original definition of the TPC field of a corresponding TPC state (e.g., TPC state #3).
  • the eNB may not be able to adjust the power by + 3dB even in an instance in which the eNB is not triggering a CSI report with the DL grant in subframe #i since the eNB may have previously configured a UE to interpret the DCI format 1A for triggering CSI, which may mean the UE may determine that the TPC state #3 in TPC field is not used for power control.
  • the eNB may use a DCI format 3/3A for PUCCH power control.
  • DCI formats 3 and 3A may be used for the transmission of power control commands for PUCCH and PUSCH with 2-bit or 1-bit power adjustments respectively.
  • These DCI formats may include individual power control commands for a group of UEs.
  • the following information may be transmitted by means of the DCI format 3A:
  • the UE may use a higher layer configured parameter TPC-Index to determine the index to the TPC command for the UE. For example, if the index is one then the UE may determine that the first bit in the DCI format 3 A is used for the UE's power control Alternatively, the eNB may assign the PUCCH resources with less fluctuating interference conditions to a UE(s), so that PUCCH power adjustments do not have to be updated very frequently.
  • the eNB may configure a corresponding UE (e.g., UE 12) via higher layer signaling (e.g., RRC signaling/RRC message(s)) such that the proposed redefinition of the TPC field relating to triggering generation of a CSI report may not apply.
  • these UEs may not trigger generation of a CSI report in response to being configured not to utilize the redefined TPC field and instead may adjust the PUCCH power control by + 3 dB according to the original definition of the corresponding TPC state (e.g., TPC state #3).
  • an apparatus may receive a downlink control information message from a base station (e.g., eNB 12).
  • the downlink control information message (e.g., a downlink grant DCI format 1A message) may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states (e.g., TPC states #0, #1 , #2, #3 of table 1 of FIG.
  • TPC state #3 information redefining at least one of the transmit power control commands corresponding to one of the states (e.g., TPC state #3) to include data instructing the apparatus (e.g., UE 10) to trigger generation of channel status information (e.g., a CSI report).
  • an apparatus may trigger generation of the channel status information in response to detecting the data instructing the apparatus (e.g., UE 10) to trigger generation of channel status information.
  • an apparatus e.g., UE 10 may provide the generated channel status information to the base station (e.g., eNB 12) via an uplink communication (e.g., a PUSCH).
  • an apparatus e.g., eNB 12 may generate a downlink control information message (e.g., a downlink grant control information format 1A message).
  • the message may include data indicating one or more transmit power control commands, corresponding to one or more transmit power control states (e.g., TPC states #0, #1 , # 2, #3 of the table of FIG.
  • transmit power control commands e.g., a TPC command for PUCCH
  • states e.g., TPC state #3
  • channel status information e.g., a CSI report
  • an apparatus may provide the generated downlink control information message to the device (e.g., UE 10) to enable the device to trigger generation of the channel status information in response to detecting the data instructing the device to trigger generation of the channel status information.
  • an apparatus e.g., eNB 12
  • FIGS. 6, 7, 8 and 9 are flowcharts of a system, method and computer program product according to an example embodiment of the invention. It will be understood that each block of the flowcharts, and combinations of blocks in the flowcharts, can be implemented by various means, such as hardware, firmware, and/or a computer program product including one or more computer program instructions. For example, one or more of the procedures described above may be embodied by computer program instructions. In this regard, in an example embodiment, the computer program instructions which embody the procedures described above are stored by a memory device (e.g., memory 26, memory 36) and executed by a processor (e.g., processor 24, processor 34).
  • a memory device e.g., memory 26, memory 36
  • a processor e.g., processor 24, processor 34
  • any such computer program instructions may be loaded onto a computer or other programmable apparatus (e.g., hardware) to produce a machine, such that the instructions which execute on the computer or other programmable apparatus cause the functions specified in the flowcharts blocks to be
  • the computer program instructions are stored in a computer- readable memory that can direct a computer or other programmable apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the function specified in the flowcharts blocks.
  • the computer program instructions may also be loaded onto a computer or other programmable apparatus to cause a series of operations to be performed on the computer or other programmable apparatus to produce a computer-implemented process such that the instructions which execute on the computer or other programmable apparatus implement the functions specified in the flowcharts blocks.
  • blocks of the flowcharts support combinations of means for performing the specified functions. It will also be understood that one or more blocks of the flowcharts, and combinations of blocks in the flowcharts, can be implemented by special purpose hardware- based computer systems which perform the specified functions, or combinations of special purpose hardware and computer instructions.
  • an apparatus for performing the methods of FIGS. 6, 7, 8 and 9 above may comprise a processor (e.g., the processor 24, the processor 34) configured to perform some or each of the operations (600 - 620, 700 - 730, 800 - 810, 900 - 910) described above.
  • the processor may, for example, be configured to perform the operations (600 - 620, 700 - 730, 800 - 810, 900 - 910) by performing hardware implemented logical functions, executing stored instructions, or executing algorithms for performing each of the operations.
  • the apparatus may comprise means for performing each of the operations described above.
  • examples of means for performing operations may comprise, for example, the processor 24 (e.g., as means for performing any of the operations described above), the processor 34 and/or a device or circuit for executing instructions or executing an algorithm for processing information as described above.

Landscapes

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

Abstract

L'invention concerne un procédé, un appareil et un produit de programme informatique permettant la mise en œuvre d'une méthode efficace de déclenchement de la production d'informations d'état de canal se fondant en partie sur la fourniture d'un accord de liaison descendante. Un procédé et un appareil peuvent recevoir d'une station de base un message d'informations de commande de liaison descendante. Le message peut contenir des données indiquant un ou plusieurs ordres de commande de puissance d'émission. Les ordres de commande de puissance d'émission peuvent correspondre à un ou plusieurs états de commande de puissance d'émission et à des informations redéfinissant au moins l'un des ordres de commande de puissance d'émission, correspondant à l'un des états, afin d'inclure un contenu ordonnant à un dispositif de déclencher la production d'informations d'état de canal. Le procédé et l'appareil peuvent également déclencher la production des informations d'état de canal en réponse à la détection du contenu ordonnant au dispositif de déclencher la production d'informations d'état de canal et peuvent fournir les informations d'état de canal produites à la station de base par l'intermédiaire d'une communication de liaison montante.
PCT/CN2011/081822 2011-11-04 2011-11-04 Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante WO2013063802A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/081822 WO2013063802A1 (fr) 2011-11-04 2011-11-04 Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/081822 WO2013063802A1 (fr) 2011-11-04 2011-11-04 Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante

Publications (1)

Publication Number Publication Date
WO2013063802A1 true WO2013063802A1 (fr) 2013-05-10

Family

ID=48191232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/081822 WO2013063802A1 (fr) 2011-11-04 2011-11-04 Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante

Country Status (1)

Country Link
WO (1) WO2013063802A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016122846A1 (fr) * 2015-01-27 2016-08-04 Qualcomm Incorporated Déclenchement d'un accusé de réception/accusé de réception négatif ou d'informations d'état de canal de groupe
CN114514784A (zh) * 2019-10-12 2022-05-17 上海诺基亚贝尔股份有限公司 设备、方法和计算机程序
US11395235B2 (en) * 2019-06-03 2022-07-19 Qualcomm Incorporated Power control enhancement for inter-user equipment multiplexing
TWI798434B (zh) * 2018-05-11 2023-04-11 美商高通公司 在靈活排程延遲的情況下的功率控制
EP4280667A4 (fr) * 2021-01-13 2024-06-12 Vivo Mobile Communication Co., Ltd. Procédé d'envoi d'informations de canal, procédé de réception d'informations de canal et dispositif associé
TWI847601B (zh) 2018-05-11 2024-07-01 美商高通公司 在靈活排程延遲的情況下的功率控制

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011002389A1 (fr) * 2009-06-30 2011-01-06 Telefonaktiebolaget L M Ericsson (Publ) Régulation des notifications de csi dans un réseau de communication cellulaire lte
CN102006624A (zh) * 2010-11-29 2011-04-06 中兴通讯股份有限公司 基站及其通知非周期信道状态信息报告的触发模式的方法
WO2011053970A2 (fr) * 2009-11-02 2011-05-05 Qualcomm Incorporated Compte-rendu d'état de canal
CN102215591A (zh) * 2010-04-06 2011-10-12 华为技术有限公司 一种信道状态信息的传输方法及用户设备及基站

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011002389A1 (fr) * 2009-06-30 2011-01-06 Telefonaktiebolaget L M Ericsson (Publ) Régulation des notifications de csi dans un réseau de communication cellulaire lte
WO2011053970A2 (fr) * 2009-11-02 2011-05-05 Qualcomm Incorporated Compte-rendu d'état de canal
CN102215591A (zh) * 2010-04-06 2011-10-12 华为技术有限公司 一种信道状态信息的传输方法及用户设备及基站
CN102006624A (zh) * 2010-11-29 2011-04-06 中兴通讯股份有限公司 基站及其通知非周期信道状态信息报告的触发模式的方法

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016122846A1 (fr) * 2015-01-27 2016-08-04 Qualcomm Incorporated Déclenchement d'un accusé de réception/accusé de réception négatif ou d'informations d'état de canal de groupe
CN107210893A (zh) * 2015-01-27 2017-09-26 高通股份有限公司 触发组确认/否定确认或信道状态信息
US10009920B2 (en) 2015-01-27 2018-06-26 Qualcomm Incorporated Triggering a group acknowledgement/negative acknowledgement or channel state information
JP2019146182A (ja) * 2015-01-27 2019-08-29 クゥアルコム・インコーポレイテッドＱｕａｌｃｏｍｍ Ｉｎｃｏｒｐｏｒａｔｅｄ グループアクノレッジメント／ネガティブアクノレッジメントまたはチャネル状態情報をトリガリングすること
CN107210893B (zh) * 2015-01-27 2020-10-27 高通股份有限公司 触发组确认/否定确认或信道状态信息方法和装置
TWI798434B (zh) * 2018-05-11 2023-04-11 美商高通公司 在靈活排程延遲的情況下的功率控制
TWI847601B (zh) 2018-05-11 2024-07-01 美商高通公司 在靈活排程延遲的情況下的功率控制
US11395235B2 (en) * 2019-06-03 2022-07-19 Qualcomm Incorporated Power control enhancement for inter-user equipment multiplexing
CN114514784A (zh) * 2019-10-12 2022-05-17 上海诺基亚贝尔股份有限公司 设备、方法和计算机程序
EP4280667A4 (fr) * 2021-01-13 2024-06-12 Vivo Mobile Communication Co., Ltd. Procédé d'envoi d'informations de canal, procédé de réception d'informations de canal et dispositif associé

Similar Documents

Publication Publication Date Title
US9674753B2 (en) Channel state information feedback scheme for cooperative multi point transmission and carrier aggregation scenario
US11979213B2 (en) Methods and apparatuses for channel state information configuration and reporting for multi-transmission reception point operation
EP3251247B1 (fr) Procédé et appareil de transmission d'informations de commande de liaison montante
US10135674B2 (en) Wireless communication system with single-subband user equipment
KR102439670B1 (ko) 전송 방향 구성 방법, 장치, 및 시스템
KR20210095692A (ko) 전송 자원 결정 방법 및 장치
JP2016534615A (ja) Ｃｓｉ報告を処理するための方法及び無線ノード
US10057038B2 (en) Method and apparatus for feedback in mobile communication system
KR20140047394A (ko) 이동 통신 시스템에서 하향링크 채널의 채널 상태 정보 송수신 장치 및 방법
JP6139686B2 (ja) ダウンリンク制御情報を送信するための方法、ネットワーク側装置、およびユーザ機器
US10827321B2 (en) Control information transmission method and apparatus
KR102057137B1 (ko) 피드백 정보의 전송 및 제어 방법 및 장치
US9374130B2 (en) Method and apparatus for triggering a ranked transmission
WO2013063802A1 (fr) Procédés et appareils de déclenchement de la production d'informations d'état de canal par un accord de liaison descendante
KR20180077222A (ko) 상향링크 제어 정보(uci)를 전송하기 위한 방법과 장치
EP3001743B1 (fr) Procédé et dispositif de détection et d'envoi d'informations de commande de liaison descendante
CN115150025B (zh) Csi反馈方法、相关设备及可读存储介质
WO2018228554A1 (fr) Procédé et appareil de mesure d'état de canal
US20220247543A1 (en) Method and apparatus for transmitting uplink signal in a communication system
WO2023280043A1 (fr) Procédé de notification de faisceaux et terminal
WO2016116165A1 (fr) Procédé, appareil et système pour la configuration d'un canal de commande sur la liaison montante
US20130242827A1 (en) Methods and apparatuses for facilitating uplink multiple input multiple output signaling
TW201338483A (zh) 處理控制通道的方法及其通訊裝置
EP2635081B1 (fr) Attribution de ressources de communication
WO2014110801A1 (fr) Procédé et appareil pour prendre en charge une reconfiguration liaison montante/liaison descendante à duplexage par répartition temporelle

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 11874966

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 11874966

Country of ref document: EP

Kind code of ref document: A1