WO2013170639A1 - Procédé de transmission d'informations de contrôle de liaison montante et équipement utilisateur - Google Patents

Procédé de transmission d'informations de contrôle de liaison montante et équipement utilisateur Download PDF

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Publication number
WO2013170639A1
WO2013170639A1 PCT/CN2013/070211 CN2013070211W WO2013170639A1 WO 2013170639 A1 WO2013170639 A1 WO 2013170639A1 CN 2013070211 W CN2013070211 W CN 2013070211W WO 2013170639 A1 WO2013170639 A1 WO 2013170639A1
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Prior art keywords
csi
carriers
base stations
carrier
information
Prior art date
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PCT/CN2013/070211
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English (en)
Chinese (zh)
Inventor
李强
Original Assignee
华为技术有限公司
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Publication of WO2013170639A1 publication Critical patent/WO2013170639A1/fr

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Classifications

    • 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
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • 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
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
    • 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
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment

Definitions

  • the present invention relates to communication technologies, and in particular, to a method for transmitting uplink control information and a user equipment (User Equipment, UE). Background technique
  • uplink control information sent by a User Equipment (UE) to an Evolved NodeB (eNB) is determined by
  • the physical uplink control channel (PUCCH) is carried by the physical uplink control channel (PUCCH).
  • the UCI may include feedback information of downlink data (ie, ACK information that the downlink data is correctly received or NACK information that is not correctly received), Scheduling Request (SR) information of the uplink data, and channel status information (CSI).
  • ACK information that the downlink data is correctly received or NACK information that is not correctly received Scheduling Request (SR) information of the uplink data
  • CSI channel status information
  • CSI channel status information
  • CoMP Coordinated Multiple Points
  • CA Carrier Aggregation
  • a UE may have multiple eNBs or carriers serving it at the same time. In this case, the UE needs to pass a UCI to it. All eNBs or carriers of the service transmit CSI for each eNB or carrier, as well as feedback information of downlink data and scheduling request
  • the embodiment of the invention provides a method for transmitting uplink control information and a user equipment, which are used in
  • the problem of insufficient UCI capacity is appropriately alleviated.
  • an uplink control information sending method includes:
  • the UE When the sum of the UCI resources is greater than a preset UCI resource threshold, the UE reduces the UCI resources used by the at least one CSI, or reduces the scheduling request information for sending the uplink data and the feedback information of the downlink data.
  • the UCI resource used by the at least one information such that the sum of UCI resources used is less than or equal to the UCI resource threshold.
  • a user equipment includes:
  • a determining unit configured to determine at least one of scheduling request information of uplink data to be transmitted and feedback information of downlink data, and at least one channel state information CSI;
  • a UCI resource used by the processor when the uplink control information UCI resource used by the at least one CSI is sent, and the at least one of the scheduling request information of the uplink data and the feedback information of the downlink data is sent.
  • the sum is greater than a preset UCI resource threshold, reducing UCI resources used for transmitting the at least one CSI, or reducing at least one of scheduling request information for transmitting the uplink data and feedback information for the downlink data
  • the UCI resources are used such that the sum of UCI resources used is less than or equal to the UCI resource threshold.
  • the embodiment of the present invention determines at least one of scheduling request information of uplink data to be transmitted and feedback information of downlink data, and at least one CSI, which is used when transmitting the at least one CSI.
  • the UE decreases the sending of the UCI resource.
  • a UCI resource used by at least one CSI or a UCI resource used to reduce at least one of scheduling request information for transmitting the uplink data and feedback information for the downlink data, so that a sum of used UCI resources is smaller than Or equal to the UCI resource threshold, when the UE needs to transmit CSI, and at least one of feedback information of downlink data and scheduling request information of uplink data, the limitation caused by insufficient UCI capacity can be appropriately alleviated.
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink control information according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a user equipment according to another embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a user equipment according to another embodiment of the present disclosure.
  • FIG. 4 is a schematic structural diagram of a user equipment according to another embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • GSM Global System for Mobile Communications
  • GPRS General Packet Radio Service
  • CDMA Code Division Multiple Access
  • CDMA2000 CDMA2000
  • WCDMA Wideband Code Division Multiple Access
  • LTE Long Term Evolution
  • WiMAX Global Wave Access Interoperability
  • the base station may be a base station (Base Transceiver Station, BTS) in a GSM system, a GPRS system or a CDMA system, or may be a base station (NodeB) in a CDMA2000 system or a WCDMA system, or may be an evolved base station in an LTE system (Evolved)
  • BTS Base Transceiver Station
  • NodeB base station
  • eNB evolved base station in an LTE system
  • the NodeB, eNB may also be a network element such as an Access Service Network Base Station (ASN BS) of the access service network in the WiMAX network.
  • ASN BS Access Service Network Base Station
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink control information according to an embodiment of the present invention. As shown in FIG. 1 , the method for sending uplink control information in this embodiment may include:
  • the UE determines at least one of scheduling request information of uplink data that needs to be sent and feedback information of downlink data, and at least one CSI. 102.
  • the UCI resource used by the at least one CSI is sent, a sum of UCI resources used by at least one of scheduling request information for sending the uplink data and feedback information of the downlink data is greater than a preset
  • the UE reduces UCI resources used for transmitting the at least one CSI, or reduces UCI used by at least one of scheduling request information for transmitting the uplink data and feedback information of the downlink data. Resources such that the sum of UCI resources used is less than or equal to the UCI resource threshold.
  • the eNBs serve one UE at the same time, one of the eNBs is a primary serving station (Serving eNB), and the other eNBs are Cooperative eNBs.
  • the primary serving site is used to control the behavior of this UE and to send control signaling. Collaboration sites are used to further enhance signal quality.
  • the UE needs to feed back the CSI for these eNBs through the UCI.
  • multiple carriers serve one UE at the same time, and simultaneous service of multiple carriers can improve the transmission data rate of the UE. At this time, the UE needs to feed back the CSI for these carriers through the UCI.
  • one UE needs to send CSI for these eNBs or carriers, and needs to send scheduling request information and/or downlink data feedback information for uplink data of these eNBs or carriers (ie, The ACK information that the downlink data is correctly received or the NACK information that is not correctly received).
  • the UE cannot support multiple UCIs simultaneously on one antenna port. Therefore, the feedback information of the downlink data and the CSI need to be fed back through a UCI.
  • the UE may perform an operation of reducing UCI resources used by the at least one CSI, or performing scheduling information for reducing transmission of the uplink data and feedback information of the downlink data.
  • the at least one CSI that is determined by the UE to be sent is one CSI for one base station or carrier; then, correspondingly, in 102, the UE is The at least one CSI may be discarded to implement reducing UCI resources used by the at least one CSI.
  • the one base station or carrier is a base station or a carrier served by the UE. In this way, the UCI resources used to transmit the at least one CSI can be effectively reduced.
  • the CSI that is determined by the UE to be sent is one CSI for each of the at least two base stations or carriers; then, correspondingly, In 102, the UE may specifically discard, for each base station or carrier of the at least one base station or carrier with a lower priority among the at least two base stations or carriers, according to priorities of at least two base stations or carriers.
  • the at least two base stations or carriers are base stations or carriers that serve the UE in common, so that the UCI resources used for sending the at least one CSI can be effectively reduced.
  • the size of the CSI coding for the at least two eNBs is larger than the size of the UCI after the coding request information of the uplink data and/or the feedback information of the downlink data is encoded
  • the capacity is set, for example, the size of the scheduling request information of the uplink data obtained by the UE in 101 and/or the feedback information of the downlink data is 2 bits (bits).
  • the CSI of the lowest-level base station can already accommodate the scheduling request information of the uplink data and/or the feedback information of the downlink data, and the UE discards the CSL for the lowest priority base station.
  • the size of the scheduling request information of the uplink data obtained by the UE in the 101 and/or the feedback information of the downlink data is 6 bits, and if the priority is the lowest and the second lowest,
  • the CSI of the base station can accommodate the scheduling request information of the uplink data and/or the feedback information of the downlink data, and the UE discards the CSI for the lowest priority and the second lowest base station.
  • the UE may send a UCI for at least two base stations or carriers, where the UCI includes at least one of the at least one base station or carrier with the highest priority among the at least two base stations or carriers.
  • the UE may further receive high layer signaling, where the high layer signaling includes priorities of the at least two base stations or carriers.
  • the UE may further receive the high layer signaling sent by the primary serving station (Serving eNB), where the high layer signaling includes the priorities of the at least two base stations or carriers.
  • the information element (Information Element, IE) in the Radio Resource Control (RRC) message may carry the priority of the primary serving station (Serving eNB) and other cooperative stations (Cooperative eNB), the RRC message. It can be an RRC message in the prior art, for example: RRC connection reconfiguration (RRC)
  • the CONNECTION RECONFIGURATION message, etc. is not limited in this embodiment.
  • the IE of the existing RRC message is extended to carry the priority of the serving eNB and the other cooperative station (Cooperative eNB), or the RRC.
  • the message may also be different from the RRC messages already available in the prior art.
  • the new Media Access Control (MAC) Control Element (CE) message carries the main service station (Serving eNB) and other cooperative sites (Cooperative eNB) through the booster port. priority.
  • MAC Media Access Control
  • CE Control Element
  • the UE may further obtain a priority of the at least two base stations according to a pre-configuration, for example: a protocol convention.
  • a protocol convention for example: the UE may obtain the primary service site according to the protocol agreement.
  • the UE may use 16-level quadrature amplitude modulation (Quarature Amplitude Modulation,
  • QAM Quadrature Phase Shift Keying
  • the UE may specifically perform, by the UE, one CSI for each of the at least two base stations or carriers.
  • Encoding, and encoding at least one of scheduling request information for uplink data of the at least two base stations or carriers and feedback information of downlink data where The coding efficiency of the UE for encoding one CSI for each of the at least two base stations or carriers is smaller than the scheduling request information of the UE for uplink data for the at least two base stations or carriers, and At least one of the feedback information of the downlink data performs encoding efficiency of encoding, and thus, UCI resources used for transmitting the at least one CSI can be further reduced.
  • the UE pairs one CSI for each of the at least two base stations or carriers, and the at least two base stations or At least one of the scheduling request information of the uplink data of the carrier and the feedback information of the downlink data may specifically use an independent coding rate. Specifically, it can be implemented by using a separate encoder.
  • one CSI for each of the at least two base stations or carriers, and scheduling request information and downlink data for uplink data for the at least two base stations or carriers obtains independent transmission performance, for example: at least one of scheduling request information for uplink data of the at least two base stations or carriers and feedback information of downlink data may be low
  • the code rate is encoded to obtain higher transmission reliability
  • one CSI for each of the at least two base stations or carriers can be encoded with a higher code rate because of the importance of CSI
  • the performance is lower than the feedback information of the downlink data, so the code rate with less reliability can be used to reduce the overhead.
  • the UE pairs one CSI for each of the at least two base stations or carriers, and the at least two base stations or At least one of the scheduling request information of the uplink data of the carrier and the feedback information of the downlink data may be specifically encoded by using a mixed coding rate, and the complexity of the terminal is low when the mixed coding rate is used.
  • the encoder (encoder 1) of the first coding rate may encode the feedback information of the downlink data, and use The second code rate encoder (encoder 2) encodes the CSI; or the same encoder can be used to encode the downlink data feedback information and the CSI mixed information.
  • the encoder (encoder 1) of the first encoding rate may be used.
  • the scheduling request information of the row data is encoded, and the CSI is encoded by the encoder (encoder 2) of the second encoding rate; or the scheduling request information of the same encoder for the uplink data and the CSI may be mixed.
  • Information is encoded.
  • the encoder (encoder 1) of the first coding rate may encode the feedback information of the downlink data, and use The second code rate encoder (encoder 2) encodes the uplink data scheduling request information, and encodes the CSI with the third code rate encoder (encoder 3); or may use the fourth
  • the coded rate encoder (encoder 4) encodes the information after the feedback of the downlink data and the scheduling request information of the uplink data, and uses the encoder of the fifth code rate (encoder 5) to the CSI.
  • the encoding may be performed; or the same encoder may be used to encode the feedback information of the downlink data, the scheduling request information of the uplink data, and the information after the CSI mixing.
  • the UE may specifically send, according to a carrier mode of transmitting downlink data and a carrier mode of the at least one carrier, to send the at least one
  • the feedback information of the downlink data is transmitted in the subframe of the CSI of the carrier, so that the UCI resource used for transmitting the feedback information of the downlink data can be effectively reduced.
  • the eNB may limit the carrier or the transmission mode of the feedback information that the UE needs to send the downlink data, so that the UE needs to send The amount of feedback information for the downlink data is lower, so that more UCI resources can provide CSI feedback.
  • the number of feedback information of the downlink data that the UE needs to send is related to the number of carriers configured by the UE, and it can be assumed that one UE is configured with three carriers, and the first and second carriers are configured.
  • the eNB specifies that, in a subframe with CSI transmission, the base station only transmits data to the UE on the first carrier, and the second and third carriers are not used, then the UE only needs to perform downlink data for the first carrier. Feedback, then only need to send 2bit; For example, the eNB specifies that, in a subframe with CSI transmission, the base station sends at most one data block per carrier, then the UE only needs to feed 1 bit for each carrier, and a total of 3 bits can be used, which can save more. Space gives feedback to CSI.
  • the UE may specifically use a modulation mode of 16QAM, 64QAM, or 256QAM (or even a higher-order modulation mode) for the uplink data.
  • Scheduling request information for modulation correspondingly, the UE may modulate one CSI for each of the at least two base stations or carriers by using a modulation scheme of QPSK, thereby effectively reducing the transmission station
  • the UCI resource used for the scheduling request information of the uplink data may be used for the scheduling request information of the uplink data.
  • the UE determines at least one of scheduling request information of uplink data to be transmitted and feedback information of downlink data, and at least one CSI, when sending UCI resources used by the at least one CSI, and sending
  • the UE reduces the use of the at least one CSI.
  • the resource threshold can appropriately alleviate the limitation caused by insufficient UCI capacity when the UE needs to transmit CSI, and at least one of feedback information of downlink data and scheduling request information of uplink data.
  • FIG. 2 is a schematic structural diagram of a user equipment according to another embodiment of the present invention. As shown in FIG. 2, the determining unit 21 and the processor 22 of this embodiment. The determining unit 21 is configured to determine at least one of scheduling request information of uplink data to be transmitted and feedback information of downlink data.
  • the processor 22 is configured to: when the UCI resource used by the at least one CSI is sent, and at least one of the scheduling request information for sending the uplink data and the feedback information of the downlink data When the sum of UCI resources used is greater than a preset UCI resource threshold, reducing UCI resources used for transmitting the at least one CSI, or reducing at least one of scheduling request information for transmitting the uplink data and feedback information for the downlink data A UCI resource used by information.
  • the CSI that is determined by the determining unit 21 to be sent is one CSI for one base station or carrier; then, correspondingly, the processor 22 may specifically discard the at least A CSI for implementing reducing UCI resources used by the at least one CSI.
  • the one base station or the carrier is a base station or a carrier that is served by the UE, so that the UCI resources used for sending the at least one CSI can be effectively reduced.
  • the CSI that is determined by the determining unit 21 to be sent is one CSI for each of the at least two base stations or carriers; then, correspondingly, The processor 22 may specifically discard one CSI for each of the at least one base station or carrier of the at least two base stations or carriers with a lower priority according to the priorities of the at least two base stations or carriers.
  • the at least two base stations or carriers are base stations or carriers that are jointly served by the UE, so that the UCI resources used for sending the at least one CSI can be effectively reduced.
  • the user equipment provided in this embodiment may further include a transmitter 31, configured to send UCI for at least two base stations or carriers, where the UCI includes the at least two base stations or At least one of a CSI of each of the at least one base station or carrier having the highest priority among the carriers, scheduling request information for uplink data of the at least two base stations or carriers, and feedback information of downlink data And the UCI resource occupied by the at least one CSI of the at least one base station or the carrier with the highest priority among the at least two base stations or carriers, and the scheduling request information of the uplink data and the feedback of the downlink data.
  • the sum of UCI resources occupied by at least one of the information is less than or equal to the UCI resource threshold.
  • the user equipment provided in this implementation may further include a receiver 41, configured to receive high layer signaling, where the high layer signaling includes The priority of the at least two base stations or carriers.
  • the receiver 41 may further receive the high layer signaling sent by the primary serving station (Serving eNB), where the high layer signaling includes the priorities of the at least two base stations or carriers.
  • the information element (Information Element, IE) in the Radio Resource Control (RRC) message may carry the priority of the primary serving station (Serving eNB) and other cooperative stations (Cooperative eNB), the RRC message. It can be an RRC message in the prior art, for example: RRC connection reconfiguration (RRC)
  • the CONNECTION RECONFIGURATION message, etc. is not limited in this embodiment.
  • the IE of the existing RRC message is extended to carry the priority of the serving eNB and the other cooperative station (Cooperative eNB), or the RRC.
  • the message may also be different from the RRC messages already available in the prior art.
  • the new Media Access Control (MAC) Control Element (CE) message carries the main service station (Serving eNB) and other cooperative sites (Cooperative eNB) through the booster port. priority.
  • MAC Media Access Control
  • CE Control Element
  • the processor 22 may further obtain a priority of the at least two base stations according to a pre-configuration, for example: a protocol convention. Taking the CoMP technology in the LTE system as an example, the processor 22 can obtain the priority of the primary serving station (Serving eNB) and other cooperative stations (Cooperative eNBs) according to the protocol.
  • a protocol convention for example: a protocol convention.
  • the processor 22 can obtain the priority of the primary serving station (Serving eNB) and other cooperative stations (Cooperative eNBs) according to the protocol.
  • the processor 22 may specifically use a modulation mode of 16QAM, 64QAM, or 256QAM for each of the at least two base stations or carriers.
  • a CSI performs modulation; correspondingly, the processor 22 may modulate at least one of scheduling request information for uplink data of the at least two base stations or carriers and feedback information of downlink data by using a modulation scheme of QPSK. In this way, the UCI resources used for transmitting the at least one CSI can be further reduced.
  • the processor 22 may specifically encode one CSI for each of the at least two base stations or carriers, and Encoding at least one of scheduling request information of uplink data of at least two base stations or carriers and feedback information of downlink data, where the UE pair is for each of the at least two base stations or carriers or
  • the coding efficiency of coding one CSI of the carrier is smaller than the scheduling of the uplink data of the UE for the at least two base stations or carriers.
  • the encoding efficiency of encoding at least one of the information and the feedback information of the downlink data is obtained, and thus, the UCI resource used for transmitting the at least one CSI can be further reduced.
  • the processor 22 may further further perform, for the at least two, one CSI for each of the at least two base stations or carriers
  • At least one of the scheduling request information of the uplink data of the base station or the carrier and the feedback information of the downlink data may specifically use an independent coding rate. Specifically, it can be implemented by using a separate encoder.
  • one CSI for each of the at least two base stations or carriers, and scheduling request information and downlink data for uplink data for the at least two base stations or carriers obtains independent transmission performance, for example: at least one of scheduling request information for uplink data of the at least two base stations or carriers and feedback information of downlink data may be low
  • the code rate is encoded to obtain higher transmission reliability
  • one CSI for each of the at least two base stations or carriers can be encoded with a higher code rate because of the importance of CSI
  • the performance is lower than the feedback information of the downlink data, so the code rate with less reliability can be used to reduce the overhead.
  • the processor 22 may further further perform, for the at least two, one CSI for each of the at least two base stations or carriers
  • At least one of the scheduling request information of the uplink data of the base station or the carrier and the feedback information of the downlink data may be specifically encoded by using a mixed coding rate, and the complexity of the terminal is low when the mixed coding rate is used.
  • the processor 22 may specifically send the CSI for the at least one carrier according to a carrier that transmits downlink data in at least one carrier and a transmission mode of the carrier.
  • the feedback information of the downlink data is transmitted, so that the UCI resource used for transmitting the feedback information of the downlink data can be effectively reduced.
  • the processor 22 may specifically modulate the scheduling request information of the uplink data by using a modulation manner of 16QAM, 64QAM, or 256QAM; correspondingly, the processor 22 One CSI for each of the at least two base stations or carriers may be modulated using a modulation scheme of QPSK.
  • the user equipment determines, by using the determining unit, at least one of scheduling request information of uplink data that needs to be sent and feedback information of downlink data, and at least one CSI. And causing the processor to transmit the UCI resource used by the at least one CSI, and the sum of the UCI resources used by the at least one of the scheduling request information for sending the uplink data and the feedback information of the downlink data is greater than a preset
  • the UE reduces the UCI resource used by the at least one CSI, or reduces at least one of the scheduling request information for transmitting the uplink data and the feedback information of the downlink data.
  • the UCI resource such that the sum of the used UCI resources is less than or equal to the UCI resource threshold, can be appropriately mitigated when the UE needs to send CSI, and at least one of feedback information of downlink data and scheduling request information of uplink data. Limitations caused by insufficient UCI capacity.
  • the disclosed systems, devices, and methods may be implemented in other ways.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a hardware plus software functional unit.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit described above is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform portions of the steps of the methods described in various embodiments of the present invention.
  • the aforementioned storage medium Including: U disk, mobile hard disk, Read-Only Memory (ROM), Random Access Memory (RAM), disk or optical disk, and other media that can store program code.

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Abstract

L'invention concerne, dans des modes de réalisation, un procédé de transmission d'informations de contrôle de liaison montante (UCI), et un équipement utilisateur (UE). Un UE détermine au moins une information parmi des informations de demande d'ordonnancement de données de liaison montante et des informations en retour de données de liaison descendante devant être transmises, et au moins une information d'état de canal (CSI) (101). Lorsque la somme des ressources UCI utilisées pour transmettre au moins une CSI et des ressources UCI utilisées pour transmettre au moins une information parmi les informations de demande d'ordonnancement de données de liaison montante et les informations en retour de données de liaison descendante est supérieure à une valeur de seuil prédéterminée des ressources UCI, l'UE diminue les ressources UCI utilisées pour transmettre au moins la CSI, ou diminue les ressources UCI utilisées pour transmettre au moins une information parmi les informations de demande d'ordonnancement de données de liaison montante et les informations en retour de données de liaison descendante, de sorte que la somme des ressources UCI utilisées soit inférieure ou égale à la valeur de seuil des ressources UCI (102), de manière à atténuer la restriction imposée par une capacité UCI insuffisante lorsque l'UE a besoin de transmettre des CSI et au moins une information parmi les informations en retour de données de liaison descendante et les informations de demande d'ordonnancement de données de liaison montante.
PCT/CN2013/070211 2012-05-17 2013-01-08 Procédé de transmission d'informations de contrôle de liaison montante et équipement utilisateur WO2013170639A1 (fr)

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Application Number Priority Date Filing Date Title
CN2012101538421A CN103427961A (zh) 2012-05-17 2012-05-17 上行控制信息发送方法及用户设备
CN201210153842.1 2012-05-17

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WO2013170639A1 true WO2013170639A1 (fr) 2013-11-21

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