WO2011054176A1 - Procédé, dispositif et système de configuration de ressources de canal de commande de liaison montante - Google Patents

Procédé, dispositif et système de configuration de ressources de canal de commande de liaison montante Download PDF

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Publication number
WO2011054176A1
WO2011054176A1 PCT/CN2010/001729 CN2010001729W WO2011054176A1 WO 2011054176 A1 WO2011054176 A1 WO 2011054176A1 CN 2010001729 W CN2010001729 W CN 2010001729W WO 2011054176 A1 WO2011054176 A1 WO 2011054176A1
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Prior art keywords
control channel
channel resource
uplink control
pdcch
resource
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PCT/CN2010/001729
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English (en)
Chinese (zh)
Inventor
林亚男
刘婷婷
潘学明
沈祖康
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电信科学技术研究院
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Publication of WO2011054176A1 publication Critical patent/WO2011054176A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements

Definitions

  • the present invention relates to a wireless communication technology, and in particular, to a method, a device, and a system for configuring an uplink control channel resource.
  • the long-term evolution system uses HARQ (Hybrid Automatic Repeat Request) to improve the reliability of data transmission.
  • HARQ Hybrid Automatic Repeat Request
  • the user terminal decodes the received downlink data packet.
  • the ACK is fed back to the base station. If the decoding fails, the NACK is fed back to the base station, and the base station is required to retransmit the data packet.
  • the base station sends an SPS (Semi-persistent Scheduling) resource release indication to the user terminal. Notifying the user terminal to release all the resources allocated to the service, and the user terminal will correctly feed back the ACK after receiving the indication.
  • SPS Semi-persistent Scheduling
  • the specific implementation includes: A, directly allocate the spectrum of 100M bandwidth (as shown in Figure 1); B, will be assigned to the present Some systems have been aggregated and used to provide large bandwidth for long-term evolution multi-carrier system.
  • the basic transmission scheme of the LTE system (Rel-8), which has been basically completed by the standardization work, is as follows:
  • the frequency division duplex FDD system and the time division duplex TDD are shown in Figures 3 and 4, respectively.
  • For each working carrier downlink signaling, downlink data, uplink signaling, and uplink data, and transmission relationships between each other are defined.
  • the two ends of the frequency band occupied by the uplink control signaling are transmitted by using a frequency hopping method, that is, within one subframe. In the two time slots, the uplink control signaling will occupy different frequency bands. Because the number of control channels that need to be carried in the uplink subframe cannot be dynamically learned, the system reserves certain resources in the uplink subframe for uplink. Control channel transmission.
  • the user terminal that performs feedback will calculate the resource (ie channel) number (" ⁇ ) used for AC/NACK feedback according to its number (" ⁇ ), ie each PDCCH Both correspond to an available uplink control channel resource.
  • An embodiment of the present invention provides a method, a device, and a system for configuring an uplink control channel resource, which are used to solve the problem that in a long-term evolution multi-carrier system, when a carrier wave is used, if each uplink wave is a downlink carrier Reserve corresponding feedback resources, which will lead to serious waste of resources in the uplink.
  • a method for configuring an uplink control channel resource includes:
  • the base station Determining, by the base station, the uplink control channel resource corresponding to the physical downlink control channel PDCCH, on the uplink carrier that performs the AC/NACK feedback on the user terminal;
  • the base station sends an identifier of the available resource to the user terminal in the PDCCH; the identifier of the available resource is used to indicate that the user terminal uses the corresponding resource to perform AC / NACK feedback.
  • a method for configuring an uplink control channel resource includes:
  • the base station allocates an uplink control channel resource set, where the resource set includes a channel resource number corresponding to the channel resource available for the ACK/NACK feedback by the user terminal, and sends the uplink control channel resource set information to the user terminal by using signaling;
  • the base station determines whether the user terminal is present on the uplink carrier that performs ACK/NACK feedback.
  • An uplink control channel resource corresponding to the physical downlink control channel PDCCH on the downlink carrier is to be fed back, and an identifier is set in the PDCCH according to the determination result, where the identifier is used to indicate whether the user terminal uses the channel resource in the uplink control channel resource set.
  • a method for configuring an uplink control channel resource includes:
  • the user terminal reads configuration signaling sent by the base station, and acquires uplink control channel resource set information that is available for the ACK/NACK feedback provided by the user terminal set in the base station;
  • the user terminal detects the PDCCH of the downlink carrier to be fed back, determines whether to use the channel resource in the uplink control channel resource set to perform ACK/NACK feedback, and uses the uplink control channel according to the identifier set in the PDCCH. The corresponding channel resource used when the channel resource in the resource set performs ACK/NACK feedback.
  • a base station device includes:
  • an allocating module configured to allocate an uplink control channel resource set to the user terminal in advance, and send the uplink control channel resource set information to the user terminal by using a signaling, where the uplink control channel resource set includes at least one or one group of ACK/ NACK: the channel resource number available for feedback;
  • a determining module configured to determine, on the uplink carrier that performs the ACK/NACK feedback, the source, and set an identifier in the PDCCH, where the identifier is used to indicate whether the user terminal uses the channel resource in the uplink control channel resource set Performing ACK/NACK feedback, and corresponding channel resource number or resource group number used when performing ACK/NACK feedback using channel resources in the uplink control channel resource set.
  • a user terminal comprising:
  • a reading module configured to read configuration signaling sent by the base station, and obtain uplink control channel resource set information that is available for ACK/NACK feedback provided by the user terminal set in the base station;
  • a channel resource determining module configured to detect a PDCCH of a downlink carrier to be fed back, and determine, according to the identifier set in the PDCCH, whether to use channel resources in the uplink control channel resource set ACK/NACK feedback, and a corresponding channel resource number or resource group number used when ACK/NACK feedback is performed using channel resources in the uplink control channel resource set.
  • a system for configuring uplink control channel resources includes:
  • a base station configured to determine, on an uplink carrier that performs ACK/NACK feedback, whether the uplink control channel resource corresponding to the physical downlink control channel PDCCH is present, and when determining that there is no uplink control channel resource,
  • the setting may be sent to the user terminal by using an identifier of the resource;
  • the user terminal is configured to detect a PDCCH of the downlink carrier, and use the corresponding resource to perform ACK/NACK feedback according to the identifier of the available resource in the PDCCH.
  • the example of the invention can reduce the resource reservation and configuration of the uplink feedback channel overhead in the system, and can not only improve the long-term evolution multi-carrier wave Upgrade system performance and compatibility with LTE Release 8 systems.
  • 1 and 2 are schematic diagrams of bandwidth allocation of a long-term evolution multi-carrier system in the prior art
  • FIG. 4 are schematic diagrams of the LTE system (Rd-8) intermediate frequency division duplex FDD system and the time division duplex TDD carrier wave in the prior art;
  • FIG. 5 is a flowchart of a method for configuring an uplink control channel resource according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a carrier application for signal transmission in a specific application environment
  • FIG. 7 is a flowchart of a method for processing a base station end according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a terminal side processing procedure of a method according to an embodiment of the present invention.
  • FIG. 9 is a structural diagram of a base station device according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of a user terminal device according to an embodiment of the present invention.
  • FIG. 11 is a structural diagram of a system for configuring an uplink control channel resource according to an embodiment of the present invention.
  • the embodiment of the present invention provides a method, a device, and a system for configuring an uplink control channel resource.
  • the method includes: determining, by the base station, whether the user terminal is in the uplink of the ACK/NACK feedback, and whether there is a feedback corresponding to the physical downlink control channel PDCCH. If the uplink channel resource is determined to be absent, the base station sets the identifier of the available resource in the PDCCH and sends the identifier to the user terminal.
  • the user terminal uses the corresponding resource to perform ACK/NACK feedback according to the identifier of the available resource.
  • the base station allocates an uplink control channel resource set, where the resource set includes a plurality of channel resource numbers that are available for ACK NACK feedback, and the base station determines whether the user terminal is on the uplink wave for performing ACK/NACK feedback.
  • the user terminal reads the base station Sending the configuration signaling, knowing the set of uplink control channel resources, detecting the PDCCH of the downlink carrier to be fed back, determining whether to use the channel resource in the uplink control channel resource set according to the set identifier, and the channel resource element in the set Usage.
  • this embodiment provides a method for configuring uplink control channel resources based on the consideration of compatible LTE systems.
  • the LTE-A carrier aggregation system it is required to feed back ACK/NACK information corresponding to the PDSCH on multiple downlink carriers and/or ACK/NACK information indicating multiple PDCCHs released by the SPS resources on an uplink carrier PUCCH.
  • the user terminal needs multiple uplink control channel resources to perform ACK/NACK feedback.
  • Step 501 The upper layer uniformly allocates, to the user equipment, an uplink control channel resource set, where the resource set includes a channel resource number that is available for multiple ACK/NACK feedback.
  • the uplink control channel resource set has N>-1 elements, corresponding to the channel resource numbers available for N ACK/NACK feedback, the channel resource elements in the set can be shared by multiple user terminals, and the base station uses the same scheduling restriction. User terminals of a channel resource are time-divisionally fed back to avoid channel resource collision problems.
  • the resource property in the uplink control channel resource set is semi-persistently scheduled, and the base station is Configuring high-level signaling to allocate resources in the uplink control channel resource set.
  • Step 502 The base station determines, on the uplink carrier that performs the ACK/NACK feedback, whether there is an uplink control channel resource of the physical downlink control channel PDCCH to be fed back to the downlink carrier, and sets an identifier in the PDCCH according to the determination result. Determining whether the user terminal uses the channel resources in the uplink control channel resource set for ACK/NACK feedback, and the use of channel resource elements in the set;
  • the uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier wave is to be fed back on the uplink carrier that performs the ACK NACK feedback, that is, the uplink carrier wave for the ACK/NACK feedback is reserved.
  • the uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier uses the resource as the feedback channel used for ACK/NACK feedback. In this case, it is not necessary to use any one of the uplink control channel resource sets allocated by the upper layer;
  • the PDCCH informs the user terminal that the channel resource elements in the set allocated by the higher layer are not used.
  • the PDCCH signaling method can be carried on all PDCCHs.
  • DCI downlink control information
  • lGg2 (N+1 ) l-bit signaling and " lc" g2 (N+1 ) l-bit signaling can also be used with Rel-8 existing
  • the other signaling in the DCI format is jointly encoded, and even the signaling in the existing DCI format is used to represent the N+1 states.
  • the uplink control channel corresponding to the CCE of the PDCCH on the downlink carrier to be fed back is not reserved.
  • one element in the set of uplink control channel resources allocated by the upper layer needs to be used as the feedback channel used for ACK/NACK feedback.
  • the base station uses the PDCCH to inform the user terminal of the resource element number specifically used by the set in the set.
  • the method for signaling the PDCCH signaling may be to newly set " 1 ⁇ 3 ⁇ 42( ⁇ +1 )" 1 bit for the DCI format of all PDCCHs. Signaling, it is also possible to jointly encode " ⁇ 2 ( ⁇ +1 ) 1 bit signaling with other signaling in Rel-8 existing DCI format, and even reuse the signaling in the existing DCI format to represent this N +1 status.
  • Step 503 The user terminal reads the configuration signaling sent by the base station, learns the uplink control channel resource set, detects the PDCCH of the downlink wave to be sent, and determines whether to use the identifier according to the set identifier.
  • the user terminal feeds back ACK/NACK information corresponding to the PDSCH on the downlink carriers 1, 2, 3, 4 and/or ACK/NAC information indicating the PDCCH released by the SPS resources on the uplink carrier 1.
  • the uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier 1 and the downlink carrier 2 is reserved, that is, the uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier is to be fed back. Therefore, the ACK/NACK feedback of the PDSCH on the downlink carrier 1 and the downlink carrier 2 is transmitted on the uplink control channel resources corresponding to the CCEs of the PDCCH on the two downlink carriers.
  • the base station needs to use the PDCCH on the downlink carrier 1 and the downlink carrier 2 to inform the user terminal that the resources in the uplink control channel resource set allocated by the upper layer are not used as the feedback channel. For example, if all for
  • the DCI format on the PDCCH is newly set with " lGg2 (N+1 ) l-bit signaling.
  • the resources in the high-level allocated resource set are used as feedback channels for bearing feedback information.
  • the uplink control channel resources of the downlink carrier wave 3 and the downlink carrier wave 4 are not reserved, that is, there is no uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier wave to be fed back.
  • the base station uses the downlink carrier wave 3
  • the PDCCH is used to inform the user terminal which element of the set is used in the ACK/NACK information of the PDSCH that the carrier bears. If the DCI format of all PDCCHs is newly set, " lGg2 (N+1 )" is set.
  • the identifier "001" can be used to inform the user terminal that the ACK/NACK feedback of the PDSCH on the downlink carrier uses the first channel resource or resource group in the resource set allocated by the upper layer. Feedback channel for bearing feedback information.
  • the base station process is: Step 701.
  • Element corresponding to the channel resources or resource groups available for N ACK/NACK feedback.
  • the elements in the set can be shared by multiple user terminals, and the base station limits the time-division feedback of the user terminals using the same channel resource by scheduling, thereby avoiding the channel resource collision problem.
  • the resource property in the uplink control channel resource set is semi-persistently scheduled, and the base station configures resources in the uplink control channel resource set by using high layer signaling.
  • Step 702 The base station determines, on the uplink carrier that performs ACK/NACK feedback, whether there is an uplink control channel resource to be fed back to the physical downlink control channel PDCCH on the downlink carrier, and determines that the flag is set in the PDCCH.
  • the identifier is used to indicate whether the user terminal uses the channel resources in the uplink control channel resource set for ACK/NACK feedback, and the use of channel resource elements in the set.
  • Case 1 On the uplink carrier that performs ACK/NACK feedback, there is an uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier to be fed back, that is, the downlink to be fed back is reserved on the uplink carrier for performing ACK/NAC feedback.
  • the method for signaling the PDCCH signaling may be to newly set " tog2 N+1 ""1 bit signaling for the DCI format carried on all PDCCHs, or "bg 2 (N+l) l-bit signaling is jointly encoded with other signaling in the existing DCI format of R e i-8, and even the signaling in the existing DCI format is used to represent the N+1 states. If the lGgi(N+1 )"1-bit signaling is newly set for all DCI formats on the PDCCH, the " 1 ⁇ 3 ⁇ 42( ⁇ +1 )1 bit can be set to all zeros, indicating that the upper layer allocation is not used.
  • the elements in the collection of resources
  • Case 2 On the uplink carrier that performs ACK/NACK feedback, there is no uplink control channel resource corresponding to the CCE of the PDCCH on the downlink carrier to be fed back, that is, there is no uplink control corresponding to the CCE of the PDCCH on the downlink carrier to be fed back.
  • Channel resource At this time, the base station selects one element in the set of uplink control channel resources allocated to the user as the feedback channel used for ACK NACK feedback, and indicates the resource element number to the user terminal by using signaling of the PDCCH.
  • the method of notification may be to newly set " lQg2 (N+ W-bit signaling) for all DCI formats on the PDCCH, or to " lG g 2 (N+1 ) l-bit signaling with Rel- 8 Other signaling joint coding in the existing DCI format, even reusing the signaling in the existing DCI format to represent the N+1 states.
  • the ACK/NACK feedback of the PDSCH uses the first channel resource or the first resource group in the resource set allocated by the upper layer as a feedback channel for bearing feedback information.
  • Step 801 Read high-level configuration signaling, and obtain an uplink control channel resource set available for ACK/NACK feedback set in the base station;
  • Step 802 Detect a PDCCH to be fed back the downlink carrier, and determine whether to use an element in the uplink control channel resource set; for example: if the DCI format is newly set for all PDCCHs
  • lQg2 (N+1 ) l-bit signaling when the user terminal detects that the identifier is "000" (that is, the all-zero bit state is detected), it means that it is not necessary to use the elements in the resource set allocated by the upper layer as the feedback channel. And if other bit states are detected, it means that the elements in the resource set allocated by the upper layer need to be used as Feedback channel.
  • the user terminal determines the following two cases according to the detected PDCCH: Case 1: The elements in the uplink control channel resource set are not used. At this time, according to the indication of the CCE pre-agreed by the PDCCH on the downlink carrier to be fed back, the channel resource number or the resource group number used for the ACK/NACK feedback is captured;
  • Case 2 The elements in the uplink control channel resource set are used, and then the corresponding channel resource number or resource group number used for the ACK/NACK feedback is obtained according to the identifier set in the PDCCH (the number is in the range of the uplink control channel resource set) Inside);
  • Step 803 Receive PDSCH, and obtain ACK/NACK feedback information after decoding.
  • Step 804 Send the obtained ACK/NACK feedback information on the channel resource determined in step 802.
  • the implementation of the present invention further provides a base station device, including:
  • the allocation module 901 is configured to allocate an uplink control channel resource set, where the resource set includes at least one or a group of channel resource numbers available for ACK/NACK feedback;
  • the allocation module 901 is further configured to configure, by using the high layer signaling, the resource in the uplink control channel resource set to be sent to the user terminal, and the resource property in the uplink control channel resource set is a semi-sustained resource.
  • the determining module 902 is configured to determine, on the uplink carrier that performs the ACK/NACK feedback, the source, and set an identifier in the PDCCH, where the identifier is used to indicate whether the user terminal uses the channel resource in the uplink control channel resource set.
  • ACK/NACK feedback, and the use of channel resource elements in the channel resource set that is, the corresponding channel resource number or resource group number used when performing ACK/NACK feedback using channel resources in the uplink control channel resource set.
  • the determining module 902 determines that the uplink control channel resource corresponding to the PDCCH on the downlink carrier wave is to be fed back on the uplink carrier that performs the ACK/NACK feedback, and the user terminal is not set in the PDCCH. Corresponding identification of ACK/NACK feedback using channel resources in the uplink control channel resource set;
  • the determining module 02 does not exist if it is determined that the uplink wave of the ACK/NACK feedback is performed.
  • the uplink control channel resource corresponding to the PDCCH on the downlink carrier is fed back, and an identifier of the usable resource with the identifier number or the resource group number is set in the PDCCH, and the identifier of the available resource indicates the source number or the resource group number.
  • the determining module 902 is further configured to set "1. ⁇ ( ⁇ +1)] bit signaling for the DCI format carried on all PDCCHs, and the signaling ⁇ +1 states, there are two status indicators The uplink control source group number is used; the other state is used to indicate that the channel resources in the uplink control channel resource set that are not used by the user terminal perform ACK/NACK feedback.
  • the determining module 902 can be used to jointly encode the " 1 ° bit signaling with other signaling in the DCI format to implement an identifier for setting a usable resource in the physical downlink control channel PDCCH; or
  • the N+1 states where the N states indicate that one of the uplink control channel resource sets is used to indicate that the user terminal does not use channel resources in the uplink control channel resource set for ACK/NACK feedback.
  • an embodiment of the present invention further provides a user terminal, including:
  • the reading module 1001 is configured to read the configuration signaling sent by the base station, and obtain the uplink control channel resource set information that is available for the ACK/NACK feedback provided by the user terminal set in the base station;
  • the channel resource determining module 1002 is configured to detect a PDCCH of the downlink packet to be reversed, according to the PDCCH
  • the identifier set in the PDCCH determines whether to use channel resources in the uplink control channel resource set Perform ACK/NACK feedback, and the channel resource number or resource group number used for ACK/NACK feedback.
  • the channel resource determining module 1002 if it is determined that the uplink control channel resource corresponding to the PDCCH on the downlink carrier wave is to be fed back on the uplink carrier that performs the ACK/NACK feedback, according to the PDCCH in the PDCCH.
  • the identifier of the resource may be used to determine that the corresponding channel resource in the uplink control channel resource set is used for ACK/NACK feedback, where the channel resource number or resource group number used in the resource set is used;
  • the uplink control channel resource corresponding to the PDCCH on the carrier wave is used, and the to-be-feedback channel is used.
  • the embodiment of the present invention further provides a system for configuring an uplink control ramp resource, including:
  • the base station 1101 is configured to determine, on the uplink carrier that performs the ACK/NACK feedback, whether the uplink control channel resource corresponding to the anti-debt physical downlink control channel PDCCH exists, and when it is determined that the uplink control channel resource does not exist, Setting an identifier of the available resource in the PDCCH to send to the user terminal;
  • the user terminal 1102 is configured to detect a PDCCH of the downlink carrier, and use the corresponding resource to perform ACK/NACK anti-hungry according to the identifier of the available resource in the PDCCH.
  • the base station 1101 allocates an uplink control channel resource set, where the resource set includes multiple channel resource numbers that are available for ACK/NACK feedback, and determines whether there is feedback to be sent on the uplink carrier that performs ACK/NACK feedback.
  • the downlink control channel resource of the physical downlink control channel PDCCH is downlinked, and the identifier is set in the PDCCH according to the determination result; the user terminal 1102 is configured to read the configuration signaling sent by the base station 1101, and learn the uplink control channel resource set. Detecting, according to the identifier, determining whether to use channel resources in the uplink control channel resource set, and performing channel resources in using the uplink control channel resource set according to the identifier Channel resource element of the channel resource used for AC/NACK feedback.
  • the base station 1101 determines that the uplink control channel resource of the PDCCH on the downlink carrier is to be fed back on the uplink carrier that performs the AC/NACK feedback, the PDCCH is set to indicate that the user terminal does not use the uplink control.
  • the channel resource in the channel resource set performs the corresponding identifier of the ACK/NACK feedback; the user terminal 1102 uses the downlink carrier to be fed back.
  • the base station 1101 determines the uplink carrier that performs ACK/NACK feedback.
  • the available resource that uses the channel resource number or the resource group number in the uplink control channel resource set when the user terminal performs ACK/NACK feedback is set in the PDCCH.
  • the user terminal 1102 detects the PDCCH of the downlink carrier to be fed back, determines the ACK NACK feedback using the channel resource in the uplink control channel resource set according to the identifier of the available resource, and uses the available resource. Uplink control corresponding to the channel resource number or resource group number indicated by the identifier Channel resources are used as feedback channels for ACK/NACK feedback.
  • the method is a combination of dynamic indication and semi-static indication.
  • the high layer semi-statically allocates a set of uplink control channel resources to the user terminal.
  • the ACK/NACK feedback is performed, when the user terminal needs multiple uplink control channel resources, if there is an ACK/NACK feedback uplink carrier, there is an uplink control channel resource corresponding to the CCE of the PDCCH to be fed back the downlink carrier.
  • the element in the uplink control channel resource set allocated by the upper layer is not required to be used; if there is no uplink control channel resource corresponding to the CCE of the PDCCH on the downlink of the anti-debt downlink, the uplink control channel resource set allocated by using the layer is needed.
  • One element of the feedback channel used as ACK/NACK feedback is performed, when the user terminal needs multiple uplink control channel resources, if there is an ACK/NACK feedback uplink carrier, there is an uplink control channel resource corresponding to the CCE of the PDCCH to be fed back the downlink carrier
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

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Abstract

La présente invention concerne un procédé, un dispositif et un système de configuration de ressources de canal de commande de liaison montante. Le procédé comprend les étapes suivantes : une station de base détermine s'il y a des ressources de canal de commande de liaison montante correspondant à un canal de commande de liaison descendante physique (« Physical Downlink Control Channel » ou PDCCH) d'une porteuse de liaison descendante à renvoyer dans une porteuse de liaison montante pour une rétroaction ACK/NACK, et établit l'identifiant de ressources disponibles dans le PDCCH selon le résultat de la détermination; un équipement utilisateur détecte le PDCCH dans la porteuse de liaison descendante, et utilise les ressources correspondantes pour la rétroaction ACK/NACK selon l'identifiant de ressources disponibles dans le PDCCH. Grâce au procédé, au dispositif et au système proposés, le gaspillage de ressources entraîné par l'utilisation de canal de rétroaction de liaison montante dans le système pourrait être réduit.
PCT/CN2010/001729 2009-11-03 2010-10-29 Procédé, dispositif et système de configuration de ressources de canal de commande de liaison montante WO2011054176A1 (fr)

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