WO2011044820A1 - 一种上行控制信道资源配置方法、设备和*** - Google Patents

一种上行控制信道资源配置方法、设备和*** Download PDF

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Publication number
WO2011044820A1
WO2011044820A1 PCT/CN2010/077429 CN2010077429W WO2011044820A1 WO 2011044820 A1 WO2011044820 A1 WO 2011044820A1 CN 2010077429 W CN2010077429 W CN 2010077429W WO 2011044820 A1 WO2011044820 A1 WO 2011044820A1
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WIPO (PCT)
Prior art keywords
carrier
downlink carrier
control channel
pdcch
uplink
Prior art date
Application number
PCT/CN2010/077429
Other languages
English (en)
French (fr)
Inventor
林亚男
沈祖康
潘学明
Original Assignee
大唐移动通信设备有限公司
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 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to KR1020127009545A priority Critical patent/KR101368417B1/ko
Priority to EP10823050.9A priority patent/EP2490496B8/en
Priority to US13/501,445 priority patent/US9860038B2/en
Priority to JP2012533468A priority patent/JP2013507859A/ja
Priority to MX2012004031A priority patent/MX2012004031A/es
Publication of WO2011044820A1 publication Critical patent/WO2011044820A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453Resources in frequency domain, e.g. a carrier in FDMA
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method, a device, and a system for configuring an uplink control channel resource. Background technique
  • LTE Long Term Evolution
  • 3G 3rd Generation, 3rd Generation Mobile Communication System
  • LTE improves and enhances 3G air access technology, using OFDM (Orthogonal Frequency Division Multiplexing).
  • MIMO Multiple Input Multiple Output
  • LTE can provide downlink peak rates of 100 Mbit/s and uplink 50 Mbit/s in a 20 MHz spectrum bandwidth, improving the performance of cell edge users, increasing cell capacity, and reducing system delay.
  • the technical characteristics of LTE include high data rate, packet transmission, low delay, wide area coverage and backward compatibility.
  • a spectrum of 100 M bandwidth can be directly allocated, as shown in the single spectrum system shown in FIG. Intention; It is also possible to aggregate some of the spectrum allocated to the existing system and make up a wider system bandwidth for use in a long-term evolution multi-carrier system, as shown in the schematic diagram of the spectrum aggregation system shown in FIG.
  • the uplink and downlink carriers in the system can be asymmetrically configured, that is, the user may occupy N ⁇ 1 carriers for downlink transmission, and occupy M ⁇ 1 carriers for uplink transmission.
  • the uplink control signaling will occupy both ends of the frequency band and use the frequency hopping mode for transmission, that is, in two time slots in one subframe, the uplink control signaling will occupy different frequency bands for transmission.
  • the system reserves a certain resource in the uplink subframe for uplink control channel transmission.
  • the UE User Equipment
  • the CCE Control Channel Element
  • n c CE Physical Downlink Control Channel
  • the number ( nAN ) that is, each PDCCH corresponds to one available uplink control channel resource, and the available uplink control channel resource is reserved for each PDCCH.
  • the invention provides a method, a device and a system for configuring an uplink control channel resource, so as to save system resources and improve transmission efficiency of the system.
  • an embodiment of the present invention provides a method for configuring an uplink control channel resource, including:
  • the network side device determines a downlink carrier set of the user equipment UE and a downlink carrier that has a cell-specific pairing relationship in the downlink carrier set;
  • the network side device configures an uplink control channel resource according to the determined result that the downlink carrier does not have a cell-specific pairing relationship.
  • the embodiment of the invention further provides a network side device, including:
  • a determining module configured to determine a downlink carrier of the UE and a downlink carrier that has a cell-specific pairing relationship in the downlink carrier set;
  • a configuration module configured to configure an uplink control channel resource for the downlink carrier that does not have a cell-specific pairing relationship according to the determination result of the determining module.
  • the embodiment of the invention further provides a method for configuring an uplink control channel resource, including:
  • the UE receives the configuration information from the network side device, where the configuration information includes the uplink control channel resource configured by the network side device as the unpaired downlink carrier;
  • An embodiment of the present invention further provides a user equipment UE, including:
  • a transceiver module configured to receive configuration information from a network side device, where the configuration information includes an uplink control channel resource configured by the network side device as a non-paired downlink carrier, and a transmission module, configured to use the uplink control channel resource to transmit The ACK/NACK feedback information corresponding to the PDCCH on the unpaired downlink carrier.
  • An embodiment of the present invention further provides an uplink control channel resource configuration system, including a network side device and a UE, where
  • the network side device is configured to: determine an uplink carrier set of the UE and a downlink carrier that has a cell-specific pairing relationship in the downlink carrier set; and configure an uplink control channel resource for the downlink carrier that does not have a cell-specific pairing relationship according to the determination result;
  • the UE is configured to receive configuration information from the network side device, where the configuration information includes an uplink control channel resource configured by the network side device as a non-paired downlink carrier, and using the uplink control channel resource transmission station.
  • the ACK/NACK feedback information corresponding to the PDCCH on the unpaired downlink carrier is described.
  • the present invention has at least the following advantages:
  • the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, and is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • FIG. 1 is a schematic diagram of a single spectrum system in the prior art
  • FIG. 2 is a schematic diagram of a spectrum aggregation system in the prior art
  • FIG. 3 is a schematic diagram of a transmission mode of an FDD system in the prior art
  • FIG. 4 is a schematic diagram of a transmission mode of a TDD system in the prior art
  • FIG. 5 is a schematic flowchart of a method for configuring an uplink control channel resource according to Embodiment 1 of the present invention.
  • FIG. 6 is a schematic flowchart of a method for configuring an uplink control channel resource according to Embodiment 2 of the present invention.
  • FIG. 7 is a schematic diagram of a cell-specific pairing relationship between a downlink carrier and an uplink carrier according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of feedback of an ACK/NACK corresponding to a PDCCH on a downlink carrier in an uplink carrier according to an embodiment of the present invention
  • FIG. 9 is an ACK/NACK feedback for cross-carrier scheduling in an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of transmission of ACK/NACK feedback during cross-carrier scheduling in the embodiment of the present invention.
  • 11 is a schematic diagram of correspondence between uplink control channel resources and PDCCH when multiple uplink control channel resources are configured in the embodiment of the present invention
  • FIG. 12 is a schematic structural diagram of a network side device according to Embodiment 3 of the present invention
  • FIG. 13 is a schematic structural diagram of a user equipment according to Embodiment 4 of the present invention.
  • the base station may configure the UE to perform asymmetric carrier aggregation according to the aggregation capability of the UE and the specific service requirements, and the DL (Downlink, downlink)
  • the DL (Downlink, downlink) When the number of carriers is larger than the UL (UpLink) carrier, if you want to flexibly support all kinds of asymmetric aggregation, the system needs to reserve corresponding feedback resources for each downlink carrier in each uplink carrier. As a result, there is a serious waste of resources in the uplink carrier, and the data transmission may be performed without the available uplink resources, and the system transmission efficiency is seriously affected.
  • the embodiment of the present invention provides an uplink control channel resource configuration, and the uplink control channel is provided.
  • Resource configuration is a method of dynamically and quasi-static resource allocation, which can significantly reduce the size of control channel resources reserved in each uplink component carrier, thereby improving uplink transmission efficiency.
  • Embodiment 1 of the present invention provides a method for configuring an uplink control channel resource, as shown in FIG. 5, including the following steps:
  • Step 501 The network side device determines an uplink carrier set and a downlink carrier set of the UE. There is a downlink carrier with a cell-specific pairing relationship.
  • Step 502 The network side device configures an uplink control channel resource according to a downlink carrier that does not have a cell-specific pairing relationship according to the determination result.
  • the method further includes: determining, by the network side device, a carrier set that is aggregated by the UE, where the carrier set includes an uplink carrier Set and downlink carrier set.
  • the paired downlink carrier is a downlink carrier that is determined to be the cell-specific pairing relationship
  • the unpaired downlink carrier is the downlink carrier that does not exist in the cell-specific pairing relationship.
  • the network side device configures the uplink control channel resource for the downlink carrier that does not have the cell-specific pairing relationship according to the determination result: the network side device configures the PDCCH corresponding to the UE by using the high layer signaling.
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or a PDCCH that is released by SPS (semi-persistently scheduled) resources.
  • the network-side device configures, by using the high-layer signaling, the uplink control channel resource used by the PDCCH to correspond to the ACK/NACK feedback information of the PDCCH.
  • the ACK/NACK feedback information corresponding to the PDCCH is configured with N - M ' uplink control channel resources; where N is the number of aggregated downlink carriers, M is the number of uplink carriers, and M uplink carriers and M ' downlink carriers have Pairing relationship, M ' ⁇ N.
  • the network-side device uses high-layer signaling as
  • the uplink control channel resource used by the UE to configure the ACK/NACK feedback information corresponding to the PDCCH includes: the network side device corresponding to the PDCCH by using the high layer signaling
  • ACK/NACK feedback information configures k uplink control channel resources; Ke ⁇ 0,l,..., N ⁇ .
  • the network side device determines that the PDCCH of the UE cannot be transmitted on the unpaired downlink carrier
  • the network side device determines that the number of PDCCHs transmitting the UE on the unpaired downlink carrier is not more than k.
  • Step 503 The UE receives the configuration information from the network side device, where the configuration information includes the uplink control channel resource configured by the network side device as the unpaired downlink carrier.
  • Step 504 The UE uses the uplink control channel resource to transmit ACK/NACK feedback information corresponding to the PDCCH on the unpaired downlink carrier.
  • the configuration information further includes: aggregated carrier set information, no paired downlink carrier information, and paired downlink carrier information determined by the network side device;
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or , the PDCCH released by the SPS resource.
  • the UE determines, according to the carrier number of the PDCCH and the occupied CCE number, when the feedback information corresponding to the PDCCH is transmitted.
  • the UE transmits the ACK/NACK feedback information corresponding to the PDCCH on the paired downlink carrier on the paired uplink carrier of the paired downlink carrier.
  • the UE determines, according to the CCE location occupied by the PDCCH on the paired downlink carrier, the uplink control channel resource used when transmitting the feedback information corresponding to the PDCCH.
  • the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, and is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • the second embodiment of the present invention provides an uplink control channel resource configuration method, where the uplink control channel resource configuration method is applied to a long-term evolution multi-carrier system using spectrum aggregation technology, and is compatible with an existing LTE system, as shown in FIG.
  • Step 601 The network side device determines whether there is a cell-specific pairing relationship between the uplink and downlink carriers. When there is a cell-specific pairing relationship, the process proceeds to step 602. When there is no cell-specific pairing relationship, the process proceeds to the step. 603.
  • the network side device includes, but is not limited to, an RNC (Radio Network Controller), an NB (Node B, a Node B), an eNB (enhanced Node B), a base station, and the like.
  • the network side device is not limited to the above devices, and all devices located on the network side are within the protection scope of the present invention. For convenience of description, in the embodiment of the present invention, the network side device is described by taking a base station as an example.
  • downlink carrier 1 and downlink carrier 2 As shown in FIG. 7, for downlink carrier 1 and downlink carrier 2, a cell-specific pairing relationship corresponding to uplink carrier 1; and for downlink carrier 3 and downlink carrier 4, a cell exclusive corresponding to the uplink carrier Pairing relationship.
  • Step 602 The base station transmits, by using the uplink control channel resource reserved in the paired UL carrier, the ACK/NACK feedback corresponding to the PDCCH on the DL carrier in which the pairing relationship exists. That is, the base station reserves the uplink control channel resource for the PDCCH on the DL carrier in the paired UL carrier corresponding to the DL carrier, and then the UE uses the reserved uplink control channel resource to transmit the ACK/NACK feedback corresponding to the PDCCH.
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or a PDCCH that is released by the SPS resource.
  • the pairing relationship can be used to determine which uplink carrier the ACK/NACK corresponding to the PDCCH on each downlink carrier will be fed back. , as shown in Figure 8.
  • the uplink control channel resource obtained according to the CCE number is on the UL carrier 1, that is, the DL carrier 1 and the UL carrier 1 have a corresponding pairing relationship (pairing 1), and the PDCCH corresponding to the PDCCH on the DL carrier 1 ACK/NACK will be fed back in UL carrier 1;
  • the uplink control channel corresponding to the PDCCH on the DL carrier 2 is in the UL.
  • the uplink control channel corresponding to the PDCCH on DL carrier 3 and DL carrier 4 is on UL carrier 2. That is, DL carrier 2 and UL carrier 1 have a corresponding pairing relationship (pairing 2), ACK/NACK corresponding to PDCCH on DL carrier 2 will be fed back in UL carrier 1; DL carrier 3 has corresponding pairing with UL carrier 2 Relationship (pairing 3), ACK/NACK corresponding to the PDCCH on DL carrier 3 will be fed back in UL carrier 2; DL carrier 4 has a corresponding pairing relationship with UL carrier 2 (pairing 4), PDCCH on DL carrier 4 The corresponding ACK/NACK will be fed back in UL carrier 2.
  • the base station determines that the UE needs to perform carrier aggregation, it is learned that the number of DL carriers to be aggregated is N, and the number of UL carriers is M.
  • M of the UL carriers have a pairing relationship with M ' DL carriers. It can be seen that M ' ⁇ N (M ' DL carriers are some or all of N DL carriers that need to be aggregated), then the UE will use the paired UL.
  • the PDCCH/NACK feedback corresponding to the PDCCH on the DL carrier (ie, M ' DL carriers) of the paired UL carrier is transmitted by the uplink control channel resource reserved in the carrier, and is not described in detail here.
  • the UE determines, according to the CCE location occupied by the PDCCH on the paired downlink carrier, the uplink control channel resource used when transmitting the feedback information corresponding to the PDCCH, in the embodiment of the present invention.
  • the base station configures the uplink control channel resource for the UE through the high layer signaling, and uses the configured uplink control channel resource to transmit the ACK/NACK feedback corresponding to the PDCCH on the downlink carrier without the pairing relationship.
  • the base station needs to pass high-layer signaling (for example, RRC (Radio Resource Control) signaling is configured to allocate an uplink control channel resource for the UE, and use the configured uplink control channel resource to transmit the ACK/NACK corresponding to the PDCCH on the downlink carrier without the pairing relationship.
  • RRC Radio Resource Control
  • the base station can configure the N-M′ uplink control channel resources for the UE by using the high-layer signaling, where the number of DL carriers to be aggregated is N, and the number of UL carriers is M. And the M UL carriers have a pairing relationship with the M′ DL carriers. It can be seen that, for the M′ DL carriers, the uplink control channel resources are reserved on the M UL carriers corresponding thereto, and then the M The ACK/NACK feedback is transmitted on the UL carrier, and the process has been described in detail in step 602, and details are not described in detail in this step.
  • the remaining N-M' DL carriers without a pairing relationship need to be configured by the base station to configure the uplink control channel resources by using the high-level signaling, and the UE uses the configured uplink control channel resources to transmit the N- M ' DL carriers.
  • Corresponding ACK/NACK feedback corresponding ACK/NACK feedback.
  • the base station needs to configure one uplink control channel resource for the UE through higher layer signaling, and The UE uses the uplink control channel resource to transmit ACK/NACK information corresponding to the PDCCH on the DL carrier 3.
  • the base station needs to configure the uplink control channel resource for the UE by using high-layer signaling (for example, RRC signaling). And transmitting, by the UE, the ACK/NACK feedback corresponding to the PDCCH on the downlink carrier without the pairing relationship by using the configured uplink control channel resource.
  • high-layer signaling for example, RRC signaling
  • the base station may configure 1 ⁇ () , 1 -, ⁇ uplink control channel resources by using the high-level signaling, and use the k uplink control channel resources by the UE to transmit the PDCCH on the DL carrier without the pairing relationship.
  • Corresponding ACK/NACK information the base station needs to limit that at most k PDCCHs can be transmitted on the unpaired DL carrier.
  • the PDCCH for scheduling carrier 1, the PDCCH for scheduling carrier 2, the PDCCH for scheduling carrier 3, and the PDCCH for scheduling carrier 4 all need to be transmitted on DL carrier 1 and DL carrier 2, and then UL carrier 1 can be used.
  • the ACK/NACK feedback information corresponding to the PDCCH is transmitted.
  • the ACK/NACK information corresponding to the two PDCCHs transmitted on the DL carrier without the pairing relationship will be transmitted using the uplink control channel resources configured by the upper layer.
  • the PDCCH of the scheduling carrier 1 and the PDCCH of the scheduling carrier 2 are transmitted on the DL carrier 1 and the DL carrier 2, respectively, and then the PDCCH of the scheduling carrier 1 and the PDCCH of the scheduling carrier 2 can be transmitted using the UL carrier 1 Corresponding ACK/NACK feedback information.
  • the PDCCH of the scheduling carrier 3 and the PDCCH of the scheduling carrier 4 are transmitted on the DL carrier 3, and the PDCCH of the scheduling carrier 1 and the PDCCH of the scheduling carrier 2 are transmitted by the two uplink control channel resources configured by the base station for the UE. ACK/NACK feedback information.
  • the corresponding relationship between the uplink control channel resource and the PDCCH may be through the carrier where the PDCCH is located.
  • the number and the occupied CCE number are implicitly determined. For example, in the DL carrier with the smallest carrier number, the PDCCH with the smallest CCE number corresponds to the first configured uplink control channel resource, and then is arranged in ascending order according to CCE, and then arranged in ascending order according to the carrier number, as shown in FIG.
  • the UE determines the uplink control used when transmitting the feedback information corresponding to the PDCCH according to the carrier number of the PDCCH and the occupied CCE number.
  • the channel resources are not described in detail in the embodiments of the present invention.
  • the foregoing base station configures multiple uplink control channel resources for the UE by using the high layer signaling, and the eNB is arbitrarily configured according to the actual needs, which is not detailed in the embodiment of the present invention.
  • the method provided by the present invention in the long-term evolution multi-carrier system, when carrier aggregation is used, the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, and is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • the third embodiment of the present invention provides a network side device. As shown in FIG. 12, the method includes: a determining module 121, configured to determine a downlink carrier set of the UE and a downlink carrier that has a cell-specific pairing relationship in the downlink carrier set.
  • the configuration module 122 is configured to configure, according to the determination result of the determining module 121, an uplink control channel resource for a downlink carrier that does not have a cell-specific pairing relationship.
  • the determining module 121 is further configured to: determine, by the UE, an aggregated carrier set, where the carrier set includes an uplink carrier set and a downlink carrier set.
  • the determining module 121 is further configured to: when the uplink carrier set includes the paired uplink carrier of the paired downlink carrier in the downlink carrier set, and determine that the paired downlink carrier is determined to be the downlink of the cell exclusive pairing relationship Carrier wave
  • the uplink carrier set does not include the paired uplink carrier of the unpaired downlink carrier in the downlink carrier set, determining that the unpaired downlink carrier is a downlink carrier that does not have the cell-specific pairing relationship.
  • the downlink carrier is an unpaired downlink carrier
  • the configuration module 122 is specifically configured to configure an uplink control channel resource used by the UE for the ACK/NACK feedback information corresponding to the PDCCH by using the high layer signaling.
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or a PDCCH that is semi-persistently scheduled to release SPS resources.
  • the configuration module 122 is further configured to: configure, by using the high layer signaling, N - M ' uplink control channel resources for the ACK/NACK feedback information corresponding to the PDCCH;
  • N is the number of downlink carriers aggregated
  • M is the number of uplink carriers
  • M The uplink carrier has a pairing relationship with M ' downlink carriers, M ' ⁇ N.
  • the configuration module 122 is further configured to: correspond to the PDCCH by using high layer signaling.
  • ACK/NACK feedback information is configured with k uplink control channel resources
  • the configuration module 122 is further configured to: determine that the PDCCH of the UE is not transmitted on the unpaired downlink carrier;
  • the configuration module 122 is further configured to determine that the number of PDCCHs for transmitting the UE on the unpaired downlink carrier is not more than k.
  • the device provided by the present invention in the long-term evolution multi-carrier system, when carrier aggregation is used, the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • the modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • a user equipment UE is also proposed in the fourth embodiment of the present invention. As shown in FIG. 13, the method includes:
  • the transceiver module 131 is configured to receive configuration information from a network side device, where the configuration information includes an uplink control channel resource configured by the network side device as a paired downlink carrier.
  • the transmitting module 132 is configured to use the uplink control channel resource to transmit ACK/NACK feedback information corresponding to the PDCCH on the unpaired downlink carrier.
  • the configuration information further includes: aggregated carrier set information, unpaired downlink carrier information, and paired downlink carrier information determined by the network side device;
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or, The PDCCH released by the SPS resource.
  • the downlink carrier is a paired downlink carrier
  • the transmitting module 132 is further configured to transmit, according to the paired uplink carrier of the paired downlink carrier, ACK/NACK feedback information corresponding to the PDCCH on the paired downlink carrier.
  • the UE further includes: a determining module 133, configured to determine, according to the carrier number where the PDCCH is located and the occupied CCE number, the information used when transmitting the feedback information corresponding to the PDCCH Uplink control channel resources.
  • the device provided by the present invention in the long-term evolution multi-carrier system, when carrier aggregation is used, the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • modules of the device of the present invention may be integrated or integrated.
  • the above modules can be combined into one module, or can be further split into multiple sub-modules.
  • An embodiment of the present invention further provides an uplink control channel resource configuration system, including a network side device and a UE, where
  • the network side device is configured to: determine an uplink carrier set of the UE and a downlink carrier that has a cell-specific pairing relationship in the downlink carrier set; and configure an uplink control channel resource for the downlink carrier that does not have a cell-specific pairing relationship according to the determination result;
  • the UE is configured to receive configuration information from the network side device, where the configuration information includes an uplink control channel resource configured by the network side device as a non-paired downlink carrier, and using the uplink control channel resource transmission station.
  • the ACK/NACK feedback information corresponding to the PDCCH on the unpaired downlink carrier is described.
  • the uplink carrier set when the uplink carrier set includes a paired uplink carrier of a paired downlink carrier in a downlink carrier set, the paired downlink carrier is a downlink carrier that exists in the cell-specific pairing relationship;
  • the unpaired downlink carrier is a downlink carrier that does not have the cell-specific pairing relationship.
  • the network side device is further configured to: determine, by the UE, an aggregated carrier set, where the carrier set includes an uplink carrier set and a downlink carrier set.
  • the downlink carrier is an unassociated downlink carrier
  • the uplink control channel resource used by the PDCCH corresponding to the ACK/NACK feedback information is configured for the UE through the high layer signaling.
  • the PDCCH includes: a PDCCH that dynamically schedules downlink data transmission, and/or a PDCCH that is released by the SPS resource.
  • N-M′ uplink control channel resources for the ACK/NACK feedback information corresponding to the PDCCH by using the high layer signaling; where N is the number of aggregated downlink carriers. M is the number of uplink carriers, and M uplink carriers have a pairing relationship with M ' downlink carriers, M ' ⁇ N.
  • the k uplink control channel resources are configured for the ACK/NACK feedback information corresponding to the PDCCH by using the high layer signaling; where k e ⁇ 0, l, . . . , N ⁇ .
  • the network side device determines that the PDCCH of the UE cannot be uploaded on the unpaired downlink carrier;
  • the network side device determines that the number of PDCCHs transmitting the UE on the unpaired downlink carrier is not more than k.
  • the UE is further configured to: when the downlink carrier is a paired downlink carrier, transmit the ACK/NACK feedback information corresponding to the PDCCH on the paired downlink carrier on the paired uplink carrier of the paired downlink carrier.
  • the uplink control channel resources used when transmitting the feedback information corresponding to the PDCCH are determined according to the carrier number of the PDCCH and the occupied CCE number.
  • the system provided by the present invention in the long-term evolution multi-carrier system, when carrier aggregation is used, the uplink feedback channel overhead in the system is reduced, and resource reservation and configuration can be performed.
  • the method provided by the invention is simple and easy to implement, and is suitable for FDD and TDD systems, can improve the system performance of the long-term evolution multi-carrier upgrade system, and can be compatible with the existing LTE system.
  • a form of software product is embodied, the computer software product being stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the present invention.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into a plurality of sub-modules.

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Description

一种上行控制信道资源配置方法、 设备和*** 本申请要求于 2009年 10月 16 日提交中国专利局, 申请号为 200910236329.7, 发明名称为 "一种上行控制信道资源配置方法、 设 备和***"的中国专利申请的优先权, 其全部内容通过引用结合在本 申请中。 技术领域
本发明涉及通信技术领域,尤其涉及一种上行控制信道资源配置 方法、 设备和***。 背景技术
LTE ( Long Term Evolution, 长期演进)是 3G ( 3rd Generation, 第三代移动通信***) 的演进, LTE改进并增强了 3G的空中接入技 术, 采用 OFDM ( Orthogonal Frequency Division Multiplexing , 正交 频分复用)和 MIMO ( Multiple Input Multiple Output, 多输入多输出) 作为无线网络演进的标准。 LTE能够在 20MHz频谱带宽下, 提供下 行 100Mbit/s与上行 50Mbit/s的峰值速率, 改善了小区边缘用户的性 能, 提高了小区容量, 并降低了***延迟。 其中, LTE的技术特征包 括高数据速率、 分组传送、 低延迟、 广域覆盖和向下兼容。
随着移动终端用户数量的迅速增长,终端用户的业务容量呈指数 增长, 为了满足持续增加的终端用户的业务需求, 需要提供更大的带 宽来满足终端用户的业务和应用所需要的更高峰值速率。即在未来的 移动通信***中, 例如在 B3G ( Beyond three Generation, 后三代) 中或 LTE-A ( LTE- Advanced, 高级 LTE )中, ***将提供更高的峰值 数据速率和小区吞吐量, 同时也需要更大的带宽; 即对于长期演进多 载波***, 需要支持比 LTE***更宽的***带宽, 例如, 100MHz。
具体的, 为了支持比 LTE***更宽的***带宽 (以 100MHz为 例), 可以直接分配 100M带宽的频谱, 如图 1所示的单频谱***示 意图; 还可以将分配给现有***的一些频谱聚合起来, 并凑成更宽的 ***带宽, 以供给长期演进的多载波***使用, 如图 2所示的频谱聚 合***示意图。 在图 2所示的频谱聚合情况下, ***中的上下行载波 可以不对称配置, 即用户可能会占用 N≥l个载波进行下行传输, 并占 用 M≥l个载波进行上行传输。
现有技术中, 已经完成了 LTE***的基本传输方式, 如图 3所 示的 FDD ( Frequency Division Duplex, 频分双工) ***的传输方式 示意图, 和图 4所示的 TDD ( Time Division Duplexing, 时分双工 ) ***的传输方式示意图。其中,在图 3和图 4中,对于每个工作载波, 分别定义了下行信令、 下行数据、 上行信令、 上行数据、 以及彼此之 间的传输关系。
具体的, 上行控制信令将占用频带的两端, 并使用跳频方式进行 传输, 即在一个子帧内的两个时隙中, 上行控制信令将占用不同的频 段来进行传输。 此时, 由于无法动态获知上行子帧中需要承载的控制 信道数量, ***将在上行子帧中预留出一定的资源用于上行控制信道 传输。
此外, 对于非持续调度的 ACK ( ACKnowledge Character, 确认 字符) /NACK ( Negative ACKnowledgment Character, 不确认字符) 反馈传输, 进行反馈的 UE ( User Equipment, 用户设备 )将根据自身 接收到的下行控制信令 PDCCH ( Physical Downlink Control Channel, 物理下行链路控制信道)所占用的 CCE ( Control Channel Element, 控制信道元素)编号 (ncCE ), 计算出该 UE进行 ACK/NACK反馈所 使用的资源 (即信道)编号( nAN ), 即每个 PDCCH都对应一个可用 的上行控制信道资源, 并为每个 PDCCH预留该可用的上行控制信道 资源。 在实现本发明的过程中,发明人发现现有技术中至少存在以下缺 点:
长期演进多载波***中, 在使用载波聚合时, 若每个上行载波内 都为各下行载波预留相应的反馈资源,则上行载波中将存在严重的资 源浪费, 甚至会造成没有可用的上行资源进行数据传输, 严重影响了 ***的传输效率。 发明内容
本发明提供一种上行控制信道资源配置方法、设备和***, 以节 省***资源, 提高***的传输效率。
为了达到上述目的,本发明实施例提供一种上行控制信道资源配 置方法, 包括:
网络侧设备确定用户设备 UE的上行载波集合和下行载波集合中 存在小区专属配对关系的下行载波;
所述网络侧设备根据确定结果为不存在小区专属配对关系的下 行载波配置上行控制信道资源。
本发明实施例还提供了一种网络侧设备, 包括:
确定模块, 用于确定 UE的上行载波集合和下行载波集合中存在 小区专属配对关系的下行载波;
配置模块,用于根据确定模块的确定结果为不存在小区专属配对 关系的下行载波配置上行控制信道资源。
本发明实施例还提供了一种上行控制信道资源配置方法, 包括:
UE接收来自网络侧设备的配置信息, 所述配置信息中包括所述 网络侧设备为无配对下行载波配置的上行控制信道资源;
所述 UE使用所述上行控制信道资源传输所述无配对下行载波上 的 PDCCH对应的 ACK/NACK反馈信息。
本发明实施例还提供了一种用户设备 UE, 包括:
收发模块, 用于接收来自网络侧设备的配置信息, 所述配置信息 中包括所述网络侧设备为无配对下行载波配置的上行控制信道资源; 传输模块,用于使用所述上行控制信道资源传输所述无配对下行 载波上的 PDCCH对应的 ACK/NACK反馈信息。 本发明实施例还提供了一种上行控制信道资源配置***,包括网 络侧设备和 UE, 其中,
所述网络侧设备用于, 确定所述 UE的上行载波集合和下行载波 集合中存在小区专属配对关系的下行载波;并根据确定结果为不存在 小区专属配对关系的下行载波配置上行控制信道资源;
所述 UE, 用于接收来自所述网络侧设备的配置信息, 所述配置 信息中包括所述网络侧设备为无配对下行载波配置的上行控制信道 资源; 并使用所述上行控制信道资源传输所述无配对下行载波上的 PDCCH对应的 ACK/NACK反馈信息。
与现有技术相比, 本发明至少具有以下优点:
在长期演进多载波***, 当使用载波聚合时, 降低了***中上行 反馈信道开销, 并可以进行资源的预留和配置。 本发明提供的方法筒 单、 易于实施, 适用于 FDD和 TDD***, 可以提高长期演进多载波 升级***的***性能, 而且可以 ^艮好的与现有的 LTE***兼容。 附图说明
图 1是现有技术中单频谱***示意图;
图 2是现有技术中频谱聚合***示意图;
图 3是现有技术中 FDD***的传输方式示意图;
图 4是现有技术中 TDD***的传输方式示意图;
图 5 是本发明实施例一提供的一种上行控制信道资源配置方法 流程示意图;
图 6是本发明实施例二提供的一种上行控制信道资源配置方法 流程示意图;
图 7 是本发明实施例中下行载波与上行载波有对应的小区专属 的配对关系示意图;
图 8 是本发明实施例中下行载波上的 PDCCH 所对应的 ACK/NACK在上行载波中进行反馈的示意图;
图 9是本发明实施例中 时的跨载波调度时的 ACK/NACK反馈 的传输示意图;
图 10是本发明实施例中为 时的跨载波调度时的 ACK/NACK反 馈的传输示意图;
图 11是本发明实施例中配置多个上行控制信道资源时, 上行控 制信道资源与 PDCCH的对应关系示意图;
图 12是本发明实施例三提供的一种网络侧设备结构示意图; 图 13是本发明实施例四提供的一种用户设备结构示意图。
具体实施方式
针对现有技术中使用频谱聚合技术的长期演进的多载波***中, 可能存在多种聚合能力的 UE, 基站根据 UE的聚合能力及具体业务 的需求可能将配置 UE进行非对称载波聚合, 且 DL ( Downlink, 下 行)载波数大于 UL ( UpLink, 上行)载波时, 如果要灵活的支持各 种比例的非对称聚合,则***需要在每个上行载波内都为各下行载波 预留相应的反馈资源, 导致上行载波中存在严重的资源浪费, 甚至会 造成没有可用的上行资源进行数据传输,并严重影响***传输效率的 问题; 本发明实施例提供了一种上行控制信道资源配置, 该上行控制 信道资源配置是动态和准静结合进行资源配置的方法,可以显著降低 各上行成员载波内预留的控制信道资源大小, 从而提高上行传输效 率。
下面将结合本发明中的附图, 对本发明中的技术方案进行清楚、 完整地描述, 显然, 所描述的实施例仅仅是本发明的一部分实施例, 而不是全部的实施例。基于本发明中的实施例, 本领域普通技术人员 在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发 明保护的范围。
本发明实施例一提供一种上行控制信道资源配置方法,如图 5所 示, 包括以下步骤:
步骤 501 , 网络侧设备确定 UE的上行载波集合和下行载波集合 中存在小区专属配对关系的下行载波。
步骤 502, 所述网络侧设备根据确定结果为不存在小区专属配对 关系的下行载波配置上行控制信道资源。
具体的,所述网络侧设备确定上行载波集合和下行载波集合中存 在小区专属配对关系的下行载波之前, 还包括: 所述网络侧设备确定 UE进行聚合的载波集合, 所述载波集合包括上行载波集合和下行载 波集合。
当所述上行载波集合中包含下行载波集合中的配对下行载波的 配对上行载波时;所述配对下行载波为确定结果是存在所述小区专属 配对关系的下行载波;
当所述上行载波集合中不包含下行载波集合中的无配对下行载 波的配对上行载波时;所述无配对下行载波为确定结果是不存在所述 小区专属配对关系的下行载波。
当下行载波为无配对下行载波时,所述网络侧设备根据确定结果 为不存在小区专属配对关系的下行载波配置上行控制信道资源包括: 所述网络侧设备通过高层信令为 UE配置 PDCCH对应的 ACK/NACK 反馈信息所使用的上行控制信道资源。 其中, 所述 PDCCH包括: 动 态调度下行数据传输的 PDCCH , 和 /或, SPS ( semi-persistently scheduled, 半持续调度 ) 资源释放的 PDCCH。
当所述 UE不支持跨载波调度时, 所述网络侧设备通过高层信令 为 UE配置 PDCCH对应的 ACK/NACK反馈信息所使用的上行控制 信道资源包括: 所述网络侧设备通过高层信令为所述 PDCCH所对应 的 ACK/NACK反馈信息配置 N - M '个上行控制信道资源;其中, N为 聚合的下行载波数量, M为上行载波数量, 且 M个上行载波与 M '个 下行载波具有配对关系, M '≤N。
当所述 UE支持跨载波调度时, 所述网络侧设备通过高层信令为
UE配置 PDCCH对应的 ACK/NACK反馈信息所使用的上行控制信道 资源包括: 所述网络侧设备通过高层信令为 PDCCH 所对应的
ACK/NACK 反馈信息配置 k 个上行控制信道资源; 其中, k e {0,l,..., N}。
进一步的, 当所述 k = 0时, 所述网络侧设备确定不能在无配对下 行载波上传输所述 UE的 PDCCH;
当所述 k > 0时,所述网络侧设备确定在无配对下行载波上传输所 述 UE的 PDCCH数量不多于 k个。
本发明实施例提供的方法中, 还可以包括:
步骤 503, UE接收来自网络侧设备的配置信息, 所述配置信息 中包括所述网络侧设备为无配对下行载波配置的上行控制信道资源。
步骤 504, 所述 UE使用所述上行控制信道资源传输所述无配对 下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。 其中, 所述 配置信息中还包括: 所述网络侧设备确定的聚合的载波集合信息、 无 配对下行载波信息、 配对下行载波信息; 所述 PDCCH包括: 动态调 度下行数据传输的 PDCCH, 和 /或, SPS资源释放的 PDCCH。
具体的, 对于无配对下行载波, 当同时配置了多个上行控制信道 资源时,所述 UE才艮据所述 PDCCH所在的载波编号和占用的 CCE编 号确定传输所述 PDCCH所对应反馈信息时所使用的上行控制信道资 源。
具体的, 当下行载波为配对下行载波时, 所述 UE在所述配对下 行载波的配对上行载波传输所述配对下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。
而对于配对下行载波,所述 UE将根据配对下行载波上的 PDCCH 所占用的 CCE位置确定传输所述 PDCCH所对应反馈信息时所使用 的上行控制信道资源。
可见, 通过使用本发明提供的方法, 在长期演进多载波***, 当 使用载波聚合时, 降低了***中上行反馈信道开销, 并可以进行资源 的预留和配置。 本发明提供的方法筒单、 易于实施, 适用于 FDD和 TDD ***, 可以提高长期演进多载波升级***的***性能, 而且可 以 ^艮好的与现有的 LTE***兼容。 本发明实施例二提供一种上行控制信道资源配置方法,该上行控 制信道资源配置方法应用于使用频谱聚合技术的长期演进多载波系 统中, 可以兼容现有的 LTE***, 如图 6所示, 包括以下步骤: 步骤 601 , 网络侧设备确定上下行载波间是否存在小区专属的配 对关系, 当存在小区专属的配对关系时, 转到步骤 602, 当不存在小 区专属的配对关系时, 转到步骤 603。 其中, 该网络侧设备包括但不 限于 RNC ( Radio Network Controller, 无线网络控制器)、 NB ( Node B, 节点 B )、 eNB ( enhanced Node B, 增强型节点 B )、 基站等, 需 要说明的是, 该网络侧设备并不局限于上述设备, 所有位于网络侧的 设备均在本发明保护范围之内。 为了方便描述, 本发明实施例中该网 络侧设备均以基站为例进行说明。
如图 7所示, 对于下行载波 1和下行载波 2来说, 与上行载波 1 有对应的小区专属的配对关系;而对于下行载波 3和下行载波 4来说, 与上行载波没有对应的小区专属的配对关系。
步骤 602, 基站将存在配对关系的 DL载波上的 PDCCH所对应 的 ACK/NACK反馈使用配对 UL载波内预留的上行控制信道资源进 行传输。 即基站在 DL载波所对应的配对 UL载波内为该 DL载波上 的 PDCCH预留上行控制信道资源, 继而由 UE使用该预留上行控制 信道资源传输该 PDCCH所对应的 ACK/NACK反馈。其中,该 PDCCH 包括: 动态调度下行数据传输的 PDCCH, 和 /或, SPS 资源释放的 PDCCH。
具体的, 在多载波***中, 上下行载波间将存在一个小区专属的 配对关系, 通过该配对关系, 可以确定每个下行载波上的 PDCCH所 对应的 ACK/NACK将在哪个上行载波中进行反馈, 如图 8所示。
对于 DL载波 1上的 PDCCH,根据 CCE编号得到的上行控制信 道资源在 UL载波 1上, 即 DL载波 1与 UL载波 1有对应的配对关 系(配对 1 ), DL载波 1上的 PDCCH所对应的 ACK/NACK将在 UL 载波 1中进行反馈;
同样的,对于 DL载波 2上的 PDCCH对应的上行控制信道在 UL 载波 1上, DL载波 3和 DL载波 4上的 PDCCH对应的上行控制信 道在 UL载波 2上。即 DL载波 2与 UL载波 1有对应的配对关系(配 对 2 ), DL载波 2上的 PDCCH所对应的 ACK/NACK将在 UL载波 1 中进行反馈; DL载波 3与 UL载波 2有对应的配对关系 (配对 3 ), DL载波 3上的 PDCCH所对应的 ACK/NACK将在 UL载波 2中进行 反馈; DL载波 4与 UL载波 2有对应的配对关系 (配对 4 ), DL载 波 4上的 PDCCH所对应的 ACK/NACK将在 UL载波 2中进行反馈。
进一步的, 基站确定 UE需要进行载波聚合时, 获知需要聚合的 DL载波数量为 N , UL载波数量为 M。 设 M个 UL载波与 M '个 DL 载波具有配对关系, 可以看出, M '≤N ( M '个 DL载波是 N个需要聚 合的 DL载波中的一部分或全部),则 UE将使用配对 UL载波内预留 的上行控制信道资源进行传输存在配对 UL载波的 DL载波(即 M '个 DL载波)上的 PDCCH对应的 ACK/NACK反馈,在此不再详加赞述。
本发明实施例中, 对于存在配对关系的 DL载波, UE将根据配 对下行载波上的 PDCCH所占用的 CCE位置确定传输所述 PDCCH所 对应反馈信息时所使用的上行控制信道资源,本发明实施例中不再详 步骤 603, 基站通过高层信令为 UE配置上行控制信道资源, 并 由 UE使用该配置的上行控制信道资源传输无配对关系的下行载波上 的 PDCCH所对应的 ACK/NACK反馈。
分两种情况说明该配对关系的处理过程:
( 1 ) 如果 UE 不支持跨载波调度, 即每个载波上的 PDSCH ( Physical Downlink Shared Channel, 物理下行共享信道)所对应的 PDCCH只能在本载波内传输,则基站需要通过高层信令(例如, RRC ( Radio Resource Control, 无线资源控制协议 )信令 ) 为 UE配置上 行控制信道资源, 并由 UE使用该配置的上行控制信道资源传输无配 对关系的下行载波上的 PDCCH所对应的 ACK/NACK反馈。
进一步的, 基站可以通过高层信令为 UE配置 N - M '个上行控制 信道资源, 其中, 需要聚合的 DL载波数量为 N , UL载波数量为 M , 且 M个 UL载波与 M '个 DL载波具有配对关系,可以看出,对于该 M ' 个 DL载波,在自身对应的 M个 UL载波上预留了上行控制信道资源, 继而可以在该 M个 UL载波上传输 ACK/NACK反馈, 该过程在步骤 602中已经详细说明, 本步骤中不再详加赘述。
而剩下的没有配对关系的 N - M '个 DL载波, 需要由基站通过高 层信令配置上行控制信道资源, 并由 UE使用该配置的上行控制信道 资源传输该 N - M '个 DL载波所对应的 ACK/NACK反馈。
例如, 当 UE占用 N = 3个下行载波, 该下行载波分别为: DL载 波 1、 DL载波 2和 DL载波 3, 在 3个下行载波中, DL载波 1和 DL 载波 2均与上行载波(例如, UL载波 1 )进行聚合时,则 M =l个, M ' = 2 个, 则 N - M ' = l ; 此时, 基站需要通过高层信令为 UE配置 1个上行 控制信道资源, 并由 UE使用该上行控制信道资源传输 DL载波 3上 的 PDCCH所对应的 ACK/NACK信息。
( 2 )如果 UE支持跨载波调度, 即不同载波上的 PDSCH所对应 的 PDCCH可以在同一个 DL载波内传输, 则基站需要通过高层信令 (例如, RRC信令 )为 UE配置上行控制信道资源, 并由 UE使用该 配置的上行控制信道资源传输无配对关系的下行载波上的 PDCCH所 对应的 ACK/NACK反馈。
进一步的,基站可以通过高层信令为 1¾配置1^{()1—,^个上行 控制信道资源, 并由 UE使用该 k个上行控制信道资源传输无配对关 系的 DL载波上的 PDCCH所对应的 ACK/NACK信息。 此时, 基站 需要限制在无配对的 DL载波上最多只能传输 k个 PDCCH。
当 k = 0时, 则基站不能在无配对关系 DL 载波上传输 UE 的 PDCCH; 例如, UE占用 N = 4个下行载波, 分别为: DL载波 1 , DL 载波 2, DL载波 3和 DL载波 4; 而 DL载波 1和 DL载波 2和 M = 1 个上行载波(即 UL载波 1 )具有配对关系,基站通过高层信令给 UE 配置 k个可用的上行控制信道资源, 在 k = 0时, 则所有的 PDCCH只 能在 DL载波 1和 DL载波 2上进行传输, 从而使用该 UL载波 1传 输 PDCCH所对应的 ACK/NACK反馈信息, 如图 9所示。 从图 9可以看出,调度载波 1的 PDCCH、调度载波 2的 PDCCH、 调度载波 3的 PDCCH和调度载波 4的 PDCCH均需要在 DL载波 1 和 DL载波 2上进行传输, 继而可以使用 UL载波 1传输 PDCCH所 对应的 ACK/NACK反馈信息。
当^^ > 0时, 则基站可以在无配对关系的 DL载波上传输不多于 k 个 PDCCH; 例如, 当基站通过高层信令为 UE配置了 2个上行控制 信道资源时, 则 k = 2 , 无配对关系的 DL载波上传输的 2个 PDCCH 所对应的 ACK/NACK信息将使用高层配置的上行控制信道资源进行 传输。 如图 10所示, 为 k = 2时的跨载波调度时的 ACK/NACK反馈 的传输示意图。
从图 10可以看出,调度载波 1的 PDCCH、调度载波 2的 PDCCH 分别在 DL载波 1和 DL载波 2上进行传输, 继而可以使用 UL载波 1 传输调度载波 1 的 PDCCH、 调度载波 2 的 PDCCH 所对应的 ACK/NACK反馈信息。 而调度载波 3 的 PDCCH和调度载波 4的 PDCCH是在 DL载波 3上进行传输的,可以通过基站为 UE配置的 2 个上行控制信道资源传输调度载波 1 的 PDCCH、 调度载波 2 的 PDCCH所对应的 ACK/NACK反馈信息。
具体的, 当同时配置了多个上行控制信道资源时(例如, 基站通 过高层信令为 UE配置了 2个上行控制信道资源 ), 则上行控制信道 资源与 PDCCH的对应关系可以通过 PDCCH所在的载波编号和占用 的 CCE编号隐式确定。 例如, 载波编号最小的 DL载波内, CCE编 号最小的 PDCCH对应第一个配置的上行控制信道资源, 然后先按照 CCE升序进行排列, 再按照载波编号升序进行排列, 如图 11所示。 即对于无配对的下行载波来说, 当同时配置了多个上行控制信道资源 时, UE将根据 PDCCH所在的载波编号和占用的 CCE编号确定传输 该 PDCCH所对应的反馈信息时所使用的上行控制信道资源, 本发明 实施例中不再详加赘述。
需要说明的是, 上述基站通过高层信令为 UE配置多个上行控制 信道资源为基站根据实际的需要任意配置的,本发明实施例中不再详 可见, 通过使用本发明提供的方法, 在长期演进多载波***, 当 使用载波聚合时, 降低了***中上行反馈信道开销, 并可以进行资源 的预留和配置。 本发明提供的方法筒单、 易于实施, 适用于 FDD和 TDD ***, 可以提高长期演进多载波升级***的***性能, 而且可 以 ^艮好的与现有的 LTE***兼容。 本发明实施例三提供一种网络侧设备, 如图 12所示, 包括: 确定模块 121 , 用于确定 UE的上行载波集合和下行载波集合中 存在小区专属配对关系的下行载波。
配置模块 122, 用于根据确定模块 121的确定结果为不存在小区 专属配对关系的下行载波配置上行控制信道资源。
具体的, 所述确定模块 121还用于, 确定所述 UE进行聚合的载 波集合, 所述载波集合包括上行载波集合和下行载波集合。
所述确定模块 121还用于, 当所述上行载波集合中包含下行载波 集合中的配对下行载波的配对上行载波时;确定所述配对下行载波为 确定结果是存在所述小区专属配对关系的下行载波;
当所述上行载波集合中不包含下行载波集合中的无配对下行载 波的配对上行载波时;确定所述无配对下行载波为确定结果是不存在 所述小区专属配对关系的下行载波。
当下行载波为无配对下行载波时,
所述配置模块 122 具体用于, 通过高层信令为所述 UE 配置 PDCCH对应的 ACK/NACK反馈信息所使用的上行控制信道资源。 其中, 所述 PDCCH包括: 动态调度下行数据传输的 PDCCH, 和 /或, 半持续调度 SPS资源释放的 PDCCH。
当所述 UE不支持跨载波调度时,
所述配置模块 122还用于, 通过高层信令为所述 PDCCH所对应 的 ACK/NACK反馈信息配置 N - M '个上行控制信道资源;
其中, N为聚合的下行载波数量, M为上行载波数量, 且 M个 上行载波与 M '个下行载波具有配对关系, M '≤N。
当所述 UE支持跨载波调度时,
所述配置模块 122还用于, 通过高层信令为 PDCCH所对应的
ACK/NACK反馈信息配置 k个上行控制信道资源;
其中, k e{0,l_,N}。
当所述 k = 0时,
所述配置模块 122还用于,确定不在无配对下行载波上传输所述 UE的 PDCCH;
当所述 k > 0时,
所述配置模块 122还用于, 确定在无配对下行载波上传输所述 UE的 PDCCH数量不多于 k个。
可见, 通过使用本发明提供的设备, 在长期演进多载波***, 当 使用载波聚合时, 降低了***中上行反馈信道开销, 并可以进行资源 的预留和配置。 本发明提供的方法筒单、 易于实施, 适用于 FDD和 TDD ***, 可以提高长期演进多载波升级***的***性能, 而且可 以 ^艮好的与现有的 LTE***兼容。
其中,本发明装置的各个模块可以集成于一体,也可以分离部署。 上述模块可以合并为一个模块, 也可以进一步拆分成多个子模块。 本发明实施例四中还提出了一种用户设备 UE,如图 13所示, 包 括:
收发模块 131 , 用于接收来自网络侧设备的配置信息, 所述配置 信息中包括所述网络侧设备为无配对下行载波配置的上行控制信道 资源。
传输模块 132, 用于使用所述上行控制信道资源传输所述无配对 下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。 其中, 所述 配置信息中还包括: 所述网络侧设备确定的聚合的载波集合信息、 无 配对下行载波信息、 配对下行载波信息;
所述 PDCCH包括: 动态调度下行数据传输的 PDCCH, 和 /或, SPS资源释放的 PDCCH。
当下行载波为配对下行载波时,
所述传输模块 132还用于,在所述配对下行载波的配对上行载波 传输所述配对下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。
当同时配置了多个上行控制信道资源时, 所述 UE还包括: 确定模块 133, 用于根据所述 PDCCH所在的载波编号和占用的 CCE编号确定传输所述 PDCCH所对应反馈信息时所使用的上行控制 信道资源。
可见, 通过使用本发明提供的设备, 在长期演进多载波***, 当 使用载波聚合时, 降低了***中上行反馈信道开销, 并可以进行资源 的预留和配置。 本发明提供的方法筒单、 易于实施, 适用于 FDD和 TDD ***, 可以提高长期演进多载波升级***的***性能, 而且可 以 ^艮好的与现有的 LTE***兼容。
其中,本发明装置的各个模块可以集成于一体,也可以分离部署。 上述模块可以合并为一个模块, 也可以进一步拆分成多个子模块。 本发明实施例还提供了一种上行控制信道资源配置***,包括网 络侧设备和 UE, 其中,
所述网络侧设备用于, 确定所述 UE的上行载波集合和下行载波 集合中存在小区专属配对关系的下行载波;并根据确定结果为不存在 小区专属配对关系的下行载波配置上行控制信道资源;
所述 UE, 用于接收来自所述网络侧设备的配置信息, 所述配置 信息中包括所述网络侧设备为无配对下行载波配置的上行控制信道 资源; 并使用所述上行控制信道资源传输所述无配对下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。
本发明实施例中, 当所述上行载波集合中包含下行载波集合中的 配对下行载波的配对上行载波时;所述配对下行载波为确定结果是存 在所述小区专属配对关系的下行载波;
当所述上行载波集合中不包含下行载波集合中的无配对下行载 波的配对上行载波时;所述无配对下行载波为确定结果是不存在所述 小区专属配对关系的下行载波。
具体的,所述网络侧设备还用于,确定 UE进行聚合的载波集合, 所述载波集合包括上行载波集合和下行载波集合。当下行载波为无配 对下行载波时,通过高层信令为 UE配置 PDCCH对应的 ACK/NACK 反馈信息所使用的上行控制信道资源。 所述 PDCCH包括: 动态调度 下行数据传输的 PDCCH, 和 /或, SPS资源释放的 PDCCH。
进一步的, 当所述 UE不支持跨载波调度时, 通过高层信令为所 述 PDCCH所对应的 ACK/NACK反馈信息配置 N- M '个上行控制信 道资源; 其中, N为聚合的下行载波数量, M为上行载波数量, 且 M 个上行载波与 M '个下行载波具有配对关系, M '≤N。
当所述 UE支持跨载波调度时, 通过高层信令为 PDCCH所对应 的 ACK/NACK 反馈信息配置 k 个上行控制信道资源; 其中, k e{0,l,..., N}。
当所述 k = 0时,所述网络侧设备确定不能在无配对下行载波上传 输所述 UE的 PDCCH;
当所述 k > 0时,所述网络侧设备确定在无配对下行载波上传输所 述 UE的 PDCCH数量不多于 k个。
所述 UE还用于, 当下行载波为配对下行载波时, 在所述配对下 行载波的配对上行载波传输所述配对下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。
当同时配置了多个上行控制信道资源时, 根据所述 PDCCH所在 的载波编号和占用的 CCE编号确定传输所述 PDCCH所对应反馈信 息时所使用的上行控制信道资源。
可见, 通过使用本发明提供的***, 在长期演进多载波***, 当 使用载波聚合时, 降低了***中上行反馈信道开销, 并可以进行资源 的预留和配置。 本发明提供的方法筒单、 易于实施, 适用于 FDD和 TDD ***, 可以提高长期演进多载波升级***的***性能, 而且可 以 ^艮好的与现有的 LTE***兼容。 通过以上的实施方式的描述,本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现, 当然也可 以通过硬件,但很多情况下前者是更佳的实施方式。基于这样的理解, 软件产品的形式体现出来, 该计算机软件产品存储在一个存储介质 中, 包括若干指令用以使得一台计算机设备(可以是个人计算机, 服 务器, 或者网络设备等)执行本发明各个实施例所述的方法。
本领域技术人员可以理解附图只是一个优选实施例的示意图,附 图中的模块或流程并不一定是实施本发明所必须的。
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中,也可以进行相应变化位于不同 于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个 模块, 也可以进一步拆分成多个子模块。
上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。 以上公开的仅为本发明的几个具体实施例, 但是, 本发明并非局 限于此,任何本领域的技术人员能思之的变化都应落入本发明的保护 范围。

Claims

权利要求
1、 一种上行控制信道资源配置方法, 其特征在于, 包括: 网络侧设备确定用户设备 UE的上行载波集合和下行载波集合中 存在小区专属配对关系的下行载波;
所述网络侧设备根据确定结果为不存在小区专属配对关系的下 行载波配置上行控制信道资源。
2、 如权利要求 1所述的方法, 其特征在于, 所述网络侧设备确 定 UE的上行载波集合和下行载波集合中存在小区专属配对关系的下 行载波之前, 还包括:
所述网络侧设备确定所述 UE进行聚合的载波集合, 所述载波集 合包括上行载波集合和下行载波集合。
3、 如权利要求 1所述的方法, 其特征在于, 还包括:
当所述上行载波集合中包含下行载波集合中的配对下行载波的 配对上行载波时;所述配对下行载波为确定结果是存在所述小区专属 配对关系的下行载波;
当所述上行载波集合中不包含下行载波集合中的无配对下行载 波的配对上行载波时;所述无配对下行载波为确定结果是不存在所述 小区专属配对关系的下行载波。
4、 如权利要求 1或 3所述的方法, 其特征在于, 当下行载波为 无配对下行载波时,所述网络侧设备根据确定结果为不存在小区专属 配对关系的下行载波配置上行控制信道资源包括:
所述网络侧设备通过高层信令为所述 UE配置物理下行控制信道 PDCCH对应的 ACK/NACK反馈信息所使用的上行控制信道资源。
5、 如权利要求 4所述的方法, 其特征在于, 所述 PDCCH包括: 动态调度下行数据传输的 PDCCH, 和 /或, 半持续调度 SPS资源释放 的 PDCCH。
6、 如权利要求 4所述的方法, 其特征在于, 当所述 UE不支持 跨载波调度时,所述网络侧设备通过高层信令为所述 UE配置 PDCCH 对应的 ACK/NACK反馈信息所使用的上行控制信道资源包括: 所述网络侧设备通过高层信令为所述 PDCCH 对应的 ACK/NACK反馈信息配置 N- M '个上行控制信道资源; 其中, N为 聚合的下行载波数量, M为上行载波数量, 且 M个上行载波与 M'个 下行载波具有配对关系, M '≤N。
7、 如权利要求 4所述的方法, 其特征在于, 当所述 UE支持跨 载波调度时, 所述网络侧设备通过高层信令为所述 UE配置 PDCCH 对应的 ACK/NACK反馈信息所使用的上行控制信道资源包括:
所述网络侧设备通过高层信令为 PDCCH所对应的 ACK/NACK 反馈信息配置 k个上行控制信道资源; 其中, k e {0,l_,N}。
8、 如权利要求 7所述的方法, 其特征在于, 还包括:
当所述 k = 0时,所述网络侧设备确定不在无配对下行载波上传输 所述 UE的 PDCCH;
当所述 k > 0时,所述网络侧设备确定在无配对下行载波上传输所 述 UE的 PDCCH数量不多于 k个。
9、 一种网络侧设备, 其特征在于, 包括:
确定模块, 用于确定 UE的上行载波集合和下行载波集合中存在 小区专属配对关系的下行载波;
配置模块,用于根据确定模块的确定结果为不存在小区专属配对 关系的下行载波配置上行控制信道资源。
10、 如权利要求 9所述的网络侧设备, 其特征在于,
所述确定模块还用于, 确定所述 UE进行聚合的载波集合, 所述 载波集合包括上行载波集合和下行载波集合。
11、 如权利要求 9所述的网络侧设备, 其特征在于,
所述确定模块还用于, 当所述上行载波集合中包含下行载波集合 中的配对下行载波的配对上行载波时;确定所述配对下行载波为确定 结果是存在所述小区专属配对关系的下行载波;
当所述上行载波集合中不包含下行载波集合中的无配对下行载 波的配对上行载波时;确定所述无配对下行载波为确定结果是不存在 所述小区专属配对关系的下行载波。
12、 如权利要求 9或 11所述的网络侧设备, 其特征在于, 当下 行载波为无配对下行载波时,
所述配置模块具体用于, 通过高层信令为所述 UE配置 PDCCH 对应的 ACK/NACK反馈信息所使用的上行控制信道资源。
13、 如权利要求 12所述的网络侧设备, 其特征在于, 当所述 UE 不支持跨载波调度时,
所述配置模块还用于, 通过高层信令为所述 PDCCH 所对应的 ACK/NACK反馈信息配置 N -M '个上行控制信道资源;
其中, N为聚合的下行载波数量, M为上行载波数量, 且 M个 上行载波与 M '个下行载波具有配对关系, M '≤N。
14 、 如权利要求 12 所述的网络侧设备, 其特征在于, 当所述 UE支持跨载波调度时,
所述配置模块还用于, 通过高层信令为 PDCCH 所对应的
ACK/NACK反馈信息配置 k个上行控制信道资源;
其中, k e{0,l_,N}。
15、 如权利要求 14所述的网络侧设备, 其特征在于,
当所述 k = 0时, 所述配置模块还用于, 确定不在无配对下行载波 上传输所述 UE的 PDCCH;
当所述 k > 0时, 所述配置模块还用于, 确定在无配对下行载波上 传输所述 UE的 PDCCH数量不多于 k个。
16、 一种上行控制信道资源配置方法, 其特征在于, 包括:
UE接收来自网络侧设备的配置信息, 所述配置信息中包括所述 网络侧设备为无配对下行载波配置的上行控制信道资源;
所述 UE使用所述上行控制信道资源传输所述无配对下行载波上 的 PDCCH对应的 ACK/NACK反馈信息。
17、 如权利要求 16所述的方法, 其特征在于, 所述配置信息中 还包括: 所述网络侧设备确定的聚合的载波集合信息、 无配对下行载 波信息、 配对下行载波信息;
所述 PDCCH包括: 动态调度下行数据传输的 PDCCH, 和 /或, 半持续调度 SPS资源释放的 PDCCH。
18、 如权利要求 17所述的方法, 其特征在于, 当下行载波为配 对下行载波时, 所述方法还包括:
所述 UE在所述配对下行载波的配对上行载波传输所述配对下行 载波上的 PDCCH对应的 ACK/NACK反馈信息。
19、 如权利要求 16-18任一项所述的方法, 其特征在于, 当同时 配置了多个上行控制信道资源时, 所述方法还包括:
所述 UE根据所述 PDCCH所在的载波编号和占用的 CCE编号确 定传输所述 PDCCH所对应反馈信息时所使用的上行控制信道资源。
20、 一种用户设备 UE, 其特征在于, 包括:
收发模块, 用于接收来自网络侧设备的配置信息, 所述配置信息 中包括所述网络侧设备为无配对下行载波配置的上行控制信道资源; 传输模块,用于使用所述上行控制信道资源传输所述无配对下行 载波上的 PDCCH对应的 ACK/NACK反馈信息。
21、 如权利要求 20所述的 UE, 其特征在于, 当下行载波为配对 下行载波时,
所述传输模块还用于,在所述配对下行载波的配对上行载波传输 所述配对下行载波上的 PDCCH所对应的 ACK/NACK反馈信息。
22、 如权利要求 20或 21所述的 UE, 其特征在于, 当同时配置 了多个上行控制信道资源时, 还包括:
确定模块,用于根据所述 PDCCH所在的载波编号和占用的 CCE 编号确定传输所述 PDCCH所对应反馈信息时所使用的上行控制信道 资源。
23、 一种上行控制信道资源配置***, 其特征在于, 包括网络侧 设备和 UE, 其中,
所述网络侧设备用于, 确定所述 UE的上行载波集合和下行载波 集合中存在小区专属配对关系的下行载波;并根据确定结果为不存在 小区专属配对关系的下行载波配置上行控制信道资源;
所述 UE, 用于接收来自所述网络侧设备的配置信息, 所述配置 信息中包括所述网络侧设备为无配对下行载波配置的上行控制信道 资源; 并使用所述上行控制信道资源传输所述无配对下行载波上的 PDCCH对应的 ACK/NACK反馈信息。
PCT/CN2010/077429 2009-10-16 2010-09-28 一种上行控制信道资源配置方法、设备和*** WO2011044820A1 (zh)

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