WO2013023550A1 - 应答信息的发送、接收方法和设备 - Google Patents

应答信息的发送、接收方法和设备 Download PDF

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Publication number
WO2013023550A1
WO2013023550A1 PCT/CN2012/079904 CN2012079904W WO2013023550A1 WO 2013023550 A1 WO2013023550 A1 WO 2013023550A1 CN 2012079904 W CN2012079904 W CN 2012079904W WO 2013023550 A1 WO2013023550 A1 WO 2013023550A1
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WIPO (PCT)
Prior art keywords
subframe
phich resource
user equipment
information
response
Prior art date
Application number
PCT/CN2012/079904
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English (en)
French (fr)
Inventor
陈小波
官磊
Original Assignee
华为技术有限公司
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 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP12824543.8A priority Critical patent/EP2728780B1/en
Publication of WO2013023550A1 publication Critical patent/WO2013023550A1/zh
Priority to US14/177,515 priority patent/US9407415B2/en

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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
    • H04L5/0053Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055Physical resource allocation for ACK/NACK
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/1607Details of the supervisory signal
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1812Hybrid protocols; Hybrid automatic repeat request [HARQ]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1854Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1861Physical mapping arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements 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
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1864ARQ related signaling
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling
    • H04W72/1263Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows

Definitions

  • the present invention claims the priority of a Chinese patent application filed on August 15, 2011 by the Chinese Patent Office, the application number is 201110232590.7, and the invention name is "reception, reception method and equipment for response information". The entire contents of which are incorporated herein by reference.
  • the present invention relates to the field of communications technologies, and in particular, to a method and a device for transmitting and receiving response information.
  • TDD Time Division Duplex
  • LTE Long Term Evolution
  • one radio frame supports multiple different uplink-downlink subframe ratios, for each seed frame ratio, LTE
  • the TDD system also defines a delay time k PHICH when the network side device feeds back the response information to the user equipment (UE) relative to the user equipment to send the data time, that is, defines the uplink data transmission to the downlink response information feedback. Timing relationship.
  • the existing LTE TDD system supports carrier aggregation (Carrier Aggregation) technology.
  • a user equipment can access one or more component carriers at the same time to perform data communication with the network side device.
  • one component carrier is also called a serving cell. (Serving Cell).
  • the data transmission of the serving cell A may be scheduled by the scheduling command sent by the serving cell A, that is, the same carrier scheduling, or may be through other serving cells, for example, the serving cell B.
  • the dispatched command is sent to schedule, that is, to perform cross-carrier scheduling.
  • the network side device needs to feed back the response information of the scheduled serving cell uplink data to the user equipment in the serving cell that sends the scheduling command.
  • the network side device occupies a control channel element in the response subframe (Control Channel Element;
  • the CCE is configured to reserve a physical layer hybrid automatic retransmission request indication channel (PHICH) resource for each cross-carrier scheduled serving cell, and send the uplink data response information on the reserved PHICH resource.
  • PHICH physical layer hybrid automatic retransmission request indication channel
  • the user equipment is simultaneously connected to multiple serving cells with different subframe ratios, and a new subframe matching setting may be introduced for new functions, for example, a partial subframe is set as a flexible sub-frame. frame.
  • the embodiment of the invention provides a method and a device for sending and receiving response information, so as to reduce system PHICH resource overhead and ensure data transmission of the user equipment.
  • the embodiment of the invention provides a method for sending response information, including:
  • the network side device sends the first subframe matching information and the second subframe matching information to the user equipment, where the first subframe matching information and the second subframe matching information represent the subframe matching Different than
  • the physical layer hybrid automatic repeat request indicates a channel PHICH resource set
  • the network side device Determining, by the network side device, the second response subframe set according to the second timing relationship set for the second subframe matching information, where the first PHICH resource set does not exist in the second response subframe set Retaining a second PHICH resource set in the response subframe;
  • the network side device Determining, by the network side device, the response subframe of the uplink data according to the second timing relationship and a subframe that receives the uplink data; If the first PHICH resource set exists in the response subframe, the network side device sends the response information to the user equipment by using the PHICH resource in the first PHICH resource set, if the response subframe does not exist. The first PHICH resource set, the network side device sends the response information to the user equipment by using the PHICH resource in the second PHICH resource set.
  • the embodiment of the invention further provides a method for receiving response information, including:
  • the user equipment receives the first subframe matching information and the second subframe matching information that are sent by the network side device, where the first subframe matching information and the subframe represented by the second subframe matching information Different ratios;
  • the user equipment receives the network side device sending by using the PHICH resource in the first PHICH resource set.
  • the response information if the response subframe is a subframe in which the first PHICH resource set does not exist, the user equipment receives the response information sent by the network side device by using the PHICH resource in the reserved second PHICH resource set.
  • the subframe in which the first PHICH resource set exists is determined by the user equipment according to a first timing relationship set for the first subframe ratio.
  • the embodiment of the invention further provides a network side device, including:
  • a transmitter configured to send the first subframe matching information and the second subframe matching information to the user equipment, where the first subframe matching information and the second subframe matching information represent a child
  • the frame ratio is different
  • a processor configured to determine, according to a first timing relationship set by the first subframe ratio information sent by the transmitter, a first response subframe set, and a response component in the first response subframe set Retaining a first physical layer hybrid automatic repeat request indication channel PHICH resource set in the frame; Determining, according to a second timing relationship set by the second subframe matching information sent by the sender, a second response subframe set, where the first PHICH resource does not exist in the second response subframe set Retaining a second PHICH resource set in the response subframe of the set;
  • a receiver configured to receive uplink data that is sent by the user equipment according to the second subframe ratio information sent by the sender
  • the processor is further configured to: determine, according to the second timing relationship and the subframe of the uplink data received by the receiver, a response subframe of the uplink data received by the receiver;
  • the device is further configured to: if the first PHICH resource set exists in the response subframe determined by the processor, use the PHICH resource in the first PHICH resource set reserved by the processor to the user equipment Sending a response message, if the first PHICH resource set does not exist in the response subframe determined by the processor, using the PHICH resource in the second PHICH resource set reserved by the processor to The user equipment sends a response message.
  • the embodiment of the invention further provides a user equipment, including:
  • a receiver configured to receive first subframe matching information and second subframe matching information that are sent by the network side device, where the first subframe matching information and the second subframe matching information are represented by The subframe ratio is different;
  • a transmitter configured to send uplink data to the network side device according to the second subframe matching information received by the receiver
  • a processor configured to determine a response subframe of the uplink data according to a second timing relationship set for the second subframe ratio information received by the receiver and a subframe for sending the uplink data;
  • the receiver is further configured to: if the response subframe determined by the processor is a subframe in which a first physical layer hybrid automatic repeat request indication channel PHICH resource set exists, use the first PHICH resource set
  • the PHICH resource receives the response information sent by the network side device, and if the response subframe determined by the processor is a subframe in which the first PHICH resource set does not exist, the reserved second PHICH resource set is used.
  • PHICH resource receiving the network side device The received response information; wherein the subframe in which the first PHICH resource set exists is determined by the processor according to a first timing relationship set for the first subframe ratio.
  • the method and device for transmitting and receiving response information provided by the embodiment of the present invention, when the network side device allocates different subframes to the user equipment, if there is an existing PHICH resource set on the response subframe, the network side device is present.
  • the PHICH resource set sends the response information to the user equipment. If the response subframe does not have the existing PHICH resource set, the response information is sent to the user equipment on the reserved PHICH resource set.
  • the embodiment of the present invention can effectively reduce the system PHICH resource overhead and ensure the data transmission of the user equipment. .
  • FIG. 1 is a flowchart of an embodiment of a method for transmitting response information provided by the present invention
  • FIG. 2 is a flowchart of an embodiment of a method for receiving response information according to the present invention
  • FIG. 3 is a schematic diagram of cross-carrier scheduling provided by the present invention.
  • FIG. 4 is a schematic diagram of a response subframe in an embodiment of a flexible subframe configured by a network side device for a user equipment according to the present invention;
  • FIG. 5 is a schematic diagram of a response subframe in another embodiment in which a network side device provides a flexible subframe for a user equipment according to the present invention
  • FIG. 6 is a schematic structural diagram of an embodiment of a network side device for performing the foregoing method for transmitting response information according to the present invention
  • FIG. 7 is a schematic structural diagram of an embodiment of a user equipment for performing the foregoing method for receiving response information according to 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 those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of an embodiment of a method for sending response information according to the present invention. As shown in FIG. 1, the method includes:
  • the network side device sends the first subframe ratio information and the second subframe ratio information to the user equipment, where the subframe ratio represented by the first subframe ratio information and the second subframe ratio information is different. ;
  • the network side device determines, according to the first timing relationship set for the first subframe matching information, the first response subframe set, and reserves the first physical layer hybrid automatic in the response subframe of the first response subframe set.
  • the retransmission request indicates a channel PHICH resource set;
  • the network side device determines, according to the second timing relationship set for the second subframe matching information, the second response subframe set, where the response subframe of the first PHICH resource set does not exist in the second response subframe set. Leaving a second PHICH resource set;
  • the network side device receives uplink data that is sent by the user equipment according to the second subframe ratio information.
  • the network side device determines, according to the second timing relationship and the subframe that receives the uplink data, the response subframe of the uplink data.
  • the network side device sends the response information to the user equipment by using the PHICH resource in the first PHICH resource set. If the first PHICH resource set does not exist in the response subframe, the network The side device sends the response information to the user equipment by using the PH ICH resource in the second PHICH resource set.
  • the execution subject network side device of the above steps may specifically be various types of base stations, relay stations, transceiver nodes that communicate with the UE, and the like.
  • the first subframe matching information sent by the network side device to the user equipment is different from the subframe ratio indicated by the second subframe matching information, and the network side device may send the information to the user equipment in different application scenarios.
  • the first subframe matching information and the second subframe matching information are different from the subframe ratio indicated by the second subframe matching information, and the network side device may send the information to the user equipment in different application scenarios.
  • the embodiment of the present invention may be applied to a carrier aggregation scenario.
  • a carrier aggregation scenario one user equipment accesses multiple serving cells simultaneously to perform data communication with the network side device, where each serving cell may have different subframe ratios.
  • Table 1 the seven uplink and downlink subframe ratios supported by the LTE TDD system are shown in Table 1:
  • the D indicates a downlink subframe
  • U indicates an uplink subframe
  • S indicates a special subframe.
  • the special subframe S can be used by the network side device to send downlink data packets to the user equipment, and is not used for the user equipment to send uplink data to the network side device. Packets are therefore usually treated as downlink subframes.
  • Table 1 provides the subframe ratios supported by several LTE TDD systems. However, it can be understood that the LTE TDD system can support other subframes in addition to the subframe ratio 0 to subframe ratio 6 provided in Table 1. The ratio is not limited to the present invention by Table 1.
  • the network side device may configure which serving cell the user equipment receives to receive the scheduling command.
  • the network side device may configure which serving cell the user equipment receives the scheduling command according to the requirement, or configure which serving cell the user equipment receives the scheduling command according to the specific data transmission condition. For example: For the uplink data transmission of the serving cell A, when the network side device is sent in the serving cell A When the dispatching command is subjected to strong interference and the user equipment receiving performance is poor, and the network side device does not have strong interference when the serving cell B sends a scheduling command, the network side device may send a scheduling command to the user equipment on the serving cell B, and configure the user.
  • the device receives the scheduling command of the uplink data transmission sent by the network side device on the serving cell A on the serving cell B.
  • the serving cell that the network side device configures the scheduling command for different user equipments may be the same or different.
  • the network side device can configure the user equipment 1, the user equipment 2, the user equipment 3, and the user equipment 4 to receive on the service small A, the serving cell B, the serving cell C, and the serving cell B, respectively.
  • a scheduling command for upstream data may be the same or different.
  • the first subframe matching information and the second subframe matching information may respectively correspond to different serving cells accessed by the user equipment.
  • the first subframe matching information may be corresponding to the first serving cell that is accessed by the user equipment
  • the second subframe matching information may be corresponding to the second serving cell that the user equipment accesses.
  • the scheduling command of the uplink data transmission of the second serving cell may be transmitted in the first serving cell, that is, the first serving cell is the scheduling cell of the second serving cell.
  • the first subframe matching information may be carried in the first serving cell system message, and the first subframe matching information may be any one of the subframe ratio 0 to the subframe ratio 6 shown in Table 1.
  • the second subframe matching information may be carried in the second serving cell system message, and the second subframe matching information may be the subframe matching 0 to subframe configuration shown in Table 1. Any one other than the first subframe matching information in 6.
  • the network side device may send system messages of all serving cells on its primary serving cell. Specifically, the network side device may send system messages of the primary serving cell by using broadcast information sent on the primary serving cell.
  • the system message of the secondary serving cell may be transmitted through dedicated Radio Resource Control (RRC) signaling sent by the primary serving cell.
  • RRC Radio Resource Control
  • the first serving cell is the primary serving cell of the user equipment
  • the first The subframe matching information is sent by the network side device in the first serving cell by using the broadcast information
  • the second subframe matching information is sent by the network side device in the first serving cell by using the dedicated RRC signaling.
  • the second subframe matching information may also be newly defined subframe matching information in an evolved version of the LTE TDD system.
  • the network side device may further configure a partial subframe of a serving cell that the user equipment accesses as a flexible subframe, and the flexible subframe may be used by the network side device to transmit uplink in real time according to the service traffic demand of the user equipment. Data or downlink data. Therefore, the second subframe matching information may include flexible subframe information configured by the network side device for the user equipment.
  • a typical flexible subframe information configured by the network side device for the user equipment may be: ⁇ D, S, U, F, F, D, S, U, F, F ⁇ . Where F indicates a flexible subframe.
  • the flexible subframe F can be used for the network side device to send the downlink data packet to the user equipment, and can also be used for the user equipment to send the uplink data packet to the network side device. It can be understood that the flexible subframe information can also be other forms supported in the LTE TDD system, and is not enumerated here.
  • the second subframe matching information may be sent by the network side device through proprietary RRC signaling or Medium Access Control (MAC) signaling or the like.
  • the user equipment may determine, according to the first subframe matching information, a subframe that can be used to send uplink data on the first serving cell. And determining, according to the second subframe ratio information, a subframe that can be used to send uplink data on the second serving cell.
  • the second subframe matching information includes the flexible subframe information
  • the subframe that is determined by the user equipment and can be used to send the uplink data on the second serving cell may be a fixed uplink subframe or a flexible subframe, and further, In the determined subframe that can be used to send uplink data on the second serving cell, the user equipment can send uplink data to the network side device on the scheduled subframe.
  • the network side device After receiving the uplink data sent by the user equipment on the second serving cell, the network side device sends the response information of the uplink data to the user equipment on the first serving cell.
  • the first serving cell and the second serving cell have different subframe ratios, and the scheduling command of the uplink data transmission of the second serving cell is transmitted in the first serving cell, that is, the first serving cell may be spanned.
  • the wave schedules uplink data transmission of the second serving cell with different subframe ratios.
  • the network side equipment can be used for uplink data transmission of each serving cell.
  • the embodiment of the present invention provides a response information sending method to feed back response information of uplink data to a user equipment.
  • the network side device may set the ratio according to the first subframe.
  • the first timing relationship and the subframe in which the uplink data is received are used to determine a subframe for transmitting the response information, and the subframe for transmitting the response information is the subframe in which the first PHICH resource set is involved in the embodiment of the present invention.
  • the first timing relationship may be expressed in a tabular form, and the table may be stored in advance on the network side device side and the user equipment side.
  • the first timing relationship identifies the time when the network side device feedbacks the response information relative to the delay time of the user equipment to send the uplink data. , the delay time can be expressed in the number of subframes.
  • Table 2 A first timing relationship is given below, as shown in Table 2:
  • each downlink subframe can feed back response information corresponding to the uplink data of the mi subframes, as shown in Table 3 below:
  • the first PHICH resource set does not exist on the subframe.
  • Table 2 only shows the delay time of the network side device feedback response information supported by the LTE TDD system relative to the delay time of the user equipment to send the uplink data. It can be understood that the LTE TDD system can also support other network side device feedback responses.
  • the time of the information is relative to the delay time for the user equipment to send the uplink data, that is, the first timing relationship may also be other than Table 2, and the second embodiment is not limited to the present invention.
  • the network side device may determine according to the second timing relationship set for the second subframe ratio and the subframe for receiving the uplink data.
  • the second timing relationship may be expressed in a form of a table, and the table may also be stored in advance on the network side device side and the user equipment side.
  • the first timing relationship and the second timing relationship involved in the present invention may be the same.
  • the timing representation shown in Table 2 may be used.
  • the first timing relationship and the second timing relationship may also be different.
  • the uplink data sent by the user equipment on the second serving cell according to the second subframe ratio information, the second timing relationship set for the second subframe ratio, and the subframe in which the network side device receives the uplink data the network The side device can first determine the response subframe in which the response information is sent.
  • the acknowledgement subframe determined here may be a subframe in which the first PHICH resource set exists, or may not be There is a first PHICH resource set subframe.
  • the network side device may send the PHICH resource on the first PHICH resource set reserved in the subframe of the first serving cell to the user equipment. Response information corresponding to the uplink data transmission of the second serving cell.
  • the network side device may send the PHICH resource on the second PHICH resource set reserved in the subframe of the first serving cell to the user equipment. Response information corresponding to the uplink data of the second serving cell.
  • the network side device may communicate with multiple user equipments at the same time, the operation of the PHICH resource reservation by the network side device is usually not for an uplink data transmission of a certain terminal. Therefore, the network side device may reserve in advance. The operation of the first PHICH resource set and the second PHICH resource set.
  • the network side device may determine the first response subframe set according to the first timing relationship determined for the first subframe matching information, and reserve the first PHICH in the response subframe of the first response subframe set. Resource collection.
  • the first response subframe set includes all possible response subframes corresponding to the uplink data sent by the user equipment according to the first subframe ratio information, and all the response subframes in the first response subframe set have the first A PHICH resource set, therefore, for the response subframe in the first response subframe set, the network side device does not have to perform the operation of reserving the second PHICH resource.
  • the network side device may further determine the second response subframe set according to the second timing relationship determined for the second subframe matching information, and reserve the second PHICH in the response subframe of the second response subframe set. Resource collection.
  • the second acknowledgment subframe set includes all possible acknowledgment subframes corresponding to the uplink data sent by the user equipment according to the second subframe ratio information, and the partial acknowledgment subframe may exist in the second acknowledgment subframe set.
  • a PHICH resource set may also have a partial PHICH resource set in a partial response subframe. Therefore, the network side device may reserve a second on the subframe in which the first PHICH resource set does not exist in the second response subframe set. PHICH resource collection.
  • the first PHICH resource set may exist in the partial response subframe, and the first PHICH resource set may not exist in the partial response subframe. It can be seen that the second response subframe set and the first response are There may be an intersection of the subframe set, that is, the same response subframe may exist in the second response subframe set and the first response subframe set.
  • the network side device determines the response subframe of the uplink data according to the second timing relationship and the subframe in which the uplink data is received. Therefore, it can be seen that the response subframe determined by the network side device in the operation exists in the second response subframe set.
  • the network side device determines the first response subframe set, and reserves the first PHICH resource set on the response subframe in the first response subframe set, and the network side device determines the second response subframe. Collecting, and reserving the second PHICH resource set on the response subframe in the second response subframe set, and transmitting, by the network side device, the first subframe matching information and the second subframe matching information to the user equipment
  • the execution of S101 and S102 and S103 is in no particular order.
  • the execution of S102 and S103 is also in no particular order.
  • the network side device may reserve a second on the control channel unit CCE resource and/or the physical downlink shared channel resource of the response subframe for the response subframe in which the first PHICH resource set does not exist in the second response subframe set.
  • PHICH resource collection may further include, in addition to the PCFICH, an Orthogonal Frequency Division Multiplexing (OFDM) symbol indicated by a Physical Layer Control Format Indicator Channel (PCFICH) of the response subframe.
  • OFDM Orthogonal Frequency Division Multiplexing
  • PCFICH Physical Layer Control Format Indicator Channel
  • a second PHICH resource set is reserved on a resource element group (REG) resource other than the PHICH and the PDCCH.
  • REG resource element group
  • the foregoing describes the case where the first subframe matching information and the second subframe matching information correspond to different serving cells accessed by the user equipment.
  • the first sub-sub-invention in the embodiment of the present invention is described.
  • the frame matching information and the second subframe matching information may also correspond to the same serving cell accessed by the user equipment. It should be noted that, in this case, the number of serving cells accessed by the user equipment may be greater than one, or may be equal to one.
  • the LTE TDD system is an evolving wireless communication system. The standardization of the Release 3, Release 9 and Release 10 of the 3GPP LTE TDD system has been discussed.
  • the user equipment passes the receiving network.
  • a version 8 user equipment can access a version 11 network side device and perform normal communication with the network side device, and a version 11 user device can also access.
  • a version 8 network side device communicates normally with the network side device.
  • the network side device may notify the same user equipment of two subframe matching information, that is, the first subframe matching information and the second subframe matching information, for the same serving cell.
  • the first subframe ratio may be delivered by the system for backward compatibility with earlier versions of the user equipment, and the second subframe ratio may be delivered for the evolved version of the user equipment using more advanced functions.
  • the first subframe matching information may be delivered by the network side device by using a broadcast system message.
  • the first subframe matching information and the second subframe matching information may not include flexible subframe information.
  • the first subframe matching information may be any seed frame ratio shown in Table 1.
  • the second subframe may be any seed except the first subframe matching information shown in Table 1.
  • the frame ratio may be; or, the second subframe matching information may be other subframe matching information newly defined for the evolved version.
  • the network side device may further set a partial subframe of one serving cell that the user equipment accesses as a flexible subframe, where the flexible subframe may be required by the network side device according to the user equipment service traffic requirement. Real-time and flexible for transmitting uplink data or downlink data.
  • the first subframe matching information may not include flexible subframe information
  • the second subframe matching information may include flexible subframe information configured by the network side device for the user equipment.
  • a typical flexible subframe information configured by the network side device for the user equipment is: ⁇ D, S, U, F, F, D, S, U, F, F ⁇ . Where F denotes a flexible subframe.
  • the flexible subframe F can be used for the network side device to send the downlink data packet to the user equipment, and can also be used for the user equipment to send the uplink data packet to the network side device.
  • the second subframe matching information may be sent by the network side device to the user equipment by using the broadcast system information, or may be by any other means, for example, the network side device may use proprietary RRC signaling, MAC signaling, or physical layer signaling. Orders are sent to the user device.
  • the network side device may determine a subframe for sending the response information according to the first timing relationship set for the first subframe ratio and the subframe for receiving the uplink data, where the determined subframe is the embodiment of the present invention.
  • the serving cell may also serve an earlier version of the user equipment, such as the user equipment of the LTE TDD version 8 .
  • the network side device sends the first subframe matching information to the user equipment, and the first purpose of setting the first timing relationship and reserving the first PHICH resource set is to enable the early version of the user equipment to access the serving cell. Communication.
  • the evolved version of the user equipment may also receive the response information on the subframe in which the first PHICH resource set exists.
  • the network side device may determine the response subframe for transmitting the response information according to the second timing relationship set for the second subframe ratio and the subframe for receiving the uplink data.
  • the acknowledgement subframe determined here may be a subframe in which the first PHICH resource set exists, or may be a first PHICH resource set subframe.
  • the network side device for the uplink data sent by the user equipment on the uplink subframe U and/or the flexible subframe F, the network side device according to the second subframe ratio The response timing subframe of the transmission response information determined by the set second timing relationship.
  • the response subframe may be a subframe in which the first PHICH resource set exists, or may be a subframe in which the first PHICH resource set does not exist. If the network side device has the first PHICH resource set according to the second subframe relationship set for the second subframe ratio, the network side device may use the reserved first PHICH resource set in the subframe. The PHICH resource sends corresponding response information. If the network side device does not have the first PHICH resource set according to the second subframe relationship set for the second subframe ratio, the network side device may be configured on the second PHICH resource set reserved in the subframe. The PHICH resource sends a corresponding response message.
  • the first timing relationship and the second timing relationship may be expressed in a form of a table, and the table may be stored in advance on the network side device side and the user equipment side.
  • the first timing relationship and the second timing relationship may be the same.
  • the first timing relationship and the second timing relationship may be different.
  • the embodiment of the present invention when the user equipment receives the different subframe ratios sent by the network side device, if there is an existing PHICH resource set on the response subframe, the network side device is in the existing PHICH.
  • the response information is sent to the user equipment on the resource set; if the existing PHICH resource set does not exist in the response subframe, the response information is sent to the user equipment on the reserved PHICH resource set.
  • the embodiment can effectively reduce the PHICH resource overhead of the system and ensure the data transmission of the user equipment. .
  • FIG. 2 is a flowchart of an embodiment of a method for receiving response information according to the present invention. As shown in FIG. 2, the method includes:
  • the user equipment receives the first subframe ratio information and the second subframe ratio information that are sent by the network side device, where the first subframe ratio information and the second subframe ratio information represent a subframe ratio.
  • the user equipment sends uplink data to the network side device according to the second subframe matching information.
  • the user equipment determines the response subframe of the uplink data according to the second timing relationship set for the second subframe ratio information and the subframe for sending the uplink data.
  • the user equipment uses the PHICH resource in the first PHICH resource set to receive the response information sent by the network side device, if the response If the subframe is a subframe in which the first PHICH resource set does not exist, the user equipment utilizes the PH ICH resource in the reserved second PH ICH resource set.
  • the source receives the response information sent by the network side device, where the subframe in which the first PHICH resource set exists is determined by the user equipment according to the first timing relationship set for the first subframe ratio.
  • the execution subject of the above steps is the user equipment UE.
  • the first subframe ratio information sent by the network side device received by the user equipment is different from the subframe ratio indicated by the second subframe ratio information.
  • the user equipment may receive the first subframe matching information and the second subframe matching information sent by the network side device in different application scenarios.
  • the embodiment of the present invention can be applied to a carrier aggregation scenario.
  • a user equipment accesses one or more component carriers to perform data communication with a network side device.
  • Each component carrier is referred to as a serving cell. If the user equipment accesses multiple serving cells, the multiple serving cells that are accessed may have different subframe ratios.
  • the network side device may configure which serving cell the user equipment receives to receive the scheduling command.
  • the network side device may configure which serving cell the user equipment receives the scheduling command according to the requirement, or configure which serving cell the user equipment receives the scheduling command according to the specific data transmission condition.
  • the first subframe matching information and the second subframe matching information may respectively correspond to different serving cells accessed by the user equipment.
  • the first subframe matching information may be corresponding to the first serving cell that is accessed by the user equipment
  • the second subframe matching information may be corresponding to the second serving cell that the user equipment accesses.
  • the scheduling command of the uplink data transmission of the second serving cell may be transmitted in the first serving cell, that is, the first serving cell is the scheduling cell of the second serving cell.
  • the first subframe matching information may be carried in the first serving cell system message, and the first subframe matching information may be any one of the subframe ratio 0 to the subframe ratio 6 shown in Table 1.
  • the network side device may send the second subframe matching information to be sent in the second serving cell system message, and the second subframe matching information may be the subframe ratio shown in Table 1. 0 to any of the sub-frame ratios 6 except for the first subframe ratio information.
  • the network side device may send system messages of all serving cells on its primary serving cell. Specifically, the network side device may send system messages of the primary serving cell by using broadcast information sent on the primary serving cell. Can be sent exclusively through the primary serving cell
  • the RRC signaling is used to send a system message of the secondary serving cell.
  • the first serving cell is the primary serving cell of the user equipment
  • the first subframe matching information is sent by the network side device in the first serving cell by using broadcast information
  • the second subframe matching information is the network side device.
  • the first serving cell is sent by proprietary RRC signaling.
  • the second subframe matching information may also be newly defined subframe matching information in an evolved version of the LTE TDD system.
  • the network side device may further configure a partial subframe of a serving cell that the user equipment accesses as a flexible subframe, and the flexible subframe may be used by the network side device to transmit uplink in real time according to the service traffic demand of the user equipment. Data or downlink data. Therefore, the second subframe matching information may be flexible subframe information configured by the network side device for the user equipment. It can be understood that the flexible subframe information can also be other forms supported in the LTE TDD system, not enumerated here.
  • the second subframe matching information may be transmitted by the network side device through proprietary RRC signaling or MAC signaling or the like.
  • the user equipment may determine, according to the first subframe matching information, a subframe that can be used to send uplink data on the first serving cell. And determining, according to the second subframe ratio information, a subframe that can be used to send uplink data on the second serving cell.
  • the second subframe matching information includes the flexible subframe information
  • the subframe that is determined by the user equipment and can be used to send the uplink data on the second serving cell may be a fixed uplink subframe or a flexible subframe, and further, In the determined subframe that can be used to send uplink data on the second serving cell, the user equipment can send uplink data to the network side device on the scheduled subframe.
  • the user equipment sends the uplink data to the network side device on the second serving cell, and the user equipment receives the response information of the uplink data sent by the network side device on the first serving cell.
  • the first serving cell and the second serving cell have different subframe ratios,
  • the user equipment receives, on the first serving cell, a scheduling command for uplink data transmission of the second serving cell sent by the network side device, that is, the first serving cell may schedule uplink data of the second serving cell with different subframe ratios across carriers. transmission.
  • the user equipment may be the first sub
  • the first timing relationship set by the frame ratio and the subframe for transmitting the uplink data on the first serving cell determine a subframe for receiving the uplink data response information.
  • the determined subframe is a subframe in which the first PHICH resource set is involved in the embodiment of the present invention.
  • the first timing relationship may be expressed in a tabular form, and the table may be stored in advance on the network side device side and the user equipment side.
  • the first timing relationship may be as shown in Table 2.
  • each downlink subframe may be fed back with mi sub-subs
  • the response information corresponding to the uplink data of the frame is as shown in Table 3.
  • the subframe indicates that the user equipment needs to receive response information on the subframe according to the first timing relationship shown in Table 2.
  • the user equipment may send the uplink data according to the second timing relationship set for the second subframe ratio and the second serving cell.
  • the subframe determines a response subframe for transmitting the response information on the first serving cell.
  • the second timing relationship may be expressed in a form of a table, and the table may also be stored in advance on the network side device side and the user equipment side. It should be noted that the first timing relationship and the second timing relationship involved in the present invention may be the same. For example, the timing representation shown in Table 2 may be used. Alternatively, the first timing relationship and the second timing relationship may also be different.
  • the user equipment can determine, according to the second subframe matching ratio information, the uplink data sent by the user equipment on the second serving cell according to the second timing relationship set for the second subframe ratio and the subframe for transmitting the uplink data.
  • a response subframe in which the response information is received where the response subframe is determined, It may be that there is a subframe of the first PHICH resource set, or there may be no first PHICH resource set subframe.
  • the user equipment may use the PH ICH resource on the first PHICH resource set reserved in the subframe of the first serving cell to receive the network side device.
  • the transmitted response information corresponding to the uplink data transmission of the second serving cell.
  • the user equipment may use the PH ICH resource on the second PHICH resource set reserved in the subframe of the first serving cell, and receive the network side.
  • first subframe matching information and the second subframe matching information correspond to different serving cells accessed by the user equipment.
  • first sub-sub-invention in the embodiment of the present invention is described.
  • the frame matching information and the second subframe matching information may also correspond to the same serving cell accessed by the user equipment. It should be noted that, in this case, the number of serving cells accessed by the user equipment may be greater than one, or may be equal to one.
  • the first subframe matching information and the second subframe matching information may not include flexible subframe information.
  • the first subframe matching information may be any seed frame ratio shown in Table 1.
  • the second subframe may be any seed except the first subframe matching information shown in Table 1.
  • the frame ratio may be; or, the second subframe matching information may be other subframe matching information newly defined for the evolved version.
  • the network side device may further set a partial subframe of one serving cell that the user equipment accesses as a flexible subframe, where the flexible subframe may be required by the network side device according to the user equipment service traffic requirement. Real-time and flexible for transmitting uplink data or downlink data. Therefore, the first subframe matching information may not include flexible subframe information, and the second subframe matching information may include flexible subframe information configured by the network side device for the user equipment.
  • the second subframe matching information may be sent by the network side device to the user equipment by using the broadcast system information, or may be performed by any other means, for example, the network side device may pass the proprietary RRC. Signaling, MAC signaling, or physical layer signaling is sent to the user equipment.
  • the user equipment may determine, according to the first timing relationship set for the first subframe ratio and the corresponding subframe for sending the uplink data, the subframe for receiving the response information, where the determined subframe is the embodiment of the present invention.
  • a sub-frame of the first PHICH resource set exists.
  • the serving cell may also serve an earlier version of the user equipment, such as the user equipment of the LTE TDD version 8 .
  • the network side device sends the first subframe matching information to the user equipment, and the first purpose of setting the first timing relationship and reserving the first PHICH resource set is to enable the early version of the user equipment to access the serving cell. Communication.
  • the evolved version of the user equipment may also receive the response information on the subframe in which the first PHICH resource set exists.
  • the user equipment may determine a response subframe for receiving the response information sent by the network side device according to the second timing relationship set for the second subframe ratio and the corresponding subframe for transmitting the uplink data.
  • the acknowledgement subframe determined here may be a subframe in which the first PHICH resource set exists, or may be a first PHICH resource set subframe.
  • the user equipment may use the second subframe ratio according to the uplink data sent by the user equipment on the uplink subframe U and/or the flexible subframe F.
  • the set second arbitration relationship determines the response subframe of the received response message.
  • the response subframe may be a subframe in which the first PHICH resource set exists, or may be a subframe in which the first PHICH resource set does not exist. If the user equipment has the first PHICH resource set according to the second subframe relationship set for the second subframe ratio, the user equipment may use the PHICH resource on the first PHICH resource set reserved in the subframe. Receive corresponding response information. If the user equipment does not have the first PHICH resource set according to the second subframe relationship set for the second subframe ratio, the user equipment may use the PHICH on the second PHICH resource set reserved in the subframe. The resource receives the corresponding response information.
  • the first timing relationship and the second timing relationship may be expressed in a form of a table, and the table may be stored in advance on the network side device side and the user equipment side.
  • the first timing relationship and the second timing relationship may be The same, for example: ⁇ is expressed in the form shown in Table 2, and the first timing relationship and the second timing relationship may also be different.
  • the embodiment of the present invention when the user equipment receives the different subframe ratios sent by the network side device, if the existing PHICH resource set exists on the response subframe, the network side device is in the existing PHICH.
  • the response information is sent to the user equipment on the resource set; if the existing PHICH resource set does not exist in the response subframe, the response information is sent to the user equipment on the reserved PHICH resource set.
  • the embodiment can effectively reduce the system PHICH resource overhead and ensure the data transmission of the user equipment.
  • the following describes the present invention in a cross-carrier scheduling scenario, that is, a specific example in which the first subframe matching information and the second subframe matching information respectively correspond to different cells accessed by the user equipment: Assume that the user equipment accesses the service at the same time.
  • the cell 1 and the serving cell 2 configure the scheduling command of the user equipment to receive the uplink data transmission of the serving cell 2 on the serving cell 1.
  • the serving cell 1 uses the uplink-downlink subframe ratio 2 shown in Table 1
  • the serving cell 2 uses the uplink-downlink subframe ratio 1 shown in Table 1
  • the network side device sends the service through the serving cell 1.
  • the scheduling command of the uplink data transmission of the cell 2 is used to schedule the uplink data transmission of the serving cell 2.
  • the network side device feeds back the response information corresponding to the uplink data of the serving cell 1 on the serving cell 1, and the network side device also feeds back the response information corresponding to the uplink data of the serving cell 2 on the serving cell 1.
  • the user equipment may send uplink data on the subframe 2 and the subframe 7 of the serving cell 1.
  • the network side device may send the uplink data on the subframe 3 and the subframe 8.
  • the response information can be seen from Table 3, the first PHICH resource set exists on the subframe 3 and the subframe 8, and therefore, the PHICH resource in the first PHICH resource set of the network side device on the subframe 3 and the subframe 8 can be The response message is sent to the user equipment.
  • the second timing relationship shown in FIG. 3 is for the user equipment on the subframe 2 and the subframe 7 of the serving cell 2.
  • the uplink data sent, correspondingly, the network side device may be in the serving cell 1 subframe 8 and subframe 3
  • the acknowledgment information of the uplink data is sent to the user equipment on the PHICH resource in the first PHICH resource set; and the uplink data sent by the user equipment on the subframe 3 and the subframe 8 of the serving cell 2, correspondingly, the network side device may The response information is transmitted to the user equipment on subframe 9 and subframe 4 of the serving cell 1.
  • the network side device may reserve the second PHICH resource set on the subframe 9 and the subframe 4, so that the network side device can pass the subframe 9 and the subframe.
  • the PHICH resource in the second PHICH resource set is reserved for feedback information to the user equipment.
  • the network side device may communicate with multiple user equipments at the same time, the operation of the PHICH resource reservation by the network side device is usually not for an uplink data transmission of a certain terminal. Therefore, the network side device may reserve in advance. The operation of the first PHICH resource set and the second PHICH resource set.
  • the network side device may determine the first response subframe set according to the first timing relationship determined for the first subframe matching information, and reserve the first PHICH in the response subframe of the first response subframe set. Resource collection.
  • the first response subframe set includes all possible response subframes corresponding to the uplink data sent by the user equipment according to the first subframe ratio information, and all the response subframes in the first response subframe set have the first A PHICH resource set, therefore, for the response subframe in the first response subframe set, the network side device does not have to perform the operation of reserving the second PHICH resource.
  • the embodiment of the present invention further provides a resource reservation method for a first PHICH resource set.
  • the number of reserved PH IC H resource groups is m , ⁇ ⁇ PHTCH, Where the value of ⁇ can be given by Table 3, for the short cyclic prefix subframe structure
  • A is the downlink system bandwidth of the serving cell where the first PHICH resource set is located.
  • A is the downlink system bandwidth of the serving cell where the first PHICH resource set is located.
  • A is the downlink system bandwidth of the serving cell where the first PHICH resource set is located.
  • c H represents the orthogonal sequence index in the PHICH resource group.
  • the network side device uses the PHICH resource in the first PHICH resource set to feed back the downlink response to the user equipment.
  • Information, PHICH resource allocation method can be
  • PHICH ⁇ X 1 PRB RA ⁇ DMRS A11 U 1 v PHICH ⁇ 1 PHICH 1 v PHICH n PHICH - JpRB_RA , ⁇ PHICH n DMRs ) 0 ⁇ 2 ⁇ TM° ⁇ , where I PRB _ indicates the physics occupied by the uplink data Resource block index, obtained by demodulating pilot cyclic shift, for short cyclic prefix subframe junction
  • the network side device may further determine the second response subframe set according to the second timing relationship determined for the second subframe matching information, and reserve the second PHICH in the response subframe of the second response subframe set. Resource collection.
  • the second acknowledgment subframe set includes all possible acknowledgment subframes corresponding to the uplink data sent by the user equipment according to the second subframe ratio information, and the partial acknowledgment subframe may exist in the second acknowledgment subframe set.
  • a PHICH resource set may also have a partial PHICH resource set in a partial response subframe. Therefore, the network side device may reserve a second on the subframe in which the first PHICH resource set does not exist in the second response subframe set. PHICH resource collection.
  • the implementation of the present invention further provides a resource reservation method for a second PHICH resource set.
  • the downlink physical control channel includes a PCFICH, a PDCCH, and a PHICH, where the PCFICH channel is used to indicate the number of OFDM symbols occupied by the PDCCH channel.
  • the PDCCH channel is used by the network side device to send a scheduling command for uplink/downlink data transmission to the user equipment.
  • the basic time-frequency resource unit occupied by the PCFICH and PHICH channels is a REG resource, wherein the REG is composed of 6 or 4 consecutive time-frequency resource grid points within one OFDM symbol.
  • the basic time-frequency resource unit occupied by the PDCCH channel is a CCE, and one CCE is composed of 9 REGs.
  • PCFICH channel in the first subframe Four REGs are occupied within one OFDM symbol. Eight PHICH resources can be multiplexed on three REGs.
  • the OFDM symbol occupied by the control channel indicated by the PCFICH all CCEs of the PDCCH channel are interleaved and mapped onto the full frequency band in units of REG.
  • the downlink physical shared channel is further configured to be used by the network device to send downlink data to the user equipment.
  • the network side device may reserve the first part by occupying part of CCE resources and/or physical downlink shared channel resources.
  • the physical downlink shared channel resource refers to the remaining OFDM symbol resources except for the OFDM symbol for transmitting the PDCCH.
  • one subframe is composed of 14 OFDM symbols.
  • the value indicated by the PCFICH is 2, it indicates that the first 2 OFDM symbols of one subframe can be transmitted.
  • the OFDM symbol indicated by the PCFICH except PCFICH, PHICH, and
  • the PDCCH may still have some REG resources remaining, and these remaining REG resources may also be used to reserve the second PHICH resource set.
  • a CCE consists of 9 REGs, and 8 PHICH resources can be multiplexed on 3 REGs. That is, one CCE resource can reuse 24 PHICH resources.
  • one or two CCE resources are usually reserved for the second. The PHICH resource collection is sufficient.
  • the network side device may send, to the user equipment, signaling that carries the CCE index and the PHICH resource group number of the PH ICH resource in the second PH ICH resource set, so that the user equipment determines the response subframe according to the CCE index and the PHICH resource group number.
  • the network side device may carry the CCE index of the PHICH resource in the second PHICH resource set and the signaling of the PHICH resource group number by using the radio resource control RRC signaling; or may carry the second through the media access control MAC signaling.
  • the CCE index of the PHICH resource in the PHICH resource set and the signaling of the PHICH resource group number; or the network side device may further carry the second PHICH resource in the RRC signaling and the MAC signaling respectively
  • the signaling of the CCE index and the PHICH resource group number of the PHICH resource in the set for example, the CCE index is carried in the RRC signaling, and the PHICH resource group number is carried in the MAC signaling.
  • each user equipment may be notified of the index of some or all of the CCEs, and preferably one CCE index is notified. Since one CCE is composed of 9 REGs, 9 REGs in one CCE can be divided into 3 groups, each group consisting of 3 REGs, and 8 PHICH resources multiplexed on 3 REGs of each group are grouped. Therefore, in addition to the CCE index, the network side device may carry the PHICH resource group number in the second PHICH resource set in the dedicated RRC, MAC, and the like signaling. When only one CCE index is notified, the PHICH resource group number can also be notified to the user equipment by using 2-bit RRC dedicated signaling or MAC signaling.
  • the user equipment may determine, according to the CCE index and the PHICH resource group number, the transmission according to the second subframe ratio information. The location of the PHICH resource group in the second PHICH resource set in the response subframe corresponding to the uplink data.
  • the network side device may further carry the orthogonal sequence index in the PHICH resource group in the second PHICH resource set in the information field in the scheduling command, for example: a 3-bit demodulation pilot cyclic shift domain; or obtaining an orthogonal sequence index in the PHICH resource group after modulo 8 by using a time-frequency resource occupied by the uplink data transmission, for example, an occupied physical resource block index; or by scheduling The time-frequency resource occupied by the command, for example, the occupied CC E index, obtains the orthogonal sequence index in the PH IC H resource group after modulo 8 .
  • the user equipment may determine the PHICH resource location in the PHICH resource group according to the orthogonal sequence index in the PHICH resource group in the second PHICH resource set in the scheduling command.
  • the network side device may determine, in the second PHICH resource set, the sending response, according to the CCE index, the PHICH resource group number, and the orthogonal sequence index in the PHICH resource group where the PHICH resource in the second PHICH resource set is located.
  • PHICH resource for information, user equipment The PHICH resource for receiving the response information may also be determined in the second PHICH resource set, that is, the PHICH resource allocation in the second PHICH resource set is completed.
  • the network side device may use the PHICH resource to send the downlink second response information, and the user equipment may use the second PHICH resource set to receive the downlink second response information.
  • the first subframe matching information first is any seed frame ratio shown in Table 1, and may also be another subframe matching ratio newly defined in the LTE TDD evolved version.
  • the second subframe matching information may include flexible subframe information configured by the network side device for the user equipment.
  • the second subframe ratio information is ⁇ D, S, U, F, F, D, S, U, F, F ⁇ as an example. It can be understood that the embodiment of the present invention is also applicable to other flexible subframe configuration modes.
  • flexible subframe configurations may be the same or different for different user equipments.
  • the network side device and the user equipment may pass the first timing relationship (for example, the first timing relationship shown in Table 2) and the subframe corresponding to the uplink data.
  • a response subframe corresponding to the uplink data is determined. As shown in Table 2, when the first subframe matching information indicates that the uplink and downlink subframe ratio is the ratio 2 shown in Table 1, the uplink data transmission in the subframe 2, and the corresponding response subframe is the radio frame.
  • Subframe 8 uplink data transmission in subframe 7, its corresponding response subframe is in subframe 3 of the next radio frame, and can be seen from Table 3, subframe 3 and subframe 8 correspond to mi Is 1, therefore, both subframe 3 and subframe 8 have a first set of PHICH resources.
  • the second subframe ratio is different from the first subframe ratio. Therefore, according to the second timing relationship shown in FIG. 4, for the uplink data sent by the user equipment on the uplink subframe 2 and the uplink subframe 7, correspondingly, The network side device may feed back corresponding response information to the user equipment on the subframe 8 and the subframe 3. Since both the subframe 3 and the subframe 8 have the first PHICH resource set, the network side device may be in the subframe 3 And sending the response message to the user equipment on the PHICH resource of the first PHICH resource set in the subframe 8. The network side device may feed back the corresponding response information to the user equipment on the downlink subframe 0; for the user to the user on the downlink subframe 5 The device responds with the corresponding response information.
  • the network side device can reserve on the subframe 0 and the subframe 5.
  • the second set of PHICH resources so that the network side device can send corresponding response information to the user equipment on the PHICH resources of the second PHICH resource set reserved on the subframe 0 and the subframe 5, as shown in FIG. 4 .
  • the network side device may The corresponding response information is fed back to the user equipment on subframe 8 and subframe 3. Since both the subframe 3 and the subframe 8 have the first PHICH resource set, the network side device may send the response information to the user equipment on the PHICH resources of the first PHICH resource set in the subframe 3 and the subframe 8.
  • the network side device may send the response information to the user equipment by using the PHICH resource in the first PHICH resource set on the subframe 8; the uplink data sent by the user equipment on the subframe 4 according to the second subframe matching information, corresponding to The response information is received on the flexible subframe 9 of the current radio frame. Since the first PHICH resource set does not exist on the subframe 9, the network side device may reserve the second PHICH resource set on the subframe 9, and use the pre-preparation.
  • the PHICH resource in the remaining PHICH resource set sends a response message to the user equipment.
  • the network side device may feed back the corresponding response information on the subframe 3. Since the first PHICH resource set exists on the subframe 3, the network side device may be in the subframe.
  • the response information is sent to the user equipment on the PHICH resource of the first PHICH resource set of 3; for the uplink data sent by the user equipment on the flexible subframe 9, the network side device may feed back the corresponding response information on the subframe 4, Since the first PHICH resource set does not exist on the subframe 4, the network side device may reserve the second PHICH resource set on the subframe 4, and use the PHICH resource in the reserved second PHICH resource set to the user equipment. Send a response message.
  • the first PHICH resource set and the second PHICH resource set reservation method may be referred to as the first method.
  • the subframe matching information and the second subframe matching information correspond to the first PHICH resource set and the second PHICH resource set reservation method in the embodiment of the different access cells accessed by the user equipment, and details are not described herein again.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • FIG. 6 is a schematic structural diagram of an embodiment of a network side device for performing the foregoing method for transmitting a response information according to the present invention.
  • the network side device includes: a transmitter 11, a receiver 12, and a processor 13;
  • the transmitter 11 is configured to send the first subframe ratio information and the second subframe ratio information to the user equipment, where the first subframe ratio information and the second subframe ratio information represent a subframe ratio
  • the processor 13 is configured to determine, according to a first timing relationship set by the first subframe matching information sent by the transmitter 11, the first response subframe set, and in the response subframe of the first response subframe set.
  • the receiver 12 is configured to receive uplink data that is sent by the user equipment according to the second subframe ratio information sent by the transmitter 11;
  • the processor 13 is further configured to: determine, according to a second timing relationship of the transmitter 11 and a subframe of the uplink data received by the receiver 12, a response subframe of the uplink data received by the receiver 12;
  • the transmitter 11 is further configured to: if the first physical layer hybrid automatic repeat request indication channel PHICH resource set exists in the response subframe determined by the processor 13, use the PHICH resource in the first PHICH resource set reserved by the processor 13 The response information is sent to the user equipment. If the first PHICH resource set does not exist in the response subframe determined by the processor 13, the PHICH resource in the second PHICH resource set reserved by the processor 13 is used to send the response information to the user equipment.
  • the present invention further provides another embodiment of the network side device.
  • the first subframe matching information sent by the transmitter 11 to the user equipment corresponds to the first serving cell accessed by the user equipment
  • the transmitter The second subframe matching information sent to the user equipment corresponds to the second serving cell accessed by the user equipment;
  • the receiver 12 may be specifically configured to: receive uplink data on the second serving cell; the transmitter may be specifically configured to: send the response information to the user equipment on the first serving cell.
  • the first subframe matching information and the second subframe matching information that are sent by the transmitter 11 to the user equipment may also correspond to the same serving cell that the user equipment accesses; wherein, the transmitter 11 The first subframe matching information and the second subframe matching information sent by the user equipment do not include flexible subframe information; or
  • the first subframe matching information sent by the transmitter 11 to the user equipment does not include flexible subframe information
  • the second subframe matching information includes flexible subframe information
  • the transmitter 11 may be further configured to: send, to the user equipment, signaling that carries the CCE index and the PHICH resource group number of the PHICH resource in the second PHICH resource set, so that the user equipment according to the CCE index and the PHICH resource group And determining a location of the PHICH resource group in the second PHICH resource set in the response subframe, where the signaling signal sent by the transmitter 11 is the radio resource control RRC signaling and/or the medium access control MAC signaling.
  • the transmitter 11 may be further configured to: send a scheduling command to the user equipment, where the scheduling command includes an orthogonal sequence index in the PHICH resource group in the second PHICH resource set, so that the user equipment determines the orthogonal sequence index.
  • the processor 13 is further configured to: determine, according to the CCE index, the PHICH resource group number, and the orthogonal sequence index of the PHICH resource in the second PHICH resource set, in the second PHICH resource set of the response subframe A PHICH resource that sends a response message.
  • the network side device provided by the embodiment of the present invention corresponding to the embodiment of the method for transmitting the response information provided by the present invention, is an execution device for sending the response information, and the specific process for implementing the method for sending the response information can be referred to the method embodiment. Let me repeat.
  • the network side device when the network side device sends a different subframe ratio to the user equipment, if the existing PHICH resource set exists on the response subframe, the network side device sends the existing PHICH resource set to the current PHICH resource set.
  • the user equipment sends the response information; if the response subframe does not have the existing PHICH resource set, the response information is sent to the user equipment on the reserved PHICH resource set.
  • the embodiment of the present invention can effectively reduce the PHICH resources of the system and ensure the data transmission of the user equipment. .
  • FIG. 7 is a schematic structural diagram of an embodiment of a user equipment for performing the foregoing method for receiving a response information according to the present invention.
  • the user equipment includes: a receiver 21, a transmitter 22, and a processor 23;
  • the receiver 21 is configured to receive first subframe matching information and second subframe matching information that are sent by the network side device, where the first subframe matching information and the subframe represented by the second subframe matching information Different ratios;
  • the transmitter 22 sends uplink data to the network side device according to the second subframe matching information received by the receiver 21;
  • the processor 23 determines a response subframe of the uplink data according to a second timing relationship set for the second subframe matching information received by the receiver 21 and a subframe for transmitting the uplink data.
  • the receiver 21 is further configured to: if the subframe in the response subframe determined by the processor 23 is a first physical layer hybrid automatic repeat request indication channel PHICH resource set, use the PHICH resource in the first PHICH resource set to receive The response information sent by the network side device, if the response subframe determined by the processor 23 is a subframe in which the first PHICH resource set does not exist, the PHICH resource in the reserved second PHICH resource set is used to receive the response sent by the network side device. Information; wherein the first set of PHICH resources is determined by the processor 23 according to a first timing relationship set for the first subframe ratio.
  • the first subframe matching information received by the receiver 21 may be corresponding to the first serving cell accessed by the user equipment, and the receiver 21 The received second subframe matching information may be corresponding to the second serving cell accessed by the user equipment;
  • the transmitter 22 may be specifically configured to: send uplink data to the network side device on the second serving cell;
  • the receiver 21 may be specifically configured to: receive the response information sent by the network side device on the first serving cell.
  • the first subframe matching information and the second subframe matching information received by the receiver 21 may also correspond to the same service and area accessed by the user equipment.
  • the first subframe matching information and the second subframe matching information received by the receiver 21 may not include flexible subframe information; or
  • the first subframe matching information received by the receiver 21 does not include flexible subframe information, and the second subframe matching information received by the receiver 21 may include flexible subframe information.
  • the receiver 21 may be further configured to: receive, by the network side device, the signaling that carries the CCE index and the PHICH resource group number of the PHICH resource in the second PHICH resource set, where the signaling received by the receiver 21 may be Radio resource control RRC signaling and/or medium access control MAC signaling;
  • the processor 23 is further configured to: according to the CCE index and the PHICH resource group number, Determining the location of the PHICH resource group in the second PHICH resource set in the response subframe.
  • the receiver 21 is further configured to: receive a scheduling command sent by the network side device, where the scheduling command includes an orthogonal sequence index in the PHICH resource group in the second PHICH resource set; correspondingly, the processor 23 is further configured to: According to the orthogonal sequence index, the PHICH resource location in the PHICH resource group is determined.
  • the user equipment provided by the embodiment of the present invention corresponding to the embodiment of the method for receiving the response information provided by the present invention, is an apparatus for receiving the response information, and the specific process for implementing the method for receiving the response information can be referred to the method embodiment. Narration.
  • the embodiment of the present invention can effectively reduce the PHICH resources of the system and ensure the data transmission of the user equipment. .

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Abstract

本发明实施例提供一种应答信息的发送方法、接收方法和设备,发送方法包括:向UE发送第一子帧配比信息和第二子帧配比信息;在第一应答子帧集合中预留第一PHICH资源集合;在第二应答子帧集合中不存在第一PHICH资源集合的应答子帧中预留第二PHICH资源集合;接收UE发送的上行数据;确定上行数据的应答子帧;若应答子帧中存在第一PHICH资源集合,则利用第一PHICH资源集合中的PHICH资源向UE发送应答信息,若应答子帧中不存在第一PHICH资源集合,则利用第二PHICH资源集合中的PHICH资源向UE发送应答信息。降低系统PHICH资源开销,保证用户设备的数据传输。

Description

应答信息的发送、 接收方法和设备 本申请要求于 2011 年 8 月 15 日提交中国专利局、 申请号为 201110232590.7、 发明名称为"应答信息的发送、 接收方法和设备"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, 特别涉及一种应答信息的发送、 接收方法 和设备。 背景技术 在长期演进 ( Long Term Evolution; LTE ) 系统的时分双工 (Time Division Duplex; TDD )制式中, 一个无线帧支持多种不同的上下行子帧 配比, 针对每种子帧配比, LTE TDD系统还定义了网络侧设备向用户设备 ( User Equipment; UE )反馈应答信息的时间相对于用户设备发送数据时 间的延迟时间 kPHICH, 即, 定义了上行数据传输到下行应答信息反馈之间的 定时关系。
现有的 LTE TDD系统支持载波聚合( Carrier Aggregation )技术, 一个 用户设备可以同时接入一个或多个成员载波(Component Carrier )来与网 络侧设备进行数据通信, 通常一个成员载波也叫一个服务小区 (Serving Cell ) 。 当一个用户设备同时接入多个服务小区时, 对于服务小区 A的数据 传输, 可以通过服务小区 A发送的调度命令来调度、 即进行同载波调度, 也 可以通过其它服务小区、 例如服务小区 B发送的调度命令来调度、 即进行跨 载波调度。 在进行跨载波调度时, 网络侧设备需要在发送调度命令的服务 小区向用户设备反馈被调度的服务小区上行数据的应答信息。
现有技术中, 当用户设备接入多个具有相同子帧配比的服务小区时, 网络侧设备占用应答子帧中的控制信道单元(Control Channel Element; CCE ) 资源来为每个跨载波调度的服务小区分别预留物理层混合自动重传 请求指示信道(Physical Uplink Shared Channel; PHICH ) 资源, 并在预 留的 PHICH资源上发送上行数据的应答信息。在演进的 LTE TDD系统中, 支持用户设备同时接入多个具有不同子帧配比的服务小区, 此外还可能为 新功能引入新的子帧配比设置、 例如将部分子帧设置为灵活子帧。 当在具 有不同子帧配比的服务小区之间进行跨载波调度、 或者为新功能引入新的 子帧配比设置时, 如何有效地预留和分配 PHICH资源, 在现有技术中尚没 有展开讨论。 发明内容
本发明实施例提供了一种应答信息的发送、 接收方法和设备, 以降低 系统 PHICH资源开销, 保证用户设备的数据传输。
本发明实施例提供一种应答信息的发送方法, 包括:
网络侧设备向用户设备发送第一子帧配比信息和第二子帧配比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧配比 不同;
所述网络侧设备根据为所述第一子帧配比信息设置的第一定时关系, 确定第一应答子帧集合, 并在所述第一应答子帧集合的应答子帧中预留第 一物理层混合自动重传请求指示信道 PHICH资源集合;
所述网络侧设备根据为所述第二子帧配比信息设置的第二定时关系, 确定第二应答子帧集合, 在所述第二应答子帧集合中不存在所述第一 PHICH资源集合的应答子帧中预留第二 PHICH资源集合;
所述网络侧设备接收所述用户设备根据所述第二子帧配比信息发送的 上行数据;
所述网络侧设备根据所述第二定时关系以及接收所述上行数据的子 帧, 确定所述上行数据的应答子帧; 若所述应答子帧中存在第一 PHICH资源集合, 则所述网络侧设备利用 所述第一 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息, 若所述应答子帧中不存在所述第一 PHICH资源集合, 则所述网络侧设备利 用第二 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息。
本发明实施例还提供一种应答信息的接收方法, 包括:
用户设备接收网络侧设备发送的第一子帧配比信息和第二子帧配比信 息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧 配比不同;
所述用户设备根据所述第二子帧配比信息, 向所述网络侧设备发送上 行数据;
所述用户设备根据为所述第二子帧配比信息设置的第二定时关系以及 发送所述上行数据的子帧, 确定所述上行数据的应答子帧;
若所述应答子帧为存在第一物理层混合自动重传请求指示信道 PHICH 资源集合的子帧, 则所述用户设备利用所述第一 PHICH 资源集合中的 PHICH资源接收所述网络侧设备发送的应答信息, 若所述应答子帧为不存 在第一 PHICH 资源集合的子帧, 则所述用户设备利用预留的第二 PHICH 资源集合中的 PHICH资源接收所述网络侧设备发送的应答信息; 其中, 所 述存在第一PHICH资源集合的子帧由所述用户设备根据为所述第一子帧配 比设置的第一定时关系确定。
本发明实施例还提供一种网络侧设备, 包括:
发送器, 用于向用户设备发送第一子帧配比信息和第二子帧配比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧配比 不同;
处理器, 用于根据为所述发送器发送的所述第一子帧配比信息设置的 第一定时关系, 确定第一应答子帧集合, 并在所述第一应答子帧集合的应 答子帧中预留第一物理层混合自动重传请求指示信道 PHICH资源集合;根 据为所述发送器发送的所述第二子帧配比信息设置的第二定时关系, 确定 第二应答子帧集合,在所述第二应答子帧集合中不存在所述第一 PHICH资 源集合的应答子帧中预留第二 PHICH资源集合;
接收器, 用于接收所述用户设备根据所述发送器发送的第二子帧配比 信息发送的上行数据;
所述处理器还用于: 根据为所述第二定时关系以及所述接收器接收的 所述上行数据的子帧, 确定所述接收器接收的所述上行数据的应答子帧; 所述发送器还用于: 若所述处理器确定的所述应答子帧中存在第一 PHICH 资源集合, 则利用所述处理器预留的所述第一 PHICH 资源集合中 的 PHICH资源向所述用户设备发送应答信息,若所述处理器确定的所述应 答子帧中不存在所述第一 PHICH资源集合, 则利用所述处理器预留的所述 第二 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息。
本发明实施例还提供一种用户设备, 包括:
接收器, 用于接收网络侧设备发送的第一子帧配比信息和第二子帧配 比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的 子帧配比不同;
发送器, 用于根据所述接收器接收的所述第二子帧配比信息, 向所述 网络侧设备发送上行数据;
处理器, 用于根据为所述接收器接收的所述第二子帧配比信息设置的 第二定时关系以及发送所述上行数据的子帧, 确定所述上行数据的应答子 帧;
所述接收器还用于: 若所述处理器确定的所述应答子帧为存在第一物 理层混合自动重传请求指示信道 PHICH资源集合的子帧,则利用所述第一 PHICH 资源集合中的 PHICH 资源接收所述网络侧设备发送的应答信息, 若所述处理器确定的所述应答子帧为不存在第一 PHICH资源集合的子帧, 则利用预留的第二 PHICH资源集合中的 PHICH资源接收所述网络侧设备 发送的应答信息; 其中, 所述存在第一 PHICH资源集合的子帧由所述处理 器根据为所述第一子帧配比设置的第一定时关系确定。
本发明实施例提供的应答信息的发送、 接收方法和设备, 网络侧设备 向用户设备发送的不同子帧配比时, 如果应答子帧上存在现有的 PHICH资 源集合,则网络侧设备在现有 PHICH资源集合上向用户设备发送应答信息; 如果应答子帧不存在现有的 PHICH资源集合, 则在预留的 PHICH资源集合 上向用户设备发送应答信息。 当在具有不同子帧配比的服务小区之间进行 跨载波调度、 或者为新功能引入新的子帧配比设置时, 本发明实施例能够 有效降低系统 PHICH资源开销, 保证用户设备的数据传输。 附图说明 为了更清楚地说明本发明实施例或现有技术中的技术方案, 下面将对 实施例或现有技术描述中所需要使用的附图作一简单地介绍, 显而易见地, 下面描述中的附图是本发明的一些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动性的前提下, 还可以根据这些附图获得其他的附图。
图 1为本发明提供的应答信息发送方法一个实施例的流程图; 图 2为本发明提供的应答信息接收方法一个实施例的流程图; 图 3为本发明提供的跨载波调度一个实施例中应答子帧的示意图; 图 4为本发明提供的网络侧设备为用户设备配置灵活子帧一个实施例 中应答子帧的示意图;
图 5为本发明提供的网络侧设备为用户设备配置灵活子帧又一个实施 例中应答子帧的示意图;
图 6为本发明提供的用于执行上述应答信息发送方法的网络侧设备一 个实施例的结构示意图;
图 7为本发明提供的用于执行上述应答信息接收方法的用户设备一个 实施例的结构示意图。 具体实施方式 为使本发明实施例的目的、 技术方案和优点更加清楚, 下面将结合本 发明实施例中的附图, 对本发明实施例中的技术方案进行清楚、 完整地描 述, 显然, 所描述的实施例是本发明一部分实施例, 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作出创造性劳动前提 下所获得的所有其他实施例, 都属于本发明保护的范围。
图 1为本发明提供的应答信息发送方法一个实施例的流程图, 如图 1所 示, 该方法包括:
S101、 网络侧设备向用户设备发送第一子帧配比信息和第二子帧配比 信息, 其中, 第一子帧配比信息和第二子帧配比信息所表示的子帧配比不 同;
5102、 网络侧设备根据为第一子帧配比信息设置的第一定时关系, 确 定第一应答子帧集合, 并在第一应答子帧集合的应答子帧中预留第一物理 层混合自动重传请求指示信道 PHICH资源集合;
5103、 网络侧设备根据为第二子帧配比信息设置的第二定时关系, 确 定第二应答子帧集合, 在第二应答子帧集合中不存在第一 PHICH资源集合 的应答子帧中预留第二 PHICH资源集合;
5104、 网络侧设备接收用户设备根据第二子帧配比信息发送的上行数 据;
5105、 网络侧设备根据第二定时关系以及接收上行数据的子帧, 确定 该上行数据的应答子帧;
5106、 若应答子帧中存在第一 PHICH资源集合, 则网络侧设备利用第 一 PHICH资源集合中的 PHICH资源向用户设备发送应答信息, 若应答子帧 中不存在第一 PHICH资源集合, 则网络侧设备利用第二 PHICH资源集合中 的 PH ICH资源向用户设备发送应答信息。 以上步骤的执行主体网络侧设备, 具体可以是各种类型的基站、 中继 站(relay ) 、 与 UE通信的收发节点等。
S101中, 网络侧设备向用户设备发送的第一子帧配比信息和第二子帧 配比信息所表示的子帧配比不同, 而网络侧设备可以在不同的应用场景下 向用户设备发送第一子帧配比信息和第二子帧配比信息。
本发明实施例可以适用于载波聚合场景, 在载波聚合场景下, 一个用 户设备同时接入多个服务小区来与网络侧设备进行数据通信, 其中, 每个 服务小区可以具有不同的子帧配比。如下表一所示,表一中给出了 LTE TDD 系统支持的 7种上下行子帧配比:
Figure imgf000009_0001
表一
其中, D表示下行子帧, U表示上行子帧, S表示特殊子帧, 特殊子帧 S 可以用于网络侧设备向用户设备发送下行数据包, 而不用于用户设备向网 络侧设备发送上行数据包, 因而通常也被当作下行子帧看待。 表一中提供 了几种 LTE TDD系统支持的子帧配比, 但可以理解的是, 除表一提供的子 帧配比 0〜子帧配比 6以外, LTE TDD系统还可以支持其他子帧配比,并不以 表一作为对本发明的限制。
当用户设备接入多个服务小区的情况下, 对于每个服务小区上的数据 传输, 网络侧设备可以配置用户设备在哪个服务小区来接收调度命令。 其 中, 网络侧设备可以根据需要配置用户设备在哪个服务小区接收调度命令, 或者, 根据具体的数据传输情况配置用户设备在哪个服务小区接收调度命 令。 例如: 对于服务小区 A的上行数据传输, 当网络侧设备在服务小区 A发 送调度命令会受到强干扰并导致用户设备接收性能较差、 而网络侧设备在 服务小区 B发送调度命令没有强干扰时, 网络侧设备可以在服务小区 B上向 用户设备发送调度命令,配置用户设备在服务小区 B上接收网络侧设备在服 务小区 A上发送的上行数据传输的调度命令。对同一服务小区的上行数据传 输, 网络侧设备为不同用户设备配置的接收调度命令的服务小区可以相同, 也可以不同。 例如: 对服务小区 A的上行数据传输, 网络侧设备可以配置用 户设备 1、用户设备 2、用户设备 3和用户设备 4分别在服务小 A、服务小区 B、 服务小区 C和服务小区 B上接收上行数据的调度命令。
在载波聚合场景下, 第一子帧配比信息和第二子帧配比信息可以分别 与用户设备接入的不同服务小区对应。 具体地, 第一子帧配比信息可以与 用户设备接入的第一服务小区对应, 第二子帧配比信息可以与用户设备接 入的第二服务小区对应。
其中, 第二服务小区的上行数据传输的调度命令可以在第一服务小区 传输, 即对该用户设备而言, 第一服务小区是第二服务小区的调度小区。 第一子帧配比信息可以携带在第一服务小区系统消息中发送, 第一子帧配 比信息可以是表一所示的子帧配比 0〜子帧配比 6中的任一种。
作为一种可行的实施方式, 第二子帧配比信息可以携带在第二服务小 区系统消息中发送, 第二子帧配比信息可以为表一所示的子帧配比 0〜子帧 配比 6中除第一子帧配比信息之外的其他任一种。 载波聚合中, 当用户设备 接入多个服务小区时, 多个服务小区中的一个服务小区被配置为该用户设 备的主服务小区( Primary Cell ) ,其它服务小区为辅服务小区(Secondary Cell )。 对于每个用户设备, 网络侧设备可以在其主服务小区上发送所有服 务小区的系统消息, 具体地, 网络侧设备可以通过在主服务小区上发送的 广播信息来发送主服务小区的系统消息, 可以通过在主服务小区发送的专 有无线资源控制 ( Radio Resource Control , RRC )信令来发送辅服务小 区的系统消息。 例如, 当第一服务小区时用户设备的主服务小区时, 第一 子帧配比信息是网络侧设备在第一服务小区通过广播信息来发送的, 第二 子帧配比信息是网络侧设备在第一服务小区通过专有 RRC信令来发送的。
作为另一种可行的实施方式, 第二子帧配比信息还可以是为 LTE TDD 系统演进版本中新定义的子帧配比信息。 另外, 由于网络侧设备还可以进 一步将用户设备接入的一个服务小区的部分子帧设置为灵活子帧, 这些灵 活子帧可以由网络侧设备根据用户设备业务流量需求实时灵活地用于传输 上行数据或者下行数据。 因此, 第二子帧配比信息可以包括网络侧设备为 用户设备配置的灵活子帧信息。 网络侧设备为用户设备配置的一种典型的 灵活子帧信息可以为: {D, S, U , F, F, D, S, U , F, F}。 其中, F表 示灵活子帧。 灵活子帧 F既可以用于网络侧设备向用户设备发送下行数据 包, 又可以用于用户设备向网络侧设备发送上行数据包。 可以理解的是, 灵活子帧信息还可以 LTE TDD系统中支持的其他形式, 在此不——列举。 第二子帧配比信息可以由网络侧设备通过专有 RRC信令或介质接入控制 ( Medium Access Control, MAC )信令等来发送。
用户设备接收到网络侧设备发送的第一子帧配比信息和第二子帧配比 信息后, 可以根据第一子帧配比信息确定可用于在第一服务小区上发送上 行数据的子帧; 并且, 可以根据第二子帧配比信息确定可用于在第二服务 小区上发送上行数据的子帧。 其中, 当第二子帧配比信息包括灵活子帧信 息时, 用户设备确定的可用于在第二服务小区上发送上行数据的子帧可以 是固定上行子帧或者是灵活子帧, 进而, 在确定的可用于在第二服务小区 上发送上行数据的子帧中, 用户设备可以在被调度的子帧上向网络侧设备 发送上行数据。
其中, 网络侧设备在第二服务小区上接收用户设备发送的上行数据后, 在第一服务小区上向用户设备发送该上行数据的应答信息。 在本实施例中, 第一服务小区和第二服务小区具有不同的子帧配比、 并且第二服务小区的 上行数据传输的调度命令在第一服务小区传输, 即第一服务小区可以跨载 波调度具有不同子帧配比的第二服务小区的上行数据传输。 对于一个用户 设备, 当其接入的多个服务小区的上行数据传输被具有不同子帧配比的服 务小区来跨载波调度时, 对每个服务小区的上行数据传输, 网络侧设备都 可以釆用本发明实施例提供应答信息发送方法来向用户设备反馈上行数据 的应答信息。
对于用户设备根据第一子帧配比信息, 在第一服务小区上发送的上行 数据, 当网络侧设备在第一服务小区反馈应答信息时, 网络侧设备可以根 据为第一子帧配比设置的第一定时关系以及接收上行数据的子帧, 确定用 于发送应答信息的子帧, 该用于发送应答信息的子帧即为本发明实施例涉 及的存在第一 PHICH资源集合的子帧。第一定时关系可以以表格形式表示, 该表格可以提前存储在网络侧设备侧和用户设备侧, 第一定时关系中标识 了网络侧设备反馈应答信息的时间相对于用户设备发送上行数据的延迟时 间, 该延迟时间可以以子帧的个数表示。 以下给出一种第一定时关系, 如 表二所示:
Figure imgf000012_0001
表二
从表二可以看出, 每个下行子帧可以反馈与 mi个子帧的上行数据对应 的应答信息, 如下表三所示:
Figure imgf000012_0002
3 1 0 - - - 0 0 0 1 1
4 0 0 - - 0 0 0 0 1 1
5 0 0 - 0 0 0 0 0 1 0
6 1 1 - - - 1 1 - - 1
表三
表三中, mi=0的子帧表示根据表二所示的第一定时关系, 网络侧设备 在该子帧上不需要发送应答信息, 该子帧上不存在第一 PHICH资源集合; mi>=1的子帧表示根据表二所示的第一定时关系,网络侧设备在该子帧上需 要发送应答信息, 该子帧上存在第一 PHICH资源集合。 可以看出, 对于表 二所示的第一定时关系, 表三中 Γτν>=1的子帧即为: 根据为第一子帧配比设 置的第一定时关系获取的存在第一 PHICH资源集合的子帧。
表二仅给出了 LTE TDD系统支持的一种网络侧设备反馈应答信息的时 间相对于用户设备发送上行数据的延迟时间, 可以理解的是, LTE TDD系 统还可以支持其他的网络侧设备反馈应答信息的时间相对于用户设备发送 上行数据的延迟时间, 即, 第一定时关系还可以是除表二之外的其他形式, 并不以表二作为对本发明的限制。
对于用户设备根据第二子帧配比信息, 在第二服务小区上发送的上行 数据, 网络侧设备可以根据为第二子帧配比设置的第二定时关系以及接收 上行数据的子帧, 确定用于在第一服务 d、区上发送应答信息的应答子帧。 其中, 第二定时关系可以以表格形式表示, 该表格也可以提前存储在网络 侧设备侧和用户设备侧。 需要说明的是, 本发明中涉及的第一定时关系和 第二定时关系可以相同, 例如: 都可以釆用表二所示的定时表示。 或者, 第一定时关系和第二定时关系也可以不同。
对用户设备根据第二子帧配比信息, 在第二服务小区上发送的上行数 据, 根据为第二子帧配比设置的第二定时关系以及网络侧设备接收该上行 数据的子帧, 网络侧设备首先能够确定出发送应答信息的应答子帧, 这里 确定的应答子帧中, 可能是存在第一 PHICH资源集合的子帧, 也可能不是 存在第一 PHICH资源集合子帧。 当确定的应答子帧为存在第一 PHICH资源 集合的子帧时, 则网络侧设备可以利用第一服务小区的该子帧中预留的第 一 PHICH资源集合上的 PHICH资源, 向用户设备发送与第二服务小区上行 数据传输对应的应答信息。 当确定的应答子帧不是存在第一 PHICH资源集 合的子帧时, 则网络侧设备可以利用第一服务小区的该子帧中预留的第二 PHICH资源集合上的 PHICH资源, 向用户设备发送与第二服务小区上行数 据对应的应答信息。
由于网络侧设备可能同时与多个用户设备进行通信, 因此, 网络侧设 备进行 PHICH资源预留的操作通常并不是针对某个终端的某一次上行数据 传输, 因此, 网络侧设备可以预先进行预留第一 PHICH资源集合和第二 PHICH资源集合的操作。
具体的, 网络侧设备可以根据为第一子帧配比信息确定的第一定时关 系, 确定第一应答子帧集合, 并在该第一应答子帧集合的应答子帧中预留 第一 PHICH资源集合。 该第一应答子帧集合中包括了用户设备根据第一子 帧配比信息发送的上行数据对应的所有可能的应答子帧, 而第一应答子帧 集合中所有的应答子帧中都存在第一 PHICH资源集合, 因此, 对于第一应 答子帧集合中的应答子帧, 网络侧设备不必再进行预留第二 PHICH资源的 操作。
同样, 网络侧设备还可以根据为第二子帧配比信息确定的第二定时关 系, 确定第二应答子帧集合, 并在该第二应答子帧集合的应答子帧中预留 第二 PHICH资源集合。 其中, 第二应答子帧集合中包括了用户设备根据第 二子帧配比信息发送的上行数据对应的所有可能的应答子帧, 由于第二应 答子帧集合中可能有部分应答子帧存在第一 PHICH资源集合, 也可能有部 分应答子帧不存在第一 PHICH资源集合, 因此, 网络侧设备可以在该第二 应答子帧集合中不存在第一 PHICH资源集合的子帧上预留第二 PHICH资源 集合。 由于第二应答子帧集合中可能有部分应答子帧存在第一 PHICH资源集 合, 也可能有部分应答子帧不存在第一 PHICH资源集合, 可以看出, 第二 应答子帧集合与第一应答子帧集合可能存在交集, 即, 第二应答子帧集合 和第一应答子帧集合中可能存在相同的应答子帧。
另外, 由于 S105中, 网络侧设备根据第二定时关系以及接收上行数据 的子帧, 确定该上行数据的应答子帧。 因此, 可以看出该操作中网络侧设 备确定的应答子帧存在于第二应答子帧集合中。
需要说明的是, 网络侧设备确定第一应答子帧集合, 并在第一应答子 帧集合中的应答子帧上预留第一 PHICH资源集合的操作, 以及网络侧设备 确定第二应答子帧集合, 并在第二应答子帧集合中的应答子帧上预留第二 PHICH资源集合的操作, 与网络侧设备向用户设备发送第一子帧配比信息 和第二子帧配比信息的操作之间并没有顺序限定。即, S101与 S102和 S103 的执行不分先后。 另外, S102和 S103的执行同样不分先后。
其中, 对于第二应答子帧集合中不存在第一 PHICH资源集合的应答子 帧, 网络侧设备可以在该应答子帧的控制信道单元 CCE资源和 /或物理下行 共享信道资源上预留第二 PHICH资源集合。 或者, 网络侧设备还可以在该 应答子帧的物理层控制格式指示信道 ( Physical Control Format Indicator Channel; PCFICH )指示的正交频分复用 ( Orthogonal Frequency Division Multiplexing; OFDM )符号内, 除 PCFICH、 PHICH和 PDCCH之外的资源 格点组( Resource Element Group; REG )资源上预留第二 PHICH资源集 合。
以上描述了第一子帧配比信息和第二子帧配比信息对应用户设备接入 的不同服务小区的情况, 作为另一种可行的实施方式, 本发明实施例中涉 及到的第一子帧配比信息和第二子帧配比信息, 还可以对应用户设备接入 的同一服务小区。 需要说明的是, 这种情况下, 用户设备接入的服务小区 数目可以大于一个, 也可以等于一个。 LTE TDD系统是一个不断演进的无线通信系统,已经讨论完成了 3GPP LTE TDD系统版本 8( Releasee )、版本 9( Release9 )和版本 10( Releasel O ) 的标准制定工作, 其中, 用户设备通过接收网络侧设备广播的系统消息来 获取子帧配比信息; 目前还正在讨论启动版本 1 1、版本 12的标准制定工作, 这些演进版本中可以引入一些更为先进的功能、 例如灵活子帧配置等, 但 需要保持对已完成版本的完全兼容、 例如一个版本 8的用户设备能接入一个 版本 1 1的网络侧设备并与该网络侧设备进行正常通信、 一个版本 1 1的用户 设备也能接入一个版本 8的网络侧设备并与该网络侧设备进行正常通信。 在 演进版本、 例如版本 1 1中, 对同一个服务小区, 网络侧设备可以向同一个 用户设备通知两个子帧配比信息, 即第一子帧配比信息和第二子帧配比信 息, 第一子帧配比可以是系统为后向兼容早期版本的用户设备而下发的, 第二子帧配比可以是为演进版本的用户设备使用更为先进的功能而下发 的。 第一子帧配比信息可以为网络侧设备通过广播的系统消息下发的。
其中, 第一子帧配比信息和第二子帧配比信息可以均不包括灵活子帧 信息。 具体的, 第一子帧配比信息可以是表一所示的任一种子帧配比; 第 二子帧可以是表一所示的、 除第一子帧配比信息之外的任一种子帧配比; 或者, 第二子帧配比信息还可以是为演进版本新定义的其他子帧配比信息。 作为另一种可行的实施方式, 由于网络侧设备还可以进一步将用户设备接 入的一个服务小区的部分子帧设置为灵活子帧, 这些灵活子帧可以由网络 侧设备根据用户设备业务流量需求实时灵活地用于传输上行数据或者下行 数据。 因此, 第一子帧配比信息中可以不包括灵活子帧信息, 第二子帧配 比信息中可以包括网络侧设备为用户设备配置的灵活子帧信息。 网络侧设 备为用户设备配置的一种典型的灵活子帧信息为: {D, S, U , F, F, D, S, U , F, F}。 其中, F表示灵活子帧。 灵活子帧 F既可以用于网络侧设备 向用户设备发送下行数据包, 又可以用于用户设备向网络侧设备发送上行 数据包。 第二子帧配比信息可以是网络侧设备通过广播的系统信息发送给用户 设备, 还可以是通过其它任何方式, 例如: 网络侧设备可以通过专有 RRC 信令、 MAC信令或者物理层信令等发送给用户设备。
网络侧设备可以根据为第一子帧配比设置的第一定时关系以及接收上 行数据的子帧, 确定用于发送应答信息的子帧, 这些确定出来的子帧即为 本发明实施例涉及的存在第一 PHICH资源集合的子帧。 如前, 当第一子帧 配比和第二子帧配比对应用户设备接入的同一服务小区时, 该服务小区可 能还同时服务于早期版本的用户设备、 例如 LTE TDD版本 8的用户设备。 网 络侧设备向用户设备发送第一子帧配比信息, 并且设置第一定时关系以及 预留第一 PHICH资源集合的最主要目的是为了使得早期版本的用户设备也 能接入该服务小区进行正常通信。 但演进版本的用户设备在获取第一子帧 配比信息后, 也可以在存在第一 PHICH资源集合的子帧上接收应答信息。
对于用户设备发送的上行数据, 网络侧设备可以根据为第二子帧配比 设置的第二定时关系以及接收上行数据的子帧, 确定用于发送应答信息的 应答子帧。这里确定的应答子帧中可能为存在第一 PHICH资源集合的子帧, 也可能为不存在第一 PHICH资源集合子帧。 例如: 第二子帧配比信息为灵 活子帧信息的情况下,对于用户设备在上行子帧 U和 /或灵活子帧 F上发送的 上行数据, 网络侧设备根据为第二子帧配比设置的第二定时关系确定的发 送应答信息的应答子帧。 该应答子帧可能为存在第一 PHICH资源集合的子 帧, 也可能为不存在第一 PHICH资源集合的子帧。 如果网络侧设备根据为 第二子帧配比设置的第二定时关系确定的应答子帧存在第一 PHICH资源集 合, 则网络侧设备可以使用该子帧中的预留第一 PHICH资源集合上的 PHICH资源发送对应的应答信息。 如果网络侧设备根据为第二子帧配比设 置的第二定时关系确定的应答子帧不存在第一 PHICH资源集合, 则网络侧 设备可以在该子帧中预留的第二 PHICH资源集合上的 PHICH资源发送对应 的应答信息。 其中, 第一定时关系和第二定时关系可以以表格形式表示, 表格可以 提前存储在网络侧设备侧和用户设备侧。 第一定时关系和第二定时关系可 以相同, 例如: 釆用表二所示的形式表示, 第一定时关系和第二定时关系 也可以不同。
其中, 第一 PHICH资源集合和第二 PHICH资源集合具体的预留方式可 参见本实施例提供的跨载波调度中 PHICH资源预留方法的相关描述, 在此 不再赘述。
本发明实施例提供的应答信息的发送方法, 当用户设备接收到网络侧 设备发送的不同子帧配比时,如果应答子帧上存在现有的 PHICH资源集合, 则网络侧设备在现有 PHICH资源集合上向用户设备发送应答信息; 如果应 答子帧不存在现有的 PHICH资源集合, 则在预留的 PHICH资源集合上向用 户设备发送应答信息。 当在具有不同子帧配比的服务小区之间进行跨载波 调度、 或者为新功能引入新的子帧配比设置时, 本实施例能够有效降低系 统的 PHICH资源开销, 保证用户设备的数据传输。
图 2为本发明提供的应答信息接收方法一个实施例的流程图, 如图 2所 示, 该方法包括:
S201、 用户设备接收网络侧设备发送的第一子帧配比信息和第二子帧 配比信息, 其中, 第一子帧配比信息和第二子帧配比信息所表示的子帧配 比不同;
5202、用户设备根据第二子帧配比信息, 向网络侧设备发送上行数据;
5203、 用户设备根据为第二子帧配比信息设置的第二定时关系以及发 送上行数据的子帧, 确定上行数据的应答子帧;
5204、 若应答子帧为存在第一物理层混合自动重传请求指示信道 PHICH资源集合的子帧, 则用户设备利用第一 PHICH资源集合中的 PHICH 资源接收网络侧设备发送的应答信息, 若应答子帧为不存在第一 PHICH资 源集合的子帧, 则用户设备利用预留的第二 PH ICH资源集合中的 PH ICH资 源接收网络侧设备发送的应答信息; 其中, 存在第一 PHICH资源集合的子 帧由用户设备根据为第一子帧配比设置的第一定时关系确定。
以上步骤的执行主体为用户设备 UE。
S201中, 用户设备接收的网络侧设备发送的第一子帧配比信息和第二 子帧配比信息所表示的子帧配比不同。 用户设备可以在不同的应用场景下 接收到网络侧设备发送的第一子帧配比信息和第二子帧配比信息。
本发明实施例可以适用于载波聚合场景, 在载波聚合场景下, 一个用 户设备同时接入一个或多个成员载波来与网络侧设备进行数据通信, 其中, 每一个成员载波称为一个服务小区。 如果用户设备接入多个服务小区, 则 接入的多个服务小区可以具有不同的子帧配比。
当用户设备接入多个服务小区的情况下, 对于每个服务小区上的数据 传输, 网络侧设备可以配置用户设备在哪个服务小区来接收调度命令。 其 中, 网络侧设备可以根据需要配置用户设备在哪个服务小区接收调度命令, 或者, 根据具体的数据传输情况配置用户设备在哪个服务小区接收调度命 令。
在载波聚合场景下, 第一子帧配比信息和第二子帧配比信息可以分别 与用户设备接入的不同服务小区对应。 具体地, 第一子帧配比信息可以与 用户设备接入的第一服务小区对应, 第二子帧配比信息可以与用户设备接 入的第二服务小区对应。
其中, 第二服务小区的上行数据传输的调度命令可以在第一服务小区 传输, 即对该用户设备而言, 第一服务小区是第二服务小区的调度小区。 第一子帧配比信息可以携带在第一服务小区系统消息中发送, 第一子帧配 比信息可以是表一所示的子帧配比 0〜子帧配比 6中的任一种。
作为一种可行的实施方式, 网络侧设备可以将第二子帧配比信息可以 携带在第二服务小区系统消息中发送, 第二子帧配比信息可以为表一所示 的子帧配比 0〜子帧配比 6中除第一子帧配比信息之外的其他任一种。 对于每个用户设备, 网络侧设备可以在其主服务小区上发送所有服务 小区的系统消息, 具体地, 网络侧设备可以通过在主服务小区上发送的广 播信息来发送主服务小区的系统消息, 可以通过在主服务小区发送的专有
RRC信令来发送辅服务小区的系统消息。 例如, 当第一服务小区时用户设 备的主服务小区时, 第一子帧配比信息是网络侧设备在第一服务小区通过 广播信息来发送的, 第二子帧配比信息是网络侧设备在第一服务小区通过 专有 RRC信令来发送的。
作为另一种可行的实施方式, 第二子帧配比信息还可以是为 LTE TDD 系统演进版本中新定义的子帧配比信息。 另外, 由于网络侧设备还可以进 一步将用户设备接入的一个服务小区的部分子帧设置为灵活子帧, 这些灵 活子帧可以由网络侧设备根据用户设备业务流量需求实时灵活地用于传输 上行数据或者下行数据。 因此, 第二子帧配比信息可以是网络侧设备为用 户设备配置的灵活子帧信息。可以理解的是,灵活子帧信息还可以 LTE TDD 系统中支持的其他形式, 在此不——列举。 第二子帧配比信息可以由网络 侧设备通过专有 RRC信令或 MAC信令等来发送。
用户设备接收到网络侧设备发送的第一子帧配比信息和第二子帧配比 信息后, 可以根据第一子帧配比信息确定可用于在第一服务小区上发送上 行数据的子帧; 并且, 可以根据第二子帧配比信息确定可用于在第二服务 小区上发送上行数据的子帧。 其中, 当第二子帧配比信息包括灵活子帧信 息时, 用户设备确定的可用于在第二服务小区上发送上行数据的子帧可以 是固定上行子帧或者是灵活子帧, 进而, 在确定的可用于在第二服务小区 上发送上行数据的子帧中, 用户设备可以在被调度的子帧上向网络侧设备 发送上行数据。
其中, 对于用户设备在第二服务小区上向网络侧设备发送上行数据, 用户设备会在第一服务小区上接收网络侧设备发送的该上行数据的应答信 息。 在本实施例中, 第一服务小区和第二服务小区具有不同的子帧配比、 并且用户设备在第一服务小区上接收网络侧设备发送的第二服务小区的上 行数据传输的调度命令, 即第一服务小区可以跨载波调度具有不同子帧配 比的第二服务小区的上行数据传输。
对于用户设备根据第一子帧配比信息, 在第一服务小区上发送的上行 数据, 当网络侧设备在第一服务小区上反馈该上行数据的应答信息时, 用 户设备可以根据为第一子帧配比设置的第一定时关系以及在第一服务小区 上发送上行数据的子帧, 确定用于接收该上行数据应答信息的子帧。 确定 的子帧即为本发明实施例涉及的存在第一 PHICH资源集合的子帧。 第一定 时关系可以以表格形式表示, 该表格可以提前存储在网络侧设备侧和用户 设备侧, 第一定时关系可以如表二所示, 表二中, 每个下行子帧可以反馈 与 mi个子帧的上行数据对应的应答信息, 如表三所示, 当 mi=0时, 用户设 备在该子帧上不需要接收应答信息,该子帧上不存在第一 PHICH资源集合; Γτν>=1的子帧表示根据表二所示的第一定时关系,用户设备在该子帧上需要 接收应答信息, 该子帧上存在第一 PHICH资源集合。 可以看出, 对于表二 所示的第一定时关系, 表三中 mi>=1的子帧即为: 根据为第一子帧配比设置 的第一定时关系获取的存在第一 PHICH资源集合的子帧。
对于用户设备根据第二子帧配比信息, 在第二服务小区上发送的上行 数据, 用户设备可以根据为第二子帧配比设置的第二定时关系以及在第二 服务小区上发送上行数据的子帧, 确定用于在第一服务小区上发送应答信 息的应答子帧。 其中, 第二定时关系可以以表格形式表示, 该表格也可以 提前存储在网络侧设备侧和用户设备侧。 需要说明的是, 本发明中涉及的 第一定时关系和第二定时关系可以相同, 例如: 都可以釆用表二所示的定 时表示。 或者, 第一定时关系和第二定时关系也可以不同。
对用户设备根据第二子帧配比信息, 在第二服务小区上发送的上行数 据, 根据为第二子帧配比设置的第二定时关系以及发送上行数据的子帧, 用户设备能够确定出接收应答信息的应答子帧, 这里确定的应答子帧中, 可能是存在第一 PHICH资源集合的子帧, 也可能不是存在第一 PHICH资源 集合子帧。 当确定的应答子帧为存在第一 PHICH资源集合的子帧时, 则用 户设备可以使用第一服务小区的该子帧中预留的第一 PHICH资源集合上的 PH ICH资源, 接收网络侧设备发送的与第二服务小区上行数据传输对应的 应答信息。 当确定的应答子帧不是存在第一 PHICH资源集合的子帧时, 则 用户设备可以使用在第一服务小区的该子帧中预留的第二 PHICH资源集合 上的 PH ICH资源, 接收网络侧设备发送的与第二服务小区上行数据对应的 应答信息。
其中, 网络侧设备预留第一 PH ICH资源集合和预留第二 PH ICH资源集 合的操作可参见应答信息发送方法实施例中的相应描述, 在此不再赘述。
以上描述了第一子帧配比信息和第二子帧配比信息对应用户设备接入 的不同服务小区的情况, 作为另一种可行的实施方式, 本发明实施例中涉 及到的第一子帧配比信息和第二子帧配比信息, 还可以对应用户设备接入 的同一服务小区。 需要说明的是, 这种情况下, 用户设备接入的服务小区 数目可以大于一个, 也可以等于一个。
其中, 第一子帧配比信息和第二子帧配比信息可以均不包括灵活子帧 信息。 具体的, 第一子帧配比信息可以是表一所示的任一种子帧配比; 第 二子帧可以是表一所示的、 除第一子帧配比信息之外的任一种子帧配比; 或者, 第二子帧配比信息还可以是为演进版本新定义的其他子帧配比信息。 作为另一种可行的实施方式, 由于网络侧设备还可以进一步将用户设备接 入的一个服务小区的部分子帧设置为灵活子帧, 这些灵活子帧可以由网络 侧设备根据用户设备业务流量需求实时灵活地用于传输上行数据或者下行 数据。 因此, 第一子帧配比信息中可以不包括灵活子帧信息, 第二子帧配 比信息中可以包括网络侧设备为用户设备配置的灵活子帧信息。
第二子帧配比信息可以是网络侧设备通过广播的系统信息发送给用户 设备, 还可以是通过其它任何方式, 例如: 网络侧设备可以通过专有 RRC 信令、 MAC信令或者物理层信令等发送给用户设备。
用户设备可以根据为第一子帧配比设置的第一定时关系以及对应的发 送上行数据的子帧, 确定用于接收应答信息的子帧, 这些确定出来的子帧 即为本发明实施例涉及的存在第一 PHICH资源集合的子帧。 如前, 当第一 子帧配比和第二子帧配比对应用户设备接入的同一服务小区时, 该服务小 区可能还同时服务于早期版本的用户设备、 例如 LTE TDD版本 8的用户设 备。 网络侧设备向用户设备发送第一子帧配比信息, 并且设置第一定时关 系以及预留第一 P H I C H资源集合的最主要目的是为了使得早期版本的用户 设备也能接入该服务小区进行正常通信。 但演进版本的用户设备在获取第 一子帧配比信息后, 也可以在存在第一 PHICH资源集合的子帧上接收应答 信息。
用户设备可以根据为第二子帧配比设置的第二定时关系以及对应的发 送上行数据的子帧, 确定用于接收网络侧设备发送的应答信息的应答子帧。 这里确定的应答子帧中可能为存在第一 PHICH资源集合的子帧, 也可能为 不存在第一 PHICH资源集合子帧。 例如: 第二子帧配比信息为灵活子帧信 息的情况下, 对于用户设备在上行子帧 U和 /或灵活子帧 F上发送的上行数 据, 用户设备可以根据为第二子帧配比设置的第二定时关系确定的接收应 答信息的应答子帧。 该应答子帧可能为存在第一 PHICH资源集合的子帧, 也可能为不存在第一 PHICH资源集合的子帧。 如果用户设备根据为第二子 帧配比设置的第二定时关系确定的应答子帧存在第一 PHICH资源集合, 则 用户设备可以使用该子帧中预留的第一 PHICH资源集合上的 PHICH资源接 收对应的应答信息。 如果用户设备根据为第二子帧配比设置的第二定时关 系确定的应答子帧不存在第一 PHICH资源集合, 则用户设备可以使用该子 帧中预留的第二 PHICH资源集合上的 PHICH资源接收对应的应答信息。
其中, 第一定时关系和第二定时关系可以以表格形式表示, 表格可以 提前存储在网络侧设备侧和用户设备侧。 第一定时关系和第二定时关系可 以相同, 例如: 釆用表二所示的形式表示, 第一定时关系和第二定时关系 也可以不同。
本发明实施例提供的应答信息的接收方法, 当用户设备接收到网络侧 设备发送的不同子帧配比时,如果应答子帧上存在现有的 PHICH资源集合, 则网络侧设备在现有 PHICH资源集合上向用户设备发送应答信息; 如果应 答子帧不存在现有的 PHICH资源集合, 则在预留的 PHICH资源集合上向用 户设备发送应答信息。 当在具有不同子帧配比的服务小区之间进行跨载波 调度、 或者为新功能引入新的子帧配比设置时, 本实施例能够有效降低系 统 PHICH资源开销, 保证用户设备的数据传输。
以下以跨载波调度场景下, 即第一子帧配比信息和第二子帧配比信息 分别对应用户设备接入的不同小区的一个具体例子对本发明进行详细说 明: 假设用户设备同时接入服务小区 1和服务小区 2 , 网络侧设备配置用户 设备在服务小区 1上接收服务小区 2的上行数据传输的调度命令。
本实施例中, 服务小区 1釆用表一所示的上下行子帧配比 2, 服务小区 2 釆用表一所示的上下行子帧配比 1 , 网络侧设备通过服务小区 1发送服务小 区 2的上行数据传输的调度命令, 来调度服务小区 2的上行数据传输。 网络 侧设备在服务小区 1上反馈服务小区 1的上行数据对应的应答信息, 并且, 网络侧设备还在服务小区 1上反馈服务小区 2的上行数据对应的应答信息。 如果第一定时关系如表二所示, 则用户设备可以在服务小区 1的子帧 2和子 帧 7上发送上行数据, 对应的, 网络侧设备可以在子帧 3和子帧 8上发送该上 行数据的应答信息, 从表三中可以看出, 子帧 3和子帧 8上存在第一 PHICH 资源集合, 因此, 网络侧设备可以在子帧 3和子帧 8上的第一 PHICH资源集 合中的 P H I C H资源上向用户设备发送应答信息。
由于服务小区 2对应的子帧配比与服务小区 1对应的子帧配比不同, 因 此, 如图 3所示的第二定时关系, 对于用户设备在服务小区 2的子帧 2和子帧 7上发送的上行数据, 相应的, 网络侧设备可以在服务小区 1子帧 8和子帧 3 上的第一 PHICH资源集合中的 PHICH资源上向用户设备发送该上行数据的 应答信息; 对于用户设备在服务小区 2的子帧 3和子帧 8上发送的上行数据, 相应的, 网络侧设备可以在服务小区 1的子帧 9和子帧 4上向用户设备发送应 答信息。 由于子帧 9和子帧 4上不存在第一 PHICH资源集合, 因此, 网络侧 设备可以在子帧 9和子帧 4上预留第二 PHICH资源集合, 从而使网络侧设备 可以通过子帧 9和子帧 4上预留第二 PHICH资源集合中的 PHICH资源向用户 设备反馈应答信息。
由于网络侧设备可能同时与多个用户设备进行通信, 因此, 网络侧设 备进行 PHICH资源预留的操作通常并不是针对某个终端的某一次上行数据 传输, 因此, 网络侧设备可以预先进行预留第一 PHICH资源集合和第二 PHICH资源集合的操作。
具体的, 网络侧设备可以根据为第一子帧配比信息确定的第一定时关 系, 确定第一应答子帧集合, 并在该第一应答子帧集合的应答子帧中预留 第一 PHICH资源集合。 该第一应答子帧集合中包括了用户设备根据第一子 帧配比信息发送的上行数据对应的所有可能的应答子帧, 而第一应答子帧 集合中所有的应答子帧中都存在第一 PHICH资源集合, 因此, 对于第一应 答子帧集合中的应答子帧, 网络侧设备不必再进行预留第二 PHICH资源的 操作。
本发明实施还提供一种第一 PHICH资源集合的资源预留方法,具体的, 在每个下行子帧和特殊子帧中, 预留的 P H IC H资源组的数目为 m, · ^PHTCH, 其中 ^ 的取值可以 由表三给出 , 对于短循环前缀子帧结构
¾ = kg fc /8)l 对于扩展循环前缀子顿结构 ^ =2'1 (《/8)1, 「¼ 示向上取整运算, ^ ε {1/6' 1/2Λ 2}是一个广播通知的参数, A 为第一 PHICH资源集合所在服务小区的下行系统带宽。 对于第一 PHICH资源集合 中的每个 PHICH资源, 其通过索引对 来标识, 其中 表示所 在的 PHICH资源组标号、 " cH表示 PHICH资源组内的正交序列索引。 对于 用户设备发送的上行数据, 当网络侧设备使用第一 PHICH资源集合中的 PHICH资源来向用户设备反馈下行应答信息时, PHICH资源的分配方法可
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] "PHICH ~ X1 PRB RA ~ DMRS ) A11 U 1 v PHICH ~ 1 PHICH 1 v PHICH nPHICH - JpRB_RA , ^ PHICH nDMRs ) 0^ 2Λ^™°^ ,其中 I PRB _ 表示上行数据占用的物 理资源块索引, 通过解调导频循环移位获得, 对于短循环前缀子帧结
构 wSF =4 , 对于扩展循环前缀子帧结构 = 2 , «^在上下行子帧配 比为 0且上行数据在子帧 4或子帧 9时取值为 1、 否则取值为 0, 」表示向下 取整。 对第一 PHICH资源集合的资源预留为现有技术, 其具体的资源预留 方法可参考现有技术提供的各种方法, 本实施例中不再过多描述。
同样, 网络侧设备还可以根据为第二子帧配比信息确定的第二定时关 系, 确定第二应答子帧集合, 并在该第二应答子帧集合的应答子帧中预留 第二 PHICH资源集合。 其中, 第二应答子帧集合中包括了用户设备根据第 二子帧配比信息发送的上行数据对应的所有可能的应答子帧, 由于第二应 答子帧集合中可能有部分应答子帧存在第一 PHICH资源集合, 也可能有部 分应答子帧不存在第一 PHICH资源集合, 因此, 网络侧设备可以在该第二 应答子帧集合中不存在第一 PHICH资源集合的子帧上预留第二 PHICH资源 集合。
本发明实施还提供一种第二 PHICH资源集合的资源预留方法,具体的, 在 LTE TDD中, 下行物理控制信道包含 PCFICH、 PDCCH和 PHICH , 其中 PCFICH信道用于指示 PDCCH信道占用的 OFDM符号数目, PDCCH信道用 于网络侧设备向用户设备发送上行 /下行数据传输的调度命令。 PCFICH和 PHICH信道占用的基本时频资源单元是 REG资源, 其中 REG由一个 OFDM 符号内的 6个或 4个连续的时频资源格点组成。 PDCCH信道占用的基本时频 资源单元是 CCE, 其中一个 CCE由 9个 REG组成。 PCFICH信道在子帧的第 一个 OFDM符号内占用 4个 REG。 3个 REG上可以复用 8个 PHICH资源。 在 由 PCFICH指示的控制信道占用的 OFDM符号内, PDCCH信道的所有 CCE 以 REG为单位进行交织分散映射到全频带上。 除下行物理控制信道之外, 还包括下行物理共享信道, 用于网络设备向用户设备发送下行数据。
作为一种可行的实施方式, 对于第二应答子帧集合中不存在第一 PHICH资源的应答子帧, 网络侧设备可以通过占用部分 CCE资源和 /或物理 下行共享信道资源的方式来预留第二 PHICH资源集合。 其中, 物理下行共 享信道资源是指除传输 PDCCH的 OFDM符号之外、 剩余的 OFDM符号资 源。 以短循环前缀子帧结构为例, 一个子帧由 14个 OFDM符号组成, 当 PCFICH指示的取值为 2时, 表示一个子帧的前 2个 OFDM符号可以传输 道。 另外, 在 PCFICH指示的 OFDM符号内, 除了 PCFICH、 PHICH和
PDCCH ,可能还剩余部分 REG资源, 而这些剩余的 REG资源也可以用于预 留第二 PHICH资源集合。
一个 CCE由 9个 REG组成, 而 3个 REG上可以复用 8个 PHICH资源, 即 一个 CCE资源可以复用 24个 PHICH资源。 考虑到配置了灵活子帧的用户设 备、 和 /或配置聚合了不同上下行子帧配比的服务小区的用户设备数目通常 较少, 因此, 通常预留 1 ~2个 CCE资源用做第二 PHICH资源集合即可。
网络侧设备可以向用户设备发送携带第二 PH ICH资源集合中的 PH ICH 资源所在的 CCE索引以及 PHICH资源组号的信令, 以使得用户设备根据 CCE索引以及 PHICH资源组号, 确定应答子帧中的第二 PHICH资源集合中 的 PHICH资源组的位置。 其中, 网络侧设备可以通过无线资源控制 RRC信 令携带第二 PHICH资源集合中的 PHICH资源所在的 CCE索引以及 PHICH 资源组号的信令; 或者还可以通过媒体接入控制 MAC信令携带第二 PHICH 资源集合中的 PHICH资源所在的 CCE索引以及 PHICH资源组号的信令; 或 者, 网络侧设备还可以在 RRC信令和 MAC信令中分别携带第二 PHICH资源 集合中的 PHICH资源所在的 CCE索引和 PHICH资源组号的信令, 例如: CCE索引携带在 RRC信令中、 PHICH资源组号携带在 MAC信令中。
当系统中通过多个 CCE资源来预留第二 PHICH资源集合时, 可以为每 个用户设备通知这多个 CCE中的部分或全部 CCE的索引, 优选通知一个 CCE索引。 由于一个 CCE由 9个 REG组成, 因此, 可以将一个 CCE中的 9个 REG分成 3组,每组包含 3个 REG,每组的 3个 REG上复用的 8个 PHICH资源 作为一组。 因此, 除了 CCE索引, 网络侧设备还可以在专用 RRC、 MAC等 信令中携带第二 PHICH资源集合中的 PHICH资源组号。 当只通知一个 CCE 索引时, 还可以通过 2比特 RRC专有信令或 MAC信令来向用户设备通知 PHICH资源组号。
用户设备接收到第二 PHICH资源集合中的 PHICH资源所在的控制信道 单元 CCE索引以及 PHICH资源组号后, 可以根据该 CCE索引以及该 PHICH 资源组号, 确定根据第二子帧配比信息发送的上行数据对应的应答子帧中, 第二 PHICH资源集合中的 PHICH资源组的位置。
进一步的, 网络侧设备在向用户设备发送调度命令时, 还可以在调度 命令中的信息域中携带第二 PHICH资源集合中的 PHICH资源组内的正交序 列索引, 例如: 通过调度命令中的 3比特解调导频循环移位域; 或者通过上 行数据传输所占用的时频资源、 例如占用的物理资源块索引, 对 8取模后获 取 PHICH资源组内的正交序列索引; 或者通过调度命令占用的时频资源、 例如占用的 CC E索引, 对 8取模后获取 P H IC H资源组内的正交序列索引。
用户设备接收到网络侧设备发送的调度命令后, 可以根据调度命令中 包含第二 PHICH资源集合中的 PHICH资源组内的正交序列索引, 确定 PHICH资源组内的 PHICH资源位置。
综上, 根据第二 PHICH资源集合中的 PHICH资源所在的 CCE索引、 PHICH资源组号以及 PHICH资源组内的正交序列索引, 网络侧设备可以在 第二 PHICH资源集合中确定出用于发送应答信息的 PHICH资源, 用户设备 也可以在第二 PHICH资源集合中确定出用于接收应答信息的 PHICH资源, 即完成在第二 PHICH资源集合中的 PHICH资源分配。 在第二 PHICH资源集 合中分配 PHICH资源后, 网络侧设备可以使用该 PHICH资源来发送下行第 二应答信息, 用户设备可以使用该第二 PHICH资源集合来接收下行第二应 答信息。
以下再以第一子帧配比信息和第二子帧配比信息对应用户设备接入的 同一接入小区的场景为例, 对本发明实施例进行详细说明。 本实施例中, 第一子帧配比信息第一为表一所示的任一种子帧配比, 还可以为 LTE TDD 演进版本新定义的其他子帧配比。 第二子帧配比信息可以包括网络侧设备 为用户设备配置的灵活子帧信息。本实施例中以第二子帧配比信息为 {D, S, U , F, F, D, S, U , F, F}为例进行说明。 可以理解的是, 本发明实施例 也适用于其他的灵活子帧配置方式。 另外, 需要说明的是, 在同一个 LTE TDD系统中, 对于不同的用户设备, 灵活子帧的配置方式可以相同, 也可 以不同。
对于用户设备根据第一子帧配比信息发送的上行数据, 网络侧设备和 用户设备均可以通过第一定时关系 (例如表二所示的第一定时关系) 以及 该上行数据对应的子帧, 确定该上行数据对应的应答子帧。 从表二可知, 当第一子帧配比信息指示上下行子帧配比为表一所示的配比 2时, 子帧 2中 的上行数据传输, 其对应的应答子帧为本无线帧的子帧 8; 子帧 7中的上行 数据传输, 其对应的应答子帧为下一个无线帧的子帧 3中, 又由表三可以看 出,子帧 3和子帧 8对应的当 mi均为 1 ,因此,子帧 3和子帧 8均存在第一 PHICH 资源集合。
第二子帧配比与第一子帧配比不同, 因此, 根据图 4所示的第二定时关 系, 对于用户设备在上行子帧 2和上行子帧 7上发送的上行数据, 相应的, 网络侧设备可以在子帧 8和子帧 3上向用户设备反馈对应的应答信息。 由于 子帧 3和子帧 8均存在第一 PHICH资源集合, 因此, 网络侧设备可以在子帧 3 和子帧 8中的第一 PHICH资源集合的 PHICH资源上向用户设备发送应答信 网络侧设备可以在下行子帧 0上向用户设备反馈对应的应答信息; 对于用户 以在下行子帧 5上向用户设备反馈对应的应答信息; 根据表三可以看出, 由 于下行子帧 0和下行子帧 5中不存在第一 PHICH资源集合, 因此, 可以网络 侧设备可以在子帧 0和子帧 5上预留第二 PHICH资源集合, 从而使网络侧设 备可以在子帧 0和子帧 5上预留的第二 PHICH资源集合的 PHICH资源上向用 户设备发送对应的应答信息, 如图 4所示。
如果釆用另外一种第二定时关系确定的应答子帧, 如图 5所示, 其中, 对于用户设备在上行子帧 2和上行子帧 7上发送的上行数据, 相应的, 网络 侧设备可以在子帧 8和子帧 3上向用户设备反馈对应的应答信息。由于子帧 3 和子帧 8均存在第一 PHICH资源集合, 因此, 网络侧设备可以在子帧 3和子 帧 8中的第一 PHICH资源集合的 PHICH资源上向用户设备发送应答信息。对 于用户设备根据第二子帧配比信息在子帧 3上发送的上行数据, 对应的应答 信息在本无线帧的灵活子帧 8上接收, 由于子帧 8上具有第一 PHICH资源集 合, 因此, 网络侧设备可以使用子帧 8上的第一 PHICH资源集合中的 PHICH 资源向用户设备发送应答信息; 对于用户设备根据第二子帧配比信息在子 帧 4上发送的上行数据, 对应的应答信息在本无线帧的灵活子帧 9上接收, 由于子帧 9上不存在第一 PHICH资源集合, 因此, 网络侧设备可以在子帧 9 上预留第二 PHICH资源集合, 并釆用预留的第二 PHICH资源集合中的 PHICH资源向用户设备发送应答信息。对于用户设备在灵活子帧 8上发送的 上行数据, 网络侧设备可以在子帧 3上反馈对应的应答信息, 由于子帧 3上 存在第一 PHICH资源集合, 因此, 网络侧设备可以在子帧 3的第一 PHICH 资源集合的 P H I C H资源上向用户设备反馈应答信息; 对于用户设备在灵活 子帧 9上发送的上行数据, 网络侧设备可以在子帧 4上反馈对应的应答信息, 由于子帧 4上不存在第一 PHICH资源集合, 因此, 网络侧设备可以在子帧 4 上预留第二 PHICH资源集合, 并釆用预留的第二 PHICH资源集合中的 PHICH资源向用户设备发送应答信息。 对于第一子帧配比信息和第二子帧配比信息对应用户设备接入的同一 接入小区的场景下, 第一 PHICH资源集合和第二 PHICH资源集合的预留方 法, 可参见第一子帧配比信息和第二子帧配比信息对应用户设备接入的不 同接入小区的实施例中第一 PHICH资源集合和第二 PHICH资源集合的预留 方法, 在此不再赘述。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流 程, 是可以通过计算机程序来指令相关的硬件来完成, 的程序可存储于一 计算机可读取存储介质中, 该程序在执行时, 可包括如上述各方法的实施 例的流程。其中,的存储介质可为磁碟、光盘、只读存储记忆体(Read-Only Memory, ROM )或随机存储记忆体( Random Access Memory, RAM ) 等。
图 6为本发明提供的用于执行上述应答信息发送方法的网络侧设备一 个实施例的结构示意图, 如图 6所示, 该网络侧设备包括: 发送器 11、 接 收器 12和处理器 13;
发送器 11 , 用于向用户设备发送第一子帧配比信息和第二子帧配比信 息, 其中, 第一子帧配比信息和第二子帧配比信息所表示的子帧配比不同; 处理器 13, 用于根据为发送器 11 发送的第一子帧配比信息设置的第 一定时关系, 确定第一应答子帧集合, 并在第一应答子帧集合的应答子帧 中预留第一物理层混合自动重传请求指示信道 PHICH资源集合;根据为发 送器 11发送的第二子帧配比信息设置的第二定时关系, 确定第二应答子帧 集合,在第二应答子帧集合中不存在第一 PHICH资源集合的应答子帧中预 留第二 PHICH资源集合; 接收器 12, 用于接收用户设备根据发送器 11 发送的第二子帧配比信 息发送的上行数据;
处理器 13还用于:根据为发送器 11第二定时关系以及接收器 12接收 的上行数据的子帧, 确定接收器 12接收的上行数据的应答子帧;
发送器 11还用于: 若处理器 13确定的应答子帧中存在第一物理层混 合自动重传请求指示信道 PHICH资源集合, 则利用处理器 13预留的第一 PHICH资源集合中的 PHICH资源向用户设备发送应答信息, 若处理器 13 确定的应答子帧中不存在第一 PHICH资源集合, 则利用处理器 13预留的 第二 PHICH资源集合中的 PHICH资源向用户设备发送应答信息。
本发明还提供了网络侧设备又一个实施例, 作为一种可行的实施方式, 发送器 11向用户设备发送的第一子帧配比信息与用户设备接入的第一服务 小区对应, 发送器 11向用户设备发送的第二子帧配比信息与用户设备接入 的第二服务小区对应;
相应的, 接收器 12可以具体用于: 在第二服务小区上接收上行数据; 发送器可以具体用于: 在第一服务小区上向用户设备发送应答信息。 作为另一种可行的实施方式, 发送器 11向用户设备发送的第一子帧配 比信息和第二子帧配比信息还可以对应用户设备接入的同一服务小区; 其中, 发送器 11向用户设备发送的第一子帧配比信息和第二子帧配比 信息均不包含灵活子帧信息; 或者,
发送器 11向用户设备发送的第一子帧配比信息不包含灵活子帧信息, 第二子帧配比信息包含灵活子帧信息。
进一步的, 发送器 11 还可以用于: 向用户设备发送携带第二 PHICH 资源集合中的 PHICH资源所在的 CCE索引以及 PHICH资源组号的信令, 以使得用户设备根据该 CCE索引以及 PHICH资源组号, 确定应答子帧中 的第二 PHICH资源集合中的 PHICH资源组的位置; 其中,发送器 11发送 的信令尅为无线资源控制 RRC信令和 /或媒体接入控制 MAC信令。 发送器 11还可以进一步用于: 向用户设备发送调度命令, 调度命令中 包含第二 PHICH资源集合中的 PHICH资源组内的正交序列索引, 以使得 用户设备才艮据正交序列索引, 确定 PHICH资源组内的 PHICH资源位置。
相应的,处理器 13还可以用于:根据第二 PHICH资源集合中的 PHICH 资源所在的 CCE索引、 PHICH 资源组号以及正交序列索引, 在应答子帧 的第二 PHICH资源集合中确定用于发送应答信息的 PHICH资源。
本发明实施例提供的网络侧设备, 与本发明提供的应答信息发送方法 实施例相对应, 为发送应答信息的执行设备, 其实现应答信息发送方法的 具体过程可参见方法实施例, 在此不再赘述。
本实施例提供的网络侧设备, 当网络侧设备向用户设备下发不同子帧 配比时, 如果应答子帧上存在现有的 PHICH资源集合, 则网络侧设备在现 有 PHICH资源集合上向用户设备发送应答信息; 如果应答子帧不存在现有 的 PHICH资源集合, 则在预留的 PHICH资源集合上向用户设备发送应答 信息。 当在具有不同子帧配比的服务小区之间进行跨载波调度、 或者为新 功能引入新的子帧配比设置时, 本发明实施例能够有效降低系统的 PHICH 资源, 保证用户设备的数据传输。
图 7为本发明提供的用于执行上述应答信息接收方法的用户设备一个 实施例的结构示意图, 如图 7所示, 该用户设备包括: 接收器 21、 发送器 22和处理器 23;
接收器 21, 用于接收网络侧设备发送的第一子帧配比信息和第二子帧 配比信息, 其中, 第一子帧配比信息和第二子帧配比信息所表示的子帧配 比不同;
发送器 22, 根据接收器 21 接收的第二子帧配比信息, 向网络侧设备 发送上行数据;
处理器 23, 根据为接收器 21 接收的第二子帧配比信息设置的第二定 时关系以及发送所述上行数据的子帧, 确定上行数据的应答子帧; 接收器 21 还可以用于: 若处理器 23确定的应答子帧中为存在第一物 理层混合自动重传请求指示信道 PHICH 资源集合的子帧, 则利用第一 PHICH 资源集合中的 PHICH 资源接收网络侧设备发送的应答信息, 若处 理器 23确定的应答子帧为不存在第一 PHICH资源集合的子帧, 则利用预 留的第二 PHICH资源集合中的 PHICH资源接收网络侧设备发送的应答信 息; 其中, 存在第一 PHICH资源集合由处理器 23根据为第一子帧配比设 置的第一定时关系确定。
在上述提供的用户设备一个实施例的基础上, 作为一种可行的实施方 式,接收器 21接收到的第一子帧配比信息可以与用户设备接入的第一服务 小区对应,接收器 21接收到的第二子帧配比信息可以与用户设备接入的第 二服务小区对应;
相应的, 发送器 22可以具体用于: 在第二服务小区上向网络侧设备发 送上行数据;
接收器 21可以具体用于: 在第一服务小区上接收网络侧设备发送的应 答信息。
作为另一种可行的实施方式,接收器 21接收的第一子帧配比信息和第 二子帧配比信息还可以对应用户设备接入的同一服务 、区。
其中, 接收器 21接收的第一子帧配比信息和第二子帧配比信息可以均 不包含灵活子帧信息; 或者,
接收器 21 接收的第一子帧配比信息不包含灵活子帧信息, 接收器 21 接收的第二子帧配比信息可以包含灵活子帧信息。
进一步的, 接收器 21 还可以用于: 接收网络侧设备发送的携带第二 PHICH资源集合中 PHICH资源所在的 CCE索引以及 PHICH资源组号的 信令, 其中, 接收器 21接收的信令可以为无线资源控制 RRC信令和 /或媒 体接入控制 MAC信令;
相应的 ,处理器 23还可以用于:根据 CCE索引以及 PHICH资源组号, 确定应答子帧中的第二 PHICH资源集合中的 PHICH资源组的位置。
接收器 21还可以进一步用于: 接收网络侧设备发送的调度命令, 调度 命令中包含第二 PHICH资源集合中的 PHICH资源组内的正交序列索引; 相应的, 处理器 23还可以用于: 根据正交序列索引, 确定 PHICH资 源组内的 PHICH资源位置。
本发明实施例提供的用户设备, 与本发明提供的应答信息接收方法实 施例相对应, 为接收应答信息的执行设备, 其实现应答信息接收方法的具 体过程可参见方法实施例, 在此不再赘述。
本实施例提供的用户设备, 当用户设备接收到网络侧设备下发的不同 子帧配比时, 如果应答子帧上存在现有的 PHICH资源集合, 则网络侧设备 在现有 PHICH资源集合上向用户设备发送应答信息; 如果应答子帧不存在 现有的 PHICH资源集合, 则在预留的 PHICH资源集合上向用户设备发送 应答信息。 当在具有不同子帧配比的服务小区之间进行跨载波调度、 或者 为新功能引入新的子帧配比设置时, 本发明实施例能够有效降低系统的 PHICH资源, 保证用户设备的数据传输。
最后应说明的是: 以上实施例仅用以说明本发明的技术方案, 而非对 其限制; 尽管参照前述实施例对本发明进行了详细的说明, 本领域的普通 技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进行修 改, 或者对其中部分技术特征进行等同替换; 而这些修改或者替换, 并不 使相应技术方案的本质脱离本发明各实施例技术方案的精神和范围。

Claims

权利要求
1、 一种应答信息的发送方法, 其特征在于, 包括:
网络侧设备向用户设备发送第一子帧配比信息和第二子帧配比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧配比 不同;
所述网络侧设备根据为所述第一子帧配比信息设置的第一定时关系, 确定第一应答子帧集合, 并在所述第一应答子帧集合的应答子帧中预留第 一物理层混合自动重传请求指示信道 PHICH资源集合;
所述网络侧设备根据为所述第二子帧配比信息设置的第二定时关系, 确定第二应答子帧集合, 在所述第二应答子帧集合中不存在所述第一 PHICH资源集合的应答子帧中预留第二 PHICH资源集合;
所述网络侧设备接收所述用户设备根据所述第二子帧配比信息发送的 上行数据;
所述网络侧设备根据所述第二定时关系以及接收所述上行数据的子 帧, 确定所述上行数据的应答子帧;
若所述应答子帧中存在第一 PHICH资源集合, 则所述网络侧设备利用 所述第一 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息, 若所述应答子帧中不存在所述第一 PHICH资源集合, 则所述网络侧设备利 用第二 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息。
2、 根据权利要求 1所述的方法, 其特征在于,
所述第一子帧配比信息与所述用户设备接入的第一服务小区对应, 所 述第二子帧配比信息与用户设备接入的第二服务小区对应;
所述上行数据由所述网络侧设备在所述第二服务小区上接收, 所述应 答信息由所述网络侧设备在所述第一服务小区上向所述用户设备发送。
3、 根据权利要求 1所述的方法, 其特征在于, 所述第一子帧配比信息 和所述第二子帧配比信息对应用户设备接入的同一服务小区; 其中, 所述第一子帧配比信息和所述第二子帧配比信息均不包含灵活子帧信 息; 或者,
所述第一子帧配比信息不包含灵活子帧信息, 所述第二子帧配比信息 包含灵活子帧信息。
4、 根据权利要求 1 -3任意一项所述的方法, 其特征在于, 所述网络侧 设备向用户设备发送第一子帧配比信息和第二子帧配比信息之后, 还包括: 所述网络侧设备向所述用户设备发送携带所述第二 PH ICH资源集合中 户设备根据所述 CCE索引以及所述 PHICH资源组号, 确定所述应答子帧中 的所述第二 PHICH资源集合中的 PHICH资源组的位置; 其中, 所述信令为 无线资源控制 RRC信令和 /或媒体接入控制 MAC信令。
5、 根据权利要求 4所述的方法, 其特征在于, 所述网络侧设备接收所 述用户设备根据所述第二子帧配比信息发送的上行数据之前, 还包括: 所述网络侧设备向所述用户设备发送调度命令, 所述调度命令中包含 所述第二 PHICH资源集合中的 PHICH资源组内的正交序列索引, 以使得所 述用户设备根据所述正交序列索引, 确定所述 PHICH资源组内的 PHICH资 源位置。
6、 根据权利要求 5所述的方法, 其特征在于, 所述网络侧设备利用预 留的第二 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息之 前, 还包括:
所述网络侧设备根据所述第二 PH ICH资源集合中的 PH ICH资源所在的 CCE索引、 PHICH资源组号以及所述正交序列索引, 在所述应答子帧的第 二 PHICH资源集合中确定用于发送所述应答信息的 PHICH资源。
7、 一种应答信息的接收方法, 其特征在于, 包括:
用户设备接收网络侧设备发送的第一子帧配比信息和第二子帧配比信 息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧 配比不同;
所述用户设备根据所述第二子帧配比信息, 向所述网络侧设备发送上 行数据;
所述用户设备根据为所述第二子帧配比信息设置的第二定时关系以及 发送所述上行数据的子帧, 确定所述上行数据的应答子帧;
若所述应答子帧为存在第一物理层混合自动重传请求指示信道
PHICH资源集合的子帧, 则所述用户设备利用所述第一 PHICH资源集合中 的 PHICH资源接收所述网络侧设备发送的应答信息, 若所述应答子帧为不 存在第一 PHICH资源集合的子帧, 则所述用户设备利用预留的第二 PHICH 资源集合中的 PHICH资源接收所述网络侧设备发送的应答信息; 其中, 所 述存在第一 PHICH资源集合的子帧由所述用户设备根据为所述第一子帧配 比设置的第一定时关系确定。
8、 根据权利要求 7所述的方法, 其特征在于, 所述第一子帧配比信息 与用户设备接入的第一服务小区对应, 所述第二子帧配比信息与用户设备 接入的第二服务小区对应;
所述上行数据由所述用户设备在所述第二服务小区上向所述网络侧设 备发送, 所述应答信息由所述用户设备在所述第一服务小区上接收。
9、 根据权利要求 7所述的方法, 其特征在于, 所述第一子帧配比信息 和所述第二子帧配比信息对应用户设备接入的同一服务小区; 其中,
所述第一子帧配比信息和所述第二子帧配比信息均不包含灵活子帧信 息; 或者,
所述第一子帧配比信息不包含灵活子帧信息, 所述第二子帧配比信息 包含灵活子帧信息。
10、 根据权利要求 7-9任意一项所述的方法, 其特征在于, 所述用户 设备接收网络侧设备发送的第一子帧配比信息和第二子帧配比信息之后, 还包括:
所述用户设备接收所述网络侧设备发送的携带所述第二 PHICH资源集 合中 PHICH资源所在的 CCE索引以及 PHICH资源组号的信令,其中,所 述信令为无线资源控制 RRC信令和 /或媒体接入控制 MAC信令;
所述用户设备根据所述 CCE索引以及所述 PHICH资源组号, 确定所 述应答子帧中的所述第二 PHICH资源集合中的 PHICH资源组的位置。
11、 根据权利要求 10所述的方法, 其特征在于, 所述用户设备根据所 述第二子帧配比信息, 向所述网络侧设备发送上行数据之前, 还包括: 所述用户设备接收所述网络侧设备发送的调度命令, 所述调度命令中 包含所述第二 PHICH资源集合中的 PHICH资源组内的正交序列索引; 所述用户设备根据所述正交序列索引, 确定所述 PHICH 资源组内的 PHICH资源位置。
12、 一种网络侧设备, 其特征在于, 包括:
发送器, 用于向用户设备发送第一子帧配比信息和第二子帧配比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的子帧配比 不同;
处理器, 用于根据为所述发送器发送的所述第一子帧配比信息设置的 第一定时关系, 确定第一应答子帧集合, 并在所述第一应答子帧集合的应 答子帧中预留第一物理层混合自动重传请求指示信道 PHICH资源集合;根 据为所述发送器发送的所述第二子帧配比信息设置的第二定时关系, 确定 第二应答子帧集合,在所述第二应答子帧集合中不存在所述第一 PHICH资 源集合的应答子帧中预留第二 PHICH资源集合;
接收器, 用于接收所述用户设备根据所述发送器发送的第二子帧配比 信息发送的上行数据;
所述处理器还用于: 根据为所述第二定时关系以及所述接收器接收的 所述上行数据的子帧, 确定所述接收器接收的所述上行数据的应答子帧; 所述发送器还用于: 若所述处理器确定的所述应答子帧中存在第一
PHICH 资源集合, 则利用所述处理器预留的所述第一 PHICH 资源集合中 的 PHICH资源向所述用户设备发送应答信息,若所述处理器确定的所述应 答子帧中不存在所述第一 PHICH资源集合, 则利用所述处理器预留的所述 第二 PHICH资源集合中的 PHICH资源向所述用户设备发送应答信息。
13、 根据权利要求 12所述的网络侧设备, 其特征在于, 所述发送器向 所述用户设备发送的第一子帧配比信息与所述用户设备接入的第一服务小 区对应, 所述发送器向所述用户设备发送的第二子帧配比信息与用户设备 接入的第二服务小区对应;
所述接收器具体用于: 在所述第二服务小区上接收所述上行数据; 所述发送器具体用于: 在所述第一服务小区上向所述用户设备发送所 述应答信息。
14、 根据权利要求 12所述的网络侧设备, 其特征在于, 所述发送器向 所述用户设备发送的第一子帧配比信息和所述第二子帧配比信息对应所述 用户设备接入的同一服务小区; 其中,
所述发送器向所述用户设备发送的所述第一子帧配比信息和所述第二 子帧配比信息均不包含灵活子帧信息; 或者,
所述发送器向所述用户设备发送的第一子帧配比信息不包含灵活子帧 信息, 所述第二子帧配比信息包含灵活子帧信息。
15、 根据权利要求 12-14任意一项所述的网络侧设备, 其特征在于, 所述发送器还用于: 向所述用户设备发送携带所述第二 PHICH资源集合中 的 PHICH资源所在的 CCE索引以及 PHICH资源组号的信令,以使得所述 用户设备根据所述 CCE索引以及所述 PHICH资源组号, 确定所述应答子 帧中的所述第二 PHICH资源集合中的 PHICH资源组的位置; 其中, 所述 信令为无线资源控制 RRC信令和 /或媒体接入控制 MAC信令。
16、 根据权利要求 15所述的网络侧设备, 其特征在于, 所述发送器还 用于:向所述用户设备发送调度命令,所述调度命令中包含所述第二 PHICH 资源集合中的 PHICH资源组内的正交序列索引, 以使得所述用户设备根据 所述正交序列索引, 确定所述 PHICH资源组内的 PHICH资源位置。
17、 根据权利要求 16所述的网络侧设备, 其特征在于, 所述处理器还 用于: 根据所述第二 PHICH资源集合中的 PHICH资源所在的 CCE索引、 PHICH 资源组号以及所述正交序列索引, 在所述应答子帧的第二 PHICH 资源集合中确定用于发送所述应答信息的 PHICH资源。
18、 一种用户设备, 其特征在于, 包括:
接收器, 用于接收网络侧设备发送的第一子帧配比信息和第二子帧配 比信息, 其中, 所述第一子帧配比信息和所述第二子帧配比信息所表示的 子帧配比不同;
发送器, 用于根据所述接收器接收的所述第二子帧配比信息, 向所述 网络侧设备发送上行数据;
处理器, 用于根据为所述接收器接收的所述第二子帧配比信息设置的 第二定时关系以及发送所述上行数据的子帧, 确定所述上行数据的应答子 帧;
所述接收器还用于: 若所述处理器确定的所述应答子帧为存在第一物 理层混合自动重传请求指示信道 PHICH资源集合的子帧,则利用所述第一 PHICH 资源集合中的 PHICH 资源接收所述网络侧设备发送的应答信息, 若所述处理器确定的所述应答子帧为不存在第一 PHICH资源集合的子帧, 则利用预留的第二 PHICH资源集合中的 PHICH资源接收所述网络侧设备 发送的应答信息; 其中, 所述存在第一 PHICH资源集合的子帧由所述处理 器根据为所述第一子帧配比设置的第一定时关系确定。
19、 根据权利要求 18所述的用户设备, 其特征在于, 所述接收器接收 到的第一子帧配比信息与用户设备接入的第一服务小区对应, 所述接收器 接收到的第二子帧配比信息与所述用户设备接入的第二服务小区对应; 所述发送器具体用于: 在所述第二服务小区上向所述网络侧设备发送 所述上行数据;
所述接收器具体用于: 在所述第一服务小区上接收所述网络侧设备发 送的所述应答信息。
20、 根据权利要求 18所述的用户设备, 其特征在于, 所述接收器接收 的所述第一子帧配比信息和所述第二子帧配比信息对应用户设备接入的同 一服务小区; 其中,
所述接收器接收的所述第一子帧配比信息和所述第二子帧配比信息均 不包含灵活子帧信息; 或者,
所述接收器接收的所述第一子帧配比信息不包含灵活子帧信息, 所述 接收器接收的所述第二子帧配比信息包含灵活子帧信息。
21、 根据权利要求 18-20任意一项所述的用户设备, 其特征在于, 所 述接收器还用于:接收所述网络侧设备发送的携带所述第二 PHICH资源集 合中 PHICH资源所在的 CCE索引以及 PHICH资源组号的信令,其中,所 述信令为无线资源控制 RRC信令和 /或媒体接入控制 MAC信令;
所述处理器还用于: 根据所述 CCE索引以及所述 PHICH资源组号, 确定所述应答子帧中的所述第二 PHICH资源集合中的 PHICH资源组的位 置。
22、 根据权利要求 21所述的用户设备, 其特征在于, 所述接收器还用 于: 接收所述网络侧设备发送的调度命令, 所述调度命令中包含所述第二 PHICH资源集合中的 PHICH资源组内的正交序列索引;
所述处理器还用于: 根据所述正交序列索引, 确定所述 PHICH资源组 内的 PHICH资源位置。
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