WO2010083782A1 - 资源分配及确认信息处理的方法及装置 - Google Patents

资源分配及确认信息处理的方法及装置 Download PDF

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Publication number
WO2010083782A1
WO2010083782A1 PCT/CN2010/070352 CN2010070352W WO2010083782A1 WO 2010083782 A1 WO2010083782 A1 WO 2010083782A1 CN 2010070352 W CN2010070352 W CN 2010070352W WO 2010083782 A1 WO2010083782 A1 WO 2010083782A1
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WO
WIPO (PCT)
Prior art keywords
physical channel
information
area
ack
nack
Prior art date
Application number
PCT/CN2010/070352
Other languages
English (en)
French (fr)
Inventor
官磊
薛丽霞
曲秉玉
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
Priority to EP10733255.3A priority Critical patent/EP2387176B1/en
Priority to ES10733255.3T priority patent/ES2542971T3/es
Priority to RU2011135282/08A priority patent/RU2479137C1/ru
Priority to BRPI1007309-4A priority patent/BRPI1007309B1/pt
Priority to EP15154068.9A priority patent/EP2894806B1/en
Priority to US13/145,984 priority patent/US9219580B2/en
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Publication of WO2010083782A1 publication Critical patent/WO2010083782A1/zh
Priority to US14/951,059 priority patent/US9345005B2/en
Priority to US15/130,678 priority patent/US9768937B2/en
Priority to US15/702,459 priority patent/US10211962B2/en
Priority to US16/253,722 priority patent/US10686577B2/en
Priority to US16/888,064 priority patent/US20200295904A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0055—Physical resource allocation for ACK/NACK
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/1607—Details of the supervisory signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1854—Scheduling and prioritising arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829—Arrangements specially adapted for the receiver end
    • H04L1/1861—Physical mapping arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/12—Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16—Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18—Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1867—Arrangements specially adapted for the transmitter end
    • H04L1/1896—ARQ related signaling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • carrier aggregation techniques are employed in communication systems.
  • a plurality of branch carriers are specifically aggregated to support large bandwidth transmission, and each branch carrier can be backward compatible.
  • the user terminal can simultaneously receive or transmit signals of multiple carriers.
  • the communication between the user terminal and the base station generally adopts HARQ (Hybrid Automatic Repeat Request) technology in the process of transmitting/receiving data of each branch carrier. That is, the data of one transport block is coded and modulated, and after the receiver receives it, if the CRC (Cyclical Redundancy Check) check is passed, the decoding is considered correct, and an ACK (ACKnowledgement) message is fed back. If the CRC check fails, it is considered that the decoding is incorrect, and the NACK (Non-ACKnowledgement) message is fed back.
  • the corresponding ACK/NACK information may be collectively referred to as acknowledgment information, and the sender performs HARQ retransmission according to the received acknowledgment information. Wait for processing.
  • the Physical Downlink Control Channel is composed of a Control Channel Element (CCE).
  • CCE Control Channel Element
  • a physical control channel usually consists of 1, 2, 4 or 8 CCEs. In the case where there are multiple carriers, each carrier has its own HARQ process, and therefore, multiple uplink physical control channels may be required to transmit acknowledgement information.
  • the resources of the uplink carrier feedback ACK/NACK are reserved according to the number of CCEs of the largest control channel unit on the corresponding downlink carrier.
  • the carrier aggregation scheme is paired carrier aggregation, that is, the number of uplink and downlink carriers is equal, the reservation and mapping of ACK/NACK channel resources may follow the rule of single carrier.
  • the carrier aggregation scheme is unpaired carrier aggregation, especially when user-specific unpaired carrier aggregation, the reservation and mapping of ACK/NACK channel resources can no longer follow the rule of single carrier. Since the corresponding feedback channel cannot be determined, the ACK/NACK corresponding to the unpaired downlink carrier or the uplink carrier cannot be fed back. Summary of the invention
  • Embodiments of the present invention provide a method and apparatus for resource allocation and acknowledgment information processing to determine the location at which an ACK/NACK channel is transmitted or received.
  • a method for ACK/NACK channel resource allocation comprising:
  • a device for ACK/NACK channel resource allocation comprising:
  • a physical channel area determining module configured to determine one of a plurality of physical channel areas occupied by the ACK/NACK channel
  • a notification module configured to notify the user equipment by using the determined physical channel area information by using a signaling, so that the user equipment determines, in the physical channel area, a channel that receives or sends ACK/NACK information according to a mapping rule.
  • a method of confirming information processing including:
  • Obtaining physical channel area indication information where the indication information is used to indicate a physical channel area where an ACK/NACK channel is located in multiple physical channel areas;
  • a device for confirming information processing comprising:
  • a physical channel area acquiring module configured to acquire physical channel area indication information, where the indication information is used to indicate a physical channel area where an ACK/NACK channel is located in multiple physical channel areas;
  • the acknowledgment information processing module is configured to send or receive ACK/NACK information on the physical channel region where the ACK/NACK channel is located according to the physical channel region indication information acquired by the physical channel region obtaining module.
  • the present invention provides multiple objects through the embodiments of the present invention. Determining a physical channel region in the channel region, and determining the location of the ACK/NACK channel on the physical channel region according to the mapping rule, can implement flexible scheduling of the ACK/NACK channel, thereby making the unpaired uplink carrier or the unpaired downlink The ACK/NACK corresponding to the carrier can be fed back.
  • BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some implementations of the present invention. For example, other drawings may be obtained from those skilled in the art without any inventive labor.
  • FIG. 1 is a schematic diagram of carrier determination in an embodiment of the present invention
  • FIG. 2 is a schematic diagram of an ACK/NACK channel resource allocation process according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a process for processing a confirmation information according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of an LTE proprietary area in an embodiment of the present invention.
  • FIG. 5 is a schematic diagram of an LTE proprietary area and an LTE area according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram 1 of an application example in an embodiment of the present invention.
  • FIG. 7 is a schematic diagram 2 of an application example in an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of a scenario of cross ACK/NACK mapping in an embodiment of the present invention.
  • FIG. 9 is a schematic diagram of a scenario of non-crossing ACK/NACK mapping in an embodiment of the present invention.
  • FIG. 10 is a schematic diagram 3 of an application example in an embodiment of the present invention.
  • FIG. 11 is a schematic diagram of an apparatus for ACK/NACK channel resource allocation according to an embodiment of the present invention
  • FIG. 12 is a schematic diagram of a confirmation information processing apparatus in a user equipment according to an embodiment of the present invention
  • FIG. 13 is a schematic diagram of a network side acknowledgement information processing apparatus according to an embodiment of the present invention.
  • FIG. 14 is a schematic structural diagram of a base station device according to an embodiment of the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. example. 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.
  • the unpaired uplink carrier or the unpaired downlink carrier does not have its paired corresponding carrier feedback ACK/NACK information
  • feedback of the acknowledgement information of the unpaired carrier can be satisfied by increasing the resources in the paired carriers.
  • user 1 uses downlink carriers 1, 2 and uplink carrier 1.
  • the uplink carrier 1 and the downlink carrier 1 are paired carriers, and corresponding resources can be added to the uplink carrier 1 as a feedback region of the downlink carrier 2 (unpaired downlink carrier). That is, the paired downlink carriers are fed back in the original feedback region of their corresponding uplink carriers, and the non-paired downlink carriers are fed back in the newly added region of the paired uplink carriers.
  • the above method can be referred to.
  • the problem of ACK/NACK information feedback of the unpaired uplink carrier or the unpaired downlink carrier can be solved.
  • the feedback area is fixed, when resources are not used in the original feedback area, resources may be wasted and ACK/NACK resources cannot be flexibly scheduled.
  • the acknowledgment information is used to indicate whether the receiver correctly receives the transmission content sent by the sender.
  • the following uses ACK to indicate correct reception in the acknowledgment information
  • NACK indicates acknowledgment information. Error receiving.
  • the ACK and NACK are merely examples, and do not limit the scope of the present invention, and may be other confirmation information.
  • the corresponding acknowledgment information channel resource is a resource for transmitting acknowledgment information. In the following embodiments, the ACK/NACK channel resource is taken as an example for description, and details are not described herein.
  • the user equipment can determine, in the corresponding physical channel region, the channel that receives or sends the ACK/NACK information according to the mapping rule, and then sends or receives the ACK/NACK information on the physical channel of the physical channel region.
  • the corresponding physical channel area may include, for example, an original area and a current area.
  • the original area is mainly used for feedback of confirmation information in the original system
  • the current area is mainly used for feedback of confirmation information in the existing system compatible with the original system.
  • the original area and the current area may be specifically: an LTE area and an LTE-A proprietary area; or may be a non-CoMP (Coordinated multiple point) area and a CoMP area, and the corresponding CoMP area is only used for CoMP.
  • the ACK/NACK information sent by the user in the CoMP area may be modulated by a CoMP user-specific sequence; or may be a non-Relay area and a Relay area, where the Relay area is used.
  • Each area may also include one or more sub-areas.
  • one or more LTE-A proprietary sub-areas may also be included in the LTE-A proprietary area.
  • multiple physical channel regions may not overlap at all or may overlap partially.
  • original The area and the current area may be orthogonal (i.e., not overlapped at all), or may overlap, and so on.
  • the network side needs to configure/partition more than one physical channel area.
  • At least one physical channel region is used for feeding back acknowledgment information of the paired carriers, and at least one physical channel region is used for feeding back acknowledgment information of the unpaired carriers.
  • at least one physical channel region for feeding back the paired carrier acknowledgment information is exemplified by the original region, and at least one of the intra-area channel regions for feeding back the unpaired carrier acknowledgment information is illustrated by the current region. .
  • a physical channel region for feeding back paired carrier acknowledgment information is referred to as a first physical channel region
  • a physical channel region for feeding back unpaired carrier acknowledgment information is referred to as a second physics. Channel area.
  • the LTE-A proprietary area may also include an ACK/NACK channel corresponding to the CCE of the common search space in the LTE system, that is, the first 16 ACK/NACK channels of the ACK/NACK channel resource of the LTE, thereby improving the ACK/NACK channel. Utilization rate.
  • the above physical channel area may be placed on one or more carriers, and one physical channel area may be set on one carrier or across carriers. In the following embodiments, the setting of the physical channel area can be referred to the above description, and details are not described herein.
  • the process may specifically include:
  • Step 21 Determine one of the plurality of physical channel areas occupied by the ACK/NACK channel on the network side (such as a base station or the like).
  • the determined physical channel area may be an uplink physical channel area occupied by the uplink ACK/NACK channel, or may be a downlink physical channel area occupied by the downlink ACK/NACK channel; that is, the step may be applicable to both the uplink scenario and the uplink channel. Downstream scenario.
  • the LTE system and the LTE-A system are used as an example, for example, when the channel redundancy of the LTE area is relatively large, for example, the PDCCH on the pair of downlink carriers. If the CCE level is high or the load is small, and the current user's ACK/NACK mapping of the paired carriers does not collide, the current user may use the LTE area to perform ACK/NACK channel mapping, and notify the user by signaling; The channel redundancy is relatively small.
  • the current user may be determined to use LTE-A.
  • the proprietary area performs ACK/NACK channel mapping and notifies the user by signaling; when the LTE of the user unpaired carrier and the LTE-A proprietary area ACK/NACK mapping collide at the same time, the current user cannot be scheduled.
  • Step 22 Notify the user equipment of the determined physical channel area by using signaling.
  • the physical channel region where the ACK/NACK channel is located may be dynamically notified by using a bit or a scrambling code or the like; that is,
  • the physical channel area of the ACK/NACK information may be indicated or received by the user side by one or more bit information, and one or more bit information of the physical channel area indicating the user side receiving or transmitting the ACK/NACK information may be passed through the letter. Order to send to the user device.
  • one bit of the physical downlink control channel may be used to indicate two states (corresponding to two different physical channel region identifiers), and two bits for four states (corresponding to four different physical channel region identifiers) may dynamically notify the user of ACK/ The physical channel area of the NACK channel; after acquiring the lbit or 2 bit information, the user side may perform ACK/NACK information transmission or reception on the ACK/NACK channel included in the corresponding physical channel area;
  • the physical channel area of the ACK/NACK information is received or sent by the user side by using different scrambling codes, and the corresponding scrambling code of the physical channel area indicating that the user side receives or sends the ACK/NACK information is sent to the user equipment by signaling. .
  • the user may receive or send the ACK/NACK information by adding a new bit in the PDCCH.
  • Physical channel region or may also multiplex all or part of the states indicated by existing bits in the PDCCH to indicate a physical channel region where the user side receives or transmits ACK/NACK information; for example, the HARQ process in the PDCCH (mixed)
  • the adaptive retransmission request process is 3 bits. Specifically, all or part of the 8 states represented by the 3 bits may be multiplexed to indicate a physical channel region in which the user side receives or transmits ACK/NACK information.
  • the signaling for determining the physical area may be combined with other signaling in the physical control channel, where the physical control channel may be, for example, a PDCCH.
  • the signaling used to determine the physical region may be encoded in conjunction with the ACK/NACK indicator bits in the PDCCH.
  • the ACK/NACK indicator bit is a bit in the physical control channel indicating the ACK/NACK channel used.
  • eight ACK/NACK channels are configured in one physical channel region, and the ACK/NACK channel used by the user can be notified by at least three bits of ACK/NACK indication bits.
  • the ACK/NACK indicator bit may be implemented by adding a bit in the physical control channel, or by multiplexing other bits in the physical control channel. For example, by increasing the resource allocation granularity, the bit of the resource allocation field in the PDCCH may be Multiplexing is used as an ACK/NACK indicator bit.
  • the physical channel region may be a first physical channel region or a second physical channel region, and is preferably a second physical channel region.
  • the physical channel region determined by the user equipment may be notified with one or more states indicated by the ACK/NACK indicator bit. For example, when the ACK/NACK indication bit is 3 bits, the determined physical channel region may be represented by 000 as the first physical channel region, and 001 to 111 respectively represent one ACK/NACK channel in the second physical channel region.
  • the number of users that need to be fed back with acknowledgment information on the unpaired carrier is large.
  • the ACK/NACK channel in the second physical channel region may be insufficient.
  • the ACK/NACK indication may be utilized.
  • the bits are jointly encoded with the signaling used to determine the physical region, i.e., the determined physical channel region is notified by one or more states of the ACK/NACK indicating bits.
  • the first physical channel region may adopt an implicit mapping rule ij of CCE index.
  • one or more of the ACK/NACK indication bits are used to notify the current user that the ACK/NACK channel of the user is mapped to the first physical channel region by an implicit mapping rule of the PDCCH CCE index.
  • the signaling for determining the physical channel region and the other signaling in the physical control channel may be jointly coded, and the signaling for determining the physical region may be jointly encoded with the carrier indication bit.
  • the carrier indication bit is used to indicate a carrier scheduled by the current physical control channel. For example, if there are 4 PDSCH carriers, at least 2 bits of carrier indication bits are needed in the PDCCH to indicate which one of the 4 carriers is scheduled by the current PDCCH.
  • the carrier indication bit is 3 bits
  • the determined physical channel region can be indicated by the redundancy bit or the redundancy state in the carrier indication bit.
  • the CCE index implicit mapping rule may be adopted for the first physical channel region and the second physical channel region; or the first physical channel region adopts a CCE index implicit mapping rule, and the second physical channel region
  • the ACK/NACK indicator bit is used to indicate a specific ACK/NACK channel; or the first physical channel area adopts a CCE index implicit mapping rule, and the second physical channel area can be specifically configured by the upper layer semi-static signaling to the cross-carrier PDCCH indication. user.
  • the physical channel region determined by the user equipment can be notified by using the existing field in the physical control channel, thereby reducing the ACK/NACK.
  • Channel conflicts improve scheduling flexibility while saving signaling overhead.
  • the corresponding process of notifying the user equipment may be specifically sent through layer 1 signaling/layer 2 signaling (ie, L1/L2 signaling) or RRC (Radio Resource Control, radio resource control layer) signaling. Corresponding notification to notify the user equipment of the determined physical channel area.
  • layer 1 signaling/layer 2 signaling ie, L1/L2 signaling
  • RRC Radio Resource Control, radio resource control layer
  • the network side may further send the start offset information by using RRC signaling, to Determining a starting location of a physical channel region of the ACK/NACK information by a corresponding initial offset information, such as determining a starting location of the LTE region, or determining a starting location of the LTE-specific region (including determining LTE- A starting position of the proprietary sub-area). Since the start offset information is used to divide each physical channel region, the sending of the initial offset information may be performed after the initial transmission once, or in a relatively large period, or a non-periodic interval. .
  • the step of sending the RRC signaling to notify the user equipment of the start offset information may be completed before, during or before the above steps, and after the foregoing steps are performed once, the sending start offset information does not necessarily need to be performed once.
  • the mapping rule may be a combination of the initial offset information and the CCE (Control Channel Element) label to specify a channel (ie, ACK/NACK channel) to which the specific user side receives or transmits the ACK/NACK information.
  • the LTE-A proprietary area includes multiple LTE-A proprietary sub-areas
  • the LTE-A proprietary sub-areas, and the LTE area of the LTE system may partially overlap or completely overlap.
  • the plurality of regions (LTE regions or LTE-A proprietary sub-regions) may be partially overlapped or even overlapped by corresponding initial offset information.
  • the network side setting/dividing the physical channel area may be performed only once, or may be performed multiple times. When the execution is performed multiple times, it may be performed periodically or non-periodically. After the physical channel area is set/divided on the network side, the user equipment needs to be notified. The specific scheme of the notification is as described above. It is also possible that the network side and the user equipment know the division of the physical channel area, and it is not necessary to signal the user equipment again, and it is used according to the physical channel area known to both parties.
  • the network side can not only feedback the ACK/NACK information of the unpaired uplink carrier or the unpaired downlink carrier, but also flexibly specify the corresponding ACK/NACK channel for the user equipment.
  • the physical channel area can effectively improve the utilization of ACK/NACK channel resources, and can simultaneously reduce overhead and possible conflicts. By setting/dividing the physical channel area, the utilization of resources can be made more full and flexible.
  • the embodiment of the present invention further provides a solution for processing the acknowledgment information (ie, ACK/NACK information), and the solution may be implemented on the user equipment or the network side, which will be separately described below.
  • the process of the corresponding acknowledgment information processing may include: acquiring the physical channel area indication information, where the corresponding indication information is used to indicate the physical channel area where the ACK/NACK channel is located in the multiple physical channel areas;
  • the area indication information is that the ACK/NACK information is transmitted or received on the physical channel area where the ACK/NACK channel is located.
  • the corresponding multiple physical channel regions may be, for example, as described above, and are not described herein again.
  • the process may specifically include:
  • Step 31 Obtain physical channel area indication information.
  • the user equipment may specifically, but not limited to, acquire physical channel area indication information for receiving or transmitting ACK/NACK information by using one or more bit information in the physical downlink control channel.
  • the user equipment may also obtain the physical channel area indication information of the ACK/NACK information received or sent by using the scrambling code in the physical downlink control channel; or the user equipment may receive and acquire the corresponding physical channel through other high layer signaling.
  • Area indication information such as RRC signaling.
  • Step 32 Determine a channel used for sending or receiving ACK/NACK information
  • the channel used for transmitting or receiving the ACK/NACK information may be determined in the physical channel region indicated by the physical channel region indication information according to the set mapping rule.
  • the ACK/NACK channel used by the user side to receive or send the ACK/NACK information is determined according to the set mapping rule, so that the user side determines the specific channel to perform ACK in the physical channel area.
  • the reception or transmission of the /NACK information; the corresponding mapping rule stipulates the principle of selecting the channel used for transmitting or receiving the ACK/NACK information in the physical channel area.
  • the corresponding mapping rule may be: Start offset information and CCE
  • the label is combined with the channel used by the specified user equipment to receive or transmit ACK/NACK information.
  • the user 1 may use the uplink carrier 1 and the downlink carrier 1 and the downlink carrier 2, and the specific starting offset information is 16, and the CCE label to be fed back on the downlink carrier 2 is 20, 21, 22, and 23, respectively.
  • the minimum CCE label is combined with the start offset information, and the 36th (20+16) ACK/NACK channels in the corresponding physical channel region are fed back.
  • the channel for receiving or transmitting the ACK/NACK information application may be determined in different channels of the LTE-A proprietary sub-area or the LTE region according to different mapping rules.
  • the mapping rule further includes using the ACK/NACK channel indicated by the ACK/NACK indicator bit according to the ACK/NACK indicator bit.
  • Step 33 Perform transmission or reception processing of the corresponding ACK/NACK information by using the determined channel for transmitting or receiving the ACK/NACK information.
  • the user equipment can learn the channel used by the ACK/NACK information to transmit or receive the corresponding ACK/NACK information, and implement the unpaired uplink carrier or the non-pair.
  • ACK/NACK information feedback corresponding to paired downlink carriers, and flexible scheduling ACK/NACK channel.
  • the process of the corresponding acknowledgment information processing may include: the network side locally obtains the physical channel area indication information, and the corresponding indication information indicates the physical channel area where the ACK/NACK channel is located in the multiple physical channel areas;
  • the channel area indication information transmits or receives ACK/NACK information on a physical channel area where the ACK/NACK channel is located.
  • the process of the acknowledgment information processing performed by the network side may be specifically performed in the base station, that is, the base station locally obtains physical channel area indication information for receiving or transmitting ACK/NACK information, and sends or receives a corresponding ACK according to the physical channel area indication information. NACK information.
  • the network side may further include an operation of determining a channel of a physical channel region used for receiving or transmitting ACK/NACK information in the process of transmitting or receiving ACK/NACK information on a physical channel region where the ACK/NACK channel is located. Specifically, the network side may determine, according to different mapping rules, channels for receiving or transmitting ACK/NACK information in different LTE-A proprietary sub-areas or multiple channels included in the LTE area, and corresponding mapping rules are agreed. The principle of selecting a channel to use for transmitting or receiving ACK/NACK information in the physical channel region.
  • the process of confirming the information processing is implemented by the above network, and the network side can determine the channel for which the ACK/NACK information is transmitted or received, so as to perform the receiving or transmitting operation of the corresponding ACK/NACK information.
  • the step of the user equipment learning the location of the first physical channel area and the second physical channel area divided by the network side may also be included.
  • the step can be implemented, for example, by receiving the initial offset information, and the user equipment can learn the starting point of each physical channel region in the multiple physical channel regions according to the starting offset information, so that the location of each physical channel region can be determined. .
  • a process of allocating ACK/NACK channel resources and receiving or transmitting ACK/NACK information on the network side, and a process of receiving or transmitting ACK/NACK information by the user equipment are provided, which will be separately described below.
  • LTE-A proprietary areas may be introduced. Domain (may include multiple LTE-A proprietary sub-areas). The number of specifically introduced LTE-A proprietary areas can be configured by higher layer signaling.
  • the number of ACK/NACK channels in the LTE region is N (ie, an ACK/NACK channel labeled 0 to N-1), among the N ACK/NACK channels, the first 16 ACK/NACK channels The labels are 0 to 15, and the 16 ACK/NACK channels are ACK/NACK channels corresponding to CCEs in the common search space.
  • the number of ACK/NACK channels in the LTE-A private area is set to M, and the LTE-A private area may include 16 ACK/NACK channels corresponding to the common search space CCE in the LTE area (ie, ACK/NACK labeled 0 to 15) Channel), where the number of the 16 ACK/NACK channels is 0 to 15 for users mapped to the ACK/NACK area of LTE, and 16 ACK/NACK for users mapped to the LTE-A proprietary area
  • the label of the channel is N+M-16 to N+M-1, that is, the number of LTE/A proprietary area ACK/NACK channels is guaranteed to be M.
  • the ACK/NACK channel corresponding to the unpaired downlink carrier can be mapped to the configured LTE-A proprietary area (including multiple LTE-A proprietary Within the sub-area, the ACK/NACK corresponding to the paired downlink carriers is still mapped into the physical channel area (ie, LTE area) reserved for the LTE/NACK reserved by the corresponding LTE system according to the rules of the LTE system.
  • corresponding start offset information may also be introduced, as shown in FIG. 5, by using the start offset.
  • the information divides the corresponding LTE-A proprietary area into multiple LTE-A proprietary sub-areas, and each LTE-A proprietary sub-area corresponds to each unpaired downlink carrier, and different starting offset information
  • the setting can make multiple LTE-A proprietary sub-areas completely non-overlapping, completely overlapping (all starting offsets are the same) or partially overlapping.
  • the ACK/NACK channel corresponding to the downlink carrier may fall within the LTE area or the LTE-A proprietary area reserved by the LTE system by using the corresponding initial offset information, and if it falls in the LTE area reserved by the LTE system, The redundant ACK/NACK channel in the LTE region can be fully utilized, and the resource reservation amount of the LTE-A proprietary area can be reduced.
  • the network side sends the ACK/NACK information in the allocated physical channel area, and notifies the user equipment of the physical channel area for transmitting the ACK/NACK information allocated to the user equipment and the network side, and the network side is still the user.
  • the network side may notify the user equipment in the process of notifying the user equipment of the physical channel area of the ACK/NACK information that is allocated by the user equipment and the network side, and may specifically use one bit in the PDCCH (Physical Downlink Control Channel).
  • PDCCH Physical Downlink Control Channel
  • the mapping region indicating the ACK/NACK channel is: LTE region, or LTE-A proprietary region.
  • the physical channel region where the uplink or downlink ACK/NACK channel is located is determined by the user equipment by using the 1 bit information, and then the physical channel region where the ACK/NACK channel used for receiving or transmitting the ACK/NACK information is determined is determined.
  • the ACK/NACK channel mapping of the downlink carrier (paired downlink carrier) corresponding to the uplink carrier maintains the same rules as the LTE system, but for the other two.
  • the mapping between the PDCCH and the ACK/NACK of the downlink carrier may determine the corresponding ACK/NACK channel by using the CCE label and the initial offset information mapping of the PDCCH on the corresponding downlink carrier, where
  • the offset information may determine that the physical channel region where the ACK/NACK channel is located is an LTE region, or, specifically, which LTE-A proprietary sub-region, the corresponding CCE label may determine that the ACK/NACK channel is in the corresponding LTE region or The specific location in the LTE-A proprietary sub-area.
  • other mapping rules may also be used to determine the corresponding ACK/NACK channel.
  • the mapping process of the corresponding ACK/NACK channel may be performed by adding lbit (ie, two states, state 0 and state 1) to the PDCCH.
  • the mapping rule of the LTE system may be adopted, that is, the ACK/NACK channel label corresponds to the minimum CCE index (CCE index) of the PDCCH.
  • a new mapping rule can be introduced for the ACK/NACK resource mapping on the unpaired downlink carriers (CC1 and CC2), and the lbit in the PDCCH on the carrier is used as an indication, including:
  • the ACK/NACK channel of the downlink carrier PDCCH adopts an ACK/NACK channel corresponding to the CCE index of the downlink carrier PDCCH;
  • the lbit in the PDCCH can be used to indicate the location of the two ACK/NACK channels, and the mapping rule uses the CCE index of the downlink carrier PDCCH; when the unpaired downlink carrier is used
  • the PDCCH is composed of 4 CCEs
  • 1 bit in the PDCCH can be used to indicate the positions of two ACK/NACK channels, and the second and fourth CCE indexes of the 4 CCEs are used to map the ACK/NACK channel, thereby reducing the The collision probability of the corresponding ACK/NACK channel resource in the paired carrier
  • the rules are as follows:
  • the two CCE indexes selected at this time may be 8 CCEs. Any of the second, fourth, sixth, and eight CCE indexes Two CCE indices are used to map the ACK/NACK channel.
  • the embodiment of the present invention can be applied to the determination of the uplink ACK/NACK channel, and can also be applied to the dynamic indication of the downlink ACK/NACK channel, for example, one specific bit in the PDCCH, and can also be used for indication.
  • the specific mapping area of the downlink ACK/NACK, and then the corresponding downlink ACK/NACK channel, is determined, and the specific implementation process is similar to the foregoing process.
  • the network side may notify the user equipment in the process that the user equipment and the physical channel area allocated by the network side to send the ACK/NACK information are all notified to the user equipment, and may also dynamically indicate the physical channel where the ACK/NACK channel is located by using multiple bits in the PDCCH. In the case of a region, for example, two bits in the PDCCH are used to dynamically indicate the physical channel region in which the four ACK/NACK channels are located, and the like.
  • the corresponding The starting offset needs to notify the user equipment; for example, the corresponding starting offset information may be broadcasted on the corresponding downlink carrier; or all the starting offset information may be broadcasted on the paired carriers, and may be combined with LTE- A proprietary ACK/NACK channel resource reservation uses a signaling bearer; or it may be carried in the PDCCH, and the initial bit information is represented by an existing bit field, such as HARQ pr 0CeSS , MCS (modulation coding mode) Wait.
  • an existing bit field such as HARQ pr 0CeSS , MCS (modulation coding mode) Wait.
  • the user equipment receives the indication information of the physical channel area sent by the network side, and receives or sends the ACK/NACK information according to the corresponding indication information;
  • the user equipment receives the indication information sent by the network side, and determines, according to the indication information, a physical channel area that is sent by the network side to the user equipment and the network side to send ACK/NACK information, and then may be in the corresponding physical channel area.
  • the ACK/NACK channel in which the user equipment receives or sends the ACK/NACK information is determined according to the corresponding mapping rule, and then the ACK/NACK information is received or sent through the corresponding ACK/NACK channel.
  • the implementation scheme of the area for dynamically notifying the ACK/NACK specific mapping provided by the foregoing Embodiment 1 can also be extended to the ACK/NACK transmission in the CoMP (Coordinated Multipoint) system.
  • the corresponding physical channel regions in the CoMP system include: a CoMP region and a non-CoMP region.
  • the CoMP area can be used as a scenario for cross-ACK/NACK mapping, or as a scenario for non-cross-ACK/NACK mapping, that is, ACK on a pair of downlink carriers.
  • non-CoMP areas or CoMP areas can also be dynamically selected.
  • the corresponding network side allocates ACK/NACK channel resources and receives or transmits
  • the process of processing the ACK/NACK information and the process of receiving or transmitting the ACK/NACK information by the user equipment are similar to the process described in the first embodiment, and the description will not be repeated.
  • the embodiment of the present invention extends to an ACK/NACK channel indication scenario between multiple subframes, that is, solves the problem of flexible indication and collision of ACK/NACK channels between multiple subframes.
  • the PDCCH may include lbit information to indicate an ACK/NACK channel between the two subframes.
  • all the PDCCHs of one user equipment are placed on a certain downlink carrier (the following line primary carrier), and the current subframe data and PDCCH may be In the same subframe, but the indicated data of other carriers and its corresponding PDCCH need to be delayed by one subframe, see the position indicated by the arrow in downlink carrier 1 and downlink carrier 2 in FIG. 10, and uplink ACK/NACK feedback. It is transmitted in the 4th subframe after the corresponding data channel.
  • the PDCCH of the same user equipment is transmitted in one subframe, and the uplink ACK/NACK channel is fed back in different subframes, so that the ACK/NACK corresponding to the PDCCH of the next subframe may be There is a conflict.
  • the LTE-A-specific area may be reserved in the uplink subframe, and the user equipment is notified by using the indication manner in the processing scheme provided by the embodiment of the present invention, such as the indication manner described in the first embodiment.
  • the location of the specific ACK/NACK channel in the above case that is, the location of the specific ACK/NACK channel indicated in the LTE region or the LTE-A proprietary region.
  • the LTE/A proprietary area is introduced, so that the ACK/NACK information corresponding to the unpaired uplink carrier or the unpaired downlink carrier can be implemented, and the ACK/NACK resource reservation is performed.
  • a trade-off between overhead and ACK/NACK resource mapping conflicts can be achieved, and ACK/NACK performance loss due to inter-cell interference can be mitigated.
  • the initial offset information is introduced, so that the ACK/NACK channel resources can be flexibly scheduled to a greater extent.
  • the The offset information selects the physical channel region in the LTE region, fully utilizes the redundancy of the ACK/NACK channel in the LTE region, reduces resource reservation in the LTE-A proprietary region, and improves the utilization of the ACK/NACK channel. Moreover, in the embodiment of the present invention, since the LTE/A proprietary area includes the ACK/NACK channel corresponding to the CCE in the common search space, the utilization of the ACK/NACK channel is further improved.
  • the embodiment of the present invention may further reserve one LTE-A proprietary area (or LTE-A dedicated sub-area) for each unpaired downlink carrier of the user, so as to reduce the collision of the ACK/NACK channel.
  • the present invention the ACK/NACK resource can also be dynamically released for data transmission by using different physical channel area allocations; for example, when there are few LTE users or the redundancy in the LTE area is large, the ACK/ can be dynamically adjusted.
  • the NACK channel is mapped into the LTE area. At this time, the reserved LTE-A proprietary area resources can be released for data channel transmission.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).
  • the embodiment of the present invention further provides a device for channel resource allocation, which may be specifically configured on a network side, such as a base station. As shown in FIG. 11, the method may include:
  • the physical channel area determining module 901 is configured to determine one physical channel area of the multiple physical channel areas occupied by the ACK/NACK channel, that is, select one physical channel area occupied by one ACK/NACK channel among the multiple physical channel areas, corresponding
  • the physical channel region includes an uplink channel or a downlink physical channel region;
  • the notification module 902 is configured to notify the user equipment of the physical channel area determined by the physical channel area determining module 901, so that the user equipment can determine to receive or send ACK/NACK information in the physical channel area according to the set mapping rule.
  • the channel used; specifically, the notification module 902 can, but is not limited to, notify the user side of the corresponding physical channel area by layer 1 signaling/layer 2 signaling or radio resource control layer RRC signaling.
  • the physical channel area in the information of the physical channel area sent by the corresponding notification module 902 may include an LTE area and an LTE-A proprietary area, and the corresponding LTE-A proprietary area may further include multiple LTE-A proprietary sub-parts.
  • the area, and the LTE-A proprietary area may also include an ACK/NACK channel corresponding to a common search space CCE in the LTE system; or, the corresponding physical channel area may include a COMP area and a non-COMP area, and the like.
  • the corresponding notification module 902 may specifically, but not limited to, indicate a physical channel region that receives or sends ACK/NACK information by the user side through one or more bit information in the physical downlink control channel; or may also load different PDCCH channels.
  • the scrambling code indicates a physical channel area where the user side receives or transmits ACK/NACK information, and the like.
  • the corresponding notification module 902 is further configured to send, by using RRC signaling, start offset information to the user equipment, where the corresponding start offset information may be used to determine a starting point of the physical channel region, according to the predetermined mapping.
  • the start offset information may be specifically used to be combined with the control channel unit CCE label to indicate that the user side receives or sends the multiple channels included in the physical channel region that receives or sends the ACK/NACK information on the user side. Channel used by ACK/NACK information.
  • the apparatus may further include: a physical channel area dividing module, configured to divide the at least one first physical channel area and the at least one second physical channel area, where the first physical channel area includes a pair of carriers for transmitting A confirmation information channel of the confirmation information, the second physical channel region including an acknowledgement information channel for transmitting acknowledgement information of the unpaired carrier.
  • a physical channel area dividing module configured to divide the at least one first physical channel area and the at least one second physical channel area, where the first physical channel area includes a pair of carriers for transmitting A confirmation information channel of the confirmation information, the second physical channel region including an acknowledgement information channel for transmitting acknowledgement information of the unpaired carrier.
  • the embodiment of the present invention also provides an apparatus for confirming information processing, which may be specifically configured in a user equipment.
  • the corresponding implementation structure is as shown in FIG. 12, and may include:
  • the physical channel area obtaining module 1001 is configured to obtain physical channel area indication information, where the corresponding indication information is used to indicate a physical channel area where the ACK/NACK channel is located in the multiple physical channel areas, where the corresponding physical channel area is specific
  • the physical channel region obtaining module 1001 may obtain physical channel region indication information of the ACK/NACK channel by using one or more bits in the downlink physical control channel; or may obtain an ACK/NACK channel by using a scrambling code in the downlink physical control channel.
  • the physical channel area indication information, or the corresponding physical channel area indication information may be acquired in other manners.
  • the acknowledgment information processing module 1002 is configured to: according to the physical channel area obtaining module 1001, obtain the physical channel area indication information, and send or receive ACK/NACK information on the physical channel area where the corresponding ACK/NACK channel is located;
  • the corresponding acknowledgment information processing module 1002 may be further configured to determine a channel in a physical channel region occupied by the ACK/NACK channel, and is specifically configured to be included in different LTE-A proprietary sub-areas or LTE regions according to different mapping rules. Among the plurality of channels, a channel for receiving or transmitting an ACK/NACK information application is determined.
  • the corresponding physical channel region may specifically include an LTE region and an LTE-A proprietary region; or may include a COMP region and a non-COMP region.
  • the corresponding LTE-A proprietary area includes a plurality of LTE-A proprietary sub-areas, and the corresponding LTE-A proprietary area may further include an ACK/NACK channel corresponding to the common search space CCE in the LTE system.
  • the embodiment of the present invention also provides an apparatus for confirming information processing, which may be specifically configured on a network side, such as a base station.
  • a network side such as a base station.
  • the corresponding implementation structure is as shown in FIG.
  • the physical channel area obtaining module 1101 is configured to obtain physical channel area indication information, where the corresponding indication information is used to indicate a physical channel area where the ACK/NACK channel is located in the multiple physical channel areas, where The physical channel area may be a physical channel area where the uplink ACK/NACK channel is located or a physical channel area where the downlink ACK/NACK channel is located.
  • the physical channel area acquiring module 1101 may specifically obtain corresponding physical channel area indication information locally.
  • the acknowledgment information processing module 1102 is configured to: according to the physical channel area acquiring module 1101, obtain the physical channel area indication information, and send or receive ACK/NACK information on the physical channel area where the corresponding ACK/NACK channel is located;
  • the corresponding acknowledgment information processing module 1102 may be specifically configured to determine a channel in a physical channel region occupied by an ACK/NACK channel, and is specifically configured to be included in different LTE-A proprietary sub-areas or LTE regions according to different mapping rules. Among the plurality of channels, a channel for receiving or transmitting an ACK/NACK information application is determined.
  • the corresponding physical channel region may specifically include an LTE region and an LTE-A proprietary region; or may include a COMP region and a non-COMP region.
  • the corresponding LTE-A proprietary area includes a plurality of LTE-A proprietary sub-areas, and the corresponding LTE-A proprietary area may further include an ACK/NACK channel corresponding to the common search space CCE in the LTE system.
  • the embodiment of the present invention further provides a base station, and the specific implementation structure is as shown in FIG. 14 , and specifically includes the physical channel area determining module 901 , the notification module 902 , the physical channel area acquiring module 1101 , and the confirmation information processing module 1102 .
  • the corresponding physical channel area obtaining module 1101 acquires the physical channel area indication information determined by the physical channel area determining module 901. The functional roles of the various modules have been previously described, and the description will not be repeated here.
  • the device for the channel resource allocation and the device for confirming the information processing can implement feedback of the ACK/NACK message corresponding to the unpaired uplink carrier or the downlink carrier, effectively improve the utilization of the ACK/NACK channel, and improve the ACK/NACK resource scheduling. Flexibility and reduces the possibility of collisions on the ACK/NACK channel.

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Description

资源分配及确认信息处理的方法及装置 本申请要求于 2009年 1月 24日提交中国专利局、 申请号为 CN200910105293.9、 发明名称为 "一种发射、接收方法、装置"的中国专利申请的优先权， 以及于 2009年 4 月 14日递交中国专利局， 申请号为 CN200910130084.X、 发明名称为 "ACK/NACK信 道资源分配及确认信息处理的方法及装置"的中国专利申请的优先权， 其全部内容通过 引用结合在本申请中。 技术领域 本发明涉及通信技术领域， 尤其涉及一种资源分配及确认信息处理的技术。 背景技术 为了考虑支持更宽带宽， 以达到峰值速率的要求， 在通信系统中采用了载波聚合技 术。在载波聚合技术中， 具体是将多个分支载波聚合起来以支持大带宽传输， 并且每个 分支载波可以是后向兼容的。根据用户终端的能力， 用户终端可以同时接收或者发送多 个载波的信号。
用户终端和基站的通信， 在每个分支载波的数据的发送 /接收过程中， 通常采用 HARQ (Hybrid Automatic Repeat Request, 混合自动重传请求）技术。 即一个传输块的 数据， 进行编码调制后发送， 接收方接收到后， 如果 CRC (Cyclical Redundancy Check, 循环冗余）校验通过， 则认为译码正确， 反馈 ACK (ACKnowledgement, 确认） 消息， 如果 CRC校验不通过， 则认为译码不正确， 就反馈 NACK (Non-ACKnowledgement， 不确认） 消息， 相应的 ACK/NACK信息可以统称为确认信息， 发送方根据接收到的确 认信息进行 HARQ重传等处理。
多个载波的数据发送 /接收， 采用每个载波独立的 HARQ过程。 在发送数据时例如 可以通过物理共享信道， 在发送控制信息时例如可以通过物理控制信道。物理下行控制 信道（Physical Downlink Control Channel, PDCCH) 由控制信道单元（Control Channel Element, CCE)组成。 一个物理控制信道通常由 1、 2、 4或 8个 CCE组成。 在存在多 个载波的情况下， 每个载波有独自的 HARQ过程， 因此， 可能需要多个上行物理控制 信道发送确认信息。
在单载波的情况下， 上行载波反馈 ACK/NACK的资源是根据对应的下行载波上最 大的控制信道单元的 CCE个数进行预留。 在载波聚合的方案为成对载波聚合时， 即上下行载波数相等， 则 ACK/NACK信道 资源的预留和映射可以沿用单载波的规则。但是， 当载波聚合的方案为非成对载波聚合 时， 尤其是用户特定非成对载波聚合时， ACK/NACK信道资源的预留和映射无法再沿 用单载波的规则了。 由于无法确定相应的反馈信道， 所以无法反馈非成对下行载波或者 上行载波对应的 ACK/NACK。 发明内容
本发明的实施例提供了一种资源分配及确认信息处理的方法及装置， 以确定发送或 接收 ACK/NACK信道的位置。
一种 ACK/NACK信道资源分配的方法， 包括：
确定 ACK/NACK信道占用的多个物理信道区域中的一个物理信道区域， 通过信令 将所述确定的物理信道区域信息通知用户设备，用于所述用户设备根据映射规则在所述 确定的物理信道区域中确定接收或发送 ACK/NACK信息的信道。
一种 ACK/NACK信道资源分配的装置， 包括：
物理信道区域决定模块， 用于确定 ACK/NACK信道占用的多个物理信道区域中的 一个物理信道区域；
通知模块， 用于通过信令将所述确定的物理信道区域信息通知用户设备， 使得所述 用户设备根据映射规则在所述物理信道区域中确定接收或发送 ACK/NACK信息的信 道。
一种确认信息处理的方法， 包括：
获取物理信道区域指示信息， 所述指示信息用于指示多个物理信道区域中 ACK/NACK信道所在的物理信道区域；
根据所述物理信道区域指示信息， 在所述 ACK/NACK信道所在物理信道区域上发 送或接收 ACK/NACK信息。
一种确认信息处理的装置， 包括：
物理信道区域获取模块， 用于获取物理信道区域指示信息， 所述指示信息用于指示 多个物理信道区域中 ACK/NACK信道所在的物理信道区域；
确认信息处理模块，用于根据所述物理信道区域获取模块获取的物理信道区域指示 信息， 在所述 ACK/NACK信道所在物理信道区域上发送或接收 ACK/NACK信息。
由上述本发明的实施例提供的技术方案可以看出，通过本发明实施例提供在多个物 理信道区域中确定一个物理信道区域， 并根据映射规则在该物理信道区域上确定 ACK/NACK信道的位置，可以实现 ACK/NACK信道的灵活调度，从而使得非成对上行 载波或者非成对下行载波对应的 ACK/NACK能够反馈。 附图说明 为了更清楚地说明本发明实施例的技术方案，下面将对实施例描述中所需要使用的 附图作简单地介绍， 显而易见地， 下面描述中的附图仅仅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为本发明实施例中载波确定示意图；
图 2为本发明实施例提供的 ACK/NACK信道资源分配过程示意图；
图 3为本发明实施例提供的确认信息处理处理过程示意图；
图 4为本发明实施例中 LTE专有区域的示意图；
图 5为本发明实施例中 LTE专有区域和 LTE区域的示意图；
图 6为本发明实施例中的应用实例示意图一；
图 7为本发明实施例中的应用实例示意图二；
图 8为本发明实施例中的交叉 ACK/NACK映射的场景示意图；
图 9为本发明实施例中的非交叉 ACK/NACK映射的场景示意图；
图 10为本发明实施例中的应用实例示意图三；
图 11为本发明实施例提供的 ACK/NACK信道资源分配的装置示意图； 图 12为本发明实施例提供的用户设备中的确认信息处理装置示意图；
图 13为本发明实施例提供的网络侧的确认信息处理装置示意图；
图 14为本发明实施例提供的基站设备的结构示意图。 具体实施方式 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， 所描述的实施例仅仅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。
为使本发明的目的、技术方案和优点更加清楚， 下面将结合附图对本发明实施例作 进一步地详细描述。
由于非成对上行载波或者非成对下行载波没有其成对的对应载波反馈 ACK/NACK 信息，所以可以通过增加成对载波中的资源以满足非成对载波的确认信息的反馈。例如， 参照图 1所示，用户 1采用下行载波 1、 2和上行载波 1。上行载波 1和下行载波 1为成 对的载波， 可以在上行载波 1上增加相应的资源， 作为下行载波 2 (非成对下行载波） 的反馈区域。 即， 成对下行载波在其对应的上行载波的原反馈区域中反馈， 而非成对下 行载波在成对上行载波的新增区域中反馈。 针对非成对上行载波， 可以参照上述方法。
通过上述方法， 可以解决非成对上行载波或者非成对下行载波的 ACK/NACK信息 反馈的问题。但是由于反馈区域被固定下来， 在原有反馈区域中未使用资源较多时， 可 能会造成资源浪费， 无法灵活的调度 ACK/NACK资源。
在本实施例和下述各实施例中，确认信息用于表示接收方是否正确接收发送方发送 的传输内容， 为了描述方便， 以下使用 ACK表示确认信息中的正确接收， NACK表示 确认信息中的错误接收。 ACK、 NACK仅为举例， 并不限制本发明的范围， 还可以是其 他的确认信息。相应的确认信息信道资源为用于传送确认信息的资源，下述各实施例中， 以 ACK/NACK信道资源为例进行说明， 之后不再赘述。
本发明实施例提供的信道资源分配方案中， 具体可以在网络侧确定 ACK/NACK信 道占用的多个物理信道区域中的一个物理信道区域后，通过信令将确定的物理信道区域 通知用户设备。以便于用户设备可以根据映射规则在相应的物理信道区域中确定接收或 发送 ACK/NACK 信息的信道， 进而在该物理信道区域的物理信道上发送或接收 ACK/NACK信息。
其中， 相应的物理信道区域例如可以包括： 原区域和现区域。其中原区域主要用于 原有系统中的确认信息反馈，而现区域主要用于可以兼容原有系统的现有系统中的确认 信息的反馈。其中， 原区域和现区域具体可以为： LTE区域和 LTE-A专有区域； 或者也 可以为非 CoMP( Coordinated multiple point,协作多点）区域和 CoMP区域，相应的 CoMP 区域为只用于 CoMP 用户发送 ACK/NACK信息的区域， 在 CoMP 区域中发送的 ACK/NACK信息可以采用 CoMP用户专有的序列来调制； 或者， 还可以为非 Relay (中 继）区域和 Relay区域， 其中 Relay区域用于中继站收发 ACK/NACK; 或者， 也可以采 用其他物理信道区域的区分方式等。其中，每个区域中还可以包括一个或者多个子区域， 例如 LTE-A专有区域中还可以包括一个或多个 LTE-A专有子区域。
本实施例中， 多个物理信道区域之间可以完全不重叠， 也可以部分重叠。 例如， 原 区域和现区域可以正交（也即完全不重叠）， 或是也可以重叠， 等等。
本实施例中，网络侧需要配置 /划分多于一个的物理信道区域。其中至少有一个物理 信道区域用于反馈成对载波的确认信息，且至少有一个物理信道区域用于反馈非成对载 波的确认信息。在上述描述中， 至少一个的用于反馈成对载波确认信息的物理信道区域 用原区域进行举例说明，至少一个的用于反馈非成对载波确认信息的区里信道区域用现 区域进行举例说明。 以下各实施例中， 为了描述简单， 将用于反馈成对载波确认信息的 物理信道区域称为第一物理信道区域，将用于反馈非成对载波确认信息的物理信道区域 称为第二物理信道区域。
LTE-A专有区域还可以包括 LTE系统中的公共搜索空间的 CCE对应的 ACK/NACK 信道， 即 LTE的 ACK/NACK信道资源的前 16个 ACK/NACK信道， 从而可以提高 ACK/NACK信道的利用率。 上述的物理信道区域可以放在一个或多个载波上， 一个物 理信道区域可以在一个载波上也可以跨载波设置。在下述各实施例中， 物理信道区域的 设置可以参照上述描述， 不再赘述。
下面将进一步描述本发明实施例提供的 ACK/NACK信道资源分配的过程， 如图 2 所示， 该过程具体可以包括：
步骤 21， 在网络侧（如基站等）确定 ACK/NACK信道占用的多个物理信道区域中 的一个物理信道区域。
确定的一个物理信道区域可以为上行 ACK/NACK信道占用的上行物理信道区域， 也可以为下行 ACK/NACK信道占用的下行物理信道区域； 也即， 该步骤既可以适用于 上行场景也可以适用于下行场景。
在多个物理信道区域中选择一个物理信道区域的过程中， 以 LTE系统和 LTE-A系 统为例，例如可以包括：当 LTE区域的信道冗余比较大时，例如成对下行载波上 PDCCH 的 CCE水平较高或负载较小， 且当前用户的成对载波的 ACK/NACK映射不发生冲突， 则可以确定当前用户使用 LTE区域进行 ACK/NACK信道映射， 并通过信令通知用户； 当 LTE区域的信道冗余比较小时， 例如成对下行载波上 PDCCH的 CCE水平较低或负 载较高， 且当前用户的非成对载波的 ACK/NACK映射不发生冲突， 则可以确定当前用 户使用 LTE-A专有区域进行 ACK/NACK信道映射， 并通过信令通知用户； 当用户非成 对载波的 LTE与 LTE-A专有区域 ACK/NACK映射同时发生冲突时，则不能对当前用户 进行调度。
步骤 22， 通过信令将确定的物理信道区域通知用户设备。 具体地， 可以采用比特或扰码等动态地通知用户 ACK/NACK信道所在的物理信道 区域； 即，
可以通过一个或多个比特信息指示用户侧接收或发送 ACK/NACK信息的物理信道 区域， 并将相应的指示用户侧接收或发送 ACK/NACK信息的物理信道区域的一个或多 个比特信息通过信令发送给用户设备。例如， 可以采用物理下行控制信道中的 lbit表示 2种状态（对应两个不同的物理信道区域标识）， 2bit表示 4种状态（对应四个不同的物 理信道区域标识）等动态地通知用户 ACK/NACK信道的物理信道区域； 用户侧获取该 lbit或 2bit信息后， 便可以在其所对应的物理信道区域包含的 ACK/NACK信道上进行 ACK/NACK信息发送或接收；
或者，
也可以通过不同的扰码指示用户侧接收或发送 ACK/NACK信息的物理信道区域， 并将相应的指示用户侧接收或发送 ACK/NACK信息的物理信道区域的扰码通过信令发 送给用户设备。
在上述处理过程中， 若通过一个或多个比特信息指示用户侧接收或发送 ACK/NACK信息的物理信道区域， 则具体可以采用 PDCCH中新增比特的方式指示用 户侧接收或发送 ACK/NACK信息的物理信道区域， 或者， 也可以复用 PDCCH中现有 的比特所表示的所有或部分状态来指示用户侧接收或发送 ACK/NACK信息的物理信道 区域； 例如， PDCCH中的表示 HARQ process (混合自适应重传请求进程） 的为 3比 特，具体可以复用这 3比特表示的 8种状态中的所有或部分几种状态来表示用户侧接收 或发送 ACK/NACK信息的物理信道区域。
或者， 用于确定物理区域的信令可以和物理控制信道中其他的信令进行联合的编 码， 其中该物理控制信道例如可以为 PDCCH。
例如， 用于确定物理区域的信令可以和 PDCCH中的 ACK/NACK指示比特进行联 合的编码。 其中 ACK/NACK指示比特为物理控制信道中， 指示使用的 ACK/NACK信 道的比特。 例如， 在一个物理信道区域中配置有 8个 ACK/NACK信道， 可以通过至少 3比特的 ACK/NACK指示比特通知用户所使用的 ACK/NACK信道。 其中 ACK/NACK 指示比特可以通过在物理控制信道中新增比特实现，也可以通过复用物理控制信道中的 其他比特实现， 例如通过增大资源分配粒度， 可以使得 PDCCH中资源分配字段的比特 被复用作为 ACK/NACK指示比特。 该物理信道区域可以为第一物理信道区域， 也可以 为第二物理信道区域， 优选的， 为第二物理信道区域。 可以用 ACK/NACK指示比特表示的一个或者多个状态通知用户设备确定的物理信 道区域。 例如， 在 ACK/NACK指示比特为 3比特时， 可以通过 000表示确定的物理信 道区域为第一物理信道区域， 用 001 至 111 分别表示第二物理信道区域中的 1 个 ACK/NACK信道。
特别是， 在非成对载波上同时调度的需要反馈确认信息的用户数较多， 例如超过 8 个， 则第二物理信道区域中的 ACK/NACK信道会不足， 此时可以利用 ACK/NACK指 示比特与用于确定物理区域的信令进行联合编码， 也即通过 ACK/NACK指示比特的一 个或者多个状态来通知确定的物理信道区域。 此外， 第一物理信道区域可以采用 CCE index的隐式映射规贝 ij。此时， ACK/NACK指示比特中的一个或者多个状态用来通知当 前用户，该用户的 ACK/NACK信道通过 PDCCH CCE index的隐式映射规则映射到第一 物理信道区域。
用于确定物理信道区域的信令与物理控制信道中其他的信令进行联合编码还可以 是， 用于确定物理区域的信令可以跟载波指示比特进行联合编码。 其中， 载波指示比特 用于指示当前物理控制信道调度的载波。 例如， 有 4个 PDSCH载波， 则 PDCCH中至 少需要 2比特的载波指示比特， 以表示当前 PDCCH调度的为 4个载波中的具体哪一个 载波。
假设载波指示比特为 3比特， 当前有 4个 PDSCH载波， 则会冗余一个比特或 2个 状态， 此时可以用载波指示比特中的冗余比特或者冗余状态指示确定的物理信道区域。 进一步的，在这个场景下，第一物理信道区域和第二物理信道区域均可以采用 CCE index 隐式映射规则； 或者， 第一物理信道区域采用 CCE index隐式映射规则， 而第二物理信 道区域采用 ACK/NACK指示比特指示具体的 ACK/NACK信道； 或者第一物理信道区 域采用 CCE index隐式映射规则， 而第二物理信道区域中可以通过高层半静态信令专门 配置给跨载波 PDCCH指示的用户。
通过将用于确定物理信道区域的信令与物理控制信道中的其他信令进行联合编码， 可以利用物理控制信道中已有的字段通知用户设备确定的物理信道区域，从而在降低了 ACK/NACK信道的冲突， 提高了调度的灵活性的同时， 节省了信令开销。
本发明实施例中， 相应的通知用户设备的处理过程中具体可以通过层 1 信令 /层 2 信令（即 L1/L2信令）或 RRC (Radio Resource Control, 无线资源控制层）信令发送相 应的通知， 以将确定的物理信道区域通知用户设备。
进一步地， 本发明实施例中， 网络侧还可以通过 RRC信令发送起始偏移信息， 以 通过相应的起始偏移信息指示接收或发送 ACK/NACK信息的物理信道区域的起始位 置，如确定 LTE区域的起始位置，或者，确定 LTE专有区域的起始位置（包括确定 LTE-A 专有子区域的起始位置）。 由于起始偏移信息用于划分各物理信道区域， 所以起始偏移 信息的发送可以是最初发送一次之后不再发送， 或者以比较大的周期发送， 或者非周期 的间隔时间较长的发送。 所以发送 RRC信令通知用户设备起始偏移信息的步骤可以在 上述步骤之前、 之中或者之前完成， 并且上述步骤执行一次后， 发送起始偏移信息并不 一定需要也执行一次。相应的， 映射规则可以为将该起始偏移信息与 CCE (控制信道单 元） 标号结合指定具体的用户侧接收或发送 ACK/NACK 信息应用的信道 （即 ACK/NACK信道）。 进一步地， 在 LTE-A专有区域包括多个 LTE-A专有子区域的情况 下， 各个 LTE-A专有子区域之间， 以及与 LTE系统的 LTE区域之间可以部分重叠或完 全重叠，具体可以通过相应的起始偏移信息使得多个区域（LTE区域或 LTE-A专有子区 域） 之间部分重叠甚至完成重叠。
本实施例中， 网络侧设置 /划分物理信道区域可以是仅执行一次， 也可以执行多次， 执行多次时，可以是周期性执行也可以非周期性执行。在网路侧设置 /划分物理信道区域 后需要通知用户设备， 通知的具体方案如上所述。还可以是网络侧与用户设备均知道物 理信道区域的划分， 则无需再信令通知用户设备， 按照双方均知道的物理信道区域使用 即可。
通过上述 ACK/NACK信道资源分配方案， 网络侧不仅可以实现非成对上行载波或 者非成对下行载波相应的 ACK/NACK信息的反馈， 还可以为用户设备灵活指定相应的 ACK/NACK信道所在的物理信道区域， 并可以有效提高 ACK/NACK信道资源的利用 率， 并可以同时降低开销和可能产生的冲突。通过设置 /划分物理信道区域， 可以使得资 源的利用更加充分、 灵活。 本发明实施例还提供了确认信息 （即 ACK/NACK信息） 处理的方案， 该方案具体 可以在用户设备或网络侧实现， 下面将分别进行说明。
(一） 在用户设备上实现确认信息处理的过程
在用户侧，相应的确认信息处理的过程具体可以包括：获取物理信道区域指示信息， 相应的指示信息用于指示多个物理信道区域中 ACK/NACK信道所在的物理信道区域； 用户设备根据物理信道区域指示信息， 在 ACK/NACK信道所在物理信道区域上发送或 接收 ACK/NACK信息。 其中， 相应的多个物理信道区域例如可以如前所述， 在此不再赘述。
下面将进一步描述本发明实施例提供的在用户设备上实现确认信息处理的过程，如 图 3所示， 该过程具体可以包括：
步骤 31， 获取物理信道区域指示信息；
在接收网络侧发送来的物理信道区域指示信息过程中，用户设备具体可以但不限于 通过物理下行控制信道中的一个或多个比特信息来获取接收或发送 ACK/NACK信息的 物理信道区域指示信息； 或者， 用户设备也可以通过物理下行控制信道中的扰码来获取 接收或发送 ACK/NACK信息的物理信道区域指示信息； 或者， 用户设备也可以通过其 他高层信令接收并获取相应的物理信道区域指示信息， 如 RRC信令等。
步骤 32， 确定发送或接收 ACK/NACK信息使用的信道；
具体地， 可以根据设定的映射规则， 在上述物理信道区域指示信息所指示的物理信 道区域中确定发送或接收 ACK/NACK 信息使用的信道， 即在用户设备接收或发送 ACK/NACK信息的物理信道区域包含的多个 ACK/NACK信道中，根据设定的映射规则 确定用户侧接收或发送 ACK/NACK信息使用的 ACK/NACK信道， 以便于用户侧在物 理信道区域中确定具体的信道进行 ACK/NACK信息的接收或发送； 相应的映射规则约 定了在物理信道区域中选择发送或接收 ACK/NACK信息使用的信道的原则， 例如， 相 应的映射规则可以为： 将起始偏移信息与 CCE 标号结合指定用户设备接收或发送 ACK/NACK信息使用的信道。例如，具体可以为，用户 1使用上行载波 1和下行载波 1、 下行载波 2， 具体起始偏移信息为 16， 下行载波 2上需要反馈的 CCE标号相应为 20、 21、 22、 23， 取最小的 CCE标号与起始偏移信息结合， 则取相应物理信道区域中第 36 (20+16) 个 ACK/NACK信道进行反馈。
进一步地， 还可以根据不同的映射规则， 在不同的所述 LTE-A专有子区域或 LTE 区域包含的多个信道中， 确定接收或发送 ACK/NACK信息应用的信道。
本实施例中， 该映射规则还包括根据 ACK/NACK指示比特， 使用该 ACK/NACK 指示比特指示的 ACK/NACK信道。
步骤 33， 通过确定的发送或接收 ACK/NACK 信息使用的信道， 进行相应的 ACK/NACK信息的发送或接收处理。
通过上述用户设备实现确认信息处理的过程， 用户设备便可以获知其发送或接收 ACK/NACK信息使用的信道，从而进行相应的 ACK/NACK信息的接收或发送操作， 实 现非成对上行载波或者非成对下行载波对应的 ACK/NACK信息反馈， 并能够灵活调度 ACK/NACK信道。
(二） 在网络侧实现确认信息处理的过程
在网络侧， 相应的确认信息处理的过程具体可以包括： 网络侧在本地获取物理信道 区域指示信息， 相应的指示信息指示了多个物理信道区域中 ACK/NACK信道所在的物 理信道区域； 根据物理信道区域指示信息， 在 ACK/NACK信道所在物理信道区域上发 送或接收 ACK/NACK信息。网络侧执行的确认信息处理的过程具体可以在基站中执行， 即基站在本地获取接收或发送 ACK/NACK信息的物理信道区域指示信息， 并根据该物 理信道区域指示信息发送或接收相应的 ACK/NACK信息。
网络侧执行在 ACK/NACK信道所在物理信道区域上发送或接收 ACK/NACK信息 的过程中， 还可以包括确定接收或发送 ACK/NACK信息所使用的物理信道区域的信道 的操作。具体地， 网络侧可以根据不同的映射规则， 在不同的 LTE-A专有子区域或 LTE 区域包含的多个信道中， 确定接收或发送 ACK/NACK信息应用的信道， 相应的映射规 则约定了在物理信道区域中选择发送或接收 ACK/NACK信息使用的信道的原则。
通过上述网络则实现确认信息处理的过程， 网络侧可以确定其发送或接收 ACK/NACK信息使用的信道， 以便于进行相应的 ACK/NACK信息的接收或发送操作。
本实施例中，还可以包括用户设备获知网络侧划分的第一物理信道区域和第二物理 信道区域的位置的步骤。 该步骤例如可以通过接收起始偏移信息实现， 用户设备可以根 据所述起始偏移信息获知所述多个物理信道区域中各物理信道区域的起始点，从而可以 确定各物理信道区域的位置。
为便于对本发明实施例的进一步理解， 下面将以应用于 LTE系统和 LTE-A系统中 为例， 结合相应的附图具体阐述本发明实施例的实现过程。
实施例一
在该实施例一中， 提供了网络侧分配 ACK/NACK 信道资源及接收或发送 ACK/NACK信息的处理过程， 以及用户设备接收或发送 ACK/NACK信息的处理过程， 下面将分别进行说明。
(一） 网络侧分配 ACK/NACK信道资源及接收或发送 ACK/NACK信息的处理过 程
( 1 ) 在网络侧配置多个物理信道区域；
本发明实施例在具体实现过程中， 为了减小 ACK/NACK的小区间干扰造成的性能 损失且不会增加过多的 ACK/NACK资源开销，具体可以引入一定数量的 LTE-A专有区 域（可以包括多个 LTE-A专有子区域）。具体引入的 LTE-A专有区域的数量可以由高层 信令进行配置。
如图 4所示， LTE 区域中 ACK/NACK信道数量为 N (即标号为 0 至 N-1 的 ACK/NACK信道），在该 N个 ACK/NACK信道中，前面的 16个 ACK/NACK信道的标 号为 0到 15，且该 16个 ACK/NACK信道为公共搜索空间中的 CCE对应的 ACK/NACK 信道。 配置 LTE-A专有区域中 ACK/NACK信道数量为 M， LTE-A专有区域可以包含 LTE区域前面公共搜索空间 CCE对应的 16个 ACK/NACK信道（即标号为 0至 15的 ACK/NACK信道）， 其中， 对于映射到 LTE 的 ACK/NACK 区域的用户， 该 16个 ACK/NACK信道的标号是 0到 15， 而对于映射到 LTE-A专有区域的用户， 该 16个 ACK/NACK信道的标号是 N+M-16到 N+M-1， 即保证 LTE-A专有区域 ACK/NACK信 道数量为 M。
(2)分配用于发送 ACK/NACK信息的物理信道区域，具体包括为网络侧分配发送 ACK/NACK信息的物理信道区域，以及为用户设备分配发送 ACK/NACK信息的物理信 道区域；
仍如图 4所示， 在分配物理信道区域的过程中， 对于非成对的下行载波对应的 ACK/NACK信道可以映射到配置的该 LTE-A专有区域（包括多个 LTE-A专有子区域） 内， 而对于成对的下行载波对应的 ACK/NACK仍然依照 LTE系统的规则映射到相应 LTE系统预留的用于发送或接收 ACK/NACK的物理信道区域（即 LTE区域） 内。
进一步地，对于非成对下行载波对应的 ACK/NACK信道映射到 LTE-A专有区域内 的情况， 还可以引入相应的起始偏移信息， 如图 5所示， 通过该起始偏移信息将相应的 LTE-A专有区域分成了多个 LTE-A专有子区域， 各个 LTE-A专有子区域分别对应于每 个非成对下行载波， 且不同的起始偏移信息的设置可以令多个 LTE-A专有子区域之间 可以完全不重叠、 完全重叠（所有起始偏移相同）或部分重叠。 例如， 通过相应的起始 偏移信息可以使下行载波对应的 ACK/NACK信道落在 LTE系统预留的 LTE 区域或 LTE-A专有区域内， 若落在 LTE系统预留的 LTE区域， 则可以充分利用 LTE区域中冗 余的 ACK/NACK信道， 并可减小 LTE-A专有区域的资源预留数量。
(3 )网络侧在分配的物理信道区域内发送 ACK/NACK信息，并将为用户设备和网 络侧分配的发送 ACK/NACK信息的物理信道区域均通知用户设备， 同时， 网络侧还在 为用户设备分配的发送 ACK/NACK信息的物理信道区域内接收用户设备发送的 ACK/NACK信息； 其中， 网络侧将为用户设备和网络侧分配的发送 ACK/NACK信息的物理信道区域 均通知用户设备的过程中， 具体可以通过 PDCCH (Physical Downlink Control Channel, 物理下行控制信道） 中的 1个比特表示两种不同的物理信道区域， 即指示 ACK/NACK 信道的映射区域为： LTE区域， 或者， LTE-A专有区域。 以使得用户设备通过该 1个比 特信息确定其上行或下行 ACK/NACK信道所在的物理信道区域， 进而确定接收或发送 ACK/NACK信息所使用的 ACK/NACK信道所在的物理信道区域。
如图 6所示， 假设用户有三个下行载波和一个上行载波， 则与上行载波对应的下行 载波（成对下行载波） 的 ACK/NACK信道映射保持与 LTE系统相同的规则， 而对于其 它两个下行载波（即非成对下行载波） 的 PDCCH与 ACK/NACK的映射关系， 则可以 采用对应下行载波上 PDCCH的 CCE标号和起始偏移信息映射确定相应的 ACK/NACK 信道，其中，起始偏移信息可以确定 ACK/NACK信道所在的物理信道区域为 LTE区域， 或者， 为具体地哪一个 LTE-A专有子区域， 相应的 CCE标号则可以确定 ACK/NACK 信道在相应的 LTE区域或 LTE-A专有子区域中的具体位置。 另外， 在 LTE-A专有区域 中， 也可以采用其它映射规则确定相应的 ACK/NACK信道。
进一步地， 仍以 PDCCH中增加 lbit (即两个状态， state 0和 state 1 )为例， 如图 7 所示， 相应 ACK/NACK信道的映射过程可以包括：
( a)对于成对的下行载波（CC0 )上的 ACK/NACK信道资源映射可以采用 LTE 系统的映射规则， 即 ACK/NACK信道标号与 PDCCH的最小 CCE index ( CCE索引） 对应。
(b )对于非成对的下行载波（CC1和 CC2 )上的 ACK/NACK资源映射可以引入 新的映射规则， 采用本载波上的 PDCCH中 lbit来做指示， 包括：
当非成对下行载波上 PDCCH由 1个 CCE组成时，其 ACK/NACK信道采用此下行 载波 PDCCH的 CCE index对应的 ACK/NACK信道；
当非成对下行载波上 PDCCH由 2个 CCE组成时， PDCCH中 lbit可以用来表示两 个 ACK/NACK信道的位置， 映射规则采用此下行载波 PDCCH的 CCE index对应； 当非成对下行载波上 PDCCH由 4个 CCE组成时， PDCCH中 lbit可以用来表示两 个 ACK/NACK信道的位置， 采用 4个 CCE 中的第二和第四个 CCE index来映射 ACK/NACK信道， 从而可以减小与成对载波中对应 ACK/NACK信道资源的冲突概率； 当非成对下行载波上 PDCCH由 8个 CCE组成时， 规则如上述 4个 CCE情况， 此 时选择的两个 CCE index可以是 8个 CCE中的第二、四、六和八个 CCE index中的任意 两个 CCE index来映射 ACK/NACK信道。
需要说明的是， 本发明实施例既可以适用于上行 ACK/NACK信道的确定， 也可以 同样适用于下行 ACK/NACK信道的动态指示， 例如， PDCCH中的 1个特定比特， 还 可以用于指示下行 ACK/NACK的具体映射区域， 进而确定相应的下行 ACK/NACK信 道， 具体的实现过程与上述过程类似。
再者， 网络侧将为用户设备和网络侧分配的发送 ACK/NACK信息的物理信道区域 均通知用户设备的过程中， 还可以采用 PDCCH中的多个比特动态指示 ACK/NACK信 道所在的物理信道区域的情况， 例如， 采用 PDCCH 中的 2 个比特动态指示四种 ACK/NACK信道的具体所在的物理信道区域， 等等。
另外， 在网络侧将为用户设备和网络侧分配的发送 ACK/NACK信息的物理信道区 域均通知用户设备的过程中， 若设置了起始偏移信息， 则还可以通过 RRC信令将相应 的起始偏移需要通知用户设备； 例如， 可以在对应的下行载波上广播相应的起始偏移信 息； 或者， 也可以在成对载波上广播所有的起始偏移信息， 且可以与 LTE-A专有 ACK/NACK信道资源预留使用一条信令承载； 或者， 还可以承载在 PDCCH中， 用现 有的比特字段表示该起始偏移信息， 比如 HARQ pr0CeSS、 MCS (调制编码方式）等。
(二）用户设备接收或发送 ACK/NACK信息的处理过程
用户设备接收网络侧发送来的物理信道区域的指示信息，并根据相应的指示信息进 行 ACK/NACK信息的接收或发送；
具体地， 用户设备接收到网络侧发送来的指示信息， 并根据该指示信息确定网络侧 为用户设备和网络侧分配的发送 ACK/NACK信息的物理信道区域后， 便可以在相应的 物理信道区域中， 根据相应的映射规则确定用户设备接收或发送 ACK/NACK信息的 ACK/NACK信道， 进而通过相应的 ACK/NACK信道接收或发送 ACK/NACK信息。
实施例二
上述实施例一提供的动态通知 ACK/NACK具体映射的区域的实现方案还可以扩展 到 CoMP (协作多点） 系统中的 ACK/NACK发送。 在 CoMP系统中相应的物理信道区 域包括： CoMP区域和非 CoMP区域。 其中， 如图 8所示， CoMP区域既可以用作交叉 ACK/NACK映射的场景， 也可以如图 9所示， 用于非交叉 ACK/NACK映射的场景， 即 在成对的下行载波进行 ACK/NACK映射时，也可以动态选择非 CoMP区域或 CoMP区 域。
在扩展到 CoMP系统中， 相应的网络侧分配 ACK/NACK信道资源及接收或发送 ACK/NACK信息的处理过程， 以及用户设备接收或发送 ACK/NACK信息的处理过程， 与上述实施例一描述的过程相似， 故不再重复描述。
实施例三
在该实施例三中， 是本发明实施例扩展到多个子帧间的 ACK/NACK信道指示场景 下， 即解决多个子帧间 ACK/NACK信道灵活指示和冲突问题。
具体地， 以 3 个下行载波、 1 个上行载波的情况为例， 在该情况下具体可以通过 PDCCH中包含 lbit信息， 指示两个子帧间的 ACK/NACK信道。
例如， 如图 10所示， 将一个用户设备的所有 PDCCH (图 10中以 3个 PDCCH为 例）均放在某一个下行载波（如下行主载波）上， 则当前子帧的数据和 PDCCH可以在 同一子帧， 但所指示的其它载波的数据跟其对应的 PDCCH需要延后一个子帧， 参见图 10中的下行载波 1和下行载波 2中的箭头指示的位置，而上行 ACK/NACK反馈是在对 应数据信道之后的第 4个子帧发送。
在上述处理过程中， 将导致同一用户设备的 PDCCH在一个子帧上传输， 而其上行 ACK/NACK 信道是在不同子帧进行反馈， 进而使得下一子帧的 PDCCH 对应的 ACK/NACK可能会产生冲突。
为解决该冲突问题， 则具体可以在上行子帧预留一个 LTE-A专有区域， 通过本发 明实施例提供的处理方案中的指示方式（如实施例一描述的指示方式等）通知用户设备 在上述情况下具体的 ACK/NACK信道的位置，即指示在 LTE区域或 LTE-A专有区域中 的具体的 ACK/NACK信道的位置。
通过上各个本发明实施例可以看出， 由于引入 LTE-A专有区域， 从而可以实现非 成对上行载波或者非成对下行载波对应的 ACK/NACK信息的反馈， 在 ACK/NACK资 源预留开销和 ACK/NACK资源映射冲突间取得折中， 并可缓解小区间干扰可能带来的 ACK/NACK性能损失。 同时， 引入了起始偏移信息， 使得可以更大程度地灵活调度 ACK/NACK信道资源， 例如， 当成对下行载波的 CFI (控制格式指示， control format indication)值较小时， 可以将通过起始偏移信息将物理信道区域选择在 LTE区域内， 充 分利用 LTE区域中 ACK/NACK信道的冗余， 以减小 LTE-A专有区域中的资源预留，提 高了 ACK/NACK信道的利用率。而且， 本发明实施例中， 由于 LTE-A专有区域内的包 含了公共搜索空间中 CCE对应的 ACK/NACK信道， 从而进一步提高了 ACK/NACK信 道的利用率。 另外， 本发明实施例还可以为用户的每个非成对下行载波分别预留一个 LTE-A专有区域（或 LTE-A专有子区域）， 以减小 ACK/NACK信道的冲突。 本发明实 施例中， 通过不同的物理信道区域的分配， 还可以动态释放 ACK/NACK资源用于数据 传输；例如，当 LTE的用户较少，或 LTE区域中冗余较大时，可以动态调整 ACK/NACK 信道映射到 LTE区域中， 此时， 预留的 LTE-A专有区域资源便可以释放用于数据信道 传输。
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，所述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， 所述的存储介质可 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。
本发明实施例还提供了一种信道资源分配的装置， 其具体可以设置于网络侧， 如基 站中等， 如图 11所示， 可以包括：
物理信道区域决定模块 901， 用于确定 ACK/NACK信道占用的多个物理信道区域 中的一个物理信道区域， 即在多个物理信道区域中选择一个 ACK/NACK信道占用的物 理信道区域， 相应的物理信道区域包括上行或下行的物理信道区域；
通知模块 902， 用于将上述物理信道区域决定模块 901决定的物理信道区域通知用 户设备， 以便于用户设备可以根据设定的映射规则， 在所述物理信道区域中确定接收或 发送 ACK/NACK信息使用的信道； 具体地， 该通知模块 902可以但不限于通过层 1信 令 /层 2信令或无线资源控制层 RRC信令将相应的物理信道区域通知给用户侧。
其中，相应的通知模块 902发送的物理信道区域的信息中的物理信道区域可以包括 LTE区域和 LTE-A专有区域， 相应的 LTE-A专有区域还可以包括多个 LTE-A专有子区 域，且 LTE-A专有区域还可以包括 LTE系统中的公共搜索空间 CCE对应的 ACK/NACK 信道； 或者， 相应的物理信道区域可以包括 COMP区域和非 COMP区域， 等等。
相应的通知模块 902具体可以但不限于通过物理下行控制信道中的一个或多个比特 信息指示用户侧接收或发送 ACK/NACK信息的物理信道区域； 或者， 也可以通过加载 PDCCH信道上的不同的扰码指示用户侧接收或发送 ACK/NACK信息的物理信道区域， 等等。
在该装置中， 相应的通知模块 902还可以用于通过 RRC信令向用户设备发送起始 偏移信息， 相应的起始偏移信息可以用于确定物理信道区域的起始点， 根据预定的映射 规则， 该起始偏移信息具体还可以用于与控制信道单元 CCE标号结合指示在用户侧接 收或发送 ACK/NACK信息的物理信道区域包含的多个信道中， 用户侧接收或发送 ACK/NACK信息使用的信道。
本实施例中， 该装置还可以包括物理信道区域划分模块， 用于划分至少一个第一物 理信道区域以及至少一个第二物理信道区域，其中该第一物理信道区域包括用于发送成 对载波的确认信息的确认信息信道，该第二物理信道区域包括用于发送非成对载波的确 认信息的确认信息信道。
本发明实施例也提供了一种确认信息处理的装置， 其具体可以设置于用户设备中， 相应的实现结构如图 12所示， 可以包括：
( 1 )物理信道区域获取模块 1001， 用于获取物理信道区域指示信息， 相应的指示 信息用于指示多个物理信道区域中 ACK/NACK信道所在的物理信道区域， 其中， 相应 的物理信道区域具体可以为上行 ACK/NACK 信道所在的物理信道区域或下行 ACK/NACK信道所在的物理信道区域；该物理信道区域获取模块 1001具体可以通过层 1/层 2信道或 RRC信令等接收网络侧发送来的物理信道区域指示信息；
上述物理信道区域获取模块 1001可以通过下行物理控制信道中的一个或多个比特 获取 ACK/NACK信道的物理信道区域指示信息； 或者， 也可以通过下行物理控制信道 中的扰码获取 ACK/NACK信道的物理信道区域指示信息， 或者， 也可以采用其他方式 获取相应的物理信道区域指示信息。
(2)确认信息处理模块 1002，用于根据上述物理信道区域获取模块 1001获取物理 信道区域指示信息， 在相应的 ACK/NACK 信道所在物理信道区域上发送或接收 ACK/NACK信息；
相应的确认信息处理模块 1002具体还可以用于确定 ACK/NACK信道所占用的物理 信道区域中的信道，具体用于根据不同的映射规则，在不同的 LTE-A专有子区域或 LTE 区域包含的多个信道中， 确定接收或发送 ACK/NACK信息应用的信道。
在该装置中， 相应的物理信道区域具体可以包括 LTE区域和 LTE-A专有区域； 或 者， 也可以包括 COMP区域和非 COMP区域。进一步地， 相应的 LTE-A专有区域包括 多个个 LTE-A专有子区域， 相应的 LTE-A专有区域还可以包括 LTE系统中的公共搜索 空间 CCE对应的 ACK/NACK信道。
本发明实施例也提供了一种确认信息处理的装置， 其具体可以设置于网络侧， 如基 站中等， 相应的实现结构如图 13所示， 可以包括：
( 1 )物理信道区域获取模块 1101， 用于获取物理信道区域指示信息， 相应的指示 信息用于指示多个物理信道区域中 ACK/NACK信道所在的物理信道区域， 其中， 相应 的物理信道区域具体可以为上行 ACK/NACK 信道所在的物理信道区域或下行 ACK/NACK信道所在的物理信道区域； 该物理信道区域获取模块 1101具体可以在本地 获取相应的物理信道区域指示信息。
(2)确认信息处理模块 1102，用于根据上述物理信道区域获取模块 1101获取物理 信道区域指示信息， 在相应的 ACK/NACK 信道所在物理信道区域上发送或接收 ACK/NACK信息；
相应的确认信息处理模块 1102具体还可以用于确定 ACK/NACK信道所占用的物理 信道区域中的信道，具体用于根据不同的映射规则，在不同的 LTE-A专有子区域或 LTE 区域包含的多个信道中， 确定接收或发送 ACK/NACK信息应用的信道。
在该装置中， 相应的物理信道区域具体可以包括 LTE区域和 LTE-A专有区域； 或 者， 也可以包括 COMP区域和非 COMP区域。 进一步地， 相应的 LTE-A专有区域包括 多个个 LTE-A专有子区域， 相应的 LTE-A专有区域还可以包括 LTE系统中的公共搜索 空间 CCE对应的 ACK/NACK信道。
本发明实施例还提供了一种基站， 其具体实现结构如图 14所示， 具体可以包括上 述物理信道区域决定模块 901、 通知模块 902、 物理信道区域获取模块 1101及确认信息 处理模块 1102， 其中， 相应的物理信道区域获取模块 1101获取物理信道区域决定模块 901确定的物理信道区域指示信息。 各模块的功能作用前面已经描述， 在些不再重复描 述。
通过上述信道资源分配的装置及确认信息处理的装置，可以实现非成对上行载波或 者下行载波对应的 ACK/NACK消息的反馈， 有效提高 ACK/NACK信道的利用率， 改 善 ACK/NACK资源调度的灵活性， 并可以降低 ACK/NACK信道产生冲突的可能性。
以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不局限于此， 任何熟悉本技术领域的技术人员在本发明揭露的技术范围内， 可轻易想到的变化或替 换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应该以权利要求的保 护范围为准。

Claims

权利要求
1、 一种资源分配的方法， 其特征在于， 包括：
从至少一个第一物理信道区域以及至少一个第二物理信道区域中确定一个物理信 道区域， 其中所述第一物理信道区域包括用于发送成对载波的确认信息的确认信息信 道， 所述第二物理信道区域包括用于发送非成对载波的确认信息的确认信息信道； 通过信令将所述确定的物理信道区域通知用户设备，用于所述用户设备在所述确定 的物理信道区域中确定确认信息信道。
2、 根据权利要求 1所述的方法， 其特征在于， 所述通过信令将所述确定的物理信 道区域通知用户设备， 包括以下之一或其任意组合：
通过物理下行控制信道中的一个或多个比特信息通知用户设备所述确定的物理信 道区域；
通过物理下行控制信道中的扰码通知用户设备所述确定的物理信道区域。
3、 根据权利要求 2所述的方法， 其特征在于， 所述通过物理下行控制信道中的一 个或多个比特信息通知用户设备所述确定的物理信道区域， 包括以下之一或其任意组 合. 通过物理下行控制信道中的新增比特通知用户设备所述确定的物理信道区域； 通过物理下行控制信道中的冗余比特或者冗余状态通知用户设备所述确定的物理 信道区域；
通过将用于表示所述确定的物理信道区域的信息与物理下行控制信道中的信息进 行联合编码通知用户设备所述确定的物理信道区域。
4、 根据权利要求 1所述的方法， 其特征在于， 所述方法进一步包括：
通知所述用户设备所述至少一个第一物理信道区域的位置以及所述至少一个第二 物理信道区域的位置，用于所述用户设备根据所述第一物理信道区域的位置以及确定的 物理信道区域为所述第一物理信道区域， 在所述第一物理信道区域中确定确认信息信 道，或者用于所述用户设备根据所述第二物理信道区域的位置以及确定的物理信道区域 为所述第二物理信道区域， 在所述第二物理信道区域中确定确认信息信道。
5、 根据权利要求 4所述的方法， 其特征在于，
所述通知所述用户设备所述至少一个第一物理信道区域的位置以及所述至少一个 第二物理信道区域的位置， 包括： 将起始偏移信息通知所述用户设备， 以使得所述用户 设备利用所述起始偏移信息与控制信道单元 CCE 的标号， 在所述确定的物理信道区域 包含的多个信道中， 确定所述用户设备的确认信息信道；
其中所述起始偏移信息用于指示所述至少一个第一物理信道区域以及所述至少一 个第二物理信道区域中各物理信道区域的起始点。
6、 根据权利要求 1至 5中任一项所述的方法， 其特征在于，
所述第一物理信道区域包括： LTE区域， 非协作多点 COMP区域， 非 Relay区域中 的一个或者多个；
在所述第一物理信道区域包括 LTE区域时， 所述第二物理信道区域包括 LTE-A专 有区域；
在所述第一物理信道区域包括非 COMP区域时，所述第二物理信道区域包括 COMP 区域；
在所述第一物理信道区域包括非 Relay区域时， 所述第二物理信道区域包括 Relay 区域。
7、 根据权利要求 6所述的方法， 其特征在于， 所述 LTE-A专有区域包括 LTE系统 中的公共搜索空间中的 CCE对应的确认信息信道。
8、 一种资源分配的装置， 其特征在于， 所述装置包括：
物理信道区域决定模块，用于确定确认信息信道占用的多个物理信道区域中的一个 物理信道区域， 其中所述确认信息信道为用于接收或者发送确认信息的信道；
通知模块， 用于通过信令将所述确定的物理信道区域通知用户设备， 使得所述用户 设备根据映射规则在所述物理信道区域中确定确认信息信道。
9、 根据权利要求 8所述的装置， 其特征在于， 所述装置进一步包括：
物理信道区域划分模块，用于划分至少一个第一物理信道区域以及至少一个第二物 理信道区域，其中所述第一物理信道区域包括用于发送成对载波的确认信息的确认信息 信道， 所述第二物理信道区域包括用于发送非成对载波的确认信息的确认信息信道。
10、 一种确认信息处理的方法， 其特征在于， 包括：
获取物理信道区域指示信息，所述物理信道区域指示信息用于指示在至少一个第一 物理信道区域以及所述至少一个第二物理信道区域中确认信息信道所在的物理信道区 域， 其中所述第一物理信道区域包括用于发送成对载波的确认信息的确认信息信道， 所 述第二物理信道区域包括用于发送非成对载波的确认信息的确认信息信道；
根据所述物理信道区域指示信息，在所述物理信道区域指示信息指示的物理信道区 域中确定确认信息信道； 在所述确认信息信道上发送或接收确认信息。
11、 根据权利要求 10所述的方法， 其特征在于， 所述获取物理信道区域指示信息， 包括以下之一或其任意组合：
用户设备通过物理下行控制信道中的一个或多个比特信息来获取所述物理信道区 域指示信息；
用户设备通过物理下行控制信道中的扰码来获取所述物理信道区域指示信息。
12、 根据权利要求 10所述的方法， 其特征在于， 所述获取物理信道区域指示信息， 包括：
基站在本地获取所述物理信道区域指示信息。
13、 根据权利要求 10所述的方法， 其特征在于，
在所述根据所述物理信道区域指示信息在所述物理信道区域指示信息指示的物理 信道区域中确定确认信息信道之前， 所述方法进一步包括：
用户设备接收起始偏移信息；
所述用户设备根据所述起始偏移信息获知所述至少一个第一物理信道区域和所述 至少一个第二物理信道区域中各物理信道区域的起始点；
以及， 所述根据物理信道区域指示信息， 在所述物理信道区域指示信息指示的物理 信道区域中确定确认信息信道， 包括：
所述用户设备根据所述起始偏移信息获知所述物理信道区域指示信息指示的物理 信道区域的位置， 并在所述物理信道区域中确定确认信息信道。
14、 一种确认信息处理的装置， 其特征在于， 包括：
物理信道区域获取模块， 用于获取物理信道区域指示信息， 所述指示信息用于指示 多个物理信道区域中确认信息信道所在的物理信道区域；
确认信息处理模块，用于根据所述物理信道区域获取模块获取的物理信道区域指示 信息， 在所述确认信息信道所在物理信道区域上发送或接收确认信息。
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US9768937B2 (en) 2017-09-19
RU2479137C1 (ru) 2013-04-10
PT2387176E (pt) 2015-09-01
CN101790240B (zh) 2015-04-15
ES2542971T3 (es) 2015-08-13
US20110286414A1 (en) 2011-11-24
US20160088605A1 (en) 2016-03-24
BRPI1007309A2 (pt) 2016-02-10
US9345005B2 (en) 2016-05-17
EP2894806A1 (en) 2015-07-15
EP2894806B1 (en) 2021-05-19
EP2387176A4 (en) 2012-03-14
US10211962B2 (en) 2019-02-19
EP2387176A1 (en) 2011-11-16
US20190158255A1 (en) 2019-05-23
US20200295904A1 (en) 2020-09-17
RU2011135282A (ru) 2013-02-27
CN101790240A (zh) 2010-07-28
CN104184567B (zh) 2019-11-22
BRPI1007309B1 (pt) 2021-04-27
US20180013534A1 (en) 2018-01-11
EP2387176B1 (en) 2015-04-22
US9219580B2 (en) 2015-12-22
US10686577B2 (en) 2020-06-16
CN104184567A (zh) 2014-12-03

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