WO2013013643A1 - 控制信道的接收和发送方法和装置 - Google Patents

控制信道的接收和发送方法和装置 Download PDF

Info

Publication number
WO2013013643A1
WO2013013643A1 PCT/CN2012/079316 CN2012079316W WO2013013643A1 WO 2013013643 A1 WO2013013643 A1 WO 2013013643A1 CN 2012079316 W CN2012079316 W CN 2012079316W WO 2013013643 A1 WO2013013643 A1 WO 2013013643A1
Authority
WO
WIPO (PCT)
Prior art keywords
control channel
type
format
control
pdcch region
Prior art date
Application number
PCT/CN2012/079316
Other languages
English (en)
French (fr)
Inventor
刘昆鹏
刘江华
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 EP12818152.6A priority Critical patent/EP2731390B1/en
Priority to CA2843237A priority patent/CA2843237C/en
Priority to RU2014107725/07A priority patent/RU2564098C1/ru
Priority to EP18192141.2A priority patent/EP3496322B1/en
Priority to KR1020147003860A priority patent/KR101542816B1/ko
Publication of WO2013013643A1 publication Critical patent/WO2013013643A1/zh
Priority to US14/166,506 priority patent/US9455812B2/en
Priority to US15/245,974 priority patent/US10148403B2/en
Priority to US16/197,611 priority patent/US10805053B2/en

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B7/00Radio transmission systems, i.e. using radiation field
    • H04B7/24Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2612Arrangements for wireless medium access control, e.g. by allocating physical layer transmission capacity
    • 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
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/004Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045Arrangements at the receiver end
    • H04L1/0046Code rate detection or code type detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/08Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • 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
    • H04W72/1268Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of uplink data flows
    • 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
    • H04W72/1273Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows of downlink data flows

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a method and apparatus for receiving and transmitting a control channel. Background technique
  • the base station needs to send scheduling information to the user equipment in a downlink subframe, and the time-frequency resource of the downlink subframe is divided into two areas, that is, a physical downlink control channel. (Physical Downlink Control Channel, PDCCH) area and Physical Downlink Statistics Channel (PDSCH) area.
  • PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Statistics Channel
  • the PDCCH region is used for transmitting scheduling indication signaling of the downlink or uplink data transmission of the user equipment by the base station, including resource allocation of the data channel, modulation and coding mode, multi-antenna transmission or hybrid automatic repeat request (HQQ). Process related information, etc.; and the PDSCH area is used to carry specific scheduling data.
  • a PDSCH region and a PDCCH region adopt a time division multiplexing manner, and a PDCCH region (ie, a portion filled with a diagonal line in FIG. 1) occupies the first N orthogonal frequency divisions of a downlink subframe.
  • the scheduling information of the base station to the multiple user equipments may be multiplexed in a PDCCH region in one subframe, and the PDCCH region corresponding to each user equipment may be composed of 1/2/4/8 Control Channel Elements (CCEs). These components respectively correspond to different coding bit rates, so that the PDCCH region of different user equipments is formed by the CCE in the PDCCH region of the downlink subframe, so that the scheduling information of the base station to the user equipment is carried out by the base station.
  • CCEs Control Channel Elements
  • the user equipment When the user equipment receives the downlink subframe sent by the base station, it does not Knowing which CCEs the PDCCH region corresponding to the user equipment is composed of, the user equipment needs to perform blind detection of the corresponding PDCCH region in the common search interval and the specific search interval, specifically, detecting all possible CCEs in the received downlink subframe. Control channels of the combination mode (ie 1, 2, 4, and 8 CCEs) until the PDCCH region corresponding to the user equipment is detected.
  • the combination mode ie 1, 2, 4, and 8 CCEs
  • LTE evolved version
  • Mul multiple input multiple output
  • LTE evolved version
  • a new PDCCH resource needs to be defined, that is, an extended physical downlink control channel (E-PDCCH) region is used, and part of the time-frequency resource of the original PDSCH region is used, and the frequency of the PDSCH region can be used.
  • E-PDCCH extended physical downlink control channel
  • Multiplexing is performed by means of division multiplexing or time-frequency division multiplexing.
  • the existing scheme is to limit the uplink and downlink scheduling information of the user equipment of the R11 system to only the E-PDCCH region, so that only the user equipment is required to be public.
  • the search interval and the specific search interval perform blind detection of the E-PDCCH region.
  • the PDCCH area is not fully occupied, and the user equipment of the R11 system cannot use the remaining PDCCH area resources, resulting in resource utilization. low.
  • the embodiments of the present invention provide a method and a device for receiving and transmitting a control channel, so that resource utilization is increased without increasing the number of times of control channel detection.
  • An embodiment of the present invention provides a method for receiving a control channel, including:
  • the first type of control channel is different from the second type of control channel.
  • An embodiment of the present invention provides a method for transmitting a control channel, including:
  • the first type of control channel is different from the second type of control channel.
  • An embodiment of the present invention further provides a user equipment, including:
  • a first detecting unit configured to detect a first type of control channel in a physical downlink control channel PDCCH region
  • a second detecting unit configured to detect a second type of control channel in the evolved physical downlink control channel E-PDCCH region; the first type of control channel is different from the second type of control channel.
  • the embodiment of the invention further provides a base station, including:
  • a first sending unit configured to send scheduling information by using a first type of control channel in a physical downlink control channel PDCCH region;
  • a second sending unit configured to send scheduling information by using a second type of control channel in the evolved physical downlink control channel E-PDCCH region; the first type of control channel is different from the second type of control channel.
  • the base station carries the scheduling information of the user equipment of the R11 system in the PDCCH area and the E-PDCCH area of the downlink subframe, so that the user equipment needs to detect and control in the corresponding PDCCH area and the E-PDCCH area, respectively.
  • the channel enables the user equipment of the R11 system to use the resources of the two areas.
  • control channel of the format such that the user equipment of the non-evolved version of the system needs to perform all possible types of control channels.
  • the method in the embodiment of the present invention does not increase the number of times of control channel detection.
  • FIG. 1 is a schematic structural diagram of a downlink subframe in the prior art
  • FIG. 2 is a flowchart of a method for receiving a control channel according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a downlink subframe according to an embodiment of the present disclosure.
  • FIG. 3b is a schematic structural diagram of another downlink subframe according to an embodiment of the present disclosure.
  • FIG. 4 is a structural diagram of a PDCCH region in which a base station multiplexes scheduling information of multiple user equipments in one downlink subframe according to an embodiment of the present invention
  • FIG. 5 is a structural diagram of an aggregation format of a PDCCH region in a downlink subframe according to an embodiment of the present invention
  • FIG. 6 is a flowchart of a method for transmitting a control channel according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a user equipment according to an embodiment of the present disclosure.
  • FIG. 8 is a schematic structural diagram of a base station according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides a method for receiving a control channel, which is applied to a blind detection of a control channel by a user equipment in a process of receiving a control channel, and the method in this embodiment is a method performed by a user equipment of the R11 system, and a flowchart As shown in Figure 2, it includes: Step 101: Detect a first type of control channel in a physical downlink control channel PDCCH region. Step 102: Detect a second type of control channel in an evolved physical downlink control channel E-PDCCH region.
  • the base station can transmit the scheduling information of the uplink or downlink data transmission of the user equipment to the downlink device, and the PDCCH region, the PDSCH region, and the E-DCCH region are included in the downlink subframe sent by the base station in this embodiment of the present invention.
  • the PDSCH region and the PDCCH region adopt a time division multiplexing manner, where the PDCCH region occupies the first N OFDM symbols of the downlink subframe, and the PDSCH region occupies the remaining OFDM symbols; and the E-PDCCH region uses part of the time-frequency resources of the original PDSCH region, It can be frequency-division multiplexed with the PDSCH region (as shown in Figure 3a), or it can be time-frequency-multiplexed with the PDSCH region (as shown in Figure 3b).
  • the basic component of the resource in the PDCCH region is a CCE, and each CCE is mapped to a specific set of time-frequency grids (Resources, REs) in the PDCCH region, and the scheduling information of the plurality of user equipments by the base station can be multiplexed in one downlink sub-subsection.
  • the PDCCH region in the frame, the PDCCH region corresponding to each user equipment may be composed of a combination of 1, 2, 4 or 8 CCEs. For example, as shown in FIG.
  • CCE1 to CCE4 form a PDCCH region corresponding to user equipment (UE) 1
  • CCE5 and CCE6 form a PDCCH region corresponding to user equipment 2
  • CCE7 and CCE8 respectively constitute a PDCCH region corresponding to user equipments 3 and 4.
  • the basic component of the resource in the E-PDCCH region is an evolved CCE (E-CCE), and each E-CCE is mapped on a specific time-frequency grid point in the E-PDCCH region, and the structure and size of the E-CCE. It may be different from the structure and size of the CCE in the PDCCH region, or may be the same.
  • E-CCE evolved CCE
  • the base station uses different types of control channels to carry scheduling information for the user equipment in the PDCCH region and the E-PDCCH region of the downlink subframe, for example, the base station adopts N1 CCE combinations in the PDSCH region, and adopts N2 Es in the E-PDCCH region.
  • - CCE combination to transmit scheduling indication signaling of base station to downlink or uplink data transmission of a certain user equipment.
  • the user equipment does not know which control channel units are composed of the PDCCH region and the E-PDCCH region corresponding to the user equipment, respectively. Therefore, when receiving the downlink subframe, the user equipment needs to perform blind detection on the PDCCH region and the E-PDCCH region corresponding to the user equipment.
  • the detected first type and the second type of control channels are different, and specifically, at least one of the plurality of attributes of the first type and the second type of control channel is different,
  • the attributes include: the aggregation format of the control channel, the signaling format of the control channel transmission, and the search interval type of the control channel. among them:
  • the first type of control channel may include at least one aggregation format
  • the second type of control channel may also include at least one aggregation format
  • the different types of the control formats of the first type and the second type of control channels refer to the first type of
  • the aggregation mode included in the control channel is completely different or partially different from the aggregation format included in the control channel of the second type, and the combination of the control channel elements detected by the user equipment in detecting the PDCCH region and the E-PDCCH region is completely complete. Or partially different, including the number of combinations of control channel elements (ie, the aggregation level of the control channel) and/or the format of the control channel elements being completely or partially different, such as the size or structure of the control channel elements.
  • the signaling format of the control channel transmission refers to the specific content of the control channel for transmitting scheduling information. If the signaling formats of the control channels of the first type and the second type are different, the specific content of the control channel detected by the user equipment when detecting in the PDCCH region and the E-PDCCH region is different. Specifically, the user equipment is in the PDCCH.
  • the control channel detected in the area and the E-PDCCH region transmits downlink control information of different downlink control signaling formats (DCI formats), where the DCI format may specifically include a first DCI format group, a second DCI format group, and a third DCI format.
  • DCI formats downlink control signaling formats
  • the search interval type refers to a transmission resource range in which the user equipment searches for a downlink subframe, including a common search interval type and a user-specific search interval type, where the common search interval is used to transmit common control information (eg, system broadcast message, seek)
  • the scheduling indication signaling of the call message, and the random access message, etc. is used to transmit the scheduling indication signaling of the downlink data transmission on the user equipment in the user-specific search interval.
  • the common search space is fixed to contain 0 to 15 control channel elements, and the start of the user-specific search space is determined by the user identification (ID) and the aggregation format of the PDCCH. If the search interval types of the control channels of the first type and the second type are different, the search interval in which the user equipment detects the control channel in the PDCCH region and the E-PDCCH region is different.
  • steps 101 and 102 have no absolute order relationship, and the specific one shown in Fig. 2 is only a specific example.
  • the base station carries the scheduling information of the user equipment of the R11 system in the PDCCH area and the E-PDCCH area of the downlink subframe, so that the user equipment needs to detect the control channel in the PDCCH area and the E-PDCCH area, respectively.
  • the user equipment of the R11 system can use resources of two regions.
  • since different types of control channels are detected in the PDCCH region and the E-PDCCH region only one type of control channel is detected in the PDCCH region, and another type is detected in the E-PDCCH region.
  • the method in the embodiment of the present invention does not increase the number of times of control channel detection, as the user equipment of the non-evolved version system needs to perform detection of all possible types of control channels.
  • the first type and the second type of control channel that are detected by the user equipment may be configured by the base station side, and the base station may send configuration information to the user equipment in a predefined or broadcast manner, where the configuration information is used to indicate The user equipment performs the detection of the first type and the second type of control channel, and the configuration information may be sent by using a message such as a broadcast message or a high layer signaling notification.
  • the base station can be configured to have the same control channel type detected by the multiple user equipments in the PDCCH region (or the E-PDCCH region), and can also configure different control channel types detected by the user equipment in the PDCCH region (or the E-PDCCH region).
  • the aggregation format portions of the control channels of the first type and the second type are different or completely different, the first type of control channel detected by the user equipment in the PDCCH region and in the E-PDCCH region
  • the detected second type of control channel includes a different or different aggregation format.
  • i may take any one or more values from 0 to N, and when the PDCCH region and the E-PDCCH region are detected, the obtained i values have no intersection.
  • the first type and the second type of control channels have different aggregation formats, and the user equipment of the R11 system detects the control channel with the aggregation format ⁇ 1*CCE, 2*CCE ⁇ in the PDCCH region. And the number of detections is N1+N2; and the control channel whose aggregation format is ⁇ 4*E-CCE, 8*E-CCE ⁇ is detected in the E-PDCCH region, and the number of detections is N3+N4.
  • the total number of times that the user equipment of the R11 system performs the detection in the PDCCH area and the E-PDCCH area is N1 + N2 + N3 + N4, and the user equipment of the non-evolved version system detects the aggregation format in the PDCCH area as ⁇ 2*CCE,
  • the number of control channels of 1*CCE, 4*CCE, 8*CCE ⁇ has not increased.
  • the aggregation format included in the control channel detected in the PDCCH region and the E-PDCCH region that is, the combination manner of the control channel unit may be partially different, which requires the user equipment to
  • the sum of the number of times of the first type of control channel detected in the PDCCH region and the number of times of the second type of control channel detected in the E-PDCCH region is not greater than a preset number of detections.
  • the user equipment detects a control channel whose aggregation format is fi (0 i N!) when detecting in the PDCCH region, and detects the aggregation format as fi (N 2 ⁇ i ⁇ ) when detecting in the E-PDCCH region.
  • N control channel, where N 2 ⁇ N1.
  • M1 times the first type of control channel is detected in the PDCCH region
  • M2 times the second type of control channel is detected in the E-PDCCH region
  • M1+M2 is not greater than the preset detection number M.
  • M may be the number of control channels detected by the user equipment of the non-evolved version system (the user equipment of the R8/9/10 system) in the PDCCH region.
  • i may take any one or more of 0 to N, and when the PDCCH region and the E-PDCCH region are detected, the obtained i values have an intersection.
  • the user equipment of the R11 system detects the control of the aggregation format ⁇ 1*CCE, 2*CCE ⁇ in the PDCCH region.
  • the channel, and the number of detections is X1+X2; and the control channel whose aggregation format is ⁇ 2*E-CCE, 4*E-CCE ⁇ is detected in the E-PDCCH region, and the number of detections is X3+X4.
  • the total number of times that the user equipment detects in the PDCCH region and the E-PDCCH region is X3+X4+X1+X2.
  • the system is compared with the non-evolved version system.
  • the number of times that the user equipment detects the control channel whose aggregation format is ⁇ 2*CCE, 1*CCE, 4*CCE, 8*CCE ⁇ in the PDCCH region also does not increase.
  • the resource size of the aggregation format included in the second type of control channel detected by the user equipment in the E-PDCCH region is not smaller than the resource size of the aggregation format included in the control channel of the first type detected in the PDCCH region, so that the Improve control channel performance and resource utilization.
  • the user equipment can detect the control channel with the aggregation format ⁇ 1, 2 ⁇ in the PDCCH region, and the user equipment can detect the aggregation in the E-PDCCH region.
  • the aggregation format of the control channel that is detected by the user equipment in the PDCCH region and the E-PDCCH region may be a common configuration of the cell, that is, the base station may configure all user equipments to detect the same in the PDCCH region (or E-PDCCH region).
  • the control channel of the aggregation format is sent to the user equipment by means of a system predefined or broadcast message;
  • the base station may also configure each user equipment to detect in the PDCCH region (or E-PDCCH region). Control channels of different aggregation formats. For example, the base station may configure the user equipment 1 to detect a control channel with an aggregation format of 1 and in the PDCCH region, and detect a control channel with an aggregation format of 4 and 8 in the E-PDCCH region; and the user equipment 2 detects the aggregation in the PDCCH region. A control channel of format 1 and detecting control channels of 2, 4, and 8 in aggregate format in the E-PDCCH region.
  • the base station When the base station configures the control channel aggregation format detected by the user equipment, the base station can notify the user equipment by using the high layer signaling.
  • the control channel aggregation format can be bound to the identifier (ID) of the user equipment in the high layer signaling notification, for example,
  • ID identifier
  • There is an S-type control channel aggregation format, and a user equipment can be configured to detect the control channel of the s-th aggregation format, where s is the identity of the user equipment and is modulo S, that is, s mod (UE_ID, S).
  • the base station may send the UE-specific signaling or the cell-specific signaling to the user equipment in the process of transmitting the foregoing configuration information.
  • the DCI of the downlink control information is transmitted by the control channel detected by the user equipment in the PDCCH region and the E-PDCCH region.
  • the format is different.
  • the DCI format of the downlink control information of the first type control channel detected by the user equipment in the PDCCH region is the control signaling format of the uplink scheduling UL_grant, and the downlink control of the second type control channel transmission detected in the E-PDCCH region.
  • the DCI format of the information is the control signaling format of the downlink scheduling DL_grant; or the DCI format of the downlink control information transmitted by the first type of control channel detected by the user equipment in the PDCCH area is the control signaling format of the downlink scheduling DL_grant, and the user equipment is
  • the DCI format of the downlink control information transmitted by the second type control channel detected in the E-PDCCH region is a control signaling format of the uplink scheduling UL_grant.
  • the DCI format of the downlink control information transmitted by the first type of control channel detected in the PDCCH region includes one of DCI formats; the second type of control channel detected in the E-PDCCH region
  • the DCI format of the transmitted downlink control information includes another DCI format.
  • control channel in the PDCCH region may be composed of ( gi )
  • control channel in the E-PDCCH region may be composed of f 2 ( gi ).
  • the signaling format of the control channel transmitted by the user equipment in the PDCCH region and the E-PDCCH region is different.
  • the control channel transmission format detected by the user equipment in the PDCCH region is (gj information, and is detected in the E-PDCCH region.
  • the control channel transmits information of the format f 2 ( gl ).
  • the signaling formats of the first type and the second type of control channel transmitted in the PDCCH region and the E-PDCCH region may be a common configuration of the cell, that is, a control signaling format included in the control channel of the first type.
  • the control signaling format included in the second type of control channel may be publicly configured by the cell.
  • the control signaling format included in the first type of control channel of all user equipments of the cell is the same, and the control signaling format included in the second type control channel is also the same, and the configuration may be predefined.
  • the configuration information may also be sent to the user equipment by means of a system broadcast message.
  • the base station may also configure that each user equipment has different control signaling formats included in the E-PDCCH region (or PDCCH region) detection control channel.
  • the user equipment 1 detects a control channel including DCI format 1 and DCI format 1A in the PDCCH region, and detects a control channel including DCI format 2C and DCI format 2D in the E-PDCCH region; the user equipment 2 is in the PDCCH region.
  • the inner detection includes a control channel in the format of DCI format 3 and DCI format 3A, and detects a control channel including the format DCI format 2B in the E-PDCCH region.
  • the base station may send the UE-specific signaling or the cell-specific signaling to the user equipment in the process of transmitting the foregoing configuration information.
  • the control channel pair detected by the user equipment in the PDCCH region and the E-PDCCH region The search range should be different.
  • the first type of control channel detected by the user equipment in the PDCCH region may be a control channel of a common search interval;
  • the second type of control channel detected in the E-PDCCH region may be a user-specific search interval of the user equipment. Control channel.
  • a method for transmitting a control channel according to an embodiment of the present invention is applied to a method in which a base station transmits a control channel in a scheduling process of a base station to a user equipment, and the method in the embodiment of the present invention is a method performed by a base station, and the flowchart is as shown in FIG. 6 . As shown, including:
  • Step 201 Send scheduling information in a physical downlink control channel PDCCH region by using a first type of control channel.
  • Step 202 Send scheduling information in a second type of control channel in an E-PDCCH region of the evolved physical downlink control channel.
  • the multiple attributes include: an aggregation format of the control channel, a signaling format of the control channel transmission, and a search interval type of the control channel Wait.
  • the control channels of the first type and the second type may include an aggregation format of at least one control channel, and the base station may be in the PDCCH region and the E-PDCCH region.
  • Scheduling information of the user equipment is transmitted on a control channel combined with a completely or partially different control channel unit, wherein the different control channel unit combinations include the number of control channel unit combinations (aggregation level) and/or the format of the control channel unit (such as size, etc.)
  • the resource size of the aggregation format included in the first type control channel that the base station can send in the E-PDCCH region is not smaller than the resource size of the aggregation format included in the second type control channel sent in the PDCCH region.
  • the base station is different in the PDCCH region and the E-PDCCH region.
  • the control channel of the DCI format transmits scheduling information of the user equipment.
  • the DCI format can specifically schedule the control signaling format of the UL_grant or the downlink scheduling DL_grant. Control signaling format, etc.
  • the DCI format used for transmitting the downlink control information in the PDCCH region is the control signaling format of the uplink scheduling UL_grant, and the DCI of the downlink control information transmitted in the second type control channel of the E-PDCCH region is used.
  • the format is the control signaling format of the downlink scheduling DL_grant; or the DCI format of the downlink control information used by the first type of control channel in the PDCCH region is the control signaling format of the downlink scheduling DL_grant, and is in the E-PDCCH region.
  • the DCI format of the downlink control information transmitted by the second type control channel is the control signaling format of the uplink scheduling UL_grant.
  • the base station maps the control channels of the PDCCH region and the E-PDCCH region in different search intervals, such as a common search interval or a user-specific search interval.
  • the base station if the base station is transmitting the scheduling information, if the sizes of the two DCI formats are equal, the base station transmits the scheduling information of one of the DCI formats in the first type of control channel in the PDCCH region; in the E-PDCCH region.
  • the scheduling information of another DCI format is transmitted in the second type of control channel.
  • the base station when the base station sends the scheduling information of the user equipment, the downlink subframe that includes the PDCCH region and the E-PDCCH region needs to be sent to the user equipment, and the user equipment does not know that the user equipment is in the PDCCH region and the E-PDCCH in the downlink subframe.
  • the composition of the PDCCH region needs to be detected blindly.
  • the method for blind detection is as described in the embodiment shown in FIG. 1 and is not mentioned here.
  • the base station carries the scheduling information of the user equipment of the R11 system in the PDCCH area and the E-PDCCH area, and the types of the control channels are different, so that the user equipment of the R11 system can use the two areas.
  • the resources are required, and the user equipment is required to detect different types of control channels in the PDCCH region and the E-PDCCH region, respectively.
  • the user equipment detects only the first type of control channel in the PDCCH region, and detects the second type of control channel in the E-PDCCH region, so that the user equipment of the non-evolved version system needs to perform detection of all possible types of control channels. In this case, the number of control channel detections performed by the user equipment does not increase.
  • the base station may configure the type of the control channel detected by the user equipment. Specifically, the base station may send configuration information to the user equipment, where the configuration information is used to indicate that the user equipment is in the PDCCH area of the physical downlink control channel. Detecting a first type of control channel, and detecting a second type of control channel in an E-PDCCH region of the evolved physical downlink control channel; and the base station may use UE-specific signaling by the user equipment or a cell-specific cell-specific signal Orders are sent to the user device.
  • An embodiment of the present invention provides a user equipment, where the user equipment is a user equipment of the R11 system, and a schematic structural diagram is shown in FIG. 7 , including:
  • the first detecting unit 10 is configured to detect a first type of control channel in a physical downlink control channel PDCCH region;
  • the second detecting unit 11 is configured to detect a second type of control channel in the evolved physical downlink control channel E-PDCCH region; the first type of control channel is different from the second type of control channel, specifically, the first detecting The first type of control channel detected by the unit 10 is different from the at least one attribute of the plurality of attributes of the second type of control channel detected by the second detecting unit 11, the plurality of attributes including: an aggregation format of the control channel, the control channel The signaling format of the transmission or the search interval type of the control channel, and the like.
  • the aggregation formats of the control channels of the first type and the second type are different, the control channels included in the control channel detected by the first detecting unit 10 and the second detecting unit 11 in the PDCCH region and the E-PDCCH region, respectively
  • the aggregation format is completely different or partially different, including the aggregation level of the control channel and/or the format of the control channel unit being completely different or partially different.
  • the detected first format and the second type of control channel include different aggregation format portions, the sum of the number of times of the control channels detected by the first detecting unit 10 and the second detecting unit 11 is not greater than the preset number of detections.
  • the resource size of the aggregation format included in the second type control channel detected by the second detecting unit 11 in the E-PDCCH region is not smaller than the aggregation format of the first type control channel detected by the first detecting unit 10 in the PDCCH region.
  • the size of the resource If the signaling formats of the control channels transmitted by the first type and the second type are different, the downlink control of the first type of control channel and the second type of control channel transmission detected by the first detecting unit 10 and the second detecting unit 11, respectively The control signaling format of the information is different in the DCI format.
  • the DCI format is specifically the control signaling format of the uplink scheduling UL_grant, or the control signaling format of the downlink scheduling DL_grant.
  • the first detecting unit 10 may detect the first type of control channel of the PDCCH region in the common search interval; the second detecting unit 11 may perform a user-specific search at the user equipment.
  • the second type of control channel of the E-PDCCH region is detected within the interval.
  • the detection of the first detecting unit 10 and the second detecting unit 11 described above does not have an absolute order relationship, and may be performed simultaneously or sequentially.
  • the user equipment in the embodiment of the present invention needs the first detecting unit 10 and the second detecting unit 11 to detect the control channel in the PDCCH region and the E-PDCCH region, respectively, so that the user equipment of the R11 system can use the resources of the two regions. And since the control channels of the first type and the second type are different types of control channels, the user equipment detects only one type of control channel in the PDCCH region, and detects another type of control in the E-PDCCH region. The channel, such that the number of control channel detections is not increased relative to the detection of all possible types of control channels by the user equipment of the non-evolved version system.
  • the user equipment of the embodiment of the present invention may further include a configuration unit 12, configured to receive configuration information sent by the base station, where the configuration information is used to indicate the first type and the second type of control channel. .
  • the configuration information may be sent by the base station to the user equipment by using UE-specific signaling by the user equipment or by cell-specific signaling of the cell.
  • An embodiment of the present invention provides a base station, and a schematic structural diagram is shown in FIG. 8 , including:
  • the first sending unit 20 is configured to use the first type in the PDCCH region of the physical downlink control channel.
  • the control channel sends scheduling information
  • the second sending unit 21 is configured to send scheduling information by using a second type of control channel in the evolved physical downlink control channel E-PDCCH region.
  • the control channel of the first type in which the scheduling information sent by the first sending unit 20 is located is different from the at least one attribute of the plurality of attributes of the second type of control channel in which the scheduling information sent by the second sending unit 21 is located, where the multiple The attributes include: an aggregate format of the control channel, a signaling format of the control channel transmission, and a search interval type of the control channel.
  • the combination manner of the control channel units used by the first sending unit 20 and the second sending unit 21 to transmit the user equipment scheduling information in the PDCCH region and the E-PDCCH region is different.
  • the format including the control channel unit aggregation level and/or the control channel unit is different.
  • Control signaling used when the first transmission unit 20 and the second transmission unit 21 transmit user equipment scheduling information in the PDCCH region and the E-PDCCH region if the signaling formats of the control channels transmitted by the first type and the second type are different The format is different, where the DCI format is specifically the control signaling format of the uplink scheduling UL_grant, or the control signaling format of the downlink scheduling DL_grant. And if the sizes of the two DCI formats are equal, the first sending unit 20 and the second sending unit 21 respectively transmit downlink control information of one DCI format in the first type control channel in the PDCCH region, and in the E-PDCCH. The downlink control information of another DCI format is transmitted in the second type of control channel in the area.
  • the first transmitting unit 20 and the second transmitting unit 21 may map the PDCCH region and the E-PDCCH region in different search intervals, such as a common search interval or User-specific search intervals, etc.
  • the first sending unit 20 and the second sending unit 21 respectively send scheduling information of the user equipment of the R11 system in the PDCCH area and the E-PDCCH area, and the type of the control channel used. Not the same, so that the user equipment of the R11 system can use two The resources of the area, and the user equipment is required to perform detection of different types of control channels in the PDCCH area and the E-PDCCH area, respectively.
  • the user equipment detects only one type of control channel in the PDCCH region, and detects another type of control channel in the E-PDCCH region, so that the user equipment of the non-evolved version system needs to perform all possible types of control channels. In terms of detection, the number of control channel detections performed by the user equipment does not increase.
  • the base station in this embodiment may further include: a configuration sending unit 22, configured to send configuration information to the user equipment, where the configuration information is used to indicate that the user equipment is in a physical downlink control channel PDCCH area.
  • a configuration sending unit 22 configured to send configuration information to the user equipment, where the configuration information is used to indicate that the user equipment is in a physical downlink control channel PDCCH area.
  • a first type of control channel is detected, and a second type of control channel is detected in the evolved physical downlink control channel E-PDCCH region.
  • the configuration information may be that the configuration sending unit 22 of the base station sends the UE-specific signaling through the user equipment, or sends the information to the user equipment through the cell-specific cell-specific signaling.
  • the embodiment of the present invention further provides a receiving and transmitting system for a control channel, including a base station and a user equipment, where the base station is configured to send a downlink subframe to the user equipment, and the structure thereof can be as shown in FIG. 8; Blind detection is performed at the time of frame, and its structure can be as shown in FIG.
  • the method performed by the base station and the user equipment may be respectively described in the corresponding embodiments in FIG. 6 and FIG. 2, and details are not described herein.
  • the program may be stored in a computer readable storage medium, and the storage medium may include: Read only memory (ROM), random access memory (RAM), magnetic or optical disk, and the like.

Abstract

本发明实施例公开了控制信道的接收和发送方法和装置,应用于通信技术领域。本发明实施例中基站在下行子帧的PDCCH区域和E-PDCCH区域都承载对R11系统的用户设备的调度信息,这样用户设备需要分别在PDCCH区域和E-PDCCH区域内检测控制信道,使得R11系统的用户设备可以使用两个区域的资源。且用户设备在PDCCH区域内只检测第一类型的控制信道,而在进行E-PDCCH区域内检测另一类型的控制信道,本发明实施例中的方法并没有增加控制信道检测的次数。

Description

控制信道的接收和发送方法和装置
本申请要求于 2011 年 07 月 28 日提交中国专利局、 申请号为 201110213895.3、 发明名称为"控制信道的接收和发送方法和装置 "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, 特别涉及控制信道的接收和发送方法和装置。 背景技术
现有长期演进(Long Term Evolution, LTE) 的通信系统中, 基站需要通 过下行子帧发送对用户设备的调度信息,该下行子帧的时频资源被划分为两个 区域, 即物理下行控制信道(Physical Downlink Control Channel, PDCCH ) 区域和物理下行数据信道(Physical Downlink Statistics Channel, PDSCH ) 区域。 其中: PDCCH区域用于传输基站对用户设备下行或上行数据传输的调度 指示信令, 包括数据信道的资源分配, 调制编码方式, 多天线传输或混合自动 重传请求 ( Hybrid Automatic Repeat Request, HARQ )过程相关信息等; 而 PDSCH区域用来承载具体的调度数据。
参考图 1所示, 在一个下行子帧内, PDSCH区域和 PDCCH区域采取时分复 用方式, PDCCH区域(即图 1中斜线填充的部分) 占用下行子帧的前 N个正交 频分复用 ( Orthogonal Frequency Division Multiplexing, 0腦)符号, 其 中 N是动态可变的, 且小于等于 3, PDSCH区域占用剩余的 0FDM符号。
基站对多个用户设备的调度信息可以复用在一个子帧中的 PDCCH区域,每 个用户设备对应的 PDCCH 区域可以由 1/2/4/8 个控制信道单元 (Control Channel Element, CCE)组成, 这些组成分别对应不同的编码码率, 这样在下 行子帧的 PDCCH区域中就通过 CCE组成了不同用户设备的 PDCCH区域,从而 7 载基站对用户设备的调度信息。用户设备在接收基站发送的下行子帧时, 并不 知道该用户设备对应的 PDCCH区域由哪几个 CCE组成,这就需要用户设备在公 共搜索区间和特定搜索区间进行对应 PDCCH区域的盲检测,具体地是在接收的 下行子帧中检测所有可能 CCE组合方式(即 1、 2、 4和 8个 CCE )的控制信道, 直到检测到该用户设备对应的 PDCCH区域为止。
为了提供更高的频谱效率和小区边缘用户性能,在一种 LTE系统的演进版 本(Release, R ) 系统即 R11系统中, 引入了多点协作( CoMP )和更加灵活的 多输入多输出 (Mul t iple- Input Mul t ip le-Out-put , MIMO )调度机制, 使得 小区同时服务的用户设备数显著增加, 则基站发送的下行子帧中, 用最大 3 个 OFDM符号的 PDCCH区域无法满足 R11系统的需求, 需要定义新的 PDCCH资 源,即扩展物理下行控制信道( Extended Phys ica l Downl ink Control Channel , E-PDCCH ) 区域, 使用原来 PDSCH区域的部分时频资源, 且可以与 PDSCH区域 采用频分复用或时频分复用的方式进行复用。
为了不增加用户设备进行控制信道的盲检测次数,现有的一种方案是限制 基站对 R11系统的用户设备的上下行调度信息只在 E-PDCCH区域中传输,这样 就只需用户设备在公共搜索区间和特定搜索区间进行 E-PDCCH区域的盲检测。 但是如果 LTE系统的非演进版本( R8/9/10 )系统的用户设备较少,使得 PDCCH 区域没有被完全占用,而 R11系统的用户设备也无法使用剩余的 PDCCH区域资 源, 造成了资源利用率低。 发明内容
本发明实施例提供控制信道的接收和发送方法和装置,使得在不增加控制 信道检测次数的基础上, 增加资源利用率。
本发明实施例提供一种控制信道的接收方法, 包括:
在物理下行控制信道 PDCCH区域内检测第一类型的控制信道;
在演进的物理下行控制信道 E-PDCCH区域内检测第二类型的控制信道, 所述第一类型的控制信道与所述第二类型的控制信道不同。
本发明实施例提供一种控制信道的发送方法, 包括:
在物理下行控制信道 PDCCH 区域内以第一类型的控制信道发送调度信 在演进的物理下行控制信道 E-PDCCH区域内以第二类型的控制信道发送 调度信息;
所述第一类型的控制信道和第二类型的控制信道不同。
本发明实施例提供还提供一种用户设备, 包括:
第一检测单元,用于在物理下行控制信道 PDCCH区域内检测第一类型的 控制信道;
第二检测单元, 用于在演进的物理下行控制信道 E-PDCCH区域内检测第 二类型的控制信道; 所述第一类型的控制信道和第二类型的控制信道不同。
本发明实施例提供还提供一种基站, 包括:
第一发送单元,用于在物理下行控制信道 PDCCH区域内以第一类型的控 制信道发送调度信息;
第二发送单元, 用于在演进的物理下行控制信道 E-PDCCH区域内以第二 类型的控制信道发送调度信息;所述第一类型的控制信道和第二类型的控制信 道不同。
可见, 本发明实施例中基站在下行子帧的 PDCCH区域和 E-PDCCH区 域都承载对 R11 系统的用户设备的调度信息, 这样用户设备需要分别在对应 的 PDCCH区域和 E-PDCCH区域内检测控制信道,使得 R11系统的用户设备 可以使用两个区域的资源。且本发明实施例中由于在 PDCCH区域和 E-PDCCH 区域内分别检测类型不同的控制信道,则在 PDCCH区域内只检测第一种类型 的控制信道, 而在进行 E-PDCCH区域内检测某种格式的另一种类型的控制信 道,这样相对于非演进版本系统的用户设备需要进行所有可能类型控制信道的 检测来说, 本发明实施例中的方法并没有增加控制信道检测的次数。 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筒单地介绍,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是现有技术中下行子帧的结构示意图;
图 2是本发明实施例提供的一种控制信道的接收方法流程图;
图 3a是本发明实施例中一种下行子帧的结构示意图;
图 3b是本发明实施例中另一种下行子帧的结构示意图;
图 4是本发明实施例中基站对多个用户设备的调度信息复用在一个下行 子帧中的 PDCCH区域的结构图;
图 5是本发明实施例中下行子帧中 PDCCH区域的聚合格式的结构图; 图 6是本发明实施例提供的一种控制信道的发送方法流程图;
图 7是本发明实施例提供的一种用户设备的结构示意图;
图 8是本发明实施例提供的一种基站的结构示意图。 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。
本发明实施例提供一种控制信道的接收方法,应用于在控制信道接收的过 程中, 用户设备对控制信道的盲检测, 本实施例的方法是 R11 系统的用户设 备所执行的方法, 流程图如图 2所示, 包括: 步骤 101 ,在物理下行控制信道 PDCCH区域内检测第一类型的控制信道; 步骤 102, 在演进的物理下行控制信道 E-PDCCH区域内检测第二类型的 控制信道。
可以理解,基站可以将对用户设备上行或下行数据传输的调度信息承载到 下行子帧发送给用户设备, 本发明实施例中基站发送的下行子帧内包括 PDCCH区域、 PDSCH区域和 E-DCCH区域, 其中, PDSCH区域和 PDCCH 区域采取时分复用方式, PDCCH区域占用下行子帧的前 N个 OFDM符号, PDSCH区域占用剩余的 OFDM符号; 而 E-PDCCH区域使用原来 PDSCH区 域的部分时频资源, 可以与 PDSCH区域采用频分复用 (如图 3a所示), 也可 以与 PDSCH区域采用时频分复用 (如图 3b所示)。
PDCCH区域中资源的基本组成单元是 CCE,每个 CCE映射于 PDCCH区 域内的一组特定时频格点( Resource Element, RE ), 基站对多个用户设备的调 度信息可以复用在一个下行子帧中的 PDCCH 区域, 每个用户设备对应的 PDCCH区域可以由 1、 2、 4或 8个 CCE的组合方式组成。例如,如图 4所示, CCE1到 CCE4组成用户设备 ( UE ) 1对应的 PDCCH区域, CCE5和 CCE6 组成用户设备 2对应的 PDCCH区域, CCE7和 CCE8分别组成用户设备 3和 4对应的 PDCCH区域。
E-PDCCH 区域中资源的基本组成单元是演进的 CCE ( E-CCE ), 每个 E-CCE映射在 E-PDCCH区域内的一组特定时频格点上, 该 E-CCE的结构和 大小可以与 PDCCH区域中 CCE的结构和大小不同, 也可以相同。
基站分别采用不同类型的控制信道在下行子帧的 PDCCH 区域和 E-PDCCH区域中承载对用户设备的调度信息, 比如基站在 PDSCH区域采用 N1个 CCE组合,及在 E-PDCCH区域采用 N2个 E-CCE组合来传输基站对某 一用户设备下行或上行数据传输的调度指示信令。但是用户设备并不知道该用 户设备对应的 PDCCH区域和 E-PDCCH区域分别是由哪些控制信道单元组成, 这样用户设备在接收下行子帧时, 需要对该用户设备对应的 PDCCH 区域和 E-PDCCH区域进行盲检测。 则在用户设备进行盲检测的过程中, 检测的第一 类型和第二类型的控制信道不同,具体地第一类型和第二类型的控制信道的多 个属性中的至少一个属性不同, 该多个属性包括: 控制信道的聚合格式, 控制 信道传输的信令格式和控制信道的搜索区间类型等。 其中:
( 1 )控制信道的聚合格式是一种树状结构的控制信道单元组合方式, 具 体地, 如图 5所示, 将控制信道单元进行编号, PDCCH区域由序号连续的控 制信道单元组成, 并用控制信道单元组成的数量(即级别 )来表示控制信道的 聚合格式, 记为 { 1,2,4,8} , 则每个 PDCCH 区域可以表示为 i*f ( i=0,l , 2 )。
第一类型的控制信道可以包括至少一种聚合格式,第二类型的控制信道也 可以包括至少一种聚合格式,则第一类型和第二类型的控制信道的聚合格式不 同是指第一类型的控制信道所包括的聚合格式与第二类型的控制信道所包括 的聚合格式完全不同或部分不同, 则用户设备在 PDCCH区域和 E-PDCCH区 域内进行检测时所检测的控制信道单元的组合方式完全或部分不同,包括控制 信道单元的组合数量(即控制信道的聚合级别)和 /或控制信道单元的格式完 全或部分不同, 比如控制信道单元的大小或结构等不同。
( 2 )控制信道传输的信令格式是指传输调度信息的控制信道的具体内容 等。如果第一类型和第二类型的控制信道传输的信令格式不同, 则用户设备在 PDCCH区域和 E-PDCCH区域内进行检测时所检测的控制信道的具体内容不 同, 具体地, 用户设备在 PDCCH区域和 E-PDCCH区域内检测的控制信道传 输不同下行控制信令格式(DCI format )的下行控制信息, 其中 DCI format具 体可以包括第一 DCI format组,第二 DCI format组,和第三 DCI format组等, 其中第一 DCI format组包括格式 a和格式 b , 而第二第一 DCI format组包括 格式 c和格式 d。 ( 3 )搜索区间类型是指用户设备搜索下行子帧的传输资源范围, 包括公 共搜索区间类型和用户特定搜索区间类型,其中在公共搜索区间用于传输公共 控制信息(如, 系统广播消息、 寻呼消息、 和随即接入消息等)的调度指示信 令; 在用户特定搜索区间用来传输用户设备上下行数据传输的调度指示信令。 一般情况下, 公共搜索空间固定包含 0到 15的控制信道单元, 而用户特定搜 索空间的起始由用户标识(ID )和 PDCCH的聚合格式决定。 如果第一类型和 第二类型的控制信道的搜索区间类型不同, 则用户设备在 PDCCH 区域和 E-PDCCH区域内检测的控制信道所在搜索区间不同。
需要说明的是, 上述步骤 101和 102没有绝对的顺序关系, 图 2中所示的 只是一种具体例子。
可见, 本发明实施例中基站在下行子帧的 PDCCH区域和 E-PDCCH区域 都承载对 R11系统的用户设备的调度信息, 这样用户设备需要分别在 PDCCH 区域和 E-PDCCH区域内检测控制信道,使得 R11系统的用户设备可以使用两 个区域的资源。 且本发明实施例中由于在 PDCCH区域和 E-PDCCH区域内分 别检测类型不同的控制信道,则在 PDCCH区域内只检测一种类型的控制信道, 而在 E-PDCCH区域内检测另一种类型的控制信道, 这样相对于非演进版本系 统的用户设备需要进行所有可能类型控制信道的检测来说,本发明实施例中的 方法并没有增加控制信道检测的次数。
需要说明的是,上述用户设备进行检测的第一类型和第二类型的控制信道 可以由基站侧来配置,基站可以通过预定义或广播的方式发送配置信息给用户 设备,该配置信息用于指示该用户设备进行检测的第一类型和第二类型的控制 信道, 且该配置信息可以是通过广播消息, 或高层信令通知等消息进行发送。
且基站可以配置多个用户设备在 PDCCH区域(或 E-PDCCH区域) 内检 测的控制信道类型相同, 也可以配置各个用户设备在 PDCCH 区域 (或 E-PDCCH区域) 内检测的控制信道类型不同。 在一个具体的实施例中,如果第一类型和第二类型的控制信道的聚合格式 部分不同或完全不同时, 则用户设备在 PDCCH区域检测的第一类型的控制信 道和在 E-PDCCH区域内检测的第二类型的控制信道所包括的聚合格式完全不 同或部分不同。 具体地,
( 1 )如果控制信道的聚合格式完全不同时:
假设有 N中控制信道的聚合格式即 {f0, f15 f2, · · · · · · , fN-1, } , 在 PDCCH 区域可由 ( i=0,...N-l)个 CCE组成, 在 E-PDCCH 区域内控制信道可由 ( i=0, ...N- 1)个 E-CCE组成。 则用户设备在 PDCCH区域内进行检测时, 检测 聚合格式为 的控制信道, 在 E-PDCCH区域内进行检测时, 检 测聚合格式为 ( < i N ) 的控制信道。
且用户设备检测的控制信道的聚合格式 中, i可以取 0到 N中的任意一 个或多个值, 且在 PDCCH区域和 E-PDCCH区域内检测时, 所取的 i值没有 交集。
例如, 下表 1 所示出聚合格式完全不同的第一类型和第二类型的控制信 道,则 R11系统的用户设备在 PDCCH区域内检测聚合格式为 { 1*CCE, 2*CCE} 的控制信道, 且检测次数为 N1+N2; 而在 E-PDCCH 区域内检测聚合格式为 {4*E-CCE, 8*E-CCE}的控制信道, 且检测次数为 N3+N4。 则 R11 系统的用 户设备在 PDCCH区域和 E-PDCCH区域内进行检测的总次数 Nl +N2+N3+N4 , 相对于非演进版本系统的用户设备在 PDCCH区域内检测聚合格式为 {2*CCE, 1*CCE, 4*CCE, 8*CCE}的控制信道的次数没有增加。
表 1 公共和用户特定搜索区间 检测次数 类型 聚合级别 控制信道单元 第一类型的 1 CCE N1 控制信道 2 CCE N2 第二类型的 4 E-CCE N3 控制信道 8 E-CCE N4
( 2 ) 为了进一步增加 PDCCH 资源分配的灵活性, 在 PDCCH 区域和 E-PDCCH区域内进行检测的控制信道所包括的聚合格式, 即控制信道单元的 组合方式可以部分不同,这就需要用户设备在 PDCCH区域内检测的第一类型 的控制信道的次数和在 E-PDCCH区域内检测的第二类型的控制信道的次数之 和不大于预置的检测次数。
具体地, 用户设备如果在 PDCCH区域内进行检测时, 检测聚合格式为 fi ( 0 i N! ) 的控制信道, 在 E-PDCCH区域内进行检测时, 检测聚合格式为 fi ( N2 < i < N ) 的控制信道, 其中 N2 < N1。 而为了不增加检测次数, 假设在 PDCCH区域内检测 Ml次第一类型的控制信道,在 E-PDCCH区域内检测 M2 次第二类型的控制信道, 则 M1+M2不大于预置的检测次数 M, 这里 M可以 是非演进版本系统的用户设备 ( R8/9/10系统的用户设备)在 PDCCH区域内 检测的控制信道次数。
且用户设备检测控制信道的聚合格式 中, i可以取 0到 N中的任意一个 或多个值, 且在 PDCCH区域和 E-PDCCH区域内检测时, 所取的 i值有交集。
例如,下表 2中所示出聚合格式部分不同的第一类型和第二类型的控制信 道,则 R11系统的用户设备在 PDCCH区域内检测聚合格式为 { 1*CCE, 2*CCE} 的控制信道, 且检测次数为 X1+X2; 而在 E-PDCCH 区域内检测聚合格式为 {2*E-CCE, 4*E-CCE}的控制信道, 且检测次数为 X3+X4。 则 R11 系统的用 户设备在 PDCCH区域和 E-PDCCH区域内进行检测的总次数 X3+X4+ X1+X2, 如果检测控制信道的次数之和 M1+M2不大于预置的检测次数 M,则相对于非 演进版本系统的用户设备在 PDCCH区域内检测聚合格式为 {2*CCE, 1*CCE, 4*CCE, 8*CCE}的控制信道的次数也没有增加。
Figure imgf000012_0001
Figure imgf000012_0002
由于 E-PDCCH区域使用的是原 PDSCH区域的资源,可用资源比较充足, 且可以使用专用导频进行解调和多天线传输,传输性能也会好于 PDCCH区域 的传输性能。 因此用户设备在 E-PDCCH区域内检测的第二类型的控制信道所 包括聚合格式的资源大小, 不小于在 PDCCH区域内检测的第一类型的控制信 道所包括聚合格式的资源大小,这样可以进一步提高控制信道性能和资源利用 率。 例如, 控制信道的聚合格式包括 { 1 , 2, 4, 8} , 则用户设备可以在 PDCCH 区域内检测聚合格式为 { 1 , 2}的控制信道, 用户设备可以在 E-PDCCH区域内 检测聚合格式为 {4, 8}的控制信道。
需要说明的是, 用户设备在 PDCCH区域和 E-PDCCH区域内进行检测的 控制信道的聚合格式可以是小区公共配置, 即基站可以配置所有用户设备在 PDCCH区域(或 E-PDCCH区域) 内检测相同聚合格式的控制信道, 并通过 系统预定义或广播消息的方式将配置信息发给用户设备;
基站也可以配置每个用户设备在 PDCCH区域(或 E-PDCCH区域)检测 不同聚合格式的控制信道。 例如, 基站可以配置用户设备 1在 PDCCH区域内 检测聚合格式为 1和 的控制信道, 并在 E-PDCCH区域内检测聚合格式为 4 和 8的控制信道; 而用户设备 2在 PDCCH区域内检测聚合格式为 1的控制信 道, 并在 E-PDCCH区域内检测按照聚合格式为 2、 4和 8的控制信道。
而基站在配置用户设备检测的控制信道聚合格式时,可以通过高层信令通 知该用户设备,具体地可以在高层信令通知中将控制信道聚合格式与用户设备 的标识(ID )绑定, 比如, 有 S种控制信道的聚合格式, 可以配置某一用户设 备检测第 s种聚合格式的控制信道, 其中 s为用户设备的标识对 S取模, 即 s=mod ( UE—ID, S )。
且基站在发送上述配置信息的过程中, 可以通过用户设备的特定(UE - specific )信令, 或小区特定( cell - specific )信令发送给用户设备。
在另一个具体的实施例中,如果第一类型和第二类型的控制信道传输的信 令格式不同时, 则用户设备在 PDCCH区域和 E-PDCCH区域内检测的控制信 道传输下行控制信息的 DCI format不同。
例如,用户设备在 PDCCH区域内检测的第一类型控制信道传输下行控制 信息的 DCI format为上行调度 UL_grant的控制信令格式, 而在 E-PDCCH区 域内检测的第二类型控制信道传输的下行控制信息的 DCI format为下行调度 DL_grant的控制信令格式; 或, 用户设备在 PDCCH区域内检测的第一类型控 制信道传输的下行控制信息的 DCI format为下行调度 DL_grant的控制信令格 式, 用户设备在 E-PDCCH区域内检测的第二类型控制信道传输的下行控制信 息的 DCI format为上行调度 UL_grant的控制信令格式。
且如果两种 DCI format的大小相等,则在 PDCCH区域内检测的第一类型 控制信道传输的下行控制信息的 DCI format 包括其中一种 DCI format; 在 E-PDCCH区域内检测的第二类型控制信道传输的下行控制信息的 DCI format 包括其中另一种 DCI format。从而保证在第一类型的控制信道传输的下行控制 信息包括多种大小不同的控制信令格式 DCI format,且在第二类型的控制信道 传输的下行控制信息包括多种大小不同的控制信令格式 DCI format。
具体地,假设有 M种控制信道传输的信令格式即 {g。, gl , g2, ...... , gN-1 , } , 在 PDCCH区域的控制信道可以由 ( gi )组成, 在 E-PDCCH区域内的控制 信道可由 f2 ( gi )组成。 则用户设备在 PDCCH区域和 E-PDCCH区域内检测 的控制信道传输的信令格式不同, 例如, 用户设备在 PDCCH区域内检测的控 制信道传输格式为 ( gj 的信息, 在 E-PDCCH区域内检测的控制信道传输 格式为 f2 ( gl ) 的信息。
需要说明的是, 在 PDCCH区域和 E-PDCCH区域内检测的第一类型和第 二类型控制信道传输的信令格式可以是小区公共配置,即第一类型的控制信道 所包括的控制信令格式,和第二类型控制信道所包括的控制信令格式可以是小 区公共配置的。在这种情况下,对于小区所有用户设备的第一类型的控制信道 所包括的控制信令格式相同,且第二类型控制信道所包括的控制信令格式也是 相同的, 此配置可以是预定义的,也可以通过系统广播消息的方式将配置信息 发给用户设备。
基站也可以配置每个用户设备在 E-PDCCH区域(或 PDCCH区域 )检测 控制信道所包括的控制信令格式是不同的。 例如, 用户设备 1在 PDCCH区域 内检测包括格式为 DCI format 1和 DCI formatlA的控制信道, 并在 E-PDCCH 区域内检测包括格式为 DCI format2C和 DCI format 2D的控制信道;用户设备 2在 PDCCH区域内检测包括格式为 DCI format 3和 DCI format 3A的控制信 道, 并在 E-PDCCH区域内检测包括格式为 DCI format 2B的控制信道。
且基站在发送上述配置信息的过程中, 可以通过用户设备的特定(UE - specific )信令, 或小区特定( cell - specific )信令发送给用户设备。
在其他具体的实施例中,如果第一类型和第二类型的控制信道的搜索区间 类型不同, 则用户设备在 PDCCH区域和 E-PDCCH区域内检测的控制信道对 应的搜索区间不同。 具体地, 用户设备在 PDCCH区域内检测的第一类型的控 制信道可以是公共搜索区间的控制信道; 在 E-PDCCH区域内检测的第二类型 的控制信道可以是该用户设备的用户特定搜索区间的控制信道。
本发明实施例提供的一种控制信道的发送方法,应用于基站对用户设备的 调度过程中,基站对控制信道的发送, 本发明实施例的方法是基站所执行的方 法, 流程图如图 6所示, 包括:
步骤 201 , 在物理下行控制信道 PDCCH区域内以第一类型的控制信道发 送调度信息;
步骤 202, 在演进的物理下行控制信道 E-PDCCH区域内以第二类型的控 制信道发送调度信息;
其中第一类型的控制信道和第二类型的控制信道的多个属性中至少一个 属性不同, 该多个属性包括: 控制信道的聚合格式, 控制信道传输的信令格式 和控制信道的搜索区间类型等。 具体地,
如果第一类型和第二类型的控制信道的聚合格式不同时,第一类型和第二 类型的控制信道都可以包括至少一种控制信道的聚合格式, 则基站在 PDCCH 区域和 E-PDCCH区域会以完全或部分不同的控制信道单元组合的控制信道发 送用户设备的调度信息,其中不同控制信道单元组合包括控制信道单元组合数 量(聚合级别)和 /或控制信道单元的格式(比如大小等) 完全或部分不同; 且基站可以在 E-PDCCH区域内发送的第一类型控制信道所包括聚合格式的资 源大小, 不小于在 PDCCH区域内发送的第二类型控制信道所包括聚合格式的 资源大小。
如果第一类型和第二类型的控制信道传输的信令格式不同,即第一类型和 第二类型的控制信道传输调度信息的信令格式不同时,基站在 PDCCH区域和 E-PDCCH 区域以不同 DCI format 的控制信道发送用户设备的调度信息。 该 DCI format具体可以上行调度 UL_grant的控制信令格式,或下行调度 DL_grant 的控制信令格式等。 例如, 在 PDCCH区域内的第一类型控制信道用来传输下 行控制信息的 DCI format 为上行调度 UL_grant 的控制信令格式, 而在 E-PDCCH区域的第二类型控制信道传输的下行控制信息的 DCI format为下行 调度 DL_grant的控制信令格式; 或, 在 PDCCH区域内的第一类型控制信道 用来传输的下行控制信息的 DCI format为下行调度 DL_grant的控制信令格式, 在 E-PDCCH 区域内的第二类型控制信道传输的下行控制信息的 DCI format 为上行调度 UL_grant的控制信令格式。
如果第一类型和第二类型的控制信道的搜索区间类型不同时, 基站将 PDCCH区域和 E-PDCCH区域的控制信道映射在不同的搜索区间, 比如公共 搜索区间或用户特定搜索区间等。
需要说明的是, 如果基站在发送调度信息时, 如果两种 DCI format的大 小相等, 则基站在 PDCCH 区域内的第一类型控制信道中传输其中一种 DCI format的调度信息; 在 E-PDCCH区域内的第二类型控制信道中传输其中另一 种 DCI format的调度信息。
可以理解, 基站在发送用户设备的调度信息时, 需要发送包括 PDCCH区 域和 E-PDCCH区域的下行子帧给用户设备, 而用户设备并不知道该用户设备 在下行子帧中 PDCCH区域和 E-PDCCH区域的组成, 需要进行盲检测, 盲检 测的方法如图 1所示实施例所述, 在此不再赞述。
可见, 本发明实施例中基站在 PDCCH区域和 E-PDCCH区域都承载 R11 系统的用户设备的调度信息, 且发送的控制信道的类型不相同, 这样使得 R11 系统的用户设备可以使用两个区域的资源,且需要用户设备分别在 PDCCH区 域和 E-PDCCH区域内检测不同类型的控制信道。 则用户设备在 PDCCH区域 内只检测第一类型的控制信道, 而在 E-PDCCH区域内检测第二类型的控制信 道,这样相对于非演进版本系统的用户设备需要进行所有可能类型控制信道的 检测来说, 用户设备进行的控制信道检测次数并没有增加。 在一种具体的实施例中,基站可以对用户设备检测的控制信道的类型进行 配置, 具体地, 基站可以发送配置信息给用户设备, 该配置信息用于指示用户 设备在物理下行控制信道 PDCCH区域内检测第一类型的控制信道,和演进的 物理下行控制信道 E-PDCCH区域内检测第二类型的控制信道; 且基站可以通 过用户设备特定 UE - specific信令,或通过小区特定 cell - specific信令等发送 给用户设备的。
本发明实施例提供一种用户设备, 该用户设备是 R11 系统的用户设备, 结构示意图如图 7所示, 包括:
第一检测单元 10,用于在物理下行控制信道 PDCCH区域内检测第一类型 的控制信道;
第二检测单元 11 ,用于在演进的物理下行控制信道 E-PDCCH区域内检测 第二类型的控制信道; 所述第一类型的控制信道和第二类型的控制信道不同, 具体地第一检测单元 10检测的第一类型的控制信道,和第二检测单元 11检测 的第二类型的控制信道的多个属性中的至少一个属性不同, 该多个属性包括: 控制信道的聚合格式, 控制信道传输的信令格式或控制信道的搜索区间类型 等。
可以理解,如果第一类型和第二类型的控制信道的聚合格式不同, 则第一 检测单元 10和第二检测单元 11分别在 PDCCH区域和 E-PDCCH区域内检测 的控制信道所包括的控制信道聚合格式完全不同或部分不同,包括控制信道的 聚合级别和 /或控制信道单元的格式完全不同或部分不同。 当检测的第一类型 和第二类型的控制信道所包括的聚合格式部分不同时, 第一检测单元 10和第 二检测单元 11分别检测的控制信道的次数之和不大于预置的检测次数。 且第 二检测单元 11在 E-PDCCH区域内检测的第二类型控制信道所包括聚合格式 的资源大小, 不小于第一检测单元 10在 PDCCH区域内检测的第一类型控制 信道所包括聚合格式的资源大小。 如果第一类型和第二类型的控制信道传输的信令格式不同,则第一检测单 元 10和第二检测单元 11分别检测的第一类型的控制信道和第二类型的控制信 道传输的下行控制信息的控制信令格式 DCI format不同; 其中 DCI format具 体为上行调度 UL_grant的控制信令格式, 或下行调度 DL_grant的控制信令格 式等。
如果第一类型和第二类型的控制信道的搜索区间类型不同,第一检测单元 10可以在公共搜索区间检测 PDCCH区域的第一类型控制信道;第二检测单元 11 可以在用户设备的用户特定搜索区间内检测 E-PDCCH 区域的第二类型控 制信道。
需要说明的是,上述第一检测单元 10和第二检测单元 11的检测没有绝对 的顺序关系, 可以同时进行, 也可以顺序进行。
本发明实施例的用户设备中需要第一检测单元 10和第二检测单元 11分别 在 PDCCH区域和 E-PDCCH区域内检测控制信道, 使得 R11系统的用户设备 可以使用两个区域的资源。且由于进行第一类型和第二类型的控制信道是类型 不同的控制信道, 则用户设备只在 PDCCH区域内检测一种类型的控制信道, 而在 E-PDCCH区域内检测另一种类型的控制信道, 这样相对于非演进版本系 统的用户设备需要进行所有可能类型控制信道的检测来说,并没有增加控制信 道检测的次数。
在一个具体的实施例中, 本发明实施例的用户设备还可以包括配置单元 12, 用于接收基站发送的配置信息, 所述配置信息用于指示所述第一类型和第 二类型的控制信道。
且该配置信息可以是基站通过用户设备特定 UE - specific信令,或通过小 区特定 cell - specific信令发送给用户设备的。
本发明实施例提供一种基站, 结构示意图如图 8所示, 包括:
第一发送单元 20,用于在物理下行控制信道 PDCCH区域内以第一类型的 控制信道发送调度信息;
第二发送单元 21 ,用于在演进的物理下行控制信道 E-PDCCH区域内以第 二类型的控制信道发送调度信息。
其中第一发送单元 20发送的调度信息所在第一类型的控制信道, 和第二 发送单元 21发送的调度信息所在的第二类型的控制信道的多个属性中至少一 个属性不同, 所述多个属性包括: 控制信道的聚合格式, 控制信道传输的信令 格式和控制信道的搜索区间类型。 具体地,
如果第一类型和第二类型的控制信道的聚合格式不同时, 第一发送单元 20和第二发送单元 21在 PDCCH区域和 E-PDCCH区域发送用户设备调度信 息所使用的控制信道单元组合方式不同, 包括控制信道单元聚合级别和 /或控 制信道单元的格式不同。
如果第一类型和第二类型的控制信道传输的信令格式不同时,第一发送单 元 20和第二发送单元 21在 PDCCH区域和 E-PDCCH区域发送用户设备调度 信息时所使用的控制信令格式不同,其中 DCI format具体为上行调度 UL_grant 的控制信令格式, 或下行调度 DL_grant的控制信令格式等。 且如果两种 DCI format的大小相等, 则第一发送单元 20和第二发送单元 21分别在 PDCCH区 域内的第一类型控制信道中传输其中一种 DCI format的下行控制信息, 而在 E-PDCCH区域内的第二类型控制信道中传输其中另一种 DCI format的下行控 制信息。
如果第一类型和第二类型的控制信道的搜索区间类型不同时,第一发送单 元 20和第二发送单元 21可以将 PDCCH区域和 E-PDCCH区域映射在不同的 搜索区间, 比如公共搜索区间或用户特定搜索区间等。
可见,本发明实施例的中基站中第一发送单元 20和第二发送单元 21分别 在 PDCCH区域和 E-PDCCH区域内都发送了 R11系统的用户设备的调度信息, 且使用的控制信道的类型不相同, 这样使得 R11 系统的用户设备可以使用两 个区域的资源, 且需要用户设备在 PDCCH区域和 E-PDCCH区域分别进行不 同类型控制信道的检测。则用户设备在 PDCCH区域内只检测一种类型的控制 信道, 而在 E-PDCCH区域内检测另一种类型的控制信道, 这样相对于非演进 版本系统的用户设备需要进行所有可能类型控制信道的检测来说,用户设备进 行的控制信道检测次数并没有增加。
在一个具体的实施例中, 本实施例的基站还可以包括: 配置发送单元 22, 用于发送配置信息给用户设备,所述配置信息用于指示所述用户设备在物理下 行控制信道 PDCCH区域内检测第一类型控制信道,和在演进的物理下行控制 信道 E-PDCCH区域检测第二类型控制信道。
且该配置信息可以是基站的配置发送单元 22 通过用户设备特定 UE - specific信令, 或通过小区特定 cell - specific信令发送给用户设备的。
本发明实施例还提供一种控制信道的接收和发送系统,包括基站和用户设 备, 基站用于发送下行子帧给用户设备, 其结构可以如图 8所示; 用户设备用 于在接收下行子帧时进行盲检测, 其结构可以如图 7所示。
且基站和用户设备所执行的方法可以分别如图 6和图 2对应实施例所述, 在此不进行赘述。
本领域普通技术人员可以理解上述实施例的各种方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成,该程序可以存储于一计算机可读 存储介质中,存储介质可以包括:只读存储器( ROM )、随机存取存储器( RAM )、 磁盘或光盘等。
以上对本发明实施例所提供的控制信道的接收和发送方法和装置,进行了 上实施例的说明只是用于帮助理解本发明的方法及其核心思想; 同时,对于本 领域的一般技术人员,依据本发明的思想,在具体实施方式及应用范围上均会 有改变之处, 综上所述, 本说明书内容不应理解为对本发明的限制。

Claims

权 利 要 求
1、 一种控制信道的接收方法, 其特征在于, 包括:
在物理下行控制信道 PDCCH区域内检测第一类型的控制信道; 在演进的物理下行控制信道 E-PDCCH区域内检测第二类型的控制信道, 所述第一类型的控制信道与所述第二类型的控制信道不同。
2、 如权利要求 1所述的方法, 其特征在于, 所述第一类型和第二类型的 控制信道的多个属性中的至少一个属性不同,所述多个属性包括控制信道的聚 合格式, 控制信道传输的信令格式和控制信道的搜索区间类型。
3、 如权利要求 2所述的方法, 其特征在于,
所述第一类型的控制信道包括至少一种聚合格式;所述第二类型的控制信 道包括至少一种聚合格式;
所述第一类型的控制信道与所述第二类型的控制信道的聚合格式不同具 体包括:
所述第一类型的控制信道所包括的聚合格式与第二类型的控制信道所包 括的聚合格式完全不同或部分不同。
4、 如权利要求 3所述的方法, 其特征在于, 所述第一类型的控制信道所 包括的聚合格式与第二类型的控制信道所包括的聚合格式完全不同或部分不 同具体包括: 所述第一类型和第二类型的控制信道的聚合级别, 和 /或控制信 道单元的格式完全不同或部分不同。
5、 如权利要求 3所述的方法, 其特征在于, 所述第二类型的控制信道所 包括的聚合格式的资源大小,不小于所述第一类型的控制信道所包括的聚合格 式的资源大小。
6、 如权利要求 2所述的方法, 其特征在于, 所述第一类型和第二类型的 控制信道传输的信令格式不同具体包括:
所述第一类型的控制信道和第二类型的控制信道传输的下行控制信息的 控制信令格式 DCI format不同。
7、 如权利要求 6所述的方法, 其特征在于,
所述第一类型的控制信道和第二类型的控制信道传输的下行控制信息的 控制信令格式 DCI format不同具体包括:
所述第一类型的控制信道传输的下行控制信息的 DCI format为上行调度
UL_grant 的控制信令格式, 所述第二类型的控制信道传输的下行控制信息的 DCI format为下行调度 DL_grant的控制信令格式;
或, 所述第一类型的控制信道传输的下行控制信息的 DCI format为下行 调度 DL_grant的控制信令格式, 所述第二类型的控制信道传输的下行控制信 息的 DCI format为上行调度 UL_grant的控制信令格式。
8、 如权利要求 6所述的方法, 其特征在于,
所述第一类型的控制信道和第二类型的控制信道传输的下行控制信息的 控制信令格式 DCI format不同具体包括:
如果两种 DCI format的大小相等, 所述第一类型的控制信道传输的下行 控制信息的 DCI format包括其中一种 DCI format;所述第二类型的控制信道传 输的下行控制信息的 DCI format包括其中另一种 DCI format。
9、 如权利要求 2所述的方法, 其特征在于,
所述第一类型和第二类型的控制信道的搜索区间类型不同具体包括: 所述第一类型的控制信道为公共搜索区间的控制信道;所述第二类型的控 制信道为用户特定搜索区间的控制信道。
10、 如权利要求 1至 9任一项所述的方法, 其特征在于, 所述在 PDCCH 区域和 E-PDCCH区域内检测控制信道之前还包括:
接收基站发送的配置信息,所述配置信息用于指示所述第一类型和第二类 型的控制信道。
11、 如权利要求 10所述的方法, 其特征在于, 所述配置信息是所述基站 通过用户设备特定 UE - specific信令,或通过小区特定 cell - specific信令发送 给所述用户设备的。
12、 如权利要求 1至 9任一项所述的方法, 其特征在于, 在所述 PDCCH 内检测第一类型的控制信道的次数, 及在 E-PDCCH内检测第二类型的控制信 道的次数之和不大于预置的检测次数。
13、 一种控制信道的发送方法, 其特征在于, 包括:
在物理下行控制信道 PDCCH 区域内以第一类型的控制信道发送调度信 在演进的物理下行控制信道 E-PDCCH区域内以第二类型的控制信道发送 调度信息;
所述第一类型的控制信道和第二类型的控制信道不同。
14、 如权利要求 13所述的方法, 其特征在于, 所述第一类型和第二类型 的控制信道的多个属性中的至少一个属性不同,所述多个属性包括控制信道的 聚合格式, 控制信道传输的信令格式和控制信道的搜索区间类型。
15、 如权利要求 14所述的方法, 其特征在于, 所述第一类型的控制信道 包括至少一种聚合格式; 所述第二类型的控制信道包含至少一种聚合格式; 所述第一类型和第二类型的控制信道的聚合格式不同具体包括:所述第一 类型的控制信道所包括的聚合格式与第二类型的控制信道所包括的聚合格式 完全不同或部分不同。
16、 如权利要求 15所述的方法, 其特征在于, 所述第一类型的控制信道 所包括的聚合格式与第二类型的控制信道所包括的聚合格式完全不同或部分 不同具体为: 所述第一类型和第二类型的控制信道的聚合级别, 和 /或控制信 道单元的格式完全不同或部分不同。
17、 如权利要求 14所述的方法, 其特征在于, 所述第一类型和第二类型 的控制信道传输的信令格式不同具体包括:所述第一类型的控制信道和第二类 型的控制信道传输的下行控制信息的控制信令格式 DCI format不同。
18、 如权利要求 17所述的方法, 其特征在于,
所述第一类型的控制信道和第二类型的控制信道传输的下行控制信息的 控制信令格式 DCI format不同具体包括:
所述第一类型的控制信道传输的下行控制信息的 DCI format为上行调度
UL_grant 的控制信令格式, 所述第二类型的控制信道传输的下行控制信息的 DCI format为下行调度 DL_grant的控制信令格式;
或, 所述第一类型的控制信道传输的下行控制信息的 DCI format为下行 调度 DL_grant的控制信令格式, 所述第二类型的控制信道传输的下行控制信 息的 DCI format为上行调度 UL_grant的控制信令格式。
19、 如权利要求 17所述的方法, 其特征在于,
所述第一类型的控制信道和第二类型的控制信道传输的下行控制信息的 控制信令格式 DCI format不同具体包括:
如果两种 DCI format的大小相等, 则在所述第一类型的控制信道中传输 其中一种 DCI format的下行控制信息; 在所述第二类型的控制信道中传输其 中另一种 DCI format的下行控制信息。
20、 如权利要求 13到 19任一项所述的方法, 其特征在于, 所述方法还包 括:
发送配置信息给用户设备,所述配置信息用于指示所述用户设备在物理下 行控制信道 PDCCH区域内检测第一类型的控制信道,和在演进的物理下行控 制信道 E-PDCCH区域内检测第二类型的控制信道;
且所述配置信息是通过用户设备特定 UE - specific信令,或通过小区特定 cell - specific信令发送给所述用户设备的。
21、 一种用户设备, 其特征在于, 包括:
第一检测单元,用于在物理下行控制信道 PDCCH区域内检测第一类型的 控制信道;
第二检测单元, 用于在演进的物理下行控制信道 E-PDCCH区域内检测第 二类型的控制信道; 所述第一类型的控制信道和第二类型的控制信道不同。
22、 如权利要求 21所述的用户设备, 其特征在于, 所述第一检测单元检 测的第一类型的控制信道,和第二检测单元检测的第二类型的控制信道的多个 属性中至少一个属性不同, 所述多个属性包括: 控制信道的聚合格式, 控制信 道传输的信令格式和控制信道的搜索区间类型。
23、如权利要求 21或 22所述的用户设备,其特征在于,还包括配置单元, 用于接收基站发送的配置信息,所述配置信息用于指示所述第一类型和第二类 型的控制信道。
24、 一种基站, 其特征在于, 包括:
第一发送单元,用于在物理下行控制信道 PDCCH区域内以第一类型的控 制信道发送调度信息;
第二发送单元, 用于在演进的物理下行控制信道 E-PDCCH区域内以第二 类型的控制信道发送调度信息;所述第一类型的控制信道和第二类型的控制信 道不同。
25、 如权利要求 24所述的基站, 其特征在于, 所述第一发送单元发送的 调度信息所在第一类型的控制信道,和第二发送单元发送的调度信息所在的第 二类型的控制信道的多个属性中至少一个属性不同, 所述多个属性包括: 控制 信道的聚合格式, 控制信道传输的信令格式和控制信道的搜索区间类型。
26、 如权利要求 24或 25所述的基站, 其特征在于, 还包括:
配置发送单元, 用于发送配置信息给所述用户设备, 所述配置信息用于指 示所述用户设备在物理下行控制信道 PDCCH区域内检测第一类型控制信道, 和在演进的物理下行控制信道 E-PDCCH区域检测第二类型控制信道。
PCT/CN2012/079316 2011-07-28 2012-07-28 控制信道的接收和发送方法和装置 WO2013013643A1 (zh)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP12818152.6A EP2731390B1 (en) 2011-07-28 2012-07-28 Control channel receiving and sending method and device
CA2843237A CA2843237C (en) 2011-07-28 2012-07-28 Methods and apparatuses for receiving and sending control channel
RU2014107725/07A RU2564098C1 (ru) 2011-07-28 2012-07-28 Способы и устройства приема и передачи канала управления
EP18192141.2A EP3496322B1 (en) 2011-07-28 2012-07-28 Methods and apparatuses for receiving and sending control channel
KR1020147003860A KR101542816B1 (ko) 2011-07-28 2012-07-28 제어 채널을 수신 및 송신하기 위한 방법 및 장치
US14/166,506 US9455812B2 (en) 2011-07-28 2014-01-28 Methods and apparatuses for receiving and sending control channel
US15/245,974 US10148403B2 (en) 2011-07-28 2016-08-24 Methods and apparatuses for receiving and sending control channel
US16/197,611 US10805053B2 (en) 2011-07-28 2018-11-21 Methods and apparatuses for receiving and sending control channel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110213895.3 2011-07-28
CN201110213895.3A CN102905379B (zh) 2011-07-28 2011-07-28 控制信道的接收和发送方法和装置

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US14/166,506 Continuation US9455812B2 (en) 2011-07-28 2014-01-28 Methods and apparatuses for receiving and sending control channel

Publications (1)

Publication Number Publication Date
WO2013013643A1 true WO2013013643A1 (zh) 2013-01-31

Family

ID=47577359

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/079316 WO2013013643A1 (zh) 2011-07-28 2012-07-28 控制信道的接收和发送方法和装置

Country Status (7)

Country Link
US (3) US9455812B2 (zh)
EP (2) EP2731390B1 (zh)
KR (1) KR101542816B1 (zh)
CN (2) CN102905379B (zh)
CA (1) CA2843237C (zh)
RU (1) RU2564098C1 (zh)
WO (1) WO2013013643A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101842557B1 (ko) * 2013-06-28 2018-03-27 후아웨이 테크놀러지 컴퍼니 리미티드 제어 정보 전송 방법과 제어 정보 수신 방법, 그리고 장치

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9520975B2 (en) 2011-05-03 2016-12-13 Telefonaktiebolaget Lm Ericsson (Publ) Methods and devices for transmission of control data to a user equipment
US9491748B2 (en) * 2012-05-22 2016-11-08 Lg Electronics Inc. HARQ ACK/NACK transmission method and wireless device
CN103457709B (zh) * 2012-05-31 2018-05-08 中兴通讯股份有限公司 一种控制信道的发送、接收方法及基站和终端
CN104066183B (zh) * 2013-03-21 2018-02-16 中兴通讯股份有限公司 信道的映射和解调方法及装置
CN104579590B (zh) * 2013-10-12 2018-01-02 普天信息技术有限公司 Tdd‑fdd系统中的应答方法、基站、终端和系统
US10111066B2 (en) * 2015-01-28 2018-10-23 Hfi Innovation Inc. Methods to support measurements for user equipment
JP6638085B2 (ja) 2016-03-16 2020-01-29 テレフオンアクチーボラゲット エルエム エリクソン(パブル) Dl nb−iotに関する送信においてギャップを導入するためのグリッド設計
WO2018084499A1 (ko) * 2016-11-03 2018-05-11 엘지전자 주식회사 무선 통신 시스템에서, 하향링크 제어 영역 구성 방법 및 이를 위한 장치
CN112511284B (zh) * 2016-11-30 2023-04-07 Oppo广东移动通信有限公司 传输信息的方法、终端设备和网络设备
CA3047658C (en) * 2016-12-23 2022-09-06 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Information transmission method, network device and terminal device
CN108631934B (zh) 2017-03-24 2021-04-09 华为技术有限公司 一种数据传输方法、终端设备及基站系统
JP7395352B2 (ja) * 2017-03-24 2023-12-11 ウィルス インスティテュート オブ スタンダーズ アンド テクノロジー インコーポレイティド 無線通信システムの制御チャネルの伝送及び受信方法、装置及びシステム

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010053984A2 (en) * 2008-11-04 2010-05-14 Nortel Networks Limited Providing a downlink control structure in a first carrier to indicate control information in a second, different carrier
WO2011085192A1 (en) * 2010-01-11 2011-07-14 Research In Motion Limited Control channel interference management for heterogeneous network via an extended pdcch

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618365B1 (en) 2002-04-29 2003-09-09 Motorola, Inc. Method and apparatus to reduce uplink compressed mode monitoring in a communication device
DE602007032340C5 (de) 2007-05-07 2022-05-05 Wireless Future Technologies Inc. Steuerkanäle in Kommunikationsnetzwerksystemen
CN103414533B (zh) 2007-09-28 2016-08-10 Lg电子株式会社 在无线通信系统中检测控制信息的方法及设备
KR101448309B1 (ko) * 2007-09-28 2014-10-08 엘지전자 주식회사 무선통신 시스템에서 하향링크 제어채널 모니터링 방법
SE531982C2 (sv) 2008-01-21 2009-09-22 Vilho Eriksson Stabiliserad förpackning för ett flytbart material och förfarande för framställning därav
US8867414B2 (en) 2009-04-27 2014-10-21 Qualcomm Incorporated Method and apparatus for interaction of cell-specific and user-equipment-specific sounding reference signal periodicity and offset
CN101877865B (zh) 2009-04-30 2014-06-11 中兴通讯股份有限公司 发送测量参考信号的方法、系统以及基站和中继站
CN101827444B (zh) * 2010-03-31 2015-03-25 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法
US8537862B2 (en) * 2011-06-30 2013-09-17 Blackberry Limited Transmit downlink control information with higher order modulation
CN102395206B (zh) * 2011-11-08 2015-07-15 电信科学技术研究院 下行控制信息的传输方法和设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010053984A2 (en) * 2008-11-04 2010-05-14 Nortel Networks Limited Providing a downlink control structure in a first carrier to indicate control information in a second, different carrier
WO2011085192A1 (en) * 2010-01-11 2011-07-14 Research In Motion Limited Control channel interference management for heterogeneous network via an extended pdcch

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
NOKIA. ET AL.: "On enhanced downlink control signalling for Rel-11 (Rl-111743)", 3GPP TSG RAN WG1 MEETING #65, 3 May 2011 (2011-05-03), pages 1 - 3, Retrieved from the Internet <URL:http://www.3gpp.org/ftp/tsgran/WGlRL1/TSGR165/Docs/Rl-111743.ZIP> *
NORTEL NETWORKS: "Control channel design for the support of wider bandwidth for LTE-Advanced (Rl-090759)", 3GPP TSG RAN WG1 MEETING #56, 4 February 2009 (2009-02-04), pages 7., Retrieved from the Internet <URL:http//wvw.3gpp.org/ftp/tsgran/WGlRLl/TSGRl56/Docs/Rl-090759.ZIP> *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101842557B1 (ko) * 2013-06-28 2018-03-27 후아웨이 테크놀러지 컴퍼니 리미티드 제어 정보 전송 방법과 제어 정보 수신 방법, 그리고 장치
US10284348B2 (en) 2013-06-28 2019-05-07 Huawei Technologies Co., Ltd. Control information sending method and control information receiving method, and apparatus
US10623165B2 (en) 2013-06-28 2020-04-14 Huawei Technologies Co., Ltd. Control information sending method and control information receiving method, and apparatus
US11265131B2 (en) 2013-06-28 2022-03-01 Huawei Technologies Co., Ltd. Control information sending method and control information receiving method, and apparatus

Also Published As

Publication number Publication date
KR20140042892A (ko) 2014-04-07
US10148403B2 (en) 2018-12-04
CN105391517B (zh) 2018-05-04
RU2564098C1 (ru) 2015-09-27
CN105391517A (zh) 2016-03-09
EP2731390B1 (en) 2018-10-03
CA2843237A1 (en) 2013-01-31
KR101542816B1 (ko) 2015-08-07
US20190089508A1 (en) 2019-03-21
EP3496322A1 (en) 2019-06-12
CA2843237C (en) 2017-09-26
CN102905379A (zh) 2013-01-30
RU2014107725A (ru) 2015-09-10
US20160365960A1 (en) 2016-12-15
US20140140310A1 (en) 2014-05-22
US10805053B2 (en) 2020-10-13
EP3496322B1 (en) 2020-06-17
CN102905379B (zh) 2015-09-09
US9455812B2 (en) 2016-09-27
EP2731390A4 (en) 2014-06-25
EP2731390A1 (en) 2014-05-14

Similar Documents

Publication Publication Date Title
JP7138379B2 (ja) 無線通信システムのharq-ackコードブック生成方法及びこれを用いる装置
US10805053B2 (en) Methods and apparatuses for receiving and sending control channel
US9591621B2 (en) Method and apparatus for transmitting and receiving control channel information on an enhanced physical downlink control channel (ePDCCH) using an enhanced control channel element (eCCE)
CN110999245B (zh) 无线通信网络中的波形指示
WO2012150666A1 (ja) ユーザ端末、無線基地局装置、無線通信システム及び無線通信方法
US9641300B2 (en) Method for transmitting and receiving control channel, base station, and user equipment
EP2660994B1 (en) Method and device for allocating reference resource
WO2013104305A1 (zh) 一种控制信道传输、接收方法及基站、用户设备
WO2013067845A1 (zh) 下行控制信息的传输方法和设备
EP2856685A1 (en) Hybrid automatic repeat request (harq) mapping for carrier aggregation (ca)
WO2013023541A1 (zh) 一种下行控制信息传输方法及装置
WO2013067828A1 (zh) 信息发送及盲检方法和设备
WO2013104253A1 (zh) 一种控制信道资源映射方法、基站及用户设备
WO2013091414A1 (zh) 一种传输信息的方法、系统及设备
WO2013097120A1 (zh) 下行控制信道的搜索空间的映射方法和装置
WO2013139211A1 (zh) ePDCCH资源确定方法及装置
WO2017129035A1 (zh) 一种下行控制信息的传输、检测方法及装置
JP2023090877A (ja) 無線通信システムにおける制御情報、並びにデータ情報送受信方法及びその装置
WO2014183472A1 (zh) 增强物理混合自动重传请求指示信道的传输方法及装置
WO2014019234A1 (zh) 控制信息发送方法、接收方法和装置
EP2750464B1 (en) Enhanced physical downlink control channel (e-pdcch) transmission method and device
WO2014067350A1 (zh) 配置增强物理下行控制信道资源集合的方法和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12818152

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2843237

Country of ref document: CA

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012818152

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 20147003860

Country of ref document: KR

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2014107725

Country of ref document: RU

Kind code of ref document: A