WO2015139429A1 - 控制信息的传输、接收方法、装置及系统 - Google Patents

控制信息的传输、接收方法、装置及系统 Download PDF

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Publication number
WO2015139429A1
WO2015139429A1 PCT/CN2014/085867 CN2014085867W WO2015139429A1 WO 2015139429 A1 WO2015139429 A1 WO 2015139429A1 CN 2014085867 W CN2014085867 W CN 2014085867W WO 2015139429 A1 WO2015139429 A1 WO 2015139429A1
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Prior art keywords
resource
subframe
subframes
cces
control information
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PCT/CN2014/085867
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English (en)
French (fr)
Inventor
石靖
戴博
夏树强
方惠英
刘锟
陈宪明
鲁照华
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US15/127,855 priority Critical patent/US20170094649A1/en
Priority to EP14886162.8A priority patent/EP3122143A4/en
Publication of WO2015139429A1 publication Critical patent/WO2015139429A1/zh

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1854Scheduling and prioritising arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/08Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/12Arrangements for detecting or preventing errors in the information received by using return channel
    • H04L1/16Arrangements for detecting or preventing errors in the information received by using return channel in which the return channel carries supervisory signals, e.g. repetition request signals
    • H04L1/18Automatic repetition systems, e.g. Van Duuren systems
    • H04L1/1829Arrangements specially adapted for the receiver end
    • H04L1/1858Transmission or retransmission of more than one copy of acknowledgement message
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • H04W72/044Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446Resources in time domain, e.g. slots or frames

Definitions

  • the present invention relates to the field of communications, and in particular to a method, device, and system for transmitting and receiving control information.
  • Machine Type Communication (MTC) User Equipment also known as Machine to Machine (M2M) user communication equipment
  • MTC Machine Type Communication
  • UE User Equipment
  • M2M Machine to Machine
  • LTE/LTE-A Long-Term Evolution/Long-Term Evolution Advance
  • MTC multi-class data services based on LTE/LTE-A will also be more attractive.
  • the LTE/LTE-A system in the related art is transmitted based on dynamic scheduling of each subframe, that is, each subframe can transmit different control channels.
  • a physical downlink control channel (Physical Downlink Control Channel, PDCCH for short) and an Enhanced Physical Downlink Control Channel (EPDCCH) are defined in LTE/LTE-A.
  • the structure of the control channel in the subframe is as shown in FIG. 1.
  • the information carried by the Physical Control Format Indicator Channel (PCFICH) is set to indicate the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols for transmitting the PDCCH in one subframe.
  • a Physical Hybrid-Review (ARQ) indicator channel (Physical Hybrid-ARQ Indicator Channel, PHICH for short) is set to carry acknowledgement/negative acknowledgement (ACK/NACK) feedback information for uplink transmission data.
  • the downlink control channel adopts blind detection, and the terminal attempts to demodulate the downlink control channel with different aggregation levels and candidate sets in a certain search space.
  • the UE-specific search space is as shown in Table 1 and Table 2.
  • the search space is composed of candidate sets corresponding to different aggregation levels.
  • the PDCCH/EPDCCH is configured to carry downlink control information (Downlink Control Information, DCI for short), and includes: uplink and downlink scheduling information, and uplink power control information.
  • Downlink Control Information Downlink Control Information
  • uplink and downlink scheduling information includes: uplink and downlink scheduling information, and uplink power control information.
  • the MTC terminal can obtain the DCI by demodulating the PDCCH/EPDCCH channel in each subframe, so as to implement demodulation of the Physical Downlink Share Channel (PDSCH) and Physical Uplink Share Channel (Physical Uplink Share Channel). Scheduling indication information for PUSCH).
  • PDSCH Physical Downlink Share Channel
  • Physical Uplink Share Channel Physical Uplink Share Channel
  • MTC application terminal there is a type of terminal whose coverage performance is significantly degraded due to the limited location or its own characteristics.
  • smart meter reading MTC terminals are mostly installed in a low coverage performance environment such as a basement. They mainly send packet data, have low data rate requirements, and can tolerate large data transmission delays. Since such terminals have low data rate requirements, for the data channel, the correct transmission of the packet data can be ensured by a lower modulation and coding rate and multiple repeated transmissions in the time domain.
  • the maximum number of blind detections increases exponentially with the number of repeated subframes, so it is necessary to limit the blind detection path.
  • a common method of limiting blind detection paths uses the same aggregation level and the same candidate set for each subframe. Since the number of repeated transmissions can be on the order of several tens of times, the use of the same candidate set ensures the reduction of the maximum number of blind detections, but since the specific resource locations corresponding to the same candidate set in each subframe are still random, the coverage enhanced terminal is caused. The probability of collision of control information is greatly increased, causing an increase in the scheduling blocking rate, and thus it is necessary to further limit the resources used for repeated transmission.
  • the present invention provides a method, a device, and a system for transmitting and receiving control information, so as to at least solve the related art, because the specific resource locations corresponding to the same candidate set in each subframe are random, and the control information between the coverage enhanced terminals is caused.
  • the collision probability increases, causing a problem of an increase in the scheduling blocking rate.
  • a method for transmitting control information including: determining, by a base station, a resource for repeatedly transmitting control information according to predefined information, where the predefined information includes at least one of: a starting subframe k 0 , system frame number SFN, repetition number or repetition level N, and user identification UE ID; the base station repeatedly transmits the control information on the resource.
  • the resource is located in multiple subframes, where the resources are in the same location on the multiple subframes or have a specific mapping relationship.
  • the resource used by the new repeated sending operation is re-determined according to the predefined information corresponding to the new repeated sending operation.
  • the resource used by the new repeated transmission operation is different from the location of the resource of the last repeated transmission operation.
  • re-determining the resource used by the new repeated sending operation according to the predefined information corresponding to the new repeated sending operation including: determining, according to the predefined information corresponding to the new repeated sending operation The value of the subframe k used by the new repeated transmission operation; by limiting the value of the starting position of the search space of the subframe k, so that the resource used for the new repeated transmission operation is different from the last repetition The resource used by the send operation.
  • re-determining the resource used by the new repeated sending operation according to the predefined information corresponding to the new repeated sending operation including: determining, according to the predefined information corresponding to the new repeated sending operation The value of the subframe k used by the new repeated transmission operation and the initial value Y -1 ; by limiting the value of the search space start position of the subframe k and the value of the initial value Y -1
  • the resources allocated for the new repeated transmission operation are different from the resources used by the last repeated transmission operation.
  • the location of the resources in the respective subframes is changed, so that the resource locations in the subframes are changed. the same.
  • the process of changing the location of the resource in each of the subframes includes: selecting, in the each subframe, a resource that is configured to transmit the control information from the same N CCE and k CCEs, Where N CCE,k is the minimum value of the number of CCEs in each subframe.
  • the process of changing the location of the resource in the respective subframes includes: after mapping the subframes with a small number of CCEs in the subframes, determining that the subframe is set to transmit the The CCE that controls the information.
  • the mapping of the subframes with the small number of CCEs in the subframes includes: if the subframes with the smaller number of CCEs are allocated, when the resources of the control information are allocated in the subframes, The number of CCEs in the subframe is modulo, so that the resource location allocated by the initial subframe in the repeated transmission control information can be mapped to a position available in the subframe with the smaller number of CCEs.
  • the mapping of the subframes with the small number of CCEs in the subframes includes: performing a subframe with a small number of CCEs, and performing the resource for transmitting the control information in the subframe.
  • Many-to-one resource location mapping includes: performing a subframe with a small number of CCEs, and performing the resource for transmitting the control information in the subframe.
  • the process of changing the location of the resource in each of the subframes includes: allocating resources for transmitting the control information directly from the same CCE sequence to the respective subframes of the repeated transmission control information.
  • the base station determines, according to the predefined information and the public message type, the resource that repeatedly sends the control information.
  • the area where the resource location of the control information when the public message type is the paging message Paging and the random access response message RAR is greater than the area where the public message type is the resource location of the system information SIB.
  • the area where the resource location is located includes at least one of the following: an aggregation level quantity, and a candidate set quantity.
  • a method for receiving control information including: determining, by a terminal, resource locations of repeatedly transmitting control information on a plurality of subframes according to predefined information, wherein the predefined information includes at least the following A: a start subframe k 0 , a system frame number SFN, a repetition number or a repetition level N, and a user identifier UE ID; the terminal repeatedly receives the same control information at the resource location.
  • the resource is located in multiple subframes, and the resource locations on the multiple subframes are the same.
  • the resource location corresponding to the new repeated receiving operation is re-determined according to the predefined information corresponding to the new repeated receiving operation.
  • the resource location corresponding to the new repeated receiving operation is different from the resource location corresponding to the last repeated receiving operation.
  • the re-determining the resource location corresponding to the new repeated receiving operation according to the predefined information corresponding to the new repeated receiving operation comprises: determining, according to the predefined information corresponding to the new repeated operation Determining the value of the subframe k corresponding to the new repeated receiving operation; by limiting the value of the starting position of the search space of the subframe k, the resource location corresponding to the new repeated receiving operation is different from the last repeated receiving The corresponding resource location is operated.
  • the resource location corresponding to the new repeated receiving operation is re-determined according to the predefined information corresponding to the new repeated receiving operation, including: the predefined information corresponding to the new repeated receiving operation. Determining a value of the subframe k corresponding to the new repeated receiving operation and an initial value Y -1 ; by limiting the value of the search space starting position of the subframe k and the value of the initial value Y -1 , The resource location allocated for the new repeated receiving operation is made different from the resource location used by the last repeated receiving operation.
  • the resource locations in the subframes are changed, so that the resource locations in the multiple subframes are the same. .
  • performing the change processing on the resource location in each of the subframes includes: selecting, in the each subframe, a resource set to receive the control information from the same N CCE, k CCEs, where , N CCE,k is the minimum value of the number of CCEs in the respective subframes.
  • the process of changing the resource location in each of the subframes includes: after mapping the subframes with a small number of CCEs in the multiple subframes, determining that the number of subframes with a smaller number of CCEs is set to The CCE that transmits the control information.
  • the CCE data in the subframe is modulo such that the resource location mapping in the starting subframe is capable of being available in a subframe with a smaller number of CCEs.
  • the mapping of the subframes with a small number of CCEs in each of the subframes includes: performing a subframe with a smaller number of CCEs, and determining a resource location of the control information in the subframe.
  • Many-to-one resource location mapping is possible.
  • performing the change processing on the resource location in each subframe includes determining, by using the same CCE sequence number, the resource location for each subframe.
  • a transmission apparatus for controlling information including: a determining module, configured to determine, according to predefined information, a resource for repeatedly transmitting control information, wherein the predefined information includes at least one of the following: a starting subframe k 0 , a system frame number SFN, a repetition number or a repetition level N, and a user identification UE ID; and a sending module configured to repeatedly transmit the control information on the resource.
  • the determining module is further configured to: when the new repeated sending operation needs to be performed, re-determine the resource used by the new repeated sending operation according to the predefined information corresponding to the new repeated sending operation.
  • the determining module includes: a first determining unit, configured to determine, according to the predefined information corresponding to the new repeated sending operation, a value of a subframe k used by the new repeated sending operation;
  • An adjusting unit is configured to limit the value of the starting position of the search space of the subframe k such that the resource allocated for the new repeated transmission operation is different from the resource used for the last repeated transmission.
  • the determining module includes: a second determining unit, configured to determine, according to the predefined information corresponding to the new repeated sending operation, a value and an initial value of a subframe k used by the new repeated sending operation Y -1 ; a second adjustment unit configured to limit the value of the search space start position of the subframe k and the value of the initial value Y -1 such that the resource allocated for the new repeated transmission operation Different from the resources used in the last repeated send operation.
  • the method further includes: a processing module, configured to perform a change process on a position of the resource in each of the subframes when the number of control channel units CCEs of each of the subframes is unequal, such that each of the sub-frames The resource locations in the frame are the same.
  • a processing module configured to perform a change process on a position of the resource in each of the subframes when the number of control channel units CCEs of each of the subframes is unequal, such that each of the sub-frames The resource locations in the frame are the same.
  • the processing module performs a change process on a location of the resource in the multiple subframes by using one of the following manners: selecting, in the each subframe, the same N CCE, k CCEs as a resource for transmitting the control information, where N CCE,k is a minimum value of the number of CCEs in each subframe; and after mapping a subframe with a small number of CCEs in each subframe, determining the subframe
  • the CCE is configured to transmit the control information; for each subframe of the repeated transmission control information, resources for transmitting the control information are directly allocated from the same CCE sequence number.
  • the processing module maps, in one of the following manners, a subframe with a small number of CCEs in each subframe: for a subframe with a small number of CCEs, transmitting the subframe in the allocated subframe
  • the number of CCEs in the subframe is modulo, so that the resource location allocated in the initial subframe is repeatedly transmitted.
  • the information can be mapped to a position available in a subframe with a small number of CCEs; for a subframe with a small number of CCEs, when a resource for transmitting the control information is allocated in the subframe, a multi-to-one resource location mapping is performed.
  • a receiving apparatus for controlling information including: a determining module, configured to determine, according to predefined information, a resource location of repeatedly transmitting control information on a plurality of subframes, wherein the predefined information At least one of the following: a starting subframe k 0 , a system frame number SFN, a repetition number or a repetition level N, and a user identification UE ID; and a receiving module configured to repeatedly receive the same control information at the resource location.
  • the determining module is further configured to: when the new repeated receiving operation needs to be performed, re-determine the resource location corresponding to the new repeated receiving operation according to the predefined information corresponding to the new repeated receiving operation .
  • the determining module includes: a first determining unit, configured to determine, according to the predefined information corresponding to the new repeated operation, a value of a subframe k corresponding to the new repeated receiving operation;
  • the adjusting unit is configured to limit the starting position of the search space of the subframe k such that the resource location corresponding to the new repeated receiving operation is different from the resource location corresponding to the last repeated receiving operation.
  • the determining module includes: a second determining unit, configured to determine, according to the predefined information corresponding to the new repeated receiving operation, a value and an initial value of the subframe k corresponding to the new repeated receiving operation a value Y -1 ; a second adjustment unit configured to limit the search space start position value of the sub-frame k and the value of the initial value Y -1 such that the new repeated receive operation is allocated The resource location is different from the resource location used by the last repeated receive operation.
  • the method further includes: a processing module, configured to change the number of control channel units CCEs in the respective subframes, and perform a change processing on the resource locations in the respective subframes, so that the multiple subframes are The resource locations are the same.
  • a processing module configured to change the number of control channel units CCEs in the respective subframes, and perform a change processing on the resource locations in the respective subframes, so that the multiple subframes are The resource locations are the same.
  • the processing module performs a change process on the resource locations in the respective subframes by selecting , in the respective subframes, a setting from the same N CCE, k CCEs to receive a resource of the control information, where N CCE,k is a minimum value of the number of CCEs in each of the subframes; and after mapping the subframes with a small number of CCEs in the multiple subframes, determining the subframes
  • the CCE is configured to transmit the control information; for each of the subframes, the resource location is determined directly from the same CCE sequence number.
  • the processing module maps, by using one of the following methods, a subframe with a small number of CCEs in each subframe: for a subframe with a small number of CCEs, transmitting the subframe in determining the subframe Controlling the resource location of the information, performing modulo mapping on the CCE data in the subframe, so that the resource location mapping in the starting subframe can A location available in a subframe with a small number of CCEs; for a subframe having a small number of CCEs, when determining a resource location in which the control information is transmitted in the subframe, a multi-to-one resource location mapping is performed.
  • a transmission system for control information comprising: a base station and a terminal, wherein the base station includes the above-mentioned transmission information of control information, and the terminal includes the above-mentioned receiving device for control information .
  • the resource location of the repeated transmission control information is determined according to the predefined information, which can reduce the blocking rate of the control information of the coverage enhanced MTC terminal during repeated transmission, thereby ensuring normal transmission and reception of data information, and reducing system overhead and delay.
  • FIG. 1 is a flowchart of a method of transmitting control information according to an embodiment of the present invention
  • FIG. 2 is a schematic diagram of different repetition times/repetition levels of control information in a coverage enhancement scenario according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for receiving control information according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a transmission apparatus for controlling information according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a device for receiving control information according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of the occupation of repeated transmission resources of control information in an overlay enhanced scenario according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of repeated transmission resource occupation when the number of CCEs in each subframe is unequal in the coverage enhancement scenario in the embodiment of the present invention.
  • a method of transmitting control information is provided.
  • FIG. 1 is a flowchart of a method for transmitting control information according to an embodiment of the present invention. As shown in FIG. 1, the method mainly includes the following steps:
  • Step S102 The base station determines, according to the predefined information, a resource that repeatedly sends control information, where the predefined information includes at least one of: a starting subframe (k 0 ), a system frame number (SFN), a repetition number, or a repetition level. (N), and user identification (UE ID);
  • the predefined information includes at least one of: a starting subframe (k 0 ), a system frame number (SFN), a repetition number, or a repetition level. (N), and user identification (UE ID);
  • Step S104 The base station repeatedly sends the control information on the resource.
  • the resource location is determined to be in multiple subframes, and the locations of the resources allocated on the multiple subframes are the same or have a specific mapping relationship.
  • the resource used by the new repeated sending operation is re-determined according to the predefined information corresponding to the new repeated sending operation.
  • the resource used by the new repeated transmission operation is different from the location of the resource of the last repeated transmission operation. That is, the resource locations of the two consecutive transmission operations are different, and the resource locations of the two consecutive transmission operations may be the same or different, which is not limited in the embodiment of the present invention.
  • the value of the subframe k may be restricted according to at least one of a starting subframe, a system frame number, and a repetition number, and the resources allocated between the different repeated sending operations are restricted by limiting the value of the subframe k. different.
  • or C is a constant, preferably 10.
  • each subframe k that is repeatedly transmitted is k 0 , k 0 +1, ..., k 0 + N-1, and SFN takes the radio frame number of the subframe in which k 0 is located, h is The number of downlink subframes available in the radio frame.
  • the advantage of the modulo C is to prevent the SFN from being too large (1023), causing k to be too large to make the number of Y k iterations too much.
  • the resources allocated between the different repeated transmission operations are different, according to the starting subframe, the system frame number, the user identifier, and the repetition. At least one of the number of times limits the values of subframes k and Y -1 .
  • L represents the aggregation level
  • m represents the number of candidate sets
  • N CCE,k represents the number of CCEs of subframe k.
  • the resource location is changed to ensure that the resource locations are the same.
  • resources set as repeated transmission control information are selected from the same N CCE, k CCEs in each subframe, where N CCE,k is the minimum value of the number of CCEs in each subframe at the time of repeated transmission.
  • N CCE,k min ⁇ N CCE,k ⁇
  • the resources allocated to each subframe when the transmission is repeated do not exceed the value range of the minimum number of CCEs.
  • a mapping method is to perform modulo calculation on a subframe with a small number of CCEs such that a resource location allocated by the start subframe is mapped to a location available in the subframe.
  • the excess portion is modulo-operated according to the total number of CCEs of its subframes to ensure that resources can be allocated.
  • mapping method that is, a multi-to-one resource location mapping is performed on a subframe with a small number of CCEs during calculation.
  • M is preferably a positive integer greater than one.
  • the mapping rule ensures that the resources can be allocated.
  • the mapping rule is that multiple CCE locations of the starting subframe are mapped to subframes with a smaller number of CCEs. In a CCE location.
  • the resource locations may be scheduled directly from the CCE index C (ie, from the same CCE number) for repeated transmissions.
  • C ie, from the same CCE number
  • a preferred C value is 0, 16.
  • the base station determines, according to the predefined information and the public message type, the resource for repeatedly transmitting the control information.
  • the area where the resource location of the control information when the public message type is the paging message Paging and the random access response message RAR is greater than the area where the public message type is the resource location of the system information SIB.
  • the area where the resource location is located includes at least one of the following: an aggregation level quantity, and a candidate set quantity.
  • a method for receiving control information is also provided.
  • FIG. 3 is a flowchart of a method for receiving control information according to an embodiment of the present invention. As shown in FIG. 3, the method mainly includes the following steps:
  • Step S302 The terminal determines, according to the predefined information, a resource location that repeatedly receives the same control information in the multiple subframes, where the predefined information includes at least one of the following: a starting subframe (k 0 ), a system frame number (SFN) , repetition number / repetition level (N), user identification (UE ID);
  • the predefined information includes at least one of the following: a starting subframe (k 0 ), a system frame number (SFN) , repetition number / repetition level (N), user identification (UE ID);
  • Step S304 the terminal repeatedly receives the same control information at the resource location.
  • the resource location is included in multiple subframes, and the resource locations on the multiple subframes are the same.
  • the resource location corresponding to the new repeated receiving operation is re-determined according to the predefined information corresponding to the new repeated receiving operation.
  • the resource locations corresponding to two consecutive repeated receiving operations are different. For example, the last repeated reception of a certain control information uses four consecutive CCEs starting from CCE number 0, and the current repeated reception of another control information no longer uses four consecutive CCEs starting from CCE number 0.
  • the value of the subframe k may be restricted according to at least one of the starting subframe, the system frame number, and the repetition number, and the resource location between the different repeated receiving operations is different by limiting the value of the subframe k. . E.g:
  • or C is a constant of preferably 10.
  • each subframe k that is repeatedly transmitted is k 0 , k 0 +1, ..., k 0 + N-1, and SFN takes the radio frame number of the subframe in which k 0 is located, h is The number of downlink subframes available in the radio frame.
  • the values of the subframes k and Y -1 may also be determined according to at least one of a starting subframe, a system frame number, a user identifier, and a repetition number.
  • the resource locations between the different repeated receiving operations are different by limiting the value of the subframe k and the value of the initial value Y -1 .
  • L represents the aggregation level
  • m represents the number of candidate sets
  • N CCE,k represents the number of CCEs of subframe k.
  • the resource location is changed to ensure that the resource locations are the same.
  • the resources set to receive the control information are selected from the same N CCE and k CCEs in the respective subframes, where N CCE,k are each The minimum number of CCEs in a subframe. which is:
  • N CCE,k min ⁇ N CCE,k ⁇
  • k k 0 , k 0 +1, ..., k 0 + N-1.
  • the subframes having a smaller number of CCEs in each subframe in the case of repeated transmission are also mapped when determining the resource location.
  • a mapping method is to perform modulo calculation on a subframe with a smaller number of CCEs so that the resource location allocated by the starting subframe is mapped to a location available in the subframe.
  • mapping method performing multi-to-one resource location mapping when calculating a subframe with a small number of CCEs.
  • M is preferably a positive integer greater than one.
  • the resource location is determined directly from the CCE index C for each subframe in the case of repeated transmission. That is, for each of the subframes, the resource location is determined directly from the same CCE sequence number.
  • a preferred C value is 0, 16.
  • FIG. 6 is a schematic diagram of the control information repetitive transmission resource occupation in the coverage enhancement scenario according to the technical solution provided by the embodiment of the present invention
  • FIG. 7 is a technical solution provided by the embodiment of the present invention, and the control information is in each subframe in the coverage enhancement scenario.
  • the embodiment of the present invention further provides a transmission device for controlling information, where the device may be located at a base station, and configured to implement the foregoing method for transmitting control information.
  • FIG. 4 is a schematic structural diagram of a device for transmitting control information according to an embodiment of the present invention.
  • the device includes: a determining module 42 configured to determine, according to predefined information, a resource for repeatedly transmitting control information, where The predefined information includes at least one of the following: a starting subframe, a system frame number SFN, a repetition number or a repetition level N, and a user identification UE ID; and a sending module 44 configured to repeatedly send the control information on the resource.
  • the determining module 42 is further configured to: when the new repeated sending operation needs to be performed, re-determine the resource used by the new repeated sending operation according to the predefined information corresponding to the new repeated sending operation.
  • the determining module 42 may include: a first determining unit, configured to determine, according to the predefined information corresponding to the new repeated sending operation, a value of a subframe k used by the new repeated sending operation. a first adjustment unit configured to limit the value of the start position of the search space of the subframe k such that the resource allocated for the new repeated transmission operation is different from the resource used for the last repeated transmission.
  • the determining module 42 may include: a second determining unit, configured to determine, according to the predefined information corresponding to the new repeated sending operation, a value of a subframe k used by the new repeated sending operation And an initial value Y -1 ; a second adjustment unit configured to limit the search space start position of the sub-frame k and the value of the initial value Y -1 such that the new repeat transmission operation The allocated resources are different from the resources used in the last repeated send operation.
  • the apparatus may further include: a processing module, configured to: when the number of control channel units CCE of each of the subframes is unequal, change a position of the resource in each subframe, so that The resource locations in the respective subframes are the same.
  • a processing module configured to: when the number of control channel units CCE of each of the subframes is unequal, change a position of the resource in each subframe, so that The resource locations in the respective subframes are the same.
  • the processing module performs a change process on a location of the resource in the multiple subframes by using one of the following manners:
  • resources for transmitting the control information are directly allocated from the same CCE sequence number.
  • the processing module maps the subframes with a small number of CCEs in each subframe in one of the following manners:
  • the number of CCEs in the subframe is modulo, so that the repeated transmission control information is allocated in the initial subframe.
  • the resource location can be mapped to a location available in a subframe with a smaller number of CCEs;
  • a receiving device for controlling information is provided, and the device may be located at a terminal, and configured to implement the foregoing method for receiving control information.
  • FIG. 5 is a schematic structural diagram of a device for receiving control information according to an embodiment of the present invention.
  • the device mainly includes: a determining module 52, configured to determine, according to predefined information, resources for repeatedly transmitting control information on multiple subframes. a location, where the predefined information includes at least one of: a start subframe, a system frame number SFN, a repetition number or a repetition level N, and a user identification UE ID; and a receiving module 54 configured to repeat at the resource location Receive control information with the same content.
  • the determining module 52 is further configured to: when the new repeated receiving operation needs to be performed, re-determine the resource corresponding to the new repeated receiving operation according to the predefined information corresponding to the new control receiving operation. position.
  • the determining module 52 may include: a first determining unit, configured to determine, according to the predefined information corresponding to the new repeated operation, a value of the subframe k corresponding to the new repeated receiving operation; The first adjusting unit is configured to limit the starting position of the search space of the subframe k such that the resource location corresponding to the new repeated receiving operation is different from the resource location of the last repeated receiving operation.
  • the determining module 52 may include: a second determining unit, configured to determine, according to the predefined information corresponding to the new repeated receiving operation, a value of the subframe k corresponding to the new repeated receiving operation And an initial value Y -1 ; a second adjustment unit configured to limit the search space start position of the sub-frame k and the value of the initial value Y -1 such that the new repeated receive operation The allocated resource location is different from the resource location used by the last repeated receive operation.
  • the apparatus may further include: a processing module, configured to change the number of control channel units CCEs in the respective subframes, and perform a change processing on the resource locations in the respective subframes, so that the multiple The resource locations in the sub-frames are the same.
  • a processing module configured to change the number of control channel units CCEs in the respective subframes, and perform a change processing on the resource locations in the respective subframes, so that the multiple The resource locations in the sub-frames are the same.
  • the processing module performs a change process on the resource location in each of the subframes by using one of the following manners:
  • the resource location is determined directly from the same CCE sequence number.
  • the processing module may map, in one of the following manners, a subframe with a small number of CCEs in each subframe:
  • the CCE data in the subframe is moduloized, so that the resource location in the initial subframe is obtained. Mapping the locations available in the subframes where the number of CCEs is small;
  • a multi-to-one resource location mapping is performed.
  • a transmission system for control information comprising: a base station and a terminal, wherein the base station may include the above-mentioned transmission information of control information, and the terminal may include the above control information.
  • Receiving device may include the above-mentioned transmission information of control information, and the terminal may include the above control information.
  • the base station repeatedly transmits the same control information for the terminal to allocate resources on the plurality of subframes according to the starting subframe, the system frame number, and the number of repetitions, and the resource locations used in the multiple subframes are the same.
  • the control information is occupied by CCE resources.
  • the system bandwidth is 10 MHz at this time, and the number of CCEs of the starting subframe k 0 is removed, except for the control area resources occupied by other channels and pilots. Is 44.
  • its RNTI value is 200.
  • the base station repeatedly transmits the same control information on the resource.
  • the repeatedly transmitted control information can be allocated to the same resource, and the blocking rate is reduced.
  • the radio frame n and the radio frame n+1 are the same in N CCE, k and m, the value of k is twice. The repetition is different, so that the same CCE position used by each of them produces a randomization effect at different repeated transmissions.
  • control information transmission is described in detail by using the method provided by the present invention.
  • the base station repeatedly transmits the same control information for the terminal to allocate resources on the plurality of subframes according to the starting subframe, the system frame number, and the number of repetitions, and the resource locations used in the multiple subframes are the same.
  • the control information is occupied by CCE resources.
  • the system bandwidth is 10 MHz at this time, and the number of CCEs of the starting subframe k 0 is removed, except for the control area resources occupied by other channels and pilots. Is 44. At this time, its RNTI value is 300.
  • the base station repeatedly transmits the same control information on the resource.
  • the repeatedly transmitted control information can be allocated to the same resource, and the blocking rate is reduced.
  • the radio frame n and the radio frame n+1 are the same in N CCE, k and m
  • the value of k is twice. The repetition is different, so that the same CCE position used by each of them generates a randomization effect when different repeated transmissions are performed, and at the same time, the operation iteration is prevented from being excessive due to the excessive SFN value, and the processing complexity is reduced.
  • the base station repeatedly transmits the same control information for the terminal to allocate resources on the plurality of subframes according to the starting subframe, the system frame number, and the number of repetitions, and the resource locations used in the multiple subframes are the same.
  • the control information is occupied by CCE resources.
  • the system bandwidth is 10 MHz at this time, and the number of CCEs of the starting subframe k 0 is removed, except for the control area resources occupied by other channels and pilots. 44, the number of CCEs in subsequent subframes 1-7 is the same as subframe 0, and the number of subframes 8 and 9 CCEs. Is 35. At this time, its RNTI value is 101.
  • the CCE occupies 8 consecutive CCE resources starting from number 16.
  • the base station repeatedly transmits the same control information on the resource.
  • the repeatedly transmitted control information can be allocated to the same resource in each subframe in which the number of CCEs is not equal, and the blocking rate is reduced, and the radio frame n and the radio frame n+1 are in N CCE, k, and m phases.
  • the same CCE position used by each uses a randomization effect at different repeated transmissions.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the method, device, and system for transmitting and receiving control information provided by the embodiments of the present invention have the following beneficial effects: the blocking rate of the control information of the coverage enhanced MTC terminal during repeated transmission can be reduced, thereby ensuring data information. Normal transmission and reception, reducing system overhead and latency.

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Abstract

本发明公开了一种控制信息的传输、接收方法、装置及系统。其中,控制信息的传输方法包括:基站根据预定义信息确定重复发送控制信息的资源,其中,预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;基站在上述资源上重复发送控制信息。

Description

控制信息的传输、接收方法、装置及系统 技术领域
本发明涉及通信领域,具体而言,涉及一种控制信息的传输、接收方法、装置及系统。
背景技术
机器类型通信(Machine Type Communication,简称为MTC)用户终端(User Equipment,简称UE),又称为机器到机器(Machine to Machine,简称M2M)用户通信设备,是目前物联网的主要应用形式。近年来,由于长期演进(Long-Term Evolution,简称为LTE)/高级长期演进系统(Long-Term Evolution Advance,简称为LTE-Advance或LTE-A)的频谱效率高,越来越多的移动运营商选择LTE/LTE-A作为宽带无线通信系统的演进方向。基于LTE/LTE-A的MTC多种类数据业务也将更具吸引力。
相关技术中的LTE/LTE-A系统是基于每个子帧动态调度进行传输的,即每个子帧均可以传输不同的控制信道。
LTE/LTE-A中定义了物理下行控制信道(Physical Downlink Control Channel,简称为PDCCH)和增强物理下行控制信道(Enhanced Physical Downlink Control Channel,简称为EPDCCH)。控制信道在子帧中的结构如图1所示。物理控制格式指示信道(Physical Control Format Indicator Channel,简称为PCFICH)承载的信息设置为指示在一个子帧里传输PDCCH的正交频分复用(Orthogonal Frequency Division Multiplexing,简称为OFDM)符号的数目。物理混合自动重传请求(Automatic Repeat-reQuest,简称为ARQ)指示信道(Physical Hybrid-ARQ Indicator Channel,简称为PHICH)设置为承载上行传输数据的肯定应答/否定应答(ACK/NACK)反馈信息。下行控制信道采用盲检测,终端在一定的搜索空间中尝试以不同的聚合等级和候选集解调下行控制信道。目前UE专有搜索空间如表1和表2所示,搜索空间由不同聚合等级所对应的候选集组成,终端解调控制信道时需要尝试解调各个候选集直至解调正确,否则认为没有接收到属于自己的控制信道。
表1PDCCH搜索空间
Figure PCTCN2014085867-appb-000001
Figure PCTCN2014085867-appb-000002
表2EPDCCH搜索空间(One Distributed EPDCCH-PRB-set–Case3)
Figure PCTCN2014085867-appb-000003
PDCCH/EPDCCH设置为承载下行控制信息(Downlink Control Information,简称为DCI),包括:上、下行调度信息,以及上行功率控制信息。
通常MTC终端可以通过在每个子帧解调PDCCH/EPDCCH信道获得DCI,以便实现对物理下行共享信道(Physical Downlink Share Channel,简称为PDSCH)的解调和物理上行共享信道(Physical Uplink Share Channel,简称为PUSCH)的调度指示信息。
在MTC应用终端中,有一类终端由于所处位置或自身特性受限从而导致覆盖性能显著下降。例如智能抄表类MTC终端大多固定安装在地下室等低覆盖性能环境下,其主要发送小包数据,对数据速率的要求低,能够容忍较大的数据传输时延。由于此类终端对数据速率要求低,对于数据信道而言,可以通过更低的调制编码速率以及时域上的多次重复发送等方式来保证小包数据的正确传输。在接收重复传输的控制信息时,最大盲检次数会随着重复子帧数量呈指数性增加,因此有必要对盲检路径进行限制。常见的限制盲检路径方法为各子帧使用相同的聚合等级以及相同的候选集。由于重复传输次数可达几十次的量级,使用相同候选集虽然保证了最大盲检测次数的降低,但由于各个子帧上相同候选集对应的具体资源位置仍然是随机的,导致覆盖增强终端之间控制信息碰撞概率大为增加,引起调度阻塞率的上升,因而有必要进一步对重复传输使用的资源进行限制。
针对相关技术中存在的上述问题,目前尚未提出有效地解决方案。
发明内容
本发明提供了一种控制信息的传输、接收方法、装置及系统,以至少解决相关技术中,由于各个子帧上相同候选集对应的具体资源位置是随机的,导致覆盖增强终端之间控制信息碰撞概率增加,引起调度阻塞率的上升的问题。
根据本发明的一个实施例,提供了一种控制信息的传输方法,包括:基站根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;基站在所述资源上重复发送所述控制信息。
可选地,所述资源位于多个子帧,其中,所述资源在所述多个子帧上的位置相同或者具有特定的映射关系。
可选地,在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
可选地,所述新的重复发送操作使用的资源与上一次重复发送操作的资源的位置不同。
可选地,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源,包括:根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值;通过限制所述子帧k的搜索空间的起始位置取值,使得为所述新的重复发送操作使用的资源不同于上一次重复发送操作使用的资源。
可选地,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源,包括:根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值和初始值Y-1;通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送操作使用的资源。
可选地,如果各个所述子帧中的控制信道单元CCE数量不等,则对所述资源在所述各个子帧中的位置进行变更处理,使得所述各个子帧中的所述资源位置相同。
可选地,对所述资源在所述各个子帧中的位置进行变更处理包括:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为传输所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值。
可选地,对所述资源在所述各个子帧中的位置进行变更处理包括:对所述各个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE。
可选地,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,对该子帧中的CCE数量进行取模,使得重复发送控制信息在起始子帧分配的资源位置能够映射至该CCE数量较小的子帧中可用的位置。
可选地,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,进行多对一资源位置映射。
可选地,对所述资源在所述各个子帧中的位置进行变更处理包括:对重复传输控制信息的所述各个子帧,直接从同一个CCE序号开始分配传输所述控制信息的资源。
可选地,所述控制信息为调度公有消息的控制信息时,则基站根据预定义信息和公有消息类型确定重复发送控制信息的资源。
可选地,调度所述公有消息类型为寻呼消息Paging和随即接入响应消息RAR时的控制信息的资源位置所在区域大于所述公有消息类型为系统信息SIB的资源位置的所在区域。
可选地,所述资源位置的所在区域包括以下至少之一:聚合等级数量、候选集数量。
根据本发明的另一个实施例,提供了一种控制信息的接收方法,包括:终端根据预定义信息确定多个子帧上重复传输控制信息的资源位置,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;所述终端在所述资源位置重复接收内容相同的控制信息。
可选地,所述资源位于多个子帧,且所述多个子帧上的所述资源位置相同。
可选地,在需要执行新的重复接收操作时,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
可选地,所述新的重复接收操作对应的资源位置与上一次重复接收操作对应的资源位置不相同。
可选地,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置包括:根据所述新的重复操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值;通过限制所述子帧k的搜索空间的起始位置取值,使得所述新的重复接收操作对应的资源位置不同于上一次重复接收操作对应的资源位置。
可选地,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置,包括:根据所述新的重复接收操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值和初始值Y-1;通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复接收操作分配的资源位置不同于上一次的重复接收操作使用的资源位置。
可选地,如果所述各个子帧中的控制信道单元CCE数量不等,则对所述各个子帧中的所述资源位置进行变更处理,使得所述多个子帧中的所述资源位置相同。
可选地,对所述各个子帧中的所述资源位置进行变更处理包括:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值。
可选地,所述各个子帧中的所述资源位置进行变更处理包括:对所述多个子帧中CCE数量较少的子帧进行映射后,确定该CCE数量较少的子帧中设置为传输所述控制信息的CCE。
可选地,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,对该子帧中的CCE数据进行取模,使得起始子帧中的所述资源位置映射能够该CCE数量较小的子帧中可用的位置。
可选地,对所述各个子帧中CCE数量较少的子帧进行映射包括:对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,进行多对一资源位置映射。
可选地,所述各个子帧中的所述资源位置进行变更处理包括:对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。
根据本发明的再一个实施例,提供了一种控制信息的传输装置,包括:确定模块,设置为根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;发送模块,设置为在所述资源上重复发送所述控制信息。
可选地,所述确定模块还设置为在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
可选地,所述确定模块包括:第一确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值;第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送使用的资源。
可选地,所述确定模块包括:第二确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新重复发送操作使用的子帧k的取值和初始值Y-1;第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送操作使用的资源。
可选地,还包括:处理模块,设置为在各个所述子帧的控制信道单元CCE数量不等时,对所述资源在所述各个子帧中的位置进行变更处理,使得所述各个子帧中的所述资源位置相同。
可选地,所述处理模块通过以下方式之一对所述资源在所述多个子帧中的位置进行变更处理:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为传输所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;对所述各个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;对所述重复传输控制信息的各个子帧,直接从同一个CCE序号开始分配传输所述控制信息的资源。
可选地,所述处理模块通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,对该子帧中的CCE数量进行取模,使得重复发送控制信息在起始子帧分配的资源位置 能够映射至该CCE数量较小的子帧中可用的位置;对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,进行多对一资源位置映射。
根据本发明的又一个实施例,提供了一种控制信息的接收装置,包括:确定模块,设置为根据预定义信息确定多个子帧上重复传输控制信息的资源位置,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;接收模块,设置为在所述资源位置重复接收内容相同的控制信息。
可选地,所述确定模块还设置为:在需要执行新的重复接收操作时,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
可选地,所述确定模块包括:第一确定单元,设置为根据所述新的重复操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值;第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得所述新的重复接收操作对应的资源位置不同于上一次重复接收操作对应的资源位置。
可选地,所述确定模块包括:第二确定单元,设置为根据所述新的重复接收操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值和初始值Y-1;第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复接收操作分配的资源位置不同于上一次的重复接收操作使用的资源位置。
可选地,还包括:处理模块,设置为所述各个子帧中的控制信道单元CCE数量不等,对所述各个子帧中的所述资源位置进行变更处理,使得所述多个子帧中的所述资源位置相同。
可选地,所述处理模块通过以下方式之一对所述各个子帧中的所述资源位置进行变更处理:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;对所述多个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。
可选地,所述处理模块通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,对该子帧中的CCE数据进行取模,使得起始子帧中的所述资源位置映射能够该 CCE数量较小的子帧中可用的位置;对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,进行多对一资源位置映射。
根据本发明的又一个实施例,提供了一种控制信息的传输系统,包括:基站和终端,其中,所述基站包括上述的控制信息的传输装置,所述终端包括上述的控制信息的接收装置。
通过本发明,根据预定义信息确定重复传输控制信息的资源位置,可以降低覆盖增强MTC终端在重复传输时控制信息的阻塞率,进而保证数据信息的正常发送和接收,减少系统开销以及时延。
附图说明
此处所说明的附图用来提供对本发明的进一步理解,构成本申请的一部分,本发明的示意性实施例及其说明用于解释本发明,并不构成对本发明的不当限定。在附图中:
图1是根据本发明实施例的控制信息的传输方法的流程图;
图2是根据本发明实施例的在覆盖增强场景下控制信息不同重复次数/重复等级示意图;
图3为根据本发明实施例的控制信息的接收方法的流程图;
图4为根据本发明实施例的控制信息的传输装置的结构示意图;
图5为根据本发明实施例的控制信息的接收装置的结构示意图;
图6为本发明实施例中在覆盖增强场景下控制信息重复传输资源占用示意图;
图7为本发明实施例中在覆盖增强场景下控制信息在各子帧CCE数量不等时重复传输资源占用示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明。需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。
根据本发明实施例,提供了一种控制信息的传输方法。
图1为根据本发明实施例的控制信息的传输方法的流程图,如图1所示,主要包括以下步骤:
步骤S102,基站根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧(k0)、系统帧号(SFN)、重复次数或重复等级(N)、及用户标识(UE ID);
步骤S104,基站在所述资源上重复发送所述控制信息。
可选的,在步骤S102中确定资源位置于多个子帧,在所述多个子帧上分配的所述资源的位置相同或具有特定的映射关系。
可选地,在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
可选地,所述新的重复发送操作使用的资源与上一次重复发送操作的资源的位置不同。即相邻两次重复发送操作的资源位置不同,而对于不相邻两次重复发送操作,其资源位置可以相同,也可以不同,具体本发明实施例不做限定。
可选地,可以根据起始子帧、系统帧号和重复次数中至少之一限制子帧k的取值,通过限制子帧k的取值使得所述不同的重复发送操作之间分配的资源不同。例如,
Figure PCTCN2014085867-appb-000004
Figure PCTCN2014085867-appb-000005
或者
Figure PCTCN2014085867-appb-000006
C为常数,优选10。
其中,L表示聚合等级,此时重复传输的各子帧k为k0,k0+1,...,k0+N-1,SFN取k0所在子帧的无线帧号,h为无线帧中可用的下行子帧数量。
以图2所示的RL1为例,无线帧n与无线帧n+1在NCCE,k和m相同时,由于k的取值在两次重复时不同,使得各自使用的相同CCE位置在不同的重复传输时就产生随机化效果了。
其中,模C的好处是防止SFN过大(1023)导致k过大使得Yk迭代次数过多。
更进一步,也可以通过限制子帧k的取值和初始值Y-1的取值使得所述不同重复发送操作之间分配的资源不同,根据起始子帧、系统帧号、用户标识和重复次数中至少之一限制子帧k和Y-1的取值。例如:
Figure PCTCN2014085867-appb-000007
Figure PCTCN2014085867-appb-000008
Figure PCTCN2014085867-appb-000009
Y-1=nRNTI+C或Y-1=nRNTI+216×C或Y-1=nRNTI×C或Y-1=2E×nRNTI+C,A=39827,D=65537
C优选
Figure PCTCN2014085867-appb-000010
Figure PCTCN2014085867-appb-000011
Figure PCTCN2014085867-appb-000012
Figure PCTCN2014085867-appb-000013
Figure PCTCN2014085867-appb-000014
或0<C≤2E
其中,L表示聚合等级,m表示候选集数量,NCCE,k表示子帧k的CCE数量。i=0,…,L-1,nRNTI表示无线网络临时标识的取值。
此时,通过限制子帧k和Y-1的取值,对于同一用户使用相同的RNTI时,使得分配不同重复传输的起始子帧的资源位置时产生了随机化效果。
可选地,重复传输时各个子帧的CCE数量不等时,为保证所述资源位置相同对所述资源位置进行变更处理。
例如,在各个子帧中从相同的NCCE,k个CCE中选择设置为重复传输控制信息的资源,其中,NCCE,k为在重复传输时各个子帧中的CCE数量的最小值。即,
NCCE,k=min{NCCE,k}
k=k0,k0+1,...,k0+N-1
此时,重复传输时各个子帧所分配的资源均不会超出最小CCE数量的取值范围。
或者,也可以对重复传输时各个子帧中CCE数量较小的子帧在分配所述资源位置时进行映射。保证重复传输的各个子帧中在CCE数量小于起始子帧的CCE数量时通过映射规则能够分配到资源。
可选地,一种映射方法为对CCE数量较小的子帧在计算时取模使得起始子帧分配的资源位置映射至该子帧中可用的位置。例如:
Figure PCTCN2014085867-appb-000015
此时,如果CCE数量较小的子帧分配的资源位置恰好超出去总数时,超出部分按照其子帧CCE总数取模运算保证能够分配到资源。
或者,也可以采取另外一种映射方法,即对CCE数量较小的子帧在计算时进行多对一资源位置映射。例如:
Figure PCTCN2014085867-appb-000016
M优选大于1的正整数。
此时,如果CCE数量较小的子帧分配的资源位置恰好超出其总数时,通过映射规则保证能够分配到资源,该映射规则为起始子帧多个CCE位置映射至CCE数量较少子帧中一个CCE位置。
或者,也可以对重复传输时各个子帧直接从CCE index C(即从同一个CCE编号)开始安排所述资源位置。优选的C取值为0、16。此时,相当于重复的各子帧分配资源时都从CCE编号较小的位置开始占用。
可选地,在本发明实施例中,所述控制信息为调度公有消息的控制信息时,则基站根据预定义信息和公有消息类型确定重复发送控制信息的资源。
可选地,调度所述公有消息类型为寻呼消息Paging和随即接入响应消息RAR时的控制信息的资源位置所在区域大于所述公有消息类型为系统信息SIB的资源位置的所在区域。
可选地,所述资源位置的所在区域包括以下至少之一:聚合等级数量、候选集数量。
与上述控制信息的传输方法对应,根据本发明实施例,还提供了一种控制信息的接收方法。
图3为根据本发明实施例的控制信息的接收方法的流程图,如图3所示,该方法主要包括以下步骤:
步骤S302,终端根据预定义信息在多个子帧上确定重复接收内容相同控制信息的资源位置,其中,预定义信息至少包括以下之一:起始子帧(k0)、系统帧号(SFN)、重复次数/重复等级(N)、用户标识(UE ID);
步骤S304,所述终端在资源位置重复接收内容相同的控制信息。
可选地,所述资源位置包含在多个子帧中,且在所述多个子帧上的所述资源位置相同。
可选地,在需要执行新的重复接收操作时,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
可选地,相邻两次重复接收操作对应的所述资源位置不同。例如,上一次重复接收某个控制信息使用从CCE编号0开始的连续4个CCE,当前重复接收另一个控制信息则不再使用从CCE编号0开始的连续4个CCE。
可选地,可以根据起始子帧、系统帧号和重复次数中至少之一限制子帧k的取值,通过限制子帧k的取值使得所述不同重复接收操作之间的资源位置不同。例如:
Figure PCTCN2014085867-appb-000017
Figure PCTCN2014085867-appb-000018
或者
Figure PCTCN2014085867-appb-000019
C为常数优选10。
其中,L表示聚合等级,此时重复传输的各子帧k为k0,k0+1,...,k0+N-1,SFN取k0所在子帧的无线帧号,h为无线帧中可用的下行子帧数量。
可选地,也可以根据起始子帧、系统帧号、用户标识和重复次数中至少之一确定子帧k和Y-1的取值。通过限制子帧k的取值和初始值Y-1的取值使得所述不同重复接收操作之间的资源位置不同。例如:
Figure PCTCN2014085867-appb-000020
Figure PCTCN2014085867-appb-000021
Figure PCTCN2014085867-appb-000022
Y-1=nRNTI+C或Y-1=nRNTI+216×C或Y-1=nRNTI×C或Y-1=2E×nRNTI+C,A=39827,D=65537
C优选
Figure PCTCN2014085867-appb-000023
Figure PCTCN2014085867-appb-000024
Figure PCTCN2014085867-appb-000025
Figure PCTCN2014085867-appb-000026
Figure PCTCN2014085867-appb-000027
或0<C≤2E
其中,L表示聚合等级,m表示候选集数量,NCCE,k表示子帧k的CCE数量。i=0,…,L-1,nRNTI表示无线网络临时标识的取值。
可选地,如果重复传输时各个子帧的CCE数量不等时,为保证所述资源位置相同对所述资源位置进行变更处理。
可选地,对资源位置进行变更处理时,在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值。即:
NCCE,k=min{NCCE,k}
k=k0,k0+1,...,k0+N-1。
或者,也对重复传输时各个子帧中CCE数量较小的子帧在确定所述资源位置时进行映射。
例如,一种映射方法为对CCE数量较小的子帧计算时取模使得起始子帧分配的资源位置映射至该子帧中可用的位置。例如:
Figure PCTCN2014085867-appb-000028
或者也可以采用另外一种映射方法:对CCE数量较小的子帧计算时进行多对一资源位置映射。例如:
Figure PCTCN2014085867-appb-000029
M优选大于1的正整数。
或者,对资源位置进行变更处理时,对重复传输时各个子帧直接从CCE index C开始确定所述资源位置。即对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。优选的C取值为0、16。
图6为采用本发明实施例提供的技术方案,在覆盖增强场景下控制信息重复传输资源占用示意图;图7为采用本发明实施例提供的技术方案,在覆盖增强场景下控制信息在各子帧CCE数量不等时重复传输资源占用示意图。
本发明实施例还提供了一种控制信息的传输装置,该装置可以位于基站,设置为实现上述的控制信息的传输方法。
图4为根据本发明实施例的控制信息的传输装置的结构示意图,如图4所示,该装置包括:确定模块42,设置为根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;发送模块44,设置为在所述资源上重复发送所述控制信息。
可选地,所述确定模块42还设置为在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
可选地,所述确定模块42可以包括:第一确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值;第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送使用的资源。
可选地,所述确定模块42可以包括:第二确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值和初始值Y-1;第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送操作使用的资源。
可选地,该装置还可以包括:处理模块,设置为在各个所述子帧的控制信道单元CCE数量不等时,对所述资源在所述各个子帧中的位置进行变更处理,使得所述各个子帧中的所述资源位置相同。
可选地,所述处理模块通过以下方式之一对所述资源在所述多个子帧中的位置进行变更处理:
在所述各个子帧中从相同的NCCE,k个CCE中选择设置为传输所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;
对所述各个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;
对所述重复传输控制信息的各个子帧,直接从同一个CCE序号开始分配传输所述控制信息的资源。
可选地,所述处理模块通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:
对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,对该子帧中的CCE数量进行取模,使得重复发送控制信息在起始子帧分配的资源位置能够映射至该CCE数量较小的子帧中可用的位置;
对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,进行多对一资源位置映射。
根据本发明实施例,还提供了一种控制信息的接收装置,该装置可以位于终端,设置为实现上述的控制信息的接收方法。
图5为根据本发明实施例的控制信息的接收装置的结构示意图,如图5所示,该装置主要包括:确定模块52,设置为根据预定义信息确定多个子帧上重复传输控制信息的资源位置,其中,所述预定义信息至少包括以下之一:起始子帧、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;接收模块54,设置为在所述资源位置重复接收内容相同的控制信息。
可选地,所述确定模块52还设置为:在需要执行新的重复接收操作时,按照所述新的控制接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
可选地,所述确定模块52可以包括:第一确定单元,设置为根据所述新的重复操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值;第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得所述新的重复接收操作对应的资源位置不同于上一次重复接收操作的资源位置。
可选地,所述确定模块52可以包括:第二确定单元,设置为根据所述新的重复接收操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值和初始值Y-1;第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复接收操作分配的资源位置不同于上一次的重复接收操作使用的资源位置。
可选地,该装置还可以包括:处理模块,设置为所述各个子帧中的控制信道单元CCE数量不等,对所述各个子帧中的所述资源位置进行变更处理,使得所述多个子帧中的所述资源位置相同。
可选地,所述处理模块通过以下方式之一对所述各个子帧中的所述资源位置进行变更处理:
在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;
对所述多个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;
对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。
可选地,所述处理模块可以通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:
对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,对该子帧中的CCE数据进行取模,使得起始子帧中的所述资源位置映射能够该CCE数量较小的子帧中可用的位置;
对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,进行多对一资源位置映射。
根据本发明实施列,还提供了一种控制信息的传输系统,该系统包括:基站和终端,其中,所述基站可以包括上述的控制信息的传输装置,所述终端可以包括上述的控制信息的接收装置。
下面通过具体优选实施例对本发明实施例提供的技术方案进行说明。
实施例1
本实施例对FDD(Frequency Division Duplexing,频分双工)系统下,控制信息传输方法进行详细描述说明。
基站根据起始子帧、系统帧号、重复次数为终端在多个子帧上分配资源重复发送内容相同控制信息,并且在多个子帧上使用的资源位置相同。
该控制信息以CCE资源为单位进行占用,选用聚合等级AL=8,即使用8个CCE资源。系统带宽此时为10MHz,除去其他信道和导频占用的控制区域资源,起始子帧k0的CCE数量
Figure PCTCN2014085867-appb-000030
为44。此时其RNTI值为200。则在起始子帧k0=0,SFN=0中分配的资源按照下述公式计算为,k=0,Y0=(39827·200)mod65537=35423,CCE占用从编号24开始的连续8个CCE资源。
Figure PCTCN2014085867-appb-000031
Figure PCTCN2014085867-appb-000032
Y-1=nRNTI
A=39827,D=65537
根据
Figure PCTCN2014085867-appb-000033
以及k为k0,k0+1,...,k0+N-1,在重复传输的N=10,h=10个子帧中使用相同的CCE资源。
接着为该终端以相同RNTI值在起始子帧k0=0,SFN=1中分配的资源,此时
Figure PCTCN2014085867-appb-000034
按照同样的公式计算为,Y1=(39827·35423)mod65537=42359,CCE占用从编号32开始的连续8个CCE资源。
基站在该资源上重复发送内容相同的控制信息。
终端通过上述公式按照AL=1、2、4、8和各子帧使用相同的候选集盲检测接收重复传输的控制信息。
通过本实施例,重复传输的控制信息均可以分配到相同资源,降低了阻塞率,同时无线帧n与无线帧n+1在NCCE,k和m相同时,由于k的取值在两次重复时不同,使得各自使用的相同CCE位置在不同的重复传输时就产生随机化效果。
实施例2
本实施例对TDD(Time Division Duplexing,时分双工)系统下,控制信息传输采用本发明所提供的方法进行详细描述说明。
基站根据起始子帧、系统帧号、重复次数为终端在多个子帧上分配资源重复发送内容相同控制信息,并且在多个子帧上使用的资源位置相同。
该控制信息以CCE资源为单位进行占用,选用聚合等级AL=4,即使用4个CCE资源。系统带宽此时为10MHz,除去其他信道和导频占用的控制区域资源,起始子帧k0的CCE数量
Figure PCTCN2014085867-appb-000035
为44。此时其RNTI值为300。则在起始子帧k0=0,SFN=53中分配的资源按照下述公式计算为,k=2,Y0=(39827·300)mod65537=20366,Y1=(39827·20366)mod65537=30770,Y2=(39827·30770)mod65537=427,CCE占用从编号36开始的连续4个CCE资源。
Figure PCTCN2014085867-appb-000036
Figure PCTCN2014085867-appb-000037
Y-1=nRNTI
A=39827,D=65537
根据
Figure PCTCN2014085867-appb-000038
C=10以及k为k0,k0+1,...,k0+N-1,在重复传输的N=10,h=4个子帧中使用相同的CCE资源,此时使用上下行子帧配置1。
接着为该终端以相同RNTI值在起始子帧k0=5,SFN=55中分配的资源,此时
Figure PCTCN2014085867-appb-000039
按照同样的公式计算为,k=5,Y3=(39827·427)mod65537=32046,Y4=(39827·32046)mod65537=28504,Y5=(39827·28504)mod65537=62431,CCE占用从编号24开始的连续4个CCE资源。
基站在该资源上重复发送内容相同的控制信息。
终端通过上述公式按照AL=1、2、4、8和各子帧使用相同的候选集盲检测接收重复传输的控制信息。
通过本实施例,重复传输的控制信息均可以分配到相同资源,降低了阻塞率,同时无线帧n与无线帧n+1在NCCE,k和m相同时,由于k的取值在两次重复时不同,使得各自使用的相同CCE位置在不同的重复传输时就产生随机化效果,同时避免由于SFN值过大导致运算迭代过多,降低处理复杂度。
实施例3
本实施例对FDD(Frequency Division Duplexing,频分双工)系统下,控制信息传输方法进行详细描述说明。
基站根据起始子帧、系统帧号、重复次数为终端在多个子帧上分配资源重复发送内容相同控制信息,并且在多个子帧上使用的资源位置相同。
该控制信息以CCE资源为单位进行占用,选用聚合等级AL=8,即使用8个CCE资源。系统带宽此时为10MHz,除去其他信道和导频占用的控制区域资源,起始子帧k0的CCE数量
Figure PCTCN2014085867-appb-000040
为44,其后子帧1-7的CCE数量与子帧0相同,子帧8、9CCE数量
Figure PCTCN2014085867-appb-000041
为35。此时其RNTI值为101。则在起始子帧k0=0,SFN=0中分配的资源按照下述公式计算为,k=1,Y0=(39827·101)mod65537=24770,Y1=(39827·24770)mod65537=51866,其中NCCE,k在重复传输时各个子帧中取最小值,即NCCE,k=min{NCCE,k},k=k0,k0+1,...,k0+N-1。CCE占用从编号16开始的连续8个CCE资源。
Figure PCTCN2014085867-appb-000042
Y-1=nRNTI
A=39827,D=65537
根据
Figure PCTCN2014085867-appb-000044
C=10以及k为k0,k0+1,...,k0+N-1,在重复传输的N=10,h=10个子帧中使用相同的CCE资源。
接着为该终端以相同RNTI值在起始子帧k0=0,SFN=102中分配的资源,此时
Figure PCTCN2014085867-appb-000045
按照同样的公式计算为,k=2,Y2=(39827·51866)mod65537=6479,CCE占用从编号24开始的连续8个CCE资源。
基站在该资源上重复发送内容相同的控制信息。
终端通过上述公式按照AL=1、2、4、8和各子帧使用相同的候选集盲检测接收重复传输的控制信息。
通过本实施例,重复传输的控制信息在CCE数量不等的各子帧中均可以分配到相同资源,降低了阻塞率,同时无线帧n与无线帧n+1在NCCE,k和m相同时,由于k的取值在两次重复时不同,使得各自使用的相同CCE位置在不同的重复传输时就产生随机化效果。
显然,本领域的技术人员应该明白,上述的本发明的各模块或各步骤可以用通用的计算装置来实现,它们可以集中在单个的计算装置上,或者分布在多个计算装置所组成的网络上,可选地,它们可以用计算装置可执行的程序代码来实现,从而,可以将它们存储在存储装置中由计算装置来执行,并且在某些情况下,可以以不同于此处的顺序执行所示出或描述的步骤,或者将它们分别制作成各个集成电路模块,或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样,本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已,并不用于限制本发明,对于本领域的技术人员来说,本发明可以有各种更改和变化。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
工业实用性
如上所述,本发明实施例提供的一种控制信息的传输、接收方法、装置及系统,具有以下有益效果:可以降低覆盖增强MTC终端在重复传输时控制信息的阻塞率,进而保证数据信息的正常发送和接收,减少系统开销以及时延。

Claims (42)

  1. 一种控制信息的传输方法,包括:
    基站根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;
    基站在所述资源上重复发送所述控制信息。
  2. 根据权利要求1所述的方法,其中,所述资源位于多个子帧,其中,所述资源在所述多个子帧上的位置相同或者具有特定的映射关系。
  3. 根据权利要求1或2所述的方法,其中,在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
  4. 根据权利要求3所述的方法,其中,所述新的重复发送操作使用的资源与上一次重复发送操作的资源的位置不同。
  5. 根据权利要求3所述的方法,其中,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源,包括:
    根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值;
    通过限制所述子帧k的搜索空间的起始位置取值,使得为所述新的重复发送操作使用的资源不同于上一次重复发送操作使用的资源。
  6. 根据权利要求3所述的方法,其中,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源,包括:
    根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值和初始值Y-1
    通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送操作使用的资源。
  7. 根据权利要求2所述的方法,其中,如果各个所述子帧中的控制信道单元CCE数量不等,则对所述资源在所述各个子帧中的位置进行变更处理,使得所述各个子帧中的所述资源位置相同。
  8. 根据权利要求7所述的方法,其中,对所述资源在所述各个子帧中的位置进行变更处理包括:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为传输所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值。
  9. 根据权利要求7所述的方法,其中,对所述资源在所述各个子帧中的位置进行变更处理包括:对所述各个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE。
  10. 根据权利要求9所述的方法,其中,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,对该子帧中的CCE数量进行取模,使得重复发送控制信息在起始子帧分配的资源位置能够映射至该CCE数量较小的子帧中可用的位置。
  11. 根据权利要求9所述的方法,其中,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,进行多对一资源位置映射。
  12. 根据权利要求7所述的方法,其中,对所述资源在所述各个子帧中的位置进行变更处理包括:对重复传输控制信息的所述各个子帧,直接从同一个CCE序号开始分配传输所述控制信息的资源。
  13. 根据权利要求1或2所述的方法,其中,所述控制信息为调度公有消息的控制信息时,则基站根据预定义信息和公有消息类型确定重复发送控制信息的资源。
  14. 根据权利要求13所述的方法,其中,调度所述公有消息类型为寻呼消息Paging和随即接入响应消息RAR时的控制信息的资源位置所在区域大于所述公有消息类型为系统信息SIB的资源位置的所在区域。
  15. 根据权利要求14所述的方法,其中,所述资源位置的所在区域包括以下至少之一:聚合等级数量、候选集数量。
  16. 一种控制信息的接收方法,包括:
    终端根据预定义信息确定多个子帧上重复传输控制信息的资源位置,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;
    所述终端在所述资源位置重复接收内容相同的控制信息。
  17. 根据权利要求16所述的方法,其中,所述资源位于多个子帧,且所述多个子帧上的所述资源位置相同。
  18. 根据权利要求16或17所述的方法,其中,在需要执行新的重复接收操作时,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
  19. 根据权利要求18所述的方法,其中,所述新的重复接收操作对应的资源位置与上一次重复接收操作对应的资源位置不相同。
  20. 根据权利要求18所述的方法,其中,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置包括:
    根据所述新的重复操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值;
    通过限制所述子帧k的搜索空间的起始位置取值,使得所述新的重复接收操作对应的资源位置不同于上一次重复接收操作对应的资源位置。
  21. 根据权利要求18所述的方法,其中,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置,包括:
    根据所述新的重复接收操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值和初始值Y-1
    通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复接收操作分配的资源位置不同于上一次的重复接收操作使用的资源位置。
  22. 根据权利要求17所述的方法,其中,如果所述各个子帧中的控制信道单元CCE数量不等,则对所述各个子帧中的所述资源位置进行变更处理,使得所述多个子帧中的所述资源位置相同。
  23. 根据权利要求22所述的方法,其中,对所述各个子帧中的所述资源位置进行变更处理包括:在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值。
  24. 根据权利要求22所述的方法,其中,所述各个子帧中的所述资源位置进行变更处理包括:对所述多个子帧中CCE数量较少的子帧进行映射后,确定该CCE数量较少的子帧中设置为传输所述控制信息的CCE。
  25. 根据权利要求24所述的方法,其中,对所述各个子帧中CCE数量较少的子帧进行映射,包括:对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,对该子帧中的CCE数据进行取模,使得起始子帧中的所述资源位置映射能够该CCE数量较小的子帧中可用的位置。
  26. 根据权利要求24所述的方法,其中,对所述各个子帧中CCE数量较少的子帧进行映射包括:对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,进行多对一资源位置映射。
  27. 根据权利要求22所述的方法,其中,所述各个子帧中的所述资源位置进行变更处理包括:对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。
  28. 一种控制信息的传输装置,包括:
    确定模块,设置为根据预定义信息确定重复发送控制信息的资源,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;
    发送模块,设置为在所述资源上重复发送所述控制信息。
  29. 根据权利要求28所述的装置,其中,所述确定模块还设置为在需要执行新的重复发送操作时,按照所述新的重复发送操作对应的所述预定义信息重新确定所述新的重复发送操作使用的资源。
  30. 根据权利要求29所述的装置,其中,所述确定模块包括:
    第一确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新的重复发送操作使用的子帧k的取值;
    第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送使用的资源。
  31. 根据权利要求29所述的装置,其中,所述确定模块包括:
    第二确定单元,设置为根据所述新的重复发送操作对应的所述预定义信息确定所述新重复发送操作使用的子帧k的取值和初始值Y-1
    第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复发送操作分配的资源不同于上一次重复发送操作使用的资源。
  32. 根据权利要求28所述的装置,其中,还包括:处理模块,设置为在各个所述子帧的控制信道单元CCE数量不等时,对所述资源在所述各个子帧中的位置进行变更处理,使得所述各个子帧中的所述资源位置相同。
  33. 根据权利要求32所述的装置,其中,所述处理模块通过以下方式之一对所述资源在所述多个子帧中的位置进行变更处理:
    在所述各个子帧中从相同的NCCE,k个CCE中选择设置为传输所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;
    对所述各个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;
    对所述重复传输控制信息的各个子帧,直接从同一个CCE序号开始分配传输所述控制信息的资源。
  34. 根据权利要求33所述的装置,其中,所述处理模块通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:
    对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,对该子帧中的CCE数量进行取模,使得重复发送控制信息在起始子帧分配的资源位置能够映射至该CCE数量较小的子帧中可用的位置;
    对所述CCE数量较小的子帧,在分配该子帧中传输所述控制信息的资源时,进行多对一资源位置映射。
  35. 一种控制信息的接收装置,包括:
    确定模块,设置为根据预定义信息确定多个子帧上重复传输控制信息的资源位置,其中,所述预定义信息至少包括以下之一:起始子帧k0、系统帧号SFN、重复次数或重复等级N、及用户标识UE ID;
    接收模块,设置为在所述资源位置重复接收内容相同的控制信息。
  36. 根据权利要求35所述的装置,其中,所述确定模块还设置为:在需要执行新的重复接收操作时,按照所述新的重复接收操作对应的所述预定义信息重新确定所述新的重复接收操作对应的资源位置。
  37. 根据权利要求36所述的装置,其中,所述确定模块包括:
    第一确定单元,设置为根据所述新的重复操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值;
    第一调整单元,设置为通过限制所述子帧k的搜索空间的起始位置取值,使得所述新的重复接收操作对应的资源位置不同于上一次重复接收操作对应的资源位置。
  38. 根据权利要求36所述的装置,其中,所述确定模块包括:
    第二确定单元,设置为根据所述新的重复接收操作对应的所述预定义信息确定所述新的重复接收操作对应的子帧k的取值和初始值Y-1
    第二调整单元,设置为通过限制所述子帧k的搜索空间起始位置取值和所述初始值Y-1的取值,使得为所述新的重复接收操作分配的资源位置不同于上一次的重复接收操作使用的资源位置。
  39. 根据权利要求35所述的装置,其中,还包括:处理模块,设置为所述各个子帧中的控制信道单元CCE数量不等,对所述各个子帧中的所述资源位置进行变更处理,使得所述多个子帧中的所述资源位置相同。
  40. 根据权利要求39所述的装置,其中,所述处理模块通过以下方式之一对所述各个子帧中的所述资源位置进行变更处理:
    在所述各个子帧中从相同的NCCE,k个CCE中选择设置为接收所述控制信息的资源,其中,NCCE,k为所述各个子帧中的CCE数量的最小值;
    对所述多个子帧中CCE数量较少的子帧进行映射后,确定该子帧中设置为传输所述控制信息的CCE;
    对所述各个子帧,直接从同一个CCE序号开始确定所述资源位置。
  41. 根据权利要求40所述的装置,其中,所述处理模块通过以下方式之一对所述各个子帧中CCE数量较少的子帧进行映射:
    对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,对该子帧中的CCE数据进行取模,使得起始子帧中的所述资源位置映射能够该CCE数量较小的子帧中可用的位置;
    对所述CCE数量较小的子帧,在确定该子帧中传输所述控制信息的资源位置时,进行多对一资源位置映射。
  42. 一种控制信息的传输系统,包括:基站和终端,其中,所述基站包括权利要求28至34中任一项所述的装置,所述终端包括权利要求35至41中任一项所述的装置。
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