WO2011044755A1 - 一种pdcch信息的发送方法、pdcch搜索空间的确定方法及装置 - Google Patents
一种pdcch信息的发送方法、pdcch搜索空间的确定方法及装置 Download PDFInfo
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- WO2011044755A1 WO2011044755A1 PCT/CN2010/001598 CN2010001598W WO2011044755A1 WO 2011044755 A1 WO2011044755 A1 WO 2011044755A1 CN 2010001598 W CN2010001598 W CN 2010001598W WO 2011044755 A1 WO2011044755 A1 WO 2011044755A1
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- pdcch
- search space
- base station
- determining
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
Definitions
- the present invention relates to the field of communications technologies, and in particular, to a method for transmitting PDCCH information.
- the Option IB scheme is reserved.
- the PDCCH can perform cross-carrier resource allocation indication, for example: indicating that a certain UE (User Equipment) is present.
- the PDCCHs of the carrier allocation information on the carrier 1, the carrier 2, and the carrier 3 are all placed on the carrier 2 for transmission, and are explicitly displayed by a CI (Carrier Indicator) (common CI is generally 1 to 3 bits).
- CI Carrier Indicator
- common CI is generally 1 to 3 bits.
- the mapping between the PDCCH and the carrier wave is indicated, and the schematic diagram of the cross-carrier PDCCH is specifically shown in FIG. 1 .
- the definition of the search space will be a problem to be analyzed. If the PDCCH search space definition according to Rel-8 is defined, the CCE occupied by the PDCCH (Control Channel Elements)
- the information of the control channel unit can be determined by the following formula:
- the CCE resources occupied by the mth candidate PDCCH are:
- the location information of the search space is specifically determined by the following formula:
- M L is the search space size corresponding to the aggregation resource level L
- the parameter for characterizing the start position of the PDCCH search space of the UE k may be rooted
- the value of the PDCCH search space start position of the UE k at different aggregation levels L is determined according to the parameter, and the parameter is determined by the following formula:
- a certain UE is configured to receive data on three carriers numbered 1, 2, 3, and PDCCHs corresponding to three carriers are transmitted on the second carrier (ie, using PDCCH option lb);
- PDCCH option lb PDCCH option lb
- data needs to be sent to the UE simultaneously on three carriers, and the eNB needs to send three PDCCHs to the UE on the number 2 carrier.
- the aggregation level used by the UE is 1, and the corresponding search space size is 6 CCEs, that is, 6 consecutive resource spaces (corresponding to 6 consecutive CCEs) as shown in FIG. 2, and each CCE Carrying a PDCCH
- the eNB searches for the three available CCEs allocated to the three PDCCHs of the UE in 0-5, but there are only two available CCEs in the search space, and therefore, it is impossible to allocate for each PDCCH.
- the corresponding CCE, there must be one PDCCH will not find idle resources, that is, the PDCCH is blocked.
- Summary of the invention provides a method for transmitting PDCCH information, a method for determining a PDCCH search space, and a device, so as to reduce a blocked probability when scheduling a cross-carrier PDCCH.
- an embodiment of the present invention provides a method for sending PDCCH information, including the following steps:
- the base station determines different search spaces corresponding to different PDCCHs according to the carrier indication CI information; the base station sends different PDCCH information to the corresponding terminal through the corresponding search space.
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines CI information
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information.
- the base station determines the CI information, which is specifically:
- the base station determines the CI information according to the information in the DCI field of the downlink control information.
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines control channel element CCE information according to the search space start parameter.
- the base station determines, according to the CI information of each PDCCH, a formula according to a search space starting parameter corresponding to each PDCCH, which is specifically:
- p is an integer set by the system
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the base station determines, according to the CI information of each PDCCH and the search space starting parameter, a formula according to the CCE information corresponding to each PDCCH, which is specifically:
- p is an integer set by the system
- L is the aggregate resource level
- M L is the search space size corresponding to the aggregation resource level L.
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the base station determines, according to the CI information of each PDCCH, a formula according to a search space starting parameter corresponding to each PDCCH, which is specifically:
- C/ is the decimal value corresponding to the CI information
- p is an integer set by the system
- the base station determines, according to the CI information of each PDCCH and the search space starting parameter, a formula according to the CCE information corresponding to each PDCCH, which is specifically:
- Ci is the decimal value corresponding to the CI information.
- p is an integer set by the system
- L is the aggregate resource level
- M L is the search space size corresponding to the aggregation resource level L.
- the method further includes:
- an embodiment of the present invention further provides a method for determining a PDCCH search space, including the following steps:
- the base station determines carrier indication CI information
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information.
- the base station determines CI information, specifically:
- the base station determines CI information according to information in a DCI field of the downlink control information.
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines control channel element CCE information according to the search space start parameter.
- the base station determines, according to the CI information of each PDCCH, a formula according to a search space starting parameter corresponding to each PDCCH, which is specifically:
- Y k ⁇ A(Y k _ x + P *n CI )) modD ⁇
- nci the decimal value corresponding to the CI information.
- p is an integer set by the system
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically: Determining, by the base station, a search space starting parameter corresponding to each PDCCH;
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the base station determines, according to the CI information of each PDCCH and the search space starting parameter, a formula according to the CCE information corresponding to each PDCCH, which is specifically:
- p is an integer set by the system
- L is the aggregate resource level
- M L is the search space size corresponding to the aggregation resource level L.
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information, specifically:
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the base station determines, according to the CI information of each PDCCH, a formula according to a search space starting parameter corresponding to each PDCCH, which is specifically:
- the base station determines, according to the CI information of each PDCCH and the search space starting parameter, a formula according to the CCE information corresponding to each PDCCH, which is specifically:
- p is an integer set by the system
- L is the aggregate resource level
- M 1 is the search space size corresponding to the aggregation resource level L.
- the method further includes:
- the base station quantizes the CI information.
- the base station further includes:
- an embodiment of the present invention further provides a base station, including:
- a first determining module configured to determine carrier indication CI information
- a second determining module connected to the first determining module, configured to be configured according to the first determining module
- the determined CI information determines different search spaces corresponding to different physical downlink control information PDCCH.
- the first determining module is specifically configured to determine CI information according to information in a DCI field of the downlink control information.
- the second determining module specifically includes:
- a parameter determining submodule configured to determine, according to CI information of each PDCCH, a search space starting parameter corresponding to each PDCCH;
- the information determining submodule is connected to the parameter determining submodule for determining CCE information according to the search space starting parameter determined by the parameter determining the stator module.
- the second determining module specifically includes:
- a parameter determining submodule configured to determine a search space starting parameter
- the information determining sub-module is connected to the parameter determining sub-module, and is configured to determine CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter determined by the parameter determining sub-module.
- the second determining module specifically includes:
- a parameter determining submodule determining, according to CI information of each PDCCH, a search space starting parameter corresponding to each PDCCH;
- the information determining sub-module is connected to the parameter determining sub-module, and is configured to determine CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter determined by the parameter determining sub-module.
- the second determining module further includes:
- the base station further includes:
- the sending module is connected to the second determining module, and is configured to send different PDCCHs to the corresponding terminals by using different search spaces determined by the second determining module.
- an embodiment of the present invention further provides a method for determining a PDCCH search space, including the following steps:
- the terminal determines the search space of the PDCCH corresponding to each received downlink wave according to the information in the preset information and the strategy of determining different search spaces corresponding to different PDCCHs applied by the network side.
- the terminal determines the search space of the PDCCH corresponding to each received downlink carrier according to the “ c/ information and the policy of the different search space corresponding to the PDCCH that is determined by the network side to be determined by the network side.
- the terminal receives its corresponding PDCCH in the determined search spaces.
- the receiving, by the terminal, the PDCCH corresponding to the PDCCH in the determined search space specifically includes:
- the terminal receives the PDCCH in the corresponding search space according to the CI information, and if not, the terminal continues to acquire other PDCCHs, and determines the other
- the embodiment of the present invention further provides a terminal. , including:
- a configuration module configured to configure preset information according to the information sent by the network side, where the preset information includes at least a message; the determining module is configured to use the n ci information in the preset information configured by the configuration module, and A policy for determining different search spaces corresponding to different physical downlink control channels PDCCH, which is applied by the network side, determines a search space of the PDCCH corresponding to each received downlink carrier.
- the terminal further includes:
- a receiving module configured to receive a self phase in each of the search spaces determined by the determining module Corresponding PDCCH.
- the terminal further includes:
- a determining module configured to acquire a PDCCH in the search spaces determined by the determining module, and determine whether the carrier indication CI information included in the PDCCH is consistent with information in preset information configured by the configuration module If the information is inconsistent, it is determined whether the CI information corresponding to the other PDCCHs is consistent with the " c/ information" in the preset information configured by the configuration module, until the PDCCHs in each search space in each downlink carrier are all completed.
- the receiving module is further configured to: when the determination result of the determining module is consistent, receive the PDCCH in the corresponding search space according to the CI information.
- the embodiment of the invention has the following advantages:
- a different search space may be allocated to the PDCCH of the terminal, so that the base station and the terminal can accurately determine each downlink carrier.
- the search space of the PDCCH thereby reducing the blocking probability in the PDCCH scheduling process and improving the reliability of the PDCCH transmission.
- FIG. 1 is a schematic diagram of a cross-carrier PDCCH in the prior art
- FIG. 2 is a schematic diagram of a search space in the prior art
- FIG. 3 is a schematic diagram of a DCI structure of an Option IB of the prior art
- FIG. 4 is a schematic flow chart of a method for sending PDCCH information according to an embodiment of the present disclosure
- FIG. 5 is a schematic flowchart of a method for receiving PDCCH information according to an embodiment of the present disclosure
- FIG. 6 is a schematic diagram of determining a separate PDCCH resource placement space based on CI in a specific application scenario according to an embodiment of the present disclosure
- FIG. 7 is a schematic structural diagram of a base station according to an embodiment of the present disclosure
- FIG. 8 is a schematic structural diagram of a second determining module in an application scenario according to an embodiment of the present disclosure
- FIG. 9 is a schematic structural diagram of a second determining module in another application scenario according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram of a second determining module in another application scenario according to an embodiment of the present disclosure.
- FIG. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention. detailed description
- the existing search space determining manner improves the probability of occurrence of blocking during transmission.
- the PDCCH is a PDCCH that is used to implement cross-carrier scheduling, and includes a PDCCH responsible for the current carrier scheduling and a PDCCH scheduled by other carriers.
- the embodiment of the present invention provides a method for determining a PDCCH search space, which is applied to a system for transmitting indication information of multiple PDCCHs to which the same terminal belongs through the same carrier wave.
- the CI information is introduced in the setting manner of the search space of the cross-carrier PDCCH. Therefore, the search space indicating multiple PDCCHs across the carrier may be independently set, and the terminal may be notified that the corresponding PDCCH may be acquired according to the corresponding search space.
- the implementation of the technical solution is based on the cross-carrier PDCCH design.
- the cross-carrier PDCCH is added to the DCI (Downlink Control Information) field of the original Rel-8, and a CI field (usually including 1 to 3 bits) is added. Used to indicate the relationship between the PDCCH and the carrier across the carrier.
- the embodiment of the invention provides a method for transmitting PDCCH information, and the specific processing procedure is as follows:
- the base station determines different search spaces corresponding to different PDCCHs according to the CI information; and then the base station sends different PDCCHs to the corresponding terminals through the corresponding search spaces.
- the process of determining, by the base station, different search spaces corresponding to different PDCCHs according to the CI information may be, but is not limited to, the following:
- the base station first determines the CI information, and then determines the different search spaces corresponding to different PDCCHs according to the determined CI information.
- the base station may, but is not limited to, determine CI information based on information in the DCI field.
- a method for transmitting PDCCH information includes the following steps:
- Step S401 The base station determines CI information.
- the base station can determine the CI information through the information in the DCI field.
- Step S402 The base station determines different search spaces corresponding to different PDCCHs according to the CI information.
- the determination of the search space includes two steps. The first is the determination of the search space start parameter y *. After the parameter is determined, the specific value of the start position of the search space can be determined by the corresponding method, and then, the CCE information is further determined. Thereby completing the determination of the search space.
- Solution 1 Introduce CI information in the process of determining the start of the search space corresponding to each PDCCH, and determine different search spaces.
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines corresponding CCE information according to the search space starting parameter.
- the CI information is introduced in the process of determining the starting parameters of the search space. Initiating, determining, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH, and then determining corresponding CCE information by using a search space start parameter determined according to the CI information, thereby implementing different determination according to the CI information. Processing of different search spaces corresponding to the PDCCH.
- Solution 2 Introducing CI information in the process of determining CCE information corresponding to each PDCCH, and determining different search spaces.
- the base station determines a search space starting parameter corresponding to each PDCCH
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the process of determining the starting parameters of the search space is still processed according to the existing processing mode.
- the CI information is introduced into the subsequent CCE information determining process, thereby implementing The processing of different search spaces corresponding to different PDCCHs is determined according to the CI information.
- Solution 3 Introducing CI information in the process of determining the search space starting parameters and CCE information corresponding to each PDCCH, and determining different search spaces.
- the base station determines, according to the CI information of each PDCCH, a search space start parameter corresponding to each PDCCH;
- the base station determines CCE information corresponding to each PDCCH according to the CI information of each PDCCH and the search space starting parameter.
- the CI information is introduced not only in the process of determining the start parameters of the search space, but also the search space start parameter corresponding to each PDCCH is determined according to the CI information of each PDCCH, and in the process of determining the subsequent CCE information.
- the CI information is also introduced, that is, the corresponding CCE information is determined by the CI information and the search space start parameter determined according to the CI information, thereby implementing the process of determining different search spaces corresponding to different PDCCHs according to the CI information.
- the foregoing three methods include a process of performing quantization conversion on CI information before implementation, so that the quantized converted CI information can be applied to the specific determination process.
- Step S403 The base station sends a different PDCCH to the corresponding terminal by using a corresponding search space.
- the above technical flow is implemented on the base station side or the network side. In the following, the technical solution proposed by the embodiment of the present invention will be described from the terminal side.
- a method for receiving PDCCH information includes the following steps: Step S501: A terminal responds according to Mc information in preset information and a PDCCH determined by a network side to determine different PDCCHs. The strategy of different search spaces determines the search space of the PDCCH in each downlink carrier received. Before the step, the terminal can learn the "c/ information corresponding to each downlink wave by using the preset information, and the terminal determines each search space in the downlink wave according to the information of c , so as to perform subsequent operations.
- the foregoing preset information is information directly configured by the network side to the terminal, where the content may include Wc , (" c refers to the number of the network side configured to the terminal that may need to receive the carrier, ⁇ " c ⁇ constitutes the largest set of carrier numbers that the network side needs to receive for the terminal), " RNTI and"
- the terminal in order to determine the search space, the terminal also needs to know the policy of determining different search spaces corresponding to different PDCCHs applied by the network side, so as to determine the corresponding search space by using the W c/information according to the policy, in such a process.
- the obtaining manner of the policy may be uniformly set in the system in advance, or may be obtained through information interaction, and the specific application manner does not affect the protection scope of the present invention.
- the network side sends the PDCCH to the terminal through different resource placement spaces, because different available resources exist in different resource placement spaces, for each PDCCH. Different available spaces can be allocated in different resource placement spaces to avoid blocking.
- the terminal Since the multiple PDCCHs corresponding to the terminal itself are distributed in different search spaces, Therefore, the terminal needs to detect each search space in the current downlink carrier, so as to find the PDCCH carried therein, and the terminal does not know the location of the search space in the downlink carrier at first, and therefore needs to be in the downlink carrier according to the ⁇ information. Determine the location of the search space.
- Step S502 The terminal receives its corresponding PDCCH in each determined search space.
- whether the terminal receives the PDCCH is required to be self-corresponding.
- the judgment of the PDCCH, and the determination may be performed by: comparing whether the CI information included in the acquired PDCCH is consistent with the Wc information in the preset information, the terminal finds the CI information corresponding to the UE, and according to the CI information Obtain the corresponding PDCCH.
- the terminal acquires the PDCCH in each of the determined search spaces, and determines whether the CI information included in the PDCCH is consistent with the " c information" in the preset information.
- the terminal receives the PDCCH in the corresponding search space according to the CI information. If the UE is inconsistent, the terminal continues to determine whether the CI information included in the other PDCCH is consistent with the " c/ information in the preset information, until in each downlink carrier. The PDCCHs in each search space are all judged.
- the network side will send corresponding indication information to the terminal, thereby implicitly informing the terminal of the resource placement space where the PDCCH is located, and correspondingly The PDCCH is obtained in the search space, and the information is indicated by the CI information.
- the CI information may be carried in the DCI information and sent to the terminal.
- the CI information can also be carried in the other message or information to the terminal, and the specific transmission form does not affect the protection scope of the present invention.
- the terminal After the terminal obtains a PDCCH, the terminal further acquires the CI information included in the PDCCH, and compares with the related parameters in the preset information to determine whether the two are consistent. For example, comparing the value corresponding to the CI information with the " c " in the preset information, the judgment is No.
- the terminal confirms that the CI information is the CI information corresponding to itself.
- the PDCCH included in the foregoing determined search space is corresponding to the terminal.
- the PDCCH can be directly obtained by the terminal.
- the terminal continues to detect other PDCCHs until the detection is completed.
- the PDCCH obtained by the foregoing is not the PDCCH corresponding to the terminal, and the terminal needs to continue to perform the detection. If the correct search space cannot be found after the detection is completed, the PDCCH cannot be obtained, and the retrieval failure may be determined.
- the embodiment of the invention has the following advantages:
- the process of adding the CI information to the search space may allocate different search spaces for the cross-carrier PDCCH of one terminal, and the station and the terminal can accurately determine the PDCCH of each downlink carrier.
- the search space thereby reducing the blocking probability in the PDCCH scheduling process and improving the reliability of the PDCCH transmission.
- the CI field is introduced into the search space determining process of the PDCCH, so that multiple cross-carrier PDCCHs of the same UE are placed in different resource placement spaces, and the resource placement space is used as the resource placement space.
- the search space of the UE performs the acquisition of the corresponding PDCCH, thereby reducing the PDCCH blocking probability.
- the CI information may be introduced into the process of determining the search space start parameter y *, or the process of introducing the CCE information, or both.
- the technical solution proposed by the embodiment of the present invention is described by taking the determination process of introducing the CI information into the search space starting parameter y * as an example.
- p is an integer set by the system
- each PDCCH will be allocated in an independent search space.
- each search space contains 6 consecutive resource units (a total of 6 CCEs). In this mode, it is easier to find the resource for transmitting the PDCCH, that is, the blocking probability of the PDCCH can be reduced. Similar to this, taking the process of introducing CI information into CCE information as an example, the present invention The technical solutions proposed in the embodiments are explained.
- the search space starting parameter is determined, and the specific determining manner may be determined according to the prior art, and may be directly calculated without combining the CI information, or may be combined according to the foregoing solution or other solutions based on the technical idea of the present invention.
- the calculation of the CI information is performed, and the change of the acquisition manner of the specific search space starting parameter does not affect the protection scope of the embodiment.
- p is an integer set by the system
- L is the aggregate resource level
- M L is the search space size corresponding to the aggregation resource level L
- the CCE information calculated according to the above formula is used to determine a corresponding search space, and scheduling of the PDCCH is performed. Further, the technical solution proposed by the embodiment of the present invention can also introduce the CI in the process of determining the search space starting parameter 1 ⁇ and the CCE information determining process. Since the introduction manner is diverse, it will not be described here.
- the specific introduction manner is not limited to the introduction manners given in the above calculation formula. Any manner of introducing the technical effects of transmitting different PDCCHs in different resource placement spaces should belong to the technical solution of the present invention.
- the embodiment of the invention has the following advantages:
- the process of adding the CI information to the search space may allocate different search spaces for the cross-carrier PDCCH of one terminal, so that the base station and the terminal can accurately determine each downlink wave.
- PDCCH search space thereby reducing PDCCH
- the blocking probability in the scheduling process is used to improve the reliability of the PDCCH transmission.
- a first determining module 71 configured to determine CI information
- the second determining module 72 is connected to the first determining module 71, and is configured to determine different search spaces corresponding to different PDCCHs according to the CI information determined by the first determining module 71.
- the first determining module 71 is specifically configured to determine CI information according to information in a DCI field.
- the base station further includes:
- the sending module 73 is connected to the second determining module 72, and is configured to send different PDCCHs to the corresponding terminals by using different search spaces determined by the second determining module 72.
- the second determining module 72 includes the following three configuration schemes for determining different search spaces corresponding to different PDCCHs:
- the composition of the second determining module 72 includes:
- the quantization sub-module 721 is configured to perform quantization conversion on the CI information determined by the first determining module 71.
- the parameter determining sub-module 722 is connected to the quantization sub-module 721 for using the quantization sub-module.
- the CI information of each PDCCH after performing the quantization conversion on the 721 determines a search space start parameter corresponding to each PDCCH;
- the information determining sub-module 723 is coupled to the parameter determining sub-module 722 for determining CCE information according to the search space starting parameter determined by the parameter determining sub-module 722.
- the configuration of the second determining module 72 includes: a quantization submodule 721, The CI information determined by the first determining module 71 is quantized and converted; the parameter determining sub-module 722 is configured to determine a search space starting parameter; The information determining sub-module 723 is connected to the quantization sub-module 721 and the parameter determining sub-module 722, and is configured to perform CI information of each PDCCH according to the quantization sub-module 721 and the search space start determined by the parameter determining sub-module 722.
- the parameter determines CCE information corresponding to each PDCCH.
- the configuration of the second determining module 72 includes :
- the quantization sub-module 721 is configured to perform quantization conversion on the CI information determined by the first determining module 71.
- the parameter determining sub-module 722 is connected to the quantization sub-module 721, and the CI of each PDCCH after the quantization and conversion according to the quantization sub-module 721 is performed.
- the information determines a search space starting parameter corresponding to each PDCCH;
- the information determining sub-module 723 is connected to the quantization sub-module 721 and the parameter determining sub-module 722, and configured to perform, according to the quantized and converted PDCCH information of the PDCCH according to the quantization sub-module 721, and the search space starting parameter determined by the parameter determining sub-module 722.
- the CCE information corresponding to each PDCCH is determined.
- FIG. 11 a schematic structural diagram of a terminal according to an embodiment of the present invention includes:
- the configuration module 111 is configured to configure preset information according to information sent by the network side, where the preset information includes at least c/ information.
- the foregoing preset information is directly configured by the network side to the terminal, where the content may include the Wc (the Wc refers to the number that the network side needs to receive the carrier, and the network side configuration is configured to The terminal needs to receive the maximum set of the carrier number, and the " RNTI and the determination module 112" is configured to: according to the " c/ information in the preset information configured by the configuration module 111 and the corresponding PDCCH determined by the network side. The strategy of different search spaces determines the search space of the PDCCH in each downlink carrier received. Further, the terminal further includes:
- the receiving module 113 is configured to receive its corresponding PDCCH in each search space determined by the determining module 112.
- the terminal in order to implement the CI information comparison, the corresponding CI information is obtained, and the corresponding PDCCH is obtained, the terminal further includes:
- the determining module 114 is configured to obtain the PDCCH in each search space determined by the determining module 112, and determine whether the CI information included in the PDCCH is consistent with the " c/ information in the preset information configured by the configuration module 111, if not, Then, the determining module 114 continues to determine the inclusion of other PDCCHs.
- the receiving module 113 is further configured to: when the determination result of the determining module 114 is consistent, receive the PDCCH according to the CI information in the corresponding search space.
- the embodiment of the invention has the following advantages:
- the process of adding the CI information to the search space may allocate different search spaces for the cross-carrier PDCCH of one terminal, so that the base station and the terminal can accurately determine the PDCCH in each downlink carrier.
- the search space thereby reducing the blocking probability in the PDCCH scheduling process and improving the reliability of the PDCCH transmission.
- the present invention can be implemented by hardware, or by software plus necessary general hardware platform.
- the technical solution of the present invention may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.), including several The instructions are for causing a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present invention.
- modules in the apparatus in the embodiment can be described in accordance with an embodiment. Performing the distribution in the apparatus of the embodiment, it is also possible to make corresponding changes in one or more apparatuses different from the embodiment.
- the modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.
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Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
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KR1020127012161A KR101399000B1 (ko) | 2009-10-12 | 2010-10-12 | Pdcch 정보의 발송 방법, pdcch 검색 공간의 확정 방법 및 장치 |
JP2012533456A JP5420082B2 (ja) | 2009-10-12 | 2010-10-12 | Pdcch情報送信方法、pdcch検索空間確定方法及び装置 |
EP10822987.3A EP2490495B1 (en) | 2009-10-12 | 2010-10-12 | Method for transmitting physical downlink control channel (pdcch) information, method for determining pdcch search space and devices thereof |
US13/501,549 US8824426B2 (en) | 2009-10-12 | 2010-10-12 | Method for transmitting physical downlink control channel (PDCCH) information, method for determining PDCCH search space and devices thereof |
RU2012117422/08A RU2552178C2 (ru) | 2009-10-12 | 2010-10-12 | Способ передачи информации по физическому нисходящему каналу управления (pdcch), способ и средства определения области поиска |
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CN200910093533 | 2009-10-12 | ||
CN200910093533.8 | 2009-10-12 | ||
CN201010258743.0 | 2010-08-20 | ||
CN201010258743.0A CN102045849B (zh) | 2009-10-12 | 2010-08-20 | 一种pdcch信息的发送方法、pdcch搜索空间的确定方法及装置 |
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PCT/CN2010/001598 WO2011044755A1 (zh) | 2009-10-12 | 2010-10-12 | 一种pdcch信息的发送方法、pdcch搜索空间的确定方法及装置 |
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US (1) | US8824426B2 (zh) |
EP (1) | EP2490495B1 (zh) |
JP (1) | JP5420082B2 (zh) |
KR (1) | KR101399000B1 (zh) |
CN (1) | CN102045849B (zh) |
RU (1) | RU2552178C2 (zh) |
WO (1) | WO2011044755A1 (zh) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013015632A2 (ko) * | 2011-07-26 | 2013-01-31 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
CN103813459A (zh) * | 2012-11-05 | 2014-05-21 | 上海贝尔股份有限公司 | 用于确定ue的e-pdcch的搜索空间的方法和装置 |
US9503239B2 (en) | 2011-08-11 | 2016-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio network node, user equipment and methods therein |
US10349437B2 (en) | 2012-12-18 | 2019-07-09 | Xi'an Zhongxing New Software Co. Ltd. | Method for sending and detecting downlink control information, sending end, and receiving end |
Families Citing this family (24)
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WO2022045720A1 (ko) * | 2020-08-24 | 2022-03-03 | 엘지전자 주식회사 | Nr sl의 크로스 케리어 스케줄링을 지원하는 방법 및 장치 |
WO2023282663A2 (ko) * | 2021-07-09 | 2023-01-12 | 엘지전자 주식회사 | 무선 통신 시스템에서 물리 사이드링크 채널의 스케줄링을 위한 방법 및 그 장치 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009057283A1 (ja) * | 2007-10-29 | 2009-05-07 | Panasonic Corporation | 無線通信基地局装置、無線通信移動局装置および制御チャネル割当方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101022066B1 (ko) * | 2003-05-17 | 2011-03-17 | 엘지전자 주식회사 | 이동통신 시스템에서의 하향링크 제어채널 구조 및 이를이용한 시간-코드 할당방법 |
KR100943908B1 (ko) | 2008-02-19 | 2010-02-24 | 엘지전자 주식회사 | Pdcch를 통한 제어 정보 송수신 방법 |
KR101946223B1 (ko) * | 2009-06-15 | 2019-02-08 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | 캐리어 집성을 위한 제어 채널 공유 시스템 및 방법 |
US9351293B2 (en) * | 2009-09-11 | 2016-05-24 | Qualcomm Incorporated | Multiple carrier indication and downlink control information interaction |
-
2010
- 2010-08-20 CN CN201010258743.0A patent/CN102045849B/zh active Active
- 2010-10-12 EP EP10822987.3A patent/EP2490495B1/en active Active
- 2010-10-12 WO PCT/CN2010/001598 patent/WO2011044755A1/zh active Application Filing
- 2010-10-12 JP JP2012533456A patent/JP5420082B2/ja active Active
- 2010-10-12 US US13/501,549 patent/US8824426B2/en active Active
- 2010-10-12 KR KR1020127012161A patent/KR101399000B1/ko active IP Right Grant
- 2010-10-12 RU RU2012117422/08A patent/RU2552178C2/ru active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009057283A1 (ja) * | 2007-10-29 | 2009-05-07 | Panasonic Corporation | 無線通信基地局装置、無線通信移動局装置および制御チャネル割当方法 |
Non-Patent Citations (3)
Title |
---|
ALCATEL-LUCENT ET AL.: "Way forward on PDCCH for bandwidth extension in LTE-A", 3GPP TSG RAN WG1 MEETING #58, 24 August 2009 (2009-08-24) - 28 August 2009 (2009-08-28), pages 2, XP008156204 * |
FUJITSU: "CIF inclusion in PDCCH order", 3GPP TSG-RAN WG2 MEETING #70BIS, 28 June 2010 (2010-06-28) - 2 July 2010 (2010-07-02), pages 1, XP008156206 * |
See also references of EP2490495A4 * |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013015632A2 (ko) * | 2011-07-26 | 2013-01-31 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
WO2013015632A3 (ko) * | 2011-07-26 | 2013-04-04 | 엘지전자 주식회사 | 무선 통신 시스템에서 제어 정보의 전송 방법 및 장치 |
US9144070B2 (en) | 2011-07-26 | 2015-09-22 | Lg Electronics Inc. | Method and apparatus for transmitting control information in wireless communication system |
US9532353B2 (en) | 2011-07-26 | 2016-12-27 | Lg Electronics Inc. | Method and apparatus for transmitting control information in wireless communication system |
US9503239B2 (en) | 2011-08-11 | 2016-11-22 | Telefonaktiebolaget Lm Ericsson (Publ) | Radio network node, user equipment and methods therein |
CN103813459A (zh) * | 2012-11-05 | 2014-05-21 | 上海贝尔股份有限公司 | 用于确定ue的e-pdcch的搜索空间的方法和装置 |
US10349437B2 (en) | 2012-12-18 | 2019-07-09 | Xi'an Zhongxing New Software Co. Ltd. | Method for sending and detecting downlink control information, sending end, and receiving end |
Also Published As
Publication number | Publication date |
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CN102045849A (zh) | 2011-05-04 |
KR20120068968A (ko) | 2012-06-27 |
RU2552178C2 (ru) | 2015-06-10 |
JP2013507853A (ja) | 2013-03-04 |
RU2012117422A (ru) | 2013-11-20 |
KR101399000B1 (ko) | 2014-05-27 |
JP5420082B2 (ja) | 2014-02-19 |
US20120201230A1 (en) | 2012-08-09 |
EP2490495A1 (en) | 2012-08-22 |
EP2490495B1 (en) | 2016-09-21 |
CN102045849B (zh) | 2014-06-11 |
EP2490495A4 (en) | 2013-04-03 |
US8824426B2 (en) | 2014-09-02 |
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