WO2015139439A1 - Procédé, dispositif et système de configuration et de détection de canal de commande - Google Patents

Procédé, dispositif et système de configuration et de détection de canal de commande Download PDF

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Publication number
WO2015139439A1
WO2015139439A1 PCT/CN2014/087357 CN2014087357W WO2015139439A1 WO 2015139439 A1 WO2015139439 A1 WO 2015139439A1 CN 2014087357 W CN2014087357 W CN 2014087357W WO 2015139439 A1 WO2015139439 A1 WO 2015139439A1
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WIPO (PCT)
Prior art keywords
terminal
base station
serving cell
information
control channel
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PCT/CN2014/087357
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English (en)
Chinese (zh)
Inventor
郭森宝
戴博
左志松
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中兴通讯股份有限公司
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Publication of WO2015139439A1 publication Critical patent/WO2015139439A1/fr

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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
    • 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
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel

Definitions

  • the present invention relates to the field of communications, and in particular to a control channel configuration, detection method, apparatus, and system.
  • LTE Long Term Evolution
  • PCFICH Physical Downlink Control Format Indicator Channel
  • PHICH Physical Hybrid Automatic Retransmission Request Indicator Channel
  • PDCCH Physical Downlink Control Channel
  • the PDCCH is used to carry Downlink Control Information (DCI), and includes: uplink and downlink scheduling information, and uplink power control information.
  • DCI format DCI format
  • DCI format 1A DCI format 1A
  • DCI format 1B DCI format 1B
  • DCI format 1C DCI format 1D
  • DCI format 2A DCI format 3A and so on. among them:
  • DCI format 0 is used to indicate scheduling of a Physical Uplink Shared Channel (PUSCH);
  • DCI format 1, DCI format 1A, DCI format 1B, DCI format 1C, and DCI format 1D are used for different modes of code downlink scheduling of a Physical Downlink Shared Channel (PDSCH);
  • PDSCH Physical Downlink Shared Channel
  • DCI format 2A, DCI format 2B are used for different modes of space division multiplexing
  • the DCI format 3 and the DCI format 3A are used for different modes of the power control command of the physical uplink control channel (PUCCH, Physical Uplink Control Channel) and the PUSCH.
  • PUCCH Physical Uplink Control Channel
  • PUSCH Physical Uplink Control Channel
  • the physical resources of the PDCCH are transmitted in units of Control Channel Elements (CCEs).
  • the size of one CCE is 9 Resource Element Groups (REGs), that is, 36 REs.
  • One PDCCH may occupy 1, 2, 4 or 8 CCEs.
  • a tree-like aggregation is adopted, that is, a PDCCH occupying one CCE can start from an arbitrary CCE position; a PDCCH occupying two CCEs from an even CCE Position start; occupy 4
  • the PDCCHs of the CCEs start from the CCE position of an integer multiple of 4; the PDCCH occupying 8 CCEs starts from the CCE position of an integral multiple of 8.
  • Each aggregation level defines a search space, including a common search space and a UE-specific (UE-Specific) search space.
  • the number of CCEs in the entire search space is determined by the number of Orthogonal Frequency Division Multiplexing (OFDM) symbols and the number of PHICH groups occupied by the control region indicated by the PCFICH in each downlink subframe.
  • OFDM Orthogonal Frequency Division Multiplexing
  • the UE blindly detects all possible PDCCH code rates in the search space according to the DCI format of the transmission mode.
  • the base station sends information such as a Preamble Index and a PRACH Mask Index through the DCI format 1A.
  • the UE is configured by the upper layer to perform PDCCH decoding using a Random Access Radio Network Temporary Identifier (CRC), the UE should follow the PDCCH (Cyclical Redundancy Check).
  • CRC Random Access Radio Network Temporary Identifier
  • the UE shall decode the PDCCH and all correlations according to respective combinations defined in Table 2 below.
  • PDSCH Physical Downlink Control Channel
  • the LTE defines a PDCCH (Physical Downlink Control Channel) bearer scheduling allocation and other control information.
  • PDCCH Physical Downlink Control Channel
  • Each PDCCH is composed of a number of CCEs (Control Channel Element), and the number of CCEs per subframe is determined by the PDCCH. The number and downstream bandwidth are determined.
  • the UE obtains the PDCCH by blind detection in the search space, and the search space is divided into a common search space and a UE-specific search space.
  • the public search space refers to the area that all UEs search for, which carries the cell-specific information.
  • the dedicated search space is a spatial range that a single UE will search for, and the dedicated search spaces of multiple UEs may overlap, but the general initial search location is different.
  • the UE working mode and the Radio Network Temporary Identity (RNTI) type for the Cyclic Redundancy Check (CRC) scrambling of the PDCCH are signaled by the higher layer signaling.
  • RNTI Radio Network Temporary Identity
  • CRC Cyclic Redundancy Check
  • Search space See Table 3 for the relationship between the aggregation level L and the number of candidate PDCCHs M (L) .
  • the aggregation level is the number of CCEs occupied by the PDCCH.
  • the correspondence between the aggregation level and the relative position of the first control channel unit of the PDCCH in the user-specific search space is shown in Table 4.
  • the terminal needs to send a Preamble to the base station side.
  • the base station side needs to detect the Preamble in the configured time and frequency domain unit. When the base station detects that the Preamble will send the random access response information Msg within the specified time window.
  • the terminal determines whether the base station detects the transmission of the Preamble by detecting the Msg 2, and if it detects its own Preamble, if it is a contention-based random access, the terminal also needs to send the Msg 3 to resolve the competition, and the terminal sends the Msg 3 After receiving the random access response information Msg 4 fed back by the base station, it is determined whether the Msg3 is received by the base station, and if the relevant identification information is detected, the contention resolution process is completed.
  • LTE-Advanced In the LTE-Advanced (LTE-Advance) system, since the LTE-Advanced network needs to be able to access the LTE user, its operating band needs to cover the current LTE band. However, there is no available 100 MHz spectrum bandwidth allocated in the current LTE frequency band. Therefore, one technical problem that LTE-Advanced needs to solve is to connect several consecutive component carriers (spectrums) distributed in different frequency bands (Component Carrier).
  • the carrier aggregation (CA, Carrier Aggregation) technology is used to form a 100 MHz bandwidth that can be used by LTE-Advanced. That is, for the aggregated spectrum, it is divided into n component carriers (spectrum), and the spectrum in each component carrier (spectrum) is continuous.
  • CA Carrier Aggregation
  • the component carrier may also be referred to as a serving cell (Serving Cell), and the primary component carrier may be referred to as a primary serving cell (Pcell, Primary Serving Cell), and the secondary component carrier may be referred to as a secondary serving cell (Scell, Secondary Serving). Cell).
  • serving Cell serving cell
  • Pcell Primary Serving Cell
  • Scell Secondary Serving Cell
  • the two eNBs with dual links adopt non-ideal backhual connections, and the scheduling between the two nodes is independent. Since independent scheduling is introduced, the terminal needs to detect the control channel on one or more carriers on the two eNBs respectively. In addition, the terminal needs to detect the CSS space on the SeNB, so as to obtain the random access Msg 2 information corresponding to the SeNB. Therefore, if the double link is introduced on the basis of the CA in the existing manner, the number of blind detections of the terminal is increased.
  • the present invention provides a configuration, a detection method, a device, and a system for controlling a channel to introduce at least the above problem by introducing a double link on the basis of the CA.
  • a method for configuring a control channel including: a base station groups a serving cell detected by a terminal according to a serving cell type and/or a subframe type; and the base station separately configures a terminal for each packet.
  • Detecting control channel information required for the control channel wherein the detection control channel information corresponding to the at least two packets is different, the detection control channel information includes at least one of: detecting a candidate location of the control channel; detecting the control The number of candidate locations of the channel; detecting the type of the control channel; detecting the number of times of the control channel.
  • grouping the serving cell detected by the terminal comprises: grouping the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1;
  • the method further includes: configuring, by the base station, the control channel information of the corresponding group of the base station by using the independent predefined signaling or the high layer signaling.
  • the serving cell is divided into two groups, one group is a serving cell of the primary serving base station MeNB, and the other group is a serving cell of the non-primary serving base station SeNB, and the MeNB and the SeNB respectively pass independent predefined or high-level letters.
  • the configuration detect the control channel information.
  • control channel is a control channel of a common search space.
  • the base station groups the serving cells detected by the terminal according to the subframe type, including: the SeNB groups the different subframes, and the subframes in which the common search space exists on the SPCell are divided into one group, and the other subframes are divided into a group.
  • the base station limits the maximum number of serving cells configured to the terminal to 4.
  • the base station limits the serving cell corresponding to the highest cell index to have a smaller number of control channel detections, and ensures that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the base station pre-defined terminal detects a subframe in a common search space of the non-primary base station corresponding to the primary serving cell, and does not detect a terminal-specific search space or terminal-specific control information of all serving cells configured by the non-primary base station.
  • the base station pre-defined terminal detects a subframe of random access response information in a common search space of a serving cell configured by a non-primary base station, and the terminal does not detect terminal dedicated of all serving cells configured by the non-primary base station. Search space or terminal-specific control information.
  • multiple serving cells configured under the non-primary base station are located in the same time advance group TAG.
  • the base station pre-defined terminal detects a subframe in a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect all the TAGs related to the common search space control information configured by the non-primary base station All or part of the control information of the serving cell.
  • the predefined terminal does not detect the non-primary on the subframe.
  • the non-primary base station when the non-primary base station is not in the random access process or the uplink keeps the synchronization, the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the corresponding The downlink control information of the serving cell and the DCI Format corresponding to the uplink control information.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, where the serving cell is Scheduling a carrier, and scheduling a scheduling carrier of the serving cell is located in another TAG that is performing a random access procedure, or the scheduling carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the corresponding serving cell.
  • the downlink control information and the DCI Format corresponding to the uplink control information are not detect the corresponding serving cell.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the scheduling carrier is located.
  • the predefined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell.
  • the base station pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and when the terminal detects the common search space related information in the common search space, the terminal only detects the DCI Format1A or the DCI Format 1C. .
  • the common search space related information includes at least one of the following information: random access response related information Msg2, system message information SI, and paging message information Paging.
  • the common search space related information includes: random access response information.
  • a method for detecting a control channel including: a terminal groups a serving cell detected by a terminal according to a serving cell and/or a subframe type; and the terminal separately determines a detection control channel for each packet.
  • the detection control channel information is required, wherein the detection control channel information comprises at least one of: detecting a candidate position of the control channel; detecting a number of candidate positions of the control channel; detecting a type of the control channel; detecting The number of times of the control channel; the detection control channel information corresponding to the at least two packets is different; the terminal detects the control channel of the serving cell in each packet according to the detection control channel information determined for each packet .
  • the terminal groups, according to the serving cell, the serving cell detected by the terminal, including: grouping the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇
  • the method further includes: configuring, by the terminal, the terminal detection control in each packet by independently pre-defining or receiving high-level signaling. The detection of the channel controls channel information.
  • the grouping, by the terminal, the serving cells of the N base stations into the S groups includes: the terminal grouping the serving cells corresponding to the primary serving base station MeNB into a group, and the serving cell corresponding to the non-primary serving base station SeNB Divided into a group.
  • control channel is a control channel of a common search space.
  • the terminal groups the serving cell detected by the terminal according to the serving cell and/or the subframe type, including: the terminal groups different subframes of the SeNB, and divides the subframe in which the common search space exists on the SPCell. One group and other sub-frames are divided into one group.
  • the method further includes: the maximum number of serving cells configured by the terminal restriction is 4.
  • the terminal restricts the serving cell corresponding to the lowest cell index to have a smaller number of control channel detections, and ensures that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the terminal pre-defined terminal detects a subframe in a common search space of the non-primary base station corresponding to the primary serving cell, and the terminal does not detect a terminal-specific search space or terminal-specific control information of all serving cells configured by the non-primary base station.
  • the terminal pre-defined terminal detects a subframe of random access response information in a common search space of a serving cell configured by a non-primary base station, and the terminal does not detect a terminal dedicated to all serving cells configured by the non-primary base station. Search space or terminal-specific control information.
  • multiple serving cells configured under the non-primary base station are located in the same time advance group TAG.
  • the terminal pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect all the TAGs related to the common search space control information configured by the non-primary base station. All or part of the control information of the serving cell.
  • the predefined terminal does not detect the non-primary on the subframe.
  • the non-primary base station when the non-primary base station is not in the random access process or the uplink is kept in synchronization, the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the corresponding service.
  • the downlink control information of the cell and the DCI Format corresponding to the uplink control information when the non-primary base station is not in the random access process or the uplink is kept in synchronization, the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the corresponding service.
  • the downlink control information of the cell and the DCI Format corresponding to the uplink control information when the non-primary base station is not in the random access process or the uplink is kept in synchronization, the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the corresponding service.
  • the non-primary base station when the non-primary base station is not in the random access procedure or the uplink keeps synchronization, the non-primary base station is configured to use the cross-carrier scheduling manner corresponding to the serving cell in the TAG, where the serving cell is Scheduling a carrier, and scheduling a scheduling carrier of the serving cell is located in another TAG that is performing a random access procedure, or the scheduling carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the corresponding serving cell.
  • the downlink control information and the DCI Format corresponding to the uplink control information when the non-primary base station is not in the random access procedure or the uplink keeps synchronization.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the scheduling carrier is located in another In a TAG in a TAG that does not have a random access procedure or in a TAG that does not need to perform a random access procedure or in which the uplink is synchronized, the predefined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell.
  • the terminal pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and when the terminal detects the common search space related information in the common search space, only the DCI Format1A or DCI Format is detected. 1C.
  • the common search space related information includes at least one of the following information: random access response related information Msg2, system message information SI, and paging message information Paging.
  • the common search space related information includes: random access response information.
  • a device for configuring a control channel comprising: a grouping module, configured to group a serving cell detected by a terminal according to a serving cell type and/or a subframe type; and a configuration module, configured to The detection control channel information required by the terminal to detect the control channel is configured separately for each packet, wherein the detection control channel information corresponding to the at least two packets is different, and the detection control channel information includes at least one of: detecting the control channel a candidate location; detecting a number of candidate locations of the control channel; detecting a type of the control channel; detecting a number of times of the control channel.
  • the grouping module is configured to group the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1; And configured to configure, by independent predefined signaling or higher layer signaling, detection control channel information of the detection control channel of the terminal corresponding group of the base station.
  • the grouping module is configured to group different subframes of the non-primary serving base station SeNB, and the subframes in which the common search space exists on the SPCell are divided into one group, and the other subframes are divided into one group.
  • the apparatus further includes: a control module, configured to limit the maximum number of serving cells configured to the terminal to 4.
  • control module is further configured to limit the serving cell corresponding to the highest cell index to have a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the configuration module is further configured to: configure, by using a predefined configuration, at least one of: a predefined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and does not detect the configuration of the non-primary base station.
  • the predefined terminal detects a subframe of random access response information in a common search space of a serving cell configured by the non-primary base station, and the terminal does not detect the non-primary base station configuration a terminal-specific search space or terminal-specific control information of all serving cells; the predefined terminal detects a subframe in a common search space of the non-primary base station corresponding to the primary serving cell, and the terminal does not detect the common search space configured by the non-primary base station Control all or part of the control information of all serving cells in the TAG associated with the information.
  • the configuration module is further configured to: configure, by a predefined configuration, at least one of the following information: when the non-primary base station corresponds to the primary serving cell, a random access procedure occurs, or when the common search space information related TAG is the primary serving cell In the TAG, the predefined terminal does not detect the downlink control information of all serving cells configured by the non-primary base station and the downlink control information format DCI Format corresponding to the uplink control information in the subframe; when the non-primary base station corresponds to the primary serving cell
  • the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI corresponding to the uplink control information.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the serving cell is the scheduled carrier. And scheduling the scheduling carrier of the serving cell to be located at another random connection In the TAG of the ingress process, the scheduling carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information; when the non-primary base station corresponds to the master When the serving cell is not in the random access process or the uplink is kept in synchronization, when the non-primary base station corresponds to the serving cell in the TAG, the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure.
  • the pre-defined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell in the TAG in the TAG or the uplink synchronization that does not need to perform the random access procedure; the predefined terminal detects the primary serving cell corresponding to the non-primary base station.
  • the subframe of the common search space when the terminal detects the common search space related information in the common search space, only the DCI Format1A or DCI Format 1C is detected.
  • a device for detecting a control channel includes: a grouping module configured to group a serving cell detected by a terminal according to a serving cell and/or a subframe type; and a determining module, configured to Determining, respectively, the detection control channel information required by the control channel, the detection control channel information comprising at least one of: detecting a candidate position of the control channel; and detecting a candidate of the control channel a number of locations; detecting a type of the control channel; detecting a number of times of the control channel; wherein, the detection control channel information corresponding to the at least two packets is different; and the detecting module is configured to determine, according to the determining module, each packet The detecting control channel information detects a control channel of a serving cell in each packet.
  • the grouping module is configured to group the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1;
  • the method is configured to configure the detection control channel information of the terminal detection control channel in each packet by independently pre-defining or receiving high-layer signaling.
  • the grouping module is further configured to group different subframes of the non-primary serving base station SeNB, and divide the subframes in which the common search space exists on the SPCell into one group, and the other subframes are divided into one group.
  • the method further includes: a control module, configured to limit the maximum number of serving cells configured for the terminal to 4.
  • control module is further configured to limit the serving cell corresponding to the lowest cell index to have a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the configuration module is further configured to: configure, by using a predefined manner, information of at least one of the following: the predefined terminal detects a subframe in a common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect the non- a terminal-specific search space or terminal-specific control information of all serving cells configured by the primary base station; the predefined terminal detects a subframe of random access response information in a common search space of the serving cell configured by the non-primary base station, and the terminal does not detect the subframe a terminal-specific search space or terminal-specific control information of all serving cells configured by the non-primary base station; the predefined terminal detects a subframe of the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect the configuration of the non-primary base station All or part of the control information of all serving cells in the TAG related to the common search space control information.
  • the configuration module is further configured to: configure at least one of the following information in a predefined manner: when a non-primary base station corresponds to a primary serving cell, a random access procedure occurs, or when the common search space information is associated with a TAG as a primary serving cell
  • the predefined terminal does not detect the downlink control information of all the serving cells configured by the non-primary base station and the DCI Format corresponding to the uplink control information, and the non-primary base station is not randomly connected to the primary serving cell.
  • the non-primary base station is in a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information;
  • the primary base station is not in the random access procedure or the uplink keeps synchronization corresponding to the primary serving cell, and the serving cell is a scheduled carrier, and the serving cell is a scheduled carrier, and the serving cell is a scheduling carrier.
  • the scheduling carrier of the serving cell is located in another TAG that is undergoing a random access procedure or
  • the scheduled carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information; when the non-primary base station corresponds to the primary serving cell is not in random
  • the access process or uplink remains synchronized when the non-primary base
  • the station corresponding to the serving cell in the TAG adopts a cross-carrier scheduling mode, and the scheduling carrier is located in another TAG that does not have a random access procedure or in a TAG that does not need to perform a random access procedure or in an TAG that is synchronized in the uplink.
  • the predefined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell; the predefined terminal detects a subframe in the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal detects the common search space in the common search space. For related information, only DCI Format 1A or DCI Format 1C is detected.
  • a control system for a control channel comprising: a base station and a terminal, wherein the base station and the control device of the above-mentioned control channel, the terminal includes the above-mentioned detection device for a control channel.
  • the present invention can ensure that the maximum number of times that the terminal detects the control channel does not exceed the predefined number of detections of the terminal without affecting the average throughput of the terminal and the real-time service scheduling.
  • FIG. 1 is a schematic structural diagram of a detection system of a control channel according to an embodiment of the present invention
  • FIG. 2 is a flowchart of a method for detecting a control channel according to an embodiment of the present invention
  • FIG. 3 is a flowchart of a method for configuring a control channel according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a device for configuring a control channel according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a device for detecting a control channel according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram of a system configuration scenario according to an embodiment of the invention.
  • the TAG is a time advance group, and one or more serving cells with the same or similar uplink timing are located in the same TAG.
  • the cell may also be referred to as a carrier, and one cell is on an independent carrier.
  • terminal service There are at least two base stations (eNBs) in the dual-link scenario, which are called MeNB and SeNB, respectively, the MeNB is the primary serving base station, and the SeNB is the non-primary serving base station (or the secondary serving base station), and the primary serving base station can be responsible for transmitting the SeNB to the terminal. Some system messages and some high-level configuration signaling.
  • the MeNB and the SeNB can implement independent MAC layer scheduling.
  • the MeNB can be configured with multiple serving cells (carriers), one of which is the primary serving cell of the MeNB, which is called the MPcell.
  • the uplink PUCCH of all the serving cells in the MeNB is transmitted only on the carrier corresponding to the MPcell, and the terminal only detects on the MPcell. System information and paging messages of the MeNB.
  • a plurality of serving cells may be configured under the SeNB, one of which is a primary serving cell of the SeNB, and is called an SPcell.
  • the uplink PUCCH of all serving cells in the SeNB is transmitted only on the carrier corresponding to the SPcell, and the terminal only detects on the SPcell.
  • Uplink random access response information Msg2 corresponding to different TAG cells (carriers) in the SeNB.
  • the uplink PUCCH of the serving cell under the SeNB may not be restricted from being transmitted on the MPcell carrier.
  • the system mainly includes a base station 10 and a terminal 12.
  • the base station 10 configures information about the detected control channel for the terminal, and the terminal 12 detects the control channel according to the configuration of the base station 10.
  • the base station 10 is configured to group the serving cells detected by the terminal according to the serving cell type and/or the subframe type, and configure the detection control channel information of the terminal detection control channel for each packet, where at least two groups are configured.
  • Corresponding detection control channel information is different, wherein the detection control channel information may be at least one of: detecting a candidate position of the control channel; detecting a number of candidate positions of the control channel; detecting a type of the control channel; detecting The number of times the control channel.
  • the terminal 12 is configured to group the serving cell detected by the terminal according to the serving cell and/or the subframe type; respectively determine, for each packet, the detection control channel information of the detection control channel; and then determine according to the determined for each packet The control channel information is detected, and the control channel of the serving cell in each packet is detected.
  • the following describes the method for configuring the control channel detected by the terminal and detecting the terminal side control channel by the base station side.
  • FIG. 2 is a flowchart of a method for configuring a control channel according to an embodiment of the present invention. As shown in FIG. 2, the method mainly includes the following steps:
  • Step S202 The base station groups the serving cells detected by the terminal according to the serving cell type and/or the subframe type.
  • Step S203 the base station separately configures, for each packet, detection control channel information required by the terminal to detect the control channel, where the detection control channel information corresponding to the at least two packets is different, and the detection control channel information may be at least one of the following Detecting a candidate location of the control channel; detecting a number of candidate locations of the control channel; detecting a type of the control channel; detecting a number of times of the control channel
  • grouping the serving cell detected by the terminal includes: grouping the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1;
  • the base station may configure the detection control channel information of the terminal to the corresponding group of the base station by using independent predefined signaling or high layer signaling.
  • the serving cell may be divided into two groups, one group is a serving cell of a primary serving base station MeNB, and another group is a serving cell of a non-primary serving base station SeNB, where the MeNB and the SeNB are respectively independently predefined or
  • the high layer signaling configuration terminal detects the detection control channel information of the control channel of the group.
  • control channel may be a control channel of a common search space.
  • the SeNB groups the different subframes, and the subframes in which the common search space exists on the SPCell are divided into one group, and the other subframes are divided into one group.
  • the base station limits the maximum number of serving cells configured to the terminal to 4. Thereby, the number of blind detections of the terminal can be further reduced.
  • the base station may further limit that the serving cell corresponding to the highest cell index has a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections. Thereby, the number of blind detections of the terminal can be further reduced.
  • the base station may pre-define a terminal to detect a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and not detect a terminal-specific search space of all the serving cells configured by the non-primary base station. Or terminal-specific control information.
  • the base station may pre-define a subframe in which the terminal detects random access response information in a common search space of a serving cell configured by the non-primary base station, and the terminal does not detect the configuration of the non-primary base station.
  • Terminal-specific search space or terminal-specific control information for all serving cells may be pre-define.
  • multiple serving cells configured under the non-primary base station are located in the same time advance group (TAG).
  • TAG time advance group
  • the base station may pre-define a terminal to detect a subframe in a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect the common search space control information configured by the non-primary base station. All or part of the control information of all serving cells in the associated TAG.
  • the base station may pre-define the terminal in the subframe in step S204.
  • the downlink control information of all the serving cells configured by the non-primary base station and the downlink control information format DCI Format corresponding to the uplink control information are not detected.
  • the base station when the non-primary base station is not in the random access procedure or the uplink keeps synchronization, and the non-primary base station adopts a self-scheduling manner corresponding to all the serving cells in the TAG, the base station is configured for each packet.
  • the base station may pre-define the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information. .
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, where the serving cell is scheduled.
  • a carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure or the scheduling carrier and the scheduled carrier are located in the same TAG, and the base station is separately configured for each packet.
  • the base station may pre-define the terminal not to detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the scheduling carrier is located in another In a TAG in a TAG that does not have a random access procedure or in a TAG that does not need to perform a random access procedure or in which the uplink is synchronized, the base station separately configures the number of control channel candidate locations detected by the terminal for each packet and/or When the type of the control channel detected by the terminal is detected, in step S204, the base station may pre-define the DCI Format corresponding to the uplink control information of the corresponding serving cell.
  • the base station pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and when the terminal detects the common search space related information in the common search space, the terminal only detects the DCI Format1A or the DCI Format 1C. . Preferably, only DCI Format 1A is detected.
  • the common search space related information includes at least one of the following information: random access response related information Msg2, system message information SI, and paging message information Paging.
  • the common search space related information includes: random access response information.
  • FIG. 3 is a flowchart of a method for detecting a control channel according to an embodiment of the present invention. As shown in FIG. 3, the method mainly includes the following steps:
  • Step S302 The terminal groups the serving cell detected by the terminal according to the serving cell and/or the subframe type.
  • Step S304 the terminal determines, for each packet, detection control channel information required for detecting a control channel, where the detection control channel information corresponding to the at least two packets is different, and the detection control channel information may include at least one of the following Detecting a candidate location of the control channel; detecting a number of candidate locations of the control channel; detecting a type of the control channel; detecting a number of times of the control channel;
  • the terminal may determine related information of the detected control channel according to the configuration and predefined of the base station.
  • Step S306 the terminal detects a control channel of the serving cell in each packet according to the detection control channel information determined for each packet.
  • the terminal may group the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1; in this case
  • the terminal may configure the detection control channel information of the terminal detection control channel in each packet by independently pre-defining or receiving high-level signaling.
  • the grouping, by the terminal, the serving cells of the N the base stations into the S groups may include: the terminal grouping the serving cells corresponding to the primary serving base station MeNB into a group, and the service corresponding to the non-primary serving base station SeNB The cells are grouped together.
  • control channel is a control channel of a common search space.
  • the terminal groups the serving cell detected by the terminal according to the serving cell and/or the subframe type, including: the terminal groups different subframes of the SeNB, and divides the subframe in which the common search space exists on the SPCell. One group and other sub-frames are divided into one group.
  • the terminal may further limit the configured maximum number of serving cells to 4. Thereby, the number of blind detections of the terminal can be further reduced.
  • the terminal may further limit that the serving cell corresponding to the lowest cell index has a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the terminal may further pre-define a terminal that detects a common search space of the primary serving cell in the non-primary base station, and the terminal does not detect the terminal dedicated to all the serving cells configured by the non-primary base station. Search space or terminal-specific control information.
  • the terminal may further define, by the terminal, a subframe that detects random access response information in a common search space of the serving cell configured by the non-primary base station, where the terminal does not detect the non-primary base station configuration. Terminal-specific search space or terminal-specific control information for all serving cells.
  • multiple serving cells configured under the non-primary base station are located in the same time advance group TAG.
  • the terminal may further pre-define a subframe in which the terminal detects a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect the common search space control configured by the non-primary base station. All or part of the control information of all serving cells in the information-related TAG.
  • the terminal may further define the terminal in step S304.
  • the downlink control information of all the serving cells configured by the non-primary base station and the DCI Format corresponding to the uplink control information are not detected on the subframe.
  • the non-primary base station when the non-primary base station is not in the random access procedure or the uplink keeps the synchronization, the non-primary base station adopts a self-scheduling manner in all the serving cells in the TAG, in step S304,
  • the terminal may further define that the terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information.
  • the non-primary base station when the non-primary base station is not in the random access procedure or the uplink keeps synchronization, the non-primary base station is configured to use the cross-carrier scheduling manner corresponding to the serving cell in the TAG, where the serving cell is Scheduling a carrier, and scheduling a scheduling carrier of the serving cell is located in another TAG that is performing a random access procedure, or the scheduling carrier and the scheduled carrier are located in the same TAG, and in step S304, the terminal further The terminal may not be configured to detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the scheduling carrier is located in another In a TAG in a TAG that does not have a random access procedure or in a TAG that does not need to perform a random access procedure or in which the uplink is synchronized, in step S304, the terminal may further define that the terminal does not detect the uplink of the corresponding serving cell.
  • the DCI Format corresponding to the control information is not in the random access procedure or the uplink keeps synchronization.
  • the terminal pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and when the terminal detects the common search space related information in the common search space, only the DCI Format1A or DCI Format is detected. 1C. Preferably, only DCI Format 1A is detected.
  • the common search space related information includes at least one of the following information: random access response related information Msg2, system message information SI, and paging message information Paging.
  • the common search space related information includes: random access response information (Msg2 and/or Msg 4).
  • a control channel configuration apparatus is further provided.
  • the apparatus may include: a grouping module 42 configured to detect a terminal according to a serving cell type and/or a subframe type.
  • the cell is configured to be configured.
  • the configuration module 44 is configured to separately configure, for each packet, detection control channel information of the terminal detection control channel, where the detection control channel information corresponding to the at least two packets is different, and the detection control channel information may include At least one of: detecting a candidate location of the control channel; detecting a number of candidate locations of the control channel; detecting a type of the control channel; detecting a number of times of the control channel.
  • the grouping module is configured to group the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1; And configured to configure, by independent predefined signaling or higher layer signaling, detection control channel information of the detection control channel of the terminal corresponding group of the base station.
  • the grouping module is configured to group different subframes of the non-primary serving base station SeNB, and the subframes in which the common search space exists on the SPCell are divided into one group, and the other subframes are divided into one group.
  • the apparatus may further include: a control module, configured to limit the maximum number of serving cells configured to the terminal to 4.
  • control module is further configured to limit the serving cell corresponding to the highest cell index to have a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the configuration module is further configured to: configure, by using a predefined configuration, at least one of: a predefined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and does not detect the configuration of the non-primary base station.
  • the predefined terminal detects a subframe of random access response information in a common search space of a serving cell configured by the non-primary base station, and the terminal does not detect the non-primary base station configuration a terminal-specific search space or terminal-specific control information of all serving cells; the predefined terminal detects a subframe in a common search space of the non-primary base station corresponding to the primary serving cell, and the terminal does not detect the common search space configured by the non-primary base station Control all or part of the control information of all serving cells in the TAG associated with the information.
  • the configuration module is further configured to: configure, by a predefined configuration, at least one of the following information: when the non-primary base station corresponds to the primary serving cell, a random access procedure occurs, or when the common search space information related TAG is the primary serving cell In the TAG, the predefined terminal does not detect the downlink control information of all serving cells configured by the non-primary base station and the downlink control information format DCI Format corresponding to the uplink control information in the subframe; when the non-primary base station corresponds to the primary serving cell
  • the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI corresponding to the uplink control information.
  • the non-primary base station uses the cross-carrier scheduling mode corresponding to the serving cell in the TAG, and the serving cell is the scheduled carrier. And scheduling the scheduling carrier of the serving cell to be located at another random connection In the TAG of the ingress process, the scheduling carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information; when the non-primary base station corresponds to the master When the serving cell is not in the random access process or the uplink is kept in synchronization, when the non-primary base station corresponds to the serving cell in the TAG, the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure.
  • the pre-defined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell in the TAG in the TAG or the uplink synchronization that does not need to perform the random access procedure; the predefined terminal detects the primary serving cell corresponding to the non-primary base station.
  • the subframe of the common search space when the terminal detects the common search space related information in the common search space, only the DCI Format1A or DCI Format 1C is detected.
  • the configuration of the control channel may be located in the base station shown in FIG. 1 , and the control channel detected by the terminal is configured in the manner described in the foregoing method for configuring the control channel, and details are not described herein.
  • a control device for detecting a control channel is further provided.
  • the device may include: a grouping module 52, configured to perform, on a serving cell detected by the terminal according to a serving cell and/or a subframe type.
  • a determining unit 54 configured to determine, for each packet, detection control channel information required for the control channel, the detection control channel information comprising at least one of: detecting a candidate location of the control channel; detecting the a number of candidate locations of the control channel; detecting the type of the control channel; detecting the number of times of the control channel; wherein, the detection control channel information corresponding to the at least two packets is different; the detecting module 56 is configured to be configured according to the determining module The detection control channel information determined by each packet detects a control channel of a serving cell in each packet.
  • the grouping module 52 is configured to group the serving cells of the N base stations into S groups, where N and S are integers greater than 0, and 0 ⁇ S ⁇ N+1; the determining module It is further arranged to configure the detection control channel information of the terminal detection control channel in each packet by independently pre-defining or receiving higher layer signaling.
  • the grouping module 52 is further configured to group different subframes of the non-primary serving base station SeNB, divide the subframes in which the common search space exists on the SPCell into one group, and divide the other subframes into one group.
  • the apparatus may further include: a control module, configured to limit the maximum number of serving cells configured for the terminal to 4.
  • control module may be configured to limit the serving cell corresponding to the lowest cell index to have a smaller number of control channel detections, and ensure that the total number of detections of all cells does not exceed a predefined maximum number of detections.
  • the configuration module 54 is further configured to: configure, by using a predefined manner, information of at least one of the following: the predefined terminal detects a subframe in a common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect the a terminal-specific search space or terminal-specific control information of all serving cells configured by the non-primary base station; the predefined terminal detects a subframe of random access response information in a common search space of the serving cell configured by the non-primary base station, and the terminal does not detect the a terminal-specific search space or terminal-specific control information of all serving cells configured by the non-primary base station; the predefined terminal detects a subframe of the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect the configuration of the non-primary base station
  • the common search space controls all or part of the control information of all serving cells in the TAG associated with the information.
  • the configuration module 54 is further configured to: configure at least one of the following information in a predefined manner: when the non-primary base station corresponds to the primary serving cell, a random access procedure occurs, or when the common search space information is related to the TAG as a primary service
  • the predefined terminal does not detect the downlink control information of all serving cells configured by the non-primary base station and the DCI Format corresponding to the uplink control information in the subframe; when the non-primary base station corresponds to the primary serving cell is not in random
  • the access process or the uplink is synchronized, and the non-primary base station adopts a self-scheduling manner for all the serving cells in the TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information;
  • the non-primary base station is not in the random access procedure or the uplink is kept in synchronization.
  • the serving cell is the scheduled carrier, and the scheduling is performed.
  • the scheduling carrier of the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduled carrier and the scheduled carrier are located in the same TAG, and the predefined terminal does not detect the downlink control information of the corresponding serving cell and the DCI Format corresponding to the uplink control information; when the non-primary base station corresponds to the primary serving cell is not in random
  • the access process or the uplink keeps synchronization, when the non-primary base station corresponds to the serving cell in the TAG adopts a cross-carrier scheduling mode, and the scheduling carrier is located in another TAG that does not have a random access procedure or does not need to perform random In the TAG of the access procedure or in the TAG in which the uplink is synchronized, the predefined terminal does not detect the DCI Format corresponding to the uplink control information of the corresponding serving cell; the predefined terminal detects the sub-standard base station corresponding to the primary
  • the detection device of the control channel may be located in the terminal shown in FIG. 1 and the control channel detected by the terminal is detected in the manner described in the foregoing method for detecting the control channel, and details are not described herein.
  • the communication system of this embodiment there are two dual-link eNBs, MeNB and SeNB, and a dual-link UE.
  • the eNB and the UE adopt a predefined manner as shown in Table 4 and Table 5 below.
  • Table 4 and Table 5 A definition of the number of common search space detections by different eNBs.
  • the UE defines the common search space detection times of the MeNB and the SeNB in one of the following predefined manners after establishing the dual link.
  • the value of X is 1 if the UE pre-defined terminal detects DCI Format 1A and DCI Format 1C on the SPcell, then the value of X is 2.
  • the terminal may adopt the above several predefined manners (Table 6 to Table 15). The details will not be described again.
  • the eNB limits the number of detections by using the number of reserved cells (carriers) that are predefined to be the maximum supported.
  • the preferred pre-defined, MeNB and SeNB are configured as the maximum number of serving cells of the UE is 4.
  • the UE limits the number of detections by using a predefined maximum supported number of serving cells (carriers).
  • the preferred pre-defined, the UE pre-defined MeNB and the SeNB are configured to the UE maximum serving cell.
  • the number is 4.
  • the terminal does not detect the control channel of the highest serving cell index according to the serving cell index, from low to high.
  • the eNB adopts a preset number of detections of the UE-specific search space that limits the maximum Cell Index. Ensure that the number of times the UE detects the control channel does not exceed a predefined number of times.
  • the number of blind detections of the UE-specific search space of the highest Cell Index is reduced.
  • the MeNB configures the number of serving cells of the UE to be 2, and the number of serving cells configured by the SeNB is 3.
  • the MeNB supports 32 times or 48 (UEs supporting UL-MIMO) secondary terminal-specific detection, and supports 12 public search spaces.
  • SeNB supports 32 times or 48 times of terminal-specific detection, supports 6 or 12 times of common search space detection
  • the base station may be configured to pre-define a terminal-specific search space that limits the terminal serving cell index.
  • the rules for dividing the maximum serving cell detection space number in this embodiment are as shown in Table 17.
  • the schemes shown in Table 18 to Table 28 can be adopted.
  • the UE adopts a preset number of detection times of the UE-specific search space that limits the highest Cell Index. To ensure that the number of times the UE detects the control channel does not exceed a predefined number of times.
  • the UE reduces the number of blind detections of the UE-specific search space of the highest Cell Index when the total number of detection times of the serving cell common search space and the dedicated search space configured by the MeNB and the SeNB exceeds the maximum supported detection times of the terminal.
  • the number of serving cells of the UE configured by the MeNB is 2, and the number of serving cells configured by the SeNB is 3, and the UE supports 32 times or 48 (UEs supporting UL-MIMO) secondary terminal-specific detection on the MeNB, and supports 12 public times.
  • the UE supports 32 or 48 terminal-specific detections on the SeNB, and supports 6 or 12 common search space detections.
  • the terminal may be selected to pre-define a terminal-specific search space that limits the terminal serving cell index.
  • the rules for dividing the maximum serving cell detection space number in this embodiment are as shown in Table 17.
  • the schemes shown in Table 18 to Table 28 can be adopted.
  • N0>0, N1>0, N2>0, N3>0, and the value of X is 1 or 2. If the UE pre-defined UE only detects DCI Format 1A on the SPcell, the value of X is 1 if the UE The predefined terminal detects DCI Format 1A and DCI Format 1C on the SPcell, then the value of X is 2. The condition is satisfied: 2*(N0+N1+N2+N3) ⁇ 32-6*X.
  • the terminal performs control channel detection according to the schemes shown in Tables 18 to 28 above.
  • the base station pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect terminal-specific search space control information of all the serving cells configured by the non-primary base station.
  • the MeNB is configured with N0 serving cells
  • the base station pre-defined terminal detects the subframe of the SeNBSPcell common search space, and does not detect the terminal-specific search space control information of the N1 serving cells configured by the SeNB.
  • each serving cell of the SeNB does not send the terminal-specific control information in a subframe in which the corresponding terminal detects the SeNB SPcell common search space.
  • the terminal pre-defined terminal detects a subframe of a common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect terminal-specific search space control information of all serving cells configured by the non-primary base station.
  • the terminal has two dual-link eNBs, MeNB and SeNB.
  • the MeNB configures the terminal with N0 serving cells
  • the terminal pre-defined terminal detects the subframe of the SeNB SPcell common search space control information, and does not detect the terminal-specific search space control information of the N1 serving cells configured by the SeNB.
  • the terminal does not detect all the serving cell terminal proprietary control information of the terminal in the SeNB in the subframe in which the SeNB SPcell common search space control information is detected.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the terminal-specific control information includes at least one of the following control information: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal detects the subframe of the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect all the services configured by the non-primary base station. Terminal-specific search space control information for the cell.
  • the MeNB is configured with N0 serving cells
  • the base station pre-defined terminal detects the subframe of the SeNBSPcell common search space, and does not detect the terminal-specific search space control information of the N1 serving cells configured by the SeNB.
  • each serving cell of the SeNB does not send the terminal-specific control information in a subframe in which the corresponding terminal detects the SeNB SPcell common search space.
  • the terminal pre-defined terminal detects the subframe of the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect all the services configured by the non-primary base station. Terminal-specific search space control information for the cell.
  • the terminal has two dual-link eNBs, MeNB and SeNB.
  • the MeNB configures the terminal with N0 serving cells
  • the terminal pre-defined terminal detects the subframe of the SeNB SPcell common search space control information, and does not detect the terminal-specific search space control information of the N1 serving cells configured by the SeNB.
  • the terminal does not detect all the serving cell terminal proprietary control information of the terminal in the SeNB in the subframe in which the SeNB SPcell common search space control information is detected.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the terminal-specific control information includes at least one of the following control information: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal detects the subframe of the common search space corresponding to the primary serving cell of the non-primary base station, and the terminal does not detect the configuration of the non-primary base station.
  • the common search space control information related to the TAG means that the public common search space control information is used to indicate all the serving cell control information in the TAG.
  • the MeNB is configured with N0 serving cells
  • the SeNB is configured with N1 serving cells.
  • the base station pre-defined terminal detects the subframe of the common search space of the SeNB SPcell, if the common search space control information is related to TAG0, the terminal does not detect all or part of the terminal-specific control information of all the serving cells in the SeNB TAG0.
  • each serving cell in the SeNB TAG0 does not send the dedicated search space control information of the terminal in a subframe in which the corresponding terminal detects the common search space control information related to the TAG0 on the SeNB SPcell.
  • the terminal pre-defined terminal detects the subframe of the common search space of the primary serving cell corresponding to the non-primary base station, and the terminal does not detect the configuration of the non-primary base station.
  • the common search space control information related to the TAG means that the public common search space control information is used to indicate all the serving cell control information in the TAG.
  • the MeNB is configured with N0 serving cells
  • the SeNB is configured with N1 serving cells.
  • the base station pre-defined terminal detects the subframe of the common search space of the SeNB SPcell, if the common search space control information is related to TAG0, the terminal does not detect all or part of the terminal-specific control information of all the serving cells in the SeNB TAG0.
  • each serving cell in the SeNB TAG0 does not send the dedicated search space control information of the terminal in a subframe in which the corresponding terminal detects the common search space control information related to the TAG0 on the SeNB SPcell.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the terminal-specific control information includes at least one of the following control information: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal when the non-primary base station generates a random access procedure corresponding to the primary serving cell, the base station pre-defined terminal does not detect the non-primary base station when detecting the subframe of the common search space of the primary serving cell corresponding to the non-primary base station. All terminal-specific control information of the serving cell.
  • the MeNB is configured with N0 serving cells
  • the SeNB is configured with N1 serving cells.
  • Nell0 primary serving cell
  • Cell1 non-primary serving cell
  • Cell3 is located at TAG1.
  • the terminal detects the Msg2 (RA-RNTI) of the SPcell or the SPcell TAG in the corresponding subframe;
  • the terminal detects the Msg4 information of the SPcell or the SPcell TAG in the corresponding subframe.
  • the predefined terminal does not detect all or part of terminal specific control information of all serving cells in the SeNB.
  • the terminal-specific control information includes at least one of the following control information: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal does not detect all terminal-specific control information.
  • the terminal When the non-primary base station generates a random access procedure corresponding to the primary serving cell, the terminal pre-defines all the serving cells of the non-primary base station when detecting the subframe of the common search space of the primary serving cell corresponding to the non-primary base station. Terminal proprietary control information.
  • the MeNB configures the N0 serving cells for the terminal
  • the SeNB configures the N1 serving cells for the terminal.
  • the terminal detects the Msg2 (RA-RNTI) of the SPcell or the SPcell TAG in the corresponding subframe;
  • the terminal detects the Msg4 information of the SPcell or the SPcell TAG in the corresponding subframe.
  • the terminal pre-defined does not detect all or part of the terminal-specific control information of all serving cells in the SeNB.
  • the terminal-specific control information includes at least one of the following control information: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the terminal pre-defined does not detect all terminal-specific control information.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG are in a self-scheduling manner, the base station pre-defined terminal does not detect downlink control information of the serving cell corresponding to the TAG and all DCI formats corresponding to the uplink control information, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4 .
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG are in a self-scheduling manner, the terminal pre-defined terminal does not detect downlink control information of the serving cell of the corresponding TAG and all DCI formats corresponding to the uplink control information, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG adopt a self-scheduling manner, the base station pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the serving cell corresponding to the TAG, where the DCI is The format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG are in a self-scheduling manner, the terminal pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the serving cell of the TAG, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG are in a self-scheduling manner, the base station pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the serving cell of the corresponding TAG, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and only detect DCI Format 1A of downlink control information.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station, When all the serving cells in the TAG are in a self-scheduling manner, the terminal pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the serving cell of the TAG, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and only detect DCI Format 1A of downlink control information.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect downlink control information of the corresponding serving cell and all DCI formats corresponding to the uplink control information, where the DCI format includes at least one of the following: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the terminal pre-defined terminal does not detect downlink control information of the corresponding serving cell and all DCI formats corresponding to the uplink control information, where the DCI format includes at least the following One: DCI Format 0, DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, DCI Format 2D, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the non-primary base station corresponds to the common search space control information of the TAG on the primary serving cell of the non-primary base station
  • the cross-carrier scheduling mode is adopted, where the serving cell is The scheduled carrier is scheduled, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure or the scheduled carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect the corresponding serving cell.
  • All DCI formats corresponding to the uplink control information the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure. If the scheduling carrier and the scheduled carrier are located in the same TAG, the terminal pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the non-primary base station corresponds to the common search space control information of the TAG on the primary serving cell of the non-primary base station
  • the cross-carrier scheduling mode is adopted, where the serving cell is The scheduled carrier is scheduled, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure or the scheduled carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect the corresponding serving cell.
  • All DCI formats corresponding to the uplink control information the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and only detects the DCI Format 1A of the downlink control information.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the terminal pre-defined terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and only detect DCI Format 1A of downlink control information.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, only detects DCI Format 1A of downlink control information.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, only detects DCI Format 1A of downlink control information.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, which do not detect downlink control information, DCI Format 2D.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the serving cell is a scheduled carrier, and the scheduling carrier that schedules the serving cell is located in another TAG that is performing a random access procedure.
  • the scheduling carrier and the scheduled carrier are located in the same TAG, and the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and DCI Format 1A, DCI Format 1, DCI Format 1B, DCI Format 1D, DCI Format 2, DCI Format 2A, DCI Format 2B, DCI Format 2C, which do not detect downlink control information, DCI Format 2D.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure or does not need to perform a random access procedure in the TAG or uplink.
  • the terminal does not detect all DCI formats corresponding to the uplink control information of the corresponding serving cell, and the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, and DCI Format 4.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the non-primary base station corresponds to the serving cell in the TAG, the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure or does not need to perform a random access procedure in the TAG or uplink.
  • the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4.
  • the base station pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the non-primary base station corresponds to the serving cell in the TAG, the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure or does not need to perform a random access procedure in the TAG or uplink.
  • the terminal does not detect the uplink control of the corresponding serving cell. All DCI formats corresponding to the information, the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, DCI Format 1A for detecting only downlink control information.
  • the terminal pre-defined terminal detects the subframe of the common search space control information about the TAG on the primary serving cell of the non-primary base station,
  • the non-primary base station corresponds to the serving cell in the TAG, the cross-carrier scheduling mode is adopted, and the scheduling carrier is located in another TAG that does not have a random access procedure or does not need to perform a random access procedure in the TAG or uplink.
  • the DCI format includes at least one of the following: DCI Format 0, DCI Format 3, DCI Format 3A, DCI Format 4, and only detects DCI Format 1A of downlink control information.
  • the common search space related information includes at least one of the following information: random access response related information (Msg2), system message information (SI), and paging message information (Paging).
  • Msg2 random access response related information
  • SI system message information
  • Paging paging message information
  • the common search space related information is random access response related information.
  • the base station pre-defined terminal detects only the DCI Format 1A or the DCI Format 1C when detecting the common search space control information of the non-primary base station, and preferably only detects the DCI Format 1A.
  • the terminal When detecting the common search space control information of the non-primary base station, the terminal detects only the DCI Format 1A or the DCI Format 1C, and preferably only detects the DCI Format 1A.
  • the common search space control information is random access response information (Msg2 or RAR).
  • 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 above-mentioned embodiments and the preferred embodiments can ensure that the maximum number of times that the terminal detects the control channel does not exceed the predefined number of detections of the terminal without affecting the average throughput of the terminal and the real-time service scheduling.

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

L'invention concerne un procédé, un dispositif et un système de configuration et de détection de canal de commande. Le procédé de configuration de canal de commande comprend : selon les types de cellules de desserte et/ou les types de sous-trames, le groupement, par une station de base, des cellules de desserte qui sont détectées par un terminal ; et la configuration respective, pour chaque groupe, par la station de base, d'informations de détection de canal de commande qui sont nécessaires lorsque le terminal détecte un canal de commande, les informations de détection de canal de commande qui correspondent à au moins deux groupes étant différentes, et les informations de détection de canal de commande comprenant au moins l'un des éléments suivants : une position candidate de détection de canal de commande, le nombre de positions candidates de détection de canal de commande, les types de détection de canal de commande, et le nombre d'occurrences de détection de canal de commande.
PCT/CN2014/087357 2014-03-20 2014-09-24 Procédé, dispositif et système de configuration et de détection de canal de commande WO2015139439A1 (fr)

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CN106899983A (zh) * 2017-03-03 2017-06-27 北京佰才邦技术有限公司 调度信息获取方法、终端和基带芯片
CN109089316B (zh) * 2017-06-14 2020-11-17 华为技术有限公司 调度方法及相关装置
CN111769930B (zh) * 2018-02-13 2022-10-18 Oppo广东移动通信有限公司 用于物理下行控制信道的盲检测的方法和终端设备
CN110324883B (zh) 2018-03-28 2021-04-27 维沃移动通信有限公司 配置物理下行控制信道的方法、用户设备和网络侧设备
CN110351010B (zh) 2018-04-03 2021-04-30 电信科学技术研究院有限公司 一种信道盲检方法、信号传输方法和相关设备
WO2019192304A1 (fr) * 2018-04-03 2019-10-10 电信科学技术研究院有限公司 Procédé de détection de canal aveugle, procédé de transmission de signal et dispositif associé
CN110351004B (zh) * 2018-04-04 2021-02-09 华为技术有限公司 通信方法和通信设备
CN110545583B (zh) * 2018-05-29 2022-01-25 展讯通信（上海）有限公司 Dci检测次数的指示及接收方法、基站、终端、可读介质
CN111083791B (zh) * 2018-10-22 2021-10-01 华为技术有限公司 数据传输方法及装置
CN113873671A (zh) * 2020-06-30 2021-12-31 大唐移动通信设备有限公司 一种随机接入的方法及装置

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