WO2012149848A1 - Procédé, système et dispositif de transmission de données - Google Patents

Procédé, système et dispositif de transmission de données Download PDF

Info

Publication number
WO2012149848A1
WO2012149848A1 PCT/CN2012/073432 CN2012073432W WO2012149848A1 WO 2012149848 A1 WO2012149848 A1 WO 2012149848A1 CN 2012073432 W CN2012073432 W CN 2012073432W WO 2012149848 A1 WO2012149848 A1 WO 2012149848A1
Authority
WO
WIPO (PCT)
Prior art keywords
pdcch
enhanced
user equipment
scheduling
transmission
Prior art date
Application number
PCT/CN2012/073432
Other languages
English (en)
Chinese (zh)
Inventor
赵锐
潘学明
沈祖康
肖国军
Original Assignee
电信科学技术研究院
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Publication of WO2012149848A1 publication Critical patent/WO2012149848A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management

Definitions

  • the present invention relates to the field of wireless communication technologies, and in particular, to a method, system, and device for data transmission.
  • a PDCCH Physical Downlink Control Channel
  • PDSCH Physical Downlink Shared Channel
  • Shared channel forms a multiplexing relationship of TDM (Time Division Multiple).
  • the control region for transmitting the PDCCH in the LTE system is composed of a logically divided CCE (Control Channel Element), and the mapping of the CCE to the RE (Resource Element) uses a completely interleaved manner.
  • the transmission of DCI is also based on CCE.
  • One DCI for one UE can be transmitted in N consecutive CCEs. The value is 1, 2, 4, and 8 and is called the CCE aggregation level.
  • the UE performs a PDCCH blind check in the control area to search whether there is a PDCCH for the PDCCH, and the blind detection uses the RNTI (Radio Network Temporary Identifier) of the UE to decode different DCI formats and CCE aggregation levels. If the decoding is correct, the DCI for the UE is received.
  • the LTE UE needs to perform blind detection on the control region for each downlink subframe in the non-DRX (Discontinuous Reception) state to search for the PDCCH.
  • RNTI Radio Network Temporary Identifier
  • the control area in one subframe in the LTE system is composed of two spaces, namely, a Common Search Space (CSS) and a UE-specific Search Space (UES).
  • the common search space is mainly used for transmitting DCI of scheduling cell-specific control information (such as system information, paging message, multicast power control information, etc.), and the user-specific search space is mainly used for transmitting DCI scheduled for each UE resource.
  • the common search space in each downlink subframe includes the first 16 CCEs, and the CCE aggregation level in the common search space only supports 4, 8; the starting CCE location of each user-specific UE search space in each downlink subframe Related to the subframe number, the RNTI of the UE, etc., the CCE aggregation level 1, 2, 4, 8 is supported in the user-specific search space.
  • the blind detection of each aggregation level corresponds to one search space, that is, the UE blind detection different aggregation levels are performed in different search spaces.
  • Table 1 A CCE space in which a UE needs to be blindly checked in a downlink subframe is given, where L represents the size of the aggregation level, Size represents the number of CCEs that need to be blindly checked for each aggregation level, and M (L) indicates the corresponding The number of blind test attempts for each aggregation level.
  • Table 1 CCE space for a UE to be blindly checked in a downlink subframe According to Table 1, a UE needs to perform 22 PDCCH channel resources in one downlink subframe, where a total of 6 PDCCH channels are used in the common search space. Resources, the user-specific search space has a total of 16 PDCCH channel resources.
  • UL-MIMO uplink multiple input and multiple output
  • the PDCCH and PDSCH resource structure diagram of the Relay system is shown in Figure 1.
  • the R-PDCCH of the Relay system is used by the base station to transmit control signaling to the Relay, and the R-PDSCH is used by the Relay to transmit data to the UE.
  • the above scheme can also be introduced into the non-relay system.
  • the base station may separate a part of the resources in the PDSCH for transmitting control signaling to the UE, which is called "enhanced PDCCH region".
  • the R-PDCCH does not include a common search space. Only the Relay-specific R-PDCCH search space, its DL grant (downlink scheduling) and UL grant (uplink scheduling) are transmitted separately.
  • Uplink support UL MIMO: 32+32 64;
  • the enhanced PDCCH cannot follow the configuration mode in the R-PDCCH, so that the transmission cannot be performed on the enhanced PDCCH.
  • a method, system, and device for data transmission are provided by an embodiment of the present invention for performing data transmission by enhancing a PDCCH.
  • the network side configures the transmission information of the enhanced physical downlink control channel PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than that of the user equipment.
  • the number of blind detections of the PDCCH in the PDCCH search space is not greater than that of the user equipment.
  • the network side performs data transmission through the configured PDCCH.
  • the user equipment performs blind detection on the enhanced PDCCH according to the configured transmission information of the enhanced physical downlink control channel PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the dedicated PDCCH search of the user equipment.
  • the number of blind detections of PDCCH in space is not greater than the dedicated PDCCH search of the user equipment.
  • the user equipment receives data on the enhanced PDCCH by blind detection.
  • a configuration module configured to configure, for the transmission information of the enhanced physical downlink control channel PDCCH, and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the PDCCH in the PDCCH search space of the user equipment Number of blind inspections;
  • the transmission module is configured to perform data transmission by using the configured PDCCH.
  • a blind detection module configured to perform blind detection on the enhanced PDCCH according to the configured transmission information of the enhanced physical downlink control channel PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the user The number of blind detections of the PDCCH in the device-specific PDCCH search space;
  • a receiving module configured to receive data on the enhanced PDCCH by using a blind detection.
  • the network side device is configured to configure the transmission information of the enhanced physical downlink control channel PDCCH and/or the channel resource of the candidate PDCCH, and perform data transmission by using the configured PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not
  • the number of blind detections of the PDCCH in the PDCCH search space of the user equipment is greater than that of the user equipment, and the user equipment is configured to perform the blind detection of the enhanced PDCCH by using the enhanced PDCCH transmission information and/or the channel resource of the candidate PDCCH.
  • FIG. 1 is a schematic diagram of a resource structure diagram of a background art
  • FIG. 2 is a schematic structural diagram of a system for data transmission according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a device for data transmission according to a first embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a second data transmission device according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a first method for data transmission according to an embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a second method for data transmission according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a resource structure diagram according to an embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE INVENTION The inventors have found that in the design process of Relay, since the DL grant and the UL grant are separated in time slots, the number of blind detections in one time slot is consistent with that of the UE in Rel-8/10, but In one subframe, the number of blind detections is more than the number of blind detections of the ordinary terminal. Considering that the complexity of Relay is higher than that of UE, this requires that the maximum number of blind detections be staggered in different time slots, which is acceptable for Relay. But for the UE it will add extra complexity.
  • DL grant: DCI format 1A and UL grant: DCI format 0 have the same information bit number, and the blind detection of these two DCI formats separately reduces the efficiency of UE blind detection.
  • the network side configures the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, and the user equipment performs blind detection on the enhanced PDCCH according to the configured enhanced PDCCH transmission information and/or the candidate PDCCH channel resource, where
  • the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of blind detections of the PDCCH in the user equipment-specific PDCCH search space.
  • the number of blind detections of the PDCCH in the PDCCH search space is not greater than the number of blind detections of the PDCCH in the PDCCH search space of the user equipment. Therefore, based on the enhanced PDCCH, the number of blind detections of the PDCCH can be further effectively reduced, and the user equipment is implemented.
  • the complexity is not greater than the number of blind detections of the PDCCH search space of the user equipment.
  • the system for data transmission in the embodiment of the present invention includes: a network side device 10 and a user equipment 20.
  • the network side device 10 is configured to configure the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, and perform data transmission by using the configured PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the user equipment.
  • the number of blind detections of the PDCCH in the dedicated PDCCH search space is not greater than the user equipment.
  • the user equipment 20 is configured to perform blind detection on the enhanced PDCCH according to the configured transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, and receive data on the enhanced PDCCH by using blind detection.
  • the network side device 10 configures the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, and includes three cases: 1. Configuring the transmission information of the enhanced PDCCH by using the solution of the embodiment of the present invention; The scheme of the embodiment of the invention configures the channel resource of the candidate PDCCH; 3. The method using the embodiment of the present invention The transmission information of the enhanced PDCCH and the channel resources of the candidate PDCCH are configured. The following is introduced separately. Manner 1: The transmission information of the enhanced PDCCH is configured by using the solution of the embodiment of the present invention.
  • the network side device 10 uses the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH (Physical Uplink Shared Channel) transmission in the enhanced first subframe of the PDCCH region.
  • the transmission is performed in the slot, and other DCI formats for scheduling the PUSCH are transmitted in the second slot of the subframe in the enhanced PDCCH region. See Figure 7 for details.
  • the user equipment 20 blindly checks the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first slot of the subframe in the enhanced PDCCH region, and the second subframe of the subframe in the enhanced PDCCH region.
  • the blind detection in the slot is used to schedule other DCI formats of the PUSCH.
  • the specific configuration (that is, the configuration of the transmission information of the enhanced PDCCH) may be specified in the protocol, or the user terminal 20 may be notified by the network side device 10.
  • the user terminal 20 receives the transmission information of the enhanced PDCCH notified by the network side before performing blind detection.
  • the number of PDCCH candidate channels is ⁇ 6, 6, 2, 2 ⁇ , and the number of blind detections of the user equipment 20 is:
  • the DL grant+UL grant (DCI format 0) region (that is, the first time slot in the enhanced PDCCH region, see FIG. 7 for details): blind detection DCI format 0, DCI format 1 A, and corresponding to the downlink transmission mode are respectively required.
  • the total number of blind detections of the user equipment 20 is:
  • the number of blind detections in the user equipment-specific PDCCH search space of mode 1 is consistent with the number of blind detections in the user equipment-specific PDCCH search space of LTE Rel-10.
  • the network side device 10 configures the number of PDCCH candidate channels for each aggregation level in the enhanced PDCCH, so that the sum of the number of configured PDCCH candidate channels is not greater than the sum of the number of PDCCH candidate channels in the user equipment-specific search space.
  • the user equipment 20 performs blind detection on each candidate PDCCH according to the number of PDCCH candidate channels of each aggregation level in the configured enhanced PDCCH.
  • the specific configuration (that is, the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH) may be specified in the protocol (ie, preset), or the network side device 10 may notify the user terminal. 20.
  • the user terminal 20 receives the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH notified by the network side before performing blind detection.
  • the number of PDCCH candidate channels corresponding to the aggregation level ⁇ 1 , 2, 4, 8 ⁇ is ⁇ 4, 4, 1. , 1 ⁇
  • the number of PDCCH candidate channels of 2, 4, 8 ⁇ is ⁇ 4, 4, 1, 1 ⁇
  • the number of blind detections of the user equipment 20 is:
  • the DL grant area (that is, the first time slot in the enhanced PDCCH region, see FIG. 1 for details):
  • the total number of blind detections of the user equipment 20 is:
  • Uplink support UL MIMO: 20+20 40;
  • the number of blind detections in the user equipment-specific PDCCH search space is smaller than the number of blind detections in the user equipment-specific PDCCH search space of the LTE Rel-10.
  • Manner 3 The channel information of the enhanced PDCCH and the channel resource of the candidate PDCCH are configured by using the solution of the embodiment of the present invention.
  • the network side device 10 transmits the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first time slot of the subframe in the enhanced PDCCH region, and will be used for scheduling the PUSCH.
  • the other DCI formats are transmitted in the second slot of the subframe in the enhanced PDCCH region, and the number of PDCCH candidate channels for each aggregation level in the enhanced PDCCH is determined.
  • the user equipment 20 blindly detects the DCI format and the scheduled PUSCH transmission for scheduling PDSCH transmission in the first time slot of the subframe in the enhanced PDCCH region according to the configured number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH region.
  • the DCI format blindly checks other DCI formats for scheduling the PUSCH in the second time slot of the subframe in the enhanced PDCCH region.
  • the specific configuration may be specified in the protocol, or the user terminal 20 may be notified by the network side device 10.
  • the specific configuration herein may be a configuration of enhanced transmission information of the PDCCH and/or configuration of a channel resource of the candidate PDCCH.
  • the user terminal 20 receives the transmission information of the enhanced PDCCH notified by the network side and/or the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH before performing blind detection.
  • the sum of the number of candidate PDCCH channels in the third mode is not necessarily smaller than the sum of the number of PDCCH candidate channels in the user-specific search space, as long as the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of users.
  • the number of blind detections of the PDCCH in the device-specific PDCCH search space may be sufficient.
  • the number of PDCCH candidate channels is configured for the DL grant+UL grant (DCI format 0) region and the UL grant region, for example, the number of PDCCH candidate channels corresponding to the aggregation level ⁇ 1, 2, 4, 8 ⁇ in the DL grant region.
  • the number of PDCCH candidate channels corresponding to the aggregation level ⁇ 1 , 2 , 4 , 8 ⁇ is ⁇ 3, 3 , 1, 1 ⁇ , then it is blind
  • the number of checks is:
  • the DL grant+UL grant (DCI format 0) region (that is, the first time slot in the enhanced PDCCH region, as shown in FIG. 2):
  • the blind detection DCI format 0, DCI format 1 A, and the downlink transmission mode are respectively required.
  • the total number of blind detections of the user equipment 20 is:
  • the number of blind detections in the user equipment-specific PDCCH search space of mode 3 is smaller than the number of blind detections in the user equipment-specific PDCCH search space of LTE Rel-10.
  • the embodiment of the present invention is not limited to the foregoing three manners, and the other manners that the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of blind detections of the PDCCH in the dedicated PDCCH search space of the user equipment are applicable to the present disclosure. Inventive embodiments.
  • the network side device in the embodiment of the present invention may be a station (such as a macro base station, a home base station, etc.), an RN (relay) device, or other network side devices.
  • a station such as a macro base station, a home base station, etc.
  • RN relay
  • the data transmission device and the data transmission method are also provided in the embodiment of the present invention. Since the principle of solving the problem is similar to the data transmission system, the implementation of the device and the method may be To refer to the implementation of the system, the repetition will not be repeated.
  • the device for data transmission ie, the network side device
  • the device for data transmission includes: a configuration module 100 and a transmission module 110.
  • the configuration module 100 is configured to configure the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of blind detections of the PDCCH in the user equipment exclusive PDCCH search space. .
  • the transmission module 110 is configured to perform data transmission by using the configured PDCCH.
  • the configuration module 100 transmits the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first slot of the subframe in the enhanced PDCCH region, and the other used for scheduling the PUSCH.
  • the DCI format is transmitted in the second slot of the subframe in the enhanced PDCCH region.
  • the configuration module 100 configures the number of PDCCH candidate channels for each aggregation level in the PDCCH, so that the sum of the configured number of PDCCH candidate channels is not greater than the sum of the number of PDCCH candidate channels in the user equipment-specific search space.
  • the configuration module 100 transmits the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first slot of the subframe in the enhanced PDCCH region, and the other used for scheduling the PUSCH.
  • the DCI format is transmitted in the second slot of the subframe in the enhanced PDCCH region; and the number of PDCCH candidate channels for each aggregation level in the enhanced PDCCH is determined.
  • the transmitting module 110 notifies the user equipment to enhance the number of PDCCH candidate channels of each aggregation level in the PDCCH before transmitting the data through the configured PDCCH.
  • the second data transmission device ie, user equipment in the embodiment of the present invention includes: a blind detection module 200 and a receiving module 210.
  • the blind detection module 200 is configured to perform blind detection on the enhanced PDCCH according to the configured transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the dedicated PDCCH of the user equipment. The number of blind checks of the PDCCH in the search space.
  • the receiving module 210 is configured to receive data on the enhanced PDCCH by using a blind detection.
  • the blind detection module 200 blindly detects the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first slot of the subframe in the enhanced PDCCH region, and the subframe in the enhanced PDCCH region The blind detection in the two slots is used to schedule other DCI formats of the PUSCH.
  • the blind detection module 200 performs blind detection on each candidate PDCCH according to the configured number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH.
  • the sum of the number of configured PDCCH candidate channels is not greater than the sum of the number of PDCCH candidate channels in the user equipment-specific search space.
  • the blind detection module 200 enhances the PDCCH candidate channel of each aggregation level in the PDCCH according to the configuration.
  • Number, the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission are blindly detected in the first slot of the subframe in the enhanced PDCCH region, in the second slot of the subframe in the enhanced PDCCH region Blind detection is used to schedule other DCI formats for the PUSCH.
  • the blind detection module 200 receives the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH notified by the network side before performing the blind detection.
  • the first method for data transmission in the embodiment of the present invention includes the following steps:
  • Step 501 The network side configures the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of blind detections of the PDCCH in the PDCCH search space of the user equipment.
  • Step 502 The network side performs data transmission by using the configured PDCCH.
  • the network side configures the transmission information of the enhanced PDCCH and/or the channel resource of the candidate PDCCH.
  • the configuration includes the following: 1.
  • the configuration of the embodiment of the present invention is used to configure the transmission information of the enhanced PDCCH. 2. Only the embodiment of the present invention is used.
  • the scheme allocates channel resources of the candidate PDCCH. 3.
  • the scheme of the embodiment of the present invention configures the transmission information of the enhanced PDCCH and the channel resources of the candidate PDCCH. The following is introduced separately.
  • Manner 1 The transmission information of the enhanced PDCCH is configured by using the solution of the embodiment of the present invention.
  • the network side transmits the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first time slot of the subframe in the enhanced PDCCH region, and is used for scheduling the PUSCH.
  • the other DCI formats are transmitted in the second time slot of the subframe in the enhanced PDCCH region. See Figure 7 for details.
  • the specific configuration (that is, the configuration of the transmission information of the enhanced PDCCH) may be specified in the protocol, or the user terminal may be notified by the network side.
  • the step 501 may further include:
  • the network side notifies the user equipment to enhance the transmission information of the PDCCH.
  • the network side configures the number of PDCCH candidate channels in each PDCCH in the enhanced PDCCH, so that the sum of the number of configured PDCCH candidate channels is not greater than the sum of the number of PDCCH candidate channels in the user equipment-specific search space.
  • the specific configuration (that is, the number of PDCCH candidate channels for enhancing the aggregation level in the PDCCH) may be specified in the protocol (that is, preset), or may be notified by the network side to the user terminal.
  • the step 501 may further include:
  • the network side notifies the user equipment to enhance the number of PDCCH candidate channels of each aggregation level in the PDCCH.
  • Manner 3 The scheme of the embodiment of the present invention is used to configure the transmission information of the enhanced PDCCH and the channel resource of the candidate PDCCH.
  • the network side transmits the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission in the first time slot of the subframe in the enhanced PDCCH region, and is used for scheduling the PUSCH.
  • the other DCI formats are transmitted in the second slot of the subframe in the enhanced PDCCH region, and the number of PDCCH candidate channels for each aggregation level in the enhanced PDCCH is determined.
  • the specific configuration may be specified in the protocol, or the user side may be notified by the network side.
  • the specific configuration herein may be a configuration of enhanced transmission information of the PDCCH and/or configuration of a channel resource of the candidate PDCCH.
  • the step 501 may further include:
  • the network side notifies the user equipment to enhance the transmission information of the PDCCH and/or the channel resource of the candidate PDCCH.
  • the sum of the number of candidate PDCCH channels in the third mode is not necessarily smaller than the sum of the number of PDCCH candidate channels in the user-specific search space, as long as the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of users.
  • the number of blind detections of the PDCCH in the device-specific PDCCH search space may be sufficient.
  • the embodiment of the present invention is not limited to the foregoing three manners, and the other manners that the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the number of blind detections of the PDCCH in the dedicated PDCCH search space of the user equipment are applicable to the present disclosure. Inventive embodiments.
  • the device for data transmission and the method for data transmission are also provided in the embodiment of the present invention. Since the principle of solving the problem is similar to the system for data transmission, the implementation of these devices and methods can be referred to the system. Implementation, repetition will not be repeated.
  • the second method for data transmission in the embodiment of the present invention includes the following steps:
  • Step 601 The user equipment performs blind detection on the enhanced PDCCH according to the configured enhanced PDCCH transmission information and/or the channel resource of the candidate PDCCH, where the number of blind detections of the PDCCH in the configured PDCCH search space is not greater than the user equipment exclusive PDCCH search space. The number of blind checks in the PDCCH.
  • Step 602 The user equipment receives data on the enhanced PDCCH by using a blind check.
  • the configuration on the network side includes three scenarios: 1.
  • the configuration of the embodiment of the present invention is used to configure the transmission information of the enhanced PDCCH.
  • the channel resources of the candidate PDCCH are configured only by using the solution in the embodiment of the present invention;
  • the solution of the embodiment of the present invention configures the transmission information of the enhanced PDCCH and the channel resource of the candidate PDCCH.
  • the user equipment blindly checks the DCI format and scheduling used for scheduling PDSCH transmission in the first time slot of the subframe in the enhanced PDCCH region in step 601.
  • the DCI format 0 of the PUSCH transmission blindly checks other DCI formats for scheduling the PUSCH in the second time slot of the subframe in the enhanced PDCCH region.
  • the user equipment according to the configured enhanced PDCCH the number of PDCCH candidate channels in each enhanced level, in each candidate A blind check is performed on the PDCCH.
  • the user equipment in the enhanced PDCCH region according to the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH is configured in step 601.
  • the DCI format for scheduling PDSCH transmission and the DCI format 0 for scheduling PUSCH transmission are blindly detected, and the second time slot of the subframe in the enhanced PDCCH region is blindly checked for scheduling other PUSCH. DCI format.
  • the method further includes:
  • the user terminal receives the enhanced PDCCH transmission information notified by the network side and/or the number of PDCCH candidate channels of each aggregation level in the enhanced PDCCH.
  • the network side configures the transmission information of the enhanced physical downlink control channel PDCCH and/or the channel resource of the candidate PDCCH, and the user equipment can be configured according to the configuration.
  • the network side can configure the data transmission, and the user equipment can receive data through blind detection.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can be embodied in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • the number of blind detections of the PDCCH in the PDCCH search space is not greater than the number of blind detections of the PDCCH in the PDCCH search space of the user equipment. Therefore, based on the enhanced PDCCH, the number of blind detections of the PDCCH can be further effectively reduced, and the user equipment is implemented. The complexity.

Landscapes

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

Abstract

Un mode de réalisation de la présente demande concerne le domaine technique des radiocommunications, et porte en particulier sur un procédé, un système et un dispositif de transmission de données utilisés pour transmettre des données par un canal de commande de liaison descendante physique (PDCCH) amélioré. Le procédé de transmission de données du mode de réalisation de la présente demande comprend les opérations suivantes : un côté réseau configure les informations de transmission du PDCCH amélioré et/ou les ressources de canal d'un PDCCH candidat, le nombre de détections aveugles du PDCCH dans l'espace de recherche de PDCCH configuré n'étant pas supérieur au nombre de détections aveugles du PDCCH dans l'espace de recherche de PDCCH spécifique d'UE (501); et le côté réseau transmet des données par le PDCCH configuré (502). Etant donné que le nombre de détections aveugles du PDCCH dans l'espace de recherche de PDCCH configuré n'est pas supérieur au nombre de détections aveugles du PDCCH dans l'espace de recherche de PDCCH spécifique d'UE, sur la base du PDCCH amélioré, le nombre de détections aveugles du PDCCH et la complexité de l'UE sont efficacement encore réduits.
PCT/CN2012/073432 2011-05-03 2012-03-31 Procédé, système et dispositif de transmission de données WO2012149848A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110113229.2A CN102164416B (zh) 2011-05-03 2011-05-03 一种数据传输的方法、系统和设备
CN201110113229.2 2011-05-03

Publications (1)

Publication Number Publication Date
WO2012149848A1 true WO2012149848A1 (fr) 2012-11-08

Family

ID=44465316

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/073432 WO2012149848A1 (fr) 2011-05-03 2012-03-31 Procédé, système et dispositif de transmission de données

Country Status (2)

Country Link
CN (1) CN102164416B (fr)
WO (1) WO2012149848A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110383729A (zh) * 2017-12-08 2019-10-25 Lg电子株式会社 用于在无线通信系统中发送或接收信号的方法及其装置

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103518415B (zh) 2011-02-11 2017-05-24 交互数字专利控股公司 用于增强型控制信道的系统和方法
CN102164416B (zh) * 2011-05-03 2014-04-16 电信科学技术研究院 一种数据传输的方法、系统和设备
CN103052160B (zh) * 2011-10-11 2015-12-16 华为技术有限公司 用于增强物理下行控制信道的通信方法和用户设备
EP2795861B1 (fr) * 2011-10-28 2019-07-17 Samsung Electronics Co., Ltd. Procédé de recherche de canaux physiques de commande de liaison descendante dans un système de communication
US10079658B2 (en) 2011-11-04 2018-09-18 Qualcomm Incorporated Search space design for e-PDCCH in wireless communication networks
CN102611524B (zh) * 2011-12-19 2015-02-04 电信科学技术研究院 一种传输信息的方法、系统及设备
WO2013112972A1 (fr) * 2012-01-27 2013-08-01 Interdigital Patent Holdings, Inc. Systèmes et/ou procédés d'établissement d'un canal epdcch dans un réseau basé sur de multiples porteuses et/ou quasi-assemblé
US9713133B2 (en) 2012-01-30 2017-07-18 Lg Electronics Inc. Method for transceiving downlink control channel in wireless communication system and apparatus therefor
US9635658B2 (en) * 2012-02-27 2017-04-25 Samsung Electronics Co., Ltd. Adaptation of control signaling transmissions to variations in respective resources
CN103326841B (zh) * 2012-03-19 2019-08-09 北京三星通信技术研究有限公司 一种配置下行控制信道的搜索空间的方法及设备
CN103327521B (zh) 2012-03-20 2016-12-14 上海贝尔股份有限公司 用于分配和检测下行链路控制信道资源的方法以及设备
CN103546233B (zh) 2012-07-12 2016-12-28 电信科学技术研究院 一种盲检方式确定方法、盲检方法及装置
CN103580837B (zh) 2012-08-03 2019-01-22 中兴通讯股份有限公司 控制信令发送、检测方法及基站及终端
CN104823395B (zh) * 2012-11-28 2018-11-02 Lg 电子株式会社 一种用于接收或者发送下行链路控制信号的方法及其装置
EP2938145B1 (fr) * 2013-01-18 2017-03-15 Huawei Technologies Co., Ltd. Procédé et dispositif permettant de déterminer un candidat epdcch
WO2018058443A1 (fr) * 2016-09-29 2018-04-05 华为技术有限公司 Procédé de transmission de canal et procédé de réception de canal et dispositif
CN108811133A (zh) * 2017-05-05 2018-11-13 电信科学技术研究院 一种下行控制信道的传输方法及装置
CN109041224A (zh) * 2017-06-08 2018-12-18 中国移动通信有限公司研究院 控制信息的传输及检测方法、基站、用户设备和存储介质
CN109391967B (zh) * 2017-08-11 2021-04-06 维沃移动通信有限公司 一种信息上报及信息处理方法、终端及网络设备
CN109392151B (zh) * 2017-08-11 2023-04-18 维沃移动通信有限公司 一种确定pdcch搜索空间的方法、装置及系统
CN109788559B (zh) * 2017-11-14 2021-01-08 维沃移动通信有限公司 非对称频谱的带宽部分bwp切换方法、终端及网络设备
CN110138500B (zh) * 2018-02-08 2021-09-21 展讯通信（上海）有限公司 下行控制信息的检测方法、装置及用户设备
CN110149181B (zh) * 2018-02-12 2022-02-01 维沃移动通信有限公司 搜索空间信道估计数的分配方法和终端设备
SG11202007716PA (en) * 2018-02-13 2020-09-29 Guangdong Oppo Mobile Telecommunications Corp Ltd Method for blind detection of physical downlink control channel and terminal device
CN110830216B (zh) * 2018-08-10 2021-03-30 华为技术有限公司 确定载波聚合下监控pdcch候选数目的方法和装置
CN112291043B (zh) * 2020-10-28 2022-09-02 惠州Tcl移动通信有限公司 数据传输方法、装置及存储介质

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699901A (zh) * 2009-09-28 2010-04-28 上海华为技术有限公司 优化用户设备搜索空间的方法及装置
CN101702828A (zh) * 2009-11-03 2010-05-05 中兴通讯股份有限公司 资源分配方法及系统、盲检测方法、基站、用户设备
CN101883369A (zh) * 2010-07-06 2010-11-10 新邮通信设备有限公司 一种盲检测方法
CN102014494A (zh) * 2009-09-29 2011-04-13 大唐移动通信设备有限公司 一种下行调度信息的配置方法及装置
CN102164416A (zh) * 2011-05-03 2011-08-24 电信科学技术研究院 一种数据传输的方法、系统和设备

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101714892B (zh) * 2009-11-02 2014-12-31 中兴通讯股份有限公司 一种下行控制信息的传输方法及系统

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101699901A (zh) * 2009-09-28 2010-04-28 上海华为技术有限公司 优化用户设备搜索空间的方法及装置
CN102014494A (zh) * 2009-09-29 2011-04-13 大唐移动通信设备有限公司 一种下行调度信息的配置方法及装置
CN101702828A (zh) * 2009-11-03 2010-05-05 中兴通讯股份有限公司 资源分配方法及系统、盲检测方法、基站、用户设备
CN101883369A (zh) * 2010-07-06 2010-11-10 新邮通信设备有限公司 一种盲检测方法
CN102164416A (zh) * 2011-05-03 2011-08-24 电信科学技术研究院 一种数据传输的方法、系统和设备

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110383729A (zh) * 2017-12-08 2019-10-25 Lg电子株式会社 用于在无线通信系统中发送或接收信号的方法及其装置

Also Published As

Publication number Publication date
CN102164416A (zh) 2011-08-24
CN102164416B (zh) 2014-04-16

Similar Documents

Publication Publication Date Title
WO2012149848A1 (fr) Procédé, système et dispositif de transmission de données
JP6801059B2 (ja) バンドリングを考慮した接続モード設計
US9877278B2 (en) Monitoring a narrowband control channel for a wideband system to reduce power consumption
US20220279479A1 (en) User Equipment (UE) Grouping Criteria and Mechanisms for False Paging Reduction
WO2021008587A1 (fr) Procédé mis en œuvre par un équipement utilisateur, et équipement utilisateur
JP6162244B2 (ja) 端末装置、基地局装置、および通信方法
US9854599B2 (en) Terminal device, integrated circuit, and radio communication method capable of reducing power consumption in radio communication system to which dynamic TDD is applied
WO2012155690A1 (fr) Procédé, système et équipement associé, pour une indication d'emplacements de ressources et une estimation de voie à l'aveugle
WO2012152149A1 (fr) Procédé et dispositif de réception et d'émission d'informations dans un canal de commande de liaison descendante physique
WO2018166421A1 (fr) Procédé, dispositif et système de transmission d'informations de commande
WO2013023541A1 (fr) Procédé et dispositif pour transmettre des données de contrôle sur la liaison descendante
EP3313121B1 (fr) Dispositif terminal, procédé de communication et circuit intégré
WO2013067828A1 (fr) Procédé et dispositif d'envoi et de détection aveugle d'informations
WO2011097998A1 (fr) Procédé, système et dispositif pour la programmation d'un accès aléatoire non concurrentiel et pour la transmission d'un préambule
WO2013091414A1 (fr) Procédé, système et appareil de transmission d'informations
WO2014015479A1 (fr) Procédé d'envoi et de réception d'informations de commande de liaison descendante, nœud de service et équipement utilisateur
WO2012159496A1 (fr) Procédé et dispositif d'indication de planification de ressource
WO2018058485A1 (fr) Procédé et appareil d'écoute, d'envoi et de réception d'informations de commande de liaison descendante
WO2012136109A1 (fr) Procédé, système et dispositif pour la programmation et la réception de données
WO2012171395A1 (fr) Procédé, système et dispositif d'attribution et de détermination de pdcch
WO2014000309A1 (fr) Procédé de transmission d'informations de commande en liaison descendante, station de base et terminal
WO2014101671A1 (fr) Procédé, système et dispositif pour la transmission de données
EP3179801B1 (fr) Atténuation des interférences entre la communication d'appareil à appareil et la communication cellulaire
WO2014098517A1 (fr) Procédé de transmission de signal et dispositif d2d (communication dispositif à dispositif) dans un système de communication sans fil
US20160338016A1 (en) Mobile communication system and user terminal

Legal Events

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

Ref document number: 12779830

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12779830

Country of ref document: EP

Kind code of ref document: A1