WO2013107267A1 - Procédé et système de notification d'une signalisation de commande de fréquence pilote de démodulation sur la liaison montante - Google Patents

Procédé et système de notification d'une signalisation de commande de fréquence pilote de démodulation sur la liaison montante Download PDF

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Publication number
WO2013107267A1
WO2013107267A1 PCT/CN2012/087730 CN2012087730W WO2013107267A1 WO 2013107267 A1 WO2013107267 A1 WO 2013107267A1 CN 2012087730 W CN2012087730 W CN 2012087730W WO 2013107267 A1 WO2013107267 A1 WO 2013107267A1
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WIPO (PCT)
Prior art keywords
signaling
dci
control information
user
search space
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PCT/CN2012/087730
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English (en)
Chinese (zh)
Inventor
郭森宝
孙云锋
张晨晨
任敏
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中兴通讯股份有限公司
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Publication of WO2013107267A1 publication Critical patent/WO2013107267A1/fr

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • 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
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for notifying uplink pilot control signaling. Background technique
  • LTE Long Term Evolution
  • R10 adds many new features to the former two, such as Demodulation Reference Signal (Demodulation Reference Signal), CSI-RS (Channel State Information Reference Signal). , channel state information reference signal) and other pilot characteristics, 8 antenna support and other transmission and feedback characteristics, etc., especially elCIC (ehanced Inter-Cell Interference Cancellin) technology is considering R8/9 ICIC (cell On the basis of inter-interference cancellation, further consider the interference avoidance technique between cells. For the technology to solve the interference problem between cells, the cell interference avoidance under the isomorphic network is mainly considered in the early stage of the R10 phase, and the mainstream considerations include elCIC technology and CoMP (Coordinated Multi-point) technology.
  • CoMP is the cooperation of multiple nodes to one or more UEs (to reduce interference between cells, improve the throughput of cell edges, and expand cell coverage.
  • the complexity of CoMP technology and the time limit discussed by R10 ultimately decided not to introduce additional CoMP standardization content in the R10 phase, but the design of CSI-RS can be designed in consideration of the requirements of the CoMP part, so CoMP technology did not proceed after the 60bis meeting. A deeper discussion.
  • LTE defines a PDCCH (Physical Downlink Control Channel) bearer scheduling allocation and other control information, and each PDCCH is composed of a number of CCEs (Control Channel Element), and the number of CCEs per subframe is determined by the PDCCH.
  • Quantity and downlink) Bandwidth is 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 common search space refers to an area that all UEs search for, and the space 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 notified by the high layer signaling.
  • RNTI Radio Network Temporary
  • Table 1 shows the PDCCH candidate set table.
  • the aggregation level is the number of CCEs occupied by the PDCCH.
  • Table 2 is the correspondence table between the aggregation level and the first CCE position.
  • the relative position of the first control channel unit in the user-specific search space refers to the relative position of the first CCE index nCCE occupied by the PDCCH and the initial position of the blind detection.
  • Figure 3 it is a schematic diagram of the UE-specific search space, the possible first CCE location and its corresponding aggregation level.
  • single-user MIMO Single User-MIMO, SU-MIMO
  • single-segment based on demodulation pilot can be effectively supported.
  • Multi-user MIMO Multi-User MIMO, MU-MIMO for short
  • UE User Equipment
  • the uplink CoMP system proposes a higher inter-cell MU (Multi User or Paired User). Requirements include the ability to support more users simultaneously and the orthogonality between these multiple users.
  • inter-cell MUs For inter-cell MUs, if different cells are configured with different uplink demodulation pilot sequence groups, they can only be orthogonalized by Orthogonal Cover Code (OCC), and at most two users can be multiplexed at the same time; If different cells are configured with the same uplink demodulation pilot sequence group, more users can be multiplexed by using Cyclic Shift (CS) and/or OCC. Therefore, it is necessary to consider how to enable UEs in multiple cells to transmit with the same demodulation pilot root sequence. In the discussion of the previous conference, the high-level signaling or physical layer signaling is mainly used to notify the demodulation pilot offset.
  • OFC Orthogonal Cover Code
  • the value may also include reusing bits in the existing PDCCH or UL-Grant (uplink grant) to indicate its root sequence configuration offset value.
  • uplink grant uplink grant
  • the possible problem is that if the OCC is orthogonal, the CS hopping method of demodulating the pilot sequence in the Physical Uplink Shared Channel (PUSCH) cannot guarantee the inter-cell MU users.
  • the CS hopping mode is the same, which causes CS conflicts between MU users or the OCC cannot be decoded correctly, thus affecting the performance of MU users between cells. Therefore, in order to ensure orthogonality of UEs between different cells, it may be necessary for the UE to perform sub-frame level or disable (snap) such slot hopping or to indicate which paired UE is used by dynamic signaling. Slot hopping offset value.
  • n s represents the sequence hopping pattern and f ss represents the sequence index.
  • n s represents the sequence hopping pattern and f ss represents the sequence index.
  • Sequence group hopping function is off The sequence group hopping function is enabled, and the sequence group hopping function is turned on or off in R10 by cell-specific high-level signaling Group-hopping-enabled. If the network side does not send Group-hopping-enabled signaling to the cell, for all users in the cell:
  • R10 also defines user-specific (ue-specific) high-level signaling Disable-sequence-group-hopping to disable the use of OCC technology for demodulation pilots on PUSCH.
  • the pseudo-random sequence C(M s ) represents the hopping pattern of the sequence, and its initial value satisfies:
  • the on or off of the intra-group sequence hopping function is controlled by the cell-specific high-level signaling Sequence-hopping-enabled in R10, and the above-mentioned user-specific (ue-specific) defined in R10
  • the high-level signaling Disable-sequence-group-hopping can also be used to turn off the intra-group sequence hopping function for a specific user.
  • the sequence group hopping function and sequence hopping function in the group cannot be used at the same time.
  • the PUSCH of any two or more different cells cannot use the same demodulation pilot sequence in the current standard.
  • the inter-cell user multiplexing cannot be implemented by the CS. .
  • each user is identified in R10:
  • the DMRS is configured by the network side through high-level signaling, and the DMRS, /l is adopted by the network side.
  • the initial value of its pseudo-random sequence is: + f PUSCH
  • the network side can coordinate the initial CS values between cells through the high-level parameter ⁇ MRS, but since the cell identifiers ⁇ 7 ⁇ ? and/or the sequence index information s USeH of different cells are inconsistent, the inter-cell MU users cannot be guaranteed.
  • the CS transition mode is the same.
  • a cell In an uplink CoMP system, a cell usually has multiple edge UEs. Since the cooperation set defined in R11 is user-specific, that is, the set of coordinated cells of each edge UE may be different, and the network side is difficult to pass the current R10.
  • the cell-specific high-level parameter A ss ensures that each coordinated cell of each edge UE uses the same sequence group.
  • the network side selectively configures the same sequence group or different sequence groups for different cells. Therefore, relative to R10, the demodulation pilot sequence hopping pattern inconsistency problem is more prominent in the uplink CoMP system.
  • the UE-Specific-based method to configure the root sequence of demodulation pilots of PUCCH (Physical Uplink Control CHannel) and PUSCH (Physical Uplink Shared Channel).
  • the offset value that is, the A PUSCH is UE-Specific, and after calculating / ⁇ and USGH , a UE-Specific offset value A PUCCH (PUCCH root sequence offset) or A PUSCH (PUSCH) can be used respectively.
  • the root sequence is offset) to bias the UE's sequence.
  • the configuration of the virtual cell ID (N!D 1 ) may also be used to enable the specific UE to use the same root sequence and the same CS Hopping Hopping Mode pattern. It is also possible to configure the fixed CS Hopping Pattern to enable the paired UE to use the same CS Hopping Pattern.
  • IFDM Interleave Frequency Division Multiplex
  • different UEs can occupy different carriers of the same resource block to implement orthogonality of demodulation pilots. Therefore, it is necessary to further consider how the IFDM method notifies the UE to use IFDM or adopt the traditional R8/9/10. The method, or after using the IFDM method, how to inform the UE which carrier of the IFDM method or the signaling method of the comb (dressing frequency domain carrier) is not standardized at present.
  • the technical problem to be solved by the present invention is to provide a method and system for notifying the uplink demodulation pilot control signaling, so as to indicate the parameters of the uplink demodulation pilot control signaling, so that the base station side and the terminal side reach a solution to solve the above technology.
  • the present invention provides a method for notifying the uplink demodulation pilot control signaling, including: the base station configuring multiple sets of uplink demodulation pilot virtual signaling groups for the user;
  • the indication information includes:
  • New data indication information in invalid transport block signaling in the uplink grant control information
  • the aggregation level of the uplink grant control information in the user-specific and/or public search space the relative position of the first control channel unit of the uplink grant control information in the user-specific search space in the user-specific search space;
  • the uplink authorization control information includes at least one of the following formats:
  • LTE Long Term Evolution
  • the foregoing method further has the following features: the user-specific and/or common search space includes: a DCI formatO search space of an LTE R10 version or a previous version thereof, a DCI formatla search space, a DCI format4 search space, and an LTE R10 version.
  • DCI Format search space At least one of them.
  • the foregoing method further has the following features: the aggregation level includes: DCI formatO aggregation level of the LTE R10 version or a previous version thereof, DCI formatla aggregation level, DCI format4 aggregation level, and DCI Format aggregation level after the LTE R10 version At least one.
  • the subframe in which the uplink grant control information is located includes: DCI formatO uplink grant control information of the LTE R10 version or a previous version thereof, DCI formatla uplink grant control information, and DCI format4 uplink grant control information. And at least one of the subframes in which the DCI Format uplink grant control information after the LTE R10 version is located.
  • the information in the virtual signaling group includes at least one of the following enhanced signaling:
  • the time domain or frequency domain location of the DMRS is the time domain or frequency domain location of the DMRS
  • the present invention further provides a base station, including:
  • the configuration module is configured to: configure a plurality of sets of uplink demodulation pilot virtual signaling groups for the user; and the notification module is configured to: notify the user of the used uplink demodulation pilot by using at least one of the following indication information:
  • the virtual signaling group index used, the indication information includes:
  • New data indication information in invalid transport block signaling in the uplink grant control information Aggregation level of uplink authorization control information in user-specific and/or public search spaces;
  • the subframe number in which the uplink grant control information is located in the user-specific and/or public search space the system frame number in which the uplink grant control information is located in the user-specific and/or public search space.
  • the uplink grant control information includes at least one of the following formats: Long Term Evolution (LTE) R10 version or a previous version of DCI format 0, DCI formatla, DCI format 4, and LTE R10 version Future versions of DCI Format.
  • LTE Long Term Evolution
  • the above base station further has the following features:
  • the user-specific and/or public search space includes: at least one of a DCI formatO search space, a DCI formatla search space, a DCI format4 search space, and a DCI Format search space after the LTE R10 version of the LTE R10 version or a previous version thereof.
  • the foregoing base station further has the following features: the aggregation level includes: a DCI formatO aggregation level of the LTE R10 version or a previous version thereof, a DCI formatla aggregation level, a DCI format4 aggregation level, and a DCI Format aggregation level after the LTE R10 version. At least one.
  • the foregoing base station further has the following features: the subframe in which the uplink grant control information is located includes: DCI formatO uplink grant control information of the LTE R10 version or a previous version thereof, DCI formatla uplink grant control information, and DCI format4 uplink grant control information. And at least one of the subframes in which the DCI Format uplink grant control information after the LTE R10 version is located.
  • the foregoing base station further has the following features: the information in the virtual signaling group includes at least one of the following enhanced signaling:
  • DMRS interleaved frequency division multiplexing mode indication signaling DMRS interleaved frequency division multiplexing grooming frequency domain carrier notification indication signaling;
  • the time domain or frequency domain location of the DMRS is the time domain or frequency domain location of the DMRS
  • the present invention further provides a method for processing uplink demodulation pilot control signaling, including: receiving, by a terminal, multiple sets of uplink demodulation pilot virtual signaling groups configured by a base station, and storing the same; After the indication information sent by the base station, the virtual signaling group of the uplink demodulation pilot is selected according to the indication information; and the uplink demodulation pilot is sent by using the selected virtual signaling group, where the indication information includes At least one of the following:
  • New data indication information in invalid transport block signaling in the uplink grant control information
  • the aggregation level of the uplink grant control information in the user-specific and/or public search space the relative position of the first control channel unit of the uplink grant control information in the user-specific search space in the user-specific search space;
  • the uplink grant control information includes at least one of the following formats: a Long Term Evolution (LTE) R10 version or a previous version of the DCI format 0, a DCI formatla DCI format 4, and a DCI Format of an LTE RIO version or later.
  • LTE Long Term Evolution
  • the user-specific and/or common search space includes: at least one of a DCI formatO search space, a DCI formatla search space, a DCI format4 search space, and a DCI Format search space of an LTE R10 version or a previous version of the LTE R10 version or a previous version thereof.
  • the aggregation level includes: at least one of a DCI formatO aggregation level, a DCI formatla aggregation level, a DCI format4 aggregation level, and a DCI Format aggregation level after the LTE R10 version of the LTE R10 version or a previous version thereof.
  • the subframe in which the uplink grant control information is located includes: DCI formatO uplink grant control information of the LTE R10 version or a previous version thereof, DCI formatla uplink grant control information, DCI format4 uplink grant control information, and DCI after the LTE R10 version. At least one of the subframes in which the Format uplink grant control information is located.
  • the information in the virtual signaling group includes at least one of the following enhanced signaling: indication signaling for notifying a user to demodulate a reference signal DMRS dedicated root sequence offset value;
  • the time domain or frequency domain location of the DMRS is the time domain or frequency domain location of the DMRS
  • the present invention further provides a terminal, including:
  • the receiving module is configured to: receive a virtual signaling group of multiple sets of uplink demodulation pilots configured by the base station; and the storage module is configured to: store the virtual signaling group of the multiple sets of uplink demodulation pilots; and select a module, set to After the indication information sent by the base station is blindly detected, a set of virtual signaling groups of the uplink demodulation pilot is selected according to the indication information;
  • the processing module is configured to: send the uplink demodulation pilot by using the selected virtual signaling group, where the indication information includes at least one of the following:
  • Power control signaling bits of DCI format 3A in common control signaling New data indication information in invalid transport block signaling in the uplink grant control information; aggregation level of uplink grant control information in the user-specific and/or public search space;
  • the subframe number in which the uplink grant control information is located in the user-specific and/or public search space the system frame number in which the uplink grant control information is located in the user-specific and/or public search space.
  • the uplink authorization control information includes at least one of the following formats:
  • LTE Long Term Evolution
  • DCI format4 and DCI Format of LTE RIO and later versions are DCI formats4 and DCI Format of LTE RIO and later versions.
  • the user-specific and/or common search space includes: at least one of a DCI formatO search space, a DCI formatla search space, a DCI format4 search space, and a DCI Format search space of an LTE R10 version or a previous version of the LTE R10 version or a previous version thereof.
  • the aggregation level includes: at least one of a DCI formatO aggregation level, a DCI formatla aggregation level, a DCI format4 aggregation level, and a DCI Format aggregation level after the LTE R10 version of the LTE R10 version or a previous version thereof.
  • the subframe in which the uplink grant control information is located includes: DCI formatO uplink grant control information of the LTE R10 version or a previous version thereof, DCI formatla uplink grant control information, DCI format4 uplink grant control information, and DCI after the LTE R10 version. At least one of the subframes in which the Format uplink grant control information is located.
  • the information in the virtual signaling group includes at least one of the following enhanced signaling: indication signaling for notifying a user to demodulate a reference signal DMRS dedicated root sequence offset value;
  • DMRS interleaved frequency division multiplexing grooming frequency domain carrier notification indication signaling The time domain or frequency domain location of the DMRS;
  • the present invention also provides a communication system including the above-described base station and the above-described terminal.
  • FIG. 1 is a schematic diagram of a base station according to an embodiment of the present invention.
  • FIG. 2 is a schematic diagram of a terminal according to an embodiment of the present invention.
  • FIG. 3 is a flowchart of a method for notifying uplink demodulation pilot control signaling according to an embodiment of the present invention
  • FIG. 4 is a flowchart of a method for processing uplink demodulation pilot control signaling according to an embodiment of the present invention.
  • the communication system of the embodiment of the present invention includes a base station and a user terminal, which are used to indicate parameters of the uplink demodulation pilot control signaling, so that the base station side and the terminal side are unified.
  • FIG. 1 is a schematic diagram of a base station according to an embodiment of the present invention. As shown in FIG. 1, the base station in this embodiment includes:
  • a configuration module configured to configure a plurality of sets of uplink demodulation pilot virtual signaling groups for the user
  • a notification module configured to notify the user of the used uplink demodulation pilot by using at least one of the following indication information
  • the virtual signaling group index where the indication information includes:
  • TPC Transmission Power Control
  • New data indication information in invalid transport block signaling in the uplink grant control information Aggregation level of uplink grant control information in the user-specific and/or public search space; relative position of the first control channel unit of the uplink grant control information in the user-specific search space in the user-specific search space;
  • the subframe number in which the uplink grant control information is located in the user-specific and/or public search space the system frame number in which the uplink grant control information is located in the user-specific and/or public search space.
  • FIG. 2 is a schematic diagram of a terminal according to an embodiment of the present invention. As shown in FIG. 2, the terminal in this embodiment includes:
  • a receiving module configured to receive a virtual signaling group of multiple sets of uplink demodulation pilots configured by the base station, and a storage module, configured to store the virtual signaling group of the multiple sets of uplink demodulation pilots;
  • a selection module configured to: after the blind detection to the indication information sent by the base station, select a set of virtual signaling groups of the uplink demodulation pilot according to the indication information;
  • a processing module configured to send the uplink demodulation pilot by using the selected virtual signaling group.
  • FIG. 3 is a flowchart of a method for notifying an uplink demodulation pilot control signaling according to an embodiment of the present invention. As shown in FIG. 3, the method in this embodiment is directed to a base station, and may include the following steps:
  • the base station configures, by the user, multiple sets of virtual signaling groups of uplink demodulation pilots.
  • the virtual signaling group index used by the uplink demodulation pilot used by the UE is notified by using at least one of the following indication information, where the indication information includes:
  • TPC Transmit power control
  • DCI Format Downlink Control Information Format
  • Invalid TB Transport Block
  • the first control channel element of the uplink grant control information in the UE-specific and/or public search space The relative position of the Control Channel Element (CCE) in the UE-specific and/or public search space;
  • CCE Control Channel Element
  • the system frame number in which the uplink grant control information is located in the UE-specific and/or public search space is located in the UE-specific and/or public search space.
  • the uplink authorization control information includes one or more of the following formats:
  • the user-specific and/or common search space of the uplink authorization control information includes: a DCI formatO search space, a DCI formatla search space, a DCI format4 search space, and a DCI Format search after the LTE R10 version of the LTE R10 version or a previous version thereof. At least one of the spaces.
  • the aggregation level includes: at least one of a DCI formatO aggregation level, a DCI formatla aggregation level, a DCI format4 aggregation level, and a DCI Format aggregation level after the LTE R10 version of the LTE R10 version or a previous version.
  • the subframe in which the uplink grant control information is located includes: DCI formatO uplink grant control information of the LTE R10 version or a previous version thereof, DCI formatla uplink grant control information, DCI format4 uplink grant control information, and DCI Format uplink after the LTE R10 version. At least one of the subframes in which the authorization control information is located.
  • the information in the virtual signaling group includes at least one of the following enhanced signaling:
  • CS Hopping Pattern indication signaling including: whether CS Hopping is enabled or a pattern of CS Hopping Pattern;
  • IFDM mode indication signaling indicating whether the UE transmits in IFDM mode
  • FIG. 4 is a flowchart of a method for processing uplink demodulation pilot control signaling according to an embodiment of the present invention. As shown in FIG. 4, the method in this embodiment includes the following steps:
  • the terminal receives the virtual signaling group of multiple sets of uplink demodulation pilots configured by the base station, and then stores the virtual signaling group.
  • the indication information is as described above, and the description is not repeated here.
  • the method of the embodiment of the present invention may indicate the parameters of the uplink demodulation pilot control signaling, so that the base station side and the terminal side are unified, and the uplink pilot is better utilized to implement the orthogonal and interference randomization effects, thereby improving channel estimation. Accuracy and increase system capacity.
  • the method of this embodiment also considers orthogonal guarantee to minimize interference, and quasi-orthogonal guarantees interference randomization to improve cell capacity.
  • the parameter collection and parameter group in this article are the same concept.
  • the virtual signaling, virtual signaling group and virtual signaling set referred to in this patent are only the name of one notification signaling, and may also be signaling, signaling group and signaling set or control signaling, control signaling. Let the group and control signaling set.
  • UE1 is a user of R11, and the base station side configures a plurality of sets of uplink demodulation pilot virtual signaling groups of UE1 through high-layer signaling, and then PDCCH or EPDCCH (Enhanced Physical Downlink Control Channel) on a subframe in which uplink service of UE1 needs to be scheduled.
  • the enhanced physical downlink control channel is transmitted by the area to indicate that the uplink data of the UE1 exists in the current subframe, and the UE1 performs blind detection on the subframe to obtain the indication information in the UL-grant.
  • the UE1 obtains the new data indication (NDI) information in the Disable TB (invalid TB) in the DCI Format 4 by blind detection to determine which one of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the base station is used. set.
  • NDI new data indication
  • the first virtual signaling parameter set is selected;
  • the second virtual signaling parameter set is selected.
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the UE1 obtains the new data indication (NDI) information in the Disable TB in the DCI Format 4 by blind detection to determine whether the TPC indication in the DCI is used to indicate power control or to indicate virtual signaling of the uplink demodulation pilot.
  • the TPC bit is used to indicate which one of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the base station is used by the UE.
  • the bits in the TPC are used to indicate the power control;
  • the bit in the TPC is used to refer to the virtual signaling of the uplink demodulation pilot.
  • UE1 detects 2 bits in the TPC command. If the TPC bit is 00, UE1 selects the first virtual signaling parameter set. If the TPC bit is 01, then UE1 selects the second virtual signaling parameter set, if TPC The bit is 10, at which time UE1 selects the third virtual signaling parameter set. If the TPC bit is 11, then UE1 selects the fourth virtual signaling parameter set.
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the UE1 obtains the TPC bit in the DCI Format 0/4 by blind detection to indicate which one of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the UE is used by the UE.
  • the TPC bit in the DCI Format 0/4 by blind detection to indicate which one of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the UE is used by the UE.
  • UE1 obtains DCI Format3/3A in the common control area according to the blind detection. At this time, UE1 considers that the TPC in DCI Format 0/4 is used to control the selection of virtual signaling groups of multiple sets of uplink demodulation pilots. Otherwise, the TPC is considered to be used for power control.
  • UE1 detects 2 bits in the TPC command. If the TPC bit is 00, then UE1 selects the first virtual signaling parameter set. If the TPC bit is 01, then UE1 The second virtual signaling parameter set is selected; if the TPC bit is 10, then UE1 selects the third virtual signaling parameter set; if the TPC bit is 11, then UE1 selects the fourth virtual signaling parameter set.
  • TPC bit is 00
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the base station side configures the virtual signaling group of the UE1 multiple uplink demodulation pilots by using the high layer signaling, and then sends the UL-Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of the UE1 needs to be scheduled.
  • the UE1 obtains which of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the UE using the TPC bits in the DCI Format 0/4 and the TIC bits in the DCI Format3/3A through the blind detection.
  • the UE1 obtains which of the virtual signaling groups of the multiple sets of uplink demodulation pilots configured by the UE using the TPC bits in the DCI Format 0/4 and the TIC bits in the DCI Format3/3A through the blind detection.
  • UE1 obtains TPC signaling in DCI Format 0/4 in the proprietary control area according to the blind detection. At this time, UE1 considers that DCI Format3/3A in the common control area is used to control the virtual signaling group of multiple sets of uplink demodulation pilots. The choice, otherwise, DCI Format3/3A is considered to be used for power control.
  • UE1 detects 2 bits in the DCI Format3 command. If the TPC bit is 00, then UE1 selects the first virtual signaling parameter set; if the TPC bit is 01 At this time, UE1 selects a second virtual signaling parameter set; if the TPC bit is 10, UE1 selects a third virtual signaling parameter set; if the TPC bit is 11, then UE1 selects the fourth virtual signaling parameter. set. UE1 detects 1 bit in the DCI Format3A command. If the DCI Format3A bit is 0, UE1 selects the first virtual signaling parameter set. If the DCI Format3A bit is 1, then UE1 selects the second virtual signaling parameter set. .
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then PDCCH or subframes on the subframe in which uplink traffic of UE1 needs to be scheduled.
  • the EPDCCH region sends a UL-Grant to indicate that there is uplink data of UE1 in the current subframe, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 determines the set of uplink demodulation pilot virtual signaling configured by the base station according to the location of the initial CCE where the UL- Grant is placed according to the blind detection.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 obtains the location of the starting CCE where the UL-Gate is placed and the invalid TB according to the blind check.
  • the new data indication information (NDI) in the signaling determines which of the multiple sets of uplink demodulation pilot virtual signaling configured by the base station.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 obtains the location of the starting CCE where the UL-Gold is placed according to the blind check (ie, the relative position of the first control channel unit in the user-specific and/or common search space), the aggregation level, and the invalid TB signaling.
  • the new data indicates the information NDI to determine which of the plurality of sets of uplink demodulation pilot virtual signaling configured by the base station.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 determines the current subframe TPC command indication power control or indicates uplink demodulation pilot virtual signaling according to the location and aggregation level of the starting CCE where the UL-Gate is placed according to the blind detection.
  • the bit in the TPC is used to refer to the virtual signaling of the uplink demodulation pilot.
  • the UE1 detects the 2 in the TPC command. If the TPC bit is 00, then UE1 selects the first virtual signaling parameter set. If the TPC bit is 01, then UE1 selects the second virtual signaling parameter set. If the TPC bit is 10, then UE1 The third virtual signaling parameter set is selected. If the TPC bit is 11, then UE1 selects the fourth virtual signaling parameter set.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 obtains the subframe number of the UL- Grant according to the blind detection to determine the current subframe TPC command to indicate power control or to indicate uplink demodulation pilot virtual signaling. For example: When UE1 detects that the UL- Grant subframe is an even subframe, the TPC command is selected to indicate power control; the UL- Grant subframe is an odd subframe, and the TPC command is selected to indicate the uplink demodulation pilot virtual signal.
  • the bit in the TPC is used to refer to the virtual signaling of the uplink demodulation pilot.
  • UE1 detects 2 bits in the TPC command. If the TPC bit is 00, UE1 selects the first virtual signaling parameter set. The TPC bit is 01. At this time, UE1 selects the second virtual signaling parameter set. If the TPC bit is 10, UE1 selects the third virtual signaling parameter set. If the TPC bit is 11, then UE1 selects the fourth. A set of virtual signaling parameters.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • the UE1 determines the current subframe TPC command indication power control or indicates the uplink demodulation pilot virtual signaling according to the blind detection to obtain the aggregation level of the UL- Grant.
  • the bits in the TPC are used to refer to the virtual signaling of the uplink demodulation pilot, at which time UE1 detects 2 bits in the TPC command, if the TPC bit is 00, then UE1 selects the first virtual signaling parameter set. If the TPC bit is 01, then UE1 selects the second virtual signaling parameter set, if the TPC bit is 10. At this time, UE1 selects a third virtual signaling parameter set. If the TPC bit is 11, UE1 selects a fourth virtual signaling parameter set.
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 determines the set of uplink demodulation pilot virtual signaling configured by the base station according to the location, aggregation level, and TPC of the starting CCE where the UL- Grant is placed according to the blind detection.
  • the fourth virtual signaling parameter set is selected
  • UE1 is a user of R11
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • the UE1 determines, according to the blind detection, the location of the starting CCE where the UL- Grant is placed, the aggregation level, and the subframe number of the UL- Grant or the system frame number to determine multiple sets of uplink demodulation pilot virtual signaling configured by the base station. Which one of them? E.g:
  • UE1 is a user of R11, and the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the base station side configures multiple sets of uplink demodulation pilot virtual signaling of UE1 through high-layer signaling, and then transmits UL- Grant in the PDCCH or EPDCCH region on the subframe in which the uplink service of UE1 needs to be scheduled.
  • the current subframe there is uplink data of UE1, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • the UE1 determines which one of the multiple sets of uplink demodulation pilot virtual signaling configured by the base station is configured by using the starting CCE and the aggregation level of the UL-Grant. Otherwise, UE1 does not use the starting CCE and aggregation level at which the UL- Grant is placed to determine which of the multiple sets of uplink demodulation pilot virtual signaling configured by the base station.
  • UE1 uses the starting CCE and aggregation level of the UL-Grant to determine which of the multiple sets of uplink demodulation pilot virtual signaling configured by the base station, and when UE1 detects the aggregation level L of the UL-Grant
  • UE1 is a user of R11
  • the base station side configures or pre-defines a plurality of uplink demodulation pilot patterns of UE1 through high-layer signaling, and then transmits UL in a physical downlink control channel in a subframe that needs to schedule uplink services of UE1.
  • the Grant indicates that the uplink data of the UE1 exists in the current subframe, and the UE1 performs blind detection on the subframe to obtain the indication information in the UL-grant.
  • the UE1 obtains the new data indication (NDI) information in the Disable TB (invalid TB) in the DCI Format 4 by blind detection to determine which one of the multiple sets of uplink demodulation pilots configured by the base station is used. .
  • NDI new data indication
  • the UE1 When the UE1 obtains the UL-Gold layer transmission according to the blind detection, and the new data indication (NDI) information in the Disable TB is 0, the first Demodulation Reference Signal (DMRS) pattern is selected;
  • NDI new data indication
  • DMRS Demodulation Reference Signal
  • the second DMRS pattern is selected.
  • Example 16 Assume that UE1 is a user of R1, and the base station side configures or pre-defines the time/frequency position of multiple uplink demodulation pilots of UE1 through high-layer signaling, and then performs physical downlink control channel on the subframe in which uplink service of UE1 needs to be scheduled.
  • the area sends a UL-Grant to indicate that there is uplink data of UE1 in the current subframe, and UE1 performs blind detection on the subframe to obtain indication information in the UL-Grant.
  • UE1 obtains new data indication (NDI) information in Disable TB (invalid TB) in DCI Format 4 by blind detection to determine multiple time/frequency positions in multiple sets of uplink demodulation pilots configured by the base station.
  • NDI new data indication
  • the UE1 obtains the UL-Gold layer transmission according to the blind detection, and the new data indication (NDI) information in the Disable TB is 0, the first DMRS time/frequency position is selected;
  • the second DMRS time/frequency position is selected.
  • the present invention may also notify the user of the virtual signal used by the uplink demodulation pilot used by various combinations of system frame numbers in which the uplink grant control information is located, and/or other combinations of the above information.
  • the group index here is no longer - for example.
  • the embodiment of the present invention provides a method and a system for notifying the uplink demodulation pilot control signaling, which can indicate the parameters of the uplink demodulation pilot control signaling, so that the base station side and the terminal side are unified.

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

Abstract

La présente invention concerne un procédé destiné à notifier une signalisation de commande de fréquence pilote de démodulation sur la liaison montante, consistant à : une station de base configure, pour un utilisateur, multiples ensembles d'ensembles de signalisation virtuelle d'une fréquence pilote de démodulation sur la liaison montante, et notifie à l'utilisateur par l'intermédiaire d'informations d'indication un index de signaleur virtuel auquel fait appel la fréquence pilote de démodulation sur la liaison montante utilisée.
PCT/CN2012/087730 2012-01-20 2012-12-27 Procédé et système de notification d'une signalisation de commande de fréquence pilote de démodulation sur la liaison montante WO2013107267A1 (fr)

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CN108271259B (zh) * 2016-12-30 2023-10-24 华为技术有限公司 控制信道的资源指示方法、用户设备和网络设备
US11368980B2 (en) * 2017-03-07 2022-06-21 Apple Inc. Monitoring control channels in control resource sets for new radio
CN112383940B (zh) * 2020-10-29 2022-11-15 杭州红岭通信息科技有限公司 一种物理上行控制信道的检测方法

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