WO2017219773A1 - 配置信息传输方法、装置及系统 - Google Patents

配置信息传输方法、装置及系统 Download PDF

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Publication number
WO2017219773A1
WO2017219773A1 PCT/CN2017/083638 CN2017083638W WO2017219773A1 WO 2017219773 A1 WO2017219773 A1 WO 2017219773A1 CN 2017083638 W CN2017083638 W CN 2017083638W WO 2017219773 A1 WO2017219773 A1 WO 2017219773A1
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WIPO (PCT)
Prior art keywords
target
csi
base station
group
frequency resource
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PCT/CN2017/083638
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English (en)
French (fr)
Inventor
杭海存
吴晔
刘瑾
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华为技术有限公司
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Priority to EP17814511.6A priority Critical patent/EP3457790B1/en
Publication of WO2017219773A1 publication Critical patent/WO2017219773A1/zh
Priority to US16/223,771 priority patent/US10827477B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0037—Inter-user or inter-terminal allocation
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H04L5/0057—Physical resource allocation for CQI
    • 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
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0466—Wireless resource allocation based on the type of the allocated resource the resource being a scrambling code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
    • H04W72/542—Allocation or scheduling criteria for wireless resources based on quality criteria using measured or perceived quality
    • 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
    • H04L5/0014—Three-dimensional division
    • H04L5/0016—Time-frequency-code
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a configuration information transmission method, apparatus, and system.
  • the long-term evolution (English: Long Term Evolution; LTE for short) communication system may include a user equipment (English: User Equipment; abbreviated as: UE) and a base station serving the UE.
  • the base station may perform resource configuration on the UE by sending configuration information to the UE.
  • the base station may encapsulate the configuration information in the downlink control information (Downlink Control Information; DCI), and send the configuration information to the UE through the physical downlink control channel (English: Physical Downlink Control Channel; PDCCH).
  • DCI Downlink Control Information
  • PDCCH Physical Downlink Control Channel
  • the configuration information is encapsulated in a Radio Resource Control (RRC) signaling, and the configuration information is sent to the UE through a Physical Downlink Shared Channel (PDSCH).
  • RRC Radio Resource Control
  • the related art has at least the following problem: when the number of UEs served by the base station is large, the base station needs to separately send configuration information to each UE to perform resource configuration for each UE, and if the base station The configuration information of some UEs in the served UE is the same. The base station needs to send the same resource configuration information to each UE separately, resulting in a large signaling overhead.
  • the embodiment of the present invention provides a configuration information transmission method, device, and system.
  • the technical solution is as follows:
  • a method for transmitting configuration information comprising:
  • the base station determines configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UEs, the target group
  • the CSI-RS configurations of all UEs are the same;
  • the base station sends the configuration information to the UE in the target group in the first preset time-frequency resource region.
  • each group corresponds to one configuration information. Therefore, the base station may determine configuration information corresponding to the target group, and then send the configuration to the UE in the target group in the first preset time-frequency resource region.
  • the information corresponding to the target group is used to indicate the CSI-RS configuration of the UE in the target group.
  • the target group includes at least two UEs, and all the UEs in the target group have the same CSI-RS configuration.
  • the target group may be the group A
  • the configuration information corresponding to the group A may be the configuration information a. Therefore, the base station may determine the configuration information a, and then in the first preset time-frequency resource region to the group A. UE sends the configuration information a.
  • the first preset time-frequency resource region may be on the PDSCH, the PDCCH, or the enhanced physical downlink control channel (English: Enhanced physical downlink control channel; In the EPDCCH, the embodiment of the present invention does not limit this.
  • the embodiment of the present invention uses the first preset time-frequency resource region on the PDSCH as an example for description.
  • the first preset time-frequency resource region is on the physical downlink shared channel (PDSCH), and the method further includes, before the first preset time-frequency resource region sends the configuration information to the UE in the target group, the method further includes: :
  • indication information Determining, by the base station, indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • the base station acquires a channel state information CSI radio network temporary identifier RNTI of the target group;
  • the base station uses the CSI-RNTI of the target group to scramble the indication information
  • the base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the base station may determine the indication information, obtain the CSI-RNTI of the target group, and then use the CSI-RNTI of the target group to scramble the indication information to obtain the scrambled indication information, and finally the second preset time frequency on the PDCCH.
  • the resource area sends the scrambled indication information to the UE in the target group, where the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the indication information is also used to indicate the modulation and coding mode of the UE.
  • the indication information may be the indication information Z.
  • the base station determines that the CSI-RNTI of the target group A may be ID-A, and the base station uses the ID-A pair indication.
  • the information Z is scrambled to obtain the scrambled indication information, and the scrambled indication information may be Z1. Therefore, the base station sends the second preset time-frequency resource region on the PDCCH to the UE in the target group.
  • the method further includes: the base station The CSI-RNTI bearer of the group is sent to the UE in the target group on the radio resource control RRC signaling.
  • the base station may encapsulate the CSI-RNTI of the target group in the RRC signaling, and then send the RRC signaling to the UE in the target group through the PDSCH.
  • the base station may send corresponding RRC signaling to the UE of each of the m groups, where the m groups include the target group; or, the base station may only be in the target group.
  • the UE sends the RRC signaling, which is not limited in this embodiment of the present invention.
  • the target group may be group A
  • the CSI-RNTI of the target group A may be ID-A
  • the base station may encapsulate the ID-A in the RRC signaling, and then go to the UE in the target group A through the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the base station is on the physical downlink control channel PDCCH.
  • the second preset time-frequency resource region sends the scrambled indication information to the UE in the target group, where the base station sends the second preset time-frequency resource region in the target time segment to the target group.
  • the UE sends the scrambled indication information, and the target time period corresponds to the target group.
  • the CSI-RNTIs of the m groups may be the same or different.
  • the base station may send the UEs to the UEs in different groups in the same time period.
  • the indication information of the corresponding CSI-RNTI scrambling may also be sent to the UEs in different groups in the same time period by using the corresponding CSI-RNTI scrambling indication information.
  • the CSI-RNTIs of the m groups are the same, If the base station transmits the indication information of the same CSI-RNTI scrambling to the UEs in different groups in the same time period, the UEs in the other groups except the target group in the m groups can also detect the indication.
  • each group may correspond to a time period, and the CSI-RNTI is only in the corresponding group within the corresponding time period.
  • the UE is valid, so as to avoid the situation that the configuration information is received incorrectly.
  • the base station may send configuration information to the UEs of the corresponding group according to the urgency of the configuration information, and the order in which the configuration information is sent may be positively correlated with the urgency.
  • the base station may send the scrambled indication information to the UE in the group in the second preset time-frequency resource region in the target time segment corresponding to the target group.
  • the time period corresponding to each group may be a transmission time interval (English: Transmission Time Interval; TTI for short), and the base station may reach the target in the second preset time-frequency resource region in the TTI corresponding to the target group.
  • the UE in the group sends the scrambled indication information.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the method further includes: the base station: the PDCCH A search space composed of a plurality of preset control channel elements CCE is determined as the group search space.
  • the search space on the PDCCH may include: a UE search space, a common search space, and a group search space, where the UE search space and the common search space are search spaces existing in the related art, and the group search space This is the newly added search space for this application.
  • the UE search space is used to carry the DCI sent by the base station to the UE, and the DCI located in the search space of the UE may be scrambled by the RNTI of the UE.
  • the UE may detect the corresponding DCI in the search space of the UE according to the RNTI of the UE;
  • the search space is used to carry the public DCI sent by the base station, and the DCI located in the common search space may be scrambled by using the common identifier of all UEs. Therefore, the UE may detect the corresponding DCI in the common search space according to the common identifier of all UEs.
  • the common identifier of all the UEs may include, but is not limited to, a paging identifier, a transport format identifier, an uplink power control identifier, and the like; the group search space is a newly added search space in the application, and the group search space is fixed on the PDCCH.
  • the control channel element (English: Control Channel Element; CCE for short) is used to carry the DCI sent by the base station to the group.
  • the DCI located in the group search space may be scrambled by the CSI-RNTI of the group.
  • the UE may detect the corresponding DCI in the group search space according to the CSI-RNTI of the group.
  • the second preset time-frequency resource region may be a time-frequency resource region in a common search space, or may be a time-frequency resource region in a group search space, where the second preset time-frequency resource region is used.
  • the base station may send multiple pre-PDCCHs on the PDCCH before the second preset time-frequency resource region on the PDCCH sends the scrambled indication information to the UE in the target group.
  • the search space formed by the CCE is determined to be a group search space, and then the base station transmits multiple pieces of information on the PDCCH by transmitting the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the PDCCH.
  • the value of the CSI-RNTI when the second preset time-frequency resource region is the time-frequency resource region in the common search space, the value of the CSI-RNTI may be FFF4-FFFC (hexadecimal number), when the second pre- When the time-frequency resource region is the time-frequency resource region in the group search space, the value of the CSI-RNTI may be 0000-FFFF (hexadecimal number).
  • the group search space may be set. Good to improve compatibility.
  • a method for transmitting configuration information comprising:
  • the target user equipment UE receives the configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and then, in the first preset time-frequency resource region, the target group
  • the target group includes at least two UEs, and the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the UE in the target group, and CSI of all UEs in the target group
  • the RS configuration is the same, and the target UE belongs to the target group;
  • the target UE receives the CSI-RS according to the configuration information, and performs channel estimation based on the received CSI-RS.
  • the target UE may receive the configuration information sent by the base station in the first preset time-frequency resource region, and then receive the CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS, for example, the target UE estimates the channel based on the CSI-RS. Status, etc.
  • the first preset time-frequency resource region is on the physical downlink shared channel (PDSCH), and before the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, the method further includes:
  • Radio resource control RRC signaling sent by the base station, where the RRC signaling carries a channel state information CSI radio network temporary identifier RNTI of the target group;
  • the target UE detects the scrambled indication information sent by the base station in the second preset time-frequency resource region on the physical downlink control channel PDCCH according to the CSI-RNTI of the target group, and the scrambled indication information is the base station. After the indication information is determined, the indication information is obtained by using the CSI-RNTI of the target group, and the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the target UE is based on the CSI of the target group.
  • - RNTI detecting the scrambled indication information sent by the base station in the second preset time-frequency resource region on the physical downlink control channel PDCCH, including:
  • the target UE detects the scrambled indication information in the second preset time-frequency resource region in the target time period according to the CSI-RNTI of the target group, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the method further includes: the target UE After the detection succeeds, the CSI-RNTI of the target group is marked with an invalid flag, and the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid.
  • the target UE when the CSI-RNTIs of the m groups are the same, the target UE successfully detects the indication information. Then, the CSI-RNTI of the target group may be marked with an invalid flag, where the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid, which may facilitate the use of the CSI-RNTI by other groups.
  • the target UE may delete or discard the CSI-RNTI of the target group, such that the CSI-RNTI of the target group is invalid for the target UE.
  • a base station comprising:
  • a first determining module configured to determine configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UE, the CSI-RS configurations of all UEs in the target group are the same;
  • the first sending module is configured to send the configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH, and the base station further includes:
  • a second determining module configured to determine indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • An acquiring module configured to acquire channel state information CSI radio network temporary identifier RNTI of the target group
  • a scrambling module configured to perform scrambling on the indication information by using a CSI-RNTI of the target group
  • the second sending module is configured to send the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the base station further includes: a third sending module, configured to send the CSI-RNTI of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • a third sending module configured to send the CSI-RNTI of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • the group served by the base station includes: m groups, m is an integer greater than or equal to 1, the target group is any one of m groups, and any two groups of m groups
  • the CSI-RNTI is different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the second sending module is configured to: at the target time The second preset time-frequency resource region in the segment sends the scrambled indication information to the UE in the target group, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the base station further includes: a third determining module, configured to determine a search space formed by the plurality of preset control channel elements CCE on the PDCCH as the group search space.
  • a third determining module configured to determine a search space formed by the plurality of preset control channel elements CCE on the PDCCH as the group search space.
  • a fourth aspect provides a target user equipment UE, where the target UE includes:
  • the first receiving module is configured to receive configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and the first preset time-frequency resource region is
  • the target group includes at least two UEs, and the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the UE in the target group, all UEs in the target group
  • the CSI-RS configuration is the same, and the target UE belongs to the target group;
  • an estimating module configured to receive the CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH
  • the target UE further includes:
  • a second receiving module configured to receive radio resource control RRC signaling sent by the base station, where the RRC signaling bearer Channel state information CSI radio network temporary identifier RNTI of the target group;
  • the detecting module is configured to detect, according to the CSI-RNTI of the target group, the indication information sent by the base station after the scrambling in the second preset time-frequency resource region on the physical downlink control channel PDCCH, where the indication information after the scrambling is After determining the indication information, the base station obtains the indication information by using the CSI-RNTI of the target group, and the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, the target group is any one of the m groups, and any two groups of the m groups
  • the CSI-RNTIs of the groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the detecting module is configured to use the target group according to the target group.
  • the CSI-RNTI of the group detects the scrambled indication information in the second preset time-frequency resource region in the target time period, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the target UE further includes: a marking module, configured to: after the detection succeeds, mark the CSI-RNTI of the target group by using an invalid flag, where the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid. .
  • a base station in a fifth aspect, includes: a processor and a transmitter, and the processor is coupled to the transmitter,
  • the processor is configured to determine configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UEs
  • the CSI-RS configurations of all UEs in the target group are the same;
  • the transmitter is configured to send the configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH, and the processor is further configured to:
  • the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • the indication information is scrambled by using a CSI-RNTI of the target group
  • the transmitter is further configured to send the scrambled indication information to the UE in the target group in a second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the transmitter is further configured to send the CSI-RNTI of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the transmitter is also used at the target time.
  • the second preset time-frequency resource region in the segment sends the scrambled indication information to the UE in the target group, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the processor is further configured to: determine, by using a plurality of preset control channel elements CCEs on the PDCCH, a search space as the group search space.
  • a target user equipment UE includes: a receiver and a processor, the processor is coupled to the receiver,
  • the receiver is configured to receive the configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and then, in the first preset time-frequency resource region, the target information
  • the target group includes at least two UEs, and the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the UE in the target group, where all UEs in the target group The CSI-RS configuration is the same, and the target UE belongs to the target group;
  • the processor is configured to receive a CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the first preset time-frequency resource region is on the physical downlink shared channel (PDSCH), and the receiver is further configured to receive the radio resource control RRC signaling sent by the base station, where the RRC signaling carries the target group.
  • RRC signaling sent by the base station, where the RRC signaling carries the target group.
  • the processor is configured to detect, according to the CSI-RNTI of the target group, the indication information sent by the base station after the scrambling in the second preset time-frequency resource region on the physical downlink control channel PDCCH, and the scrambled indication information After the base station determines the indication information, the CSI-RNTI of the target group is used to scramble the indication information, and the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the processor is further used according to the target.
  • the CSI-RNTI of the group detects the scrambled indication information in the second preset time-frequency resource region in the target time period, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the processor is further configured to: after the detection succeeds, mark the CSI-RNTI of the target group by using an invalid flag, where the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid.
  • the seventh aspect provides a configuration information transmission system, where the system includes: a base station and a target UE, where the base station is the base station according to the third aspect; and the target UE is the target UE according to the fourth aspect.
  • the eighth aspect provides a configuration information transmission system, where the system includes: a base station and a target UE, where the base station is the base station according to the fifth aspect; and the target UE is the target UE according to the sixth aspect.
  • the base station determines the configuration information corresponding to the target group, and sends the configuration information to the UE in the target group in the first preset time-frequency resource region. Since the base station sends the configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the solution is The problem of large signaling overhead in the related art is determined, and the effect of reducing signaling overhead is achieved.
  • FIG. 1 is a schematic diagram of an implementation environment involved in various embodiments of the present application.
  • FIG. 2 is a flowchart of a method for configuring a configuration information according to an embodiment of the present invention
  • FIG. 3 is a flowchart of another method for configuring a configuration information according to an embodiment of the present invention.
  • FIG. 5 is a block diagram of a base station according to an embodiment of the present invention.
  • FIG. 6 is a block diagram of another base station according to an embodiment of the present invention.
  • FIG. 7 is a block diagram of a target UE according to an embodiment of the present invention.
  • FIG. 8 is a block diagram of another target UE according to an embodiment of the present invention.
  • FIG. 9 is a block diagram of a base station according to an embodiment of the present invention.
  • FIG. 10 is a block diagram of a target UE according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of a configuration information transmission system according to an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of an implementation environment involved in various embodiments of the present application.
  • the implementation environment may include: a base station 01 and multiple UEs.
  • the base station 01 may send configuration information to multiple UEs to perform resource configuration on the multiple UEs.
  • the configuration information may be used to indicate a channel state information reference signal of the UE (English: Channel State Information-Reference Signal; CSI-RS) Configuration.
  • the CSI-RS configurations of some of the plurality of UEs are the same.
  • the base station 01 may group the multiple UEs according to the configuration information of the multiple UEs, and obtain m groups, each group including at least two UEs, and the CSI-RS configurations of all UEs in the same group are the same, where m is an integer greater than or equal to 1.
  • a plurality of UEs include: UE-021, UE-022, UE-023, UE-024, UE-025, UE-026, UE-027, UE-028, and UE-029.
  • CSI-RS configurations of UE-021, UE-022, and UE-023 are the same
  • the CSI-RS configurations of UE-024 and UE-025 are the same
  • the CSIs of UE-026, UE-027, UE-028, and UE-029 are the same.
  • the base station 01 may divide the UEs into three groups, and the three groups may be a group A, a group B, and a group C, where the group A includes: UE-021, UE- 022 and UE-023, group B includes: UE-024 and UE-025, and group C includes: UE-026, UE-027, UE-028, and UE-029.
  • the group identifier may be assigned to each group, and the group identifier may be a channel state information radio network temporary identifier (English: Channel State Information-Radio Network Temporary Identity; referred to as CSI-RNTI) ).
  • CSI-RNTI International Mobile Network Temporary Identity
  • the CSI-RNTI of the group A may be ID-A
  • the CSI-RNTI of the group B may be ID-B
  • the CSI-RNTI of the group C may be ID-C
  • the base station 01 may be the UE-021.
  • the UE-022 and the UE-023 deliver the ID-A, and the ID-B is sent to the UE-024 and the UE-025, and the ID-C is sent to the UE-026, the UE-027, the UE-028, and the UE-029.
  • ID-A, ID-B, and ID-C may be the same or different.
  • the base station 01 may determine configuration information corresponding to the target group (that is, configuration information of the UE in the target group), and then send configuration information to the UE in the target group in the first preset time-frequency resource region. Before the base station 01 sends the configuration information to the UE in the target group, the base station 01 may determine the indication information, acquire the CSI-RNTI of the target group, and adopt the target.
  • the CSI-RNTI of the group scrambles the indication information, and sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the PDCCH, where the indication information is used to indicate the first Presetting the location of the time-frequency resource region in the PDSCH, the modulation and coding mode of the target UE, etc., each UE in the target group may be in the second preset time-frequency resource region on the PDCCH according to the group identifier of the target group.
  • the base station 01 may determine the configuration information and the indication information corresponding to the group A, and use the ID-A to scramble the indication information, and the second preset time frequency on the PDCCH.
  • the resource region sends the scrambled indication information to the UE-021, the UE-022, and the UE-023 in the group A, and the UE-021 can detect the base station in the second preset time-frequency resource region on the PDCCH according to the ID-A.
  • the scrambled indication information is descrambled to obtain the indication information, and the configuration information corresponding to the target group is read from the first preset time-frequency resource region of the PDSCH according to the indication information.
  • UE-022 and UE-023 can also obtain corresponding configuration information.
  • UE-024 and UE-025 can obtain corresponding configuration information
  • UE-026, UE-027, UE-028, and UE-029 can obtain corresponding configuration information.
  • the base station 01 sends configuration information to the UE-021, UE-022, and UE-023, respectively, and uses the corresponding UE's wireless network temporary identifier.
  • RNTI Radio Network Temporary Identity
  • the base station 01 transmits configuration information and indication information using the ID-A1 scrambling to the UE-021, and transmits configuration information and indication information using ID-A2 scrambling to the UE-022, and transmits configuration information to the UE-023.
  • ID-A3 scrambling indication information, UE-021, UE-022, and UE-023 perform detection according to respective RNTIs, obtain corresponding indication information, and read respective configuration information according to corresponding indication information, thus,
  • the configuration information of the UE-021, the UE-022, and the UE-023 is the same, and the base station 01 needs to send three indication information and three identical configuration information, resulting in a large signaling overhead.
  • FIG. 2 is a flowchart of a method for transmitting configuration information according to an embodiment of the present invention.
  • the configuration information transmission method may be performed by the base station 01 in the implementation environment shown in FIG. 1, see FIG.
  • the configuration information transmission method may include:
  • Step 201 The base station determines configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UEs, and the target group
  • the CSI-RS configurations of all UEs are the same.
  • Step 202 The base station sends configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the base station determines configuration information corresponding to the target group, and sends configuration information to the UE in the target group in the first preset time-frequency resource region. Since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved, and the reduction is achieved. The effect of small signaling overhead.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH,
  • step 202 the method further includes:
  • indication information Determining, by the base station, indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • the base station uses the CSI-RNTI of the target group to scramble the indication information
  • the base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the method before the base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH, the method further includes:
  • the base station sends the CSI-RNTI of the target group to the UE in the target group on the radio resource control RRC signaling.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups.
  • the CSI-RNTI of any two of the m groups is different; or,
  • the scrambled indication information corresponding to all the groups in the m groups is time-divisionally transmitted, and the second pre-determination of the base station on the physical downlink control channel PDCCH
  • the time-frequency resource area is sent to the UE in the target group to send the scrambled indication information, including:
  • the base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region in the target time period, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in the common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space
  • the group search space is a search space on the PDCCH for carrying the downlink control information DCI sent by the base station to the group.
  • the method before the base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH, the method further includes:
  • the base station determines a search space composed of a plurality of preset control channel elements CCE on the PDCCH as a group search space.
  • the base station determines configuration information corresponding to the target group, and sends configuration information to the UE in the target group in the first preset time-frequency resource region. Since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved, and the reduction is achieved. The effect of small signaling overhead.
  • FIG. 3 is a flowchart of another method for transmitting configuration information according to an embodiment of the present invention.
  • the configuration information transmission method may be performed by a target UE in a target group in the implementation environment shown in FIG. Execution, referring to FIG. 3, the configuration information transmission method may include:
  • Step 301 The target user equipment UE receives the configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that after the base station determines the configuration information corresponding to the target group, the first preset time-frequency resource region is sent to the target group.
  • the target group includes at least two UEs, and the configuration information is used to indicate the channel state information reference signal CSI-RS configuration of the UE in the target group, and the CSI-RS configurations of all UEs in the target group are the same.
  • the target UE belongs to the target group.
  • Step 302 The target UE receives the CSI-RS according to the configuration information, and performs channel estimation based on the received CSI-RS.
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs the CSI-RS based on the received CSI-RS.
  • Channel estimation The configuration information is that after the base station determines the configuration information corresponding to the target group, the first preset time-frequency resource region is sent to the UE in the target group, and the target UE belongs to the target group. Since the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved. The effect of reducing signaling overhead.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH,
  • step 301 the method further includes:
  • the target UE receives the radio resource control RRC signaling sent by the base station, and the RRC signaling carries the channel state information CSI radio network temporary identifier RNTI of the target group;
  • the target UE detects the scrambled indication information sent by the base station in the second preset time-frequency resource region on the physical downlink control channel PDCCH according to the CSI-RNTI of the target group, and the scrambled indication information is after the base station determines the indication information.
  • the indication information is obtained by using the CSI-RNTI of the target group to scramble the indication information, and the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups.
  • the CSI-RNTI of any two of the m groups is different; or,
  • the scrambled indication information corresponding to all the groups in the m groups is time-divisionally transmitted, and the target UE is in accordance with the CSI-RNTI of the target group.
  • the second preset time-frequency resource region on the physical downlink control channel PDCCH detects the scrambled indication information sent by the base station, including:
  • the target UE detects the scrambled indication information in the second preset time-frequency resource region in the target time period according to the CSI-RNTI of the target group, and the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in the common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space
  • the group search space is a search space on the PDCCH for carrying the downlink control information DCI sent by the base station to the group.
  • the method further includes:
  • the target UE marks the CSI-RNTI of the target group by using an invalid flag, and the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid.
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs the CSI-RS based on the received CSI-RS.
  • the channel estimation the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, and the target UE belongs to the target group. Since the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved. The effect of reducing signaling overhead.
  • FIG. 4 is a flowchart of a method for transmitting a configuration information according to an embodiment of the present invention. This embodiment is described by using the configuration information transmission method in the implementation environment shown in FIG. Referring to FIG. 4, the configuration information transmission method may include:
  • Step 401 The base station determines configuration information of the multiple UEs, where the configuration information of the first UE is used to indicate CSI-RS configuration of the first UE, where the first UE is any one of the multiple UEs.
  • the configuration information may be semi-static configuration information.
  • the base station may be the base station 01 in the implementation environment shown in FIG. 1, and the multiple UEs may include UE-021, UE-022, UE-023, UE-024, UE-025 in the implementation environment shown in FIG.
  • the configuration information of the first UE is used to indicate the CSI-RS configuration of the first UE, where the first UE is any one of the multiple UEs.
  • the first UE may be the UE-021, and the configuration information of the UE-021 is used.
  • Step 402 The base station divides multiple UEs into m groups according to configuration information of multiple UEs, and each group includes at least two UEs.
  • the CSI-RS configurations of all UEs in the same group are the same, and m is greater than or An integer equal to 1.
  • configuration information of some UEs in multiple UEs may be the same.
  • some UEs in multiple UEs measure the same port (English: port), or some UEs in multiple UEs.
  • the beamformed (Chinese: beamforming) CSI-RS has the same weight (Chinese: weight). Therefore, the base station can divide multiple UEs into m groups according to the configuration information of multiple UEs, and all UEs in the same group.
  • the CSI-RS configuration is the same (that is, the configuration information of all UEs in the same group is the same), and m is an integer greater than or equal to 1.
  • each group may correspond to one configuration information, and the configuration information corresponding to the first group is used to indicate the CSI-RS configuration of the UE in the first group, and the first group
  • the embodiment of the present invention is not limited to any one of the m groups.
  • the base station 01 may divide the nine into three groups according to the configuration information of the nine UEs, and the three groups may be the group A, the group B, and the group C. Each group may correspond to one configuration information.
  • the configuration information corresponding to the group A may be the configuration information a
  • the configuration information corresponding to the group B may be the configuration information b
  • the configuration information corresponding to the group C may be the configuration information.
  • group A includes: UE-021, UE-022, and UE-023
  • group B includes: UE-024 and UE-025
  • group C includes: UE-026, UE-027, UE-028 And UE-029.
  • the configuration information a corresponding to the group A is used to indicate the CSI-RS configuration of the UE-021, the UE-022, and the UE-023, and the configuration information b corresponding to the group B is used to indicate the CSI-RS of the UE-024 and the UE-025.
  • the configuration information c corresponding to the group C is used to indicate the CSI-RS configuration of the UE-026, the UE-027, the UE-028, and the UE-029.
  • Step 403 The base station allocates a CSI-RNTI for each of the m groups.
  • the CSI-RNTI may be allocated for each of the m groups.
  • the base station 01 allocates a CSI-RNTI for the group A, a CSI-RNTI for the group B, and a CSI-RNTI for the group C, and the CSI-RNTI of the group A may be the ID-A, the CSI of the group B.
  • the RNTI may be an ID-B, and the CSI-RNTI of the group C may be an ID-C, which is not limited in this embodiment of the present invention.
  • the process of the CSI-RNTI allocated by the base station to the m groups may be referred to the base station in the related art.
  • the process of the RNTI is not described herein again.
  • the CSI-RNTIs of all the groups in the m groups may be the same, or the CSI-RNTIs of any two groups in the m groups are different, and the embodiment of the present invention is different. This is not limited.
  • the value of the CSI-RNTI can be reduced by allocating the same CSI-RNTI to all groups.
  • Step 404 The base station sends the CSI-RNTI of the target group to the UE in the target group by using the RRC signaling, where the target group is any one of the m groups, and the UE in the target group includes the target. UE.
  • the base station may encapsulate the CSI-RNTI of the target group in the RRC signaling, and then send the RRC signaling to the UE in the target group through the PDSCH.
  • the target group is any one of the m groups, and the UE in the target group includes the target UE.
  • the base station may send corresponding RRC signaling to the UE of each of the m groups, where the m groups include the target group; or, the base station may only be in the target group.
  • the UE sends the RRC signaling, which is not limited in this embodiment of the present invention.
  • the base station 01 encapsulates the ID-A in RRC signaling, and then sends an RRC letter to the UE-021, UE-022, and UE-023 in the target group A through the PDSCH. make.
  • Step 405 The target UE receives the RRC signaling sent by the base station.
  • the RRC signaling carries the CSI-RNTI of the target group.
  • the target UE may receive the RRC signaling sent by the base station, and process the RRC signaling to obtain the CSI-RNTI of the target group, where the target UE belongs to the target group. .
  • the target group may be the group A
  • the target UE may be the UE-021 in the group A. Therefore, that is, the UE-021 receives the RRC signaling sent by the base station 01, and processes the RRC signaling.
  • the CSI-RNTI of the target group is obtained, and the CSI-RNTI of the target group is ID-A.
  • the target UE may update the CSI-RNTI stored by the target group according to the CSI-RNTI of the target group. For example, if the UE-021 belongs to the group B and the stored CSI-RNTI is the ID-B, after the UE-021 obtains the ID-A, the target UE may update the previously stored ID-B according to the ID-A. When UE-021 belongs to group A.
  • Step 406 The base station determines configuration information corresponding to the target group, where the configuration information is used to indicate CSI-RS configuration of the UE in the target group.
  • each group of the m groups corresponds to one configuration information. Therefore, the base station can determine configuration information corresponding to the target group, and the configuration information corresponding to the target group is used to indicate the UE in the target group.
  • CSI-RS configuration The target group includes at least two UEs, and all the UEs in the target group have the same CSI-RS configuration.
  • the target group is the group A
  • the configuration information corresponding to the group A is the configuration information a. Therefore, the base station 01 can determine the configuration information a, and the configuration information a is used to indicate the UE-021, the UE-022, and the UE-023. CSI-RS configuration.
  • the base station may encapsulate the configuration information corresponding to the target group in the RRC signaling, and the first preset time-frequency resource on the PDSCH.
  • the area is sent to the UE in the target group, and the configuration information corresponding to the target group may be carried in the DCI, and the second preset time-frequency resource area on the PDCCH is sent to the UE in the target group, when the base station is in the PDSCH.
  • the base station needs to send the indication information to the UE in the target group in the second preset time-frequency resource region on the PDCCH, the indication information.
  • the base station encapsulates the configuration information corresponding to the target group in the RRC signaling as an example for description.
  • Step 407 The base station determines indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH.
  • the base station may determine indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH.
  • the indication information may be the indication information Z.
  • the base station may generate the indication information, and the specific implementation process of the base station to generate the indication information may refer to related technologies, and details are not repeatedly described herein.
  • Step 408 The base station acquires a CSI-RNTI of the target group.
  • the base station can acquire the CSI-RNTI of the target group.
  • the base station acquires the CSI-RNTI of the target group A, and the CSI-RNTI of the target group A may be ID-A.
  • Step 409 The base station uses the CSI-RNTI of the target group to scramble the indication information.
  • the indication information may be scrambled by using the CSI-RNTI of the target group to obtain the scrambled indication information.
  • the base station 01 scrambles the indication information Z by using the ID-A to obtain the scrambled indication information Z1.
  • Step 410 The base station sends the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the PDCCH.
  • the base station may encapsulate the scrambled indication information in the DCI, and send the scrambled indication information to the UE in the target group by using the second preset time-frequency resource region on the PDCCH.
  • the scrambled indication information is scrambled by the CSI-RNTI of the target group, but in the embodiment of the present invention, the CSI-RNTIs of the m groups may be the same or different, when the CSIs of the m groups - When the RNTI is different, the base station may send the indication information of the corresponding CSI-RNTI scrambling to the UEs in the different groups in the same time period, or may send the corresponding information to the UEs in different groups in different time periods.
  • the base station may send configuration information to the UEs of the corresponding group according to the urgency of the configuration information, and the order in which the configuration information is sent may be positively correlated with the urgency.
  • the step 410 may also be that the base station sends the scrambling to the UEs in the target group in the second preset time-frequency resource region in the target time segment.
  • the target time period corresponds to the target group.
  • the base station sends the scrambled indication information to the UE-021, the UE-022, and the UE-023 in the group A in the second preset time-frequency resource region in the target time period.
  • the time period corresponding to each group may be one TTI, and the base station may send the scrambled indication information to the UE in the target group in the second preset time-frequency resource region in the TTI corresponding to the target group.
  • the search space on the PDCCH may include: a UE search space, a common search space, and a group search space, where the UE search space and the common search space are search spaces existing in the related art, and the group search is empty. This is the newly added search space for this application.
  • the UE search space is used to carry the DCI sent by the base station to the UE, and the DCI located in the search space of the UE may be scrambled by the RNTI of the UE.
  • the UE may detect the corresponding DCI in the search space of the UE according to the RNTI of the UE;
  • the search space is used to carry the public DCI sent by the base station, and the DCI located in the common search space may be scrambled by using the common identifier of all UEs. Therefore, the UE may detect the corresponding DCI in the common search space according to the common identifier of all UEs.
  • the common identifier of all the UEs may include, but is not limited to, a paging identifier, a transport format identifier, an uplink power control identifier, and the like; the group search space is a newly added search space in the application, and the group search space is fixed on the PDCCH.
  • the DCI located in the group search space may be scrambled by the CSI-RNTI of the group, so the UE may be according to the CSI-RNTI of the group.
  • the corresponding DCI is detected in the group search space.
  • the second preset time-frequency resource region may be a time-frequency resource region in a common search space, or may be a time-frequency resource region in a group search space, where the second preset time-frequency resource region is used.
  • the base station may send multiple pre-PDCCHs on the PDCCH before the second preset time-frequency resource region on the PDCCH sends the scrambled indication information to the UE in the target group.
  • the search space formed by the CCE is determined to be a group search space, and then the base station transmits multiple pieces of information on the PDCCH by transmitting the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the PDCCH.
  • the value of the CSI-RNTI may be FFF4-FFFC (sixteen into The number of the CSI-RNTI may be 0000-FFFF (hexadecimal number), which is adopted by the embodiment of the present invention when the second preset time-frequency resource region is the time-frequency resource region in the group search space. Setting up a group search space can improve compatibility.
  • Step 411 The base station sends configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the step is: the base station sends the configuration information to the UE in the target group in the first preset time-frequency resource region on the PDSCH.
  • the step is: the base station sends the configuration information to the UE in the target group in the first preset time-frequency resource region on the PDCCH.
  • the base station 01 sends configuration information a to the UE-021, UE-022, and UE-023 in the target group A in the first preset time-frequency resource region.
  • Step 412 The target UE detects the scrambled indication information sent by the base station in the second preset time-frequency resource region on the PDCCH.
  • the indication information after the scrambling is obtained by using the CSI-RNTI of the target group to scramble the indication information, and the indication information may be used to indicate that the first preset time-frequency resource region is in the PDSCH. Position, modulation coding method of the target UE, and the like.
  • the target UE may detect the scrambled indication information on the second preset time-frequency resource region on the PDCCH according to the CSI-RNTI of the target group.
  • the target UE may detect the scrambled second target time-frequency resource region in the target time segment corresponding to the target group according to the CSI-RNTI of the target group.
  • the indication information is not limited in this embodiment of the present invention.
  • the target UE may be the UE-021, and the UE-021 may detect the scrambled second preset time-frequency resource region in the target time segment corresponding to the target group A according to the CSI-RNTI of the target group. Indicates information Z1.
  • Step 413 The target UE receives the configuration information sent by the base station in the first preset time-frequency resource region.
  • the configuration information is that after the base station determines the configuration information corresponding to the target group, the first preset time-frequency resource area is
  • the target group includes at least two UEs, and the configuration information is used to indicate the CSI-RS configuration of the UEs in the target group.
  • the CSI-RS configurations of all the UEs in the target group are the same.
  • the UE belongs to the target group.
  • the descrambled indication information may be descrambled to obtain the indication information, and the configuration information sent by the base station is received in the first preset time-frequency resource region according to the indication information.
  • the UE-021 receives the configuration information a sent by the base station 01 in the first preset time-frequency resource region.
  • the target UE may mark the CSI-RNTI of the target group by using an invalid flag, where the invalid flag is used to indicate the target group.
  • the CSI-RNTI is invalid, which can facilitate the use of the CSI-RNTI by other groups.
  • the target UE may delete or discard the CSI-RNTI of the target group, such that the CSI-RNTI of the target group is invalid for the target UE.
  • Step 414 The target UE receives the CSI-RS according to the configuration information, and performs channel estimation based on the received CSI-RS.
  • the target UE may receive the CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the process of the channel estimation by the target UE based on the received CSI-RS refer to the related art, and details are not described herein again.
  • the first preset time-frequency resource region may be a time-frequency resource region on the PDSCH, or may be a time-frequency resource region on the PDCCH, where the first preset time-frequency resource region is a time-frequency resource on the PDSCH.
  • the configuration information transmission between the base station and the UE may be implemented according to the foregoing steps 401 to 414; when the first preset time-frequency resource area is the time-frequency resource area on the PDCCH, the steps 401 to 406 and the steps may be followed. 413 and step 414, the configuration information transmission between the base station and the UE is implemented.
  • the base station needs to encapsulate the configuration information corresponding to the target group in the DCI, and perform scrambling using the CSI-RNTI of the target group, and the target UE
  • the PDCCH may be blindly detected according to the CSI-RNTI of the target group, and the configuration information corresponding to the target group is obtained, which is not repeatedly described herein.
  • the indication information is used in the PDCCH transmission as an example.
  • the indication information may also be in an enhanced physical downlink control channel (English: Enhanced physical downlink control channel; The above-mentioned transmission is not limited in this embodiment of the present invention.
  • the base station determines configuration information corresponding to the target group, and sends configuration information to the UE in the target group in the first preset time-frequency resource region. Since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved, and the reduction is achieved. The effect of small signaling overhead.
  • MIMO Multiple-Input Multiple-Out-put
  • the base station in the related art needs to send an RRC signaling that carries the semi-static configuration information to each UE, which causes a large signaling overhead.
  • the first preset time-frequency resource region is directed to a group. All UEs in the middle send semi-static configuration information, which reduces signaling overhead.
  • the RRC signaling carried by the base station to the UE is not included in the RRC signaling, and includes: CSI process (Chinese: CSI process) and CSI-RS resource configuration (Chinese: CSI-RS resource)
  • the CSI process is used to indicate the CSI-RS resource configuration
  • the CSI-RS resource configuration includes the number of CSI-RS ports, the CSI-RS update period, the CSI-RS transmission time, and the physical resources occupied by the CSI-RS. Piece. It is assumed that the CSI process requires 16 bits (Chinese: bits), the CSI-RS resource configuration requires 26 bits, and the base station serves 30 UEs.
  • the base station may divide the 30 UEs into 5 groups, and each group includes 6 UEs.
  • the base station 500 can be the base station 01 in the implementation environment shown in FIG. 1 for performing the partial methods provided by the embodiment shown in FIG. 4 and all the methods provided by the embodiment shown in FIG. 2.
  • the base station 500 can include:
  • the first determining module 510 is configured to determine configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UEs.
  • the CSI-RS configurations of all UEs in the target group are the same.
  • the first sending module 520 is configured to send configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the base station since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the related information is solved.
  • the problem of large signaling overhead in the technology achieves the effect of reducing signaling overhead.
  • the base station 600 can be the base station 01 in the implementation environment shown in FIG. 1 for performing the partial methods provided by the embodiment shown in FIG. 4 and all the methods provided by the embodiment shown in FIG. 2.
  • the base station 600 can include:
  • the first determining module 610 is configured to determine configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UEs.
  • the CSI-RS configurations of all UEs in the target group are the same;
  • the first sending module 620 is configured to send configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH
  • the base station 600 further includes:
  • a second determining module 630 configured to determine indication information, where the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • An obtaining module 640 configured to acquire a channel state information CSI radio network temporary identifier RNTI of the target group
  • the scrambling module 650 is configured to scramble the indication information by using a CSI-RNTI of the target group.
  • the second sending module 660 is configured to send the scrambled indication information to the UE in the target group in the second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the base station 600 further includes: a third sending module 670, configured to send the CSI-RNTI bearer of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • a third sending module 670 configured to send the CSI-RNTI bearer of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • the group served by the base station includes: m groups, m is an integer greater than or equal to 1, the target group is any one of m groups, and any two groups of m groups
  • the CSI-RNTI is different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in a time-sharing manner, and the second sending module 660 is configured to: at the target time The second preset time-frequency resource region in the segment sends the scrambled indication information to the UE in the target group, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space, where the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space
  • the group search space is a search space on the PDCCH for carrying the downlink control information DCI sent by the base station to the group.
  • the base station may further include: a third determining module (not shown in FIG. 6), configured to determine, by using a plurality of preset control channel elements CCEs on the PDCCH, a search space as a group search space.
  • a third determining module (not shown in FIG. 6), configured to determine, by using a plurality of preset control channel elements CCEs on the PDCCH, a search space as a group search space.
  • the base station since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the related information is solved.
  • the problem of large signaling overhead in the technology achieves the effect of reducing signaling overhead.
  • FIG. 7 is a block diagram of a target UE-700 according to an embodiment of the present invention.
  • the target UE-700 may be the UE in the target group in the implementation environment shown in FIG. 1 for performing part of the methods provided by the embodiment shown in FIG. 4 and all the methods provided by the embodiment shown in FIG. Referring to FIG. 7, the target UE-700 may include:
  • the first receiving module 710 is configured to receive configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and then, in the first preset time-frequency resource region, the target group
  • the target group includes at least two UEs, and the configuration information is used to indicate the channel state information reference signal CSI-RS configuration of the UE in the target group, and the CSI-RS configuration of all UEs in the target group.
  • the target UE belongs to the target group.
  • the estimation module 720 is configured to receive the CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs channel estimation based on the received CSI-RS.
  • the configuration information is sent to the UE in the target group in the first preset time-frequency resource region, and the target UE belongs to the target group. Since the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved. The effect of reducing signaling overhead.
  • FIG. 8 is a block diagram of another target UE-800 provided by an embodiment of the present invention.
  • the target UE-800 may be the UE in the target group in the implementation environment shown in FIG. 1 for performing part of the methods provided by the embodiment shown in FIG. 4 and all the methods provided by the embodiment shown in FIG. Referring to FIG. 8, the target UE-800 may include:
  • the first receiving module 810 is configured to receive configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and then, in the first preset time-frequency resource region, the target group
  • the target group includes at least two UEs, and the configuration information is used to indicate the channel state information reference signal CSI-RS configuration of the UE in the target group, and the CSI-RS configuration of all UEs in the target group.
  • the target UE belongs to the target group.
  • the estimating module 820 is configured to receive the CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the target UE-800 further includes: a second receiving module 830, configured to receive radio resource control RRC signaling sent by the base station, and RRC signaling Channel state information carrying a target group CSI radio network temporary identifier RNTI;
  • a second receiving module 830 configured to receive radio resource control RRC signaling sent by the base station, and RRC signaling Channel state information carrying a target group CSI radio network temporary identifier RNTI;
  • the detecting module 840 is configured to detect the scrambled indication information sent by the base station in the second preset time-frequency resource region on the physical downlink control channel PDCCH according to the CSI-RNTI of the target group, where the scrambled indication information is a base station After the indication information is determined, the CSI-RNTI of the target group is used to scramble the indication information, and the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, m is an integer greater than or equal to 1, the target group is any one of m groups, and any two groups of m groups
  • the CSI-RNTI is different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the detecting module 840 is configured to use the CSI according to the target group.
  • - RNTI detecting the scrambled indication information in the second preset time-frequency resource region in the target time period, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in the common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space
  • the group search space is a search space on the PDCCH for carrying the downlink control information DCI sent by the base station to the group.
  • the target UE-800 further includes: a marking module 850, configured to: after the detection succeeds, mark the CSI-RNTI of the target group by using an invalid flag, where the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid. .
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs channel estimation based on the received CSI-RS.
  • the configuration information is sent to the UE in the target group in the first preset time-frequency resource region, and the target UE belongs to the target group. Since the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved. The effect of reducing signaling overhead.
  • the configuration information transmission device (including the base station and the target UE) provided in the foregoing embodiment is only illustrated by the division of the foregoing functional modules when transmitting configuration information. In actual applications, the foregoing functions may be performed as needed. The assignment is done by different functional modules, ie the internal structure of the device is divided into different functional modules to perform all or part of the functions described above.
  • the configuration information transmission device and the configuration information transmission provided by the foregoing embodiments The embodiment of the input method belongs to the same concept, and the specific implementation process is detailed in the method embodiment, and details are not described herein again.
  • the base station 900 can be the base station 01 in the implementation environment shown in FIG. 1 for performing the partial methods provided by the embodiment shown in FIG. 4 and all the methods provided by the embodiment shown in FIG. 2.
  • the base station 900 can include a processor 910 and a transmitter 920 coupled to the transmitter 920.
  • the processor 910 is configured to determine configuration information corresponding to the target group, where the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the user equipment UE in the target group, where the target group includes at least two UE, the CSI-RS configurations of all UEs in the target group are the same;
  • the transmitter 920 is configured to send the configuration information to the UE in the target group in the first preset time-frequency resource region.
  • the base station since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the related information is solved.
  • the problem of large signaling overhead in the technology achieves the effect of reducing signaling overhead.
  • the first preset time-frequency resource region is on the physical downlink shared channel PDSCH, and the processor 910 is further configured to:
  • the indication information is used to indicate a location of the first preset time-frequency resource region in the PDSCH;
  • the indication information is scrambled by using a CSI-RNTI of the target group
  • the transmitter 920 is further configured to send the scrambled indication information to the UE in the target group in a second preset time-frequency resource region on the physical downlink control channel PDCCH.
  • the transmitter 920 is further configured to send the CSI-RNTI bearer of the target group to the UE in the target group by using the radio resource control RRC signaling.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in time, and the transmitter 920 is also used in the target.
  • the second preset time-frequency resource region in the time segment sends the scrambled indication information to the UE in the target group, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the processor 910 is further configured to: determine, by using a plurality of preset control channel elements CCEs on the PDCCH, a search space as the group search space.
  • the base station since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the related information is solved.
  • the problem of large signaling overhead in the technology achieves the effect of reducing signaling overhead.
  • FIG. 10 is a block diagram of a target UE-1000 according to an embodiment of the present invention.
  • the target UE-1000 The UE in the target group in the implementation environment shown in FIG. 1 may be used to execute some of the methods provided in the embodiment shown in FIG. 4 and all the methods provided in the embodiment shown in FIG. Referring to FIG. 10, the target UE-1000 may include a receiver 1010 and a processor 1020.
  • the receiver 1010 is configured to receive the configuration information sent by the base station in the first preset time-frequency resource region, where the configuration information is that the base station determines the configuration information corresponding to the target group, and then, in the first preset time-frequency resource region,
  • the target group includes at least two UEs, and the configuration information is used to indicate a channel state information reference signal CSI-RS configuration of the UE in the target group, all UEs in the target group
  • the CSI-RS configuration is the same, and the target UE belongs to the target group.
  • the processor 1020 is configured to receive a CSI-RS according to the configuration information, and perform channel estimation based on the received CSI-RS.
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs channel estimation based on the CSI-RS, and the configuration information.
  • the base station determines the configuration information corresponding to the target group
  • the first preset time-frequency resource region is sent to the UE in the target group, and the target UE belongs to the target group. Since the configuration information is sent by the base station to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small, and the problem of large signaling overhead in the related art is solved. The effect of reducing signaling overhead.
  • the first preset time-frequency resource region is on the physical downlink shared channel (PDSCH), and the receiver 1010 is further configured to receive the radio resource control RRC signaling sent by the base station, where the RRC signaling carries the target group.
  • RRC signaling sent by the base station, where the RRC signaling carries the target group.
  • the processor 1020 is configured to detect, according to the CSI-RNTI of the target group, the indication information sent by the base station after the scrambling in the second preset time-frequency resource region on the physical downlink control channel PDCCH, and the scrambled indication The information is obtained after the base station determines the indication information, and uses the CSI-RNTI of the target group to scramble the indication information, where the indication information is used to indicate the location of the first preset time-frequency resource region in the PDSCH.
  • the group served by the base station includes: m groups, where m is an integer greater than or equal to 1, and the target group is any one of the m groups, where the m groups are The CSI-RNTIs of any two groups are different; or, the CSI-RNTIs of all the groups in the m groups are the same;
  • the scrambled indication information corresponding to all the groups in the m groups is sent in a time-sharing manner, and the processor 1020 is further configured to The CSI-RNTI of the target group detects the scrambled indication information in the second preset time-frequency resource region in the target time period, where the target time segment corresponds to the target group.
  • the second preset time-frequency resource region is a time-frequency resource region in a common search space.
  • the common search space is a search space on the PDCCH for carrying the common downlink control information DCI sent by the base station.
  • the second preset time-frequency resource region is a time-frequency resource region in the group search space, where the group search space is a search for downlink control information DCI sent by the base station to the group on the PDCCH. space.
  • the processor 1020 is further configured to: after the detection succeeds, mark the CSI-RNTI of the target group by using an invalid flag, where the invalid flag is used to indicate that the CSI-RNTI of the target group is invalid.
  • the target UE receives the configuration information sent by the base station in the first preset time-frequency resource region, receives the CSI-RS according to the configuration information, and performs channel estimation based on the CSI-RS, and the configuration information.
  • the base station determines the configuration information corresponding to the target group
  • the first preset time-frequency resource region is sent to the UE in the target group, and the target UE belongs to the target group.
  • the configuration information is that the base station is in the first preset time-frequency resource region to the UE in the target group. Therefore, the signaling overhead of transmitting configuration information is small, which solves the problem of large signaling overhead in the related art, and achieves the effect of reducing signaling overhead.
  • FIG. 11 is a schematic structural diagram of a configuration information transmission system 1100 according to an embodiment of the present invention.
  • the configuration information transmission system 1100 may include a base station 1110 and a target UE-1120.
  • the base station 1110 is the base station shown in FIG. 5 or FIG. 6;
  • the target UE-1120 is the target UE shown in FIG. 7 or FIG. 8;
  • the base station 1110 is a base station shown by 9; the target UE-1120 is the target UE shown in FIG.
  • the base station since the base station sends configuration information to the UE in the target group in the first preset time-frequency resource region, the signaling overhead of transmitting the configuration information is small.
  • the problem of large signaling overhead in the related art is solved, and the effect of reducing signaling overhead is achieved.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本申请公开一种配置信息传输方法、装置及系统，属于通信技术领域。该方法包括：基站确定目标群组对应的配置信息，配置信息用于指示目标群组中的UE的CSI-RS配置，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同；基站在第一预设时频资源区域向目标群组中的UE发送配置信息。本申请解决了信令开销较大的问题，达到了减小信令开销的效果。本申请用于配置信息传输。

Description

配置信息传输方法、装置及系统
本申请要求于2016年6月21日提交中国专利局、申请号为201610451932.7、发明名称为“配置信息传输方法、装置及系统”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，特别涉及一种配置信息传输方法、装置及系统。
背景技术
长期演进(英文：Long Term Evolution；简称：LTE)通信系统中可以包括用户设备(英文：User Equipment；简称：UE)和为UE服务的基站。基站可以通过向UE发送配置信息来对UE进行资源配置。
相关技术中，基站可以将配置信息封装在下行控制信息(Downlink Control Information；简称：DCI)中，通过物理下行控制信道(英文：Physical Downlink Control Channel；简称：PDCCH)向UE发送配置信息，也可以将配置信息封装在无线资源控制(Radio Resource Control；简称：RRC)信令中，通过物理下行共享信道(Physical Downlink Shared Channel；简称：PDSCH)向UE发送配置信息。
在实现本申请的过程中，发明人发现相关技术至少存在以下问题：当基站服务的UE的数量较多时，基站需要分别向每个UE发送配置信息来对每个UE进行资源配置，而如果基站服务的UE中部分UE的配置信息是相同的，基站需要分别向每个UE发送相同的资源配置信息，导致信令开销较大。
发明内容
为了解决相关技术中信令开销较大的问题，本发明实施例提供了一种配置信息传输方法、装置及系统。所述技术方案如下：
第一方面，提供了一种配置信息传输方法，该方法包括：
基站确定目标群组对应的配置信息，该配置信息用于指示该目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，该目标群组包括至少两个UE，该目标群组中所有UE的CSI-RS配置相同；
该基站在第一预设时频资源区域向该目标群组中的UE发送该配置信息。
在本发明实施例中，每个群组对应一个配置信息，因此，基站可以确定目标群组对应的配置信息，然后在第一预设时频资源区域向该目标群组中的UE发送该配置信息，目标群组对应的配置信息用于指示目标群组中的UE的CSI-RS配置。其中，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同。
示例地，目标群组可以为群组A，群组A对应的配置信息可以为配置信息a，因此，基站可以确定配置信息a，然后在第一预设时频资源区域向该群组A中的UE发送该配置信息 a。
需要说明的是，在本发明实施例中，第一预设时频资源区域可以在PDSCH上，也可以在PDCCH上，还可以在增强的物理下行控制信道(英文：Enhancedphysical downlink control channel；简称：EPDCCH)上，本发明实施例对此不作限定，本发明实施例以第一预设时频资源区域在PDSCH上为例进行说明。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该基站在第一预设时频资源区域向该目标群组中的UE发送该配置信息之前，该方法还包括：
该基站确定指示信息，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置；
该基站获取该目标群组的信道状态信息CSI无线网络临时标识RNTI；
该基站采用该目标群组的CSI-RNTI对该指示信息进行加扰；
该基站在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息。
基站可以确定指示信息，获取目标群组的CSI-RNTI，然后采用目标群组的CSI-RNTI对该指示信息进行加扰得到加扰后的指示信息，最后在PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的指示信息，指示信息用于指示第一预设时频资源区域在PDSCH中的位置。
其中，指示信息还用于指示UE的调制编码方式等，示例地，该指示信息可以为指示信息Z，基站确定目标群组A的CSI-RNTI可以为ID-A，基站采用ID-A对指示信息Z进行加扰，得到加扰后的指示信息，该加扰后的指示信息可以为Z1，因此，基站在PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的指示信息Z1。
可选地，该基站在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息之前，该方法还包括：该基站将该目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至该目标群组中的UE。
基站可以将目标群组的CSI-RNTI封装在RRC信令中，然后通过PDSCH向目标群组中的UE发送RRC信令。
在本发明实施例中，基站可以向m个群组中的每个群组的UE发送相应的RRC信令，该m个群组包括目标群组；或者，基站可以只向目标群组中的UE发送RRC信令，本发明实施例对此不作限定。
示例地，目标群组可以为群组A，目标群组A的CSI-RNTI可以为ID-A，基站可以将ID-A封装在RRC信令中，然后通过PDSCH向目标群组A中的UE发送RRC信令。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该基站在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息，包括：该基站在目标时间段内的该第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息，该目标时间段与该目标群组对应。
在本发明实施例中，m个群组的CSI-RNTI可以相同，也可以不同，当m个群组的CSI-RNTI不同时，基站可以在同一时间段内向不同的群组中的UE发送采用相应的CSI-RNTI加扰的指示信息，也可以在同一时间段内向不同的群组中的UE发送采用相应的CSI-RNTI加扰的指示信息，当m个群组的CSI-RNTI相同时，如果基站在同一时间段内向不同的群组中的UE发送采用同一个CSI-RNTI加扰的指示信息，m个群组中除目标群组以外的其他群组中的UE也能检测到该指示信息，导致配置信息接收错误，因此，当m个群组的CSI-RNTI相同时，每个群组可以对应一个时间段，该CSI-RNTI只在相应的时间段内对相应的群组中的UE有效，这样可以避免配置信息接收错误的情况。其中，基站在向各个群组中的UE发送配置信息时，可以根据配置信息的紧急程度对相应群组的UE发送配置信息，配置信息的发送顺序可以与紧急程度正相关。
在本发明实施例中，基站可以在目标群组对应的目标时间段内的第二预设时频资源区域向群组中的UE发送加扰后的指示信息。示例地，每个群组对应的时间段可以为一个传输时间间隔(英文：Transmission Time Interval；简称：TTI)，基站可以在目标群组对应的TTI内的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该基站在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息之前，该方法还包括：该基站将该PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为该群组搜索空间。
在本发明实施例中，PDCCH上的搜索空间可以包括：UE搜索空间、公共搜索空间和群组搜索空间，其中，UE搜索空间和公共搜索空间是相关技术中存在的搜索空间，群组搜索空间是本申请新增加的搜索空间。UE搜索空间用于承载基站向UE发送的DCI，位于UE搜索空间中的DCI可以采用UE的RNTI加扰，因此，UE可以根据UE的RNTI，在该UE搜索空间中检测到相应的DCI；公共搜索空间用于承载基站发送的公共DCI，位于公共搜索空间中的DCI可以采用所有UE的共有标识加扰，因此，UE可以根据所有UE的共有标识，在该公共搜索空间中检测到相应的DCI，其中，所有UE的共有标识可以包括但不限于：寻呼标识、传输格式标识、上行功率控制标识等；群组搜索空间是本申请中新增加的一个搜索空间，群组搜索空间固定在PDCCH的某些控制信道元素(英文：Control Channel Element；简称：CCE)上，用于承载基站向群组发送的DCI，位于群组搜索空间中的DCI可以采用群组的CSI-RNTI加扰，因此，UE可以根据群组的CSI-RNTI，在该群组搜索空间中检测到相应的DCI。在本发明实施例中，第二预设时频资源区域可以为公共搜索空间中的时频资源区域，也可以为群组搜索空间中的时频资源区域，当第二预设时频资源区域为群组搜索空间中的时频资源区域时，基站在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息之前，可以将PDCCH上的多个预设CCE所组成的搜索空间确定为群组搜索空间，然后通过在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，基站将PDCCH上的多个预设CCE所组成的搜索空间确定为群组搜索空间的过程可以参考相关技术，本发明实施例对此不作限定。其中，根据相关技术的协议中 RNTI的预留值，当第二预设时频资源区域为公共搜索空间中的时频资源区域时，CSI-RNTI的取值可以为FFF4-FFFC(十六进制数)，当第二预设时频资源区域为群组搜索空间中的时频资源区域时，CSI-RNTI的取值可以为0000-FFFF(十六进制数)，本发明实施例通过设置群组搜索空间，可以很好的提高兼容性。
第二方面，提供一种配置信息传输方法，该方法包括：
目标用户设备UE在第一预设时频资源区域接收基站发送的配置信息，该配置信息是该基站确定目标群组对应的配置信息后，在第一预设时频资源区域向该目标群组中的UE发送的，该目标群组包括至少两个UE，该配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，该目标群组中的所有UE的CSI-RS配置相同，该目标UE属于该目标群组；
该目标UE根据该配置信息接收CSI-RS，并基于接收到的该CSI-RS进行信道估计。
目标UE可以在第一预设时频资源区域接收基站发送的配置信息，然后根据配置信息接收CSI-RS，基于收到的CSI-RS进行信道估计，比如，目标UE基于CSI-RS估计信道的状态等。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该目标UE在第一预设时频资源区域接收基站发送的配置信息之前，该方法还包括：
该目标UE接收该基站发送的无线资源控制RRC信令，该RRC信令承载有该目标群组的信道状态信息CSI无线网络临时标识RNTI；
该目标UE根据该目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，加扰后的该指示信息是该基站确定指示信息后，采用该目标群组的CSI-RNTI对该指示信息进行加扰得到的，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该目标UE根据该目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测该基站发送的加扰后的指示信息，包括：
该目标UE根据该目标群组的CSI-RNTI，在目标时间段内的该第二预设时频资源区域检测加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该目标UE根据该目标群组的CSI-RNTI，在目标时间段内的该第二预设时频资源区域检测加扰后的该指示信息之后，该方法还包括：该目标UE在检测成功之后，采用无效标记对该目标群组的CSI-RNTI进行标记，该无效标记用于指示该目标群组的CSI-RNTI无效。
在本发明实施例中，当m个群组的CSI-RNTI相同时，目标UE在对指示信息检测成功 之后，可以采用无效标记对目标群组的CSI-RNTI进行标记，无效标记用于指示目标群组的CSI-RNTI无效，这样可以便于其他群组使用该CSI-RNTI。可选地，目标UE可以将目标群组的CSI-RNTI删除或者丢弃，使得目标群组的CSI-RNTI对于目标UE无效。
第三方面，提供一种基站，该基站包括：
第一确定模块，用于确定目标群组对应的配置信息，该配置信息用于指示该目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，该目标群组包括至少两个UE，该目标群组中所有UE的CSI-RS配置相同；
第一发送模块，用于在第一预设时频资源区域向该目标群组中的UE发送该配置信息。可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该基站还包括：
第二确定模块，用于确定指示信息，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置；
获取模块，用于获取该目标群组的信道状态信息CSI无线网络临时标识RNTI；
加扰模块，用于采用该目标群组的CSI-RNTI对该指示信息进行加扰；
第二发送模块，用于在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息。
可选地，该基站还包括：第三发送模块，用于将该目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至该目标群组中的UE。
可选地，基站服务的群组包括：m个群组，m为大于或者等于1的整数，目标群组为m个群组中的任意一个群组，m个群组中任意两个群组的CSI-RNTI不同；或者，m个群组中的所有群组的CSI-RNTI相同；
当m个群组中的所有群组的CSI-RNTI相同时，m个群组中的所有群组对应的加扰后的指示信息分时发送，该第二发送模块，用于：在目标时间段内的该第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该基站还包括：第三确定模块，用于将该PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为该群组搜索空间。
第四方面，提供一种目标用户设备UE，该目标UE包括：
第一接收模块，用于在第一预设时频资源区域接收基站发送的配置信息，该配置信息是该基站确定目标群组对应的配置信息后，在第一预设时频资源区域向该目标群组中的UE发送的，该目标群组包括至少两个UE，该配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，该目标群组中的所有UE的CSI-RS配置相同，该目标UE属于该目标群组；
估计模块，用于根据该配置信息接收CSI-RS，并基于接收到的该CSI-RS进行信道估计。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该目标UE还包括：
第二接收模块，用于接收该基站发送的无线资源控制RRC信令，该RRC信令承载有 该目标群组的信道状态信息CSI无线网络临时标识RNTI；
检测模块，用于根据该目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测该基站发送加扰后的指示信息，加扰后的该指示信息是该基站确定指示信息后，采用该目标群组的CSI-RNTI对该指示信息进行加扰得到的，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置。
该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该检测模块，用于根据该目标群组的CSI-RNTI，在目标时间段内的该第二预设时频资源区域检测加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该目标UE还包括：标记模块，用于在检测成功之后，采用无效标记对该目标群组的CSI-RNTI进行标记，该无效标记用于指示该目标群组的CSI-RNTI无效。
第五方面，提供一种基站，该基站包括：处理器和发射机，处理器与发射机耦合，
该处理器，用于确定目标群组对应的配置信息，该配置信息用于指示该目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，该目标群组包括至少两个UE，该目标群组中所有UE的CSI-RS配置相同；
该发射机，用于在第一预设时频资源区域向该目标群组中的UE发送该配置信息。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该处理器，还用于：
确定指示信息，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置；
获取该目标群组的信道状态信息CSI无线网络临时标识RNTI；
采用该目标群组的CSI-RNTI对该指示信息进行加扰；
该发射机，还用于在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息。
可选地，该发射机，还用于将该目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至该目标群组中的UE。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该发射机，还用于在目标时间段内的该第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该处理器还用于：将该PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为该群组搜索空间。
第六方面，提供一种目标用户设备UE，该目标UE包括：接收机和处理器，该处理器与该接收机耦合，
该接收机，用于在第一预设时频资源区域接收基站发送的配置信息，该配置信息是该基站确定目标群组对应的配置信息后，在第一预设时频资源区域向该目标群组中的UE发送的，该目标群组包括至少两个UE，该配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，该目标群组中的所有UE的CSI-RS配置相同，该目标UE属于该目标群组；
该处理器，用于根据配置信息接收CSI-RS，并基于收到的CSI-RS进行信道估计。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该接收机，还用于接收该基站发送的无线资源控制RRC信令，该RRC信令承载有该目标群组的信道状态信息CSI无线网络临时标识RNTI；
该处理器，用于根据该目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测该基站发送加扰后的指示信息，加扰后的该指示信息是该基站确定指示信息后，采用该目标群组的CSI-RNTI对该指示信息进行加扰得到的，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该处理器，还用于根据该目标群组的CSI-RNTI，在目标时间段内的该第二预设时频资源区域检测加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该处理器，还用于在检测成功之后，采用无效标记对该目标群组的CSI-RNTI进行标记，该无效标记用于指示该目标群组的CSI-RNTI无效。
第七方面，提供一种配置信息传输系统，该系统包括：基站和目标UE，该基站为第三方面所述的基站；该目标UE为第四方面所述的目标UE。
第八方面，提供一种配置信息传输系统，该系统包括：基站和目标UE，该基站为第五方面所述的基站；该目标UE为第六方面所述的目标UE。
本发明实施例提供的技术方案带来的有益效果是：
本发明实施例提供的配置信息传输方法、装置及系统，基站确定目标群组对应的配置信息，并在第一预设时频资源区域向目标群组中的UE发送配置信息。由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解 决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
附图说明
图1是本申请各个实施例所涉及的一种实施环境的示意图；
图2是本发明实施例提供的一种配置信息传输方法的方法流程图；
图3是本发明实施例提供的另一种配置信息传输方法的方法流程图；
图4是本发明实施例提供的再一种配置信息传输方法的方法流程图；
图5是本发明实施例提供的一种基站的框图；
图6是本发明实施例提供的另一种基站的框图；
图7是本发明实施例提供的一种目标UE的框图；
图8是本发明实施例提供的另一种目标UE的框图；
图9是本发明实施例提供的一种基站的框图；
图10是本发明实施例提供的一种目标UE的框图；
图11是本发明实施例提供的一种配置信息传输系统的结构示意图。
具体实施方式
请参考图1，其示出了本申请各个实施例所涉及一种实施环境的示意图，参见图1，该实施环境可以包括：基站01和多个UE。
基站01可以向多个UE下发配置信息来对该多个UE进行资源配置，配置信息可以用于指示UE的信道状态信息参考信号(英文：Channel State Information-Reference Signal；简称：CSI-RS)配置。
该多个UE中的部分UE的CSI-RS配置相同。基站01可以根据该多个UE的配置信息来对多个UE进行分组，得到m个群组，每个群组包括至少两个UE，同一个群组中所有UE的CSI-RS配置相同，其中，该m为大于或者等于1的整数。示例地，如图1所示，多个UE包括：UE-021、UE-022、UE-023、UE-024、UE-025、UE-026、UE-027、UE-028和UE-029。假设UE-021、UE-022和UE-023的CSI-RS配置相同，UE-024和UE-025的CSI-RS配置相同，UE-026、UE-027、UE-028和UE-029的CSI-RS配置相同，则基站01可以将这些UE分成三个群组，该三个群组可以为群组A、群组B和群组C，其中，群组A包括：UE-021、UE-022和UE-023，群组B包括：UE-024和UE-025，群组C包括：UE-026、UE-027、UE-028和UE-029。
基站01得到m个群组后，可以为每个群组分配群组标识，该群组标识可以为信道状态信息无线网络临时标识(英文：Channel State Information-Radio Network Temporary Identity；简称：CSI-RNTI)。示例地，群组A的CSI-RNTI可以为ID-A，群组B的CSI-RNTI可以为ID-B，群组C的CSI-RNTI可以为ID-C，基站01可以向UE-021、UE-022和UE-023下发ID-A，向UE-024和UE-025下发ID-B，向UE-026、UE-027、UE-028和UE-029下发ID-C，该ID-A、ID-B和ID-C可以相同，也可以不同。
基站01可以确定目标群组对应的配置信息(也即是目标群组中的UE的配置信息)，然后在第一预设时频资源区域向目标群组中的UE发送配置信息。在基站01向目标群组中的UE发送配置信息之前，基站01可以确定指示信息，获取目标群组的CSI-RNTI，采用目标 群组的CSI-RNTI对指示信息进行加扰，并在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，其中，指示信息用于指示第一预设时频资源区域在PDSCH中的位置，目标UE的调制编码方式等，目标群组中的每个UE可以根据目标群组的群组标识，在PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，并对加扰后的指示信息进行解扰得到指示信息，根据指示信息，从PDSCH的第一预设时频资源区域读取目标群组对应的配置信息。
示例地，假设目标群组为群组A，则基站01可以确定群组A对应的配置信息和指示信息，采用ID-A对指示信息进行加扰，并在PDCCH上的第二预设时频资源区域向群组A中的UE-021、UE-022和UE-023发送加扰后的指示信息，UE-021可以根据ID-A，在PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，并对加扰后的指示信息进行解扰得到指示信息，根据指示信息，从PDSCH的第一预设时频资源区域读取目标群组对应的配置信息。同理，UE-022和UE-023也可以获取到相应的配置信息。
与此同理，UE-024和UE-025可以获取到相应的配置信息，UE-026、UE-027、UE-028和UE-029可以获取到相应的配置信息。
需要说明的是，相关技术中，对于UE-021、UE-022和UE-023，基站01分别向UE-021、UE-022和UE-023发送配置信息和采用相应的UE的无线网络临时标识(英文：Radio Network Temporary Identity；简称：RNTI)加扰的指示信息，假设UE-021的RNTI为ID-A1，UE-022的RNTI为ID-A2，UE-023的RNTI为ID-A3，也即是，基站01向UE-021发送配置信息和采用ID-A1加扰的指示信息，向UE-022发送配置信息和采用ID-A2加扰的指示信息，向UE-023发送配置信息和采用ID-A3加扰的指示信息，UE-021、UE-022和UE-023根据各自的RNTI进行检测，得到相应的指示信息，并根据相应的指示信息读取到各自的配置信息，这样，由于UE-021、UE-022和UE-023的配置信息是相同的，而基站01需要发送三个指示信息和三个相同的配置信息，导致信令开销较大。
请参考图2，其示出了本发明实施例提供的一种配置信息传输方法的方法流程图，该配置信息传输方法可以由图1所示实施环境中的基站01执行，参见图2，该配置信息传输方法可以包括：
步骤201、基站确定目标群组对应的配置信息，配置信息用于指示目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同。
步骤202、基站在第一预设时频资源区域向目标群组中的UE发送配置信息。
综上所述，本发明实施例提供的配置信息传输方法，基站确定目标群组对应的配置信息，并在第一预设时频资源区域向目标群组中的UE发送配置信息。由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
可选地，第一预设时频资源区域在物理下行共享信道PDSCH上，
在步骤202之前，该方法还包括：
基站确定指示信息，指示信息用于指示第一预设时频资源区域在PDSCH中的位置；
基站确定目标群组的信道状态信息CSI无线网络临时标识RNTI；
基站采用目标群组的CSI-RNTI对指示信息进行加扰；
基站在物理下行控制信道PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。
可选地，在基站在物理下行控制信道PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息之前，该方法还包括：
基站将目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至目标群组中的UE。
可选地，基站服务的群组包括：m个群组，m为大于或者等于1的整数，目标群组为m个群组中的任意一个群组，
m个群组中任意两个群组的CSI-RNTI不同；或者，
m个群组中的所有群组的CSI-RNTI相同；
当m个群组中的所有群组的CSI-RNTI相同时，m个群组中的所有群组对应的加扰后的指示信息分时发送，基站在物理下行控制信道PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，包括：
基站在目标时间段内的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，目标时间段与目标群组对应。
可选地，第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，公共搜索空间为PDCCH上用于承载基站发送的公共下行控制信息DCI的搜索空间。
可选地，第二预设时频资源区域为群组搜索空间中的时频资源区域，群组搜索空间为PDCCH上用于承载基站向群组发送的下行控制信息DCI的搜索空间。
可选地，基站在物理下行控制信道PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息之前，该方法还包括：
基站将PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为群组搜索空间。
综上所述，本发明实施例提供的配置信息传输方法，基站确定目标群组对应的配置信息，并在第一预设时频资源区域向目标群组中的UE发送配置信息。由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图3，其示出了本发明实施例提供的另一种配置信息传输方法的方法流程图，该配置信息传输方法可以由图1所示实施环境中的目标群组中的目标UE来执行，参见图3，该配置信息传输方法可以包括：
步骤301、目标用户设备UE在第一预设时频资源区域接收基站发送的配置信息，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标群组包括至少两个UE，配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，目标群组中的所有UE的CSI-RS配置相同，目标UE属于目标群组。
步骤302、目标UE根据配置信息接收CSI-RS，并基于接收到的CSI-RS进行信道估计。
综上所述，本发明实施例提供的配置信息传输方法，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于接收到的CSI-RS进行信道估 计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
可选地，第一预设时频资源区域在物理下行共享信道PDSCH上，
在步骤301之前，该方法还包括：
目标UE接收基站发送的无线资源控制RRC信令，RRC信令承载有目标群组的信道状态信息CSI无线网络临时标识RNTI；
目标UE根据目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，加扰后的指示信息是基站确定指示信息后，采用目标群组的CSI-RNTI对指示信息进行加扰得到的，指示信息用于指示第一预设时频资源区域在PDSCH中的位置。
可选地，基站服务的群组包括：m个群组，m为大于或者等于1的整数，目标群组为m个群组中的任意一个群组，
m个群组中任意两个群组的CSI-RNTI不同；或者，
m个群组中的所有群组的CSI-RNTI相同；
当m个群组中的所有群组的CSI-RNTI相同时，m个群组中的所有群组对应的加扰后的指示信息分时发送，目标UE根据目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，包括：
目标UE根据目标群组的CSI-RNTI，在目标时间段内的第二预设时频资源区域检测加扰后的指示信息，目标时间段与目标群组对应。
可选地，第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，公共搜索空间为PDCCH上用于承载基站发送的公共下行控制信息DCI的搜索空间。
可选地，第二预设时频资源区域为群组搜索空间中的时频资源区域，群组搜索空间为PDCCH上用于承载基站向群组发送的下行控制信息DCI的搜索空间。
可选地，目标UE根据目标群组的CSI-RNTI，在目标时间段内的第二预设时频资源区域检测加扰后的指示信息之后，该方法还包括：
目标UE在检测成功之后，采用无效标记对目标群组的CSI-RNTI进行标记，无效标记用于指示目标群组的CSI-RNTI无效。
综上所述，本发明实施例提供的配置信息传输方法，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于接收到的CSI-RS进行信道估计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图4，其示出了本发明实施例提供的再一种配置信息传输方法的方法流程图，本实施例以该配置信息传输方法应用于图1所示实施环境中来进行举例说明，参见图4，该配置信息传输方法可以包括：
步骤401、基站确定多个UE的配置信息，第一UE的配置信息用于指示第一UE的CSI-RS配置，第一UE为多个UE中的任意一个UE。
其中，配置信息可以是半静态配置信息。
示例地，基站可以为图1所示实施环境中的基站01，多个UE可以包括图1所示实施环境中的UE-021、UE-022、UE-023、UE-024、UE-025、UE-026、UE-027、UE-028和UE-029，因此，基站确定多个UE的配置信息也即是：基站01确定UE-021的配置信息，UE-022的配置信息，UE-023的配置信息，UE-024的配置信息，UE-025的配置信息，UE-026的配置信息，UE-027的配置信息，UE-028的配置信息和UE-029的配置信息。
第一UE的配置信息用于指示第一UE的CSI-RS配置，第一UE为多个UE中的任意一个UE，示例地，第一UE可以为UE-021，UE-021的配置信息用于指示UE-021的CSI-RS配置。
其中，基站确定多个UE的配置信息的具体实现过程可以参考相关技术，本发明实施例在此不再赘述。
步骤402、基站根据多个UE的配置信息，将多个UE分成m个群组，每个群组包括至少两个UE，同一个群组中所有UE的CSI-RS配置相同，m为大于或者等于1的整数。
在本发明实施例中，多个UE中的部分UE的配置信息可能是相同的，比如，多个UE中的部分UE测量相同的端口(英文：port)，或者，多个UE中的部分UE的beamformed(中文：波束成形)CSI-RS的weight(中文：权重)相同，因此，基站可以根据多个UE的配置信息，将多个UE分成m个群组，同一个群组中所有UE的CSI-RS配置相同(也即是，同一个群组中所有UE的配置信息相同)，m为大于或者等于1的整数。基站将多个UE分成m个群组后，每个群组可以对应一个配置信息，第一群组对应的配置信息用于指示第一群组中的UE的CSI-RS配置，第一群组为m个群组中的任意一个群组，本发明实施例对此不作限定。
示例地，假设UE-021、UE-022和UE-023的CSI-RS配置相同，UE-024和UE-025的CSI-RS配置相同，UE-026、UE-027、UE-028和UE-029的CSI-RS配置相同，则基站01可以根据这9个UE的配置信息，将这9个分成三个群组，该三个群组可以为群组A、群组B和群组C，每个群组可以对应一个配置信息，示例地，群组A对应的配置信息可以为配置信息a，群组B对应的配置信息可以为配置信息b，群组C对应的配置信息可以为配置信息c，其中，群组A包括：UE-021、UE-022和UE-023，群组B包括：UE-024和UE-025，群组C包括：UE-026、UE-027、UE-028和UE-029。群组A对应的配置信息a用于指示UE-021、UE-022和UE-023的CSI-RS配置，群组B对应的配置信息b用于指示UE-024和UE-025的CSI-RS配置，群组C对应的配置信息c用于指示UE-026、UE-027、UE-028和UE-029的CSI-RS配置。
步骤403、基站为m个群组中的每个群组分配CSI-RNTI。
基站将多个UE分成m个群组后，可以为m个群组中的每个群组分配CSI-RNTI。示例地，基站01为群组A分配CSI-RNTI，为群组B分配CSI-RNTI，为群组C分配CSI-RNTI，群组A的CSI-RNTI可以为ID-A，群组B的CSI-RNTI可以为ID-B，群组C的CSI-RNTI可以为ID-C，本发明实施例对此不作限定。
其中，基站为m个群组分配CSI-RNTI的过程可以参考相关技术中基站为UE分配 RNTI的过程，本发明实施例在此不再赘述。
需要说明的是，在本发明实施例中，m个群组中所有群组的CSI-RNTI可以相同，或者，m个群组中的任意两个群组的CSI-RNTI不同，本发明实施例对此不作限定。其中，由于相关技术的协议中RNTI的预留值有限，本发明实施例通过为所有群组分配相同的CSI-RNTI，可以减少CSI-RNTI的值。
步骤404、基站将目标群组的CSI-RNTI承载在RRC信令上发送至目标群组中的UE，目标群组为m个群组中的任意一个群组，目标群组中的UE包括目标UE。
基站可以将目标群组的CSI-RNTI封装在RRC信令中，然后通过PDSCH向目标群组中的UE发送RRC信令。其中，目标群组为m个群组中的任意一个群组，目标群组中的UE包括目标UE。
在本发明实施例中，基站可以向m个群组中的每个群组的UE发送相应的RRC信令，该m个群组包括目标群组；或者，基站可以只向目标群组中的UE发送RRC信令，本发明实施例对此不作限定。
示例地，假设目标群组为群组A，则基站01将ID-A封装在RRC信令中，然后通过PDSCH向目标群组A中的UE-021、UE-022和UE-023发送RRC信令。
步骤405、目标UE接收基站发送的RRC信令。
其中，RRC信令承载有目标群组的CSI-RNTI。
基站向目标群组中的UE发送RRC信令时，目标UE可以接收基站发送的RRC信令，并对该RRC信令进行处理，得到目标群组的CSI-RNTI，该目标UE属于目标群组。
示例地，目标群组可以为群组A，目标UE可以为群组A中的UE-021，因此，也即是，UE-021接收基站01发送的RRC信令，对该RRC信令进行处理，得到目标群组的CSI-RNTI，目标群组的CSI-RNTI为ID-A。
需要说明的是，目标UE在得到目标群组的CSI-RNTI后，若目标UE自身存储有CSI-RNTI，该目标UE可以根据目标群组的CSI-RNTI对自身存储的CSI-RNTI进行更新。比如，UE-021之前属于群组B，存储的CSI-RNTI为ID-B，则UE-021在得到ID-A后，目标UE可以根据ID-A对之前存储的ID-B进行更新，此时，UE-021属于群组A。
步骤406、基站确定目标群组对应的配置信息，配置信息用于指示目标群组中的UE的CSI-RS配置。
由步骤402可知，m个群组中的每个群组对应一个配置信息，因此，基站可以确定目标群组对应的配置信息，目标群组对应的配置信息用于指示目标群组中的UE的CSI-RS配置。其中，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同。
示例地，目标群组为群组A，群组A对应的配置信息为配置信息a，因此，基站01可以确定配置信息a，配置信息a用于指示UE-021、UE-022和UE-023的CSI-RS配置。
需要说明的是，在本发明实施例中，基站确定目标群组对应的配置信息后，可以将目标群组对应的配置信息封装在RRC信令中，在PDSCH上的第一预设时频资源区域向目标群组中的UE发送，也可以将目标群组对应的配置信息承载在DCI中，在PDCCH上的第二预设时频资源区域向目标群组中的UE发送，当基站在PDSCH上的第一预设时频资源区域向目标群组中的UE发送配置信息时，基站需要在PDCCH上的第二预设时频资源区域向目标群组中的UE发送指示信息，该指示信息用于指示第一预设时频资源区域在PDSCH中的 位置，使得目标群组中的UE能够根据指示信息读取第一预设时频资源区域中的RRC信令中的配置信息。本发明实施例以基站将目标群组对应的配置信息封装在RRC信令中为例进行说明。
步骤407、基站确定指示信息，指示信息用于指示第一预设时频资源区域在PDSCH中的位置。
基站可以确定指示信息，指示信息用于指示第一预设时频资源区域在PDSCH中的位置。示例地，该指示信息可以为指示信息Z。
可选地，基站在确定第一预设时频资源区域后，可以生成指示信息，基站生成指示信息的具体实现过程可以参考相关技术，本发明实施例在此不再赘述。
步骤408、基站获取目标群组的CSI-RNTI。
基站可以获取目标群组的CSI-RNTI。示例地，基站获取目标群组A的CSI-RNTI，该目标群组A的CSI-RNTI可以为ID-A。
步骤409、基站采用目标群组的CSI-RNTI对指示信息进行加扰。
基站确定指示信息以及获取到目标群组的CSI-RNTI后，可以采用目标群组的CSI-RNTI对指示信息进行加扰，得到加扰后的指示信息。示例地，基站01采用ID-A对指示信息Z进行加扰，得到加扰后的指示信息Z1。其中，基站采用目标群组的CSI-RNTI对指示信息进行加扰的具体实现过程可以参考相关技术，本发明实施例在此不再赘述。
步骤410、基站在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。
可选地，基站可以将加扰后的指示信息封装在DCI中，通过PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。由于加扰后的指示信息是采用目标群组的CSI-RNTI加扰的，而在本发明实施例中，m个群组的CSI-RNTI可以相同，也可以不同，当m个群组的CSI-RNTI不同时，基站可以在同一时间段内向不同的群组中的UE发送采用相应的CSI-RNTI加扰的指示信息，也可以在不同时间段向不同的群组中的UE发送采用相应的CSI-RNTI加扰的指示信，当m个群组的CSI-RNTI相同时，如果基站在同一时间段内向不同的群组中的UE发送采用同一个CSI-RNTI加扰的指示信息，m个群组中除目标群组以外的其他群组中的UE也能检测到该指示信息，导致配置信息接收错误，因此，当m个群组的CSI-RNTI相同时，每个群组可以对应一个时间段，该CSI-RNTI只在相应的时间段内对相应的群组中的UE有效，这样可以避免配置信息接收错误的情况。其中，基站在向各个群组中的UE发送配置信息时，可以根据配置信息的紧急程度对相应群组的UE发送配置信息，配置信息的发送顺序可以与紧急程度正相关。
在本发明实施例中，当m个群组的CSI-RNTI相同时，该步骤410也可以为基站在目标时间段内的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，目标时间段与目标群组对应。示例地，基站在目标时间段内的第二预设时频资源区域向群组A中的UE-021、UE-022和UE-023发送加扰后的指示信息。示例地，每个群组对应的时间段可以为一个TTI，基站可以在目标群组对应的TTI内的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。
需要说明的是，PDCCH上的搜索空间可以包括：UE搜索空间、公共搜索空间和群组搜索空间，其中，UE搜索空间和公共搜索空间是相关技术中存在的搜索空间，群组搜索空 间是本申请新增加的搜索空间。UE搜索空间用于承载基站向UE发送的DCI，位于UE搜索空间中的DCI可以采用UE的RNTI加扰，因此，UE可以根据UE的RNTI，在该UE搜索空间中检测到相应的DCI；公共搜索空间用于承载基站发送的公共DCI，位于公共搜索空间中的DCI可以采用所有UE的共有标识加扰，因此，UE可以根据所有UE的共有标识，在该公共搜索空间中检测到相应的DCI，其中，所有UE的共有标识可以包括但不限于：寻呼标识、传输格式标识、上行功率控制标识等；群组搜索空间是本申请中新增加的一个搜索空间，群组搜索空间固定在PDCCH的某些CCE上，用于承载基站向群组发送的DCI，位于群组搜索空间中的DCI可以采用群组的CSI-RNTI加扰，因此，UE可以根据群组的CSI-RNTI，在该群组搜索空间中检测到相应的DCI。在本发明实施例中，第二预设时频资源区域可以为公共搜索空间中的时频资源区域，也可以为群组搜索空间中的时频资源区域，当第二预设时频资源区域为群组搜索空间中的时频资源区域时，基站在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息之前，可以将PDCCH上的多个预设CCE所组成的搜索空间确定为群组搜索空间，然后通过在PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，基站将PDCCH上的多个预设CCE所组成的搜索空间确定为群组搜索空间的过程可以参考相关技术，本发明实施例对此不作限定。其中，根据相关技术的协议中RNTI的预留值，当第二预设时频资源区域为公共搜索空间中的时频资源区域时，CSI-RNTI的取值可以为FFF4-FFFC(十六进制数)，当第二预设时频资源区域为群组搜索空间中的时频资源区域时，CSI-RNTI的取值可以为0000-FFFF(十六进制数)，本发明实施例通过设置群组搜索空间，可以很好的提高兼容性。
步骤411、基站在第一预设时频资源区域向目标群组中的UE发送配置信息。
当第一预设时频资源区域位于PDSCH上时，该步骤也即是：基站在PDSCH上的第一预设时频资源区域向目标群组中的UE发送配置信息。当第一预设时频资源区域位于PDCCH上时，该步骤也即是：基站在PDCCH上的第一预设时频资源区域向目标群组中的UE发送配置信息。本发明实施例以第一预设时频资源区域位于PDSCH上为例进行说明。
示例地，基站01在第一预设时频资源区域向目标群组A中的UE-021、UE-022和UE-023发送配置信息a。
步骤412、目标UE在PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息。
其中，加扰后的指示信息是基站确定指示信息后，采用目标群组的CSI-RNTI对指示信息进行加扰得到的，指示信息可以用于指示第一预设时频资源区域在PDSCH中的位置，目标UE的调制编码方式等。
目标UE可以根据目标群组的CSI-RNTI，在PDCCH上的第二预设时频资源区域检测加扰后的指示信息。其中，当m个群组的CSI-RNTI相同时，目标UE可以根据目标群组的CSI-RNTI，在目标群组对应的目标时间段内的第二预设时频资源区域检测加扰后的指示信息，本发明实施例对此不作限定。
示例地，目标UE可以为UE-021，UE-021可以根据目标群组的CSI-RNTI，在与目标群组A对应的目标时间段内的第二预设时频资源区域检测加扰后的指示信息Z1。
步骤413、目标UE在第一预设时频资源区域接收基站发送的配置信息。
其中，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向 目标群组中的UE发送的，目标群组包括至少两个UE，配置信息用于指示目标群组中的UE的CSI-RS配置，目标群组中的所有UE的CSI-RS配置相同，目标UE属于目标群组。
目标UE检测到加扰后的指示信息后，可以对加扰后的指示信息进行解扰得到指示信息，根据指示信息，在第一预设时频资源区域接收基站发送的配置信息。示例地，UE-021在第一预设时频资源区域接收基站01发送的配置信息a。
需要说明的是，当m个群组的CSI-RNTI相同时，目标UE在对指示信息检测成功之后，可以采用无效标记对目标群组的CSI-RNTI进行标记，无效标记用于指示目标群组的CSI-RNTI无效，这样可以便于其他群组使用该CSI-RNTI。可选地，目标UE可以将目标群组的CSI-RNTI删除或者丢弃，使得目标群组的CSI-RNTI对于目标UE无效。
步骤414、目标UE根据配置信息接收CSI-RS，并基于接收到的CSI-RS进行信道估计。
目标UE接收配置信息后，可以根据配置信息接收CSI-RS，并基于收到的CSI-RS进行信道估计。其中，目标UE基于接收到的CSI-RS进行信道估计的过程可以参考相关技术，本发明实施例在此不再赘述。
需要说明的是，第一预设时频资源区域可以是PDSCH上的时频资源区域，也可以是PDCCH上的时频资源区域，当第一预设时频资源区域是PDSCH上的时频资源区域时，可以按照上述步骤401至步骤414实现基站与UE之间的配置信息传输；当第一预设时频资源区域是PDCCH上的时频资源区域，可以按照上述步骤401至步骤406以及步骤413和步骤414实现基站与UE之间的配置信息传输，在此过程中，基站需要将目标群组对应的配置信息封装在DCI中，并采用目标群组的CSI-RNTI进行加扰，目标UE可以根据目标群组的CSI-RNTI对PDCCH进行盲检测，得到目标群组对应的配置信息，本发明实施例在此不再赘述。还需要说明的是，本发明实施例中是以指示信息在PDCCH传输为例进行说明的，实际应用中，指示信息也可以在增强的物理下行控制信道(英文：Enhancedphysical downlink control channel；简称：EPDCCH)上传输，本发明实施例对此不作限定。
需要补充说明的是，本发明实施例提供的配置信息传输方法步骤的先后顺序可以进行适当调整，步骤也可以根据情况进行相应增减，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化的方法，都应涵盖在本申请的保护范围之内，因此不再赘述。
综上所述，本发明实施例提供的配置信息传输方法，基站确定目标群组对应的配置信息，并在第一预设时频资源区域向目标群组中的UE发送配置信息。由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
随着大规模(英文：Massive)多输入多输出(英文：Multiple-Input Multiple-Out-put；简称：MIMO)系统的使用，基站服务的UE越来越多，基站需要向每个UE发送承载相应的配置信息的RRC信令，这样，当一组UE的配置信息相同时，由于基站需要向每个UE都发送RRC信令，导致RRC信令开销较大；本发明实施例提供的配置信息传输方法，在UE密集的网络中，可以大大节省RRC信令开销。
随着通信系统的发展，在未来的第五代(英文：Fifth Generation；简称：5G)通信系统中，每个网络中所能容纳的用户数越来越多，随着用户数的大规模增加，基站对UE的各种配置信息也会随之大大的增加，这同时也就带来了大量的信令开销，在一个小区内，由于 各种因素的变化(例如信道环境的变化)等，UE的配置也会随着发生变化，在UE密集的场景中，一组UE可能需要一样的半静态配置信息，当半静态配置信息需要更新时，相关技术中的基站需要向每个UE下发一个承载半静态配置信息的RRC信令，导致信令开销较大，本发明实施例通过在第一预设时频资源区域向一个群组中的所有UE发送半静态配置信息，减小了信令开销。
以下以一个简单的例子对本发明实施例的效果进行简单说明。
在不考虑RRC信令中的可选项的情况下，基站向UE发送的承载有配置信息RRC信令中包括：CSI process(中文：CSI进程)和CSI-RS resource configuration(中文：CSI-RS资源配置)，CSI process用于指示CSI-RS resource configuration，CSI-RS Resource configuration中包括CSI-RS的端口数、CSI-RS的更新周期、CSI-RS的发送时刻以及CSI-RS所占用的物理资源块。假设CSI process需要16bits(中文：比特)，CSI-RS resource configuration需要26bits，基站服务的UE有30个。
相关技术中，基站需要向每个UE发送一个承载有配置信息RRC信令，因此，相关技术中的信令开销为：30*(16+26)＝1260bits。
本发明实施例中，基站可以将30个UE分为5群组，每个群组包括6个UE，基站向UE发送承载有群组CSI-RNTI的RRC信令需要3bits，由于是针对每个群组发送一个承载有配置信息RRC信令，因此，本发明实施例的信令开销为：30*3+(16+26)*5＝300bits。
因此，针对这种情况，本发明实施例可以减少(1260-300)bits的信令，信令可以减少(1260-300)/1260＝76％。
请参考图5，其示出了本发明实施例提供的一种基站500的框图。该基站500可以为图1所示实施环境中的基站01，用于执行图4所示实施例提供的部分方法以及图2所示实施例提供的全部方法。参见图5，该基站500可以包括：
第一确定模块510，用于确定目标群组对应的配置信息，配置信息用于指示目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同。
第一发送模块520，用于在第一预设时频资源区域向目标群组中的UE发送配置信息。
综上所述，本发明实施例提供的基站，由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图6，其示出了本发明实施例提供的另一种基站600的框图。该基站600可以为图1所示实施环境中的基站01，用于执行图4所示实施例提供的部分方法以及图2所示实施例提供的全部方法。参见图6，该基站600可以包括：
第一确定模块610，用于确定目标群组对应的配置信息，配置信息用于指示目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，目标群组包括至少两个UE，目标群组中所有UE的CSI-RS配置相同；
第一发送模块620，用于在第一预设时频资源区域向目标群组中的UE发送配置信息。
可选地，第一预设时频资源区域在物理下行共享信道PDSCH上，该基站600还包括：
第二确定模块630，用于确定指示信息，指示信息用于指示第一预设时频资源区域在PDSCH中的位置；
获取模块640，用于获取目标群组的信道状态信息CSI无线网络临时标识RNTI；
加扰模块650，用于采用目标群组的CSI-RNTI对指示信息进行加扰。
第二发送模块660，用于在物理下行控制信道PDCCH上的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息。
可选地，该基站600还包括：第三发送模块670，用于将目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至目标群组中的UE。
可选地，基站服务的群组包括：m个群组，m为大于或者等于1的整数，目标群组为m个群组中的任意一个群组，m个群组中任意两个群组的CSI-RNTI不同；或者，m个群组中的所有群组的CSI-RNTI相同；
当m个群组中的所有群组的CSI-RNTI相同时，m个群组中的所有群组对应的加扰后的指示信息分时发送，第二发送模块660，用于：在目标时间段内的第二预设时频资源区域向目标群组中的UE发送加扰后的指示信息，目标时间段与目标群组对应。
可选地，第二预设时频资源区域为公共搜索空间中的时频资源区域，其中，公共搜索空间为PDCCH上用于承载基站发送的公共下行控制信息DCI的搜索空间。
可选地，第二预设时频资源区域为群组搜索空间中的时频资源区域，群组搜索空间为PDCCH上用于承载基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该基站还可以包括：第三确定模块(图6中未示出)，用于将PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为群组搜索空间。
综上所述，本发明实施例提供的基站，由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图7，其示出了本发明实施例提供的一种目标UE-700的框图。该目标UE-700可以为图1所示实施环境中的目标群组中的UE，用于执行图4所示实施例提供的部分方法以及图3所示实施例提供的全部方法。参见图7，该目标UE-700可以包括：
第一接收模块710，用于在第一预设时频资源区域接收基站发送的配置信息，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标群组包括至少两个UE，配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，目标群组中的所有UE的CSI-RS配置相同，目标UE属于目标群组。
估计模块720，用于根据配置信息接收CSI-RS，并基于收到的CSI-RS进行信道估计。
综上所述，本发明实施例提供的目标UE，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于接收到的CSI-RS进行信道估计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图8，其示出了本发明实施例提供的另一种目标UE-800的框图。该目标UE-800可以为图1所示实施环境中的目标群组中的UE，用于执行图4所示实施例提供的部分方法以及图3所示实施例提供的全部方法。参见图8，该目标UE-800可以包括：
第一接收模块810，用于在第一预设时频资源区域接收基站发送的配置信息，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标群组包括至少两个UE，配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，目标群组中的所有UE的CSI-RS配置相同，目标UE属于目标群组。
估计模块820，用于根据配置信息接收CSI-RS，并基于收到的CSI-RS进行信道估计。
可选地，第一预设时频资源区域在物理下行共享信道PDSCH上，该目标UE-800还包括：第二接收模块830，用于接收基站发送的无线资源控制RRC信令，RRC信令承载有目标群组的信道状态信息CSI无线网络临时标识RNTI；
检测模块840，用于根据目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测基站发送的加扰后的指示信息，加扰后的指示信息是基站确定指示信息后，采用目标群组的CSI-RNTI对指示信息进行加扰得到的，指示信息用于指示第一预设时频资源区域在PDSCH中的位置。
可选地，基站服务的群组包括：m个群组，m为大于或者等于1的整数，目标群组为m个群组中的任意一个群组，m个群组中任意两个群组的CSI-RNTI不同；或者，m个群组中的所有群组的CSI-RNTI相同；
当m个群组中的所有群组的CSI-RNTI相同时，m个群组中的所有群组对应的加扰后的指示信息分时发送，检测模块840，用于根据目标群组的CSI-RNTI，在目标时间段内的第二预设时频资源区域检测加扰后的指示信息，目标时间段与目标群组对应。
可选地，第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，公共搜索空间为PDCCH上用于承载基站发送的公共下行控制信息DCI的搜索空间。
可选地，第二预设时频资源区域为群组搜索空间中的时频资源区域，群组搜索空间为PDCCH上用于承载基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该目标UE-800还包括：标记模块850，用于在检测成功之后，采用无效标记对目标群组的CSI-RNTI进行标记，无效标记用于指示目标群组的CSI-RNTI无效。
综上所述，本发明实施例提供的目标UE，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于接收到的CSI-RS进行信道估计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
需要说明的是：上述实施例提供的配置信息传输装置(包括基站和目标UE)在传输配置信息时，仅以上述各功能模块的划分进行举例说明，实际应用中，可以根据需要而将上述功能分配由不同的功能模块完成，即将设备的内部结构划分成不同的功能模块，以完成以上描述的全部或者部分功能。另外，上述实施例提供的配置信息传输装置和配置信息传 输方法实施例属于同一构思，其具体实现过程详见方法实施例，这里不再赘述。
请参考图9，其示出了本发明实施例提供的一种基站900的框图。该基站900可以为图1所示实施环境中的基站01，用于执行图4所示实施例提供的部分方法以及图2所示实施例提供的全部方法。参见图9，该基站900可以包括：处理器910和发射机920，该处理器910和该发射机920耦合。
该处理器910，用于确定目标群组对应的配置信息，该配置信息用于指示该目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，该目标群组包括至少两个UE，该目标群组中所有UE的CSI-RS配置相同；
该发射机920，用于在第一预设时频资源区域向该目标群组中的UE发送该配置信息。
综上所述，本发明实施例提供的基站，由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该处理器910，还用于：
确定指示信息，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置；
获取该目标群组的信道状态信息CSI无线网络临时标识RNTI；
采用该目标群组的CSI-RNTI对该指示信息进行加扰；
该发射机920，还用于在物理下行控制信道PDCCH上的第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息。
可选地，该发射机920，还用于将该目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至该目标群组中的UE。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该发射机920，还用于在目标时间段内的该第二预设时频资源区域向该目标群组中的UE发送加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该处理器910还用于：将该PDCCH上的多个预设控制信道元素CCE所组成的搜索空间确定为该群组搜索空间。
综上所述，本发明实施例提供的基站，由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图10，其示出了本发明实施例提供的一种目标UE-1000的框图。该目标UE-1000 可以为图1所示实施环境中的目标群组中的UE，用于执行图4所示实施例提供的部分方法以及图3所示实施例提供的全部方法。参见图10，该目标UE-1000可以包括：接收机1010和处理器1020。
该接收机1010，用于在第一预设时频资源区域接收基站发送的配置信息，该配置信息是该基站确定目标群组对应的配置信息后，在第一预设时频资源区域向该目标群组中的UE发送的，该目标群组包括至少两个UE，该配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，该目标群组中的所有UE的CSI-RS配置相同，该目标UE属于该目标群组。
该处理器1020，用于根据配置信息接收CSI-RS，并基于收到的CSI-RS进行信道估计。
综上所述，本发明实施例提供的目标UE，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于CSI-RS进行信道估计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
可选地，该第一预设时频资源区域在物理下行共享信道PDSCH上，该接收机1010，还用于接收该基站发送的无线资源控制RRC信令，该RRC信令承载有该目标群组的信道状态信息CSI无线网络临时标识RNTI；
该处理器1020，用于根据该目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测该基站发送加扰后的指示信息，加扰后的该指示信息是该基站确定指示信息后，采用该目标群组的CSI-RNTI对该指示信息进行加扰得到的，该指示信息用于指示该第一预设时频资源区域在该PDSCH中的位置。
可选地，该基站服务的群组包括：m个群组，该m为大于或者等于1的整数，该目标群组为该m个群组中的任意一个群组，该m个群组中任意两个群组的CSI-RNTI不同；或者，该m个群组中的所有群组的CSI-RNTI相同；
当该m个群组中的所有群组的CSI-RNTI相同时，该m个群组中的所有群组对应的加扰后的指示信息分时发送，该处理器1020，还用于根据该目标群组的CSI-RNTI，在目标时间段内的该第二预设时频资源区域检测加扰后的该指示信息，该目标时间段与该目标群组对应。
可选地，该第二预设时频资源区域为公共搜索空间中的时频资源区域。其中，该公共搜索空间为该PDCCH上用于承载该基站发送的公共下行控制信息DCI的搜索空间。
可选地，该第二预设时频资源区域为群组搜索空间中的时频资源区域，该群组搜索空间为该PDCCH上用于承载该基站向群组发送的下行控制信息DCI的搜索空间。
可选地，该处理器1020，还用于在检测成功之后，采用无效标记对该目标群组的CSI-RNTI进行标记，该无效标记用于指示该目标群组的CSI-RNTI无效。
综上所述，本发明实施例提供的目标UE，目标UE在第一预设时频资源区域接收基站发送的配置信息，根据配置信息接收CSI-RS并基于CSI-RS进行信道估计，配置信息是基站确定目标群组对应的配置信息后，在第一预设时频资源区域向目标群组中的UE发送的，目标UE属于目标群组。由于配置信息是基站在第一预设时频资源区域向目标群组中的UE 发送的，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
请参考图11，其示出了本发明实施例提供的一种配置信息传输系统1100结构示意图。参见图11，该配置信息传输系统1100可以包括：基站1110和目标UE-1120。
在一种可能的实现方式中，基站1110为图5或图6所示的基站；目标UE-1120为图7或图8所示的目标UE；
在一种可能的实现方式中，基站1110为9所示的基站；目标UE-1120为图10所示的目标UE。
综上所述，本发明实施例提供的配置信息传输系统，由于基站在第一预设时频资源区域向目标群组中的UE发送配置信息，因此，传输配置信息的信令开销较小，解决了相关技术中信令开销较大的问题，达到了减小信令开销的效果。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通过硬件来完成，也可以通过程序来指令相关的硬件完成，所述的程序可以存储于一种计算机可读存储介质中，上述提到的存储介质可以是只读存储器，磁盘或光盘等。
以上所述仅为本申请的可选实施例，并不用以限制本申请，凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (37)

  1. 一种配置信息传输方法，其特征在于，所述方法包括：
    基站确定目标群组对应的配置信息，所述配置信息用于指示所述目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，所述目标群组包括至少两个UE，所述目标群组中所有UE的CSI-RS配置相同；
    所述基站在第一预设时频资源区域向所述目标群组中的UE发送所述配置信息。
  2. 根据权利要求1所述的方法，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，
    所述基站在第一预设时频资源区域向所述目标群组中的UE发送所述配置信息之前，所述方法还包括：
    所述基站确定指示信息，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置；
    所述基站获取所述目标群组的信道状态信息CSI无线网络临时标识RNTI；
    所述基站采用所述目标群组的CSI-RNTI对所述指示信息进行加扰；
    所述基站在物理下行控制信道PDCCH上的第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息。
  3. 根据权利要求2所述的方法，其特征在于，所述基站在物理下行控制信道PDCCH上的第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息之前，所述方法还包括：
    所述基站将所述目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至所述目标群组中的UE。
  4. 根据权利要求2所述的方法，其特征在于，所述基站服务的群组包括：m个群组，所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述基站在物理下行控制信道PDCCH上的第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息，包括：
    所述基站在目标时间段内的所述第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  5. 根据权利要求2所述的方法，其特征在于，所述第二预设时频资源区域为公共搜索空间中的时频资源区域。
  6. 根据权利要求2所述的方法，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  7. 一种配置信息传输方法，其特征在于，所述方法包括：
    目标用户设备UE在第一预设时频资源区域接收基站发送的配置信息，所述配置信息是 所述基站确定目标群组对应的配置信息后，在第一预设时频资源区域向所述目标群组中的UE发送的，所述目标群组包括至少两个UE，所述配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，所述目标群组中的所有UE的CSI-RS配置相同，所述目标UE属于所述目标群组；
    所述目标UE根据所述配置信息接收CSI-RS，并基于接收到的所述CSI-RS进行信道估计。
  8. 根据权利要求7所述的方法，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，所述目标UE在第一预设时频资源区域接收基站发送的配置信息之前，所述方法还包括：
    所述目标UE接收所述基站发送的无线资源控制RRC信令，所述RRC信令承载有所述目标群组的信道状态信息CSI无线网络临时标识RNTI；
    所述目标UE根据所述目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测所述基站发送的加扰后的指示信息，加扰后的所述指示信息是所述基站确定指示信息后，采用所述目标群组的CSI-RNTI对所述指示信息进行加扰得到的，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置。
  9. 根据权利要求8所述的方法，其特征在于，所述基站服务的群组包括：m个群组，所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述目标UE根据所述目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测所述基站发送的加扰后的指示信息，包括：
    所述目标UE根据所述目标群组的CSI-RNTI，在目标时间段内的所述第二预设时频资源区域检测加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  10. 根据权利要求8所述的方法，其特征在于，所述第二预设时频资源区域为公共搜索空间中的时频资源区域。
  11. 根据权利要求8所述的方法，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  12. 根据权利要求9所述的方法，其特征在于，所述目标UE根据所述目标群组的CSI-RNTI，在目标时间段内的所述第二预设时频资源区域检测加扰后的所述指示信息之后，所述方法还包括：
    所述目标UE在检测成功之后，采用无效标记对所述目标群组的CSI-RNTI进行标记，所述无效标记用于指示所述目标群组的CSI-RNTI无效。
  13. 一种基站，其特征在于，所述基站包括：
    第一确定模块，用于确定目标群组对应的配置信息，所述配置信息用于指示所述目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，所述目标群组包括至少两个UE， 所述目标群组中所有UE的CSI-RS配置相同；
    第一发送模块，用于在第一预设时频资源区域向所述目标群组中的UE发送所述配置信息。
  14. 根据权利要求13所述的基站，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，所述基站还包括：
    第二确定模块，用于确定指示信息，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置；
    获取模块，用于获取所述目标群组的信道状态信息CSI无线网络临时标识RNTI；
    加扰模块，用于采用所述目标群组的CSI-RNTI对所述指示信息进行加扰；
    第二发送模块，用于在物理下行控制信道PDCCH上的第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息。
  15. 根据权利要求14所述的基站，其特征在于，所述基站还包括：
    第三发送模块，用于将所述目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至所述目标群组中的UE。
  16. 根据权利要求14所述的基站，其特征在于，所述基站服务的群组包括：m个群组，所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述第二发送模块，用于：
    在目标时间段内的所述第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  17. 根据权利要求14所述的基站，其特征在于，所述第二预设时频资源区域为公共搜索空间中的时频资源区域。
  18. 根据权利要求14所述的基站，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  19. 一种目标用户设备UE，其特征在于，所述目标UE包括：
    第一接收模块，用于在第一预设时频资源区域接收基站发送的配置信息，所述配置信息是所述基站确定目标群组对应的配置信息后，在第一预设时频资源区域向所述目标群组中的UE发送的，所述目标群组包括至少两个UE，所述配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，所述目标群组中的所有UE的CSI-RS配置相同，所述目标UE属于所述目标群组；
    估计模块，用于根据所述配置信息接收CSI-RS，并基于接收到的所述CSI-RS进行信道估计。
  20. 根据权利要求19所述的目标UE，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，所述目标UE还包括：
    第二接收模块，用于接收所述基站发送的无线资源控制RRC信令，所述RRC信令承载 有所述目标群组的信道状态信息CSI无线网络临时标识RNTI；
    检测模块，用于根据所述目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测所述基站发送的加扰后的指示信息，加扰后的所述指示信息是所述基站确定指示信息后，采用所述目标群组的CSI-RNTI对所述指示信息进行加扰得到的，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置。
  21. 根据权利要求20所述的目标UE，其特征在于，
    所述基站服务的群组包括：m个群组，所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述检测模块，用于根据所述目标群组的CSI-RNTI，在目标时间段内的所述第二预设时频资源区域检测加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  22. 根据权利要求20所述的目标UE，其特征在于，所述第二预设时频资源区域为公共搜索空间中的时频资源区域。
  23. 根据权利要求20所述的目标UE，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  24. 根据权利要求21所述的目标UE，其特征在于，所述目标UE还包括：
    标记模块，用于在检测成功之后，采用无效标记对所述目标群组的CSI-RNTI进行标记，所述无效标记用于指示所述目标群组的CSI-RNTI无效。
  25. 一种基站，其特征在于，所述基站包括：处理器和发射机，所述处理器与所述发射机耦合，
    所述处理器，用于确定目标群组对应的配置信息，所述配置信息用于指示所述目标群组中的用户设备UE的信道状态信息参考信号CSI-RS配置，所述目标群组包括至少两个UE，所述目标群组中所有UE的CSI-RS配置相同；
    所述发射机，用于在第一预设时频资源区域向所述目标群组中的UE发送所述配置信息。
  26. 根据权利要求25所述的基站，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，
    所述处理器，还用于确定指示信息，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置；获取所述目标群组的信道状态信息CSI无线网络临时标识RNTI；采用所述目标群组的CSI-RNTI对所述指示信息进行加扰；
    所述发射机，还用于在物理下行控制信道PDCCH上的第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息。
  27. 根据权利要求26所述的基站，其特征在于，所述发射机，还用于将所述目标群组的CSI-RNTI承载在无线资源控制RRC信令上发送至所述目标群组中的UE。
  28. 根据权利要求26所述的基站，其特征在于，所述基站服务的群组包括：m个群组， 所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述发射机，还用于在目标时间段内的所述第二预设时频资源区域向所述目标群组中的UE发送加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  29. 根据权利要求26所述的基站，其特征在于，所述第二预设时频资源区域为公共搜索空间中的时频资源区域。
  30. 根据权利要求26所述的基站，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  31. 一种目标用户设备UE，其特征在于，所述目标UE包括：接收机和处理器，所述处理器与所述接收机耦合，
    所述接收机，用于在第一预设时频资源区域接收基站发送的配置信息，所述配置信息是所述基站确定目标群组对应的配置信息后，在第一预设时频资源区域向所述目标群组中的UE发送的，所述目标群组包括至少两个UE，所述配置信息用于指示目标群组中的UE的信道状态信息参考信号CSI-RS配置，所述目标群组中的所有UE的CSI-RS配置相同，所述目标UE属于所述目标群组；
    所述处理器，用于根据所述配置信息接收CSI-RS，并基于接收到的所述CSI-RS进行信道估计。
  32. 根据权利要求31所述的目标UE，其特征在于，所述第一预设时频资源区域在物理下行共享信道PDSCH上，
    所述接收机，还用于接收所述基站发送的无线资源控制RRC信令，所述RRC信令承载有所述目标群组的信道状态信息CSI无线网络临时标识RNTI；
    所述处理器，用于根据所述目标群组的CSI-RNTI，在物理下行控制信道PDCCH上的第二预设时频资源区域检测所述基站发送的加扰后的指示信息，加扰后的所述指示信息是所述基站确定指示信息后，采用所述目标群组的CSI-RNTI对所述指示信息进行加扰得到的，所述指示信息用于指示所述第一预设时频资源区域在所述PDSCH中的位置。
  33. 根据权利要求32所述的目标UE，其特征在于，所述基站服务的群组包括：m个群组，所述m为大于或者等于1的整数，所述目标群组为所述m个群组中的任意一个群组，
    所述m个群组中任意两个群组的CSI-RNTI不同；或者，
    所述m个群组中的所有群组的CSI-RNTI相同；
    当所述m个群组中的所有群组的CSI-RNTI相同时，所述m个群组中的所有群组对应的加扰后的指示信息分时发送，所述处理器，还用于根据所述目标群组的CSI-RNTI，在目标时间段内的所述第二预设时频资源区域检测加扰后的所述指示信息，所述目标时间段与所述目标群组对应。
  34. 根据权利要求32所述的目标UE，其特征在于，所述第二预设时频资源区域为公共 搜索空间中的时频资源。
  35. 根据权利要求32所述的目标UE，其特征在于，所述第二预设时频资源区域为群组搜索空间中的时频资源区域，所述群组搜索空间为所述PDCCH上用于承载所述基站向群组发送的下行控制信息DCI的搜索空间。
  36. 根据权利要求33所述的目标UE，其特征在于，所述处理器，还用于在检测成功之后，采用无效标记对所述目标群组的CSI-RNTI进行标记，所述无效标记用于指示所述目标群组的CSI-RNTI无效。
  37. 一种配置信息传输系统，其特征在于，所述系统包括：基站和目标UE，
    所述基站为权利要求13至18任一所述的基站，所述目标UE为权利要求19至24任一所述的目标UE；或者，
    所述基站为权利要求25至30任一所述的基站，所述目标UE为权利要求31至36任一所述的目标UE。
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