WO2011120284A1 - 一种测量参考信号的信令配置系统及方法 - Google Patents

一种测量参考信号的信令配置系统及方法 Download PDF

Info

Publication number
WO2011120284A1
WO2011120284A1 PCT/CN2010/077164 CN2010077164W WO2011120284A1 WO 2011120284 A1 WO2011120284 A1 WO 2011120284A1 CN 2010077164 W CN2010077164 W CN 2010077164W WO 2011120284 A1 WO2011120284 A1 WO 2011120284A1
Authority
WO
WIPO (PCT)
Prior art keywords
reference signal
measurement reference
user terminal
information
user
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2010/077164
Other languages
English (en)
French (fr)
Inventor
王瑜新
戴博
郝鹏
梁春丽
喻斌
朱鹏
杨维维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZTE Corp
Original Assignee
ZTE Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZTE Corp filed Critical ZTE Corp
Priority to US13/505,759 priority Critical patent/US8717938B2/en
Priority to JP2012537288A priority patent/JP5548272B2/ja
Priority to KR1020127011656A priority patent/KR101392397B1/ko
Priority to MX2012006336A priority patent/MX2012006336A/es
Priority to EP10848743.0A priority patent/EP2485553B1/en
Priority to RU2012119770/08A priority patent/RU2536345C2/ru
Priority to BR112012012995-3A priority patent/BR112012012995B1/pt
Publication of WO2011120284A1 publication Critical patent/WO2011120284A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/003Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048Allocation of pilot signals, i.e. of signals known to the receiver
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00Arrangements for detecting or preventing errors in the information received
    • H04L1/0001Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0036Systems modifying transmission characteristics according to link quality, e.g. power backoff arrangements specific to the receiver
    • H04L1/0038Blind format detection
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00Arrangements affording multiple use of the transmission path
    • H04L5/0001Arrangements for dividing the transmission path
    • H04L5/0003Two-dimensional division
    • H04L5/0005Time-frequency
    • H04L5/0007Time-frequency the frequencies being orthogonal, e.g. OFDM(A) or DMT
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/20Control channels or signalling for resource management
    • H04W72/23Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications, and in particular, to a signaling configuration system and method for a Sounding Reference Signal (SRS).
  • SRS Sounding Reference Signal
  • the uplink physical channel of the Long Term Evolution (LTE) system includes a Physical Random Access Channel (PRACH), a Physical Uplink Shared Channel (PUSCH), and a physical uplink. Control Uplink Control Channel (PUCCH for short).
  • the PUSCH has two different Cyclic Prefix (CP) lengths, which are Normal Cyclic Prefix (Normal CP) and Extended Cyclic Prefix (Extended Cyc).
  • CP Cyclic Prefix
  • Normal Cyclic Prefix Normal Cyclic Prefix
  • Extended Cyclic Prefix Extended Cyclic Prefix
  • Each sub-frame of a PUSCH consists of two slots (Slots). For different cyclic prefix lengths, the position of the Demodulation Reference Signal (DMRS) in the subframe will not be located.
  • FIG. 1 is a schematic diagram of a time domain position of a demodulation reference signal according to the prior art.
  • each subframe contains two DMRS symbols
  • Figure 1 (a) is a schematic diagram of the DMRS time domain position when a normal cyclic prefix is used
  • each subframe contains 14 orthogonal frequency division multiplexing ( Orthogonal Frequency Division Multiplexing (OFDM) symbol, including DMRS symbols in 14 OFDM symbols, OFDM symbols represent the time domain position of one subframe
  • Figure 1 (b) is a schematic diagram of the DMRS time domain position when the extended cyclic prefix is used.
  • Each subframe contains 12 time domain OFDM symbols.
  • a Physical Downlink Control Channel (PDCCH) is used to carry uplink and downlink scheduling information, and uplink power control information.
  • PDCH Physical Downlink Control Channel
  • a base station may configure a user equipment (User Equipment, UE for short) through downlink control information, or a user terminal accepts a higher layer configuration, which is also configured by high layer signaling.
  • UE Downlink control information
  • Downlink Control Information (Downlink Control Information, abbreviated as DCI) format (CD) includes DCI formats 0, 1, 1A, 1B, 1C, 1D, 2, 2A, 3, and 3A. among them,
  • DCI format 0 is used to indicate the scheduling of the PUSCH
  • DCI format 1, 1A, IB, 1C and ID are used for different transmission modes of a Physical Downlink Shared Channel (PDSCH) for a single transport block;
  • PDSCH Physical Downlink Shared Channel
  • DCI format 2 and 2A are used for different transmission modes of downlink PDSCH space division multiplexing
  • DCI formats 3 and 3A are used for the transmission of power control commands for PUCCH and PUSCH.
  • the DCI formats 0, 1A, 3, and 3A have the same transport block size, and DCI format 0 and 1A are formatted by 1 bit.
  • the DCI format 3 format is as follows:
  • N 'format 0 format 0 plus cyclic redundancy check ( Cyclical Redundancy
  • the number of bits before the check (referred to as CRC) (including the additional padding bits), the parameter tpc-Index given by the upper layer determines the transmit power control command ( TPC command ) of the given UE.
  • the process of blind detection of the PDCCH in the LTE system is briefly described as follows.
  • the Control Channel Element (CCE) is the smallest unit carrying the PDCCH resource, and the control area is composed of a series of CCEs.
  • the PDCCH blind detection range is defined by the search space, and the search space is divided into a common search space and a UE-specific search space.
  • the w RNTI indicates a Radio Network Temporary Identifier (RNTI).
  • the NTI corresponds to one of the following wireless network temporary identifiers: System Information-RNTI (SI-RNTI for short), Random Access-RNTI (RA-RNTI for short), call RNTI (Paging-RNTI, abbreviated as P-RNTI), 'J, RNTI (Cell-RNTI, abbreviated as C-RNTI), Semi-Persistent Scheduling RNTI (SPS-RNTI), and temporary Cell RNTI (Temporary C-RNTI).
  • SI-RNTI System Information-RNTI
  • RA-RNTI Random Access-RNTI
  • P-RNTI Paging-RNTI
  • C-RNTI Cell-RNTI
  • SPS-RNTI Semi-Persistent Scheduling RNTI
  • Temporal C-RNTI Temporary C-RNTI
  • RNTI 3 ⁇ 4NTI The particular choice of what kind of RNTI 3 ⁇ 4NTI configured by higher layer signaling, the specific values are also designated by the respective data and signaling.
  • the values of RNTI are shown in Table 1 below.
  • the search space defined according to the aggregation level is shown in Table 2 below.
  • the UE When the UE is blindly detected, it is detected according to the DCI format corresponding to the downlink transmission mode.
  • the 16-bit CRC of each downlink control information DCI is scrambled by the above RNTI. Different UEs can configure different RNTIs to scramble the CRC, so that DCIs of different UEs can be distinguished.
  • Table 1 RNTI values
  • each DCI corresponds to a medium access control identifier (MAC id), that is, corresponding to one RNTI, and the original information bits of the DCI are added through the RNTI.
  • MAC id medium access control identifier
  • channel coding and rate matching are performed to multiplex multiple DCIs of the PDCCH together.
  • SI System Information
  • SI format 1A/1C The blind detection of the SI is only performed in the common search space, and the CRC of the DCI of the SI is scrambled with a unique SI-RNTI.
  • the broadcast information of the LTE system is divided into a main message block (Master Information Block, referred to as
  • MIB MIB
  • SIB System Information Block
  • the SRS is a signal used by a user terminal and a base station to measure channel state information (CSI).
  • the UE sends an uplink SRS on the last data symbol of the transmission subframe according to the bandwidth indicated by the eNB, the frequency domain location, the sequence cyclic shift, the period, and the subframe offset.
  • the eNB determines the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling and closed loop power control according to the obtained CSI.
  • the SRS sequence sent by the UE is obtained by cyclically shifting a root sequence O) in the time domain.
  • Different SRS sequences can be obtained by performing different cyclic shifts on the same root sequence, and the obtained SRS sequences are orthogonal to each other. Therefore, these SRS sequences can be allocated to different UEs to implement inter-UE. Code division multiple access.
  • the SRS sequence defines eight cyclic shifts given by the following formula (1): ... Formula (1)
  • n RS is indicated by 3 bit signaling, which are 0, 1, 2, 3, 4, 5, 6, and 7, respectively. That is to say, in the same time-frequency resource, the UE in the cell has 8 available code resources, and the eNB can configure up to 8 UEs to simultaneously send the SRS on the same time-frequency resource. Equation (1) can be considered as dividing the SRS sequence into 8 parts at equal intervals in the time domain, but since the SRS sequence length is a multiple of 12, the minimum length of the SRS sequence is 24.
  • the frequency domain bandwidth of the SRS is configured in a tree structure. Each SRS bandwidth configuration corresponds to a tree structure.
  • the SRS bandwidth of the highest layer (or the first layer) corresponds to the maximum SRS bandwidth of the SRS bandwidth configuration, or SRS bandwidth. range.
  • the UE calculates its own SRS bandwidth according to the signaling indication of the base station, and then determines the initial frequency domain position of the SRS by itself according to the upper layer signaling frequency domain location transmitted by the eNB.
  • FIG. 3 is a schematic diagram of a frequency domain initial position of a prior art UE that allocates different STUs for transmitting SRS. As shown in FIG.
  • the sequence used by the SRS is selected from the group of demodulation pilot sequences.
  • the SRS bandwidth of the UE is 4 Resource Blocks (RBs)
  • RBs Resource Blocks
  • a sequence of CG Computer Generated, referred to as A sequence of CG
  • the SRS bandwidth of the UE is greater than 4 RBs
  • a Zadoff-Chu sequence of a corresponding length is used.
  • the sub-carriers of the SRS are placed at intervals, that is, the SRS is transmitted using a comb structure, and the frequency comb in the LTE system (frequency)
  • the number of combs is 2, which also corresponds to the time domain's Repetition Factor (RPF) of 2.
  • RPF Repetition Factor
  • FIG. 4 is a schematic diagram of a comb structure of a prior art SRS.
  • each UE transmits an SRS
  • This comb structure allows more UEs to send SRS within the same SRS bandwidth.
  • multiple UEs may use different cyclic shifts on the same frequency comb, and then send SRS through code division multiplexing, or two UEs may be combed on different frequencies and transmitted by frequency division multiplexing.
  • SRS SRS.
  • a UE that transmits an SRS within a certain SRS bandwidth (4 RBs) can use 8 cyclic shifts and 2 frequency combs that can be used, so the UE has a total of 16 A resource that can be used to send SRS, that is, up to 16 SRSs can be sent simultaneously within this SRS bandwidth.
  • Single User Multiple Input Multiple Output (SU-MI) is not supported in the LTE system.
  • the UE can only transmit one SRS at each moment, so one UE only needs one SRS resource. Therefore, within the above SRS bandwidth, the system can simultaneously multiplex up to 16 UEs.
  • the LTE-Advanced (LTE-Advanced, LTE-A for short) system is a next-generation evolution system of the LTE system, supports SU-MIMO in the uplink, and can use up to four antennas as uplink transmitting antennas. That is to say, the UE can simultaneously transmit SRS on multiple antennas at the same time, and the eNB needs to estimate the state on each channel according to the SRS received on each antenna.
  • LTE-A carrier aggregation scenario multiple carrier types are introduced.
  • the LTE-A carrier type can be divided into three types: Backwards compatible carrier, Non-backwards compatible carrier, and Extension carrier.
  • the extended carrier has two meanings: 1) as part of a component carrier (CC); 2) as an independent component carrier.
  • the extended carrier cannot operate independently and must belong to a part of a set of component carriers, and at least one of the component carriers in the set can work independently.
  • the extended carrier is not visible to LTE UEs. In order to design simplicity and consider various possible application scenarios, the extended carrier is most likely configured There is no PDCCH. Then the DCI corresponding to the system information of the extended carrier needs to be transmitted on other component carriers.
  • LTE-A also introduces the concept of a bearer carrier, that is, the carrier that the UE initially accesses.
  • the UE can be reconfigured with the high-level signaling to ensure that the load is balanced.
  • a PDCCH component set (PDCCH CC set ) is defined, and the UE needs to perform blind detection in the PDCCH CC set; and a downlink component carrier set (DL Link set) is also defined.
  • the PDSCH of the UE can be sent on any CC in the DL CC set.
  • cross-carrier scheduling is allowed, that is, the PDCCH on a certain component carrier can schedule PDSCH or PUSCH on multiple component carriers.
  • non-precoding (ie, antenna-specific) SRS should be used, and DMRS of PUSCH should be pre-coded.
  • the base station can estimate the original CSI of the uplink by receiving the non-precoded SRS, and the pre-coded DMRS cannot enable the base station to estimate the original CSI of the uplink.
  • the UE transmits the non-precoded SRS by using multiple antennas the SRS resources required by each UE are increased, which causes the number of UEs that can be simultaneously multiplexed in the system to decrease.
  • the UE may also be configured to transmit SRS by aperiodic transmission through downlink control information or higher layer signaling. Therefore, in the LTE-A system, there are periodic SRS and aperiodic SRS. How to properly design downlink control information or high-level signaling to configure SRS resources to achieve more efficient and timely aperiodic transmission of SRS, while saving signaling overhead and reducing UE The complexity of blind detection is a problem to be solved.
  • the present invention provides a signaling configuration system and method for measuring a reference signal, which can solve the problem that the UE does not periodically transmit SRS in the prior art.
  • the present invention provides a signaling configuration method for measuring a reference signal, including: the base station notifying the user terminal to transmit the measurement reference signal aperiodically, and transmitting configuration information of the aperiodic transmission measurement reference signal (SRS) to the user terminal.
  • the step of sending the configuration information of the measurement reference signal to the user terminal is: the base station sends the information to the one or more user terminals through the physical downlink shared channel (PDSCH)
  • PDSCH physical downlink shared channel
  • the scheduling information of the PDSCH is carried by a downlink control information format 1A or format 1C, and uses a measurement reference signal-a radio network temporary identifier value (SRS-RNTI) to cyclically modify a downlink control information format (format).
  • the CRC is scrambled; wherein the control information format is format 1A or format 1C; the SRS-RNTI is a public radio network temporary identity value (RNTI) or a user-specific RNTL when using a user-specific RNTI plus
  • RNTI radio network temporary identity value
  • the downlink control information format is sent on a public or private search space; when the public RNTI is used to scramble the downlink control information format 1A or format 1C
  • the downlink control information format is transmitted on the public search space.
  • the data block of the PDSCH includes a data packet of the user terminal corresponding to the user-specific RNTI, and the data packet includes at least the user terminal.
  • the aperiodic transmission configuration information of the measurement reference signal when the CRC of the downlink control information format is scrambled using the public RNTI, the data block of the PDSCH includes one or more data packets of the user terminal, and each user terminal
  • the data packet includes at least configuration information of the aperiodic transmission measurement reference signal of the user terminal and RNTI information specific to the user terminal.
  • the method further includes: when the CRC of the downlink control information format is scrambled by using the public RNTI, the user terminal blindly detects the downlink control information format that is scrambled by the public RNTI in the corresponding search space, when the downlink control is detected.
  • the information format is obtained according to the scheduling information carried by the PDSCH. If the transport block carried by the PDSCH includes the RNTI specific to the user terminal, it is determined that the measurement reference signal needs to be sent periodically, and the corresponding configuration information is used.
  • Aperiodic transmission if the transport block carried by the PDSCH does not include the RNTI specific to the user terminal, continue to blindly detect the data of the next subframe; when the CRC of the downlink control information format is scrambled by using the user-specific RNTI User end
  • the terminal blindly detects the downlink control information format that is scrambled by the user-specific RNTI on the corresponding search space. If the user terminal blindly detects the downlink control information format that is scrambled by the user-specific RNTI in the corresponding search space, the determination needs to be performed.
  • the measurement reference signal is sent aperiodically, and the aperiodic transmission is performed according to the corresponding configuration information.
  • the configuration information of the aperiodic transmission measurement reference signal carried by the PDSCH includes one or more of the following information: cyclic shift information, a frequency domain position, an uplink component carrier index, a bandwidth, a position of a frequency comb, and a transmission measurement reference signal. Mode indication and number of transmissions.
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or is a high layer signaling or The uplink component carrier indicated by other downlink control information formats;
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or multiple uplinks
  • the plurality of uplink component carriers corresponding to the component carrier index, that is, the measurement reference signals are sent aperiodically on the plurality of uplink component carriers.
  • the step of sending the configuration information of the measurement reference signal to the user terminal is: the base station carries the indication information of the aperiodic transmission measurement reference signal of the user terminal by using the downlink control information, and configures the N for the user terminal by using the high layer signaling A resource or a mode for transmitting a measurement reference signal aperiodically; wherein N is an integer from 1 to 20.
  • Each of the N resources or modes includes one or more of the following information: cyclic shift information, frequency domain location, user-specific bandwidth, frequency comb location, SRS bandwidth configuration information And SRS transmitting a subframe, period configuration information, and a mode indication for transmitting the measurement reference signal.
  • the k-bit is used in the downlink control information to indicate indication information of the aperiodic transmission measurement reference signal, where the indication information indicates the Whether the terminal needs to send the measurement reference signal aperiodically on the corresponding uplink component carrier and use which of the N resources or modes to transmit; when the user terminal occupies multiple uplink component carriers, according to any of the following manners Instructing indication information for aperiodic transmission of the measurement reference signal on each uplink component carrier: (a) using k bits in the downlink control information to indicate indication information of the aperiodic transmission measurement reference signal, the indication information indicating whether the terminal needs to send aperiodic Measure the reference signal and use which of the N resources or modes to transmit, and send the measurement reference signal aperiodically on the uplink component carrier, and perform the aperiodic transmission measurement reference signal according to the k-bit indication information;
  • each indication information is represented by k-bit signaling, and the k-bit signaling indicates whether the terminal needs to be aperiodic on the corresponding uplink component carrier.
  • the relationship between k and N is: k two ceil ( ⁇ og 2 (N + 1)), and ceil indicates rounding up.
  • the indication information of the aperiodic transmission measurement reference signal is carried in a user-specific downlink control information format (DCI Format) domain, or in a DCI Format field dedicated to carrying aperiodic measurement reference signal information.
  • DCI Format downlink control information format
  • the method further includes: when a user-specific DCI Format in one subframe and a DCI Format dedicated to carrying aperiodic measurement reference signal information carry indication information of an aperiodic transmission measurement reference signal of the same user terminal, The user terminal parses the indication information of the aperiodic transmission measurement reference signal carried in the user-specific DCI Format.
  • the user-specific DCI Format includes a user-specific DCI Format for uplink scheduling and a user-specific DCI Format for downlink allocation; a user-specific DCI Format for uplink scheduling in one subframe
  • the user terminal performs the aperiodic period of the user terminal carried by any one of the user terminals.
  • the indication information of the measurement reference signal is sent for analysis.
  • the user-specific DCI Format is used when the user-specific DCI Format in one subframe and the DCI Format dedicated to carrying the aperiodic measurement reference signal information carry the indication information of the aperiodic transmission measurement reference signal of the same user terminal.
  • the indication information carried in the medium and the indication information carried in the DCI Format dedicated to carrying the non-periodic measurement reference signal information are configured with the same value.
  • the DCI Format dedicated to carrying the aperiodic measurement reference signal information scrambles the cyclic redundancy check CRC of the downlink control information format using a public RNTI or a proprietary RNTI.
  • the user-specific RNTI is used to perform power interference on the cyclic redundancy check CRC of the DCI Format;
  • the indication information of the periodic measurement measurement reference signal is carried in the DCI Format field dedicated to carrying the information of the aperiodic measurement reference signal, if the DCI Format includes indication information of the aperiodic transmission measurement reference signal of multiple user terminals, the public information is used.
  • the RNTI scrambles the cyclic redundancy check CRC of the DCI Format.
  • the DCI Format contains only the indication information of the aperiodic transmission measurement reference signal of the user terminal, the public RNTI or the proprietary RNTI is used for the DCI Format.
  • the cyclic redundancy check CRC is scrambled.
  • the DCI Format dedicated to carrying the aperiodic measurement reference signal information carries the indication information of the aperiodic transmission measurement reference signal of the plurality of user terminals
  • the arrangement order of the indication information of the aperiodic transmission measurement reference signals of the plurality of terminals Or the starting location is configured by the high layer signaling and delivered to each user terminal.
  • the uplink component carrier is determined by the public RNTI and the starting location, where different uplink component carriers correspond to different public RNTIs or the starting location.
  • the uplink component carrier is an uplink component carrier corresponding to a downlink component carrier where a PDSCH is scheduled to be transmitted by the DCI format that carries the indication information, or an uplink component carrier where a PUSCH scheduled by a DCI format that carries the indication information is located, or And an uplink component carrier corresponding to the downlink component carrier that carries the indication information.
  • the step of sending the configuration information of the measurement reference signal acyclically to the user terminal includes: When the downlink control information is sent by the base station, it indicates whether the user terminal performs the aperiodic transmission of the measurement reference signal and the mode of transmitting the measurement reference signal aperiodically; and configures and sends other parameters required for the aperiodic transmission of the measurement reference signal through the high layer signaling.
  • n ceil( ⁇ og 2 T) , ceil means round up, and T and n are integers from 1 to 6.
  • m ceil( ⁇ og 2 (T + 1)) , m is an integer from 1 to 6.
  • the mode for transmitting the measurement reference signal aperiodically includes one or more of the following: transmitting the aperiodic measurement reference signal in the last orthogonal frequency division multiplexing (OFDM) symbol of the uplink subframe, and the inverse of the uplink subframe
  • OFDM orthogonal frequency division multiplexing
  • the two OFDM symbols transmit the aperiodic measurement reference signal, do not precode the demodulation reference signal (DMRS) of the first slot of the uplink subframe, and/or the DMRS of the second slot of the uplink subframe, in the uplink subframe.
  • DMRS demodulation reference signal
  • the last and/or penultimate OFDM symbol transmits an aperiodic measurement reference signal and its transmission bandwidth is equal to the bandwidth occupied by the physical uplink shared channel (PUSCH) of the user terminal and the frequency domain position transmitted is also related to the frequency domain of the PUSCH.
  • the measurement reference signal is simultaneously transmitted on the DMRS of the first time slot of the uplink subframe and the DMRS of the second time slot of the uplink subframe, and the measurement reference signal and the uplink demodulation reference signal are orthogonally masked.
  • the code is code division multiplexed.
  • the user terminal determines to transmit the SRS in a mode that does not precode the DMRS of the first slot and/or the DMRS of the second slot, the user terminal does not precode the DMRS of the corresponding slot; when the user terminal is Simultaneous transmission of the DMRS of the first time slot and the DMRS of the second time slot
  • the transmitted SRS and the uplink demodulation reference signal are code-multiplexed by using an orthogonal mask, which is: [+1, +1] or [+1, -1].
  • the present invention provides a base station for measuring a signaling configuration of a reference signal, which is configured to: notify a user terminal to send an aperiodic measurement reference signal, and send configuration information of the measurement reference signal to a user terminal, so as to enable The user terminal aperiodicly measures the reference signal on the corresponding uplink component carrier.
  • the base station is configured to send the configuration information that sends the measurement reference signal to the user terminal in the following manner: the base station sends a non-periodic transmission measurement reference signal to one or more user terminals by using a physical downlink shared channel (PDSCH) Or the base station is configured to send configuration information of the measurement reference signal to the user terminal according to the following manner: the base station carries the indication information of the aperiodic transmission measurement reference signal of the user terminal by using the downlink control information, And configuring, by the high layer signaling, the N resources or modes for the aperiodic transmission of the measurement reference signal, or the base station is configured to send the configuration information of the measurement reference signal to the user terminal in the following manner: When the downlink control information is sent, the user terminal is instructed whether to perform the aperiodic transmission of the measurement reference signal and the mode in which the measurement reference signal is sent aperiodically; and the other parameters required for the aperiodic transmission of the measurement reference signal are configured and sent through the high layer signaling.
  • PDSCH
  • the present invention provides a user terminal for measuring a signaling configuration of a reference signal, which is configured to: receive a notification sent by a base station to send an aperiodic measurement reference signal, and receive a non-periodic measurement reference signal sent by a base station to a user terminal. Configuration information, and aperiodic measurement reference signals on corresponding uplink component carriers.
  • the technical solution of the present invention can implement the aperiodic transmission of the SRS by the terminal, improve the utilization of the SRS resource, and improve the flexibility of resource scheduling.
  • FIG. 1 is a schematic diagram of a time domain position of a demodulation reference signal of the prior art
  • FIG. 2 is a schematic diagram of a multiplexing process of a PDCCH DCI
  • FIG. 3 is a frequency domain of a prior art UE that allocates different S ⁇ S to transmit SRS.
  • Initial position diagram 4 is a schematic view of a comb structure of a prior art SRS
  • FIG. 5 is a flow chart corresponding to the first embodiment of the method of the present invention
  • FIG. 6 is a flow chart corresponding to the second embodiment of the method of the present invention
  • a preferred embodiment of the present invention provides a signaling configuration system for measuring a reference signal, including a base station and a user terminal.
  • the base station is configured to: notify a user terminal to send an aperiodic measurement reference signal, and send the to the user terminal to send the The configuration information of the reference signal is measured; the user terminal is set to: aperiodic measurement reference signal on the corresponding uplink component carrier.
  • the base station may, but is not limited to, send configuration information for transmitting the measurement reference signal to the user terminal by using any one of the following methods:
  • the base station sends configuration information of the aperiodic transmission measurement reference signal to one or more user terminals through the PDSCH.
  • the scheduling information of the PDSCH is carried by the downlink control information format format 1A or format 1C, and the cyclic redundancy check (CRC) of the downlink control information format format 1A or format 1C is performed using the reference signal-radio network temporary identifier value (SRS-RNTI).
  • the scrambling is performed; wherein the SRS-RNTI can use the reserved RNTI in Table 1, which is used to scramble the cyclic redundancy check (CRC) of the downlink control information format.
  • the SRS-RNTI is a public RNTI or a user-specific RNTI.
  • the downlink control information format is transmitted on a public or private search space; when the CRC of the downlink control information format is scrambled using a public RNTI The downlink control information format is transmitted on the public search space.
  • the data block of the PDSCH includes a data packet of the user terminal corresponding to the user-specific RNTI, and the data packet includes at least configuration information of the aperiodic transmission measurement reference signal of the user terminal; when the downlink is scrambled using the public RNTI
  • the data block of the PDSCH includes data packets of one or more user terminals, and the data packet of each user terminal includes at least configuration information of the aperiodic transmission measurement reference signal of the user terminal and the user terminal.
  • Proprietary RNTI information is used to control the CRC of the downlink control information format.
  • the user terminal When the CRC of the downlink control information format is scrambled by the public RNTI, the user terminal blindly detects the downlink control information format that is scrambled by the public RNTI in the corresponding search space, and after detecting the format of the downlink control information, according to the bearer
  • the scheduling information is obtained by obtaining the PDSCH at the corresponding location. If the transport block carried by the PDSCH includes the RNTI specific to the user terminal, it is determined that the measurement reference signal needs to be sent aperiodically, and the aperiodic transmission is performed according to the corresponding configuration information.
  • the configuration information of the aperiodic transmission measurement reference signal carried by the PDSCH includes one or more of the following information: cyclic shift information, a frequency domain position, an uplink component carrier index, a bandwidth, a position of a frequency comb, and a transmission measurement reference signal. Mode indication and number of transmissions.
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or is a high layer signaling or The uplink component carrier indicated by other downlink control information formats;
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or multiple uplinks
  • the plurality of uplink component carriers corresponding to the component carrier index, that is, the measurement reference signals are sent aperiodically on the plurality of uplink component carriers.
  • the base station carries the indication information of the aperiodic transmission measurement reference signal of the user terminal by using the downlink control information, and configures, by the high layer signaling, the N resources or modes for transmitting the measurement reference signal aperiodically;
  • N is an integer from 1 to 20.
  • Each of the N resources or modes includes one or more of the following information: cyclic shift information, frequency domain location, user-specific bandwidth, frequency comb location, SRS bandwidth configuration information And SRS transmitting a subframe, period configuration information, and a mode indication for transmitting the measurement reference signal.
  • the k-bit is used in the downlink control information to indicate the indication information of the aperiodic transmission measurement reference signal, where the indication information indicates whether the terminal needs to be on the corresponding uplink component carrier.
  • the indication information of the reference signal (a) using k bits in the downlink control information to indicate indication information of the aperiodic transmission measurement reference signal, the indication information indicating whether the terminal needs to transmit the measurement reference signal aperiodically and using the N resources or Which one of the modes is sent, and when the measurement reference signal is sent aperiodically on each uplink component carrier, the measurement reference signal is sent aperiodically according to the k-bit indication information;
  • each indication information is represented by k-bit signaling, and the k-bit signaling indicates whether the terminal needs to be aperiodic on the corresponding uplink component carrier.
  • the relationship between k and N is: k two ceil ( ⁇ og 2 (N + 1)), and ceil means rounding up.
  • the indication information of the aperiodic transmission measurement reference signal is carried in the DCI Format field of the user-specific or in the DCI Format field dedicated to carrying the information of the aperiodic measurement reference signal.
  • the user-specific DCI Format includes a user-specific DCI Format for uplink scheduling and a user-specific DCI Format for downlink allocation; a user-specific DCI Format for uplink scheduling in one subframe
  • the user terminal sends a measurement reference signal to the user terminal that is carried by any one of the terminals.
  • the instructions are parsed.
  • the user-specific DCI Format is used when the user-specific DCI Format in one subframe and the DCI Format dedicated to carrying the aperiodic measurement reference signal information carry the indication information of the aperiodic transmission measurement reference signal of the same user terminal.
  • the indication information carried in the medium and the indication information carried in the DCI Format dedicated to carrying the non-periodic measurement reference signal information are configured with the same value.
  • the DCI Format dedicated to carrying the aperiodic measurement reference signal information scrambles the cyclic redundancy check CRC of the downlink control information format using a public RNTI or a proprietary RNTI.
  • the user-specific RNTI is used to perform power interference on the cyclic redundancy check CRC of the DCI Format;
  • the indication information of the periodic measurement measurement reference signal is carried in the DCI Format field dedicated to carrying the information of the aperiodic measurement reference signal, if the DCI Format includes indication information of the aperiodic transmission measurement reference signal of the multiple user terminals, the user is used.
  • the public RNTI scrambles the cyclic redundancy check CRC of the DCI Format.
  • the DCI Format contains only the indication information of the aperiodic transmission measurement reference signal of the user terminal, the user-owned RNTI or the proprietary RNTI is used for the DCI.
  • the cyclic redundancy check CRC of Format is added to 4 especially.
  • the DCI Format dedicated to carrying the aperiodic measurement reference signal information carries the indication information of the aperiodic transmission measurement reference signal of the plurality of user terminals
  • the arrangement order of the indication information of the aperiodic transmission measurement reference signals of the plurality of terminals Or the starting position is configured and delivered through high-level signaling.
  • the uplink component carrier is determined by the public RNTI and the starting location, where different uplink component carriers correspond to different public RNTIs or the starting location.
  • the uplink component carrier is an uplink component carrier corresponding to a downlink component carrier where a PDSCH is scheduled to be transmitted by the DCI format that carries the indication information, or an uplink component carrier where a PUSCH scheduled by a DCI format that carries the indication information is located, or And an uplink component carrier corresponding to the downlink component carrier that carries the indication information.
  • (C) a mode indicating whether the user terminal performs the aperiodic transmission of the measurement reference signal and the aperiodic transmission of the measurement reference signal when the downlink control information is sent by the base station; and configuring and transmitting the aperiodic transmission measurement reference signal by using the high layer signaling parameter.
  • ceil means round up, and T and n are integers from 1 to 6.
  • T and n are integers from 1 to 6.
  • the mode of transmitting the measurement reference signal aperiodically includes one or more of the following: transmitting the aperiodic measurement reference signal in the last OFDM symbol of the uplink subframe, and uplinking
  • the penultimate OFDM symbol of the subframe transmits the aperiodic measurement reference signal, does not precode the DMRS of the first slot of the uplink subframe and/or the DMRS of the second slot of the uplink subframe, and is in the uplink subframe
  • the last and/or the second last OFDM symbol transmits the aperiodic measurement reference signal and the transmission bandwidth is equal to the bandwidth occupied by the PUSCH of the user terminal, and the frequency domain position of the transmission is also the same as the frequency domain position of the PUSCH, in the uplink subframe.
  • the DMRS of the first time slot and the DMRS of the second time slot of the uplink subframe simultaneously transmit the measurement reference signal and measure the transmission
  • the reference signal and the uplink demodulation reference signal are code division multiplexed with an orthogonal mask.
  • the transmitted SRS and the uplink demodulation reference signal are code-multiplexed by using an orthogonal mask, which is: [+1, +1] or [+1, -1].
  • the present invention provides a base station for measuring a signaling configuration of a reference signal, which is configured to: notify a user terminal to send an aperiodic measurement reference signal, and send configuration information of the measurement reference signal to a user terminal, so as to enable The user terminal aperiodicly measures the reference signal on the corresponding uplink component carrier.
  • the base station is configured to send the configuration information that sends the measurement reference signal to the user terminal in the following manner: the base station sends an aperiodic transmission measurement reference signal to one or more user terminals by using a physical downlink shared channel (PDSCH) Configuration information.
  • PDSCH physical downlink shared channel
  • the base station is configured to send configuration information of the measurement reference signal to the user terminal according to the following manner: the base station carries the indication information of the aperiodic transmission measurement reference signal of the user terminal by using the downlink control information, and Configure N resources or modes for the user terminal to send measurement reference signals aperiodically.
  • the base station is configured to send configuration information to send the measurement reference signal to the user terminal in the following manner: when the downlink control information is sent by the base station, indicate whether the user terminal performs the aperiodic transmission measurement reference signal and the aperiodic transmission measurement reference signal Mode; and configure and send other parameters required for aperiodic measurement reference signals through high-level signaling.
  • the present invention provides a user terminal for measuring a signaling configuration of a reference signal, which is configured to: receive a notification sent by a base station to send an aperiodic measurement reference signal, and receive a non-periodic measurement reference signal sent by a base station to a user terminal. Configuration information, and aperiodic measurement reference signals on corresponding uplink component carriers.
  • the present invention provides a signaling configuration method for measuring a reference signal, and the base station notifies the user terminal to transmit the aperiodic measurement reference signal, and sends the configuration information of the measurement reference signal to the user terminal.
  • the following is a detailed description of the first embodiment of the present invention, as shown in FIG.
  • Step 101 The base station sends configuration information of a non-periodical transmission measurement reference signal to one or more user terminals through the PDSCH;
  • the scheduling information of the PDSCH is carried by the downlink control information format format 1A or format 1C, and the cyclic redundancy check CRC of the downlink control information format format 1A or format 1C is scrambled by using the SRS-RNTI; the foregoing SRS-RNTI is public RNTI or user-specific RNTI.
  • the data block of the PDSCH carrying the configuration information of the aperiodic transmission measurement reference signal includes one or more data packets of the user terminal, and the data packet of each user terminal includes at least the non-user terminal Periodically transmitting configuration information of the measurement reference signal and RNTI information specific to the user terminal; at this time, format 1A or format 1C carrying the PDSCH is transmitted on the public search space; when the user-specific RNTI is used to scramble the CRC, carrying the non- The data block of the PDSCH periodically transmitting the configuration information of the measurement reference signal includes a data packet of the user terminal corresponding to the user-specific RNTI, and the data packet includes at least configuration information of the aperiodic transmission measurement reference signal of the user terminal.
  • the configuration information of the aperiodic transmission measurement reference signal carried in the PDSCH includes one or more of the following information: cyclic shift information, frequency domain position, bandwidth, uplink component carrier index, frequency comb position, and transmission measurement reference signal Mode indication and number of transmissions.
  • the mode of transmitting the measurement reference signal aperiodically includes one or more of the following: transmitting the aperiodic measurement reference signal in the last OFDM symbol of the uplink subframe, and transmitting the aperiodic measurement reference signal in the penultimate OFDM symbol of the uplink subframe Not precoding the DMRS of the first slot of the uplink subframe and/or the DMRS of the second slot of the uplink subframe, and transmitting the aperiodic measurement of the last and/or the last OFDM symbol of the uplink subframe
  • the reference signal and its transmission bandwidth is equal to the bandwidth occupied by the PUSCH of the user terminal, and the frequency domain location of the transmission is also the same as the frequency domain location of the PUSCH, the DMRS in the first slot of the uplink subframe, and the second subframe of the uplink subframe.
  • Step 102 The user terminal blindly detects the format 1A or the format 1C in the search space, and determines whether the aperiodic transmission of the SRS is required according to the scheduling information of the bearer. If yes, go to step 103. Otherwise, go to step 104. Specifically, when using public When the RNTI scrambles the CRC, the user terminal blindly detects the format 1A or format 1C scrambled by the public RNTI in the corresponding search space.
  • the PDSCH scheduling information according to the bearer is in the corresponding location.
  • the PDSCH is obtained, and the RNTI information specific to the user terminal is searched for in the transport block carried by the PDSCH. If the RNTI specific to the user terminal is included, it is determined that the measurement reference signal needs to be sent aperiodically.
  • the user-specific RNTI is used to scramble the CRC, if the user terminal blindly detects the format 1A or format 1C scrambled by the user-specific RNTI on the corresponding search space, it is determined that the measurement reference signal needs to be transmitted aperiodically.
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the uplink component carrier index; when the configuration information does not include the uplink component carrier index, the user terminal
  • the uplink component carrier that transmits the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or the uplink component carrier indicated by the high layer signaling or other downlink control information format;
  • the uplink component carrier that the user terminal sends the measurement reference signal aperiodically is the uplink component carrier corresponding to the downlink component carrier where the PDSCH carrying the configuration information is located, or is corresponding to multiple uplink component carrier indexes.
  • Step 103 The user terminal performs the aperiodic transmission of the SRS according to the corresponding configuration information. If the user terminal determines, according to the indication of the configuration information, the DMRS of the first time slot and/or the DMRS of the second time slot are not precoded.
  • the user terminal When the SRS is transmitted, the user terminal does not pre-code the DMRS of the corresponding time slot (this is equivalent to performing SRS transmission at the symbol position); if the user terminal determines to use the first one according to the indication of the configuration information
  • the user terminal performs code division multiplexing on the transmitted SRS and the uplink demodulation reference signal by using an Orthogonal Cover Code.
  • the orthogonal mask is: [+1, +1] or [+1, -1].
  • the second embodiment includes the following steps: Step 201: The base station carries the indication information of the aperiodic transmission measurement reference signal of the user terminal by using the downlink control information, and configures N for the aperiodic transmission for the user terminal by using the high layer signaling.
  • the k-bit is used in the downlink control information to indicate the indication information of the aperiodic transmission measurement reference signal, where the indication information indicates the Whether the terminal needs to send the measurement reference signal and use which of the N resources (or modes) to transmit on the corresponding uplink component carrier; when the user terminal occupies multiple (such as L) uplink component carriers, It is limited to indicate the resource (or mode) for transmitting the SRS on each uplink component carrier in the following manner: (a) using k bits to indicate indication information of aperiodic transmission measurement reference signal, for each uplink component carrier according to the k-bit Instructing to send the SRS aperiodically, that is, according to its indication, it is judged whether it needs to be entered.
  • Non-Week The measurement reference signal is transmitted and which of the N resources (or modes) is used for transmission.
  • each indication information is represented by k-bit signaling, that is, an indication that the user terminal needs to transmit the measurement reference signal aperiodically is required by using L k bits.
  • Information for example, the first k-bit indicates whether the user terminal needs to perform aperiodic transmission of the SRS on the first uplink component carrier and which of the N resources (or modes) to use for transmission, and the second k-bit indicates Whether the user terminal needs to perform aperiodic transmission of the SRS on the second uplink component carrier and which of the N resources (or modes) to use for transmission, and so on.
  • the indication information of the aperiodic transmission measurement reference signal is carried in a user-specific DCI Format field or in a DCI Format field dedicated to carrying aperiodic measurement reference signal information.
  • the CRC of the DCI Format is scrambled by using the user-specific RNTI; when the indication information of the measurement reference signal is sent periodically is carried in
  • the CRC of the DCI Format is added by using the public RNTI of the user.
  • the cyclic redundancy check CRC of the DCI Format may be scrambled using the user-owned RNTI or the proprietary RNTI.
  • the DCI Format dedicated to carrying the aperiodic measurement reference signal information carries the indication information of the aperiodic transmission measurement reference signal of the multiple terminals
  • the arrangement order of the indication information of the aperiodic transmission measurement reference signals of the multiple terminals starts from The starting position can be configured and delivered through high-level signaling.
  • the base station sends a high-level signaling indication to the N resources (or modes) that can be used for aperiodic transmission of the measurement reference signal, and each resource (or mode) includes one or more of the following information: cyclic shift information, frequency domain location User-specific bandwidth, frequency comb location, SRS bandwidth configuration information, SRS transmission subframe or period configuration information, and mode indication of transmitting measurement reference signals.
  • the mode of transmitting the measurement reference signal aperiodically includes one or more of the following: transmitting the aperiodic measurement reference signal in the last OFDM symbol of the uplink subframe, and the second to last in the uplink subframe
  • the OFDM symbol transmits the aperiodic measurement reference signal, does not precode the DMRS of the first slot of the uplink subframe and/or the DMRS of the second slot of the uplink subframe, and the last and/or the last of the uplink subframe
  • the two OFDM symbols transmit the aperiodic measurement reference signal and the transmission bandwidth is equal to the bandwidth occupied by the PUSCH of the user terminal, and the frequency domain position of the transmission is also the same as the frequency domain position of the PUSCH, in the first time slot of the uplink subframe.
  • the DMRS simultaneously transmits the SRS on the DMRS of the second time slot of the uplink subframe, and performs code division multiplexing on the transmitted SRS and the uplink demodulation reference signal by using an Orthogonal Cover Code.
  • Step 202 The user terminal blindly detects the DCI Format on the search space, and determines whether the aperiodic transmission of the SRS is required according to the indication information of the non-periodous transmission measurement reference signal of the bearer. If yes, go to step 203. Otherwise, go to step 204.
  • the user terminal blindly detects the DCI Format scrambled by the proprietary RNTI in the corresponding search space, and judges according to the indication information carried therein. Whether it is necessary to send the SRS acyclically and which of the N resources (or methods) to use.
  • Step 203 The user terminal performs the aperiodic transmission of the SRS according to the resource (or manner) indicated by the indication information.
  • the user-specific DCI Format in one subframe and the DCI Format dedicated to the non-periodic measurement reference signal information carry the same user.
  • the terminal sends the indication information of the measurement reference signal aperiodically
  • the indication information carried in the user-specific DCI Format and the indication information carried in the DCI Format dedicated to the non-periodic measurement reference signal information are configured with the same value, and the user terminal
  • the indication information of the aperiodic transmission measurement reference signal carried in the user-specific DCI Format is parsed.
  • the indication information of the aperiodic transmission measurement reference signal carried in the user-specific DCI Format cannot be correctly parsed, it is dedicated to DCI carrying non-periodic measurement reference signal information
  • the indication information of the acyclic transmission measurement reference signal carried in the Format is parsed.
  • the user-specific DCI Format includes user-specific DCI Format for uplink scheduling and user-specific DCI Format for downlink allocation; user-specific DCI Format and user for uplink scheduling in one subframe
  • the proprietary DCI format for downlink allocation carries the indication information of the aperiodic transmission measurement reference signal of the same user terminal
  • the user terminal performs the indication information of the aperiodic transmission measurement reference signal of the user terminal carried by any one of the user terminals. Analysis.
  • the uplink component carrier position of the aperiodic transmission SRS may be determined according to the following method: Mode 1: The uplink component carrier is determined by the public RNTI and the starting position, where The different uplink component carriers correspond to different common RNTIs or the starting location.
  • the second component carrier is the uplink component carrier corresponding to the downlink component carrier of the PDSCH that is scheduled by the DCI format that carries the indication information, or the uplink component carrier where the PUSCH that is scheduled by the DCI format that carries the indication information is located, or And an uplink component carrier corresponding to the downlink component carrier that carries the indication information.
  • the uplink component carrier corresponding to the downlink component carrier is configured by a system message block, such as SIB 2, or configured by higher layer signaling.
  • the resources (or modes) used for transmitting the SRS on each of the uplink component carriers may be determined according to the indication information in the manner described in step 201. If the user terminal determines to transmit the SRS in a mode that does not precode the DMRS of the first slot and/or the DMRS of the second slot according to the indication of the downlink control information, the user terminal does not pre-determine the DMRS of the corresponding slot.
  • Step 204 Continue to blindly detect the data of the next subframe. As shown in FIG.
  • Step 301 A mode in which the base station sends the downlink control information to indicate whether the user terminal performs the aperiodic transmission of the SRS and the aperiodic transmission of the SRS, and configures and sends the aperiodic by using the high layer signaling.
  • Other parameters required to send SRS may be, but is not limited to, the following two types:
  • the mode for transmitting the measurement reference signal in a non-periodic manner in an uplink subframe is T, and the mode of transmitting the measurement reference signal in a non-periodic manner is indicated by using n bits.
  • the mode includes one or more of the following: transmitting an aperiodic measurement reference signal in a last OFDM symbol of an uplink subframe, transmitting aperiodic measurement reference signal in a second to last OFDM symbol of an uplink subframe, and not transmitting an aperiodic subframe in an uplink subframe
  • the DMRS of the first time slot and/or the DMRS of the second time slot of the uplink subframe are precoded, and the aperiodic measurement reference signal is transmitted in the last and/or second to last OFDM symbols of the uplink subframe and the transmission bandwidth thereof
  • the bandwidth occupied by the PUSCH of the user equipment is equal to the frequency domain location of the PUSCH, and the DMRS of the first time slot of the uplink subframe
  • the SRS is transmitted and the transmitted SRS and the uplink demodulation reference signal are code-multiplexed by using an Orthogonal Cover Code.
  • the other parameters that the base station configures and sends the aperiodic SRS through the high-layer signaling include one or more of the following information: cyclic shift information, frequency domain location, uplink component carrier index, user-specific Some bandwidth, frequency comb position, SRS bandwidth configuration information, SRS transmission subframe and period configuration information.
  • Step 302 The user terminal performs blind detection on the downlink control information. If the downlink control information sent by the base station is detected as the control information of the user terminal, the user terminal determines whether it is necessary to perform the aperiodic transmission SRS according to the indication in the downlink control information.
  • Step 303 The user terminal determines the mode of sending the SRS in a non-period according to the indication of the downlink control information, and determines other parameters according to the received high layer signaling, and sends the SRS according to the indicated mode. If the user terminal determines to transmit the SRS in a mode that does not precode the DMRS of the first slot and/or the DMRS of the second slot according to the indication of the downlink control information, the user terminal does not pre-determine the DMRS of the corresponding slot.
  • Step 304 Continue to blindly detect the data of the next subframe.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein.
  • the steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps are fabricated as a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the present invention can realize non-periodic transmission of SRS by a terminal, improves utilization of SRS resources, and improves flexibility of resource scheduling.

Landscapes

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

Abstract

本发明公开了一种测量参考信号的信令配置方法,该方法包括:基站通知用户终端非周期发送测量参考信号,并向用户终端下发非周期发送测量参考信号(SRS)的配置信息。本发明还公开了一种用于测量参考信号的信令配置的基站和一种用于测量参考信号的信令配置的用户终端。本发明可实现终端非周期发送SRS,改善了SRS资源的利用率,提高了资源调度的灵活性。

Description

一种测量参考信号的信令配置系统及方法
技术领域 本发明涉及通信领域, 尤其是涉及一种测量参考信号 ( Sounding Reference Signal, 简称为 SRS ) 的信令配置系统及方法。
背景技术
长期演进(Long Term Evolution, 简称为 LTE ) 系统的上行物理信道包 含物理随机接入信道( Physical Random Access Channel, 简称为 PRACH ) 、 物理上行共享信道( Physical Uplink Shared Channel, 简称为 PUSCH )和物理 上行控制信道( Physical Uplink Control Channel, 简称为 PUCCH ) 。 其中, PUSCH有两种不同的循环前缀(Cyclic Prefix, 简称为 CP )长度, 分别是普 通循环前缀(Normal Cyclic Prefix, 简称为 Normal CP ) 和扩展循环前缀 ( Extended Cyclic Prefix, 简称为 Extended CP ) 。 PUSCH的每个发送子帧 ( Subframe )由两个时隙(Slot )组成, 对于不同的循环前缀长度, 解调参考 信号 ( Demodulation Reference Signal, 简称为 DMRS )在子帧中所处的位置 会不一样, 图 1是根据现有技术的解调参考信号的时域位置示意图。 如图 1 所示, 每个子帧含有两个 DMRS符号, 其中, 图 1 ( a )是釆用普通循环前 缀时, DMRS 时域位置的示意图, 每个子帧含有 14 个正交频分复用 ( Orthogonal Frequency Division Multiplexing, 简称为 OFDM )符号, 14个 OFDM符号中包括 DMRS符号, OFDM符号代表一个子帧的时域位置, 图 1 ( b )为釆用扩展循环前缀时, DMRS时域位置的示意图, 每个子帧含有 12 个时域的 OFDM符号。 在 LTE系统中, 物理下行控制信道( Physical Downlink Control Channel, 简称为 PDCCH )用于承载上行和下行调度信息, 以及上行功率控制信息。 基站(e-Node-B, 简称为 eNB )可以通过下行控制信息配置用户终端 (User Equipment, 简称为 UE ) , 或者用户终端接受高层( higher layers ) 的配置, 也称为通过高层信令来配置 UE。 下行控制信息 ( Downlink Control Information, 简称为 DCI )格式( format ) 包括 DCI format 0、 1、 1A、 1B、 1C、 1D、 2、 2A、 3和 3A等。 其中,
DCI format 0用于指示 PUSCH的调度;
DCI format 1, 1A, IB, 1C和 ID用于单传输块的物理下行共享信道 ( Physical Downlink Shared Channel , 简称为 PDSCH ) 的不同传输模式;
DCI format 2和 2A用于下行 PDSCH空分复用的不同传输模式;
DCI format 3和 3A用于 PUCCH和 PUSCH的功率控制指令的传输。 上述 DCI format 0, 1A, 3和 3A的传输块大小一样, 其中 DCI format 0 和 1A釆用 1比特进行格式区分。
DCI format 3格式如下:
-发射功率控制命令 1, 发射功率控制命令 2,..., 发射功率控制命令 N
L
其中, N = 'format 0 格式 0加循环冗余校验 ( Cyclical Redundancy
2
Check, 简称为 CRC)前的 bit数目 (包括附加的填充位) , 高层给的参数 tpc-Index 决定了给定 UE的发射功率控制命令 ( TPC command ) 。
format 0 -'format 0 , DCI format 3将附加 lbit'O'
2 关于 LTE系统中 PDCCH的盲检测的过程简单描述如下, 控制信道单元 ( Control Channel Element , 简称为 CCE )是承载 PDCCH资源的最小单元, 控制区域由一系列 CCEs组成。
PDCCH盲检范围由搜索空间定义,搜索空间分公共搜索空间和 UE专用 搜索空间。 搜索空间 Si) 定义为:
Figure imgf000004_0001
其中, J为 CCE聚合等级, e{l,2,4,8}, 对公共搜索空间, =0, 即从 CCE=0~15中搜索; 对 UE专用搜索空间, iK Umodi), 7_1 =¾NTI≠0 , ^ = 39827 , = 65537 , A = L"s/2」, "s表示时隙编号 0~19。 / = 0,---,L-l , m = 0,--M(L)- M(i) 是搜索空间中 给定后 PDCCH候检集(candidates) 的数量。 其中 , wRNTI表示无线网络临时标识值 ( Radio Network Temporary Identifier, 简称为 RNTI ) 。 所述 NTI 对应下述无线网络临时标识之中的一 个值: 系统信息 RNTI ( System Information-RNTI, 简称为 SI-RNTI ) , 随机接入 RNTI (Random Access-RNTI , 简称为 RA-RNTI) , 呼叫 RNTI (Paging-RNTI , 简称为 P-RNTI) , 'J、区 RNTI(Cell-RNTI , 简称为 C-RNTI ) , 半静态调度 RNTI(Semi-Persistent Scheduling RNTI , 简称为 SPS-RNTI) , 以及 临时小区 RNTI ( Temporary C-RNTI ) 。 所述 ¾NTI具体选择哪类 RNTI由高层信令配置, 具体取值也由相应信令 和数据指定。 RNTI的取值参见下面的表 1 所示。 根据聚合等级定义的搜索 空间参见下面的表 2所示, UE盲检时,根据下行链路的传输模式对应的 DCI format进行检测。各下行控制信息 DCI的 16比特 CRC用上述的 RNTI加扰。 不同的 UE可配置不同的 RNTI对 CRC进行加扰, 从而可以区分不同 UE的 DCI。 表 1 : RNTI值
Figure imgf000005_0001
FFFE P-RNTI
FFFF SI-RNTI
表 2: UE监测的 PDCCH candidates
Figure imgf000006_0001
在 LTE系统中 , DCI的复用过程如图 2所示, 每一个 DCI对应一个媒 体存取标识号( Medium Access Control identifier, MAC id ),即对应一个 RNTI, 将 DCI的原始信息比特添加经过 RNTI加扰后的 CRC后, 再经过信道编码 和速率匹配, 从而将 PDCCH 的多个 DCI 复用在一起。 系统信息 (System Information, 简称为 SI)是通过 DCI format 1A/1C进行资源分配的。 SI的盲检 测只在公共搜索空间中进行, 并且 SI的 DCI的 CRC釆用唯一的 SI-RNTI加 扰。 LTE系统的广播信息分为主消息块( Master Information Block , 简称为
MIB )和系统消息块( System Information Block, 简称为 SIB ) , 其中, MIB 在物理广播信道( Physical Broadcast Channel, 简称为 PBCH ) 上传输, 以及 SIB在 PDSCH上传输(又称为调度消息 ( Scheduled Information, SI ) ) 。
SRS是一种用户终端与基站间用来测量无线信道状态信息( Channel State Information, 简称为 CSI )的信号。 在长期演进系统中, UE按照 eNB指示的 带宽、 频域位置、 序列循环移位、 周期和子帧偏置等参数, 定时在发送子帧 的最后一个数据符号上发送上行 SRS。 eNB根据接收到的 SRS判断 UE上行 的 CSI, 并根据得到的 CSI进行频域选择调度及闭环功率控制等操作。 在 LTE系统中,UE发送的 SRS序列是通过对一条根序列 O)在时域进 行循环移位 得到的。 对同一条根序列进行不同的循环移位 就能够得到 不同的 SRS序列, 并且得到的这些 SRS序列之间相互正交, 因此, 可以将 这些 SRS序列分配给不同的 UE使用, 以实现 UE间的码分多址。 在 LTE系 统中, SRS序列定义了 8个循环移位 通过下面的公式( 1 )给出: ... ...公式(1 )
Figure imgf000007_0001
其中, n RS由 3bit的信令来指示, 分别为 0、 1、 2、 3、 4、 5、 6和 7。 也 就是说, 在同一时频资源下, 小区内的 UE有 8个可用的码资源, eNB最多 可以配置 8个 UE在相同的时频资源上同时发送 SRS。 公式( 1 )可以看作将 SRS序列在时域等间隔分为 8份, 但由于 SRS序列长度为 12的倍数, 所以 SRS序列的最小长度为 24。 在 LTE 系统中, SRS的频域带宽釆用树型结构进行配置。 每一种 SRS 带宽配置 ( SRS bandwidth configuration )对应一个树形结构, 最高层 (或称 为第一层)的 SRS带宽( SRS-Bandwidth )对应该 SRS带宽配置的最大 SRS 带宽,或称为 SRS带宽范围。 UE根据基站的信令指示,计算得到自身的 SRS 带宽后,再根据 eNB发送的上层信令频域位置 ¾^来确定自身发送 SRS的频 域初始位置。 图 3是现有技术的分配不同 ¾^的 UE发送 SRS的频域初始位 置示意图。 如图 3所示, 分配了不同 ¾^的 UE将在小区 SRS带宽的不同区 域发送 SRS, 其中, UE1根据 ¾^ =0确定发送 SRS的频率初始位置, UE2 根据" 确定发送 SRS的频率初始位置, UE3 Wn^ = 确定发送 SRS 的频率初始位置, 以及 UE4根据 ^ =6确定发送 SRS的频率初始位置。
SRS所使用的序列从解调导频序列组中选出, 当 UE的 SRS带宽为 4个 资源块( Resource Block, 简称为 RB ) 时, 使用长度为 2个 RB的电脑生成 ( Computer Generated, 简称为 CG ) 的序列; 当 UE的 SRS带宽大于 4个 RB时, 使用对应长度的 Zadoff-Chu序列。 另外, 在同一个 SRS带宽内, SRS的子载波(sub-carrier )是间隔放置 的, 也就是说, SRS的发送釆用梳状结构, LTE系统中的频率梳(frequency comb ) 的数量为 2, 也对应于时域的重复系数值 ( Repetition Factor, 简称为 RPF ) 为 2。 图 4是现有技术的 SRS的梳状结构示意图, 如图 4所示, 每个 UE发送 SRS时 , 只使用两个频率梳中的一个 , comb=0或 comb=l。 这样 , UE根据 1比特的上层信令的频率梳(comb=0或 comb=l )位置指示, 只使 用频域索引为偶数或奇数的子载波发送 SRS。 这种梳状结构允许更多的 UE 在同一 SRS带宽内发送 SRS。 在同一 SRS带宽内, 多个 UE可以在同一个频率梳上使用不同的循环移 位, 然后通过码分复用发送 SRS, 也可以两个 UE在不同的频率梳上, 通过 频分复用发送 SRS。 举例来说, 在 LTE系统中, 在某个 SRS带宽(4个 RB ) 内发送 SRS的 UE, 可以使用的循环移位有 8个, 可以使用的频率梳为 2个, 所以说 UE总共有 16个可用来发送 SRS的资源, 也就是说, 在这一 SRS带 宽内, 最多可以同时发送 16个 SRS。 由于在 LTE系统中不支持上行单用户 多输入多输出 (Single User Multiple Input Multiple Output, 简称为 SU-MI
MO ) , UE在每一时刻只能有一根天线发送 SRS, 所以一个 UE只需要一个 SRS资源, 因此, 在上述 SRS带宽内, 系统最多可以同时复用 16个 UE。 高级 LTE ( LTE- Advanced, 简称为 LTE-A ) 系统是 LTE系统的下一代 演进系统, 在上行支持 SU-MIMO, 并且最多可以使用 4根天线作为上行发 射天线。也就是说, UE在同一时刻可以在多根天线上同时发送 SRS, 而 eNB 需要根据每根天线上收到的 SRS来估计每条信道上的状态。 在 LTE-A载波聚合场景下, 引入了多种载波类型。 LTE-A载波类型可 戈' J分为: 后向兼容载波 ( Backwards compatible carrier ) , 非后向兼容载波 ( Non-backwards compatible carrier )和扩展载波 ( Extension carrier )三种类 型。 扩展载波有两种含义: 1 )作为分量载波(Component carrier, 简称 CC ) 的一部分; 2 )作为一个独立的分量载波。 扩展载波不能独立工作, 必须属于 一组分量载波集里的一部分, 且此集合中的分量载波中至少有一个可以独立 工作。 扩展载波对于 LTE UEs是不可见的。 为了设计简单及考虑到各种可能的应用场景, 扩展载波极有可能配置成 没有 PDCCH。 那么扩展载波的系统信息对应的 DCI需要在其他分量载波上 传输。 此外, LTE-A还引入了驻留载波的概念, 即 UE初始接入的载波, 接 入成功后, 还可通过高层信令给 UE重新配置驻留载波, 以保证负载均衡。 在 LTE-A载波聚合场景下,定义了 PDCCH分量载波集(PDCCH CC set ), UE需要在 PDCCH CC set里进行盲检测;还定义了下行分量载波集( Downlink component carrier set, 简称为 DL CC set ) , UE的 PDSCH可以在 DL CC set 中任意 CC上发送。 在 LTE-A载波聚合场景下, 允许跨载波调度, 即某分量 载波上的 PDCCH可以调度多个分量载波上的 PDSCH或 PUSCH。 在现有的 LTE-A的研究中提出: 在上行通信中, 应该使用非预编码(即 天线专有 )的 SRS, 而对 PUSCH的 DMRS则进行预编码。 基站通过接收非 预编码的 SRS, 可估计出上行的原始 CSI, 而经过了预编码 DMRS则不能使 基站估计出上行原始的 CSI。 此时, 当 UE使用多天线发送非预编码的 SRS 时, 每个 UE所需要的 SRS资源都会增加, 也就造成了系统内可以同时复用 的 UE数量下降。 此外, 除了保留 LTE原有的周期(periodic )发送 SRS, 为 了改善 SRS资源的利用率, 提高资源调度的灵活性, 还可以通过下行控制信 息或者高层信令配置 UE非周期 (aperiodic )发送 SRS。 因此, 在 LTE-A系 统中有周期 SRS和非周期 SRS,如何合理设计下行控制信息或者高层信令配 置 SRS资源, 以实现更有效和及时地非周期发送 SRS, 同时节省信令开销, 减少 UE盲检的复杂度, 是一个待解决的问题。
发明内容 为了解决上述技术问题, 本发明提供一种测量参考信号的信令配置系统 及方法, 可解决现有技术中无法实现 UE非周期发送 SRS的问题。 本发明提供一种测量参考信号的信令配置方法, 包括: 基站通知用户终端非周期发送测量参考信号, 并向用户终端下发非周期 发送测量参考信号 (SRS ) 的配置信息。 向用户终端下发非周期发送测量参考信号的配置信息的步骤包括: 所述基站通过物理下行共享信道(PDSCH )向一个或多个用户终端下发 非周期发送测量参考信号的配置信息。 所述 PDSCH的调度信息由下行控制信息格式(format ) 1A或 format 1C 来承载, 且使用测量参考信号-无线网络临时标识值(SRS-RNTI )对下行控 制信息格式(format ) 的循环冗余校验 ( CRC )进行加扰; 其中, 控制信息 format为 format 1A或 format 1C; 所述 SRS-RNTI 为公有的无线网络临时标识值(RNTI )或用户专有的 RNTL 当使用用户专有的 RNTI加扰所述下行控制信息 format 1A或 format 1C 的 CRC时, 所述下行控制信息格式在公有或专有搜索空间上发送; 当使用公有的 RNTI加扰所述下行控制信息 format 1A或 format 1C的
CRC时, 所述下行控制信息格式在公有搜索空间上发送。 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时, 所述 PDSCH的数据块包括该用户专有的 RNTI对应的用户终端的数据包,所述数 据包至少包括所述用户终端的非周期发送测量参考信号的配置信息; 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,所述 PDSCH 的数据块包括一个或多个用户终端的数据包, 每个用户终端的数据包至少包 括该用户终端的非周期发送测量参考信号的配置信息和该用户终端专有的 RNTI信息。 所述的方法还包括: 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,用户终端在 对应搜索空间上盲检测使用公有的 RNTI加扰的下行控制信息格式, 当检测 到下行控制信息格式, 根据其承载的调度信息, 在相应的位置获得 PDSCH, 若所述 PDSCH承载的传输块包含该用户终端专有的 RNTI,则判定需要非周 期发送测量参考信号,按照相应的配置信息进行非周期发送,若所述 PDSCH 承载的传输块没有包含该用户终端专有的 RNTI, 继续盲检测下一个子帧的 数据; 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时,用户终 端在对应搜索空间上盲检测使用用户专有的 RNTI 加扰的下行控制信息格 式, 若用户终端在对应搜索空间上盲检测到使用用户专有的 RNTI加扰的下 行控制信息格式, 则判定需要非周期发送测量参考信号, 按照相应的配置信 息进行非周期发送, 若用户终端没有在对应搜索空间上盲检测到使用用户专 有的 RNTI加扰的下行控制信息格式, 继续盲检测下一个子帧的数据。 所述 PDSCH携带的非周期发送测量参考信号的配置信息包括以下信息 中的一种或多种: 循环移位信息、 频域位置、 上行分量载波索引、 带宽、 频 率梳的位置、 发送测量参考信号的模式指示及发送次数。 当所述配置信息中不包含上行分量载波索引时, 所述用户终端非周期发 送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量载 波对应的上行分量载波, 或者为高层信令或其他下行控制信息格式指示的上 行分量载波;
当所述配置信息中包含多个上行分量载波索引时, 所述用户终端非周期 发送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量 载波对应的上行分量载波, 或者为多个上行分量载波索引对应的多个上行分 量载波, 即在多个上行分量载波上非周期发送测量参考信号。 向用户终端下发非周期发送测量参考信号的配置信息的步骤包括: 所述基站通过下行控制信息携带用户终端的非周期发送测量参考信号的 指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测量参考 信号的资源或方式; 其中, N为 1至 20中的整数。 所述的 N个资源或方式中的每个资源或方式包括以下信息中的一种或多 种: 循环移位信息、 频域位置、 用户专有的带宽、 频率梳的位置、 SRS带宽 配置信息、 SRS发送子帧、 周期配置信息及发送测量参考信号的模式指示。 对于每个终端, 当用户终端占用一个上行分量载波时, 在下行控制信息 中使用 k比特表示非周期发送测量参考信号的指示信息, 该指示信息指示该 终端是否需要在相应的上行分量载波上非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送; 当用户终端占用多个上行分量载波时, 按照以下方式中的任一种指示在 各上行分量载波上非周期发送测量参考信号的指示信息: ( a )在下行控制信息中使用 k比特表示非周期发送测量参考信号的指示 信息, 该指示信息指示该终端是否需要非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送,在各上行分量载波上非周期发送测量 参考信号时均按所述 k比特的指示信息进行非周期发送测量参考信号;
( b )对于每个上行分量载波, 使用不同的指示信息分别指示,每个指示 信息均用 k比特信令表示, 所述 k比特信令指示该终端是否需要在对应的上 行分量载波上非周期发送测量参考信号以及使用所述 N个资源或方式中的哪 个进行发送; 其中, k为 1至 6中的整数。 所述 k和 N的关系为: k二 ceil(\og2 (N + 1)) , ceil表示向上取整。 所述非周期发送测量参考信号的指示信息承载在用户专有的下行控制信 息格式(DCI Format )域中, 或者承载在专用于承载非周期测量参考信号信 息的 DCI Format域中。 所述的方法还包括: 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户终端对所述用户专有的 DCI Format中承载的非周期发 送测量参考信号的指示信息进行解析。 所述用户专有的 DCI Format 包括用户专有的用于上行调度的 DCI Format及用户专有的用于下行分配的 DCI Format; 当一个子帧中的用户专有的用于上行调度的 DCI Format和用户专有的 用于下行分配的 DCI Format 中承载同一用户终端的非周期发送测量参考信 号的指示信息时, 所述用户终端对其中任一个承载的所述用户终端的非周期 发送测量参考信号的指示信息进行解析。 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户专有的 DCI Format中承载的指示信息和专用于承载非 周期测量参考信号信息的 DCI Format中承载的指示信息配置相同的取值。 所述专用于承载非周期测量参考信号信息的 DCI Format使用公有的 RNTI或专有的 RNTI对所述下行控制信息格式的循环冗余校验 CRC进行加 扰。 当所述非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format域中时,使用该用户专有的 RNTI对 DCI Format的循环冗余校验 CRC 进行力口扰; 当所述非周期发送测量参考信号的指示信息承载在专用于承载非周期测 量参考信号信息的 DCI Format域中时, 若该 DCI Format包含了多个用户终 端的非周期发送测量参考信号的指示信息, 则使用公有的 RNTI 对 DCI Format的循环冗余校验 CRC进行加扰, 若该 DCI Format仅包含一个用户终 端的非周期发送测量参考信号的指示信息, 则使用公有的 RNTI 或专有的 RNTI对 DCI Format的循环冗余校验 CRC进行加扰。 当釆用专用于承载非周期测量参考信号信息的 DCI Format承载多个用 户终端的非周期发送测量参考信号的指示信息时, 所述多个终端的非周期发 送测量参考信号的指示信息的排列顺序或起始位置通过高层信令配置并下发 至各用户终端。 所述上行分量载波由所述公有的 RNTI和所述起始位置确定, 其中, 不 同的上行分量载波对应不同的所述公有的 RNTI或所述起始位置。 所述上行分量载波为承载所述指示信息的 DCI format所调度的 PDSCH 所在下行分量载波对应的上行分量载波, 或者, 承载所述指示信息的 DCI format所调度的 PUSCH所在的上行分量载波, 或者, 承载所述指示信息的 下行分量载波对应的上行分量载波。 向用户终端下发非周期发送测量参考信号的配置信息的步骤包括: 基站下发下行控制信息时指示用户终端是否进行非周期发送测量参考信 号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发非周期 发送测量参考信号所需的其他参数。 使用 1比特指示用户终端是否需要非周期发送测量参考信号; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个, 使用 n比 特指示非周期发送测量参考信号的模式; 其中, n = ceil(\og2 T) , ceil表示向上取整, T和 n为 1至 6中的整数。 使用 m比特指示用户终端是否需要进行非周期发送 SRS以及非周期发 送 SRS的模式; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个; 其中, m = ceil(\og2(T + 1)) , m为 1至 6中的整数。 所述非周期发送测量参考信号的模式包括以下的一种或多种: 在上行子 帧的最后一个正交频分复用 (OFDM )符号发送非周期测量参考信号、 在上 行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、不对上行子帧的 第一个时隙的解调参考信号 (DMRS ) 和 /或上行子帧第二个时隙的 DMRS 进行预编码、 在上行子帧的最后一个和 /或倒数第二个 OFDM符号发送非周 期测量参考信号且其发送带宽等于该用户终端的物理上行共享信道 ( PUSCH )所占用的带宽且发送的频域位置也与 PUSCH的频域位置相同、 在上行子帧的第一个时隙的 DMRS与上行子帧第二个时隙的 DMRS上同时 发送测量参考信号且对发送的测量参考信号及上行解调参考信号釆用正交掩 码进行码分复用。 当用户终端确定釆用不对第一个时隙的 DMRS 和 /或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应时隙的 DMRS不进 行预编码; 当用户终端在第一个时隙的 DMRS和第二个时隙的 DMRS上同时发送
SRS时, 对发送的 SRS及上行解调参考信号釆用正交掩码进行码分复用, 所 述正交掩码为: [+1 , +1]或 [+1 , -1]。 本发明提供一种用于测量参考信号的信令配置的基站, 其设置为: 通知用户终端发送非周期测量参考信号, 以及向用户终端下发发送所述 测量参考信号的配置信息, 以使所述用户终端在对应的上行分量载波上非周期测量参考信号。 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过物理下行共享信道( PDSCH )向一个或多个用户终 端下发非周期发送测量参考信号的配置信息; 或者 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过下行控制信息携带用户终端的非周期发送测量参考 信号的指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测 量参考信号的资源或方式; 或者 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 基站下发下行控制信息时指示用户终端是否进行非周期发送测量 参考信号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发 非周期发送测量参考信号所需的其他参数。 本发明提供一种用于测量参考信号的信令配置的用户终端, 其设置为: 接收基站发送的发送非周期测量参考信号的通知, 接收基站向用户终端下发的发送非周期测量参考信号的配置信息, 以及 在对应的上行分量载波上非周期测量参考信号。 综上所述, 釆用本发明的技术方案, 可实现终端非周期发送 SRS, 改善 了 SRS资源的利用率, 提高了资源调度的灵活性。
附图概述 图 1是现有技术的解调参考信号的时域位置示意图; 图 2是 PDCCH DCI的复用过程示意图; 图 3是现有技术的分配不同 "^c的 UE发送 SRS的频域初始位置示意图; 图 4是现有技术的 SRS的梳状结构示意图; 图 5是本发明方法实施例一对应的流程图; 图 6是本发明方法实施例二对应的流程图; 图 7是本发明方法实施例三对应的流程图。
本发明的较佳实施方式 本发明提供一种测量参考信号的信令配置系统, 包括基站及用户终端; 基站设置为: 通知用户终端发送非周期测量参考信号, 以及向用户终端 下发发送所述测量参考信号的配置信息; 用户终端设置为: 在对应的上行分量载波上非周期测量参考信号。
基站可以但不限于通过以下方式中的任一种向用户终端下发发送测量参 考信号的配置信息:
( A )基站通过 PDSCH向一个或多个用户终端下发非周期发送测量参考 信号的配置信息。 PDSCH的调度信息由下行控制信息格式 format 1A或 format 1C来承载, 且使用参考信号-无线网络临时标识值 (SRS-RNTI )对下行控制信息格式 format 1A或 format 1C的循环冗余校验( CRC )进行加扰; 其中, SRS-RNTI可以使用表 1中预留 RNTI, 其用于对下行控制信息格 式(format ) 的循环冗余校验( CRC )进行加扰。 所述 SRS-RNTI为公有的 RNTI或用户专有的 RNTI。 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时,所述下 行控制信息格式在公有或专有搜索空间上发送; 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,所述下行控 制信息格式在公有搜索空间上发送。
当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时, 所述 PDSCH的数据块包括该用户专有的 RNTI对应的用户终端的数据包,所述数 据包至少包括所述用户终端的非周期发送测量参考信号的配置信息; 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,所述 PDSCH 的数据块包括一个或多个用户终端的数据包, 每个用户终端的数据包至少包 括该用户终端的非周期发送测量参考信号的配置信息和该用户终端专有的 RNTI信息。 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,用户终端在 对应搜索空间上盲检测使用公有的 RNTI加扰的下行控制信息格式, 当检测 到下行控制信息格式后,根据其承载的调度信息,在相应的位置获得 PDSCH, 若所述 PDSCH承载的传输块包含该用户终端专有的 RNTI,则判定需要非周 期发送测量参考信号, 按照相应的配置信息进行非周期发送, 否则, 继续盲 检测下一个子帧的数据; 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时,若用户 终端在对应搜索空间上盲检测到使用用户专有的 RNTI加扰的下行控制信息 格式, 则判定需要非周期发送测量参考信号, 按照相应的配置信息进行非周 期发送, 否则, 继续盲检测下一个子帧的数据。 所述 PDSCH携带的非周期发送测量参考信号的配置信息包括以下信息 中的一种或多种: 循环移位信息、 频域位置、 上行分量载波索引、 带宽、 频 率梳的位置、 发送测量参考信号的模式指示及发送次数。 当所述配置信息中不包含上行分量载波索引时, 所述用户终端非周期发 送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量载 波对应的上行分量载波, 或者为高层信令或其他下行控制信息格式指示的上 行分量载波;
当所述配置信息中包含多个上行分量载波索引时, 所述用户终端非周期 发送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量 载波对应的上行分量载波, 或者为多个上行分量载波索引对应的多个上行分 量载波, 即在多个上行分量载波上非周期发送测量参考信号。 ( B )基站通过下行控制信息携带用户终端的非周期发送测量参考信号 的指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测量参 考信号的资源或方式;
其中, N为 1至 20中的整数。 所述的 N个资源或方式中的每个资源或方式包括以下信息中的一种或多 种: 循环移位信息、 频域位置、 用户专有的带宽、 频率梳的位置、 SRS带宽 配置信息、 SRS发送子帧、 周期配置信息及发送测量参考信号的模式指示。 对于每个终端, 当用户终端占用一个上行分量载波时, 在下行控制信息 中使用 k比特表示非周期发送测量参考信号的指示信息, 该指示信息指示该 终端是否需要在相应的上行分量载波上非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送; 当用户终端占用多个上行分量载波时, 按照以下方式中的任一种指示在 各上行分量载波上非周期发送测量参考信号的指示信息: ( a )在下行控制信息中使用 k比特表示非周期发送测量参考信号的指示 信息, 该指示信息指示该终端是否需要非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送,在各上行分量载波上非周期发送测量 参考信号时均按所述 k比特的指示信息进行非周期发送测量参考信号;
( b )对于每个上行分量载波, 使用不同的指示信息分别指示,每个指示 信息均用 k比特信令表示, 所述 k比特信令指示该终端是否需要在对应的上 行分量载波上非周期发送测量参考信号以及使用所述 N个资源或方式中的哪 个进行发送; 其中, k为 1至 6中的整数。 k和 N的关系为: k二 ceil(\og2 (N + 1)) , ceil表示向上取整。 非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format域 中, 或者承载在专用于承载非周期测量参考信号信息的 DCI Format域中。 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户终端对所述用户专有的 DCI Format中承载的非周期发 送测量参考信号的指示信息进行解析。 所述用户专有的 DCI Format 包括用户专有的用于上行调度的 DCI Format及用户专有的用于下行分配的 DCI Format; 当一个子帧中的用户专有的用于上行调度的 DCI Format和用户专有的 用于下行分配的 DCI Format 中承载同一用户终端的非周期发送测量参考信 号的指示信息时, 所述用户终端对其中任一个承载的所述用户终端的非周期 发送测量参考信号的指示信息进行解析。 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户专有的 DCI Format中承载的指示信息和专用于承载非 周期测量参考信号信息的 DCI Format中承载的指示信息配置相同的取值。 所述专用于承载非周期测量参考信号信息的 DCI Format使用公有的 RNTI或专有的 RNTI对所述下行控制信息格式的循环冗余校验 CRC进行加 扰。 当所述非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format域中时,使用该用户专有的 RNTI对 DCI Format的循环冗余校验 CRC 进行力口扰; 当所述非周期发送测量参考信号的指示信息承载在专用于承载非周期测 量参考信号信息的 DCI Format域中时, 若该 DCI Format包含了多个用户终 端的非周期发送测量参考信号的指示信息, 则使用用户公有的 RNTI对 DCI Format的循环冗余校验 CRC进行加扰, 若该 DCI Format仅包含一个用户终 端的非周期发送测量参考信号的指示信息, 则使用用户公有的 RNTI或专有 的 RNTI对 DCI Format的循环冗余校验 CRC进行加 4尤。 当釆用专用于承载非周期测量参考信号信息的 DCI Format承载多个用 户终端的非周期发送测量参考信号的指示信息时, 所述多个终端的非周期发 送测量参考信号的指示信息的排列顺序或起始位置通过高层信令配置并下发 至各用户终端。 所述上行分量载波由所述公有的 RNTI和所述起始位置确定, 其中, 不 同的上行分量载波对应不同的所述公有的 RNTI或所述起始位置。 所述上行分量载波为承载所述指示信息的 DCI format所调度的 PDSCH 所在下行分量载波对应的上行分量载波, 或者, 承载所述指示信息的 DCI format所调度的 PUSCH所在的上行分量载波, 或者, 承载所述指示信息的 下行分量载波对应的上行分量载波。
( C )基站下发下行控制信息时指示用户终端是否进行非周期发送测量 参考信号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发 非周期发送测量参考信号所需的其他参数。
使用 1比特指示用户终端是否需要非周期发送测量参考信号; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个, 使用 n比 特指示非周期发送测量参考信号的模式;
其中, f7 = cei!(log2 T) , ceil表示向上取整, T和 n为 1至 6中的整数。 使用 m比特指示用户终端是否需要进行非周期发送 SRS以及非周期发 送 SRS的模式; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个; 其中, m = ceil(\og2(T + 1)) , m为 1至 6中的整数。 以上方式(A ) 、 ( B )及(C ) 中, 非周期发送测量参考信号的模式包 括以下的一种或多种:在上行子帧的最后一个 OFDM符号发送非周期测量参 考信号、在上行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、 不 对上行子帧的第一个时隙的 DMRS和 /或上行子帧第二个时隙的 DMRS进行 预编码、 在上行子帧的最后一个和 /或倒数第二个 OFDM符号发送非周期测 量参考信号且其发送带宽等于该用户终端的 PUSCH所占用的带宽且发送的 频域位置也与 PUSCH的频域位置相同、 在上行子帧的第一个时隙的 DMRS 与上行子帧第二个时隙的 DMRS 上同时发送测量参考信号且对发送的测量 参考信号及上行解调参考信号釆用正交掩码进行码分复用。 当用户终端确定釆用不对第一个时隙的 DMRS 和 /或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应时隙的 DMRS不进 行预编码; 当用户终端在第一个时隙的 DMRS和第二个时隙的 DMRS上同时发送
SRS时, 对发送的 SRS及上行解调参考信号釆用正交掩码进行码分复用, 所 述正交掩码为: [+1 , +1]或 [+1 , -1]。
本发明提供一种用于测量参考信号的信令配置的基站, 其设置为: 通知用户终端发送非周期测量参考信号, 以及向用户终端下发发送所述 测量参考信号的配置信息, 以使所述用户终端在对应的上行分量载波上非周期测量参考信号。 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过物理下行共享信道(PDSCH )向一个或多个用户终端下发 非周期发送测量参考信号的配置信息。 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过下行控制信息携带用户终端的非周期发送测量参考信号的 指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测量参考 信号的资源或方式。 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 基站下发下行控制信息时指示用户终端是否进行非周期发送测量参考信 号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发非周期 发送测量参考信号所需的其他参数。 本发明提供一种用于测量参考信号的信令配置的用户终端, 其设置为: 接收基站发送的发送非周期测量参考信号的通知, 接收基站向用户终端下发的发送非周期测量参考信号的配置信息, 以及 在对应的上行分量载波上非周期测量参考信号。
本发明提供一种测量参考信号的信令配置方法, 基站通知用户终端发送 非周期测量参考信号,并向用户终端下发发送所述测量参考信号的配置信息。 以下通过多个实施例详细说明本发明方案 实施例一 如图 5所示, 包括以下步骤 步骤 101 :基站通过 PDSCH向一个或多个用户终端下发非周期发送测量 参考信号的配置信息; 具体地, PDSCH的调度信息由下行控制信息格式 format 1A或 format 1C 来承载, 且使用 SRS-RNTI对下行控制信息格式 format 1A或 format 1C的循 环冗余校验 CRC进行加扰; 上述 SRS-RNTI为公有的 RNTI或用户专有的 RNTI 。 当使用公有的 RNTI加扰 CRC时,携带非周期发送测量参考信号的配置 信息的 PDSCH的数据块包括一个或多个用户终端的数据包, 每个用户终端 的数据包至少包括该用户终端的非周期发送测量参考信号的配置信息和该用 户终端专有的 RNTI信息; 此时, 承载 PDSCH的 format 1A或 format 1C在 公有搜索空间上发送; 当使用用户专有的 RNTI加扰 CRC时,携带非周期发送测量参考信号的 配置信息的 PDSCH的数据块包括该用户专有的 RNTI对应的用户终端的数 据包,该数据包至少包括该用户终端的非周期发送测量参考信号的配置信息。 此时,承载 PDSCH的 format 1A或 format 1C在公有或专有搜索空间上发送。 PDSCH 中携带的非周期发送测量参考信号的配置信息包括以下信息中 的一种或多种: 循环移位信息、 频域位置、 带宽、 上行分量载波索引、 频率 梳的位置、 发送测量参考信号的模式指示及发送次数。 非周期发送测量参考信号的模式包括以下的一种或多种: 在上行子帧的 最后一个 OFDM符号发送非周期测量参考信号、 在上行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、不对上行子帧的第一个时隙的 DMRS 和 /或上行子帧第二个时隙的 DMRS进行预编码、 在上行子帧的最后一个和 / 或倒数第二个 OFDM符号发送非周期测量参考信号且其发送带宽等于该用 户终端的 PUSCH所占用的带宽且发送的频域位置也与 PUSCH的频域位置相 同、 在上行子帧的第一个时隙的 DMRS与上行子帧第二个时隙的 DMRS上 同时发送 SRS 且对发送的 SRS 及上行解调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 步骤 102: 用户终端在搜索空间上盲检测 format 1A或 format 1C, 并根 据承载的调度信息判断是否需要进行非周期发送 SRS, 是则执行步骤 103 , 否则执行步骤 104; 具体地, 当使用公有的 RNTI加扰 CRC时, 用户终端在对应搜索空间上 盲检测使用公有的 RNTI加扰的 format 1A或 format 1C, 当检测到 format 1A 或 format 1C后,根据其承载的 PDSCH调度信息,在相应的位置获得 PDSCH, 在 PDSCH承载的传输块中寻找是否包含有该用户终端专有的 RNTI信息, 如果包含该用户终端专有的 RNTI, 则判定需要非周期发送测量参考信号。 当使用用户专有的 RNTI加扰 CRC时,若用户终端在对应搜索空间上盲 检测到使用用户专有的 RNTI加扰的 format 1A或 format 1C, 则判定需要非 周期发送测量参考信号。 当配置信息中包含一个上行分量载波索引时, 用户终端非周期发送测量 参考信号的上行分量载波为该上行分量载波索引对应的上行分量载波; 当配 置信息中不包含上行分量载波索引时, 用户终端非周期发送测量参考信号的 上行分量载波为承载配置信息的 PDSCH所在下行分量载波对应的上行分量 载波, 或者为高层信令或其他下行控制信息格式指示的上行分量载波; 当配 置信息中包含多个上行分量载波索引时, 用户终端非周期发送测量参考信号 的上行分量载波为承载配置信息的 PDSCH所在下行分量载波对应的上行分 量载波, 或者为多个上行分量载波索引对应的多个上行分量载波, 即在多个 上行分量载波上非周期发送测量参考信号。 步骤 103: 用户终端按照相应的配置信息进行非周期发送 SRS; 若用户终端才艮据配置信息的指示确定釆用不对第一个时隙的 DMRS和 / 或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应时 隙的 DMRS不进行预编码(此时相当于在该符号位置上进行了 SRS发送 ); 若用户终端根据配置信息的指示确定釆用在第一个时隙的 DMRS 与第二个 时隙的 DMRS上同时发送 SRS的模式时, 用户终端对发送的 SRS及上行解 调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 该正交 掩码为: [+1 , +1]或 [+1 , -1]。 步骤 104: 继续盲检测下一个子帧的数据。
实施例二 如图 6所示, 包括以下步骤 步骤 201 : 基站通过下行控制信息携带用户终端的非周期发送测量参考 信号的指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测 量参考信号的资源或方式; 具体地, 对于每个终端, 当用户终端占用一个上行分量载波时, 在下行 控制信息中使用 k比特表示非周期发送测量参考信号的指示信息, 该指示信 息指示该终端是否需要在相应的上行分量载波上非周期发送测量参考信号以 及使用 N个资源 (或方式) 中的哪个进行发送; 当用户终端占用多个(如 L个)上行分量载波时, 可以但不限于釆用以 下方式指示在各上行分量载波上发送 SRS 的资源 (或方式) : (a )使用 k 比特表示非周期发送测量参考信号的指示信息, 对每个上行分量载波均按照 该 k比特的指示进行非周期发送 SRS, 即根据其指示判断是否需要进行非周 期发送测量参考信号以及使用 N个资源(或方式) 中的哪个进行发送。 ( b ) 对于每个上行分量载波, 使用不同的指示信息分别指示, 每个指示信息均用 k比特信令表示, 即需要用 L个 k比特指示该用户终端进行非周期发送测量 参考信号的指示信息, 例如第一个 k比特指示了本用户终端是否需要在第一 个上行分量载波上进行非周期发送 SRS以及使用 N个资源(或方式)中的哪 个进行发送, 第二个 k比特指示了本用户终端是否需要在第二个上行分量载 波上进行非周期发送 SRS以及使用 N个资源 (或方式) 中的哪个进行发送, 以此类推。 k = ceil(\og2(N +1)) , ceil表示向上取整。 上述非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format 域中, 或者承载在专用于承载非周期测量参考信号信息的 DCI Format域中。 当非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format 域中时, 使用该用户专有的 RNTI对 DCI Format的 CRC进行加扰; 当非周期发送测量参考信号的指示信息承载在专用于承载非周期测量参 考信号信息的 DCI Format域中时, 若该 DCI Format包含了多个用户终端的 非周期发送测量参考信号的指示信息, 则使用用户公有的 RNTI 对 DCI Format的 CRC进行加扰, 若该 DCI Format仅包含一个用户终端的非周期发 送测量参考信号的指示信息, 则可使用用户公有的 RNTI或专有的 RNTI对 DCI Format的循环冗余校验 CRC进行加扰。 当釆用专用于承载非周期测量参考信号信息的 DCI Format承载多个终 端的非周期发送测量参考信号的指示信息时, 该多个终端的非周期发送测量 参考信号的指示信息的排列顺序或起始位置可通过高层信令配置并下发。 基站下发高层信令指示可用于非周期发送测量参考信号的 N个资源(或 方式), 每个资源(或方式)包括以下信息中的一种或多种: 循环移位信息、 频域位置、 用户专有的带宽、 频率梳的位置、 SRS带宽配置信息、 SRS发送 子帧或周期配置信息及发送测量参考信号的模式指示等。 非周期发送测量参考信号的模式包括以下的一种或多种: 在上行子帧的 最后一个 OFDM符号发送非周期测量参考信号、 在上行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、不对上行子帧的第一个时隙的 DMRS 和 /或上行子帧第二个时隙的 DMRS进行预编码、 在上行子帧的最后一个和 / 或倒数第二个 OFDM符号发送非周期测量参考信号且其发送带宽等于该用 户终端的 PUSCH所占用的带宽且发送的频域位置也与 PUSCH的频域位置相 同、 在上行子帧的第一个时隙的 DMRS与上行子帧第二个时隙的 DMRS上 同时发送 SRS 且对发送的 SRS 及上行解调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 步骤 202: 用户终端在搜索空间上盲检测 DCI Format, 并根据承载的非 周期发送测量参考信号的指示信息判断是否需要进行非周期发送 SRS, 是则 执行步骤 203 , 否则执行步骤 204; 具体地,当釆用用户专有的 DCI Format域承载非周期发送测量参考信号 的指示信息时, 用户终端在对应搜索空间上盲检测使用专有的 RNTI加扰的 DCI Format, 并根据其中承载的指示信息判断是否需要进行非周期发送 SRS 以及使用 N个资源 (或方式) 中的哪个进行发送。 当釆用专用于承载非周期测量参考信号信息的 DCI Format承载非周期 发送测量参考信号的指示信息时, 用户终端在对应搜索空间上盲检测使用公 有的 RNTI加扰的 DCI Format,并根据高层信令查找 DCI Format中对应位置 的指示信息,并根据该指示信息判断是否需要进行非周期发送 SRS以及使用 N个资源 (或方式) 中的哪个进行发送。 步骤 203: 用户终端按照指示信息指示的资源 (或方式)进行非周期发 送 SRS; 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,用户专有的 DCI Format中承载的指示信息和专用于承载非周期 测量参考信号信息的 DCI Format中承载的指示信息配置相同的取值,用户终 端对用户专有的 DCI Format 中承载的非周期发送测量参考信号的指示信息 进行解析,当用户专有的 DCI Format中承载的非周期发送测量参考信号的指 示信息无法正确解析时, 则对专用于承载非周期测量参考信号信息的 DCI Format中承载的非周期发送测量参考信号的指示信息进行解析。 用户专有的 DCI Format包括用户专有的用于上行调度的 DCI Format及 用户专有的用于下行分配的 DCI Format; 当一个子帧中的用户专有的用于上行调度的 DCI Format和用户专有的 用于下行分配的 DCI Format 中承载同一用户终端的非周期发送测量参考信 号的指示信息时, 用户终端对其中任一个承载的所述用户终端的非周期发送 测量参考信号的指示信息进行解析。 当用户终端占用多个上行分量载波(如 L个)时, 非周期发送 SRS的上 行分量载波位置可根据下面的方法来确定: 方式 1 : 上行分量载波由公有的 RNTI和起始位置确定, 其中, 不同的 上行分量载波对应不同的所述公有的 RNTI或所述起始位置。 方式 2: 上行分量载波为承载所述指示信息的 DCI format 所调度的 PDSCH所在下行分量载波对应的上行分量载波,或者,承载所述指示信息的 DCI format所调度的 PUSCH所在的上行分量载波, 或者, 承载所述指示信 息的下行分量载波对应的上行分量载波。 方式 3: 下行分量载波对应的上行分量载波由系统消息块配置, 比如 SIB 2, 或者由高层信令配置。 对于在各上行分量载波上发送 SRS 时所用的资源 (或方式)可按步骤 201中描述的方式根据指示信息来确定。 若用户终端根据下行控制信息的指示确定釆用不对第一个时隙的 DMRS 和 /或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应 时隙的 DMRS不进行预编码(此时相当于在该符号位置上进行了 SRS发送); 若用户终端根据下行控制信息的指示确定釆用在第一个时隙的 DMRS 与第 二个时隙的 DMRS上同时发送 SRS的模式时, 用户终端对发送的 SRS及上 行解调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 该 正交掩码为: [+1 , +1]或 [+1 , -1]。 步骤 204: 继续盲检测下一个子帧的数据。 实施例三 如图 7所示, 包括以下步骤 步骤 301 : 基站下发下行控制信息时指示用户终端是否进行非周期发送 SRS 以及非周期发送 SRS 的模式; 并通过高层信令配置并下发非周期发送 SRS所需的其他参数。 具体地,通过下行控制信息时指示用户终端是否进行非周期发送 SRS以 及非周期发送 SRS的模式的方式可以但不限于是以下两种:
( 1 )使用 1 比特指示用户终端是否需要非周期发送 SRS, 如当该 1 比 特值为 1 (或 0 ) 时表示需要非周期发送 SRS, 当该 1比特值为 0 (或 1 ) 时 表示不需要非周期发送 SRS; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个, 使用 n比 特指示非周期发送测量参考信号的模式。
( 2 )设一上行子帧中用于非周期发送测量参考信号的模式为 T个, 使 用 m比特指示用户终端是否需要进行非周期发送 SRS以及非周期发送 SRS 的模式; 非周期发送测量参考信号的模式包括以下的一种或多种: 在上行子帧的 最后一个 OFDM符号发送非周期测量参考信号、 在上行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、不对上行子帧的第一个时隙的 DMRS 和 /或上行子帧第二个时隙的 DMRS进行预编码、 在上行子帧的最后一个和 / 或倒数第二个 OFDM符号发送非周期测量参考信号且其发送带宽等于该用 户终端的 PUSCH所占用的带宽且发送的频域位置也与 PUSCH的频域位置相 同、 在上行子帧的第一个时隙的 DMRS与上行子帧第二个时隙的 DMRS上 同时发送 SRS 且对发送的 SRS 及上行解调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 基站通过高层信令配置并下发非周期发送 SRS 的其他参数包括以下信 息中的一种或多种: 循环移位信息、 频域位置、 上行分量载波索引、 用户专 有的带宽、 频率梳的位置、 SRS带宽配置信息、 SRS发送子帧及周期配置信 息等。 步骤 302: 用户终端对下行控制信息进行盲检测, 如果检测出基站所发 送的下行控制信息为该用户终端的控制信息, 则该用户终端根据下行控制信 息中指示判断是否需要进行非周期发送 SRS; 是则执行步骤 303 , 否则执行 步骤 304; 步骤 303: 用户终端根据下行控制信息的指示确定非周期发送 SRS的模 式,并根据接收的高层信令确定其他参数,根据指示的模式非周期发送 SRS; 若用户终端根据下行控制信息的指示确定釆用不对第一个时隙的 DMRS 和 /或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应 时隙的 DMRS不进行预编码(此时相当于在该符号位置上进行了 SRS发送); 若用户终端根据下行控制信息的指示确定釆用在第一个时隙的 DMRS 与第 二个时隙的 DMRS上同时发送 SRS的模式时, 用户终端对发送的 SRS及上 行解调参考信号釆用正交掩码 ( Orthogonal Cover Code )进行码分复用。 该 正交掩码为: [+1 , +1]或 [+1 , -1]。 步骤 304: 继续盲检测下一个子帧的数据。
显然, 本领域的技术人员应该明白, 上述的本发明的各模块或各步骤可 以用通用的计算装置来实现, 它们可以集中在单个的计算装置上, 或者分布 在多个计算装置所组成的网络上, 可选地, 它们可以用计算装置可执行的程 序代码来实现, 从而, 可以将它们存储在存储装置中由计算装置来执行, 并 且在某些情况下, 可以以不同于此处的顺序执行所示出或描述的步骤, 或者 将它们分别制作成各个集成电路模块, 或者将它们中的多个模块或步骤制作 成单个集成电路模块来实现。 这样, 本发明不限制于任何特定的硬件和软件 结合。 本领域普通技术人员可以理解上述方法中的全部或部分步骤可通过程序 来指令相关硬件完成, 所述程序可以存储于计算机可读存储介质中, 如只读 存储器、 磁盘或光盘等。 可选地, 上述实施例的全部或部分步骤也可以使用 一个或多个集成电路来实现。 相应地, 上述实施例中的各模块 /单元可以釆用 硬件的形式实现, 也可以釆用软件功能模块的形式实现。 本发明不限制于任 何特定形式的硬件和软件的结合。
以上所述仅为本发明的优选实施例而已, 并不用于限制本发明, 对于本 领域的技术人员来说, 本发明可以有各种更改和变化。 凡在本发明的精神和 原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。
工业实用性 本发明可实现终端非周期发送 SRS , 改善了 SRS资源的利用率, 提高了 资源调度的灵活性。

Claims

权 利 要 求 书
1、 一种测量参考信号的信令配置方法, 该方法包括: 基站通知用户终端非周期发送测量参考信号, 并向用户终端下发非周期 发送测量参考信号 (SRS ) 的配置信息。
2、如权利要求 1所述的方法, 其中, 向用户终端下发非周期发送测量参 考信号的配置信息的步骤包括: 所述基站通过物理下行共享信道(PDSCH )向一个或多个用户终端下发 非周期发送测量参考信号的配置信息。
3、 如权利要求 2所述的方法, 其中: 所述 PDSCH的调度信息由下行控制信息格式(format ) 1A或 format 1C 来承载, 且使用测量参考信号-无线网络临时标识值(SRS-RNTI )对下行控 制信息格式(format ) 的循环冗余校验 ( CRC )进行加扰; 其中, 控制信息 format为 format 1A或 format 1C; 所述 SRS-RNTI 为公有的无线网络临时标识值(RNTI )或用户专有的 RNTL
4、 如权利要求 3所述的方法, 其中: 当使用用户专有的 RNTI加扰所述下行控制信息 format 1A或 format 1C 的 CRC时, 所述下行控制信息格式在公有或专有搜索空间上发送; 当使用公有的 RNTI加扰所述下行控制信息 format 1A或 format 1C的 CRC时, 所述下行控制信息格式在公有搜索空间上发送。
5、 如权利要求 3所述的方法, 其中: 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时, 所述 PDSCH的数据块包括该用户专有的 RNTI对应的用户终端的数据包,所述数 据包至少包括所述用户终端的非周期发送测量参考信号的配置信息; 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,所述 PDSCH 的数据块包括一个或多个用户终端的数据包, 每个用户终端的数据包至少包 括该用户终端的非周期发送测量参考信号的配置信息和该用户终端专有的 RNTI信息。
6、 如权利要求 4所述的方法, 其还包括: 当使用公有的 RNTI加扰所述下行控制信息格式的 CRC时,用户终端在 对应搜索空间上盲检测使用公有的 RNTI加扰的下行控制信息格式, 当检测 到下行控制信息格式, 根据其承载的调度信息, 在相应的位置获得 PDSCH, 若所述 PDSCH承载的传输块包含该用户终端专有的 RNTI,则判定需要非周 期发送测量参考信号,按照相应的配置信息进行非周期发送,若所述 PDSCH 承载的传输块没有包含该用户终端专有的 RNTI, 继续盲检测下一个子帧的 数据; 当使用用户专有的 RNTI加扰所述下行控制信息格式的 CRC时,用户终 端在对应搜索空间上盲检测使用用户专有的 RNTI 加扰的下行控制信息格 式, 若用户终端在对应搜索空间上盲检测到使用用户专有的 RNTI加扰的下 行控制信息格式, 则判定需要非周期发送测量参考信号, 按照相应的配置信 息进行非周期发送, 若用户终端没有在对应搜索空间上盲检测到使用用户专 有的 RNTI加扰的下行控制信息格式, 继续盲检测下一个子帧的数据。
7、 如权利要求 2所述的方法, 其中: 所述 PDSCH携带的非周期发送测量参考信号的配置信息包括以下信息 中的一种或多种: 循环移位信息、 频域位置、 上行分量载波索引、 带宽、 频 率梳的位置、 发送测量参考信号的模式指示及发送次数。
8、 如权利要求 7所述的方法, 其中: 当所述配置信息中不包含上行分量载波索引时, 所述用户终端非周期发 送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量载 波对应的上行分量载波, 或者为高层信令或其他下行控制信息格式指示的上 行分量载波;
当所述配置信息中包含多个上行分量载波索引时, 所述用户终端非周期 发送测量参考信号的上行分量载波为承载配置信息的 PDSCH所在下行分量 载波对应的上行分量载波, 或者为多个上行分量载波索引对应的多个上行分 量载波, 即在多个上行分量载波上非周期发送测量参考信号。
9、如权利要求 1所述的方法, 其中, 向用户终端下发非周期发送测量参 考信号的配置信息的步骤包括: 所述基站通过下行控制信息携带用户终端的非周期发送测量参考信号的 指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测量参考 信号的资源或方式;
其中, N为 1至 20中的整数。
10、 如权利要求 9所述的方法, 其中: 所述的 N个资源或方式中的每个资源或方式包括以下信息中的一种或多 种: 循环移位信息、 频域位置、 用户专有的带宽、 频率梳的位置、 SRS带宽 配置信息、 SRS发送子帧、 周期配置信息及发送测量参考信号的模式指示。
11、 如权利要求 9所述的方法, 其中: 对于每个终端, 当用户终端占用一个上行分量载波时, 在下行控制信息 中使用 k比特表示非周期发送测量参考信号的指示信息, 该指示信息指示该 终端是否需要在相应的上行分量载波上非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送; 当用户终端占用多个上行分量载波时, 按照以下方式中的任一种指示在 各上行分量载波上非周期发送测量参考信号的指示信息: ( a )在下行控制信息中使用 k比特表示非周期发送测量参考信号的指示 信息, 该指示信息指示该终端是否需要非周期发送测量参考信号以及使用所 述 N个资源或方式中的哪个进行发送,在各上行分量载波上非周期发送测量 参考信号时均按所述 k比特的指示信息进行非周期发送测量参考信号;
( b )对于每个上行分量载波, 使用不同的指示信息分别指示,每个指示 信息均用 k比特信令表示, 所述 k比特信令指示该终端是否需要在对应的上 行分量载波上非周期发送测量参考信号以及使用所述 N个资源或方式中的哪 个进行发送; 其中, k为 1至 6中的整数。
12、 如权利要求 1 1所述的方法, 其中: 所述 k和 N的关系为: k二 ceil(\og2 (N + 1)) , ceil表示向上取整。
13、 如权利要求 1 1所述的方法, 其中: 所述非周期发送测量参考信号的指示信息承载在用户专有的下行控制信 息格式(DCI Format )域中, 或者承载在专用于承载非周期测量参考信号信 息的 DCI Format域中。
14、 如权利要求 13所述的方法, 其还包括: 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户终端对所述用户专有的 DCI Format中承载的非周期发 送测量参考信号的指示信息进行解析。
15、 如权利要求 14所述的方法, 其中: 所述用户专有的 DCI Format 包括用户专有的用于上行调度的 DCI Format及用户专有的用于下行分配的 DCI Format; 当一个子帧中的用户专有的用于上行调度的 DCI Format和用户专有的 用于下行分配的 DCI Format 中承载同一用户终端的非周期发送测量参考信 号的指示信息时, 所述用户终端对其中任一个承载的所述用户终端的非周期 发送测量参考信号的指示信息进行解析。
16、 如权利要求 13所述的方法, 其中: 当一个子帧中的用户专有的 DCI Format及专用于承载非周期测量参考 信号信息的 DCI Format 中承载同一用户终端的非周期发送测量参考信号的 指示信息时,所述用户专有的 DCI Format中承载的指示信息和专用于承载非 周期测量参考信号信息的 DCI Format中承载的指示信息配置相同的取值。
17、 如权利要求 13所述的方法, 其中: 所述专用于承载非周期测量参考信号信息的 DCI Format使用公有的 RNTI或专有的 RNTI对所述下行控制信息格式的循环冗余校验 CRC进行加 扰。
18、 如权利要求 13所述的方法, 其中: 当所述非周期发送测量参考信号的指示信息承载在用户专有的 DCI Format域中时,使用该用户专有的 RNTI对 DCI Format的循环冗余校验 CRC 进行力口扰; 当所述非周期发送测量参考信号的指示信息承载在专用于承载非周期测 量参考信号信息的 DCI Format域中时, 若该 DCI Format包含了多个用户终 端的非周期发送测量参考信号的指示信息, 则使用公有的 RNTI 对 DCI Format的循环冗余校验 CRC进行加扰, 若该 DCI Format仅包含一个用户终 端的非周期发送测量参考信号的指示信息, 则使用公有的 RNTI 或专有的 RNTI对 DCI Format的循环冗余校验 CRC进行加扰。
19、 如权利要求 14所述的方法, 其中: 当釆用专用于承载非周期测量参考信号信息的 DCI Format承载多个用 户终端的非周期发送测量参考信号的指示信息时, 所述多个终端的非周期发 送测量参考信号的指示信息的排列顺序或起始位置通过高层信令配置并下发 至各用户终端。
20、 如权利要求 11所述的方法, 其中: 所述上行分量载波由所述公有的 RNTI和所述起始位置确定, 其中, 不 同的上行分量载波对应不同的所述公有的 RNTI或所述起始位置。
21、 如权利要求 11所述的方法, 其中: 所述上行分量载波为承载所述指示信息的 DCI format所调度的 PDSCH 所在下行分量载波对应的上行分量载波, 或者, 承载所述指示信息的 DCI format所调度的 PUSCH所在的上行分量载波, 或者, 承载所述指示信息的 下行分量载波对应的上行分量载波。
22、 如权利要求 1所述的方法, 其中, 向用户终端下发非周期发送测量 参考信号的配置信息的步骤包括: 基站下发下行控制信息时指示用户终端是否进行非周期发送测量参考信 号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发非周期 发送测量参考信号所需的其他参数。
23、 如权利要求 22所述的方法, 其中: 使用 1比特指示用户终端是否需要非周期发送测量参考信号; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个, 使用 n比 特指示非周期发送测量参考信号的模式; 其中, n = ceil(\og2 T) , ceil表示向上取整, T和 n为 1至 6中的整数。
24、 如权利要求 22所述的方法, 其中: 使用 m比特指示用户终端是否需要进行非周期发送 SRS以及非周期发 送 SRS的模式; 设一上行子帧中用于非周期发送测量参考信号的模式为 T个; 其中, m = ceil(\og2(T + 1)) , m为 1至 6中的整数。
25、 如权利要求 7或 10或 22或 23或 24所述的方法, 其中: 所述非周期发送测量参考信号的模式包括以下的一种或多种: 在上行子 帧的最后一个正交频分复用 (OFDM )符号发送非周期测量参考信号、 在上 行子帧的倒数第二个 OFDM符号发送非周期测量参考信号、不对上行子帧的 第一个时隙的解调参考信号 (DMRS ) 和 /或上行子帧第二个时隙的 DMRS 进行预编码、 在上行子帧的最后一个和 /或倒数第二个 OFDM符号发送非周 期测量参考信号且其发送带宽等于该用户终端的物理上行共享信道 ( PUSCH )所占用的带宽且发送的频域位置也与 PUSCH的频域位置相同、 在上行子帧的第一个时隙的 DMRS与上行子帧第二个时隙的 DMRS上同时 发送测量参考信号且对发送的测量参考信号及上行解调参考信号釆用正交掩 码进行码分复用。
26、 如权利要求 25所述的方法, 其中: 当用户终端确定釆用不对第一个时隙的 DMRS 和 /或第二个时隙的 DMRS进行预编码的模式发送 SRS时, 用户终端对相应时隙的 DMRS不进 行预编码; 当用户终端在第一个时隙的 DMRS和第二个时隙的 DMRS上同时发送 SRS时, 对发送的 SRS及上行解调参考信号釆用正交掩码进行码分复用, 所 述正交掩码为: [+1 , +1]或 [+1 , -1]。
27、 一种用于测量参考信号的信令配置的基站, 其设置为: 通知用户终端发送非周期测量参考信号, 以及向用户终端下发发送所述 测量参考信号的配置信息, 以使所述用户终端在对应的上行分量载波上非周期测量参考信号。
28、 如权利要求 27所述的基站, 其中: 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过物理下行共享信道( PDSCH )向一个或多个用户终 端下发非周期发送测量参考信号的配置信息; 或者 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 所述基站通过下行控制信息携带用户终端的非周期发送测量参考 信号的指示信息, 以及通过高层信令为用户终端配置 N个用于非周期发送测 量参考信号的资源或方式; 或者 所述基站是设置为按如下方式向用户终端下发发送所述测量参考信号的 配置信息: 基站下发下行控制信息时指示用户终端是否进行非周期发送测量 参考信号以及非周期发送测量参考信号的模式; 并通过高层信令配置并下发 非周期发送测量参考信号所需的其他参数。
29、 一种用于测量参考信号的信令配置的用户终端, 其设置为: 接收基站发送的发送非周期测量参考信号的通知, 接收基站向用户终端下发的发送非周期测量参考信号的配置信息, 以及 在对应的上行分量载波上非周期测量参考信号。
PCT/CN2010/077164 2010-03-31 2010-09-20 一种测量参考信号的信令配置系统及方法 Ceased WO2011120284A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US13/505,759 US8717938B2 (en) 2010-03-31 2010-09-20 System and method for signaling configuration of sounding reference signals
JP2012537288A JP5548272B2 (ja) 2010-03-31 2010-09-20 サウンディング参照信号のシグナリングコンフィギュレーションシステム及び方法、並びに基地局
KR1020127011656A KR101392397B1 (ko) 2010-03-31 2010-09-20 사운딩 기준 신호의 시그널링 할당 시스템 및 방법
MX2012006336A MX2012006336A (es) 2010-03-31 2010-09-20 Sistema y metodo para configuracion de señalizacion de señales de referencia de sondeo.
EP10848743.0A EP2485553B1 (en) 2010-03-31 2010-09-20 Apparatus and method for signaling configuration of sounding reference signals, srs
RU2012119770/08A RU2536345C2 (ru) 2010-03-31 2010-09-20 Устройство и способ конфигурации сигнализации зондирующих опорных сигналов
BR112012012995-3A BR112012012995B1 (pt) 2010-03-31 2010-09-20 Método para uma configuração de sinalização de um sinal de referência sonoro, estação base para uma configuração de sinalização de um sinal de referência sonoro e equipamento de usuário

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201010155563.XA CN101827444B (zh) 2010-03-31 2010-03-31 一种测量参考信号的信令配置系统及方法
CN201010155563.X 2010-03-31

Publications (1)

Publication Number Publication Date
WO2011120284A1 true WO2011120284A1 (zh) 2011-10-06

Family

ID=42691084

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2010/077164 Ceased WO2011120284A1 (zh) 2010-03-31 2010-09-20 一种测量参考信号的信令配置系统及方法

Country Status (9)

Country Link
US (1) US8717938B2 (zh)
EP (1) EP2485553B1 (zh)
JP (1) JP5548272B2 (zh)
KR (1) KR101392397B1 (zh)
CN (1) CN101827444B (zh)
BR (1) BR112012012995B1 (zh)
MX (1) MX2012006336A (zh)
RU (1) RU2536345C2 (zh)
WO (1) WO2011120284A1 (zh)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013066020A1 (ko) * 2011-10-31 2013-05-10 엘지전자 주식회사 다중 노드 시스템에서 제어 채널 검색 방법 및 장치
RU2608575C1 (ru) * 2013-01-07 2017-01-23 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ для приемопередачи сигнала на основе динамического изменения беспроводного ресурса в системе беспроводной связи и устройство для этого
JP2018067936A (ja) * 2012-04-05 2018-04-26 クゥアルコム・インコーポレイテッドQualcomm Incorporated パイロットトーンを送信するためのシステムおよび方法
US11202219B2 (en) 2016-08-12 2021-12-14 Telefonaktiebolaget Lm Ericsson (Publ) Two-level mobility reference signal configuration

Families Citing this family (103)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8260356B2 (en) * 2009-06-18 2012-09-04 Samsung Electronics Co., Ltd. Method and system for indicating method used to scramble dedicated reference signals
CN102083219B (zh) * 2010-03-31 2014-04-09 电信科学技术研究院 非周期srs的传输方法和设备
CN101827444B (zh) 2010-03-31 2015-03-25 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法
JP5530254B2 (ja) * 2010-05-25 2014-06-25 シャープ株式会社 移動局装置、基地局装置、無線通信システム、無線通信方法および集積回路
JP4928621B2 (ja) 2010-05-27 2012-05-09 シャープ株式会社 無線通信システム、基地局装置、移動局装置、無線通信方法および集積回路
US8837394B2 (en) 2010-06-18 2014-09-16 Mediatek Inc. Sounding mechanism under carrier aggregation
US8855053B2 (en) * 2010-06-18 2014-10-07 Mediatek Inc. Sounding mechanism and configuration under carrier aggregation
WO2012022368A1 (en) * 2010-08-16 2012-02-23 Nokia Siemens Networks Oy Transmission of reference signals
CN102404029B (zh) * 2010-09-13 2014-08-06 电信科学技术研究院 周期探测参考信号的传输指示及传输方法、设备
CN102420669B (zh) * 2010-09-28 2015-01-07 华为技术有限公司 物理下行控制信道的配置方法及其用户设备和基站
CN102448088B (zh) * 2010-09-30 2014-12-03 华为技术有限公司 测量资源指示的方法、测量方法和装置
EP2437422A1 (en) * 2010-10-01 2012-04-04 Panasonic Corporation Search space for uplink and downlink grant in an OFDM-based mobile communication system
JP4938123B1 (ja) * 2010-10-04 2012-05-23 株式会社エヌ・ティ・ティ・ドコモ 無線基地局装置、移動端末装置、無線通信方法及び無線通信システム
JP5389271B2 (ja) * 2010-10-12 2014-01-15 パナソニック株式会社 端末装置、通信方法及び集積回路
CN102469587B (zh) * 2010-11-03 2015-08-12 中兴通讯股份有限公司 一种指示ue配置上行发射模式的方法及系统
CN102457368B (zh) * 2010-11-08 2013-03-20 华为技术有限公司 信道检测方法、基站和用户设备
CN102469607B (zh) 2010-11-09 2014-01-22 上海贝尔股份有限公司 上行探测参考信号的触发和传输方法及其设备
CN102469609B (zh) * 2010-11-16 2016-03-09 华为技术有限公司 测量参考信号的发送方法和配置指示方法及设备
CA2823966A1 (en) * 2011-01-07 2012-07-12 Fujitsu Limited Method for triggering aperiodic sounding reference symbol, base station and user equipment
WO2012092721A1 (zh) * 2011-01-07 2012-07-12 富士通株式会社 探测参考信号的发送方法、基站和用户设备
JP5097279B2 (ja) 2011-01-07 2012-12-12 株式会社エヌ・ティ・ティ・ドコモ 無線基地局装置、無線通信方法及び無線通信システム
WO2012092720A1 (zh) * 2011-01-07 2012-07-12 富士通株式会社 探测参考信号的发送方法、基站和用户设备
CN102595514B (zh) * 2011-01-12 2015-03-18 上海贝尔股份有限公司 非周期性探测参考信号的配置方法
WO2012094821A1 (zh) * 2011-01-14 2012-07-19 富士通株式会社 信道状态信息的传输方法、基站和用户设备
CN102624495B (zh) 2011-01-30 2016-03-30 华为技术有限公司 无线通信系统中参考信号配置信息的处理方法及基站、终端
CN102075274B (zh) * 2011-01-31 2016-09-28 中兴通讯股份有限公司 一种测量参考信号的多天线参数的配置方法及装置
US9432138B2 (en) * 2011-03-01 2016-08-30 Lg Electronics Inc. Method and apparatus for searching control information by terminal in multi-node system
JP5632319B2 (ja) * 2011-03-29 2014-11-26 京セラ株式会社 基地局
US10085164B2 (en) * 2011-04-28 2018-09-25 Qualcomm Incorporated System and method for managing invalid reference subframes for channel state information feedback
CN102170330B (zh) * 2011-04-29 2017-08-08 中兴通讯股份有限公司 测量参考信号的发送方法及系统
EP2705620A4 (en) 2011-05-03 2015-02-25 Samsung Electronics Co Ltd TRANSMITTING SOUND REFERENCE SIGNALS FROM A USER DEVICE AS A RESPONSE TO SEVERAL REQUIREMENTS
CN103535096B (zh) 2011-07-15 2017-05-24 富士通株式会社 探测参考信号的发送方法、基站和用户设备
CN102905379B (zh) 2011-07-28 2015-09-09 华为技术有限公司 控制信道的接收和发送方法和装置
CN103138906B (zh) * 2011-12-05 2016-05-25 上海贝尔股份有限公司 一种用于改进上行链路探询质量的方法与设备
WO2013169003A1 (ko) * 2012-05-08 2013-11-14 엘지전자 주식회사 제어 신호 송수신 방법 및 이를 위한 장치
CN103457690B (zh) 2012-05-31 2017-11-03 中兴通讯股份有限公司 探测参考信号的传输方法、装置及系统和用户设备
US10159052B2 (en) 2012-08-03 2018-12-18 Qualcomm Incorporated Method and apparatus for sounding reference signal triggering and power control for coordinated multi-point operations
CN103687042B (zh) * 2012-09-03 2018-05-15 中兴通讯股份有限公司 一种物理下行共享信道的传输方法及系统
CN103781160B (zh) * 2012-10-23 2017-06-20 华为技术有限公司 数据的传输方法及装置
CN104885534B (zh) 2013-01-03 2018-09-14 Lg电子株式会社 在无线通信系统中发送上行信号的方法和设备
US9973297B2 (en) * 2013-01-11 2018-05-15 Interdigital Patent Holdings, Inc. System and method for adaptive modulation
KR102004544B1 (ko) * 2013-02-06 2019-07-26 노키아 테크놀로지스 오와이 무선 통신 시스템에서 채널측정 기준신호 전송 방법 및 장치
CN110380838B (zh) 2013-03-28 2021-08-03 华为技术有限公司 带宽分配方法、装置、用户设备和基站
JP6290638B2 (ja) * 2014-01-30 2018-03-07 株式会社Nttドコモ ユーザ端末、無線通信システムおよび無線通信方法
US10291377B2 (en) 2014-04-20 2019-05-14 Lg Electronics Inc. Method and terminal for transmitting sounding reference signal in wireless communication system
KR102404359B1 (ko) * 2014-07-07 2022-06-02 엘지전자 주식회사 무선 통신 시스템에서 d2d(device-to-device) 통신을 위한 신호 송신 방법 및 이를 위한 장치
CN105323034B (zh) * 2014-07-11 2019-09-06 上海朗帛通信技术有限公司 一种基站、ue中的多天线通信方法和设备
US9929839B2 (en) * 2014-08-08 2018-03-27 Futurewei Technologies, Inc. Device, network, and method for communications with fast adaptive transmission and reception
CN104219180B (zh) * 2014-09-24 2017-10-31 京信通信系统(中国)有限公司 探测参考信号的处理方法和装置
EP3222099A4 (en) * 2014-11-18 2018-07-11 Intel IP Corporation Evolved node-b and user equipment and methods for group sounding in full-dimension multiple-input multiple-output systems
CN105792375A (zh) * 2014-12-26 2016-07-20 北京信威通信技术股份有限公司 一种扩展探测导频可支持的最大ue端口数量的方法
EP3248299A1 (en) 2015-01-15 2017-11-29 Telefonaktiebolaget LM Ericsson (publ) A wireless device, a radio node, and methods therein
CN106301662A (zh) * 2015-05-14 2017-01-04 株式会社Ntt都科摩 数据发送和接收方法以及数据发送和接收设备
CN106255208A (zh) * 2015-09-01 2016-12-21 北京智谷睿拓技术服务有限公司 资源分配方法、传输方法、及其装置
CN105490791B (zh) * 2015-11-19 2020-02-04 武汉虹信通信技术有限责任公司 Srs信号发送及触发方法、装置、用户设备和基站
US10716078B2 (en) * 2015-11-24 2020-07-14 Telefonaktiebolaget Lm Ericsson (Publ) Wireless device, radio-network node, and methods performed therein for managing signaling in a wireless communication network
CN106817156A (zh) * 2015-11-27 2017-06-09 中兴通讯股份有限公司 天线选择信息的指示方法及装置
CN112492640B (zh) 2015-12-31 2022-08-09 华为技术有限公司 信道测量信息的反馈方法、用户设备及基站
CN107196735B (zh) * 2016-03-15 2021-09-03 中兴通讯股份有限公司 确定传输信息的方法、装置及系统
JP6644904B2 (ja) 2016-03-16 2020-02-12 華為技術有限公司Huawei Technologies Co.,Ltd. 信号伝送方法及び装置
WO2017166299A1 (zh) 2016-04-01 2017-10-05 华为技术有限公司 上行信号在多载波间传输的方法、用户设备、基站及系统
US10447444B2 (en) * 2016-04-04 2019-10-15 Qualcomm Incorporated Dynamic sounding reference signal scheduling
KR102165453B1 (ko) 2016-04-07 2020-10-14 엘지전자 주식회사 무선 통신 시스템에서 셀 순환 하향링크 송신 방법 및 이를 위한 장치
US10912090B2 (en) * 2016-04-10 2021-02-02 Lg Electronics Inc. Method and device for transmitting uplink reference signal in wireless communication system
EP4319412A3 (en) * 2016-04-12 2024-04-17 Telefonaktiebolaget LM Ericsson (publ) Transmission and reception of system information in parts
CN107347218A (zh) * 2016-05-06 2017-11-14 北京信威通信技术股份有限公司 一种非周期参考信号的触发方法及系统
US10757687B2 (en) * 2016-05-12 2020-08-25 Qualcomm Incorporated Techniques for communicating feedback in low latency wireless communications
CN109075938B (zh) * 2016-05-13 2021-11-26 英特尔公司 在无线通信中实现基于SRS CC的切换的UE及eNB
CN107370590A (zh) * 2016-05-13 2017-11-21 中兴通讯股份有限公司 Srs的发送处理方法及装置和发送方法、装置及系统
EP3501134B1 (en) * 2016-08-19 2021-07-07 Telefonaktiebolaget LM Ericsson (publ) Distinguishing reference signals in a beam-based communication system
CN107786313B (zh) * 2016-08-27 2020-10-09 华为技术有限公司 一种参考信号的配置方法及相关设备
AU2017332423B2 (en) 2016-09-26 2020-11-19 Lg Electronics Inc. Uplink transmission/reception method in wireless communication system and device therefor
ES3045972T3 (en) * 2016-11-02 2025-12-01 Ericsson Telefon Ab L M Search space monitoring
CN108023717B (zh) * 2016-11-04 2021-08-20 华为技术有限公司 一种参考信号的测量方法和装置
US10154481B2 (en) * 2016-11-15 2018-12-11 Qualcomm Incorporated Optimization of search space and sounding reference signal placement for improved decoding timeline
CN108282285B (zh) 2017-01-05 2020-06-02 华为技术有限公司 信号传输方法和装置
EP3567913B1 (en) * 2017-01-25 2021-01-06 Huawei Technologies Co., Ltd. Method and apparatus for sending reference signal, and method and apparatus for receiving reference signal
US11509364B2 (en) * 2017-03-13 2022-11-22 Qualcomm Incorporated Techniques and apparatuses for uplink precoder determination using downlink reference signals or downlink precoder determination using uplink reference signals
WO2018188095A1 (zh) * 2017-04-14 2018-10-18 华为技术有限公司 一种通信方法及装置
AU2017412458B2 (en) * 2017-05-04 2022-10-27 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Method for determining transmission parameters of uplink signal, terminal and network device
CN115811376B (zh) 2017-05-05 2025-08-26 Lg电子株式会社 发送和接收同步信号和物理广播信道块的方法及其设备
RU2734022C1 (ru) * 2017-05-26 2020-10-12 Гуандун Оппо Мобайл Телекоммьюникейшнз Корп., Лтд. Способ для передачи сигнала восходящей линии связи, терминал и сетевое устройство
JP6728470B2 (ja) * 2017-06-15 2020-07-22 エルジー エレクトロニクス インコーポレイティド 同期信号ブロックを送受信する方法及びそのための装置
JP7130030B2 (ja) 2017-08-10 2022-09-02 中興通訊股▲ふん▼有限公司 共通制御ブロックの通信
US10855421B2 (en) * 2017-08-10 2020-12-01 Qualcomm Incorporated Configuration of sounding reference signal resources in an uplink transmission time interval
EP3665931A4 (en) * 2017-08-12 2020-09-02 ZTE Corporation WIRELESS REFERENCE TRANSMISSION
US10638340B2 (en) * 2017-08-15 2020-04-28 At&T Intellectual Property I, L.P. Base station wireless channel sounding
CN108111280B (zh) * 2017-09-11 2023-07-14 中兴通讯股份有限公司 参考信号配置、信息的发送、信息的接收方法及装置
CN109587792B (zh) * 2017-09-29 2021-03-02 华为技术有限公司 探测参考信号的资源分配方法及装置
CN109587793B (zh) * 2017-09-29 2021-08-31 维沃移动通信有限公司 Tci状态更新方法、基站及终端
CN109600794B (zh) * 2017-09-30 2021-01-15 华为技术有限公司 一种通信方法及设备
CN109672511B (zh) * 2017-10-13 2020-11-10 维沃移动通信有限公司 发送pucch的方法和用户终端
CN109803405A (zh) 2017-11-17 2019-05-24 华为技术有限公司 检测窗指示方法及装置
AU2018409011A1 (en) 2018-02-13 2020-09-24 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Sounding reference signal transmission method, terminal device, and network device
CN110149187B (zh) * 2018-02-13 2021-08-10 展讯通信(上海)有限公司 一种获取非周期信道探测参考信号的方法
WO2019168354A1 (ko) * 2018-02-27 2019-09-06 엘지전자 주식회사 무선 통신 시스템에서 단말이 srs를 전송하는 방법 및 이를 위한 장치
CN114944972A (zh) 2018-06-29 2022-08-26 华为技术有限公司 数据加扰方法及相关设备
CN110880960B (zh) * 2018-09-05 2022-06-03 维沃移动通信有限公司 探测参考信号传输方法、终端设备和网络设备
CN111901079B (zh) * 2020-01-03 2024-10-29 中兴通讯股份有限公司 参考信号发送、接收方法、装置、通信节点及介质
WO2021179299A1 (en) * 2020-03-13 2021-09-16 Lenovo (Beijing) Limited Method and apparatus for pdcch repetition
US20230216632A1 (en) * 2020-06-09 2023-07-06 Lg Electronics Inc. Method and device for transmitting or receiving sounding reference signal in wireless communication system
WO2022077170A1 (en) * 2020-10-12 2022-04-21 Apple Inc. Flexible aperiodic srs triggering in cellular communication system
CN121842608A (zh) * 2022-03-22 2026-04-10 华为技术有限公司 一种通信方法及通信装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101335969A (zh) * 2008-08-01 2008-12-31 中兴通讯股份有限公司 一种时分双工系统上行信道测量参考信号的发送方法
CN101547022A (zh) * 2008-03-26 2009-09-30 三星电子株式会社 Lte tdd系统中发送srs的方法和装置
CN101572896A (zh) * 2008-04-29 2009-11-04 大唐移动通信设备有限公司 一种配置上行探测参考信号的方法和装置
CN101827444A (zh) * 2010-03-31 2010-09-08 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101010774B1 (ko) * 2004-02-11 2011-01-25 엘지전자 주식회사 이동통신 시스템에서 점대다 서비스 데이터의 송수신방법
TW200829726A (en) * 2006-11-28 2008-07-16 Basf Ag Method and device for electrolytic coating
CN102165720B (zh) * 2008-09-26 2015-10-14 三星电子株式会社 支持多个天线的探测参考信号发射的装置及方法
AR075865A1 (es) * 2009-03-17 2011-05-04 Interdigital Patent Holdings Metodo y aparato para control de potencia de transmision de senal de referencia de sonido (srs)
KR101641971B1 (ko) * 2009-05-15 2016-07-22 엘지전자 주식회사 무선 통신 시스템에서 사운딩 참조 신호 송신 방법 및 이를 위한 장치
CN102246579A (zh) * 2010-01-08 2011-11-16 联发科技股份有限公司 长期演进声探的资源分配与信令方法
KR101435856B1 (ko) * 2010-02-09 2014-08-29 엘지전자 주식회사 무선 통신 시스템에서 상향링크 신호 송신 방법 및 이를 위한 장치
JP2011166699A (ja) 2010-02-15 2011-08-25 Ntt Docomo Inc 無線基地局装置、移動端末装置及び無線通信方法
KR101807875B1 (ko) 2010-03-05 2017-12-12 엘지전자 주식회사 무선 통신 시스템에서 비주기적 사운딩 참조 신호 전송 방법 및 장치
CN101808409B (zh) * 2010-04-01 2015-03-25 中兴通讯股份有限公司 一种lte-a系统中测量参考信号的配置方法和系统
TWI492589B (zh) * 2010-04-08 2015-07-11 Htc Corp 加強探測參考訊號傳輸的方法及其通訊裝置
JP5565522B2 (ja) * 2010-04-29 2014-08-06 富士通株式会社 サウンディング基準信号を非周期的に送信するための方法及び装置
US8837394B2 (en) * 2010-06-18 2014-09-16 Mediatek Inc. Sounding mechanism under carrier aggregation
CN101931456B (zh) * 2010-08-09 2016-05-25 中兴通讯股份有限公司 一种移动通信系统中测量参考信号的发送方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101547022A (zh) * 2008-03-26 2009-09-30 三星电子株式会社 Lte tdd系统中发送srs的方法和装置
CN101572896A (zh) * 2008-04-29 2009-11-04 大唐移动通信设备有限公司 一种配置上行探测参考信号的方法和装置
CN101335969A (zh) * 2008-08-01 2008-12-31 中兴通讯股份有限公司 一种时分双工系统上行信道测量参考信号的发送方法
CN101827444A (zh) * 2010-03-31 2010-09-08 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP2485553A4 *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013066020A1 (ko) * 2011-10-31 2013-05-10 엘지전자 주식회사 다중 노드 시스템에서 제어 채널 검색 방법 및 장치
US9497737B2 (en) 2011-10-31 2016-11-15 Lg Electronics Inc. Method and apparatus for searching for control channel in multi-node system
JP2018067936A (ja) * 2012-04-05 2018-04-26 クゥアルコム・インコーポレイテッドQualcomm Incorporated パイロットトーンを送信するためのシステムおよび方法
RU2608575C1 (ru) * 2013-01-07 2017-01-23 ЭлДжи ЭЛЕКТРОНИКС ИНК. Способ для приемопередачи сигнала на основе динамического изменения беспроводного ресурса в системе беспроводной связи и устройство для этого
US10091773B2 (en) 2013-01-07 2018-10-02 Lg Electronics Inc. Method for transceiving signal based on dynamic change of wireless resource in wireless communications system and apparatus therefor
US10420093B2 (en) 2013-01-07 2019-09-17 Lg Electronics Inc. Method for transceiving signal based on dynamic change of wireless resource in wireless communications system and apparatus therefor
US10582490B2 (en) 2013-01-07 2020-03-03 Lg Electronics Inc. Method for transceiving signal based on dynamic change of wireless resource in wireless communications system and apparatus therefor
US10966190B2 (en) 2013-01-07 2021-03-30 Lg Electronics Inc. Method for transceiving signal based on dynamic change of wireless resource in wireless communications system and apparatus therefor
US11202219B2 (en) 2016-08-12 2021-12-14 Telefonaktiebolaget Lm Ericsson (Publ) Two-level mobility reference signal configuration
US12035165B2 (en) 2016-08-12 2024-07-09 Telefonaktiebolaget Lm Ericsson (Publ) Two-level mobility reference signal configuration

Also Published As

Publication number Publication date
EP2485553A4 (en) 2013-11-27
CN101827444B (zh) 2015-03-25
EP2485553A1 (en) 2012-08-08
EP2485553B1 (en) 2017-09-13
BR112012012995A2 (pt) 2020-07-07
BR112012012995B1 (pt) 2021-09-21
RU2012119770A (ru) 2014-05-10
MX2012006336A (es) 2012-06-28
KR101392397B1 (ko) 2014-05-08
RU2536345C2 (ru) 2014-12-20
JP5548272B2 (ja) 2014-07-16
US8717938B2 (en) 2014-05-06
US20130028134A1 (en) 2013-01-31
JP2013510475A (ja) 2013-03-21
KR20120068960A (ko) 2012-06-27
CN101827444A (zh) 2010-09-08

Similar Documents

Publication Publication Date Title
CN101827444B (zh) 一种测量参考信号的信令配置系统及方法
KR102768933B1 (ko) 무선 통신 시스템의 상향링크 제어 정보 전송 방법 및 이를 이용하는 장치
JP6073514B2 (ja) アップリンクリソース割当のための方法及び装置
CN101795145B (zh) 测量参考信号的发送方法及系统
KR102067064B1 (ko) 무선 통신 시스템에서 단말의 d2d 데이터 전송 방법 및 장치
CN113692059B (zh) 无线通信系统中的方法和设备
JP5869636B2 (ja) チャンネルブロッキングを回避するための方法及び装置
CN105027481B (zh) 在epdcch上接收控制信息的方法
US10039140B2 (en) Method and apparatus for transreceiving signal in wireless communication system
TWI807572B (zh) 促進不同搜尋空間集合之鏈結實體下行鏈路控制通道(pdcch)候選者上之下行鏈路控制資訊(dci)重複
US20130121278A1 (en) Method and apparatus for allocating resources in a wireless communication system
WO2012019412A1 (zh) 一种测量参考信号的配置方法及系统
CN110574459A (zh) 终端装置、基站装置以及通信方法
WO2013168942A1 (ko) 데이터 전송 방법 및 장치
WO2011108892A2 (ko) 반송파 집성 시스템에서 단말의 제어정보 디코딩 방법 및 단말
KR20120121873A (ko) 다중 반송파를 사용하는 무선 통신 시스템에서 제어 정보 전송 방법
US11470613B2 (en) Method for transmitting or receiving sidelink signal by terminal in wireless communication system supporting sidelink and apparatus therefor
CN103312444A (zh) 指示信息的发送和接收方法及装置
CN109792348B (zh) 用于在无线通信系统中收发无线信号的方法和设备

Legal Events

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

Ref document number: 10848743

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2010848743

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2010848743

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 13505759

Country of ref document: US

Ref document number: 3953/CHENP/2012

Country of ref document: IN

ENP Entry into the national phase

Ref document number: 20127011656

Country of ref document: KR

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 2012537288

Country of ref document: JP

WWE Wipo information: entry into national phase

Ref document number: MX/A/2012/006336

Country of ref document: MX

NENP Non-entry into the national phase

Ref country code: DE

WWE Wipo information: entry into national phase

Ref document number: 2012119770

Country of ref document: RU

REG Reference to national code

Ref country code: BR

Ref legal event code: B01A

Ref document number: 112012012995

Country of ref document: BR

REG Reference to national code

Ref country code: BR

Ref legal event code: B01E

Ref document number: 112012012995

Country of ref document: BR

Free format text: APRESENTE A TRADUCAO SIMPLES DA FOLHA DE ROSTO DA CERTIDAO DE DEPOSITO DA PRIORIDADE CN 201010155563.X; OU DECLARACAO DE QUE OS DADOS DO PEDIDO INTERNACIONAL ESTAO FIELMENTE CONTIDOS NA PRIORIDADE REIVINDICADA, CONTENDO TODOS OS DADOS IDENTIFICADORES DESTA (TITULARES, NUMERO DE REGISTRO, DATA E TITULO), CONFORME O PARAGRAFO UNICO DO ART. 25 DA RESOLUCAO 77/2013 E ART. 2O DA RESOLUCAO 179/2017. CABE SALIENTAR QUE NAO FOI POSSIVEL IDENTIFICAR O TITULAR DO PEDIDO PRIORITARIO NOS DOCUMENTOS JUNTADOS AO PROCESSO, TAMPOUCO NOS APRESENTADOS NA OMPI. TAL INFORMACAO E NECESSARIA PARA O EXAME DA CESSAO DO DOCUMENTO DE PRIORIDADE.

ENP Entry into the national phase

Ref document number: 112012012995

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20120530