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WO2012167589A1 - Procédé et système d'envoi de signal srs - Google Patents

Procédé et système d'envoi de signal srs Download PDF

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Publication number
WO2012167589A1
WO2012167589A1 PCT/CN2011/084454 CN2011084454W WO2012167589A1 WO 2012167589 A1 WO2012167589 A1 WO 2012167589A1 CN 2011084454 W CN2011084454 W CN 2011084454W WO 2012167589 A1 WO2012167589 A1 WO 2012167589A1
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WIPO (PCT)
Prior art keywords
srs
base station
domain resource
resource
group number
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Ceased
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PCT/CN2011/084454
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English (en)
Chinese (zh)
Inventor
王瑜新
陈艺戬
戴博
喻斌
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/16—Code allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/005—Discovery of network devices, e.g. terminals

Definitions

  • the present invention relates to a high-speed LTE (LTE-A) measurement reference signal (SRS) related technology, and more particularly to a SRS transmission method and system.
  • LTE-A high-speed LTE
  • SRS measurement 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 Channel (PUCCH, Physical).
  • CP cyclic prefix
  • Subframe consists of two slots (Slots).
  • DMRS Demodulation Reference Signal
  • FIG. 1b are schematic diagrams of time domain locations of the DMRS in the prior art, where FIG. 1a is a time domain location diagram of the DMRS when a normal cyclic prefix is used, and each subframe contains 14 Orthogonal Frequency Division Multiplexing (OFDM) symbols, including DMRS symbols, OFDM symbols represent the time domain position of one subframe; FIG. 1b is a schematic diagram of the time domain position of the DMRS when the cyclic prefix is extended, each sub- The frame contains 12 time domain data OFDM symbols.
  • OFDM Orthogonal Frequency Division Multiplexing
  • Reception is to use the transmit antennas of multiple cells (Cell) to achieve high-capacity and reliable transmission of the wireless link at the cell edge, which can effectively solve the problem of cell edge interference.
  • Cell multiple cells
  • the basic principle of multipoint transmission and the structure diagram of multi-cell joint processing are shown in Figure 2.
  • JP / JT Joint Processing / transmission joint
  • CS / CB Coordinated Scheduling / Beamforming
  • the Sounding Reference Signal is a signal used by the UE and the base station to measure the Channel State Information (CSI).
  • the UE sends an uplink SRS on the last data symbol of the transmitting subframe according to parameters such as bandwidth, frequency domain location, sequence cyclic shift, period, and subframe offset indicated by the base station (eNB, Evolved NodeB);
  • the eNB determines the uplink CSI of the UE according to the received SRS, and performs operations such as frequency domain selection scheduling, closed loop power control, and the like according to the obtained CSI.
  • the SRS sequence sent by the UE is obtained by cyclically shifting a root sequence v ( «) in the time domain.
  • v «
  • the SRS sequences can be obtained, and the obtained SRS sequences are orthogonal to each other. Therefore, these SRS sequences can be allocated to different UEs to implement inter-UE communication.
  • Code division multiple access In the LTE system, the SRS sequence defines eight cyclic shifts, given by equation (1):
  • 11 ⁇ 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 regarded as dividing the SRS sequence into 8 parts at equal intervals in the time domain, but since the length of the SRS sequence 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 in which a different UE is allocated to transmit SRS in the prior art. As shown in FIG.
  • the sequence used by the SRS is selected from the demodulation pilot sequence group.
  • the SRS bandwidth of the UE is 4 resource blocks (RB, Resource Block), the computer generated (CG, Computer Generated) with a length of 2 RBs is used. Sequence; When the SRS bandwidth of the UE is greater than 4 RBs, a corresponding length of Zadoff-Chu (ZC) sequence is used.
  • RB Resource Block
  • CG Computer Generated
  • Fig. 4 is a schematic view showing the comb structure of the prior art SRS.
  • the UE transmits the SRS using only the subcarriers whose frequency domain index is even or odd according to the frequency comb comb position indication of the 1-bit upper layer signaling.
  • This comb structure allows more UEs to send SRS within the same SRS bandwidth.
  • multiple UEs can use different cyclic shifts on the same frequency comb, and then send SRS through code division multiplexing, or two UEs can comb on different frequencies.
  • the SRS is transmitted over frequency division multiplexing.
  • 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 Resources that can be used to send SRS, that is, up to 16 SRSs can be sent simultaneously within this SRS bandwidth.
  • the UE can only transmit one SRS at each time, so only one SRS resource is needed for one UE.
  • the system can multiplex up to 16 UEs at the same time.
  • the advanced LTE (LTE-A, LTE-Advanced) 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, 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.
  • 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 send the SRS by using the high-level signaling (also referred to as triggered by the trigger type 0) or the downlink control information (also referred to as triggering by the trigger type 1).
  • the high-level signaling is triggered by the periodic SRS, based on the downlink.
  • the control information triggers a non-periodic SRS.
  • the CoMP system In order to reduce the feedback amount of the UE, the CoMP system often uses the channel reciprocity to obtain the downlink CSI by measuring the SRS; in addition, the application of the distributed RRHs with the same cell ID with the same cell ID The number of users in the cell increases, so it is on the SRS The user reuse capacity puts forward higher requirements. How to further increase the available resources of SRS, improve the user multiplexing capacity of SRS, improve the channel estimation quality of the SRS by the receiving end (base station), and more effectively support the application of the CoMP system is an urgent problem to be solved. Summary of the invention
  • the main purpose of the present invention is to provide a method and system for transmitting SRS, so as to increase the available resources of the SRS, improve the user multiplexing capacity of the SRS, and improve the channel estimation quality of the SRS by the base station.
  • the present invention provides a method for transmitting a measurement reference signal (SRS), the method comprising: a user terminal (UE) transmitting an SRS to a base station on a time domain resource, a frequency domain resource, and/or a code domain resource;
  • the domain resource includes: a last time domain symbol of the subframe in which the SRS period is located, or a first time domain symbol, or a second to last time domain symbol;
  • the frequency domain resource includes: a frequency domain location of the SRS or a transmission frequency of the SRS
  • the code domain resource is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station for the UE through the high layer signaling, and determines to send the SRS according to the sequence group number of the generated SRS.
  • the required code domain resource is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station for the UE through the high layer signaling, and determines to
  • the sequence group number of the SRS is: a sequence group number used for a physical uplink control channel (PUCCH), or a sequence group number of a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH).
  • PUCCH physical uplink control channel
  • DMRS demodulation reference signal
  • the sequence group number for the PUCCH is obtained by:
  • M denotes a sequence group number for PUCCH
  • / gh ( « s ) denotes a group jump pattern
  • /J UCCH denotes a sequence shift pattern of PUCCH
  • mod denotes an ear 4 ⁇ operation.
  • the / ⁇ is derived by:
  • N ⁇ represents the physical layer cell identifier (ID)
  • a ss is the offset parameter of the high layer signaling configured for the PUSCH, A ss e ⁇ 0,l, ..., 29 ⁇ ; ⁇ is the offset parameter configured by the higher layer signaling for SRS, ⁇ ⁇ 0,1, ⁇ , 29 ⁇ .
  • the / ss PUCCH is derived as follows:
  • n RNTI RNTI for pseudo-random at the beginning of each radio frame Sequence generator initialization
  • ⁇ is the user-specific number configured by the base station for the UE through high layer signaling.
  • the _ (n ) is obtained by:
  • the method further includes: configuring, by the base station, the SRS resource occupation information sent by the coordinated cell through the X2 interface, and configuring the UE of the cell to which the base station belongs The SRS resources of the coordinated cell do not overlap.
  • the SRS is transmitted on the SRS frequency domain location or frequency comb.
  • the method further includes: sending, by the base station, the SRS resource occupation information of the local cell to the coordinated cell by using the X2 interface.
  • the method further includes:
  • the physical resource block (PRB) occupation indication of the SRS through the information element (IE) item of the X2 interface, And/or user-specific parameter information of the SRS of the IE item, to represent the resource occupation information of the SRS.
  • IE information element
  • the PRB occupation indication of the IE item SRS includes: a CoMP SRS indication per PRB; the user-specific parameter information of the IE item SRS includes: a user-specific CoMP SRS information indication.
  • the number of transmission frequency combs of the SRS is 2, 3 or 4.
  • the present invention further provides a SRS transmission system, the system includes: a UE and a base station, where the UE is configured to send an SRS to a base station on a time domain resource, a frequency domain resource, and/or a code domain resource;
  • the time domain resource includes: a last time domain symbol of a subframe in which the SRS period is located, or a first time domain symbol, or a second to last time domain symbol;
  • the frequency domain resource includes: a frequency domain location of the SRS or an SRS
  • the transmission frequency comb is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station for the UE by using the high layer signaling, and determines the sequence group number of the SRS according to the sequence number of the generated SRS.
  • the code domain resource required to send the SRS is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station for the UE by using the high
  • the base station is configured to receive, by using a time domain resource, a frequency domain resource, and/or a code domain resource, an SRS sent by the UE.
  • the sequence group number of the SRS is: a sequence group number for PUCCH or a sequence group number for DMRS for PUSCH.
  • the sequence group number for the PUCCH is obtained by:
  • M denotes a sequence group number for PUCCH
  • / gh ( « s ) denotes a group jump pattern
  • /J UCCH denotes a sequence shift pattern of PUCCH
  • mod denotes an ear 4 ⁇ operation.
  • a ss is the offset parameter configured by the high layer signaling for the PUSCH, A ss e ⁇ 0, l,..., 29 ⁇ ; ⁇ is the high layer signaling for the SRS Configured offset parameters, ⁇ ⁇ 0,1, ⁇ , 29 ⁇ .
  • the / ss PU ⁇ H is obtained by:
  • c init initialize the pseudo-random sequence generator
  • ⁇ is the user-specific parameter configured by the base station for the UE through high layer signaling.
  • the _ (n ) is obtained by:
  • the base station is further configured to: before the UE sends the SRS to the base station on the frequency domain resource, configure the UE in the cell to which the base station belongs according to the received SRS resource occupation information sent by the coordinated cell through the X2 interface.
  • the SRS of the cell does not overlap with the SRS frequency domain location or frequency comb to send the SRS.
  • the base station is further configured to send the SRS resource occupation information of the local cell to the coordinated cell by using the X2 interface before the UE sends the SRS to the base station on the frequency domain resource.
  • the resource occupancy information of the SRS is indicated by the information element (IE) of the X2 interface, the physical resource block (PRB) occupation indication of the SRS, and/or the user-specific parameter information of the SRS of the IE item.
  • IE information element
  • PRB physical resource block
  • the PRB occupation indication of the IE item SRS includes: a CoMP SRS indication per PRB; the user-specific parameter information of the IE item SRS includes: a user-specific CoMPSRS information indication.
  • the number of transmission frequency combs of the SRS is 2, 3 or 4.
  • a method and system for transmitting SRS provided by the present invention by UE in time domain resources and frequency
  • the SRS is sent to the base station on the domain resource and/or the code domain resource, where the time domain resource includes: a last time domain symbol of the subframe in which the SRS period is located, or a first time domain symbol, or a second to last time domain symbol;
  • the frequency domain resource includes: a frequency domain location of the SRS or a transmission frequency comb of the SRS;
  • the code domain resource is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station by using the high layer signaling for the UE, and
  • the code domain resource required to transmit the SRS is determined according to the sequence group number of the generated SRS.
  • the available resources of the SRS can be increased, the user multiplexing capacity of the SRS can be improved, the channel estimation quality of the SRS by the base station can be improved, and the application of the CoMP system can be more effectively supported.
  • FIG. 1 is a schematic diagram of a time domain location of a DMRS when a normal cyclic prefix is used in the prior art
  • FIG. 1b is a schematic diagram of a time domain location of a DMRS when an extended cyclic prefix is used in the prior art
  • FIG. 2 is a basic diagram of multipoint transmission in the prior art. Schematic diagram of the principle and multi-cell joint processing
  • FIG. 3 is a schematic diagram of a frequency domain initial position in which different RRC UEs transmit SRSs in the prior art
  • FIG. 4 is a schematic view of a comb structure of an SRS in the prior art
  • FIG. 5 is a flowchart of a method for sending an SRS according to an embodiment of the present invention. detailed description
  • the method for sending the SRS provided by the embodiment of the present invention includes:
  • the UE sends an SRS to the base station on the time domain resource, the frequency domain resource, and/or the code domain resource.
  • the time domain resource includes: a last time domain symbol of the subframe in which the SRS period is located, or a first time domain symbol, or a reciprocal The second time domain symbol;
  • the frequency domain resource includes: a frequency domain location of the SRS or a transmission frequency comb of the SRS;
  • the code domain resource is obtained by: the UE configuring the UE according to the high layer signaling by the base station
  • the user-specific parameter generates a sequence group number (SRS sequence-group number) of the SRS, and determines a code domain resource required for transmitting the SRS according to the sequence group number of the generated SRS.
  • sequence group number for the PUCCH may be used as the sequence group number of the SRS; or the sequence group number of the DMRS for the PUSCH may be used as the sequence group number of the SRS.
  • the available resources of the SRS can be increased, and the user of the SRS is improved. Use capacity.
  • the UE sends an SRS to the base station on the code domain resource.
  • the code domain resource is obtained by: the UE generates a sequence group number of the SRS according to a user-specific parameter configured by the base station for the UE by using high layer signaling (such as radio resource control RRC signaling), and according to the generated SRS
  • the sequence group number determines the code domain resources required to send the SRS.
  • sequence group number for the PUCCH may be used as the sequence group number of the SRS; or the sequence group number of the DMRS for the PUSCH may be used as the sequence group number of the SRS.
  • sequence group number for PUCCH is used as the sequence group number of the SRS, it is necessary to determine the sequence-shift pattern / s UCCH of the PUCCH by one of the following two methods.
  • ⁇ 11 represents the physical layer cell identity (ID)
  • a ss It is the offset parameter (groupAssignmentPUSCH ) configured by the high layer signaling for the PUSCH, A ss e ⁇ 0,1,...,29 ⁇ ;
  • ⁇ is the offset parameter (groupAssignmentSRS ) configured by the upper layer signaling for the SRS, ⁇ e ⁇ ,1, ⁇ ,29 ⁇ .
  • ⁇ is the user-specific parameter configured by the base station for the UE through high-level signaling, if used
  • the formula (2) obtains / ss pueeH , then the user-specific parameter refers to A ss ; if the above formula (3 ) is used to obtain / ss PUCCH , then the user-specific parameter refers to ⁇ .
  • Method 2 Obtain UCCH by the following formula (4):
  • s is a slot number within a radio frame, using C init for pseudo-random at the beginning of each radio frame
  • the sequence generator is initialized, " RNTT is the wireless network temporary identifier
  • ⁇ ⁇ is the user-specific parameter configured by the foregoing base station for the UE through high layer signaling.
  • the group-hopping pattern is obtained by the following formula (6):
  • the sequence-shift pattern of the PUSCH is obtained by the equations (11) and (12).
  • s s PUSCH (/ ss PUCCH + A s ) mod30 ( 12 ) where A ss is the user-specific offset parameter configured by the higher layer signaling for PUSCH
  • groupAssignmentPUSCH A ss e ⁇ ,1, ⁇ , 29 ⁇ .
  • the UE After obtaining the sequence group number of the SRS, the UE obtains the sequence r s ( R «) of the SRS according to the foregoing formulas (7) to (10), that is, the code domain resources required for transmitting the SRS.
  • the user-specific offset is configured for the UE, and the sequence group number for the PUCCH or the PUSCH is obtained based on the configured offset, as the sequence group number of the SRS, and the sequence group number of the UE in the SRS.
  • the SRS is sent to the base station; thereby, the available resources of the SRS can be increased, and the user multiplexing capacity of the SRS is improved.
  • the UE sends an SRS to the base station on the frequency domain resource.
  • the frequency domain resources include: a frequency domain location of the SRS or a transmission frequency comb of the SRS.
  • the base station is small according to the received cooperation.
  • the SRS resource occupation information sent by the X2 interface is configured, and the UE of the local cell is configured to send the SRS on the SRS frequency domain location or frequency comb that does not overlap with the SRS resource of the coordinated cell. Avoiding transmitting SRS on the overlapping SRS frequency domain position or frequency comb can improve the channel estimation quality of the SRS by the receiving end (base station).
  • the base station sends the SRS resource occupation information of the current cell to the coordinated cell by using the X2 interface.
  • the resource occupancy information of the SRS may be represented by an IE (Information Element) item of the X2 interface, a Physical Resource Block (PRB) occupation indication parameter, and/or a user-specific parameter information of the SRS.
  • IE Information Element
  • PRB Physical Resource Block
  • the physical resource block occupation information of the IE item SRS and the user-specific parameter information of the IE item SRS are IE items set on the LOAD INFORMATION message.
  • the PRB occupation indication of the IE item SRS includes: a CoMP SRS in PRB Indication per PRB;
  • the user-specific parameter information of the IE item SRS includes: a user-specific CoMP SRS information indication (CoMP SRS ue- Specific Information Indication ).
  • the number of transmission frequency combs of the SRS can be configured as 2, 3 or 4.
  • each PRB corresponds to 2 bits.
  • each PRB corresponds to 3 bits; when the number of frequency combs is 4, each PRB corresponds to 4 bits.
  • the UE-specific SRS parameter information sent by the ten-working cell through the X2 interface that is, the information content of the interaction includes one or several UE-specific SRS parameters:
  • SRS bandwidth ( srs-Bandwidth / srs-BandwidthAp ), set to: ENUMERATED ⁇ bwO, bwl, bw2, bw3 ⁇ ;
  • the bandwidth of the frequency domain Hopping ( srs-HoppingBandwidth ) is set to: ENUMERATED ⁇ hbwO , hbwl , hbw2 , hbw3 ⁇ ;
  • freqDomainPosition/freqDomainPositionAp set to: NTEGER ( 0...23 );
  • SRS transmission period (single or until not enabled) (duration), set to BOOLEAN;
  • the SRS configuration index ( srs-Configlndex / srs - ConfiglndexAp ) represents the period and start subframes, set to INTEGER ( 0..1023 ) /INTEGER ( 0..32 );
  • the transmitted comb structure ( transmissionComb/transmissionCombAp ) is set to INTEGER ( 0, 1 , 2, 3 );
  • the cyclic shift amount of the sequence (cyclicShift/cyclicShiftAp) is set to ENUMERATED ⁇ csO, csl, cs2, cs3, cs4, cs5, cs6, cs7 ⁇ .
  • the number of SRS transmit antennas ( srs-AntennaPort/srs-AntennaPortAp ) is set to INTEGER ( 0, 1 , 2, 4 );
  • the IE format is shown in Table 2 below:
  • the element corresponds to the user ue-specific durationAp
  • an embodiment of the present invention further provides an SRS sending system, including: a UE and a base station.
  • the UE is configured to send an SRS to the base station on the time domain resource, the frequency domain resource, and/or the code domain resource, where the time domain resource includes: a last time domain symbol of the subframe in which the SRS period is located, or the first The time domain symbol, or the second to last time domain symbol; the frequency domain resource includes: a frequency domain location of the SRS or a transmission frequency comb of the SRS; the code domain resource is obtained by: the UE adopting the high layer signaling according to the base station The user-specific parameters configured for the UE, the sequence group number of the SRS is generated, and the code domain resources required for transmitting the SRS are determined according to the sequence group number of the generated SRS.
  • the base station is configured to receive, by using the time domain resource, the frequency domain resource, and/or the code domain resource, the SRS sent by the UE.
  • the sequence group number of the SRS may be: a sequence group number used for the PUCCH, or a sequence group number of the DMRS used for the PUSCH.
  • sequence group number for the PUCCH can be obtained by:
  • M denotes a sequence group number for PUCCH
  • / gh ( « s ) denotes a group jump pattern
  • /J UCCH denotes a sequence shift pattern of PUCCH
  • mod denotes an ear 4 ⁇ operation.
  • /JUCCH can be derived in the following ways:
  • A indicates the physical layer cell identifier (ID)
  • a ss is the offset parameter configured by the high layer signaling for the PUSCH, A ss e ⁇ 0, l,..., 29 ⁇ ; ⁇ is the high layer signaling configured for the SRS Offset parameters, ⁇ ⁇ 0,1, ⁇ , 29 ⁇ .
  • /JUCCH can also be obtained by:
  • s represents a slot number within a radio frame, in each n
  • c init Initialize the pseudo-random sequence generator, n RNTI
  • a wireless network temporary identifier which is a user-specific number configured by the base station for the UE through high layer signaling.
  • the base station is further configured to configure the UE in the cell to which the base station belongs according to the received SRS resource occupation information sent by the coordinated cell through the X2 interface before the UE sends the SRS to the base station on the frequency domain resource.
  • the SRS of the cell does not overlap with the SRS frequency domain location or frequency comb to send the SRS.
  • the base station is further configured to: before the UE sends the SRS to the base station on the frequency domain resource, the base station sends the SRS resource occupation information of the local cell to the coordinated cell by using the X2 interface.
  • the resource occupancy information of the SRS is represented by the physical resource block (PRB) occupation indication of the SRS of the X2 interface, and the user-specific parameter information of the SRS of the IE item.
  • the PRB occupation indication of the IE item SRS includes: CoMP SRS in PRB Indication;
  • the user-specific parameter information of the IE item SRS includes: CoMP SRS ue-specific Information Indication
  • the physical resource block occupation information of the IE item SRS and the user-specific parameter information of the IE item SRS are IE items set on the LOAD INFORMATION message.

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Abstract

L'invention concerne un procédé et un système d'envoi d'un signal de référence de sondage (SRS, Sounding Reference Signal). Le procédé consiste à faire en sorte qu'un équipement d'utilisateur (UE) envoie un signal SRS à une station de base sur une ressource de domaine temporel, une ressource de domaine fréquentiel et/ou une ressource de domaine de code ; la ressource de domaine temporel comprenant : le dernier symbole de domaine temporel, le premier symbole de domaine temporel ou l'avant-dernier symbole de domaine temporel d'une sous-trame dans laquelle se trouve une période SRS ; la ressource du domaine fréquentiel contenant : la position du domaine fréquentiel ou un peigne de fréquences d'émission du signal SRS ; et la ressource de domaine de code étant obtenue par les méthodes suivantes : l'UE génère un numéro de groupe de séquence du signal SRS conformément à un paramètre propre à l'utilisateur configuré pour l'UE par la station de base au moyen d'une signalisation de couche supérieure, et détermine la ressource de domaine de code requise pour envoyer le signal SRS conformément au numéro de groupe de séquence généré pour le signal SRS. La présente invention permet d'augmenter les ressources disponibles du signal SRS, d'améliorer la capacité de multiplexage d'utilisateurs du signal SRS, et d'augmenter la qualité d'estimation du canal du signal SRS par une station de base, pour ainsi prendre en charge l'application plus efficace du système d'émission et de réception multipoints coordonné (CoMP).
PCT/CN2011/084454 2011-06-10 2011-12-22 Procédé et système d'envoi de signal srs Ceased WO2012167589A1 (fr)

Applications Claiming Priority (2)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107547455A (zh) * 2016-06-29 2018-01-05 华为技术有限公司 一种子帧配置方法及相关设备
CN108112081A (zh) * 2017-12-08 2018-06-01 中兴通讯股份有限公司 通信方法及系统
CN108112076A (zh) * 2017-05-05 2018-06-01 中兴通讯股份有限公司 配置上行信号的方法及装置
CN108123785A (zh) * 2017-11-17 2018-06-05 中兴通讯股份有限公司 通信方法及系统
CN108289330A (zh) * 2017-01-09 2018-07-17 中兴通讯股份有限公司 上行参考信号信息的指示方法及装置
CN108737010A (zh) * 2017-04-19 2018-11-02 中兴通讯股份有限公司 一种信息交互的方法及装置
CN111344999A (zh) * 2017-11-17 2020-06-26 瑞典爱立信有限公司 关于频率选择性srs传输和pusch预编码的系统和方法
WO2020206601A1 (fr) * 2019-04-09 2020-10-15 Qualcomm Incorporated Détermination de ressources de signal de référence de sondage pour un canal partagé de liaison montante physique avec une autorisation configurée
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Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102223726A (zh) * 2011-06-10 2011-10-19 中兴通讯股份有限公司 一种srs的发送方法和系统
CN103249147B (zh) * 2012-02-01 2018-07-24 中兴通讯股份有限公司 物理上行控制信道的资源配置方法和系统
CN107659390B (zh) * 2012-02-20 2021-01-01 Lg 电子株式会社 无线通信系统中传送上行链路信号的方法和设备
WO2013125840A1 (fr) 2012-02-20 2013-08-29 Lg Electronics Inc. Procédé et appareil d'émission d'un signal montant dans un système de communication sans fil
CN103312399B (zh) * 2012-03-16 2018-06-15 中兴通讯股份有限公司 物理上行共享信道解调参考信号的发送方法及用户设备
CN102843670B (zh) * 2012-08-15 2014-10-15 大唐移动通信设备有限公司 一种定位srs数据异常的方法及装置
WO2014117367A1 (fr) * 2013-01-31 2014-08-07 富士通株式会社 Procédé de configuration de ressources, procédé de mesure de liaison, ainsi que procédé et dispositif d'établissement de rapport de résultat de mesure
CN105122679B (zh) * 2013-04-15 2018-09-25 Lg电子株式会社 在无线接入系统中发送探测参考信号的方法和设备
JP5878594B2 (ja) * 2014-07-11 2016-03-08 株式会社Ｎｔｔドコモ ユーザ端末、無線通信方法及び無線通信システム
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CN106375074A (zh) * 2015-07-21 2017-02-01 中兴通讯股份有限公司 一种测量参考信号的传输方法及系统
ES2974924T3 (es) 2015-08-13 2024-07-02 Huawei Tech Co Ltd Método de transmisión de señal de referencia de enlace ascendente, terminal de usuario y estación base
CN107277921B (zh) * 2016-04-08 2021-06-01 华为技术有限公司 上行参考信号的传输方法、设备和系统
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WO2018126474A1 (fr) 2017-01-09 2018-07-12 Qualcomm Incorporated Transmission de ports de signaux de référence de sondage multiplexés dans une nouvelle radio
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EP3618551B1 (fr) 2017-06-16 2021-04-21 Guangdong Oppo Mobile Telecommunications Corp., Ltd. Procédé de transmission de canal et dispositif terminal
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CN113366900B (zh) * 2019-07-22 2023-03-24 Oppo广东移动通信有限公司 探测参考信号传输方法和装置
CN111865545B (zh) * 2020-04-14 2025-10-17 中兴通讯股份有限公司 Srs的传输方法、装置、系统、存储介质及电子装置
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WO2024087743A1 (fr) * 2023-07-14 2024-05-02 Lenovo (Beijing) Limited Procédés et appareils pour srs avec saut de cs et/ou saut de décalage de peigne

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330325A (zh) * 2008-07-29 2008-12-24 中兴通讯股份有限公司 一种上行信道测量参考信号的传输方法
CN101540631A (zh) * 2009-04-27 2009-09-23 中兴通讯股份有限公司 测量参考信号的多天线发送方法及装置
CN101808409A (zh) * 2010-04-01 2010-08-18 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
WO2010110526A1 (fr) * 2009-03-25 2010-09-30 Lg Electronics Inc. Procédé d'émission d'un signal de référence de sondage dans un système de communications sans fil et appareil à cet effet
CN101931957A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种控制下行测量参考信号干扰的方法和设备
CN102223726A (zh) * 2011-06-10 2011-10-19 中兴通讯股份有限公司 一种srs的发送方法和系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101771435B (zh) * 2009-01-05 2013-01-02 电信科学技术研究院 多载波聚合系统及其选择上行参考信号的方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101330325A (zh) * 2008-07-29 2008-12-24 中兴通讯股份有限公司 一种上行信道测量参考信号的传输方法
WO2010110526A1 (fr) * 2009-03-25 2010-09-30 Lg Electronics Inc. Procédé d'émission d'un signal de référence de sondage dans un système de communications sans fil et appareil à cet effet
CN101540631A (zh) * 2009-04-27 2009-09-23 中兴通讯股份有限公司 测量参考信号的多天线发送方法及装置
CN101931957A (zh) * 2009-06-22 2010-12-29 大唐移动通信设备有限公司 一种控制下行测量参考信号干扰的方法和设备
CN101808409A (zh) * 2010-04-01 2010-08-18 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
CN102223726A (zh) * 2011-06-10 2011-10-19 中兴通讯股份有限公司 一种srs的发送方法和系统

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN108737010A (zh) * 2017-04-19 2018-11-02 中兴通讯股份有限公司 一种信息交互的方法及装置
CN108737010B (zh) * 2017-04-19 2024-04-30 中兴通讯股份有限公司 一种信息交互的方法及装置
US11711812B2 (en) 2017-05-05 2023-07-25 Zte Corporation Method and apparatus for configuring uplink signal, and method and apparatus for determining uplink signal
CN108112076A (zh) * 2017-05-05 2018-06-01 中兴通讯股份有限公司 配置上行信号的方法及装置
CN108112076B (zh) * 2017-05-05 2023-11-21 中兴通讯股份有限公司 配置上行信号的方法及装置
CN111344999A (zh) * 2017-11-17 2020-06-26 瑞典爱立信有限公司 关于频率选择性srs传输和pusch预编码的系统和方法
CN108123785B (zh) * 2017-11-17 2023-09-26 中兴通讯股份有限公司 通信方法及系统
CN108123785A (zh) * 2017-11-17 2018-06-05 中兴通讯股份有限公司 通信方法及系统
US12081382B2 (en) 2017-11-17 2024-09-03 Telefonaktiebolaget Lm Ericsson (Publ) Systems and methods regarding frequency- selective SRS transmission and PUSCH precoding
CN108112081A (zh) * 2017-12-08 2018-06-01 中兴通讯股份有限公司 通信方法及系统
CN108112081B (zh) * 2017-12-08 2024-03-26 中兴通讯股份有限公司 通信方法及系统
WO2020206601A1 (fr) * 2019-04-09 2020-10-15 Qualcomm Incorporated Détermination de ressources de signal de référence de sondage pour un canal partagé de liaison montante physique avec une autorisation configurée
US12267197B2 (en) 2019-11-07 2025-04-01 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Ambiguity/aliasing cancellation or reduction for staggered reference signals

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