WO2011012087A1 - 一种探测参考信号的发送方法、装置和系统 - Google Patents

一种探测参考信号的发送方法、装置和系统 Download PDF

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Publication number
WO2011012087A1
WO2011012087A1 PCT/CN2010/075592 CN2010075592W WO2011012087A1 WO 2011012087 A1 WO2011012087 A1 WO 2011012087A1 CN 2010075592 W CN2010075592 W CN 2010075592W WO 2011012087 A1 WO2011012087 A1 WO 2011012087A1
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Prior art keywords
srs
comp
sequence
base sequence
user equipment
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PCT/CN2010/075592
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English (en)
French (fr)
Inventor
彭莹
高秋彬
杨鼎成
缪德山
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大唐移动通信设备有限公司
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Application filed by 大唐移动通信设备有限公司 filed Critical 大唐移动通信设备有限公司
Priority to KR1020117030047A priority Critical patent/KR101366729B1/ko
Priority to JP2012521951A priority patent/JP5531100B2/ja
Priority to US13/382,929 priority patent/US9794101B2/en
Priority to EP10803920.7A priority patent/EP2461642B1/en
Publication of WO2011012087A1 publication Critical patent/WO2011012087A1/zh

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Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/022—Site diversity; Macro-diversity
    • H04B7/024—Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0032—Distributed allocation, i.e. involving a plurality of allocating devices, each making partial allocation
    • H04L5/0035—Resource allocation in a cooperative multipoint environment
    • 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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network

Definitions

  • the present invention relates to the field of mobile communication technologies, and in particular, to a method, device and system for transmitting a sounding reference signal. Background technique
  • the ITU International Telecommunication Union
  • MT-Advanced Advanced International Mobile Telecommunications
  • the maximum system transmission bandwidth reaches 100MHz, uplink and downlink.
  • the peak rate of data transmission needs to reach 1 Gbps and 500 M bps, and there is a very high demand for the average spectral efficiency of the system, especially the edge spectrum efficiency.
  • 3GPP 3rd Generation Partnership Project proposes to adopt multi-point coordinated transmission technology to improve the next-generation mobile cellular communication system LTE-Advanced (Advanced Long Term Evolution) system. System performance.
  • the multi-point coordinated transmission technology is a cooperation between a plurality of transmission points separated geographically, and the plurality of transmission points are base stations of different cells.
  • the multi-point coordinated transmission technology is divided into downlink coordinated transmission and uplink joint reception, and the downlink coordinated transmission includes a joint scheduling scheme and a joint transmission scheme.
  • the joint scheduling scheme allocates mutually orthogonal resources to different UEs (User Equipments) through coordination of time, frequency, and space resources between cells, thereby avoiding mutual interference and reducing interference between cells. Therefore, the performance of the cell edge UE is improved.
  • UEs User Equipments
  • multiple cells simultaneously send data to the same UE on the same resource, so as to enhance the strength of the signal received by the UE, by using useful signals from multiple cells.
  • the superimposition can improve the signal quality received by the UE, and can also reduce the interference received by the UE, thereby improving system performance.
  • the uplink joint reception means that multiple cells simultaneously receive data sent by one UE, and each cell performs joint processing on the received data to Improve the demodulation quality of the data.
  • the UE sends an uplink SRS (Sounding Reference Signal) to the eNodeB (Evolved Node-B) on the time and frequency resources specified by the camping cell, and the eNodeB estimates the received SRS according to the received SRS.
  • the channel information between the UE and the eNodeB is used as a basis for uplink frequency domain scheduling, MCS (Modulation and Coding Scheme) selection, and resource allocation.
  • MCS Modulation and Coding Scheme
  • the eNodeB can also calculate a weight vector of the downlink beamforming based on the obtained uplink channel information.
  • the SRS resource allocation of the LTE system is based on the cell, and the UE in the small area allocates orthogonal SRS resources, and the SRS of the neighboring cell may be configured to be transmitted in different subframes.
  • the base sequence of the SRS is bound to the cell ID of the camping cell, that is, both the eNodeB and the UE can obtain the base sequence consistently when acquiring the cell ID.
  • the CoMP SRS base sequence used by the cell in the CoMP (Comp coordinated Multi-Point) SRS cluster is not bound to the cell ID, the UE cannot learn the sequence of the SRS. information.
  • Embodiments of the present invention provide a method, an apparatus, and a system for transmitting a sounding reference signal, which ensure accuracy of channel estimation.
  • the embodiment of the present invention provides a method for transmitting a sounding reference signal SRS, which includes the following steps:
  • the user equipment receives the multi-point coordinated transmission CoMP-specific SRS sequence from the base station device Column information, the base station device corresponding to a cell in a CoMP SRS set cluster; the user equipment according to the CoMP-specific SRS sequence information to the CoMP
  • the cell in the SRS cluster sends an SRS.
  • the embodiment of the invention further provides a user equipment, including:
  • a receiving module configured to receive a multi-point coordinated transmission CoMP-specific SRS sequence information from a base station device, where the base station device corresponds to a cell in a CoMP SRS cluster; and a sending module, configured to receive, according to the receiving module, a CoMP-dedicated SRS The sequence information sends an SRS to a cell within the CoMP SRS cluster.
  • the embodiment of the invention further provides a base station device, including:
  • An obtaining module configured to obtain CoMP-specific SRS sequence information corresponding to a cell in the CoMP SRS cluster
  • a sending module configured to send the CoMP-specific SRS sequence information acquired by the acquiring module to the user equipment, so that the user equipment sends the SRS according to the CoMP-specific SRS sequence information.
  • the embodiment of the invention further provides a SRS transmission system, which includes a user equipment and a base station equipment.
  • the user equipment configured to receive CoMP-specific SRS sequence information from the base station device, and send an SRS to a cell in the CoMP SRS cluster according to the received CoMP-specific SRS sequence information, where the base station device and the CoMP SRS The cells in the cluster are responsive;
  • the base station device is configured to acquire the CoMP-specific SRS sequence information corresponding to the cell in the CoMP SRS cluster, and send the obtained CoMP-specific SRS sequence information to the user equipment, so that the user equipment is configured according to the CoMP The SRS sequence information is sent to the SRS.
  • the technical solution of the embodiment of the present invention has the following advantages:
  • the CoMP SRS base sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID because the notification manner and the sequence notification format of the SRS base sequence based on the coordinated multi-point transmission technology are provided.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 1 is a flowchart of a method for transmitting an SRS according to Embodiment 1 of the present invention
  • FIG. 2 is a flowchart of a method for transmitting an SRS according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic diagram of sending a SRS according to Embodiment 3 of the present invention
  • FIG. 4 is a flowchart of a method for transmitting an SRS according to Embodiment 4 of the present invention
  • FIG. 5 is a flowchart of a method for transmitting an SRS according to Embodiment 5 of the present invention
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present invention
  • Embodiment 8 is a schematic structural diagram of a base station device according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic structural diagram of a SRS transmission system according to Embodiment 9 of the present invention. detailed description
  • the UE in the serving cell adopts the same SRS base sequence notification mode and notification as the LTE system.
  • Form, and other serving cells need to adopt a different SRS base sequence notification mode and notification form than the LTE system;
  • the CoMP SRS base sequence is separately selected, that is, not bound to the ID of any serving cell in the CoMP SRS cluster,
  • the cells in the CoMP SRS cluster need to adopt the SRS-based sequence notification mode and notification form different from the LTE system.
  • the separately selected CoMP SRS base sequence is different from the sequence group used by any cell included in the CoMP SRS cluster, and can be arbitrarily selected and kept as low as possible with the sequence group used by the cell in the CoMP SRS cluster.
  • the SRS-based sequence notification manner in the embodiment of the present invention may be an RRC signaling notification, a downlink control signaling notification, or a broadcast notification.
  • the notification form of the SRS-based sequence includes a group ID or a base sequence itself that notifies a CoMP-specific SRS sequence, and may also be set. A set of CoMP-specific SRS sequences and informs the sequence number of the SRS sequence in the set.
  • FIG. 1 it is a flowchart of a method for sending an SRS according to Embodiment 1 of the present invention, which includes the following steps:
  • Step 101 The user equipment receives CoMP-specific SRS sequence information from the base station device, where the base station device corresponds to a cell in the CoMP SRS cluster.
  • the CoMP SRS cluster is a set of cells for performing coordinated multi-point transmission, and the CoMP-specific SRS sequence information is used to indicate that the base station device corresponding to the cell in the CoMP SRS cluster is a CoMP SRS base sequence selected by the CoMP SRS cluster.
  • CoMP specific SRS sequence information may SRS base sequence corresponding to a CoMP sequence group (sequence-group number) and motifs bad No. 1 (base sequence number) J, may be a CoMP SRS base sequence, may be a CoMP SRS-yl sequence
  • the number in the base sequence set may also be the group ID of the CoMP SRS cluster, the group ID of the CoMP SRS cluster, the group ID and the base sequence identifier, or the group ID and sequence. ID number.
  • the CoMP-specific SRS sequence information may be bound to the SRS sequence of a cell in the CoMP SRS cluster, or may not be bound to the SRS sequence of all cells in the CoMP SRS cluster, so as to be used as possible with the cells in the CoMP SRS cluster.
  • the sequence group maintains a low degree of interference.
  • the CoMP-specific SRS sequence information further includes a cyclic shift value
  • the cyclic shift value may use the same or different set as the LTE system, and different cyclic shift value sets are configured as needed in different CoMP SRS clusters.
  • the cell in the CoMP SRS cluster may send the CoMP-specific SRS sequence information to the user equipment by means of RRC signaling, downlink control signaling, or broadcast notification.
  • the cell that sends the CoMP-dedicated SRS sequence information to the UE may be the serving cell of the UE, or may be another cell of the UE.
  • Step 102 The user equipment sends CoMP SRS sequence information to CoMP SRS.
  • the cell in the cluster sends the SRS.
  • the user equipment may obtain a corresponding CoMP SRS base sequence according to the received CoMP-specific SRS sequence information, and perform SRS on the time-frequency resource scheduled by the base station device by using the base sequence, the cyclic shift value, and the SRS configuration information.
  • the SRS configuration information includes information such as bandwidth and period.
  • the user equipment may use the CoMP-specific SRS sequence information to transmit the SRS, or reconfigure the CoMP-specific SRS sequence information, or perform sequence jump according to the SRS-specific predefined jump mode.
  • the SRS transmission method based on the CDM Code Division Multiplexing
  • CDM Code Division Multiplexing
  • the technical solution provided in the embodiment of the present invention may also be applied to other SRSs.
  • Transmission methods including but not limited to FDM (Frequency Division Multiplexing) based SRS, FDM/CDM based SRS and other transmission methods.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 2 it is a flowchart of a method for sending an SRS according to Embodiment 2 of the present invention, which includes the following steps:
  • Step 201 The base station device allocates the same CoMP SRS OFDM symbol (symbol) set and CoMP SRS sequence group to each cell in the CoMP SRS cluster.
  • the base sequence of the CoMP SRS sequence group and any one of the CoMP SRS clusters is different, or is the same as the base sequence of a certain cell in the CoMP SRS cluster.
  • Step 202 The base station device selects a CoMP SRS base sequence in the time slot, and opens Group-hopping-enabled (group jump activation) signaling by using high layer signaling, and selects a sequence-shift pattern (sequence ⁇ 'J shift pattern). Specifically, you can use the following formula to select the sequence-shift pattern:
  • the d CoMP dedicated sequence shift pattern; d CoMP SRS cluster identifier that is, the group identifier group ID of the CoMP SRS cluster.
  • the sequence-shift pattern of the PUSCH can be obtained through high-level configuration or a predetermined calculation.
  • Step 203 The base station device notifies the UE of the sequence group number, the base sequence number, and the cyclic shift value corresponding to the CoMP SRS base sequence by using RRC signaling.
  • sequence group number and the base sequence number can be calculated by the following formulas:
  • u is the sequence group number (group number); / gA ("J is the group jump pattern; MP is the CoMP dedicated sequence shift pattern;
  • V is a group sequence number (base sequence number); a pseudo-random sequence; c Mt to the initial value; / T SCT a sequence of shift patterns; ⁇ COMP SRS cluster identifier, i.e. the group identifier CoMP SRS cluster group ⁇
  • the cyclic shift value can be configured to each user by the higher layer, and the set of values of the cyclic shift can be the same as the LTE system, that is, ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , considering the interference problem and The cyclic shift value can also be reduced correspondingly if the amount of resources allows, such as ⁇ 0, 2, 4, 6 ⁇ , ⁇ 1, 3, 5, 7 ⁇ , etc.
  • Different CoMP SRS clusters can be configured differently according to requirements. Loop shift collection.
  • the base station device may also send the above information to the user equipment by means of downlink control signaling or broadcast notification.
  • Step 204 The UE determines the CoMP SRS according to the received sequence group number and the base sequence number.
  • the base sequence and using the base sequence, the cyclic shift value, and the SRS configuration information, performs SRS transmission on the time-frequency resources scheduled by the base station device.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 3 it is a flowchart of a method for sending an SRS according to Embodiment 3 of the present invention, which includes the following steps:
  • Step 301 The base station device allocates the same CoMP SRS OFDM symbol set and CoMP SRS sequence group to each cell in the CoMP SRS cluster.
  • the base sequence of the CoMP SRS sequence group and any one of the CoMP SRS clusters is different, or is the same as the base sequence of a certain cell in the CoMP SRS cluster.
  • Step 302 The base station device selects a CoMP SRS base sequence in the slot n s .
  • Step 303 The base station device notifies the UE of the CoMP SRS base sequence and the cyclic shift value by using RRC signaling.
  • the cyclic shift value can be configured by each upper layer to each user, and the set of values of the cyclic shift can be the same as the LTE system, that is, ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , considering interference
  • the problem and the cyclic shift value can be reduced accordingly if the amount of resources allows, such as ⁇ 0, 2, 4, 6 ⁇ , ⁇ 1, 3, 5, 7 ⁇ , etc., different CoMP SRS clusters can be needed as needed Configure different sets of cyclic shifts.
  • the base station device may also send the above information to the user equipment by means of downlink control signaling or broadcast notification.
  • Step 304 The UE performs SRS transmission on the scheduled time-frequency resource of the base station device according to the received CoMP SRS base sequence, the cyclic shift value, and the SRS configuration information.
  • the UE may use the same SRS base sequence as the current SRS transmission, or may reconfigure the SRS base sequence, or pre-defined according to SRS.
  • the frequency hopping method performs sequence frequency hopping.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 4 it is a flowchart of a method for sending an SRS according to Embodiment 4 of the present invention, which includes the following steps:
  • Step 401 The base station device allocates the same CoMP SRS OFDM symbol set and CoMP SRS sequence group to each cell in the CoMP SRS cluster.
  • the base sequence of the CoMP SRS sequence group and any one of the CoMP SRS clusters is different, or is the same as the base sequence of a certain cell in the CoMP SRS cluster.
  • Step 402 The base station device selects at least two CoMP SRS base sequences in the slot n s , uses all selected CoMP SRS base sequences as a base sequence set, and numbers the CoMP SRS base sequences in the base sequence set.
  • Step 403 The base station device notifies the UE of the number and cyclic shift value of the CoMP SRS base sequence in the sequence sequence set by using RRC signaling.
  • the cyclic shift value can be configured by each upper layer to each user, and the set of values of the cyclic shift can be the same as the LTE system, that is, ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , considering interference
  • the problem and the cyclic shift value can be reduced accordingly if the amount of resources allows, such as ⁇ 0, 2, 4, 6 ⁇ , ⁇ 1, 3, 5, 7 ⁇ , etc., different CoMP SRS clusters can be needed as needed Configure different sets of cyclic shifts.
  • the base station device may also send the above information to the user equipment by means of downlink control signaling or broadcast notification.
  • Step 404 The UE determines a CoMP SRS base sequence according to the number of the received CoMP SRS base sequence, and uses the base sequence, the cyclic shift value, and the SRS configuration information to perform SRS transmission on the time-frequency resource scheduled by the base station device.
  • the UE may use the same SRS base sequence as the current SRS transmission, or may reconfigure the SRS base sequence, or perform sequence frequency hopping according to the SRS predefined frequency hopping manner.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 5 it is a flowchart of a method for sending an SRS according to Embodiment 5 of the present invention, which includes the following steps:
  • Step 501 The base station device allocates the same CoMP SRS OFDM symbol set and CoMP SRS sequence group to each cell in the CoMP SRS cluster.
  • the base sequence of the CoMP SRS sequence group and any one of the CoMP SRS clusters is different, or is the same as the base sequence of a certain cell in the CoMP SRS cluster.
  • Step 502 The base station device selects a CoMP SRS base sequence in a time slot, forms a set of optional group IDs of the base sequence, and numbers each group ID in the set.
  • Step 503 The base station device notifies the UE of the number of the group ID and the cyclic shift value by using RRC signaling.
  • the base station apparatus may be a slot or a set of optional ⁇ 3 ⁇ 4 ⁇ set ID to notify the UE.
  • the cyclic shift value can be configured by each upper layer to each user, and the set of cyclic shift values can be the same as the LTE system, that is, ⁇ 0, 1, 2, 3, 4, 5, 6, 7 ⁇ , considering interference
  • the problem and the cyclic shift value can be reduced accordingly if the amount of resources allows, such as ⁇ 0, 2, 4, 6 ⁇ , ⁇ 1, 3, 5, 7 ⁇ , etc., different CoMP SRS clusters can be needed as needed Configure different sets of cyclic shifts.
  • the base station device can also use downlink control signaling or broadcast notification.
  • the above information is sent to the user equipment.
  • Step 504 The UE obtains a CoMP SRS base sequence according to the received number of the group ID, and performs SRS transmission on the time-frequency resource scheduled by the base station device by using the cyclic shift value and the SRS configuration information.
  • the UE may use the same SRS base sequence as the current SRS transmission, or may reconfigure the SRS base sequence, or perform sequence frequency hopping according to the SRS predefined frequency hopping manner.
  • the base station device may also select a CoMP SRS base sequence, determine a group ID that determines the base sequence, and send the group ID to the user equipment, where the user equipment determines a corresponding CoMP SRS base sequence according to the group ID, and uses the base sequence, The cyclic shift value and the SRS configuration information are sent to the SRS.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 6 it is a flowchart of a method for sending an SRS according to Embodiment 6 of the present invention, which includes the following steps:
  • Step 601 The base station device allocates the same CoMP SRS OFDM symbol set and CoMP SRS sequence group to each cell in the CoMP SRS cluster.
  • the base sequence of the CoMP SRS sequence group and any one of the CoMP SRS clusters is different, or is the same as the base sequence of a certain cell in the CoMP SRS cluster.
  • Step 602 The base station device selects a CoMP SRS base sequence in the time slot, and determines a N ⁇ MP and a plurality of base sequence identifiers present under the slot, that is, a sequence ID.
  • Step 603 The base station device notifies the UE of the group ID, the sequence ID, and the cyclic shift value by using RRC signaling.
  • the cyclic shift value can be configured by the upper layer to each user, and the value of the cyclic shift is The set can be the same as the LTE system, ie ⁇ 0, 1 , 2, 3, 4, 5, 6, 7 ⁇ , and the cyclic shift value can be reduced accordingly, considering the interference problem and the amount of resources allowed, such as ⁇ 0, 2, 4, 6 ⁇ , ⁇ 1, 3, 5, 7 ⁇ , etc.
  • Different CoMP SRS clusters can be configured with different cyclic shift sets as needed.
  • the base station device may also send the above information to the user equipment by means of downlink control signaling or broadcast notification.
  • Step 604 The UE determines a CoMP SRS base sequence according to the received group ID and the sequence ID, and uses the base sequence, the cyclic shift value, and the SRS configuration information to perform SRS transmission on the time-frequency resources scheduled by the base station device.
  • the UE may use the same SRS base sequence as the current SRS transmission, or may reconfigure the SRS base sequence, or perform sequence frequency hopping according to the SRS predefined frequency hopping manner.
  • the base station device may also select a CoMP SRS base sequence, determine the number of the group ID and the sequence ID that determines the sequence ⁇ 1 J, and send the number of the group ID and the sequence ID to the user equipment, where the user equipment belongs to the group ID and the sequence ID.
  • the number of the corresponding CoMP SRS base sequence is determined, and the SRS is transmitted using the base sequence, the cyclic shift value, and the SRS configuration information.
  • the method of the present invention can adjust the sequence of each step according to actual needs.
  • FIG. 7 is a schematic structural diagram of a user equipment according to Embodiment 7 of the present invention, including:
  • the receiving module 710 is configured to receive CoMP-specific SRS sequence information from the base station device, where the base station device corresponds to a cell in the CoMP SRS cluster.
  • the sending module 720 is configured to send the SRS to the cell in the CoMP SRS cluster according to the CoMP-specific SRS sequence information received by the receiving module 710.
  • the receiving module 710 is specifically configured to receive CoMP-specific SRS sequence information in any of the following manners:
  • RRC signaling downlink control signaling, and broadcast notification.
  • the foregoing CoMP-specific SRS sequence information may include a cyclic shift value, and a sequence group number and a base sequence number corresponding to the CoMP SRS base sequence.
  • the sending module 720 is specifically configured to determine a corresponding CoMP SRS base according to the sequence group number and the base sequence number. Sequence, and use the base sequence, cyclic shift value, and SRS configuration information to send the SRS.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value and a CoMP SRS base sequence, and the foregoing sending module 720 is specifically configured to send the SRS by using the base sequence, the cyclic shift value, and the SRS configuration information.
  • the CoMP-specific SRS sequence information may also include a cyclic shift value and a number of the CoMP SRS base sequence in the base sequence set.
  • the sending module 720 is specifically configured to determine the corresponding CoMP according to the number in the base sequence set of the CoMP SRS base sequence.
  • the SRS base sequence, and the SRS is transmitted using the base sequence, the cyclic shift value, and the SRS configuration information.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value and a group ID of the CoMP SRS cluster.
  • the sending module 720 is specifically configured to determine a corresponding CoMP SRS base sequence according to the group ID, and use the base sequence and the The cyclic shift value and the SRS configuration information are sent to the SRS.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value and a group ID number of the CoMP SRS cluster.
  • the sending module 720 is specifically configured to obtain a corresponding CoMP SRS base sequence according to the number of the group ID, and use the base sequence. And the cyclic shift value and the SRS configuration information are sent by the SRS.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value, and a group ID and a sequence ID of the CoMP SRS cluster, where the sending module 720 is specifically configured to determine a corresponding CoMP SRS base sequence according to the group ID and the sequence ID, and The SRS is transmitted using the base sequence, the cyclic shift value, and SRS configuration information.
  • the above CoMP-specific SRS sequence information may also include a cyclic shift value, and The number of the group ID and the sequence ID of the CoMP SRS cluster, where the sending module 720 is configured to determine a corresponding CoMP SRS base sequence according to the number of the group ID and the sequence ID, and use the base sequence, the cyclic shift The value and SRS configuration information are sent to the SRS.
  • the foregoing sending module 720 is further configured to send the SRS by using the CoMP-specific SRS sequence information for the subsequent SRS transmission, or reconfigure the CoMP-specific SRS sequence information, or perform a sequence jump according to a predefined jump mode unique to the SRS.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • FIG. 8 is a schematic structural diagram of a base station device according to Embodiment 8 of the present invention, including:
  • the obtaining module 810 is configured to obtain CoMP-specific SRS sequence information corresponding to the cell in the CoMP SRS cluster.
  • the sending module 820 is configured to send the CoMP-specific SRS sequence information acquired by the obtaining module 810 to the user equipment, so that the user equipment sends the SRS according to the CoMP-specific SRS sequence information.
  • the sending module 820 is specifically configured to send CoMP-specific SRS sequence information to the user equipment by using any one of the following methods:
  • RRC signaling downlink control signaling, and broadcast notification.
  • the foregoing CoMP-specific SRS sequence information includes a cyclic shift value, and a sequence group number and a base sequence number corresponding to the CoMP SRS base sequence.
  • the acquiring module 810 is specifically configured to select a CoMP SRS base sequence, and determine a sequence group that determines the base sequence. Number and base serial number.
  • the foregoing CoMP-specific SRS sequence information includes a cyclic shift value and a CoMP SRS base sequence
  • the foregoing obtaining module 810 is specifically configured to select a CoMP SRS base sequence.
  • the foregoing CoMP-specific SRS sequence information may include a cyclic shift value and a number of the CoMP SRS base sequence in the base sequence set.
  • the obtaining module 810 is specifically configured to select a CoMP SRS base sequence and use the selected CoMP SRS base sequence as a base sequence. The set, and number the CoMP SRS base sequences in the base sequence set.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value and a group ID of the CoMP SRS cluster.
  • the obtaining module 810 is specifically configured to select a CoMP SRS base sequence and determine a group ID of the determined base sequence.
  • the above-mentioned CoMP-specific SRS sequence information may also include a cyclic shift value and a group ID number of the CoMP SRS cluster.
  • the obtaining module 810 is specifically configured to select a CoMP SRS base sequence, and form an optional group ID that determines the base sequence into a set. And number each group ID in the collection.
  • the foregoing CoMP-specific SRS sequence information may also include a cyclic shift value, and a group ID and a sequence ID of the CoMP SRS cluster, and the above-mentioned octet block 810 is specifically configured to select a CoMP SRS base sequence, and determine a group ID and a sequence ID.
  • the above-mentioned CoMP-specific SRS sequence information may also include a cyclic shift value, and a group ID and a sequence ID number of the CoMP SRS cluster.
  • the obtaining module 810 is specifically configured to select a CoMP SRS base sequence, and determine the number of the group ID and the sequence ID.
  • FIG. 9 is a schematic structural diagram of a SRS transmission system according to Embodiment 9 of the present invention, including a user equipment 910 and a base station apparatus 920, where
  • the user equipment 910 is configured to receive CoMP-specific SRS sequence information from the base station device 920, and send an SRS to the cell in the CoMP SRS cluster according to the received CoMP-specific SRS sequence information, where the base station device 920 and the cell in the CoMP SRS cluster Correspondence.
  • the base station device 920 is configured to obtain the CoMP-specific SRS sequence information corresponding to the cell in the CoMP SRS cluster, and send the obtained CoMP-specific SRS sequence information to the user equipment 910, so that the user equipment 910 sends the SRS according to the CoMP-specific SRS sequence information.
  • the technical solution of the embodiment of the present invention has the following advantages, because the notification mode and the sequence notification form of the SRS-based sequence based on the coordinated multi-point transmission technology are provided, and the CoMP SRS-based sequence used by the cell in the CoMP SRS cluster is not tied to the cell ID.
  • the timing information is provided to the UE, which reduces the interference of CoMP SRS resources between cells and the SRS interference on CoMP and non-CoMP SRS resources, and ensures the accuracy of channel estimation.
  • the present invention can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is a better implementation. the way.
  • the technical solution of the present invention which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium, including a plurality of instructions for making a A terminal device (which may be a cell phone, a personal computer, a server, or a network device, etc.) performs the methods described in various embodiments of the present invention.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or may be correspondingly changed in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be integrated into one body or may be deployed separately, may be combined into one module, or may be further split into multiple sub-modules.

Description

一种探测参者信号的发送方法、 装置和系统 本申请要求于 2009 年 7 月 30 日提交中国专利局， 申请号为 200910090014.6, 发明名称为 "一种探测参考信号的发送方法、 装置 和系统" 的中国专利申请的优先权， 其全部内容通过引用结合在本申 请中。 技术领域
本发明涉及移动通信技术领域，特别是涉及一种探测参考信号的 发送方法、 装置和系统。 背景技术
目前, ITU ( International Telecommunication Union, 国际电信联 盟） 为下一代移动通信系统—— MT-Advanced (高级国际移动通信） 系统的性能提出了非常苛刻的要求， 例如， 最大系统传输带宽达到 100MHz, 上下行数据传输的峰值速率需要达到 lGbps和 500M bps, 并对系统平均频谱效率尤其是边缘频谱效率提出了非常高的需求。
为了满足 MT-Advanced 系统的要求， 3GPP ( 3rd Generation Partnership Project, 第三代合作伙伴计划）在下一代移动蜂窝通信系 统 LTE-Advanced (高级长期演进） 系统中提出了采用多点协同传输 技术来提高系统的性能。
多点协同传输技术是地理位置上分离的多个传输点之间的协作， 多个传输点是不同小区的基站。多点协同传输技术分下行协同传输和 上行联合接收， 下行协同传输包括联合调度方案和联合发送方案。 其 中， 联合调度方案通过小区之间的时间、 频率和空间资源的协调， 为 不同的 UE ( User Equipment, 用户设备 )分配互相正交的资源， 避免 相互之间的干扰，降低小区间的干扰，从而提高小区边缘 UE的性能； 联合发送方案中， 多个小区在相同的资源上同时向同一个 UE发送数 据， 以增强 UE接收到的信号的强度， 通过来自多个小区的有用信号 叠加可以提升 UE接收的信号质量， 还可以降低 UE受到的干扰， 从 而提高系统性能； 上行联合接收是指多个小区同时接收一个 UE发出 的数据， 各小区对接收到的数据进行联合处理， 以提高数据的解调质 量。
在 LTE 系统中， UE在其驻留小区指定的时间和频率资源上向 eNodeB ( Evolved Node-B, 演进节点 B )发送上行 SRS ( Sounding Reference Signal,探测参考信号）， eNodeB根据接收到的 SRS估计出 UE到 eNodeB之间的信道信息，作为上行频域调度、 MCS( Modulation and Coding Scheme, 调制编码方案 )选择和资源分配的依据。 对于 TDD ( Time Division Duplex, 时分双工） 系统， eNodeB还可以根据 得到的上行信道信息计算下行波束赋形的加权向量。
发明人在实现本发明的过程中， 发现现有技术至少存在如下问 题：
在现有的 LTE系统中， LTE系统 SRS资源的分配是以小区为单 位， 小区内 UE分配正交的 SRS资源之间， 相邻小区的 SRS可能会 配置在不同的子帧内传输。 同时， SRS的基序列是和驻留小区的小区 ID绑定的， 即 eNodeB和 UE均在获取小区 ID的情况下， 可以一致 地得到基序列。 而在 LTE-Advanced 系统中， 当 CoMP ( Comp coordinated Multi-Point, 多点协同传输） SRS cluster (集合） 内的小 区使用的 CoMP SRS基序列不与小区 ID绑定时， UE无法获知 SRS 的序列信息。
发明内容
本发明实施例提供一种探测参考信号的发送方法、 装置和系统， 保证了信道估计的准确性。
本发明实施例提出一种探测参考信号 SRS 的发送方法， 包括以 下步骤：
用户设备接收来自基站设备的多点协同传输 CoMP专用 SRS序 列信息， 所述基站设备与 CoMP SRS 集合 cluster内的小区相对应； 所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP
SRS cluster内的小区发送 SRS。
本发明实施例还提出一种用户设备， 包括：
接收模块， 用于接收来自基站设备的多点协同传输 CoMP 专用 SRS序列信息， 所述基站设备与 CoMP SRS cluster内的小区相对应； 发送模块， 用于根据所述接收模块接收到的 CoMP专用 SRS序 列信息向所述 CoMP SRS cluster内的小区发送 SRS。
本发明实施例还提出一种基站设备， 包括：
获取模块， 用于获取 CoMP SRS cluster内的小区对应的 CoMP 专用 SRS序列信息；
发送模块， 用于将所述获取模块获取的 CoMP专用 SRS序列信 息发送到用户设备， 使所述用户设备根据所述 CoMP专用 SRS序列 信息发送 SRS。
本发明实施例还提出一种 SRS 的发送系统， 包括用户设备和基 站设备，
所述用户设备， 用于接收来自所述基站设备的 CoMP专用 SRS 序列信息，根据所述接收到的 CoMP专用 SRS序列信息向 CoMP SRS cluster内的小区发送 SRS,所述基站设备与所述 CoMP SRS cluster内 的小区相^应；
所述基站设备，用于获取所述 CoMP SRS cluster内的小区对应的 CoMP专用 SRS序列信息， 将所述获取的 CoMP专用 SRS序列信息 发送到所述用户设备， 使所述用户设备根据所述 CoMP专用 SRS序 列信息发送 SRS。
本发明实施例的技术方案具有以下优点： 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 附图说明
图 1为本发明实施例一中的 种 SRS的发送方法流程图； 图 2为本发明实施例二中的 种 SRS的发送方法流程图； 图 3为本发明实施例三中的 种 SRS的发送方法流程图； 图 4为本发明实施例四中的 种 SRS的发送方法流程图； 图 5为本发明实施例五中的 种 SRS的发送方法流程图； 图 6为本发明实施例六中的 种 SRS的发送方法流程图； 图 7为本发明实施例七中的 种用户设备结构示意图；
图 8为本发明实施例八中的 种基站设备结构示意图；
图 9为本发明实施例九中的 种 SRS的发送系统结构示意图。 具体实施方式
本发明实施例提供的技术方案中， 当 CoMP SRS基序列和 CoMP SRS cluster内的某个服务小区的 ID绑定时， 该服务小区内的 UE采 用与 LTE系统相同的 SRS基序列通知方式和通知形式， 而其他服务 小区需要采用与 LTE系统不同的 SRS基序列通知方式和通知形式； 当 CoMP SRS基序列是单独选定的，即不和 CoMP SRS cluster内的任 何服务小区的 ID绑定时， CoMP SRS cluster内的小区均需要采用与 LTE 系统不同的 SRS基序列通知方式和通知形式。 其中， 单独选定 的 CoMP SRS基序列与任何包含在 CoMP SRS cluster内的小区采用的 序列组均不同， 可以任意选择， 并尽量与 CoMP SRS cluster内的小区 采用的序列组保持较低程度的干扰。 本发明实施例中的 SRS基序列 通知方式可以为 RRC信令通知、下行控制信令通知或广播通知， SRS 基序列的通知形式包括通知 CoMP专用 SRS序列的 group ID或基序 列本身，也可以设置 CoMP专用 SRS序列的集合并通知集合中的 SRS 序列的序号。
下面将结合本发明实施例中的附图，对本发明实施例中的技术方 案进行清楚、 完整地描述， 显然， 所描述的实施例是本发明一部分实 施例， 而不是全部的实施例。 基于本发明中的实施例， 本领域普通技 术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属 于本发明保护的范围。
如图 1所示， 为本发明实施例一中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 101 , 用户设备接收来自基站设备的 CoMP专用 SRS序列 信息， 该基站设备与 CoMP SRS cluster内的小区相对应。
其中， CoMP SRS cluster 为进行多点协同传输的小区的集合， CoMP专用 SRS序列信息用于表示 CoMP SRS cluster内的小区对应的 基站设备为该 CoMP SRS cluster选择的 CoMP SRS基序列。 CoMP专 用 SRS 序列信息可以为 CoMP SRS 基序列对应的序列组号 ( sequence-group number )和基序歹1 J号 ( base sequence number ) , 可以 为 CoMP SRS基序列， 也可以为 CoMP SRS基序列在基序列集合中 的编号， 也可以为 CoMP SRS cluster的群标识 group ID, 也可以为 CoMP SRS cluster的 group ID的编号，也可以为 group ID和基序列标 识 sequence ID,还可以为 group ID和 sequence ID的编号。上述 CoMP 专用 SRS序列信息可以与 CoMP SRS cluster内的一个小区的 SRS序 列绑定， 也可以与 CoMP SRS cluster内的所有小区的 SRS序列都没 有绑定关系，以尽量与 CoMP SRS cluster内的小区采用的序列组保持 较低程度的干扰。
此外， CoMP专用 SRS序列信息还包括循环移位值，循环移位值 可以使用和 LTE系统相同或者不同的集合，不同的 CoMP SRS cluster 内根据需要配置不同的循环移位值集合。
具体地， CoMP SRS cluster内的小区可以通过 RRC信令、 下行 控制信令通知或者广播通知的方式将 CoMP专用 SRS序列信息发送 给用户设备。 向 UE发送 CoMP专用 SRS序列信息的小区可以是该 UE的服务小区， 也可以是该 UE的其他小区。
步骤 102,用户设备根据 CoMP专用 SRS序列信息向 CoMP SRS cluster内的小区发送 SRS。
具体地， 用户设备可以根据接收到的 CoMP专用 SRS序列信息， 获取对应 CoMP SRS基序列， 并使用该基序列、 循环移位值和 SRS 配置信息在基站设备调度好的时频资源上进行 SRS的发送， 该 SRS 配置信息包括带宽和周期等信息。
对于后续的 SRS传输， 用户设备可以使用 CoMP专用 SRS序列 信息发送 SRS, 或者重新配置 CoMP专用 SRS序列信息， 或者按照 SRS特有的预定义的跳转方式进行序列跳转。
需要说明的是， 本发明实施例仅以基于 CDM ( Code Division Multiplexing,码分复用）的 SRS传输方式为例描述 SRS的发送方法， 本发明实施例中提供的技术方案还可以适用于其他 SRS传输方式， 包括但不局限于基于 FDM ( Frequency Division Multiplexing, 频分复 用 ) 的 SRS, 基于 FDM/CDM的 SRS等传输方式。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 2所示， 为本发明实施例二中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 201 , 基站设备向 CoMP SRS cluster中的每个小区分配相同 的 CoMP SRS OFDM symbol (符号） 集合和 CoMP SRS序列组。
其中， CoMP SRS序列组与 CoMP SRS cluster中的任何一个小区 的基序列都不同组，或者与 CoMP SRS cluster中的某个小区的基序列 相同。
步骤 202 ,基站设备在时隙 中选择 CoMP SRS基序列， 并通过 高层信令打开 Group-hopping-enabled (组跳转激活） 信令， 选择 sequence-shift pattern (序歹 'J移位图案)。 具体地 , 可以使用以下公式选择 sequence-shift pattern:
/ = mod 30
其中， d CoMP 专用序列移位图案； d CoMP SRS cluster的标识， 即 CoMP SRS cluster的群标识 group ID。
另外， 本步骤选择的 sequence-shift pattern与 PUSCH ( Physical Uplink Shared Channel, 物理上行链路共享信道） 的 sequence-shift pattern, 即 fs = {fs p s UCCH + Δ J mod 30, Δ∞ e {0,1,..., 29}不相同，该 PUSCH 的 sequence-shift pattern可以通过高层配置或者事先约定的计算方式 获得。
步骤 203 , 基站设备通过 RRC信令将 CoMP SRS基序列对应的 序列组号、 基序列号和循环移位值通知 UE。
具体地， 序列组号和基序列号可以分别通过以下公式计算得到：
" = (/ f» I O od30;
USCH
Figure imgf000009_0001
其中， u为序列组号（group number ); /gA ("J为组跳转图案； MP 为 CoMP专用序列移位图案；
V为基序列号 ( base sequence number ); 为伪随机序列； cMt 为初始值； /TSCT为序列移位图案； ΝΠ COMP SRS cluster的标识， 即 CoMP SRS cluster的群标识 group Π
循环移位值可以由高层配置给每个用户，循环移位的取值集合可 以和 LTE 系统相同， 即 {0, 1 , 2, 3 , 4, 5, 6, 7} , 考虑到干扰问 题以及在资源量允许的情况下循环移位值也可以相应地减少， 如 {0, 2, 4, 6} , {1 , 3 , 5, 7}等， 不同的 CoMP SRS cluster内可以根据需 要配置不同的循环移位集合。
基站设备也可以通过下行控制信令通知或者广播通知的方式将 上述信息发送到用户设备。
步骤 204, UE根据接收到的序列组号和基序列号确定 CoMP SRS 基序列， 并使用该基序列、 循环移位值和 SRS 配置信息在基站设备 调度好的时频资源上进行 SRS的发送。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 3所示， 为本发明实施例三中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 301 , 基站设备向 CoMP SRS cluster中的每个小区分配相同 的 CoMP SRS OFDM symbol集合和 CoMP SRS序列组。
其中， CoMP SRS序列组与 CoMP SRS cluster中的任何一个小区 的基序列都不同组，或者与 CoMP SRS cluster中的某个小区的基序列 相同。
步骤 302 , 基站设备在时隙 ns中选择 CoMP SRS基序列。
步骤 303 , 基站设备通过 RRC信令将 CoMP SRS基序列和循环 移位值通知 UE。
其中， 循环移位值可以由高层配置给每个用户， 循环移位的取值 集合可以和 LTE 系统相同， 即 {0 , 1 , 2, 3 , 4, 5 , 6 , 7} , 考虑到 干扰问题以及在资源量允许的情况下循环移位值也可以相应地减少， 如 {0, 2 , 4, 6} , { 1 , 3 , 5 , 7}等， 不同的 CoMP SRS cluster内可以 根据需要配置不同的循环移位集合。
基站设备也可以通过下行控制信令通知或者广播通知的方式将 上述信息发送到用户设备。
步骤 304 , UE根据接收到的 CoMP SRS基序列、 循环移位值和 SRS配置信息在基站设备调度好的时频资源上进行 SRS的发送。
另夕卜，对于后续的 SRS传输， UE可以使用与本次 SRS传输相同 的 SRS基序列， 也可以重新配置 SRS基序列， 或按照 SRS预定义的 跳频方式进行序列跳频。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 4所示， 为本发明实施例四中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 401 , 基站设备向 CoMP SRS cluster中的每个小区分配相同 的 CoMP SRS OFDM symbol集合和 CoMP SRS序列组。
其中， CoMP SRS序列组与 CoMP SRS cluster中的任何一个小区 的基序列都不同组，或者与 CoMP SRS cluster中的某个小区的基序列 相同。
步骤 402 ,基站设备在时隙 ns中选择至少两个 CoMP SRS基序列， 将所有选择的 CoMP SRS基序列作为一个基序列集合，并对基序列集 合中的 CoMP SRS基序列进行编号。
步骤 403 , 基站设备通过 RRC信令将 CoMP SRS基序列在基序 列集合中的编号和循环移位值通知 UE。
其中， 循环移位值可以由高层配置给每个用户， 循环移位的取值 集合可以和 LTE 系统相同， 即 {0 , 1 , 2, 3 , 4, 5 , 6 , 7} , 考虑到 干扰问题以及在资源量允许的情况下循环移位值也可以相应地减少， 如 {0, 2 , 4, 6} , { 1 , 3 , 5 , 7}等， 不同的 CoMP SRS cluster内可以 根据需要配置不同的循环移位集合。
基站设备也可以通过下行控制信令通知或者广播通知的方式将 上述信息发送到用户设备。
步骤 404, UE根据接收到的 CoMP SRS基序列的编号确定 CoMP SRS基序列， 并使用该基序列、 循环移位值和 SRS配置信息在基站 设备调度好的时频资源上进行 SRS的发送。 另夕卜，对于后续的 SRS传输， UE可以使用与本次 SRS传输相同 的 SRS基序列， 也可以重新配置 SRS基序列， 或按照 SRS预定义的 跳频方式进行序列跳频。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 5所示， 为本发明实施例五中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 501 , 基站设备向 CoMP SRS cluster中的每个小区分配相同 的 CoMP SRS OFDM symbol集合和 CoMP SRS序列组。
其中， CoMP SRS序列组与 CoMP SRS cluster中的任何一个小区 的基序列都不同组，或者与 CoMP SRS cluster中的某个小区的基序列 相同。
步骤 502, 基站设备在时隙 中选择 CoMP SRS基序列， 将决定 基序列的可选的 ( group ID )组成一个集合， 并对集合中的每个 group ID进行编号。
步骤 503 , 基站设备通过 RRC信令将 group ID的编号和循环移 位值通知 UE。
同时， 基站设备也可以将时隙 中可选的 Λ¾ΜΡ集合或者集合的 编号通知 UE。
其中， 循环移位值可以由高层配置给每个用户， 循环移位的取值 集合可以和 LTE 系统相同， 即 {0, 1 , 2, 3, 4, 5, 6, 7} , 考虑到 干扰问题以及在资源量允许的情况下循环移位值也可以相应地减少， 如 {0, 2, 4, 6} , {1 , 3 , 5, 7}等， 不同的 CoMP SRS cluster内可以 根据需要配置不同的循环移位集合。
基站设备也可以通过下行控制信令通知或者广播通知的方式将 上述信息发送到用户设备。
步骤 504, UE根据接收到的 group ID的编号获得 CoMP SRS基 序列， 并结合循环移位值和 SRS 配置信息在基站设备调度好的时频 资源上进行 SRS的发送。
另夕卜，对于后续的 SRS传输， UE可以使用与本次 SRS传输相同 的 SRS基序列， 也可以重新配置 SRS基序列， 或按照 SRS预定义的 跳频方式进行序列跳频。
此外，基站设备也可以选择 CoMP SRS基序列，确定决定该基序 列的 group ID,并将 group ID发送给用户设备，用户设备根据该 group ID确定对应的 CoMP SRS基序列， 并使用该基序列、 循环移位值和 SRS配置信息发送 SRS。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 6所示， 为本发明实施例六中的一种 SRS的发送方法流程 图， 包括以下步骤：
步骤 601 , 基站设备向 CoMP SRS cluster中的每个小区分配相同 的 CoMP SRS OFDM symbol集合和 CoMP SRS序列组。
其中， CoMP SRS序列组与 CoMP SRS cluster中的任何一个小区 的基序列都不同组，或者与 CoMP SRS cluster中的某个小区的基序列 相同。
步骤 602, 基站设备在时隙 中选择 CoMP SRS基序列， 确定 N^MP以及 下存在的多个基序列标识， 即 sequence ID。
步骤 603 , 基站设备通过 RRC信令将 group ID、 sequence ID和 循环移位值通知 UE。
其中， 循环移位值可以由高层配置给每个用户， 循环移位的取值 集合可以和 LTE 系统相同， 即 {0, 1 , 2, 3, 4, 5, 6, 7} , 考虑到 干扰问题以及在资源量允许的情况下循环移位值也可以相应地减少， 如 {0, 2, 4, 6} , {1 , 3 , 5, 7}等， 不同的 CoMP SRS cluster内可以 根据需要配置不同的循环移位集合。
基站设备也可以通过下行控制信令通知或者广播通知的方式将 上述信息发送到用户设备。
步骤 604, UE根据接收到的 group ID和 sequence ID确定 CoMP SRS基序列， 并使用该基序列、 循环移位值和 SRS配置信息在基站 设备调度好的时频资源上进行 SRS的发送。
另夕卜，对于后续的 SRS传输， UE可以使用与本次 SRS传输相同 的 SRS基序列， 也可以重新配置 SRS基序列， 或按照 SRS预定义的 跳频方式进行序列跳频。
此外，基站设备也可以选择 CoMP SRS基序列，确定决定该基序 歹1 J的 group ID和 sequence ID的编号, group ID和 sequence ID 的编号发送给用户设备， 用户设备 居该 group ID和 sequence ID的 编号确定对应的 CoMP SRS基序列， 并使用该基序列、循环移位值和 SRS配置信息发送 SRS。
需要说明的是，本发明方法可以根据实际需要对各个步骤顺序进 行调整。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 7所示， 为本发明实施例七中的一种用户设备结构示意图， 包括：
接收模块 710, 用于接收来自基站设备的 CoMP专用 SRS序列 信息， 该基站设备与 CoMP SRS cluster内的小区相对应。 发送模块 720,用于根据接收模块 710接收到的 CoMP专用 SRS 序列信息向 CoMP SRS cluster内的小区发送 SRS。
上述接收模块 710, 具体用于通过以下方式中的任意一种接收 CoMP专用 SRS序列信息：
RRC信令、 下行控制信令通知和广播通知。
上述 CoMP专用 SRS序列信息可以包括循环移位值，以及 CoMP SRS基序列对应的序列组号和基序列号， 上述发送模块 720, 具体用 于根据序列组号和基序列号确定对应的 CoMP SRS基序列，并使用该 基序列、 循环移位值和 SRS配置信息发送 SRS。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS基序列， 上述发送模块 720, 具体用于使用该基序列、 循环移位 值和 SRS配置信息发送 SRS。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS基序列在基序列集合中的编号， 上述发送模块 720, 具体用于根 据 CoMP SRS基序列在基序列集合中的编号确定对应的 CoMP SRS 基序列， 并使用该基序列、 循环移位值和 SRS配置信息发送 SRS。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS cluster的 group ID, 上述发送模块 720,具体用于根据所述 group ID确定对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移 位值和 SRS配置信息发送 SRS。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS cluster的 group ID的编号， 上述发送模块 720, 具体用于根据 group ID的编号获取对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
上述 CoMP 专用 SRS序列信息也可以包括循环移位值， 以及 CoMP SRS cluster的 group ID和 sequence ID, 上述发送模块 720, 具 体用于根据所述 group ID和 sequence ID确定对应的 CoMP SRS基序 列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
上述 CoMP 专用 SRS序列信息也可以包括循环移位值， 以及 CoMP SRS cluster的 group ID和 sequence ID的编号， 上述发送模块 720, 具体用于根据所述 group ID和 sequence ID的编号确定对应的 CoMP SRS基序列，并使用所述基序列、所述循环移位值和 SRS配置 信息发送 SRS。
上述发送模块 720,还用于对于后续的 SRS传输，使用所述 CoMP 专用 SRS序列信息发送 SRS, 或者重新配置 CoMP专用 SRS序列信 息， 或者按照 SRS特有的预定义的跳转方式进行序列跳转。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。
如图 8所示， 为本发明实施例八中的一种基站设备结构示意图， 包括：
获取模块 810,用于获取 CoMP SRS cluster内的小区对应的 CoMP 专用 SRS序列信息。
发送模块 820,用于将获取模块 810获取的 CoMP专用 SRS序列 信息发送到用户设备， 使该用户设备根据 CoMP专用 SRS序列信息 发送 SRS。
上述发送模块 820, 具体用于通过以下方式中的任意一种向用户 设备发送 CoMP专用 SRS序列信息：
RRC信令、 下行控制信令通知和广播通知 。
上述 CoMP专用 SRS序列信息包括循环移位值，以及 CoMP SRS 基序列对应的序列组号和基序列号， 上述获取模块 810, 具体用于选 择 CoMP SRS基序列， 确定决定所述基序列的序列组号和基序列号。
上述 CoMP专用 SRS序列信息包括循环移位值和 CoMP SRS基 序列， 上述获取模块 810, 具体用于选择 CoMP SRS基序列。 上述 CoMP专用 SRS序列信息可以包括循环移位值和 CoMP SRS 基序列在基序列集合中的编号， 上述获取模块 810, 具体用于选择 CoMP SRS基序列，将选择的 CoMP SRS基序列作为一个基序列集合， 并对基序列集合中的 CoMP SRS基序列进行编号。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS cluster的 group ID,上述获取模块 810,具体用于选择 CoMP SRS 基序列， 确定决定基序列的 group ID。
上述 CoMP专用 SRS序列信息也可以包括循环移位值和 CoMP SRS cluster的 group ID的编号， 上述获取模块 810, 具体用于选择 CoMP SRS基序列， 将决定基序列的可选的 group ID组成一个集合， 并对该集合中的每个 group ID进行编号。
上述 CoMP 专用 SRS序列信息也可以包括循环移位值， 以及 CoMP SRS cluster的 group ID和 sequence ID, 上述获耳 莫块 810, 具 体用于选择 CoMP SRS基序列， 确定 group ID和 sequence ID。
上述 CoMP 专用 SRS序列信息也可以包括循环移位值， 以及 CoMP SRS cluster的 group ID和 sequence ID的编号， 上述获取模块 810, 具体用于选择 CoMP SRS基序列， 确定 group ID和 sequence ID 的编号。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。 如图 9所示， 为本发明实施例九中的一种 SRS的发送系统结构 示意图， 包括用户设备 910和基站设备 920, 其中，
用户设备 910,用于接收来自基站设备 920的 CoMP专用 SRS序 列信息，根据接收到的 CoMP专用 SRS序列信息向 CoMP SRS cluster 内的小区发送 SRS,该基站设备 920与 CoMP SRS cluster内的小区相 对应。
基站设备 920,用于获取 CoMP SRS cluster内的小区对应的 CoMP 专用 SRS序列信息， 将获取的 CoMP专用 SRS序列信息发送到用户 设备 910, 使用户设备 910根据 CoMP专用 SRS序列信息发送 SRS。
本发明实施例的技术方案具有以下优点， 因为提供了基于多点协 同传输技术的 SRS基序列的通知方式和序列通知形式，在 CoMP SRS cluster内的小区使用的 CoMP SRS基序列不与小区 ID绑定时为 UE 提供序列信息， 减少了小区间 CoMP SRS资源的干扰， 以及 CoMP 和非 CoMP SRS资源上的 SRS干扰， 保证了信道估计的准确性。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解 到本发明可借助软件加必需的通用硬件平台的方式来实现，当然也可 以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解， 本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以 软件产品的形式体现出来， 该计算机软件产品存储在一个存储介质 中， 包括若干指令用以使得一台终端设备（可以是手机，个人计算机， 服务器， 或者网络设备等）执行本发明各个实施例所述的方法。
以上所述仅是本发明的优选实施方式， 应当指出， 对于本技术领 域的普通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出 若干改进和润饰， 这些改进和润饰也应视本发明的保护范围。 上述本 发明实施例序号仅仅为了描述， 不代表实施例的优劣。
本领域技术人员可以理解实施例中的装置中的模块可以按照实 施例描述进行分布于实施例的装置中，也可以进行相应变化位于不同 于本实施例的一个或多个装置中。 上述实施例的模块可以集成于一 体， 也可以分离部署， 可以合并为一个模块， 也可以进一步拆分成多 个子模块。

Claims

权利要求
1、 一种探测参考信号 SRS的发送方法， 其特征在于， 包括以下 步骤：
用户设备接收来自基站设备的多点协同传输 CoMP专用 SRS序 列信息， 所述基站设备与 CoMP SRS 集合 cluster内的小区相对应； 所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS。
2、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息与所述 CoMP SRS cluster内的一个小区的 SRS序列绑定， 或者与所述 CoMP SRS cluster内的所有小区的 SRS序列都没有绑定 关系。
3、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值，以及 CoMP SRS基序列对应的序列组号和 基序列号；
所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS, 具体为：
所述用户设备根据所述序列组号和所述基序列号确定对应的 CoMP SRS基序列，并使用所述基序列、所述循环移位值和 SRS配置 信息发送 SRS。
4、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值和 CoMP SRS基序列，所述用户设备使用所 述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
5、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值和 CoMP SRS基序列在基序列集合中的编 号；
所述用户设备接收来自基站设备的 CoMP专用 SRS序列信息之 前， 还包括：
所述基站设备选择 CoMP SRS基序列，将所述选择的 CoMP SRS 基序列作为一个基序列集合， 并对所述基序列集合中的 CoMP SRS 基序列进行编号；
所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS, 具体为：
所述用户设备根据 CoMP SRS基序列在基序列集合中的编号确 定对应的 CoMP SRS基序列， 并使用所述基序列、所述循环移位值和 SRS配置信息发送 SRS。
6、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值和 CoMP SRS cluster的群标识 group ID; 所述用户设备接收来自基站设备的 CoMP专用 SRS序列信息之 前， 还包括：
所述基站设备选择 CoMP SRS基序列， 确定决定所述基序列的 group ID;
所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS, 具体为：
所述用户设备根据所述 group ID确定对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
7、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值和 CoMP SRS cluster的 group ID的编号； 所述用户设备接收来自基站设备的 CoMP专用 SRS序列信息之 前， 还包括：
所述基站设备选择 CoMP SRS基序列， 将决定基序列的可选的 group ID组成一个集合， 并对所述集合中的每个 group ID进行编号； 所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS, 具体为：
所述用户设备根据 group ID的编号获取对应的 CoMP SRS基序 列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
8、如权利要求 1所述的方法，其特征在于，所述 CoMP专用 SRS 序列信息包括循环移位值，以及 CoMP SRS cluster的 group ID和基序 歹1 J标识 sequence ID;
所述用户设备接收来自基站设备的 CoMP专用 SRS序列信息之 前， 还包括：
所述基站设备选择 CoMP SRS基序列， 确定所述 group ID 和 sequence ID;
所述用户设备根据所述 CoMP专用 SRS序列信息向所述 CoMP SRS cluster内的小区发送 SRS, 具体为：
所述用户设备 居所述 group ID 和 sequence ID 确定对应的 CoMP SRS基序列，并使用所述基序列、所述循环移位值和 SRS配置 信息发送 SRS。
9、 如权利要求 4或 5所述的方法， 其特征在于， 所述用户设备 根据 CoMP专用 SRS序列信息向 CoMP SRS cluster内的小区发送 SRS 之后， 还包括：
对于后续的 SRS传输， 所述用户设备使用所述 CoMP专用 SRS 序列信息发送 SRS, 或者重新配置 CoMP专用 SRS序列信息， 或者 按照 SRS特有的预定义的跳转方式进行序列跳转。
10、 如权利要求 1至 8中任一项所述的方法， 其特征在于， 所述 用户设备接收来自基站设备的 CoMP专用 SRS序列信息， 具体包括： 所述用户设备通过以下方式中的任意一种接收所述 CoMP 专用 SRS序列信息：
无线资源控制 RRC信令、 下行控制信令通知和广播通知。
11、 如权利要求 2至 8中任一项所述的方法， 其特征在于， 所述 循环移位值使用和 LTE系统相同或者不同的集合，不同的 CoMP SRS cluster内根据需要配置不同的循环移位值集合。
12、 一种用户设备， 其特征在于， 包括：
接收模块， 用于接收来自基站设备的多点协同传输 CoMP 专用 SRS序列信息， 所述基站设备与 CoMP SRS cluster内的小区相对应； 发送模块， 用于根据所述接收模块接收到的 CoMP专用 SRS序 列信息向所述 CoMP SRS cluster内的小区发送 SRS。
13、 如权利要求 12所述用户设备， 其特征在于，
所述接收模块， 具体用于通过以下方式中的任意一种接收所述 CoMP专用 SRS序列信息：
无线资源控制 RRC信令、 下行控制信令通知和广播通知。
14、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值， 以及 CoMP SRS基序列对应的序 列组号和基序列号；
所述发送模块，具体用于根据所述序列组号和所述基序列号确定 对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
15、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS基序列；
所述发送模块， 具体用于使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
16、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS基序列在基序列集合 中的编号；
所述发送模块，具体用于根据所述 CoMP SRS基序列在基序列集 合中的编号确定对应的 CoMP SRS基序列， 并使用所述基序列、所述 循环移位值和 SRS配置信息发送 SRS。
17、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS cluster的 group ID; 所述发送模块， 具体用于根据所述 group ID确定对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息 发送 SRS。
18、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS cluster的 group ID的 编号； 所述发送模块，具体用于根据 group ID的编号获取对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息 发送 SRS。
19、 如权利要求 12所述用户设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值，以及 CoMP SRS cluster的 group ID 和 sequence ID;
所述发送模块， 具体用于根据所述 group ID和 sequence ID确定 对应的 CoMP SRS基序列， 并使用所述基序列、 所述循环移位值和 SRS配置信息发送 SRS。
20、 如权利要求 15或 16所述用户设备， 其特征在于， 所述发送模块， 还用于对于后续的 SRS传输， 使用所述 CoMP 专用 SRS序列信息发送 SRS, 或者重新配置 CoMP专用 SRS序列信 息， 或者按照 SRS特有的预定义的跳转方式进行序列跳转。
21、 一种基站设备， 其特征在于， 包括：
获取模块， 用于获取 CoMP SRS cluster内的小区对应的 CoMP 专用 SRS序列信息；
发送模块， 用于将所述获取模块获取的 CoMP专用 SRS序列信 息发送到用户设备， 使所述用户设备根据所述 CoMP专用 SRS序列 信息发送 SRS。
22、 如权利要求 21所述基站设备， 其特征在于，
所述发送模块，具体用于通过以下方式中的任意一种向所述用户 设备发送所述 CoMP专用 SRS序列信息：
RRC信令、 下行控制信令通知和广播通知。
23、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值， 以及 CoMP SRS基序列对应的序 列组号和基序列号；
所述获取模块，具体用于选择 CoMP SRS基序列，确定决定所述 基序列的序列组号和基序列号。
24、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS基序列；
所述获取模块， 具体用于选择 CoMP SRS基序列。
25、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS基序列在基序列集合 中的编号；
所述获取模块，具体用于选择 CoMP SRS基序列，将所述选择的 CoMP SRS基序列作为一个基序列集合， 并对所述基序列集合中的 CoMP SRS基序列进行编号。
26、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS cluster的 group ID; 所述获取模块，具体用于选择 CoMP SRS基序列，确定决定所述 基序列的 group ID。
27、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值和 CoMP SRS cluster的 group ID的 编号；
所述获取模块，具体用于选择 CoMP SRS基序列，将决定基序列 的可选的 group ID组成一个集合， 并对所述集合中的每个 group ID 进行编号。
28、 如权利要求 21所述基站设备， 其特征在于， 所述 CoMP专 用 SRS序列信息包括循环移位值，以及 CoMP SRS cluster的 group ID 和 sequence ID;
所述获取模块，具体用于选择 CoMP SRS基序列，确定所述 group ID和 sequence ID。
29、 一种 SRS 的发送系统， 包括用户设备和基站设备， 其特征 在于，
所述用户设备， 用于接收来自所述基站设备的 CoMP专用 SRS 序列信息，根据所述接收到的 CoMP专用 SRS序列信息向 CoMP SRS cluster内的小区发送 SRS,所述基站设备与所述 CoMP SRS cluster内 的小区相^应；
所述基站设备，用于获取所述 CoMP SRS cluster内的小区对应的 CoMP专用 SRS序列信息， 将所述获取的 CoMP专用 SRS序列信息 发送到所述用户设备， 使所述用户设备根据所述 CoMP专用 SRS序 列信息发送 SRS。
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