WO2013178095A1 - 探测参考信号的传输方法、装置及系统和用户设备 - Google Patents

探测参考信号的传输方法、装置及系统和用户设备 Download PDF

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Publication number
WO2013178095A1
WO2013178095A1 PCT/CN2013/076613 CN2013076613W WO2013178095A1 WO 2013178095 A1 WO2013178095 A1 WO 2013178095A1 CN 2013076613 W CN2013076613 W CN 2013076613W WO 2013178095 A1 WO2013178095 A1 WO 2013178095A1
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WO
WIPO (PCT)
Prior art keywords
srs
subframe
user equipment
communication
configuration information
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PCT/CN2013/076613
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English (en)
French (fr)
Inventor
吴栓栓
戴博
袁明
梁枫
袁弋非
Original Assignee
中兴通讯股份有限公司
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Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US14/404,630 priority Critical patent/US9509472B2/en
Publication of WO2013178095A1 publication Critical patent/WO2013178095A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—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
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path
    • H04L5/0094—Indication of how sub-channels of the path are allocated

Definitions

  • the present invention relates to the field of wireless communications, and in particular to a method, device, system, and user for transmitting a Sounding Reference Signal (SRS) Device (User Equipment, referred to as UE).
  • SRS Sounding Reference Signal
  • UE User Equipment
  • FIG. 1 is a schematic diagram of a cellular communication system when a UE is located in the same base station cell according to the related art.
  • FIG. 1 when UE1 and UE2 are located in the same cell, although base station 1 and base station 2 are the same site, however, One data transmission still consumes two radio spectrum resources, and the data transmission will still be forwarded through the core network. It can be seen that if the user equipment 1 and the user equipment 2 are located in the same cell and are close to each other, the above-mentioned cellular communication method is obviously not the optimal communication method.
  • D2D device-to-device
  • 2 is a schematic diagram of D2D communication according to the related art. As shown in FIG. 2, this communication mode is different from the communication mode of the conventional cellular system.
  • the D2D communication method not only saves wireless spectrum resources, but also reduces the data transmission pressure of the core network.
  • one of the basis for scheduling is the channel condition. That is, a reference signal (referred to as a pilot, referred to as a pilot) is transmitted on the transceiver end, and channel state information (CSI) between the network node and the user equipment is obtained according to the measurement of the reference signal, and This channel state information is used as a basis for scheduling.
  • CSI channel state information
  • the introduction of D2D communication in cellular systems also involves scheduling problems for traffic transmission. That is, when scheduling D2D communication between UEs, channel state information between UEs needs to be used as a basis for scheduling, and the channel state information is It needs to be obtained by measuring the reference signal.
  • the embodiments of the present invention provide a transmission scheme of a Sounding Reference Signal (SRS) to at least solve the problem of configuration and transmission of reference signals when introducing D2D communication in a cellular communication system in the above related art.
  • SRS Sounding Reference Signal
  • a method for transmitting an SRS including the following steps:
  • the network side node sends an SRS configuration information set to the user equipment, where the SRS configuration information set includes: First configuration information and second configuration information for indicating a second SRS configuration; wherein the first SRS is in a cellular communication uplink transmission, the uplink channel measurement is used in cellular communication, and the second SRS is in a D2D communication chain Road transmission, channel measurement for D2D links for D2D communication.
  • the second SRS is an SRS sent by the user equipment to the peer user equipment during the D2D communication
  • the SRS configuration information set further includes: third configuration information used to indicate the third SRS configuration, where the third SRS is the user equipment in the D2D
  • the SRS transmitted by the peer user equipment detected during communication is used for channel measurement of the D2D link during D2D communication.
  • the first configuration information, the second configuration information, and the third configuration information each include: high layer configuration signaling, and the high layer configuration signaling includes at least one of the following parameters: bandwidth configuration of the sounding reference signal, subframe configuration, and number of transmission ports , transmission bandwidth, frequency hopping bandwidth, frequency domain location, duration, configuration index, transmission comb, sequence cyclic shift, power offset.
  • the user equipment sends the second SRS in the subframe that satisfies the first condition according to the configuration of the second configuration information, and detects the third SRS in the subframe that meets the second condition according to the configuration of the third configuration information, where
  • the subframe of the first condition and the subframe satisfying the second condition include one of the following: the subframe that satisfies the first condition is a transmission subframe of the user equipment in D2D communication, and the subframe that satisfies the second condition is the user equipment in the D2D a receiving subframe that is in communication; a subframe that satisfies the first condition is a subframe of a cell-specific SRS, and is a transmitting subframe when the user equipment is in D2D communication, and a subframe that satisfies the second condition is a subframe of the cell-specific SRS, And a receiving subframe when the user equipment is in D2D communication; the subframe that satisfies the first condition is a subframe of the cell-
  • the subframe is a sub-frame of the cell-specific SRS, and is a subframe of the SRS indicated by the third configuration information, and is a receiving subframe of the user equipment during D2D communication.
  • the user equipment sends the second SRS in the subframe that satisfies the first condition according to the configuration of the second configuration information, where the subframe that satisfies the first condition includes one of the following: a sending subframe of the user equipment in D2D communication ; a subframe of the cell-specific SRS, and is a transmission subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and is a subframe of the SRS indicated by the second configuration information, and is a transmission of the user equipment during D2D communication a sub-frame of the SRS indicated by the second configuration information, and is a transmission subframe of the user equipment in D2D communication; a subframe of the SRS indicated by the second configuration information; a subframe of the cell-specific SRS, and
  • the user equipment detects the third SRS in the subframe that satisfies the second condition according to the configuration of the third configuration information, where the subframe that satisfies the second condition includes one of the following: the receiving subframe of the user equipment in D2D communication a subframe of the cell-specific SRS, and is a receiving subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and is a subframe of the SRS indicated by the third configuration information, and is a user equipment in D2D communication.
  • the second configuration information includes a first trigger signaling for triggering the user equipment to send the second SRS
  • the third configuration information includes a second trigger signaling for triggering the user equipment to detect the third SRS
  • the network side node After the SRS configuration information set is sent to the user equipment, the method further includes: when receiving the first trigger signaling, the user equipment sends the second SRS in the first subframe that meets the first condition that meets the first preset interval.
  • the user equipment detects the third SRS in the first subframe that meets the second condition that meets the second preset interval, where the first preset interval is the first trigger signaling.
  • the minimum time interval between the receiving subframe and the transmitting subframe of the second SRS, and the second preset interval is the minimum time interval between the receiving subframe of the second trigger signaling and the receiving subframe of the third SRS.
  • the first SRS is further used for the user equipment to send to the opposite user equipment during D2D communication, and is used for performing channel measurement of the D2D link by the peer user equipment; and the second SRS is sent by the opposite user equipment during D2D communication. It is used for channel measurement of the D2D link by the user equipment during D2D communication.
  • the user equipment sends the first SRS in the subframe that satisfies the first condition according to the configuration of the first configuration information, and detects the second SRS in the subframe that meets the second condition according to the configuration of the second configuration information, where
  • the subframe of the first condition is a subframe of the SRS indicated by the first configuration information
  • the subframe that satisfies the second condition is a subframe of the SRS indicated by the second configuration information
  • the subframe that satisfies the first condition satisfies the second condition
  • the subframes are all cell-specific SRS subframes.
  • the first configuration information includes a first trigger signaling for triggering the user equipment to send the first SRS
  • the second configuration information includes second trigger signaling for triggering the user equipment to detect the second SRS
  • the method further includes: the user equipment receiving the first trigger signaling Transmitting the first SRS in the first subframe that meets the first condition that meets the first preset interval.
  • the user equipment receives the second trigger signaling, the first one meets the satisfaction of the second preset interval.
  • the second SRS is detected in the subframe of the second condition, where the first preset interval is a minimum time interval between the receiving subframe of the first trigger signaling and the transmitting subframe of the first SRS, and the second preset interval is the second The minimum time interval between the received subframe of the trigger signaling and the received subframe of the second SRS.
  • the first configuration information includes a power offset parameter, where the power offset parameter includes a first power offset and a second power offset, where the first power offset is used to determine that the user equipment is in the cellular communication system
  • the medium uplink transmits the power of the first SRS
  • the second power offset is used to determine the power of the user equipment to send the first SRS on the D2D communication link
  • the method further The method includes: if the subframe in which the first SRS is sent is a D2D communication sending subframe of the user equipment, the user equipment sends the first SRS by using the second power offset, otherwise, the user equipment sends the first SRS by using the first power offset.
  • the second SRS is an SRS sent by the user equipment to the peer user equipment during the D2D communication, a channel measurement for the D2D communication of the peer user equipment, and a peer user equipment detected by the user equipment during the D2D communication.
  • SRS used for channel measurement of user equipment for D2D communication.
  • the first configuration information and/or the second configuration information includes: high layer configuration signaling, and the high layer configuration signaling includes at least one of the following parameters: a bandwidth configuration of the sounding reference signal, a subframe configuration, a number of transmission ports, a transmission bandwidth, Frequency hopping bandwidth, frequency domain position, duration, configuration index, transmission comb, sequence cyclic shift, power offset.
  • the user equipment sends the second SRS in the subframe that satisfies the first condition according to the configuration of the second configuration information, and detects the second SRS in the subframe that meets the second condition according to the configuration of the second configuration information, where
  • the subframe of the first condition and the subframe satisfying the second condition include one of the following: the subframe that satisfies the first condition is a transmission subframe of the user equipment in D2D communication, and the subframe that satisfies the second condition is the user equipment in the D2D a receiving subframe that is in communication; a subframe that satisfies the first condition is a subframe of a cell-specific SRS, and is a transmitting subframe when the user equipment is in D2D communication, and a subframe that satisfies the second condition is a subframe of the cell-specific SRS, And a receiving subframe when the user equipment is in D2D communication; the subframe that satisfies the first condition is a subframe of the cell-
  • the subframe is a subframe in which the second condition is a subframe of the cell-specific SRS, and is a subframe of the SRS indicated by the second configuration information, and is a received subframe when the user equipment is in D2D communication.
  • the user equipment sends the second SRS in the subframe that satisfies the first condition according to the configuration of the second configuration information, where the subframe that satisfies the first condition includes one of the following: a sending subframe of the user equipment in D2D communication a subframe of the cell-specific SRS, and is a transmission subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and is a subframe of the SRS indicated by the second configuration information, and is a user equipment in D2D communication.
  • the user equipment detects the second SRS in the subframe that satisfies the second condition according to the configuration of the second configuration information, where the subframe that satisfies the second condition includes one of the following: a receiving subframe of the user equipment in D2D communication a subframe of the cell-specific SRS, and is a receiving subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and is a subframe of the SRS indicated by the second configuration information, and is a user equipment in D2D communication.
  • the second configuration information includes a first trigger signaling for triggering the user equipment to send the second SRS, and a second trigger signaling for triggering the user equipment to detect the second SRS, where the network side node sends the SRS configuration to the user equipment.
  • the method further includes: when receiving the first trigger signaling, the user equipment sends the second SRS in the first subframe that meets the first condition that meets the first preset interval; the user equipment receives the In the second triggering signaling, the second SRS is detected in the first subframe that meets the second condition that meets the second preset interval.
  • the first preset interval is the receiving subframe and the first trigger signaling.
  • the minimum time interval of the transmission subframe of the second SRS, and the second preset interval is the minimum time interval between the reception subframe of the second trigger signaling and the reception subframe of the second SRS.
  • the method further includes: the user equipment sends the first SRS to the network side node according to the first configuration information, for the channel measurement of the uplink in the cellular system, Or sending, according to the first configuration information, the first SRS to the peer user equipment for channel measurement of the D2D link during the D2D communication; and/or, the user equipment to the peer user equipment during the D2D communication according to the second configuration information. Sending a second SRS or detecting a second SRS from the peer user equipment for the channel of the D2D link
  • a method for transmitting an SRS including the following steps:
  • the user equipment receives an SRS configuration information set for indicating an SRS configuration from a network side node, where the SRS configuration information set includes: First configuration information indicating a first SRS configuration and second configuration information indicating a second SRS configuration; wherein the first SRS is in a cellular communication uplink transmission, and the uplink channel measurement is used in cellular communication
  • the second SRS is transmitted on the D2D communication link, and the channel measurement of the D2D link is used for D2D communication.
  • the second SRS is the SRS sent by the user equipment to the peer user equipment during the D2D communication
  • the SRS configuration information set further includes: third configuration information used to indicate the third SRS configuration
  • the third SRS is the user equipment in the D2D. SRS sent by the peer user equipment detected during communication, channel measurement of the D2D link used for D2D communication
  • the first SRS is further used for the user equipment to send to the opposite user equipment during D2D communication, and is used for performing channel measurement of the D2D link by the peer user equipment; and the second SRS is sent by the opposite user equipment during D2D communication. It is used for channel measurement of the D2D link by the user equipment during D2D communication.
  • the second SRS is an SRS sent by the user equipment to the peer user equipment during the D2D communication, a channel measurement for the D2D communication of the peer user equipment, and a peer user equipment detected by the user equipment during the D2D communication. SRS, used for channel measurement of user equipment for D2D communication.
  • the method further includes: the user equipment sends the first SRS to the network side node according to the first configuration information, where the user equipment is used in the cellular system.
  • the user equipment sends the first SRS to the network side node according to the first configuration information, where the user equipment is used in the cellular system.
  • the second SRS is sent to the peer user equipment or the second SRS from the peer user equipment is detected for channel measurement of the D2D link.
  • a SRS transmission device configured to send an SRS configuration information set to the user equipment, where the SRS configuration information set includes: First configuration information indicating a first SRS configuration and second configuration information indicating a second SRS configuration; wherein the first SRS is in a cellular communication uplink transmission, and the uplink channel measurement is used in cellular communication, The two SRSs are transmitted on the D2D communication link, and the channel measurement of the D2D link is used for D2D communication.
  • a user equipment including: a receiving module, configured to receive, by a network side node, an SRS configuration information set for indicating a sounding reference signal SRS configuration, where the SRS configuration information set And including: first configuration information indicating a first SRS configuration and second configuration information indicating a second SRS configuration; wherein, the first SRS is in a cellular communication uplink transmission, and is used in cellular communication Channel measurement, the second SRS is transmitted on the D2D communication link, and the channel measurement of the D2D link is used for D2D communication.
  • the user equipment further includes: a first configuration information module, configured to send, according to the first configuration information, the first SRS to the network side node, for the channel measurement of the uplink in the cellular system, or according to the first configuration information Sending a first SRS to the peer user equipment for channel measurement of the D2D link during D2D communication; and/or, a second configuration information module, for using the second configuration information to the peer user equipment during D2D communication according to the second configuration information Sending a second SRS or detecting a second SRS from the peer user equipment for channel measurement of the D2D link.
  • a transmission system for an SRS is provided, including: the foregoing SRS transmission device and the foregoing user equipment.
  • the method for transmitting the SRS configuration information set to the user equipment by the network side node is adopted, which solves the problem of configuration and transmission of the reference signal when the D2D communication is introduced in the cellular communication system in the related art, thereby solving the D2D problem.
  • the problem of channel measurement during communication provides a basis for the scheduling of D2D communication, and achieves compatibility between D2D communication and cellular communication, thereby avoiding a significant increase in the complexity of user equipment design and implementation.
  • FIG. 1 is a schematic diagram of a cellular communication system when a UE is located in the same base station cell according to the related art
  • FIG. 2 is a schematic diagram of D2D communication according to the related art
  • FIG. 3 is a transmission apparatus of an SRS according to an embodiment of the present invention.
  • 4 is a structural block diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 5 is a structural block diagram of a user equipment according to a preferred embodiment of the present invention
  • FIG. 6 is a structure of a transmission system of an SRS according to an embodiment of the present invention
  • FIG. 7 is a schematic structural diagram of a radio frame of an LTE/LTE-A system according to Embodiment 2 of the present invention
  • FIG. 8 is a schematic structural diagram of a physical resource of an LTE/LTE-A system according to Embodiment 2 of the present invention
  • FIG. 10 is a schematic diagram of a subframe in which a UE determines to transmit a D2D sounding reference signal according to Example 1 of the present invention
  • FIG. 10 is a schematic diagram of a subframe in which a UE determines to transmit a D2D sounding reference signal according to Example 1 of the present invention
  • FIG. 11 is a diagram of a UE determining a transmission D2D sounding reference according to Example 1 of the present invention
  • FIG. 12 is a schematic diagram 3 of a subframe position of a UE for transmitting a D2D sounding reference signal according to Example 1 of the present invention
  • FIG. 13 is a diagram according to the present invention
  • FIG. 14 is a UE 2 is determined in accordance with the present invention, a schematic example of the reference position signal of the subframe is transmitted D2D probe;
  • FIG. 12 is a schematic diagram 3 of a subframe position of a UE for transmitting a D2D sounding reference signal according to Example 1 of the present invention
  • FIG. 13 is a diagram according to the present invention
  • FIG. 14 is a UE 2 is determined in accordance with the present invention, a schematic example of the reference position signal of the subframe is transmitted D2D probe;
  • FIG. 14 is a UE 2
  • FIG. 15 is a schematic diagram of the D2D communication Example 3 according to the present invention
  • 16 is a first schematic diagram of determining a subframe position at which a UE transmits a D2D sounding reference signal according to Example 3 of the present invention
  • FIG. 17 is a second schematic diagram of a subframe position at which the UE determines to transmit a D2D sounding reference signal according to Example 3 of the present invention
  • FIG. 19 is a fourth diagram of a subframe position in which the UE determines to transmit a D2D sounding reference signal according to Example 3 of the present invention.
  • the method includes the following steps:
  • the network side node sends an SRS configuration information set to the user equipment, where the SRS configuration information set includes: a configuration information and second configuration information for indicating a second SRS configuration; wherein the first SRS is in a cellular communication uplink transmission, the uplink channel measurement is used in cellular communication, and the second SRS is in a D2D communication link Transmission, channel measurement for D2D links for D2D communication.
  • another SRS transmission method including the following steps:
  • the user equipment receives an SRS configuration information set from a network side node for indicating an SRS configuration, where the SRS configuration information set includes: First configuration information indicating a first SRS configuration and second configuration information indicating a second SRS configuration; wherein, the first SRS is in a cellular communication uplink transmission, and the uplink channel measurement is used in cellular communication,
  • the two SRSs are transmitted on the D2D communication link, and the channel measurement of the D2D link is used for D2D communication.
  • the method that the network side node sends the SRS configuration information set to the user equipment is used to solve the problem that the reference signal is configured and transmitted when the D2D communication is introduced in the cellular system in the related art, thereby solving the channel measurement in the D2D communication.
  • the problem is to provide a basis for the scheduling of D2D communication, and to achieve compatibility between D2D communication and cellular communication, avoiding a significant increase in the complexity of user equipment design and implementation.
  • the channel measurement in the D2D communication refers to the measurement of the channel state information of the D2D link or the synchronization of the D2D link, where the channel state information includes, but is not limited to, channel quality information, precoding matrix indication, rank.
  • the scheme (1) where the second SRS is the SRS sent by the user equipment to the peer user equipment during the D2D communication, and is used by the peer user equipment to perform the D2D link during the D2D communication.
  • the channel measurement, the SRS configuration information set further includes: third configuration information for indicating a third SRS configuration, where the third SRS is an SRS sent by the peer user equipment detected by the user equipment during the D2D communication, where the user equipment is used by the user equipment Channel measurement of the D2D link is performed during D2D communication.
  • the first SRS is further used to send the user equipment to the peer user equipment during the D2D communication, and the channel measurement of the D2D link is performed by the peer user equipment; and the second SRS is used by the peer user equipment in the D2D communication. Transmit, used for user equipment to perform channel measurement of the D2D link during D2D communication.
  • the second SRS is the SRS sent by the user equipment to the peer user equipment during the D2D communication, and the SRS sent by the peer user equipment detected by the user equipment during the D2D communication, respectively, for the peer user equipment and the user.
  • the device performs channel measurement of the D2D link during D2D communication.
  • the user equipment sends the first SRS to the network side node according to the first configuration information, for the uplink channel measurement in the cellular system, or according to the first
  • the configuration information is sent to the peer user equipment to transmit the first SRS for the channel measurement of the D2D link during the D2D communication; and/or, the user equipment sends the second SRS to the peer user equipment during the D2D communication according to the second configuration information. Or detecting a second SRS from the peer user equipment for channel measurement of the D2D link.
  • an embodiment of the present invention provides an SRS transmission apparatus.
  • the transmission apparatus 30 includes: a sending module 32, configured to send an SRS configuration information set to a user equipment, where The SRS configuration information set includes: first configuration information indicating a first SRS configuration and second configuration information indicating a second SRS configuration; wherein the first SRS is in a cellular communication uplink transmission, and is used for cellular communication
  • the second SRS is transmitted on the D2D communication link, and the channel measurement of the D2D link is used for D2D communication.
  • the transmission device 30 further includes: a configuration module 34 coupled to the sending module 32, configured to configure an SRS parameter of the user equipment and generate the foregoing SRS configuration information set.
  • the configuration module 34 After the configuration module 34 generates the SRS configuration information set, the sending module 3 sends the SRS configuration information set to the user equipment.
  • the embodiment of the invention provides a user equipment.
  • FIG. 4 is a structural block diagram of a user equipment according to an embodiment of the present invention. As shown in FIG.
  • the user equipment 40 includes: a receiving module 42 configured to receive an SRS configuration information set from a network side node for indicating an SRS configuration,
  • the SRS configuration information set includes: first configuration information used to indicate the first SRS configuration and used to indicate the second SRS configuration.
  • Second configuration information wherein, the first SRS is transmitted in a cellular communication uplink, the channel measurement of the uplink is used for cellular communication, the second SRS is transmitted on the D2D communication link, and the channel of the D2D link is used for D2D communication Measurement
  • FIG. 5 is a structural block diagram of a user equipment according to a preferred embodiment of the present invention.
  • the user equipment 40 further includes: a first configuration information module 52, configured to send a first to a network side node according to the first configuration information.
  • SRS for channel measurement of uplink in a cellular system, or transmitting a first SRS to a peer user equipment for D2D communication channel measurement according to the first configuration information; and/or,
  • the second configuration information module 54 is configured to send a second SRS to the peer user equipment or detect a second SRS from the peer user equipment during the D2D communication according to the second configuration information, for channel measurement of the D2D link.
  • a transmission system of an SRS is also provided.
  • Figure 6 is a diagram of an embodiment of the present invention
  • a block diagram of a transmission system of the SRS includes: the SRS transmission device 30 for D2D communication and the D2D communication user equipment 40.
  • the network side node is used to send the SRS configuration information set to the user equipment, which solves the problem of configuration and transmission of the reference signal when introducing D2D communication in the cellular system in the related art, and realizes compatibility between D2D communication and cellular communication. , improve the performance of the system.
  • the embodiment provides a method for transmitting a reference signal to solve the problem of configuration and transmission of reference signals in a cellular communication system supporting D2D communication.
  • a method for configuring a reference signal including: sending a configuration information set of the sounding reference signal to the user equipment; wherein, the configuration information set includes at least first configuration information and second configuration information; a configuration of the sounding reference signal, the second configuration information indicating a configuration of the second sounding reference signal; the first sounding reference signal is a sounding reference signal of the cellular communication uplink, and is used for an uplink channel of the user equipment when performing cellular communication.
  • the second sounding reference signal is a sounding reference signal for device-to-device communication, and is used for channel measurement of the device-to-device link when the user equipment performs device-to-device communication.
  • the foregoing configuration method may further include: the configuration information set further includes third configuration information, where the third configuration information indicates a configuration of the third sounding reference signal; wherein the first sounding reference signal is sent by the user equipment, The network side device performs channel measurement on the cellular communication uplink; the second sounding reference signal is sent by the user equipment, and the peer user equipment used for D2D communication performs channel measurement on the device-to-device link; The measurement reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and is used for channel measurement of the D2D link when the user equipment performs D2D communication.
  • the foregoing configuration method may further include: the first sounding reference signal is sent by the user equipment, and is used by the network side device to perform channel measurement of the cellular communication uplink and/or perform device-to-device communication with the user equipment.
  • the peer user equipment performs channel measurement of the device-to-device communication link;
  • the second sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and is used for user equipment to perform channel measurement of the device-to-device communication link.
  • the foregoing configuration method may further include: the first sounding reference signal is sent by the user equipment, and is used by the network side device to perform channel measurement of the cellular communication uplink; the second sounding reference signal is sent by the user equipment, Performing channel measurement of the device-to-device communication link on the peer-to-peer device that performs device-to-device communication with the user equipment; and/or, the second sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, Channel measurement for user equipment for device-to-device communication links.
  • the first and/or second and/or third configuration information may include high layer configuration signaling, and the high layer configuration signaling includes at least one of the following parameters: bandwidth configuration of the sounding reference signal, subframe configuration, number of transmission ports , transmission bandwidth, frequency hopping bandwidth, frequency domain location, duration, configuration index, transmission comb, sequence cyclic shift, power offset.
  • the method further includes: the user equipment sends the second sounding reference signal in the subframe that meets the first condition according to the configuration of the second configuration information, and the child that meets the second condition according to the configuration of the third configuration information
  • the third sounding reference signal is detected in the frame; wherein the subframe that satisfies the first condition and the subframe that satisfies the second condition include one of the following manners: Mode 1: The subframe that satisfies the first condition is device-to-device communication of the user equipment.
  • the subframe that satisfies the second condition is a device-to-device communication receiving subframe of the user equipment;
  • mode 2 the subframe that satisfies the first condition is a cell-specific sounding reference signal subframe, and is a device-to-device of the user equipment a communication transmission subframe;
  • the subframe that satisfies the second condition is a cell-specific sounding reference signal subframe, and is a device-to-device communication reception subframe of the user equipment;
  • the third subframe that satisfies the first condition is a cell-specific sounding reference signal.
  • a subframe and is a sounding reference signal subframe indicated by the second configuration information, and is device-to-device communication of the user equipment SongZi frame
  • second sub-frame satisfies the condition is a cell-specific SRS sub-frame, and a sounding reference signal configuration information indicates the third sub-frame, and a user equipment device to a receiving communication device the subframe
  • the fourth subframe that satisfies the first condition is a sounding reference signal subframe indicated by the second configuration information, and is a device-to-device communication transmission subframe of the user equipment
  • the subframe that satisfies the second condition is indicated by the third configuration information.
  • the subframe satisfying the first condition is a sounding reference signal subframe indicated by the second configuration information
  • the subframe satisfying the second condition is a sounding reference signal sub-frame indicated by the third configuration information
  • mode 6 the subframe that satisfies the first condition is a cell-specific sounding reference signal subframe, and is a sounding reference signal subframe indicated by the second configuration information
  • the subframe is a cell-specific sounding reference signal subframe, and is a sounding reference signal subframe indicated by the third configuration information.
  • the second configuration information may further include trigger signaling.
  • the third configuration information further includes triggering signaling, when the triggering signaling triggers the user equipment to detect the third sounding reference signal, the user equipment meets the preset interval and the second The third sounding reference signal is detected in the conditional subframe; the preset interval is a minimum time interval between the triggering signaling subframe and the sounding reference signal receiving or transmitting the subframe.
  • the method further includes: the user equipment sends the first sounding reference signal in a subframe that satisfies the first condition according to the configuration of the first configuration information, and the child that meets the second condition according to the configuration of the second configuration information Detecting a second sounding reference signal in the frame; the subframe that satisfies the first condition and the subframe that satisfies the second condition include: the subframe that satisfies the first condition is a cell-specific sounding reference signal subframe, and is indicated by the first configuration information The sounding reference signal subframe; the subframe satisfying the second condition is a cell-specific sounding reference signal subframe, and is a sounding reference signal subframe indicated by the second configuration information.
  • the first configuration information may further include trigger signaling.
  • the trigger signaling triggers the user equipment to send the first sounding reference signal
  • the user equipment meets the preset interval and satisfies the first The first sounding reference signal is sent in the conditional sub-frame
  • the second configuration information further includes trigger signaling.
  • the triggering signaling triggers the user equipment to detect the second sounding reference signal
  • the user equipment meets the preset interval and the second The second sounding reference signal is detected in the conditional subframe
  • the preset interval is a minimum time interval between the trigger signaling receiving subframe and the sounding reference signal receiving or transmitting the subframe.
  • the power offset included in the first configuration information may include a first power offset and a second power offset; the first power offset is used to determine that the user equipment is in cellular communication
  • the uplink transmits the power of the first sounding reference signal
  • the second power offset is used to determine the power of the user equipment to transmit the first sounding reference signal on the device-to-device communication link; when the subframe in which the first sounding reference signal is transmitted is User equipment
  • the user equipment sends the first sounding reference signal with the second power offset, otherwise the user equipment sends the first sounding reference signal with the first power offset.
  • the method further includes: the user equipment sends the second sounding reference signal in the subframe that meets the first condition according to the configuration of the second configuration information, and the child that meets the second condition according to the configuration of the second configuration information
  • the second sounding reference signal is detected in the frame;
  • the subframe that satisfies the first condition and the subframe that satisfies the second condition include one of the following manners: Mode 1:
  • the subframe that satisfies the first condition is a device-to-device communication transmitter of the user equipment.
  • the subframe that satisfies the second condition is a device-to-device communication receiving subframe of the user equipment; and the second subframe that satisfies the first condition is a cell-specific sounding reference signal subframe, and is a device-to-device communication transmission of the user equipment.
  • a subframe that satisfies the second condition is a cell-specific sounding reference signal subframe, and is a device-to-device communication receiving subframe of the user equipment; and a third subframe that satisfies the first condition is a cell-specific sounding reference signal subframe.
  • a sounding reference signal subframe indicated by the second configuration information and is a device-to-device communication transmitting subframe of the user equipment
  • the subframe that satisfies the second condition is a cell-specific sounding reference signal subframe, and is a sounding reference signal subframe indicated by the second configuration information, and is a device-to-device communication receiving subframe of the user equipment.
  • the method further includes: the user equipment sends the second SRS in the subframe that meets the first condition according to the configuration of the second configuration information, where the subframe that satisfies the first condition includes one of the following: a transmission subframe of the device in D2D communication; a subframe of the cell-specific SRS, and a transmission subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and a subframe of the SRS indicated by the second configuration information, And is a transmission subframe when the user equipment communicates in D2D.
  • the method further includes: the user equipment detects the second SRS in the subframe that meets the second condition according to the configuration of the second configuration information, where the subframe that satisfies the second condition includes one of the following: a receiving subframe of the device in the D2D communication; a subframe of the cell-specific SRS, and a receiving subframe of the user equipment in D2D communication; a subframe of the cell-specific SRS, and a subframe of the SRS indicated by the second configuration information, And it is a receiving subframe when the user equipment is in D2D communication.
  • the second configuration information may further include trigger signaling.
  • the trigger signaling triggers the user equipment to send the second sounding reference signal
  • the user equipment meets the preset interval and satisfies the first
  • the second probe reference signal is sent in the conditional subframe
  • the second configuration information further includes trigger signaling, and when the trigger signaling triggers the user equipment to detect the second sounding reference signal, the user equipment meets the preset interval and the second Condition
  • the second sounding reference signal is detected in the subframe;
  • the preset interval is a minimum time interval between the trigger signaling receiving subframe and the sounding reference signal receiving or transmitting the subframe.
  • the configuration information set includes at least first configuration information and second configuration information; and the first configuration information indicates the first sounding reference a configuration of the signal, where the second configuration information indicates a configuration of the second sounding reference signal;
  • the first sounding reference signal is a sounding reference signal of the cellular communication uplink, and is used for uplink channel measurement of the user equipment when performing cellular communication;
  • the second sounding reference signal is a sounding reference signal for device-to-device communication, and is used for a device-to-device link channel when the user equipment performs device-to-device communication.
  • the configuration information set may further include third configuration information, where the third configuration information indicates a configuration of the third sounding reference signal; the user equipment sends the first sounding reference signal, and the first sounding reference signal is used by the network side device.
  • the user equipment Performing channel measurement of the cellular communication uplink; the user equipment receives the second sounding reference signal, and the second sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and is used for the user equipment to perform the equipment-to-device communication chain.
  • Channel measurement of the channel the user equipment sends a third sounding reference signal, and the third sounding reference signal is used for the device-to-device communication link of the peer user equipment that performs device-to-device communication with the user equipment.
  • the user equipment may send the first sounding reference signal, where the first sounding reference signal is used by the network side device for channel measurement of the cellular communication uplink and/or device-to-device communication with the user equipment.
  • the peer user equipment performs channel measurement of the device-to-device communication link; the user equipment receives the second sounding reference signal, and the second sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and is used for the user equipment. Perform channel measurements of device-to-device communication links.
  • the user equipment may send the first sounding reference signal, where the first sounding reference signal is used by the network side device to perform channel measurement of the cellular communication uplink; the user equipment sends the second sounding reference signal, The second sounding reference signal is used to perform channel measurement of the device-to-device communication link with the peer user equipment that performs device-to-device communication with the user equipment; and/or, the user equipment receives the second sounding reference signal, and the second sounding reference signal is The user equipment performs device-to-device communication and is sent by the peer user equipment, and is used by the user equipment to perform channel measurement of the device-to-device communication link.
  • Embodiment 1 Due to the time-varying and unpredictable nature of the wireless channel, the channel state is also in a time-varying state. Therefore, adaptive modulation and modulation (AMC) real-time data transmission rate and modulation (some systems called modulation and coding, Modulation and Coding Scheme, referred to as MCS) adjustment, can Significantly improve the spectral efficiency of wireless communication systems.
  • AMC adaptive modulation and modulation
  • MCS Modulation and Coding Scheme
  • CSI a basis for transmission MCS adjustment
  • the channel state information usually needs to be obtained by measuring a reference signal (Reference Signal, RS, also called pilot, pilot). Similar problems are encountered when introducing D2D communication in a cellular communication system.
  • RS Reference Signal
  • the present embodiment provides a device-to-device (D2D) communication method, including: transmitting a configuration information set of a sounding reference signal to a user equipment, where the configuration information set includes at least first configuration information and second configuration information.
  • the first configuration information indicates a configuration of the first sounding reference signal
  • the second configuration information indicates a configuration of the second sounding reference signal
  • the first sounding reference signal is a sounding reference signal of the cellular communication uplink, and is used for the user equipment.
  • the second sounding reference signal is a sounding reference signal for device-to-device communication, and is used for channel measurement of the device-to-device link when the user equipment performs device-to-device communication
  • Both the first sounding reference signal and the second sounding reference signal are transmitted in an uplink subframe.
  • the sounding reference signal configuration information indicated to the UE is at least two groups, wherein a set of configuration information, that is, the first configuration information is used to indicate an uplink sounding reference signal configuration when the cellular communication is used, and the sounding reference is used.
  • the signal is used for uplink measurement of the user equipment when performing cellular communication; another set of configuration information, that is, the second configuration information is used to indicate a sounding reference signal configuration when the device is in communication with the device, and the sounding reference signal is used for the user Device-to-device link measurement when the device is communicating from device to device.
  • the first configuration information set includes a third configuration information, which is used to indicate the configuration of the third sounding reference signal.
  • the first sounding reference signal is sent by the user equipment, and is used for uplink channel measurement when the network side device performs cellular communication;
  • the second sounding reference signal is sent by the user equipment, and is used for device-to-device communication with the user equipment.
  • the end user equipment performs channel measurement of the device-to-device communication link;
  • the third reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and is used by the user equipment to perform channel measurement of the device-to-device communication link.
  • the first sounding reference signal is sent by the user equipment, and the network side device performs channel measurement of the cellular communication uplink and/or the peer user equipment that performs device-to-device communication with the user equipment performs a device-to-device communication link.
  • Channel measurement the second sounding reference signal is peer-to-peer communication with the user equipment
  • the user equipment sends a channel measurement for the user equipment to perform a device-to-device communication link. That is, the device-to-device communication sounding reference signal transmitted by the user equipment has the same configuration as the sounding reference signal of the cellular communication uplink transmitted by the user equipment.
  • the first sounding reference signal is sent by the user equipment, and is used by the network side device to perform channel measurement of the cellular uplink;
  • the second sounding reference signal is sent by the user equipment, and is used for device-to-device communication with the user equipment. End user equipment performs channel measurement of the device-to-device communication link; and/or, the second sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and the user equipment performs device-to-device communication Channel measurement of the link.
  • the user equipment performing the D2D communication has the same D2D communication sounding reference signal configuration, and the transmission of the sounding reference signals of the UEs at both ends of the D2D communication can be multiplexed in a time division manner, for example, the user equipment and the opposite user equipment are only in themselves.
  • the device-to-device communication sounding reference signal that is, the second reference signal, is transmitted in the D2D transmission subframe.
  • the LTE/LTE-A system downlink is based on Orthogonal Frequency Division Multiplexing (OFDM) technology, and the uplink uses single carrier frequency division multiplexing to access SC-FDMA (Single carrier- Frequency Division Multiplexing Access) Multiple access method.
  • OFDM Orthogonal Frequency Division Multiplexing
  • SC-FDMA Single carrier- Frequency Division Multiplexing Access
  • communication resources are in the form of time-frequency two-dimensional.
  • uplink and downlink communication resources are divided in units of frames in the time direction.
  • 7 is a schematic structural diagram of a radio frame of an LTE/LTE-A system according to Embodiment 2 of the present invention. As shown in FIG. 7, each radio frame has a length of 10 ms and includes 10 sub-lengths of 1 ms.
  • 8 is a schematic structural diagram of physical resources of an LTE/LTE-A system according to Embodiment 2 of the present invention. As shown in FIG. 8, in a frequency direction, resources are divided into subcarriers, specifically in communication, in a frequency domain. The smallest unit of resource allocation is a resource block (Resource Block, RB for short), and one physical resource block (Physical RB, referred to as PRB) corresponding to a physical resource.
  • a PRB contains 12 subcarriers in the frequency domain, corresponding to one time slot in the time domain.
  • a resource corresponding to one subcarrier on each OFDM symbol is called a Resource Element (RE).
  • RE Resource Element
  • the measurement of the downlink is mainly based on a cell-specific reference signal (also referred to as a CRS) and a channel state information reference signal (Channel State Information).
  • a CRS cell-specific reference signal
  • CSI-RS channel state information reference signal
  • downlink data transmission based on The measurement result of the CRS or CSI-RS fed back by the UE is scheduled;
  • the measurement of the uplink is generally based on a SRS (Sounding Reference Signal), and the data transmission of the uplink is scheduled based on the measurement result of the SRS by the network side.
  • the SRS measurement result can also be used when performing downlink transmission scheduling.
  • the network side node described may be one of the following network nodes of the LTE/LTE-A system: an evolved Node B (abbreviated as eNB) and a relay node (Relay Node, Referred to as RN), other low-power network nodes, for example, pico, femto, Home eNB (HeNB), etc.;
  • the user equipment described may be one of the following devices of the LTE/LTE-A system: User Equipment (User Equipment, UE), media server Local server A low-power network node that does not have an independent physical cell identity.
  • UE User Equipment
  • UE User Equipment
  • FIG. 9 is a schematic structural diagram of D2D communication according to Example 1 of the present invention.
  • the D2D communication control apparatus sets the Sounding Reference Signal (SRS) configuration information of the UE.
  • the set is sent to the user equipment, and the configuration information set includes at least three parts: first configuration information, second configuration information, and third configuration information.
  • the first configuration information indicates a configuration of the first sounding reference signal, and the first sounding reference signal is sent by the user equipment for uplink measurement when the user equipment performs cellular communication.
  • it may be an uplink periodic SRS and/or an aperiodic SRS in an LTE/LTE-A cellular communication system.
  • the second configuration information indicates the configuration of the second sounding reference signal
  • the second sounding reference signal is sent by the user equipment
  • the peer user equipment that performs D2D communication with the user equipment detects the second sounding reference signal and measures the user equipment based thereon.
  • the second sounding reference signal may reuse the SRS design in the LTE/LTE-A cellular communication system, but the configuration of the SRS (ie, the first sounding reference signal) of the cellular communication with the user equipment itself may be different, where "different" means It has different configuration parameters, or the values of configuration parameters are different.
  • the third configuration information indicates the configuration of the third sounding reference signal
  • the third sounding reference signal is sent by the peer user equipment that performs device-to-device communication with the user equipment, and the user equipment detects the third sounding reference signal, and based on the measurement thereof The channel condition of the peer user equipment to its own device-to-device communication link.
  • the third sounding reference signal can reuse the design of the SRS in the LTE/LTE-A cellular communication system, but the first probe with the foregoing
  • the configurations of the measurement reference signal and the second sounding reference signal may be different.
  • “different" means having different configuration parameters, or the values of the configuration parameters are different.
  • the configuration information of the sounding reference signal described in this example may be higher layer signaling, such as UE-specific Radio Resource Control (RRC) signaling, which may be Including one or more of the following information: bandwidth configuration of the sounding reference signal, subframe configuration, number of transmission ports, transmission bandwidth, frequency hopping bandwidth, frequency domain location, duration, configuration index, transmission comb, sequence cyclic shift , power offset.
  • RRC Radio Resource Control
  • the UE transmits and detects the D2D sounding reference signal according to the configuration of the high layer signaling.
  • the second configuration information may include user-specific (UE-specific) or device-to-device (D2D-specific) parameters as follows: number of transmission antenna ports of the sounding reference signal (srs-AntennaPort), transmission bandwidth (srs-Bandwidth) ), frequency domain location (freqDomainPosition) transmission comb (transmissionComb) cyclic shift (cyclicShift), configuration index (srs-ConfigIndex), power offset (pSRS-Offset).
  • the bandwidth configuration (srs-BandwidthConfig) and the subframe configuration (srs-SubframeConfig) can reuse the common configuration information of the sounding reference signal (ie, the SRS cell-specific parameter).
  • the meanings of the parameters are the same as those in the LTE/LTE-A specification, and are not described again.
  • the third configuration information may include the same parameters as the second configuration information, and details are not described herein.
  • the foregoing high layer signaling configures a subframe position at which the UE transmits a D2D communication sounding reference signal (ie, a second sounding reference signal), but only when the subframe is a D2D transmission subframe of the UE, the UE transmits the D2D sounding.
  • the reference signal Similarly, the UE receives the D2D sounding reference signal only when the sounding reference signal subframe of the UE configured by the high layer signaling is the D2D receiving subframe of the UE. In this way, the UE can be prevented from transmitting or receiving the D2D sounding reference signal in the non-D2D transmission or receiving time slot, thereby preventing the D2D communication from affecting the cellular communication.
  • the UE may determine the subframe position for transmitting the D2D sounding reference signal in the following three manners: Mode 1: The D2D transmission subframe, the cell-specific SRS subframe, and the UE-specific SRS subframe are jointly determined.
  • 10 is a first schematic diagram of a UE determining a subframe position for transmitting a D2D sounding reference signal according to Example 1 of the present invention, wherein an SRS subframe configuration parameter (srs-SubframeConfig) in a cell-specific SRS configuration indicates a cell
  • the SRS subframe of the level is as shown in FIG.
  • srs-SubframeConfig is configured as 2
  • the UE-specific SRS subframe indicated by the sounding reference signal configuration index parameter (srs-Configlndex) in the second configuration information is as shown in FIG.
  • srs-Configlndex is configured as 3
  • the UE determines a schematic diagram 2 of a subframe position for transmitting a D2D sounding reference signal, wherein an SRS subframe configuration parameter (srs-SubframeConfig) in a cell-specific SRS configuration indicates a SRS subframe of a cell level as shown in FIG. ⁇ is shown (ie srs-SubframeConfig is configured as 2).
  • the second configuration information does not define the transmission subframe of the second sounding reference signal, but the convention is that when the SRS subframe of the cell level is the D2D transmission subframe of the UE, the UE follows the second sounding reference signal in the subframe. Indicates to transmit the D2D sounding reference signal (ie, the second sounding reference signal), that is, 11 subframes in FIG.
  • FIG. 12 is a third schematic diagram of determining, by the UE according to the first embodiment of the present invention, a subframe position for transmitting a D2D sounding reference signal. As shown in FIG.
  • the UE when the UE transmits and detects a D2D sounding reference signal according to a configuration of high layer signaling, the high layer letter is Therefore, the UE does not limit the time domain location (subframe position) of the sounding reference signal, but the convention is that when the UE has D2D service transmission, the D2D sounding reference signal is sent according to the configuration of the high layer signaling; when the UE has the D2D When the service is received, the D2D sounding reference signal is detected according to the configuration of the high layer signaling, thereby further reducing the complexity of the implementation.
  • the D2D transmission subframe and the UE-specific SRS subframe are jointly determined, where the sounding reference signal configuration index parameter (srs-Configlndex) in the second configuration information is a UE-specific SRS subframe. That is, when a certain subframe is both a D2D transmission subframe and a UE-specific SRS subframe of the UE, the subframe is a transmission subframe of the second sounding reference signal of the UE.
  • the processing may be similarly determined, that is, determined by the D2D receiving subframe of the UE and the third configuration information, and details are not described herein again.
  • the fifth method is determined by the UE-specific SRS subframe, where the sounding reference signal configuration index parameter (srs-Configlndex) in the second configuration information is a UE-specific SRS subframe. That is, the UE-specific SRS subframe indicated by the second configuration information is the transmission subframe of the second sounding reference signal of the UE.
  • the processing may be similarly determined, that is, determined by the third configuration information of the UE, and details are not described herein again.
  • the cell-specific SRS subframe and the UE-specific SRS subframe are jointly determined, where the SRS subframe configuration parameter (srs-SubframeConfig) in the cell-specific SRS configuration indicates the cell level.
  • the SRS subframe, the UE-specific SRS subframe indicated by the sounding reference signal configuration index parameter (srs-Configlndex) in the second configuration information that is, the subframe in which the cell-specific SRS subframe and the UE-specific SRS subframe overlap
  • the UE transmits a D2D sounding reference signal (ie, a second sounding reference signal) in the sounding reference signal subframe.
  • the configuration information of the sounding reference signal may include high layer signaling and physical layer signaling.
  • the high-level signaling is used to indicate the configuration of the sounding reference signal.
  • the configuration of the reference signal is indicated by RRC signaling, and the specifically included parameters are as described above.
  • the transmitting and receiving the D2D sounding reference signal may be dynamically triggered by the physical layer signaling.
  • the triggering signaling of the D2D communication sounding reference signal is set in the authorization information of the D2D communication, and the trigger signaling is used to trigger the UE to send the D2D sounding reference signal.
  • the trigger signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D transmission.
  • the 1 bit is set to ", it is used to indicate that the UE sends a D2D sounding reference signal to be triggered; or, the trigger signaling is 1 bit, located at In the authorization information for scheduling the UE to perform D2D reception, when the 1-bit trigger signaling is set to "", the UE detects that the D2D sounding reference signal is triggered.
  • the trigger signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D communication, where the 1-bit trigger signaling is set to "representing that the D2D transmitting UE transmits the D2D sounding reference signal and the D2D receiving UE receives the D2D sounding reference signal.”
  • the combination of high-level signaling and physical layer signaling can ensure the flexibility of detecting and transmitting reference signals during D2D communication, and avoid unnecessary transmission and measurement of sounding reference signals, thereby saving UE power consumption.
  • the second sounding reference signal may be sent in the first D2D transmission subframe that meets a certain time interval, or the third sounding reference signal is detected in the first D2D receiving subframe that meets a certain interval.
  • the UE may send the second sounding reference signal in a subframe that is both the D2D transmitting subframe and the sounding reference signal subframe that meets a certain time interval, or meets a certain time interval.
  • the first one is a D2D transmission subframe and a subframe detection sounding subframe sub-frame detection third sounding reference signal.
  • FIG. 13 is a schematic structural diagram of D2D communication according to Example 2 of the present invention.
  • the control device of the D2D communication transmits the sounding reference signal configuration information set of the UE to the UE.
  • the configuration information set includes two parts: first configuration information and second configuration information.
  • the first configuration information indicates a configuration of the first sounding reference signal, and the first sounding reference signal is used for measurement of a cellular communication uplink, and channel measurement of device-to-device communication, and is sent by the UE.
  • the measurement reference signal of the device-to-device communication transmitted by it re-uses the configuration of the sounding reference signal of its cellular communication uplink, for example, the uplink in the LTE/LTE-A cellular communication system.
  • Periodic SRS and/or aperiodic SRS are used for channel measurement of the device-to-device communication link.
  • the peer UE that performs D2D communication with the UE receives the first sounding reference signal and based on this, measures the UE to the device of the opposite UE to Device communication link.
  • the second configuration information indicates a configuration of the second sounding reference signal
  • the second sounding reference signal is used for channel measurement of device-to-device communication, and is sent by the opposite UE that performs D2D communication with the UE, and the UE receives the second sounding reference signal. And based on this, measuring the channel condition of the peer UE to the UE device-to-device communication link.
  • the second sounding reference signal is configured the same as the first sounding reference signal of the opposite UE, that is, the second sounding reference signal reuses the configuration of the sounding reference signal of the uplink UE cellular communication uplink, or
  • the sounding reference signal of the cellular uplink of the D2D UE needs to be indicated to the D2D communication partner UE, so as to achieve the purpose of reusing the cellular uplink sounding reference signal for D2D communication channel measurement.
  • the configuration information of the reference signal described in this example may be higher layer signaling, such as UE-specific Radio Resource Control (RRC) signaling, which may include One or more of the following information: bandwidth configuration of the sounding reference signal, subframe configuration, number of transmission ports, transmission bandwidth, frequency hopping bandwidth, frequency domain location, duration, configuration index, transmission comb, sequence cyclic shift, Power offset.
  • RRC Radio Resource Control
  • the UE transmits and detects the D2D sounding reference signal according to the configuration of the high layer signaling.
  • the UE when the UE sends the first sounding reference signal according to the configuration of the high layer signaling, it is not necessary to distinguish the subframe type of the transmission reference signal, that is, the subframe that does not need to distinguish the transmission reference signal is a normal subframe or a device to device communication subframe.
  • there may be two power offset parameters for the sounding reference signal configured to the UE one power offset parameter for determining the sounding reference signal transmission power of the cellular communication uplink, and one power offset parameter for determining the device to device The sounding reference signal transmission power of the communication.
  • the second sounding reference signal may be received only in the device to device communication receiving subframe.
  • the transmit subframe position of the D2D sounding reference signal may be jointly determined by the D2D transmission subframe, the cell SRS subframe, and the UE SRS subframe.
  • 14 is a schematic diagram of a UE determining a subframe position for transmitting a D2D sounding reference signal according to Example 2 of the present invention, wherein an SRS subframe configuration parameter (srs-SubframeConfig) in a cell-specific SRS configuration indicates a cell level SRS sub-frame, as shown in ⁇ in Figure 14 (ie srs-SubframeConfig is configured as 2), the probe reference signal configuration index parameter in the first configuration information (Srs-Configlndex) indicates that the UE-specific SRS subframe is as shown in Figure 14 (that is, srs-Configlndex is configured as 3), that is, the subframe position where ⁇ and El coincide is the first probe configured for the UE.
  • Reference signal sub-frame position When the UE sends the first sounding reference signal in the first sounding reference signal subframe, different power offsets may be used on different links, for example, when the first sounding reference signal subframe of the UE is used for the uplink cellular link.
  • the first power offset sends the first probe signal, as shown by 1 in FIG. 14; when the first sounding reference signal subframe of the UE is used for the D2D link, the first power offset is used to send the first
  • the sounding reference signal is shown in the 11 sub-frames in Figure 14.
  • the processing may be similarly performed, that is, the power offset indicated by the second configuration information by the UE, and the SRS subframe indicated by the second public SRS subframe and the second configuration information. And detecting the second sounding reference signal in the subframe in which the D2D receiving subframes of the UE overlap, and details are not described herein.
  • the configuration information of the reference signal may include high layer signaling and physical layer signaling. The high-level signaling is used to indicate the configuration of the reference signal, for example, the configuration of the reference signal is indicated by the UE-specific RRC signaling, and the specific included parameters are as described above.
  • the sending and receiving of the first sounding reference signal and the second sounding reference signal may be dynamically triggered by physical layer signaling, for example, setting trigger signaling of the sounding reference signal in the authorization information, where the trigger signaling is used to trigger the UE to send the sounding reference.
  • the signal that is, the foregoing first sounding reference signal, or the triggering UE receives the sounding reference signal, that is, the aforementioned second sounding reference signal.
  • the trigger signaling is 1 bit, and is located in the authorization information sent by the scheduling UE. When the 1 bit is set to "1", it is used to indicate that the UE sends the sounding reference signal, and when set to "0", the UE does not take the sounding reference.
  • the trigger signaling is 1 bit, and is located in the authorization information received by the scheduling UE.
  • the 1-bit trigger signaling is set to "when the UE detects the sounding reference signal, setting "0" indicates that the UE does not take The action related to the sounding of the reference signal is detected.
  • the triggering signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D communication, and the 1-bit trigger signaling is set to "representing that the D2D transmitting UE transmits the D2D sounding reference signal, and the D2D receiving UE receives the signal.
  • the D2D sounding reference signal set to "0" means that the D2D UE does not take actions related to the D2D sounding reference signal.
  • the combination of high-level signaling and physical layer signaling can ensure the flexibility of detecting and transmitting reference signals during D2D communication, and avoid unnecessary transmission and measurement of sounding reference signals, thereby saving UE power consumption.
  • the UE sends the first sounding reference signal to be a non-regional molecular frame type, that is, does not distinguish whether it is a cellular communication subframe or a transmission subframe of D2D communication, and after receiving the trigger signaling, in the first subframe that satisfies the transmission condition. Sending a first sounding reference signal.
  • the UE sends the first sounding reference signal or the regional molecular frame type, that is, when the received trigger signaling is located in the authorization information for scheduling the cellular communication, the UE is in the first cellular communication that satisfies the condition for transmitting the cellular uplink sounding reference signal.
  • the first sounding reference signal is sent in the subframe; when the received trigger signaling is located in the authorization information of the scheduling device to the device communication, the UE satisfies the device-to-device communication link sounding reference signal transmission in the first
  • the first device reference signal is transmitted in the device-to-device communication subframe.
  • the receiving, by the UE, the second sounding reference signal may be a regional molecular frame type, that is, when the received trigger signaling is located in the authorization information received by the scheduling device to the device communication, the UE satisfies the device-to-device communication link sounding reference signal receiving condition in the first
  • the device-to-device receiving sub-frame receives the second sounding reference signal.
  • the foregoing transmission condition and/or reception condition may be that the foregoing subframe is a sounding reference signal subframe configured on the network side, and is the first sounding reference with an interval of 4 ms or more from the trigger signaling subframe.
  • Signal sub-frame Example 3: FIG. 15 is a schematic structural diagram of D2D communication according to Example 3 of the present invention.
  • a control device for D2D communication transmits a sounding reference signal configuration information set of a UE to a UE.
  • the configuration information set includes two parts: first configuration information and second configuration information.
  • the first configuration information indicates a configuration of a first sounding reference signal, where the first sounding reference signal is used for measurement of a cellular communication uplink, and may be, for example, an uplink period of an LTE/LTE-A cellular communication system and/or Or aperiodic SRS.
  • the second configuration information indicates a configuration of the second sounding reference signal, which is used for channel measurement of device-to-device communication, is received and/or transmitted by the UE during D2D communication, that is, D2D communication with the UE.
  • the peer UE has the same second reference signal configuration, or two UEs that are performing D2D communication have the same second sounding reference signal configuration.
  • the design of the second sounding reference signal may reuse the SRS in the LTE/LTE-A cellular communication system, but may be different from the configuration of the SRS of the UE's own cellular communication, that is, the first sounding reference signal.
  • the configuration information of the reference signal described in this example may be higher layer signaling, for example, UE-specific Radio Resource Control (RRC) signaling, and the RRC signaling may include the following One or more of the information: bandwidth configuration of the sounding reference signal, subframe configuration, number of transmission ports, transmission bandwidth, frequency hopping bandwidth, frequency domain location, duration, configuration index, transmission comb, sequence cyclic shift, power Offset.
  • RRC Radio Resource Control
  • the UE transmits and detects the D2D sounding reference signal according to the configuration of the high layer signaling.
  • the UE when the UE sends and detects the D2D sounding reference signal according to the configuration of the high layer signaling, the UE only transmits the D2D sounding reference signal in the D2D transmitting subframe, and only receives the D2D sounding reference signal in the D2D receiving subframe.
  • the foregoing high layer signaling configures a subframe configuration in which the UE sends a D2D sounding reference signal (ie, a second reference signal), but only when the subframe is a D2D transmission subframe of the UE, the UE transmits the D2D sounding reference signal; Similarly, the UE receives the D2D sounding reference signal only when the D2D sounding reference signal receiving subframe configured by the high layer signaling is the D2D receiving subframe of the UE. In this way, the UE can be prevented from transmitting or receiving the D2D sounding reference signal in the non-D2D transmission or receiving time slot, thereby preventing the D2D communication from affecting the cellular communication.
  • a D2D sounding reference signal ie, a second reference signal
  • the UE may determine the subframe position for transmitting the D2D sounding reference signal by using the following methods: Manner 1: The D2D transmission subframe, the cell-specific SRS subframe, and the UE-specific SRS subframe are jointly determined.
  • 16 is a first schematic diagram of a UE determining a subframe position for transmitting a D2D sounding reference signal according to Example 3 of the present invention, wherein an SRS subframe configuration parameter (srs-SubframeConfig) in a cell-specific SRS configuration indicates a cell
  • the SRS subframe of the level is shown in FIG.
  • the UE-specific SRS subframe indicated by the sounding reference signal configuration index parameter (srs-Configlndex) in the second configuration information is as shown in FIG. 16.
  • the El in the middle ie, the srs-Configlndex is configured as 10
  • the UE transmits the D2D sounding reference signal ie, the second sounding reference signal
  • the D2D sounding reference signal ie, the second sounding reference signal
  • Manner 2 Determined by the D2D transmission/reception subframe and the cell SRS subframe.
  • 17 is a second schematic diagram of a UE determining a subframe position for transmitting a D2D sounding reference signal according to Example 3 of the present invention. As shown in FIG. 17, ⁇ is a D2D transmission subframe of a UE, and ⁇ is a cell-specific SRS subframe. The UE-specific SRS subframe is not indicated in the second configuration information.
  • FIG. 18 is a third schematic diagram of determining, by the UE, a subframe position for transmitting a D2D sounding reference signal according to Example 3 of the present invention.
  • the UE when a D2D receiving subframe of a UE is a cell-specific SRS subframe at the same time, the UE And detecting, by the configuration of the second configuration information, the second sounding reference signal sent by the D2D peer UE.
  • the sounding reference signal of the D2D link may not follow the cell-specific SRS subframe configuration, but the UE may send the second probe according to the configuration of the second configuration information in the D2D transmitting subframe.
  • a reference signal the UE detects the second sounding reference signal according to the configuration of the second configuration information in the D2D receiving subframe; or, when the UE has the D2D service, the D2D sounding reference signal is sent according to the configuration of the second configuration information;
  • the D2D sounding reference signal is received according to the configuration of the second configuration information, thereby further reducing the complexity of the implementation. No longer.
  • the configuration information of the sounding reference signal may include high layer signaling and physical layer signaling.
  • the high-level signaling is used to indicate the configuration of the reference signal, for example, the configuration of the reference signal is indicated by dedicated RRC signaling, and the specific included parameters are as described above.
  • the D2D sounding reference signal can be dynamically triggered by the physical layer signaling, for example, the triggering signaling of the D2D communication sounding reference signal is set in the authorization information of the D2D communication, and the trigger signaling is used to trigger the UE to send or receive the D2D sounding reference.
  • the signal that is, the aforementioned second sounding reference signal.
  • the trigger signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D transmission.
  • the UE When the 1 bit is set to ", it is used to indicate that the UE sends the D2D sounding reference signal, and when set to "0", the UE does not take the D2D.
  • the action related to the sounding reference signal is detected; or the triggering signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D reception.
  • the 1-bit trigger signaling When the 1-bit trigger signaling is set to "”, the UE receives the D2D sounding reference signal and sets it to "0". Indicates that the UE is not taking actions related to the D2D sounding reference signal.
  • the trigger signaling is 1 bit, and is located in the authorization information for scheduling the UE to perform D2D communication.
  • the 1 bit trigger signaling is set to "1" to indicate that the D2D transmitting UE sends the D2D sounding reference signal, and the D2D receiving UE receives the D2D sounding reference signal. Setting to "0" means that the D2D UE does not take actions related to the D2D sounding reference signal.
  • the combination of high-level signaling and physical layer signaling can ensure the flexibility of detecting and transmitting reference signals during D2D communication, and avoid unnecessary transmission and measurement of sounding reference signals, thereby saving UE power consumption. Further, after receiving the trigger signaling, the UE may send the second sounding reference signal in the first D2D transmission subframe that meets a certain interval, or receive the second in the first D2D receiving subframe that meets a certain interval.
  • the UE may send the second sounding reference signal in a subframe that is both the D2D transmission subframe and the sounding reference signal subframe that meets a certain interval.
  • the above-mentioned certain interval may be 4 milliseconds (mile-second, abbreviated as ms), and is 4 subframes in the LTE/LTE-A system.
  • ms milliseconds
  • the 4ms here is just an example and is not a limitation. In theory, it can be any integer.
  • the UE may send the second sounding reference signal in the first transmit D2D sounding reference signal subframe that meets a certain interval, where the determination of the D2D sounding reference signal subframe is as described above;
  • the UE may receive the second sounding reference signal in the first received D2D sounding reference signal subframe that meets a certain interval.
  • the above-mentioned certain interval may be 4 milliseconds (mile-second, abbreviated as ms), and is 4 subframes in the LTE/LTE-A system.
  • ms milliseconds
  • FIG. 19 is a schematic diagram 4 of a subframe in which a UE determines to transmit a D2D sounding reference signal according to Example 3 of the present invention.
  • ⁇ is a D2D transmission subframe of a UE
  • ⁇ is a cell-specific SRS subframe.
  • the UE-specific SRS subframe is not indicated in the second configuration information. It is assumed that the signaling for triggering the UE to send the second sounding reference signal is located in the authorization information for scheduling the UE to perform D2D transmission, and the authorized transmission timing is 4, that is, the authorization information of the UE transmitting the D2D service in the D2D transmission subframe 1 is in the previous radio frame.
  • the subframe 7 is transmitted, and when the trigger signaling of the authorization information is set to trigger the UE to send the second sounding reference signal, the UE transmits the D2D sounding reference signal in the D2D transmission subframe 1. For the same reason that the UE detects the second sounding reference signal, it will not be described again.
  • the foregoing embodiment provides a reference signal sending method and apparatus in a cellular system supporting D2D communication, and uses a manner in which a network side node sends an SRS configuration information set to a user terminal to indicate a user equipment.
  • SRS for channel measurement in cellular communication and D2D communication solves the problem of how to perform traffic transmission when D2D communication is introduced in a cellular system in the related art, and realizes compatibility between D2D communication and cellular communication, and improves system performance.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices.
  • they may be implemented by program code executable by the computing device so that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.

Abstract

本发明公开了一种探测参考信号（SRS）的传输方法、装置及系统和用户设备，其中，该方法包括以下步骤：网络侧节点向用户设备发送SRS配置信息集，其中，SRS配置信息集包括：用于指示第一SRS配置的第一配置信息和用于指示第二SRS配置的第二配置信息；其中，第一SRS在蜂窝通信上行链路传输，用于蜂窝通信时上行链路的信道测量，第二SRS在设备到设备（D2D）通信链路传输，用于D2D通信时D2D 链路的信道测量。通过本发明，解决了相关技术中在蜂窝通信系统中引入D2D通信时参考信号的配置及传输的问题，实现了D2D通信与蜂窝通信的兼容，避免了用户设备设计和实现的复杂度的显著增加。

Description

探测参考信号的传输方法、 装置及系统和用户设备 技术领域 本发明涉及无线通信领域，具体而言，涉及一种探测参考信号（Sounding Reference Signal, 简称为 SRS) 的传输方法、 装置及系统和用户设备 （User Equipment, 简称为 UE)。 背景技术 蜂窝通信由于实现了对有限频谱资源的复用，使得无线通信技术得到了蓬勃发展。 在蜂窝系统中， 当两个用户设备 （UE) 之间有业务需要传输时， 用户设备 1 (UE1 ) 到用户设备 2 (UE2) 的业务数据， 会首先通过空口传输给基站 1， 基站 1通过核心网 将该用户数据传输给基站 2， 基站 2再将上述业务数据通过空口传输给 UE2。 UE2到 UE1的业务数据传输采用类似的处理流程。 图 1是根据相关技术的 UE位于同一基站 小区时的蜂窝通信系统的示意图， 如图 1所示， 当 UE1和 UE2位于同一个蜂窝小区， 那么虽然基站 1和基站 2是同一个站点， 然而， 一次数据传输仍然会消耗两份无线频 谱资源， 并且数据传输仍然会通过核心网的转发。 由此可见， 如果用户设备 1和用户设备 2位于同一小区并且相距较近， 那么上述 的蜂窝通信方法显然不是最优的通信方式。 而实际上， 随着移动通信业务的多样化， 例如， 社交网络、 电子支付等在无线通信系统中的应用越来越广泛， 使得近距离用户 之间的业务传输需求日益增长。 因此， 设备到设备的通信模式日益受到广泛关注。 所 谓设备到设备 （Device-to-Device, 简称为 D2D)通信， 是指业务数据不经过基站进行 转发， 而是直接由源用户设备通过空口传输给目标用户设备。 图 2是根据相关技术的 D2D通信的示意图， 如图 2所示， 这种通信模式区别于传统蜂窝系统的通信模式。 对 于近距离通信的用户来说， D2D通信方式不但节省了无线频谱资源， 而且降低了核心 网的数据传输压力。 在蜂窝通信中，调度的依据之一是信道状况。即在收发端传输参考信号（Reference Signal, 简称 RS， 也称为导频）， 根据对参考信号的测量获得网络节点与用户设备之间 的信道状态信息 （Channel State Information, 简称为 CSI)， 并以此信道状态信息作为 调度的一个依据。 在蜂窝系统中引入 D2D通信， 同样涉及业务传输的调度问题。 即， 调度 UE之间 作 D2D通信时， 需要以 UE之间的信道状态信息作为调度的依据， 该信道状态信息则 需要通过对参考信号的测量而获得。 目前， 相关技术中暂时没有针对在蜂窝通信系统 中引入 D2D通信时参考信号配置及传输问题的解决方案。 发明内容 本发明实施例提供了一种探测参考信号（Sounding Reference Signal, 简称为 SRS) 的传输方案，以至少解决上述相关技术中在蜂窝通信系统中引入 D2D通信时参考信号 的配置及传输的问题。 根据本发明实施例的一个方面， 提供了一种 SRS的传输方法， 包括以下步骤： 网 络侧节点向用户设备发送 SRS配置信息集， 其中， SRS配置信息集包括： 用于指示第 一 SRS配置的第一配置信息和用于指示第二 SRS配置的第二配置信息； 其中， 第一 SRS 在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路的信道测量， 第二 SRS 在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测量。 优选地， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， SRS 配置信息集还包括：用于指示第三 SRS配置的第三配置信息，第三 SRS为用户设备在 D2D通信时检测的对端用户设备发送的 SRS，用于 D2D通信时 D2D链路的信道测量。 优选地， 第一配置信息、 第二配置信息和第三配置信息均包括： 高层配置信令， 高层配置信令包括以下参数至少之一： 探测参考信号的带宽配置、 子帧配置、 传输端 口数、 传输带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输梳、 序列循环移 位、 功率偏移。 优选地， 用户设备按照第二配置信息的配置在满足第一条件的子帧中发送第二 SRS, 按照第三配置信息的配置在满足第二条件的子帧中检测第三 SRS， 其中， 满足 第一条件的子帧和满足第二条件的子帧包括以下之一： 满足第一条件的子帧为用户设 备在 D2D通信时的发送子帧， 满足第二条件的子帧为用户设备在 D2D通信时的接收 子帧； 满足第一条件的子帧为小区专用 SRS的子帧， 且为用户设备在 D2D通信时的 发送子帧， 满足第二条件的子帧为小区专用 SRS的子帧， 且为用户设备在 D2D通信 时的接收子帧； 满足第一条件的子帧为小区专用 SRS的子帧， 且为第二配置信息指示 的 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧， 满足第二条件的子帧为小 区专用 SRS的子帧， 且为第三配置信息指示的 SRS的子帧， 且为用户设备在 D2D通 信时的接收子帧。 优选地， 用户设备按照第二配置信息的配置在满足第一条件的子帧中发送第二 SRS,其中，满足第一条件的子帧包括以下之一： 用户设备在 D2D通信时的发送子帧; 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧； 小区专用 SRS的子 帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧; 第二配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧； 第二配 置信息指示的 SRS的子帧； 小区专用 SRS的子帧， 且为第二配置信息指示的 SRS的 子帧。 优选地， 用户设备按照第三配置信息的配置在满足第二条件的子帧中检测第三 SRS,其中，满足第二条件的子帧包括以下之一： 用户设备在 D2D通信时的接收子帧; 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的接收子帧； 小区专用 SRS的子 帧， 且为第三配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的接收子帧; 第三配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的接收子帧； 第三配 置信息指示的 SRS的子帧； 小区专用 SRS的子帧， 且为第三配置信息指示的 SRS的 子帧。 优选地， 第二配置信息中包括用于触发用户设备发送第二 SRS的第一触发信令， 第三配置信息中包括用于触发用户设备检测第三 SRS的第二触发信令， 网络侧节点向 用户设备发送 SRS配置信息集之后， 该方法还包括： 用户设备在接收到第一触发信令 时， 在第一个符合第一预设间隔的满足第一条件的子帧中发送第二 SRS; 用户设备在 接收到第二触发信令时， 在第一个符合第二预设间隔的满足第二条件的子帧中检测第 三 SRS; 其中， 第一预设间隔为第一触发信令的接收子帧与第二 SRS的发送子帧的最 小时间间隔，第二预设间隔为第二触发信令的接收子帧与第三 SRS的接收子帧的最小 时间间隔。 优选地， 第一 SRS还用于用户设备在 D2D通信时向对端用户设备发送， 用于对 端用户设备进行 D2D链路的信道测量;第二 SRS由对端用户设备在 D2D通信时发送， 用于用户设备在 D2D通信时进行 D2D链路的信道测量。 优选地， 用户设备按照第一配置信息的配置在满足第一条件的子帧中发送第一 SRS, 按照第二配置信息的配置在满足第二条件的子帧中检测第二 SRS， 其中， 满足 第一条件的子帧为第一配置信息指示的 SRS的子帧，满足第二条件的子帧为第二配置 信息指示的 SRS的子帧， 且满足第一条件的子帧和满足第二条件的子帧均为小区专用 SRS子帧。 优选地， 第一配置信息中包括用于触发用户设备发送第一 SRS的第一触发信令， 第二配置信息中包括用于触发用户设备检测第二 SRS的第二触发信令， 网络侧节点向 用户设备发送 SRS配置信息集之后， 该方法还包括： 用户设备在接收到第一触发信令 时， 在第一个符合第一预设间隔的满足第一条件的子帧中发送第一 SRS; 用户设备在 接收到第二触发信令时， 在第一个符合第二预设间隔的满足第二条件的子帧中检测第 二 SRS; 其中， 第一预设间隔为第一触发信令的接收子帧与第一 SRS的发送子帧的最 小时间间隔，第二预设间隔为第二触发信令的接收子帧与第二 SRS的接收子帧的最小 时间间隔。 优选地， 第一配置信息中包括功率偏移参数， 功率偏移参数包括第一功率偏移量 和第二功率偏移量， 其中， 第一功率偏移量用于确定用户设备在蜂窝通信系统中上行 链路发送第一 SRS的功率， 第二功率偏移量用于确定用户设备在 D2D通信链路发送 第一 SRS的功率， 网络侧节点向用户设备发送 SRS配置信息集之后， 该方法还包括： 如果发送第一 SRS的子帧为用户设备的 D2D通信发送子帧， 则用户设备以第二功率 偏移量发送第一 SRS， 否则， 用户设备以第一功率偏移量发送第一 SRS。 优选地， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， 用于 对端用户设备进行 D2D通信的信道测量， 以及用户设备在 D2D通信时检测的对端用 户设备发送的 SRS， 用于用户设备进行 D2D通信的信道测量。 优选地， 第一配置信息和 /或第二配置信息包括： 高层配置信令， 高层配置信令包 括以下参数至少之一： 探测参考信号的带宽配置、 子帧配置、 传输端口数、 传输带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输梳、 序列循环移位、 功率偏移。 优选地， 用户设备按照第二配置信息的配置在满足第一条件的子帧中发送第二 SRS, 按照第二配置信息的配置在满足第二条件的子帧中检测第二 SRS， 其中， 满足 第一条件的子帧和满足第二条件的子帧包括以下之一： 满足第一条件的子帧为用户设 备在 D2D通信时的发送子帧， 满足第二条件的子帧为用户设备在 D2D通信时的接收 子帧； 满足第一条件的子帧为小区专用 SRS的子帧， 且为用户设备在 D2D通信时的 发送子帧， 满足第二条件的子帧为小区专用 SRS的子帧， 且为用户设备在 D2D通信 时的接收子帧； 满足第一条件的子帧为小区专用 SRS的子帧， 且为第二配置信息指示 的 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧， 满足第二条件的子帧为小 区专用 SRS的子帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备在 D2D通 信时的接收子帧。 优选地， 用户设备按照第二配置信息的配置在满足第一条件的子帧中发送第二 SRS,其中，满足第一条件的子帧包括以下之一： 用户设备在 D2D通信时的发送子帧; 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧； 小区专用 SRS的子 帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的发送子帧。 优选地， 用户设备按照第二配置信息的配置在满足第二条件的子帧中检测第二 SRS,其中，满足第二条件的子帧包括以下之一： 用户设备在 D2D通信时的接收子帧; 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的接收子帧； 小区专用 SRS的子 帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备在 D2D通信时的接收子帧。 优选地，第二配置信息中包括用于触发用户设备发送第二 SRS的第一触发信令和 用于触发用户设备检测第二 SRS 的第二触发信令， 网络侧节点向用户设备发送 SRS 配置信息集之后， 该方法还包括： 用户设备在接收到第一触发信令时， 在第一个符合 第一预设间隔的满足第一条件的子帧中发送第二 SRS; 用户设备在接收到第二触发信 令时， 在第一个符合第二预设间隔的满足第二条件的子帧中检测第二 SRS; 其中， 第 一预设间隔为第一触发信令的接收子帧与第二 SRS的发送子帧的最小时间间隔， 第二 预设间隔为第二触发信令的接收子帧与第二 SRS的接收子帧的最小时间间隔。 优选地， 网络侧节点向用户设备发送 SRS配置信息集之后， 该方法还包括： 用户 设备根据第一配置信息向网络侧节点发送第一 SRS， 以用于蜂窝系统中上行链路的信 道测量， 或者根据第一配置信息在 D2D通信时向对端用户设备发送第一 SRS， 以用于 D2D链路的信道测量； 和 /或， 用户设备根据第二配置信息在 D2D通信时向对端用户 设备发送第二 SRS或者检测来自对端用户设备的第二 SRS， 以用于 D2D链路的信道
根据本发明实施例的另一方面， 提供了一种 SRS的传输方法， 包括以下步骤： 用 户设备接收来自网络侧节点的用于指示 SRS配置的 SRS配置信息集， 其中， SRS配 置信息集包括:用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的第 二配置信息； 其中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路的 信道测量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测量。 优选地， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， SRS 配置信息集中还包括：用于指示第三 SRS配置的第三配置信息，第三 SRS为用户设备 在 D2D通信时检测的对端用户设备发送的 SRS，用于 D2D通信时 D2D链路的信道测
优选地， 第一 SRS还用于用户设备在 D2D通信时向对端用户设备发送， 用于对 端用户设备进行 D2D链路的信道测量;第二 SRS由对端用户设备在 D2D通信时发送， 用于用户设备在 D2D通信时进行 D2D链路的信道测量。 优选地， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， 用于 对端用户设备进行 D2D通信的信道测量， 以及用户设备在 D2D通信时检测的对端用 户设备发送的 SRS， 用于用户设备进行 D2D通信的信道测量。 优选地，用户设备接收来自网络侧节点的用于指示 SRS配置的 SRS配置信息集之 后， 该方法还包括： 用户设备根据第一配置信息向网络侧节点发送第一 SRS， 以用于 蜂窝系统中上行链路的信道测量，或者根据第一配置信息在 D2D通信时向对端用户设 备发送第一 SRS， 以用于 D2D链路的信道测量； 和 /或， 用户设备根据第二配置信息 在 D2D通信时向对端用户设备发送第二 SRS或者检测来自对端用户设备的第二 SRS, 以用于 D2D链路的信道测量。 根据本发明实施例的再一方面， 提供了一种 SRS的传输装置， 位于网络侧节点， 包括： 发送模块， 用于向用户设备发送 SRS配置信息集， 其中， SRS配置信息集包括: 用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的第二配置信息;其 中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路的信道测量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测量。 根据本发明实施例的又一方面， 提供了一种用户设备， 包括： 接收模块， 用于接 收来自网络侧节点的用于指示探测参考信号 SRS配置的 SRS配置信息集， 其中， SRS 配置信息集包括:用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的 第二配置信息； 其中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测 量。 优选地， 该用户设备还包括： 第一配置信息模块， 用于根据第一配置信息向网络 侧节点发送第一 SRS， 以用于蜂窝系统中上行链路的信道测量， 或者根据第一配置信 息在 D2D通信时向对端用户设备发送第一 SRS， 以用于 D2D链路的信道测量；和 /或， 第二配置信息模块， 用于根据第二配置信息在 D2D 通信时向对端用户设备发送第二 SRS或者检测来自对端用户设备的第二 SRS， 以用于 D2D链路的信道测量。 根据本发明实施例的另一方面， 提供了一种 SRS 的传输系统， 包括： 上述 SRS 的传输装置以及上述用户设备。 通过本上述的方法和装置，采用网络侧节点向用户设备发送 SRS配置信息集的方 式，解决了相关技术中在蜂窝通信系统中引入 D2D通信时参考信号的配置及传输的问 题， 进而解决了 D2D通信时信道测量的问题， 为 D2D通信的调度提供依据， 并且实 现了 D2D通信与蜂窝通信的兼容， 避免了用户设备设计和实现的复杂度的显著增加。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部分， 本发 明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不当限定。 在附图 中： 图 1是根据相关技术的 UE位于同一基站小区时的蜂窝通信系统的示意图； 图 2是根据相关技术的 D2D通信的示意图； 图 3是根据本发明实施例的 SRS的传输装置的结构框图； 图 4是根据本发明实施例的用户设备的结构框图； 图 5是根据本发明优选实施例的用户设备的结构框图； 图 6是根据本发明实施例的 SRS的传输系统的结构框图； 图 7是根据本发明实施例二的 LTE/LTE-A系统无线帧的结构示意图； 图 8是根据本发明实施例二的 LTE/LTE-A系统物理资源的结构示意图； 图 9是根据本发明实例 1的 D2D通信的结构示意图； 图 10是根据本发明实例 1的 UE确定发送 D2D探测参考信号的子帧位置的示意 图一； 图 11是根据本发明实例 1的 UE确定发送 D2D探测参考信号的子帧位置的示意 图二； 图 12是根据本发明实例 1的 UE确定发送 D2D探测参考信号的子帧位置的示意 图三； 图 13是根据本发明实例 2的 D2D通信的结构示意图； 图 14是根据本发明实例 2的 UE确定发送 D2D探测参考信号的子帧位置的示意 图； 图 15是根据本发明实例 3的 D2D通信的结构示意图； 图 16是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图一； 图 17是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图二； 图 18是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图三； 图 19是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图四。 具体实施方式 下文中将参考附图并结合实施例来详细说明本发明。 需要说明的是， 在不冲突的 情况下， 本申请中的实施例及实施例中的特征可以相互组合。 根据本发明实施例， 提供了一种 SRS的传输方法， 该方法包括以下步骤： 网络侧 节点向用户设备发送 SRS 配置信息集， 其中， SRS 配置信息集包括： 用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的第二配置信息； 其中， 第一 SRS 在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路的信道测量， 第二 SRS在 D2D 通信链路传输， 用于 D2D通信时 D2D链路的信道测量。 根据本发明实施例， 还提供了另一种 SRS的传输方法， 包括以下步骤： 用户设备 接收来自网络侧节点的用于指示 SRS配置的 SRS配置信息集， 其中， SRS配置信息 集包括:用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的第二配置 信息； 其中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路的信道测 量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测量。 通过上述步骤， 采用网络侧节点向用户设备发送 SRS配置信息集的方式， 解决了 相关技术中在蜂窝系统中引入 D2D通信时参考信号的配置及传输的问题，进而解决了 D2D通信时信道测量的问题， 为 D2D通信的调度提供依据， 并且实现了 D2D通信与 蜂窝通信的兼容， 避免了用户设备设计和实现的复杂度的显著增加。 需要说明的是， 这里 D2D通信时的信道测量是指 D2D链路的信道状态信息的测 量或者 D2D链路的同步， 其中， 该信道状态信息包括但不限于信道质量信息、预编码 矩阵指示、 秩指示、 信号干扰噪声比 （SINR)。 在实施过程中， 可以采用如下三种方案： 方案 （1 )， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， 用 于对端用户设备在 D2D通信时进行 D2D链路的信道测量， SRS配置信息集还包括： 用于指示第三 SRS配置的第三配置信息， 第三 SRS为用户设备在 D2D通信时检测的 对端用户设备发送的 SRS,用于该用户设备在 D2D通信时进行 D2D链路的信道测量。 方案 （2)， 第一 SRS还用于用户设备在 D2D通信时向对端用户设备发送， 用于 对端用户设备进行 D2D链路的信道测量； 第二 SRS由对端用户设备在 D2D通信时发 送， 用于用户设备在 D2D通信时进行 D2D链路的信道测量。 方案 （3)， 第二 SRS为用户设备在 D2D通信时向对端用户设备发送的 SRS， 以 及用户设备在 D2D通信时检测的对端用户设备发送的 SRS,分别用于对端用户设备和 用户设备在 D2D通信时进行 D2D链路的信道测量。 优选地， 用户设备接收来自网络侧节点的 SRS配置信息集之后， 用户设备根据第 一配置信息向网络侧节点发送第一 SRS， 以用于蜂窝系统中上行链路的信道测量， 或 者根据第一配置信息在 D2D通信时向对端用户设备发送第一 SRS， 以用于 D2D链路 的信道测量； 和 /或， 用户设备根据第二配置信息在 D2D通信时向对端用户设备发送 第二 SRS或者检测来自对端用户设备的第二 SRS， 以用于 D2D链路的信道测量。 对应于网络侧的传送方法， 本发明实施例提供了一种 SRS的传输装置。 图 3是根 据本发明实施例的 SRS的传输装置的结构框图， 如图 3所示， 位于网络侧节点， 该传 输装置 30包括： 发送模块 32， 设置为向用户设备发送 SRS配置信息集， 其中， SRS 配置信息集包括:用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的 第二配置信息； 其中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测
优选地， 该传输装置 30还包括： 配置模块 34， 耦合至发送模块 32， 设置为配置 用户设备的 SRS参数并生成上述 SRS配置信息集。配置模块 34生成上述 SRS配置信 息集后， 发送模块 3向用户设备发送 SRS配置信息集。 对应于用户设备侧的传送方法， 本发明实施例提供了一种用户设备。 图 4是根据 本发明实施例的用户设备的结构框图， 如图 4所示， 该用户设备 40包括： 接收模块 42， 设置为接收来自网络侧节点的用于指示 SRS配置的 SRS配置信息集， 其中， SRS 配置信息集包括:用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的 第二配置信息； 其中， 第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链路的信道测
图 5是根据本发明优选实施例的用户设备的结构框图， 如图 5所示， 该用户设备 40还包括： 第一配置信息模块 52， 设置为根据第一配置信息向网络侧节点发送第一 SRS, 以用于蜂窝系统中上行链路的信道测量， 或者根据第一配置信息在 D2D通信时 向对端用户设备发送第一 SRS， 以用于 D2D链路的信道测量； 和 /或， 第二配置信息 模块 54， 设置为根据第二配置信息在 D2D通信时向对端用户设备发送第二 SRS或者 检测来自对端用户设备的第二 SRS， 以用于 D2D链路的信道测量。 根据本发明实施例， 还提供了一种 SRS的传输系统。 图 6是根据本发明实施例的
SRS的传输系统的结构框图， 如图 6所示， 该系统包括： 上述 D2D通信的 SRS的传 输装置 30以及上述 D2D通信的用户设备 40。 通过上述系统， 采用网络侧节点向用户设备发送 SRS配置信息集的方式， 解决了 相关技术中在蜂窝系统中引入 D2D通信时参考信号的配置及传输的问题，实现了 D2D 通信与蜂窝通信的兼容， 提高了系统的性能。 为了帮助理解上述实施例， 下面进一步描述本发明的其它多个优选实施例。 本实施例提供了一种参考信号的发送方法，以解决支持 D2D通信的蜂窝通信系统 中的参考信号配置与发送的问题。 首先， 提出一种参考信号的配置方法， 包括： 将探测参考信号的配置信息集发送给用户设备； 其中， 配置信息集至少包括第一 配置信息和第二配置信息； 第一配置信息指示第一探测参考信号的配置， 第二配置信 息指示第二探测参考信号的配置； 第一探测参考信号为蜂窝通信上行链路的探测参考 信号， 用于用户设备在进行蜂窝通信时的上行链路的信道测量； 第二探测参考信号为 设备到设备通信的探测参考信号， 用于用户设备在进行设备到设备通信时的设备到设 备链路的信道测量。 对应于方案 （1 )， 上述配置方法可以进一步包括： 配置信息集还包括第三配置信 息， 第三配置信息指示第三探测参考信号的配置； 其中， 第一探测参考信号由用户设 备发送， 用于网络侧设备进行蜂窝通信上行链路的信道测量； 第二探测参考信号由用 户设备发送， 用于 D2D通信的对端用户设备进行设备到设备链路的信道测量； 第三探 测参考信号由与用户设备进行设备到设备通信的对端用户设备发送， 用于用户设备进 行 D2D通信时 D2D链路的信道测量。 对应于方案 （2)， 上述配置方法可以进一步包括： 第一探测参考信号由用户设备 发送，用于网络侧设备进行蜂窝通信上行链路的信道测量和 /或与用户设备进行设备到 设备通信的对端用户设备进行设备到设备通信链路的信道测量； 第二探测参考信号由 与用户设备进行设备到设备通信的对端用户设备发送， 用于用户设备进行设备到设备 通信链路的信道测量。 对应于方案 （3)， 上述配置方法可以进一步包括： 第一探测参考信号由用户设备 发送， 用于网络侧设备进行蜂窝通信上行链路的信道测量； 第二探测参考信号由用户 设备发送， 用于与用户设备进行设备到设备通信的对端用户设备进行设备到设备通信 链路的信道测量； 和 /或， 第二探测参考信号由与用户设备进行设备到设备通信的对端 用户设备发送， 用于用户设备进行设备到设备通信链路的信道测量。 优选地，第一和 /或第二和 /或第三配置信息可以包括高层配置信令，高层配置信令 包括以下参数的至少之一： 探测参考信号的带宽配置、 子帧配置、 传输端口数、 传输 带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输梳、 序列循环移位、 功率偏 移。 在方案（1 ) 中， 可以进一步包括： 用户设备按照第二配置信息的配置在满足第一 条件的子帧中发送第二探测参考信号， 按照第三配置信息的配置在满足第二条件的子 帧中检测第三探测参考信号； 其中， 满足第一条件的子帧和满足第二条件的子帧包括 以下方式之一： 方式一、 满足第一条件的子帧是用户设备的设备到设备通信发送子帧， 满足第二 条件的子帧是用户设备的设备到设备通信接收子帧； 方式二、 满足第一条件的子帧是小区专用探测参考信号子帧， 并且是用户设备的 设备到设备通信发送子帧； 满足第二条件的子帧是小区专用探测参考信号子帧， 并且 是用户设备的设备到设备通信接收子帧； 方式三、 满足第一条件的子帧是小区专用探测参考信号子帧， 并且是第二配置信 息指示的探测参考信号子帧， 并且是用户设备的设备到设备通信发送子帧； 满足第二 条件的子帧是小区专用探测参考信号子帧， 并且是第三配置信息指示的探测参考信号 子帧， 并且是用户设备的设备到设备通信接收子帧； 方式四、 满足第一条件的子帧是第二配置信息指示的探测参考信号子帧， 并且是 用户设备的设备到设备通信发送子帧； 满足第二条件的子帧是第三配置信息指示的探 测参考信号子帧， 并且是用户设备的设备到设备通信接收子帧； 方式五、 满足第一条件的子帧是第二配置信息指示的探测参考信号子帧； 满足第 二条件的子帧是第三配置信息指示的探测参考信号子帧； 方式六、 满足第一条件的子帧是小区专用探测参考信号子帧， 并且是第二配置信 息指示的探测参考信号子帧； 满足第二条件的子帧是小区专用探测参考信号子帧， 并 且是第三配置信息指示的探测参考信号子帧。 在方案（1 ) 中， 优选地， 第二配置信息可以进一步包括触发信令， 当触发信令触 发用户设备发送第二探测参考信号时， 用户设备在第一个满足预设间隔和满足第一条 件的子帧中发送第二探测参考信号； 第三配置信息进一步包括触发信令， 当触发信令 触发用户设备检测第三探测参考信号时， 用户设备在第一个满足预设间隔和第二条件 的子帧中检测第三探测参考信号； 预设间隔是触发信令接子帧与探测参考信号接收或 发送子帧的最小时间间隔。 在方案（2) 中， 可以进一步包括： 用户设备按照第一配置信息的配置在满足第一 条件的子帧中发送第一探测参考信号， 按照第二配置信息的配置在满足第二条件的子 帧中检测第二探测参考信号； 满足第一条件的子帧和满足第二条件的子帧包括： 满足 第一条件的子帧是小区专用探测参考信号子帧， 并且是第一配置信息指示的探测参考 信号子帧； 满足第二条件的子帧是小区专用探测参考信号子帧， 并且是第二配置信息 指示的探测参考信号子帧。 在方案（2) 中， 优选地， 第一配置信息可以进一步包括触发信令， 当触发信令触 发用户设备发送第一探测参考信号时， 用户设备在第一个满足预设间隔和满足第一条 件的子帧中发送第一探测参考信号； 第二配置信息进一步包括触发信令， 当触发信令 触发用户设备检测第二探测参考信号时， 用户设备在第一个满足预设间隔和第二条件 的子帧中检测第二探测参考信号； 预设间隔是触发信令接收子帧与探测参考信号接收 或发送子帧的最小时间间隔。 此外， 在方案（2) 中， 包含在第一配置信息中的功率偏移可以包括第一功率偏移 量和第二功率偏移量； 第一功率偏移量用于确定用户设备在蜂窝通信上行链路发送第 一探测参考信号的功率， 第二功率偏移量用于确定用户设备在设备到设备通信链路发 送第一探测参考信号的功率； 当发送第一探测参考信号的子帧是用户设备的设备到设 备通信发送子帧时， 用户设备以第二功率偏移量发送第一探测参考信号， 否则用户设 备以第一功率偏移量发送第一探测参考信号。 在方案（3) 中， 可以进一步包括： 用户设备按照第二配置信息的配置在满足第一 条件的子帧中发送第二探测参考信号， 按照第二配置信息的配置在满足第二条件的子 帧中检测第二探测参考信号； 满足第一条件的子帧和满足第二条件的子帧包括以下方 式之一： 方式一、 满足第一条件的子帧是用户设备的设备到设备通信发送子帧， 满足第二 条件的子帧是用户设备的设备到设备通信接收子帧； 方式二、 满足第一条件的子帧是小区专用探测参考信号子帧， 并且是用户设备的 设备到设备通信发送子帧； 满足第二条件的子帧是小区专用探测参考信号子帧， 并且 是用户设备的设备到设备通信接收子帧； 方式三、 满足第一条件的子帧是小区专用探测参考信号子帧， 并且是第二配置信 息指示的探测参考信号子帧， 并且是用户设备的设备到设备通信发送子帧； 满足第二 条件的子帧是小区专用探测参考信号子帧， 并且是第二配置信息指示的探测参考信号 子帧， 并且是用户设备的设备到设备通信接收子帧。 在方案（3) 中， 还可以进一步包括： 用户设备按照第二配置信息的配置在满足第 一条件的子帧中发送第二 SRS， 其中， 满足第一条件的子帧包括以下之一： 用户设备 在 D2D通信时的发送子帧； 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的发 送子帧； 小区专用 SRS的子帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备 在 D2D通信时的发送子帧。 在方案（3) 中， 还可以进一步包括： 用户设备按照第二配置信息的配置在满足第 二条件的子帧中检测第二 SRS， 其中， 满足第二条件的子帧包括以下之一： 用户设备 在 D2D通信时的接收子帧； 小区专用 SRS的子帧， 且为用户设备在 D2D通信时的接 收子帧； 小区专用 SRS的子帧， 且为第二配置信息指示的 SRS的子帧， 且为用户设备 在 D2D通信时的接收子帧。 在方案（3) 中， 优选地， 第二配置信息可以进一步包括触发信令， 当触发信令触 发用户设备发送第二探测参考信号时， 用户设备在第一个满足预设间隔和满足第一条 件的子帧中发送第二探测参考信号； 第二配置信息进一步包括触发信令， 当触发信令 触发用户设备检测第二探测参考信号时， 用户设备在第一个满足预设间隔和第二条件 的子帧中检测第二探测参考信号； 预设间隔是触发信令接收子帧与探测参考信号接收 或发送子帧的最小时间间隔。 其次， 提出了另一种参考信号的发送方法， 包括： 接收探测参考信号的配置信息集； 其中， 配置信息集至少包括第一配置信息和第 二配置信息； 第一配置信息指示第一探测参考信号的配置， 第二配置信息指示第二探 测参考信号的配置； 第一探测参考信号为蜂窝通信上行链路的探测参考信号， 用于用 户设备在进行蜂窝通信时的上行链路的信道测量； 第二探测参考信号为设备到设备通 信的探测参考信号， 用于用户设备在进行设备到设备通信时的设备到设备链路的信道
在方案（1 ) 中， 配置信息集还可以包括第三配置信息， 第三配置信息指示第三探 测参考信号的配置； 用户设备发送第一探测参考信号， 第一探测参考信号用于网络侧 设备进行蜂窝通信上行链路的信道测量； 用户设备接收第二探测参考信号， 第二探测 参考信号由与用户设备进行设备到设备通信的对端用户设备发送， 用于用户设备进行 设备到设备通信链路的信道测量； 用户设备发送第三探测参考信号， 第三探测参考信 号用于与用户设备进行设备到设备通信的对端用户设备进行设备到设备通信链路的信
在方案（2) 中， 可以是用户设备发送第一探测参考信号， 其中， 第一探测参考信 号用于网络侧设备进行蜂窝通信上行链路的信道测量和 /或与用户设备进行设备到设 备通信的对端用户设备进行设备到设备通信链路的信道测量； 用户设备接收第二探测 参考信号，第二探测参考信号由与用户设备进行设备到设备通信的对端用户设备发送， 用于用户设备进行设备到设备通信链路的信道测量。 在方案（3) 中， 可以是用户设备发送第一探测参考信号， 其中， 第一探测参考信 号用于网络侧设备进行蜂窝通信上行链路的信道测量； 用户设备发送第二探测参考信 号， 第二探测参考信号用于与用户设备进行设备到设备通信的对端用户设备进行设备 到设备通信链路的信道测量； 和 /或， 用户设备接收第二探测参考信号， 第二探测参考 信号由与用户设备进行设备到设备通信的对端用户设备发送， 用于用户设备进行设备 到设备通信链路的信道测量。 下面结合优选实施例和附图对上述实施例的实现过程进行详细说明。 实施例一 由于无线信道的时变与不可预测特性， 导致信道状态也处于时变的状态。 因此， 通过自适应编码调制 （Adaptive Modulation and Coding, 简称为 AMC) 实时进行数据 传输的码率和调制方式 （有些系统中称为调制编码方式， Modulation and Coding Scheme, 简称为 MCS ) 的调整， 可以明显改善无线通信系统的频谱效率。 在系统中应用自适应编码调制时， 如果有信道状态信息 （Channel State
Information , 简称为 CSI ) 作为传输 MCS 调整的依据， 可以获得更准确的调度 ( scheduling) , 因而可以更好地发挥自适应编码调制的性能优势。 而信道状态信息通 常需要通过对参考信号 （Reference Signal, RS， 也称为导频， pilot) 进行测量获得。 在蜂窝通信系统中引入 D2D通信时， 也会面临类似问题。 为了解决以上问题， 本实施例提出一种设备到设备 （D2D ) 通信方法， 包括： 将 探测参考信号的配置信息集发送给用户设备， 该配置信息集至少包括第一配置信息和 第二配置信息； 其中， 第一配置信息指示第一探测参考信号的配置， 第二配置信息指 示第二探测参考信号的配置；第一探测参考信号为蜂窝通信上行链路的探测参考信号， 用于该用户设备在进行蜂窝通信时的上行链路的信道测量； 第二探测参考信号为设备 到设备通信的探测参考信号， 用于该用户设备在进行设备到设备通信时的设备到设备 链路的信道测量； 第一探测参考信号和第二探测参考信号都在上行子帧中传输。 在本实施例中， 指示给 UE的探测参考信号配置信息至少有两组， 其中一组配置 信息， 即第一配置信息用于指示蜂窝通信时的上行链路的探测参考信号配置， 该探测 参考信号用于该用户设备在进行蜂窝通信时的上行链路测量； 另外一组配置信息， 即 第二配置信息用于指示设备到设备通信时的探测参考信号配置， 该探测参考信号用于 该用户设备在进行设备到设备通信时的设备到设备连路测量。 在实施过程中， 可以有如下三种传输方案： 方案一： 配置信息集还包括第三配置信息， 用于指示第三探测参考信号的配置。 并且， 第一探测参考信号由用户设备发送， 用于网络侧设备进行蜂窝通信时的上行链 路信道测量； 第二探测参考信号由用户设备发送， 用于与用户设备进行设备到设备通 信的对端用户设备进行设备到设备通信链路的信道测量； 第三参考信号由与用户设备 进行设备到设备通信的对端用户设备发送， 用于用户设备进行设备到设备通信链路的 信道测量。 方案二： 第一探测参考信号由用户设备发送， 用于网络侧设备进行蜂窝通信上行 链路的信道测量和 /或与用户设备进行设备到设备通信的对端用户设备进行设备到设 备通信链路的信道测量； 第二探测参考信号由与用户设备进行设备到设备通信的对端 用户设备发送， 用于用户设备进行设备到设备通信链路的信道测量。 也即， 用户设备 所发送的设备到设备通信探测参考信号， 与该用户设备所发送的蜂窝通信上行链路的 探测参考信号具有相同的配置。 方案三： 第一探测参考信号由用户设备发送， 用于网络侧设备进行蜂窝上行链路 的信道测量； 第二探测参考信号由用户设备发送， 用于与该用户设备进行设备到设备 通信的对端用户设备进行设备到设备通信链路的信道测量； 和 /或， 第二探测参考信号 由与该用户设备进行设备到设备通信的对端用户设备发送， 用于该用户设备进行设备 到设备通信链路的信道测量。 也即， 进行 D2D通信的用户设备具有相同的 D2D通信 探测参考信号配置， D2D通信两端 UE的探测参考信号的发送可通过时分的方式复用， 例如用户设备与对端用户设备都只在自身的 D2D 发送子帧中发送设备到设备通信探 测参考信号， 即第二参考信号。 实施例二 以下以 3GPP ( 3rd Generation Partnership Project) LTE (Long Term Evolution) /LTE-A (LTE- Advanced)蜂窝通信系统为背景进行说明。 LTE/LTE-A系统下行链路以 正交频分复用 ( Orthogonal Frequency Division Multiplexing, 简称为 OFDM)技术为基 础， 上行链路则采用单载频分复用接入 SC-FDMA ( Single carrier-Frequency Division Multiplexing Access) 多址方式。 在 OFDM/SC-FDMA系统中， 通信资源是时-频两维 的形式。 例如， 对于 LTE/LTE-A系统来说， 上行和下行链路的通信资源在时间方向上都是 以帧 （frame) 为单位划分。 图 7是根据本发明实施例二的 LTE/LTE-A系统无线帧的 结构示意图， 如图 7所示， 每个无线帧 （radio frame) 长度为 10 ms， 包含 10个长度 为 l ms的子帧 （sub-frame), 每个子帧又包括长度为 0.5ms的两个时隙 （slot)。 图 8是根据本发明实施例二的 LTE/LTE-A系统物理资源的结构示意图，如图 8所 示， 在频率方向， 资源以子载波 （subcarrier) 为单位划分， 具体在通信中， 频域资源 分配的最小单位是资源块（Resource Block, 简称为 RB)， 对应物理资源的一个物理资 源块（Physical RB， 简称为 PRB )。 一个 PRB在频域包含 12个子载波， 对应于时域的 一个时隙。每个 OFDM符号上对应一个子载波的资源称为资源单元（Resource Element, 简称 RE)。 在 LTE/LTE-A蜂窝通信系统中， 下行链路的测量主要基于小区专用参考信号（或 称为公共参考信号， Cell-specific Reference Signal, 简称为 CRS )和信道状态信息参考 信号（Channel State Information-Reference Signal, CSI-RS), 下行链路的数据传输基于 UE 反馈的 CRS 或 CSI-RS 的测量结果进行调度； 上行链路的测量一般基于 SRS (Sounding Reference Signal, 探测参考信号）， 上行链路的数据传输基于网络侧对 SRS 的测量结果进行调度。在 TDD系统中， 由于上行和下行链路使用相同的频带， 在进行 下行传输的调度时， 也可基于 SRS的测量结果。 即利用信道的互易性 （recipr0City)。 需要说明的是， 在本实施例中， 所描述的网络侧节点可以是 LTE/LTE-A系统的以 下网络节点之一： 基站 （evolved Node B， 简称为 eNB)、 中继节点 （Relay Node, 简 称为 RN)、 其他的低功率网络节点， 例如， pico， femto, Home eNB (HeNB) 等； 所 描述的用户设备可以是 LTE/LTE-A系统的以下设备之一： 用户设备（User Equipment, UE)、 媒体服务器 （media server ) 本地服务器 （local server ) 不具有独立的物理小 区标识的低功率网络节点等。 具体地， 以下通过几个实例进行进一步说明。 实例 1 : 图 9是根据本发明实例 1的 D2D通信的结构示意图， 如图 9所示， 在本实例中， D2D通信控制装置将 UE的探测参考信号 （Sounding Reference Signal, 简称为 SRS) 配置信息集发送给用户设备， 该配置信息集至少包括三部分： 第一配置信息、 第二配 置信息和第三配置信息。 其中， 第一配置信息指示第一探测参考信号的配置， 该第一探测参考信号由用户 设备发送， 用于该用户设备在进行蜂窝通信时的上行链路测量。 例如， 可以是 LTE/LTE-A蜂窝通信系统中上行链路的周期 SRS和 /或非周期 SRS。 上述第二配置信息指示第二探测参考信号的配置， 该第二探测参考信号由用户设 备发送，与该用户设备进行 D2D通信的对端用户设备检测该第二探测参考信号并基于 其测量用户设备到自身的设备到设备通信链路的信道状况。 第二探测参考信号可重用 LTE/LTE-A蜂窝通信系统中的 SRS设计， 不过与该用户设备自身的蜂窝通信的 SRS (即第一探测参考信号） 的配置可以不同， 这里"不同"是指具有不同的配置参数， 或 者配置参数的取值不同。 上述第三配置信息指示第三探测参考信号的配置， 该第三探测参考信号由与用户 设备进行设备到设备通信的对端用户设备发送， 用户设备检测该第三探测参考信号， 并基于其测量对端用户设备到自身的设备到设备通信链路的信道状况。 同样， 该第三 探测参考信号可重用 LTE/LTE-A蜂窝通信系统中 SRS的设计， 不过与前述的第一探 测参考信号及第二探测参考信号的配置可以不同， 这里"不同"是指具有不同的配置参 数， 或者配置参数的取值不同。 优选地， 本实例所描述的探测参考信号的配置信息可以是高层信令 （higher layer signaling), 例如是 UE专用的无线资源控制 （Radio Resource Control, 简称为 RRC) 信令， 该 RRC信令可包括如下信息中的一种或者多种： 探测参考信号的带宽配置、子 帧配置、 传输端口数、 传输带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输 梳、 序列循环移位、 功率偏移。 UE按照高层信令的配置发送和检测 D2D探测参考信 号。 例如， 第二配置信息可以包括如下的用户设备专用 （UE-specific) 或者设备到设 备专用 （D2D-specific)参数： 探测参考信号的传输天线端口数（srs-AntennaPort)、 传 输带宽 ( srs-Bandwidth)、频域位置 ( freqDomainPosition ) 传输梳 ( transmissionComb ) 循环移位 （cyclicShift)、 配置索引 （srs-ConfigIndex)、 功率偏移 （pSRS-Offset)。 而带 宽配置 （srs-BandwidthConfig ) 和子帧配置 （ srs-SubframeConfig ) 可重用探测参考信 号的公共配置信息 （即 SRS小区专用参数）。 进一步地， 各参数的含义与 LTE/LTE-A 规范中的定义相同， 不再赘述。 例如， 第三配置信息包含的参数可与第二配置信息相同， 不再赘述。 进一步地， 当 UE按照高层信令的配置发送和检测 D2D探测参考信号时， UE只 在 D2D发送子帧中发送 D2D探测参考信号， 只在 D2D接收子帧中接收 D2D探测参 考信号。 例如， 上述的高层信令配置了 UE发送 D2D通信探测参考信号 （即第二探测 参考信号） 的子帧位置， 但是只有当所述子帧是 UE的 D2D发送子帧时， UE才发送 D2D探测参考信号； 同样， 只有当高层信令配置的 UE的探测参考信号子帧是该 UE 的 D2D接收子帧时， UE才接收 D2D探测参考信号。 这样可避免 UE在非 D2D发送 或接收时隙发送或者接收 D2D探测参考信号， 避免 D2D通信对蜂窝通信产生影响。 比如， UE可以通过如下 3种方式来确定发送 D2D探测参考信号的子帧位置： 方式一、 由 D2D发送子帧、 小区专用 SRS子帧和 UE专用 SRS子帧共同确定。 图 10是根据本发明实例 1的 UE确定发送 D2D探测参考信号的子帧位置的示意图一， 其中，小区专用（cell-specific)的 SRS配置中的 SRS子帧配置参数（srs-SubframeConfig) 指示小区级的 SRS子帧如图 10中 Ξ所示 （即 srs-SubframeConfig配置为 2)， 第二配 置信息中的探测参考信号配置索引参数 （srs-Configlndex) 指示的 UE专用的 SRS子 帧如图 10中的 CD所示（即 srs-Configlndex配置为 3)， 即 Ξ和 CD重合的子帧位置可 以作为配置给该 UE的第二探测参考信号子帧位置。 但是， 只有当 UE的第二探测参 考信号子帧是其 D2D发送子帧时， UE才发送 D2D探测参考信号（即第二探测参考信 号）， 即图 10中的 II子帧。对于 UE检测 D2D探测参考信号（即第三探测参考信号）， 可类似处理， 不再赘述。 另外， 图中的数字为子帧索引 （下同）。 方式二、 由 D2D发送子帧和小区 SRS子帧确定。 图 11是根据本发明实例 1 的
UE确定发送 D2D探测参考信号的子帧位置的示意图二，其中，小区专用（cell-specific) 的 SRS配置中的 SRS子帧配置参数 （srs-SubframeConfig) 指示小区级的 SRS子帧如 图 11中§所示 （即 srs-SubframeConfig配置为 2)。 第二配置信息不会限定第二探测 参考信号的传输子帧， 而是约定， 当小区级的 SRS子帧是 UE的 D2D发送子帧时， UE在该子帧中按照第二探测参考信号的指示发送 D2D探测参考信号 （即第二探测参 考信号）， 即图 11中的 11子帧。 对于 UE检测 D2D探测参考信号 （即第三探测参考 信号）， 可类似处理， 不再赘述。 方式三、 由 D2D发送子帧确定。 图 12是根据本发明实例 1的 UE确定发送 D2D 探测参考信号的子帧位置的示意图三， 如图 12所示， 当 UE按照高层信令的配置发送 和检测 D2D探测参考信号时， 该高层信令不会限定 UE发送和检测探测参考信号的时 域位置 （子帧位置）， 而是约定， 当 UE有 D2D业务发送时， 即按照高层信令的配置 发送 D2D探测参考信号；当 UE有 D2D业务接收时，即按照高层信令的配置检测 D2D 探测参考信号， 进一步降低实施的复杂度。 方式四、 由 D2D发送子帧和 UE专用 SRS子帧共同确定， 其中， 第二配置信息中 的探测参考信号配置索引参数 （srs-Configlndex) 指示的 UE专用的 SRS子帧。 即当 某个子帧既是 UE的 D2D发送子帧又是 UE专用 SRS子帧时， 该子帧即是该 UE的第 二探测参考信号的发送子帧。对于 UE检测 D2D探测参考信号（即第三探测参考信号）， 可类似处理， 即由 UE的 D2D接收子帧和第三配置信息确定， 不再赘述。 方式五、 由 UE专用 SRS子帧确定， 其中， 第二配置信息中的探测参考信号配置 索引参数 （srs-Configlndex) 指示的 UE专用的 SRS子帧。 即第二配置信息所指示的 UE专用 SRS子帧即是该 UE的第二探测参考信号的发送子帧。 对于 UE检测 D2D探 测参考信号 （即第三探测参考信号）， 可类似处理， 即由 UE的第三配置信息确定， 不 再赘述。 方式六、 小区专用 SRS 子帧和 UE专用 SRS 子帧共同确定， 其中， 小区专用 (cell-specific)的 SRS配置中的 SRS子帧配置参数（srs-SubframeConfig)指示小区级 的 SRS子帧， 第二配置信息中的探测参考信号配置索引参数 （srs-Configlndex) 指示 的 UE专用的 SRS子帧，即该小区专用 SRS子帧和该 UE专用 SRS子帧重合的子帧可 以作为配置给该 UE的第二探测参考信号子帧， UE在该探测参考信号子帧中发送 D2D 探测参考信号 （即第二探测参考信号）。 对于 UE检测 D2D探测参考信号 （即第三探 测参考信号）， 可类似处理， 不再赘述。 优选地， 探测参考信号的配置信息可以包括高层信令和物理层信令。 其中， 高层 信令用于指示探测参考信号的配置， 例如， 通过 RRC信令指示参考信号的配置， 具体 包括的参数如前所述。 而发送和接收 D2D探测参考信号可通过物理层信令动态触发， 例如， 在 D2D通信的授权信息中设置 D2D通信探测参考信号的触发信令， 该触发信 令用于触发 UE发送 D2D探测参考信号， 即前述的第二探测参考信号， 或者触发 UE 检测 D2D探测参考信号， 即前述的第三探测参考信号。 比如， 触发信令为 1比特， 位于调度 UE进行 D2D发送的授权信息中， 该 1比特 置为 " 时， 用于表示 UE发送 D2D探测参考信号被触发； 或者， 触发信令为 1比特， 位于调度 UE进行 D2D接收的授权信息中，该 1比特触发信令置为 " 时表示 UE检测 D2D探测参考信号被触发。 或者， 触发信令为 1比特， 位于调度 UE进行 D2D通信的 授权信息中， 该 1比特触发信令置为 " 表示 D2D发送 UE发送 D2D探测参考信号和 D2D接收 UE接收 D2D探测参考信号被触发。采用高层信令和物理层信令结合的方式， 可以保证 D2D通信时探测参考信号发送和接收的灵活性，并且避免不必要的探测参考 信号的发送和测量， 节省 UE耗电。 进一步地， UE接收到上述触发信令后， 可以在满足一定时间间隔的第一个 D2D 发送子帧中发送第二探测参考信号，或者在满足一定间隔的第一个 D2D接收子帧中检 测第三探测参考信号； 或者， UE接收到上述触发信令后， 可以在满足一定时间间隔的 第一个既是 D2D发送子帧又是探测参考信号子帧的子帧发送第二探测参考信号，或者 在满足一定时间间隔的第一个既是 D2D 发送子帧又是探测参考信号子帧的子帧检测 第三探测参考信号。 进一步地， 上述的一定时间间隔可以是 4毫秒 （mile-second, 简 写为 ms)， 在 LTE/LTE-A系统中即为 4个子帧。 实例 2: 图 13是根据本发明实例 2的 D2D通信的结构示意图，如图 13所示，在本实例中， D2D通信的控制装置将 UE的探测参考信号配置信息集发送给 UE。 该配置信息集包 括两部分： 第一配置信息和第二配置信息。 其中， 第一配置信息指示第一探测参考信号的配置， 该第一探测参考信号同时用 于蜂窝通信上行链路的测量， 以及设备到设备通信的信道测量， 由该 UE发送。 即对 于进行 D2D通信的 UE来说， 其所发送的设备到设备通信的测量参考信号重用其蜂窝 通信上行链路的探测参考信号的配置，例如 LTE/LTE-A蜂窝通信系统中上行链路的周 期 SRS和 /或非周期 SRS。当 UE发送的第一探测参考信号用于设备到设备通信链路的 信道测量时， 与 UE进行 D2D通信的对端 UE接收该第一探测参考信号并基于此测量 UE到对端 UE的设备到设备通信链路。 第二配置信息指示第二探测参考信号的配置， 该第二探测参考信号用于设备到设 备通信的信道测量， 由与该 UE进行 D2D通信的对端 UE发送， UE接收该第二探测 参考信号， 并基于此测量对端 UE到该 UE的设备到设备通信链路的信道状况。 由前 述的描述， 该第二探测参考信号与对端 UE的第一探测参考信号的配置相同， 即第二 探测参考信号重用对端 UE蜂窝通信上行链路的探测参考信号的配置，或者换句话说， 在 D2D通信信道测量时，需要将 D2D UE的蜂窝上行链路的探测参考信号指示给 D2D 通信对方 UE， 以实现重用该蜂窝上行链路探测参考信号进行 D2D通信信道测量的目 的。 优选地， 本实例所描述的参考信号的配置信息可以是高层信令 （higher layer signaling), 例如是 UE专用的无线资源控制 （Radio Resource Control, 简称为 RRC) 信令， 该 RRC信令可包括如下信息中的一种或者多种： 探测参考信号的带宽配置、子 帧配置、 传输端口数、 传输带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输 梳、 序列循环移位、 功率偏移。 UE按照高层信令的配置发送和检测 D2D探测参考信 号。 进一步地， 当 UE按照高层信令的配置发送第一探测参考信号时， 无需区分传输 参考信号的子帧类型， 即无需区分传输参考信号的子帧是普通子帧还是设备到设备通 信子帧。 不过， 配置给 UE的探测参考信号的功率偏移参数可以有两个， 一个功率偏 移参数用于确定蜂窝通信上行链路的探测参考信号发送功率， 一个功率偏移参数用于 确定设备到设备通信的探测参考信号发送功率。 当 UE按照高层信令的配置接收第二 探测参考信号时， 可以只在设备到设备通信接收子帧中接收第二探测参考信号。 比如， 可由 D2D发送子帧、 小区 SRS子帧和 UE SRS子帧共同确定 D2D探测参 考信号的发送子帧位置。 图 14是根据本发明实例 2的 UE确定发送 D2D探测参考信 号的子帧位置的示意图， 其中， 小区专用 （cell-specific) 的 SRS配置中的 SRS子帧配 置参数 （ srs-SubframeConfig ) 指示小区级的 SRS 子帧， 如图 14 中§所示 （即 srs-SubframeConfig 配置为 2 )， 第一配置信息中的探测参考信号配置索引参数 ( srs-Configlndex)指示的 UE专用的 SRS子帧如图 14中的 Ώ所示（即 srs-Configlndex 配置为 3)， 即 Ξ和 El重合的子帧位置即为配置给该 UE的第一探测参考信号子帧位 置。 UE在第一探测参考信号子帧发送第一探测参考信号时，在不同链路可能使用不同 的功率偏移， 例如， 当 UE的第一探测参考信号子帧用于上行蜂窝链路时， 使用第一 功率偏移量发送第一探 S 考信号， 如图 14中的 1所示； 当 UE的第一探测参考信 号子帧用于 D2D链路时，使用第二功率偏移量发送第一探测参考信号，如图 14中的 11 子帧所示。 对于 UE检测 D2D探测参考信号即第二探测参考信号， 可类似处理， 即 UE以第 二配置信息所指示的功率偏移量， 在小区公共 SRS子帧、第二配置信息所指示的 SRS 子帧、 以及 UE的 D2D接收子帧重合的子帧中检测第二探测参考信号， 不再赘述。 优选地， 参考信号的配置信息可以包括高层信令和物理层信令。 其中， 高层信令 用于指示参考信号的配置， 例如， 通过 UE专用 RRC信令指示参考信号的配置， 具体 包括的参数如前所述。 而发送和接收第一探测参考信号和第二探测参考信号可通过物 理层信令动态触发， 例如， 在授权信息中设置探测参考信号的触发信令， 该触发信令 用于触发 UE发送探测参考信号， 即前述的第一探测参考信号， 或者触发 UE接收探 测参考信号， 即前述的第二探测参考信号。 比如，触发信令为 1比特，位于调度 UE发送的授权信息中， 该 1比特置为" 1 "时， 用于表示 UE发送探测参考信号， 置为 "0"时表示 UE不采取与探测参考信号相关的行 动； 或者， 触发信令为 1比特， 位于调度 UE接收的授权信息中， 该 1比特触发信令 置为 " 时表示 UE检测探测参考信号，置为 "0"表示 UE不采取与探测参考信号相关的 行动。 或者， 触发信令为 1比特， 位于调度 UE进行 D2D通信的授权信息中， 该 1比 特触发信令置为 " 表示 D2D发送 UE发送 D2D探测参考信号， D2D接收 UE接收 D2D探测参考信号， 置为 "0"表示 D2D UE不采取与 D2D探测参考信号相关的行动。 采用高层信令和物理层信令结合的方式，可以保证 D2D通信时探测参考信号发送和接 收的灵活性， 并且避免不必要的探测参考信号的发送和测量， 节省 UE耗电。 进一步地， UE发送第一探测参考信号可不区分子帧类型， 即不区分是蜂窝通信子 帧还是 D2D通信的发送子帧， 收到触发信令后， 在第一个满足发送条件的子帧中发送 第一探测参考信号。 或者 UE发送第一探测参考信号也可区分子帧类型， 即收到的触 发信令位于调度蜂窝通信的授权信息中时， UE在第一个满足蜂窝上行链路探测参考信 号发送条件的蜂窝通信子帧中发送第一探测参考信号； 收到的触发信令位于调度设备 到设备通信的授权信息中时， UE在第一个满足设备到设备通信链路探测参考信号发送 条件的设备到设备通信子帧中发送第一探测参考信号。 UE接收第二探测参考信号可以 区分子帧类型， 即收到的触发信令位于调度设备到设备通信接收的授权信息中时， UE 在第一个满足设备到设备通信链路探测参考信号接收条件的设备到设备接收子帧中接 收第二探测参考信号。 另外， 上述的发送条件和 /或接收条件可以是， 上述的子帧是网 络侧配置的探测参考信号子帧， 并且是与上述触发信令发送子帧的间隔大于等于 4ms 的第一个探测参考信号子帧。 实例 3: 图 15是根据本发明实例 3的 D2D通信的结构示意， 如图 15所示， 在本实例中， D2D通信的控制装置将 UE的探测参考信号配置信息集发送给 UE。 该配置信息集包 括两部分： 第一配置信息和第二配置信息。 其中， 第一配置信息指示第一探测参考信 号的配置，该第一探测参考信号用于蜂窝通信上行链路的测量，例如可以是 LTE/LTE-A 蜂窝通信系统中上行链路的周期和 /或非周期 SRS。 第二配置信息指示第二探测参考信号的配置， 该第二探测参考信号用于设备到设 备通信的信道测量， 由该 UE在 D2D通信时接收和 /或发送， 即与该 UE进行 D2D通 信的对端 UE具有相同的第二参考信号配置， 或者说， 正在进行 D2D通信的两个 UE 具有相同的第二探测参考信号配置。该第二探测参考信号的设计可重用 LTE/LTE-A蜂 窝通信系统中的 SRS， 不过可以与该 UE自身的蜂窝通信的 SRS， 即第一探测参考信 号的配置不同。 优选地， 本实例所描述的参考信号的配置信息可以是高层信令 （higher layer signaling), 例如是 UE专用无线资源控制 （Radio Resource Control, 简称为 RRC) 信 令， 该 RRC信令可包括如下信息中的一种或者多种： 探测参考信号的带宽配置、子帧 配置、 传输端口数、 传输带宽、 跳频带宽、 频域位置、 持续时间、 配置索引、 传输梳、 序列循环移位， 功率偏移。 UE按照高层信令的配置发送和检测 D2D探测参考信号。 进一步地， 当 UE按照高层信令的配置发送和检测 D2D探测参考信号时， UE只 在 D2D发送子帧中发送 D2D探测参考信号， 只在 D2D接收子帧中接收 D2D探测参 考信号。例如，上述的高层信令配置了 UE发送 D2D探测参考信号（即第二参考信号） 的子帧配置， 但是只有当该子帧是 UE的 D2D发送子帧时， UE才发送 D2D探测参考 信号； 同样， 只有当高层信令配置的 D2D探测参考信号接收子帧是该 UE的 D2D接 收子帧时， UE才接收 D2D探测参考信号。 这样可避免 UE在非 D2D发送或接收时隙 发送或者接收 D2D探测参考信号， 避免 D2D通信对蜂窝通信产生影响。 比如， UE可以通过如下几种方式来确定发送 D2D探测参考信号的子帧位置: 方式一、 由 D2D发送子帧、 小区专用 SRS子帧和 UE专用 SRS子帧共同确定。 图 16是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意图一， 其中，小区专用（cell-specific)的 SRS配置中的 SRS子帧配置参数（srs-SubframeConfig ) 指示小区级的 SRS子帧如图 16中 Ξ所示 （即 srs-SubframeConfig配置为 6)， 第二配 置信息中的探测参考信号配置索引参数 （srs-Configlndex ) 指示的 UE专用的 SRS子 帧如图 16中的 El所示 （即 srs-Configlndex配置为 10)， 即 Ξ和 CD重合的子帧位置 可以作为该 UE的第二探测参考信号子帧。 但是， 只有当 UE的第二探测参考信号子 帧是其 D2D发送子帧时， UE才发送 D2D探测参考信号 （即第二探测参考信号）， 即 图 16中的 11子帧。 对于 UE检测 D2D对端 UE发送的探测参考信号 （即第二探测参 考信号）， 可类似处理， 不再赘述。 方式二、 由 D2D发送 /接收子帧和小区 SRS子帧确定。 图 17是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图二， 如图 17所示， ^所示为 UE的 D2D发送子帧， Ξ为小区专用的 SRS子帧。 第二配置信息中不会指示 UE专用的 SRS子帧。而是约定， 当 UE的 D2D发送子帧同 时是小区专用的 SRS子帧时， UE按照第二配置信息的配置发送第二探测参考信号。 图 18是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意图三， 同理， 如图 18所示， 当 UE的 D2D接收子帧同时是小区专用 SRS子帧时， UE按照 第二配置信息的配置检测 D2D对端 UE所发送的第二探测参考信号。 或者为简单起见， D2D链路的探测参考信号即第二探测参考信号可不遵循小区专 用的 SRS子帧配置， 而是约定， UE在 D2D发送子帧中按照第二配置信息的配置发送 第二探测参考信号； UE在 D2D接收子帧中按照第二配置信息的配置检测第二探测参 考信号； 或者约定， 当 UE有 D2D业务发送时， 即按照第二配置信息的配置发送 D2D 探测参考信号； 当 UE有 D2D业务接收时， 即按照第二配置信息的配置接收 D2D探 测参考信号， 进一步降低实施的复杂度。 不再赘述。 优选地， 探测参考信号的配置信息可以包括高层信令和物理层信令。 其中， 高层 信令用于指示参考信号的配置，例如通过专用 RRC信令指示参考信号的配置， 具体包 括的参数如前所述。而发送和接收 D2D探测参考信号可通过物理层信令动态触发， 例 如在 D2D通信的授权信息中设置 D2D通信探测参考信号的触发信令， 该触发信令用 于触发 UE发送或接收 D2D探测参考信号， 即前述的第二探测参考信号。 比如， 触发信令为 1比特， 位于调度 UE进行 D2D发送的授权信息中， 该 1比特 置为 " 时， 用于表示 UE发送 D2D探测参考信号， 置为 "0"时表示 UE不采取与 D2D 探测参考信号相关的行动； 或者， 触发信令为 1比特， 位于调度 UE进行 D2D接收的 授权信息中， 该 1比特触发信令置为 " 时表示 UE接收 D2D探测参考信号， 置为 "0" 表示 UE不采取与 D2D探测参考信号相关的行动。 或者， 触发信令为 1比特， 位于调 度 UE进行 D2D通信的授权信息中， 该 1比特触发信令置为" 1 "表示 D2D发送 UE发 送 D2D探测参考信号， D2D接收 UE接收 D2D探测参考信号， 置为 "0"表示 D2D UE 不采取与 D2D探测参考信号相关的行动。采用高层信令和物理层信令结合的方式， 可 以保证 D2D通信时探测参考信号发送和接收的灵活性，并且避免不必要的探测参考信 号的发送和测量， 节省 UE耗电。 进一步地， UE接收到上述触发信令后， 可以在满足一定间隔的第一个 D2D发送 子帧中发送第二探测参考信号，或者在满足一定间隔的第一个 D2D接收子帧中接收第 二探测参考信号； 或者， UE接收到上述触发信令后， 可以在满足一定间隔的第一个既 是 D2D发送子帧也是探测参考信号子帧的子帧发送第二探测参考信号。进一步地， 上 述的一定间隔可以是 4毫秒 （mile-second, 简写为 ms)， 在 LTE/LTE-A系统中即为 4 个子帧。 这里的 4ms只是举例， 并不构成限制， 理论上可以是任意整数。 例如， UE接收到上述触发信令后， 可以在满足一定间隔的第一个发送 D2D探测 参考信号子帧中发送第二探测参考信号，其中发送 D2D探测参考信号子帧的确定如前 述； 同理， UE接收到触发信令后， 可以在满足一定间隔的第一个接收 D2D探测参考 信号子帧中接收第二探测参考信号。 进一步地， 上述的一定间隔可以是 4 毫秒 (mile-second, 简写为 ms)， 在 LTE/LTE-A系统中即为 4个子帧。 这里的 4ms只是举 例， 并不构成限制， 理论上可以是任意整数。 图 19是根据本发明实例 3的 UE确定发送 D2D探测参考信号的子帧位置的示意 图四， 如图 19所示， Ξ所示为 UE的 D2D发送子帧， Ξ为小区专用的 SRS子帧。 第二配置信息中不会指示 UE专用的 SRS子帧。 假设触发 UE发送第二探测参考信号 的信令位于调度 UE进行 D2D发送的授权信息中， 并且授权传输时序为 4， 即 UE在 D2D发送子帧 1发送 D2D业务的授权信息在前一个无线帧的子帧 7传输， 那么当该 授权信息的触发信令被设置为触发 UE发送第二探测参考信号时， UE在 D2D发送子 帧 1中发送 D2D探测参考信号。 对于 UE检测第二探测参考信号的处理同理， 不再赘 述。 综上所述，上述实施例提供了一种支持 D2D通信的蜂窝系统中的参考信号发送方 法和装置， 采用网络侧节点向用户终端发送的 SRS配置信息集的方式， 指示用户设备 在蜂窝通信和 D2D通信时用于信道测量的 SRS,解决了相关技术中在蜂窝系统中引入 D2D通信时如何进行业务传输的调度的问题， 实现了 D2D通信与蜂窝通信的兼容， 提高了系统的性能。 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以用通用 的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多个计算装置所 组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码来实现， 从而可以将 它们存储在存储装置中由计算装置来执行，或者将它们分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。 这样， 本发明不限 制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领域的技 术人员来说， 本发明可以有各种更改和变化。 凡在本发明的精神和原则之内， 所作的 任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之内。

Claims

权 利 要 求 书
1. 一种探测参考信号 SRS的传输方法， 包括以下步骤：
网络侧节点向用户设备发送 SRS配置信息集， 其中， 所述 SRS配置信息 集包括： 用于指示第一 SRS配置的第一配置信息和用于指示第二 SRS配置的 第二配置信息；
其中， 所述第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 所述第二 SRS在设备到设备 D2D通信链路传输， 用于 D2D通信 时 D2D链路的信道测量。
2. 根据权利要求 1所述的方法，其中，所述第二 SRS为所述用户设备在所述 D2D 通信时向对端用户设备发送的 SRS， 所述 SRS配置信息集还包括： 用于指示第 三 SRS配置的第三配置信息， 所述第三 SRS为所述用户设备在所述 D2D通信 时检测的所述对端用户设备发送的 SRS， 用于所述 D2D通信时 D2D链路的信
3. 根据权利要求 2所述的方法， 其中， 所述第一配置信息、 所述第二配置信息和 所述第三配置信息均包括： 高层配置信令， 所述高层配置信令包括以下参数至 少之一： 探测参考信号的带宽配置、 子帧配置、 传输端口数、 传输带宽、 跳频 带宽、 频域位置、 持续时间、 配置索引、 传输梳、 序列循环移位、 功率偏移。
4. 根据权利要求 2所述的方法， 其中， 所述用户设备按照所述第二配置信息的配 置在满足第一条件的子帧中发送所述第二 SRS, 按照所述第三配置信息的配置 在满足第二条件的子帧中检测所述第三 SRS, 其中， 满足所述第一条件的子帧 和满足所述第二条件的子帧包括以下之一：
满足所述第一条件的子帧为所述用户设备在所述 D2D通信时的发送子帧， 满足所述第二条件的子帧为所述用户设备在所述 D2D通信时的接收子帧； 满足所述第一条件的子帧为小区专用 SRS的子帧，且为所述用户设备在所 述 D2D通信时的发送子帧，满足所述第二条件的子帧为小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧；
满足所述第一条件的子帧为小区专用 SRS的子帧，且为所述第二配置信息 指示的 SRS的子帧， 且为所述用户设备在所述 D2D通信时的发送子帧， 满足 所述第二条件的子帧为小区专用 SRS 的子帧， 且为所述第三配置信息指示的 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧。
5. 根据权利要求 2所述的方法， 其特征在于， 所述用户设备按照所述第二配置信 息的配置在满足第一条件的子帧中发送所述第二 SRS, 其中， 满足所述第一条 件的子帧包括以下之一：
所述用户设备在所述 D2D通信时的发送子帧；
小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的发送子帧; 小区专用 SRS的子帧， 且为所述第二配置信息指示的 SRS的子帧， 且为 所述用户设备在所述 D2D通信时的发送子帧；
所述第二配置信息指示的 SRS的子帧， 且为所述用户设备在所述 D2D通 信时的发送子帧；
所述第二配置信息指示的 SRS的子帧；
小区专用 SRS的子帧， 且为所述第二配置信息指示的 SRS的子帧。
6. 根据权利要求 2所述的方法， 其特征在于， 所述用户设备按照所述第三配置信 息的配置在满足第二条件的子帧中检测所述第三 SRS, 其中， 满足所述第二条 件的子帧包括以下之一：
所述用户设备在所述 D2D通信时的接收子帧；
小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧； 小区专用 SRS的子帧， 且为所述第三配置信息指示的 SRS的子帧， 且为 所述用户设备在所述 D2D通信时的接收子帧；
所述第三配置信息指示的 SRS的子帧， 且为所述用户设备在所述 D2D通 信时的接收子帧；
所述第三配置信息指示的 SRS的子帧；
小区专用 SRS的子帧， 且为所述第三配置信息指示的 SRS的子帧。
7. 根据权利要求 4至 6任一项所述的方法， 其中， 所述第二配置信息中包括用于 触发所述用户设备发送所述第二 SRS的第一触发信令，所述第三配置信息中包 括用于触发所述用户设备检测所述第三 SRS的第二触发信令，所述网络侧节点 向所述用户设备发送所述 SRS配置信息集之后， 所述方法还包括： 所述用户设备在接收到所述第一触发信令时， 在第一个符合第一预设间隔 的满足所述第一条件的子帧中发送所述第二 SRS;
所述用户设备在接收到所述第二触发信令时， 在第一个符合第二预设间隔 的满足所述第二条件的子帧中检测所述第三 SRS;
其中， 所述第一预设间隔为所述第一触发信令的接收子帧与所述第二 SRS 的发送子帧的最小时间间隔， 所述第二预设间隔为所述第二触发信令的接收子 帧与所述第三 SRS的接收子帧的最小时间间隔。
8. 根据权利要求 1所述的方法， 其中， 所述第一 SRS还用于所述用户设备在所述 D2D通信时向对端用户设备发送， 用于所述对端用户设备进行 D2D链路的信 道测量； 所述第二 SRS由所述对端用户设备在所述 D2D通信时发送， 用于所 述用户设备在所述 D2D通信时进行 D2D链路的信道测量。
9. 根据权利要求 8所述的方法， 其中， 所述用户设备按照所述第一配置信息的配 置在满足第一条件的子帧中发送所述第一 SRS, 按照所述第二配置信息的配置 在满足第二条件的子帧中检测所述第二 SRS， 其中， 满足所述第一条件的子帧 为所述第一配置信息指示的 SRS的子帧，满足所述第二条件的子帧为所述第二 配置信息指示的 SRS的子帧，且满足所述第一条件的子帧和满足所述第二条件 的子帧均为小区专用 SRS子帧。
10. 根据权利要求 9所述的方法， 其中， 所述第一配置信息中包括用于触发所述用 户设备发送所述第一 SRS的第一触发信令，所述第二配置信息中包括用于触发 所述用户设备检测所述第二 SRS的第二触发信令，所述网络侧节点向所述用户 设备发送所述 SRS配置信息集之后， 所述方法还包括：
所述用户设备在接收到所述第一触发信令时， 在第一个符合第一预设间隔 的满足所述第一条件的子帧中发送所述第一 SRS;
所述用户设备在接收到所述第二触发信令时， 在第一个符合第二预设间隔 的满足所述第二条件的子帧中检测所述第二 SRS;
其中， 所述第一预设间隔为所述第一触发信令的接收子帧与所述第一 SRS 的发送子帧的最小时间间隔， 所述第二预设间隔为所述第二触发信令的接收子 帧与所述第二 SRS的接收子帧的最小时间间隔。
11. 根据权利要求 8所述的方法， 其中， 所述第一配置信息中包括功率偏移参数， 所述功率偏移参数包括第一功率偏移量和第二功率偏移量， 其中， 所述第一功 率偏移量用于确定所述用户设备在所述蜂窝通信系统中上行链路发送所述第一 SRS的功率，所述第二功率偏移量用于确定所述用户设备在所述 D2D通信链路 发送所述第一 SRS的功率， 所述网络侧节点向所述用户设备发送所述 SRS配 置信息集之后， 所述方法还包括：
如果发送所述第一 SRS的子帧为所述用户设备的 D2D通信发送子帧， 则 所述用户设备以所述第二功率偏移量发送所述第一 SRS， 否则， 所述用户设备 以所述第一功率偏移量发送所述第一 SRS。
12. 根据权利要求 1所述的方法，其中，所述第二 SRS为所述用户设备在所述 D2D 通信时向对端用户设备发送的 SRS,用于所述对端用户设备进行 D2D通信的信 道测量，以及所述用户设备在所述 D2D通信时检测的所述对端用户设备发送的 SRS, 用于所述用户设备进行 D2D通信的信道测量。
13. 根据权利要求 8或 12所述的方法， 其中， 所述第一配置信息和 /或所述第二配 置信息包括： 高层配置信令， 所述高层配置信令包括以下参数至少之一： 探测 参考信号的带宽配置、 子帧配置、 传输端口数、 传输带宽、 跳频带宽、 频域位 置、 持续时间、 配置索引、 传输梳、 序列循环移位、 功率偏移。
14. 根据权利要求 12所述的方法，其中，所述用户设备按照所述第二配置信息的配 置在满足第一条件的子帧中发送所述第二 SRS, 按照所述第二配置信息的配置 在满足第二条件的子帧中检测所述第二 SRS， 其中， 满足所述第一条件的子帧 和满足所述第二条件的子帧包括以下之一：
满足所述第一条件的子帧为所述用户设备在所述 D2D通信时的发送子帧， 满足所述第二条件的子帧为所述用户设备在所述 D2D通信时的接收子帧； 满足所述第一条件的子帧为小区专用 SRS的子帧，且为所述用户设备在所 述 D2D通信时的发送子帧，满足所述第二条件的子帧为小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧；
满足所述第一条件的子帧为小区专用 SRS的子帧，且为所述第二配置信息 指示的 SRS的子帧， 且为所述用户设备在所述 D2D通信时的发送子帧， 满足 所述第二条件的子帧为小区专用 SRS 的子帧， 且为所述第二配置信息指示的 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧。
15. 根据权利要求 12所述的方法，其特征在于，所述用户设备按照所述第二配置信 息的配置在满足第一条件的子帧中发送所述第二 SRS, 其中， 满足所述第一条 件的子帧包括以下之一： 所述用户设备在所述 D2D通信时的发送子帧；
小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的发送子帧; 小区专用 SRS的子帧， 且为所述第二配置信息指示的 SRS的子帧， 且为 所述用户设备在所述 D2D通信时的发送子帧。
16. 根据权利要求 12所述的方法，其特征在于，所述用户设备按照所述第二配置信 息的配置在满足第二条件的子帧中检测所述第二 SRS， 其中， 满足所述第二条 件的子帧包括以下之一：
所述用户设备在所述 D2D通信时的接收子帧；
小区专用 SRS的子帧， 且为所述用户设备在所述 D2D通信时的接收子帧； 小区专用 SRS的子帧， 且为所述第二配置信息指示的 SRS的子帧， 且为 所述用户设备在所述 D2D通信时的接收子帧。
17. 根据权利要求 14至 16中任一项所述的方法， 其中， 所述第二配置信息中包括 用于触发所述用户设备发送所述第二 SRS的第一触发信令和用于触发所述用户 设备检测所述第二 SRS的第二触发信令，所述网络侧节点向所述用户设备发送 所述 SRS配置信息集之后， 所述方法还包括：
所述用户设备在接收到所述第一触发信令时， 在第一个符合第一预设间隔 的满足所述第一条件的子帧中发送所述第二 SRS;
所述用户设备在接收到所述第二触发信令时， 在第一个符合第二预设间隔 的满足所述第二条件的子帧中检测所述第二 SRS;
其中， 所述第一预设间隔为所述第一触发信令的接收子帧与所述第二 SRS 的发送子帧的最小时间间隔， 所述第二预设间隔为所述第二触发信令的接收子 帧与所述第二 SRS的接收子帧的最小时间间隔。
18. 根据权利要求 1所述的方法， 其中， 所述网络侧节点向所述用户设备发送所述 SRS配置信息集之后， 还包括：
所述用户设备根据所述第一配置信息向所述网络侧节点发送所述第一 SRS, 以用于所述蜂窝系统中上行链路的信道测量， 或者根据所述第一配置信 息在所述 D2D通信时向对端用户设备发送所述第一 SRS， 以用于 D2D链路的 信道测量； 和 /或， 所述用户设备根据所述第二配置信息在所述 D2D 通信时向对端用户设备 发送所述第二 SRS 或者检测来自所述对端用户设备的所述第二 SRS， 以用于 D2D链路的信道测量。
19. 一种探测参考信号 SRS的传输方法， 包括以下步骤：
用户设备接收来自网络侧节点的用于指示 SRS配置的 SRS配置信息集， 其中， 所述 SRS配置信息集包括： 用于指示第一 SRS配置的第一配置信息和 用于指示第二 SRS配置的第二配置信息；
其中， 所述第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 所述第二 SRS在 D2D通信链路传输， 用于 D2D通信时 D2D链 路的信道测量。
20. 根据权利要求 19所述的方法，其中，所述第二 SRS为所述用户设备在所述 D2D 通信时向对端用户设备发送的 SRS， 所述 SRS配置信息集中还包括： 用于指示 第三 SRS配置的第三配置信息， 所述第三 SRS为所述用户设备在所述 D2D通 信时检测的所述对端用户设备发送的 SRS， 用于 D2D通信时 D2D链路的信道
21. 根据权利要求 19所述的方法， 其中， 所述第一 SRS还用于所述用户设备在所 述 D2D通信时向对端用户设备发送， 用于所述对端用户设备进行 D2D链路的 信道测量； 所述第二 SRS由所述对端用户设备在所述 D2D通信时发送， 用于 所述用户设备在所述 D2D通信时进行 D2D链路的信道测量。
22. 根据权利要求 19所述的方法，其中，所述第二 SRS为所述用户设备在所述 D2D 通信时向对端用户设备发送的 SRS,用于所述对端用户设备进行 D2D通信的信 道测量，以及所述用户设备在所述 D2D通信时检测的所述对端用户设备发送的 SRS, 用于所述用户设备进行 D2D通信的信道测量。
23. 根据权利要求 19至 22中任一项所述的方法， 其中， 所述用户设备接收来自所 述网络侧节点的用于指示 SRS配置的所述 SRS配置信息集之后， 还包括： 所述用户设备根据所述第一配置信息向所述网络侧节点发送所述第一 SRS, 以用于所述蜂窝系统中上行链路的信道测量， 或者根据所述第一配置信 息在所述 D2D通信时向对端用户设备发送所述第一 SRS， 以用于 D2D链路的 信道测量； 和 /或， 所述用户设备根据所述第二配置信息在所述 D2D 通信时向对端用户设备 发送所述第二 SRS 或者检测来自所述对端用户设备的所述第二 SRS， 以用于 D2D链路的信道测量。
24. 一种探测参考信号 SRS的传输装置， 位于网络侧节点， 包括：
发送模块， 设置为向用户设备发送 SRS配置信息集， 其中， 所述 SRS配 置信息集包括： 用于指示所述第一 SRS 配置的第一配置信息和用于指示第二 SRS配置的第二配置信息；
其中， 所述第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 所述第二 SRS在设备到设备 D2D通信链路传输， 用于 D2D通信 时 D2D链路的信道测量。
25. 一种用户设备， 包括：
接收模块，设置为接收来自网络侧节点的用于指示探测参考信号 SRS配置 的 SRS配置信息集，其中， 所述 SRS配置信息集包括： 用于指示所述第一 SRS 配置的第一配置信息和用于指示第二 SRS配置的第二配置信息；
其中， 所述第一 SRS在蜂窝通信上行链路传输， 用于蜂窝通信时上行链路 的信道测量， 所述第二 SRS在设备到设备 D2D通信链路传输， 用于 D2D通信 时 D2D链路的信道测量。
26. 根据权利要求 25所述的用户设备， 其中， 还包括：
第一配置信息模块， 设置为根据所述第一配置信息向所述网络侧节点发送 所述第一 SRS， 以用于所述蜂窝系统中上行链路的信道测量， 或者根据所述第 一配置信息在所述 D2D通信时向对端用户设备发送所述第一 SRS,以用于 D2D 链路的信道测量； 和 /或，
第二配置信息模块，设置为根据所述第二配置信息在所述 D2D通信时向对 端用户设备发送所述第二 SRS 或者检测来自所述对端用户设备的所述第二 SRS, 以用于 D2D链路的信道测量。
27. 一种探测参考信号 SRS的传输系统， 包括： 权利要求 24所述的传输装置以及 权利要求 25或 26所述的用户设备。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112586075A (zh) * 2018-08-28 2021-03-30 苹果公司 用于侧链路单播通信的网络辅助波束形成的方法

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103974265B (zh) * 2013-01-28 2017-11-03 华为技术有限公司 一种上行干扰抑制的方法及设备
US9210562B2 (en) * 2013-04-04 2015-12-08 Blackberry Limited Method and apparatus for proximity discovery for device-to-device communication
WO2015042887A1 (zh) 2013-09-27 2015-04-02 华为终端有限公司 用户设备直连通信的信号传输方法和用户设备
CN104734802B (zh) * 2013-12-19 2019-04-12 上海朗帛通信技术有限公司 一种d2d通信中的调度方法和装置
KR101933067B1 (ko) 2014-03-21 2019-03-15 후아웨이 디바이스 컴퍼니 리미티드 장치 대 장치 신호를 검출하는 방법, 사용자 기기, 및 기지국
KR102355628B1 (ko) * 2014-06-27 2022-01-26 엘지전자 주식회사 무선 통신 시스템에서 장치 대 장치 단말의 측정 방법 및 장치
CN105282846B (zh) * 2014-07-25 2019-06-11 中兴通讯股份有限公司 设备到设备通信方法及装置、设备到设备通信控制装置
WO2016045097A1 (zh) * 2014-09-26 2016-03-31 华为技术有限公司 D2d信号跳频方法及基站
EP3244657B1 (en) 2015-01-26 2019-05-22 Huawei Technologies Co. Ltd. Switching device and method
EP3249961B1 (en) * 2015-02-17 2020-11-11 Huawei Technologies Co., Ltd. Uplink reference signal communication device and method
CN108683486B (zh) * 2015-02-17 2019-05-10 华为技术有限公司 一种上行参考信号的通信装置及方法
CN107852769B (zh) * 2015-07-08 2020-08-07 华为技术有限公司 一种wlan的链路自适应方法及网络设备
US10772087B2 (en) * 2015-11-14 2020-09-08 Qualcomm Incorporated Physical layer signaling techniques in wireless communications systems
CN111740812B (zh) 2016-04-01 2022-09-20 中兴通讯股份有限公司 探测参考信号发送方法
US10362571B2 (en) * 2016-11-04 2019-07-23 Qualcomm Incorporated Power control and triggering of sounding reference signal on multiple component carriers
US10680854B2 (en) * 2017-01-06 2020-06-09 Telefonaktiebolaget Lm Ericsson (Publ) Methods and apparatuses for signaling and determining reference signal offsets
WO2018126474A1 (en) * 2017-01-09 2018-07-12 Qualcomm Incorporated Transmitting multiplexed sounding reference signal ports in new radio
CN108471345B (zh) * 2017-02-23 2021-04-20 华为技术有限公司 一种终端与终端之间信道探测的方法、网络侧设备和终端
WO2018207995A1 (ko) * 2017-05-08 2018-11-15 엘지전자 주식회사 무선통신 시스템에서 srs 설정 정보를 수신하는 방법 및 이를 위한 단말
CN115021879A (zh) 2017-08-21 2022-09-06 中兴通讯股份有限公司 参考信号传输方法及装置、终端、基站和存储介质
EP3689056A4 (en) * 2017-09-28 2021-04-28 Lenovo (Beijing) Limited METHOD AND DEVICE FOR SOUND REFERENCE SIGNAL TRANSMISSION ON SIDELINK
CN108260219B (zh) 2018-01-12 2021-11-12 中兴通讯股份有限公司 一种参考信号的接收和发送方法、设备及计算机可读存储介质
CN110474734B (zh) * 2018-05-11 2022-02-08 华为技术有限公司 通信方法及装置
WO2020012540A1 (ja) * 2018-07-09 2020-01-16 株式会社Ｎｔｔドコモ ユーザ装置及び基地局装置
CN111586855B (zh) * 2019-02-15 2024-02-09 华为技术有限公司 信号传输的方法与装置
US11785654B2 (en) * 2019-05-01 2023-10-10 Qualcomm Incorporated SRS based discovery for device to device communication

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101695191A (zh) * 2009-09-29 2010-04-14 中兴通讯股份有限公司 一种分配测量参考信号资源的系统及方法
CN101827444A (zh) * 2010-03-31 2010-09-08 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法
US20110275382A1 (en) * 2010-05-06 2011-11-10 Sami-Jukka Hakola Measurements and Fast Power Adjustments in D2D Communications

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8938247B2 (en) * 2009-04-23 2015-01-20 Qualcomm Incorporated Sounding reference signal for coordinated multi-point operation
KR20120074254A (ko) * 2010-12-27 2012-07-05 한국전자통신연구원 단말간 직접 연결 통신 및 단말 릴레잉을 위한 디바이스 대 디바이스 링크의 연결 설정 및 스케쥴링 방법

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101695191A (zh) * 2009-09-29 2010-04-14 中兴通讯股份有限公司 一种分配测量参考信号资源的系统及方法
CN101827444A (zh) * 2010-03-31 2010-09-08 中兴通讯股份有限公司 一种测量参考信号的信令配置系统及方法
US20110275382A1 (en) * 2010-05-06 2011-11-10 Sami-Jukka Hakola Measurements and Fast Power Adjustments in D2D Communications

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112586075A (zh) * 2018-08-28 2021-03-30 苹果公司 用于侧链路单播通信的网络辅助波束形成的方法

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