WO2017166249A1 - 信息传输方法及装置 - Google Patents

信息传输方法及装置 Download PDF

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Publication number
WO2017166249A1
WO2017166249A1 PCT/CN2016/078216 CN2016078216W WO2017166249A1 WO 2017166249 A1 WO2017166249 A1 WO 2017166249A1 CN 2016078216 W CN2016078216 W CN 2016078216W WO 2017166249 A1 WO2017166249 A1 WO 2017166249A1
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Prior art keywords
time period
srs
base station
parameter information
send
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PCT/CN2016/078216
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English (en)
French (fr)
Inventor
李�远
官磊
马莎
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201680083079.6A priority Critical patent/CN108702747A/zh
Priority to PCT/CN2016/078216 priority patent/WO2017166249A1/zh
Publication of WO2017166249A1 publication Critical patent/WO2017166249A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to an information transmission method and apparatus.
  • LAA-LTE Licensed-Assisted Access Using-Long Term Evolution
  • CA Carrier Aggregation
  • WiFi Wireless Fidelity
  • Devices including User Equipment (UE) and Access Point (AP)
  • LAA-LTE devices including UEs and base stations
  • LBT Listening Before Talk
  • Clear Channel Assessment The Clear Channel Assessment is used to detect the channel. When the channel is idle, the CCA is completed.
  • the LAA-LTE device can occupy the channel to send the Physical Uplink Shared Channel (PUSCH) data.
  • PUSCH Physical Uplink Shared Channel
  • the interference is performed. Avoiding, that is, not occupying the channel, waiting for the end of occupation of other wireless communication devices, and then detecting the channel, and then occupying the channel when the channel is idle.
  • the UE sends a Sounding Reference Signal (SRS) to the base station to perform measurement of the wireless uplink channel.
  • SRS Sounding Reference Signal
  • 1 is a schematic structural diagram of a cell SRS subframe in a LAA-LTE system, where a cell SRS subframe includes one SRS time period for the UE to transmit, and the time segment is referred to as an SRS corresponding time segment, where the time segment exists.
  • the base station is in an idle state for the spectrum resources configured by the UE during the time period, as shown in FIG.
  • the first UE in the cell SRS subframe is not sent by the base station to transmit the SRS on the SRS corresponding time period, that is, the spectrum resource configured by the first UE in the SRS corresponding time period is idle, and the second UE is indicated by the base station in the SRS.
  • Sending the SRS on the corresponding time period when the first UE is called in the next time period of the SRS corresponding time period, that is, when the PUSCH data needs to be sent in the latter time period, in this case, the first UE must The CCA is performed on the latter time period, that is, the PUSCH data cannot be transmitted in the latter time period, thereby causing waste of resources.
  • the embodiment of the invention provides an information transmission method and device, thereby achieving the effect of saving resources.
  • an embodiment of the present invention provides an information transmission method, including:
  • the preset condition includes: the UE is not sent by the base station to send the SRS on the first time period of the sounding reference signal cell SRS subframe, and the UE is instructed by the base station to send the uplink in the second time period. data;
  • the first time period is a SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the UE does not send the SRS in the first time period because the UE is not instructed to transmit the uplink PUSCH data in the second time period, but the CCA is to be executed, but the UE in the first time period of the embodiment of the present invention
  • the padded SRS is sent, and the CCA data can be directly sent in the second time period, thereby improving the resource utilization.
  • the determining, by the UE, the SRS parameter information of the UE in the first time period including:
  • the UE Receiving, by the UE, a configuration message sent by the base station, where the configuration message includes at least one set of SRS parameter information, where the at least one set of SRS parameter information is used to configure the SRS sent by the UE in the first time period;
  • the UE determines corresponding SRS parameter information in at least one set of SRS parameter information.
  • the configuration message is used to configure the SRS sent by the UE in the first time period.
  • the method further includes: the UE reserves the third time period as an idle time period;
  • the third time period is the previous time period of the first time period.
  • the purpose of reserving the third time period is to enable other UEs to perform CCA on the third time period. And since the UE fills the SRS in the first time period, the CCA may be performed less once for other UEs. Increased resource utilization.
  • the UE reserves the third time period as the idle time period, where the UE receives the indication message sent by the base station, and the UE reserves the third time period as the idle time period according to the indication message.
  • the time period includes at least one of a single carrier-frequency division multiple access SC-FDMA symbol.
  • an embodiment of the present invention provides an information transmission method, including:
  • the base station sends a configuration message to the UE, where the configuration message includes at least one SRS parameter information, where the at least one SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the UE meets a preset condition, where the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station on the second time period.
  • Send uplink data includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station on the second time period.
  • Send uplink data
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the method further includes: the base station sending an indication message to the UE;
  • the indication message is used to indicate that the UE reserves the third time period as an idle time period
  • the third time period is a previous time period of the first time period.
  • an embodiment of the present invention provides an information transmission apparatus, where the apparatus is a user equipment UE, including: a determining module and a sending module;
  • the preset condition includes: the UE is not sent by the base station to send the SRS on the first time period of the sounding reference signal cell SRS subframe, and the UE is instructed by the base station to send the uplink data in the second time period. ;
  • a determining module configured to determine corresponding SRS parameter information of the UE in the first time period
  • a sending module configured to send an SRS on the first time period according to the corresponding SRS parameter information
  • the first time period is a SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the device further includes: a receiving module
  • a receiving module configured to receive a configuration message sent by the base station, where the configuration message includes at least one set of SRS parameter information, where the at least one set of SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the determining module is specifically configured to determine the corresponding SRS parameter information in the at least one set of SRS parameter information.
  • the device further includes: a reservation module;
  • a reservation module configured to reserve a third time period as an idle time period
  • the third time period is a previous time period of the first time period.
  • the receiving module is further configured to receive the indication message sent by the base station, where the reservation module is configured to reserve the third time period as the idle time period according to the indication message.
  • the time period includes at least one of a single carrier-frequency division multiple access SC-FDMA symbol.
  • an embodiment of the present invention provides an information transmission apparatus, where the apparatus is a base station, including:
  • a determining module configured to determine at least one sounding reference signal SRS parameter information corresponding to the user equipment UE in the first time period
  • a sending module configured to send a configuration message to the UE, where the configuration message includes at least one SRS parameter information, where the at least one SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the UE meets a preset condition, where the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station at a second time Send uplink data on the segment;
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the sending module is further configured to send an indication message to the UE;
  • the indication message is used to indicate that the UE reserves the third time period as an idle time period
  • the third time period is a previous time period of the first time period.
  • an embodiment of the present invention provides an information transmission apparatus, where the apparatus is a user equipment UE, including: a processor and a transmitter;
  • the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of the sounding reference signal cell SRS subframe, and the UE is indicated by the base station Sending uplink data on the second time period;
  • the processor is further configured to determine SRS parameter information corresponding to the UE in the first time period;
  • a transmitter configured to send an SRS on the first time period according to the corresponding SRS parameter information
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the device further includes: a receiver;
  • a receiver configured to receive a configuration message sent by the base station, where the configuration message includes at least one set of SRS parameter information, where the at least one set of SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the processor is specifically configured to determine the corresponding SRS parameter information in the at least one group of SRS parameter information.
  • the processor is further configured to reserve the third time period as an idle time period
  • the third time period is a previous time period of the first time period.
  • the receiver is further configured to receive the indication message sent by the base station;
  • the processor is configured to reserve a third time period as an idle time period according to the indication message.
  • the time period includes at least one of a single carrier-frequency division multiple access SC-FDMA symbol.
  • an embodiment of the present invention provides an information transmission apparatus, where the apparatus is a base station, including:
  • a processor configured to determine at least one sounding reference signal SRS parameter information corresponding to the user equipment UE in the first time period
  • a transmitter configured to send a configuration message to the UE, where the configuration message includes at least one SRS parameter information, where the at least one SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the UE meets a preset condition, where the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station at a second time Send uplink data on the segment;
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the sender is further configured to send an indication message to the UE;
  • the indication message is used to indicate that the UE reserves the third time period as an idle time period
  • the third time period is a previous time period of the first time period.
  • An embodiment of the present invention provides an information transmission method and apparatus.
  • the method includes: if the UE determines that the preset condition is met, the preset condition includes: the UE is not indicated by the base station in the first time period of the sounding reference signal cell SRS subframe. Sending an SRS, and the UE is instructed by the base station to send the uplink data on the second time period; the UE determines the SRS parameter information corresponding to the UE in the first time period; the UE sends the SRS in the first time period according to the corresponding SRS parameter information;
  • the UE does not send the SRS in the first time period because the UE is not instructed to transmit the PUS data in the first time period. Therefore, the UE cannot send the PUSCH data in the second time period, but the CCA is to be executed.
  • the padded SRS then no need to perform CCA in the second time period, can directly send uplink PUSCH data, thereby improving resource utilization.
  • FIG. 1 is a schematic structural diagram of a cell SRS subframe in a LAA-LTE system
  • FIG. 3 is a schematic diagram 1 of a frame structure according to an embodiment of the present invention.
  • FIG. 4 is a second schematic structural diagram of a frame according to an embodiment of the present invention.
  • FIG. 5 is a schematic diagram 3 of a frame structure according to an embodiment of the present invention.
  • FIG. 6 is a schematic diagram 4 of a frame structure according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram 5 of a frame structure according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram 6 of a frame structure according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of an information transmission method according to another embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • FIG. 11 is a schematic structural diagram of an information transmission apparatus according to another embodiment of the present invention.
  • FIG. 12 is a schematic structural diagram of an information transmission apparatus according to still another embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an information transmission apparatus according to still another embodiment of the present invention.
  • the present invention is applicable to an LTE system that can operate on an unlicensed spectrum, that is, a LAA-LTE system.
  • the base station can aggregate multiple carriers (for example, the unlicensed carrier and the authorized carrier, the unlicensed carrier and the unlicensed carrier) by using the CA technology.
  • the carrier allocation scenario includes: 1. the licensed spectrum and the unlicensed spectrum co-site deployment, that is, the licensed spectrum. And the unlicensed spectrum is aggregated by the same base station, the base station sets the authorized carrier as a primary carrier (PCC), and sets the unlicensed carrier as a secondary component carrier (SCC); 2.
  • PCC primary carrier
  • SCC secondary component carrier
  • the licensed spectrum and Unlicensed spectrum non-co-location deployment for example, licensed spectrum deployment in macro base stations, unlicensed spectrum deployment in low-power nodes, such as micro base stations, pico base stations, home base stations, etc., between macro base stations and low-power nodes through ideal or non-ideal
  • the backhaul link is connected; 3.
  • the unlicensed spectrum is independently deployed on the base station, that is, the base station uses only the unlicensed spectrum instead of the licensed spectrum.
  • the network element involved in the embodiment of the present invention includes a base station and a UE operating on an unlicensed spectrum, where the base station includes a macro base station, a micro area, a micro base station, a pico base station, a home base station, etc.; the user equipment includes a mobile phone, a notebook computer, and a tablet computer. And other terminal equipment.
  • the SRS is used by the base station to measure the uplink channel.
  • the SRS is transmitted by the UE through the SRS subframe of the cell.
  • the base station configures the frequency domain information and the time domain information of the SRS subframe of the cell through the high layer signaling.
  • the base station configures, by using the high layer signaling, the code sequence, the frequency domain information, the time domain information, and the like corresponding to the SRS of the UE, where the time domain information of the cell SRS subframe has periodicity; the base station configures the UE for the UE.
  • the time domain information is cyclical or aperiodic.
  • the base station can configure the period in which the UE sends the SRS and the time domain offset through the high layer signaling, where the time domain offset Instructing the UE to transmit the SRS in the time domain position of each period, the UE periodically sends the SRS according to the configuration, and the base station also configures the UE by using the high layer signaling when the time domain information configured by the base station for the UE is aperiodic. Sending the SRS period and the time domain offset.
  • the base station notifies the UE to send the SRS through the SRS request in the dynamic signaling uplink grant (UL grant), and the UE is in the latest time domain position after receiving the SRS request.
  • UL grant dynamic signaling uplink grant
  • the UE receives an SRS request and only sends the SRS once.
  • the time period for transmitting the SRS in the SRS subframe of the cell is a fixed time period.
  • the time period may be the last single carrier-frequency division multiple access (Single Carrier-Frequency Division Multiple Access) in the SRS subframe of the cell.
  • SC-FDMA single carrier-frequency division multiple access
  • the cell SRS subframe configuration period is 1 ms
  • the UE sends the SRS period to 2 ms
  • the UE1 and the UE 3 transmit the SRS in the same time domain position
  • the orthogonality is configured by configuring different code sequences; the UE1 and the UE2 send the SRS.
  • the time domain location is different.
  • the UE may use a single-slot CCA or a back-based CCA to complete the interception access channel to transmit PUSCH data.
  • the flow of the single-slot CCA is: the UE performs a single-slot CCA listening, and the time slot length is, for example, 34 us or 43 us, and compares the power on the received channel in this time slot with the energy detection threshold, if it is higher than the threshold. If the channel is busy, the channel is not accessed. If the channel is below the threshold, that is, the channel is idle, the channel is immediately accessed. Further, if the channel is detected to be busy, the channel can immediately enter the next CCA slot until the channel is idle. Or the UE gives up sending information.
  • the backhaul-based CCA process is: the UE first randomly generates a back-off counter randomly between 0 and q, where q is the contention window length, typically such as [3, 7], or [15, 63] or [15, 1023].
  • the UE continuously listens at a granularity of 9us. If the channel is idle in a CCA time slot, the counter is decremented by one. If the channel is busy, the counter is suspended until the next time the idle is heard, the counter is continued. When the counter is decremented to 0, the UE immediately accesses the channel.
  • the UE meets the preset condition, and the preset condition includes: the UE is not sent by the base station to send the SRS in the first time period of the current cell SRS subframe (where "00" can be used. Indicates that the UE is not sent by the base station to transmit the SRS in the first time period of the current cell SRS subframe, and “01” indicates that the UE is instructed by the base station to send the SRS in the first time period of the current cell SRS subframe, which is used by the embodiment of the present invention. No limitation), and the UE is instructed by the base station to transmit uplink data on the second time period.
  • the first time period is a SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the latter time period is a continuous time period adjacent to the first time period.
  • the time period in the embodiment of the present invention includes at least one of a single carrier-frequency division multiple access SC-FDMA symbol.
  • the method specifically includes the following processes:
  • the UE determines the SRS parameter information corresponding to the UE in the first time period.
  • the UE receives a configuration message sent by the base station, where the configuration message is used to configure the SRS sent by the UE in the first time period, and the configuration message includes at least one set of SRS parameter information, where the at least one set of SRS parameter information is used.
  • the set of SRS parameter information is the corresponding SRS parameter information in the first time period; when the at least one set of SRS parameter information is greater than the set of SRS parameter information, the UE determines a set of SRS parameter information in the at least one SRS parameter information as the first time Corresponding SRS parameter information on the segment.
  • the set of SRS parameter information includes information of at least one of the following parameters: 1. a code sequence corresponding to the SRS in the first time period configured by the base station for the UE; 2. frequency domain location information corresponding to the SRS when the SRS is sent, used to indicate the Which frequency band is occupied by the UE; 3.
  • the frequency domain offset information corresponding to the SRS is used to indicate the comb domain resource occupied by the UE.
  • the frequency domain location of the SRS indicates which bandwidth the UE occupies, that is, which consecutive resource blocks (RBs), and the SRS frequency domain offset indicates which combo in the bandwidth is occupied by the UE;
  • the SRS of one UE occupies one sub-carrier for every other sub-carrier. Therefore, two UEs can be configured simultaneously in the same segment of the bandwidth, occupying the sub-carriers of odd-numbered numbers and the sub-carriers of even-numbered numbers respectively.
  • the UE is not instructed by the base station to transmit the SRS, but the base station may instruct other UEs to send the SRS, and the base station configures the same SRS parameters for the two UEs.
  • the base station In order to prevent the UE from transmitting the SRS in the first time period and causing interference to the SRS sent by the UE that is instructed to send the SRS by the base station, the base station additionally configures the UE with at least one set of SRS parameter information for sending in the first time period, and Each set of SRS parameters of the at least one set of SRS parameter information and other UEs that are instructed to transmit SRS by the base station
  • the SRS is orthogonal, and at least one of the code sequence including the SRS, the frequency domain position, and the frequency domain offset is orthogonal to other SRS parameter information corresponding to the UE that the base station indicates to transmit the SRS.
  • the code sequence corresponding to each SRS in the at least one group of SRS parameter information may be determined by the base station according to the SRS to be sent by other UEs in the first time period, for example, the code corresponding to each SRS in the at least one SRS parameter information.
  • the sequence is orthogonal to the code sequence corresponding to the SRSs to be transmitted by other UEs.
  • the configuration message is an SRS parameter that is additionally configured by the base station to the UE, and may be the same as or different from the parameter information that the base station indicates that the UE sends the SRS in other time periods. If not, the UE is in the first time period.
  • the SRS parameter configured by the configuration message is used to send the SRS, and the base station is instructed to send the parameter information corresponding to the SRS in other time periods.
  • the SRS parameter information of the base station configured by using the configuration message to multiple UEs may be non-orthogonal or orthogonal; if multiple UEs send non-orthogonal SRS signals in the same first time period, these SRS signals are only used for The UE occupies a channel and is not used by the base station to perform channel estimation, and thus does not cause mutual interference.
  • the SeNB configures the SRS parameter information for the UE through the high-layer signaling, and configures the SRS parameter information for the UE through the configuration message.
  • it can pass the SRS parameter information carried in the high-layer signaling and the SRS carried in the configuration message.
  • the number of parameter information groups is different, and the set of SRS parameter information is used to send the SRS in the first time period. For example, when the UE receives a message that carries two sets of SRS parameter information, the UE may determine the two.
  • the group SRS parameter information is used to send the SRS in the first time period.
  • the message carries a set of SRS parameter information
  • the UE cannot identify; further, the base station can carry different in the high layer signaling and the configuration message.
  • the identifier of the message is as follows: the identifier of the high-level signaling is 1 and the identifier of the configuration message is 0. After the UE receives the message, if the identifier carried in the message is 0, the UE determines the identifier carried in the message.
  • the SRS parameter information is used to send the SRS on the first time period; or the base station may set the identifier bit or the field in the high layer signaling and the configuration message, and the UE may Field to identify different ones of SRS parameters for the SRS information transmitted in the first period.
  • the UE may identify, according to the chronological order of the received message, which group of SRS parameter information is used to send the SRS in the first time period, for example, the SRS parameter information carried in the first received message is not used in the first
  • the SRS parameter information of the SRS is sent in a time period
  • the SRS parameter information carried in the second received message is the SRS parameter information used to send the SRS in the first time period.
  • the embodiment of the present invention does not limit how to identify which SRS parameter information is used to transmit the SRS in the first time period.
  • the foregoing configuration message may be: Radio Resource Control (Radio Resource Control, RRC) message; or cell-specific control signaling, which may be carried in a common search space in a physical downlink control channel or an enhanced physical downlink control channel; or user-specific control signaling, which may be carried on a physical downlink control channel or enhanced physics
  • RRC Radio Resource Control
  • the user search space in the downlink control channel may further be carried in the UL grant in the user search space or in the hybrid automatic retransmission indication physical channel.
  • the base station does not send an indication message for configuring the SRS sent by the UE in the first time period to the UE.
  • the UE uses the code sequence configured by the UE for the other time period. The sequence is used as the SRS parameter information corresponding to the UE in the first time period. It should be understood that the base station configures the parameter information of the SRS, including the code sequence, the frequency domain location, and the frequency domain offset information, to the UE by using the high layer signaling, and the UE may use the UE even if the UE does not indicate that the SRS is sent in the first time period.
  • the parameter information configuration SRS is sent in the first time period; however, the first time period of the UE may be the time period in which the other cell of the same cell is instructed by the base station to send the SRS, and the base station configures the same for the two UEs.
  • the UE transmitting the SRS in the first time period causes interference to the SRS of another UE; but if the base station configures orthogonal SRS parameter information for all UEs in the cell, ie, The parameter information corresponding to the SRS sent by the UE in the time period in which the SeNB is instructed to transmit the SRS is also orthogonal to the SRS parameter information of the other UEs, and the UE does not cause interference to other UEs during the first time period.
  • the SRS parameter information is configured for the UE in the first time period by using the configuration message. In this case, the base station does not need additional SRS configuration signaling overhead, but because the number of orthogonal SRS resources is limited, the number of UEs in the cell is large. It is still possible to configure conflicting SRS resources for multiple UEs.
  • the first time period is a time period in which the UE SRS is not configured for the UE in the current cell SRS subframe; and the time domain information configured by the base station for the UE has The non-periodic, the first time period is a time period in which the UE SRS is not configured for the UE in the current cell SRS subframe; or the first time period is that the UE SRS is configured for the UE in the current cell SRS subframe.
  • the time period, and the base station does not notify the UE to transmit the SRS through the SRS request in the dynamic signaling uplink grant (UL grant) during the time period.
  • S202 The UE sends the SRS on the first time period according to the corresponding SRS parameter information.
  • FIG. 3 is a schematic diagram of a frame structure according to an embodiment of the present invention.
  • the first uplink subframe is a cell SRS subframe, and the first UE is not indicated by the base station.
  • Sending an SRS in a first time period (the last SC-FDMA symbol of the first uplink subframe), and the UE is instructed by the base station to send an uplink on the second time period (the first SC-FDMA symbol of the second uplink subframe) Data therefore, the first UE sends the padded SRS (corresponding to the SRS code sequence 3 in FIG. 3) on the first time period, and then does not need to perform CCA on the second time period, but directly transmits the PUSCH data, in the full text
  • the first UE is the UE described above.
  • the embodiment of the present invention provides an information transmission method, including: if the UE determines that the preset condition is met, the preset condition includes: the UE is not sent by the base station to send the SRS on the first time period of the sounding reference signal cell SRS subframe, and The UE is instructed by the base station to send the uplink data on the second time period; the UE determines the SRS parameter information corresponding to the UE in the first time period; the UE sends the SRS in the first time period according to the corresponding SRS parameter information.
  • the UE sends the SRS on the first time period because the UE does not indicate that the SRS is sent in the first time period. Therefore, the UE cannot send the PUSCH data in the second time period, but the UE performs the CCA in the first time period. Then, the CCA data can be directly sent in the second time period without performing CCA, thereby improving resource utilization.
  • the foregoing preset condition includes: the UE is not sent by the base station to send the SRS in the first time period of the current cell SRS subframe, and the UE is instructed by the base station to send the uplink data in the second time period, that is, the default may exist.
  • the third UE is instructed by the base station to transmit the SRS on the first time period.
  • FIG. 4 is a schematic diagram 2 of a frame structure according to an embodiment of the present invention.
  • the first uplink subframe is a cell SRS subframe
  • the first UE is not indicated by the base station in the first time period (the first uplink).
  • the last SC-FDMA symbol of the subframe transmits an SRS
  • the UE is instructed by the base station to transmit uplink data in the second time period (the first SC-FDMA symbol of the second uplink subframe), and the third UE is in the first time period.
  • Sending an SRS (corresponding to the SRS code sequence 1 in FIG. 4), in which case the first UE sends a padding SRS on the first UE (corresponding to the SRS code sequence 3 in FIG. 4), then the second time period
  • Both the UE and the third UE do not need to perform CCA again, and can directly transmit PUSCH data, thereby improving resource utilization.
  • the information transmission method further includes: the UE reserves the third time period as an idle time period; and corresponds to the UE defaulting that the third time period is an idle time period.
  • the third time period is a previous time period of the first time period.
  • FIG. 5 is a schematic diagram 3 of a frame structure according to an embodiment of the present invention, such as As shown in FIG. 5, the first UE reserves a third time period.
  • the second UE may not send uplink data before the third time period by default, and the UE is instructed by the base station to send uplink data in the second time period. Therefore, the third time period is reserved for the second UE to be in the The CCA is performed on the third time period. And because the first UE fills the SRS in the first time period, the CCA can be performed less once for the second UE, which improves resource utilization.
  • the first UE receives the indication message sent by the base station; the first UE reserves the third time period as the idle time period according to the configuration message, where the first UE receives the indication message, and may determine that the second UE may exist in the third time.
  • the uplink data is not sent before the segment, and the second UE is instructed by the base station to send the uplink data in the second time period; for example, the configuration message may be represented by using “00”, when the third time period is not required to be reserved for the idle time period, It can be represented by "01".
  • FIG. 6 is a schematic diagram of a frame structure according to an embodiment of the present invention. As shown in FIG.
  • the second UE sends uplink data in the second time period because the second UE does not send uplink data before the third time period. Therefore, the first UE reserves a third time period, so that the second UE can perform CCA on the third time period. And because the first UE fills the SRS in the first time period, the CCA can be performed less once for the second UE, which improves resource utilization.
  • the first UE only reserves the first time period as the idle time period.
  • the second UE may be in the third time period.
  • the first time period is reserved, which causes the second UE to fail to perform CCA, that is, the channel cannot be preempted, and the PUSCH data cannot be transmitted, thereby reducing communication reliability.
  • the information transmission method provided by the embodiment of the present invention determines that when the current subframe is a cell SRS subframe, the third time period is reserved by default; or, when receiving the configuration message sent by the base station sent by the base station, the third is reserved. Time period, thereby improving communication reliability.
  • the indication message is used to indicate the first UE reserved time period or is used to indicate the first UE reservation period. For a period of time, the first UE reserves the first time period as an idle time period.
  • FIG. 7 is a schematic diagram of a frame structure according to an embodiment of the present invention. As shown in FIG. 7, the first uplink subframe is a non-cell SRS. The first UE is reserved for the first time period as an idle time period, and the idle time period is mainly used by the second UE to perform CCA in the first time period.
  • FIG. 8 is a schematic diagram of a frame structure according to an embodiment of the present invention. As shown in FIG. The SRS is sent over the time period.
  • the first UE defaults or the first UE receives the indication of the base station to reserve the third time period or fills the SRS in the first time period.
  • the base station may directly determine whether to reserve the third time. The segment and the SRS are filled in the first time period. After the determining, the base station sends an indication message to the first UE, where the indication message is used to indicate whether the first UE reserves the third time period and whether to fill in the first time period. SRS.
  • the energy detection threshold is inversely proportional to the signal transmission power, that is, the lower the signal transmission power, the higher the energy detection threshold, and the higher the signal transmission power, the lower the energy detection threshold.
  • the 20MHz bandwidth Take the 20MHz bandwidth as an example. The specific relationship is:
  • X Thresh_max max( -72dBm ,min(T max ,(T max -T A +(P H -P TX )))))),
  • X Thresh_max represents the energy detection threshold
  • T max (dBm) -75dBm / MHz + 10log10 (BW)
  • T A 10dB
  • P TX is the actual signal transmission power.
  • the energy detection threshold is inversely proportional to the signal transmission power.
  • the transmit power spectral density of the SRS is defined as the PUSCH power spectral density plus a fixed offset value, but the bandwidth occupied by the SRS is different from the PUSCH.
  • the power of transmitting the SRS may exceed the power of transmitting the PUSCH data.
  • the UE transmits the SRS in the cell SRS subframe as the padding signal to occupy the channel, instead of the base station side receiving detection, so when the power of transmitting the SRS exceeds the power of transmitting the PUSCH data, the continuous uplink transmission is performed.
  • the average power of the SRS and PUSCH data is higher than the power of the PUSCH data, which causes the energy detection threshold to decrease.
  • the transmit power spectral density of the SRS can be reduced, so that the transmit power of the SRS is the same as the transmit power of the PUSCH data, so that the energy detection threshold of the uplink transmission remains unchanged after the SRS signal is transmitted in front of the PUSCH data.
  • the number of PRBs occupied by the transmitting SRS is smaller than the number of PRBs occupied by the PUSCH data, or the SRS transmission power is lower than the PUSCH data transmission power, it is not necessary to adjust the SRS transmission power spectral density.
  • FIG. 9 is a flowchart of a method for transmitting information according to another embodiment of the present invention. The method is performed by a base station, and the method includes the following process:
  • the base station determines at least one group of SRS parameter information corresponding to the UE in the first time period.
  • the base station sends a configuration message to the UE, where the configuration message includes at least one set of SRS parameter information, where the at least one set of SRS parameter information is used to configure an SRS sent by the UE on the first time period.
  • the UE meets the preset condition, the preset condition includes: the UE is not sent by the base station to send the SRS in the first time period of the current cell SRS subframe, and the UE is instructed by the base station to send the uplink data in the second time period; One time period is the SRS corresponding time period, and the second time period is the latter time period of the first time period.
  • the SRS parameter information includes: a code sequence corresponding to the SRS in the first time period configured by the base station, and/or frequency domain information corresponding to the SRS when the SRS is transmitted, where the frequency domain information includes the frequency domain location and/or frequency. Domain offset (ie comb domain resource).
  • the code sequence and the frequency domain information corresponding to the SRS configured by the base station for the UE are orthogonal to the code sequence and/or the frequency domain information corresponding to the SRSs of other UEs, in order to avoid the interference between the UE and the other UEs in the first time period.
  • the code sequence corresponding to each SRS in the at least one group of SRS parameter information may be determined by the base station according to the SRS to be sent by other UEs in the first time period, for example, the code corresponding to each SRS in the at least one SRS parameter information.
  • the sequence is orthogonal to the code sequence corresponding to the SRSs to be transmitted by other UEs.
  • the foregoing configuration message may be: an RRC message; or a cell-specific control signaling, which may be carried in a common search space in a physical downlink control channel or an enhanced physical downlink control channel; or user-specific control signaling may be carried in The physical downlink control channel or the user search space in the enhanced physical downlink control channel may further be carried in the UL grant in the user search space or in the hybrid automatic retransmission indication physical channel.
  • An embodiment of the present invention provides an information transmission method, including: determining, by a base station, at least one set of SRS parameter information corresponding to a UE in a first time period; the base station sending a configuration message to the UE, where the configuration message includes at least one set of SRS parameter information, where the at least one set A set of SRS parameter information is used to configure an SRS sent by the UE in the first time period, and the sent SRS may be referred to as a padding SRS, and the base station does not send all the SRS parameter information to the UE, but sends at least one to the UE.
  • the group SRS parameter information can be used to configure the padding SRS, so that the UE only needs to determine a set of SRS parameter information in at least one set of SRS parameter information, and is more efficient than determining a set of SRS parameter information in all SRS parameter information.
  • the method further includes:
  • the base station sends an indication message to the UE, where the indication message is used to indicate that the UE reserves the third time period as idle. a time period; wherein the third time period is a previous time period of the first time period.
  • the method of sending the indication message is such that the UE reserves the third time period as the idle time period only after receiving the indication message.
  • the UE does not need to reserve the third time period as the idle time period.
  • FIG. 10 is a schematic structural diagram of an information transmission apparatus according to an embodiment of the present invention.
  • the apparatus is a user equipment UE.
  • the apparatus includes: a determining module 1001 and a sending module 1002.
  • the determining module 1001 determines that the preset condition is met, the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of the sounding reference signal cell SRS subframe, and the UE is indicated by the base station The uplink data is sent on the second time period; the determining module 1001 is further configured to determine SRS parameter information corresponding to the UE in the first time period;
  • the sending module 1002 is configured to send, according to the corresponding SRS parameter information, the SRS on the first time period, where the first time period is an SRS corresponding time period, and the second time period is the The next time period of a period of time.
  • the information transmission device of the embodiment of the present invention may be used to implement the technical implementation of the method corresponding to FIG. 2, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the device further includes: a receiving module 1003.
  • the receiving module 1003 is configured to receive a configuration message sent by the base station, where the configuration message includes at least one group of SRS parameter information, where the at least one group of SRS parameter information is used. And configuring the SRS that is sent by the UE on the first time period; the determining module 1001 is specifically configured to determine the corresponding SRS parameter information in the at least one group of SRS parameter information.
  • the device further includes a reservation module 1004.
  • the reservation module 1004 is configured to reserve a third time period as an idle time period, where the third time period is a previous one of the first time segments. period.
  • the receiving module 1003 is further configured to receive an indication message sent by the base station, where the reservation module 1004 is configured to reserve a third time period as an idle time period according to the indication message.
  • the time period includes at least one of a single carrier-frequency division multiple access SC-FDMA symbol.
  • FIG. 11 is a schematic structural diagram of an information transmission apparatus according to another embodiment of the present invention.
  • the apparatus is a base station, and includes: a determining module 1101, configured to determine at least one sounding reference signal corresponding to a user equipment UE in a first time period. SRS parameter information; a sending module 1102, configured to send to the UE Sending a configuration message, the configuration message includes at least one SRS parameter information, where the at least one SRS parameter information is used to configure an SRS sent by the UE on the first time period;
  • the UE meets a preset condition, where the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station at a second time Send uplink data on the segment;
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the information transmission device of the embodiment of the present invention may be used to implement the technical solution of the method corresponding to FIG. 9 , and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the sending module 1102 is further configured to send an indication message to the UE, where the indication message is used to indicate that the UE reserves the third time period as an idle time period; The time period is the previous time period of the first time period.
  • FIG. 12 is a schematic structural diagram of an information transmission apparatus according to still another embodiment of the present invention, where the apparatus is a user equipment UE, including: a processor 1201 and a transmitter 1202;
  • the processor 1201 determines that the preset condition is met, the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of the sounding reference signal cell SRS subframe, and the UE is indicated by the base station Transmitting the uplink data on the second time period; the processor 1201 is further configured to determine the SRS parameter information corresponding to the UE in the first time period;
  • the transmitter 1202 is configured to send, according to the corresponding SRS parameter information, the SRS on the first time period, where the first time period is an SRS corresponding time period, and the second time period is The next time period of the first time period.
  • the information transmission device of the embodiment of the present invention may be used to implement the technical implementation of the method corresponding to FIG. 2, and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the device further includes: a receiver 1203.
  • the receiver 1203 is configured to receive a configuration message sent by the base station, where the configuration message includes at least one group of SRS parameter information, where the at least one group of SRS parameter information is used.
  • the SRS is configured to be sent by the UE in the first time period; the processor 1201 is specifically configured to determine the corresponding SRS parameter information in the at least one group of SRS parameter information.
  • the processor 1201 is further configured to reserve the third time period as an idle time period; wherein the third time period is a previous time period of the first time period.
  • the receiver 1203 is further configured to receive an indication message sent by the base station, where the processor 1201 is configured to reserve a third time period as an idle time period according to the indication message.
  • the time period includes at least one of single carrier-frequency division multiple access SC-FDMA symbols.
  • FIG. 13 is a schematic structural diagram of an information transmission apparatus according to another embodiment of the present invention.
  • the apparatus is a base station, and includes: a processor 1301, configured to determine at least one sounding reference signal corresponding to a user equipment UE in a first time period. SRS parameter information; a sender 1302, configured to send a configuration message to the UE, where the configuration message includes at least one SRS parameter information, where the at least one SRS parameter information is used to configure the UE on the first time period SRS sent;
  • the UE meets a preset condition, where the preset condition includes: the UE is not indicated by the base station to send an SRS on a first time period of a current cell SRS subframe, and the UE is indicated by the base station at a second time Send uplink data on the segment;
  • the first time period is an SRS corresponding time period
  • the second time period is a subsequent time period of the first time period
  • the information transmission device of the embodiment of the present invention may be used to implement the technical solution of the method corresponding to FIG. 9 , and the implementation principle and technical effects thereof are similar, and details are not described herein again.
  • the sender 1302 is further configured to send an indication message to the UE, where the indication message is used to indicate that the UE reserves the third time period as an idle time period; The time period is the previous time period of the first time period.
  • the aforementioned program can be stored in a computer readable storage medium.
  • the program when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Abstract

本发明实施例提供一种信息传输方法及装置，该方法包括：若UE确定满足预设条件，该预设条件包括：UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；UE确定UE在第一时间段上对应的SRS参数信息；UE根据对应的SRS参数信息在第一时间段上发送SRS；其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。从而提高资源利用率。

Description

信息传输方法及装置 技术领域
本发明实施例涉及通信技术，尤其涉及一种信息传输方法及装置。
背景技术
授权辅助接入的长期演进(Licensed-Assisted Access using-Long Term Evolution，简称LAA-LTE)系统通过载波聚合(Carrier Aggregation，简称CA)技术，可以将可用的频谱扩展到非授权频谱上。
虽然非授权频谱相对于授权频谱具有成本低廉，可使用带宽丰富等优点，但是在同一非授权频谱上可能工作着以无线保真(Wireless Fidelity，简称WiFi)为代表的其他无线通信系统，由于WiFi设备(包括用户设备(User Equipment，简称UE)和接入点(Access Point，简称AP))和LAA-LTE设备(包括UE和基站)可能不由同一运营商铺设，无法统一进行规划部署，这些设备可能会有较低的地理隔离度，相比于同一运营商不同设备之间的无线信号干扰更加严重。为了实现在非授权频谱上满足和WiFi等异系统的友好共存，LAA-LTE系统可以采用先听后发(Listen Before Talk，简称LBT)信道接入机制，利用空闲信道评测(Clear Channel Assessment，简称CCA)对信道进行检测，当信道为空闲时，CCA完成，LAA-LTE设备可占用该信道发送物理层上行共享信道(Physical Uplink Shared Channel，简称PUSCH)数据，当信道为繁忙时，则执行干扰避让，即不占用该信道，等待其他无线通信设备占用结束，再对信道进行检测，待信道空闲时再占用该信道。
LAA-LTE系统中由UE向基站发送探测参考信号(Sounding Reference Signal，简称SRS)，以进行无线上行信道的测量。图1为LAA-LTE系统中小区SRS子帧的结构示意图，其中，小区SRS子帧中包括一个用于UE发送SRS时间段，将该时间段称为SRS对应时间段，在该时间段上存在两种情况：一种情况为：存在至少一个UE在该时间段上发送SRS；另一种情况为：不存在任何一个UE在该时间段上发送SRS，对于在该时间段上不发送SRS的UE来讲，基站为该UE在该时间段所配置的频谱资源等为闲置状态，如图1 所示，小区SRS子帧中第一UE未被基站指示在SRS对应时间段上发送SRS，即第一UE在SRS对应时间段所配置的频谱资源为闲置状态，第二UE被基站指示在SRS对应时间段上发送SRS，当第一UE在SRS对应时间段的后一个时间段被调用时，即在后一个时间段上有PUSCH数据需要发送时，目前这种情况下，第一UE一定要在该后一个时间段上进行CCA，即在后一个时间段上无法发送PUSCH数据，从而造成资源浪费。
发明内容
本发明实施例提供一种信息传输方法及装置，从而达到节省资源的效果。
第一方面，本发明实施例提供一种信息传输方法，包括：
若用户设备UE确定满足预设条件，预设条件包括：UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；
UE确定UE在第一时间段上对应的SRS参数信息；
UE根据对应的SRS参数信息在第一时间段上发送SRS；
其中，第一时间段为SRS对应时间段，第二时间段为第一时间段的后一个时间段。
现有技术中，UE由于未被基站指示在第一时间段上发送SRS，因此，在第二时间段UE无法发送上行PUSCH数据，而要执行CCA，而本发明实施例UE在第一时间段上发送填充的SRS，那么在第二时间段上无需再执行CCA，可以直接发送PUSCH数据，从而提高资源利用率。
可选地，UE确定UE在第一时间段上对应的SRS参数信息，包括：
UE接收基站发送的配置消息，配置消息包括至少一组SRS参数信息，至少一组SRS参数信息用于配置UE在第一时间段上发送的SRS；
UE在至少一组SRS参数信息中确定对应的SRS参数信息。
其中，该配置消息用于配置UE在第一时间段上发送的SRS。
可选地，该方法还包括：UE预留第三时间段为空闲时间段；
其中，第三时间段为第一时间段的前一个时间段。
预留第三时间段目的是令其他UE可以在第三时间段上进行CCA。并且由于UE在第一时间段上填充SRS，因此对于其他UE可以少进行一次CCA， 提高了资源利用率。
可选地，UE预留第三时间段为空闲时间段，包括：UE接收所述基站发送的指示消息；所述UE根据所述指示消息预留第三时间段为空闲时间段。
可选地，时间段包括至少一个为单载波-频分多址SC-FDMA符号。
下面将介绍发明实施例提供一种信息传输方法，其中该方法与上述UE执行的方法相对应，对应技术效果相同，在此不再赘述。
第二方面，本发明实施例提供一种信息传输方法，包括：
基站确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
基站向UE发送配置消息，配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
其中，UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
可选地，该方法还包括：基站向UE发送指示消息；
指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
其中，所述第三时间段为所述第一时间段的前一个时间段。
下面将介绍发明实施例提供一种信息传输装置，其中装置部分与上述UE执行的方法对应，对应技术效果相同，在此不再赘述。
第三方面，本发明实施例提供一种信息传输装置，装置为用户设备UE，包括：确定模块和发送模块；
若确定模块确定满足预设条件，预设条件包括：UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；
确定模块，还用于确定UE在第一时间段上对应的SRS参数信息；
发送模块，用于根据对应的SRS参数信息在第一时间段上发送SRS；
其中，第一时间段为SRS对应时间段，第二时间段为第一时间段的后一个时间段。
可选地，装置还包括：接收模块；
接收模块，用于接收基站发送的配置消息，配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
确定模块，具体用于在至少一组SRS参数信息中确定所述对应的SRS参数信息。
可选地，该装置还包括：预留模块；
预留模块，用于预留第三时间段为空闲时间段；
其中，所述第三时间段为所述第一时间段的前一个时间段。
可选地，接收模块，还用于接收所述基站发送的指示消息；所述预留模块，具体用于根据所述指示消息预留第三时间段为空闲时间段。
可选地，时间段包括至少一个为单载波-频分多址SC-FDMA符号。
下面将介绍发明实施例提供一种信息传输装置，其中装置部分与上述基站执行的方法对应，对应技术效果相同，在此不再赘述。
第四方面，本发明实施例提供一种信息传输装置，装置为基站，包括：
确定模块，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
发送模块，用于向所述UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
可选地，发送模块，还用于向所述UE发送指示消息；
所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
其中，所述第三时间段为所述第一时间段的前一个时间段。
下面将介绍发明实施例提供一种信息传输装置，其中装置部分与上述UE执行的方法对应，对应技术效果相同，在此不再赘述。
第五方面，本发明实施例提供一种信息传输装置，装置为用户设备UE，包括：处理器和发送器；
若所述处理器确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
处理器，还用于确定所述UE在所述第一时间段上对应的SRS参数信息；
发送器，用于根据所述对应的SRS参数信息在所述第一时间段上发送SRS；
其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
可选地，装置还包括：接收器；
接收器，用于接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
处理器，具体用于在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
可选地，处理器还用于预留第三时间段为空闲时间段；
其中，所述第三时间段为所述第一时间段的前一个时间段。
可选地，接收器，还用于接收所述基站发送的指示消息；
所述处理器，具体用于根据所述指示消息预留第三时间段为空闲时间段。
可选地，所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
下面将介绍发明实施例提供一种信息传输装置，其中装置部分与上述基站执行的方法对应，对应技术效果相同，在此不再赘述。
第六方面，本发明实施例提供一种信息传输装置，装置为基站，包括：
处理器，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
发送器，用于向UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
可选地，所述发送器，还用于向所述UE发送指示消息；
所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
其中，所述第三时间段为所述第一时间段的前一个时间段。
本发明实施例提供一种信息传输方法及装置，该方法包括：若UE确定满足预设条件，该预设条件包括：UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；UE确定UE在第一时间段上对应的SRS参数信息；UE根据对应的SRS参数信息在第一时间段上发送SRS；现有技术中，UE由于未被基站指示在第一时间段上发送SRS，因此，在第二时间段UE无法发送PUSCH数据，而要执行CCA，而本发明实施例UE在第一时间段上发送填充的SRS，那么在第二时间段上无需再执行CCA，可以直接发送上行PUSCH数据，从而提高资源利用率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。
图1为LAA-LTE系统中小区SRS子帧的结构示意图；
图2为本发明一实施例提供的一种信息传输方法的流程图；
图3为本发明一实施例提供的帧结构示意图一；
图4为本发明一实施例提供的帧结构示意图二；
图5为本发明一实施例提供的帧结构示意图三；
图6为本发明一实施例提供的帧结构示意图四；
图7为本发明一实施例提供的帧结构示意图五；
图8为本发明一实施例提供的帧结构示意图六；
图9为本发明另一实施例提供的一种信息传输方法的流程图；
图10为本发明一实施例提供的一种信息传输装置的结构示意图；
图11为本发明另一实施例提供的一种信息传输装置的结构示意图；
图12为本发明再一实施例提供的一种信息传输装置的结构示意图；
图13为本发明又一实施例提供的一种信息传输装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本发明保护的范围。
本发明适用于可以工作在非授权频谱上的LTE系统，即LAA-LTE系统。其中基站可以通过CA技术将多个载波(例如非授权载波和授权载波，非授权载波和非授权载波)进行聚合，载波分配场景包括：1、授权频谱和非授权频谱共站部署，即授权频谱和非授权频谱被同一个基站聚合，该基站将授权载波设置为主载波(Primary Component Carrier，简称PCC)，将非授权载波设置为辅载波(Secondary Component Carrier，简称SCC)；2、授权频谱和非授权频谱非共站部署，例如授权频谱部署在宏基站，非授权频谱部署在低功率节点，比如：微基站、微微基站、家庭基站等，宏基站和低功率节点之间通过理想或非理想的回传链路连接；3、非授权频谱独立部署在基站上，即基站只使用非授权频谱，而不使用授权频谱。
本发明实施例所涉及的网元包括工作在非授权频谱上的基站和UE，其中基站包括宏基站、微小区、微基站、微微基站、家庭基站等；用户设备包括手机、笔记本电脑、平板电脑等终端设备。
在介绍本发明方案之前，首先介绍本发明的相关知识：
SRS用于基站对上行信道进行测量。UE发送SRS都是通过小区SRS子帧实现的，基站会通过高层信令配置小区SRS子帧的频域信息和时域信息等。同样，基站通过高层信令配置UE发送SRS所对应的码序列、频域信息以及时域信息等；其中，小区SRS子帧的时域信息具有周期性；基站为UE配置 的时域信息具有周期性或者非周期性，对于基站为UE配置的时域信息是周期性的情况，基站可以通过高层信令配置UE发送SRS的周期以及时域偏移，其中时域偏移指示UE在每个周期中的哪个时域位置上发送SRS，UE根据该配置周期性地发送SRS，对于基站为UE配置的时域信息是非周期性的情况，基站也会通过高层信令配置UE发送SRS的周期以及时域偏移，另外，基站通过动态信令上行授权(UL grant)中的SRS请求(SRS request)通知UE发送SRS，UE收到SRS请求后在最近的一个时域位置上发送一次SRS，需要注意的是，UE收到一个SRS请求只发送一次SRS。通常小区SRS子帧中用于发送SRS的时间段为固定时间段，比如：该时间段可以是小区SRS子帧中的最后一个单载波-频分多址(Single Carrier-Frequency Division Multiple Access，简称SC-FDMA)符号，对于某个小区SRS子帧，如果某个UE未被基站指示在该小区SRS子帧上发送SRS，那么该UE在该时间段对应的频域资源为空闲状态，以防止对其他发送SRS的UE造成干扰。如果多个UE同时在同一个小区SRS上发送SRS，那么这些SRS通过码序列、频域、梳齿域上的正交，避免彼此之间的干扰。如图1所示，小区SRS子帧配置周期为1ms，UE发送SRS的周期为2ms，UE1和UE3发送SRS的时域位置相同，通过配置不同的码序列实现正交；UE1和UE2发送SRS的时域位置不同。
在LAA-LTE上行传输中，UE可以采用单时隙CCA或者基于回退的CCA，完成侦听后接入信道发送PUSCH数据。
单时隙CCA的流程是：UE执行一个单时隙的CCA侦听，时隙长度为例如34us或者43us，将这个时隙内的接收到信道上的功率与能量检测门限比较，如果高于门限，即信道忙碌，则不接入信道，如果低于门限，即信道空闲，则立即接入信道；进一步的，如果信道被检测结果为忙碌，可以立即进入下一个CCA时隙，直到信道空闲，或者UE放弃发送信息。
基于回退的CCA流程是：UE首先在0～q之间均匀随机生成一个回退计数器，其中q为竞争窗长度，典型值例如[3,7]，或者[15,63]或者[15,1023]。UE以9us为粒度进行持续侦听，如果在一个CCA时隙内侦听到信道空闲，则将计数器减一，如果信道忙碌则将计数器挂起，直到下一次听到空闲时再继续减计数器。当计数器减为0时UE立即接入信道。
图2为本发明一实施例提供的一种信息传输方法的流程图，该方法的执 行主体为UE，该方法的应用场景为：UE满足预设条件，该预设条件包括：UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS(其中可以用“00”表示UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，“01”表示UE被基站指示在当前小区SRS子帧的第一时间段上发送SRS，本发明实施例对此不做限制)，并且UE被基站指示在第二时间段上发送上行数据。其中，第一时间段为SRS对应时间段，第二时间段为第一时间段的后一个时间段，该后一个时间段为与第一时间段相邻的连续时间段。本发明实施例中的时间段包括至少一个为单载波-频分多址SC-FDMA符号。该方法具体包括如下流程：
S201：UE确定UE在第一时间段上对应的SRS参数信息；
一种情况，UE接收到基站发送的配置消息，该配置消息用于配置UE在第一时间段上发送的SRS，该配置消息包括至少一组SRS参数信息，该至少一组SRS参数信息用于配置UE在第一时间段上发送的SRS；UE在至少一组SRS参数信息中确定对应的一组SRS参数信息，其中，当至少一组SRS参数信息为一组SRS参数信息，则UE直接确定该组SRS参数信息为第一时间段上对应的SRS参数信息；当至少一组SRS参数信息大于一组SRS参数信息，则UE在至少一个SRS参数信息中确定一组SRS参数信息为第一时间段上对应的SRS参数信息。该一组SRS参数信息包括以下至少一个参数的信息：1、基站为该UE配置的在第一时间段中SRS对应的码序列；2、发送SRS时对应的频域位置信息，用于指示该UE占用哪段带宽；3、发送SRS时对应的频域偏移信息，用于指示该UE占用的梳齿域资源。其中，SRS的频域位置指示该UE占用哪段带宽，即哪些连续的物理资源块(Resource Block，简称RB)，而SRS频域偏移指示UE占用这段带宽内的哪个梳齿；考虑到一个UE的SRS是每隔一个子载波占用一个子载波，因此同一段带宽内可以同时配置两个UE，分别占用奇数序号的子载波和偶数序号的子载波。在第一时间段上，该UE未被基站指示发送SRS，但是基站可能指示了其他UE发送SRS，且基站为这两个UE配置了相同的SRS参数。为了避免该UE在第一时间段上发送SRS对其他被基站指示发送SRS的UE发送的SRS造成干扰，基站额外为该UE配置至少一组用于在第一时间段发送的SRS参数信息，且所述至少一组SRS参数信息中每一组SRS参数与其他被基站指示发送SRS的UE 的SRS正交，包括SRS的码序列、频域位置、频域偏移中至少一个与其他被基站指示发送SRS的UE对应的SRS参数信息正交。比如：这里的至少一组SRS参数信息中每个SRS对应的码序列可以是基站根据第一时间段上其他UE待发送的SRS来确定，比如：至少一个SRS参数信息中每个SRS对应的码序列与其他UE待发送的SRS对应的码序列正交。应理解，配置消息是基站额外配置给该UE的SRS参数，可以与基站指示该UE在其他时间段发送SRS的参数信息相同，也可以不相同，如果不相同，则该UE在第一时间段采用配置消息配置的SRS参数发送SRS，在其他时间段采用基站指示发送SRS对应的参数信息。应理解，基站通过配置消息给多个UE配置SRS参数信息可以不正交，也可以正交；如果多个UE在同一第一时间段发送不正交的SRS信号，由于这些SRS信号仅用于UE占用信道，不用于基站执行信道估计，因此不会造成彼此干扰。
基站通过高层信令为UE配置了一次SRS参数信息，还通过配置消息为UE配置了一次SRS参数信息，对于UE来讲它可以通过高层信令中携带的SRS参数信息和配置消息中携带的SRS参数信息组数不同，识别哪组SRS参数信息是用于在第一时间段上发送SRS的，比如：当UE接收某个消息，该消息中携带两组SRS参数信息，那么UE可以确定这两组SRS参数信息是用于在第一时间段上发送SRS的，然而，当该消息中携带一组SRS参数信息，UE则无法识别；进一步地，基站可以在高层信令和配置消息中携带不同的标识，比如：高层信令中携带标识为1，配置消息中携带标识为0，那么当UE接收到消息之后，若读取到消息中携带的标识为0，那么UE确定该消息中携带的SRS参数信息是用于在第一时间段上发送SRS的；或者，基站可以在高层信令和配置消息中设置标识位或者字段，UE可以根据标识位或者字段的不同来识别用于在第一时间段上发送SRS的SRS参数信息。或者，UE可以根据接收到消息的时间先后顺序来识别哪组SRS参数信息是用于在第一时间段上发送SRS的，比如：首先接收到的消息中携带的SRS参数信息不是用于在第一时间段上发送SRS的SRS参数信息，第二次接收到的消息中携带的SRS参数信息则是用于在第一时间段上发送SRS的SRS参数信息。本发明实施例对如何识别哪个SRS参数信息是用于在第一时间段上发送SRS的不做限制。
进一步地，上述配置消息可以是：无线资源控制(Radio Resource Control， 简称RRC)消息；或者小区特定的控制信令，可以承载在物理下行控制信道或者增强物理下行控制信道中的公共搜索空间；或者用户特定的控制信令，可以承载在物理下行控制信道或者增强物理下行控制信道中的用户搜索空间，进一步地，可以承载在用户搜索空间中的UL grant中，或者混合自动重传指示物理信道中。
另一种情况，基站不向UE发送用于配置UE在第一时间段上发送的SRS的指示消息，这种情况下，UE使用基站为该UE在其他时间段上配置的码序列，该码序列作为UE在第一时间段上对应的SRS参数信息。应理解，基站通过高层信令将SRS的参数信息，包括码序列、频域位置和频域偏移信息配置给UE，即使UE未被基站指示在第一时间段上发送SRS，UE也可以利用这一参数信息配置SRS在第一时间段上发送；但是，该UE的第一时间段有可能是同一小区另一个UE被基站指示发送SRS的时间段，基站若给这两个UE配置了相同的SRS参数信息，则在这种情况下，该UE在第一时间段发送SRS对另一个UE的SRS造成了干扰；但是如果基站给小区内所有的UE都配置正交SRS参数信息，即，UE在被基站指示发送SRS的时间段所发送的SRS对应的参数信息与其他UE的SRS参数信息也是正交的，则UE在第一时间段上发送也不会对其他UE造成干扰。相比于基站通过配置消息为UE配置第一时间段上的SRS参数信息，这种情况基站不需要额外的SRS配置信令开销，但是由于正交的SRS资源数目有限，当小区UE数目较多的时候仍然有可能给多个UE配置冲突的SRS资源。
进一步地，当基站为UE配置的时域信息具有周期性，则第一时间段为当前小区SRS子帧中未针对该UE配置UE SRS对应的时间段；当基站为UE配置的时域信息具有非周期性，则第一时间段为当前小区SRS子帧中未针对该UE配置UE SRS对应的时间段；或者，第一时间段为当前小区SRS子帧中针对该UE配置了UE SRS对应的时间段，并且基站在该时间段未通过动态信令上行授权(UL grant)中的SRS请求(SRS request)通知UE发送SRS。
S202：UE根据对应的SRS参数信息在第一时间段上发送SRS。
UE在第一时间段上，在SRS参数信息包括的频域信息指示的频域位置和频域偏移上，发送SRS参数信息所包括的码序列，该在第一时间段上发送的SRS可以称为填充的SRS。
下面结合具体例子解释图2对应的方案，图3为本发明一实施例提供的帧结构示意图一，如图3所示，第一上行子帧为小区SRS子帧，第一UE未被基站指示在第一时间段(第一上行子帧的最后一个SC-FDMA符号)发送SRS，而UE被基站指示在第二时间段(第二上行子帧的第一个SC-FDMA符号)上发送上行数据，因此，在第一时间段上第一UE发送填充的SRS(对应图3中SRS码序列3)，接下来在第二时间段上无需执行CCA，而是直接发送PUSCH数据，全文中的第一UE即为上述的UE。
本发明实施例提供一种信息传输方法，包括：若UE确定满足预设条件，该预设条件包括：UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；UE确定UE在第一时间段上对应的SRS参数信息；UE根据对应的SRS参数信息在第一时间段上发送SRS；现有技术中，UE由于未被基站指示在第一时间段上发送SRS，因此，在第二时间段UE无法发送PUSCH数据，而要执行CCA，而本发明实施例UE在第一时间段上发送填充的SRS，那么在第二时间段上无需再执行CCA，可以直接发送PUSCH数据，从而提高资源利用率。
需要说明的是，上述预设条件包括：UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据，即默认可能存在第三UE被基站指示在第一时间段上发送SRS，当然，也有可能不存在第三UE被所述基站指示在所述第一时间段上发送SRS。
比如：图4为本发明一实施例提供的帧结构示意图二，如图4所示，第一上行子帧为小区SRS子帧，第一UE未被基站指示在第一时间段(第一上行子帧的最后一个SC-FDMA符号)发送SRS，UE被基站指示在第二时间段上(第二上行子帧的第一个SC-FDMA符号)发送上行数据，第三UE在第一时间段上发送SRS(对应图4中SRS码序列1)，第一UE在这种情况下，在第一UE上发送填充SRS(对应图4中SRS码序列3)，那么在第二时间段上第一UE和第三UE都无需再执行CCA，可以直接发送PUSCH数据，从而提高资源利用率。
更进一步地，该信息传输方法还包括：UE预留第三时间段为空闲时间段；相当于UE默认预留第三时间段为空闲时间段。其中，该第三时间段为第一时间段的前一个时间段。图5为本发明一实施例提供的帧结构示意图三，如 图5所示，第一UE预留第三时间段。默认情况即默认可能存在第二UE在第三时间段之前未发送上行数据，UE被基站指示在第二时间段上发送上行数据，因此，预留第三时间段目的是令第二UE可以在第三时间段上进行CCA。并且由于第一UE在第一时间段上填充SRS，因此对于第二UE可以少进行一次CCA，提高了资源利用率。
或者，第一UE接收基站发送的指示消息；该第一UE根据配置消息预留第三时间段为空闲时间段；其中，第一UE接收到指示消息可以确定可能存在第二UE在第三时间段之前未发送上行数据，而第二UE被基站指示在第二时间段上发送上行数据；例如配置消息可以使用“00”来表示，当不需要预留第三时间段为空闲时间段时，可以使用“01”来表示。图6为本发明一实施例提供的帧结构示意图四，如图6所示，由于存在第二UE在第三时间段之前未发送上行数据，而被基站指示在第二时间段上发送上行数据，因此，第一UE预留第三时间段，目的是令第二UE可以在第三时间段上进行CCA。并且由于第一UE在第一时间段上填充SRS，因此对于第二UE可以少进行一次CCA，提高了资源利用率。
现有技术中，无论是哪种情况，第一UE只预留第一时间段为空闲时间段，当当前子帧为小区SRS子帧时，那么可能存在第二UE要在第三时间段上进行CCA，这种只预留第一时间段会导致第二UE无法进行CCA，即无法抢占信道，从而无法发送PUSCH数据，降低了通信可靠性。而本发明实施例提供的信息传输方法确定当当前子帧为小区SRS子帧时，则默认预留第三时间段；或者，当接收到基站发送的基站发送的配置消息，则预留第三时间段，从而提高通信可靠性。
需要说明的是，本发明实施例还提供以下几种信息传输方法：
若第一UE确定上行子帧为非小区SRS子帧，并且第一UE接收到基站发送的指示消息，该指示消息用于指示第一UE预留时间段或者用于指示第一UE预留第一时间段，那么第一UE预留第一时间段为空闲时间段，图7为本发明一实施例提供的帧结构示意图五，如图7所示，第一上行子帧为非小区SRS子帧，则第一UE预留第一时间段为空闲时间段，该空闲时间段主要用于第二UE在第一时间段执行CCA。
若第一UE确定上行子帧为小区SRS子帧，并且第一UE被基站指示在 第一时间段上发送SRS，则第一UE直接在第一时间段上发送SRS，图8为本发明一实施例提供的帧结构示意图六，如图8所示，第一UE直接在第一时间段上发送SRS。
进一步地，上述方法中都是第一UE默认或者第一UE接收基站的指示预留第三时间段或者在第一时间段上填充SRS，然而，还可以是基站直接确定是否预留第三时间段和是否在第一时间段上填充SRS，确定之后，基站直接向第一UE发送指示消息，该指示消息用于指示第一UE是否预留第三时间段和是否在第一时间段上填充SRS。
更进一步地，根据LTE系统下行传输的标准规定，能量检测门限与信号发射功率成反比，即信号发射功率越低，能量检测门限越高，反之信号发射功率越高，能量检测门限越低。以20MHz带宽为例，具体的关系式为：
XThresh_max＝max(-72dBm,min(Tmax,(Tmax-TA+(PH-PTX))))，
其中XThresh_max表示能量检测门限，Tmax(dBm)＝-75dBm/MHz+10log10(BW)，TA＝10dB，PH＝23dBm为最大信号发射功率参考值，PTX为实际信号发射功率。对于LAA-LTE系统中的上行传输，也可以沿用这一规则，能量检测门限与信号发射功率成反比。在LAA-LTE系统中，SRS的发射功率谱密度定义为PUSCH功率谱密度加一个固定偏移值，但是SRS所占用的带宽与PUSCH不同，一方面，当发送SRS占用的物理资源块(Physical Resource Block，简称PRB)数目大于PUSCH占用的PRB数目时，发送SRS的功率会超过发送PUSCH数据的功率。考虑到本发明中，UE在小区SRS子帧发送SRS是作为填充信号占用信道的，而不是用于基站侧接收检测，因此当发送SRS的功率会超过发送PUSCH数据的功率时，连续上行传输的SRS与PUSCH数据的平均功率高于发送PUSCH数据的功率，会导致能量检测门限降低。在这种情况下，可以把SRS的发射功率谱密度降低，使SRS的发射功率与PUSCH数据的发射功率相同，从而使得在PUSCH数据前面发送SRS信号后，上行传输的能量检测门限仍然保持不变。另一方面，当发送SRS占用的PRB数目小于PUSCH数据占用的PRB数目时，或者SRS发射功率低于PUSCH数据发射功率，则不需要调整SRS发射功率谱密度。
图9为本发明另一实施例提供的一种信息传输方法的流程图，该方法的执行主体为基站，该方法包括如下流程：
S901：基站确定UE在第一时间段对应的至少一组SRS参数信息；
S902：基站向UE发送配置消息，该配置消息包括至少一组SRS参数信息，该至少一组SRS参数信息用于配置UE在所述第一时间段上发送的SRS。
其中，UE满足预设条件，该预设条件包括：UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且UE被基站指示在第二时间段上发送上行数据；第一时间段为SRS对应时间段，第二时间段为第一时间段的后一个时间段。
具体地，该SRS参数信息包括：基站为该UE配置的在第一时间段中SRS对应的码序列和/或发送SRS时对应的频域信息，该频域信息包括频域位置和/或频域偏移(即梳齿域资源)。为了避免在第一时间段上UE与其他UE发送SRS形成干扰，基站为UE配置的SRS对应的码序列和或频域信息与其他UE的SRS对应的码序列和/或频域信息正交，比如：这里的至少一组SRS参数信息中每个SRS对应的码序列可以是基站根据第一时间段上其他UE待发送的SRS来确定，比如：至少一个SRS参数信息中每个SRS对应的码序列与其他UE待发送的SRS对应的码序列正交。
进一步地，上述配置消息可以是：RRC消息；或者小区特定的控制信令，可以承载在物理下行控制信道或者增强物理下行控制信道中的公共搜索空间；或者用户特定的控制信令，可以承载在物理下行控制信道或者增强物理下行控制信道中的用户搜索空间，进一步地，可以承载在用户搜索空间中的UL grant中，或者混合自动重传指示物理信道中。
本发明实施例提供一种信息传输方法，包括：基站确定UE在第一时间段对应的至少一组SRS参数信息；基站向UE发送配置消息，该配置消息包括至少一组SRS参数信息，该至少一组SRS参数信息用于配置UE在所述第一时间段上发送的SRS，发送的SRS可以称为填充SRS，基站不是将所有的SRS参数信息发送给UE，而是向UE发送的至少一组SRS参数信息都是可以用于配置填充SRS的，使得UE只需要在至少一组SRS参数信息确定一组SRS参数信息，相对于在所有的SRS参数信息确定一组SRS参数信息效率要高。
更进一步地，该方法还包括：
基站向UE发送指示消息；指示消息用于指示UE预留第三时间段为空闲 时间段；其中，第三时间段为第一时间段的前一个时间段。
通过这种发送指示消息的方式，使得UE只有接收到指示消息才预留第三时间段为空闲时间段，当UE未接收到指示消息，则UE无需预留第三时间段为空闲时间段，从而达到节省资源的效果。
图10为本发明一实施例提供的一种信息传输装置的结构示意图，所述装置为用户设备UE，如图10所示，该装置包括：确定模块1001和发送模块1002；
若所述确定模块1001确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；所述确定模块1001还用于确定所述UE在所述第一时间段上对应的SRS参数信息；
所述发送模块1002用于根据所述对应的SRS参数信息在所述第一时间段上发送SRS；其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
本发明实施例的信息传输装置，可以用于执行图2对应的方法实施技术方案，其实现原理和技术效果类似，此处不再赘述。
可选地，所述装置还包括：接收模块1003；所述接收模块1003，用于接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；所述确定模块1001具体用于在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
可选地，该装置还包括预留模块1004；所述预留模块1004用于预留第三时间段为空闲时间段；其中，所述第三时间段为所述第一时间段的前一个时间段。
进一步地，接收模块1003，还用于接收所述基站发送的指示消息；所述预留模块1004，具体用于根据所述指示消息预留第三时间段为空闲时间段。
其中，所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
图11为本发明另一实施例提供的一种信息传输装置的结构示意图，所述装置为基站，包括：确定模块1101，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；发送模块1102，用于向所述UE 发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
本发明实施例的信息传输装置，可以用于执行图9对应的方法实施技术方案，其实现原理和技术效果类似，此处不再赘述。
可选地，所述发送模块1102，还用于向所述UE发送指示消息；所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；其中，所述第三时间段为所述第一时间段的前一个时间段。
图12为本发明再一实施例提供的一种信息传输装置的结构示意图，所述装置为用户设备UE，包括：处理器1201和发送器1202；
若所述处理器1201确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；所述处理器1201，还用于确定所述UE在所述第一时间段上对应的SRS参数信息；
所述发送器1202，用于根据所述对应的SRS参数信息在所述第一时间段上发送SRS；其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
本发明实施例的信息传输装置，可以用于执行图2对应的方法实施技术方案，其实现原理和技术效果类似，此处不再赘述。
可选地，所述装置还包括：接收器1203；所述接收器1203用于接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；所述处理器1201，具体用于在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
可选地，所述处理器1201还用于预留第三时间段为空闲时间段；其中，所述第三时间段为所述第一时间段的前一个时间段。
进一步地，接收器1203，还用于接收所述基站发送的指示消息；所述处理器1201，具体用于根据所述指示消息预留第三时间段为空闲时间段。
所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
图13为本发明又一实施例提供的一种信息传输装置的结构示意图，所述装置为基站，包括：处理器1301，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；发送器1302，用于向所述UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
本发明实施例的信息传输装置，可以用于执行图9对应的方法实施技术方案，其实现原理和技术效果类似，此处不再赘述。
可选地，所述发送器1302，还用于向所述UE发送指示消息；所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；其中，所述第三时间段为所述第一时间段的前一个时间段。
本领域普通技术人员可以理解：实现上述各方法实施例的全部或部分步骤可以通过程序指令相关的硬件来完成。前述的程序可以存储于一计算机可读取存储介质中。该程序在执行时，执行包括上述各方法实施例的步骤；而前述的存储介质包括：ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
最后应说明的是：以上各实施例仅用以说明本发明的技术方案，而非对其限制；尽管参照前述各实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分或者全部技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术方案的范围。

Claims (21)

  1. 一种信息传输方法，其特征在于，包括：
    若用户设备UE确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述UE确定所述UE在所述第一时间段上对应的SRS参数信息；
    所述UE根据所述对应的SRS参数信息在所述第一时间段上发送SRS；
    其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  2. 根据权利要求1所述的方法，其特征在于，所述UE确定所述UE在所述第一时间段上对应的SRS参数信息，包括：
    所述UE接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    所述UE在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
  3. 根据权利要求1或2所述的方法，其特征在于，还包括：
    所述UE预留第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
  4. 根据权利要求3所述的方法，其特征在于，所述UE预留第三时间段为空闲时间段，包括：
    所述UE接收所述基站发送的指示消息；
    所述UE根据所述指示消息预留第三时间段为空闲时间段。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
  6. 一种信息传输方法，其特征在于，包括：
    基站确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
    所述基站向所述UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  7. 根据权利要求6所述的方法，其特征在于，还包括：
    所述基站向所述UE发送指示消息；
    所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
  8. 一种信息传输装置，其特征在于，所述装置为用户设备UE，包括：确定模块和发送模块；
    若所述确定模块确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述确定模块，还用于确定所述UE在所述第一时间段上对应的SRS参数信息；
    所述发送模块，用于根据所述对应的SRS参数信息在所述第一时间段上发送SRS；
    其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  9. 根据权利要求8所述的装置，其特征在于，所述装置还包括：接收模块；
    所述接收模块，用于接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    所述确定模块，具体用于在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
  10. 根据权利要求8或9所述的装置，其特征在于，还包括：预留模块；
    所述预留模块，用于预留第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
  11. 根据权利要求10所述的装置，其特征在于，
    接收模块，还用于接收所述基站发送的指示消息；
    所述预留模块，具体用于根据所述指示消息预留第三时间段为空闲时间段。
  12. 根据权利要求8-11任一项所述的装置，其特征在于，所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
  13. 一种信息传输装置，其特征在于，所述装置为基站，包括：
    确定模块，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
    发送模块，用于向所述UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  14. 根据权利要求13所述的装置，其特征在于，
    所述发送模块，还用于向所述UE发送指示消息；
    所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
  15. 一种信息传输装置，其特征在于，所述装置为用户设备UE，包括：处理器和发送器；
    若所述处理器确定满足预设条件，所述预设条件包括：所述UE未被基站指示在探测参考信号小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述处理器，还用于确定所述UE在所述第一时间段上对应的SRS参数信息；
    所述发送器，用于根据所述对应的SRS参数信息在所述第一时间段上发送SRS；
    其中，所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  16. 根据权利要求15所述的装置，其特征在于，所述装置还包括：接收器；
    所述接收器，用于接收基站发送的配置消息，所述配置消息包括至少一组SRS参数信息，所述至少一组SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    所述处理器，具体用于在所述至少一组SRS参数信息中确定所述对应的SRS参数信息。
  17. 根据权利要求15或16所述的装置，其特征在于，
    所述处理器还用于预留第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
  18. 根据权利要求17所述的装置，其特征在于，
    接收器，还用于接收所述基站发送的指示消息；
    所述处理器，具体用于根据所述指示消息预留第三时间段为空闲时间段。
  19. 根据权利要求15-18任一项所述的装置，其特征在于，所述时间段包括至少一个为单载波-频分多址SC-FDMA符号。
  20. 一种信息传输装置，其特征在于，所述装置为基站，包括：
    处理器，用于确定用户设备UE在第一时间段对应的至少一个探测参考信号SRS参数信息；
    发送器，用于向所述UE发送配置消息，所述配置消息包括至少一个SRS参数信息，所述至少一个SRS参数信息用于配置所述UE在所述第一时间段上发送的SRS；
    其中，所述UE满足预设条件，所述预设条件包括：所述UE未被基站指示在当前小区SRS子帧的第一时间段上发送SRS，并且所述UE被基站指示在第二时间段上发送上行数据；
    所述第一时间段为SRS对应时间段，所述第二时间段为所述第一时间段的后一个时间段。
  21. 根据权利要求20所述的装置，其特征在于，
    所述发送器，还用于向所述UE发送指示消息；
    所述指示消息用于指示所述UE预留所述第三时间段为空闲时间段；
    其中，所述第三时间段为所述第一时间段的前一个时间段。
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