WO2016029826A1 - 使用非授权载波发送及接收信号的方法和装置 - Google Patents
使用非授权载波发送及接收信号的方法和装置 Download PDFInfo
- Publication number
- WO2016029826A1 WO2016029826A1 PCT/CN2015/087854 CN2015087854W WO2016029826A1 WO 2016029826 A1 WO2016029826 A1 WO 2016029826A1 CN 2015087854 W CN2015087854 W CN 2015087854W WO 2016029826 A1 WO2016029826 A1 WO 2016029826A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- unlicensed carrier
- subframe
- base station
- carrier
- reference signal
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 59
- 230000011664 signaling Effects 0.000 claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 36
- 230000008054 signal transmission Effects 0.000 claims description 9
- 230000002860 competitive effect Effects 0.000 claims description 7
- 239000000969 carrier Substances 0.000 description 18
- 238000001514 detection method Methods 0.000 description 15
- 238000001228 spectrum Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 10
- 238000004891 communication Methods 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- 238000013475 authorization Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000001994 activation Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 238000004220 aggregation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000013468 resource allocation Methods 0.000 description 1
Images
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
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
- H04W16/14—Spectrum sharing arrangements between different networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2626—Arrangements specific to the transmitter only
-
- 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
- H04L5/0042—Arrangements for allocating sub-channels of the transmission path intra-user or intra-terminal allocation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0006—Assessment of spectral gaps suitable for allocating digitally modulated signals, e.g. for carrier allocation in cognitive radio
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2647—Arrangements specific to the receiver only
- H04L27/2655—Synchronisation arrangements
- H04L27/2666—Acquisition of further OFDM parameters, e.g. bandwidth, subcarrier spacing, or guard interval length
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/0001—Arrangements for dividing the transmission path
- H04L5/0003—Two-dimensional division
- H04L5/0005—Time-frequency
- H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
- H04L5/001—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT the frequencies being arranged in component carriers
-
- 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
- H04L5/0044—Arrangements for allocating sub-channels of the transmission path allocation of payload
-
- 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
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
- H04L5/005—Allocation of pilot signals, i.e. of signals known to the receiver of common pilots, i.e. pilots destined for multiple users or terminals
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
- H04W72/044—Wireless resource allocation based on the type of the allocated resource
- H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/52—Allocation or scheduling criteria for wireless resources based on load
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W74/00—Wireless channel access
- H04W74/08—Non-scheduled access, e.g. ALOHA
- H04W74/0808—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA]
- H04W74/0816—Non-scheduled access, e.g. ALOHA using carrier sensing, e.g. carrier sense multiple access [CSMA] with collision avoidance
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L5/00—Arrangements affording multiple use of the transmission path
- H04L5/003—Arrangements for allocating sub-channels of the transmission path
- H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
Definitions
- This document relates to the field of communications, and more particularly to methods and apparatus for transmitting and receiving data using unlicensed carriers.
- LTE Long Term Evolution
- the resources can be shared. When multiple different communication systems are operated in the unlicensed spectrum, or when different operators of the same communication system operate in the unlicensed spectrum, some shared resources can be used to improve the spectrum efficiency.
- the unlicensed spectrum may be an important evolution direction of the wireless communication system, but at the same time there are also many problems. For example, there will be a variety of wireless systems in the unlicensed spectrum, which are difficult to coordinate with each other and have serious interference.
- LTE is deployed in unlicensed carriers and still needs to support the regulation of unlicensed carriers.
- the communication system when deployed in an unlicensed carrier, it needs to support the mechanism of listening and speaking.
- the competition mechanism is further introduced, that is, the neighboring system sites (generally the neighboring sites of the same system) can avoid the interference caused by the simultaneous use of the unlicensed carriers by the neighboring sites of the same system through the competition mechanism.
- a method for transmitting a signal using an unlicensed carrier is applied to a base station, and the method includes:
- the signal After preempting the unlicensed carrier usage right, transmitting a signal in a subframe after the remaining resource and/or the remaining resource, the signal includes one or more of the following: start symbol identification information, synchronization signal, reference signal, service data signal;
- Sending a signal in a subframe after the remaining resources and/or remaining resources including:
- it also includes:
- the reference signal includes one or more of a cell-specific reference signal CRS, a positioning reference signal PRS, a channel state information reference signal CSI-RS, and a sounding reference signal SRS; the reference signal competes only for the unlicensed carrier at the base station And then start transmitting in the remaining resources, and at least include one complete subframe; or, the reference signal starts to be sent in a subframe in which the base station competes to the unlicensed carrier; or, the base station competes to the unlicensed carrier The sub-frame in which the time is located begins to be sent a predefined number of times.
- the transmitting end immediately sends a reference signal after obtaining the use right of the unlicensed carrier, wherein when the reference signal includes the CSI-RS,
- the CSI-RS sent by the sending end is sent according to the CSI-RS configuration agreed with the receiving end in advance, or is sent according to the CSI-RS configuration notified to the receiving end by the authorized carrier in advance;
- the transmitting end sends the CSI-RS in the LTE OFDM symbol in the subframe in which the unlicensed carrier is contending, or the transmitting end starts transmitting in the next subframe of the subframe in which the competing to the unlicensed carrier CSI-RS.
- a method for receiving a signal by using an unlicensed carrier is applied to a receiving end, and the method includes:
- the signal comprising one or more of the following: start symbol identification information, synchronization signal, reference signal, service data signal;
- the control information corresponding to the service data is received in an authorized carrier or an unlicensed carrier, and the time domain location of the control information is a sub-portion corresponding to the time that the transmitting end competes for the unlicensed carrier. In the next subframe of the frame.
- the reference signal includes one or more of a cell-specific reference signal CRS, a positioning reference signal PRS, a channel state information reference signal CSI-RS, and a sounding reference signal SRS; only after competing for an unlicensed carrier only at the transmitting end Receiving the reference signal in the first OFDM symbol and receiving the reference signal in at least one complete subframe; or receiving the start period in a subframe in which the transmitting end contends to the unlicensed carrier a reference signal; or, starting from a subframe in which the transmitting end contends to the unlicensed carrier, the reference signal is received a predefined number of times.
- CRS cell-specific reference signal
- PRS positioning reference signal PRS
- CSI-RS channel state information reference signal
- SRS sounding reference signal
- the synchronization signal is received from the first complete subframe occupied by the transmitting end with the transmitting end.
- it also includes:
- the reference signal sent by the sending end or the transmitting end configuration is configured to receive the configuration information of the reference signal by using an RRC message or DCI signaling of the authorized carrier;
- the reference signal includes a CSI-RS, a CRS, a DMRS, a discovery signal, or a detective Listen to the RS.
- it also includes:
- the transmitting end protocol or the transmitting end configuration preempts the unlicensed carrier usage right as an event that triggers the CSI-RS transmission.
- the reference signal includes a CSI-RS
- the receiving end receives the CSI-RS according to the CSI-RS configuration information agreed with the transmitting end in advance; or the receiving end receives the CSI-RS according to the CSI-RS configuration received by the authorized carrier in advance;
- the CSI-RS is received in the number, or the receiving end starts to receive the CSI-RS in the next subframe of the subframe in which the transmitting end contends to the unlicensed carrier.
- it also includes:
- the transmitting end receives the contention of the competitive retreat time sent by the receiving end, and determines that the rewinding time point is located in the last OFDM symbol period, and the transmitting end does not send the signal in the remaining resources.
- the sending module is configured to: after the base station preempts the unlicensed carrier usage right, send a signal in the subframe after the remaining resource and/or the remaining resource, where the signal includes one or more of the following: start symbol identification information, synchronization signal, Reference signal, service data signal;
- the remaining resources include: a complete orthogonal frequency division multiplexing OFDM symbol located in a contention retreat window and competing to a non-authorized carrier usage right time point, or a base station competing for an unlicensed carrier usage right time point The complete OFDM symbol between the end times of the subframes at which the point in time is located.
- the sending module is configured to: when the signal includes a service data signal, send control information corresponding to the service data in an authorized carrier or an unlicensed carrier, where a time domain location of the control information is a base station competing for unauthorized The next subframe of the subframe corresponding to the carrier time.
- the sending module is configured to use a time point of competing for an unlicensed carrier as a starting point of the subframe, and divide the subframe backward from the starting point, and start in the first OFDM symbol of the first subframe after the division Send a signal.
- the sending module is configured to place an OFDM symbol according to an OFDM symbol duration from a time point of the subframe end to a time point at which the base station contends to an unlicensed carrier, until the base station is unable to circulate a complete OFDM symbol, and the base station is used to compete for the unlicensed carrier.
- the complete OFDM symbol after the time point is used to transmit the signal.
- it also includes:
- a configuration module configured to pre-arrange a time domain location of the synchronization signal to be transmitted with the receiving end, where the synchronization signal is only sent in the first 2 OFDM symbols after competing for the unlicensed carrier; or, the base station competes to the unlicensed carrier
- the next subframe of the subframe in which the time is located starts to be transmitted; or, starts from the next subframe of the subframe in which the non-authorized carrier is contending and is periodically transmitted or transmitted according to a predefined number of times; or, competing to non- After the carrier is authorized, the synchronization signal and/or the reference signal are sent in the unlicensed carrier to imply the duration information of the base station occupying the unlicensed carrier.
- the reference signal includes one or more of a cell-specific reference signal CRS, a positioning reference signal PRS, a channel state information reference signal CSI-RS, and a sounding reference signal SRS; the reference signal competes only for the unlicensed carrier at the base station And then start transmitting in the remaining resources, and at least include one complete subframe; or, the reference signal starts to be sent in a subframe in which the base station competes to the unlicensed carrier; or, the base station competes to the unlicensed carrier The sub-frame in which the time is located begins to be sent a predefined number of times.
- the start symbol identifier is used to identify a start position of a complete OFDM symbol in the remaining resources; the start symbol identifier is a sequence that is previously agreed by the base station and the receiving end or configured by the base station, and the base station and the receiving end agree to send the The OFDM position of the sequence in the remaining resources, when the base station configures the sequence corresponding to the start symbol identifier, the base station sends the configuration information of the start symbol identifier to the receiving end through the RRC message or the DCI signaling in the authorized carrier.
- the base station When the start symbol is identified as LTE PSS/SSS, the base station sends the start symbol identifier to be transmitted in a carrier frequency domain position different from the LTE PSS/SSS specified in 3GPP TS 36.211 V10.2.0; or the PSS/SSS of the start symbol identifier.
- the OFDM symbol interval different from the LTE PSS/SSS specified in 3GPP TS 36.211 V10.2.0 is maintained; or the chronological order of the PSS/SSS of the start symbol is different from the LTE PSS/ specified in 3GPP TS 36.211 V10.2.0 SSS chronological order.
- it also includes:
- the configuration module is set to pre-arrange or configure the transmitted reference signal with the receiving end, and reference
- the configuration information of the signal is sent to the receiving end by using an RRC message or DCI signaling of the authorized carrier;
- the reference signal includes a CSI-RS, a CRS, a DMRS, a discovery signal, or a monitored RS.
- the configuration module is further configured to: when the reference signal includes the CSI-RS, agree with the receiving end or configure to preempt the unlicensed carrier usage right as an event that triggers the CSI-RS transmission.
- the sending module is configured to: immediately after obtaining the use right of the unlicensed carrier, send the reference signal, where the reference signal includes the CSI-RS,
- the CSI-RS is sent according to a CSI-RS configuration agreed with the receiving end in advance, or is sent according to a CSI-RS configuration that is notified to the receiving end by the authorized carrier in advance;
- the CSI-RS is transmitted in an LTE OFDM symbol in a subframe in which the non-authorized carrier is contending, or the CSI-RS is in a next subframe of the subframe in which the UE is contending to the unlicensed carrier. Start sending.
- a device for receiving a signal using an unlicensed carrier is applied to a receiving end, the device comprising:
- the receiving module is configured to receive a signal from a subframe after the remaining resources and/or the remaining resources in the unlicensed carrier, where the signal includes one or more of the following: start symbol identification information, synchronization signal, reference signal, service data signal;
- the remaining resources include: a complete orthogonal frequency division multiplexing OFDM symbol located in a contention retract window of the transmitting end and competing for a right time point of use of the unlicensed carrier, or a time when the transmitting end competes for the use right of the unlicensed carrier
- the complete OFDM symbol between the points until the end of the subframe at which the point in time is located.
- the receiving module is configured to: when the signal includes a service data signal, receive control information corresponding to the service data in an authorized carrier or an unlicensed carrier, where a time domain location of the control information is a contention of the transmitting end Authorizes the next subframe of the subframe corresponding to the carrier time.
- it also includes:
- a configuration unit configured to pre-arrange the time domain location of the receiving synchronization signal with the transmitting end, where The synchronization signal is received in the first 2 OFDM symbols only after the transmitting end contends to the unlicensed carrier; or the next subframe in the subframe in which the transmitting end contends to the unlicensed carrier starts to receive; or Starts from the next subframe of the subframe in which the transmitting end contends to the unlicensed carrier and is periodically transmitted or received according to a predefined number of times.
- the reference signal includes one or more of a cell-specific reference signal CRS, a positioning reference signal PRS, a channel state information reference signal CSI-RS, and a sounding reference signal SRS; the receiving unit is set to transmit only only Receiving the reference signal in the first OFDM symbol after competing for the unlicensed carrier, and receiving the reference signal in at least one complete subframe; or the sub-carrier from the transmitting end to the unlicensed carrier
- the reference signal is received in a start period of the frame; or the reference signal is received at a predefined number of times from a subframe in which the transmitting end contends to the unlicensed carrier.
- the receiving module is further configured to learn, by receiving the synchronization signal and/or the reference signal sent in the unlicensed carrier, the duration information of the non-authorized carrier occupied by the transmitting end.
- the start symbol identifier is used to identify a starting position of a complete OFDM symbol in the remaining resources; the start symbol identifier is a sequence that is agreed by the receiving end and the transmitting end or configured by the sending end, and the receiving end and the sending end agree The OFDM location of the sequence in the remaining resources is sent.
- the sending end configures the sequence corresponding to the start symbol identifier
- the configuration information of the start symbol identifier is received by the RRC message or the DCI signaling in the authorized carrier.
- the receiving module is configured to: when the start symbol identifier is LTE PSS/SSS, receive the LTE PSS/SSS in a carrier frequency domain location different from the LTE PSS/SSS specified in 3GPP TS 36.211 V10.2.0; or receive When the PSS/SSS of the start symbol is identified, the OFDM symbol interval different from the LTE PSS/SSS specified in 3GPP TS 36.211 V10.2.0 is maintained; or the chronological order of the PSS/SSS receiving the start symbol identifier is different from that of 3GPP TS 36.211 The LTE PSS/SSS chronological order specified in V10.2.0.
- it also includes:
- the configuration module is configured to pre-arrange or receive the reference signal sent by the sending end, and receive the configuration information of the reference signal by using an RRC message or DCI signaling of the authorized carrier; the reference signal includes a CSI-RS, a CRS, DMRS, discovery signal or RS listening.
- it also includes:
- the configuration module is configured to: when the reference signal includes the CSI-RS, agree with the sending end or configure the preemptive use of the unlicensed carrier by the transmitting end as an event that triggers the CSI-RS transmission.
- the reference signal includes a CSI-RS
- the receiving module is set to:
- Embodiments of the present invention also provide a computer readable storage medium storing computer executable instructions for performing the method described above.
- the embodiments of the present invention enable the LTE system to reuse resources of the generated non-complete subframes in the process of competing for the unlicensed carrier usage rights, thereby avoiding waste of resources.
- Embodiment 1 is a schematic diagram of utilizing unlicensed carrier resources in Embodiment 1;
- Embodiment 2 is a schematic diagram of utilizing unlicensed carrier resources in Embodiment 2;
- Embodiment 3 is a schematic diagram of utilizing unlicensed carrier resources in Embodiment 3;
- FIG. 4 is a schematic structural diagram of a base station according to Embodiment 10.
- FIG. 5 is a schematic structural diagram of a receiving end of Embodiment 10.
- the embodiment of the present invention provides a method for transmitting a signal by using an unlicensed carrier. After the base station preempts the unlicensed carrier in the contention retract window, the base station uses the unlicensed carrier to reserve the remaining resources and/or remaining in the contention retract window.
- the subframe after the resource transmits one or more of the following signals: start symbol identification information, synchronization signal, reference signal, service data signal (ie, PDSCH of LTE, including system broadcast information).
- the remaining resources include: a complete orthogonal frequency division multiplexing OFDM symbol located in a contention retreat window and competing to a non-authorized carrier usage right time point, or a base station competing for an unlicensed carrier usage right time point until the moment The complete OFDM symbol between the end moments of the subframe in which the point is located.
- the base station sends the service data in the subframe corresponding to the time when the base station competes for the unlicensed carrier, the base station sends the control information corresponding to the service data in the authorized carrier, and the time domain of the control information.
- the location is in the next subframe of the subframe corresponding to the time when the base station contends to the unlicensed carrier; the base station may also send the control information in the unlicensed carrier, where the time domain location of the control information is that the base station is competing to the non-authentication Authorizes the next subframe of the subframe corresponding to the carrier time.
- the base station may send, by using the authorized carrier, one or more information related to the unlicensed carrier to the subordinate receiving end (for example, the UE): a starting point of the contention retract window, a contention retract window Within the time of retreat.
- the unlicensed carrier related information may also include unlicensed carrier frequency point configuration information, but when the unlicensed carrier supported by the receiving end and the base station are the same and are a unique set (including a small number of unlicensed carriers),
- the unlicensed carrier frequency point configuration information may be configured by default at the receiving end and the base station side, and is frequency allocation configuration information of the unlicensed carrier in the unique set.
- the base station includes, in the control information, a contention back-off window retreat time point, or It includes the same equivalent information as the function of the back-off point in the competitive fallback window.
- the equivalent information includes: an LTE OFDM symbol describing a base station transmitting data in a subframe corresponding to an unlicensed carrier moment.
- LTE OFDM symbol location information is a number of LTE OFDM symbols arranged from an end time of the subframe to a time when the base station contends to an unlicensed carrier; or LTE OFDM symbol location information is from the subframe The number of the LTE OFDM symbol to be arranged from the start time to the end time.
- the base station sends the unlicensed carrier frequency to the subordinate UE, and configures the unlicensed carrier to the UE.
- the UE also considers that the unlicensed carrier frequency point sent by the base station is the unlicensed carrier frequency point configured by the base station for itself.
- the carrier configuration and activation process in the carrier aggregation of the related art LTE can be avoided.
- the carrier configuration and activation process of the related art takes a long time and is not suitable for the configuration of the unlicensed carrier (because the unlicensed carrier competes once to use for too short a time, the relevant mechanism cannot be used for carrier configuration and activation).
- the starting point of the contention retract window is the starting time of the contention rewind window of the non-authorized carrier that the base station contends for a single time.
- the start time of the contention fallback window includes directly describing the start time of the contention fallback window, or indirectly describing the start time of the contention fallback window by the known duration.
- the starting point of the contention rewind window is described by the frame number and the sub-frame number.
- the frame number of the frame in which the starting point of the contention rewind window is located is first described, and then the sub-frame number in the frame is given.
- the frame number and the subframe number are arranged in the same manner as the frame number and the subframe number of the authorized carrier corresponding to the unlicensed carrier.
- the description of the frame number and the subframe number of the starting point of the contention retract window includes: the starting point of the contention retract window is located.
- the starting point of a subframe that is, the starting point of the subframe, serves as the starting point of the contention rewind window.
- the starting point of the subframe described by the frame number and the subframe number is the starting point of the contention rewind window; or the starting point of the contention rewind window is located at the end point of a subframe, that is, the ending point of the subframe is used as the contention rewind window.
- the end point of the subframe described by the frame number and the subframe number is the starting point of the contention rewind window.
- the contention time of the competition is a time when the base station participates in the competition for the unlicensed carrier, and the base station generates a backoff time in the contention retreat window.
- the base station performs interception on the unlicensed carrier.
- the result of the base station performing the interception is that the carrier is idle, and the base station considers that the self-authorization is obtained; if the base station performs the interception before the time arrives, the base station performs the interception and the unlicensed carrier appears. If it is busy, the base station suspends the interception and records the time point corresponding to the pause time, and considers that it has failed to compete for the unlicensed carrier this time.
- the base station and the subordinate receiving end are approximately The sequence of the synchronization signal sent by the base station in the unlicensed carrier that is contending is the same as the PSS/SSS sequence of the authorized carrier corresponding to the unlicensed carrier, or the PSS/SSS sequence is indicated in the configuration information sent in the authorized carrier. .
- the base station sends the reference signal immediately after obtaining the use right of the unlicensed carrier, where the reference signal includes the CSI-RS, and the CSI-RS sent by the base station is sent according to the CSI-RS configuration agreed with the UE in advance. , or the CSI-RS configuration that the base station previously notified by the authorized carrier.
- the base station transmits the LTE OFDM symbol in the subframe in which the CSI-RS is contending for the unlicensed carrier, or the base station transmits the CSI-RS to start transmitting in the next subframe of the subframe in which the CSI-RS is contending.
- the base station before the base station competes for the unlicensed carrier, the base station notifies the UE that after the base station competes for the unlicensed carrier, the base station sends one or more of the location, the period, and the sequence of the synchronization signal; after the base station contends to the unlicensed carrier, the base station sends One or more of the type, port, and period of the reference signal.
- the device further includes:
- the reference signal includes one or more of a cell-specific reference signal CRS, a positioning reference signal PRS, a channel state information reference signal CSI-RS, and a sounding reference signal SRS; the reference signal competes only at the base station Start transmitting in the remaining resources after the unlicensed carrier, and include at least one complete subframe; or, the reference signal starts to be sent in a subframe in which the base station competes to the unlicensed carrier; or, the base station competes The sub-frame in which the unlicensed carrier is located begins to be transmitted a predefined number of times.
- the device further includes:
- the configuration module is further configured to: when the reference signal includes the CSI-RS, agree with the UE or configure to preempt the unlicensed carrier usage right as an event that triggers the CSI-RS transmission.
- the control information obtains the equivalent information of the time point of the back-off in the competition fallback window.
- the equivalent information includes: LTE OFDM symbol position information describing a base station transmitting data in a subframe contending for an unlicensed carrier.
- the LTE OFDM symbol location information is a number of an LTE OFDM symbol that is arranged from the end time of the subframe to the time when the base station contends to the unlicensed carrier.
- the LTE OFDM symbol position information is a number of the LTE OFDM symbol that is arranged from the start time to the end time of the subframe.
- the starting point of the contention rewind window becomes the end point of the fixed duration.
- the description of the frame number and the subframe number of the starting point of the contention retracting window includes: the starting point of the fixed duration is located at a starting point of a subframe, that is, the starting point of the subframe is the starting point of the fixed duration.
- the starting point of the subframe described by the frame number and the subframe number is the ending point of the fixed duration; or the starting point of the fixed duration is located at the ending point of a subframe, that is, the ending point of the subframe as the fixed duration
- the end point of the subframe described by the frame number and the subframe number is the end point of the fixed duration.
- the contention time of the competition is a time when the base station participates in the competition for the unlicensed carrier, and the base station generates a backoff time in the contention retreat window.
- the base station performs interception on the unlicensed carrier.
- the result of the base station performing the interception is that the carrier is idle, and the base station considers that the self-authorization is obtained; if the base station performs the interception before the time arrives, the base station performs the interception and the unlicensed carrier appears. If it is busy, the base station pauses to listen and records the pause time corresponding to At the moment, I believe that I have failed to compete for the unlicensed carrier this time.
- the determining, by the UE, whether the base station obtains the use right of the unlicensed carrier includes: determining, by the UE, whether the associated base station sends the relevant signal/data, where the location of the associated signal/data is: the base station to which the UE belongs After preempting the unlicensed carrier in the contention window, the base station confirms the LTE OFDM symbol position corresponding to the remaining time in the subframe, starting from the time point of obtaining the unlicensed carrier usage right, and then transmitting the signal/data using the LTE OFDM symbol.
- the reference signal includes one or more of CRS, PRS, CSI-RS, and SRS.
- the reference signal receiving time domain position is: the first LTE OFDM symbol starts to be received only after the base station contends to the unlicensed carrier, and is received in at least one complete LTE subframe; or, when the base station competes for the unlicensed carrier The periodic reception is started in the subframe; or, the predetermined number of times is started in the subframe in which the base station competes for the unlicensed carrier.
- the remaining resources include: a complete orthogonal frequency division multiplexing OFDM symbol located in a contention retract window of the transmitting end and competing for a right time point of use of the unlicensed carrier, or a time when the transmitting end competes for the use right of the unlicensed carrier
- the complete OFDM symbol between the points until the end of the subframe at which the point in time is located.
- the receiving module is configured to: when the signal includes a service data signal, receive control information corresponding to the service data in an authorized carrier or an unlicensed carrier, where a time domain location of the control information is a sending end. In the next subframe of the subframe corresponding to the time of the unlicensed carrier.
- the receiving module is further configured to learn, by receiving the synchronization signal and/or the reference signal sent in the unlicensed carrier, duration information that the transmitting end occupies the unlicensed carrier.
- the start symbol identifier is used to identify a start position of a complete OFDM symbol in the remaining resources; the start symbol identifier is a sequence that is agreed by the receiver end and the sender end or configured by the sender end, and the UE and the UE
- the sending end stipulates that the OFDM position of the sequence in the remaining resources is sent.
- the sending end configures the sequence corresponding to the start symbol identifier, the configuration information of the start symbol identifier is received by the RRC message or the DCI signaling in the authorized carrier.
- the reference signal sent by the sending end or the transmitting end is configured in advance, and the configuration information of the reference signal is received by using an RRC message or a DCI signaling of the authorized carrier;
- the reference signal includes a CSI-RS, a CRS, a DMRS, Discover the signal or the RS that is listening.
- the configuration module is configured to: when the reference signal includes the CSI-RS, agree with the sending end or configure the preemptive use of the unlicensed carrier by the transmitting end as an event that triggers the CSI-RS transmission.
- Step 1 The base station selects a relatively idle unlicensed carrier as a candidate preemptive use unlicensed carrier by using a measurement or carrier selection mechanism.
- the base station may notify the UE of the frequency, bandwidth, and the like of the unlicensed carrier through the authorized carrier (if the bandwidth is fixed, no notification is needed). Because the unlicensed carrier available for access is in the unlicensed frequency band, the frequency information of the unlicensed carrier is notified to the subordinate UE, and the UE can be prevented from simultaneously receiving or blindly detecting data in multiple candidate unlicensed carriers. . This information can be transmitted to the UE when the RRC connection is established. The base station and the UE will consider that the base station passes the unlicensed carrier frequency of the UE, and the UE will serve as its own configuration carrier.
- Step 2 The base station acquires the start competition time of the unlicensed carrier usage right (the base station can listen to the fixed duration or receive the occupied duration information sent by the base station occupying the unlicensed carrier), and the base station participates in the unauthorized carrier usage right competition for the next time. Previously, the content of the competition fallback window start point is sent to the subordinate UE.
- the competition fallback window starting point information is calculated according to the timing of the licensed carrier (for example, the frame number of the licensed carrier, the subframe number, and the OFDM symbol). For example, when the carrier carrier and the unlicensed carrier perform carrier aggregation (CA), the subframes of the unlicensed carrier and the authorized carrier are aligned, so the base station can notify the UE by using the authorized carrier, and the base station participates in the contention retrieving window of the unlicensed carrier. Start point. For example, by convention, by frame number, The starting position of the subframe position described by the subframe number is the starting point of the contention rewind window of the base station that competes for the unlicensed carrier.
- CA carrier aggregation
- the UE is notified of the start point of the contention back-off window to help the UE clear the time domain range in which the base station may receive data.
- the UE may not perform reception and blind detection before the time point, and help the UE to save power.
- the base station Before the base station starts the next unlicensed carrier competition, the base station notifies the UE of the contention backtime in the next time of the competition, and the information is notified to the UE through the authorized carrier.
- the time of the retreat may be the remaining time of the last competition. For example, the first competitive random backoff time point is 50.
- the base station detects that the channel is busy, thereby stopping the competition.
- the base station's retreat time point is 30, and no re-generation is needed. Until the countdown point is 0, the next time you need to randomly generate a new time point value.
- Step 3 When the base station arrives at the retreat time point (the corresponding value of the retreat time point, when the countdown is 0), the base station always listens to the unlicensed carrier as idle, and the base station considers that the unlicensed carrier is preempted.
- the base station transmits a signal in the first OFDM symbol thereafter, wherein the signal includes: a synchronization signal, and various reference signals. If the base station considers that the unlicensed carrier is busy before the fallback time point arrives, the base station considers that the unlicensed carrier is not preempted, and the base station does not send a signal until the next reemption.
- the first OFDM symbol is determined as follows: as shown in FIG. 1, the base station starts between the time of the back-off of the contention fallback window and the start time of the next subframe, starting from the start time of the next subframe.
- the OFDM symbol is exhausted to the contention back-off window back-off time according to the OFDM symbol duration until a complete OFDM symbol cannot be discharged, and the first LTE OFDM symbol is the OFDM symbol closest to the back-off time point. Note that there may be no complete LTE OFDM symbols, and the base station will not transmit the aforementioned signals.
- Step 4 After receiving the foregoing information, the UE separately analyzes, and determines, according to the timing of the authorized carrier, the start time of the participating base station to compete for the unlicensed carrier and the time at which the data may be sent (after the back-off time in the contention retract window) Within one LTE OFDM symbol duration).
- the timings of the authorized carrier and the unlicensed carrier are the same, and the frame number and the subframe number are aligned. Therefore, the UE knows the frame number and the subframe number of the authorized carrier, and also knows the frame number and subframe of the unlicensed carrier. number.
- the UE determines the starting position of the first LTE OFDM that needs to be blindly detected according to the manner of determining the first LTE OFDM symbol according to the manner of determining the first LTE OFDM symbol in the contention window and the starting time of the next subframe.
- the starting position can be a small range, in order to prevent timing errors), then start A signal that may be sent by the base station to which the blind detection belongs (for example, a synchronization signal sent by the blind detection base station, for example, the base station and the UE advertise the LTE PSS/SSS in the first LTE OFDM symbol after the base station competes for the unlicensed carrier before competing)
- start A signal that may be sent by the base station to which the blind detection belongs (for example, a synchronization signal sent by the blind detection base station, for example, the base station and the UE advertise the LTE PSS/SSS in the first LTE OFDM symbol after the base station competes for the unlicensed carrier before competing)
- the blind detection is successful, it is considered that the affiliated base station preempts the unlicensed carrier, and can use these signals to perform necessary synchronization, measurement, and the like.
- the blind detection fails, the UE may consider that the belonging base station fails to preempt the unauthorized carrier.
- the blind detection of the UE has
- the UE can determine, according to the backoff time point in the contention backoff window sent by the base station, whether to perform signal detection after the base station competes for the unlicensed carrier. For example, when the base station informs the UE that the backoff time point is greater than a threshold, for example, when there is no complete OFDM symbol between the back-off time point and the next subframe, the UE may not perform the signal sent by the base station to which the blind detection belongs, thereby achieving energy saving. Effect.
- Embodiment 2 is similar to Embodiment 1, except that the unlicensed carrier information sent by the base station to the UE in Embodiment 2 does not include the backoff time point in the contention window.
- the signal sent to the UE further includes a service data signal, such as a PDSCH, and the remaining transmission signals are the same as in the first embodiment.
- the base station and the UE agree that after the base station preempts the unlicensed carrier, the base station transmits the PSS in the first LTE OFDM symbol, and the second LTE OFDM symbol transmits the SSS.
- the switching mode may also be adopted.
- the base station and the UE agree that the base station sends the SSS in the first LTE OFDM symbol after the unlicensed carrier is preempted, and the second LTE OFDM symbol transmits the PSS, so that the unlicensed carrier can be avoided.
- the base station notifies the UE of the sequence of the transmitted PSS/SSS, or pre-arranges the sequence of the PSS/SSS with the UE, for example, the agreement is the same as the sequence of the PSS/SSS of the corresponding authorized carrier.
- the base station further sends control information corresponding to the PDSCH in the authorized carrier.
- the base station may send the control information in a next subframe of a subframe of an authorized carrier aligned with a contention backoff window in an unlicensed carrier, for example, using (e)PDCCH Sending the control information.
- the base station may also send, in the authorized carrier, a contention retreat window describing the base station in the unlicensed carrier.
- the initial OFDM symbol information of the PDSCH is transmitted in a subframe.
- the information may be sent in the same subframe as the control information, or may be included in the control information.
- the UE determines that the base station starts to compete in the unlicensed carrier according to the non-authorized carrier information (the carrier frequency, the contention of the competition back-off window) sent by the base station, and the subframe timing of the authorized carrier. The start time of the authorized carrier. Then, the UE starts to receive all the data in the unlicensed carrier from the moment, and saves; then, the UE receives the control information and description in the next subframe of the subframe of the authorized carrier that competes with the unlicensed carrier for the back-off window alignment.
- the PDSCH starts information of an OFDM symbol. The UE determines whether the control information includes its own control information by means of blind detection.
- the received data is intercepted and decoded based on the control information.
- the UE may also blindly detect the PSS and the SSS (base station) according to the LTE OFDM symbol in the unlicensed carrier from the starting point of the contention retreat window. At this time, if the UE can detect the PSS/SSS or the PSS notified by the base station. /SSS, the UE can confirm that the subordinate base station contends to the unlicensed carrier, and confirms the initial LTE OFDM of the signal transmitted by the subordinate base station, and determines the reference signal sent by the base station from the saved data, and the reference signal can be used for synchronization, Measurement, etc.
- the subframes of the unlicensed carrier and the authorized carrier are aligned, and the base station emits the OFDM symbol used for transmitting the signal according to the OFDM symbol duration to the contention back-off window back-off time from the start time of the next subframe.
- the interception carrier is always idle, and the base station directly uses the time point as the start of the subframe.
- the subframe is divided backward according to the subframe duration of the LTE (as shown in FIG. 3), and the signal is transmitted in the divided subframe.
- the UE may also determine by using the control information in the authorized carrier, and the control information is transmitted in the same manner as in Embodiment 2, and the detection manner is also the same.
- the subframe between the unlicensed carrier and the corresponding authorized carrier is not aligned, and the base station and the UE need to agree in advance to establish a one-to-one correspondence between the subframe of the unlicensed carrier and the corresponding authorized carrier subframe, and then When the base station cross-carrier scheduling or UE cross-carrier feedback, the base station and the UE both transmit and receive in the authorized carrier according to the one-to-one correspondence.
- This embodiment can transmit and receive signals using an unlicensed carrier in the same manner as Embodiments 1, 2, and 3.
- the base station transmits the reference signal by using the remaining resources in the contention rewind window.
- the base station needs to notify the UE in advance or in advance with the UE, and solidify.
- the reference signal is a CSI-RS
- the base station can pre-agreed the CSI-RS period and port with the UE, so that the UE can no longer notify the UE about the configuration information of the CSI-RS period and port through the existing RRC message, saving Time.
- the UE side After detecting that the subordinate station preempts the unlicensed carrier, the UE side parses the corresponding reference signal from the received data, and sets it as channel measurement. In this way, the configuration delay problem of the existing reference signal can be avoided, thereby improving the interest rate efficiency of the base station in the time of grabbing the unlicensed carrier.
- the base station sends the following information to the UE through the authorized carrier: the unlicensed carrier configuration information, the starting point of the contention retract window, and the retreat time point in the contention retreat window.
- the unlicensed carrier configuration information is defined as follows: after the base station and the UE consider that the unlicensed carrier in the configuration information is successfully preempted by the base station, the carrier is a secondary component carrier that is configured by the base station and is in an active state. If the unassigned carrier is not occupied by the base station to which the UE belongs, the configuration is invalid.
- the configuration information may include the following parameters: a frequency point, a bandwidth, or a number of an unlicensed carrier (the number is a unified number when the national control divides the unlicensed carrier, and the number may indicate a frequency point, a bandwidth).
- Transmission of unlicensed carrier configuration information RRC message transmission, or DCI signaling transmission in the authorized carrier.
- the starting point of the contention rewind window is as follows: the first is that the starting point is the starting position of the subframe or the ending position of the subframe; the second is starting from an LTE OFDM in the subframe, preferably from the PDCCH.
- the number of PDCCH symbols can be fixed or changed.
- the starting point can be described by introducing three parameters, namely, a radio frame, a subframe, and an LTE OFDM symbol position to describe the position of the starting point, where the frame number, the subframe number, and the LTE OFDM symbol position refer to the corresponding authorization.
- Carrier The LTE OFDM symbol parameter is used as an optional parameter. Transmission of the starting point information of the competition fallback window: DCI signaling transmission, or RRC message transmission in the authorized carrier.
- the time point of the back-off in the competition fallback window is defined as follows: the base station is within the duration of the competition window. A random value is randomly generated, and the value corresponds to a retreat time point in the competition window, and the base station counts down from the value and decrements once, and the representative duration experiences a retreat unit within a competition window. Or, if the previous random value is not decremented to 0, the value of the previous pause is still used in the next competition.
- the back-off time point can be described by a numerical value corresponding to the bit.
- the transmission of the information of the fallback time point in the competition fallback window the RRC message transmission, or the DCI signaling transmission in the authorized carrier.
- the base station After the base station preempts the unlicensed carrier in the contention retract window, the remaining complete LTE OFDM symbols are determined, and the following signals are sent in the symbol or occupied duration according to the agreed or unlicensed carrier configuration information with the UE: Symbol identification information, synchronization signal, reference signal, PDSCH (including system broadcast messages).
- the configuration information of the foregoing signal may be sent in an authorized carrier by using an RRC message or DCI signaling.
- the start symbol identifies information.
- the starting symbol identifier is essentially a sequence.
- the sequence may be a sequence agreed by the base station and the UE, or a sequence configured by the base station, and the base station and the UE agree that the sequence is sent in the LTE OFDM position in the remaining resources.
- the sequence is a preamble code or an LTE PSS (/SSS).
- LTE PSS/SSS LTE PSS/SSS
- the preferred design is transmitted in the carrier's intermediate frequency domain position in different LTE PSS/SSS as specified in 3GPP TS 36.211 V10.2.0; or PSS/SSS remains different from 3GPP TS 36.211 V10.2.0.
- the specified LTE PSS/SSS interval, or the chronological order of PSS/SSS is different from the PSS/SSS chronological order of LTE specified in 3GPP TS 36.211 V10.2.0.
- the identification information may also be set for synchronization purposes. When transmitting, it is sent in the authorized carrier by using RRC message or DCI signaling.
- the base station and the UE agree or the base station configures the period of the synchronization signal transmission and the starting subframe position. Among them, including the presence or absence of the notification synchronization signal.
- the preferred synchronization signal is LTE PSS/SSS.
- the starting subframe position is described by means of a frame and a subframe.
- the base station can initiate a transmission with the UE from the first complete OFDM symbol occupied by the synchronization signal. Transmission of synchronization signal configuration information: transmission in an authorized carrier using RRC message or DCI signaling.
- the base station and the UE agree or the base station configures the transmitted reference signal, and sends the configuration information to the UE.
- the reference signals include CSI-RS, CRS, DMRS, discovery signal, and framed RS.
- the base station and the UE are configured or the base station is configured: the base station preempts the unlicensed carrier, and the base station starts to send the CSI-RS, and the UE determines that the belonging base station preempts the unlicensed carrier, that is, the non-authorized carrier There is an agreed CSI-RS transmission in the authorized carrier.
- the base station preempts the unlicensed carrier as an event that triggers the CSI-RS transmission, thereby eliminating the CSI-RS high-level configuration signaling.
- Transmission of configuration information of the reference signal transmission in the authorized carrier using RRC message or DCI signaling.
- the PDSCH is a UE data or a system broadcast message.
- its corresponding control information is transmitted in the authorized carrier, and the time domain location is in the next subframe of the subframe corresponding to the contention fallback window.
- the UE On the UE side, the UE receives the foregoing information, and according to the parameters in the information, determines an unlicensed carrier that may receive the signal transmitted by the subordinate base station, and a time point of receiving the signal (ie, a competitive retreat window retreat time point). According to the configuration information of the signal, it is determined that the signal transmitted by the belonging base station may be received. And receive its own PDSCH according to control signaling.
- the UE determines, according to the frame timing of the authorized carrier, that the unlicensed carrier time point needs to be received, and starts receiving data, and after the time point, the UE blindly detects the belonging start symbol identification information (sequence), thereby determining the remaining resources. Start LTE OFDM symbol position. And receiving the reference signal sent by the base station according to the configuration information, and performing measurement. The UE receives corresponding control information in the remaining resources from the next subframe of the authorized carrier, and parses its own data or broadcast information according to the control information.
- the other processing procedure on the UE side is the reverse process of the processing process on the base station side, and details are not described herein again.
- the base station sends the following information to the UE through the authorized carrier: the unlicensed carrier configuration information, the starting point of the contention rewind window.
- the base station After the base station preempts the unlicensed carrier in the contention retract window, the remaining LTE OFDM symbols are determined, and the following signals are sent in the OFDM symbol or the occupied duration according to the agreement or configuration information with the UE: synchronization signal, reference Signal, PDSCH (including system broadcast messages).
- the base station sends control information of the unlicensed carrier in the authorized carrier, and sends the control information in the next subframe of the subframe corresponding to the contention window.
- the control information includes resource allocation information of the PDSCH, and a start symbol position of the LTE OFDM in the remaining resources.
- the information can be sent through the DCI or sent independently of the control information of the unlicensed carrier.
- the UE On the UE side, the UE receives the above information, signals, and control information of the unlicensed carrier.
- the receiving time point of the signal is determined according to the related information in the signaling and control information and the data is parsed.
- the synchronization signal and the reference signal are received in the subsequent occupation time of the base station.
- the base station sends signaling 1 to the UE through the authorized carrier.
- the base station After the base station preempts the unlicensed carrier in the contention retract window, the base station determines the remaining complete LTE OFDM symbols, and sends the following signals in the symbol or the occupied duration according to the agreement or configuration information with the UE: the synchronization signal and the reference signal. , PDSCH (including system broadcast messages).
- the signaling 1 is sent by using the DCI in the authorized carrier.
- the signaling 1 includes: unlicensed carrier configuration information, LTE OFDM symbol position in the remaining resources, synchronization signal configuration information, reference signal configuration information, and control information corresponding to the PDSCH.
- the unlicensed carrier configuration, the symbol position in the remaining resources, the synchronization signal configuration, the reference signal configuration, and the trigger may be the same as in Embodiment 5.
- the UE On the UE side, the UE receives the data in each unlicensed carrier and saves it, monitors and detects each subframe of the authorized carrier, retrieves the DCI to find the above signaling 1, and decodes and acquires related information in the DCI. The saved data is further parsed based on the relevant information.
- the other processing procedure on the UE side is the reverse process of the processing process on the base station side, and details are not described herein again.
- the base station may send DCI signaling to notify the UE that the base station does not send a signal in the remaining resources, and the UE does not perform blind detection or reception and save;
- the base station sends the contention time to the UE, and the UE determines that when the backoff time point is within the last LTE OFDM symbol period, the UE considers that the base station does not send a signal in the remaining resources, and the UE does not perform blind detection. Or receive save.
- the base station determines the number of unlicensed carriers that can be preempted.
- the number of unlicensed carriers and frequency points are generally determined and configured by the operator for deployment at the time of deployment, for example, OAM mode configuration to the base station.
- the unlicensed carrier that the base station can then preempt can only be the configured unlicensed carriers.
- the base station sends the unlicensed carrier configuration information that it may contend to by the authorized carrier through the RRC message to the subordinate UE.
- the base station can be all configured to the subordinate UE. If the base station has more optional unlicensed numbers, the base station can Different unlicensed carriers are configured for different UEs, respectively, so as to reduce the number of unlicensed carriers that the UE listens to or receives.
- the unlicensed carrier configuration information may be semi-statically updated or not updated after configuration (eg, the base station has only one unlicensed carrier).
- the base station notifies the unlicensed carrier that is scheduled to contend to the UE before each competition.
- the base station can use the DCI information to send the unlicensed carrier configuration information to the UE.
- the base station configures the unlicensed carrier for the UE by using the RRC message and the DCI. The base station first configures the unlicensed carrier to the UE through the RRC message, and then configures the unlicensed carrier for the UE through the DCI before the base station competes, then The UE considers that when the base station competes this time, the unlicensed carrier that is competing is subject to the DCI signaling.
- the UE If the UE does not receive the DCI signaling sent by the base station before the next competition, the UE considers that the unlicensed carrier that the base station competes with before The RRC message notification is correct.
- the number of unlicensed carriers that are suitable for the base station to be used for the base station is large, the flexibility of the system competition and the probability of increasing the UE scheduling may be increased in the unlicensed carrier.
- the DCI signaling is configured for the unlicensed carrier, and can be described by using the convention bits in the existing DCI format, and the remaining bits are reserved.
- a new DCI format can also be designed to transmit the above signaling.
- the base station sends the contention time of the contention backoff window to the UE by using the authorized carrier, and the content of the contention time of the contention back window can be sent by using the DCI format.
- the base station may send the foregoing unlicensed carrier configuration information and the contention backoff window start time information to the UE through the same DCI to reduce the number of signaling transmissions.
- the base station performs the backoff competition of the unlicensed carrier at the start time of the determined contention backoff window. If the base station competes successfully, the base station determines the remaining resources in the subframe where the contention window is located, and the base station places the LTE from the end time of the subframe to the start time. OFDM symbol until the base station competes for an unlicensed carrier time point A complete LTE OFDM symbol can no longer be placed. In this case, the complete LTE OFDM symbol in the subframe is the remaining resource, and the base station sends the PDSCH of the UE in the remaining resources. The control signaling of the PDSCH is in the DCI format under the authorized carrier.
- the base station Transmitting in a PDCCH of one subframe; the base station transmitting the CSI-RS in the remaining resources and the subsequent occupation time, the base station transmitting the configuration information of the CSI-RS in the DCI format in the PDCCH of the next subframe of the licensed carrier (the CSI - the RS is set to the CSI measurement of the UE); the base station sends the start symbol identification information in the LTE OFDM symbol agreed by the remaining resources (in this case, as long as it is a synchronization function), for example, configuring the PSS/SSS of the LTE, and the timing is opposite to the LTE.
- the base station transmits the sequence of the start symbol identification information and the symbol position information in the DCI format in the foregoing PDCCH; assuming that the base station currently occupies 5 ms, the base station is configured in the complete subframe within the occupied duration, and is only sent in the first subframe.
- LTE PSS/SSS (mainly because this time is short), and the same PCI is used as the authorized carrier (the base station can also temporarily select the appropriate PCI configuration according to the PCI of the neighboring cell).
- the transmission configuration information of the step signal (including the transmitted subframe position, period, and sequence) is sent in the DCI format in the foregoing PDCCH, or may be previously agreed by the base station and the UE, for example, when the occupation duration is less than or equal to 5 and the remaining resources are sent.
- the start symbol identifies the information, and only the LTE PSS/SSS is sent in the first complete subframe.
- the base station competes in the PDCCH of the next subframe of the subframe corresponding to the fallback window in the authorized bearer, the foregoing various kinds of information are transmitted in the DCI format.
- the UE On the UE side, the UE receives the unlicensed carrier configuration information and the contention start window information of the contention, and the UE starts the competing backoff window of the corresponding unlicensed carrier (this embodiment assumes the start time of the subframe). ) Start receiving data and save it. Then, in the next subframe of the subframe corresponding to the contention fallback window, and the configuration information of the remaining resources and other parameters in the occupied duration of the base station are received in the authorized carrier. The UE performs blind detection in the PDCCH domain according to the agreed DCI format (blind detection is a prior art), and obtains the required DCI format signaling.
- blind detection is a prior art
- the related signaling is parsed, and synchronization, data interception, reference signal acquisition, and the like are respectively performed according to the parameters in the signaling.
- the other processing procedure on the UE side is the reverse process of the processing process on the base station side, and details are not described herein again.
- This embodiment provides a base station and a receiving end. As shown in FIG. 4, the base station in this embodiment includes a first sending module, where
- a first sending module configured to send a signal after using the remaining resources in the contention rewind window and/or the remaining resources in the contention after the contention of the unlicensed carrier is contending in the contention retract window of the base station, the remaining The resource includes: a complete orthogonal frequency division multiplexing OFDM symbol located in a contention retreat window and competing for a right of use of the unlicensed carrier, or a time when the base station competes for the use right of the unlicensed carrier until the time point The complete OFDM symbol between the end times of the subframe.
- the unlicensed carrier information includes one or more of the following information: unlicensed carrier configuration information, starting point information of a contention fallback window, and information of a backoff time point in a contention retract window;
- the signal includes one or more of the following: a start symbol identification, a synchronization signal, a reference signal, a traffic data signal.
- the control information includes a point in the contention backoff window, or a description of the base station in the unauthorized
- the position information of the OFDM symbol of the signal is transmitted in a subframe of the carrier.
- the base station further includes a signal configuration module, configured to pre-arrange or configure a period of sending a synchronization signal and a start subframe position with the receiving end.
- a signal configuration module configured to pre-arrange or configure a period of sending a synchronization signal and a start subframe position with the receiving end.
- the first receiving module is configured to receive a signal that is sent by the sending end by using a subframe after the remaining resources and/or the remaining resources in the contention retract window, where the remaining resources include: being located in a contention retract window and being unauthorized The complete orthogonal frequency division multiplexing OFDM symbol after the time of use of the carrier or the complete OFDM symbol of the base station competing for the use right time of the unlicensed carrier until the end time of the subframe where the time point is located.
- the determining module is configured to determine, according to the unlicensed carrier information, whether the base station obtains the use right of the unlicensed carrier.
- the control information includes a timeout point in the contention backoff window or location information describing an OFDM symbol in which the base station transmits the signal in a subframe of the unlicensed carrier.
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Mobile Radio Communication Systems (AREA)
Abstract
Description
Claims (52)
- 一种使用非授权载波发送信号的方法,应用于基站,该方法包括:抢占到非授权载波使用权后,在剩余资源和/或剩余资源之后的子帧发送信号,所述信号包括以下一个或多个:起始符号标识信息,同步信号,参考信号,业务数据信号;其中,所述剩余资源包括:位于竞争回退窗内且在竞争到非授权载波的使用权时刻点之后的完整正交频分复用OFDM符号,或者基站竞争到非授权载波的使用权时刻点直到该时刻点所在子帧的结束时刻之间的完整OFDM符号。
- 如权利要求1所述的方法,其中,当所述信号包括业务数据信号时,在授权载波或非授权载波中发送所述业务数据对应的控制信息,所述控制信息的时域位置为基站在竞争到非授权载波时刻所对应的子帧的下一个子帧中。
- 如权利要求1所述的方法,其中,在剩余资源和/或剩余资源之后的子帧发送信号,包括:在竞争窗内抢占到非授权载波后,从获得非授权载波使用权的时刻点开始,确认所处子帧中剩余时间对应的OFDM符号位置,使用OFDM符号发送信号。
- 如权利要求1所述的方法,其中,在剩余资源和/或剩余资源之后的子帧发送信号,包括:将竞争到非授权载波的时刻点作为子帧的起始点,从该起始点向后划分子帧,在划分后的第一个子帧的第一个OFDM符号中开始发送信号。
- 如权利要求4所述的方法,其中,从该子帧结束点向所述基站竞争到非授权载波的时刻点按照OFDM符号时长放置OFDM符号,直到不能排放一个完整的OFDM符号为止,使用基站竞争到非授权载波的时刻点之后的完整的OFDM符号用来发送信号。
- 如权利要求1所述的方法,还包括:与接收端事先约定发送同步信号的时域位置,其中,所述同步信号仅在竞争到非授权载波后,前2个OFDM符号中发送;或者,从基站竞争到非授权载波时所处的子帧的下一个子帧开始发送;或者,从竞争到非授权载波时所处的子帧的下一个子帧开始且周期性发送或按照预定义次数发送;或者,竞争到非授权载波后,在非授权载波中发送同步信号和/或参考信号来暗含基站本次占用非授权载波的时长信息。
- 如权利要求1所述的方法,还包括:当所述同步信号为主同步信号PSS/辅同步信号SSS时,与接收端约定,在非授权载波中的PSS/SSS的序列与非授权载波对应的授权载波的PSS/SSS序列相同,或者,在授权载波中发送的同步信号的配置信息中指示所述同步信号的PSS/SSS序列。
- 如权利要求1所述的方法,其中,所述参考信号,包括小区专用参考信号CRS、定位参考信号PRS、信道状态信息参考信号CSI-RS、以及探测参考信号SRS中的一个或多个;所述参考信号仅在基站竞争到非授权载波后在剩余资源中开始发送,并且至少包括一个完整的子帧;或者,所述参考信号从基站竞争到非授权载波时所处的子帧中开始周期发送;或者,从基站竞争到非授权载波时所处的子帧中开始以预定义次数发送。
- 如权利要求1所述的方法,其中,所述起始符号标识,用来标识剩余资源中完整OFDM符号的起始位置;所述起始符号标识为基站与接收端事先约定的或基站配置的序列,且基站与接收端约定发送所述序列在剩余资源中的OFDM位置,当基站配置起始符号标识对应的序列时,基站在授权载波中通过RRC消息或DCI信令发送所述起始符号标识的配置信息给接收端。
- 如权利要求9所述的方法,其中,当起始符号标识为LTE PSS/SSS时,基站发送起始符号标识在不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的载波频域位置发送;或者起始符号标识的PSS/SSS之间保持不同于3GPP TS 36.211 V10.2.0中规定的 LTE PSS/SSS的OFDM符号间隔;或者起始符号标识的PSS/SSS的时间先后顺序不同与3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS时间先后顺序。
- 如权利要求1所述的方法,还包括:通知接收端所述非授权载波中是否有同步信号,接收端事先约定或基站配置同步信号发送的周期和起始子帧位置。
- 如权利要求11所述的方法,其中,在授权载波中通过RRC消息或DCI信令向接收端发送同步信号配置信息,所述同步信号配置信息包括同步信号发送的周期和起始子帧位置;或者与接收端约定从基站占用的第一个完整子帧开始发送所述同步信号。
- 如权利要求1所述的方法,还包括:与接收端事先约定或配置发送的参考信号,并把参考信号的配置信息通过授权载波的RRC消息或DCI信令发送给接收端;所述参考信号包括CSI-RS、CRS、DMRS、发现信号或侦听的RS。
- 如权利要求13所述的方法,其中,当参考信号包括CSI-RS时,和接收端约定或配置抢占到非授权载波使用权作为触发CSI-RS发送的事件。
- 如权利要求13所述的方法,其中:发送端在获得非授权载波的使用权后,立即发送参考信号,其中,当参考信号包括CSI-RS,发送端发送的CSI-RS是按照事先与接收端约定的CSI-RS配置发送的,或者是按照事先通过授权载波通知接收端的CSI-RS配置发送的;或者发送端是在竞争到非授权载波时所处的子帧中的LTE OFDM符号中发送CSI-RS,或者,发送端是从竞争到非授权载波时所处子帧的下一个子帧中开始发送CSI-RS。
- 一种使用非授权载波接收信号的方法,应用于接收端,该方法包括:从非授权载波中的剩余资源和/或剩余资源之后的子帧中接收信号,所述信号包括以下一个或多个:起始符号标识信息,同步信号,参考信号,业务 数据信号;其中,剩余资源包括:位于发送端竞争回退窗内且在竞争到非授权载波的使用权时刻点之后的完整正交频分复用OFDM符号,或者发送端竞争到非授权载波的使用权时刻点直到该时刻点所在子帧的结束时刻之间的完整OFDM符号。
- 如权利要求16所述的方法,其中,当所述信号包括业务数据信号时,在授权载波或非授权载波中接收所述业务数据对应的控制信息,所述控制信息的时域位置为发送端在竞争到非授权载波时刻所对应的子帧的下一个子帧中。
- 如权利要求16所述的方法,其中,与发送端预先约定接收同步信号的时域位置,其中,所述同步信号的仅在发送端竞争到非授权载波后,前2个OFDM符号中接收;或者,从发送端竞争到非授权载波时所处的子帧的下一个子帧开始接收;或者,从发送端竞争到非授权载波时所处的子帧的下一个子帧开始且周期性发送或按照预定义次数接收。
- 如权利要求16所述的方法,其中,当所述同步信号为主同步信号PSS/辅同步信号SSS时,与所述发送端约定,在非授权载波中的PSS/SSS的序列与非授权载波对应的授权载波的PSS/SSS序列相同;或者在授权载波中接收所述同步信号的配置信息,所述配置信息指示所述同步信号的PSS/SSS序列。
- 如权利要求16所述的方法,其中,所述参考信号,包括小区专用参考信号CRS、定位参考信号PRS、信道状态信息参考信号CSI-RS、以及探测参考信号SRS中的一个或多个;仅在仅在发送端竞争到非授权载波后第一个OFDM符号中开始接收所述参考信号,并且至少在一个完整的子帧中接收所述参考信号;或者,从发送端竞争到非授权载波时所处的子帧中开始周期接收所述参考信号;或者,从发送端竞争到非授权载波时所处的子帧中开始以预定义次数接收所述参考信号。
- 如权利要求16所述的方法,其中,通过接收非授权载波中发送的同步信号和/或参考信号来获知所属发送端占用非授权载波的时长信息。
- 如权利要求21所述的方法,其中,根据与所述发送端约定的不同的同步信号和/或参考信号的序列代表不同的占用时长来获知所属发送端占用非授权载波的占用时长。
- 如权利要求16所述的方法,其中,所述起始符号标识,用来标识剩余资源中完整OFDM符号的起始位置;所述起始符号标识为接收端与发送端事先约定的或发送端配置的序列,且接收端与发送端约定发送所述序列在剩余资源中的OFDM位置,当发送端配置起始符号标识对应的序列时,在授权载波中通过RRC消息或DCI信令接收所述起始符号标识的配置信息。
- 如权利要求23所述的方法,其中,当起始符号标识为LTE PSS/SSS时,在不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的载波频域位置接收所述LTE PSS/SSS;或者接收起始符号标识的PSS/SSS时,保持不同于3GPP TS 36.211 V10.2.0中规定的LTEPSS/SSS的OFDM符号间隔;或者接收起始符号标识的PSS/SSS的时间先后顺序不同与3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS时间先后顺序。
- 如权利要求23所述的方法,还包括接收发送端通知所述非授权载波中是否有同步信号,与发送端事先约定或发送端配置同步信号发送的周期和起始子帧位置。
- 如权利要求25所述的方法,其中,在授权载波中通过RRC消息或DCI信令接收同步信号配置信息,所述同步信号配置信息包括同步信号发送的周期和起始子帧位置;或者与发送端约定从发送端占用的第一个完整子帧开始接收所述同步信号。
- 如权利要求23所述的方法,还包括:与发送端事先约定或发送端配置发送的参考信号,通过授权载波的RRC消息或DCI信令接收所述参考信号的配置信息;所述参考信号包括CSI-RS、 CRS、DMRS、发现信号或侦听的RS。
- 如权利要求27所述的方法,还包括:当参考信号包括CSI-RS时,和发送端约定或发送端配置抢占到非授权载波使用权作为触发CSI-RS发送的事件。
- 如权利要求16所述的方法,其中:当参考信号包括CSI-RS时,接收端按照事先与发送端约定的CSI-RS配置信息接收CSI-RS;或者接收端按照事先通过授权载波接收CSI-RS配置接收CSI-RS;或者接收端在发送端竞争到非授权载波时所处的子帧中的LTE OFDM符号中接收CSI-RS,或者接收端从发送端竞争到非授权载波时所处子帧的下一个子帧中开始接收CSI-RS。
- 如权利要求16所述的方法,还包括:接收发送端的通知,获知发送端不在剩余资源中发送信号;或者,发送端接收接收端发送的竞争回退时刻点信息,判断回退时刻点位于最后一个OFDM符号时段内时,发送端不在剩余资源中发送信号。
- 一种使用非授权载波发送信号的装置,应用于基站,该装置包括:发送模块,设置为在基站抢占到非授权载波使用权后,在剩余资源和/或剩余资源之后的子帧发送信号,所述信号包括以下一个或多个:起始符号标识信息,同步信号,参考信号,业务数据信号;其中,所述剩余资源包括:位于竞争回退窗内且在竞争到非授权载波的使用权时刻点之后的完整正交频分复用OFDM符号,或者基站竞争到非授权载波的使用权时刻点直到该时刻点所在子帧的结束时刻之间的完整OFDM符号。
- 如权利要求31所述的装置,其中,所述发送模块,设置为当所述信号包括业务数据信号时,在授权载波或非授权载波中发送所述业务数据对应的控制信息,所述控制信息的时域位置为基站在竞争到非授权载波时刻所对应的子帧的下一个子帧中。
- 如权利要求31所述的装置,其中,所述发送模块,设置为将竞争到非授权载波的时刻点作为子帧的起始点,从该起始点向后划分子帧,在划分后的第一个子帧的第一个OFDM符号中开始发送信号。
- 如权利要求31所述的装置,其中,所述发送模块,设置为从该子帧结束点向所述基站竞争到非授权载波的时刻点按照OFDM符号时长放置OFDM符号,直到不能排放一个完整的OFDM符号为止,使用基站竞争到非授权载波的时刻点之后的完整的OFDM符号用来发送信号。
- 如权利要求31所述的装置,还包括:配置模块,设置为与接收端事先约定发送同步信号的时域位置,其中,所述同步信号仅在竞争到非授权载波后,前2个OFDM符号中发送;或者,从基站竞争到非授权载波时所处的子帧的下一个子帧开始发送;或者,从竞争到非授权载波时所处的子帧的下一个子帧开始且周期性发送或按照预定义次数发送;或者,竞争到非授权载波后,在非授权载波中发送同步信号和/或参考信号来暗含基站本次占用非授权载波的时长信息。
- 如权利要求31所述的装置,其中,所述参考信号,包括小区专用参考信号CRS、定位参考信号PRS、信道状态信息参考信号CSI-RS、以及探测参考信号SRS中的一个或多个;所述参考信号仅在基站竞争到非授权载波后在剩余资源中开始发送,并且至少包括一个完整的子帧;或者,所述参考信号从基站竞争到非授权载波时所处的子帧中开始周期发送;或者,从基站竞争到非授权载波时所处的子帧中开始以预定义次数发送。
- 如权利要求31所述的装置,其中,所述起始符号标识,用来标识剩余资源中完整OFDM符号的起始位置;所述起始符号标识为基站与接收端事先约定的或基站配置的序列,且基站与接收端约定发送所述序列在剩余资源中的OFDM位置,当基站配置起始符号标识对应的序列时,基站在授权载波中通过RRC消息或DCI信令发送所述 起始符号标识的配置信息给接收端。
- 如权利要求37所述的装置,其中,当起始符号标识为LTE PSS/SSS时,基站发送起始符号标识在不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的载波频域位置发送;或者起始符号标识的PSS/SSS之间保持不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的OFDM符号间隔;或者起始符号标识的PSS/SSS的时间先后顺序不同与3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS时间先后顺序。
- 如权利要求31所述的装置,还包括:配置模块,设置为与接收端事先约定或配置发送的参考信号,并把参考信号的配置信息通过授权载波的RRC消息或DCI信令发送给接收端;所述参考信号包括CSI-RS、CRS、DMRS、发现信号或侦听的RS。
- 如权利要求39所述的装置,其中,所述配置模块还设置为,当参考信号包括CSI-RS时,和接收端约定或配置抢占到非授权载波使用权作为触发CSI-RS发送的事件。
- 如权利要求39所述的装置,其中,所述发送模块是设置为:在获得非授权载波的使用权后,立即发送参考信号,其中,当参考信号包括CSI-RS,所述CSI-RS是按照事先与接收端约定的CSI-RS配置发送的,或者是按照事先通过授权载波通知接收端的CSI-RS配置发送的;或者CSI-RS是在竞争到非授权载波时所处的子帧中的LTE OFDM符号中发送的,或者,所述CSI-RS是从竞争到非授权载波时所处子帧的下一个子帧中开始发送的。
- 一种使用非授权载波接收信号的装置,应用于接收端,该装置包括:接收模块,设置为从非授权载波中的剩余资源和/或剩余资源之后的子帧中接收信号,所述信号包括以下一个或多个:起始符号标识信息,同步信号,参考信号,业务数据信号;其中,剩余资源包括:位于发送端竞争回退窗内且在竞争到非授权载波 的使用权时刻点之后的完整正交频分复用OFDM符号,或者发送端竞争到非授权载波的使用权时刻点直到该时刻点所在子帧的结束时刻之间的完整OFDM符号。
- 如权利要求42所述的装置,其中,所述接收模块设置为,当所述信号包括业务数据信号时,在授权载波或非授权载波中接收所述业务数据对应的控制信息,所述控制信息的时域位置为发送端在竞争到非授权载波时刻所对应的子帧的下一个子帧中。
- 如权利要求42所述的装置,还包括:配置单元,设置为与发送端预先约定接收同步信号的时域位置,其中,所述同步信号的仅在发送端竞争到非授权载波后,前2个OFDM符号中接收;或者,从发送端竞争到非授权载波时所处的子帧的下一个子帧开始接收;或者,从发送端竞争到非授权载波时所处的子帧的下一个子帧开始且周期性发送或按照预定义次数接收。
- 如权利要求42所述的装置,其中,所述参考信号,包括小区专用参考信号CRS、定位参考信号PRS、信道状态信息参考信号CSI-RS、以及探测参考信号SRS中的一个或多个;所述接收单元,设置为仅在仅在发送端竞争到非授权载波后第一个OFDM符号中开始接收所述参考信号,并且至少在一个完整的子帧中接收所述参考信号;或者,从发送端竞争到非授权载波时所处的子帧中开始周期接收所述参考信号;或者,从发送端竞争到非授权载波时所处的子帧中开始以预定义次数接收所述参考信号。
- 如权利要求42所述的装置,其中,所述接收模块还设置为,通过接收非授权载波中发送的同步信号和/或参考信号来获知所属发送端占用非授权载波的时长信息。
- 如权利要求42所述的装置,其中,所述起始符号标识,用来标识剩余资源中完整OFDM符号的起始位置;所述起始符号标识为接收端与发送端事先约定的或发送端配置的序列,且接收端与发送端约定发送所述序列在剩余资源中的OFDM位置,当发送端配置 起始符号标识对应的序列时,在授权载波中通过RRC消息或DCI信令接收所述起始符号标识的配置信息。
- 如权利要求47所述的装置,其中,所述接收模块设置为,当起始符号标识为LTE PSS/SSS时,在不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的载波频域位置接收所述LTE PSS/SSS;或者接收起始符号标识的PSS/SSS时,保持不同于3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS的OFDM符号间隔;或者接收起始符号标识的PSS/SSS的时间先后顺序不同与3GPP TS 36.211 V10.2.0中规定的LTE PSS/SSS时间先后顺序。
- 如权利要求47所述的装置,还包括:配置模块,设置为与发送端事先约定或接收发送端配置发送的参考信号,通过授权载波的RRC消息或DCI信令接收所述参考信号的配置信息;所述参考信号包括CSI-RS、CRS、DMRS、发现信号或侦听的RS。
- 如权利要求49所述的装置,还包括:配置模块,设置为当参考信号包括CSI-RS时,和发送端约定或由发送端配置抢占到非授权载波使用权作为触发CSI-RS发送的事件。
- 如权利要求49所述的装置,其中,当参考信号包括CSI-RS时,所述接收模块是设置为:按照事先与发送端约定的CSI-RS配置信息接收CSI-RS;或者按照事先通过授权载波接收CSI-RS配置接收CSI-RS;或者在发送端竞争到非授权载波时所处的子帧中的LTE OFDM符号中接收CSI-RS,或者从发送端竞争到非授权载波时所处子帧的下一个子帧中开始接收CSI-RS。
- 一种计算机可读存储介质,存储有计算机可执行指令,所述计算机可执行指令用于执行权利要求1-30任一项的方法。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017511330A JP6617141B2 (ja) | 2014-08-25 | 2015-08-21 | ライセンスされていないキャリアを使用して信号を送信及び受信する方法及び装置 |
KR1020177008217A KR20170051460A (ko) | 2014-08-25 | 2015-08-21 | 비허여 반송파를 이용하여 신호를 송신 및 수신하는 방법과 장치 |
EP15836354.9A EP3188433B1 (en) | 2014-08-25 | 2015-08-21 | Method and device for using unlicensed carrier in transmitting and receiving signal |
US15/505,925 US10575184B2 (en) | 2014-08-25 | 2015-08-21 | Method and device for using unlicensed carrier in transmitting and receiving signal |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201410423088.8A CN104301273B (zh) | 2014-08-25 | 2014-08-25 | 使用非授权载波发送及接收信号的方法、基站及用户设备 |
CN201410423088.8 | 2014-08-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016029826A1 true WO2016029826A1 (zh) | 2016-03-03 |
Family
ID=52320845
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2015/087854 WO2016029826A1 (zh) | 2014-08-25 | 2015-08-21 | 使用非授权载波发送及接收信号的方法和装置 |
PCT/CN2015/087855 WO2016029827A1 (zh) | 2014-08-25 | 2015-08-21 | 非授权载波信息的发送及接收的方法和装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2015/087855 WO2016029827A1 (zh) | 2014-08-25 | 2015-08-21 | 非授权载波信息的发送及接收的方法和装置 |
Country Status (6)
Country | Link |
---|---|
US (2) | US10212606B2 (zh) |
EP (1) | EP3188433B1 (zh) |
JP (1) | JP6617141B2 (zh) |
KR (1) | KR20170051460A (zh) |
CN (3) | CN105162562B (zh) |
WO (2) | WO2016029826A1 (zh) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017535126A (ja) * | 2014-09-26 | 2017-11-24 | チャイナ アカデミー オブ テレコミュニケーションズ テクノロジー | 非権限周波数帯でのデータ伝送方法、ネットワーク機器、端末及びプログラム |
KR20190073566A (ko) * | 2016-11-08 | 2019-06-26 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 서브프레임 스케줄링 방법 및 기지국 |
US10396883B2 (en) | 2017-05-26 | 2019-08-27 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
US10440636B2 (en) | 2014-11-07 | 2019-10-08 | Panasonic Intellectual Property Corporation Of America | Synchronization for LTE licensed assisted access in unlicensed bands |
US10461847B2 (en) | 2017-05-26 | 2019-10-29 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
US10891451B2 (en) | 2016-10-05 | 2021-01-12 | Mox Networks, LLC | RFID-based rack inventory management systems |
Families Citing this family (160)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10356807B2 (en) | 2014-08-22 | 2019-07-16 | Qualcomm Incorporated | Techniques for transmitting and receiving channel occupancy identifiers over an unlicensed radio frequency spectrum band |
CN105162562B (zh) * | 2014-08-25 | 2019-11-15 | 中兴通讯股份有限公司 | 使用非授权载波发送及接收信号的方法和装置 |
WO2016048027A2 (ko) * | 2014-09-23 | 2016-03-31 | 엘지전자 주식회사 | 하향링크 신호 수신 방법 및 사용자기기와, 하향링크 신호 전송 방법 및 기지국 |
CN105634666B (zh) * | 2014-11-05 | 2019-08-16 | 电信科学技术研究院 | 一种在非授权频段上的数据传输方法及装置 |
EP3200515B1 (en) * | 2014-11-07 | 2019-08-28 | Huawei Technologies Co., Ltd. | Data transmission method and data transmission device |
CN112738899B (zh) * | 2014-11-15 | 2024-06-04 | 松下电器(美国)知识产权公司 | 通信装置、通信方法和集成电路 |
CN105898770B (zh) * | 2015-01-26 | 2020-12-11 | 中兴通讯股份有限公司 | 一种空频道检测方法及节点设备 |
US9615279B2 (en) * | 2015-01-27 | 2017-04-04 | Intel Corporation | Enhanced listen-before-talk (LBT) for unlicensed band operation with cell splitting |
WO2016119470A1 (zh) * | 2015-01-27 | 2016-08-04 | 中兴通讯股份有限公司 | 一种信号发送方法和装置 |
WO2016119466A1 (zh) * | 2015-01-27 | 2016-08-04 | 中兴通讯股份有限公司 | 发现信号的处理方法及装置 |
CN106162922B (zh) | 2015-01-27 | 2021-01-26 | 中兴通讯股份有限公司 | 发现信号的处理方法及装置 |
CN107211490A (zh) * | 2015-01-27 | 2017-09-26 | 富士通株式会社 | 基站和该基站的非许可频率候选确定方法 |
CN105991210B (zh) * | 2015-01-28 | 2019-03-26 | 中国移动通信集团公司 | 一种非授权频段上的参考信号发送方法、接收方法及装置 |
WO2016119142A1 (zh) * | 2015-01-28 | 2016-08-04 | 华为技术有限公司 | 基于移动通信系统实现lbt的基站、用户设备及方法 |
CN105991211B (zh) * | 2015-01-28 | 2020-01-21 | 中国移动通信集团公司 | 非授权频段下的参考信号发送方法、接收方法及装置 |
CN107135673B (zh) * | 2015-01-29 | 2021-04-13 | 苹果公司 | 用于授权辅助接入(laa)的无线资源管理(rrm)上报 |
CN105992346B (zh) * | 2015-01-29 | 2021-09-24 | 中兴通讯股份有限公司 | 一种数据传输方法及数据传输站点 |
EP3105975B1 (en) | 2015-01-30 | 2019-10-02 | Nec Corporation | Method and apparatus for performing fractional subframe transmission |
CN106031073B (zh) * | 2015-01-30 | 2020-05-15 | 深圳市奥闻科技有限公司 | 一种数据传输的方法、用户设备、传输设备及系统 |
CN106031268B (zh) * | 2015-01-30 | 2019-07-12 | 华为技术有限公司 | 通信方法、基站和用户设备 |
CN104579518B (zh) * | 2015-01-30 | 2017-01-11 | 深圳酷派技术有限公司 | Csi测量及反馈方法、csi测量及反馈系统和基站 |
US9743392B2 (en) * | 2015-01-30 | 2017-08-22 | Motorola Mobility Llc | Method and apparatus for signaling aperiodic channel state indication reference signals for LTE operation |
CN105992373B (zh) * | 2015-01-30 | 2020-09-15 | 中兴通讯股份有限公司 | 数据传输方法、装置、基站及用户设备 |
CN106031273B (zh) * | 2015-01-31 | 2019-08-27 | 华为技术有限公司 | 一种子帧的发送和接收方法、基站及用户设备 |
CN105991265B (zh) * | 2015-02-04 | 2019-04-19 | 上海诺基亚贝尔股份有限公司 | 基于前导序列辅助地实施非周期性参考信号传输的方法 |
US11678313B2 (en) * | 2015-02-04 | 2023-06-13 | Alcatel Lucent | Network controlled acquisition of uplink channels in unlicensed frequency bands |
CN105992386A (zh) * | 2015-02-12 | 2016-10-05 | 中兴通讯股份有限公司 | 非授权载波的激活方法及装置 |
WO2016131166A1 (zh) * | 2015-02-16 | 2016-08-25 | 华为技术有限公司 | 监听授权辅助接入小区的方法、设备和基站 |
US20160242039A1 (en) * | 2015-02-17 | 2016-08-18 | Telefonaktiebolaget L M Ericsson (Publ) | Methods, Computer Programs, Network Nodes and Communication Device |
CN105991274B (zh) * | 2015-03-03 | 2019-05-21 | 电信科学技术研究院 | 数据传输的方法、反馈信息传输方法及相关设备 |
WO2016148530A1 (en) * | 2015-03-17 | 2016-09-22 | Lg Electronics Inc. | Method and apparatus for performing data rate matching in licensed assisted access carrier in wireless communication system |
CN106034018A (zh) * | 2015-03-17 | 2016-10-19 | 中兴通讯股份有限公司 | 一种载波复用的方法和站点 |
EP3264662B1 (en) * | 2015-03-18 | 2019-11-13 | Huawei Technologies Co., Ltd. | Method and device for data transmission |
US9680617B2 (en) * | 2015-03-20 | 2017-06-13 | Acer Incorporated | Method of transmitting reference signal in unlicensed spectrum for LTE-LAA system and wireless device using the same |
CN106034309B (zh) * | 2015-03-20 | 2021-03-02 | 索尼公司 | 无线通信设备和无线通信方法 |
CN106160962B (zh) * | 2015-03-23 | 2019-07-26 | 联想(北京)有限公司 | 信息处理方法及基站 |
CN106161312B (zh) * | 2015-03-24 | 2019-01-01 | 中国移动通信集团公司 | 一种数据传输方法及装置 |
CN106162917B (zh) * | 2015-03-27 | 2021-06-04 | 电信科学技术研究院 | 一种非授权载波上传输资源的抢占方法及设备 |
CN106161317B (zh) * | 2015-04-08 | 2019-12-06 | 中国移动通信集团公司 | 一种同步方法及装置 |
US10122558B2 (en) * | 2015-04-10 | 2018-11-06 | Motorola Mobility Llc | Method and apparatus for reception of control signaling |
US10159108B2 (en) * | 2015-04-10 | 2018-12-18 | Motorola Mobility Llc | DRX handling in LTE license assisted access operation |
CN106160982B (zh) * | 2015-04-14 | 2021-03-19 | 联想(北京)有限公司 | 信息处理方法及电子设备 |
CN106162892B (zh) * | 2015-04-15 | 2019-10-29 | 上海诺基亚贝尔股份有限公司 | 非授权频段信道的占用方法及装置 |
CN106034345B (zh) | 2015-04-17 | 2021-02-09 | 索尼公司 | 终端侧、基站侧设备,终端设备,基站和无线通信方法 |
CN106162658B (zh) * | 2015-04-24 | 2021-07-23 | 中兴通讯股份有限公司 | 一种数据传输的方法 |
US10716139B2 (en) * | 2015-05-12 | 2020-07-14 | Lg Electronics Inc. | Method for adjusting contention window size in wireless access system supporting unlicensed band and device for supporting same |
CN107210938A (zh) * | 2015-05-14 | 2017-09-26 | 华为技术有限公司 | 检测免许可频谱信道的信号的方法、用户设备和基站 |
EP3295735B1 (en) * | 2015-05-14 | 2020-09-23 | Telefonaktiebolaget LM Ericsson (publ) | Method and apparatus for control information transmission |
CN106162898B (zh) * | 2015-05-15 | 2022-01-28 | 中兴通讯股份有限公司 | 非授权载波处理的方法及装置 |
CN106304092A (zh) * | 2015-05-15 | 2017-01-04 | 中兴通讯股份有限公司 | 一种非授权频谱的共享方法及装置 |
US10292158B2 (en) * | 2015-05-23 | 2019-05-14 | Qualcomm Incorporated | Techniques for adjusting clear channel assessment (CCA) window for transmissions in a shared radio frequency spectrum band |
US11218261B2 (en) * | 2015-06-01 | 2022-01-04 | Qualcomm Incorporated | Channel state information reference signals in contention-based spectrum |
US9967080B2 (en) * | 2015-06-10 | 2018-05-08 | Qualcomm Incorporated | Techniques for managing medium access to multi-channels of a shared radio frequency spectrum band |
WO2017000099A1 (zh) * | 2015-06-29 | 2017-01-05 | 华为技术有限公司 | 传输信道状态信息参考信号的方法和设备 |
CN105636090A (zh) * | 2015-06-30 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | 业务检测方法及业务检测系统、终端和基站 |
CN105636225B (zh) * | 2015-06-30 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | 业务检测方法及业务检测系统、终端和基站 |
CN105636099A (zh) * | 2015-06-30 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | 业务检测方法及业务检测系统、终端和基站 |
CN106332091B (zh) | 2015-07-01 | 2021-06-08 | 中兴通讯股份有限公司 | 一种非授权载波上图案的管理方法和装置 |
EP3322113B1 (en) * | 2015-07-10 | 2022-11-09 | LG Electronics Inc. | Method and device for transmitting discovery reference signal in wireless access system supporting unlicensed band |
CN106358298A (zh) * | 2015-07-16 | 2017-01-25 | 中兴通讯股份有限公司 | 非授权载波中数据的传输方法及装置 |
WO2017011934A1 (zh) * | 2015-07-17 | 2017-01-26 | 华为技术有限公司 | 一种信号发送、接收的方法及相关设备 |
CN106413096B (zh) * | 2015-07-31 | 2020-07-10 | 中兴通讯股份有限公司 | 上行载波选择方法、网络侧网元及用户设备 |
CN106452701B (zh) * | 2015-08-07 | 2020-06-09 | 中兴通讯股份有限公司 | 一种非授权多载波先听后说lbt执行方法和装置 |
CN106453182B (zh) * | 2015-08-07 | 2020-06-09 | 中兴通讯股份有限公司 | 前导发送方法和装置 |
CN107113277B (zh) * | 2015-08-07 | 2020-02-21 | 华为技术有限公司 | 一种数据传输方法、设备及系统 |
CN107079488B (zh) * | 2015-08-10 | 2020-05-08 | 华为技术有限公司 | 一种随机接入方法及装置 |
US11102814B2 (en) * | 2015-08-13 | 2021-08-24 | Apple Inc. | Discovery reference signal transmission for LTE in unlicensed band |
CN106452704B (zh) * | 2015-08-13 | 2020-10-16 | 中国移动通信集团公司 | 一种发现参考信号的发送方法、基站及终端 |
WO2017028000A1 (en) * | 2015-08-14 | 2017-02-23 | Lenovo Innovations Limited (Hong Kong) | Discovery signal transmission on unlicensed spectrum |
WO2017028204A1 (zh) * | 2015-08-18 | 2017-02-23 | 华为技术有限公司 | 一种数据传输方法、设备及系统 |
CN106470502B (zh) * | 2015-08-20 | 2019-09-17 | 中国移动通信集团公司 | 一种lte非授权频段的资源调度、使用方法及装置 |
CN107925928B (zh) | 2015-08-29 | 2020-12-18 | 华为技术有限公司 | 一种无线链路监测方法、相关设备和系统 |
CN106254047B (zh) * | 2015-08-31 | 2019-12-06 | 北京智谷技术服务有限公司 | 探测参考信号调度方法、发送方法、及其装置 |
CN106559844B (zh) | 2015-09-25 | 2020-03-24 | 电信科学技术研究院 | 一种上行传输资源调度及上行传输方法、装置 |
CN106559892B (zh) * | 2015-09-25 | 2021-01-12 | 上海诺基亚贝尔股份有限公司 | 用于会话前侦听的方法和设备 |
CN108141340B (zh) * | 2015-10-01 | 2020-11-24 | Lg 电子株式会社 | 在d2d通信中发送参考信号的方法和终端 |
CN106686603B (zh) * | 2015-11-05 | 2020-11-20 | 中兴通讯股份有限公司 | 信道干净评估检测方法和装置 |
WO2017078503A1 (ko) * | 2015-11-05 | 2017-05-11 | 주식회사 윌러스표준기술연구소 | 비인가 대역에서 신호 전송 방법, 장치 및 시스템 |
CN106685614B (zh) * | 2015-11-06 | 2019-09-17 | 电信科学技术研究院 | 一种指示信息的传输方法和设备 |
WO2017075822A1 (zh) * | 2015-11-06 | 2017-05-11 | 华为技术有限公司 | 数据传输的方法、接入网设备及用户设备 |
CN106714232B (zh) * | 2015-11-13 | 2021-07-30 | 中兴通讯股份有限公司 | 非授权载波的测量上报方法和终端及配置方法和基站 |
EP3169014B1 (en) * | 2015-11-16 | 2018-08-15 | ASUSTek Computer Inc. | Method and apparatus for signalling to downlink transmission for unlicensed channels in a wireless communication system |
CN106851827A (zh) * | 2015-12-04 | 2017-06-13 | 北京信威通信技术股份有限公司 | 用于非授权频谱的下行传输方法及系统 |
WO2017092047A1 (zh) * | 2015-12-04 | 2017-06-08 | 华为技术有限公司 | 数据传输的方法和设备 |
CN106912115A (zh) * | 2015-12-23 | 2017-06-30 | 北京信威通信技术股份有限公司 | 保留信号和初始信号的发送方法及装置 |
KR102131676B1 (ko) * | 2015-12-24 | 2020-07-08 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 채널 예약 신호 송신 방법 및 기지국 |
CN106961742B (zh) * | 2016-01-08 | 2019-06-28 | 上海朗帛通信技术有限公司 | 一种上行laa的通信方法和装置 |
CN106992804A (zh) * | 2016-01-20 | 2017-07-28 | 中兴通讯股份有限公司 | 一种探测参考信号的发送方法和装置 |
CN105634710B (zh) * | 2016-01-20 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | Srs发送方法、srs发送装置和终端 |
CN106992847B (zh) * | 2016-01-20 | 2021-01-26 | 中兴通讯股份有限公司 | 上行数据发送、接收方法、装置、终端及基站 |
EP3332594A4 (en) * | 2016-02-02 | 2019-03-27 | Nec Corporation | METHODS AND APPARATUSES FOR REALIZING UPLINK TRANSMISSION AND RECEPTION |
CN107027180B (zh) * | 2016-02-02 | 2019-08-30 | 中兴通讯股份有限公司 | 非授权载波上行数据的发送方法及终端 |
HUE054909T2 (hu) * | 2016-02-04 | 2021-10-28 | Guangdong Oppo Mobile Telecommunications Corp Ltd | Eljárás és készülék feltöltés irányú kapcsolati információ átvitelére nem engedélyezett vivõn |
CN107040357B (zh) * | 2016-02-04 | 2019-12-10 | 电信科学技术研究院 | 探测参考信号的传输方法及装置 |
CN108605312A (zh) * | 2016-02-05 | 2018-09-28 | 华为技术有限公司 | 传输控制数据的方法和装置 |
WO2017132995A1 (zh) | 2016-02-05 | 2017-08-10 | 广东欧珀移动通信有限公司 | 业务传输的方法和装置 |
CN105682102B (zh) * | 2016-03-17 | 2019-03-15 | 北京北方烽火科技有限公司 | 一种免授权信道竞争参数生成方法和装置 |
KR20180124838A (ko) | 2016-03-22 | 2018-11-21 | 광동 오포 모바일 텔레커뮤니케이션즈 코포레이션 리미티드 | 업링크 제어정보를 발송하기 위한 방법, 단말기 및 기지국 |
CN107231643A (zh) * | 2016-03-24 | 2017-10-03 | 北京信威通信技术股份有限公司 | 基于laa网络的上行数据传输方法及装置 |
CN105682243B (zh) * | 2016-03-25 | 2017-12-12 | 宇龙计算机通信科技(深圳)有限公司 | 一种调度信令的配置方法、接收方法和相关设备 |
CN108292977B (zh) | 2016-03-25 | 2021-07-16 | Oppo广东移动通信有限公司 | 传输反馈信息的方法、装置、设备及计算机可读存储介质 |
WO2017172829A1 (en) * | 2016-03-28 | 2017-10-05 | Intel IP Corporation | Listen-before-talk for uplink transmission |
CN105704834B (zh) * | 2016-04-01 | 2019-03-22 | 宇龙计算机通信科技(深圳)有限公司 | 非授权载波上前导码的配置方法、发送方法和相关设备 |
CN107294686A (zh) * | 2016-04-01 | 2017-10-24 | 中兴通讯股份有限公司 | 探测参考信号发送、接收方法、装置、ue及基站 |
US10757550B2 (en) * | 2016-04-07 | 2020-08-25 | Lg Electronics Inc. | Method for performing sensing during terminal-specific sensing period in wireless communication system, and terminal using same |
CN107371244B (zh) * | 2016-05-13 | 2023-06-02 | 中兴通讯股份有限公司 | Prach信息的通知、发送方法及装置 |
CN107370589B (zh) * | 2016-05-13 | 2023-04-07 | 中兴通讯股份有限公司 | 信号传输方法、装置及用户设备 |
KR20170134238A (ko) | 2016-05-27 | 2017-12-06 | 주식회사 아이티엘 | Nr 시스템을 위한 제어 채널 및 데이터 채널 송수신 방법 및 장치 |
WO2017204595A1 (ko) | 2016-05-27 | 2017-11-30 | 주식회사 아이티엘 | Nr 시스템을 위한 제어 채널 및 데이터 채널 송수신 방법 및 장치 |
CN106455116A (zh) * | 2016-06-13 | 2017-02-22 | 深圳市金立通信设备有限公司 | 一种信道探测参考信号跳频方法及终端 |
EP3461212A4 (en) * | 2016-06-17 | 2019-06-26 | Huawei Technologies Co., Ltd. | COMMUNICATION METHOD AND APPARATUS |
JP6663518B2 (ja) | 2016-06-28 | 2020-03-11 | 華為技術有限公司Huawei Technologies Co.,Ltd. | アンライセンス周波数バンドにおける通信方法、端末デバイス及びネットワーク・デバイス |
CN107634924B (zh) * | 2016-07-18 | 2020-08-11 | 中兴通讯股份有限公司 | 同步信号的发送、接收方法及装置、传输系统 |
CN107734710B (zh) | 2016-08-11 | 2023-05-05 | 中兴通讯股份有限公司 | 一种数据传输的方法及装置 |
US10251172B2 (en) * | 2016-08-25 | 2019-04-02 | Qualcomm Incorporated | Supporting different numerology configurations |
US10205581B2 (en) * | 2016-09-22 | 2019-02-12 | Huawei Technologies Co., Ltd. | Flexible slot architecture for low latency communication |
CN107888360B (zh) * | 2016-09-30 | 2020-10-16 | 华为技术有限公司 | 参考信号传输方法、设备及系统 |
CN107889113B (zh) * | 2016-09-30 | 2024-03-29 | 北京三星通信技术研究有限公司 | 在非授权频段上的载波监测和信号发送方法与设备 |
CN107959647B (zh) * | 2016-10-14 | 2022-02-25 | 中兴通讯股份有限公司 | 多载波系统的符号配置方法及装置、数据解调方法及装置 |
CN108207029B (zh) * | 2016-12-18 | 2020-05-26 | 上海朗帛通信技术有限公司 | 一种ue、基站中的方法和设备 |
US10356671B2 (en) * | 2016-12-20 | 2019-07-16 | Ofinno, Llc | LAA cell configuration between base stations |
CN108282904B (zh) * | 2017-01-06 | 2020-10-30 | 展讯通信(上海)有限公司 | 用于蜂窝网通信系统的免调度资源使用方法及装置 |
WO2018149051A1 (zh) * | 2017-02-20 | 2018-08-23 | 华为技术有限公司 | 一种同步信号的监听方法及设备 |
CN112272080B (zh) * | 2017-04-27 | 2022-03-29 | 上海朗帛通信技术有限公司 | 一种被用于无线通信的用户设备、基站中的方法和装置 |
EP3618333B1 (en) | 2017-05-05 | 2022-12-21 | Huawei Technologies Co., Ltd. | Uplink data sending method and apparatus |
EP3628137B1 (en) * | 2017-05-15 | 2022-01-26 | Huawei Technologies Co., Ltd. | Virtual carrier and virtual connection aggregation |
US20200137788A1 (en) * | 2017-06-13 | 2020-04-30 | Intel IP Corporation | Method and apparatus for communication in lte system on unlicensed spectrum |
CN109104754B (zh) | 2017-06-21 | 2020-06-26 | 维沃移动通信有限公司 | 一种SS block的搜索方法、相关设备和系统 |
CN109121198A (zh) | 2017-06-23 | 2019-01-01 | 维沃移动通信有限公司 | 一种非授权频段下的信息传输方法及网络设备 |
CN109391423B (zh) * | 2017-08-11 | 2020-11-03 | 华为技术有限公司 | 传输参数获取、数据传输方法和装置 |
CN109428700B (zh) * | 2017-08-29 | 2020-09-18 | 华为技术有限公司 | 一种发送信号的方法及设备 |
CN109699089B (zh) * | 2017-10-20 | 2020-11-20 | 中移(苏州)软件技术有限公司 | 一种信道接入方法及装置 |
US10779328B2 (en) * | 2017-11-27 | 2020-09-15 | Qualcomm Incorporated | Reference signal and preempted resources collision handling |
CN108055702B (zh) * | 2017-12-14 | 2020-12-04 | 威胜信息技术股份有限公司 | 基于时隙csma\ca模式的自适应退避方法 |
CN108401539B (zh) * | 2017-12-29 | 2021-09-21 | 北京小米移动软件有限公司 | 随机接入失败处理方法和装置 |
KR102699941B1 (ko) * | 2018-01-15 | 2024-08-29 | 소니그룹주식회사 | 비면허 무선 주파수 대역에 접속하기 위한 네트워크 노드, 무선 통신 디바이스 및 그 방법들 |
CN110166393B (zh) * | 2018-02-13 | 2021-06-25 | 展讯通信(上海)有限公司 | 同步信号块的发送、接收方法及装置 |
CN110300442B (zh) * | 2018-03-23 | 2020-07-28 | 维沃移动通信有限公司 | 一种信号发送方法及网络设备 |
AU2018415674B2 (en) * | 2018-03-27 | 2024-10-03 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method and device for transmitting synchronization signal block, and storage medium |
CN108496397B (zh) * | 2018-04-02 | 2021-08-03 | 北京小米移动软件有限公司 | 同步广播传输信号块的方法及装置 |
US10680745B2 (en) | 2018-04-11 | 2020-06-09 | Samsung Electronics Co., Ltd. | Blind detection of preempted resources in orthogonal frequency division multiplexing (OFDM) systems |
CN110719645B (zh) * | 2018-07-13 | 2021-12-14 | 维沃移动通信有限公司 | 一种信道检测指示方法、终端及网络设备 |
CN110784844B (zh) * | 2018-07-31 | 2021-09-14 | 维沃移动通信有限公司 | 信号传输方法和通信设备 |
JP7175378B2 (ja) * | 2018-08-03 | 2022-11-18 | ペキン シャオミ モバイル ソフトウェア カンパニー, リミテッド | スロットフォーマット指示方法、装置、機器、システム及び記憶媒体 |
CN112615704B (zh) * | 2018-08-10 | 2022-03-08 | 华为技术有限公司 | 一种同步信号的传输方法和装置 |
JP7285313B2 (ja) | 2018-08-15 | 2023-06-01 | ペキン シャオミ モバイル ソフトウェア カンパニー, リミテッド | タイムスロットフォーマット指示方法、装置、設備、システム及び記憶媒体 |
WO2020060367A1 (ko) * | 2018-09-21 | 2020-03-26 | 엘지전자 주식회사 | 무선 통신 시스템에서 무선 신호 송수신 방법 및 장치 |
CN118354435A (zh) | 2018-12-21 | 2024-07-16 | 北京小米移动软件有限公司 | 资源占用指示方法、装置以及资源占用确定方法、装置 |
CN109906573B (zh) * | 2019-02-01 | 2021-11-02 | 北京小米移动软件有限公司 | 传输格式确定方法、装置、基站、终端及存储介质 |
CN111585692B (zh) * | 2019-02-15 | 2021-10-26 | 华为技术有限公司 | 初始信号检测方法、装置 |
CN110035028B (zh) * | 2019-03-29 | 2020-02-21 | 宇龙计算机通信科技(深圳)有限公司 | 基于非授权频谱的同步信号传输方法、装置和存储介质 |
US20220240315A1 (en) * | 2019-06-25 | 2022-07-28 | Beijing Xiaomi Mobile Software Co., Ltd. | Downlink transmission detection method and apparatus, device, and storage medium |
US20220346144A1 (en) * | 2019-10-02 | 2022-10-27 | Ntt Docomo, Inc. | Terminal and communication method |
CN112954797B (zh) * | 2019-12-11 | 2022-09-30 | 大唐移动通信设备有限公司 | 一种下行控制信息dci的对齐方法及装置 |
CN111224725A (zh) * | 2019-12-31 | 2020-06-02 | 成都车晓科技有限公司 | 一种神经网络的机动设备的信息分析及管理方法及系统 |
WO2021237573A1 (zh) * | 2020-05-28 | 2021-12-02 | 北京小米移动软件有限公司 | 信息传输方法、装置及通信设备 |
CN111770473B (zh) * | 2020-06-24 | 2021-06-22 | 北京大学 | 一种蜂窝车联网的非授权频谱接入与载波聚合方法及装置 |
US11979911B2 (en) * | 2020-10-16 | 2024-05-07 | Apple Inc. | Semi-static channel access for traffic with different priorities |
CN114696982A (zh) | 2020-12-31 | 2022-07-01 | 维沃移动通信有限公司 | 参考信号配置方法、配置装置、电子设备和可读存储介质 |
CN115915178A (zh) * | 2021-08-06 | 2023-04-04 | 大唐移动通信设备有限公司 | 一种信号收发方法、设备、装置及存储介质 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012139278A1 (en) * | 2011-04-12 | 2012-10-18 | Renesas Mobile Corporation | Methods and apparatuses of spectrum sharing for cellular-controlled offloading using unlicensed band |
WO2013131267A1 (en) * | 2012-03-08 | 2013-09-12 | 5Renesas Mobile Corporation | Spectrum sensing and cross-carrier scheduling |
CN103517343A (zh) * | 2012-06-20 | 2014-01-15 | 上海无线通信研究中心 | 工作在ism频段的d2d通信系统的资源预调度方法 |
CN104301273A (zh) * | 2014-08-25 | 2015-01-21 | 中兴通讯股份有限公司 | 使用非授权载波发送及接收信号的方法、基站及用户设备 |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5850596A (en) * | 1995-05-24 | 1998-12-15 | Mci Corporation | Method and system for making unlicensed priority transmissions |
FR2872981B1 (fr) * | 2004-07-08 | 2006-09-08 | Alcatel Sa | Dispositif de gestion de ressources pour un reseau de communications a connexions inter-noeuds associees a des droits de preemption de ressources partagees et de priorite d'acces aux ressources |
CN101047432B (zh) * | 2006-06-23 | 2011-04-20 | 华为技术有限公司 | 一种分配上行资源的方法 |
CN101207535B (zh) * | 2006-12-18 | 2010-06-09 | 华为技术有限公司 | 网络接入方法、系统及设备 |
US7937068B2 (en) * | 2007-08-23 | 2011-05-03 | Motorola Solutions, Inc. | Emergency dispatch management and prioritization of communication resources |
US8675623B2 (en) * | 2009-02-01 | 2014-03-18 | Qualcomm Incorporated | Distributed prioritized contention for spectrum sharing |
CN102104961B (zh) * | 2009-12-22 | 2014-07-23 | 电信科学技术研究院 | 竞争资源的使用方法、系统及装置 |
CN101808409B (zh) * | 2010-04-01 | 2015-03-25 | 中兴通讯股份有限公司 | 一种lte-a系统中测量参考信号的配置方法和系统 |
US20140161034A1 (en) * | 2011-02-17 | 2014-06-12 | Renesas Mobile Corporation | Carrier with configurable downlink control region |
WO2012141462A2 (ko) * | 2011-04-11 | 2012-10-18 | 엘지전자 주식회사 | 이동통신시스템에서 수신확인정보 전송 방법 및 장치 |
EP2716122A1 (en) * | 2011-05-24 | 2014-04-09 | Broadcom Corporation | Channel access control |
GB2491139B (en) * | 2011-05-24 | 2014-02-19 | Broadcom Corp | Channel access control |
US9854446B2 (en) * | 2011-07-07 | 2017-12-26 | Lg Electronics Inc. | Method and apparatus for transmitting a signal in a wireless communication system |
GB2496646A (en) * | 2011-11-17 | 2013-05-22 | Renesas Mobile Corp | Mapping a feedback (ACK/NACK) radio resource |
US9031017B2 (en) * | 2012-06-21 | 2015-05-12 | Nokia Solutions And Networks Oy | Power control for LTE deployment in unlicensed band |
CN103532688B (zh) * | 2012-07-04 | 2016-11-02 | 电信科学技术研究院 | 一种跨频带载波聚合下的dci传输方法及装置 |
US9184886B2 (en) * | 2012-08-10 | 2015-11-10 | Blackberry Limited | TD LTE secondary component carrier in unlicensed bands |
CN103338454B (zh) * | 2013-05-09 | 2016-12-28 | 国家电网公司 | 用于电力系统的认知无线通信系统及mac协议实现方法 |
WO2015047002A1 (en) * | 2013-09-27 | 2015-04-02 | Samsung Electronics Co., Ltd. | Methods and apparatus for discovery signals for lte advanced |
US20150223075A1 (en) * | 2014-01-31 | 2015-08-06 | Intel IP Corporation | Systems, methods and devices for channel reservation |
CN104796218B (zh) * | 2014-01-17 | 2019-02-12 | 电信科学技术研究院 | 信号传输方法和装置 |
EP3091773B1 (en) * | 2014-01-26 | 2019-03-13 | Huawei Technologies Co., Ltd. | Competition method and apparatus for channel of unlicensed frequency band |
EP3091799B1 (en) * | 2014-01-29 | 2020-01-01 | Huawei Technologies Co., Ltd. | Synchronization method, base station, and user equipment |
US9949315B2 (en) * | 2014-02-24 | 2018-04-17 | Qualcomm Incorporated | Techniques for enabling asynchronous transmissions in an unlicensed radio frequency spectrum band |
CN105359604B (zh) * | 2014-02-28 | 2020-02-14 | 华为技术有限公司 | 一种使用非授权频谱通信的方法、设备及系统 |
US10499421B2 (en) * | 2014-03-21 | 2019-12-03 | Qualcomm Incorporated | Techniques for configuring preamble and overhead signals for transmissions in an unlicensed radio frequency spectrum band |
US10420054B2 (en) * | 2014-03-28 | 2019-09-17 | Qualcomm Incorporated | Wireless communications in a system that supports a first subframe type having a first symbol duration and a second subframe type having a second symbol duration |
US20150334744A1 (en) * | 2014-05-15 | 2015-11-19 | Qualcomm Incorporated | Load based lte/lte-a with unlicensed spectrum |
US10574515B2 (en) * | 2014-06-05 | 2020-02-25 | Lg Electronics Inc. | Method for configuring transmission opportunity section in wireless access system supporting unlicensed band, and device for supporting same |
US9532230B2 (en) * | 2014-06-05 | 2016-12-27 | Texas Instruments Incorporated | Method and apparatus for transmitting LTE waveforms in shared spectrum by carrier sensing |
US9986518B2 (en) * | 2014-07-03 | 2018-05-29 | Qualcomm Incorporated | Transmission and reception of synchronization signals over an unlicensed radio frequency spectrum band |
EP3163931B1 (en) * | 2014-07-31 | 2019-05-29 | Huawei Technologies Co. Ltd. | Data transmission methods and communications devices |
US9602322B2 (en) * | 2014-08-01 | 2017-03-21 | Qualcomm Incorporated | Transmission and reception of discovery signals over a radio frequency spectrum band |
US10581569B2 (en) * | 2014-08-22 | 2020-03-03 | Qualcomm Incorporated | Techniques for transmitting and receiving synchronization signals over an unlicensed radio frequency spectrum band |
US9769789B2 (en) * | 2014-08-22 | 2017-09-19 | Qualcomm Incorporated | Techniques for transmitting and receiving paging messages over an unlicensed radio frequency spectrum band |
-
2014
- 2014-08-25 CN CN201510439356.XA patent/CN105162562B/zh active Active
- 2014-08-25 CN CN201510439952.8A patent/CN105162563B/zh active Active
- 2014-08-25 CN CN201410423088.8A patent/CN104301273B/zh active Active
-
2015
- 2015-08-21 WO PCT/CN2015/087854 patent/WO2016029826A1/zh active Application Filing
- 2015-08-21 EP EP15836354.9A patent/EP3188433B1/en active Active
- 2015-08-21 JP JP2017511330A patent/JP6617141B2/ja active Active
- 2015-08-21 KR KR1020177008217A patent/KR20170051460A/ko active Search and Examination
- 2015-08-21 WO PCT/CN2015/087855 patent/WO2016029827A1/zh active Application Filing
- 2015-08-21 US US15/506,255 patent/US10212606B2/en active Active
- 2015-08-21 US US15/505,925 patent/US10575184B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2012139278A1 (en) * | 2011-04-12 | 2012-10-18 | Renesas Mobile Corporation | Methods and apparatuses of spectrum sharing for cellular-controlled offloading using unlicensed band |
WO2013131267A1 (en) * | 2012-03-08 | 2013-09-12 | 5Renesas Mobile Corporation | Spectrum sensing and cross-carrier scheduling |
CN103517343A (zh) * | 2012-06-20 | 2014-01-15 | 上海无线通信研究中心 | 工作在ism频段的d2d通信系统的资源预调度方法 |
CN104301273A (zh) * | 2014-08-25 | 2015-01-21 | 中兴通讯股份有限公司 | 使用非授权载波发送及接收信号的方法、基站及用户设备 |
Non-Patent Citations (1)
Title |
---|
See also references of EP3188433A4 * |
Cited By (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017535126A (ja) * | 2014-09-26 | 2017-11-24 | チャイナ アカデミー オブ テレコミュニケーションズ テクノロジー | 非権限周波数帯でのデータ伝送方法、ネットワーク機器、端末及びプログラム |
US10257820B2 (en) | 2014-09-26 | 2019-04-09 | China Academy Of Telecommunications Technology | Method and device for transmitting data in unauthorized frequency band |
US10440636B2 (en) | 2014-11-07 | 2019-10-08 | Panasonic Intellectual Property Corporation Of America | Synchronization for LTE licensed assisted access in unlicensed bands |
US10891451B2 (en) | 2016-10-05 | 2021-01-12 | Mox Networks, LLC | RFID-based rack inventory management systems |
KR20190073566A (ko) * | 2016-11-08 | 2019-06-26 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 서브프레임 스케줄링 방법 및 기지국 |
KR102227613B1 (ko) * | 2016-11-08 | 2021-03-12 | 후아웨이 테크놀러지 컴퍼니 리미티드 | 서브프레임 스케줄링 방법 및 기지국 |
US11172496B2 (en) | 2016-11-08 | 2021-11-09 | Huawei Technologies Co., Ltd. | Subframe scheduling method and base station |
US10396883B2 (en) | 2017-05-26 | 2019-08-27 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
US10461847B2 (en) | 2017-05-26 | 2019-10-29 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
US10887005B2 (en) | 2017-05-26 | 2021-01-05 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
US11716137B2 (en) | 2017-05-26 | 2023-08-01 | Qualcomm Incorporated | Terrestrial wireless positioning in licensed and unlicensed frequency bands |
Also Published As
Publication number | Publication date |
---|---|
EP3188433A4 (en) | 2017-08-30 |
WO2016029827A1 (zh) | 2016-03-03 |
US10212606B2 (en) | 2019-02-19 |
EP3188433B1 (en) | 2019-08-21 |
JP6617141B2 (ja) | 2019-12-11 |
CN104301273A (zh) | 2015-01-21 |
CN105162562A (zh) | 2015-12-16 |
US20170353866A1 (en) | 2017-12-07 |
CN105162563A (zh) | 2015-12-16 |
CN105162562B (zh) | 2019-11-15 |
JP2017530616A (ja) | 2017-10-12 |
KR20170051460A (ko) | 2017-05-11 |
US20170280331A1 (en) | 2017-09-28 |
CN105162563B (zh) | 2020-07-10 |
CN104301273B (zh) | 2020-03-10 |
EP3188433A1 (en) | 2017-07-05 |
US10575184B2 (en) | 2020-02-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016029826A1 (zh) | 使用非授权载波发送及接收信号的方法和装置 | |
US11224070B2 (en) | Communications device and method collision avoidance on shared communications resources | |
US10764914B2 (en) | Uplink information processing method and apparatus | |
CN108024310B (zh) | 用于传输数据的方法、终端设备和网络设备 | |
US10812228B2 (en) | Communication system using a self-contained subframe including downlink and uplink signals | |
CN107409419B (zh) | 针对包括未许可频谱的独立式基于竞争的通信的增强型prach | |
WO2015180551A1 (zh) | 信息发送方法、信息接收方法、装置及系统 | |
CN105357162B (zh) | 一种信号处理方法、基站和终端 | |
US9532204B2 (en) | Cellular network assisted device to device (D2D) discovery | |
CN112335323B (zh) | 上行控制数据传输涉及的用户设备和基站 | |
US10098154B2 (en) | Method and apparatus for detection and resolution of resource collision in a peer-to-peer network | |
KR20170056527A (ko) | 비면허 스펙트럼 상에서의 셀 검출, 동기화 및 측정 | |
KR20170043539A (ko) | 면허 및 비면허 대역에 대한 통신 | |
WO2016000549A1 (zh) | 资源抢占方法、站点及计算机存储介质 | |
WO2016050196A2 (zh) | 一种蜂窝通信中的laa传输的基站、ue中的方法和设备 | |
CN103457710A (zh) | 一种增强型物理下行控制信道的使能方法、设备及系统 | |
EP4042814B1 (en) | Operation of wireless communication devices in unlicensed spectrum for frame-based equipment (fbe) networks | |
KR20220137344A (ko) | 무선 통신 시스템에서 drx 동작 방법 및 장치 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 15836354 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2017511330 Country of ref document: JP Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
REEP | Request for entry into the european phase |
Ref document number: 2015836354 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2015836354 Country of ref document: EP |
|
ENP | Entry into the national phase |
Ref document number: 20177008217 Country of ref document: KR Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15505925 Country of ref document: US |