WO2018201474A1 - Uplink data transmission method and device - Google Patents
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- WO2018201474A1 WO2018201474A1 PCT/CN2017/083310 CN2017083310W WO2018201474A1 WO 2018201474 A1 WO2018201474 A1 WO 2018201474A1 CN 2017083310 W CN2017083310 W CN 2017083310W WO 2018201474 A1 WO2018201474 A1 WO 2018201474A1
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- H04W74/08—Non-scheduled access, e.g. ALOHA
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- the embodiments of the present invention relate to the field of communications technologies, and in particular, to an uplink data transmission method and device.
- LAA Licensed-Assisted Access
- LBT Listen-Before-Talk
- the starting and ending positions of the LAA uplink and downlink are currently studied.
- the evolved LAA (eLAA) of REL.14 the following agreement is reached regarding the uplink starting position: the base station scheduling user equipment (User Equipment, UE) is in (0, 25 us, 25 us + TA, 1). Select a location to send upstream data.
- eLAA evolved LAA
- each UE since each UE has only one location for transmitting uplink data in one subframe (such as one of the four locations mentioned above), if the LBT fails, the UE needs to wait for the next scheduling of the base station, even if the The channel behind the subframe is already idle, and the UE cannot directly access the channel to transmit data, so the channel utilization is low.
- the present application provides an uplink data transmission method and device, which can increase the opportunity for a UE to access a channel, thereby improving channel utilization; and can reduce standard changes.
- a first aspect of the present application provides an uplink data transmission method, including: receiving, by a UE, start location information of uplink data transmission, where the start location information includes first start location information and second start location information;
- the first starting location information includes an identifier of at least two symbols in a subframe; wherein, the identifier of one symbol corresponds to a starting location; the second starting location information is location offset information; and the UE according to the first starting location information
- the UE accesses the channel through the LBT access mechanism and transmits the uplink data at the determined actual starting position.
- the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving channel utilization.
- the foregoing first location information may be used by the UE according to a Radio Resource Control (RRC) message or a media access control unit (Media Access) sent by the base station.
- RRC Radio Resource Control
- Media Access Media Access
- Control Control Element, MAC CE The message is determined; the second starting location information may be determined by the UE according to downlink control information (Downlink Control Information, DCI) sent by the base station.
- DCI Downlink Control Information
- the foregoing first starting location information may include at least two single carrier frequency division multiple access in one uplink subframe (Single - Carrier Frequency-Division Multiple Access, SC-FDMA) The identity of the symbol or the identification of the Orthogonal Frequency Division Multiplexing (Cy-Pres. OFDM) symbol of at least two cyclic prefixes.
- SC-FDMA Single - Carrier Frequency-Division Multiple Access
- the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- symbols 0, 4, 7, and 11 represent the identifier of the symbol
- one subframe contains 14 symbols
- the identifier is represented by 0-13, with symbols 0, 4, 7, and 11 as an example
- symbol 0 represents a subframe.
- the starting position corresponding to the first symbol in the symbol the symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, the symbol 7 represents the starting position corresponding to the eighth symbol, and the symbol 11 represents the first position in a subframe.
- the method of the present application may further include: receiving, by the UE, first indication information, and determining, by the UE, whether the UE has the first indication information according to the first indication information. At least two upstream transmission locations.
- the first indication information is sent by the base station by using an RRC message or a MAC CE message.
- the UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
- the method of the present application may further include: receiving, by the UE, second indication information, where the second indication information is used to indicate that the UE sends Uplink Pilot Time Slot (UpPTS) configuration of the last subframe of the uplink data; the UpPTS configuration is determined by the base station according to the first start location information; the UE indicates in the last subframe of the uplink data according to the second indication information
- the UpPTS configuration sends upstream data.
- the existing UpPTS configuration is used to design different end positions of the uplink subframes, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance. .
- the second aspect of the present application provides an uplink data transmission method, including: sending, by a base station, start location information of uplink data transmission to a UE, where the start location information includes first start location information and second start location information
- the first starting location information includes an identifier of at least two symbols in a subframe; wherein, the identifier of one symbol corresponds to a starting location; and the second starting location information is location offset information.
- the base station may send the start location information, so that the UE accesses the channel through the LBT access mechanism, and transmits the uplink data at the determined actual starting position.
- the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving the signal.
- the utilization rate of the road Since the UE accesses the channel through the LBT access mechanism, the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving the signal.
- the utilization rate of the road Since the UE accesses the channel through the LBT access mechanism, the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving the signal.
- the foregoing method for the “base station sending the start location information to the UE” may include: the base station sending the first start location information to the UE by using an RRC message or a MAC CE message.
- the base station transmits the second starting location information to the UE through the DCI.
- the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
- the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- symbols 0, 4, 7, and 11 represent the identifier of the symbol
- one subframe contains 14 symbols
- the identifier is represented by 0-13, with symbols 0, 4, 7, and 11 as an example
- symbol 0 represents a subframe.
- the starting position corresponding to the first symbol in the symbol the symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, the symbol 7 represents the starting position corresponding to the eighth symbol, and the symbol 11 represents the first position in a subframe.
- the method of the present application may further include: sending, by the eNB, the first indication information to the UE by using an RRC message or a MAC CE message, where The first indication information is used to indicate to the UE whether the UE has at least two uplink sending locations.
- the UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
- the method of the present application may further include: the base station sends the second indication information to the UE.
- the second indication information is used to instruct the UE to send an UpPTS configuration of the last subframe of the uplink data, where the UpPTS configuration is determined by the base station according to the first starting location information.
- the existing UpPTS configuration is used to design different end positions of the uplink subframes, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance. .
- a third aspect of the present application provides a UE, where the UE may include: a receiving module, a determining module, and a sending module.
- the receiving module may be configured to receive start location information of uplink data transmission, where the start location information includes first start location information and second start location information, where the first start location information includes at least two of a subframe.
- the identifier of the symbol wherein the identifier of one symbol corresponds to a starting position
- the second starting position information is position offset information.
- the determining module is configured to determine an actual starting position of the uplink data transmission according to the first starting location information and the second starting location information.
- the sending module can be configured to send uplink data at an actual starting position after accessing the channel through the LBT access mechanism.
- the foregoing first starting position The information is determined by the UE according to the RRC message or the MAC CE message sent by the base station; the second starting location information is determined by the UE according to the DCI sent by the base station.
- the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
- the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- the receiving module is further configured to receive the first indication information, where the first indication information is used by the base station to pass the RRC message or the MAC CE message. send. And a determining module, configured to determine, according to the first indication information, whether the UE has at least two uplink sending locations.
- the receiving module is further configured to receive second indication information, where the second indication information is used to indicate that the UE sends the last data of the uplink data.
- An UpPTS configuration of one subframe the UpPTS configuration is determined by the base station according to the first starting location information.
- the sending module is further configured to send the uplink data according to the UpPTS configuration indicated by the second indication information in the last subframe of the uplink data.
- a fourth aspect of the present application provides a base station, where the base station can include: a sending module.
- the sending module may be configured to send, to the UE, start location information of uplink data transmission, where the start location information includes first start location information and second start location information, where the first start location information includes one subframe.
- the foregoing sending module may be specifically configured to: send, by using an RRC message or a MAC CE message, first starting location information to the UE; Starting position information.
- the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
- the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- the sending module may be further configured to send the first indication information to the UE by using an RRC message or a MAC CE message, where the An indication information is used to indicate to the UE whether the UE has at least two Upstream send location.
- the foregoing sending module may be further configured to send, to the UE, second indication information, where the second indication information is used to send the UE to send
- the UpPTS configuration of the last subframe of the uplink data is determined by the base station according to the first start location information.
- a fifth aspect of the present application provides a UE, where the UE may include: a processor, a memory, and a communication interface.
- the memory is used to store computer execution instructions, and the processor, the communication interface and the memory are connected by a bus.
- the processor executes a computer-executed instruction of the memory storage, so that the UE performs the first aspect and the first aspect.
- An uplink data transmission method as described in an alternative manner.
- a sixth aspect of the present application provides a computer storage medium having stored therein one or more program codes, when the processor of the UE in the fifth aspect executes the program code, the UE performs the first aspect And the uplink data transmission method described in various alternative manners of the first aspect.
- a base station may include: a processor, a memory, and a communication interface.
- the memory is used to store computer execution instructions, and the processor, the communication interface and the memory are connected by a bus.
- the processor executes the memory storage computer to execute instructions, so that the base station performs the second aspect and the second aspect.
- An uplink data transmission method as described in an alternative manner.
- a computer storage medium where one or more program codes are stored, and when a processor of a base station in the seventh aspect executes the program code, the UE performs the second aspect. And the uplink data transmission method described in various alternative manners of the second aspect.
- FIG. 1 is a schematic structural diagram of a system according to an embodiment of the present disclosure
- FIG. 2 is a flowchart 1 of an uplink data transmission method according to an embodiment of the present invention.
- FIG. 3 is a schematic diagram of an example of determining an actual starting position according to an embodiment of the present disclosure
- FIG. 4 is a flowchart 2 of an uplink data transmission method according to an embodiment of the present invention.
- FIG. 5 is a flowchart 3 of an uplink data transmission method according to an embodiment of the present disclosure.
- FIG. 6 is a schematic diagram of an example of an end position according to an embodiment of the present invention.
- FIG. 7 is a schematic structural diagram 1 of a UE according to an embodiment of the present disclosure.
- FIG. 8 is a schematic structural diagram 2 of a UE according to an embodiment of the present disclosure.
- FIG. 9 is a schematic structural diagram 1 of a base station according to an embodiment of the present disclosure.
- FIG. 10 is a schematic structural diagram 2 of a base station according to an embodiment of the present invention.
- the uplink data transmission method and device provided by the embodiments of the present invention can be applied to the process of uplink data transmission, and specifically, can be applied to the process of uplink data transmission in the LAA system.
- FIG. 1 is a schematic diagram of a system architecture provided by an embodiment of the present invention.
- the system architecture may include UE 01 and base station 02.
- the UE 01 and the base station 02 are communicatively connected.
- UE 01 is a device that provides voice and/or data connectivity to users, a handheld device with wired/wireless connection capabilities, or other processing devices connected to a wireless modem.
- the UE 01 can communicate with one or more core networks via a Radio Access Network (RAN).
- RAN Radio Access Network
- the UE 01 may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, or may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges with the RAN.
- the UE 01 may also be referred to as a User Agent or a terminal device.
- Base station 02 is a device deployed in a radio access network to provide wireless communication functionality to UE 01.
- Base station 02 can include various forms of macro base stations, micro base stations, relay stations, access points, and the like.
- the name of the device with the base station 02 function may have Different, for example, in an LTE system, an evolved base station (evolved NodeB, eNB or eNodeB) is called a base station (Node B) in the 3rd generation Telecommunication (3G) system. Wait. As the communication technology evolves, the name "base station” may change.
- the uplink data transmission method and device provided by the embodiment of the present invention may be implemented based on the LAA system, that is, after the UE accesses the channel through the LBT access mechanism, the UE may transmit data in an uplink sending position in the uplink subframe.
- the uplink data transmission method may include S201-S204:
- the base station sends, to the UE, start location information of uplink data transmission.
- the starting location information includes first starting location information and second starting location information.
- the first starting location information includes an identifier of at least two symbols in one subframe; wherein the identifier of one symbol corresponds to a starting location.
- the second home position information is position offset information.
- the base station may send the first start location information in the start location information to the UE in the form of an RRC message or a MAC CE message; the base station may use the DCI form to start the location information.
- the second starting location information is sent to the UE.
- the first starting location information may include an identifier of at least two SC-FDMAs or an identifier of at least two CP-OFDM symbols in one uplink subframe.
- one subframe contains 14 symbols whose identification is represented by 0-1-3, and symbols 0, 4, 7, and 11 represent the identification of the symbol. Taking symbols 0, 4, 7, and 11 as an example, symbol 0 represents the starting position corresponding to the first symbol in one subframe, symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, and symbol 7 represents the starting position corresponding to the first symbol in one subframe. The starting position corresponding to the eighth symbol, and the symbol 11 represents the starting position corresponding to the twelfth symbol in one subframe.
- the first start location information may include symbol 0 and symbol 7 in one uplink subframe; or, the first start location information may include symbol 0, symbol 4, symbol 7, and symbol 11 in one uplink subframe.
- the starting location information sent by the base station to the UE includes symbols 0 and 7 with complete reference signal positions, or symbols 0, 4, 7 and 11.
- the second starting position information may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- a position offset is determined in four position offsets (ie, 0, 25 us, 25 us + TA, and 1).
- the start location information in the embodiment of the present invention is used to indicate at least two specific start positions in an uplink subframe, where the at least two specific start positions include identifiers of symbols in the first start location information.
- two specific starting positions in an uplink subframe may be position 1 and position 2.
- the position 1 includes a sum of a first starting position and a position offset 0, and the position 2 includes a second starting position and a positional offset.
- the sum of the displacements is 25us.
- the UE receives start location information of uplink data transmission.
- the base station may send the start location information to the UE by using an RRC message (or a MAC CE message) and a DCI.
- the UE determines an actual starting position of the uplink data transmission according to the first starting location information and the second starting location information.
- the actual starting position is a location where the UE sends uplink data in an uplink subframe.
- the UE determines the identifier of the any symbol.
- the sum of the corresponding starting position and the position offset corresponding to the starting position is the actual starting position.
- the first start location information includes the symbol 0 (the symbol 0 corresponds to the first start position) and the symbol 7 (the symbol 7 corresponds to the second start position)
- the UE accesses through the LBT access mechanism before the first start position
- the second starting position information received by the UE is 0, 25 us, 25 us + TA and the position offset 0 in 1, and the UE determines the position 1 (ie, the first starting position and the position offset amount 0).
- the symbol 0 is the actual starting position; if the UE does not preempt the channel at the first starting position, the UE accesses the channel through the LBT access mechanism before the second starting position, assuming that the UE receives the second start
- the position information is a position offset of 25 us in 0, 25 us, 25 us + TA, and 1, and the UE determines that position 2 (ie, the sum of the second start position and the position offset 25us) 7 + 25 us is the actual start position.
- the UE After accessing the channel by using the LBT access mechanism, the UE sends uplink data to the base station at an actual starting position.
- the UE may access the channel through the LBT access mechanism in the start position corresponding to the identifier of any one of the identifiers of the at least two symbols included in the first start location information.
- the channel is accessed based on the LBT mechanism at the second starting location.
- the first starting position and the second starting position are respectively starting positions corresponding to the identifiers of the at least two symbols included in the first starting position information, and the position of the first starting position in the subframe is lower than the second starting position.
- the position in the sub-frame is on the front.
- the first starting position is the starting position corresponding to the symbol 0, and the second starting position is the starting position corresponding to the symbol 7.
- the UE first accesses the channel based on the LBT mechanism at the first starting position. If the UE successfully accesses the first starting location, it determines that the location 1 is the actual starting location, and transmits the uplink data at the location 1; if the UE is in the first starting location If the access fails, the access channel is continued based on the LBT mechanism at the second starting position. If the UE successfully accesses the second starting location, the location 2 is determined to be the actual starting location, and the uplink data is transmitted at the location 2.
- the UE has only one location for transmitting uplink data in one subframe, and when the UE fails to access the channel through the LBT, the UE needs to wait for the next scheduling of the base station, even if the subframe The latter channel is already idle, and the UE cannot directly access the channel to transmit data, so the channel utilization is low.
- the UE since the UE can access the channel in at least two starting locations corresponding to the identifiers of the at least two symbols, the opportunity for the UE to access the channel is increased, thereby improving the utilization of the channel.
- the embodiment of the invention provides an uplink data transmission method, in which the UE accesses the channel through the LBT access mechanism, and sends the uplink data at the determined actual starting position.
- the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving channel utilization.
- the base station may send the uplink data by using the method in the prior art, or transmit the uplink data by using the uplink data transmission method provided by the embodiment of the present invention.
- the method in the embodiment of the present invention may further include S401-S403:
- the base station sends first indication information to the UE.
- the first indication information may be used to indicate that the UE determines whether the UE has at least two uplink sending positions, that is, the first indication information may be used to indicate that the UE transmits uplink data by using a method in the prior art, that is, only one uplink data is sent. position. For example, only one uplink data transmission location symbol 0; or one symbol from symbol 0, 25us, 25us + TA, symbol 1 is transmitted.
- the uplink data may be sent in at least two locations according to the embodiment of the present invention. For example, when the symbol 0 and the symbol 7 are used as the starting position of the uplink data, the LBT access channel is first performed at the symbol 0.
- the uplink data is transmitted at symbol 0; if the LBT fails, channel detection is performed at symbol 7, and if the LBT is successful, the uplink data is transmitted at symbol 7. At this time, the UE has two uplink data transmission locations.
- the base station may send the first indication information to the UE when sending the first start location information to the UE by using an RRC message or a MAC CE message; the base station may also pass the RRC message or the MAC CE before sending the first start location information to the UE.
- the message sends the first indication information to the UE.
- the base station may further send the first indication information to the UE by using an RRC message or a MAC CE message after sending the first start location information to the UE.
- the UE receives the first indication information.
- the UE may receive the first indication information by using an RRC message or a MAC CE message.
- the UE determines, according to the first indication information, whether the UE has at least two uplink sending locations.
- the UE determines, according to the first indication information, that the UE does not have multiple uplink sending positions, that is, the UE has only one location (ie, a starting location) for transmitting uplink data in one subframe, the UE is in the If the UE successfully accesses through the LBT, the data is transmitted at the initial location. If the UE fails to access through the LBT, the UE waits for the next scheduling of the base station.
- the UE determines, according to the first indication information, that the UE has at least two uplink sending positions, that is, the UE has at least two starting positions in one subframe, the UE is in the at least two starting positions. At any starting position, the channel is accessed through the LBT. If the UE fails to access through the LBT, the UE continues to access the channel through the LBT at the two starting positions.
- the UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
- FIG. 4 illustrates another uplink data transmission method according to an embodiment of the present invention by taking S201 first and then performing S401 as an example.
- the UE may determine, according to the second indication information sent by the base station, an end position of the uplink data transmission, that is, determine an UpPTS configuration used by the UE to transmit data in the last subframe of the uplink data.
- the method in the embodiment of the present invention may further include S501-S503:
- the base station sends second indication information to the UE.
- the second indication information is used to instruct the UE to send an UpPTS configuration of the last subframe of the uplink data, where the UpPTS configuration is determined by the base station according to the first starting location information.
- the base station may send the second indication information to the UE by using the DCI.
- the base station may add corresponding bit information in the DCI, and transmit the bit information to the UE, where the bit information is used to indicate that the UE sends the UpPTS configuration of the last subframe of the uplink data.
- the UpPTS structure was studied and new UpPTSs with different symbol lengths were defined.
- the number of symbols that the UpPTS can use to transmit data is 2, 3, 4, and 5;
- the number of symbols that the UpPTS can use to transmit data is 1, 2, 3, 4.
- the description of the UpPTS and the Downlink PTS (DwPTS) in the standard 36.211 is as shown in Table 2:
- the first starting location information in the embodiment of the present invention may include symbol 0 and symbol 7 in one uplink subframe, or symbol 0, symbol 4, symbol 7 and symbol 11 in one uplink subframe, then X
- the value of the UpPTS configuration determined by the base station according to the first starting location information may be six, and the number of symbols used by the UpPTS for transmitting data is 1, 2, 3, 4, 5, and 6.
- the UE receives the second indication information.
- the UE receives the second indication information that the base station sends through the DCI.
- the UE sends uplink data to the base station according to the UpPTS configuration indicated by the second indication information in the last subframe of the uplink data.
- the UE preempts the channel at different actual starting positions, which causes the end position of the uplink data to be different. Therefore, the UE may send data according to different UpPTS configurations at different end positions according to the second indication information sent by the base station.
- the entire uplink data packet includes the length of four subframes.
- the UE preempts the channel at the start position corresponding to the symbol 7, the UE is assumed to send uplink data.
- the actual starting position is 7+25us (ie, position 2)
- the last subframe of the uplink data includes 7 symbols (that is, half of the subframe), and the UE obtains the current indication according to the second indication information sent by the base station.
- the UpPTS configuration of the last subframe for example, when the base station indicates an UpPTS configuration with 6 symbols, the UE transmits the uplink data of the last subframe according to the 6-symbol UpPTS configuration.
- the existing UpPTS configuration is adopted, and different ending positions of the uplink subframes are designed, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance.
- FIG. 5 illustrates another uplink data transmission method according to an embodiment of the present invention by taking S204 first and then performing S501 as an example.
- the solution provided by the embodiment of the present invention is mainly introduced from the perspective of the UE and the base station.
- the UE and the base station include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions.
- the present invention can be implemented in hardware or a combination of hardware and computer software in combination with the UE and base station and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
- the embodiment of the present invention may perform the division of the function module or the function unit on the UE and the base station according to the foregoing method example.
- each function module or function unit may be divided according to each function, or two or more functions may be integrated into one.
- the above integrated modules can be implemented in the form of hardware or in the form of software functional modules or functional units.
- the division of a module or a unit in the embodiment of the present invention is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
- FIG. 7 shows a possible structural diagram of a UE involved in the above embodiment.
- the UE 700 may include: a receiving module 701, a determining module 702, and a sending module 703.
- the receiving module 701 is configured to support S202, S402, and S502 in the above embodiments, and/or other processes for the techniques described herein.
- the determination module 702 is for supporting S203 and S403 in the above embodiments, and/or other processes for the techniques described herein.
- the transmitting module 703 is for supporting S204 and S503 in the above embodiments, and/or other processes for the techniques described herein.
- the UE 700 provided by the embodiment of the present invention includes, but is not limited to, the foregoing module.
- the UE 700 may further include a storage module.
- the storage module can be used to store the starting location information in the embodiment of the present invention.
- the above determining module 702 can be implemented in a processing module, which can be a processor or a controller, such as a CPU, a general-purpose processor, or a digital signal processor (English: Digital Signal Processor) , referred to as: DSP), ASIC (English: Application-Specific Integrated Circuit, referred to as: ASIC), Field Programmable Gate Array (English: Field Programmable Gate Array, referred to as: FPGA) or other programmable logic devices, transistor logic devices , hardware components, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
- a processing module can be a processor or a controller, such as a CPU, a general-purpose processor, or a digital signal processor (English: Digital Signal Processor) , referred to as: DSP), ASIC (English: Application-Specific Integrated Circuit, referred to as: ASIC), Field Programmable Gate Array (English: Field Programmable Gate Array, referred to
- the processing unit may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
- the receiving module 701 and the transmitting module 703 can be implemented by being integrated in one communication module, which can be a communication interface.
- the storage module can be a memory.
- the processing module is a processor
- the storage module is a memory
- the communication module is a transceiver
- the UE 700 according to the embodiment of the present invention may be the UE 800 shown in FIG. 8.
- UE 800 The processor 801, the memory 802, and the communication interface 803 are included.
- the processor 801, the memory 802, and the communication interface 803 are connected to each other through a bus 804.
- the bus 804 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus.
- PCI Peripheral Component Interconnect
- EISA Extended Industry Standard Architecture
- the bus 804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.
- the UE 800 may include one or more processors 801, ie, the UE 800 may include a multi-core processor.
- the embodiment of the present invention further provides a computer storage medium having one or more program codes stored therein.
- the processor 801 of the UE 800 executes the program code
- the UE 800 executes the FIG. 2, FIG. 4 and the figure.
- FIG. 9 is a schematic structural diagram of a base station involved in the foregoing embodiment.
- the base station 900 includes: a sending module 901.
- the transmitting module 901 is configured to support S201, S401, and S501 in the above embodiments, and/or other processes for the techniques described herein.
- the base station 900 provided by the embodiment of the present invention includes, but is not limited to, the foregoing modules.
- the base station 900 may further include a receiving module and a storage module.
- the receiving module can be configured to receive uplink data sent by the UE.
- the storage module can be used to store the starting location information in the embodiment of the present invention.
- the various modules of the base station 900 described above may be implemented in a processing module, which may be a processor or a controller, such as a CPU, a general purpose processor, a DSP, an ASIC, an FPGA or the like. Programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure.
- the processing unit may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.
- the sending module 901 and the receiving module can be implemented by being integrated in one communication module, which can be a communication interface.
- the storage module can be a memory.
- the base station 900 may be the base station 1000 shown in FIG. As shown in FIG. 10, the base station 1000 includes a processor 1001, a memory 1002, and a communication interface 1003. The processor 1001, the memory 1002, and the communication interface 1003 are connected to each other through a bus 1004.
- the bus 1004 may be a PCI bus or an EISA bus.
- the bus 1004 described above can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.
- Base station 1000 can include one or more processors 1001, ie, base station 1000 can include a multi-core processor.
- the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores one or more program codes, and when the processor 1001 of the base station 1000 executes the program code, the base station 1000 executes FIG. 2, FIG. 4 and the figure. Related method steps in any of the Figures 5.
- the disclosed system, apparatus, and method may be implemented in other manners.
- the device embodiments described above are merely illustrative.
- the division of the modules or units is only a logical function division.
- there may be another division manner for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed.
- the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
- each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
- the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
- the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
- a computer readable storage medium A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to perform all or part of the steps of the methods described in various embodiments of the present application.
- the foregoing storage medium includes: a flash memory, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk, and the like, which can store program codes.
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Abstract
Disclosed are an uplink data transmission method and device. Same relate to the technical field of communications, and can increase the opportunity for a UE to access a channel, thereby improving the utilization rate of the channel. The specific solution is: a UE receiving start position information about uplink data transmission, wherein the start position information comprises first start position information and second start position information, the first start position information comprises identifiers of at least two symbols in one subframe, the identifier of one symbol corresponds to one start position, and the second start position information is position offset information; the UE determining an actual start position of uplink data transmission according to the first start position information and the second start position information; and after accessing a channel by means of an LBT access mechanism, the UE transmitting uplink data at the actual start position. The embodiment of the present invention is applied to a process of uplink data transmission in an LAA system.
Description
本发明实施例涉及通信技术领域,尤其涉及一种上行数据传输方法及设备。The embodiments of the present invention relate to the field of communications technologies, and in particular, to an uplink data transmission method and device.
授权辅助接入(Licensed-Assisted Access,LAA)是一种将非授权频段LTE与授权频段LTE相结合,以提高数据传输速率的技术。目前,为了保证LAA技术可以和其他在非授权频段工作的技术共存,采用先听后发(Listen-Before-Talk,LBT)接入机制接入信道。Licensed-Assisted Access (LAA) is a technology that combines the unlicensed band LTE with the licensed band LTE to increase the data transmission rate. At present, in order to ensure that the LAA technology can coexist with other technologies working in the unlicensed frequency band, a Listen-Before-Talk (LBT) access mechanism is used to access the channel.
在LAA技术的应用中,目前针对LAA上下行的开始结束位置进行了研究。在REL.14的演进型LAA(evolved LAA,eLAA)中,有关上行起始位置达成了如下协议:即基站调度用户设备(User Equipment,UE)在(0,25us,25us+TA,1)中的选择一个位置发送上行数据。In the application of LAA technology, the starting and ending positions of the LAA uplink and downlink are currently studied. In the evolved LAA (eLAA) of REL.14, the following agreement is reached regarding the uplink starting position: the base station scheduling user equipment (User Equipment, UE) is in (0, 25 us, 25 us + TA, 1). Select a location to send upstream data.
但是,由于每个UE在一个子帧上只有一个发送上行数据的位置(如上述提到的4个位置中选择1个),因此如果一旦LBT失败,UE需要等待基站的下一次调度,即便该子帧后面的信道已经空闲,UE也不能直接接入信道发送数据,因此信道的利用率低。However, since each UE has only one location for transmitting uplink data in one subframe (such as one of the four locations mentioned above), if the LBT fails, the UE needs to wait for the next scheduling of the base station, even if the The channel behind the subframe is already idle, and the UE cannot directly access the channel to transmit data, so the channel utilization is low.
发明内容Summary of the invention
本申请提供一种上行数据传输方法及设备,可以增加UE接入信道的机会,从而提高信道的利用率;并且可以降低标准改动。The present application provides an uplink data transmission method and device, which can increase the opportunity for a UE to access a channel, thereby improving channel utilization; and can reduce standard changes.
为达到上述目的,本申请采用如下技术方案:To achieve the above objectives, the present application adopts the following technical solutions:
本申请的第一方面,提供一种上行数据传输方法,包括:UE接收上行数据发送的起始位置信息;其中,该起始位置信息包括第一起始位置信息和第二起始位置信息;该第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置;该第二起始位置信息为位置偏移量信息;UE根据第一起始位置信息和第二起始位置信息确定上行数据发送的实际起始位置;UE在通过LBT接入机制接入信道后,在实际起始位置上发送上行数据。在本申请中,UE通过LBT接入机制接入信道,并在确定的实际起始位置上发送上行数据。由于UE通过LBT接入机制接入信道时,可以在至少两个符号的标识对应的至少两个起始位置接入信道,因此增加了UE接入信道的机会,从而提高了信道的利用率。A first aspect of the present application provides an uplink data transmission method, including: receiving, by a UE, start location information of uplink data transmission, where the start location information includes first start location information and second start location information; The first starting location information includes an identifier of at least two symbols in a subframe; wherein, the identifier of one symbol corresponds to a starting location; the second starting location information is location offset information; and the UE according to the first starting location information And determining, by the second start location information, an actual starting position of the uplink data transmission; after accessing the channel by using the LBT access mechanism, the UE sends the uplink data at the actual starting position. In the present application, the UE accesses the channel through the LBT access mechanism and transmits the uplink data at the determined actual starting position. When the UE accesses the channel through the LBT access mechanism, the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving channel utilization.
结合第一方面,在本申请的一种可能的实现方式中,上述第一起始位置信息可以由UE根据基站发送的无线资源控制(Radio Resource Control,RRC)消息或媒体接入控制单元(Media Access Control Control Element,MAC CE)
消息确定;上述第二起始位置信息可以由UE根据基站发送的下行控制信息(Downlink Control Information,DCI)确定。With reference to the first aspect, in a possible implementation manner of the present application, the foregoing first location information may be used by the UE according to a Radio Resource Control (RRC) message or a media access control unit (Media Access) sent by the base station. Control Control Element, MAC CE)
The message is determined; the second starting location information may be determined by the UE according to downlink control information (Downlink Control Information, DCI) sent by the base station.
结合第一方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括一个上行子帧中至少两个单载波频分多址接入(Single-Carrier Frequency-Division Multiple Access,SC-FDMA)符号的标识或至少两个循环前缀的正交频分复用(Cycle Prefix-OFDM,CP-OFDM)符号的标识。With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the foregoing first starting location information may include at least two single carrier frequency division multiple access in one uplink subframe (Single - Carrier Frequency-Division Multiple Access, SC-FDMA) The identity of the symbol or the identification of the Orthogonal Frequency Division Multiplexing (Cy-Pres. OFDM) symbol of at least two cyclic prefixes.
结合第一方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括符号0和符号7;或者,上述第一起始位置信息可以包括符号0、符号4、符号7和符号11;上述第二起始位置信息可以包括0、25us、25us+TA和1四个位置偏移量中的任一个。其中,符号0、4、7和11代表符号的标识,一个子帧包含14个符号,其标识由0-13来表示,以符号0、4、7和11为例,符号0代表一个子帧中的第一个符号对应的起始位置,符号4代表一个子帧中第五个符号对应的起始位置,符号7代表第八个符号对应的起始位置,符号11代表一个子帧中第12个符号对应的起始位置。With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one. Wherein, symbols 0, 4, 7, and 11 represent the identifier of the symbol, one subframe contains 14 symbols, and the identifier is represented by 0-13, with symbols 0, 4, 7, and 11 as an example, and symbol 0 represents a subframe. The starting position corresponding to the first symbol in the symbol, the symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, the symbol 7 represents the starting position corresponding to the eighth symbol, and the symbol 11 represents the first position in a subframe. The starting position corresponding to 12 symbols.
结合第一方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,本申请的方法还可以包括:UE接收第一指示信息;UE根据第一指示信息,确定UE是否具有至少两个上行发送位置。其中,第一指示信息由基站通过RRC消息或MAC CE消息发送。由于UE可以根据基站发送的第一指示信息,确定该UE是否具有至少两个上行发送位置;因此,本发明实施例提供的上行数据传输方法可以减少UE盲检测的机会,降低功耗,从而保证UE传输数据的灵活性。With reference to the first aspect and the foregoing possible implementation manners, in another possible implementation manner of the present application, the method of the present application may further include: receiving, by the UE, first indication information, and determining, by the UE, whether the UE has the first indication information according to the first indication information. At least two upstream transmission locations. The first indication information is sent by the base station by using an RRC message or a MAC CE message. The UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
结合第一方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,本申请的方法还可以包括:UE接收第二指示信息;其中,第二指示信息用于指示UE发送上行数据的最后一个子帧的上行导频时隙(Uplink Pilot Time Slot,UpPTS)配置;UpPTS配置由基站根据第一起始位置信息确定;UE在上行数据的最后一个子帧根据第二指示信息指示的UpPTS配置发送上行数据。其中,由于本发明实施例中采用已有UpPTS配置,设计上行子帧的不同结束位置,使得UE可以采用已有的UpPTS结构进行数据传输,从而降低了标准改动,保证整体的信道的解调性能。With reference to the first aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the method of the present application may further include: receiving, by the UE, second indication information, where the second indication information is used to indicate that the UE sends Uplink Pilot Time Slot (UpPTS) configuration of the last subframe of the uplink data; the UpPTS configuration is determined by the base station according to the first start location information; the UE indicates in the last subframe of the uplink data according to the second indication information The UpPTS configuration sends upstream data. In the embodiment of the present invention, the existing UpPTS configuration is used to design different end positions of the uplink subframes, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance. .
本申请的第二方面,提供一种上行数据传输方法,包括:基站向UE发送上行数据发送的起始位置信息;其中,该起始位置信息包括第一起始位置信息和第二起始位置信息;该第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置;该第二起始位置信息为位置偏移量信息。在本申请中,基站可以向发送起始位置信息,使得UE通过LBT接入机制接入信道,并在确定的实际起始位置上发送上行数据。由于UE通过LBT接入机制接入信道时,可以在至少两个符号的标识对应的至少两个起始位置接入信道,因此增加了UE接入信道的机会,从而提高了信
道的利用率。The second aspect of the present application provides an uplink data transmission method, including: sending, by a base station, start location information of uplink data transmission to a UE, where the start location information includes first start location information and second start location information The first starting location information includes an identifier of at least two symbols in a subframe; wherein, the identifier of one symbol corresponds to a starting location; and the second starting location information is location offset information. In the present application, the base station may send the start location information, so that the UE accesses the channel through the LBT access mechanism, and transmits the uplink data at the determined actual starting position. Since the UE accesses the channel through the LBT access mechanism, the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving the signal.
The utilization rate of the road.
结合第二方面,在本申请的一种可能的实现方式中,上述“基站向UE发送起始位置信息”的方法可以包括:基站通过RRC消息或MAC CE消息,向UE发送第一起始位置信息;基站通过DCI向UE发送第二起始位置信息。With reference to the second aspect, in a possible implementation manner of the present application, the foregoing method for the “base station sending the start location information to the UE” may include: the base station sending the first start location information to the UE by using an RRC message or a MAC CE message. The base station transmits the second starting location information to the UE through the DCI.
结合第二方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括一个上行子帧中至少两个SC-FDMA的标识或至少两个CP-OFDM符号的标识。With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
结合第二方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括符号0和符号7;或者,上述第一起始位置信息可以包括符号0、符号4、符号7和符号11;上述第二起始位置信息可以包括0、25us、25us+TA和1四个位置偏移量中的任一个。其中,符号0、4、7和11代表符号的标识,一个子帧包含14个符号,其标识由0-13来表示,以符号0、4、7和11为例,符号0代表一个子帧中的第一个符号对应的起始位置,符号4代表一个子帧中第五个符号对应的起始位置,符号7代表第八个符号对应的起始位置,符号11代表一个子帧中第12个符号对应的起始位置。With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one. Wherein, symbols 0, 4, 7, and 11 represent the identifier of the symbol, one subframe contains 14 symbols, and the identifier is represented by 0-13, with symbols 0, 4, 7, and 11 as an example, and symbol 0 represents a subframe. The starting position corresponding to the first symbol in the symbol, the symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, the symbol 7 represents the starting position corresponding to the eighth symbol, and the symbol 11 represents the first position in a subframe. The starting position corresponding to 12 symbols.
结合第二方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,本申请的方法还可以包括:基站通过RRC消息或MAC CE消息,向UE发送第一指示信息,该第一指示信息用于指示UE确定该UE是否具有至少两个上行发送位置。由于UE可以根据基站发送的第一指示信息,确定该UE是否具有至少两个上行发送位置;因此,本发明实施例提供的上行数据传输方法可以减少UE盲检测的机会,降低功耗,从而保证UE传输数据的灵活性。With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the method of the present application may further include: sending, by the eNB, the first indication information to the UE by using an RRC message or a MAC CE message, where The first indication information is used to indicate to the UE whether the UE has at least two uplink sending locations. The UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
结合第二方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,本申请的方法还可以包括:基站向UE发送第二指示信息。其中,该第二指示信息用于指示UE发送上行数据的最后一个子帧的UpPTS配置,该UpPTS配置由基站根据第一起始位置信息确定。其中,由于本发明实施例中采用已有UpPTS配置,设计上行子帧的不同结束位置,使得UE可以采用已有的UpPTS结构进行数据传输,从而降低了标准改动,保证整体的信道的解调性能。With reference to the second aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the method of the present application may further include: the base station sends the second indication information to the UE. The second indication information is used to instruct the UE to send an UpPTS configuration of the last subframe of the uplink data, where the UpPTS configuration is determined by the base station according to the first starting location information. In the embodiment of the present invention, the existing UpPTS configuration is used to design different end positions of the uplink subframes, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance. .
本申请的第三方面,提供一种UE,该UE可以包括:接收模块、确定模块和发送模块。其中,接收模块,可以用于接收上行数据发送的起始位置信息,该起始位置信息包括第一起始位置信息和第二起始位置信息,该第一起始位置信息包括一个子帧中至少两个符号的标识,其中,一个符号的标识对应一个起始位置,该第二起始位置信息为位置偏移量信息。确定模块,可以用于根据第一起始位置信息和第二起始位置信息确定上行数据发送的实际起始位置。发送模块,可以用于在通过LBT接入机制接入信道后,在实际起始位置上发送上行数据。A third aspect of the present application provides a UE, where the UE may include: a receiving module, a determining module, and a sending module. The receiving module may be configured to receive start location information of uplink data transmission, where the start location information includes first start location information and second start location information, where the first start location information includes at least two of a subframe. The identifier of the symbol, wherein the identifier of one symbol corresponds to a starting position, and the second starting position information is position offset information. The determining module is configured to determine an actual starting position of the uplink data transmission according to the first starting location information and the second starting location information. The sending module can be configured to send uplink data at an actual starting position after accessing the channel through the LBT access mechanism.
结合第三方面,在本申请的一种可能的实现方式中,上述第一起始位置
信息由UE根据基站发送的RRC消息或MAC CE消息确定;上述第二起始位置信息由UE根据基站发送的DCI确定。With reference to the third aspect, in a possible implementation manner of the present application, the foregoing first starting position
The information is determined by the UE according to the RRC message or the MAC CE message sent by the base station; the second starting location information is determined by the UE according to the DCI sent by the base station.
结合第三方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括一个上行子帧中至少两个SC-FDMA的标识或至少两个CP-OFDM符号的标识。With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
结合第三方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括符号0和符号7;或者,上述第一起始位置信息可以包括符号0、符号4、符号7和符号11;上述第二起始位置信息可以包括0、25us、25us+TA和1四个位置偏移量中的任一个。With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
结合第三方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,接收模块,还用于接收第一指示信息,该第一指示信息由基站通过RRC消息或MAC CE消息发送。确定模块,还用于根据第一指示信息,确定UE是否具有至少两个上行发送位置。With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the receiving module is further configured to receive the first indication information, where the first indication information is used by the base station to pass the RRC message or the MAC CE message. send. And a determining module, configured to determine, according to the first indication information, whether the UE has at least two uplink sending locations.
结合第三方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,接收模块,还用于接收第二指示信息,该第二指示信息用于指示UE发送上行数据的最后一个子帧的UpPTS配置,该UpPTS配置由基站根据上述第一起始位置信息确定。发送模块,还用于在上行数据的最后一个子帧根据上述第二指示信息指示的UpPTS配置发送上行数据。With reference to the third aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the receiving module is further configured to receive second indication information, where the second indication information is used to indicate that the UE sends the last data of the uplink data. An UpPTS configuration of one subframe, the UpPTS configuration is determined by the base station according to the first starting location information. The sending module is further configured to send the uplink data according to the UpPTS configuration indicated by the second indication information in the last subframe of the uplink data.
需要说明的是,第三方面及其各种可能的实现方式的各个功能单元的详细描述以及有益效果分析可以参考上述第一方面及其各种可能的实现方式中的对应描述及技术效果,此处不再赘述。It should be noted that the detailed description and the beneficial effect analysis of the respective functional units of the third aspect and various possible implementation manners may refer to the corresponding descriptions and technical effects in the foregoing first aspect and various possible implementation manners thereof. I won't go into details here.
本申请的第四方面,提供一种基站,该基站可以包括:发送模块。其中,发送模块,可以用于向UE发送上行数据发送的起始位置信息,该起始位置信息包括第一起始位置信息和第二起始位置信息,该第一起始位置信息包括一个子帧中至少两个符号的标识,其中,一个符号的标识对应一个起始位置,该第二起始位置信息为位置偏移量信息。A fourth aspect of the present application provides a base station, where the base station can include: a sending module. The sending module may be configured to send, to the UE, start location information of uplink data transmission, where the start location information includes first start location information and second start location information, where the first start location information includes one subframe. An identifier of at least two symbols, wherein the identifier of one symbol corresponds to a start position, and the second start position information is position offset information.
结合第四方面,在本申请的一种可能的实现方式中,上述发送模块,具体可以用于:通过RRC消息或MAC CE消息,向UE发送第一起始位置信息;通过DCI向UE发送第二起始位置信息。With reference to the fourth aspect, in a possible implementation manner of the present application, the foregoing sending module may be specifically configured to: send, by using an RRC message or a MAC CE message, first starting location information to the UE; Starting position information.
结合第四方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括一个上行子帧中至少两个SC-FDMA的标识或至少两个CP-OFDM符号的标识。With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the foregoing first location information may include an identifier of at least two SC-FDMAs in an uplink subframe or at least two CPs. - Identification of the OFDM symbol.
结合第四方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述第一起始位置信息可以包括符号0和符号7;或者,上述第一起始位置信息可以包括符号0、符号4、符号7和符号11;上述第二起始位置信息可以包括0、25us、25us+TA和1四个位置偏移量中的任一个。With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the first starting location information may include the symbol 0 and the symbol 7; or the first starting location information may include the symbol 0. , symbol 4, symbol 7 and symbol 11; the second starting position information described above may include any one of four position offsets of 0, 25 us, 25 us + TA, and one.
结合第四方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述发送模块,还可以用于通过RRC消息或MAC CE消息,向UE发送第一指示信息,该第一指示信息用于指示UE确定该UE是否具有至少两个
上行发送位置。With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the sending module may be further configured to send the first indication information to the UE by using an RRC message or a MAC CE message, where the An indication information is used to indicate to the UE whether the UE has at least two
Upstream send location.
结合第四方面和上述可能的实现方式,在本申请的另一种可能的实现方式中,上述发送模块,还可以用于向UE发送第二指示信息,该第二指示信息用于指示UE发送上行数据的最后一个子帧的UpPTS配置,该UpPTS配置由基站根据第一起始位置信息确定。With reference to the fourth aspect and the foregoing possible implementation manner, in another possible implementation manner of the present application, the foregoing sending module may be further configured to send, to the UE, second indication information, where the second indication information is used to send the UE to send The UpPTS configuration of the last subframe of the uplink data, the UpPTS configuration is determined by the base station according to the first start location information.
需要说明的是,第四方面及其各种可能的实现方式的各个功能单元的详细描述以及有益效果分析可以参考上述第二方面及其各种可能的实现方式中的对应描述及技术效果,此处不再赘述。It should be noted that the detailed description and the beneficial effect analysis of each functional unit of the fourth aspect and various possible implementation manners may refer to the corresponding description and technical effects in the foregoing second aspect and various possible implementation manners thereof. I won't go into details here.
本申请的第五方面,提供一种UE,该UE可以包括:处理器、存储器和通信接口。其中,存储器用于存储计算机执行指令,处理器、通信接口与存储器通过总线连接,当UE运行时,处理器执行存储器存储的计算机执行指令,以使UE执行如第一方面以及第一方面的各种可选方式所述的上行数据传输方法。A fifth aspect of the present application provides a UE, where the UE may include: a processor, a memory, and a communication interface. The memory is used to store computer execution instructions, and the processor, the communication interface and the memory are connected by a bus. When the UE is running, the processor executes a computer-executed instruction of the memory storage, so that the UE performs the first aspect and the first aspect. An uplink data transmission method as described in an alternative manner.
本申请的第六方面,提供一种计算机存储介质,该计算机存储介质中存储有一个或多个程序代码,当第五方面中的UE的处理器执行该程序代码时,UE执行如第一方面以及第一方面的各种可选方式所述的上行数据传输方法。A sixth aspect of the present application provides a computer storage medium having stored therein one or more program codes, when the processor of the UE in the fifth aspect executes the program code, the UE performs the first aspect And the uplink data transmission method described in various alternative manners of the first aspect.
上述第三方面和第五方面中UE的各个模块的详细描述和相应技术效果分析可参见上述第一方面及其各种可能的实现方式中的详细描述,本发明实施例这里不再赘述。For a detailed description of the various modules of the UE in the foregoing third and fifth aspects, and the corresponding technical effects, refer to the detailed description in the foregoing first aspect and various possible implementation manners, and details are not described herein again.
本申请的第七方面,提供一种基站,该基站可以包括:处理器、存储器和通信接口。其中,存储器用于存储计算机执行指令,处理器、通信接口与存储器通过总线连接,当基站运行时,处理器执行存储器存储的计算机执行指令,以使基站执行如第二方面以及第二方面的各种可选方式所述的上行数据传输方法。In a seventh aspect of the present application, a base station is provided, the base station may include: a processor, a memory, and a communication interface. The memory is used to store computer execution instructions, and the processor, the communication interface and the memory are connected by a bus. When the base station is running, the processor executes the memory storage computer to execute instructions, so that the base station performs the second aspect and the second aspect. An uplink data transmission method as described in an alternative manner.
本申请的第八方面,提供一种计算机存储介质,该计算机存储介质中存储有一个或多个程序代码,当第七方面中的基站的处理器执行该程序代码时,UE执行如第二方面以及第二方面的各种可选方式所述的上行数据传输方法。In an eighth aspect of the present application, a computer storage medium is provided, where one or more program codes are stored, and when a processor of a base station in the seventh aspect executes the program code, the UE performs the second aspect. And the uplink data transmission method described in various alternative manners of the second aspect.
上述第四方面和第七方面中基站的各个模块的详细描述和相应技术效果分析可参见上述第二方面及其各种可能的实现方式中的详细描述,本发明实施例这里不再赘述。For a detailed description of the various modules of the base station and the corresponding technical effects in the foregoing fourth and seventh aspects, reference may be made to the detailed description in the foregoing second aspect and various possible implementation manners, and details are not described herein again.
图1为本发明实施例提供的一种***架构示意图;FIG. 1 is a schematic structural diagram of a system according to an embodiment of the present disclosure;
图2为本发明实施例提供的一种上行数据传输方法流程图一;2 is a flowchart 1 of an uplink data transmission method according to an embodiment of the present invention;
图3为本发明实施例提供的一种确定实际起始位置的实例示意图;FIG. 3 is a schematic diagram of an example of determining an actual starting position according to an embodiment of the present disclosure;
图4为本发明实施例提供的一种上行数据传输方法流程图二;4 is a flowchart 2 of an uplink data transmission method according to an embodiment of the present invention;
图5为本发明实施例提供的一种上行数据传输方法流程图三;FIG. 5 is a flowchart 3 of an uplink data transmission method according to an embodiment of the present disclosure;
图6为本发明实施例提供的一种结束位置的实例示意图;FIG. 6 is a schematic diagram of an example of an end position according to an embodiment of the present invention;
图7为本发明实施例提供的一种UE的结构示意图一;
FIG. 7 is a schematic structural diagram 1 of a UE according to an embodiment of the present disclosure;
图8为本发明实施例提供的一种UE的结构示意图二;FIG. 8 is a schematic structural diagram 2 of a UE according to an embodiment of the present disclosure;
图9为本发明实施例提供的一种基站的结构示意图一;FIG. 9 is a schematic structural diagram 1 of a base station according to an embodiment of the present disclosure;
图10为本发明实施例提供的一种基站的结构示意图二。FIG. 10 is a schematic structural diagram 2 of a base station according to an embodiment of the present invention.
本发明实施例提供的上行数据传输方法及设备可以应用于上行数据传输的过程中,具体的,可以应用于LAA***中的上行数据传输的过程中。The uplink data transmission method and device provided by the embodiments of the present invention can be applied to the process of uplink data transmission, and specifically, can be applied to the process of uplink data transmission in the LAA system.
下面对本发明实施例中的涉及的技术术语的英文缩略语以及对应的完整的英文表述/英文标准用语、中文表述/中文术语进行解释说明,以便于本领域技术人员理解,具体如表1所示:In the following, the English abbreviations of the technical terms involved in the embodiments of the present invention and the corresponding complete English expressions/English standard terms and Chinese expressions/Chinese terms are explained to facilitate understanding by those skilled in the art, as shown in Table 1. :
表1Table 1
请参考图1,其示出了本发明实施例提供的一种***架构示意图。如图1所示,该***架构可以包括UE 01和基站02。其中,UE 01和基站02通信连接。Please refer to FIG. 1 , which is a schematic diagram of a system architecture provided by an embodiment of the present invention. As shown in FIG. 1, the system architecture may include UE 01 and base station 02. The UE 01 and the base station 02 are communicatively connected.
其中,UE 01是一种指向用户提供语音和/或数据连通性的设备,具有有线/无线连接功能的手持式设备,或连接到无线调制解调器的其他处理设备。UE 01可以经过无线接入网(Radio Access Network,RAN)与一个或多个核心网进行通信。UE 01可以是移动终端,如移动电话(或称为“蜂窝”电话)和具有移动终端的计算机,也可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置,它们与RAN交换语言和/或数据,例如,个人通信业务(Personal Communication Service,PCS)电话、无绳电话、会话发起协议(SIP)话机、无线本地环路(Wireless Local Loop,WLL)站、个人数字助理(Personal Digital Assistant,PDA)等设备。UE 01也可以称为用户代理(User Agent)、终端设备。Among them, UE 01 is a device that provides voice and/or data connectivity to users, a handheld device with wired/wireless connection capabilities, or other processing devices connected to a wireless modem. The UE 01 can communicate with one or more core networks via a Radio Access Network (RAN). The UE 01 may be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, or may be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges with the RAN. Language and/or data, for example, Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (Personal Digital) Assistant, PDA) and other devices. The UE 01 may also be referred to as a User Agent or a terminal device.
基站02是一种部署在无线接入网中用以为UE 01提供无线通信功能的装置。基站02可以包括各种形式的宏基站、微基站、中继站、接入点等等。在采用不同的无线接入技术的***中,具备基站02功能的设备的名称可能会有
所不同,例如,在LTE***中,称为演进的基站(evolved NodeB,eNB或eNodeB),在第3代移动通信技术(The 3rd Generation Telecommunication,3G)***中,称为基站(Node B)等等。随着通信技术的演进,“基站”这一名称可能会变化。 Base station 02 is a device deployed in a radio access network to provide wireless communication functionality to UE 01. Base station 02 can include various forms of macro base stations, micro base stations, relay stations, access points, and the like. In systems using different wireless access technologies, the name of the device with the base station 02 function may have
Different, for example, in an LTE system, an evolved base station (evolved NodeB, eNB or eNodeB) is called a base station (Node B) in the 3rd generation Telecommunication (3G) system. Wait. As the communication technology evolves, the name "base station" may change.
本发明实施例提供的上行数据传输方法及设备,可以基于LAA***实现,即UE在通过LBT接入机制接入信道后,可以在上行子帧中的上行发送位置传输数据。The uplink data transmission method and device provided by the embodiment of the present invention may be implemented based on the LAA system, that is, after the UE accesses the channel through the LBT access mechanism, the UE may transmit data in an uplink sending position in the uplink subframe.
下面基于图1所示的***中基站02与UE 01之间的交互以及LAA***,本发明实施例提供一种上行数据传输方法,该方法对图1所示的***中UE 01和基站02交互过程,进行了详细的介绍。具体的,如图2所示,该上行数据传输方法可以包括S201-S204:The following is based on the interaction between the base station 02 and the UE 01 in the system shown in FIG. 1 and the LAA system. The embodiment of the present invention provides an uplink data transmission method, which interacts with the UE 01 and the base station 02 in the system shown in FIG. The process was described in detail. Specifically, as shown in FIG. 2, the uplink data transmission method may include S201-S204:
S201、基站向UE发送上行数据发送的起始位置信息。S201. The base station sends, to the UE, start location information of uplink data transmission.
其中,起始位置信息包括第一起始位置信息和第二起始位置信息。第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置。第二起始位置信息为位置偏移量信息。The starting location information includes first starting location information and second starting location information. The first starting location information includes an identifier of at least two symbols in one subframe; wherein the identifier of one symbol corresponds to a starting location. The second home position information is position offset information.
示例性的,本发明实施例中基站可以通过RRC消息或MAC CE消息的形式,将起始位置信息中的第一起始位置信息发送至UE;基站可以通过DCI的形式,将起始位置信息中的第二起始位置信息发送至UE。Exemplarily, in the embodiment of the present invention, the base station may send the first start location information in the start location information to the UE in the form of an RRC message or a MAC CE message; the base station may use the DCI form to start the location information. The second starting location information is sent to the UE.
示例性的,第一起始位置信息可以包括一个上行子帧中至少两个SC-FDMA的标识或至少两个CP-OFDM符号的标识。Exemplarily, the first starting location information may include an identifier of at least two SC-FDMAs or an identifier of at least two CP-OFDM symbols in one uplink subframe.
例如,一个子帧包含14个符号,其标识由0-13来表示,符号0、4、7和11代表符号的标识。以符号0、4、7和11为例,符号0代表一个子帧中的第一个符号对应的起始位置,符号4代表一个子帧中第五个符号对应的起始位置,符号7代表第八个符号对应的起始位置,符号11代表一个子帧中第12个符号对应的起始位置。For example, one subframe contains 14 symbols whose identification is represented by 0-1-3, and symbols 0, 4, 7, and 11 represent the identification of the symbol. Taking symbols 0, 4, 7, and 11 as an example, symbol 0 represents the starting position corresponding to the first symbol in one subframe, symbol 4 represents the starting position corresponding to the fifth symbol in one subframe, and symbol 7 represents the starting position corresponding to the first symbol in one subframe. The starting position corresponding to the eighth symbol, and the symbol 11 represents the starting position corresponding to the twelfth symbol in one subframe.
第一起始位置信息可以包括一个上行子帧中的符号0和符号7;或者,第一起始位置信息可以包括一个上行子帧中的符号0、符号4、符号7和符号11。The first start location information may include symbol 0 and symbol 7 in one uplink subframe; or, the first start location information may include symbol 0, symbol 4, symbol 7, and symbol 11 in one uplink subframe.
一般而言,为了保证基站的解调性能,基站向UE发送的起始位置信息中包括参考信号位置较完整的符号0和符号7,或者符号0、符号4、符号7和符号11。Generally, in order to ensure the demodulation performance of the base station, the starting location information sent by the base station to the UE includes symbols 0 and 7 with complete reference signal positions, or symbols 0, 4, 7 and 11.
示例性的,第二起始位置信息可以包括0、25us、25us+TA和1四个位置偏移量中的任一个。当UE在第一起始位置信息中包括的至少两个符号的标识中任一符号的标识指示的起始位置、通过LBT接入机制接入信道后,UE根据基站发送的第二起始位置信息,在四个位置偏移量(即0、25us、25us+TA和1)中确定一个位置偏移量。Exemplarily, the second starting position information may include any one of four position offsets of 0, 25 us, 25 us + TA, and one. The second starting location information sent by the UE according to the base station after the UE accesses the channel through the LBT access mechanism after the UE indicates the starting position of the identifier of any one of the identifiers of the at least two symbols included in the first start location information. A position offset is determined in four position offsets (ie, 0, 25 us, 25 us + TA, and 1).
示例性的,本发明实施例中的起始位置信息用于指示一个上行子帧中至少两个具体起始位置,该至少两个具体起始位置包括第一起始位置信息中的符号的标识对应的起始位置和与每个起始位置对应的位置偏移量之和。
For example, the start location information in the embodiment of the present invention is used to indicate at least two specific start positions in an uplink subframe, where the at least two specific start positions include identifiers of symbols in the first start location information. The starting position and the sum of the position offsets corresponding to each starting position.
例如,一个上行子帧中两个具体起始位置可以为位置1和位置2,该位置1包括第一起始位置和位置偏移量0之和,该位置2包括第二起始位置和位置偏移量25us之和。For example, two specific starting positions in an uplink subframe may be position 1 and position 2. The position 1 includes a sum of a first starting position and a position offset 0, and the position 2 includes a second starting position and a positional offset. The sum of the displacements is 25us.
S202、UE接收上行数据发送的起始位置信息。S202. The UE receives start location information of uplink data transmission.
其中,基站可以通过RRC消息(或MAC CE消息)以及DCI,发送该起始位置信息给UE。The base station may send the start location information to the UE by using an RRC message (or a MAC CE message) and a DCI.
S203、UE根据第一起始位置信息和第二起始位置信息确定上行数据发送的实际起始位置。S203. The UE determines an actual starting position of the uplink data transmission according to the first starting location information and the second starting location information.
其中,实际起始位置为UE在上行子帧中发送上行数据的位置。The actual starting position is a location where the UE sends uplink data in an uplink subframe.
具体的,当UE在第一起始位置信息中包括的至少两个符号的标识中任一符号的标识对应的起始位置通过LBT接入机制接入信道时,UE则确定该任一符号的标识对应的起始位置以及与该起始位置对应的位置偏移量之和为实际起始位置。Specifically, when the UE accesses the channel through the LBT access mechanism in the initial position corresponding to the identifier of any one of the identifiers of the at least two symbols included in the first start location information, the UE determines the identifier of the any symbol. The sum of the corresponding starting position and the position offset corresponding to the starting position is the actual starting position.
例如,当第一起始位置信息中包含符号0(符号0对应第一起始位置)和符号7(符号7对应第二起始位置),当UE在第一起始位置之前通过LBT接入机制接入信道时,假设UE接收到的第二起始位置信息为0、25us、25us+TA和1中的位置偏移量0,UE则确定位置1(即第一起始位置与位置偏移量0之和)符号0为实际起始位置;若UE在第一起始位置没有抢占到信道,则UE在第二起始位置之前,通过LBT接入机制接入信道,假定UE接收到的第二起始位置信息为0、25us、25us+TA和1中的位置偏移量25us,UE确定位置2(即第二起始位置和位置偏移量25us之和)7+25us为实际起始位置。For example, when the first start location information includes the symbol 0 (the symbol 0 corresponds to the first start position) and the symbol 7 (the symbol 7 corresponds to the second start position), when the UE accesses through the LBT access mechanism before the first start position In the case of the channel, it is assumed that the second starting position information received by the UE is 0, 25 us, 25 us + TA and the position offset 0 in 1, and the UE determines the position 1 (ie, the first starting position and the position offset amount 0). And the symbol 0 is the actual starting position; if the UE does not preempt the channel at the first starting position, the UE accesses the channel through the LBT access mechanism before the second starting position, assuming that the UE receives the second start The position information is a position offset of 25 us in 0, 25 us, 25 us + TA, and 1, and the UE determines that position 2 (ie, the sum of the second start position and the position offset 25us) 7 + 25 us is the actual start position.
此处仅对确定实际起始位置的方法进行描述,通过LBT接入机制接入信道的方法请参考下面实施例的具体描述。The method for determining the actual starting position is described here. For the method of accessing the channel through the LBT access mechanism, refer to the detailed description of the following embodiments.
S204、UE在通过LBT接入机制接入信道后,在实际起始位置上向基站发送上行数据。S204: After accessing the channel by using the LBT access mechanism, the UE sends uplink data to the base station at an actual starting position.
其中,UE可以在第一起始位置信息中包括的至少两个符号的标识中任一符号的标识对应的起始位置,通过LBT接入机制接入信道。The UE may access the channel through the LBT access mechanism in the start position corresponding to the identifier of any one of the identifiers of the at least two symbols included in the first start location information.
具体的,若UE在第一起始位置基于LBT机制接入信道失败,则在第二起始位置基于LBT机制接入信道。其中,第一起始位置和第二起始位置分别为与第一起始位置信息包括的至少两个符号的标识对应的起始位置,第一起始位置在子帧中的位置比第二起始位置在子帧中的位置靠前。Specifically, if the UE fails to access the channel based on the LBT mechanism at the first starting location, the channel is accessed based on the LBT mechanism at the second starting location. The first starting position and the second starting position are respectively starting positions corresponding to the identifiers of the at least two symbols included in the first starting position information, and the position of the first starting position in the subframe is lower than the second starting position. The position in the sub-frame is on the front.
例如,如图3所示,第一起始位置为符号0对应的起始位置,第二起始位置为符号7对应的起始位置。UE先在第一起始位置基于LBT机制接入信道,若UE在第一起始位置接入成功,则确定位置1为实际起始位置,并在位置1传输上行数据;若UE在第一起始位置接入失败,则继续在第二起始位置基于LBT机制接入信道,若UE在第二起始位置接入成功,则确定位置2为实际起始位置,并在位置2传输上行数据。For example, as shown in FIG. 3, the first starting position is the starting position corresponding to the symbol 0, and the second starting position is the starting position corresponding to the symbol 7. The UE first accesses the channel based on the LBT mechanism at the first starting position. If the UE successfully accesses the first starting location, it determines that the location 1 is the actual starting location, and transmits the uplink data at the location 1; if the UE is in the first starting location If the access fails, the access channel is continued based on the LBT mechanism at the second starting position. If the UE successfully accesses the second starting location, the location 2 is determined to be the actual starting location, and the uplink data is transmitted at the location 2.
由于现有技术中,UE在一个子帧上只有一个发送上行数据的位置,而当UE通过LBT接入信道失败时,UE需要等待基站的下一次调度,即便该子帧
后面的信道已经空闲,UE也不能直接接入信道发送数据,因此信道的利用率低。而本发明实施例中,由于UE可以在至少两个符号的标识对应的至少两个起始位置接入信道,因此增加了UE接入信道的机会,从而提高了信道的利用率。In the prior art, the UE has only one location for transmitting uplink data in one subframe, and when the UE fails to access the channel through the LBT, the UE needs to wait for the next scheduling of the base station, even if the subframe
The latter channel is already idle, and the UE cannot directly access the channel to transmit data, so the channel utilization is low. In the embodiment of the present invention, since the UE can access the channel in at least two starting locations corresponding to the identifiers of the at least two symbols, the opportunity for the UE to access the channel is increased, thereby improving the utilization of the channel.
本发明实施例提供一种上行数据传输方法,UE通过LBT接入机制接入信道,并在确定的实际起始位置上发送上行数据。由于UE通过LBT接入机制接入信道时,可以在至少两个符号的标识对应的至少两个起始位置接入信道,因此增加了UE接入信道的机会,从而提高了信道的利用率。The embodiment of the invention provides an uplink data transmission method, in which the UE accesses the channel through the LBT access mechanism, and sends the uplink data at the determined actual starting position. When the UE accesses the channel through the LBT access mechanism, the channel can be accessed in at least two starting locations corresponding to the identifiers of the at least two symbols, thereby increasing the chance of the UE accessing the channel, thereby improving channel utilization.
进一步的,基站可以通过向UE发送指示信息的方式,指示UE采用现有技术中的方法传输上行数据,或者采用本发明实施例提供的上行数据传输方法传输上行数据。具体的,如图4所示,与图2所示的上行数据传输方法相比,本发明实施例的方法还可以包括S401-S403:Further, the base station may send the uplink data by using the method in the prior art, or transmit the uplink data by using the uplink data transmission method provided by the embodiment of the present invention. Specifically, as shown in FIG. 4, compared with the uplink data transmission method shown in FIG. 2, the method in the embodiment of the present invention may further include S401-S403:
S401、基站向UE发送第一指示信息。S401. The base station sends first indication information to the UE.
其中,第一指示信息可以用于指示UE确定该UE是否具有至少两个上行发送位置,即第一指示信息可以用于指示UE采用现有技术中的方法传输上行数据,即只有一个上行数据发送位置。例如,只有一个上行数据发送位置符号0;或者从符号0,25us,25us+TA,符号1中选择一个位置进行发送。或者采用本发明实施例提供的可以在至少两个位置上发送上行数据,例如,当采用符号0和符号7为所述上行数据的起始位置时,先在符号0进行LBT接入信道,若LBT成功,则在符号0发送上行数据;若LBT失败,则在符号7进行信道检测,如果LBT成功,则在符号7发送该上行数据。此时UE具有两个上行数据发送位置。The first indication information may be used to indicate that the UE determines whether the UE has at least two uplink sending positions, that is, the first indication information may be used to indicate that the UE transmits uplink data by using a method in the prior art, that is, only one uplink data is sent. position. For example, only one uplink data transmission location symbol 0; or one symbol from symbol 0, 25us, 25us + TA, symbol 1 is transmitted. Alternatively, the uplink data may be sent in at least two locations according to the embodiment of the present invention. For example, when the symbol 0 and the symbol 7 are used as the starting position of the uplink data, the LBT access channel is first performed at the symbol 0. If the LBT is successful, the uplink data is transmitted at symbol 0; if the LBT fails, channel detection is performed at symbol 7, and if the LBT is successful, the uplink data is transmitted at symbol 7. At this time, the UE has two uplink data transmission locations.
基站可以在通过RRC消息或MAC CE消息,向UE发送第一起始位置信息时,将第一指示信息发送至UE;基站也可以在向UE发送第一起始位置信息之前,通过RRC消息或MAC CE消息将第一指示信息发送至UE;基站还可以在向UE发送第一起始位置信息之后,通过RRC消息或MAC CE消息将第一指示信息发送至UE。The base station may send the first indication information to the UE when sending the first start location information to the UE by using an RRC message or a MAC CE message; the base station may also pass the RRC message or the MAC CE before sending the first start location information to the UE. The message sends the first indication information to the UE. The base station may further send the first indication information to the UE by using an RRC message or a MAC CE message after sending the first start location information to the UE.
S402、UE接收第一指示信息。S402. The UE receives the first indication information.
其中,UE可以通过RRC消息或MAC CE消息接收第一指示信息。The UE may receive the first indication information by using an RRC message or a MAC CE message.
S403、UE根据第一指示信息,确定UE是否具有至少两个上行发送位置。S403. The UE determines, according to the first indication information, whether the UE has at least two uplink sending locations.
示例性的,若UE根据第一指示信息,确定该UE不具有多个上行发送位置,即UE在一个子帧上只有一个发送上行数据的位置(即一个起始位置),则该UE在该一个起始位置上通过LBT接入信道,若UE通过LBT接入成功,则在该起始位置上传输数据,若UE通过LBT接入失败,则UE等待基站的下一次调度。Exemplarily, if the UE determines, according to the first indication information, that the UE does not have multiple uplink sending positions, that is, the UE has only one location (ie, a starting location) for transmitting uplink data in one subframe, the UE is in the If the UE successfully accesses through the LBT, the data is transmitted at the initial location. If the UE fails to access through the LBT, the UE waits for the next scheduling of the base station.
示例性的,若UE根据第一指示信息,确定该UE具有至少两个上行发送位置,即UE在一个子帧上有至少两个起始位置,则该UE在该至少两个起始位置中的任一起始位置上通过LBT接入信道,若UE通过LBT接入失败,则UE继续在两个起始位置上通过LBT接入信道。
Exemplarily, if the UE determines, according to the first indication information, that the UE has at least two uplink sending positions, that is, the UE has at least two starting positions in one subframe, the UE is in the at least two starting positions. At any starting position, the channel is accessed through the LBT. If the UE fails to access through the LBT, the UE continues to access the channel through the LBT at the two starting positions.
由于UE可以根据基站发送的第一指示信息,确定该UE是否具有至少两个上行发送位置;因此,本发明实施例提供的上行数据传输方法可以减少UE盲检测的机会,降低功耗,从而保证UE传输数据的灵活性。The UE can determine whether the UE has at least two uplink sending positions according to the first indication information sent by the base station. Therefore, the uplink data transmission method provided by the embodiment of the present invention can reduce the chance of blind detection of the UE and reduce power consumption, thereby ensuring The flexibility of the UE to transmit data.
需要说明的是,本发明实施例中的S201和S401无严格顺序要求,可以是先执行S201,再执行S401;也可以是先执行S401,再执行S201;还可以是同时执行S201和S401。图4仅以先执行S201,再执行S401为例,对本发明实施例的另一种上行数据传输方法进行说明。It should be noted that, in S201 and S401 in the embodiment of the present invention, there is no strict order requirement, and S201 may be performed first, and then S401 may be performed; S401 may be performed first, and then S201 may be performed; or S201 and S401 may be simultaneously executed. FIG. 4 illustrates another uplink data transmission method according to an embodiment of the present invention by taking S201 first and then performing S401 as an example.
进一步的,UE可以根据基站发送的第二指示信息确定上行数据传输的结束位置,即确定UE在上行数据的最后一个子帧传输数据所采用的UpPTS配置。具体的,如图5所示,与图2所示的上行数据传输方法相比,本发明实施例的方法还可以包括S501-S503:Further, the UE may determine, according to the second indication information sent by the base station, an end position of the uplink data transmission, that is, determine an UpPTS configuration used by the UE to transmit data in the last subframe of the uplink data. Specifically, as shown in FIG. 5, compared with the uplink data transmission method shown in FIG. 2, the method in the embodiment of the present invention may further include S501-S503:
S501、基站向UE发送第二指示信息。S501. The base station sends second indication information to the UE.
其中,第二指示信息用于指示UE发送上行数据的最后一个子帧的UpPTS配置,该UpPTS配置由基站根据第一起始位置信息确定。基站可以通过DCI向UE发送第二指示信息。The second indication information is used to instruct the UE to send an UpPTS configuration of the last subframe of the uplink data, where the UpPTS configuration is determined by the base station according to the first starting location information. The base station may send the second indication information to the UE by using the DCI.
示例性的,基站可以在DCI中增加相应的比特信息,并将该比特信息传输至UE,该比特信息用于指示UE发送上行数据的最后一个子帧的UpPTS配置。Exemplarily, the base station may add corresponding bit information in the DCI, and transmit the bit information to the UE, where the bit information is used to indicate that the UE sends the UpPTS configuration of the last subframe of the uplink data.
在REL.14的研究课题中,对UpPTS结构进行了研究,定义了新的不同符号长度的UpPTS。对于正常的CP,UpPTS可以用于传输数据的符号数目为2、3、4和5;对于扩展的CP,UpPTS可以用于传输数据的符号数目为1、2、3、4。具体的,标准36.211中有关UpPTS和下行导频时隙(Downlink PTS,DwPTS)的描述如表2所示:
In the research topic of REL.14, the UpPTS structure was studied and new UpPTSs with different symbol lengths were defined. For a normal CP, the number of symbols that the UpPTS can use to transmit data is 2, 3, 4, and 5; for an extended CP, the number of symbols that the UpPTS can use to transmit data is 1, 2, 3, 4. Specifically, the description of the UpPTS and the Downlink PTS (DwPTS) in the standard 36.211 is as shown in Table 2:
表2Table 2
示例性的,本发明实施例中的第一起始位置信息可以包括一个上行子帧中的符号0和符号7,或者一个上行子帧中的符号0、符号4、符号7和符号11,则X可以取值为2或者4,则基站根据第一起始位置信息确定的UpPTS配置可以有6种,且UpPTS用于传输数据的符号数目为1、2、3、4、5和6。Exemplarily, the first starting location information in the embodiment of the present invention may include symbol 0 and symbol 7 in one uplink subframe, or symbol 0, symbol 4, symbol 7 and symbol 11 in one uplink subframe, then X The value of the UpPTS configuration determined by the base station according to the first starting location information may be six, and the number of symbols used by the UpPTS for transmitting data is 1, 2, 3, 4, 5, and 6.
S502、UE接收第二指示信息。S502. The UE receives the second indication information.
其中,UE接收基站通过DCI发送的第二指示信息。The UE receives the second indication information that the base station sends through the DCI.
S503、UE在上行数据的最后一个子帧根据第二指示信息指示的UpPTS配置向基站发送上行数据。S503. The UE sends uplink data to the base station according to the UpPTS configuration indicated by the second indication information in the last subframe of the uplink data.
其中,UE在不同的实际起始位置抢占到信道,会导致上行数据的结束位置不同。因此UE可以根据基站发送的第二指示信息,在不同的结束位置按照不同的UpPTS配置发送数据。The UE preempts the channel at different actual starting positions, which causes the end position of the uplink data to be different. Therefore, the UE may send data according to different UpPTS configurations at different end positions according to the second indication information sent by the base station.
示例性的,如图6所示,根据子帧边界对齐原则,假设整个上行数据包包括四个子帧的长度,当UE在符号7对应的起始位置处抢占到信道时,假设UE发送上行数据的实际起始位置为7+25us(即位置2),则该上行数据的最后一个子帧包括7个符号(即半个子帧),此时UE根据基站发送的第二指示信息,获得此时最后一个子帧的UpPTS配置,比如,此时基站指示的是采用6个符号的UpPTS配置,那么UE按照6个符号UpPTS配置发送最后一个子帧的上行数据。Exemplarily, as shown in FIG. 6, according to the principle of subframe boundary alignment, it is assumed that the entire uplink data packet includes the length of four subframes. When the UE preempts the channel at the start position corresponding to the symbol 7, the UE is assumed to send uplink data. The actual starting position is 7+25us (ie, position 2), and the last subframe of the uplink data includes 7 symbols (that is, half of the subframe), and the UE obtains the current indication according to the second indication information sent by the base station. The UpPTS configuration of the last subframe, for example, when the base station indicates an UpPTS configuration with 6 symbols, the UE transmits the uplink data of the last subframe according to the 6-symbol UpPTS configuration.
由于本发明实施例中采用已有UpPTS配置,设计上行子帧的不同结束位置,使得UE可以采用已有的UpPTS结构进行数据传输,从而降低了标准改动,保证整体的信道的解调性能。In the embodiment of the present invention, the existing UpPTS configuration is adopted, and different ending positions of the uplink subframes are designed, so that the UE can use the existing UpPTS structure for data transmission, thereby reducing standard changes and ensuring overall channel demodulation performance.
需要说明的是,本发明实施例中的S204和S501无严格顺序要求,可以
是先执行S204,再执行S501;也可以是先执行S501,再执行S204;还可以是同时执行S204和S501。图5仅以先执行S204,再执行S501为例,对本发明实施例的另一种上行数据传输方法进行说明。It should be noted that S204 and S501 in the embodiment of the present invention have no strict order requirements, and
S204 is executed first, and then S501 is executed; S501 may be executed first, and then S204 may be executed; or S204 and S501 may be simultaneously executed. FIG. 5 illustrates another uplink data transmission method according to an embodiment of the present invention by taking S204 first and then performing S501 as an example.
上述主要从UE和基站的角度对本发明实施例提供的方案进行了介绍。可以理解的是,UE和基站为了实现上述功能,其包含了执行各个功能相应的硬件结构和/或软件模块。本领域技术人员应该很容易意识到,结合本文中所公开的实施例描述的各示例的UE和基站及算法步骤,本发明能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。The solution provided by the embodiment of the present invention is mainly introduced from the perspective of the UE and the base station. It can be understood that the UE and the base station include corresponding hardware structures and/or software modules for performing the respective functions in order to implement the above functions. Those skilled in the art will readily appreciate that the present invention can be implemented in hardware or a combination of hardware and computer software in combination with the UE and base station and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods for implementing the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present invention.
本发明实施例可以根据上述方法示例对UE和基站进行功能模块或者功能单元的划分,例如,可以对应各个功能划分各个功能模块或者功能单元,也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现,也可以采用软件功能模块或者功能单元的形式实现。其中,本发明实施例中对模块或者单元的划分是示意性的,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式。The embodiment of the present invention may perform the division of the function module or the function unit on the UE and the base station according to the foregoing method example. For example, each function module or function unit may be divided according to each function, or two or more functions may be integrated into one. Processing module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules or functional units. The division of a module or a unit in the embodiment of the present invention is schematic, and is only a logical function division. In actual implementation, there may be another division manner.
图7示出了上述实施例中所涉及的UE的一种可能的结构示意图。该UE700可以包括:接收模块701、确定模块702和发送模块703。FIG. 7 shows a possible structural diagram of a UE involved in the above embodiment. The UE 700 may include: a receiving module 701, a determining module 702, and a sending module 703.
其中,接收模块701用于支持上述实施例中的S202、S402和S502,和/或用于本文所描述的技术的其它过程。确定模块702用于支持上述实施例中的S203和S403,和/或用于本文所描述的技术的其它过程。发送模块703用于支持上述实施例中的S204和S503,和/或用于本文所描述的技术的其它过程。The receiving module 701 is configured to support S202, S402, and S502 in the above embodiments, and/or other processes for the techniques described herein. The determination module 702 is for supporting S203 and S403 in the above embodiments, and/or other processes for the techniques described herein. The transmitting module 703 is for supporting S204 and S503 in the above embodiments, and/or other processes for the techniques described herein.
当然,本发明实施例提供的UE 700包括但不限于上述所述的模块,例如UE 700中还可以包括存储模块。存储模块可以用于存储本发明实施例中的起始位置信息。The UE 700 provided by the embodiment of the present invention includes, but is not limited to, the foregoing module. For example, the UE 700 may further include a storage module. The storage module can be used to store the starting location information in the embodiment of the present invention.
在采用集成的单元的情况下,上述确定模块702可以在处理模块中实现,该处理模块可以是处理器或控制器,例如可以是CPU,通用处理器,数字信号处理器(英文:Digital Signal Processor,简称:DSP),专用集成电路(英文:Application-Specific Integrated Circuit,简称:ASIC),现场可编程门阵列(英文:Field Programmable Gate Array,简称:FPGA)或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种举例说明逻辑方框,模块和电路。处理单元也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等。接收模块701和发送模块703可以集成在一个通信模块中实现,该通信模块可以是通信接口。存储模块可以是存储器。In the case of an integrated unit, the above determining module 702 can be implemented in a processing module, which can be a processor or a controller, such as a CPU, a general-purpose processor, or a digital signal processor (English: Digital Signal Processor) , referred to as: DSP), ASIC (English: Application-Specific Integrated Circuit, referred to as: ASIC), Field Programmable Gate Array (English: Field Programmable Gate Array, referred to as: FPGA) or other programmable logic devices, transistor logic devices , hardware components, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processing unit may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The receiving module 701 and the transmitting module 703 can be implemented by being integrated in one communication module, which can be a communication interface. The storage module can be a memory.
当上述处理模块为处理器,存储模块为存储器,通信模块为收发器时,本发明实施例所涉及的UE 700可以为图8所示的UE 800。如图8所示,UE 800
包括:处理器801、存储器802和通信接口803。其中,处理器801、存储器802和通信接口803通过总线804相互连接。When the processing module is a processor, the storage module is a memory, and the communication module is a transceiver, the UE 700 according to the embodiment of the present invention may be the UE 800 shown in FIG. 8. As shown in Figure 8, UE 800
The processor 801, the memory 802, and the communication interface 803 are included. The processor 801, the memory 802, and the communication interface 803 are connected to each other through a bus 804.
其中,总线804可以是外设部件互连标准(英文:Peripheral Component Interconnect,简称:PCI)总线或扩展工业标准结构(英文:Extended Industry Standard Architecture,简称:EISA)总线等。上述总线804可以分为地址总线、数据总线、控制总线等。为便于表示,图8中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。The bus 804 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus 804 can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in Figure 8, but it does not mean that there is only one bus or one type of bus.
UE 800可以包括一个或多个处理器801,即UE 800可以包括多核处理器。The UE 800 may include one or more processors 801, ie, the UE 800 may include a multi-core processor.
本发明实施例还提供一种计算机存储介质,该计算机存储介质中存储有一个或多个程序代码,当UE 800的处理器801执行该程序代码时,该UE 800执行图2、图4和图5中任一附图中的相关方法步骤。The embodiment of the present invention further provides a computer storage medium having one or more program codes stored therein. When the processor 801 of the UE 800 executes the program code, the UE 800 executes the FIG. 2, FIG. 4 and the figure. Related method steps in any of the Figures 5.
其中,本发明实施例提供的UE 800中各个模块的详细描述以及各个模块或单元执行图2、图4和图5中任一附图中的相关方法步骤后所带来的技术效果可以参考本发明方法实施例中的相关描述,此处不再赘述。The detailed description of each module in the UE 800 provided by the embodiment of the present invention and the technical effects brought by each module or unit after performing the related method steps in any of FIG. 2, FIG. 4 and FIG. Related descriptions of the method embodiments of the present invention are not described herein again.
本发明实施例还提供一种基站,图9示出了上述实施例中所涉及的基站的一种可能的结构示意图,该基站900包括:发送模块901。The embodiment of the present invention further provides a base station, and FIG. 9 is a schematic structural diagram of a base station involved in the foregoing embodiment. The base station 900 includes: a sending module 901.
其中,发送模块901用于支持上述实施例中的S201、S401和S501,和/或用于本文所描述的技术的其它过程。The transmitting module 901 is configured to support S201, S401, and S501 in the above embodiments, and/or other processes for the techniques described herein.
当然,本发明实施例提供的基站900包括但不限于上述所述的模块,例如基站900中还可以包括接收模块和存储模块。接收模块可以用于接收UE发送的上行数据。存储模块可以用于存储本发明实施例中的起始位置信息。The base station 900 provided by the embodiment of the present invention includes, but is not limited to, the foregoing modules. For example, the base station 900 may further include a receiving module and a storage module. The receiving module can be configured to receive uplink data sent by the UE. The storage module can be used to store the starting location information in the embodiment of the present invention.
在采用集成的单元的情况下,上述基站900的各个模块可以集成在处理模块中实现,该处理模块可以是处理器或控制器,例如可以是CPU,通用处理器,DSP,ASIC,FPGA或者其他可编程逻辑器件、晶体管逻辑器件、硬件部件或者其任意组合。其可以实现或执行结合本发明公开内容所描述的各种举例说明逻辑方框,模块和电路。处理单元也可以是实现计算功能的组合,例如包含一个或多个微处理器组合,DSP和微处理器的组合等。发送模块901和接收模块可以集成在一个通信模块中实现,该通信模块可以是通信接口。存储模块可以是存储器。In the case of an integrated unit, the various modules of the base station 900 described above may be implemented in a processing module, which may be a processor or a controller, such as a CPU, a general purpose processor, a DSP, an ASIC, an FPGA or the like. Programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processing unit may also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like. The sending module 901 and the receiving module can be implemented by being integrated in one communication module, which can be a communication interface. The storage module can be a memory.
当上述处理模块为处理器,存储模块为存储器,通信模块为收发器时,本发明实施例所涉及的基站900可以为图10所示的基站1000。如图10所示,基站1000包括:处理器1001、存储器1002和通信接口1003。其中,处理器1001、存储器1002和通信接口1003通过总线1004相互连接。When the processing module is a processor, the storage module is a memory, and the communication module is a transceiver, the base station 900 according to the embodiment of the present invention may be the base station 1000 shown in FIG. As shown in FIG. 10, the base station 1000 includes a processor 1001, a memory 1002, and a communication interface 1003. The processor 1001, the memory 1002, and the communication interface 1003 are connected to each other through a bus 1004.
其中,总线1004可以是PCI总线或EISA总线等。上述总线1004可以分为地址总线、数据总线、控制总线等。为便于表示,图10中仅用一条粗线表示,但并不表示仅有一根总线或一种类型的总线。The bus 1004 may be a PCI bus or an EISA bus. The bus 1004 described above can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one thick line is shown in FIG. 10, but it does not mean that there is only one bus or one type of bus.
基站1000可以包括一个或多个处理器1001,即基站1000可以包括多核处理器。
Base station 1000 can include one or more processors 1001, ie, base station 1000 can include a multi-core processor.
本发明实施例还提供一种计算机存储介质,该计算机存储介质中存储有一个或多个程序代码,当基站1000的处理器1001执行该程序代码时,该基站1000执行图2、图4和图5中任一附图中的相关方法步骤。The embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores one or more program codes, and when the processor 1001 of the base station 1000 executes the program code, the base station 1000 executes FIG. 2, FIG. 4 and the figure. Related method steps in any of the Figures 5.
其中,本发明实施例提供的基站1000中各个模块的详细描述以及各个模块或单元执行图2、图4和图5中任一附图中的相关方法步骤后所带来的技术效果可以参考本发明方法实施例中的相关描述,此处不再赘述。The detailed description of each module in the base station 1000 provided by the embodiment of the present invention and the technical effects brought by each module or unit after performing the related method steps in any of FIG. 2, FIG. 4 and FIG. Related descriptions of the method embodiments of the present invention are not described herein again.
通过以上的实施方式的描述,所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,仅以上述各功能模块的划分进行举例说明,实际应用中,可以根据需要而将上述功能分配由不同的功能模块完成,即将装置的内部结构划分成不同的功能模块,以完成以上描述的全部或者部分功能。上述描述的***,装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。Through the description of the above embodiments, those skilled in the art can clearly understand that for the convenience and brevity of the description, only the division of the above functional modules is illustrated. In practical applications, the above functions can be allocated according to needs. It is completed by different functional modules, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. For the specific working process of the system, the device and the unit described above, reference may be made to the corresponding process in the foregoing method embodiments, and details are not described herein again.
在本申请所提供的几个实施例中,应该理解到,所揭露的***,装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示意性的,例如,所述模块或单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个***,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。In the several embodiments provided by the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the modules or units is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be used. Combinations can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
另外,在本申请各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现,也可以采用软件功能单元的形式实现。In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的全部或部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)或处理器执行本申请各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:快闪存储器、移动硬盘、只读存储器、随机存取存储器、磁碟或者光盘等各种可以存储程序代码的介质。The integrated unit, if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application, in essence or the contribution to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium. A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) or processor to perform all or part of the steps of the methods described in various embodiments of the present application. The foregoing storage medium includes: a flash memory, a mobile hard disk, a read only memory, a random access memory, a magnetic disk, or an optical disk, and the like, which can store program codes.
以上所述,仅为本申请的具体实施方式,但本申请的保护范围并不局限于此,任何在本申请揭露的技术范围内的变化或替换,都应涵盖在本申请的保护范围之内。因此,本申请的保护范围应以所述权利要求的保护范围为准。
The foregoing is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present application should be covered by the scope of the present application. . Therefore, the scope of protection of the present application should be determined by the scope of the claims.
Claims (26)
- 一种上行数据传输方法,其特征在于,包括:An uplink data transmission method, comprising:用户设备UE接收上行数据发送的起始位置信息;其中,所述起始位置信息包括第一起始位置信息和第二起始位置信息;所述第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置;所述第二起始位置信息为位置偏移量信息;The user equipment UE receives the start location information of the uplink data transmission, where the start location information includes first start location information and second start location information; the first start location information includes at least two of one subframe An identifier of a symbol; wherein, the identifier of one symbol corresponds to a start position; and the second start position information is position offset information;所述UE根据所述第一起始位置信息和所述第二起始位置信息确定上行数据发送的实际起始位置;Determining, by the UE, an actual starting position of uplink data transmission according to the first starting location information and the second starting location information;所述UE在通过先听后发LBT接入机制接入信道后,在所述实际起始位置上发送上行数据。After the UE accesses the channel by listening to the LBT access mechanism, the UE sends uplink data at the actual starting position.
- 根据权利要求1所述的上行数据传输方法,其特征在于,所述第一起始位置信息由所述UE根据基站发送的无线资源控制RRC消息或媒体接入控制单元MAC CE消息确定;The uplink data transmission method according to claim 1, wherein the first start location information is determined by the UE according to a radio resource control RRC message or a medium access control unit MAC CE message sent by the base station;所述第二起始位置信息由所述UE根据所述基站发送的下行控制信息DCI确定。The second starting location information is determined by the UE according to downlink control information DCI sent by the base station.
- 根据权利要求1或2所述的上行数据传输方法,其特征在于,所述第一起始位置信息包括一个上行子帧中至少两个单载波频分多址接入SC-FDMA符号的标识或至少两个循环前缀的正交频分复用CP-OFDM符号的标识。The uplink data transmission method according to claim 1 or 2, wherein the first start location information includes an identifier of at least two single carrier frequency division multiple access SC-FDMA symbols in an uplink subframe or at least Identification of orthogonal frequency division multiplexed CP-OFDM symbols for two cyclic prefixes.
- 根据权利要求1-3任一项所述的上行数据传输方法,其特征在于,所述第一起始位置信息包括符号0和符号7;或者,The uplink data transmission method according to any one of claims 1 to 3, wherein the first start position information includes a symbol 0 and a symbol 7; or所述第一起始位置信息包括符号0、符号4、符号7和符号11;The first starting position information includes symbol 0, symbol 4, symbol 7 and symbol 11;所述第二起始位置信息包括0、25us、25us+TA和1四个位置偏移量中的任一个。The second home position information includes any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- 根据权利要求1-4任一项所述的上行数据传输方法,其特征在于,所述方法还包括:The uplink data transmission method according to any one of claims 1 to 4, wherein the method further comprises:所述UE接收第一指示信息,所述第一指示信息由所述基站通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息发送;Receiving, by the UE, first indication information, where the first indication information is sent by the base station by using a radio resource control RRC message or a media access control unit MAC CE message;所述UE根据所述第一指示信息,确定所述UE是否具有至少两个上行发送位置。The UE determines, according to the first indication information, whether the UE has at least two uplink sending locations.
- 根据权利要求1-5任一项所述的上行数据传输方法,其特征在于,所述方法还包括:The uplink data transmission method according to any one of claims 1 to 5, wherein the method further comprises:所述UE接收第二指示信息;其中,所述第二指示信息用于指示所述UE发送上行数据的最后一个子帧的上行导频时隙UpPTS配置;所述UpPTS配置由所述基站根据所述第一起始位置信息确定;The UE receives the second indication information, where the second indication information is used to indicate that the UE sends an uplink pilot time slot UpPTS configuration of the last subframe of the uplink data, and the UpPTS configuration is performed by the base station according to the Determining the first starting position information;所述UE在所述上行数据的最后一个子帧根据所述第二指示信息指示的UpPTS配置发送上行数据。The UE sends uplink data according to an UpPTS configuration indicated by the second indication information in a last subframe of the uplink data.
- 一种上行数据传输方法,其特征在于,包括:An uplink data transmission method, comprising:基站向用户设备UE发送上行数据发送的起始位置信息;其中,所述起始位置信息包括第一起始位置信息和第二起始位置信息;所述第一起始位置信息 包括一个子帧中的至少两个符号的标识;其中,一个符号的标识对应一个起始位置;所述第二起始位置信息为位置偏移量信息。The base station sends the start location information of the uplink data transmission to the user equipment UE, where the start location information includes first start location information and second start location information; the first start location information An identifier including at least two symbols in one subframe; wherein an identifier of one symbol corresponds to a start position; and the second start position information is position offset information.
- 根据权利要求7所述的上行数据传输方法,其特征在于,所述基站向用户设备UE发送起始位置信息,包括:The uplink data transmission method according to claim 7, wherein the sending, by the base station, the starting location information to the user equipment UE includes:所述基站通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息,向所述UE发送所述第一起始位置信息;The base station sends the first starting location information to the UE by using a radio resource control RRC message or a media access control unit MAC CE message;所述基站通过下行控制信息DCI,向所述UE发送所述第二起始位置信息。The base station sends the second starting location information to the UE by using downlink control information DCI.
- 根据权利要求7或8所述的上行数据传输方法,其特征在于,所述第一起始位置信息包括一个上行子帧中至少两个单载波频分多址接入SC-FDMA符号的标识或至少两个循环前缀的正交频分复用CP-OFDM符号的标识。The uplink data transmission method according to claim 7 or 8, wherein the first starting location information comprises an identifier of at least two single carrier frequency division multiple access SC-FDMA symbols in an uplink subframe or at least Identification of orthogonal frequency division multiplexed CP-OFDM symbols for two cyclic prefixes.
- 根据权利要求7-9任一项所述的上行数据传输方法,其特征在于,所述第一起始位置信息包括符号0和符号7;或者,The uplink data transmission method according to any one of claims 7 to 9, wherein the first start position information includes a symbol 0 and a symbol 7; or所述第一起始位置信息包括符号0、符号4、符号7和符号11;The first starting position information includes symbol 0, symbol 4, symbol 7 and symbol 11;所述第二起始位置信息包括0、25us、25us+TA和1四个位置偏移量中的任一个。The second home position information includes any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- 根据权利要求7-10任一项所述的上行数据传输方法,其特征在于,所述方法还包括:The method for transmitting an uplink data according to any one of claims 7 to 10, wherein the method further comprises:所述基站通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息,向所述UE发送第一指示信息,所述第一指示信息用于指示所述UE是否具有至少两个上行发送位置。And the first base station sends the first indication information to the UE by using a radio resource control RRC message or a media access control unit MAC CE message, where the first indication information is used to indicate whether the UE has at least two uplink sending positions.
- 根据权利要求7-11任一项所述的上行数据传输方法,其特征在于,所述方法还包括:The method for transmitting an uplink data according to any one of claims 7 to 11, wherein the method further comprises:所述基站向所述UE发送第二指示信息;其中,所述第二指示信息用于指示所述UE发送上行数据的最后一个子帧的上行导频时隙UpPTS配置;所述UpPTS配置由所述基站根据所述第一起始位置信息确定。The base station sends the second indication information to the UE, where the second indication information is used to indicate that the UE sends an uplink pilot time slot UpPTS configuration of the last subframe of the uplink data; The base station determines according to the first starting location information.
- 一种用户设备UE,其特征在于,包括:A user equipment (UE), comprising:接收模块,用于接收上行数据发送的起始位置信息;其中,所述起始位置信息包括第一起始位置信息和第二起始位置信息;所述第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置;所述第二起始位置信息为位置偏移量信息;a receiving module, configured to receive start location information of uplink data transmission, where the start location information includes first start location information and second start location information; the first start location information includes at least one subframe An identifier of two symbols; wherein, the identifier of one symbol corresponds to a start position; and the second start position information is position offset information;确定模块,用于根据所述第一起始位置信息和所述第二起始位置信息确定上行数据发送的实际起始位置;a determining module, configured to determine an actual starting position of uplink data transmission according to the first starting location information and the second starting location information;发送模块,用于在通过先听后发LBT接入机制接入信道后,在所述实际起始位置上发送上行数据。The sending module is configured to send uplink data at the actual starting position after accessing the channel by listening to the LBT access mechanism.
- 根据权利要求13所述的UE,其特征在于,所述第一起始位置信息由所述UE根据基站发送的无线资源控制RRC消息或媒体接入控制单元MAC CE消息确定;The UE according to claim 13, wherein the first starting location information is determined by the UE according to a radio resource control RRC message or a medium access control unit MAC CE message sent by the base station;所述第二起始位置信息由所述UE根据所述基站发送的下行控制信息DCI确定。 The second starting location information is determined by the UE according to downlink control information DCI sent by the base station.
- 根据权利要求13或14所述的UE,其特征在于,所述第一起始位置信息包括一个上行子帧中至少两个单载波频分多址接入SC-FDMA符号的标识或至少两个循环前缀的正交频分复用CP-OFDM符号的标识。The UE according to claim 13 or 14, wherein the first starting location information comprises an identifier of at least two single carrier frequency division multiple access SC-FDMA symbols in an uplink subframe or at least two cycles Identification of prefixed orthogonal frequency division multiplexing CP-OFDM symbols.
- 根据权利要求13-15任一项所述的UE,其特征在于,所述第一起始位置信息包括符号0和符号7;或者,The UE according to any one of claims 13-15, wherein the first starting location information comprises a symbol 0 and a symbol 7; or所述第一起始位置信息包括符号0、符号4、符号7和符号11;The first starting position information includes symbol 0, symbol 4, symbol 7 and symbol 11;所述第二起始位置信息包括0、25us、25us+TA和1四个位置偏移量中的任一个。The second home position information includes any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- 根据权利要求13-16任一项所述的UE,其特征在于,所述接收模块,还用于接收第一指示信息,所述第一指示信息由所述基站通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息发送;The UE according to any one of claims 13 to 16, wherein the receiving module is further configured to receive first indication information, where the first indication information is controlled by the base station by using a radio resource to control an RRC message or a media. Access control unit MAC CE message transmission;所述确定模块,还用于根据所述第一指示信息,确定所述UE是否具有至少两个上行发送位置。The determining module is further configured to determine, according to the first indication information, whether the UE has at least two uplink sending locations.
- 根据权利要求13-17任一项所述的UE,其特征在于,所述接收模块,还用于接收第二指示信息;其中,所述第二指示信息用于指示所述UE发送上行数据的最后一个子帧的上行导频时隙UpPTS配置;所述UpPTS配置由所述基站根据所述第一起始位置信息确定;The UE according to any one of claims 13-17, wherein the receiving module is further configured to receive second indication information, where the second indication information is used to indicate that the UE sends uplink data. An uplink pilot time slot UpPTS configuration of the last subframe; the UpPTS configuration is determined by the base station according to the first start location information;所述发送模块,还用于在所述上行数据的最后一个子帧根据所述第二指示信息指示的UpPTS配置发送上行数据。The sending module is further configured to send uplink data according to an UpPTS configuration indicated by the second indication information in a last subframe of the uplink data.
- 一种基站,其特征在于,包括:A base station, comprising:发送模块,用于向用户设备UE发送上行数据发送的起始位置信息;其中,所述起始位置信息包括第一起始位置信息和第二起始位置信息;所述第一起始位置信息包括一个子帧中至少两个符号的标识;其中,一个符号的标识对应一个起始位置;所述第二起始位置信息为位置偏移量信息。a sending module, configured to send, to the user equipment UE, start location information of uplink data transmission, where the start location information includes first start location information and second start location information; the first start location information includes a An identifier of at least two symbols in the subframe; wherein, the identifier of one symbol corresponds to a start position; and the second start position information is position offset information.
- 根据权利要求19所述的基站,其特征在于,所述发送模块,具体用于:The base station according to claim 19, wherein the sending module is specifically configured to:通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息,向所述UE发送所述第一起始位置信息;Transmitting, by the radio resource control RRC message or the media access control unit MAC CE message, the first starting location information to the UE;通过下行控制信息DCI,向所述UE发送所述第二起始位置信息。The second starting location information is sent to the UE by using downlink control information DCI.
- 根据权利要求19或20所述的基站,其特征在于,所述第一起始位置信息包括一个上行子帧中至少两个单载波频分多址接入SC-FDMA符号的标识或至少两个循环前缀的正交频分复用CP-OFDM符号的标识。The base station according to claim 19 or 20, wherein the first starting location information comprises an identifier of at least two single carrier frequency division multiple access SC-FDMA symbols in an uplink subframe or at least two cycles Identification of prefixed orthogonal frequency division multiplexing CP-OFDM symbols.
- 根据权利要求19-21任一项所述的基站,其特征在于,所述第一起始位置信息包括符号0和符号7;或者,The base station according to any one of claims 19 to 21, wherein the first start position information includes a symbol 0 and a symbol 7; or所述第一起始位置信息包括符号0、符号4、符号7和符号11;The first starting position information includes symbol 0, symbol 4, symbol 7 and symbol 11;所述第二起始位置信息包括0、25us、25us+TA和1四个位置偏移量中的任一个。The second home position information includes any one of four position offsets of 0, 25 us, 25 us + TA, and one.
- 根据权利要求19-22任一项所述的基站,其特征在于,所述发送模块,还用于通过无线资源控制RRC消息或媒体接入控制单元MAC CE消息,向所 述UE发送第一指示信息,所述第一指示信息用于指示所述UE是否具有至少两个上行发送位置。The base station according to any one of claims 19 to 22, wherein the sending module is further configured to control an RRC message or a medium access control unit MAC CE message by using a radio resource, The UE sends the first indication information, where the first indication information is used to indicate whether the UE has at least two uplink sending locations.
- 根据权利要求19-23任一项所述的基站,其特征在于,所述发送模块,还用于向所述UE发送第二指示信息;其中,所述第二指示信息用于指示所述UE发送上行数据的最后一个子帧的上行导频时隙UpPTS配置;所述UpPTS配置由所述基站根据所述第一起始位置信息确定。The base station according to any one of claims 19 to 23, wherein the sending module is further configured to send second indication information to the UE, where the second indication information is used to indicate the UE An uplink pilot time slot UpPTS configuration of a last subframe in which uplink data is transmitted; the UpPTS configuration is determined by the base station according to the first start location information.
- 一种用户设备UE,其特征在于,所述UE包括:处理器、存储器和通信接口;A user equipment UE, characterized in that the UE comprises: a processor, a memory and a communication interface;所述存储器用于存储计算机执行指令,所述处理器、所述通信接口与所述存储器通过总线连接,当所述UE运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述UE执行如权利要求1-6中任一项所述的上行数据传输方法。The memory is configured to store a computer execution instruction, the processor, the communication interface is connected to the memory by a bus, and when the UE is running, the processor executes the computer execution instruction stored by the memory, The method for causing the UE to perform the uplink data transmission method according to any one of claims 1-6.
- 一种基站,其特征在于,所述基站包括:处理器、存储器和通信接口;A base station, the base station comprising: a processor, a memory, and a communication interface;所述存储器用于存储计算机执行指令,所述处理器、所述通信接口与所述存储器通过总线连接,当所述基站运行时,所述处理器执行所述存储器存储的所述计算机执行指令,以使所述基站执行如权利要求7-12中任一项所述的上行数据传输方法。 The memory is configured to store a computer execution instruction, the processor, the communication interface is connected to the memory by a bus, and when the base station is running, the processor executes the computer execution instruction stored by the memory, The base station is configured to perform the uplink data transmission method according to any one of claims 7-12.
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