WO2022082791A1 - 通信方法和通信装置 - Google Patents

通信方法和通信装置 Download PDF

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Publication number
WO2022082791A1
WO2022082791A1 PCT/CN2020/123440 CN2020123440W WO2022082791A1 WO 2022082791 A1 WO2022082791 A1 WO 2022082791A1 CN 2020123440 W CN2020123440 W CN 2020123440W WO 2022082791 A1 WO2022082791 A1 WO 2022082791A1
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WO
WIPO (PCT)
Prior art keywords
carrier
uplink
sul
target cell
information
Prior art date
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PCT/CN2020/123440
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English (en)
French (fr)
Inventor
林雁
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP20958373.1A priority Critical patent/EP4216633A4/en
Priority to PCT/CN2020/123440 priority patent/WO2022082791A1/zh
Priority to CN202080015425.3A priority patent/CN114667785A/zh
Publication of WO2022082791A1 publication Critical patent/WO2022082791A1/zh
Priority to US18/304,388 priority patent/US20230262561A1/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/18—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection
    • H04W36/185—Performing reselection for specific purposes for allowing seamless reselection, e.g. soft reselection using make before break
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0072—Transmission or use of information for re-establishing the radio link of resource information of target access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of communication, and in particular, to a communication method and a communication device.
  • the dual active protocol stack (DAPS) handover (also known as 0ms handover) is essentially a soft handover: when the handover occurs, the user equipment (UE) needs to complete the random access to the target cell successfully.
  • the air interface signal with the source cell is disconnected, including signaling connection and data; during the handover process, the UE simultaneously receives and transmits the signals of the source cell and the target cell, so as to realize uninterrupted services.
  • a normal hard handover is that the UE immediately disconnects the signal from the source cell when the handover occurs.
  • DAPS handover can reduce the interruption time introduced by handover, make the interruption time close to or equal to 0ms, and improve the reliability of handover, providing UE with a seamless handover communication experience.
  • the present application provides a communication method and a communication device, which can realize DAPS handover in a SUL scenario.
  • a communication method including: receiving first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes the first auxiliary uplink SUL carrier and the first uplink carrier.
  • the first SUL carrier and the first uplink carrier share the cell identity of the source cell; receive a dual activation protocol stack DAPS handover message from the source cell, the DAPS handover message includes target cell information, and the target cell information is used for Indicates the carrier of the target cell, the carrier of the target cell includes at least one carrier in the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier share the cell identity of the target cell; a carrier in the source cell Send an uplink signal on the target cell and initiate a random access procedure on a carrier of the target cell.
  • one of the carriers is respectively selected to communicate with the source cell and the target cell.
  • Baseband processing resources to reduce the interruption time introduced by handover.
  • the carrier of the source cell includes a first SUL carrier and a first uplink carrier
  • sending an uplink signal on one carrier of the source cell includes:
  • the uplink signal is only sent on the carrier on which the physical uplink control channel PUCCH is configured, wherein the carrier on which the PUCCH is configured is the first SUL carrier or the first uplink carrier.
  • the carrier of the source cell includes a first SUL carrier and a first uplink carrier
  • sending an uplink signal on one carrier of the source cell includes: only the first SUL carrier Send an upstream signal.
  • the terminal equipment uses the SUL carrier to communicate with the source cell, which can improve data throughput and cell edge coverage.
  • the first downlink control information DCI from the source cell is received, and the first DCI is parsed based on the expectations of the first SUL carrier and the first uplink carrier.
  • the carrier of the target cell includes a second SUL carrier and a second uplink carrier, and after accessing the target cell, the method further includes: only when the physical uplink control is configured The uplink signal is sent on the carrier of the channel PUCCH, wherein the carrier on which the PUCCH is configured is the second SUL carrier or the second uplink carrier.
  • the carrier of the target cell includes a second SUL carrier and a second uplink carrier, and after accessing the target cell, the method further includes: only on the second SUL carrier Send an upstream signal.
  • the terminal equipment uses the SUL carrier to communicate with the target cell, which can improve data throughput and cell edge coverage.
  • the second downlink control information DCI from the target cell is received, and the second DCI is parsed based on the expectations of the second SUL carrier and the second uplink carrier.
  • the carrier of the source cell includes a first SUL carrier and a first uplink carrier; before receiving the DAPS handover message, the method further includes: receiving configuration information from the source cell, The configuration information is used to release one of the first SUL carrier and the first uplink carrier.
  • the method further includes: receiving second information from the target cell, where the second information is used to indicate the third carrier of the target cell;
  • the uplink signal is sent on one of all the carriers indicated by the target cell information and the second information.
  • the method before receiving the first information, further includes: sending a first capability message to the source cell, where the first capability message includes instructions for indicating that the SUL scenario supports DAPS handover instruction information.
  • a communication method including: sending a first capability message to a source cell, where the first capability message includes indication information for indicating that the assisted uplink SUL scenario supports DAPS handover; receiving the first information from the source cell , the first information is used to indicate the carrier of the source cell, the carrier of the source cell includes at least one of the first auxiliary uplink SUL carrier and the first uplink carrier, wherein the first SUL carrier and the first uplink carrier share the cell of the source cell Identification; receive a dual activation protocol stack DAPS handover message from the source cell, the DAPS handover message includes target cell information, the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes the second SUL carrier and the second uplink carrier. At least one carrier, wherein the second SUL carrier and the second uplink carrier share the cell identity of the target cell.
  • the terminal equipment reports to the source base station whether the UE supports DAPS handover in the SUL scenario, so that the terminal equipment can use the receiving and sending channels and baseband processing resources to reduce the interruption time introduced by the handover.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; before receiving the DAPS handover message, the method further includes: receiving configuration information from the source cell , the configuration information is used to release one of the first SUL carrier and the first uplink carrier.
  • the carrier of the source cell includes a first SUL carrier and a first uplink carrier; the method further includes: sending an uplink signal on a carrier of the source cell, and sending an uplink signal on the target cell A random access procedure is initiated on one carrier of the cell.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier, and an uplink signal is sent on a carrier of the source cell, including:
  • the uplink signal is only sent on the carrier on which the physical uplink control channel PUCCH is configured, wherein the carrier on which the PUCCH is configured is the first SUL carrier or the first uplink carrier.
  • the carrier of the source cell includes a first SUL carrier and a first uplink carrier
  • sending an uplink signal on one carrier of the source cell includes: only on the first SUL carrier Send an upstream signal.
  • the terminal equipment uses the SUL carrier to communicate with the source cell, which can improve data throughput and cell edge coverage.
  • the first downlink control information DCI from the source cell is received, and the first DCI is parsed based on the expectations of the first SUL carrier and the first uplink carrier.
  • the carrier of the target cell includes a second SUL carrier and a second uplink carrier
  • the method further includes: only when the physical uplink control is configured The uplink signal is sent on the carrier of the channel PUCCH, wherein the carrier on which the PUCCH is configured is the second SUL carrier or the second uplink carrier.
  • the carrier of the target cell includes a second SUL carrier and a second uplink carrier, and after accessing the target cell, the method further includes: only using the second SUL carrier send the upstream signal.
  • the terminal equipment uses the SUL carrier to communicate with the target cell, which can improve data throughput and cell edge coverage.
  • the second downlink control information DCI from the target cell is received, and the second DCI is parsed based on the expectations of the second SUL carrier and the second uplink carrier.
  • a communication method including: receiving first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes a first auxiliary uplink SUL carrier and one of the first uplink carrier at least one carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell; receive a dual activation protocol stack DAPS handover message from the source cell, the DAPS handover message includes target cell information, and the target cell information is used for Indicates the carrier of the target cell, where the carrier of the target cell includes at least one of the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier share the cell identity of the target cell; at least one of the source cells When the carrier and at least one carrier of the target cell belong to the same frequency point or the same frequency band, an uplink signal is sent on one or two carriers of the source cell, and a random access procedure is initiated on one carrier of the target cell.
  • the terminal device can reduce the release of the carrier by judging whether the frequency points of the multiple carriers are the same or similar, thereby improving the data throughput and the coverage of the cell edge.
  • the transmission is sent on one or two carriers of the source cell.
  • the uplink signal includes: the first information includes a first SUL carrier and a first NUL carrier, the target cell information includes a second SUL carrier, and the second SUL carrier and the first SUL carrier have the same frequency or belong to the same frequency band
  • the communication apparatus transmits the uplink signal on the first SUL carrier and the first NUL carrier.
  • the transmission is sent on one or two carriers of the source cell.
  • the uplink signal includes: the first information indicates the first SUL carrier and the first NUL carrier, the target cell information includes the second NUL carrier, and the second NUL carrier and the first NUL carrier have the same frequency or belong to the same frequency band
  • the communication apparatus sends an uplink signal on the first SUL carrier and the first NUL carrier.
  • the method further includes: receiving second information from the target cell, where the second information is used to indicate the The third carrier of the target cell; when at least one carrier of the source cell and at least one carrier of the target cell belong to the same frequency point or the same frequency band, an uplink signal is sent on one or two carriers of the target cell.
  • the transmission is sent on one or two carriers of the target cell.
  • the uplink signal includes: the carrier of the target cell configured in the target cell and the second information includes the second SUL carrier and the second NUL carrier, the first information includes the first SUL carrier, and the second SUL carrier and the first SUL carrier.
  • the communication device sends the uplink signal on the second SUL carrier, the second NUL carrier and the first SUL carrier.
  • the transmission is sent on one or two carriers of the target cell.
  • the uplink signal includes: the target cell carrier configured in the target cell and the second information includes the second SUL carrier and the second NUL carrier, the first information includes the first NUL carrier, and the second NUL carrier and the first NUL carrier.
  • the communication device sends the uplink signal on the second SUL carrier, the second NUL carrier and the first NUL carrier.
  • the second downlink control information DCI from the target cell is received, and the second DCI is parsed based on the expectations of the second SUL carrier and the second uplink carrier.
  • the method before receiving the first information, further includes: sending a first capability message to the source cell, where the first capability message includes instructions for indicating that the SUL scenario supports DAPS handover instruction information.
  • a communication method comprising: receiving first information from a source cell, where the first information is used to indicate one or more carriers of the source cell; receiving a dual activation protocol stack DAPS handover message from the source cell, The DAPS handover message includes target cell information, and the target cell information is used to indicate one or more carriers of the target cell; when a carrier of the source cell and a carrier of the target cell belong to the same frequency point or the same frequency band, a carrier of the source cell and a carrier of the target cell belong to the same frequency or the same frequency band. Or send uplink signals on two carriers, and initiate a random access procedure on one carrier of the target cell.
  • the terminal device can reduce the release of the carrier by judging whether the frequency points of the multiple carriers are the same or similar, thereby improving the data throughput and the coverage of the cell edge.
  • the carrier of the target cell includes multiple carriers, and after accessing the target cell, the method further includes: at least one carrier of the source cell and at least one carrier of the target cell When one carrier belongs to the same frequency point or the same frequency band, the uplink signal is sent on one or two carriers of the target cell.
  • a fifth aspect provides a communication method, including: receiving first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes the first auxiliary uplink SUL carrier and the first uplink carrier. at least one carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell; receive a dual activation protocol stack DAPS handover message from the source cell, the DAPS handover message includes target cell information, and the target cell information is used for Indicates the carrier of the target cell, the carrier of the target cell includes at least one carrier in the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier share the cell identity of the target cell; Between the carriers of the target cell, uplink signals are respectively sent in a time division multiplexing manner based on the first time interval.
  • the DAPS switching function can also be implemented on a low-end UE that only supports one carrier.
  • the method before receiving the DAPS handover message, the method further includes: sending second capability information to the source cell, where the second capability information is used to indicate the first time interval.
  • the method before receiving the first information, further includes: sending a first capability message to the source cell, where the first capability message includes instructions for indicating that the SUL scenario supports DAPS handover instruction information.
  • a communication method comprising: receiving first information from a source cell, where the first information is used to indicate one or more carriers of the source cell; receiving a dual activation protocol stack DAPS handover message from the source cell, The DAPS handover message includes target cell information, and the target cell information is used to indicate one or more carriers of the target cell; between the carrier of the source cell and the carrier of the target cell, the uplink signals are respectively sent based on the time division multiplexing method of the first time interval .
  • the DAPS switching function can also be implemented on a low-end UE that only supports one carrier.
  • the method before receiving the DAPS handover message, the method further includes: sending second capability information to the source cell, where the second capability information is used to indicate the first time interval.
  • the present application provides a communication device, the communication device having the function of implementing the method in any one of the first to sixth aspects and any possible implementation manners of the first to sixth aspects.
  • the functions can be implemented by hardware, or by executing corresponding software by hardware.
  • the hardware or software includes one or more units corresponding to the above-mentioned functions.
  • the present application provides a communication device, comprising at least one processor, at least one processor coupled with at least one memory, at least one memory for storing computer programs or instructions, and at least one processor for calling from at least one memory And run the computer program or instruction, so that the communication device executes the method in the first aspect to the sixth aspect and any one of the possible implementation manners of the first aspect to the sixth aspect.
  • the communication device may be a terminal device.
  • a processor including: an input circuit, an output circuit, and a processing circuit.
  • the processing circuit is configured to receive a signal through the input circuit and transmit a signal through the output circuit, so that any one of the first to sixth aspects and any one of the first to sixth aspects may be implemented
  • the method in is implemented.
  • the above-mentioned processor may be a chip
  • the input circuit may be an input pin
  • the output circuit may be an output pin
  • the processing circuit may be a transistor, a gate circuit, a flip-flop, and various logic circuits.
  • the input signal received by the input circuit may be received and input by, for example, but not limited to, a receiver
  • the signal output by the output circuit may be, for example, but not limited to, output to and transmitted by a transmitter
  • the circuit can be the same circuit that acts as an input circuit and an output circuit at different times.
  • the embodiments of the present application do not limit the specific implementation manners of the processor and various circuits.
  • the present application provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the first aspect to the sixth aspect and the first aspect are made The method in any of the possible implementations to the sixth aspect is performed.
  • the present application provides a computer program product, the computer program product comprising computer program code, when the computer program code is run on a computer, the first aspect to the sixth aspect and the first aspect to The method in any of the possible implementations of the sixth aspect is performed.
  • the present application provides a chip, comprising a processor and a communication interface, the communication interface is used for receiving a signal and transmitting the signal to the processor, and the processor processes the signal to The method as in the first to sixth aspects and any one of the possible implementations of the first to sixth aspects is caused to be performed.
  • the present application provides a communication system, including the communication device as described in the eighth aspect.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method proposed by the present application.
  • FIG. 3 is a schematic flowchart of another communication method proposed by the present application.
  • FIG. 4 is a schematic block diagram of a communication apparatus 1000 provided by the present application.
  • FIG. 5 is a schematic structural diagram of the communication device 10 provided by the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS general packet radio service
  • long term evolution long term evolution
  • LTE long term evolution
  • LTE frequency division duplex frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • 5G fifth generation
  • NR new radio
  • V2X can include vehicle-to-network (V2N), vehicle-to-vehicle (vehicle-to-vehicle, V2V), vehicle to infrastructure (V2I), vehicle to pedestrian (V2P), etc.
  • long term evolution-vehicle LTE-V
  • Internet of Vehicles machine-type communication
  • FIG. 1 shows a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the communication system in this embodiment of the present application may include a network device and multiple terminal devices.
  • a network device may include one antenna or multiple antennas.
  • network equipment may additionally include transmitter chains and receiver chains, each of which may include multiple components related to signal transmission and reception (eg, processors, modulators, multiplexers, demodulator, demultiplexer, or antenna, etc.).
  • wearable devices can also be called wearable smart devices, which is a general term for the intelligent design of daily wear and the development of wearable devices using wearable technology, such as glasses, gloves, watches, clothing and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothing or accessories.
  • Wearable device is not only a hardware device, but also realizes powerful functions through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-scale, complete or partial functions without relying on smart phones, such as smart watches or smart glasses, and only focus on a certain type of application function, which needs to cooperate with other devices such as smart phones. Use, such as all kinds of smart bracelets, smart jewelry, etc. for physical sign monitoring.
  • the terminal device may also be a terminal device in the Internet of Things system.
  • IoT is an important part of the future development of information technology.
  • Machine interconnection the intelligent network of the interconnection of things and things.
  • the terminal device may also include sensors such as smart printers, train detectors, and gas stations, and the main functions include collecting data (part of terminal devices), receiving control information and downlink data of network devices, and sending electromagnetic waves. , to transmit uplink data to the network device.
  • sensors such as smart printers, train detectors, and gas stations
  • the main functions include collecting data (part of terminal devices), receiving control information and downlink data of network devices, and sending electromagnetic waves. , to transmit uplink data to the network device.
  • the network device in this embodiment of the present application may be a device for communicating with a terminal device, and the network device may be a global system for mobile communications (GSM) system or code division multiple access (CDMA)
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • the base station (base transceiver station, BTS) in the LTE system can also be the base station B (nodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station B in the LTE system.
  • evolved nodeB evolved nodeB, eNB or eNodeB
  • it can also be a wireless controller in a cloud radio access network (CRAN) scenario, or a radio network controller (RNC), base station controller (base station controller, BSC), home base station (for example, home evolved nodeB, or home nodeB, HNB), baseband unit (baseband unit, BBU), or the network device can be a relay station, an access point, an in-vehicle device, a wearable
  • the device and the network device in the future 5G network or the network device in the future evolved PLMN network, etc. can be an access point (AP), a wireless relay node, a wireless backhaul node, and a transmission point (transmission point) in the WLAN.
  • AP access point
  • AP access point
  • wireless relay node a wireless backhaul node
  • transmission point transmission point
  • Point, TP or transmission and reception point (transmission and reception point, TRP), etc.
  • TRP transmission and reception point
  • TRP or TP transmission point
  • TRP or TP transmission point
  • new radio system new radio, NR
  • a group including multiple antenna panels
  • antenna panels or, may also be a network node that constitutes a gNB or a transmission point, such as a baseband unit (BBU), or a distributed unit (distributed unit, DU), etc., this application
  • BBU baseband unit
  • DU distributed unit
  • a gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include an active antenna unit (active antenna unit, AAU for short).
  • CU implements some functions of gNB
  • DU implements some functions of gNB.
  • CU is responsible for processing non-real-time protocols and services, implementing radio resource control (RRC), and packet data convergence protocol (PDCP) layer function.
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • the DU is responsible for processing physical layer protocols and real-time services, and implementing the functions of the radio link control (RLC) layer, the media access control (MAC) layer and the physical (PHY) layer.
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • a network device provides services for a cell
  • a terminal device communicates with the cell through transmission resources (for example, frequency domain resources, or spectrum resources) allocated by the network device
  • the cell may belong to a macro base station (for example, macro eNB or macro gNB, etc.), may also belong to the base station corresponding to a small cell (small cell), where the small cell may include: urban cell (metro cell), micro cell (micro cell), pico cell (pico cell) , femto cells, etc.
  • These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the network device may include a base station (gNB), such as a macro base station, a micro base station, an indoor hotspot, and a relay node, etc., whose function is to send radio waves to the terminal device, on the one hand, to realize downlink data transmission, On the other hand, it sends scheduling information to control uplink transmission, and receives radio waves sent by terminal equipment to receive uplink data transmission.
  • gNB base station
  • the terminal device may include a base station (gNB), such as a macro base station, a micro base station, an indoor hotspot, and a relay node, etc., whose function is to send radio waves to the terminal device, on the one hand, to realize downlink data transmission, On the other hand, it sends scheduling information to control uplink transmission, and receives radio waves sent by terminal equipment to receive uplink data transmission.
  • gNB base station
  • DAPS handover (also known as 0ms handover) is essentially a soft handover: when handover occurs, the UE needs to disconnect the air interface signal with the source cell after successfully completing the random access of the target cell, including signaling connection and data; During the handover process, the UE simultaneously receives and transmits the signals of the source cell and the target cell, so that the service is not interrupted.
  • a normal hard handover is that the UE immediately disconnects the signal from the source cell when the handover occurs.
  • DAPS handover can reduce the interruption time introduced by handover, make the interruption time close to or equal to 0ms, and improve the reliability of handover, providing UE with a seamless handover communication experience.
  • SUL can improve the uplink signal coverage of the UE at the cell boundary and the throughput of the cell center. Specifically, in the center of the cell, the SUL and NR UL schedule the UE to send uplink through TDM. For example, SUL and NR UL support TDM switching of SUL 1T/NUL 1T 0us, or SUL 1T/NUL 2T 35.7us ⁇ 140us, or SUL 2T/NUL 2T 35.7us ⁇ 140us, etc.
  • SUL supports sending uplink in all time slots, and SUL can be sent in the time slot where NR UL is downlink. signal, thus bringing about a gain in improving the uplink throughput.
  • terminal equipment utilizes SUL to improve uplink coverage.
  • the uplink coverage of SUL carrier low frequency is better than that of NR UL, so using SUL carrier instead of NR UL carrier to send uplink at the cell edge can enhance uplink signal coverage.
  • the 3GPP standard currently has the following provisions. However, the following provisions do not involve the frequency band combination of SUL.
  • the cell-level configuration includes cell ID, frequency, bandwidth, physical random-access channel (PRACH), physical uplink control channel (PUCCH) public configuration, physical uplink shared channel ( physical uplink share channel, PUSCH) public configuration, etc. ;
  • PRACH physical random-access channel
  • PUCCH physical uplink control channel
  • PUSCH physical uplink shared channel
  • UE-level configuration including sounding reference signal (soundig reference sianal, SRS), PUSCH channel dedicated configuration (PUSCH dedicated configuration), PUCCH channel dedicated configuration (PUCCH dedicated configuration) and so on.
  • sounding reference signal soundig reference sianal, SRS
  • PUSCH dedicated configuration PUSCH dedicated configuration
  • PUCCH channel dedicated configuration PUCCH dedicated configuration
  • the UE receives the DAPS handover command, and if there is a CA in the original cell, the UE releases SCELL by itself.
  • the UE receives the DAPS handover command, and performs cell search, synchronization and RA in the target cell. After the RA is successful, it is allowed to modify the configuration parameters of the target cell through RRC reconfiguration signaling.
  • the UE After the target cell RA succeeds, the UE receives an air interface signaling from the target cell to notify the release of the source cell, and the UE performs the process of releasing the source cell.
  • UE capabilities include bandcombination, featureSetCombination and featureSetCombinationDAPS.
  • bandcombination refers to the frequency band combination of NR CA, NR non-CA and/or MR-DC
  • featureSetCombination refers to the function set combination supported by the UE
  • featureSetCombinationDAPS refers to the function set combination supporting DAPS. If DAPS handover is supported under the frequency band combination of CA or DC, the UE can report to the base station through bandcombination and featureSetCombinationDAPS.
  • SUL and NR UL indicate whether concurrency is supported through the UE capability, that is, whether the SRS supports concurrency with the PUCCH, PUSCH, and SRS of another carrier; otherwise, time-division switching is default.
  • Scenario 1 1 Tx on carrier 1 and 1 Tx on carrier 2 (ie 1T+1T);
  • (6) RA can be performed in SUL or NUL, and the entire RA procedure must be completed on the selected single carrier.
  • the base station can specify any carrier for random access, which can be reconfigured through PDCCH order or RRC.
  • the UE performs RA on which carrier by signal quality selection.
  • the common configuration includes the threshold rsrp-ThresholdSSB-SUL. Only when the reference signal received power (RSRP) value of the reference signal measured by the UE on the downlink carrier is less than the threshold, the UE selects the SUL carrier for access.
  • RSRP reference signal received power
  • TDM handover is reported to the base station through the UE capability, and the capability candidate values are ⁇ option1, option2, both option 1 and option 2 ⁇ .
  • Option 1 means that if the base station is configured with UL TDM, the base station cannot schedule carrier 2 in Case 1, that is, carrier 1 and carrier 2 can only perform TDM and cannot be concurrent. See Table 1.
  • Option 2 means that if the base station is configured with UL TDM, the base station can be scheduled on carrier 1 or carrier 2 alone; it can also be scheduled on carrier 1 and carrier 2 at the same time, that is, the concurrency of carrier 1 and carrier 2 is supported, see the table 2.
  • RRC specifies which carrier the switching GAP is located on.
  • the GAP can be located on the NR UL carrier or the SUL carrier, specified by uplinkTxSwitchingCarrier.
  • the base station specifies the carrier that can be dynamically switched through the uplinkTxSwitchingCarrier of the RRC, and this carrier can send up to 2T. Dynamic handover only allows a maximum of one handover in a single time slot (slot).
  • UL TDM In UL TDM, it is allowed to introduce interruption to the downlink of carrier 1 or carrier 2 in some frequency band combinations, except for some frequency band combinations. The reason is that, based on different UE radio frequency structures, such as UL and downlink (downlink, DL) coupling, etc., UL TDM handover will also introduce interruption of downlink reception.
  • this application provides a handover method under the combination of SUL frequency bands, which can reduce the time interruption introduced by handover in this scenario, and at the same time improve the success rate of handover.
  • FIG. 2 is a schematic flowchart of a communication method proposed by the present application.
  • a terminal device ie, an example of a communication device receives first information from a source cell.
  • the first information is used to indicate the carrier of the source cell
  • the carrier of the source cell includes at least one of the first auxiliary uplink SUL carrier and the first uplink carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell .
  • the first uplink carrier is the first NR UL carrier (hereinafter referred to as the first NUL carrier) as an example for description.
  • the first SUL carrier and the first NUL carrier are uplink carriers configured by the source cell for the terminal device and that can be used for communication with the source cell.
  • the first information further includes source cell information (ie, resources of the source cell).
  • source cell information ie, resources of the source cell.
  • the source cell information will be described in S203, which will not be repeated here.
  • the terminal device sends an uplink signal on a carrier indicated by the first information.
  • the terminal device when the first message in S201 only indicates one uplink carrier, the terminal device sends the uplink signal on the carrier.
  • the terminal device When the first message indicates two uplink carriers, the first SUL carrier and the first NUL carrier, the terminal device needs to select one of the two uplink carriers to send the uplink signal. It can also be understood that the terminal device is in the two uplink carriers. A carrier is selected to maintain wireless communication with the source cell.
  • the cell information of the source cell includes a cell-level (cell-specific) configuration and a UE-level (UE-specific) configuration.
  • the cell-level configuration parameters include cell ID, frequency, bandwidth, PRACH channel, PUCCH channel common configuration, PUSCH channel common configuration, etc.
  • UE-level configuration parameters include RS, PUSCH channel dedicated configuration (PUSCH Dedicated configuration), PUCCH channel dedicated configuration (PUCCH dedicated configuration), SRS is a type of RS.
  • the terminal device uses the first SUL carrier and the first NUL carrier to send the uplink signal on the carrier on which the PUCCH is configured.
  • the carrier on which the PUCCH is configured may be a carrier on which a dedicated configuration of the PUCCH channel is configured.
  • the terminal device chooses to fall back (fall back) to the first SUL carrier to send the uplink signal.
  • the terminal device may also receive configuration information from the source cell, where the configuration information is used to release one of the first SUL carrier and the first NUL carrier.
  • the configuration information may be sent before S203.
  • the terminal receives the first downlink control information (DCI) from the source cell, and the terminal device needs to parse the first DCI based on the expectations of the first SUL carrier and the first uplink carrier.
  • the NUL/SUL indicator field in the first DCI is x bits
  • the NUL/SUL indicator in the first DCI Field is y bit.
  • the source cell is configured with two carriers.
  • the terminal device still needs to parse the NUL/SUL indicator field in the DCI based on x bits. In short, it is The bits corresponding to the received first DCI need to be parsed according to the actual number of carriers configured in the source cell.
  • the terminal device when the carrier where the uplink signal is located includes a sounding reference signal (sounding reference signal, SRS), the terminal device sends the SRS to the source cell; otherwise, when the carrier where the first uplink signal is located does not include the SRS, the terminal device does not. Send SRS.
  • SRS sounding reference signal
  • the terminal device receives the DAPS handover message from the source cell.
  • the DAPS handover message includes target cell information, the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes at least one of the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier The carrier shares the cell identity of the target cell.
  • the second uplink carrier is taken as the second NR UL carrier (hereinafter referred to as the second NUL carrier for short) as an example for description.
  • the second SUL and the second NUL are uplink carriers through which the target cell configured by the source cell for the terminal device can communicate with the terminal device.
  • the cell information of the target cell includes cell-level and UE-level configurations. It should be noted that the cell-level configuration of the target cell can only be modified during handover and addition of a secondary cell (scell).
  • scell secondary cell
  • the DAPS handover message must contain the cell-level configuration; if the IDs are the same, the cell-level configuration may be missing, and the terminal device inherits the cell-level configuration of the source cell.
  • the terminal device initiates a random access procedure in a carrier indicated by the target cell information.
  • the terminal device initiates random access on the carrier.
  • the target cell information indicates two uplink carriers, the second SUL carrier and the second NUL carrier
  • the terminal device selects one of the two uplink carriers for random access (RA), and which one of the two carriers to use
  • RA random access
  • the base station selects the best based on the reference signal received power (reference signal received power, RSRP) and/or the reference signal received quality (reference signal received quality, RSRQ) measurement result report reported by the terminal device, or the sent SRS and other content Select a carrier to designate terminal equipment for random access.
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • the terminal device selects an access carrier through the RSRP threshold. Only when the RSRP measured by the terminal device is smaller than the threshold, the terminal device selects the second SUL carrier for access.
  • the terminal device always performs random access on one carrier, including an uplink carrier fed back by a hybrid automatic repeat request (HARQ) acknowledgement (Acknowledgement, ACK).
  • HARQ hybrid automatic repeat request acknowledgement
  • the random access may be of a contention or non-contention type, which is not specifically limited in this application.
  • the source cell may configure the DAPS handover command in information elements (information element IEs) such as ReconfigurationWithSync and RadioBearerConfig of RRCReconfiguration.
  • information element IEs information elements
  • the parameters of the random access (RA) of the target cell may be included in the cell-level configuration.
  • the carrier that is allowed to be reconfigured is different from the carrier of the target cell RA.
  • the carrier of the target cell includes two carriers, the second NUL and the second SUL, and the RA accesses in the second NUL, and can subsequently be modified to send uplink signals on the second SUL carrier through RRC reconfiguration.
  • the terminal device when the target cell information indicates two uplink carriers, the second SUL carrier and the second NUL carrier, after the terminal device accesses the target cell, the terminal device needs to select one of the two uplink carriers to send uplink signals.
  • the terminal device sends uplink signals on the carrier on which the PUCCH is configured in the second SUL carrier and the second NUL carrier.
  • the terminal equipment chooses to fall back to the second SUL carrier to send uplink signals.
  • the terminal device when the terminal receives the second DCI from the target cell, the terminal device needs to parse the second DCI based on the expectation of the second SUL carrier and the second uplink carrier. Specifically, if the target cell is configured with two carriers, the UL/SUL indication field in the second DCI is x bits, and if the target cell is configured with one carrier, the UL/SUL indication field in the second DCI is y bit. For example, if the target cell is configured with two carriers, even if the subsequent target cell and the UE only use one of the carriers to send uplink signals, the terminal device still needs to parse the UL/SUL indicator field in the DCI based on x bits. The actual number of carriers configured in the cell is used to parse the bits corresponding to the received second DCI.
  • the terminal device performs synchronization, cell search, RA, signal transmission and signal reception in the target cell according to the DAPS handover message in S203 and the carrier determined in S204, which will not be described in this application.
  • the method further includes: S205, the terminal device receives the second information from the target cell.
  • the second information includes configuration information of the second SUL carrier and/or the second NUL carrier (ie, an example of the third carrier).
  • the source cell and the target cell have uplink transmissions at the same time during DAPS handover.
  • the second information may not need to configure the target cell information for the terminal device.
  • the target cell can configure all or part of the required target cell information for the terminal device in the second information. This is not specifically limited.
  • the terminal device sends an uplink signal to the target cell on one carrier among all the carriers indicated by the target cell information and the second information.
  • the carrier indicated by the target cell information is the same as the carrier indicated by the second information, for example: the carrier indicated by the target cell information in S203 is the second NUL carrier and the second SUL carrier, and the carrier indicated by the second information in S205 is the same.
  • the terminal equipment uses the carrier configured with PUCCH in the second NUL carrier and the second SUL carrier to send uplink signals; or, the terminal equipment uses the second SUL carrier to send uplink signals.
  • the terminal device sends the uplink signal to the target cell by using the second SUL carrier.
  • the carrier indicated by the target cell information is different from the carrier indicated by the second information, for example: the carrier indicated by the target cell information in S203 is the second NUL carrier and the second SUL carrier, and the carrier indicated by the second information in S205 is the second NUL carrier and the second SUL carrier.
  • the carrier is the second SUL carrier. Even if the carrier that the terminal device initiates random access is the second NUL in S204, the terminal device still sends the uplink signal to the target cell on the second SUL carrier, that is, the carrier that satisfies the second information indication is given priority.
  • the method further includes: S207, the terminal device sends the first capability message to the source cell.
  • the first capability message includes indication information for indicating that the SUL scenario supports DAPS handover.
  • the first capability message includes bandcombination and feature set combination.
  • BandCombination refers to the frequency band combination of NR carrier aggregation (CA), NR non-CA and/or multi-Radio dual connectivity (MR-DC), and FeatureSetCombination refers to the combination of feature sets supported by the UE.
  • CA NR carrier aggregation
  • MR-DC multi-Radio dual connectivity
  • FeatureSetCombination refers to the combination of feature sets supported by the UE.
  • the method further includes: the terminal device receives a capability negotiation message sent from the source cell, where the capability negotiation message is used to instruct the terminal device to report the first capability message, and after that, the terminal device receives the capability negotiation message sent from the source cell.
  • the first capability message is reported to the source cell according to the capability negotiation message.
  • the frequency band combination formed by the source cell and the target cell that supports DAPS handover under the SUL is reported to the source cell through the first capability message.
  • the source cell and the target cell belong to the frequency band combination supporting SUL, and the source cell and the target cell are subsets of the frequency band combination supporting SUL.
  • the terminal device reports the combination of frequency bands that support SUL to the source cell through the first capability message.
  • the SUL frequency band combination may also include UL CA or DL CA scells.
  • the uplink of the source cell and the target cell may be time-division handover in which TDM has GAP, and the GAP time length is optional.
  • TDM has GAP
  • the GAP time length is optional.
  • the terminal equipment has 2T capability (radio frequency capability) and corresponding baseband processing resources (mainly the number of carriers of the source cell and the target cell)
  • the source cell SUL 1T + target cell SUL 1T concurrency is supported; the source cell SUL 1T + target cell NUL 1T concurrent; source cell NUL 1T + target cell NUL 1T concurrent; source cell NUL 1T + target cell SUL 1T concurrent; source cell SUL 1T + target cell SUL 1T concurrent; source cell SUL 1T + target cell SUL 1T TDM 0us TDM; source cell NUL 2T and target cell SUL 1T TDM 35.7us TDM; Source cell NUL 2T and target cell SUL 2T TDM 35.7 ⁇ 140us TDM, etc.
  • the terminal device may camp on other cells before accessing the source cell, and the other cells store the first capability message of the terminal device.
  • Other cells acquire the first capability message, and this application does not specifically limit the acquisition of the first capability message.
  • S207 is not specifically limited in this application, and S207 may also be completed before S203 (ie, before receiving the DAPS switching message).
  • the terminal device receives the third information sent by the target cell.
  • the third information is used to instruct the terminal device to release the resources of the source cell. It can be understood that the third information is used to instruct the terminal device to disconnect wireless communication with the source cell, and the DAPS handover ends.
  • This embodiment presents the basic process of implementing DAPS handover in the SUL scenario.
  • the method makes full use of the terminal equipment transmission channel and baseband processing resources, reduces the interruption time introduced by handover, and improves the data throughput and cell edge coverage.
  • the present application provides another communication method, which is different from the embodiment corresponding to FIG. 2 in that when there are multiple uplink carriers between the source cell or the target cell and the terminal equipment, the terminal equipment can compare the corresponding carriers by comparing the frequency, and do not release carriers with the same or similar frequencies, so that the channel resources of the SUL carrier can be fully utilized and the throughput of uplink data can be improved.
  • FIG. 3 is a schematic flowchart of another communication method proposed by the present application.
  • S301 and S302 are the same as the processes of S201 and S203 in FIG. 2 .
  • S201 and S203 are the same as the processes of S201 and S203 in FIG. 2 .
  • S301 and S302 are the same as the processes of S201 and S203 in FIG. 2 .
  • S201 and S203 are the same as the processes of S201 and S203 in FIG. 2 .
  • S201 and S203 are the same as the processes of S201 and S203 in FIG. 2 .
  • S301 and S302 are the same as the processes of S201 and S203 in FIG. 2 .
  • the first information includes the first SUL carrier and the first NUL carrier
  • the information of the target cell includes the second SUL carrier and the second NUL carrier
  • the first SUL carrier and the first SUL carrier have the same frequency point Or belong to the same frequency band
  • the terminal device sends the uplink signal on the first SUL carrier and the first NUL carrier, and sends the uplink signal on the second SUL carrier and the second NUL carrier.
  • a random access procedure is initiated in one of the second NUL carriers.
  • the first information includes the first SUL carrier and the first NUL carrier
  • the target cell information includes the second SUL carrier
  • the second SUL carrier and the first SUL carrier have the same frequency or belong to the same frequency band
  • the terminal device sends an uplink signal on the first SUL carrier and the first NUL carrier, and initiates a random access procedure on the second SUL carrier.
  • the terminal device sends an uplink signal on the first SUL carrier and the first NUL carrier, and initiates a random access procedure on the second NUL carrier.
  • the information of the target cell includes the second SUL carrier and the second NUL carrier
  • the first information includes the first SUL carrier
  • the second SUL carrier and the first SUL carrier have the same frequency or belong to the same frequency band.
  • the terminal device sends an uplink signal on the first SUL carrier, and initiates a random access procedure on one of the second SUL carrier and the second NUL carrier.
  • the information of the target cell includes the second SUL carrier and the second NUL carrier
  • the first information includes the first NUL carrier
  • the second NUL carrier and the first NUL carrier have the same frequency or belong to the same frequency band.
  • the terminal device sends an uplink signal on the first NUL carrier, and initiates a random access procedure on one of the second SUL carrier and the second NUL carrier.
  • S304 after the terminal device successfully randomly accesses the target cell, when the target cell information includes the second SUL carrier and the second NUL carrier, at least one carrier in the source cell and at least one carrier in the target cell belong to the same frequency.
  • the uplink signal is sent on one or two carriers of the target cell.
  • the terminal device receives the second information from the target cell.
  • the second information includes configuration information of the second SUL carrier and/or the second NUL carrier (ie, an example of the third carrier).
  • S306 When at least one carrier of the source cell and at least one carrier of the target cell belong to the same frequency point or the same frequency band, the terminal device sends an uplink signal on one or two carriers of the target cell.
  • the target cell carrier configured in the target cell and the second information includes the second SUL carrier and the second NUL carrier.
  • the terminal device accesses the target cell, at least one carrier of the source cell and at least one of the target cell
  • the uplink signal is sent on one or two carriers of the target cell.
  • the target cell and the target cell carrier configured in the second information include the second SUL carrier and the second NUL carrier
  • the first information includes the first SUL carrier and the first NUL carrier
  • the first SUL carrier is the same as the first SUL carrier.
  • the terminal device is in the first SUL carrier, the first NUL carrier, the second SUL carrier
  • the uplink signal is sent on the carrier and the second NUL carrier.
  • the target cell carrier configured in the target cell and the second information includes the second SUL carrier and the second NUL carrier
  • the first information includes the first SUL carrier
  • the frequency of the second SUL carrier and the first SUL carrier is the same.
  • the terminal device sends uplink signals on the second SUL carrier, the second NUL carrier and the first SUL carrier.
  • the target cell and the target cell carrier configured in the second information include the second SUL carrier and the second NUL carrier
  • the first information includes the first NUL carrier
  • the second NUL carrier and the first NUL carrier are different.
  • the terminal device sends the uplink signal on the second SUL carrier, the second NUL carrier and the first NUL carrier.
  • S307 to S308 are basically the same as the processes of S207 to S208 in FIG. 2 .
  • the terminal device can reduce the release of the carrier by judging whether the carrier frequency points are the same or similar, thereby improving the data throughput and the coverage of the cell edge.
  • this embodiment is specific to how the uplink carrier is determined in the SUL scenario, and another communication method is also proposed in this application, which can cover the multi-carrier scenario.
  • the method includes: a terminal device receives first information from a source cell, where the first information is used to indicate one or more carriers of the source cell; the terminal device receives a dual activation protocol stack DAPS handover message from the source cell, where the DAPS handover message includes Target cell information, the target cell information is used to indicate one or more carriers of the target cell; when a carrier of the source cell and a carrier of the target cell belong to the same frequency point or the same frequency band, the terminal device is in one or two of the source cell. An uplink signal is sent on the carrier, and a random access procedure is initiated on a carrier of the target cell.
  • the handover interruption time for uplink TDM transmission or downlink TDM reception of the source cell and the target cell has not been defined.
  • Most UEs have a limited number of uplink channel resources, such as only 2T, and low-end UEs even have only 1T. If TDM handover with GAP is not defined, the support of DAPS handover function on low-end UEs is limited.
  • this application also proposes another communication method, which supports uplink time-division transmission.
  • GAP exists in the switching between carriers, and the terminal device transmits uplink data on the carriers of the source cell and the target cell by means of time-division multiplexing, so the terminal device can not The carrier of the source cell is released, thereby improving resource utilization and system data throughput.
  • the terminal device receives first information from the source cell, where the first information is used to indicate the carrier of the source cell, and the carrier of the source cell includes at least one of the first auxiliary uplink SUL carrier and the first uplink carrier, wherein the first SUL carrier Share the cell identity of the source cell with the first uplink carrier; receive a dual activation protocol stack DAPS handover message from the source cell, the DAPS handover message includes target cell information, and the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes At least one of the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier share the cell identity of the target cell; between the carrier of the source cell and the carrier of the target cell, based on the first time interval time-division multiplexing to send uplink signals respectively.
  • the terminal device before receiving the DAPS handover message, the terminal device sends second capability information to the source cell, where the second capability information is further used to indicate the first time interval.
  • the above-mentioned embodiment of transmitting uplink data on the carrier of the source cell and the target cell by means of time division multiplexing is specific to how to use the uplink carrier in the SUL scenario.
  • the present application also proposes another communication method, which can cover multi-carrier scenarios. .
  • the method includes: receiving first information from a source cell, where the first information is used to indicate one or more carriers of the source cell; receiving a dual activation protocol stack DAPS handover message from the source cell, the DAPS The handover message includes target cell information, and the target cell information is used to indicate one or more carriers of the target cell; between the carrier of the source cell and the carrier of the target cell, the time division based on the first time interval In the multiplexing mode, the uplink signals are sent separately.
  • the terminal device before receiving the DAPS handover message, the terminal device sends second capability information to the source cell, where the second capability information is further used to indicate the first time interval.
  • FIG. 4 is a schematic block diagram of a communication apparatus 1000 provided in the present application.
  • the communication apparatus 1000 includes a receiving unit 1100 , a sending unit 1200 and a processing unit 1300 .
  • the receiving unit 1100 is configured to receive first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes the first auxiliary uplink SUL carrier and the first uplink carrier. at least one carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell; the receiving unit 1100 is further configured to receive a dual activation protocol stack DAPS handover message from the source cell, The DAPS handover message includes target cell information, and the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes at least one carrier in the second SUL carrier and the second uplink carrier, wherein, The second SUL carrier and the second uplink carrier share the cell identity of the target cell; the sending unit 1200 is configured to send an uplink signal on a carrier of the source cell, and the processing unit 1300 is configured to send an uplink signal on a carrier of the target cell Initiate a random access procedure.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; the processing unit 1300 is configured to instruct the sending unit 1200 to only configure the The uplink signal is sent on the carrier of the physical uplink control channel PUCCH, wherein the carrier on which the PUCCH is configured is the first SUL carrier or the first uplink carrier.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; the processing unit 1300 is configured to instruct the sending unit 1200 to The first SUL sends uplink data.
  • the receiving 1100 receives the first downlink control information DCI from the source cell, and parses it based on the expectations of the first SUL carrier and the first uplink carrier the first DCI.
  • the carrier of the target cell includes the second SUL carrier and the second uplink carrier; the processing unit 1300 is configured to instruct the sending unit 1200 to After arriving at the target cell, the uplink signal is only sent on the carrier configured with the physical uplink control channel PUCCH, where the carrier configured with the PUCCH is the second SUL carrier or the second uplink carrier.
  • the carrier of the target cell includes the second SUL carrier and the second uplink carrier; after accessing the target cell, the processing unit 1300 is configured to: The sending unit 1200 is instructed to send the uplink signal only on the second SUL carrier.
  • the processor is further configured to, through the transceiver: receive second downlink control information DCI from the target cell, and use the transceiver based on the second SUL carrier and the first Two uplink carriers are expected to parse the second DCI.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; before receiving the DAPS handover message, the receiving unit 1100 is further configured to Receive configuration information from the source cell, where the configuration information is used to release one of the first SUL carrier and the first uplink carrier.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; the processor is further configured to use the transceiver: the receiving unit 1100 , and is also used to receive second information from the target cell, where the second information is used to indicate the third carrier of the target cell; among all the carriers indicated by the target cell information and the second information
  • the upstream signal is sent on one carrier.
  • the sending unit 1200 before receiving the first information, is further configured to send a first capability message to the source cell, where the first capability message includes information for Indication information indicating that the SUL scene supports DAPS handover.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the sending unit 1200 is configured to send a first capability message to the source cell, where the first capability message includes indication information used to indicate that the assisted uplink SUL scenario supports DAPS handover;
  • the receiving unit 1100 is configured to receive the first capability message from the source cell. information, the first information is used to indicate the carrier of the source cell, and the carrier of the source cell includes at least one of the first auxiliary uplink SUL carrier and the first uplink carrier, wherein the first SUL carrier and The first uplink carrier shares the cell identity of the source cell;
  • the receiving unit 1100 is further configured to receive a dual activation protocol stack DAPS handover message from the source cell, where the DAPS handover message includes target cell information, and the The target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes at least one of the second SUL carrier and the second uplink carrier, wherein the second SUL carrier and the second uplink carrier share the The cell identity of the target cell.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; before receiving the DAPS handover message, the method further includes: the receiving unit 1100, further configured to receive configuration information from the source cell, where the configuration information is used to release one of the first SUL carrier and the first uplink carrier.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier; the method further includes: the sending unit 1200 is further configured to: An uplink signal is sent on a carrier of the source cell, and the processing unit 1300 is configured to initiate a random access procedure on a carrier of the target cell.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier
  • the sending an uplink signal on one carrier of the source cell includes:
  • the sending unit 1200 is further configured to send an uplink signal only on a carrier configured with a physical uplink control channel PUCCH, where the carrier configured with the PUCCH is the first SUL carrier or the first uplink carrier.
  • the carrier of the source cell includes the first SUL carrier and the first uplink carrier
  • sending an uplink signal on one carrier of the source cell includes: the sending The unit 1200 is further configured to send uplink data only on the first SUL carrier.
  • the receiving unit 1100 is further configured to receive first downlink control information DCI from the source cell, based on the first SUL carrier and the first uplink carrier expected to parse the first DCI.
  • the carrier of the target cell includes the second SUL carrier and the second uplink carrier
  • the method further includes: the The sending unit 1200 is further configured to send an uplink signal only on a carrier configured with a physical uplink control channel PUCCH, where the carrier configured with the PUCCH is the second SUL carrier or the second uplink carrier.
  • the carrier of the target cell includes the second SUL carrier and the second uplink carrier, and after accessing the target cell, the method further includes: the The sending unit 1200 is further configured to send an uplink signal only on the second SUL carrier.
  • the receiving unit 1100 is further configured to receive second downlink control information DCI from the target cell
  • the processing unit 1300 is further configured to receive the second downlink control information DCI based on the second SUL carrier and the The second DCI is parsed in anticipation of the second uplink carrier.
  • the method further includes: the receiving unit 1100 is further configured to receive second information from the target cell, the second information The information is used to indicate the third carrier of the target cell; the sending unit 1200 is further configured to send an uplink signal on one carrier among all the carriers indicated by the target cell information and the second information.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes the first auxiliary uplink SUL carrier and the first uplink carrier. At least one carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell; the receiving unit 1100 is further configured to receive a dual activation protocol stack DAPS handover from the source cell message, the DAPS handover message includes target cell information, and the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes at least one of the second SUL carrier and the second uplink carrier, Wherein, the second SUL carrier and the second uplink carrier share the cell identifier of the target cell; when at least one carrier of the source cell and at least one carrier of the target cell belong to the same frequency point or the same frequency band, the sending unit 1200 , for sending an uplink signal on one or two carriers of the source cell, and the processing unit 1300 for initiating a random access procedure
  • the signal is sent on one or two carriers of the source cell.
  • the uplink signal includes: the first information includes the first SUL carrier and the first NUL carrier, the target cell information includes the second SUL carrier, and the second SUL carrier is the same as the
  • the sending unit 1200 is further configured to send an uplink signal on the first SUL carrier and the first NUL carrier.
  • Sending an uplink signal includes: indicating the first SUL carrier and the first NUL carrier in the first information, the target cell information includes the second NUL carrier, and the second NUL carrier and the In the case that the frequency points of the first NUL carrier are the same or belong to the same frequency band, the sending unit 1200 is further configured to send an uplink signal on the first SUL carrier and the first NUL carrier.
  • the carrier of the target cell includes the second SUL carrier and the second uplink carrier, and after accessing the target cell, the method further includes: in the target cell When at least one carrier of the source cell and at least one carrier of the target cell belong to the same frequency point or the same frequency band, the uplink signal is sent on one or two carriers of the target cell.
  • on one or two carriers of the target cell Sending an uplink signal includes: including the second SUL carrier and the second NUL carrier in the information of the target cell, the first information including the first SUL carrier, and the second SUL carrier
  • the sending unit 1200 is further configured to transmit the second SUL carrier, the second NUL carrier and the first SUL carrier Send an upstream signal.
  • on one or two carriers of the target cell Sending an uplink signal includes: including the second SUL carrier and the second NUL carrier in the information of the target cell, the first information including the first NUL carrier, and the second NUL carrier
  • the sending unit 1200 is further configured to transmit on the second SUL carrier, the second NUL carrier and the first NUL carrier Send an upstream signal.
  • the receiving unit 1100 is further configured to receive the second downlink control information DCI from the target cell
  • the processing unit 1300 is further configured to be based on the second SUL carrier and the expectation of the second uplink carrier to parse the second DCI.
  • the method before receiving the first information, further includes: the sending unit 1200 is further configured to send a first capability message to the source cell, the first capability message
  • the capability message includes indication information for indicating that the SUL scenario supports DAPS handover.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first information from the source cell, where the first information is used to indicate one or more carriers of the source cell; the receiving unit 1100 is further configured to receive information from the source cell.
  • a dual activation protocol stack DAPS handover message the DAPS handover message includes target cell information, and the target cell information is used to indicate one or more carriers of the target cell; a carrier of the source cell and the target cell
  • the sending unit 1200 is configured to send an uplink signal on one or two carriers of the source cell
  • the processing unit 1300 is configured to send an uplink signal on one carrier of the target cell Initiate a random access procedure.
  • the carrier of the target cell includes multiple carriers, and after accessing the target cell, the method further includes: at least one carrier of the source cell and the target cell When at least one carrier of the cell belongs to the same frequency point or the same frequency band, the sending unit 1200 is further configured to send an uplink signal on one or two carriers of the target cell.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first information from a source cell, where the first information is used to indicate a carrier of the source cell, and the carrier of the source cell includes the first auxiliary uplink SUL carrier and the first uplink carrier. At least one carrier, wherein the first SUL carrier and the first uplink carrier share the cell identity of the source cell; the receiving unit 1100 is further configured to receive a dual activation protocol stack DAPS handover from the source cell message, the DAPS handover message includes target cell information, and the target cell information is used to indicate the carrier of the target cell, and the carrier of the target cell includes at least one of the second SUL carrier and the second uplink carrier, Wherein, the second SUL carrier and the second uplink carrier share the cell identifier of the target cell; between the carrier of the source cell and the carrier of the target cell, the sending unit 1200 uses a time division multiplexing method based on the first time interval Send the uplink signal separately.
  • the method before receiving the DAPS handover message, the method further includes: the sending unit 1200 is further configured to send second capability information to the source cell, the second capability Information is used to indicate the first time interval.
  • the method before receiving the first information, further includes: the sending unit 1200 is further configured to send a first capability message to the source cell, the first capability message
  • the capability message includes indication information for indicating that the SUL scenario supports DAPS handover.
  • each unit of the communication apparatus 1000 is further configured to perform the following steps and/or operations.
  • the receiving unit 1100 is configured to receive first information from the source cell, where the first information is used to indicate one or more carriers of the source cell; the receiving unit 1100 is further configured to receive information from the source cell. Dual activation protocol stack DAPS handover message, the DAPS handover message includes target cell information, and the target cell information is used to indicate one or more carriers of the target cell; the carrier of the source cell and the target cell Between the carriers, the sending unit sends the uplink signals respectively based on the time division multiplexing mode of the first time interval.
  • the method before receiving the DAPS handover message, the method further includes: the sending unit 1200 is further configured to send second capability information to the source cell, the second Capability information is used to indicate the first time interval.
  • the receiving unit 1100 and the sending unit 1200 in the communication apparatus 1000 may also be integrated into one transceiver unit, which has the functions of receiving and sending at the same time, which is not limited here.
  • the communication apparatus 1000 may be the terminal device in the method embodiment.
  • the receiving unit 1100 may be a receiver
  • the transmitting unit 1200 may be a transmitter.
  • the receiver and transmitter can also be integrated into a transceiver.
  • the communication apparatus 1000 may be a chip or an integrated circuit in a terminal device.
  • the receiving unit 1100 and the sending unit 1200 may be a communication interface or an interface circuit.
  • the receiving unit 1100 is an input interface or an input circuit
  • the transmitting unit 1200 is an output interface or an output circuit.
  • the processing unit 1300 may be a processing device.
  • the functions of the processing device may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the processing device may include at least one processor and at least one memory, wherein the at least one memory is used to store a computer program, the at least one processor reads and executes the computer program stored in the at least one memory, so that the communication device 1000 Perform the operations and/or processing performed by the terminal device in each method embodiment.
  • the processing means may comprise only a processor, the memory for storing the computer program being located outside the processing means.
  • the processor is connected to the memory through circuits/wires to read and execute the computer program stored in the memory.
  • the processing device may also be a chip or an integrated circuit.
  • FIG. 5 is a schematic structural diagram of a communication device 10 provided by the present application.
  • the communication device 10 includes: one or more processors 11 , one or more memories 12 and one or more communication interfaces 13 .
  • the processor 11 is used to control the communication interface 13 to send and receive signals
  • the memory 12 is used to store a computer program
  • the processor 11 is used to call and run the computer program from the memory 12, so that the execution by the terminal device in each method embodiment of the present application is performed. Processes and/or operations are performed.
  • the processor 11 may have the function of the processing unit 1300 shown in FIG. 4
  • the communication interface 13 may have the function of the transmitting unit 1100 and/or the receiving unit 1200 shown in FIG. 10 .
  • the processor 11 may be configured to perform processing or operations performed by the terminal device in each method embodiment
  • the communication interface 13 may be configured to perform the sending and/or receiving actions performed by the terminal device in each method embodiment.
  • the communication apparatus 10 may be the terminal device in the method embodiment.
  • the communication interface 13 may be a transceiver.
  • a transceiver may include a receiver and a transmitter.
  • the processor 11 may be a baseband device, and the communication interface 13 may be a radio frequency device.
  • the communication device 10 may be a chip or an integrated circuit installed in a terminal device.
  • the communication interface 13 may be an interface circuit or an input/output interface.
  • the memory and the processor in the foregoing apparatus embodiments may be physically independent units, or the memory may also be integrated with the processor, which is not limited herein.
  • the present application also provides a computer-readable storage medium, where computer instructions are stored in the computer-readable storage medium, and when the computer instructions are executed on a computer, the operations performed by the terminal device in each method embodiment of the present application are made possible. and/or processes are executed.
  • the present application also provides a computer program product.
  • the computer program product includes computer program codes or instructions.
  • the operations performed by the terminal device in each method embodiment of the present application and/or the instructions are executed. or the process is executed.
  • the present application also provides a chip including a processor.
  • the memory for storing the computer program is provided independently of the chip, and the processor is used for executing the computer program stored in the memory, so that the operations and/or processing performed by the terminal device in any one of the method embodiments are performed.
  • the chip may further include a communication interface.
  • the communication interface may be an input/output interface or an interface circuit or the like.
  • the chip may further include the memory.
  • the present application also provides a communication device (for example, can be a chip), comprising a processor and a communication interface, the communication interface is used for receiving a signal and transmitting the signal to the processor, and the processor processes The signal is used to cause the operations and/or processing performed by the terminal device in any one of the method embodiments to be performed.
  • a communication device for example, can be a chip
  • the communication interface is used for receiving a signal and transmitting the signal to the processor
  • the processor processes The signal is used to cause the operations and/or processing performed by the terminal device in any one of the method embodiments to be performed.
  • the present application also provides a communication device, comprising at least one processor, the at least one processor is coupled with at least one memory, the at least one processor is configured to execute computer programs or instructions stored in the at least one memory, The operations and/or processing performed by the terminal device in any one of the method embodiments are caused to be performed.
  • the present application also provides a terminal device including a processor, a memory and a transceiver.
  • the memory is used to store the computer program
  • the processor is used to call and run the computer program stored in the memory, and control the transceiver to send and receive signals, so that the terminal device performs the operations and/or processing performed by the terminal device in any one of the method embodiments. .
  • the processor in this embodiment of the present application may be an integrated circuit chip, which has the capability of processing signals.
  • each step of the above method embodiments may be completed by a hardware integrated logic circuit in a processor or an instruction in the form of software.
  • the processor can be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.
  • a general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
  • the steps of the methods disclosed in the embodiments of the present application may be directly embodied as executed by a hardware coding processor, or executed by a combination of hardware and software modules in the coding processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory, and the processor reads the information in the memory, and completes the steps of the above method in combination with its hardware.
  • the memory in the embodiments of the present application may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (erasable PROM, EPROM), electrically programmable Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • Volatile memory may be random access memory (RAM), which acts as an external cache.
  • RAM static random access memory
  • DRAM dynamic random access memory
  • SDRAM synchronous dynamic random access memory
  • double data rate SDRAM double data rate SDRAM
  • DDR SDRAM double data rate SDRAM
  • ESDRAM enhanced synchronous dynamic random access memory
  • SLDRAM synchronous link dynamic random access memory
  • direct rambus RAM direct rambus RAM
  • the disclosed system, apparatus and method may be implemented in other manners.
  • the apparatus embodiments described above are only illustrative.
  • the division of the units is only a logical function division. In actual implementation, there may be other division methods.
  • multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented.
  • the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and 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 in this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.
  • the functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium.
  • the technical solution of the present application can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution.
  • the computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present application.
  • the aforementioned storage medium includes: U disk, removable hard disk, ROM, RAM, magnetic disk or optical disk and other media that can store program codes.

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Abstract

本申请提供了一种通信方法和通信装置。给出了一种UE在SUL场景，即SUL所在频段组合(band combination)下的DAPS切换的流程，该方法可以充分利用终端设备接收、发送通道和基带处理资源，降低切换引入的中断时间，提高数据吞吐量和小区边缘覆盖。

Description

通信方法和通信装置 技术领域
本申请涉及通信领域，并且具体地，涉及一种通信方法和通信装置。
背景技术
双激活协议栈(dual active protocol stack，DAPS)切换(又称0ms切换)本质是一种软切换：切换发生时，用户设备(user equipment，UE)需要在成功完成目标小区的随机接入之后才断开与源小区的空口信号，包含信令连接和数据；切换过程中UE同时接收和发送源小区和目标小区的信号，实现业务不中断。普通的硬切换是切换发生时UE立即断开与源小区的信号。相比硬切换，DAPS切换能够降低切换引入的中断时间，使得中断时间接近或等于0ms，并且提高切换的可靠性，为UE提供无缝切换的通信体验。
由于现有技术仅给出了在单载波场景实现DAPS切换的方法，因此，对于在多载波场景下如何实现DAPS切换成为亟需关注的重要问题。
发明内容
本申请提供一种通信方法和通信装置，能够实现SUL场景下的DAPS切换。
第一方面，提供了一种通信方法，包括：接收来自源小区的第一信息，第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识；在源小区的一个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
上述技术方案中，在源小区或目标小区与终端设备之间存在多个上行载波的情况下，分别选择其中一个载波与源小区与目标小区进行通信，该方法可以利用终端设备接收、发送通道和基带处理资源，降低切换引入的中断时间。
结合第一方面，在第一方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波，在源小区的一个载波上发送上行信号，包括：
只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，配置了PUCCH的载波为第一SUL载波或第一上行载波。
结合第一方面，在第一方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波，在源小区的一个载波上发送上行信号，包括：只在第一SUL载波发送上行信号。
上述技术方案中，终端设备使用SUL载波与源小区进行通信，可以提高数据吞吐量和小区边缘覆盖。
结合第一方面，在第一方面的某些实现方式中，接收来自源小区的第一下行控制信息DCI，并基于第一SUL载波和第一上行载波的预期来解析第一DCI。
结合第一方面，在第一方面的某些实现方式中，目标小区的载波包括第二SUL载波和第二上行载波，在接入到目标小区后，方法还包括：只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，配置了PUCCH的载波为第二SUL载波或第二上行载波。
结合第一方面，在第一方面的某些实现方式中，目标小区的载波包括第二SUL载波和第二上行载波，在接入到目标小区后，方法还包括：只在第二SUL载波上发送上行信号。
上述技术方案中，终端设备使用SUL载波与目标小区进行通信，可以提高数据吞吐量和小区边缘覆盖。
结合第一方面，在第一方面的某些实现方式中，接收来自目标小区的第二下行控制信息DCI，并基于第二SUL载波和第二上行载波的预期来解析第二DCI。
结合第一方面，在第一方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波；在接收DAPS切换消息之前，方法还包括：接收来自源小区的配置信息，配置信息用于释放第一SUL载波和第一上行载波中的一个载波。
结合第一方面，在第一方面的某些实现方式中，接入到目标小区后，方法还包括：接收来自目标小区的第二信息，第二信息用于指示目标小区的第三载波；在目标小区信息和第二信息指示的所有载波中的一个载波上发送上行信号。
结合第一方面，在第一方面的某些实现方式中，在接收第一信息之前，方法还包括：向源小区发送第一能力消息，第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
第二方面，提供了一种通信方法，包括：向源小区发送第一能力消息，第一能力消息中包括用于指示辅助上行SUL场景支持DAPS切换的指示信息；接收来自源小区的第一信息，第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识。
上述技术方案中，终端设备通过向源基站上报UE是否支持SUL场景下的DAPS切换，从而可以利用终端设备接收、发送通道和基带处理资源，降低切换引入的中断时间。
结合第二方面，在第二方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波；在接收DAPS切换消息之前，该方法还包括：接收来自源小区的配置信息，配置信息用于释放第一SUL载波和第一上行载波中的一个载波。
结合第二方面，在第二方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波；该方法还包括：在源小区的一个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
结合第二方面，在第二方面的某些实现方式中，源小区的载波包括第一SUL载波和 第一上行载波，在源小区的一个载波上发送上行信号，包括：
只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，配置了PUCCH的载波为第一SUL载波或第一上行载波。
结合第二方面，在第二方面的某些实现方式中，源小区的载波包括第一SUL载波和第一上行载波，在源小区的一个载波上发送上行信号，包括：只在第一SUL载波发送上行信号。
上述技术方案中，终端设备使用SUL载波与源小区进行通信，可以提高数据吞吐量和小区边缘覆盖。
结合第二方面，在第二方面的某些实现方式中，接收来自源小区的第一下行控制信息DCI，并基于第一SUL载波和第一上行载波的预期来解析第一DCI。
结合第二方面，在第二方面的某些实现方式中，目标小区的载波包括第二SUL载波和第二上行载波，在接入到目标小区后，方法还包括：只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，配置了PUCCH的载波为第二SUL载波或第二上行载波。
结合第二方面，在第二方面的某些实现方式中，目标小区的载波包括第二SUL载波和第二上行载波，在接入到目标小区后，该方法还包括：只在第二SUL载波上发送上行信号。
上述技术方案中，终端设备使用SUL载波与目标小区进行通信，可以提高数据吞吐量和小区边缘覆盖。
结合第二方面，在第二方面的某些实现方式中，接收来自目标小区的第二下行控制信息DCI，并基于第二SUL载波和第二上行载波的预期来解析第二DCI。
结合第二方面，在第二方面的某些实现方式中，接入到目标小区后，方法还包括：接收来自目标小区的第二信息，第二信息用于指示目标小区的第三载波；在目标小区信息和第二信息指示的所有载波中的一个载波上发送上行信号。
第三方面，提供了一种通信方法，包括：接收来自源小区的第一信息，第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识；在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在源小区的一个或两个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
上述技术方案中，终端设备可以通过判断多个载波频点是否相同或相近，减少载波的释放，从而提高了数据的吞吐量和小区边缘的覆盖。
结合第三方面，在第三方面的某些实现方式中，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在源小区的一个或两个载波上发送上行信号，包括：在第一信息中包括第一SUL载波和第一NUL载波，目标小区信息中包括第二SUL载波，且第二SUL载波与第一SUL载波的频点相同或隶属相同频段的情况下，通信装置在第一SUL载波和第一NUL载波上发送上行信号。
结合第三方面，在第三方面的某些实现方式中，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在源小区的一个或两个载波上发送上行信号，包括：在第一信息指示第一SUL载波和第一NUL载波，目标小区信息中包括第二NUL载波，且第二NUL载波与第一NUL载波的频点相同或隶属相同频段的情况下，通信装置在第一SUL载波和第一NUL载波上发送上行信号。
结合第三方面，在第三方面的某些实现方式中，在接入到目标小区后，该方法还包括：接收来自所述目标小区的第二信息，所述第二信息用于指示所述目标小区的第三载波；在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号。
结合第三方面，在第三方面的某些实现方式中，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号，包括：在目标小区和第二信息中配置的目标小区的载波包括第二SUL载波和第二NUL载波，第一信息中包括第一SUL载波，且第二SUL载波与第一SUL载波的频点相同或隶属相同频段的情况下，通信装置在第二SUL载波、第二NUL载波和第一SUL载波上发送上行信号。
结合第三方面，在第三方面的某些实现方式中，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号，包括：在目标小区和第二信息中配置的目标小区载波包括第二SUL载波和第二NUL载波，第一信息中包括第一NUL载波，且第二NUL载波与第一NUL载波的频点相同或隶属相同频段的情况下，通信装置在第二SUL载波、第二NUL载波和第一NUL载波上发送上行信号。
结合第三方面，在第三方面的某些实现方式中，接收来自目标小区的第二下行控制信息DCI，并基于第二SUL载波和第二上行载波的预期来解析第二DCI。
结合第三方面，在第三方面的某些实现方式中，在接收第一信息之前，方法还包括：向源小区发送第一能力消息，第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
第四方面，提供了一种通信方法，包括：接收来自源小区的第一信息，第一信息用于指示源小区的一个或多个载波；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的一个或多个载波；在源小区的一个载波和目标小区的一个载波属于相同频点或相同频段时，在源小区的一个或两个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
上述技术方案中，终端设备可以通过判断多个载波频点是否相同或相近，减少载波的释放，从而提高了数据的吞吐量和小区边缘的覆盖。
结合第四方面，在第四方面的某些实现方式中，目标小区的载波包括多个载波，在接入到目标小区后，该方法还包括：在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号。
第五方面，提供了一种通信方法，包括：接收来自源小区的第一信息，第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识；接收来自源小 区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识；在源小区的载波和目标小区的载波间，基于第一时间间隔的时分复用方式分别发送上行信号。
上述技术方案中，在SUL场景下，通过实现存在GAP的TDM切换，从而也可以在只支持1个载波的低端UE上实现DAPS切换功能。
结合第五方面，在第五方面的某些实现方式中，在接收DAPS切换消息之前，方法还包括：向源小区发送第二能力信息，第二能力信息用于指示第一时间间隔。
结合第五方面，在第五方面的某些实现方式中，在接收第一信息之前，方法还包括：向源小区发送第一能力消息，第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
第六方面，提供了一种通信方法，包括：接收来自源小区的第一信息，第一信息用于指示源小区的一个或多个载波；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的一个或多个载波；在源小区的载波和目标小区的载波间，基于第一时间间隔的时分复用方式分别发送上行信号。
上述技术方案中，在多载波场景下，通过实现存在GAP的TDM切换，从而也可以在只支持1个载波的低端UE上实现DAPS切换功能。
结合第六方面，在第六方面的某些实现方式中，在接收DAPS切换消息之前，该方法还包括：向源小区发送第二能力信息，第二能力信息用于指示第一时间间隔。
第七方面，本申请提供一种通信装置，通信装置具有实现第一方面至第六方面以及第一方面至第六方面中任一种可能实现方式中的方法的功能。功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。硬件或软件包括一个或多个与上述功能相对应的单元。
第八方面，本申请提供一种通信设备，包括至少一个处理器，至少一个处理器与至少一个存储器耦合，至少一个存储器用于存储计算机程序或指令，至少一个处理器用于从至少一个存储器中调用并运行该计算机程序或指令，使得通信设备执行第一方面至第六方面以及第一方面至第六方面中任一种可能的实现方式中的方法。
在一个示例中，该通信设备可以为终端设备。
第九方面，提供了一种处理器，包括：输入电路、输出电路和处理电路。该处理电路用于通过该输入电路接收信号，并通过该输出电路发射信号，使得该第一方面至第六方面中的任一方面，以及第一方面至第六方面中任一种可能实现方式中的方法被实现。
在具体实现过程中，上述处理器可以为芯片，输入电路可以为输入管脚，输出电路可以为输出管脚，处理电路可以为晶体管、门电路、触发器和各种逻辑电路等。输入电路所接收的输入的信号可以是由例如但不限于接收器接收并输入的，输出电路所输出的信号可以是例如但不限于输出给发射器并由发射器发射的，且输入电路和输出电路可以是同一电路，该电路在不同的时刻分别用作输入电路和输出电路。本申请实施例对处理器及各种电路的具体实现方式不做限定。
第十方面，本申请提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得如第一方面至第六方面以及第一方面至第六方面中任一种可能的实现方式中的方法被执行。
第十一方面，本申请提供一种计算机程序产品，所述计算机程序产品包括计算机程序代码，当所述计算机程序代码在计算机上运行时，使得如第一方面至第六方面以及第一方面至第六方面中任一种可能的实现方式中的方法被执行。
第十二方面，本申请提供一种芯片，包括处理器和通信接口，所述通信接口用于接收信号，并将所述信号传输至所述处理器，所述处理器处理所述信号，以使得如第一方面至第六方面以及第一方面至第六方面中任一种可能的实现方式中的方法被执行。
第十三方面，本申请提供一种通信系统，包括如第八方面中所述的通信设备。
附图说明
图1是本申请实施例的应用场景的示意图。
图2是本申请提出的一种通信方法的示意性流程图。
图3是本申请提出的另一种通信方法的示意性流程图。
图4为本申请提供的通信装置1000的示意性框图。
图5为本申请提供的通信装置10的示意性结构图。
具体实施方式
下面将结合附图，对本申请中的技术方案进行描述。
本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通信(global system for mobile communications，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、LTE频分双工(frequency division duplex，FDD)系统、LTE时分双工(time division duplex，TDD)、通用移动通信系统(universal mobile telecommunication system，UMTS)、全球互联微波接入(worldwide interoperability for microwave access，WiMAX)通信系统、未来的第五代(5th generation，5G)系统或新无线(new radio，NR)，车到其它设备(vehicle-to-X V2X)，其中V2X可以包括车到互联网(vehicle to network，V2N)、车到车(vehicle to-vehicle，V2V)、车到基础设施(vehicle to infrastructure，V2I)、车到行人(vehicle to pedestrian，V2P)等、车间通信长期演进技术(long term evolution-vehicle，LTE-V)、车联网、机器类通信(machine type communication，MTC)、物联网(internet of things，IoT)、机器间通信长期演进技术(long term evolution-machine，LTE-M)，机器到机器(machine to machine，M2M)等。
图1示出了本申请实施例提供的一种网络架构的示意图。如图1所示，本申请实施例的通信系统可以包括网络设备和多个终端设备。网络设备可包括1个天线或多个天线。另外，网络设备可附加地包括发射机链和接收机链，本领域普通技术人员可以理解，它们均可包括与信号发送和接收相关的多个部件(例如处理器、调制器、复用器、解调器、解复用器或天线等)。
网络设备可以与多个终端设备通信。本申请实施例中的终端设备也可以称为：用户设备(user equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、 用户终端、终端、无线通信设备、用户代理或用户装置等。
终端设备可以是一种向用户提供语音/数据连通性的设备，例如，具有无线连接功能的手持式设备、车载设备等。目前，一些终端设备的举例为：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端、蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字助理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，5G网络中的终端设备或者未来演进的公用陆地移动通信网络(public land mobile network，PLMN)中的终端设备和/或用于在无线通信系统上通信的任意其它适合设备，本申请实施例对此并不限定。
其中，可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
此外，在本申请实施例中，终端设备还可以是物联网系统中的终端设备，IoT是未来信息技术发展的重要组成部分，其主要技术特点是将物品通过通信技术与网络连接，从而实现人机互连，物物互连的智能化网络。
此外，在本申请实施例中，终端设备还可以包括智能打印机、火车探测器、加油站等传感器，主要功能包括收集数据(部分终端设备)、接收网络设备的控制信息与下行数据，并发送电磁波，向网络设备传输上行数据。
本申请实施例中的网络设备可以是用于与终端设备通信的设备，该网络设备可以是全球移动通信(global system for mobile communications，GSM)系统或码分多址(code division multiple access，CDMA)中的基站(base transceiver station，BTS)，也可以是宽带码分多址(wideband code division multiple access，WCDMA)系统中的基站B(nodeB，NB)，还可以是LTE系统中的演进型基站B(evolved nodeB，eNB或eNodeB)，还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器，还可以是无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、家庭基站(例如，home evolved nodeB，或home nodeB，HNB)、基带单元(baseband unit，BBU)，或者该网络设备可以为中继站、接入点、车载设备、可穿戴设备以及未来5G网络中的网络设备或者未来演进的PLMN网络中的网络设备等，可以是WLAN中的接入点(access point，AP)、无线中继节点、无线回传节点、传输点(transmission point，TP)或者发送接收点(transmission and reception point，TRP)等,可以是新型无线系统(new  radio，NR)系统中的gNB或传输点(TRP或TP)，或者，5G系统中的基站的一个或一组(包括多个天线面板)天线面板，或者，还可以为构成gNB或传输点的网络节点，如基带单元(BBU)，或，分布式单元(distributed unit，DU)等，本申请实施例并不限定。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括有源天线单元(active antenna unit，简称AAU)。CU实现gNB的部分功能，DU实现gNB的部分功能，比如，CU负责处理非实时协议和服务，实现无线资源控制(radio resource control，RRC)，分组数据汇聚层协议(packet data convergence protocol，PDCP)层的功能。DU负责处理物理层协议和实时服务，实现无线链路控制(radio link control，RLC)层、媒体接入控制(media access control，MAC)层和物理(physical，PHY)层的功能。AAU实现部分物理层处理功能、射频处理及有源天线的相关功能。由于RRC层的信息最终会变成PHY层的信息，或者，由PHY层的信息转变而来，因而，在这种架构下，高层信令，如RRC层信令，也可以认为是由DU发送的，或者，由DU+AAU发送的。可以理解的是，网络设备可以为包括CU节点、DU节点、AAU节点中一项或多项的设备。此外，可以将CU划分为接入网(radio access network，RAN)中的网络设备，也可以将CU划分为核心网(core network，CN)中的网络设备，本申请对此不做限定。
另外，在本申请实施例中，网络设备为小区提供服务，终端设备通过网络设备分配的传输资源(例如，频域资源，或者说，频谱资源)与小区进行通信，该小区可以属于宏基站(例如，宏eNB或宏gNB等)，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
此外，在本申请实施例中，网络设备可以包括基站(gNB)，例如宏站、微基站、室内热点、以及中继节点等，功能是向终端设备发送无线电波，一方面实现下行数据传输，另一方面发送调度信息控制上行传输，并接收终端设备发送的无线电波，接收上行数据传输。
下面对本申请中涉及的术语做简单的介绍。
1、DAPS切换(又称0ms切换)本质是一种软切换：切换发生时，UE需要在成功完成目标小区的随机接入之后才断开与源小区的空口信号，包含信令连接和数据；切换过程中UE同时接收和发送源小区和目标小区的信号，实现业务不中断。普通的硬切换是切换发生时UE立即断开与源小区的信号。相比硬切换，DAPS切换能够降低切换引入的中断时间，使得中断时间接近或等于0ms，并且提高切换的可靠性，为UE提供无缝切换的通信体验。
2、SUL：SUL作为一段辅助的频谱，可以提高UE在小区边界的上行信号覆盖和小区中心的吞吐量。具体的，在小区中心，SUL和NR UL通过TDM方式调度UE发送上行。例如，SUL和NR UL支持SUL 1T/NUL 1T 0us、或者SUL 1T/NUL 2T 35.7us～140us、或者SUL 2T/NUL 2T 35.7us～140us等等的TDM切换。这种方式相比仅有一个NR UL上行载波的场景，因为多了一段上行载波频谱，并且NR UL为TDD制式，SUL支持在所有时隙发送上行，SUL可在NR UL为下行的时隙发送信号，因此带来提高上行吞吐量的增益。在小区边缘，终端设备利用SUL提高上行覆盖。根据仿真和经验数据，SUL载波低频(low  frequency)的上行覆盖比NR UL好，因此在小区边缘利用SUL载波代替NR UL载波发送上行，可以增强上行信号覆盖。
关于DAPS切换，3GPP标准目前有下述规定。但是下述规定不涉及SUL的频段组合。
(1)如果存在双链接(dual connectivity，DC)，那么在DAPS切换前，存在空口信令通知UE释放SCG。
(2)切换命令，可包含DAPS切换指示、小区级(cell specific)配置和UE级(UE specific)配置。其中，小区级配置，包含小区ID、频点、带宽、物理随机接入信道(physical random-access channel,PRACH)、物理上行控制信道(physical uplink control channel，PUCCH)公共配置、物理上行共享信道(physical uplink share channel，PUSCH)公共配置等。；
UE级配置，包含探测参考信号(soundig reference sianal，SRS)、PUSCH信道专用配置(PUSCH dedicated configuration)、PUCCH信道专用配置(PUCCH dedicated configuration)等。
(3)UE收到DAPS切换命令，如果原小区存在CA，那么UE自行释放SCELL。
(4)DAPS切换过程中，只存在原小区和目标小区共2个小区的上行发送和下行接收。
(5)UE收到DAPS切换命令，在目标小区执行小区搜索、同步和RA，RA成功后允许通过RRC重配信令修改目标小区的配置参数。
(6)在目标小区RA成功后，UE从目标小区收到空口信令通知释放源小区，UE执行释放源小区的处理。
(7)关于UE能力：如果支持DAPS切换，那么UE可以通过CA的频段组合能力上报基站；上报原小区和目标小区是单上行发送还是多上行发送。UE能力包括bandcombination、featureSetCombination和featureSetCombinationDAPS。其中，bandcombination指NR CA,NR non-CA和/或MR-DC的频段组合；featureSetCombination指UE所支持的功能集组合；featureSetCombinationDAPS指支持DAPS的功能集组合。如果CA或者DC的频段组合下支持DAPS切换，那么UE可以通过bandcombination和featureSetCombinationDAPS上报基站。
在3GPP R15和16，定义独立组网(standalone，SA)和非独立组网(Non-standalone，NSA)下的SUL频段组合，包括下述配置参数、UE能力和处理：
(1)SUL和NR UL通过UE能力指示是否支持并发，即SRS是否支持与另外一个载波(carrier)的PUCCH、PUSCH、SRS之间并发；否则默认时分切换。
(2)SA下SUL 1T和NR UL 1T TDM切换，切换时间0us。0us通过标准指定。
(3)NSA下如果LTE载波和SUL载波的信道带宽和频点都相同，那么SUL 1T和NR UL 1T TDM切换，切换时间0us；否则，SUL 1T和NR UL 1T TDM切换，切换时间140us。0us和140us都通过标准指定。
(4)SA SUL频段组合下的UL TDM切换，最多支持2个上行同时发送。场景包括如下所示：其中carrier 1为SUL，carrier 2为NR UL。
场景1：1 Tx on carrier 1 and 1 Tx on carrier 2(即1T+1T)；
场景2：0 Tx on carrier 1 and 2 Tx on carrier 2(即0T+2T)。
(5)只有当NUL的小区级配置存在前提下，才能有SUL小区级配置。
(6)RA可以在SUL或者NUL执行，并且必须在选定的单个载波上完成整个RA过程。
①基站可以指定执行随机接入的任意一个载波,可以通过PDCCH order或者RRC重配。
②如果基站不指定，并且小区级配置包含了两个载波，那么UE通过信号质量的选择在哪个载波执行RA。公共配置包括门限rsrp-ThresholdSSB-SUL，只有当UE在下行载波测量的参考信号的接收功率(reference signal received power，RSRP)值小于门限时，UE才选择SUL载波进行接入。
其中，关于SA SUL频段组合下的UL TDM切换，最多支持2T，具体如下：
(1)TDM切换GAP长度为{35us,140us,210us}。
(2)TDM切换通过UE能力上报基站，能力候选值有{option1,option2,both option 1 and option 2}。
可选1(option 1)指如果基站配置了UL TDM，那么基站不能在Case 1调度carrier 2，即carrier1和carrier2只能TDM，不能并发，参见表1。
表1
Figure PCTCN2020123440-appb-000001
可选2(option 2)指如果基站配置了UL TDM，那么基站可以单独在carrier 1或者carrier 2调度；也可以同时在carrier 1和carrier 2调度，即支持carrier 1和carrier 2的并发，参见表2。
表2
Figure PCTCN2020123440-appb-000002
(3)UL TDM时，RRC指定切换GAP位于哪个载波。SA SUL场景下，GAP可以位于NR UL载波或者SUL载波，通过uplinkTxSwitchingCarrier指定。
(4)基站通过RRC的uplinkTxSwitchingCarrier指定可以动态切换的载波，这个载波最多可以发送2T。动态切换在单个时隙(slot)内只允许最多切换一次。
(5)UL TDM时，允许对某些频段组合中的carrier 1或者carrier 2的下行引入interruption，但是某些频段组合除外。原因是，基于不同的UE射频结构，比如UL和下行链路(downlink，DL)存在耦合等，UL TDM切换也会引入下行接收的中断(interruption)。
(6)UL TDM时，对于SA SUL频段组合不引入额外的TDM图样(pattern)。
(7)UL TDM时，PRACH preamble的发送、UE CSI computation time、SRS、PUSCH的preparation procedure time都会引入因为切换GAP导致的处理时间放松。
由于现有标准中尚未规定UE在SUL场景下相关的DAPS切换处理。因此，本申请给出了关于SUL频段组合下的切换方法，可以减小在该场景下切换引入的时间中断，同 时提高切换的成功率。
参见图2，图2是本申请提出的一种通信方法的示意性流程图。
S201，终端设备(即通信装置的一例)接收来自源小区的第一信息。
第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识。作为示例，本实施例中以第一上行载波为第一NR UL载波(以下简称为第一NUL载波)为例进行说明。
应理解，第一SUL载波、第一NUL载波为源小区为终端设备配置的可用于与源小区进行通信的上行载波。
可选的，第一信息还包括源小区信息(即源小区的资源)。关于源小区信息会在S203进行描述，这里暂不赘述。
S202，终端设备在所述第一信息指示的一个载波上发送上行信号。
具体的，当S201中第一消息仅指示一个上行载波时，终端设备在该载波上发送上行信号。当第一消息指示第一SUL载波和第一NUL载波两个上行载波时，终端设备需要在两个上行载波中选择一个载波发送上行信号，这里也可以理解为，终端设备在两个上行载波中选择一个载波维持与源小区的无线通信。
具体的，源小区的小区信息中包含小区级(cell specific)配置和UE级(UE specific)配置。其中，小区级配置参数包括小区ID、频点、带宽、PRACH信道、PUCCH信道公共配置、PUSCH信道公共配置等；UE级配置参数包含RS、PUSCH信道专用配置(PUSCH dedicated configuration)、PUCCH信道专用配置(PUCCH dedicated configuration)，SRS为RS的一种类型。
可选的，如果配置两个上行载波，终端设备使用在第一SUL载波和第一NUL载波中配置了PUCCH的载波上发送上行信号。配置了PUCCH的载波可以是配置了PUCCH信道专用配置的载波。
可选的，终端设备选择回退(fall back)到第一SUL载波发送上行信号。
可选的，如果配置两个上行载波，终端设备还可以接收来自源小区的配置信息，该配置信息用于释放第一SUL载波和第一NUL载波中的一个载波。可选的，该配置信息可以在S203之前发送。
需要说明的是，终端接收来自源小区的第一下行链路控制信息(downlink control information，DCI)，终端设备需要基于第一SUL载波和第一上行载波的预期来解析所述第一DCI。具体来说，如果源小区配置了两个载波，则第一DCI中NUL/SUL指示(indicator)字段为x比特(bit)，如果源小区配置了一个载波，那么第一DCI中NUL/SUL指示字段为y bit。例如：源小区配置了两个载波，在S302即使后续UE在源小区和只使用其中一个载波发送上行信号，终端设备仍然需要基于x bit去解析DCI中NUL/SUL indicator字段，简单来说，就是需要根据源小区配置的实际载波数量去解析接收到的第一DCI对应的比特。
可选的，当上行信号所在的载波上包括探测参考信号(sounding reference signal，SRS)时，终端设备向源小区发送SRS；否则当第一上行信号所在的载波上不包括SRS时，终端设备不发送SRS。
S203，终端设备接收来自源小区的DAPS切换消息。
DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识。作为示例，本实施例中以第二上行载波为第二NR UL载波(以下简称为第二NUL载波)为例进行说明。
应理解，第二SUL、第二NUL为源小区为终端设备配置的目标小区与终端设备可以进行通信的上行载波。
目标小区的小区信息中包含小区级和UE级配置。需要说明的是，目标小区的小区级配置只能通过切换和辅小区(scell)添加时修改。
可选的，如果目标小区ID和源小区ID不同，那么DAPS切换消息中必须包含小区级配置；如果ID相同，那么小区级配置可以缺失，终端设备继承源小区的小区级配置。
S204，终端设备在目标小区信息指示的一个载波中发起随机接入流程。
具体的，当S203中目标小区信息仅指示一个上行载波时，终端设备在该载波上发起随机接入。当目标小区信息指示第二SUL载波和第二NUL载波两个上行载波时，终端设备在两个上行载波中选择一个载波进行随机接入(random access，RA)，使用两个载波中的哪一个载波进行随机接入本申请不做具体限定。
可选的，基站基于终端设备上报的参考信号的接收功率(reference signal received power，RSRP)和/或参考信号的接收质量(reference signal received quality，RSRQ)测量结果报告，或者发送的SRS等内容择优选定一个载波指定终端设备进行随机接入。
可选的，如果配置两个上行载波，终端设备通过RSRP门限选择一个接入的载波。只有当终端设备测量的RSRP小于门限时，终端设备才选择第二SUL载波进行接入。
应理解，终端设备始终在一个载波上进行随机接入，包括混合自动重传请求(hybrid automatic repeat request，HARQ)确认(Acknowledgement，ACK)反馈的上行载波。
可选的，随机接入可以是竞争或者非竞争类型，本申请对此不作具体限定。
可选的，源小区可以在RRCReconfiguration的ReconfigurationWithSync和RadioBearerConfig等信息元素(information element IE)配置DAPS切换命令。
可选的，目标小区随机接入(RA)的参数可以包含在小区级配置中。
可选的，允许重配的载波和目标小区RA的载波不同。例如目标小区载波包含第二NUL和第二SUL两个载波，RA在第二NUL接入，后续可以通过RRC重配修改到在第二SUL载波上发送上行信号。
可选的，当目标小区信息指示第二SUL载波和第二NUL载波两个上行载波时，在终端设备接入到目标小区后，终端设备需要在两个上行载波中选择一个载波发送上行信号。
可选的，如果配置两个上行载波，终端设备使用在第二SUL载波和第二NUL载波中配置了PUCCH的载波上发送上行信号。
可选的，如果配置两个上行载波，终端设备选择回退(fall back)到第二SUL载波发送上行信号。
需要说明的是，终端接收来自目标小区的第二DCI，终端设备需要基于第二SUL载波和第二上行载波的预期来解析第二DCI。具体来说，如果目标小区配置了两个载波，则第二DCI中UL/SUL指示字段为x比特(bit)，如果目标小区配置了一个载波，那么第 二DCI中UL/SUL指示字段为y bit。例如：目标小区配置了两个载波，即使后续目标小区和UE只使用其中一个载波发送上行信号，终端设备仍然需要基于x bit去解析DCI中UL/SUL indicator字段，简单来说，就是需要根据目标小区配置的实际载波数量去解析接收到的第二DCI对应的比特。
应理解，终端设备根据S203中的DAPS切换消息和S204中确定的载波在目标小区执行同步、小区搜索、RA、信号发送与信号接收，本申请对此不再展开描述。
可选的，在终端设备成功随机接入目标小区后，该方法还包括：S205,终端设备接收来自目标小区的第二信息。第二信息包括第二SUL载波和/或第二NUL载波的配置信息(即第三载波的一例)。
应理解，本申请中源小区和目标小区在DAPS切换时，同时有上行发送。
可选的，如果在S202中DAPS切换消息中配置了终端设备所需的目标小区信息，那么在该步骤中第二信息可以不用再给终端设备配置目标小区信息。
可选的，如果在S202中DAPS切换消息中配置了终端设备所需的部分目标小区信息，那么目标小区可以在第二信息中给终端设备配置全部或所需的部分目标小区信息，本申请对此不做具体限定。
S206，终端设备在目标小区信息和第二信息指示的所有载波中的一个载波上向目标小区发送上行信号。
可选的，如果目标小区信息指示的载波与第二信息指示的载波相同，例如：S203中目标小区信息指示的载波为第二NUL载波和第二SUL载波，而S205中第二信息指示的载波为第二NUL载波和第二SUL载波，那么终端设备使用在第二NUL载波和第二SUL载波中配置了PUCCH的载波上发送上行信号；或者，终端设备使用第二SUL载波发送上行信号。
可选的，如果目标小区信息指示的载波与第二信息指示的载波相同，例如：S203中目标小区信息指示的载波为第二SUL载波，而S205中第二信息指示的载波为第二SUL载波，则终端设备就使用第二SUL载波向目标小区发送上行信号。
可选的，如果目标小区信息指示的载波与第二信息指示的载波不相同，例如：S203中目标小区信息指示的载波为第二NUL载波和第二SUL载波，而S205中第二信息指示的载波为第二SUL载波，即使S204中终端设备发起随机接入的载波为第二NUL，则终端设备仍然在第二SUL载波向目标小区发送上行信号，即优先满足第二信息指示的载波。
可选的，在S204中终端设备接收第一信息之前，该方法还包括：S207，终端设备向源小区发送第一能力消息。第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
第一能力消息包括bandcombination和feature set combination。其中，BandCombination指NR载波聚合(carrier aggregation，CA),NR non-CA和/或多空口双链接(multi-Radio dual connectivity,MR-DC)的频段组合，FeatureSetCombination指UE所支持的功能集组合。
现有的标准定义：①CA、双链接(dual connectivity，DC)或者单载波下，BandCombination和FeatureSetCombination关联。②为DAPS新定义featureSetCombinationDAPS(FSC-DAPS)。如果UE在CA或者DC支持DAPS，那么 CA或者DC的bandcombination与FSC-DAPS关联。基站可以通过bandcombination+FSC-DAPS两个信息判断UE是否支持DAPS切换。
但是由于目前标准不支持SUL频段组合下的DAPS切换，以及SUL bandcombination最多只有一个SUL band不满足源和目标小区同时配置SUL载波且属于不同频段的场景。因此，本申请中通过将SUL bandcombination与FSC-DAPS关联，或者新增SUL bandcombination-DAPS的频段组合来判断UE是否支持DAPS切换。
可选的，终端设备在上报第一能力消息之前，该方法还包括：终端设备接收来自源小区发送的能力协商消息，该能力协商消息用于指示终端设备上报第一能力消息，之后，终端设备根据该能力协商消息向源小区上报第一能力消息。
可选的，SUL下支持DAPS切换的源小区和目标小区组成的频段组合通过第一能力消息上报源小区。源小区和目标小区隶属于支持SUL的频段组合，源小区和目标小区为支持SUL的频段组合的子集。
可选的，终端设备将支持SUL的频段组合通过第一能力消息上报源小区。SUL的频段组合除了包含DAPS切换的源小区和目标小区以外，还可能包含UL CA或者DL CA的scell。
可选的，源小区和目标小区的上行，可以是TDM有GAP的时分切换，GAP时间长度可选。例如：终端设备有2T的能力(射频能力)和相应的基带处理资源(主要是源小区和目标小区的载波个数)，那么支持源小区SUL 1T+目标小区SUL 1T并发；源小区SUL 1T+目标小区NUL 1T并发；源小区NUL 1T+目标小区NUL 1T并发；源小区NUL 1T+目标小区SUL 1T并发；源小区SUL 1T+目标小区SUL 1T TDM 0us TDM；源小区NUL 2T和目标小区SUL 1T TDM 35.7us TDM；源小区NUL 2T和目标小区SUL 2T TDM 35.7～140us TDM等。
可选的，终端设备在接入源小区之前，可能驻留在其他小区，其他小区中存储有终端设备的第一能力消息，在这种情况下，源小区也可以从终端设备之前驻留的其他小区获取第一能力消息，本申请对第一能力消息的获取不做具体限定。
应理解，本申请对S207的实现时间不做具体限定，S207也可以在S203之前(即接收DAPS切换消息之前)完成即可。
S208，终端设备接收目标小区发送的第三信息。第三信息用于指示终端设备释放源小区的资源，可以理解，第三信息用于指示终端设备断开与源小区的无线通信，DAPS切换结束。
本实施例给出了在SUL场景下实现DAPS切换的基本过程，在源小区或目标小区与终端设备之间存在多个上行载波的情况下，分别选择其中一个载波与源小区与目标小区进行通信，该方法充分利用终端设备发送通道和基带处理资源，降低切换引入的中断时间，提高数据吞吐量和小区边缘覆盖。
下面，本申请给出另一种通信方法，与图2对应实施例的不同之处在于源小区或目标小区与终端设备之间存在多个上行载波的情况下，终端设备可以通过比较对应的载波频点，不释放频点相同或相近的载波，从而可充分利用SUL载波的信道资源，提高上行数据的吞吐量。
参见图3，图3是本申请提出的另一种通信方法的示意性流程图。
S301和S302与图2中S201和S203的过程相同，具体参见S201和S203中的描述，这里不再赘述。
S303,在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在源小区的一个或两个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
可选的，在第一信息中包括第一SUL载波和第一NUL载波，目标小区的信息中包括第二SUL载波和第二NUL载波，且第一SUL载波与第一SUL载波的频点相同或隶属相同频段，第一NUL载波与第二NUL载波的频点相同或隶属相同频段的情况下，终端设备在第一SUL载波、第一NUL载波上发送上行信号，并在第二SUL载波和第二NUL载波中的一个载波中发起随机接入流程。
可选的，在第一信息中包括第一SUL载波和第一NUL载波，目标小区信息中包括第二SUL载波，且第二SUL载波与第一SUL载波的频点相同或隶属相同频段的情况下，终端设备在第一SUL载波、第一NUL载波上发送上行信号，并在第二SUL载波上发起随机接入流程。
可选的，在第一信息指示第一SUL载波和第一NUL载波，目标小区信息中包括第二NUL载波，且第二NUL载波与第一NUL载波的频点相同或隶属相同频段的情况下，终端设备在第一SUL载波、第一NUL载波上发送上行信号，并在第二NUL载波上发起随机接入流程。
可选的，在目标小区的信息中包括第二SUL载波和第二NUL载波，第一信息中包括第一SUL载波，且第二SUL载波与第一SUL载波的频点相同或隶属相同频段的情况下，终端设备在第一SUL载波上发送上行信号，并在第二SUL载波和第二NUL载波中的一个载波中发起随机接入流程。
可选的，在目标小区的信息中包括第二SUL载波和第二NUL载波，第一信息中包括第一NUL载波，且第二NUL载波与第一NUL载波的频点相同或隶属相同频段的情况下，终端设备在第一NUL载波上发送上行信号，并在第二SUL载波和第二NUL载波中的一个载波中发起随机接入流程。
可选的，S304，在终端设备成功随机接入目标小区后，当目标小区信息包括第二SUL载波和第二NUL载波时，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号。
可选的，S305，终端设备接收来自目标小区的第二信息。第二信息包括第二SUL载波和/或第二NUL载波的配置信息(即第三载波的一例)。
S306，终端设备在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号。
应理解，在目标小区和第二信息中配置的目标小区载波包括第二SUL载波和第二NUL载波，在终端设备接入到目标小区后，在源小区的至少一个载波和目标小区的至少一个载波属于相同频点或相同频段时，在目标小区的一个或两个载波上发送上行信号。
可选的，当目标小区和第二信息中配置的目标小区载波包括第二SUL载波和第二NUL载波时，第一信息中包括第一SUL载波和第一NUL载波，且第一SUL载波与第二SUL载波的频点相同或隶属相同频段，第一NUL载波与第二NUL载波的频点相同或隶 属相同频段的情况下，终端设备在第一SUL载波、第一NUL载波、第二SUL载波和第二NUL载波上发送上行信号。
可选的，在目标小区和第二信息中配置的目标小区载波包括第二SUL载波和第二NUL载波，第一信息中包括第一SUL载波，且第二SUL载波与第一SUL载波的频点相同或隶属相同频段的情况下，终端设备在第二SUL载波、第二NUL载波和第一SUL载波上发送上行信号。
可选的，当目标小区和第二信息中配置的目标小区载波包括第二SUL载波和第二NUL载波时，第一信息中包括第一NUL载波，且第二NUL载波与第一NUL载波的频点相同或隶属相同频段的情况下，终端设备在第二SUL载波、第二NUL载波和第一NUL载波上发送上行信号。
这里只是给出了可能存在的几种情形，同理，其他情形下也可以进行上述判断，这里不再对所有情况一一举例。
S307至S308与图2中的S207至S208的过程基本相同，具体参见S207至S208中的描述，这里不再赘述。
该实施例中，终端设备可以通过判载波频点是否相同或相近从而减少载波的释放，从而提高了数据的吞吐量和小区边缘的覆盖。
应理解，该实施例是具体到SUL场景下如何确定上行载波，本申请还提出另一种通信方法，可以涵盖多载波场景。
该方法包括：终端设备接收来自源小区的第一信息，第一信息用于指示源小区的一个或多个载波；终端设备接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的一个或多个载波；在源小区的一个载波和目标小区的一个载波属于相同频点或相同频段时，终端设备在源小区的一个或两个载波上发送上行信号，并在目标小区的一个载波上发起随机接入流程。
此外，现有的DAPS切换，尚未定义源小区和目标小区上行TDM发送、或者下行TDM接收的切换中断时间。大多数UE的上行通道资源个数有限，例如只有2T，低端UE甚至只有1T,如果不定义存在GAP的TDM切换，那么导致在低端UE上DAPS切换功能的支持受限。
因此，本申请还提出另一种通信方法，支持上行时分发送，载波之间的切换存在GAP，终端设备通过时分复用的方式在源小区和目标小区的载波发送上行数据，那么终端设备可以不释放源小区的载波，从而提高资源利用率以及系统数据吞吐量。
终端设备接收来自源小区的第一信息，第一信息用于指示源小区的载波，源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，第一SUL载波和第一上行载波共享源小区的小区标识；接收来自源小区的双激活协议栈DAPS切换消息，DAPS切换消息中包括目标小区信息，目标小区信息用于指示目标小区的载波，目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享目标小区的小区标识；在源小区的载波和目标小区的载波间，基于第一时间间隔的时分复用方式分别发送上行信号。
可选的，在接收DAPS切换消息之前，终端设备向源小区发送第二能力信息，第二能力信息还用于指示第一时间间隔。
应理解，上述通过时分复用的方式在源小区和目标小区的载波发送上行数据的实施例是具体到SUL场景下如何使用上行载波，本申请还提出另一种通信方法，可以涵盖多载波场景。
该方法包括：接收来自源小区的第一信息，所述第一信息用于指示所述源小区的一个或多个载波；接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的一个或多个载波；在所述源小区的载波和所述目标小区的载波间，基于第一时间间隔的时分复用方式分别发送上行信号。
可选的，在接收DAPS切换消息之前，终端设备向源小区发送第二能力信息，第二能力信息还用于指示第一时间间隔。
以上对本申请提供的通信方法进行了详细说明，下面介绍本申请提供的通信装置。
参见图4，图4为本申请提供的通信装置1000的示意性框图。如图4，通信装置1000包括接收单元1100、发送单元1200和处理单元1300。
接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享所述目标小区的小区标识；发送单元1200，在所述源小区的一个载波上发送上行信号，处理单元1300，用于在所述目标小区的一个载波上发起随机接入流程。
可选地，在一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；所述处理单元1300，用于指示所述发送单元1200，只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第一SUL载波或所述第一上行载波。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；所述处理单元1300，用于指示所述发送单元1200，只在所述第一SUL发送上行数据。
可选地，在另一个实施例中，所述接收1100，接收来自所述源小区的第一下行控制信息DCI，并基于所述第一SUL载波和所述第一上行载波的预期来解析所述第一DCI。
可选地，在另一个实施例中，所述目标小区的载波包括所述第二SUL载波和所述第二上行载波；所述处理单元1300，用于指示所述发送单元1200，在接入到所述目标小区后，只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第二SUL载波或所述第二上行载波。
可选地，在另一个实施例中，所述目标小区的载波包括所述第二SUL载波和所述第二上行载波；在接入到所述目标小区后，所述处理单元1300，用于指示所述发送单元1200，只在所述第二SUL载波上发送上行信号。
可选地，在另一个实施例中，所述处理器还用于通过所述收发器：接收来自所述目标 小区的第二下行控制信息DCI，并基于所述第二SUL载波和所述第二上行载波的预期来解析所述第二DCI。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；在接收所述DAPS切换消息之前，所述接收单元1100，还用于接收来自所述源小区的配置信息，所述配置信息用于释放所述第一SUL载波和所述第一上行载波中的一个载波。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；所述处理器还用于通过所述收发器：所述接收单元1100，还用于接收来自所述目标小区的第二信息，所述第二信息用于指示所述目标小区的第三载波；在所述目标小区信息和所述第二信息指示的所有载波中的一个载波上发送上行信号。
可选地，在另一个实施例中，在接收所述第一信息之前，所述发送单元1200，还用于向所述源小区发送第一能力消息，所述第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
发送单元1200，用于向源小区发送第一能力消息，所述第一能力消息中包括用于指示辅助上行SUL场景支持DAPS切换的指示信息；接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；所述接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享所述目标小区的小区标识。
可选地，在一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；在接收所述DAPS切换消息之前，所述方法还包括：所述接收单元1100，还用于接收来自所述源小区的配置信息，所述配置信息用于释放所述第一SUL载波和所述第一上行载波中的一个载波。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波；所述方法还包括：所述发送单元1200，还用于在所述源小区的一个载波上发送上行信号，处理单元1300，用于在所述目标小区的一个载波上发起随机接入流程。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波，所述在所述源小区的一个载波上发送上行信号，包括：所述发送单元1200，还用于只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第一SUL载波或所述第一上行载波。
可选地，在另一个实施例中，所述源小区的载波包括所述第一SUL载波和所述第一上行载波，在所述源小区的一个载波上发送上行信号，包括：所述发送单元1200，还用于只在所述第一SUL载波发送上行数据。
可选地，在另一个实施例中，所述接收单元1100，还用于接收来自所述源小区的第一下行控制信息DCI，并基于所述第一SUL载波和所述第一上行载波的预期来解析所述 第一DCI。
可选地，在另一个实施例中，所述目标小区的载波包括所述第二SUL载波和所述第二上行载波，在接入到所述目标小区后，所述方法还包括：所述发送单元1200，还用于只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第二SUL载波或所述第二上行载波。
可选地，在另一个实施例中，所述目标小区的载波包括所述第二SUL载波和所述第二上行载波，在接入到所述目标小区后，所述方法还包括：所述发送单元1200，还用于只在所述第二SUL载波上发送上行信号。
可选地，在另一个实施例中，所述接收单元1100，还用于接收来自所述目标小区的第二下行控制信息DCI，处理单元1300，还用于基于所述第二SUL载波和所述第二上行载波的预期来解析所述第二DCI。
可选地，在另一个实施例中，接入到所述目标小区后，所述方法还包括：所述接收单元1100，还用于接收来自所述目标小区的第二信息，所述第二信息用于指示所述目标小区的第三载波；所述发送单元1200，还用于在所述目标小区信息和所述第二信息指示的所有载波中的一个载波上发送上行信号。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；所述接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享所述目标小区的小区标识；在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，发送单元1200，用于在所述源小区的一个或两个载波上发送上行信号，处理单元1300，用于在所述目标小区的一个载波上发起随机接入流程。
可选地，在一个实施例中，在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，在所述源小区的一个或两个载波上发送上行信号，包括：在所述第一信息中包括所述第一SUL载波和所述第一NUL载波，所述目标小区信息中包括所述第二SUL载波，且所述第二SUL载波与所述第一SUL载波的频点相同或隶属相同频段的情况下，所述发送单元1200，还用于在所述第一SUL载波和所述第一NUL载波上发送上行信号。
可选地，在另一个实施例中，在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，在所述源小区的一个或两个载波上发送上行信号，包括：在所述第一信息指示所述第一SUL载波和所述第一NUL载波，所述目标小区信息中包括所述第二NUL载波，且所述第二NUL载波与所述第一NUL载波的频点相同或隶属相同频段的情况下，所述发送单元1200，还用于在所述第一SUL载波和所述第一NUL载波上发送上行信号。
可选地，在另一个实施例中，所述目标小区的载波包括所述第二SUL载波和所述第 二上行载波，在接入到所述目标小区后，所述方法还包括：在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，在所述目标小区的一个或两个载波上发送上行信号。
可选地，在另一个实施例中，在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，在所述目标小区的一个或两个载波上发送上行信号，包括：在所述目标小区的信息中包括所述第二SUL载波和所述第二NUL载波，所述第一信息中包括所述第一SUL载波，且所述第二SUL载波与所述第一SUL载波的频点相同或隶属相同频段的情况下，所述发送单元1200，还用于在所述第二SUL载波、所述第二NUL载波和所述第一SUL载波上发送上行信号。
可选地，在另一个实施例中，在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，在所述目标小区的一个或两个载波上发送上行信号，包括：在所述目标小区的信息中包括所述第二SUL载波和所述第二NUL载波，所述第一信息中包括所述第一NUL载波，且所述第二NUL载波与所述第一NUL载波的频点相同或隶属相同频段的情况下，所述发送单元1200，还用于在所述第二SUL载波、所述第二NUL载波和所述第一NUL载波上发送上行信号。
可选地，在另一个实施例中，所述接收单元1100，还用于接收来自所述目标小区的第二下行控制信息DCI，所述处理单1300，还用于基于所述第二SUL载波和所述第二上行载波的预期来解析所述第二DCI。
可选地，在另一个实施例中，在接收所述第一信息之前，所述方法还包括：所述发送单元1200，还用于向所述源小区发送第一能力消息，所述第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的一个或多个载波；所述接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的一个或多个载波；在所述源小区的一个载波和所述目标小区的一个载波属于相同频点或相同频段时，发送单元1200，用于在所述源小区的一个或两个载波上发送上行信号，处理单元1300，用于在所述目标小区的一个载波上发起随机接入流程。
可选地，在一个实施例中，所述目标小区的载波包括多个载波，在接入到所述目标小区后，所述方法还包括：在所述源小区的至少一个载波和所述目标小区的至少一个载波属于相同频点或相同频段时，所述发送单元1200，还用于在所述目标小区的一个或两个载波上发送上行信号。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；所述接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载 波和第二上行载波共享所述目标小区的小区标识；在所述源小区的载波和所述目标小区的载波间，发送单元1200，基于第一时间间隔的时分复用方式分别发送上行信号。
可选地，在一个实施例中，在接收所述DAPS切换消息之前，所述方法还包括：所述发送单元1200，还用于向所述源小区发送第二能力信息，所述第二能力信息用于指示所述第一时间间隔。
可选地，在另一个实施例中，在接收所述第一信息之前，所述方法还包括：所述发送单元1200，还用于向所述源小区发送第一能力消息，所述第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
在另一些方案中，通信装置1000的各单元还用于执行如下步骤和/或操作。
接收单元1100，用于接收来自源小区的第一信息，所述第一信息用于指示所述源小区的一个或多个载波；所述接收单元1100，还用于接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的一个或多个载波；在所述源小区的载波和所述目标小区的载波间，发送单元，基于第一时间间隔的时分复用方式分别发送上行信号。
可选地，在另一个实施例中，在接收所述DAPS切换消息之前，所述方法还包括：所述发送单元1200，还用于向所述源小区发送第二能力信息，所述第二能力信息用于指示所述第一时间间隔。
可选地，通信装置1000中的接收单元1100和发送单元1200也可以集成为一个收发单元，同时具备接收和发送的功能，这里不作限定。
在一种实现方式中，通信装置1000可以为方法实施例中的终端设备在这种实现方式中，接收单元1100可以为接收器，发送单元1200可以为发射器。接收器和发射器也可以集成为一个收发器。
在另一种实现方式中，通信装置1000可以为终端设备中的芯片或集成电路。在这种实现方式中，接收单元1100和发送单元1200可以为通信接口或者接口电路。例如，接收单元1100为输入接口或输入电路，发送单元1200为输出接口或输出电路。
处理单元1300可以为处理装置。其中，处理装置的功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。例如，处理装置可以包括至少一个处理器和至少一个存储器，其中，该至少一个存储器用于存储计算机程序，该至少一个处理器读取并执行该至少一个存储器中存储的计算机程序，使得通信装置1000执行各方法实施例中由终端设备执行的操作和/或处理。
可选地，处理装置可以仅包括处理器，用于存储计算机程序的存储器位于处理装置之外。处理器通过电路/电线与存储器连接，以读取并执行存储器中存储的计算机程序。可选地，在一些示例中，处理装置还可以为芯片或集成电路。
参见图5，图5为本申请提供的通信装置10的示意性结构图。如图5，通信装置10包括：一个或多个处理器11，一个或多个存储器12以及一个或多个通信接口13。处理器11用于控制通信接口13收发信号，存储器12用于存储计算机程序，处理器11用于从存储器12中调用并运行该计算机程序，以使得本申请各方法实施例中由终端设备执行的流程和/或操作被执行。
例如，处理器11可以具有图4中所示的处理单元1300的功能，通信接口13可以具 有图10中所示的发送单元1100和/或接收单元1200的功能。具体地，处理器11可以用于执行各方法实施例由终端设备内部执行的处理或操作，通信接口13用于执行各方法实施例中由终端设备执行的发送和/或接收的动作。
在一种实现方式中，通信装置10可以为方法实施例中的终端设备。在这种实现方式中，通信接口13可以为收发器。收发器可以包括接收器和发射器。可选地，处理器11可以为基带装置，通信接口13可以为射频装置。
在另一种实现中，通信装置10可以为安装在终端设备中的芯片或者集成电路。在这种实现方式中，通信接口13可以为接口电路或者输入/输出接口。
可选的，上述各装置实施例中的存储器与处理器可以是物理上相互独立的单元，或者，存储器也可以和处理器集成在一起，本文不做限定。
此外，本申请还提供一种计算机可读存储介质，所述计算机可读存储介质中存储有计算机指令，当计算机指令在计算机上运行时，使得本申请各方法实施例中由终端设备执行的操作和/或流程被执行。
此外，本申请还提供一种计算机程序产品，计算机程序产品包括计算机程序代码或指令，当计算机程序代码或指令在计算机上运行时，使得本申请各方法实施例中由终端设备执行的操作和/或流程被执行。
此外，本申请还提供一种芯片，所述芯片包括处理器。用于存储计算机程序的存储器独立于芯片而设置，处理器用于执行存储器中存储的计算机程序，以使得任意一个方法实施例中由终端设备执行的操作和/或处理被执行。
进一步地，所述芯片还可以包括通信接口。所述通信接口可以是输入/输出接口，也可以为接口电路等。进一步地，所述芯片还可以包括所述存储器。
此外，本申请还提供一种通信装置(例如，可以为芯片)，包括处理器和通信接口，所述通信接口用于接收信号并将所述信号传输至所述处理器，所述处理器处理所述信号，以使得任意一个方法实施例中由终端设备执行的操作和/或处理被执行。
此外，本申请还提供一种通信装置，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于执行所述至少一个存储器中存储的计算机程序或指令，使得任意一个方法实施例中由终端设备执行的操作和/或处理被执行。
此外，本申请还提供一种终端设备，包括处理器、存储器和收发器。其中，存储器用于存储计算机程序，处理器用于调用并运行存储器中存储的计算机程序，并控制收发器收发信号，以使终端设备执行任意一个方法实施例中由终端设备执行的操作和/或处理。
本申请实施例中的处理器可以是集成电路芯片，具有处理信号的能力。在实现过程中，上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。处理器可以是通用处理器、数字信号处理器(digital signal processor,DSP)、专用集成电路(application specific integrated circuit,ASIC)、现场可编程门阵列(field programmable gate array,FPGA)或其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。本申请实施例公开的方法的步骤可以直接体现为硬件编码处理器执行完成，或者用编码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存 储介质位于存储器，处理器读取存储器中的信息，结合其硬件完成上述方法的步骤。
本申请实施例中的存储器可以是易失性存储器或非易失性存储器，或可包括易失性和非易失性存储器两者。其中，非易失性存储器可以是只读存储器(read-only memory,ROM)、可编程只读存储器(programmable ROM,PROM)、可擦除可编程只读存储器(erasable PROM，EPROM)、电可擦除可编程只读存储器(electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(random access memory,RAM)，其用作外部高速缓存。通过示例性但不是限制性说明，许多形式的RAM可用，例如静态随机存取存储器(static RAM，SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(direct rambus RAM,DRRAM)。应注意，本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，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申请的范围。
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，上述描述的系统、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。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、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系统，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。
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。
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。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。其中，A、B以及C均可以为单数或者复数，不作限定。
所述功能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)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：U盘、移动硬盘、ROM、RAM、磁碟或者光盘等各种可以存储程序代码的介质。
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，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，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。

Claims (23)

  1. 一种通信方法，其特征在于，包括：
    接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；
    接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享所述目标小区的小区标识；
    在所述源小区的一个载波上发送上行信号，并在所述目标小区的一个载波上发起随机接入流程。
  2. 如权利要求1所述的方法，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波，所述在所述源小区的一个载波上发送上行信号，包括：
    只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第一SUL载波或所述第一上行载波。
  3. 如权利要求1所述的方法，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波，所述在所述源小区的一个载波上发送上行信号，包括：
    只在所述第一SUL载波发送上行信号。
  4. 如权利要求2或3所述的方法，其特征在于，还包括：
    接收来自所述源小区的第一下行控制信息DCI，并基于所述第一SUL载波和所述第一上行载波的预期来解析所述第一DCI。
  5. 如权利要求1至4中任一项所述的方法，其特征在于：
    所述目标小区的载波包括所述第二SUL载波和所述第二上行载波，在接入到所述目标小区后，所述方法还包括：
    只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第二SUL载波或所述第二上行载波。
  6. 如权利要求1至4中任一项所述的方法，其特征在于：
    所述目标小区的载波包括所述第二SUL载波和所述第二上行载波，在接入到所述目标小区后，所述方法还包括：
    只在所述第二SUL载波上发送上行信号。
  7. 如权利要求5或6所述的方法，其特征在于，还包括：
    接收来自所述目标小区的第二下行控制信息DCI，并基于所述第二SUL载波和所述第二上行载波的预期来解析所述第二DCI。
  8. 如权利要求1至7中任一项所述的方法，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波；
    在接收所述DAPS切换消息之前，所述方法还包括：
    接收来自所述源小区的配置信息，所述配置信息用于释放所述第一SUL载波和所述第一上行载波中的一个载波。
  9. 如权利要求1至8中任一项所述的方法，其特征在于：
    接入到所述目标小区后，所述方法还包括：
    接收来自所述目标小区的第二信息，所述第二信息用于指示所述目标小区的第三载波；
    在所述目标小区信息和所述第二信息指示的所有载波中的一个载波上发送上行信号。
  10. 如权利要求1至9中任一项所述的方法，其特征在于：
    在接收所述第一信息之前，所述方法还包括：
    向所述源小区发送第一能力消息，所述第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
  11. 一种通信装置，其特征在于，包括：
    处理器，以及与所述处理器耦合的收发器；其中，
    所述处理器用于通过所述收发器：
    接收来自源小区的第一信息，所述第一信息用于指示所述源小区的载波，所述源小区的载波包括第一辅助上行SUL载波和第一上行载波中的至少一个载波，其中，所述第一SUL载波和所述第一上行载波共享所述源小区的小区标识；
    接收来自所述源小区的双激活协议栈DAPS切换消息，所述DAPS切换消息中包括目标小区信息，所述目标小区信息用于指示所述目标小区的载波，所述目标小区的载波包括第二SUL载波和第二上行载波中的至少一个载波，其中，第二SUL载波和第二上行载波共享所述目标小区的小区标识；
    在所述源小区的一个载波上发送上行信号，并在所述目标小区的一个载波上发起随机接入流程。
  12. 如权利要求11所述的通信装置，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波；
    所述处理器用于通过所述收发器：只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第一SUL载波或所述第一上行载波。
  13. 如权利要求11所述的通信装置，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波；
    所述处理器用于通过所述收发器：只在所述第一SUL发送上行信号。
  14. 如权利要求12或13所述的通信装置，其特征在于：
    所述处理器用于通过所述收发器：接收来自所述源小区的第一下行控制信息DCI，并基于所述第一SUL载波和所述第一上行载波的预期来解析所述第一DCI。
  15. 如权利要求11至14中任一项所述的通信装置，其特征在于：
    所述目标小区的载波包括所述第二SUL载波和所述第二上行载波；
    所述处理器还用于通过所述收发器：在接入到所述目标小区后，只在配置了物理上行控制信道PUCCH的载波上发送上行信号，其中，所述配置了PUCCH的载波为所述第二SUL载波或所述第二上行载波。
  16. 如权利要求11至14中任一项所述的通信装置，其特征在于：
    所述目标小区的载波包括所述第二SUL载波和所述第二上行载波；
    所述处理器还用于通过所述收发器：
    在接入到所述目标小区后，只在所述第二SUL载波上发送上行信号。
  17. 如权利要求15或16所述的通信装置，其特征在于：
    所述处理器还用于通过所述收发器：接收来自所述目标小区的第二下行控制信息DCI，并基于所述第二SUL载波和所述第二上行载波的预期来解析所述第二DCI。
  18. 如权利要求11至17中任一项所述的通信装置，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波；
    所述处理器还用于通过所述收发器：在接收所述DAPS切换消息之前，接收来自所述源小区的配置信息，所述配置信息用于释放所述第一SUL载波和所述第一上行载波中的一个载波。
  19. 如权利要求11至18中任一项所述的通信装置，其特征在于：
    所述源小区的载波包括所述第一SUL载波和所述第一上行载波；
    所述处理器还用于通过所述收发器：
    接收来自所述目标小区的第二信息，所述第二信息用于指示所述目标小区的第三载波；
    在所述目标小区信息和所述第二信息指示的所有载波中的一个载波上发送上行信号。
  20. 如权利要求11至19中任一项所述的通信装置，其特征在于：
    所述处理器还用于通过所述收发器：
    在接收所述第一信息之前，向所述源小区发送第一能力消息，所述第一能力消息中包括用于指示SUL场景支持DAPS切换的指示信息。
  21. 一种通信装置，其特征在于，包括处理器和接口电路，其中，所述接口电路用于接收计算机程序指令并将其传输至所述处理器，所述处理器用于运行所述计算机程序指令，以实现如权利要求1-10中任一项所述的方法。
  22. 一种通信装置，其特征在于，其特征在于，包括至少一个处理器，所述至少一个处理器与至少一个存储器耦合，所述至少一个处理器用于运行所述至少一个存储器中存储的计算机程序指令，以实现如权利要求1-10中任一项所述的方法。
  23. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有计算机程序，当所述计算机程序被运行时，如权利要求1-10中任一项所述的方法被实现。
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998556A (zh) * 2009-08-11 2011-03-30 中兴通讯股份有限公司 一种用户设备向载波聚合小区切换的方法及系统
CN106454971A (zh) * 2016-12-13 2017-02-22 中国联合网络通信集团有限公司 一种小区切换的方法及装置
CN109802799A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 用于多载波通信的载波切换
US20200296639A1 (en) * 2019-03-12 2020-09-17 Samsung Electronics Co., Ltd. Method of ul access in a cell supporting supplementary uplink

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102123457B (zh) * 2010-01-11 2016-04-13 中兴通讯股份有限公司 切换方法及终端
CN102300279B (zh) * 2011-08-03 2014-03-12 北京交通大学 高速移动环境下基于载波聚合的切换方法
WO2019061367A1 (zh) * 2017-09-29 2019-04-04 华为技术有限公司 数据传输的方法、终端设备和网络设备
US10887813B2 (en) * 2017-11-15 2021-01-05 Telefonaktiebolaget Lm Ericsson (Publ) User equipment, network node and methods in a wireless communications network
KR102682712B1 (ko) * 2018-01-11 2024-07-12 에프쥐 이노베이션 컴퍼니 리미티드 보충 업링크를 이용한 업링크 캐리어 구성 및 선택
EP3609277B1 (en) * 2018-08-09 2022-12-28 Comcast Cable Communications, LLC Supplementary uplink for random access procedures

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101998556A (zh) * 2009-08-11 2011-03-30 中兴通讯股份有限公司 一种用户设备向载波聚合小区切换的方法及系统
CN106454971A (zh) * 2016-12-13 2017-02-22 中国联合网络通信集团有限公司 一种小区切换的方法及装置
CN109802799A (zh) * 2017-11-17 2019-05-24 华为技术有限公司 用于多载波通信的载波切换
US20200296639A1 (en) * 2019-03-12 2020-09-17 Samsung Electronics Co., Ltd. Method of ul access in a cell supporting supplementary uplink

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP4216633A4 *

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