WO2020187125A1 - 数据传输方法和装置 - Google Patents

数据传输方法和装置 Download PDF

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Publication number
WO2020187125A1
WO2020187125A1 PCT/CN2020/078966 CN2020078966W WO2020187125A1 WO 2020187125 A1 WO2020187125 A1 WO 2020187125A1 CN 2020078966 W CN2020078966 W CN 2020078966W WO 2020187125 A1 WO2020187125 A1 WO 2020187125A1
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WO
WIPO (PCT)
Prior art keywords
antenna panel
recently
terminal device
transmission beam
uplink
Prior art date
Application number
PCT/CN2020/078966
Other languages
English (en)
French (fr)
Inventor
管鹏
Original Assignee
华为技术有限公司
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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
Publication of WO2020187125A1 publication Critical patent/WO2020187125A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0602—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station using antenna switching
    • H04B7/0608—Antenna selection according to transmission parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection

Definitions

  • This application relates to the communication field, and in particular, to a data transmission method and device in the communication field.
  • the transmitter and receiver Each end can obtain gain through beamforming.
  • the sending end and the receiving end can send and receive signals through a predetermined beam pairing relationship.
  • the terminal device may be configured with multiple antenna panels to cover multiple different directions.
  • the beam can receive or send data through the antenna panel.
  • a terminal device uses only one antenna panel at the same time, and other antenna panels of the terminal device may be in a dormant state (also called an inactive state). It takes a certain time for an antenna panel to switch from the dormant state to the active state, for example, 2 milliseconds to 3 milliseconds.
  • a bandwidth part can be configured with multiple physical uplink control channel (PUCCH) resources.
  • PUCCH physical uplink control channel
  • Each PUCCH resource can have different transmission beams, and these different transmission beams may be caused by Different antenna panels are formed.
  • the network equipment will schedule the terminal equipment to transmit the physical uplink shared channel (PUSCH) through the downlink control information (DCI).
  • DCI downlink control information
  • a method for determining the transmission beam of the PUSCH is to use the transmission beam of the PUCCH resource with the smallest identification ID among the multiple PUCCH resources as the transmission beam of the PUSCH.
  • the transition time of the antenna panel from the dormant state to the active state is further considered, it is possible that the terminal device has not switched the antenna panel, and the scheduled resource has already arrived. That leads to the problem that the antenna panel of the terminal device is too late to switch.
  • the present application provides a data transmission method and device, which is beneficial to avoid the problems of frequent switching and too late switching of the antenna panel of the terminal equipment, thereby improving data transmission performance.
  • a data transmission method including: a terminal device determines a transmission beam of an uplink channel; the terminal device uses the transmission beam to transmit the uplink channel; wherein the transmission beam is the most recent transmission beam of the terminal device The used transmitting beam or the transmitting beam to be used recently; and/or, the antenna panel corresponding to the transmitting beam is the antenna panel that has been used recently or the antenna panel that will be used recently by the terminal device.
  • the antenna panel that the terminal device has recently used or the antenna panel that will be used recently is used as the antenna panel corresponding to the transmission beam of the terminal device to transmit the uplink channel, which is beneficial to avoid the antenna panel of the terminal device. Frequent handover and too late to handover issues, which in turn improves data transmission performance.
  • the transmit beam may be the transmit beam that the terminal device has recently used, then the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device has recently used, and the transmit beam is the transmit beam that the terminal device will use recently, then the transmit beam
  • the corresponding antenna panel is the antenna panel that the terminal device will use recently. But the reverse is not necessarily true.
  • the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device has recently used, but the antenna panel can form multiple beams, and the transmit beam of the uplink channel is not necessarily the one that the terminal device has recently used. .
  • the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device will use recently, but the antenna panel can form multiple beams, and the transmit beam of the uplink channel is not necessarily the one that the terminal device will use recently.
  • the antenna panel corresponding to the transmitting beam is the antenna panel that the terminal device has used recently or the antenna panel that will be used recently. It can also be understood that the transmitting beam corresponds to the antenna panel that the terminal device has recently used. The beam or the beam corresponding to the antenna panel that will be used recently.
  • the beam corresponding to the antenna panel can be one beam or multiple beams (ie a collection of beams), and the one or more beams can be configured by the network device for the terminal device through the beam indication, or it can be the terminal
  • the device autonomously determines, for example, the terminal device can record the beam used by the antenna panel for receiving and/or sending, or the terminal device can determine the beam corresponding to the antenna panel by itself and report it to the network device. Since an antenna panel can be used for receiving and/or sending multiple beams, the "beam corresponding to the antenna panel" ultimately used by the terminal device can be any one of the multiple beams, or the multiple beams.
  • the beam with the highest signal quality among the beams may also adopt the method in the subsequent embodiments of the present application, that is, selecting the transmission beam corresponding to the PUCCH resource with the smallest identification ID among the multiple beams, which is not limited in the embodiment of the present application.
  • the foregoing uplink channel may also be referred to as the first uplink channel herein, and the first uplink channel is used for description in the following.
  • the first uplink channel may be an uplink data channel, such as PUSCH, or an uplink control channel, such as PUCCH.
  • the foregoing transmission beams may also be referred to as "default transmission beams", “transmission beams”, “default transmission beams”, etc., and the names thereof are not limited in this application.
  • the transmission time unit described in the embodiment of the present application refers to a time unit in which data or signals have been transmitted (including sent and/or received), or a time unit in which data or signals will be transmitted.
  • the aforementioned "recently used" beam or antenna panel refers to the beam or antenna panel corresponding to the last transmission time unit (for example, the last time slot for transmitting data or signals) before the terminal device sends the first uplink channel.
  • the time unit corresponding to the "recently used" beam or antenna panel is the time unit that has transmitted data or signals before the time unit of the first uplink channel is sent, and has the smallest time interval from the time unit of the first uplink channel.
  • Time unit; the above-mentioned “recently to be used” beam or antenna panel means the beam or corresponding to the first transmission time unit (for example, the first time slot for transmitting data or signals) after the terminal device sends the first uplink channel
  • Antenna panel in other words, the time unit corresponding to the beam or antenna panel "to be used recently" is after the time unit of transmitting the first uplink channel, the data or signal to be transmitted, and the time unit corresponding to the time unit of transmitting the first uplink channel The unit of time with the smallest time interval.
  • the beam or antenna panel "to be used recently" is configured by network equipment for terminal equipment through signaling.
  • the method further includes: the terminal device determines that the transmission time unit corresponding to the most recently used transmit beam or antenna panel and transmits the first uplink The first time interval between time units of the channel, and the second time interval between the transmission time unit corresponding to the transmission beam or antenna panel to be used recently and the time unit for transmitting the first uplink channel; The terminal device uses the transmission beam or the antenna panel corresponding to the smaller one of the first time interval and the second time interval as the transmission beam or the antenna panel corresponding to the transmission beam.
  • the terminal device can choose from the recently used transmit beam or antenna panel and the transmit beam or antenna panel that will be used recently according to specific conditions, so that the terminal device uses an active antenna panel as much as possible, thereby avoiding the terminal The frequent switching of the antenna panel of the equipment and the problem of too late to switch.
  • the time interval between the time slot corresponding to the “recently used” and the current time when PUSCH is sent cannot be too large, otherwise the antenna panel may have been closed In the inactive state, if you want to transmit PUSCH again, you need to activate the closed antenna panel, which takes a certain amount of time. In the same way, the time interval between the time slot corresponding to the above "will be used recently" and the current time when PUSCH is sent cannot be too large, otherwise the antenna panel may not be activated yet. To transmit PUSCH, it needs to be in an inactive state. The antenna panel is activated in advance and it takes a certain amount of time. The maximum value of the foregoing time interval may be agreed upon by a protocol, or configured by a network device through signaling.
  • the transmission beam is a physical uplink control channel PUCCH resource recently used by the terminal device or a transmission beam corresponding to a PUCCH resource to be used recently.
  • the transmission beam may be a transmission beam corresponding to a PUCCH resource recently used by the terminal device, or the transmission beam may be a transmission beam corresponding to a PUCCH resource that the terminal device will use recently.
  • the PUCCH resource is configured by the network device for the terminal device through signaling.
  • the transmission beam is the multiple The transmission beam corresponding to the PUCCH resource with the smallest ID among the PUCCH resources.
  • the foregoing transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest or largest ID among the multiple PUCCH resources.
  • the PUCCH resource recently used by the terminal device or the PUCCH resource to be used recently includes PUCCH resource 1, PUCCH resource 2, and PUCCH resource 3. Then the terminal device can determine that the transmission beam of the first uplink channel is the transmission corresponding to PUCCH resource 1. Beam, or, the terminal device may determine that the transmission beam of the first uplink channel is the transmission beam corresponding to PUCCH resource 3.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the above-mentioned minimum ID is only a rule set by the network device and the terminal device to determine the transmission beam in a default manner, and the terminal device may also refer to the PUCCH resource with the largest ID or the specified ID, which is not limited in this embodiment of the application.
  • the method further includes: the terminal device determines whether the uplink antenna panel that the terminal device has recently used is in an active state; if the terminal device has recently used it If the previously used uplink antenna panel is in the active state, the terminal device determines that the antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device has recently used; or, if the terminal device has recently used the uplink antenna panel In an inactive state, the terminal device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device has recently used.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the terminal device has recently used; or, if the terminal device has recently used it If the previously used uplink antenna panel is in an inactive state, the transmit beam is a beam corresponding to the downlink antenna panel that the terminal device has recently used.
  • the uplink antenna panel described herein refers to the antenna panel used for uplink transmission
  • the downlink antenna panel refers to the antenna panel used for downlink transmission.
  • the terminal device can determine the recently used uplink antenna when it is determined to refer to the recently used antenna panel Whether the panel is active. If the recently used uplink antenna panel is in the active state, the terminal device can use the recently used uplink antenna panel. If the recently used uplink antenna panel is in an inactive state, the terminal device can use the recently used downlink antenna panel. Further, the terminal device can select a recently used downlink antenna panel among the downlink antenna panels in the active state.
  • the method further includes: the terminal device determines the time unit of the last uplink transmission of the terminal device and the terminal device transmits the first uplink channel The third time interval between the time units of the terminal device; the fourth time interval between the time unit that the terminal device determines the last downlink reception of the terminal device and the time unit that the terminal device sends the first uplink channel; The terminal device determines the antenna panel corresponding to the smaller time interval of the third time interval and the fourth time interval as the antenna panel corresponding to the transmission beam.
  • the terminal device can select from the recently used uplink antenna panel and the recently used downlink antenna panel according to the specific situation, so that the terminal device uses the antenna panel in the active state as much as possible, thereby avoiding the antenna panel of the terminal device The problem of frequent switching and too late to switch.
  • the method further includes: the terminal device determines whether the uplink antenna panel that the terminal device will use recently is in an active state; if the terminal device will recently If the used uplink antenna panel is in the active state, the terminal device determines that the antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device will use recently; or, if the terminal device will use the uplink antenna panel recently In an inactive state, the terminal device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device will use recently.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the terminal device will use recently; or, if the terminal device will If the used uplink antenna panel is in an inactive state, the transmission beam is the beam corresponding to the downlink antenna panel that the terminal device will use recently.
  • the method further includes: the terminal device determines the time unit at which the terminal device will transmit the first uplink channel and the terminal device transmits the first uplink channel.
  • the terminal device determines the antenna panel corresponding to the smaller time interval of the fifth time interval and the sixth time interval as the antenna panel corresponding to the transmission beam.
  • the terminal device can choose from the uplink antenna panel that will be used recently and the downlink antenna panel that will be used recently according to the specific situation, so that the terminal device uses the antenna panel in the active state as much as possible, thereby avoiding the antenna panel of the terminal device.
  • the terminal device may also select a minimum time interval from the foregoing third time interval, fourth time interval, fifth time interval, and sixth time interval, and determine the antenna panel corresponding to the smallest time interval as the The antenna panel corresponding to the transmitting beam.
  • the method further includes: the terminal device sends capability information to the network device, where the capability information is used to indicate that the uplink antenna panel of the terminal device can maintain The duration of the activation state.
  • the above-mentioned terminal device may send to the network device capability information indicating the keep-alive duration of the terminal device’s uplink antenna panel, and the network device may determine whether the terminal device’s uplink antenna panel is in an active state according to the capability information, so that the network The state of the antenna panel is synchronized between the device and the terminal device.
  • the method further includes: the terminal device receives first configuration information from a network device, where the first configuration information is used to indicate that the terminal device is required The length of time that the uplink antenna panel of the terminal device remains active; the terminal device judging whether the uplink antenna panel that the terminal device has recently used is in the active state, including: the terminal device determines the terminal device according to the first configuration information Whether the recently used uplink antenna panel is active.
  • the foregoing network device may send to the terminal device the first configuration information used to indicate the keep-alive duration of the uplink antenna panel of the terminal device required.
  • the first configuration information requires the terminal device to maintain the uplink antenna panel for the duration indicated by the first configuration information after the uplink antenna panel is activated.
  • the terminal device can determine whether the uplink antenna panel of the terminal device is in an active state according to the first configuration information, so that the network device and the terminal device can synchronize the transmission of the antenna panel state.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the terminal device receives control information from the network device, so The control information is used to schedule the first uplink channel, and the control information does not include information used to indicate the transmission beam of the first uplink channel and the antenna corresponding to the transmission beam of the first uplink channel Panel information.
  • the foregoing first uplink channel is scheduled by the network device through control information, for example, the network device schedules PUSCH transmission through DCI. Therefore, in the embodiment of the present application, the control information does not include information indicating the transmission beam of the first uplink channel and information indicating the antenna panel corresponding to the transmission beam of the first uplink channel. That is, the embodiment of the application does not explicitly indicate the transmission beam of the first uplink channel, but adopts an implicit determination method, so that the network equipment and terminal equipment use the default transceiver beam pair to transmit on the first uplink channel, which avoids the terminal Frequent switching of the antenna panel of the device.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the terminal device receives control information from the network device, so The control information is used to schedule the first uplink channel, the control information includes information used to indicate the antenna panel corresponding to the transmit beam of the first uplink channel, and the control information does not include information used to indicate the first uplink channel. Information about the transmit beam of an uplink channel.
  • the terminal device may use the antenna panel indicated by the control information to transmit the first uplink channel.
  • the transmit beam of the first uplink channel can refer to the PUCCH resource with the smallest ID among the multiple PUCCH resources, that is, the transmit beam of the first uplink channel It is the transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the terminal device receives second configuration information from the network device The second configuration information is used to configure the resources of the second uplink channel, and the resources include time domain resources, frequency domain resources, the transmission beam of the second uplink channel, and the transmission beam corresponding to the second uplink channel. At least one of the antenna panels; the terminal device determining the transmit beam of the first uplink channel includes: the terminal device determines the transmit beam of the first uplink channel according to the second configuration information.
  • the network device may send second configuration information to the terminal device to configure the resource of the second uplink channel
  • the second uplink channel may be an uplink control channel, such as a PUCCH.
  • the resources of the second uplink channel may include at least one of time domain resources, frequency domain resources, transmission beams, and antenna panels (also referred to as transmission antenna panels) corresponding to the transmission beams of the second uplink channel.
  • the network device may configure one PUCCH resource or multiple PUCCH resources for the terminal device through a piece of second configuration information, and may also configure multiple PUCCH resources for the terminal device through multiple pieces of second configuration information.
  • Each second configuration information in the second configuration information configures a PUCCH resource for the terminal device, which is not limited in the embodiment of the present application.
  • a data transmission method including: a network device determines a transmission beam of a first uplink channel; the network device uses a reception beam corresponding to the transmission beam to receive the first uplink channel; wherein, the The transmission beam is a transmission beam that the terminal device has recently used or a transmission beam to be used recently; and/or, the antenna panel corresponding to the transmission beam is an antenna panel that the terminal device has recently used or an antenna panel to be used recently.
  • the method further includes: the network device determines that the transmission time unit corresponding to the most recently used transmit beam or antenna panel and transmits the first uplink The first time interval between time units of the channel, and the second time interval between the transmission time unit corresponding to the transmission beam or antenna panel to be used recently and the time unit for transmitting the first uplink channel; The network device uses the transmission beam or the antenna panel corresponding to the smaller time interval of the first time interval and the second time interval as the transmission beam or the antenna panel corresponding to the transmission beam.
  • the transmission beam is a physical uplink control channel PUCCH resource recently used by the terminal device or a transmission beam corresponding to a PUCCH resource to be used recently.
  • the transmission beam is the multiple The transmission beam corresponding to the PUCCH resource with the smallest ID among the PUCCH resources.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the method further includes: the network device determines whether the uplink antenna panel that the terminal device has recently used is in an active state; if the terminal device has been recently used The previously used uplink antenna panel is in the active state, and the network device determines that the antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device has recently used; or, if the uplink antenna panel that the terminal device has recently used is in In an inactive state, the network device determines that the antenna panel corresponding to the transmitting beam is a downlink antenna panel that the terminal device has recently used.
  • the method further includes: the network device determines the time unit of the last uplink transmission of the terminal device and the terminal device transmits the first uplink channel The third time interval between the time units of the; the network device determines the fourth time interval between the time unit of the last downlink reception of the terminal device and the time unit of the terminal device sending the first uplink channel; The network device determines the antenna panel corresponding to the smaller time interval of the third time interval and the fourth time interval as the antenna panel corresponding to the transmitting beam.
  • the method further includes: the network device determines whether the uplink antenna panel that the terminal device will use recently is in an active state; if the terminal device will recently If the used uplink antenna panel is in the active state, the network device determines that the antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device will use recently; or, if the terminal device will use the uplink antenna panel recently In an inactive state, the network device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device will use recently.
  • the method further includes: the network device determines the time unit at which the terminal device will transmit the first uplink channel with the terminal device recently. The fifth time interval between the time units of the network device; the sixth time interval between the time unit that the terminal device will recently receive by the terminal device and the time unit that the terminal device sends the first uplink channel; The network device determines the antenna panel corresponding to the smaller time interval of the fifth time interval and the sixth time interval as the antenna panel corresponding to the transmitting beam.
  • the method further includes: the network device receives capability information from the terminal device, where the capability information is used to indicate the uplink antenna of the terminal device The length of time that the panel can remain active; the network device judging whether the recently used uplink antenna panel is in the active state includes: the network device judging whether the recently used uplink antenna panel is Is active.
  • the method further includes: the network device sends first configuration information to the terminal device, where the first configuration information is used to indicate that the terminal is required The length of time the device's upstream antenna panel remains active.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the network device sends control information to the terminal device, and the The control information is used to schedule the first uplink channel, and the control information does not include information used to indicate the transmission beam of the first uplink channel.
  • the method before the network device determines the transmission beam of the first uplink channel, the method further includes: the network device sends the second configuration to the terminal device Information, the second configuration information is used to configure the resources of the second uplink channel, the resources including time domain resources, frequency domain resources, the transmission beam of the second uplink channel, and the corresponding transmission beam of the second uplink channel At least one of the antenna panels.
  • a data transmission method including: a terminal device determines a transmission beam of a first uplink channel; the terminal device uses the transmission beam to transmit the first uplink channel; wherein the transmission beam is The transmission beam corresponding to the physical uplink control channel PUCCH resource recently used by the terminal device.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among the PUCCH resources.
  • a data transmission method including: a network device determines a transmission beam of a first uplink channel; the network device uses a reception beam corresponding to the transmission beam to receive the first uplink channel; wherein, the The transmission beam is the transmission beam corresponding to the physical uplink control channel PUCCH resource that the terminal device has recently used.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among the PUCCH resources.
  • another data transmission method including: a terminal device determines a transmission beam of a first uplink channel; the terminal device uses the transmission beam to transmit the first uplink channel; wherein the transmission beam corresponds to The antenna panel of is the antenna panel recently used by the terminal device.
  • the antenna panel corresponding to the transmit beam is an antenna panel that has been used recently among antenna panels that use PUCCH resources.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among multiple PUCCH resources configured with an antenna panel that has been used recently among antenna panels that use PUCCH resources.
  • the antenna panel corresponding to the transmitting beam is an antenna panel that has been used recently among antenna panels that use the first resource.
  • the transmission beam is a transmission beam corresponding to the first resource with the smallest ID among multiple first resources configured with antenna panels that have been used recently among the antenna panels that use the first resource.
  • the first resource may be PUSCH resource, SRS resource, CSI-RS resource, PDSCH resource, or PDCCH resource.
  • the antenna panel corresponding to the transmitting beam is the antenna panel 1 that is most recently used among the antenna panels for transmitting PUSCH.
  • the transmission beam is the transmission beam of the PUSCH resource with the smallest port number of the PUSCH demodulation reference signal (DMRS) among the multiple PUSCH resources configured with the antenna panel 1.
  • DMRS PUSCH demodulation reference signal
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 2 among the antenna panels for transmitting SRS.
  • the transmission beam is a transmission beam that identifies the smallest SRS resource among the multiple SRS resources configured with the antenna panel 2.
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 3 among the antenna panels for receiving CSI-RS.
  • the transmission beam is a transmission beam corresponding to the reception beam with the smallest CSI-RS resource among the multiple CSI-RS resources configured with the antenna panel 3.
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 4 among the antenna panels for receiving PDCCH.
  • the transmitting beam is the transmitting beam corresponding to the receiving beam that identifies the smallest PDCCH resource among the multiple PDCCH resources configured with the antenna panel 4, for example, the control resource set (CORESET) identifies the smallest CORESET
  • the receive beam corresponds to the transmit beam.
  • the antenna panel corresponding to the transmitting beam is the antenna panel 5 that is most recently used among the antenna panels for receiving PDSCH.
  • the transmission beam is the transmission beam corresponding to the reception beam of the smallest PDSCH resource among the multiple PDSCH resources configured with the antenna panel 5, for example, the transmission corresponding to the reception beam of the PDSCH resource with the smallest PDSCH DMRS port number Beam.
  • another data transmission method including: a network device determines a transmission beam of a first uplink channel; the network device receives the first uplink channel by using a reception beam corresponding to the transmission beam; wherein The antenna panel corresponding to the transmitting beam is the antenna panel recently used by the terminal device.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest identifier ID among the PUCCH resources configured with the recently used antenna panel.
  • the transmit beam corresponds to the resource with the smallest identifier among PUSCH, SRS, CSI-RS, PDSCH, or PDCCH configured with the recently used antenna panel Send beam.
  • a data transmission device which is used to execute the method in any possible implementation manner of the foregoing aspects.
  • the device includes a unit for executing the method in any possible implementation manner of the foregoing aspects.
  • a data transmission device including a processor, which is coupled to a memory and can be used to execute instructions in the memory to implement a method in any one of the possible implementation manners of the foregoing aspects.
  • the communication device further includes a memory.
  • the communication device further includes a communication interface, and the processor is coupled with the communication interface.
  • the data transmission device is a terminal device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the data transmission device is a chip configured in a terminal device.
  • the communication interface may be an input/output interface.
  • the data transmission device is a network device.
  • the communication interface may be a transceiver, or an input/output interface.
  • the data transmission device is a chip configured in a network device.
  • the communication interface may be an input/output interface.
  • the transceiver may be a transceiver circuit.
  • the input/output interface may be an input/output circuit.
  • 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 the processor executes the method in any one of the possible implementation manners of the foregoing aspects.
  • the foregoing 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 the transmitter
  • the circuit can be the same circuit, which is used 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.
  • a processing device including a processor and a memory.
  • the processor is used to read instructions stored in the memory, and can receive signals through a receiver, and transmit signals through a transmitter, so as to execute the method in any one of the possible implementation manners of the foregoing aspects.
  • processors there are one or more processors and one or more memories.
  • the memory may be integrated with the processor, or the memory and the processor may be provided separately.
  • the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.
  • ROM read only memory
  • sending instruction information may be a process of outputting instruction information from the processor
  • receiving capability information may be a process of the processor receiving input capability information.
  • the processed output data may be output to the transmitter, and the input data received by the processor may come from the receiver.
  • the transmitter and receiver can be collectively referred to as a transceiver.
  • the processing device in the above tenth aspect may be a chip, and the processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, etc.; when implemented by software
  • the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory.
  • the memory may be integrated in the processor, may be located outside the processor, and exist independently.
  • a computer program product includes: a computer program (also called code, or instruction), which when the computer program is run, causes a computer to execute any of the above aspects.
  • a computer program also called code, or instruction
  • a computer-readable medium stores a computer program (also called code, or instruction) when it runs on a computer, so that the computer executes any of the above aspects.
  • a computer program also called code, or instruction
  • a communication system including the aforementioned network equipment and terminal equipment.
  • Fig. 1 shows a schematic diagram of a communication system according to an embodiment of the present application.
  • Fig. 2 shows a schematic flowchart of a data transmission method according to an embodiment of the present application.
  • Fig. 3 shows a schematic diagram of an antenna panel according to an embodiment of the present application.
  • Fig. 4 shows a schematic block diagram of a data transmission device according to an embodiment of the present application.
  • FIG. 5 shows a schematic block diagram of another data transmission device according to an embodiment of the present application.
  • GSM global system for mobile communications
  • CDMA code division multiple access
  • WCDMA broadband code division multiple access
  • GPRS general packet radio service
  • LTE long term evolution
  • FDD frequency division duplex
  • TDD LTE Time division duplex
  • UMTS universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • SCMA sparse code multiple access
  • OFDM orthogonal Frequency division multiplexing
  • FBMC filter bank multi-carrier
  • GFDM generalized frequency division multiplexing
  • filtered-OFDM filtered-OFDM, F-OFDM
  • Fig. 1 shows a schematic diagram of a communication system suitable for the sending and receiving methods and devices in the embodiments of the present application.
  • the communication system 100 may include at least one network device, such as the network device 110 shown in FIG. 1; the communication system 100 may also include at least one terminal device, such as the terminal device 120 shown in FIG. 1.
  • the network device 110 and the terminal device 120 may communicate through a wireless link.
  • Each communication device, such as the network device 110 or the terminal device 120 may be configured with multiple antennas, and the multiple antennas may include at least one transmitting antenna for transmitting signals and at least one receiving antenna for receiving signals.
  • each communication device additionally includes a transmitter chain and a receiver chain.
  • Those of ordinary skill in the art can understand that they can all include multiple components related to signal transmission and reception (such as processors, modulators, multiplexers). , Demodulator, demultiplexer or antenna, etc.). Therefore, the network device 110 and the terminal device 120 can communicate through multi-antenna technology.
  • the terminal equipment in the embodiments of this application may communicate with one or more core networks via a radio access network (RAN).
  • RAN radio access network
  • the terminal equipment may be referred to as an access terminal, user equipment (UE), Subscriber unit, subscriber station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent, or user device.
  • the access terminal can be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in the future 5G network, or terminals in the future evolved public land mobile network (PLMN) Equipment etc.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the network device in the embodiment of the application may be a device used to communicate with a terminal device.
  • 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 transceiver station (BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolved base station (evolved) in the LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolved evolved base station
  • NodeB eNB or eNodeB
  • the network device can be a relay station, access point, vehicle-mounted device, wearable device, and future
  • the network equipment in the 5G network or the network equipment in the future evolved PLMN network, etc. are not limited in the embodiment of the present application.
  • BBU baseband unit
  • DU distributed unit
  • the gNB may include a centralized unit (CU) and a DU.
  • the gNB may also include a radio unit (RU).
  • CU implements some functions of gNB
  • DU implements some functions of gNB, for example, CU implements radio resource control (radio resource control, RRC), packet data convergence protocol (packet data convergence protocol, PDCP) layer functions
  • DU implements wireless link
  • RRC radio resource control
  • PDCP packet data convergence protocol
  • DU implements wireless link
  • RLC radio link control
  • MAC media access control
  • PHY physical
  • the network device may be a CU node, or a DU node, or a device including a CU node and a DU node.
  • the CU can be divided into network equipment in an access network (radio access network, RAN), and the CU can also be divided into network equipment in a core network (core network, CN), which is not limited in this application.
  • the terminal device or the network device includes a hardware layer, an operating system layer running on the hardware layer, and an application layer running on the operating system layer.
  • the hardware layer includes hardware such as a central processing unit (CPU), a memory management unit (MMU), and memory (also referred to as main memory).
  • the operating system may be any one or more computer operating systems that implement business processing through processes, for example, Linux operating system, Unix operating system, Android operating system, iOS operating system, or windows operating system.
  • the application layer includes applications such as browsers, address books, word processing software, and instant messaging software.
  • the embodiments of the application do not specifically limit the specific structure of the execution subject of the methods provided in the embodiments of the application, as long as the program that records the codes of the methods provided in the embodiments of the application can be provided according to the embodiments of the application.
  • the execution subject of the method provided in the embodiment of the present application may be a terminal device or a network device, or a functional module in the terminal device or network device that can call and execute the program.
  • various aspects or features of the present application can be implemented as methods, devices, or products using standard programming and/or engineering techniques.
  • article of manufacture as used in this application encompasses a computer program accessible from any computer-readable device, carrier, or medium.
  • computer-readable media may include, but are not limited to: magnetic storage devices (for example, hard disks, floppy disks, or tapes, etc.), optical disks (for example, compact discs (CD), digital versatile discs (DVD)) Etc.), smart cards and flash memory devices (for example, erasable programmable read-only memory (EPROM), cards, sticks or key drives, etc.).
  • various storage media described herein may represent one or more devices and/or other machine-readable media for storing information.
  • machine-readable medium may include, but is not limited to, wireless channels and various other media capable of storing, containing, and/or carrying instructions and/or data.
  • the embodiments of this application may be applicable to LTE systems and subsequent evolutionary systems such as 5G, etc., or other wireless communication systems that use various wireless access technologies, such as code division multiple access, frequency division multiple access, time division multiple access, and orthogonal Frequency division multiple access, single carrier frequency division multiple access and other access technology systems are especially suitable for scenarios that require channel information feedback and/or apply secondary precoding technology, such as wireless networks using Massive MIMO technology, and distributed antennas Technology of wireless networks, etc.
  • wireless access technologies such as code division multiple access, frequency division multiple access, time division multiple access, and orthogonal Frequency division multiple access, single carrier frequency division multiple access and other access technology systems are especially suitable for scenarios that require channel information feedback and/or apply secondary precoding technology, such as wireless networks using Massive MIMO technology, and distributed antennas Technology of wireless networks, etc.
  • MIMO multiple-input multiple-output
  • the antenna transmits and receives, thereby improving communication quality. It can make full use of space resources and achieve multiple transmissions and multiple receptions through multiple antennas. Without increasing spectrum resources and antenna transmission power, it can double the system channel capacity.
  • the beam can be understood as a spatial filter or spatial parameters.
  • the beam used to transmit a signal can be called a transmission beam (Tx beam), it can be a spatial domain transmit filter or a spatial transmit parameter (spatial transmit parameters, spatial Tx parameters); a signal used for receiving
  • the beam may be called a receive beam (reception beam, Rx beam), and may be a spatial domain receive filter (spatial domain receive filter) or a spatial receive parameter (spatial receive parameters, spatial Rx parameters).
  • the beam forming technology may be beamforming technology or other technologies.
  • the beamforming technology may specifically be a digital beamforming technology, an analog beamforming technology, or a hybrid digital/analog beamforming technology.
  • the transmitting beam may refer to the distribution of signal strength in different directions in space after a signal is transmitted through the antenna, and the receiving beam may refer to the signal strength distribution of the wireless signal received from the antenna in different directions in space.
  • the beam may be a spatial filter, for example.
  • this application does not exclude the possibility of defining other terms to represent the same or similar meanings in future agreements.
  • the antenna panel is referred to as a panel.
  • Each antenna panel can be configured with one or more receive beams and one or more transmit beams. Therefore, the antenna panel can also be understood as a beam group.
  • Communication equipment such as terminal equipment or network equipment, can receive signals through the receiving beam on the antenna panel, or send signals through the transmitting beam on the antenna panel.
  • the network device and the terminal device communicate through an antenna, that is, the terminal device and the network device use the antenna to receive and send signals.
  • Both the terminal equipment and the network equipment have an antenna element (antenna element).
  • Multiple antenna units can be integrated on a panel. This panel integrated with the antenna unit is called an antenna panel (which can also be represented by a panel).
  • Each antenna panel can generate one or more beams, that is, each antenna panel can send and receive signals in one or more directions.
  • the antenna panel can also be expressed as an antenna array (antenna array) or an antenna subarray (antenna subarray).
  • One antenna panel may include one or more antenna arrays (antenna sub-arrays).
  • An antenna panel can be controlled by one or more oscillators.
  • a radio frequency circuit can drive one or more antenna elements on the antenna panel. Therefore, an antenna panel can be driven by one RF link or multiple RF links.
  • the radio frequency link may also be called a receiving channel and/or a sending channel, a receiver branch, and so on. Therefore, the antenna panel can also be replaced with a radio frequency link or multiple radio frequency links driving one antenna panel or one or more radio frequency links controlled by a crystal oscillator.
  • An antenna panel can also be a logical concept.
  • An antenna panel can be a logical entity (that is, it does not reflect a physical antenna structure), such as a collection of antenna ports, or a collection of transmitting and/or receiving beams, or a transmission and/or The collection of receiving directions.
  • the terminal device and the network device can distinguish the antenna panel by the panel identification ID.
  • the identification of the antenna panel can be a logical identification, or it can be embodied by the reference signal resource set identification (and/or the synchronization signal block resource set identification), for example, sounding reference signal (SRS) resource set ID, channel state information
  • the reference signal (channel state information reference signal, CSI-RS) resource set ID, etc. may also be a reference signal resource identifier (and/or a synchronization signal block resource identifier), such as SRS resource ID, CSI-RS resource ID, and so on.
  • the panel identifier is the identifier of the reference signal resource or the reference signal resource set
  • the identifier corresponds to the uplink reference signal resource (or the uplink reference signal resource set)
  • Uplink transmitting antenna panel or its corresponding downlink receiving panel if the identifier is a downlink reference signal resource and/or synchronization signal resource, the identifier corresponds to the downlink receiving panel receiving the downlink resource and/or synchronization signal resource or its corresponding Uplink sending panel.
  • the signaling indication sent by the network device to the terminal device mentioned in this article can be any one or more of the following (for example, a combination of them): RRC signaling, media access control control element (media access control control element, MAC CE) ) Signaling, DCI signaling.
  • the signaling mentioned in this article can also include broadcast channel information, system messages, system message updates, and remaining system messages.
  • the information sent by the terminal device to the network device mentioned in this article may be one or more of uplink RRC signaling, uplink MAC-CE signaling, and uplink control information (UCI) signaling (for example, a combination thereof). ).
  • uplink communication includes the transmission of uplink physical channels and uplink signals.
  • the uplink physical channel includes random access channel (random access channel, PRACH), uplink control channel (physical uplink control channel, PUCCH), uplink data channel (physical uplink shared channel, PUSCH), etc.
  • uplink signals include SRS, uplink control channel Demodulation reference signal (PUCCH de-modulation reference signal, PUCCH-DMRS), uplink data channel demodulation reference signal PUSCH-DMRS, uplink phase noise tracking signal (phase noise tracking reference signal, PTRS), etc.
  • Downlink communication includes the transmission of downlink physical channels and downlink signals.
  • the downlink physical channel includes the broadcast channel (physical broadcast channel, PBCH), the downlink control channel (physical downlink control channel, PDCCH), and the downlink data channel (physical downlink shared channel, PDSCH), etc.
  • the downlink signal includes the primary synchronization signal (primary synchronization signal). ,PSS)/secondary synchronization signal (SSS), downlink control channel demodulation reference signal PDCCH-DMRS, downlink data channel demodulation reference signal PDSCH-DMRS, downlink PTRS, CSI-RS, cell reference signal (cell reference signal) , CRS) (not in NR), fine synchronization signal (time/frequency tracking reference signal, TRS), etc.
  • the network device can use signaling to instruct the transmitting/receiving antenna panel, or the terminal device recommends the network device to configure the transmitting/receiving antenna panel, or the transmitting/receiving antenna panel is predefined by the protocol.
  • the above uplink control channel PUCCH is taken as an example. If there are multiple PUCCH resources/resource sets, the network device may configure an antenna panel list for one PUCCH resource/resource set or multiple PUCCH resources/resource sets. Optionally, the network device can configure an antenna panel list for all PUCCH resources of a terminal device, and the network device can also be all the PUCCHs of a terminal device in a band or carrier (cell) or bandwidth part (BWP).
  • the resource/resource collection configures a list of antenna panels. There are one or more antenna panel identifiers in an antenna panel list.
  • control resource sets control resource sets, CORESET
  • search space sets search space sets
  • the antenna panel list can be configured by RRC signaling.
  • the information of the antenna panel may also be configured in a beam indicator, for example, in an uplink beam indicator (spatial relation), or a downlink transmission configuration indicator (TCI).
  • a beam indicator for example, in an uplink beam indicator (spatial relation), or a downlink transmission configuration indicator (TCI).
  • TCI downlink transmission configuration indicator
  • the configuration and activation method of the beam indication can be used for the configuration and activation of the antenna panel, for example, the beam configuration and activation represent the configuration and activation of the corresponding antenna panel.
  • the network device can be configured with an activated antenna panel. Taking the above uplink control channel PUCCH as an example, the network device can activate one or more antenna panels for a PUCCH resource/resource set. The network device can also activate one or more antenna panels for multiple PUCCH resources/resource sets.
  • the activation of the antenna panel may be indicated by MAC CE signaling.
  • the activated antenna panel may be one or more of the above-mentioned antenna panels configured by RRC signaling.
  • the format of the MAC CE signaling includes the following content: carrier (cell) and/or bandwidth part (BWP) identifiers, identifiers of one or more PUCCH resources/resource sets, and antenna panel identifiers.
  • the identifier of the antenna panel may be a relative identifier, an absolute identifier, or a form of ⁇ S 0 , S 1 ,..., S n ⁇ , where n is equal to the size of the antenna panel list configured by the RRC.
  • S 0 is 1 means that the lowest/highest/first/last antenna panel in the antenna panel list of RRC signaling configuration is activated
  • S 1 is 1 means the second is identified in the antenna panel list of RRC signaling configuration.
  • the low/second high/second/last antenna panel is activated, and so on. If S 0 is 0, it means that the antenna panel with the lowest/highest/first/last-to-last antenna panel in the list of antenna panels configured by RRC signaling is deactivated. If S 1 is 0, it means the antenna panel with the lowest identifier in the list of antenna panels configured by RRC signaling is deactivated. The second low/second high/second/last antenna panel is deactivated, and so on.
  • the above deactivation can be understood as putting the antenna panel in a dormant state (also referred to herein as an inactive state).
  • the activation of the antenna panel may be indicated by DCI signaling.
  • the bit length of the field indicating the antenna panel in the DCI signaling may be determined by the capability of the terminal device, or may be determined by the size of the antenna panel list configured in the RRC signaling, which is not limited here.
  • the same antenna panels are essentially the same physical entities or logical entities of the antenna panels used. It may be specifically embodied as: the antenna panel identifiers are the same, or all or part of the information carried in the antenna panel identifiers is the same. It can also be embodied as: the antenna panel identification is associated, or all or part of the information carried in the antenna panel identification is associated.
  • the association may refer to the uplink and downlink transmit/receive antenna panels, for example ⁇ transmit antenna panel #1, receive antenna panel #1 ⁇ is a fixed transmit and receive pair.
  • the association may also refer to the reference signal/reference signal set association that represents the antenna panel, for example ⁇ CSI-RS resource set#1, SRS resource set#2 ⁇ . This association relationship may be notified by a network device, may also be fed back by a terminal device, or may be determined by a protocol predefined rule, which is not limited in the embodiment of the present application.
  • the beam pairing relationship that is, the pairing relationship between the transmitting beam and the receiving beam
  • a larger beamforming gain can be obtained by transmitting signals between the transmitting beam and the receiving beam with a beam pairing relationship.
  • the transmitting end may send the reference signal through beam scanning, and the receiving end may also receive the reference signal through beam scanning.
  • the transmitting end can form beams with different directivities in space by beamforming, and can poll on multiple beams with different directivities to transmit reference signals through beams with different directivities, so that The power of the reference signal transmitted in the direction of the transmission beam can reach the maximum.
  • the receiving end can also form beams with different directivities in space through beamforming, and can poll on multiple beams with different directivities to receive reference signals through beams with different directivities, so that the receiving end can receive The power of the reference signal can reach the maximum in the direction in which the receiving beam points.
  • the receiving end can perform channel measurement based on the received reference signal, and report the measurement result to the transmitting end through channel state information (CSI).
  • CSI channel state information
  • the receiving end may report a part of the reference signal resource with a larger reference signal receiving power (RSRP) to the transmitting end, such as reporting the identifier of the reference signal resource, so that the transmitting end can use the channel when transmitting data or signaling.
  • RSRP reference signal receiving power
  • the terminal device may be based on
  • the spatial relationship can be used for the terminal equipment to determine the transmission beam of the uplink signal or the uplink channel.
  • Each spatial relationship may include a reference signal resource identification.
  • the reference signal resource identifier may be any one of the following: SSB index (SSB-Index), non-zero power CSI-RS reference signal resource identifier (NZP-CSI-RS-ResourceId), and sounding reference signal resource identifier (SRS Resource) Id, SRI, where the sounding reference signal (sounding reference signal) is referred to as SRS for short).
  • the reference signal resource identifier refers to the identifier of the reference signal resource used in the beam training process.
  • a spatial relationship is used to determine a transmission beam.
  • the terminal device may maintain the corresponding relationship between the reference signal resource identifier and the transmitting beam during the beam training process, and the network device may maintain the corresponding relationship between the reference signal resource identifier and the receiving beam during the beam training process.
  • the pairing relationship between the transmitting beam and the receiving beam can be established.
  • the terminal device may determine the transmitting beam based on the spatial relationship indicated by the network device, and the network device may determine the receiving beam based on the same spatial relationship.
  • each spatial relationship may also include power control information.
  • the power control information may include, for example, at least one of the following: expected received power, path loss reference signal, and path loss compensation parameter ⁇ .
  • the terminal device can determine what transmission power to use to transmit the uplink signal based on the power control information.
  • the spatial relationship may also include the physical cell ID (PCI), the serving cell index (SCI), the bandwidth part (BWP) identifier (ID), etc., here This will not be explained in detail.
  • PCI physical cell ID
  • SCI serving cell index
  • BWP bandwidth part
  • ID bandwidth part
  • the transmitter and receiver Each end can obtain gain through beamforming.
  • the sending end and the receiving end can send and receive signals through a predetermined beam pairing relationship.
  • the terminal device may be equipped with multiple antenna panels to cover multiple different directions.
  • the beam can receive or send data through the antenna panel.
  • a terminal device uses only one antenna panel at the same time, and other antenna panels of the terminal device may be in a dormant state (also called a closed state or an inactive state). It takes a certain time for an antenna panel to switch from the dormant state to the active state (also called the on state), for example, 2 milliseconds to 3 milliseconds.
  • a BWP can be configured with multiple physical uplink control channel (PUCCH) resources, where each PUCCH resource can have different transmission beams, and these different transmission beams may be formed by different antenna panels.
  • the network equipment will schedule the terminal equipment to transmit the physical uplink shared channel (PUSCH) through the downlink control information (DCI).
  • the PUSCH transmission beam may be configured by the network device, or agreed by the protocol.
  • One method for determining the transmission beam of the PUSCH is that the network device carries an indication information to indirectly indicate in the uplink scheduling (UL grant), for example, the SRI field in the DCI format 0_1 in the protocol R15.
  • the indication information identifies an uplink SRS resource, and the transmission beam and transmission precoding matrix of the SRS are used for PUSCH transmission.
  • the transmission beam of the SRS is configured by the network device.
  • a method to determine the PUSCH transmission beam is that the terminal device The PUCCH transmission beam is used to determine the PUSCH transmission beam, where the PUCCH transmission beam is configured by the network device. Specifically, the terminal device may use the transmission beam of the PUCCH resource with the smallest identification ID among the multiple PUCCH resources as the transmission beam of the PUSCH.
  • each BWP can be configured with multiple PUCCH resources, and each PUCCH resource can correspond to different transmission beams, and different transmission beams may be formed by different antenna panels.
  • the terminal device needs to switch the beam, it may need to switch the antenna panel and switch to the corresponding beam on the antenna panel to send and receive signals. Therefore, if the network device does not explicitly instruct the transmission beam, if the PUCCH resource ID is the smallest rule to determine the PUSCH transmission beam, it may cause the problem of frequent switching of the antenna panel of the terminal device. If the antenna panel is further considered from sleep In the transition time from the state to the active state, it is possible that the terminal device has not switched the antenna panel, and the scheduled resource has already arrived, which causes the problem that the antenna panel of the terminal device is too late to switch.
  • two PUCCH resources are configured with different beams generated by different antenna panels (antenna panel 1 and antenna panel 2) as transmission beams. Assuming that PUCCH resource 2 is used frequently, antenna panel 2 is always used. In the activated state, the antenna panel 1 corresponding to the PUCCH resource 1 is in a dormant state or closed state (or called an inactive state) for a long time due to power saving and other reasons. In this case, the PUSCH scheduled by DCI format 0_0 uses the transmit beam of PUCCH resource 1 with the smaller ID, which will cause unnecessary antenna panel switching, and it takes a while for antenna panel 1 to turn on.
  • Urgent for example, the time interval between DCI and PUSCH is less than the opening time of the antenna panel, it will also cause the antenna panel to be too late to switch, and the terminal device cannot send the PUSCH according to the schedule of the network device.
  • the present application provides a data transmission method, which is beneficial to avoid the frequent switching and too late switching of the antenna panel of the terminal device, thereby improving the data transmission performance.
  • panel activation and panel switching are collectively referred to as panel switching, and the delay of panel activation and panel switching are collectively referred to as the delay of panel switching.
  • panel switching panel activation and panel switching
  • the delay of panel activation and panel switching are collectively referred to as the delay of panel switching.
  • "indication” may include direct indication and indirect indication, and may also include explicit indication and implicit indication.
  • the information indicated by a certain piece of information (configuration information as described below) is called information to be instructed.
  • information to be instructed there are many ways to indicate the information to be indicated. For example, but not limited to, you can directly indicate Information, such as the information to be indicated or the index of the information to be indicated.
  • the information to be indicated can also be indicated indirectly by indicating other information, where there is an association relationship between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, and other parts of the information to be indicated are known or agreed in advance. For example, it is also possible to realize the indication of specific information by means of the pre-arranged order (for example, stipulated in the agreement) of various information, thereby reducing the indication overhead to a certain extent.
  • line control information DCI
  • medium access control control element MAC CE
  • radio resource control RRC
  • physical downlink control channel physical downlink control channel
  • PDCCH physical downlink control channel
  • PDSCH physical downlink share channel
  • PUCCH physical uplink control channel
  • PUSCH physical uplink share channel
  • CSI-RS channel status information Reference signals
  • SRS sounding reference signals
  • the first, second, and various numerical numbers are only for easy distinction for description, and are not used to limit the scope of the embodiments of the present application. For example, distinguish different indication information, different beams, and different panels.
  • the “protocols” involved in the embodiments of the present application may refer to standard protocols in the communication field, for example, may include LTE protocol, NR protocol, and related protocols applied to future communication systems, which are not limited in this application.
  • At least one refers to one or more, and “multiple” refers to two or more.
  • And/or describes the association relationship of the associated objects, indicating that there can be three relationships, for example, A and/or B, which can mean: A alone exists, both A and B exist, and B exists alone, where A, B can be singular or plural.
  • the character “/” generally indicates that the associated objects are in an “or” relationship.
  • "The following at least one item (a)” or similar expressions refers to any combination of these items, including any combination of a single item (a) or plural items (a).
  • At least one of a, b, and c can mean: a, or b, or c, or a and b, or a and c, or b and c, or a, b and c, where a, b, c can be single or multiple.
  • the technical solution of the present application can be applied to a wireless communication system, for example, the communication system 100 shown in FIG. 1.
  • a wireless communication connection relationship between two communication devices in the wireless communication system may correspond to the terminal device 120 shown in FIG. 1, for example, as shown in FIG.
  • the terminal device shown may also be a chip configured in the terminal device; the other communication device of the two communication devices may correspond to the network device 110 shown in FIG. 1, for example, it may be the chip shown in FIG.
  • the network device may also be a chip configured in the network device.
  • the interaction process between the terminal device and the network device is taken as an example to describe in detail the signal transmission method provided in the embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a data transmission method 200 provided by an embodiment of the present application from the perspective of device interaction. As shown in the figure, the method 200 shown in FIG. 2 may include step 210 to step 230. The method 200 will be described in detail below in conjunction with the drawings.
  • S210 The terminal device determines the transmission beam of the uplink channel.
  • S220 The network device determines the transmission beam of the uplink channel
  • the terminal device uses the transmission beam to transmit the uplink channel; then, correspondingly, the network device uses a reception beam corresponding to the transmission beam to receive the uplink channel.
  • the transmission beam is a transmission beam that the terminal device has recently used or a transmission beam to be used recently; and/or, the antenna panel corresponding to the transmission beam is an antenna panel that the terminal device has recently used or a recently Antenna panel to be used.
  • the foregoing uplink channel may also be referred to as the first uplink channel herein, and the first uplink channel is used for description in the following.
  • the first uplink channel may be an uplink data channel, for example, PUSCH.
  • the foregoing transmission beams may also be referred to as "default transmission beams”, “transmission beams”, “default transmission beams”, etc., and the names thereof are not limited in this application.
  • the antenna panel corresponding to the transmitting beam is the antenna panel that the terminal device has used recently or the antenna panel that will be used recently. It can also be understood that the transmitting beam corresponds to the antenna panel that the terminal device has recently used. The beam or the beam corresponding to the antenna panel that will be used recently.
  • the beam corresponding to the antenna panel can be one beam or multiple beams (ie a collection of beams), and the one or more beams can be configured by the network device for the terminal device through the beam indication, or it can be the terminal
  • the device autonomously determines, for example, the terminal device can record the beam used by the antenna panel for receiving and/or sending, or the terminal device can determine the beam corresponding to the antenna panel by itself and report it to the network device. Since an antenna panel can be used for receiving and/or sending multiple beams, the "beam corresponding to the antenna panel" ultimately used by the terminal device can be any one of the multiple beams, or the multiple beams.
  • the beam with the highest signal quality among the beams may also adopt the method in the subsequent embodiments of the present application, that is, selecting the transmission beam corresponding to the PUCCH resource with the smallest identification ID among the multiple beams, which is not limited in the embodiment of the present application.
  • both the terminal device and the network device need to determine the transmission beam of the first uplink channel.
  • the terminal device can use the transmission beam to transmit the first uplink channel, and the network device can The first uplink channel is received by using a receiving beam corresponding to the sending beam.
  • the transmission beam may be a transmission beam recently used by the terminal device or a transmission beam to be used recently, and/or the antenna panel corresponding to the transmission beam is an antenna panel that the terminal device has recently used or an antenna panel to be used recently.
  • the transmit beam can be the transmit beam that the terminal device has recently used
  • the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device has recently used
  • the transmit beam is the transmit beam that the terminal device will use recently.
  • the antenna panel corresponding to the beam is the antenna panel that the terminal device will use recently. But the reverse is not necessarily true.
  • the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device has recently used, but the antenna panel can form multiple beams.
  • the transmit beam of the first uplink channel is not necessarily the one that the terminal device has recently used.
  • the transmit beam may be the beam with the highest signal quality among the beams corresponding to the antenna panel, or the transmit beam may be any of the three beams with the highest signal quality among the beams corresponding to the antenna panel This embodiment of the application does not limit this.
  • the antenna panel corresponding to the transmit beam is the antenna panel that the terminal device will use recently, but the antenna panel can form multiple beams, and the transmit beam of the first uplink channel is not necessarily the one that the terminal device will use recently.
  • the transmission time unit described in the embodiment of the present application refers to a time unit in which data or signals have been transmitted (including sent and/or received), or a time unit in which data or signals will be transmitted.
  • the aforementioned "recently used" beam or antenna panel refers to the beam or antenna panel corresponding to the last transmission time unit (for example, the last time slot for transmitting data or signals) before the terminal device sends the first uplink channel.
  • the time unit corresponding to the "recently used" beam or antenna panel is the time unit that has transmitted data or signals before the time unit of the first uplink channel is sent, and has the smallest time interval from the time unit of the first uplink channel.
  • Time unit; the above-mentioned “recently to be used” beam or antenna panel means the beam or corresponding to the first transmission time unit (for example, the first time slot for transmitting data or signals) after the terminal device sends the first uplink channel
  • Antenna panel in other words, the time unit corresponding to the beam or antenna panel "to be used recently" is after the time unit of transmitting the first uplink channel, the data or signal to be transmitted, and the time unit corresponding to the time unit of transmitting the first uplink channel The unit of time with the smallest time interval.
  • the beam or antenna panel "to be used recently" is configured by network equipment for terminal equipment through signaling.
  • the terminal device can determine the transmission of the first uplink channel The beam is the antenna panel 2, and the terminal device can also determine that the transmission beam of the first uplink channel is the antenna panel 3. In this way, the terminal device can avoid switching the antenna panel as much as possible, which is not limited in this embodiment of the application.
  • the data transmission method of the embodiment of the present application uses the antenna panel that the terminal device has recently used or the antenna panel that will be used recently as the antenna panel corresponding to the transmission beam of the terminal device transmitting the first uplink channel, which is beneficial to avoid the terminal device antenna The frequent switching of the panel and the problem of too late to switch, thereby improving the data transmission performance.
  • the time interval between the time slot corresponding to the above "recently used” and the current time when PUSCH is sent cannot be too large, otherwise the antenna panel may have been turned off and in an inactive state. If you want to transmit PUSCH again, you need to It takes some time to activate the closed antenna panel. In the same way, the time interval between the time slot corresponding to the above "will be used recently" and the current time when PUSCH is sent cannot be too large, otherwise the antenna panel may not be activated yet. To transmit PUSCH, it needs to be in an inactive state. The antenna panel is activated in advance and it takes a certain amount of time. The maximum value of the foregoing time interval may be agreed upon by a protocol, or configured by a network device through signaling.
  • the method further includes: the terminal device determines the first transmission time unit between the transmission time unit corresponding to the recently used transmission beam or antenna panel and the time unit for transmitting the first uplink channel. A time interval, and a second time interval between the transmission time unit corresponding to the transmit beam or antenna panel that will be used recently and the time unit for transmitting the first uplink channel; the terminal device sets the first time The transmission beam or antenna panel corresponding to the interval and the smaller time interval in the second time interval is used as the transmission beam or the antenna panel corresponding to the transmission beam.
  • the terminal device can choose from the recently used transmit beam or antenna panel and the transmit beam or antenna panel that will be used recently according to specific conditions, so that the terminal device uses an active antenna panel as much as possible to avoid The frequent switching of the antenna panel of the terminal equipment and the problem of too late to switch.
  • the processing actions performed by the network equipment are similar to those of the terminal equipment, and will not be repeated here.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the network device sends control information to the terminal device, and correspondingly, the terminal device receives The control information of the network device, the control information is used to schedule the first uplink channel, and the control information does not include information used to indicate the transmission beam of the first uplink channel and information used to indicate the first uplink channel Information of the antenna panel corresponding to the transmit beam of an uplink channel.
  • the foregoing first uplink channel is scheduled by the network device through control information, for example, the network device schedules PUSCH transmission through DCI. Therefore, in the embodiment of the present application, the control information does not include information indicating the transmission beam of the first uplink channel and information indicating the antenna panel corresponding to the transmission beam of the first uplink channel. That is, the embodiment of the application does not explicitly indicate the transmission beam of the first uplink channel, but adopts an implicit determination method, so that the network equipment and terminal equipment use the default transceiver beam pair to transmit on the first uplink channel, which avoids the terminal Frequent switching of the antenna panel of the device.
  • the method before the terminal device determines the transmission beam of the first uplink channel, the method further includes: the network device sends control information to the terminal device, and correspondingly, the terminal device receives Control information of a network device, the control information is used to schedule the first uplink channel, the control information includes information used to indicate the antenna panel corresponding to the transmit beam of the first uplink channel, and the control information is not It includes information used to indicate the transmission beam of the first uplink channel.
  • the terminal device may use the antenna panel indicated by the control information to transmit the first uplink channel.
  • the transmit beam of the first uplink channel can refer to the PUCCH resource with the smallest ID among the multiple PUCCH resources, that is, the transmit beam of the first uplink channel It is the transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the transmission beam is a physical uplink control channel PUCCH resource used recently by the terminal device or a transmission beam corresponding to a PUCCH resource to be used recently.
  • the foregoing transmission beam may refer to the PUCCH resource used by the terminal device recently or the PUCCH resource to be used recently.
  • the transmission beam may be a transmission beam corresponding to a PUCCH resource recently used by the terminal device, or the transmission beam may be a transmission beam corresponding to a PUCCH resource that the terminal device will use recently.
  • the PUCCH resource is configured by the network device for the terminal device through signaling.
  • the method further includes: the network device sends second configuration information to the terminal device, then correspondingly, the The terminal device receives second configuration information from the network device, where the second configuration information is used to configure resources of the second uplink channel, and the resources include time domain resources, frequency domain resources, transmission beams of the second uplink channel, and At least one of the antenna panels corresponding to the transmit beam of the second uplink channel; the terminal device determining the transmit beam of the first uplink channel includes: the terminal device determines the first uplink channel according to the second configuration information The transmit beam of the uplink channel.
  • the network device may send second configuration information to the terminal device to configure the resource of the second uplink channel
  • the second uplink channel may be an uplink control channel, such as a PUCCH.
  • the resources of the second uplink channel may include at least one of time domain resources, frequency domain resources, transmission beams, and antenna panels (also referred to as transmission antenna panels) corresponding to the transmission beams of the second uplink channel.
  • a PUCCH resource may include: the time-frequency resource of the PUCCH resource (for example, the information of occupied resource element (resource element, RE)), the time-domain behavior of the PUCCH resource (for example, period, offset, etc.), and the PUCCH The transmission beam of the resource (PUCCH spatial relation).
  • the transmission beam indication may be used to indicate the transmission beam of the above PUCCH resource, and specifically may include the identifier of the uplink beam management resource, such as SRS resource ID and/or SRS resource set ID, and the identifier of the downlink beam management resource, such as synchronization signal block (synchronization signal block, SSB) index (index), CSI-RS resource ID and/or CSI RS resource set ID, etc.
  • the uplink beam management resource such as SRS resource ID and/or SRS resource set ID
  • the identifier of the downlink beam management resource such as synchronization signal block (synchronization signal block, SSB) index (index), CSI-RS resource ID and/or CSI RS resource set ID, etc.
  • the network device may configure one PUCCH resource or multiple PUCCH resources for the terminal device through a piece of second configuration information, and may also configure multiple PUCCH resources for the terminal device through multiple pieces of second configuration information.
  • Each second configuration information in the second configuration information configures a PUCCH resource for the terminal device, which is not limited in the embodiment of the present application.
  • the aforementioned PUCCH resource may further include: the transmitting antenna panel of the PUCCH resource, specifically including the explicit or implicit antenna panel identifier, the group number of a group of beams formed by the antenna panel, and the identifier of the uplink beam management resource set , Such as SRS resource ID and/or SRS resource set ID, and identifier of downlink beam management resource set, such as SSB index, CSI-RS resource ID, and/or CSI RS resource set ID, etc.
  • the transmission beam is the smallest or largest ID among the multiple PUCCH resources.
  • the transmission beam corresponding to the PUCCH resource is the smallest or largest ID among the multiple PUCCH resources.
  • the foregoing transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest or largest ID among the multiple PUCCH resources.
  • the PUCCH resource recently used by the terminal device or the PUCCH resource to be used recently includes PUCCH resource 1, PUCCH resource 2, and PUCCH resource 3. Then the terminal device can determine that the transmission beam of the first uplink channel is the transmission corresponding to PUCCH resource 1. Beam, or, the terminal device may determine that the transmission beam of the first uplink channel is the transmission beam corresponding to PUCCH resource 3.
  • the transmission beam is the transmission beam corresponding to the PUCCH resource with the smallest or largest ID among the multiple PUCCH resources.
  • the foregoing transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest or largest ID among multiple PUCCH resources configured with antenna panels that have been used recently.
  • the antenna panel that the terminal device has recently used is antenna panel 2
  • the PUCCH resources configured with this antenna panel 2 include PUCCH resource 2, PUCCH resource 4, and PUCCH resource 5.
  • the terminal device can determine the transmission beam of the first uplink channel It is the transmission beam corresponding to PUCCH resource 2, or the terminal device may determine that the transmission beam of the first uplink channel is the transmission beam corresponding to PUCCH resource 5.
  • the above-mentioned minimum ID or maximum ID is only a rule set by the network device and the terminal device to determine the transmission beam in a default manner, and the terminal device may also refer to the PUCCH resource of the specified ID, which is not limited in this embodiment of the application.
  • the method further includes: the terminal device determines whether the uplink antenna panel that the terminal device has recently used is in the active state; if the uplink antenna panel that the terminal device has recently used is in the active state , The terminal device determines that the antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device has recently used; or, if the uplink antenna panel that the terminal device has recently used is in an inactive state, the The terminal device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device has recently used.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the terminal device has recently used; or, if the terminal device has recently used it If the previously used uplink antenna panel is in an inactive state, the transmit beam is a beam corresponding to the downlink antenna panel that the terminal device has recently used.
  • the uplink antenna panel described herein refers to the antenna panel used for uplink transmission
  • the downlink antenna panel refers to the antenna panel used for downlink transmission.
  • the terminal device can determine the recently used uplink antenna when it is determined to refer to the recently used antenna panel Whether the panel is active. If the recently used uplink antenna panel is in the active state, the terminal device can use the recently used uplink antenna panel. If the recently used uplink antenna panel is in an inactive state, the terminal device can use the recently used downlink antenna panel. Further, the terminal device can select a recently used downlink antenna panel among the downlink antenna panels in the active state.
  • the method further includes: the network device determines whether the uplink antenna panel recently used by the terminal device is in an active state; if the uplink antenna panel recently used by the terminal device is in an active state The network device determines that the antenna panel corresponding to the transmitting beam is the uplink antenna panel that the terminal device has recently used; or, if the uplink antenna panel that the terminal device has recently used is in an inactive state, the network device It is determined that the antenna panel corresponding to the transmitting beam is the downlink antenna panel recently used by the terminal device.
  • the network equipment needs to use the same method as the terminal equipment to determine the above Whether the uplink antenna panel of the terminal device is in the active state, so as to determine whether the terminal device uses the uplink antenna panel or the downlink antenna panel to transmit the first uplink channel, which will not be repeated here.
  • the method further includes: the terminal device determines a third interval between the time unit of the last uplink transmission of the terminal device and the time unit of the terminal device transmitting the first uplink channel. Time interval; the terminal device determines the fourth time interval between the time unit of the last downlink reception of the terminal device and the time unit of the terminal device sending the first uplink channel; the terminal device determines the first uplink channel
  • the antenna panel corresponding to the smaller of the three time intervals and the fourth time interval is determined as the antenna panel corresponding to the transmission beam.
  • the terminal device can select the antenna panel corresponding to the time unit corresponding to the smaller value of n 1 and n 2 .
  • n, n 1 and n 2 are all integers greater than or equal to zero.
  • the terminal device can select from the recently used uplink antenna panel and the recently used downlink antenna panel according to the specific situation, so that the terminal device uses the antenna panel in the active state as much as possible, thereby avoiding the antenna panel of the terminal device
  • the processing actions performed by the network equipment are similar to those of the terminal equipment, and will not be repeated here.
  • the method further includes: the terminal device determines the fifth time unit between the time unit at which the terminal device will transmit the first uplink channel and the time unit at which the terminal device transmits the first uplink channel. Time interval; the terminal device determines the sixth time interval between the time unit that the terminal device will receive recently downlink and the time unit at which the terminal device sends the first uplink channel; the terminal device determines the first uplink channel
  • the antenna panel corresponding to the smaller time interval of the fifth time interval and the sixth time interval is determined as the antenna panel corresponding to the transmission beam.
  • the time unit for sending the first uplink channel is n
  • the time unit for the latest uplink transmission is n+n 3
  • the time unit for the latest downlink reception is n+n 4 , that is, the fifth time interval mentioned above is n 3
  • the six time interval is n 4
  • the terminal device can select the antenna panel corresponding to the time unit corresponding to the smaller value of n 3 and n 4 .
  • n, n 3 and n 4 are all integers greater than or equal to zero.
  • the terminal device can choose from the uplink antenna panel that will be used recently and the downlink antenna panel that will be used recently according to the specific situation, so that the terminal device uses the antenna panel in the active state as much as possible, thereby avoiding the antenna panel of the terminal device.
  • the terminal device may also select a minimum time interval from the foregoing third time interval, fourth time interval, fifth time interval, and sixth time interval, and determine the antenna panel corresponding to the smallest time interval as the The antenna panel corresponding to the transmitting beam.
  • the time unit for sending the first uplink channel is n
  • the time unit for the last uplink transmission is nn 1
  • the time unit for the last downlink reception is nn 2
  • the time unit for the latest uplink transmission is n+n 3
  • the time unit to be received in downlink recently is n+n 4
  • the terminal device can select the antenna panel corresponding to the time unit corresponding to the smallest value among n 1 , n 2 , n 3 and n 4 .
  • processing actions performed by the network device are similar to those of the terminal device, and will not be repeated here.
  • the method further includes: the terminal device determines whether the uplink antenna panel that the terminal device will use recently is in the active state; if the uplink antenna panel that the terminal device will use recently is in the active state , The terminal device determines that the antenna panel corresponding to the transmitting beam is the uplink antenna panel that the terminal device will use recently; or, if the uplink antenna panel that the terminal device will use recently is in an inactive state, the The terminal device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device will use recently.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the terminal device will use recently; or, if the terminal device will If the used uplink antenna panel is in an inactive state, the transmission beam is the beam corresponding to the downlink antenna panel that the terminal device will use recently.
  • the terminal device can determine whether the uplink antenna panel to be used recently is determined by referring to the antenna panel to be used recently. Is active. If the uplink antenna panel to be used recently is in an active state, the terminal device can use the uplink antenna panel to be used recently. If the uplink antenna panel that will be used recently is in an inactive state, the terminal device can use the downlink antenna panel that will be used recently. Further, the terminal device can select a downlink antenna panel to be used recently among the downlink antenna panels in the active state.
  • the method further includes: the network device determines whether the uplink antenna panel that the terminal device will use recently is in the active state; if the uplink antenna panel that the terminal device will use recently is in the active state , The network device determines that the antenna panel corresponding to the transmitting beam is the uplink antenna panel that the terminal device will use recently; or if the uplink antenna panel that the terminal device will use recently is in an inactive state, the The network device determines that the antenna panel corresponding to the transmitting beam is the downlink antenna panel that the terminal device will use recently.
  • the network equipment needs to use the same method as the terminal equipment to determine the above Whether the uplink antenna panel is in the active state, so as to determine whether the terminal device transmits the first uplink channel using the uplink antenna panel or the downlink antenna panel, which will not be repeated here.
  • the state of the antenna panel needs to be synchronized between the network device and the terminal device, that is, the antenna panel is in an active or inactive state.
  • the method further includes: the terminal device sends capability information to the network device, where the capability information is used to indicate the length of time that the uplink antenna panel of the terminal device remains active;
  • the network device receives the capability information from the terminal device; the network device judging whether the recently used uplink antenna panel is in the active state, including: the network device judging according to the capability information Whether the recently used uplink antenna panel is active.
  • the aforementioned terminal device may send to the network device capability information indicating the keep-alive duration of the terminal device's uplink antenna panel, and the network device may determine whether the terminal device's uplink antenna panel is in an active state according to the capability information.
  • the method further includes: the network device sends first configuration information to the terminal device, where the first configuration information is used to indicate that the uplink antenna panel of the terminal device is required to remain active Correspondingly, the terminal device receives the first configuration information from the network device; the terminal device determines whether the uplink antenna panel that the terminal device has recently used is in an active state, including: the terminal device according to the According to the first configuration information, it is determined whether the uplink antenna panel that the terminal device has recently used is in an active state.
  • the aforementioned network device may send to the terminal device the first configuration information used to indicate the keep-alive duration of the uplink antenna panel of the terminal device.
  • the first configuration information requires the terminal device to maintain the uplink antenna panel for the duration indicated by the first configuration information after the uplink antenna panel is activated.
  • the terminal device can determine whether the uplink antenna panel of the terminal device is in the active state according to the first configuration information.
  • the first configuration information is determined by the network device according to the capability information of the terminal device.
  • the capability information indicates the duration Y during which the uplink antenna panel of the terminal device can remain activated
  • the first configuration information indicates the duration X during which the network device requires the terminal device to keep the uplink antenna panel activated.
  • X is less than or equal to Y
  • both X and Y are greater than 0.
  • the data transmission method proposed in the embodiment of this application can be divided into the following three possible situations:
  • the terminal device does not switch the antenna panel, nor does it switch the transmission beam. That is, the transmission beam of the PUSCH is the transmission beam corresponding to the PUCCH resource recently used by the terminal device.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among the PUCCH resources.
  • a terminal device can transmit PUSCH, the transmission beam of this PUSCH and the transmission beam of the PUCCH resource with the smallest ID among the most recently used PUCCH resources of the activated UL BWP of the cell Consistent.
  • the UE shall transmit PUSCH according to the spatial relation, if applicable, corresponding to the PUCCH resource with the lowest ID of the latest cell of the UL with the latest B WP
  • the terminal device does not switch the antenna panel, but switches the transmission beam, that is, switches from one beam to another beam on the same antenna panel. That is, the antenna panel corresponding to the PUSCH transmission beam is the antenna panel that has been used most recently among the antenna panels that use PUCCH resources.
  • the transmission beam is a transmission beam corresponding to the PUCCH resource with the smallest ID among multiple PUCCH resources configured with an antenna panel that has been used recently among antenna panels that use PUCCH resources.
  • the terminal device can transmit the PUSCH, and the transmission beam of the PUSCH is the PUCCH resource with the smallest ID among the PUCCH resources corresponding to the recently used antenna panel of the activated UL BWP of the cell The transmission beams of the resources are consistent.
  • the UE shall transmit PUSCH according to the spatial relation, if applicable, corresponding to the PUCCH resource with the lowest of the source ID which has the latest the same source ID which has the latest the same the active UL BWP of the cell.
  • the terminal device uses a transmitting antenna panel corresponding to a channel/signal (including a downlink channel/signal) other than the PUCCH as the transmitting antenna panel. That is, the antenna panel corresponding to the transmission beam of the PUSCH is the most recently used antenna panel among the antenna panels using the first resource.
  • the transmission beam is a transmission beam corresponding to the first resource with the smallest ID among multiple first resources configured with antenna panels that have been used recently among the antenna panels that use the first resource.
  • the first resource may be PUSCH resource, SRS resource, CSI-RS resource, PDSCH resource, or PDCCH resource.
  • the terminal device can transmit PUSCH, the transmission beam of this PUSCH and the activated UL/DL BWP of the cell that have been used recently to transmit PUSCH, SRS, CSI- Among the resources corresponding to the antenna panels of the RS, PDSCH, or PDCCH, the transmission beam of the resource with the smallest ID is the same.
  • the UE shall transmit PUSCH according to the spatial relation, if applicable, corresponding to the resource with the lowest ID which has for the CSI PUSCH as the pan el -RS/PDSCH/PDCCH in the latest slot within the active UL/DL BWP of the cell.
  • the antenna panel corresponding to the transmitting beam is the antenna panel 1 that is most recently used among the antenna panels for transmitting PUSCH.
  • the transmission beam is the transmission beam of the PUSCH resource with the smallest port number of the PUSCH demodulation reference signal (DMRS) among the multiple PUSCH resources configured with the antenna panel 1.
  • DMRS PUSCH demodulation reference signal
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 2 among the antenna panels for transmitting SRS.
  • the transmission beam is a transmission beam that identifies the smallest SRS resource among the multiple SRS resources configured with the antenna panel 2.
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 3 among the antenna panels for receiving CSI-RS.
  • the transmission beam is a transmission beam corresponding to the reception beam with the smallest CSI-RS resource among the multiple CSI-RS resources configured with the antenna panel 3.
  • the antenna panel corresponding to the transmitting beam is the most recently used antenna panel 4 among the antenna panels for receiving PDCCH.
  • the transmitting beam is the transmitting beam corresponding to the receiving beam that identifies the smallest PDCCH resource among the multiple PDCCH resources configured with the antenna panel 4, for example, the control resource set (CORESET) identifies the smallest CORESET
  • the receive beam corresponds to the transmit beam.
  • the antenna panel corresponding to the transmitting beam is the antenna panel 5 that is most recently used among the antenna panels for receiving PDSCH.
  • the transmission beam is the transmission beam corresponding to the reception beam of the smallest PDSCH resource among the multiple PDSCH resources configured with the antenna panel 5, for example, the transmission corresponding to the reception beam of the PDSCH resource with the smallest PDSCH DMRS port number Beam.
  • Step 1 The network device sends configuration information, which is used to configure one or more PUCCH resources.
  • the terminal device receives the configuration information and can determine the transmission beam corresponding to the PUCCH resource according to the configuration information.
  • Step 2 The terminal equipment and the network equipment communicate normally, including but not limited to monitoring PDCCH, measuring and reporting CSI-RS, sending SRS, sending PUCCH, and transmitting PDSCH and/or PUSCH according to the configuration.
  • Step 3 The network device sends DCI to the terminal device in the downlink time slot n to schedule the PUSCH.
  • the DCI does not include beam-related indication information and antenna panel-related indication information.
  • the terminal device receives the DCI, and n is an integer greater than or equal to zero.
  • Step 4 The terminal equipment and the network equipment respectively determine the transmission beam of the PUSCH, use the transmission beam to transmit the PUSCH in the uplink time slot m, and the network equipment uses the reception beam corresponding to the transmission beam to receive the PUSCH, where m is an integer greater than or equal to 0.
  • ⁇ _UL and ⁇ _DL respectively represent the system parameters of the uplink PUSCH and the system parameters of the downlink DCI.
  • the transmission beam of the PUSCH is the transmission beam of the PUCCH resource that has been used recently
  • the recently used PUCCH resource is the PUCCH resource corresponding to the PUCCH that the terminal device has recently transmitted. It should be understood that if there are multiple PUCCH resources used last time, the terminal device may select the PUCCH resource with the largest or smallest ID among them.
  • the time interval between the last time slot and the current time cannot be too large, otherwise the antenna panel may have been closed and in an inactive state. If you want to transmit PUSCH again, you need to activate the closed antenna panel. It takes some time.
  • x 1 and/or y 1 may be predefined by a protocol or configured by a network device. If the time interval between the time of the last PUCCH transmission and the current time (n or m) is greater than x 1 or y 1 , the PUCCH transmission beam can refer to the PUCCH resource with the smallest ID among all PUCCH resources configured with the transmission beam, or, The transmission beam of the PUSCH may refer to the transmission beam determined in the random access process, which is not limited in the embodiment of the present application.
  • This implementation mode can ensure that the terminal device uses the antenna panel currently in the active state to transmit PUSCH, without switching the antenna panel, and can avoid the problem of frequent switching and too late switching of the antenna panel of the terminal device.
  • the PUSCH transmission beam is the transmission beam of the PUCCH resource to be used recently, and the PUCCH resource to be used recently is the PUCCH resource corresponding to the PUCCH to be transmitted last time by the terminal device. It should be understood that if there are multiple PUCCH resources to be sent last time, the terminal device may select the PUCCH resource with the largest or smallest ID among them.
  • the time interval between the last time slot and the current time cannot be too large, otherwise the antenna panel may not be activated.
  • the inactive antenna panel needs to be activated in advance. Certain time.
  • x 2 and/or y 2 may be predefined by a protocol or configured by a network device. If the time interval between the last PUCCH to be sent and the current moment (n or m) is greater than x 2 or y 2 , the PUCCH transmission beam can refer to the PUCCH resource with the smallest ID among all PUCCH resources configured with the transmission beam, or The transmission beam of the PUSCH may refer to the transmission beam determined in the random access process, which is not limited in the embodiment of the present application.
  • This implementation can ensure that after the terminal device switches the antenna panel to send the PUSCH, it does not need to switch to send the next PUCCH to be transmitted, and can also avoid the frequent switching of the antenna panel of the terminal device and the problem of too late to switch.
  • the transmit antenna panel of the PUSCH may be the antenna panel of the recently used PUCCH resource.
  • the transmission beam of the PUSCH may be the transmission beam of the PUCCH resource with the largest or smallest ID.
  • the above-mentioned “recently used” refers to the antenna panel that the terminal device has recently used.
  • the transmit antenna panel of the PUSCH may be the antenna panel of the PUCCH resource to be used recently.
  • the transmission beam of the PUSCH may be the transmission beam of the PUCCH resource with the largest or smallest ID.
  • the above-mentioned “recently to be used” is the antenna panel that the terminal device will use last time.
  • the above antenna panel may be an uplink antenna panel or a downlink antenna panel, for example, an antenna panel used by a terminal device to receive PDCCH, CSI-RS, or PDSCH.
  • the terminal device can preferentially select the recently used uplink antenna panel to transmit PUSCH. If the recently used uplink antenna panel is not activated, the terminal device can select the recently used downlink antenna The panel sends PUSCH. As shown in Figure 3, the terminal device uses antenna panel 1 to send PUCCH resource 1, and antenna panel 2 to send PUCCH resource 2, that is, antenna panel 1 and antenna panel 2 are uplink antenna panels, and antenna panel 2 is the terminal device recently used The uplink antenna panel.
  • the terminal device can first determine whether the antenna panel 2 is in the active state. If the antenna panel 2 is in the active state, the terminal device can use the antenna panel 2 to transmit the PUSCH. If the antenna panel 2 is in an inactive state, the terminal device can use the recently used downlink antenna panel to transmit PUSCH. It should be understood that the downlink antenna panel may be determined from the downlink antenna panel in the activated state.
  • FIG. 4 shows a data transmission device 400 provided by an embodiment of the present application.
  • the apparatus 400 may be a terminal device or a chip in the terminal device.
  • the device 400 may be a network device or a chip in the network device.
  • the device 400 includes a processing unit 410 and a transceiver unit 420.
  • the apparatus 400 is configured to execute various processes and steps corresponding to the terminal device in the above method 200.
  • the processing unit 410 is configured to: determine the transmission beam of the first uplink channel; the transceiving unit 420 is configured to: use the transmission beam to transmit the first uplink channel; wherein, the transmission beam is the most recently used by the device The transmitting beam or the transmitting beam to be used recently; and/or, the antenna panel corresponding to the transmitting beam is the antenna panel used by the device recently or the antenna panel to be used recently.
  • the antenna panel corresponding to the transmitting beam is the antenna panel that the device has used recently or the antenna panel that will be used recently, which can be understood as: the transmitting beam is the beam corresponding to the antenna panel that the device has used recently or will be used recently. The beam corresponding to the antenna panel used.
  • the transmission beam is a physical uplink control channel PUCCH resource recently used by the apparatus or a transmission beam corresponding to a PUCCH resource to be used recently.
  • the transmission beam is the transmission beam corresponding to the PUCCH resource with the smallest identifier ID among the multiple PUCCH resources .
  • the transmission beam is the transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the device has recently used; or, if the uplink antenna panel that the device has recently used If the antenna panel is in an inactive state, the transmit beam is the beam corresponding to the downlink antenna panel that the device has recently used.
  • the processing unit 410 is further configured to: determine whether the uplink antenna panel recently used by the device is in the active state; if the uplink antenna panel recently used by the device is in the active state, determine the transmit beam The corresponding antenna panel is the most recently used uplink antenna panel of the device; or, if the most recently used uplink antenna panel of the device is in an inactive state, it is determined that the antenna panel corresponding to the transmitting beam is the most recently used antenna panel of the device Downstream antenna panel.
  • the transceiving unit 420 is further configured to: receive control information from a network device, where the control information is used to schedule the first uplink channel, and the control information does not include instructions for indicating the first uplink channel.
  • Channel's transmit beam information.
  • the apparatus 400 is configured to execute each process and step corresponding to the network device in the above method 200.
  • the processing unit 410 is configured to determine the transmission beam of the first uplink channel; the transceiving unit 420 is configured to: use the reception beam corresponding to the transmission beam to receive the first uplink channel; wherein the transmission beam is a terminal device
  • the recently used transmitting beam or the transmitting beam to be used recently; and/or, the antenna panel corresponding to the transmitting beam is the antenna panel used recently or the antenna panel to be used recently by the terminal device.
  • the transmission beam is a transmission beam corresponding to a physical uplink control channel PUCCH resource recently used by the terminal device or a PUCCH resource to be used recently.
  • the transmission beam is the transmission corresponding to the PUCCH resource with the smallest identifier ID among the multiple PUCCH resources Beam.
  • the transmission beam is the transmission beam corresponding to the PUCCH resource with the smallest ID among the multiple PUCCH resources.
  • the transmit beam is the beam corresponding to the uplink antenna panel that the terminal device has recently used; or, if the terminal device has recently used it If the previously used uplink antenna panel is in an inactive state, the transmit beam is a beam corresponding to the downlink antenna panel that the terminal device has recently used.
  • the processing unit 410 is further configured to: determine whether the uplink antenna panel that the terminal device has recently used is in the active state; if the uplink antenna panel that the terminal device has recently used is in the active state, determine the The antenna panel corresponding to the transmit beam is the uplink antenna panel that the terminal device has recently used; or, if the uplink antenna panel that the terminal device has recently used is in an inactive state, it is determined that the antenna panel corresponding to the transmit beam is all The downlink antenna panel that the terminal device has recently used.
  • the transceiving unit 420 is further configured to send control information to the terminal device, where the control information is used to schedule the first uplink channel, and the control information does not include information used to indicate the first uplink channel Send beam information.
  • the device 400 here is embodied in the form of a functional unit.
  • the term "unit” here can refer to application specific integrated circuit (application specific integrated circuit, ASIC), electronic circuit, processor for executing one or more software or firmware programs (such as shared processor, proprietary processor or group Processor, etc.) and memory, merge logic circuits and/or other suitable components that support the described functions.
  • ASIC application specific integrated circuit
  • the apparatus 400 may be specifically a terminal device or a network device in the foregoing embodiment, and the apparatus 400 may be used to execute each of the terminal devices or network devices in the foregoing method embodiment. To avoid repetition, the process and/or steps will not be repeated here.
  • the apparatus 400 of each of the foregoing solutions has the function of implementing the corresponding steps performed by the terminal device or the network device in the foregoing method; the function may be implemented by hardware, or may be implemented by hardware executing corresponding software.
  • the hardware or software includes one or more modules corresponding to the above-mentioned functions.
  • the transceiving unit 420 may include a transmitting unit and a receiving unit.
  • the transmitting unit may be used to implement various steps and/or processes for performing the transmitting action corresponding to the transceiving unit, and the receiving unit may be used to implement the corresponding The steps and/or processes used to perform the receiving action.
  • the sending unit may be replaced by a transmitter, and the receiving unit may be replaced by a receiver, respectively performing the transceiver operations and related processing operations in each method embodiment.
  • the device 400 in FIG. 4 may also be a chip or a chip system, for example, a system on chip (system on chip, SoC).
  • the receiving unit and the sending unit may be the transceiver circuit of the chip, which is not limited here.
  • FIG. 5 shows another data transmission device 500 provided by an embodiment of the present application.
  • the device 500 includes a processor 510, a transceiver 520, and a memory 530.
  • the processor 510, the transceiver 520, and the memory 530 communicate with each other through an internal connection path.
  • the memory 530 is used to store instructions, and the processor 510 is used to execute instructions stored in the memory 530 to control the transceiver 520 to send signals and / Or receive signal.
  • the apparatus 500 is configured to execute each process and step corresponding to the terminal device in the above method 200.
  • the processor 510 is configured to: determine the transmission beam of the first uplink channel; use the transmission beam to transmit the first uplink channel through the transceiver 520;
  • the transmission beam is a transmission beam that the device has used recently or a transmission beam that will be used recently; and/or, the antenna panel corresponding to the transmission beam is an antenna panel that the device has used recently or will be used recently Antenna panel.
  • the apparatus 500 is configured to execute various processes and steps corresponding to the network equipment in the above method 200.
  • the processor 510 is configured to: determine the transmission beam of the first uplink channel; adopt a reception beam corresponding to the transmission beam, and receive the first uplink channel through the transceiver 520;
  • the transmission beam is a transmission beam that the terminal device has used recently or a transmission beam that will be used recently; and/or, the antenna panel corresponding to the transmission beam is an antenna panel that the terminal device has recently used or will be used recently Antenna panel.
  • the apparatus 500 may specifically be a terminal device or a network device in the foregoing embodiment, and may be used to execute various steps and/or processes corresponding to the terminal device or the network device in the foregoing method embodiment.
  • the memory 530 may include a read-only memory and a random access memory, and provide instructions and data to the processor. A part of the memory may also include a non-volatile random access memory.
  • the memory can also store device type information.
  • the processor 510 may be used to execute instructions stored in the memory, and when the processor 510 executes the instructions stored in the memory, the processor 510 is configured to execute each of the foregoing method embodiments corresponding to the terminal device or the network device. Steps and/or processes.
  • the transceiver 520 may include a transmitter and a receiver, and the transmitter may be used to implement various steps and/or processes for performing the sending action corresponding to the above transceiver, and the receiver may be used to implement the corresponding use of the above transceiver. To perform the steps and/or processes of the receiving action.
  • the processor of the above-mentioned device may be a central processing unit (CPU), and the processor may also be other general-purpose processors, digital signal processors (DSP), or application-specific integrated circuits. (ASIC), Field Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the steps of the above method can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed by a combination of hardware and software units in the processor.
  • the software unit may be located in a mature storage medium in the field such as random access memory, flash memory, read-only memory, programmable read-only memory, or electrically erasable programmable memory, registers.
  • the storage medium is located in the memory, and the processor executes the instructions in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, it will not be described in detail here.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of the units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or It can be integrated into another system, or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments of the present application.
  • the functional units in the various embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.
  • the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
  • the technical solution of this application is essentially or the part that contributes to the existing technology, or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium It includes several instructions to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in each embodiment of the present application.
  • the aforementioned storage media include: U disk, mobile hard disk, read-only memory (read-only memory, ROM), random access memory (random access memory, RAM), magnetic disk or optical disk and other media that can store program code .

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Abstract

本申请提供了一种数据传输方法和装置，该方法包括：终端设备和网络设备分别确定上行信道的发送波束；该终端设备采用该发送波束发送该上行信道，则对应地，该网络设备采用与该发送波束对应的接收波束接收该上行信道；其中，该发送波束为该终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，该发送波束为该终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。本申请实施例的数据传输方法和装置，有利于避免终端设备的天线面板的频繁切换和来不及切换的问题，进而提高数据传输性能。

Description

数据传输方法和装置
本申请要求于2019年3月20日提交中国专利局、申请号为201910213182.3、申请名称为“数据传输方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信领域，特别地，涉及通信领域中的一种数据传输方法和装置。
背景技术
在某些通信系统中，例如，第五代(5th generation，5G)通信系统的新无线接入技术(new radio access technology，NR)中，为了在高频场景下对抗路径损耗，发送端和接收端可分别通过波束赋形(beamforming)来获得增益。发送端和接收端可通过预先确定的波束配对关系来收发信号。
由于波束具有一定的空间指向性，为了满足广域覆盖，终端设备可能配置多个天线面板(antenna panel)，从而覆盖多个不同的方向。波束可以通过天线面板接收或发送数据。终端设备在同一时间只使用一个天线面板，该终端设备的其他天线面板可能处于休眠状态(又称为未激活状态)。一个天线面板从休眠状态转换到激活状态需要一定的时间，例如2毫秒～3毫秒。
一个带宽部分(bandwidth part，BWP)可以配置多个物理上行控制信道(physical uplink control channel，PUCCH)资源，其中，每个PUCCH资源有可以有不同的发送波束，且这些不同的发送波束可能是由不同的天线面板形成的。网络设备会通过下行控制信息(downlink control information，DCI)调度终端设备传输物理上行共享信道(physical uplink shared channel，PUSCH)。一种确定PUSCH的发送波束的方法是，将多个PUCCH资源中标识ID最小的PUCCH资源的发送波束作为PUSCH的发送波束。由于终端设备需要切换波束时，可能需要先切换天线面板，再切换到该天线面板上相应的波束来收发信号。因此，这样可能造成终端设备的天线面板需要频繁切换的问题，若进一步考虑到天线面板从休眠状态到激活状态的转换时间，有可能终端设备还未切换天线面板，被调度的资源就已经到达，即导致终端设备的天线面板来不及切换的问题。
发明内容
本申请提供一种数据传输方法和装置，有利于避免终端设备的天线面板的频繁切换和来不及切换的问题，进而提高数据传输性能。
第一方面，提供了一种数据传输方法，包括：终端设备确定上行信道的发送波束；所述终端设备采用所述发送波束发送所述上行信道；其中，所述发送波束为所述终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板 为所述终端设备最近使用过的天线面板或最近将要使用的天线面板。
本申请实施例的数据传输方法，通过将终端设备最近使用过的天线面板或最近将要使用的天线面板作为该终端设备发送上行信道的发送波束对应的天线面板，有利于避免终端设备的天线面板的频繁切换和来不及切换的问题，进而提高数据传输性能。
具体地，发送波束可以为终端设备最近使用过的发送波束，那么发送波束对应的天线面板即为该终端设备最近使用过的天线面板，发送波束为终端设备最近将要使用的发送波束，那么发送波束对应的天线面板即为该终端设备最近将要使用的天线面板。但反过来不一定成立，发送波束对应的天线面板为该终端设备最近使用过的天线面板，但该天线面板可以形成多个波束，上行信道的发送波束不一定是终端设备最近使用过的那一个。同样地，发送波束对应的天线面板为该终端设备最近将要使用的天线面板，但该天线面板可以形成多个波束，上行信道的发送波束不一定是终端设备最近将要使用的那一个。
在本实施例中，发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，也可以理解为：发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
应理解，天线面板对应的波束可以是一个波束，也可以是多个波束(即波束的集合)，且该一个或多个波束可以是网络设备通过波束指示为终端设备配置的，也可以是终端设备自主确定的，例如，终端设备可以记录该天线面板用于接收和/或发送的波束，或者，终端设备可以自己确定该天线面板对应的波束并将其上报给网络设备。由于一个天线面板能够用于接收和/或发送的波束可以是多个，上述终端设备最终使用的“天线面板对应的波束”可以是该多个波束中的任意一个波束，也可以是该多个波束中信号质量最高的一个波束，也可以采用本申请后续实施例中的方法，即选择该多个波束中标识ID最小的PUCCH资源对应的发送波束，本申请实施例对此不作限定。
应理解，上述上行信道在本文也可以称为第一上行信道，后面均采用第一上行信道进行描述。该第一上行信道可以是上行数据信道，例如PUSCH，也可以是上行控制信道，例如PUCCH。上述发送波束也可以称为“默认发送波束”、“发射波束”、“默认发射波束”等，本申请对其名称不作限定。
还应理解，本申请实施例所述的传输时间单元是指已经传输(包括发送和/或接收)了数据或信号的时间单元，或者将要传输数据或信号的时间单元。上述“最近使用过的”波束或天线面板表示在终端设备发送该第一上行信道之前的最后一个传输时间单元(例如，传输数据或信号的最后一个时隙)对应的波束或天线面板，换句话说，“最近使用过的”波束或天线面板对应的时间单元为在发送第一上行信道的时间单元之前、已经传输了数据或信号、且与发送第一上行信道的时间单元的时间间隔最小的时间单元；上述“最近将要使用的”波束或天线面板表示在终端设备发送该第一上行信道之后的第一个传输时间单元(例如，传输数据或信号的第一个时隙)对应的波束或天线面板，换句话说，“最近将要使用的”波束或天线面板对应的时间单元为在发送第一上行信道的时间单元之后、将要传输数据或信号、且与发送第一上行信道的时间单元的时间间隔最小的时间单元。一般情况下，“最近将要使用的”波束或天线面板是网络设备通过信令为终端设备配置的。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备确定所述最近使用过的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的 时间单元之间的第一时间间隔，以及所述最近将要使用的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的时间单元之间的第二时间间隔；所述终端设备将所述第一时间间隔和所述第二时间间隔中较小的时间间隔对应的发送波束或天线面板作为所述发送波束或所述发送波束对应的天线面板。
这样，终端设备能结合具体情况，从最近使用过的发送波束或天线面板和最近将要使用的发送波束或天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。
结合第一方面，在第一方面的某些实现方式中，上述“最近使用过”所对应的时隙和发送PUSCH的当前时刻之间的时间间隔不能太大，否则天线面板可能已经关闭，处于未激活状态，若要再传输PUSCH，还需要将已关闭的天线面板激活，需要消耗一定时间。同理，上述“最近将要使用”所对应的时隙和发送PUSCH的当前时刻之间的时间间隔不能太大，否则天线面板可能还未激活，若要传输PUSCH，还需要将处于未激活状态的天线面板提前激活，需要消耗一定时间。上述时间间隔的最大值可以是协议约定的，或者网络设备通过信令配置的。
结合第一方面，在第一方面的某些实现方式中，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
换句话说，该发送波束可以为该终端设备最近使用过的PUCCH资源对应的发送波束，或者，该发送波束可以为该终端设备最近将要使用的PUCCH资源对应的发送波束。应理解，PUCCH资源是网络设备通过信令为终端设备配置的。
结合第一方面，在第一方面的某些实现方式中，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
具体地，上述发送波束为多个PUCCH资源中ID最小或最大的PUCCH资源对应的发送波束。例如，终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括PUCCH资源1、PUCCH资源2和PUCCH资源3，那么该终端设备可以确定第一上行信道的发送波束为PUCCH资源1对应的发送波束，或者，该终端设备可以确定第一上行信道的发送波束为PUCCH资源3对应的发送波束。
结合第一方面，在第一方面的某些实现方式中，若所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
应理解，上述ID最小仅仅是网络设备和终端设备采用默认的方式确定发送波束所定的一种规则，终端设备还可以参考ID最大或者指定ID的PUCCH资源，本申请实施例对此不作限定。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备判断所述终端设备最近使用过的上行天线面板是否处于激活状态；若所述终端设备最近使用过的上行天线面板处于激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的上行天线面板；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近使 用过的下行天线面板。
换句话说，若所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
应理解，本文所述的上行天线面板表示上行传输所使用的天线面板，下行天线面板表示下行传输所使用的天线面板。
具体地，考虑到天线面板存在一定的保活时长(即天线面板保持激活状态的时间长度)，在确定了参考最近使用过的天线面板的情况下，终端设备可以判断该最近使用过的上行天线面板是否处于激活状态。若该最近使用过的上行天线面板处于激活状态，该终端设备可以使用该最近使用过的上行天线面板。若该最近使用过的上行天线面板处于未激活状态，该终端设备可以使用最近使用过的下行天线面板。进一步地，该终端设备可以在处于激活状态的下行天线面板中，选择一个最近使用过的下行天线面板。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备确定所述终端设备最近一次上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第三时间间隔；所述终端设备确定所述终端设备最近一次下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第四时间间隔；所述终端设备将所述第三时间间隔和所述第四时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
这样，终端设备能结合具体情况，从最近使用过的上行天线面板和最近使用过的下行天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备判断所述终端设备最近将要使用的上行天线面板是否处于激活状态；若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的上行天线面板；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的下行天线面板。
换句话说，若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近将要使用的上行天线面板对应的波束；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近将要使用的下行天线面板对应的波束。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备确定所述终端设备最近将要上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第五时间间隔；所述终端设备确定所述终端设备最近将要下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第六时间间隔；所述终端设备将所述第五时间间隔和所述第六时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
这样，终端设备能结合具体情况，从最近将要使用的上行天线面板和最近将要使用的 下行天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。
应理解，终端设备还可以从上述第三时间间隔、第四时间间隔、第五时间间隔以及第六时间间隔中选择一个最小的时间间隔，将该最小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备向网络设备发送能力信息，所述能力信息用于表示所述终端设备的上行天线面板能够保持激活状态的时长。
具体地，上述终端设备可以向网络设备发送用于表示终端设备上行天线面板的保活时长的能力信息，该网络设备可以根据该能力信息，确定终端设备的上行天线面板是否处于激活状态，使得网络设备和终端设备之间同步发送天线面板的状态。
结合第一方面，在第一方面的某些实现方式中，所述方法还包括：所述终端设备接收来自网络设备的第一配置信息，所述第一配置信息用于指示要求所述终端设备的上行天线面板保持激活状态的时长；所述终端设备判断所述终端设备最近使用过的上行天线面板是否处于激活状态，包括：所述终端设备根据所述第一配置信息，判断所述终端设备最近使用过的上行天线面板是否处于激活状态。
具体地，上述网络设备可以向终端设备发送用于表示要求终端设备上行天线面板的保活时长的第一配置信息。换句话说，该第一配置信息要求终端设备在上行天线面板激活之后必须维持该上行天线面板激活该第一配置信息所指示的时长。终端设备即可根据该第一配置信息，确定该终端设备的上行天线面板是否处于激活状态，使得网络设备和终端设备之间同步发送天线面板的状态。
结合第一方面，在第一方面的某些实现方式中，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述终端设备接收来自网络设备的控制信息，所述控制信息用于调度所述第一上行信道，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息和用于指示所述第一上行信道的发送波束对应的天线面板的信息。
具体地，上述第一上行信道是网络设备通过控制信息调度的，例如，网络设备通过DCI调度PUSCH的传输。因此，在本申请实施例中，该控制信息不包括用于指示第一上行信道的发送波束的信息和用于指示该第一上行信道的发送波束对应的天线面板的信息。即本申请实施例并未显式指示第一上行信道的发送波束，而是采用隐式确定的方法，使得网络设备和终端设备采用默认的收发波束对进行第一上行信道的传输，避免了终端设备的天线面板的频繁切换。
结合第一方面，在第一方面的某些实现方式中，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述终端设备接收来自网络设备的控制信息，所述控制信息用于调度所述第一上行信道，所述控制信息包括用于指示所述第一上行信道的发送波束对应的天线面板的信息，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息。
具体地，上述控制信息指示了终端设备发送第一上行信道的天线面板，则该终端设备可以采用该控制信息所指示的天线面板发送该第一上行信道。若存在有多个PUCCH资源配置有该控制信息所指示的天线面板，则该第一上行信道的发送波束可以参考该多个 PUCCH资源中ID最小的PUCCH资源，即该第一上行信道的发送波束为该多个PUCCH资源中ID最小的PUCCH资源对应的发送波束。
结合第一方面，在第一方面的某些实现方式中，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述终端设备接收来自网络设备的第二配置信息，所述第二配置信息用于配置第二上行信道的资源，所述资源包括时域资源、频域资源、所述第二上行信道的发送波束以及所述第二上行信道的发送波束对应的天线面板中的至少一个；所述终端设备确定第一上行信道的发送波束，包括：所述终端设备根据所述第二配置信息，确定所述第一上行信道的发送波束。
具体地，网络设备可以向终端设备发送第二配置信息配置第二上行信道的资源，该第二上行信道可以是上行控制信道，例如PUCCH。该第二上行信道的资源可以包括该第二上行信道的时域资源、频域资源、发送波束、发送波束对应的天线面板(也称为发送天线面板)中的至少一个。
示例性地，网络设备可以通过一个第二配置信息为终端设备配置一个PUCCH资源或者多个PUCCH资源，也可以通过多个第二配置信息为终端设备配置多个PUCCH资源，具体通过该多个第二配置信息中的每个第二配置信息为终端设备配置一个PUCCH资源，本申请实施例对此不作限定。
第二方面，提供了一种数据传输方法，包括：网络设备确定第一上行信道的发送波束；所述网络设备采用所述发送波束对应的接收波束接收所述第一上行信道；其中，所述发送波束为终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备确定所述最近使用过的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的时间单元之间的第一时间间隔，以及所述最近将要使用的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的时间单元之间的第二时间间隔；所述网络设备将所述第一时间间隔和所述第二时间间隔中较小的时间间隔对应的发送波束或天线面板作为所述发送波束或所述发送波束对应的天线面板。
结合第二方面，在第二方面的某些实现方式中，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
结合第二方面，在第二方面的某些实现方式中，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
结合第二方面，在第二方面的某些实现方式中，若所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备判断所述终端设备最近使用过的上行天线面板是否处于激活状态；若所述终端设备最近使用过的上行天线面板处于激活状态，所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的上行天线面板；或，若所述终端设备最近使用过的上行天线面板处于 未激活状态，所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的下行天线面板。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备确定所述终端设备最近一次上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第三时间间隔；所述网络设备确定所述终端设备最近一次下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第四时间间隔；所述网络设备将所述第三时间间隔和所述第四时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备判断所述终端设备最近将要使用的上行天线面板是否处于激活状态；若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的上行天线面板；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的下行天线面板。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备确定所述终端设备最近将要上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第五时间间隔；所述网络设备确定所述终端设备最近将要下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第六时间间隔；所述网络设备将所述第五时间间隔和所述第六时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备接收来自所述终端设备的能力信息，所述能力信息用于表示所述终端设备的上行天线面板能够保持激活状态的时长；所述网络设备判断所述最近使用过的上行天线面板是否处于激活状态，包括：所述网络设备根据所述能力信息，判断所述最近使用过的上行天线面板是否处于激活状态。
结合第二方面，在第二方面的某些实现方式中，所述方法还包括：所述网络设备向所述终端设备发送第一配置信息，所述第一配置信息用于表示要求所述终端设备的上行天线面板保持激活状态的时长。
结合第二方面，在第二方面的某些实现方式中，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述网络设备向终端设备发送控制信息，所述控制信息用于调度所述第一上行信道，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息。
结合第二方面，在第二方面的某些实现方式中，在所述网络设备确定第一上行信道的发送波束之前，所述方法还包括：所述网络设备向所述终端设备发送第二配置信息，所述第二配置信息用于配置第二上行信道的资源，所述资源包括时域资源、频域资源、所述第二上行信道的发送波束以及所述第二上行信道的发送波束对应的天线面板中的至少一个。
第三方面，提供了一种数据传输方法，包括：终端设备确定第一上行信道的发送波束；所述终端设备采用所述发送波束发送所述第一上行信道；其中，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源对应的发送波束。
结合第三方面，在第三方面的某些实现方式中，所述发送波束为所述PUCCH资源中ID最小的PUCCH资源对应的发送波束。
针对“最近使用过的”描述可以参考第一方面，这里不再赘述。
第四方面，提供了一种数据传输方法，包括：网络设备确定第一上行信道的发送波束；所述网络设备采用所述发送波束对应的接收波束接收所述第一上行信道；其中，所述发送波束为终端设备最近使用过的物理上行控制信道PUCCH资源对应的发送波束。
结合第四方面，在第四方面的某些实现方式中，所述发送波束为所述PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
针对“最近使用过的”描述可以参考第一方面，这里不再赘述。
第五方面，提供了另一种数据传输方法，包括：终端设备确定第一上行信道的发送波束；所述终端设备采用所述发送波束发送所述第一上行信道；其中，所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板。
结合第五方面，在第五方面的某些实现方式中，所述发送波束对应的天线面板为在使用PUCCH资源的天线面板中，最近使用过的天线面板。可选地，所述发送波束为在配置有使用PUCCH资源的天线面板中最近使用过的天线面板的多个PUCCH资源中，ID最小的PUCCH资源对应的发送波束。
结合第五方面，在第五方面的某些实现方式中，所述发送波束对应的天线面板为在使用第一资源的天线面板中，最近使用过的天线面板。可选地，所述发送波束为在配置有在使用第一资源的天线面板中最近使用过的天线面板的多个第一资源中，ID最小的第一资源对应的发送波束。可选地，该第一资源可以为PUSCH资源、SRS资源、CSI-RS资源、PDSCH资源、或者PDCCH资源。
示例性地，所述发送波束对应的天线面板为在发送PUSCH的天线面板中，最近使用的天线面板1。进一步地，所述发送波束为在配置有天线面板1的多个PUSCH资源中，PUSCH解调参考信号(demodulation reference signal，DMRS)的端口号最小的PUSCH资源的发送波束。
示例性地，所述发送波束对应的天线面板为在发送SRS的天线面板中，最近使用的天线面板2。进一步地，所述发送波束为在配置有天线面板2的多个SRS资源中，标识最小的SRS资源的发送波束。
示例性地，所述发送波束对应的天线面板为在接收CSI-RS的天线面板中，最近使用的天线面板3。进一步地，所述发送波束为在配置有天线面板3的多个CSI-RS资源中，标识最小的CSI-RS资源的接收波束对应的发送波束。
示例性地，所述发送波束对应的天线面板为在接收PDCCH的天线面板中，最近使用的天线面板4。进一步地，所述发送波束为在配置有天线面板4的多个PDCCH资源中，标识最小的PDCCH资源的接收波束对应的发送波束，例如，控制资源集(control resource set，CORESET)标识最小的CORESET的接收波束对应的发送波束。
示例性地，所述发送波束对应的天线面板为在接收PDSCH的天线面板中，最近使用的天线面板5。进一步地，所述发送波束为在配置有天线面板5的多个PDSCH资源中，标识最小的PDSCH资源的接收波束对应的发送波束，例如，PDSCH DMRS端口号最小的PDSCH资源的接收波束对应的发送波束。
针对“最近使用过的”描述可以参考第一方面，这里不再赘述。
第六方面，提供了另一种数据传输方法，包括：网络设备确定第一上行信道的发送波束；所述网络设备采用所述发送波束对应的接收波束接收所述第一上行信道；其中，所述发送波束对应的天线面板为终端设备最近使用过的天线面板。
结合第六方面，在第六方面的某些实现方式中，所述发送波束为配置有所述最近使用过的天线面板的PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
结合第六方面，在第六方面的某些实现方式中，所述发送波束为配置有所述最近使用过的天线面板的PUSCH、SRS、CSI-RS、PDSCH或PDCCH中标识最小的资源对应的发送波束。
针对“最近使用过的”描述可以参考第一方面，这里不再赘述。
第七方面，提供了一种数据传输装置，用于执行上述各方面中任一种可能的实现方式中的方法。具体地，该装置包括用于执行上述各方面中任一种可能的实现方式中的方法的单元。
第八方面，提供了一种数据传输装置，包括处理器，该处理器与存储器耦合，可用于执行存储器中的指令，以实现上述各方面中任一种可能实现方式中的方法。可选地，该通信装置还包括存储器。可选地，该通信装置还包括通信接口，处理器与通信接口耦合。
在一种实现方式中，该数据传输装置为终端设备。当该数据传输装置为终端设备时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该数据传输装置为配置于终端设备中的芯片。当该数据传输装置为配置于终端设备中的芯片时，所述通信接口可以是输入/输出接口。
在一种实现方式中，该数据传输装置为网络设备。当该数据传输装置为网络设备时，所述通信接口可以是收发器，或，输入/输出接口。
在另一种实现方式中，该数据传输装置为配置于网络设备中的芯片。当该数据传输装置为配置于网络设备中的芯片时，所述通信接口可以是输入/输出接口。
可选地，所述收发器可以为收发电路。可选地，所述输入/输出接口可以为输入/输出电路。
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。所述处理电路用于通过所述输入电路接收信号，并通过所述输出电路发射信号，使得所述处理器执行上述各方面中任一种可能实现方式中的方法。
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，提供了一种处理装置，包括处理器和存储器。该处理器用于读取存储器中存储的指令，并可通过接收器接收信号，通过发射器发射信号，以执行上述各方面中任一种可能实现方式中的方法。
可选地，所述处理器为一个或多个，所述存储器为一个或多个。
可选地，所述存储器可以与所述处理器集成在一起，或者所述存储器与处理器分离设置。
在具体实现过程中，存储器可以为非瞬时性(non-transitory)存储器，例如只读存储器(read only memory，ROM)，其可以与处理器集成在同一块芯片上，也可以分别设置在不同的芯片上，本申请实施例对存储器的类型以及存储器与处理器的设置方式不做限定。
应理解，相关的数据交互过程例如发送指示信息可以为从处理器输出指示信息的过程，接收能力信息可以为处理器接收输入能力信息的过程。具体地，处理输出的数据可以输出给发射器，处理器接收的输入数据可以来自接收器。其中，发射器和接收器可以统称为收发器。
上述第十方面中的处理装置可以是一个芯片，该处理器可以通过硬件来实现也可以通过软件来实现，当通过硬件实现时，该处理器可以是逻辑电路、集成电路等；当通过软件来实现时，该处理器可以是一个通用处理器，通过读取存储器中存储的软件代码来实现，该存储器可以集成在处理器中，可以位于该处理器之外，独立存在。
第十一方面，提供了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(也可以称为代码，或指令)，当所述计算机程序被运行时，使得计算机执行上述各方面中任一种可能实现方式中的方法。
第十二方面，提供了一种计算机可读介质，所述计算机可读介质存储有计算机程序(也可以称为代码，或指令)当其在计算机上运行时，使得计算机执行上述各方面中任一种可能实现方式中的方法。
第十三方面，提供了一种通信系统，包括前述的网络设备和终端设备。
附图说明
图1示出了本申请实施例的通信系统的示意图。
图2示出了本申请实施例的数据传输方法的示意性流程图。
图3示出了本申请实施例的天线面板的示意图。
图4示出了本申请实施例的数据传输装置的示意性框图。
图5示出了本申请实施例的另一数据传输装置的示意性框图。
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)等。
还应理解，本申请实施例的技术方案还可以应用于各种基于非正交多址接入技术的通信系统，例如稀疏码多址接入(sparse code multiple access，SCMA)系统，当然SCMA在通信领域也可以被称为其他名称；进一步地，本申请实施例的技术方案可以应用于采用非正交多址接入技术的多载波传输系统，例如采用非正交多址接入技术正交频分复用(orthogonal frequency division multiplexing，OFDM)、滤波器组多载波(filter bank multi-carrier，FBMC)、通用频分复用(generalized frequency division multiplexing，GFDM)、滤波正交频分复用(filtered-OFDM，F-OFDM)系统等。
为便于理解本申请实施例，首先结合图1详细说明适用于本申请实施例的通信系统。图1示出了适用于本申请实施例的发送和接收的方法和装置的通信系统的示意图。如图1所示，该通信系统100可以包括至少一个网络设备，例如图1所示的网络设备110；该通信系统100还可以包括至少一个终端设备，例如图1所示的终端设备120。网络设备110与终端设备120可通过无线链路通信。各通信设备，如网络设备110或终端设备120，可以配置多个天线，该多个天线可以包括至少一个用于发送信号的发射天线和至少一个用于接收信号的接收天线。另外，各通信设备还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)。因此，网络设备110与终端设备120可通过多天线技术通信。
本申请实施例中的终端设备可以经无线接入网(radio access network，RAN)与一个或多个核心网进行通信，该终端设备可称为接入终端、用户设备(user equipment，UE)、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。接入终端可以是蜂窝电话、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、个人数字处理(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、未来5G网络中的终端设备或者未来演进的公共陆地移动网络(public land mobile network，PLMN)中的终端设备等。
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(NodeB，NB)，还可以是LTE系统中的演进型基站(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，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，本申请实施例对此并不限定。例如，NR系统中的gNB，或，传输点(TRP或TP)，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。
在一些部署中，gNB可以包括集中式单元(centralized unit，CU)和DU。gNB还可以包括射频单元(radio unit，RU)。CU实现gNB的部分功能，DU实现gNB的部分功 能，比如，CU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。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+CU发送的。可以理解的是，网络设备可以为CU节点、或DU节点、或包括CU节点和DU节点的设备。此外，CU可以划分为接入网(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。
在本申请实施例中，终端设备或网络设备包括硬件层、运行在硬件层之上的操作系统层，以及运行在操作系统层上的应用层。该硬件层包括中央处理器(central processing unit，CPU)、内存管理单元(memory management unit，MMU)和内存(也称为主存)等硬件。该操作系统可以是任意一种或多种通过进程(process)实现业务处理的计算机操作系统，例如，Linux操作系统、Unix操作系统、Android操作系统、iOS操作系统或windows操作系统等。该应用层包含浏览器、通讯录、文字处理软件、即时通信软件等应用。并且，本申请实施例并未对本申请实施例提供的方法的执行主体的具体结构特别限定，只要能够通过运行记录有本申请实施例的提供的方法的代码的程序，以根据本申请实施例提供的方法进行通信即可，例如，本申请实施例提供的方法的执行主体可以是终端设备或网络设备，或者，是终端设备或网络设备中能够调用程序并执行程序的功能模块。
另外，本申请的各个方面或特征可以实现成方法、装置或使用标准编程和/或工程技术的制品。本申请中使用的术语“制品”涵盖可从任何计算机可读器件、载体或介质访问的计算机程序。例如，计算机可读介质可以包括，但不限于：磁存储器件(例如，硬盘、软盘或磁带等)，光盘(例如，压缩盘(compact disc，CD)、数字通用盘(digital versatile disc，DVD)等)，智能卡和闪存器件(例如，可擦写可编程只读存储器(erasable programmable read-only memory，EPROM)、卡、棒或钥匙驱动器等)。另外，本文描述的各种存储介质可代表用于存储信息的一个或多个设备和/或其它机器可读介质。术语“机器可读介质”可包括但不限于，无线信道和能够存储、包含和/或承载指令和/或数据的各种其它介质。
本申请实施例可以适用于LTE系统以及后续的演进系统如5G等，或其他采用各种无线接入技术的无线通信系统，如采用码分多址，频分多址，时分多址，正交频分多址，单载波频分多址等接入技术的系统，尤其适用于需要信道信息反馈和/或应用二级预编码技术的场景，例如应用Massive MIMO技术的无线网络、应用分布式天线技术的无线网络等。
应理解，多输入输出(multiple-input multiple-output，MIMO)技术是指在发送端设备和接收端设备分别使用多个发射天线和接收天线，使信号通过发送端设备与接收端设备的多个天线传送和接收，从而改善通信质量。它能充分利用空间资源，通过多个天线实现多发多收，在不增加频谱资源和天线发射功率的情况下，可以成倍地提高系统信道容量。
为便于理解，下面先介绍本申请实施例涉及的相关术语。
1、波束(beam)
波束可以理解为空间滤波器(spatial filter)或空间参数(spatial parameters)。用于发送信号的波束可以称为发送波束(transmission beam，Tx beam)，可以为空间发送滤波器 (spatial domain transmit filter)或空间发送参数(spatial transmit parameters，spatial Tx parameters)；用于接收信号的波束可以称为接收波束(reception beam，Rx beam)，可以为空间接收滤波器(spatial domain receive filter)或空间接收参数(spatial receive parameters，spatial Rx parameters)。
形成波束的技术可以是波束赋形技术或者其他技术。例如，波束赋形技术具体可以为数字波束赋形技术、模拟波束赋形技术或者混合数字/模拟波束赋形技术等。发送波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。
在NR协议中，波束例如可以是空间滤波器(spatial filter)。但应理解，本申请并不排除在未来的协议中定义其他的术语来表示相同或相似的含义的可能。
2、天线面板(antenna panel)
天线面板简称面板(panel)。每个天线面板可以配置一个或多个接收波束，以及一个或多个发送波束。因此，天线面板也可以理解为波束组。通信设备，如终端设备或网络设备，可以通过天线面板上的接收波束接收信号，也可以通过天线面板上的发送波束发送信号。
具体地，网络设备与终端设备通过天线进行通信，即，终端设备与网络设备利用天线进行信号的接收与发送。终端设备和网络设备上都具有天线单元(antenna element)。多个天线单元可以集成在一个面板上，这个集成了天线单元的面板称为天线面板(也可用panel表示)。每个天线面板可产生一个或多个波束(beam)，即每个天线面板可以朝向一个或多个方向发送和接收信号。
天线面板还可表示为天线阵列(antenna array)或者天线子阵列(antenna subarray)。一个天线面板可以包括一个或多个天线阵列(天线子阵列)。一个天线面板可以由一个或多个晶振(oscillator)控制。一个射频电路可以驱动天线面板上的一个或多个天线单元。因此，一个天线面板可以由一个射频链路驱动，也可以由多个射频链路驱动。射频链路又可以称为接收通道和/或发送通道，接收机支路(receiver branch)等。因此，天线面板还可替换为射频链路或者驱动一个天线面板的多个射频链路或者由一个晶振控制的一个或多个射频链路。
天线面板还可以是一个逻辑概念，一个天线面板可以是一个逻辑实体，(即不体现物理天线结构)，例如是天线端口的集合，或者发送和/或接收波束的集合，或者一个发送和/或接收方向的集合。
在本申请实施例中，终端设备和网络设备可以通过面板标识ID来对天线面板进行区分。天线面板的标识可以是一个逻辑标识，也可以以参考信号资源集合标识(和/或同步信号块资源集合标识)体现，例如，探测参考信号(sounding reference signal，SRS)resource set ID、信道状态信息参考信号(channel state information reference signal，CSI-RS)resource set ID等，还可以是参考信号资源标识(和/或同步信号块资源标识)，例如SRS resource ID、CSI-RS resource ID等。当panel标识为参考信号资源或参考信号资源集合的标识时，若该标识为上行参考信号资源(或上行参考信号资源集合)，则该标识对应发送该上行参考信号资源(或上行参考信号资源集合)的上行发送天线面板或其对应的下行接收面板；若该标识为下行参考信号资源和/或同步信号资源，该标识对应接收该下行资源和/或同步信号 资源的下行接收面板或其对应的上行发送面板。
本文中提及的网络设备向终端设备发送的信令指示可以是如下任一种或多种(例如它们的组合)：RRC信令、媒体接入控制控制元素(media access control control element，MAC CE)信令、DCI信令。
本文中提及的信令还可以包括广播信道信息、系统消息、系统消息更新、剩余系统消息。本文提及的终端设备向网络设备发送的信息可以是上行RRC信令、上行MAC-CE信令、上行控制信息(uplink control information，UCI)信令中的一种或多种(例如它们的组合)。
根据长期演进LTE/NR的协议，在物理层，上行通信包括上行物理信道和上行信号的传输。其中上行物理信道包括随机接入信道(random access channel，PRACH)、上行控制信道(physical uplink control channel，PUCCH)、上行数据信道(physical uplink shared channel，PUSCH)等，上行信号包括SRS、上行控制信道解调参考信号(PUCCH de-modulation reference signal，PUCCH-DMRS)、上行数据信道解调参考信号PUSCH-DMRS、上行相位噪声跟踪信号(phase noise tracking reference signal，PTRS)等。下行通信包括下行物理信道和下行信号的传输。其中下行物理信道包括广播信道(physical broadcast channel，PBCH)、下行控制信道(physical downlink control channel，PDCCH)、下行数据信道(physical downlink shared channel，PDSCH)等，下行信号包括主同步信号(primary synchronization signal，PSS)/辅同步信号(secondary synchronization signal，SSS)、下行控制信道解调参考信号PDCCH-DMRS、下行数据信道解调参考信号PDSCH-DMRS、下行PTRS、CSI-RS、小区信号(cell reference signal，CRS)(NR中没有)、精同步信号(time/frequency tracking reference signal，TRS)等。
为上述物理信道/信号都可以由网络设备用信令指示发送/接收天线面板，或者由终端设备推荐网络设备配置发送/接收天线面板，或者由协议预定义发送/接收天线面板。
下面简单介绍一下天线面板的配置方法。
以上行控制信道PUCCH为例，如果存在多个PUCCH资源/资源集合，网络设备可以为一个PUCCH资源/资源集合或者多个PUCCH资源/资源集合配置天线面板列表。可选地，网络设备可以为一个终端设备的所有PUCCH资源配置一个天线面板列表，网络设备也可以为一个终端设备的在一个频段(band)或者载波(cell)或者带宽部分(BWP)的所有PUCCH资源/资源集合配置一个天线面板列表。一个天线面板列表中有一个或多个天线面板标识。
应理解，上述配置方法也可以用于其他物理信道/信号。例如，对于下行控制信道，如果存在多个控制信道资源集合(control resource set,CORESET)或者搜索空间集合(search space set)，网络设备可以为一个CORESET/search space set配置天线面板列表。
可选地，天线面板列表可以由RRC信令配置。
可选地，天线面板的信息也可以配置在波束指示中，例如，上行波束指示(spatial relation)中，或者下行传输配置指示(transmission configuration indicator，TCI)中。可以理解的，波束指示的配置和激活方法可以用于天线面板的配置和激活，例如波束配置和激活代表了相应的天线面板的配置和激活。
进一步地，网络设备可以配置激活的天线面板。以上行控制信道PUCCH为例，网络 设备可以为一个PUCCH资源/资源集合激活一个或多个天线面板。网络设备也可以为多个PUCCH资源/资源集合激活一个或多个天线面板。
应理解，上述配置方法也可以用于其他物理信道/信号，此处不再赘述。
可选地，激活天线面板可以由MAC CE信令指示。
可选地，激活的天线面板可以是上述RRC信令配置的天线面板中的一个或多个。
可选地，该MAC CE信令的格式中包含以下内容：载波(cell)和/或带宽部分(BWP)标识、一个或多个PUCCH资源/资源集合的标识、天线面板的标识。其中，天线面板的标识可以是相对标识，也可以是绝对标识，还可以是{S 0，S 1，…，S n}的形式，n等于RRC配置的天线面板列表的大小。S 0为1表示RRC信令配置的天线面板列表中标识最低/最高/第一个/倒数第一个的天线面板被激活，S 1为1表示RRC信令配置的天线面板列表中标识第二低/第二高/第二个/倒数第二个的天线面板被激活，依此类推。S 0为0表示RRC信令配置的天线面板列表中标识最低/最高/第一个/倒数第一个的天线面板被去激活，S 1为0表示RRC信令配置的天线面板列表中标识第二低/第二高/第二个/倒数第二个的天线面板被去激活，依此类推。上述去激活可以理解为使天线面板处于休眠状态(本文又称为未激活状态)。
可选地，激活天线面板可以由DCI信令指示。另外，在DCI信令中指示天线面板的字段的比特长度可以由终端设备的能力确定，也可以由RRC信令中配置的天线面板列表的大小的决定，此处不作限定。
应理解，天线面板相同，本质上是使用的天线面板物理实体或者逻辑实体相同。具体可以体现为：天线面板标识相同，或者天线面板标识中携带的信息的全部或者部分相同。还可以体现为：天线面板标识相关联，或者天线面板标识中携带的信息的全部或部分相关联。其中，相关联可以指上下行发送/接收天线面板相关联，例如{发送天线面板#1，接收天线面板#1}是固定的发送接收对。相关联还可以指代表天线面板的参考信号/参考信号集合相关联，例如{CSI-RS resource set#1，SRS resource set#2}。这种关联关系可以是由网络设备通知，也可以由终端设备反馈，还可以通过协议预定义规则确定，本申请实施例对此不作限定。
3、波束配对关系
波束配对关系即，发送波束与接收波束之间的配对关系，也可以称为空间发送滤波器与空间接收滤波器之间的配对关系。在具有波束配对关系的发送波束和接收波束之间传输信号可以获得较大的波束赋形增益。
在一种实现方式中，发送端可通过波束扫描的方式发送参考信号，接收端也可通过波束扫描的方式接收参考信号。具体地，发送端可通过波束赋形的方式在空间形成不同指向性的波束，并可以在多个具有不同指向性的波束上轮询，以通过不同指向性的波束将参考信号发射出去，使得参考信号在发送波束所指向的方向上发射参考信号的功率可以达到最大。接收端也可通过波束赋形的方式在空间形成不同指向性的波束，并可以在多个具有不同指向性的波束上轮询，以通过不同指向性的波束接收参考信号，使得该接收端接收参考信号的功率在接收波束所指向的方向上可以达到最大。
通过遍历各发送波束和接收波束，接收端可基于接收到的参考信号进行信道测量，并将测量得到的结果通过信道状态信息(channel state information，CSI)上报发送端。例如， 接收端可以将参考信号接收功率(reference signal receiving power，RSRP)较大的部分参考信号资源上报给发送端，如上报参考信号资源的标识，以便发送端在传输数据或信令时采用信道质量较好的波束配对关系来收发信号。所述终端设备可以根据
4、空间关系(spatial relation，SR)
空间关系可以用于终端设备确定上行信号或上行信道的发送波束。
每个空间关系可以包括参考信号资源标识。其中，参考信号资源标识例如可以为以下任意一项：SSB索引(SSB-Index)、非零功率CSI-RS参考信号资源标识(NZP-CSI-RS-ResourceId)和探测参考信号资源标识(SRS Resource Id，SRI，其中，探测参考信号(sounding reference signal)简称为SRS)。
其中，参考信号资源标识指的是在波束训练过程中所使用的参考信号资源的标识。一个空间关系用于确定一个发送波束。终端设备可以在波束训练的过程中维护参考信号资源标识与发送波束的对应关系，网络设备可以在波束训练的过程中维护参考信号资源标识与接收波束的对应关系。通过参考信号资源标识，便可以建立起发送波束和接收波束之间的配对关系。
在此后的通信过程中，终端设备可以基于网络设备所指示的空间关系确定发送波束，网络设备可以基于同一空间关系确定接收波束。
此外，每个空间关系还可以包括功率控制信息。该功率控制信息例如可以包括以下至少一项：期望的接收功率、路损参考信号和路损补偿参数α。终端设备可以基于该功率控制信息确定使用怎样的发送功率发送上行信号。
应理解，这里所列举的空间关系中所包含的信息仅为示例，不应对本申请构成任何限定。例如，空间关系中还可以包括物理小区的索引(physical cell ID，PCI)、服务小区的索引(serve cell index，SCI)、带宽部分(band width part，BWP)标识(identifier，ID)等，这里对此不作详细说明。
在某些通信系统中，例如，第五代(5th generation，5G)通信系统的新无线接入技术(new radio access technology，NR)中，为了在高频场景下对抗路径损耗，发送端和接收端可分别通过波束赋形(beamforming)来获得增益。发送端和接收端可通过预先确定的波束配对关系来收发信号。
由于波束具有一定的空间指向性，为了满足广域覆盖，终端设备可能配置多个天线面板，从而覆盖多个不同的方向。波束可以通过天线面板接收或发送数据。终端设备在同一时间只使用一个天线面板，该终端设备的其他天线面板可能处于休眠状态(又称为关闭状态或者未激活状态)。一个天线面板从休眠状态转换到激活状态(又称为开启状态)需要一定的时间，例如2毫秒～3毫秒。一个BWP可以配置多个物理上行控制信道(physical uplink control channel，PUCCH)资源，其中，每个PUCCH资源有可以有不同的发送波束，且这些不同的发送波束可能是由不同的天线面板形成的。网络设备会通过下行控制信息(downlink control information，DCI)调度终端设备传输物理上行共享信道(physical uplink shared channel，PUSCH)。PUSCH的发送波束可以是由网络设备配置的，或者，由协议约定的。
一种确定PUSCH的发送波束的方法是，网络设备在上行调度(UL grant)中，携带一个指示信息来间接指示的，例如，协议R15中的DCI格式0_1中的SRI字段。该指示 信息标识了一个上行SRS资源，该SRS的发送波束和发送预编码矩阵则用于PUSCH的发送。该SRS的发送波束是由网络设备配置的。
如果网络设备在上行调度中没有明确指示上述指示信息，例如，在协议R15中网络设备通过DCI格式0_0进行上行调度，在这种情况下，一种确定PUSCH的发送波束的方法是，终端设备根据PUCCH的发送波束来确定PUSCH的发送波束，其中PUCCH的发送波束是网络设备配置的。具体地，终端设备可以将多个PUCCH资源中标识ID最小的PUCCH资源的发送波束作为PUSCH的发送波束。
在现有协议中，每个BWP可以配置多个PUCCH资源，每个PUCCH资源可以对应不同的发送波束，且不同的发送波束可能是由不同的天线面板形成的。由于终端设备需要切换波束时，可能需要切换天线面板，并且切换到该天线面板上相应的波束来收发信号。因此，在网络设备未显式指示发送波束的情况下，如果按照PUCCH资源ID最小的规则确定PUSCH的发送波束，可能造成终端设备的天线面板需要频繁切换的问题，若进一步考虑到天线面板从休眠状态到激活状态的转换时间，有可能终端设备还未切换天线面板，被调度的资源就已经到达，即导致终端设备的天线面板来不及切换的问题。
例如，两个PUCCH资源(PUCCH资源1和PUCCH资源2)分别配置了不同天线面板(天线面板1和天线面板2)产生的不同波束作为发送波束，假设PUCCH资源2使用较为频繁，天线面板2一直处于激活状态，PUCCH资源1对应的天线面板1由于省电等原因长期处于休眠状态或关闭状态(或者称为未激活状态)。在这种情况下，DCI格式0_0调度的PUSCH使用ID较小的PUCCH资源1的发送波束会造成不必要的天线面板的切换，并且天线面板1开启需要一段时间，如果DCI格式0_0调度的PUSCH比较紧急，例如DCI和PUSCH之间的时间间隔小于天线面板的开启时间，也会导致天线面板来不及切换，终端设备无法按照网络设备的调度发送PUSCH。
有鉴于此，本申请提供一种数据传输方法，有利于避免终端设备的天线面板的频繁切换和来不及切换的问题，进而提高数据传输性能。
需要说明的是，在有些情况下，将面板激活和面板切换统称为面板切换，面板激活的时延和面板切换的时延统称为面板切换的时延。本申请并不排除这种理解。下文示出的实施例，仅为便于理解，将面板激活和面板切换作为两个单独的概念来说明。而不应对本申请构成任何限定。
在介绍本申请实施例提供的方法之前，先做出以下几点说明。
第一，在本申请实施例中，“指示”可以包括直接指示和间接指示，也可以包括显式指示和隐式指示。将某一信息(如下文所述的配置信息)所指示的信息称为待指示信息，则具体实现过程中，对待指示信息进行指示的方式有很多种，例如但不限于，可以直接指示待指示信息，如待指示信息本身或者该待指示信息的索引等。也可以通过指示其他信息来间接指示待指示信息，其中该其他信息与待指示信息之间存在关联关系。还可以仅仅指示待指示信息的一部分，而待指示信息的其他部分则是已知的或者提前约定的。例如，还可以借助预先约定(例如协议规定)的各个信息的排列顺序来实现对特定信息的指示，从而在一定程度上降低指示开销。
第二，在下文示出的实施例中，各术语及英文缩略语，如下行控制信息(DCI)、媒体接入控制控制元素(MAC CE)、无线资源控制(RRC)、物理下行控制信道(physical  downlink control channel，PDCCH)、物理下行共享信道(physical downlink share channel，PDSCH)、物理上行控制信道(physical uplink control channel，PUCCH)、物理上行共享信道(physical uplink share channel，PUSCH)、信道状态信息参考信号(CSI-RS)、探测参考信号(SRS)等，均为方便描述而给出的示例性举例，不应对本申请构成任何限定。本申请并不排除在已有或未来的协议中定义其它能够实现相同或相似功能的术语的可能。
第三，在下文示出的实施例中第一、第二以及各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围。例如，区分不同的指示信息、不同的波束、不同的面板等。
第四，本申请实施例中涉及的“协议”可以是指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。
第五，“至少一个”是指一个或者多个，“多个”是指两个或两个以上。“和/或”，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的情况，其中A，B可以是单数或者复数。字符“/”一般表示前后关联对象是一种“或”的关系。“以下至少一项(个)”或其类似表达，是指的这些项中的任意组合，包括单项(个)或复数项(个)的任意组合。例如，a、b和c中的至少一项(个)，可以表示：a，或b，或c，或a和b，或a和c，或b和c，或a、b和c，其中a，b，c可以是单个，也可以是多个。
下面将结合附图详细说明本申请提供的数据传输方法和装置。
应理解，本申请的技术方案可以应用于无线通信系统中，例如，图1中所示的通信系统100。处于无线通信系统中的两个通信装置之间可具有无线通信连接关系，该两个通信装置中的一个通信装置可对应于图1中所示的终端设备120，如，可以为图1中所示的终端设备，也可以为配置于该终端设备中的芯片；该两个通信装置中的另一个通信装置可对应于图1中所示的网络设备110，如，可以为图1中所示的网络设备，也可以为配置于该网络设备中的芯片。
以下，不失一般性，以终端设备与网络设备之间的交互过程为例详细说明本申请实施例提供的信号传输方法。
图2是从设备交互的角度示出的本申请实施例提供的数据传输方法200的示意性流程图。如图所示，图2中示出的方法200可以包括步骤210至步骤230。下面结合附图对方法200做详细说明。
S210，终端设备确定上行信道的发送波束；
S220，网络设备确定上行信道的发送波束；
S230，所述终端设备采用所述发送波束发送所述上行信道；则对应地，所述网络设备采用与所述发送波束对应的接收波束接收所述上行信道。
其中，所述发送波束为所述终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板。
应理解，上述上行信道在本文也可以称为第一上行信道，后面均采用第一上行信道进行描述。该第一上行信道可以是上行数据信道，例如，PUSCH。上述发送波束也可以称为“默认发送波束”、“发射波束”、“默认发射波束”等，本申请对其名称不作限定。
在本实施例中，发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，也可以理解为：发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
应理解，天线面板对应的波束可以是一个波束，也可以是多个波束(即波束的集合)，且该一个或多个波束可以是网络设备通过波束指示为终端设备配置的，也可以是终端设备自主确定的，例如，终端设备可以记录该天线面板用于接收和/或发送的波束，或者，终端设备可以自己确定该天线面板对应的波束并将其上报给网络设备。由于一个天线面板能够用于接收和/或发送的波束可以是多个，上述终端设备最终使用的“天线面板对应的波束”可以是该多个波束中的任意一个波束，也可以是该多个波束中信号质量最高的一个波束，也可以采用本申请后续实施例中的方法，即选择该多个波束中标识ID最小的PUCCH资源对应的发送波束，本申请实施例对此不作限定。
具体地，在网络设备和终端设备传输第一上行信道之前，终端设备和网络设备都需要确定该第一上行信道的发送波束，终端设备可以采用该发送波束发送该第一上行信道，网络设备可以采用与该发送波束对应的接收波束接收该第一上行信道。该发送波束可以为终端设备最近使用过的发送波束或最近将要使用的发送波束，和/或，该发送波束对应的天线面板为该终端设备最近使用过的天线面板或最近将要使用的天线面板。换句话说，发送波束可以为终端设备最近使用过的发送波束，那么发送波束对应的天线面板即为该终端设备最近使用过的天线面板，发送波束为终端设备最近将要使用的发送波束，那么发送波束对应的天线面板即为该终端设备最近将要使用的天线面板。但反过来不一定成立，发送波束对应的天线面板为该终端设备最近使用过的天线面板，但该天线面板可以形成多个波束，第一上行信道的发送波束不一定是终端设备最近使用过的那一个，例如，该发送波束可以为该天线面板对应的波束中信号质量最高的一个波束，或者，该发送波束可以为该天线面板对应的波束中信号质量最高的三个波束中的任一个波束，本申请实施例对此不作限定。同样地，发送波束对应的天线面板为该终端设备最近将要使用的天线面板，但该天线面板可以形成多个波束，第一上行信道的发送波束不一定是终端设备最近将要使用的那一个。
还应理解，本申请实施例所述的传输时间单元是指已经传输(包括发送和/或接收)了数据或信号的时间单元，或者将要传输数据或信号的时间单元。上述“最近使用过的”波束或天线面板表示在终端设备发送该第一上行信道之前的最后一个传输时间单元(例如，传输数据或信号的最后一个时隙)对应的波束或天线面板，换句话说，“最近使用过的”波束或天线面板对应的时间单元为在发送第一上行信道的时间单元之前、已经传输了数据或信号、且与发送第一上行信道的时间单元的时间间隔最小的时间单元；上述“最近将要使用的”波束或天线面板表示在终端设备发送该第一上行信道之后的第一个传输时间单元(例如，传输数据或信号的第一个时隙)对应的波束或天线面板，换句话说，“最近将要使用的”波束或天线面板对应的时间单元为在发送第一上行信道的时间单元之后、将要传输数据或信号、且与发送第一上行信道的时间单元的时间间隔最小的时间单元。一般情况下，“最近将要使用的”波束或天线面板是网络设备通过信令为终端设备配置的。示例性地，以天线面板为例，若终端设备最近使用过的天线面板为天线面板2，终端设备将要使用的天线面板为天线面板3，那么，该终端设备可以确定该第一上行信道的发送波束 为天线面板2，该终端设备也可以确定该第一上行信道的发送波束为天线面板3，这样都能够尽可能地避免终端设备切换天线面板，本申请实施例对此不作限定。
本申请实施例的数据传输方法，通过将终端设备最近使用过的天线面板或最近将要使用的天线面板作为该终端设备发送第一上行信道的发送波束对应的天线面板，有利于避免终端设备的天线面板的频繁切换和来不及切换的问题，进而提高数据传输性能。
可选地，上述“最近使用过”所对应的时隙和发送PUSCH的当前时刻之间的时间间隔不能太大，否则天线面板可能已经关闭，处于未激活状态，若要再传输PUSCH，还需要将已关闭的天线面板激活，需要消耗一定时间。同理，上述“最近将要使用”所对应的时隙和发送PUSCH的当前时刻之间的时间间隔不能太大，否则天线面板可能还未激活，若要传输PUSCH，还需要将处于未激活状态的天线面板提前激活，需要消耗一定时间。上述时间间隔的最大值可以是协议约定的，或者网络设备通过信令配置的。
作为一个可选的实施例，所述方法还包括：所述终端设备确定所述最近使用过的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的时间单元之间的第一时间间隔，以及所述最近将要使用的发送波束或天线面板对应的传输时间单元与发送所述第一上行信道的时间单元之间的第二时间间隔；所述终端设备将所述第一时间间隔和所述第二时间间隔中较小的时间间隔对应的发送波束或天线面板作为所述发送波束或所述发送波束对应的天线面板。
这样，终端设备能结合具体情况，从最近使用过的发送波束或天线面板、和最近将要使用的发送波束或天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。网络设备所执行的处理动作与终端设备类似，此处不再赘述。
作为一个可选的实施例，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述网络设备向终端设备发送控制信息，则对应地，所述终端设备接收来自所述网络设备的控制信息，所述控制信息用于调度所述第一上行信道，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息和用于指示所述第一上行信道的发送波束对应的天线面板的信息。
具体地，上述第一上行信道是网络设备通过控制信息调度的，例如，网络设备通过DCI调度PUSCH的传输。因此，在本申请实施例中，该控制信息不包括用于指示第一上行信道的发送波束的信息和用于指示该第一上行信道的发送波束对应的天线面板的信息。即本申请实施例并未显式指示第一上行信道的发送波束，而是采用隐式确定的方法，使得网络设备和终端设备采用默认的收发波束对进行第一上行信道的传输，避免了终端设备的天线面板的频繁切换。
作为一个可选的实施例，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述网络设备向终端设备发送控制信息，则对应地，所述终端设备接收来自网络设备的控制信息，所述控制信息用于调度所述第一上行信道，所述控制信息包括用于指示所述第一上行信道的发送波束对应的天线面板的信息，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息。
具体地，上述控制信息指示了终端设备发送第一上行信道的天线面板，则该终端设备可以采用该控制信息所指示的天线面板发送该第一上行信道。若存在有多个PUCCH资源 配置有该控制信息所指示的天线面板，则该第一上行信道的发送波束可以参考该多个PUCCH资源中ID最小的PUCCH资源，即该第一上行信道的发送波束为该多个PUCCH资源中ID最小的PUCCH资源对应的发送波束。
作为一个可选的实施例，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
具体地，上述发送波束可以参考终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源。换句话说，该发送波束可以为该终端设备最近使用过的PUCCH资源对应的发送波束，或者，该发送波束可以为该终端设备最近将要使用的PUCCH资源对应的发送波束。应理解，PUCCH资源是网络设备通过信令为终端设备配置的。
作为一个可选的实施例，在所述终端设备确定第一上行信道的发送波束之前，所述方法还包括：所述网络设备向所述终端设备发送第二配置信息，则对应地，所述终端设备接收来自网络设备的第二配置信息，所述第二配置信息用于配置第二上行信道的资源，所述资源包括时域资源、频域资源、所述第二上行信道的发送波束以及所述第二上行信道的发送波束对应的天线面板中的至少一个；所述终端设备确定第一上行信道的发送波束，包括：所述终端设备根据所述第二配置信息，确定所述第一上行信道的发送波束。
具体地，网络设备可以向终端设备发送第二配置信息配置第二上行信道的资源，该第二上行信道可以是上行控制信道，例如PUCCH。该第二上行信道的资源可以包括该第二上行信道的时域资源、频域资源、发送波束、发送波束对应的天线面板(也称为发送天线面板)中的至少一个。
示例性地，上述第二上行信道为PUCCH，则网络设备可以通过上述第二配置信息为终端设备配置一个或多个PUCCH资源。其中，一个PUCCH资源可以包括：该PUCCH资源的时频资源(例如占用的资源元素(resource element，RE)的信息)、该PUCCH资源的时域行为(例如周期、偏移等)、以及该PUCCH资源的发送波束(PUCCH spatial relation)。其中，发送波束指示可以用于指示上述PUCCH资源的发送波束，具体可以包括上行波束管理资源的标识，例如SRS资源ID和/或SRS资源集合ID，以及下行波束管理资源的标识，例如同步信号块(synchronization signal block，SSB)索引(index)、CSI-RS资源ID和/或CSI RS资源集合ID等。
示例性地，网络设备可以通过一个第二配置信息为终端设备配置一个PUCCH资源或者多个PUCCH资源，也可以通过多个第二配置信息为终端设备配置多个PUCCH资源，具体通过该多个第二配置信息中的每个第二配置信息为终端设备配置一个PUCCH资源，本申请实施例对此不作限定。
可选地，上述PUCCH资源还可以包括：该PUCCH资源的发送天线面板，具体包括显式或隐式的天线面板标识、该天线面板形成的一组波束的组号、上行波束管理资源集合的标识，例如SRS资源ID和/或SRS资源集合ID，以及下行波束管理资源集合的标识，例如SSB index、CSI-RS资源ID和/或CSI RS资源集合ID等。
作为一个可选的实施例，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小或最大的PUCCH资源对应的发送波束。
具体地，上述发送波束为多个PUCCH资源中ID最小或最大的PUCCH资源对应的发 送波束。例如，终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括PUCCH资源1、PUCCH资源2和PUCCH资源3，那么该终端设备可以确定第一上行信道的发送波束为PUCCH资源1对应的发送波束，或者，该终端设备可以确定第一上行信道的发送波束为PUCCH资源3对应的发送波束。
作为一个可选的实施例，若所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小或最大的PUCCH资源对应的发送波束。
具体地，上述发送波束为配置有最近使用过的天线面板的多个PUCCH资源中ID最小或最大的PUCCH资源对应的发送波束。例如，终端设备最近使用过的天线面板为天线面板2，配置有该天线面板2的PUCCH资源包括PUCCH资源2、PUCCH资源4、PUCCH资源5，那么该终端设备可以确定第一上行信道的发送波束为PUCCH资源2对应的发送波束，或者，该终端设备可以确定第一上行信道的发送波束为PUCCH资源5对应的发送波束。
应理解，上述ID最小或ID最大仅仅是网络设备和终端设备采用默认的方式确定发送波束所定的一种规则，终端设备还可以参考指定ID的PUCCH资源，本申请实施例对此不作限定。
作为一个可选的实施例，所述方法还包括：所述终端设备判断所述终端设备最近使用过的上行天线面板是否处于激活状态；若所述终端设备最近使用过的上行天线面板处于激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的上行天线面板；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的下行天线面板。
换句话说，若所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
应理解，本文所述的上行天线面板表示上行传输所使用的天线面板，下行天线面板表示下行传输所使用的天线面板。
具体地，考虑到天线面板存在一定的保活时长(即天线面板保持激活状态的时间长度)，在确定了参考最近使用过的天线面板的情况下，终端设备可以判断该最近使用过的上行天线面板是否处于激活状态。若该最近使用过的上行天线面板处于激活状态，该终端设备可以使用该最近使用过的上行天线面板。若该最近使用过的上行天线面板处于未激活状态，该终端设备可以使用最近使用过的下行天线面板。进一步地，该终端设备可以在处于激活状态的下行天线面板中，选择一个最近使用过的下行天线面板。
作为一个可选的实施例，所述方法还包括：所述网络设备判断所述终端设备最近使用过的上行天线面板是否处于激活状态；若所述终端设备最近使用过的上行天线面板处于激活状态，所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的上行天线面板；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近使用过的下行天线面板。
同理，为了保证网络设备与终端设备的理解一致，使得网络设备采用与终端设备确定的发送波束对应的接收波束准确接收该第一上行信道，该网络设备需要采用与终端设备相同的方法确定上述终端设备的上行天线面板是否处于激活状态，从而确定终端设备发送第一上行信道使用的是上行天线面板还是下行天线面板，此处不再赘述。
作为一个可选的实施例，所述方法还包括：所述终端设备确定所述终端设备最近一次上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第三时间间隔；所述终端设备确定所述终端设备最近一次下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第四时间间隔；所述终端设备将所述第三时间间隔和所述第四时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
例如，发送第一上行信道的时间单元为n，最近一次上行发送的时间单元为n-n 1，最近一次下行接收的时间单元为n-n 2，即上述第三时间间隔为n 1，第四时间间隔为n 2，终端设备可以选择n 1和n 2中较小值对应的时间单元对应的天线面板。其中，n、n 1、n 2均为大于或等于0的整数。
这样，终端设备能结合具体情况，从最近使用过的上行天线面板和最近使用过的下行天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。网络设备所执行的处理动作与终端设备类似，此处不再赘述。
作为一个可选的实施例，所述方法还包括：所述终端设备确定所述终端设备最近将要上行发送的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第五时间间隔；所述终端设备确定所述终端设备最近将要下行接收的时间单元与所述终端设备发送所述第一上行信道的时间单元之间的第六时间间隔；所述终端设备将所述第五时间间隔和所述第六时间间隔中较小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
例如，发送第一上行信道的时间单元为n，最近将要上行发送的时间单元为n+n 3，最近将要下行接收的时间单元为n+n 4，即上述第五时间间隔为n 3，第六时间间隔为n 4，终端设备可以选择n 3和n 4中较小值对应的时间单元对应的天线面板。其中，n、n 3、n 4均为大于或等于0的整数。
这样，终端设备能结合具体情况，从最近将要使用的上行天线面板和最近将要使用的下行天线面板中合理选择，使得该终端设备尽可能采用处于激活状态的天线面板，从而避免终端设备的天线面板的频繁切换和来不及切换的问题。
应理解，终端设备还可以从上述第三时间间隔、第四时间间隔、第五时间间隔以及第六时间间隔中选择一个最小的时间间隔，将该最小的时间间隔对应的天线面板确定为所述发送波束对应的天线面板。
在上述例子中，发送第一上行信道的时间单元为n，最近一次上行发送的时间单元为n-n 1，最近一次下行接收的时间单元为n-n 2，最近将要上行发送的时间单元为n+n 3，最近将要下行接收的时间单元为n+n 4，终端设备可以选择n 1、n 2、n 3和n 4中最小值对应的时间单元对应的天线面板。
在本实施例中，网络设备所执行的处理动作与终端设备类似，此处不再赘述。
作为一个可选的实施例，所述方法还包括：所述终端设备判断所述终端设备最近将要使用的上行天线面板是否处于激活状态；若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的上行天线面板；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述终端设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的下行天线面板。
换句话说，若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近将要使用的上行天线面板对应的波束；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近将要使用的下行天线面板对应的波束。
具体地，考虑到天线面板存在一定的保活时长(即处于激活状态的时间长度)，在确定了参考最近将要使用的天线面板的情况下，终端设备可以判断该最近将要使用的上行天线面板是否处于激活状态。若该最近将要使用的上行天线面板处于激活状态，该终端设备可以使用该最近将要使用的上行天线面板。若该最近将要使用的上行天线面板处于未激活状态，该终端设备可以使用最近将要使用的下行天线面板。进一步地，该终端设备可以在处于激活状态的下行天线面板中，选择一个最近将要使用的下行天线面板。
作为一个可选的实施例，所述方法还包括：所述网络设备判断所述终端设备最近将要使用的上行天线面板是否处于激活状态；若所述终端设备最近将要使用的上行天线面板处于激活状态，则所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的上行天线面板；或，若所述终端设备最近将要使用的上行天线面板处于未激活状态，则所述网络设备确定所述发送波束对应的天线面板为所述终端设备最近将要使用的下行天线面板。
同理，为了保证网络设备与终端设备的理解一致，使得网络设备采用与终端设备确定的发送波束对应的接收波束准确接收该第一上行信道，该网络设备需要采用与终端设备相同的方法确定上述上行天线面板是否处于激活状态，从而确定终端设备发送第一上行信道使用的是上行天线面板还是下行天线面板，此处不再赘述。
应理解，网络设备和终端设备之间需要同步发送天线面板的状态，即天线面板处于激活状态或非激活状态。
作为一个可选的实施例，所述方法还包括：所述终端设备向网络设备发送能力信息，所述能力信息用于表示所述终端设备的上行天线面板保持激活状态的时长；
则对应地，所述网络设备接收来自所述终端设备的能力信息；所述网络设备判断所述最近使用过的上行天线面板是否处于激活状态，包括：所述网络设备根据所述能力信息，判断所述最近使用过的上行天线面板是否处于激活状态。
具体地，上述终端设备可以向网络设备发送用于表示终端设备上行天线面板的保活时长的能力信息，该网络设备可以根据该能力信息，确定终端设备的上行天线面板是否处于激活状态。
作为一个可选的实施例，所述方法还包括：所述网络设备向所述终端设备发送第一配置信息，所述第一配置信息用于表示要求所述终端设备的上行天线面板保持激活状态的时长；则对应地，所述终端设备接收来自网络设备的第一配置信息；所述终端设备判断所述 终端设备最近使用过的上行天线面板是否处于激活状态，包括：所述终端设备根据所述第一配置信息，判断所述终端设备最近使用过的上行天线面板是否处于激活状态。
具体地，上述网络设备可以向终端设备发送用于表示终端设备上行天线面板的保活时长的第一配置信息。换句话说，该第一配置信息要求终端设备在上行天线面板激活之后必须维持该上行天线面板激活该第一配置信息所指示的时长。终端设备即可根据该第一配置信息，确定该终端设备的上行天线面板是否处于激活状态。
作为一个可选的实施例，所述第一配置信息是所述网络设备根据所述终端设备的能力信息确定的。
示例性地，所述能力信息表示所述终端设备的上行天线面板能够保持激活的时长Y，所述第一配置信息表示所述网络设备要求所述终端设备将上行天线面板保持激活状态的时长X，X小于或等于Y，X和Y均大于0。
综上，以上述第一上行信道为PUSCH，第二上行信道为PUCCH为例，本申请实施例提出的数据传输方法，可分为下列三种可能的情况：
在一种可能的实现方式中，终端设备不切换天线面板，也不切换发送波束。即PUSCH的发送波束为所述终端设备最近使用过的PUCCH资源对应的发送波束。可选地，所述发送波束为所述PUCCH资源中ID最小的PUCCH资源对应的发送波束。
示例性地，对于一个小区中通过DCI 0_0调度的PUSCH，终端设备可以传输PUSCH，该PUSCH的发送波束与该小区的激活UL BWP的最近使用过的PUCCH资源中、ID最小的PUCCH资源的发送波束一致。
(For PUSCH scheduled by DCI format 0_0 on a cell,the UE shall transmit PUSCH according to the spatial relation,if applicable,corresponding to the PUCCH resource with the lowest ID in the latest slot within the active UL BWP of the cell.)
在另一种可能的实现方式中，终端设备不切换天线面板，切换发送波束，即在相同天线面板上从一个波束切换至另一个波束。即PUSCH的发送波束对应的天线面板为使用PUCCH资源的天线面板中最近一次使用过的天线面板。可选地，所述发送波束为在配置有使用PUCCH资源的天线面板中最近使用过的天线面板的多个PUCCH资源中，ID最小的PUCCH资源对应的发送波束。
示例性地，对于一个小区中通过DCI 0_0调度的PUSCH，终端设备可以传输PUSCH，该PUSCH的发送波束与该小区的激活UL BWP的最近使用过的天线面板对应的PUCCH资源中、ID最小的PUCCH资源的发送波束一致。
(For PUSCH scheduled by DCI format 0_0 on a cell,the UE shall transmit PUSCH according to the spatial relation,if applicable,corresponding to the PUCCH resource with the lowest ID which has a same panel ID as the PUCCH resource in the latest slot within the active UL BWP of the cell.)
在另一种可能的实现方式中，终端设备采用PUCCH之外的其他信道/信号(包括下行信道/信号)对应的发送天线面板作为发送天线面板。即PUSCH的发送波束对应的天线面板为使用第一资源的天线面板中最近使用过的天线面板。可选地，所述发送波束为在配置有在使用第一资源的天线面板中最近使用过的天线面板的多个第一资源中，ID最小的第一资源对应的发送波束。可选地，该第一资源可以为PUSCH资源、SRS资源、CSI-RS资 源、PDSCH资源、或者PDCCH资源。
示例性地，对于一个小区中通过DCI 0_0调度的PUSCH，终端设备可以传输PUSCH，该PUSCH的发送波束与该小区的激活UL/DL BWP的最近使用过的、用于传输PUSCH、SRS、CSI-RS、PDSCH或PDCCH的天线面板对应的资源中，ID最小的资源的发送波束一致。
(For PUSCH scheduled by DCI format 0_0 on a cell,the UE shall transmit PUSCH according to the spatial relation,if applicable,corresponding to the resource with the lowest ID which has a same panel ID as the panel used for PUSCH/SRS/CSI-RS/PDSCH/PDCCH in the latest slot within the active UL/DL BWP of the cell.)
具体分析如下：
示例性地，所述发送波束对应的天线面板为在发送PUSCH的天线面板中，最近使用的天线面板1。进一步地，所述发送波束为在配置有天线面板1的多个PUSCH资源中，PUSCH解调参考信号(demodulation reference signal，DMRS)的端口号最小的PUSCH资源的发送波束。
示例性地，所述发送波束对应的天线面板为在发送SRS的天线面板中，最近使用的天线面板2。进一步地，所述发送波束为在配置有天线面板2的多个SRS资源中，标识最小的SRS资源的发送波束。
示例性地，所述发送波束对应的天线面板为在接收CSI-RS的天线面板中，最近使用的天线面板3。进一步地，所述发送波束为在配置有天线面板3的多个CSI-RS资源中，标识最小的CSI-RS资源的接收波束对应的发送波束。
示例性地，所述发送波束对应的天线面板为在接收PDCCH的天线面板中，最近使用的天线面板4。进一步地，所述发送波束为在配置有天线面板4的多个PDCCH资源中，标识最小的PDCCH资源的接收波束对应的发送波束，例如，控制资源集(control resource set，CORESET)标识最小的CORESET的接收波束对应的发送波束。
示例性地，所述发送波束对应的天线面板为在接收PDSCH的天线面板中，最近使用的天线面板5。进一步地，所述发送波束为在配置有天线面板5的多个PDSCH资源中，标识最小的PDSCH资源的接收波束对应的发送波束，例如，PDSCH DMRS端口号最小的PDSCH资源的接收波束对应的发送波束。
下面结合具体实施例，对本申请的数据传输方法进行详细说明。
步骤一、网络设备发送配置信息，该配置信息用于配置一个或多个PUCCH资源。终端设备接收该配置信息，根据该配置信息即可确定PUCCH资源对应的发送波束。
步骤二、终端设备与网络设备进行正常通信，包括但不限于按照配置监测PDCCH、测量和上报CSI-RS、发送SRS、发送PUCCH、传输PDSCH和/或PUSCH等。
步骤三、网络设备在下行时隙n向终端设备发送DCI，调度PUSCH，该DCI中不包括波束相关指示信息和天线面板相关指示信息。该终端设备接收该DCI，n为大于或等于0的整数。
步骤四、终端设备和网络设备分别确定PUSCH的发送波束，采用该发送波束在上行时隙m发送PUSCH，网络设备采用该发送波束对应的接收波束接收该PUSCH，m为大于或等于0的整数。
应理解，DCI的发送到PUSCH的发送之间具有一段时间间隔，本实施例用k表示，k为大于0的整数。k可以是一个预定义的或者由网络设备配置的时间长度。如果上下行的子载波间隔一致，那么m＝n+k。如果上下行的子载波间隔不一致，则需要时间单位的转换。例如，
Figure PCTCN2020078966-appb-000001
其中
Figure PCTCN2020078966-appb-000002
是向上取整操作，μ_UL和μ_DL分别表示上行PUSCH的系统参数和下行DCI的系统参数。通过上述公式，可以将下行时隙号n换算成对应的上行时隙号
Figure PCTCN2020078966-appb-000003
在本实施例的一种实现方式中，PUSCH的发送波束为最近使用过的PUCCH资源的发送波束，该最近使用过的PUCCH资源即为该终端设备最近一次已经发送的PUCCH对应的PUCCH资源。应理解，若最近一次使用过的PUCCH资源有多个，该终端设备可以选择其中ID最大或最小的一个PUCCH资源。
可选地，上述“最近一次”指时隙n-x 1(或者m-y 1)之后的最近一次，y 1-x 1＝k，x 1和y 1均为大于0的整数。换句话说，最近一次所在的时隙和当前时刻之间的时间间隔不能太大，否则天线面板可能已经关闭，处于未激活状态，若要再传输PUSCH，还需要将已关闭的天线面板激活，需要消耗一定时间。
应理解，上述x 1和/或y 1可以是协议预定义的或者网络设备配置的。如果最近一次发送PUCCH的时间与当前时刻(n或m)的时间间隔大于x 1或y 1，PUSCH的发送波束可以参考所有配置了发送波束的PUCCH资源中ID最小的那一个PUCCH资源，或者，PUSCH的发送波束可以参考随机接入过程中确定的发送波束，本申请实施例对此不作限定。
这种实现方式可以保证终端设备使用当前正处于激活状态的天线面板发送PUSCH，无需进行天线面板的切换，能够避免终端设备的天线面板的频繁切换和来不及切换的问题。
在本实施例的另一种实现方式中，PUSCH的发送波束为最近将要使用的PUCCH资源的发送波束，该最近将要使用的PUCCH资源即为该终端设备最近一次将要发送的PUCCH对应的PUCCH资源。应理解，若最近一次将要发送的PUCCH资源有多个，该终端设备可以选择其中ID最大或最小的一个PUCCH资源。
可选地，上述“最近一次”指时隙n+x 2(或者m+y 2)之前的最近一次，y 2-x 2＝k，x 2和y 2均为大于0的整数。换句话说，最近一次所在的时隙和当前时刻之间的时间间隔不能太大，否则天线面板可能还未激活，若要传输PUSCH，还需要将处于未激活状态的天线面板提前激活，需要消耗一定时间。
应理解，上述x 2和/或y 2可以是协议预定义的或者网络设备配置的。如果最近一次将要发送PUCCH的时间与当前时刻(n或m)的时间间隔大于x 2或y 2，PUSCH的发送波束可以参考所有配置了发送波束的PUCCH资源中ID最小的那一个PUCCH资源，或者，PUSCH的发送波束可以参考随机接入过程中确定的发送波束，本申请实施例对此不作限定。
这种实现方式可以保证终端设备切换天线面板发送PUSCH之后，无需再进行切换来发送下一次将要传输的PUCCH，也能够避免终端设备的天线面板的频繁切换和来不及切换的问题。
在本实施例的另一种实现方式中，PUSCH的发送天线面板可以为最近使用过的PUCCH资源的天线面板。在配置了相同的该天线面板的多个PUCCH资源中，PUSCH的 发送波束可以为其中ID最大或最小的PUCCH资源的发送波束。同样地，上述“最近使用过的”为该终端设备最近一次已经使用的天线面板。可选地，上述“最近一次”指时隙n-x 1(或者m-y 1)之后的最近一次，y 1-x 1＝k。换句话说，最近一次所在的时隙和当前时刻之间的时间间隔不能太大，此处不再赘述。
在本实施例的另一种实现方式中，PUSCH的发送天线面板可以为最近将要使用的PUCCH资源的天线面板。在配置了相同的天线面板的多个PUCCH资源中，PUSCH的发送波束可以为其中ID最大或最小的PUCCH资源的发送波束。
同样地，上述“最近将要使用的”为该终端设备最近一次将要使用的天线面板。可选地，上述“最近一次”指时隙n-x 2(或者m-y 2)之后的最近一次，y 2-x 2＝k。换句话说，最近一次所在的时隙和当前时刻之间的时间间隔不能太大，此处不再赘述。
应理解，上述天线面板可以为上行天线面板，也可以为下行天线面板，例如，终端设备接收PDCCH、CSI-RS、或者PDSCH所使用的天线面板。在本实施例的另一种实现方式中，终端设备可以优先选择最近使用过的上行天线面板发送PUSCH，若最近使用过的上行天线面板未激活，则该终端设备可以选择最近使用过的下行天线面板发送PUSCH。如图3所示，终端设备采用天线面板1发送PUCCH资源1，采用天线面板2发送PUCCH资源2，即天线面板1和天线面板2为上行天线面板，且天线面板2为该终端设备最近使用过的上行天线面板。在发送PUSCH时，该终端设备可以先判断天线面板2是否处于激活状态，若天线面板2处于激活状态，则该终端设备可以使用天线面板2发送PUSCH。若天线面板2处于未激活状态，则该终端设备可以使用最近使用过的下行天线面板发送PUSCH。应理解，该下行天线面板可以是从处于激活状态的下行天线面板中确定的。
应理解，上述各过程的序号的大小并不意味着执行顺序的先后，各过程的执行顺序应以其功能和内在逻辑确定，而不应对本申请实施例的实施过程构成任何限定。
上文中结合图1至图3，详细描述了根据本申请实施例的数据传输方法，下面将结合图4至图5，详细描述根据本申请实施例的数据传输装置。
图4示出了本申请实施例提供的数据传输装置400。该装置400可以是终端设备，也可以是终端设备中的芯片。该装置400可以是网络设备，也可以是网络设备中的芯片。该装置400包括：处理单元410和收发单元420。
在一种可能的实现方式中，装置400用于执行上述方法200中终端设备对应的各个流程和步骤。
该处理单元410用于：确定第一上行信道的发送波束；该收发单元420用于：采用所述发送波束发送所述第一上行信道；其中，所述发送波束为所述装置最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述装置最近使用过的天线面板或最近将要使用的天线面板。
所述发送波束对应的天线面板为所述装置最近使用过的天线面板或最近将要使用的天线面板，可以理解为：所述发送波束为所述装置最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
可选地，所述发送波束为所述装置最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
可选地，若所述装置最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括 多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
可选地，若所述发送波束对应的天线面板为所述装置最近使用过的天线面板或最近将要使用的天线面板，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
可选地，若所述装置最近使用过的上行天线面板处于激活状态，则所述发送波束为所述装置最近使用过的上行天线面板对应的波束；或，若所述装置最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述装置最近使用过的下行天线面板对应的波束。
可选地，所述处理单元410还用于：判断所述装置最近使用过的上行天线面板是否处于激活状态；若所述装置最近使用过的上行天线面板处于激活状态，则确定所述发送波束对应的天线面板为所述装置最近使用过的上行天线面板；或，若所述装置最近使用过的上行天线面板处于未激活状态，则确定所述发送波束对应的天线面板为所述装置最近使用过的下行天线面板。
可选地，所述收发单元420还用于：接收来自网络设备的控制信息，所述控制信息用于调度所述第一上行信道，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息。
在一种可能的实现方式中，装置400用于执行上述方法200中网络设备对应的各个流程和步骤。
该处理单元410用于：确定第一上行信道的发送波束；该收发单元420用于：采用与所述发送波束对应的接收波束接收所述第一上行信道；其中，所述发送波束为终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板。
可选地，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
可选地，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
可选地，若所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要使用的天线面板，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
可选地，若所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
可选地，所述处理单元410还用于：判断所述终端设备最近使用过的上行天线面板是否处于激活状态；若所述终端设备最近使用过的上行天线面板处于激活状态，则确定所述发送波束对应的天线面板为所述终端设备最近使用过的上行天线面板；或，若所述终端设 备最近使用过的上行天线面板处于未激活状态，则确定所述发送波束对应的天线面板为所述终端设备最近使用过的下行天线面板。
可选地，所述收发单元420还用于：向终端设备发送控制信息，所述控制信息用于调度所述第一上行信道，且所述控制信息不包括用于指示所述第一上行信道的发送波束的信息。
应理解，这里的装置400以功能单元的形式体现。这里的术语“单元”可以指应用特有集成电路(application specific integrated circuit，ASIC)、电子电路、用于执行一个或多个软件或固件程序的处理器(例如共享处理器、专有处理器或组处理器等)和存储器、合并逻辑电路和/或其它支持所描述的功能的合适组件。在一个可选例子中，本领域技术人员可以理解，装置400可以具体为上述实施例中的终端设备或网络设备，装置400可以用于执行上述方法实施例中与终端设备或网络设备对应的各个流程和/或步骤，为避免重复，在此不再赘述。
上述各个方案的装置400具有实现上述方法中终端设备或网络设备执行的相应步骤的功能；所述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。所述硬件或软件包括一个或多个与上述功能相对应的模块。例如，上述收发单元420可以包括发送单元和接收单元，该发送单元可以用于实现上述收发单元对应的用于执行发送动作的各个步骤和/或流程，该接收单元可以用于实现上述收发单元对应的用于执行接收动作的各个步骤和/或流程。该发送单元可以由发射器替代，该接收单元可以由接收器替代，分别执行各个方法实施例中的收发操作以及相关的处理操作。
在本申请的实施例，图4中的装置400也可以是芯片或者芯片系统，例如：片上系统(system on chip，SoC)。对应的，接收单元和发送单元可以是该芯片的收发电路，在此不做限定。
图5示出了本申请实施例提供的另一数据传输装置500。该装置500包括处理器510、收发器520和存储器530。其中，处理器510、收发器520和存储器530通过内部连接通路互相通信，该存储器530用于存储指令，该处理器510用于执行该存储器530存储的指令，以控制该收发器520发送信号和/或接收信号。
在一种可能的实现方式中，装置500用于执行上述方法200中终端设备对应的各个流程和步骤。
其中，该处理器510用于：确定第一上行信道的发送波束；采用所述发送波束，通过该收发器520发送所述第一上行信道；
其中，所述发送波束为所述装置最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述装置最近使用过的天线面板或最近将要使用的天线面板。
在一种可能的实现方式中，装置500用于执行上述方法200中网络设备对应的各个流程和步骤。
其中，该处理器510用于：确定第一上行信道的发送波束；采用与所述发送波束对应的接收波束，通过该收发器520接收所述第一上行信道；
其中，所述发送波束为终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束对应的天线面板为所述终端设备最近使用过的天线面板或最近将要 使用的天线面板。
应理解，装置500可以具体为上述实施例中的终端设备或网络设备，并且可以用于执行上述方法实施例中与终端设备或网络设备对应的各个步骤和/或流程。可选地，该存储器530可以包括只读存储器和随机存取存储器，并向处理器提供指令和数据。存储器的一部分还可以包括非易失性随机存取存储器。例如，存储器还可以存储设备类型的信息。该处理器510可以用于执行存储器中存储的指令，并且当该处理器510执行存储器中存储的指令时，该处理器510用于执行上述与该终端设备或网络设备对应的方法实施例的各个步骤和/或流程。该收发器520可以包括发射器和接收器，该发射器可以用于实现上述收发器对应的用于执行发送动作的各个步骤和/或流程，该接收器可以用于实现上述收发器对应的用于执行接收动作的各个步骤和/或流程。
应理解，在本申请实施例中，上述装置的处理器可以是中央处理单元(central processing unit，CPU)，该处理器还可以是其他通用处理器、数字信号处理器(DSP)、专用集成电路(ASIC)、现场可编程门阵列(FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件等。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。
在实现过程中，上述方法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。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件单元组合执行完成。软件单元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，处理器执行存储器中的指令，结合其硬件完成上述方法的步骤。为避免重复，这里不再详细描述。
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中描述的各方法步骤和单元，能够以电子硬件、计算机软件或者二者的结合来实现，为了清楚地说明硬件和软件的可互换性，在上述说明中已经按照功能一般性地描述了各实施例的步骤及组成。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。本领域普通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，为了描述的方便和简洁，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。另外，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，也可以是电的，机械的或其它的形式连接。
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申请实施例方案的目的。
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，也可以是两个或两个以上单元集成在一个单元中。上述集成的单元既可以采用硬件的形式实现，也可以采用软件功能单元的形式实现。
所述集成的单元如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分，或者该技术方案的全部或部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)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、只读存储器(read-only memory，ROM)、随机存取存储器(random access memory，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，可轻易想到各种等效的修改或替换，这些修改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权利要求的保护范围为准。

Claims (27)

  1. 一种数据传输方法，其特征在于，包括：
    终端设备确定上行信道的发送波束；
    所述终端设备采用所述发送波束发送所述上行信道；
    其中，所述发送波束为所述终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
  2. 根据权利要求1所述的方法，其特征在于，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
  3. 根据权利要求2所述的方法，其特征在于，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  4. 根据权利要求1所述的方法，其特征在于，若所述发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  5. 根据权利要求1或4所述的方法，其特征在于，若所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，
    若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
  6. 根据权利要求1至5中任一项所述的方法，其特征在于，在所述终端设备确定上行信道的发送波束之前，所述方法还包括：
    所述终端设备接收来自网络设备的控制信息，所述控制信息用于调度所述上行信道，且所述控制信息不包括用于指示所述上行信道的发送波束的信息。
  7. 一种数据传输方法，其特征在于，包括：
    网络设备确定上行信道的发送波束；
    所述网络设备采用与所述发送波束对应的接收波束接收所述上行信道；
    其中，所述发送波束为终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
  8. 根据权利要求7所述的方法，其特征在于，所述发送波束为所述终端设备最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
  9. 根据权利要求8所述的方法，其特征在于，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  10. 根据权利要求7所述的方法，其特征在于，若所述发送波束为所述终端设备最近 使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  11. 根据权利要求7或10所述的方法，其特征在于，所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，
    若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
  12. 根据权利要求7至11中任一项所述的方法，其特征在于，在所述终端设备确定上行信道的发送波束之前，所述方法还包括：
    所述网络设备向终端设备发送控制信息，所述控制信息用于调度所述上行信道，且所述控制信息不包括用于指示所述上行信道的发送波束的信息。
  13. 一种数据传输装置，其特征在于，包括：
    处理单元，用于确定上行信道的发送波束；
    收发单元，用于采用所述发送波束发送所述上行信道；
    其中，所述发送波束为所述装置最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束为所述装置最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
  14. 根据权利要求13所述的装置，其特征在于，所述发送波束为所述装置最近使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
  15. 根据权利要求14所述的装置，其特征在于，若所述装置最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  16. 根据权利要求13所述的装置，其特征在于，若所述发送波束为所述装置最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  17. 根据权利要求13或16所述的装置，其特征在于，若所述装置最近使用过的上行天线面板处于激活状态，则所述发送波束为所述装置最近使用过的上行天线面板对应的波束；或，
    若所述装置最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述装置最近使用过的下行天线面板对应的波束。
  18. 一种数据传输装置，其特征在于，包括：
    处理单元，用于确定上行信道的发送波束；
    收发单元，用于采用与所述发送波束对应的接收波束接收所述上行信道；
    其中，所述发送波束为终端设备最近使用过的发送波束或最近将要使用的发送波束；和/或，所述发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束。
  19. 根据权利要求18所述的装置，其特征在于，所述发送波束为所述终端设备最近 使用过的物理上行控制信道PUCCH资源或最近将要使用的PUCCH资源对应的发送波束。
  20. 根据权利要求19所述的装置，其特征在于，若所述终端设备最近使用过的PUCCH资源或最近将要使用的PUCCH资源包括多个PUCCH资源，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  21. 根据权利要求18所述的装置，其特征在于，若所述发送波束为所述终端设备最近使用过的天线面板对应的波束或最近将要使用的天线面板对应的波束，且存在多个PUCCH资源配置有所述最近使用过的天线面板或最近将要使用的天线面板，则所述发送波束为所述多个PUCCH资源中标识ID最小的PUCCH资源对应的发送波束。
  22. 根据权利要求18或21所述的装置，其特征在于，若所述终端设备最近使用过的上行天线面板处于激活状态，则所述发送波束为所述终端设备最近使用过的上行天线面板对应的波束；或，
    若所述终端设备最近使用过的上行天线面板处于未激活状态，则所述发送波束为所述终端设备最近使用过的下行天线面板对应的波束。
  23. 一种数据传输装置，其特征在于，包括处理器和存储器，所述处理器和所述存储器耦合，所述处理器用于执行权利要求1至12中任一项所述的方法。
  24. 一种计算机可读介质，用于存储计算机程序，其特征在于，所述计算机程序包括用于实现如权利要求1至12中任一项所述的方法的指令。
  25. 一种数据传输装置，其特征在于，包括：处理器、存储器和收发器；
    所述收发器，用于接收信号或者发送信号；
    所述存储器，用于存储程序代码；
    所述处理器，用于从所述存储器调用所述程序代码执行如权利要求1至6中任一项、或者如权利要求7至12中任一项所述的方法。
  26. 一种数据传输装置，其特征在于，包括：处理器，当所述处理器调用存储器中的计算机程序时，如权利要求1至6中任一项、或者如权利要求7至12中任一项所述的方法被执行。
  27. 一种计算机程序产品，所述计算机程序产品中包括计算机程序代码，其特征在于，当所述计算机程序代码在计算机上运行时，使得计算机实现如权利要求1至6中任一项、或者如权利要求7至12中任一项所述的方法。
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