WO2018141115A1 - 一种用于传输信号的方法、终端设备和网络设备 - Google Patents

一种用于传输信号的方法、终端设备和网络设备 Download PDF

Info

Publication number
WO2018141115A1
WO2018141115A1 PCT/CN2017/073002 CN2017073002W WO2018141115A1 WO 2018141115 A1 WO2018141115 A1 WO 2018141115A1 CN 2017073002 W CN2017073002 W CN 2017073002W WO 2018141115 A1 WO2018141115 A1 WO 2018141115A1
Authority
WO
WIPO (PCT)
Prior art keywords
downlink transmission
transmission beam
network device
information
terminal device
Prior art date
Application number
PCT/CN2017/073002
Other languages
English (en)
French (fr)
Inventor
唐海
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to CN201780080535.6A priority Critical patent/CN110140302B/zh
Priority to PCT/CN2017/073002 priority patent/WO2018141115A1/zh
Priority to US16/483,418 priority patent/US10728898B2/en
Priority to EP17895268.5A priority patent/EP3579446B1/en
Publication of WO2018141115A1 publication Critical patent/WO2018141115A1/zh
Priority to IL268447A priority patent/IL268447A/en
Priority to PH12019501790A priority patent/PH12019501790A1/en
Priority to US16/909,961 priority patent/US20200322942A1/en

Links

Images

Classifications

    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • 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
    • H04B7/0613—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 simultaneous transmission
    • H04B7/0615—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 simultaneous transmission of weighted versions of same signal
    • H04B7/0619—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 simultaneous transmission of weighted versions of same signal using feedback from receiving side
    • H04B7/0621—Feedback content
    • H04B7/063—Parameters other than those covered in groups H04B7/0623 - H04B7/0634, e.g. channel matrix rank or transmit mode selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the embodiments of the present application relate to the field of communications, and, more particularly, to a method, a terminal device, and a network device for transmitting signals.
  • a terminal device and a network device can train multiple beams by beamforming, and different beams can correspond to different directions and different coverage areas.
  • the network device does not know the performance of the downlink transmission beam, but uses all downlink transmission beams in the system to send signals to the terminal device, resulting in a large system signaling overhead.
  • the embodiments of the present application provide a method, a terminal device, and a network device for transmitting signals, which can reduce system signaling overhead.
  • a method for transmitting a signal comprising: receiving, by a terminal device, a signal sent by a network device by using multiple downlink transmission beam groups; the terminal device transmitting first information to the network device, to facilitate the The network device determines a first downlink transmission beam group from the plurality of downlink transmission beam groups, and at least one of the plurality of downlink transmission beam groups includes a plurality of downlink transmission beams.
  • Each downlink transmission beam group includes at least one downlink transmission beam.
  • the first information may be an implicit indication or a dominant indication, and the explicit indication may be indicated by several bits, and the implicit indication may associate the downlink transmission beam group with the transmission characteristic, and the transmission characteristic is Network device feedback.
  • the beam is physically invisible to the terminal device in the system.
  • the terminal device After receiving the signal transmitted by the network device through multiple beams, the terminal device can identify the difference of the beam by using different signals. That is to say, the terminal device can feed back to the network device by using the transmission characteristic indicated by the signal to the network device, and the network device can determine which group of downlink transmission beams is better according to the transmission characteristics fed back by the terminal device.
  • the downlink transmission beams are grouped by using transmission characteristics, and the terminal device receives signals transmitted by multiple downlink transmission beams, and may select a transmission special
  • the signal with good performance is notified to the network device by the transmission characteristic of the signal.
  • the network device After receiving the transmission characteristic, the network device can determine the corresponding downlink transmission beam group, so that the network device only uses the part of the beam to perform the signal. Transmission, which reduces system signaling overhead.
  • the first information is a random access preamble sequence
  • the random access preamble sequence and/or a physical random access channel resource used to send the random access preamble sequence and the first The row transmission beam group corresponds.
  • the random access preamble sequence and/or the physical random access channel resource and the downlink transmission beam group corresponds to the random access preamble sequence and/or the physical random access channel resource and the downlink transmission beam group, so that the granularity of the random access preamble sequence and/or the physical random access channel resource of each group is relatively large, thereby being able to reduce Collision probability of random access.
  • the first downlink transmission beam group is indicated by the first information to the network device, and may be directly indicated by the first information, or may be other transmission characteristics of the first information, such as occupied frequency domain resources and/or time domain resources. .
  • the method further includes: the terminal device sending the second information to the network device, so that the network device is from the multiple downlinks A first downlink transmission beam is determined in the transmission beam group, where the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal.
  • the first downlink transmission beam is a beam in the first downlink transmission beam group.
  • the first downlink transmission beam of the feedback may be a beam with the best transmission performance selected by the terminal device.
  • the first downlink transmission beam may also not belong to the first downlink transmission beam group.
  • the terminal device after the terminal device indicates the first downlink transmission beam group to the network device, and finds that the best performing beam belongs to other groups, the terminal device can directly feed back the first downlink transmission beam to the network device.
  • the two-step indication method is used to feed back the downlink transmission beam expected by the terminal device to the network device, which can greatly reduce the signaling overhead. Moreover, by randomly indicating the manner in which the preamble sequence and/or the physical random access channel resource directly indicate the beam group, the random access collision probability can be reduced.
  • the method before the terminal device sends the second information to the network device, the method further includes: receiving, by the terminal device, third information sent by the network device, where the third information is used to indicate the terminal Whether the second information needs to be sent to the network device; and the terminal device determines, according to the third information, whether to send the second information to the network device.
  • the third information is carried by the random access sent by the network device to the terminal device.
  • the response message and/or the second information is carried in a message for transmitting the identity of the terminal device in the random access procedure.
  • the second information is a signal identifier carried on the first downlink transmission beam received by the terminal device, and the signal carried on the first downlink transmission beam is the following signal. At least one of the signals: a primary synchronization signal, a secondary synchronization signal, a broadcast signal, a reference signal, and a signal carrying a system message.
  • a second aspect provides a method for transmitting a signal, the method comprising: a network device transmitting a signal to a terminal device by using multiple downlink transmission beam groups; the network device receiving first information sent by the terminal device; the network device Determining, according to the first information, a first downlink transmission beam group from the plurality of downlink transmission beam groups, and at least one of the plurality of downlink transmission beam groups includes a plurality of downlink transmission beams.
  • the first information is a random access preamble sequence
  • the network device determines, according to the first information, a first downlink transmission beam group from the multiple downlink transmission beam groups.
  • the network device determines, according to the random access preamble sequence, the first downlink transmission beam group corresponding to the random access preamble sequence from the plurality of downlink transmission beam groups, or the Determining, by the network device, the first downlink transmission corresponding to the physical random access channel resource from the plurality of downlink transmission beam groups according to a physical random access channel resource used to send the random access preamble sequence a beam group, or the network device determines, according to the random access preamble sequence and a physical random access channel resource used to send the random access preamble sequence, from the plurality of downlink transmission beam groups And the first downlink transmission beam group corresponding to the access preamble sequence and the physical random access channel resource.
  • the method further includes: the network device receiving the second information sent by the terminal device; a second information, the first downlink transmission beam is determined from the plurality of downlink transmission beam groups, where the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal.
  • the first downlink transmission beam is a beam in the first downlink transmission beam group
  • the network device receives the second message sent by the terminal device.
  • the method further includes: the network device sending third information to the terminal device, where the third information is used to indicate whether the terminal needs to send the second information to the network device; The receiving, by the network device, the second information sent by the terminal device, the network device receiving, by the network device, the second information that is sent by the terminal device according to the third information.
  • the third information is carried in a random access response message sent by the network device to the terminal device, and/or the second information is carried in a random access process, and is used to send the terminal device. Identified in the message.
  • the second information is an identifier of a signal carried on the first downlink transmission beam received by the terminal device, where a signal carried on the first downlink transmission beam is At least one of the signals: a primary synchronization signal, a secondary synchronization signal, a broadcast signal, a reference signal, and a signal carrying a system message.
  • a terminal device for performing the method of any of the above first aspect or any of the possible implementations of the first aspect.
  • the terminal device comprises means for performing the method of any of the above-described first aspect or any of the possible implementations of the first aspect.
  • a network device for performing the method of the second aspect or any possible implementation of the first aspect.
  • the network device comprises means for performing the method of any of the above-described second or second aspects of the second aspect.
  • a terminal device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the first aspect or the first aspect of the first aspect.
  • a network device comprising: a memory, a processor, an input interface, and an output interface.
  • the memory, the processor, the input interface, and the output interface are connected by a bus system.
  • the memory is for storing instructions for executing the memory stored instructions for performing the method of any of the above-described second aspect or any of the possible implementations of the second aspect.
  • a computer storage medium for storing the method in any of the above possible implementations of the first aspect or the first aspect, or any possible implementation of the second or second aspect
  • Computer software instructions for use in the method of the present invention which comprise a program designed to perform the above aspects.
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • FIG. 2 shows a schematic block diagram of a method for random access in an embodiment of the present application.
  • Figure 3 shows a flow chart of a random access procedure.
  • FIG. 4 shows another schematic block diagram of a method for transmitting a signal according to an embodiment of the present application.
  • FIG. 5 is a schematic block diagram of a terminal device for transmitting signals according to an embodiment of the present application.
  • FIG. 6 shows a schematic block diagram of a network device for transmitting signals according to an embodiment of the present application.
  • FIG. 7 shows another schematic block diagram of a terminal device for transmitting signals according to an embodiment of the present application.
  • FIG. 8 shows another schematic block diagram of a network device for transmitting signals according to an embodiment of the present application.
  • GSM Global System of Mobile communication
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal Mobile Telecommunication System
  • the technical solution of the embodiment of the present application can be applied to various communication systems based on non-orthogonal multiple access technologies, such as a sparse code multiple access (SRAMSE) system, and low.
  • the SCMA system and the LDS system may also be referred to as other names in the field of communication;
  • the technical solution of the embodiment of the present application may be applied to adopt non-orthogonal Multi-carrier transmission system with multiple access technology, for example, orthogonal frequency division multiplexing (Orthogonal Frequency Division Multiple Access) Frequency Division Multiplexing (abbreviated as "OFDM”), Filter Bank Multi-Carrier (FBMC), Generalized Frequency Division Multiplexing (GFDM), and Filtering A frequency-division-multiplexed (Filtered-OFDM, abbreviated as "F-OFDM”) system.
  • OFDM Orthogonal frequency division multiplex
  • the terminal device in the embodiment of the present application may refer to a user equipment (User Equipment, UE), an access terminal, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, a mobile device, a user terminal, a terminal, and a wireless device.
  • Communication device user agent or user device.
  • the access terminal may 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.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, where the network device may be a Base Transceiver Station (BTS) in GSM or CDMA, or may be a base station (NodeB, NB) in a WCDMA system. And may be an evolved base station (eNB or eNodeB) in the LTE system, or may be a wireless controller in a cloud radio access network (CRAN) scenario, or the network device may be The embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or the network device in the future evolved PLMN network.
  • BTS Base Transceiver Station
  • NodeB NodeB
  • NB base station
  • CRAN cloud radio access network
  • the embodiments of the present application are not limited to the relay station, the access point, the in-vehicle device, the wearable device, and the network device in the future 5G network or
  • FIG. 1 is a schematic diagram of an application scenario of an embodiment of the present application.
  • the communication system in FIG. 1 may include a terminal device 10 and a network device 20.
  • the network device 20 is configured to provide communication services for the terminal device 10 and access the core network.
  • the terminal device 10 accesses the network by searching for synchronization signals, broadcast signals, and the like transmitted by the network device 20, thereby performing communication with the network.
  • the arrows shown in FIG. 1 may represent uplink/downlink transmissions by a cellular link between the terminal device 10 and the network device 20.
  • the communication system of Figure 1 can employ multi-beam technology.
  • the network device may have multiple downlink transmit beams (DL Tx Beam), and the terminal device may have multiple downlink receive beams (DL Rx Beam); for the uplink, the terminal device may have multiple uplinks.
  • DL Tx Beam downlink transmit beams
  • DL Rx Beam downlink receive beams
  • the terminal device may have multiple uplinks.
  • UL Tx Beam With a transmit beam (UL Tx Beam), the network device can have multiple uplink receive beams (UL Rx Beam).
  • the network device uses each of the downlink transmit beams of all downlink transmit beams to transmit a downlink signal to the terminal device. For example, the network device may send D1 downlink signals to the terminal device by using D1 downlink transmit beams, and the terminal device may receive D1 downlink signals by using D1 downlink receive beams.
  • the overhead of system signaling is relatively large, especially in the case where the number of downlink transmission beams is large.
  • FIG. 2 is a schematic block diagram of a method 100 for transmitting signals provided by an embodiment of the present application.
  • the method 100 can be applied to the wireless communication system shown in FIG. 1, but the embodiment of the present application is not limited thereto.
  • the method 100 includes:
  • the terminal device receives a signal that is sent by the network device by using multiple downlink transmission beam groups.
  • the terminal device sends the first information to the network device, so that the network device determines, from the plurality of downlink transmission beam groups, a first downlink transmission beam group, and at least one downlink transmission of the multiple downlink transmission beam groups
  • the beam group includes a plurality of downlink transmission beams.
  • all downlink transmission beams may be grouped, and the terminal device may select a better downlink transmission beam by measuring signals of all received downlink transmission beams, and adopt The transmission characteristic corresponding to the downlink transmission beam is fed back to the network device, so that the network device can determine which group of downlink transmission beams the terminal expects according to the received transmission characteristics, and can only use part of the downlink transmission beam to transmit signals later. , reducing the overhead of system signaling.
  • the beam is physically invisible to the terminal device in the system.
  • the terminal device After receiving the signal transmitted by the network device through multiple beams, the terminal device can identify the difference of the beam by using different signals. That is to say, the terminal device can feed back to the network device by using the transmission characteristic indicated by the signal to the network device, and the network device can determine which group of downlink transmission beams is better according to the transmission characteristics fed back by the terminal device.
  • the network device may group the downlink transmission beams in the system according to certain criteria, such as the number of terminal devices in different downlink transmission beams, and may be recorded as beam group 1, beam group 2, ... beam group. N, wherein each beam group may include one or more downlink transmission beams.
  • the terminal device may select one or more signals by measurement, for example, may be a signal with better performance, and indicate to the network device by using the transmission characteristic indicated by the signal. The selected beam set.
  • the terminal device may receive a system message that is sent by using multiple beams, and each system message indicates a random access preamble sequence corresponding to the adopted beam, where the beam corresponding to the beam in the same beam group is randomly connected.
  • the incoming preamble sequence is the same, and the terminal device can initiate random access to the network device according to the random access preamble sequence indicated by the selected signal.
  • the network device can determine which beam group has better performance according to the received random access preamble sequence, and use this as a reference to send a subsequent signal to the terminal device.
  • the random access preamble sequence only serves as an identifier of the beam group, and other transmission characteristics may also be used.
  • Those skilled in the art understand that several bits may be used to explicitly indicate the selected beam group, the bit position. The number is related to the number of beam groups. For example, if there are 8 beam groups, then 3 bits can be used to indicate that 000 can be configured as beam group 0, 0001 as beam group 1 and so on. The foregoing is merely an example, and the embodiment of the present application is not limited thereto.
  • the first information is a random access preamble sequence, the random access preamble sequence, and/or a physical random access channel resource used to send the random access preamble sequence, and the first A downlink transmission beam group corresponds.
  • the network device may send the system message to the terminal device by using multiple downlink transmission beams, and the system message carried on the beam of the same beam group may indicate the same random access preamble sequence and/or the same physical random access channel resource. Similarly, system messages carried on beams of different beam groups indicate different random access preamble sequences and/or different physical random access channel resources.
  • the terminal device initiates random access to the network device by using a random access preamble sequence and/or a physical random access channel resource indicated by the system message carried on the selected downlink transmission beam.
  • the network device may determine, according to the received random access preamble sequence or the received physical random access channel resource, which one of the downlink transmission beam groups selected by the terminal device.
  • the random access technology is the primary content of communication between the terminal and the network in the mobile communication system.
  • the terminal initiates a connection request to the network through a random access procedure.
  • the random access procedure will be briefly described below with reference to FIG. As shown in Figure 3, it mainly includes the following contents:
  • Msg1 is first the transmission of the random access preamble.
  • the main purpose is that the network device can correctly estimate the transmission delay of the terminal device, and solve the conflict problem that multiple terminal devices simultaneously initiate the access request.
  • the feedback information sent by the network device to the terminal will include the transmission delay required for uplink synchronization and the access overload condition of the current system.
  • the network device also feeds back the uplink resource location allocated to the access terminal device to the terminal.
  • the terminal device will send its own Cell Radio Network Temporary Identifier (C-RNTI) on the designated uplink resource.
  • C-RNTI Cell Radio Network Temporary Identifier
  • the Msg4 and the network device feed back the conflict resolution information to the terminal device terminal.
  • the random access process will completely solve the conflict problem caused by the multi-terminal device requesting the access system at the same time.
  • the network device may group the random access preamble sequence and/or the physical random access channel resource according to the number of downlink transmission beams, and the system message transmitted on different downlink transmission beams indicates The random access preamble sequence and/or the physical random access channel resource are different. If the terminal device recommends a certain downlink transmission beam, random access is performed from the corresponding indication. For example, the network device sends its corresponding random access preamble sequence or uses its corresponding physical random access channel resource to send a random access preamble sequence, that is, the network device can completely determine the terminal device selection by using Msg1 in FIG. Downlink transmission beam.
  • the network device groups the random access preamble sequence and/or the physical random access channel resource according to the number of the divided downlink transmission beam groups, and the system message transmitted on the different downlink transmission beam groups indicates The random access preamble sequence and/or the physical random access channel resources are different, and the random access preamble sequence and/or the physical random access channel resource indicated by the system message transmitted on the beam of the same downlink transmission beam group is the same.
  • the terminal device recommends a certain downlink transmission beam
  • random access is performed from its corresponding indication.
  • the network device sends its corresponding random access preamble sequence or uses its corresponding physical random access channel resource to send a random access preamble sequence, that is, the network device can determine the terminal device selection by using Msg1 in FIG. Downlink transmission beam group.
  • the method further includes: the terminal device sending the second information to the network device, so that the network device determines the one of the plurality of downlink transmission beam groups a first downlink transmission beam, where the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal.
  • the terminal device may carry information indicating a certain downlink transmission beam selected by the terminal device in the next uplink message.
  • the terminal device may carry information indicating a certain downlink transmission beam selected by the terminal device in the next uplink message.
  • a certain downlink transmission beam selected here may be a beam in one of the selected downlink transmission beam groups, or may be a beam in another beam group.
  • the terminal device may move to another place, and the terminal device may find that the beam in the other group may be better, so the terminal device may The network device can directly report the related information of the selected downlink transmission beam to the network device, and then the network device can directly determine the downlink transmission beam according to the relevant information of the downlink transmission beam selected by the terminal device. If the terminal device feeds back a specific downlink transmission beam to the network device, the downlink transmission beam is still a previously selected better beam, and the terminal device may further send the downlink transmission beam group selected by the beam to the network device.
  • the logo in .
  • the identifier may also be an identifier of a plurality of beams received by the downlink transmission beam selected by the terminal device.
  • the terminal device may receive D2 downlink signals sent by the network device through the D2 downlink transmission beams before initiating the random access, and if the terminal device selects a better downlink signal in the D2 downlink signals, the terminal device The identifier of the selected downlink signal can be directly fed back to the network device.
  • the foregoing downlink signal may be a primary synchronization signal, a secondary synchronization signal, a broadcast signal, a reference signal, a signal carrying a system message, or some other new signal, or may be a combination of various signals. limited.
  • the foregoing second information may be carried in the Msg3 of FIG. 3, or may be carried in any uplink message after the random access succeeds. If the second information is carried in the Msg3 in FIG. 3, the network device may also send a random access response message to the terminal device by using all or part of the first downlink transmission beam group recommended by the terminal device, and the terminal device is receiving. After the random access response message, the Msg3 may be further sent to the network device, and the second information is carried in the Msg3.
  • the network device may further send the third information to the terminal device, where the terminal device needs to send the second information, for example, may be in a downlink after the random access.
  • the message carries one bit, 0 may be the second information to be sent, and 1 may be the second information.
  • the embodiment of the present application is not limited thereto.
  • the third message may be carried in Msg2 in FIG. 3, that is, in a random access response message.
  • the downlink transmission beam group and the downlink transmission beam indicated by the terminal device are only used as a reference for transmitting signals by the network device, and the network device does not necessarily transmit signals by using the downlink transmission beam group or the downlink transmission beam selected by the terminal device.
  • the network device may not need to further feedback the downlink transmission beam with the best performance in the downlink transmission beam group, and may directly use all or part of the beam in the group for downlink transmission. .
  • FIG. 4 shows a schematic block diagram of a method 200 for transmitting signals in an embodiment of the present application.
  • the method 200 can be applied to the wireless communication system shown in FIG. 1, but the embodiment of the present application is not limited thereto.
  • the method 200 includes:
  • the network device sends, by using multiple downlink transmission beam groups, a signal to the terminal device.
  • the network device receives the first information sent by the terminal device.
  • the network device determines, according to the first information, a first downlink transmission beam group from the plurality of downlink transmission beam groups, where at least one downlink transmission beam group of the multiple downlink transmission beam groups includes multiple downlink transmission beams. .
  • the method for transmitting a signal in the embodiment of the present application can reduce system signaling overhead.
  • the first information is a random access preamble sequence
  • the network device determines, according to the first information, the first downlink transmission beam group from the multiple downlink transmission beam groups, including Determining, by the network device, the first downlink transmission beam group corresponding to the random access preamble sequence from the plurality of downlink transmission beam groups according to the random access preamble sequence, or the network device is configured to send the random Accessing a physical random access channel resource of the preamble sequence, determining, by the plurality of downlink transmission beam groups, the first downlink transmission beam group corresponding to the physical random access channel resource, or the network device according to the random access a preamble sequence and a physical random access channel resource for transmitting the random access preamble sequence, and determining, from the plurality of downlink transmission beam groups, corresponding to the random access preamble sequence and the physical random access channel resource The first downlink transmission beam group.
  • the network device groups the random access preamble sequence and/or the physical random access channel resource according to the number of the divided downlink transmission beam groups, and transmits the system on different downlink transmission beam groups.
  • the random access preamble sequence and/or the physical random access channel resource indicated by the message are different, and the random access preamble sequence and/or the physical random access channel resource indicated by the system message transmitted on the beam of the same downlink transmission beam group is the same. Thereby the probability of random access collision can be reduced.
  • the method further includes: the network device receiving the second information sent by the terminal device; the network device according to the second information Determining, by the plurality of downlink transmission beam groups, the first downlink transmission beam, where the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal.
  • the first downlink transmission beam is a beam in the first downlink transmission beam group
  • the network device determines, according to the second information, the multiple downlink transmission beam groups.
  • the first downlink transmission beam includes: the network device, according to the first information and the second information, Determining the first downlink transmission beam from the plurality of downlink transmission beam groups.
  • the method before the network device receives the second information sent by the terminal device, the method further includes: the network device sending, to the terminal device, third information, where the third information is used to indicate the Whether the terminal needs to send the second information to the network device; the network device receiving the second information sent by the terminal device, the network device receiving the second information that is sent by the terminal device according to the third information.
  • the third information is carried in a random access response message sent by the network device to the terminal device, and/or the second information is carried in a random access process for sending.
  • the terminal device identifies the message.
  • the second information is an identifier of a signal carried by the terminal device, and the signal carried on the first downlink transmission beam is in the following signal.
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be implemented in the present application.
  • the implementation of the examples constitutes any limitation.
  • FIG. 5 shows a schematic block diagram of a terminal device 300 for transmitting signals according to an embodiment of the present application.
  • the terminal device 300 includes:
  • the first receiving unit 310 is configured to receive a signal that is sent by the network device by using multiple downlink transmission beam groups;
  • the first sending unit 320 is configured to send first information to the network device, so that the network device determines, from the plurality of downlink transmission beam groups, a first downlink transmission beam group, where at least one of the multiple downlink transmission beam groups A downlink transmission beam group includes a plurality of downlink transmission beams.
  • the terminal device for transmitting signals in the embodiment of the present application can reduce system signaling overhead.
  • the first information is a random access preamble sequence, the random access preamble sequence, and/or a physical random access channel resource used to send the random access preamble sequence, and the first A downlink transmission beam group corresponds.
  • the terminal device 300 further includes: a second sending unit 330, configured to send second information to the network device, so that the network device determines from the multiple downlink transmission beam groups.
  • the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal.
  • the first downlink transmission beam is a beam in the first downlink transmission beam group.
  • the terminal device further includes: a second receiving unit 340, configured to receive third information sent by the network device, where the third information is used to indicate whether the terminal needs to be sent to the network device Sending the second information; determining unit 350, configured to determine, according to the third information, whether to send the second information to the network device.
  • the third information is carried in a random access response message sent by the network device to the terminal device, and/or the second information is carried in a random access process for sending.
  • the terminal device identifies the message.
  • the second information is a signal identifier carried on the first downlink transmission beam received by the terminal device, where the signal carried on the first downlink transmission beam is in the following signal.
  • At least one type of signal a primary synchronization signal, a secondary synchronization signal, a broadcast signal, a reference signal, and a signal carrying a system message.
  • terminal device 300 for transmitting signals may correspond to the terminal device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the terminal device 300 are respectively implemented.
  • the corresponding processes of the terminal device in the method 100 shown in FIG. 2 and FIG. 3 are not described herein for brevity.
  • FIG. 6 shows a schematic block diagram of a network device 400 for transmitting signals in accordance with an embodiment of the present application.
  • the network device 400 includes:
  • the first sending unit 410 is configured to send a signal to the terminal device by using multiple downlink transmission beam groups;
  • the first receiving unit 420 is configured to receive first information sent by the terminal device
  • the first determining unit 430 is configured to determine, according to the first information, a first downlink transmission beam group from the plurality of downlink transmission beam groups, where at least one of the plurality of downlink transmission beam groups includes multiple Downlink transmission beam.
  • the terminal device for transmitting signals in the embodiment of the present application can reduce system signaling overhead.
  • the first information is a random access preamble sequence
  • the first determining unit 430 is specifically configured to: determine, according to the random access preamble sequence, the multiple downlink transmission beam groups. Determining the first downlink transmission beam group corresponding to the random access preamble sequence, or determining the first corresponding to the physical random access channel resource according to the physical random access channel resource used to send the random access preamble sequence Determining a random access preamble sequence and the physical random access channel resource according to the random access preamble sequence and the physical random access channel resource used to send the random access preamble sequence The first downlink transmission beam group corresponding to the two.
  • the network device 400 further includes: a second receiving unit 440, configured to receive second information sent by the terminal device, where the second information is used to indicate the multiple downlink transmission beam groups.
  • a first downlink transmission beam the first downlink transmission beam is a downlink transmission beam that is required by the terminal device for the network device to transmit a subsequent signal
  • the second determining unit 450 is configured to: according to the second information, The first downlink transmission beam is determined from a plurality of downlink transmission beam groups.
  • the first downlink transmission beam is a beam in the first downlink transmission beam group
  • the second determining unit 450 is specifically configured to: according to the second information, from the first The first downlink transmission beam is determined in a downlink transmission beam group.
  • the network device 400 further includes: a second sending unit 460, configured to send, to the terminal device, third information, where the third information is used to indicate whether the terminal needs to be sent to the network device.
  • Sending the second information the second receiving unit 440 is specifically configured to: receive the second information that is sent by the terminal device according to the third information.
  • the third information is carried in a random access response message sent by the network device to the terminal device, and/or the second information is carried in a random access process for sending.
  • the terminal device identifies the message.
  • the second information is an identifier of a signal carried by the terminal device, and the signal carried on the first downlink transmission beam is in the following signal.
  • the network device 400 for transmitting signals may correspond to the network device in the method embodiment of the present application, and the foregoing and other operations and/or functions of the respective units in the network device 400 are respectively implemented.
  • the corresponding process of the network device in the method 200 shown in FIG. 4 is It is concise and will not be repeated here.
  • the embodiment of the present application further provides a terminal device 500 for transmitting a signal, which may be the terminal device 300 in FIG. 3, which can be used to perform the method corresponding to the method 100 in FIG.
  • the content of the terminal device includes an input interface 510, an output interface 520, a processor 530, and a memory 540.
  • the input interface 510, the output interface 520, the processor 530, and the memory 540 can be connected by a bus system.
  • the memory 540 is configured to store programs, instructions or code.
  • the processor 530 is configured to execute a program, an instruction or a code in the memory 540 to control the input interface 510 to receive a signal, control the output interface 520 to send a signal, and complete the operations in the foregoing method embodiments.
  • the terminal device for transmitting signals in the embodiment of the present application can reduce system signaling overhead.
  • the processor 530 may be a central processing unit ("CPU"), and the processor 530 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 540 can include read only memory and random access memory and provides instructions and data to the processor 530. A portion of the memory 540 may also include a non-volatile random access memory. For example, the memory 540 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 530 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 540, and the processor 530 reads the information in the memory 540 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the first receiving unit 310 and the second receiving unit 340 in the terminal device 300 may be implemented by the input interface 510 in FIG. 7, and the first sending unit 320 and the second sending unit 330 in the terminal device 300. This may be implemented by the output interface 520 of FIG. 7, and the determining unit 350 in the terminal device 300 may be implemented by the processor 530 in FIG.
  • the embodiment of the present application further provides a network device 600 for transmitting signals.
  • the network device 600 can be the network device 400 of FIG. 4 that can be used to execute the content of the network device corresponding to the method 200 of FIG.
  • the network device 600 includes an input interface 610, an output interface 620, a processor 630, and a memory 640.
  • the input interface 610, the output interface 620, the processor 630, and the memory 640 can be connected by a bus system.
  • the memory 640 is used to store programs, instructions or code.
  • the processor 630 is configured to execute a program, an instruction or a code in the memory 640 to control the input interface 610 to receive a signal, control the output interface 620 to send a signal, and complete the operations in the foregoing method embodiments.
  • the network device for transmitting signals in the embodiment of the present application can reduce system signaling overhead.
  • the processor 630 may be a central processing unit ("CPU"), and the processor 630 may also be other general-purpose processors, digital signal processors (DSPs). , an application specific integrated circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, and the like.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the memory 640 can include read only memory and random access memory and provides instructions and data to the processor 630. A portion of the memory 640 can also include a non-volatile random access memory. For example, the memory 640 can also store information of the device type.
  • each content of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 630 or an instruction in a form of software.
  • the content of the method disclosed in the embodiments of the present application may be directly implemented as a hardware processor, or may be performed by a combination of hardware and software modules in the processor.
  • the software module can be located in a conventional storage medium such as random access memory, flash memory, read only memory, programmable read only memory or electrically erasable programmable memory, registers, and the like.
  • the storage medium is located in the memory 640, and the processor 630 reads the information in the memory 640 and combines the hardware to complete the contents of the above method. To avoid repetition, it will not be described in detail here.
  • the first determining unit 430 and the second determining unit 450 in the network device 400 may be implemented by the processor 630 of FIG. 8.
  • the first sending unit 410 and the second sending unit 460 may be implemented by FIG.
  • the output interface 620 is implemented, and the first receiving unit 420 and the second receiving unit 440 can be implemented by the input interface 610 of FIG.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or may be Integrate into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • This functionality if implemented as a software functional unit and sold or used as a standalone product, can be stored on a computer readable storage medium.
  • the technical solution of the present application which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the method of various embodiments of the present application.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

本申请实施例公开了一种用于传输信号的方法、终端设备和网络设备，该方法包括：终端设备接收网络设备采用多个下行传输波束组发送的信号；该终端设备向该网络设备发送第一信息，以便于该网络设备从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。本申请实施例的方法、终端设备和网络设备，能够降低系统信令开销。

Description

一种用于传输信号的方法、终端设备和网络设备 技术领域
本申请实施例涉及通信领域，并且更具体地，涉及一种用于传输信号的方法、终端设备和网络设备。
背景技术
在多波束(multi-beam)系统中，终端设备与网络设备可以通过波束赋形训练多个波束，不同的波束可以对应不同的方向和不同的覆盖区域。通常情况下，网络设备不知道下行传输波束的性能，而采用系统中的全部下行传输波束向终端设备发送信号，导致系统信令开销较大。
发明内容
有鉴于此，本申请实施例提供了一种用于传输信号的方法、终端设备和网络设备，能够降低系统信令开销。
第一方面，提供了一种用于传输信号的方法，该方法包括：终端设备接收网络设备采用多个下行传输波束组发送的信号；该终端设备向该网络设备发送第一信息，以便于该网络设备从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
其中，每个下行传输波束组包括至少一个下行传输波束。该第一信息可以是隐性指示也可以是显性指示，显性指示可以是几个比特位进行指示，隐性指示则可以将下行传输波束组与传输特性对应起来，通过某种传输特性向网络设备反馈。
另外，波束在系统中对于终端设备而言，物理上是不可见的，终端设备在接收到网络设备通过多波束发送的信号之后，可以通过信号的不同来识别波束的不同。也就是说终端设备向网络设备可以通过某个信号指示的传输特性向网络设备反馈，网络设备根据终端设备反馈的传输特性，即可确定具体是哪一个组的下行传输波束较佳。
在下行传输波束的数量为多个时，通过传输特性将下行传输波束进行分组，终端设备在接收到多个下行传输波束发送的信号，可以从中选择传输特 性较好的信号，并将该信号采用的传输特性通知给网络设备，网络设备接收到该传输特性之后，即可确定出对应的下行传输波束组，使得网络设备后续只采用这部分波束进行信号的传输，从而降低了系统信令开销。
在一种可能的实现方式中，该第一信息为随机接入前导序列，该随机接入前导序列和/或用于发送该随机接入前导序列的物理随机接入信道资源与该第一下行传输波束组对应。
将随机接入前导序列和/或物理随机接入信道资源与下行传输波束组对应起来，使得每组的随机接入前导序列和/或物理随机接入信道资源的划分粒度比较大，从而能够减少随机接入的碰撞概率。
其中，通过第一信息向网络设备指示第一下行传输波束组，可以是第一信息直接指示，也可以是第一信息的其他传输特性，例如占用的频域资源和/或时域资源等。
在一种可能的实现方式中，在该终端设备向该网络设备发送第一信息之后，该方法还包括：该终端设备向该网络设备发送第二信息，以便于该网络设备从该多个下行传输波束组中确定第一下行传输波束，该第一下行传输波束为该终端设备期望的用于该网络设备传输后续信号的下行传输波束。
在一种可能的实现方式中，该第一下行传输波束为该第一下行传输波束组中的波束。
可选地，该反馈的第一下行传输波束可以是终端设备选择的传输性能最佳的波束。
可选地，该第一下行传输波束也可以不属于第一下行传输波束组。例如，终端设备在向网络设备指示第一下行传输波束组之后，发现性能最佳的波束属于其他组，那么终端设备可以直接向网络设备反馈该第一下行传输波束。
通过两步指示方法向网络设备反馈终端设备期望的下行传输波束，能够极大地减少信令开销。并且通过随机接入前导序列和/或物理随机接入信道资源直接指示波束组的方式，能够减少随机接入碰撞概率。
在一种可能的实现方式中，在该终端设备向该网络设备发送第二信息之前，该方法还包括：该终端设备接收该网络设备发送的第三信息，该第三信息用于指示该终端是否需要向该网络设备发送该第二信息；该终端设备根据该第三信息，决定是否向该网络设备发送该第二信息。
进一步地，该第三信息承载于该网络设备向该终端设备发送的随机接入 响应消息中，和/或该第二信息承载于随机接入过程中用于发送该终端设备标识的消息中。
在一种可能的实现方式中，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
第二方面，提供了一种用于传输信号的方法，该方法包括：网络设备采用多个下行传输波束组向终端设备发送信号；该网络设备接收终端设备发送的第一信息；所述网络设备根据所述第一信息，从所述多个下行传输波束组中确定第一下行传输波束组，所述多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
在一种可能的实现方式中，所述第一信息为随机接入前导序列，所述网络设备根据所述第一信息，从所述多个下行传输波束组中确定第一下行传输波束组，包括：所述网络设备根据所述随机接入前导序列，从所述多个下行传输波束组中确定与所述随机接入前导序列对应的所述第一下行传输波束组，或所述网络设备根据用于发送所述随机接入前导序列的物理随机接入信道资源，从所述多个下行传输波束组中确定与所述物理随机接入信道资源对应的所述第一下行传输波束组，或所述网络设备根据所述随机接入前导序列和用于发送所述随机接入前导序列的物理随机接入信道资源，从所述多个下行传输波束组中确定与所述随机接入前导序列和所述物理随机接入信道资源这两者对应的所述第一下行传输波束组。
在一种可能的实现方式中，在所述网络设备接收终端设备发送的第一信息之后，所述方法还包括：所述网络设备接收终端设备发送的第二信息；所述网络设备根据所述第二信息，从所述多个下行传输波束组中确定第一下行传输波束，所述第一下行传输波束为所述终端设备期望的用于所述网络设备传输后续信号的下行传输波束。
在一种可能的实现方式中，所述第一下行传输波束为所述第一下行传输波束组中的波束，所述网络设备根据所述第二信息，从所述多个下行传输波束组中确定第一下行传输波束，包括：所述网络设备根据所述第二信息，从所述第一下行传输波束组中确定所述第一下行传输波束。
在一种可能的实现方式中，在所述网络设备接收终端设备发送的第二信 息之前，所述方法还包括：所述网络设备向所述终端设备发送第三信息，所述第三信息用于指示所述终端是否需要向所述网络设备发送所述第二信息；所述网络设备接收终端设备发送的第二信息，包括：所述网络设备接收所述终端设备根据所述第三信息发送的所述第二信息。
进一步地，所述第三信息承载于所述网络设备向所述终端设备发送的随机接入响应消息中，和/或所述第二信息承载于随机接入过程中用于发送所述终端设备标识的消息中。
在一种可能的实现方式中，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号的标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
第三方面，提供了一种终端设备，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。具体地，该终端设备包括用于执行上述第一方面或第一方面的任意可能的实现方式中的方法的单元。
第四方面，提供了一种网络设备，用于执行上述第二方面或第一方面的任意可能的实现方式中的方法。具体地，该网络设备包括用于执行上述第二方面或第二方面的任意可能的实现方式中的方法的单元。
第五方面，提供了一种终端设备，该终端设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第一方面或第一方面的任意可能的实现方式中的方法。
第六方面，提供了一种网络设备，该网络设备包括：存储器、处理器、输入接口和输出接口。其中，存储器、处理器、输入接口和输出接口通过总线系统相连。该存储器用于存储指令，该处理器用于执行该存储器存储的指令，用于执行上述第二方面或第二方面的任意可能的实现方式中的方法。
第七方面，提供了一种计算机存储介质，用于储存为执行上述第一方面或第一方面的任意可能的实现方式中的方法，或者上述第二方面或第二方面的任意可能的实现方式中的方法所用的计算机软件指令，其包含用于执行上述方面所设计的程序。
本申请的这些方面或其他方面在以下实施例的描述中会更加简明易懂。
附图说明
图1示出了本申请实施例一个应用场景的示意图。
图2示出了本申请实施例的用于随机接入的方法的示意性框图。
图3示出了随机接入过程的流程图。
图4示出了本申请实施例的用于传输信号的方法的另一示意性框图。
图5示出了本申请实施例的用于传输信号的终端设备的示意性框图。
图6示出了本申请实施例的用于传输信号的网络设备的示意性框图。
图7示出了本申请实施例的用于传输信号的终端设备的另一示意性框图。
图8示出了本申请实施例的用于传输信号的网络设备的另一示意性框图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。
应理解，本申请实施例的技术方案可以应用于各种通信系统，例如：全球移动通讯(Global System of Mobile communication，简称为“GSM”)系统、码分多址(Code Division Multiple Access，简称为“CDMA”)系统、宽带码分多址(Wideband Code Division Multiple Access，简称为“WCDMA”)系统、通用分组无线业务(General Packet Radio Service，简称为“GPRS”)、长期演进(Long Term Evolution，简称为“LTE”)系统、LTE频分双工(Frequency Division Duplex，简称为“FDD”)系统、LTE时分双工(Time Division Duplex，简称为“TDD”)、通用移动通信系统(Universal Mobile Telecommunication System，简称为“UMTS”)、全球互联微波接入(Worldwide Interoperability for Microwave Access，简称为“WiMAX”)通信系统或未来的5G系统等。
特别地，本申请实施例的技术方案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，简称为“SCMA”)系统、低密度签名(Low Density Signature，简称为“LDS”)系统等，当然SCMA系统和LDS系统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，简称为“OFDM”)、滤波器组多载波(Filter Bank Multi-Carrier，简称为“FBMC”)、通用频分复用(Generalized Frequency Division Multiplexing，简称为“GFDM”)、滤波正交频分复用(Filtered-OFDM，简称为“F-OFDM”)系统等。
本申请实施例中的终端设备可以指用户设备(User Equipment，UE)、接入终端、用户单元、用户站、移动站、移动台、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置。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用陆地移动通信网络(Public Land Mobile Network，PLMN)中的终端设备等，本申请实施例并不限定。
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GSM或CDMA中的基站(Base Transceiver Station，BTS)，也可以是WCDMA系统中的基站(NodeB，NB)，还可以是LTE系统中的演进型基站(Evolutional 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，本申请实施例并不限定。
图1是本申请实施例一个应用场景的示意图。图1中的通信系统可以包括终端设备10和网络设备20。网络设备20用于为终端设备10提供通信服务并接入核心网，终端设备10通过搜索网络设备20发送的同步信号、广播信号等而接入网络，从而进行与网络的通信。图1中所示出的箭头可以表示通过终端设备10与网络设备20之间的蜂窝链路进行的上/下行传输。
图1中的通信系统可以采用多波束技术。具体地，对于下行链路，网络设备可以具有多个下行发射波束(DL Tx Beam)，终端设备可以具有多个下行接收波束(DL Rx Beam)；对于上行链路，终端设备可以具有多个上行发射波束(UL Tx Beam)，网络设备可以具有多个上行接收波束(UL Rx Beam)。
通常，由于网络设备并不清楚哪些下行传输波束的性能比较好，因此为 了提高信号的增益，网络设备采用所有下行发射波束中的每个下行发射波束向终端设备发送下行信号。例如，网络设备可以采用D1个下行发射波束向终端设备发送D1个下行信号，终端设备可以采用D1个下行接收波束接收发送的D1个下行信号。这样导致系统信令的开销比较大，尤其是在下行传输波束数量较多的情况下。
具体地，图2示出了本申请实施例提供的用于传输信号的方法100的示意性框图。该方法100可以应用于图1所示的无线通信系统中，但本申请实施例并不限于此。该方法100包括：
S110，终端设备接收网络设备采用多个下行传输波束组发送的信号；
S120，该终端设备向该网络设备发送第一信息，以便于该网络设备从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
具体地，为了降低系统信令的开销，可以将所有的下行传输波束分组，终端设备可以通过对接收到的所有下行传输波束的信号进行测量，可以选择出来较佳的一个下行传输波束，并采用与该下行传输波束对应的传输特性向网络设备反馈，从而网络设备可以根据接收的传输特性确定终端期待的是哪一组下行传输波束，并且可以在后续只采用部分的下行传输波束进行信号的传输，减少了系统信令的开销。
应理解，波束在系统中对于终端设备而言，物理上是不可见的，终端设备在接收到网络设备通过多波束发送的信号之后，可以通过信号的不同来识别波束的不同。也就是说终端设备向网络设备可以通过某个信号指示的传输特性向网络设备反馈，网络设备根据终端设备反馈的传输特性，即可确定具体是哪一个组的下行传输波束较佳。
可选地，网络设备可以根据一定的准则，例如不同下行传输波束下的终端设备的数量等因素，把系统中的下行传输波束进行分组，可以记为波束组1、波束组2……波束组N，其中，每个波束组可以包括一个或多个下行传输波束。终端设备在接收到网络设备根据多个波束发送的信号之后，终端设备可以通过测量选择一个或多个信号，例如可以是性能较好的信号，并通过该信号所指示的传输特性向网络设备指示该选择的波束组。举例来说，终端设备可以接收到采用多个波束发送的系统消息，每个系统消息中都指示采用的波束对应的随机接入前导序列，其中，同一个波束组内的波束对应的随机接 入前导序列相同，那么终端设备可以根据选择的信号所指示的随机接入前导序列，向网络设备发起随机接入。网络设备根据接收到的随机接入前导序列，即可判断出来是哪一个波束组的性能比较好，并以此作为参考向终端设备发送后续的信号。
应理解，随机接入前导序列仅仅作为波束组的一种标识，还可以采用其他的一些传输特性，本领域技术人员理解，可以采用几个比特位来显性指示选择的波束组，比特位的数量与波束组的数量有关，例如，若波束组有8个，那么可以采用3个比特位来指示，可以将000配置为波束组0，0001配置为波束组1等。上述仅仅是一种举例说明，本申请实施例并不限于此。
可选地，在本申请实施例中，该第一信息为随机接入前导序列，该随机接入前导序列和/或用于发送该随机接入前导序列的物理随机接入信道资源与该第一下行传输波束组对应。
具体地，网络设备可以采用多个下行传输波束向终端设备发送系统消息，同一个波束组的波束上承载的系统消息可以指示相同的随机接入前导序列和/或相同的物理随机接入信道资源，同样地，不同波束组的波束上承载的系统消息指示不同的随机接入前导序列和/或不同的物理随机接入信道资源。接下来，终端设备通过选择的下行传输波束上承载的系统消息指示的随机接入前导序列和/或物理随机接入信道资源，向网络设备发起随机接入。网络设备可以根据接收到的随机接入前导序列或者接收到物理随机接入信道资源确定出来终端设备选择的下行传输波束组是哪一个。
随机接入技术是移动通信系统中终端与网络进行通信的首要内容。无线蜂窝网络中终端通过随机接入过程向网络发起连接请求。为了便于理解，下面将结合图3简单介绍随机接入过程。如图3所示，主要包括以下几个内容：
Msg1、首先是随机接入前导信号的发送。主要目的为网络设备可以对终端设备的传输时延进行正确估计，并且解决多个终端设备同时发起接入请求的冲突问题。
Msg2、网络设备向终端发送的反馈信息中将包括上行同步所需的传输时延，以及当前系统的接入过载状况。除此之外，网络设备还将为接入终端设备分配的上行资源位置反馈给终端。
Msg3、终端设备将在指定的上行资源上发送本身的小区无线网络临时标识(Cell Radio Network Temporary Identifier,C-RNTI)。
Msg4、网络设备将冲突解决信息反馈给终端设备终端。至此随机接入过程将完全解决多终端设备同时请求接入系统带来的冲突问题。
在下行传输波束数量较少的情况下，网络设备可以根据下行传输波束的数量，将随机接入前导序列和/或物理随机接入信道资源分组，不同的下行传输波束上传输的系统消息指示的随机接入前导序列和/或物理随机接入信道资源不同，如果终端设备推荐某一个下行传输波束，则从其对应的指示中进行随机接入。例如，向网络设备发送其对应的随机接入前导序列或采用其对应的物理随机接入信道资源发送随机接入前导序列，也就是说网络设备可以通过图3中的Msg1完全确定出终端设备选择的下行传输波束。
在下行传输波束数量较多的情况下，若采用上述的划分方式，随机接入前导序列和/或物理随机接入信道资源的划分粒度较小，从而会造成随机接入冲突的增加。为了降低随机接入碰撞概率，网络设备根据划分的下行传输波束组的数量，将随机接入前导序列和/或物理随机接入信道资源分组，不同的下行传输波束组上传输的系统消息指示的随机接入前导序列和/或物理随机接入信道资源不同，同一个下行传输波束组的波束上传输的系统消息指示的随机接入前导序列和/或物理随机接入信道资源相同。类似地，如果终端设备推荐某一个下行传输波束，则从其对应的指示中进行随机接入。例如，向网络设备发送其对应的随机接入前导序列或采用其对应的物理随机接入信道资源发送随机接入前导序列，也就是说网络设备可以通过图3中的Msg1确定出终端设备选择的下行传输波束组。
进一步地，在该终端设备向该网络设备发送第一信息之后，该方法还包括：该终端设备向该网络设备发送第二信息，以便于该网络设备从该多个下行传输波束组中确定该第一下行传输波束，该第一下行传输波束为该终端设备期望的用于该网络设备传输后续信号的下行传输波束。
终端设备在向网络设备指示其选择的某一下行传输波束组之后，终端设备可以在接下来的上行消息中携带指示终端设备选择的某一下行传输波束的信息。本领域技术人员理解，可以采用几个比特位显性指示其中的某一下行传输波束。应理解，这里选择的某一下行传输波束可以是上述选择的某个下行传输波束组中的波束，也可以是其他波束组中的波束。举例来说，若终端设备向网络设备指示第一下行传输波束组之后，终端设备可能移动到其他地方，此时终端设备发现别的组内的波束可能更好一些，因此终端设备可以 直接向网络设备反馈其选择的下行传输波束的相关信息，那么网络设备就可以直接根据终端设备选择的下行传输波束的相关信息，确定出来该下行传输波束。若终端设备在向网络设备反馈具体地某一个下行传输波束时，该下行传输波束仍然是之前选择的较好的波束，终端设备可以进一步地向网络设备发送该波束在前面选择的下行传输波束组中的标识。该标识也可以是终端设备选择的下行传输波束在之前接收到的多个波束中的标识。例如，终端设备在发起随机接入之前，可以接收网络设备通过D2个下行传输波束发送的D2个下行信号，若终端设备在该D2个下行信号中选择某一个较好的下行信号时，终端设备可以直接将该选择的下行信号的标识反馈给网络设备。
应理解，上述下行信号可以是主同步信号、辅同步信号、广播信号、参考信号、承载系统消息的信号或者其他一些新的信号，还可以是各种信号的组合本申请实施例对此不够成限定。
还应理解，上述第二信息可以承载在图3的Msg3中，也可以承载在随机接入成功之后的任何一条上行消息中。若上述第二信息承载在图3中的Msg3中，网络设备还可以采用终端设备推荐的第一下行传输波束组中的所有或部分波束向终端设备发送随机接入响应消息，终端设备在接收到随机接入响应消息之后，可以进一步地向网络设备发送Msg3，在Msg3中携带该第二信息。
具体地，网络设备还可以在接收到终端设备发送的第一信息之后，向终端设备发送第三信息，具体指示终端设备是否需要发送第二信息，例如，可以在随机接入之后的某条下行消息中携带1个比特位，0可以为需要发送第二信息，1可以是不需要发送第二信息，仅以此举例进行说明，本申请实施例并不限于此。
可选地，该第三消息可以承载于图3中的Msg2中，即随机接入响应消息中。
还应理解，终端设备指示的下行传输波束组和下行传输波束只是作为网络设备发送信号的参考，网络设备并不一定就采用终端设备选择的下行传输波束组或下行传输波束发送信号。另外，网络设备在确定某一个下行传输波束组之后，也可以不需要终端设备进一步反馈该下行传输波束组中性能最佳的下行传输波束，可以直接采用该组内的全部或部分波束进行下行传输。
图4示出了本申请实施例的用于传输信号的方法200的示意性框图。该 方法200可以应用于图1所示的无线通信系统中，但本申请实施例并不限于此。该方法200包括：
S210，网络设备采用多个下行传输波束组向终端设备发送信号；
S210，该网络设备接收终端设备发送的第一信息；
S220，该网络设备根据该第一信息，从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
因此，本申请实施例的用于传输信号的方法，能够降低系统信令开销。
可选地，在本申请实施例中，该第一信息为随机接入前导序列，该网络设备根据该第一信息，从该多个下行传输波束组中确定第一下行传输波束组，包括：该网络设备根据该随机接入前导序列，从该多个下行传输波束组中确定与该随机接入前导序列对应的该第一下行传输波束组，或该网络设备根据用于发送该随机接入前导序列的物理随机接入信道资源，从该多个下行传输波束组中确定与该物理随机接入信道资源对应的该第一下行传输波束组，或该网络设备根据该随机接入前导序列和用于发送该随机接入前导序列的物理随机接入信道资源，从该多个下行传输波束组中确定与该随机接入前导序列和该物理随机接入信道资源这两者对应的该第一下行传输波束组。
在下行传输波束数量较多的情况下，网络设备根据划分的下行传输波束组的数量，将随机接入前导序列和/或物理随机接入信道资源分组，不同的下行传输波束组上传输的系统消息指示的随机接入前导序列和/或物理随机接入信道资源不同，同一个下行传输波束组的波束上传输的系统消息指示的随机接入前导序列和/或物理随机接入信道资源相同。从而能够降低随机接入碰撞概率。
可选地，在本申请实施例中，在该网络设备接收终端设备发送的第一信息之后，该方法还包括：该网络设备接收终端设备发送的第二信息；该网络设备根据该第二信息，从该多个下行传输波束组中确定该第一下行传输波束，该第一下行传输波束为该终端设备期望的用于该网络设备传输后续信号的下行传输波束。
可选地，在本申请实施例中，该第一下行传输波束为该第一下行传输波束组中的波束，该网络设备根据该第二信息，从该多个下行传输波束组中确定该第一下行传输波束，包括：该网络设备根据该第一信息和该第二信息， 从该多个下行传输波束组中确定该第一下行传输波束。
可选地，在本申请实施例中，在该网络设备接收终端设备发送的第二信息之前，该方法还包括：该网络设备向该终端设备发送第三信息，该第三信息用于指示该终端是否需要向该网络设备发送该第二信息；该网络设备接收终端设备发送的第二信息，包括：该网络设备接收该终端设备根据该第三信息发送的该第二信息。
可选地，在本申请实施例中，该第三信息承载于该网络设备向该终端设备发送的随机接入响应消息中，和/或该第二信息承载于随机接入过程中用于发送该终端设备标识的消息中。
可选地，在本申请实施例中，该第二信息为该终端设备接收的该第一下行传输波束上承载的信号的标识，该第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
应理解，网络设备描述的网络设备与终端设备的交互及相关特性、功能等与终端设备的相关特性、功能相应。也就是说，终端设备向网络设备发送什么信息，网络设备相应地就会接收什么信息。为了简洁，在此不再赘述。
还应理解，在本申请的各种实施例中，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。
上文中详细描述了根据本申请实施例的用于传输信号的方法，下面将结合图5至图8，描述根据本申请实施例的用于传输信号的装置，方法实施例所描述的技术特征适用于以下装置实施例。
图5示出了根据本申请实施例的用于传输信号的终端设备300的示意性框图。如图5所示，该终端设备300包括：
第一接收单元310，用于接收网络设备采用多个下行传输波束组发送的信号；
第一发送单元320，用于向该网络设备发送第一信息，以便于该网络设备从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
因此，本申请实施例的用于传输信号的终端设备，能够降低系统信令开销。
可选地，在本申请实施例中，该第一信息为随机接入前导序列，该随机接入前导序列和/或用于发送该随机接入前导序列的物理随机接入信道资源与该第一下行传输波束组对应。
可选地，在本申请实施例中，该终端设备300还包括：第二发送单元330，用于向该网络设备发送第二信息，以便于该网络设备从该多个下行传输波束组中确定该第一下行传输波束，该第一下行传输波束为该终端设备期望的用于该网络设备传输后续信号的下行传输波束。
可选地，在本申请实施例中，该第一下行传输波束为该第一下行传输波束组中的波束。
可选地，在本申请实施例中，该终端设备还包括：第二接收单元340，用于接收该网络设备发送的第三信息，该第三信息用于指示该终端是否需要向该网络设备发送该第二信息；确定单元350，用于根据该第三信息，决定是否向该网络设备发送该第二信息。
可选地，在本申请实施例中，该第三信息承载于该网络设备向该终端设备发送的随机接入响应消息中，和/或该第二信息承载于随机接入过程中用于发送该终端设备标识的消息中。
可选地，在本申请实施例中，该第二信息为该终端设备接收的该第一下行传输波束上承载的信号标识，该第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
应理解，根据本申请实施例的用于传输信号的终端设备300可对应于本申请方法实施例中的终端设备，并且终端设备300中的各个单元的上述和其它操作和/或功能分别为了实现图2和图3所示方法100中终端设备的相应流程，为了简洁，在此不再赘述。
图6示出了根据本申请实施例的用于传输信号的网络设备400的示意性框图。如图6所示，该网络设备400包括：
第一发送单元410，用于采用多个下行传输波束组向终端设备发送信号；
第一接收单元420，用于接收终端设备发送的第一信息；
第一确定单元430，用于根据该第一信息，从该多个下行传输波束组中确定第一下行传输波束组，该多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
因此，本申请实施例的用于传输信号的终端设备，能够降低系统信令开销。
可选地，在本申请实施例中，该第一信息为随机接入前导序列，该第一确定单元430具体用于：根据该随机接入前导序列，从该多个下行传输波束组中确定与该随机接入前导序列对应的该第一下行传输波束组，或根据用于发送该随机接入前导序列的物理随机接入信道资源，确定与该物理随机接入信道资源对应的该第一下行传输波束组，或根据该随机接入前导序列和用于发送该随机接入前导序列的物理随机接入信道资源，确定与该随机接入前导序列和该物理随机接入信道资源这两者对应的该第一下行传输波束组。
可选地，在本申请实施例中，该网络设备400还包括：第二接收单元440，用于接收终端设备发送的第二信息，该第二信息用于指示该多个下行传输波束组中的第一下行传输波束，该第一下行传输波束为该终端设备期望的用于该网络设备传输后续信号的下行传输波束；第二确定单元450，用于根据该第二信息，从该多个下行传输波束组中确定该第一下行传输波束。
可选地，在本申请实施例中，该第一下行传输波束为该第一下行传输波束组中的波束，该第二确定单元450具体用于：根据该第二信息，从该第一下行传输波束组中确定该第一下行传输波束。
可选地，在本申请实施例中，该网络设备400还包括：第二发送单元460，用于向该终端设备发送第三信息，该第三信息用于指示该终端是否需要向该网络设备发送该第二信息；该第二接收单元440具体用于：接收该终端设备根据该第三信息发送的该第二信息。
可选地，在本申请实施例中，该第三信息承载于该网络设备向该终端设备发送的随机接入响应消息中，和/或该第二信息承载于随机接入过程中用于发送该终端设备标识的消息中。
可选地，在本申请实施例中，该第二信息为该终端设备接收的该第一下行传输波束上承载的信号的标识，该第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
应理解，根据本申请实施例的用于传输信号的网络设备400可对应于本申请方法实施例中的网络设备，并且网络设备400中的各个单元的上述和其它操作和/或功能分别为了实现图4所示方法200中网络设备的相应流程，为 了简洁，在此不再赘述。
如图7所示，本申请实施例还提供了一种用于传输信号的终端设备500，该终端设备500可以是图3中的终端设备300，其能够用于执行与图2中方法100对应的终端设备的内容。该终端设备500包括：输入接口510、输出接口520、处理器530以及存储器540，该输入接口510、输出接口520、处理器530和存储器540可以通过总线系统相连。所述存储器540用于存储包括程序、指令或代码。所述处理器530，用于执行所述存储器540中的程序、指令或代码，以控制输入接口510接收信号、控制输出接口520发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的用于传输信号的终端设备，能够降低系统信令开销。
应理解，在本申请实施例中，该处理器530可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器530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)、现成可编程门阵列(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。
该存储器540可以包括只读存储器和随机存取存储器，并向处理器530提供指令和数据。存储器540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540还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器530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内容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模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器540，处理器530读取存储器540中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，终端设备300中的第一接收单元310和第二接收单元340可以由图7中的输入接口510实现，终端设备300中的第一发送单元320和第二发送单元330可以由图7的输出接口520实现，终端设备300中的确定单元350可以由图7中的处理器530实现。
如图8所示，本申请实施例还提供了一种用于传输信号的网络设备600， 该网络设备600可以是图4中的网络设备400，其能够用于执行与图4中方法200对应的网络设备的内容。该网络设备600包括：输入接口610、输出接口620、处理器630以及存储器640，该输入接口610、输出接口620、处理器630和存储器640可以通过总线系统相连。所述存储器640用于存储包括程序、指令或代码。所述处理器630，用于执行所述存储器640中的程序、指令或代码，以控制输入接口610接收信号、控制输出接口620发送信号以及完成前述方法实施例中的操作。
因此，本申请实施例的用于传输信号的网络设备，能够降低系统信令开销。
应理解，在本申请实施例中，该处理器630可以是中央处理单元(Central Processing Unit，简称为“CPU”)，该处理器630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)、现成可编程门阵列(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。
该存储器640可以包括只读存储器和随机存取存储器，并向处理器630提供指令和数据。存储器640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640还可以存储设备类型的信息。
在实现过程中，上述方法的各内容可以通过处理器630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内容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模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器640，处理器630读取存储器640中的信息，结合其硬件完成上述方法的内容。为避免重复，这里不再详细描述。
一个具体的实施方式中，网络设备400中的第一确定单元430和第二确定单元450可以用图8的处理器630实现，第一发送单元410和第二发送单元460可以由图8中的输出接口620实现，第一接收单元420和第二接收单元440可以由图8的输入接口610实现。
本领域普通技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，取决于技术方案的特 定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
所属领域的技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，该单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
该作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
该功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本申请各个实施例该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(ROM，Read-Only Memory)、随机存取存储器(RAM，Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护 范围应该以权利要求的保护范围为准。

Claims (28)

  1. 一种用于传输信号的方法，其特征在于，包括：
    终端设备接收网络设备采用多个下行传输波束组发送的信号；
    所述终端设备向所述网络设备发送第一信息，以便于所述网络设备从所述多个下行传输波束组中确定第一下行传输波束组，所述多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
  2. 根据权利要求1所述的方法，其特征在于，所述第一信息为随机接入前导序列，所述随机接入前导序列和/或用于发送所述随机接入前导序列的物理随机接入信道资源与所述第一下行传输波束组对应。
  3. 根据权利要求1或2所述的方法，其特征在于，在所述终端设备向所述网络设备发送第一信息之后，所述方法还包括：
    所述终端设备向所述网络设备发送第二信息，以便于所述网络设备从所述多个下行传输波束组中确定第一下行传输波束，所述第一下行传输波束为所述终端设备期望的用于所述网络设备传输后续信号的下行传输波束。
  4. 根据权利要求3所述的方法，其特征在于，所述第一下行传输波束为所述第一下行传输波束组中的波束。
  5. 根据权利要求3或4所述的方法，其特征在于，在所述终端设备向所述网络设备发送第二信息之前，所述方法还包括：
    所述终端设备接收所述网络设备发送的第三信息，所述第三信息用于指示所述终端设备是否需要向所述网络设备发送所述第二信息；
    所述终端设备根据所述第三信息，决定是否向所述网络设备发送所述第二信息。
  6. 根据权利要求5所述的方法，其特征在于，所述第三信息承载于所述网络设备向所述终端设备发送的随机接入响应消息中，和/或所述第二信息承载于随机接入过程中用于发送所述终端设备标识的消息中。
  7. 根据权利要求3至6中任一项所述的方法，其特征在于，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
  8. 一种用于传输信号的方法，其特征在于，包括：
    网络设备采用多个下行传输波束组向终端设备发送信号；
    网络设备接收终端设备发送的第一信息；
    所述网络设备根据所述第一信息，从所述多个下行传输波束组中确定第一下行传输波束组，所述多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
  9. 根据权利要求8所述的方法，其特征在于，所述第一信息为随机接入前导序列，所述网络设备根据所述第一信息，从所述多个下行传输波束组中确定第一下行传输波束组，包括：
    所述网络设备根据所述随机接入前导序列，从所述多个下行传输波束组中确定与所述随机接入前导序列对应的所述第一下行传输波束组，或
    所述网络设备根据用于发送所述随机接入前导序列的物理随机接入信道资源，从所述多个下行传输波束组中确定与所述物理随机接入信道资源对应的所述第一下行传输波束组，或
    所述网络设备根据所述随机接入前导序列和用于发送所述随机接入前导序列的物理随机接入信道资源，从所述多个下行传输波束组中确定与所述随机接入前导序列和所述物理随机接入信道资源这两者对应的所述第一下行传输波束组。
  10. 根据权利要求8或9所述的方法，其特征在于，在所述网络设备接收终端设备发送的第一信息之后，所述方法还包括：
    所述网络设备接收终端设备发送的第二信息；
    所述网络设备根据所述第二信息，从所述多个下行传输波束组中确定第一下行传输波束，所述第一下行传输波束为所述终端设备期望的用于所述网络设备传输后续信号的下行传输波束。
  11. 根据权利要求10所述的方法，其特征在于，所述第一下行传输波束为所述第一下行传输波束组中的波束，所述网络设备根据所述第二信息，从所述多个下行传输波束组中确定第一下行传输波束，包括：
    所述网络设备根据所述第二信息，从所述第一下行传输波束组中确定所述第一下行传输波束。
  12. 根据权利要求10或11所述的方法，其特征在于，在所述网络设备接收终端设备发送的第二信息之前，所述方法还包括：
    所述网络设备向所述终端设备发送第三信息，所述第三信息用于指示所述终端设备是否需要向所述网络设备发送所述第二信息；
    所述网络设备接收终端设备发送的第二信息，包括：
    所述网络设备接收所述终端设备根据所述第三信息发送的所述第二信息。
  13. 根据权利要求12所述的方法，其特征在于，所述第三信息承载于所述网络设备向所述终端设备发送的随机接入响应消息中，和/或所述第二信息承载于随机接入过程中用于发送所述终端设备标识的消息中。
  14. 根据权利要求10至13中任一项所述的方法，其特征在于，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号的标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
  15. 一种用于传输信号的终端设备，其特征在于，包括：
    第一接收单元，用于接收网络设备采用多个下行传输波束组发送的信号；
    第一发送单元，用于向所述网络设备发送第一信息，以便于所述网络设备从所述多个下行传输波束组中确定第一下行传输波束组，所述多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
  16. 根据权利要求15所述的终端设备，其特征在于，所述第一信息为随机接入前导序列，所述随机接入前导序列和/或用于发送所述随机接入前导序列的物理随机接入信道资源与所述第一下行传输波束组对应。
  17. 根据权利要求15或16所述的终端设备，其特征在于，所述终端设备还包括：
    第二发送单元，用于向所述网络设备发送第二信息，以便于所述网络设备从所述多个下行传输波束组中确定第一下行传输波束，所述第一下行传输波束为所述终端设备期望的用于所述网络设备传输后续信号的下行传输波束。
  18. 根据权利要求17所述的终端设备，其特征在于，所述第一下行传输波束为所述第一下行传输波束组中的波束。
  19. 根据权利要求17或18所述的终端设备，其特征在于，所述终端设备还包括：
    第二接收单元，用于接收所述网络设备发送的第三信息，所述第三信息用于指示所述终端设备是否需要向所述网络设备发送所述第二信息；
    确定单元，用于根据所述第三信息，决定是否向所述网络设备发送所述第二信息。
  20. 根据权利要求19所述的终端设备，其特征在于，所述第三信息承载于所述网络设备向所述终端设备发送的随机接入响应消息中，和/或所述第二信息承载于随机接入过程中用于发送所述终端设备标识的消息中。
  21. 根据权利要求17至20中任一项所述的终端设备，其特征在于，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
  22. 一种用于传输信号的网络设备，其特征在于，所述网络设备包括：
    第一发送单元，用于采用多个下行传输波束组向终端设备发送信号；
    第一接收单元，用于接收终端设备发送的第一信息；
    第一确定单元，用于根据所述第一信息，从所述多个下行传输波束组中确定第一下行传输波束组，所述多个下行传输波束组中的至少一个下行传输波束组包括多个下行传输波束。
  23. 根据权利要求22所述的网络设备，其特征在于，所述第一信息为随机接入前导序列，所述第一确定单元具体用于：
    根据所述随机接入前导序列，从所述多个下行传输波束组中确定与所述随机接入前导序列对应的所述第一下行传输波束组，或
    根据用于发送所述随机接入前导序列的物理随机接入信道资源，确定与所述物理随机接入信道资源对应的所述第一下行传输波束组，或
    根据所述随机接入前导序列和用于发送所述随机接入前导序列的物理随机接入信道资源，确定与所述随机接入前导序列和所述物理随机接入信道资源这两者对应的所述第一下行传输波束组。
  24. 根据权利要求22或23所述的网络设备，其特征在于，所述网络设备还包括：
    第二接收单元，用于接收终端设备发送的第二信息；
    第二确定单元，用于根据所述第二信息，从所述多个下行传输波束组中确定第一下行传输波束，所述第一下行传输波束为所述终端设备期望的用于所述网络设备传输后续信号的下行传输波束。
  25. 根据权利要求24所述的网络设备，其特征在于，所述第一下行传 输波束为所述第一下行传输波束组中的波束，所述第二确定单元具体用于：
    根据所述第二信息，从所述第一下行传输波束组中确定所述第一下行传输波束。
  26. 根据权利要求24或25所述的网络设备，其特征在于，所述网络设备还包括：
    第二发送单元，用于向所述终端设备发送第三信息，所述第三信息用于指示所述终端设备是否需要向所述网络设备发送所述第二信息；
    所述第二接收单元具体用于：
    接收所述终端设备根据所述第三信息发送的所述第二信息。
  27. 根据权利要求26所述的网络设备，其特征在于，所述第三信息承载于所述网络设备向所述终端设备发送的随机接入响应消息中，和/或所述第二信息承载于随机接入过程中用于发送所述终端设备标识的消息中。
  28. 根据权利要求24至27中任一项所述的网络设备，其特征在于，所述第二信息为所述终端设备接收的所述第一下行传输波束上承载的信号的标识，所述第一下行传输波束上承载的信号为以下信号中的至少一种信号：主同步信号、辅同步信号、广播信号、参考信号和承载系统消息的信号。
PCT/CN2017/073002 2017-02-06 2017-02-06 一种用于传输信号的方法、终端设备和网络设备 WO2018141115A1 (zh)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CN201780080535.6A CN110140302B (zh) 2017-02-06 2017-02-06 一种用于传输信号的方法、终端设备和网络设备
PCT/CN2017/073002 WO2018141115A1 (zh) 2017-02-06 2017-02-06 一种用于传输信号的方法、终端设备和网络设备
US16/483,418 US10728898B2 (en) 2017-02-06 2017-02-06 Method for use in transmitting signal, terminal device, and network device
EP17895268.5A EP3579446B1 (en) 2017-02-06 2017-02-06 Method for use in transmitting signal, terminal device, and network device
IL268447A IL268447A (en) 2017-02-06 2019-08-01 Method for use in signal transmission, terminal device, and network device
PH12019501790A PH12019501790A1 (en) 2017-02-06 2019-08-05 Method for use in transmitting signal, terminal device, and network device
US16/909,961 US20200322942A1 (en) 2017-02-06 2020-06-23 Method for use in transmitting signal, terminal device, and network device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2017/073002 WO2018141115A1 (zh) 2017-02-06 2017-02-06 一种用于传输信号的方法、终端设备和网络设备

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US16/483,418 A-371-Of-International US10728898B2 (en) 2017-02-06 2017-02-06 Method for use in transmitting signal, terminal device, and network device
US16/909,961 Continuation US20200322942A1 (en) 2017-02-06 2020-06-23 Method for use in transmitting signal, terminal device, and network device

Publications (1)

Publication Number Publication Date
WO2018141115A1 true WO2018141115A1 (zh) 2018-08-09

Family

ID=63039326

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/073002 WO2018141115A1 (zh) 2017-02-06 2017-02-06 一种用于传输信号的方法、终端设备和网络设备

Country Status (6)

Country Link
US (2) US10728898B2 (zh)
EP (1) EP3579446B1 (zh)
CN (1) CN110140302B (zh)
IL (1) IL268447A (zh)
PH (1) PH12019501790A1 (zh)
WO (1) WO2018141115A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113630169A (zh) * 2020-05-09 2021-11-09 广州海格通信集团股份有限公司 定向波束对准系统、方法、通信设备和存储介质

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109219152A (zh) * 2017-06-29 2019-01-15 索尼公司 无线通信系统中的电子设备以及无线通信方法
US10700760B1 (en) * 2019-07-31 2020-06-30 Qualcomm Incorporated Minimizing block error rate (BLER) associated with a beam switch
US11405128B2 (en) 2019-07-31 2022-08-02 Qualcomm Incorporated Minimizing block error rate (BLER) associated with a beam switch

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159466A (zh) * 2007-11-20 2008-04-09 华中科技大学 一种自适应随机波束成形传输方法
CN103004160A (zh) * 2010-06-01 2013-03-27 诺基亚公司 在通信系统中选择波束组和波束子集的装置、方法和计算机程序产品
CN104734758A (zh) * 2013-12-20 2015-06-24 中兴通讯股份有限公司 一种同步波束成形信号的发送、接收方法、基站和终端
US20150257073A1 (en) * 2014-03-10 2015-09-10 Samsung Electronics Co., Ltd. Apparatus and method for determining beam in wireless communication system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011150549A1 (en) * 2010-06-01 2011-12-08 Nokia Corporation Apparatus and method for selection of beam groups and subset of beams in communication system
KR101881847B1 (ko) * 2012-02-21 2018-08-24 삼성전자주식회사 통신 시스템에서 신호를 송수신하는 방법 및 장치
KR101995798B1 (ko) * 2012-07-03 2019-07-03 삼성전자주식회사 빔포밍을 사용하는 통신 시스템의 랜덤 억세스 장치 및 방법
US9814037B2 (en) 2013-06-28 2017-11-07 Intel Corporation Method for efficient channel estimation and beamforming in FDD system by exploiting uplink-downlink correspondence
CN111669826A (zh) * 2014-03-25 2020-09-15 瑞典爱立信有限公司 用于基于波束的物理随机接入的系统和方法
EP3048853B1 (en) * 2015-01-26 2021-05-26 ASUSTek Computer Inc. Method and apparatus for handling transmission in a wireless communication system
WO2017061158A1 (ja) * 2015-10-06 2017-04-13 ソニー株式会社 装置及び方法
US10700752B2 (en) * 2016-01-14 2020-06-30 Samsung Electronics Co., Ltd. System, method, and apparatus of beam-tracking and beam feedback operation in a beam-forming based system
CN109479307B (zh) * 2016-07-15 2022-03-08 Lg 电子株式会社 无线通信系统中用于发送和接收的方法及其装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101159466A (zh) * 2007-11-20 2008-04-09 华中科技大学 一种自适应随机波束成形传输方法
CN103004160A (zh) * 2010-06-01 2013-03-27 诺基亚公司 在通信系统中选择波束组和波束子集的装置、方法和计算机程序产品
CN104734758A (zh) * 2013-12-20 2015-06-24 中兴通讯股份有限公司 一种同步波束成形信号的发送、接收方法、基站和终端
US20150257073A1 (en) * 2014-03-10 2015-09-10 Samsung Electronics Co., Ltd. Apparatus and method for determining beam in wireless communication system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113630169A (zh) * 2020-05-09 2021-11-09 广州海格通信集团股份有限公司 定向波束对准系统、方法、通信设备和存储介质
CN113630169B (zh) * 2020-05-09 2023-10-10 广州海格通信集团股份有限公司 定向波束对准系统、方法、通信设备和存储介质

Also Published As

Publication number Publication date
EP3579446B1 (en) 2021-04-07
US20200322942A1 (en) 2020-10-08
EP3579446A4 (en) 2020-01-08
CN110140302B (zh) 2021-02-26
IL268447A (en) 2019-09-26
US20200015213A1 (en) 2020-01-09
CN110140302A (zh) 2019-08-16
EP3579446A1 (en) 2019-12-11
US10728898B2 (en) 2020-07-28
PH12019501790A1 (en) 2020-06-08

Similar Documents

Publication Publication Date Title
US20200322942A1 (en) Method for use in transmitting signal, terminal device, and network device
EP3648389A1 (en) Communication method, network device, and relay device
US11202322B2 (en) Random access method and terminal device
US11071135B2 (en) Uplink transmission method based on uplink reference signal, terminal, and network device
US20210153247A1 (en) Random access method and terminal device
WO2018133128A1 (zh) 用于随机接入的方法、终端设备和网络设备
JP2021502007A (ja) 無線通信方法及び装置
WO2019047182A1 (zh) 无线通信方法、网络设备和终端设备
WO2020061945A1 (zh) 用于随机接入的方法、网络设备和终端设备
WO2018058469A1 (zh) 信号发送的方法、终端设备和网络设备
US11425759B2 (en) Method for link reconfiguration and terminal device
US11212839B2 (en) Method for random access and terminal device
KR102317757B1 (ko) 랜덤 액세스를 위한 방법, 네트워크 기기 및 단말 기기
JP6992173B2 (ja) 送信方法、端末デバイス、およびネットワークデバイス

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17895268

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2017895268

Country of ref document: EP

Effective date: 20190903