WO2017133346A1 - 一种通信方法及装置 - Google Patents

一种通信方法及装置 Download PDF

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Publication number
WO2017133346A1
WO2017133346A1 PCT/CN2016/111940 CN2016111940W WO2017133346A1 WO 2017133346 A1 WO2017133346 A1 WO 2017133346A1 CN 2016111940 W CN2016111940 W CN 2016111940W WO 2017133346 A1 WO2017133346 A1 WO 2017133346A1
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WIPO (PCT)
Prior art keywords
time
adjacent
time slice
slices
sub
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PCT/CN2016/111940
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English (en)
French (fr)
Inventor
曾昆
黄煌
王光健
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Priority to EP16889152.1A priority Critical patent/EP3402271B1/en
Publication of WO2017133346A1 publication Critical patent/WO2017133346A1/zh
Priority to US16/052,519 priority patent/US10404518B2/en
Anticipated expiration legal-status Critical
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2602—Signal structure
    • H04L27/261—Details of reference signals
    • H04L27/2613—Structure of the reference signals
    • 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
    • H04B7/06952—Selecting one or more beams from a plurality of beams, e.g. beam training, management or sweeping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/26—Systems using multi-frequency codes
    • H04L27/2601—Multicarrier modulation systems
    • H04L27/2647—Arrangements specific to the receiver only
    • H04L27/2655—Synchronisation arrangements
    • H04L27/2662—Symbol synchronisation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • 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
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • 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
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a communication method and apparatus.
  • the spectrum below 6 GHz can be referred to as a low frequency (LF).
  • a spectrum of 6 GHz or more can be referred to as a high frequency (HF).
  • LF low frequency
  • HF high frequency
  • a large amount of spectrum resources are still not allocated. How to effectively use high frequency is one of the research hotspots in the current communication industry.
  • radio transmission in the high frequency band has the characteristics of large path loss, weak ability to penetrate obstacles, and rain attenuation and severe oxygen failure at some frequency points.
  • the high frequency band has a short wavelength at the same time, and it is easy to realize the characteristics of a large-scale array antenna. Therefore, the high path loss caused by the high frequency band can be compensated by the directional antenna gain brought by the beamforming technology.
  • Embodiments of the present invention provide a communication method and apparatus, which reduce beam switching overhead.
  • the technical solutions are as follows:
  • an embodiment of the present invention provides a communication method, including: determining a radio frame; the radio frame includes a time interval, where the time interval includes at least one first sub-time interval and at least one second sub-time The first sub-time interval corresponds to the first process; the second time interval corresponds to the second process; the first sub-time interval includes n first time slices, in the n first time slices The adjacent first time slice adopts different beams, the adjacent first time slice has a first guard interval; the second sub time interval includes m second time slices; each first time slice includes at least a symbol, each of the second time slices includes at least one symbol; at least one first time slice is adjacent to the at least one second time slice, and at least one of the adjacent first time slices and the two time slices are unprotected Protection interval; the m and n are positive integers; communication is performed by the radio frame.
  • the adjacent first time slice and the second time slice use the same beam.
  • the n first time slices are all adjacent.
  • the first sub-time interval includes a set of adjacent first time slices, each first time slice set includes n a first time slices, each of the The first time slice set uses n a transmit beams to transmit the downlink synchronization signal.
  • m is the number of transmission beams used for downlink data transmission.
  • the adjacent second time slice has a protection third protection interval.
  • the first sub-time interval includes b adjacent first time slice sets, and each first time slice set includes n b first time slices, Each first set of time slices uses n b receive beams to receive uplink access signals, and b and n b are positive integers.
  • the second process includes: an uplink data transmission process; and m is a number of receive beams used for uplink data transmission.
  • adjacent second time slices in the m second time slices receive uplink data by using different receive beams, and the adjacent second time slice has protection fourth protection interval.
  • the n first time slices are partially or completely non-adjacent.
  • the first process includes: a downlink synchronization and a beam training process; the first sub-time interval includes c non-adjacent first time slice sets, and each first time slice set includes n c phases a first time slice of the neighbor, each of the first time slice sets transmitting a downlink synchronization signal by using n c transmit beams, where c and n c are positive integers.
  • the second process is c, and each second process is: a downlink data transmission process; and m is a number of transmit beams used for downlink data transmission.
  • the second time slice adjacent to the m second time slices is sent by using different transmit beams.
  • the adjacent second time slice has a protection fifth protection interval.
  • the first process includes: an uplink random access and a beam training process; the nth first time slice includes d non-adjacent first time slice sets, and each first time slice set includes n d adjacent first time slices, each of the first time slice sets receiving n uplink access signals by using n d receive beams, and d and n d are positive integers.
  • the second process includes: an uplink data transmission process; and m is a number of receive beams used for uplink data transmission.
  • adjacent second time slices in the m second time slices receive uplink data by using different receive beams, and the adjacent second time slice has protection sixth protection interval.
  • an embodiment of the present invention provides a communications apparatus, including:
  • a processing unit configured to determine a radio frame, where the radio frame includes a time interval, where the time interval includes at least one first sub-time interval and at least one second sub-time interval, where the first sub-time interval corresponds to the first
  • the second time interval corresponds to the second process
  • the first sub-time interval includes n first time slices, and the adjacent first time slices in the n first time slices adopt different beams, The adjacent first time slice has a first guard interval
  • the second sub-time interval includes m second time slices; each first time slice includes at least one symbol, and each second time slice includes at least one a symbol; at least one first time slice is adjacent to at least one second time slice, and at least one of said adjacent first time slice and said two time slice has no guard interval; said m and n being positive integers; communication a unit for communicating over the radio frame.
  • the adjacent first time slice and the second time slice use the same beam.
  • the n first time slices are all adjacent.
  • the first process is: a downlink synchronization and a beam training process; the first sub-time interval includes a set of adjacent first time slices, and each of the first time slice sets includes n a first A time slice, wherein each of the first time slice sets uses n a transmit beams to transmit a downlink synchronization signal.
  • the second process includes: a downlink data transmission process, where m is a number of transmit beams used for downlink data transmission.
  • the adjacent second time slice has a protection third protection interval.
  • the first process is: an uplink random access and a beam training process; the first sub-time interval includes b adjacent first time slice sets, and each first time slice set includes n b a first time slice, each of the first time slice sets receiving n uplink access signals by using n b receive beams, where b and n b are positive integers.
  • the second process includes: an uplink data transmission process; and m is a number of receive beams used for uplink data transmission.
  • adjacent second time slices in the m second time slices receive uplink data by using different receive beams, and the adjacent second time slice has protection fourth protection interval.
  • the n first time slices are partially or completely non-adjacent.
  • the first process includes: a downlink synchronization and a beam training process; the first sub-time interval includes c non-adjacent first time slice sets, and each first time slice set includes n c phases a first time slice of the neighbor, each of the first time slice sets transmitting a downlink synchronization signal by using n c transmit beams, where c and n c are positive integers.
  • the second process is c, and each second process is: a downlink data transmission process; and m is a number of transmit beams used for downlink data transmission.
  • the second time slice adjacent to the m second time slices transmits downlink data by using different transmit beams, and the adjacent second time slice has protection fifth protection interval.
  • the first process includes: an uplink random access and a beam training process; the nth first time slice includes d non-adjacent first time slice sets, and each first time slice set includes n d adjacent first time slices, each of the first time slice sets receiving n uplink access signals by using n d receive beams, and d and n d are positive integers.
  • the second process includes: an uplink data transmission process; and m is a number of receive beams used for uplink data transmission.
  • adjacent second time slices in the m second time slices receive uplink data by using different receive beams, and the adjacent second time slice has protection sixth protection interval.
  • the beam switching protection interval between two processes is saved in the frame structure design. Thereby, beam switching overhead can be reduced, and resource utilization efficiency is improved.
  • FIG. 1 is a schematic structural diagram of a communication system to which an embodiment of the present invention is applied;
  • FIG. 2 is a schematic structural diagram of a frame according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of still another frame structure according to an embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of still another frame according to an embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of still another frame according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of still another frame structure according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of still another frame according to an embodiment of the present invention.
  • FIG. 8 is a schematic diagram of still another frame structure according to an embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of still another frame according to an embodiment of the present invention.
  • FIG. 10 is a schematic diagram of still another frame structure according to an embodiment of the present invention.
  • FIG. 11 is a schematic flowchart diagram of a communication method according to an embodiment of the present disclosure.
  • FIG. 12 is a schematic structural diagram of a communication apparatus according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of another communication apparatus according to an embodiment of the present invention.
  • a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an application running on a computing device and a computing device can be a component.
  • One or more components can reside within a process and/or execution thread, and the components can be located on one computer and/or distributed between two or more computers.
  • these components can execute from various computer readable media having various data structures stored thereon.
  • a component may, for example, be based on signals having one or more data packets (eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems) Communicate through local and/or remote processes.
  • data packets eg, data from two components interacting with another component between the local system, the distributed system, and/or the network, such as the Internet interacting with other systems
  • FIG. 1 shows a schematic architectural diagram of a communication system to which an embodiment of the present invention is applied.
  • the communication system 200 can include a network device 201 and terminal devices 202-204 connected by a wireless connection or a wired connection or other means.
  • Network devices can support multiple access technologies and provide multiple services to terminal devices through multiple access technologies.
  • 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 LTE time division duplex
  • UMTS Universal Mobile Telecommunication System
  • WiMAX Worldwide Interoperability for Microwave Access
  • the present invention describes various embodiments in connection with a terminal device.
  • the terminal device can communicate with one or more core networks via a radio access network (RAN), and the terminal device can refer to a user equipment (User Equipment, referred to as “UE”), an access terminal, a subscriber unit, and a user.
  • RAN radio access network
  • UE user equipment
  • 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 may be a cellular phone, a cordless phone, a Session Initiation Protocol ("SSIP") phone, a Wireless Local Loop (WLL) station, and a personal digital processing (Personal Digital) Assistant, referred to as "PDA” for short, handheld devices with wireless communication capabilities, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in future 5G networks, and the like.
  • SSIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Processing
  • the present invention describes various embodiments in connection with a network device.
  • the network device may be a device for communicating with the terminal device, for example, may be a base station (Base Transceiver Station, abbreviated as "BTS”) in the GSM system or CDMA, or may be a base station (NodeB in the WCDMA system, referred to as "NB") may also be an evolved base station (Evolutional Node B, "eNB” or "eNodeB”) in the LTE system, or the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and A network side device in a future 5G network or a network device in a future evolved PLMN network.
  • BTS Base Transceiver Station
  • NodeB base station
  • eNodeB evolved base station
  • eNodeB evolved base station
  • the network device may be a relay station, an access point, an in-vehicle device, a wearable device, and A network side
  • the beam used by the last symbol of the previous process is the same as the beam used by the first symbol of the latter process, so that the frame structure is The design saves the beam switching protection interval between the two processes. Thereby, beam switching overhead can be reduced, and resource utilization efficiency is improved.
  • the embodiment of the invention provides a special radio frame.
  • the radio frame includes a time interval including at least one first sub-time interval and at least one second sub-time interval, the first sub-time interval corresponding to the first process; the second The time interval corresponds to a second process; the first sub-time interval includes n first time slices, and adjacent first time slices in the m first time slices adopt different beams, the phase
  • the first time slice of the neighbor has a first guard interval;
  • the second sub-time interval includes m second time slices; each first time slice includes at least one symbol, and each second time slice includes at least one symbol;
  • a first time slice is adjacent to the at least one second time slice, and a second guard interval between at least one of the adjacent first time slices and the two time slices is 0; the m and n are positive integers.
  • the first process and the second process are respectively any one of the following processes: synchronization, random access, signaling control, data transmission, beam training, and the like.
  • the adjacent first time slice and the second time slice transmit signals by using the same beam.
  • Different sub-time intervals may be corresponding different processes, or may be used to transmit different channel signals.
  • the second time slice adjacent to the n second time slices adopts different beams, and the adjacent second time slice has a third guard interval.
  • the special radio frame can be in both centralized and distributed situations.
  • the centralized radio frame means that all of the m first time slices are adjacent, and all of the n second time slices are adjacent.
  • the distributed radio frame means that the first time slice is partially or completely non-adjacent, or the second time slice is partially or completely non-adjacent, or the first time slice is partially or completely non-adjacent, and the second time slice is partially or wholly. Not adjacent.
  • a process is divided into K sub-processes in the time domain.
  • FIG. 2 is a schematic structural diagram of a frame according to an embodiment of the present invention.
  • the frame structure is a schematic structural diagram of a centralized radio frame.
  • the frame includes a time interval including at least one first sub-time interval and at least one second sub-time interval.
  • Process 1 corresponds to the first sub-time interval
  • process 2 corresponds to the second sub-time interval.
  • the first sub-time interval includes n first time slices, such as the first time slice B 0 -B N-1 in FIG. 2 .
  • the second sub-time interval includes m first time slices, such as the second time slice S 0 -S M-1 in FIG.
  • a plurality of first time slices and second time slices are shown in the figure. In fact, there can be only one first time slice, or only one second time slice.
  • guard interval between the adjacent first time slice and the second time slice there is no guard interval between the adjacent first time slice and the second time slice, that is, the guard interval between the adjacent first time slice and the second time slice is 0.
  • the guard interval between the adjacent first time slice and the second time slice is 0.
  • the adjacent first time slice and the second time slice can transmit signals using the same beam.
  • first time slices different beam transmission signals may be used between adjacent first time slices, and a guard interval 1 is provided between adjacent first time slices.
  • the guard interval 1 between adjacent first time slices may be the same or different.
  • second time slices different beam transmission signals may be used between adjacent second time slices, and a guard interval 2 may exist between adjacent second time slices.
  • the guard interval 2 between adjacent second time slices may be the same or different.
  • FIG. 3 is a schematic diagram of another frame structure provided by an embodiment of the present invention.
  • the frame structure is also a centralized frame structure.
  • the frame structure shown in FIG. 3 can be considered as a special case of the frame structure shown in FIG. 2.
  • the frame length of a radio frame is 10 ms.
  • a radio frame consists of 10 radio subframes with a frame length of 1 millisecond.
  • a radio subframe is divided into eight slots of length 0.125 milliseconds, each slot consisting of Q symbols, which may be single carrier symbols or multi-carrier symbols, such as OFDM symbols.
  • the size of Q depends on the specific system operating frequency band. For 72GHz, 28GHz and 14GHz systems, the typical Q can be 80, 40 and 20 respectively.
  • the length of the radio frame, the length of the subframe, and the length of the symbol, and the number of subframes included in each radio frame, and the number of slots included in each subframe may also be other values.
  • the value is an example.
  • the time interval is a time interval in one time slot, and the time interval is divided into a number of time slices (Slides).
  • the time interval includes at least one first sub-time interval and at least one second sub-time interval.
  • Process 1 corresponds to the first sub-time interval
  • process 2 corresponds to the second sub-time interval.
  • the base station may transmit signals using different transmit beams on each adjacent time slice, or may use different receive beam receive signals, for example, transmit the synchronization signal through the transmit beam #0 on the time slice P 0 on the time slice S 1 .
  • the data signal is received by the receive beam #1.
  • the time slice may have a length of one symbol or a plurality of (>2) symbols.
  • FIG. 4 is a schematic diagram of another frame structure according to an embodiment of the present invention.
  • the frame shown in FIG. 4 may be applied to a Downlink Sync. & Beamtraining procedure and a Downlink Data Transmission.
  • the frame length of one radio frame is 10 ms.
  • a radio frame consists of 10 radio subframes with a frame length of 1 millisecond.
  • the length of the radio frame, the length of the sub-frame, or other values, the values listed here are an example. For other related content, refer to the related description corresponding to FIG. 1.
  • the wireless subframes may include: a general subframe and a special subframe. Special subframes are mainly used for downlink synchronization and beam training processes, and for downlink data transmission.
  • the time interval is one subframe, such as subframe #1, and the time interval is divided into a number of time slices (Slides).
  • the time interval includes at least one first sub-time interval and at least one second sub-time interval.
  • Process 1 is a downlink synchronization and beam training process
  • process 2 is a downlink data transmission process.
  • Adjacent first time slices and second time slices may use the same beam to transmit signals.
  • the first sub-time interval contains n time slices.
  • the size of n depends on the number of transmit beams required for downlink synchronization.
  • the base station transmits a system downlink synchronization signal using a transmit beam on each time slice.
  • the first sub-time interval includes a set of adjacent first time slices, such as DLBP 0 -DLBP a-1 in FIG. Each first time set may be referred to as a DLBP (downLink beam training period) subinterval.
  • the base station can traverse all of its transmit beams in one DLBP subinterval, and sequentially transmit system synchronization signals through different beams.
  • the size of a depends on the frequency band used by the HF communication system. For 72 GHz, 28 GHz, and 14 GHz systems, the typical a can be 12, 8, and 6, respectively.
  • Each first set of time slices may include n a first time slices, such as DLBP 0 including S 0 -S na-1 time slices.
  • the number of first time slices included in each first time slice set may be the same or different.
  • There is a guard interval between adjacent first time slices in each first time slice set such as guard interval 1 in the figure. Different guard intervals 1 may be the same or different.
  • the guard intervals 1 and 2 may be the same or different.
  • Each of the first time slice sets may use n a transmit beams to transmit a downlink synchronization signal.
  • the size of n a depends on the frequency band used by the HF communication system. For 72 GHz, 28 GHz, and 14 GHz systems, the typical n a can be 16, 12, and 8, respectively.
  • the transmit beams used in adjacent time slices in the same time slice set may be different.
  • the transmit beams used in different time slice sets may be the same or different.
  • the base station can transmit the synchronization signal using different transmission beams on each time slice.
  • the synchronization signal is transmitted through the transmission beam #0 on the time slice S0, and the synchronization signal is transmitted through the transmission beam #1 on the time slice S1.
  • a beam switching guard interval is reserved after each time slice for switching between different transmit beams.
  • the length of the first time slice may be 2 symbols, wherein one symbol transmits a primary synchronization signal and the other symbol transmits a secondary synchronization signal.
  • the length of the first time slice may also be greater than 2 symbols, wherein at least one symbol transmits a primary synchronization signal, and the other symbol transmits a secondary synchronization signal.
  • a DLBP sub-area may correspond to a receive beam period of a terminal device.
  • the terminal device receives the synchronization signal through a fixed receive beam within a DLBP subinterval.
  • the terminal device switches different receive beams to receive the synchronization signal.
  • the supporting terminal device switches at most a receiving beams.
  • Process 2 is divided into m second time slices, and the size of m depends on the number of transmit beams used in the downlink data transmission. If process 2 is only used for downlink data transmission by a single user, m has a value of 1. When m is greater than 1, different beam transmitting signals may be used between adjacent second time slices, and there may be a guard interval between adjacent second time slices, which is not shown in FIG. The guard intervals between adjacent second time slices may be the same or different.
  • FIG. 5 is a schematic diagram of another frame structure provided by an embodiment of the present invention.
  • the frame shown in FIG. 5 may be applied to an uplink access and beam training (Uplink Access & Beamtraining) process and an uplink data transmission (Uplink data transmission) process.
  • Uplink Access & Beamtraining Uplink Access & Beamtraining
  • Uplink data transmission Uplink data transmission
  • the frame shown in FIG. 5 is different from the frame shown in FIG. 4 in that the special subframe in FIG. 5 is mainly used for an uplink access and beam training process and an uplink data transmission (Uplink Data Transmission).
  • Process 1 is an uplink random access and beam training process
  • process 2 is an uplink data transmission process.
  • the first sub-time interval corresponds to process 1
  • the second sub-sub-time interval corresponds to process 2.
  • There is no guard interval between the adjacent first time slice and the adjacent second time slice for example, in FIG. 5, the last first time slice in ULBP b-1 and the first second time slice in the second process
  • the first sub-time interval includes b adjacent first time slice sets, such as ULBP 0 -ULBP b-1 in FIG.
  • Each first time set may be referred to as a ULBP (uplink beam training period) subinterval.
  • Each first set of time slices may include n b first time slices, such as ULBP 0 including B 0 -B nb-1 time slices.
  • a ULBP base station can traverse all of its receive beams in one ULBP subinterval, and sequentially receive uplink access signals sent by the terminal devices through different beams. The base station can receive the uplink access signal sent by the terminal device by using different receiving beams on each of the first time slices.
  • a ULBP sub-area may correspond to a transmit beam period of a terminal device. The terminal device transmits an uplink access signal through a fixed transmit beam in a ULBP subinterval.
  • the terminal device switches different transmit beams to transmit uplink access signals.
  • the user equipment is supported to switch up to b transmit beams.
  • the size of b is predetermined by the system design, and a typical b can take a value of 2.
  • Process 2 is divided into m second time slices, and the size of m depends on the number of receive beams used in the current uplink data transmission. If process 2 is only used for uplink data transmission by a single user, then the value of m is 1.
  • the frame shown in FIG. 5 is similar to the frame structure shown in FIG. 4. For details, refer to the corresponding description of FIG. 4, and the description is not repeated here.
  • FIG. 6 is a schematic diagram of still another frame structure shown in the embodiment of the present invention.
  • the frame structure is a schematic structural diagram of a distributed radio frame.
  • the time interval includes at least one first sub-time interval, and the first sub-time interval corresponds to process 1. Also included is at least a second sub-period interval, each of the second time intervals corresponding to process 2.
  • the first sub-time interval includes n time slices, and the first time interval includes k first time slice sets. K is greater than 2. At least two of the k first time slice sets are not adjacent.
  • Process 1 contains k sub-processes. Each sub-process corresponds to a first set of time slices.
  • Each first set of time slices includes N k adjacent first time slices.
  • the first first time slice set includes N 1 time slices.
  • guard interval 2 There is a guard interval 2 between adjacent first time slices. Different guard intervals 2 may be the same or different.
  • the number of first time slices protected by each first time slice set may be the same or different.
  • N k can be equal to 1.
  • Each of the first time slice sets uses N k beam transmission signals.
  • the adjacent first time slice can transmit signals using different beams.
  • the second sub-time interval includes k processes 2, each of which includes m second time slices. If m is greater than or equal to 2, adjacent second time slices in the m second time slices adopt different beam transmission signals, and the adjacent second time slice has a guard interval, and the protection interval may be the same, Can be different.
  • the k processes 2 in FIG. 6 may be the same process or different processes. Alternatively, k processes 2 can be viewed as k sub-processes 2 of process 2. For example, the process 2 1 and the process 2 2 in FIG. 6 may be the same, and may or may not be different.
  • the guard interval there is no guard interval between the at least one adjacent first time slice and the second time slice, or the guard interval is zero.
  • the last first time slice in the first sub-process 1 is adjacent to the first second time slice of the first process 2, and there is no guard interval between them.
  • the first first time slice in the second sub-process 1 is adjacent to the last second time slice in the first process 2, but with a guard interval of one. That is, there may be no guard interval between the adjacent first time slice and the second time slice only when it is adjacent to the last first time slice of each sub-process 1 and the second time slice of process 2.
  • FIG. 6 for example, the last first time slice in the first sub-process 1 is adjacent to the first second time slice of the first process 2, and there is no guard interval between them.
  • the first first time slice in the second sub-process 1 is adjacent to the last second time slice in the first process 2, but with a guard interval of one. That is, there may be no guard interval between the adjacent first time slice and the second time slice only when it is adjacent to the last first
  • Adjacent first time slices and second time slices may use the same beam to transmit signals.
  • FIG. 9 is a schematic diagram of still another frame structure shown in the embodiment of the present invention.
  • the frame structure is a schematic structural diagram of a distributed radio frame.
  • the frame structure can be applied to a Downlink Sync. & Beamtraining procedure and a Downlink Data Transmission.
  • radio frame In the radio frame shown in Fig. 9, it is assumed that the frame length of one radio frame is 10 ms.
  • a radio frame consists of 10 radio subframes with a frame length of 1 millisecond.
  • the wireless subframes may include: a general subframe and a special subframe. Special subframes are mainly used for downlink synchronization and beam training processes, and for downlink data transmission. For example, subframe #0, subframe #1 and subframe #2 in FIG. 9 can be used for downlink synchronization and beam training processes, and for downlink data transmission.
  • the time interval is a plurality of subframes, such as subframe #0, subframe #1, and subframe #2 in FIG.
  • the time interval can also be a sub-frame, and Figure 9 is just an example. This time interval is divided into a number of time slices (Slides).
  • the time interval includes at least one first sub-time interval and at least one second sub-time interval. Corresponds to two process steps 1 and 2, respectively.
  • Process 1 is a downlink synchronization and beam training process
  • process 2 is a downlink data transmission process.
  • the process 1 is a process corresponding to all DLBP downLink beam training periods in the subframe #0-2, and the downlink beam training interval.
  • Process 2 is a process corresponding to a data section in subframe #0-2.
  • data#0 in Figure 9.
  • FIG. 9 there is no guard interval between the first second time slice in the last first time slice and the data (data) interval in each DLBP. That is, the guard interval between the adjacent first time slice and the second time slice is zero. This can reduce system overhead and provide resource utilization.
  • the backward relationship between Process 1 and Process 2 is not limited by the embodiment of the present invention.
  • the sequence of the process shown in Figure 9 is only an example. Adjacent first time slices and second time slices may use the same beam to transmit signals.
  • the first sub-time interval contains n time slices.
  • the size of n depends on the number of transmit beams required for uplink synchronization.
  • the base station transmits a system downlink synchronization signal using a transmit beam on each time slice.
  • the first sub-time interval includes c first time slice sets, and at least two of the c first time slice sets are not adjacent. Each first time set may be referred to as a DLBP (downLink beam training period) subinterval.
  • DLBP downLink beam training period
  • DLBP#0-3 of the first four slots in subframe #0 in Figure 9 and DLBP in the first four slots (slots) of subframe#1 and subframe#2 (subframe#1 and The DLBP in subframe#2 is similar to the DLBP in subframe#0, not shown in the figure.), which contains a total of 12 DLBPs.
  • the number of 12 DLBPs here is just an example, and it can be other numbers.
  • the number of DLBPs in different subframes can also be different.
  • the DLBPs in FIG. 9 are not adjacent.
  • the distribution of the DLBPs in FIG. 9 is only an example, and may be other distribution manners.
  • the embodiment of the present invention is not limited, as long as at least two sets of the first time intervals are not adjacent. can.
  • Each first set of time slices may include N c first time slices, such as DLBP #0 including S 0 -S Nc-1 time slices.
  • the base station can traverse all of its transmit beams in one DLBP subinterval, and sequentially transmit system synchronization signals through different beams.
  • the size of N c is related to the beam coverage width and the intended coverage area of the system.
  • a typical Nc can take a value of 9.
  • the number of first time slices included in each first time slice set may be the same or different.
  • There is a guard interval between adjacent first time slices in each first time slice set such as guard interval 1 in the figure. Different guard intervals 1 may be the same or different.
  • Each of the first time slice sets may use N c transmit beams to transmit a downlink synchronization signal.
  • the transmit beams used in adjacent time slices in the same time slice set may be different.
  • the transmit beams used in different time slice sets may be the same or different.
  • the base station can transmit the synchronization signal using different transmission beams on each time slice.
  • the synchronization signal is transmitted by the transmission beam #0 on the time slice S0, and the synchronization signal is transmitted by the transmission beam #1 on the time slice S1.
  • a beam switching guard interval is reserved after each time slice for switching between different transmit beams.
  • the length of the first time slice may be 2 symbols, wherein one symbol transmits a primary synchronization signal and the other symbol transmits a secondary synchronization signal.
  • the length of the first time slice may also be greater than 2 symbols, wherein at least one symbol transmits a primary synchronization signal, and the other symbol transmits a secondary synchronization signal.
  • a DLBP sub-area may correspond to a receive beam period of a terminal device.
  • the terminal device receives the synchronization signal through a fixed receive beam within a DLBP subinterval. In different DLBP subintervals, the terminal device switches different receive beams to receive the synchronization signal.
  • the user equipment In a radio frame, the user equipment is supported to switch up to c reception beams.
  • the size of c is predetermined by the system design.
  • a typical c can be 12, as shown in FIG.
  • the second sub-time interval includes c processes 2, each of which includes m second time slices. If m is greater than or equal to 2, adjacent second time slices in the m second time slices adopt different beam transmission signals, and the adjacent second time slice has a guard interval, and the protection interval may be the same, Can be different.
  • c process 2 can be the same process, for example, data#0-4 in Fig. 9 is for data transmission of one terminal device. It can also be used for different processes, such as data#0-4 in Fig. 9 for data transmission of different terminal devices. Alternatively, c process 2 can be viewed as c sub-processes 2 of process 2. For example, the data #0-4 in the figure is regarded as a sub-process of process 2.
  • the guard interval 2 between adjacent second time slices may be the same or different.
  • the remaining frame resources not used for the DLBP can be regarded as a process 2 for downlink.
  • this part of resources can be divided into m time slices, the size of m depends on the number of transmit beams used in the downlink data transmission.
  • a typical m can take a value of 1, that is, all the remaining resources are allocated to one user for downlink data transmission.
  • FIG. 10 is a schematic diagram of still another frame structure shown in the embodiment of the present invention.
  • the frame structure is a schematic structural diagram of a distributed radio frame.
  • the frame structure can be applied to an uplink beam training & access procedure and an uplink data transmission procedure.
  • radio frame In the radio frame shown in FIG. 10, it is assumed that the frame length of one radio frame is 10 ms.
  • a radio frame consists of 10 radio subframes with a frame length of 1 millisecond.
  • the wireless subframes may include: a general subframe and a special subframe.
  • the special subframe is mainly used for the uplink beam training & access process and the uplink data transmission process.
  • subframe #6-9 in FIG. 10 can be used for downlink synchronization and beam training processes, and for downlink data transmission.
  • the time interval includes a plurality of subframes, such as subframe #6-9 in FIG.
  • the time interval can also be a sub-frame, and Figure 10 is just an example. This time interval is divided into a number of time slices (Slides).
  • the time interval includes at least one first sub-time interval and at least one second sub-time interval. Corresponds to two process steps 1 and 2, respectively.
  • the process 1 is an uplink beam training & access process, such as the process corresponding to the ULBP (uplink beam training period) in the subframe #6-9 in FIG.
  • Process 2 is an uplink data transmission process, such as, for example, a process corresponding to a data section in subframe #6-9 in FIG.
  • the chronological relationship between the process 1 and the process 2 is not limited in the embodiment of the present invention.
  • the sequence of the process shown in Figure 10 is only an example. Adjacent first time slices and second time slices may use the same beam to transmit signals.
  • the first sub-time interval contains n time slices.
  • the first sub-time interval includes d first time slice sets, and at least two of the first time time set sets are not adjacent.
  • Each first time set may be referred to as a ULBP (upLink beam training period) subinterval.
  • ULBP#0 of the last slot (slots) in subframe subframe #6 in Figure 10 and ULBP in the last slot (slots) of subframe#7-9 (ULBP in subframe#7-9 is similar, Not shown in the drawing.), a total of 4 ULBPs.
  • the ULBPs in Figure 10 are not adjacent, and the distribution of ULBP in Figure 10 is only an example. It is also possible to use other distribution modes, which are not limited in the embodiment of the present invention, as long as at least two sets of the first time interval are not adjacent.
  • Each first set of time slices may include N d first time slices, such as UL BP 0 including B 0 -B Nd-1 time slices.
  • the base station can traverse all of its receiving beams in one ULBP subinterval, and sequentially receive uplink access signals sent by users through different beams.
  • the size of N d is related to the beam coverage width and the intended coverage area of the system.
  • a typical N d can take a value of 9.
  • the number of first time slices included in each first time slice set may be the same or different.
  • There is a guard interval between adjacent first time slices in each first time slice set such as guard interval 2 in the figure. Different guard intervals 2 may be the same or different.
  • Each of the first time slice sets may use N d receive beams to receive an uplink access signal sent by the user.
  • the receive beams used in adjacent time slices in the same time slice set may be different.
  • the receive beams used in different time slice sets may be the same or different.
  • the base station may use the receive beam to receive the uplink access signal sent by the user on each time slice, for example, receive the access signal through the receive beam #0 on the time slice B 0 , and pass the receive beam # 1 on the time slice B 1 .
  • a beam switching guard interval is reserved after each time slice for switching between different receive beams.
  • the length of the first time slice may be 2 symbols, wherein one symbol transmits a primary synchronization signal and the other symbol transmits a secondary synchronization signal.
  • a ULBP sub-area may correspond to a transmit beam period of a terminal device.
  • the terminal device transmits the uplink access signal through a fixed transmit beam in a ULBP sub-interval, that is, the user equipment changes the transmit beam once in one time slot.
  • the terminal device switches different transmit beams to transmit uplink access signals.
  • the user equipment is supported to switch up to d transmit beams, and the d size is predetermined by the system design.
  • a typical d may take a value of 4.
  • the second sub-time interval includes d processes 2, each of which includes m second time slices. If m is greater than or equal to 2, adjacent second time slices in the m second time slices adopt different beam transmission signals, and the adjacent second time slice has a guard interval, and the protection interval may be the same, Can be different.
  • d process 2 can be the same process, for example, data#0-1 in Fig. 9 is for data transmission of one terminal device. It can also be used for different processes, such as data#0-1 in Fig. 9 for data transmission of different terminal devices. Alternatively, d process 2 can be viewed as a sub-process 2 of process 2.
  • the data interval #2 in the figure is regarded as the protection interval 2 between the two time slots adjacent to the two sub-processes of the process 2, which may be the same or different.
  • the remaining frame resources not used for the ULBP can be regarded as a process 2 for uplink data transmission, and the resources can be divided into m time slices.
  • the size of m depends on the number of transmit beams used for the uplink data transmission.
  • a typical m can take a value of 1, that is, all the remaining resources are allocated to one user for uplink data transmission.
  • FIG. 11 is a schematic flowchart diagram of a communication method according to an embodiment of the present invention. The method includes:
  • S1101 Determine a radio frame, where the radio frame includes a time interval, where the time interval includes at least one first sub-time interval and at least one second sub-time interval, where the first sub-time interval corresponds to a first process;
  • the second time interval corresponds to the second process;
  • the first sub-time interval includes n first time slices, and the adjacent first time slices in the n first time slices adopt different beams, the adjacent The first time slice has a first guard interval;
  • the second sub-time interval includes m second time slices; each first time slice includes at least one symbol, and each second time slice includes at least one symbol; at least one The first time slice is adjacent to the at least one second time slice, and the second guard time interval between the at least one adjacent first time slice and the two time slices is 0;
  • the m and n are positive integers.
  • the communication device can be a network device or a terminal device.
  • the network device and the terminal device reference may be made to the corresponding description of FIG. It is not repeated here.
  • the communication device determines a radio frame for communication.
  • the radio frame used for communication may specifically be the specific various frame structures mentioned above. This is not repeated, see the previous article.
  • S1102 Communicate by using the radio frame.
  • the transceiver communicates with the same beam in the adjacent first time slice and the second time slice.
  • the second guard interval between at least one of the adjacent first time slice and the second time slice in the frame used by the communication method in the embodiment of the present invention is 0, which can reduce system overhead and provide resource utilization. .
  • the embodiment of the present invention provides a communication device for performing the method embodiment of the present invention.
  • a communication device for performing the method embodiment of the present invention.
  • the communication device 1200 includes a processing unit 1201 and a communication unit 1202.
  • the communication device can be a network device or a terminal device.
  • the processing unit may be a processor, the communication unit may be a transceiver, and the receiving unit may be a receiver.
  • a processing unit configured to determine a radio frame, where the radio frame includes a time interval, where the time interval includes at least one first sub-time interval and at least one second sub-time interval, where the first sub-time interval corresponds to the first
  • the second time interval corresponds to the second process
  • the first sub-time interval includes n first time slices, and the adjacent first time slices in the n first time slices adopt different beams, The adjacent first time slice exists a first guard interval
  • the second sub-time interval includes m second time slices; each first time slice includes at least one symbol, each second time slice includes at least one symbol; at least one first time slice and at least one a second time slice is adjacent, a second guard interval between at least one of the adjacent first time slices and the two time slices is 0;
  • the m and n are positive integers;
  • a communication unit configured to communicate by using the wireless frame.
  • the processing unit determines a radio frame for communication.
  • the radio frame used for communication may specifically be the specific various frame structures mentioned above. This is not repeated, see the previous article.
  • the communication unit communicates using the same beam in the adjacent first time slice and the second time slice.
  • the second guard interval between at least one of the adjacent first time slice and the second time slice in the frame used by the communication method in the embodiment of the present invention is 0, which can reduce system overhead and provide resource utilization. .
  • the embodiment of the present invention provides a communication device 1300 for performing the method of the embodiment of the present invention.
  • the communication device 1300 includes a bus 1301, and a processor 1302, a memory 1303, a transmitter 1305, and a receiver 1304, which are respectively connected to the bus 1301.
  • the communication device can be a network device or a terminal device.
  • the transmitter 1305 and the receiver 1304 are configured to communicate with the communication device of the opposite end.
  • the memory 1303 is configured to store an instruction.
  • the processor 1302 is configured to execute the instructions stored by the memory 1303 to perform the following steps when executing the instructions:
  • the radio frame including a time interval, the time interval including at least one first sub-time interval and at least one second sub-time interval, the first sub-time interval corresponding to the first process;
  • the time interval corresponds to the second process;
  • the first sub-time interval includes n first time slices, and the adjacent first time slices in the n first time slices adopt different beams, and the adjacent a time slice has a first guard interval;
  • the second sub-time interval includes m second time slices; each first time slice includes at least one symbol, each second time slice includes at least one symbol; at least one first The time slice is adjacent to the at least one second time slice, and the second guard interval between the at least one adjacent first time slice and the two time slices is 0;
  • the m and n are positive integers;
  • the transmitter 1305 and receiver 1304 are instructed to communicate with other communication devices over the radio frame.
  • a radio frame for communication is determined.
  • the radio frame used for communication may specifically be the specific various frame structures mentioned above. This is not repeated, see the previous article.
  • the transceiver 1304 communicates with other communication devices through the radio frame, the adjacent first time slice and the second time slice communicate using the same beam.
  • the second guard interval between at least one of the adjacent first time slice and the second time slice in the frame used by the communication method in the embodiment of the present invention is 0, which can reduce system overhead and provide resource utilization. .
  • processor may be a processing unit or a collective name of multiple processing units.
  • the processor may be a central processing unit (CPU), or may be an application specific integrated circuit (ASIC), or may be configured to implement one or the embodiment of the present invention.
  • a plurality of integrated circuits such as one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs).
  • the memory may be a storage device or a collective name of a plurality of storage elements, and is used to store executable program code, parameters, data, etc. required for the operation of the resident access network device or the terminal.
  • the memory may include a random access memory (Random-Access Memory; RAM), and may also include a non-volatile memory (NVM), such as a disk memory, a flash memory, or the like.
  • RAM Random-Access Memory
  • NVM non-volatile memory
  • the bus may be an Industry Standard Architecture (ISA) bus, a Peripheral Component (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus.
  • ISA Industry Standard Architecture
  • PCI Peripheral Component
  • EISA Extended Industry Standard Architecture
  • the bus can be divided into an address bus, a data bus, a control bus, and the like. For ease of representation, only one line is shown in the figure, but it does not mean that there is only one bus or one type of bus.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

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Abstract

本发明公开了一种通信的方法和装置。该方法包括：确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间没有保护间隔；通过所述无线帧进行通信。在帧结构设计上节省两个过程之间的波束切换保护间隔，从而可以减少波束切换开销。

Description

一种通信方法及装置
本申请要求于2016年2月3日提交中国专利局、申请号为CN 201610077981.9、发明名称为“一种通信方法及装置”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
本发明涉及通信技术领域，尤其涉及一种通信方法及装置。
背景技术
随着对移动通信的数据传输速率、通信质量等要求的不断提升，现有的6GHz以下用于移动通信的频段已经变得非常拥挤。可以将6GHz以下的频谱称为低频(Low frequency，LF)。可以将6GHz以上的频谱称为高频(High frequency，HF)。然而，在6-300GHz的高频段上，仍然拥有大量的频谱资源还未被分配使用。如何有效的利用高频是当前通信业界的研究热点之一。
与6GHz以下的频段相比，无线电在高频段传播具有路损较大、穿透障碍物能力较弱，以及在某些频点雨衰、氧衰严重等特点。不过，高频段同时具有波长短，易实现大规模阵列天线的特点。因此，高频段带来的高路损可以通过波束成形(beamforming)技术带来的定向天线增益加以补偿。
但是在高频系统中，由于定向波束的波束宽度的限制，通过一个定向波束发送的信号只能覆盖某个特定方向上的小部分区域，而在该区域之外则无法成功接收相应的信息。因此，如要得到现有移动通信系统中的全向覆盖的效果，则需要遍历发送端或/和接收端所有的定向波束组合。但是每一次波束切换都会中断传输，在帧结构上来说，就是保留一段时频资源作为波束切换开销。
在高频系统中，不同的过程,例如同步、随机接入、信令控制、数据传输、波束训练等过程都需要遍历或者部分遍历波束组合，这些波束切换操作所需的保护间隔对系统带来大量开销。
发明内容
本发明实施例提供了一种通信方法和装置，减少波束切换开销。技术方案如下：
第一方面，本发明实施例提供了一种通信方法，包括：确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间没有保护保护间隔；所述m和n为正整数；通过所述无线帧进行通信。
可选的，所述相邻的第一时间片和所述第二时间片采用相同的波束。
一种可能的实施方式，所述n个第一时间片全部相邻。
可选的，下行同步和波束训练过程；所述第一子时间区间包括a个相邻的第一时间片集合，每个第一时间片集合包含na个第一时间片，所述每个第一时间片集合采用na个发送波束来发送下行同步信号。下行数据传输过程，m为下行数据传输使用的发送波束的个数。
可选的，如果在所述m个第二时间片中相邻的第二时间片采用不同的发送波束发送下行数据，所述相邻的第二时间片存在保护第三保护间隔。
可选的，上行随机接入和波束训练过程；所述第一子时间区间包括b个相邻的第一时间片集合，每个第一时间片集合包含nb个第一时间片，所述每个第一时间片集合采用nb个接收波束来接收上行接入信号，所述b和nb为正整数。
可选的，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的接收波束接收上行数据，所述相邻的第二时间片存在保护第四保护间隔。
一种可能的实施方式中，所述n个第一时间片部分或全部不相邻。
可选的，所述第一过程包括：下行同步和波束训练过程；所述第一子时间区间包括c个不相邻的第一时间片集合，每个第一时间片集合包含nc个相邻的第一时间片，所述每个第一时间片集合采用nc个发送波束来发送下行同步信号，所述c和nc为正整数。
可选的，第二过程为c个，每一个第二过程为：一个下行数据传输过程；m为一个下行数据传输使用的发送波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的发送波束发送下行 数据，所述相邻的第二时间片存在保护第五保护间隔。
可选的，所述第一过程包括：上行随机接入和波束训练过程；所述第n个第一时间片包括d个不相邻的第一时间片集合，每个第一时间片集合包含nd个相邻的第一时间片，所述每个第一时间片集合采用nd个接收波束来接收上行接入信号，所述d和nd为正整数。
可选的，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的接收波束接收上行数据，所述相邻的第二时间片存在保护第六保护间隔。
第二方面，本发明实施例提供了一种通信装置，包括：
处理单元，用于确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间没有保护间隔；所述m和n为正整数；通信单元，用于通过所述无线帧进行通信。
可选的，所述相邻的第一时间片和所述第二时间片采用相同的波束。
可选的，所述n个第一时间片全部相邻。
可选的，所述第一过程为：下行同步和波束训练过程；所述第一子时间区间包括a个相邻的第一时间片集合，每个第一时间片集合包含na个第一时间片，所述每个第一时间片集合采用na个发送波束来发送下行同步信号。
可选的，所述第二过程包括：下行数据传输过程，m为下行数据传输使用的发送波束的个数。
可选的，如果在所述m个第二时间片中相邻的第二时间片采用不同的发送波束发送下行数据，所述相邻的第二时间片存在保护第三保护间隔。
可选的，所述第一过程为：上行随机接入和波束训练过程；所述第一子时间区间包括b个相邻的第一时间片集合，每个第一时间片集合包含nb个第一时间片，所述每个第一时间片集合采用nb个接收波束来接收上行接入信号，所述b和nb为正整数。
可选的，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的接收波束接收上行数据，所述相邻的第二时间片存在保护第四保护间隔。
可选的，所述n个第一时间片部分或全部不相邻。
可选的，所述第一过程包括：下行同步和波束训练过程；所述第一子时间区间包括c个不相邻的第一时间片集合，每个第一时间片集合包含nc个相邻的第一时间片，所述每个第一时间片集合采用nc个发送波束来发送下行同步信号，所述c和nc为正整数。
可选的，第二过程为c个，每一个第二过程为：一个下行数据传输过程；m为一个下行数据传输使用的发送波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的发送波束发送下行数据，所述相邻的第二时间片存在保护第五保护间隔。
可选的，所述第一过程包括：上行随机接入和波束训练过程；所述第n个第一时间片包括d个不相邻的第一时间片集合，每个第一时间片集合包含nd个相邻的第一时间片，所述每个第一时间片集合采用nd个接收波束来接收上行接入信号，所述d和nd为正整数。
可选的，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
可选的，在所述m个第二时间片中相邻的第二时间片采用不同的接收波束接收上行数据，所述相邻的第二时间片存在保护第六保护间隔。
本发明实施例，在帧结构设计上节省两个过程之间的波束切换保护间隔。从而可以减少波束切换开销，提高资源利用效率。
附图说明
附图包含在并且构成本说明书的一部分，其中相同的数字描绘相同的元件，附图说明本发明的实施例，并且与描述内容一起用于解释本发明的原理。
图1为应用本发明实施例的一种通信系统的示意性架构图；
图2为本发明实施例所示的一种帧结构示意图；
图3为本发明实施例所示的又一种帧结构示意图；
图4为本发明实施例所示的又一种帧结构示意图；
图5为本发明实施例所示的又一种帧结构示意图；
图6为本发明实施例所示的又一种帧结构示意图；
图7为本发明实施例所示的又一种帧结构示意图；
图8为本发明实施例所示的又一种帧结构示意图；
图9为本发明实施例所示的又一种帧结构示意图；
图10为本发明实施例所示的又一种帧结构示意图；
图11为本发明实施例提供的一种通信方法的流程示意图；
图12为本发明实施例提供的一种通信装置的结构示意图；
图13为本发明实施例提供的另一种通信装置的结构示意图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本发明的一部分实施例，而不是全部实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都应属于本发明保护的范围。
在本说明书中使用的术语“部件”、“模块”、“系统”等用于表示计算机相关的实体、硬件、固件、硬件和软件的组合、软件、或执行中的软件。例如，部件可以是但不限于，在处理器上运行的进程、处理器、对象、可执行文件、执行线程、程序和/或计算机。通过图示，在计算设备上运行的应用和计算设备都可以是部件。一个或多个部件可驻留在进程和/或执行线程中，部件可位于一个计算机上和/或分布在2个或更多个计算机之间。此外，这些部件可从在上面存储有各种数据结构的各种计算机可读介质执行。部件可例如根据具有一个或多个数据分组(例如来自与本地系统、分布式系统和/或网络间的另一部件交互的二个部件的数据，例如通过信号与其它系统交互的互联网)的信号通过本地和/或远程进程来通信。
图1示出了应用本发明实施例的一种通信系统的示意性架构图。如图2所示，该通信系统200可以包括网络设备201和终端设备202～204通过无线连接或有线连接或其它方式连接。网络设备可以支持多种接入技术，通过多种接入技术为终端设备提供多种服务。
应理解，本发明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”)通用分组无线业务(General Packet Radio Service，简称为“GPRS”)系统、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，以及未来的5G通信系统等。
本发明结合终端设备描述了各个实施例。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，终端设备可以指用户设备(User Equipment，简称为“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，简称为“SIP”)电话、无线本地环路(Wireless Local Loop，简称为“WLL”)站、个人数字处理(Personal Digital Assistant，简称为“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网络中的终端设备等。
本发明结合网络设备描述了各个实施例。网络设备可以是用于与终端设备进行通信的设备，例如，可以是GSM系统或CDMA中的基站(Base Transceiver Station，简称为“BTS”)，也可以是WCDMA系统中的基站(NodeB，简称为“NB”)，还可以是LTE系统中的演进型基站(Evolutional Node B，简称为“eNB”或“eNodeB”)，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网络中的网络侧设备或未来演进的PLMN网络中的网络设备等。
在高频系统中，为了克服定向波束的波束宽度限制造成的覆盖问题，不少过程，例如同步、随机接入、信令控制、数据传输、波束训练等过程，都需要遍历或者部分遍历波束组。其中的波束切换操作所需的保护间隔对系统带来大量开销。并且，在进行波束遍历或者部分遍历时，相邻的两个过程各自波束切换的执行顺序是独立设计的。这种设计假设导致两个过程之间必须设置波束切换保护间隔。而这部分的开销，在系统各过程交替进行时不断累积，尤其当过程采用分布式设计时，更是不可小觑。因此，为了减小 波束切换开销。通过对相邻两个过程各自内部进行波束切换时波束切换的执行顺序进行联合设计，让前一个过程的最后一个符号使用的波束和后一个过程第一个符号使用的波束相同，从而在帧结构设计上节省两个过程之间的波束切换保护间隔。从而可以减少波束切换开销，提高资源利用效率。
本发明实施例提供一种特殊的无线帧(frame)。其中，该无线帧包括一个时间区间(period)，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片(slide)，在所述m个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0；所述m和n为正整数。
其中，第一过程和第二过程分别为如下过程中的任一过程：同步、随机接入、信令控制、数据传输、波束训练等过程。
在本发明实施例中，所述相邻的第一时间片和第二时间片采用相同的波束发送信号。
不同的子时间区间可以是对应的不同的过程，也可以是指用于传输不同的信道信号。
可选的，该特殊的无线帧中，在所述n个第二时间片中相邻的第二时间片采用不同的波束，所述相邻的第二时间片存在第三保护间隔。
其中，在保护间隔内都是不发送信号的。
本发明实施例中，该特殊无线帧分可以为集中式和分布式两种情况。
其中，集中式无线帧是指所述的m个第一时间片全部相邻，和所述n个第二时间片全部相邻。分布式的无线帧是指第一时间片部分或全部不相邻，或者第二时间片部分或全部不相邻，或者第一时间片部分或全部不相邻、且第二时间片部分或全部不相邻。分布式的帧中，一个过程在时域上被分为K个子过程执行。
如图2所示，为本发明实施例所示的一种帧结构示意图。该帧结构为一种集中式无线帧的结构示意图。该帧包含时间区间，该时间区间包括至少一个第一子时间区间和至少一个第二子时间区间。过程1对应第一子时间区间，过程2对应第二子时间区间。其中,第一子时间区间包括n个第一时间片，如图2中的第一时间片B0-BN-1。第二子时间 区间包括m个第一时间片，如图2中的第二时间片S0-SM-1。图中分别显示了多个第一时间片和第二时间片。其实，也可以只有一个第一时间片，或只有一个第二时间片。其中，相邻的第一时间片和第二时间片间没有保护间隔，也就是相邻的第一时间片和第二时间片间的保护间隔为0。比如，图2中，时间片BN-1与时间片S0间没有保护间隔。这样就可以减低系统开销，提供资源利用率。
相邻的第一时间片和第二时间片可以使用相同的波束传输信号。
如果有多个第一时间片，相邻的第一时间片间可以采用不同的波束传输信号，相邻的第一时间片间有保护间隔1。相邻的第一时间片间的保护间隔1可以相同，也可以不同。如果有多个第二时间片，相邻的第二时间片间也可以采用不同的波束传输信号，相邻的第二时间片间可以有保护间隔2。相邻的第二时间片间的保护间隔2可以相同，也可以不同。
如图3所示为本发明实施例提供的另一种帧结构示意图。该帧结构也为集中式的帧结构。其中，图3所示的帧结构可以认为是图2所示的帧结构的一个特例。图3中，一个无线帧(frame)的帧长为10ms。一个无线帧由10个帧长为1毫秒的无线子帧(subframe)构成。一个无线子帧被划分为8个长度为0.125毫秒的时隙(slot)，每个时隙由Q个符号构成，该符号可以是单载波符号，也可以是多载波符号，比如OFDM符号。Q的大小取决具体系统工作频段，对于72GHz、28GHz和14GHz系统，典型的Q可以分别取80、40和20。其中，无线帧的长度，子帧的长度，以及符号的长度，以及每个无线帧中包含的子帧的数量，以及每个子帧中包含的时隙个数，也可以是其它数值，这里列出的数值，是一个例子。其它相关内容可以参见图1对应的相关描述。
本发明实施例中的图3，时间区间为1个时隙中一段时间区间，该时间区间被分为若干时间片(Slides)。该时间区间包括至少一个第一子时间区间和至少一个第二子时间区间。在该时间区间上存在连续的两个过程(Procedure)1和2。过程1对应第一子时间区间，过程2对应第二子时间区间。在各相邻的时间片上基站可以使用不同的发送波束发送信号，也可以使用不同的接收波束接收信号，例如，在时间片P0上通过发送波束#0发送同步信号，在时间片S1上通过接收波束#1接收数据信号。上述时间片的长度可以为1个符号，也可以为多个(>2)符号。
如图4所示为本发明实施例提供的另一种帧结构示意图。图4所示的帧可以是可以应用于下行同步和波束扫描过程(Downlink Sync.& Beamtraining procedure)和下行数据传输过程(Downlink data Transmission)。
图4所示的无线帧中，假定一个无线帧(frame)的帧长为10ms。一个无线帧由10个帧长为1毫秒的无线子帧(subframe)构成。其中，无线帧的长度，子帧的长度，也可以是其它数值，这里列出的数值，是一个例子。其它相关内容可以参见图1对应的相关描述。
无线子帧可以包括：一般子帧和特殊子帧。特殊子帧主要用于下行同步以及波束训练过程，和下行数据传输的过程。比如图4中的子帧#1。其中，时间区间为一个子帧，比如子帧#1，该时间区间被分为若干时间片(Slides)。该时间区间包括至少一个第一子时间区间和至少一个第二子时间区间。分别对应两个过程1和2。过程1为下行同步以及波束训练过程，过程2为下行数据传输过程。过程1和过程2中相邻的第一时间片和第二时间间没有保护间隔。也就是相邻的第一时间片和第二时间片间的保护间隔为0。比如，图4中，DLBPa-1中最后的一个时间片与过程2中的第一时间片间没有保护间隔。这样就可以减低系统开销，提供资源利用率。过程1和过程2的向后关系，本发明实施例并不限定。图4所示的过程的先后顺序仅为一个示例。
相邻的第一时间片和第二时间片可以使用相同的波束发射信号。
第一子时间区间包含n个时间片。n的大小取决下行同步需要的发送波束个数。基站在每个时间片上使用一种发送波束发送系统下行同步信号。所述第一子时间区间包括a个相邻的第一时间片集合，比如图4中的DLBP0-DLBPa-1。每个第一时间集合可以称为一个DLBP(downLink beam training period，下行波束训练区间)子区间。基站在一个DLBP子区间内可以遍历一遍其所有的发送波束，依次通过不同的波束发送系统同步信号。每个第一时间集合之间间可以有保护间隔。比如图中的保护间隔2。不同的保护间隔1可以相同，也可以不相同。a的大小取决于高频通信系统所采用的频段，对于72GHz、28GHz以及14GHz系统，典型的a可以分别取值为12、8和6。
每个第一时间片集合可以包含na个第一时间片，比如DLBP0包括S0-Sna-1个时间片。每个第一时间片集合包含的第一时间片的个数可以相同，也可以不同。其中每个第一时间片集合中相邻的第一时间片间有保护间隔，比如图中的保护间隔1。不同的保护间隔1可以相同，也可以不相同。保护间隔1和2可以相同，也可以不相同。所述每个第一时间片集合可以采用na个发送波束来发送下行同步信号。na的大小取决于高频通信系统所采用的频段，对于72GHz、28GHz以及14GHz系统，典型的na可以分别取值为16、12和8。同一个时间片集合中相邻时间片所采用的发送波束可以不同。不同时间片集合所采用的发送波束可以相同，也可以不同。比如，在各个时间片上基站可以使用不同的 发送波束发送同步信号，例如，在时间片S0上通过发送波束#0发送同步信号，在时间片S1上通过发送波束#1发送同步信号。每个时间片后预留一个波束切换保护间隔用于不同发送波束之间的切换。上述第一时间片的长度可以为2个符号，其中一个符号发送主同步信号，另一个符号发送辅同步信号。上述第一时间片的长度也可以为大于2符号，其中至少包括一个符号发送主同步信号，另一个符号发送辅同步信号。
一个DLBP子区可以对应一个终端设备的接收波束周期。终端设备在一个DLBP子区间内通过一个固定的接收波束接收同步信号。在不同的DLBP子区间，终端设备切换不同的接收波束来接收同步信号。在一个特殊子帧内，支持终端设备最多切换a个接收波束。
过程2被分为m个第二时间片，m的大小取决当次下行数据传输使用的发送波束个数。若过程2仅用于单个用户的下行数据传输，则m的取值为1。当m大于1时，相邻的第二时间片间也可以采用不同的波束发射信号，相邻的第二时间片间可以有保护间隔，图4中没有显示。相邻的第二时间片间的保护间隔可以相同，也可以不同。
如图5所示为本发明实施例提供的另一种帧结构示意图。图5所示的帧可以是可以应用于上行随机接入和波束训练(Uplink Access&Beamtraining)过程和上行数据传输(Uplink data Transmission)过程。
图5所示的帧与图4所示的帧得不同在于：图5中的特殊子帧主要用于上行随机接入和波束训练(Uplink Access & Beamtraining)过程和上行数据传输(Uplink data Transmission)过程。过程1为上行随机接入和波束训练过程，过程2为上行数据传输(Uplink data Transmission)过程。第一子时间区间对应过程1，第二子子时间区间对应过程2。相邻的第一时间片和相邻的第二时间片间没有保护间隔，比如，图5中，ULBPb-1中最后一个第一时间片和第二过程的第一个第二时间片间没有保护间隔。所述第一子时间区间包括b个相邻的第一时间片集合，比如图5中的ULBP0-ULBPb-1。每个第一时间集合可以称为一个ULBP(uplink beam training period，上行波束训练区间)子区间。每个第一时间片集合可以包含nb个第一时间片，比如ULBP0包括B0-Bnb-1个时间片。一个ULBP基站在一个ULBP子区间内可以遍历一遍其所有的接收波束，依次通过不同的波束接收终端设备发送的上行接入信号。在各个第一时间片上基站可以使用不同的接收波束接收终端设备发送的上行接入信号。一个ULBP子区可以对应一个终端设备的发射波束周期。终端设备在一个ULBP子区间内通过一个固定的发送波束发送上行接入信号。在不同的ULBP子区间，终端设备切换不同的发送波束来发送上行接入信号。在一个特 殊子帧内，支持用户设备最多切换b个发送波束。b的大小由系统设计时预先确定，典型的b可以取值为2。
过程2被分为m个第二时间片，m的大小取决当次上行数据传输使用的接收波束个数。如果过程2仅用于单个用户的上行数据传输，则m的取值为1。图5所示的帧和图4所示的帧结构类似，具体内容可以参见图4对应的描述这里就不再重复描述。
如图6所示，为本发明实施例所示的又一种帧结构示意图。该帧结构为一种分布式无线帧的结构示意图。该时间区间包括至少一个第一子时间区间，第一子时间区间对应过程1。还包括至少第二子时间区间，每一个第二时间区间对应过程2。第一子时间区间包括n个时间片，该第一时间区间包括k个第一时间片集合。K大于2。k个第一时间片集合中至少有两个第一时间片集合不相邻。过程1包含k个子过程。每个子过程对应一个第一时间片集合。每个第一时间片集合包含Nk个相邻的第一时间片。比如第一个第一时间片集合包括N1个时间片。相邻的第一时间片之间有保护间隔2。不同的保护间隔2可以相同，也可以不同。每个第一时间片集合所保护的第一时间片的数量可以相同，也可以不同。Nk可以等于1。所述每个第一时间片集合采用Nk个波束传输信号。相邻的第一时间片可以采用不同的波束传输信号。
第二子时间区间包括k个过程2，每一个第二过程包括m个第二时间片。如果m大于等于2，在所述m个第二时间片中相邻的第二时间片采用不同的波束传输信号，所述相邻的第二时间片存在保护间隔，该保护间隔可以相同，也可以不同。图6中的k个过程2可以为相同的过程，也可以为不同的过程。或者，k个过程2可以看成一个过程2的k个子过程2。比如，图6中过程21与过程22可以相同，可以也可以不同。
至少一个相邻的第一时间片和第二时间片之间没有保护间隔，或者说保护间隔为0。如图6中，比如，第一个子过程1中的最后一个第一时间片和第一个过程2的第一个第二时间片相邻，且相互之间没有保护间隔。但是第二个子过程1中的第一个第一时间片和第一个过程2的最后一个第二时间片相邻，但是之间有保护间隔1。也就是说，可以是只有与每个子过程1的最后一个第一时间片和过程2的第二时间片相邻时，相邻的第一时间片和第二时间片间没有保护间隔。或者，如图7所示，可以是只有与每个子过程1的第一个第一时间片和过程2的第二时间片相邻时，相邻的第一时间片和第二时间片间没有保护间隔。或者，如图8所示，所有相邻的第一时间片和第二时间片之间都没有保护间隔。图6-8所示的帧结构，除了相邻第一时间片和第二时间是否有保护间隔不同 外，其他都相同。这里就不再详述。其中，相邻的第一时间片和第二时间片间没有保护间隔，也就是相邻的第一时间片和第二时间片间的保护间隔为0。这样就可以减低系统开销，提供资源利用率。
相邻的第一时间片和第二时间片可以使用相同的波束发射信号。
如图9所示，为本发明实施例所示的又一种帧结构示意图。该帧结构为一种分布式无线帧的结构示意图。该帧结构可以适用于下行同步和波束扫描过程(Downlink Sync.& Beamtraining procedure)和下行数据传输过程(Downlink data Transmission)。
图9所示的无线帧中，假定一个无线帧(frame)的帧长为10ms。一个无线帧由10个帧长为1毫秒的无线子帧(subframe)构成。
无线子帧可以包括：一般子帧和特殊子帧。特殊子帧主要用于下行同步以及波束训练过程，和下行数据传输的过程。比如图9中的子帧#0，子帧#1和子帧#2，可以用于下行同步以及波束训练过程，和下行数据传输的过程。其中，时间区间为多个子帧，比如图9中的子帧#0，子帧#1和子帧#2。时间区间也可以是一个子帧，图9只是一个示例。该时间区间被分为若干时间片(Slides)。该时间区间包括至少一个第一子时间区间和至少一个第二子时间区间。分别对应两个过程过程1和2。过程1为下行同步以及波束训练过程，过程2为下行数据传输过程。比如，图9中，过程1为subframe#0-2中所有DLBP downLink beam training period，下行波束训练区间)对应的过程。过程2为subframe#0-2中一个数据(data)区间对应的过程。比如图9中的data#0。过程1和过程2中相邻的第一时间片和第二时间间没有保护间隔。比如，图9中，每个一个DLBP中最后一个第一时间片和数据(data)区间中第一第二时间片间没有保护间隔。也就是相邻的第一时间片和第二时间片间的保护间隔为0。这样就可以减低系统开销，提供资源利用率。过程1和过程2的向后关系，本发明实施例并不限定。图9所示的过程的先后顺序仅为一个示例。相邻的第一时间片和第二时间片可以使用相同的波束发射信号。
第一子时间区间包含n个时间片。n的大小取决上行同步需要的发送波束个数。基站在每个时间片上使用一种发送波束发送系统下行同步信号。所述第一子时间区间包括c个第一时间片集合，所述c个第一时间片集合中至少有两个第一时间区间集合不相邻。每个第一时间集合可以称为一个DLBP(downLink beam training period，下行波束训练区间)子区间。比如图9中子帧subframe#0中前四个时隙(slots)的DLBP#0-3,以及subframe#1和subframe#2中前四个时隙(slots)中的DLBP(subframe#1和subframe#2中的DLBP和subframe#0中的DLBP类似，附图中没有标注出。)，总共包含12个DLBP。 这里12个DLBP的数量只是个举例，也可以是其它数量。不同子帧内的DLBP数量也可以不同。图9中的DLBP都不相邻，图9中DLBP的分布只是一个示例，还可以是其它分布方式，本发明实施例不做限定，只要至少至少有两个第一时间区间集合不相邻就可以。
每个第一时间片集合可以包含Nc个第一时间片，比如DLBP#0包括S0-SNc-1个时间片。基站在一个DLBP子区间内可以遍历一遍其所有的发送波束，依次通过不同的波束发送系统同步信号。Nc的大小与波束覆盖宽度和系统拟覆盖区域有关，典型的Nc可以取值为9。每个第一时间片集合包含的第一时间片的个数可以相同，也可以不同。其中每个第一时间片集合中相邻的第一时间片间有保护间隔，比如图中的保护间隔1。不同的保护间隔1可以相同，也可以不相同。所述每个第一时间片集合可以采用Nc个发送波束来发送下行同步信号。同一个时间片集合中相邻时间片所采用的发送波束可以不同。不同时间片集合所采用的发送波束可以相同，也可以不同。比如，在各个时间片上基站可以使用不同的发送波束发送同步信号，例如，在时间片S0上通过发送波束#0发送同步信号，在时间片S1上通过发送波束#1发送同步信号。每个时间片后预留一个波束切换保护间隔用于不同发送波束之间的切换。上述第一时间片的长度可以为2个符号，其中一个符号发送主同步信号，另一个符号发送辅同步信号。上述第一时间片的长度也可以为大于2符号，其中至少包括一个符号发送主同步信号，另一个符号发送辅同步信号。
一个DLBP子区可以对应一个终端设备的接收波束周期。终端设备在一个DLBP子区间内通过一个固定的接收波束接收同步信号。在不同的DLBP子区间，终端设备切换不同的接收波束来接收同步信号。在一个无线帧内，支持用户设备最多切换c个接收波束，c的大小由系统设计时预先确定，典型的c可以取值为12，比如图9所示为12。
第二子时间区间包括c个过程2，每一个第二过程包括m个第二时间片。如果m大于等于2，在所述m个第二时间片中相邻的第二时间片采用不同的波束传输信号，所述相邻的第二时间片存在保护间隔，该保护间隔可以相同，也可以不同。c个过程2可以为相同的过程，比如图9中的data#0-4都是用于一个终端设备的数据传输。也可以为不同的过程，比如图9中的data#0-4用于不同终端设备的数据传输。或者，c个过程2可以看成一个过程2的c个子过程2。比如把图中的data#0-4看作一个过程2的5个子过程。相邻的第二时间片间的保护间隔2可以相同，也可以不同。如图9所示，在一个DLBP子区间所在时隙内，剩余未用于DLBP的帧资源，可视为一个过程2，用于下行 数据传输，这部分资源可以被分为m个时间片，m的大小取决当次下行数据传输使用的发送波束个数。典型的m可以取值为1，即剩余资源全部分配一个用户进行下行数据传输。图9中，DLBP中的第一时间片和相邻的传输数据的第二时间片间没有保护间隔。这样就可以减低系统开销，提供资源利用率。
如图10所示，为本发明实施例所示的又一种帧结构示意图。该帧结构为一种分布式无线帧的结构示意图。该帧结构可以适用于上行波束训练&接入过程(UL beamtraining & access procedure)和上行数据传输(uplink data transmission)过程。
图10所示的无线帧中，假定一个无线帧(frame)的帧长为10ms。一个无线帧由10个帧长为1毫秒的无线子帧(subframe)构成。其它相关内容可以参见图2对应的相关描述。
无线子帧可以包括：一般子帧和特殊子帧。特殊子帧主要用于上行波束训练&接入过程和上行数据传输过程。比如图10中的子帧#6-9，可以用于下行同步以及波束训练过程，和下行数据传输的过程。其中，时间区间包括多个子帧，比如图10中的子帧#6-9。时间区间也可以是一个子帧，图10只是一个示例。该时间区间被分为若干时间片(Slides)。该时间区间包括至少一个第一子时间区间和至少一个第二子时间区间。分别对应两个过程过程1和2。过程1为上行波束训练&接入过程，比如图10中的subframe#6-9中的ULBP(upLink beam training period，上行波束训练区间)对应的过程。过程2为上行数据传输过程，比如比如图9中的subframe#6-9中的数据(data)区间对应的过程。过程1和过程2中相邻的第一时间片和第二时间间没有保护间隔。比如，data#0中的最后一个第二时间片与ULBP#0中的第一个第一时间片间没有保护间隔。也就是相邻的第一时间片和第二时间片间的保护间隔为0。这样就可以减低系统开销，提供资源利用率。过程1和过程2的时间先后关系，本发明实施例并不限定。图10所示的过程的先后顺序仅为一个示例。相邻的第一时间片和第二时间片可以使用相同的波束发射信号。
第一子时间区间包含n个时间片。所述第一子时间区间包括d个第一时间片集合，所述d个第一时间片集合中至少有两个第一时间区间集合不相邻。每个第一时间集合可以称为一个ULBP(upLink beam training period，下行波束训练区间)子区间。比如图10中子帧subframe#6中最后一个时隙(slots)的ULBP#0,以及subframe#7-9中最后一个时隙(slots)中的ULBP(subframe#7-9中的ULBP类似，附图中没有标注出。)，总共包含4个ULBP。图10中的ULBP都不相邻，图10中ULBP的分布只是一个示例， 还可以是其它分布方式，本发明实施例不做限定，只要至少至少有两个第一时间区间集合不相邻就可以。
每个第一时间片集合可以包含Nd个第一时间片，比如ULBP0包括B0-BNd-1个时间片。基站在一个ULBP子区间内可以遍历一遍其所有的接收波束，依次通过不同的波束接收用户发送的上行接入信号。Nd的大小与波束覆盖宽度和系统拟覆盖区域有关，典型的Nd可以取值为9。每个第一时间片集合包含的第一时间片的个数可以相同，也可以不同。其中每个第一时间片集合中相邻的第一时间片间有保护间隔，比如图中的保护间隔2。不同的保护间隔2可以相同，也可以不相同。所述每个第一时间片集合可以采用Nd个接收波束来接收用户发送的上行接入信号。同一个时间片集合中相邻时间片所采用的接收波束可以不同。不同时间片集合所采用的接收波束可以相同，也可以不同。比如，在各个时间片上基站可以使用接收波束来接收用户发送的上行接入信号，例如，在时间片B0上通过接收波束#0接收接入信号，在时间片B1上通过接收波束#1接收接入信号。每个时间片后预留一个波束切换保护间隔用于不同接收波束之间的切换。上述第一时间片的长度可以为2个符号，其中一个符号发送主同步信号，另一个符号发送辅同步信号。
一个ULBP子区可以对应一个终端设备的发送波束周期。终端设备在一个ULBP子区间内通过一个固定的发送波束发送上行接入信号，即用户设备在一个时隙内改变一次发送波束。在不同的ULBP子区间，终端设备切换不同的发送波束来发送上行接入信号。在一个无线帧内，支持用户设备最多切换d个发送波束，d大小由系统设计时预先确定，典型的d可以取值为4。
第二子时间区间包括d个过程2，每一个第二过程包括m个第二时间片。如果m大于等于2，在所述m个第二时间片中相邻的第二时间片采用不同的波束传输信号，所述相邻的第二时间片存在保护间隔，该保护间隔可以相同，也可以不同。d个过程2可以为相同的过程，比如图9中的data#0-1都是用于一个终端设备的数据传输。也可以为不同的过程，比如图9中的data#0-1用于不同终端设备的数据传输。或者，d个过程2可以看成一个过程2的d个子过程2。比如把图中的data#0-1看作一个过程2的2个子过程相邻的第二时间片间的保护间隔2可以相同，也可以不同。如图10所示，在一个ULBP子区间所在时隙内，剩余未用于ULBP的帧资源，可视为一个过程2，用于上行数据传输，这部分资源可以被分为m个时间片，m的大小取决当次上行数据传输使用的发送波束个数。典型的m可以取值为1，即剩余资源全部分配一个用户进行上行数据传输。图10中，ULBP中的第一时间片和相邻的传输数据的第二时间片间没有保护间隔。这 样就可以减低系统开销，提供资源利用率。
上述为本发明实施例所涉及的帧结构。采用上述帧结构，本发明实施例提供一种通信方法。图11，为本发明实施例提供的一种通信方法的流程示意图。该方法包括：
S1101、确定无线帧，所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间的第二保护时间隔为0；所述m和n为正整数。
通信装置，可以为网络设备，也可以是终端设备。网络设备和终端设备相关描述可以参见图1对应的描述。这里不再重复。
通信装置确定用于通信的无线帧。用于通信的无线帧具体可以为上边提到的具体的各种帧结构。这不再重复，可以参见前文。
S1102、通过所述无线帧进行通信。
通信中，收发器在所述相邻的第一时间片和所述第二时间片采用相同的波束进行通信。
具体通信过程，可以分别参见前述对应帧的描述部分。这里不再重复。本发明实施例中的通信方法所采用的帧中至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0，这样就可以减低系统开销，提供资源利用率。
基于相同的思想，本发明实施例提供一种通信装置，用于执行本发明的方法实施例，相关内容可以参见方法的描述，这里不再重复。如图12所示：
通信装置1200包括：处理单元1201和通信单元1202。通信装置可以为网络设备或终端设备。其中，处理单元具体可以是处理器，通信单元具体可以收发器，接收单元具体可以是接收器。
处理单元，用于确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在 第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0；所述m和n为正整数；
通信单元，用于通过所述无线帧进行通信。
处理单元确定用于通信的无线帧。用于通信的无线帧具体可以为上边提到的具体的各种帧结构。这不再重复，可以参见前文。
通信单元在所述相邻的第一时间片和所述第二时间片采用相同的波束进行通信。
具体通信的过程，可以分别参见前述对应帧的描述部分。这里不再重复。本发明实施例中的通信方法所采用的帧中至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0，这样就可以减低系统开销，提供资源利用率。
基于相同的技术构思，本发明实施例提供了一种通信装置1300，用于执行本发明实施例的方法，相关内容可以参见方法的描述，这里不再重复。参见图13，通信装置1300包括：总线1301，以及分别连接到总线1301的处理器1302、存储器1303、发射机1305，接收机1304。通信装置可以为网络设备或终端设备。
其中，发射机1305，接收机1304，用于与对端的通信装置进行通信。
存储器1303，用于存储指令。
处理器1302用于执行存储器1303存储的指令，以在执行指令时执行如下步骤：
确定无线帧，所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0；所述m和n为正整数；
指示所述发射机1305和接收机1304通过所述无线帧与其它通信装置进行通信。
本发明实施例中，确定用于通信的无线帧。用于通信的无线帧具体可以为上边提到的具体的各种帧结构。这不再重复，可以参见前文。所述收发器1304通过所述无线帧与其它通信装置进行通信时，在所述相邻的第一时间片和所述第二时间片采用相同的波束进行通信。
具体通信的过程，可以分别参见前述对应帧的描述部分。这里不再重复。本发明实施例中的通信方法所采用的帧中至少一个所述相邻的第一时间片和所述二时间片间的第二保护间隔为0，这样就可以减低系统开销，提供资源利用率。
需要说明的是，以上处理器可以是一个处理单元，也可以是多个处理单元的统称。例如，该处理器可以是中央处理器(Central Processing Unit；简称：CPU)，也可以是特定集成电路(Application Specific Intergrated Circuit；简称：ASIC)，或者是被配置成实施本发明实施例的一个或多个集成电路，例如：一个或多个微处理器(digital singnal processor；简称：DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array；简称：FPGA)。
存储器可以是一个存储装置，也可以是多个存储元件的统称，且用于存储可执行程序代码、居民接入网设备或终端运行所需要参数、数据等。且存储器可以包括随机存储器(Random-Access Memory；简称：RAM)，也可以包括非易失性存储器(non-volatile memory；简称：NVM)，例如磁盘存储器，闪存(Flash)等。
总线可以是工业标准体系结构(Industry Standard Architecture；简称：ISA)总线、外部设备互连(Peripheral Component；简称：PCI)总线或扩展工业标准体系结构(Extended Industry Standard Architecture；简称：EISA)总线等。该总线可以分为地址总线、数据总线、控制总线等。为便于表示，图中仅用一条线表示，但并不表示仅有一根总线或一种类型的总线。
本领域内的技术人员应明白，本发明的实施例可提供为方法、系统、或计算机程序产品。因此，本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
尽管已描述了本发明的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本发明范围的所有变更和修改。
显然，本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样，倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内，则本发明也意图包含这些改动和变型在内。

Claims (23)

  1. 一种通信方法，其特征在于，包括：
    确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间没有保护间隔；所述m和n为正整数；
    通过所述无线帧进行通信。
  2. 根据权利要求1所述的方法，其特征在于，所述相邻的第一时间片和所述第二时间片采用相同的波束。
  3. 根据权利要求1或2所述的方法，其特征在于，所述n个第一时间片全部相邻。
  4. 根据权利要求3所述的方法，其特征在于，所述第一过程为：下行同步和波束训练过程；所述第一子时间区间包括a个相邻的第一时间片集合，每个第一时间片集合包含na个第一时间片，所述每个第一时间片集合采用na个发送波束来发送下行同步信号。
  5. 根据权利要求4所述的方法，其特征在于，所述第二过程包括：下行数据传输过程，m为下行数据传输使用的发送波束的个数。
  6. 根据权利要求3所述的方法，其特征在于，所述第一过程为：上行随机接入和波束训练过程；所述第一子时间区间包括b个相邻的第一时间片集合，每个第一时间片集合包含nb个第一时间片，所述每个第一时间片集合采用nb个接收波束来接收上行接入信号，所述b和nb为正整数。
  7. 根据权利要求6所述的方法，其特征在于，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
  8. 根据权利要求1或2所述的方法，其特征在于，所述n个第一时间片部分或全部不相邻。
  9. 根据权利要求8所述的方法，其特征在于，所述第一过程包括：下行同步和波束训练过程；所述第一子时间区间包括c个不相邻的第一时间片集合，每个第一时间片 集合包含nc个相邻的第一时间片，所述每个第一时间片集合采用nc个发送波束来发送下行同步信号，所述c和nc为正整数。
  10. 根据权利要求9所述的方法，其特征在于，第二过程为c个，每一个第二过程为：一个下行数据传输过程；m为一个下行数据传输使用的发送波束的个数。
  11. 根据权利要求8所述的方法，其特征在于，所述第一过程包括：上行随机接入和波束训练过程；所述第n个第一时间片包括d个不相邻的第一时间片集合，每个第一时间片集合包含nd个相邻的第一时间片，所述每个第一时间片集合采用nd个接收波束来接收上行接入信号，所述d和nd为正整数。
  12. 根据权利要求11所述的方法，其特征在于，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
  13. 一种通信装置，其特征在于，包括：
    处理单元，用于确定一个无线帧；所述无线帧包括一个时间区间，所述时间区间包含至少一个第一子时间区间和至少一个第二子时间区间，所述第一子时间区间对应第一过程；所述第二时间区间对应第二过程；所述第一子时间区间包括n个第一时间片，在所述n个第一时间片中相邻的第一时间片采用不同的波束，所述相邻的第一时间片存在第一保护间隔；所述第二子时间区间包括m个第二时间片；每一个第一时间片包含至少一个符号，每一个第二时间片包含至少一个符号；至少一个第一时间片与至少一个第二时间片相邻，至少一个所述相邻的第一时间片和所述二时间片间没有保护间隔；所述m和n为正整数；
    通信单元，用于通过所述无线帧进行通信。
  14. 根据权利要求13所述的装置，其特征在于，所述相邻的第一时间片和所述第二时间片采用相同的波束。
  15. 根据权利要求13或14所述的装置，其特征在于，所述n个第一时间片全部相邻。
  16. 根据权利要求15所述的装置，其特征在于，所述第一过程为：下行同步和波束训练过程；所述n个第一时间片包括a个相邻的第一时间片集合，每个第一时间片集合包含na个第一时间片，所述每个第一时间片集合采用na个发送波束来发送下行同步信号。
  17. 根据权利要求16所述的装置，其特征在于，所述第二过程包括：下行数据传输过程，m为下行数据传输使用的发送波束的个数。
  18. 根据权利要求15所述的装置，其特征在于，所述第一过程为：上行随机接入和波束训练过程；所述第一子时间区间包括b个相邻的第一时间片集合，每个第一时间片集合包含nb个第一时间片，所述每个第一时间片集合采用nb个接收波束来接收上行接入信号，所述b和nb为正整数。
  19. 根据权利要求18所述的装置，其特征在于，所述第二过程包括：上行数据传输过程；m为上行数据传输使用的接收波束的个数。
  20. 根据权利要求13或14所述的装置，其特征在于，所述n个第一时间片部分或全部不相邻。
  21. 根据权利要求20所述的装置，其特征在于，所述第一过程包括：下行同步和波束训练过程；所述第一子时间区间包括c个不相邻的第一时间片集合，每个第一时间片集合包含nc个相邻的第一时间片，所述每个第一时间片集合采用nc个发送波束来发送下行同步信号，所述c和nc为正整数。
  22. 根据权利要求21所述的装置，其特征在于，第二过程为c个，每一个第二过程为：一个下行数据传输过程；m为一个下行数据传输使用的发送波束的个数。
  23. 根据权利要求20所述的装置，其特征在于，所述第一过程包括：上行随机接入和波束训练过程；所述第n个第一时间片包括d个不相邻的第一时间片集合，每个第一时间片集合包含nd个相邻的第一时间片，所述每个第一时间片集合采用nd个接收波束来接收上行接入信号，所述d和nd为正整数。
    根据权利要求23所述的装置，其特征在于，所述第二过程包括：上行数据传输过程；
    m为上行数据传输使用的接收波束的个数。
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US20180343155A1 (en) 2018-11-29
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