[go: up one dir, main page]

WO2025000390A1 - 无线通信的方法、终端设备和网络设备 - Google Patents

无线通信的方法、终端设备和网络设备 Download PDF

Info

Publication number
WO2025000390A1
WO2025000390A1 PCT/CN2023/104184 CN2023104184W WO2025000390A1 WO 2025000390 A1 WO2025000390 A1 WO 2025000390A1 CN 2023104184 W CN2023104184 W CN 2023104184W WO 2025000390 A1 WO2025000390 A1 WO 2025000390A1
Authority
WO
WIPO (PCT)
Prior art keywords
antenna port
synchronization signal
random access
terminal device
port set
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
PCT/CN2023/104184
Other languages
English (en)
French (fr)
Inventor
吴作敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
Original Assignee
Guangdong Oppo Mobile Telecommunications Corp Ltd
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 Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202380096567.0A priority Critical patent/CN120982177A/zh
Priority to PCT/CN2023/104184 priority patent/WO2025000390A1/zh
Publication of WO2025000390A1 publication Critical patent/WO2025000390A1/zh
Anticipated expiration legal-status Critical
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements

Definitions

  • the present application relates to the field of communication technology, and more specifically, to a wireless communication method, terminal equipment and network equipment.
  • the present application provides a wireless communication method, terminal equipment and network equipment.
  • the following introduces various aspects involved in the present application.
  • a method for wireless communication comprising: a terminal device detecting a synchronization signal sent by a network device; after the terminal device detects a first synchronization signal, the terminal device determines at least one antenna port associated with the first synchronization signal based on the first synchronization signal.
  • a method for wireless communication comprising: a network device sending a synchronization signal; wherein the synchronization signal comprises a first synchronization signal, and the first synchronization signal is used to determine at least one antenna port associated with the first synchronization signal.
  • a terminal device comprising: a first detection module for detecting a synchronization signal sent by a network device; and a first determination module for determining at least one antenna port associated with the first synchronization signal according to the first synchronization signal after the terminal device detects the first synchronization signal.
  • a network device comprising: a first sending module, configured to send a synchronization signal; wherein the synchronization signal comprises a first synchronization signal, and the first synchronization signal is used to determine at least one antenna port associated with the first synchronization signal.
  • a terminal device comprising a processor, a memory and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the terminal device executes part or all of the steps in the method of the first aspect.
  • a network device comprising a processor, a memory and a communication interface, wherein the memory is used to store one or more computer programs, and the processor is used to call the computer program in the memory so that the network device executes part or all of the steps in the method of the second aspect.
  • an embodiment of the present application provides a communication system, which includes the above-mentioned terminal device and/or network device.
  • the system may also include other devices that interact with the terminal device or network device in the solution provided by the embodiment of the present application.
  • an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a computer to execute part or all of the steps in the methods of the above aspects.
  • an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps in the above-mentioned various aspects of the method.
  • the computer program product can be a software installation package.
  • an embodiment of the present application provides a computer program, which can be operated to enable a computer to execute part or all of the steps in the methods of the above aspects.
  • an embodiment of the present application provides a chip, which includes a memory and a processor, and the processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects.
  • the terminal device can determine the antenna port associated with the first synchronization signal based on the detected first synchronization signal, which is beneficial for the terminal device to subsequently establish a connection with the network device on the antenna port associated with the first synchronization signal, thereby facilitating improving the data transmission throughput and improving the reliability and efficiency of communication.
  • FIGS 1A-1C are diagrams showing examples of system architectures of wireless communication systems to which embodiments of the present application may be applied.
  • 2A-2C are diagrams showing examples of system architectures of wireless communication systems to which the embodiments of the present application may be applied.
  • FIG. 3 is an example diagram of the mapping relationship between SSB and RO.
  • FIG4 is a schematic diagram of a flow chart of a four-step random access process.
  • FIG5 is a schematic diagram of a flow chart of a two-step random access process.
  • FIG6 is a schematic flow chart of a wireless communication method provided in accordance with an embodiment of the present application.
  • FIG. 7 is a schematic flow chart of a wireless communication method provided in another embodiment of the present application.
  • FIG8 is a schematic flow chart of a wireless communication method provided in yet another embodiment of the present application.
  • FIG. 9 is a schematic diagram of a network structure based on a distributed antenna system network provided in an embodiment of the present application.
  • FIG. 10 is a schematic diagram of a network structure based on a distributed antenna system network provided in another embodiment of the present application.
  • FIG. 11 is a schematic diagram of synchronization signal transmission provided in an embodiment of the present application.
  • FIG. 12 is a schematic diagram of synchronization signal transmission provided in another embodiment of the present application.
  • FIG. 13 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
  • FIG. 14 is a schematic diagram of the structure of a network device provided in an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of a communication device provided in 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
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution system of NR system LTE on unlicensed spectrum (LTE-base d access to unlicensed spectrum, LTE-U) system, NR-based access to unlicensed spectrum, NR-U) system, non-terrestrial networks (NTN) system, universal mobile telecommunication system (UMTS), wireless local area networks (WLAN), wireless fidelity (WiFi), fifth generation (5G) system or other communication systems, such as future communication systems, such as sixth generation (6G) systems, and satellite communication systems.
  • 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
  • LTE-A advanced long term evolution
  • NR new radio
  • evolution system of NR system LTE on unlicense
  • D2D device to device
  • M2M machine to machine
  • MTC machine type communication
  • V2V vehicle to vehicle
  • V2X vehicle to everything
  • CA carrier aggregation
  • DC dual connectivity
  • SA standalone
  • the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, where the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, where the authorized spectrum can also be considered as a dedicated spectrum.
  • NTN systems include NR-based NTN systems and IoT-based NTN systems.
  • the embodiments of the present application describe various embodiments in conjunction with network equipment and terminal equipment, wherein the terminal equipment may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent or user device, etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • remote terminal remote terminal
  • mobile device user terminal
  • terminal wireless communication equipment
  • user agent or user device etc.
  • the terminal device may be a station (STATION, ST) in a WLAN, a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolving public land mobile network (PLMN) network, etc.
  • STATION station
  • WLAN Wireless Local Area Network
  • a terminal device may be a device that provides voice and/or data connectivity to a user, and may be used to connect people, objects, and machines, such as a handheld device with a wireless connection function, a vehicle-mounted device, etc.
  • the terminal device in the embodiment of the present application may be a mobile phone, a tablet computer, a laptop, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.
  • MID mobile internet device
  • VR virtual reality
  • AR augmented reality
  • a UE may be used to act as a base station.
  • a UE may act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc.
  • a cellular phone and a car communicate with each other using sidelink signals.
  • Cellular phones and smart home devices communicate with each other without relaying the communication signal through a base station.
  • the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (for example, on airplanes, balloons and satellites, etc.).
  • the terminal device may also be a wearable device.
  • Wearable devices may also be referred to as wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes.
  • a wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also powerful functions achieved through software support, data interaction, and cloud interaction.
  • wearable smart devices include full-featured, large-sized, and fully or partially independent of smartphones, such as smart watches or smart glasses, as well as devices that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various types of smart bracelets and smart jewelry for vital sign monitoring.
  • the network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station.
  • the network device in the embodiment of the present application may refer to a wireless access network (RAN) node (or device) that connects a terminal device to a wireless network.
  • RAN wireless access network
  • Base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc.
  • the base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof.
  • the base station may also refer to a communication module, a modem or a chip used to be arranged in the aforementioned device or apparatus.
  • the base station may also be a mobile switching center and a device to device D2D, vehicle-to-everything (V2X), a device that performs the base station function in machine-to-machine (M2M) communications, a network side device in a 6G network, and a device that performs the base station function in future communication systems.
  • the base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.
  • Base stations can be fixed or mobile.
  • a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station.
  • a helicopter or drone can be configured to act as a device that communicates with another base station.
  • the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU.
  • the gNB may also include an AAU.
  • the network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air.
  • the embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.
  • the network device may have a mobile feature, for example, the network device may be a mobile device.
  • the network device may be a satellite or a balloon station.
  • the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc.
  • the network device may also be a base station set up in a location such as land or water.
  • a network device may provide services for a cell, and a terminal device may communicate with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell.
  • the cell may be a cell corresponding to a network device (e.g., a base station).
  • the cell may belong to a macro base station or a base station corresponding to a small cell.
  • the small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.
  • the communication system scenarios may include TN and NTN.
  • NTN generally uses satellite communication to provide communication services to ground users.
  • the NTN system currently includes NR-NTN and IoT-NTN systems, and may include other NTN systems in the future.
  • the communication scenarios under TN and NTN scenarios are introduced separately in conjunction with the accompanying drawings.
  • FIG1A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application.
  • the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a terminal device 120 (or referred to as a communication terminal device, terminal).
  • the network device 110 may provide communication coverage for a specific geographical area, and may communicate with terminal devices located in the coverage area.
  • FIG1A exemplarily shows a network device and two terminal devices.
  • the communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • FIG1B is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
  • the terminal device 1101 and the satellite 1102 can communicate wirelessly.
  • the network formed between the terminal device 1101 and the satellite 1102 can also be referred to as NTN.
  • the satellite 1102 can have the function of a base station, and the terminal device 1101 and the satellite 1102 can communicate directly. Under this system architecture, the satellite 1102 can be referred to as a network device.
  • a plurality of network devices 1102 may be included in the communication system, and each network device 1102 may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • FIG1C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
  • a terminal device 1201, a satellite 1202 and a base station 1203 are included. Wireless communication can be performed between the terminal device 1201 and the satellite 1202, and communication can be performed between the satellite 1202 and the base station 1203.
  • the network formed between the terminal device 1201, the satellite 1202 and the base station 1203 can also be referred to as NTN.
  • the satellite 1202 may not have the function of a base station, and the communication between the terminal device 1201 and the base station 1203 needs to be transferred through the satellite 1202.
  • the base station 1203 can be referred to as a network device.
  • a plurality of network devices 1203 may be included in the communication system, and the coverage range of each network device 1203 may include other number of terminal devices, which is not limited in the embodiment of the present application.
  • Figures 1A-1C are only examples of the system to which the present application is applicable.
  • the method shown in the embodiment of the present application can also be applied to other systems, such as 5G communication systems, LTE communication systems, etc.
  • the embodiment of the present application does not make specific limitations on this.
  • the wireless communication system shown in Figures 1A-1C may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but the embodiments of the present application are not limited to this.
  • MME mobility management entity
  • AMF access and mobility management function
  • the device with communication function in the network/system in the embodiment of the present application can be called a communication device.
  • the communication device may include a network device 110 and a terminal device 120 with communication function, and the network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here; the communication device may also include other devices in the communication system 100, such as other network entities such as a network controller and a mobile management entity, which is not limited in the embodiment of the present application.
  • the communication system architecture may also change.
  • Distributed MIMO also known as distributed antenna system
  • Massive MIMO also known as massive antenna matrix system
  • Distributed MIMO and/or Massive MIMO may also support cell-free or UE-centric networking scenarios. It should be understood that the above scenarios are applicable to TN and/or NTN.
  • the following is an exemplary introduction to these communication system architectures in conjunction with Figures 2A-2C.
  • FIG2A is a schematic diagram of the architecture of a communication system provided in an embodiment of the present application, and the system architecture may include one or more of the following: a distributed antenna port (Distributed Antenna Port, Distributed AP, or distributed antenna port cluster), a central processing unit (CPU), and a switch module.
  • the communication system may include multiple distributed antenna ports (or distributed antenna port clusters), and different distributed antenna ports (or distributed antenna port clusters) are connected to the CPU through a switch module.
  • the terminal device selects a suitable distributed antenna port (or distributed antenna port cluster) to serve it according to its location area.
  • FIG2A exemplarily shows 2 CPUs, 2 switch modules, 10 distributed antenna ports and 1 terminal device.
  • the communication system may include other numbers of CPUs, and/or other numbers of switch modules, and/or other numbers of distributed antenna ports (or distributed antenna port clusters), and/or other numbers of terminal devices, and the embodiments of the present application do not limit this.
  • FIG2B is a schematic diagram of the architecture of another communication system provided by an embodiment of the present application.
  • FIG2B which includes a terminal device and a satellite cluster, and wireless communication can be carried out between the terminal device and the satellite cluster.
  • the network formed between the terminal device and the satellite cluster can also be referred to as NTN.
  • at least one satellite in the satellite cluster (for example, a satellite located in a central position) can have the function of a base station, and the terminal device and the satellite cluster can communicate directly.
  • a satellite with a base station function can be referred to as a network device.
  • a plurality of satellite clusters may be included in the communication system.
  • each satellite cluster may include one or more network devices.
  • each satellite cluster or each network device may include other numbers of terminal devices within its coverage area, and the embodiments of the present application are not limited to this.
  • FIG2C is a schematic diagram of the architecture of another communication system provided in an embodiment of the present application.
  • FIG2C which includes a terminal device, a satellite cluster and a base station.
  • Wireless communication can be carried out between the terminal device and the satellite cluster, and communication can be carried out between the satellite cluster and the base station.
  • the network formed between the terminal device, the satellite cluster and the base station can also be referred to as NTN.
  • the satellite cluster may not have the function of a base station, and the communication between the terminal device and the base station needs to be transferred through a satellite cluster.
  • the base station can be referred to as a network device.
  • a communication system may include multiple satellite clusters.
  • a network device may be associated with one or more satellite clusters.
  • the communication system may include multiple network devices, and/or each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.
  • the terminal device can perform an initial access process.
  • the following takes the initial access process in the NR system as an example to introduce the initial access process.
  • the initial access process of the terminal device can be completed by detecting the synchronization signal block (synchronization signal/PBCH block, SSB or SS/PBCH block) on the synchronization raster.
  • the synchronization signal block synchronization signal/PBCH block, SSB or SS/PBCH block
  • one SSB may include 4 symbols in the time domain.
  • an SSB may include a primary synchronization signal (PSS), a secondary synchronization signal (SSS) and a physical broadcast channel (PBCH).
  • PSS primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH physical broadcast channel
  • SSB may be transmitted through a discovery signal transmission opportunity window (discovery burst transmission window) or an SSB transmission opportunity window.
  • the discovery signal transmission opportunity window or the SSB transmission opportunity window appears periodically, and the period may be configured by the network device through high-level parameters.
  • the discovery signal transmission opportunity window or the SSB transmission opportunity window may include a set of candidate positions for SSB transmission.
  • a set of SSB transmission opportunities (also referred to as an SSB burst set) may include one or more SSBs.
  • a set of SSB transmission opportunities should complete transmission within one half frame (5ms).
  • the physical-layer cell identities determined based on the SSBs transmitted in a group of SSB transmission opportunities are the same. This is because the physical-layer cell ID is determined based on the PSS sequence and SSS sequence included in the SSB. For the same SSB, the PSS sequence and SSS sequence included are the same, so the physical-layer cell ID determined based on the same SSB is the same.
  • the PSS included in an SSB includes 3 sequences
  • the terminal device determines by detecting the PSS SSS includes 336 sequences.
  • the terminal device determines
  • the physical layer cell ID is determined based on formula (1).
  • DMRS demodulation reference signal
  • a maximum of 64 SSBs can be configured in a group of SSB transmission opportunities, and 6 bits are required to indicate the indexes of these 64 SSBs.
  • the lower 3 bits of these 6 bits can be carried by the DMRS sequence of the PBCH, and the additional upper 3 bits can be directly indicated by the payload content of the PBCH.
  • Different SSBs can be indicated by different SSB indexes.
  • One of the main functions of the SSB index is to allow the UE to obtain system timing information.
  • the SSB index has another function, which is to indicate the quasi co-location (QCL) relationship between SSBs.
  • QCL means that the large-scale parameters of the channel experienced by the symbols on a certain antenna port can be inferred from the channel experienced by the symbols on another antenna port.
  • the large-scale parameters may include delay spread, average delay, Doppler spread, Doppler shift, average gain, and spatial reception parameters.
  • the QCL types in the NR system may include four different QCL types, namely QCL type A, QCL type B, QCL type C, and QCL type D.
  • QCL type A QCL type A
  • QCL type B QCL type B
  • QCL type C QCL type C
  • QCL type D QCL type D
  • SSBs carried by different beams in the 5G NR system constitute an SSB burst set.
  • Different SSB indexes correspond to different SSB time domain position information in the burst set, and also correspond to specific SSB transmission beam information.
  • SSBs with the same SSB index can be considered to have a QCL relationship, and the corresponding types are 'QCL-TypeA' and 'QCL-TypeD'; in other words, SSBs with the same SSB index experience the same or similar large-scale parameters of the channel including Doppler shift, Doppler spread, average delay, delay spread, and spatial reception parameters.
  • the UE can assume that the network device uses the same beam to transmit these SSBs; SSBs corresponding to different SSB indices are not considered to have a QCL relationship, because they may come from different transmission beams of the network device and experience different channel transmission characteristics.
  • the terminal device attempts to search for the SSB through the predefined possible time-frequency positions of the SSB, and then obtains time and frequency synchronization, radio frame timing, and cell ID (such as physical layer cell ID) through the detected SSB.
  • the network device will indicate the SSB actually sent in an SSB burst set through, for example, indication information in a system message. Accordingly, after accessing the network, the terminal device can determine the SSB actually sent in an SSB burst set through the indication information sent by the network device.
  • the terminal device when receiving a physical downlink shared channel (PDSCH), the terminal device should rate match the candidate positions that may be used to send SSB. That is, if the terminal device receives scheduling information indicating When receiving a first PDSCH on a first time-frequency resource, and a second time-frequency resource included in the first time-frequency resource is used to transmit an SSB or the second time-frequency resource may be used to transmit an SSB, the terminal device shall assume that the second time-frequency resource is not used for PDSCH transmission.
  • the resource unit included in the second time-frequency resource may be a resource element (RE) or a physical resource block (PRB).
  • the terminal device may also obtain resource configuration in the random access process according to the received system message of the cell. Random access is a very important process in the initial access process. In addition to completing functions such as establishing a radio resource control (RRC) connection, maintaining uplink synchronization, and cell switching, the random access process also undertakes functions such as beam management and system message requests.
  • RRC radio resource control
  • the resource configuration in the random access process may include the physical random access channel (PRACH) resource configuration, also known as the PRACH transmission opportunity (RO).
  • RO is the time-frequency resource that carries the random access preamble sequence (Preamble).
  • the resource configuration in the random access process may also include the physical uplink shared channel (PUSCH) resource configuration, also known as the PUSCH transmission opportunity (PUSCH Occasion, PO).
  • PUSCH physical uplink shared channel
  • PUSCH Occasion, PO Among them, the message A (MsgA) in the two-step RACH includes MsgA Preamble and MsgA PUSCH, RO is the time-frequency resource used to carry MsgA Preamble, and PO is the time-frequency resource used to carry MsgA PUSCH.
  • the NR system is characterized by supporting downlink multi-beams.
  • the network device Before the network device communicates with the terminal device, the network device needs to know the beam where the terminal device is located and then set the appropriate beam direction in the subsequent data transmission process. Since the PRACH in the random access process is the first information sent by the terminal device to the network device, the function of reporting the beam where the terminal device is located can be carried by PRACH. As an implementation method, the beam where the terminal device is located can be determined by the mapping relationship between SSB and RO.
  • FIG3 shows a schematic diagram of the mapping relationship between SSB and RO, where SSB is on the initial bandwidth part (BWP) of the downlink and RO is on the initial BWP of the uplink.
  • BWP bandwidth part
  • SSB is on the downlink BWP#0 in FIG3
  • RO is on the uplink BWP#0 in FIG3.
  • SSB and RO of the same shape represent a mapping relationship, for example, SSB#0 has a mapping relationship with RO#0, SSB#1 has a mapping relationship with RO#1, and so on.
  • the terminal device Before the terminal device initiates random access, the terminal device will measure and evaluate the signal quality of the cell and the signal strength of each SSB in the cell. When the SSB signal detection strength exceeds the threshold, after determining the SSB with the strongest or stronger signal (for example, the terminal device determines that SSB#1 is the SSB with the strongest signal), the terminal device can determine the RO corresponding to the SSB with the strongest or stronger signal based on the mapping relationship between SSB and RO, and send the preamble on the RO.
  • the terminal device can determine that the PRACH transmission opportunity corresponding to SSB#1 is RO#1 based on the mapping relationship between SSB and RO, and send the preamble on RO#1. Afterwards, if the network device successfully receives the preamble, the network device can obtain the SSB selected by the terminal device based on the resource information of the successful reception of the preamble. For example, the network device can determine that the preamble is associated with SSB#1 based on the association relationship, so that the beam information corresponding to the subsequent communication can be determined based on SSB#1.
  • Fig. 4 is a schematic diagram of the process of four-step random access. As shown in Fig. 4, the four-step random access process may include steps S410 to S440.
  • step S410 the terminal device sends a random access preamble sequence (Preamble, also called message 1, Msg1, etc.) to the network device on the PRACH resource on the uplink initial BWP.
  • Preamble also called message 1, Msg1, etc.
  • step S420 after detecting Msg1, the network device sends a PDCCH scrambled with a random access radio network temporary identifier (RA-RNTI) to the terminal device.
  • the PDCCH can be sent through resources in the Type1-PDCCH common search space (CSS) on the downlink initial BWP.
  • the PDSCH scheduled by the PDCCH may include a random access response (RAR, also called message 2, Msg2, etc.) corresponding to the preamble sent by the terminal device.
  • RAR random access response
  • the terminal device uses RA-RNTI to detect PDCCH on Type1-PDCCH CSS on the downlink initial BWP, and after detecting PDCCH, determines whether to include the RAR sent by the network device to itself according to the PDSCH scheduled by the PDCCH.
  • the RAR may include information such as the uplink authorization of message 3 (Msg3), timing advance command (TA command), temporary RNTI (TC-RNTI), etc.
  • Type1-PDCCH CSS is configured by the network device through system messages and/or high-level parameters.
  • step S430 after receiving the RAR, the terminal device sends message 3 (Msg3) on the uplink resource indicated by the RAR.
  • this step supports HARQ retransmission. That is, if the network device does not correctly receive Msg3, the network device can use the PDCCH scrambled by TC-RNTI to schedule the retransmission of Msg3. Among them, the PDCCH can carry DCI format 0_0.
  • step S440 the fourth step
  • the network device sends a message 4 (Msg4) to the terminal device, which includes a contention resolution message.
  • this step supports HARQ retransmission. If the terminal device does not correctly receive Msg4, the network device may use a TC-RNTI scrambled PDCCH to schedule the retransmission of Msg4. The PDCCH may carry DCI format 1_0. If the terminal device If Msg4 is correctly received and it is determined that the Msg4 is the message of the terminal device, the random access process of the terminal device is successful, otherwise the random access process fails. The terminal device needs to initiate the random access process again from the first step.
  • Fig. 5 is a schematic diagram of the process of two-step random access. As shown in Fig. 5, the two-step random access process may include step S510 and step S520.
  • step S510 the terminal device sends message A (MsgA) to the network device on RO and PO on the uplink initial BWP, where MsgA includes MsgA Preamble and MsgA PUSCH.
  • MsgA message A
  • step S520 after detecting MsgA, the network device sends a PDCCH encrypted with MsgB-RNTI to the terminal device through the resources in the Type1-PDCCH CSS on the downlink initial BWP.
  • the PDSCH scheduled by the PDCCH may include a random access response (also called message B, MsgB, etc.) corresponding to MsgA sent by the terminal device.
  • the PDSCH scheduled by the PDCCH may include the fallback RAR corresponding to the MsgA Preamble sent by the terminal device. Accordingly, the terminal device uses the MsgB-RNTI to detect the PDCCH on the Type1-PDCCH CSS on the downlink initial BWP, and after detecting the PDCCH, determines whether the PDSCH scheduled by the PDCCH includes the success RAR (success RAR) or fallback RAR sent by the network device to itself.
  • the terminal device If the terminal device correctly receives the successful RAR, the terminal device feeds back ACK information to the network device, and the random access process of the terminal device is successful. Or if the terminal device receives a fallback RAR, the terminal device sends Msg3 on the uplink resource indicated by the fallback RAR after receiving the fallback RAR, and the two-step random access process falls back to the four-step random access process. Or if the terminal device does not receive any RAR, the random access process fails, and the terminal device needs to initiate the random access process again from the first step.
  • Some communication systems (such as B5G systems, 6G systems and other future evolving communication systems) consider introducing distributed antenna systems to quickly and flexibly build wireless networks that meet user needs.
  • distributed antenna systems it is not clear how terminal devices and network devices establish communication connections.
  • an embodiment of the present application provides a wireless communication method, terminal device and network device, so that the terminal device can determine the antenna port associated with the first synchronization signal based on the detected first synchronization signal, which is beneficial for the terminal device to subsequently establish a connection with the network device on the antenna port associated with the first synchronization signal, thereby facilitating the improvement of data transmission throughput and the improvement of communication reliability and efficiency.
  • a channel or a signal may be transmitted through an antenna port (AP).
  • AP antenna port
  • a channel or a signal between a network device and a terminal device may be transmitted through an AP.
  • an antenna port may be used to transmit a data stream. Communication between a network device and a terminal device may be performed through one or more antenna ports.
  • an antenna port may correspond to one or a group of physical antennas.
  • the relationship between multiple antenna ports used to transmit communications between a network device and a terminal device may be a distributed antenna port.
  • at least two antenna ports among the multiple antenna ports are distributed antenna ports; or any two antenna ports among the multiple antenna ports are distributed antenna ports.
  • multiple antenna ports or multiple antenna port sets (antenna port clusters) used for communication transmission may be geographically separated, or in other words, the channels or signals transmitted by the multiple antenna ports or multiple antenna port sets used for communication transmission do not have a QCL relationship.
  • the channels or signals transmitted by the multiple antenna ports used for communication transmission do not have a QCL relationship may include: the channels or signals transmitted by at least two antenna ports among the multiple antenna ports do not have a QCL relationship, or the channels or signals transmitted by any two antenna ports among the multiple antenna ports do not have a QCL relationship.
  • the characteristics of the distributed antenna port may include: the channels or signals transmitted by at least two antenna ports among the multiple antenna ports do not have a QCL relationship, or the channels or signals transmitted by any two antenna ports among the multiple antenna ports do not have a QCL relationship.
  • the characteristics of the distributed antenna port may include: the channels or signals transmitted through at least two antenna ports among the multiple antenna ports do not have the first QCL relationship, or the channels or signals transmitted through any two antenna ports among the multiple antenna ports do not have the first QCL relationship.
  • the embodiment of the present application does not limit the large-scale channel parameters associated with the first QCL relationship type.
  • the large-scale channel parameters associated with the first QCL relationship type may include one of the following: ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇ ; ⁇ Doppler shift, Doppler spread, average delay, delay spread, spatial reception parameter ⁇ ; ⁇ Doppler shift, Doppler spread ⁇ ; ⁇ Doppler shift, Doppler spread, spatial reception parameter ⁇ ; ⁇ Doppler shift, average delay ⁇ ; ⁇ Doppler shift, average delay, spatial reception parameter ⁇ ; and ⁇ spatial reception parameter ⁇ .
  • the relationship between multiple antenna ports used to transmit communications between the network device and the terminal device may be centralized antenna ports.
  • any two antenna ports among the multiple antenna ports are centralized antenna ports.
  • the channels or signals transmitted by multiple antenna ports or multiple antenna port sets used for communication transmission have a QCL relationship.
  • the channels or signals transmitted by any two antenna ports among the multiple antenna ports used for communication transmission have a QCL relationship.
  • the characteristics of the centralized antenna port may include: channels or signals transmitted by any two antenna ports among the multiple antenna ports have the second QCL relationship.
  • the embodiment of the present application does not limit the large-scale channel parameters associated with the second QCL relationship type.
  • the large-scale channel parameters associated with the second QCL relationship type may include one of the following: ⁇ Doppler shift, Doppler spread, average delay, delay spread ⁇ ; ⁇ Doppler shift, Doppler spread, average delay, delay spread, spatial reception parameter ⁇ ; ⁇ Doppler shift, Doppler spread ⁇ ; ⁇ Doppler shift, Doppler spread, spatial reception parameter ⁇ ; ⁇ Doppler shift, average delay ⁇ ; ⁇ Doppler shift, average delay, spatial reception parameter ⁇ ; and ⁇ spatial reception parameter ⁇ .
  • the first QCL relationship type and the second QCL relationship type are associated with the same large-scale channel parameters.
  • the large-scale channel parameters associated with the first QCL relationship type and the second QCL relationship type are ⁇ Doppler shift, Doppler spread, average delay, delay spread, spatial reception parameter ⁇ .
  • the first QCL relationship type and the second QCL relationship type are associated with different large-scale channel parameters.
  • the large-scale channel parameters associated with the first QCL relationship type are ⁇ Doppler shift, average delay, spatial reception parameter ⁇
  • the large-scale channel parameters associated with the second QCL relationship type are ⁇ Doppler shift, Doppler spread, average delay, delay spread, spatial reception parameter ⁇ .
  • a network for wireless communication may include one or more antenna port sets, where the antenna port set may also be referred to as an antenna port cluster.
  • An antenna port set may include one or more antenna ports, and one or more antenna ports in the antenna port set may be used to transmit channels or signals, such as transmitting communication signals between a network device and a terminal device.
  • an antenna port set may be a distributed antenna port set, or in other words, an antenna port set includes multiple antenna ports, and the multiple antenna ports include at least two antenna ports that do not have a first QCL relationship. For example, at least two antenna ports included in an antenna port set do not have a first QCL relationship, or any two antenna ports included in an antenna port set do not have a first QCL relationship.
  • an antenna port set may be a centralized antenna port set, or in other words, the antenna ports included in an antenna port set have a second QCL relationship. For example, any two antenna ports included in an antenna port set have a second QCL relationship.
  • an antenna port set may include multiple antenna ports that are geographically close.
  • the multiple antenna ports may be distributed antenna ports; or, the multiple antenna ports may be centralized antenna ports; or, some of the multiple antenna ports are distributed antenna ports and some are centralized antenna ports.
  • the communication network may include one or more antenna ports, and the channel or signal may be transmitted through one or more antenna ports; or, the communication network may include one or more antenna port sets, and the channel or signal may be transmitted through one or more antenna port sets.
  • the frequency resources used for channel or signal transmission can be referred to as carriers.
  • the frequency resources used for downlink channel or signal transmission can be referred to as downlink carriers
  • the frequency resources used for uplink channel or signal transmission can be referred to as uplink carriers.
  • the embodiments of the present application do not limit the frequency resources contained in the carrier.
  • the carrier may include a continuous frequency resource for channel or signal transmission; or, the carrier may include multiple discontinuous frequency resources for channel or signal transmission.
  • the embodiments of the present application do not limit the units of the frequency resources contained in the carrier.
  • the unit of the frequency resource may be a resource block, a resource element, etc.
  • the carrier and the cell may not have an associated relationship, for example, the carrier is not associated with the cell; or, the carrier and the cell may have an associated relationship, for example, “downlink carrier” may be replaced with “downlink cell”, and “uplink carrier” may be replaced with “uplink cell”.
  • the terminal device can select one or more antenna ports (or antenna port sets) that are closer to itself to serve itself according to its geographical location, thereby achieving better data transmission throughput.
  • how the terminal device and the network device establish a communication connection is a problem that needs to be solved.
  • the embodiments of the present application do not limit the application scenarios of the technical solutions of the present application.
  • the present application can be applied to the initial access process of the terminal device, for example, to the four-step random access process, to the two-step random access process, etc.
  • the embodiments of the present application can be applied to TN scenarios or NTN scenarios, etc.
  • FIG6 is a flow chart of a wireless communication method provided by an embodiment of the present application.
  • the method shown in FIG6 is introduced from the perspective of interaction between a terminal device and a network device.
  • the terminal device and the network device may be, for example, any of the terminal devices described in FIG1A to FIG1C.
  • the terminal device and network device may also be any terminal device and network device described in FIG. 2A to FIG. 2C.
  • the method shown in Fig. 6 may include step S610.
  • step S610 the terminal device detects a synchronization signal sent by the network device.
  • the network device may send one or more synchronization signals, and accordingly, the terminal device may detect the one or more synchronization signals sent by the network device so as to perform subsequent operations according to the detected synchronization signals, such as performing random access.
  • the synchronization signal sent by the network device may include a synchronization signal block (SSB), or in other words, the network device may send a synchronization signal to the terminal device in the form of an SSB so that the terminal device performs uplink synchronization according to the SSB.
  • SSB synchronization signal block
  • the embodiments of the present application are not limited thereto.
  • the synchronization signal sent by the network device may be in a form other than an SSB, as long as the synchronization signal is used for uplink synchronization of the terminal device.
  • the synchronization signal may be a synchronization signal such as a PSS or SSS, or the synchronization signal may be a synchronization signal with other names.
  • the synchronization signal sent by the network device may be the same as the synchronization signal block or synchronization signal in the existing system, or may be different from the synchronization signal block or synchronization signal in the existing system, and the embodiment of the present application is not limited to this.
  • the synchronization signal (one or more synchronization signals) sent by the network device may include a first synchronization signal.
  • the first synchronization signal may be any one or more synchronization signals among the synchronization signals sent by the network device.
  • the first synchronization signal may include the synchronization signal with the strongest received signal strength detected by the terminal device.
  • the synchronization signals detected by the terminal device include SSB 0, SSB 1, and SSB 2, among which the received signal strength of SSB 1 is the strongest, then the first synchronization signal may include SSB 1.
  • the first synchronization signal may include a synchronization signal whose received signal strength detected by the terminal device exceeds a certain threshold.
  • the first synchronization signal may include a synchronization signal whose received signal strength detected by the terminal device exceeds -50dBm.
  • the synchronization signals detected by the terminal device include SSB 0, SSB 1, and SSB 2, where the received signal strengths of SSB 0 and SSB 1 exceed the threshold (such as -50dBm)
  • the first synchronization signal may include SSB 0 and SSB 1.
  • the first synchronization signal is sent according to an association relationship between the synchronization signal and the antenna port.
  • the first synchronization signal may be used to determine at least one antenna port associated with the first synchronization signal.
  • the terminal device may determine at least one antenna port associated with the first synchronization signal based on the detected first synchronization signal.
  • the terminal device and/or the network device may determine at least one antenna port associated with the first synchronization signal based on the association relationship between the synchronization signal and the antenna port. That is to say, there may be an association relationship (or mapping relationship, corresponding relationship, etc.) between the synchronization signal and the antenna port, and the terminal device and/or the network device may determine the antenna port associated with a synchronization signal based on the association relationship, or determine the synchronization signal associated with a certain antenna port.
  • association relationship between the synchronization signal and the antenna port please refer to the following text, which will not be repeated here.
  • the method provided in the embodiment of the present application may further include step S620, which is an optional step.
  • step S620 after the terminal device detects the first synchronization signal, it determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal.
  • the at least one antenna port associated with the first synchronization signal can be explicitly or implicitly determined (or indicated) by the first synchronization signal.
  • determining, according to the first synchronization signal, at least one antenna port associated with the first synchronization signal may include determining, according to the first synchronization signal, an identifier of the at least one antenna port associated with the first synchronization signal.
  • the embodiment of the present application does not specifically limit the implementation method of determining at least one antenna port associated with the first synchronization signal according to the first synchronization signal.
  • the identifier of at least one antenna port associated with the first synchronization signal can be determined based on one or more of the following information: the index of the first synchronization signal, the synchronization signal sequence corresponding to the first synchronization signal, and the information transmitted in the downlink channel associated with the first synchronization signal.
  • the identifier of at least one antenna port associated with the first synchronization signal can be determined based on the index of the first synchronization signal. For example, in a case where the association relationship between the synchronization signal and the antenna port is indicated by the index of the synchronization signal and the identifier of the antenna port, the identifier of at least one antenna port associated with the first synchronization signal can be determined based on the index of the first synchronization signal and the association relationship.
  • the identifier of at least one antenna port determined based on the index of the first synchronization signal may be x0, and of course it may be other identifiers, as long as the identifier is determined based on the index of the first synchronization signal.
  • the identifier of at least one antenna port associated with the first synchronization signal may be determined based on the synchronization signal sequence corresponding to (associated with) the first synchronization signal.
  • the embodiment of the present application does not limit the type of the synchronization signal sequence corresponding to the first synchronization signal.
  • the synchronization signal sequence corresponding to the first synchronization signal may include a primary synchronization signal sequence and/or a secondary synchronization signal sequence.
  • the identifier of at least one antenna port associated with the first synchronization signal may be determined based on the synchronization signal sequence of the first synchronization signal and may include one or more of the following: the identifier of at least one antenna port associated with the first synchronization signal is determined based on the primary synchronization signal sequence and the secondary synchronization signal sequence of the first synchronization signal, the identifier of at least one antenna port associated with the first synchronization signal is determined based on the primary synchronization signal sequence of the first synchronization signal, and the identifier of at least one antenna port associated with the first synchronization signal is determined based on the secondary synchronization signal sequence of the first synchronization signal.
  • the identifier of at least one antenna port associated with the first synchronization signal may be determined based on the first synchronization signal.
  • the first synchronization signal may be determined by the primary synchronization signal sequence ID of the first synchronization signal, for example, by the primary synchronization signal sequence ID and the secondary synchronization signal sequence ID of the first synchronization signal; or, by the primary synchronization signal sequence ID of the first synchronization signal; or, by the secondary synchronization signal sequence ID of the first synchronization signal, etc.
  • the identifier of at least one antenna port associated with the first synchronization signal may be determined based on an index of the first synchronization signal, information transmitted in a downlink channel associated with the first synchronization signal, and so on.
  • the transmission position of the first synchronization signal is predefined.
  • the transmission position of the first synchronization signal is predefined in N time units, where N is a positive integer.
  • the embodiment of the present application does not limit the specific length of the above-mentioned N time units.
  • the above-mentioned N time units may be one radio frame.
  • the above-mentioned N time units may be a synchronization signal transmission cycle.
  • the transmission position of the first synchronization signal may be predefined within one radio frame or one synchronization signal transmission cycle.
  • the embodiment of the present application does not limit the unit of the time unit.
  • the unit of the time unit mentioned in the embodiment of the present application may be milliseconds, seconds, microseconds, etc.
  • the time unit mentioned in the embodiment of the present application may be a frame, a half frame, a time slot, a symbol, etc.
  • the time unit mentioned in the present application may be a time unit determined according to the subcarrier spacing, for example, a time unit determined according to a specific subcarrier (such as the subcarrier spacing of a synchronization signal) or a predefined subcarrier spacing.
  • the terminal device can determine the boundary of the N time units based on the detected first synchronization signal.
  • the N time units as a radio frame as an example, assuming that the length of a radio frame includes N time units, starting from the first time unit of the N time units, each time unit includes 2 synchronization signals (such as SSB), when the terminal device searches for SSB 0 or SSB 1, it can be determined that the time unit carrying SSB 0 or SSB 1 is the first time unit in a radio frame, so that the boundary of the radio frame can be determined and the radio frame timing can be obtained.
  • SSB synchronization signals
  • At least one antenna port associated with the first synchronization signal may be determined based on predefined or preconfigured information. For example, at least one antenna port associated with the first synchronization signal may be determined based on a predefined or preconfigured association relationship, and the predefined or preconfigured association relationship may be used to indicate an association relationship between the synchronization signal and the antenna port.
  • the terminal device can determine the antenna port associated with the first synchronization signal based on the detected first synchronization signal, which is beneficial for the terminal device to subsequently establish a connection with the network device on the antenna port associated with the first synchronization signal, thereby facilitating improving the data transmission throughput and improving the reliability and efficiency of communication.
  • Fig. 7 is a flow chart of a wireless communication method provided by another embodiment of the present application.
  • the method shown in Fig. 7 may include step S710 and step S720, which are described below.
  • the terminal device detects a synchronization signal sent by the network device.
  • the terminal device detects one or more synchronization signals sent by the network device.
  • the one or more synchronization signals sent by the network device include a first synchronization signal, and the first synchronization signal may be one or more synchronization signals detected by the terminal device.
  • step S710 For a detailed description of step S710, please refer to the previous description of step S610, which will not be repeated here for the sake of brevity.
  • step S720 the terminal device sends a random access signal through at least one random access transmission opportunity.
  • At least one random access transmission opportunity for sending a random access signal is determined based on an association relationship between the random access transmission opportunity and the antenna port.
  • the terminal device may determine at least one antenna port associated with the first synchronization signal based on the detected first synchronization signal, and then determine the at least one random access transmission opportunity based on the at least one antenna port associated with the first synchronization signal.
  • At least one random access transmission opportunity for sending a random access signal is determined based on an association relationship between the random access transmission opportunity and a synchronization signal.
  • at least one random access transmission opportunity for sending a random access signal is determined based on a first synchronization signal detected by a terminal device and an association relationship between the random access transmission opportunity and the synchronization signal.
  • association relationship between the random access transmission opportunity and the antenna port and the association relationship between the random access transmission opportunity and the synchronization signal, please refer to the introduction below, which will not be described in detail here.
  • the random access signal sent by the terminal device may include, for example, a preamble.
  • the random access signal sent by the terminal device may include, for example, a preamble and uplink information.
  • the terminal device may initiate random access through the random access transmission opportunity set associated with the antenna port associated with the synchronization signal. For example, the terminal device may initiate random access through the random access transmission opportunity set associated with the antenna port set associated with the synchronization signal; or the terminal device may initiate random access through the random access transmission opportunity set associated with the antenna port associated with the synchronization signal.
  • the terminal device may initiate random access through at least one of the plurality of random access transmission opportunity sets associated with the antenna ports associated with the plurality of synchronization signals. For example, the terminal device may initiate random access through at least one of the plurality of random access transmission opportunity sets associated with the plurality of antenna ports associated with the plurality of synchronization signals; or the terminal device may initiate random access through at least one of the plurality of random access transmission opportunity sets associated with the plurality of antenna ports associated with the plurality of synchronization signals.
  • the collection initiates random access.
  • the method provided in the embodiment of the present application may further include step S730.
  • step S730 the network device sends a random access response to the terminal device.
  • the random access response is a response to a random access signal sent by the terminal device.
  • the random access response is sent by the network device through at least one antenna port associated with the first synchronization signal. In some embodiments, the random access response may be sent by the network device through an antenna port in an antenna port set where at least one antenna port associated with the first synchronization signal is located.
  • Fig. 8 is a flow chart of a wireless communication method provided by another embodiment of the present application.
  • the method shown in Fig. 8 may include step S810 and step S820, which are described below.
  • the terminal device detects a synchronization signal sent by the network device.
  • the terminal device detects one or more synchronization signals sent by the network device.
  • the one or more synchronization signals sent by the network device include a first synchronization signal, and the first synchronization signal may be one or more synchronization signals detected by the terminal device.
  • step S810 For a detailed description of step S810, please refer to the previous description of step S610, which will not be repeated here for the sake of brevity.
  • the terminal device sends indication information (such as the third indication information mentioned later) to the network device, and the indication information is used to determine (or indicate) the antenna port selected by the terminal device and/or the synchronization signal selected by the terminal device.
  • the indication information can be used to determine the M antenna ports and/or N synchronization signals selected by the terminal device, where N and M are positive integers.
  • the above-mentioned indication information is used to determine the M antenna ports selected by the terminal device and may include: the above-mentioned indication information may be used to indicate the identifiers of the M antenna ports selected by the terminal device.
  • the M value may be predefined or preconfigured. In some embodiments, the M value may be determined based on a certain threshold value (such as a third threshold value), and the threshold value may be predefined or preconfigured.
  • the M antenna ports selected by the terminal device may be M antenna ports with signal strengths ranging from strong to weak, that is, the M antenna ports selected by the terminal device may be the M antenna ports with the strongest signal strengths among the multiple antenna ports associated with the terminal device.
  • the M antenna ports selected by the terminal device may be M antenna ports greater than or equal to a certain threshold value (such as a third threshold value). In other words, the number of M is determined according to the threshold value.
  • the indication bit may be a preset value or a fill value.
  • the threshold value (such as the third threshold value) used to determine M may be a value indicating signal strength.
  • the threshold value may be a signal strength greater than -50 dBm.
  • the above-mentioned indication information is used to determine the N synchronization signals selected by the terminal device and may include: the above-mentioned indication information may be used to indicate the index of the N synchronization signals selected by the terminal device.
  • the N value may be predefined or preconfigured. In some embodiments, the N value may be determined based on a certain threshold value (such as a fourth threshold value), and the threshold value may be predefined or preconfigured.
  • the N synchronization signals selected by the terminal device may be N synchronization signals whose received signal strengths are from strong to weak, that is, the N synchronization signals selected by the terminal device may be the N synchronization signals with the strongest signal strengths detected by the terminal device.
  • the N synchronization signals selected by the terminal device may be N synchronization signals greater than or equal to a certain threshold value (such as a fourth threshold value). In other words, the number of N is determined according to the threshold value.
  • the indication bit may be a preset value or a fill value.
  • the threshold value (such as the fourth threshold value) used to determine N may be a value used to indicate the received signal strength.
  • the threshold value may be a received signal strength greater than -50 dBm.
  • the embodiment of the present application does not specifically limit the manner of carrying the indication information in step S820.
  • the indication information may be carried in one or more of the following transmissions: a random access signal, an uplink transmission scheduled by a random access response, and an uplink transmission after the random access process is completed.
  • the indication information may be carried in a preamble.
  • the indication information may be carried in Msg3.
  • the indication information may be carried in Msg 5 after the random access process is completed.
  • the indication information may be carried in uplink scheduling after the random access process is completed.
  • the indication information may be carried in uplink information in a two-step random access process, etc.
  • the terminal device may attempt to search for the synchronization signal based on predefined possible time-frequency positions of the synchronization signal.
  • the terminal device after the terminal device detects the first synchronization signal, it can obtain time and frequency synchronization and timing according to the detected first synchronization signal, and determine at least one antenna port associated with the first synchronization signal.
  • the processes of the wireless communication methods mentioned in the above embodiments can be combined, such as partial or complete combination, and the embodiments of the present application are not limited to this.
  • the wireless communication method provided in the embodiments of the present application may include the above steps S610, S620 and S720.
  • the wireless communication method provided in the embodiments of the present application may include the above steps S610, S720 and S820.
  • step S720 can be executed after step S620. If the wireless communication method includes the above steps S610, S720 and S820, step S820 can be executed after step S720, before step S720, or simultaneously with step S720, etc.
  • the steps of the wireless communication method are introduced above, and the various associations involved in the embodiments of the present application are introduced in detail below.
  • the associations mentioned below are related to the architecture of the distributed antenna system, or in other words, under different distributed antenna system architectures, the associations mentioned in the embodiments of the present application may be different.
  • the architectures of the two distributed antenna systems involved in the embodiments of the present application are first introduced below.
  • Figure 9 is a schematic diagram of a network structure based on a distributed antenna system provided by an embodiment of the present application.
  • the communication network includes one or more antenna port sets.
  • Figure 9 takes the communication network including two antenna port sets as an example for illustration.
  • the communication network includes antenna port set 0 and antenna port set 1, and each antenna port set includes multiple antenna ports within a certain geographical area.
  • the number of antenna ports included in different antenna port sets may be the same or different, and the present application does not limit this.
  • the different antenna ports included in an antenna port set are geographically different, so it can be considered that any two antenna ports in the antenna port set do not have a first QCL relationship, or in other words, the antenna ports included in the antenna port set are distributed antenna ports.
  • the antenna ports included in an antenna port set may be divided into two types: a primary antenna port and a secondary antenna port.
  • the number of primary antenna ports included in an antenna port set may be one or more, and the number of secondary antenna ports included in an antenna port set may also be one or more.
  • antenna port set 0 and antenna port set 1 each include a primary antenna port, and all antenna ports except the primary antenna port are secondary antenna ports.
  • Figure 10 is a schematic diagram of another network structure based on a distributed antenna system provided in an embodiment of the present application.
  • the communication network includes one or more antenna ports.
  • Figure 10 takes the communication network including 14 antenna ports as an example for illustration.
  • the communication network includes multiple antenna ports within a certain geographical area.
  • the number of physical antennas associated with different antenna ports included in the communication network may be the same or different, and the present application does not limit this.
  • the geographical locations of different antenna ports are not the same, so it can be considered that any two antenna ports do not have a first QCL relationship, or in other words, the antenna ports included in the communication network are distributed antenna ports.
  • the antenna ports included in the communication network shown in Figure 10 do not distinguish between primary antenna ports and secondary antenna ports. However, the embodiments of the present application are not limited thereto. In some embodiments, the antenna ports included in the communication network may also include primary antenna ports and secondary antenna ports.
  • Embodiment 1 can be applied to the network architecture shown in FIG9
  • Embodiment 2 can be applied to the network architecture shown in FIG10 .
  • Embodiment 1 Synchronization signal is associated with antenna port set
  • the network device can send a synchronization signal through the antenna port in the antenna port set.
  • the network device can send a synchronization signal through the antenna port in the antenna port set 0 and/or the antenna port set 1, as shown in Figure 11.
  • the synchronization signal sent by the network device may refer to a synchronization signal block or other forms of synchronization signals.
  • the synchronization signal sent by the network device may be the same as the synchronization signal in the existing system or may be different from the synchronization signal in the existing system, and this application does not limit this.
  • the terminal device can detect the synchronization signal sent by the network device.
  • the synchronization signal sent by the network device can include a first synchronization signal, and the first synchronization signal can be, for example, any one or more synchronization signals among the synchronization signals sent by the network device.
  • the first synchronization signal may be, for example, a synchronization signal with the strongest received signal strength detected by the terminal device.
  • the first synchronization signal may be, for example, a synchronization signal whose received signal strength detected by the terminal device exceeds a first threshold.
  • the first threshold may be a value set according to actual conditions, for example, the first threshold is -50dBm. It should also be noted that the embodiment of the present application does not limit the configuration method of the first threshold.
  • the first threshold may be predefined or preconfigured, or may be configured by a network device through high-level signaling (such as RRC signaling), or may be determined based on the implementation of the terminal device.
  • the terminal device after the terminal device detects the first synchronization signal, it can determine the first synchronization signal is turned off according to the first synchronization signal. At least one antenna port connected.
  • At least one antenna port associated with the first synchronization signal is an antenna port in a first antenna port set, wherein the first synchronization signal is associated with the first antenna port set.
  • the first antenna port set can be any antenna port set in the wireless communication network system. Taking the network system shown in Figure 9 as an example, the first antenna port set can be antenna port set 0 in Figure 9, or it can be antenna port set 1 in Figure 9.
  • the first antenna port set may include one or more antenna ports.
  • at least two antenna ports among the multiple antenna ports included in the first antenna port set may be distributed antenna ports, or in other words, at least two antenna ports among the multiple antenna ports included in the first antenna port set are geographically separated or do not have a first QCL relationship.
  • any two antenna ports among the multiple antenna ports included in the first antenna port set are distributed antenna ports, or in other words, any two antenna ports among the multiple antenna ports included in the first antenna port set are geographically separated or do not have a first QCL relationship.
  • the association of the first synchronization signal with the first antenna port set may mean that there is an association relationship or a mapping relationship between the first synchronization signal and the first antenna port set, and the first antenna port set can be determined based on the first synchronization signal, or the first synchronization signal can be determined based on the first antenna port set.
  • the association relationship between the first synchronization signal and the first antenna port set is indicated by a first association relationship.
  • the first association relationship can be used to indicate the association relationship between the synchronization signal and the antenna port set, such as indicating antenna port sets to which different synchronization signals are respectively associated.
  • different antenna port sets may be associated with different synchronization signals.
  • the association relationship between the different antenna port sets and the different synchronization signals may be indicated by a first association relationship.
  • the first association relationship is introduced below.
  • the first association relationship may indicate the association relationship between the synchronization signal and the antenna port set by indicating the index of the synchronization signal and the identifier of the antenna port set.
  • the first association relationship may include: SSB 0 is associated with antenna port set 0, SSB 1 is associated with antenna port set 1, etc.
  • one synchronization signal in the first association relationship, may be associated with one antenna port set, that is, there may be a one-to-one correspondence between the synchronization signal and the antenna port set.
  • SSB 0 is associated with antenna port set 0
  • SSB 1 is associated with antenna port set 1.
  • one synchronization signal in the first association relationship, may be associated with multiple antenna port sets, that is, there may be a one-to-many correspondence between the synchronization signal and the antenna port set.
  • SSB 0 is associated with both antenna port set 0 and antenna port set 1.
  • multiple synchronization signals in the first association relationship, can be associated with one antenna port set, that is, there can be a many-to-one correspondence between the synchronization signals and the antenna port sets.
  • SSB 0 and SSB 1 are both associated with antenna port set 0.
  • the first association relationship may include one or more of the following: a correspondence between a synchronization signal and an antenna port set; a correspondence between a synchronization signal and multiple antenna port sets; a correspondence between multiple synchronization signals and an antenna port set; a one-to-one correspondence between multiple synchronization signals and multiple antenna port sets; a correspondence between a synchronization signal index and an antenna port set identifier; a correspondence between a synchronization signal index and multiple antenna port set identifiers; a correspondence between multiple synchronization signal indexes and an antenna port set identifier; and a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port set identifiers.
  • the first association relationship may be predefined or preconfigured.
  • the first association relationship may be predefined by a protocol.
  • the first association relationship may be configured by the network device through high-level signaling.
  • the terminal device determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal, which may include the terminal device determining an identifier of the first antenna port set according to the first synchronization signal. For example, the terminal device determines the identifier of the first antenna port set associated with the first synchronization signal according to the first synchronization signal and the first association relationship.
  • the terminal device determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal, which may include the terminal device determining the identifier of at least one antenna port in the first antenna port set according to the first synchronization signal. For example, the terminal device determines the first antenna port set associated with the first synchronization signal or the identifier of the first antenna port set according to the first synchronization signal and the first association relationship, and further determines the identifier of at least one antenna port in the first antenna port set from the first antenna port set (such as the identifier of the primary antenna port or the identifier of the secondary antenna port in the first antenna port set, etc.).
  • the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set is determined according to the first synchronization signal.
  • the embodiment of the present application does not specifically limit the implementation method of determining the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set according to the first synchronization signal.
  • the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set can be explicitly or implicitly determined by the first synchronization signal.
  • the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set may be determined according to one or more of the following information: an index of the first synchronization signal, a synchronization signal sequence corresponding to the first synchronization signal, As well as information transmitted in the downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent by the network device to the terminal device.
  • the sending of the first synchronization signal is introduced below.
  • the first synchronization signal may be sent according to the first association relationship.
  • the terminal device determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal, which may include: the terminal device determines the first antenna port set according to the first synchronization signal and the first association relationship.
  • the first synchronization signal is sent through some antennas in the first antenna port set.
  • the first antenna port set includes antenna port 0, antenna port 1, and antenna port 2.
  • the first synchronization signal may be sent through antenna port 0, antenna port 1, or antenna port 0 and antenna port 2.
  • the first synchronization signal is sent through all antenna ports (all antenna ports) in the first antenna port set. That is, all antenna ports in the first antenna port set are used to send the first synchronization signal.
  • the first antenna port set includes antenna port 0, antenna port 1, and antenna port 2, where antenna port 0, antenna port 1, and antenna port 2 all send the first synchronization signal.
  • the first antenna port set may include a primary antenna port.
  • the first synchronization signal may be sent through the primary antenna port.
  • the first antenna port set may include one or more primary antenna ports, and the one or more primary antenna ports may be used to send the first synchronization signal.
  • the first antenna port set may include a secondary antenna port, for example, one or more secondary antenna ports.
  • the secondary antenna port in the first antenna port set does not send a synchronization signal, for example, the secondary antenna port does not send a first synchronization signal, nor does it send other synchronization signals.
  • the primary antenna port in the first antenna port set may send a synchronization signal, and the secondary antenna port in the first antenna port set may not send a synchronization signal.
  • the primary antenna port may send a first synchronization signal, and the secondary antenna port may not send a first synchronization signal.
  • some antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set.
  • the first synchronization signal has a one-to-one association relationship with the first antenna port set, and some antenna ports in the first antenna port set do not send synchronization signals other than the first synchronization signal.
  • the first antenna port set includes antenna port 0, antenna port 1, and antenna port 2, antenna port 0 does not send synchronization signals other than the first synchronization signal, or antenna port 0 and antenna port 1 do not send synchronization signals other than the first synchronization signal, etc.
  • all antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set. For example, if the first synchronization signal has a one-to-one association with the first antenna port set, then all antenna ports in the first antenna port set do not send synchronization signals other than the first synchronization signal.
  • the first antenna port set includes antenna port 0, antenna port 1, and antenna port 2, and antenna port 0, antenna port 1, and antenna port 2 do not send synchronization signals other than the first synchronization signal.
  • the primary antenna port and/or the secondary antenna port in the first antenna port set do not send a synchronization signal that is not associated with the first antenna port set.
  • the primary antenna port in the first antenna port set does not send a synchronization signal that is not associated with the first antenna port set; or, the secondary antenna port in the first antenna port set does not send a synchronization signal that is not associated with the first antenna port set; or, both the primary antenna port and the secondary antenna port in the first antenna port set do not send a synchronization signal that is not associated with the first antenna port set.
  • At least one random access transmission opportunity in the first random access transmission opportunity set is used to send a random access signal (such as a preamble).
  • different antenna port sets may be associated with different random access transmission opportunity sets.
  • the association relationship between the different antenna port sets and the different random access transmission opportunity sets may be indicated by a second association relationship.
  • different synchronization signals may be associated with different random access transmission opportunity sets.
  • the association relationship between the different synchronization signals and the different random access transmission opportunity sets may be indicated by a second association relationship. The second association relationship is introduced below.
  • the association relationship between the antenna port set and the random access transmission opportunity set is directly indicated, for example, the second association relationship is directly used to indicate the association relationship between the antenna port set and the random access transmission opportunity set.
  • the association relationship between the antenna port set and the random access transmission opportunity set is indirectly indicated, for example, the second association relationship indirectly indicates the association relationship between the antenna port set and the random access transmission opportunity set by indicating the association relationship between the antenna port set and the synchronization signal, and the association relationship between the synchronization signal and the random access transmission opportunity set.
  • antenna port set 0 is associated with SSB 0
  • SSB 0 is associated with random access transmission opportunity set 0
  • antenna port set 0 is associated with random access transmission opportunity set 0.
  • antenna port set 1 is associated with SSB 1
  • SSB 1 is associated with random access transmission opportunity set 1
  • antenna port set 1 is associated with random access transmission opportunity set 1.
  • the second association relationship may indicate the association relationship between the antenna port set and the random access transmission opportunity set by indicating the identifier of the antenna port set and the identifier of the random access transmission opportunity set.
  • the second association relationship may include: antenna port set 0 is associated with random access transmission opportunity set 0, antenna port set 1 is associated with random access transmission opportunity set 1, etc.
  • one antenna port set may be associated with one random access transmission opportunity set, that is, there may be a one-to-one correspondence between the antenna port set and the random access transmission opportunity set.
  • antenna port set 0 is associated with random access transmission opportunity set
  • antenna port set 1 is associated with random access transmission opportunity set 1.
  • one antenna port set may be associated with multiple random access transmission opportunity sets, that is, there may be a one-to-many correspondence between the antenna port set and the random access transmission opportunity set.
  • antenna port set 0 is associated with both random access transmission opportunity set 0 and random access transmission opportunity set 1.
  • multiple antenna port sets can be associated with one random access transmission opportunity set, that is, there can be a many-to-one correspondence between the antenna port set and the random access transmission opportunity set.
  • antenna port set 0 and antenna port set 1 are both associated with random access transmission opportunity set 0.
  • the second association relationship may indicate the association relationship between the synchronization signal and the random access transmission opportunity set by indicating the index of the synchronization signal and the identifier of the random access transmission opportunity set.
  • the second association relationship may include: SSB 0 is associated with random access transmission opportunity set 0, SSB 1 is associated with random access transmission opportunity set 1, etc.
  • a synchronization signal in the second association relationship, can be associated with a random access transmission opportunity set, that is, there can be a one-to-one correspondence between the synchronization signal and the random access transmission opportunity set.
  • SSB 0 is associated with random access transmission opportunity set
  • SSB 1 is associated with random access transmission opportunity set 1.
  • one synchronization signal in the second association relationship, may be associated with multiple random access transmission opportunity sets, that is, there may be a one-to-many correspondence between the synchronization signal and the random access transmission opportunity set.
  • SSB 0 is associated with both random access transmission opportunity set 0 and random access transmission opportunity set 1.
  • multiple synchronization signals may be associated with one random access transmission opportunity set, that is, there may be a many-to-one correspondence between the synchronization signals and the random access transmission opportunity set.
  • SSB 0 and SSB 1 are both associated with random access transmission opportunity set 0.
  • the second association relationship may include one or more of the following: a correspondence between an antenna port set and a random access transmission opportunity set; a correspondence between an antenna port set and multiple random access transmission opportunity sets; a correspondence between multiple antenna port sets and a random access transmission opportunity set; a one-to-one correspondence between multiple antenna port sets and multiple random access transmission opportunity sets; a correspondence between an antenna port set identifier and a random access transmission opportunity set identifier; a correspondence between an antenna port set identifier and multiple random access transmission opportunity set identifiers; a correspondence between multiple antenna port set identifiers and a random access transmission opportunity set identifier; a correspondence between multiple antenna port set identifiers and multiple A one-to-one correspondence between a random access transmission opportunity set identifier; a correspondence between a synchronization signal and a random access transmission opportunity set; a correspondence between a synchronization signal and multiple random access transmission opportunity sets; a correspondence between multiple synchronization signals and a random access transmission opportunity set; a one-to-one correspondence between a random
  • the second association relationship may be predefined or preconfigured.
  • the second association relationship may be predefined by a protocol.
  • the second association relationship may be configured by the network device through high-level signaling.
  • the terminal device may send a random access signal through at least one random access transmission opportunity in the first random access transmission opportunity set, and the at least one random access transmission opportunity is determined according to the second association relationship.
  • the terminal device may determine at least one random access transmission opportunity in the first random access transmission opportunity set according to the second association relationship, and send a random access signal through the at least one random access transmission opportunity.
  • the terminal device may send a random access signal to at least one antenna port in the first antenna port set.
  • at least one antenna port in the first antenna port set may be used to detect a first random access transmission opportunity set associated with the first antenna port set.
  • at least one antenna port in the first antenna port set may be used to monitor whether there is a random access signal on a resource in the first random access transmission opportunity set associated with the first antenna port set; and/or, at least one antenna port in the first antenna port set may be used to receive a random access signal transmitted on a resource in the first random access transmission opportunity set associated with the first antenna port set.
  • the terminal device may send a random access signal to at least one antenna port in the first antenna port set, which may include one or more of the following: the terminal device sends a random access signal to the antenna port that sends the first synchronization signal in the first antenna port set; the terminal device sends a random access signal to some antenna ports in the first antenna port set; the terminal device sends a random access signal to the first antenna port set. All antenna ports in the port set send random access signals; the terminal device sends a random access signal to the main antenna port in the first antenna port set; the terminal device sends a random access signal to the auxiliary antenna port in the first antenna port set.
  • the terminal device sending a random access signal to the antenna port that sends the first synchronization signal in the first antenna port set can be understood as the antenna port that sends the first synchronization signal and the antenna port that detects the random access signal are the same antenna port. For example, if the first synchronization signal is sent on antenna port 0 in the first antenna port set, then the subsequent random access signal detection will also be performed on antenna port 0 in the first antenna port set.
  • all antenna ports in the first antenna port set can be used to detect the random access signal.
  • the secondary antenna port in the first antenna port set can detect the random access signal and report the detection result to the primary antenna port; the primary antenna port in the first antenna port set can detect the random access signal and perform random access response scheduling according to the detected random access signal.
  • one or more primary antenna ports in the first antenna port set may be used to detect the random access signal.
  • one or more secondary antenna ports in the first antenna port set may be used to detect the random access signal.
  • the secondary antenna ports in the first antenna port set do not detect the random access transmission opportunity set associated with the first antenna port set. In other words, the secondary antenna ports in the first antenna port set do not detect the random access signal.
  • At least one antenna port in the first antenna port set can be used to detect a first random access transmission opportunity set associated with the first antenna port set, and the at least one antenna port does not detect a random access transmission opportunity set that is not associated with the first antenna port set.
  • the terminal device sending a random access signal to at least one antenna port in the first antenna port set may mean that the transmitting spatial filter of the terminal device sending the random access signal partially overlaps or completely overlaps with the receiving spatial filter of the at least one antenna port.
  • the terminal device sending a random access signal to the main antenna port in the first antenna port set may mean that the transmitting spatial filter of the terminal device sending the random access signal partially overlaps or completely overlaps with the receiving spatial filter of the main antenna port in the first antenna port set.
  • the terminal device sending a random access signal to at least one antenna port in the first antenna port set may mean that the resource from which the terminal device sends the random access signal has an associated relationship with the at least one antenna port.
  • the terminal device sending a random access signal to a primary antenna port in the first antenna port set may mean that the resource from which the terminal device sends the random access signal has an associated relationship with the primary antenna port in the first antenna port set.
  • the terminal device sending a random access signal to at least one antenna port in the first antenna port set may mean that the transmission beam direction used by the terminal device to send the random access signal has an associated relationship with the reception beam direction of the at least one antenna port.
  • the terminal device sending a random access signal to the main antenna port in the first antenna port set may mean that the transmission beam direction used by the terminal device to send the random access signal has an associated relationship with the reception beam direction of the main antenna port in the first antenna port set.
  • the terminal device may send a random access signal through at least one random access transmission opportunity in the first random access transmission opportunity set, which may include that the terminal device sends a random access signal to at least one antenna port in the first antenna port set through at least one random access transmission opportunity in the first random access transmission opportunity set.
  • the at least one antenna port in the first antenna port set may be one or more of the following: an antenna port in the first antenna port set that sends a first synchronization signal, some antenna ports in the first antenna port set, all antenna ports in the first antenna port set, a primary antenna port in the first antenna port set, and a secondary antenna port in the first antenna port set.
  • the terminal device may also detect a random access response, where the random access response is a response to the random access signal sent by the terminal device.
  • the present application does not specifically limit the antenna port for sending the random access response.
  • the random access response is sent through at least one antenna port in the first antenna port set.
  • the at least one antenna port in the first antenna port set may be one or more of the following: an antenna port in the first antenna port set that sends the first synchronization signal, some antenna ports in the first antenna port set, all antenna ports in the first antenna port set, a primary antenna port in the first antenna port set, and a secondary antenna port in the first antenna port set.
  • the primary antenna port in the first antenna port set can be used to send a random access response.
  • the primary antenna port in the first antenna port set can schedule the secondary antenna port to send a random access response, for example, the primary antenna port can schedule the secondary antenna port that detects the random access signal to send a random access response.
  • At least one antenna port in the first antenna port set may be used to transmit first indication information, and the first indication information may be used to determine the first antenna port set and/or a transmitted synchronization signal.
  • the first indication information is described in detail below.
  • the first indication information may be used to determine at least one of the following information: an identifier of the first antenna port set; an identifier of the antenna port included in the first antenna port set; an identifier of the primary antenna port in the first antenna port set;
  • the invention relates to an identifier of a secondary antenna port in the first antenna port set; an identifier of an antenna port that sends a first synchronization signal in the first antenna port set; an identifier of an antenna port that detects a random access signal in the first antenna port set; an identifier of an antenna port that sends a random access response in the first antenna port set; an index of a synchronization signal transmitted in the communication network in which the first antenna port set is located; an index of a synchronization signal associated with the first antenna port set; an index of a synchronization signal for which rate matching is required for antenna ports in the first antenna port set when performing data transmission; a type of quasi-co-location relationship associated with the first antenna port set; and an association relationship between the first antenna port
  • the first indication information used to determine the synchronization signal to be transmitted may include the first indication information used to indicate the synchronization signal associated with the first antenna port set to determine the synchronization signal transmitted by the first antenna port set.
  • the first indication information indicates that the transmitted synchronization signal is SSB 0 by indicating that the synchronization signal associated with the first antenna port set is SSB 0.
  • the first indication information used to determine the transmitted synchronization signal may include: the first indication information is used to indicate the synchronization signal transmitted in the communication network where the first antenna port set is located.
  • the communication network where the first antenna port set is located includes a first antenna port set and a second antenna port set, the first antenna port set is associated with SSB 0, and the second antenna port set is associated with SSB 1, and at least one antenna port in the first antenna port set can send the first indication information, and the first indication information indicates that the transmitted synchronization signals are SSB 0 and SSB 1.
  • the embodiment of the present application does not specifically limit the at least one antenna port for transmitting the first indication information.
  • the at least one antenna port for transmitting the first indication information may be one or more of the following: an antenna port for sending the first synchronization signal in the first antenna port set, an antenna port for detecting the random access signal in the first antenna port set, and all antenna ports in the first antenna port set.
  • the antenna ports in the first antenna port set may perform rate matching on resources used for synchronization signal transmission when scheduling data transmission.
  • the antenna ports in the first antenna port set may perform rate matching on the resources for synchronization signal transmission associated with the first antenna port set.
  • the first antenna port set is associated with SSB 0, and the antenna ports in the first antenna port set schedule a first time-frequency resource for data transmission, and SSB 0 transmission occupies a second time-frequency resource. If the first time-frequency resource and the second time-frequency resource at least partially overlap in the time domain and/or frequency domain, the overlapping portion is not used for data transmission.
  • the antenna ports in the first antenna port set may rate match the resources of the synchronization signal transmitted in the communication network where the first antenna port set is located.
  • the SSBs transmitted in the communication network where the first antenna port set is located include SSB 0 and SSB 1, and the antenna ports in the first antenna port set schedule the first time-frequency resource for data transmission, and the transmission of SSB 0 and SSB 1 occupies the third time-frequency resource. If the first time-frequency resource and the third time-frequency resource at least partially overlap in the time domain and/or frequency domain, the overlapping portion is not used for data transmission.
  • the following takes the synchronization signal as the SSB in the NR system and the random access transmission opportunity set as the RO set in the NR system as an example, and describes the initial access process in Example 1 in combination with the network architecture shown in Figure 9.
  • the communication network includes a first AP set (such as AP set 0 in FIG. 9 ) and a second AP set (such as AP set 1 in FIG. 9 ), the APs in the first AP set transmit SSB 0, and the APs in the first AP set do not transmit SSB 1; the APs in the second AP set transmit SSB 1, and the APs in the second AP set do not transmit SSB 0.
  • the positions of SSB 0 and SSB 1 in the radio frame are the same as the positions of SSB 0 and SSB 1 in the radio frame in the NR system.
  • the identifier of the AP set is determined according to the SSB index, that is, the identifier of the first AP set associated with SSB 0 is 0, and the identifier of the second AP set associated with SSB 1 is 1.
  • the first AP set is associated with the first RO set
  • the second AP set is associated with the second RO set.
  • the terminal device attempts to search for the SSB through the predefined possible time-frequency positions of the SSB.
  • the terminal device may detect SSB 1, and obtain time and frequency synchronization, wireless frame timing, and determine the identity of the second AP set through the detected SSB 1; accordingly, the terminal device can initiate random access to the network device through the RO in the second RO set.
  • the terminal device may also detect SSB 0 and SSB 1, and obtain time and frequency synchronization, wireless frame timing, and determine the first AP set identifier and the second AP set identifier through the detected SSB 0 and SSB 1. Accordingly, the terminal device may initiate random access to the network device through the RO in the first RO set; or, the terminal device may initiate random access to the network device through the RO in the second RO set; or, the terminal device may select an AP set associated with a stronger SSB, such as the second AP set, based on the received signal strength of SSB 0 and SSB 1, and initiate random access to the network device based on the RO in the second RO set associated with the second AP set.
  • a stronger SSB such as the second AP set
  • the master AP in the first AP set transmits SSB 0, and the secondary AP does not transmit SSB 0; the master AP in the second AP set transmits SSB 1, and the secondary AP does not transmit SSB 1. Accordingly, the master AP in the first AP set detects ROs in the first RO set, and the secondary AP does not detect ROs in the first RO set; the master AP in the second AP set detects ROs in the second RO set, and the secondary AP does not detect ROs in the second RO set.
  • all APs in the first AP set transmit SSB 0; and all APs in the second AP set transmit SSB 1. Accordingly, all APs in the first AP set detect ROs in the first RO set; and all APs in the second AP set detect ROs in the second RO set.
  • the terminal device initiates random access including sending a random access preamble sequence.
  • the network device schedules the master AP to send the RAR corresponding to the random access preamble sequence to the terminal device; after receiving the RAR, the terminal device sends message 3 to the master AP; after receiving message 3, the network device schedules the master AP to send message 4 to the terminal device, thereby completing random access.
  • this embodiment is applicable to the case where the master AP in the AP set transmits the SSB associated with the AP set.
  • the secondary AP in the AP set detects the random access preamble sequence transmitted on the RO
  • the secondary AP reports the detection result to the network device
  • the network device schedules the primary AP in the AP set to send the RAR corresponding to the random access preamble sequence to the terminal device; after receiving the RAR, the terminal device sends message 3 to the primary AP; after receiving message 3, the network device schedules the primary AP to send message 4 to the terminal device, thereby completing random access.
  • this embodiment is applicable to the case where the primary AP in the AP set transmits the SSB associated with the AP set, and the secondary AP does not transmit the SSB associated with the AP set.
  • the network device schedules the secondary AP to send the RAR corresponding to the random access preamble sequence to the terminal device; after receiving the RAR, the terminal device sends message 3 to the secondary AP; after receiving message 3, the network device schedules the secondary AP to send message 4 to the terminal device, thereby completing random access.
  • this embodiment is applicable to the case where the secondary AP in the AP set transmits the SSB associated with the AP set.
  • the terminal device initiates random access including sending a random access preamble sequence and uplink information.
  • the network device schedules the master AP to send the RAR corresponding to the successful random access to the terminal device, thereby completing the random access;
  • the network device schedules the master AP to send the RAR corresponding to the random access preamble sequence to the terminal device, and falls back to the four-step random access process.
  • this embodiment is applicable to the case where the master AP in the AP set transmits the SSB associated with the AP set.
  • the secondary AP in the AP set detects the random access preamble sequence and uplink information transmitted on the RO, the secondary AP reports the detection result to the network device, and the network device schedules the primary AP in the AP set to send the RAR corresponding to the successful random access to the terminal device, thereby completing the random access;
  • the network device schedules the primary AP in the AP set to send the RAR corresponding to the random access preamble sequence to the terminal device, and falls back to the four-step random access process.
  • this embodiment is applicable to the case where the primary AP in the AP set transmits the SSB associated with the AP set, and the secondary AP does not transmit the SSB associated with the AP set.
  • the network device schedules the secondary AP to send the RAR corresponding to the successful random access to the terminal device, thereby completing the random access; when the secondary AP in the AP set detects the random access preamble sequence transmitted on the RO but does not detect the uplink information, the network device schedules the secondary AP to send the RAR corresponding to the random access preamble sequence to the terminal device, and falls back to the four-step random access process.
  • this embodiment is applicable to the case where the secondary AP in the AP set transmits the SSB associated with the AP set.
  • Embodiment 2 Synchronization signal and antenna port association
  • the network device can send a synchronization signal through the antenna port in the communication network.
  • the network device can send a synchronization signal through one or more antenna ports from antenna port 0 to antenna port 13, as shown in Figure 12.
  • the synchronization signal sent by the network device may refer to a synchronization signal block or other forms of synchronization signals.
  • the synchronization signal sent by the network device may be the same as the synchronization signal in the existing system or may be different from the synchronization signal in the existing system, and this application does not limit this.
  • the terminal device can detect the synchronization signal sent by the network device.
  • the synchronization signal sent by the network device can include a first synchronization signal, and the first synchronization signal can be, for example, any one or more synchronization signals among the synchronization signals sent by the network device.
  • the first synchronization signal may be, for example, a synchronization signal with the strongest received signal strength detected by the terminal device.
  • the first synchronization signal may be, for example, a synchronization signal whose received signal strength detected by the terminal device exceeds the second threshold.
  • the second threshold may be a value set according to actual conditions, for example, the second threshold is -50dBm. It should also be noted that the embodiment of the present application does not limit the configuration method of the second threshold.
  • the second threshold may be predefined or preconfigured, or may be configured by the network device through high-level signaling (such as RRC signaling), or may be determined based on the implementation of the terminal device.
  • the second threshold and the first threshold mentioned above may be the same.
  • the second threshold and the first threshold are both -50 dBm.
  • the second threshold and the first threshold mentioned above may be different.
  • the value of the second threshold is -50 dBm
  • the value of the first threshold is -55 dBm.
  • the terminal device after the terminal device detects the first synchronization signal, it can determine the first synchronization signal is turned off according to the first synchronization signal. At least one antenna port connected.
  • At least one antenna port associated with the first synchronization signal is a second antenna port, wherein the first synchronization signal is associated with the second antenna port.
  • the second antenna port can be any antenna port in the wireless communication network system. Taking the network system shown in Figure 10 as an example, the second antenna port can be antenna port 0 in Figure 10, or antenna port 2 in Figure 10, or antenna port 12 in Figure 10, etc.
  • the association between the first synchronization signal and the second antenna port may mean that there is an association relationship or a mapping relationship between the first synchronization signal and the second antenna port, and the second antenna port can be determined according to the first synchronization signal, or the first synchronization signal can be determined according to the second antenna port.
  • the association relationship between the first synchronization signal and the second antenna port is indicated by a third association relationship.
  • the third association relationship can be used to indicate the association relationship between the synchronization signal and the antenna port, such as indicating antenna ports to which different synchronization signals are respectively associated.
  • different antenna ports can be associated with different synchronization signals.
  • the association relationship between the different antenna ports and the different synchronization signals can be indicated by a third association relationship.
  • the third association relationship is introduced below.
  • the third association relationship may indicate the association relationship between the synchronization signal and the antenna port by indicating the index of the synchronization signal and the identifier of the antenna port.
  • the third association relationship may include: SSB 0 is associated with antenna port 0, SSB 1 is associated with antenna port 1, etc.
  • one synchronization signal in the third association relationship, can be associated with one antenna port, that is, there can be a one-to-one correspondence between the synchronization signal and the antenna port.
  • SSB 0 is associated with antenna port 0
  • SSB 1 is associated with antenna port 1.
  • one synchronization signal in the third association relationship, can be associated with multiple antenna ports, that is, there can be a one-to-many correspondence between the synchronization signal and the antenna port.
  • SSB 0 is associated with both antenna port 0 and antenna port 1.
  • multiple synchronization signals can be associated with one antenna port, that is, there can be a many-to-one correspondence between the synchronization signals and the antenna ports.
  • SSB 0 and SSB 1 are both associated with antenna port 0.
  • the third association relationship may include one or more of the following: a correspondence between a synchronization signal and an antenna port; a correspondence between a synchronization signal and multiple antenna ports; a correspondence between multiple synchronization signals and one antenna port; a one-to-one correspondence between multiple synchronization signals and multiple antenna ports; a correspondence between a synchronization signal index and an antenna port identifier; a correspondence between a synchronization signal index and multiple antenna port identifiers; a correspondence between multiple synchronization signal indexes and one antenna port identifier; and a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port identifiers.
  • the third association relationship may be predefined or preconfigured.
  • the third association relationship may be predefined by a protocol.
  • the third association relationship may be configured by the network device through high-level signaling.
  • the terminal device determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal, which may include the terminal device determining an identifier of the second antenna port according to the first synchronization signal. For example, the terminal device determines the identifier of the second antenna port associated with the first synchronization signal according to the first synchronization signal and the third association relationship.
  • the identification of the second antenna port is determined according to the first synchronization signal.
  • the embodiment of the present application does not specifically limit the implementation method of determining the identification of the second antenna port according to the first synchronization signal.
  • the identification of the second antenna port can be determined explicitly or implicitly by the first synchronization signal.
  • the identification of the second antenna port can be determined based on one or more of the following information: the index of the first synchronization signal, the synchronization signal sequence corresponding to the first synchronization signal, and the information transmitted in the downlink channel associated with the first synchronization signal.
  • the index of the first synchronization signal the index of the first synchronization signal
  • the synchronization signal sequence corresponding to the first synchronization signal the information transmitted in the downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent by the network device to the terminal device.
  • the sending of the first synchronization signal is introduced below.
  • the first synchronization signal may be sent according to the third association relationship.
  • the terminal device determines at least one antenna port associated with the first synchronization signal according to the first synchronization signal may include: the terminal device determines the second antenna port according to the first synchronization signal and the third association relationship.
  • the second antenna port does not send a synchronization signal that is not associated with the second antenna port. For example, if the first synchronization signal has a one-to-one association with the second antenna port, the second antenna port does not send a synchronization signal other than the first synchronization signal.
  • a fourth association relationship exists between the second antenna port and the second random access transmission opportunity set, and/or a fourth association relationship exists between the first synchronization signal and the second random access transmission opportunity set. At least one random access transmission opportunity in the second random access transmission opportunity set is used to send a random access signal (such as a preamble).
  • different antenna ports may be associated with different random access transmission opportunity sets.
  • the association relationship between the different antenna ports and the different random access transmission opportunity sets may be indicated by a fourth association relationship.
  • different synchronization signals may be associated with different random access transmission opportunity sets.
  • the different synchronization signals may be associated with different The association relationship between the random access transmission opportunity sets can be indicated by a fourth association relationship.
  • the fourth association relationship is introduced below.
  • the association relationship between the antenna port and the random access transmission opportunity set is directly indicated, for example, the fourth association relationship is directly used to indicate the association relationship between the antenna port and the random access transmission opportunity set.
  • the association relationship between the antenna port and the random access transmission opportunity set is indirectly indicated, for example, the fourth association relationship indirectly indicates the association relationship between the antenna port and the random access transmission opportunity set by indicating the association relationship between the antenna port and the synchronization signal, and the association relationship between the synchronization signal and the random access transmission opportunity set.
  • antenna port 0 is associated with SSB 0
  • SSB 0 is associated with random access transmission opportunity set 0 and therefore, antenna port 0 is associated with random access transmission opportunity set 0.
  • antenna port 1 is associated with SSB 1
  • SSB 1 is associated with random access transmission opportunity set 1
  • antenna port 1 is associated with random access transmission opportunity set 1.
  • the fourth association relationship may indicate the association relationship between the antenna port and the random access transmission opportunity set by indicating the identifier of the antenna port and the identifier of the random access transmission opportunity set.
  • the fourth association relationship may include: antenna port 0 is associated with random access transmission opportunity set 0, antenna port 1 is associated with random access transmission opportunity set 1, etc.
  • one antenna port may be associated with one random access transmission opportunity set, that is, there may be a one-to-one correspondence between the antenna port and the random access transmission opportunity set.
  • antenna port 0 is associated with random access transmission opportunity set
  • antenna port 1 is associated with random access transmission opportunity set 1.
  • one antenna port in the fourth association relationship, can be associated with multiple random access transmission opportunity sets, that is, there can be a one-to-many correspondence between the antenna port and the random access transmission opportunity set.
  • antenna port 0 is associated with both random access transmission opportunity set 0 and random access transmission opportunity set 1.
  • multiple antenna ports can be associated with one random access transmission opportunity set, that is, there can be a many-to-one correspondence between antenna ports and random access transmission opportunity sets.
  • antenna port 0 and antenna port 1 are both associated with random access transmission opportunity set 0.
  • the fourth association relationship may indicate the association relationship between the synchronization signal and the random access transmission opportunity set by indicating the index of the synchronization signal and the identifier of the random access transmission opportunity set.
  • the fourth association relationship may include: SSB 0 is associated with random access transmission opportunity set 0, SSB 1 is associated with random access transmission opportunity set 1, etc.
  • a synchronization signal in the fourth association relationship, can be associated with a random access transmission opportunity set, that is, there can be a one-to-one correspondence between the synchronization signal and the random access transmission opportunity set.
  • SSB 0 is associated with random access transmission opportunity set
  • SSB 1 is associated with random access transmission opportunity set 1.
  • one synchronization signal may be associated with multiple random access transmission opportunity sets, that is, there may be a one-to-many correspondence between the synchronization signal and the random access transmission opportunity set.
  • SSB 0 is associated with both random access transmission opportunity set 0 and random access transmission opportunity set 1.
  • multiple synchronization signals can be associated with one random access transmission opportunity set, that is, there can be a many-to-one correspondence between the synchronization signal and the random access transmission opportunity set.
  • SSB 0 and SSB 1 are both associated with random access transmission opportunity set 0.
  • the fourth association relationship may include one or more of the following: a correspondence between an antenna port and a random access transmission opportunity set; a correspondence between an antenna port and multiple random access transmission opportunity sets; a correspondence between multiple antenna ports and a random access transmission opportunity set; a one-to-one correspondence between multiple antenna ports and multiple random access transmission opportunity sets; a correspondence between an antenna port identifier and a random access transmission opportunity set identifier; a correspondence between an antenna port identifier and multiple random access transmission opportunity set identifiers; a correspondence between multiple antenna port identifiers and a random access transmission opportunity set identifier; a correspondence between multiple antenna port identifiers and multiple random access transmission opportunity sets; A one-to-one correspondence between a set identifier; a correspondence between a synchronization signal and a random access transmission opportunity set; a correspondence between a synchronization signal and multiple random access transmission opportunity sets; a correspondence between multiple synchronization signals and a random access transmission opportunity set; a one-to-one correspondence between multiple synchronization signals
  • the fourth association relationship may be predefined or preconfigured.
  • the fourth association relationship may be predefined by a protocol.
  • the fourth association relationship may be configured by the network device through high-layer signaling.
  • the terminal device may send a random access signal through at least one random access transmission opportunity in the second random access transmission opportunity set, and the at least one random access transmission opportunity is determined according to the fourth association relationship.
  • the terminal device may determine at least one random access transmission opportunity in the second random access transmission opportunity set according to the fourth association relationship, and send a random access signal through the at least one random access transmission opportunity.
  • the terminal device may send a random access signal to the second antenna port.
  • the second antenna port may be used to detect a second random access transmission opportunity set associated with the second antenna port.
  • the second antenna port may be used to monitor whether there is a random access signal on a resource in the second random access transmission opportunity set associated with the second antenna port; and/or, the second antenna port may Used to receive a random access signal transmitted on a resource in a second random access transmission opportunity set associated with the second antenna port.
  • the second antenna port may be used to detect a second random access transmission opportunity set associated with the second antenna port, and the second antenna port does not detect a random access transmission opportunity set that is not associated with the second antenna port.
  • the terminal device sending a random access signal to the second antenna port may mean that a transmitting spatial filter of the terminal device sending the random access signal partially overlaps or completely overlaps with a receiving spatial filter of the second antenna port.
  • the terminal device sending the random access signal to the second antenna port may mean that a resource through which the terminal device sends the random access signal is associated with the second antenna port.
  • the terminal device sending the random access signal to the second antenna port may mean that a transmission beam direction used by the terminal device to send the random access signal is associated with a reception beam direction of the second antenna port.
  • the terminal device may send a random access signal through at least one random access transmission opportunity in the second random access transmission opportunity set, which may include the terminal device sending a random access signal to the second antenna port through at least one random access transmission opportunity in the second random access transmission opportunity set.
  • the terminal device may also detect a random access response, where the random access response is a response to the random access signal sent by the terminal device.
  • the present application does not specifically limit the antenna port for sending the random access response.
  • the random access response is sent through the second antenna port.
  • the second antenna port may be used to transmit second indication information, and the second indication information may be used to determine the second antenna port and/or the transmitted synchronization signal.
  • the second indication information is described in detail below.
  • the second indication information can be used to determine at least one of the following information: an identifier of the second antenna port; an index of a synchronization signal transmitted in the communication network in which the second antenna port is located; an index of a synchronization signal associated with the second antenna port; an index of a synchronization signal that the second antenna port needs to perform rate matching for when performing data transmission; a type of quasi-co-location relationship associated with the second antenna port; and an association relationship between the second antenna port and a second random access transmission opportunity set.
  • the second indication information used to determine the transmitted synchronization signal may include the second indication information being used to indicate the synchronization signal associated with the second antenna port to determine the synchronization signal transmitted by the second antenna port.
  • the second antenna port may send the second indication information, and the second indication information indicates that the transmitted synchronization signal is SSB 0 by indicating that the synchronization signal associated with the second antenna port is SSB 0.
  • the second indication information used to determine the transmitted synchronization signal may include the second indication information being used to indicate the synchronization signal transmitted in the communication network in which the second antenna port is located.
  • the communication network in which the second antenna port is located includes a first antenna port and a second antenna port, the first antenna port is associated with SSB 0, and the second antenna port is associated with SSB 1, and the second antenna port may send the second indication information, and the second indication information indicates that the transmitted synchronization signals are SSB 0 and SSB 1.
  • the second antenna port may perform rate matching on resources used for synchronization signal transmission when scheduling data transmission.
  • the second antenna port may perform rate matching on the resources for synchronization signal transmission associated with the second antenna port.
  • the second antenna port is associated with SSB 0, and the second antenna port schedules the first time-frequency resource for data transmission, and the SSB 0 transmission occupies the second time-frequency resource. If the first time-frequency resource and the second time-frequency resource at least partially overlap in the time domain and/or frequency domain, the overlapping portion is not used for data transmission.
  • the second antenna port may rate match the resources of the synchronization signal transmitted in the communication network where the second antenna port is located.
  • the SSB transmitted in the communication network where the second antenna port is located includes SSB 0 and SSB 1, and the second antenna port schedules the first time-frequency resource for data transmission, and the transmission of SSB 0 and SSB 1 occupies the third time-frequency resource. If the first time-frequency resource and the third time-frequency resource at least partially overlap in the time domain and/or frequency domain, the overlapping portion is not used for data transmission.
  • the terminal device may send (report) the selected synchronization signal and/or antenna port to the network device.
  • the terminal device may send (report) the detected synchronization signal and/or antenna port to the network device.
  • the terminal device may send third indication information to the network device, where the third indication information is used to determine the M antenna ports selected by the terminal device and/or the N synchronization signals selected by the terminal device, where N and M are positive integers.
  • the third indication information is used to determine the M antenna ports selected by the terminal device, including: the third indication information is used to indicate the identifiers of the M antenna ports selected by the terminal device; wherein the M value is predefined or preconfigured, or the M value is determined based on a third threshold value, and the third threshold value is predefined or preconfigured.
  • the M antenna ports selected by the terminal device may be M antenna ports with signal strengths ranging from strong to weak, that is, the M antenna ports selected by the terminal device may be the M antenna ports with the strongest signal strengths among the multiple antenna ports associated with the terminal device.
  • the M antenna ports selected by the terminal device may be M antenna ports that are greater than or equal to a third threshold value. That is, the number of M is determined according to the third threshold value.
  • the third threshold value may be a value used to indicate signal strength.
  • the threshold value may be a value indicating a signal strength greater than -50dBm, etc.
  • the indication bit may be a preset value or a fill value.
  • the third indication information is used to determine the N synchronization signals selected by the terminal device, including: the third indication information is used to indicate the index of the N synchronization signals selected by the terminal device; wherein the N value is predefined or preconfigured, or the N value is determined based on a fourth threshold value, and the fourth threshold value is predefined or preconfigured.
  • the N synchronization signals selected by the terminal device may be N synchronization signals whose received signal strengths are from strong to weak, that is, the N synchronization signals selected by the terminal device may be the N synchronization signals with the strongest signal strengths detected by the terminal device.
  • the N synchronization signals selected by the terminal device may be N synchronization signals greater than or equal to a fourth threshold value. That is, the number of N is determined according to the fourth threshold value.
  • the fourth threshold value may be a value used to indicate the received signal strength.
  • the threshold value may be a received signal strength greater than -50 dBm.
  • the indication bit may be a preset value or a fill value.
  • the embodiment of the present application does not specifically limit the carrying method of the third indication information.
  • the third indication information can be carried in one or more of the following transmissions: a random access signal, an uplink transmission scheduled by a random access response, and an uplink transmission after the random access process is completed.
  • the third indication information may be carried in the preamble.
  • the third indication information may be carried in Msg 3.
  • the third indication information may be carried in Msg 5 after the random access process is completed.
  • the third indication information may be carried in the uplink scheduling after the random access process is completed.
  • the third indication information may be carried in the uplink information in the two-step random access process, etc.
  • the following takes the synchronization signal as the SSB in the NR system and the random access transmission opportunity set as the RO set in the NR system as an example, and describes the initial access process in Example 2 in combination with the network system architecture shown in Figure 10.
  • the communication network includes 14 APs, which transmit SSB 0 to SSB 13 respectively, wherein each AP transmits only the SSB associated with the AP, for example, the first AP transmits only SSB 0, the second AP transmits only SSB 1, and so on.
  • the positions of SSB 0 to SSB 13 in the radio frame are the same as the positions of SSB 0 to SSB 13 in the radio frame in the NR system.
  • the identification of the AP is determined according to the SSB index, for example, the identification of the first AP associated with SSB 0 is 0, and the identification of the second AP associated with SSB 1 is 1.
  • the first AP is associated with a first RO set
  • the second AP is associated with a second RO set, and so on.
  • the terminal device attempts to search for SSBs through the predefined possible time-frequency positions of SSBs.
  • the terminal device may detect SSB 6, SSB 7, SSB 11, and SSB 12, and obtain time and frequency synchronization, wireless frame timing, and determine the identity of the corresponding AP (i.e., AP 6, AP 7, AP 11, and AP 12) through at least one of the detected SSBs; accordingly, the terminal device can initiate random access to the network device through an RO in at least one RO set associated with these APs.
  • the terminal device can select the twelfth RO set associated with AP 12 based on signal strength to initiate random access to the network device; or, the terminal device can select multiple RO sets associated with multiple APs based on a signal strength threshold to initiate random access to the network device respectively, for example, the terminal device can select the twelfth RO set and the seventh RO set associated with AP 12 and AP 7 based on a signal strength threshold to initiate random access to the network device respectively.
  • a terminal device selects the twelfth RO set associated with AP 12 to initiate random access to a network device.
  • the terminal device initiates random access including sending a random access preamble sequence.
  • the network device schedules the AP 12 to send the RAR corresponding to the random access preamble sequence to the terminal device; after receiving the RAR, the terminal device sends message 3 to the main AP; after receiving message 3, the network device schedules the AP 12 to send message 4 to the terminal device, thereby completing random access.
  • the terminal device reports the identifier of the AP that can be used for communication with the terminal device to the network device through at least one of the following information: random access preamble sequence, message 3, message 5 after the random access process is completed, and uplink scheduling after the random access process is completed.
  • the terminal device initiates random access including sending a random access preamble sequence and uplink information.
  • the network device schedules the AP 12 to send the RAR corresponding to the successful random access to the terminal device, thereby completing the random access.
  • the network device schedules the AP 12 to send the RAR corresponding to the random access preamble sequence to the terminal device and fall back to the four-step random access process.
  • the terminal device reports to the network device the identifier of the AP that can be used for communication with the terminal device through at least one of the following information: random access preamble sequence, uplink information, message 3, message 5 after the random access process is completed, and uplink scheduling after the random access process is completed.
  • the terminal device may report AP 6, AP 7, AP 11 and AP 12; or, the terminal device may report the best M APs according to the signal strength, where M is a positive integer and M is predefined or configured by the network device.
  • FIG13 is a schematic diagram of the structure of a terminal device provided in an embodiment of the present application.
  • the terminal device 1300 shown in FIG13 may include a first detection module 1310 and a first determination module 1320 .
  • the first detection module 1310 may be configured to detect a synchronization signal sent by a network device.
  • the first determination module 1320 may be configured to determine, after the terminal device detects a first synchronization signal, at least one antenna port associated with the first synchronization signal according to the first synchronization signal.
  • the at least one antenna port is an antenna port in a first antenna port set, and the first synchronization signal is associated with the first antenna port set.
  • the first synchronization signal is sent according to a first association relationship
  • the first determination module is further used to: determine the first antenna port set according to the first synchronization signal and the first association relationship.
  • the first association relationship includes at least one of the following: a correspondence between a synchronization signal and an antenna port set; a correspondence between a synchronization signal and multiple antenna port sets; a correspondence between multiple synchronization signals and an antenna port set; a one-to-one correspondence between multiple synchronization signals and multiple antenna port sets; a correspondence between a synchronization signal index and an antenna port set identifier; a correspondence between a synchronization signal index and multiple antenna port set identifiers; a correspondence between multiple synchronization signal indexes and an antenna port set identifier; a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port set identifiers.
  • the first determination module is further used to: determine an identifier of the first antenna port set according to the first synchronization signal; or determine an identifier of at least one antenna port in the first antenna port set according to the first synchronization signal.
  • the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set is determined based on one or more of the following information: an index of the first synchronization signal; a synchronization signal sequence corresponding to the first synchronization signal; and information transmitted in a downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent through some antenna ports in the first antenna port set; or, the first synchronization signal is sent through all antenna ports in the first antenna port set; or, the first antenna port set includes a main antenna port, and the first synchronization signal is sent through the main antenna port.
  • some antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set; or, all antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set; or, the first antenna port set includes a main antenna port, and the main antenna port does not send a synchronization signal that is not associated with the first antenna port set; or, the first antenna port set includes an auxiliary antenna port, and the auxiliary antenna port does not send a synchronization signal that is not associated with the first antenna port set.
  • the terminal device also includes: a second determination module, used to determine at least one random access transmission opportunity in the first random access transmission opportunity set based on the second association relationship; a first sending module, used to send a random access signal through the at least one random access transmission opportunity.
  • the first synchronization signal includes a synchronization signal with the strongest received signal strength detected by the terminal device or a synchronization signal with a received signal strength exceeding a first threshold.
  • the second association relationship is predefined or preconfigured.
  • the terminal device sends a random access signal through the at least one random access transmission opportunity, including at least one of the following situations: the terminal device sends a random access signal to the antenna port that sends the first synchronization signal in the first antenna port set; or, the terminal device sends a random access signal to some antenna ports in the first antenna port set; or, the terminal device sends a random access signal to all antenna ports in the first antenna port set; or, the terminal device sends a random access signal to the main antenna port in the first antenna port set; or, the terminal device sends a random access signal to the secondary antenna port in the first antenna port set.
  • the terminal device also includes a second detection module, which is used to: detect a random access response sent through at least one antenna port in the first antenna port set; or, the first antenna port set includes a main antenna port, and detect a random access response sent through the main antenna port; wherein the random access response is a response to a random access signal sent by the terminal device.
  • a second detection module which is used to: detect a random access response sent through at least one antenna port in the first antenna port set; or, the first antenna port set includes a main antenna port, and detect a random access response sent through the main antenna port; wherein the random access response is a response to a random access signal sent by the terminal device.
  • At least one antenna port in the first antenna port set is used to transmit first indication information, and the first indication information is used to determine at least one of the following information: an identifier of the first antenna port set; an identifier of the antenna ports included in the first antenna port set; an identifier of a primary antenna port in the first antenna port set; an identifier of a secondary antenna port in the first antenna port set; an identifier of an antenna port in the first antenna port set that sends the first synchronization signal; an identifier of an antenna port in the first antenna port set that detects a random access signal; an identifier of an antenna port in the first antenna port set that sends a random access response;
  • the first indication information is transmitted through the antenna port that sends the first synchronization signal in the first antenna port set; or the first indication information is transmitted through the antenna port that detects the random access signal in the first antenna port set; or the first indication information is transmitted through all antenna ports in the first antenna port set.
  • the first antenna port set includes two or more antenna ports
  • at least two antenna ports in the first antenna port set are distributed antenna ports, or any two antenna ports in the first antenna port set are distributed antenna ports.
  • the at least one antenna port includes a second antenna port, and the first synchronization signal is associated with the second antenna port.
  • the first synchronization signal is sent according to a third association relationship
  • the first determination module is further used to: determine the second antenna port according to the first synchronization signal and the third association relationship.
  • the third association relationship includes at least one of the following: a correspondence between a synchronization signal and an antenna port; a correspondence between a synchronization signal and multiple antenna ports; a correspondence between multiple synchronization signals and one antenna port; a one-to-one correspondence between multiple synchronization signals and multiple antenna ports; a correspondence between a synchronization signal index and an antenna port identifier; a correspondence between a synchronization signal index and multiple antenna port identifiers; a correspondence between multiple synchronization signal indexes and one antenna port identifier; a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port identifiers.
  • the first determination module is further used to: determine an identifier of the second antenna port according to the first synchronization signal.
  • the identifier of the second antenna port is determined based on one or more of the following information: an index of the first synchronization signal; a synchronization signal sequence corresponding to the first synchronization signal; and information transmitted in a downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent through the second antenna port; and/or the second antenna port does not send a synchronization signal that is not associated with the second antenna port.
  • the terminal device also includes: a third determination module, used to determine at least one random access transmission opportunity in the second random access transmission opportunity set according to the fourth association relationship, and send a random access signal through the at least one random access transmission opportunity; and/or, a third detection module, used to detect a random access response sent through the second antenna port; wherein the random access response is a response to the random access signal sent by the terminal device.
  • the terminal device sends a random access signal through the at least one random access transmission opportunity, including: the terminal device sends a random access signal to the second antenna port through the at least one random access transmission opportunity.
  • the first synchronization signal includes a synchronization signal with the strongest received signal strength detected by the terminal device or a synchronization signal with a received signal strength exceeding a second threshold.
  • the fourth association relationship is predefined or preconfigured.
  • the second antenna port is used to transmit second indication information
  • the second indication information is used to determine at least one of the following information: an identifier of the second antenna port; an index of a synchronization signal transmitted in the communication network in which the second antenna port is located; an index of a synchronization signal associated with the second antenna port; an index of a synchronization signal that the second antenna port needs to rate match when performing data transmission; a type of quasi-co-site relationship associated with the second antenna port; and an association relationship between the second antenna port and a second random access transmission opportunity set.
  • the terminal device also includes: a second sending module, used to send third indication information to the network device, and the third indication information is used to determine the M antenna ports selected by the terminal device and/or the N synchronization signals selected by the terminal device, where N and M are positive integers.
  • a second sending module used to send third indication information to the network device, and the third indication information is used to determine the M antenna ports selected by the terminal device and/or the N synchronization signals selected by the terminal device, where N and M are positive integers.
  • the third indication information is used to determine the M antenna ports selected by the terminal device, including: the third indication information is used to indicate the identifiers of the M antenna ports selected by the terminal device; wherein the M value is predefined or preconfigured, or the M value is determined based on a third threshold value, and the third threshold value is predefined or preconfigured.
  • the third indication information is used to determine the N synchronization signals selected by the terminal device, including: the third indication information is used to indicate the index of the N synchronization signals selected by the terminal device; wherein the N value is predefined or preconfigured, or the N value is determined based on a fourth threshold value, and the fourth threshold value is predefined or preconfigured.
  • the third indication information is carried in one or more of the following transmissions: a random access signal, an uplink transmission scheduled by a random access response, and an uplink transmission after a random access process is completed.
  • the first antenna port set associated with the first synchronization signal is determined according to predefined or preconfigured information; or, the second antenna port associated with the first synchronization signal is determined according to predefined or preconfigured information.
  • FIG14 is a schematic diagram of the structure of a network device provided in an embodiment of the present application.
  • the network device 1400 shown in FIG14 may include a first sending module 1410 .
  • the first sending module 1410 may be configured to send a synchronization signal; wherein the synchronization signal includes a first synchronization signal, and the first synchronization signal is used to determine at least one antenna port associated with the first synchronization signal.
  • the at least one antenna port is an antenna port in a first antenna port set, and the first synchronization signal is associated with the first antenna port set.
  • the first synchronization signal is sent according to a first association relationship, and the first synchronization signal and the first association relationship are used to determine the first antenna port set.
  • the first association relationship includes at least one of the following: a correspondence between a synchronization signal and an antenna port set; a correspondence between a synchronization signal and multiple antenna port sets; a correspondence between multiple synchronization signals and an antenna port set; a one-to-one correspondence between multiple synchronization signals and multiple antenna port sets; a correspondence between a synchronization signal index and an antenna port set identifier; a correspondence between a synchronization signal index and multiple antenna port set identifiers; a correspondence between multiple synchronization signal indexes and an antenna port set identifier; a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port set identifiers.
  • the first synchronization signal is used to determine an identifier of the first antenna port set; or, the first synchronization signal is used to determine an identifier of at least one antenna port in the first antenna port set.
  • the identifier of the first antenna port set or the identifier of at least one antenna port in the first antenna port set is determined based on one or more of the following information: an index of the first synchronization signal; a synchronization signal sequence corresponding to the first synchronization signal; and information transmitted in a downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent through some antenna ports in the first antenna port set; or, the first synchronization signal is sent through all antenna ports in the first antenna port set; or, the first antenna port set includes a main antenna port, and the first synchronization signal is sent through the main antenna port.
  • some antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set; or, all antenna ports in the first antenna port set do not send synchronization signals that are not associated with the first antenna port set; or, the first antenna port set includes a main antenna port, and the main antenna port does not send a synchronization signal that is not associated with the first antenna port set; or, the first antenna port set includes an auxiliary antenna port, and the auxiliary antenna port does not send a synchronization signal that is not associated with the first antenna port set.
  • the network device also includes: a first receiving module 1420, used to receive a random access signal through at least one random access transmission opportunity in the first random transmission opportunity set; wherein, the at least one random access transmission opportunity is determined based on the second association relationship.
  • the first synchronization signal includes a synchronization signal with the strongest received signal strength detected by the terminal device or a synchronization signal with a received signal strength exceeding a first threshold.
  • the second association relationship is predefined or preconfigured.
  • the network device receives a random access signal through at least one random access transmission opportunity in the first random transmission opportunity set, including at least one of the following situations: the network device receives the random access signal through the antenna port that sends the first synchronization signal in the first antenna port set; or, the network device receives the random access signal through some antenna ports in the first antenna port set; or, the network device receives the random access signal through all antenna ports in the first antenna port set; or, the network device receives the random access signal through the main antenna port in the first antenna port set; or, the network device receives the random access signal through the auxiliary antenna port in the first antenna port set.
  • the network device also includes a second sending module, which is used to: send a random access response through at least one antenna port in the first antenna port set; or, the first antenna port set includes a main antenna port, and sends a random access response through the main antenna port; wherein the random access response is a response to a random access signal sent by the terminal device.
  • a second sending module which is used to: send a random access response through at least one antenna port in the first antenna port set; or, the first antenna port set includes a main antenna port, and sends a random access response through the main antenna port; wherein the random access response is a response to a random access signal sent by the terminal device.
  • At least one antenna port in the first antenna port set is used to transmit first indication information, and the first indication information is used to determine at least one of the following information: an identifier of the first antenna port set; an identifier of the antenna ports included in the first antenna port set; an identifier of the primary antenna port in the first antenna port set; an identifier of the secondary antenna port in the first antenna port set; an identifier of the antenna port in the first antenna port set that sends the first synchronization signal; an identifier of the antenna port in the first antenna port set that detects a random access signal; an identifier of the antenna port in the first antenna port set that sends a random access response; an index of a synchronization signal transmitted in the communication network in which the first antenna port set is located; an index of a synchronization signal associated with the first antenna port set; an index of a synchronization signal for which rate matching is required for antenna ports in the first antenna port set when performing data transmission; a type of quasi-co-location relationship associated with the first antenna port set
  • the first indication information is transmitted by an antenna port in the first antenna port set that sends the first synchronization signal. or the first indication information is transmitted through the antenna port for detecting the random access signal in the first antenna port set; or the first indication information is transmitted through all antenna ports in the first antenna port set.
  • the first antenna port set includes two or more antenna ports
  • at least two antenna ports in the first antenna port set are distributed antenna ports, or any two antenna ports in the first antenna port set are distributed antenna ports.
  • the at least one antenna port includes a second antenna port, and the first synchronization signal is associated with the second antenna port.
  • the first synchronization signal is sent according to a third association relationship, and the first synchronization signal and the third association relationship are used to determine the second antenna port.
  • the third association relationship includes at least one of the following: a correspondence between a synchronization signal and an antenna port; a correspondence between a synchronization signal and multiple antenna ports; a correspondence between multiple synchronization signals and one antenna port; a one-to-one correspondence between multiple synchronization signals and multiple antenna ports; a correspondence between a synchronization signal index and an antenna port identifier; a correspondence between a synchronization signal index and multiple antenna port identifiers; a correspondence between multiple synchronization signal indexes and one antenna port identifier; a one-to-one correspondence between multiple synchronization signal indexes and multiple antenna port identifiers.
  • the first synchronization signal is used to determine an identifier of the second antenna port.
  • the identifier of the second antenna port is determined based on one or more of the following information: an index of the first synchronization signal; a synchronization signal sequence corresponding to the first synchronization signal; and information transmitted in a downlink channel associated with the first synchronization signal.
  • the first synchronization signal is sent through the second antenna port; and/or the second antenna port does not send a synchronization signal that is not associated with the second antenna port.
  • the network device also includes: a second receiving module for receiving a random access signal; and/or a third sending module for sending a random access response through the second antenna port; wherein the random access signal is sent through at least one random access transmission opportunity in the second random access transmission opportunity set, the at least one random access transmission opportunity is determined based on the fourth association relationship, and the random access response is a response to the random access signal sent by the terminal device.
  • the random access signal is sent to the second antenna port through the at least one random access transmission opportunity.
  • the first synchronization signal includes a synchronization signal with the strongest received signal strength detected by the terminal device or a synchronization signal with a received signal strength exceeding a second threshold.
  • the fourth association relationship is predefined or preconfigured.
  • the second antenna port is used to transmit second indication information
  • the second indication information is used to determine at least one of the following information: an identifier of the second antenna port; an index of a synchronization signal transmitted in the communication network in which the second antenna port is located; an index of a synchronization signal associated with the second antenna port; an index of a synchronization signal that the second antenna port needs to rate match when performing data transmission; a type of quasi-co-site relationship associated with the second antenna port; and an association relationship between the second antenna port and a second random access transmission opportunity set.
  • the network device also includes: a third receiving module, used to receive third indication information sent by the terminal device, and the third indication information is used to determine the M antenna ports selected by the terminal device and/or the N synchronization signals selected by the terminal device, where N and M are positive integers.
  • a third receiving module used to receive third indication information sent by the terminal device, and the third indication information is used to determine the M antenna ports selected by the terminal device and/or the N synchronization signals selected by the terminal device, where N and M are positive integers.
  • the third indication information is used to determine the M antenna ports selected by the terminal device, including: the third indication information is used to indicate the identifiers of the M antenna ports selected by the terminal device; wherein the M value is predefined or preconfigured, or the M value is determined based on a third threshold value, and the third threshold value is predefined or preconfigured.
  • the third indication information is used to determine the N synchronization signals selected by the terminal device, including: the third indication information is used to indicate the index of the N synchronization signals selected by the terminal device; wherein the N value is predefined or preconfigured, or the N value is determined based on a fourth threshold value, and the fourth threshold value is predefined or preconfigured.
  • the third indication information is carried in one or more of the following transmissions: a random access signal, an uplink transmission scheduled by a random access response, and an uplink transmission after a random access process is completed.
  • the first antenna port set associated with the first synchronization signal is determined according to predefined or preconfigured information; or, the second antenna port associated with the first synchronization signal is determined according to predefined or preconfigured information.
  • FIG15 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the dotted lines in FIG15 indicate that the unit or module is optional.
  • the device 1500 may be used to implement the method described in the above method embodiment.
  • the device 1500 may be a chip, a terminal device, or a network device.
  • the device 1500 may include one or more processors 1510.
  • the processor 1510 may support the device 1500 to implement the method described in the above method embodiment.
  • the processor 1510 may be a general-purpose processor or a special-purpose processor.
  • the processor may be a central processing unit (CPU).
  • the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), off-the-shelf programmable gate arrays, or other processors.
  • Array field programmable gate array, FPGA
  • the general processor can be a microprocessor or the processor can also be any conventional processor, etc.
  • the apparatus 1500 may further include one or more memories 1520.
  • the memory 1520 stores a program, which can be executed by the processor 1510, so that the processor 1510 executes the method described in the above method embodiment.
  • the memory 1520 may be independent of the processor 1510 or integrated in the processor 1510.
  • the apparatus 1500 may further include a transceiver 1530.
  • the processor 1510 may communicate with other devices or chips through the transceiver 1530.
  • the processor 1510 may transmit and receive data with other devices or chips through the transceiver 1530.
  • the present application also provides a computer-readable storage medium for storing a program.
  • the computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.
  • the embodiment of the present application also provides a computer program product.
  • the computer program product includes a program.
  • the computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal or network device in each embodiment of the present application.
  • the embodiment of the present application also provides a computer program.
  • the computer program can be applied to the terminal or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal or network device in each embodiment of the present application.
  • the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship.
  • a indicates B which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.
  • B corresponding to A means that B is associated with A, and B can be determined according to A.
  • determining B according to A does not mean determining B only according to A, and B can also be determined according to A and/or other information.
  • the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.
  • the term “include” may refer to direct inclusion or indirect inclusion.
  • the term “include” in the embodiments of the present application may be replaced with “indicates” or “is used to determine”.
  • “A includes B” may be replaced with “A indicates B” or "A is used to determine B”.
  • pre-definition or “pre-configuration” can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method.
  • pre-definition can refer to what is defined in the protocol.
  • the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.
  • the term "and/or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships.
  • a and/or B can represent: A exists alone, A and B exist at the same time, and B exists alone.
  • the character "/" in this article generally indicates that the associated objects before and after are in an "or" relationship.
  • the size of the serial numbers of the above-mentioned processes does not mean the order of execution.
  • the execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.
  • the disclosed systems, devices and methods can be implemented in other ways.
  • the device embodiments described above are only schematic.
  • the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed.
  • Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.
  • the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
  • each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof.
  • all or part of the embodiments may be implemented in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device.
  • the computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.
  • the computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein.
  • the available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital versatile disk (DVD)) or a semiconductor medium (e.g., a solid state disk (SSD)), etc.
  • a magnetic medium e.g., a floppy disk, a hard disk, a magnetic tape
  • an optical medium e.g., a digital versatile disk (DVD)
  • DVD digital versatile disk
  • SSD solid state disk

Landscapes

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

Abstract

提供了一种无线通信的方法、终端设备和网络设备。该无线通信的方法包括：终端设备检测网络设备发送的同步信号；在终端设备检测到第一同步信号后，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口。

Description

无线通信的方法、终端设备和网络设备 技术领域
本申请涉及通信技术领域，并且更为具体地，涉及一种无线通信的方法、终端设备和网络设备。
背景技术
随着通信技术的发展，通信系统对无线网络覆盖水平提出了更高的要求。为此，某些通信系统考虑引入分布式天线系统，以便快速、灵活地构建满足用户需求的无线网络。然而，在分布式天线系统的场景下，终端设备和网络设备如何建立通信连接，目前并不清楚。
发明内容
本申请提供一种无线通信的方法、终端设备和网络设备。下面对本申请涉及的各个方面进行介绍。
第一方面，提供了一种无线通信的方法，包括：终端设备检测网络设备发送的同步信号；在所述终端设备检测到第一同步信号后，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口。
第二方面，提供了一种无线通信的方法，包括：网络设备发送同步信号；其中，所述同步信号包括第一同步信号，所述第一同步信号用于确定所述第一同步信号关联的至少一个天线端口。
第三方面，提供了一种终端设备，包括：第一检测模块，用于检测网络设备发送的同步信号；第一确定模块，用于在所述终端设备检测到第一同步信号后，根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口。
第四方面，提供了一种网络设备，包括：第一发送模块，用于发送同步信号；其中，所述同步信号包括第一同步信号，所述第一同步信号用于确定所述第一同步信号关联的至少一个天线端口。
第五方面，提供了一种终端设备，包括处理器、存储器以及通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述终端设备执行第一方面的方法中的部分或全部步骤。
第六方面，提供了一种网络设备，包括处理器、存储器以及通信接口，所述存储器用于存储一个或多个计算机程序，所述处理器用于调用所述存储器中的计算机程序使得所述网络设备执行第二方面的方法中的部分或全部步骤。
第七方面，本申请实施例提供了一种通信系统，该系统包括上述的终端设备和/或网络设备。在另一种可能的设计中，该系统还可以包括本申请实施例提供的方案中与该终端设备或网络设备进行交互的其他设备。
第八方面，本申请实施例提供了一种计算机可读存储介质，所述计算机可读存储介质存储有计算机程序，所述计算机程序使得计算机执行上述各个方面的方法中的部分或全部步骤。
第九方面，本申请实施例提供了一种计算机程序产品，其中，所述计算机程序产品包括存储了计算机程序的非瞬时性计算机可读存储介质，所述计算机程序可操作来使计算机执行上述各个方面的方法中的部分或全部步骤。在一些实现方式中，该计算机程序产品可以为一个软件安装包。
第十方面，本申请实施例提供了一种计算机程序，所述计算机程序可操作来使计算机执行上述各个方面的方法中的部分或全部步骤。
第十一方面，本申请实施例提供了一种芯片，该芯片包括存储器和处理器，处理器可以从存储器中调用并运行计算机程序，以实现上述各个方面的方法中所描述的部分或全部步骤。
本申请实施例中，终端设备能够根据检测到的第一同步信号确定第一同步信号关联的天线端口，有利于终端设备后续在第一同步信号关联的天线端口上与网络设备建立连接，从而有利于提升数据传输的吞吐量，提升通信的可靠性和效率。
附图说明
图1A-图1C是可应用本申请实施例的无线通信系统的系统架构示例图。
图2A-图2C是可应用本申请实施例的无线通信系统的系统架构示例图。
图3是SSB与RO的映射关系的示例图。
图4是四步随机接入过程的流程示意图。
图5是两步随机接入过程的流程示意图。
图6是本申请一实施例提供的无线通信的方法的流程示意图。
图7是本申请另一实施例提供的无线通信的方法的流程示意图。
图8是本申请又一实施例提供的无线通信的方法的流程示意图。
图9是本申请一实施例提供的基于分布式天线系统布网的网络结构示意图。
图10是本申请另一实施例提供的基于分布式天线系统布网的网络结构示意图。
图11是本申请一实施例提供的同步信号传输的示意图。
图12是本申请另一实施例提供的同步信号传输的示意图。
图13是本申请实施例提供的终端设备的结构示意图。
图14是本申请实施例提供的网络设备的结构示意图。
图15是本申请实施例提供的通信装置的示意性结构图。
具体实施方式
通信系统架构
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，GSM)系统、码分多址(code division multiple access，CDMA)系统、宽带码分多址(wideband code division multiple access，WCDMA)系统、通用分组无线业务(general packet radio service，GPRS)、长期演进(long term evolution，LTE)系统、先进的长期演进(advanced long term evolution，LTE-A)系统、新无线(new radio，NR)系统、NR系统的演进系统、非授权频谱上的LTE(LTE-based access to unlicensed spectrum，LTE-U)系统、非授权频谱上的NR(NR-based access to unlicensed spectrum，NR-U)系统、非地面通信网络(non-terrestrial networks，NTN)系统、通用移动通信系统(universal mobile telecommunication system，UMTS)、无线局域网(wireless local area networks，WLAN)、无线保真(wireless fidelity，WiFi)、第五代通信(5th-generation，5G)系统或其他通信系统，例如未来的通信系统，如第六代通信(6th-generation，6G)系统，又如卫星通信系统等。
通常来说，传统的通信系统支持的连接数有限，也易于实现，然而，随着通信技术的发展，移动通信系统将不仅支持传统的通信，还将支持例如，设备到设备(device to device，D2D)通信，机器到机器(machine to machine，M2M)通信，机器类型通信(machine type communication，MTC)，车辆间(vehicle to vehicle，V2V)通信，或车联网(vehicle to everything，V2X)通信等，本申请实施例也可以应用于这些通信系统。
本申请实施例中的通信系统可以应用于载波聚合(carrier aggregation，CA)场景，也可以应用于双连接(dual connectivity，DC)场景，还可以应用于独立(standalone，SA)布网场景。
本申请实施例中的通信系统可以应用于非授权频谱，其中，非授权频谱也可以认为是共享频谱；或者，本申请实施例中的通信系统也可以应用于授权频谱，其中，授权频谱也可以认为是专用频谱。
本申请实施例可应用于NTN系统，也可应用于地面通信网络(terrestrial networks，TN)系统。作为示例而非限定，NTN系统包括基于NR的NTN系统和基于IoT的NTN系统。
本申请实施例结合网络设备和终端设备描述了各个实施例，其中，终端设备也可以称为用户设备(user equipment，UE)、接入终端、用户单元、用户站、移动站、移动台(mobile station，MS)、移动终端(mobile Terminal，MT)、远方站、远程终端、移动设备、用户终端、终端、无线通信设备、用户代理或用户装置等。
在本申请实施例中，终端设备可以是WLAN中的站点(STATION，ST)，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)设备、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、下一代通信系统例如NR网络中的终端设备，或者未来演进的公共陆地移动网络(public land mobile network，PLMN)网络中的终端设备等。
在本申请实施例中，终端设备可以是指向用户提供语音和/或数据连通性的设备，可以用于连接人、物和机，例如具有无线连接功能的手持式设备、车载设备等。本申请的实施例中的终端设备可以是手机(mobile phone)、平板电脑(Pad)、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self driving)中的无线终端、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。可选地，UE可以用于充当基站。例如，UE可以充当调度实体，其在V2X或D2D等中的UE之间提供侧行链路信号。比如，蜂窝电话和汽车利用侧行链路信号彼此通信。蜂窝电话和智能家居设备之间通信，而无需通过基站中继通信信号。
在本申请实施例中，终端设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。
作为示例而非限定，在本申请实施例中，该终端设备还可以是可穿戴设备。可穿戴设备也可以称为穿戴式智能设备，是应用穿戴式技术对日常穿戴进行智能化设计、开发出可以穿戴的设备的总称，如眼镜、手套、手表、服饰及鞋等。可穿戴设备即直接穿在身上，或是整合到用户的衣服或配件的一种便携式设备。可穿戴设备不仅仅是一种硬件设备，更是通过软件支持以及数据交互、云端交互来实现强大的功能。广义穿戴式智能设备包括功能全、尺寸大、可不依赖智能手机实现完整或者部分的功能，例如：智能手表或智能眼镜等，以及只专注于某一类应用功能，需要和其它设备如智能手机配合使用，如各类进行体征监测的智能手环、智能首饰等。
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，该网络设备也可以称为接入网设备或无线接入网设备，如网络设备可以是基站。本申请实施例中的网络设备可以是指将终端设备接入到无线网络的无线接入网(radio access network，RAN)节点(或设备)。基站可以广义的覆盖如下中的各种名称，或与如下名称进行替换，比如：节点B(NodeB)、演进型基站(evolved NodeB，eNB)、下一代基站(next generation NodeB，gNB)、中继站、接入点、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、主站MeNB、辅站SeNB、多制式无线(MSR)节点、家庭基站、网络控制器、接入节点、无线节点、接入点(access piont，AP)、传输节点、收发节点、基带单元(base band unit，BBU)、射频拉远单元(remote radio unit，RRU)、有源天线单元(active antenna unit，AAU)、射频头(remote radio head，RRH)、中心单元(central unit，CU)、分布式单元(distributed unit，DU)、定位节点等。基站可以是宏基站、微基站、中继节点、施主节点或类似物，或其组合。基站还可以指用于设置于前述设备或装置内的通信模块、调制解调器或芯片。基站还可以是移动交换中心以及设备到设备D2D、车辆外联(vehicle-to-everything，V2X)、机器到机器(machine-to-machine，M2M)通信中承担基站功能的设备、6G网络中的网络侧设备、未来的通信系统中承担基站功能的设备等。基站可以支持相同或不同接入技术的网络。本申请的实施例对网络设备所采用的具体技术和具体设备形态不做限定。
基站可以是固定的，也可以是移动的。例如，直升机或无人机可以被配置成充当移动基站，一个或多个小区可以根据该移动基站的位置移动。在其他示例中，直升机或无人机可以被配置成用作与另一基站通信的设备。
在一些部署中，本申请实施例中的网络设备可以是指CU或者DU，或者，网络设备包括CU和DU。gNB还可以包括AAU。
网络设备和终端设备可以部署在陆地上，包括室内或室外、手持或车载；也可以部署在水面上；还可以部署在空中的飞机、气球和卫星上。本申请实施例中对网络设备和终端设备所处的场景不做限定。
作为示例而非限定，在本申请实施例中，网络设备可以具有移动特性，例如网络设备可以为移动的设备。在本申请一些实施例中，网络设备可以为卫星、气球站。例如，卫星可以为低地球轨道(low earth orbit，LEO)卫星、中地球轨道(medium earth orbit，MEO)卫星、地球同步轨道(geostationary earth orbit，GEO)卫星、高椭圆轨道(High Elliptical Orbit，HEO)卫星等。在本申请一些实施例中，网络设备还可以为设置在陆地、水域等位置的基站。
在本申请实施例中，网络设备可以为小区提供服务，终端设备通过该小区使用的传输资源(例如，频域资源，或者说，频谱资源)与网络设备进行通信，该小区可以是网络设备(例如基站)对应的小区，小区可以属于宏基站，也可以属于小小区(small cell)对应的基站，这里的小小区可以包括：城市小区(metro cell)、微小区(micro cell)、微微小区(pico cell)、毫微微小区(femto cell)等，这些小小区具有覆盖范围小、发射功率低的特点，适用于提供高速率的数据传输服务。
在一些实施例中，通信系统场景可以包括TN和NTN。其中，NTN一般采用卫星通信的方式向地面用户提供通信服务。NTN系统目前包括NR-NTN和IoT-NTN系统，后续还可能包括其他的NTN系统。为了便于理解，下面结合附图对TN和NTN场景下的通信场景分别进行介绍。
示例性的，图1A为本申请实施例提供的一种通信系统的架构示意图。如图1A所示，通信系统100可以包括网络设备110，网络设备110可以是与终端设备120(或称为通信终端设备、终端)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖，并且可以与位于该覆盖区域内的终端设备进行通信。
图1A示例性地示出了一个网络设备和两个终端设备，在本申请一些实施例中，该通信系统100可以包括多个网络设备并且每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
示例性的，图1B为本申请实施例提供的另一种通信系统的架构示意图。请参见图1B，包括终端设 备1101和卫星1102，终端设备1101和卫星1102之间可以进行无线通信。终端设备1101和卫星1102之间所形成的网络还可以称为NTN。在图1B所示的通信系统的架构中，卫星1102可以具有基站的功能，终端设备1101和卫星1102之间可以直接通信。在该系统架构下，可以将卫星1102称为网络设备。在本申请一些实施例中，通信系统中可以包括多个网络设备1102，并且每个网络设备1102的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
示例性的，图1C为本申请实施例提供的另一种通信系统的架构示意图。请参见图1C，包括终端设备1201、卫星1202和基站1203，终端设备1201和卫星1202之间可以进行无线通信，卫星1202与基站1203之间可以通信。终端设备1201、卫星1202和基站1203之间所形成的网络还可以称为NTN。在图1C所示的通信系统的架构中，卫星1202可以不具有基站的功能，终端设备1201和基站1203之间的通信需要通过卫星1202的中转。在这种系统架构下，可以将基站1203称为网络设备。在本申请一些实施例中，通信系统中可以包括多个网络设备1203，并且每个网络设备1203的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
需要说明的是，图1A-图1C只是以示例的形式示意本申请所适用的系统，当然，本申请实施例所示的方法还可以适用于其它系统，例如，5G通信系统、LTE通信系统等，本申请实施例对此不作具体限定。
在本申请一些实施例中，图1A-图1C所示的无线通信系统还可以包括移动性管理实体(mobility management entity，MME)、接入与移动性管理功能(access and mobility management function，AMF)等其他网络实体，本申请实施例对此不作限定。
应理解，本申请实施例中网络/系统中具有通信功能的设备可称为通信设备。以图1A示出的通信系统100为例，通信设备可包括具有通信功能的网络设备110和终端设备120，网络设备110和终端设备120可以为上文所述的具体设备，此处不再赘述；通信设备还可包括通信系统100中的其他设备，例如网络控制器、移动管理实体等其他网络实体，本申请实施例中对此不做限定。
随着通信技术的发展，通信系统架构也可能会产生变化。例如，在超5G(Beyond 5G，B5G)或6G等未来演进的通信系统中，可能会引入分布式多输入多输出(Distributed MIMO，也称为分布式天线系统)场景和/或大规模多输入多输出(Massive MIMO，也称为大规模天线矩阵系统)场景。在一些情况下，Distributed MIMO和/或Massive MIMO或也可以支持无小区(Cell-free)或以终端为中心(UE-centric)的布网场景。应理解，上述场景适用于TN和/或NTN。下面结合图2A-图2C对这些通信系统架构进行示例性介绍。
示例性的，图2A为本申请实施例提供的一种通信系统的架构示意图，该系统架构可以包括以下中的一种或多种：分布式天线端口(Distributed Antenna Port，Distributed AP，或分布式天线端口簇)，中央处理器(central processing unit，CPU)，切换(switch)模块。如图2A所示，通信系统可以包括多个分布式天线端口(或分布式天线端口簇)，不同的分布式天线端口(或分布式天线端口簇)通过切换模块与CPU连接。终端设备根据其所处的地位区域，选择合适的分布式天线端口(或分布式天线端口簇)为其服务。图2A示例性地示出了2个CPU，2个切换模块，10个分布式天线端口和1个终端设备，在本申请一些实施例中，该通信系统可以包括其它数量的CPU，和/或其他数量的切换模块，和/或其他数量的分布式天线端口(或分布式天线端口簇)，和/或其他数量的终端设备，本申请实施例对此不做限定。
示例性的，图2B为本申请实施例提供的另一种通信系统的架构示意图。请参见图2B，包括终端设备和卫星簇，终端设备和卫星簇之间可以进行无线通信。终端设备和卫星簇之间所形成的网络还可以称为NTN。在图2B所示的通信系统的架构中，卫星簇中的至少一个卫星(例如位于中心位置的卫星)可以具有基站的功能，终端设备和卫星簇之间可以直接通信。在系统架构下，可以将具有基站功能的卫星称为网络设备。在本申请一些实施例中，通信系统中可以包括多个卫星簇。在一些实施例中，每个卫星簇可以包括一个或多个网络设备。在一些实施例中，每个卫星簇或每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
示例性的，图2C为本申请实施例提供的另一种通信系统的架构示意图。请参见图2C，包括终端设备、卫星簇和基站，终端设备和卫星簇之间可以进行无线通信，卫星簇与基站之间可以通信。终端设备、卫星簇和基站之间所形成的网络还可以称为NTN。在图2C所示的通信系统的架构中，卫星簇可以不具有基站的功能，终端设备和基站之间的通信需要通过卫星簇的中转。在该种系统架构下，可以将基站称为网络设备。在本申请一些实施例中，通信系统中可以包括多个卫星簇。在一些实施例中，一个网络设备可以关联一个或多个卫星簇。在一些实施例中，该通信系统可以包括多个网络设备，和/或每个网络设备的覆盖范围内可以包括其它数量的终端设备，本申请实施例对此不做限定。
初始接入过程
为了实现与网络设备的上行同步，终端设备可以执行初始接入过程。下面以NR系统中的初始接入过程为例，对初始接入过程进行介绍。
NR系统中，终端设备的初始接入过程可以通过检测同步栅格(synchronization raster)上的同步信号块(synchronization signal/PBCH block，SSB或SS/PBCH block)来完成。
在一些实施例中，一个SSB在时域上可以包括4个符号。
在一些实施例中，一个SSB可以包括主同步信号(primary synchronization signal，PSS)、辅同步信号(secondary synchronization signal，SSS)和物理广播信道(physical broadcast channel，PBCH)。
示例性地，SSB可以通过发现信号传输机会窗口(discovery burst transmission window)或SSB传输机会窗口进行传输。发现信号传输机会窗口或SSB传输机会窗口是周期出现的，该周期可以是网络设备通过高层参数配置的。在一些实施例中，发现信号传输机会窗口或SSB传输机会窗口中可以包括一组用于SSB传输的候选位置。一组SSB传输机会(也称为一个SSB突发集合)中可以包括一个或多个SSB。一组SSB传输机会应在一个半帧(5ms)内完成传输。
应理解，基于一组SSB传输机会中传输的SSB确定的物理层小区标识(physical-layer cell identity)都相同。这是因为，物理层小区ID是基于SSB包括的PSS序列和SSS序列确定的，对于同一个SSB而言，其包括的PSS序列和SSS序列是相同的，因此基于同一SSB确定的物理层小区ID是相同的。
具体地，一个SSB包括的PSS包括3个序列，终端设备通过检测PSS来确定SSS包括336个序列，终端设备通过检测SSS来确定物理层小区ID基于公式(1)确定。
对于FR1频段，一组SSB传输机会中最多有8个SSB，最多需要3bit指示这8个SSB的索引。作为一种实现方式，这3bit可以通过PBCH的解调参考信号(demodulation reference signal，DMRS)序列隐式承载，共有8个不同的PBCH的DMRS序列，分别对应8个不同的SSB索引。
对于FR2频段，一组SSB传输机会中最多可配置64个SSB，需要用6bit指示这64个SSB的索引。作为一种实现方式，这6bit中的低3bit可以通过PBCH的DMRS序列承载，额外的高3bit可以通过PBCH的负载内容直接指示。
不同的SSB可以通过不同的SSB索引来指示。SSB索引的一项主要功能是让UE获取系统时序信息，除此之外，SSB索引还有另外一项功能，即用于指示SSB之间的准共址(quasi co-location，QCL)关系。QCL是指某个天线端口上的符号所经历的信道的大尺度参数可以从另一个天线端口上的符号所经历的信道推断出来。其中的大尺度参数可以包括时延扩展、平均时延、多普勒扩展、多普勒频移、平均增益以及空间接收参数等。在NR系统中，考虑到各种参考信号之间可能的QCL关系，上述几种信道大尺度参数可以分为不同的QCL类型，便于系统根据终端设备所在的不同场景进行配置。示例性地，NR系统中的QCL类型可以包括QCL类型A、QCL类型B、QCL类型C和QCL类型D共四种不同的QCL类型，不同QCL类型配置的定义如下：
'QCL-TypeA':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread),平均时延(average delay)，时延扩展(delay spread)}；
'QCL-TypeB':{多普勒频移(Doppler shift),多普勒扩展(Doppler spread)}；
'QCL-TypeC':{多普勒频移(Doppler shift),平均时延(average delay)}；
'QCL-TypeD':{空间接收参数(spatial Rx parameter)}。
具体到SSB来说，在5G NR系统中不同波束承载的SSB构成一个SSB突发(burst)集合，不同SSB索引对应了突发集合内不同SSB时域位置信息的同时，也对应了特定的SSB传输波束信息。具有相同SSB索引的SSB之间可认为具有QCL关系，对应类型为'QCL-TypeA'和'QCL-TypeD'；或者说，具有相同SSB索引的SSB之间经历相同或相似的信道的大尺度参数包括多普勒频移、多普勒扩展、平均时延、时延扩展以及空间接收参数。UE可假设网络设备采用了相同的波束用于传输这些SSB；不同SSB索引对应的SSB之间不认为存在QCL关系，因为它们可能来自于网络设备的不同的传输波束，经历了不同的信道传输特征。
终端设备在初始接入过程中，通过预定义的SSB可能的时频位置，尝试搜索SSB，进而通过检测到的SSB获得时间和频率同步、无线帧定时以及小区ID(如物理层小区ID)。网络设备会通过例如系统消息中的指示信息指示一个SSB突发集合中实际发送的SSB。相应地，终端设备在接入网络后，可以通过网络设备发送的该指示信息来确定一个SSB突发集合中实际发送的SSB。
在一些实施例中，终端设备在接收物理下行共享信道(physical downlink shared channel，PDSCH)时，应当对可能用于发送SSB的候选位置进行速率匹配。也就是说，如果终端设备收到调度信息指示 在第一时频资源上接收第一PDSCH，该第一时频资源中包括的第二时频资源用于传输SSB或者该第二时频资源可能用于传输SSB，则终端设备应假设该第二时频资源不用于PDSCH传输。该第二时频资源包括的资源单元的单位可以是资源元素(resource element，RE)或者物理资源块(physical resource block，PRB)。
在一些实施例中，终端设备还可根据收到的小区的系统消息获取随机接入过程中的资源配置。随机接入是初始接入过程中非常重要的过程，随机接入过程除了要完成建立无线资源控制(radio resource control，RRC)连接、维护上行同步、小区切换等功能之外，还承担波束管理、系统消息的请求等功能。
随机接入过程中的资源配置可以包括物理随机接入信道(physical random access channel，PRACH)资源配置，也称为PRACH传输机会(PRACH Occasion，RO)。RO是承载随机接入前导序列(Preamble)的时频资源。如果UE支持两步RACH传输，随机接入过程中的资源配置还可以包括物理上行共享信道(physical uplink shared channel，PUSCH)资源配置，也称为PUSCH传输机会(PUSCH Occasion，PO)。其中，两步RACH中的消息A(MsgA)包括MsgA Preamble和MsgA PUSCH，RO是用于承载MsgA Preamble的时频资源，PO是用于承载MsgA PUSCH的时频资源。
NR系统的特点是支持下行多波束。在网络设备与终端设备通信之前，网络设备需要知道终端设备所在的波束进而在后续的数据传输过程中设定合适的波束方向。由于随机接入过程中的PRACH是终端设备向网络设备发送的第一条信息，因此上报终端设备所在的波束的功能可以由PRACH承载。作为一种实现方式，可以通过SSB与RO之间的映射关系来确定终端设备所在的波束。
在NR系统中，支持以下多种SSB与RO之间映射的比例关系：1)一对一映射；2)多对一映射；3)一对多映射。图3给出了SSB与RO之间的映射关系的示意图，其中，SSB在下行的初始带宽部分(bandwidth part，BWP)上，RO在上行的初始BWP上，例如，SSB在图3中的下行BWP#0上，RO在图3中的上行BWP#0上。在图3的示例中，形状相同的SSB与RO表示具有映射关系，例如，SSB#0与RO#0具有映射关系，SSB#1与RO#1具有映射关系等。
在终端设备发起随机接入之前，终端设备对小区的信号质量以及小区中的各个SSB的信号强度会进行测量评估。在SSB信号检测强度超过门限的情况下，确定信号最强或较强的SSB(例如终端设备确定SSB#1为信号最强的SSB)后，终端设备可以根据SSB与RO之间的映射关系确定该信号最强或较强的SSB对应的RO，并在该RO上发送preamble。以终端设备确定SSB#1为信号最强的SSB为例，终端设备可以根据SSB与RO之间的映射关系确定该SSB#1对应的PRACH传输机会为RO#1，并在该RO#1上发送preamble。之后，若网络设备成功接收该preamble，则网络设备基于成功接收该preamble的资源信息可以获知该终端设备选择的SSB，例如网络设备根据关联关系可以确定该preamble与该SSB#1关联，从而可以根据该SSB#1确定后续通信对应的波束信息。
为了便于理解，下面结合图4和图5分别对四步随机接入过程和两步随机接入过程的流程进行介绍。
图4是四步随机接入过程的流程示意图。如图4所示，四步随机接入过程可以包括步骤S410至步骤S440。
在步骤S410(第一步)，终端设备在上行初始BWP上的PRACH资源上向网络设备发送随机接入前导序列(Preamble，也称为消息1、Msg1等)。
在步骤S420(第二步)，网络设备在检测到Msg1后向终端设备发送随机接入无线网络临时标识(random access radio network temporary identifier，RA-RNTI)加扰的PDCCH，该PDCCH可以通过下行初始BWP上的Type1-PDCCH公共搜索空间(common search space，CSS)中的资源发送，该PDCCH调度的PDSCH中可以包括该终端设备发送的preamble对应的随机接入响应(random access response，RAR，也称为消息2、Msg2等)。
相应地，终端设备在下行初始BWP上的Type1-PDCCH CSS上使用RA-RNTI检测PDCCH，并在检测到PDCCH后根据该PDCCH调度的PDSCH判定是否包括网络设备发送给自己的RAR。RAR中可以包括消息3(Msg3)的上行授权、定时提前命令(timing advance command，TA command)、临时RNTI(temporary cell RNTI，TC-RNTI)等信息。在一些实施例中，Type1-PDCCH CSS是网络设备通过系统消息和/或高层参数配置的。
在步骤S430(第三步)，终端设备在接收到RAR后，在RAR指示的上行资源上发送消息3(Msg3)。在一些实施例中，该步骤支持HARQ重传。也就是说，如果网络设备没有正确接收Msg3，则网络设备可以使用TC-RNTI扰码的PDCCH来调度Msg3的重传。其中，该PDCCH中可以承载DCI格式0_0。
在步骤S440(第四步)，网络设备向终端设备发送消息4(Msg4)，其中包括竞争解决消息。在一些实施例中，该步骤支持HARQ重传。如果终端设备没有正确接收Msg4，则网络设备可以使用TC-RNTI扰码的PDCCH来调度Msg4的重传。其中，该PDCCH中可以承载DCI格式1_0。如果终端设备 正确接收Msg4，且确定该Msg4是该终端设备的消息，则该终端设备的随机接入过程成功，否则随机接入过程失败。终端设备需要再次从第一步开始发起随机接入过程。
图5是两步随机接入过程的流程示意图。如图5所示，两步随机接入过程可以包括步骤S510和步骤S520。
在步骤S510(第一步)，终端设备在上行初始BWP上的RO和PO上向网络设备发送消息A(MsgA)，其中，MsgA包括MsgA Preamble和MsgA PUSCH。
在步骤S520(第二步)，网络设备在检测到MsgA后通过下行初始BWP上的Type1-PDCCH CSS中的资源向终端设备发送MsgB-RNTI加扰的PDCCH，该PDCCH调度的PDSCH中可以包括该终端设备发送的MsgA对应的随机接入响应(也称为消息B、MsgB等)。
如果网络设备只检测到MsgA Preamble，没有收到MsgA PUSCH，则该PDCCH调度的PDSCH中可以包括该终端设备发送的MsgA Preamble对应的回退RAR。相应地，终端设备在下行初始BWP上的Type1-PDCCH CSS上使用MsgB-RNTI检测PDCCH，并在检测到PDCCH后根据该PDCCH调度的PDSCH判定是否包括网络设备发送给自己的成功RAR(successRAR)或回退RAR。
如果终端设备正确接收成功RAR，则该终端设备向网络设备反馈ACK信息，该终端设备的随机接入过程成功。或者如果终端设备接收到回退RAR，则终端设备在接收到回退RAR后，在回退RAR指示的上行资源上发送Msg3，两步随机接入过程回退到四步随机接入过程。或者如果终端设备没有收到任何RAR，则随机接入过程失败，终端设备需要再次从第一步开始发起随机接入过程。
如前文所述，随着通信技术的发展，通信系统对无线网络覆盖水平提出了更高的要求。某些通信系统(如B5G系统、6G系统等未来演进的通信系统)考虑引入分布式天线系统，以便快速、灵活地构建满足用户需求的无线网络。然而，在分布式天线系统的场景下，终端设备和网络设备如何建立通信连接，目前并不清楚。
针对上述问题，本申请实施例提供了一种无线通信的方法、终端设备和网络设备，以便终端设备能够根据检测到的第一同步信号确定第一同步信号关联的天线端口，有利于终端设备后续在第一同步信号关联的天线端口上与网络设备建立连接，从而有利于提升数据传输的吞吐量，提升通信的可靠性和效率。
在介绍本申请实施例的技术方案之前，为了便于理解，先对本申请实施例涉及的分布式天线系统的相关概念进行介绍。
在本申请实施例中，信道或信号可以通过天线端口(antenna port，AP)进行传输，例如，网络设备与终端设备之间的信道或信号可以通过AP进行传输。通常情况下，以数据传输为例，一个天线端口可以用于传输一个数据流。网络设备和终端设备之间的通信可以通过一个或多个天线端口进行。
在一些实施例中，一个天线端口可以对应物理上的一个或一组天线。
在一些实施例中，用于传输网络设备和终端设备之间的通信的多个天线端口之间的关系可以是分布式天线端口。例如，该多个天线端口中的至少两个天线端口为分布式天线端口；或者，该多个天线端口中的任意两个天线端口为分布式天线端口。
以分布式天线端口为例，在一些实施例中，用于通信传输的多个天线端口或多个天线端口集合(天线端口簇)在地理位置上可以是分开的，或者说，用于通信传输的多个天线端口或多个天线端口集合所传输的信道或信号不具有QCL关系。
在一些实施例中，用于通信传输的多个天线端口所传输的信道或信号不具有QCL关系可以包括：该多个天线端口中的至少两个天线端口所传输的信道或信号不具有QCL关系，或者，该多个天线端口中的任意两个天线端口所传输的信道或信号不具有QCL关系。换句话说，分布式天线端口的特征可以包括：通过该多个天线端口中的至少两个天线端口所传输的信道或信号不具有QCL关系，或者通过该多个天线端口中的任意两个天线端口所传输的信道或信号不具有QCL关系。
以分布式天线端口关联的QCL关系为第一QCL关系为例，在一些实施例中，分布式天线端口的特征可以包括：通过多个天线端口中的至少两个天线端口所传输的信道或信号不具有第一QCL关系，或者通过多个天线端口中的任意两个天线端口所传输的信道或信号不具有第一QCL关系。
本申请实施例对第一QCL关系类型关联的信道大尺度参数不做限定。示例性地，上述第一QCL关系类型关联的信道大尺度参数可以包括以下中的一种：{多普勒频移，多普勒扩展，平均时延，时延扩展}；{多普勒频移，多普勒扩展，平均时延，时延扩展，空间接收参数}；{多普勒频移，多普勒扩展}；{多普勒频移，多普勒扩展，空间接收参数}；{多普勒频移，平均时延}；{多普勒频移，平均时延，空间接收参数}；以及{空间接收参数}。
在一些实施例中，用于传输网络设备和终端设备之间的通信的多个天线端口之间的关系可以是集中式天线端口。例如，该多个天线端口中的任意两个天线端口为集中式天线端口。
以集中式天线端口为例，在一些实施例中，用于通信传输的多个天线端口或多个天线端口集合所传输的信道或信号具有QCL关系。例如，用于通信传输的多个天线端口中的任意两个天线端口所传输的信道或信号具有QCL关系。
以集中式天线端口关联的QCL关系为第二QCL关系为例，在一些实施例中，集中式天线端口的特征可以包括：多个天线端口中的任意两个天线端口所传输的信道或信号具有第二QCL关系。
本申请实施例对第二QCL关系类型关联的信道大尺度参数不做限定。示例性地，上述第二QCL关系类型关联的信道大尺度参数可以包括以下中的一种：{多普勒频移，多普勒扩展，平均时延，时延扩展}；{多普勒频移，多普勒扩展，平均时延，时延扩展，空间接收参数}；{多普勒频移，多普勒扩展}；{多普勒频移，多普勒扩展，空间接收参数}；{多普勒频移，平均时延}；{多普勒频移，平均时延，空间接收参数}；以及{空间接收参数}。
在一些实施例中，上述第一QCL关系类型与第二QCL关系类型关联相同的信道大尺度参数。例如，第一QCL关系类型与第二QCL关系类型关联的信道大尺度参数均为{多普勒频移，多普勒扩展，平均时延，时延扩展，空间接收参数}。
在一些实施例中，上述第一QCL关系类型与第二QCL关系类型关联不同的信道大尺度参数。例如，第一QCL关系类型关联的信道大尺度参数为{多普勒频移，平均时延，空间接收参数}，第二QCL关系类型关联的信道大尺度参数为{多普勒频移，多普勒扩展，平均时延，时延扩展，空间接收参数}。
在一些实施例中，用于无线通信的网络中可以包括一个或多个天线端口集合，其中，天线端口集合也可以被称为天线端口簇(cluster)。一个天线端口集合中可以包括一个或多个天线端口，该天线端口集合中的一个或多个天线端口可以被用于传输信道或信号，例如传输网络设备与终端设备的通信信号。
在一些实施例中，一个天线端口集合可以为分布式天线端口集合，或者说，一个天线端口集合中包括多个天线端口，该多个天线端口中包括至少两个不具有第一QCL关系的天线端口。例如，一个天线端口集合中包括的至少两个天线端口不具有第一QCL关系，或者，一个天线端口集合中包括的任意两个天线端口不具有第一QCL关系。
在一些实施例中，一个天线端口集合可以为集中式天线端口集合，或者说，一个天线端口集合中包括的天线端口具有第二QCL关系。例如，一个天线端口集合中包括的任意两个天线端口具有第二QCL关系。
在一些实施例中，一个天线端口集合可以包括地理位置相近的多个天线端口。可选地，该多个天线端口可以为分布式天线端口；或者，该多个天线端口可以为集中式天线端口；或者，该多个天线端口中部分为分布式天线端口，部分为集中式天线端口。
应理解，在本申请实施例中，通信网络中可以包括一个或多个天线端口，信道或信号可以通过一个或多个天线端口进行传输；或者，通信网络中可以包括一个或多个天线端口集合，信道或信号可以通过一个或多个天线端口集合进行传输。
应理解，在本申请实施例中，用于信道或信号传输的频率资源可以称为载波。例如，用于下行信道或信号传输的频率资源可以称为下行载波，用于上行信道或信号传输的频率资源可以称为上行载波。本申请实施例对载波包含的频率资源不做限定，例如，载波可以包括用于信道或信号传输的一段连续的频率资源；或者，载波可以包括用于信道或信号传输的多段不连续的频率资源。本申请实施例对载波包含的频率资源的单位不做限定，作为示例而非限定，该频率资源的单位可以为资源块、资源元素等。
应理解，在本申请实施例中，载波和小区可以不具有关联关系，例如，载波不关联小区；或者，载波和小区可以具有关联关系，例如，“下行载波”可以替换为“下行小区”，“上行载波”可以替换为“上行小区”。
通过上述描述可以看出，在分布式天线系统中，用于通信传输的多个天线端口或多个天线端口集合在地理位置上是分开的，或者说，用于通信传输的多个天线端口或多个天线端口集合不具有QCL关系。另外，未来的通信系统中可能也不再有小区的概念。那么，作为一种可能的实现方式，终端设备可以根据自己所处的地理位置，选择距离自己较近的1个或多个天线端口(或天线端口集合)为自己进行服务，从而达到更优的数据传输吞吐量。但是，在这些场景下，终端设备和网络设备如何建立起通信连接是需要解决的问题。
在上文对分布式天线系统和分布式天线端口等相关概念进行介绍的基础上，下文对本申请的方法实施例进行介绍。需要说明的是，本申请实施例对本申请的技术方案的应用场景不做限定。示例性地，本申请可以应用于终端设备的初始接入过程，比如，应用于四步随机接入过程，应用于两步随机接入过程等。或者，本申请实施例可以应用于TN场景或NTN场景等。
图6为本申请一实施例提供的无线通信的方法的流程示意图。图6所示的方法是站在终端设备和网络设备进行交互的角度介绍的。该终端设备和网络设备例如可以是图1A-图1C中所述的任一终端设 备和网络设备，也可以是图2A-图2C中所述的任一终端设备和网络设备。
图6所示的方法可以包括步骤S610。在步骤S610，终端设备检测网络设备发送的同步信号。
网络设备可以发送一个或多个同步信号，相应地，终端设备可以检测网络设备发送的一个或多个同步信号，以便根据检测到的同步信号执行后续操作，比如，进行随机接入。
在一些实施例中，网络设备发送的同步信号可以包括同步信号块(SSB)，或者说，网络设备可以以SSB的形式向终端设备发送同步信号，以便终端设备根据SSB进行上行同步。不过本申请实施例并不限定于此，在一些实施例中，网络设备发送的同步信号可以是SSB之外的其他形式，只要该同步信号用于终端设备进行上行同步即可，例如，该同步信号可以是PSS、SSS等同步信号，或者，该同步信号可以是其他名称的同步信号。
也就是说，本申请实施例中，网络设备发送的同步信号可以和现有系统中的同步信号块或同步信号相同，也可以和现有系统中的同步信号块或同步信号不同，本申请实施例对此并不限定。
在一些实施例中，网络设备发送的同步信号(一个或多个同步信号)可以包括第一同步信号。第一同步信号可以是网络设备发送的同步信号中的任意一个或任意多个同步信号。
在一些实施例中，第一同步信号可以包括终端设备检测到的接收信号强度最强的同步信号。例如，终端设备检测到的同步信号包括SSB 0，SSB 1和SSB 2，其中SSB 1的接收信号强度最强，则第一同步信号可以包括SSB 1。
在一些实施例中，第一同步信号可以包括终端设备检测到的接收信号强度超过某一门限(阈值)的同步信号。例如，第一同步信号可以包括终端设备检测到的接收信号强度超过-50dBm的同步信号，假设终端设备检测到的同步信号包括SSB 0，SSB 1和SSB 2，其中SSB 0和SSB 1的接收信号强度超过该门限(如-50dBm)，则第一同步信号可以包括SSB 0和SSB 1。
在一些实施例中，第一同步信号是根据同步信号与天线端口之间的关联关系发送的。
在一些实施例中，第一同步信号可以用于确定第一同步信号关联的至少一个天线端口。例如，终端设备可以根据检测到的第一同步信号确定该第一同步信号关联的至少一个天线端口。
作为一种实现方式，终端设备和/或网络设备可以根据同步信号与天线端口之间的关联关系来确定第一同步信号关联的至少一个天线端口。也就是说，同步信号与天线端口之间可以存在关联关系(或称，映射关系、对应关系等)，终端设备和/或网络设备可以根据该关联关系确定某一同步信号关联的天线端口，或者确定某一天线端口关联的同步信号。关于同步信号与天线端口之间的关联关系的详细介绍可以参见后文，此处暂不赘述。
以终端设备检测到第一同步信号后，根据第一同步信号确定其关联的天线端口为例，在一些实施例中，继续参见图6，本申请实施例提供的方法还可以包括步骤S620，该步骤为可选的步骤。
在步骤S620，终端设备检测到第一同步信号后，根据第一同步信号确定第一同步信号关联的至少一个天线端口。换句话说，第一同步信号关联的至少一个天线端口可以通过第一同步信号显式或隐式确定(或指示)。
作为一种实现方式，根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括，根据第一同步信号确定第一同步信号关联的至少一个天线端口的标识。
本申请实施例对根据第一同步信号确定第一同步信号关联的至少一个天线端口的实现方式不做具体限定。示例性地，第一同步信号关联的至少一个天线端口的标识可以根据以下信息中的一种或多种确定：第一同步信号的索引，第一同步信号对应的同步信号序列，以及第一同步信号关联的下行信道中传输的信息。
作为一个示例，第一同步信号关联的至少一个天线端口的标识可以根据第一同步信号的索引来确定。例如，在同步信号与天线端口之间的关联关系是通过同步信号的索引与天线端口的标识来指示的情况下，可以根据第一同步信号的索引和该关联关系来确定第一同步信号关联的至少一个天线端口的标识。假设第一同步信号的索引为x0，根据第一同步信号的索引确定的至少一个天线端口的标识可能为x0，当然也可以为其他标识，只要该标识是根据第一同步信号的索引确定的即可。
作为另一个示例，第一同步信号关联的至少一个天线端口的标识可以根据第一同步信号对应(关联)的同步信号序列来确定。本申请实施例对第一同步信号对应的同步信号序列的类型不做限定，示例性地，第一同步信号对应的同步信号序列可以包括主同步信号序列和/或辅同步信号序列。这种情况下，第一同步信号关联的至少一个天线端口的标识根据第一同步信号的同步信号序列来确定可以包括以下中的一种或多种：第一同步信号关联的至少一个天线端口的标识根据第一同步信号的主同步信号序列和辅同步信号序列来确定，第一同步信号关联的至少一个天线端口的标识根据第一同步信号的主同步信号序列来确定，以及第一同步信号关联的至少一个天线端口的标识根据第一同步信号的辅同步信号序列来确定。作为一种具体的实现方式，第一同步信号关联的至少一个天线端口的标识可以根据第一同步信 号的同步信号序列ID来确定，例如，根据第一同步信号的主同步信号序列ID和辅同步信号序列ID来确定；或者，根据第一同步信号的主同步信号序列ID来确定；又或者，根据第一同步信号的辅同步信号序列ID来确定等。
作为又一个示例，第一同步信号关联的至少一个天线端口的标识可以根据第一同步信号的索引、第一同步信号关联的下行信道中传输的信息来确定，等等。
在一些实施例中，第一同步信号的传输位置是预定义的。例如，第一同步信号的传输位置在N个时间单元中是预定义的，N为正整数。
本申请实施例对上述N个时间单元的具体长度不做限定。在一些实施例中，上述N个时间单元可以为一个无线帧。在一些实施例中，上述N个时间单元可以为同步信号传输周期。也就是说，第一同步信号的传输位置在一个无线帧或者一个同步信号传输周期内可以是预定义的。
本申请实施例对时间单元的单位不做限定。在一些实施例中，本申请实施例提及的时间单元的单位可以是毫秒、秒、微秒等。在一些实施例中，本申请实施例提及的时间单元可以是帧、半帧、时隙、符号等。在一些实施例中，本申请提及的时间单元可以是根据子载波间隔确定的时间单元，例如，根据特定子载波(如同步信号的子载波间隔)或预定义的子载波间隔确定的时间单元。
在一些实施例中，终端设备可以根据检测到的第一同步信号确定该N个时间单元的边界。以该N个时间单元为一个无线帧为例，假设一个无线帧的长度包括N个时间单元，从该N个时间单元中的第1个时间单元起，每个时间单元中包括2个同步信号(如SSB)，当终端设备搜到SSB 0或SSB 1时，可以确定该承载SSB 0或SSB 1的时间单元为一个无线帧中的第1个时间单元，从而可以确定该无线帧的边界，获得无线帧定时。
在一些实施例中，第一同步信号关联的至少一个天线端口可以是根据预定义或预配置的信息确定的。例如，第一同步信号关联的至少一个天线端口可以是根据预定义或预配置的关联关系确定的，该预定义或预配置的关联关系可以用于指示同步信号与天线端口之间的关联关系。
本申请实施例中，终端设备能够根据检测到的第一同步信号确定第一同步信号关联的天线端口，有利于终端设备后续在第一同步信号关联的天线端口上与网络设备建立连接，从而有利于提升数据传输的吞吐量，提升通信的可靠性和效率。
图7是本申请另一实施例提供的无线通信的方法的流程示意图。图7所示的方法可以包括步骤S710和步骤S720，下面对这些步骤进行介绍。
在步骤S710，终端设备检测网络设备发送的同步信号。例如，终端设备检测网络设备发送的一个或多个同步信号。网络设备发送的一个或多个同步信号包括第一同步信号，第一同步信号可以是终端设备检测到的一个或多个同步信号。
关于步骤S710的详细介绍，可以参见前文对步骤S610的相关介绍，为了简洁，此处不再赘述。
在步骤S720，终端设备通过至少一个随机接入传输机会发送随机接入信号。
在一些实施例中，发送随机接入信号的至少一个随机接入传输机会是根据随机接入传输机会与天线端口之间的关联关系确定的。作为一种实现方式，终端设备可以根据检测到的第一同步信号确定第一同步信号关联的至少一个天线端口，然后根据第一同步信号关联的至少一个天线端口确定该至少一个随机接入传输机会。
在一些实施例中，发送随机接入信号的至少一个随机接入传输机会是根据随机接入传输机会与同步信号之间的关联关系确定的。作为一种实现方式，发送随机接入信号的至少一个随机接入传输机会是根据终端设备检测到的第一同步信号以及随机接入传输机会与同步信号之间的关联关系共同确定的。
关于随机接入传输机会与天线端口之间的关联关系、随机接入传输机会与同步信号之间的关联关系可以参见后文的介绍，此处暂不详述。
在一些实施例中，终端设备发送的随机接入信号例如可以包括preamble。
在一些实施例中，终端设备发送的随机接入信号例如可以包括preamble和上行信息。
在一些实施例中，如果终端设备检测或确定的第一同步信号为一个同步信号，则终端设备可以通过该一个同步信号关联的天线端口所关联的随机接入传输机会集合发起随机接入。例如，终端设备可以通过该一个同步信号关联的天线端口集合所关联的随机接入传输机会集合发起随机接入；或者，终端设备可以通过该一个同步信号关联的天线端口所关联的随机接入传输机会集合发起随机接入。
在一些实施例中，如果终端设备检测或确定的第一同步信号为多个同步信号，则终端设备可以通过该多个同步信号关联的天线端口所关联的多个随机接入传输机会集合中的至少一个随机接入传输机会集合发起随机接入。例如，终端设备可以通过该多个同步信号关联的多个天线端口集合所关联的多个随机接入传输机会集合中的至少一个随机接入传输机会集合发起随机接入；或者，终端设备可以通过该多个同步信号关联的多个天线端口所关联的多个随机接入传输机会集合中的至少一个随机接入传输机会 集合发起随机接入。
继续参见图7，在一些实施例中，本申请实施例提供的方法还可以包括步骤S730。在步骤S730，网络设备向终端设备发送随机接入响应。
在一些实施例中，该随机接入响应是针对终端设备发送的随机接入信号的响应。
在一些实施例中，该随机接入响应是网络设备通过第一同步信号关联的至少一个天线端口发送的。在一些实施例中，该随机接入响应可以是网络设备通过第一同步信号关联的至少一个天线端口所在的天线端口集合中的天线端口发送的。
图8是本申请又一实施例提供的无线通信的方法的流程示意图。图8所示的方法可以包括步骤S810和步骤S820，下面对这些步骤进行介绍。
在步骤S810，终端设备检测网络设备发送的同步信号。例如，终端设备检测网络设备发送的一个或多个同步信号。网络设备发送的一个或多个同步信号包括第一同步信号，第一同步信号可以是终端设备检测到的一个或多个同步信号。
关于步骤S810的详细介绍，可以参见前文对步骤S610的相关介绍，为了简洁，此处不再赘述。
在步骤S820，终端设备向网络设备发送指示信息(如后文提及的第三指示信息)，该指示信息用于确定(或指示)终端设备选择的天线端口和/或终端设备选择的同步信号。例如，该指示信息可以用于确定终端设备选择的M个天线端口和/或N个同步信号，其中，N，M为正整数。
在一些实施例中，上述指示信息用于确定终端设备选择的M个天线端口可以包括：上述指示信息可以用于指示终端设备选择的M个天线端口的标识。
在一些实施例中，上述M值可以是预定义或预配置的。在一些实施例中，上述M值可以是根据某一门限值(如第三门限值)确定的，该门限值可以是预定义或预配置的。
在一些实施例中，终端设备选择的M个天线端口可以是信号强度从强到弱的M个天线端口，即终端设备选择的M个天线端口可以是该终端设备关联的多个天线端口中的信号强度最强的M个天线端口。
在一些实施例中，终端设备选择的M个天线端口可以是大于或等于某一门限值(如第三门限值)的M个天线端口。也就是说，M的数量是根据该门限值确定的。
在一些实施例中，如果终端设备确定的天线端口的数量小于M，则可以指示比特为预设值或填充值。
在一些实施例中，用于确定M的门限值(如第三门限值)可以是用于指示信号强度的值，例如，该门限值可以是信号强度大于-50dBm等。
在一些实施例中，上述指示信息用于确定终端设备选择的N个同步信号可以包括：上述指示信息可以用于指示终端设备选择的N个同步信号的索引。
在一些实施例中，上述N值可以是预定义或预配置的。在一些实施例中，上述N值可以是根据某一门限值(如第四门限值)确定的，该门限值可以是预定义或预配置的。
在一些实施例中，终端设备选择的N个同步信号可以是接收信号强度从强到弱的N个同步信号，即终端设备选择的N个同步信号可以是该终端设备检测到的信号强度最强的N个同步信号。
在一些实施例中，终端设备选择的N个同步信号可以是大于或等于某一门限值(如第四门限值)的N个同步信号。也就是说，N的数量是根据该门限值确定的。
在一些实施例中，如果终端设备确定的同步信号的数量小于N，则可以指示比特为预设值或填充值。
在一些实施例中，用于确定N的门限值(如第四门限值)可以是用于指示接收信号强度的值，例如，该门限值可以是接收信号强度大于-50dBm等。
本申请实施例对承载步骤S820中的指示信息的方式不做具体限定。示例性地，该指示信息可以承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
作为一个示例，该指示信息可以承载于preamble中。作为另一个示例，该指示信息可以承载于Msg3中。作为又一个示例，该指示信息可以承载于随机接入过程完成后的Msg 5中。作为又一个示例，该指示信息可以承载于随机接入过程完成后的上行调度。作为又一个示例，该指示信息可以承载于两步随机接入过程中的上行信息等。
在一些实施例中，终端设备在检测终端设备发送的同步信号之前，可以根据预定义的同步信号可能的时频位置，尝试搜索同步信号。
在一些实施例中，终端设备检测到第一同步信号之后，可以根据检测到的第一同步信号获得时间和频率同步、定时，并确定第一同步信号关联的至少一个天线端口。
需要说明的是，上文各实施例提及的无线通信方法的流程之间可以进行结合，比如部分结合或全部结合，本申请实施例对此并不限定。示例性地，本申请实施例提供的无线通信方法可以包括前文的步骤S610、步骤S620和步骤S720。或者，本申请实施例提供的无线通信方法可以包括前文的步骤S610、步骤S720和步骤S820。
还需要说明的是，本申请实施例对各实施例的步骤进行结合后，对各步骤之间的执行顺序不做具体限定。示例性地，如果无线通信方法包括前文的步骤S610、步骤S620和步骤S720，步骤S720可以在步骤S620之后执行。如果无线通信方法包括前文的步骤S610、步骤S720和步骤S820，步骤S820可以在步骤S720之后执行，也可以在步骤S720之前执行，也可以和步骤S720同时执行等。
上文对无线通信的方法的步骤进行了介绍，下文对本申请实施例涉及的各种关联关系进行详细介绍。下文提及的关联关系与分布式天线系统的架构相关，或者说，在不同的分布式天线系统架构下，本申请实施例提及的关联关系可能会有不同。为了便于理解，下面先对本申请实施例涉及的两种分布式天线系统的架构进行介绍。
图9是本申请实施例提供的一种基于分布式天线系统布网的网络结构示意图。在图9所示的网络中，通信网络中包括一个或多个天线端口集合。作为示例而非限定，图9中以通信网络中包括两个天线端口集合为例进行说明。作为一个示例，通信网络中包括天线端口集合0和天线端口集合1，每个天线端口集合中包括一定地理区域范围内的多个天线端口。不同天线端口集合中包括的天线端口的数量可以相同，也可以不同，本申请对此并不限定。在该示例中，一个天线端口集合中包括的不同天线端口在地理上的位置均不相同，因此可以认为该天线端口集合中的任意两个天线端口不具有第一QCL关系，或者说，该天线端口集合中包括的天线端口为分布式天线端口。
在一些实施例中，一个天线端口集合中包括的天线端口可以分为主天线端口和辅天线端口两种类型。其中，一个天线端口集合中包括的主天线端口的个数可以为一个或者多个，一个天线端口集合中包括的辅天线端口的个数也可以为一个或者多个。作为示例而非限定，在图9中，天线端口集合0和天线端口集合1中分别包括一个主天线端口，除了主天线端口外的其他天线端口均为辅天线端口。
图10是本申请实施例提供的另一种基于分布式天线系统布网的网络结构示意图。在图10所示的网络中，通信网络中包括一个或多个天线端口。作为示例而非限定，图10中以通信网络中包括14个天线端口为例进行说明。作为一个示例，通信网络中包括一定地理区域范围内的多个天线端口。在一些实施例中，通信网络中包括的不同天线端口关联的物理天线的数量可以相同，也可以不同，本申请对此并不限定。在该示例中，不同天线端口在地理上的位置均不相同，因此可以认为任意两个天线端口不具有第一QCL关系，或者说，该通信网络中包括的天线端口为分布式天线端口。
在一些实施例中，图10所示的通信网络中包括的天线端口不区分主天线端口和辅天线端口。不过本申请实施例并不限定于此，在一些实施例中，该通信网络中包括的天线端口也可以包括主天线端口和辅天线端口。
下面结合实施例一和实施二分别对两种分布式天线系统架构下，本申请实施例涉及的无线通信方法进行介绍。其中，实施例一可以应用于图9所示的网络架构中，实施例二可以应用于图10所示的网络架构中。
实施例一：同步信号与天线端口集合关联
为了使终端设备可以接入基于分布式天线系统布网的无线通信网络，网络设备可以通过天线端口集合中的天线端口发送同步信号。以图9所示的通信网络为例，网络设备可以通过天线端口集合0和/或天线端口集合1中的天线端口发送同步信号，如图11所示。
应理解，网络设备发送的同步信号可以是指同步信号块，也可以是其他形式的同步信号。在一些实施例中，网络设备发送的同步信号可以和现有系统中的同步信号相同，也可以和现有系统中的同步信号不同，本申请对此并不限定。
网络设备发送同步信号之后，终端设备可以检测网络设备发送的同步信号。网络设备发送的同步信号可以包括第一同步信号，第一同步信号例如可以是网络设备发送的同步信号中的任意一个或多个同步信号。
在一些实施例中，第一同步信号例如可以是终端设备检测到的接收信号强度最强的同步信号。
在一些实施例中，第一同步信号例如可以是终端设备检测到的接收信号强度超过第一门限的同步信号。需要说明的是，本申请实施例对第一门限的取值不作具体限定，第一门限可以是根据实际情况设置的取值，例如，第一门限为-50dBm。还需要说明的是，本申请实施例对第一门限的配置方式不做限定，示例性地，第一门限可以是预定义的或者预配置的，或者也可以是网络设备通过高层信令(如RRC信令)配置的，或者也可以是基于终端设备的实现确定的。
在一些实施例中，在终端设备检测到第一同步信号后，可以根据第一同步信号确定第一同步信号关 联的至少一个天线端口。
在一些实施例中，第一同步信号关联的至少一个天线端口为第一天线端口集合中的天线端口，其中，第一同步信号与第一天线端口集合关联。
第一天线端口集合可以是无线通信网络系统中的任一天线端口集合，以图9所示的网络系统为例，第一天线端口集合可以是图9中的天线端口集合0，也可以是图9中的天线端口集合1。
第一天线端口集合中可以包括一个或多个天线端口。在一些实施例中，第一天线端口集合包括多个(两个或两个以上)天线端口的情况下，第一天线端口集合包括的多个天线端口中的至少两个天线端口可以为分布式天线端口，或者说，第一天线端口集合包括的多个天线端口中的至少两个天线端口在地理位置上是分开的或不具有第一QCL关系。在一些实施例中，第一天线端口集合包括的多个天线端口中的任意两个天线端口为分布式天线端口，或者说，第一天线端口集合包括的多个天线端口中的任意两个天线端口在地理位置上是分开的或不具有第一QCL关系。
在一些实施例中，第一同步信号与第一天线端口集合关联可以是指，第一同步信号与第一天线端口集合之间具有关联关系或映射关系，根据第一同步信号能够确定第一天线端口集合，或者根据第一天线端口集合能够确定第一同步信号。
在一些实施例中，第一同步信号与第一天线端口集合之间的关联关系是通过第一关联关系指示的。或者说，第一关联关系可以用于指示同步信号与天线端口集合之间的关联关系，比如指示不同的同步信号分别关联的天线端口集合。
也就是说，在本申请实施例中，不同的天线端口集合可以关联到不同的同步信号。该不同的天线端口集合与不同的同步信号之间的关联关系可以通过第一关联关系来指示。下面对第一关联关系进行介绍。
在一些实施例中，第一关联关系可以通过指示同步信号的索引与天线端口集合的标识来指示同步信号与天线端口集合之间的关联关系。例如，第一关联关系可以包括：SSB 0与天线端口集合0关联，SSB 1与天线端口集合1关联等。
在一些实施例中，第一关联关系中，一个同步信号可以关联一个天线端口集合，也就是说，同步信号与天线端口集合之间可以是一一对应的关系。例如，SSB 0与天线端口集合0关联，SSB 1与天线端口集合1关联。
在一些实施例中，第一关联关系中，一个同步信号可以关联多个天线端口集合，也就是说，同步信号与天线端口集合之间可以是一对多的对应关系。例如，SSB 0与天线端口集合0和天线端口集合1均关联。
在一些实施例中，第一关联关系中，多个同步信号可以关联一个天线端口集合，也就是说，同步信号与天线端口集合之间可以是多对一的对应关系。例如，SSB 0和SSB 1均与天线端口集合0关联。
在一些实施例中，第一关联关系可以包括以下中的一种或多种：一个同步信号与一个天线端口集合的对应关系；一个同步信号与多个天线端口集合的对应关系；多个同步信号与一个天线端口集合的对应关系；多个同步信号与多个天线端口集合的一一对应关系；一个同步信号索引与一个天线端口集合标识的对应关系；一个同步信号索引与多个天线端口集合标识的对应关系；多个同步信号索引与一个天线端口集合标识的对应关系；以及多个同步信号索引与多个天线端口集合标识的一一对应关系。
在一些实施例中，第一关联关系可以是预定义的或预配置的。例如，第一关联关系可以是协议预定义的。在一些实施例中，第一关联关系可以是网络设备通过高层信令配置的。
在一些实施例中，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括，终端设备根据第一同步信号确定第一天线端口集合的标识。例如，终端设备根据第一同步信号和第一关联关系确定第一同步信号关联的第一天线端口集合的标识。
在一些实施例中，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括，终端设备根据第一同步信号确定第一天线端口集合中的至少一个天线端口的标识。例如，终端设备根据第一同步信号和第一关联关系确定第一同步信号关联的第一天线端口集合或第一天线端口集合的标识，并进一步从第一天线端口集合中确定第一天线端口集合中的至少一个天线端口的标识(如第一天线端口集合中的主天线端口的标识或辅天线端口的标识等)。
也就是说，在一些实施例中，第一天线端口集合的标识或第一天线端口集合中的至少一个天线端口的标识是根据第一同步信号确定的。本申请实施例对根据第一同步信号确定第一天线端口集合的标识或第一天线端口集合中的至少一个天线端口的标识的实现方式不作具体限定。例如，可以通过第一同步信号显式或隐式确定第一天线端口集合的标识或第一天线端口集合中的至少一个天线端口的标识。
作为一种实现方式，第一天线端口集合的标识或第一天线端口集合中的至少一个天线端口的标识可以是根据以下信息中的一种或多种确定的：第一同步信号的索引，第一同步信号对应的同步信号序列， 以及第一同步信号关联的下行信道中传输的信息。关于如何利用上述信息确定第一天线端口集合的标识或第一天线端口集合中的至少一个天线端口的标识的具体介绍，可以参见前文，为了简洁，此处不再赘述。
前文提及，第一同步信号是网络设备向终端设备发送的，下面对第一同步信号的发送进行介绍。
在一些实施例中，该第一同步信号可以是根据第一关联关系发送的。这种情况下，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括：终端设备根据第一同步信号和第一关联关系确定第一天线端口集合。
在一些实施例中，第一同步信号是通过第一天线端口集合中的部分天线发送的。例如，第一天线端口集合包括天线端口0、天线端口1和天线端口2，第一同步信号可以是通过天线端口0发送的，也可以是通过天线端口1发送的，也可以是通过天线端口0和天线端口2发送的。
在一些实施例中，第一同步信号是通过第一天线端口集合中的全部天线端口(所有天线端口)发送的。也就是说，第一天线端口集合中的全部天线端口用于发送第一同步信号。例如，第一天线端口集合包括天线端口0、天线端口1和天线端口2，其中，天线端口0、天线端口1和天线端口2均发送第一同步信号。
在一些实施例中，第一天线端口集合可以包括主天线端口。这种情况下，第一同步信号可以是通过该主天线端口发送的。例如，第一天线端口集合可以包括一个或多个主天线端口，该一个或多个主天线端口均可以用于发送第一同步信号。
在一些实施例中，第一天线端口集合中可以包括辅天线端口，例如，可以包括一个或多个辅天线端口。在一些实施例中，第一天线端口集合中的辅天线端口不发送同步信号，例如，辅天线端口不发送第一同步信号，也不发送其他同步信号。
在一些实施例中，第一天线端口集合中的主天线端口可以发送同步信号，第一天线端口集合中的辅天线端口不发送同步信号。例如，主天线端口可以发送第一同步信号，而辅天线端口不能发送第一同步信号。
在一些实施例中，第一天线端口集合中的部分天线端口不发送与第一天线端口集合不具有关联关系的同步信号。例如，第一同步信号与第一天线端口集合具有一一对应的关联关系，则第一天线端口集合中的部分天线端口不发送第一同步信号之外的同步信号。作为一个示例，第一天线端口集合包括天线端口0、天线端口1和天线端口2，天线端口0不发送第一同步信号之外的同步信号，或者，天线端口0和天线端口1不发送第一同步信号之外的同步信号等。
在一些实施例中，第一天线端口集合中的全部天线端口不发送与第一天线端口集合不具有关联关系的同步信号。例如，第一同步信号与第一天线端口集合具有一一对应的关联关系，则第一天线端口集合中的全部天线端口不发送第一同步信号之外的同步信号。作为一个示例，第一天线端口集合包括天线端口0、天线端口1和天线端口2，天线端口0、天线端口1和天线端口2均不发送第一同步信号之外的同步信号。
在一些实施例中，第一天线端口集合中的主天线端口和/或辅天线端口不发送与第一天线端口集合不具有关联关系的同步信号。例如，第一天线端口集合中的主天线端口不发送与第一天线端口集合不具有关联关系的同步信号；或者，第一天线端口集合中的辅天线端口不发送与第一天线端口集合不具有关联关系的同步信号；又或者，第一天线端口集合中的主天线端口和辅天线端口均不发送与第一天线端口集合不具有关联关系的同步信号。
在一些实施例中，第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，第一同步信号与第一随机接入传输机会集合之间具有第二关联关系。其中，第一随机接入传输机会集合中的至少一个随机接入传输机会用于发送随机接入信号(如preamble)。
也就是说，在本申请实施例中，不同的天线端口集合可以关联到不同的随机接入传输机会集合。该不同的天线端口集合与不同的随机接入传输机会集合之间的关联关系可以通过第二关联关系来指示。或者，在本申请实施例中，不同的同步信号可以关联到不同的随机接入传输机会集合。该不同的同步信号与不同的随机接入传输机会集合之间的关联关系可以通过第二关联关系来指示。下面对第二关联关系进行介绍。
在一些实施例中，天线端口集合与随机接入传输机会集合之间的关联关系是直接指示的，例如，第二关联关系直接用于指示天线端口集合与随机接入传输机会集合之间的关联关系。在一些实施例中，天线端口集合与随机接入传输机会集合之间的关联关系是间接指示的，例如，第二关联关系通过指示天线端口集合与同步信号的之间的关联关系、以及同步信号与随机接入传输机会集合之间的关联关系来间接指示天线端口集合与随机接入传输机会集合之间的关联关系。作为一个示例，天线端口集合0关联SSB 0，SSB 0关联随机接入传输机会集合0，因此，天线端口集合0关联随机接入传输机会集合0。作 为另一个示例，天线端口集合1关联SSB 1，SSB 1关联随机接入传输机会集合1，因此，天线端口集合1关联随机接入传输机会集合1。
在一些实施例中，第二关联关系可以通过指示天线端口集合的标识与随机接入传输机会集合的标识来指示天线端口集合与随机接入传输机会集合之间的关联关系。例如，第二关联关系可以包括：天线端口集合0与随机接入传输机会集合0关联，天线端口集合1与随机接入传输机会集合1关联等。
在一些实施例中，第二关联关系中，一个天线端口集合可以关联一个随机接入传输机会集合，也就是说，天线端口集合与随机接入传输机会集合之间可以是一一对应的关系。例如，天线端口集合0与随机接入传输机会集合0关联，天线端口集合1与随机接入传输机会集合1关联。
在一些实施例中，第二关联关系中，一个天线端口集合可以关联多个随机接入传输机会集合，也就是说，天线端口集合与随机接入传输机会集合之间可以是一对多的对应关系。例如，天线端口集合0与随机接入传输机会集合0和随机接入传输机会集合1均关联。
在一些实施例中，第二关联关系中，多个天线端口集合可以关联一个随机接入传输机会集合，也就是说，天线端口集合与随机接入传输机会集合之间可以是多对一的对应关系。例如，天线端口集合0和天线端口集合1均与随机接入传输机会集合0关联。
在一些实施例中，第二关联关系可以通过指示同步信号的索引与随机接入传输机会集合的标识来指示同步信号与随机接入传输机会集合之间的关联关系。例如，第二关联关系可以包括：SSB 0与随机接入传输机会集合0关联，SSB 1与随机接入传输机会集合1关联等。
在一些实施例中，第二关联关系中，一个同步信号可以关联一个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是一一对应的关系。例如，SSB 0与随机接入传输机会集合0关联，SSB 1与随机接入传输机会集合1关联。
在一些实施例中，第二关联关系中，一个同步信号可以关联多个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是一对多的对应关系。例如，SSB 0与随机接入传输机会集合0和随机接入传输机会集合1均关联。
在一些实施例中，第二关联关系中，多个同步信号可以关联一个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是多对一的对应关系。例如，SSB 0和SSB 1均与随机接入传输机会集合0关联。
在一些实施例中，第二关联关系可以包括以下中的一种或多种，一个天线端口集合与一个随机接入传输机会集合的对应关系；一个天线端口集合与多个随机接入传输机会集合的对应关系；多个天线端口集合与一个随机接入传输机会集合的对应关系；多个天线端口集合与多个随机接入传输机会集合的一一对应关系；一个天线端口集合标识与一个随机接入传输机会集合标识的对应关系；一个天线端口集合标识与多个随机接入传输机会集合标识的对应关系；多个天线端口集合标识与一个随机接入传输机会集合标识的对应关系；多个天线端口集合标识与多个随机接入传输机会集合标识的一一对应关系；一个同步信号与一个随机接入传输机会集合的对应关系；一个同步信号与多个随机接入传输机会集合的对应关系；多个同步信号与一个随机接入传输机会集合的对应关系；多个同步信号与多个随机接入传输机会集合的一一对应关系；一个同步信号索引与一个随机接入传输机会集合标识的对应关系；一个同步信号索引与多个随机接入传输机会集合标识的对应关系；多个同步信号索引与一个随机接入传输机会集合标识的对应关系；以及多个同步信号索引与多个随机接入传输机会集合标识的一一对应关系。
在一些实施例中，第二关联关系可以是预定义的或预配置的。例如，第二关联关系可以是协议预定义的。在一些实施例中，第二关联关系可以是网络设备通过高层信令配置的。
在一些实施例中，终端设备可以通过第一随机接入传输机会集合中的至少一个随机接入传输机会发送随机接入信号，该至少一个随机接入传输机会是根据第二关联关系确定的。或者说，终端设备可以根据第二关联关系确定第一随机接入传输机会集合中的至少一个随机接入传输机会，并通过该至少一个随机接入传输机会发送随机接入信号。
在一些实施例中，终端设备可以向第一天线端口集合中的至少一个天线端口发送随机接入信号。或者说，第一天线端口集合中的至少一个天线端口可以用于检测与第一天线端口集合关联的第一随机接入传输机会集合。例如，第一天线端口集合中的至少一个天线端口可以用于监听与第一天线端口集合关联的第一随机接入传输机会集合中的资源上是否有随机接入信号；和/或，第一天线端口集合中的至少一个天线端口可以用于接收与第一天线端口集合关联的第一随机接入传输机会集合中的资源上传输的随机接入信号。
在一些实施例中，终端设备可以向第一天线端口集合中的至少一个天线端口发送随机接入信号可以包括以下中的一种或多种：终端设备向第一天线端口集合中发送第一同步信号的天线端口发送随机接入信号；终端设备向第一天线端口集合中的部分天线端口发送随机接入信号；终端设备向第一天线端 口集合中的全部天线端口发送随机接入信号；终端设备向第一天线端口集合中的主天线端口发送随机接入信号；终端设备向第一天线端口集合中的辅天线端口发送随机接入信号。
在一些实施例中，终端设备向第一天线端口集合中发送第一同步信号的天线端口发送随机接入信号可以理解为，发送第一同步信号的天线端口与检测随机接入信号的天线端口是相同的天线端口。例如，第一同步信号是在第一天线端口集合中的天线端口0上发送的，那么后续随机接入信号的检测也将在第一天线端口集合中的天线端口0上进行。
在一些实施例中，在终端设备向第一天线端口集合中的全部天线端口发送随机接入信号的情况下，第一天线端口集合中的全部天线端口可以用于检测随机接入信号。作为一种实现方式，第一天线端口集合中的辅天线端口可以检测随机接入信号，并将检测结果上报给主天线端口；第一天线端口集合中的主天线端口可以检测随机接入信号，并根据检测到的随机接入信号进行随机接入响应调度。
在一些实施例中，在终端设备向第一天线端口集合中的主天线端口发送随机接入信号的情况下，第一天线端口集合中的一个或多个主天线端口可以用于检测随机接入信号。
在一些实施例中，在终端设备向第一天线端口集合中的辅天线端口发送随机接入信号的情况下，第一天线端口集合中的一个或多个辅天线端口可以用于检测随机接入信号。
在一些实施例中，第一天线端口集合中的辅天线端口不检测与第一天线端口集合关联的随机接入传输机会集合。或者说，第一天线端口集合中的辅天线端口不检测随机接入信号。
在一些实施例中，第一天线端口集合中的至少一个天线端口可以用于检测与第一天线端口集合关联的第一随机接入传输机会集合，且该至少一个天线端口不检测与第一天线端口集合不具有关联关系的随机接入传输机会集合。
在一些实施例中，终端设备向第一天线端口集合中的至少一个天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的发送空间滤波器与该至少一个天线端口的接收空间滤波器部分重叠或全部重叠。例如，终端设备向第一天线端口集合中的主天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的发送空间滤波器与第一天线端口集合中的主天线端口的接收空间滤波器部分重叠或全部重叠。
在一些实施例中，终端设备向第一天线端口集合中的至少一个天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的资源与该至少一个天线端口具有关联关系。例如，终端设备向第一天线端口集合中的主天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的资源与第一天线端口集合中的主天线端口具有关联关系。
在一些实施例中，终端设备向第一天线端口集合中的至少一个天线端口发送随机接入信号可以是指，终端设备发送随机接入信号使用的发送波束方向与该至少一个天线端口的接收波束方向具有关联关系。例如，终端设备向第一天线端口集合中的主天线端口发送随机接入信号可以是指，终端设备发送随机接入信号使用的发送波束方向与第一天线端口集合中的主天线端口的接收波束方向具有关联关系。
在一些实施例中，终端设备可以通过第一随机接入传输机会集合中的至少一个随机接入传输机会发送随机接入信号可以包括，终端设备通过第一随机接入传输机会集合中的至少一个随机接入传输机会向第一天线端口集合中的至少一个天线端口发送随机接入信号。该第一天线端口集合中的至少一个天线端口可以是以下中的一种或多种：第一天线端口集合中发送第一同步信号的天线端口，第一天线端口集合中的部分天线端口，第一天线端口集合中的全部天线端口，第一天线端口集合中的主天线端口，以及第一天线端口集合中的辅天线端口。
在一些实施例中，终端设备在发送随机接入信号之后，还可以检测随机接入响应，该随机接入响应是针对该终端设备发送的随机接入信号的响应。
本申请对发送随机接入响应的天线端口不做具体限定。例如，随机接入响应是通过第一天线端口集合中的至少一个天线端口发送的。示例性地，该第一天线端口集合中的至少一个天线端口可以是以下中的一种或多种：第一天线端口集合中发送第一同步信号的天线端口，第一天线端口集合中的部分天线端口，第一天线端口集合中的全部天线端口，第一天线端口集合中的主天线端口，以及第一天线端口集合中的辅天线端口。
作为一种具体的实现方式，第一天线端口集合中的主天线端口可以用于发送随机接入响应。作为另一种具体的实现方式，第一天线端口集合中的主天线端口可以调度辅天线端口发送随机接入响应，例如，主天线端口可以调度检测到随机接入信号的辅天线端口发送随机接入响应。
在一些实施例中，第一天线端口集合中的至少一个天线端口可以用于传输第一指示信息，该第一指示信息可以用于确定第一天线端口集合和/或传输的同步信号。下面对第一指示信息进行详细介绍。
在一些实施例中，第一指示信息可以用于确定以下信息中的至少一项：第一天线端口集合的标识；第一天线端口集合包括的天线端口的标识；第一天线端口集合中的主天线端口的标识；第一天线端口集 合中的辅天线端口的标识；第一天线端口集合中发送第一同步信号的天线端口的标识；第一天线端口集合中检测随机接入信号的天线端口的标识；第一天线端口集合中发送随机接入响应的天线端口的标识；第一天线端口集合所处的通信网络中传输的同步信号的索引；第一天线端口集合关联的同步信号的索引；第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；第一天线端口集合关联的准共址关系的类型；第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
在一些实施例中，第一指示信息用于确定传输的同步信号可以包括，第一指示信息用于指示第一天线端口集合关联的同步信号，以确定第一天线端口集合传输的同步信号。例如，第一天线端口集合中的至少一个天线端口可以发送第一指示信息，该第一指示信息通过指示第一天线端口集合关联的同步信号为SSB 0来指示传输的同步信号为SSB 0。
在一些实施例中，第一指示信息用于确定传输的同步信号可以包括，第一指示信息用于指示第一天线端口集合所处的通信网络中传输的同步信号。例如，第一天线端口集合所处的通信网络中包括第一天线端口集合和第二天线端口集合，第一天线端口集合关联SSB 0，第二天线端口集合关联SSB 1，第一天线端口集合中的至少一个天线端口可以发送第一指示信息，该第一指示信息指示传输的同步信号为SSB 0和SSB 1。
本申请实施例对传输第一指示信息的至少一个天线端口不做具体限定。示例性地，传输第一指示信息的至少一个天线端口可以是以下中的一种或多种：第一天线端口集合中发送第一同步信号的天线端口，第一天线端口集合中检测随机接入信号的天线端口，以及第一天线端口集合中的全部天线端口。
在一些实施例中，第一天线端口集合中的天线端口在调度数据传输时，可以对用于同步信号传输的资源进行速率匹配。
作为一种实现方式，第一天线端口集合中的天线端口在调度数据传输时，可以对第一天线端口集合关联的同步信号传输的资源进行速率匹配。例如，第一天线端口集合关联SSB 0，第一天线端口集合中的天线端口调度第一时频资源进行数据传输，SSB 0传输占用第二时频资源，若该第一时频资源与该第二时频资源在时域上和/或频域上至少部分重叠，该重叠的部分不用于数据传输。
作为另一种实现方式，第一天线端口集合中的天线端口在调度数据传输时，可以对第一天线端口集合所处的通信网络中传输的同步信号的资源进行速率匹配。例如，第一天线端口集合所处的通信网络中传输的SSB包括SSB 0和SSB 1，第一天线端口集合中的天线端口调度第一时频资源进行数据传输，SSB 0和SSB 1传输占用第三时频资源，若该第一时频资源与该第三时频资源在时域上和/或频域上至少部分重叠，该重叠的部分不用于数据传输。
为了便于理解，下面以同步信号为NR系统中的SSB，随机接入传输机会集合为NR系统中的RO集合为例，结合图9所示的网络架构，对实施例一中的初始接入过程进行说明。
通信网络中包括第一AP集合(如图9中的AP集合0)和第二AP集合(如图9中的AP集合1)，第一AP集合中的AP传输SSB 0，第一AP集合中的AP不传输SSB 1；第二AP集合中的AP传输SSB 1，第二AP集合中的AP不传输SSB 0。可选地，SSB 0和SSB 1在无线帧中的位置与NR系统中SSB 0和SSB 1在无线帧中的位置相同。可选地，AP集合的标识根据SSB索引来确定，即与SSB 0关联的第一AP集合的标识为0，与SSB 1关联的第二AP集合的标识为1。
第一AP集合关联第一RO集合，第二AP集合关联第二RO集合。
终端设备在初始接入过程中，通过预定义的SSB可能的时频位置，尝试搜索SSB。在图9所示的情况中，终端设备可能检测到SSB 1，并通过检测到的SSB 1获得时间和频率同步、无线帧定时以及确定第二AP集合的标识；相应的，终端设备可以通过第二RO集合中的RO向网络设备发起随机接入。
或者，终端设备可能也检测到SSB 0和SSB 1，并通过检测到的SSB 0和SSB 1获得时间和频率同步、无线帧定时以及确定第一AP集合标识和第二AP集合标识。相应的，终端设备可以通过第一RO集合中的RO向网络设备发起随机接入；或者，终端设备可以通过第二RO集合中的RO向网络设备发起随机接入；或者，终端设备可以根据收到的SSB 0和SSB 1的信号强度，选择信号更强的SSB关联的AP集合，例如第二AP集合，并根据该第二AP集合关联的第二RO集合中的RO向网络设备发起随机接入。
在一些情况中，第一AP集合中的主AP传输SSB 0，辅AP不传输SSB 0；第二AP集合中的主AP传输SSB 1，辅AP不传输SSB 1。相应地，第一AP集合中的主AP检测第一RO集合中的RO，辅AP不检测第一RO集合中的RO；第二AP集合中的主AP检测第二RO集合中的RO，辅AP不检测第二RO集合中的RO。
在另一些情况中，第一AP集合中的所有AP都传输SSB 0；第二AP集合中的所有AP都传输SSB 1。相应地，第一AP集合中的所有AP都检测第一RO集合中的RO；第二AP集合中的所有AP都检测第二RO集合中的RO。
在四步随机接入过程中，终端设备发起随机接入包括发送随机接入前导序列。
当AP集合中的主AP检测到RO上传输的随机接入前导序列后，网络设备调度该主AP向终端设备发送该随机接入前导序列对应的RAR；终端设备在接收到RAR后，向该主AP发送消息3；在收到消息3后，网络设备调度该主AP向终端设备发送消息4，从而完成随机接入。可选地，该实施例适用于AP集合中的主AP传输与该AP集合关联的SSB的情况。
或者，当AP集合中的辅AP检测到RO上传输的随机接入前导序列后，辅AP将检测结果上报给网络设备，网络设备调度该AP集合中的主AP向终端设备发送该随机接入前导序列对应的RAR；终端设备在接收到RAR后，向该主AP发送消息3；在收到消息3后，网络设备调度该主AP向终端设备发送消息4，从而完成随机接入。可选地，该实施例适用于AP集合中的主AP传输与该AP集合关联的SSB，且辅AP不传输与该AP集合关联的SSB的情况。
或者，当AP集合中的辅AP检测到RO上传输的随机接入前导序列后，网络设备调度该辅AP向终端设备发送该随机接入前导序列对应的RAR；终端设备在接收到RAR后，向该辅AP发送消息3；在收到消息3后，网络设备调度该辅AP向终端设备发送消息4，从而完成随机接入。可选地，该实施例适用于AP集合中的辅AP传输与该AP集合关联的SSB的情况。
在两步随机接入过程中，终端设备发起随机接入包括发送随机接入前导序列和上行信息。
当AP集合中的主AP检测到RO上传输的随机接入前导序列和上行信息后，网络设备调度该主AP向终端设备发送随机接入成功对应的RAR，从而完成随机接入；当AP集合中的主AP检测到RO上传输的随机接入前导序列但没有检测到上行信息时，网络设备调度该主AP向终端设备发送该随机接入前导序列对应的RAR，回退到四步随机接入过程。可选地，该实施例适用于AP集合中的主AP传输与该AP集合关联的SSB的情况。
或者，当AP集合中的辅AP检测到RO上传输的随机接入前导序列和上行信息后，辅AP将检测结果上报给网络设备，网络设备调度该AP集合中的主AP向终端设备发送随机接入成功对应的RAR，从而完成随机接入；当AP集合中的辅AP检测到RO上传输的随机接入前导序列但没有检测到上行信息时，网络设备调度该AP集合中的主AP向终端设备发送该随机接入前导序列对应的RAR，回退到四步随机接入过程。可选地，该实施例适用于AP集合中的主AP传输与该AP集合关联的SSB，且辅AP不传输与该AP集合关联的SSB的情况。
或者，当AP集合中的辅AP检测到RO上传输的随机接入前导序列和上行信息后，网络设备调度该辅AP向终端设备发送随机接入成功对应的RAR，从而完成随机接入；当AP集合中的辅AP检测到RO上传输的随机接入前导序列但没有检测到上行信息时，网络设备调度该辅AP向终端设备发送该随机接入前导序列对应的RAR，回退到四步随机接入过程。可选地，该实施例适用于AP集合中的辅AP传输与该AP集合关联的SSB的情况。
实施例二：同步信号与天线端口关联
为了使终端设备可以接入基于分布式天线系统布网的无线通信网络，网络设备可以通过通信网络中的天线端口发送同步信号。以图10所示的通信网络为例，网络设备可以通过天线端口0至天线端口13中的一个或多个天线端口发送同步信号，如图12所示。
应理解，网络设备发送的同步信号可以是指同步信号块，也可以是其他形式的同步信号。在一些实施例中，网络设备发送的同步信号可以和现有系统中的同步信号相同，也可以和现有系统中的同步信号不同，本申请对此并不限定。
网络设备发送同步信号之后，终端设备可以检测网络设备发送的同步信号。网络设备发送的同步信号可以包括第一同步信号，第一同步信号例如可以是网络设备发送的同步信号中的任意一个或多个同步信号。
在一些实施例中，第一同步信号例如可以是终端设备检测到的接收信号强度最强的同步信号。
在一些实施例中，第一同步信号例如可以是终端设备检测到的接收信号强度超过第二门限的同步信号。需要说明的是，本申请实施例对第二门限的取值不作具体限定，第二门限可以是根据实际情况设置的取值，例如，第二门限为-50dBm。还需要说明的是，本申请实施例对第二门限的配置方式不做限定，示例性地，第二门限可以是预定义的或者预配置的，或者也可以是网络设备通过高层信令(如RRC信令)配置的，或者也可以是基于终端设备的实现确定的。
在一些实施例中，第二门限和前文提及的第一门限可以相同。例如，第二门限和第一门限的取值均为-50dBm。
在一些实施例中，第二门限和前文提及的第一门限可以不同。例如，第二门限的取值均为-50dBm，第一门限的取值为-55dBm。
在一些实施例中，在终端设备检测到第一同步信号后，可以根据第一同步信号确定第一同步信号关 联的至少一个天线端口。
在一些实施例中，第一同步信号关联的至少一个天线端口为第二天线端口，其中，第一同步信号与第二天线端口关联。
第二天线端口可以是无线通信网络系统中的任一天线端口，以图10所示的网络系统为例，第二天线端口可以是图10中的天线端口0，也可以是图10中的天线端口2，也可以是图10中的天线端口12等。
在一些实施例中，第一同步信号与第二天线端口关联可以是指，第一同步信号与第二天线端口之间具有关联关系或映射关系，根据第一同步信号能够确定第二天线端口，或者根据第二天线端口能够确定第一同步信号。
在一些实施例中，第一同步信号与第二天线端口之间的关联关系是通过第三关联关系指示的。或者说，第三关联关系可以用于指示同步信号与天线端口之间的关联关系，比如指示不同的同步信号分别关联的天线端口。
也就是说，在本申请实施例中，不同的天线端口可以关联到不同的同步信号。该不同的天线端口与不同的同步信号之间的关联关系可以通过第三关联关系来指示。下面对第三关联关系进行介绍。
在一些实施例中，第三关联关系可以通过指示同步信号的索引与天线端口的标识来指示同步信号与天线端口之间的关联关系。例如，第三关联关系可以包括：SSB 0与天线端口0关联，SSB 1与天线端口1关联等。
在一些实施例中，第三关联关系中，一个同步信号可以关联一个天线端口，也就是说，同步信号与天线端口之间可以是一一对应的关系。例如，SSB 0与天线端口0关联，SSB 1与天线端口1关联。
在一些实施例中，第三关联关系中，一个同步信号可以关联多个天线端口，也就是说，同步信号与天线端口之间可以是一对多的对应关系。例如，SSB 0与天线端口0和天线端口1均关联。
在一些实施例中，第三关联关系中，多个同步信号可以关联一个天线端口，也就是说，同步信号与天线端口之间可以是多对一的对应关系。例如，SSB 0和SSB 1均与天线端口0关联。
在一些实施例中，第三关联关系可以包括以下中的一种或多种：一个同步信号与一个天线端口的对应关系；一个同步信号与多个天线端口的对应关系；多个同步信号与一个天线端口的对应关系；多个同步信号与多个天线端口的一一对应关系；一个同步信号索引与一个天线端口标识的对应关系；一个同步信号索引与多个天线端口标识的对应关系；多个同步信号索引与一个天线端口标识的对应关系；以及多个同步信号索引与多个天线端口标识的一一对应关系。
在一些实施例中，第三关联关系可以是预定义的或预配置的。例如，第三关联关系可以是协议预定义的。在一些实施例中，第三关联关系可以是网络设备通过高层信令配置的。
在一些实施例中，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括，终端设备根据第一同步信号确定第二天线端口的标识。例如，终端设备根据第一同步信号和第三关联关系确定第一同步信号关联的第二天线端口的标识。
也就是说，在一些实施例中，第二天线端口的标识是根据第一同步信号确定的。本申请实施例对根据第一同步信号确定第二天线端口的标识的实现方式不作具体限定。例如，可以通过第一同步信号显式或隐式确定第二天线端口的标识。
作为一种实现方式，第二天线端口的标识可以是根据以下信息中的一种或多种确定的：第一同步信号的索引，第一同步信号对应的同步信号序列，以及第一同步信号关联的下行信道中传输的信息。关于如何利用上述信息确定第二天线端口的标识的具体介绍，可以参见前文，为了简洁，此处不再赘述。
前文提及，第一同步信号是网络设备向终端设备发送的，下面对第一同步信号的发送进行介绍。
在一些实施例中，该第一同步信号可以是根据第三关联关系发送的。这种情况下，终端设备根据第一同步信号确定第一同步信号关联的至少一个天线端口可以包括：终端设备根据第一同步信号和第三关联关系确定第二天线端口。
在一些实施例中，第二天线端口不发送与第二天线端口不具有关联关系的同步信号。例如，第一同步信号与第二天线端口具有一一对应的关联关系，则第二天线端口不发送第一同步信号之外的同步信号。
在一些实施例中，第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，第一同步信号与第二随机接入传输机会集合之间具有第四关联关系。其中，第二随机接入传输机会集合中的至少一个随机接入传输机会用于发送随机接入信号(如preamble)。
也就是说，在本申请实施例中，不同的天线端口可以关联到不同的随机接入传输机会集合。该不同的天线端口与不同的随机接入传输机会集合之间的关联关系可以通过第四关联关系来指示。或者，在本申请实施例中，不同的同步信号可以关联到不同的随机接入传输机会集合。该不同的同步信号与不同的 随机接入传输机会集合之间的关联关系可以通过第四关联关系来指示。下面对第四关联关系进行介绍。
在一些实施例中，天线端口与随机接入传输机会集合之间的关联关系是直接指示的，例如，第四关联关系直接用于指示天线端口与随机接入传输机会集合之间的关联关系。在一些实施例中，天线端口与随机接入传输机会集合之间的关联关系是间接指示的，例如，第四关联关系通过指示天线端口与同步信号的之间的关联关系、以及同步信号与随机接入传输机会集合之间的关联关系来间接指示天线端口与随机接入传输机会集合之间的关联关系。作为一个示例，天线端口0关联SSB 0，SSB 0关联随机接入传输机会集合0，因此，天线端口0关联随机接入传输机会集合0。作为另一个示例，天线端口1关联SSB 1，SSB 1关联随机接入传输机会集合1，因此，天线端口1关联随机接入传输机会集合1。
在一些实施例中，第四关联关系可以通过指示天线端口的标识与随机接入传输机会集合的标识来指示天线端口与随机接入传输机会集合之间的关联关系。例如，第四关联关系可以包括：天线端口0与随机接入传输机会集合0关联，天线端口1与随机接入传输机会集合1关联等。
在一些实施例中，第四关联关系中，一个天线端口可以关联一个随机接入传输机会集合，也就是说，天线端口与随机接入传输机会集合之间可以是一一对应的关系。例如，天线端口0与随机接入传输机会集合0关联，天线端口1与随机接入传输机会集合1关联。
在一些实施例中，第四关联关系中，一个天线端口可以关联多个随机接入传输机会集合，也就是说，天线端口与随机接入传输机会集合之间可以是一对多的对应关系。例如，天线端口0与随机接入传输机会集合0和随机接入传输机会集合1均关联。
在一些实施例中，第四关联关系中，多个天线端口可以关联一个随机接入传输机会集合，也就是说，天线端口与随机接入传输机会集合之间可以是多对一的对应关系。例如，天线端口0和天线端口1均与随机接入传输机会集合0关联。
在一些实施例中，第四关联关系可以通过指示同步信号的索引与随机接入传输机会集合的标识来指示同步信号与随机接入传输机会集合之间的关联关系。例如，第四关联关系可以包括：SSB 0与随机接入传输机会集合0关联，SSB 1与随机接入传输机会集合1关联等。
在一些实施例中，第四关联关系中，一个同步信号可以关联一个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是一一对应的关系。例如，SSB 0与随机接入传输机会集合0关联，SSB 1与随机接入传输机会集合1关联。
在一些实施例中，第四关联关系中，一个同步信号可以关联多个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是一对多的对应关系。例如，SSB 0与随机接入传输机会集合0和随机接入传输机会集合1均关联。
在一些实施例中，第四关联关系中，多个同步信号可以关联一个随机接入传输机会集合，也就是说，同步信号与随机接入传输机会集合之间可以是多对一的对应关系。例如，SSB 0和SSB 1均与随机接入传输机会集合0关联。
在一些实施例中，第四关联关系可以包括以下中的一种或多种，一个天线端口与一个随机接入传输机会集合的对应关系；一个天线端口与多个随机接入传输机会集合的对应关系；多个天线端口与一个随机接入传输机会集合的对应关系；多个天线端口与多个随机接入传输机会集合的一一对应关系；一个天线端口标识与一个随机接入传输机会集合标识的对应关系；一个天线端口标识与多个随机接入传输机会集合标识的对应关系；多个天线端口标识与一个随机接入传输机会集合标识的对应关系；多个天线端口标识与多个随机接入传输机会集合标识的一一对应关系；一个同步信号与一个随机接入传输机会集合的对应关系；一个同步信号与多个随机接入传输机会集合的对应关系；多个同步信号与一个随机接入传输机会集合的对应关系；多个同步信号与多个随机接入传输机会集合的一一对应关系；一个同步信号索引与一个随机接入传输机会集合标识的对应关系；一个同步信号索引与多个随机接入传输机会集合标识的对应关系；多个同步信号索引与一个随机接入传输机会集合标识的对应关系；以及多个同步信号索引与多个随机接入传输机会集合标识的一一对应关系。
在一些实施例中，第四关联关系可以是预定义的或预配置的。例如，第四关联关系可以是协议预定义的。在一些实施例中，第四关联关系可以是网络设备通过高层信令配置的。
在一些实施例中，终端设备可以通过第二随机接入传输机会集合中的至少一个随机接入传输机会发送随机接入信号，该至少一个随机接入传输机会是根据第四关联关系确定的。或者说，终端设备可以根据第四关联关系确定第二随机接入传输机会集合中的至少一个随机接入传输机会，并通过该至少一个随机接入传输机会发送随机接入信号。
在一些实施例中，终端设备可以向第二天线端口发送随机接入信号。或者说，第二天线端口可以用于检测与第二天线端口关联的第二随机接入传输机会集合。例如，第二天线端口可以用于监听与第二天线端口关联的第二随机接入传输机会集合中的资源上是否有随机接入信号；和/或，第二天线端口可以 用于接收与第二天线端口关联的第二随机接入传输机会集合中的资源上传输的随机接入信号。
在一些实施例中，第二天线端口可以用于检测与第二天线端口关联的第二随机接入传输机会集合，且第二天线端口不检测与第二天线端口不具有关联关系的随机接入传输机会集合。
在一些实施例中，终端设备向第二天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的发送空间滤波器与该第二天线端口的接收空间滤波器部分重叠或全部重叠。
在一些实施例中，终端设备向第二天线端口发送随机接入信号可以是指，终端设备发送随机接入信号的资源与该第二天线端口具有关联关系。
在一些实施例中，终端设备向第二天线端口发送随机接入信号可以是指，终端设备发送随机接入信号使用的发送波束方向与该第二天线端口的接收波束方向具有关联关系。
在一些实施例中，终端设备可以通过第二随机接入传输机会集合中的至少一个随机接入传输机会发送随机接入信号可以包括，终端设备通过第二随机接入传输机会集合中的至少一个随机接入传输机会向第二天线端口发送随机接入信号。
在一些实施例中，终端设备在发送随机接入信号之后，还可以检测随机接入响应，该随机接入响应是针对该终端设备发送的随机接入信号的响应。
本申请对发送随机接入响应的天线端口不做具体限定。例如，随机接入响应是通过第二天线端口发送的。
在一些实施例中，第二天线端口可以用于传输第二指示信息，该第二指示信息可以用于确定第二天线端口和/或传输的同步信号。下面对第二指示信息进行详细介绍。
在一些实施例中，第二指示信息可以用于确定以下信息中的至少一项：第二天线端口的标识；第二天线端口所处的通信网络中传输的同步信号的索引；第二天线端口关联的同步信号的索引；第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；第二天线端口关联的准共址关系的类型；第二天线端口与第二随机接入传输机会集合之间的关联关系。
在一些实施例中，第二指示信息用于确定传输的同步信号可以包括，第二指示信息用于指示第二天线端口关联的同步信号，以确定第二天线端口传输的同步信号。例如，第二天线端口可以发送第二指示信息，该第二指示信息通过指示第二天线端口关联的同步信号为SSB 0来指示传输的同步信号为SSB 0。
在一些实施例中，第二指示信息用于确定传输的同步信号可以包括，第二指示信息用于指示第二天线端口所处的通信网络中传输的同步信号。例如，第二天线端口所处的通信网络中包括第一天线端口和第二天线端口，第一天线端口关联SSB 0，第二天线端口关联SSB 1，第二天线端口可以发送第二指示信息，该第二指示信息指示传输的同步信号为SSB 0和SSB 1。
在一些实施例中，第二天线端口在调度数据传输时，可以对用于同步信号传输的资源进行速率匹配。
作为一种实现方式，第二天线端口在调度数据传输时，可以对第二天线端口关联的同步信号传输的资源进行速率匹配。例如，第二天线端口关联SSB 0，第二天线端口调度第一时频资源进行数据传输，SSB 0传输占用第二时频资源，若该第一时频资源与该第二时频资源在时域上和/或频域上至少部分重叠，该重叠的部分不用于数据传输。
作为另一种实现方式，第二天线端口在调度数据传输时，可以对第二天线端口所处的通信网络中传输的同步信号的资源进行速率匹配。例如，第二天线端口所处的通信网络中传输的SSB包括SSB 0和SSB 1，第二天线端口调度第一时频资源进行数据传输，SSB 0和SSB 1传输占用第三时频资源，若该第一时频资源与该第三时频资源在时域上和/或频域上至少部分重叠，该重叠的部分不用于数据传输。
在一些实施例中，终端设备可以向网络设备发送(上报)选择的同步信号和/或天线端口。或者说，终端设备可以向网络设备发送(上报)检测到的同步信号和/或天线端口。
作为一种实现方式，终端设备可以向网络设备发送第三指示信息，该第三指示信息用于确定终端设备选择的M个天线端口和/或终端设备选择的N个同步信号，其中，N，M为正整数。
在一些实施例中，第三指示信息用于确定终端设备选择的M个天线端口，包括：第三指示信息用于指示终端设备选择的M个天线端口的标识；其中，M值为预定义或预配置的，或者，M值是根据第三门限值确定的，该第三门限值为预定义或预配置的。
在一些实施例中，终端设备选择的M个天线端口可以是信号强度从强到弱的M个天线端口，即终端设备选择的M个天线端口可以是该终端设备关联的多个天线端口中的信号强度最强的M个天线端口。
在一些实施例中，终端设备选择的M个天线端口可以是大于或等于第三门限值的M个天线端口。也就是说，M的数量是根据第三门限值确定的。
在一些实施例中，第三门限值可以是用于指示信号强度的值，例如，该门限值可以是信号强度大于 -50dBm等。
在一些实施例中，如果终端设备确定的天线端口的数量小于M，则可以指示比特为预设值或填充值。
在一些实施例中，第三指示信息用于确定终端设备选择的N个同步信号，包括：第三指示信息用于指示终端设备选择的N个同步信号的索引；其中，N值为预定义或预配置的，或者，N值是根据第四门限值确定的，该第四门限值为预定义或预配置的。
在一些实施例中，终端设备选择的N个同步信号可以是接收信号强度从强到弱的N个同步信号，即终端设备选择的N个同步信号可以是该终端设备检测到的信号强度最强的N个同步信号。
在一些实施例中，终端设备选择的N个同步信号可以是大于或等于第四门限值的N个同步信号。也就是说，N的数量是根据第四门限值确定的。
在一些实施例中，第四门限值可以是用于指示接收信号强度的值，例如，该门限值可以是接收信号强度大于-50dBm等。
在一些实施例中，如果终端设备确定的同步信号的数量小于N，则可以指示比特为预设值或填充值。
本申请实施例对第三指示信息的承载方式不做具体限定，示例性地，第三指示信息可以承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
作为一个示例，第三指示信息可以承载于preamble中。作为另一个示例，第三指示信息可以承载于Msg 3中。作为又一个示例，第三指示信息可以承载于随机接入过程完成后的Msg 5中。作为又一个示例，第三指示信息可以承载于随机接入过程完成后的上行调度。作为又一个示例，第三指示信息可以承载于两步随机接入过程中的上行信息等。
为了便于理解，下面以同步信号为NR系统中的SSB，随机接入传输机会集合为NR系统中的RO集合为例，结合图10所示的网络系统架构，对实施例二中的初始接入过程进行说明。
如图10所示，通信网络中包括14个AP，该14个AP分别传输SSB 0到SSB 13，其中每个AP均只传输与该AP具有关联关系的SSB，例如第一AP只传输SSB 0，第二AP只传输SSB 1，等等，以此类推。可选地，SSB 0到SSB 13在无线帧中的位置与NR系统中SSB 0到SSB 13在无线帧中的位置相同。可选地，AP的标识根据SSB索引来确定，例如与SSB 0关联的第一AP的标识为0，与SSB 1关联的第二AP的标识为1。
第一AP关联第一RO集合，第二AP关联第二RO集合，等等，以此类推。
终端设备在初始接入过程中，通过预定义的SSB可能的时频位置，尝试搜索SSB。在图10所示的情况中，终端设备可能检测到SSB 6，SSB 7，SSB 11，SSB 12，并通过检测到的这些SSB中的至少一个SSB获得时间和频率同步、无线帧定时以及确定对应AP的标识(即AP 6，AP 7，AP 11，AP 12)；相应的，终端设备可以通过这些AP关联的至少一个RO集合中的RO向网络设备发起随机接入。例如，终端设备可以基于信号强度选择AP 12关联的第十二RO集合向网络设备发起随机接入；或者，终端设备可以基于信号强度门限选择多个AP关联的多个RO集合分别向网络设备发起随机接入，例如终端设备可以基于信号强度门限选择AP 12和AP 7关联的第十二RO集合和第七RO集合分别向网络设备发起随机接入。
下面以终端设备选择AP 12关联的第十二RO集合向网络设备发起随机接入为例进行说明。
在四步随机接入过程中，终端设备发起随机接入包括发送随机接入前导序列。
当AP 12检测到RO上传输的随机接入前导序列后，网络设备调度该AP 12向终端设备发送该随机接入前导序列对应的RAR；终端设备在接收到RAR后，向该主AP发送消息3；在收到消息3后，网络设备调度该AP 12向终端设备发送消息4，从而完成随机接入。可选地，终端设备通过以下信息中的至少一种，向网络设备上报可用于该终端设备通信的AP的标识：随机接入前导序列、消息3、随机接入过程完成后的消息5、随机接入过程完成后的上行调度。
在两步随机接入过程中，终端设备发起随机接入包括发送随机接入前导序列和上行信息。
当AP 12检测到RO上传输的随机接入前导序列和上行信息后，网络设备调度该AP 12向终端设备发送随机接入成功对应的RAR，从而完成随机接入。当AP 12检测到RO上传输的随机接入前导序列但没有检测到上行信息时，网络设备调度该AP 12向终端设备发送该随机接入前导序列对应的RAR，回退到四步随机接入过程。可选地，终端设备通过以下信息中的至少一种，向网络设备上报可用于该终端设备通信的AP的标识：随机接入前导序列、上行信息、消息3、随机接入过程完成后的消息5、随机接入过程完成后的上行调度。
可选地，终端设备可以上报AP 6，AP7，AP 11和AP 12；或者，终端设备可以根据信号强度，上报最优的M个AP，M为正整数，其中，M是预定义的或网络设备配置的。
上文结合图1至图12，详细描述了本申请的方法实施例，下面结合图13至图15，详细描述本申请的装置实施例。应理解，方法实施例的描述与装置实施例的描述相互对应，因此，未详细描述的部分可以参见前面方法实施例。
图13是本申请实施例提供的终端设备的结构示意图。图13所示的终端设备1300可以包括第一检测模块1310和第一确定模块1320。
第一检测模块1310可以用于检测网络设备发送的同步信号。
第一确定模块1320可以用于在所述终端设备检测到第一同步信号后，根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口。
可选地，所述至少一个天线端口为第一天线端口集合中的天线端口，所述第一同步信号与所述第一天线端口集合关联。
可选地，所述第一同步信号是根据第一关联关系发送的，所述第一确定模块进一步用于：根据所述第一同步信号和所述第一关联关系确定所述第一天线端口集合。
可选地，所述第一关联关系包括以下中的至少一种：一个同步信号与一个天线端口集合的对应关系；一个同步信号与多个天线端口集合的对应关系；多个同步信号与一个天线端口集合的对应关系；多个同步信号与多个天线端口集合的一一对应关系；一个同步信号索引与一个天线端口集合标识的对应关系；一个同步信号索引与多个天线端口集合标识的对应关系；多个同步信号索引与一个天线端口集合标识的对应关系；多个同步信号索引与多个天线端口集合标识的一一对应关系。
可选地，所述第一确定模块进一步用于：根据所述第一同步信号确定所述第一天线端口集合的标识；或者，根据所述第一同步信号确定所述第一天线端口集合中的至少一个天线端口的标识。
可选地，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：所述第一同步信号的索引；所述第一同步信号对应的同步信号序列；所述第一同步信号关联的下行信道中传输的信息。
可选地，所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
可选地，所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
可选地，所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述终端设备还包括：第二确定模块，用于根据所述第二关联关系确定所述第一随机接入传输机会集合中的至少一个随机接入传输机会；第一发送模块，用于通过所述至少一个随机接入传输机会发送随机接入信号。
可选地，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
可选地，所述第二关联关系是预定义的或预配置的。
可选地，所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号，包括以下情况中的至少一种：所述终端设备向所述第一天线端口集合中发送所述第一同步信号的天线端口发送随机接入信号；或者，所述终端设备向所述第一天线端口集合中的部分天线端口发送随机接入信号；或者，所述终端设备向所述第一天线端口集合中的全部天线端口发送随机接入信号；或者，所述终端设备向所述第一天线端口集合中的主天线端口发送随机接入信号；或者，所述终端设备向所述第一天线端口集合中的辅天线端口发送随机接入信号。
可选地，所述终端设备还包括第二检测模块，所述第二检测模块用于：检测通过所述第一天线端口集合中的至少一个天线端口发送的随机接入响应；或者，所述第一天线端口集合中包括主天线端口，检测通过所述主天线端口发送的随机接入响应；其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
可选地，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：所述第一天线端口集合的标识；所述第一天线端口集合包括的天线端口的标识；所述第一天线端口集合中的主天线端口的标识；所述第一天线端口集合中的辅天线端口的标识；所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；所述第一天线端口集合中检测随机接入信号的天线端口的标识；所述第一天线端口集合中发送随机接入响应的天线端口的标识；所述 第一天线端口集合所处的通信网络中传输的同步信号的索引；所述第一天线端口集合关联的同步信号的索引；所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；所述第一天线端口集合关联的准共址关系的类型；所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
可选地，所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传输的；或者所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
可选地，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
可选地，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
可选地，所述第一同步信号是根据第三关联关系发送的，所述第一确定模块进一步用于：根据所述第一同步信号和所述第三关联关系确定所述第二天线端口。
可选地，所述第三关联关系包括以下中的至少一种：一个同步信号与一个天线端口的对应关系；一个同步信号与多个天线端口的对应关系；多个同步信号与一个天线端口的对应关系；多个同步信号与多个天线端口的一一对应关系；一个同步信号索引与一个天线端口标识的对应关系；一个同步信号索引与多个天线端口标识的对应关系；多个同步信号索引与一个天线端口标识的对应关系；多个同步信号索引与多个天线端口标识的一一对应关系。
可选地，所述第一确定模块进一步用于：根据所述第一同步信号确定所述第二天线端口的标识。
可选地，所述第二天线端口的标识是根据以下信息中的一种或多种确定的：所述第一同步信号的索引；所述第一同步信号对应的同步信号序列；所述第一同步信号关联的下行信道中传输的信息。
可选地，所述第一同步信号是通过所述第二天线端口发送的；和/或，所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
可选地，所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述终端设备还包括：第三确定模块，用于根据所述第四关联关系确定所述第二随机接入传输机会集合中的至少一个随机接入传输机会，并通过所述至少一个随机接入传输机会发送随机接入信号；和/或，第三检测模块，用于检测通过所述第二天线端口发送的随机接入响应；其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
可选地，所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号，包括：所述终端设备通过所述至少一个随机接入传输机会向所述第二天线端口发送随机接入信号。
可选地，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
可选地，所述第四关联关系是预定义的或预配置的。
可选地，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：所述第二天线端口的标识；所述第二天线端口所处的通信网络中传输的同步信号的索引；所述第二天线端口关联的同步信号的索引；所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；所述第二天线端口关联的准共址关系的类型；所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
可选地，所述终端设备还包括：第二发送模块，用于向所述网络设备发送第三指示信息，所述第三指示信息用于确定所述终端设备选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
可选地，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
可选地，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
可选地，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
可选地，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
图14是本申请实施例提供的网络设备的结构示意图。图14所示的网络设备1400可以包括第一发送模块1410。
第一发送模块1410可以用于发送同步信号；其中，所述同步信号包括第一同步信号，所述第一同步信号用于确定所述第一同步信号关联的至少一个天线端口。
可选地，所述至少一个天线端口为第一天线端口集合中的天线端口，所述第一同步信号与所述第一天线端口集合关联。
可选地，所述第一同步信号是根据第一关联关系发送的，所述第一同步信号和所述第一关联关系用于确定所述第一天线端口集合。
可选地，所述第一关联关系包括以下中的至少一种：一个同步信号与一个天线端口集合的对应关系；一个同步信号与多个天线端口集合的对应关系；多个同步信号与一个天线端口集合的对应关系；多个同步信号与多个天线端口集合的一一对应关系；一个同步信号索引与一个天线端口集合标识的对应关系；一个同步信号索引与多个天线端口集合标识的对应关系；多个同步信号索引与一个天线端口集合标识的对应关系；多个同步信号索引与多个天线端口集合标识的一一对应关系。
可选地，所述第一同步信号用于确定所述第一天线端口集合的标识；或者，所述第一同步信号用于确定所述第一天线端口集合中的至少一个天线端口的标识。
可选地，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：所述第一同步信号的索引；所述第一同步信号对应的同步信号序列；所述第一同步信号关联的下行信道中传输的信息。
可选地，所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
可选地，所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
可选地，所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述网络设备还包括：第一接收模块1420，用于通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号；其中，所述至少一个随机接入传输机会是根据所述第二关联关系确定的。
可选地，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
可选地，所述第二关联关系是预定义的或预配置的。
可选地，所述网络设备通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号，包括以下情况中的至少一种：所述网络设备通过所述第一天线端口集合中发送所述第一同步信号的天线端口接收随机接入信号；或者，所述网络设备通过所述第一天线端口集合中的部分天线端口接收随机接入信号；或者，所述网络设备通过所述第一天线端口集合中的全部天线端口接收随机接入信号；或者，所述网络设备通过所述第一天线端口集合中的主天线端口接收随机接入信号；或者，所述网络设备通过所述第一天线端口集合中的辅天线端口接收随机接入信号。
可选地，所述网络设备还包括第二发送模块，所述第二发送模块用于：通过所述第一天线端口集合中的至少一个天线端口发送随机接入响应；或者，所述第一天线端口集合中包括主天线端口，通过所述主天线端口发送随机接入响应；其中，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
可选地，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：所述第一天线端口集合的标识；所述第一天线端口集合包括的天线端口的标识；所述第一天线端口集合中的主天线端口的标识；所述第一天线端口集合中的辅天线端口的标识；所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；所述第一天线端口集合中检测随机接入信号的天线端口的标识；所述第一天线端口集合中发送随机接入响应的天线端口的标识；所述第一天线端口集合所处的通信网络中传输的同步信号的索引；所述第一天线端口集合关联的同步信号的索引；所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；所述第一天线端口集合关联的准共址关系的类型；所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
可选地，所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传 输的；或者所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
可选地，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
可选地，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
可选地，所述第一同步信号是根据第三关联关系发送的，所述第一同步信号和所述第三关联关系用于确定所述第二天线端口。
可选地，所述第三关联关系包括以下中的至少一种：一个同步信号与一个天线端口的对应关系；一个同步信号与多个天线端口的对应关系；多个同步信号与一个天线端口的对应关系；多个同步信号与多个天线端口的一一对应关系；一个同步信号索引与一个天线端口标识的对应关系；一个同步信号索引与多个天线端口标识的对应关系；多个同步信号索引与一个天线端口标识的对应关系；多个同步信号索引与多个天线端口标识的一一对应关系。
可选地，所述第一同步信号用于确定所述第二天线端口的标识。
可选地，所述第二天线端口的标识是根据以下信息中的一种或多种确定的：所述第一同步信号的索引；所述第一同步信号对应的同步信号序列；所述第一同步信号关联的下行信道中传输的信息。
可选地，所述第一同步信号是通过所述第二天线端口发送的；和/或，所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
可选地，所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述网络设备还包括：第二接收模块，用于接收随机接入信号；和/或第三发送模块，用于通过所述第二天线端口发送随机接入响应；其中，所述随机接入信号是通过所述第二随机接入传输机会集合中的至少一个随机接入传输机会发送的，所述至少一个随机接入传输机会是根据所述第四关联关系确定的，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
可选地，所述随机接入信号是通过所述至少一个随机接入传输机会向所述第二天线端口发送的。
可选地，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
可选地，所述第四关联关系是预定义的或预配置的。
可选地，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：所述第二天线端口的标识；所述第二天线端口所处的通信网络中传输的同步信号的索引；所述第二天线端口关联的同步信号的索引；所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；所述第二天线端口关联的准共址关系的类型；所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
可选地，所述网络设备还包括：第三接收模块，用于接收终端设备发送的第三指示信息，所述第三指示信息用于确定所述终端设备选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
可选地，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
可选地，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
可选地，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
可选地，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
图15是本申请实施例的通信装置的示意性结构图。图15中的虚线表示该单元或模块为可选的。该装置1500可用于实现上述方法实施例中描述的方法。装置1500可以是芯片、终端设备或网络设备。
装置1500可以包括一个或多个处理器1510。该处理器1510可支持装置1500实现前文方法实施例所描述的方法。该处理器1510可以是通用处理器或者专用处理器。例如，该处理器可以为中央处理单元(central processing unit，CPU)。或者，该处理器还可以是其他通用处理器、数字信号处理器(digital signal processor，DSP)、专用集成电路(application specific integrated circuit，ASIC)、现成可编程门 阵列(field programmable gate array，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。
装置1500还可以包括一个或多个存储器1520。存储器1520上存储有程序，该程序可以被处理器1510执行，使得处理器1510执行前文方法实施例所描述的方法。存储器1520可以独立于处理器1510也可以集成在处理器1510中。
装置1500还可以包括收发器1530。处理器1510可以通过收发器1530与其他设备或芯片进行通信。例如，处理器1510可以通过收发器1530与其他设备或芯片进行数据收发。
本申请实施例还提供一种计算机可读存储介质，用于存储程序。该计算机可读存储介质可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序产品。该计算机程序产品包括程序。该计算机程序产品可应用于本申请实施例提供的终端或网络设备中，并且该程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
本申请实施例还提供一种计算机程序。该计算机程序可应用于本申请实施例提供的终端或网络设备中，并且该计算机程序使得计算机执行本申请各个实施例中的由终端或网络设备执行的方法。
应理解，本申请中术语“系统”和“网络”可以被可互换使用。另外，本申请使用的术语仅用于对本申请的具体实施例进行解释，而非旨在限定本申请。本申请的说明书和权利要求书及所述附图中的术语“第一”、“第二”、“第三”和“第四”等是用于区别不同对象，而不是用于描述特定顺序。此外，术语“包括”和“具有”以及它们任何变形，意图在于覆盖不排他的包含。
在本申请的实施例中，提到的“指示”可以是直接指示，也可以是间接指示，还可以是表示具有关联关系。举例说明，A指示B，可以表示A直接指示B，例如B可以通过A获取；也可以表示A间接指示B，例如A指示C，B可以通过C获取；还可以表示A和B之间具有关联关系。
在本申请实施例中，“与A相应的B”表示B与A相关联，根据A可以确定B。但还应理解，根据A确定B并不意味着仅仅根据A确定B，还可以根据A和/或其它信息确定B。
在本申请实施例中，术语“对应”可表示两者之间具有直接对应或间接对应的关系，也可以表示两者之间具有关联关系，也可以是指示与被指示、配置与被配置等关系。
本申请的实施例，提到的“包括”可以指直接包括，也可以指间接包括。可选地，可以将本申请实施例中提到的“包括”替换为“指示”或“用于确定”。例如，A包括B，可以替换为A指示B，或A用于确定B。
本申请实施例中，“预定义”或“预配置”可以通过在设备(例如，包括终端设备和网络设备)中预先保存相应的代码、表格或其他可用于指示相关信息的方式来实现，本申请对于其具体的实现方式不做限定。比如预定义可以是指协议中定义的。
本申请实施例中，所述“协议”可以指通信领域的标准协议，例如可以包括LTE协议、NR协议以及应用于未来的通信系统中的相关协议，本申请对此不做限定。
本申请实施例中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本文中字符“/”，一般表示前后关联对象是一种“或”的关系。
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。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统、装置和方法，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，所述单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一点，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外，在本申请各个实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或 功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据中心通过有线(例如同轴电缆、光纤、数字用户线(digital subscriber line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够读取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，数字通用光盘(digital video disc，DVD))或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
以上所述，仅为本申请的具体实施方式，但本申请的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本申请揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本申请的保护范围之内。因此，本申请的保护范围应以所述权利要求的保护范围为准。

Claims (135)

  1. 一种无线通信的方法，其特征在于，包括：
    终端设备检测网络设备发送的同步信号；
    在所述终端设备检测到第一同步信号后，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口。
  2. 根据权利要求1所述的方法，其特征在于，所述至少一个天线端口为第一天线端口集合中的天线端口，所述第一同步信号与所述第一天线端口集合关联。
  3. 根据权利要求2所述的方法，其特征在于，所述第一同步信号是根据第一关联关系发送的，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口，包括：
    所述终端设备根据所述第一同步信号和所述第一关联关系确定所述第一天线端口集合。
  4. 根据权利要求3所述的方法，其特征在于，所述第一关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口集合的对应关系；
    一个同步信号与多个天线端口集合的对应关系；
    多个同步信号与一个天线端口集合的对应关系；
    多个同步信号与多个天线端口集合的一一对应关系；
    一个同步信号索引与一个天线端口集合标识的对应关系；
    一个同步信号索引与多个天线端口集合标识的对应关系；
    多个同步信号索引与一个天线端口集合标识的对应关系；
    多个同步信号索引与多个天线端口集合标识的一一对应关系。
  5. 根据权利要求2-4中任一项所述的方法，其特征在于，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口，包括：
    所述终端设备根据所述第一同步信号确定所述第一天线端口集合的标识；或者，
    所述终端设备根据所述第一同步信号确定所述第一天线端口集合中的至少一个天线端口的标识。
  6. 根据权利要求5所述的方法，其特征在于，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  7. 根据权利要求2-6中任一项所述的方法，其特征在于，
    所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，
    所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，
    所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
  8. 根据权利要求2-7中任一项所述的方法，其特征在于，
    所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
  9. 根据权利要求2-8中任一项所述的方法，其特征在于，
    所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述方法还包括：
    所述终端设备根据所述第二关联关系确定所述第一随机接入传输机会集合中的至少一个随机接入传输机会；
    所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号。
  10. 根据权利要求9所述的方法，其特征在于，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
  11. 根据权利要求9或10所述的方法，其特征在于，所述第二关联关系是预定义的或预配置的。
  12. 根据权利要求9-11中任一项所述的方法，其特征在于，所述终端设备通过所述至少一个随机 接入传输机会发送随机接入信号，包括以下情况中的至少一种：
    所述终端设备向所述第一天线端口集合中发送所述第一同步信号的天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的部分天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的全部天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的主天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的辅天线端口发送随机接入信号。
  13. 根据权利要求9-12中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备检测通过所述第一天线端口集合中的至少一个天线端口发送的随机接入响应；或者，
    所述第一天线端口集合中包括主天线端口，所述终端设备检测通过所述主天线端口发送的随机接入响应；
    其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
  14. 根据权利要求2-13中任一项所述的方法，其特征在于，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：
    所述第一天线端口集合的标识；
    所述第一天线端口集合包括的天线端口的标识；
    所述第一天线端口集合中的主天线端口的标识；
    所述第一天线端口集合中的辅天线端口的标识；
    所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；
    所述第一天线端口集合中检测随机接入信号的天线端口的标识；
    所述第一天线端口集合中发送随机接入响应的天线端口的标识；
    所述第一天线端口集合所处的通信网络中传输的同步信号的索引；
    所述第一天线端口集合关联的同步信号的索引；
    所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第一天线端口集合关联的准共址关系的类型；
    所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
  15. 根据权利要求14所述的方法，其特征在于，
    所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
  16. 根据权利要求2-15中任一项所述的方法，其特征在于，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
  17. 根据权利要求1所述的方法，其特征在于，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
  18. 根据权利要求17所述的方法，其特征在于，所述第一同步信号是根据第三关联关系发送的，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口，包括：
    所述终端设备根据所述第一同步信号和所述第三关联关系确定所述第二天线端口。
  19. 根据权利要求18所述的方法，其特征在于，所述第三关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口的对应关系；
    一个同步信号与多个天线端口的对应关系；
    多个同步信号与一个天线端口的对应关系；
    多个同步信号与多个天线端口的一一对应关系；
    一个同步信号索引与一个天线端口标识的对应关系；
    一个同步信号索引与多个天线端口标识的对应关系；
    多个同步信号索引与一个天线端口标识的对应关系；
    多个同步信号索引与多个天线端口标识的一一对应关系。
  20. 根据权利要求17-19中任一项所述的方法，其特征在于，所述终端设备根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口，包括：
    所述终端设备根据所述第一同步信号确定所述第二天线端口的标识。
  21. 根据权利要求20所述的方法，其特征在于，所述第二天线端口的标识是根据以下信息中的一 种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  22. 根据权利要求17-21中任一项所述的方法，其特征在于，
    所述第一同步信号是通过所述第二天线端口发送的；和/或，
    所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
  23. 根据权利要求17-22中任一项所述的方法，其特征在于，
    所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述方法还包括：
    所述终端设备根据所述第四关联关系确定所述第二随机接入传输机会集合中的至少一个随机接入传输机会，并通过所述至少一个随机接入传输机会发送随机接入信号；和/或，
    所述终端设备检测通过所述第二天线端口发送的随机接入响应；
    其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
  24. 根据权利要求23所述的方法，其特征在于，所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号，包括：
    所述终端设备通过所述至少一个随机接入传输机会向所述第二天线端口发送随机接入信号。
  25. 根据权利要求23或24所述的方法，其特征在于，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
  26. 根据权利要求23-25中任一项所述的方法，其特征在于，所述第四关联关系是预定义的或预配置的。
  27. 根据权利要求17-26中任一项所述的方法，其特征在于，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：
    所述第二天线端口的标识；
    所述第二天线端口所处的通信网络中传输的同步信号的索引；
    所述第二天线端口关联的同步信号的索引；
    所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第二天线端口关联的准共址关系的类型；
    所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
  28. 根据权利要求17-27中任一项所述的方法，其特征在于，所述方法还包括：
    所述终端设备向所述网络设备发送第三指示信息，所述第三指示信息用于确定所述终端设备选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
  29. 根据权利要求28所述的方法，其特征在于，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：
    所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；
    其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
  30. 根据权利要求28或29所述的方法，其特征在于，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：
    所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；
    其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
  31. 根据权利要求28-30中任一项所述的方法，其特征在于，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
  32. 根据权利要求1-31中任一项所述的方法，其特征在于，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
  33. 一种无线通信的方法，其特征在于，包括：
    网络设备发送同步信号；
    其中，所述同步信号包括第一同步信号，所述第一同步信号用于确定所述第一同步信号关联的至少一个天线端口。
  34. 根据权利要求33所述的方法，其特征在于，所述至少一个天线端口为第一天线端口集合中的 天线端口，所述第一同步信号与所述第一天线端口集合关联。
  35. 根据权利要求34所述的方法，其特征在于，所述第一同步信号是根据第一关联关系发送的，所述第一同步信号和所述第一关联关系用于确定所述第一天线端口集合。
  36. 根据权利要求35所述的方法，其特征在于，所述第一关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口集合的对应关系；
    一个同步信号与多个天线端口集合的对应关系；
    多个同步信号与一个天线端口集合的对应关系；
    多个同步信号与多个天线端口集合的一一对应关系；
    一个同步信号索引与一个天线端口集合标识的对应关系；
    一个同步信号索引与多个天线端口集合标识的对应关系；
    多个同步信号索引与一个天线端口集合标识的对应关系；
    多个同步信号索引与多个天线端口集合标识的一一对应关系。
  37. 根据权利要求34-36中任一项所述的方法，其特征在于，所述第一同步信号用于确定所述第一天线端口集合的标识；或者，所述第一同步信号用于确定所述第一天线端口集合中的至少一个天线端口的标识。
  38. 根据权利要求37所述的方法，其特征在于，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  39. 根据权利要求34-38中任一项所述的方法，其特征在于，
    所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，
    所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，
    所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
  40. 根据权利要求34-39中任一项所述的方法，其特征在于，
    所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
  41. 根据权利要求34-40中任一项所述的方法，其特征在于，
    所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述方法还包括：
    所述网络设备通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号；
    其中，所述至少一个随机接入传输机会是根据所述第二关联关系确定的。
  42. 根据权利要求41所述的方法，其特征在于，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
  43. 根据权利要求41或42所述的方法，其特征在于，所述第二关联关系是预定义的或预配置的。
  44. 根据权利要求41-43中任一项所述的方法，其特征在于，所述网络设备通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号，包括以下情况中的至少一种：
    所述网络设备通过所述第一天线端口集合中发送所述第一同步信号的天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的部分天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的全部天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的主天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的辅天线端口接收随机接入信号。
  45. 根据权利要求41-44中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备通过所述第一天线端口集合中的至少一个天线端口发送随机接入响应；或者，
    所述第一天线端口集合中包括主天线端口，所述网络设备通过所述主天线端口发送随机接入响应；
    其中，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
  46. 根据权利要求34-45中任一项所述的方法，其特征在于，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：
    所述第一天线端口集合的标识；
    所述第一天线端口集合包括的天线端口的标识；
    所述第一天线端口集合中的主天线端口的标识；
    所述第一天线端口集合中的辅天线端口的标识；
    所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；
    所述第一天线端口集合中检测随机接入信号的天线端口的标识；
    所述第一天线端口集合中发送随机接入响应的天线端口的标识；
    所述第一天线端口集合所处的通信网络中传输的同步信号的索引；
    所述第一天线端口集合关联的同步信号的索引；
    所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第一天线端口集合关联的准共址关系的类型；
    所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
  47. 根据权利要求46所述的方法，其特征在于，
    所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
  48. 根据权利要求34-47中任一项所述的方法，其特征在于，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
  49. 根据权利要求33所述的方法，其特征在于，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
  50. 根据权利要求49所述的方法，其特征在于，所述第一同步信号是根据第三关联关系发送的，所述第一同步信号和所述第三关联关系用于确定所述第二天线端口。
  51. 根据权利要求50所述的方法，其特征在于，所述第三关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口的对应关系；
    一个同步信号与多个天线端口的对应关系；
    多个同步信号与一个天线端口的对应关系；
    多个同步信号与多个天线端口的一一对应关系；
    一个同步信号索引与一个天线端口标识的对应关系；
    一个同步信号索引与多个天线端口标识的对应关系；
    多个同步信号索引与一个天线端口标识的对应关系；
    多个同步信号索引与多个天线端口标识的一一对应关系。
  52. 根据权利要求49-51中任一项所述的方法，其特征在于，所述第一同步信号用于确定所述第二天线端口的标识。
  53. 根据权利要求52所述的方法，其特征在于，所述第二天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  54. 根据权利要求49-53中任一项所述的方法，其特征在于，
    所述第一同步信号是通过所述第二天线端口发送的；和/或，
    所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
  55. 根据权利要求49-54中任一项所述的方法，其特征在于，
    所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述方法还包括：
    所述网络设备接收随机接入信号；和/或
    所述网络设备通过所述第二天线端口发送随机接入响应；
    其中，所述随机接入信号是通过所述第二随机接入传输机会集合中的至少一个随机接入传输机会 发送的，所述至少一个随机接入传输机会是根据所述第四关联关系确定的，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
  56. 根据权利要求55所述的方法，其特征在于，所述随机接入信号是通过所述至少一个随机接入传输机会向所述第二天线端口发送的。
  57. 根据权利要求55或56所述的方法，其特征在于，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
  58. 根据权利要求55-57中任一项所述的方法，其特征在于，所述第四关联关系是预定义的或预配置的。
  59. 根据权利要求49-58中任一项所述的方法，其特征在于，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：
    所述第二天线端口的标识；
    所述第二天线端口所处的通信网络中传输的同步信号的索引；
    所述第二天线端口关联的同步信号的索引；
    所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第二天线端口关联的准共址关系的类型；
    所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
  60. 根据权利要求49-59中任一项所述的方法，其特征在于，所述方法还包括：
    所述网络设备接收终端设备发送的第三指示信息，所述第三指示信息用于确定所述终端设备选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
  61. 根据权利要求60所述的方法，其特征在于，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：
    所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；
    其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
  62. 根据权利要求60或61所述的方法，其特征在于，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：
    所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；
    其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
  63. 根据权利要求60-62中任一项所述的方法，其特征在于，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
  64. 根据权利要求33-63中任一项所述的方法，其特征在于，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
  65. 一种终端设备，其特征在于，包括：
    第一检测模块，用于检测网络设备发送的同步信号；
    第一确定模块，用于在所述终端设备检测到第一同步信号后，根据所述第一同步信号确定所述第一同步信号关联的至少一个天线端口。
  66. 根据权利要求65所述的终端设备，其特征在于，所述至少一个天线端口为第一天线端口集合中的天线端口，所述第一同步信号与所述第一天线端口集合关联。
  67. 根据权利要求66所述的终端设备，其特征在于，所述第一同步信号是根据第一关联关系发送的，所述第一确定模块进一步用于：
    根据所述第一同步信号和所述第一关联关系确定所述第一天线端口集合。
  68. 根据权利要求67所述的终端设备，其特征在于，所述第一关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口集合的对应关系；
    一个同步信号与多个天线端口集合的对应关系；
    多个同步信号与一个天线端口集合的对应关系；
    多个同步信号与多个天线端口集合的一一对应关系；
    一个同步信号索引与一个天线端口集合标识的对应关系；
    一个同步信号索引与多个天线端口集合标识的对应关系；
    多个同步信号索引与一个天线端口集合标识的对应关系；
    多个同步信号索引与多个天线端口集合标识的一一对应关系。
  69. 根据权利要求66-68中任一项所述的终端设备，其特征在于，所述第一确定模块进一步用于：
    根据所述第一同步信号确定所述第一天线端口集合的标识；或者，
    根据所述第一同步信号确定所述第一天线端口集合中的至少一个天线端口的标识。
  70. 根据权利要求69所述的终端设备，其特征在于，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  71. 根据权利要求66-70中任一项所述的终端设备，其特征在于，
    所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，
    所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，
    所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
  72. 根据权利要求66-71中任一项所述的终端设备，其特征在于，
    所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
  73. 根据权利要求66-72中任一项所述的终端设备，其特征在于，
    所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述终端设备还包括：
    第二确定模块，用于根据所述第二关联关系确定所述第一随机接入传输机会集合中的至少一个随机接入传输机会；
    第一发送模块，用于通过所述至少一个随机接入传输机会发送随机接入信号。
  74. 根据权利要求73所述的终端设备，其特征在于，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
  75. 根据权利要求73或74所述的终端设备，其特征在于，所述第二关联关系是预定义的或预配置的。
  76. 根据权利要求73-75中任一项所述的终端设备，其特征在于，所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号，包括以下情况中的至少一种：
    所述终端设备向所述第一天线端口集合中发送所述第一同步信号的天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的部分天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的全部天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的主天线端口发送随机接入信号；或者，
    所述终端设备向所述第一天线端口集合中的辅天线端口发送随机接入信号。
  77. 根据权利要求73-76中任一项所述的终端设备，其特征在于，所述终端设备还包括第二检测模块，所述第二检测模块用于：
    检测通过所述第一天线端口集合中的至少一个天线端口发送的随机接入响应；或者，
    所述第一天线端口集合中包括主天线端口，检测通过所述主天线端口发送的随机接入响应；
    其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
  78. 根据权利要求66-77中任一项所述的终端设备，其特征在于，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：
    所述第一天线端口集合的标识；
    所述第一天线端口集合包括的天线端口的标识；
    所述第一天线端口集合中的主天线端口的标识；
    所述第一天线端口集合中的辅天线端口的标识；
    所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；
    所述第一天线端口集合中检测随机接入信号的天线端口的标识；
    所述第一天线端口集合中发送随机接入响应的天线端口的标识；
    所述第一天线端口集合所处的通信网络中传输的同步信号的索引；
    所述第一天线端口集合关联的同步信号的索引；
    所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第一天线端口集合关联的准共址关系的类型；
    所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
  79. 根据权利要求78所述的终端设备，其特征在于，
    所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
  80. 根据权利要求66-79中任一项所述的终端设备，其特征在于，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
  81. 根据权利要求65所述的终端设备，其特征在于，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
  82. 根据权利要求81所述的终端设备，其特征在于，所述第一同步信号是根据第三关联关系发送的，所述第一确定模块进一步用于：
    根据所述第一同步信号和所述第三关联关系确定所述第二天线端口。
  83. 根据权利要求82所述的终端设备，其特征在于，所述第三关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口的对应关系；
    一个同步信号与多个天线端口的对应关系；
    多个同步信号与一个天线端口的对应关系；
    多个同步信号与多个天线端口的一一对应关系；
    一个同步信号索引与一个天线端口标识的对应关系；
    一个同步信号索引与多个天线端口标识的对应关系；
    多个同步信号索引与一个天线端口标识的对应关系；
    多个同步信号索引与多个天线端口标识的一一对应关系。
  84. 根据权利要求81-83中任一项所述的终端设备，其特征在于，所述第一确定模块进一步用于：
    根据所述第一同步信号确定所述第二天线端口的标识。
  85. 根据权利要求84所述的终端设备，其特征在于，所述第二天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  86. 根据权利要求81-85中任一项所述的终端设备，其特征在于，
    所述第一同步信号是通过所述第二天线端口发送的；和/或，
    所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
  87. 根据权利要求81-86中任一项所述的终端设备，其特征在于，
    所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述终端设备还包括：
    第三确定模块，用于根据所述第四关联关系确定所述第二随机接入传输机会集合中的至少一个随机接入传输机会，并通过所述至少一个随机接入传输机会发送随机接入信号；和/或，
    第三检测模块，用于检测通过所述第二天线端口发送的随机接入响应；
    其中，所述随机接入响应是针对所述终端设备发送的随机接入信号的响应。
  88. 根据权利要求87所述的终端设备，其特征在于，所述终端设备通过所述至少一个随机接入传输机会发送随机接入信号，包括：
    所述终端设备通过所述至少一个随机接入传输机会向所述第二天线端口发送随机接入信号。
  89. 根据权利要求87或88所述的终端设备，其特征在于，所述第一同步信号包括所述终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
  90. 根据权利要求87-89中任一项所述的终端设备，其特征在于，所述第四关联关系是预定义的或预配置的。
  91. 根据权利要求81-90中任一项所述的终端设备，其特征在于，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：
    所述第二天线端口的标识；
    所述第二天线端口所处的通信网络中传输的同步信号的索引；
    所述第二天线端口关联的同步信号的索引；
    所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第二天线端口关联的准共址关系的类型；
    所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
  92. 根据权利要求81-91中任一项所述的终端设备，其特征在于，所述终端设备还包括：
    第二发送模块，用于向所述网络设备发送第三指示信息，所述第三指示信息用于确定所述终端设备选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
  93. 根据权利要求92所述的终端设备，其特征在于，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：
    所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；
    其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
  94. 根据权利要求92或93所述的终端设备，其特征在于，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：
    所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；
    其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
  95. 根据权利要求92-94中任一项所述的终端设备，其特征在于，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
  96. 根据权利要求65-95中任一项所述的终端设备，其特征在于，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
  97. 一种网络设备，其特征在于，包括：
    第一发送模块，用于发送同步信号；
    其中，所述同步信号包括第一同步信号，所述第一同步信号用于确定所述第一同步信号关联的至少一个天线端口。
  98. 根据权利要求97所述的网络设备，其特征在于，所述至少一个天线端口为第一天线端口集合中的天线端口，所述第一同步信号与所述第一天线端口集合关联。
  99. 根据权利要求98所述的网络设备，其特征在于，所述第一同步信号是根据第一关联关系发送的，所述第一同步信号和所述第一关联关系用于确定所述第一天线端口集合。
  100. 根据权利要求99所述的网络设备，其特征在于，所述第一关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口集合的对应关系；
    一个同步信号与多个天线端口集合的对应关系；
    多个同步信号与一个天线端口集合的对应关系；
    多个同步信号与多个天线端口集合的一一对应关系；
    一个同步信号索引与一个天线端口集合标识的对应关系；
    一个同步信号索引与多个天线端口集合标识的对应关系；
    多个同步信号索引与一个天线端口集合标识的对应关系；
    多个同步信号索引与多个天线端口集合标识的一一对应关系。
  101. 根据权利要求98-100中任一项所述的网络设备，其特征在于，所述第一同步信号用于确定所述第一天线端口集合的标识；或者，所述第一同步信号用于确定所述第一天线端口集合中的至少一个天线端口的标识。
  102. 根据权利要求101所述的网络设备，其特征在于，所述第一天线端口集合的标识或所述第一天线端口集合中的至少一个天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  103. 根据权利要求98-102中任一项所述的网络设备，其特征在于，
    所述第一同步信号是通过所述第一天线端口集合中的部分天线端口发送的；或者，
    所述第一同步信号是通过所述第一天线端口集合中的全部天线端口发送的；或者，
    所述第一天线端口集合中包括主天线端口，所述第一同步信号是通过所述主天线端口发送的。
  104. 根据权利要求98-103中任一项所述的网络设备，其特征在于，
    所述第一天线端口集合中的部分天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中的全部天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括主天线端口，所述主天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号；或者，
    所述第一天线端口集合中包括辅天线端口，所述辅天线端口不发送与所述第一天线端口集合不具有关联关系的同步信号。
  105. 根据权利要求98-104中任一项所述的网络设备，其特征在于，
    所述第一天线端口集合与第一随机接入传输机会集合之间具有第二关联关系，和/或，所述第一同步信号与所述第一随机接入传输机会集合之间具有第二关联关系，所述网络设备还包括：
    第一接收模块，用于通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号；
    其中，所述至少一个随机接入传输机会是根据所述第二关联关系确定的。
  106. 根据权利要求105所述的网络设备，其特征在于，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第一门限的同步信号。
  107. 根据权利要求105或106所述的网络设备，其特征在于，所述第二关联关系是预定义的或预配置的。
  108. 根据权利要求105-107中任一项所述的网络设备，其特征在于，所述网络设备通过所述第一随机传输机会集合中的至少一个随机接入传输机会接收随机接入信号，包括以下情况中的至少一种：
    所述网络设备通过所述第一天线端口集合中发送所述第一同步信号的天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的部分天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的全部天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的主天线端口接收随机接入信号；或者，
    所述网络设备通过所述第一天线端口集合中的辅天线端口接收随机接入信号。
  109. 根据权利要求105-108中任一项所述的网络设备，其特征在于，所述网络设备还包括第二发送模块，所述第二发送模块用于：
    通过所述第一天线端口集合中的至少一个天线端口发送随机接入响应；或者，
    所述第一天线端口集合中包括主天线端口，通过所述主天线端口发送随机接入响应；
    其中，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
  110. 根据权利要求98-109中任一项所述的网络设备，其特征在于，所述第一天线端口集合中的至少一个天线端口用于传输第一指示信息，所述第一指示信息用于确定以下信息中的至少一项：
    所述第一天线端口集合的标识；
    所述第一天线端口集合包括的天线端口的标识；
    所述第一天线端口集合中的主天线端口的标识；
    所述第一天线端口集合中的辅天线端口的标识；
    所述第一天线端口集合中发送所述第一同步信号的天线端口的标识；
    所述第一天线端口集合中检测随机接入信号的天线端口的标识；
    所述第一天线端口集合中发送随机接入响应的天线端口的标识；
    所述第一天线端口集合所处的通信网络中传输的同步信号的索引；
    所述第一天线端口集合关联的同步信号的索引；
    所述第一天线端口集合中的天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第一天线端口集合关联的准共址关系的类型；
    所述第一天线端口集合与第一随机接入传输机会集合之间的关联关系。
  111. 根据权利要求110所述的网络设备，其特征在于，
    所述第一指示信息是通过所述第一天线端口集合中发送所述第一同步信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中检测随机接入信号的天线端口传输的；或者
    所述第一指示信息是通过所述第一天线端口集合中的全部天线端口传输的。
  112. 根据权利要求98-111中任一项所述的网络设备，其特征在于，当所述第一天线端口集合中包括两个或两个以上天线端口时，所述第一天线端口集合中的至少两个天线端口为分布式天线端口，或者，所述第一天线端口集合中的任意两个天线端口为分布式天线端口。
  113. 根据权利要求97所述的网络设备，其特征在于，所述至少一个天线端口包括第二天线端口，所述第一同步信号与所述第二天线端口关联。
  114. 根据权利要求113所述的网络设备，其特征在于，所述第一同步信号是根据第三关联关系发送的，所述第一同步信号和所述第三关联关系用于确定所述第二天线端口。
  115. 根据权利要求114所述的网络设备，其特征在于，所述第三关联关系包括以下中的至少一种：
    一个同步信号与一个天线端口的对应关系；
    一个同步信号与多个天线端口的对应关系；
    多个同步信号与一个天线端口的对应关系；
    多个同步信号与多个天线端口的一一对应关系；
    一个同步信号索引与一个天线端口标识的对应关系；
    一个同步信号索引与多个天线端口标识的对应关系；
    多个同步信号索引与一个天线端口标识的对应关系；
    多个同步信号索引与多个天线端口标识的一一对应关系。
  116. 根据权利要求113-115中任一项所述的网络设备，其特征在于，所述第一同步信号用于确定所述第二天线端口的标识。
  117. 根据权利要求116所述的网络设备，其特征在于，所述第二天线端口的标识是根据以下信息中的一种或多种确定的：
    所述第一同步信号的索引；
    所述第一同步信号对应的同步信号序列；
    所述第一同步信号关联的下行信道中传输的信息。
  118. 根据权利要求113-117中任一项所述的网络设备，其特征在于，
    所述第一同步信号是通过所述第二天线端口发送的；和/或，
    所述第二天线端口不发送与所述第二天线端口不具有关联关系的同步信号。
  119. 根据权利要求113-118中任一项所述的网络设备，其特征在于，
    所述第二天线端口与第二随机接入传输机会集合之间具有第四关联关系，和/或，所述第一同步信号与所述第二随机接入传输机会集合之间具有第四关联关系，所述网络设备还包括：
    第二接收模块，用于接收随机接入信号；和/或
    第三发送模块，用于通过所述第二天线端口发送随机接入响应；
    其中，所述随机接入信号是通过所述第二随机接入传输机会集合中的至少一个随机接入传输机会发送的，所述至少一个随机接入传输机会是根据所述第四关联关系确定的，所述随机接入响应是针对终端设备发送的随机接入信号的响应。
  120. 根据权利要求119所述的网络设备，其特征在于，所述随机接入信号是通过所述至少一个随机接入传输机会向所述第二天线端口发送的。
  121. 根据权利要求119或120所述的网络设备，其特征在于，所述第一同步信号包括终端设备检测到的接收信号强度最强的同步信号或接收信号强度超过第二门限的同步信号。
  122. 根据权利要求119-121中任一项所述的网络设备，其特征在于，所述第四关联关系是预定义的或预配置的。
  123. 根据权利要求113-122中任一项所述的网络设备，其特征在于，所述第二天线端口用于传输第二指示信息，所述第二指示信息用于确定以下信息中的至少一项：
    所述第二天线端口的标识；
    所述第二天线端口所处的通信网络中传输的同步信号的索引；
    所述第二天线端口关联的同步信号的索引；
    所述第二天线端口在进行数据传输时需要进行速率匹配的同步信号的索引；
    所述第二天线端口关联的准共址关系的类型；
    所述第二天线端口与第二随机接入传输机会集合之间的关联关系。
  124. 根据权利要求113-123中任一项所述的网络设备，其特征在于，所述网络设备还包括：
    第三接收模块，用于接收终端设备发送的第三指示信息，所述第三指示信息用于确定所述终端设备 选择的M个天线端口和/或所述终端设备选择的N个同步信号，其中，N，M为正整数。
  125. 根据权利要求124所述的网络设备，其特征在于，所述第三指示信息用于确定所述终端设备选择的M个天线端口，包括：
    所述第三指示信息用于指示所述终端设备选择的M个天线端口的标识；
    其中，所述M值为预定义或预配置的，或者，所述M值是根据第三门限值确定的，所述第三门限值为预定义或预配置的。
  126. 根据权利要求124或125所述的网络设备，其特征在于，所述第三指示信息用于确定所述终端设备选择的N个同步信号，包括：
    所述第三指示信息用于指示所述终端设备选择的N个同步信号的索引；
    其中，所述N值为预定义或预配置的，或者，所述N值是根据第四门限值确定的，所述第四门限值为预定义或预配置的。
  127. 根据权利要求124-126中任一项所述的网络设备，其特征在于，所述第三指示信息承载于以下传输中的一种或多种：随机接入信号，随机接入响应调度的上行传输，随机接入过程完成后的上行传输。
  128. 根据权利要求97-127中任一项所述的网络设备，其特征在于，所述第一同步信号关联的第一天线端口集合是根据预定义或预配置的信息确定的；或者，所述第一同步信号关联的第二天线端口是根据预定义或预配置的信息确定的。
  129. 一种终端设备，其特征在于，包括收发器、存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以使所述终端设备执行如权利要求1-32中任一项所述的方法。
  130. 一种网络设备，其特征在于，包括收发器、存储器和处理器，所述存储器用于存储程序，所述处理器用于调用所述存储器中的程序，以使所述网络设备执行如权利要求33-64中任一项所述的方法。
  131. 一种装置，其特征在于，包括处理器，用于从存储器中调用程序，以使所述装置执行如权利要求1-64中任一项所述的方法。
  132. 一种芯片，其特征在于，包括处理器，用于从存储器调用程序，使得安装有所述芯片的设备执行如权利要求1-64中任一项所述的方法。
  133. 一种计算机可读存储介质，其特征在于，其上存储有程序，所述程序使得计算机执行如权利要求1-64中任一项所述的方法。
  134. 一种计算机程序产品，其特征在于，包括程序，所述程序使得计算机执行如权利要求1-64中任一项所述的方法。
  135. 一种计算机程序，其特征在于，所述计算机程序使得计算机执行如权利要求1-64中任一项所述的方法。
PCT/CN2023/104184 2023-06-29 2023-06-29 无线通信的方法、终端设备和网络设备 Pending WO2025000390A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202380096567.0A CN120982177A (zh) 2023-06-29 2023-06-29 无线通信的方法、终端设备和网络设备
PCT/CN2023/104184 WO2025000390A1 (zh) 2023-06-29 2023-06-29 无线通信的方法、终端设备和网络设备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2023/104184 WO2025000390A1 (zh) 2023-06-29 2023-06-29 无线通信的方法、终端设备和网络设备

Publications (1)

Publication Number Publication Date
WO2025000390A1 true WO2025000390A1 (zh) 2025-01-02

Family

ID=93936675

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2023/104184 Pending WO2025000390A1 (zh) 2023-06-29 2023-06-29 无线通信的方法、终端设备和网络设备

Country Status (2)

Country Link
CN (1) CN120982177A (zh)
WO (1) WO2025000390A1 (zh)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170093720A (ko) * 2016-02-04 2017-08-16 주식회사 케이티 새로운 프레임 구조를 위한 하향 동기 신호 전송 방법 및 그 장치
CN108270710A (zh) * 2017-01-03 2018-07-10 中兴通讯股份有限公司 一种信号传输方法、装置及系统
CN110740026A (zh) * 2014-12-31 2020-01-31 华为技术有限公司 信号发送和检测装置、系统及方法
CN114501671A (zh) * 2020-11-13 2022-05-13 华为技术有限公司 初始接入的方法和装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110740026A (zh) * 2014-12-31 2020-01-31 华为技术有限公司 信号发送和检测装置、系统及方法
KR20170093720A (ko) * 2016-02-04 2017-08-16 주식회사 케이티 새로운 프레임 구조를 위한 하향 동기 신호 전송 방법 및 그 장치
CN108270710A (zh) * 2017-01-03 2018-07-10 中兴通讯股份有限公司 一种信号传输方法、装置及系统
CN114501671A (zh) * 2020-11-13 2022-05-13 华为技术有限公司 初始接入的方法和装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
INTEL CORPORATION: "Number of Antenna Ports of PBCH", 3GPP DRAFT; R1-1611967 NUMBER OF ANTENNA PORTS FOR PBCH, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), MOBILE COMPETENCE CENTRE ; 650, ROUTE DES LUCIOLES ; F-06921 SOPHIA-ANTIPOLIS CEDEX ; FRANCE, vol. RAN WG1, no. Reno, Nevada, U.S.A.; 20161114 - 20161118, 13 November 2016 (2016-11-13), Mobile Competence Centre ; 650, route des Lucioles ; F-06921 Sophia-Antipolis Cedex ; France , XP051175932 *

Also Published As

Publication number Publication date
CN120982177A (zh) 2025-11-18

Similar Documents

Publication Publication Date Title
US20230179374A1 (en) Channel transmission method, terminal device, and network device
EP3846532A1 (en) Power control method and device
JP7441960B2 (ja) 情報伝送方法、端末機器及びネットワーク機器
WO2021237675A1 (zh) 无线通信方法和终端设备
CN116458251B (zh) 随机接入方法和终端设备
US12452830B2 (en) Information processing method based on network slide identity information in access procedure, and terminal device
WO2023130245A1 (zh) 通信方法、终端设备及网络设备
CN109862569A (zh) 通信设备
US20230354250A1 (en) Communication system
WO2023178697A1 (zh) 信息处理方法和终端设备
CN117596707B (zh) 通信方法、终端、网络设备、系统及存储介质
WO2022246588A1 (zh) 无线通信的方法、终端设备和网络设备
CN118216113A (zh) 波束失败恢复方法、终端设备和网络设备
WO2022155976A1 (zh) 初始接入方法、终端设备和网络设备
WO2022067614A1 (zh) 无线通信方法、终端设备和网络设备
WO2022110072A1 (zh) 无线通信的方法、终端设备和网络设备
WO2025019996A1 (zh) 用于无线通信的节点中的方法和装置
WO2025000427A1 (zh) 被用于无线通信的节点中的方法和装置
WO2025000390A1 (zh) 无线通信的方法、终端设备和网络设备
CN118828993A (zh) 被用于无线通信的节点中的方法和装置
CN119096580A (zh) 无线通信方法、用户设备和网络设备
CN116783922A (zh) 信息指示方法、终端设备、网络设备、芯片和存储介质
US20250175918A1 (en) Wireless communication method, terminal device, and network device
WO2023130467A1 (zh) 无线通信的方法、终端设备和网络设备
WO2024065806A1 (zh) 无线通信的方法、终端设备及网络设备

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: 23942899

Country of ref document: EP

Kind code of ref document: A1