WO2025260367A1 - 通信方法、终端、网络设备及存储介质 - Google Patents

通信方法、终端、网络设备及存储介质

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Publication number
WO2025260367A1
WO2025260367A1 PCT/CN2024/100738 CN2024100738W WO2025260367A1 WO 2025260367 A1 WO2025260367 A1 WO 2025260367A1 CN 2024100738 W CN2024100738 W CN 2024100738W WO 2025260367 A1 WO2025260367 A1 WO 2025260367A1
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WO
WIPO (PCT)
Prior art keywords
reference signal
terminal
random access
access information
network device
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/CN2024/100738
Other languages
English (en)
French (fr)
Inventor
李明菊
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.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software Co 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 Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN202480037060.2A priority Critical patent/CN121605748A/zh
Priority to PCT/CN2024/100738 priority patent/WO2025260367A1/zh
Publication of WO2025260367A1 publication Critical patent/WO2025260367A1/zh
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • This disclosure relates to the field of communication technology, and in particular to communication methods, terminals, network devices and storage media.
  • Massive MIMO can provide greater beamforming gain, effectively compensating for the transmission losses caused by high-frequency bands.
  • the electromagnetic field can be divided into near field and far field. If the terminal is located in the far field, the electromagnetic wave received by the terminal may be a plane wave, and the beam directed at the terminal is a two-dimensional (2D) directional beam pointing towards the terminal. If the terminal is located in the near field, then the electromagnetic wave received by the terminal may be a spherical wave, and the beam directed at the terminal is a three-dimensional (3D) beam surrounding the terminal.
  • 2D two-dimensional
  • This disclosure presents a communication method, a terminal, a network device, and a storage medium.
  • a communication method comprising: a terminal receiving a first reference signal sent by a network device; the terminal determining an identifier of the first reference signal based on the first reference signal, the identifier being used to determine random access information.
  • a communication method comprising: a network device sending a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, the identifier being used to determine random access information.
  • a communication method comprising: a network device sending a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, the identifier being used to determine random access information; the terminal receiving the first reference signal sent by the network device; and the terminal determining an identifier of the first reference signal based on the first reference signal, the identifier being used to determine random access information.
  • a terminal comprising: a transceiver module for receiving a first reference signal sent by a network device; and a processing module for determining an identifier of the first reference signal based on the first reference signal, the identifier being used to determine random access information.
  • a network device comprising: a transceiver module configured to send a first reference signal to a terminal, the first reference signal being configured to determine an identifier of the first reference signal, the identifier being configured to determine random access information.
  • a terminal comprising: one or more processors; wherein the processors are configured to execute the first aspect and any one of the communication methods in the first aspect.
  • a network device comprising: one or more processors; wherein the processors are configured to perform the second aspect and any one of the communication methods in the second aspect.
  • a communication system including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.
  • a storage medium stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one of the first aspects or the second aspect and any one of the second aspects.
  • a program product comprising a computer program that, when executed by a communication device, causes the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.
  • This disclosure achieves flexible determination of random access information by receiving a first reference signal and determining an identifier of the first reference signal based on the first reference signal.
  • the identifier can be used to determine random access information, adapting to changing situations and improving communication efficiency.
  • Figure 1a is a schematic diagram of the near and far fields illustrating an exemplary embodiment of the present disclosure.
  • Figure 1b is a schematic diagram illustrating a far-field UE receiving electromagnetic waves according to an exemplary embodiment of the present disclosure.
  • Figure 1c is a schematic diagram illustrating near-field UE receiving electromagnetic waves according to an exemplary embodiment of this disclosure.
  • Figure 4a is a flowchart illustrating a communication method according to an embodiment of the present disclosure.
  • Figure 5 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure.
  • Figure 6a is a schematic diagram of the structure of a terminal according to an embodiment of the present disclosure.
  • Figure 6b is a schematic diagram of the structure of a network device according to an embodiment of the present disclosure.
  • Figure 7a is a schematic diagram of the structure of a communication device according to an exemplary embodiment.
  • This disclosure presents a communication method, a terminal, a network device, and a storage medium.
  • embodiments of this disclosure propose a communication method, the method comprising: a terminal receiving a first reference signal sent by a network device; the terminal determining an identifier of the first reference signal based on the first reference signal, the identifier being used to determine random access information.
  • the identifier can be used to determine random access information, so as to flexibly determine random access information, adapt to changing situations, and improve communication efficiency.
  • the method further includes: the terminal determining a reference signal resource corresponding to at least one second reference signal; different reference signals among the at least one second reference signal correspond to different reference signal resources; or, different reference signals among the at least one second reference signal correspond to different port information of the same reference signal resource.
  • the terminal can determine a reference signal resource corresponding to at least one second reference signal, so as to associate the first reference signal with at least one second reference signal.
  • Different reference signals among the at least one second reference signal may correspond to different reference signal resources, i.e., different beams.
  • different reference signals among the at least one second reference signal may correspond to different port information of the same reference signal resource, i.e., different beams.
  • At least two of the at least one second reference signal occupy the same symbol.
  • At least two of the at least one second reference signal occupy the same symbol, that is, at least two second reference signals are transmitted at the same time to reduce the beam scanning time.
  • the reference signal resource is characterized in that the reference signal resource is determined based on the configuration of the network device; and/or the reference signal resource is determined based on a protocol.
  • the reference signal resources can be configured by the network device or specified by the protocol, so as to flexibly respond to different situations and improve communication efficiency.
  • the first reference signal includes a synchronization signal block (SSB); and/or, the second reference signal includes a channel state information reference signal (CSI-RS).
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • the first reference signal can be SSB and the second reference signal can be CSI-RS to improve communication efficiency.
  • the at least one second reference signal includes one or more second reference signals associated with the first reference signal.
  • At least one second reference signal includes one or more second reference signals associated with the first reference signal, for the terminal to accurately determine random access information based on the associated at least one second reference signal.
  • the method further includes: the terminal determining first random access information corresponding to the second reference signal based on a first mapping relationship and/or a terminal type; wherein the first mapping relationship is used to indicate the random access information corresponding to the second reference signal; and the terminal performing a random access process based on the first random access information.
  • the terminal may determine the second reference signal based on the first mapping relationship and/or the terminal type.
  • the method further includes: the terminal determining second random access information corresponding to the first reference signal based on a second mapping relationship; wherein the second mapping relationship is used to indicate the random access information corresponding to the first reference signal; the second random access information is used to determine first random access information, the first random access information being a subset of the second random access information.
  • the terminal can first determine the second random access information corresponding to the first reference signal, and then determine the first random access information corresponding to the second reference signal from the second random access information, thereby determining more accurate random access information and improving efficiency.
  • the terminal type is a first type.
  • the terminal type can be a first type, that is, a terminal of the first type can determine random access based on the above method. Information can improve communication efficiency.
  • the difference between the measurement results corresponding to at least two second reference signals that occupy the same symbol but occupy different frequency domain resources is greater than or equal to a threshold, and the terminal type is a first type.
  • the terminal is a first type terminal. That is, the terminal can determine whether it is a first type terminal based on the measurement results of the received first reference signal, thereby enabling flexible selection of different methods to determine random access information and improving communication efficiency.
  • the method further includes: the terminal determining second random access information corresponding to the identifier of the first reference signal based on a second mapping relationship and/or a terminal type; wherein the second mapping relationship is used to indicate the random access information corresponding to the first reference signal; and the terminal performing a random access process based on the second random access information.
  • the terminal can determine the second random access information corresponding to the first reference signal and improve communication efficiency directly based on the second random access information.
  • the terminal type is a second type.
  • the terminal type can be a second type. That is, when the terminal is a second type terminal, random access information can be determined based on the above method to improve communication efficiency.
  • the difference between the measurement results corresponding to at least two second reference signals that occupy the same symbol but occupy different frequency domain resources is less than a threshold, and the terminal type is a second type.
  • the terminal is a second type of terminal. That is, the terminal can determine whether it is a second type of terminal based on the measurement results of the received first reference signal, thereby flexibly selecting different methods to determine random access information and improving communication efficiency.
  • the random access information includes at least one of random access channel timing (RO) and random access preamble; at least one of the random access information determined by the first type of terminal and the second type of terminal is different.
  • RO random access channel timing
  • the random access information may include at least one of RO and random access preamble, and at least one of the random access information determined by the first type terminal and the second type terminal may be different to improve communication efficiency.
  • the time-domain location of the reference signal resource corresponding to the second reference signal is determined in at least one of the following ways: based on a protocol; based on the physical broadcast channel PBCH sent by the network device; based on a control resource set; based on downlink control information (DCI); or based on system messages sent by the network device.
  • a protocol based on the physical broadcast channel PBCH sent by the network device
  • PBCH physical broadcast channel
  • control resource set based on based on downlink control information (DCI); or based on system messages sent by the network device.
  • DCI downlink control information
  • the time-domain location of the second reference signal resource can be determined using at least one of the above methods to flexibly determine the time-domain location.
  • the time-domain location of the reference signal resource corresponding to the second reference signal includes at least one of the following: on at least one symbol occupied by the first reference signal associated with the second reference signal; on the most recently available symbol of the first reference signal associated with the second reference signal; on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer; within M time slots before or after the first reference signal associated with the second reference signal, where M is a positive integer.
  • the time-domain location of the second reference signal resource can be at least one of the above-mentioned features to improve communication efficiency.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources. That is, at least one of the time domain resources and frequency domain resources of the first reference signal and the second reference signal is different, so as to improve communication efficiency.
  • the mapping relationship is determined based on the configuration of the network device; and/or, the mapping relationship is determined based on the protocol; the mapping relationship includes at least one of a first mapping relationship and a second mapping relationship.
  • a communication method comprising: a network device sending a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, the identifier being used to determine random access information.
  • the method further includes: the network device configuring reference signal resources to the terminal, the reference signal resources corresponding to at least one second reference signal; different reference signals among the at least one second reference signals corresponding to different reference signal resources; or, different reference signals among the at least one second reference signals corresponding to different port information of the same reference signal resource.
  • At least two of the at least one second reference signal occupy The same symbols.
  • the first reference signal includes a synchronization signal block (SSB); and/or, the second reference signal includes a channel state information reference signal.
  • SSB synchronization signal block
  • the at least one second reference signal includes one or more second reference signals associated with the first reference signal.
  • the method further includes: the network device configuring a mapping relationship to the terminal, the mapping relationship including at least one of a first mapping relationship and a second mapping relationship, wherein the first mapping relationship is used to indicate random access information corresponding to the second reference signal, and the second mapping relationship is used to indicate random access information corresponding to the first reference signal.
  • the time-domain location of the reference signal resource corresponding to the second reference signal is determined in at least one of the following ways: determined based on a protocol; determined by the network device.
  • the time-domain location of the reference signal resource corresponding to the second reference signal includes at least one of the following: on at least one symbol occupied by the first reference signal associated with the second reference signal; on the most recently available symbol of the first reference signal associated with the second reference signal; on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer; within M time slots before or after the first reference signal associated with the second reference signal, where M is a positive integer.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources.
  • a communication method comprising: a network device sending a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, the identifier being used to determine random access information; the terminal receiving the first reference signal sent by the network device; and the terminal determining an identifier of the first reference signal based on the first reference signal, the identifier being used to determine random access information.
  • a terminal comprising: a transceiver module for receiving a first reference signal sent by a network device; and a processing module for determining an identifier of the first reference signal based on the first reference signal, wherein the identifier is used to determine random access information.
  • a network device comprising: a transceiver module, configured to send a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, the identifier being used to determine random access information.
  • a sixth aspect provides a terminal, comprising: one or more processors; wherein the processors are configured to execute the first aspect and any one of the communication methods in the first aspect.
  • a seventh aspect provides a network device, comprising: one or more processors; wherein the processors are configured to perform the second aspect and any one of the communication methods in the second aspect.
  • a communication system including a terminal and a network device, wherein the terminal is configured to implement the first aspect and any one of the communication methods in the first aspect, and the network device is configured to implement the second aspect and any one of the communication methods in the second aspect.
  • a storage medium stores instructions, which, when executed on a communication device, cause the communication device to perform a communication method as described in the first aspect and any one thereof, or the second aspect and any one thereof.
  • embodiments of this disclosure provide a program product that, when executed by a communication device, causes the communication device to perform the method as described in an optional implementation of the first or second aspect.
  • embodiments of this disclosure provide a computer program that, when run on a computer, causes the computer to perform the methods described in an optional implementation of the first or second aspect.
  • embodiments of this disclosure provide a chip or chip system.
  • the chip or chip system includes processing circuitry configured to perform the method described in an optional implementation of the first or second aspect above.
  • the terminals, access network devices, first network elements, other network elements, core network devices, communication systems, storage media, program products, computer programs, chips, or chip systems involved in the embodiments of this disclosure are all used to execute the methods proposed in the embodiments of this disclosure. Therefore, the beneficial effects that can be achieved can be referred to the beneficial effects in the corresponding methods, and will not be repeated here.
  • This disclosure provides communication methods, terminals, network devices, and storage media.
  • the terms “communication method” and “information processing method” can be used interchangeably, as can the terms “communication device” and “information processing device” and “communication device,” and the terms “information processing system” and “communication system.”
  • each step in a particular embodiment can be implemented as an independent embodiment, and the steps can be arbitrarily combined.
  • a solution after removing some steps in a particular embodiment can also be implemented as an independent embodiment, and the order of the steps in a particular embodiment can be arbitrarily interchanged.
  • the optional implementation methods in a particular embodiment can be arbitrarily combined; moreover, the embodiments can be arbitrarily combined, for example, some or all steps of different embodiments can be arbitrarily combined, and a particular embodiment can be arbitrarily combined with the optional implementation methods of other embodiments.
  • multiple refers to two or more.
  • the terms “at least one of”, “one or more”, “a plurality of”, “multiple”, etc., may be used interchangeably.
  • the notation "at least one of A and B", “A and/or B", “A in one case, B in another”, “in response to one case A, in response to another case B”, etc. may include the following technical solutions depending on the situation: in some embodiments, A (execute A regardless of B); in some embodiments, B (execute B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed); in some embodiments, A and B (both A and B are executed). The same applies when there are more branches such as A, B, C, etc.
  • the notation "A or B” may include the following technical solutions, depending on the situation: in some embodiments, A (execution of A regardless of B); in some embodiments, B (execution of B regardless of A); in some embodiments, execution is selected from A and B (A and B are selectively executed). The same applies when there are more branches such as A, B, C, etc.
  • the descriptive object is a "field,” the ordinal numbers preceding "field” in “first field” and “second field” do not restrict the position or order of the "fields.” "First” and “second” do not restrict whether the "fields” they modify are in the same message, nor do they restrict the order of "first field” and “second field.”
  • the descriptive object is a "level,” the ordinal numbers preceding "level” in “first level” and “second level” do not restrict the priority between “levels.”
  • the number of descriptive objects is not limited by ordinal numbers and can be one or more. For example, in “first device,” the number of "devices" can be one or more.
  • the objects modified by different prefixes can be the same or different.
  • first device and second device can be the same device or different devices, and their types can be the same or different.
  • first information and second information can be the same information or different information, and their content can be the same or different.
  • “including A,” “containing A,” “for indicating A,” and “carrying A” can be interpreted as directly carrying A or indirectly indicating A.
  • the terms “in response to...”, “in response to determining...”, “in the case of...”, “when...”, “if...”, “if...”, etc., can be used interchangeably.
  • the terms “greater than,” “greater than or equal to,” “not less than,” “more than,” “more than or equal to,” “not less than,” “higher than,” “higher than or equal to,” “not lower than,” and “above” can be used interchangeably, as can the terms “less than,” “less than or equal to,” “not greater than,” “less than,” “less than or equal to,” “not more than,” “lower than,” “lower than or equal to,” “not higher than,” and “below”.
  • the apparatus and device may be interpreted as physical or virtual, and their names are not limited to the names recorded in the embodiments. In some cases, they may also be understood as “equipment”, “device”, “circuit”, “network element”, “node”, “function”, “unit”, “section”, “system”, “network”, “chip”, “chip system”, “entity”, “body”, etc.
  • network can be interpreted as devices included in the network, such as access network devices, core network devices, etc.
  • access network device may also be referred to as “radio access network device (RAN device),”"base station (BS),”"radio base station,” or “fixed station.”
  • RAN device radio access network device
  • BS base station
  • TP transmission point
  • RP receiver point
  • TRP transmission/reception point
  • BWP bandwidth part
  • terminal or “terminal device” may be referred to as "user equipment (UE),” “user terminal,” “mobile station (MS),” “mobile terminal (MT),” “subscriber station,” “mobile unit,” “subscriber unit,” “wireless unit,” “remote unit,” “mobile device,” “wireless device,” “wireless communication device,” “remote device,” “mobile subscriber station,” “access terminal,” “mobile terminal,” “wireless terminal,” “remote terminal,” “handset,” “user agent,” “mobile client,” “client,” etc.
  • UE user equipment
  • MS mobile station
  • MT mobile terminal
  • the acquisition of data, information, etc. may comply with the laws and regulations of the country where the location is situated.
  • data, information, etc. may be obtained with the user's consent.
  • each element, each row, or each column in the table of this disclosure can be implemented as an independent embodiment, and any combination of any element, any row, or any column can also be implemented as an independent embodiment.
  • Massive MIMO can provide greater beamforming gain, effectively compensating for the transmission losses caused by high-frequency bands.
  • the electromagnetic wave received by the terminal may be a spherical wave, and the beam directed towards the terminal is a three-dimensional (3-dimension, 3D) beam surrounding the terminal.
  • ⁇ represents positive infinity.
  • Figure 1b is a schematic diagram illustrating far-field UE electromagnetic wave reception according to an exemplary embodiment of this disclosure.
  • the electromagnetic waves arriving at the UE from its different antenna ports or elements are plane waves, and the beam targeting the UE is a two-dimensional (2D) directional beam pointing towards the target UE.
  • 2D two-dimensional
  • Figure 1c is a schematic diagram illustrating near-field UE electromagnetic wave reception according to an exemplary embodiment of this disclosure.
  • the electromagnetic wave received by the UE is a spherical wave
  • the beam targeting the UE is a three-dimensional (3D) beam surrounding the target UE.
  • 3D three-dimensional
  • the directions of arrival at the terminal from multiple ports are the same.
  • multiple (e.g., 32) transmit beam directions it is only necessary to transmit 32 reference signal resources based on the 32 beam directions at any one port to obtain the optimal transmit beam direction for each port.
  • the distances to the terminal from the first beam direction transmitted by the network device (or base station) at the first port are different from the distances from the first beam direction transmitted by the network device at the second port. Therefore, the network device needs to transmit 32 beam directions separately at each port. If the network device still transmits the reference signals for beam measurement in the traditional single-port manner, the scanning time of the terminal will increase by a multiple of the number of ports.
  • the base station can simultaneously transmit reference signals in multiple ports or multiple beam directions.
  • the terminal can simultaneously measure the measurement results corresponding to different ports or different beams (e.g., Layer 1 reference signal received power (L1-RSRP) or Layer 1 signal to interference plus noise ratio (L1-SINR)), and report each reference signal resource identifier, or further report the information of each port/port group and the corresponding measurement results, thereby reducing the beam scanning time on the network side.
  • L1-RSRP Layer 1 reference signal received power
  • L1-SINR Layer 1 signal to interference plus noise ratio
  • Figure 1d is a schematic diagram of a communication system architecture according to an embodiment of the present disclosure.
  • the communication system 100 includes a terminal 101 and a network device 102.
  • the technical solutions of this disclosure can be applied to the Open RAN architecture.
  • the interfaces between or within access network devices involved in the embodiments of this disclosure can be transformed into internal interfaces of Open RAN.
  • the processes and information interactions between these internal interfaces can be implemented by software or programs.
  • the access network device may be composed of a central unit (CU) and a distributed unit (DU).
  • the CU may also be called a control unit.
  • the CU-DU structure can separate the protocol layer of the access network device. Some protocol layer functions are centrally controlled by the CU, while the remaining part or all of the protocol layer functions are distributed in the DU and centrally controlled by the CU. However, this is not the only possibility.
  • a core network device may be a single device comprising one or more network elements, or it may be multiple devices or a group of devices, each comprising all or part of the aforementioned one or more network elements.
  • Network elements may be virtual or physical.
  • the core network may include, for example, at least one of an Evolved Packet Core (EPC), a 5G Core Network (5GCN), or a Next Generation Core (NGC).
  • EPC Evolved Packet Core
  • 5GCN 5G Core Network
  • NGC Next Generation Core
  • the following embodiments of this disclosure can be applied to the communication system 100 shown in FIG1, or to some of the main bodies, but are not limited thereto.
  • the main bodies shown in FIG1 are illustrative.
  • the communication system may include all or some of the main bodies in FIG1, or may include other main bodies outside of FIG1.
  • the number and form of each main body are arbitrary.
  • Each main body may be physical or virtual.
  • the connection relationship between the main bodies is illustrative.
  • the main bodies may not be connected or may be connected.
  • the connection can be in any way, it can be a direct connection or an indirect connection, it can be a wired connection or a wireless connection.
  • GSM Global System for Mobile communications
  • CDMA2000 Global System for Mobile communications
  • UMB Ultra Mobile Broadband
  • IEEE 802.11 Wi-Fi (registered trademark)
  • IEEE 802.16 WiMAX (registered trademark)
  • IEEE 802.20 Ultra-Wideband (UWB)
  • Bluetooth registered trademark
  • PLMN Public Land Mobile Network
  • D2D Device-to-Device
  • M2M Machine-to-Machine
  • IoT Internet of Things
  • V2X Vehicle-to-Everything
  • V2X Vehicle-to-Everything
  • systems utilizing other communication methods and next-generation systems extended from them.
  • next-generation systems extended from them can be combined (e.g., a combination of LTE or LTE-A with 5G).
  • FIG. 2 is a schematic diagram of a communication method interaction according to an embodiment of the present disclosure. As shown in Figure 2, this embodiment of the present disclosure relates to a communication method for a communication system 100, the method including:
  • terminal 101 receives reference signal resources configured by network device 102.
  • the reference signal resource may be the reference signal resource of the first reference signal, that is, the network device may configure the reference signal resource of the first signal, and the terminal may receive the first reference signal on the reference signal resource of the first reference signal.
  • the first reference signal may be a synchronization signal block (SSB).
  • SSB synchronization signal block
  • different SSBs correspond to different SSB indices. And each SSB index corresponds to a... For transmission time, the terminal can obtain downlink synchronization based on the SSB index. Different SSBs correspond to different transmission times.
  • each SSB can occupy four consecutive symbols, in the following order: Primary Synchronization Signal (PSS), PBCH, Secondary Synchronization Signal (SSS) + PBCH (the middle 12 Resource Blocks (RBs) are the SSS, and the four RBs on each side are the PBCH; that is, the SSB occupies 20 RBs), and PBCH.
  • PSS Primary Synchronization Signal
  • SSS Secondary Synchronization Signal
  • PBCH the middle 12 Resource Blocks (RBs) are the SSS, and the four RBs on each side are the PBCH; that is, the SSB occupies 20 RBs
  • PBCH Physical Broadband
  • each beam needs to transmit a Synchronization Signal Block (SSB). Therefore, the maximum number of synchronization signal blocks that can be transmitted within 5ms is 4 (below 3GHz), 8 (3GHz to 6GHz), or 64 (above 6GHz). These multiple SSBs within 5ms are called an SSB Burst Set.
  • the period of an SSB burst set can be 5ms, 10ms, 20ms, 40ms, etc. An example is shown below:
  • the time-domain distribution of the synchronization signal block is as follows: symbols 2-5 and 8-11 are occupied in every 14 symbols.
  • the maximum number of synchronization signal blocks is 4 or 8. That is, the starting symbol of each synchronization signal block is ⁇ 2,8 ⁇ +14*n, where n is 0,1 or 0,1,2,3.
  • ⁇ represents a set, and ⁇ 2,8 ⁇ means it can be any value in the set, i.e., either 2 or 8.
  • the time-domain distribution of the synchronization signal block is as follows: symbols 2-5 and 8-11 are occupied in every 14 symbols. However, at 30kHz, the maximum number of synchronization signal blocks is 4 or 8. That is, the starting symbol of each synchronization signal block is ⁇ 2,8 ⁇ +14*n, where n is 0,1 or 0,1,2,3.
  • the time-domain distribution of the synchronization signal block is as follows: symbols 4-7, 8-11, 16-19, and 20-23 are occupied out of every 28 symbols.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 4-7, 8-11, 16-19, and 20-23 are occupied out of every 28 symbols.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 8-11, 12-15, 16-19, 20-23, 32-35, 36-39, 40-43, and 44-47 are occupied out of every 56 symbols.
  • the network device can transmit multiple SSBs simultaneously, meaning different SSB indices correspond to the same transmission time. Therefore, the first reference signal can be associated with at least one second reference signal.
  • the reference signal resource may also be the reference signal resource of the second reference signal, that is, the network device may configure the reference signal resource of the second reference signal, and the terminal may receive the second reference signal on the reference signal resource of the second reference signal.
  • the second reference signal may be a Channel State Information Reference Signal (CSI-RS).
  • CSI-RS Channel State Information Reference Signal
  • the signal resource of the second reference signal may be, for example, a CSI-RS resource.
  • the SSB may be associated with at least one CSI-RS, but is not limited thereto.
  • the first reference signal and/or the second reference signal can be used to determine random access information.
  • the reference signal resource may also be protocol-defined, meaning it does not require configuration by the network device.
  • step S2101 is optional.
  • step S2102 network device 102 sends a first reference signal to terminal 101.
  • terminal 101 receives a first reference signal sent by network device 102.
  • the terminal may receive the first reference signal on reference signal resources configured on the network device.
  • the terminal may receive the first reference signal on reference signal resources specified in the protocol.
  • the reference signal resources can be determined based on the network device configuration or based on a protocol. Wherein, determining the reference signal resources based on a protocol can be understood as either specifying the reference signal resources in the protocol or predefining them in the protocol.
  • the terminal and/or network device can determine the specified reference signal resources or the predefined reference signal resources in the protocol.
  • the first reference signal may be associated with at least one second reference signal.
  • the second reference signal and the first reference signal may be in a quasi-colocation (QCL) relationship. That is, the terminal may not need to switch its receiving beam when receiving the reference signal resources of the second reference signal and when receiving the first reference signal.
  • QCL quasi-colocation
  • the second reference signal and the first reference signal may not be related by QCL. This disclosure does not limit this.
  • step S2103 terminal 101 determines the identifier of the first reference signal based on the first reference signal.
  • the terminal may determine the identifier of the first reference signal based on the first reference signal.
  • the first reference signal For an SSB, the demodulation reference signal (DMRS) sequence in the SSB and/or the payload in the physical broadcast channel (PBCH) can carry the SSB identifier.
  • the terminal can obtain the SSB identifier from the DMRS sequence and/or the payload in the PBCH.
  • DMRS demodulation reference signal
  • PBCH physical broadcast channel
  • the identifier of the first reference signal can be used to determine the random access information corresponding to the first reference signal.
  • the network device can configure a second mapping relationship to the terminal, which is used to indicate the random access information corresponding to the first reference signal.
  • the second mapping relationship is a mapping relationship between the identifier of the first reference signal and the random access information.
  • the terminal can determine the random access information corresponding to the first reference signal based on the identifier of the first reference signal and in the second mapping relationship.
  • the terminal may perform random access based on the random access information corresponding to the first reference signal.
  • step S2104 network device 102 sends a second reference signal to terminal 101.
  • terminal 101 receives a second reference signal sent by network device 102.
  • the terminal may receive the second reference signal on a reference signal resource of the second reference signal.
  • the reference signal resource of the second reference signal may be determined in at least one of the following ways: based on a protocol; based on a Physical Broadcast Channel (PBCH) sent by the network device; based on a control resource set; based on downlink control information (DCI); or based on a system information block (SIB) sent by the network device. That is, the reference signal resource of the second reference signal may be specified in a protocol, and the terminal and network device receive or send the second reference signal based on the reference signal resource specified in the protocol.
  • PBCH Physical Broadcast Channel
  • DI downlink control information
  • SIB system information block
  • the reference signal resource of the second reference signal may be determined by the network device and configured by the network device for the terminal.
  • the network device may indicate the reference signal resource of the second reference signal through the PBCH.
  • the network device may implicitly or explicitly indicate the reference signal resource of the second reference signal through a control resource set.
  • the participating signal resources of the second reference signal have a primary relationship with the resources of the control resource set, such as occupying the same symbols or the same bandwidth. Therefore, the location of the reference signal resource of the second reference signal can be obtained through the resource location of the control resource set.
  • the DCI carried by the control resource set can indicate the time-frequency resources of the second reference signal.
  • the control resource set could be, for example, CORESET#0, and its associated search space could be search space#0.
  • the network device can indicate the reference signal resources of the second reference signal through system messages. These system messages can be sent by the PDSCH scheduled by the DCI carried in CORESET#0.
  • the time-domain location of the reference signal resource of the second reference signal may include at least one of the following: on at least one symbol occupied by the first reference signal associated with the second reference signal; on the most recently available symbol of the first reference signal associated with the second reference signal; on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer; or within M time slots before or after the first reference signal associated with the second reference signal, where M is a positive integer.
  • the reference signal resource of the second reference signal may be on at least one symbol occupied by the first reference signal associated with the second reference signal.
  • the first reference signal occupies 4 symbols
  • the second reference signal occupies at least one of the 4 symbols of the first reference signal. It is understood that the specific examples above are merely illustrative, and this disclosure is not limited thereto.
  • the reference signal resource of the second reference signal can be on the nearest available symbol of the first reference signal to which the second reference signal is associated.
  • it can be on a symbol before the first reference signal or on a symbol after the first reference signal. That is, there may be no other symbols between the reference signal resource of the second reference signal and the first reference signal.
  • the reference signal resource of the second reference signal can be located on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer.
  • the reference signal resource of the second reference signal can be located on the second symbol before the first reference signal or on the second symbol after the first reference signal. For instance, if the first reference signal occupies symbols 2 to 5, and the second reference signal is located on the second symbol before the first reference signal (i.e., on symbol 0), or on the second symbol after the first reference signal (i.e., on symbol 7), then the second reference signal and the first reference signal can be in the same time slot or different time slots. It is understood that the above specific examples are merely illustrative, and this disclosure is not limited thereto.
  • the reference signal resources of the second reference signal and the first reference signal can be in the same time slot as much as possible.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources, that is, they occupy different frequency domain resources within the same symbol.
  • a symbol can be understood as a time domain resource, which may include, but is not limited to, radio subframes, time slots, micro-time slots, and symbols.
  • Frequency domain resources may include, but are not limited to, subcarriers, resource blocks (RBs), physical resource blocks (PRBs), and bandwidth.
  • the position of the first reference signal e.g., SSB index #0
  • the position of the reference signal resource e.g., CSI-RS resource
  • the reference signal resource e.g., CSI-RS resource of the second reference signal associated with the first reference signal
  • the reference signal resource e.g., CSI-RS resource
  • each synchronization signal block is ⁇ 4,8,16,20 ⁇ + 28*n, where n is 0 or n is 0 or 1.
  • ⁇ represents a set
  • ⁇ 4,8,16,20 ⁇ indicates that the elements in the set are 4, 8, 16, and 20.
  • * represents a multiplication sign.
  • the position of the first reference signal (e.g., SSB index #0) is symbol 4-7, then the position of the reference signal resource (e.g., CSI-RS resource) of the second reference signal associated with the first reference signal can be at least one of symbols 0, 1, 2, and 3, and of course, 12 and 13 are also possible.
  • the position of the first reference signal (e.g., SSB index #1) is symbol 8-11, then the position of the reference signal resource (e.g., CSI-RS resource) of the second reference signal associated with the first reference signal can be at least one of symbols 12, 13, 14, and 15 (i.e., symbols 0 and 1 in the next slot), and of course, 0, 1, 2, and 3 in the current slot are also possible.
  • the reference signal resource of the second reference signal should ideally be within the same slot as the first reference signal.
  • the reference signal resource of the second reference signal can be FDM with CORESET #0 or with the PDSCH of the DCI scheduling carried by CORESET #0.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 8-11, 12-15, 16-19, 20-23, 32-35, 36-39, 40-43, and 44-47 are occupied in every 56 symbols.
  • the positions of the first reference signal are symbols 8-11, the positions of the first reference signal (e.g., SSB index #1) are symbols 12-15, the positions of the first reference signal (e.g., SSB index #2) are symbols 16-19, the positions of the first reference signal (e.g., SSB index #3) are symbols 20-23, the positions of the first reference signal (e.g., SSB index #4) are symbols 32-35, the positions of the first reference signal (e.g., SSB index #5) are symbols 36-39, the positions of the first reference signal (e.g., SSB index #6) are symbols 40-43, and the positions of the first reference signal (e.g., SSB index #7) are symbols 4...
  • the CSI-RS resource positions for SSB indices #0 and #1 can be at least one of the symbols 0, 1, 2, 3, 4, 5, 6, 7, and of course 24, 25, 26, 27, 28, 29, 30, 31 are also possible; while the CSI-RS resource positions for SSB indices #2 and #3 can be at least one of the symbols 24, 25, 26, 27, 28, 29, 30, 31, and of course 0, 1, 2, 3, 4, 5, 6, 7 are also possible; and the CSI-RS resource positions for SSB indices #4 and #5 can be at least one of the symbols 24, 25, 26, 27, 28, 29, 30, 31, and of course 48, 49, 50, 51 are also possible.
  • the CSI-RS resource positions for SSB indexes #6 and #7 can be at least one of symbols 48, 49, 50, and 51; of course, 24, 25, 26, 27, 28, 29, 30, and 31 are also possible.
  • the reference signal resource of the second reference signal should ideally be within the same slot as the first reference signal.
  • the reference signal resource of the second reference signal can be FDM with CORESET#0 or with the PDSCH of the DCI scheduler carried by CORESET#0.
  • SSB index represents an SSB identifier or index.
  • a first reference signal may be associated with at least one second reference signal.
  • Different reference signals among the at least one reference signal may correspond to different reference signal resources.
  • Reference signal resources may correspond to beams; that is, different reference signals among the at least one reference signal may correspond to different beams or the same beam.
  • different reference signals among the at least one reference signal may correspond to different port information of the same reference signal resource.
  • Port information may correspond to beams; that is, different reference signals among the at least one reference signal may correspond to different beams or the same beam.
  • port information may include at least one of a port, a port group, and an antenna subarray element. That is, different port information corresponding to different reference signal resources may be different ports corresponding to different reference signal resources, different port groups corresponding to different reference signal resources, or different antenna subarray elements corresponding to different reference signal resources.
  • At least two of the at least one second reference signal occupy the same symbol.
  • a symbol can be understood as a time-domain location.
  • Time-domain locations include, but are not limited to, radio subframes, time slots, micro-time slots, symbols, etc.
  • At least two second reference signals occupying the same symbol means that at least two second reference signals overlap in their time-domain locations.
  • step S2105 terminal 101 determines the identifier of the second reference signal based on the second reference signal.
  • the terminal may determine the identifier of the second reference signal based on the second reference signal.
  • the identifier of the second reference signal can be used to determine the random access information corresponding to the second reference signal.
  • a network device can configure a first mapping relationship to a terminal, which is used to indicate the random access information corresponding to the second reference signal.
  • the first mapping relationship is a mapping relationship between the identifier of the second reference signal and random access information.
  • the terminal can determine the random access information corresponding to the second reference signal based on the identifier of the second reference signal in the first mapping relationship.
  • the terminal may perform random access based on the random access information corresponding to the second reference signal.
  • Step S2106 terminal 101 determines random access information.
  • the terminal can determine the first random access information corresponding to the second reference signal. For example, the terminal can determine the first random access information corresponding to the second reference signal based on the identifier of the second reference signal in a second mapping relationship.
  • the first mapping relationship is used to indicate the random access information corresponding to the second reference signal; for example, the first mapping relationship is a mapping relationship between the identifier of the second reference signal and a first random access resource.
  • the terminal can determine the first random access information corresponding to the second reference signal based on the first mapping relationship and/or the terminal type.
  • the terminal type may include, for example, a first type and a second type.
  • the first type may be a near-field terminal
  • the second type may be a far-field terminal, but is not limited thereto.
  • the first random access information corresponding to the second reference signal can be determined in the first mapping relationship.
  • the network device can send multiple reference signals at the same time, and the multiple reference signals may include at least one second reference signal.
  • the terminal can determine the first random access information corresponding to the second reference signal. Therefore, for different reference signals sent at the same time, the determined random access information is different, and the determined random resource information is more targeted.
  • the first random access information of the second reference signal can also be determined based on the first mapping relationship; this disclosure does not limit this.
  • the terminal can perform random access based on the determined first random access information.
  • at least one second reference signal is associated with a first reference signal, such as an SSB, which can be used for downlink synchronization.
  • the first type may be a near-field terminal
  • the second type may be a far-field terminal, but is not limited thereto.
  • the terminal can determine the second random access information corresponding to the first reference signal from the second mapping relationship.
  • the network device can send a reference signal at the same time.
  • the first reference signal may not be associated with the second reference signal, or may only be associated with one second reference signal, in which case the second random access information corresponding to the first reference signal can be directly determined from the second mapping relationship.
  • network devices can transmit multiple reference signals simultaneously.
  • a first reference signal may be associated with multiple second reference signals, but the differences between the different second reference signals are small. Therefore, multiple reference signals transmitted at the same time can share random access information. That is, the second random access information corresponding to the first reference signal can be directly determined.
  • the terminal can determine the second random access information corresponding to the first reference signal. Then, from the second random access information, it determines the first random access information corresponding to the second reference signal. That is, the first random access information is a subset of the second random access information, and the second random access resource is used to determine the first random access resource. For example, when the terminal type is a first type, the second random access information corresponding to the first reference signal can be determined. Then, from the second random access information, the first random access information corresponding to the second reference signal can be determined, but this is not limited to this.
  • a terminal is classified as a Type I terminal if the difference between the measurement results of at least two first reference signals occupying the same symbol but different frequency domain resources is greater than or equal to a threshold. That is, a terminal can determine whether it is a Type I terminal based on the measurement results of at least two first reference signals occupying the same symbol but different frequency domain resources.
  • the measurement results include the Layer 1 reference signal received power (RSRP) and the layer 1 signal to interference plus noise ratio (SINR).
  • the RSRP can be either Layer 1 (L1) or Layer 3 (L3) RSRP
  • the SINR can be either L1 or L3 SINR.
  • random access information includes at least one of the following: random access channel occupancy (RO); random access preamble.
  • RO random access channel occupancy
  • At least one of the random access information determined by the first type of terminal and the second type of terminal is different.
  • multiple second reference signals are transmitted at the same time, some to cover far-field terminals and some to cover near-field terminals, while both the first type of terminal and the second type of terminal determine the RO and preamble, thus determining different random access information.
  • the first reference signal is to cover the second type of terminal
  • the second reference signal is to cover the first type of terminal.
  • the second type of terminal determines a portion of the random access resources corresponding to the first reference signal based on the first reference signal and the terminal type for random access, while the other portion of the random access resources corresponding to the first reference signal is used by the first type of terminal to determine the corresponding random access resources based on the second reference signal.
  • the terminal can perform random access based on determined random access information. For example, a determined random access preamble can be sent on a determined RO. Of course, a determined random access preamble can also be sent on other ROs, or other random access preambles can be sent on determined ROs; this disclosure does not limit this.
  • step S2107 terminal 101 sends a measurement report to network device 102.
  • network device 102 receives a measurement report sent by terminal 101.
  • the measurement report may also be referred to as a beam report, but is not limited thereto.
  • the measurement report includes at least one of the following: a reference signal resource identifier corresponding to the first reference signal/second reference signal, a measurement result of the first reference signal/second reference signal, a port identifier corresponding to the first reference signal/second reference signal, and a port group identifier corresponding to the first reference signal/second reference signal.
  • the measurement results may include L1-RSRP and/or L1-SINR.
  • the measurement report includes at least one of the following: a group-based beam report; or a non-group-based beam report.
  • the combined measurement report includes at least one set of reported content, and each set of reported content includes at least two sets of identifiers; wherein each set of identifiers includes at least one of the following: an identifier of a reference signal resource; a port identifier corresponding to the reference signal resource; and a port group identifier corresponding to the reference signal resource.
  • the identifiers of the reference signal resources included in different sets of identifiers are different; or in at least two sets of identifiers, the identifiers of the reference signal resources included in different sets of identifiers are the same, but the port identifiers corresponding to the reference signal resources or the port group identifiers corresponding to the reference signal resources are different. It can be understood that the beam direction of the same port corresponding to different reference signal resources can be the same, while the same port points to different beam directions at the same time.
  • the communication method involved in the embodiments of this disclosure may include at least one of steps S2101 to S2107.
  • steps S2102 and S2103 may be implemented as independent embodiments, but are not limited thereto.
  • steps S2101, S2104 to S2107 may be omitted or substituted in different embodiments.
  • Figure 3a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3a, this embodiment of the present disclosure relates to a communication method executed by terminal 101, the method including:
  • Step S3101 Obtain reference signal resources.
  • step S3101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • terminal 101 receives reference signal resources configured by network device 102, but is not limited thereto; it may also receive first information sent by other entities.
  • terminal 101 acquires reference signal resources as defined by a protocol.
  • terminal 101 obtains reference signal resources from upper layer(s).
  • terminal 101 performs processing to obtain reference signal resources.
  • step S3101 is omitted, and terminal 101 autonomously implements the function indicated by the reference signal resource, or the above function is defaulted or set to default.
  • Step S3102 Obtain the first reference signal.
  • step S3102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • terminal 101 receives a first reference signal configured by network device 102, but is not limited thereto; it may also receive first information sent by other entities.
  • terminal 101 acquires a first reference signal defined by a protocol.
  • terminal 101 obtains a first reference signal from upper layer(s).
  • terminal 101 performs processing to obtain a first reference signal.
  • step S3102 is omitted, and the terminal 101 autonomously implements the function indicated by the first reference signal, or the above function is defaulted or set to default.
  • Step S3103 Determine the identifier of the first reference signal based on the first reference signal.
  • step S3103 can be found in the optional implementation of step S2103 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • the identifier of the first reference signal is determined based on the first reference signal.
  • Step S3104 Obtain the second reference signal.
  • step S3104 can be found in the optional implementation of step S2104 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • terminal 101 receives a second reference signal configured by network device 102, but is not limited thereto; it may also receive first information sent by other entities.
  • terminal 101 acquires a second reference signal defined by a protocol.
  • terminal 101 obtains a second reference signal from upper layer(s).
  • terminal 101 performs processing to obtain a second reference signal.
  • step S3104 is omitted, and the terminal 101 autonomously implements the function indicated by the second reference signal, or the above function is defaulted or set to default.
  • Step S3105 Determine the identifier of the second reference signal based on the second reference signal.
  • step S3105 can be found in the optional implementation of step S2105 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • the identifier of the second reference signal is determined based on the second reference signal.
  • Step S3106 Determine the random access information.
  • step S3106 can be found in the optional implementation of step S2106 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • Step S3107 Send the measurement report.
  • step S3107 can be found in the optional implementation of step S2107 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • terminal 101 may send a measurement report to network device 102, but is not limited to that; it may also send a measurement report to other entities.
  • Figure 3b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 3b, this embodiment of the present disclosure relates to a communication method executed by terminal 101, the method including:
  • Step S3201 Obtain the first reference signal.
  • step S3201 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • terminal 101 receives a first reference signal configured by network device 102, but is not limited thereto; it may also receive first information sent by other entities.
  • terminal 101 acquires a first reference signal defined by a protocol.
  • terminal 101 obtains a first reference signal from upper layer(s).
  • terminal 101 performs processing to obtain a first reference signal.
  • step S3201 is omitted, and terminal 101 autonomously implements the function indicated by the first reference signal, or the above function is defaulted or set to default.
  • Step S3202 Determine the identifier of the first reference signal based on the first reference signal.
  • step S3202 can be found in the optional implementation of step S2103 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • Figure 4a is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4a, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method including:
  • Step S4101 Send reference signal resources.
  • step S4101 can be found in the optional implementation of step S2101 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • network device 102 sends reference signal resources to terminal 101, but is not limited thereto; it may also send them to other terminals.
  • the body transmits reference signal resources.
  • Step S4102 Send the first reference signal.
  • step S4102 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • network device 102 sends a first reference signal to terminal 101, but is not limited thereto; it may also send the first reference signal to other entities.
  • Step S4103 Send the second reference signal.
  • step S4103 can be found in the optional implementation of step S2104 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • network device 102 sends a second reference signal to terminal 101, but is not limited thereto; it may also send the second reference signal to other entities.
  • Step S4104 Obtain the measurement report.
  • step S4104 can be found in the optional implementation of step S2107 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • network device 102 receives measurement reports sent by terminal 101, but is not limited thereto, and may also receive measurement reports sent by other entities.
  • Figure 4b is a flowchart illustrating a communication method according to an embodiment of the present disclosure. As shown in Figure 4b, this embodiment of the present disclosure relates to a communication method executed by a network device 102, the method comprising:
  • Step S4201 Send the first reference signal.
  • step S4201 can be found in the optional implementation of step S2102 in Figure 2, as well as other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • network device 102 sends a first reference signal to terminal 101, but is not limited thereto; it may also send the first reference signal to other entities.
  • Figure 5 is a schematic diagram of a communication method according to an embodiment of the present disclosure. As shown in Figure 5, the present disclosure relates to a communication method, which includes:
  • step S5101 network device 102 sends a first reference signal to terminal 101.
  • step S5101 can be found in S2102 of Figure 2, and other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • step S5102 terminal 101 receives the first reference signal sent by network device 102.
  • step S5102 can be found in S2102 of Figure 2, and other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • step S5103 terminal 101 determines the identifier of the first reference signal based on the first reference signal.
  • step S5103 can be found in S2103 of Figure 2, and other related parts in the embodiments involved in Figure 2, which will not be repeated here.
  • This disclosure provides a communication method as follows:
  • the terminal determines at least one reference signal resource and performs measurements on at least one reference signal on the at least one reference signal resource to obtain measurement results (L1-RSRP/L1-SINR) corresponding to each reference signal in the at least one reference signal.
  • the reference signal resources corresponding to at least one reference signal overlap on at least one symbol, i.e., domain overlap.
  • the terminal determines at least one reference signal resource location in the following manner:
  • base station configuration includes SSB or CSI-RS resource locations.
  • the protocol specifies the location of SSB or CSI-RS resources.
  • the reference signal resource is a CSI-RS resource
  • the reference signal is a CSI-RS
  • at least one reference signal corresponds to different CSI-RS resources, or at least one reference signal corresponds to different ports/port groups or different subarray units of the base station for the same CSI-RS resource (hereinafter described by port).
  • the reference signal resource is an SSB resource
  • the reference signal is an SSB
  • different reference signals in at least one reference signal correspond to different SSB resources, or different reference signals in at least one reference signal correspond to different ports of the same SSB resource.
  • the protocol specifies the location of SSB resources. Different SSBs correspond to different SSB resource locations, meaning that different SSBs can communicate using FDM, and different SSBs correspond to SSB resources in different frequency domains. Traditionally, each SSB corresponds to a different SSB index, and the SSB index corresponds to different transmission times. The terminal can obtain downlink synchronization based on the SSB index.
  • each synchronization signal block occupies four consecutive symbols, in the following order: PSS, PBCH, SSS+PBCH (the middle 12 RBs are SSS, and the four RBs on each side are PBCH, i.e., the SSB occupies 20 RBs), and PBCH.
  • Some subcarriers are DMRS.
  • the subcarrier spacing of the synchronization signal block can be 15kHz, 30kHz, 120kHz, and 240kHz. All synchronization signal blocks are transmitted within a 5ms time interval.
  • each beam needs to transmit an SSB when there is a beam, so the maximum number of synchronization signal blocks that can be transmitted within 5ms is 4 (below 3GHz), 8 (3GHz to 6GHz), or 64 (above 6GHz).
  • the multiple SSBs within these 5ms are called SSB burst sets.
  • the period of an SSB burst set can be 5ms, 10ms, 20ms, 40ms, etc. For example:
  • the time-domain distribution of the synchronization signal block is as follows: symbols 2-5 and 8-11 are occupied in every 14 symbols.
  • the maximum number of synchronization signal blocks is 4 or 8. That is, the starting symbol of each synchronization signal block is ⁇ 2,8 ⁇ +14*n, where n is 0,1 or 0,1,2,3.
  • ⁇ represents a set, and ⁇ 2,8 ⁇ means it can be any value in the set, i.e., either 2 or 8.
  • the time-domain distribution of the synchronization signal block is as follows: symbols 2-5 and 8-11 are occupied in every 14 symbols. However, at 30kHz, the maximum number of synchronization signal blocks is 4 or 8. That is, the starting symbol of each synchronization signal block is ⁇ 2,8 ⁇ +14*n, where n is 0,1 or 0,1,2,3.
  • the time-domain distribution of the synchronization signal block is as follows: symbols 4-7, 8-11, 16-19, and 20-23 are occupied out of every 28 symbols.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 4-7, 8-11, 16-19, and 20-23 are occupied out of every 28 symbols.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 8-11, 12-15, 16-19, 20-23, 32-35, 36-39, 40-43, and 44-47 are occupied out of every 56 symbols.
  • the terminal after the terminal receives the SSB and obtains the SSB index from the DMRS sequence in the SSB or the payload in the DMRS sequence and PBCH, it can determine which symbol in which slot within 5ms corresponds to the SSB, thus achieving downlink synchronization.
  • an SSB is configured with at least one associated CSI-RS resource.
  • At least one associated CSI-RS resource can be categorized into two cases:
  • a CSI-RS resource is configured with one or more ports, with different ports corresponding to different beams.
  • Scenario 2 Multiple CSI-RS resources, each configured with one or two ports (the same number of ports as a traditional CSI-RS used for beam measurement). Each CSI-RS resource corresponds to a different beam.
  • the terminal can receive the reference signal on the SSB and the CSI-RS resource associated with the SSB without switching the receive beam; that is, the terminal can assume that the CSI-RS and the SSB have a QCL relationship.
  • terminal behavior includes at least one of the following
  • Behavior 1 The terminal measures the RSRP (L1-RSRP or L3-RSRP) corresponding to the SSB.
  • Behavior 2 The terminal determines the RO and/or random access preamble corresponding to the SSB based on the first mapping relationship. For example, the base station configuration (based on system information) or the protocol specifies the first mapping relationship between the SSB and the RO/random access preamble.
  • Action 4 The terminal determines the RO and/or random access preamble corresponding to the CSI-RS based on the second mapping relationship. This only requires determining the second mapping relationship between multiple CSI-RS resources or multiple ports of a single CSI-RS resource and the RO and/or random access preamble corresponding to the SSB. In other words, Action 2 has already determined the first RO/or first random access preamble subset corresponding to the SSB, while Action 4 determines which part of the first RO/or first random access preamble subset corresponds to different CSI-RS.
  • the second mapping relationship is configured by the base station (based on system information) or specified by the protocol.
  • Action 5 The terminal sends the determined random access preamble on the determined RO.
  • the terminal behavior includes the above five behaviors, that is, near-field UEs need to use the RO and random access preamble corresponding to CSI-RS; for far-field UEs, the above behavior four may not be included, that is, far-field UEs directly use the RO and random access preamble corresponding to SSB.
  • the terminal determines whether it is a near-field UE or a far-field UE in the following way: if the difference between the L1-RSRP corresponding to different CSI-RS resources or different CSI-RS ports is greater than a threshold value, it is a near-field UE; otherwise, it is a far-field UE.
  • the time-domain location of the CSI-RS resource associated with the SSB can be specified by protocol, or indicated by PBCH (i.e., MIB information master information block), or by CORESET#0, or by the system information indication (i.e., SIB, system information block) carried by the PDSCH scheduled by CORESET#0. Its possible locations are as follows:
  • TDM time division multiplexing
  • FDM FDM with SSB
  • the position of the first reference signal e.g., SSB index #0
  • the position of the reference signal resource e.g., CSI-RS resource
  • the position of the reference signal resource e.g., CSI-RS resource
  • the position of the reference signal resource e.g., CSI-RS resource of the second reference signal associated with the first reference signal can be at least one of symbols 6, 7, 12, and 13, and of course, 0 and 1 are also possible.
  • the reference signal resource of the second reference signal and the first reference signal should ideally be within the same slot.
  • the reference signal resources of the second reference signal can be frequency-division multiplexed (FDM) with CORESET#0 or with the Physical Downlink Shared Channel (PDSCH) carried by CORESET#0 and scheduled by DCI. This PDSCH is used to transmit System Information Blocks (SIBs).
  • SIBs System Information Blocks
  • each synchronization signal block is ⁇ 4,8,16,20 ⁇ + 28*n, where n is 0 or n is 0 or 1.
  • ⁇ represents a set
  • ⁇ 4,8,16,20 ⁇ indicates that the elements in the set are 4, 8, 16, and 20.
  • * represents a multiplication sign.
  • the position of the first reference signal (e.g., SSB index #0) is symbol 4-7, then the position of the reference signal resource (e.g., CSI-RS resource) of the second reference signal associated with the first reference signal can be at least one of symbols 0, 1, 2, and 3, and of course, 12 and 13 are also possible.
  • the position of the first reference signal (e.g., SSB index #1) is symbol 8-11, then the position of the reference signal resource (e.g., CSI-RS resource) of the second reference signal associated with the first reference signal can be at least one of symbols 12, 13, 14, and 15 (i.e., symbols 0 and 1 in the next slot), and of course, 0, 1, 2, and 3 in the current slot are also possible.
  • the reference signal resource of the second reference signal should ideally be within the same slot as the first reference signal.
  • the reference signal resource of the second reference signal can be FDM with CORESET #0 or with the PDSCH of the DCI scheduling carried by CORESET #0.
  • the time-domain distribution of the synchronization signal blocks is as follows: symbols 8-11, 12-15, 16-19, 20-23, 32-35, 36-39, 40-43, and 44-47 are occupied in every 56 symbols.
  • the positions of the first reference signal are symbols 8-11, the positions of the first reference signal (e.g., SSB index #1) are symbols 12-15, the positions of the first reference signal (e.g., SSB index #2) are symbols 16-19, the positions of the first reference signal (e.g., SSB index #3) are symbols 20-23, the positions of the first reference signal (e.g., SSB index #4) are symbols 32-35, the positions of the first reference signal (e.g., SSB index #5) are symbols 36-39, the positions of the first reference signal (e.g., SSB index #6) are symbols 40-43, and the positions of the first reference signal (e.g., SSB index #7) are symbols 4...
  • the CSI-RS resource positions for SSB indices #0 and #1 can be at least one of the symbols 0, 1, 2, 3, 4, 5, 6, 7, and of course 24, 25, 26, 27, 28, 29, 30, 31 are also possible; while the CSI-RS resource positions for SSB indices #2 and #3 can be at least one of the symbols 24, 25, 26, 27, 28, 29, 30, 31, and of course 0, 1, 2, 3, 4, 5, 6, 7 are also possible; and the CSI-RS resource positions for SSB indices #4 and #5 can be at least one of the symbols 24, 25, 26, 27, 28, 29, 30, 31, and of course 48, 49, 50, 51 are also possible.
  • the CSI-RS resource positions for SSB indexes #6 and #7 can be at least one of symbols 48, 49, 50, and 51; of course, 24, 25, 26, 27, 28, 29, 30, and 31 are also possible.
  • the reference signal resource of the second reference signal should ideally be within the same slot as the first reference signal.
  • the reference signal resource of the second reference signal can be FDM with CORESET#0 or with the PDSCH of the DCI scheduler carried by CORESET#0.
  • the terminal sends a measurement report, which includes at least one of the following: a reference signal resource identifier, an L1-RSRP/L1-SINR, a port identifier, and a port group identifier.
  • the measurement report includes a group-based beam report or a non-group-based beam report.
  • the group-based beam report contains at least one group, and each group contains at least two different identity (ID) combinations.
  • the ID combination includes a reference signal resource ID and a port/port group ID; if either one is different, the ID combination is different.
  • the reference signal resource IDs corresponding to the ID combinations contained within a Group may be the same.
  • the port/port group IDs corresponding to the ID combinations contained in a Group cannot be the same. This is because the beam direction of the same port corresponding to different reference signal resources is the same, and the same port cannot point to different beam directions at the same time.
  • Figure 6a is a schematic diagram of the terminal structure proposed in an embodiment of this disclosure.
  • the terminal 6100 may include a transceiver module 6101 and a processing module 6102.
  • the transceiver module 6101 is used to receive a first reference signal sent by a network device;
  • the processing module 6102 is used to determine an identifier of the first reference signal based on the first reference signal, and the identifier is used to determine random access information.
  • the processing module 6102 is further configured to: determine that the terminal determines a reference signal resource corresponding to at least one second reference signal; different reference signals in the at least one second reference signal correspond to different reference signal resources; or, different reference signals in the at least one second reference signal correspond to different port information of the same reference signal resource.
  • At least two of the at least one second reference signal occupy the same symbol.
  • the reference signal resources are determined based on the configuration of the network device; and/or, the reference signal resources are determined based on the protocol.
  • the first reference signal includes a synchronization signal block (SSB); and/or, the second reference signal includes a channel state information reference signal (CSI-RS).
  • SSB synchronization signal block
  • CSI-RS channel state information reference signal
  • At least one second reference signal includes one or more second reference signals associated with the first reference signal.
  • the processing module 6102 is further configured to: determine the first random access information corresponding to the second reference signal based on the first mapping relationship and/or the terminal type; wherein the first mapping relationship is used to indicate the random access information corresponding to the second reference signal; and the terminal performs a random access process based on the first random access information.
  • the processing module 6102 is further configured to: determine the second random access information corresponding to the first reference signal based on the second mapping relationship; wherein the second mapping relationship is used to indicate the random access information corresponding to the first reference signal; the second random access information is used to determine the first random access information, and the first random access information is a subset of the second random access information.
  • the terminal type is a first type.
  • the terminal type is a first type if the difference between the measurement results corresponding to at least two second reference signals that occupy the same symbol but occupy different frequency domain resources is greater than or equal to a threshold.
  • the processing module 6102 is further configured to: determine second random access information corresponding to the identifier of the first reference signal based on the second mapping relationship and/or the terminal type; wherein the second mapping relationship is used to indicate the random access information corresponding to the first reference signal; and the terminal performs a random access process based on the second random access information.
  • the terminal type is a second type.
  • the terminal type is the second type if the difference between the measurement results of at least two second reference signals that occupy the same symbol but occupy different frequency domain resources is less than a threshold.
  • the random access information includes at least one of random access channel timing (RO) and random access preamble; at least one of the random access information determined by the first type of terminal and the second type of terminal is different.
  • RO random access channel timing
  • the time-domain location of the reference signal resource corresponding to the second reference signal is determined in at least one of the following ways: based on the protocol; based on the physical broadcast channel PBCH sent by the network device; based on the control resource set; based on the downlink control information DCI; or based on the system message sent by the network device.
  • the time-domain location of the reference signal resource corresponding to the second reference signal includes at least one of the following: on at least one symbol occupied by the first reference signal associated with the second reference signal; on the most recently available symbol of the first reference signal associated with the second reference signal; on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer; or in the Mth time slot before or after the first reference signal associated with the second reference signal, where M is a positive integer.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources.
  • the mapping relationship is determined based on the configuration of the network device; and/or, the mapping relationship is determined based on the protocol; the mapping relationship includes at least one of a first mapping relationship and a second mapping relationship.
  • Figure 6b is a schematic diagram of the structure of a network device proposed in an embodiment of this disclosure.
  • the network device 6200 may include: a transceiver module 6201, used to send a first reference signal to a terminal, the first reference signal being used to determine an identifier of the first reference signal, and the identifier being used to determine random access information.
  • the transceiver module 6201 is further configured to: configure reference signal resources to the terminal, wherein the reference signal resources correspond to at least one second reference signal; different reference signals among the at least one second reference signal correspond to different reference signal resources; or, different reference signals among the at least one second reference signal correspond to different port information of the same reference signal resource.
  • At least two of the at least one second reference signal occupy the same symbol.
  • the first reference signal includes a synchronization signal block (SSB); and/or, the second reference signal includes a channel state information reference signal.
  • SSB synchronization signal block
  • At least one second reference signal includes one or more second reference signals associated with the first reference signal.
  • the transceiver module 6201 is further configured to: configure a mapping relationship to the terminal, the mapping relationship including at least one of a first mapping relationship and a second mapping relationship, the first mapping relationship being used to indicate random access information corresponding to the second reference signal, and the second mapping relationship being used to indicate random access information corresponding to the first reference signal.
  • the time-domain location of the reference signal resource corresponding to the second reference signal is determined using at least one of the following methods: base As determined by the protocol; or by the network equipment.
  • the time-domain location of the reference signal resource corresponding to the second reference signal includes at least one of the following: on at least one symbol occupied by the first reference signal associated with the second reference signal; on the most recently available symbol of the first reference signal associated with the second reference signal; on the Nth symbol before or after the first reference signal associated with the second reference signal, where N is a positive integer; or in the Mth time slot before or after the first reference signal associated with the second reference signal, where M is a positive integer.
  • the first reference signal and the second reference signal occupy different symbols; and/or, the first reference signal and the second reference signal occupy different frequency domain resources.
  • the network device 6200 may further include a processing module 6202 for processing the steps involved in the embodiments of this disclosure.
  • Figure 7a is a schematic diagram of the structure of a communication device 7100 according to an embodiment of this disclosure.
  • the communication device 7100 can be a network device, a terminal, or a chip, chip system, or processor that supports the network device in implementing any of the above methods; alternatively, the network device can be an access network device, a core network device, etc.
  • the terminal can be a user equipment, etc.
  • the communication device 7100 can be used to implement the methods described in the above method embodiments; for details, please refer to the descriptions in the above method embodiments.
  • the communication device 7100 includes one or more processors 7101.
  • the processor 7101 can be a general-purpose processor or a dedicated processor, such as a baseband processor or a central processing unit (CPU).
  • the baseband processor can be used to process communication protocols and communication data, while the CPU can be used to control the communication device, execute programs, and process program data.
  • the communication device 7100 is used to execute any of the above methods.
  • the communication device can be a base station, a baseband chip, a terminal device, a terminal device chip, a DU (Distributed Unit), or a CU (Computer Integrated Circuit), etc.
  • the communication device 7100 further includes one or more memories 7102 for storing instructions.
  • the memories 7102 may also be located outside the communication device 7100.
  • the communication device 7100 further includes one or more transceivers 7103.
  • the transceivers 7103 perform communication steps S2101 such as sending and/or receiving in the above method, and the processor 7101 performs other steps.
  • a transceiver may include a receiver and/or a transmitter, which may be separate or integrated.
  • the terms transceiver, transceiver unit, transceiver, transceiver circuit, etc. may be used interchangeably; the terms transmitter, transmitting unit, transmitter, transmitting circuit, etc., may be used interchangeably; and the terms receiver, receiving unit, receiver, receiving circuit, etc., may be used interchangeably.
  • the communication device 7100 may include one or more interface circuits 7104.
  • the interface circuit 7104 is connected to the memory 7102, and the interface circuit 7104 can be used to receive signals from the memory 7102 or other devices, and can be used to send signals to the memory 7102 or other devices.
  • the interface circuit 7104 can read instructions stored in the memory 7102 and send the instructions to the processor 7101.
  • the communication device 7100 described in the above embodiments may be a network device or a terminal, but the scope of the communication device 7100 described in this disclosure is not limited thereto, and the structure of the communication device 7100 may not be limited by FIG. 7a.
  • the communication device may be a standalone device or a part of a larger device.
  • the communication device may be: (1) a standalone integrated circuit IC, or chip, or chip system or subsystem; (2) a collection of one or more ICs, optionally, the IC collection may also include storage components for storing data and programs; (3) an ASIC, such as a modem; (4) a module that can be embedded in other devices; (5) a receiver, terminal device, smart terminal device, cellular phone, wireless device, handheld device, mobile unit, vehicle device, network device, cloud device, artificial intelligence device, etc.; (6) others, etc.
  • Figure 7b is a schematic diagram of the structure of chip 7200 according to an embodiment of this disclosure.
  • the communication device 7100 can be a chip or a chip system
  • the schematic diagram of the chip 7200 shown in Figure 7b can be referred to, but is not limited thereto.
  • Chip 7200 includes one or more processors 7201, which are used to perform any of the above methods.
  • chip 7200 further includes one or more interface circuits 7202.
  • the interface circuit 7202 is connected to memory 7203, and the interface circuit 7202 can be used to receive signals from memory 7203 or other devices, and the interface circuit 7202 can be used to send signals to memory 7203 or other devices.
  • the interface circuit 7202 can read instructions stored in memory 7203 and send the instructions to processor 7201.
  • This disclosure also provides a program product that, when executed by the communication device 7100, causes the communication device 7100 to perform any of the above methods.
  • the program product is a computer program product.

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Abstract

本公开涉及通信方法、终端、网络设备及存储介质。通信方法包括：终端接收网络设备发送的第一参考信号；所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。本公开实现灵活确定随机接入信息，适应多变的情况，提高通信效率。

Description

通信方法、终端、网络设备及存储介质 技术领域
本公开涉及通信技术领域，尤其涉及通信方法、终端、网络设备及存储介质。
背景技术
在通信场景中，为了提高更高的频谱效率，引入了高频段和大规模天线阵列。大规模天线阵列能够提供更大的波束成型增益，有效补偿高频段带来的传输损耗。
对于天线阵列，其电磁场可以划分为近场和远场。若终端位于远场，终端接收到的电磁波可能是平面波，针对终端的波束是一个指向终端的二维(2dimension，2D)指向性波束。若终端位于近场，那么终端接收到的电磁波可能是球面波，针对终端的波束是一个环绕终端的三维(3dimension，3D)波束。
发明内容
由于终端位于远场和近场，接收波束存在不同，因此终端如何基于下行信号进行下行同步以及随机接入等问题是急需解决的。
本公开实施例提出了通信方法、终端、网络设备及存储介质。
根据本公开实施例的第一方面，提出了一种通信方法，方法包括：终端接收网络设备发送的第一参考信号；所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
根据本公开实施例的第二方面，提出了一种通信方法，方法包括：网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
根据本公开实施例的第三方面，提出了一种通信方法，方法包括：网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息；所述终端接收所述网络设备发送的第一参考信号；所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
根据本公开实施例的第四方面，提出了一种终端，包括：收发模块，用于接收网络设备发送的第一参考信号；处理模块，用于基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
根据本公开实施例的第五方面，提出了一种网络设备，包括：收发模块，用于向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
根据本公开实施例的第六方面，提出了一种终端，包括：一个或多个处理器；其中，处理器用于执行第一方面及第一方面中的任一项通信方法。
根据本公开实施例的第七方面，提出了一种网络设备，包括：一个或多个处理器；其中，处理器用于执行第二方面及第二方面中的任一项通信方法。
根据本公开实施例的第八方面，提出了一种通信系统，包括终端、网络设备，其中，终端被配置为实现第一方面及第一方面中的任一项通信方法，网络设备被配置为实现第二方面及第二方面中的任一项通信方法。
根据本公开实施例的第九方面，提出了一种存储介质，存储介质存储有指令，当指令在通信设备上运行时，使得通信设备执行如第一方面及第一方面中的任一项或第二方面及第二方面中的任一项通信方法。
根据本公开实施例的第十方面，提出了一种程序产品，包括计算机程序，所述计算机程序被通信设备执行时，使得所述通信设备执行如第一方面及第一方面中的任一项或第二方面及第二方面中的任一项所述的通信方法。
本公开通过接收第一参考信号，并基于第一参考信号确定第一参考信号的标识，标识可以用于确定随机接入信息，以实现灵活确定随机接入信息，适应多变的情况，提高通信效率。
附图说明
为了更清楚地说明本公开实施例中的技术方案，以下对实施例描述所需的附图进行介绍，以下附图仅仅是本公开的一些实施例，不对本公开的保护范围造成具体限制。
图1a是本公开示例性实施例示出的近场和远场示意图。
图1b是本公开示例性实施例示出的远场UE接收电磁波示意图。
图1c是本公开示例性实施例示出的近场UE接收电磁波示意图。
图1d是根据本公开实施例示出的通信系统架构示意图。
图2是根据本公开实施例示出的一种通信方法交互示意图。
图3a是根据本公开实施例示出的通信方法流程图。
图3b是根据本公开实施例示出的通信方法流程图。
图4a是根据本公开实施例示出的通信方法流程图。
图4b是根据本公开实施例示出的通信方法流程图。
图5是根据本公开实施例示出的一种通信方法交互示意图。
图6a是根据本公开实施例示出的终端的结构示意图。
图6b是根据本公开实施例示出的网络设备的结构示意图。
图7a是根据一示例性实施例示出的一种通信设备的结构示意图。
图7b是根据一示例性实施例示出的一种芯片结构示意图。
具体实施方式
本公开实施例提出了通信方法、终端、网络设备及存储介质。
第一方面，本公开实施例提出了一种通信方法，方法包括：终端接收网络设备发送的第一参考信号；所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
在上述实施例中，通过接收第一参考信号，并基于第一参考信号确定第一参考信号的标识，标识可以用于确定随机接入信息，以实现灵活确定随机接入信息，适应多变的情况，提高通信效率。
在第一方面的一些可选实施例中，所述方法还包括：所述终端确定至少一个第二参考信号对应的参考信号资源；所述至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，所述至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
在上述实施例中，终端可以确定至少一个第二参考信号对应的参考信号资源，以便于使第一参考信号关联至少一个第二参考信号。其中，至少一个第二参考信号中不同的参考信号可以对应不同参考信号资源，即对应不同波束。或者，至少一个第二参考信号中不同的参考信号可以对应同一参考信号资源的不同端口信息，即对应不同波束。
在第一方面的一些可选实施例中，所述至少一个第二参考信号中的至少两个第二参考信号占用同样的符号。
在上述实施例中，至少一个第二参考信号中的至少两个第二参考信号占用同样的符号，即至少两个第二参考信号在同一时间发送，以降低波束的扫描时间。
在第一方面的一些可选实施例中，其特征在于，所述参考信号资源基于网络设备的配置确定；和/或，所述参考信号资源基于协议确定。
在上述实施例中，参考信号资源可以是网络设备配置的，也可以是协议规定的，以灵活地应对不同情况，提高通信效率。
在第一方面的一些可选实施例中，所述第一参考信号包括同步信号块SSB；和/或，所述第二参考信号包括信道状态信息参考信号CSI-RS。
在上述实施例中，第一参考信号可以是SSB，第二参考信号可以是CSI-RS，以提高通信效率。
在第一方面的一些可选实施例中，所述至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
在上述实施例中，至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号，以用于终端基于关联的至少一个第二参考信号准确地确定随机接入信息。
在第一方面的一些可选实施例中，所述方法还包括：所述终端基于第一映射关系和/或终端类型，确定所述第二参考信号对应的第一随机接入信息；其中，所述第一映射关系用于指示所述第二参考信号对应的随机接入信息；所述终端基于所述第一随机接入信息，进行随机接入过程。
在上述实施例中，终端可以基于第一映射关系和/或终端类型，确定第二参考信号。
在第一方面的一些可选实施例中，所述方法还包括：所述终端基于第二映射关系，确定第一参考信号对应的第二随机接入信息；其中，所述第二映射关系用于指示第一参考信号对应的随机接入信息；所述第二随机接入信息用于确定第一随机接入信息，所述第一随机接入信息是所述第二随机接入信息的子集。
在上述实施例中，终端可以先确定第一参考信号对应的第二随机接入信息，并从第二随机接入信息中确定第二参考信号对应的第一随机接入信息，从而确定出更准确的随机接入信息，提高效率。
在第一方面的一些可选实施例中，所述终端类型为第一类型。
在上述实施例中，终端类型可以是第一类型，即第一类型的终端可以基于上述方式确定随机接入 信息，能够提高通信效率。
在第一方面的一些可选实施例中，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值大于或等于阈值，所述终端类型为第一类型。
在上述实施例中，占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果之间的差值大于或等于阈值，终端为第一类型终端，即终端可以根据接收的第一参考信号的测量结果，判断其自身是否为第一类型终端，从而实现灵活地选择不同方法来确定随机接入信息，提高通信效率。
在第一方面的一些可选实施例中，所述方法还包括：所述终端基于第二映射关系和/或终端类型，确定第一参考信号的标识对应的第二随机接入信息；其中，所述第二映射关系用于指示第一参考信号对应的随机接入信息；所述终端基于所述第二随机接入信息，进行随机接入过程。
在上述实施例中，终端可以确定第一参考信号对应的第二随机接入信息，直接基于第二随机接入信息，提高通信效率。
在第一方面的一些可选实施例中，所述终端类型为第二类型。
在上述实施例中，终端类型可以为第二类型，即，当终端为第二类型的终端时，可以基于上述方式确定随机接入信息，提高通信效率。
在第一方面的一些可选实施例中，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值小于阈值，所述终端类型为第二类型。
在上述实施例中，占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果之间差值小于阈值，终端为第二类型终端。即终端可以根据接收的第一参考信号的测量结果，判断其自身是否为第二类型终端，从而实现灵活地选择不同方法来确定随机接入信息，提高通信效率。
在第一方面的一些可选实施例中，随机接入信息包括随机接入信道时机RO和随机接入前导码中的至少一项；第一类型的终端和第二类型的终端确定的随机接入信息中的至少一项不同。
在上述实施例中，随机接入信息可以包括RO和随机接入前导码中的至少一项，而第一类型终端和第二类型终端所确定的随机接入信息中可以有至少一项是不同的，以提高通信效率。
在第一方面的一些可选实施例中，所述第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：基于协议确定；基于网络设备发送的物理广播信道PBCH确定；基于控制资源集确定；基于下行控制信息DCI确定；基于网络设备发送的系统消息确定。
在上述实施例中，第二参考信号资源的时域位置可以采用上述至少一种方式确定，以灵活地确定时域位置。
在第一方面的一些可选实施例中，所述第二参考信号对应的参考信号资源的时域位置包括以下至少一项：在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；在所述第二参考信号所关联的第一参考信号的最近空余符号上；在所述第二参考信号所关联的第一参考信号之前或之后的第N个符号上，所述N为正整数；在所述第二参考信号所关联的第一参考信号之前或之后的M个时隙内，所述M为正整数。
在上述实施例中，第二参考信号资源的时域位置可以是上述至少一种，以提高通信效率。
在第一方面的一些可选实施例中，所述第一参考信号和所述第二参考信号占用不同的符号；和/或，所述第一参考信号和所述第二参考信号占用不同的频域资源。
在上述实施例中，第一参考信号和所述第二参考信号占用不同的符号；和/或，所述第一参考信号和所述第二参考信号占用不同的频域资源。即，第一参考信号和第二参考信号的时域资源和频域资源中至少一项不同，以提高通信效率。
在第一方面的一些可选实施例中，映射关系基于网络设备的配置确定；和/或，映射关系基于协议确定；所述映射关系包括第一映射关系和第二映射关系中的至少一项。
在上述实施例中，第一映射关系和/或第二映射关系可以由网络设备配置，或者可以由协议规定，以实现确定随机接入信息，提高通信效率。
第二方面，提供一种通信方法，方法包括：网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
在第二方面的一些可选实施例中，所述方法还包括：所述网络设备向所述终端配置参考信号资源，所述参考信号资源对应至少一个第二参考信号；所述至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，所述至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
在第二方面的一些可选实施例中，所述至少一个第二参考信号中的至少两个第二参考信号占用 同样的符号。
在第二方面的一些可选实施例中，所述第一参考信号包括同步信号块SSB；和/或，所述第二参考信号包括信道状态信息参考信号。
在第二方面的一些可选实施例中，所述至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
在第二方面的一些可选实施例中，所述方法还包括：所述网络设备向所述终端配置映射关系，所述映射关系包括第一映射关系和第二映射关系中的至少一项，所述第一映射关系用于指示所述第二参考信号对应的随机接入信息，所述第二映射关系用于指示第一参考信号对应的随机接入信息。
在第二方面的一些可选实施例中，所述第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：基于协议确定；由所述网络设备确定。
在第二方面的一些可选实施例中，所述第二参考信号对应的参考信号资源的时域位置包括以下至少一项：在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；在所述第二参考信号所关联的第一参考信号的最近空余符号上；在所述第二参考信号所关联的第一参考信号之前或之后的第N个符号上，所述N为正整数；在所述第二参考信号所关联的第一参考信号之前或之后的M个时隙内，所述M为正整数。
在第二方面的一些可选实施例中，所述第一参考信号和所述第二参考信号占用不同的符号；和/或，所述第一参考信号和所述第二参考信号占用不同的频域资源。
第三方面，提供一种通信方法，方法包括：网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息；所述终端接收所述网络设备发送的第一参考信号；所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
第四方面，提供一种终端，包括：收发模块，用于接收网络设备发送的第一参考信号；处理模块，用于基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
第五方面，提供一种网络设备，包括：收发模块，用于向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
第六方面，提供一种终端，包括：一个或多个处理器；其中，处理器用于执行第一方面及第一方面中的任一项通信方法。
第七方面，提供一种网络设备，包括：一个或多个处理器；其中，处理器用于执行第二方面及第二方面中的任一项通信方法。
第八方面，提供一种通信系统，包括终端、网络设备，其中，终端被配置为实现第一方面及第一方面中的任一项通信方法，网络设备被配置为实现第二方面及第二方面中的任一项通信方法。
第九方面，提供一种存储介质，存储介质存储有指令，当指令在通信设备上运行时，使得通信设备执行如第一方面及第一方面中的任一项或第二方面及第二方面中的任一项通信方法。
第十方面，本公开实施例提出了程序产品，上述程序产品被通信设备执行时，使得上述通信设备执行如第一方面或第二方面的可选实现方式所描述的方法。
第十一方面，本公开实施例提出了计算机程序，当其在计算机上运行时，使得计算机执行如第一方面或第二方面的可选实现方式所描述的方法。
第十二方面，本公开实施例提供了一种芯片或芯片系统。该芯片或芯片系统包括处理电路，被配置为执行根据上述第一方面或第二方面的可选实现方式所描述的方法。
可以理解地，本公开各实施例所涉及的终端、接入网设备、第一网元、其它网元、核心网设备、通信系统、存储介质、程序产品、计算机程序、芯片或芯片系统均用于执行本公开实施例所提出的方法。因此，其所能达到的有益效果可以参考对应方法中的有益效果，此处不再赘述。
本公开实施例提出了通信方法、终端、网络设备及存储介质。在一些实施例中，通信方法与信息处理方法、通信方法等术语可以相互替换，通信装置与信息处理装置、通信装置等术语可以相互替换，信息处理系统、通信系统等术语可以相互替换。
本公开实施例并非穷举，仅为部分实施例的示意，不作为对本公开保护范围的具体限制。在不矛盾的情况下，某一实施例中的每个步骤均可以作为独立实施例来实施，且各步骤之间可以任意组合，例如，在某一实施例中去除部分步骤后的方案也可以作为独立实施例来实施，且在某一实施例中各步骤的顺序可以任意交换，另外，某一实施例中的可选实现方式可以任意组合；此外，各实施例之间可以任意组合，例如，不同实施例的部分或全部步骤可以任意组合，某一实施例可以与其他实施例的可选实现方式任意组合。
在各本公开实施例中，如果没有特殊说明以及逻辑冲突，各实施例之间的术语和/或描述具有一致性，且可以互相引用，不同实施例中的技术环境根据其内在的逻辑关系可以组合形成新的实施例。
本公开实施例中所使用的术语只是为了描述特定实施例的目的，而并非作为对本公开的限制。
在本公开实施例中，除非另有说明，以单数形式表示的元素，如“一个”、“一种”、“该”、“上述”、“所述”、“前述”、“这一”等，可以表示“一个且只有一个”，也可以表示“一个或多个”、“至少一个”等。例如，在翻译中使用如英语中的“a”、“an”、“the”等冠词(article)的情况下，冠词之后的名词可以理解为单数表达形式，也可以理解为复数表达形式。
在本公开实施例中，“多个”是指两个或两个以上。
在一些实施例中，“至少一者(至少一项、至少一个)(at least one of)”、“一个或多个(one or more)”、“多个(a plurality of)”、“多个(multiple)等术语可以相互替换。
在一些实施例中，“A、B中的至少一者”、“A和/或B”、“在一情况下A，在另一情况下B”、“响应于一情况A，响应于另一情况B”等记载方式，根据情况可以包括以下技术方案：在一些实施例中A(与B无关地执行A)；在一些实施例中B(与A无关地执行B)；在一些实施例中从A和B中选择执行(A和B被选择性执行)；在一些实施例中A和B(A和B都被执行)。当有A、B、C等更多分支时也类似上述。
在一些实施例中，“A或B”等记载方式，根据情况可以包括以下技术方案：在一些实施例中A(与B无关地执行A)；在一些实施例中B(与A无关地执行B)；在一些实施例中从A和B中选择执行(A和B被选择性执行)。当有A、B、C等更多分支时也类似上述。
本公开实施例中的“第一”、“第二”等前缀词，仅仅为了区分不同的描述对象，不对描述对象的位置、顺序、优先级、数量或内容等构成限制，对描述对象的陈述参见权利要求或实施例中上下文的描述，不应因为使用前缀词而构成多余的限制。例如，描述对象为“字段”，则“第一字段”和“第二字段”中“字段”之前的序数词并不限制“字段”之间的位置或顺序，“第一”和“第二”并不限制其修饰的“字段”是否在同一个消息中，也不限制“第一字段”和“第二字段”的先后顺序。再如，描述对象为“等级”，则“第一等级”和“第二等级”中“等级”之前的序数词并不限制“等级”之间的优先级。再如，描述对象的数量并不受序数词的限制，可以是一个或者多个，以“第一装置”为例，其中“装置”的数量可以是一个或者多个。此外，不同前缀词修饰的对象可以相同或不同，例如，描述对象为“装置”，则“第一装置”和“第二装置”可以是相同的装置或者不同的装置，其类型可以相同或不同；再如，描述对象为“信息”，则“第一信息”和“第二信息”可以是相同的信息或者不同的信息，其内容可以相同或不同。
在一些实施例中，“包括A”、“包含A”、“用于指示A”、“携带A”，可以解释为直接携带A，也可以解释为间接指示A。
在一些实施例中，“响应于……”、“响应于确定……”、“在……的情况下”、“在……时”、“当……时”、“若……”、“如果……”等术语可以相互替换。
在一些实施例中，“大于”、“大于或等于”、“不小于”、“多于”、“多于或等于”、“不少于”、“高于”、“高于或等于”、“不低于”、“以上”等术语可以相互替换，“小于”、“小于或等于”、“不大于”、“少于”、“少于或等于”、“不多于”、“低于”、“低于或等于”、“不高于”、“以下”等术语可以相互替换。
在一些实施例中，装置和设备可以解释为实体的、也可以解释为虚拟的，其名称不限定于实施例中所记载的名称，在一些情况下也可以被理解为“设备(equipment)”、“设备(device)”、“电路”、“网元”、“节点”、“功能”、“单元”、“部件(section)”、“系统”、“网络”、“芯片”、“芯片系统”、“实体”、“主体”等。
在一些实施例中，“网络”可以解释为网络中包含的装置，例如，接入网设备、核心网设备等。
在一些实施例中，“接入网设备(access network device，AN device)”也可以被称为“无线接入网设备(radio access network device，RAN device)”、“基站(base station，BS)”、“无线基站(radio base station)”、“固定台(fixed station)”，在一些实施例中也可以被理解为“节点(node)”、“接入点(access point)”、“发送点(transmission point，TP)”、“接收点(reception point，RP)”、“发送和/或接收点(transmission/reception point，TRP)”、“面板(panel)”、“天线面板(antenna panel)”、“天线阵列(antenna array)”、“小区(cell)”、“宏小区(macro cell)”、“小型小区(small cell)”、“毫微微小区(femto cell)”、“微微小区(pico cell)”、“扇区(sector)”、“小区组(cell group)”、“服务小区”、“载波(carrier)”、“分量载波(component carrier)”、“带宽部分(bandwidth part，BWP)”等。
在一些实施例中，“终端(terminal)”或“终端设备(terminal device)”可以被称为“用户设备(user equipment，UE)”、“用户终端(user terminal)”、“移动台(mobile station，MS)”、“移动终端(mobile terminal，MT)”、订户站(subscriber station)、移动单元(mobile unit)、订户单元(subscriber unit)、无线单元(wireless unit)、远程单元(remote unit)、移动设备(mobile device)、无线设备(wireless device)、无线通信设备(wireless communication device)、远程设备(remote device)、移动订户站(mobile subscriber station)、接入终端(access terminal)、移动终端(mobile terminal)、无线终端(wireless terminal)、远程终端(remote terminal)、手持设备(handset)、用户代理(user agent)、移动客户端(mobile client)、客户端(client)等。
在一些实施例中，获取数据、信息等可以遵照所在地国家的法律法规。
在一些实施例中，可以在得到用户同意后获取数据、信息等。
此外，本公开实施例的表格中的每一元素、每一行、或每一列均可以作为独立实施例来实施，任意元素、任意行、任意列的组合也可以作为独立实施例来实施。
在通信场景中，为了提高更高的频谱效率，引入了高频段和大规模天线阵列。大规模天线阵列能够提供更大的波束成型增益，有效补偿高频段带来的传输损耗。
对于天线阵列(其天线口径记为D)，其电磁(electromagnetic，EM)场可以划分为近场和远场。如图1a所示，图1a是本公开示例性实施例示出的近场和远场示意图。近场和远场的边界被称为瑞利(Rayleigh)距离。其中，λ表示波长。近场的范围大小取决于天线口径(D)以及波长(λ)。若终端位于远场，终端接收到的电磁波可能是平面波，针对终端的波束是一个指向终端的二维(2dimension，2D)指向性波束。若终端位于近场，那么终端接收到的电磁波可能是球面波，针对终端的波束是一个环绕终端的三维(3dimension，3D)波束。图1a中的∞表示正无穷。
图1b是本公开示例性实施例示出的远场UE接收电磁波示意图。如图1b所示，对于处于远场的UE来说，其不同的天线端口或阵子到达UE的电磁波是平面波，针对UE的波束是一个指向目标UE的二维(2dimension，2D)指向性波束。对于多径传播中的任意一条路径，到达UE接收天线阵列的时间和相位都是等间隔的
图1c是本公开示例性实施例示出的近场UE接收电磁波示意图。如图1c所示，如果UE位于近场，那么UE接收到的电磁波是球面波，针对UE的波束是一个环绕目标UE的三维(3dimension，3D)波束。对于多径传播中的任意一条路径，到达UE接收天线阵列的时间和相位将不再是等间隔的。
在一些实施例中，对于远场终端，多个端口到达终端的方向是一样的。对于远场终端，多个(例如32个)发送波束方向，只需要在任意一个端口，基于32个波束方向发送32个参考信号资源即可获得各个端口对应的最佳发送波束方向。但是对于近场终端，网络设备(也可以是基站)在第一端口发送的第一波束方向，与网络设备在第二端口发送的第一波束方向，到达终端的距离是不一样的。所以网络设备需要在每个端口都分别发送32个波束方向。如果网络设备还是按照传统的以单端口的方式来发送用于波束测量的参考信号，则终端进行扫描的时间将会增加为端口数的倍数。同时，由于近场到达终端的波束为球面波，使得覆盖同样范围的波束数量进一步增加。故，基站可以在多端口或多波束方向上同时发送的考信号，终端可以同时测量不同端口或不同波束对应的测量结果(例如层1参考信号接收功率(Layer 1 reference signal received power，L1-RSRP)或层1信号与干扰加噪声比(layer 1 signal to interference plus noise ratio，L1-SINR))，并上报每个参考信号资源标识，或进一步上报各个端口/端口组信息以及相应的测量结果，从而减少网络侧的波束扫描时间
由于终端位于远场和近场，对应的网络侧的最佳发送波束存在不同，因此终端如何基于下行信号进行下行同步以及随机接入等问题是急需解决的。
因此，本公开提供一种通信方法，通过接收第一参考信号，并基于第一参考信号确定第一参考信号的标识，标识可以用于确定随机接入信息，以实现灵活确定随机接入信息，适应多变的情况，提高通信效率。
图1d是根据本公开实施例示出的通信系统架构示意图。
如图1d所示，通信系统100包括终端101、网络设备102。
在一些实施例中，终端101例如包括手机(mobile phone)、可穿戴设备、物联网设备、具备通信功能的汽车、智能汽车、平板电脑(Pad)、带无线收发功能的电脑、虚拟现实(virtual reality，VR)终端设备、增强现实(augmented reality，AR)终端设备、工业控制(industrial control)中的无线终端设备、无人驾驶(self-driving)中的无线终端设备、远程手术(remote medical surgery)中的无线终端设备、智能电网(smart grid)中的无线终端设备、运输安全(transportation safety)中的无线终 端设备、智慧城市(smart city)中的无线终端设备、智慧家庭(smart home)中的无线终端设备中的至少一者，但不限于此。
在一些实施例中，网络设备102可以包括接入网设备和核心网设备的至少一者。
在一些实施例中，接入网设备例如是将终端接入到无线网络的节点或设备，接入网设备可以包括5G通信系统中的演进节点B(evolved NodeB，eNB)、下一代演进节点B(next generation eNB，ng-eNB)、下一代节点B(next generation NodeB，gNB)、节点B(node B，NB)、家庭节点B(home node B，HNB)、家庭演进节点B(home evolved nodeB，HeNB)、无线回传设备、无线网络控制器(radio network controller，RNC)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、基带单元(base band unit，BBU)、移动交换中心、6G通信系统中的基站、开放型基站(Open RAN)、云基站(Cloud RAN)、其他通信系统中的基站、Wi-Fi系统中的接入节点中的至少一者，但不限于此。
在一些实施例中，本公开的技术方案可适用于Open RAN架构，此时，本公开实施例所涉及的接入网设备间或者接入网设备内的接口可变为Open RAN的内部接口，这些内部接口之间的流程和信息交互可以通过软件或者程序实现。
在一些实施例中，接入网设备可以由集中单元(central unit，CU)与分布式单元(distributed unit，DU)组成的，其中，CU也可以称为控制单元(control unit)，采用CU-DU的结构可以将接入网设备的协议层拆分开，部分协议层的功能放在CU集中控制，剩下部分或全部协议层的功能分布在DU中，由CU集中控制DU，但不限于此。
在一些实施例中，核心网设备可以是一个设备，包括一个或多个网元，也可以是多个设备或设备群，分别包括上述一个或多个网元中的全部或部分。网元可以是虚拟的，也可以是实体的。核心网例如包括演进分组核心(Evolved Packet Core，EPC)、5G核心网络(5G Core Network，5GCN)、下一代核心(Next Generation Core，NGC)中的至少一者。
可以理解的是，本公开实施例描述的通信系统是为了更加清楚的说明本公开实施例的技术方案，并不构成对于本公开实施例提出的技术方案的限定，本领域普通技术人员可知，随着系统架构的演变和新业务场景的出现，本公开实施例提出的技术方案对于类似的技术问题同样适用。
下述本公开实施例可以应用于图1所示的通信系统100、或部分主体，但不限于此。图1所示的各主体是例示，通信系统可以包括图1中的全部或部分主体，也可以包括图1以外的其他主体，各主体数量和形态为任意，各主体可以是实体的也可以是虚拟的，各主体之间的连接关系是例示，各主体之间可以不连接也可以连接，其连接可以是任意方式，可以是直接连接也可以是间接连接，可以是有线连接也可以是无线连接。
本公开各实施例可以应用于长期演进(Long Term Evolution，LTE)、LTE-Advanced(LTE-A)、LTE-Beyond(LTE-B)、SUPER 3G、IMT-Advanced、第四代移动通信系统(4th generation mobile communication system，4G)、)、第五代移动通信系统(5th generation mobile communication system，5G)、5G新空口(new radio，NR)、未来无线接入(Future Radio Access，FRA)、新无线接入技术(New-Radio Access Technology，RAT)、新无线(New Radio，NR)、新无线接入(New radio access，NX)、未来一代无线接入(Future generation radio access，FX)、Global System for Mobile communications(GSM(注册商标))、CDMA2000、超移动宽带(Ultra Mobile Broadband，UMB)、IEEE 802.11(Wi-Fi(注册商标))、IEEE 802.16(WiMAX(注册商标))、IEEE 802.20、超宽带(Ultra-WideBand，UWB)、蓝牙(Bluetooth(注册商标))、陆上公用移动通信网(Public Land Mobile Network，PLMN)网络、设备到设备(Device-to-Device，D2D)系统、机器到机器(Machine to Machine，M2M)系统、物联网(Internet of Things，IoT)系统、车联网(Vehicle-to-Everything，V2X)、利用其他通信方法的系统、基于它们而扩展的下一代系统等。此外，也可以将多个系统组合(例如，LTE或者LTE-A与5G的组合等)应用。
图2是根据本公开实施例示出的一种通信方法交互示意图。如图2所示，本公开实施例涉及通信方法，用于通信系统100，上述方法包括：
步骤S2101，网络设备102向终端101配置参考信号资源。
在一些实施例中，终端101接收网络设备102配置的参考信号资源。
在一些实施例中，参考信号资源可以是第一参考信号的参考信号资源，即网络设备可以配置第一信号的参考信号资源，终端可以在第一参考信号的参考信号资源上接收第一参考信号。
在一些实施例中，第一参考信号可以是同步信号快(Synchronization Signal and PBCH block，SSB)。
在一些实施例中，对于SSB，不同SSB对应不同的SSB指示符(index)。而SSB index对应有 发送时间，终端基于SSB index即可以获得下行同步。其中，不同SSB对应的发送时间不同。
在一些实施例中，每个SSB可以占用4个连续的符号，按顺序分别为主同步信号(Primary Synchronization Signal，PSS)，PBCH，辅助同步信号(Secondary Synchronization Signal，SSS)+PBCH(中间12个资源块(Resource Block，RB)为SSS，两侧各4个RB为PBCH。即SSB占用20个RB)和PBCH。其中，PBCH中有些子载波为DMRS。同步信号块的子载波间隔可以为15千赫兹(KHz)，30KHz，120KHz和240KHz。所有同步信号块在5毫秒(ms)时间内发送。为了支持波束(beam)发送，有beam时每个beam都需要发送SSB，所以5ms内可发送的同步信号块的数目最大为4(载频3GHz以下时)或8(载频3GHz～6GHz时)或64(载频6GHz以上时)，而这5ms内的多个SSB称为SSB突发集(SSB Burst Set)。SSB burst set的周期可以为5ms，10ms，20ms，40ms等。示例如下：
a)、15KHz时，同步信号块时域分布：每14个符号中占用符号2～5和符号8～11。而15KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始符号为{2,8}+14*n，n为0,1或0,1,2,3。其中{}表示集合，{2,8}表示可以是集合中的任意一个数值，即可以是2或8。
b)、30KHz时，同步信号块时域分布1：每14个符号中占用符号2～5和符号8～11。而30KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始符号为{2,8}+14*n，n为0,1或0,1,2,3。
c)、30KHz时，同步信号块时域分布2：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而30KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为0或者n为0,1。
d)、120KHz时，同步信号块时域分布：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而120KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为n＝0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18。
e)、240KHz时，同步信号块时域分布：每56个符号中占用符号8～11，符号12～15，符号16～19，符号20～23，符号32～35，符号36～39，符号40～43和符号44～47。而240KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{8,12,16,20,32,36,40,44}+56*n，n为n＝0,1,2,3,5,6,7,8。
当然，上述举例只是示例性的，本公开不限定于此。
在一些实施例中，为了节省波束扫描的时间，网络设备可以在同一时间发送多个SSB，即相当于不同的SSB index对应同一个发送时间。因此，第一参考信号可以关联至少一个第二参考信号。
在一些实施例中，参考信号资源也可以是第二参考信号的参考信号资源，即网络设备可以配置第二参考信号的参考信号资源，终端可以在第二参考信号的参考信号资源上接收第二参考信号。
在一些实施例中，第二参考信号可以是信道状态信息参考信号(Channel State Information Reference Signal，CSI-RS)。第二参考信号的信号资源例如为CSI-RS资源(resource)。示例性地，SSB可以关联至少一个CSI-RS，但不限定于此。
在一些实施例中，第一参考信号和/或第二参考信号可以用于确定随机接入信息。
在一些实施例中，参考信号资源也可以是协议约定的，即不需要网络设备配置的。也就是说，步骤S2101是可选的。
步骤S2102，网络设备102向终端101发送第一参考信号。
在一些实施例中，终端101接收网络设备102发送的第一参考信号。例如，终端可以在网络设备配置的参考信号资源上接收第一参考信号。或者，终端也可以在协议规定的参考信号资源上接收第一参考信号。
在一些实施例中，参考信号资源可以是基于网络设备的配置确定的，也可以是基于协议确定的。其中，参考信号资源基于协议确定，可以理解为，协议中规定参考信号资源，或者，协议中预定义了参考信号资源。终端和/或网络设备可以在协议中确定规定的参考信号资源或者预定义的参考信号资源。
在一些实施例中，第一参考信号可以关联至少一个第二参考信号。第二参考信号和第一参考信号可以为准共址(Quasi Co Location，QCL)的关系。即，终端在接收第二参考信号的参考信号资源，和接收第一参考信号时可以不用切换接收波束。
在一些实施例中，第二参考信号和第一参考信号也可以不是QCL的关系。本公开不做限定。
步骤S2103，终端101基于第一参考信号，确定第一参考信号的标识。
在一些实施例中，终端可以基于第一参考信号，确定第一参考信号的标识。例如，第一参考信号 为SSB，SSB中的解调参考信号(Demodulation Reference Signal，DMRS)序列和/或物理广播信道(Physical broadcast channel，PBCH)中的有效载荷(payload)可以携带SSB的标识。终端可以从SSB的DMRS序列和/或PBCH中的payload中获取SSB的标识。
在一些实施例中，第一参考信号的标识可以用于确定第一参考信号对应的随机接入信息。例如，网络设备可以向终端配置第二映射关系，第二映射关系用于指示第一参考信号对应的随机接入信息。例如，第二映射关系为第一参考信号的标识与随机接入信息之间的映射关系。终端可以基于第一参考信号的标识，在第二映射关系中，确定第一参考信号对应的随机接入信息。
在一些实施例中，终端可以基于第一参考信号对应的随机接入信息，进行随机接入。
步骤S2104，网络设备102向终端101发送第二参考信号。
在一些实施例中，终端101接收网络设备102发送的第二参考信号。例如，终端可以在第二参考信号的参考信号资源上接收第二参考信号。其中，第二参考信号的参考信号资源可以采用如下至少一种方式确定：基于协议确定；基于网络设备发送的物理广播信道(Physical Broadcast Channel，PBCH)确定；基于控制资源集确定；基于下行控制信息(downlink control information，DCI)确定；基于网络设备发送的系统消息(system information block，SIB)确定。即，第二参考信号的参考信号资源可以是协议中规定的，终端和网络设备基于协议中规定的参考信号资源接收或发送第二参考信号。或者，第二参考信号的参考信号资源可以是网络设备确定，并由网络设备配置给终端。例如，网络设备可以通过PBCH指示第二参考信号的参考信号资源。又例如，网络设备可以通过控制资源集隐式或显式指示第二参考信号的参考信号资源。比如第二参考信号的参加信号资源与控制资源集所在资源具有第一关系，第一关系比如是占用同样的符号，或占用同样的带宽等。那么通过控制资源集的资源位置即可获得第二参考信号的参考信号资源位置。比如控制资源集承载的DCI可以指示第二参考信号资源的时频资源。其中，控制资源集(CORESET)例如可以是CORESET#0，其关联的搜索空间(search space)可以是search space#0。又例如，网络设备可以通过系统消息指示第二参考信号的参考信号资源。其中系统信息可以由CORESET#0中承载的DCI调度的PDSCH来发送。
在一些实施例中，第二参考信号的参考信号资源的时域位置可以包括以下至少一项：在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；在第二参考信号所关联的第一参考信号的最近空余符号上；在第二参考信号所关联的第一参考信号之前或之后的第N个符号上，N为正整数；在第二参考信号所关联的第一参考信号之前或之后的M个时隙内，M为正整数。
可选地，第二参考信号的参考信号资源可以在第二参考信号所关联的第一参考信号占用的至少一个符号上。例如，第一参考信号占用了4个符号，第二参考信号占用第一参考信号的4个符号中的至少一个符号。可以理解，上述具体的举例只是示例性的，本公开不限定于此。
可选地，第二参考信号的参考信号资源可以在第二参考信号所关联的第一参考信号的最近空余符号上。例如，可以在第一参考信号之前的符号上，也可以在第一参考信号之后的符号上。即第二参考信号的参考信号资源和第一参考信号之间可以没有其他符号。
可选地，第二参考信号的参考信号资源可以在第二参考信号所关联的第一参考信号之前或之后的第N个符号上，N为正整数。例如，第二参考信号的参考信号资源在第一参考信号之前的第二个符号上或在第一参考信号之后的第二个符号上。比如，第一参考信号占用符号2～5，若第二参考信号在第一个参考信号之前的第二个符号，即第二参考信号在符号0上；若第二参考信号在第一个参考信号之后的第二个符号，即第二参考信号在符号7上。其中，第二参考信号和第一参考信号可以在同一个时隙，或不同的时隙中。可以理解，上述具体的举例只是示例性的，本公开不限定于此。
可选地，第二参考信号的参考信号资源可以在第二参考信号所关联的第一参考信号之前或之前的第N个时隙(slot)内。例如，可以在之前或之后的第2个时隙内。又例如，可以在之前或之后的第4个时隙内。但上述2个时隙、4个时隙只是示例性的举例，本公开不限定于此。
在一些实施例中，第二参考信号的参考信号资源和第一参考信号可以尽可能地在同一个时隙。
在一些实施例中，第一参考信号和第二参考信号占用不同的符号；和/或，第一参考信号和第二参考信号占用不同的频域资源，即占用同样的符号中的不同的频域资源。其中，符号可以理解为时域资源，时域资源例如可以包括但不限于无线子帧、时隙、微时隙、符号等。频域资源例如可以包括但不限于子载波，资源块(resource block，RB)，物理资源块(physical resource block，PRB)，带宽(bandwidth)等。
例如，对于不同子载波间隔时，假设为15千赫兹(KHz)，或30KHz时域分布1时，此时，第一参考信号(例如SSB index#0)的位置为符号2～5，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号0,1,6,7中的至少一个，当然12,13也有可能；而 第一参考信号(例如SSB index#1)的位置为符号8～11，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号6,7，12,13中的至少一个，当然0,1也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的物理下行链路共享通道(Physical Downlink Shared Channel，PDSCH)为频分复用(Frequency Division Multiplexing，FDM)。其中，该PDSCH用于发送系统信息SIB。
又例如，对于子载波间隔为30KHz时域分布2，或120KHz时：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而30KHz时，同步信号块的数目最大为4或8.即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为0或者n为0,1。其中，{}表示集合，{4,8,16,20}表示集合中的元素为4,8,16,20。其中，*表示乘号。此时，第一参考信号(例如SSB index#0)的位置为符号4～7，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号0,1,2,3中的至少一个，当然12,13也有可能；而第一参考信号(例如SSB index#1)的位置为符号8～11，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号12,13，14,15(即后面一个slot的符号0,1)中的至少一个，当然本slot的0,1,2,3也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的PDSCH为FDM。
又例如，对于子载波间隔为240KHz时，同步信号块时域分布：每56个符号中占用符号8～11，符号12～15，符号16～19，符号20～23，符号32～35，符号36～39，符号40～43和符号44～47。而240KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{8,12,16,20,32,36,40,44}+56*n，n为n＝0,1,2,3,5,6,7,8。此时，4个slot 56个符号，第一参考信号(例如SSB index#0)的位置为符号8～11，而第一参考信号(例如SSB index#1)的位置为符号12～15，第一参考信号(例如SSB index#2)的位置为符号16～19，第一参考信号(例如SSB index#3)的位置为符号20～23，第一参考信号(例如SSB index#4)的位置为符号32～35，而第一参考信号(例如SSB index#5)的位置为符号36～39，第一参考信号(例如SSB index#6)的位置为符号40～43，第一参考信号(例如SSB index#7)的位置为符号44～47.那么SSB index#0和#1的CSI-RS resource的位置可以为符号0,1,2,3，4,5,6,7中的至少一个，当然24,25,26,27，28,29,30,31也有可能；而SSB index#2和#3的CSI-RS resource的位置可以为符号当然24,25,26,27，28,29,30,31中的至少一个，当然0,1,2,3，4,5,6,7也有可能；而SSB index#4和#5的CSI-RS resource的位置可以为符号24,25,26,27，28,29,30,31中的至少一个，当然48,49,50,51也有可能。而SSB index#6和#7的CSI-RS resource的位置可以为符号，48,49,50,51当中的至少一个，当然24,25,26,27，28,29,30,31也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的PDSCH为FDM。
在一些实施例中，SSB index表示SSB标识或索引。
可以理解的是，上述举例只是示例性的，本公开不限定于此，例如，在本公开的其他实施例中，SSB的位置可以重新设计。
在一些实施例中，第一参考信号可以关联至少一个第二参考信号。至少一个参考信号中不同参考信号可以对应不同的参考信号资源。参考信号资源可以对应波束，即，至少一个参考信号中的不同参考信号可以对应不同波束或相同波束。或者，至少一个参考信号中不同参考信号对应同一参考信号资源的不同端口信息。端口信息可以对应波束，即，至少一个参考信号中不同参考信号可以对应不同波束或相同波束。
在一些实施例中，端口信息可以包括端口、端口组、天线子阵列单元中的至少一项。即，不同参考信号对应参考信号资源的不同端口信息，可以是不同参考信号对应参考信号资源的不同端口，或不同参考信号对应参考信号资源的不同端口组，或不同参考信号对应参考信号资源的不同天线子阵列单元。
在一些实施例中，至少一个第二参考信号中的至少两个第二参考信号占用同样的符号。其中，符号可以理解为时域位置。时域位置包括但不限于无线子帧、时隙、微时隙、符号等。至少两个第二参考信号占用同样的符号，即至少两个第二参考信号在时域位置上存在重叠。
步骤S2105，终端101基于第二参考信号，确定第二参考信号的标识。
在一些实施例中，终端可以基于第二参考信号，确定第二参考信号的标识。
在一些实施例中，第二参考信号的标识可以用于确定第二参考信号对应的随机接入信息。例如，网络设备可以向终端配置第一映射关系，第一映射关系用于指示第二参考信号对应的随机接入信息。 例如，第一映射关系为第二参考信号的标识与随机接入信息之间的映射关系。终端可以基于第二参考信号的标识，在第一映射关系中，确定第二参考信号对应的随机接入信息。
在一些实施例中，终端可以基于第二参考信号对应的随机接入信息，进行随机接入。
步骤S2106，终端101确定随机接入信息。
在一些实施例中，终端可以确定第二参考信号对应的第一随机接入信息。例如，终端可以基于第二参考信号的标识，在第二映射关系中，确定第二参考信号对应的第一随机接入信息。其中，第一映射关系用于指示第二参考信号对应的随机接入信息，例如，第一映射关系为第二参考信号的标识和第一随机接入资源之间的映射关系。例如，终端可以基于第一映射关系和/或终端类型，确定第二参考信号对应的第一随机接入信息。其中，终端类型例如可以包括第一类型和第二类型。例如，第一类型可以是近场终端，第二类型可以是远场终端，但不限定于此。例如，当终端类型为第一类型时，可以在第一映射关系中，确定第二参考信号对应的第一随机接入信息。可以理解的是，为了覆盖近场终端，网络设备可以在同一时间发送多个参考信号，多个参考信号中可以包括至少一个第二参考信号，终端可以确定第二参考信号对应的第一随机接入信息。则对于同一时间发送的不同参考信号，确定的随机接入信息不同，确定的随机资源信息更具有针对性。当然，在其他实例中，终端类型为其他类型，也可以基于第一映射关系，确定第二参考信号的第一随机接入信息，本公开不做限定。终端可以基于确定的第一随机接入信息进行随机接入。且，至少一个第二参考信号关联一个第一参考信号，第一参考信号例如为SSB，SSB可以用于下行同步。
在一些实施例中，终端可以确定第二参考信号对应的第一随机接入信息。例如，终端可以基于第一参考信号的标识，从第二映射关系中，确定第一参考信号对应的第二随机接入信息。其中，第二映射关系用于指示第一参考信号对应的随机接入信息。例如，第二映射关系为第一参考信号的标识和第二随机接入资源之间的映射关系。例如，终端可以基于第二映射关系和/或终端类型，确定第一参考信号对应的第二随机接入信息。其中，终端类型例如可以包括第一类型和第二类型。例如，第一类型可以是近场终端，第二类型可以是远场终端，但不限定于此。例如，当终端类型为第二类型时，终端可以在第二映射关系中，确定第一参考信号对应的第二随机接入信息。可以理解的是，为了覆盖远场终端，网络设备可以在同一时间发送一个参考信号，例如第一参考信号可以不关联第二参考信号，或者只关联一个第二参考信号，则可以直接在第二映射关系中，确定第一参考信号对应的第二随机接入信息。或者，网络设备可以在同一时间发送多个参考信号，例如第一参考信号关联多个第二参考信号，但不同第二参考信号之间差别较小，因此，同一时间发送的多个参考信号可以共用随机接入信息。即，可以直接确定第一参考信号对应的第二随机接入信息。
在一些实施例中，终端可以确定第一参考信号对应的第二随机接入信息。再从第二随机接入信息中，确定第二参考信号对应的第一随机接入信息。即，第一随机接入信息是第二随机接入信息的子集，第二随机接入资源用于确定第一随机接入资源。例如，当终端类型为第一类型时，可以确定第一参考信号对应的第二随机接入信息。再从第二随机接入信息中，确定第二参考信号对应的第一随机接入信息，但不限定于此。
在一些实施例中，终端可以确定其自身的类型，若终端的类型为第一类型，则可以确定第二参考信号对应的第一随机接入信息。或者确定第一参考信号对应的第二随机接入信息。再从第二随机接入信息中，确定第二参考信号对应的第一随机接入信息。若终端的类型为第二类型，则可以确定第一参考信号对应的第二随机接入信息。本实施例只是示例性的，本公开不做限定。
占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果之间差值大于或等于阈值，终端为第一类型终端。即，终端可以根据占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果，判断终端是否为第一类型终端。其中，测量结果包括参考信号接收功率(Layer 1 reference signal received power，RSRP)，信号与干扰加噪声比(layer 1 signal to interference plus noise ratio，SINR)，且RSRP可以是层1(L1)或层3(L3)的RSRP，SINR可以是L1或L3的SINR。
在一些实施例中，占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果之间差值小于阈值，终端为第二类型终端。即，终端可以根据占用同样的符号且占用不同频域资源的至少两个第一参考信号对应的测量结果，判断终端是否为第二类型终端。其中，测量结果包括RSRP，SINR，且RSRP可以是L1或L3的RSRP，SINR可以是L1或L3的SINR。
在一些实施例中，若终端类型为第二类型，可以直接基于SSB确定该SSB对应的所有的随机接入资源。即包含不同第二参考信号对应的近场终端的随机接入资源。或者，可以将该SSB对应的所有的随机接入资源分成两份，一份给第二类型的终端用，另一份给多个第二参考信号对应的终端平均 分。
在一些实施例中，随机接入信息包括以下至少一项：随机接入信道时机(Random Access Channel Occasion，RO)；随机接入前导码。
在一些实施例中，第一类型的终端和第二类型的终端确定的随机接入信息中的至少一项不同。比如同一时间发送的多个第二参考信号，有的是为了覆盖远场终端，有的是为了覆盖近场终端，而第一类型终端和第二类型终端都确定了RO和preamble，从而确定了不同的随机接入信息。或第一参考信号是为了覆盖第二类型终端，第二参考信号是为了覆盖第一类型终端，第二类型终端基于第一参考信号和终端类型确定第一参考信号对应的一部分随机接入资源进行随机接入，而第一参考信号对应的另一部分随机接入资源用于第一类型终端基于第二参考信号确定对应的随机接入资源。
在一些实施例中，终端可以基于确定的随机接入信息进行随机接入。例如，可以在确定的RO上发送确定的随机接入前导码。当然，也可以在其他RO上发送确定的随机接入前导码，或者在确定的RO上发送其他随机接入前导码，本公开不做限定。
步骤S2107，终端101向网络设备102发送测量报告。
在一些实施例中，网络设备102接收终端101发送的测量报告。
在一些实施例中，测量报告也可以称为波束报告，但不限定于此。
在一些实施例中，测量报告包括以下至少一项：第一参考信号/第二参考信号对应的参考信号资源标识，第一参考信号/第二参考信号的测量结果，第一参考信号/第二参考信号对应的端口标识，第一参考信号/第二参考信号对应的端口组标识。
在一些实施例中，测量结果可以包括L1-RSRP和/或L1-SINR。
在一些实施例中，测量报告包括以下至少一项：组合形式的测量报告(group based beam report)；非组合形式的测量报告(non-group based beam report)。
在一些实施例中，组合形式的测量报告中包括至少一组上报内容，一组上报内容中包括至少两组标识；其中，每组标识包括以下至少一项：参考信号资源的标识；参考信号资源对应的端口标识；参考信号资源对应的端口组标识。
在一些实施例中，至少两组标识中，不同组标识包括的参考信号资源的标识不同；或至少两组标识中，不同组标识包括的参考信号资源的标识相同，但参考信号资源对应的端口标识或参考信号资源对应的端口组标识不同。可以理解，不同参考信号资源对应的相同端口的波束方向可以是一样的，而同样端口在同一时间指向不同的波束方向。
本公开实施例所涉及的通信方法可以包括步骤S2101～步骤S2107中的至少一者。例如，步骤S2102和步骤S2103可以作为独立实施例来实施，但不限于此。
在一些实施例中，步骤S2101、步骤S2104至步骤S2107在不同实施例中可以对这些步骤中的一个或多个步骤进行省略或替代。
在一些实施例中，可参见图2所对应的说明书之前或之后记载的其他可选实现方式。
图3a是根据本公开实施例示出的通信方法流程图。如图3a所示，本公开实施例涉及通信方法，由终端101执行，上述方法包括：
步骤S3101，获取参考信号资源。
步骤S3101的可选实现方式可以参见图2的步骤S2101的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101接收由网络设备102配置的参考信号资源，但不限于此，也可以接收由其他主体发送的第一信息。
在一些实施例中，终端101获取由协议规定的参考信号资源。
在一些实施例中，终端101从高层(upper layer(s))获取参考信号资源。
在一些实施例中，终端101进行处理从而得到参考信号资源。
在一些实施例中，步骤S3101被省略，终端101自主实现参考信号资源所指示的功能，或上述功能为缺省或默认。
步骤S3102，获取第一参考信号。
步骤S3102的可选实现方式可以参见图2的步骤S2102的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101接收由网络设备102配置的第一参考信号，但不限于此，也可以接收由其他主体发送的第一信息。
在一些实施例中，终端101获取由协议规定的第一参考信号。
在一些实施例中，终端101从高层(upper layer(s))获取第一参考信号。
在一些实施例中，终端101进行处理从而得到第一参考信号。
在一些实施例中，步骤S3102被省略，终端101自主实现第一参考信号所指示的功能，或上述功能为缺省或默认。
步骤S3103，基于第一参考信号，确定第一参考信号的标识。
步骤S3103的可选实现方式可以参见图2的步骤S2103的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第一参考信号的标识是基于第一参考信号确定的。
步骤S3104，获取第二参考信号。
步骤S3104的可选实现方式可以参见图2的步骤S2104的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101接收由网络设备102配置的第二参考信号，但不限于此，也可以接收由其他主体发送的第一信息。
在一些实施例中，终端101获取由协议规定的第二参考信号。
在一些实施例中，终端101从高层(upper layer(s))获取第二参考信号。
在一些实施例中，终端101进行处理从而得到第二参考信号。
在一些实施例中，步骤S3104被省略，终端101自主实现第二参考信号所指示的功能，或上述功能为缺省或默认。
步骤S3105，基于第二参考信号，确定第二参考信号的标识。
步骤S3105的可选实现方式可以参见图2的步骤S2105的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，第二参考信号的标识是基于第二参考信号确定的。
步骤S3106，确定随机接入信息。
步骤S3106的可选实现方式可以参见图2的步骤S2106的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
步骤S3107，发送测量报告。
步骤S3107的可选实现方式可以参见图2的步骤S2107的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101可以向网络设备102发送测量报告，但不限定于，也可以向其他实体发送测量报告。
图3b是根据本公开实施例示出的通信方法流程图。如图3b所示，本公开实施例涉及通信方法，由终端101执行，上述方法包括：
步骤S3201，获取第一参考信号。
步骤S3201的可选实现方式可以参见图2的步骤S2102的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，终端101接收由网络设备102配置的第一参考信号，但不限于此，也可以接收由其他主体发送的第一信息。
在一些实施例中，终端101获取由协议规定的第一参考信号。
在一些实施例中，终端101从高层(upper layer(s))获取第一参考信号。
在一些实施例中，终端101进行处理从而得到第一参考信号。
在一些实施例中，步骤S3201被省略，终端101自主实现第一参考信号所指示的功能，或上述功能为缺省或默认。
步骤S3202，基于第一参考信号，确定第一参考信号的标识。
步骤S3202的可选实现方式可以参见图2的步骤S2103的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
图4a是根据本公开实施例示出的通信方法流程图。如图4a所示，本公开实施例涉及通信方法，由网络设备102执行，上述方法包括：
步骤S4101，发送参考信号资源。
步骤S4101的可选实现方式可以参见图2的步骤S2101的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，网络设备102向终端101发送参考信号资源，但不限于此，也可以向其他主 体发送参考信号资源。
步骤S4102，发送第一参考信号。
步骤S4102的可选实现方式可以参见图2的步骤S2102的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，网络设备102向终端101发送第一参考信号，但不限于此，也可以向其他主体发送第一参考信号。
步骤S4103，发送第二参考信号。
步骤S4103的可选实现方式可以参见图2的步骤S2104的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，网络设备102向终端101发送第二参考信号，但不限于此，也可以向其他主体发送第二参考信号。
步骤S4104，获取测量报告。
步骤S4104的可选实现方式可以参见图2的步骤S2107的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，网络设备102接收终端101发送的测量报告，但不限定于此，还可以接收其他实体发送的测量报告。
图4b是根据本公开实施例示出的通信方法流程图。如图4b所示，本公开实施例涉及通信方法，由网络设备102执行，上述方法包括：
步骤S4201，发送第一参考信号。
步骤S4201的可选实现方式可以参见图2的步骤S2102的可选实现方式，及图2所涉及的实施例中其他关联部分，此处不再赘述。
在一些实施例中，网络设备102向终端101发送第一参考信号，但不限于此，也可以向其他主体发送第一参考信号。
图5是根据本公开实施例示出的通信方法示意图。如图5所示，本公开实施例涉及通信方法，上述方法包括：
步骤S5101，网络设备102向终端101发送第一参考信号。
步骤S5101的可选实现方式可以参见图2的S2102，及图2所涉及的实施例中其他关联部分，此处不再赘述。
步骤S5102，终端101接收网络设备102发送的第一参考信号。
步骤S5102的可选实现方式可以参见图2的S2102，及图2所涉及的实施例中其他关联部分，此处不再赘述。
步骤S5103，终端101基于第一参考信号，确定第一参考信号的标识。
步骤S5103的可选实现方式可以参见图2的S2103，及图2所涉及的实施例中其他关联部分，此处不再赘述。
本公开提供一种通信方法，如下：
在一些实施例中，终端确定至少一个参考信号资源，并针对至少一个参考信号资源上的至少一个参考信号进行测量，获得至少一个参考信号中各个参考信号对应的测量结果(L1-RSRP/L1-SINR)。
在一些实施例中，至少一个参考信号对应的参考信号资源在至少一个符号上重叠，即时域重叠。
在一些实施例中，终端采用如下方式确定至少一个参考信号资源位置：
a)基于基站配置。例如，基站配置SSB或CSI-RS资源位置。
b)基于协议约定。例如，协议约定SSB或CSI-RS资源位置。
在一些实施例中，参考信号资源为CSI-RS资源，则参考信号为CSI-RS，至少一个参考信号中不同参考信号对应不同的CSI-RS资源，或至少一个参考信号中不同参考信号对应同一CSI-RS资源的不同端口/端口组或基站不同的子阵列单元(后续以端口来描述)。
在一些实施例中，参考信号资源为SSB资源，则参考信号为SSB，至少一个参考信号中不同参考信号对应不同的SSB资源，或至少一个参考信号中不同参考信号对应同一SSB资源的不同端口。
在一些实施例中，协议约定SSB资源位置。不同SSB对应不同的SSB资源位置，即不同SSB之间可以采用FDM的方式，不同的SSB对应不同频域的SSB资源。由于传统情况下，每个SSB对应不同的SSB index，而SSB index对应的不同的发送时间，终端基于SSB index即可以获得下行同步。比如传统情况下，每个同步信号块SSB占用4个连续的符号，按顺序分别为PSS，PBCH，SSS+PBCH(中间12个RB为SSS，两侧各4个RB为PBCH。即SSB占用20个RB)和PBCH，其中PBCH 中有些子载波为DMRS。同步信号块的子载波间隔可以为15KHz，30KHz，120KHz和240KHz。所有同步信号块在5ms时间内发送。为了支持beam发送，有beam时每个beam都需要发送SSB，所以5ms内可发送的同步信号块的数目最大为4(载频3GHz以下时)或8(载频3GHz～6GHz时)或64(载频6GHz以上时)，而这5ms内的多个SSB称为SSB burst set。SSB burst set的周期可以为5ms，10ms，20ms，40ms等。示例性地：
a)、15KHz时，同步信号块时域分布：每14个符号中占用符号2～5和符号8～11。而15KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始符号为{2,8}+14*n，n为0,1或0,1,2,3。其中{}表示集合，{2,8}表示可以是集合中的任意一个数值，即可以是2或8。
b)、30KHz时，同步信号块时域分布1：每14个符号中占用符号2～5和符号8～11。而30KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始符号为{2,8}+14*n，n为0,1或0,1,2,3。
c)、30KHz时，同步信号块时域分布2：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而30KHz时，同步信号块的数目最大为4或8。即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为0或者n为0,1。
d)、120KHz时，同步信号块时域分布：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而120KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为n＝0,1,2,3,5,6,7,8,10,11,12,13,15,16,17,18。
e)、240KHz时，同步信号块时域分布：每56个符号中占用符号8～11，符号12～15，符号16～19，符号20～23，符号32～35，符号36～39，符号40～43和符号44～47。而240KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{8,12,16,20,32,36,40,44}+56*n，n为n＝0,1,2,3,5,6,7,8。
在一些实施例中，基于此传统情况下，SSB的固定位置，终端接收SSB，从SSB中的DMRS序列或DMRS序列和PBCH中的payload获得SSB index之后，即可以获得SSB对应的时间是5ms内的哪个时隙(slot)中的哪个符号，即实现下行同步。
在一些实施例中，一个SSB配置至少一个关联的CSI-RS resource。
在一些实施例中，至少一个关联的CSI-RS resource可以分为两种情况：
情况1：一个CSI-RS resource，配置为一个或多个端口，不同端口对应不同的波束。
情况2：多个CSI-RS resource，每个CSI-RS resource配置为一个或两个端口(与传统的用于波束测量的CSI-RS的端口数一样)。每个CSI-RS resource对应不同的波束。
在一些实施例中，基于以上关联的CSI-RS resource，终端在接收SSB和与该SSB关联的CSI-RS resource上的参考信号时可以不用切换接收波束，即终端可以假设该CSI-RS与SSB为QCL关系
在一些实施例中，终端行为包括以下至少一项
a)行为一：终端测量SSB对应的RSRP(L1-RSRP或L3-RSRP)。
b)行为二：终端基于第一映射关系确定SSB对应的RO和/或随机接入前导码。例如，基站配置(基于系统信息)，或协议规定SSB与RO/随机接入前导码的第一映射关系。
c)行为三：终端测量CSI-RS对应的RSRP(L1-RSRP或L3-RSRP)。
d)行为四：终端基于第二映射关系确定CSI-RS对应的RO和/或随机接入前导码。其中，只需要确定多个CSI-RS资源或一个CSI-RS资源的多个端口与该SSB对应的RO和/或随机接入前导码之间的第二映射关系。也就是说行为二里已经确定出了该SSB对应的第一RO/或第一随机接入前导码子集，而行为四是确定不同CSI-RS对应第一RO/或第一随机接入前导码子集中的哪一部分。基站配置(基于系统信息)，或协议规定其第二映射关系。
e)行为五：终端在确定好的RO上发送确定好的随机接入前导码。
在一些实施例中，对于近场UE，终端的行为包括以上5个行为，即近场UE需要采用CSI-RS对应的RO和随机接入前导码；对于远场UE，可以不包括以上行为四，即远场UE直接采用SSB对应的RO和随机接入前导码。
在一些实施例中，终端采用如下方式确定自己是近场UE还是远场UE：若不同CSI-RS资源或不同CSI-RS端口对应的L1-RSRP的差值大于门限值，则是近场UE；否则是远场UE。
在一些实施例中，与SSB关联的CSI-RS资源的时域位置，可以协议规定，或PBCH指示(即MIB信息master information block)或CORESET#0指示，或CORESET#0调度的PDSCH携带的系统信息指示(即SIB，systeminformation block)。其可选位置如下：
a)在该SSB最近的空余符号上，可以在该SSB之前或之后。可以与该SSB符号相邻，即中间 没有其它符号；也可以有间隔，即中间有其它符号。尽量与SSB在一个slot内，或两个相邻的slot内，或相邻的4个slot内。
b)可以是与SSB为时分复用(Time Division Multiplexing，TDM)和/或FDM。
在一些实施例中，比如对于不同子载波间隔时，假设为15千赫兹(KHz)，或30KHz时域分布1时，此时，第一参考信号(例如SSB index#0)的位置为符号2～5，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号0,1,6,7中的至少一个，当然12,13也有可能；而第一参考信号(例如SSB index#1)的位置为符号8～11，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号6,7，12,13中的至少一个，当然0,1也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的物理下行链路共享通道(Physical Downlink Shared Channel，PDSCH)为频分复用(Frequency Division Multiplexing，FDM)。其中，该PDSCH用于发送系统信息SIB。
又例如，对于子载波间隔为30KHz时域分布2，或120KHz时：每28个符号中占用符号4～7，符号8～11，符号16～19和符号20～23。而30KHz时，同步信号块的数目最大为4或8.即每个同步信号块的起始位置为{4,8,16,20}+28*n，n为0或者n为0,1。其中，{}表示集合，{4,8,16,20}表示集合中的元素为4,8,16,20。其中，*表示乘号。此时，第一参考信号(例如SSB index#0)的位置为符号4～7，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号0,1,2,3中的至少一个，当然12,13也有可能；而第一参考信号(例如SSB index#1)的位置为符号8～11，则第一参考信号关联的第二参考信号的参考信号资源(例如CSI-RS resource)的位置可以为符号12,13，14,15(即后面一个slot的符号0,1)中的至少一个，当然本slot的0,1,2,3也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的PDSCH为FDM。
又例如，对于子载波间隔为240KHz时，同步信号块时域分布：每56个符号中占用符号8～11，符号12～15，符号16～19，符号20～23，符号32～35，符号36～39，符号40～43和符号44～47。而240KHz时，同步信号块的数目最大为64。即每个同步信号块的起始位置为{8,12,16,20,32,36,40,44}+56*n，n为n＝0,1,2,3,5,6,7,8。此时，4个slot 56个符号，第一参考信号(例如SSB index#0)的位置为符号8～11，而第一参考信号(例如SSB index#1)的位置为符号12～15，第一参考信号(例如SSB index#2)的位置为符号16～19，第一参考信号(例如SSB index#3)的位置为符号20～23，第一参考信号(例如SSB index#4)的位置为符号32～35，而第一参考信号(例如SSB index#5)的位置为符号36～39，第一参考信号(例如SSB index#6)的位置为符号40～43，第一参考信号(例如SSB index#7)的位置为符号44～47.那么SSB index#0和#1的CSI-RS resource的位置可以为符号0,1,2,3，4,5,6,7中的至少一个，当然24,25,26,27，28,29,30,31也有可能；而SSB index#2和#3的CSI-RS resource的位置可以为符号当然24,25,26,27，28,29,30,31中的至少一个，当然0,1,2,3，4,5,6,7也有可能；而SSB index#4和#5的CSI-RS resource的位置可以为符号24,25,26,27，28,29,30,31中的至少一个，当然48,49,50,51也有可能。而SSB index#6和#7的CSI-RS resource的位置可以为符号，48,49,50,51当中的至少一个，当然24,25,26,27，28,29,30,31也有可能。第二参考信号的参考信号资源与第一参考信号尽量在一个slot内。第二参考信号的参考信号资源可以与CORESET#0或与CORESET#0承载的DCI调度的PDSCH为FDM。
在一些实施例中，终端发送测量报告，测量报告包括参考信号资源标识，L1-RSRP/L1-SINR，端口标识，端口组标识中的至少一项。
在一些实施例中，测量报告包括group based beam report，或non-group based beam report。其中group based beam report中至少包含一个组合(group)，每个group至少包含2个不同的标识(Identity，ID)组合。
在一些实施例中，ID组合包括参考信号资源ID，和端口/端口组ID，任意一个不同，则ID组合不同。
在一些实施例中，Group内包含的ID组合对应的参考信号资源ID可以相同
在一些实施例中，Group内包含的ID组合对应的端口/端口组ID不能相同。因为不同参考信号资源对应的同样的端口的波束方向是一样的，而同样端口在同一时间不能指向不同的波束方向。
图6a是本公开实施例提出的终端的结构示意图。如图6a所示，终端6100可以包括：收发模块6101和处理模块6102。其中，收发模块6101，用于接收网络设备发送的第一参考信号；处理模块6102，用于基于第一参考信号，确定第一参考信号的标识，标识用于确定随机接入信息。
在一些实施例中，处理模块6102还用于：终端确定至少一个第二参考信号对应的参考信号资源；至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
在一些实施例中，至少一个第二参考信号中的至少两个第二参考信号占用同样的符号。
在一些实施例中，其特征在于，参考信号资源基于网络设备的配置确定；和/或，参考信号资源基于协议确定。
在一些实施例中，第一参考信号包括同步信号块SSB；和/或，第二参考信号包括信道状态信息参考信号CSI-RS。
在一些实施例中，至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
在一些实施例中，处理模块6102还用于：终端基于第一映射关系和/或终端类型，确定第二参考信号对应的第一随机接入信息；其中，第一映射关系用于指示第二参考信号对应的随机接入信息；终端基于第一随机接入信息，进行随机接入过程。
在一些实施例中，处理模块6102还用于：终端基于第二映射关系，确定第一参考信号对应的第二随机接入信息；其中，第二映射关系用于指示第一参考信号对应的随机接入信息；第二随机接入信息用于确定第一随机接入信息，第一随机接入信息是第二随机接入信息的子集。
在一些实施例中，终端类型为第一类型。
在一些实施例中，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值大于或等于阈值，终端类型为第一类型。
在一些实施例中，处理模块6102还用于：终端基于第二映射关系和/或终端类型，确定第一参考信号的标识对应的第二随机接入信息；其中，第二映射关系用于指示第一参考信号对应的随机接入信息；终端基于第二随机接入信息，进行随机接入过程。
在一些实施例中，终端类型为第二类型。
在一些实施例中，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值小于阈值，终端类型为第二类型。
在一些实施例中，随机接入信息包括随机接入信道时机RO和随机接入前导码中的至少一项；第一类型的终端和第二类型的终端确定的随机接入信息中的至少一项不同。
在一些实施例中，第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：基于协议确定；基于网络设备发送的物理广播信道PBCH确定；基于控制资源集确定；基于下行控制信息DCI确定；基于网络设备发送的系统消息确定。
在一些实施例中，第二参考信号对应的参考信号资源的时域位置包括以下至少一项：在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；在第二参考信号所关联的第一参考信号的最近空余符号上；在第二参考信号所关联的第一参考信号之前或之后的第N个符号上，N为正整数；在第二参考信号所关联的第一参考信号之前或之后的第M个时隙内，M为正整数。
在一些实施例中，第一参考信号和第二参考信号占用不同的符号；和/或，第一参考信号和第二参考信号占用不同的频域资源。
在一些实施例中，映射关系基于网络设备的配置确定；和/或，映射关系基于协议确定；映射关系包括第一映射关系和第二映射关系中的至少一项。
图6b是本公开实施例提出的网络设备的结构示意图。如图6b所示，网络设备6200可以包括：收发模块6201，用于向终端发送第一参考信号，第一参考信号用于确定第一参考信号的标识，标识用于确定随机接入信息。
在一些实施例中，收发模块6201还用于：向终端配置参考信号资源，参考信号资源对应至少一个第二参考信号；至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
在一些实施例中，至少一个第二参考信号中的至少两个第二参考信号占用同样的符号。
在一些实施例中，第一参考信号包括同步信号块SSB；和/或，第二参考信号包括信道状态信息参考信号。
在一些实施例中，至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
在一些实施例中，收发模块6201还用于：向终端配置映射关系，映射关系包括第一映射关系和第二映射关系中的至少一项，第一映射关系用于指示第二参考信号对应的随机接入信息，第二映射关系用于指示第一参考信号对应的随机接入信息。
在一些实施例中，第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：基 于协议确定；由网络设备确定。
在一些实施例中，第二参考信号对应的参考信号资源的时域位置包括以下至少一项：在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；在第二参考信号所关联的第一参考信号的最近空余符号上；在第二参考信号所关联的第一参考信号之前或之后的第N个符号上，N为正整数；在第二参考信号所关联的第一参考信号之前或之后的第M个时隙内，M为正整数。
在一些实施例中，第一参考信号和第二参考信号占用不同的符号；和/或，第一参考信号和第二参考信号占用不同的频域资源。
在一些实施例中，网络设备6200还可以包括处理模块6202，用于处理本公开各实施例涉及的步骤。
图7a是本公开实施例提出的一种通信设备7100的结构示意图。通信设备7100可以是网络设备，也可以是终端，也可以是支持网络设备实现以上任一方法的芯片、芯片系统、或处理器等，还可以是支持终端实现以上任一方法的芯片、芯片系统、或处理器等。可选地，网络设备可以是接入网设备、核心网设备等。可选地，终端可以是用户设备等。通信设备7100可用于实现上述方法实施例中描述的方法，具体可以参见上述方法实施例中的说明。
如图7a所示，通信设备7100包括一个或多个处理器7101。处理器7101可以是通用处理器或者专用处理器等，例如可以是基带处理器或中央处理器。基带处理器可以用于对通信协议以及通信数据进行处理，中央处理器可以用于对通信装置进行控制，执行程序，处理程序的数据。通信设备7100用于执行以上任一方法。可选地，通信装置可以是基站、基带芯片，终端设备、终端设备芯片，DU或CU等。
在一些实施例中，通信设备7100还包括用于存储指令的一个或多个存储器7102。可选地，全部或部分存储器7102也可以处于通信设备7100之外。
在一些实施例中，通信设备7100还包括一个或多个收发器7103。在通信设备7100包括一个或多个收发器7103时，收发器7103执行上述方法中的发送和/或接收等通信步骤S2101，处理器7101执行其他步骤。
在一些实施例中，收发器可以包括接收器和/或发送器，接收器和发送器可以是分离的，也可以集成在一起。可选地，收发器、收发单元、收发机、收发电路等术语可以相互替换，发送器、发送单元、发送机、发送电路等术语可以相互替换，接收器、接收单元、接收机、接收电路等术语可以相互替换。
在一些实施例中，通信设备7100可以包括一个或多个接口电路7104。可选地，接口电路7104与存储器7102连接，接口电路7104可用于从存储器7102或其他装置接收信号，可用于向存储器7102或其他装置发送信号。例如，接口电路7104可读取存储器7102中存储的指令，并将该指令发送给处理器7101。
以上实施例描述中的通信设备7100可以是网络设备或者终端，但本公开中描述的通信设备7100的范围并不限于此，通信设备7100的结构可以不受图7a的限制。通信设备可以是独立的设备或者可以是较大设备的一部分。例如所述通信设备可以是：1)独立的集成电路IC，或芯片，或，芯片系统或子系统；(2)具有一个或多个IC的集合，可选地，上述IC集合也可以包括用于存储数据，程序的存储部件；(3)ASIC，例如调制解调器(Modem)；(4)可嵌入在其他设备内的模块；(5)接收机、终端设备、智能终端设备、蜂窝电话、无线设备、手持机、移动单元、车载设备、网络设备、云设备、人工智能设备等等；(6)其他等等。
图7b是本公开实施例提出的芯片7200结构示意图。对于通信设备7100可以是芯片或芯片系统的情况，可以参见图7b所示的芯片7200的结构示意图，但不限于此。
芯片7200包括一个或多个处理器7201，芯片7200用于执行以上任一方法。
在一些实施例中，芯片7200还包括一个或多个接口电路7202。可选地，接口电路7202与存储器7203连接，接口电路7202可以用于从存储器7203或其他装置接收信号，接口电路7202可用于向存储器7203或其他装置发送信号。例如，接口电路7202可读取存储器7203中存储的指令，并将该指令发送给处理器7201。
在一些实施例中，接口电路7202执行上述方法中的发送和/或接收等通信步骤S2101，处理器7201执行其他步骤。
在一些实施例中，接口电路、接口、收发管脚、收发器等术语可以相互替换。
在一些实施例中，芯片7200还包括用于存储指令的一个或多个存储器7203。可选地，全部或部分存储器7203可以处于芯片7200之外。
本公开还提出存储介质，上述存储介质上存储有指令，当上述指令在通信设备7100上运行时，使得通信设备7100执行以上任一方法。可选地，上述存储介质是电子存储介质。可选地，上述存储介质是计算机可读存储介质，但不限于此，其也可以是其他装置可读的存储介质。可选地，上述存储介质可以是非暂时性(non-transitory)存储介质，但不限于此，其也可以是暂时性存储介质。
本公开还提出程序产品，上述程序产品被通信设备7100执行时，使得通信设备7100执行以上任一方法。可选地，上述程序产品是计算机程序产品。
本公开还提出计算机程序，当其在计算机上运行时，使得计算机执行以上任一方法。

Claims (35)

  1. 一种通信方法，其特征在于，所述方法包括：
    终端接收网络设备发送的第一参考信号；
    所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
  2. 根据权利要求1所述的方法，其特征在于，所述方法还包括：
    所述终端确定至少一个第二参考信号对应的参考信号资源；
    所述至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，
    所述至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
  3. 根据权利要求2所述的方法，其特征在于，至少两个所述第二参考信号占用同样的符号。
  4. 根据权利要求1-2中任意一项所述的方法，其特征在于，所述参考信号资源基于网络设备的配置确定；和/或，
    所述参考信号资源基于协议确定。
  5. 根据权利要求2所述的方法，其特征在于，所述第一参考信号包括同步信号块SSB；和/或，
    所述第二参考信号包括信道状态信息参考信号。
  6. 根据权利要求2所述的方法，其特征在于，所述至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
  7. 根据权利要求2或3所述的方法，其特征在于，所述方法还包括：
    所述终端基于第一映射关系和/或终端类型，确定所述第二参考信号对应的第一随机接入信息；
    其中，所述第一映射关系用于指示所述第二参考信号对应的随机接入信息；
    所述终端基于所述第一随机接入信息，进行随机接入过程。
  8. 权利要求7所述的方法，其特征在于，所述方法还包括：
    所述终端基于第二映射关系，确定第一参考信号对应的第二随机接入信息；
    其中，所述第二映射关系用于指示第一参考信号对应的随机接入信息；
    所述第二随机接入信息用于确定第一随机接入信息，所述第一随机接入信息是所述第二随机接入信息的子集。
  9. 根据权利要求7所述的方法，其特征在于，所述终端类型为第一类型。
  10. 根据权利要求9所述的方法，其特征在于，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值大于或等于阈值，所述终端类型为第一类型。
  11. 根据权利要求2所述的方法，其特征在于，所述方法还包括：
    所述终端基于第二映射关系和/或终端类型，确定第一参考信号对应的第二随机接入信息；
    其中，所述第二映射关系用于指示第一参考信号对应的随机接入信息；
    所述终端基于所述第二随机接入信息，进行随机接入过程。
  12. 根据权利要求7或11所述的方法，其特征在于，所述终端类型为第二类型。
  13. 根据权利要求11所述的方法，其特征在于，占用同样的符号且占用不同频域资源的至少两个第二参考信号对应的测量结果之间差值小于阈值，所述终端类型为第二类型。
  14. 根据权利要求1所述的方法，其特征在于，随机接入信息包括随机接入信道时机RO和随机接入前导码中的至少一项；
    第一类型的终端和第二类型的终端确定的随机接入信息中的至少一项不同。
  15. 根据权利要求2所述的方法，其特征在于，所述第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：
    基于协议确定；
    基于网络设备发送的物理广播信道PBCH确定；
    基于控制资源集确定；
    基于下行控制信息DCI确定；
    基于网络设备发送的系统消息确定。
  16. 根据权利要求2所述的方法，其特征在于，所述第二参考信号对应的参考信号资源的时域位置包括以下至少一项：
    在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；
    在所述第二参考信号所关联的第一参考信号的最近空余符号上；在所述第二参考信号所关联的第一参考信号之前或之后的第N个符号上，所述N为正整数；
    在所述第二参考信号所关联的第一参考信号之前或之后的M个时隙内，所述M为正整数。
  17. 根据权利要求2所述的方法，其特征在于，所述第一参考信号和所述第二参考信号占用不同的符号；和/或，
    所述第一参考信号和所述第二参考信号占用不同的频域资源。
  18. 根据权利要求7-13中任意一项所述的方法，其特征在于，映射关系基于网络设备的配置确定；和/或，映射关系基于协议确定；
    所述映射关系包括第一映射关系和第二映射关系中的至少一项。
  19. 一种通信方法，其特征在于，所述方法包括：
    网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
  20. 根据权利要求19所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端配置参考信号资源，所述参考信号资源对应至少一个第二参考信号；
    所述至少一个第二参考信号中不同的参考信号对应不同的参考信号资源；或，
    所述至少一个第二参考信号中不同的参考信号对应同一参考信号资源的不同端口信息。
  21. 根据权利要求20所述的方法，其特征在于，所述至少一个第二参考信号中的至少两个第二参考信号占用同样的符号。
  22. 根据权利要求20所述的方法，其特征在于，所述第一参考信号包括同步信号块SSB；和/或，
    所述第二参考信号包括信道状态信息参考信号。
  23. 根据权利要求20所述的方法，其特征在于，所述至少一个第二参考信号包括与第一参考信号关联的一个或多个第二参考信号。
  24. 根据权利要求20所述的方法，其特征在于，所述方法还包括：
    所述网络设备向所述终端配置映射关系，所述映射关系包括第一映射关系和第二映射关系中的至少一项，所述第一映射关系用于指示所述第二参考信号对应的随机接入信息，所述第二映射关系用于指示第一参考信号对应的随机接入信息。
  25. 根据权利要求20所述的方法，其特征在于，所述第二参考信号对应的参考信号资源的时域位置采用如下至少一种方式确定：
    基于协议确定；
    由所述网络设备确定。
  26. 根据权利要求20所述的方法，其特征在于，所述第二参考信号对应的参考信号资源的时域位置包括以下至少一项：
    在所述第二参考信号所关联的第一参考信号占用的至少一个符号上；
    在所述第二参考信号所关联的第一参考信号的最近空余符号上；
    在所述第二参考信号所关联的第一参考信号之前或之后的第N个符号上，所述N为正整数；
    在所述第二参考信号所关联的第一参考信号之前或之后的M个时隙内，所述M为正整数。
  27. 根据权利要求20所述的方法，其特征在于，所述第一参考信号和所述第二参考信号占用不同的符号；和/或，
    所述第一参考信号和所述第二参考信号占用不同的频域资源。
  28. 一种通信方法，其特征在于，所述方法包括：
    网络设备向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息；
    所述终端接收所述网络设备发送的第一参考信号；
    所述终端基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
  29. 一种终端，其特征在于，包括：
    收发模块，用于接收网络设备发送的第一参考信号；
    处理模块，用于基于所述第一参考信号，确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
  30. 一种网络设备，其特征在于，包括：
    收发模块，用于向终端发送第一参考信号，所述第一参考信号用于确定所述第一参考信号的标识，所述标识用于确定随机接入信息。
  31. 一种终端，其特征在于，包括：
    一个或多个处理器；
    其中，所述处理器用于执行权利要求1-18中任一项所述的通信方法。
  32. 一种网络设备，其特征在于，包括：
    一个或多个处理器；
    其中，所述处理器用于执行权利要求19-28中任一项所述的通信方法。
  33. 一种通信系统，其特征在于，包括：
    终端和网络设备，其中，所述终端被配置为实现权利要求1-18中任一项所述的通信方法，所述网络设备被配置为实现权利要求19-28中任一项所述的通信方法。
  34. 一种存储介质，其特征在于，包括：
    所述存储介质存储有指令，当所述指令在通信设备上运行时，使得所述通信设备执行如权利要求1-18或19-28中任一项所述的通信方法。
  35. 一种程序产品，其特征在于，包括：
    计算机程序，所述计算机程序被通信设备执行时，使得所述通信设备执行如权利要求1-18或19-28中任一项所述的通信方法。
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CN110381584A (zh) * 2018-04-13 2019-10-25 维沃移动通信有限公司 随机接入资源的配置方法、获取方法、网络侧设备及终端
CN116133146A (zh) * 2021-11-12 2023-05-16 华为技术有限公司 一种通信方法及通信装置
CN116234052A (zh) * 2021-12-06 2023-06-06 华为技术有限公司 确定随机接入信号时机ro的方法和装置
CN116828625A (zh) * 2022-03-21 2023-09-29 华为技术有限公司 通信方法及装置
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CN116133146A (zh) * 2021-11-12 2023-05-16 华为技术有限公司 一种通信方法及通信装置
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