WO2019137450A1 - 通信方法和装置 - Google Patents

通信方法和装置 Download PDF

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Publication number
WO2019137450A1
WO2019137450A1 PCT/CN2019/071263 CN2019071263W WO2019137450A1 WO 2019137450 A1 WO2019137450 A1 WO 2019137450A1 CN 2019071263 W CN2019071263 W CN 2019071263W WO 2019137450 A1 WO2019137450 A1 WO 2019137450A1
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WO
WIPO (PCT)
Prior art keywords
random access
resource
configuration information
competitive
access resource
Prior art date
Application number
PCT/CN2019/071263
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English (en)
French (fr)
Inventor
酉春华
严乐
张宏平
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP19738407.6A priority Critical patent/EP3611987B1/en
Publication of WO2019137450A1 publication Critical patent/WO2019137450A1/zh
Priority to US16/528,202 priority patent/US20190356376A1/en

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/06—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the transmitting station
    • H04B7/0686—Hybrid systems, i.e. switching and simultaneous transmission
    • H04B7/0695—Hybrid systems, i.e. switching and simultaneous transmission using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
    • H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
    • H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
    • H04B7/0868—Hybrid systems, i.e. switching and combining
    • H04B7/088—Hybrid systems, i.e. switching and combining using beam selection
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0026—Transmission of channel quality indication
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H04L5/0051—Allocation of pilot signals, i.e. of signals known to the receiver of dedicated pilots, i.e. pilots destined for a single user or terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W56/00—Synchronisation arrangements
    • H04W56/001—Synchronization between nodes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/046—Wireless resource allocation based on the type of the allocated resource the resource being in the space domain, e.g. beams
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/02—Hybrid access
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/19—Connection re-establishment
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W16/00—Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/24—Cell structures
    • H04W16/28—Cell structures using beam steering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/04—Scheduled access
    • 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
    • H04W74/0841—Random access procedures, e.g. with 4-step access with collision treatment

Definitions

  • the embodiments of the present application relate to the field of communications, and in particular, to a communication method and apparatus.
  • Random access is a very critical step in a mobile communication system and a necessary step in establishing a communication link between a terminal and a base station.
  • the terminal interacts with the base station through random access to complete subsequent operations, such as calling, resource request, and data transmission.
  • the performance of random access directly affects the user experience.
  • a dedicated preamble is configured for random access, and the dedicated preamble is released after the random access is successfully completed.
  • a communication method may be implemented by a terminal or a component of a terminal, and may include: receiving configuration information, where the configuration information includes information indicating a non-competitive random access resource, where The non-competitive random access resource includes a first resource, where the first resource is a non-competitive random access resource for a beam failure recovery request, and a random access request is sent according to the configuration information; Upon completion, information indicating the first resource is retained. Optionally, the information indicating the first resource is included in the first configuration information.
  • the foregoing method may enable the terminal to continue to perform beam failure recovery according to the indicated first resource when the subsequent beam failure occurs, without performing notification by using dedicated signaling, such as RRC reconfiguration, so that the beam failure may be reduced.
  • the recovery delay also reduces signaling overhead.
  • the foregoing configuration information may also be used to indicate a non-competitive random access resource used for cell change, and the resource may be referred to as a second resource.
  • the information indicating the second resource is included in the second configuration information.
  • the configuration information further includes a beam identifier corresponding to a part of resources or all resources in the non-competitive random access resource, where the beam identifier is a synchronization signal block identifier or channel state information.
  • the reference signal identifier; or, in a possible manner, the configuration information further includes an association between the identifier of the random access resource and the beam identifier, where the random access resource includes the competitive random access resource and the non-competitive Random access resources, the beam identifier is a synchronization signal block identifier or a channel state information reference signal identifier.
  • the configuration information may also be used to indicate a competitive random access resource.
  • the information indicating the first resource is discarded, so that the random access resource can be released in time to improve resource utilization.
  • a random access is initiated, including sending a random access request, and then determining random access when receiving a response corresponding to the random access request or receiving a conflict resolution message Completed successfully.
  • the configuration information may also be used to characterize the use of the first configuration information and/or the second configuration information, so that the configuration information that can be received by the terminal can be used, so that the terminal can know the configuration.
  • the purpose of random access resources so that random access resources can be processed correctly.
  • the indicated non-competitive random access resources include time-frequency domain resources and/or code domain resources.
  • a communication device comprising a module, component or circuit for implementing the communication method of the first aspect.
  • a communication system comprising the above communication device.
  • an embodiment of the present application provides a computer storage medium having stored thereon a program, and when executed, causes a computer to perform the method described in the above aspect.
  • a fifth aspect provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the methods described in the various aspects above.
  • FIG. 1 is a schematic diagram of a possible communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a terminal according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a communication apparatus according to an embodiment of the present application.
  • the techniques described herein may be used in various wireless communication networks, such as fifth generation 5G networks, subsequent evolved networks, or a convergence of multiple networks.
  • FIG. 1 shows a schematic diagram of one possible communication system in accordance with an embodiment of the present invention.
  • the communication system includes one or more network devices (radio access networks) 20 and one or more terminals 10.
  • the radio access network can be connected to a core network (CN).
  • the network device 20 may be any device having a wireless transceiving function.
  • the network device 20 includes but is not limited to: a base station (for example, a base station BS, a base station NodeB, an evolved base station eNodeB or eNB, a base station gNodeB or gNB in a 5G communication system, a base station in a future communication system, and an access node in a WiFi system) , wireless relay node, wireless backhaul node, etc.
  • a base station for example, a base station BS, a base station NodeB, an evolved base station eNodeB or eNB, a base station gNodeB or gNB in a 5G communication system,
  • the base station may be: a macro base station, a micro base station, a pico base station, a small station, a relay station, and the like.
  • a plurality of base stations can support the networks of the same technology mentioned above, and can also support the networks of the different technologies mentioned above.
  • the base station may include one or more co-site or non-co-located transmission receiving points (TRPs).
  • the network device 20 may also be a wireless controller, a centralized unit (CU), or a distributed unit (DU) in a cloud radio access network (CRAN) scenario.
  • the network device 20 can also be a server, a wearable device, or an in-vehicle device or the like.
  • the network device 20 will be described as an example of a base station.
  • the plurality of network devices 20 may be the same type of base station or different types of base stations.
  • the base station can communicate with the terminal 10 or with the terminal 10 via the relay station.
  • the terminal 10 can support communication with multiple base stations of different technologies.
  • the terminal can support communication with a base station supporting the LTE network, can also support communication with a base station supporting the 5G network, and can also support the base station with the LTE network and the 5G network. Dual connectivity of the base station.
  • the terminal 10 is a device with wireless transceiving function that can be deployed on land, including indoors or outdoors, handheld, wearable or on-board; it can also be deployed on the water surface (such as a ship, etc.); it can also be deployed in the air (such as airplanes, balloons). And satellites, etc.).
  • the terminal device may be a mobile phone, a tablet, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, and industrial control ( Wireless terminal in industrial control, wireless terminal in self driving, wireless terminal in remote medical, wireless terminal in smart grid, transportation safety A wireless terminal, a wireless terminal in a smart city, a wireless terminal in a smart home, and the like.
  • a terminal may also be called a terminal device, a user equipment (UE), an access terminal device, a UE unit, a UE station, a mobile station, a mobile station, a remote station, a remote terminal device, a mobile device, a UE terminal device, and a terminal.
  • Equipment, wireless communication equipment, UE proxy or UE device, etc. The terminal can also be fixed or mobile.
  • the terms “network” and “system” may be used interchangeably, and “device” and “device” may also be used interchangeably, but those skilled in the art can understand the meaning thereof.
  • the “communication device” may be a network device (eg, a base station, a DU, or a CU) in the above-described FIG. 1 and FIG. 2, or a terminal, or may be a component of the network device or a component of the terminal (eg, an integrated circuit, a chip). Etc.), or other communication modules.
  • the English of the beam can be written as a beam.
  • the beam may include a transmit beam and a receive beam.
  • the transmit beam may refer to a distribution of signal strength formed in different directions of the space after the signal is transmitted through the antenna
  • the receive beam may refer to a signal intensity distribution of the wireless signal received from the antenna in different directions in space.
  • one or more antenna ports of one beam can also be regarded as one antenna port set, that is, one antenna port set includes at least one antenna port.
  • the beam may refer to a precoding vector having a certain energy transmission directivity and can identify the precoding vector by using identifier information, where the energy transmission directivity refers to receiving the precoding vector in a certain spatial position.
  • the signal after the pre-coding process has a good receiving power, such as satisfying the reception demodulation signal-to-noise ratio, etc., and in other spatial locations, the power of the signal after receiving the pre-encoding process through the pre-coding vector is low, Meet the reception demodulation signal to noise ratio.
  • Different communication devices may have different precoding vectors, ie corresponding to different beams.
  • one communication device may use one or more of a plurality of different precoding vectors at the same time, ie simultaneously
  • One beam or multiple beams can be formed.
  • the beam can be understood as a spatial resource.
  • the beam may be identified by the identifier information.
  • the identifier information may be corresponding to the corresponding resource identifier (identity, ID) of the user.
  • the identifier information may correspond to the configured channel state information reference signal (Channel status).
  • CSI-RS information reference signal
  • SRS uplink sounding reference signal
  • the identifier information may also be identifier information that is displayed or implicitly carried by a beam-bearing signal or channel.
  • the identifier information includes, but is not limited to, a synchronization signal sent by a beam or a broadcast channel indicating the The identification information of the beam includes, but is not limited to, a synchronization signal block (SS block) sent by the beam, and identifies the identification information (for example, SS block index) indicating the beam, where the SS block (SSB) includes at least the primary synchronization.
  • PSS Primary synchronization signal
  • SSS secondary synchronization signal
  • PBCH Broadcast Channel
  • the serving cell is a cell that can be used to provide radio resources for the connected terminal; if no carrier aggregation CA or dual connectivity DC is configured, the connected terminal has only one serving cell; if the connected terminal is configured with carrier aggregation (CA) And/or dual connectivity (DC), the serving cell is at least one cell, including the primary cell and all secondary cells SCell.
  • the primary cell (PCell) is a primary frequency, and the UE may perform an initial connection establishment procedure or initiate a connection re-establishment process, or a cell indicated as a primary cell in the handover process.
  • a secondary cell (SCell) which is a cell operating at a secondary frequency, provides additional radio resources for connected terminals.
  • the activated serving cell is a serving cell available for data transmission.
  • the primary secondary cell (PSCell) is a cell that can initiate random access when the secondary cell of the secondary base station changes.
  • the PUCCH SCell is an SCell configured with a PUCCH.
  • the configuration of the random access resource or the scenario of initiating the random access may be different from the LTE.
  • the communication method and apparatus provided by the embodiments of the present application may be applied to the foregoing 5G. Or other evolutionary systems or other similar systems.
  • the embodiment of the present application provides a communication method. As shown in FIG. 2, the method may include:
  • the terminal receives configuration information from the network device.
  • the terminal may receive configuration information indicating a random access resource from the network device, where the configuration information may include at least information indicating the non-competitive random access resource.
  • the timing at which the network side sends the configuration information is not limited.
  • Random access may include contention free random access or contention based random access.
  • the non-competitive random access may include, for example, the following process: the terminal sends a random access request (for example, a preamble), and the base station sends an access response (such as a random access response (RAR) or an uplink grant (uplink grant) to the terminal. Or a downlink assignment, where the RAR includes at least one of the following: an uplink grant, an uplink timing advance indication, and a temporary cell radio network temporary identifier (temporay C-RNTI).
  • RAR random access response
  • uplink grant uplink grant
  • temporary cell radio network temporary identifier temporary cell radio network temporary identifier
  • the competitive random access may include, for example, the following process: the terminal sends a random access request (for example, a preamble), the base station sends a random access response (for example, RAR), and the terminal sends a message 3 (Msg3) (including a connection connection establishment request or Endpoint identification (C-RNTI), collision resolution (the base station sends a contention resolution message to the terminal, including C-RNTI scrambled uplink grant or downlink assignment, or partial or all data of message 3).
  • the terminal may initiate (trigger) random access in a scenario such as a cell change, a beam failure recovery, or a terminal to obtain an uplink timing advance (TA), where the random access may be a competitive random access. It can also be non-competitive random access.
  • TA uplink timing advance
  • the terminal initiates the competitive random access or the non-competitive random access, and may be implemented according to whether the network device configures the non-competitive random access resource that satisfies the condition or is configured according to the network device. This example does not limit this.
  • the cell change scenario may refer to a handover (such as a change of a primary cell (PCell)) or a secondary cell group (SCG) under dual connectivity (DC).
  • the configuration information indicating the random access resource may be carried by the reconfiguration message, and the reconfiguration message may be, for example, a Radio Resource Control (RRC) message.
  • RRC Radio Resource Control
  • configuration information indicating a random access resource for cell change may be referred to as first configuration information.
  • the network device that sends the first configuration information may be the source base station.
  • the foregoing RRC message may be, for example, an RRC reconfiguration message carrying mobility control information or an RRC message for synchronization reconfiguration, which is not limited in this embodiment of the present application.
  • the foregoing beam failure recovery scenario may be: when the quality of all service beams (or service SSBs or service CSI-RSs) of a certain serving cell of the terminal does not satisfy the condition, indicating that the occurrence occurs.
  • the beam fails.
  • beam failure recovery is required. That is, the terminal re-determines the beam (or called SSB) whose quality meets the condition from the candidate beam (or called candidate SSB or candidate CSI-RS). Or CSI-RS), then sending a beam failure recovery request to the network device, by which the network device is informed of the beam selected by the terminal, so that the base station uses the selected beam as a service beam for subsequent communication between the network device and the terminal.
  • the configuration information indicating the random access resource may be carried by the reconfiguration message, and the reconfiguration message may be, for example, an RRC message.
  • the reconfiguration message may be, for example, an RRC message.
  • configuration information indicating a random access resource for a beam failure recovery request may be referred to as second configuration information.
  • the network device that sends the second configuration information may be a serving base station.
  • the terminal receives the downlink control information (for example, uplink grant or downlink assignment) transmitted on the physical downlink control channel (PDCCH) according to the receiving parameter of the service beam.
  • the downlink control information for example, uplink grant or downlink assignment
  • the terminal has only one serving cell, if the PDCCH quality of all the serving beams (or the serving SSB or the serving CSI-RS) of the serving cell is continuously lower than the preset threshold, it is determined that the beam failure occurs;
  • the terminal has at least two serving cells.
  • all the serving beams of a serving cell or the serving SSB or the serving CSI-RS
  • determining that the serving cell has failed to generate a beam fails. .
  • the embodiment of the present application does not limit how to determine the beam failure.
  • the foregoing configuration information may include first configuration information and/or second configuration information, that is, the first configuration information and the second configuration information may be carried in the same message. It is to be understood that the first configuration information and the second configuration information may also be sent in different messages and/or at different occasions, which is not limited by the embodiment of the present application.
  • the foregoing terminal needs to obtain an uplink TA scenario, which may include: the network device needs to send downlink data but discovers that the terminal has uplink out-of-synchronization, or needs to activate a scenario such as a secondary cell.
  • the configuration information indicating the random access resource may be carried by, for example, a PDCCH order. It can be understood that when the terminal receives the PDCCH order, random access is initiated, that is, the PDCCH order is used.
  • the network device that sends the PDCCH order may be the serving base station.
  • the non-competitive random access resource refers to a resource used for the terminal to perform non-competitive random access
  • the competitive random access resource refers to a resource used for the terminal to perform competitive random access.
  • the non-competitive random access resource may be a terminal-dedicated resource
  • the competitive random access resource may be a common resource and a resource shared by multiple terminal devices in the cell. Both the competitive random access resource and the non-competitive random access resource are configured by the network side, and the network device sends relevant indication information to the terminal.
  • the information indicating the non-competitive random access resource and the information indicating the competitive random access resource may be carried in the same message or may be carried in different messages. limited. In one possible manner, information indicating a competitive random access resource may be carried in a System Information Block (SIB).
  • SIB System Information Block
  • one possible mode may be the first configuration information or the second configuration information or the PDCCH order. Includes information indicating competitive random access resources.
  • Non-competitive random access resources and competitive random access resources may be collectively referred to as random access resources. When referring to random access resources in this application, it may refer to non-competitive random access resources, and may also refer to competition. Sexual random access resources.
  • the random access resource may include at least one of the following: a time-frequency domain resource and a code domain resource. Alternatively, the code domain resource may be a preamble.
  • the non-competitive random access resource indicated by the second configuration information may be referred to as a first resource, and the non-competitive random access resource indicated by the first configuration information may be referred to as a second resource, and the PDCCH order indication is used.
  • the non-competitive random access resource is called a third resource.
  • the information about the random access resource configured by the network device is transmitted to the terminal through the configuration information.
  • the random access resource may be indicated by the following forms:
  • the ssb is identified by the SSB-ID, the ra-PreambleIndex is the preamble index, and the ra-Resources is the time-frequency resource indication of the random access.
  • the indication may not be indicated by an index, but indicated by the corresponding sequence itself, that is, the configuration information may include an index of the preamble, or may be a sequence. .
  • the first configuration information or the second configuration information or the PDCCH order is collectively referred to as configuration information.
  • the use of the random access resource indicated in the first configuration information and the second configuration information is different, and the use of the random access resource may be expressed in an explicit or implicit manner in the configuration information, so that the terminal can be informed.
  • the purpose of the configured random access resource For example, if the first configuration information and the second configuration information are carried in the same message, the first configuration information may be identified or specified or indicated to characterize the use of the first configuration information, such as explicitly characterizing the first configuration. If the information is configured as a random access resource for cell change, the second configuration information may be implicitly learned to be a random access resource configured for the beam failure recovery request, or the explicit representation of the second configuration information is configured.
  • the first configuration information may be configured for the random access resource for the cell change, or the use of the first configuration information and the second configuration information may be explicitly performed.
  • the characterization of the application of the first configuration information and the second configuration information is not limited as long as the terminal can know the purpose of the configured random access resource. It can be understood that the information indicating the random access resource may be transmitted by using a specific message or signaling, and the use of the configured random access resource may be obtained without the identifier, for example, the configuration information sent by the PDCCH order. After detecting, it is determined that the received PDCCH order is that the random access resource indicated by the configuration information is a random access resource used for acquiring an uplink TA destination. It can be understood that, by characterizing the use of the configuration information, the terminal can learn the purpose of the configured random access resource, so that the random access resource can be processed correctly.
  • the beam identifier corresponding to the random access resource may also be indicated, where the beam identifier may include a synchronization signal block identifier (SSB index) or a channel state information reference signal identifier CSI-RS ID. Whether the specific beam is identified by the SSB index or the CSI-RS ID can be configured by a predefined or network device.
  • the beam identifier may be associated with a time-frequency domain resource, where the association with the time-frequency domain resource may be: associated with a time domain resource in the time-frequency domain resource, or with the time-frequency domain resource The frequency domain resource association or association with the time-frequency domain resource.
  • the beam identification can be associated with a code domain resource. In one possible manner, the beam identification can be associated with both the code domain resource and the time-frequency domain resource.
  • a possible way of indicating the beam identifier corresponding to the random access resource may be: including, in the configuration information, a beam identifier corresponding to a part of the resources or all resources in the random access resource, for example, taking a preamble as an example, Three preambles are configured for random access, respectively, the first preamble, the second preamble, the third preamble, the first preamble, the second preamble, and the third preamble may correspond to SSB index1, SSB index 2, and SSB index 3, respectively. , then the association relationship as shown in Table 1 can be notified in the configuration information:
  • a further possible manner of indicating a beam identifier corresponding to the random access resource may include: associating the identifier of the random access resource with the beam identifier in the configuration information, for example, taking the random access resource as a preamble as an example. Assume that three preambles are configured for random access, and their indexes (or identifiers) are preamble1, preamble 2, preamble 3, preamble 1, preamble 2, and preamble 3, respectively, and SSB index 1, SSB index 2, and SSB index 3. Correspondingly, the association relationship as shown in Table 2 can be notified in the configuration information:
  • Random access resource identifier Beam identification Preamble 1 SSB index 1 Preamble 2 SSB index 2 Preamble 3 SSB index 3
  • the indication manner is similar to that in the first embodiment, and may be an association between the identifier of the time domain resource and the beam identifier in the time-frequency domain resource, or may be The relationship between the identifier of the frequency domain resource and the beam identifier in the time-frequency domain resource, and the association between the identifier of the time-frequency domain resource and the beam identifier.
  • the terminal performs random access according to the configuration information.
  • the terminal can determine, on the basis of the configuration information, random access according to the content in the configuration information when it is determined that the random access needs to be initiated.
  • the terminal may determine to initiate competitive random access or non-competitive random access.
  • the cell change triggered by handover may be that the terminal receives the RRC reconfiguration message carrying the mobility control information (mobilitycontrolinfo) or is used for synchronous reconfiguration. After the RRC message, it is determined to initiate random access. In this case, the terminal performs random access according to the configuration information and the base station to which the changed cell belongs, thereby completing the cell change.
  • mobility controlinfo mobility control information
  • the terminal and the target base station perform random access, and the configuration information carries three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, and each The preamble index is associated with an SSB index: assuming the preamble1 is associated with the SSB index1, the preamble 2 is associated with the SSB index2, and the preamble3 is associated with the SSB index 3.
  • the terminal can determine an SSB (eg, the SSB identified by the SSB index 2) according to the signal quality or other parameters, by sending the SSB with the SSB.
  • the sequence of the preamble 2 identifier associated with the index 2 is used for random access.
  • the sequence of the preamble 2 identifier may be in the SSB index. 2 The associated time domain resource or the frequency domain resource or the time-frequency domain resource is sent. If the beam identifier associated with the time domain resource or the frequency domain resource or the time-frequency domain resource is not indicated in the configuration information, the sequence of the preamble 2 identifier may be Sent on the time-frequency domain resource included in the configuration information.
  • the terminal and the target base station perform random access, and the configuration information carries three preamble indexes for non-competitive random access: preamble1, preamble 2, and preamble 3.
  • Each preamble index is associated with one CSI-RS ID (preamble1 associated CSI-RS ID1, preamble 2 associated CSI-RS ID2, preamble 3 associated CSI-RS ID3), and the terminal may determine a CSI-RS according to signal quality or other parameters (eg, CSI-RS ID1 identifies the CSI-RS) and performs random access by transmitting the sequence identified by the preamble 1 associated with the CSI-RS ID1.
  • the sequence identified by the preamble 1 is specifically transmitted on the time-frequency resource. Similar to the previous article, it will not be repeated here. Or, it is assumed that an inter-base station handover occurs, and the terminal and the target base station perform random access, and the configuration information carries three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, each The preamble index is associated with an SSB ID or a CSI-RS ID (eg, preamble 1 associated CSI-RS ID1, preamble 2 associated SSB index 1, preamble 3 associated CSI-RS ID2), and the terminal may determine a reference signal according to signal quality or other parameters.
  • CSI-RS ID eg, preamble 1 associated CSI-RS ID1, preamble 2 associated SSB index 1, preamble 3 associated CSI-RS ID2
  • the random access is performed by sending the sequence of the preamble 3 identifier associated with the CSI-RS ID2
  • the sequence of the preamble 3 identifier is specific.
  • the transmission on the frequency resource is similar to the previous one, and will not be described here.
  • the rules for determining the reference signal or the synchronization signal block for the terminal are not limited in this embodiment, and may be, for example, selecting a reference signal or a synchronization signal block with the best signal quality. It is to be understood that, in the above description, the random access resource indicated in the configuration information is used as an example.
  • the terminal may further obtain the time-frequency domain resource for random access according to the indicated frequency domain resource, and indicate the frequency domain resource and its corresponding beam.
  • the terminal may further obtain the time-frequency domain resource for random access according to the indicated time domain resource.
  • the target base station is a base station to which the target cell belongs. The foregoing terminal and the base station (the target base station or the base station to which the target cell belongs) perform random access, and may include the foregoing non-competitive random access procedure or competitive random access procedure.
  • the signal quality described in the embodiment of the present application refers to a parameter used to characterize the quality of the signal, for example, reference signal received power (RSRP), or reference signal received quality (Reference Signal) Receiving Quality, RSRQ).
  • RSRP reference signal received power
  • RSRQ reference signal received quality
  • the terminal may determine that the random access is initiated according to the indication of the network device.
  • the indication information may be the same as the configuration information.
  • the manner in which the terminal determines the random access resource according to the configuration information is similar to the method of determining the random access resource under the cell change triggered by the handover, and details are not described herein again.
  • the terminal After determining the random access resource according to the configuration information, the terminal performs random access with the target cell.
  • the target cell here may be a secondary base station or a cell under other base stations.
  • the random access between the foregoing terminal and the target cell may include the foregoing non-competitive random access procedure or a competitive random access procedure.
  • the terminal determines that the beam failure occurs, the beam failure recovery is performed, and the random access is determined.
  • the terminal performs random access with the serving base station according to the second configuration information, thereby implementing beam failure recovery.
  • the second configuration information indicates three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, each preamble index is associated with one SSB index: assuming preamble1 is associated with SSB index 1, preamble 2 association SSB index 2, preamble 3 associated with SSB index 3), the terminal may determine an SSB (for example, the SSB identified by the SSB index 2) according to the signal quality or other parameters, and send the sequence identified by the preamble 2 associated with the SSB index 2 Random access, it can be understood that the sequence of the preamble 2 identifier is specifically transmitted on the time-frequency resource, and is not described here.
  • SSB for example, the SSB identified by the SSB index 2
  • the manner in which the terminal determines the random access resource is similar to the foregoing, and is not described here.
  • the random access between the foregoing terminal and the target cell may include the foregoing non-competitive random access procedure or a competitive random access procedure.
  • the terminal may determine that a random access is initiated after receiving the PDCCH order.
  • the terminal performs random access with the serving base station according to the configuration information, thereby acquiring the uplink TA.
  • three preamble indexes for non-competitive random access are indicated by PDCCH order: preamble1, preamble 2, and preamble 3, and each preamble index is associated with one SSB index (assuming preamble 1 associated with SSB index 1, preamble 2 associated with SSB index) 2, preamble 3 associated with SSB index 3).
  • the terminal determines an SSB (for example, the SSB identified by the SSB index 2) according to the signal quality or other parameters, and performs random access by sending a sequence of the preamble 2 identifier associated with the SSB index 2. It can be understood that the sequence of the preamble 2 identifier is understood.
  • the specific time-frequency resource is similar to the previous one, and is not described here.
  • the preamble index is associated with the CRS-RS ID
  • the partial preamble index is associated with the SSB index and the partial preamble index is associated with the CRS-RS ID
  • the random access between the foregoing terminal and the serving base station may include the foregoing non-competitive random access procedure or a competitive random access procedure.
  • the terminal processes the random access resource configured by the network device.
  • the completion of the random access may include: the successful completion of the random access (which may also be referred to as random access success) and the failure of the random access (which may also be referred to as random access failure).
  • the terminal device when the terminal device receives the response to the access request, it determines that the random access procedure successfully completed, if the access request (random access preamble) The number of transmissions reaches a preset number of times, and the corresponding response has not been received, then the random access procedure is not successfully completed (Random Access procedure unsuccessfully completed), wherein the response may be a random access response or an uplink grant (for example, C-RNTI) A CRC (Cyclic Redundancy Check) or a downlink assignment (for example, a C-RNTI scrambled downlink assigned CRC (Cyclic Redundancy Check)).
  • the terminal device determines that the random access procedure successfully completed, if the access request (random access preamble) The number of transmissions reaches a preset number of times, and the corresponding response has not been received, then the random access procedure is not successfully completed (Random Access procedure unsuccessfully completed), wherein the response may be a random access response or an uplink grant (for example, C-RNTI
  • the conflict resolution ie, receiving the conflict resolution message sent by the base station determines that the random access is successfully completed, and if the number of times the access request (random access preamble) is sent reaches a preset number, If there is no conflict resolution message or if the corresponding random access response is not received within the preset time period, then it is determined that the random access is not successfully completed.
  • the random access completion includes the successful completion of the random access and/or the random access is not successfully completed.
  • reservation may be performed without release, for example, information indicating the first resource is saved.
  • the terminal can further perform beam failure recovery according to the indicated first resource when the subsequent beam failure occurs, without performing notification by special signaling, such as RRC reconfiguration, so that beam failure recovery can be reduced.
  • the delay also reduces signaling overhead. It can be understood that since the terminal retains the information indicating the first resource, the terminal can know which dedicated resources are reserved, and the dedicated resources are not allocated to other terminals before being released.
  • the information indicating the first resource in the configuration information includes three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, and each preamble index is associated with one SSB ID or CSI-RS ID (for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2), the terminal may determine a reference signal according to signal quality or other parameters (such as determining CSI-RS identified by CSI-RS ID 2) Random access is performed by transmitting a sequence of preamble 3 identities associated with CSI-RS ID2. After the random access is successfully completed, the preamble 1, the preamble 2, and the preamble 3 are not discarded, that is, the sequence indicated by the preamble 1, preamble 2, and preamble 3 is retained for use by the terminal.
  • CSI-RS ID for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2
  • part or all resources of the second resource may be released.
  • other resources for example, the first resource
  • the processing is not limited in this embodiment; after the random access triggered by the uplink TA is completed, part or all resources of the third resource may be released.
  • the third resource when processing the third resource.
  • the other resources for example, the first resource
  • the release of part or all of the second resource and the third resource may enable the released resource to be redistributed and improve the utilization of the resource.
  • the releasing of the resource means that the terminal discards the information indicating the corresponding resource, and the information indicating the resource is discarded, which means that the corresponding resource cannot be allocated to the terminal before being re-allocated to the terminal. reuse.
  • the information indicating the second resource in the configuration information includes three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, and each preamble index is associated with one SSB ID or CSI-RS ID (for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2), the terminal may determine a reference signal according to signal quality or other parameters (such as determining CSI-RS identified by CSI-RS ID 2) Random access is performed by transmitting a sequence of preamble 3 identities associated with CSI-RS ID2. When the random access is successfully completed, preamble 1, preamble 2, and preamble 3 are discarded, and the sequence indicated by preamble 1, preamble 2, and preamble 3 is released.
  • CSI-RS ID for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2
  • Random access is performed by transmitting a sequence
  • the information indicating the third resource in the configuration information includes three preamble indexes for non-competitive random access: preamble 1, preamble 2, and preamble 3, and each preamble index is associated with one SSB ID or CSI-RS ID (for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2), the terminal may determine a reference signal according to signal quality or other parameters (such as determining CSI-RS identified by CSI-RS ID 2) Random access is performed by transmitting a sequence of preamble 3 identities associated with CSI-RS ID2. When the random access is successfully completed, preamble 1, preamble 2, and preamble 3 are discarded, and the sequence indicated by preamble 1, preamble 2, and preamble 3 is released.
  • CSI-RS ID for example, Preamble 1 association CSI-RS ID1, preamble 2 association SSB index 1, preamble 3 association CSI-RS ID2
  • Random access is performed by transmitting a sequence
  • the partial resource or all resources of the first resource may be released (also referred to as discarding). It may be understood that, for example, as mentioned above, in this case, the first resource can also be reserved. Or, the length of the timer may be carried in the configuration information or other messages. After the timer expires, the terminal releases part or all resources of the first resource, and the timer starts after receiving the configuration information or It is understood that the start of the beam failure is started. It can be understood that there may be other start timings of the timer, which is not limited in this embodiment of the present application.
  • the terminal may be, after receiving the notification of the network side for releasing the random access resource, if the notification includes information indicating that the first resource is released, and releasing part or all resources of the first resource, the notification may be
  • the RRC reconfiguration message may optionally include information indicating which resource is specifically released in the notification.
  • the base station to which the target cell belongs sends the notification to the terminal due to the random access performed by the cell change.
  • the beam failure is restored or the uplink TA needs to be acquired.
  • Random access which may be that the serving base station sends the notification to the terminal.
  • part or all resources of the second resource may be released.
  • the third resource may be Some resources or all resources are released.
  • the second resource or the third resource may also be released according to a corresponding timer or corresponding indication information or other requirements.
  • the competitive random access resource may be reserved. It can be understood that the corresponding timer or the corresponding indication may also be used. Information or other requirements release the competitive random access resources.
  • the MAC reset includes: discarding all allocated non-competitive random access resources, for example, including Discard the first resource, discard the second resource, and discard the third resource.
  • the MAC reset may also include at least one of the following operations: stopping all MAC timers, stopping the ongoing random access procedure, clearing the Msg3 buffer, releasing the Temporary C-RNTI, canceling the triggered scheduling request process, canceling The triggered buffer status reporting process and the canceled power headroom reporting process.
  • the method implemented by the terminal in each of the foregoing method embodiments may also be implemented by a component (for example, an integrated circuit, a chip, etc.) that can be used for a terminal, where the network device (serving base station or target) is used in the foregoing method embodiment.
  • the method implemented by the base station or the base station to which the target cell belongs may also be implemented by components (for example, integrated circuits, chips, etc.) usable for the network device.
  • the embodiment of the present application further provides a corresponding communication device, where the communication device includes each part in the embodiment shown in FIG.
  • the corresponding module can be software, hardware, or a combination of software and hardware.
  • Fig. 3 shows a schematic structural view of a communication device.
  • the communication device 30 can be the network device 20 or the terminal 10 of FIG.
  • the communication device can be used to implement the method of the corresponding part described in the above method embodiments, and is specifically referred to the description in the above method embodiment.
  • the communication device 30 may include one or more processors 31, which may also be referred to as processing units, to implement certain control functions.
  • the processor 31 may be a general purpose processor or a dedicated processor or the like. For example, it can be a baseband processor, or a central processing unit.
  • the baseband processor can be used to process communication protocols and communication data
  • the central processing unit can be used to control communication devices (eg, base stations, baseband chips, DUs, or CUs, etc.), execute software programs, and process data of software programs. .
  • the processor 31 may also store instructions 33, which may be executed by the processor, such that the communication device 30 performs the corresponding terminal or network device described in the above method embodiments. Methods.
  • communication device 30 may include circuitry that may implement the functions of transmitting or receiving or communicating in the foregoing method embodiments.
  • the communication device 30 may include one or more memories 32 on which instructions 34 or intermediate data are stored, the instructions 34 being operative on the processor such that the communication device 30 executes The method described in the above method embodiments.
  • other related data may also be stored in the memory.
  • instructions and/or data can also be stored in the processor.
  • the processor and the memory may be provided separately or integrated.
  • the communication device 30 may also include a transceiver 35 and/or an antenna 36.
  • the processor 31 can be referred to as a processing unit.
  • the transceiver 35 may be referred to as a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., for implementing a transceiving function of the communication device.
  • a communication device may include a processor and a transceiver. If the communication device is used to implement the operation corresponding to the terminal in the embodiment shown in FIG. 2, for example, the configuration information may be received by the transceiver, and the processor determines to initiate random access, and the transceiver completes the random access process. In the operation related to transmitting and receiving information, the processor performs operations related to processing or control in the random access process, and further, when the random access is completed, the processor performs non-competitive random access resources or competition. For the specific random processing, refer to the related description of the foregoing embodiment.
  • the configuration information may be sent by the transceiver, and the transceiver performs the operation related to transmitting and receiving information in the random access process, and is completed by the processor. Performing operations related to processing or control in a random access process, where the transceiver can also be used to notify the terminal of which random access resources are specifically released.
  • the processor and transceiver described in the present application can be implemented in an integrated circuit (IC), an analog IC, a radio frequency integrated circuit RFIC, a mixed signal IC, an application specific integrated circuit (ASIC), a printed circuit board ( Printed circuit board, PCB), electronic equipment, etc.
  • IC integrated circuit
  • analog IC an analog IC
  • radio frequency integrated circuit RFIC a radio frequency integrated circuit
  • mixed signal IC an application specific integrated circuit
  • ASIC application specific integrated circuit
  • PCB printed circuit board
  • electronic equipment etc.
  • the processor and transceiver can also be fabricated using various 1C process technologies, such as complementary metal oxide semiconductor (CMOS), n-type metal oxide semiconductor (n-metal oxide semiconductor) (n-type metal oxide semiconductor (nMetal-oxide-semiconductor, NMOS), P-type A positive oxide metal oxide semiconductor (PMOS), a Bipolar Junction Transistor (BJT), a bipolar CMOS (BiCMOS), a silicon germanium (SiGe), or a gallium arsenide (GaAs).
  • CMOS complementary metal oxide semiconductor
  • n-metal oxide semiconductor n-type metal oxide semiconductor
  • PMOS P-type A positive oxide metal oxide semiconductor
  • BJT Bipolar Junction Transistor
  • BiCMOS bipolar CMOS
  • SiGe silicon germanium
  • GaAs gallium arsenide
  • the communication device is described by taking the network device 20 or the terminal 10 as an example, the scope of the communication device described in the present application is not limited to the network device, and the structure of the communication device may not be the same as that of FIG. limit.
  • the communication device can be a standalone device or can be part of a larger device.
  • the device can be:
  • the set of ICs may also include storage means for storing data and/or instructions;
  • an ASIC such as a modem (MSM);
  • FIG. 4 provides a schematic structural diagram of a terminal.
  • the terminal can be adapted for use in the system shown in FIG.
  • FIG. 4 shows only the main components of the terminal.
  • the terminal 10 includes a processor, a memory, a control circuit, an antenna, and an input and output device.
  • the processor is mainly used for processing communication protocols and communication data, and controlling the entire terminal, executing software programs, and processing data of the software programs.
  • Memory is primarily used to store software programs and data.
  • the RF circuit is mainly used for the conversion of baseband signals and RF signals and the processing of RF signals.
  • the antenna is mainly used to transmit and receive RF signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are primarily used to receive user input data and output data to the user.
  • the processor can read the software program in the storage unit, interpret and execute the instructions of the software program, and process the data of the software program.
  • the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal, and then sends the radio frequency signal to the outside through the antenna in the form of electromagnetic waves.
  • the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes the data.
  • FIG. 4 shows only one memory and processor for ease of illustration. In an actual terminal, there may be multiple processors and memories.
  • the memory may also be referred to as a storage medium or a storage device, and the like.
  • the processor may include a baseband processor and a central processing unit, and the baseband processor is mainly used to process communication protocols and communication data, and the central processing unit is mainly used to control and execute the entire user equipment.
  • the processor in FIG. 4 integrates the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and interconnected by technologies such as a bus.
  • the terminal may include multiple baseband processors to accommodate different network standards.
  • the terminal may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses.
  • the baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip.
  • the central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the functions of processing the communication protocol and the communication data may be built in the processor, or may be stored in the storage unit in the form of a software program, and the processor executes the software program to implement the baseband processing function.
  • the antenna and control circuit having the transceiving function can be regarded as the transceiving unit 11 of the terminal 10, and the processor having the processing function can be regarded as the processing unit 12 of the terminal 10.
  • the terminal 10 includes a transceiver unit 11 and a processing unit 12.
  • the transceiver unit can also be referred to as a transceiver, a transceiver, a transceiver, and the like.
  • the device for implementing the receiving function in the transceiver unit 101 can be regarded as a receiving unit, and the device for implementing the sending function in the transceiver unit 101 is regarded as a sending unit, that is, the transceiver unit 11 includes a receiving unit and a sending unit.
  • the receiving unit may also be referred to as a receiver, a receiver, a receiving circuit, etc.
  • the transmitting unit may be referred to as a transmitter, a transmitter, or a transmitting circuit.
  • a communication device 500 which may be a terminal, or may be a component of a terminal (for example, an integrated circuit, a chip, etc.), or may be another communication module.
  • the communication device may include: a receiving module 501, a sending module 502, and a processing module 503.
  • the storage module 504 is further included.
  • the receiving module 501 may be configured to receive configuration information, where the configuration information includes information for indicating a non-competitive random access resource, where the non-competitive random access resource includes a first resource, where the A resource is a random access resource for a beam failure recovery request;
  • the sending module 502 when a random access needs to be initiated, sends a random access request according to the configuration information received by the receiving module 501, where the random access needs to be initiated, which may be implemented by the processing module 503, and how to determine whether to initiate a random connection.
  • the configuration information received by the receiving module 501 where the random access needs to be initiated, which may be implemented by the processing module 503, and how to determine whether to initiate a random connection.
  • the processing module 503 is further configured to: when the random access is completed, processing the random access resource, including: retaining information indicating the first resource.
  • the processing of the second resource and the third resource by the processing module 503 may refer specifically to the description of the foregoing method embodiments.
  • the processing module 503 is further configured to process the random access resource after the random access is not successfully completed or according to an indication of the network device or according to a timer.
  • the receiving module 501 can be configured to receive, from the network device, an indication for releasing the random access resource.
  • the receiving module 501 is further configured to receive a random access response sent by the base station.
  • the receiving module 501 is further configured to: receive the random access response sent by the base station, and receive the conflict resolution message sent by the base station, where the sending module 502 is further configured to send the message 3.
  • the storage module 504 can be used to store instructions, or intermediate data (or information) or other related data (or information).
  • the storage module 504 can be coupled to the processing module 503, which invokes instructions or data in the storage module.
  • each of the above modules may also be referred to as a component or circuit.
  • the receiving module may be called a receiving circuit or a receiving component.
  • the foregoing communication device 500 can be implemented by at least one processor, by at least one processor and at least one memory, by at least one processor and at least one transceiver, or by at least one processing. And at least a transceiver and at least one memory implementation.
  • the above processor, transceiver and memory can be set independently or integrated.
  • processing units for performing these techniques at a communication device may be implemented in one or more general purpose processors, digital signal processors (DSPs), digital Signal processing device (DSPD), application specific integrated circuit (ASIC), programmable logic device (PLD), field programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or In any combination.
  • DSPs digital signal processors
  • DSPD digital Signal processing device
  • ASIC application specific integrated circuit
  • PLD programmable logic device
  • FPGA field programmable gate array
  • a general purpose processor may be a microprocessor.
  • the general purpose processor may be any conventional processor, controller, microcontroller, or state machine.
  • the processor may also be implemented by a combination of computing devices, such as a digital signal processor and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a digital signal processor core, or any other similar configuration. achieve.
  • the steps of the method or algorithm described in the embodiments of the present application may be directly embedded in hardware, an instruction executed by a processor, or a combination of the two.
  • the memory can be RAM memory, flash memory, ROM memory, EPROM memory, EEPROM memory, registers, hard disk, removable disk, CD-ROM, or any other form of storage medium in the art.
  • the memory can be coupled to the processor such that the processor can read information from the memory and can write information to the memory.
  • the memory can also be integrated into the processor.
  • the processor and the memory can be disposed in the ASIC, and the ASIC can be disposed in the terminal. Alternatively, the processor and memory may also be located in different components in the terminal.
  • the computer program product includes one or more computer instructions.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or packet
  • the center transmits to another website site, computer, server, or packet center by wire (eg, coaxial cable, fiber optic, digital subscriber line (DSL), or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a packet storage device that includes one or more available media integrated servers, packet centers, and the like.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a solid state disk (SSD)). Combinations of the above should also be included within the scope of the computer readable media.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a solid state disk (SSD)

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Abstract

本申请实施例公开了一种通信方法和装置，基站给终端配置用于波束失败恢复请求的非竞争性随机接入资源，终端在确定波束失败后，进行随机接入，在随机接入成功后，保留该非竞争性随机接入资源，从而可以减少波束失败恢复的时延以及减少信令开销。

Description

通信方法和装置
本申请要求于2018年1月11日提交中国国家知识产权局、申请号为201810027155.2、申请名称为“通信方法和装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请实施例涉及通信领域，尤其涉及通信方法和装置。
背景技术
随机接入是移动通信系统中非常关键的步骤，也是终端与基站建立通信链路的必要步骤。终端通过随机接入与基站进行信息交互，完成后续操作：如呼叫、资源请求、数据传输等。随机接入的性能直接影响到用户的体验。
在长期演进(LTE)系统中，会配置一个专用的前导(preamble)，用于随机接入，在随机接入成功完成后，会释放该专用的前导。
发明内容
第一方面，提供一种通信方法，该通信方法可以由终端或者终端的部件实现，可以包括：接收配置信息，其中，所述配置信息中包括用于指示非竞争性随机接入资源的信息，所述非竞争性随机接入资源包括第一资源，所述第一资源是用于波束失败恢复请求的非竞争性随机接入资源；根据所述配置信息，发送随机接入请求；当随机接入完成，保留指示所述第一资源的信息。可选的，该指示第一资源的信息包括在第一配置信息中。
上述方法，可以使得终端可以在后续发生波束失败时还可以继续依据所指示的第一资源进行波束失败恢复，而不需要通过专门的信令，例如RRC重配置进行通知，从而可以在减少波束失败恢复的时延同时减少信令开销。
一种可能的方式中，上述配置信息中还可以用于指示用于小区变更的非竞争性随机接入资源，该资源可以称为第二资源。可选的，指示第二资源的信息包括在第二配置信息中。
一种可能的方式中，所述配置信息中还包括与所述非竞争性随机接入资源中的部分资源或者全部资源对应的波束标识，其中所述波束标识为同步信号块标识或者信道状态信息参考信号标识；或者，一种可能的方式中，所述配置信息中还包括随机接入资源的标识与波束标识的关联关系，其中，随机接入资源包括竞争性随机接入资源和非竞争性随机接入资源，所述波束标识为同步信号块标识或者信道状态信息参考信号标识。从而可以用于终端来确定基站针对preamble发送的响应消息的接收参数。
一种可能的方式中，所述配置信息还可以用于指示竞争性随机接入资源。
一种可能的方式中，如果所述随机接入未成功完成，丢弃指示所述第一资源的信息，从而可以使得随机接入资源能够被及时释放，提高资源利用率。
一种可能的方式中，在发生波束失败时，发起随机接入，包括发送随机接入请求，那么在接收到对应于所述随机接入请求的响应或者接收冲突解决消息时，确定随机接入成功完成。
一种可能的方式中，所述配置信息还可以用于表征第一配置信息和/或第二配置信息的用途，从而可以使得终端可以接收到的配置信息的用途，可以使得终端可以获知配置的随机接入资源的用途，从而可以正确对随机接入资源进行处理。一种可能的方式中，上述指示的非竞争性随机接入资源包括时频域资源和/或码域资源。
第二方面，提供了一种通信装置，包括用于实现第一方面的通信方法的模块，部件或者电路。
第三方面，提供了一种通信系统，包括上述通信装置。
第四方面，本申请实施例提供了一种计算机存储介质，其上存储有程序，当其运行时，使得计算机执行上述方面所述的方法。
第五方面提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机执行上述各方面所述的方法。
附图说明
图1为本申请实施例的一种可能的通信系统的示意图；
图2为本申请一实施例的通信方法流程示意图；
图3为本申请一实施例的通信装置结构示意图；
图4为本申请一实施例的终端结构示意图；
图5为本申请一实施例的通信装置结构示意图。
具体实施方式
本申请所描述的技术可以用于各种无线通信网络，比如第五代5G网络、后续演进网络，或者多种网络的融合。
图1示出了本发明实施例的一种可能的通信系统的示意图。所述通信系统包括一个或多个网络设备(无线接入网)20以及一个或者多个终端10。所述无线接入网可以与核心网络(core network,CN)相连。网络设备20可以是可以是任意一种具有无线收发功能的设备。所述网络设备20包括但不限于：基站(例如基站BS,基站NodeB、演进型基站eNodeB或eNB、5G通信系统中的基站gNodeB或gNB、未来通信系统中的基站、WiFi系统中的接入节点、无线中继节点、无线回传节点)等。基站可以是：宏基站，微基站，微微基站，小站，中继站等。多个基站可以支持上述提及的同一种技术的网络，也可以支持上述提及的不同技术的网络。基站可以包含一个或多个共站或非共站的传输接收点(Transmission receiving point,TRP)。网络设备20还可以是云无线接入网络(cloud radio access network，CRAN)场景下的无线控制器、集中单元(centralized unit，CU)或者分布单元(distributed unit,DU)。网络设备20还可以服务器，可穿戴设备，或车载设备等。以下以网络设备20为基站为例进行说明。所述多 个网络设备20可以为同一类型的基站，也可以为不同类型的基站。基站可以与终端10进行通信，也可以通过中继站与终端10进行通信。终端10可以支持与不同技术的多个基站进行通信，例如，终端可以支持与支持LTE网络的基站通信，也可以支持与支持5G网络的基站通信，还可以支持与LTE网络的基站以及5G网络的基站的双连接。
终端10是一种具有无线收发功能的设备可以部署在陆地上，包括室内或室外、手持、穿戴或车载；也可以部署在水面上(如轮船等)；还可以部署在空中(例如飞机、气球和卫星上等)。所述终端设备可以是手机(mobile phone)、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、无人驾驶(self driving)中的无线终端、远程医疗(remote medical)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等等。本申请的实施例对应用场景不做限定。终端有时也可以称为终端设备、用户设备(user equipment，UE)、接入终端设备、UE单元、UE站、移动站、移动台、远方站、远程终端设备、移动设备、UE终端设备、终端设备、无线通信设备、UE代理或UE装置等。终端也可以是固定的或者移动的。
为便于理解下面对本申请中涉及到的一些名词做些说明。
本申请中，名词“网络”和“系统”可能会交替使用，“装置”和“设备”也可能会交替使用，但本领域的技术人员可以理解其含义。“通信装置”可以是可以是上述图1和图2中的网络设备(例如基站，DU、或者CU)，或者终端，也可以是网络设备的部件或者终端的的部件(例如，集成电路，芯片等等)，或者其他通信模块。
本申请实施例中，波束的英文可以写为beam。波束可以包括发射波束和接收波束。发射波束可以是指信号经天线发射出去后在空间不同方向上形成的信号强度的分布，接收波束可以是指从天线上接收到的无线信号在空间不同方向上的信号强度分布。可以理解的是，一个波束的一个或多个天线端口也可以看作是一个天线端口集，也就是说一个天线端口集包括至少一个天线端口。
可选地，波束可以是指具有一定能量传输指向性的预编码向量并且能够通过标识信息去标识该预编码向量，所述能量传输指向性是指在一定空间位置内，接收经过该预编码向量进行预编码处理后的信号具有较好的接收功率，如满足接收解调信噪比等，而在其他空间位置内，接收经过该预编码向量进行预编码处理后的信号的功率较低，不满足接收解调信噪比。不同的通信设备可以有不同的预编码向量，即对应不同的波束，针对通信设备的配置或者能力，一个通信设备在同一时刻可以使用多个不同的预编码向量中的一个或者多个，即同时可以形成一个波束或者多个波束。所述波束可以理解为空间资源。波束可以通过标识信息进行标识，可选地，所述标识信息可以对应配置该用户的对应的资源标识(identity，ID)，比如，所述标识信息可以对应配置的信道状态信息参考信号(Channel status information Reference Signal，CSI-RS)的ID或者资源；也可以是对应配置的上行探测参考信号(Sounding Reference Signal，SRS)的ID或者资源。或者，可选地，所述标识信息也可以是通过波束承载的信号或信道显 示或隐式承载的标识信息，比如，所述标识信息包括但是不限于通过波束发送的同步信号或者广播信道指示该波束的标识信息，包括但是不限于通过该波束发送的同步信号块(Synchronization Signal block，SS block)标识指示该波束的标识信息(比如，SS block index)，其中SS block(SSB)至少包括主同步信号(PSS，Primary synchronization signal)和/或辅同步信号(SSS，secondary synchronization signal)和/或广播信道(PBCH)。
服务小区为可用于为连接态的终端提供无线资源的小区；如果没有配置载波聚合CA或双连接DC，连接态的终端只有一个服务小区；如果连接态的终端配置了载波聚合(carrier aggregation，CA)和/或双连接(dual connectivity，DC),服务小区为至少一个小区，包括主小区和所有的辅小区SCell。主小区(Primary Cell,PCell)为工作在主频率，UE可以执行初始连接建立过程或发起连接重建立过程，或在切换过程被指示为主小区的小区。辅小区(Secondary Cell，SCell)，为工作在辅频率的小区，为连接态终端提供额外的无线资源。激活的服务小区为可用于数据传输的服务小区。主辅小区(Primary Secondary Cell，PSCell)为当辅基站的辅小区发生改变，可以发起随机接入的小区。PUCCH SCell为配置了PUCCH的SCell。
为方便说明，本申请的一些术语可能会以LTE系统中的术语为例，可以理解的是，在其他的系统中也可以使用其他的术语。
对于5G或者其他演进系统或者其他类似的系统，其随机接入资源的配置或者发起随机接入的场景可能与LTE有所不同，本申请实施例所提供的通信方法和装置，可以适用于上述5G或者其他演进系统或者其他类似的系统。
本申请实施例提供了一种通信方法，如图2所示，该方法可以包括：
S201，终端从网络设备接收配置信息。
可以理解的是，终端会从网络设备处接收指示随机接入资源的配置信息，该配置信息中可以至少包括用于指示非竞争性随机接入资源的信息。本申请实施例中，对网络侧发送该配置信息的时机不做限定。
随机接入可以包括非竞争性随机接入(contention free random access)或者竞争性随机接入(contention based random access)。非竞争性随机接入例如可以包括以下过程：终端发送随机接入请求(例如前导)、基站向终端发送接入响应(例如随机接入响应(random access response，RAR)或上行授权(uplink grant)或下行分配(downlink assignment))，其中，RAR包括以下至少一种：上行授权、上行定时提前指示、临时的小区的无线网络临时标识(temporary cell radio network temporary identifier，temporay C-RNTI)。而竞争性随机接入例如可以包括以下过程：终端发送随机接入请求(例如前导)、基站向终端发送随机接入响应(例如RAR)、终端发送消息3(Msg3)(包括连接连接建立请求或终端的标识C-RNTI)、冲突解决(基站向终端发送冲突解决(contention resolution)消息，包括C-RNTI加扰的uplink grant或downlink assignment，或，消息3的部分数据或全部数据)。在例如小区变更、波束失败恢复或者终端需要获取上行定时提前(timing advance，TA)等场景下，终端都可能发起(触发)随机接 入，此处的随机接入可以是竞争性随机接入，也可以是非竞争性随机接入。
可以理解的是，终端发起竞争性随机接入还是非竞争性随机接入，可以依据于网络设备有没有配置满足条件的非竞争性随机接入资源或者是依据于网络设备的配置，本申请实施例对此不做限定。
一种可能的方式中，上述小区变更场景可以是指由切换(比如主小区(Primary Cell,PCell)的变更)，或者双连接(dual connectivity，DC)下辅小区组(secondary cell group，SCG)改变等引起的终端的服务小区的变更。在该场景下，可以通过重配置消息携带指示随机接入资源的配置信息，该重配置消息例如可以是无线资源控制(Radio Resource Control，RRC)消息。为便于描述，可以将指示用于小区变更的随机接入资源的配置信息，称为第一配置信息。该场景下，发送第一配置信息的网络设备可以为源基站。上述RRC消息例如可以是携带移动性控制信息(mobilitycontrolinfo)的RRC重配置消息或者是用于同步重配置的RRC消息，本申请实施例对此不做限定。
一种可能的方式中，上述的波束失败恢复场景可以是指：当该终端的某个服务小区的所有服务波束(或者称为服务SSB或服务CSI-RS)的质量不满足条件时，表示发生波束失败，为了保证终端与网络设备之间的通信，需要进行波束失败恢复，即终端从候选波束(或者称为候选SSB或候选CSI-RS)中重新确定质量满足条件的波束(或者称为SSB或CSI-RS)，然后向网络设备发送波束失败恢复请求，通过该请求告知网络设备该终端选择的波束，以便基站将该选择的波束作为该网络设备与终端进行后续通信的服务波束。在该场景下，可以通过重配置消息携带指示随机接入资源的配置信息，该重配置消息例如可以是RRC消息。为便于描述，可以将指示用于波束失败恢复请求的随机接入资源的配置信息，称为第二配置信息。该场景下，发送第二配置信息的网络设备可以为服务基站。其中，终端依据服务波束的接收参数接收物理下行控制信道(physical downlink control channel，PDCCH)上传输的下行控制信息(例如uplink grant或downlink assignment)。
例如，如果终端只有一个服务小区，当该服务小区的所有服务波束(或者称为服务SSB或服务CSI-RS)的PDCCH质量连续预设次数都低于预设门限，那么确定发生波束失败；如果终端有至少两个服务小区，当某个服务小区的所有服务波束(或者成为服务SSB或服务CSI-RS)的PDCCH质量连续预设次数都低于预设门限，那么确定该服务小区发生波束失败。本申请实施例对如何判断波束失败不做限定。
上述配置信息可以包括第一配置信息和/或第二配置信息，也就是说，第一配置信息和第二配置信息可以携带在相同的消息中发送。可以理解的是，第一配置信息和第二配置信息也可以在不同的消息和/或在不同的时机发送，本申请实施例对此不做限定。
一种可能的方式中，上述的终端需要获取上行TA场景可以包括：网络设备需要发送下行数据但是发现终端出现上行失步，或者需要激活辅小区等场景。在该场景下，可以是通过例如PDCCH指示(order)携带指示随机接入资源的配置信息，可以理解的是，当终端收到PDCCH order后，会发起随机接入，也就是说PDCCH order是用 于触发随机接入的下行控制信息。该场景下，发送PDCCH order的网络设备可以为服务基站。
其中，非竞争性随机接入资源是指用于终端进行非竞争性随机接入的资源，竞争性随机接入资源是指用于终端进行竞争性随机接入的资源。非竞争性随机接入资源可以是终端专用的资源，而竞争性随机接入资源可以是公共的资源，小区内的多个终端设备共享的资源。竞争性随机接入资源和非竞争性随机接入资源均是由网络侧配置，网络设备将相关的指示信息发送给终端。
可以理解的是，指示非竞争性随机接入资源的信息和指示竞争性随机接入资源的信息可以携带在相同的消息中，也可以携带在不同的消息中，本申请实施例对此不做限定。一种可能的方式中，指示竞争性随机接入资源的信息可以携带在系统信息块(SIB)中。
当指示非竞争性随机接入资源的信息和指示竞争性随机接入资源的信息携带在相同的消息中时，一种可能的方式为第一配置信息或者第二配置信息或者PDCCH order中也可以包括指示竞争性随机接入资源的信息。
非竞争性随机接入资源和竞争性随机接入资源可以统称为随机接入资源，当本申请中提到随机接入资源时，可能是指非竞争性随机接入资源，也有可能是指竞争性随机接入资源。随机接入资源可以包括以下至少一种：时频域资源、码域资源。可选地，码域资源可以是前导(preamble)。可选地，可以将第二配置信息指示的非竞争性随机接入资源称为第一资源，可以将第一配置信息指示的非竞争性随机接入资源称为第二资源，将PDCCH order指示的非竞争性随机接入资源称为第三资源。网络设备具体配置的随机接入资源的信息通过配置信息传输给终端，例如，可以通过以下形式指示随机接入资源：
Figure PCTCN2019071263-appb-000001
其中，ssb通过SSB-ID标识，ra-PreambleIndex为前导索引，ra-Resources为随机接入的时频资源指示。
可选的，对于preamble，在配置信息中，也可以不通过索引的方式指示，而是用对应的序列本身来指示，也就是说，配置信息中包括的可能是preamble的索引，也可能是序列。
下文中，将第一配置信息或者第二配置信息或者PDCCH order统称为配置信息。第一配置信息和第二配置信息中所指示的随机接入资源的用途是不一样的，随机接入资源的用途可以在配置信息中通过显式或者隐式的方式表示，从而可以使得终端获知 所配置的随机接入资源的用途。例如，假设第一配置信息和第二配置信息是携带在相同的消息中，那么可以对第一配置信息进行标识或者说明或者指示来表征第一配置信息的用途，例如显式的表征第一配置信息是配置用于小区变更的随机接入资源的，那么可以隐式的获知第二配置信息是配置用于波束失败恢复请求的随机接入资源的，或者显式的表征第二配置信息是配置用于波束失败恢复请求的随机接入资源的，那么可以第一配置信息是配置用于小区变更的随机接入资源的，或者，对于第一配置信息和第二配置信息的用途都进行显式的表征，本申请实施例对表征第一配置信息和第二配置信息的用途的方式不做限定，只要能使得终端获知配置的随机接入资源的用途即可。可以理解的是，也可以是通过特定的消息或者信令来传输指示随机接入资源的信息，那么可以不需要标识便可以获知配置的随机接入资源的用途，例如通过PDCCH order发送的配置信息，通过检测确定接收到的是PDCCH order便可以知道该配置信息所指示的随机接入资源是用于获取上行TA目的的随机接入资源。可以理解的是，通过表征配置信息的用途，使得终端可以获知配置的随机接入资源的用途，从而可以正确对随机接入资源进行处理。
可选地，在配置信息中，还可以指示与随机接入资源对应的波束标识，该波束标识可以包括同步信号块标识(SSB index)或者信道状态信息参考信号标识CSI-RS ID。具体波束是通过SSB index还是CSI-RS ID标识可以通过预先定义或者网络设备配置。一种可能的方式中，波束标识可以与时频域资源关联，其中与时频域资源关联可以是：与所述时频域资源中的时域资源关联，或者与所述时频域资源中的频域资源关联，或者与所述时频域资源关联。一种可能的方式中，波束标识可以与码域资源关联。一种可能的方式中，波束标识可以与码域资源以及时频域资源均关联，。
指示与随机接入资源对应的波束标识一种可能的方式可以是：在配置信息中包括与所述随机接入资源中的部分资源或者全部资源对应的波束标识，例如，以preamble为例，假设配置了三个preamble用于随机接入，分别为第一preamble，第二preamble，第三preamble，第一preamble、第二preamble和第三preamble可能分别与SSB index1，SSB index 2以及SSB index 3对应，那么在配置信息中可以通知如表1的关联关系：
表1
随机接入资源 波束标识
第一preamble SSB index 1
第二preamble SSB index 2
第三preamble SSB index 3
指示与随机接入资源对应的波束标识的又一种可能的方式可以是：在配置信息中包括随机接入资源的标识与波束标识的关联关系，例如，以随机接入资源为preamble为例，假设配置了三个preamble用于随机接入，其索引(或者标识)分别为preamble1，preamble 2，preamble 3，preamble 1、preamble 2和preamble 3可能分别与SSB index 1，SSB index 2以及SSB index 3对应，那么在配置信息中可以通知如表2的关联关系：
表2
随机接入资源标识 波束标识
preamble 1 SSB index 1
preamble 2 SSB index 2
preamble 3 SSB index 3
可以理解的是，对于随机接入资源为时频域资源的情况，指示的方式与表1类似，可以是所述时频域资源中的时域资源的标识与波束标识的关联关系，也可以是所述时频域资源中的频域资源的标识与波束标识的关联关系，也可以可以时频域资源的标识与波束标识的关联关系。
S202，终端根据所述配置信息，进行随机接入。
终端在确定需要发起随机接入的情况下，根据配置信息中的内容可以确定出在什么资源上进行随机接入。
如前所述，小区变更、波束失败恢复或者终端需要获取上行定时提前等场景下，终端都可能确定发起竞争性随机接入或非竞争性随机接入。
一种可能的方式中，假设是切换(基站间切换或者基站内切换)触发的小区变更，可以是终端在接收到携带移动性控制信息(mobilitycontrolinfo)的RRC重配置消息或者是用于同步重配置的RRC消息后，确定发起随机接入。该情况下，终端会根据配置信息和变更后的小区所属的基站之间进行随机接入，从而完成小区变更。例如，假设发生的是基站间切换，终端和目标基站进行随机接入，配置信息中携带了三个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，且每个preamble索引关联一个SSB index:假设preamble1关联SSB index1、preamble 2关联SSB index2、preamble3关联SSB index 3，终端可以根据信号质量或者其他参数确定一个SSB(例如SSB index 2标识的SSB)，通过发送与SSB index 2关联的preamble 2标识的序列来进行随机接入，如果配置信息中指示了与时域资源或者频域资源或者时频域资源关联的波束标识，preamble 2标识的序列可以是在与SSB index 2关联的时域资源或者频域资源或者时频域资源上发送，如果在配置信息中没有指示与时域资源或者频域资源或者时频域资源关联的波束标识，preamble 2标识的序列可以是在配置信息中包括的时频域资源上发送。或者，例如，假设发生的是基站间切换，终端和目标基站之间进行随机接入，配置信息中携带了三个用于非竞争性随机接入的preamble索引：preamble1、preamble 2和preamble 3，每个preamble索引关联一个CSI-RS ID(preamble1关联CSI-RS ID1、preamble 2关联CSI-RS ID2、preamble 3关联CSI-RS ID3)，终端可以根据信号质量或者其他参数确定一个CSI-RS(例如CSI-RS ID1标识的CSI-RS)，并通过发送与CSI-RS ID1关联的preamble 1标识的序列来进行随机接入，可以理解的是，preamble 1标识的序列具体在什么时频资源上发送与前文类似，此处不再赘述。或者，假设发生的是基站间切换，终端和目标基站之间进行随机接入，配置信息中携带了三 个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，每个preamble索引关联一个SSB ID或CSI-RS ID(例如preamble 1关联CSI-RS ID1、preamble 2关联SSB index 1、preamble 3关联CSI-RS ID2)，终端可以根据信号质量或其他参数确定一个参考信号(如确定CSI-RS ID 2标识的CSI-RS)，并通过发送与CSI-RS ID2关联的preamble 3标识的序列来进行随机接入，可以理解的是，preamble 3标识的序列具体在什么时频资源上发送与前文类似，此处不再赘述。对于终端确定参考信号或者同步信号块的规则本申请实施例不做限定，例如可以是选择信号质量最好的参考信号或者同步信号块。可以理解的是，以上描述中以配置信息中指示的随机接入资源为preamble为例进行说明，对于指示的随机接入资源为其他的情况，实现方式类似，所不同的是：当指示为时域资源及其对应的波束标识时，终端确定出时域资源后，终端可以进一步根据指示的频域资源得到进行随机接入的时频域资源，当指示的为频域资源及其对应的波束标识时，终端确定出频域资源后，终端可以进一步根据指示的时域资源得到进行随机接入的时频域资源。目标基站是目标小区所属的基站。上述终端和基站(目标基站或者目标小区所属的基站)之间进行随机接入，可以包括前述的非竞争性随机接入过程或者竞争性随机接入过程。
可以理解的是，本申请实施例所描述的信号质量是指用于表征信号的质量的参数，例如可以是参考信号接收功率(reference signal received power，RSRP)，或者，参考信号接收质量(Reference Signal Receiving Quality，RSRQ)。
一种可能的方式中，假设是双连接辅小区组改变触发的小区变更，可以是终端根据网络设备的指示确定发起随机接入，可选地，该指示信息可以是与配置信息携带在相同的消息中。该场景下，终端根据配置信息，确定随机接入资源的方式与切换触发的小区变更下确定随机接入资源的方式类似，此处不再赘述。终端根据配置信息确定出随机接入资源后，和目标小区之间进行随机接入。其中，此处的目标小区可以辅基站或者其他基站下的小区。上述终端和目标小区之间进行随机接入，可以包括前述的非竞争性随机接入过程或者竞争性随机接入过程。
一种可能的方式中，当终端判断出发生波束失败需要进行波束失败恢复，会确定发起随机接入，对于如何判断发生波束失败，可以参考前文描述，此处不再赘述。该种情况下，终端会根据第二配置信息，和服务基站之间进行随机接入，从而实现波束失败恢复。例如，第二配置信息指示了三个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，每个preamble索引关联一个SSB index：假设preamble1关联SSB index 1、preamble 2关联SSB index 2、preamble 3关联SSB index 3)，终端可以根据信号质量或者其他参数确定一个SSB(例如为SSB index 2标识的SSB)，并通过发送与SSB index 2关联的preamble 2标识的序列来进行随机接入，可以理解的是，preamble 2标识的序列具体在什么时频资源上发送与前文类似，此处不再赘述。对于preamble索引与CRS-RS ID关联时，或者部分preamble索引与SSB index关联、部分preamble索引与CRS-RS ID关联时的情况，终端确定随机接入资源的方式与前文类似，此处不再赘述。上述终端和目标小区之间进行随机接入，可以包括前述的非竞争性随机接入过程或者竞争性随机接入过程。
一种可能的方式中，可以是终端在接收到PDCCH order后，确定会发起随机接入。该种情况下，终端会根据配置信息，和服务基站之间进行随机接入，从而获取上行TA。例如，通过PDCCH order指示三个用于非竞争性随机接入的preamble索引：preamble1、preamble 2和preamble 3，每个preamble索引关联一个SSB index(假设preamble 1关联SSB index 1、preamble 2关联SSB index 2、preamble 3关联SSB index 3)。终端根据信号质量或者其他参数确定一个SSB(例如SSB index 2标识的SSB)，并通过发送与SSB index 2关联的preamble 2标识的序列来进行随机接入，可以理解的是，preamble 2标识的序列具体在什么时频资源上发送与前文类似，此处不再赘述。对于preamble索引与CRS-RS ID关联时，或者部分preamble索引与SSB index关联、部分preamble索引与CRS-RS ID关联时的情况，终端确定随机接入资源的方式与前文类似，此处不再赘述。上述终端和服务基站之间进行随机接入，可以包括前述的非竞争性随机接入过程或者竞争性随机接入过程。
S203，当上述随机接入完成后，终端对网络设备配置的随机接入资源进行处理。
随机接入完成可以包括：随机接入成功完成(也可以称为随机接入成功)和随机接入未成功完成(也可以称为随机接入失败)。
可选地，对于非竞争性随机接入，当终端设备接收到针对接入请求的响应的时候，确定随机接入成功完成(Random Access procedure successfully completed)，若接入请求(随机接入前导)的发送次数达到预设次数，还没有接收到相应的响应，那么确定随机接入未成功完成(Random Access procedure unsuccessfully completed)，其中，该响应可以是随机接入响应或上行授权(例如C-RNTI加扰的上行授权的CRC(Cyclic Redundancy check，循环冗余校验))或者下行分配(例如C-RNTI加扰的下行分配的CRC(Cyclic Redundancy check，循环冗余校验))。对于竞争性随机接入，可以是冲突解决(即接收到基站发送的冲突解决消息)后确定随机接入成功完成，如果接入请求(随机接入前导)的发送次数达到预设次数，还接收到没有冲突解决消息或没有在预设时长内接收到相应的随机接入响应，那么确定随机接入未成功完成。随机接入完成包括随机接入成功完成和/或随机接入未成功完成。
在随机接入完成后，对于不同用途的非竞争性随机接入资源，可以有不同的处理方式。
例如，如果是波束失败触发的随机接入，且该随机接入完成(包括成功完成和未成功完成)，对于第一资源，可以进行保留，不进行释放，例如将指示第一资源的信息保存在终端，从而终端可以在后续发生波束失败时还可以继续依据所指示的第一资源进行波束失败恢复，而不需要通过专门的信令，例如RRC重配置进行通知，从而可以在减少波束失败恢复的时延同时减少信令开销。可以理解的是，由于终端保留了指示所述第一资源的信息，那么终端可以获知哪些专用资源被保留，这些专用资源在被释放前也不会被分配给其他终端使用。
例如，配置信息中指示第一资源的信息包括三个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，每个preamble索引关联一个SSB  ID或CSI-RS ID(例如preamble 1关联CSI-RS ID1、preamble 2关联SSB index 1、preamble 3关联CSI-RS ID2)，终端可以根据信号质量或其他参数确定一个参考信号(如确定CSI-RS ID 2标识的CSI-RS)，并通过发送与CSI-RS ID2关联的preamble 3标识的序列来进行随机接入。当随机接入成功完成后，不丢弃preamble 1、preamble 2和preamble 3，也就是说继续保留preamble 1、preamble 2和preamble 3指示的序列给所述终端使用。
在小区变更触发的随机接入完成后，可以对第二资源的部分资源或者全部资源进行释放，可选地，在处理第二资源时，可以对其他资源(例如第一资源)进行处理或不进行处理，本申请实施例对此不做限定；在由于获取上行TA触发的随机接入完成后，可以对第三资源的部分资源或者全部资源进行释放，可选地，在处理第三资源时，可以对其他资源(例如第一资源)进行处理或不进行处理，本申请实施例对此不做限定。对第二资源和第三资源的部分资源或者全部资源的释放，可以使得被释放的资源能够被重新分配，提高资源的利用率。其中，对资源进行释放(也可以叫做释放资源)是指终端丢弃指示相应资源的信息，指示资源的信息被丢弃了，也就意味着相应的资源在重新被分配给所述终端前该终端不能再使用。
例如，配置信息中指示第二资源的信息包括三个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，每个preamble索引关联一个SSB ID或CSI-RS ID(例如preamble 1关联CSI-RS ID1、preamble 2关联SSB index 1、preamble 3关联CSI-RS ID2)，终端可以根据信号质量或其他参数确定一个参考信号(如确定CSI-RS ID 2标识的CSI-RS)，并通过发送与CSI-RS ID2关联的preamble 3标识的序列来进行随机接入。当随机接入成功完成后，丢弃preamble 1、preamble 2和preamble 3，那么preamble 1、preamble 2和preamble 3所指示的序列被释放。
例如，配置信息中指示第三资源的信息包括三个用于非竞争性随机接入的preamble索引：preamble 1、preamble 2和preamble 3，每个preamble索引关联一个SSB ID或CSI-RS ID(例如preamble 1关联CSI-RS ID1、preamble 2关联SSB index 1、preamble 3关联CSI-RS ID2)，终端可以根据信号质量或其他参数确定一个参考信号(如确定CSI-RS ID 2标识的CSI-RS)，并通过发送与CSI-RS ID2关联的preamble 3标识的序列来进行随机接入。当随机接入成功完成后，丢弃preamble 1、preamble 2和preamble 3，那么preamble 1、preamble 2和preamble 3所指示的序列被释放。
可选地，如果是由于波束失败触发的随机接入，且该随机接入未成功完成，那么可以释放(也可以称作丢弃)第一资源的部分资源或全部资源，可以理解的是，如前所述，该种情况下，也可以保留第一资源。或者，在配置信息或者其他消息中还可以携带定时器的时间长度，在该定时器超时后，终端释放第一资源的部分资源或者全部资源，该定时器在可以接收到配置信息后启动或者在确定波束失败后启动，可以理解的是，该定时器的还可能有其他的启动时机，本申请实施例对此不做限定。或者，终端可以是在接收到网络侧的用于释放随机接入资源的通知后，如果该通知中包括指示释放第一资源的信息，释放第一资源的部分资源或者全部资源，该通知可以是RRC重配置消息，可选地，在该通知中可以包括用于指示具体释放哪种资源的信息。一种可 能的方式中，假设由于小区变更进行的随机接入，可以是目标小区所属的基站向终端发送该通知，一种可能的方式中，假设是由于波束失败恢复或者需要获取上行TA所进行的随机接入，可以是服务基站向终端发送该通知。可选的，在小区变更触发的随机接入未成功完成后，可以释放第二资源的部分资源或者全部资源，在由于获取上行TA触发的随机接入未成功完成后，可以对第三资源的部分资源或者全部资源进行释放。也可以依据相应的定时器或者相应的指示信息或者其他需求对第二资源或者第三资源进行释放。
此外，一种可能的方式中，不管是随机接入成功完成还是随机接入未成功完成，都可以保留竞争性随机接入资源，可以理解的是，也可以依据相应的定时器或者相应的指示信息或者其他需求对竞争性随机接入资源进行释放。此外，一种可能的方式中，如果终端确定进行媒体接入控制(medium access control，MAC)重置(reset)，那么MAC重置包括：丢弃所有分配的非竞争性随机接入资源，例如包括丢弃第一资源、丢弃第二资源、丢弃第三资源。MAC重置还以可以包括以下至少一种操作：停止所有的MAC的定时器、停止正在进行的随机接入过程、清空Msg3的缓冲区、释放Temporary C-RNTI、取消触发的调度请求过程、取消触发的缓冲区状态上报过程、取消触发的功率余量上报过程。
可以理解的是，上述各个方法实施例中由终端实现的方法，也可以由可用于终端的部件(例如，集成电路，芯片等等)实现，上述方法实施例中由网络设备(服务基站或者目标基站或者目标小区所属的基站)实现的方法，也可以由可用于网络设备的部件(例如，集成电路，芯片等等)实现。
相应于上述方法实施例给出的通信方法中所实现的方法和步骤，本申请实施例还提供了相应的通信装置，所述通信装置包括用于执行图2所示实施例中中每个部分相应的模块。所述模块可以是软件，也可以是硬件，或者是软件和硬件结合。
图3给出了一种通信装置的结构示意图。所述通信装置30可以是图1中的网络设备20或者终端10。通信装置可用于实现上述方法实施例中描述的对应部分的方法，具体参见上述方法实施例中的说明。
所述通信装置30可以包括一个或多个处理器31，所述处理器31也可以称为处理单元，可以实现一定的控制功能。所述处理器31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(如，基站、基带芯片，DU，或CU等)进行控制，执行软件程序，处理软件程序的数据。
在一种可选地设计中，处理器31也可以存有指令33，所述指令可以被所述处理器运行，使得所述通信装置30执行上述方法实施例中描述的对应于终端或者网络设备的方法。
在又一种可能的设计中，通信装置30可以包括电路，所述电路可以实现前述方法实施例中发送或接收或者通信的功能。
可选地，所述通信装置30中可以包括一个或多个存储器32，其上存有指令34或者中间数据，所述指令34可在所述处理器上被运行，使得所述通信装置30执行上述方法实施例中描述的方法。可选地，所述存储器中还可以存储有其他相关数据。可选 地处理器中也可以存储指令和/或数据。所述处理器和存储器可以单独设置，也可以集成在一起。
可选地，所述通信装置30还可以包括收发器35和/或天线36。所述处理器31可以称为处理单元。所述收发器35可以称为收发单元、收发机、收发电路、或者收发器等，用于实现通信装置的收发功能。
在一个设计中，一种通信装置(例如，集成电路、无线设备、电路模块，网络设备，终端等)可包括处理器和收发器。若该通信装置用于实现对应于图2所示实施例中终端的操作时，例如，可以由收发器接收上述配置信息，由处理器确定发起随机接入，由收发器完成进行随机接入过程中的与收发信息相关的操作，由处理器完成进行随机接入过程中的与处理或者控制相关的操作，进一步，当随机接入完成后，由处理器对非竞争性随机接入资源或者竞争性随机接入资源进行处理，具体的处理方式可以参考前述实施例的相关描述。若该通信装置用于实现对应于图2网络设备的操作时，例如，可以由收发器发送上述配置信息，由收发器完成进行随机接入过程中的与收发信息相关的操作，由处理器完成进行随机接入过程中的与处理或者控制相关的操作，其中，收发器还可以用于通知终端具体释放哪种随机接入资源。
本申请中描述的处理器和收发器可实现在集成电路(integrated circuit，IC)、模拟IC、射频集成电路RFIC、混合信号IC、专用集成电路(application specific integrated circuit，ASIC)、印刷电路板(printed circuit board，PCB)、电子设备等上。该处理器和收发器也可以用各种1C工艺技术来制造，例如互补金属氧化物半导体(complementary metal oxide semiconductor,CMOS)、N型金属氧化物半导体(nMetal-oxide-semiconductor，NMOS)、P型金属氧化物半导体(positive channel metal oxide semiconductor,PMOS)、双极结型晶体管(Bipolar Junction Transistor，BJT)、双极CMOS(BiCMOS)、硅锗(SiGe)、砷化镓(GaAs)等。
虽然在以上的实施例描述中,通信装置以网络设备20或者终端10为例来描述,但本申请中描述的通信装置的范围并不限于网络设备,而且通信装置的结构可以不受图3的限制。通信装置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，该IC集合也可以包括用于存储数据和/或指令的存储部件；
(3)ASIC，例如调制解调器(MSM)；
(4)可嵌入在其他设备内的模块；
(5)接收机、终端、蜂窝电话、无线设备、手持机、移动单元，网络设备等等；
(6)其他等等。
图4提供了一种终端的结构示意图。该终端可适用于图1所示出的系统中。为了便于说明，图4仅示出了终端的主要部件。如图4所示，终端10包括处理器、存储器、控制电路、天线以及输入输出装置。处理器主要用于对通信协议以及通信数据进行处理，以及对整个终端进行控制，执行软件程序，处理软件程序的数据。存储器主要用于存储软件程序和数据。射频电路主要用于基带信号与射频信号的转换以及对射频信 号的处理。天线主要用于收发电磁波形式的射频信号。输入输出装置，例如触摸屏、显示屏，键盘等主要用于接收用户输入的数据以及对用户输出数据。
当用户设备开机后，处理器可以读取存储单元中的软件程序，解释并执行软件程序的指令，处理软件程序的数据。当需要通过无线发送数据时，处理器对待发送的数据进行基带处理后，输出基带信号至射频电路，射频电路将基带信号进行射频处理后将射频信号通过天线以电磁波的形式向外发送。当有数据发送到用户设备时，射频电路通过天线接收到射频信号，将射频信号转换为基带信号，并将基带信号输出至处理器，处理器将基带信号转换为数据并对该数据进行处理。
本领域技术人员可以理解，为了便于说明，图4仅示出了一个存储器和处理器。在实际的终端中，可以存在多个处理器和存储器。存储器也可以称为存储介质或者存储设备等，本发明实施例对此不做限制。
作为一种可选的实现方式，处理器可以包括基带处理器和中央处理器，基带处理器主要用于对通信协议以及通信数据进行处理，中央处理器主要用于对整个用户设备进行控制，执行软件程序，处理软件程序的数据。图4中的处理器集成了基带处理器和中央处理器的功能，本领域技术人员可以理解，基带处理器和中央处理器也可以是各自独立的处理器，通过总线等技术互联。本领域技术人员可以理解，终端可以包括多个基带处理器以适应不同的网络制式，终端可以包括多个中央处理器以增强其处理能力，终端的各个部件可以通过各种总线连接。所述基带处理器也可以表述为基带处理电路或者基带处理芯片。所述中央处理器也可以表述为中央处理电路或者中央处理芯片。对通信协议以及通信数据进行处理的功能可以内置在处理器中，也可以以软件程序的形式存储在存储单元中，由处理器执行软件程序以实现基带处理功能。
在一个例子中，可以将具有收发功能的天线和控制电路视为终端10的收发单元11，将具有处理功能的处理器视为终端10的处理单元12。如图4所示，终端10包括收发单元11和处理单元12。收发单元也可以称为收发器、收发机、收发装置等。可选地，可以将收发单元101中用于实现接收功能的器件视为接收单元，将收发单元101中用于实现发送功能的器件视为发送单元，即收发单元11包括接收单元和发送单元示例性的，接收单元也可以称为接收机、接收器、接收电路等，发送单元可以称为发射机、发射器或者发射电路等。
如图5所示,本申请又一实施例提供了一种通信装置500,该通信装置可以是终端,也可以是终端的部件(例如，集成电路，芯片等等)，或者可以是其他通信模块,用于实现图2所示方法实施例中对应于终端的操作，该通信装置可以包括:接收模块501，发送模块502，处理模块503。可选的，还可以包括存储模块504。
其中，接收模块501可以用于接收配置信息，其中，所述配置信息中包括用于指示非竞争性随机接入资源的信息，所述非竞争性随机接入资源包括第一资源，所述第一资源是用于波束失败恢复请求的随机接入资源；
所述发送模块502在需要发起随机接入时，根据接收模块501接收的配置信息发送随机接入请求，其中，是否需要发起随机接入，可以由处理模块503实现，具体如何确定是否发起随机接入可以参考前述方法实施例处的相关描述。
进一步的，处理模块503还用于当所述随机接入完成，对随机接入资源进行处理， 包括：保留指示所述第一资源的信息。此外，处理模块503对于第二资源以及第三资源的处理可以具体参考前述方法实施例的描述。处理模块503还可以用于在随机接入未成功完成后或者根据网络设备的指示或者根据定时器对随机接入资源进行处理。接收模块501可以用于从网络设备接收用于释放随机接入资源的指示。
可选的，如果处理模块503确定发起的是非竞争性随机接入，那么接收模块501还可以用于接收基站发送的随机接入响应。如果处理模块确定发起的是竞争性随机接入，那么接收模块501还可以用于接收基站发送的随机接入响应，以及接收基站发送的冲突解决消息，发送模块502还可以用于发送消息3。
可选的，存储模块504可以用于存储指令，或者中间数据(或者信息)或者其他相关数据(或者信息)。一种可能的方式中，存储模块504可以与处理模块503耦合，处理模块调用存储模块中的指令或者数据。
可以理解的是，通信装置500中的各个模块可以单独设置，也可以集成在一起。上述各个模块也可以称为部件或者电路，例如接收模块可以叫接收电路或者接收部件。
可以理解的是，上述通信装置500可以通过至少一个处理器实现，也可以通过至少一个处理器和至少一个存储器实现，也可以通过至少一个处理器和至少一个收发器实现，也可以通过至少一个处理器和至少收发器和至少一个存储器实现。上述的处理器、收发器和存储器可以独立设置，也可以集成在一起。
需要说明的是，上述各个模块的操作或者实现方式，可以进一步参考方法实施例中的相关描述。
本领域技术人员还可以了解到本申请实施例列出的各种说明性逻辑块(illustrative logical block)和步骤(step)可以通过电子硬件、软件，或两者的结合进行实现。这样的功能是通过硬件还是软件来实现取决于特定的应用和整个系统的设计要求。本领域技术人员可以对于每种特定的应用，可以使用各种方法实现所述的功能，但这种实现不应被理解为超出本申请实施例保护的范围。
本申请所描述的技术可通过各种方式来实现。例如，这些技术可以用硬件、软件或者硬件结合的方式来实现。对于硬件实现，用于在通信装置(例如，基站，终端、网络实体、或芯片)处执行这些技术的处理单元，可以实现在一个或多个通用处理器、数字信号处理器(DSP)、数字信号处理器件(DSPD)、专用集成电路(ASIC)、可编程逻辑器件(PLD)、现场可编程门阵列(FPGA)、或其它可编程逻辑装置，离散门或晶体管逻辑，离散硬件部件，或上述任何组合中。通用处理器可以为微处理器，可选地，该通用处理器也可以为任何传统的处理器、控制器、微控制器或状态机。处理器也可以通过计算装置的组合来实现，例如数字信号处理器和微处理器，多个微处理器，一个或多个微处理器联合一个数字信号处理器核，或任何其它类似的配置来实现。
本领域普通技术人员可以理解：本文中涉及的第一、第二等各种数字编号仅为描述方便进行的区分，并不用来限制本申请实施例的范围，也表示先后顺序。“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。字符“/”一般表示前后关联对象是一种“或”的关系。
本申请实施例中所描述的方法或算法的步骤可以直接嵌入硬件、处理器执行的指 令、或者这两者的结合。存储器可以是RAM存储器、闪存、ROM存储器、EPROM存储器、EEPROM存储器、寄存器、硬盘、可移动磁盘、CD-ROM或本领域中其它任意形式的存储媒介。例如，存储器可以与处理器连接，以使得处理器可以从存储器中读取信息，并可以向存储器存写信息。可选地，存储器还可以集成到处理器中。处理器和存储器可以设置于ASIC中，ASIC可以设置于终端中。可选地，处理器和存储器也可以设置于终端中的不同的部件中。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机程序产品的形式实现。所述计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行所述计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或数据包中心通过有线(例如同轴电缆、光纤、数字用户线(DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据包中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据包中心等数据包存储设备。所述可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如固态硬盘Solid State Disk(SSD))等。上面的组合也应当包括在计算机可读介质的保护范围之内。
本说明书中各个实施例之间相同或相似的部分可以互相参考。
以上所述的本申请实施方式并不构成对本申请保护范围的限定。

Claims (23)

  1. 一种通信方法，其特征在于，包括：
    接收配置信息，其中，所述配置信息中包括用于指示非竞争性随机接入资源的信息，所述非竞争性随机接入资源包括用于波束失败恢复请求的非竞争性随机接入资源；
    根据所述配置信息，发送随机接入请求；
    当随机接入完成，保留用于波束失败恢复请求的非竞争性随机接入资源。
  2. 根据权利要求1所述的方法，其特征在于，所述非竞争性随机接入资源还包括：用于小区变更的非竞争性随机接入资源。
  3. 根据权利要求1或2所述的方法，其特征在于，所述非竞争性随机接入资源包括以下至少一项：时频域资源和码资源。
  4. 根据权利要求3所述的方法，其特征在于，所述码资源为前导。
  5. 根据权利要求1-4任一项所述的方法，其特征在于，所述配置信息中还包括与所述非竞争性随机接入资源中的部分资源或者全部资源对应的波束标识，其中所述波束标识为同步信号块标识或者信道状态信息参考信号标识。
  6. 根据权利要求1-4任一项所述的方法，其特征在于，所述配置信息中还包括随机接入资源的标识与波束标识的关联关系，其中，随机接入资源包括竞争性随机接入资源和非竞争性随机接入资源，所述波束标识为同步信号块标识或者信道状态信息参考信号标识。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述配置信息中还包括：用于指示竞争性随机接入资源的信息。
  8. 根据权利要求1-7任一项所述的方法，其特征在于，所述保留用于波束失败恢复请求的非竞争性随机接入资源，包括：保留指示所述用于波束失败恢复请求的非竞争性接入资源的信息。
  9. 根据权利要求1-8任一项所述的方法，其特征在于，在发生波束失败时，根据所述配置信息，发送随机接入请求；在接收到对应于所述随机接入请求的响应或者接收冲突解决消息时，确定随机接入成功完成。
  10. 一种通信装置，其特征在于，包括：
    接收模块，用于接收配置信息，其中，所述配置信息中包括用于指示非竞争性随机接入资源的信息，所述非竞争性随机接入资源包括用于波束失败恢复请求的非竞争性随机接入资源；
    发送模块，用于根据所述配置信息，发送随机接入请求；
    处理模块，用于当随机接入完成，保留用于波束失败恢复请求的非竞争性随机接入资源。
  11. 根据权利要求10所述的装置，其特征在于，所述非竞争性随机接入资源还包括：用于小区变更的非竞争性随机接入资源。
  12. 根据权利要求10或11所述的装置，其特征在于，所述非竞争性随机接入资源包括以下至少一项：时频域资源和码资源。
  13. 根据权利要求12所述的装置，其特征在于，所述码资源为前导。
  14. 根据权利要求10-13任一项所述的装置，其特征在于，所述配置信息中还包 括与所述非竞争性随机接入资源中的部分资源或者全部资源对应的波束标识，其中所述波束标识为同步信号块标识或者信道状态信息参考信号标识。
  15. 根据权利要求10-13任一项所述的装置，其特征在于，所述配置信息中还包括随机接入资源的标识与波束标识的关联关系，其中，随机接入资源包括竞争性随机接入资源和非竞争性随机接入资源，所述波束标识为同步信号块标识或者信道状态信息参考信号标识。
  16. 根据权利要求10-15任一项所述的装置，其特征在于，所述配置信息中还包括：用于指示竞争性随机接入资源的信息。
  17. 根据权利要求10-16任一项所述的装置，其特征在于，所述发送模块用于在发生波束失败时，根据所述配置信息，发送随机接入请求；所述处理模块在所述接收模块接收到对应于所述随机接入请求的响应或者接收冲突解决消息时，确定随机接入成功完成。
  18. 根据权利要求10-17任一项所述的装置，其特征在于，所述处理模块用于保留指示所述用于波束失败恢复请求的非竞争性接入资源的信息。
  19. 根据权利要求10-18任一项所述的装置，其特征在于，所述装置为终端。
  20. 一种计算机可读存储介质，包括指令，当所述指令在计算机上运行时，使得所述计算机执行如权利要求1至9任一项所述的方法。
  21. 一种通信装置，其特征在于，包括存储器和处理器，所述存储器存储有指令，所述指令在所述处理器被运行，使得所述通信装置实现如权利要求1-9任一项所述的方法。
  22. 一种通信系统，其特征在于，包括基站和如权利要求10-19任一项所述的通信装置，或者，包括基站和如权利要求21所述的通信装置。
  23. 一种计算机程序产品，其特征在于，所述产品包括指令，当所述指令被运行时，使得通信装置实现如权利要求1-9任一项所述的方法。
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