WO2019149088A1 - 一种随机接入方法及装置 - Google Patents

一种随机接入方法及装置 Download PDF

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Publication number
WO2019149088A1
WO2019149088A1 PCT/CN2019/072240 CN2019072240W WO2019149088A1 WO 2019149088 A1 WO2019149088 A1 WO 2019149088A1 CN 2019072240 W CN2019072240 W CN 2019072240W WO 2019149088 A1 WO2019149088 A1 WO 2019149088A1
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WIPO (PCT)
Prior art keywords
random access
ssb
ssb group
uplink carrier
threshold
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Application number
PCT/CN2019/072240
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English (en)
French (fr)
Inventor
谢信乾
郭志恒
费永强
毕文平
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 EP19747359.8A priority Critical patent/EP3742857A4/en
Publication of WO2019149088A1 publication Critical patent/WO2019149088A1/zh
Priority to US16/940,688 priority patent/US11425758B2/en

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • the present application relates to the field of wireless communications technologies, and in particular, to a random access method and apparatus.
  • NR 5G New Radio Interface
  • LTE Long Term Evolution
  • NR is most likely to be deployed on the 3.5GHz frequency first, but considering that the uplink coverage of the system cannot match the downlink coverage at this frequency, the uplink rate of the system is limited.
  • the NR system also deploys uplink carriers in other upstream frequency bands.
  • the uplink carrier of the NR system can be deployed on the uplink frequency band of the 1.8 GHz frequency of the LTE system to enhance the uplink coverage of the NR system, so that the LTE system and the NR system, that is, the NR system, will exist simultaneously in the uplink frequency band of the LTE.
  • An upstream frequency band is shared with the LTE system.
  • the uplink carrier of the NR system can also be deployed on a dedicated uplink frequency band that is not shared with the LTE system or other systems. Therefore, in addition to the uplink carrier deployed on the frequency of 3.5 GHz, the uplink carrier deployed by the NR system in other uplink bands may be referred to as an increased uplink (SUL) carrier.
  • SUL increased uplink
  • the terminal device when the terminal device is configured with an uplink carrier of 3.5 GHz and an uplink carrier of 1.8 GHz (which is a SUL carrier), the terminal device receives power according to reference signal received on a downlink carrier of 3.5 GHz (Reference signal received power, RSRP) is compared with an RSRP threshold (denoted as RSRP-th), which is a parameter broadcast by the network device to all terminal devices in the cell.
  • the uplink carrier selected by the terminal device cannot be guaranteed to be a suitable uplink carrier.
  • the antenna configuration of the network device at 3.5 GHz and the antenna configuration at 1.8 GHz may be different, for example, the 3.5 GHz beam is narrower than the 1.8 GHz beam, and the 3.5 GHz antenna direction and the 1.8 GHz antenna direction are also It may be different. As shown in Figure 1, this does not guarantee that the uplink coverage performance of 1.8GHz in the coverage of the network device is always better than the uplink coverage performance of 3.5GHz in the actual network. Some areas may appear in the cell.
  • the uplink coverage performance of GHz is better than the uplink coverage performance of 1.8 GHz.
  • the embodiment of the present application provides a random access method and device, so that the terminal device selects a more suitable uplink carrier.
  • a random access method includes:
  • the first indication information received by the terminal device from the network device where the first indication information indicates at least one SSB group, where each SSB group in the at least one SSB group includes at least one SSB, and each SSB group corresponds to one random access
  • the terminal device sends a random access signal to the network device according to the random access mode corresponding to the target SSB group; the target SSB group is one of the at least one SSB group.
  • the terminal device receives the first indication information from the network device, where the first indication information indicates the at least one SSB group, and sends a random access signal to the network device according to the random access manner corresponding to the target SSB group. Since the target SSB groups determined by the terminal devices in different locations in the cell may be different, the terminal devices in different locations in the cell can send random access signals to the network device by using different random access methods, compared to the prior art. It is more flexible for each terminal device to use the same random access method to send random access signals to network devices. In turn, the success rate of random access of the terminal device can be improved.
  • the method further includes: determining, by the terminal device, the target SSB; and determining, by the terminal device, the SSB group to which the target SSB belongs is the target SSB group.
  • the method for determining the target SSB is not limited in the embodiment of the present application.
  • the target SSB is used to enable the terminal device to determine the random access mode to be used.
  • At least one SSB group includes a first SSB group, and the first SSB group corresponds to a first random access mode.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the first uplink carrier.
  • the first uplink carrier is one of a plurality of uplink carriers.
  • the terminal device sends a random access signal, that is, the terminal, to the network device according to the first random access manner.
  • the device sends a random access signal to the network device on the first uplink carrier.
  • the at least one SSB group further includes a second SSB group, and the second SSB group corresponds to the second random access mode; the second random access mode is that the terminal device receives the power according to the reference signal and the first threshold.
  • the size relationship selects one uplink carrier from multiple uplink carriers to send a random access signal to the network device.
  • the terminal device sends a random access signal to the network device according to the second random access manner, that is, the terminal device according to the The size of the reference signal received power and the first threshold are selected, and one uplink carrier is selected from the plurality of uplink carriers to send a random access signal to the network device.
  • the second random access mode further instructs the terminal device to perform cell reselection when the random access fails, or select one of the plurality of uplink carriers except the first selected when the random access fails.
  • the uplink carrier outside the uplink carrier sends a random access signal to the network device.
  • the second random access mode may further configure the behavior of the terminal device after the random access failure.
  • the at least one SSB group further includes a third SSB group and a fourth SSB group; the third SSB group corresponds to the third random access mode, and the fourth SSB group corresponds to the fourth random access mode;
  • the method includes: the terminal device receives the second indication information from the network device, where the second indication information indicates the second threshold and the third threshold; wherein the second threshold corresponds to the third SSB group, the third threshold corresponds to the fourth SSB group, and the second The threshold is different from the third threshold;
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the multiple uplink carriers according to the relationship between the received power of the reference signal and the second threshold;
  • the random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the third threshold.
  • the terminal device sends the network according to the third random access manner.
  • the device sends a random access signal, that is, the terminal device selects one uplink carrier from the plurality of uplink carriers to send a random access signal to the network device according to the relationship between the received power of the reference signal and the second threshold.
  • the terminal device when the at least one SSB group indicated by the first indication information includes the fourth SSB group, the second indication information indicates the third threshold, and the target SSB group is the fourth SSB group, the terminal device according to the fourth random access manner
  • the network device sends a random access signal, that is, the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the third threshold.
  • different RSRP thresholds are configured for different SSB groups, which can enable terminal devices in different locations in the cell to adopt a more optimal RSRP threshold for uplink. Carrier selection, thereby improving the success rate of random access of terminal equipment.
  • it also includes:
  • the terminal device When the target SSB does not belong to any one of the at least one SSB group, the terminal device sends a random access signal to the network device according to the fifth random access mode.
  • the terminal device can ensure that the terminal device sends the random access signal to the network device by using a suitable random access method.
  • the multiple uplink carriers include at least a first uplink carrier and a second uplink carrier;
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier, and/or the first uplink carrier is a TDD carrier, and the second uplink carrier is a SUL carrier.
  • a random access method includes:
  • the network device determines first indication information, where the first indication information indicates at least one SSB group, where each SSB group in the at least one SSB group includes at least one SSB, and each SSB group corresponds to one random access mode; Sending the first indication information to the terminal device.
  • the network device sends the first indication information to the terminal device, so that the terminal devices in different locations in the cell use different random access methods to send random access signals to the network device, compared with each terminal device in the prior art. It is more flexible to use the same random access method to send random access signals to network devices, thereby improving the success rate of random access of terminal devices.
  • the at least one SSB group includes the first SSB group, and the first SSB group corresponds to the first random access mode; the first random access mode is that the terminal device sends the random device to the network device on the first uplink carrier.
  • the at least one SSB group further includes a second SSB group, and the second SSB group corresponds to the second random access mode; the second random access mode is that the terminal device receives the power according to the reference signal and the first threshold.
  • the size relationship selects one uplink carrier from multiple uplink carriers to send a random access signal to the network device.
  • the at least one SSB group further includes a third SSB group and a fourth SSB group; the third SSB group corresponds to the third random access mode, and the fourth SSB group corresponds to the fourth random access mode;
  • the method includes: the network device sends the second indication information to the terminal device, where the second indication information indicates the second threshold and the third threshold; wherein the second threshold corresponds to the third SSB group, the third threshold corresponds to the fourth SSB group, and the second The threshold is different from the third threshold;
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the multiple uplink carriers according to the relationship between the received power of the reference signal and the second threshold;
  • the random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the third threshold.
  • the multiple uplink carriers include at least a first uplink carrier and a second uplink carrier;
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier, and/or the first uplink carrier is a TDD carrier, and the second uplink carrier is a SUL carrier.
  • a third aspect a method for receiving information, the method comprising: receiving, by a terminal device, first indication information, where the first indication information indicates at least one first synchronization signal/broadcast channel block SSB; the terminal device is at a target In the case that the SSB is the first SSB, the terminal device performs random access in the first mode.
  • the method further includes: when the target SSB is not the first SSB, the terminal device performs random access in a second manner, where the first manner Different from the second method.
  • the method further includes: the terminal device receiving second indication information from the network device, the second indication information indicating at least one second SSB; In the case of the second SSB, the terminal device performs random access in a second manner, wherein the first manner is different from the second manner.
  • the method further includes: when the target SSB is not the first SSB and not the second SSB, the terminal device performs random access in a third manner.
  • the third mode is different from the first mode and the second mode.
  • the first mode is that the terminal device sends a random access signal to the network device on a first uplink carrier, where the second mode is that the terminal device is from the first And selecting, by using one of the uplink carrier and the second uplink carrier, the random access signal to send to the network device; or, the first mode is that the terminal device is configured by using the first uplink carrier and the second Transmitting, by the uplink carrier, the random access signal to the network device, where the second mode is that the terminal device sends the random access to the network device on the first uplink carrier signal.
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier.
  • a fourth aspect a method for transmitting information, the method comprising: determining, by a network device, first indication information, where the first indication information indicates at least one first synchronization signal/broadcast channel block SSB, and the network device sends the information to the terminal device
  • the first indication information is used to enable the terminal device to perform random access in the first manner if the target SSB is the first SSB.
  • the method further includes: the network device sending the second indication information to the terminal device, where the second indication information indicates the at least one second SSB; so that the terminal device is in the target SSB In the case of the second SSB, random access is performed in the second mode.
  • the first mode is different from the second mode.
  • the first mode is that the terminal device sends a random access signal to the network device on a first uplink carrier, where the second mode is that the terminal device is from the first And selecting, by using one of the uplink carrier and the second uplink carrier, the random access signal to send to the network device; or, the first mode is that the terminal device is configured by using the first uplink carrier and the second Transmitting, by the uplink carrier, the random access signal to the network device, where the second mode is that the terminal device sends the random access to the network device on the first uplink carrier signal.
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier.
  • the application provides a terminal device, where the terminal device includes a transceiver, a processor, and a memory: the memory is used to store a computer program;
  • the processor invokes a computer program stored by the memory, through which the method of any of the first aspect or the first aspect may be performed. For specific implementation steps, refer to the first aspect, which is not described here.
  • the processor invokes a computer program stored by the memory to perform a method of designing any of the third or third aspects by the transceiver. For specific implementation steps, refer to the third aspect, which is not described here.
  • the application provides a network device, where the network device includes: a transceiver, a processor, and a memory: the memory is used to store a computer program;
  • the processor invokes a computer program stored by the memory to perform a method of any of the possible aspects of the second aspect or the second aspect by the transceiver. For specific implementation steps, refer to the second aspect, which is not described here.
  • the processor invokes a computer program stored by the memory, through which the method of designing any of the fourth or fourth aspects is performed.
  • a computer program stored by the memory, through which the method of designing any of the fourth or fourth aspects is performed.
  • the method of designing any of the fourth or fourth aspects is performed.
  • the present application provides a random access device that performs the method of any of the possible aspects of the first aspect or the first aspect.
  • the apparatus comprises means for performing the method of any of the possible aspects of the first aspect or the first aspect.
  • the method of any one of the possible aspects of the third aspect or the third aspect is performed.
  • the apparatus comprises means for performing the method of any of the possible aspects of the third aspect or the third aspect.
  • the present application provides a random access device that performs the method in any one of the possible aspects of the second aspect or the second aspect.
  • the apparatus comprises means for performing the method of any of the possible aspects of the second aspect or the second aspect.
  • the method of any one of the possible aspects of the fourth aspect or the fourth aspect is performed.
  • the apparatus comprises means for performing the method of any one of the possible aspects of the fourth aspect or the fourth aspect.
  • the present application further provides a computer readable storage medium storing a computer program that, when executed on a computer, causes the computer to perform the method described in the above aspects.
  • the present application also provides a computer program product comprising a program, which when executed on a computer, causes the computer to perform the method described in the above aspects.
  • FIG. 1 is a schematic diagram of an antenna configuration of a 3.5 GHz and an antenna configuration of 1.8 GHz according to an embodiment of the present application;
  • FIG. 2 is a schematic diagram of an application scenario in an embodiment of the present application.
  • FIG. 3 is a flowchart of an overview of a random access method in an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a random access device according to an embodiment of the present application.
  • FIG. 5 is a second schematic structural diagram of a random access device according to an embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of a network device in an embodiment of the present application.
  • the network device involved in the embodiment of the present application is an access device in which the terminal device accesses the mobile communication system in a wireless manner, and may be a base station (NodeB), an evolved base station (eNodeB), a base station in a 5G mobile communication system, and a lower A generation of a mobile communication base station (next generation Node B, gNB), a base station in a future mobile communication system, or an access node in a Wi-Fi system, etc.
  • the specific technology and specific device form adopted by the network device in this embodiment of the present application are not limited.
  • the terminal equipment (Terminal equipment) involved in the embodiments of the present application may also be referred to as a terminal, a user equipment (UE), a mobile station (MS), a mobile terminal (MT), and the like.
  • the terminal device can 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 an industrial control (industrial control).
  • Wireless terminal wireless terminal in self-driving, wireless terminal in remote medical surgery, 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 synchronization signal/broadcast channel block (SS/PBCH block, SSB) is defined in the new air interface technology in 5G, and an SSB includes a primary synchronization signal (PSS) and a secondary synchronization signal (Secondary). Synchronization Signal (SSS) and Physical Broadcast Channel (PBCH).
  • PSS primary synchronization signal
  • Secondary secondary synchronization signal
  • PBCH Physical Broadcast Channel
  • OFDM Orthogonal Frequency Division Multiplexing
  • one SSB occupies a continuous 240 subcarriers, and these 240 subcarriers are numbered from 0 to 239.
  • one frequency domain resource block (hereinafter referred to as a resource block) includes 12 consecutive subcarriers, and the 12 subcarriers are numbered from 0 to 11, and therefore, 240 subcarriers occupy one SSB.
  • a carrier can also be referred to as 20 resource blocks, and these 20 resource blocks are numbered from 0 to 19.
  • multiple uplink carriers may include at least two uplink carriers.
  • the multiple uplink carriers include a first uplink carrier and a second uplink carrier, where the frequency of the first uplink carrier is higher than the second uplink carrier, for example, the carrier of the first uplink carrier is a 3.5 GHz band.
  • the second uplink carrier is a carrier of the 1.8 GHz band.
  • the multiple uplink carriers include a first uplink carrier and a second uplink carrier, where the first uplink carrier is a TDD carrier and the second uplink carrier is a SUL carrier.
  • the multiple uplink carriers include a first uplink carrier and a second uplink carrier, where the first uplink carrier is a TDD carrier, the second uplink carrier is a SUL carrier, and the frequency of the first uplink carrier is higher than The frequency of the two uplink carriers.
  • FIG. 2 is a schematic diagram of a possible application scenario of the embodiment of the present application, where the network device configures two uplink carriers, and the two uplink carriers are used by the terminal device to send an uplink signal to the network device.
  • the network device may be a network device of the NR, where one uplink carrier is an NR UL carrier, the uplink carrier is a TDD uplink carrier, and the other uplink carrier is an NR SUL carrier.
  • the embodiment of the present application provides a random access method, which implements a terminal device to select a suitable uplink carrier for random access, and ensures a success rate of random access of the terminal device.
  • the method includes:
  • Step 300 The network device determines the first indication information.
  • the first indication information indicates at least one SSB group, where each SSB group in the at least one SSB group includes at least one SSB, and each SSB group corresponds to one random access mode.
  • the SSB group in the embodiment of the present application is only used to indicate that the number of SSBs corresponding to the same random access mode may be greater than or equal to 1, and does not constitute a limitation on the embodiment of the present application, that is, the SSB group is only used to refer to one or more. SSB does not limit the concept of the SSB group.
  • the same SSB does not exist in any two SSB groups.
  • the at least one SSB group may include but is not limited to at least one of the following SSB groups:
  • the first SSB group, the first SSB group corresponds to the first random access mode.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the first uplink carrier.
  • the first uplink carrier is one of a plurality of uplink carriers. It should be understood that the plurality of uplink carriers are uplink carriers that the terminal device can use to transmit random access signals.
  • the at least one SSB group may further include a fifth SSB group, and the fifth SSB group corresponds to a sixth random access mode, where the sixth random access mode is that the terminal device sends a random access signal to the network device on the second uplink carrier.
  • the second uplink carrier is one of a plurality of uplink carriers.
  • the second SSB group, the second SSB group corresponds to the second random access mode.
  • the second random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the first threshold.
  • the second random access mode may be: when the reference signal received power is greater than or equal to the first threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, where the reference signal is When the received power is less than the first threshold, the terminal device sends a random access signal to the network device on the second uplink carrier.
  • the reference signal receiving power is only an example, and may also be other parameters, such as signal receiving power, which is not limited in this application.
  • the first threshold value may be a value defined in the protocol, or may be a value that is notified by the network device to the terminal device, or may be a value determined by the terminal device according to a preset rule, or may be determined by the terminal device according to statistical experience. This application does not limit this.
  • the second random access mode may further indicate that the terminal device performs cell reselection when the random access fails, or the terminal device selects one of the plurality of uplink carriers except the first selected uplink carrier when the random access fails.
  • the outer uplink carrier sends a random access signal to the network device.
  • the second random access mode may be: when the reference signal received power is greater than or equal to the first threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, where If the reference signal received power is less than the first threshold, the terminal device sends a random access signal to the network device on the second uplink carrier; if the terminal device fails to access the random device, the terminal device performs cell reselection.
  • the second random access mode may be: when the reference signal received power is greater than or equal to the first threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, where If the reference signal received power is less than the first threshold, the terminal device sends a random access signal to the network device on the second uplink carrier; if the terminal device fails to access the random device, the terminal device uses multiple uplink carriers. Selecting an uplink carrier other than the first selected uplink carrier to send a random access signal to the network device.
  • the network device further sends second indication information to the terminal device, where the second indication information indicates a second threshold and a third threshold.
  • the second threshold corresponds to the third SSB group
  • the third threshold corresponds to the fourth SSB group
  • the second threshold is different from the third threshold.
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the second threshold.
  • the fourth random access mode is that the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the third threshold.
  • the first indication information and the second indication information may be included in one signaling, or may be included in two signalings.
  • the second threshold here is configured for the third SSB group
  • the third threshold is configured for the fourth SSB group
  • the second threshold is different from the third threshold. Therefore, in the embodiment of the present application, different RSRP thresholds are configured for different SSB groups, which can enable terminal devices in different locations in the cell to adopt a more optimal RSRP threshold for uplink. Carrier selection, thereby improving the success rate of random access of terminal equipment.
  • the first indication information indicates an SSB group
  • the random access mode corresponding to the SSB group is that the terminal device sends a random access signal to the network device on the first uplink carrier.
  • the first indication information indicates two SSB groups, wherein the random access mode corresponding to the first SSB group is to send a random access signal to the network device on the first uplink carrier.
  • the random access mode corresponding to the second SSB group is that, when the reference signal receiving power is greater than or equal to the first threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, where the reference signal receiving power is less than the In the case of the first threshold, the terminal device sends a random access signal to the network device on the second uplink carrier; if the terminal device fails to access the random device, the terminal device performs cell reselection.
  • the random access mode corresponding to the second SSB group is that, when the reference signal receiving power is greater than or equal to the first threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, where the reference signal is If the received power is less than the first threshold, the terminal device sends a random access signal to the network device on the second uplink carrier; if the terminal device fails to access the random device, the terminal device selects one of the multiple uplink carriers for the first time. The uplink carrier outside the selected uplink carrier sends a random access signal to the network device.
  • the first indication information indicates two SSB groups, which are a third SSB group and a fourth SSB group
  • the second indication information indicates a second threshold and a third threshold.
  • the second threshold corresponds to the third SSB group
  • the third threshold corresponds to the fourth SSB group
  • the second threshold is different from the third threshold.
  • the random access mode corresponding to the third SSB group is that, when the reference signal receiving power is greater than or equal to the second threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, and receives power at the reference signal. If the threshold is smaller than the second threshold, the terminal device sends a random access signal to the network device on the second uplink carrier.
  • the random access mode corresponding to the fourth SSB group is that, when the reference signal receiving power is greater than or equal to the third threshold, the terminal device sends a random access signal to the network device on the first uplink carrier, and the reference signal receiving power is used. If the third threshold is less than the third threshold, the terminal device sends a random access signal to the network device on the second uplink carrier.
  • the first indication information indicates that the at least one SSB group can display the indicated method or the implicit indication method.
  • the first indication information may directly indicate an SSB number included in each SSB group or indicate a SSB included in each SSB group in a bitmap format.
  • the first indication information indicates the first SSB group. Specifically, the first indication information directly indicates the number or index of the SSB included in the first SSB group, such as the SSB numbered 0 and the SSB numbered 1. It should be understood that the foregoing SSB number is only an example and is not limited to the embodiment of the present application.
  • the first indication information indicates the first SSB group and the second SSB group.
  • the first indication information directly indicates the number or index of the SSB included in the first SSB group, and indirectly indicates the number of the SSB included in the second SSB group.
  • the index specifically, in the case that the total number of SSBs is 4, the first indication information directly indicates that the first SSB includes the SSB numbered 0 and the SSB numbered 1.
  • the second SSB includes an SSB numbered 2 and an SSB numbered 3. It should be understood that the total number of SSBs and the SSB number are only examples, and are not limited to the embodiments of the present application.
  • the first indication information indicates the first SSB group, the second SSB group, and the third SSB group.
  • the first indication information directly indicates the number or index of the SSB included in the first SSB group and the second SSB group includes The SSB number or index indirectly indicates the number or index of the SSB included in the third SSB group.
  • the first indication information directly indicates that the first SSB includes the SSB and number numbered 0.
  • the SSB of 1 includes the SSB numbered 2. It should be understood at this point that the first indication information indirectly indicates that the third SSB includes the SSB numbered 3. It should be understood that the total number of SSBs and the SSB number are only examples, and are not limited to the embodiments of the present application.
  • the first indication information indicates the first SSB group.
  • the ith bit is used to indicate whether the first SSB group includes the SSB numbered i.
  • the ith bit takes a value of 1 to indicate the first SSB group. Including the SSB numbered i, the value of the ith bit is 0, indicating that the first SSB group does not include the SSB numbered i.
  • the first indication information includes 4 bits, and when the first indication information is 1100, the first indication information indicates that the first SSB group includes the SSB numbered 0 and the number is 1.
  • SSB the total number of SSBs and the SSB number are only examples, and are not limited to the embodiments of the present application.
  • the first indication information indicates the first SSB group and the second SSB group.
  • the ith bit is used to indicate that the SSB numbered i is the first SSB group or the second SSB group, and optionally, the ith bit A value of 1 indicates that the SSB numbered i is the first SSB group, and the value of the ith bit is 0 indicates that the SSB numbered i is the second SSB group.
  • the first indication information includes 4 bits, and when the first indication information is 1100, the first indication information indicates that the first SSB group includes the SSB numbered 0 and the number is 1.
  • the SSB, the second SSB group includes the SSB numbered 2 and the SSB numbered 3. It should be understood that the total number of SSBs and the SSB number are only examples, and are not limited to the embodiments of the present application.
  • Step 310 The network device sends the first indication information to the terminal device.
  • the first indication information is sent by the network device to the multiple terminal devices.
  • the first indication information may be carried in the remaining minimum system information (RMSI), or other system information (OSI), and of course, in other information, not limited herein. .
  • RMSI remaining minimum system information
  • OSI system information
  • the first indication information carries the information of the at least one SSB group, and the random access mode corresponding to each SSB group is pre-determined in the protocol, or is notified to the terminal device by the network device by using other indication information.
  • the first indication information carries information about at least one SSB group, and information about a random access manner corresponding to each SSB group.
  • Step 320 The terminal device receives the first indication information from the network device, and the terminal device sends a random access signal to the network device according to the random access manner corresponding to the target SSB group.
  • the target SSB group is one of at least one SSB group.
  • the terminal device first determines the target SSB, further determines the SSB group to which the target SSB belongs, and uses the SSB group to which the target SSB belongs as the target SSB group.
  • a network device broadcasts multiple SSBs, which may correspond to different beams or may correspond to the same beam.
  • the terminal device searches for an SSB during downlink synchronization, and the terminal device may search for multiple SSBs.
  • the terminal device selects one SSB with the strongest received signal strength from multiple SSBs.
  • the target SSB resides on the target SSB, or the terminal device receives the reference signal received on the plurality of SSBs according to the relationship between the received power and the preset threshold, and receives one or more powers from the reference signal that are greater than the preset threshold. Select one of the SSBs as the target SSB.
  • the terminal device may also select the SSB with the lowest frequency from the two or more SSBs with the strongest received signal strength as the target SSB.
  • the terminal device may also select the SSB with the lowest frequency from the two or more SSBs with the strongest received signal strength as the target SSB.
  • other methods may also be employed.
  • the target SSB After the terminal device determines the target SSB, when the terminal device performs the uplink access, the random access resource corresponding to the target SSB is used for random access, so that the network device can determine the random access resource according to the random access resource.
  • the terminal device sends a random access signal, that is, the terminal, to the network device according to the first random access manner.
  • the device sends a random access signal to the network device on the first uplink carrier.
  • the terminal device sends a random access signal to the network device according to the second random access manner, that is, the terminal device according to the The size of the reference signal received power and the first threshold are selected, and one uplink carrier is selected from the plurality of uplink carriers to send a random access signal to the network device.
  • the terminal device may perform measurement on the downlink carrier of the TDD to obtain the reference signal received power.
  • the terminal device selects the first uplink carrier from the first uplink carrier and the second uplink carrier to the network.
  • the device sends a random access signal.
  • the terminal device selects the second uplink carrier from the first uplink carrier and the second uplink carrier to send a random access signal to the network device.
  • the terminal device sends the network message to the network device according to the third random access manner.
  • the random access signal that is, the terminal device selects one uplink carrier from the plurality of uplink carriers to send a random access signal to the network device according to the relationship between the received power of the reference signal and the second threshold.
  • the terminal device when the at least one SSB group indicated by the first indication information includes the fourth SSB group, the second indication information indicates the third threshold, and the target SSB group is the fourth SSB group, the terminal device according to the fourth random access manner
  • the network device sends a random access signal, that is, the terminal device sends a random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the relationship between the received power of the reference signal and the third threshold.
  • the terminal device may select the SSB group to which the target SSB belongs as the target SSB group according to the received first indication information, and send a random access signal to the network device according to the random access manner corresponding to the target SSB group.
  • the target SSBs determined by the terminal devices in different locations in the cell are different, and the target SSB groups determined by the respective terminal devices are not identical, and the network device configures a random access mode for each SSB group, corresponding to different SSB groups.
  • the random access mode is different, and the random access mode corresponding to each SSB is a random access mode suitable for the terminal device that selects the SSB group as the target SSB group.
  • the terminal devices in different locations in the cell can send random access signals to the network device by using different random access methods, and each terminal device in the prior art uses the same random access mode to send random access to the network device.
  • the access signal is more flexible.
  • the success rate of random access of the terminal device can be improved.
  • the terminal device when the target SSB does not belong to any one of the at least one SSB group, the terminal device sends a random access signal to the network device according to the fifth random access mode.
  • the first indication information indicates at least one SSB group, where at least one SSB group may cover all SSBs, or may only be a subset of all SSBs.
  • the first indication information indicates the first SSB group, and the first SSB group includes SSB0 to SSb3, and the random access mode corresponding to the first SSB group is the first random access mode.
  • the terminal device determines that the target SSB is the SSB2
  • the terminal device sends a random access signal to the network device according to the first random access mode;
  • the terminal device determines that the target SSB is the SSB4, the terminal device sends the random access mode to the network device according to the fifth random access mode. Random access signal.
  • the total number of SSBs and the SSB number are only examples, and are not limited to the embodiments of the present application.
  • the fifth random access mode here may be the same as the second random access mode.
  • the network device sends first indication information to the terminal device, where the first indication information indicates at least one first SSB.
  • the terminal device sends a random access signal to the network device according to the first random access mode when the target SSB is one of the at least one first SSB.
  • the terminal device When the target SSB is not any one of the at least one first SSB, the terminal device sends a random access signal to the network device according to the second random access mode, where the first random access mode and the second random access mode are used. different.
  • the random access mode corresponding to the at least one first SSB is the first random access mode
  • the random access mode corresponding to the SSB except the at least one first SSB is the second random access mode.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the first uplink carrier
  • the second random access mode is the size relationship between the received power of the reference device and the first threshold according to the reference signal, and the first uplink is used.
  • the first random access mode is a size relationship between the received power of the reference device and the first threshold according to the reference signal, and the first uplink carrier
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier.
  • UE1 and UE2 receive first indication information from the network device.
  • the at least one first SSB includes SSB0 to SSB2.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the uplink carrier of the TDD
  • the second random access mode is the size relationship between the RSRP and the RSRP threshold of the terminal device, and the uplink carrier and the SUL of the TDD.
  • a random access signal is sent to the network device by selecting one uplink carrier in the uplink carrier.
  • UE1 When determining that the target SSB is SSB1, UE1 sends a random access signal to the network device on the uplink carrier of the TDD.
  • UE2 When determining that the target SSB is SSB3, UE2 sends a random access signal to the network device on the uplink carrier of the TDD if the RSRP measured by the UE2 is greater than or equal to the RSRP threshold. If the RSRP measured by the UE1 is less than the RSRP threshold, the UE is in the SUL. A random access signal is sent to the network device on the uplink carrier.
  • the target SSBs determined by the terminal devices in different locations in the cell are different, and the target SSB determined by the terminal device is one of the at least one first SSB, and the random access signal is sent to the network device according to the first random access method, and the other part is
  • the target SSB determined by the terminal device is not any one of the at least one first SSB value, and the random access signal is sent to the network device according to the second random access method. Therefore, the terminal devices in different locations in the cell can send random access signals to the network device by using different random access methods, and each terminal device in the prior art uses the same random access mode to send random access to the network device.
  • the access signal is more flexible. In turn, the success rate of random access of the terminal device can be improved.
  • the network device sends first indication information to the terminal device, where the first indication information indicates at least one first SSB.
  • the network device sends second indication information to the terminal device, where the second indication information indicates at least one second SSB.
  • the terminal device sends a random access signal to the network device according to the first random access mode when the target SSB is one of the at least one first SSB.
  • the terminal device When the target SSB is one SSB of the at least one second SSB, the terminal device sends a random access signal to the network device according to the second random access mode, where the first random access mode is different from the second random access mode.
  • the terminal device sends a random access signal to the network device according to the third random access manner,
  • the third random access mode is different from the first random access mode and the second random access mode.
  • the random access mode corresponding to the at least one first SSB is the first random access mode
  • the random access mode corresponding to the at least one second SSB is the second random access mode, except for at least one first SSB and at least one
  • the random access mode corresponding to the SSB outside the second SSB is the third random access mode.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the first uplink carrier.
  • the second random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the first uplink carrier and the second uplink carrier according to the relationship between the received power of the reference signal and the first threshold, where the terminal device is Cell reselection is performed when random access fails.
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the first uplink carrier and the second uplink carrier according to the size relationship between the received power of the reference signal and the first threshold, where the terminal device is When the random access fails, an uplink carrier other than the first selected uplink carrier is selected from the first uplink carrier and the second uplink carrier to send a random access signal to the network device.
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier.
  • UE1, UE2, and UE3 receive first indication information and second indication information from the network device.
  • the at least one first SSB includes SSB0 to SSB1, and the at least one second SSB includes SSB2.
  • the first random access mode is that the terminal device sends a random access signal to the network device on the TDD carrier
  • the second random access mode is that the terminal device selects an uplink from the TDD carrier and the SUL carrier according to the relationship between the RSRP and the RSRP threshold.
  • a random access signal is sent to the network device on the carrier, and the terminal device performs cell reselection when the random access fails.
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the TDD carrier and the SUL carrier according to the size relationship between the RSRP and the RSRP threshold, and the terminal device fails from the random access when the random access fails.
  • An uplink carrier other than the first selected uplink carrier is selected from an uplink carrier and a second uplink carrier to send a random access signal to the network device.
  • UE1 When determining that the target SSB is SSB1, UE1 sends a random access signal to the network device on the TDD uplink carrier.
  • UE2 When determining that the target SSB is SSB2, UE2 sends a random access signal to the network device on the TDD carrier if the RSRP measured by the UE2 is greater than or equal to the RSRP threshold. If the RSRP measured by the UE2 is less than the RSRP threshold, the UE2 is on the SUL carrier. The network device sends a random access signal. When the UE1 random access fails, the UE1 performs cell reselection.
  • UE3 When determining that the target SSB is SSB3, UE3 sends a random access signal to the network device on the TDD carrier if the RSRP measured by the UE3 is greater than or equal to the RSRP threshold. When the UE3 fails to access the random access, the UE3 sends the network access device to the network device on the SUL carrier. Send a random access signal. If the RSRP measured by the UE3 is less than the RSRP threshold, the random access signal is sent to the network device on the SUL carrier. When the random access of the UE3 fails, the UE3 sends a random access signal to the network device on the TDD carrier.
  • the target SSBs determined by the terminal devices in different locations in the cell are different, and the target SSB determined by the terminal devices is one of the at least one first SSB, and the random access signal is sent to the network device according to the first random access method, and some of the terminals are
  • the target SSB determined by the device is one of the at least one second SSB, and the random access signal is sent to the network device according to the second random access method, and the target SSB determined by the terminal device is not any one of the at least one first SSB and Not for any one of the at least one second SSB, the random access signal is transmitted to the network device according to the third random access method.
  • the terminal devices in different locations in the cell can send random access signals to the network device by using different random access methods, and each terminal device in the prior art uses the same random access mode to send random access to the network device.
  • the access signal is more flexible.
  • the success rate of random access of the terminal device can be improved.
  • the network device sends first indication information to the terminal device, where the first indication information indicates the at least one first SSB and the at least one second SSB.
  • the network device sends the second indication information to the terminal device, where the second indication information indicates a first threshold corresponding to the at least one first SSB and a second threshold corresponding to the at least one second SSB.
  • the terminal device sends a random access signal to the network device according to the first random access mode when the target SSB is one of the at least one first SSB.
  • the terminal device When the target SSB is one SSB of the at least one second SSB, the terminal device sends a random access signal to the network device according to the second random access mode, where the first random access mode is different from the second random access mode.
  • the terminal device sends a random access signal to the network device according to the third random access manner,
  • the third random access mode is different from the first random access mode and the second random access mode.
  • the random access mode corresponding to the at least one first SSB is the first random access mode
  • the random access mode corresponding to the at least one second SSB is the second random access mode, except for at least one first SSB and at least one
  • the random access mode corresponding to the SSB outside the second SSB is the third random access mode.
  • the first random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the first uplink carrier and the second uplink carrier according to the size relationship between the reference signal received power and the first threshold
  • the second random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the first uplink carrier and the second uplink carrier according to the relationship between the received power of the reference signal and the second threshold, and the third random access mode is used. And selecting, by the terminal device, a random access signal from the first uplink carrier and the second uplink carrier to the network device according to the size relationship between the received power of the reference signal and the third threshold.
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier.
  • UE1, UE2, and UE3 receive first indication information and second indication information from the network device.
  • the at least one first SSB includes SSB0 to SSB1, and the at least one second SSB includes SSB2.
  • the first random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the TDD carrier and the SUL carrier according to the size relationship between the RSRP and the first threshold.
  • the second random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the TDD carrier and the SUL carrier according to the size relationship between the RSRP and the second threshold.
  • the third random access mode is that the terminal device sends a random access signal to the network device by selecting an uplink carrier from the TDD carrier and the SUL carrier according to the size relationship between the RSRP and the third threshold.
  • the value of the first threshold, the value of the second threshold, and the value of the third threshold are not equal to each other, but the values of the threshold are not limited herein, and may be equal or unequal. It should be understood that the above-mentioned UE number and SSB number are only examples, and are not limited to the embodiments of the present application.
  • UE1 When determining that the target SSB is SSB1, UE1 sends a random access signal to the network device on the TDD carrier if the RSRP measured by the UE1 is greater than or equal to the RSRP threshold 1. If the RSRP measured by the UE1 is less than the RSRP threshold 1, the SUL carrier is used. The random access signal is sent to the network device.
  • UE2 When determining that the target SSB is SSB2, UE2 sends a random access signal to the network device on the TDD carrier if the RSRP measured by the UE2 is greater than or equal to the RSRP threshold 2. If the RSRP measured by the UE2 is less than the RSRP threshold 2, the SUL carrier is used. The random access signal is sent to the network device.
  • UE3 When determining that the target SSB is SSB3, UE3 sends a random access signal to the network device on the TDD carrier if the RSRP measured by the UE3 is greater than or equal to the RSRP threshold 3. If the RSRP measured by the UE3 is less than the RSRP threshold 3, the SUL carrier is used. The random access signal is sent to the network device.
  • the target SSBs determined by the terminal devices in different locations in the cell are different, and the target SSB determined by the terminal devices is one of the at least one first SSB, and the random access signal is sent to the network device according to the first random access method, and some of the terminals are
  • the target SSB determined by the device is one of the at least one second SSB, and the random access signal is sent to the network device according to the second random access method, and the target SSB determined by the terminal device is not any one of the at least one first SSB and
  • a random access signal is sent to the network device according to the third random access method, where the thresholds corresponding to different random access modes are different, and the terminal devices in different locations in the cell can adopt the phase
  • the adapted RSRP threshold is used for uplink carrier selection, thereby improving the success rate of random access of the terminal device.
  • the embodiment of the present application provides a random access device. As shown in FIG. 4, the device includes:
  • the receiving unit 401 is configured to receive, by the network device, first indication information, where the first indication information indicates at least one SSB group, where each of the at least one SSB group includes at least one SSB, and each The SSB group corresponds to a random access method;
  • the sending unit 402 is configured to send a random access signal to the network device according to a random access manner corresponding to the target SSB group; the target SSB group is one of the at least one SSB group.
  • it also includes:
  • a processing unit 403, configured to determine a target SSB
  • Determining that the SSB group to which the target SSB belongs is a target SSB group.
  • the at least one SSB group includes a first SSB group, and the first SSB group corresponds to a first random access mode
  • the first random access mode is to send the random access signal to the network device on a first uplink carrier; the first uplink carrier is one of multiple uplink carriers.
  • the at least one SSB group further includes a second SSB group, and the second SSB group corresponds to a second random access mode
  • the second random access mode is configured to send the random access signal to the network device by selecting one uplink carrier from the multiple uplink carriers according to a size relationship between a reference signal received power and a first threshold.
  • the at least one SSB group further includes a third SSB group and a fourth SSB group; the third SSB group corresponds to a third random access mode, and the fourth SSB group corresponds to a fourth random group Access method
  • the receiving unit 401 is further configured to receive second indication information from the network device, where the second indication information indicates a second threshold and a third threshold;
  • the second threshold corresponds to the third SSB group
  • the third threshold corresponds to the fourth SSB group
  • the second threshold is different from the third threshold
  • the third random access The method is: according to the relationship between the received power of the reference signal and the second threshold, selecting one uplink carrier from the multiple uplink carriers to send the random access signal to the network device;
  • the fourth random access mode is And determining a size relationship between the reference signal received power and the third threshold, and selecting one uplink carrier from the multiple uplink carriers to send the random access signal to the network device.
  • it also includes:
  • the sending unit 402 is further configured to: when the target SSB does not belong to any one of the at least one SSB group, send the random access to the network device according to a fifth random access manner. signal.
  • the multiple uplink carriers include at least the first uplink carrier and the second uplink carrier;
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier, and/or the first uplink carrier is a time division duplex TDD carrier, and the second uplink carrier is an increased uplink SUL carrier.
  • the embodiment of the present application provides a random access device. As shown in FIG. 5, the device includes:
  • the processing unit 501 is configured to determine first indication information, where the first indication information indicates at least one SSB group, where each SSB group in the at least one SSB group includes at least one SSB, and each SSB group corresponds to one Random access method;
  • the sending unit 502 is configured to send the first indication information to the terminal device.
  • the at least one SSB group includes a first SSB group, and the first SSB group corresponds to a first random access mode
  • the first random access mode is that the terminal device sends the random access signal to the network device on a first uplink carrier; the first uplink carrier is one of multiple uplink carriers.
  • the at least one SSB group further includes a second SSB group, and the second SSB group corresponds to a second random access mode
  • the second random access mode is that the terminal device sends the random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to a relationship between a received power of the reference signal and a first threshold. .
  • the at least one SSB group further includes a third SSB group and a fourth SSB group; the third SSB group corresponds to a third random access mode, and the fourth SSB group corresponds to a fourth random group Access method
  • the sending unit 502 is further configured to:
  • the second threshold corresponds to the third SSB group
  • the third threshold corresponds to the fourth SSB group
  • the second threshold is different from the third threshold
  • the third random access The method is that the terminal device sends the random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the size relationship between the received power of the reference signal and the second threshold
  • the fourth random connection The inbound mode is that the terminal device sends the random access signal to the network device by selecting one uplink carrier from the plurality of uplink carriers according to the magnitude relationship between the received power of the reference signal and the third threshold.
  • the multiple uplink carriers include at least the first uplink carrier and the second uplink carrier;
  • the frequency of the first uplink carrier is higher than the frequency of the second uplink carrier, and/or the first uplink carrier is a TDD carrier, and the second uplink carrier is a SUL carrier.
  • each unit above is only a division of logical functions, and the actual implementation may be integrated into one physical entity in whole or in part, or may be physically separated. Moreover, these units may all be implemented in the form of software by means of processing component calls; or may be implemented entirely in hardware; some units may be implemented in software in the form of processing component calls, and some units may be implemented in hardware. In the implementation process, each step of the above method or each of the above units may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.
  • the above units may be one or more integrated circuits configured to implement the above methods, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (digital) Signal processor, DSP), or one or more Field Programmable Gate Arrays (FPGAs).
  • ASICs Application Specific Integrated Circuits
  • DSP digital signal processor
  • FPGAs Field Programmable Gate Arrays
  • the processing element can be a general purpose processor, such as a central processing unit (CPU) or other processor that can invoke the program.
  • CPU central processing unit
  • these units can be integrated and implemented in the form of a system-on-a-chip (SOC).
  • SOC system-on-a-chip
  • the embodiment of the present application further provides a terminal device, which is used to implement the method shown in FIG. 3.
  • the terminal device 600 includes: a transceiver 601, a processor 602, Memory 603.
  • the memory 603 is used to store a computer program; the processor 602 calls a computer program stored in the memory 603, and the method shown in FIG. 3 is executed by the transceiver 601.
  • the random access device in the foregoing embodiment shown in FIG. 4 can be implemented by the terminal device 600 shown in FIG. 6.
  • the structure of the terminal device 600 does not constitute a limitation on the embodiments of the present application.
  • the embodiment of the present application further provides a network device, where the method shown in FIG. 3 is implemented.
  • the network device 700 includes: a transceiver 701, a processor 702, Memory 703.
  • the memory 703 is used to store a computer program; the processor 702 calls a computer program stored in the memory 703, and the method shown in FIG. 3 is executed by the transceiver 701.
  • the random access device in the foregoing embodiment shown in FIG. 5 can be implemented by the network device 700 shown in FIG. 7.
  • the structure of the network device 700 does not constitute a limitation on the embodiments of the present application.
  • the processor can be a CPU, a network processor (NP), a hardware chip, or any combination thereof.
  • the memory may include a volatile memory such as a random access memory (RAM); the memory may also include a non-volatile memory such as a read-only memory. , ROM), flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.
  • the terminal device may, according to the received first indication information, the first indication information indicating at least one SSB group, and the terminal device sends a random access signal to the network device according to the random access manner corresponding to the target SSB group.
  • the target SSB groups determined by the terminal devices in different locations in the cell are different, and the network device configures a random access mode for each SSB group, and different random access modes are different for different SSB groups. Therefore, the cells are in different locations.
  • the terminal device can send a random access signal to the network device by using different random access methods. Compared with the prior art, each terminal device uses the same random access mode to send a random access signal to the network device, which is more flexible. In turn, the success rate of random access of the terminal device can be improved.
  • embodiments of the present application can be provided as a method, system, or computer program product. Therefore, the embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware. Moreover, embodiments of the present application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) including computer usable program code.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本申请公开了一种随机接入方法及装置，该方法包括：第一节点接收第二节点发送的第一信息，第一信息用于确定第一发送功率，所述第一发送功率为第一节点通过第一链路向第二节点发送下行信息时采用的功率；第一链路为第一节点与第二节点之间的链路，第一节点为第二节点的上级设备；第一节点根据第一信息确定第一发送功率。因此，第一节点根据第一信息确定第一发送功率，在通过第一链路向第二节点发送下行信息时采用该第一发送功率，能够减轻第二节点接收到的各个信号之间的干扰。

Description

一种随机接入方法及装置
本申请中要求在2018年01月31日提交中国专利局、申请号为201810093785.X、申请名称为“一种随机接入方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及无线通信技术领域，特别涉及一种随机接入方法及装置。
背景技术
在无线通信系统的发展演进过程中，在6GHz以下的频带上可以同时部署5G新空口(New radio interface，NR)系统和长期演进(Long term evolution，LTE)系统。目前，NR最有可能先部署在3.5GHz的频率上，但是考虑到在该频率上系统的上行覆盖无法匹配下行覆盖，使得系统的上行速率受限。为此，NR系统还在其他上行频带部署上行载波。具体的，NR系统的上行载波可以部署在LTE系统的1.8GHz频率的上行频带上，以增强NR系统的上行覆盖，这使得在LTE的上行频带上将同时存在LTE系统和NR系统，即NR系统和LTE系统共享一个上行频带。当然，NR系统的上行载波也可以部署在一个专用的上行频带上，该上行频带不与LTE系统或者其他系统共享。因此，除部署在3.5GHz的频率上的上行载波，NR系统还在其他上行频带部署的上行载波可被称为增加的上行(supplementary uplink，SUL)载波。
目前，当终端设备被配置了3.5GHz的上行载波和1.8GHz的上行载波(为SUL载波)时，终端设备会根据在3.5GHz的下行载波上测得的参考信号接收功率(Reference signal received power，RSRP)与RSRP阈值(记为RSRP-th)进行比较，该RSRP-th为网络设备给小区内所有终端设备广播的一个参数。当RSRP>＝RSRP-th时，该终端设备选择3.5GHz的上行载波进行随机接入；当RSRP<RSRP-th时，该终端设备选择1.8GHz的上行载波进行随机接入。
但是，基于现有的RSRP与RSRP-th的比较结果选择随机接入的上行载波的方案，无法保证终端设备选择的上行载波为合适的上行载波。具体的，考虑到网络设备在3.5GHz的天线配置和在1.8GHz的天线配置可能不同，例如，3.5GHz的波束比1.8GHz的波束更窄，并且3.5GHz的天线方向与1.8GHz的天线方向也可能不同，如图1所示，这使得在实际网络中，并不能保证网络设备的覆盖范围内1.8GHz的上行覆盖性能总是好于3.5GHz的上行覆盖性能，小区内可能会出现一些区域3.5GHz的上行覆盖性能好于1.8GHz的上行覆盖性能，此时，若位于该区域内的终端设备确定RSRP<RSRP-th，选择1.8GHz的上行载波进行随机接入，则可能导致随机接入失败。因此，有必要针对3.5GHz的上行载波和SUL载波组合的场景，设计更为适用的随机接入方法以保证上行接入的性能。
发明内容
本申请实施例提供一种随机接入方法及装置，使得终端设备选择更为合适的上行载波。
第一方面，一种随机接入方法，该方法包括：
终端设备从网络设备接收的第一指示信息，第一指示信息指示至少一个SSB组，其中，至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；终端设备根据目标SSB组对应的随机接入方式，向网络设备发送随机接入信号；目标SSB组为至少一个SSB组中的一个。
因此，终端设备从网络设备接收第一指示信息，第一指示信息指示至少一个SSB组，根据目标SSB组对应的随机接入方式向网络设备发送随机接入信号。由于小区中处于不同位置的终端设备确定的目标SSB组可以不同，因此，小区中处于不同位置的终端设备能够采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接入方式向网络设备发送随机接入信号更加灵活。进而可以提升终端设备随机接入的成功率。
在一种可能的设计中，还包括：终端设备确定目标SSB；终端设备确定目标SSB所属的SSB组为目标SSB组。
本申请实施例中不限定确定目标SSB的方法，本申请实施例中目标SSB用于使终端设备确定采用的随机接入方式。
在一种可能的设计中，至少一个SSB组包括第一SSB组，第一SSB组对应第一随机接入方式。第一随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号。第一上行载波为多个上行载波中的一个。
因此，当第一指示信息指示的至少一个SSB组包括第一SSB组，且目标SSB组为第一SSB组时，终端设备根据第一随机接入方式向网络设备发送随机接入信号，即终端设备在第一上行载波上向网络设备发送随机接入信号。
在一种可能的设计中，至少一个SSB组还包括第二SSB组，第二SSB组对应第二随机接入方式；第二随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
当第一指示信息指示的至少一个SSB组包括第二SSB组，且目标SSB组为第二SSB组时，终端设备根据第二随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第一阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
在一种可能的设计中，第二随机接入方式还指示终端设备在随机接入失败时进行小区重选，或者在随机接入失败时，从多个上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。
因此，第二随机接入方式还可进一步配置终端设备在随机接入失败后的行为。
在一种可能的设计中，至少一个SSB组还包括第三SSB组和第四SSB组；第三SSB组对应第三随机接入方式，第四SSB组对应第四随机接入方式；方法还包括：终端设备从网络设备接收第二指示信息，第二指示信息指示第二阈值和第三阈值；其中，第二阈值与第三SSB组对应，第三阈值与第四SSB组对应，第二阈值与第三阈值不同；第三随机接入方式为终端设备根据参考信号接收功率与第二阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号；第四随机接入方式为终端设备根据参考信号接收功率与第三阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
因此，当第一指示信息指示的至少一个SSB组包括第三SSB组，第二指示信息指示 第二阈值，且目标SSB组为第三SSB组时，终端设备根据第三随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第二阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。同理，当第一指示信息指示的至少一个SSB组包括第四SSB组，第二指示信息指示第三阈值，且目标SSB组为第四SSB组时，终端设备根据第四随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第三阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
因此，相较于现有技术中网络设备仅配置一个RSRP阈值，本申请实施例中为不同SSB组配置不同的RSRP阈值，能够让小区中处于不同位置的终端设备采用更优选的RSRP阈值进行上行载波选择，从而提升终端设备随机接入的成功率。
在一种可能的设计中，还包括：
终端设备在目标SSB不属于至少一个SSB组中的任意一个SSB组时，根据第五随机接入方式，向网络设备发送随机接入信号。
因此，通过上述设计，不论目标SSB是否属于至少一个SSB组中的任意一个SSB组，都可以保证终端设备采用合适的随机接入方式向网络设备发送随机接入信号。
在一种可能的设计中，多个上行载波至少包括第一上行载波和第二上行载波；
第一上行载波的频率高于第二上行载波的频率，和/或第一上行载波为TDD载波，第二上行载波为SUL载波。
第二方面，一种随机接入方法，该方法包括：
网络设备确定第一指示信息，第一指示信息指示至少一个SSB组，其中，至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；网络设备向终端设备发送第一指示信息。
因此，网络设备向终端设备发送第一指示信息，能够使小区中处于不同位置的终端设备采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接入方式向网络设备发送随机接入信号更加灵活，进而可以提升终端设备随机接入的成功率。
在一种可能的设计中，至少一个SSB组包括第一SSB组，第一SSB组对应第一随机接入方式；第一随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号；第一上行载波为多个上行载波中的一个。
在一种可能的设计中，至少一个SSB组还包括第二SSB组，第二SSB组对应第二随机接入方式；第二随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
在一种可能的设计中，至少一个SSB组还包括第三SSB组和第四SSB组；第三SSB组对应第三随机接入方式，第四SSB组对应第四随机接入方式；方法还包括：网络设备向终端设备发送第二指示信息，第二指示信息指示第二阈值和第三阈值；其中，第二阈值与第三SSB组对应，第三阈值与第四SSB组对应，第二阈值与第三阈值不同；第三随机接入方式为终端设备根据参考信号接收功率与第二阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号；第四随机接入方式为终端设备根据参考信号接收功率与第三阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
在一种可能的设计中，多个上行载波至少包括第一上行载波和第二上行载波；
第一上行载波的频率高于第二上行载波的频率，和/或第一上行载波为TDD载波，第二上行载波为SUL载波。
第三方面，一种信息接收方法，该方法包括：终端设备从网络设备接收第一指示信息，所述第一指示信息指示至少一个第一同步信号/广播信道块SSB；所述终端设备在目标SSB为所述第一SSB的情况下，所述终端设备采用第一方式进行随机接入。
在一种可能的设计中，所述方法还包括：在所述目标SSB不为所述第一SSB的情况下，所述终端设备采用第二方式进行随机接入，其中，所述第一方式与所述第二方式不同。
在一种可能的设计中，所述方法还包括：所述终端设备从所述网络设备接收第二指示信息，所述第二指示信息指示至少一个第二SSB；在所述目标SSB为所述第二SSB的情况下，所述终端设备采用第二方式进行随机接入，其中，所述第一方式与所述第二方式不同。
在一种可能的设计中，所述方法还包括：在所述目标SSB不为所述第一SSB且不为所述第二SSB的情况下，所述终端设备采用第三方式进行随机接入，其中，所述第三方式与所述第一方式和所述第二方式都不同。
在一种可能的设计中，所述第一方式为所述终端设备在第一上行载波上向所述网络设备发送随机接入信号，所述第二方式为所述终端设备从所述第一上行载波和第二上行载波中选择一个上行载波上向所述网络设备发送所述随机接入信号；或者，所述第一方式为所述终端设备从所述第一上行载波和所述第二上行载波中选择一个上行载波上向所述网络设备发送所述随机接入信号，所述第二方式为所述终端设备在所述第一上行载波上向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述第一上行载波的频率高于所述第二上行载波的频率。
第四方面，一种信息发送方法，该方法包括：网络设备确定第一指示信息，所述第一指示信息指示至少一个第一同步信号/广播信道块SSB，网络设备向所述终端设备发送所述第一指示信息，以使终端设备在目标SSB为所述第一SSB的情况下，采用第一方式进行随机接入。
在一种可能的设计中，所述方法还包括：网络设备向所述终端设备发送第二指示信息，所述第二指示信息指示至少一个第二SSB；以使终端设备在目标SSB为所述第二SSB的情况下，采用第二方式进行随机接入。其中，所述第一方式与所述第二方式不同。
在一种可能的设计中，所述第一方式为所述终端设备在第一上行载波上向所述网络设备发送随机接入信号，所述第二方式为所述终端设备从所述第一上行载波和第二上行载波中选择一个上行载波上向所述网络设备发送所述随机接入信号；或者，所述第一方式为所述终端设备从所述第一上行载波和所述第二上行载波中选择一个上行载波上向所述网络设备发送所述随机接入信号，所述第二方式为所述终端设备在所述第一上行载波上向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述第一上行载波的频率高于所述第二上行载波的频率。
第五方面，本申请提供一种终端设备，所述终端设备包括收发器、处理器和存储器：所述存储器用于存储计算机程序；
所述处理器调用所述存储器存储的计算机程序，通过所述收发器执行如第一方面或第一方面中任一种可能的设计的方法。具体执行步骤可以参见第一方面，此处不在赘述。
或者，所述处理器调用所述存储器存储的计算机程序，通过所述收发器执行如第三方面或第三方面中任一种可能的设计的方法。具体执行步骤可以参见第三方面，此处不在赘述。
第六方面，本申请提供一种网络设备，该网络设备包括：收发器、处理器和存储器：所述存储器用于存储计算机程序；
所述处理器调用所述存储器存储的计算机程序，通过所述收发器执行第二方面或第二方面中任一种可能的设计的方法。具体执行步骤可以参见第二方面，此处不在赘述。
或者，所述处理器调用所述存储器存储的计算机程序，通过所述收发器执行如第四方面或第四方面中任一种可能的设计的方法。具体执行步骤可以参见第四方面，此处不在赘述。
第七方面，本申请提供一种随机接入装置，执行第一方面或第一方面任意一种可能的设计中的方法。具体地，该装置包括用于执行第一方面或第一方面的任意一种可能的设计中的方法的单元。或者，执行第三方面或第三方面任意一种可能的设计中的方法。具体地，该装置包括用于执行第三方面或第三方面的任意一种可能的设计中的方法的单元。
第八方面，本申请提供一种随机接入装置，执行第二方面或第二方面任意一种可能的设计中的方法。具体地，该装置包括用于执行第二方面或第二方面的任意一种可能的设计中的方法的单元。或者，执行第四方面或第四方面任意一种可能的设计中的方法。具体地，该装置包括用于执行第四方面或第四方面的任意一种可能的设计中的方法的单元。
第九方面，本申请还提供一种计算机可读存储介质，该计算机可读存储介质存储有计算机程序，当该计算机程序在计算机上运行时，使得计算机执行上述各方面所述的方法。
第十方面，本申请还提供一种包含程序的计算机程序产品，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为本申请实施例中3.5GHz的天线配置与1.8GHz的天线配置示意图；
图2为本申请实施例中应用场景的示意图；
图3为本申请实施例中随机接入方法的概述流程图；
图4为本申请实施例中随机接入装置的结构示意图之一；
图5为本申请实施例中随机接入装置的结构示意图之二；
图6为本申请实施例中终端设备的结构示意图；
图7为本申请实施例中网络设备的结构示意图。
具体实施方式
下面结合附图，对本申请的实施例进行描述。
本申请实施例中涉及的网络设备是终端设备通过无线方式接入到移动通信系统中的接入设备，可以是基站(NodeB)、演进型基站(eNodeB)、5G移动通信系统中的基站、下一代移动通信基站(next generation Node B，gNB)，未来移动通信系统中的基站或Wi-Fi系统中的接入节点等，本申请实施例对网络设备所采用的具体技术和具体设备形态不做限定。
本申请实施例中涉及的终端设备(Terminal equipment)也可以称为终端、用户设备(user  equipment，UE)、移动台(mobile station，MS)、移动终端(mobile terminal，MT)等。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、远程手术(remote medical surgery)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端、智慧家庭(smart home)中的无线终端等。
需要说明的是，在5G中的新空口技术中定义了同步信号/广播信道块(SS/PBCH block，SSB)，一个SSB包含了主同步信号(Primary Synchronization Signal，PSS)，辅同步信号(Secondary Synchronization Signal，SSS)和物理广播信道(Physical Broadcast Channel，PBCH)。在时间域上，一个SSB占用了连续的4个正交频分复用(Orthogonal frequency division multiplexing，OFDM)符号。在频率域上，一个SSB占用了连续的240个子载波，且这240个子载波是从0到239进行编号的。在基于OFDM的通信系统中，通常1个频域资源块(以下简称资源块)包括12个连续的子载波，这12个子载波是从0到11进行编号的，因此，一个SSB占用的240个子载波也可以称为20个资源块，且这20个资源块是从0到19进行编号的。
本申请实施例可应用于存在多个上行载波的场景，需要说明的是，本申请实施例中所指的多个上行载波可以包括至少两个上行载波。在一种可能的设计中，多个上行载波包括第一上行载波和第二上行载波，其中，第一上行载波的频率高于第二上行载波，例如，第一上行载波为3.5GHz频段的载波，第二上行载波为1.8GHz频段的载波。在一种的可能的设计中，多个上行载波包括第一上行载波和第二上行载波，其中，第一上行载波为TDD载波，第二上行载波为SUL载波。在一种可能的设计中，多个上行载波包括第一上行载波和第二上行载波，其中第一上行载波为TDD载波，第二上行载波为SUL载波，且第一上行载波的频率高于第二上行载波的频率。
参阅图2所示，为本申请实施例的一种可能应用场景的示意图，其中，网络设备配置两个上行载波，这两个上行载波均用于终端设备向该网络设备发送上行信号。具体的，该网络设备可以是NR的网络设备，其中一个上行载波为NR UL载波,该上行载波为TDD上行载波，另一个上行载波为NR SUL载波。
参阅图3所示，本申请实施例提供一种随机接入方法，实现终端设备选择合适的上行载波进行随机接入，保证终端设备随机接入的成功率，该方法包括：
步骤300：网络设备确定第一指示信息。
其中，第一指示信息指示至少一个SSB组，其中，至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式。
本申请实施例中SSB组仅为说明对应同一个随机接入方式的SSB的数目可以大于等于1，并不构成对本申请实施例的限定，也就是说SSB组仅用于指代一个或多个SSB，并不限定SSB组的概念。
可选的，任意两个SSB组中不存在相同的SSB。
下面对本申请实施例中涉及的至少一个SSB组以及每个SSB组对应的随机接入方式进行详细介绍。具体的，至少一个SSB组可以包括但不限于以下SSB组中的至少一个：
A：第一SSB组，第一SSB组对应第一随机接入方式。
第一随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号。第一上行载波为多个上行载波中的一个。应理解，该多个上行载波为终端设备能够用来发送随机接入信号的上行载波。
同理，至少一个SSB组还可包括第五SSB组，第五SSB组对应第六随机接入方式，第六随机接入方式为终端设备在第二上行载波上向网络设备发送随机接入信号。第二上行载波为多个上行载波中的一个。
B：第二SSB组，第二SSB组对应第二随机接入方式。
第二随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
具体的，第二随机接入方式可以是：在该参考信号接收功率大于等于该第一阈值的情况下，该终端设备在第一上行载波上向网络设备发送随机接入信号，在该参考信号接收功率小于该第一阈值的情况下，该终端设备在第二上行载波上向网络设备发送随机接入信号。
应理解的是，参考信号接收功率仅为举例，还可以为其他参数，如信号接收功率，本申请对此不作限定。这里的第一阈值可以是协议中预先定义的值，也可以是网络设备通知给终端设备的值，还可以是终端设备按照预设规则确定的值，也可以是终端设备根据统计经验确定的，本申请对此不作限定。
此外，第二随机接入方式还可进一步指示终端设备在随机接入失败时进行小区重选，或者终端设备在随机接入失败时，从多个上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。
可选的，第二随机接入方式还可以是：在该参考信号接收功率大于等于该第一阈值的情况下，该终端设备在第一上行载波上向网络设备发送随机接入信号，在该参考信号接收功率小于该第一阈值的情况下，该终端设备在的第二上行载波上向网络设备发送随机接入信号；若该终端设备随机接入失败，则该终端设备进行小区重选。
可选的，第二随机接入方式还可以是：在该参考信号接收功率大于等于该第一阈值的情况下，该终端设备在第一上行载波上向网络设备发送随机接入信号，在该参考信号接收功率小于该第一阈值的情况下，该终端设备在的第二上行载波上向网络设备发送随机接入信号；若该终端设备随机接入失败，则该终端设备从多个上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。
C：第三SSB组和第四SSB组，其中，第三SSB组对应第三随机接入方式，第四SSB组对应第四随机接入方式。
在一种可能的设计中，网络设备还向终端设备发送第二指示信息，第二指示信息指示第二阈值和第三阈值。其中，第二阈值与第三SSB组对应，第三阈值与第四SSB组对应，第二阈值与第三阈值不同。
第三随机接入方式为终端设备根据参考信号接收功率与第二阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
第四随机接入方式为终端设备根据参考信号接收功率与第三阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
应理解的是，第一指示信息和第二指示信息可以包括在一条信令中，也可以包括在两 条信令中。这里的第二阈值是针对第三SSB组配置的，第三阈值是针对第四SSB组配置的，第二阈值与第三阈值不同。因此，相较于现有技术中网络设备仅配置一个RSRP阈值，本申请实施例中为不同SSB组配置不同的RSRP阈值，能够让小区中处于不同位置的终端设备采用更优选的RSRP阈值进行上行载波选择，从而提升终端设备随机接入的成功率。
在一种可能的设计中，第一指示信息指示一个SSB组，该SSB组对应的随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号。
在一种可能的设计中，第一指示信息指示两个SSB组，其中，第一SSB组对应的随机接入方式为在第一上行载波上向网络设备发送随机接入信号。第二SSB组对应的随机接入方式为终端设备在参考信号接收功率大于等于该第一阈值的情况下，在第一上行载波上向网络设备发送随机接入信号，在参考信号接收功率小于该第一阈值的情况下，终端设备在的第二上行载波上向网络设备发送随机接入信号；若终端设备随机接入失败，则终端设备进行小区重选。或者，第二SSB组对应的随机接入方式为终端设备在参考信号接收功率大于等于该第一阈值的情况下，终端设备在第一上行载波上向网络设备发送随机接入信号，在参考信号接收功率小于该第一阈值的情况下，终端设备在的第二上行载波上向网络设备发送随机接入信号；若终端设备随机接入失败，则终端设备从多个上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。
在一种可能的设计中，第一指示信息指示两个SSB组，分别为第三SSB组和第四SSB组，第二指示信息指示第二阈值和第三阈值。其中，第二阈值与第三SSB组对应，第三阈值与第四SSB组对应，第二阈值与第三阈值不同。第三SSB组对应的随机接入方式为终端设备在参考信号接收功率大于等于该第二阈值的情况下，终端设备在第一上行载波上向网络设备发送随机接入信号，在参考信号接收功率小于该第二阈值的情况下，终端设备在的第二上行载波上向网络设备发送随机接入信号。第四SSB组对应的随机接入方式为终端设备在参考信号接收功率大于等于该第三阈值的情况下，终端设备在第一上行载波上向网络设备发送随机接入信号，在参考信号接收功率小于该第三阈值的情况下，终端设备在的第二上行载波上向网络设备发送随机接入信号。
应理解的是，以上可能的设计仅为举例，不作为本申请实例的限定。
此外，第一指示信息指示至少一个SSB组可以显示指示的方法或隐式指示的方法。具体的，第一指示信息可直接指示每个SSB组包括的SSB编号或者采用比特位图(bitmap)形式指示每个SSB组包括的SSB。
例如，第一指示信息指示第一SSB组，具体的，第一指示信息直接指示第一SSB组包括的SSB的编号或者索引，如编号为0的SSB和编号为1的SSB。应理解，上述SSB编号仅为举例，不作为本申请实施例的限定。
又例如，第一指示信息指示第一SSB组和第二SSB组，具体的，第一指示信息直接指示第一SSB组包括的SSB的编号或者索引，间接指示第二SSB组包括的SSB的编号或者索引，具体的，在SSB的总数为4的情况下，第一指示信息直接指示第一SSB包括编号为0的SSB和编号为1的SSB，此时应理解，第一指示信息间接的指示了第二SSB包括编号为2的SSB和编号为3的SSB。应理解，上述SSB的总数和SSB编号仅为举例，不作为本申请实施例的限定。
又例如，第一指示信息指示第一SSB组、第二SSB组和第三SSB组，具体的，第一指示信息直接指示第一SSB组包括的SSB的编号或者索引和第二SSB组包括的SSB的编 号或者索引，间接指示第三SSB组包括的SSB的编号或者索引，具体的，在SSB的总数为4的情况下，第一指示信息直接指示第一SSB包括编号为0的SSB和编号为1的SSB，第二SSB包括编号为2的SSB。此时应理解，第一指示信息间接的指示了第三SSB包括编号为3的SSB。应理解，上述SSB的总数和SSB编号仅为举例，不作为本申请实施例的限定。
又例如，第一指示信息指示第一SSB组，具体的，第i比特用于指示第一SSB组是否包括编号为i的SSB，可选的，第i比特取值为1表示第一SSB组包括编号为i的SSB，第i比特取值为0表示第一SSB组不包括编号为i的SSB。具体的，在SSB的总数为4的情况下，第一指示信息包括4比特，当第一指示信息为1100时，则第一指示信息指示第一SSB组包括编号为0的SSB和编号为1的SSB。应理解，上述SSB的总数和SSB编号仅为举例，不作为本申请实施例的限定。
又例如，第一指示信息指示第一SSB组和第二SSB组，具体的，第i比特用于指示编号为i的SSB为第一SSB组或第二SSB组，可选的，第i比特取值为1表示编号为i的SSB为第一SSB组，第i比特取值为0表示编号为i的SSB为第二SSB组。具体的，在SSB的总数为4的情况下，第一指示信息包括4比特，当第一指示信息为1100时，则第一指示信息指示第一SSB组包括编号为0的SSB和编号为1的SSB，第二SSB组包括编号为2的SSB和编号为3的SSB。应理解，上述SSB的总数和SSB编号仅为举例，不作为本申请实施例的限定。
须知，以上各个举例不作为本申请实例的限定。
步骤310：网络设备向终端设备发送第一指示信息。
可选的，该第一指示信息为网络设备发送给多个终端设备的。例如，该第一指示信息可以携带在剩余最小系统信息(Remaining minimum system information，RMSI)中，或者其他系统信息(Other system information，OSI)中，当然也可以在其他信息中，此处不做限定。
可选的，第一指示信息中携带了至少一个SSB组的信息，每个SSB组对应的随机接入方式已在协议中预先确定，或者通过其他指示信息由网络设备通知给终端设备。
可选的，第一指示信息中携带了至少一个SSB组的信息，以及每个SSB组对应的随机接入方式的信息。
步骤320：终端设备从网络设备接收第一指示信息，终端设备根据目标SSB组对应的随机接入方式，向网络设备发送随机接入信号。其中，目标SSB组为至少一个SSB组中的一个。
具体的，终端设备首先确定目标SSB，进一步判断目标SSB所属的SSB组，将目标SSB所属的SSB组作为目标SSB组。
在一个小区中，网络设备会广播多个SSB，这些SSB可以对应不同的波束，也可以对应相同的波束。对于小区中的一个终端设备，该终端设备在下行同步时搜索SSB，该终端设备可能会搜索到多个SSB，一般地，终端设备会从多个SSB中选择一个接收信号强度最强的SSB作为目标SSB，并驻留在该目标SSB上，或者终端设备根据在多个SSB上测量获得的参考信号接收功率与预设阈值的关系，从参考信号接收功率大于该预设阈值的一个或多个SSB中选择一个作为目标SSB。此处并不限定终端设备如何确定出目标SSB，例如，终端设备还可以从接收信号强度最强的两个或多个SSB中选择频率最低的SSB作为目标 SSB，当然还可以采用其他方法。
在终端设备确定了目标SSB后，在该终端设备进行上行接入时，会采用与该目标SSB相对应的随机接入资源进行随机接入，从而网络设备可以根据该随机接入资源确定出该终端设备所确定出的目标SSB。因此，目标SSB还可以理解为与终端设备采用的随机接入资源相对应的SSB。因此，本申请实施例中不限定目标SSB只能用于使终端设备确定采用的随机接入方式，目标SSB还可以有其他用途。
因此，当第一指示信息指示的至少一个SSB组包括第一SSB组，且目标SSB组为第一SSB组时，终端设备根据第一随机接入方式向网络设备发送随机接入信号，即终端设备在第一上行载波上向网络设备发送随机接入信号。
当第一指示信息指示的至少一个SSB组包括第二SSB组，且目标SSB组为第二SSB组时，终端设备根据第二随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第一阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。例如，终端设备可以在TDD的下行载波上进行测量获得参考信号接收功率，当参考信号接收功率大于等于第一阈值，终端设备从第一上行载波和第二上行载波中选择第一上行载波向网络设备发送随机接入信号，当参考信号接收功率小于第一阈值，终端设备从第一上行载波和第二上行载波中选择第二上行载波向网络设备发送随机接入信号。
当第一指示信息指示的至少一个SSB组包括第三SSB组，第二指示信息指示第二阈值，且目标SSB组为第三SSB组时，终端设备根据第三随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第二阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。同理，当第一指示信息指示的至少一个SSB组包括第四SSB组，第二指示信息指示第三阈值，且目标SSB组为第四SSB组时，终端设备根据第四随机接入方式向网络设备发送随机接入信号，即终端设备根据参考信号接收功率与第三阈值的大小关系，从多个上行载波中选择一个上行载波向网络设备发送随机接入信号。
因此，终端设备可以根据接收到的第一指示信息，选择目标SSB所属的SSB组作为目标SSB组，并根据目标SSB组对应的随机接入方式向网络设备发送随机接入信号。由于小区中处于不同位置的终端设备确定的目标SSB不同，因此各个终端设备确定的目标SSB组也不完全相同，且网络设备为每个SSB组配置一种随机接入方式，不同SSB组对应的随机接入方式不同，每个SSB对应的随机接入方式为选择该SSB组作为目标SSB组的终端设备适合采用的随机接入方式。因此，小区中处于不同位置的终端设备能够采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接入方式向网络设备发送随机接入信号更加灵活。进而可以提升终端设备随机接入的成功率。
此外，在一种可能的设计中，终端设备在目标SSB不属于至少一个SSB组中的任意一个SSB组时，根据第五随机接入方式，向网络设备发送随机接入信号。应理解的是，第一指示信息指示至少一个SSB组，这里的至少一个SSB组可以覆盖所有SSB，也可以仅为所有SSB的子集。
例如，在SSB的总数为4的情况下，第一指示信息指示第一SSB组，第一SSB组包括SSB0～SSb3，第一SSB组对应的随机接入方式为第一随机接入方式，当终端设备确定目 标SSB为SSB2时，终端设备根据第一随机接入方式向网络设备发送随机接入信号；当终端设备确定目标SSB为SSB4时，终端设备根据第五随机接入方式向网络设备发送随机接入信号。应理解，上述SSB的总数和SSB编号仅为举例，不作为本申请实施例的限定。
在一种可能的设计中，这里的第五随机接入方式可以与第二随机接入方式相同。
下面结合具体实施例对本申请实施例提供的随机接入方法进行说明。
网络设备向终端设备发送第一指示信息，第一指示信息指示至少一个第一SSB。
终端设备在目标SSB为至少一个第一SSB中的一个SSB时，根据第一随机接入方式向网络设备发送随机接入信号。
终端设备在目标SSB不为至少一个第一SSB中的任意一个SSB时，根据第二随机接入方式向网络设备发送随机接入信号，其中，第一随机接入方式与第二随机接入方式不同。
其中，至少一个第一SSB对应的随机接入方式为第一随机接入方式，除至少一个第一SSB外的SSB对应的随机接入方式为第二随机接入方式。第一随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号，第二随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号；或者，第一随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号，第二随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号。其中，第一上行载波的频率高于第二上行载波的频率。
例如，UE1和UE2从网络设备接收第一指示信息。其中，至少一个第一SSB包括SSB0～SSB2。第一随机接入方式为终端设备在TDD的上行载波上向网络设备发送随机接入信号，第二随机接入方式为终端设备根据RSRP与RSRP阈值的大小关系，从TDD的上行载波和SUL的上行载波中选择一个上行载波上向网络设备发送随机接入信号。
UE1在确定目标SSB为SSB1时，在TDD的上行载波上向网络设备发送随机接入信号。
UE2在确定目标SSB为SSB3时，若UE2测得的RSRP大于等于RSRP阈值，则在TDD的上行载波上向网络设备发送随机接入信号，若UE1测得的RSRP小于RSRP阈值，则在SUL的上行载波上向网络设备发送随机接入信号。
因此，小区中处于不同位置的终端设备确定的目标SSB不同，一部分终端设备确定的目标SSB为至少一个第一SSB的一个，根据第一随机接入方法向网络设备发送随机接入信号，另一部分终端设备确定的目标SSB不为至少一个第一SSB值的任意一个，根据第二随机接入方法向网络设备发送随机接入信号。因此，小区中处于不同位置的终端设备能够采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接入方式向网络设备发送随机接入信号更加灵活。进而可以提升终端设备随机接入的成功率。
网络设备向终端设备发送第一指示信息，第一指示信息指示至少一个第一SSB。
网络设备向终端设备发送第二指示信息，第二指示信息指示至少一个第二SSB。
终端设备在目标SSB为至少一个第一SSB中的一个SSB时，根据第一随机接入方式向网络设备发送随机接入信号。
终端设备在目标SSB为至少一个第二SSB中的一个SSB时，根据第二随机接入方式向网络设备发送随机接入信号，其中，第一随机接入方式与第二随机接入方式不同。
终端设备在目标SSB不为至少一个第一SSB中的任意一个SSB且不为至少一个第二SSB中的任意一个SSB的情况下，根据第三随机接入方式向网络设备发送随机接入信号，其中，第三随机接入方式与第一随机接入方式和第二随机接入方式都不同。
其中，至少一个第一SSB对应的随机接入方式为第一随机接入方式，至少一个第二SSB对应的随机接入方式为第二随机接入方式，除至少一个第一SSB和至少一个第二SSB外的SSB对应的随机接入方式为第三随机接入方式。第一随机接入方式为终端设备在第一上行载波上向网络设备发送随机接入信号。第二随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号，终端设备在随机接入失败时进行小区重选。第三随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号，终端设备在随机接入失败时，从第一上行载波和第二上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。其中，第一上行载波的频率高于第二上行载波的频率。
例如，UE1、UE2和UE3从网络设备接收第一指示信息和第二指示信息。其中，至少一个第一SSB包括SSB0～SSB1，至少一个第二SSB包括SSB2。第一随机接入方式为终端设备在TDD载波上向网络设备发送随机接入信号，第二随机接入方式为终端设备根据RSRP与RSRP阈值的大小关系，从TDD载波和SUL载波中选择一个上行载波上向网络设备发送随机接入信号，终端设备在随机接入失败时进行小区重选。第三随机接入方式为终端设备根据RSRP与RSRP阈值的大小关系，从TDD载波和SUL载波中选择一个上行载波上向网络设备发送随机接入信号，终端设备在随机接入失败时，从第一上行载波和第二上行载波中选择一个除首次被选中的上行载波外的上行载波向网络设备发送随机接入信号。应理解，上述UE编号和SSB编号仅为举例，不作为本申请实施例的限定。
UE1在确定目标SSB为SSB1时，在TDD上行载波上向网络设备发送随机接入信号。
UE2在确定目标SSB为SSB2时，若UE2测得的RSRP大于等于RSRP阈值，则在TDD载波上向网络设备发送随机接入信号，若UE2测得的RSRP小于RSRP阈值，则在SUL载波上向网络设备发送随机接入信号。当UE1随机接入失败时，UE1进行小区重选。
UE3在确定目标SSB为SSB3时，若UE3测得的RSRP大于等于RSRP阈值，则在TDD载波上向网络设备发送随机接入信号，当UE3随机接入失败时，UE3在SUL载波上向网络设备发送随机接入信号。若UE3测得的RSRP小于RSRP阈值，则在SUL载波上向网络设备发送随机接入信号，当UE3随机接入失败时，UE3在TDD载波上向网络设备发送随机接入信号。
因此，小区中处于不同位置的终端设备确定的目标SSB不同，一部分终端设备确定的目标SSB为至少一个第一SSB的一个，根据第一随机接入方法向网络设备发送随机接入信号，一部分终端设备确定的目标SSB为至少一个第二SSB的一个，根据第二随机接入方法向网络设备发送随机接入信号，还有一部分终端设备确定的目标SSB不为至少一个第一SSB的任意一个且不为至少一个第二SSB的任意一个，根据第三随机接入方法向网络设备发送随机接入信号。因此，小区中处于不同位置的终端设备能够采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接 入方式向网络设备发送随机接入信号更加灵活。进而可以提升终端设备随机接入的成功率。
网络设备向终端设备发送第一指示信息，第一指示信息指示至少一个第一SSB和至少一个第二SSB。
网络设备向终端设备发送第二指示信息，第二指示信息指示至少一个第一SSB对应的第一阈值和至少一个第二SSB对应的第二阈值。
终端设备在目标SSB为至少一个第一SSB中的一个SSB时，根据第一随机接入方式向网络设备发送随机接入信号。
终端设备在目标SSB为至少一个第二SSB中的一个SSB时，根据第二随机接入方式向网络设备发送随机接入信号，其中，第一随机接入方式与第二随机接入方式不同。
终端设备在目标SSB不为至少一个第一SSB中的任意一个SSB且不为至少一个第二SSB中的任意一个SSB的情况下，根据第三随机接入方式向网络设备发送随机接入信号，其中，第三随机接入方式与第一随机接入方式和第二随机接入方式都不同。
其中，至少一个第一SSB对应的随机接入方式为第一随机接入方式，至少一个第二SSB对应的随机接入方式为第二随机接入方式，除至少一个第一SSB和至少一个第二SSB外的SSB对应的随机接入方式为第三随机接入方式。第一随机接入方式为终端设备根据参考信号接收功率与第一阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号，第二随机接入方式为终端设备根据参考信号接收功率与第二阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号，第三随机接入方式为终端设备根据参考信号接收功率与第三阈值的大小关系，从第一上行载波和第二上行载波中选择一个上行载波上向网络设备发送随机接入信号。其中，第一上行载波的频率高于第二上行载波的频率。
例如，UE1、UE2和UE3从网络设备接收第一指示信息和第二指示信息。其中，至少一个第一SSB包括SSB0～SSB1，至少一个第二SSB包括SSB2。第一随机接入方式为终端设备根据RSRP与第一阈值的大小关系，从TDD载波和SUL载波中选择一个上行载波上向网络设备发送随机接入信号。第二随机接入方式为终端设备根据RSRP与第二阈值的大小关系，从TDD载波和SUL载波中选择一个上行载波上向网络设备发送随机接入信号。第三随机接入方式为终端设备根据RSRP与第三阈值的大小关系，从TDD载波和SUL载波中选择一个上行载波上向网络设备发送随机接入信号。其中，第一阈值的取值、第二阈值的取值、第三阈值的取值互不相等，但是此处并不对阈值的取值进行限定，其可以相等或不相等。应理解，上述UE编号和SSB编号仅为举例，不作为本申请实施例的限定。
UE1在确定目标SSB为SSB1时，若UE1测得的RSRP大于等于RSRP阈值1，则在TDD载波上向网络设备发送随机接入信号，若UE1测得的RSRP小于RSRP阈值1，则在SUL载波上向网络设备发送随机接入信号。
UE2在确定目标SSB为SSB2时，若UE2测得的RSRP大于等于RSRP阈值2，则在TDD载波上向网络设备发送随机接入信号，若UE2测得的RSRP小于RSRP阈值2，则在SUL载波上向网络设备发送随机接入信号。
UE3在确定目标SSB为SSB3时，若UE3测得的RSRP大于等于RSRP阈值3，则在TDD载波上向网络设备发送随机接入信号，若UE3测得的RSRP小于RSRP阈值3，则在 SUL载波上向网络设备发送随机接入信号。
因此，小区中处于不同位置的终端设备确定的目标SSB不同，一部分终端设备确定的目标SSB为至少一个第一SSB的一个，根据第一随机接入方法向网络设备发送随机接入信号，一部分终端设备确定的目标SSB为至少一个第二SSB的一个，根据第二随机接入方法向网络设备发送随机接入信号，还有一部分终端设备确定的目标SSB不为至少一个第一SSB的任意一个且不为至少一个第二SSB的任意一个，根据第三随机接入方法向网络设备发送随机接入信号，其中，不同随机接入方式对应的阈值不同，小区中处于不同位置的终端设备能够采用相适应的RSRP阈值进行上行载波选择，从而提升终端设备随机接入的成功率。
基于以上实施例，本申请实施例提供一种随机接入装置，如图4所示，该装置包括：
接收单元401，用于从网络设备接收的第一指示信息，所述第一指示信息指示至少一个SSB组，其中，所述至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
发送单元402，用于根据目标SSB组对应的随机接入方式，向所述网络设备发送随机接入信号；所述目标SSB组为所述至少一个SSB组中的一个。
在一种可能的设计中，还包括：
处理单元403，用于确定目标SSB；
确定所述目标SSB所属的SSB组为目标SSB组。
在一种可能的设计中，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
所述第一随机接入方式为在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
在一种可能的设计中，所述至少一个SSB组还包括第二SSB组，所述第二SSB组对应第二随机接入方式；
所述第二随机接入方式为根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
所述接收单元401，还用于从所述网络设备接收第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为根据参考信号接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
在一种可能的设计中，还包括：
所述发送单元402，还用于：在所述目标SSB不属于所述至少一个SSB组中的任意一个SSB组时，根据第五随机接入方式，向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述多个上行载波至少包括所述第一上行载波和第二上行载 波；
所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为时分双工TDD载波，所述第二上行载波为增加的上行SUL载波。
可以理解的，关于图4的随机接入装置包括的功能块的具体实现方式及相应的有益效果，可参考前述图3所示实施例的具体介绍，这里不赘述。
基于以上实施例，本申请实施例提供一种随机接入装置，如图5所示，该装置包括：
处理单元501，用于确定第一指示信息，所述第一指示信息指示至少一个SSB组，其中，所述至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
发送单元502，用于向终端设备发送所述第一指示信息。
在一种可能的设计中，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
所述第一随机接入方式为所述终端设备在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
在一种可能的设计中，所述至少一个SSB组还包括第二SSB组，所述第二SSB组对应第二随机接入方式；
所述第二随机接入方式为所述终端设备根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
所述发送单元502，还用于：
向所述终端设备发送第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为所述终端设备根据参考信号接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为所述终端设备根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
在一种可能的设计中，所述多个上行载波至少包括所述第一上行载波和第二上行载波；
所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为TDD载波，所述第二上行载波为SUL载波。
可以理解的，关于图5的功率分配装置包括的功能块的具体实现方式及相应的有益效果，可参考前述图3所示实施例的具体介绍，这里不赘述。
应理解以上各个单元的划分仅仅是一种逻辑功能的划分，实际实现时可以全部或部分集成到一个物理实体上，也可以物理上分开。且这些单元可以全部以软件通过处理元件调用的形式实现；也可以全部以硬件的形式实现；还可以部分单元以软件通过处理元件调用的形式实现，部分单元以硬件的形式实现。在实现过程中，上述方法的各步骤或以上各个单元可以通过处理器元件中的硬件的集成逻辑电路或者软件形式的指令完成。
例如，以上这些单元可以是被配置成实施以上方法的一个或多个集成电路，例如：一 个或多个特定集成电路(Application Specific Integrated Circuit，ASIC)，或，一个或多个微处理器(digital signal processor，DSP)，或，一个或者多个现场可编程门阵列(Field Programmable Gate Array，FPGA)等。再如，当以上某个单元通过处理元件调度程序的形式实现时，该处理元件可以是通用处理器，例如中央处理器(Central Processing Unit，CPU)或其它可以调用程序的处理器。再如，这些单元可以集成在一起，以片上系统(system-on-a-chip，SOC)的形式实现。
基于以上实施例，本申请实施例还提供了一种终端设备，用于实现如图3所示的方法，参阅图6所示，所述终端设备600中包括：收发器601、处理器602、存储器603。其中，存储器603用于存储计算机程序；处理器602调用存储器603存储的计算机程序，通过收发器601执行上述如图3所示的方法。
可以理解的，上述图4所示实施例中的随机接入装置可以以图6所示的终端设备600实现。终端设备600的结构并不构成对本申请实施例的限定。
基于以上实施例，本申请实施例还提供了一种网络设备，用于实现如图3所示的方法，参阅图7所示，所述网络设备700中包括：收发器701、处理器702、存储器703。其中，存储器703用于存储计算机程序；处理器702调用存储器703存储的计算机程序，通过收发器701执行上述如图3所示的方法。
可以理解的，上述图5所示实施例中的随机接入装置可以以图7所示的网络设备700实现。网络设备700的结构并不构成对本申请实施例的限定。
在图6和图7中，处理器可以是CPU，网络处理器(network processor，NP)，硬件芯片或者其任意组合。存储器可以包括易失性存储器(volatile memory)，例如随机存取存储器(random access memory，RAM)；存储器也可以包括非易失性存储器(non-volatile memory)，例如只读存储器(read-only memory，ROM)，快闪存储器(flash memory)，硬盘(hard disk drive，HDD)或固态硬盘(solid-state drive，SSD)；存储器还可以包括上述种类的存储器的组合。
综上所述，终端设备可以根据接收到的第一指示信息，第一指示信息指示至少一个SSB组，终端设备根据目标SSB组对应的随机接入方式向网络设备发送随机接入信号。由于小区中处于不同位置的终端设备确定的目标SSB组不同，且网络设备为每个SSB组配置一种随机接入方式，不同SSB组对应的随机接入方式不同，因此，小区中处于不同位置的终端设备能够采用不同的随机接入方式向网络设备发送随机接入信号，相较于现有技术中各个终端设备均采用相同的随机接入方式向网络设备发送随机接入信号更加灵活。进而可以提升终端设备随机接入的成功率。
本领域内的技术人员应明白，本申请实施例可提供为方法、系统、或计算机程序产品。因此，本申请实施例可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且，本申请实施例可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM、光学存储器等)上实施的计算机程序产品的形式。
本申请实施例是参照根据本申请实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的 处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请实施例的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (24)

  1. 一种随机接入方法，其特征在于，该方法包括：
    终端设备从网络设备接收的第一指示信息，所述第一指示信息指示至少一个同步信号/广播信道块SSB组，其中，所述至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
    所述终端设备根据目标SSB组对应的随机接入方式，向所述网络设备发送随机接入信号；所述目标SSB组为所述至少一个SSB组中的一个。
  2. 如权利要求1所述的方法，其特征在于，还包括：
    所述终端设备确定目标SSB；
    所述终端设备确定所述目标SSB所属的SSB组为目标SSB组。
  3. 如权利要求1或2所述的方法，其特征在于，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
    所述第一随机接入方式为所述终端设备在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
  4. 如权利要求3所述的方法，其特征在于，所述至少一个SSB组还包括第二SSB组，所述第二SSB组对应第二随机接入方式；
    所述第二随机接入方式为所述终端设备根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  5. 如权利要求1-4任一项所述的方法，其特征在于，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
    所述方法还包括：
    所述终端设备从所述网络设备接收第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
    其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为所述终端设备根据参考信号接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为所述终端设备根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  6. 如权利要求2-5任一项所述的方法，其特征在于，还包括：
    所述终端设备在所述目标SSB不属于所述至少一个SSB组中的任意一个SSB组时，根据第五随机接入方式，向所述网络设备发送所述随机接入信号。
  7. 如权利要求4-6任一项所述的方法，其特征在于，所述多个上行载波至少包括所述第一上行载波和第二上行载波；
    所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为时分双工TDD载波，所述第二上行载波为增加的上行SUL载波。
  8. 一种随机接入方法，其特征在于，该方法包括：
    网络设备确定第一指示信息，所述第一指示信息指示至少一个SSB组，其中，所述至 少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
    所述网络设备向终端设备发送所述第一指示信息。
  9. 如权利要求8所述的方法，其特征在于，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
    所述第一随机接入方式为所述终端设备在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
  10. 如权利要求9所述的方法，其特征在于，所述至少一个SSB组还包括第二SSB组，所述第二SSB组对应第二随机接入方式；
    所述第二随机接入方式为所述终端设备根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  11. 如权利要求8-10任一项所述的方法，其特征在于，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
    所述方法还包括：
    所述网络设备向所述终端设备发送第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
    其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为所述终端设备根据参考信号接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为所述终端设备根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  12. 如权利要求9-11任一项所述的方法，其特征在于，所述多个上行载波至少包括所述第一上行载波和第二上行载波；
    所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为TDD载波，所述第二上行载波为SUL载波。
  13. 一种随机接入装置，其特征在于，该装置包括：
    接收单元，用于从网络设备接收的第一指示信息，所述第一指示信息指示至少一个同步信号/广播信道块SSB组，其中，所述至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
    发送单元，用于根据目标SSB组对应的随机接入方式，向所述网络设备发送随机接入信号；所述目标SSB组为所述至少一个SSB组中的一个。
  14. 如权利要求13所述的装置，其特征在于，还包括：
    处理单元，用于确定目标SSB；
    确定所述目标SSB所属的SSB组为目标SSB组。
  15. 如权利要求13或14所述的装置，其特征在于，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
    所述第一随机接入方式为在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
  16. 如权利要求15所述的装置，其特征在于，所述至少一个SSB组还包括第二SSB 组，所述第二SSB组对应第二随机接入方式；
    所述第二随机接入方式为根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  17. 如权利要求13-16任一项所述的装置，其特征在于，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
    所述接收单元，还用于从所述网络设备接收第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
    其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为根据参考信号接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  18. 如权利要求14-17任一项所述的装置，其特征在于，还包括：
    所述发送单元，还用于：在所述目标SSB不属于所述至少一个SSB组中的任意一个SSB组时，根据第五随机接入方式，向所述网络设备发送所述随机接入信号。
  19. 如权利要求15-18任一项所述的装置，其特征在于，所述多个上行载波至少包括所述第一上行载波和第二上行载波；
    所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为时分双工TDD载波，所述第二上行载波为增加的上行SUL载波。
  20. 一种随机接入装置，其特征在于，该装置包括：
    处理单元，用于确定第一指示信息，所述第一指示信息指示至少一个SSB组，其中，所述至少一个SSB组中的每个SSB组包括至少一个SSB，且每个SSB组对应一种随机接入方式；
    发送单元，用于向终端设备发送所述第一指示信息。
  21. 如权利要求20所述的装置，其特征在于，所述至少一个SSB组包括第一SSB组，所述第一SSB组对应第一随机接入方式；
    所述第一随机接入方式为所述终端设备在第一上行载波上向所述网络设备发送所述随机接入信号；所述第一上行载波为多个上行载波中的一个。
  22. 如权利要求21所述的装置，其特征在于，所述至少一个SSB组还包括第二SSB组，所述第二SSB组对应第二随机接入方式；
    所述第二随机接入方式为所述终端设备根据参考信号接收功率与第一阈值的大小关系，从所述多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  23. 如权利要求20-22任一项所述的装置，其特征在于，所述至少一个SSB组还包括第三SSB组和第四SSB组；所述第三SSB组对应第三随机接入方式，所述第四SSB组对应第四随机接入方式；
    所述发送单元，还用于：
    向所述终端设备发送第二指示信息，所述第二指示信息指示第二阈值和第三阈值；
    其中，所述第二阈值与所述第三SSB组对应，所述第三阈值与所述第四SSB组对应，所述第二阈值与所述第三阈值不同；所述第三随机接入方式为所述终端设备根据参考信号 接收功率与所述第二阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号；所述第四随机接入方式为所述终端设备根据参考信号接收功率与所述第三阈值的大小关系，从多个上行载波中选择一个上行载波向所述网络设备发送所述随机接入信号。
  24. 如权利要求21-23任一项所述的装置，其特征在于，所述多个上行载波至少包括所述第一上行载波和第二上行载波；
    所述第一上行载波的频率高于所述第二上行载波的频率，和/或所述第一上行载波为TDD载波，所述第二上行载波为SUL载波。
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