WO2018171449A1 - 一种寻呼方法及装置 - Google Patents

一种寻呼方法及装置 Download PDF

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Publication number
WO2018171449A1
WO2018171449A1 PCT/CN2018/078629 CN2018078629W WO2018171449A1 WO 2018171449 A1 WO2018171449 A1 WO 2018171449A1 CN 2018078629 W CN2018078629 W CN 2018078629W WO 2018171449 A1 WO2018171449 A1 WO 2018171449A1
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Prior art keywords
terminal
paging
random access
access preamble
group
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PCT/CN2018/078629
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English (en)
French (fr)
Inventor
张元�
梁靖
傅婧
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电信科学技术研究院有限公司
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Publication of WO2018171449A1 publication Critical patent/WO2018171449A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
    • H04W4/08—User group management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/008—Transmission of channel access control information with additional processing of random access related information at receiving side
    • 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 communications technologies, and in particular, to a paging method and apparatus.
  • 5G's new Radio Access Technology (RAT) (New RAT, NR for short) system supports high frequency operation, which requires the base station to send pages on all high frequency beams. It will cause waste of downlink time-frequency resources.
  • RAT Radio Access Technology
  • the high gain beam is narrower and requires multiple beams to transmit the downlink common channel.
  • the specific high gain beam used depends on the cost of the base station and the complexity of the transport architecture.
  • the number of high-gain beams used at the same time is much smaller than the number of beams required for cell coverage, and beam sweeping techniques must be used, specifically to activate different sets of beams at different times and sweep within the cell.
  • the common channel including the paging channel, it is transmitted using the above method of beam sweeping.
  • LTE Long Term Evolution
  • the terminal From the wireless network side, in the LTE system, the terminal has three states, namely, RRC_CONNECTED state, RRC_IDLE state, and RRC_LIGHTCONNECTION state.
  • the terminal can only send uplink data when it enters the RRC_CONNECTED state.
  • the network releases the RRC connection of the terminal through a Radio Resource Control (RRC) connection release, so that the terminal enters an idle state or a lightly connected state.
  • RRC Radio Resource Control
  • the main job of the terminal in the idle state or the light connection state is to listen to the paging on the network side.
  • the paging is monitored by Discontinuous Reception (DRX). That is, only a short period of time in each cycle is in the receiving state, and other times in the cycle are in the non-receiving state.
  • DRX Discontinuous Reception
  • the maximum DRX period configured on the network side is 2560 ms.
  • the DRX cycle can be configured for up to tens of minutes. In the case where the DRX cycle is configured, only the receiver is turned on to receive the network side paging indication message and the possible paging message, and the receiver is turned off at other times.
  • the purpose of power saving can be achieved.
  • Only one subframe (1ms) in each paging cycle is in the receiving state, and other times in the period are non-receiving state, in which the paging wireless network temporary identifier (Paging Radio Network Temporary Identity,
  • the paging message is scheduled by the P-RNTI, and the paging of multiple User Equipments (UEs) can be multiplexed into one paging message, as shown in FIG.
  • the terminal From the wireless network side, in the NR system, the terminal has three states, namely, RRC_CONNECTED state, RRC_IDLE state, and RRC_INACTIVE state.
  • the terminal can only send uplink data when it enters the RRC_CONNECTED state.
  • the network releases the RRC connection of the terminal through the RRC connection release message, so that the terminal enters an idle state or a lightly connected state.
  • the main work of the terminal in the idle state or the inactive state is to listen to the paging on the network side, and the terminal can simultaneously receive the paging initiated by the RAN and the paging initiated by the core network in the inactive state.
  • the base station needs to send a paging message on all the beams to ensure that all terminals in the coverage can receive the corresponding paging, resulting in waste of downlink time-frequency resources.
  • the embodiment of the present application provides a paging method and apparatus for avoiding sending paging messages on all beams in a high frequency NR system to ensure that all terminals in the coverage can receive corresponding pages, thereby saving Downlink time-frequency resources.
  • the paging message when a paging indication for indicating whether the terminal has a paging message is sent to the terminal, when receiving the random access preamble sequence sent by the terminal, the paging message is sent to the terminal, thereby It is avoided to send paging messages on all beams to ensure that all terminals in the coverage can receive corresponding pages, thereby saving downlink time-frequency resources.
  • the sending, by the terminal, a paging indication, which is used to indicate whether the terminal has a paging message specifically includes: sending, to a terminal that is in a radio resource control RRC idle state or an RRC inactive state or an RRC light connection state.
  • a paging indication indicating whether the terminal has a paging message.
  • the paging indication for indicating whether the terminal has a paging message is sent to the terminal by using one of the following solutions:
  • Solution 1 group the terminals and simultaneously broadcast paging instructions of each group of terminals;
  • Solution 2 grouping terminals, and broadcasting paging instructions of different groups of terminals at different times;
  • Solution 4 The terminal is divided into a plurality of large groups, and a plurality of groups are further subdivided for each large group, and paging instructions of terminals of each group in different large groups are broadcasted at different times.
  • the method further includes:
  • the information for receiving the paging indication is broadcasted in the system message, and the information for receiving the paging indication may include one or a combination of the following information: whether to send an indication of the paging indication, a sending period of the paging indication, and a repetition Mechanism, transport block size, frequency hopping mechanism, transmission band information.
  • the information for receiving the paging indication further includes a number of terminal groups
  • the information for receiving the paging indication further includes the number of packets of the group.
  • the paging indicator carries a group identifier of the terminal, and the group identifier of the terminal is:
  • terminal identification mod (number of terminal packets).
  • the paging indicator carries the group identifier of the group, and the group identifier of the group is:
  • the terminal identifier is an international mobile subscriber identity of the terminal, or a system architecture evolved temporary mobile subscriber identity, or a preset preset terminal identifier between the base stations, where the temporary mobile subscriber identity is evolved when using the system architecture.
  • the system architecture evolves the reserved value of the temporary mobile subscriber identity.
  • the terminals in the second solution are grouped by using one of the following solutions:
  • Scheme A grouping terminals by using a discontinuous reception mechanism
  • Solution B The terminals (terminal identification) mod (the number of terminal groups) equal to the current radio frame number are grouped into one group.
  • the method further includes: broadcasting the number of the terminal groups.
  • the terminal in the solution 4 is divided into a large group by using one of the following solutions:
  • Scheme A The terminal is divided into a plurality of large groups by using a discontinuous reception mechanism
  • the method further includes: broadcasting the large number of groups.
  • the terminal identifier used to calculate the group identifier of the large group is different from the terminal identifier used to calculate the group identifier of the group.
  • the method further includes:
  • a random access resource available in the called scenario is sent, where the random access resource includes a random access sequence set of each beam.
  • the random access resource further includes: a random access preamble sequence repeated transmission times.
  • sending a paging message to the terminal specifically includes:
  • N is the number of random access sequences selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the paging message of the terminal is sent on all beams of the random access preamble sequence of the terminal.
  • a random access preamble sequence is transmitted.
  • the random access preamble sequence to be sent is selected in one of the following manners:
  • N is the number of random access sequences that are selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the method further includes:
  • the selected random access preamble sequence After receiving the paging identifier in the paging identification period, the selected random access preamble sequence is continuously transmitted K times.
  • the method further includes:
  • the random access procedure is initiated.
  • a paging indication sending unit configured to send, to the terminal, a paging indication for indicating whether the terminal has a paging message
  • the paging message sending unit is configured to send a paging message to the terminal when receiving the random access preamble sequence sent by the terminal.
  • the paging indication sending unit is specifically configured to: send, to the terminal in the RRC idle state or the RRC inactive state or the RRC light connection state, a paging indication indicating whether the terminal has a paging message.
  • the paging indication sending unit sends, by using one of the following schemes, a paging indication for indicating whether the terminal has a paging message to the terminal:
  • Solution 1 group the terminals and simultaneously broadcast paging instructions of each group of terminals;
  • Solution 2 grouping terminals, and broadcasting paging instructions of different groups of terminals at different times;
  • Solution 4 The terminal is divided into a plurality of large groups, and a plurality of groups are further subdivided for each large group, and paging instructions of terminals of each group in different large groups are broadcasted at different times.
  • the paging indication sending unit is further configured to:
  • the information for receiving the paging indication is broadcasted in the system message, and the information for receiving the paging indication may include one or a combination of the following information: whether to send an indication of the paging indication, a sending period of the paging indication, and a repetition Mechanism, transport block size, frequency hopping mechanism, transmission band information.
  • the information for receiving the paging indication further includes a number of terminal groups
  • the information for receiving the paging indication further includes the number of packets of the group.
  • the paging indicator carries a group identifier of the terminal, and the group identifier of the terminal is:
  • terminal identification mod (number of terminal packets).
  • the paging indicator carries the group identifier of the group, and the group identifier of the group is:
  • the terminal identifier is an international mobile subscriber identity of the terminal, or a system architecture evolved temporary mobile subscriber identity, or a preset preset terminal identifier between the base stations, where the temporary mobile subscriber identity is evolved when using the system architecture.
  • the system architecture evolves the reserved value of the temporary mobile subscriber identity.
  • the paging indication sending unit groups the terminals in the second solution by using one of the following solutions:
  • Scheme A grouping terminals by using a discontinuous reception mechanism
  • Solution B The terminals (terminal identification) mod (the number of terminal groups) equal to the current radio frame number are grouped into one group.
  • the paging indication sending unit is further configured to: broadcast the number of the terminal groups.
  • the paging indication sending unit performs a large group division of the terminals in the scheme 4 by using one of the following solutions:
  • Scheme A The terminal is divided into a plurality of large groups by using a discontinuous reception mechanism
  • the paging indication sending unit is further configured to: broadcast the large number of groups.
  • the terminal identifier used to calculate the group identifier of the large group is different from the terminal identifier used to calculate the group identifier of the group.
  • the paging message sending unit is further configured to: send a random access resource that is available in the called scenario, where the random access resource includes a random access sequence set of each beam.
  • the random access resource further includes: a random access preamble sequence repeated transmission times.
  • the paging message sending unit is specifically configured to:
  • N is the number of random access sequences selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the paging message of the terminal is sent on all beams of the random access preamble sequence of the terminal.
  • Receiving a paging indication unit configured to receive a paging indication sent by the network side to indicate whether the terminal has a paging message
  • a random access preamble sequence sending unit configured to send a random access preamble sequence when determining that there is a paging message according to the paging indication.
  • the random access preamble sending unit selects a random access preamble sequence to be sent in one of the following manners:
  • N is the number of random access sequences that are selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the random access preamble sequence sending unit is further configured to:
  • the selected random access preamble sequence After receiving the paging identifier in the paging identification period, the selected random access preamble sequence is continuously transmitted K times.
  • the random access preamble sequence sending unit is further configured to: after sending the random access preamble sequence, receive a paging message sent by the network side, and if the terminal is determined to be called according to the paging message, initiate a random Access process.
  • a memory for storing program instructions
  • a processor configured to invoke a program instruction stored in the memory, and execute according to the obtained program:
  • the processor sends, by the transceiver, a paging indication for indicating whether the terminal has a paging message to the terminal in the RRC idle state or the RRC inactive state or the RRC light connection state.
  • the processor sends, by using a transceiver, a paging indication to the terminal by using the transceiver to indicate whether the terminal has a paging message:
  • Solution 1 group the terminals and simultaneously broadcast paging instructions of each group of terminals;
  • Solution 2 grouping terminals, and broadcasting paging instructions of different groups of terminals at different times;
  • Solution 4 The terminal is divided into a plurality of large groups, and a plurality of groups are further subdivided for each large group, and paging instructions of terminals of each group in different large groups are broadcasted at different times.
  • the processor is further configured to: broadcast, by the transceiver, information for receiving the paging indication in a system message, where the information for receiving the paging indication may include one or a combination of the following information: whether The indication of sending the paging indication, the sending period of the paging indication, the repetition mechanism, the transmission block size, the frequency hopping mechanism, and the transmission frequency band information.
  • the information for receiving the paging indication further includes a number of terminal groups
  • the information for receiving the paging indication further includes the number of packets of the group.
  • the paging indicator carries a group identifier of the terminal, and the group identifier of the terminal is:
  • terminal identification mod (number of terminal packets).
  • the paging indicator carries the group identifier of the group, and the group identifier of the group is:
  • the terminal identifier is an international mobile subscriber identity of the terminal, or a system architecture evolved temporary mobile subscriber identity, or a preset preset terminal identifier between the base stations, where the temporary mobile subscriber identity is evolved when using the system architecture.
  • the system architecture evolves the reserved value of the temporary mobile subscriber identity.
  • the processor groups the terminals in the second solution by using a transceiver by using one of the following solutions:
  • Scheme A grouping terminals by using a discontinuous reception mechanism
  • Solution B The terminals (terminal identification) mod (the number of terminal groups) equal to the current radio frame number are grouped into one group.
  • the processor is further configured to: broadcast, by the transceiver, the number of the terminal groups.
  • the processor performs a large group division of the terminals in the solution 4 by using one of the following solutions:
  • Scheme A The terminal is divided into a plurality of large groups by using a discontinuous reception mechanism
  • the processor is further configured to: broadcast the large number of groups by using a transceiver.
  • the terminal identifier used to calculate the group identifier of the large group is different from the terminal identifier used to calculate the group identifier of the group.
  • the processor is further configured to: send, by using a transceiver, a random access resource that is available in the called scenario, where the random access resource includes a random access sequence set of each beam.
  • the random access resource further includes: a random access preamble sequence repeated transmission times.
  • a memory for storing program instructions
  • a processor configured to invoke a program instruction stored in the memory, and execute according to the obtained program:
  • the processor selects a random access preamble sequence to be sent in one of the following manners:
  • N is the number of random access sequences that are selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the processor is further configured to:
  • the selected random access preamble sequence After receiving the paging identifier in the paging identification period by the transceiver, the selected random access preamble sequence is continuously transmitted K times.
  • the processor is further configured to: after receiving the random access preamble sequence by the transceiver, receive, by using the transceiver, a paging message sent by the network side, if it is determined, according to the paging message, that the terminal is called, Random access process.
  • a computer storage medium provided by an embodiment of the present application stores computer executable instructions for causing the computer to execute any of the methods described above.
  • FIG. 1 is a schematic diagram of a paging cycle in the prior art
  • FIG. 2 is a schematic flowchart of a paging method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart diagram of another paging method according to an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a paging apparatus on a network side according to an embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of a paging apparatus on a terminal side according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of another paging apparatus on the network side according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of another paging apparatus on a terminal side according to an embodiment of the present disclosure.
  • the embodiment of the present application provides a paging method and apparatus for avoiding sending paging messages on all beams in a high frequency NR system to ensure that all terminals in the coverage can receive corresponding pages, thereby saving Downlink time-frequency resources.
  • the paging method provided by the embodiment of the present application has the main idea that the terminal in the RRC idle state or the RRC inactive state or the RRC light connection state receives the paging indication, and if there is a paging message in the paging indication, the terminal sends the random message. After the access sequence is received, the base station sends a paging message on the downlink beam corresponding to the random access preamble sequence after receiving the random access preamble sequence.
  • the specific plan is as follows:
  • the base station may broadcast the paging indicator by using one of the following solutions:
  • Solution 1 The base station groups the terminals and simultaneously broadcasts the paging indications of the groups of terminals. For example, a bit sequence whose length is the number of terminal packets, each bit corresponding to one packet, 1 indicates that there is a paging message, and 0 indicates that there is no paging message.
  • Solution 2 The base station groups the terminals and broadcasts paging indications of different groups of terminals at different times. For example, a paging indication of the terminal packet is transmitted at the same time, and 1 bit is a signal. When it is a bit, 1 indicates that there is a paging message, 0 indicates that there is no paging message; when it is a signal, the signal can be detected to indicate that there is a paging message, otherwise it indicates that there is no paging message.
  • Solution 3 The base station does not group the terminals and broadcasts a paging indicator. For example, 1 bit or a signal. When it is a bit, 1 indicates that there is a paging message, 0 indicates that there is no paging message; when it is a signal, the signal can be detected to indicate that there is a paging message, otherwise it indicates that there is no paging message.
  • a paging indicator For example, 1 bit or a signal. When it is a bit, 1 indicates that there is a paging message, 0 indicates that there is no paging message; when it is a signal, the signal can be detected to indicate that there is a paging message, otherwise it indicates that there is no paging message.
  • Solution 4 The base station divides the terminal into a plurality of large groups, and further subdivides a plurality of groups for each large group, and the base station broadcasts paging instructions of terminals of different groups in different large groups at different times, that is, paging indications.
  • the paging identifier of the group in the large group corresponding to the current time is included; that is, in the fourth scheme, the paging indication broadcast by the base station at the same time corresponds to the same large group, but the base station does not have to be further refined for further refinement.
  • the paging indications of all the terminals in the same large group are broadcasted, and only the paging indications of the terminals of the partial group in the same large group can be broadcasted to prevent the terminal from being erroneously awake.
  • the paging indication of the terminal group is sent at the same time, and the paging indication is a bit sequence whose length is the number of packets of the terminal group, each bit corresponds to a group group, and 1 indicates that the group terminal has a paging message, and Indicates that the group terminal does not have a paging message.
  • the base station broadcasts information for receiving the paging indication in the system message, where the information for receiving the paging indication may include one or a combination of the following information: whether to send the indication of the paging indication, and the sending of the paging indication Cycle, repetition mechanism, transport block size, frequency hopping mechanism, transmission band information, etc.
  • the information for receiving the paging indication further includes the number of terminal packets (that is, the number of packets indicated by the paging).
  • the information for receiving the paging indication further includes the number of packets of the group (that is, the number of packets of the paging identifier).
  • the paging indicator of each group is related to the group identifier of the terminal, that is, the paging indicator may carry the group identifier of the terminal, and the group identifier of the terminal is (terminal identifier) mod (the number of terminal packets).
  • the paging indicator of each group in the paging instruction of the large group is related to the terminal identifier, and the group identifier of the terminal is (terminal identifier) mod (the number of groups).
  • the terminal identifier is "011”
  • the number of groups is (3)
  • the terminal identifier may be an International Mobile Subscriber Identity (IMSI) of the terminal, or a System Architecture Evolution (SAE) Temporary Mobile Subscriber Identity (SAE-Temporary Mobile Subscriber Identity, S-TMSI), or a terminal identifier known to other base stations, may use the reserved value of S-TMSI when S-TMSI is used but the terminal does not have S-TMSI.
  • IMSI International Mobile Subscriber Identity
  • SAE System Architecture Evolution
  • S-TMSI Temporary Mobile Subscriber Identity
  • the base station may group the terminals in the foregoing solution 2 by using one of the following solutions:
  • Solution A The terminal is grouped by using the existing DRX mechanism, and the terminals that wake up at the time when the base station sends the paging indication (that is, the terminal that receives the paging indication) are grouped into one group, and the parameters required by the base station to broadcast the DRX mechanism include: DRX cycle, nB and paging narrowband number, etc. These parameters are parameters for the terminal to determine the time of receiving the paging message.
  • Solution B grouping (terminal identification) mod (the number of terminal groups) equal to the current radio frame number into a group, the terminal identifier may be an IMSI or S-TMSI or a terminal identifier known by other base stations, and the base station broadcast terminal group Number.
  • the base station may divide the terminals in the foregoing solution 4 into a large group by using one of the following solutions:
  • Solution A The existing DRX mechanism is used to divide the terminal into a plurality of large groups, and the terminals that wake up at the time when the base station sends the paging indication (that is, the terminal that receives the paging indication) are divided into a large group, and the base station broadcasts the DRX mechanism.
  • Required parameters including DRX cycle, nB, and paging narrowband number.
  • Solution B The terminal (the terminal identifier) mod (the number of large groups) equal to the current radio frame number is divided into a large group, and the terminal identifier may be an IMSI or S-TMSI or a terminal identifier known by other base stations, and the base station broadcasts a large The number of groups.
  • the group identifier used to calculate the paging indication transmission packet (large group) and the terminal identifier used to calculate the group identification of the paging indication group are different.
  • the base station sends the random access resource that is available in the called scenario, where the random access resource includes a random access sequence set of each beam, and optionally includes a random access preamble sequence repeated transmission times.
  • the terminal After the terminal receives the paging identifier as the paging indicator, if the paging identifier indicates that there is paging, the terminal selects a random access preamble sequence according to one of the following manners, and sends the selection at the next random access moment. Random access preamble sequence, otherwise not processed.
  • the terminal selects a random access preamble sequence by using the following manners one or two.
  • N is the number of optional random access sequences in the beam selected by the terminal (the strongest beam detected by the terminal), and the UE_id is the terminal identifier, and the terminal identifier may be the IMSI or S-TMSI of the terminal or HASH (terminal identification) or terminal identification known by other base stations, and satisfies the paging identification packet (terminal packet for scheme 1) or paging indication transmission packet (sub-group in the above scheme 4) or paging identification packet (Sub-group in the above scheme 4) has not been used, and P is the identifier of the random access preamble sequence.
  • Manner 2 The terminal randomly selects a random access preamble sequence available under the selected beam.
  • the terminal If the terminal receives the repeated transmission sequence K of the random access preamble sequence sent by the base station, the terminal continuously transmits the selected random access preamble sequence K times in the paging identification period.
  • the base station calculates, according to a preset rule, a beam set where the paged terminal may be located, and on the beam set. Sending a paging message of the terminal; if the terminal selects the random access preamble sequence by using the second mode, the base station sends the paging message of all the paging terminals on all the beams of the random access preamble sequence of the receiving terminal.
  • the base station calculates a set of beams in which the paged terminal may be located according to a preset rule. For example, the base station plans paging terminal 1, but at other time, in addition to the terminal 1 and other terminals receiving the paging indication, the random access is initiated. When they all transmit random access sequences on the same beam, the base station must send a paging message on the beam; otherwise, when the terminal selects a random access sequence based on the terminal identifier known by the base station, the random access The sequence may reflect the possible terminal identity. The base station compares the actual paged terminal identifier with the possible terminal identifier. If it matches, the paging message is sent on the beam, otherwise it is not sent.
  • the terminal determines whether it is called, and if it is called, initiates a random access procedure.
  • a paging method provided by an embodiment of the present application includes:
  • S101 Send a paging indication to the terminal to indicate whether the terminal has a paging message.
  • the paging message when a paging indication for indicating whether the terminal has a paging message is sent to the terminal, when receiving the random access preamble sequence sent by the terminal, the paging message is sent to the terminal, thereby It is avoided to send paging messages on all beams to ensure that all terminals in the coverage can receive corresponding pages, thereby saving downlink time-frequency resources.
  • another paging method provided by the embodiment of the present application includes:
  • S201 Receive a paging indication sent by the network side to indicate whether the terminal has a paging message.
  • Embodiment 1 The base station groups the terminals and simultaneously broadcasts the paging indications of the groups of terminals (corresponding to the foregoing solution 1), and the specific paging method includes:
  • Step 1 The base station broadcasts information for receiving the paging indication in the system message, where the information may include: an indication of whether to send the paging indication, a period for sending the paging indication, a repetition mechanism, a transmission block size, and a frequency hopping mechanism. , the number of packets of transmission band information and paging indication.
  • the base station When the base station sends the paging indication, the number of packets that the base station sends the paging indication and the paging indication during the period in which the paging indication is sent may be repeated or not repeated, and the paging indication may be a fixed size or configured by the base station, and The base station can also use frequency hopping and a designated transmission band.
  • the base station sends a random access resource that can be used in the called scenario, including a random access sequence set of each beam, and optionally includes a random access sequence transmission repetition number.
  • Step 2 When the base station receives the paging message of the core network or the paging is initiated by the base station, the base station sends a paging indication according to the sending manner in the first step, where the paging indication of each group is related to the terminal identifier, and the group identifier of the terminal is ( Terminal identification) mod (number of packets).
  • the terminal identifier may be the IMSI or S-TMSI of the terminal or the terminal identifier known to other base stations, and the reserved value of the S-TMSI is used when the S-TMSI is used but the terminal does not have the S-TMSI.
  • Step 3 When the terminal receives the paging indication, the terminal calculates the group identifier of the paging indication described by the terminal according to step 2.
  • the terminal When the paging indication of the group is a paging message, the terminal follows the following manner. A random access preamble sequence is selected, and a random access preamble sequence is sent at the next random access moment, otherwise it is not processed.
  • N is the number of optional random access sequences in the beam selected by the terminal
  • the UE_id is the terminal identifier, which may be the IMSI of the terminal or the S-TMSI or HASH (terminal identifier) or the terminal identifier known by other base stations.
  • P is the identifier of the random access preamble sequence.
  • Manner 2 The terminal randomly selects a random access preamble sequence available under the selected beam.
  • the terminal If the terminal receives the random access preamble sequence transmission repetition number K sent by the base station, the terminal repeatedly transmits K times in the paging identification period.
  • Step 4 After receiving the random access preamble sequence of the terminal, if the terminal selects the random access preamble sequence in the first step, the base station calculates the beam set where the paging terminal may be located according to the preset rule, and The paging message of the terminal is sent on the beam set; if the terminal uses mode 2, the base station sends the paging message of all the paging terminals on all beams that receive the terminal random access preamble sequence.
  • Step 5 After receiving the paging message, the terminal determines whether it is called, and if it is called, initiates a random access procedure.
  • Embodiment 2 The base station groups the terminals and broadcasts the paging indications of the different groups of terminals at different times (corresponding to the foregoing solution 2), and the specific paging method includes:
  • Step 1 The base station broadcasts information for receiving the paging indication in the system message, where the information may include: an indication of whether to send the paging indication, a period for sending the paging indication, a repetition mechanism, a transmission block size, and a frequency hopping mechanism. , transmission band information.
  • the base station instructs the base station to send the paging indication
  • the base station sends the paging indication in the period of sending the paging indication, and may repeat or not repeat the transmission.
  • the paging indication may be a fixed size or configured by the base station, and the base station may also use the hopping. Frequency and specified transmission band.
  • the base station sends a random access resource that can be used in the called scenario, including a random access sequence set of each beam, and optionally includes a random access sequence transmission repetition number.
  • Step 2 When the base station receives the paging message of the core network or the paging is initiated by the base station, the base station may send the paging message by using one of two schemes:
  • Solution A The terminal is grouped by using the existing DRX mechanism, and the terminals waking up in the time period when the base station sends the paging indication are a group.
  • step 1 the parameters required for the base station to broadcast the DRX mechanism, including the DRX cycle, nB, and paging, are added. Narrow band number, etc.
  • Terminal identification mod (number of transmission packets) is a group of terminals equal to the current radio frame number, and the terminal identifier may be an IMSI or S-TMSI or a terminal identifier known by other base stations, and the base station broadcast is added in step 1. The number of packets transmitted.
  • the paging indicator is sent according to the sending method in step 1.
  • Step 3 When the terminal receives the paging indication, when the paging indication is that there is paging, the terminal selects a random access preamble sequence according to one of the following manners, and sends a random access preamble sequence at the next random access moment, Otherwise it will not be processed.
  • N is the number of optional random access sequences in the beam selected by the terminal
  • the UE_id is the terminal identifier, which may be the IMSI of the terminal or the S-TMSI or HASH (terminal identifier) or the terminal identifier known by other base stations.
  • P is the identifier of the random access preamble sequence.
  • Manner 2 The terminal randomly selects a random access preamble sequence available under the selected beam.
  • the terminal If the terminal receives the random access preamble sequence transmission repetition number K sent by the base station, the terminal repeatedly transmits K times in the paging identification period. The terminal can only send the random access preamble in the next paging indication period of the base station.
  • Step 4 After receiving the random access preamble sequence of the terminal, if the terminal selects the random access preamble sequence in the first step, the base station calculates the beam set where the paging terminal may be located according to the preset rule, and The paging message of the terminal is sent on the beam set; if the terminal uses mode 2, the base station sends the paging message of all the paging terminals on all beams that receive the terminal random access preamble sequence.
  • Step 5 After receiving the paging message, the terminal determines whether it is called, and if it is called, initiates a random access procedure.
  • Embodiment 3 The base station does not group the terminals and broadcasts a paging indication (corresponding to the foregoing solution 3), and the specific paging method includes:
  • Step 1 The base station broadcasts information for receiving the paging indication in the system message, where the information may include: an indication of whether to send the paging indication, a period for sending the paging indication, a repetition mechanism, a transmission block size, and a frequency hopping mechanism. And transmission band information.
  • the base station instructs the base station to send the paging indication
  • the number of packets that the base station sends the paging indication and the paging indication during the period in which the paging indication is sent may be repeated or not repeated, and the paging indication may be a fixed size or configured by the base station.
  • the base station can also use frequency hopping and specify the transmission frequency band.
  • the base station sends a random access resource that can be used in the called scenario, including a random access sequence set of each beam, and optionally includes a random access sequence transmission repetition number.
  • Step 2 When the base station receives the paging message of the core network or the paging is initiated by the base station, the base station sends a single paging indication according to the sending manner in step 1.
  • Step 3 When the terminal receives the paging indication, when the paging indication is that there is paging, the terminal selects a random access preamble sequence according to one of the following manners, and sends a random access preamble sequence at the next random access moment. Otherwise, it will not be processed.
  • N is the number of optional random access sequences in the beam selected by the terminal
  • the UE_id is the terminal identifier, which may be the IMSI of the terminal or the S-TMSI or HASH (terminal identifier) or the terminal identifier known by other base stations.
  • P is the identifier of the random access preamble sequence.
  • Manner 2 The terminal randomly selects a random access preamble sequence available under the selected beam.
  • the terminal If the terminal receives the random access preamble sequence transmission repetition number K sent by the base station, the terminal repeatedly transmits K times in the paging identification period.
  • Step 4 After receiving the random access preamble sequence of the terminal, if the terminal selects the random access preamble sequence in the first step, the base station calculates the beam set where the paging terminal may be located according to the preset rule, and The paging message of the terminal is sent on the beam set; if the terminal uses mode 2, the base station sends the paging message of all the paging terminals on all beams that receive the terminal random access preamble sequence.
  • Step 5 After receiving the paging message, the terminal determines whether it is called, and if it is called, initiates a random access procedure.
  • Embodiment 4 The base station divides the terminal into a plurality of large groups, and further subdivides a plurality of groups for each large group, and the base station broadcasts paging instructions of the terminals of different groups in different large groups at different times, that is, paging.
  • the indication includes the paging identifier of the group in the large group corresponding to the current time (corresponding to the foregoing solution 4), and the specific paging method includes:
  • Step 1 The base station broadcasts information for receiving the paging indication in the system message, where the information may include: an indication of whether to send the paging indication, a period for sending the paging indication, a repetition mechanism, a transmission block size, and a frequency hopping mechanism. , transmission band information.
  • the base station instructs the base station to send the paging indication
  • the number of the group that sends the paging indication and the paging indication in the period in which the base station sends the paging indication may be repeated or not repeated, and the paging indication may be a fixed size or configured by the base station.
  • the base station can also use frequency hopping and specify the transmission frequency band.
  • the base station sends a random access resource that can be used in the called scenario, including a random access sequence set of each beam, and optionally includes a random access sequence transmission repetition number.
  • Step 2 When the base station receives the paging message of the core network or the paging is initiated by the base station, the base station may send the paging message by using one of two schemes:
  • Solution A The terminal is grouped by using the existing DRX mechanism, and the terminals waking up in the time period when the base station sends the paging indication are a group.
  • step 1 the parameters required for the base station to broadcast the DRX mechanism, including the DRX cycle, nB, and paging, are added. Narrow band number, etc.
  • Terminal identification mod (number of transmission packets) is a group of terminals equal to the current radio frame number, and the terminal identifier may be an IMSI or S-TMSI or a terminal identifier known by other base stations, and the base station broadcast is added in step 1. The number of packets transmitted.
  • the paging indicator is sent according to the sending manner in step 1.
  • the paging indicator of each group in the paging indication is related to the terminal identifier, and the group identifier of the terminal is (terminal identification) mod (the number of groups), and the terminal identifier may be the IMSI of the terminal. Or the terminal identifier known by the S-TMSI or other base station, and the reserved value of the S-TMSI is used when the S-TMSI is used but the terminal does not have the S-TMSI.
  • the paging indication transport packet used to calculate the terminal is different from the terminal identifier used to calculate the paging indication group of the terminal.
  • Step 3 When the terminal receives the paging indication, the terminal calculates the group identifier of the paging indication described by the terminal according to step 2.
  • the terminal When the paging indication of the group is paging, the terminal follows one of the following manners. The random access preamble sequence is selected, and the random access preamble sequence is sent at the next random access moment, otherwise it is not processed.
  • N is the number of optional random access sequences in the beam selected by the terminal
  • the UE_id is the terminal identifier, which may be the IMSI of the terminal or the S-TMSI or HASH (terminal identifier) or the terminal identifier known by other base stations.
  • P is the identifier of the random access preamble sequence.
  • Manner 2 The terminal randomly selects a random access preamble sequence available under the selected beam.
  • the terminal If the terminal receives the random access preamble sequence transmission repetition number K sent by the base station, the terminal repeatedly transmits K times in the paging identification period. The terminal can only send the random access preamble in the next paging indication period of the base station.
  • Step 4 After receiving the random access preamble sequence of the terminal, if the terminal selects the random access preamble sequence in the first step, the base station calculates the beam set where the paging terminal may be located according to the preset rule, and The paging message of the terminal is sent on the beam set; if the terminal uses mode 2, the base station sends the paging message of all the paging terminals on all beams that receive the terminal random access preamble sequence.
  • Step 5 After receiving the paging message, the terminal determines whether it is called, and if it is called, initiates a random access procedure.
  • a paging apparatus provided by an embodiment of the present application includes:
  • the paging indication sending unit 11 is configured to send, to the terminal, a paging indication for indicating whether the terminal has a paging message;
  • the paging message sending unit 12 is configured to send a paging message to the terminal when receiving the random access preamble sequence sent by the terminal.
  • the paging indication sending unit is specifically configured to: send, to the terminal in the RRC idle state or the RRC inactive state or the RRC light connection state, a paging indication indicating whether the terminal has a paging message.
  • the paging indication sending unit sends, by using one of the following schemes, a paging indication for indicating whether the terminal has a paging message to the terminal:
  • Solution 1 group the terminals and simultaneously broadcast paging instructions of each group of terminals;
  • Solution 2 grouping terminals, and broadcasting paging instructions of different groups of terminals at different times;
  • Solution 4 The terminal is divided into a plurality of large groups, and a plurality of groups are further subdivided for each large group, and paging instructions of terminals of each group in different large groups are broadcasted at different times.
  • the paging indication sending unit is further configured to:
  • the information for receiving the paging indication is broadcasted in the system message, and the information for receiving the paging indication may include one or a combination of the following information: whether to send an indication of the paging indication, a sending period of the paging indication, and a repetition Mechanism, transport block size, frequency hopping mechanism, transmission band information.
  • the information for receiving the paging indication further includes a number of terminal groups
  • the information for receiving the paging indication further includes the number of packets of the group.
  • the paging indicator carries a group identifier of the terminal, and the group identifier of the terminal is:
  • terminal identification mod (number of terminal packets).
  • the paging indicator carries the group identifier of the group, and the group identifier of the group is:
  • the terminal identifier is an international mobile subscriber identity of the terminal, or a system architecture evolved temporary mobile subscriber identity, or a preset preset terminal identifier between the base stations, where the temporary mobile subscriber identity is evolved when using the system architecture.
  • the system architecture evolves the reserved value of the temporary mobile subscriber identity.
  • the paging indication sending unit groups the terminals in the second solution by using one of the following solutions:
  • Scheme A grouping terminals by using a discontinuous reception mechanism
  • Solution B The terminals (terminal identification) mod (the number of terminal groups) equal to the current radio frame number are grouped into one group.
  • the paging indication sending unit is further configured to: broadcast the number of the terminal groups.
  • the paging indication sending unit performs a large group division of the terminals in the scheme 4 by using one of the following solutions:
  • Scheme A The terminal is divided into a plurality of large groups by using a discontinuous reception mechanism
  • the paging indication sending unit is further configured to: broadcast the large number of groups.
  • the terminal identifier used to calculate the group identifier of the large group is different from the terminal identifier used to calculate the group identifier of the group.
  • the paging message sending unit is further configured to: send a random access resource that is available in the called scenario, where the random access resource includes a random access sequence set of each beam.
  • the random access resource further includes: a random access preamble sequence repeated transmission times.
  • the paging message sending unit is specifically configured to:
  • N is the number of random access sequences selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the paging message of the terminal is sent on all beams of the random access preamble sequence of the terminal.
  • FIG. 5 another paging apparatus provided by the embodiment of the present application, referring to FIG. 5, includes:
  • the random access preamble sequence sending unit 22 is configured to send a random access preamble sequence when determining that there is a paging message according to the paging indication.
  • the random access preamble sending unit selects a random access preamble sequence to be sent in one of the following manners:
  • N is the number of random access sequences that are selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • the random access preamble sequence sending unit is further configured to:
  • the selected random access preamble sequence After receiving the paging identifier in the paging identification period, the selected random access preamble sequence is continuously transmitted K times.
  • the random access preamble sequence sending unit is further configured to: after sending the random access preamble sequence, receive a paging message sent by the network side, and if the terminal is determined to be called according to the paging message, initiate a random Access process.
  • the device on the terminal side may be the terminal itself or a device in the terminal.
  • the above terminal may be any device such as a user equipment.
  • the terminal can be a cellular telephone, a personal digital assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop computer, a cordless telephone, a wireless local loop (WLL) station, a tablet, and the like.
  • PDA personal digital assistant
  • WLL wireless local loop
  • another paging apparatus provided by the embodiment of the present application includes:
  • the processor 500 is configured to read a program in the memory 520 and perform the following process:
  • a paging message is sent to the terminal.
  • the processor 500 sends, by the transceiver 510, a paging indication for indicating whether the terminal has a paging message to the terminal in the radio resource control RRC idle state or the RRC inactive state or the RRC light connection state.
  • the processor 500 sends, by using the transceiver 510, a paging indication for indicating whether the terminal has a paging message by using the transceiver 510:
  • Solution 1 group the terminals and simultaneously broadcast paging instructions of each group of terminals;
  • Solution 2 grouping terminals, and broadcasting paging instructions of different groups of terminals at different times;
  • Solution 4 The terminal is divided into a plurality of large groups, and a plurality of groups are further subdivided for each large group, and paging instructions of terminals of each group in different large groups are broadcasted at different times.
  • the processor 500 is further configured to broadcast, by using the transceiver 510, information for receiving the paging indication in a system message, where the information for receiving the paging indication may include one or a combination of the following information: Whether to send an indication of a paging indication, a transmission period of a paging indication, a repetition mechanism, a transmission block size, a frequency hopping mechanism, and transmission frequency band information.
  • the information for receiving the paging indication further includes a number of terminal groups
  • the information for receiving the paging indication further includes the number of packets of the group.
  • the paging indicator carries a group identifier of the terminal, and the group identifier of the terminal is:
  • terminal identification mod (number of terminal packets).
  • the paging indicator carries the group identifier of the group, and the group identifier of the group is:
  • the terminal identifier is an international mobile subscriber identity of the terminal, or a system architecture evolved temporary mobile subscriber identity, or a preset preset terminal identifier between the base stations, where the temporary mobile subscriber identity is evolved when using the system architecture.
  • the system architecture evolves the reserved value of the temporary mobile subscriber identity.
  • the processor 500 groups the terminals in the second solution by using the transceiver 510 by using one of the following solutions:
  • Scheme A grouping terminals by using a discontinuous reception mechanism
  • Solution B The terminals (terminal identification) mod (the number of terminal groups) equal to the current radio frame number are grouped into one group.
  • the processor 500 is further configured to broadcast, by using the transceiver 510, the number of the terminal groups.
  • the processor performs a large group division of the terminals in the solution 4 by using one of the following solutions:
  • Scheme A The terminal is divided into a plurality of large groups by using a discontinuous reception mechanism
  • the processor 500 is further configured to broadcast the large number of groups by using the transceiver 510.
  • the terminal identifier used to calculate the group identifier of the large group is different from the terminal identifier used to calculate the group identifier of the group.
  • the processor 500 is further configured to: send, by the transceiver 510, a random access resource that is available in the called scenario, where the random access resource includes a random access sequence set of each beam.
  • the random access resource further includes: a random access preamble sequence repeated transmission times.
  • the transceiver 510 is configured to receive and transmit data under the control of the processor 500.
  • the bus architecture can include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 500 and various circuits of memory represented by memory 520.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 510 can be a plurality of components, including a transmitter and a transceiver, providing means for communicating with various other devices on a transmission medium.
  • the processor 500 is responsible for managing the bus architecture and general processing, and the memory 520 can store data used by the processor 500 when performing operations.
  • the processor 500 can be a central buried device (CPU), an application specific integrated circuit (ASIC), a field-programmable gate array (FPGA), or a complex programmable logic device (Complex Programmable Logic Device). , CPLD).
  • CPU central buried device
  • ASIC application specific integrated circuit
  • FPGA field-programmable gate array
  • CPLD complex programmable logic device
  • another paging apparatus provided by the embodiment of the present application includes:
  • the processor 600 is configured to read a program in the memory 620 and perform the following process:
  • the random access preamble sequence is transmitted through the transceiver 610.
  • the processor 600 selects a random access preamble sequence to be transmitted in one of the following manners:
  • N is the number of random access sequences that are selectable by the terminal
  • UE_id is a terminal identifier
  • P is an identifier of a random access preamble sequence
  • processor 600 is further configured to:
  • the selected random access preamble sequence is continuously transmitted K times.
  • the processor 600 is further configured to: after transmitting the random access preamble sequence by the transceiver 610, receive, by using the transceiver 610, a paging message sent by the network side, if the terminal is called according to the paging message. , initiate a random access process.
  • the transceiver 610 is configured to receive and transmit data under the control of the processor 600.
  • the bus architecture may include any number of interconnected buses and bridges, specifically linked by one or more processors represented by processor 600 and various circuits of memory represented by memory 620.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be further described herein.
  • the bus interface provides an interface.
  • Transceiver 610 can be a plurality of components, including a transmitter and a receiver, providing means for communicating with various other devices on a transmission medium.
  • the user interface 630 may also be an interface capable of externally connecting the required devices, including but not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.
  • the processor 600 is responsible for managing the bus architecture and general processing, and the memory 620 can store data used by the processor 600 in performing operations.
  • the processor 600 may be a CPU (Central Embedded Device), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), or a CPLD (Complex Programmable Logic Device). , complex programmable logic devices).
  • CPU Central Embedded Device
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • Any of the paging devices on the terminal side provided by the foregoing embodiments of the present application may be any type of terminal device, for example.
  • the terminal device may also be referred to as a user equipment (User Equipment, referred to as "UE"), a mobile station (Mobile Station, abbreviated as "MS”), a mobile terminal (Mobile Terminal), etc.
  • UE User Equipment
  • MS Mobile Station
  • Mobile Terminal Mobile Terminal
  • the terminal may The ability to communicate with one or more core networks via a Radio Access Network (RAN), for example, the terminal can be a mobile phone (or “cellular” phone), or a computer with mobile nature, etc.
  • RAN Radio Access Network
  • the terminal can also be a portable, pocket, handheld, computer built-in or in-vehicle mobile device.
  • Any of the paging devices on the network side provided by the foregoing embodiments of the present application may be any type of network device, for example, any type of base station.
  • the network device may be a base station (e.g., an access point), referring to a device in the access network that communicates with the wireless terminal over one or more sectors over the air interface.
  • the base station can be used to convert the received air frame to the IP packet as a router between the wireless terminal and the rest of the access network, wherein the remainder of the access network can include an Internet Protocol (IP) network.
  • IP Internet Protocol
  • the base station can also coordinate attribute management of the air interface.
  • the base station may be a base station (BTS, Base Transceiver Station) in GSM or CDMA, or may be a base station (NodeB) in WCDMA, or may be an evolved base station in LTE (NodeB or eNB or e-NodeB, evolutional Node B) may also be a gNB in a 5G system, which is not limited in the embodiment.
  • BTS Base Transceiver Station
  • NodeB base station
  • NodeB evolved base station in LTE
  • LTE NodeB or eNB or e-NodeB, evolutional Node B
  • 5G system which is not limited in the embodiment.
  • the embodiment of the present application provides a computer storage medium for storing the computer program instructions used by the apparatus provided in the foregoing embodiment of the present application, and includes a program for executing any of the methods provided by the foregoing embodiments of the present application.
  • the computer storage medium can be any available media or data storage device accessible by a computer, including but not limited to magnetic storage (eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.), optical storage (eg, CD, DVD, BD, HVD, etc.), and semiconductor memories (for example, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).
  • magnetic storage eg, floppy disk, hard disk, magnetic tape, magneto-optical disk (MO), etc.
  • optical storage eg, CD, DVD, BD, HVD, etc.
  • semiconductor memories for example, ROM, EPROM, EEPROM, non-volatile memory (NAND FLASH), solid-state hard disk (SSD)).
  • the terminal in the RRC idle state or the RRC inactive state or the RRC light connection state receives the paging indication information, and if the paging message is indicated, the terminal sends the random access preamble sequence.
  • the base station After receiving the random preamble sequence, the base station sends a paging message on the downlink beam corresponding to the random access preamble sequence. Therefore, in the high-frequency NR system, the base station needs to transmit the paging message on all the beams to ensure that all the terminals in the coverage can receive the corresponding paging, resulting in waste of downlink time-frequency resources.
  • embodiments of the present application can be provided as a method, system, or computer program product.
  • the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment in combination of software and hardware.
  • the 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.
  • 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

本申请公开了一种寻呼方法及装置，用以在高频NR系统中，避免在所有波束上都发送寻呼消息以保证覆盖内的所有终端都能够收到相应寻呼，从而节省下行时频资源。本申请提供的一种寻呼方法，包括：向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。

Description

一种寻呼方法及装置
本申请要求在2017年3月24日提交中国专利局、申请号为201710184425.6、发明名称为“一种寻呼方法及装置”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
本申请涉及通信技术领域，尤其涉及一种寻呼方法及装置。
背景技术
随着无线通信系统的发展，5G的新的无线接入技术(Radio Access Technology，RAT)(New RAT，简称NR)系统支持在高频工作，这就要求基站在所有高频波束上发送寻呼，会造成下行时频资源的浪费。
关于现有技术中的波束扫动：
对于工作频率低于6GHz的系统，可以使用宽波束；然而对于远远高于6GHz的系统，小区的覆盖范围会随着天线增益的缩减而减小，那么为了保证小区的覆盖面积，就需要更高的天线增益以抵消路损，从而使用更大的天线阵列。高增益波束更窄，需要使用多个波束传输下行公共信道，具体使用的高增益波束取决于基站的成本和传输机架构的复杂度。同时使用的高增益波束的数量远远小于小区覆盖所需的波束个数，那就必须使用波束扫动技术，具体是在不同时间激活不同集合的波束，并在小区内扫动。对于公共信道，包括寻呼信道，就是使用上述波束扫动的方法来发送的。
关于现有技术中的长期演进(Long Term Evolution，LTE)寻呼：
从无线网络侧来说，在LTE系统，终端有三种状态，即RRC_CONNECTED(连接)状态，RRC_IDLE(空闲)状态和RRC_LIGHTCONNECTION(轻连接)状态。终端只有在进入到RRC_CONNECTED状态才能发送上行数据。网络通过无线资源控制(Radio Resource Control，RRC)连接(connection)释放(release)消息释放终端的RRC连接，使终端进入空闲态或者轻连接态。
终端在空闲态或者轻连接态下的主要工作就是监听网络侧的寻呼。为了省电都是以非连续接收(Discontinuous Reception，DRX)方式监听寻呼。即每一个周期中仅仅有一小段时间是处于接收状态，该周期内其它时间都是非接收状态的。对于LTE系统，网络侧配置的最大DRX周期为2560ms。而对于支持eDRX的LTE系统，DRX的周期最长可以配置为几十分钟。在配置了DRX周期的情况下，仅打开接收机来接收网络侧寻呼指示消息以及可能的寻呼消息，其他时间都是关闭接收机的。通过这种方式可以达到省电的目的。每 一个寻呼周期中仅仅有一个子帧(1ms)是处于接收状态，该周期内其它时间都是非接收状态的，在该子帧中，使用寻呼无线网络临时标识(Paging Radio Network Temporary Identity，P-RNTI)调度寻呼消息，且多个用户设备(User Equipment，UE)的寻呼可以复用到一个寻呼消息中，如图1所示。
关于现有技术中的NR寻呼：
从无线网络侧来说，在NR系统，终端有三种状态，即RRC_CONNECTED(连接)状态，RRC_IDLE(空闲)状态和RRC_INACTIVE(非激活)状态。终端只有在进入到RRC_CONNECTED状态才能发送上行数据。网络通过RRC connection release消息释放终端的RRC连接，使终端进入空闲态或者轻连接态。
终端在空闲态或者非激活态下的主要工作就是监听网络侧的寻呼，终端在非激活态可以同时接收RAN发起的寻呼和核心网发起的寻呼。
综上所述，现有技术在高频NR系统中，基站需要在所有波束上都发送寻呼消息保证覆盖内的所有终端都能够收到相应寻呼，造成下行时频资源的浪费。
发明内容
本申请实施例提供了一种寻呼方法及装置，用以在高频NR系统中，避免在所有波束上都发送寻呼消息以保证覆盖内的所有终端都能够收到相应寻呼，从而节省下行时频资源。
本申请实施例提供的一种寻呼方法，包括：
向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
本申请实施例，通过向终端发送用于指示所述终端是否有寻呼消息的寻呼指示，当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息，从而避免在所有波束上都发送寻呼消息以保证覆盖内的所有终端都能够收到相应寻呼，从而节省下行时频资源。
可选地，所述向终端发送用于指示所述终端是否有寻呼消息的寻呼指示，具体包括：向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
可选地，采用如下方案之一向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
方案一、将终端分组，同时广播各组终端的寻呼指示；
方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
方案三、仅广播一个寻呼指示；
方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
可选地，该方法还包括：
在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
可选地，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
可选地，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
(终端标识)mod(终端分组数)。
可选地，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
(终端标识)mod(小组个数)。
可选地，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
可选地，采用如下方案之一对所述方案二中的终端进行分组：
方案A：采用非连续接收机制将终端分组；
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
可选地，该方法还包括：广播所述终端组个数。
可选地，采用如下方案之一对所述方案四中的终端进行大组划分：
方案A：采用非连续接收机制将终端分成多个大组；
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
可选地，该方法还包括：广播所述大组个数。
可选地，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
可选地，该方法还包括：
发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
可选地，所述随机接入资源还包括：随机接入前导序列重复发送次数。
可选地，当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息，具体包括：
接收终端发送的随机接入前导序列；
若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
本申请实施例提供的另一种寻呼方法，包括：
接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
可选地，当根据所述寻呼指示确定有寻呼消息时，采用下列方式之一选择需要发送的随机接入前导序列：
方式一：选择满足下列条件的随机接入前导序列：
(UE_id)mod(N)＝(P)mod(N)
其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
方式二：随机选择可用的随机接入前导序列。
可选地，该方法还包括：
接收基站发送的随机接入前导序列的重复发送次数K；
在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
可选地，发送随机接入前导序列后，该方法还包括：
接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
本申请实施例提供的一种寻呼装置，包括：
寻呼指示发送单元，用于向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
寻呼消息发送单元，用于当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
可选地，所述寻呼指示发送单元具体用于：向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
可选地，所述寻呼指示发送单元采用如下方案之一向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
方案一、将终端分组，同时广播各组终端的寻呼指示；
方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
方案三、仅广播一个寻呼指示；
方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
可选地，所述寻呼指示发送单元还用于：
在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
可选地，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
可选地，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
(终端标识)mod(终端分组数)。
可选地，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
(终端标识)mod(小组个数)。
可选地，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
可选地，所述寻呼指示发送单元采用如下方案之一对所述方案二中的终端进行分组：
方案A：采用非连续接收机制将终端分组；
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
可选地，所述寻呼指示发送单元还用于：广播所述终端组个数。
可选地，所述寻呼指示发送单元采用如下方案之一对所述方案四中的终端进行大组划分：
方案A：采用非连续接收机制将终端分成多个大组；
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
可选地，所述寻呼指示发送单元还用于：广播所述大组个数。
可选地，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
可选地，所述寻呼消息发送单元还用于：发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
可选地，所述随机接入资源还包括：随机接入前导序列重复发送次数。
可选地，所述寻呼消息发送单元具体用于：
接收终端发送的随机接入前导序列；
若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
本申请实施例提供的另一种寻呼装置，包括：
接收寻呼指示单元，用于接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
随机接入前导序列发送单元，用于当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
可选地，当根据所述寻呼指示确定有寻呼消息时，所述随机接入前导序列发送单元采用下列方式之一选择需要发送的随机接入前导序列：
方式一：选择满足下列条件的随机接入前导序列：
(UE_id)mod(N)＝(P)mod(N)
其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
方式二：随机选择可用的随机接入前导序列。
可选地，所述随机接入前导序列发送单元还用于：
接收基站发送的随机接入前导序列的重复发送次数K；
在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
可选地，所述随机接入前导序列发送单元还用于：在发送随机接入前导序列后，接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
本申请实施例提供的第三种寻呼装置，包括：
存储器，用于存储程序指令；
处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
通过收发机向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；当通过收发机接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
可选地，所述处理器通过收发机向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
可选地，所述处理器采用如下方案之一通过收发机向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
方案一、将终端分组，同时广播各组终端的寻呼指示；
方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
方案三、仅广播一个寻呼指示；
方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
可选地，所述处理器还用于：通过收发机在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
可选地，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
可选地，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
(终端标识)mod(终端分组数)。
可选地，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
(终端标识)mod(小组个数)。
可选地，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
可选地，所述处理器通过收发机采用如下方案之一对所述方案二中的终端进行分组：
方案A：采用非连续接收机制将终端分组；
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
可选地，所述处理器还用于：通过收发机广播所述终端组个数。
可选地，所述处理器采用如下方案之一对所述方案四中的终端进行大组划分：
方案A：采用非连续接收机制将终端分成多个大组；
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
可选地，所述处理器还用于：通过收发机广播所述大组个数。
可选地，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
可选地，所述处理器还用于：通过收发机发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
可选地，所述随机接入资源还包括：随机接入前导序列重复发送次数。
可选地，所述处理器通过收发机接收终端发送的随机接入前导序列；若所述随机接入 前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
本申请实施例提供的第四种寻呼装置，包括：
存储器，用于存储程序指令；
处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
通过收发机接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；当根据所述寻呼指示确定有寻呼消息时，通过收发机发送随机接入前导序列。
可选地，当根据所述寻呼指示确定有寻呼消息时，所述处理器采用下列方式之一选择需要发送的随机接入前导序列：
方式一：选择满足下列条件的随机接入前导序列：
(UE_id)mod(N)＝(P)mod(N)
其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
方式二：随机选择可用的随机接入前导序列。
可选地，所述处理器还用于：
通过收发机接收基站发送的随机接入前导序列的重复发送次数K；
通过收发机在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
可选地，所述处理器还用于：在通过收发机发送随机接入前导序列后，通过收发机接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
本申请实施例提供的一种计算机存储介质，存储有计算机可执行指令，所述计算机可执行指令用于使所述计算机执行上述任一所述方法。
附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简要介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域的普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为现有技术中的寻呼周期示意图；
图2为本申请实施例提供的一种寻呼方法的流程示意图；
图3为本申请实施例提供的另一种寻呼方法的流程示意图；
图4为本申请实施例提供的网络侧的一种寻呼装置的结构示意图；
图5为本申请实施例提供的终端侧的一种寻呼装置的结构示意图；
图6为本申请实施例提供的网络侧的另一种寻呼装置的结构示意图；
图7为本申请实施例提供的终端侧的另一种寻呼装置的结构示意图。
具体实施方式
本申请实施例提供了一种寻呼方法及装置，用以在高频NR系统中，避免在所有波束上都发送寻呼消息以保证覆盖内的所有终端都能够收到相应寻呼，从而节省下行时频资源。
本申请实施例提供的寻呼方法，其主要思想是处于RRC空闲态或者RRC非激活态或者RRC轻连接态的终端接收寻呼指示，如果寻呼指示中有寻呼消息，则该终端发送随机接入前导序列，基站接收到该随机接入前导序列后，在该随机接入前导序列对应的下行波束上发送寻呼消息。具体方案如下：
可选地，基站可以采用下述方案之一广播寻呼指示：
方案一：基站将终端分组，同时广播各组终端的寻呼指示。例如，一个长度为终端分组个数的比特序列，每个比特对应一个分组，1表示有寻呼消息，0表示没有寻呼消息。
方案二：基站将终端分组，在不同时刻广播不同组终端的寻呼指示。例如，同一时刻发送该终端分组的寻呼指示，1个比特或者是一个信号。当是一个比特时，1表示有寻呼消息，0表示没有寻呼消息；当是一个信号时，能检测到该信号就表示有寻呼消息，否则表示没有寻呼消息。
方案三：基站不将终端分组，广播一个寻呼指示。例如，1个比特或者是一个信号。当是一个比特时，1表示有寻呼消息，0表示没有寻呼消息；当是一个信号时，能检测到该信号就表示有寻呼消息，否则表示没有寻呼消息。
方案四：基站将终端分成多个大组，并且，对每一大组再细分出多个小组，基站在不同时刻广播不同大组中的不同小组的终端的寻呼指示，即寻呼指示中包含当前时刻对应的大组内的小组的寻呼标识；也就是说，在本方案四中，基站在同一时刻广播的寻呼指示对应同一大组，但为了进一步细化，基站不一定要在同一时刻广播同一大组中所有终端的寻呼指示，可以仅广播同一大组中的部分小组的终端的寻呼指示，避免终端被错误唤醒。例如，同一时刻发送该终端分组的寻呼指示，该寻呼指示是一个长度为终端小组的分组个数的比特序列，每个比特对应一个小组分组，1表示该小组终端有寻呼消息，0表示该小组终端没有寻呼消息。
可选地，基站在系统消息中广播用于接收寻呼指示的信息，该用于接收寻呼指示的信 息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息等。对于上述方案一，该用于接收寻呼指示的信息还包括终端分组数(即寻呼指示的分组个数)。对于上述方案四，该用于接收寻呼指示的信息还包括所述小组的分组数(即寻呼标识的分组个数)。
可选地，对于上述方案一，各组的寻呼指示和终端的组标识相关，即寻呼指示中可以携带终端的组标识，终端的组标识为(终端标识)mod(终端分组数)。
可选地，对于上述方案四，大组的寻呼指示中的各小组的寻呼指示与终端标识相关，终端的小组标识为(终端标识)mod(小组个数)。例如，终端标识为“011”，小组个数为(3)，(终端标识)mod(小组个数)＝3mod 3＝0，小组标识为0。
可选地，所述的终端标识可以是终端的国际移动用户识别码(International Mobile Subscriber Identity，IMSI)，或者系统架构演进(System Architecture Evolution，SAE)临时移动用户标识(SAE-Temporary Mobile Subscriber Identity，S-TMSI)，或者其他基站已知的终端标识，当使用S-TMSI但终端没有S-TMSI时，可以使用S-TMSI的保留值。
可选地，基站可以采用如下方案之一对上述方案二中的终端进行分组：
方案A：采用现有DRX机制将终端分组，将在基站发送寻呼指示的时间段醒来的终端(即接收寻呼指示的终端)分为一组，基站广播DRX机制所需的参数，包括DRX周期、nB和寻呼窄带数等，这些参数是用于终端确定接收寻呼消息的时刻的参数。
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组，该终端标识可以是IMSI或S-TMSI或者其他基站已知的终端标识，基站广播终端组个数。
可选地，基站可以采用如下方案之一将上述方案四中的终端分成大组：
方案A：采用现有DRX机制将终端分成多个大组，将在基站发送寻呼指示的时间段醒来的终端(即接收寻呼指示的终端)分为一大组，基站广播DRX机制所需的参数，包括DRX周期、nB和寻呼窄带数等。
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组，该终端标识可以是IMSI或S-TMSI或者其他基站已知的终端标识，基站广播大组个数。
可选地，关于方案四中，用于计算寻呼指示传输分组(大组)的组标识和计算寻呼指示小组的组标识所使用的终端标识不同。
可选地，基站发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合，可选的还包括随机接入前导序列重复发送次数。
可选地，终端接收到作为寻呼指示的寻呼标识后，如果该寻呼标识指示有寻呼，终端按照下述方式之一选择随机接入前导序列，并在下一随机接入时刻发送选择的随机接入前导序列，否则不处理。
可选地，终端采用下列方式一或方式二选择随机接入前导序列。
方式一：终端选择的随机接入前导序列满足下列条件：
(UE_id)mod(N)＝(P)mod(N)
其中，N为终端所选的波束(终端检测到的最强的波束)下的可选的随机接入序列的个数，UE_id为终端标识，该终端标识可以是终端的IMSI或者S-TMSI或HASH(终端标识)或者其他基站已知的终端标识，并且满足在寻呼标识分组(针对方案一的终端分组)或寻呼指示传输分组(上述方案四中的分大组)或寻呼标识分组(上述方案四中的分小组)中未被使用过，P为随机接入前导序列的标识。
方式二：终端随机选择所选波束下可用的随机接入前导序列。
如果终端接收到基站发送的随机接入前导序列的重复发送次数K，终端在寻呼标识周期内连续重复发送K次所选择的随机接入前导序列。
可选地，基站收到终端的随机接入前导序列后，如果终端使用方式一选择随机接入前导序列，基站按照预设规则计算被寻呼终端可能所在的波束集合，并在该波束集合上发送该终端的寻呼消息；如果终端使用方式二选择随机接入前导序列，基站在接收到终端的随机接入前导序列的所有波束上发送所有被寻呼终端的寻呼消息。
其中，基站按照预设规则计算被寻呼终端可能所在的波束集合，例如：基站计划寻呼终端1，但是在某一时刻除了终端1还有其他终端接收到寻呼指示，发起随机接入。当它们都在同一个波束上发送随机接入序列时，基站一定会在该波束上发寻呼消息；否则，当终端们基于基站已知的终端标识选择随机接入序列时，该随机接入序列可以反映出可能的终端标识，基站比对实际被寻呼终端标识和该可能的终端标识，如果匹配，就在该波束上发送寻呼消息，否则不发送。
可选地，终端收到寻呼消息后，判断是否被呼，如果被呼，则发起随机接入流程。
由此可见，在基站侧，参见图2，本申请实施例提供的一种寻呼方法，包括：
S101、向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
S102、当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
本申请实施例，通过向终端发送用于指示所述终端是否有寻呼消息的寻呼指示，当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息，从而避免在所有波束上都发送寻呼消息以保证覆盖内的所有终端都能够收到相应寻呼，从而节省下行时频资源。
相应地，参见图3，在终端侧，本申请实施例提供的另一种寻呼方法，包括：
S201、接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
S202、当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
下面给出几个具体实施例的解释说明。
实施例1、基站将终端分组，同时广播各组终端的寻呼指示(对应上述方案一)，那么 具体的寻呼方法包括：
步骤一、基站在系统消息中广播用于接收寻呼指示的信息,该信息可以包括：是否发送寻呼指示的指示、用于发送寻呼指示的周期、重复机制、传输块大小、跳频机制，传输频带信息和寻呼指示的分组个数。
当基站发送寻呼指示时，基站在发送寻呼指示的周期内发送寻呼指示和寻呼指示的分组数，可以重复或者不重复发送，该寻呼指示可以是固定大小或者由基站配置，同时基站还可以使用跳频和指定传输频带。
基站发送可用于被呼场景下可用的随机接入资源，包括各波束的随机接入序列集合，可选的还包括随机接入序列发送重复次数。
步骤二、当基站收到核心网寻呼消息或者基站发起寻呼时，基站按照步骤一中的发送方式发送寻呼指示，其中各组的寻呼指示和终端标识相关，终端的组标识为(终端标识)mod(分组个数)。终端标识可以是终端的IMSI或者S-TMSI或者其他基站已知的终端标识，当使用S-TMSI时但终端没有S-TMSI时使用S-TMSI的保留值。
步骤三、当终端接收到寻呼指示时，终端按照步骤二中计算该终端所述的寻呼指示的组标识，当该组的寻呼指示为有寻呼消息时，终端按照下述方式之一选择随机接入前导序列，并在下一随机接入时刻发送随机接入前导序列，否则不处理。
方式一：随机接入前导序列选择满足下述条件：
(UE_id)mod(N)＝(P)mod(N)
其中，N为终端所选的波束下可选的随机接入序列的个数，UE_id为终端标识，可以是终端的IMSI或者S-TMSI或HASH(终端标识)或者其他基站已知的终端标识，并且满足在寻呼标识分组(针对方案一的终端分组)或寻呼指示传输分组(上述方案四中的分大组)或寻呼标识分组(上述方案四中的分小组)中未被使用过，P为随机接入前导序列的标识。
方式二：终端随机选择所选波束下可用的随机接入前导序列。
如果终端接收到基站发送的随机接入前导序列发送重复次数K，终端在寻呼标识周期内后面连续重复发送K次。
步骤四、基站收到终端的随机接入前导序列后，如果终端在步骤三中使用方式一选择随机接入前导序列，基站按照预设规则计算被寻呼终端可能所在的波束集合，并在该波束集合上发送该终端的寻呼消息；如果终端使用方式二，基站在接收到终端随机接入前导序列的所有波束上发送所有被寻呼终端的寻呼消息。
步骤五、终端收到寻呼消息后，判断是否被呼，如果被呼则发起随机接入流程。
实施例2、基站将终端分组，在不同时刻广播不同组终端的寻呼指示(对应上述方案二)，则具体的寻呼方法包括：
步骤一、基站在系统消息中广播用于接收寻呼指示的信息,该信息可以包括：是否发 送寻呼指示的指示、用于发送寻呼指示的周期、重复机制、传输块大小、跳频机制，传输频带信息。当基站指示基站发送寻呼指示时，基站在发送寻呼指示的周期内发送寻呼指示，可以重复或者不重复发送，该寻呼指示可以是固定大小或者由基站配置，同时基站还可以使用跳频和指定传输频带。基站发送可用于被呼场景下可用的随机接入资源，包括各波束的随机接入序列集合，可选的还包括随机接入序列发送重复次数。
步骤二、当基站收到核心网寻呼消息或者基站发起寻呼时，基站可以用两种方案中的一种发送寻呼消息：
方案A：采用现有DRX机制将终端分组，在基站发送寻呼指示的时间段醒来的终端为一组，步骤一中增加基站广播DRX机制所需的参数，包括DRX周期、nB和寻呼窄带数等。
方案B：(终端标识)mod(传输分组个数)等于当前无线帧号的终端为一组，该终端标识可以是IMSI或S-TMSI或者其他基站已知的终端标识，步骤一中增加基站广播传输分组个数。
按照步骤一中的发送方式发送寻呼指示。
步骤三、当终端接收到寻呼指示时，当寻呼指示为有寻呼时，终端按照下述方式之一选择随机接入前导序列，并在下一随机接入时刻发送随机接入前导序列，否则不处理。
方式一：随机接入前导序列选择满足下述条件：
(UE_id)mod(N)＝(P)mod(N)
其中，N为终端所选的波束下可选的随机接入序列的个数，UE_id为终端标识，可以是终端的IMSI或者S-TMSI或HASH(终端标识)或者其他基站已知的终端标识，必须满足在传输分组或寻呼标识分组或寻呼标识分小组中未被使用过，P为随机接入前导序列的标识。
方式二：终端随机选择所选波束下可用的随机接入前导序列。
如果终端接收到基站发送的随机接入前导序列发送重复次数K，终端在寻呼标识周期内后面连续重复发送K次。终端只能在基站下一个寻呼指示周期内发送随机接入前导。
步骤四、基站收到终端的随机接入前导序列后，如果终端在步骤三中使用方式一选择随机接入前导序列，基站按照预设规则计算被寻呼终端可能所在的波束集合，并在该波束集合上发送该终端的寻呼消息；如果终端使用方式二，基站在接收到终端随机接入前导序列的所有波束上发送所有被寻呼终端的寻呼消息。
步骤五、终端收到寻呼消息后，判断是否被呼，如果被呼则发起随机接入流程。
实施例3、基站不将终端分组，广播一个寻呼指示(对应上述方案三)，则具体的寻呼方法包括：
步骤一、基站在系统消息中广播用于接收寻呼指示的信息,该信息可以包括：是否发 送寻呼指示的指示、用于发送寻呼指示的周期、重复机制、传输块大小、跳频机制和传输频带信息。当基站指示基站发送寻呼指示时，基站在发送寻呼指示的周期内发送寻呼指示和寻呼指示的分组数，可以重复或者不重复发送，该寻呼指示可以是固定大小或者由基站配置，同时基站还可以使用跳频和指定传输频带。基站发送可用于被呼场景下可用的随机接入资源，包括各波束的随机接入序列集合，可选的还包括随机接入序列发送重复次数。
步骤二、当基站收到核心网寻呼消息或者基站发起寻呼时，基站按照步骤一中的发送方式发送单个寻呼指示。
步骤三、当终端接收到寻呼指示时，当该寻呼指示为有寻呼时，终端按照下述方式之一选择随机接入前导序列，并在下一随机接入时刻发送随机接入前导序列，否则不处理。
方式一：随机接入前导序列选择满足下述条件：
(UE_id)mod(N)＝(P)mod(N)
其中，N为终端所选的波束下可选的随机接入序列的个数，UE_id为终端标识，可以是终端的IMSI或者S-TMSI或HASH(终端标识)或者其他基站已知的终端标识，P为随机接入前导序列的标识。
方式二：终端随机选择所选波束下可用的随机接入前导序列。
如果终端接收到基站发送的随机接入前导序列发送重复次数K，终端在寻呼标识周期内后面连续重复发送K次。
步骤四、基站收到终端的随机接入前导序列后，如果终端在步骤三中使用方式一选择随机接入前导序列，基站按照预设规则计算被寻呼终端可能所在的波束集合，并在该波束集合上发送该终端的寻呼消息；如果终端使用方式二，基站在接收到终端随机接入前导序列的所有波束上发送所有被寻呼终端的寻呼消息。
步骤五、终端收到寻呼消息后，判断是否被呼，如果被呼则发起随机接入流程。
实施例4、基站将终端分成多个大组，并且，对每一大组再细分出多个小组，基站在不同时刻广播不同大组中的不同小组的终端的寻呼指示，即寻呼指示中包含当前时刻对应的大组内的小组的寻呼标识(对应上述方案四)，则具体的寻呼方法包括：
步骤一、基站在系统消息中广播用于接收寻呼指示的信息,该信息可以包括：是否发送寻呼指示的指示、用于发送寻呼指示的周期、重复机制、传输块大小、跳频机制，传输频带信息。当基站指示基站发送寻呼指示时，基站在发送寻呼指示的周期内发送寻呼指示和寻呼指示的小组数，可以重复或者不重复发送，该寻呼指示可以是固定大小或者由基站配置，同时基站还可以使用跳频和指定传输频带。基站发送可用于被呼场景下可用的随机接入资源，包括各波束的随机接入序列集合，可选的还包括随机接入序列发送重复次数。
步骤二、当基站收到核心网寻呼消息或者基站发起寻呼时，基站可以用两种方案中的一种发送寻呼消息：
方案A：采用现有DRX机制将终端分组，在基站发送寻呼指示的时间段醒来的终端为一组，步骤一中增加基站广播DRX机制所需的参数，包括DRX周期、nB和寻呼窄带数等。
方案B：(终端标识)mod(传输分组个数)等于当前无线帧号的终端为一组，该终端标识可以是IMSI或S-TMSI或者其他基站已知的终端标识，步骤一中增加基站广播传输分组个数。
按照步骤一中的发送方式发送寻呼指示，寻呼指示中各小组的寻呼指示和终端标识相关，终端的小组标识为(终端标识)mod(小组个数)，终端标识可以是终端的IMSI或者S-TMSI或者其他基站已知的终端标识，当使用S-TMSI时但终端没有S-TMSI时使用S-TMSI的保留值。用于计算该终端的寻呼指示传输分组和计算该终端的寻呼指示小组所使用的终端标识不同。
步骤三、当终端接收到寻呼指示时，终端按照步骤二中计算该终端所述的寻呼指示的小组标识，当该小组的寻呼指示为有寻呼时，终端按照下述方式之一选择随机接入前导序列，并在下一随机接入时刻发送随机接入前导序列，否则不处理。
方式一：随机接入前导序列选择满足下述条件：
(UE_id)mod(N)＝(P)mod(N)
其中，N为终端所选的波束下可选的随机接入序列的个数，UE_id为终端标识，可以是终端的IMSI或者S-TMSI或HASH(终端标识)或者其他基站已知的终端标识，必须满足在传输分组或寻呼标识分组或寻呼标识分小组中未被使用过，P为随机接入前导序列的标识。
方式二：终端随机选择所选波束下可用的随机接入前导序列。
如果终端接收到基站发送的随机接入前导序列发送重复次数K，终端在寻呼标识周期内后面连续重复发送K次。终端只能在基站下一个寻呼指示周期内发送随机接入前导。
步骤四、基站收到终端的随机接入前导序列后，如果终端在步骤三中使用方式一选择随机接入前导序列，基站按照预设规则计算被寻呼终端可能所在的波束集合，并在该波束集合上发送该终端的寻呼消息；如果终端使用方式二，基站在接收到终端随机接入前导序列的所有波束上发送所有被寻呼终端的寻呼消息。
步骤五、终端收到寻呼消息后，判断是否被呼，如果被呼则发起随机接入流程。
与上述方法相对应地，在网络侧，例如在基站侧，参见图4，本申请实施例提供的一种寻呼装置，包括：
寻呼指示发送单元11，用于向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
寻呼消息发送单元12，用于当接收到所述终端发送的随机接入前导序列时，向所述终 端发送寻呼消息。
可选地，所述寻呼指示发送单元具体用于：向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
可选地，所述寻呼指示发送单元采用如下方案之一向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
方案一、将终端分组，同时广播各组终端的寻呼指示；
方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
方案三、仅广播一个寻呼指示；
方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
可选地，所述寻呼指示发送单元还用于：
在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
可选地，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
可选地，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
(终端标识)mod(终端分组数)。
可选地，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
(终端标识)mod(小组个数)。
可选地，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
可选地，所述寻呼指示发送单元采用如下方案之一对所述方案二中的终端进行分组：
方案A：采用非连续接收机制将终端分组；
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
可选地，所述寻呼指示发送单元还用于：广播所述终端组个数。
可选地，所述寻呼指示发送单元采用如下方案之一对所述方案四中的终端进行大组划分：
方案A：采用非连续接收机制将终端分成多个大组；
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
可选地，所述寻呼指示发送单元还用于：广播所述大组个数。
可选地，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
可选地，所述寻呼消息发送单元还用于：发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
可选地，所述随机接入资源还包括：随机接入前导序列重复发送次数。
可选地，所述寻呼消息发送单元具体用于：
接收终端发送的随机接入前导序列；
若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
相应地，在终端侧，本申请实施例提供的另一种寻呼装置，参见图5，包括：
接收寻呼指示单元21，用于接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
随机接入前导序列发送单元22，用于当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
可选地，当根据所述寻呼指示确定有寻呼消息时，所述随机接入前导序列发送单元采用下列方式之一选择需要发送的随机接入前导序列：
方式一：选择满足下列条件的随机接入前导序列：
(UE_id)mod(N)＝(P)mod(N)
其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
方式二：随机选择可用的随机接入前导序列。
可选地，所述随机接入前导序列发送单元还用于：
接收基站发送的随机接入前导序列的重复发送次数K；
在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
可选地，所述随机接入前导序列发送单元还用于：在发送随机接入前导序列后，接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
终端侧的装置，可以是终端本身，也可以是终端中的装置。上述终端可以是任一用户设备等装置。例如，终端可以是蜂窝电话、个人数字助理(PDA)、无线调制解调器、无 线通信设备、手持设备、膝上型计算机、无绳电话、无线本地环路(WLL)站、平板电脑等。
参见图6，在基站侧，本申请实施例提供的另一种寻呼装置，包括：
处理器500，用于读取存储器520中的程序，执行下列过程：
通过收发机510向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
当通过收发机510接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
可选地，所述处理器500通过收发机510向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
可选地，所述处理器500采用如下方案之一通过收发机510向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
方案一、将终端分组，同时广播各组终端的寻呼指示；
方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
方案三、仅广播一个寻呼指示；
方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
可选地，所述处理器500还用于通过收发机510在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
可选地，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
可选地，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
(终端标识)mod(终端分组数)。
可选地，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
(终端标识)mod(小组个数)。
可选地，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
可选地，所述处理器500通过收发机510采用如下方案之一对所述方案二中的终端进行分组：
方案A：采用非连续接收机制将终端分组；
方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
可选地，所述处理器500还用于通过收发机510广播所述终端组个数。
可选地，所述处理器采用如下方案之一对所述方案四中的终端进行大组划分：
方案A：采用非连续接收机制将终端分成多个大组；
方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
可选地，所述处理器500还用于通过收发机510广播所述大组个数。
可选地，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
可选地，所述处理器500还用于通过收发机510：发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
可选地，所述随机接入资源还包括：随机接入前导序列重复发送次数。
可选地，所述处理器500通过收发机510接收终端发送的随机接入前导序列；若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
收发机510，用于在处理器500的控制下接收和发送数据。
其中，在图6中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器500代表的一个或多个处理器和存储器520代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机510可以是多个元件，即包括发送机和收发机，提供用于在传输介质上与各种其他装置通信的单元。处理器500负责管理总线架构和通常的处理，存储器520可以存储处理器500在执行操作时所使用的数据。
处理器500可以是中央处埋器(CPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程门阵列(Field－Programmable Gate Array，FPGA)或复杂可编程逻辑器件(Complex Programmable Logic Device，CPLD)。
参见图7，在终端侧，本申请实施例提供的另一种寻呼装置，包括：
处理器600，用于读取存储器620中的程序，执行下列过程：
通过收发机610接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
当根据所述寻呼指示确定有寻呼消息时，通过收发机610发送随机接入前导序列。
可选地，当根据所述寻呼指示确定有寻呼消息时，所述处理器600采用下列方式之一 选择需要发送的随机接入前导序列：
方式一：选择满足下列条件的随机接入前导序列：
(UE_id)mod(N)＝(P)mod(N)
其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
方式二：随机选择可用的随机接入前导序列。
可选地，所述处理器600还用于：
通过收发机610接收基站发送的随机接入前导序列的重复发送次数K；
通过收发机610在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
可选地，所述处理器600还用于：在通过收发机610发送随机接入前导序列后，通过收发机610接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
收发机610，用于在处理器600的控制下接收和发送数据。
其中，在图7中，总线架构可以包括任意数量的互联的总线和桥，具体由处理器600代表的一个或多个处理器和存储器620代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。收发机610可以是多个元件，即包括发送机和接收机，提供用于在传输介质上与各种其他装置通信的单元。针对不同的用户设备，用户接口630还可以是能够外接内接需要设备的接口，连接的设备包括但不限于小键盘、显示器、扬声器、麦克风、操纵杆等。
处理器600负责管理总线架构和通常的处理，存储器620可以存储处理器600在执行操作时所使用的数据。
可选的，处理器600可以是CPU(中央处埋器)、ASIC(Application Specific Integrated Circuit，专用集成电路)、FPGA(Field－Programmable Gate Array，现场可编程门阵列)或CPLD(Complex Programmable Logic Device，复杂可编程逻辑器件)。
上述本申请实施例提供的终端侧的任一所述的寻呼装置，例如可以是任意种类的终端设备。
所述终端设备也可称之为用户设备(User Equipment，简称为“UE”)、移动台(Mobile Station，简称为“MS”)、移动终端(Mobile Terminal)等，可选的，该终端可以具备经无线接入网(Radio Access Network，RAN)与一个或多个核心网进行通信的能力，例如，终端可以是移动电话(或称为“蜂窝”电话)、或具有移动性质的计算机等，例如，终端还可以是便携式、袖珍式、手持式、计算机内置的或者车载的移动装置。
上述本申请实施例提供的网络侧的任一所述的寻呼装置，例如可以是任意种类的网络设备，例如是任意种类的基站。
所述网络设备可以为基站(例如，接入点)，指接入网中在空中接口上通过一个或多个扇区与无线终端通信的设备。基站可用于将收到的空中帧与IP分组进行相互转换，作为无线终端与接入网的其余部分之间的路由器，其中接入网的其余部分可包括网际协议(IP)网络。基站还可协调对空中接口的属性管理。例如，基站可以是GSM或CDMA中的基站(BTS，Base Transceiver Station)，也可以是WCDMA中的基站(NodeB)，还可以是LTE中的演进型基站(NodeB或eNB或e-NodeB，evolutional Node B)，也可以是5G系统中的gNB，本方面实施例中不做限定。
本申请实施例提供了一种计算机存储介质，用于储存为上述本申请实施例提供的装置所用的计算机程序指令，其包含用于执行上述本申请实施例提供的任一方法的程序。
所述计算机存储介质可以是计算机能够存取的任何可用介质或数据存储设备，包括但不限于磁性存储器(例如软盘、硬盘、磁带、磁光盘(MO)等)、光学存储器(例如CD、DVD、BD、HVD等)、以及半导体存储器(例如ROM、EPROM、EEPROM、非易失性存储器(NAND FLASH)、固态硬盘(SSD))等。
综上所述，本申请实施例，对处于RRC空闲态或者RRC非激活态或者RRC轻连接态的终端接收寻呼指示信息，如果指示为有寻呼消息，该终端发送随机接入前导序列，基站接收到该随机前导序列后，在该随机接入前导序列对应的下行波束上发送寻呼消息。从而在高频NR系统中，避免基站需要在所有波束上都发送寻呼消息保证覆盖内的所有终端都能够收到相应寻呼，造成下行时频资源的浪费。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请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。
尽管已描述了本申请的优选实施例，但本领域内的技术人员一旦得知了基本创造性概念，则可对这些实施例作出另外的变更和修改。所以，所附权利要求意欲解释为包括优选实施例以及落入本申请范围的所有变更和修改。
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实施例的精神和范围。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 (61)

  1. 一种寻呼方法，其特征在于，该方法包括：
    向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
    当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
  2. 根据权利要求1所述的方法，其特征在于，所述向终端发送用于指示所述终端是否有寻呼消息的寻呼指示，具体包括：向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
  3. 根据权利要求1所述的方法，其特征在于，采用如下方案之一向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
    方案一、将终端分组，同时广播各组终端的寻呼指示；
    方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
    方案三、仅广播一个寻呼指示；
    方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
  4. 根据权利要求3所述的方法，其特征在于，该方法还包括：
    在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
  5. 根据权利要求4所述的方法，其特征在于，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
    对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
  6. 根据权利要求3所述的方法，其特征在于，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
    (终端标识)mod(终端分组数)。
  7. 根据权利要求3所述的方法，其特征在于，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
    (终端标识)mod(小组个数)。
  8. 根据权利要求6或7所述的方法，其特征在于，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
  9. 根据权利要求3所述的方法，其特征在于，采用如下方案之一对所述方案二中的终端进行分组：
    方案A：采用非连续接收机制将终端分组；
    方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
  10. 根据权利要求9所述的方法，其特征在于，该方法还包括：广播所述终端组个数。
  11. 根据权利要求7所述的方法，其特征在于，采用如下方案之一对所述方案四中的终端进行大组划分：
    方案A：采用非连续接收机制将终端分成多个大组；
    方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
  12. 根据权利要求11所述的方法，其特征在于，该方法还包括：广播所述大组个数。
  13. 根据权利要求11所述的方法，其特征在于，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
  14. 根据权利要求1所述的方法，其特征在于，该方法还包括：
    发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
  15. 根据权利要求14所述的方法，其特征在于，所述随机接入资源还包括：随机接入前导序列重复发送次数。
  16. 根据权利要求1所述的方法，其特征在于，当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息，具体包括：
    接收终端发送的随机接入前导序列；
    若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
  17. 一种寻呼方法，其特征在于，包括：
    接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
    当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
  18. 根据权利要求17所述的方法，其特征在于，当根据所述寻呼指示确定有寻呼消息时，采用下列方式之一选择需要发送的随机接入前导序列：
    方式一：选择满足下列条件的随机接入前导序列：
    (UE_id)mod(N)＝(P)mod(N)
    其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    方式二：随机选择可用的随机接入前导序列。
  19. 根据权利要求18所述的方法，其特征在于，该方法还包括：
    接收基站发送的随机接入前导序列的重复发送次数K；
    在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
  20. 根据权利要求17所述的方法，其特征在于，发送随机接入前导序列后，该方法还包括：
    接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
  21. 一种寻呼装置，其特征在于，包括：
    寻呼指示发送单元，用于向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；
    寻呼消息发送单元，用于当接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
  22. 根据权利要求21所述的装置，其特征在于，所述寻呼指示发送单元具体用于：向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
  23. 根据权利要求21所述的装置，其特征在于，所述寻呼指示发送单元采用如下方案之一向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
    方案一、将终端分组，同时广播各组终端的寻呼指示；
    方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
    方案三、仅广播一个寻呼指示；
    方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
  24. 根据权利要求23所述的装置，其特征在于，所述寻呼指示发送单元还用于：
    在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
  25. 根据权利要求24所述的装置，其特征在于，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
    对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
  26. 根据权利要求23所述的装置，其特征在于，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
    (终端标识)mod(终端分组数)。
  27. 根据权利要求23所述的装置，其特征在于，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
    (终端标识)mod(小组个数)。
  28. 根据权利要求26或27所述的装置，其特征在于，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
  29. 根据权利要求23所述的装置，其特征在于，所述寻呼指示发送单元采用如下方案之一对所述方案二中的终端进行分组：
    方案A：采用非连续接收机制将终端分组；
    方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
  30. 根据权利要求29所述的装置，其特征在于，所述寻呼指示发送单元还用于：广播所述终端组个数。
  31. 根据权利要求27所述的装置，其特征在于，所述寻呼指示发送单元采用如下方案之一对所述方案四中的终端进行大组划分：
    方案A：采用非连续接收机制将终端分成多个大组；
    方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
  32. 根据权利要求31所述的装置，其特征在于，所述寻呼指示发送单元还用于：广播所述大组个数。
  33. 根据权利要求31所述的装置，其特征在于，对于所述方案四，用于计算所述大组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
  34. 根据权利要求21所述的装置，其特征在于，所述寻呼消息发送单元还用于：发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
  35. 根据权利要求29所述的装置，其特征在于，所述随机接入资源还包括：随机接入前导序列重复发送次数。
  36. 根据权利要求21所述的装置，其特征在于，所述寻呼消息发送单元具体用于：
    接收终端发送的随机接入前导序列；
    若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前 导序列的所有波束上发送该终端的寻呼消息。
  37. 一种寻呼装置，其特征在于，包括：
    接收寻呼指示单元，用于接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；
    随机接入前导序列发送单元，用于当根据所述寻呼指示确定有寻呼消息时，发送随机接入前导序列。
  38. 根据权利要求37所述的装置，其特征在于，当根据所述寻呼指示确定有寻呼消息时，所述随机接入前导序列发送单元采用下列方式之一选择需要发送的随机接入前导序列：
    方式一：选择满足下列条件的随机接入前导序列：
    (UE_id)mod(N)＝(P)mod(N)
    其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    方式二：随机选择可用的随机接入前导序列。
  39. 根据权利要求38所述的装置，其特征在于，所述随机接入前导序列发送单元还用于：
    接收基站发送的随机接入前导序列的重复发送次数K；
    在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
  40. 根据权利要求37所述的装置，其特征在于，所述随机接入前导序列发送单元还用于：在发送随机接入前导序列后，接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
  41. 一种寻呼装置，应用于网络侧，其特征在于，包括：
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
    通过收发机向终端发送用于指示所述终端是否有寻呼消息的寻呼指示；当通过收发机接收到所述终端发送的随机接入前导序列时，向所述终端发送寻呼消息。
  42. 根据权利要求41所述的装置，其特征在于，所述处理器通过收发机向处于无线资源控制RRC空闲态或者RRC非激活态或者RRC轻连接态的终端发送用于指示终端是否有寻呼消息的寻呼指示。
  43. 根据权利要求41所述的装置，其特征在于，所述处理器采用如下方案之一通过收发机向终端发送用于指示所述终端是否有寻呼消息的寻呼指示：
    方案一、将终端分组，同时广播各组终端的寻呼指示；
    方案二、将终端分组，在不同时刻广播不同组终端的寻呼指示；
    方案三、仅广播一个寻呼指示；
    方案四、将终端分成多个大组，并且，对每一大组再细分出多个小组，在不同时刻广播不同大组中的各个小组的终端的寻呼指示。
  44. 根据权利要求43所述的装置，其特征在于，所述处理器还用于：
    通过收发机在系统消息中广播用于接收所述寻呼指示的信息，该用于接收寻呼指示的信息可以包括下列信息之一或组合：是否发送寻呼指示的指示、寻呼指示的发送周期、重复机制、传输块大小、跳频机制、传输频带信息。
  45. 根据权利要求44所述的装置，其特征在于，对于所述方案一，所述用于接收寻呼指示的信息还包括终端分组数；
    对于所述方案四，所述用于接收寻呼指示的信息还包括所述小组的分组数。
  46. 根据权利要求43所述的装置，其特征在于，对于所述方案一，所述寻呼指示中携带终端的组标识，所述终端的组标识为：
    (终端标识)mod(终端分组数)。
  47. 根据权利要求43所述的装置，其特征在于，对于所述方案四，所述寻呼指示中携带所述小组的组标识，所述小组的组标识为：
    (终端标识)mod(小组个数)。
  48. 根据权利要求46或47所述的装置，其特征在于，所述的终端标识为终端的国际移动用户识别码，或者系统架构演进临时移动用户标识，或者基站之间已知的预设终端标识，其中，当使用系统架构演进临时移动用户标识时，但终端没有系统架构演进临时移动用户标识时，使用系统架构演进临时移动用户标识的保留值。
  49. 根据权利要求43所述的装置，其特征在于，所述处理器通过收发机采用如下方案之一对所述方案二中的终端进行分组：
    方案A：采用非连续接收机制将终端分组；
    方案B：将(终端标识)mod(终端组个数)等于当前无线帧号的终端分为一组。
  50. 根据权利要求49所述的装置，其特征在于，所述处理器还用于：通过收发机广播所述终端组个数。
  51. 根据权利要求47所述的装置，其特征在于，所述处理器采用如下方案之一对所述方案四中的终端进行大组划分：
    方案A：采用非连续接收机制将终端分成多个大组；
    方案B：将(终端标识)mod(大组个数)等于当前无线帧号的终端分为一大组。
  52. 根据权利要求51所述的装置，其特征在于，所述处理器还用于：通过收发机广播所述大组个数。
  53. 根据权利要求51所述的装置，其特征在于，对于所述方案四，用于计算所述大 组的组标识所使用的终端标识，与用于计算所述小组的组标识所使用的终端标识不同。
  54. 根据权利要求41所述的装置，其特征在于，所述处理器还用于：通过收发机发送被呼场景下可用的随机接入资源，该随机接入资源包括各波束的随机接入序列集合。
  55. 根据权利要求49所述的装置，其特征在于，所述随机接入资源还包括：随机接入前导序列重复发送次数。
  56. 根据权利要求41所述的装置，其特征在于，所述处理器通过收发机接收终端发送的随机接入前导序列；
    若所述随机接入前导序列满足下列条件：(UE_id)mod(N)＝(P)mod(N)，则按照该条件确定被寻呼终端所在的波束集合，并在该波束集合上发送该终端的寻呼消息；其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    若所述随机接入前导序列是终端随机选择并发送的，则在接收到该终端的随机接入前导序列的所有波束上发送该终端的寻呼消息。
  57. 一种寻呼装置，应用于终端侧，其特征在于，包括：
    存储器，用于存储程序指令；
    处理器，用于调用所述存储器中存储的程序指令，按照获得的程序执行：
    通过收发机接收网络侧发送的用于指示所述终端是否有寻呼消息的寻呼指示；当根据所述寻呼指示确定有寻呼消息时，通过收发机发送随机接入前导序列。
  58. 根据权利要求57所述的装置，其特征在于，当根据所述寻呼指示确定有寻呼消息时，所述处理器采用下列方式之一选择需要发送的随机接入前导序列：
    方式一：选择满足下列条件的随机接入前导序列：
    (UE_id)mod(N)＝(P)mod(N)
    其中，其中，N为所述终端可选的随机接入序列的个数，UE_id为终端标识，P为随机接入前导序列的标识；
    方式二：随机选择可用的随机接入前导序列。
  59. 根据权利要求58所述的装置，其特征在于，所述处理器还用于：
    通过收发机接收基站发送的随机接入前导序列的重复发送次数K；
    通过收发机在寻呼标识周期内收到寻呼标识后，连续重复发送K次所选择的随机接入前导序列。
  60. 根据权利要求57所述的装置，其特征在于，所述处理器还用于：在通过收发机发送随机接入前导序列后，通过收发机接收网络侧发送的寻呼消息，若根据该寻呼消息确定本终端被呼，则发起随机接入流程。
  61. 一种计算机存储介质，其特征在于，所述计算机存储介质存储有计算机可执行指 令，所述计算机可执行指令用于使所述计算机执行权利要求1至20任一项所述的方法。
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