WO2019047770A1 - Procédé de communication et dispositif de communication - Google Patents

Procédé de communication et dispositif de communication Download PDF

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Publication number
WO2019047770A1
WO2019047770A1 PCT/CN2018/103376 CN2018103376W WO2019047770A1 WO 2019047770 A1 WO2019047770 A1 WO 2019047770A1 CN 2018103376 W CN2018103376 W CN 2018103376W WO 2019047770 A1 WO2019047770 A1 WO 2019047770A1
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WIPO (PCT)
Prior art keywords
terminal
information
frequency resource
network device
message
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PCT/CN2018/103376
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English (en)
Chinese (zh)
Inventor
高宽栋
李赛楠
黄煌
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华为技术有限公司
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Publication of WO2019047770A1 publication Critical patent/WO2019047770A1/fr

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method and a communication device for communication in a wireless communication system.
  • Beamforming techniques are used to limit the energy of the transmitted signal to a certain beam direction, thereby increasing signal and reception efficiency.
  • Beamforming technology can effectively expand the transmission range of wireless signals and reduce signal interference, thereby achieving higher communication efficiency and higher network capacity.
  • it is first necessary to match the transmit beam and the receive beam so that the gain from the sender to the receiver is maximized, otherwise a relatively high communication efficiency cannot be obtained.
  • the base station end beam is required to be scanned. Beam scanning will bring many problems, one of which is the increased overhead of broadcast information transmission, especially paging information.
  • the number of terminal device identifications per paging is often increased.
  • an increase in the number of terminal device identifications will result in an overhead of power consumption of the terminal device.
  • the embodiments of the present application provide a communication method, device, and related products, so as to reduce power consumption of a terminal device during a paging process.
  • the embodiment of the present application provides a communication method, where the method includes:
  • DCI Downlink control information DCI sent by the network device, where the DCI includes information of a physical downlink shared channel PDSCH time-frequency resource block, the DCI schedules N PDSCH time-frequency resource blocks, and each PDSCH time-frequency resource block provides at least one terminal Paging information of the device, where N is a positive integer greater than or equal to 1;
  • a PDSCH time-frequency resource block that needs to be demodulated is a partial time-frequency resource block in the N PDSCH time-frequency resource blocks;
  • the PDSCH time-frequency resource block that needs to be demodulated is a partial time-frequency resource block in the N PDSCH time-frequency resource blocks. Compared with demodulating the PDSCH time-frequency resource block included in the DCI, the power consumption overhead of the terminal equipment due to demodulation of the PDSCH time-frequency resource block is reduced.
  • the value of the N is obtained by one of the following methods:
  • the value of N is used as the value of the N according to the value of the pre-configured N.
  • the network configuration information includes at least one of the following: system information, a media access control-control element (MAC-CE), and a radio resource control (Radio resource control). , RRC) signaling, Remaining minimum system information (RMSI) or system information block (SIB).
  • RRC radio resource control
  • RMSI Remaining minimum system information
  • SIB system information block
  • the information about the PDSCH time-frequency resource block includes, but is not limited to, a subcarrier position, a symbol position, a demodulation method, and the like of the PDSCH time-frequency resource block.
  • the time-frequency resource size of each of the N PDSCH time-frequency resource blocks is the same; and/or each of the N PDSCH time-frequency resource blocks
  • the modulation and coding strategy MCS of the PDSCH time-frequency resource blocks are the same.
  • a size of each of the N PDSCH time-frequency resource blocks is different; and each of the N PDSCH time-frequency resource blocks is a time-frequency resource block.
  • the modulation and coding strategy MCS is the same.
  • the modulation and coding strategy MCS of each PDSCH time-frequency resource block is the same, and the overhead of PDCCH resources caused by the indication MSC can be reduced.
  • the information of the PDSCH time-frequency resource block further includes a size and/or a location of each of the N PDSCH time-frequency resource blocks.
  • the DCI further includes a number of terminal devices that are paged by each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks;
  • the DCI further includes the number of terminal device identifiers carried in each of the N PDSCH time-frequency resource blocks.
  • the determining, by the DCI, a PDSCH time-frequency resource block that needs to be demodulated includes:
  • the information of the PDSCH time-frequency resource block is information of the N PDSCH time-frequency resource blocks;
  • the information of the PDSCH time-frequency resource block is information of each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks.
  • the method further includes: the N PDSCH time-frequency resource blocks, where the number of physical resource blocks (PRBs) is restricted by a pre-configuration or a manner indicated by the network device. Or the PDSCH time-frequency resource block after the bandwidth size.
  • the information of the PDSCH time-frequency resource block is the information of the N PDSCH time-frequency resource blocks:
  • the information of the N PDSCH time-frequency resource blocks indicates information after the N pieces of PDSCH time-frequency resource blocks are grouped;
  • the information of the N PDSCH time-frequency resource blocks indicates the size of the N PDSCH time-frequency resource blocks.
  • the information of the PDSCH time-frequency resource block is information of each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks:
  • the N DCIs are received by the N PDCCHs, and each of the N DCIs includes information of one PDSCH time-frequency resource block.
  • the DCI further includes packet index information, a resource block size, and an MCS of the terminal device identifier; or
  • the DCI also includes paging access timing (Paging occasion, PO) index information, resource block size, and MCS of the terminal device identifier.
  • Paging occasion, PO paging access timing
  • the method further includes:
  • the configuration information includes Y group information, and each group of information includes information of X terminal devices of the paging or identifiers of X terminal devices; the X and Y are positive integers greater than or equal to 1;
  • the method further includes:
  • the PO that needs to be received is determined based on the values of X and Y.
  • an embodiment of the present application provides a communication method, where the method includes:
  • Determining downlink control information DCI to be transmitted where the DCI includes information of a physical downlink shared channel PDSCH time-frequency resource block, the DCI schedules N PDSCH time-frequency resource blocks, and each PDSCH time-frequency resource block provides at least one terminal device Paging information, the N is a positive integer greater than or equal to 1;
  • the DCI is transmitted through a physical downlink control channel PDCCH.
  • the method further includes:
  • the value of the N is indicated by the DCI
  • the value of the N is indicated by the network configuration information.
  • the value of the N is determined according to a pre-configuration.
  • a time-frequency resource of each of the N PDSCH time-frequency resource blocks has the same time-frequency resource size; and each of the N PDSCH time-frequency resource blocks has a time-frequency
  • the modulation and coding strategy of the resource block is the same as the MCS.
  • each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks is different; and/or, each PDSCH in the N PDSCH time-frequency resource blocks
  • the modulation and coding strategy MCS of the frequency resource block is the same.
  • the information of the PDSCH time-frequency resource block further includes a size and/or a location of each of the N PDSCH time-frequency resource blocks.
  • the DCI further includes a number of terminal devices that are paged by each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks;
  • the DCI further includes the number of terminal device identifiers carried in each of the N PDSCH time-frequency resource blocks.
  • the method further includes: limiting, by a pre-configured or indicated manner, a number of physical resource blocks PRB or a bandwidth size of the N PDSCH time-frequency resource blocks.
  • the information of the PDSCH time-frequency resource block is information of the N PDSCH time-frequency resource blocks; or the information of the PDSCH time-frequency resource block is the N PDSCH time-frequency Information of each PDSCH time-frequency resource block in the resource block.
  • the information of the PDSCH time-frequency resource block is the information of the N PDSCH time-frequency resource blocks:
  • the information of the N PDSCH time-frequency resource blocks indicates information after the N pieces of PDSCH time-frequency resource blocks are grouped;
  • the information of the N PDSCH time-frequency resource blocks indicates the size of the N PDSCH time-frequency resource blocks.
  • the information of the PDSCH time-frequency resource block is information of each PDSCH time-frequency resource block in the N PDSCH time-frequency resource blocks:
  • the N DCIs are received by the N PDCCHs, and each of the N DCIs includes information of one PDSCH time-frequency resource block.
  • the DCI further includes packet index information, a resource block size, and an MCS of the terminal device identifier; or the DCI further includes a PO index information, a resource block size, and an MCS of the terminal device identifier.
  • the method further includes:
  • each group of information includes an identifier of the X terminal devices or X terminal devices that are paged; the X and Y are positive integers greater than or equal to 1; : determining the paging access opportunity PO that needs to be received according to the values of X and Y.
  • the embodiment of the present application further provides a communication method, including:
  • configuration information of the paging message where the configuration information includes information of a control resource block of the paging message, where the one control resource block is searched by N paging access occasions (PO)
  • the time-frequency resource composition of the control resource of the call message is a positive integer greater than or equal to 1;
  • one control resource block is composed of time-frequency resources of control resources of paging messages corresponding to N POs, and paging messages for multiple POs can be scheduled by one control resource block, which can reduce configuration information about POs. s expenses.
  • control resource includes, but is not limited to, a physical downlink control channel PDCCH of a paging message corresponding to the PO, a downlink control information DCI of the paging message corresponding to the PO, or a control resource set CORESET of the paging message corresponding to the PO.
  • the N may also be a positive integer greater than or equal to 2.
  • the one control resource block may be composed of time-frequency resources of control resources of multiple paging messages in a PO duration.
  • the duration of the PO is a number of slots in a PO, a number of subframes, or a number of mini-slots.
  • the duration of the PO may be implicitly indicated by the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the duration of the PO is related to the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the duration of the PO may be an integer multiple or a fractional multiple of the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the method further includes:
  • the duration of the PO is obtained according to the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • paging messages of multiple POs may be grouped into one group.
  • the control resources of the paging messages within a group are transmitted using one control resource block.
  • the control information of the paging messages of different POs in each group may use the same DCI format, or different DCI formats may be used. For paging messages using different DCI formats, there may be the same number of bits. The number of paging messages in different groups may be equal or different.
  • the information about the configured paging message includes, but is not limited to, remaining minimum system information (RMSI), physical broadcast channel (PBCH), DCI, and radio resource control ( Radio resource control (RRC) or Medium Access Control-control element (MAC-CE).
  • RMSI remaining minimum system information
  • PBCH physical broadcast channel
  • DCI digital subscriber control
  • RRC Radio resource control
  • MAC-CE Medium Access Control-control element
  • control resources of the paging messages corresponding to the multiple POs may be located in a common search space or in a control resource set.
  • a control resource of multiple paging messages in a PO duration may be quasi-co-located (QCL) or associated with a synchronization.
  • QCL quasi-co-located
  • SS block On the signal block (SS block), or QCL or associated to a specific reference signal.
  • the control resources of multiple paging messages (eg, PDCCHs of paging messages corresponding to multiple POs) for one PO duration may also be QCL or associated to different SS blocks, or QCL or associated to different specific reference signals.
  • the time-frequency resource block is divided into K equal parts, and the K is a positive integer greater than or equal to 1.
  • the value of the K may be the same as the number of paging messages.
  • the value of K may also be less than the number of paging messages, such that each aliquot of time-frequency resources may include control resources for multiple paging messages.
  • the value of the K may be pre-configured by a network device (for example, a base station), or may be pre-agreed by the terminal device and the network device.
  • the number of time-frequency resource shares ie, the value of the K may also be implicitly indicated according to the size of the common search space resource or the configured resource size.
  • time-frequency resource blocks of the K equal parts may be prioritized in time order, or may be placed or distributed in a frequency sequential priority manner.
  • the time-frequency resource blocks of the K equal parts may also be sequential or reversed, and may be pre-agreed by the terminal and the network device, or may be pre-defined by the protocol.
  • the embodiment of the present application provides another communication method, including:
  • the configuration information includes time-frequency location information of a control resource block of the paging message, and the paging bit corresponding to the N paging access occasions PO of the one control resource block
  • the time-frequency resource composition of the control resource of the message; the N is a positive integer greater than or equal to 1;
  • one control resource block is composed of time-frequency resources of control resources of paging messages corresponding to N POs, and paging messages for multiple POs can be scheduled by one control resource block, which can reduce configuration information about POs. s expenses.
  • control resource includes, but is not limited to, a PDCCH of a paging message corresponding to the PO, a DCI of the paging message corresponding to the PO, or a CORESET of the paging message corresponding to the PO.
  • the N may also be a positive integer greater than or equal to 2.
  • the one control resource block may be composed of time-frequency resources of control resources of multiple paging messages in a PO duration.
  • the duration of the PO is a number of slots in a PO, a number of subframes, or a number of mini-slots.
  • the duration of the PO may be implicitly indicated by the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the duration of the PO is related to the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the duration of the PO may be an integer multiple or a fractional multiple of the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the method further includes:
  • the duration of the PO is obtained according to the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the terminal device determines, according to a period of the configuration information, a location of a time-frequency resource of a control resource of a paging message sent by the PO of the terminal device.
  • the embodiment of the present application further provides a signal transmission method, a related device, and a system, which can dynamically configure the number of data bits of a paging indication, and reduce the resource overhead of beam scanning during paging message transmission.
  • the paging indication may be referred to as a first message.
  • the embodiment of the present application provides a signal transmission method, where the method may include: receiving, by a terminal, first configuration information and a first message sent by a network device; the first configuration information being used by the terminal to determine the a group in which the terminal is located, the first message is used to indicate whether a group in which the terminal is located has a terminal being paged; the terminal determines, according to the first configuration information, a group in which the terminal is located; If the group has a terminal that is paged, the terminal sends an uplink signal to the network device.
  • the embodiment of the present application provides a signal transmission method, where the method may include: the network device sends the first configuration information and the first message to the terminal; the first configuration information is used by the terminal to determine the terminal.
  • the first message is used to indicate whether the group in which the terminal is located has a terminal being paged; if the group in which the terminal is located has a terminal being paged, the network device receives an uplink signal sent by the terminal. The network device sends a paging message to the terminal according to the uplink signal.
  • the first configuration information may include at least one of: a number of data bits of the first message, a group of the first message associated with a number, a number of data bits indicating each group in the first message, a number of data bits used to calculate packet information, a location of the data bits used to calculate the packet information in the terminal identifier, a paging occasion The number, the length of the discontinuous reception period, or the number of sync blocks.
  • the first configuration information may flexibly configure the size of the first message, that is, the number of data bits of the first message, according to actual conditions.
  • the more the number of terminals the more the number of data bits of the first message configured, or the more the number of groups associated with the first message.
  • Another possible way is that the more data terminals are configured, the more data bits are configured for the first message, or the more the number of groups associated with the first message.
  • the number of beams scanned by the network device can be reduced to reduce the time-frequency resource overhead of beam scanning during paging message transmission.
  • a tracking area or a plurality of terminals within the jurisdiction of the network device or a plurality of terminals corresponding to one paging occasion may be grouped in the present application.
  • the number of groups of packets is the number of groups associated with the first message.
  • the grouping mode can be pre-agreed by the network device and the terminal, or can be predefined by a standard protocol.
  • the group and terminal identifier in which the terminal is located the number of packets, the number of data bits of the first message, the number of groups associated with the first message, the number of data bits indicating each group in the first message, used for calculation
  • the number of data bits of the packet information, the location of the data bits used to calculate the packet information in the terminal identifier, the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks are related to at least one of . It can be understood that some or all of the above at least one piece of information may be pre-defined by a standard protocol, or may be agreed by the network device and the terminal.
  • the terminal may calculate the group in which the terminal is located by using the following two computing policies.
  • the first calculation strategy through the formula To calculate the group in which the terminal is located.
  • the UEID is a value represented by the terminal identifier.
  • N may be according to at least one of the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks, for example, may be the number of POs or the number of paging windows included in the DRX cycle, or may be a synchronization signal block. The number and so on.
  • n indicates that the terminal belongs to the nth group in the K group.
  • the data bits used to calculate the group information are part of the data bits in the terminal identifier.
  • the data bits used to calculate the packet information are selected by two factors: the location of the data bits used to calculate the packet information in the terminal identification, and the number of data bits used to calculate the packet information.
  • the foregoing two factors may be determined by: the first factor, that is, the location of the data bit used to calculate the packet information in the terminal identifier, which may be determined according to the constant N above; the second factor, that is, The number of data bits for calculating the packet information can be determined according to the number of groups K of the packets.
  • the first message can be used to indicate whether a group in which the terminal is located has a terminal paged.
  • a plurality of terminals are divided into a plurality of groups, and if each of the terminals in the group includes the paged terminal, it indicates that the group has the terminal being paged.
  • the first message may indicate, by using the value of each bit, whether each group has a terminal being paged.
  • each group indicated by the first message may be each group obtained by grouping multiple terminals in a tracking area, or may be a group obtained by grouping multiple terminals in a network device jurisdiction, and It may be a group obtained by grouping a plurality of terminals in one PO.
  • each group indicated by the first message may be a group obtained by grouping a plurality of terminals included in a plurality of tracking areas, or may be multiple included in a plurality of network device jurisdictions.
  • Each of the obtained groups is grouped by the terminal, and may be a group obtained by grouping a plurality of terminals included in the plurality of paging occasions.
  • the terminal may determine the group in which the group is located according to the first configuration information, and determine, according to the first message, whether the group in which the group is located is paged.
  • the network device may not need to send the first configuration information to the network device, and the items configured in the first configuration information may be agreed between the terminal and the network device, It can be pre-defined by standard protocols.
  • the terminal and the network device can determine the group in which the terminal is located according to the agreement or according to the information predefined by the standard protocol.
  • the present application provides a signal transmission method, where the method may include: receiving, by a terminal, first configuration information and a paging message sent by a network device; the first configuration information is used to configure a truncation identifier of the terminal or An index; the paging message includes a truncation identifier or an index of the at least one paged terminal; the terminal determines a truncation identifier or an index of the terminal according to the first configuration information; and if the terminal has a truncated identifier and a location The truncated identifier of the at least one paged terminal is the same, or the terminal sends an uplink signal to the network device if the index of the terminal and the index of the at least one paged terminal are the same.
  • the present application provides a signal transmission method, where the method may include: the network device sends the first configuration information and the paging message to the terminal; the first configuration information is used to configure the truncated identifier or index of the terminal.
  • the paging message includes a truncation identifier or index of at least one paged terminal; if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index and location of the terminal The index of the at least one paged terminal is the same, and the network device receives the uplink signal sent by the terminal.
  • the truncated identifier or index of each terminal may be flexibly configured by using the first configuration information, and the content of the paging message is less by the truncated identifier or the index paging terminal, Reduce the time-frequency resource overhead of beam scanning during paging message transmission.
  • the first configuration information may include at least one of the following:
  • a number of data bits of the first message a number of groups associated with the first message, a number of data bits indicating each group in the first message, a number of data bits used to calculate packet information, and the The location of the data bits of the packet information in the terminal identification, the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks.
  • the truncation identifier or index of the multiple terminals may be configured by using the first configuration information, where the multiple terminals may be multiple in one tracking area.
  • the terminal may also be a plurality of terminals within the jurisdiction of the network device, or may be a paging occasion or a plurality of terminals corresponding to the paging window.
  • the truncation identifier of the terminal is a partial data bit of the terminal identifier.
  • the truncation identifier of the terminal may be determined according to at least one of the following: the number of data bits of the truncated identifier, the location of the truncated identifier in the terminal identifier, the identifier of the terminal, the number of paging occasions, the number of synchronization signal blocks, or the discontinuous reception period. length.
  • part or all of the above at least one piece of information may be predefined by a standard protocol or pre-agreed by the network device and the terminal.
  • the manner of determining the truncated identifier of the terminal according to the at least one piece of information may be multiple, may be predefined by a standard protocol, or may be agreed by the network device and the terminal.
  • the terminal may determine its own truncation identifier according to the first configuration information. Similar to the above-mentioned data bits for calculating group information, the truncation identifier of the terminal can be selected by the following two factors: truncating the number of data bits of the identifier, and truncating the position of the identifier in the terminal identifier.
  • the above two factors may be determined according to the following factors: the first factor, that is, the number of data bits of the truncated identifier; and the second factor, that is, the position of the truncated identifier in the terminal identifier, which may be determined according to N, where N is a constant.
  • N may be determined by at least one of the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks.
  • the truncated identifier of the terminal may occupy M bits, and the truncated identifier of the terminal is adjacent to the lowest log 2 N bits of the terminal identifier.
  • the lowest log 2 N bits of the terminal identifier may be used to calculate a paging occasion corresponding to the terminal.
  • a truncation identifier or index of at least one paged terminal may be included in the paging message.
  • the terminal may determine its own truncation identifier or index according to the first configuration information, and determine whether to be paged according to the paging message.
  • the terminal if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index of the terminal is the same as the truncation identifier of the at least one paged terminal, the terminal considers that the terminal is paged.
  • the network device sends an uplink signal.
  • the terminal is not necessarily paged even if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or the index of the terminal is the same as the truncation identifier of the at least one paged terminal. .
  • the terminal needs to determine whether it is paged in conjunction with the acknowledgment message sent by the network device, and the acknowledgment message may carry the complete identifier of at least one paged terminal.
  • the network device may not need to send the first configuration information to the network device, and the truncation identifier of each terminal may be agreed by the terminal and the network device, or may be pre-proposed by a standard protocol. definition.
  • both the terminal and the network device can determine their own truncated identification or index according to the convention or according to pre-defined information of the standard protocol.
  • the first configuration information may be configured by at least one of the following: system information, system information block, remaining minimum system information, other system information, and downlink. Control information, radio resource control information, or media access control layer control elements.
  • the first message may be sent by using a physical downlink shared channel or a physical downlink control channel.
  • the present application provides a signal transmission method, where the method may include: the terminal sends a second message to the network device, where the second message includes data bits corresponding to the terminal for calculating packet information; The terminal receives the first message sent by the network device, where the first message is sent by the network device according to the second message, and the first message is used to indicate the terminal. Whether the group in which the group is located is paged; if the group in which the terminal is located has a terminal being paged, the terminal sends an uplink signal to the network device.
  • the present application provides a signal transmission method, where the method may include: receiving, by a network device, a second message sent by a terminal, where the second message includes data bits corresponding to the terminal for calculating packet information; Determining, by the network device, the group in which the terminal is located according to the second message; the network device sending a first message to the terminal, where the first message is used to indicate whether a group in which the terminal is located has a terminal that is paged If the terminal in which the terminal is located has a terminal that is paged, the network device receives an uplink signal sent by the terminal; and the network device sends a paging message to the terminal according to the uplink signal.
  • the number of beams scanned by the network device can be reduced to reduce the time-frequency resource overhead of beam scanning during paging message transmission.
  • the manner of grouping the terminal may refer to the related description of the first aspect or the second aspect, and the manner in which the network device determines the group in which the terminal is located may also refer to the related aspect of the first aspect or the second aspect. Description, not repeated here.
  • the present application provides a signal transmission method, where the method may include: a terminal sending a second message to a network device, where the second message includes a truncated identifier or index of the terminal; and the terminal receives the network a paging message sent by the device, where the paging message is sent after the network device determines the truncation identifier or index of the terminal according to the second message, where the paging message includes truncation of at least one paged terminal An identifier or an index; if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index of the terminal and the index of the at least one paged terminal are the same, the terminal is The network device sends an uplink signal.
  • the present application provides a signal transmission method, where the method may include: receiving, by a network device, a second message sent by a terminal, where the second message includes a truncated identifier or an index of the terminal; Determining, by the second message, a truncation identifier or index of the terminal; the network device sending a paging message to the terminal, where the paging message includes a truncated identifier or index of at least one paged terminal;
  • the truncation identifier is the same as the truncation identifier of the at least one paged terminal, or the network device receives the uplink signal sent by the terminal if the index of the terminal and the index of the at least one paged terminal are the same.
  • the content of the paging message can be reduced by truncating the identifier or the index paging terminal, and the time-frequency resource overhead of the beam scanning during the paging message transmission can be reduced.
  • the truncation identifier of the terminal may refer to the related description of the third aspect or the fourth aspect, and details are not described herein.
  • the present application provides a terminal, which may include a plurality of functional modules for performing the method provided by the first aspect or any one of the possible embodiments of the first aspect.
  • the terminal may include: a receiving unit, a determining unit, and a sending unit.
  • the receiving unit is configured to receive first configuration information and a first message sent by the network device, where the first configuration information is used by the terminal to determine a group where the terminal is located, where the first message is used to indicate Whether the group in which the terminal is located is paged;
  • the determining unit is configured to determine, according to the first configuration information, a group in which the terminal is located; and the sending unit is configured to: if the group in which the terminal is located The terminal is paged to send an uplink signal to the network device.
  • the present application provides a network device, which may include multiple functional modules for performing the method provided by the second aspect or any one of the possible embodiments of the second aspect.
  • the network device may include: a receiving unit, and a sending unit.
  • the sending unit is configured to send the first configuration information and the first message to the terminal, where the first configuration information is used by the terminal to determine a group where the terminal is located, where the first message is used to indicate the Whether the terminal in which the terminal is located has a terminal being paged;
  • the receiving unit is configured to receive an uplink signal sent by the terminal if the terminal in which the terminal is located has a terminal being paged;
  • the sending unit is further configured to perform The uplink signal sends a paging message to the terminal.
  • the first configuration information includes at least one of: a number of data bits of the first message, a number of groups associated with the first message And indicating, in the first message, a number of data bits of each group, a number of data bits used to calculate the group information, a location of the data bits used to calculate the group information in the terminal identifier, and a number of paging occasions.
  • the group n in which the terminal is located is:
  • the UEID is an identifier of the terminal
  • K is a number of groups associated with the first message
  • N is a constant
  • N passes the number of paging occasions, the length of the discontinuous reception period, or the synchronization signal. At least one of the number of blocks is determined.
  • the present application provides a terminal, which may include a plurality of functional modules for respectively performing the method provided by the third aspect or any one of the possible embodiments of the third aspect.
  • the terminal may include: a receiving unit, a determining unit, and a sending unit.
  • the receiving unit is configured to receive first configuration information and a paging message sent by the network device, where the first configuration information is used to configure a truncation identifier or an index of the terminal, and the paging message includes at least one a truncating identifier or index of the paging terminal; the determining unit, configured to determine, according to the first configuration information, a truncation identifier or an index of the terminal; the sending unit, if the truncation identifier and the location of the terminal The truncated identifier of the at least one paged terminal is the same, or if the index of the terminal and the index of the at least one paged terminal are the same, an uplink signal is sent to the network device.
  • the present application provides a network device, which may include a plurality of functional modules for performing the method provided by any one of the possible aspects of the fourth aspect or the fourth aspect.
  • the network device may include: a sending unit, a receiving unit.
  • the sending unit is configured to send first configuration information and a paging message to the terminal, where the first configuration information is used to configure a truncation identifier or an index of the terminal, and the paging message includes at least one paged message.
  • the receiving unit is configured to: if the truncated identifier of the terminal is the same as the truncated identifier of the at least one paged terminal, or if the index of the terminal and the at least one is found The index of the calling terminal is the same, and receives the uplink signal sent by the terminal.
  • the first configuration information when the first configuration information is used to configure the truncation identifier of the terminal, includes at least one of the following: The number of data bits of the truncated identifier of the terminal, the location of the truncated identifier of the terminal in the terminal identifier, the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks; wherein the terminal The truncation identifier is a partial data bit identified by the terminal.
  • the location of the truncation identifier of the terminal is adjacent to the lowest log 2 N data bits of the terminal identifier; N is a constant, and N passes At least one of the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks is determined.
  • the first configuration information is configured by at least one of: system information, system information block, remaining minimum system information , other system information, downlink control information, radio resource control information or media access control layer control elements.
  • the present application provides a terminal, which may include a plurality of functional modules for performing the method provided by any one of the possible aspects of the fifth aspect or the fifth aspect.
  • the terminal may include: a receiving unit, and a sending unit.
  • the sending unit is configured to send a second message to the network device, where the second message includes data bits corresponding to the terminal for calculating packet information
  • the receiving unit is configured to receive, send, by the network device
  • the first message the first message is sent by the network device after determining the group in which the terminal is located according to the second message, where the first message is used to indicate whether the group in which the terminal is located has a terminal
  • the sending unit is further configured to send an uplink signal to the network device if a terminal in which the terminal is located has a terminal that is paged.
  • the present application provides a network device, which may include a plurality of functional modules for performing the method provided by any one of the possible aspects of the sixth aspect or the sixth aspect.
  • the network device may include: a receiving unit, a determining unit, and a sending unit.
  • the receiving unit is configured to receive a second message that is sent by the terminal, where the second message includes data bits that are used by the terminal to calculate packet information, and the determining unit is configured to use, according to the second message, Determining a group in which the terminal is located; the sending unit, configured to send a first message to the terminal, where the first message is used to indicate whether a group in which the terminal is located has a terminal being paged; the receiving unit, The method is further configured to: if the terminal in which the terminal is located, the terminal is paged, and receive an uplink signal sent by the terminal; the sending unit is further configured to send a paging message to the terminal according to the uplink signal.
  • the present application provides a terminal, which may include a plurality of functional modules for performing the method provided by any one of the seventh aspect or the seventh aspect.
  • the terminal may include: a receiving unit, and a sending unit.
  • the sending unit is configured to send a second message to the network device, where the second message includes a truncated identifier or an index of the terminal
  • the receiving unit is configured to receive a paging message sent by the network device, where The paging message is sent after the network device determines the truncation identifier or index of the terminal according to the second message, where the paging message includes a truncated identifier or index of at least one paged terminal;
  • the unit is further configured to: if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index of the terminal and the index of the at least one paged terminal are the same, The network device sends an uplink signal.
  • the present application provides a network device, which may include a plurality of functional modules for performing the method provided by any one of the possible aspects of the eighth aspect or the eighth aspect.
  • the network device may include: a receiving unit, a determining unit, and a sending unit.
  • the receiving unit is configured to receive a second message sent by the terminal, where the second message includes a truncated identifier or an index of the terminal, and the determining unit is configured to determine, according to the second message, the terminal
  • the sending unit is configured to send a paging message to the terminal, where the paging message includes a truncated identifier or index of at least one paged terminal; the receiving unit is further configured to:
  • the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index of the terminal and the index of the at least one paged terminal are the same, the uplink signal sent by the terminal is received.
  • the second message is sent when the terminal initiates an attach request.
  • the second message may be sent by at least one of: system information, system information block, remaining minimum system information, other system information, downlink control information, radio resource control information, or media access control layer control element.
  • the present application provides a terminal for performing the signal transmission method described in the first aspect or the third aspect or the fifth aspect or the seventh aspect.
  • the terminal can include a memory and a processor, transceiver coupled to the memory, wherein the transceiver is for communicating with other communication devices, such as network devices.
  • the memory is used to store implementation code of the signal transmission method described in the first aspect or the third aspect or the fifth aspect or the seventh aspect
  • the processor is configured to execute program code stored in the memory, that is, perform the first aspect Or the method provided by the third aspect or the fifth aspect or the seventh aspect, or the method provided by any one of the first aspect or the third aspect or the fifth aspect or the seventh aspect possible embodiment.
  • the present application provides a network device for performing the signal transmission method described in the second aspect or the fourth aspect or the sixth aspect or the eighth aspect.
  • the terminal can include a memory and a processor, transceiver coupled to the memory, wherein the transceiver is for communicating with other communication devices, such as terminals.
  • the memory is used to store implementation code of the signal transmission method described in the second aspect or the fourth aspect or the sixth aspect or the eighth aspect
  • the processor is configured to execute the program code stored in the memory, that is, perform the second aspect Or the method provided by the fourth aspect or the sixth aspect or the eighth aspect, or the method provided by any one of the second aspect or the fourth aspect or the sixth aspect or the eighth aspect possible embodiment.
  • a communication system comprising: a terminal and a network device. among them:
  • the terminal may be the terminal described in the above ninth or eleventh aspect or the thirteenth aspect or the fifteenth aspect, and the network device may be the above tenth or twelfth aspect or the fourteenth aspect or the The network device described in the sixteenth aspect.
  • the terminal may also be the terminal described in the above seventeenth aspect, and the network device may also be the network device described in the above eighteenth aspect.
  • the present application is also an embodiment of a communication device including a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the program to cause the communication device to implement the above The steps performed by the method.
  • the embodiment of the present application further provides a computer readable medium for storing a computer program, when the computer program is executed, causing a method in any of the above possible implementations to be executed.
  • the embodiment of the present application further provides a computer program product comprising instructions, when executed on a computer, causing the computer to perform the method in any of the above possible implementation manners.
  • FIG. 1 is a schematic structural diagram of a wireless communication system according to an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a communication method according to an embodiment of the present application.
  • FIG. 3 is a schematic flowchart diagram of another communication method according to an embodiment of the present application.
  • FIG. 4 is a schematic flowchart diagram of another communication method according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a possible number of data bits for calculating packet information and a location in a terminal identifier provided by the present application;
  • FIG. 6 is a schematic diagram of the number of data bits of a possible truncation identifier and the location in the terminal identifier provided by the present application;
  • FIGS. 7A-7G are schematic flowcharts of a signal transmission method provided by the present application.
  • 8A-8D are functional block diagrams of a wireless communication system, a terminal, and a network device provided by the present application.
  • FIG. 9 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • the terminal device in the present application is a device having an infinite communication function, and may be a handheld device having a wireless communication function, an in-vehicle device, a wearable device, a computing device, or other processing device connected to a wireless modem.
  • Terminal devices in different networks may be called different names, such as: user equipment, access terminals, subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, remote terminals, mobile devices, user terminals, terminals, wireless communications.
  • Device, user agent or user device cellular phone, cordless phone, Session Initiation Protocol (SIP) phone, Wireless Local Loop (WLL) station, Personal Digital Assistant (PDA), Terminal equipment in a 5G network or a future evolution network.
  • SIP Session Initiation Protocol
  • WLL Wireless Local Loop
  • PDA Personal Digital Assistant
  • the base station in this application may also be referred to as a base station device, and is a device deployed in a wireless access network to provide wireless communication functions, and may be Global System of Mobile communication (GSM) or code division multiple access.
  • GSM Global System of Mobile communication
  • BTS Base Transceiver Station
  • CDMA Code Division Multiple Access
  • NodeB, NB for short in Wideband Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • It may be an evolved base station (Evolutional Node B, eNB or eNodeB) in Long Term Evolution (LTE), or a relay station or an access point, a transmission node or a transmission and reception point in a new air interface (NR) system.
  • NR new air interface
  • TRP Transmission point
  • TP next generation Node B
  • Wi-Fi Wireless-Fidelity
  • wireless backhaul node small station, micro station, or the fifth generation Base stations and the like in the 5th Generation Mobile Communication (5G) network are not limited herein.
  • a beam can be understood as a spatial resource and can refer to a transmit or receive precoding vector with energy transmission directivity.
  • the transmitting or receiving precoding vector can be identified by index information.
  • the energy transmission directivity may be that the signal received by the precoding process after receiving the precoding vector has a good receiving power in a certain spatial position, such as satisfying the receiving demodulation signal to noise ratio, etc.; Directivity may also mean that the same signals transmitted from different spatial locations are received by the precoding vector with different received power.
  • the same communication device may have different precoding vectors, and different devices may also have different precoding vectors, that is, corresponding to different beams.
  • one communication device can use one or more of a plurality of different precoding vectors at the same time, ie, one or more beams can be formed at the same time.
  • the information of the beam can be identified by the index information.
  • the index information may be corresponding to a resource identifier of a user equipment (UE), for example, the index information may correspond to a configured channel status information reference signal (CSI-RS).
  • CSI-RS channel status information reference signal
  • the ID or resource may also correspond to the ID or resource of the configured Sounding Reference Signal (SRS).
  • the index information may also be index information of a signal or channel display or implicit bearer carried by the beam, for example, the index information may be a synchronization signal sent by a beam or a broadcast channel indicating the beam. Index information.
  • the beam pair may include a transmit beam at the transmitting end and a receive beam at the receiving end, or also referred to as an uplink beam or a downlink beam.
  • the beam pair may include a gNB Tx beam transmission beam or a UE Rx beam reception beam, or a UE Tx beam transmission beam or a gNB Rx beam reception beam, where the transmission beam may also be understood as a transmission beam.
  • the beam can be a wide beam, or a narrow beam, or other type of beam.
  • the beamforming technique can be beamforming techniques or other technical means.
  • the beamforming technology can be specifically digital beamforming technology, analog beamforming technology, and hybrid digital/analog beamforming technology. Different beams can be considered as different resources. The same information or different information can be transmitted through different beams. Alternatively, multiple beams having the same or similar communication characteristics can be considered as one beam.
  • One beam may include one or more antenna ports for transmitting a data channel, a control channel, a sounding signal, etc., for example, the transmitting beam may be a signal intensity distribution formed in different directions of the space after the signal is transmitted through the antenna.
  • the receive beam may refer to a signal strength distribution of wireless signals received from the antenna in different directions in space.
  • One or more antenna ports forming one beam can also be considered as one antenna port set.
  • the beam can also be a spatial filter.
  • the transmission of the channel is in units of radio frames, and one radio frame includes 10 subframes, each subframe has a length of 1 millisecond (ms), and each subframe includes two subframes. Slot, each slot is 0.5ms. The number of symbols included in each slot is related to the length of the CP (cyclic prefix) in the subframe. If the CP is a normal (normal) CP, each slot includes 7 symbols, and each subframe is composed of 14 symbols. For example, each subframe has a sequence number of #0, #1, #2, #3, #4, respectively. , #5, #6, #7, #8, #9, #10, #11, #12, #13 symbol composition.
  • each slot includes 6 symbols, and each subframe is composed of 12 symbols.
  • each subframe has a sequence number of #0, #1, #2, #3, #4,# 5, #6, #7, #8, #9, #10, #11 symbol composition.
  • the downlink symbols are called orthogonal frequency division multiplexing (OFDM) symbols.
  • OFDM orthogonal frequency division multiplexing
  • a resource element is the smallest unit in the time-frequency domain, and is uniquely identified by an index pair (k, l), where k is a subcarrier index and l is a symbol index.
  • a communication resource may also be simply referred to as a resource.
  • Communication resources can be used to transmit signals.
  • the types of communication resources may be spatial resources, time domain resources, and frequency domain resources.
  • the types of communication resources may be beams, ports, and the like.
  • a collection of different kinds of communication resources is also a communication resource.
  • a time-frequency resource block (including a time domain resource and a frequency domain resource) is a communication resource, and a combination of a beam and a port is also a communication resource.
  • first and second in this application are used for descriptive purposes only, and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining “first” and “second” may include one or more of the features either explicitly or implicitly.
  • the base station pages 4 times in each frame, each time 16 users, each frame is 10ms, so the base station can call up to 6400 users per second.
  • the maximum number of SS blocks in NR is 64, and the maximum number of POs in each frame is 4.
  • the data of one beam occupies at least 2 OFDM symbols, the first symbol is PDCCH, and the second is PDSCH. .
  • the scanning resources occupied by the four POs are 512 OFDM symbols. For a subcarrier spacing of 120 kHz, one frame has a total of 1120 symbols, and 45% (512/1120) of paging resources are occupied. It is a huge overhead for limited paging resources.
  • the occupation of paging resources by the total resources can be reduced.
  • the increase in the number of terminal device identifications will increase the bandwidth within the PO, and the terminal device searching for the terminal device identifier within a relatively large bandwidth increases the overhead of power consumption.
  • FIG. 1 shows a wireless communication system provided by an embodiment of the present application.
  • the wireless communication system can operate in a high frequency band, not limited to an LTE system, and can also be a 5G system, an NR system, a machine to machine (M2M) system, or the like.
  • wireless communication system 100 can include one or more network devices 101, one or more terminals 103. among them:
  • the network device 101 may be an access network device, such as a base station, and the base station may be used to communicate with one or more terminals, or may be used to communicate with one or more base stations having partial terminal functions (such as a macro base station and a micro base station). , such as access points, communication between).
  • Network device 101 can also be a core network device that can be used to communicate with a base station or terminal 103.
  • the core network device may be a mobility management entity (MME), and a mobility management device in the future 5G.
  • MME mobility management entity
  • Terminals 103 may be distributed throughout wireless communication system 100, either stationary or mobile.
  • the wireless communication system 100 is a multi-beam communication system. among them:
  • the network device 101 can be configured with a large-scale antenna array and utilize beamforming techniques to control the antenna array to form beams of different orientations.
  • the terminal when a terminal is in a certain determined position, corresponding to the transmission range of one or more pointing beams, the terminal can receive the signal transmitted by using the one or more pointing beams at the determined position. .
  • the network device 101 since the network device 101 does not know which location the paged terminal is in, the network device 101 needs to use a plurality of different pointing beams to send a paging message to cover the entire cell 107, ensuring that it is sought.
  • the calling terminal receives the paging message, and the process may be referred to as Beam scanning.
  • the network device 101 may configure the number of users of one PO page or the number of terminal identification (UE identification).
  • the terminal device identifier may be all of the UE ID, or may be part of the UE ID, or may be an index-based UE ID.
  • the network device 101 may configure the number of users or the number of UE IDs of one PO page in at least one of system information, RRC signaling, MAC-CE signaling, RMSI, or system information block SIB through network configuration information.
  • the maximum number of UE IDs of the PO may be related to the number of SS blocks, related to the paging mechanism, and related to the SCS.
  • the maximum number of UE IDs of the PO is related to the paging mechanism, for example, if the paging mechanism is the beam scanning mode, the maximum number of UE IDs may be 32 or 64; if the paging mechanism is a wide beam or an omnidirectional beam mode, the maximum number of UE IDs It may be 16; if the paging mechanism is in LTE mode, the maximum number of UE IDs may be 16.
  • the maximum number of UE IDs of the PO is related to the frequency band, if the frequency band is higher than 6 GHz, the maximum number of UE IDs may be 64 or 32; if the frequency band is 3 GHz to 6 GHz, the maximum number of UE IDs may be 32 or 64; if the frequency band is lower than 3 GHz
  • the maximum number of UE IDs can be 16 or 32.
  • the transmission bandwidth of the paging message is higher than 100 M, and the maximum number of UE IDs may be 64 or 32; if the transmission is performed under subcarriers of 120 kHz, The bandwidth is less than 100M, and the maximum number of UE IDs can be 16 or 32.
  • the maximum number of UE IDs may be 64; if the number of base stations in the TA area is greater than 8 and less than 32, the maximum number of UE IDs may be 32. If the number of base stations in the TA area is less than 8, the maximum number of UE IDs may be 16.
  • the network device 101 can configure the number of terminal devices or the number of UE IDs for one PO paging.
  • the terminal device 103 can determine the PO of the terminal device based on at least one of the values of X and Y, and the UE ID.
  • the method for the network device 101 to determine the PO may be determined by querying a pre-configured form.
  • the network device 101 can also configure the total number of terminal devices that can be paged at most.
  • multiple PDSCHs may be scheduled by using one PDCCH, or one PDSCH may be scheduled by one PDCCH.
  • the number of identifications of the terminal devices 103 increases, which in turn increases the bandwidth within the PO.
  • the terminal device 103 searches for the terminal device identity within a relatively large bandwidth to increase the overhead of power consumption.
  • the embodiment of the present invention provides a communication method and device, so as to reduce the problem that the terminal device has a large power consumption when searching for the terminal device identifier.
  • FIG. 2 is a schematic flowchart diagram of a communication method according to an embodiment of the present application. As shown in FIG. 2, the method includes:
  • Step 100 When the network device indicates the information of the physical downlink shared channel (PDSCH) time-frequency resource block to the terminal device, the network device sends the DCI to the terminal device, where the DCI includes the PDSCH time-frequency resource.
  • Information of the block the first PDSCH time-frequency resource block includes one or more second PDSCH time-frequency resource blocks, and each second PDSCH time-frequency resource block provides paging information of at least one terminal device, that is, each second PDSCH
  • the time-frequency resource block maps an identifier of at least one terminal device;
  • the network device may send the DCI to the terminal device by using a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the PDCCH is sent by the network device to the terminal device, and is used to send downlink scheduling information to the terminal device, so that the terminal device receives the PDSCH.
  • the DCI specifies the resources occupied by the PDSCH, the modulation and coding scheme (MCS), the information related to the initial transmission or retransmission, the layer, and the precoding.
  • MCS modulation and coding scheme
  • the network device can configure the content of the DCI before sending it to the terminal device.
  • the information of the first PDSCH time-frequency resource block includes, but is not limited to, a subcarrier position, a symbol position, a demodulation method, and the like of the first PDSCH time-frequency resource block.
  • the network device may also allocate the identifier of the terminal device scheduled by the first PDSCH time-frequency resource block to 10, and determine the packet according to the result of the redundancy.
  • the result of the remainder is a group of 0-3, the result of the remainder is a group of 4-7, and the result of the remainder is a group of 8-9. It should be noted that the remainder of the present invention is only an example. In the specific implementation, other values may be used.
  • the size of each second PDSCH time-frequency resource block may be the same.
  • the size of each of the second PDSCH time-frequency resource blocks may also be different. The specific implementation manner is not limited in this embodiment of the present application.
  • the MSC of each second PDSCH time-frequency resource block may be the same. In this way, the overhead of PDCCH resources caused by the indication MSC can be reduced.
  • the number of the one or more second PDSCH time-frequency resource blocks may be sent by the network device to the terminal device by sending DCI or network configuration information, where the terminal device indicates according to the received DCI or network configuration information.
  • the number of the second PDSCH time-frequency resource blocks determines the number of the second PDSCH time-frequency resource blocks.
  • the network configuration information includes, but is not limited to, at least one of system information, RRC signaling, MAC-CE signaling, RMSI, SIB1, or system information blocks.
  • the number of the second PDSCH time-frequency resource blocks scheduled by the DCI sent by the network device may also be determined in a pre-configured manner.
  • the number of terminal device identifiers in each second PDSCH time-frequency resource block may also be included in the DCI.
  • the allocation of the resource block field can be used instead. Since the number of bits occupied by the resource block field is large and the number of bits of the terminal device identifier is small, the bit overhead of the DCI field can be saved.
  • the network device includes but is not limited to: a base station, a transmission reception point (TRP), or a relay.
  • TRP transmission reception point
  • relay a relay
  • Step 102 The terminal device receives the DCI sent by the network device, and determines a second PDSCH time-frequency resource block according to the DCI.
  • the second PDSCH time-frequency resource block is a PDSCH time-frequency resource block that needs to be demodulated.
  • the determining, by the terminal device, the second PDSCH time-frequency resource block according to its own identifier includes but is not limited to:
  • the number or location of the second PDSCH time-frequency resource block corresponding to its own identity is obtained by allocating all or part of the data bits to the terminal device.
  • the value of N is the value of N when the first PDSCH time-frequency resource block is divided into time-frequency resource blocks of the N second PDSCHs.
  • Step 104 The terminal device demodulates the second PDSCH time-frequency resource block determined in step 102.
  • the terminal device first determines a second PDSCH time-frequency resource block corresponding to the identity, and demodulates the determined second PDSCH time-frequency resource block. Compared with demodulating the first PDSCH time-frequency resource block that is larger than the second PDSCH time-frequency resource block, the power consumption overhead of the terminal device due to demodulation of the PDSCH time-frequency resource block is reduced.
  • the method may further include: the terminal device, according to the demodulated second PDSCH time-frequency resource block, searching whether the second identifier of the second PDSCH is the demodulated time resource. In the block. In this way, the terminal device can know whether or not it is paged.
  • the network device may also indicate information about a PDSCH time-frequency resource block size scheduled by the terminal device.
  • a network device scheduling two PDSCH time-frequency resource blocks as an example. It can be understood that the implementation manner of the network device scheduling N (N is a positive integer greater than or equal to 1) PDSCH time-frequency resource blocks is similar to the implementation manner described below, and details are not described herein again.
  • FIG. 3 is a schematic flowchart diagram of a communication method according to an embodiment of the present application. As shown in FIG. 3, the method includes:
  • Step 200 When the network device indicates the information of the PDSCH time-frequency resource block to the terminal device, the network device sends the DCI by using the PDCCH, where the DCI includes the information of the first PDSCH time-frequency resource block and the first PDSCH time-frequency resource.
  • the DCI further includes an MCS of the second PDSCH time-frequency resource block.
  • the network device can configure the content of the DCI before sending it to the terminal device.
  • the information of the first PDSCH time-frequency resource block includes, but is not limited to, a subcarrier position, a symbol position, a demodulation method, and the like of the first PDSCH time-frequency resource block.
  • the information of the second PDSCH time-frequency resource block includes, but is not limited to, a subcarrier position, a symbol position, a demodulation method, and the like of the first PDSCH time-frequency resource block.
  • the DCI that is sent by the network device through the PDCCH may also include only the information of the second PDSCH time-frequency resource block and the information of the third PDSCH time-frequency resource block.
  • the size of the second PDSCH time-frequency resource block and the third PDSCH time-frequency resource block may be the same.
  • the sizes of the second PDSCH time-frequency resource block and the third PDSCH time-frequency resource block may also be different.
  • the embodiment of the present application does not limit a specific implementation manner.
  • the second PDSCH time-frequency resource block and the third PDSCH time-frequency resource block have the same modulation and coding strategy.
  • the second PDSCH time-frequency resource block is the same as the MCS of the third PDSCH time-frequency resource block, and the overhead of the PDCCH resource caused by the indication MSC can be reduced.
  • the DCI may further include a number of terminal device identifiers in each second PDSCH time-frequency resource block, which may be used to replace the allocation of resource block fields, and save the overhead of the DCI field.
  • the network device includes but is not limited to: a base station, a TRP, or a relay.
  • Step 202 The terminal device receives the DCI sent by the network device, and determines a PDSCH time-frequency resource block according to the identity of the PDSCH.
  • the size of the first PDSCH time-frequency resource block and the size of the second PDSCH time-frequency resource block may be acquired.
  • the terminal device may further acquire the size of the third PDSCH time-frequency resource block according to the size of the first PDSCH time-frequency resource block and the size of the second PDSCH time-frequency resource block. For example, the terminal device obtains the size of the third PDSCH time-frequency resource block by subtracting the size of the second PDSCH time-frequency resource block from the size of the first PDSCH time-frequency resource block.
  • the DCS received by the terminal device may further include the second PDSCH time-frequency resource block and the MCS of the third PDSCH time-frequency resource block.
  • the terminal device may search for the location of the PDSCH time-frequency resource block where the identity is located according to the identifier of the terminal.
  • the terminal device determines that the second PDSCH time-frequency resource block corresponding to the identity of the terminal device includes but is not limited to:
  • the number or location of the second PDSCH time-frequency resource block corresponding to its own identity is obtained by allocating all or part of the data bits to the terminal device.
  • the N may be any positive integer.
  • the PDSCH time-frequency resource block corresponding to the identifier of the terminal device may be the second PDSCH time-frequency resource block or the third PDSCH time-frequency resource block.
  • the second PDSCH time-frequency resource block and the third PDSCH time-frequency resource block may be independent coding processes.
  • the size of the second PDSCH time-frequency resource block and the third PDSCH time-frequency resource block may be the same or different.
  • Step 204 The terminal device demodulates the PDSCH time-frequency resource block determined in step 202.
  • the terminal device first determines a PDSCH time-frequency resource block (a second PDSCH time-frequency resource block or a third PDSCH time-frequency resource block) corresponding to the identifier, and determines the PDSCH time-frequency resource block determined by demodulation. Whether its own identity is in the determined PDSCH time-frequency resource block. Compared with the demodulation being greater than the first PDSCH time-frequency resource block, the power consumption overhead of the terminal device due to demodulation of the PDSCH time-frequency resource block is reduced.
  • the method may further include: the terminal device, according to the demodulated PDSCH time-frequency resource block, searching whether the identifier of the PDSCH is in the information carried by the demodulated PDSCH time-frequency resource block. In this way, the terminal device can know whether or not it is paged.
  • FIG. 4 is a schematic flowchart diagram of a communication method according to an embodiment of the present application. As shown in FIG. 4, the method includes:
  • Step 300 When the network device indicates the information of the PDSCH time-frequency resource block to the terminal device, the network device schedules, by using one PDCCH, N PDSCH time-frequency resource blocks, where the DCI sent by the network device includes each PDSCH time-frequency resource. The information of the block; or the network device schedules N PDSCH time-frequency resource blocks by using N PDCCHs, where the network device sends N DCIs, and each DCI includes information of one PDSCH time-frequency resource block;
  • the N may be any positive integer.
  • the value of the N may be sent by the network device to the terminal device by sending the DCI and the network configuration information, and the terminal device determines the PDSCH time-frequency resource according to the value of the N in the received DCI or the network configuration information.
  • the network configuration information includes, but is not limited to, at least one of system information, RRC signaling, MAC-CE signaling, RMSI, SIB1, or system information blocks.
  • the number of PDSCH time-frequency resource blocks scheduled by the DCI transmitted by the network device may also be determined in a pre-configured manner.
  • the size of the PDSCH time-frequency resource block and the MCS may be included in the foregoing DCI.
  • the size of each PDSCH time-frequency resource block may be the same.
  • the size of each of the PDSCH time-frequency resource blocks may be different. The specific implementation manner is not limited in this embodiment of the present application.
  • the MSC of each PDSCH time-frequency resource block may be the same. In this way, the overhead of PDCCH resources caused by the indication MSC can be reduced.
  • the foregoing DCI may further include packet index information, a PO index, or a PDSCH index of the terminal device identifier.
  • the number of terminal device identifiers in each PDSCH time-frequency resource block may also be included in the DCI.
  • the allocation of the resource block field can be used instead. Since the number of bits occupied by the resource block field is large and the number of bits of the terminal device identifier is small, the bit overhead of the DCI field can be saved.
  • the network device includes but is not limited to: a base station, a TRP, or a relay.
  • Step 302 The terminal device receives the DCI sent by the network device, and determines a PDSCH time-frequency resource block according to the identity of the terminal.
  • the terminal device determines that its own identity determines that the PDSCH time-frequency resource block corresponding to the identity of the terminal includes, but is not limited to:
  • the packet information, the resource location information, and the MCS where the identity of the terminal device is located are searched according to the identity of the terminal device to determine a PDSCH time-frequency resource block corresponding to the identity of the terminal device.
  • the PO index, the resource location information, and the MCS where the own identifier is located are searched according to the identifier of the terminal device, and the PDSCH time-frequency resource block corresponding to the identifier is determined.
  • the terminal device spares its own identity to the number of packets or spares the part identified by itself to the number of PDSCH time-frequency resource blocks, and compares the obtained value with the PO index or the packet index in the DCI to obtain and The position of the same PDSCH index of the obtained value or the PDSCH resource block of the PO index is taken to determine a PDSCH time-frequency resource block.
  • Step 304 The terminal device demodulates the PDSCH time-frequency resource block determined in step 302.
  • the terminal device determines, according to the PDSCH time-frequency resource block corresponding to the identity identifier in the DCI, and determines whether the identity of the PDSCH time-frequency resource block is in the determined PDSCH time-frequency resource block by demodulating the determined PDSCH time-frequency resource block. Since the demodulation is performed only for the time-frequency resource block corresponding to the self-identification, the power consumption overhead of the terminal device due to demodulation of the PDSCH time-frequency resource block is reduced relative to the demodulation of the PDSCH time-frequency resource block corresponding to the self-identification.
  • the method may further include: the terminal device searching, according to the demodulated PDSCH time-frequency resource block, whether the identifier of the PDSCH is carried in the information carried by the PDSCH.
  • the N different PDCCHs may be scrambled by using M different P-RNTIs.
  • different packet information may be indicated by different P-RNTIs.
  • the information of different POs may be indicated by different P-RNTIs.
  • the multiple PDs or the PDSCHs of the multiple packets may be combined, and one PDCCH is used for scheduling, and multiple POs or multiples are used.
  • UE packets are indicated using the same P-RNTI.
  • N may be configured in the system information, for example, by radio resource control (RRC) signaling or MAC-CE signaling, or may be configured in the remaining RMSI or SIB1. It may also be configured in the PDCCH or the protocol is specified according to certain rules.
  • RRC radio resource control
  • the network device needs to configure the control resource location of the paging message corresponding to each PO.
  • there may be multiple POs in a SS burst set period or a PBCH period in a synchronization signal segment set and there may be multiple POs in one RMSI period or one SIB information period.
  • the time-frequency resource of the control resource that sends the paging message is configured by the base station.
  • the period of the configuration information of the paging message may not coincide with the transmission period of the paging information. Therefore, it is necessary to configure time-frequency resources of control resources of a plurality of paging messages in the configuration information of the paging message.
  • the control resources of the paging message include, but are not limited to, a physical downlink control channel (PDCCH) of the PO, downlink control information (DCI) of the PO, or a control resource set (CORESET) of the PO.
  • the configuration information of the paging message refers to information of a control resource for configuring a paging message, including but not limited to: RMSI, PBCH, DCI, RRC or media MAC-CE.
  • multiple paging messages may be grouped into one group.
  • Control resources for paging messages within a group are scheduled or configured together. For example, it can be implemented by configuring a large time-frequency resource block by the configuration information of the paging message.
  • the network device may send configuration information of the paging message to the terminal device, where the configuration information includes information about a control resource block of the paging message, and the time when the one control resource block is controlled by the paging message corresponding to the N POs Frequency resource composition; the N is a positive integer greater than or equal to 1;
  • the network device sends a control resource of the paging message to the terminal device based on the configuration information.
  • the N may also be a positive integer greater than or equal to 2.
  • the terminal device receives the configuration information sent by the network device, and receives a control resource of a paging message sent by the network device.
  • the configured time-frequency resource block may be further divided into K equal parts.
  • K is a positive integer greater than or equal to 1.
  • the value of K can be the same as the number of paging messages.
  • the value of K may also be less than the number of paging messages, such that each aliquot of time-frequency resources may include control resources for one or more paging messages.
  • the number of paging messages in each paging message group may be configured by a network device (for example, a base station), or may be pre-agreed by the terminal and the network device.
  • a network device for example, a base station
  • the K-equal time-frequency resources may be prioritized in time order, or may be placed or distributed in a frequency-sequence-first manner.
  • the order of the time-frequency resources of the K equal parts is not limited, and the time-frequency resources of the K equal parts may be sequential or reversed, which may be pre-agreed by the terminal and the network device. It can also be pre-configured by the protocol.
  • the number of time-frequency resource shares may be configured by a network device (for example, a base station), or may be pre-agreed by the terminal and the network device.
  • the number of time-frequency resource shares ie, the value of the K may also be implicitly indicated according to the size of the common search space resource or the configured resource size.
  • different paging messages in each group may use the same DCI format, or different DCI formats may be used.
  • DCI formats there may be the same number of bits.
  • the number of paging messages in different groups may be equal or different.
  • control resources of the paging messages corresponding to the multiple POs may be located in a common search space or in a control resource set.
  • a control resource of a paging message corresponding to multiple POs may be quasi-co-located (QCL) or associated with an SS block, or The QCL is on a specific reference signal.
  • the control resources of the paging messages corresponding to the plurality of POs may also be QCL to different SS blocks or QCLs to different specific reference signals.
  • the terminal device After the terminal device enters a DRX cycle, for example, after the terminal device wakes up from the DRX cycle, it may first receive configuration information of the paging message sent by the base station, and determine the PO group where the terminal device is located by using the terminal device identifier (UE ID), and then The location of the control resource of the PO corresponding to the terminal device in the PO group is determined by using the UE ID and the number N of the PO group, and the location of the paging information about the terminal device is determined by demodulating the control resource.
  • UE ID terminal device identifier
  • each 8 POs are configured as two groups, each The group uses four POs as an example to describe the manner in which the terminal device determines the control information and/or the paging message.
  • UE ID device identifier
  • the calculation of the PO location of the terminal device is related to the period of the configuration information, that is, the terminal device can calculate the location of the PO based on the period of the configuration information.
  • the configuration information period may be an SS burst set period, an RMSI period, an RRC period, a MAC-CE period, or a SIB period.
  • the duration of the PO is related to the number of SS blocks in an SS burst set or the actual number in the SS block, and the number of SS blocks refers to the number of SS blocks in which the repeated SS blocks are removed.
  • the duration of the PO may also be related to the number of RMSIs in one RMSI period or to the number of system information blocks (e.g., SIB1) within a certain system information block period.
  • the duration of the PO refers to the number of slots in a PO, or the number of subframes, or the number of mini-slots. The duration may be implicitly indicated by the number of SS blocks, the number of RMSIs, or the number of SIBs.
  • the duration of the PO may also be an integer multiple or a fractional multiple of the number of SS blocks, the number of RMSIs, or the number of SIBs. For example, there are 16 SS blocks in the SS burst set.
  • the duration of the PO can be 16 subframes or 16 slot slots, that is, the number of subframes of the duration of the PO or the number of slots of the duration or the minislot (mini- The number of slots is a multiple of the number of SS blocks in the SS burst set, or a multiple of the number of RMSIs in the RMSI period, and may be a multiple of other specific values, for example, the specific value is configured by the network device, and the embodiment of the present application The implementation of the specific multiple is not limited.
  • a multiple of the number of SS blocks in the SS burst set may be configured by RMSI, PBCH, RRC, MAC-CE, or SIB.
  • RMSI Radio Resource Management
  • PBCH Physical Broadcast Channel
  • RRC Radio Resource Control
  • MAC-CE Network Control Component Interconnect Express
  • SIB Interference Block
  • the duration of the PO is 32 subframes or 32 slots.
  • some subframes, slots, or mini-slots may be skipped, for example, skipping uplink and downlink switching subframes, and the like.
  • the configuration information configures a single QCL or associated paging information on different SS blocks or on different specific reference signals, and controls a single continuation of resource information or paging information (which can remove skipped subframes, slots, or mini-slots)
  • the time period multiplied by the number of SS blocks or the number of RMSIs, gives the duration of the total PO.
  • different SS blocks in the SS burst set may be grouped, so different paging messages in one PO may also be grouped, and paging messages in different groups may have different configurations.
  • the QCL is associated with paging information on different SS blocks or on different specific reference signals, and the control resource information or paging information may be in an equally spaced time period (the skipped subframe, slot, or mini- may be removed).
  • the slot is selected for the duration of the transmission.
  • the duration of the PO is equally divided into time segments of the number of paging messages, and one paging message is sent during each paging time period. For example, if the number of SS blocks is doubled, the QCL or the paging message associated with the first SS block may be sent in the first two slots or the first two subframes; the QCL is associated with the second SS block.
  • the paging message can be sent on the 3rd or 4th subframe or slot.
  • the time offset of the initial subframe or the initial slot or mini-slot may be configured by using RMSI, PBCH, RRC, MAC-CE, or SIB, etc., with respect to each equal interval period. It is also possible to pass a blind check, for example, in the case of twice the number of SS blocks, the QCL or the paging message associated with the first SS block can be sent on the first Slot with a time offset of 0; QCL or association The paging message to the second SS block can be sent on the fourth slot with a time offset of 1, which is the time offset relative to the third slot.
  • the time offset of the third slot may be the time offset of the first slot in the second equally spaced time period.
  • the wireless communication system 100 shown in FIG. 1 is a multi-beam communication system.
  • the network device 101 can be configured with a large-scale antenna array and utilize beamforming techniques to control the antenna array to form beams of different orientations. It can be understood that when a terminal is in a certain determined position, corresponding to the transmission range of one or more pointing beams, the terminal can receive the signal transmitted by using the one or more pointing beams at the determined position. .
  • the network device 101 since the network device 101 does not know which location the paged terminal is in, the network device 101 needs to use a plurality of different pointing beams to send a paging message to cover the entire cell 107, ensuring that it is sought.
  • the calling terminal receives the paging message, and the process may be referred to as Beam scanning.
  • the beam scanning covering the entire cell causes a large overhead of resources.
  • the signal transmission method provided by the embodiment of the present application is described below to solve the problem of large resource overhead caused by full beam scanning.
  • the network device sends a paging indication to a plurality of terminals
  • the multiple terminals may be multiple terminals in a tracking area identity (TA) range, or may be a network device jurisdiction.
  • the plurality of terminals in the terminal may also be a plurality of terminals in a paging occasion (PO).
  • the plurality of terminals that receive the paging indication send the uplink signal to the network device, and the network device can learn the beam where the multiple terminals are located by using the uplink signal, and the network device utilizes the plurality of terminals because the paging terminal is included in the multiple terminals.
  • the beam in which the terminal is located performs beam scanning to send a paging message, so that the paged terminal receives the paging message.
  • the number of beams scanned by the network device is greatly reduced compared with the total beam corresponding to the network device, which saves the overhead of beam scanning.
  • the paging indication may be configured by a network device, which is described in detail below.
  • a plurality of terminals may be grouped, and the multiple terminals may be multiple terminals within a tracking area identity (TA) range, or may be multiple terminals within the jurisdiction of a network device, and may also be It is a multiple terminal within a paging occasion.
  • the network device may notify the group in which the plurality of terminals are paged by the paging indicator. If the group in which the terminal is located includes the paged terminal, the terminal sends an uplink signal to the network device, and the network device can learn by the uplink signal. Paging the beam of all the terminals in the group where the terminal is located, and using the beam to perform beam scanning to send a paging message, to ensure that the paged terminal receives the paging message.
  • TA tracking area identity
  • the size of the paging indicator ie, the number of data bits occupied by the paging indication
  • the number of groups associated with the paging indication ie, the number of groups of multiple terminals in the present application
  • the paging indication can be flexibly configured by the network device through configuration information.
  • the paging indication may be referred to as a first message, and the configuration information may be referred to as first configuration information.
  • DRX discontinuous reception
  • SS block synchronization signal block
  • the DRX period may be the default DRX period, that is, the DRX period of all or some of the terminals in a cell is the same, and may be configured by the network device; the DRX period may also be a specific DRX period reported by each terminal according to its own situation.
  • multiple POs may be included, and in the present application, POs may also be considered as paging windows.
  • PO refers to a subframe that may include a paging message.
  • the terminal only needs to listen to the PO corresponding to the terminal in a DRX cycle. Understandably, multiple terminals can listen to the same PO during the paging process.
  • a plurality of terminals that listen to the same PO are referred to as terminals corresponding to the PO.
  • the number of sync blocks affects the number of POs in a DRX cycle, and there is a functional relationship between the number of sync blocks and the number of POs. For example, when the number of sync signal blocks in a set period of a sync signal segment is large, the number of POs is reduced.
  • the length of the DRX cycle may also affect the number of POs in the DRX cycle. For example, the longer the length of the DRX cycle, the greater the number of POs in the DRX cycle.
  • multiple terminals can be grouped.
  • the plurality of terminals may be multiple terminals within a tracking area, or may be multiple terminals within the jurisdiction of one network device, or may be multiple terminals within one PO.
  • each terminal can calculate the group in which it is located.
  • the group in which the terminal is located may be determined according to at least one of the following: the number of groups K of the packet, the number of data bits of the first message, the number of groups associated with the first message, the number of data bits indicating each group in the first message, and the terminal.
  • some or all of the above at least one piece of information may be predefined by a standard protocol.
  • the terminal may determine the group according to the foregoing at least one item, which may be predefined by a standard protocol, or may be agreed by the network device and the terminal.
  • the number K of the group after the multiple terminals are grouped may be any one or more of the number of data bits of the first message, the number of groups associated with the first message, and the number of data bits indicating each group in the first message. For the determination, refer to the related descriptions in the following key technical points (4) and (5), and will not be described here.
  • the following example illustrates how the terminal determines the group in which it is based on at least one of the above information.
  • the group in which the terminal is located can be calculated by the following two computing strategies.
  • the first calculation strategy through the formula To calculate the group in which the terminal is located.
  • the UEID is a terminal identifier.
  • the terminal identifier can uniquely identify a terminal.
  • the terminal identifier may be an international mobile subscriber identification number (IMSI), a SAE temporary mobile station identifier (S-TMSI), or the like, which may determine the identity of the unique terminal.
  • IMSI international mobile subscriber identification number
  • S-TMSI SAE temporary mobile station identifier
  • N may be a constant, and may be determined according to at least one of the number of POs, the length of the DRX cycle, or the number of synchronization signal blocks.
  • N may be the number of POs or the number of paging windows included in the DRX cycle, and may also be the number of synchronization signal blocks, and the like.
  • n indicates that the terminal belongs to the nth group in the K group.
  • the data bits used to calculate the group information are part of the data bits in the terminal identifier.
  • the data bits used to calculate the packet information are selected by two factors: the location of the data bits used to calculate the packet information in the terminal identification, and the number of data bits used to calculate the packet information.
  • a part of the data bits of the terminal identifier may be used to calculate the PO corresponding to the terminal. After the data bits of the PO corresponding to the computing terminal are removed from the terminal identifier, the remaining data bits may be used to calculate the group in which the terminal is located. Since one PO can correspond to multiple terminals, the terminal is classified by the PO. In this application, the grouping of the terminal in the paging process and the PO corresponding to the terminal can be configured at the same time.
  • the above two factors can be determined by the following factors: the first factor, that is, the position of the data bit used to calculate the packet information in the terminal identifier, which can be determined according to the above constant N; the second factor, that is, The number of data bits for calculating the packet information can be determined according to the number of groups K of the packets.
  • FIG. 6 shows a possible schematic diagram of the number of data bits used to calculate packet information and the location in the terminal identification.
  • the minimum log 2 N bits of the terminal identifier may be used to calculate the PO or paging window corresponding to the terminal, where N is the number of POs.
  • the data bits used to calculate the packet information are: adjacent to the lowest log 2 N bits Bits. Indicates that the log 2 K is rounded up.
  • the data bits for calculating the group information determined according to the group number K and the constant N may be different from the above examples, and the data bits for calculating the group information may be determined in a plurality of manners.
  • the manner of determining the data bits used to calculate the packet information may be determined by the network device, determined by the terminal, or agreed between the network device and the terminal, or may be predefined by a standard protocol.
  • a specific calculation strategy may be predefined by a standard protocol, or may be agreed between a network device and a terminal.
  • the truncation identifier of the terminal is obtained by intercepting a partial segment of the terminal identification. Since the truncation identifier is a part of the terminal identifier, the truncation identifier is not unique, that is, the truncation identifiers of the multiple terminals may be the same, and one truncation identifier may correspond to the plurality of terminals.
  • the truncated identifier of the terminal may be determined according to at least one of the following: the number of data bits of the truncated identifier, the location of the truncated identifier in the terminal identifier, the identifier of the terminal, the number of POs, the number of synchronization signal blocks, or the DRX cycle. length.
  • part or all of the above at least one piece of information may be predefined by a standard protocol or pre-agreed by the network device and the terminal.
  • the manner of determining the truncated identifier of the terminal according to the at least one piece of information may be multiple, may be predefined by a standard protocol, or may be agreed by the network device and the terminal.
  • the following example illustrates how to determine the truncation identifier of the terminal according to at least one piece of information described above.
  • the truncation identifier of the terminal can be selected by the following two factors: truncating the number of data bits of the identifier, and truncating the position of the identifier in the terminal identifier.
  • the above two factors may be determined according to the following manner: the first factor, that is, the number of data bits of the truncated identifier, may be determined according to the false alarm probability, or determined according to the number of terminals; the second factor, that is, the truncated identifier is The location in the terminal identification may be determined according to N, where N is a constant, and N may be determined by at least one of the number of POs, the length of DRX, or the number of synchronization signal blocks.
  • the terminal sends an uplink signal to the network device, so that the network device sends a paging message to the terminal, but the terminal is not the paged terminal, and may be referred to as a false alarm.
  • a possible implementation manner is to increase the number of data bits of the truncated identifier in order to reduce the false alarm probability when the false alarm probability is high.
  • a possible implementation manner is to reduce the number of data bits of the truncated identifier when the number of terminals is large. With this implementation, the signaling overhead of the network device during the paging process can be reduced.
  • FIG. 6 shows a schematic diagram of the number of data bits of the truncated identifier of a possible terminal and the location of the truncated identifier in the terminal identifier.
  • the truncated identifier of the terminal may occupy M bits, and the truncated identifier of the terminal is adjacent to the lowest log 2 N bits of the terminal identifier.
  • the lowest log 2 N bits of the terminal identifier may be used to calculate a PO or a paging window corresponding to the terminal.
  • the truncated identifier of the terminal may be: the highest or lowest M bits in the S-TMSI identified by the terminal, and the lowest log 2 N of the terminal identifier, which is not limited to the number and location of possible data bits of the truncated identifier in the above example. Successive or non-contiguous M bits of adjacent bits.
  • the start position or the end position of the terminal truncation identifier may also be adjacent to the bit used in the terminal identifier for calculating the PO.
  • M and the bit used to calculate the PO may be predefined by a standard protocol, or may be agreed by the network device and the terminal.
  • the manner of determining the truncated identifier of the terminal according to the at least one piece of information may be different from the foregoing example, and the manner for determining the truncated identifier may be multiple.
  • the manner of determining the truncated identifier may be determined by the network device, determined by the terminal, or agreed between the network device and the terminal, or may be predefined by a standard protocol.
  • the selection of the terminal truncation identifier may be based on a region, or may be based on a PO, or may be based on both a region and a PO, as described in detail below.
  • the terminal truncation identifier is based on a region.
  • the jurisdiction of the network device includes multiple sub-areas, and the truncated identifier of the terminal is related to the sub-area in which the terminal is located.
  • the above two factors of the terminal located in the sub-area 1 are the same, and the above two factors of the terminal located in the sub-area 2 are the same.
  • the terminal truncation identifier is based on a PO.
  • two factors when a terminal corresponding to different POs selects a truncation identifier may be different.
  • the foregoing two factors of the multiple terminals corresponding to the first PO may be: occupying K1 adjacent bits, and the starting position of the truncated identifier is the starting position of the terminal identifier;
  • the above two factors of the multiple terminals corresponding to the two POs may be: occupying K2 adjacent bits, and the ending position of the truncated identifier is the ending position of the terminal identifier.
  • the terminal truncation identification is based on both the zone and the PO.
  • the jurisdiction of the network device includes multiple sub-areas, and the truncated identifier of the terminal is related to the following two sub-areas in which the terminal is located, and the PO corresponding to the terminal.
  • the two factors of the plurality of terminals located in the sub-area 1 and corresponding to the first PO are the same; the two factors located in the sub-area 1 and the plurality of terminals corresponding to the second PO are the same.
  • the index of the terminal can be used for paging.
  • the index of the terminal is not unique, that is, the indexes of multiple terminals may be the same, and one index may correspond to multiple terminals.
  • the index of the terminal may be a complete terminal identifier, or may be part of the terminal identifier, or may be only an index value, which is described below.
  • the index of the terminal is a complete terminal identifier
  • one index corresponds to one terminal.
  • the terminal index is obtained by intercepting the partial identifier of the terminal identifier, and the index of the terminal may be determined according to at least one of the following information: length of the index The location of the index in the terminal identifier, the identifier of the terminal, the number of POs, the number of synchronization signal blocks, or the length of the DRX cycle.
  • part or all of the above at least one piece of information may be predefined by a standard protocol or pre-agreed by the network device and the terminal.
  • the manner of determining the index of the terminal according to the at least one piece of information may be multiple, may be predefined by a standard protocol, or may be agreed by the network device and the terminal.
  • the following example illustrates how to determine the terminal index based on at least one of the above information.
  • the terminal index may be selected according to the following factors: the number of data bits of the terminal index, and the location of the terminal index in the terminal identifier.
  • the determination of the above two factors can be referred to the relevant description in the key technical point (2), and will not be described here.
  • the index of the terminal is only one index value.
  • one index corresponds to one terminal, that is, the index of the terminal is based on the terminal identifier.
  • the index of the terminal may be based on the area, or may be based on the PO, or may be based on the area and the PO at the same time. Description.
  • the index of the terminal is based on the region.
  • a network device includes a plurality of sub-areas within its jurisdiction, and an index of the terminal is related to a sub-area in which the terminal is located.
  • the above two factors of the terminal located in the sub-area 1 are the same, and the above two factors of the terminal located in the sub-area 2 are the same.
  • the terminal index values in the sub-area 1 are the same, and the terminal index values in the sub-area 2 are the same.
  • the index of the terminal is based on the PO.
  • the two factors of the terminal corresponding to the first PO are the same; the two factors of the terminal corresponding to the second PO are the same.
  • the terminal index values corresponding to the first PO are the same in one DRX cycle, and the terminal index values corresponding to the second PO are the same.
  • the index of the terminal is based on both the region and the PO.
  • the plurality of sub-areas are included in the jurisdiction of the network device, and the two factors corresponding to the second case are located in the sub-area 1 and the plurality of terminals corresponding to the first PO are the same, and are located in the sub-area 2 and the second
  • the above two factors of the plurality of terminals corresponding to the POs are the same.
  • the plurality of sub-areas are included in the jurisdiction of the network device, and the index values of the plurality of terminals corresponding to the first PO are the same in the sub-area 1 and are located in the sub-area 2 and the second one.
  • the index values of the plurality of terminals corresponding to the PO are the same.
  • the first message is a paging indication.
  • the first message can be implemented in the following three ways.
  • the first message may be used to indicate whether each group includes a paged terminal, that is, the first message may be used to indicate whether a group in which the terminal is located has a terminal that is paged.
  • the value of each bit of the first message may indicate whether each group has a terminal being paged.
  • how many bits are used to indicate a group which can be agreed between the network device and the terminal, or can be predefined by a standard protocol.
  • each group indicated by the first message may be a group obtained by grouping multiple terminals in a tracking area, or may be grouped by multiple terminals within a network device jurisdiction. Each group may also be a group obtained by grouping a plurality of terminals in one PO.
  • the first message includes 16 bits, and each bit has a value of 1100011000110000. Wherein, one bit represents a group, and a value of "1" in each bit indicates that a terminal in the corresponding group is paged, and a value of "0" indicates that no terminal in the corresponding group is paged. If the number of groups of the plurality of terminal groups in the PO is 16, the first message indicates that the terminals in the first, second, sixth, seventh, eleventh, and twelveth groups are paged, that is, the first and second ends. The terminals of groups 6, 6, 11, and 12 all include a paged terminal.
  • the respective groups indicated by the first message may be groups obtained by grouping a plurality of terminals included in a plurality of tracking areas, respectively, or may be multiple network devices.
  • Each of the plurality of terminals included in the jurisdiction is grouped and obtained, and each of the plurality of terminals included in the plurality of paging occasions is separately grouped.
  • the number of multiple terminal groups within each PO may be different for each tracking area, each network device jurisdiction, that is, in the first message, for indicating each tracking area, each The number of data bits in the network device jurisdiction, whether each group in each PO includes the paged terminal may be different.
  • multiple terminal groups included within two POs within one DRX cycle are grouped.
  • the plurality of terminals in the first PO are divided into 10 groups, and the plurality of terminals in the second PO are divided into 6 groups.
  • the first message includes 16 bits, the first 10 bits are used to indicate each group in the first PO, and the last 6 bits are used to indicate each group in the second PO.
  • the value of each bit is 1100011000110000. Wherein, one bit represents a group, and a value of "1" in each bit indicates that a terminal in the corresponding group is paged, and a value of "0" indicates that no terminal in the corresponding group is paged.
  • the first message is used to indicate that the first, second, sixth, and seventh groups of terminals in the first PO include the paged terminal, and the first and second groups of terminals in the second PO include the paged terminal. .
  • the first message may include a truncated identifier of the at least one paged terminal.
  • the truncation identifier can refer to the related description in the key technical point (2).
  • the truncation identifier of the terminal 1 is "0011". Then the first message uses the value of 4 bits to "0011" to indicate that the terminal with the truncated identifier "0011" may be paged.
  • the first message may include an index of at least one paged terminal.
  • the index of the terminal can refer to the related description in the key technology point (3).
  • the first message when the terminal index is part of the terminal identifier, the first message may include a partial identifier of the at least one paged terminal, and when the terminal index is only an index value, the first message may include at least one paged terminal. Index value.
  • the first message may be sent by using a physical downlink shared channel (PDSCH) of the paging information or a physical downlink control channel (PDCCH) of the paging information, or by using a control The resource collection (CORESET) is sent.
  • PDSCH physical downlink shared channel
  • PDCCH physical downlink control channel
  • CORESET control The resource collection
  • the first configuration information can be implemented in the following three manners.
  • the first configuration information is used by the terminal to determine the group in which the terminal is located, and the first configuration information may include at least one of the following: the number of data bits of the first message, the number of groups associated with the first message, and the first The number of data bits indicating each group in the message, the number of data bits used to calculate the packet information, the position of the data bits used to calculate the packet information in the terminal identification, the number of POs, the length of the DRX cycle, or the number of synchronization signal blocks .
  • the first message here corresponds to the first implementation of the first message in the above-mentioned key technology point (4).
  • the first configuration information when used to configure the number of data bits of the first message, the following two configuration schemes are available.
  • the first configuration scheme is directly indicated by the number represented by each bit.
  • the first configuration information may indicate the number of data bits of the first message by using 4 bits, and the value of the 4 bits may be any one of 0001-1111, and may respectively indicate the numbers 1-16, that is, the first The number of data bits of the message is any one of 1-16.
  • the second configuration scheme indicates the configuration scheme of the first message by the number of each bit identifier. For example, there are four configuration schemes for predefining the first message, and the number of data bits of the corresponding first message is: 8, 10, 12 or 18.
  • the first configuration information may indicate the configuration scheme by using two bits. When the value of the two bits is 00, the first configuration scheme is indicated, that is, the number of data bits of the first message is 8, and the value of the two bits is 01. Indicates a second configuration scheme, that is, the number of data bits of the first message is 10, and so on.
  • the first configuration information may be configured by other forms to configure the number of data bits of the first message, which is not limited in this application.
  • the number of groups associated with the first message is the number K of groups of terminal packets. There are two cases of the number of groups associated with the first message, which are described in detail below.
  • the number of groups associated with the first message may be the number of groups in which multiple terminals in a tracking area are grouped, or may be the number of groups in which multiple terminals in a network device jurisdiction are grouped. It can be the number of groups that are grouped by multiple terminals within one PO.
  • the first configuration information may be related to the total number of terminals currently in the range of one tracking area when configuring the number of groups associated with the first message, or may be in the jurisdiction of a network device.
  • the total number of terminals within the correlation is also related to the total number of terminals in the current PO.
  • One possible way is that the more the total number of terminals in a tracking area is, the more the number of groups associated with the configured first message; the more the total number of terminals within the jurisdiction of a network device, the more the configuration The greater the number of groups associated with the first message, the greater the number of groups associated with the configured first message when the total number of terminals corresponding to one PO is greater.
  • Another possible way is that the more the number of paging terminals in a tracking area is, the more the number of groups associated with the configured first message; when the paging terminal in the jurisdiction of a network device The greater the number, the greater the number of groups associated with the configured first message; the greater the number of paging terminals corresponding to a PO, the greater the number of groups associated with the configured first message.
  • the first configuration information configures the number of data bits of the first message or the number of groups associated with the first message
  • the number of data bits indicating a group in the first message may be agreed by the network device and the terminal, or may be predefined by a standard protocol.
  • the number of groups associated with the first message may include the number of groups that are respectively grouped by multiple terminals included in the range of multiple tracking areas, and may also include multiple terminals included in the jurisdiction of multiple network devices.
  • the number of groups to be grouped may further include a number of groups in which a plurality of terminals included in a plurality of paging occasions are separately grouped.
  • each tracking area, each network device jurisdiction, and the number of groups of multiple terminal groups within each PO may be different.
  • the first configuration information configures any one of the number of data bits of the first message in the first message, or the number of groups associated with the first message
  • another item may be based on The formula is calculated.
  • a DR is included in a DRX cycle, and each group associated with the first message includes: a K1 group in which a plurality of terminals corresponding to the first PO are divided, and a K2 group in which multiple terminals corresponding to the second PO are divided into .
  • the number of data bits indicating a group may be agreed by the network device and the terminal, or may be determined by a standard protocol. Pre-defined.
  • the first configuration information may also be configured to send a time-frequency resource location of the physical downlink control channel of the paging indication (first message), or The time-frequency resource location of the channel for sending the paging indication is used to indicate that the terminal receives the paging indication.
  • the first configuration information may be configured to configure a time-frequency resource location of the control channel that sends the first message; when the first message is sent by using the PDSCH, the first configuration information may be configured to configure a time-frequency of the control channel of the PDSCH. Resource location.
  • the control channel may be a PDCCH, a control resource set, or a common search space.
  • the first configuration information is configured with at least one item of information: the number of data bits of the first message, the number of groups associated with the first message, the number of data bits indicating each group in the first message, used for calculation
  • the number of data bits of the packet information, the location of the data bits used to calculate the packet information in the terminal identifier, the number of POs, the length of the DRX cycle, or the number of synchronization signal blocks, may be determined by the calculation policy according to the first configuration information.
  • For the group in which it is located refer to the related description in the key technical point (1), and details are not described herein.
  • the terminal may determine, according to the predefined or agreed information and the first configuration information, the terminal is located.
  • the terminal may determine, according to the predefined or agreed information and the first configuration information, the terminal is located.
  • the first configuration information may be used to configure a truncated identifier of the terminal.
  • the first configuration information may directly include a truncated identifier of the terminal.
  • the first configuration information may include at least one of the following: the number of data bits of the truncated identifier of the terminal, the location of the truncated identifier of the terminal in the terminal identifier, the number of POs, the length of the DRX cycle, or The number of sync signal blocks.
  • the terminal may determine its truncated identifier according to the first configuration information, and specifically refer to the related description of the key technical point (2).
  • the first configuration information may be used to configure an index of the terminal.
  • the index of the terminal is the second case (part of the terminal identifier) and the third case (only one index value) of the above-mentioned key technical points (3), which are described below.
  • the index of the terminal is part of the terminal identifier, and the first configuration information is used to indicate the index of the terminal.
  • the first configuration information may directly include an index of the terminal.
  • the first configuration information may include at least one of the following: the number of data bits of the index of the terminal, the location of the index of the terminal in the terminal identifier, the number of POs, the length of the DRX cycle, or a synchronization signal. The number of blocks.
  • the index of the terminal is only one index value
  • the first configuration information is used to indicate the index value of the terminal.
  • the first configuration information may include Table 1, and the index values corresponding to the respective terminals are shown in Table 1.
  • the first configuration information may be configured by any one or any of the following: system information (SI), master information block (MIB), system information block (system) Information block (SIB), remaining minimum system information (RMSI), other system information (OSI), downlink control information (DCI), media access layer control element (medium access) Control-control element (MAC-CE), radio resource control (RRC) information.
  • SI system information
  • MIB master information block
  • SIB system information block
  • SIB system information block
  • RMSI remaining minimum system information
  • OSI other system information
  • DCI downlink control information
  • MAC-CE media access layer control element
  • RRC radio resource control
  • the network device may send a paging indication to the plurality of terminals.
  • the plurality of terminals receiving the first message send an uplink signal to the network device.
  • the network device can learn the beam where the paged terminal is located according to the uplink signal, and send a paging message by using the beam where the paged terminal is located.
  • the signal transmission method in this embodiment may include the following steps:
  • the network device sends a first message to the terminal.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the network device can send the first message to the terminal at the beginning of the paging process.
  • the base station for example, gNB
  • the base station for example, gNB
  • the size of the first message and the specific content may be configured by the network device.
  • the application does not limit the application.
  • the terminal sends an uplink signal to the network device.
  • multiple terminals that receive the first message send uplink signals to the network device. Further, the terminals corresponding to different POs may send uplink signals to the network device by using different random access time-frequency resources.
  • the uplink signal sent by the terminal may be a preamble sent by the random access procedure to the network device.
  • terminals in different POs send different preamble sequences to network devices, or may use different time-frequency resources to transmit preamble sequences, so that network devices distinguish terminals in different POs.
  • the network device determines, according to the uplink signal, a beam where the terminal is located.
  • the network device may determine, according to the uplink signal sent by the terminal, a beam range where the terminal is located, or a random access resource region corresponding to the terminal, or antenna port information corresponding to the terminal.
  • the beam where the terminal is located is a beam whose transmission range can cover the terminal.
  • the network device receives the uplink signal by scanning each beam. After receiving the uplink signal, the network device may determine a beam(s) capable of receiving the uplink signal, and the transmission range of the beam covers all terminals transmitting the uplink signal. Since the terminal that transmits the uplink signal includes the paged terminal, the transmission range of the beam covers the paged terminal.
  • the network device sends a paging message by using a beam where the terminal is located.
  • the transmission range of the beam where the terminal is located covers the paged terminal, and the beam is scanned by using the beam where the terminal is located, and the paging message is sent to ensure that the paged terminal receives the beam direction in the direction of the beam. Paging message.
  • a plurality of terminals can receive the paging message.
  • the terminal checks whether the information of the paged terminal included in the paging message is the same as its own information. For example, it can check whether the paged IMSI in the paging message is the same as its own IMSI. If the information is the same, the paging message is sent to the terminal, and the terminal performs corresponding operations according to the paging message. If different, the paging message is not sent to the terminal, and the terminal waits for the next search. The arrival of the message.
  • the paging message can be used to send paging information to the paged terminal, notify the terminal system information to update, notify the terminal to receive the earthquake, the tsunami warning system (ETWS) or the commercial mobile (commercial mobile alert service, CMAS), etc.
  • EWS tsunami warning system
  • CMAS commercial mobile alert service
  • the network device in the paging process, if the specific direction of the paged terminal is not known, it is necessary to perform beam scanning on all the beams (ie, the total number of beams corresponding to the network device), and send a page. Message.
  • the network device needs to limit the energy of the paging message to each beam corresponding to the network device by using the beamforming technology, and then send the paging message to ensure that the paged terminal receives the search. Call the message.
  • Each beam has a large beamforming overhead.
  • the network device can learn that the transmission range can cover the beams of multiple terminals (including the paged terminal), and use the beam to perform beam scanning and send a paging message.
  • the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • This embodiment corresponds to the scenario grouped in the above key technical point (1).
  • the network device may send the first configuration information and the first message to multiple terminals.
  • the plurality of terminals determine the group in which the group is located according to the first configuration information, and determine, according to the first message, whether the group in which the group is located is paged. All or a portion of the terminals within the group including the paged terminal may send an uplink signal to the network device.
  • the network device sends paging information according to the uplink signal.
  • the implementation manner of the first message is the first implementation manner in the key technical point (4)
  • the implementation manner of the first configuration information is the first implementation manner in the key technical point (5).
  • the signal transmission method in this embodiment may include the following steps:
  • the network device sends the first configuration information and the first message to the terminal.
  • the first configuration information is used by the terminal to determine a group where the terminal is located, and the first message is used to indicate whether the group where the terminal is located has a terminal. Was paged.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the first configuration information and the first message may be sent simultaneously or separately, and the application does not limit the application.
  • the first configuration information sent by the network device may be different or the same. That is, the network device may dynamically configure at least one of the following: the number of data bits of the first message, the number of groups associated with the first message, the number of data bits indicating each group in the first message, and the information for calculating the grouping information.
  • the first configuration information may configure the number of bits of the first message to be X1
  • the first configuration information may configure the number of bits of the first message to be X2.
  • the network device when the network device configures the at least one piece of information by using the first configuration information, the network device may dynamically configure according to the current actual situation (the total number of terminals or the number of pages to be paged), and may refer to key technical points (5).
  • the current actual situation the total number of terminals or the number of pages to be paged
  • the network device may dynamically configure according to the current actual situation (the total number of terminals or the number of pages to be paged)
  • the network device may dynamically configure according to the current actual situation (the total number of terminals or the number of pages to be paged), and may refer to key technical points (5).
  • introduce the first message introduce the first message.
  • the implementation of the first message may refer to the related description of the first implementation manner in the key technical point (4), and details are not described herein.
  • the first message may be sent with a system modification related message.
  • the first message and the system modification related message can be included at the same time.
  • the system modification related message may include at least one of the following: information notifying the terminal system information update, notifying the terminal to receive the earthquake, information of the tsunami warning system, or information of the commercial mobile alarm.
  • the terminal determines, according to the first configuration information, the group that is located.
  • the terminal can determine the group in which it is located according to the first configuration information. Since each piece of information configured by the first configuration information can be dynamically changed, each group that is determined by the terminal according to the first configuration information may dynamically change.
  • the terminal may further determine the corresponding PO according to the first configuration information. After determining the PO, in the paging process, the terminal may monitor the PO corresponding to the terminal in the DRX cycle, and check whether there is a paging message, a first message, or other Paging information.
  • the PO where the terminal is located may be related to the period of the configuration information of the PO. Since it is possible to include the configuration information of the PO in the RMSI information or the OSI information, for example, the PO in which the terminal is located may be related to the period of the RMSI, or the period of other system information.
  • the terminal determines, according to the first message, whether the group in which the group is located is paged.
  • the terminal may determine, according to the first message, whether the group in which the group is located is paged.
  • the terminal in which the terminal is located has a terminal that is paged, the terminal sends an uplink signal to the network device.
  • all or part of the terminals included in the group in which the paged terminal is located transmit an uplink signal to the network device. It can be understood that, in step S204, the implementation of the uplink signal sent by the terminal is similar to the step S102 in the first embodiment, and the related description is omitted, and details are not described herein.
  • the network device determines, according to the uplink signal, a beam where the terminal is located.
  • step S205 is similar to the step S103 in the first embodiment, and the network device receives the uplink signal by scanning each beam. After receiving the uplink signal, the network device may determine a beam(s) capable of receiving the uplink signal, and the transmission range of the beam covers all terminals transmitting the uplink signal. Since the terminal transmitting the uplink signal includes the paged terminal, the transmission range of the beam covers the paged terminal.
  • terminals in different POs send different preamble sequences to network devices, or may transmit preamble sequences using different time-frequency resources, so that the network devices distinguish terminals in different POs.
  • the network device sends a paging message by using a beam where the terminal is located.
  • the transmission range of the beam where the terminal is located covers the paged terminal, and the beam is scanned by using the beam where the terminal is located, and the paging message is sent to ensure that the paged terminal receives the beam direction in the direction of the beam. Paging message.
  • the function of the paging message is the same as that in the first embodiment, and the related description can be referred to.
  • there are two possibilities for implementing a paging message which is described in detail below.
  • the paging message includes a terminal list of the paged terminal.
  • the network device uses the beam where the terminal is located to perform beam scanning and sends a paging message
  • the plurality of terminals in the group where the paged terminal is located can receive the paging message.
  • Each terminal of the plurality of terminals can view whether the terminal identifier of the paging terminal identifier list is the same as the terminal identifier of the terminal, and if yes, the terminal is a paged terminal, and the terminal performs corresponding according to the paging message. Operation.
  • the paging message includes a truncated identifier or index of at least one of the paged terminals.
  • the page message may include a list of truncated identifiers of the paged terminals or an index list of the pages to be paged.
  • Each of the plurality of terminals can check whether it is a paged terminal: if the truncated identifier list of the paged terminal includes a truncation identifier of a terminal, or the index list of the paged terminal includes a terminal Index, then, the terminal may be the paged terminal. The following explains why the terminal is likely to be the paged terminal and how the terminal determines whether it is the paged terminal.
  • the terminal Since the truncation identifier or the index is not unique, even if the truncation identifier of a terminal is the same as the truncation identifier of the paged terminal, or the index of a terminal and the index of the paged terminal are the same, the terminal is not necessarily Paging terminal.
  • the network device may send an acknowledgement message to the terminal in message 4 (MSG4), and the acknowledgement message may carry the indication information of the paged terminal, and the indication information may be It is the complete identifier of the paged terminal and indicates whether the terminal is paged.
  • the terminal After receiving the acknowledgement message, the terminal may determine whether it is a paged terminal. For example, if the identifier of the terminal and the identifier of the paged terminal are the same, the terminal is the paged terminal. If the terminal is a paged terminal, the terminal performs a corresponding operation according to the paging message.
  • a timer timer or threshold can be set. Both the network device and the terminal can calculate that the terminal sends an uplink signal to the network device within the time indicated by the timer, but the terminal is not the number of times of the paged terminal of the current paging. When the number of times exceeds the threshold, the terminal can Applying to the network device for the group in which the terminal is replaced, or the network device may directly determine the first configuration information for the terminal reconfiguration, and the terminal re-determines the group in which the terminal is located.
  • the network device reconfigures the at least one piece of information for the terminal by using the first configuration information, which can reduce the probability that the terminal sends the uplink signal but is not the paged terminal, that is, reduces the false alarm probability.
  • the timer timer or the threshold may not be set.
  • the terminal requests the network device to replace the group where the terminal is located, or the network device directly reconfigures the related information for the terminal.
  • the network device can configure the number of occupied bits of the first message and the number of groups associated with the first message according to actual conditions, thereby dynamically configuring the first message.
  • all or part of the terminals in the group in which the paged terminal is located send an uplink signal to the network device, and the network device can learn that the transmission range can cover the beams of multiple terminals (including the paged terminal), and use the beam. Perform beam scanning and send a paging message.
  • the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • step S201 the network device does not need to send the first configuration information to the terminal, and does not include step S202, the terminal does not need to determine the group according to the first configuration information.
  • step S202 the terminal does not need to determine the group according to the first configuration information.
  • the network device does not need to send the first configuration information to the terminal, the number of data bits of the first message, the number of groups associated with the first message, the number of data bits indicating each group in the first message, and is used to calculate the grouping.
  • At least one of the number of data bits of the information, the position of the data bits used to calculate the packet information in the terminal identifier, the number of POs, the length of the DRX cycle, or the number of synchronization signal blocks may be agreed by the network side and the terminal, or may be Predefined by standard protocols.
  • the terminal grouping manner can be known that the terminal can determine the group in the group through the information agreed by the network device side and the terminal, or the information predefined by the standard protocol.
  • the first message is also used to indicate whether the terminal in which the terminal is located has a terminal that is paged.
  • the implementation of the first message can refer to the related description of the first implementation manner of the key technical point (4).
  • all or part of the terminals in the group in which the paging terminal is located send an uplink signal to the network device, and the network device can learn that the transmission range can cover the beams of multiple terminals (including the paged terminal).
  • the beam is used for beam scanning to send a paging message.
  • the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • This embodiment corresponds to the scene of the truncation identifier in the above-mentioned key technical point (2) and the terminal index in (3).
  • the network device may send the first configuration information and the paging message to the multiple terminals.
  • the plurality of terminals determine their own truncation identifier or index according to the first configuration information, and determine whether to be paged according to the paging message.
  • the implementation manner of the first configuration information is the second implementation manner and the third implementation manner in the foregoing key technical point (5).
  • the signal transmission method in this embodiment may include the following steps:
  • the network device sends the first configuration information and the paging message to the terminal.
  • the first configuration information is used to configure a truncated identifier or index of the terminal, and the paging message includes a truncated identifier or index of the at least one paged terminal.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the first configuration information and the paging message may be sent simultaneously or separately, and the application does not limit the application.
  • the first configuration information sent by the network device may be different or the same. That is, the network device can dynamically configure the truncated identifier or index of the terminal. For a terminal, the truncated identifier or index of the terminal can be dynamically changed.
  • the specific timing for the network device to send the first configuration information may be multiple.
  • the following is a brief description of several possible specific occasions for sending the first configuration information.
  • the network device may send the first configuration information to the terminal by using MIB information, DCI information, system information or RMSI.
  • the truncation identifier or index corresponding to one terminal may be different, and the first configuration information may be dynamically changed or dynamically configured.
  • the network device may send the first configuration information to the terminal through RRC signaling, DCI, and MAC-CE.
  • the truncation identifier or index corresponding to one terminal may be different, and the first configuration information may be dynamically changed or dynamically configured.
  • the third type when the terminal enters a TA area or is powered on, that is, the terminal initiates an attach request, and when registering with the MME, reports the registration information (the old TA area identifier, the terminal identifier, the specific DRX period, etc.) to the network device (for example, the MME). Afterwards, the network device sends the first configuration information to the terminal.
  • the first configuration information may be sent only once, and after being sent once, the truncation identifier or index corresponding to the terminal may not change any more.
  • the specific configuration is not limited to the specific time when the first configuration information is sent.
  • the network device may also send the first configuration information in other occasions, and the application does not impose any limitation.
  • the terminal determines, according to the first configuration information, a truncation identifier or an index of the terminal.
  • the terminal may determine its truncated identifier or index according to the first configuration information, and specifically refer to the related descriptions of the second implementation manner in the key technology (2) and the key technical point (5), or Refer to the relevant description of the third implementation of key technology (3) and key technology points (5).
  • the terminal determines, according to the paging message, whether the truncation identifier of the terminal is the same as the truncation identifier of the at least one paging terminal, or whether the index of the terminal is the same as the index of the at least one paging terminal.
  • the terminal is to the The network device sends an uplink signal.
  • the paging message includes a truncation identifier or index of at least one paged terminal.
  • the page message may include a list of truncated identifiers of the paged terminals or an index list of the pages to be paged.
  • Each of the plurality of terminals that receive the paging message can check whether it is a paged terminal: if the truncated identifier list of the paged terminal includes a truncation identifier of a terminal, or an index list of the paged terminal The index of a terminal is included, and then the terminal may be a paged terminal. The following explains why the terminal is likely to be the paged terminal and how the terminal determines whether it is the paged terminal.
  • the terminal Since the truncation identifier or the index is not unique, even if the truncation identifier of a terminal is the same as the truncation identifier of the paged terminal, or even if the index of a terminal and the index of the paged terminal are the same, the terminal is not necessarily the same.
  • the terminal is being paged.
  • the network device may send an acknowledgement message to the terminal in message 4 (MSG4), and the acknowledgement message may carry the indication information of the paged terminal, and the indication information may be It is the complete identifier of the paged terminal and indicates whether the terminal is paged.
  • the terminal After receiving the acknowledgement message, the terminal may determine whether it is a paged terminal. For example, if the identifier of the terminal and the identifier of the paged terminal are the same, the terminal is the paged terminal.
  • the terminal sends an uplink signal to the network device to respond to the behavior of the network device transmitting the paging message.
  • the uplink signal sent by the terminal may be a preamble sent by the random access procedure to the network device.
  • a timer timer or threshold may be set. Both the network device and the terminal can calculate that the terminal sends an uplink signal to the network device within the time indicated by the timer, but the terminal is not the number of times of the paged terminal of the current paging. When the number of times exceeds the threshold, the terminal can Apply to the network device for the truncation identifier of the replacement terminal, or the network device can directly configure a new truncation identifier for the terminal.
  • a possible way is that the network device configures a long truncation identifier for the terminal by using the first configuration information, which can reduce the probability that the terminal sends the uplink signal, but the terminal is not the paged terminal, that is, the false alarm probability is reduced. .
  • the timer timer or the threshold may not be set.
  • the terminal requests the network device to change the truncation identifier of the terminal, or the network device directly configures a new truncation identifier for the terminal. .
  • the network device can dynamically configure the truncation identifier or index of each terminal by using the first configuration information.
  • the paging message is intercepted or indexed, and the paging message carries less content than the full identity paging terminal of the terminal, which reduces the time-frequency resource overhead of beam scanning when the paging message is sent.
  • This embodiment corresponds to the scene of the terminal index in the truncated identifier and the key technical point (3) in the above key technical point (2).
  • the network device may send the first configuration information and the first message to multiple terminals.
  • the plurality of terminals determine their own truncation identifier or index according to the first configuration information, and determine whether to send an uplink signal to the network device according to the first message.
  • the network device can learn the beam where the paged terminal is located according to the uplink signal, and send a paging message by using the beam where the paged terminal is located.
  • the implementation manner of the first message is the second implementation manner and the third implementation manner in the foregoing key technical point (4), and the implementation manner of the first configuration information is the second key technical point (5).
  • Implementation and third implementation are the implementation manner of the first message and the third implementation manner in the foregoing key technical point (4), and the implementation manner of the first configuration information is the second key technical point (5).
  • the signal transmission method in this embodiment may include the following steps:
  • the network device sends the first configuration information and the first message to the terminal.
  • the first configuration information is used to configure a truncated identifier of the terminal, or an index of the terminal.
  • the first message includes a truncation of the at least one paged terminal. Identification or index.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the first configuration information and the first message may be sent simultaneously or separately, and the application does not limit the application.
  • the first configuration information sent by the network device may be different or the same. That is, the network device can dynamically configure the truncated identifier or index of the terminal. For a terminal, the truncated identifier or index of the terminal can be dynamically changed.
  • the implementation manner of the first configuration information is the second implementation manner and the third implementation manner in the foregoing key technical point (5).
  • the timing of transmitting the first configuration information refer to the related description in Embodiment 4.
  • the implementation manner of the first message is the second implementation manner and the third implementation manner in the foregoing key technical point (4).
  • the timing of sending the first message refer to the related description of step S101 in Embodiment 1.
  • the terminal determines, according to the first configuration information, a truncation identifier or an index.
  • the terminal determines, according to the first message, whether the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or whether the index of the terminal is the same as the index of the at least one paged terminal.
  • the terminal sends an uplink to the network device. signal.
  • the terminal is classified by the truncation identifier or the index.
  • the terminal After receiving the first message, the terminal checks whether the truncated identifier of the first message is the same as the truncated identifier of the at least one paged terminal included in the first message, or the index of the self and the at least one of the first message are found. Whether the index of the calling terminal is the same. If they are the same, the terminal sends an uplink signal to the network device.
  • the terminal that transmits the uplink signal includes the paged terminal. It can be understood that, in step S404, the implementation of the uplink signal sent by the terminal is similar to the step S102 in the first embodiment, and the related description is omitted, and details are not described herein.
  • the network device determines, according to the uplink signal, a beam where the terminal is located.
  • step S405 is similar to the step S103 in the first embodiment, and the network device receives the uplink signal by scanning each beam. After receiving the uplink signal, the network device may determine a beam(s) capable of receiving the uplink signal, and the transmission range of the beam covers all terminals transmitting the uplink signal. Since the terminal transmitting the uplink signal includes the paged terminal, the transmission range of the beam covers the paged terminal.
  • the network device sends a paging message by using a beam where the terminal is located.
  • the transmission range of the beam where the terminal is located covers the paged terminal, and the beam is scanned by using the beam where the terminal is located, and the paging message is sent to ensure that the paged terminal receives the beam direction in the direction of the beam. Paging message.
  • the function of the paging message is the same as that in the first embodiment, and the related description can be referred to.
  • the implementation of the paging message may be the same as the first one in the second embodiment, which is described in detail below.
  • the paging message includes a terminal list of the paged terminal.
  • the network device uses the beam where the terminal is located to perform beam scanning and sends a paging message
  • the plurality of terminals in the group where the paged terminal is located can receive the paging message.
  • Each terminal of the plurality of terminals can view whether the terminal identifier of the paging terminal identifier list is the same as the terminal identifier of the terminal, and if yes, the terminal is a paged terminal, and the terminal performs corresponding according to the paging message. Operation.
  • the network device can dynamically configure the truncation identifier or index of each terminal by using the first configuration information.
  • the truncated identifier and all or part of the terminal (including the paged terminal) of the truncated identifier of the at least one paged terminal, or the index and the same all or part of the at least one paged terminal sends an uplink signal to the network device.
  • the network device can know that the transmission range can cover the beams of multiple terminals (including the paged terminal), and use the beam to perform beam scanning and send a paging message.
  • the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • This embodiment corresponds to the scenario grouped in the above key technical point (1).
  • each terminal autonomously determines a data bit for calculating the packet information, and reports the data bit to the network device by using the second message.
  • the network device may send a first message to the plurality of terminals, the plurality of terminals determining, according to the first message, whether the group in which the group is included includes the paged terminal. All or a portion of the terminals within the group including the paged terminal may send an uplink signal to the network device. The network device sends paging information according to the uplink signal.
  • the implementation manner of the first message is the first implementation manner in the key technical point (4).
  • the signal transmission method in this embodiment may include the following steps:
  • the terminal sends a second message to the network device.
  • the second message includes data bits corresponding to the terminal for calculating the group information.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the terminal When the terminal enters a TA area or is powered on, that is, when the terminal initiates an attach request and registers with the MME, when the network device (for example, the MME) reports the registration information (terminal identifier, specific DRX cycle, etc.), the second information and the registration are performed.
  • the information is reported at the same time.
  • the second information may be sent only once, and once transmitted, the data bits corresponding to the terminal for calculating the packet information may not change any more.
  • each terminal autonomously determines data bits for calculating packet information.
  • the length and location of the data bits determined by each terminal for calculating the packet information may be different, and the present application is not limited.
  • the terminal can determine the data bits used for calculating the group information according to the autonomous determination, which is equivalent to the group in which the autonomous determination is performed.
  • the network device determines, according to the second message, the group where the terminal is located.
  • the network device can learn the group in which the plurality of terminals are respectively located.
  • the network device sends a first message to the terminal.
  • the first message is used to indicate whether a group in which the terminal is located has a terminal that is paged.
  • the network device can notify each terminal which groups have terminals in the group through the first message.
  • the implementation of the first message may refer to the related description of the first implementation manner in the key technical point (4), and details are not described herein.
  • the terminal determines, according to the first message, whether a group in which the terminal is located has a terminal that is paged.
  • the terminal sends an uplink signal to the network device.
  • the network device determines, according to the uplink signal, a beam where the terminal is located.
  • the network device sends a paging message by using a beam where the terminal is located.
  • the implementation of the steps S504-S507 is the same as the implementation of the steps S203-S206 in the second embodiment, and the related description is omitted, and details are not described herein.
  • the terminal autonomously determines the data bits used to calculate the packet information, and the implementation manner is more flexible.
  • all or part of the terminals in the group in which the paged terminal is located send an uplink signal to the network device, and the network device can learn that the transmission range can cover the beams of multiple terminals (including the paged terminal), and use the beam.
  • Perform beam scanning and send a paging message where the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • This embodiment corresponds to the scene of the truncation identifier in the above-mentioned key technical point (2) and the terminal index in (3).
  • each terminal independently determines its own truncation identifier or index, and reports the second message to the network device.
  • the network device may send a paging message to the plurality of terminals, where the paging message includes a list of truncated identifiers of the at least one paged terminal or an index of the at least one paged terminal.
  • the signal transmission method in this embodiment may include the following steps:
  • the terminal sends a second message to the network device, where the second message includes a truncated identifier or index of the terminal.
  • the terminal may include multiple terminals in a tracking area, and may also include multiple terminals in the jurisdiction of the network device, and may also include multiple terminals corresponding to one or more POs. And, the plurality of terminals include at least one paged terminal.
  • the terminal When the terminal enters a TA area or is powered on, that is, when the terminal initiates an attach request, when the terminal registers with the MME, when the network device (for example, the MME) reports the registration information (terminal identifier, specific DRX cycle, etc.), the second information and Registration information is reported at the same time.
  • the second information may be sent only once, and after being sent once, the truncation identifier or index corresponding to the terminal may not change any more.
  • each terminal autonomously determines a truncation identifier or index.
  • the length and location of the truncated identifier determined by each terminal may be different, and the application does not limit the application.
  • the network device determines, according to the second message, a truncation identifier or an index of the terminal.
  • the network device sends a paging message to the terminal.
  • the paging message includes a truncation identifier of at least one paged terminal or an index of at least one paged terminal.
  • the implementation of the paging message is the same as that in the fourth embodiment, and reference may be made to the related description.
  • the terminal determines, according to the paging message, whether the truncation identifier of the terminal is the same as the truncation identifier of the at least one paging terminal, or whether the index of the terminal is the same as the index of the at least one paging terminal.
  • the terminal is to the The network device sends an uplink signal.
  • the terminal autonomously determines the truncation identifier or index and reports it to the network device.
  • the paging message In the paging message, the paging message is intercepted or indexed, and the paging message carries less content than the full identity paging terminal of the terminal, which reduces the time-frequency resource overhead of beam scanning when the paging message is sent.
  • This embodiment corresponds to the scene of the truncation identifier in the above-mentioned key technical point (2) and the terminal index in (3).
  • each terminal independently determines its own truncated identifier or index, and reports the second message to the network device.
  • the network device may send a first message to the multiple terminals, and the multiple terminals determine, according to the first message, whether to send an uplink signal to the network device.
  • the network device can learn the beam where the paged terminal is located according to the uplink signal, and send a paging message by using the beam where the paged terminal is located.
  • the implementation manner of the first message is the second implementation manner and the third implementation manner in the foregoing key technical point (4).
  • the signal transmission method in this embodiment may include the following steps:
  • the terminal sends a second message to the network device, where the second message includes a truncated identifier or index of the terminal.
  • step S701 is the same as step S601 in the seventh embodiment, and reference may be made to the related description.
  • the network device determines, according to the second message, a truncation identifier or an index of the terminal.
  • the network device sends a first message to the terminal, where the first message includes a truncated identifier or index of the at least one paged terminal.
  • the network device may obtain a truncated identifier or index of each of the multiple terminals.
  • the network device may notify the truncated identifier or index of the at least one paged terminal of each terminal by using the first message.
  • the implementation of the first message may refer to the related descriptions of the second implementation manner and the third implementation manner in the key technical point (4), and details are not described herein.
  • the terminal determines, according to the first message, whether a truncation identifier of the terminal is the same as a truncation identifier of the at least one paged terminal, or whether an index of the terminal is an index of the at least one paged terminal. the same.
  • the terminal sends the uplink to the network device. signal.
  • the network device determines, according to the uplink signal, a beam where the terminal is located.
  • the network device sends a paging message by using a beam where the terminal is located.
  • the terminal autonomously determines the truncation identifier or index and reports it to the network device.
  • the truncated identifier and all or part of the terminal (including the paged terminal) of the truncated identifier of the at least one paged terminal, or the index and the same all or part of the at least one paged terminal sends an uplink signal to the network device.
  • the network device can know that the transmission range can cover the beams of multiple terminals (including the paged terminal), and use the beam to perform beam scanning and send a paging message.
  • the number of beams scanned by the network device is much lower than the total number of beams corresponding to the network device. Therefore, this embodiment can reduce the time-frequency resource overhead of beam scanning when the network device sends a paging message.
  • Figures 8A-8D illustrate the present application providing a wireless communication system, terminal, and network device.
  • the terminal may be the terminal in the embodiment of FIG. 1 or FIG. 2
  • the network device may be the network device in the embodiment of FIG. 1 or FIG. 3
  • the wireless communication system may be the wireless communication system described in FIG. Several possible implementations of the wireless communication system are described separately below.
  • the wireless communication system 700 includes: a terminal 710 and a network device 720.
  • the terminal 710 may include: a receiving unit 711, a determining unit 712, and a transmitting unit 713.
  • the receiving unit 711 is configured to receive first configuration information and a first message that are sent by the network device, where the first configuration information is used by the terminal to determine a group where the terminal is located, where the first message is used to indicate the terminal Whether the group in which the group is located is paged;
  • a determining unit 712 configured to determine, according to the first configuration information, a group in which the terminal is located;
  • the sending unit 713 is configured to send an uplink signal to the network device if a terminal in which the terminal is located has a terminal that is paged.
  • the network device 720 may include a receiving unit 721 and a transmitting unit 722.
  • the sending unit 722 is configured to send the first configuration information and the first message to the terminal, where the first configuration information is used by the terminal to determine a group where the terminal is located, where the first message is used to indicate that the terminal is located Whether the group has a terminal being paged;
  • the receiving unit 721 is configured to receive an uplink signal sent by the terminal if a terminal in which the terminal is located has a terminal being paged;
  • the sending unit 722 is further configured to send a paging message to the terminal according to the uplink signal.
  • the first configuration information may include at least one of: a number of data bits of the first message, a number of groups associated with the first message, and each of the first messages The number of data bits of the group, the number of data bits used to calculate the packet information, the location of the data bits used to calculate the packet information in the terminal identification, the number of paging occasions, the length of the discontinuous reception period, or the synchronization signal The number of blocks.
  • the terminal determines that the group n where the terminal is located is:
  • the UEID is an identifier of the terminal
  • K is a number of groups associated with the first message
  • N is a constant
  • N passes the number of paging occasions, the length of the discontinuous reception period, or the synchronization signal. At least one of the number of blocks is determined. .
  • the first configuration information is configured by at least one of: system information, system information block, remaining minimum system information, other system information, downlink control information, radio resource control information, or media access control element.
  • the wireless communication system 700 includes: a terminal 720, and a network device 730.
  • the terminal 720 may include: a receiving unit 721, a determining unit 722, and a sending unit 723, where
  • the receiving unit 721 is configured to receive first configuration information and a paging message sent by the network device, where the first configuration information is used to configure a truncation identifier or an index of the terminal, and the paging message includes at least one paged terminal. Truncated identifier or index;
  • a determining unit 722 configured to determine, according to the first configuration information, a truncation identifier or an index of the terminal;
  • the sending unit 723 is configured to: if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paging terminal, or if the index of the terminal and the index of the at least one paging terminal are the same, The network device sends an uplink signal.
  • the network device 730 may include: a receiving unit 731, and a sending unit 732, where
  • the sending unit 732 is configured to send the first configuration information and the paging message to the terminal, where the first configuration information is used to configure a truncation identifier or an index of the terminal, and the paging message includes a truncation of the at least one paged terminal. Identification or index;
  • the receiving unit 731 is configured to: if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paging terminal, or if the index of the terminal and the index of the at least one paging terminal are the same, the receiving station The uplink signal sent by the terminal.
  • the first configuration information when the first configuration information is used to configure the truncated identifier of the terminal, the first configuration information includes at least one of: a data bit number of the truncated identifier of the terminal, the The truncation of the terminal identifies the location in the terminal identification, the number of paging occasions, the length of the discontinuous reception period, or the number of synchronization signal blocks.
  • the first configuration information is configured by at least one of: system information, system information block, remaining minimum system information, other system information, downlink control information, radio resource control information, or media access control element.
  • the wireless communication system 700 includes: a terminal 740 and a network device 750.
  • the terminal 740 may include: a receiving unit 741, and a sending unit 742, where
  • the sending unit 742 is configured to send, to the network device, a second message, where the second message includes data bits corresponding to the terminal for calculating packet information.
  • the receiving unit 741 is configured to receive a first message sent by the network device, where the first message is sent by the network device after determining, according to the second message, the group that the terminal is located, where the first message is used by the network device. Instructing the group in which the terminal is located whether a terminal is paged;
  • the sending unit 742 is further configured to send an uplink signal to the network device if a terminal in which the terminal is located has a terminal that is paged.
  • the network device 750 may include: a receiving unit 751, a determining unit 752, and a sending unit 753, where
  • the receiving unit 751 is configured to receive a second message that is sent by the terminal, where the second message includes data bits that are used by the terminal to calculate packet information.
  • a determining unit 752 configured to determine, according to the second message, a group in which the terminal is located;
  • the sending unit 753 is configured to send, to the terminal, a first message, where the first message is used to indicate whether a group in which the terminal is located has a terminal that is paged;
  • the receiving unit 751 is further configured to: if the terminal in which the terminal is located, the terminal is paged, and receive an uplink signal sent by the terminal;
  • the sending unit 753 is further configured to send a paging message to the terminal according to the uplink signal.
  • the sending timing of the second message is: when the terminal initiates the attach request.
  • the second message may be sent by at least one of system information, system information block, remaining minimum system information, other system information, downlink control information, radio resource control information, or media access control layer control element.
  • the wireless communication system 700 includes: a terminal 760 and a network device 770.
  • the terminal 760 may include: a receiving unit 761, and a sending unit 762, where
  • the sending unit 762 is configured to send, to the network device, a second message, where the second message includes a truncated identifier or an index of the terminal;
  • the receiving unit 761 is configured to receive a paging message sent by the network device, where the paging message is sent after the network device determines the truncation identifier or index of the terminal according to the second message, where the paging message is sent by the network device.
  • the message includes a truncated identifier or index of at least one paged terminal;
  • the sending unit 762 is further configured to: if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paging terminal, or if the index of the terminal and the index of the at least one paging terminal are the same, The network device sends an uplink signal.
  • the network device 770 may include: a receiving unit 771, a determining unit 772, and a sending unit 773, where
  • the receiving unit 771 is configured to receive a second message sent by the terminal, where the second message includes a truncated identifier or an index of the terminal;
  • a determining unit 772 configured to determine, according to the second message, a truncation identifier or an index of the terminal;
  • a sending unit 773 configured to send a paging message to the terminal, where the paging message includes a truncated identifier or index of at least one paged terminal;
  • the receiving unit 771 is further configured to: if the truncation identifier of the terminal is the same as the truncation identifier of the at least one paged terminal, or if the index of the terminal and the index of the at least one paged terminal are the same, The uplink signal sent by the terminal.
  • the sending timing of the second message is: when the terminal initiates the attach request.
  • the second message may be sent by at least one of system information, system information block, remaining minimum system information, other system information, downlink control information, radio resource control information, or media access control layer control element.
  • each functional unit included in the terminal may refer to the foregoing various embodiments, and details are not described herein again.
  • the various functional units included in the network device reference may be made to the foregoing various embodiments, and details are not described herein again.
  • the network device can dynamically configure the number of data bits of the first message according to actual conditions.
  • the time-frequency resource overhead of the beam scanning when the network device sends the paging message can be reduced.
  • each network element such as a base station or a terminal device
  • each network element includes hardware structures and/or software modules corresponding to each function in order to implement the above functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in conjunction with the methods or steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiment of the present application may divide a function module into a base station or a terminal device according to the foregoing method example.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner. The following is an example of dividing each functional module by using corresponding functions.
  • Figure 9 illustrates a terminal 200 provided by some embodiments of the present application.
  • the terminal 200 may include: one or more terminal processors 201, a memory 202, a communication interface 203, a receiver 205, a transmitter 206, a coupler 207, an antenna 208, a user interface 202, and an input and output module. (including audio input and output module 210, key input module 211, display 212, etc.). These components can be connected by bus 204 or other means, and FIG. 9 is exemplified by a bus connection. among them:
  • Communication interface 203 can be used by terminal 200 to communicate with other communication devices, such as network devices.
  • the network device may be the network device 300 shown in FIG.
  • the communication interface 203 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a 5G or a future communication interface of a new air interface.
  • LTE Long Term Evolution
  • 5G Fifth Generation
  • the terminal 200 may be configured with a wired communication interface 203, such as a Local Access Network (LAN) interface.
  • LAN Local Access Network
  • Transmitter 206 can be used to perform transmission processing, such as signal modulation, on signals output by terminal processor 201.
  • Receiver 205 can be used to perform reception processing, such as signal demodulation, on the mobile communication signals received by antenna 208.
  • transmitter 206 and receiver 205 can be viewed as a wireless modem.
  • the number of the transmitter 206 and the receiver 205 may each be one or more.
  • the antenna 208 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.
  • the coupler 207 is configured to divide the mobile communication signal received by the antenna 208 into multiple channels and distribute it to a plurality of receivers 205.
  • the terminal 200 may further include other communication components such as a GPS module, a Bluetooth module, a Wireless Fidelity (Wi-Fi) module, and the like. Not limited to the above-described wireless communication signals, the terminal 200 can also support other wireless communication signals such as satellite signals, short-wave signals, and the like. Not limited to wireless communication, the terminal 200 may also be configured with a wired network interface (such as a LAN interface) to support wired communication.
  • a wired network interface such as a LAN interface
  • the input and output module can be used to implement interaction between the terminal 200 and the user/external environment, and can mainly include an audio input and output module 210, a key input module 211, a display 212, and the like. Specifically, the input and output module may further include: a camera, a touch screen, a sensor, and the like. The input and output modules communicate with the terminal processor 201 through the user interface 209.
  • Memory 202 is coupled to terminal processor 201 for storing various software programs and/or sets of instructions.
  • memory 202 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 202 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as ANDROID, IOS, WINDOWS, or LINUX.
  • the memory 202 can also store a network communication program that can be used to communicate with one or more additional devices, one or more terminal devices, one or more network devices.
  • the memory 202 can also store an interface program, which can realistically display the content of the application through a graphical operation interface, and receive user control operations on the application through input controls such as menus, dialog boxes, and buttons.
  • the memory 202 can be used to store an implementation of the communication method provided by one or more embodiments of the present application on the terminal 200 side.
  • Terminal processor 201 can be used to read and execute computer readable instructions. Specifically, the terminal processor 201 can be used to invoke a program stored in the memory 212, such as the method provided by the method provided by one or more embodiments of the present application on the terminal 200 side, and execute the instructions included in the program.
  • the terminal 200 can be the terminal 103 in the wireless communication system 100 shown in FIG. 1, and can be implemented as a mobile device, a mobile station, a mobile unit, a wireless unit, a remote unit, and a user agent. , mobile client and more.
  • the terminal processor 201 is generally a control center of a terminal device, and may be generally referred to as a processing unit for controlling the terminal device to perform the above-described FIG. 2, FIG. 3, FIG. 4, FIG. 5, FIG. 6, FIG. 7A-7G, and FIG. 8A-8D.
  • the receiver 205 can perform the DCI sent by the network device in the terminal device in FIG. 2, and the terminal processor 201 can perform the implementation of determining the second PDSCH time-frequency resource block in FIG.
  • the receiver 205 can perform the DCI sent by the network device in the terminal device in FIG. 2
  • the terminal processor 201 can perform the implementation of determining the second PDSCH time-frequency resource block in FIG.
  • the terminal 200 shown in FIG. 9 is only one implementation manner of the embodiment of the present application. In an actual application, the terminal 200 may further include more or fewer components, which are not limited herein.
  • network device 300 can include one or more network device processors 301, memory 302, communication interface 303, transmitter 305, receiver 306, coupler 307, and antenna 308. These components can be connected by bus 304 or other means, and FIG. 10 is exemplified by a bus connection. among them:
  • Communication interface 303 can be used by network device 300 to communicate with other communication devices, such as terminal devices or other network devices.
  • the terminal device may be the terminal 200 shown in FIG. 9.
  • the communication interface 303 may be a Long Term Evolution (LTE) (4G) communication interface, or may be a 5G or a future communication interface of a new air interface.
  • LTE Long Term Evolution
  • the network device 300 may also be configured with a wired communication interface 303 to support wired communication.
  • the backhaul link between one network device 300 and other network devices 300 may be a wired communication connection.
  • Transmitter 305 can be used to perform transmission processing, such as signal modulation, on signals output by network device processor 301.
  • Receiver 306 can be used to perform reception processing on the mobile communication signals received by antenna 308. For example, signal demodulation.
  • transmitter 305 and receiver 306 can be viewed as a wireless modem. In the network device 300, the number of the transmitter 305 and the receiver 306 may each be one or more.
  • the antenna 308 can be used to convert electromagnetic energy in a transmission line into electromagnetic waves in free space, or to convert electromagnetic waves in free space into electromagnetic energy in a transmission line.
  • Coupler 307 can be used to divide the mobile pass signal into multiple channels and distribute it to multiple receivers 306.
  • Memory 302 is coupled to network device processor 301 for storing various software programs and/or sets of instructions.
  • memory 302 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic disk storage devices, flash memory devices, or other non-volatile solid state storage devices.
  • the memory 302 can store an operating system (hereinafter referred to as a system) such as an embedded operating system such as uCOS, VxWorks, or RTLinux.
  • the memory 302 can also store a network communication program that can be used to communicate with one or more additional devices, one or more terminal devices, one or more network devices.
  • the network device processor 301 can be used to perform wireless channel management, implement call and communication link establishment and teardown, and provide cell handover control and the like for terminals in the control area.
  • the network device processor 301 may include: an Administration Module/Communication Module (AM/CM) (a center for voice exchange and information exchange), and a Basic Module (BM) (for Complete call processing, signaling processing, radio resource management, radio link management and circuit maintenance functions), code conversion and sub-multiplexer (TCSM) (for multiplexing demultiplexing and code conversion functions) )and many more.
  • AM/CM Administration Module/Communication Module
  • BM Basic Module
  • TCSM code conversion and sub-multiplexer
  • the network device processor 301 can be used to read and execute computer readable instructions. Specifically, the network device processor 301 can be used to invoke a program stored in the memory 302, such as the method provided by one or more embodiments of the present application, on the network device 300 side, and execute the instructions contained in the program.
  • the network device 300 can be the network device 101 in the wireless communication system 100 shown in FIG. 1, and can be implemented as a base transceiver station, a wireless transceiver, a basic service set (BSS), and an extended service set (ESS). , NodeB, eNodeB, access point or TRP, etc.
  • the network device processor 301 is typically a control center of a base station, and may be generally referred to as a processing unit for controlling the base station to perform the above-described Figures 2, 3, 4, 5, 6, 7, 7A-7G, and 8A-8D.
  • the steps performed by the network device or base station can perform the steps of network device configuration DCI in FIG. 2, and transmitter 305 can perform the steps of implementing the DCI by PDCCH in FIG.
  • network device configuration DCI in FIG. 2 can perform the steps of implementing the DCI by PDCCH in FIG.
  • the network device 300 shown in FIG. 10 is only one implementation of the embodiment of the present application. In actual applications, the network device 300 may further include more or fewer components, which are not limited herein.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, or an electrical, mechanical or other form of connection.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the embodiments of the present invention.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of a software functional unit.
  • the integrated unit if implemented in the form of a software functional unit and sold or used as a standalone product, may be stored in a computer readable storage medium.
  • the technical solution of the present invention contributes in essence or to the prior art, or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium.
  • a number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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

Abstract

L'invention concerne un procédé de communication et un dispositif de communication. Le procédé consiste : à recevoir des informations de commande de liaison descendante (DCI) envoyées par un dispositif de réseau par l'intermédiaire d'un canal de commande de liaison descendante physique (PDCCH), les DCI comprenant des informations d'un bloc de ressources temps-fréquence de canal partagé de liaison descendante physique (PDSCH), les DCI programmant N blocs de ressources temps-fréquence de PDSCH, et chaque bloc de ressources temps-fréquence de PDSCH fournissant des informations de radiomessagerie d'au moins un dispositif terminal, N étant un nombre entier positif supérieur ou égal à 1 ; à déterminer, conformément aux DCI, un bloc de ressources temps-fréquence de PDSCH qui doit être démodulé, le bloc de ressources temps-fréquence de PDSCH devant être démodulé faisant partie des blocs de ressources temps-fréquence compris dans les N blocs de ressources temps-fréquence de PDSCH ; et à démoduler le bloc de ressources temps-fréquence de PDSCH qui doit être démodulé. Étant donné qu'une partie des blocs de ressources temps-fréquence sont démodulés, le surdébit de consommation d'énergie du dispositif terminal dû à la démodulation du bloc de ressources temps-fréquence de PDSCH est réduit, par comparaison avec la démodulation de tous les blocs de ressources temps-fréquence de PDSCH.
PCT/CN2018/103376 2017-09-08 2018-08-31 Procédé de communication et dispositif de communication WO2019047770A1 (fr)

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