WO2022027258A1 - 寻呼分组配置、寻呼检测方法、装置、接入网设备和终端 - Google Patents

寻呼分组配置、寻呼检测方法、装置、接入网设备和终端 Download PDF

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Publication number
WO2022027258A1
WO2022027258A1 PCT/CN2020/106917 CN2020106917W WO2022027258A1 WO 2022027258 A1 WO2022027258 A1 WO 2022027258A1 CN 2020106917 W CN2020106917 W CN 2020106917W WO 2022027258 A1 WO2022027258 A1 WO 2022027258A1
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WIPO (PCT)
Prior art keywords
paging
paging group
terminal
reference signal
information
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PCT/CN2020/106917
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English (en)
French (fr)
Inventor
刘洋
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北京小米移动软件有限公司
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Publication date
Application filed by 北京小米移动软件有限公司 filed Critical 北京小米移动软件有限公司
Priority to PCT/CN2020/106917 priority Critical patent/WO2022027258A1/zh
Priority to CN202080001858.3A priority patent/CN114391287A/zh
Publication of WO2022027258A1 publication Critical patent/WO2022027258A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/02—Arrangements for increasing efficiency of notification or paging channel
    • 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 disclosure relates to the field of communication technologies, and in particular, to a paging group configuration, a paging detection method, an apparatus, an access network device, and a terminal.
  • TRS/CSI-RS Tracking Reference Signal/Channel State Information Reference Signal
  • the embodiments of the present disclosure provide a paging group configuration, a paging detection method, an apparatus, an access network device, and a terminal.
  • the technical solution is as follows:
  • a paging group configuration method comprising:
  • the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • the paging packet information is sent.
  • the reference signal is TRS/CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively correlated with the interval size between REs occupied by different reference signals.
  • the paging group information includes a frequency domain offset of a reference signal of a paging group where the terminal is located; or,
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the sending the paging group information includes:
  • the sending the paging group information includes:
  • the paging group information includes the frequency domain offset of the reference signal used for PDSCH synchronization, or, the paging group information in the paging group information
  • the identity is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • a paging detection method includes:
  • the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • the paging detection is performed based on the paging group in which the terminal is located.
  • the reference signal is TRS/CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively related to the size of the interval between REs occupied by different reference signals.
  • the paging group information includes a frequency domain offset of a reference signal of a paging group where the terminal is located; or,
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the acquiring paging group information includes:
  • paging group information based on configuration information, protocol definitions or local storage; or,
  • the acquiring paging group information includes:
  • the paging packet information carried by the access network device through the DCI, where the paging packet information includes the frequency domain offset of the reference signal used for PDSCH synchronization, or, the paging packet in the paging packet information
  • the identity is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • the performing paging detection based on the paging group where the terminal is located includes:
  • the terminal Based on the information demodulated from the PDSCH, it is determined whether the terminal has a paging message or a short message.
  • the performing paging detection based on the paging group where the terminal is located includes:
  • the terminal Based on the information demodulated from the PDSCH, it is determined whether the terminal has a paging message or a short message.
  • the receiving and demodulating PDSCH includes:
  • the PDSCH is demodulated by sequentially using the code domain resources corresponding to the paging group where the terminal is located, until the PDSCH is successfully demodulated.
  • At least one code domain resource corresponding to different paging packets is different.
  • an apparatus for configuring a paging group comprising:
  • an acquisition module configured to acquire paging group information, where the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • a sending module configured to send the paging packet information.
  • a paging detection apparatus comprising:
  • an acquisition module configured to acquire paging group information, where the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • the paging module is configured to perform paging detection based on the paging group where the terminal is located.
  • an access network device is provided, and the access network device includes:
  • memory for storing processor-executable instructions
  • the processor is configured to load and execute the executable instructions to implement the paging group configuration method according to any one of the preceding items.
  • a terminal comprising:
  • memory for storing processor-executable instructions
  • the processor is configured to load and execute the executable instructions to implement the paging detection method according to any one of the foregoing.
  • a computer-readable storage medium when the instructions in the computer-readable storage medium are executed by a processor, the method for configuring a paging group according to any one of the preceding items can be executed , or the paging detection method as described in any of the foregoing can be performed.
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure
  • FIG. 2 is a flowchart of a method for configuring a paging group according to an exemplary embodiment
  • 3 to 5 are schematic structural diagrams of RBs provided by embodiments of the present disclosure.
  • 6 to 8 are schematic diagrams of reference signal transmission positions provided by embodiments of the present disclosure.
  • FIG. 9 is a flow chart of a method for detecting paging according to an exemplary embodiment
  • FIG. 10 is a flow chart of a method for detecting paging according to an exemplary embodiment
  • FIG. 11 is a flow chart of a method for detecting paging according to an exemplary embodiment
  • FIG. 12 is a schematic structural diagram of an apparatus for configuring a paging group according to an exemplary embodiment
  • FIG. 13 is a schematic structural diagram of a paging detection apparatus according to an exemplary embodiment
  • FIG. 14 is a block diagram of a terminal according to an exemplary embodiment
  • Fig. 15 is a block diagram of an access network device according to an exemplary embodiment.
  • first, second, third, etc. may be used in embodiments of the present disclosure to describe various pieces of information, such information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other.
  • the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information.
  • the words "if” and “if” as used herein can be interpreted as "at the time of” or "when” or "in response to determining.”
  • FIG. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure.
  • the communication system may include: a network side 12 and a terminal 13 .
  • the network side 12 includes several access network devices 120 .
  • the access network device 120 may be a base station, and a base station is a device deployed in an access network to provide a wireless communication function for a terminal.
  • the base station may be a base station of a serving cell of the terminal 13 or a base station of a neighboring cell of the serving cell of the terminal 13 .
  • the base station may include various forms of macro base station, micro base station, relay station, access point, transmission reception point (Transmission Reception Point, TRP) and so on.
  • TRP Transmission Reception Point
  • the names of devices with base station functions may be different. In 5G NR systems, they are called gNodeBs or gNBs. With the evolution of communication technology, the name "base station" may be descriptive and will change.
  • the access network device 120 may also be a location management function entity (Location Management Function, LMF).
  • LMF Location Management Function
  • the terminal 13 may include various handheld devices with wireless communication functions, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to the wireless modem, as well as various forms of user equipment, mobile stations (Mobile Station, MS), Terminal, Internet of Things (Internet of Things, IoT), Industrial Internet of Things (Industry Internet of Things, IIoT) and so on.
  • mobile stations Mobile Station, MS
  • Terminal Internet of Things (Internet of Things, IoT), Industrial Internet of Things (Industry Internet of Things, IIoT) and so on.
  • IoT Internet of Things
  • Industrial Internet of Things Industrial Internet of Things
  • TRS/CSI-RS is used for time-frequency synchronization and radio resource management measurement.
  • the TRS includes a plurality of periodically transmitted non-zero power (Non Zero Power, NZP) CSI-RS.
  • the TRS/CSI-RS can also be set near the paging occasion (Paging Occasion, PO) for precise synchronization, that is, if the terminal detects the TRS/CSI-RS at the set position before the PO, then Indicates that there is a short message (Short Message) or a paging message (Paging Message) in the PO, then the terminal should continue to monitor the PO to obtain the short message or paging message. If the terminal does not detect TRS/CSI-RS before the PO, it means that there is no short message or paging message of the terminal in the PO, and the terminal does not need to monitor this PO.
  • Paging Occasion PO
  • the terminal When performing paging detection, the terminal may also be grouped by paging, and the access network device indicates whether a group of terminals has a short message or a paging message through CSI-RS. For example, if the terminal detects the CSI-RS before the PO, it indicates that there are short messages or paging messages of this group of terminals in the PO, and the terminal further detects the physical downlink shared channel (Physical Downlink Shared channel, PDSCH), solve the terminal identification in the message, if it is its own terminal identification, it indicates that it has its own short message or paging message, if the solved message is the identification of other terminals in the group, it indicates that there is no own short message. or paging messages.
  • CSI-RS Physical Downlink shared channel
  • the paging grouping can be performed by using a CSI-RS sequence, and the more the number of paging groups, the more power saving for the terminal.
  • the number of CSI-RS sequences currently, the number of groups that can be grouped based on CSI-RS sequences is small.
  • the communication systems and service scenarios described in the embodiments of the present disclosure are for the purpose of illustrating the technical solutions of the embodiments of the present disclosure more clearly, and do not constitute a limitation on the technical solutions provided by the embodiments of the present disclosure.
  • the evolution of new business scenarios and the emergence of new business scenarios, the technical solutions provided by the embodiments of the present disclosure are also applicable to similar technical problems.
  • Fig. 2 is a flowchart showing a method for configuring a paging group according to an exemplary embodiment. Referring to Figure 2, the method includes the following steps:
  • step 101 the access network device acquires paging group information.
  • the paging group information is used to indicate the paging group where the terminal is located, and the reference signals of different paging groups have different frequency domain offsets. That is, in the embodiment of the present disclosure, the paging group is based on the frequency of the reference signal. Domain offset is implemented. For example, different paging packets have different frequency offsets (Offsets) of resource elements (Resource Elements, REs) that transmit reference signals. One subcarrier in the frequency domain and one symbol in the time domain is called an RE.
  • Offsets frequency offsets
  • REs resource elements
  • the access network device can obtain the paging group information through configuration information, protocol definition or local storage, for example, the access network device can receive the configuration information delivered by other devices on the network side, and the configuration information carries the paging group information;
  • the paging group information is first configured in the local storage of the access network device or in the protocol, and when the access network device uses it, it can be obtained from the protocol definition or the local storage.
  • step 102 the access network device sends the paging packet information.
  • the access network device obtains the paging group information first, and then sends the paging group information to the terminal, so that the terminal can perform paging detection based on the paging group information. Since in the paging group information, different paging groups are distinguished based on the frequency domain offset of the reference signal, compared with the CSI-RS sequence, more groups can be divided, which can further reduce the process of paging detection. The power consumption of the terminal helps to save power of the terminal.
  • the reference signal is TRS/CSI-RS, that is, the reference signal may be TRS or CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively correlated with the interval size between REs occupied by different reference signals.
  • the access network device can transmit the reference signal on one symbol of one resource block (Resource Block, RB).
  • Resource Block Resource Block
  • Figures 3 to 5 show schematic structural diagrams of an RB.
  • An RB includes 14 symbols in the time domain and 12 subcarriers in the frequency domain, and each small square in the figure represents one RE.
  • the access network device may transmit the reference signal on one of the symbols, for example, on symbol 3 .
  • the subcarriers occupied by different paging packets are different, that is, the frequency offsets of the REs of the reference signals of different paging packets are different.
  • FIG. 3 four paging packets are configured.
  • the 4 paging packets are represented by different padding, and each paging packet occupies 4 REs in the RB.
  • each paging group occupies 8 REs in the RB, and at this time, 2 paging groups are configured. Based on FIG. 3 and FIG. 4 , it can be seen that the less the number of REs occupied by the reference signal, the more the number of paging packets that can be configured. As shown in FIG.
  • an interval of one RE is set between the reference signals of different paging packets, and at this time, two paging packets are configured. Based on FIG. 3 and FIG. 5 , it can be seen that the smaller the interval size between the REs occupied by the reference signal, the more the number of paging packets that can be configured.
  • each paging group may correspond to a set of frequency domain offsets, and the frequency domain offsets may be identified by subcarriers.
  • the frequency domain offsets are sub-carriers 3, 7, and 11, respectively.
  • the paging group information includes the frequency domain offset of the reference signal of the paging group where the terminal is located; for example, the paging group information includes subcarrier sequence numbers: 3, 7, 11, subcarriers 3, 7 , 11 are the frequency domain offset of the reference signal of the paging packet.
  • the paging packet information includes the sequence number of the RE.
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the paging group information includes the identifier 00, and the frequency domain offsets associated with the identifier 00 are subcarriers 3, 7, and 11.
  • the access network device can be configured to the access network device through system information in advance, for example, through the system information block (System Information Block (System Information Block)) Information Blocks, SIB).
  • system information block System Information Block (System Information Block)
  • SIB System Information Blocks
  • the sending the paging group information includes:
  • the sending the paging group information includes:
  • DCI Downlink Control Information
  • the configuration information may be system information, radio resource control (Radio Resource Control, RRC) information, and the like.
  • RRC Radio Resource Control
  • the DCI is carried through a Physical Downlink Control Channel (PDCCH).
  • PDCH Physical Downlink Control Channel
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • FIG. 6 is a schematic diagram of a reference signal transmission location provided by an embodiment of the present disclosure. Referring to FIG. 6 , within the PO period, the access network device first performs PDCCH transmission with the terminal, and then performs PDSCH transmission.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH, as shown in FIG. 6 . In this way, the reference signal can realize fine synchronization of PDSCH.
  • the access network device can also indicate in the DCI whether there is a subsequent paging of the group of terminals.
  • the terminal can not only judge whether there is paging based on whether the reference signal is detected at the RE position of the reference signal, but also based on the indication in the DCI
  • the two methods can also be combined to determine whether there is paging, so that the paging detection accuracy of the terminal is higher.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • the time domain position of the reference signal may be located between the PDCCH and the PDSCH, as shown in FIG. 6 .
  • FIG. 7 and FIG. 8 are schematic diagrams of the other two reference signal transmission positions provided by the embodiments of the present disclosure.
  • the time domain position of the reference signal at this time can also be located at Before the PDCCH, or after the PDSCH, as shown in Figures 7 and 8.
  • the PDCCH, PDSCH and reference signal may occupy one symbol respectively.
  • Fig. 9 is a flow chart of a method for detecting paging according to an exemplary embodiment. Referring to Figure 9, the method includes the following steps:
  • step 201 paging group information is acquired.
  • the paging group information is used to indicate the paging group where the terminal is located, and the reference signals of different paging groups have different frequency domain offsets. That is, in the embodiment of the present disclosure, the paging group is based on the frequency of the reference signal. For example, different paging packets have different frequency offsets of REs transmitting reference signals.
  • step 202 paging detection is performed based on the paging group where the terminal is located.
  • the terminal obtains the paging group information first, and then can perform paging detection based on the paging group information. Since in the paging group information, different paging groups are distinguished based on the frequency domain offset of the reference signal, compared with the CSI-RS sequence, more groups can be divided, which can further reduce the process of paging detection. The power consumption of the terminal helps to save power of the terminal.
  • the reference signal is TRS/CSI-RS, that is, the reference signal may be TRS or CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively related to the size of the interval between REs occupied by different reference signals.
  • the paging group information includes a frequency domain offset of a reference signal of a paging group where the terminal is located; or,
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the acquiring paging group information includes:
  • paging group information based on configuration information, protocol definitions or local storage; or,
  • the acquiring paging group information includes:
  • the paging packet information carried by the access network device through the DCI, where the paging packet information includes the frequency domain offset of the reference signal used for PDSCH synchronization, or, the paging packet in the paging packet information
  • the identity is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • the performing paging detection based on the paging group where the terminal is located includes:
  • the terminal Based on the information demodulated from the PDSCH, it is determined whether the terminal has a paging message or a short message.
  • the terminal performs reference signal reception by offsetting the frequency domain of the reference signal, and then determines whether there is paging of the paging packet in the PO. That is, if a reference signal is received, it is considered that the paging of the paging packet exists, and if the reference signal is not received, it is considered that the paging of the paging packet does not exist.
  • the performing paging detection based on the paging group where the terminal is located includes:
  • the terminal Based on the information demodulated from the PDSCH, it is determined whether the terminal has a paging message or a short message.
  • the access network device when transmitting the paging group information through the DCI carried by the PDCCH, the access network device can not only transmit the paging group information by using the DCI, but also indicate in the DCI whether there is subsequent paging of the group of terminals, For example, in DCI, the paging group where the terminal is located is indicated by the identifier 00 of the paging group, and at the same time, the paging group with subsequent paging is indicated as 00, that is, the paging group 00 has a paging message or a short message. At this time, the terminal can determine whether there is a paging of the paging packet based on the indication in the DCI carried on the PDCCH.
  • the above two methods can also be combined to confirm whether there is a paging of the paging packet, that is, when the terminal receives the When the reference signal and the paging group where the terminal is located contains a paging message or a short message, it is determined that there is paging in the paging group.
  • the receiving and demodulating PDSCH includes:
  • the PDSCH is demodulated by sequentially using the code domain resources corresponding to the paging group where the terminal is located, until the PDSCH is successfully demodulated.
  • a corresponding code domain resource may be configured for each paging group, and the corresponding relationship may be first sent to the terminal by the access network device through configuration information.
  • At least one code domain resource corresponding to different paging packets is different.
  • different code domain resources may be configured for different paging packets, that is, the TRS corresponding to different paging packets /CSI-RS sequences are different.
  • the terminal can first buffer the PDSCH, and then determine whether to perform the PDSCH after receiving the TRS/CSI-RS. demodulation.
  • Fig. 10 is a flowchart showing a method for detecting a page according to an exemplary embodiment. Referring to Figure 10, the method includes the following steps:
  • step 301 the access network device acquires paging group information.
  • the paging group information is used to indicate the paging group where the terminal is located, and the reference signals of different paging groups have different frequency domain offsets. That is, in the embodiment of the present disclosure, the paging group is based on the frequency of the reference signal. Domain offset is implemented, for example, for different paging packets, the frequency offset of the R) of the transmission reference signal is different.
  • the access network device can obtain the paging group information through configuration information, protocol definition or local storage, for example, the access network device can receive the configuration information delivered by other devices on the network side, and the configuration information carries the paging group information;
  • the paging group information is first configured in the local storage of the access network device or in the protocol, and when the access network device uses it, it can be obtained from the protocol definition or the local storage.
  • step 302 the access network device sends the paging packet information.
  • the terminal receives the paging packet information.
  • the access network device and the terminal may transmit the paging packet information through configuration information or DCI.
  • step 303 the terminal receives the reference signal according to the frequency domain offset of the reference signal of the paging group where the terminal is located.
  • the terminal performs the reception of the reference signal on the subcarriers occupied by the transmission of the reference signal (with a position in the time domain) or the occupied RE.
  • step 304 the terminal receives and demodulates the PDSCH in response to the terminal receiving the reference signal.
  • This step may include: determining at least one code domain resource corresponding to the paging group where the terminal is located; sequentially using the code domain resource corresponding to the paging group where the terminal is located to demodulate the PDSCH, until successfully demodulating all the code domain resources. described PDSCH.
  • a corresponding code domain resource may be configured for each paging group, and the corresponding relationship may be first sent to the terminal by the access network device through configuration information.
  • At least one code domain resource corresponding to different paging packets is different.
  • different code domain resources may be configured for different paging packets, that is, the TRS corresponding to different paging packets /CSI-RS sequences are different.
  • the two paging packets can be configured with completely different code domain resources, that is, configured with completely different TRS/CSI-RS sequences;
  • the code domain resources configured by the two paging packets may be partially the same, that is, part of the TRS/CSI-RS sequence may be multiplexed.
  • the frequency difference between the first group and the second group in the frequency domain is small, and the TRS/CSI of the two groups are at this time.
  • the RS sequences may be completely different, and the frequency difference between the first group and the fourth group in the frequency domain is slightly larger, and the TRS/CSI-RS sequences of the two groups may be partially the same at this time.
  • the threshold here may be the frequency domain width of REs corresponding to one TRS/CSI-RS sequence.
  • the frequency difference in the frequency domain of each group is small, and at least one TRS/CSI-RS sequence corresponding to different paging groups is different.
  • the terminal can first buffer the PDSCH, and then determine whether to perform the PDSCH after receiving the TRS/CSI-RS. demodulation.
  • step 305 the terminal determines whether the terminal has a paging message or a short message based on the information demodulated from the PDSCH.
  • the information demodulated from the PDSCH includes the identifier of the terminal, it indicates that there is a paging message or short message of the terminal. If the information demodulated from the PDSCH does not contain the identifier of the terminal, it means that there is no paging message or short message of the terminal.
  • Fig. 11 is a flowchart showing a method for detecting a page according to an exemplary embodiment. Referring to Figure 11, the method includes the following steps:
  • step 401 the access network device acquires paging group information.
  • step 301 The detailed process of this step is the same as that of step 301 .
  • step 402 the access network device sends the paging packet information.
  • the terminal receives the paging packet information.
  • step 302 The detailed process of this step is the same as that of step 302 .
  • step 403 the terminal confirms whether there is a paging message or a short message in the paging group where the terminal is located based on the PDCCH.
  • the access network device when transmitting the paging group information through the DCI carried by the PDCCH, the access network device can not only transmit the paging group information by using the DCI, but also indicate in the DCI whether there is subsequent paging of the group of terminals, For example, in DCI, the paging group where the terminal is located is indicated by the identifier 00 of the paging group, and at the same time, the paging group with subsequent paging is indicated as 00, that is, the paging group 00 has a paging message or a short message. At this time, the terminal can determine whether there is a paging of the paging packet based on the indication in the DCI carried on the PDCCH.
  • step 404 the terminal receives and demodulates the PDSCH in response to a paging message or a short message in the paging group where the terminal is located.
  • the step of decoding the PDSCH may refer to step 304.
  • step 405 the terminal determines whether the terminal has a paging message or a short message based on the information demodulated from the PDSCH.
  • step 305 The detailed process of this step is the same as that of step 305 .
  • Fig. 12 is a schematic structural diagram of an apparatus for configuring a paging group according to an exemplary embodiment.
  • the apparatus has the function of implementing the access network equipment in the above method embodiments, and the function may be implemented by hardware or by executing corresponding software in hardware.
  • the apparatus includes: an obtaining module 401 and a sending module 402 .
  • the obtaining module 401 is configured to obtain paging group information, where the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • the sending module 402 is configured to send the paging group information.
  • the reference signal is TRS/CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively correlated with the interval size between REs occupied by different reference signals.
  • the paging group information includes a frequency domain offset of a reference signal of a paging group where the terminal is located; or,
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the sending module 402 is configured to send the paging group information to the terminal through configuration information; or,
  • a sending module 402 configured to send the DCI carrying the paging group information to the terminal, where the paging group information includes a frequency domain offset of a reference signal used for PDSCH synchronization, or the paging group
  • the identification of the paging packet in the information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • Fig. 13 is a schematic structural diagram of a paging detection apparatus according to an exemplary embodiment.
  • the apparatus has the function of realizing the terminal in the above method embodiment, and the function may be realized by hardware, or by executing corresponding software in hardware.
  • the apparatus includes: an acquisition module 501 and a paging module 502 .
  • the obtaining module 501 is configured to obtain paging group information, where the paging group information is used to indicate the paging group where the terminal is located, and the frequency domain offsets of the reference signals of different paging groups are different;
  • the paging module 502 is configured to perform paging detection based on the paging group where the terminal is located.
  • the reference signal is TRS/CSI-RS.
  • the number of paging packets is negatively correlated with the number of REs occupied by the reference signal
  • the number of the paging packets is negatively related to the size of the interval between REs occupied by different reference signals.
  • the paging group information includes a frequency domain offset of a reference signal of a paging group where the terminal is located; or,
  • the paging group information includes an identifier of the paging group, and the identifier of the paging group is associated with a frequency domain offset of a reference signal of the paging group.
  • the obtaining module 501 is configured to obtain the paging group information based on configuration information, protocol definition or local storage; or,
  • the acquiring module 501 is configured to receive the paging group information carried by the access network device through the DCI, where the paging group information includes a frequency domain offset of a reference signal used for PDSCH synchronization, or, the paging group
  • the identification of the paging packet in the information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
  • the time domain position of the reference signal is located between the PDCCH and the PDSCH.
  • the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
  • the paging module 502 is configured to receive the reference signal according to the frequency domain offset of the reference signal of the paging group where the terminal is located; in response to the terminal receiving the reference signal, receive and decode the reference signal. modulate the PDSCH; determine whether the terminal has a paging message or a short message based on the information demodulated from the PDSCH.
  • the paging module 502 is configured to confirm whether the paging group where the terminal is located has a paging message or a short message based on the PDCCH; in response to the paging group where the terminal is located has a paging message or a short message, Receive and demodulate the PDSCH; based on the information demodulated from the PDSCH, determine whether the terminal has a paging message or a short message.
  • the paging module 502 is configured to determine at least one code domain resource corresponding to the paging group where the terminal is located; and sequentially use the code domain resource corresponding to the paging group where the terminal is located to perform the PDSCH decoding. until the PDSCH is successfully demodulated.
  • At least one code domain resource corresponding to different paging packets is different.
  • FIG. 14 is a block diagram of a terminal 600 according to an exemplary embodiment.
  • the terminal 600 may include: a processor 601 , a receiver 602 , a transmitter 603 , a memory 604 and a bus 605 .
  • the processor 601 includes one or more processing cores, and the processor 601 executes various functional applications and information processing by running software programs and modules.
  • the receiver 602 and the transmitter 603 may be implemented as a communication component, which may be a communication chip.
  • the memory 604 is connected to the processor 601 through the bus 605 .
  • the memory 604 may be configured to store at least one instruction, and the processor 601 may be configured to execute the at least one instruction to implement the various steps in the above method embodiments.
  • memory 604 may be implemented by any type or combination of volatile or non-volatile storage devices including, but not limited to, magnetic or optical disks, electrically erasable programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Static Anytime Access Memory (SRAM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Programmable Read Only Memory (PROM) .
  • EEPROM electrically erasable programmable Read Only Memory
  • EPROM Erasable Programmable Read Only Memory
  • SRAM Static Anytime Access Memory
  • ROM Read Only Memory
  • Magnetic Memory Magnetic Memory
  • Flash Memory Programmable Read Only Memory
  • a computer-readable storage medium stores at least one instruction, at least one piece of program, code set or instruction set, the at least one instruction, the At least one section of the program, the code set or the instruction set is loaded and executed by the processor to implement the paging detection method provided by each of the above method embodiments.
  • FIG. 15 is a block diagram of an access network device 700 according to an exemplary embodiment.
  • the access network device 700 may include: a processor 701 , a receiver 702 , a transmitter 703 and a memory 704 .
  • the receiver 702, the transmitter 703 and the memory 704 are respectively connected to the processor 701 through a bus.
  • the processor 701 includes one or more processing cores, and the processor 701 executes the method performed by the access network device in the communication method provided by the embodiment of the present disclosure by running software programs and modules.
  • Memory 704 may be used to store software programs and modules. Specifically, the memory 704 may store an operating system 7041 and an application program module 7042 required for at least one function.
  • the receiver 702 is used for receiving communication data sent by other devices, and the transmitter 703 is used for sending communication data to other devices.
  • a computer-readable storage medium stores at least one instruction, at least one piece of program, code set or instruction set, the at least one instruction, the At least one piece of program, the code set or the instruction set is loaded and executed by the processor to implement the paging group configuration method provided by each of the above method embodiments.
  • An exemplary embodiment of the present disclosure also provides a communication system, where the communication system includes a terminal and an access network device.
  • the terminal is the terminal provided by the embodiment shown in FIG. 14 .
  • the access network device is the access network device provided in the embodiment shown in FIG. 15 .

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Abstract

本公开是关于一种寻呼分组配置、寻呼检测方法、装置、接入网设备和终端，属于通信技术领域。所述方法包括：获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；发送所述寻呼分组信息。

Description

寻呼分组配置、寻呼检测方法、装置、接入网设备和终端 技术领域
本公开涉及通信技术领域，尤其涉及一种寻呼分组配置、寻呼检测方法、装置、接入网设备和终端。
背景技术
在5G新空口(NR，New Radio)R17阶段的标准讨论中，提出了用于空闲态终端的跟踪参考信号/信道状态信息参考信号(Tracking Reference Signal/Channel State Information Reference Signal，TRS/CSI-RS)。接入网设备会为空闲态的终端发送TRS/CSI-RS用于时频同步、无线资源管理测量(Radio Resource Management，RRM)。
发明内容
本公开实施例提供了一种寻呼分组配置、寻呼检测方法、装置、接入网设备和终端。所述技术方案如下：
根据本公开实施例的一方面，提供一种寻呼分组配置方法，所述方法包括：
获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
发送所述寻呼分组信息。
可选地，所述参考信号为TRS/CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的所述参考信号所占用的RE间的间隔大小负相关。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
可选地，所述发送所述寻呼分组信息，包括：
通过配置信息向所述终端发送所述寻呼分组信息；或者，
所述发送所述寻呼分组信息，包括：
向所述终端发送携带有所述寻呼分组信息的DCI，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
可选地，当通过所述DCI发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH和PDSCH之间。
可选地，当通过所述配置信息发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于PDCCH和PDSCH之间。
根据本公开实施例的一方面，提供一种寻呼检测方法，所述方法包括：
获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
基于所述终端所在的寻呼分组进行寻呼检测。
可选地，所述参考信号为TRS/CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的参考信号所占用的RE间的间隔大小负相关。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
可选地，所述获取寻呼分组信息，包括：
基于配置信息、协议定义或本地存储获取所述寻呼分组信息；或者，
所述获取寻呼分组信息，包括：
接收接入网设备通过DCI携带的所述寻呼分组信息，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
可选地，当通过所述DCI获取所述寻呼分组信息时，所述参考信号的时域 位置位于PDCCH和PDSCH之间。
可选地，当通过所述配置信息、协议定义或本地存储获取所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于PDCCH和PDSCH之间。
可选地，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
根据所述终端所在的寻呼分组的参考信号的频域偏移接收所述参考信号；
响应于所述终端接收到所述参考信号，接收并解调PDSCH；
基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
可选地，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
基于PDCCH确认所述终端所在的寻呼分组是否有寻呼消息或短消息；
响应于所述终端所在的寻呼分组有寻呼消息或短消息，接收并解调PDSCH；
基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
可选地，所述接收并解调PDSCH，包括：
确定所述终端所在的寻呼分组对应的至少一个码域资源；
依次采用所述终端所在的寻呼分组对应的码域资源进行所述PDSCH的解调，直到成功解调所述PDSCH。
可选地，不同的所述寻呼分组对应的至少一个码域资源不相同。
根据本公开实施例的一方面，提供一种寻呼分组配置装置，所述装置包括：
获取模块，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
发送模块，被配置为发送所述寻呼分组信息。
根据本公开实施例的一方面，提供一种寻呼检测装置，所述装置包括：
获取模块，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
寻呼模块，被配置为基于所述终端所在的寻呼分组进行寻呼检测。
根据本公开实施例的一方面，提供一种接入网设备，所述接入网设备包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为加载并执行所述可执行指令以实现如前述任一项所述的寻呼分组配置方法。
根据本公开实施例的一方面，提供一种终端，所述终端包括：
处理器；
用于存储处理器可执行指令的存储器；
其中，所述处理器被配置为加载并执行所述可执行指令以实现如前述任一项所述的寻呼检测方法。
根据本公开实施例的一方面，提供一种计算机可读存储介质，当所述计算机可读存储介质中的指令由处理器执行时，能够执行如前述任一项所述的寻呼分组配置方法，或者能够执行如前述任一项所述的寻呼检测方法。
应当理解的是，以上的一般描述和后文的细节描述仅是示例性和解释性的，并不能限制本公开。
附图说明
此处的附图被并入说明书中并构成本说明书的一部分，示出了符合本公开的实施例，并与说明书一起用于解释本公开的原理。
图1示出的是本公开一个示意性实施例提供的通信系统的框图；
图2是根据一示例性实施例示出的一种寻呼分组配置方法的流程图；
图3～图5是本公开实施例提供的RB的结构示意图；
图6～图8是本公开实施例提供的参考信号传输位置示意图；
图9是根据一示例性实施例示出的一种寻呼检测方法的流程图；
图10是根据一示例性实施例示出的一种寻呼检测方法的流程图；
图11是根据一示例性实施例示出的一种寻呼检测方法的流程图；
图12是根据一示例性实施例示出的一种寻呼分组配置装置的结构示意图；
图13是根据一示例性实施例示出的一种寻呼检测装置的结构示意图；
图14是根据一示例性实施例示出的一种终端的框图；
图15是根据一示例性实施例示出的一种接入网设备的框图。
具体实施方式
这里将详细地对示例性实施例进行说明，其示例表示在附图中。下面的描述涉及附图时，除非另有表示，不同附图中的相同数字表示相同或相似的要素。以下示例性实施例中所描述的实施方式并不代表与本公开相一致的所有实施方式。相反，它们仅是与如所附权利要求书中所详述的、本公开的一些方面相一致的装置和方法的例子。
在本公开实施例使用的术语是仅仅出于描述特定实施例的目的，而非旨在限制本公开实施例。在本公开实施例和所附权利要求书中所使用的单数形式的“一种”和“该”也旨在包括多数形式，除非上下文清楚地表示其他含义。还应当理解，本文中使用的术语“和/或”是指并包含一个或多个相关联的列出项目的任何或所有可能组合。
应当理解，尽管在本公开实施例可能采用术语第一、第二、第三等来描述各种信息，但这些信息不应限于这些术语。这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本公开实施例范围的情况下，第一信息也可以被称为第二信息，类似地，第二信息也可以被称为第一信息。取决于语境，如在此所使用的词语“如果”及“若”可以被解释成为“在……时”或“当……时”或“响应于确定”。
应当理解，尽管在本公开实施例为了便于理解而编号的方式对步骤进行了说明，但是这些编号并不代表步骤的执行顺序，也并不代表采用顺序编号的步骤必须在一起执行。应当理解，采用顺序编号的多个步骤中的一个或几个步骤可以单独执行以解决相应的技术问题并达到预定的技术方案。即使是在附图中被示例性的列在一起的多个步骤，并不代表这些步骤必须被一起执行；附图只是为了便于理解而示例性的将这些步骤列在了一起。
图1示出的是本公开一个示意性实施例提供的通信系统的框图，如图1所示，该通信系统可以包括：网络侧12和终端13。
网络侧12中包括若干接入网设备120。接入网设备120可以是基站，基站是一种部署在接入网中用以为终端提供无线通信功能的装置。该基站既可以是终端13的服务小区的基站，也可以是终端13的服务小区相邻小区的基站。基站可以包括各种形式的宏基站，微基站，中继站，接入点、发送接收点(Transmission Reception Point，TRP)等等。在采用不同的无线接入技术的系统 中，具备基站功能的设备的名称可能会有所不同，在5G NR系统中，称为gNodeB或者gNB。随着通信技术的演进，“基站”这一名称可能描述，会变化。接入网设备120也可以是定位管理功能实体(Location Management Function，LMF)。
终端13可以包括各种具有无线通信功能的手持设备、车载设备、可穿戴设备、计算设备或连接到无线调制解调器的其他处理设备，以及各种形式的用户设备，移动台(Mobile Station，MS)，终端，物联网设备(Internet of Things,IoT),工业物联网设备(Industry Internet of Things,IIoT)等等。为方便描述，上面提到的设备统称为终端。接入网设备120与终端13之间通过某种空口技术互相通信，例如Uu接口。
在5G NR R17阶段的标准讨论中，提出了用于空闲态终端的TRS/CSI-RS的方案。TRS/CSI-RS用于时频同步、无线资源管理测量。其中，TRS包含多个周期性发送的非零功率(Non Zero Power，NZP)CSI-RS。
除此之外，还可以将TRS/CSI-RS设置在寻呼时机(Paging Occasion，PO)附近用来做精确同步，即如果终端在PO前的设定位置检测到了TRS/CSI-RS，则表示在该PO中有短消息(Short Message)或者寻呼消息(Paging Message)，那么终端就要继续监听该PO以获得该短消息或者寻呼消息。如果终端在该PO之前没有检测到TRS/CSI-RS，则表示在该PO中没有该终端的短消息或者寻呼消息，那么终端就不需要监听这个PO。
在进行寻呼检测时，还可以对终端进行寻呼分组，接入网设备通过CSI-RS指示一组终端是否有短消息或者寻呼消息。例如，如果终端在PO前确定位置检测到了CSI-RS，则表明在这个PO中有这一组终端的短消息或者寻呼消息，终端进一步检测PO中的物理下行共享信道(Physical Downlink Shared channel，PDSCH)，解出消息中的终端标识，如果是自己的终端标识则表明有自己的短消息或者寻呼消息，如果解出消息中是该组中别的终端标识，则表明没有自己的短消息或者寻呼消息。
这里，寻呼分组可以采用CSI-RS序列进行，寻呼分组数量越多，则对于终端而言越省电。但受限于CSI-RS序列的数量，目前，基于CSI-RS序列的分组，能够分组的数量较少。
本公开实施例描述的通信系统以及业务场景是为了更加清楚地说明本公开实施例的技术方案，并不构成对本公开实施例提供的技术方案的限定，本领域普通技术人员可知，随着通信系统的演变和新业务场景的出现，本公开实施例 提供的技术方案对于类似的技术问题，同样适用。
图2是根据一示例性实施例示出的一种寻呼分组配置方法的流程图。参见图2，该方法包括以下步骤：
在步骤101中，接入网设备获取寻呼分组信息。
其中，寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同，也即在本公开实施例中，寻呼分组基于参考信号的频域偏移来实现，例如不同的寻呼分组，传输参考信号的资源粒子(Resource Element，RE)的频率偏移(Offset)不同。频域上一个子载波及时域上一个符号(symbol)称为一个RE。
其中，接入网设备可以通过配置信息、协议定义或本地存储获取寻呼分组信息，例如接入网设备可以接收网络侧其他设备下发的配置信息，配置信息中携带有该寻呼分组信息；或者，先在接入网设备的本地存储或者协议中配置寻呼分组信息，接入网设备使用时，从协议定义或本地存储中获取即可。
在步骤102中，接入网设备发送所述寻呼分组信息。
在本公开实施例中，接入网设备通过先获取寻呼分组信息，然后将寻呼分组信息发送给终端，使得终端可以基于该寻呼分组信息，进行寻呼检测。由于在该寻呼分组信息中，不同寻呼分组是基于参考信号的频域偏移来区分的，相比于CSI-RS序列，可以划分出更多分组，从而可以进一步降低寻呼检测过程中终端的功耗，有助于终端省电。
可选地，所述参考信号为TRS/CSI-RS，也即该参考信号可以为TRS或CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的所述参考信号所占用的RE间的间隔大小负相关。
通常，接入网设备可以在1个资源块(Resource Block，RB)的一个符号上进行参考信号的发送。
如图3至5示出了一个RB的结构示意图，一个RB在时域上包括14个符号，在频域上包括12个子载波，图中每一个小方块代表1个RE。接入网设备可以在其中一个符号上进行参考信号的发送，例如在符号3上。
在频域上，不同的寻呼分组占用的子载波不同，也即不同寻呼分组的参考信号的RE的频率偏移不同。如图3所示，配置有4个寻呼分组。4个寻呼分组用不同的填充表示，每个寻呼分组在该RB中占用4个RE。如图4所示，每个寻呼分组在该RB中占用8个RE，此时至配置有2个寻呼分组。基于图3和图4，可以看出，参考信号所占用的RE的数量越少，可以配置的寻呼分组的数量越多。如图5所示，不同寻呼分组的参考信号之间设置有1个RE的间隔，此时至配置有2个寻呼分组。基于图3和图5，可以看出，参考信号所占用的RE间的间隔大小越小，可以配置的寻呼分组的数量越多。
另外，从图3至图5还可以看出，每个寻呼分组可以对应一组频域偏移，频域偏移可以以子载波来标识，以图3为例，其中一个寻呼分组对应的频域偏移分别为子载波3、7、11。
示例性地，默认情况下，只有一个寻呼分组，也即所有子载波均属于一个寻呼分组。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；例如，寻呼分组信息包括子载波序号：3、7、11，子载波3、7、11即为寻呼分组的参考信号的频域偏移。或者，寻呼分组信息包括RE的序号。
或者，所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。例如，寻呼分组信息包括标识00，而该标识00关联的频域偏移为子载波3、7、11。
其中，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移的对应关系，接入网设备可以事先通过系统信息配置给接入网设备，例如通过系统信息块(System Information Blocks，SIB)。
可选地，所述发送所述寻呼分组信息，包括：
通过配置信息向所述终端发送所述寻呼分组信息；或者，
所述发送所述寻呼分组信息，包括：
向所述终端发送携带有所述寻呼分组信息的下行控制信息(Downlink Control Information，DCI)，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
其中，配置信息可以是系统信息、无线资源控制(Radio Resource Control，RRC)信息等。
其中，DCI通过物理下行控制信道(Physical Downlink Control Channel，PDCCH)承载。
可选地，当通过所述DCI发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH和PDSCH之间。
图6是本公开实施例提供的一种参考信号传输位置示意图，参见图6，在PO的时间内，接入网设备先与终端进行PDCCH传输，然后进行PDSCH传输。
如果采用PDCCH承载的DCI传输寻呼分组信息，则此时参考信号的时域位置位于PDCCH和PDSCH之间，如图6所示。这种方式下，参考信号可以实现PDSCH的精同步。
在这种情况下，接入网设备除了利用DCI传输寻呼分组信息外，还可以在DCI中指示后续是否有该组终端的寻呼，例如，在DCI中通过寻呼分组的标识00指示终端所在的寻呼分组，且同时指示后续有寻呼的寻呼分组为00，则终端不但可以基于在参考信号的RE位置是否检测到参考信号来判断是否有寻呼，也可以基于DCI中的指示确定是否有寻呼，也可以将两种方式结合确定是否有寻呼，使得终端的寻呼检测精度更高。
可选地，当通过所述配置信息发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于PDCCH和PDSCH之间。
在采用配置信息传输寻呼分组信息时，参考信号的时域位置可以位于PDCCH和PDSCH之间，如图6所示。
图7和图8是本公开实施例提供的另外两种参考信号传输位置示意图，参见图7和图8，如果采用配置信息传输寻呼分组信息，则此时参考信号的时域位置还可以位于PDCCH之前、或位于PDSCH之后，如图7和8所示。
在时域上，PDCCH、PDSCH和参考信号可以分别占用一个符号。
值得说明的是，前述步骤101～步骤102与上述可选步骤可以任意组合。
图9是根据一示例性实施例示出的一种寻呼检测方法的流程图。参见图9，该方法包括以下步骤：
在步骤201中，获取寻呼分组信息。
其中，寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同，也即在本公开实施例中，寻呼分组基于参考信号 的频域偏移来实现，例如不同的寻呼分组，传输参考信号的RE的频率偏移不同。
在步骤202中，基于所述终端所在的寻呼分组进行寻呼检测。
在本公开实施例中，终端通过先获取寻呼分组信息，然后可以基于该寻呼分组信息，进行寻呼检测。由于在该寻呼分组信息中，不同寻呼分组是基于参考信号的频域偏移来区分的，相比于CSI-RS序列，可以划分出更多分组，从而可以进一步降低寻呼检测过程中终端的功耗，有助于终端省电。
可选地，所述参考信号为TRS/CSI-RS，也即该参考信号可以为TRS或CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的参考信号所占用的RE间的间隔大小负相关。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
可选地，所述获取寻呼分组信息，包括：
基于配置信息、协议定义或本地存储获取所述寻呼分组信息；或者，
所述获取寻呼分组信息，包括：
接收接入网设备通过DCI携带的所述寻呼分组信息，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
可选地，当通过所述DCI获取所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH和PDSCH之间。
可选地，当通过所述配置信息、协议定义或本地存储获取所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于PDCCH和PDSCH之间。
可选地，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
根据所述终端所在的寻呼分组的参考信号的频域偏移接收所述参考信号；
响应于所述终端接收到所述参考信号，接收并解调PDSCH；
基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
在该实现方式中，终端通过在参考信号的频域偏移出进行参考信号接收， 进而确定PO中是否存在该寻呼分组的寻呼。也即如果接收到参考信号，则认为存在该寻呼分组的寻呼，如果没用接收到参考信号，则认为不存在该寻呼分组的寻呼。
可选地，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
基于PDCCH确认所述终端所在的寻呼分组是否有寻呼消息或短消息；
响应于所述终端所在的寻呼分组有寻呼消息或短消息，接收并解调PDSCH；
基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
如前所示，在通过PDCCH承载的DCI进行寻呼分组信息的传输时，接入网设备除了利用DCI传输寻呼分组信息外，还可以在DCI中指示后续是否有该组终端的寻呼，例如，在DCI中通过寻呼分组的标识00指示终端所在的寻呼分组，且同时指示后续有寻呼的寻呼分组为00，也即寻呼分组00有寻呼消息或短消息。此时，终端即可基于PDCCH承载的DCI中的指示确定是否有该寻呼分组的寻呼。
在本公开实施例中，当参考信号的时域位置位于PDCCH和PDSCH之间时，也可以结合上述两种方式来确认是否有该寻呼分组的寻呼，也即，在终端接收到所述参考信号、且终端所在的寻呼分组有寻呼消息或短消息时，确定有该寻呼分组的寻呼。
可选地，所述接收并解调PDSCH，包括：
确定所述终端所在的寻呼分组对应的至少一个码域资源；
依次采用所述终端所在的寻呼分组对应的码域资源进行所述PDSCH的解调，直到成功解调所述PDSCH。
在本公开实施例中，可以为每个寻呼分组配置对应的码域资源，该对应关系可以由接入网设备通过配置信息先发送给终端。
可选地，不同的所述寻呼分组对应的至少一个码域资源不相同。
在本公开实施例中，由于不同的寻呼分组在频域上相隔较近，为了保证传输准确性，可以为不同的寻呼分组配置不同的码域资源，也即不同寻呼分组对应的TRS/CSI-RS序列不同。
需要说明的是，如果采用图7所示的时序结构，由于TRS/CSI-RS位于PDSCH之后，此时，终端可以先缓存PDSCH，然后在接收到TRS/CSI-RS后，再确定是否进行PDSCH的解调。
值得说明的是，前述步骤201～步骤202与上述可选步骤可以任意组合。
图10是根据一示例性实施例示出的一种寻呼检测方法的流程图。参见图10，该方法包括以下步骤：
在步骤301中，接入网设备获取寻呼分组信息。
其中，寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同，也即在本公开实施例中，寻呼分组基于参考信号的频域偏移来实现，例如不同的寻呼分组，传输参考信号的R)的频率偏移不同。
其中，接入网设备可以通过配置信息、协议定义或本地存储获取寻呼分组信息，例如接入网设备可以接收网络侧其他设备下发的配置信息，配置信息中携带有该寻呼分组信息；或者，先在接入网设备的本地存储或者协议中配置寻呼分组信息，接入网设备使用时，从协议定义或本地存储中获取即可。
在步骤302中，接入网设备发送所述寻呼分组信息。终端接收寻呼分组信息。
在本公开实施例中，接入网设备和终端可以通过配置信息或者DCI传输寻呼分组信息。
在步骤303中，终端根据所述终端所在的寻呼分组的参考信号的频域偏移接收所述参考信号。
例如，终端在参考信号传输占用的子载波(结合时域有位置)或者占用的RE上进行参考信号的接收。
在步骤304中，终端响应于所述终端接收到所述参考信号，接收并解调PDSCH。
该步骤可以包括：确定所述终端所在的寻呼分组对应的至少一个码域资源；依次采用所述终端所在的寻呼分组对应的码域资源进行所述PDSCH的解调，直到成功解调所述PDSCH。
在本公开实施例中，可以为每个寻呼分组配置对应的码域资源，该对应关系可以由接入网设备通过配置信息先发送给终端。
可选地，不同的所述寻呼分组对应的至少一个码域资源不相同。
在本公开实施例中，由于不同的寻呼分组在频域上相隔较近，为了保证传输准确性，可以为不同的寻呼分组配置不同的码域资源，也即不同寻呼分组对应的TRS/CSI-RS序列不同。
示例性地，当两个寻呼分组在频域上频差未超过阈值时，两个寻呼分组可 以配置完全不同的码域资源，也即配置完全不同的TRS/CSI-RS序列；当两个寻呼分组在频域上频差超过阈值时，则两个寻呼分组配置的码域资源可以部分相同，也即可以复用部分TRS/CSI-RS序列。如图3所示，对于4个寻呼分组而言，按照从上到下分为4组的话，则第一组和第二组频域上频差较小，此时二者的TRS/CSI-RS序列可以完全不同，第一组和第四组频域上频差稍大，此时二者的TRS/CSI-RS序列可以部分相同。
示例性地，这里的阈值可以为1个TRS/CSI-RS序列对应的RE的频域宽度。通常，如图3～5所示，各个分组频域上频差较小，不同的寻呼分组对应的至少一个TRS/CSI-RS序列不相同。
需要说明的是，如果采用图7所示的时序结构，由于TRS/CSI-RS位于PDSCH之后，此时，终端可以先缓存PDSCH，然后在接收到TRS/CSI-RS后，再确定是否进行PDSCH的解调。
在步骤305中，终端基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
例如，如果从PDSCH解调出的信息中包含该终端的标识，则表明有该终端的寻呼消息或短消息。如果从PDSCH解调出的信息中不包含该终端的标识，则表明没有该终端的寻呼消息或短消息。
图11是根据一示例性实施例示出的一种寻呼检测方法的流程图。参见图11，该方法包括以下步骤：
在步骤401中，接入网设备获取寻呼分组信息。
该步骤的详细过程与步骤301相同。
在步骤402中，接入网设备发送所述寻呼分组信息。终端接收寻呼分组信息。
该步骤的详细过程与步骤302相同。
在步骤403中，终端基于PDCCH确认所述终端所在的寻呼分组是否有寻呼消息或短消息。
如前所示，在通过PDCCH承载的DCI进行寻呼分组信息的传输时，接入网设备除了利用DCI传输寻呼分组信息外，还可以在DCI中指示后续是否有该组终端的寻呼，例如，在DCI中通过寻呼分组的标识00指示终端所在的寻呼分组，且同时指示后续有寻呼的寻呼分组为00，也即寻呼分组00有寻呼消息或短 消息。此时，终端即可基于PDCCH承载的DCI中的指示确定是否有该寻呼分组的寻呼。
在步骤404中，终端响应于所述终端所在的寻呼分组有寻呼消息或短消息，接收并解调PDSCH。
其中解码PDSCH的步骤可以参考步骤304。
在步骤405中，终端基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
该步骤的详细过程与步骤305相同。
图12是根据一示例性实施例示出的一种寻呼分组配置装置的结构示意图。该装置具有实现上述方法实施例中接入网设备的功能，该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。如图12所示，该装置包括：获取模块401和发送模块402。
其中，获取模块401，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
发送模块402，被配置为发送所述寻呼分组信息。
可选地，所述参考信号为TRS/CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的所述参考信号所占用的RE间的间隔大小负相关。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
可选地，发送模块402，被配置为通过配置信息向所述终端发送所述寻呼分组信息；或者，
发送模块402，被配置为向所述终端发送携带有所述寻呼分组信息的DCI，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
可选地，当通过所述DCI发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH和PDSCH之间。
可选地，当通过所述配置信息发送所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于PDCCH和PDSCH之间。
图13是根据一示例性实施例示出的一种寻呼检测装置的结构示意图。该装置具有实现上述方法实施例中终端的功能，该功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。如图13所示，该装置包括：获取模块501和寻呼模块502。
其中，获取模块501，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
寻呼模块502，被配置为基于所述终端所在的寻呼分组进行寻呼检测。
可选地，所述参考信号为TRS/CSI-RS。
可选地，所述寻呼分组的数量与所述参考信号所占用的RE的数量负相关；以及
所述寻呼分组的数量与不同的参考信号所占用的RE间的间隔大小负相关。
可选地，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
可选地，获取模块501，被配置为基于配置信息、协议定义或本地存储获取所述寻呼分组信息；或者，
获取模块501，被配置为接收接入网设备通过DCI携带的所述寻呼分组信息，所述寻呼分组信息包括用于PDSCH同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于PDSCH同步的参考信号的频域偏移相关联。
可选地，当通过所述DCI获取所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH和PDSCH之间。
可选地，当通过所述配置信息、协议定义或本地存储获取所述寻呼分组信息时，所述参考信号的时域位置位于PDCCH之前、位于PDSCH之后或者位于 PDCCH和PDSCH之间。
可选地，寻呼模块502，被配置为根据所述终端所在的寻呼分组的参考信号的频域偏移接收所述参考信号；响应于所述终端接收到所述参考信号，接收并解调PDSCH；基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
可选地，寻呼模块502，被配置为基于PDCCH确认所述终端所在的寻呼分组是否有寻呼消息或短消息；响应于所述终端所在的寻呼分组有寻呼消息或短消息，接收并解调PDSCH；基于所述PDSCH解调出的信息，确定所述终端是否有寻呼消息或短消息。
可选地，寻呼模块502，被配置为确定所述终端所在的寻呼分组对应的至少一个码域资源；依次采用所述终端所在的寻呼分组对应的码域资源进行所述PDSCH的解调，直到成功解调所述PDSCH。
可选地，不同的所述寻呼分组对应的至少一个码域资源不相同。
图14是根据一示例性实施例示出的一种终端600的框图，该终端600可以包括：处理器601、接收器602、发射器603、存储器604和总线605。
处理器601包括一个或者一个以上处理核心，处理器601通过运行软件程序以及模块，从而执行各种功能应用以及信息处理。
接收器602和发射器603可以实现为一个通信组件，该通信组件可以是一块通信芯片。
存储器604通过总线605与处理器601相连。
存储器604可用于存储至少一个指令，处理器601用于执行该至少一个指令，以实现上述方法实施例中的各个步骤。
此外，存储器604可以由任何类型的易失性或非易失性存储设备或者它们的组合实现，易失性或非易失性存储设备包括但不限于：磁盘或光盘，电可擦除可编程只读存储器(EEPROM)，可擦除可编程只读存储器(EPROM)，静态随时存取存储器(SRAM)，只读存储器(ROM)，磁存储器，快闪存储器，可编程只读存储器(PROM)。
在示例性实施例中，还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行 以实现上述各个方法实施例提供的寻呼检测方法。
图15是根据一示例性实施例示出的一种接入网设备700的框图，接入网设备700可以包括：处理器701、接收机702、发射机703和存储器704。接收机702、发射机703和存储器704分别通过总线与处理器701连接。
其中，处理器701包括一个或者一个以上处理核心，处理器701通过运行软件程序以及模块以执行本公开实施例提供的通信方法中接入网设备所执行的方法。存储器704可用于存储软件程序以及模块。具体的，存储器704可存储操作系统7041、至少一个功能所需的应用程序模块7042。接收机702用于接收其他设备发送的通信数据，发射机703用于向其他设备发送通信数据。
在示例性实施例中，还提供了一种计算机可读存储介质，所述计算机可读存储介质中存储有至少一条指令、至少一段程序、代码集或指令集，所述至少一条指令、所述至少一段程序、所述代码集或指令集由所述处理器加载并执行以实现上述各个方法实施例提供的寻呼分组配置方法。
本公开一示例性实施例还提供了一种通信系统，所述通信系统包括终端和接入网设备。所述终端为如图14所示实施例提供的终端。所述接入网设备为如图15所示实施例提供的接入网设备。
本领域技术人员在考虑说明书及实践这里公开的发明后，将容易想到本公开的其它实施方案。本申请旨在涵盖本公开的任何变型、用途或者适应性变化，这些变型、用途或者适应性变化遵循本公开的一般性原理并包括本公开未公开的本技术领域中的公知常识或惯用技术手段。说明书和实施例仅被视为示例性的，本公开的真正范围和精神由下面的权利要求指出。
应当理解的是，本公开并不局限于上面已经描述并在附图中示出的精确结构，并且可以在不脱离其范围进行各种修改和改变。本公开的范围仅由所附的权利要求来限制。

Claims (25)

  1. 一种寻呼分组配置方法，其特征在于，所述方法包括：
    获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
    发送所述寻呼分组信息。
  2. 根据权利要求1所述的方法，其特征在于，所述参考信号为跟踪参考信号或信道状态信息参考信号。
  3. 根据权利要求1或2所述的方法，其特征在于，所述寻呼分组的数量与所述参考信号所占用的资源粒子的数量负相关；以及
    所述寻呼分组的数量与不同的所述参考信号所占用的资源粒子间的间隔大小负相关。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
    所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
  5. 根据权利要求1至4任一项所述的方法，其特征在于，所述发送所述寻呼分组信息，包括：
    通过配置信息向所述终端发送所述寻呼分组信息。
  6. 根据权利要求5所述的方法，其特征在于，所述参考信号的时域位置位于物理下行控制信道之前、位于物理下行共享信道之后或者位于物理下行控制信道和物理下行共享信道之间。
  7. 根据权利要求1至4任一项所述的方法，其特征在于，所述发送所述寻呼分组信息，包括：
    向所述终端发送携带有所述寻呼分组信息的下行控制信息，所述寻呼分组信息包括用于物理下行共享信道同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于物理下行共享信道同步的参考信号的频域偏移相关联。
  8. 根据权利要求7所述的方法，其特征在于，所述参考信号的时域位置位于物理下行控制信道和物理下行共享信道之间。
  9. 一种寻呼检测方法，其特征在于，所述方法包括：
    获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
    基于所述终端所在的寻呼分组进行寻呼检测。
  10. 根据权利要求9所述的方法，其特征在于，所述参考信号为跟踪参考信号或信道状态信息参考信号。
  11. 根据权利要求9或10所述的方法，其特征在于，所述寻呼分组的数量与所述参考信号所占用的资源粒子的数量负相关；以及
    所述寻呼分组的数量与不同的参考信号所占用的资源粒子间的间隔大小负相关。
  12. 根据权利要求9至11任一项所述的方法，其特征在于，所述寻呼分组信息包括所述终端所在的寻呼分组的参考信号的频域偏移；或者，
    所述寻呼分组信息包括寻呼分组的标识，所述寻呼分组的标识与所述寻呼分组的参考信号的频域偏移相关联。
  13. 根据权利要求9至12任一项所述的方法，其特征在于，所述获取寻呼分组信息，包括：
    基于配置信息、协议定义或本地存储获取所述寻呼分组信息。
  14. 根据权利要求13所述的方法，其特征在于，所述参考信号的时域位置位于物理下行控制信道之前、位于物理下行共享信道之后或者位于物理下行控制信道和物理下行共享信道之间。
  15. 根据权利要求9至12任一项所述的方法，其特征在于，所述获取寻呼分组信息，包括：
    接收接入网设备通过下行控制信息携带的所述寻呼分组信息，所述寻呼分组信息包括用于物理下行共享信道同步的参考信号的频域偏移，或者，所述寻呼分组信息中的寻呼分组的标识与用于物理下行共享信道同步的参考信号的频域偏移相关联。
  16. 根据权利要求15所述的方法，其特征在于，所述参考信号的时域位置位于物理下行控制信道和物理下行共享信道之间。
  17. 根据权利要求9至16任一项所述的方法，其特征在于，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
    根据所述终端所在的寻呼分组的参考信号的频域偏移接收所述参考信号；
    响应于所述终端接收到所述参考信号，接收并解调物理下行共享信道；
    基于所述物理下行共享信道解调出的信息，确定所述终端是否有寻呼消息或短消息。
  18. 根据权利要求9至16任一项所述的方法，其特征在于，所述基于所述终端所在的寻呼分组进行寻呼检测，包括：
    基于物理下行控制信道确认所述终端所在的寻呼分组是否有寻呼消息或短消息；
    响应于所述终端所在的寻呼分组有寻呼消息或短消息，接收并解调物理下行共享信道；
    基于所述物理下行共享信道解调出的信息，确定所述终端是否有寻呼消息或短消息。
  19. 根据权利要求17或18所述的方法，其特征在于，所述接收并解调物理下行共享信道，包括：
    确定所述终端所在的寻呼分组对应的至少一个码域资源；
    依次采用所述终端所在的寻呼分组对应的码域资源进行所述物理下行共享信道的解调，直到成功解调所述物理下行共享信道。
  20. 根据权利要求19所述的方法，其特征在于，不同的所述寻呼分组对应的至少一个码域资源不相同。
  21. 一种寻呼分组配置装置，其特征在于，所述装置包括：
    获取模块，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
    发送模块，被配置为发送所述寻呼分组信息。
  22. 一种寻呼检测装置，其特征在于，所述装置包括：
    获取模块，被配置为获取寻呼分组信息，所述寻呼分组信息用于指示终端所在的寻呼分组，不同的所述寻呼分组的参考信号的频域偏移不同；
    寻呼模块，被配置为基于所述终端所在的寻呼分组进行寻呼检测。
  23. 一种接入网设备，其特征在于，所述接入网设备包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现权利要求1至8任一项所述的寻呼分组配置方法。
  24. 一种终端，其特征在于，所述终端包括：
    处理器；
    用于存储处理器可执行指令的存储器；
    其中，所述处理器被配置为加载并执行所述可执行指令以实现权利要求9至20任一项所述的寻呼检测方法。
  25. 一种计算机可读存储介质，其特征在于，当所述计算机可读存储介质中的指令由处理器执行时，能够执行权利要求1至8任一所述的寻呼分组配置方法，或者能够执行权利要求9至20任一所述的寻呼检测方法。
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