CN114391287B - Paging packet configuration, paging detection method and device, access network equipment and terminal - Google Patents
Paging packet configuration, paging detection method and device, access network equipment and terminal Download PDFInfo
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- CN114391287B CN114391287B CN202080001858.3A CN202080001858A CN114391287B CN 114391287 B CN114391287 B CN 114391287B CN 202080001858 A CN202080001858 A CN 202080001858A CN 114391287 B CN114391287 B CN 114391287B
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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
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- 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
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Abstract
The disclosure relates to paging packet configuration and paging detection methods, devices, access network equipment and terminals, and belongs to the technical field of communication. The method comprises the following steps: acquiring paging grouping information, wherein the paging grouping information is used for indicating paging grouping in which a terminal is located, and frequency domain offsets of reference signals of different paging grouping are different; and sending the paging packet information.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a paging packet configuration method, a paging detection device, an access network device, and a terminal.
Background
In the standard discussion of the 5G New Radio (NR) R17 phase, a tracking reference signal/channel state Information reference signal (TRACKING REFERENCE SIGNAL/CHANNEL STATE Information REFERENCE SIGNAL, TRS/CSI-RS) for idle state terminals is proposed. The access network device may send TRS/CSI-RS for the idle state terminals for time-frequency synchronization and radio resource management measurements (Radio Resource Management, RRM).
Disclosure of Invention
The embodiment of the disclosure provides a paging packet configuration method, a paging detection device, access network equipment and a terminal. The technical scheme is as follows:
According to an aspect of the embodiments of the present disclosure, there is provided a paging packet configuration method, the method including:
Acquiring paging grouping information, wherein the paging grouping information is used for indicating paging grouping in which a terminal is located, and frequency domain offsets of reference signals of different paging grouping are different;
and sending the paging packet information.
Optionally, the reference signal is a TRS/CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different ones of the reference signals.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
Optionally, the sending the paging packet information includes:
Sending the paging grouping information to the terminal through configuration information; or alternatively
The sending the paging packet information includes:
And sending DCI carrying the paging packet information to the terminal, wherein the paging packet information comprises frequency domain offset of a reference signal used for PDSCH synchronization, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
Alternatively, when the paging packet information is transmitted through the DCI, a time domain position of the reference signal is located between a PDCCH and a PDSCH.
Alternatively, when the paging packet information is transmitted through the configuration information, the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
According to an aspect of the embodiments of the present disclosure, there is provided a paging detection method, including:
Acquiring paging grouping information, wherein the paging grouping information is used for indicating paging grouping in which a terminal is located, and frequency domain offsets of reference signals of different paging grouping are different;
And carrying out paging detection based on the paging packet where the terminal is located.
Optionally, the reference signal is a TRS/CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different reference signals.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
Optionally, the acquiring paging packet information includes:
Acquiring the paging packet information based on configuration information, protocol definition or local storage; or alternatively
The obtaining paging packet information includes:
And receiving the paging packet information carried by the access network equipment through DCI, wherein the paging packet information comprises the frequency domain offset of the reference signal used for PDSCH synchronization, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
Alternatively, when the paging packet information is acquired through the DCI, a time domain position of the reference signal is located between the PDCCH and the PDSCH.
Optionally, when the paging packet information is acquired through the configuration information, protocol definition, or local storage, the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
Optionally, the paging detection based on the paging packet where the terminal is located includes:
receiving a reference signal of a paging packet where the terminal is located according to the frequency domain offset of the reference signal;
receiving and demodulating a PDSCH in response to the terminal receiving the reference signal;
and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
Optionally, the paging detection based on the paging packet where the terminal is located includes:
Confirming whether paging grouping in which the terminal is positioned has paging information or short message based on PDCCH;
receiving and demodulating PDSCH in response to paging information or short message of paging packet where the terminal is located;
and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
Optionally, the receiving and demodulating PDSCH includes:
determining at least one code domain resource corresponding to a paging packet where the terminal is located;
and demodulating the PDSCH by sequentially adopting code domain resources corresponding to the paging packet where the terminal is positioned until the PDSCH is successfully demodulated.
Optionally, at least one code domain resource corresponding to different paging packets is different.
According to an aspect of the embodiments of the present disclosure, there is provided a paging packet configuration apparatus, the apparatus including:
The acquisition module is configured to acquire paging packet information, wherein the paging packet information is used for indicating a paging packet in which a terminal is located, and frequency domain offsets of reference signals of different paging packets are different;
And a transmitting module configured to transmit the paging packet information.
According to an aspect of the embodiments of the present disclosure, there is provided a paging detection apparatus, the apparatus including:
The acquisition module is configured to acquire paging packet information, wherein the paging packet information is used for indicating a paging packet in which a terminal is located, and frequency domain offsets of reference signals of different paging packets are different;
And the paging module is configured to perform paging detection based on the paging packet where the terminal is located.
According to an aspect of the embodiments of the present disclosure, there is provided an access network device, including:
A processor;
A memory for storing processor-executable instructions;
Wherein the processor is configured to load and execute the executable instructions to implement the paging packet configuration method according to any of the preceding claims.
According to an aspect of the embodiments of the present disclosure, there is provided a terminal including:
A processor;
A memory for storing processor-executable instructions;
Wherein the processor is configured to load and execute the executable instructions to implement the paging detection method according to any of the preceding claims.
According to an aspect of the embodiments of the present disclosure, there is provided a computer-readable storage medium, which when executed by a processor, is capable of performing the paging packet configuration method as set forth in any one of the preceding claims, or is capable of performing the paging detection method as set forth in any one of the preceding claims.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 illustrates a block diagram of a communication system provided by an exemplary embodiment of the present disclosure;
fig. 2 is a flow chart illustrating a paging packet configuration method according to an example embodiment;
fig. 3 to 5 are schematic structural views of RBs provided by an embodiment of the present disclosure;
Fig. 6 to 8 are schematic diagrams of reference signal transmission positions provided in an embodiment of the disclosure;
FIG. 9 is a flowchart illustrating a paging detection method, according to an example embodiment;
FIG. 10 is a flowchart illustrating a paging detection method, according to an example embodiment;
FIG. 11 is a flowchart illustrating a paging detection method, according to an example embodiment;
fig. 12 is a schematic diagram illustrating a structure of a paging packet configuration apparatus according to an exemplary embodiment;
fig. 13 is a schematic diagram showing a structure of a paging detection apparatus according to an exemplary embodiment;
FIG. 14 is a block diagram of a terminal shown in accordance with an exemplary embodiment;
fig. 15 is a block diagram of an access network device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
The terminology used in the embodiments of the disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the embodiments of the disclosure. As used in this disclosure of embodiments and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.
It should be understood that although the terms first, second, third, etc. may be used in embodiments of the present disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, the first information may also be referred to as second information, and similarly, the second information may also be referred to as first information, without departing from the scope of embodiments of the present disclosure. The words "if" and "if" as used herein may be interpreted as "at … …" or "at … …" or "in response to a determination", depending on the context.
It should be understood that although steps are illustrated in the embodiments of the present disclosure as numbered for ease of understanding, these numbers do not represent the order in which the steps are performed, nor do they represent that the steps in sequential numbering must be performed together. It should be understood that one or several steps among the plurality of steps using sequential numbering may be performed separately to solve the corresponding technical problem and achieve the predetermined technical solution. Even though the various steps are illustrated as being grouped together in the accompanying figures, it is not intended that the steps be necessarily performed together; the figures are merely exemplary to bring together these steps for ease of understanding.
Fig. 1 shows a block diagram of a communication system provided by an exemplary embodiment of the present disclosure, as shown in fig. 1, which may include: a network side 12 and a terminal 13.
Included in network side 12 are several access network devices 120. Access network device 120 may be a base station, which is a device deployed in an access network to provide wireless communication functionality for terminals. 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 stations may include various forms of macro base stations, micro base stations, relay stations, access points, transmission and reception points (Transmission Reception Point, TRP), and so forth. The names of base station capable devices may vary in systems employing different radio access technologies, and are referred to as gNodeB or gNB in 5G NR systems. As communication technology evolves, the name "base station" may describe and vary. Access network device 120 may also be a location management function entity (Location Management Function, LMF).
The terminal 13 may include various handheld devices, in-vehicle devices, wearable devices, computing devices, or other processing devices connected to a wireless modem, as well as various forms of user devices, mobile Stations (MSs), terminals, internet of things devices (Internet of Things, ioT), industrial internet of things devices (Industry Internet of Things, IIoT), and so forth. For convenience of description, the above-mentioned devices are collectively referred to as a terminal. Access network device 120 and terminal 13 communicate with each other via some air interface technology, such as the Uu interface.
In the standard discussion of the 5G NR R17 phase, a scheme of TRS/CSI-RS for idle state terminals is proposed. The TRS/CSI-RS is used for time-frequency synchronization and radio resource management measurement. Wherein the TRS includes a plurality of periodically transmitted Non Zero Power (NZP) CSI-RSs.
In addition, the TRS/CSI-RS may be set near the paging occasion (Paging Occasion, PO) for accurate synchronization, that is, if the terminal detects the TRS/CSI-RS at a set position before the PO, it indicates that there is a Short Message (Short Message) or a paging Message (PAGING MESSAGE) in the PO, and then the terminal continues to monitor the PO to obtain the Short Message or the paging Message. If the terminal does not detect the TRS/CSI-RS before the PO, indicating that there is no short message or paging message for the terminal in the PO, the terminal does not need to monitor the PO.
When paging detection is performed, paging grouping can be performed on the terminals, and the access network equipment indicates whether a group of terminals have short messages or paging messages through the CSI-RS. For example, if the terminal determines that the CSI-RS is detected at the position before the PO, it indicates that there is a short message or a paging message of the group of terminals in the PO, the terminal further detects a physical downlink shared channel (Physical Downlink SHARED CHANNEL, PDSCH) in the PO, and decodes the terminal identifier in the message, if it is the own terminal identifier, it indicates that there is an own short message or a paging message, and if it is the other terminal identifier in the group, it indicates that there is no own short message or paging message.
Here, the paging packet may be performed using a CSI-RS sequence, and the greater the number of paging packets, the more power saving is made for the terminal. But is limited by the number of CSI-RS sequences, currently, the number of packets that can be based on the grouping of CSI-RS sequences is small.
The communication system and the service scenario described in the embodiments of the present disclosure are for more clearly describing the technical solution of the embodiments of the present disclosure, and are not limited to the technical solution provided by the embodiments of the present disclosure, and those skilled in the art can know that, with the evolution of the communication system and the appearance of a new service scenario, the technical solution provided by the embodiments of the present disclosure is applicable to similar technical problems.
Fig. 2 is a flow chart illustrating a paging packet configuration method according to an example embodiment. Referring to fig. 2, the method includes the steps of:
in step 101, the access network device obtains paging packet information.
The paging packet information is used to indicate paging packets in which the terminal is located, and frequency domain offsets of reference signals of different paging packets are different, that is, in the embodiment of the present disclosure, the paging packets are implemented based on the frequency domain offsets of the reference signals, for example, different paging packets, and frequency offsets (offsets) of Resource Elements (REs) transmitting the reference signals are different. One subcarrier in the frequency domain and one symbol (symbol) in the time domain are called one RE.
The access network device can acquire paging packet information through configuration information, protocol definition or local storage, for example, the access network device can receive the configuration information issued by other devices at the network side, and the configuration information carries the paging packet information; or firstly configuring paging packet information in the local storage or protocol of the access network equipment, and obtaining the paging packet information from the protocol definition or the local storage when the access network equipment is used.
In step 102, the access network device sends the paging packet information.
In the embodiment of the disclosure, the access network device obtains the paging packet information first and then sends the paging packet information to the terminal, so that the terminal can perform paging detection based on the paging packet information. Because in the paging grouping information, different paging groupings are distinguished based on the frequency domain offset of the reference signal, compared with the CSI-RS sequence, more groupings can be divided, so that the power consumption of the terminal in the paging detection process can be further reduced, and the terminal power saving is facilitated.
Optionally, the reference signal is a TRS/CSI-RS, i.e. the reference signal may be a TRS or CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different ones of the reference signals.
In general, an access network device may transmit a reference signal on one symbol of 1 Resource Block (RB).
Fig. 3 to 5 show schematic structures of one RB, which includes 14 symbols in the time domain and 12 subcarriers in the frequency domain, each small square in the figure representing 1 RE. The access network device may transmit the reference signal on one of the symbols, e.g., on symbol 3.
In the frequency domain, the subcarriers occupied by different paging packets are different, that is, the frequency offset of REs of reference signals of different paging packets is different. As shown in fig. 3,4 paging packets are configured. The 4 paging packets are represented by different padding, each occupying 4 REs in the RB. As shown in fig. 4, each paging packet occupies 8 REs in the RB until 2 paging packets are configured. Based on fig. 3 and 4, it can be seen that the fewer the number of REs occupied by the reference signal, the greater the number of paging packets that can be configured. As shown in fig. 5, an interval of 1 RE is set between reference signals of different paging packets, up to 2 paging packets are configured. Based on fig. 3 and 5, it can be seen that the smaller the size of the interval between REs occupied by the reference signal, the greater the number of paging packets that can be configured.
In addition, as can be further seen from fig. 3 to fig. 5, each paging packet may correspond to a set of frequency domain offsets, and the frequency domain offsets may be identified by subcarriers, and taking fig. 3 as an example, the frequency domain offset corresponding to one paging packet is subcarriers 3, 7, and 11, respectively.
Illustratively, by default, there is only one paging packet, i.e., all subcarriers belong to one paging packet.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; for example, the paging packet information includes subcarrier sequence numbers: 3. 7, 11, the subcarriers 3, 7, 11 are the frequency domain offsets of the reference signals of the paging packet. Or the paging packet information includes the sequence number of the RE.
Or the paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet. For example, the paging packet information includes an identification 00, and the frequency domain offset associated with the identification 00 is subcarriers 3, 7, 11.
Wherein, the correspondence between the identification of the paging packet and the frequency domain offset of the reference signal of the paging packet can be configured to the access network device by the system information in advance, for example, by a system information block (System Information Blocks, SIB).
Optionally, the sending the paging packet information includes:
Sending the paging grouping information to the terminal through configuration information; or alternatively
The sending the paging packet information includes:
And transmitting downlink control information (Downlink Control Information, DCI) carrying the paging packet information to the terminal, wherein the paging packet information comprises frequency domain offset of a reference signal used for PDSCH synchronization, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
The configuration information may be system information, radio resource control (Radio Resource Control, RRC) information, or the like.
Wherein, the DCI is carried by a physical downlink control channel (Physical Downlink Control Channel, PDCCH).
Alternatively, when the paging packet information is transmitted through the DCI, a time domain position of the reference signal is located between a PDCCH and a PDSCH.
Fig. 6 is a schematic diagram of a reference signal transmission position provided by an embodiment of the present disclosure, referring to fig. 6, in a PO time period, an access network device performs PDCCH transmission with a terminal first, and then performs PDSCH transmission.
If the paging packet information is transmitted using DCI carried by PDCCH, the time domain position of the reference signal is located between PDCCH and PDSCH at this time, as shown in fig. 6. In this way, the reference signal may achieve fine synchronization of PDSCH.
In this case, the access network device may indicate whether there is a subsequent paging of the group of terminals in the DCI in addition to transmitting paging packet information by using the DCI, for example, indicate, in the DCI, the paging packet in which the terminal is located by the identifier 00 of the paging packet, and simultaneously indicate that the paging packet in which the terminal is located is 00 in the subsequent paging, so that the terminal may determine whether there is a paging based on whether a reference signal is detected at an RE position of the reference signal, determine whether there is a paging based on the indication in the DCI, and combine the two methods to determine whether there is a paging, so that paging detection accuracy of the terminal is higher.
Alternatively, when the paging packet information is transmitted through the configuration information, the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
When transmitting paging packet information using configuration information, 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 8 are schematic diagrams of transmission positions of two other reference signals provided in the embodiments of the present disclosure, referring to fig. 7 and 8, if paging packet information is transmitted using configuration information, the time domain position of the reference signal may also be located before PDCCH or after PDSCH at this time, as shown in fig. 7 and 8.
In the time domain, the PDCCH, the PDSCH, and the reference signal may occupy one symbol, respectively.
It should be noted that the foregoing steps 101 to 102 and the foregoing optional steps may be arbitrarily combined.
Fig. 9 is a flow chart illustrating a paging detection method according to an exemplary embodiment. Referring to fig. 9, the method includes the steps of:
In step 201, paging packet information is acquired.
The paging packet information is used to indicate paging packets in which the terminal is located, and frequency offsets of reference signals of different paging packets are different, that is, in the embodiment of the present disclosure, the paging packets are implemented based on the frequency offsets of the reference signals, for example, the frequency offsets of REs transmitting the reference signals are different for different paging packets.
In step 202, paging detection is performed based on the paging packet in which the terminal is located.
In the embodiment of the disclosure, the terminal can perform paging detection by acquiring the paging packet information first and then based on the paging packet information. Because in the paging grouping information, different paging groupings are distinguished based on the frequency domain offset of the reference signal, compared with the CSI-RS sequence, more groupings can be divided, so that the power consumption of the terminal in the paging detection process can be further reduced, and the terminal power saving is facilitated.
Optionally, the reference signal is a TRS/CSI-RS, i.e. the reference signal may be a TRS or CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different reference signals.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
Optionally, the acquiring paging packet information includes:
Acquiring the paging packet information based on configuration information, protocol definition or local storage; or alternatively
The obtaining paging packet information includes:
And receiving the paging packet information carried by the access network equipment through DCI, wherein the paging packet information comprises the frequency domain offset of the reference signal used for PDSCH synchronization, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
Alternatively, when the paging packet information is acquired through the DCI, a time domain position of the reference signal is located between the PDCCH and the PDSCH.
Optionally, when the paging packet information is acquired through the configuration information, protocol definition, or local storage, the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
Optionally, the paging detection based on the paging packet where the terminal is located includes:
receiving a reference signal of a paging packet where the terminal is located according to the frequency domain offset of the reference signal;
receiving and demodulating a PDSCH in response to the terminal receiving the reference signal;
and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
In this implementation, the terminal performs reference signal reception by shifting out in the frequency domain of the reference signal, thereby determining whether there is paging of the paging packet in the PO. I.e. if a reference signal is received, the paging of the paging packet is considered to be present, and if no reference signal is received, the paging of the paging packet is considered to be absent.
Optionally, the paging detection based on the paging packet where the terminal is located includes:
Confirming whether paging grouping in which the terminal is positioned has paging information or short message based on PDCCH;
receiving and demodulating PDSCH in response to paging information or short message of paging packet where the terminal is located;
and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
As described above, when the paging packet information is transmitted through the DCI carried by the PDCCH, the access network device may indicate, in addition to the transmission of the paging packet information by using the DCI, whether there is a subsequent page for the group of terminals in the DCI, for example, indicate, in the DCI, the paging packet in which the terminal is located by the identifier 00 of the paging packet, and simultaneously indicate that the paging packet in which there is a subsequent page is 00, that is, that the paging packet 00 has a paging message or a short message. At this time, the terminal may determine whether there is paging of the paging packet based on the indication in DCI carried by the PDCCH.
In the embodiment of the present disclosure, when the time domain position of the reference signal is located between the PDCCH and the PDSCH, the two modes may be combined to determine whether there is a paging of the paging packet, that is, when the terminal receives the reference signal and the paging packet where the terminal is located has a paging message or a short message, the paging of the paging packet is determined.
Optionally, the receiving and demodulating PDSCH includes:
determining at least one code domain resource corresponding to a paging packet where the terminal is located;
and demodulating the PDSCH by sequentially adopting code domain resources corresponding to the paging packet where the terminal is positioned until the PDSCH is successfully demodulated.
In the embodiment of the present disclosure, a corresponding code domain resource may be configured for each paging packet, and the corresponding relationship may be sent by the access network device to the terminal through configuration information.
Optionally, at least one code domain resource corresponding to different paging packets is different.
In the embodiment of the present disclosure, since different paging packets are closely spaced in the frequency domain, in order to ensure transmission accuracy, different code domain resources may be configured for different paging packets, that is, TRS/CSI-RS sequences corresponding to different paging packets are different.
It should be noted that, if the timing structure shown in fig. 7 is adopted, since the TRS/CSI-RS is located after the PDSCH, at this time, the terminal may buffer the PDSCH first, and then determine whether to demodulate the PDSCH after receiving the TRS/CSI-RS.
It should be noted that the foregoing steps 201 to 202 and the foregoing optional steps may be arbitrarily combined.
Fig. 10 is a flow chart illustrating a paging detection method according to an exemplary embodiment. Referring to fig. 10, the method includes the steps of:
in step 301, the access network device obtains paging packet information.
The paging packet information is used to indicate paging packets in which the terminal is located, and frequency offsets of reference signals of different paging packets are different, that is, in the embodiment of the present disclosure, the paging packets are implemented based on the frequency offsets of the reference signals, for example, different paging packets transmit different frequency offsets of R) of the reference signals.
The access network device can acquire paging packet information through configuration information, protocol definition or local storage, for example, the access network device can receive the configuration information issued by other devices at the network side, and the configuration information carries the paging packet information; or firstly configuring paging packet information in the local storage or protocol of the access network equipment, and obtaining the paging packet information from the protocol definition or the local storage when the access network equipment is used.
In step 302, the access network device sends the paging packet information. The terminal receives paging packet information.
In the embodiment of the disclosure, the access network device and the terminal may transmit paging packet information through configuration information or DCI.
In step 303, the terminal receives a reference signal of a paging packet in which the terminal is located according to a frequency domain offset of the reference signal.
For example, the terminal receives the reference signal on subcarriers occupied by reference signal transmission (with positions in the combining time domain) or on occupied REs.
In 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 a paging packet where the terminal is located; and demodulating the PDSCH by sequentially adopting code domain resources corresponding to the paging packet where the terminal is positioned until the PDSCH is successfully demodulated.
In the embodiment of the present disclosure, a corresponding code domain resource may be configured for each paging packet, and the corresponding relationship may be sent by the access network device to the terminal through configuration information.
Optionally, at least one code domain resource corresponding to different paging packets is different.
In the embodiment of the present disclosure, since different paging packets are closely spaced in the frequency domain, in order to ensure transmission accuracy, different code domain resources may be configured for different paging packets, that is, TRS/CSI-RS sequences corresponding to different paging packets are different.
For example, when the frequency difference of the two paging packets in the frequency domain does not exceed the threshold, the two paging packets may configure completely different code domain resources, i.e., completely different TRS/CSI-RS sequences; when the frequency difference of the two paging packets in the frequency domain exceeds the threshold, the code domain resources configured by the two paging packets can be partially identical, i.e. a partial TRS/CSI-RS sequence can be multiplexed. As shown in fig. 3, for 4 paging packets, if the paging packets are divided into 4 groups from top to bottom, the frequency difference between the first group and the second group in the frequency domain is smaller, the TRS/CSI-RS sequences of the first group and the second group may be completely different, and the frequency difference between the first group and the fourth group in the frequency domain may be slightly larger, where the TRS/CSI-RS sequences of the first group and the fourth group may be partially the same.
Illustratively, the threshold here may be a frequency domain width of REs corresponding to 1 TRS/CSI-RS sequence. Generally, as shown in fig. 3 to 5, the frequency difference in the frequency domain of each packet is small, and at least one TRS/CSI-RS sequence corresponding to different paging packets is different.
It should be noted that, if the timing structure shown in fig. 7 is adopted, since the TRS/CSI-RS is located after the PDSCH, at this time, the terminal may buffer the PDSCH first, and then determine whether to demodulate the PDSCH after receiving the TRS/CSI-RS.
In step 305, the terminal determines whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
For example, if the information demodulated from the PDSCH includes the identity of the terminal, a paging message or a short message for the terminal is indicated. If the information demodulated from the PDSCH does not contain the identification of the terminal, the paging message or the short message of the terminal is not indicated.
Fig. 11 is a flow chart illustrating a paging detection method according to an exemplary embodiment. Referring to fig. 11, the method includes the steps of:
In step 401, the access network device obtains paging packet information.
The detailed procedure of this step is the same as step 301.
In step 402, the access network device transmits the paging packet information. The terminal receives paging packet information.
The detailed procedure of this step is the same as step 302.
In step 403, the terminal confirms whether the paging packet in which the terminal is located has a paging message or a short message based on the PDCCH.
As described above, when the paging packet information is transmitted through the DCI carried by the PDCCH, the access network device may indicate, in addition to the transmission of the paging packet information by using the DCI, whether there is a subsequent page for the group of terminals in the DCI, for example, indicate, in the DCI, the paging packet in which the terminal is located by the identifier 00 of the paging packet, and simultaneously indicate that the paging packet in which there is a subsequent page is 00, that is, that the paging packet 00 has a paging message or a short message. At this time, the terminal may determine whether there is paging of the paging packet based on the indication in DCI carried by the PDCCH.
In step 404, the terminal receives and demodulates the PDSCH in response to paging messages or short messages in the paging packet in which the terminal is located.
Wherein the step of decoding PDSCH may refer to step 304.
In step 405, the terminal determines whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
The detailed procedure of this step is the same as step 305.
Fig. 12 is a schematic diagram illustrating a structure of a paging packet configuration apparatus according to an exemplary embodiment. The device has the function of realizing the access network equipment in the method embodiment, and the function can be realized by hardware or can be realized by executing corresponding software by hardware. As shown in fig. 12, the apparatus includes: an acquisition module 401 and a transmission module 402.
The acquiring module 401 is configured to acquire paging packet information, where the paging packet information is used for indicating a paging packet where a terminal is located, and frequency domain offsets of reference signals of different paging packets are different;
a transmitting module 402 configured to transmit the paging packet information.
Optionally, the reference signal is a TRS/CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different ones of the reference signals.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
Optionally, a sending module 402 is configured to send the paging packet information to the terminal through configuration information; or alternatively
A transmitting module 402, configured to transmit DCI carrying the paging packet information to the terminal, where the paging packet information includes a frequency-domain offset of a reference signal for PDSCH synchronization, or an identification of a paging packet in the paging packet information is associated with the frequency-domain offset of the reference signal for PDSCH synchronization.
Alternatively, when the paging packet information is transmitted through the DCI, a time domain position of the reference signal is located between a PDCCH and a PDSCH.
Alternatively, when the paging packet information is transmitted through the configuration information, 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 diagram showing a structure of a paging detection apparatus according to an exemplary embodiment. The device has the function of realizing the terminal in the method embodiment, and the function can be realized by hardware or can be realized by executing corresponding software by hardware. As shown in fig. 13, the apparatus includes: an acquisition module 501 and a paging module 502.
The acquiring module 501 is configured to acquire paging packet information, where the paging packet information is used for indicating a paging packet where a terminal is located, and frequency domain offsets of reference signals of different paging packets are different;
paging module 502 is configured to perform paging detection based on the paging packet in which the terminal is located.
Optionally, the reference signal is a TRS/CSI-RS.
Optionally, the number of paging packets is inversely related to the number of REs occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between REs occupied by different reference signals.
Optionally, the paging packet information includes a frequency domain offset of a reference signal of a paging packet where the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
Optionally, the acquiring module 501 is configured to acquire the paging packet information based on configuration information, protocol definition or local storage; or alternatively
An obtaining module 501 is configured to receive the paging packet information carried by the access network device through DCI, where the paging packet information includes a frequency domain offset of a reference signal used for PDSCH synchronization, or an identifier of a paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for PDSCH synchronization.
Alternatively, when the paging packet information is acquired through the DCI, a time domain position of the reference signal is located between the PDCCH and the PDSCH.
Optionally, when the paging packet information is acquired through the configuration information, protocol definition, or local storage, the time domain position of the reference signal is located before the PDCCH, after the PDSCH, or between the PDCCH and the PDSCH.
Optionally, the paging module 502 is configured to receive the reference signal according to a frequency domain offset of the reference signal of the paging packet where the terminal is located; receiving and demodulating a PDSCH in response to the terminal receiving the reference signal; and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
Optionally, the paging module 502 is configured to confirm whether the paging packet where the terminal is located has a paging message or a short message based on the PDCCH; receiving and demodulating PDSCH in response to paging information or short message of paging packet where the terminal is located; and determining whether the terminal has a paging message or a short message based on the information demodulated by the PDSCH.
Optionally, the paging module 502 is configured to determine at least one code domain resource corresponding to a paging packet where the terminal is located; and demodulating the PDSCH by sequentially adopting code domain resources corresponding to the paging packet where the terminal is positioned until the PDSCH is successfully demodulated.
Optionally, at least one code domain resource corresponding to different paging packets is different.
Fig. 14 is a block diagram of a terminal 600, which is illustrated according to an exemplary embodiment, the terminal 600 may include: processor 601, receiver 602, transmitter 603, memory 604 and bus 605.
Processor 601 includes one or more processing cores, and 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 one communication component, which may be a communication chip.
The memory 604 is connected to the processor 601 by a bus 605.
The memory 604 may be used for storing at least one instruction that the processor 601 may use to execute to implement the various steps of the method embodiments described above.
Further, the memory 604 may be implemented by any type or combination of volatile or nonvolatile 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 Random Access Memory (SRAM), read-only memory (ROM), magnetic memory, flash memory, programmable read-only memory (PROM).
In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein at least one instruction, at least one program, a code set, or a set of instructions, which are loaded and executed by the processor to implement the paging detection method provided by the above-described respective method embodiments.
Fig. 15 is a block diagram of an access network device 700, according to an example 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 each connected to the processor 701 by a bus.
Wherein the processor 701 includes one or more processing cores, the processor 701 executes software programs and modules to perform the method performed by the access network device in the communication method provided by the embodiments of the present disclosure. Memory 704 may be used to store software programs and modules. In particular, the memory 704 may store an operating system 7041, at least one application program module 7042, which is required for functionality. The receiver 702 is configured to receive communication data transmitted by other devices, and the transmitter 703 is configured to transmit communication data to other devices.
In an exemplary embodiment, there is also provided a computer readable storage medium having stored therein at least one instruction, at least one program, a code set, or a set of instructions, which are loaded and executed by the processor to implement the paging packet configuration method provided by the above-described respective method embodiments.
An exemplary embodiment of the present disclosure also provides a communication system including a terminal and an access network device. The terminal is provided in the embodiment shown in fig. 14. The access network device is an access network device provided in the embodiment shown in fig. 15.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any adaptations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (25)
1. A paging packet configuration method, the method comprising:
Acquiring paging grouping information, wherein the paging grouping information is used for indicating paging groupings where a terminal is located, different paging groupings are different in frequency domain offset of resource elements for transmitting reference signals, the resource elements are a subcarrier on a frequency domain and a symbol on a time domain, each paging grouping corresponds to a group of frequency domain offsets, the frequency domain offsets are marked by subcarriers, any adjacent frequency domain offset intervals in the group of frequency domain offsets are the same, when the frequency difference of the two paging groupings on the frequency domain does not exceed a threshold value, the two paging groupings are configured with completely different code domain resources, and when the frequency difference of the two paging groupings on the frequency domain exceeds the threshold value, the code domain resources configured by the two paging groupings are partially the same;
and sending the paging packet information.
2. The method of claim 1, wherein the reference signal is a tracking reference signal or a channel state information reference signal.
3. The method according to claim 1 or 2, characterized in that the number of paging packets is inversely related to the number of resource elements occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between the resource elements occupied by different reference signals.
4. The method according to claim 1 or 2, characterized in that the paging packet information comprises a frequency domain offset of a reference signal of a paging packet in which the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
5. The method according to claim 1 or 2, wherein said transmitting the paging packet information comprises:
and sending the paging grouping information to the terminal through configuration information.
6. The method of claim 5, wherein the time domain location of the reference signal is located before the physical downlink control channel, after the physical downlink shared channel, or between the physical downlink control channel and the physical downlink shared channel.
7. The method according to claim 1 or 2, wherein said transmitting the paging packet information comprises:
and sending downlink control information carrying the paging packet information to the terminal, wherein the paging packet information comprises frequency domain offset of a reference signal used for physical downlink shared channel synchronization, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for physical downlink shared channel synchronization.
8. The method of claim 7, wherein the time domain location of the reference signal is located between a physical downlink control channel and a physical downlink shared channel.
9. A method of paging detection, the method comprising:
Acquiring paging grouping information, wherein the paging grouping information is used for indicating paging groupings where a terminal is located, different paging groupings are different in frequency domain offset of resource elements for transmitting reference signals, the resource elements are a subcarrier on a frequency domain and a symbol on a time domain, each paging grouping corresponds to a group of frequency domain offsets, the frequency domain offsets are marked by subcarriers, any adjacent frequency domain offset intervals in the group of frequency domain offsets are the same, when the frequency difference of the two paging groupings on the frequency domain does not exceed a threshold value, the two paging groupings are configured with completely different code domain resources, and when the frequency difference of the two paging groupings on the frequency domain exceeds the threshold value, the code domain resources configured by the two paging groupings are partially the same;
And carrying out paging detection based on the paging packet where the terminal is located.
10. The method of claim 9, wherein the reference signal is a tracking reference signal or a channel state information reference signal.
11. The method according to claim 9 or 10, characterized in that the number of paging packets is inversely related to the number of resource elements occupied by the reference signal; and
The number of paging packets is inversely related to the size of the interval between the resource elements occupied by different reference signals.
12. The method according to claim 9 or 10, characterized in that the paging packet information comprises a frequency domain offset of a reference signal of a paging packet in which the terminal is located; or alternatively
The paging packet information includes an identification of a paging packet associated with a frequency domain offset of a reference signal of the paging packet.
13. The method according to claim 9 or 10, wherein the acquiring paging packet information comprises:
the paging packet information is obtained based on configuration information, protocol definition, or local storage.
14. The method of claim 13, wherein the time domain location of the reference signal is located before the physical downlink control channel, after the physical downlink shared channel, or between the physical downlink control channel and the physical downlink shared channel.
15. The method according to claim 9 or 10, wherein the acquiring paging packet information comprises:
And receiving the paging packet information carried by the access network equipment through the downlink control information, wherein the paging packet information comprises frequency domain offset of a reference signal used for synchronizing a physical downlink shared channel, or the identification of the paging packet in the paging packet information is associated with the frequency domain offset of the reference signal used for synchronizing the physical downlink shared channel.
16. The method of claim 15, wherein the time domain location of the reference signal is located between a physical downlink control channel and a physical downlink shared channel.
17. The method of claim 9, wherein the paging detection based on the paging packet in which the terminal is located comprises:
receiving a reference signal of a paging packet where the terminal is located according to the frequency domain offset of the reference signal;
Receiving and demodulating a physical downlink shared channel in response to the terminal receiving the reference signal;
And determining whether the terminal has a paging message or a short message based on the information demodulated by the physical downlink shared channel.
18. The method of claim 9, wherein the paging detection based on the paging packet in which the terminal is located comprises:
confirming whether paging grouping in which the terminal is positioned has paging information or short message or not based on a physical downlink control channel;
Receiving and demodulating a physical downlink shared channel in response to a paging message or a short message of a paging packet in which the terminal is located;
And determining whether the terminal has a paging message or a short message based on the information demodulated by the physical downlink shared channel.
19. The method according to claim 17 or 18, wherein said receiving and demodulating a physical downlink shared channel comprises:
determining at least one code domain resource corresponding to a paging packet where the terminal is located;
And sequentially adopting code domain resources corresponding to the paging packet where the terminal is positioned to demodulate the physical downlink shared channel until the physical downlink shared channel is successfully demodulated.
20. The method of claim 19, wherein at least one code domain resource corresponding to different ones of the paging packets is different.
21. A paging packet configuration apparatus, the apparatus comprising:
The acquisition module is configured to acquire paging packet information, wherein the paging packet information is used for indicating paging packets in which a terminal is located, different paging packets are used for indicating that frequency domain offsets of resource elements for transmitting reference signals are different, the resource elements are a subcarrier on a frequency domain and a symbol on a time domain, each paging packet corresponds to a group of frequency domain offsets, the frequency domain offsets are identified by subcarriers, any adjacent frequency domain offset intervals in the group of frequency domain offsets are the same, when the frequency difference of the two paging packets on the frequency domain does not exceed a threshold value, the two paging packets are configured with completely different code domain resources, and when the frequency difference of the two paging packets on the frequency domain exceeds the threshold value, the code domain resources configured by the two paging packets are partially the same;
And a transmitting module configured to transmit the paging packet information.
22. A paging detection apparatus, the apparatus comprising:
The acquisition module is configured to acquire paging packet information, wherein the paging packet information is used for indicating paging packets in which a terminal is located, different paging packets are used for indicating that frequency domain offsets of resource elements for transmitting reference signals are different, the resource elements are a subcarrier on a frequency domain and a symbol on a time domain, each paging packet corresponds to a group of frequency domain offsets, the frequency domain offsets are identified by subcarriers, any adjacent frequency domain offset intervals in the group of frequency domain offsets are the same, when the frequency difference of the two paging packets on the frequency domain does not exceed a threshold value, the two paging packets are configured with completely different code domain resources, and when the frequency difference of the two paging packets on the frequency domain exceeds the threshold value, the code domain resources configured by the two paging packets are partially the same;
And the paging module is configured to perform paging detection based on the paging packet where the terminal is located.
23. An access network device, the access network device comprising:
A processor;
A memory for storing processor-executable instructions;
Wherein the processor is configured to load and execute the executable instructions to implement the paging packet configuration method of any one of claims 1 to 8.
24. A terminal, the terminal comprising:
A processor;
A memory for storing processor-executable instructions;
Wherein the processor is configured to load and execute the executable instructions to implement the paging detection method of any one of claims 9 to 20.
25. A computer readable storage medium, characterized in that instructions in the computer readable storage medium, when executed by a processor, are capable of performing the paging packet configuration method of any one of claims 1 to 8 or the paging detection method of any one of claims 9 to 20.
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| PCT/CN2020/106917 WO2022027258A1 (en) | 2020-08-04 | 2020-08-04 | Paging packet configuration method and apparatus, paging detection method and apparatus, access network device, and terminal |
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| CN108271215B (en) * | 2017-01-03 | 2023-03-14 | 中兴通讯股份有限公司 | Transmission method, device, base station and terminal of paging information |
| US10959206B2 (en) * | 2017-01-09 | 2021-03-23 | Qualcomm Incorporated | Conveying paging group information through control channel transmissions |
| CN110999459B (en) * | 2017-08-11 | 2022-05-20 | 中兴通讯股份有限公司 | Communicating paging information in wireless communications |
| TW201933817A (en) * | 2017-11-15 | 2019-08-16 | 美商Ｉｄａｃ控股公司 | Apparatus and systems for paging and L1 mobility in NR |
| CN110351761A (en) * | 2018-04-03 | 2019-10-18 | 华为技术有限公司 | It monitors paging message and sends the method, apparatus and system of instruction information |
| US12058617B2 (en) * | 2018-05-11 | 2024-08-06 | Qualcomm Incorporated | Methods and apparatus for a group wake up signal |
| CN110730504B (en) * | 2018-07-16 | 2021-03-12 | 维沃移动通信有限公司 | Paging indication method, device and system |
| CN111357332B (en) * | 2020-02-13 | 2023-10-03 | 北京小米移动软件有限公司 | Method, device, terminal and access network equipment for skipping paging detection |
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