CN110831151B - Method, device and computer readable storage medium for determining paging position - Google Patents
Method, device and computer readable storage medium for determining paging position Download PDFInfo
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- CN110831151B CN110831151B CN201810900620.9A CN201810900620A CN110831151B CN 110831151 B CN110831151 B CN 110831151B CN 201810900620 A CN201810900620 A CN 201810900620A CN 110831151 B CN110831151 B CN 110831151B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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Abstract
The embodiment of the invention provides a method, a device and a computer readable storage medium for determining a paging position, wherein the method comprises the following steps: determining a multiplexing mode of a synchronization signal/physical broadcast channel block (SSB) and a remaining minimum system message control resource set (RMSI CORESET); and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring a Physical Downlink Control Channel (PDCCH) scrambled by a system message radio network temporary identifier (SI-RNTI) by the terminal.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for determining a paging location, and a computer-readable storage medium.
Background
In an LTE system, a Paging (Paging) message may send a call request to a UE in an RRC _ IDLE state. Paging supports Discontinuous Reception (DRX), so that a UE in an RRC _ IDLE state only "wakes up" at a specific subframe (referred to as PO) of a specific frame (referred to as PF) within its Paging cycle to monitor a PDCCH scrambled with a P-RNTI, and can remain in a "sleep" state at other times, thereby reducing power consumption and increasing battery life of the UE.
System Information (SI) in the 5G NR is divided into a minimum System message and other System messages. The basic system information required for initial access of the terminal is collectively referred to as minimum system information in the NR. The minimum system message contains information related to initial access and scheduling information of other system messages, and mainly consists of a main system message block (MIB) and a system information block type 1(SIB 1). Wherein, the MIB message is carried by a broadcast channel PBCH on a physical layer; and SIB1, also referred to as Remaining Minimum System Information (RMSI), is carried by the downlink data channel (PDSCH) in the physical layer. RMSI PDSCH are scheduled and configured by a PDCCH scrambled by a system message radio network temporary identity, SI-RNTI.
In order to receive the PDCCH scrambled by the SI-RNTI (Type-0 PDCCH), the terminal needs to first determine a time-frequency position of an RMSI control resource set (CORESET), and needs to determine a corresponding control channel search space configuration. Both of these parts are indicated by 8 bits in the MIB in the PDCCH-ConfigSIB1 field, where the upper 4 bits (MSB) are used to indicate CORESET information for Type-0 PDCCH and the lower 4 bits (LSB) are used to indicate the search space for Type-0 PDCCH.
Regarding the time domain position of the Type-0 PDCCH search space, an association relationship is established between the SSB and the Type-0 PDCCH search space in the NR, so that the terminal can acquire the subsequent associated Type-0 PDCCH search space time domain position when receiving any SSB. How the terminal determines the paging location in the 5G NR is an urgent problem to be solved.
Disclosure of Invention
In view of the above, embodiments of the present invention are intended to provide a method, an apparatus, and a computer-readable storage medium for determining a paging location.
In order to achieve the above purpose, the technical solution of the embodiment of the present invention is realized as follows:
the embodiment of the invention provides a method for determining a paging position, which comprises the following steps:
determining a multiplexing mode of a synchronous signal/physical broadcast channel block SSB and a residual minimum system message control resource set RMSI CORESET;
and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI by the terminal.
Wherein, the multiplexing mode of the SSB and the RMSI CORESET comprises any one of the following conditions:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
Wherein, the determining the paging location of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET comprises:
and determining a paging frame PF and a paging opportunity PO in the terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET.
Wherein, when the SSB is time division multiplexed with the RMSI CORESET, the determination method of the paging frame PF is determined by the following formula:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
When the SSB and the RMSI CORESET are time-domain and frequency-domain hybrid multiplexed or frequency-domain multiplexed, the determination method of the paging frame PF is determined by the following formula:
SFN mod T＝(T divN)*(UE_ID mod N)+offset；
wherein the SFN represents a Paging Frame (PF); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
Wherein, the offset value is determined by the value of nB, including any one of the following conditions:
for nB ═ T or 2T, the offset value is 0;
for nB ═ T/2, the offset value is 0 or 1;
for nB ═ T/4, the offset value is 0, or 1, or 2, or 3;
for nB ═ T/8, the offset value is 0, or 1, or 2, or 3, or 4, or 5, or 6, or 7;
for nB ═ T/16, the offset value is 0, or 1, or 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10, or 11, or 12, or 13, or 14, or 15.
Wherein the determination method of the paging opportunity PO is determined by the following formula:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns < ═ 1, i _ s is 0; otherwise, i _ s is 1.
Wherein, when the SSB and the RMSI CORESET are time-division multiplexed, the n is0Expressed by the following formula:
wherein n0 corresponds to a time slot position when i is 0, and i is a serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
Wherein, when the SSB and the RMSI CORESET are in time-domain and frequency-domain hybrid multiplexing or the SSB and the RMSI CORESET are in frequency division multiplexing, the n is0＝0。
The embodiment of the invention also provides a device for determining the paging position, which comprises:
a first determining module, configured to determine a multiplexing manner of a synchronization signal/physical broadcast channel block SSB and a remaining minimum system message control resource set RMSI core;
and the second determining module is used for determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, and is used for monitoring a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI by the terminal.
The embodiment of the invention also provides a device for determining the paging position, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to perform the steps of the above method when running the computer program.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, which, when executed by a processor, implements the steps of the above-mentioned method.
The method, the device and the computer readable storage medium for determining the paging location provided by the embodiment of the invention determine the multiplexing mode of a synchronization signal/physical broadcast channel block (SSB) and a residual minimum system message control resource set (RMSI CORESET); and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring a Physical Downlink Control Channel (PDCCH) scrambled by a system message radio network temporary identifier (SI-RNTI) by the terminal. The embodiment of the invention determines the paging position of the terminal based on the multiplexing mode of SSB and RMSI CORESET, provides a specific implementation method for determining the paging position of the terminal in the 5G NR on the basis of an LTE system, makes up the vacancy in the technology and has simple and convenient implementation process.
Drawings
Fig. 1 is a flowchart illustrating a method for determining a paging location according to an embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating a multiplexing method of SSB and RMSI CORESET according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a device for determining a paging location according to an embodiment of the present invention.
Detailed Description
The invention is described below with reference to the figures and examples.
An embodiment of the present invention provides a method for determining a paging location, as shown in fig. 1, the method includes:
step 101: determining a multiplexing mode of a synchronous signal/physical broadcast channel block SSB and a residual minimum system message control resource set RMSI CORESET;
step 102: and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI by the terminal.
It can be known that the position of paging DCI in 5G NR is the same as the RMSI search space position, and the present application proposes to solve the problem how to determine the paging position of the terminal when the paging search space adopts the default configuration (several multiplexing modes of SSB and RMSI core set).
The embodiment of the invention determines the paging position of the terminal based on the multiplexing mode of SSB and RMSI CORESET, provides a specific implementation method for determining the paging position of the terminal in the 5G NR on the basis of an LTE system, makes up the vacancy in the technology and has simple and convenient implementation process.
In the embodiment of the present invention, the multiplexing manner of the SSB and the RMSI CORESET includes any one of the following situations, as shown in fig. 2:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
In the embodiment of the present invention, the determining the paging location of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET includes:
and determining a paging frame PF and a paging opportunity PO in the terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET.
In an embodiment of the present invention, when the SSB and the RMSI CORESET are time division multiplexed, the method for determining the paging frame PF is determined by the following formula:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
In another embodiment of the present invention, when the SSB and the RMSI CORESET are time-domain and frequency-domain multiplexing or the SSB and the RMSI CORESET are frequency-division multiplexing, the determination method of the paging frame PF is determined by the following formula:
SFN mod T＝(T divN)*(UE_ID mod N)+offset；
wherein the SFN represents a Paging Frame (PF); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
Wherein, the offset value is determined by the value of nB, including any one of the following conditions:
for nB ═ T or 2T, the offset value is 0;
for nB ═ T/2, the offset value is 0 or 1;
for nB ═ T/4, the offset value is 0/1/2/3;
for nB ═ T/8, the offset value is 0/1/2/3/4/5/6/7;
for nB T/16, the offset value is 0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15.
In the embodiment of the present invention, the method for determining the paging opportunity PO is determined by the following formula:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; ns ═ max (1, nB/T); the N indicates how many PFs are in each paging cycle, where N is min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns < ═ 1, i _ s is 0; otherwise, i _ s is 1.
In one embodiment of the invention, when the SSB is time-division multiplexed with the RMSI CORESET, the n is0Expressed by the following formula:
wherein, said n0Corresponding to the time slot position when i is 0, wherein i is the serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
In another embodiment of the invention, the SSB and RMSI CORESET are mixed and multiplexed in time domain and frequency domain, orWhen SSB and RMSI CORESET are frequency division multiplexed, n is0＝0。
In order to implement the foregoing method, an embodiment of the present invention further provides an apparatus for determining a paging location, as shown in fig. 3, where the apparatus includes:
a first determining module 301, configured to determine a multiplexing manner of a synchronization signal/physical broadcast channel block SSB and a remaining minimum system message control resource set RMSI CORESET;
a second determining module 302, configured to determine a paging location of the terminal based on the multiplexing manner of the SSB and the RMSI CORESET, where the paging location is used for the terminal to monitor a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI.
Wherein, the multiplexing mode of the SSB and the RMSI CORESET includes any one of the following situations, as shown in fig. 2:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
In this embodiment of the present invention, the determining, by the second determining module 302, a paging location of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET includes:
and determining a paging frame PF and a paging opportunity PO in the terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET.
In an embodiment of the present invention, when the first determining module 301 determines that the SSB is time division multiplexed with the RMSI core, the method for determining the paging frame PF by the second determining module 302 is determined by the following formula:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
In another embodiment of the present invention, when the first determining module 301 determines that the SSB and the RMSI CORESET are time-domain and frequency-domain multiplexed or that the SSB and the RMSI CORESET are frequency-domain multiplexed, the method for determining the paging frame PF by the second determining module 302 is determined by the following formula:
SFN mod T＝(T divN)*(UE_ID mod N)+offset；
wherein the SFN represents a paging frame PF; the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
Wherein, the offset value is determined by the value of nB, including any one of the following conditions:
for nB ═ T or 2T, the offset value is 0;
for nB ═ T/2, the offset value is 0 or 1;
for nB ═ T/4, the offset value is 0/1/2/3;
for nB ═ T/8, the offset value is 0/1/2/3/4/5/6/7;
for nB T/16, the offset value is 0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15.
In this embodiment of the present invention, the determination method of the paging opportunity PO by the second determining module 302 is determined by the following formula:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns < ═ 1, i _ s is 0; otherwise, i _ s is 1.
In an embodiment of the present invention, when the first determining module 301 determines that the SSB and the RMSI CORESET are time-division multiplexed, n is0Expressed by the following formula:
wherein, said n0Corresponding to when i is 0The i is the serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
In another embodiment of the present invention, the first determining module 301 determines that n0 is 0 when the SSB is time-domain and frequency-domain hybrid multiplexed with the RMSI CORESET or when the SSB is frequency-domain multiplexed with the RMSI CORESET.
The embodiment of the invention also provides a device for determining the paging position, which comprises: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is configured to execute, when running the computer program:
determining a multiplexing mode of SSB and RMSI CORESET;
and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring the PDCCH scrambled by the SI-RNTI by the terminal.
Wherein, the multiplexing mode of the SSB and the RMSI CORESET comprises any one of the following conditions:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
When the paging location of the terminal is determined based on the multiplexing mode of the SSB and the RMSI CORESET, the processor is further configured to execute, when running the computer program:
and determining a paging frame PF and a paging opportunity PO in the terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET.
When the SSB is time-multiplexed with the RMSI CORESET, the processor is further configured to execute the following equation when running the computer program:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
When the SSB and the RMSI CORESET are time-domain and frequency-domain hybrid multiplexed, or the SSB and the RMSI CORESET are frequency-division multiplexed, the processor is further configured to execute the following formula when running the computer program:
SFN mod T＝(T divN)*(UE_ID mod N)+offset；
wherein the SFN represents a Paging Frame (PF); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
The processor, when determining the paging opportunity PO, is further configured to, when running the computer program, perform the following equation:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns < ═ 1, i _ s is 0; otherwise, i _ s is 1.
When the SSB and the RMSI CORESET are time-division multiplexed, the n is0Expressed by the following formula:
wherein, said n0Corresponding to the time slot position when i is 0, wherein i is the serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
And when the SSB and the RMSI CORESET are subjected to time domain and frequency domain hybrid multiplexing or frequency division multiplexing, the n is0＝0。
It should be noted that: the apparatus provided in the foregoing embodiment is only illustrated by the division of the foregoing program modules when determining the paging location, and in practical applications, the foregoing processing allocation may be completed by different program modules according to needs, that is, the internal structure of the device is divided into different program modules, so as to complete all or part of the processing described above. In addition, the apparatus provided in the above embodiments and the corresponding method embodiments belong to the same concept, and specific implementation processes thereof are described in the method embodiments and are not described herein again.
In an exemplary embodiment, the embodiment of the present invention also provides a computer-readable storage medium, which may be a Memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface Memory, optical disc, or CD-ROM; or may be a variety of devices including one or any combination of the above memories, such as a mobile phone, computer, tablet device, personal digital assistant, etc.
Embodiments of the present invention also provide a computer-readable storage medium, having a computer program stored thereon,
the computer program, when executed by a processor, performs:
determining a multiplexing mode of SSB and RMSI CORESET;
and determining the paging position of the terminal based on the multiplexing mode of the SSB and the RMSI CORESET, wherein the paging position is used for monitoring the PDCCH scrambled by the SI-RNTI by the terminal.
Wherein, the multiplexing mode of the SSB and the RMSI CORESET comprises any one of the following conditions:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
When the paging location of the terminal is determined based on the multiplexing mode of the SSB and the RMSI CORESET, the computer program, when executed by the processor, further performs:
and determining a paging frame PF and a paging opportunity PO in the terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET.
When the SSB is time-multiplexed with the RMSI CORESET, the computer program when executed by the processor further performs the following:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
When the SSB and the RMSI CORESET are time-domain and frequency-domain hybrid multiplexed, or the SSB and the RMSI CORESET are frequency-division multiplexed, the computer program when executed by the processor further executes the following formula:
SFN mod T＝(T divN)*(UE_ID mod N)+offset；
wherein the SFN represents a Paging Frame (PF); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
When determining the paging opportunity PO, the computer program when executed by the processor further performs the following equation:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, T/2, T/4, T/8 or T/16; when Ns < ═ 1, i _ s ═ 0; otherwise, i _ s is 1.
When the SSB and RMSI CORESET are time-division multiplexed, the n is0Expressed by the following formula:
wherein, said n0Corresponding to the time slot position when i is 0, wherein i is the serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
And when the SSB and the RMSI CORESET are subjected to time domain and frequency domain hybrid multiplexing or frequency division multiplexing, the n is0＝0。
The invention is described below in conjunction with the scenario embodiments.
In the 5G NR, the default position of paging Downlink Control Information (DCI) is the same as the position of RMSI search space, and the paging position of the terminal can be determined by determining PF and PO.
For LTE systems, the Paging Occasion (PO) is a subframe on which there may be a PDCCH scrambled with a P-RNTI and indicating a Paging message. When DRX is used, the UE only needs to detect 1 PO per DRX cycle, that is, only 1 subframe is available for transmitting Paging per Paging cycle for each UE. The DRX cycle is the same concept as the Paging cycle. The Paging Frame (PF) is a radio Frame, which may contain one or more POs.
In the 5G NR, in order to improve the coverage of the synchronization and physical broadcast channels, the 5G synchronization signal and the physical broadcast channel introduce a beam scanning function. In the NR, the primary and secondary synchronization signals and the broadcast channel form a synchronization signal/Physical broadcast channel Block (SS/PBCH Block, SSB) with a bandwidth of 20 Physical Resource Blocks (PRB) and occupying 4 consecutive OFDM symbols. Currently, SSB transmission periods supported in NR include 5ms,10ms,20ms,40ms,80ms, and 160 ms. It is noted that the initially accessed terminal will default to the SSB search at 20ms period.
From the distribution of SSBs over time domain locations, all SSB locations within the same period are limited to within 5 ms. For the frequency band below 3GHz, the maximum number Lmax of SSBs in one period can reach 4. The maximum number of SSBs can reach Lmax of 8 for the 3GHz-6GHz band. For the frequency band above 6GHz, the maximum number of SSBs can reach Lmax of 64.
Regarding the time domain position of the PDCCH (Type-0 PDCCH) search space scrambled by the SI-RNTI, the correlation relationship between the SSB and the Type-0 PDCCH search space is established in the NR, and the terminal can acquire the time domain position of the subsequent correlated Type-0 PDCCH search space when receiving any SSB.
The determination method of PF and PO is described below.
PF calculation
(1) For pattern1(SSB time division multiplexing with RMSI CORESET), no matter how many SSB periods (5ms,10ms,20ms,40ms,80ms,160ms), the RMSI period is always 20ms, so nB takes the value of T/2; following the LTE approach:
SFN mod T＝(T div N)*(UE_ID mod N)；
n min (T, nB) T/2, which indicates how many PFs are in each paging cycle; the T is a paging cycle; and the UE _ ID is a terminal identification.
Wherein, T div N is equivalent to the system frame number contained in each part after one DRX cycle is equally divided into N parts; the UE _ ID mod N is equivalent to the 'UE _ ID mod N' (with the value range of 0-N-1) in N equal parts, and the PF is the first system frame in the N equal parts.
For a certain UE, the PF is the system frame used for transmitting Paging, and the PO is the subframe used for transmitting Paging in the PF.
(2) For pattern2/3(SSB and RMSI CORESET time-domain and frequency-domain hybrid multiplexing, or SSB and RMSI CORESET frequency-domain multiplexing), the RMSI search space period and the SSB period are the same (5ms,10ms,20ms,40ms,80ms,160ms), so nB takes the values of 2T, T, T/2, T/4, T/8, T/16; the way to follow LTE may be:
SFN mod T＝(T div N)*(UE_ID mod N)；
n-min (T, nB) indicates how many PFs are in each paging cycle;
however, it is contemplated that SSB need not be transmitted only at even frames, but may be transmitted at odd frames. Then SFN mod T ═ T divN (UE _ ID mod N) + offset;
wherein, T is a paging cycle; the UE _ ID is a terminal identifier; for nB ═ T or 2T, the offset value is 0; for nB ═ T/2, the offset value is 0 or 1; for nB ═ T/4, the offset value is 0/1/2/3; for nB ═ T/8, the offset value is 0/1/2/3/4/5/6/7; for nB T/16, the offset value is 0/1/2/3/4/5/6/7/8/9/10/11/12/13/14/15.
(di) PO calculation
The determination method of the paging opportunity PO is determined by the following formula:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns < ═ 1, i _ s is 0; otherwise, i _ s is 1.
(1) For the case of pattern1(SSB time division multiplexed with RMSI CORESET), the n0Expressed by the following formula:
wherein, said n0Corresponding to the time slot position when i is 0, wherein i is the serial number of the SSB; the O and M are known parameters, the
The number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI.
(2) For pattern2/3(SSB time-domain and frequency-domain hybrid multiplexing with RMSI CORESET, or SSB frequency-domain multiplexing with RMSI CORESET), n0 is 0.
Under the condition of time division multiplexing of RMSI CORESET and SSB, for SSB with sequence number i, the time domain length of the associated Type-0 PDCCH search space is 2 continuous time slots, wherein the position of the first time slot is determined by the following formula:
wherein, the two parameters of O and M are given by Tables 13-11 and 13-12 in TS 38.211,
the number of time slots in a subframe in the interval unit of subcarriers of the RMSI; mu is the subcarrier spacing of RMSI. The frame number at which this time slot n0 occurs is determined by the following condition:
satisfy the requirement of
Time slot n0 is located on an even frame;
satisfy the requirement of
Time slot n0 is located on an odd frame.
The embodiment of the invention determines the paging position of the terminal based on the multiplexing mode of SSB and RMSI CORESET, provides a specific implementation method for determining the paging position of the terminal in the 5G NR on the basis of an LTE system, makes up the vacancy in the technology and has simple and convenient implementation process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (11)
1. A method for determining a paging location, the method comprising:
determining a multiplexing mode of a synchronous signal/physical broadcast channel block SSB and a residual minimum system message control resource set RMSI CORESET;
determining a paging frame PF and a paging opportunity PO in a terminal paging cycle based on the multiplexing mode of the SSB and the RMSI CORESET, determining a paging position of the terminal based on the PF and the PO, and monitoring a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI by the terminal; where there is only one PO for sending paging messages in each paging cycle.
2. The method of claim 1, wherein the SSB is multiplexed with the RMSI CORESET in any of the following manners:
SSB and RMSI CORESET time division multiplexing;
SSB and RMSI CORESET time domain and frequency domain mixed multiplexing;
the SSB is frequency division multiplexed with the RMSI CORESET.
3. The method of claim 2, wherein the determination of the paging frame PF when the SSB is time-division multiplexed with a RMSI core is determined by the following equation:
SFN mod T＝(T div N)*(UE_ID mod N)；
wherein the SFN represents a Paging Frame (PF); the N represents how many PFs are in each paging cycle, N is min (T, nB) is T/2; the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is T/2.
4. The method as claimed in claim 2, wherein when the SSB is time-domain and frequency-domain hybrid multiplexing with RMSI CORESET or when the SSB is frequency-domain multiplexing with RMSI CORESET, the determination method of the paging frame PF is determined by the following formula:
SFN mod T＝(T div N)*(UE_ID mod N)+offset；
wherein the SFN represents a Paging Frame (PF); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the UE _ ID is a terminal identifier; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; the offset value is determined by the value of nB.
5. The method according to claim 4, wherein the offset value is determined by the value of nB, including any of:
for nB ═ T or 2T, the offset value is 0;
for nB ═ T/2, the offset value is 0 or 1;
for nB ═ T/4, the offset value is 0, or 1, or 2, or 3;
for nB ═ T/8, the offset value is 0, or 1, or 2, or 3, or 4, or 5, or 6, or 7;
for nB ═ T/16, the offset value is 0, or 1, or 2, or 3, or 4, or 5, or 6, or 7, or 8, or 9, or 10, or 11, or 12, or 13, or 14, or 15.
6. The method of claim 2, wherein the determination method of the Paging Opportunity (PO) is determined by the following formula:
slot_PO＝n0+ i _ s (number of slots within 5 ms);
wherein the slot _ PO represents a paging opportunity PO; n is0Indicating a time slot position corresponding to the time when i is 0, wherein i is the serial number of the SSB; the i _ s ═ floor (UE _ ID/N) mod Ns; the UE _ ID is a terminal identifier; the Ns is max (1, nB/T); the N indicates how many PFs are in each paging cycle, N ═ min (T, nB); the T is a paging cycle; the value of nB is 2T, or T/2, or T/4, or T/8, or T/16; when Ns<When 1, i _ s is 0; otherwise, i _ s is 1.
7. The method of claim 6, wherein n is the same when the SSB is time-division multiplexed with the RMSI CORESET0Expressed by the following formula:
wherein, said n0Indicating a time slot position corresponding to the time when i is 0, wherein i is the serial number of the SSB; the O and M are known parameters, the
For spacing the subcarriers in RMSIThe number of slots in a subframe of bits; mu is the subcarrier spacing of RMSI.
8. The method as claimed in claim 6, wherein n is n when SSB and RMSI CORESET time domain hybrid multiplexing or SSB and RMSI CORESET frequency domain frequency division multiplexing are performed0＝0。
9. An apparatus for determining a paging location, the apparatus comprising:
a first determining module, configured to determine a multiplexing mode of a synchronization signal/physical broadcast channel block SSB and a remaining minimum system message control resource set RMSI CORESET;
a second determining module, configured to determine, based on the multiplexing mode of the SSB and the RMSI CORESET, a paging frame PF and a paging opportunity PO in a terminal paging cycle, determine, based on the PF and the PO, a paging location of the terminal, and use the terminal to monitor a physical downlink control channel PDCCH scrambled by a system message radio network temporary identifier SI-RNTI; where there is only one PO for sending paging messages in each paging cycle.
10. An apparatus for determining a paging location, the apparatus comprising: a processor and a memory for storing a computer program capable of running on the processor,
wherein the processor is adapted to perform the steps of the method of any one of claims 1-8 when running the computer program.
11. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 8.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184401A1 (en) * | 2015-05-18 | 2016-11-24 | Mediatek Singapore Pte. Ltd | Method and apparatus of enhanced paging |
| CN108012329A (en) * | 2017-09-27 | 2018-05-08 | 华为技术有限公司 | A kind of method of paging, the method and apparatus for the timing that communicates |
| CN108064466A (en) * | 2017-11-15 | 2018-05-22 | 北京小米移动软件有限公司 | The cycle information indicating means of the public control resource collection of remaining critical system information |
| WO2018106004A1 (en) * | 2016-12-06 | 2018-06-14 | Lg Electronics Inc. | Method and user equipment for receiving downlink signals |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015051547A1 (en) * | 2013-10-12 | 2015-04-16 | 华为技术有限公司 | Paging method and apparatus |
-
2018
- 2018-08-09 CN CN201810900620.9A patent/CN110831151B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016184401A1 (en) * | 2015-05-18 | 2016-11-24 | Mediatek Singapore Pte. Ltd | Method and apparatus of enhanced paging |
| WO2018106004A1 (en) * | 2016-12-06 | 2018-06-14 | Lg Electronics Inc. | Method and user equipment for receiving downlink signals |
| CN108012329A (en) * | 2017-09-27 | 2018-05-08 | 华为技术有限公司 | A kind of method of paging, the method and apparatus for the timing that communicates |
| CN108064466A (en) * | 2017-11-15 | 2018-05-22 | 北京小米移动软件有限公司 | The cycle information indicating means of the public control resource collection of remaining critical system information |
Non-Patent Citations (3)
| Title |
|---|
| "R1-1720939_Remaining details on paging".《3GPP tsg_ran\WG1_RL1》.2017, * |
| "R1-1802675 Remaining details for NR paging v0";Motorola Mobility，Lenovo;《3GPP tsg_ran\WG1_RL1》;20180217;第1-2页 * |
| "R1-1803253".《3GPP tsg_ran\WG1_RL1》.2018, * |
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