CN110535542B - Monitoring method and device, sending method and device and storage medium of control channel - Google Patents

Monitoring method and device, sending method and device and storage medium of control channel Download PDF

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CN110535542B
CN110535542B CN201910026460.4A CN201910026460A CN110535542B CN 110535542 B CN110535542 B CN 110535542B CN 201910026460 A CN201910026460 A CN 201910026460A CN 110535542 B CN110535542 B CN 110535542B
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ssb
sfn
index
radio frame
time slot
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CN110535542A (en
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苗婷
毕峰
刘文豪
卢有雄
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ZTE Corp
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ZTE Corp
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B17/00—Monitoring; Testing
    • H04B17/30—Monitoring; Testing of propagation channels
    • H04B17/382—Monitoring; Testing of propagation channels for resource allocation, admission control or handover
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0001—Arrangements for dividing the transmission path
    • H04L5/0003—Two-dimensional division
    • H04L5/0005—Time-frequency
    • H04L5/0007—Time-frequency the frequencies being orthogonal, e.g. OFDM(A), DMT
    • H04L5/0008—Wavelet-division
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames

Abstract

The application discloses a monitoring method and device, a sending method and device and a computer readable storage medium of a control channel. The monitoring method of the control channel comprises the following steps: the receiving end determines the monitoring opportunity of the PDCCH according to at least one of the first parameter, the index of the wireless frame where the synchronization signal block SSB with the index of i is located, the time offset and the second parameter, and monitors the PDCCH on the determined monitoring opportunity of the PDCCH. According to the scheme provided by the embodiment, the monitoring opportunity of the PDCCH is flexible, the monitoring power consumption of the receiving end is reduced, the resource utilization rate is improved, and the complexity of system design is reduced.

Description

Monitoring method and device, sending method and device and storage medium of control channel
Technical Field
The embodiment of the invention relates to a monitoring method and device, a sending method and device and a computer readable storage medium of a control channel.
Background
In a New Radio (NR) system, each Synchronization Signal Block (SSB) includes a primary synchronization Signal, a secondary synchronization Signal, a Physical Broadcast Channel (PBCH), and a demodulation reference Signal corresponding to the PBCH, each SSB corresponds to one beam direction or one port, a base station transmits a plurality of SSBs in a beam polling manner in a synchronization period, and the SSBs in the synchronization period are located in a half of a Radio frame and form an SSB burst set (SSB burst set). The maximum number of SSBs included in the SSB burst set varies for different frequency band ranges. The synchronization period includes the following values: 5ms (millisecond), 10ms,20ms,40ms,80ms and 160ms. The UE (User Equipment) of initial access assumes a synchronization period of 20ms. During the initial access process, the UE detects the SSB on the synchronization grid, thereby completing downlink synchronization and identifying a preferred beam or port by measurement.
In the NR System, the System Information is divided into Minimum System Information (OSI), which is further divided into a main System Information Block (Master Information Block, MIB) carried on the PBCH and Remaining Minimum System Information (RMSI), also called SIB1 (System Information Block 1 ), carried on the downlink shared channel, and Other System Information (OSI). The primary system information block is used to provide basic system parameters of the cell, and the remaining minimum system information is used to provide configuration information related to initial access, such as random access resource configuration. Other system information that needs to be broadcast is referred to as other system information.
For a cell supporting initial access of UE, PBCH needs to provide Resource configuration of a Control Channel PDCCH (Physical Downlink Control Channel) corresponding to common information, including common Control Resource Set (CORESET) configuration and PDCCH search space configuration information, where the CORESET configuration includes a frequency domain position and a bandwidth of CORESET and a symbol number occupied by a time domain, and in addition, a multiplexing mode of SSB and CORESET is also provided; the PDCCH search space configuration information indicates possible time domain locations of COSESET, and the PDCCH search space is also called PDCCH monitoring occasion and includes at least one of: the offset between the starting point of the first PDCCH monitoring window and the starting boundary of an even number radio frame, the number of search space sets in a time slot, the offset between adjacent PDCCH monitoring windows, and the starting symbol index of each search space set (or CORESET) in a time slot. Wherein the common information includes remaining minimum system information, other system information, a paging message, and the like.
An Integrated Access and Backhaul (IAB) is an important research topic in an NR system, and an IAB node, that is, a relay node in the NR system, can flexibly and densely deploy NR cells using a wireless IAB node without laying a large number of optical fibers, thereby saving network deployment cost.
The IAB node has two functions: 1) DU (Distributed Unit) functionality, i.e. an IAB node provides radio access functionality like a base station for a UE or a sub-IAB node; 2) Mobile-Termination (MT) functionality, i.e., an IAB node is controlled and scheduled by a home IAB (donor IAB) or an upper IAB node (parent IAB node) like a UE.
The following recommendations are made for initial access by the IAB node MT in a non-stand-alone (NSA) deployment at a relevant standard conference: when the IAB node MT initially accesses on the NR carrier, the initial access process is the same as that in independent deployment, and the initial access MT assumes that the period of SSB/RMSI is more than 20ms, such as 40ms,80ms,160ms and the like. This means that in NSA deployment, the parent IAB node or the home IAB supports MT initial access on NR carrier, and SSB/RMSI actual transmission period is greater than 20ms for saving system overhead, unlike the related art, and therefore, a solution therefor needs to be provided.
Disclosure of Invention
At least one embodiment of the invention provides a monitoring method and device, a sending method and device and a computer readable storage medium of a control channel, which are suitable for a scene with a longer SSB sending period.
An embodiment of the present invention provides a method for monitoring a control channel, including:
the method comprises the steps that a receiving end determines monitoring time of a Physical Downlink Control Channel (PDCCH) according to at least one of a first parameter and an index, time offset and a second parameter of a radio frame where a Synchronization Signal Block (SSB) with the index being i is located, and monitors the PDCCH at the determined monitoring time of the PDCCH, wherein the first parameter is a PDCCH monitoring time period, or a sending time period of the PDCCH, or a sending period of default residual minimum system information SIB1, or a repeated sending period of default SIB1, or a sending period of SIB1 assumed by the receiving end, or a predefined positive integer, the time offset is offset of an initial time slot of the monitored PDCCH corresponding to the SSB with the index being 0 relative to a radio frame initial boundary where the time slot is located, or offset of a first monitoring time slot in the PDCCH monitoring period relative to an initial position of the PDCCH monitoring period, and the second parameter is the sending period of the SSB assumed by the receiving end, or the predefined positive integer.
An embodiment of the present invention provides a method for sending a control channel, including:
the method comprises the steps that a sending end determines sending time of a PDCCH according to at least one of a first parameter, an index of a wireless frame where a synchronization signal block SSB with the index being i is located, a time offset and a second parameter, and the PDCCH is sent at the determined sending time of the PDCCH, wherein the first parameter is a PDCCH monitoring time period, or the sending time period of the PDCCH, or a default sending period of the rest minimum system information SIB1, or a default SIB1 repeated sending period, or a SIB1 sending period assumed by a receiving end, or a predefined positive integer, the time offset is offset of a starting wireless frame of the monitored PDCCH corresponding to the SSB with the index being 0 relative to a starting boundary where the time slot is located, or offset of a first monitoring time slot in the PDCCH monitoring period relative to a starting position of the PDCCH monitoring period, and the second parameter is the SSB sending period assumed by the receiving end, or the predefined positive integer.
An embodiment of the present invention provides a monitoring apparatus for a control channel, including a memory and a processor, where the memory stores a program, and when the program is read and executed by the processor, the monitoring apparatus for a control channel according to any embodiment of the present invention is implemented.
An embodiment of the present invention provides a computer-readable storage medium, where one or more programs are stored in the computer-readable storage medium, and the one or more programs are executable by one or more processors to implement the method for monitoring a control channel according to any embodiment.
An embodiment of the present invention provides a control channel transmission apparatus, including a memory and a processor, where the memory stores a program, and the program, when read and executed by the processor, implements the control channel transmission method according to any embodiment.
An embodiment of the present invention provides a computer-readable storage medium storing one or more programs, which are executable by one or more processors to implement the method for transmitting a control channel according to any embodiment.
Compared with the related art, in at least one embodiment of the present invention, the receiving end determines the monitoring opportunity of the PDCCH according to at least one of the first parameter, the index of the radio frame where the synchronization signal block SSB with the index of i is located, the time offset, and the second parameter, and monitors the PDCCH at the determined monitoring opportunity of the PDCCH. The scheme provided by the embodiment solves the problems that the power consumption of the receiving end is increased and the flexibility of resource configuration or frame structure configuration is limited due to the fact that the repetition period of the PDCCH monitoring opportunity is small in the related technology, reduces the monitoring power consumption of the receiving end, improves the resource utilization rate and reduces the complexity of system design.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
The accompanying drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the example serve to explain the principles of the invention and are not intended to limit the invention.
FIG. 1 is a schematic diagram of three multiplexing modes;
fig. 2 is a flowchart of a method for monitoring a control channel according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for transmitting a control channel according to an embodiment of the present invention;
fig. 4 is a block diagram of a monitoring apparatus for a control channel according to an embodiment of the present invention;
FIG. 5 is a block diagram of a computer-readable storage medium provided by an embodiment of the invention;
fig. 6 is a block diagram of a transmitting apparatus of a control channel according to an embodiment of the present invention;
fig. 7 is a block diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the embodiments and features of the embodiments in the present application may be arbitrarily combined with each other without conflict.
The steps illustrated in the flow charts of the figures may be performed in a computer system such as a set of computer-executable instructions. Also, while a logical order is shown in the flow diagrams, in some cases, the steps shown or described may be performed in an order different than here.
In the related art, for a terminal (e.g., a UE), a PDCCH monitoring occasion of common information is repeated every 20ms at the longest; for the IAB node MT, the transmission period of the SSB is greater than 20ms, so the PDCCH monitoring occasion is repeated without 20ms. In addition, for the symbols of the PDCCH provided to monitor the common message, the terminal does not expect the symbols to be reconfigured as uplink symbols U, so if the symbols set to be flexible are configured as PDCCH monitoring occasions, the symbols cannot be dynamically reconfigured as uplink symbols, that is, the flexibility of resource configuration or frame structure configuration is limited when unnecessary PDCCH monitoring is performed. Therefore, how to design PDCCH monitoring occasions to reduce unnecessary monitoring occasions to save MT monitoring power consumption and to reduce the limitation on resource configuration or frame structure configuration to improve resource utilization is a problem to be solved.
In an embodiment of the present invention, the receiving end is based on the first parameter T C Index SFN of radio frame where SSB with index i is located SSB,i Time offset O, second parameter T SSB Determines a monitoring occasion of the PDCCH, and monitors the PDCCH at the determined monitoring occasion. The scheme provided by the embodiment solves the problem of PDCCH existing in the related technologyThe receiving end power consumption is increased and the flexibility of resource configuration or frame structure configuration is limited due to the fact that the repetition period of the monitoring time is small, the monitoring power consumption of the receiving end is reduced, the resource utilization rate is improved, and the complexity of system design is reduced.
Some physical concepts in the embodiments are illustrated below:
the NR system defines two frequency ranges: FR1 (a first frequency range) corresponds to 450MHz-6000MHz (or a frequency band below 6 GHz), the subcarrier interval of the SSB is 15kHz or 30kHz, and the subcarrier interval of the common information or a control channel PDCCH (PDCCH for convenience of description, abbreviated as PDCCH) corresponding to the SIB1 or a control resource set CORESET (CORESET for convenience of description, abbreviated as CORESET) corresponding to the SIB1 is also 15kHz or 30kHz; FR2 (second frequency range) corresponds to 24250MHz-52600MHz (or a band above 6 GHz), SSB has subcarrier spacing of 120kHz or 240kHz, and PDCCH or CORESET has subcarrier spacing of 60kHz or 120kHz. The PDCCH and the PDSCH (Physical Downlink Shared Channel) scheduled by the PDCCH have the same subcarrier spacing.
The PDCCH monitoring occasions (PDCCH monitoring occasions) are related to the multiplexing modes of SSB and CORESET, the multiplexing modes of SSB and CORESET are three, fig. 1 shows schematic diagrams of the three multiplexing modes, for the first multiplexing mode, the SSB and CORESET are orthogonal in the time domain, and the SSB and CORESET may overlap in the frequency domain; for the second multiplexing mode, in the time domain, the SSB and the CORESET are located in the same radio frame (also referred to as a system frame), the time slot is the same or the CORESET is in the previous time slot of the SSB, and in the frequency domain, the SSB and the CORESET are orthogonal; for the third multiplexing mode 3, SSB and CORESET start symbols are aligned in the time domain and are orthogonal in the frequency domain.
The PDCCH monitoring occasions are periodic, each PDCCH monitoring occasion period comprising one or more monitoring windows, each monitoring window comprising one or more monitoring occasions. Each SSB has a corresponding PDCCH monitoring window, which has a duration of one or more slots (slots), typically 2 slots. And in each PDCCH monitoring window corresponding to the SSB, one or more potential configuration resources of CORESET are contained, and the sending end selects one PDCCH for transmitting the PDCCH corresponding to the SSB. And the receiving end finds a PDCCH monitoring window corresponding to the SSB according to the selected (detected) SSB index and the PDCCH configuration information, and blindly detects the PDCCH on CORESET potential configuration resources in the window. The PDCCH configuration information includes core set configuration information and PDCCH search space configuration information (also referred to as PDCCH monitoring opportunity configuration information); further, the CORESET configuration information includes at least one of the following: a Frequency domain location of the CORESET, a bandwidth of the CORESET (e.g., 24 RBs, 48 RBs, 96 RBs, etc.), a duration of the CORESET (e.g., 1 OFDM (Orthogonal Frequency Division Multiplexing) symbol, or 2 OFDM symbols, or 3 OFDM symbols, etc.). The PDCCH search space configuration information includes at least one of: the deviation of the starting point of the first PDCCH monitoring window relative to the starting boundary of the wireless frame in which the first PDCCH monitoring window is positioned in the PDCCH monitoring opportunity period; the number of search space sets (which can be understood as the number of monitoring occasions) in a slot; monitoring offset between windows by using adjacent PDCCHs; the starting symbol index of a set of spaces is searched within a slot.
In this application, the transmitting end includes, but is not limited to, an LTE-advanced (Long Term Evolution) base station, an NR base station, an IAB node, a relay node, a DU part of the IAB node, and the receiving end includes, but is not limited to, the relay node, the IAB node, an MT part of the IAB node, a future terminal, and the like. Typically, the sender may be a DU of an IAB node and the receiver may be the MT portion of a child IAB node of the IAB node.
Example one
In this embodiment, a method for monitoring a control channel is provided, as shown in fig. 2, the method includes:
step 201, a receiving end determines a monitoring opportunity of a PDCCH (physical downlink control channel) according to at least one of a first parameter, an index of a wireless frame where a synchronization signal block SSB with an index of i is located, time offset and a second parameter;
wherein the first parameter T C Indicates a PDCCH monitoring opportunity period, a PDCCH transmission opportunity period, a default SIB1 transmission period, a default SIB1 retransmission period, orThe transmission period of the SIB1 assumed by the receiving end, or the repeated transmission period of the SIB1 assumed by the receiving end, or a predefined positive integer; the time offset O represents an offset of an initial time slot of a PDCCH for monitoring a physical downlink control channel corresponding to the SSB with an index of 0 with respect to an initial boundary of a radio frame in which the time slot is located, or an offset of a first monitoring time slot in a PDCCH monitoring period with respect to an initial position of the PDCCH monitoring period;
second parameter T SSB And represents a transmission period of the SSB assumed by the receiving end, or a predefined positive integer.
Further, SFN is used as the index (i.e., system frame number) of the radio frame in which the SSB having index i is located SSB,i Representing;
step 202, the receiving end monitors the PDCCH at the determined monitoring occasion of the PDCCH.
In an embodiment, the determining, by the receiving end, the monitoring occasion of the PDCCH according to at least one of the first parameter, an index of a radio frame where the SSB with the index i is located, a time offset, and a second parameter includes:
determining a time slot n according to at least one of the first parameter, the index of the wireless frame where the SSB with the index of i is located, the time offset and the second parameter C Or starting time slot n 0 ；
The monitoring the PDCCH on the determined monitoring occasion of the PDCCH comprises:
in the time slot n C Or in said time slot n 0 Monitoring PDCCH in K time slots of the starting time slot, wherein K is a positive integer. The value of K is predefined, typically K =2, or is obtained from PBCH. The K time slots may be continuous or discrete, and in a discrete manner, the K time slots may be in a preset discrete mode, that is, the K time slots are distributed according to the preset mode, and the like.
Wherein, T is C Is a predefined fixed value or is acquired from PBCH; in one embodiment, T C The unit of radio frame is converted into radio frame when expressed by other time units, and 10 milliseconds is one radio frame, such as T C The indicated period value is X milliseconds, then T C ＝X/10。
Wherein, the T is SSB In units of radio frames, with T C Similarly, time in other time units translates to radio frames.
Wherein the time offset O is provided by PBCH.
Compared with the related technology, the scheme provided by the embodiment can enable the PDCCH to monitor the radio frame index SFN where the time slot or the initial time slot is located C The method is associated with the SSB sending period assumed by the receiving end, or associated with the parameters configured by the sending end, or associated with the predefined parameters, so that the PDCCH monitoring opportunity period or the PDCCH monitoring opportunity is more flexible, and the PDCCH monitoring opportunity period is not limited by 20 milliseconds at most any more.
In one embodiment, the
Figure BDA0001942672420000081
If it is not
Figure BDA0001942672420000082
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT =0; if it is not
Figure BDA0001942672420000083
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT =1; where O is a time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by a physical broadcast channel PBCH,
Figure BDA0001942672420000084
configuring the number of slots of mu per radio frame for a subcarrier spacing, T being the first parameter T C Or the second ginsengNumber T SSB . Wherein, the mu belongs to {0,1,2,3} is the subcarrier spacing configuration of CORESET, and is obtained from PBCH; the time slots are time slots based on a subcarrier spacing of CORESET.
When T is the first parameter T C When the method is used:
the above-mentioned
Figure BDA0001942672420000085
If it is not
Figure BDA0001942672420000086
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT C =0; if it is not
Figure BDA0001942672420000087
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝1。
When T is the second parameter T SSB When the method is used:
the described
Figure BDA0001942672420000091
If it is used
Figure BDA0001942672420000092
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT SSB =0; if it is used
Figure BDA0001942672420000093
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT SSB ＝1。
In one embodiment, the
Figure BDA0001942672420000094
If it is not
Figure BDA0001942672420000095
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT＝m 12 (ii) a If it is not
Figure BDA0001942672420000096
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT＝n 12 And T is the first parameter T C Or said second parameter T SSB ，m 12 And n 12 Is a non-negative integer less than T. m is 12 And n 12 Either as a predefined fixed value or provided by the PBCH. In one embodiment, the n 12 ＝m 12 +1。
T is the first parameter T C A second parameter T SSB The description is given separately.
When T is the first parameter T C The method comprises the following steps:
the above-mentioned
Figure BDA0001942672420000097
If it is used
Figure BDA0001942672420000098
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝m 1 (ii) a If it is used
Figure BDA0001942672420000099
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝n 1 (ii) a Wherein m is 1 And n 1 Is less than T C Can be a predefined fixed value or be derived from PBCH, typically n 1 ＝m 1 +1；
When T is the second parameter T SSB The method comprises the following steps: the above-mentioned
Figure BDA00019426724200000910
If it is used
Figure BDA00019426724200000911
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT SSB ＝m 2 (ii) a If it is not
Figure BDA00019426724200000912
Then n is 0 Index SFN of located radio frame C Satisfy SFN C modT SSB ＝n 2 (ii) a Wherein m is 2 And n 2 Is less than T SSB May be a predefined fixed value or may be derived from the PBCH, typically n 2 ＝m 2 +1。
In one embodiment, the
Figure BDA00019426724200000913
If it is not
Figure BDA00019426724200000914
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure BDA00019426724200000915
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2。
In one embodiment, the
Figure BDA00019426724200000916
If it is not
Figure BDA00019426724200000917
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 3 (ii) a If it is not
Figure BDA00019426724200000918
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 3 . Wherein m is 3 And n 3 Is an integer, can be a predefined fixed value, or is derived from PBCH, typically n 3 ＝m 3 +1；
In one embodiment, the
Figure BDA0001942672420000101
If O is greater than 0 and
Figure BDA0001942672420000102
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i ；
If O is greater than 0 and
Figure BDA0001942672420000103
or, if O is equal to 0 and
Figure BDA0001942672420000104
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1；
If O is equal to 0 and
Figure BDA0001942672420000105
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2；
In one embodiment, the
Figure BDA0001942672420000106
If O is greater than 0 and
Figure BDA0001942672420000107
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 4 ；
If O is greater than 0 and
Figure BDA0001942672420000108
or, if O is equal to 0 and
Figure BDA0001942672420000109
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 4 ；
If O is equal to 0 and
Figure BDA00019426724200001010
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +k 4 (ii) a Wherein m is 4 ，n 4 And k 4 Is an integer, may be a predefined fixed value, or is derived from PBCH, typically n 4 ＝m 4 +1,k 4 ＝m 4 +2；
In one embodiment, the n C ＝n SSB,i Or n C ＝n SSB,i -1, time slot n C Index SFN of located radio frame C ＝SFN SSB,i ；
In an embodiment, the SFN in the above embodiments SSB,i Satisfies the following conditions: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB (ii) a Wherein n can be predefined as a fixed value or obtained from PBCH (physical broadcast channel) with a value range
Figure BDA00019426724200001011
Is a positive integer.
In one embodiment, the
Figure BDA00019426724200001012
N is 0 Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Or SFN C ＝SFN SSB,i +1。
In one embodiment, the
Figure BDA0001942672420000111
If it is used
Figure BDA0001942672420000112
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB (ii) a If it is not
Figure BDA0001942672420000113
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB +1。
In one embodiment, the time slot n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB 。
In one embodiment, the time slot n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝0。
In one embodiment, the time slot n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝m 5 . Wherein m is 5 Is less than T C May be a predefined fixed value or may be derived from PBCH.
In an embodiment, for an SSB with index i, one or more configurations may be predefined according to respective subcarrier intervals of the SSB and a PDCCH and a frequency band range in which the SSB and the PDCCH are located, where each configuration indicates a PDCCH monitoring timeslot n corresponding to each SSB in an SSB transmission period C ＝n SSB,i Or n C ＝n SSB,i -1, configuring the corresponding index to be indicated in PBCH.
In one embodiment, the receiving end determines the time slot n C Or in time slots n 0 Monitoring the PDCCH for K slots of the starting slot includes: the receiving end configures and indexes i based on CORESET, and at least one of the time slot where the common control resource set corresponding to the SSB is located and the initial symbol index of CORESET in the time slotOne item, determining the time slot n C Or in time slots n 0 And monitoring PDCCH on the determined CORESET time-frequency resource in K time slots of the initial time slot. And the receiving end calculates the time slot in which the common control resource set corresponding to the SSB with the index i is positioned according to the parameters provided by the PBCH or the time slot in which the CORESET configuration and the initial symbol index of the CORESET in the time slot are obtained from the PBCH.
In the following example, the receiving end is taken as a terminal, the first parameter is a monitoring opportunity period of the PDCCH, and the second parameter is a transmission period of the SSB. It should be noted that the present application is not limited thereto, and the first parameter and the second parameter are similar when they are other values, and are not described again.
Example one: specifying or configuring PDCCH monitoring occasion periods
The present example shows a process in which the terminal monitors the PDCCH in the first multiplexing mode.
The terminal monitors the PDCCH on 2 consecutive time slots, the first time slot of the two consecutive time slots (i.e. time slot n) 0 ) The following conditions are satisfied:
for the SSB with index i,
Figure BDA0001942672420000121
if it is not
Figure BDA0001942672420000122
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C = m; if it is not
Figure BDA0001942672420000123
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝m+1。
Wherein, T C Represents the PDCCH monitoring opportunity period, and the unit is a radio frame (when the unit is other units, the unit is converted into the radio frame), such as T C =8 indicates that the PDCCH monitoring opportunity period is 8 radio frames, that is, the PDCCH monitoring opportunity corresponding to the SSB with index i repeats every 80 milliseconds; m represents a time slot n 0 Is located atIn the radio frame of PDCCH monitoring opportunity period, i.e. time slot n 0 And the wireless frame is deviated in the PDCCH monitoring opportunity period. For example m is 0 for time slot n 0 And the first radio frame is positioned in the PDCCH monitoring opportunity period. E.g. T C Where =8 and m =0,
Figure BDA0001942672420000124
representing a time slot n 0 The index of the located radio frame can be
Figure BDA0001942672420000125
Indicating a gap n 0 The index of the wireless frame may be 1,9,17. T is C And m is agreed upon in the protocol, e.g. T C Transmission period T of SSB assumed for terminals (MTs) SSB Then T in the above formula is used C By changing to T SSB That is, m is 0; in addition, T C The value of m and m can also be indicated in PBCH, that is, the value is carried in PBCH, and the terminal acquires T by receiving and decoding PBCH C And the value of m; the mu belongs to {0,1,2,3} and is configured for the subcarrier interval, and the value is determined based on the subcarrier interval used by PDCCH (namely CORESET);
Figure BDA0001942672420000126
indicating the number of slots per radio frame for which the subcarrier spacing is configured. In other embodiments, the T C Indicating the transmission period of SIB1 assumed by the terminal, or the repeated transmission period of SIB1 assumed by the terminal, or a predefined positive integer.
The above-mentioned two consecutive time slots n 0 And n 0 +1 constitutes a monitoring window, where table 1 is a PDCCH monitoring opportunity example in FR1 frequency band multiplexing mode pattern1 (i.e., the first multiplexing mode), where O represents an offset of a starting time slot of a PDCCH for monitoring a Physical Downlink Control Channel (PDCCH) corresponding to an SSB with an index of 0 with respect to a starting boundary of a radio frame where the time slot is located, or an offset (in milliseconds) of a starting point of a first PDCCH monitoring window (i.e., a monitoring window corresponding to an SSB with an index of 0) with respect to a starting boundary of a PDCCH monitoring opportunity period in the PDCCH monitoring opportunity period, that is, the time offset, and a value packetComprises the following steps: 0,2,5,7, which is only exemplary here, but may also have other values, for example 4.N represents the number of search space sets (or monitoring opportunities) in one slot; m is an intermediate parameter and has no physical significance; n × M represents the offset between adjacent PDCCH monitoring windows, i.e. the number of slots or the number of search space sets offset between the starting point of the nth PDCCH monitoring window and the starting point of the (N + 1) th PDCCH monitoring window, where the slots correspond to the subcarrier spacing of the CORESET. The start symbol index (First symbol index) represents the start symbol within a slot for each PDCCH monitoring occasion (or CORESET),
Figure BDA0001942672420000131
representing the number of symbols contained by CORESET. i is the SSB index.
TABLE 1
Figure BDA0001942672420000132
TABLE 2
Figure BDA0001942672420000141
Table 2 shows an example of PDCCH monitoring occasions in the FR2 band multiplexing mode pattern1 (i.e., the first multiplexing mode). Wherein the meaning of each parameter is the same as table 1, the main difference is that the value of the parameter O is different, and the values in table 2 include: 0ms,2.5ms,5ms,7.5ms, where ms is milliseconds. For example, the primary reason is that for the FR2 band, the duration of the SSB burst set in one synchronization period is different, and the SSB and the CORESET in the first multiplexing mode are orthogonal in the time domain, so that the starting point of the first PDCCH monitoring window corresponding to the FR1 and FR2 bands is the radio frame where the first PDCCH monitoring window is located (i.e. SFN is satisfied), and other values are also possible (e.g. 1.25ms,2.25ms,4.75ms, etc.) C modT C Radio frame of = m) the offset O between the starting boundaries may be different.
Table 1 and table 2 contain 16 configurations (some configurations in table 2 are reserved), and corresponding configuration indexes (indexes) 0 to 15 indicate which configuration is adopted by the current PDCCH monitoring occasion with 4 bits in the PBCH. The configurations given in tables 1 and 2 are merely examples, and other configurations are not excluded.
In this example, the SFN C The conditions satisfied may also be: SFN C modT C ＝SFN SSB,i modT SSB (ii) a Alternatively, SFN C modT C =0; wherein the SFN is SSB,i The system frame number (i.e. index) of the radio frame where the SSB with index i is located; t is a unit of SSB Is a predefined fixed value and represents the transmission period of the SSB assumed by the terminal, or a predefined positive integer.
It is worth noting that the more general case of this example is:
for the SSB with index i,
Figure BDA0001942672420000151
if it is not
Figure BDA0001942672420000152
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝m 1 (ii) a If it is used
Figure BDA0001942672420000153
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝n 1 . Wherein m is 1 And n 1 Is less than T C May be a predefined fixed value or indicated in PBCH, typically n 1 ＝m 1 +1；
Alternatively, the first and second electrodes may be,
for the SSB with index i,
Figure BDA0001942672420000154
if it is not
Figure BDA0001942672420000155
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT SSB ＝m 2 (ii) a If it is not
Figure BDA0001942672420000156
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT SSB ＝n 2 . Wherein m is 2 And n 2 Is less than T SSB Non-negative integer of (1), m 2 And n 2 May be a predefined fixed value or indicated in PBCH, typically n 2 ＝m 2 +1。
Example two: determining PDCCH monitoring opportunity based on index of wireless frame where SSB is located
The present example shows a process in which the terminal monitors the PDCCH in the first multiplexing mode.
In this example, the PDCCH monitoring occasion is located in the first radio frame or the second radio frame after the radio frame where the SSB is located.
The terminal monitors PDCCH on 2 continuous time slots, the first time slot n of the two continuous time slots 0 The following conditions are satisfied:
for the SSB with index i,
Figure BDA0001942672420000157
if it is used
Figure BDA0001942672420000158
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure BDA0001942672420000159
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2。
The meaning of the parameters in the above formula is the same as that of the previous example, the parameter values are shown in table 1 and table 2, the index corresponding to the parameter configuration is indicated in the PBCH, and the terminal acquires the corresponding parameters from the PBCH.
It is worth noting that the present example is more general:
for the SSB with index i,
Figure BDA0001942672420000161
if it is not
Figure BDA0001942672420000162
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 3 (ii) a If it is not
Figure BDA0001942672420000163
Then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 3 . Wherein m is 3 And n 3 Is an integer, can be a predefined fixed value, or indicated in PBCH, typically n 3 ＝m 3 +1。
Example three: determining PDCCH monitoring occasion based on index of wireless frame where SSB is located and assumed SSB period
The present example shows a process in which the terminal monitors the PDCCH in the first multiplexing mode.
Let T be C The transmission period of SSB assumed by the terminal is T, which represents the PDCCH monitoring opportunity period SSB The unit of the period is a radio frame, T C Greater than or equal to T SSB ，T SSB Can be predefined as a fixed value, T C May be indicated in PBCH or predefined as a fixed value, note
Figure BDA0001942672420000164
N 1 Is a positive integer.
The terminal monitors PDCCH on 2 continuous time slots, the first time slot n of the two continuous time slots 0 The following conditions are satisfied:
for the SSB with index i,
Figure BDA0001942672420000165
if it is used
Figure BDA0001942672420000166
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is used
Figure BDA0001942672420000167
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2. And the above-mentioned SFN SSB,i The conditions are satisfied: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB N can be predefined as a fixed value or indicated in PBCH, and the value range of N is less than or equal to N 1 Is a positive integer of (1, 2., N) 1 . Namely, the radio frame where the PDCCH monitoring occasion is located is determined by the radio frame where the SSB is located in the assumed nth SSB transmission period in the PDCCH monitoring occasion period.
This example can be seen as that some PDCCH monitoring occasions are dropped in the PDCCH monitoring occasion period of the previous example, that is, SSBs in some SSB burst sets do not have corresponding PDCCH monitoring occasions. For example, the PDCCH monitoring opportunity period is 8 radio frames, namely T C =8, the transmission period of the SSB assumed by the terminal is 4 radio frames, i.e. T SSB =4, that is to say that 1 PDCCH monitoring occasion period contains 2 transmission periods for the assumed SSBs, then if n =1, then SFN SSB,i The conditions are satisfied: SFN is not less than 0 SSB,i mod8 is less than 4, that is, the radio frame where the PDCCH monitoring occasion is located is determined by the radio frame where the SSB is located in the transmission period of the assumed 1 st SSB in the PDCCH monitoring occasion period.
Similarly, if it is agreed that n =2, then SFN SSB,i The conditions are satisfied: SFN is not less than 4 SSB,i mod8 < 8, that is, the PDCCH monitoring opportunity is determined by the radio frame where the SSB is located in the transmission period of the assumed 2 nd SSB in the PDCCH monitoring opportunity period.
The meaning of the parameters in the above formula is the same as the previous example, the parameter values are shown in table 1 and table 2, and the index corresponding to the parameter configuration is indicated in PBCH.
Example four: determining PDCCH monitoring opportunity based on indexes of wireless frames where O and SSB are located
The present example shows a process in which the terminal monitors the PDCCH in the first multiplexing mode.
The terminal acquires a PDCCH monitoring opportunity parameter O from PBCH:
1) If O is more than 0, the PDCCH monitoring opportunity is in a wireless frame where the SSB is located or a first wireless frame after the wireless frame where the SSB is located.
The terminal monitors PDCCH on 2 continuous time slots, the first time slot of the two continuous time slots n0 The following conditions are satisfied:
for the SSB with index i,
Figure BDA0001942672420000171
if it is used
Figure BDA0001942672420000172
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i (ii) a If it is not
Figure BDA0001942672420000173
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1。
2) If O is equal to 0, the PDCCH monitoring opportunity is in the first radio frame after the radio frame where the SSB is located or in the second radio frame after the radio frame where the SSB is located.
The terminal monitors PDCCH on 2 continuous time slots, the first time slot n of the two continuous time slots 0 The following conditions are satisfied:
for the SSB with index i,
Figure BDA0001942672420000181
if it is used
Figure BDA0001942672420000182
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure BDA0001942672420000183
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2。
It is worth noting that the more general case of this example is:
for the SSB with index i,
Figure BDA0001942672420000184
if O is greater than 0 and
Figure BDA0001942672420000185
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 4 (ii) a If O is greater than 0 and
Figure BDA0001942672420000186
or, if O is equal to 0 and
Figure BDA0001942672420000187
then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 4 (ii) a If O is equal to 0 and
Figure BDA0001942672420000188
then n is 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +k 4 (ii) a Wherein m is 4 ，n 4 And k 4 Is an integer, may be a predefined fixed value, or is indicated in PBCH, typically n 4 ＝m 4 +1,k 4 ＝m 4 +2。
Example five: determining PDCCH monitoring occasion based on indexes of wireless frames where O and SSB are located and assumed SSB period
The present example shows a process in which the terminal monitors the PDCCH in the first multiplexing mode.
Suppose PDCCH monitoring opportunity period is T C The transmission period of SSB assumed by the terminal is T SSB The unit of the period is a radio frame, and the period T C Greater than or equal to T SSB ，T SSB May be a predefined fixed value, T C Can be indicated in PBCH or predefined as a fixed value, note
Figure BDA0001942672420000189
N 1 Is a positive integer.
The terminal monitors PDCCH on 2 continuous time slots, the first time slot n of the two continuous time slots 0 The following conditions are satisfied:
for the SSB with index i,
Figure BDA00019426724200001810
time slot n 0 Index SFN of located radio frame C The condition that the PDCCH monitoring occasion is determined based on the indexes of the wireless frames where the O and the SSB are located in the last example is satisfied, and the SFN is SSB,i The conditions are satisfied: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB Where N may be predefined as a fixed value or indicated in PBCH, with a range of values 1,2 1 . Namely, the radio frame where the PDCCH monitoring opportunity is located is determined by the index of the radio frame where the SSB is located in the assumed nth SSB sending period in the PDCCH monitoring opportunity period and the value of O.
This example can be seen as that some PDCCH monitoring occasions are dropped in the PDCCH monitoring occasion period of the previous example, that is, SSBs in some SSB burst sets do not have corresponding PDCCH monitoring occasions. For example, the PDCCH monitoring opportunity period is 16 radio frames, namely T C =16, SSB transmission period assumed by the terminal is 4 radio frames, i.e. T SSB =4, that is, 1 PDCCH monitoring occasion period contains 4 transmission periods of assumed SSB, if n =3, SFN SSB,i The conditions are satisfied: SFN is not less than 8 SSB, i mod16 is less than 12, that is, the radio frame where the PDCCH monitoring occasion is located is determined by the index of the radio frame where the SSB is located in the 3 rd SSB sending period assumed in the PDCCH monitoring occasion period and the value of O.
The meaning of the parameters in the above formula is the same as the previous example, the parameter values are shown in table 1 and table 2, and the index corresponding to the parameter configuration is indicated in PBCH.
It is worth mentioning that: in the above example, the duration of the monitoring window is two time slots, which is only an example, and the method for determining the starting time slot when the duration is multiple time slots is similar to this, and is not described again here.
In addition, in the PDCCH monitoring occasion period, the number of radio frames for which the PDCCH monitoring occasion lasts is not limited to two consecutive radio frames, and may be one radio frame, for example, no matter whether the PDCCH monitoring occasion lasts for a period of time
Figure BDA0001942672420000191
Is the value of (d), time slot n 0 The indexes of the wireless frames are SFN C ＝SFN SSB,i +1, or SFN C modT C ＝SFN SSB,i modT SSB (ii) a Wherein, T SSB Is a predefined fixed value and represents the transmission period of the SSB assumed by the terminal, or a predefined positive integer.
The PDCCH monitoring occasion may also be continued over multiple radio frames, e.g., according to
Figure BDA0001942672420000192
(where X is an integer) determines the time slot n 0 The index of the wireless frame is the time slot n when the value is 0 0 The index of the wireless frame is SFN C ＝SFN SSB,i Time slot n with value 1 0 The index of the wireless frame is SFN C ＝SFN SSB,i +1, and so on, slot n for a value of X-1 0 The index of the wireless frame is SFN C ＝SFN SSB,i + X-1. Of course time slot n 0 The located radio frame may not be a continuous radio frame.
Example six: determining PDCCH monitoring occasions based on assumed SSB transmission period
The present example shows PDCCH monitoring occasion configurations in the second multiplexing mode and the third multiplexing mode.
Preferably, for the second multiplexing mode and the third multiplexing mode, for the SSB with index i, the terminal monitors the PDCCH in one time slot, where the time slot is denoted as n C 。
Suppose PDCCH monitoring opportunity period is T C The transmission period of SSB assumed by the terminal is T SSB The unit of the period is a radio frame, and the period T C Greater than or equal to T SSB ，T SSB Predefined as a fixed value, T C May be indicated in PBCH or predefined as a fixed value, note
Figure BDA0001942672420000201
N 1 Is a positive integer.
For the SSB with index i, the terminal monitors the PDCCH on one time slot, the PDCCH monitoring opportunity and the SSB are configured in the same time slot of the same wireless frame, or the previous time slot of the same wireless frame, namely the SFN C ＝SFN SSB,i ，n C ＝n SSB,i Or n C ＝n SSB,i -1, wherein SFN C And n C Respectively indicating the system frame number and the time slot index of the wireless frame where the CORESET is positioned; SFN SSB,i And n SSB,i Respectively, the system frame number and the time slot index of the wireless frame where the SSB with index i is located. The timeslots are based on the subcarrier spacing of CORESET (i.e., the control resource set for monitoring PDCCH). And SFN SSB,i The conditions are satisfied: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB Where N may be predefined as a fixed value or indicated in PBCH, with a value range of 1,2 1 . Namely, the radio frame where the PDCCH monitoring occasion is located is determined by the radio frame and the time slot where the SSB is located in the assumed nth SSB transmission period in the PDCCH monitoring occasion period.
The starting symbol within a slot for each PDCCH monitoring occasion (or CORESET) is different for different SSBs and PDCCH subcarrier spacing and different multiplexing patterns.
TABLE 3
Figure BDA0001942672420000202
Table 3 shows an example of PDCCH monitoring occasion configuration in the multiplexing mode pattern2 (i.e. the second multiplexing mode), that is, indicating the position of the PDCCH monitoring occasion (monitoring occasion), the subcarrier spacing applicable to the SSB is 120khz, and the subcarrier spacing of the PDCCH (or CORESET) is 60kHz. Wherein, the PDCCH monitoring opportunity and the corresponding SSB are configured in the same radio frame and the same time slot, namely SFN C ＝SFN SSB,i ，n C ＝n SSB,i In which the SFN of C And n C Respectively the system frame number and the time slot index of the radio frame where the CORESET is located; SFN SSB,i And n SSB,i Respectively the system frame number and the time slot index of the wireless frame where the SSB with the index of i is located. Wherein, the time slots are all based on the subcarrier spacing of the CORESET. For SSB index i =4k, i =4k +1, i =4k +2, i =4k +3, the starting symbol indexes of pdcch monitoring occasions are respectively: 0,1,6,7.
TABLE 4
Figure BDA0001942672420000211
Table 4 shows another example of PDCCH monitoring occasion configuration in the multiplexing pattern2 (i.e., the second multiplexing mode), where the subcarrier spacing for SSB is 240khz and the subcarrier spacing for PDCCH is 120kHz. The PDCCH monitoring opportunity and the corresponding SSB are configured in the same time slot of the same radio frame or the previous time slot of the same radio frame, namely SFN C ＝SFN SSB,i ，n C ＝n SSB,i Or n C ＝n SSB,i -1, wherein SFN C And n C Respectively indicating the system frame number and the time slot index of the wireless frame where the CORESET is positioned; SFN SSB,i And n SSB,i Respectively, the system frame number and the time slot index of the wireless frame where the SSB with index i is located. Wherein, the time slots are all based on the subcarrier spacing of the CORESET. For SSB index i =8k, i =8k +1, i =8k +2, i =8k +3, i =8k +6, i =8k +7, the starting symbol indexes of PDCCH monitoring timings are respectively: 0,1,2,3,0,1, and the slot index where the PDCCH is located is the same as the slot index where the SSB is located. For SSB index, i =8k +4, i =8k +5, and the starting symbol index of pdcch monitoring occasion are: 12,13, and the time slot of the PDCCH is positioned at the time slot before the time slot of the SSB.
TABLE 5
Figure BDA0001942672420000212
Table 5 shows the multiplexing mode pattern3 (i.e. the third multiplexing)In-mode), the subcarrier spacing for SSB is 120khz and the subcarrier spacing for PDCCH is 120kHz. The PDCCH monitoring opportunity and the corresponding SSB are configured in the same time slot of the same radio frame. Namely SFN C ＝SFN SSB,i ，n C ＝n SSB,i Wherein the SFN is C And n C Respectively indicating the system frame number and the time slot index of the wireless frame where the CORESET is positioned; SFN SSB,i And n SSB,i Respectively, the system frame number and the time slot index of the wireless frame where the SSB with index i is located. Wherein, the time slots are based on the subcarrier spacing of CORESET. For SSB index i =4k, i =4k +1, i =4k +2, i =4k +3, the starting symbol indices for pdcch monitoring occasions are: 4,8,2,6.
SFN in the above Table 3, table 4 and Table 5 SSB,i The conditions are satisfied: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB Where N may be predefined as a fixed value or indicated in PBCH, with a range of values 1,2 1 . Namely, the radio frame where the PDCCH monitoring occasion is located is determined by the radio frame and the time slot where the SSB is located in the assumed nth SSB transmission period in the PDCCH monitoring occasion period.
Example seven: determining PDCCH monitoring opportunity based on index of wireless frame where SSB is located
The present example shows PDCCH monitoring occasion configurations in the second multiplexing mode and the third multiplexing mode.
The time slot n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB . Wherein, T SSB Is a predefined fixed value and represents the transmission period of the SSB assumed by the terminal, or a predefined positive integer.
Using SFN C modT C ＝SFN SSB,i modT SSB Direct replacement of SFN in column 2 of tables 3, 4 and 5 C ＝SFN SSB,i That is, the other PDCCH monitoring timing configurations in tables 3, 4 and 5 are not changed, as shown in tables 6,7 and 8. SSB and SSB applicable to tables 6,7 and 8The PDCCH subcarrier spacing and multiplexing mode are the same as table 3, table 4 and table 5, respectively, in the previous example.
TABLE 6
Figure BDA0001942672420000221
TABLE 7
Figure BDA0001942672420000231
TABLE 8
Figure BDA0001942672420000232
Example eight: directly appointing the index and time slot of the wireless frame where the PDCCH monitoring opportunity is positioned
The present example shows PDCCH monitoring occasion configurations in the second multiplexing mode and the third multiplexing mode.
SFN can also be directly given for pattern2 (second multiplexing mode) and pattern3 (third multiplexing mode) C Such as SFN C modT C ＝0，n C ＝n SSB,i Or n C ＝n SSB,i -1, wherein T C Monitoring the time period for PDCCH in unit of radio frame, T C May be indicated in PBCH or predefined as a fixed value. Using SFN C modT C =0 direct substitution for SFN in column 2 of tables 3, 4 and 5 C ＝SFN SSB,i That is, the other PDCCH monitoring occasion configurations in tables 3, 4 and 5 are not changed, and the applicable SSB and PDCCH subcarrier spacing and multiplexing mode are the same as the previous example.
Example nine: directly appointing the index and time slot of the wireless frame where the PDCCH monitoring opportunity is positioned
The present example shows PDCCH monitoring occasion configurations in the second multiplexing mode and the third multiplexing mode.
SFN can also be directly given for pattern2 (second multiplexing mode) and pattern3 (third multiplexing mode) C Such as SFN C modT C ＝m 5 ，n C ＝n SSB,i Or n C ＝n SSB,i -1, wherein T C Monitoring the time period for PDCCH in unit of radio frame, T C And m 5 Can be indicated or predefined as a fixed value in PBCH, and m 5 Is a non-negative integer. Using SFN C modT C ＝m 5 Direct replacement of SFN in column 2 of tables 3, 4 and 5 C ＝SFN SSB,i That is, the other PDCCH monitoring occasion configurations in table 3, table 4, and table 5 are not changed. The SSB and PDCCH subcarrier spacing and multiplexing mode for tables 3, 4 and 5 are the same as in the previous example.
It is worth noting that in all of the above examples, SFN C And n C Respectively the system frame number and the time slot index of the radio frame where the CORESET is located; SFN SSB,i And n SSB,i Respectively the system frame number and the time slot index of the wireless frame where the SSB with the index of i is located. In addition, the meaning of the parameters in the above examples is merely an example and should not be construed as limiting the scope of the invention, such as T C It may also indicate a default SIB1 repetition transmission period, or a terminal-assumed SIB1 repetition transmission period, or a predefined positive integer.
Example two
In this embodiment, a method for transmitting a control channel is provided, as shown in fig. 3, the method includes:
step 301, a sending end determines sending opportunity of a PDCCH according to at least one of a first parameter, an index of a wireless frame where a synchronization signal block SSB with an index of i is located, time offset and a second parameter; the first parameter is a PDCCH monitoring opportunity period, or a transmission opportunity period of a PDCCH, or a default transmission period of remaining minimum system information SIB1, or a default SIB1 repeated transmission period, or a transmission period of an SIB1 assumed by a receiving end, or a repeated transmission period of an SIB1 assumed by the receiving end, or a predefined positive integer, the time offset is an offset of a starting time slot of a monitored PDCCH corresponding to an SSB with an index of 0 with respect to a radio frame starting boundary where the time slot is located, or an offset of a first monitored time slot in the PDCCH monitoring period with respect to a starting position of the PDCCH monitoring period, and the second parameter is a transmission period of an SSB assumed by the receiving end, or a predefined positive integer.
Step 302, the transmitting end transmits the PDCCH at the determined transmission opportunity of the PDCCH.
In an embodiment, the determining, by the sending end, the sending opportunity of the PDCCH according to at least one of the first parameter, an index of a radio frame where a synchronization signal block SSB with an index of i is located, a time offset, and a second parameter includes:
the sending end determines a time slot n according to at least one of the first parameter, the index of the wireless frame where the synchronization signal block SSB with the index of i is located, the time offset and the second parameter C Or starting time slot n 0 ；
The sending the PDCCH on the determined sending occasion of the PDCCH comprises:
the sending end is in the time slot n C Or in time slots n 0 And sending the PDCCH in K continuous time slots of the starting time slot, wherein K is a positive integer.
In one embodiment, the
Figure BDA0001942672420000251
If it is not
Figure BDA0001942672420000252
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT =0; if it is not
Figure BDA0001942672420000253
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT =1; wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure BDA0001942672420000254
configuring mu per radio for subcarrier spacingAnd the number of time slots of the frame, T, is the first parameter or the second parameter. For example, referring to table 1, it should be noted that table 1 is only an example, and other values may be used as needed.
In one embodiment, the
Figure BDA0001942672420000255
If it is not
Figure BDA0001942672420000256
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT＝m 12 (ii) a If it is not
Figure BDA0001942672420000257
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT＝n 12 (ii) a Wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure BDA0001942672420000258
configuring the number of slots, m, of mu per radio frame for subcarrier spacing 12 And n 12 Is a non-negative integer less than T, and T is the first parameter or the second parameter.
In one embodiment, the n 12 ＝m 12 +1。n 12 ,m 12 The PBCH is a predefined fixed value, or the PBCH is sent to the receiving end by the sending end.
In one embodiment, the
Figure BDA0001942672420000259
If it is not
Figure BDA00019426724200002510
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure BDA00019426724200002511
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, and M is selected by the transmitting end from a preset configuration,
Figure BDA00019426724200002512
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicating the index of the radio frame where the SSB with index i is located.
In one embodiment, the
Figure BDA0001942672420000261
If it is used
Figure BDA0001942672420000262
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 3 (ii) a If it is not
Figure BDA0001942672420000263
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 3 Wherein m is 3 And n 3 Is an integer, O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is selected by the transmitting end from a preset configuration,
Figure BDA0001942672420000264
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicating the index of the radio frame where the SSB with index i is located.
In one embodiment, n is 3 ＝m 3 +1。m 3 And n 3 Is a predefined fixed value or is sent to the receiving end through the PBCH.
In one embodiment, the
Figure BDA0001942672420000265
If O is greater than 0 and
Figure BDA0001942672420000266
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +0；
If O is greater than 0 and
Figure BDA0001942672420000267
or, if O is equal to 0 and
Figure BDA0001942672420000268
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1；
If O is equal to 0 and
Figure BDA0001942672420000269
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2；
Wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure BDA00019426724200002610
SFN for configuring number of slots of mu per radio frame for subcarrier spacing SSB,i Indicating the index of the radio frame where the SSB with index i is located.
In one embodiment, the
Figure BDA00019426724200002611
If O is greater than 0 and
Figure BDA00019426724200002612
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 4 ；
If O is greater than 0 and
Figure BDA00019426724200002613
or, if O is equal to 0 and
Figure BDA00019426724200002614
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 4 ；
If O is equal to 0 and
Figure BDA0001942672420000271
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +k 4 ；
Wherein m is 4 ，n 4 And k 4 Is an integer, O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is selected by the transmitting end from a preset configuration,
Figure BDA0001942672420000272
SFN for configuring number of slots of mu per radio frame for subcarrier spacing SSB,i Indicates the index of the radio frame where the SSB with index i is located.
In one embodiment, n is 4 ＝m 4 +1,k 4 ＝m 4 +2. M is 4 、n 4 And k 4 Is a predefined fixed value or is sent to the receiving end through the PBCH.
In one embodiment, n is C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C ＝SFN SSB,i N is said n SSB,i The SFN is the index of the time slot of the SSB with the index of i SSB,i Indicating the index of the radio frame where the SSB with index i is located.
In an embodiment, the SFN SSB,i Satisfies the following conditions: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB (ii) a Wherein n is less than or equal to
Figure BDA0001942672420000273
A positive integer of (a) to
Figure BDA0001942672420000274
Is a positive integer, said T SSB As the second parameter, the T C Is the first parameter. And the n is a predefined fixed value or is sent to a receiving end through PBCH.
In one embodiment, the
Figure BDA0001942672420000276
The time slot n 0 Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Or SFN C ＝SFN SSB,i +1; wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure BDA0001942672420000277
configuring the number of slots, T, of mu per radio frame for subcarrier spacing C As the first parameter, SFN SSB,i Denotes the index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
In one embodiment, the
Figure BDA0001942672420000278
If it is not
Figure BDA0001942672420000279
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB (ii) a If it is used
Figure BDA00019426724200002710
Then the time slot n 0 Index SF of located radio frameN C Satisfy SFN C modT C ＝SFN SSB,i modT SSB +1, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, and M is selected by the transmitting end from a preset configuration,
Figure BDA0001942672420000281
configuring the number of slots, T, of mu per radio frame for a subcarrier spacing SSB As the second parameter, T C Is the first parameter, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
In one embodiment, n is C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Wherein n is SSB,i Is an index of the time slot in which the SSB with index i is located, T C Is the first parameter, SFN SSB,i Index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
In one embodiment, n is C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝m 5 Wherein m is 5 Is less than T C Is a non-negative integer of n SSB,i Is an index of the time slot in which the SSB with index i is located, T C Is the first parameter.
In one embodiment, the m 5 ＝0。
In one embodiment, the m 5 Is a predefined fixed value or is sent to the receiving end through the PBCH.
It should be noted that, the above parameters may refer to the related description of the terminal side, and are not described herein again.
As shown in fig. 4, an embodiment of the present invention provides a monitoring apparatus 40 for a control channel, including a memory 410 and a processor 420, where the memory 410 stores a program, and when the program is read and executed by the processor 420, the monitoring apparatus implements the monitoring method for a control channel according to any embodiment.
As shown in fig. 5, an embodiment of the present invention provides a computer-readable storage medium 50, where one or more programs 510 are stored, and the one or more programs 510 may be executed by one or more processors to implement the method for monitoring a control channel according to any embodiment.
As shown in fig. 6, an embodiment of the present invention provides a transmitting apparatus 60 for a control channel, which includes a memory 610 and a processor 620, where the memory 610 stores a program, and when the program is read and executed by the processor 620, the program implements the transmitting method for the control channel according to any embodiment.
As shown in fig. 7, an embodiment of the present invention provides a computer-readable storage medium 70, where one or more programs 710 are stored, and the one or more programs 710 may be executed by one or more processors to implement the method for transmitting a control channel according to any embodiment.
In an embodiment, the sending end is in the time slot n C Or in time slots n 0 Sending the PDCCH on K consecutive slots of the starting slot includes: the transmitting end determines the time slot n C Or in time slots n 0 And sending the PDCCH on the CORESET time-frequency resource which is potential CORESET time-frequency resource in the continuous K time slots of the initial time slot.
In an embodiment, the time offset O is sent to the receiving end through PBCH.
In addition, the meaning of the parameters in the above examples is merely an example and should not be construed as limiting the scope of the invention, such as T C It may also indicate a default SIB1 repetition transmission period, or a terminal-assumed SIB1 repetition transmission period, or a predefined positive integer.
It should be noted that the PDCCH in this application refers to the common information or the control channel PDCCH corresponding to SIB 1. The CORESET in the present application refers to common information or a control resource set CORESET corresponding to SIB 1. The common information includes remaining minimum system information RMSI, other system information, a paging message, and the like.
It should be noted that, in the application, for the sending end, the certain parameter is sent to the receiving end through the PBCH, and the sending end is instructed to carry the parameter or the configuration index containing the parameter in the PBCH and then send the PBCH to the receiving end; for the receiving end, the certain parameter is obtained from or provided by the PBCH or indicated in the PBCH, and the like, and the receiving end obtains the parameter carried in the PBCH by receiving and decoding the PBCH, or obtains a configuration index containing the parameter carried in the PBCH, and obtains the parameter by the configuration index.
It will be understood by those of ordinary skill in the art that all or some of the steps of the methods, systems, functional modules/units in the devices disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those of ordinary skill in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Claims (44)

1. A method of monitoring a control channel, comprising:
a receiving end determines monitoring time of a Physical Downlink Control Channel (PDCCH) according to at least one of a first parameter, an index of a wireless frame where a Synchronization Signal Block (SSB) with the index of i is located, a time offset and a second parameter, and monitors the PDCCH at the determined monitoring time of the PDCCH, wherein the first parameter is a PDCCH monitoring time period, or a PDCCH sending time period, or a default sending period of the remaining minimum system information SIB1, or a default SIB1 repeated sending period, or an SIB1 repeated sending period assumed by the receiving end, or a predefined positive integer, the time offset is offset of a starting time slot of the monitored PDCCH corresponding to the SSB with the index of 0 relative to a starting boundary of the wireless frame where the time slot is located, or offset of a first monitoring time slot relative to a starting position of the PDCCH monitoring period in the PDCCH monitoring period, and the second parameter is the SSB sent period assumed by the receiving end, or the predefined positive integer;
the receiving end determines the monitoring opportunity of the PDCCH according to at least one of the first parameter, the index of the wireless frame where the SSB with the index of i is located, the time offset and the second parameter, and the monitoring opportunity comprises the following steps:
determining a time slot n according to at least one of the first parameter, the index of the wireless frame where the SSB with the index i is located, the time offset and the second parameter C Or starting time slot n 0 ；
The monitoring the PDCCH on the determined monitoring occasion of the PDCCH comprises:
in said time slot n C Or in said time slot n 0 Monitoring PDCCH in K time slots of the starting time slot, wherein K is a positive integer.
2. The method of claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000011
If it is not
Figure FDA0003841415520000012
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T =0; if it is used
Figure FDA0003841415520000013
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T =1; wherein O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by a physical broadcast channel PBCH,
Figure FDA0003841415520000014
configuring the number of slots per radio frame for a subcarrier spacing, T being the first parameter or the second parameter.
3. The method according to claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000021
If it is not
Figure FDA0003841415520000022
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T＝m 12 (ii) a If it is used
Figure FDA0003841415520000023
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T＝n 12 (ii) a Wherein O is whenAn inter-offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA0003841415520000024
configuring the number of slots of mu per radio frame for a subcarrier spacing, T being the first parameter or the second parameter, m 12 And n 12 Is a non-negative integer less than T.
4. The method of claim 3, wherein T and m are different 12 And n 12 Either as a predefined fixed value or provided by the PBCH.
5. Method for monitoring a control channel according to claim 3, characterized in that said n 12 ＝m 12 +1。
6. The method of claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000025
If it is used
Figure FDA0003841415520000026
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure FDA0003841415520000027
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA0003841415520000028
SFN for configuring number of slots of mu per radio frame for subcarrier spacing SSB,i Representing an index iIndex of the radio frame where the SSB is located.
7. The method according to claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000029
If it is used
Figure FDA00038414155200000210
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 3 (ii) a If it is not
Figure FDA00038414155200000211
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 3 Wherein O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA00038414155200000212
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Index of the radio frame where the SSB with index i is located, m 3 And n 3 Are integers.
8. The method according to claim 7, wherein m is the number of bits in the received signal 3 And n 3 Either as a predefined fixed value or provided by the PBCH.
9. The method for monitoring a control channel according to claim 7, wherein n is 3 ＝m 3 +1。
10. The method of claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000031
If O is greater than 0 and
Figure FDA0003841415520000032
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i ；
If O is greater than 0 and
Figure FDA0003841415520000033
or, if O is equal to 0 and
Figure FDA0003841415520000034
then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1；
If O is equal to 0 and
Figure FDA0003841415520000035
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2；
Wherein O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA0003841415520000036
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
11. The method of claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000037
If O is greater than 0 and
Figure FDA0003841415520000038
then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 4 ；
If O is greater than 0 and
Figure FDA0003841415520000039
or, if O is equal to 0 and
Figure FDA00038414155200000310
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 4 ；
If O is equal to 0 and
Figure FDA00038414155200000311
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +k 4 ；
Wherein O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA00038414155200000312
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Index m indicating the radio frame in which the SSB with index i is located 4 ，n 4 And k 4 Are integers.
12. The method according to claim 11, wherein m is the number of bits in the received signal 4 、n 4 And k 4 Either as a predefined fixed value or provided by the PBCH.
13. The method of claim 11, wherein n is the number of bits in the received signal 4 ＝m 4 +1,k 4 ＝m 4 +2。
14. According toThe method for monitoring a control channel of claim 1, wherein n is C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C ＝SFN SSB,i N is said n SSB,i The SFN is the index of the time slot of the SSB with the index of i SSB,i Indicates the index of the radio frame where the SSB with index i is located.
15. A method for monitoring a control channel as claimed in any one of claims 6 to 14, wherein a SFN is an SFN SSB,i Satisfies the following conditions: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB (ii) a Wherein n is not more than
Figure FDA0003841415520000041
A positive integer of (a) to
Figure FDA0003841415520000042
Is a positive integer, said T SSB As the second parameter, the T C Is the first parameter.
16. The method of claim 15, wherein n is a predefined fixed value or provided by a PBCH.
17. The method of claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000043
The time slot n 0 Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Or SFN C ＝SFN SSB,i +1; wherein O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA0003841415520000044
configuring the number of slots, T, of mu per radio frame for subcarrier spacing C Is the first parameter, SFN SSB,i Denotes the index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
18. The method according to claim 1, wherein the monitoring is performed in a wireless communication system
Figure FDA0003841415520000045
If it is used
Figure FDA0003841415520000046
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB (ii) a If it is not
Figure FDA0003841415520000047
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB +1, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is provided by PBCH,
Figure FDA0003841415520000048
configuring the number of slots, T, of mu per radio frame for subcarrier spacing C Is said first parameter, T SSB As the second parameter, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
19. The method for monitoring a control channel according to claim 1, wherein n is C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Wherein n is SSB,i Is an index of the time slot in which the SSB with index i is located, T C As the first parameter, SFN SSB,i Denotes the index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
20. The method according to claim 1, wherein n is the number of bits in the received signal C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝m 5 Wherein n is SSB,i Is an index of the time slot in which the SSB with index i is located, T C Is the first parameter, m 5 Is less than T C Is a non-negative integer.
21. The method of claim 20, wherein m is the number of bits in the received signal 5 ＝0。
22. The method according to claim 20, wherein m is the number of bits in the received signal 5 Either as a predefined fixed value or provided by the PBCH.
23. The method for monitoring the control channel according to claim 1, wherein the receiving end is configured to monitor the determined time slot n C Or in time slots n 0 Monitoring the PDCCH for K slots of the starting slot includes: the receiving end determines the time slot n based on at least one of the time slot in which the common control resource set corresponding to the SSB with the common control resource set configuration and index of i is located and the initial symbol index of the common control resource set in the time slot C Or in time slots n 0 Monitoring PDCCH on the determined public control resource set time-frequency resource for the public control resource set time-frequency resource in K time slots of a starting time slot, wherein the public control resource set configuration and the starting symbol index of the public control resource set in the time slot are provided by PBCH, and the index is a public control resource set corresponding to SSB of iThe time slot where the receiver is located is calculated by the receiving end according to the parameters provided by the PBCH or provided by the PBCH.
24. A method for transmitting a control channel, comprising:
a sending end determines the sending time of a PDCCH according to at least one of a first parameter, an index of a wireless frame where a synchronization signal block SSB with the index of i is located, a time offset and a second parameter, and sends the PDCCH on the determined sending time of the PDCCH, wherein the first parameter is a PDCCH monitoring time period, or the sending time period of the PDCCH, or a default sending period of the remaining minimum system information SIB1, or a default SIB1 repeated sending period, or a sending period of SIB1 assumed by a receiving end, or a predefined positive integer, the time offset is the offset of a starting wireless frame of the monitored PDCCH corresponding to the SSB with the index of 0 relative to a starting boundary where the time slot is located, or the offset of a first monitoring time slot in the PDCCH monitoring period relative to a starting position of the PDCCH monitoring period, and the second parameter is the sending period of the SSB assumed by the receiving end, or the predefined positive integer;
the sending end determines the sending opportunity of the PDCCH according to at least one of the first parameter, the index of the wireless frame where the synchronization signal block SSB with the index of i is located, the time offset and the second parameter, and comprises the following steps:
the sending end determines a time slot n according to at least one of the first parameter, the index of the wireless frame where the synchronous signal block SSB with the index of i is located, the time offset and the second parameter C Or starting time slot n 0 ；
The transmitting the PDCCH on the determined transmission occasion of the PDCCH includes:
the sending end is in the time slot n C Or in time slots n 0 And sending the PDCCH in K time slots of the starting time slot, wherein K is a positive integer.
25. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA0003841415520000061
If it is not
Figure FDA0003841415520000062
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T =0; if it is not
Figure FDA0003841415520000063
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T =1; wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure FDA0003841415520000064
configuring the number of slots per radio frame for a subcarrier spacing, T being the first parameter or the second parameter.
26. The method for transmitting control channel according to claim 24, wherein the transmitting step is further performed by using a dedicated channel
Figure FDA0003841415520000065
If it is used
Figure FDA0003841415520000066
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T＝m 12 (ii) a If it is not
Figure FDA0003841415520000067
Then time slot n 0 Index SFN of located radio frame C Satisfy SFN C mod T＝n 12 (ii) a Wherein O is the time offset, mu is the subcarrier spacing configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure FDA0003841415520000068
configuring the number of slots, m, of mu per radio frame for subcarrier spacing 12 And n 12 Is a non-negative integer less than T, where T is the first parameter or the second parameter.
27. The method of claim 26, wherein n is the same as n 12 ＝m 12 +1。
28. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA0003841415520000069
If it is used
Figure FDA00038414155200000610
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1; if it is not
Figure FDA00038414155200000611
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, and M is selected by the transmitting end from a preset configuration,
Figure FDA0003841415520000071
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
29. The method for transmitting control channel according to claim 24, wherein the transmitting step is further performed by using a dedicated channel
Figure FDA0003841415520000072
If it is used
Figure FDA0003841415520000073
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 3 (ii) a If it is not
Figure FDA0003841415520000074
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +n 3 Wherein m is 3 And n 3 Is an integer, O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is selected by the transmitting end from a preset configuration,
Figure FDA0003841415520000075
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
30. The method of claim 29, wherein n is the same as n 3 ＝m 3 +1。
31. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA0003841415520000076
If O is greater than 0 and
Figure FDA0003841415520000077
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i ；
If O is greater than 0 and
Figure FDA0003841415520000078
or, if O is equal to 0 and
Figure FDA0003841415520000079
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +1；
If O is equal to 0 and
Figure FDA00038414155200000710
then time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +2；
Wherein O is the time offset, mu is the subcarrier interval configuration of the common control resource set, M is selected from the preset configuration by the transmitting end,
Figure FDA00038414155200000711
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
32. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA00038414155200000712
If O is greater than 0 and
Figure FDA00038414155200000713
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +m 4 ；
If O is greater than 0 and
Figure FDA0003841415520000081
or, if O is equal to 0 and
Figure FDA0003841415520000082
then the time slot n 0 Located wireless frameIndex SFN C Satisfy SFN C ＝SFN SSB,i +n 4 ；
If O is equal to 0 and
Figure FDA0003841415520000083
then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C ＝SFN SSB,i +k 4 ；
Wherein m is 4 ，n 4 And k 4 Is an integer, O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, M is selected by the transmitting end from a preset configuration,
Figure FDA0003841415520000084
configuring number of slots of mu per radio frame for subcarrier spacing, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
33. The method for transmitting control channel according to claim 32, wherein n is the same as n 4 ＝m 4 +1,k 4 ＝m 4 +2。
34. The method of claim 24, wherein n is the same as n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C ＝SFN SSB,i N is said n SSB,i The index is the index of the time slot of the SSB with the index of i, the SFN SSB,i Indicating the index of the radio frame where the SSB with index i is located.
35. A method for transmitting a control channel as claimed in any one of claims 28 to 34, wherein a SFN is used for the SFN SSB,i Satisfies the following conditions: (n-1). T SSB ≤SFN SSB,i modT C ＜n·T SSB (ii) a Wherein n is not more than
Figure FDA0003841415520000085
A positive integer of (A), said
Figure FDA0003841415520000086
Is a positive integer, said T SSB As the second parameter, the T C Is the first parameter.
36. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA0003841415520000087
The time slot n 0 Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Or SFN C ＝SFN SSB,i +1; wherein, O is the time offset, mu is the subcarrier interval configuration of the common control resource set, M is sent to the receiving end by PBCH,
Figure FDA0003841415520000088
configuring the number of slots, T, of mu per radio frame for subcarrier spacing C Is the first parameter, SFN SSB,i Denotes the index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
37. The method of claim 24, wherein the control channel is transmitted according to a predetermined time period
Figure FDA0003841415520000091
If it is not
Figure FDA0003841415520000092
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB (ii) a If it is not
Figure FDA0003841415520000093
Then the time slot n 0 Index SFN of located radio frame C Satisfy SFN C modT C ＝SFN SSB,i modT SSB +1, where O is the time offset, μ is a subcarrier spacing configuration of a common control resource set, and M is selected by the transmitting end from a preset configuration,
Figure FDA0003841415520000094
configuring the number of slots, T, of mu per radio frame for subcarrier spacing SSB Is said second parameter, T C Is the first parameter, SFN SSB,i Indicates the index of the radio frame where the SSB with index i is located.
38. The method for transmitting control channel according to claim 24, wherein n is the index n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝SFN SSB,i modT SSB Wherein n is SSB,i Is an index of the time slot in which the SSB with index i is located, T C Is the first parameter, SFN SSB,i Denotes the index, T, of the radio frame in which the SSB with index i is located SSB Is the second parameter.
39. The method of claim 24, wherein n is the same as n C ＝n SSB,i Or n C ＝n SSB,i -1, said time slot n C Index SFN of located radio frame C Satisfies the following conditions: SFN C modT C ＝m 5 Wherein m is 5 Is less than T C Is a non-negative integer of n SSB,i Is an index of the time slot in which the SSB with index i is located, T C Is the first parameter.
40. The method of claim 39, wherein m is the same as m 5 ＝0。
41. A monitoring apparatus for a control channel, comprising a memory and a processor, wherein the memory stores a program, and the program, when read and executed by the processor, implements the monitoring method for a control channel according to any one of claims 1 to 23.
42. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the method for monitoring the control channel according to any one of claims 1 to 23.
43. A transmission apparatus for a control channel, comprising a memory and a processor, wherein the memory stores a program, and the program when read and executed by the processor implements the transmission method for a control channel according to any one of claims 24 to 40.
44. A computer-readable storage medium storing one or more programs, the one or more programs being executable by one or more processors to implement the method of controlling channel transmission according to any one of claims 24 to 40.
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