CN115379436A - Control channel monitoring method and device - Google Patents

Control channel monitoring method and device Download PDF

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Publication number
CN115379436A
CN115379436A CN202110541070.8A CN202110541070A CN115379436A CN 115379436 A CN115379436 A CN 115379436A CN 202110541070 A CN202110541070 A CN 202110541070A CN 115379436 A CN115379436 A CN 115379436A
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China
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control channel
scheduling
scs
cell
channel resource
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CN202110541070.8A
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Chinese (zh)
Inventor
李�根
纪子超
刘思綦
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Priority to CN202110541070.8A priority Critical patent/CN115379436A/en
Priority to PCT/CN2022/092658 priority patent/WO2022242557A1/en
Publication of CN115379436A publication Critical patent/CN115379436A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/22Processing or transfer of terminal data, e.g. status or physical capabilities

Abstract

The embodiment of the application discloses a method and equipment for monitoring a control channel, and belongs to the technical field of communication. The control channel monitoring method of the embodiment of the application comprises the following steps: the terminal determines the monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.

Description

Control channel monitoring method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a method and a device for monitoring a control channel.
Background
A fifth generation (5G) communication system supports configuring one or more cells (or carriers) for a terminal, and if the channel quality of some cells is not good enough or the channel blocking probability is high, a network side device may configure cross-carrier scheduling for the terminal, that is, configure a control channel in another cell (e.g., a primary cell, PCell) with good channel quality to cross-carrier schedule data of another cell (e.g., a secondary cell, SCell).
The scheduling cell may be in self-scheduling mode, where the cell only schedules itself. The scheduling cell may also schedule one or more other scheduled cells than itself if it is configured with cross-carrier scheduling. The scheduled cell has no control channel of its own, and can be scheduled by only one scheduling cell.
In the related art, one cell can be scheduled by only one scheduling cell (i.e., can be scheduled only by self-scheduling or by another cell), and the primary cell can be scheduled only by the primary cell itself. However, due to the limited control channel resources of the scheduling cell, scheduling congestion on the scheduling cell is easily caused.
Disclosure of Invention
The embodiment of the application provides a method and equipment for monitoring a control channel, which can solve the problems that the control channel resource of a scheduling cell is limited and scheduling blockage is easily caused.
In a first aspect, a control channel monitoring method is provided, including: the terminal determines the monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In a second aspect, a control channel monitoring method is provided, including: the network side equipment determines the monitoring capability of the terminal on the control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; the schedule time indication is defined.
In a third aspect, a control channel monitoring apparatus is provided, including: a first determining module, configured to determine monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells; a second determining module, configured to determine, according to the monitoring capability, at least one of the following associated with the control channel: processing time; scheduling restrictions; a schedule time indication definition.
In a fourth aspect, a control channel monitoring device is provided, which includes: the first determining module is used for determining the monitoring capability of the terminal on the control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; a second determining module, configured to determine, according to the monitoring capability, at least one of the following related to the control channel: processing time; scheduling restrictions; a schedule time indication definition.
In a fifth aspect, there is provided a terminal comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, which when executed by the processor, implement the method according to the first aspect.
In a sixth aspect, a terminal is provided, which includes a processor and a communication interface, where the processor is configured to determine a monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In a seventh aspect, a network-side device is provided, which includes a processor, a memory, and a program or an instruction stored on the memory and executable on the processor, and when executed by the processor, the program or the instruction implements the method according to the second aspect.
In an eighth aspect, a network side device is provided, which includes a processor and a communication interface, where the processor is configured to determine a monitoring capability of a terminal on a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In a ninth aspect, there is provided a readable storage medium on which is stored a program or instructions which, when executed by a processor, carries out the method of the first aspect or the method of the second aspect.
In a tenth aspect, a chip is provided, the chip comprising a processor and a communication interface, the communication interface being coupled to the processor, the processor being configured to execute a program or instructions to implement the method according to the first aspect, or to implement the method according to the second aspect.
In an eleventh aspect, there is provided a computer program/program product stored on a non-transitory storage medium, the program/program product being executable by at least one processor to implement a method as described in the first aspect, or to implement a method as described in the second aspect.
In the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, the terminal can also determine the processing time, scheduling limitation, scheduling time indication definition and the like related to the control channel according to the determined monitoring capability, and the complexity of terminal implementation is favorably reduced.
Drawings
Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the present application;
FIG. 2 is a schematic flow chart diagram of a control channel monitoring method according to an embodiment of the application;
FIG. 3 is a schematic diagram illustrating control channel resource limitation in a control channel monitoring method according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating control channel resource limitation in a control channel monitoring method according to an embodiment of the present application;
FIG. 5 is a schematic flow chart diagram of a control channel monitoring method according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a control channel monitoring device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a control channel monitoring device according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a communication device according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a network-side device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments that can be derived from the embodiments given herein by a person of ordinary skill in the art are intended to be within the scope of the present disclosure.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in other sequences than those illustrated or otherwise described herein, and that the terms "first" and "second" used herein generally refer to a class and do not limit the number of objects, for example, a first object can be one or more. In addition, "and/or" in the specification and the claims means at least one of connected objects, and a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
It is noted that the techniques described in the embodiments of the present application are not limited to Long Term Evolution (LTE)/LTE Evolution (LTE-Advanced) systems, but may also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), time Division Multiple Access (TDMA), frequency Division Multiple Access (FDMA), orthogonal Frequency Division Multiple Access (OFDMA), single-carrier Frequency-Division Multiple Access (SC-FDMA), and other systems. The terms "system" and "network" are often used interchangeably in embodiments of the present application, and the described techniques may be used for both the above-mentioned systems and radio technologies, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for purposes of example, and the NR terminology is used in much of the description below, and the techniques are also applicableApplications other than NR systems, e.g. 6 th generation (6) th Generation, 6G) communication system.
Fig. 1 shows a schematic diagram of a wireless communication system to which embodiments of the present application are applicable. The wireless communication system includes a terminal 11 and a network-side device 12. Wherein, the terminal 11 may also be called a terminal Device or a User Equipment (UE), the terminal 11 may be a Mobile phone, a Tablet Computer (Tablet Computer), a Laptop Computer (Laptop Computer) or a notebook Computer, a Personal Digital Assistant (PDA), a palmtop Computer, a netbook, a super-Mobile Personal Computer (UMPC), a Mobile Internet Device (MID), a Wearable Device (Wearable Device) or a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), and other terminal side devices, the Wearable Device includes: smart watches, bracelets, earphones, glasses, and the like. It should be noted that the embodiment of the present application does not limit the specific type of the terminal 11. The network-side device 12 may be a Base Station or a core network, wherein the Base Station may be referred to as a node B, an evolved node B, an access Point, a Base Transceiver Station (BTS), a radio Base Station, a radio Transceiver, a Basic Service Set (BSS), an Extended Service Set (ESS), a node B, an evolved node B (eNB), a next generation node B (gNB), a home node B, a home evolved node B (hbo), a WLAN access Point, a WiFi node, a Transmission Receiving Point (TRP), or some other suitable term in the field, as long as the same technical effect is achieved, the Base Station is not limited to a specific technical vocabulary, and it should be noted that, in the embodiment of the present application, only the Base Station in the NR system is taken as an example, but the specific type of the Base Station is not limited.
The following describes a control channel monitoring method and device provided in the embodiments of the present application in detail through some embodiments and application scenarios thereof with reference to the accompanying drawings.
As shown in fig. 2, the present embodiment provides a control channel monitoring method 200, which may be performed by a terminal, in other words, by software or hardware installed in the terminal, and includes the following steps.
S202: the terminal determines the monitoring capability of a control channel; the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells.
The Control Channel mentioned in the embodiments of the present application may be a Physical Downlink Control Channel (PDCCH), and the PDCCH is often used as an example in the following embodiments to describe the Control Channel.
The monitoring capability of the control channel is generally used to indicate the capability of the terminal for monitoring the control channel, and includes: scheduling a total blind-check control channel resource limit on the reference SCS based time domain unit for a plurality of scheduling cells of the first cell, scheduling a blind-check control channel resource limit on the reference SCS based time domain unit for at least one scheduling cell of the first cell, and so on.
In this step, the terminal may determine the monitoring capability of the control channel according to a predefined rule (e.g., protocol agreement); and determining the monitoring capability of the control channel according to the parameters configured by the network side equipment.
For example, the terminal supports multiple monitoring capabilities, and the terminal selects one monitoring capability according to a predefined rule; for another example, the terminal reports various monitoring capabilities supported by the terminal to the network side device, the network side device may configure scheduling parameters and the like for the terminal, and the terminal may obtain the monitoring capability currently used for monitoring the PDCCH according to the scheduling parameters and the like.
The control channel is used for scheduling a first cell, where the first cell may be a cell for transmitting a data channel for a terminal, and the first cell may be scheduled by at least two scheduling cells, that is, the control channel may belong to at least two scheduling cells.
Subsequent embodiments may refer to all cells capable of invoking the first cell as the first scheduling cell group. In one example, the first cell is a primary cell (Pcell), the first scheduling cell group includes the Pcell and a secondary cell (Scell), and the Scell capable of scheduling the Pcell may be denoted by S-Scell in the following examples.
S204: determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In this embodiment, the network side device may configure a correspondence between the monitoring capability and the processing time, the scheduling restriction, the scheduling time indication definition, and the like; or the protocol appoints the corresponding relation between the monitoring capability and the processing time, the scheduling limitation, the scheduling time indication definition and the like. Thus, the terminal can determine at least one of the following related to the control channel according to the determined monitoring capability: processing time; scheduling restrictions; the schedule time indication is defined.
Optionally, the processing time (or processing duration, and the following similar terms) may include at least one of the following 1) to 6):
1) A processing time of the control channel. For example, the demodulation time of the PDCCH.
2) And the processing time of the downlink data channel scheduled by the control channel. For example, the processing time of a Physical Downlink Shared Channel (PDSCH) scheduled by the PDCCH.
3) And the preparation time of the uplink data channel scheduled by the control channel. For example, preparation time of Physical Uplink Shared Channel (PUSCH) scheduled by PDCCH.
4) And calculating or reporting time of Channel State Information (CSI) scheduled by the control Channel. For example, the transmission of an aperiodic Channel State Information-Reference Signal (a-CSI-RS) scheduled by a PDCCH, and the calculation or reporting time of the CSI corresponding to the a-CSI-RS.
5) A preparation or reception time of the A-CSI-RS scheduled by the control channel. E.g., preparation or reception time of a-CSI-RS scheduled by PDCCH.
6) The control channel schedules a preparation or transmission time of an aperiodic-Sounding Reference Signal (A-SRS). E.g., preparation or transmission time of PDCCH scheduled a-SRS.
In this embodiment, considering that the first cell can be scheduled by at least two scheduling cells, that is, the terminal may need to monitor the control channels of at least two scheduling cells, and therefore, the monitoring capability of the control channels may be redefined, the processing time may be relaxed appropriately to reduce the complexity of the terminal implementation. For example, the processing times may be respectively greater than a target time, and the target time may be respectively corresponding times when the terminal monitors a control channel of a scheduling cell in the related art, thereby being beneficial to reducing complexity of implementation of the terminal.
In this embodiment, considering that the first cell can be scheduled by at least two scheduling cells, the SubCarrier Spacing (SCS) of the at least two scheduling cells may be different, and therefore, the granularity of the processing time may be determined according to a reference SCS, which will be described in the following embodiments, for example, how many symbols, how many slots, and so on under the reference SCS.
Alternatively, the scheduling restriction may include at least one of the following 1) and 2).
1) In the case that the first cell is self-scheduled, there is a first limit on a time interval between a first time point including a time point occupied by the control channel and a second time point including a time point occupied by a resource scheduled by the control channel. The first limit includes, for example: the time interval between the first time point and the second time point is not less than the first value.
2) And when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit. The second limit includes, for example: : the time interval between the first time point and the second time point is not less than a second value, which may be the first value + the offset value.
Optionally, the definition of the schedule time indication includes one of 1) and 2) as follows.
1) The time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value or a value configured by the network side equipment; k0 is the time interval between the control channel and the downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is a time interval between the control channel and an uplink data channel scheduled by the control channel.
2) The time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by the network side device.
In this example, the start time of K0/K2 is defined not by the last symbol of the PDCCH but by the slot end position of the scheduling cell with the smallest SCS among the two scheduling cells. The time slot may be a time slot corresponding to the transmission time of the PDCCH on the scheduling cell with the minimum SCS, and the definition of K0/K2 may be referred to as introduction in 1) above.
Optionally, after the determining the monitoring capability of the control channel in S202 (e.g., after S204), the method further includes: and the terminal monitors the control channel according to the monitoring capability.
According to the control channel monitoring method provided by the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, the terminal can also determine the processing time, scheduling limit, scheduling time indication definition and the like related to the control channel according to the determined monitoring capability, and the complexity of terminal implementation is favorably reduced.
Optionally, the at least two scheduling cells mentioned in embodiment 200 belong to a first scheduling cell group, and the determining the monitoring capability of the control channel mentioned in S202 includes: determining a monitoring capability of the control channel based on at least one of the following a) to d):
a) A first control channel resource restriction of a cell of a second scheduling cell group, the first control channel resource restriction comprising an overall control channel resource restriction per time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group.
It should be noted that, the time domain units mentioned in the embodiments of the present application may be slots, symbols, durations (spans), and the like.
The control channel resource limitation mentioned in the embodiments of the present application may include the maximum number of PDCCH candidates that are blindly detected in one time domain unit; the maximum number of Channel estimates required for the terminal to perform blind detection, i.e., the number of non-overlapping Control Channel Elements (CCEs), etc.
b) A second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS.
c) A third control channel resource limitation for at least one cell of the first scheduling cell group, the third control channel resource limitation comprising a control channel resource limitation for each time domain unit based on (respective) SCS of the at least one cell. For example, at least one cell of the first scheduling cell group is based on per slot/per duration (per slot/per span) control channel resource restriction of its SCS.
d) A time domain unit structure based on the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
The above-mentioned control channel resource limitation can be referred to the following description of the embodiments shown in fig. 3 and fig. 4.
The reference SCS referred to in the various examples above includes one of: a maximum SCS of the first scheduling cell group; a minimum SCS of the first scheduling cell group; maximum SCS of the second scheduling cell group; a minimum SCS of the second scheduling cell group; SCS configured by the network side equipment; predefined SCS, e.g., a protocol-agreed SCS.
The first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction mentioned in the above respective examples are obtained by at least one of the following 1) to 5):
1) The control channel resource limit of each time domain unit of the reference SCS is multiplied by a first coefficient. For example, for the above a), the first Control channel Resource limitation is obtained by multiplying the per slot Control channel Resource limitation of the reference SCS by a coefficient alpha, where the coefficient alpha may be predefined, reported by the terminal, or configured by Radio Resource Control (RRC). For another example, for b) above, the second control channel resource restriction is obtained by multiplying the per slot control channel resource restriction of the reference SCS by a coefficient beta, which may be predefined, reported by the terminal, or configured by the RRC.
2) The control channel resource limit of each time domain unit of the SCS of the at least one cell is multiplied by a second coefficient. For example, for c) above, the third control channel resource limit is obtained based on the per slot control channel resource limit of the SCS of the cell multiplied by a coefficient gama, which may be predefined, reported by the terminal, or RRC configured.
Optionally, the second coefficients in at least two time domain units are different. For example, the second coefficient values for different slots of the N slots may be different.
3) The value reported by the terminal.
4) A predefined value.
5) A value configured by the network side device.
Optionally, the monitoring capability mentioned in the previous embodiments is related to at least one of the following.
1) Whether a scheduling cell in which the control channel is located contains control channel resource restrictions spanning multiple time domain units. For example, whether the scheduling cell in which the PDCCH is located includes control channel resource restrictions spanning multiple slots.
2) Whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS or not; for example, whether the SCS of the scheduling cell in which the PDCCH is located is different (larger or smaller) from the reference SCS that controls the channel resource restriction.
3) The control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition. For example, the scheduling cell where the PDCCH is located controls the resource restriction to satisfy the first condition based on the per slot of its SCS. The first condition includes, for example: the value of the control channel resource restriction is less than or equal to a certain value, and so on.
To explain the control channel monitoring method provided in the embodiments of the present application in detail, the following description will be made with reference to two specific embodiments.
Example one
In this embodiment, the first cell is a Pcell, the first scheduling cell group includes a Pcell and an S-Scell, i.e., the Pcell may be scheduled by the Pcell and another Scell, and the Pcell and the S-Scell may have the same or different SCS.
Example a, pcell and S-Scell each have independent control channel resource restrictions, as shown in fig. 3. In the example shown in fig. 3, Z1s corresponds to the control channel resource restriction of b) in the above scheme, and Z1p and Z1s' correspond to the control channel resource restriction of c) in the above scheme.
In the examples shown in fig. 3 and 4, the width of each square in the lateral direction represents one slot, the filled squares in the squares represent PDCCH, and the numbers in the squares represent the values of the control channel resource limitations. In addition, in the fourth slot, the upper square filled with the orthogonal line represents the Common Search Space (CSS), and the lower square filled with the diagonal line represents the user-Specific Search Space (USS)
Example B, pcell and S-Scell have total control channel resource limitations, as shown in fig. 4. In the example shown in fig. 4, Z2 corresponds to the total control channel resource limitation of a) in the above scheme, and Z2s corresponds to the control channel resource limitation of c) in the above scheme.
Example two
In the example shown in fig. 3 and 4, when the SCS (30 KHz) of the S-Scell and the reference SCS (15 KHz, which is the SCS of the primary cell) are not the same for the limit Z1S or Z2 on the S-Scell in case 2, the limit Z1S on the S-Scell is a total limit for 2 slots, so it may happen that all control channel resources are concentrated on one slot, e.g., (24, 0) in the lower right corner of fig. 3.
In this case, the terminal may need more time to process the control channel resource on one slot, i.e. the processing time (e.g. the processing time of PDCCH or PDSCH) needs to add extra time, e.g. the processing time of normal PDCCH or PDSCH + deta.
Optionally, when the SCS (30 KHz) of the S-Scell is different from the SCS (15 KHz) referred to for control channel resource limitation, the minimum K0/K1/K2 of PDCCH scheduling is limited.
Optionally, when the SCS (30 KHz) of the S-Scell and the SCS (15 KHz) referred to by the control channel resource restriction are different, the time point of the resource scheduled by the PDCCH is adjusted as: n1+ K0/K1/K2+ deta1.
Optionally, when the SCS (30 KHz) of the S-Scell is not the same as the SCS (15 KHz) referred to by the control channel resource restriction, the time point of the resource scheduled by the PDCCH is: n2+ deta2; wherein n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by the network side device.
The control channel monitoring method according to the embodiment of the present application is described in detail above with reference to fig. 2 to 4. A control channel monitoring method according to another embodiment of the present application will be described in detail below with reference to fig. 5. It is to be understood that the interaction between the network-side device and the terminal described from the network-side device is the same as that described at the terminal side in the method shown in fig. 2, and the related description is appropriately omitted to avoid redundancy.
Fig. 5 is a schematic flow chart of an implementation of a control channel monitoring method according to an embodiment of the present application, which may be applied to a network side device. As shown in fig. 5, the method 500 includes the following steps.
S502: the network side equipment determines the monitoring capability of the terminal on the control channel; the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells.
S504: determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, the network side equipment can also determine the processing time, scheduling limit, scheduling time indication definition and the like related to the control channel according to the determined monitoring capability, and the complexity of terminal implementation is favorably reduced.
Optionally, as an embodiment, the at least two scheduling cells belong to a first scheduling cell group, and the determining the monitoring capability of the terminal on the control channel includes: determining the monitoring capability of the terminal on the control channel according to at least one of the following 1) to 4).
1) A first control channel resource restriction of a cell of a second scheduling cell group, the first control channel resource restriction comprising an overall control channel resource restriction per time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group.
2) A second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS.
3) A third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell.
4) Based on the time domain unit structure of the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
Optionally, as an embodiment, the reference SCS includes one of: maximum SCS of the first scheduling cell group; a minimum SCS of the first scheduling cell group; maximum SCS of the second scheduling cell group; a minimum SCS of the second scheduling cell group; SCS configured by the network side equipment; a predefined SCS.
Optionally, as an embodiment, the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are obtained by at least one of the following 1) to 5).
1) The control channel resource limit of each time domain unit of the reference SCS is multiplied by a first coefficient.
2) The control channel resource limit of each time domain unit of the SCS of the at least one cell is multiplied by a second coefficient.
3) The value reported by the terminal.
4) A predefined value.
5) A value configured by the network side device.
Optionally, as an embodiment, the second coefficients in at least two time domain units are different.
Optionally, as an embodiment, the monitoring capability is associated with at least one of the following 1) to 3).
1) Whether a scheduling cell in which the control channel is located contains control channel resource restrictions spanning multiple time domain units.
2) Whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS.
3) The control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
Optionally, as an embodiment, the granularity of the processing time is determined according to a reference SCS.
Optionally, as an embodiment, the processing time includes at least one of the following 1) to 6).
1) A processing time of the control channel.
2) And the processing time of the downlink data channel scheduled by the control channel.
3) And the preparation time of the uplink data channel scheduled by the control channel.
4) And calculating or reporting the CSI scheduled by the control channel.
5) A preparation or reception time of the A-CSI-RS scheduled by the control channel;
6) The control channel scheduled preparation or transmission time of the A-SRS.
Optionally, as an embodiment, the scheduling restriction includes at least one of the following 1) to 2).
1) In a case where the first cell is self-scheduled, there is a first restriction on a time interval between a first time point and a second time point, the first time point including a time point occupied by the control channel, and the second time point including a time point occupied by a resource scheduled by the control channel.
2) And when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit.
Optionally, as an embodiment, the definition of the schedule time indication includes one of the following 1) and 2):
1) The time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value, or a value configured by the network side device. K0 is a time interval between the control channel and a downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is the time interval between the control channel and the uplink data channel scheduled by the control channel.
2) The time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by the network side device.
Optionally, as an embodiment, after determining the capability of the terminal to monitor the control channel, the method further includes: and sending the control channel according to the monitoring capability.
It should be noted that, in the control channel monitoring method provided in the embodiment of the present application, the execution main body may be a control channel monitoring device, or a control module in the control channel monitoring device for executing the control channel monitoring method. In the embodiment of the present application, a control channel monitoring device is taken as an example to execute a control channel monitoring method, and the control channel monitoring device provided in the embodiment of the present application is described.
Fig. 6 is a schematic structural diagram of a control channel monitoring apparatus according to an embodiment of the present application, and the apparatus may correspond to a terminal in another embodiment. As shown in fig. 6, the apparatus 600 includes the following modules.
A first determining module 602, configured to determine monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells.
A second determining module 604, configured to determine at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, processing time, scheduling limitation, scheduling time indication definition and the like related to the control channel can be determined according to the determined monitoring capability, and the complexity of terminal implementation is reduced.
Optionally, as an embodiment, the at least two scheduling cells belong to a first scheduling cell group, and the first determining module 602 is configured to: determining monitoring capability of the control channel according to at least one of the following 1) to 4).
1) A first control channel resource restriction of cells of a second scheduling cell group, the first control channel resource restriction comprising an overall control channel resource restriction of each time domain unit based on a reference subcarrier spacing, SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group.
2) A second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS.
3) A third control channel resource limitation for at least one cell of the first scheduling cell group, the third control channel resource limitation comprising a control channel resource limitation based on each time domain unit of the SCS of the at least one cell.
4) A time domain unit structure based on the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
Optionally, as an embodiment, the reference SCS includes one of: maximum SCS of the first scheduling cell group; a minimum SCS of the first scheduling cell group; maximum SCS of the second scheduling cell group; a minimum SCS of the second scheduling cell group; SCS configured by the network side equipment; a predefined SCS.
Optionally, as an embodiment, the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are obtained by at least one of the following 1) to 5).
1) The control channel resource limit of each time domain unit of the reference SCS is multiplied by a first coefficient.
2) The control channel resource limit for each time domain unit of the SCS of the at least one cell is multiplied by a second coefficient.
3) The value reported by the terminal.
4) A predefined value.
5) A value configured by the network side device.
Optionally, as an embodiment, the second coefficients in at least two time domain units are different.
Optionally, as an embodiment, the monitoring capability is associated with at least one of the following 1) to 3).
1) Whether a scheduling cell in which the control channel is located contains control channel resource restrictions spanning multiple time domain units.
2) Whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS.
3) The control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
Optionally, as an embodiment, the granularity of the processing time is determined according to a reference SCS.
Optionally, as an embodiment, the processing time includes at least one of the following 1) to 6).
1) A processing time of the control channel.
2) And the processing time of the downlink data channel scheduled by the control channel.
3) And the preparation time of the uplink data channel scheduled by the control channel.
4) And calculating or reporting the CSI scheduled by the control channel.
5) A preparation or reception time of the A-CSI-RS scheduled by the control channel;
6) The control channel scheduling preparation or transmission time of the A-SRS.
Optionally, as an embodiment, the scheduling restriction includes at least one of the following 1) to 2).
1) In the case that the first cell is self-scheduled, there is a first limit on a time interval between a first time point including a time point occupied by the control channel and a second time point including a time point occupied by a resource scheduled by the control channel.
2) And when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit.
Optionally, as an embodiment, the definition of the schedule time indication includes one of the following 1) and 2).
1) The time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value, or a value configured by the network side device. Wherein, K0 is a time interval between the control channel and a downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is the time interval between the control channel and the uplink data channel scheduled by the control channel.
2) The time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by the network side device.
Optionally, as an embodiment, after determining the monitoring capability of the control channel, the apparatus further includes: and the monitoring module is used for monitoring the control channel according to the monitoring capability.
The apparatus 600 according to the embodiment of the present application may refer to the flow corresponding to the method 200 of the embodiment of the present application, and each unit/module and the other operations and/or functions in the apparatus 600 are respectively for realizing the corresponding flow in the method 200 and achieving the same or equivalent technical effects, and for brevity, are not described again here.
The control channel monitoring device in the embodiment of the present application may be a device, a device or an electronic device having an operating system, or may be a component, an integrated circuit, or a chip in a terminal. The device or the electronic equipment can be a mobile terminal or a non-mobile terminal. For example, the mobile terminal may include, but is not limited to, the above-listed type of terminal 11, and the non-mobile terminal may be a server, a Network Attached Storage (NAS), a Personal Computer (PC), a Television (TV), a teller machine, a kiosk, or the like, and the embodiments of the present application are not limited in particular.
The control channel monitoring device provided in the embodiment of the present application can implement each process implemented by the method embodiments of fig. 2 to fig. 5, and achieve the same technical effect, and is not described herein again to avoid repetition.
Fig. 7 is a schematic structural diagram of a control channel monitoring apparatus according to an embodiment of the present application, where the apparatus may correspond to a network side device in other embodiments. As shown in fig. 7, the apparatus 700 includes the following modules.
A first determining module 702, configured to determine a monitoring capability of a terminal on a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells.
A second determining module 704, configured to determine at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; the schedule time indication is defined.
In the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, the terminal can also determine the processing time, scheduling limitation, scheduling time indication definition and the like related to the control channel according to the determined monitoring capability, and the complexity of terminal implementation is favorably reduced.
Optionally, as an embodiment, the at least two scheduling cells belong to a first scheduling cell group, and the first determining module 702 is configured to: determining the monitoring capability of the terminal on the control channel according to at least one of the following 1) to 4).
1) A first control channel resource limitation for cells of a second scheduling cell group, the first control channel resource limitation comprising a total control channel resource limitation for each time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group.
2) A second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS.
3) A third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell.
4) Based on the time domain unit structure of the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
Optionally, as an embodiment, the reference SCS includes one of: maximum SCS of the first scheduling cell group; a minimum SCS of the first scheduling cell group; maximum SCS of the second scheduling cell group; a minimum SCS of the second scheduling cell group; SCS configured by the network side equipment; a predefined SCS.
Optionally, as an embodiment, the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are obtained by at least one of the following 1) to 5).
1) The control channel resource limit of each time domain unit of the reference SCS is multiplied by a first coefficient.
2) The control channel resource limit of each time domain unit of the SCS of the at least one cell is multiplied by a second coefficient.
3) The value reported by the terminal.
4) A predefined value.
5) A value configured by the network side device.
Optionally, as an embodiment, the second coefficients in at least two time domain units are different.
Optionally, as an embodiment, the monitoring capability is associated with at least one of the following 1) to 3).
1) Whether a scheduling cell where the control channel is located contains control channel resource restrictions spanning multiple time domain units.
2) Whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS.
3) The control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
Optionally, as an embodiment, the granularity of the processing time is determined according to a reference SCS.
Optionally, as an embodiment, the processing time includes at least one of the following 1) to 6).
1) A processing time of the control channel.
2) And the processing time of the downlink data channel scheduled by the control channel.
3) And the preparation time of the uplink data channel scheduled by the control channel.
4) And calculating or reporting the CSI scheduled by the control channel.
5) A preparation or reception time of the A-CSI-RS scheduled by the control channel;
6) The control channel scheduling preparation or transmission time of the A-SRS.
Optionally, as an embodiment, the scheduling restriction includes at least one of the following 1) to 2).
1) In the case that the first cell is self-scheduled, there is a first limit on a time interval between a first time point including a time point occupied by the control channel and a second time point including a time point occupied by a resource scheduled by the control channel.
2) And when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit.
Optionally, as an embodiment, the definition of the schedule time indication includes one of the following 1) and 2).
1) The time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value, or a value configured by the network side device. K0 is a time interval between the control channel and a downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is the time interval between the control channel and the uplink data channel scheduled by the control channel.
2) The time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by the network side device.
Optionally, as an embodiment, the apparatus further includes: and the sending module is used for sending the control channel according to the monitoring capability.
The apparatus 700 according to the embodiment of the present application may refer to the flow corresponding to the method 500 of the embodiment of the present application, and each unit/module and the other operations and/or functions described above in the apparatus 700 are respectively for implementing the corresponding flow in the method 500 and achieving the same or equivalent technical effects, and are not described herein again for brevity.
Optionally, as shown in fig. 8, an embodiment of the present application further provides a communication device 800, which includes a processor 801, a memory 802, and a program or an instruction stored on the memory 802 and executable on the processor 801, for example, when the communication device 800 is a terminal, the program or the instruction is executed by the processor 801 to implement the processes of the control channel monitoring method embodiment, and the same technical effect can be achieved. When the communication device 800 is a network-side device, the program or the instructions are executed by the processor 801 to implement the processes of the above-described control channel monitoring method embodiment, and the same technical effect can be achieved.
The embodiment of the application also provides a terminal, which comprises a processor and a communication interface, wherein the processor is used for determining the monitoring capability of the control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; the schedule time indication is defined. The terminal embodiment corresponds to the terminal-side method embodiment, and all implementation processes and implementation manners of the method embodiment can be applied to the terminal embodiment and can achieve the same technical effect. Specifically, fig. 9 is a schematic diagram of a hardware structure of a terminal for implementing the embodiment of the present application.
The terminal 900 includes but is not limited to: a radio frequency unit 901, a network module 902, an audio output unit 903, an input unit 904, a sensor 905, a display unit 906, a user input unit 907, an interface unit 908, a memory 909, and a processor 910, etc.
Those skilled in the art will appreciate that the terminal 900 may further include a power source (e.g., a battery) for supplying power to various components, and the power source may be logically connected to the processor 910 through a power management system, so as to manage charging, discharging, and power consumption management functions through the power management system. The terminal structure shown in fig. 9 does not constitute a limitation of the terminal, and the terminal may include more or less components than those shown, or combine some components, or have a different arrangement of components, and thus will not be described again.
It should be understood that, in the embodiment of the present application, the input Unit 904 may include a Graphics Processing Unit (GPU) 9041 and a microphone 9042, and the Graphics Processing Unit 9041 processes image data of a still picture or a video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The display unit 906 may include a display panel 9061, and the display panel 9061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 907 includes a touch panel 9071 and other input devices 9072. A touch panel 9071 also referred to as a touch screen. The touch panel 9071 may include two parts, a touch detection device and a touch controller. Other input devices 9072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.
In this embodiment, the radio frequency unit 901 receives downlink data from a network device and then processes the downlink data to the processor 910; in addition, the uplink data is sent to the network side equipment. Generally, the radio frequency unit 901 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
Memory 909 can be used to store software programs or instructions as well as various data. The memory 909 may mainly include a storage program or instruction area and a storage data area, wherein the storage program or instruction area may store an operating system, an application program or instruction (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. In addition, the Memory 909 may include a high-speed random access Memory and may also include a non-transitory Memory, wherein the non-transitory Memory may be a Read-Only Memory (ROM), a Programmable Read-Only Memory (PROM), an Erasable Programmable Read-Only Memory (Erasable PROM, EPROM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), or a flash Memory. Such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device.
Processor 910 may include one or more processing units; alternatively, the processor 910 may integrate an application processor, which mainly handles operating systems, user interfaces, and applications or instructions, etc., and a modem processor, which mainly handles wireless communications, such as a baseband processor. It is to be appreciated that the modem processor described above may not be integrated into processor 910.
The processor 910 may be configured to determine a monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
In the embodiment of the application, the first cell can be scheduled by at least two scheduling cells, and the number of the scheduling cells is not limited to one, so that the problem that scheduling blockage is easily caused due to limited control channel resources of the scheduling cells is solved, and the scheduling efficiency is improved; meanwhile, the terminal can also determine the processing time, scheduling limitation, scheduling time indication definition and the like related to the control channel according to the determined monitoring capability, and the complexity of terminal implementation is favorably reduced.
The terminal 900 provided in this embodiment of the present application may also implement each process of the foregoing control channel monitoring method embodiment, and may achieve the same technical effect, and for avoiding repetition, details are not described here again.
The embodiment of the application also provides a network side device, which comprises a processor and a communication interface, wherein the processor is used for determining the monitoring capability of the terminal on the control channel; wherein the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells; determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition. The embodiment of the network side device corresponds to the embodiment of the method of the network side device, and all implementation processes and implementation manners of the embodiment of the method can be applied to the embodiment of the network side device and can achieve the same technical effect.
Specifically, the embodiment of the application further provides a network side device. As shown in fig. 10, the network-side device 1000 includes: antenna 101, radio frequency device 102, baseband device 103. Antenna 101 is connected to radio frequency device 102. In the uplink direction, rf device 102 receives information via antenna 101 and sends the received information to baseband device 103 for processing. In the downlink direction, the baseband device 103 processes information to be transmitted and transmits the information to the rf device 102, and the rf device 102 processes the received information and transmits the processed information through the antenna 101.
The above-mentioned band processing apparatus may be located in the baseband apparatus 103, and the method performed by the network side device in the above embodiment may be implemented in the baseband apparatus 103, where the baseband apparatus 103 includes the processor 104 and the memory 105.
The baseband apparatus 103 may include, for example, at least one baseband board, on which a plurality of chips are disposed, as shown in fig. 10, where one of the chips, for example, the processor 104, is connected to the memory 105 to call up a program in the memory 105 to perform the network side device operation shown in the above method embodiment.
The baseband device 103 may further include a network interface 106, for exchanging information with the radio frequency device 102, and the interface is, for example, a Common Public Radio Interface (CPRI).
Specifically, the network side device in the embodiment of the present application further includes: the instructions or programs stored in the memory 105 and capable of being executed on the processor 104, and the processor 104 invokes the instructions or programs in the memory 105 to execute the method executed by each module shown in fig. 7, and achieve the same technical effect, and are not described herein in detail to avoid repetition.
The embodiments of the present application further provide a readable storage medium, where a program or an instruction is stored, and when the program or the instruction is executed by a processor, the program or the instruction implements each process of the foregoing control channel monitoring method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here.
The processor may be the processor in the terminal described in the foregoing embodiment. The readable storage medium includes a computer readable storage medium, such as a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and so on.
The embodiment of the present application further provides a chip, where the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or an instruction to implement each process of the control channel monitoring method embodiment, and can achieve the same technical effect, and the details are not repeated here to avoid repetition.
It should be understood that the chips mentioned in the embodiments of the present application may also be referred to as a system-on-chip, a system-on-chip or a system-on-chip, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present application may be embodied in the form of a computer software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (e.g., a mobile phone, a computer, a server, an air conditioner, or a network-side device) to execute the method according to the embodiments of the present application.
While the present embodiments have been described with reference to the accompanying drawings, it is to be understood that the invention is not limited to the precise embodiments described above, which are meant to be illustrative and not restrictive, and that various changes may be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (33)

1. A method for monitoring a control channel, comprising:
the terminal determines the monitoring capability of a control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells;
determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
2. The method of claim 1, wherein the at least two scheduling cells belong to a first scheduling cell group, and wherein the determining the monitoring capability of the control channel comprises: determining a monitoring capability of the control channel based on at least one of:
a first control channel resource restriction of cells of a second scheduling cell group, the first control channel resource restriction comprising an overall control channel resource restriction of each time domain unit based on a reference subcarrier spacing, SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group;
a second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS;
a third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell;
a time domain unit structure based on the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
3. The method of claim 2, wherein the reference SCS comprises one of:
maximum SCS of the first scheduling cell group;
a minimum SCS of the first scheduling cell group;
a maximum SCS of the second scheduling cell group;
a minimum SCS of the second scheduling cell group;
SCS configured by the network side equipment;
a predefined SCS.
4. The method of claim 2, wherein the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are derived by at least one of:
multiplying a control channel resource limit of each time domain unit of the reference SCS by a first coefficient;
multiplying a control channel resource limit for each time domain unit of the SCS of the at least one cell by a second coefficient;
the value reported by the terminal;
a predefined value;
a value configured by the network side device.
5. The method of claim 4, wherein the second coefficients in at least two time domain units are different.
6. The method of claim 1, wherein the monitoring capability is associated with at least one of:
whether a scheduling cell where the control channel is located contains control channel resource limitation spanning multiple time domain units or not;
whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS or not;
the control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
7. The method according to any of claims 1 to 6, wherein the granularity of the processing time is determined from a reference SCS.
8. The method of any of claims 1 to 6, wherein the processing time comprises at least one of:
a processing time of the control channel;
processing time of a downlink data channel scheduled by the control channel;
the preparation time of the uplink data channel scheduled by the control channel;
calculating or reporting time of the Channel State Information (CSI) scheduled by the control channel;
the preparation or reception time of the aperiodic CSI-RS scheduled by the control channel;
and controlling the preparation or transmission time of the aperiodic sounding reference signal (A-SRS) scheduled by the channel.
9. The method according to any of claims 1 to 6, wherein the scheduling constraint comprises at least one of:
under the condition that the first cell is self-scheduling, a first limit exists in a time interval between a first time point and a second time point, wherein the first time point comprises a time point occupied by the control channel, and the second time point comprises a time point occupied by resources scheduled by the control channel;
and when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit.
10. The method of any of claims 1 to 6, wherein the schedule time indication definition comprises one of:
the time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value or a value configured by the network side equipment;
the time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein n2 is a time domain unit corresponding to a time point occupied by the control channel on a scheduling cell of a reference SCS, and deta2 is a value reported by the terminal, a predefined value, or a value configured by a network side device;
k0 is a time interval between the control channel and a downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is a time interval between the control channel and an uplink data channel scheduled by the control channel.
11. The method of claim 1, wherein after determining the monitoring capability of the control channel, the method further comprises:
and monitoring the control channel according to the monitoring capability.
12. A method for monitoring a control channel, comprising:
the network side equipment determines the monitoring capability of the terminal on the control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells;
determining at least one of the following related to the control channel according to the monitoring capability: processing time; scheduling restrictions; a schedule time indication definition.
13. The method of claim 12, wherein the at least two scheduling cells belong to a first scheduling cell group, and wherein the determining the monitoring capability of the terminal on the control channel comprises: determining the monitoring capability of the terminal on the control channel according to at least one of the following:
a first control channel resource limitation for cells of a second scheduling cell group, the first control channel resource limitation comprising a total control channel resource limitation for each time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group;
a second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction per time domain unit based on a reference SCS;
a third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell;
based on the time domain unit structure of the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
14. The method of claim 13, wherein the reference SCS comprises one of:
maximum SCS of the first scheduling cell group;
a minimum SCS of the first scheduling cell group;
maximum SCS of the second scheduling cell group;
a minimum SCS of the second scheduling cell group;
SCS configured by the network side equipment;
a predefined SCS.
15. The method of claim 13, wherein the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are derived by at least one of:
multiplying a control channel resource limit of each time domain unit of the reference SCS by a first coefficient;
multiplying a control channel resource limit for each time domain unit of the SCS of the at least one cell by a second coefficient;
the value reported by the terminal;
a predefined value;
a value configured by the network side device.
16. The method of claim 15, wherein the second coefficients in at least two time domain units are different.
17. The method of claim 12, wherein the monitoring capability is associated with at least one of:
whether a scheduling cell in which the control channel is located contains control channel resource limitation spanning multiple time domain units;
whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS or not;
the control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
18. The method according to any of claims 12 to 17, wherein the granularity of the processing time is determined from a reference SCS.
19. The method of any one of claims 12 to 17, wherein the processing time comprises at least one of:
a processing time of the control channel;
processing time of a downlink data channel scheduled by the control channel;
the preparation time of the uplink data channel scheduled by the control channel;
calculating or reporting time of the CSI scheduled by the control channel;
a preparation or reception time of the A-CSI-RS scheduled by the control channel;
the control channel scheduled preparation or transmission time of the A-SRS.
20. The method according to any of claims 12 to 17, wherein the scheduling restriction comprises at least one of:
under the condition that the first cell is self-scheduling, a first limit exists in a time interval between a first time point and a second time point, wherein the first time point comprises a time point occupied by the control channel, and the second time point comprises a time point occupied by resources scheduled by the control channel;
and when the first cell is in cross-carrier scheduling and the carrier of the scheduling cell and the carrier of the first cell meet a second condition, adjusting the first limit to obtain a second limit.
21. The method according to any of claims 12 to 17, wherein the schedule time indication definition comprises one of:
the time points of the resources scheduled by the control channel are as follows: n1+ K0/K1/K2+ deta1; wherein n1 is a time point occupied by the control channel, and deta1 is a value reported by the terminal, a predefined value or a value configured by the network side equipment;
the time points of the resources scheduled by the control channel are as follows: n2+ deta2; wherein, n2 is a time domain unit corresponding to the time point occupied by the control channel on the scheduling cell of the reference SCS, and deta2 is a value reported by the terminal, a predefined value or a value configured by the network side device;
wherein, K0 is a time interval between the control channel and a downlink data channel scheduled by the control channel; k1 is a time interval between a downlink data channel scheduled by the control channel and feedback information of the downlink data channel; and K2 is the time interval between the control channel and the uplink data channel scheduled by the control channel.
22. The method of claim 12, wherein after determining the capability of the terminal to monitor the control channel, the method further comprises:
and sending the control channel according to the monitoring capability.
23. A control channel monitoring device, comprising:
the first determining module is used for determining the monitoring capability of the control channel; wherein the control channel is used for scheduling a first cell, the first cell being capable of being scheduled by at least two scheduling cells;
a second determining module, configured to determine, according to the monitoring capability, at least one of the following related to the control channel: processing time; scheduling restrictions; a schedule time indication definition.
24. The apparatus of claim 23, wherein the at least two scheduling cells belong to a first scheduling cell group, and wherein the first determining module is configured to: determining a monitoring capability of the control channel based on at least one of:
a first control channel resource restriction of a cell of a second scheduling cell group, the first control channel resource restriction comprising an overall control channel resource restriction per time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group;
a second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction per time domain unit based on a reference SCS;
a third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell;
a time domain unit structure based on the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
25. The apparatus of claim 24, wherein the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are derived by at least one of:
multiplying a control channel resource limit of each time domain unit of the reference SCS by a first coefficient;
multiplying a control channel resource limit for each time domain unit of the SCS of the at least one cell by a second coefficient;
a value reported by the device;
a predefined value;
a value configured by the network side device.
26. The apparatus of claim 23, wherein the monitoring capability is associated with at least one of:
whether a scheduling cell in which the control channel is located contains control channel resource limitation spanning multiple time domain units;
whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS or not;
the control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
27. A control channel monitoring device, comprising:
the first determining module is used for determining the monitoring capability of the terminal on the control channel; wherein the control channel is used for scheduling a first cell, which can be scheduled by at least two scheduling cells;
a second determining module, configured to determine, according to the monitoring capability, at least one of the following related to the control channel: processing time; scheduling restrictions; the schedule time indication is defined.
28. The apparatus of claim 27, wherein the at least two scheduling cells belong to a first scheduling cell group, and wherein the first determining module is configured to: determining the monitoring capability of the terminal on the control channel according to at least one of the following:
a first control channel resource limitation for cells of a second scheduling cell group, the first control channel resource limitation comprising a total control channel resource limitation for each time domain unit based on a reference SCS, wherein the second scheduling cell group is: the first scheduling cell group, or a partial cell of the first scheduling cell group;
a second control channel resource restriction of at least one cell of the first scheduling cell group, the second control channel resource restriction comprising a control channel resource restriction of each time domain unit based on a reference SCS;
a third control channel resource limit for at least one cell of the first scheduling cell group, the third control channel resource limit comprising a control channel resource limit for each time domain unit based on SCS of the at least one cell;
a time domain unit structure based on the reference SCS, at least one cell of the first scheduling cell group comprises N time domain units based on the SCS of the at least one cell, and each time domain unit in the N time domain units has independent fourth control channel resource limitation; n is an integer greater than 2.
29. The apparatus of claim 28, wherein the first control channel resource restriction, the second control channel resource restriction, the third control channel resource restriction, and the fourth control channel resource restriction are derived by at least one of:
multiplying a control channel resource limit of each time domain unit of the reference SCS by a first coefficient;
multiplying a control channel resource limit for each time domain unit of the SCS of the at least one cell by a second coefficient;
a value reported by the terminal;
a predefined value;
a value of the device configuration.
30. The apparatus of claim 28, wherein the monitoring capability is associated with at least one of:
whether a scheduling cell in which the control channel is located contains control channel resource limitation spanning multiple time domain units;
whether the SCS of the scheduling cell where the control channel is located is the same as the reference SCS or not;
the control channel resource limitation of each time domain unit of the SCS of the scheduling cell satisfies a first condition.
31. A terminal comprising a processor, a memory and a program or instructions stored on the memory and executable on the processor, the program or instructions when executed by the processor implementing a control channel monitoring method according to any one of claims 1 to 11.
32. A network-side device comprising a processor, a memory, and a program or instructions stored on the memory and executable on the processor, wherein the program or instructions, when executed by the processor, implement the control channel monitoring method according to any one of claims 12 to 22.
33. A readable storage medium, on which a program or instructions are stored, which program or instructions, when executed by a processor, implement a control channel monitoring method according to any one of claims 1 to 11, or implement a control channel monitoring method according to any one of claims 12 to 22.
CN202110541070.8A 2021-05-18 2021-05-18 Control channel monitoring method and device Pending CN115379436A (en)

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