CN109474994A - A kind of system information transmission method, network side equipment and mobile communication terminal - Google Patents

A kind of system information transmission method, network side equipment and mobile communication terminal Download PDF

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Publication number
CN109474994A
CN109474994A CN201710805681.2A CN201710805681A CN109474994A CN 109474994 A CN109474994 A CN 109474994A CN 201710805681 A CN201710805681 A CN 201710805681A CN 109474994 A CN109474994 A CN 109474994A
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China
Prior art keywords
transmission resource
system information
dci
transmission
mobile communication
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CN201710805681.2A
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Chinese (zh)
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CN109474994B (en
Inventor
柯颋
胡丽洁
侯雪颖
夏亮
马慧
杨光
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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China Mobile Communications Group Co Ltd
China Mobile Communications Co Ltd
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Priority to CN201710805681.2A priority Critical patent/CN109474994B/en
Publication of CN109474994A publication Critical patent/CN109474994A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
    • H04L1/0023—Systems modifying transmission characteristics according to link quality, e.g. power backoff characterised by the signalling
    • H04L1/0027—Scheduling of signalling, e.g. occurrence thereof
    • 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

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Quality & Reliability (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a kind of system information transmission method, network side equipment and mobile communication terminal, wherein, system information transmission method includes: that the first Downlink Control Information DCI for being used to indicate the second transfer resource is sent at least one first transfer resource in the embodiment of the present invention；The mobile communication terminal that accessed network is transmitted on second transfer resource needs received the first system information；Wherein, at least one described first transfer resource is the fractional transmission resource in the transfer resource for can carry in system information change cycle the first DCI.The present invention passes through the second transmission resources for transmitting the first system information of the first DCI instruction, has standardized the transmission of the first system information.

Description

System information transmission method, network side equipment and mobile communication terminal
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a system information transmission method, a network side device, and a mobile communication terminal.
Background
In an LTE (Long Term Evolution) system, the network bandwidth of a base station and the working bandwidth of a UE (user equipment) are the same in size, that is, only a UE with the working bandwidth equal to its network bandwidth can be accessed in the network of the base station, for example: when the network bandwidth of the base station is 20MHz, only UEs with the same operating bandwidth of 20MHz can access the network. In order to enable the UE in the RRC (Radio Resource Control) idle state to quickly access the system, the base station needs to periodically transmit system Information in a high density in a time domain, where the system Information includes MIB (Master Information Block) Information and multiple SIB (system Information Block) Information, such as SIB1 to SIB 13.
In a 5G (5th-Generation, fifth Generation mobile communication technology) NR (New Radio access) system, the network bandwidth of a base station may be greater than the operating bandwidth of a UE. When the network Bandwidth of the base station is greater than the operating Bandwidth of the UE, the network Bandwidth of the base station may be divided into a plurality of BWPs (Bandwidth parts), and the system information may be periodically transmitted using a partial Bandwidth in one BWP of the BWPs, such that the UE having an operating Bandwidth greater than or equal to a corresponding system information transmission Bandwidth receives the system information on the BWP, and initiates a random access procedure. After establishing the RRC connection, the terminal may switch to another BWP among the BWPs for normal traffic transmission. However, there is no relevant solution for how the connected UE acquires the changed system information or the system information required by the changed system information.
Disclosure of Invention
An object of the embodiments of the present invention is to provide a method for transmitting system information, a network side device and a mobile communication terminal, so as to standardize transmission of system information corresponding to a connected UE.
In order to achieve the above object, an embodiment of the present invention provides a system information transmission method, used for a network device, where the system information transmission method includes:
transmitting first downlink control information, DCI, indicating second transmission resources on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
The embodiment of the invention also provides a system information transmission method, which is used for the mobile communication terminal and comprises the following steps:
receiving first downlink control information, DCI, on at least one first transmission resource;
determining a second transmission resource according to the first DCI;
receiving first system information sent by network side equipment on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
An embodiment of the present invention further provides a network side device, where the network side device includes:
a transceiver for transmitting first downlink control information, DCI, for indicating second transmission resources on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
An embodiment of the present invention further provides a mobile communication terminal, including:
a transceiver for receiving first downlink control information, DCI, on at least one first transmission resource;
a processor configured to determine a second transmission resource according to the first DCI;
the transceiver is further configured to receive, on the second transmission resource, first system information sent by a network side device;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
An embodiment of the present invention further provides a communication device, including a memory, a processor, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the system information transmission method for a network side device as described above, or implements the system information transmission method for a mobile communication terminal as described above.
An embodiment of the present invention further provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the system information transmission method for a network-side device as described above, or implements the system information transmission method for a mobile communication terminal as described above.
In the embodiment of the invention, first downlink control information DCI used for indicating second transmission resources is sent on at least one first transmission resource; transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource; wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period. The invention transmits the first system information through the second transmission resource indicated by the first DCI, and specifies the transmission of the first system information.
Drawings
Fig. 1a is a flowchart illustrating a method for transmitting system information according to an embodiment of the present invention;
fig. 1b is a flowchart illustrating a system information transmission method according to another embodiment of the present invention;
fig. 1c is a flowchart illustrating a system information transmission method according to another embodiment of the present invention;
fig. 2 is a schematic diagram of a mobile communication terminal receiving system information according to an embodiment of the present invention;
fig. 3 is a diagram illustrating a mobile communication terminal receiving system information according to another embodiment of the present invention;
fig. 4 is a diagram illustrating a mobile communication terminal receiving system information according to another embodiment of the present invention;
fig. 5 is a diagram illustrating a mobile communication terminal receiving system information according to another embodiment of the present invention;
fig. 6 is a diagram illustrating a mobile communication terminal receiving system information according to still another embodiment of the present invention;
fig. 7 is a diagram illustrating a mobile communication terminal receiving system information according to still another embodiment of the present invention;
fig. 8 is a flowchart illustrating a system information transmission method according to another embodiment of the present invention;
fig. 9 is a schematic diagram of a network-side device according to an embodiment of the present invention;
fig. 10 is a schematic diagram of a network-side device according to another embodiment of the present invention;
fig. 11 is a diagram illustrating a mobile communication terminal according to an embodiment of the present invention;
fig. 12 is a schematic diagram of a network-side device according to another embodiment of the present invention;
fig. 13 is a diagram illustrating a mobile communication terminal according to still another embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the embodiment of the present invention, the system information transmission method may be applied to a system in which a network bandwidth may be configured with a plurality of BWPs, that is, in the system, the network bandwidth may be divided into a plurality of BWPs. The mobile communication terminal may receive the system information through one BWP of the plurality of BWPs to initiate a random access procedure when the mobile communication terminal does not access the network, and may transmit service data or/and receive the changed system information through the BWP or another BWP of the plurality of BWPs after accessing the network. The system may include, but is not limited to, eLTE, 4G or 5G NR, etc.
In the embodiment of the invention, the system information transmission method comprises a system information transmission method for network side equipment and a system information transmission method for a mobile communication terminal. The mobile communication terminal can communicate with the network side equipment through the network, and the mobile communication terminal is the mobile communication terminal accessed to the network side. The Mobile communication terminal may be a Mobile phone, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), a Wearable Device (Wearable Device), or the like. The network side device may be an evolved node B (eNB or eNodeB), or a relay station or an access point, or a base station in a 5G network (gNB), or a radio network controller on the network side, which is not limited herein.
In the embodiment of the present invention, a network side device sends first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource, and transmits first system information on the second transmission resource. Correspondingly, after receiving the first DCI on the first transmission resource, the mobile communication terminal acquires the second transmission resource indicated by the first DCI, and receives the first system information on the second transmission resource. Thereby normalizing the transmission of the first system information.
The following describes a system information transmission method applied to a network side device and a system information transmission method applied to a mobile communication terminal, respectively.
Referring to fig. 1a, fig. 1a shows a flowchart of a system information transmission method according to an embodiment of the present invention, where the system information transmission method according to the embodiment is used in a network side device, and as shown in fig. 1a, the method includes the following steps:
step 101, transmitting first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource.
And 102, transmitting the first system information which needs to be received by the mobile communication terminal accessed to the network side on the second transmission resource.
In this embodiment of the present invention, the at least one first transmission resource is a part of transmission resources in the transmission resources capable of carrying the first DCI in the system information change period, that is, a transmission resource set composed of the at least one first transmission resource is a subset of a transmission resource set composed of all transmission resources in the transmission resources capable of carrying the first DCI in the system information change period. It should be noted that the at least one first transmission resource is a part of transmission resources in the transmission resources that can carry the first DCI in the system information change period, and is defined from a time domain perspective.
In this way, the network side device sends the first DCI on a part of the transmission resources that can carry the first DCI in the system information change period, and accordingly, the mobile communication terminal receives the first DCI on a part of the transmission resources that can carry the first DCI in the system information change period, so that transmission resource overhead can be reduced.
In one system information change period, the network side device may repeatedly transmit the same first DCI and the first system information multiple times. The resource used by the network side device to send the first DCI in the system information change period is a transmission resource capable of carrying the first DCI in the system information change period, and the resource used by the network side device to send the first system information in the system information change period is a transmission resource capable of carrying the first system information in the system information change period.
For convenience of understanding, the unit of the time window length of the system information modification period is taken as a Radio Frame for illustration, but the unit of the time window length of the system information modification period is not limited in the present invention, and in other embodiments, the unit of the time window length of the system information modification period may be any one of a Radio Frame (Radio Frame), a SubFrame (SubFrame), a Slot (Slot), a minislot (Mini-Slot), and an OFDM Symbol (OFDM Symbol).
Referring to table 1, in table 1, each system information modification period is composed of 4 radio frames with a time length of 10 ms. As shown in table 1, the network side device transmits the first DCI in each radio frame in each system information change period, for example: for the second system information change period, the network side device transmits the first DCI for the first time in the radio frame 4, where "F" in table 1 indicates that the first DCI is transmitted for the first time in one system information change period, and the first DCI is repeatedly transmitted in the radio frame 5, the radio frame 6, and the radio frame 7, respectively, and "F" in table 1 indicates that the first DCI is repeatedly transmitted in one system information change period, where the radio frame in table 1 corresponds to a transmission resource in the embodiment of the present invention.
Table 1: transmission relation table between system information change period and first DCI
In this embodiment of the present invention, the time domain position of the at least one first transmission resource may be determined in a plurality of ways, and the following describes the various determining ways:
determining that the time domain position of the at least one first transmission resource is predefined.
In this embodiment, the system predefines the time domain location of the at least first transmission resource used to transmit the first DCI, e.g.: the system may directly solidify the time domain position of the at least one first transmission resource in a communication protocol between the network side device and the mobile communication terminal. In this way, both the mobile communication terminal and the network side device can directly read the time domain position of the at least one first transmission resource from the communication protocol, and respectively send and receive the first DCI at the time domain position, without determining the time domain position of the first transmission resource according to the indication of the network side device, thereby saving the system overhead.
In the second determination method, the network side device may determine in advance a time domain position of a transmission resource capable of carrying the first DCI in the system information change period, determine a time domain position of the at least first transmission position from the time domain position of the transmission resource capable of carrying the first DCI, and notify the mobile communication terminal. Different from the predefined time domain position of the at least one first transmission resource in the determination mode 1, the determination mode 2 may change the time domain position of the at least one first transmission resource through the network side device, so as to improve flexibility of time domain position configuration of the at least one first transmission resource.
The time domain position of the transmission resource capable of bearing the first DCI in the system information change period may also be predetermined by the network side device in a plurality of ways, which is specifically described as follows:
optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined.
In this embodiment, the system may pre-define the time domain location of the resource that may carry the first DCI, for example: the system can directly solidify the time domain position of the resource capable of bearing the first DCI in the communication protocol between the network side equipment and the mobile communication terminal. In this way, the mobile terminal can directly read the time domain position of the transmission resource capable of bearing the first DCI in the communication protocol, and therefore, the network side device only needs to notify the mobile terminal of the specific position of the time domain position of the at least one first transmission resource in the time domain position of the resource capable of bearing the first DCI, so that the transmission time of the first system information can be saved.
In other embodiments, the network side device may configure a time domain position of a transmission resource that can carry the first DCI in the system information change period. In this embodiment, the network side device needs to notify the mobile communication terminal of the time domain position of the transmission resource capable of carrying the first DCI.
Therefore, optionally, before the step of sending the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource, the method further includes:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of carrying the first DCI.
The first indication Information may be carried through a Radio Resource Control (RRC) signaling dedicated for the mobile communication terminal, or may be carried through other System Information, such as SIB1 Information in an LTE System, or RMSI (Remaining Minimum System Information) in an NR System, which is not limited in the present invention.
In this way, after receiving the first indication information, the mobile communication terminal may determine the time domain position of the transmission resource capable of carrying the first DCI according to the first indication information.
In addition, after the network side device notifies the mobile communication terminal of the time domain position of the transmission resource capable of bearing the first DCI through the first indication information, the terminal may receive the first DCI at the possible time domain positions. However, in order to improve the receiving efficiency and reduce the power consumption of the mobile communication terminal, in a specific embodiment of the present invention, the network side device may configure a time window length T or a maximum number M of times for repeatedly sending the first DCI, so that the mobile communication terminal can determine the time domain position of the first transmission resource from the time domain position of the transmission resource capable of bearing the first DCI according to the parameter T or M, so that the mobile communication terminal does not need to receive at every possible time domain position any more, thereby improving the receiving efficiency and reducing the power consumption of the mobile communication terminal.
Specifically, if the network side device configures a time window length T for repeatedly sending the first DCI, which indicates that the network side device determines that all time domain positions in the time window with the length T are time domain positions of the at least first transmission resource from the start position of the system information change period, the network side device will repeatedly send the first DCI from the start position of the system information change period on all time domain positions of the transmission resources capable of carrying the first DCI in the time window with the length T, and the network side device does not send the first DCI any more outside the time domain positions, and the terminal only needs to perform receiving processing at the determined time domain positions.
If the network side device configures the maximum number M of times that the system message repeatedly transmits the first DCI, which indicates that the network side device determines that the first M time domain positions of the transmission resources capable of carrying the first DCI are the time domain positions of the at least one first transmission resource from the start position of the system information change period, the network side device repeatedly transmits the first DCI from the start position of the system information change period to the first M time domain positions of the transmission resources capable of carrying the first DCI, and the network side device does not transmit the first DCI any more outside the time domain positions, but the terminal only needs to perform receiving processing at the determined time domain positions. Wherein M may be an integer greater than or equal to 1 and less than the number of time-domain positions of transmission resources that can carry the first DCI in a system information update period.
It should be noted that, in the embodiment of the present invention, the network side device may configure a certain time domain transmission period and a start transmission position offset for the first DCI corresponding to each system message. The unit of the transmission period and the offset of the starting transmission position may be any one of a Radio Frame (Radio Frame), a SubFrame (SubFrame), a Slot (Slot), a Mini-Slot (Mini-Slot), and an OFDM Symbol (OFDM Symbol), or a combination of several time units thereof. For example, the unit of the transmission period is a radio frame, and the unit of the starting transmission position offset is a radio frame and a subframe.
In addition, the network side device may also indicate, in a window manner, a time domain position of a transmission resource that can carry the first DCI. I.e. defining periodic time windows, the time window parameters of which include: a period of the time window, a starting transmission position offset of the time window, and a length of the time window. And the base station selects a proper time domain transmission unit in each time window to send the system message. The unit of the period of the time window, the offset of the initial transmission position of the time window, and the length of the time window may be any one of a Radio Frame (Radio Frame), a SubFrame (SubFrame), a Slot (Slot), a minislot (Mini-Slot), and an OFDM Symbol (OFDM Symbol), or a combination of several time units. For example, the period of the time window is in units of radio frames, the starting transmission position offset of the time window is in units of radio frames and subframes, and the length of the time window is in units of subframes.
In an embodiment of the present invention, in order to improve the receiving efficiency and reduce the power consumption of the mobile communication terminal, before the step of sending the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource, the method further includes:
and sending second indication information, wherein the second indication information is used for the mobile communication terminal to determine the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of bearing the first DCI.
In this way, after receiving the second indication information, the mobile communication terminal may determine the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources carrying the first DCI by using the second indication information, without performing a search at every possible time domain position.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI or a maximum number of times M. Specifically, if the second indication information is the time window length for repeatedly sending the first DCI, the mobile communication terminal may determine, from the time domain positions of the transmission resources capable of carrying the first DCI, the time domain position of the transmission resource falling into the time window length from the start position of the system information change period as the time domain position of the at least one first transmission resource. If the second indication information is the maximum number M of times of repeatedly sending the first DCI, the mobile communication terminal may determine, from the time domain positions of the transmission resources capable of carrying the first DCI, that M time domain positions before a start position of a system information change period are the time domain position of the at least one first transmission resource.
In other embodiments, the second indication information may also be RRC signaling information carrying the length of the time window or the maximum number M of times that the first DCI is repeatedly transmitted, or other system information carrying the length of the time window or the maximum number M of times that the first DCI is repeatedly transmitted. The invention is not limited in this regard.
In this embodiment of the present invention, after the network side device sends the first DCI for indicating the second transmission resource on the at least one first transmission resource, the network side device sends the first system information on the second transmission resource. The second transmission resource may be a PDSCH (Physical Downlink Shared Channel) resource, the first system information may be at least one of changed system information and system information sent as needed, and the first system information may carry a time domain position indicating a transmission resource for sending other DCI except the first DCI.
Optionally, after the step of transmitting the first system information that needs to be received by the mobile communication terminal on the accessed network side on the second transmission resource, the method further includes:
sending a second DCI on a third transmission resource, where the second DCI is used to indicate a fourth transmission resource, and a time domain position of the third transmission resource or a time domain position of a transmission resource that includes the third transmission resource and can carry the second DCI is carried by the first system information;
transmitting the second system information on the fourth transmission resource.
In this embodiment, the first system information carries a time domain position used for indicating a third transmission resource or a time domain position of a transmission resource that includes the third transmission resource and can carry the second DCI. In this way, after receiving the first system information, the mobile communication terminal may obtain, from the first system information, a time domain position of a third transmission resource or a time domain position of a transmission resource that includes the third transmission resource and can carry the second DCI, further receive, on the third transmission resource, the second DCI indicating a fourth transmission resource, and receive, on the fourth transmission resource, the second system information.
In this way, after the network side device sends the first system information in a broadcast manner, the network side device does not need to send indication information for indicating the time domain position of the third transmission resource or the time domain position of the transmission resource which includes the third transmission resource and can bear the second DCI through a unicast manner, that is, through a dedicated RRC signaling of the mobile communication terminal, so as to notify the mobile communication terminal to receive the second DCI indicating the fourth transmission resource on the third transmission resource, thereby reducing signaling overhead and transmission resource overhead.
The above description is directed to the determination method of the time domain position of the first transmission resource, it should be noted that the determination method of the time domain position of the second transmission resource is the same as the determination method of the time domain position of the first transmission resource, and specific reference may be made to the above description, and in order to avoid repetition, details are not repeated here.
The following further describes a manner of determining the frequency domain positions of the first transmission resource and the second transmission resource.
In this embodiment of the present invention, after the mobile communication terminal establishes the RRC connection with the network side device, the network side device may configure at least one BWP and at least one core Resource Set (Control Resource Set) for the mobile communication terminal. Wherein, the CORESET can be smaller than or equal to the bandwidth of BWP, and a plurality of CORESETs can be continuous or non-continuous.
Taking the example that the network side device configures BWP1 for the mobile communication terminal, and configures one core set1 in BWP1, the mobile communication terminal may receive DCI in core set1 in BWP1, and receive DL (Downlink) data in PDSCH in BWP1 and/or transmit UL (Uplink) data in PUSCH (Physical Uplink Shared Channel)/PUCCH (Physical Uplink Control Channel) in BWP 1.
In this embodiment of the present invention, the frequency domain position of the at least one first transmission resource may also be determined in multiple ways, and the following description describes each determination way as follows:
in a first determination manner, optionally, the BWP where the at least one first transmission resource is located is the BWP initially accessed by the mobile communication terminal, that is, the frequency domain location of the first transmission resource is a part of the predefined frequency domain location of the control resource set CORESET of the BWP initially accessed by the mobile communication terminal.
In this embodiment, the system predefines the frequency domain location of the at least first transmission resource used for transmitting the first DCI as a part of the frequency domain location of the set of control resources, CORESET, of the BWP initially accessed by the mobile communication terminal, for example: the system may directly solidify the frequency domain location of the at least one first transmission resource in a communication protocol between the network side device and the mobile communication terminal.
In this way, both the mobile communication terminal and the network side device may directly read the frequency domain location of the at least first transmission resource from the communication protocol as a part of the frequency domain location of the control resource set CORESET of the BWP initially accessed by the mobile communication terminal, and respectively transmit and receive the first DCI at the frequency domain location. Since the frequency domain position of the first transmission resource is directly solidified in the communication protocol between the network side device and the mobile communication terminal, and no additional signaling is needed, the embodiment can reduce the network signaling overhead. However, when the BWP currently used by the mobile communication terminal for data transmission does not coincide with the BWP initially accessed, the mobile communication terminal of a small bandwidth may need to switch the BWP. When switching BWP, the mobile communication terminal requires a certain processing time, and the mobile communication terminal needs to suspend data communication during the processing time. Therefore, the present embodiment may cause a certain loss in data transmission throughput of the mobile communication terminal.
In the second determination method, optionally, the BWP where the at least one first transmission resource is located is the BWP currently used by the mobile communication terminal for data transmission, that is, the frequency domain position of the first transmission resource is a part of the predefined frequency domain position of the core set of the BWP currently used by the mobile communication terminal for data transmission.
In this embodiment, the system predefines the frequency domain location of the at least first transmission resource for transmitting the first DCI as a part of the frequency domain location of the core set of the BWP currently used by the mobile communication terminal for data transmission, for example: the system may directly solidify the frequency domain location of the at least one first transmission resource in a communication protocol between the network side device and the mobile communication terminal.
In this way, both the mobile communication terminal and the network side device may directly read, from the communication protocol, a part of the frequency domain location of the at least first transmission resource, which is the frequency domain location of the core set of the BWP currently used by the mobile communication terminal for data transmission, and respectively transmit and receive the first DCI at the frequency domain location. Since the frequency domain position of the first transmission resource is directly solidified in the communication protocol between the network side device and the mobile communication terminal, and no additional signaling is needed, the embodiment can reduce the network signaling overhead. Meanwhile, the second determination method does not require switching the BWP, compared to the first determination method, and thus does not cause a loss in data transmission throughput of the mobile communication terminal.
In a third determination manner, optionally, the BWP where the at least one first transmission resource is located is a BWP configured by the network-side device.
In this embodiment, the network side device may, but is not limited to, pre-configure the BWP where the at least one first transmission resource is located through RRC signaling information.
In this way, after receiving the RRC signaling message, the mobile communication terminal may obtain the frequency domain location of the at least one first transmission resource from the RRC signaling message, and receive the first DCI at the frequency domain location and the time domain location of the at least one first transmission resource, thereby improving a success rate of receiving the first DCI by the mobile communication terminal. Different from the comparison scheme for determining the frequency domain position of the at least one first transmission resource in the first determination mode and the second determination mode in a predefined manner, the implementation scheme for determining the frequency domain position of the at least one first transmission resource configured by the network side device in the third determination mode may increase the flexibility of the frequency domain position configuration of the at least one first transmission resource although a certain network signaling overhead may be brought.
In the embodiment of the invention, the first system information is transmitted on the second transmission resource. The frequency domain position of the second transmission resource is composed of two parts, which are the target BWP and the frequency domain position in the target BWP. The frequency domain location of the second transmission resource may be determined in a number of ways, which are described below:
optionally, the first DCI carries:
first information indicating a target BWP where the second transmission resource is located, and second information indicating a frequency domain location of the second transmission resource in the target BWP.
In this embodiment, the first DCI simultaneously carries first information indicating a target BWP where the second transmission resource is located, and second information indicating a frequency domain position of the second transmission resource in the target BWP, that is, the first DCI completely indicates the frequency domain position of the second transmission resource. In this way, after receiving the first DCI, the mobile communication terminal may acquire the frequency domain location of the second transmission resource and receive the first system information at the frequency domain location.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
In this embodiment, the first DCI carries the second information of the frequency domain position of the second transmission resource in the target BWP, and does not carry the first information indicating the target BWP where the second transmission resource is located. Therefore, in order to obtain the frequency domain position of the second transmission resource, it is also necessary to determine the target BWP where the second transmission resource is located. In this embodiment, the BWP where the second transmission resource is located may be predefined or configured by the network side device.
Specifically, the target BWP where the second transmission resource is located may be a predefined BWP that the mobile communication terminal initially accesses; or the target BWP where the second transmission resource is located may be a predefined BWP currently used by the mobile communication terminal for data transmission; or the target BWP where the second transmission resource is located may be a predefined BWP where the at least one first transmission resource is located, that is, the second transmission resource and the first DCI are located at the same BWP; or the target BWP where the second transmission resource is located may be a BWP configured by the network-side device, and specifically, may be a BWP configured by the network-side device through RRC signaling.
It should be noted that, in other embodiments, the mobile communication terminal may also determine the time-frequency location of the second transmission resource based on at least one of the received first DCI attribute information and the timing information carried by the first DCI attribute information. The attribute information of the first DCI may include, but is not limited to, transmission time information of the first DCI, such as a time slot in which the first DCI is located.
In addition, the frequency domain position of the first DCI and the frequency domain position of the second transmission resource may be in the same time slot or subframe, or may be in different time slots or subframes, which is not limited in this embodiment of the present invention.
The system information transmission method of the embodiment of the invention can be used in the following scenes:
in the first scenario, the network side finds that the system information changes, and needs to send the changed system information to the mobile communication terminal accessed to the network side.
Specifically, after determining that the system information is changed, the network side device sends, on at least one first transmission resource, first downlink control information DCI for indicating a second transmission resource, and transmits, on the second transmission resource, the changed system information, where the first system information is the changed system information. Correspondingly, after receiving the first DCI on the first transmission resource, the mobile communication terminal acquires the second transmission resource indicated by the first DCI, and receives the first system information on the second transmission resource. Thereby standardizing the transmission of the changed system information.
As shown in fig. 1b, the system information transmission method includes the following steps:
step 201, the network side device determines that the system information is changed.
Step 202, the network side device sends indication information to the mobile communication terminal, for notifying the mobile communication terminal that the system information is changed, and the network side device sends time domain location information of the first transmission resource of the first DCI.
Step 203, the mobile communication terminal receives the indication information and determines the time domain position of the first transmission resource of the first DCI sent by the network side device.
Step 204, the network side device sends a first DCI for indicating a second transmission resource and first system information.
Step 205, the mobile communication terminal receives the first DCI, and receives the first system information in the second transmission resource according to the indication of the first DCI.
And in a second scenario, the mobile communication terminal accessed to the network side needs some system information based on a certain requirement, and sends a request to the network side, and the network side transmits the system information based on the request of the mobile communication terminal in the manner described above.
Specifically, after receiving a system information request of a mobile communication terminal, a network side device sends first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource, and transmits first system information occurring on the second transmission resource, where in this scenario, the first system information is required system information. Correspondingly, after receiving the first DCI on the first transmission resource, the mobile communication terminal acquires the second transmission resource indicated by the first DCI, and receives the first system information on the second transmission resource. Thereby normalizing the transmission of the required system information.
As shown in fig. 1c, the system information transmission method includes the following steps:
step 301, the mobile communication terminal sends a system information request to the network side device.
Step 302, the network side device receives a system information request sent by the mobile communication terminal.
Step 303, the network side device sends indication information to the mobile communication terminal, for notifying the network side device of sending the time domain location information of the first transmission resource of the first DCI.
Step 304, the mobile communication terminal determines the time domain position of the first transmission resource of the first DCI sent by the network side device.
Step 305, the network side device sends a first DCI for indicating a second transmission resource and first system information.
Step 306, the mobile communication terminal receives the first DCI, and receives the first system information in the second transmission resource according to the indication of the first DCI.
In the embodiment of the present invention, in order to improve the success rate and the timeliness rate of the mobile communication terminal receiving the changed system information, the network side device may notify the mobile communication terminal that the system information is about to be changed before sending the changed system information to the mobile communication terminal, and then send the changed system information, that is, the first system information, in the next system information change period.
That is, before the step of transmitting the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource, the method further includes:
when the system information is changed, sending third indication information through a third DCI or a paging message, wherein the third indication information is used for indicating that the system information is changed in the next system information change period;
the first system information is changed system information.
In this step, when it is determined that the system information needs to be changed, the network side device sends third indication information for indicating system information change through a third DCI or a paging message, so that the mobile communication terminal is notified that the changed system information can be received at the start position of the next system information change period after receiving the third indication information. Therefore, the success rate of the mobile terminal for receiving the changed system information can be improved.
The third indication information is used for indicating that the system information is changed in the next system information change period. Specifically, the third indication information may be a System information Modification field in the paging message. The third indication information may also be a System information Value Tag (System information Value Tag) field contained in SIB1, and the Value of the System information Value Tag is incremented by 1 each time System information changes. In this way, the mobile communication terminal can determine whether the system information is changed by the difference between the value of the field received this time and the value of the field received last time, specifically, if the difference is greater than zero, the mobile communication terminal can determine that the system information is changed, and the currently stored system information is invalid and needs to acquire the changed system information again; otherwise, the mobile communication terminal can judge that the system information is not changed, and the currently stored system information is still valid.
It will be appreciated that the mobile communication terminal will continue to use the old system information until it receives new system information. In addition, in one system information change period, the network side device may transmit the system information changed a plurality of times, but in the same system information change period, the content of the system information is not changed.
Optionally, when the third indication information is carried by a paging message, before the step of sending the third indication information, the method further includes:
when system information is changed, configuring the same identification for at least two mobile communication terminals which need to receive the first system information, so that time domain sending resources corresponding to paging messages of the at least two mobile communication terminals which need the first system information are the same.
In this embodiment, the third indication information is carried by a paging message, where the third indication information is mainly used to notify the mobile communication terminal on the accessed network that the system information is to be changed in the next system information change period.
In the existing LTE system, time domain transmission resources of a paging message are determined by a Mobile communication terminal according to an ISMI (International Mobile Subscriber Identity) identifier of the Mobile communication terminal, and the time domain transmission resources of the paging message determined by the Mobile communication terminal having different identifiers are likely to be different. Specifically, an embodiment is that a positive integer (for example 1024) is modulo according to the ISMI identifier of the mobile communication terminal to obtain an intermediate identifier, and then the time domain transmission resource of the paging message is determined according to the intermediate identifier, and the time domain transmission resources of the paging message determined by the mobile communication terminals having different intermediate identifiers are different. Obviously, in the present embodiment, it is highly probable that the time domain transmission resources of the paging message determined by the mobile communication terminals having different identities are different.
Therefore, it is necessary to prevent and solve the problem that when there are a large number of mobile communication terminals accessing the network side, the network side device needs to repeatedly transmit the same paging message on different time domain transmission resources due to different identifiers of the mobile communication terminals accessing the network side, which results in high network signaling overhead. In this embodiment, the network side device may configure the same identifier for at least two mobile communication terminals that need to receive the first system information, so that the time domain transmission resources corresponding to the paging messages of the at least two mobile communication terminals that need to receive the first system information are the same, and thus, for the at least two mobile communication terminals that need to receive the first system information, the network side device only needs to transmit one paging message carrying third indication information, so as to notify that the system information of the at least two mobile communication terminals that need to receive the first system information will be changed in the next system information change period. In an embodiment, the network side device configures a virtual identifier for the mobile communication terminal through RRC signaling, so as to calculate a time domain transmission resource of the paging message. And the network side equipment configures the same virtual identification for at least two mobile communication terminals through an implementation technology, so that time domain sending resources corresponding to paging messages of the at least two mobile communication terminals are the same. Compared with the prior art that each mobile communication terminal sends one paging message respectively, the embodiment of the invention can send one paging message for at least two mobile communication terminals, thereby reducing the network signaling overhead.
Of course, the network side device may not configure the identifier for the mobile communication terminal, so that the mobile communication terminal may calculate the sending timing of the paging message by using the real identifier of the mobile communication terminal. Wherein, the real mark of the mobile communication terminal is: an ISMI (International Mobile subscriber identity), S-TMSI (temporary identification number generated and maintained by a mobility management entity), IMEI (permanent identity assigned by equipment manufacturer), GUTI (dynamic identity assigned by core network), or a function determined by at least one of the foregoing. In one embodiment, the mobile communication terminal calculates a time domain transmission resource for the paging message based on the first identification (ID 1). When the mobile communication terminal has obtained a Virtual Identification (VID) configuration, then the mobile communication terminal selects the ID1 as VID; otherwise, when the mobile communication terminal does not obtain a Virtual Identification (VID) configuration, then the mobile communication terminal selects the ID1 as AID, where AID represents the real identification of the mobile communication terminal, such as at least one of ISMI, S-TMSI, IMEI, GUTI, or a function determined by at least one of them. Optionally, the step of sending the third indication information through the third DCI or the paging message when the system information changes includes:
when system information is changed, sending a third DCI carrying third indication information on a BWP used by the mobile communication terminal for data transmission currently; or
When the system information is changed, sending fourth DCI for indicating a fifth transmission resource on BWP used by the mobile communication terminal for data transmission currently, and transmitting a paging message carrying the third indication information on the fifth transmission resource. In this embodiment, the third indication information is sent through the third DCI or the paging message on the BWP currently used by the mobile communication terminal for data transmission, and the mobile communication terminal can receive the third indication information without switching the BWP, and further determine whether the system message is changed, so as to ensure the smoothness of service data transmission.
Optionally, the third indication information carries: third information indicating the BWP where the at least one first transmission resource is located, or fourth information indicating the control resource set CORESET where the at least one first transmission resource is located.
In this way, after receiving the third indication information, the mobile communication terminal may obtain the frequency domain position of the at least one first transmission resource from the third indication information, and then receive the first DCI at the frequency domain position and the time domain position of the at least one first transmission resource, thereby improving the success rate of receiving the first DCI by the mobile communication terminal.
Optionally, after the step of transmitting the first system information that needs to be received by the mobile communication terminal on the accessed network side on the second transmission resource, the method further includes:
and receiving fourth indication information sent by the mobile communication terminal, wherein the fourth indication information is used for indicating a receiving result of the first system information.
In this embodiment, after the mobile communication terminal receives all the first system information, the mobile communication terminal sends fourth indication information to the network side device, indicating the reception result of the first system information. The fourth indication information may be SR (scheduling request) information. The fourth indication information at least comprises at least one of the following information: receiving all required system information; all required system information is not received; an additional kind of system information to be received is required.
Specifically, if the mobile communication terminal is able to receive all the required system information within the frequency domain position where the base station transmits the first system information, the fourth indication information may include all the required system information.
If the mobile communication terminal is in the frequency domain where the base station transmits the first system information, it may need to receive some additional system information, such as: the mobile communication terminal misses some system information; and/or the base station only transmits part of the system information. The fourth indication information may include that all required system information is not received or that a kind of system information that needs to be additionally received is included.
When the network side device receives the fourth indication information reported by the mobile communication terminal and determines the type of the system message that the mobile communication terminal needs to receive, the network side device may send the system message required by the network side device to the mobile communication terminal through the broadcasted system message or the RRC signaling dedicated to the mobile communication terminal. Thereby improving the reliability of system information transmission. In practical applications, the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource may be determined by any of the above manners. The following description will be made by specific embodiments.
It should be noted that, in the various embodiments provided in this embodiment, the network bandwidth is divided into BWP1, BWP2, BWP3, BWP4, and BWP5 as an example, where BWP1 is a first BWP currently used by UE1 for data transmission, BWP3 is a second BWP initially accessed by the UE, and BWP5 is a third BWP.
In fig. 2 to 7, a dotted line with an arrow represents an initial access procedure of the UE1, and a solid line with an arrow represents a handover procedure of the UE 1; the vertical axis represents BWP, and the BWP on the vertical axis from top to bottom are BWP1, BWP2, BWP3, BWP4 and BWP5 respectively; the horizontal axis represents a system information change period, and a left portion of a dotted line on the horizontal axis represents an nth system information change period for the UE to complete initial access, and a right portion of the dotted line represents an N +1 th system information change period for the UE to receive the first system information. It should be noted that, the number of transmission resources in the nth system information change period and the N +1 th system information change period in fig. 2 to 7 are merely examples, and in practical applications, the number of transmission resources in the nth system information change period and the N +1 th system information change period are equal to each other. Wherein N is a natural number greater than 1.
In fig. 2 to 7, the network side device repeatedly transmits the first system information twice in the (N + 1) th system information change period, but the present invention is not limited to this, and may be specifically determined according to actual needs.
In the first embodiment, the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are both the first BWP currently used by the mobile communication terminal for data transmission, that is, the BWP where the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are located is the first BWP. The base station transmits the first DCI in a first BWP, and transmits the first system information in the first BWP.
The frequency domain position of the first transmission resource may be predefined for the first BWP currently used by the mobile communication terminal for data transmission, may be configured by the network side device, and may also be configured through the third indication information. The frequency domain position of the second transmission resource is the first BWP currently used by the mobile communication terminal for data transmission, and may be indicated by the first DCI, predefined, or configured by the network side device. For the specific description, reference may be made to the description in the determination manner of the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and details are not repeated here in order to avoid repetition.
As shown in fig. 2, the UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to BWP1 for traffic data transmission. The first DCI is directly received in BWP1, and when the system information is changed, the first system information is directly received in BWP 1.
In this embodiment, the UE1 may receive the first DCI and the first system information without switching the working frequency point/bandwidth, so that the loss of the service data transmission throughput of the UE1 is not caused.
In a second embodiment, the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are both the second BWP initially accessed by the mobile communication terminal, that is, the BWP where the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are located is the second BWP. The base station transmits the first DCI in a second BWP, and transmits the first system information in the second BWP.
The frequency domain position of the first transmission resource may be predefined for the second BWP initially accessed by the mobile communication terminal, may be configured by the network side device, and may also be configured through the third indication information. The frequency domain position of the second transmission resource may be indicated by the first DCI, may be predefined, or may be configured by the network side device for the second BWP initially accessed by the mobile communication terminal. For the specific description, reference may be made to the description in the determination manner of the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and details are not repeated here in order to avoid repetition.
As shown in fig. 3, the UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to BWP1 for traffic data transmission. And switching from BWP1 to BWP3 to receive the first DCI, interrupting service data transmission when system information is changed, and switching from BWP1 to BWP3 to receive the first system information. After all the first DCI or the first system information is received, the BWP3 is switched to the BWP1, and the service data transmission is continued.
As shown in fig. 4, the UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to BWP1 for traffic data transmission. And switching from BWP1 to BWP3 to receive the first DCI and transmit the service data, and switching from BWP1 to BWP3 to receive the first system information and transmit the service data without interrupting the transmission of the service data when the system information is changed. After all the first DCI or the first system information is received, the BWP3 is switched to the BWP1, and the service data transmission is continued.
Note that this embodiment requires the UE to perform 2 BWP handovers. Since the data transmission needs to be interrupted at the instant of BWP handover, this embodiment will at least bring a certain loss of throughput for the service data transmission compared to the first embodiment.
However, since the base station always transmits the system message on the initial access BWP3, the UE can accomplish the system message update purpose by directly listening to the existing system message on BWP 3. Compared with the method of sending additional system messages on BWP1, the method of the embodiment can reduce the network resource overhead.
In summary, compared to the first embodiment, although the present embodiment may cause a certain loss of the service data transmission throughput, the network resource overhead can be reduced.
Further, comparing the two embodiments shown in fig. 3 and fig. 4, since the UE does not perform traffic data transmission on BWP3 in the embodiment shown in fig. 3, the traffic data transmission throughput loss caused by the method of fig. 3 is larger than that caused by the method shown in fig. 4. FIG. 4, on the other hand, may increase the network load of BWP 3. Thus, the method of FIG. 4 may not work properly when the network load on BWP3 is heavy. That is, compared with the method shown in fig. 3, although the method shown in fig. 4 brings less traffic data transmission throughput loss, the application range is relatively limited.
In a third embodiment, the frequency-domain position of the first transmission resource is a first BWP currently used by the mobile communication terminal for data transmission, the frequency-domain position of the second transmission resource is a second BWP initially accessed by the mobile communication terminal, that is, the BWP where the frequency-domain position of the first transmission resource is located is the first BWP, and the BWP where the frequency-domain position of the second transmission resource is located is the second BWP. The base station transmits the first DCI in a first BWP and transmits the first system information in a second BWP.
The frequency domain position of the first transmission resource may be predefined for the first BWP currently used by the mobile communication terminal for data transmission, may be configured by the network side device, and may also be configured through the third indication information. The frequency domain position of the second transmission resource is the first BWP currently used by the mobile communication terminal for data transmission, and may be indicated by the first DCI, predefined, or configured by the network side device. For the specific description, reference may be made to the description in the determination manner of the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and details are not repeated here in order to avoid repetition.
As shown in fig. 5, the UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to BWP1 for traffic data transmission. The first DCI is received directly in BWP1, and when the system information is changed, the service data transmission is interrupted, and BWP1 switches to BWP3 to receive the first system information. Different from fig. 3, in the present embodiment, after receiving one piece of first system information, the UE1 switches from BWP3 to BWP1 to continue transmitting the service data, and then switches from BWP1 to BWP3 to receive the first system information, and this process is repeated until all the first system information is received. It should be noted that fig. 6 illustrates that the first system information is repeatedly transmitted twice, but the embodiment of the present invention does not limit this.
Therefore, different from the embodiment corresponding to fig. 3, the embodiment can improve the smoothness of service data transmission and improve user experience; unlike the corresponding embodiment of fig. 4, the present embodiment may reduce the traffic load of BWP.
In the fourth embodiment, the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are both the third BWP, that is, the BWPs where the frequency-domain position of the first transmission resource and the frequency-domain position of the second transmission resource are both the third BWP, where the third BWP is any one of the BWPs included in the network bandwidth except the first BWP currently used by the mobile communication terminal for data transmission and the second BWP initially accessed by the mobile communication terminal. The base station transmits the first DCI in a third BWP, and transmits the first system information in the third BWP.
The frequency domain position of the first transmission resource may be configured by the network side device, or may be configured by the third indication information, where the first BWP is currently used by the mobile communication terminal for data transmission. The frequency domain position of the second transmission resource is the first BWP currently used by the mobile communication terminal for data transmission, and may be indicated by the first DCI, predefined, or configured by the network side device. For the specific description, reference may be made to the description in the determination manner of the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and details are not repeated here in order to avoid repetition.
As shown in fig. 6, the UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to BWP1 for traffic data transmission. And switching from BWP1 to BWP5 to receive the first DCI and transmit data, and switching from BWP1 to BWP5 to receive the first system information and transmit data when the system information is changed.
Unlike the second embodiment, the UE1 of the present embodiment receives the first system information and performs data transmission in the BWP5, so that the load of the BWP3 can be reduced.
In a fifth embodiment, the frequency-domain position of the first transmission resource is a first BWP currently used by the mobile communication terminal for data transmission, the frequency-domain position of the second transmission resource is a third BWP, that is, the BWP where the frequency-domain position of the first transmission resource is located is the first BWP, and the BWP where the frequency-domain position of the second transmission resource is located is the third BWP, where the third BWP is any one of the BWPs included in the network bandwidth except for the first BWP currently used by the mobile communication terminal for data transmission, and the third BWP may be the same as or different from the second BWP.
The frequency domain position of the first transmission resource may be predefined for the first BWP currently used by the mobile communication terminal for data transmission, may be configured by the network side device, and may also be configured through the third indication information. The frequency domain position of the second transmission resource may be indicated by the first DCI, or may be configured by the network side device, for the first BWP currently used by the mobile communication terminal for data transmission. For the specific description, reference may be made to the description in the determination manner of the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and details are not repeated here in order to avoid repetition.
In one embodiment of the present invention, the network-side device may configure the third BWP as the second BWP initially accessed by the mobile communication terminal, but the network-side device may further additionally configure transmission resources for the UE that has accessed the network side to receive the first system information, such that the density of the transmission resources that the UE that has accessed the network side can use to receive the first system information is greater than the density of the transmission resources that the UE that has not accessed the network side can use to receive the first system information. Therefore, the time for the UE which has access to the network side to receive all the first system messages can be saved. The embodiment corresponding to fig. 7 is described as follows.
As shown in fig. 7, since BWP3 in the nth system information change period is mainly used for UE1 to complete initial access, i.e., UE1 does not access the network side device in the nth system information change period, UE1 can only receive old system information in the second transmission resource in BWP3 to complete initial access. In the (N + 1) th system information change cycle, the UE1 has access to the network side device, so the UE1 can receive the first system information in the second transmission resource of BWP3 and the additionally configured transmission resource, thereby saving the time for the UE1 having access to the network side device to receive all the first system messages.
Referring to fig. 8, fig. 8 is a flowchart illustrating a system information transmission method according to another embodiment of the present invention, where the system information transmission method is applied to a mobile communication terminal, and as shown in fig. 8, the method includes:
step 801 receives first downlink control information, DCI, on at least one first transmission resource.
Step 802, determining a second transmission resource according to the first DCI.
Step 803, receiving the first system information sent by the network side device on the second transmission resource.
Wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
Optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined, or
Before the step of receiving the first downlink control information DCI on at least one first transmission resource, the method further includes: and receiving first indication information, and determining the time domain position of the transmission resource capable of bearing the first DCI according to the first indication information.
Optionally, before the step of receiving the first downlink control information DCI on at least one first transmission resource, the method further includes:
receiving second indication information;
determining a time domain position of the at least one first transmission resource from the time domain positions of the transmission resources carrying the first DCI by using the second indication information.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI, and the step of determining the time domain position of the at least one first transmission resource from the time domain position of the transmission resource carrying the first DCI by using the second indication information specifically includes: determining, from the time domain positions of the transmission resources capable of carrying the first DCI, a time domain position of a transmission resource falling within the time window length from a system information change period starting position as a time domain position of the at least one first transmission resource; or,
the determining, by using the second indication information, a time domain position of the at least one first transmission resource from the time domain position of the transmission resource carrying the first DCI includes: and determining M time domain positions before the system information change period starting position from the time domain positions of the transmission resources capable of bearing the first DCI as the time domain positions of the at least one first transmission resource.
Optionally, the first DCI carries:
first information indicating a target BWP where the second transmission resource is located; and
second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the BWP where the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
Optionally, before the step of receiving the first downlink control information DCI on at least one first transmission resource, the method further includes:
receiving third indication information which is sent by the network side equipment through third DCI or paging information and indicates that system information is changed;
the first system information is changed system information.
Optionally, the step of receiving third indication information that indicates that system information changes and is sent by the network side device through the DCI signaling or the paging message specifically includes:
receiving a third DCI carrying the third indication information on BWP currently used by the mobile communication terminal for data transmission; or
And receiving fourth DCI for indicating a fifth transmission resource on BWP currently used by the mobile communication terminal for data transmission, and receiving a paging message indicating that system information is changed on the fifth transmission resource.
Optionally, the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
Optionally, after the step of receiving the first system information sent by the network side device on the second transmission resource, the method further includes:
and sending fourth indication information which indicates the receiving result of the first system information.
It should be noted that the present embodiment is implemented as a mobile communication terminal corresponding to the above method embodiment, and therefore, reference may be made to the relevant description in the above method embodiment, and the same beneficial effects may be achieved. To avoid repetition of the description, the description is omitted.
The embodiment of the invention also provides network side equipment. Fig. 9 is a schematic diagram of a network-side device according to an embodiment of the present invention, and as shown in fig. 9, the network-side device 900 includes:
a first transceiver 901 configured to transmit first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
Optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined; or
The first transceiver 901 is further configured to send first indication information before sending, on at least one first transmission resource, first downlink control information DCI for indicating a second transmission resource, where the first indication information is used to indicate a time domain position of the transmission resource that can carry the first DCI.
Optionally, the first transceiver 901 is further configured to send second indication information before sending, on at least one first transmission resource, first downlink control information DCI for indicating a second transmission resource, where the second indication information is used by the mobile communication terminal to determine a time domain position of the at least one first transmission resource from among time domain positions of transmission resources that can carry the first DCI.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI or a maximum number of times M.
Optionally, the first DCI carries:
first information indicating a target partial bandwidth BWP where the second transmission resource is located, and second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the BWP where the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
Optionally, the first transceiver 901 is further configured to send, before sending, on at least one first transmission resource, first downlink control information DCI for indicating a second transmission resource, third indication information through a third DCI or a paging message when system information is changed, where the third indication information is used to indicate that the system information is changed in a next system information change period;
the first system information is changed system information.
Optionally, when the third indication information is carried by a paging message, as shown in fig. 10, the network side device 900 further includes: a first processor 902, configured to configure, before sending the third indication information, the same identifier for at least two mobile communication terminals that need to receive the first system information when the system information is changed, so that time domain sending resources corresponding to paging messages of the at least two mobile communication terminals that need the first system information are the same.
Optionally, the first transceiver 901 is specifically configured to:
when system information is changed, sending a third DCI carrying third indication information on a BWP used by the mobile communication terminal for data transmission currently; or
When the system information is changed, sending fourth DCI for indicating a fifth transmission resource on BWP used by the mobile communication terminal for data transmission currently, and transmitting a paging message carrying the third indication information on the fifth transmission resource.
Optionally, the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
Optionally, the first transceiver 901 is further configured to receive fourth indication information sent by the mobile communication terminal after transmitting, on the second transmission resource, the first system information that needs to be received by the mobile communication terminal that has accessed the network, where the fourth indication information is used to indicate a reception result of the first system information.
It should be noted that, in this embodiment, the network-side device 900 may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of a base station in the method embodiment of the present invention may be implemented by the network-side device 900 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.
The embodiment of the invention also provides a mobile communication terminal. Fig. 11 is a diagram illustrating a mobile communication terminal according to an embodiment of the present invention, and as shown in fig. 11, the mobile communication terminal 1100 includes:
a second transceiver 1101 for receiving first downlink control information, DCI, on at least one first transmission resource;
a second processor 1102 configured to determine a second transmission resource according to the first DCI;
the second transceiver 1101 is further configured to receive, on the second transmission resource, first system information sent by a network-side device;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
Optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined, or
The second transceiver 1101 is further configured to receive first indication information before receiving a first downlink control information DCI on at least one first transmission resource, and the second processor 1102 is further configured to determine a time domain location of the transmission resource that can carry the first DCI according to the first indication information.
Optionally, the second transceiver 1101 is further configured to receive second indication information before receiving the first downlink control information DCI on the at least one first transmission resource;
a second processor 1102, further configured to determine a time domain position of the at least one first transmission resource from the time domain positions of the transmission resources carrying the first DCI by using the second indication information.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI, and the second processor 1102 is specifically configured to: determining, from the time domain positions of the transmission resources capable of carrying the first DCI, a time domain position of a transmission resource falling within the time window length from a system information change period starting position as a time domain position of the at least one first transmission resource; or,
the second indication information is the maximum number M of times that the first DCI is repeatedly sent, and the second processor 1102 is specifically configured to: and determining M time domain positions before the system information change period starting position from the time domain positions of the transmission resources capable of bearing the first DCI as the time domain positions of the at least one first transmission resource.
Optionally, the first DCI carries:
first information indicating a target BWP where the second transmission resource is located; and
second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the BWP where the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
Optionally, the second transceiver 1101 is further configured to receive, before receiving the first downlink control information DCI on at least one first transmission resource, third indication information that indicates that the system information is changed and is sent by the network side device through a third DCI or a paging message;
the first system information is changed system information.
Optionally, the second transceiver 1101 is specifically configured to:
receiving a third DCI carrying the third indication information on BWP currently used by the mobile communication terminal for data transmission; or
And receiving fourth DCI for indicating a fifth transmission resource on BWP currently used by the mobile communication terminal for data transmission, and receiving a paging message indicating that system information is changed on the fifth transmission resource.
Optionally, the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
Optionally, the second transceiver 1101 is further configured to send fourth indication information after receiving the first system information sent by the network side device on the second transmission resource, where the fourth indication information indicates a reception result of the first system information.
It should be noted that, in this embodiment, the mobile communication terminal 1100 may be a mobile communication terminal according to any implementation manner in the method embodiment of the present invention, and any implementation manner of the mobile communication terminal in the method embodiment of the present invention may be implemented by the mobile communication terminal 1100 in this embodiment, so as to achieve the same beneficial effects, and details are not described here.
Referring to fig. 12, an embodiment of the present invention further provides a network-side device, where the network-side device includes a first memory 1201, a third processor 1202, a first transceiver (not shown), and a first computer program 12011 stored in the first memory 1201 and operable on the third processor 1202, where the first computer program 12011, when executed by the third processor 1202, implements the following steps:
transmitting first downlink control information, DCI, indicating second transmission resources on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
Optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined, or
The first computer program 12011, when executed by the third processor 1202, may further implement the steps of:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of carrying the first DCI.
Optionally, the first computer program 12011, when executed by the third processor 1202, may further implement the following steps:
and sending second indication information, wherein the second indication information is used for the mobile communication terminal to determine the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of bearing the first DCI.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI or a maximum number of times M.
Optionally, the first DCI carries:
first information indicating a target partial bandwidth BWP where the second transmission resource is located, and second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the BWP where the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
Optionally, the first computer program 12011, when executed by the third processor 1202, may further implement the following steps:
when the system information is changed, sending third indication information through a third DCI or a paging message, wherein the third indication information is used for indicating that the system information is changed in the next system information change period;
the first system information is changed system information.
Optionally, the first computer program 12011, when executed by the third processor 1202, may further implement the following steps:
when system information is changed, configuring the same identification for at least two mobile communication terminals which need to receive the first system information, so that time domain sending resources corresponding to paging messages of the at least two mobile communication terminals which need the first system information are the same.
Optionally, the first computer program 12011, when executed by the third processor 1202, may further implement the following steps:
when system information is changed, sending a third DCI carrying third indication information on a BWP used by the mobile communication terminal for data transmission currently; or
When the system information is changed, sending fourth DCI for indicating a fifth transmission resource on BWP used by the mobile communication terminal for data transmission currently, and transmitting a paging message carrying the third indication information on the fifth transmission resource.
Optionally, the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
Optionally, the first computer program 12011, when executed by the third processor 1202, may further implement the following steps: and receiving fourth indication information sent by the mobile communication terminal, wherein the fourth indication information is used for indicating a receiving result of the first system information.
It should be noted that, in this embodiment, the network-side device may be a network-side device in any implementation manner in the method embodiment of the present invention, and any implementation manner of the network-side device in the method embodiment of the present invention may be implemented by the network-side device in this embodiment, so as to achieve the same beneficial effects, and details are not described here.
The embodiment of the invention also provides a mobile communication terminal. Fig. 13 is a schematic diagram of a mobile communication terminal according to an embodiment of the present invention, as shown in fig. 13, the mobile communication terminal includes a second memory 1301, a fourth processor 1302, a second transceiver (not shown), and a second computer program 13011 stored in the second memory 1301 and operable on the fourth processor 1302, where the second computer program 13011 implements the following steps when executed by the fourth processor 1302:
receiving first downlink control information, DCI, on at least one first transmission resource;
determining a second transmission resource according to the first DCI;
receiving first system information sent by network side equipment on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
Optionally, the time domain position of the at least one first transmission resource is predefined.
Optionally, a time domain position of the transmission resource capable of carrying the first DCI is predefined, or
The second computer program 13011, when executed by the fourth processor 1302, may further implement the steps of:
receiving first indication information;
and determining the time domain position of the transmission resource capable of bearing the first DCI according to the first indication information.
Optionally, the second computer program 13011, when executed by the fourth processor 1302, may further implement the following steps:
receiving second indication information;
determining a time domain position of the at least one first transmission resource from the time domain positions of the transmission resources carrying the first DCI by using the second indication information.
Optionally, the second indication information is a length of a time window for repeatedly sending the first DCI, and when being executed by the fourth processor 1302, the second computer program 13011 may further implement the following steps: determining, from the time domain positions of the transmission resources capable of carrying the first DCI, a time domain position of a transmission resource falling within the time window length from a system information change period starting position as a time domain position of the at least one first transmission resource; or,
the second indication information is the maximum number M of times the first DCI is repeatedly transmitted, and the second computer program 13011 may further implement the following steps when executed by the fourth processor 1302: and determining M time domain positions before the system information change period starting position from the time domain positions of the transmission resources capable of bearing the first DCI as the time domain positions of the at least one first transmission resource.
Optionally, the first DCI carries:
first information indicating a target BWP where the second transmission resource is located; and
second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
Optionally, the BWP where the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
Optionally, the second computer program 13011, when executed by the fourth processor 1302, may further implement the following steps:
receiving third indication information which is sent by the network side equipment through third DCI or paging information and indicates that system information is changed;
the first system information is changed system information.
Optionally, the second computer program 13011, when executed by the fourth processor 1302, may further implement the following steps:
receiving a third DCI carrying the third indication information on BWP currently used by the mobile communication terminal for data transmission; or
And receiving fourth DCI for indicating a fifth transmission resource on BWP currently used by the mobile communication terminal for data transmission, and receiving a paging message indicating that system information is changed on the fifth transmission resource.
Optionally, the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
Optionally, the second computer program 13011, when executed by the fourth processor 1302, may further implement the following steps:
and sending fourth indication information which indicates the receiving result of the first system information.
It should be noted that, in this embodiment, the mobile communication terminal may be a mobile communication terminal in any implementation manner in the method embodiment of the present invention, and any implementation manner of the mobile communication terminal in the method embodiment of the present invention may be implemented by the mobile communication terminal in this embodiment, so as to achieve the same beneficial effects, and details are not described here again.
It can be understood by those skilled in the art that all or part of the steps of the method for implementing the embodiments described above can be implemented by hardware related to program instructions, the program can be stored in a computer readable medium, and when the program is executed by a processor, the method for transmitting system information according to any of the embodiments of the method described above can be implemented, and the same technical effects can be achieved.
The storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (27)

1. A system information transmission method is used for network side equipment, and is characterized by comprising the following steps:
transmitting first downlink control information, DCI, indicating second transmission resources on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
2. The system information transmission method according to claim 1,
the time domain position of the transmission resource capable of carrying the first DCI is predefined; or
Before the step of sending the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource, the method further includes:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of carrying the first DCI.
3. The method for transmitting system information according to claim 2, wherein the step of transmitting the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource further comprises:
and sending second indication information, wherein the second indication information is used for the mobile communication terminal to determine the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of bearing the first DCI.
4. The method according to claim 3, wherein the second indication information is a length of a time window or a maximum number of times M for repeatedly transmitting the first DCI.
5. The method of claim 1, wherein the first DCI carries:
first information indicating a target partial bandwidth BWP where the second transmission resource is located, and second information indicating a frequency domain position of the second transmission resource in the target BWP.
6. The method according to claim 1, wherein the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
7. The method according to claim 1, wherein the BWP of the at least one first transmission resource is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
8. The method for transmitting system information according to claim 1, wherein the step of transmitting the first downlink control information DCI for indicating the second transmission resource on the at least one first transmission resource further comprises:
when the system information is changed, sending third indication information through a third DCI or a paging message, wherein the third indication information is used for indicating that the system information is changed in the next system information change period;
the first system information is changed system information.
9. The method for transmitting system information according to claim 8, wherein when the third indication information is carried by a paging message, before the step of sending the third indication information, the method further comprises:
when system information is changed, configuring the same identification for at least two mobile communication terminals which need to receive the first system information, so that time domain sending resources corresponding to paging messages of the at least two mobile communication terminals which need the first system information are the same.
10. The method for transmitting system information according to claim 8, wherein the step of sending the third indication information through the third DCI or the paging message when the system information changes includes:
when system information is changed, sending a third DCI carrying third indication information on a BWP used by the mobile communication terminal for data transmission currently; or
When the system information is changed, sending fourth DCI for indicating a fifth transmission resource on BWP used by the mobile communication terminal for data transmission currently, and transmitting a paging message carrying the third indication information on the fifth transmission resource.
11. The system information transmission method according to claim 8, wherein the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
12. The method for transmitting system information according to claim 1, wherein after the step of transmitting the first system information that needs to be received by the mobile communication terminal having access to the network on the second transmission resource, the method further comprises:
and receiving fourth indication information sent by the mobile communication terminal, wherein the fourth indication information is used for indicating a receiving result of the first system information.
13. A system information transmission method for a mobile communication terminal, comprising:
receiving first downlink control information, DCI, on at least one first transmission resource;
determining a second transmission resource according to the first DCI;
receiving first system information sent by network side equipment on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
14. The system information transmission method according to claim 13,
the time domain position of the transmission resource capable of carrying the first DCI is predefined, or
Before the step of receiving the first downlink control information DCI on at least one first transmission resource, the method further includes:
and receiving first indication information, and determining the time domain position of the transmission resource capable of bearing the first DCI according to the first indication information.
15. The method for transmitting system information according to claim 14, wherein the step of receiving the first downlink control information DCI on the at least one first transmission resource further comprises:
receiving second indication information;
determining a time domain position of the at least one first transmission resource from the time domain positions of the transmission resources carrying the first DCI by using the second indication information.
16. The system information transmission method according to claim 15,
the determining, by using the second indication information, a time domain position of the at least one first transmission resource from the time domain position of the transmission resource carrying the first DCI includes: determining, from the time domain positions of the transmission resources capable of carrying the first DCI, a time domain position of a transmission resource falling within the time window length from a system information change period starting position as a time domain position of the at least one first transmission resource; or,
the determining, by using the second indication information, a time domain position of the at least one first transmission resource from the time domain position of the transmission resource carrying the first DCI includes: and determining M time domain positions before the system information change period starting position from the time domain positions of the transmission resources capable of bearing the first DCI as the time domain positions of the at least one first transmission resource.
17. The method of claim 13, wherein the first DCI comprises:
first information indicating a target BWP where the second transmission resource is located; and
second information indicating a frequency domain position of the second transmission resource in the target BWP.
18. The method according to claim 13, wherein the target BWP where the second transmission resource is: BWP initially accessed by the mobile communication terminal; or the BWP currently used by the mobile communication terminal for data transmission; or a BWP in which the at least one first transmission resource is located; or BWP configured by the network-side device;
the first DCI carries: second information indicating a frequency domain position of the second transmission resource in the target BWP.
19. The method according to claim 13, wherein the BWP of the at least one first transmission resource is:
BWP initially accessed by the mobile communication terminal; or
The mobile communication terminal currently performs BWP used for data transmission; or
BWP configured by the network-side device.
20. The method for transmitting system information according to claim 13, wherein the step of receiving the first downlink control information DCI on the at least one first transmission resource further comprises:
receiving third indication information which is sent by the network side equipment through third DCI or paging information and indicates that system information is changed;
the first system information is changed system information.
21. The method for transmitting system information according to claim 20, wherein the step of receiving third indication information that indicates that the system information changes and is sent by the network side device through DCI signaling or a paging message specifically includes:
receiving a third DCI carrying the third indication information on BWP currently used by the mobile communication terminal for data transmission; or
And receiving fourth DCI for indicating a fifth transmission resource on BWP currently used by the mobile communication terminal for data transmission, and receiving a paging message indicating that system information is changed on the fifth transmission resource.
22. The system information transmission method according to claim 20, wherein the third indication information carries:
third information indicating a BWP in which the at least one first transmission resource is located, or
Fourth information indicating a set of control resources, CORESET, in which the at least one first transmission resource is located.
23. The method for transmitting system information according to claim 13, further comprising, after the step of receiving the first system information sent by the network-side device on the second transmission resource:
and sending fourth indication information which indicates the receiving result of the first system information.
24. A network-side device, comprising:
a transceiver for transmitting first downlink control information, DCI, for indicating second transmission resources on at least one first transmission resource;
transmitting first system information which needs to be received by the mobile communication terminal accessed to the network on the second transmission resource;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
25. A mobile communication terminal, comprising:
a transceiver for receiving first downlink control information, DCI, on at least one first transmission resource;
a processor configured to determine a second transmission resource according to the first DCI;
the transceiver is further configured to receive, on the second transmission resource, first system information sent by a network side device;
wherein the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in a system information change period.
26. A communication device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the computer program, when executed by the processor, implements a system information transmission method according to any one of claims 1 to 12 or implements a system information transmission method according to any one of claims 13 to 23.
27. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out a method for system information transmission according to any one of claims 1 to 12, or carries out a method for system information transmission according to any one of claims 13 to 23.
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