CN109474994B - System information transmission method, network side equipment and mobile communication terminal - Google Patents

System information transmission method, network side equipment and mobile communication terminal Download PDF

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CN109474994B
CN109474994B CN201710805681.2A CN201710805681A CN109474994B CN 109474994 B CN109474994 B CN 109474994B CN 201710805681 A CN201710805681 A CN 201710805681A CN 109474994 B CN109474994 B CN 109474994B
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system information
transmission resource
transmission
dci
information
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CN109474994A (en
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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 Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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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 invention provides a system information transmission method, network side equipment and a mobile communication terminal, wherein the system information transmission method comprises the following steps: in the embodiment of the invention, first downlink control information DCI for indicating a second transmission resource is sent on at least one first transmission resource; transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period. The invention transmits the first system information through the second transmission resource indicated by the first DCI, thereby standardizing 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 operating bandwidth of a UE (User Equipment) are consistent, i.e. only UEs having an operating bandwidth equal to the network bandwidth of the base station can be accessed in the network of the base station, for example: when the network bandwidth of the base station is 20MHz, only the UE with the same 20MHz working bandwidth 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 the time domain with higher density, where the system information includes MIB (Master Information Block ) information and SIB (System Information Block, system information block) information, such as SIB1 to SIB13.
In a 5G (5 th-Generation, fifth Generation mobile communication technology) NR (Radio access) system, a network bandwidth of a base station may be greater than an operation 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 BWP (Bandwidth Part) and system information may be periodically transmitted using a partial Bandwidth of one of the BWP so that the UE having the operating Bandwidth greater than or equal to the 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 plurality of BWPs for normal traffic transmission. However, there is no relevant solution for how to obtain the changed system information or the system information needed by the UE in the connected state.
Disclosure of Invention
An object of an embodiment of the present invention is to provide a system information transmission method, a network side device, and a mobile communication terminal, so as to specify transmission of system information corresponding to a UE in a connected state.
In order to achieve the above object, an embodiment of the present invention provides a system information transmission method, for a network device, the system information transmission method including:
Transmitting first Downlink Control Information (DCI) for indicating a second transmission resource on at least one first transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
The embodiment of the invention also provides a system information transmission method for the mobile communication terminal, which 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
The embodiment of the invention also provides a network side device, which comprises:
A transceiver for transmitting first downlink control information, DCI, on at least one first transmission resource for indicating a second transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period.
The embodiment of the invention also provides a mobile communication terminal, which comprises:
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 modification period.
The embodiment of the invention also provides a communication device, which comprises a memory, a processor and a computer program stored in the memory and capable of running on the processor, wherein the computer program realizes the system information transmission method for the network side device or the system information transmission method for the mobile communication terminal when being executed by the processor.
The embodiment of the present invention also provides a computer-readable storage medium having stored thereon a computer program which, 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 for indicating a second transmission resource is sent on at least one first transmission resource; transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period. The invention transmits the first system information through the second transmission resource indicated by the first DCI, thereby standardizing the transmission of the first system information.
Drawings
Fig. 1a shows a flowchart of a system information transmission method according to an embodiment of the present invention;
fig. 1b is a flowchart of a system information transmission method according to another embodiment of the present invention;
fig. 1c is a flowchart of a system information transmission method according to another embodiment of the present invention;
Fig. 2 is a schematic diagram of a mobile communication terminal according to an embodiment of the present invention for receiving system information;
fig. 3 is a schematic diagram showing a mobile communication terminal according to another embodiment of the present invention receiving system information;
fig. 4 is a schematic diagram showing a mobile communication terminal according to another embodiment of the present invention receiving system information;
fig. 5 is a schematic diagram showing a mobile communication terminal according to another embodiment of the present invention receiving system information;
fig. 6 is a schematic diagram showing a mobile communication terminal according to another embodiment of the present invention receiving system information;
fig. 7 is a schematic diagram showing a mobile communication terminal according to another embodiment of the present invention receiving system information;
fig. 8 is a flowchart of 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 shows a schematic diagram of 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 schematic diagram of a mobile communication terminal according to another embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the embodiment of the invention, the system information transmission method can be applied to a system with a network bandwidth capable of configuring a plurality of BWPs, namely, in the system, the network bandwidth can be divided into a plurality of BWPs. The mobile communication terminal may receive the system information through one BWP of the BWP when the network is not accessed, initiate the random access procedure, and may perform service data transmission or/and receive the changed system information through the BWP or other BWP of the BWP after the network is accessed. The system may include, but is not limited to, a system including eLTE, 4G, or 5G NR.
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 (Tablet Personal Computer), a Laptop (Laptop Computer), a personal digital assistant (personal digital assistant, PDA for short), a mobile internet Device (Mobile Internet Device, MID) or a Wearable Device (PDA), etc. The network-side device may be an evolved node b (Evolutional Node B, eNB or eNodeB for short), or a relay station or an access point, or a base station in a 5G network (gNB for short), or a radio network controller on the network side, etc., which are not limited herein.
In the embodiment of the invention, the network side equipment sends first Downlink Control Information (DCI) for indicating the 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 a 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 is used for a network side device, as shown in fig. 1a, and includes the following steps:
step 101, first downlink control information DCI for indicating a second transmission resource is sent on at least one first transmission resource.
Step 102, the first system information which needs to be received by the mobile communication terminal at the accessed network side is transmitted on the second transmission resource.
In the embodiment of the present invention, the at least one first transmission resource is a part of transmission resources in transmission resources capable of carrying the first DCI in the system information modification 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 transmission resources capable of carrying the first DCI in the system information modification period. 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 modification period, and is defined by selecting the first transmission resources from a time domain perspective.
In this way, the network side device sends the first DCI on a part of the transmission resources capable of carrying the first DCI in the system information change period, and correspondingly, the mobile communication terminal receives the first DCI on a part of the transmission resources capable of carrying the first DCI in the system information change period, so that the transmission resource overhead can be reduced.
In one system information changing period, the network side device may repeatedly send the same first DCI and first system information multiple times. The resource used for the network side device to send the first DCI in the system information changing period is the transmission resource capable of bearing the first DCI in the system information changing period, and the resource used for the network side device to send the first system information in the system information changing period is the transmission resource capable of bearing the first system information in the system information changing period.
For convenience of understanding, the unit of the time window length of the system information modification period is exemplified as a Radio Frame, but the present invention is not limited to the unit of the time window length of the system information modification period, 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 Mini-Slot (Mini-Slot), and an OFDM Symbol (OFDM Symbol).
Referring to table 1, in table 1, each system information change 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 modification period, for example: for the second system information modification 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 modification period, and the first DCI is repeatedly transmitted in each of the radio frames 5, 6 and 7, and "F" in table 1 indicates that the first DCI is repeatedly transmitted in one system information modification period, where the radio frame in table 1 corresponds to the transmission resource in the embodiment of the present invention.
Table 1: transmission relation table of system information change period and first DCI
Figure GDA0004087811830000061
In the embodiment of the present invention, the time domain position of the at least one first transmission resource may be determined in a plurality of manners, and the following description describes the various manners of determination as follows:
in one aspect, the time domain location of the at least one first transmission resource is predefined.
In this embodiment, the system predefines a time domain location of the at least first transmission resource for transmitting the first DCI, e.g.: the system may directly solidify the time domain location of the at least one first transmission resource in a communication protocol of 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 send and receive the first DCI at the time domain position respectively, without determining the time domain position of the first transmission resource according to the indication of the network side device, so that the system overhead can be saved.
In the second determining manner, the network side device may determine, in advance, a time domain position of a transmission resource capable of carrying the first DCI in a system information modification period, determine, from the time domain positions of the transmission resource capable of carrying the first DCI, the time domain position of the at least first transmission position, and notify the mobile communication terminal. Unlike determining the predefined time domain position of the at least one first transmission resource in the manner 1, the manner 2 may change the time domain position of the at least one first transmission resource through the network side device, and thus may improve flexibility of time domain position configuration of the at least one first transmission resource.
The network side device may also determine, in advance, a time domain position of a transmission resource capable of carrying the first DCI in a system information modification period in various manners, which is specifically described as follows:
optionally, the time domain position of the transmission resource that can carry the first DCI is predefined.
In this embodiment, the system may predefine a time domain location of a resource that may carry the first DCI, e.g.: the system may directly solidify the time domain position of the resource capable of carrying the first DCI in a communication protocol between the network side device 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, so that the network side device only needs to inform the mobile terminal that the time domain position of the at least one first transmission resource is at a specific position of the time domain position capable of bearing the first DCI, thereby saving the transmission time of the first system information.
In other embodiments, the network side device may configure a time domain location of a transmission resource that may carry the first DCI in a system information modification period. In this embodiment, the network side device needs to notify the mobile communication terminal of the time domain location of the transmission resource that can carry the first DCI.
Therefore, optionally, 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:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of bearing the first DCI.
The first indication information may be carried by RRC (Radio Resource Control ) signaling dedicated to the mobile communication terminal, or may be carried by other system information, for example, SIB1 information in the LTE system, RMSI (Remaining Minimum System Information ) in the NR system, or the like, 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 informs 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 to obtain the first DCI. However, in order to improve the receiving efficiency and reduce the power consumption of the mobile communication terminal, in the specific embodiment of the present invention, the network side device may configure a time window length T or a maximum number of times M for repeatedly sending the first DCI, so that the mobile communication terminal may determine the time domain position of the first transmission resource from the time domain positions of the transmission resources capable of carrying the first DCI according to the parameter T or M, so that the mobile communication terminal no longer needs to receive at each possible time domain position, thereby improving the receiving efficiency and reducing the power consumption of the mobile communication terminal.
Specifically, if the network side device configures the time window length T for repeatedly transmitting the first DCI, which means 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 system information change period starting position, the network side device will repeatedly transmit the first DCI at all time domain positions capable of carrying the transmission resource of the first DCI in the time window with the length T from the system information change period starting position, and outside the time domain positions, the network side device does not transmit the first DCI, and the terminal only needs to perform receiving processing at the determined time domain positions.
If the network side device configures the maximum number of times M of repeated transmission of the first DCI, which means that the network side device determines that the first M time domain positions capable of carrying the transmission resources of 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 will repeatedly transmit the first DCI from the first M time domain positions capable of carrying the transmission resources of the first DCI, and outside the determined time domain positions, the network side device does not transmit the first DCI, and 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 the transmission resource that can carry the first DCI in the system information update period.
It should be noted that, in the embodiment of the present invention, the network side device may configure a determined time domain transmission period and an initial transmission position offset for the first DCI corresponding to each system message. The unit of the transmission period and the initial transmission position offset may be any one of a Radio Frame (Radio Frame), a SubFrame (SubFrame), a Slot (Slot), a micro Slot (Mini-Slot), 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 start transmission position offset is a radio frame and a subframe.
In addition, the network side device may also indicate a time domain position of a transmission resource capable of carrying the first DCI in a window manner. I.e. defining a periodic time window, the time window parameters of which include: the period of the time window, the starting transmission position offset of the time window, and the length of the time window. The base station selects the appropriate time domain transmission unit in each time window to send the system message. The unit of the initial transmission position offset 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 Mini-Slot (Mini-Slot), an OFDM Symbol (OFDM Symbol), or a combination of several time units. For example, the unit of the period of the time window is a radio frame, the unit of the start transmission position offset of the time window is a radio frame and a subframe, and the unit of the length of the time window is a subframe.
In a specific 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 at least one first transmission resource, the method further includes:
And transmitting second indication information, wherein the second indication information is used for determining the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of carrying the first DCI by the mobile communication terminal.
In this way, the mobile communication terminal, after receiving the second indication information, 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 using the second indication information, without performing a search at each possible time domain position.
Wherein, optionally, the second indication information is a time window length or a maximum number M of repeated sending of the first DCI. Specifically, if the second indication information is a time window length 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 a time domain position of a transmission resource falling into the time window length from a system information change period start position is the time domain position of the at least one first transmission resource. If the second indication information is the maximum number M of repeated transmissions of the first DCI, the mobile communication terminal may determine, from among the time domain positions capable of carrying the transmission resources of the first DCI, M time domain positions before the start of the system information modification period as time domain positions of the at least one first transmission resource.
In other embodiments, the second indication information may also be RRC signaling information carrying a time window length or a maximum number M of repeated transmissions of the first DCI, or other system information carrying a time window length or a maximum number M of repeated transmissions of the first DCI. The invention is not limited in this regard.
In the 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, and the first system information may be at least one of changed system information and system information that is transmitted as needed, where the first system information may carry a time domain position for indicating a transmission resource for transmitting 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 access network side on the second transmission resource, the method further includes:
transmitting a second DCI on a third transmission resource, wherein 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 including the third transmission resource, which can carry the second DCI, is carried by the first system information;
And transmitting the second system information on the fourth transmission resource.
In this embodiment, the first system information carries a time domain position for indicating a third transmission resource or a time domain position of a transmission resource including the third transmission resource, where the transmission resource can carry the second DCI. In this way, after receiving the first system information, the mobile communication terminal may obtain the time domain position of the third transmission resource or the time domain position of the transmission resource including the third transmission resource and capable of carrying the second DCI, thereby receiving the second DCI indicating the fourth transmission resource on the third transmission resource and receiving the second system information on the fourth transmission resource.
In this way, after the network side device sends the first system information in a broadcast manner, it does not need to send the indication information for indicating the time domain position of the third transmission resource or the time domain position of the transmission resource capable of bearing the second DCI including the third transmission resource in a unicast manner, that is, through RRC signaling dedicated to 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 manner of the time domain position of the first transmission resource, and it should be noted that the determination manner of the time domain position of the second transmission resource is the same as the determination manner of the time domain position of the first transmission resource, and specific reference may be made to the above description, so that repetition is avoided.
The manner in which the frequency domain locations of the first transmission resources and the second transmission resources are determined is further described below.
In the 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 CORESET (Control Resource Set ) for the mobile communication terminal. Where CORESET may be less than or equal to the bandwidth of BWP, multiple CORESETs may be contiguous or non-contiguous.
Taking the network side device as an example of configuring BWP1 for the mobile communication terminal and configuring one CORESET1 in BWP1, the mobile communication terminal may receive DCI in CORESET1 in BWP1 and DL (Downlink) data in PDSCH in BWP1 and/or transmit UL (Uplink) data in PUSCH (Physical Uplink Shared Channel )/PUCCH (Physical Uplink Control Channel, physical Uplink control channel) in BWP 1.
In the embodiment of the present invention, the frequency domain position of the at least one first transmission resource may also be determined in a plurality of manners, and the following determination manners are described below:
in a first determination manner, optionally, the BWP where the at least one first transmission resource is located is a 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 that the frequency domain location of the at least first transmission resource for transmitting the first DCI is part of a frequency domain location of a control resource set CORESET of BWP to which the mobile communication terminal initially accesses, for example: the system may directly solidify the frequency domain location of the at least one first transmission resource in a communication protocol of 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 that the frequency domain location of the at least first transmission resource is part of the frequency domain location of the control resource set CORESET of the BWP initially accessed by the mobile communication terminal, and send and receive the first DCI at the frequency domain location, respectively. The frequency domain position of the first transmission resource is directly solidified in the communication protocol between the network side equipment and the mobile communication terminal, so that additional signaling is not needed, and the network signaling overhead can be reduced. However, when the BWP used by the mobile communication terminal for the current data transmission is not consistent with the BWP initially accessed, the mobile communication terminal of a small bandwidth may need to switch the BWP. While the mobile communication terminal requires a certain processing time during the BWP handover, and the mobile communication terminal needs to suspend the 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 determining manner, optionally, the BWP where the at least one first transmission resource is located is a BWP used by the mobile communication terminal for data transmission currently, that is, the frequency domain location of the first transmission resource is a part of the predefined frequency domain location of CORESET of the BWP used by the mobile communication terminal for data transmission currently.
In this embodiment, the system predefines the frequency domain location of the at least first transmission resource for transmitting the first DCI as part of the frequency domain locations of CORESET of BWP used by the mobile communication terminal for data transmission at the present time, for example: the system may directly solidify the frequency domain location of the at least one first transmission resource in a communication protocol of 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 that the frequency domain location of the at least first transmission resource is a part of the frequency domain location of CORESET of the BWP used by the mobile communication terminal for data transmission currently, and transmit and receive the first DCI at the frequency domain location, respectively. The frequency domain position of the first transmission resource is directly solidified in the communication protocol between the network side equipment and the mobile communication terminal, so that additional signaling is not needed, and the network signaling overhead can be reduced. Meanwhile, in comparison with the first determination mode, the second determination mode does not require a BWP handover, and thus, there is no loss in data transmission throughput of the mobile communication terminal.
Determining mode three, 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 pre-configure the BWP where the at least one first transmission resource is located through RRC signaling information, but is not limited to.
In this way, after receiving the RRC signaling information, the mobile communication terminal may acquire the frequency domain position of the at least one first transmission resource from the RRC signaling information, and 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 the mobile communication terminal receiving the first DCI. Different from the comparison scheme of determining the frequency domain position of the at least one first transmission resource in the first determination mode and the second determination mode through the predefined mode, the implementation scheme of determining the frequency domain position of the at least one first transmission resource configured by the network side device in the third determination mode can improve the flexibility of the frequency domain position configuration of the at least one first transmission resource although a certain network signaling overhead is possibly 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, namely 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 position of the second transmission resource in the target BWP.
In this embodiment, 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 at the same time, 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 a 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 BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
the first DCI carries: second information indicating a frequency domain location of the second transmission resource in the target BWP.
In this embodiment, the first DCI carries second information of a frequency domain location of the second transmission resource in the target BWP, and does not carry first information indicating the target BWP where the second transmission resource is located. Therefore, in order to acquire the frequency domain location 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 may be configured by the network side device.
Specifically, the target BWP where the second transmission resource is located may be a predefined BWP to which the mobile communication terminal initially accesses; or the target BWP where the second transmission resource is located may be a predefined BWP used by the mobile communication terminal for data transmission at present; 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, i.e. the second transmission resource is located in the same BWP as the first DCI; or the target BWP where the second transmission resource is located may be a BWP configured by the network side device, and in particular, 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, but is not limited to, include transmission time information of the first DCI, such as a slot where 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 the embodiment of the present invention.
The system information transmission method of the embodiment of the invention can be used for the following scenes:
the first scene, the network side finds that the system information changes, and the changed system information needs to be sent to the mobile communication terminal accessed to the network side.
Specifically, after determining that the system information is changed, the network side device sends first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource, and transmits the first system information on the second transmission resource, where the first system information is changed system information. Accordingly, after receiving the first DCI on the first transmission resource, the mobile communication terminal obtains a second transmission resource indicated by the first DCI, and receives the first system information on the second transmission resource. Thereby normalizing the transmission of system information in which the change occurs.
As shown in fig. 1b, the system information transmission method includes the steps of:
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, which is used for notifying the mobile communication terminal that the system information is changed, and the network side device sends time domain position information of the first transmission resource of the first DCI.
Step 203, the mobile communication terminal receives the indication information, and determines a time domain position of a first transmission resource of the first DCI transmitted by the network side device.
Step 204, the network side device sends a first DCI for indicating the 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 the second scenario is that the mobile communication terminal accessed to the network side needs certain system information based on certain requirements, a request is sent to the network side, and the network side transmits the system information based on the request of the mobile communication terminal in the mode.
Specifically, after receiving a system information request of a mobile communication terminal, the 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, where the first system information is required system information. Accordingly, after receiving the first DCI on the first transmission resource, the mobile communication terminal obtains a second transmission resource indicated by the first DCI, and receives the first system information on the second transmission resource. Thus normalizing the transmission of the required system information.
As shown in fig. 1c, the system information transmission method includes the steps of:
step 301, the mobile communication terminal sends a system information request to the network 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, which is used for notifying the network side device to send time domain location information of the first transmission resource of the first DCI.
Step 304, the mobile communication terminal determines a time domain position of a first transmission resource of the network device transmitting the first DCI.
Step 305, the network side device sends a first DCI for indicating the 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 invention, in order to improve the success rate and the time rate of the mobile communication terminal receiving the changed system information, the network side equipment can inform the mobile communication terminal that the system information is changed before sending the changed system information to the mobile communication terminal, and then send the changed system information, namely 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 third DCI or paging information, 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 the network side device determines that the system information needs to be changed, the network side device sends third indication information for indicating the change of the system information through third DCI or paging message, so that the mobile communication terminal is notified to receive the changed system information at the starting 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 one System Info Modification (system information modification) field in the paging message. The third indication information may be System Info Value Tag (system information value tag) field included in SIB1, and the value of System Info Value Tag may be increased by 1 each time the system information is changed. In this way, the mobile communication terminal can judge whether the system information is changed or not through the difference value between the value of the field received this time and the value of the field received last time, specifically, if the difference value is greater than zero, the mobile communication terminal can judge that the system information is changed, the currently stored system information is invalid, and the changed system information needs to be acquired 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 the new system information. In addition, in one system information change period, the network side device may transmit the system information changed multiple 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 the paging message, before the step of sending the third indication information, the method further includes:
when the system information is changed, the same identification is configured for at least two mobile communication terminals which 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 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 that the system information of the mobile communication terminal that has been accessed to the network side will be changed in the next system information change period.
In the existing LTE system, the time domain transmission resources of the paging message are determined by the mobile communication terminal according to its ISMI (International Mobile Subscriber Identity ) identity, and mobile communication terminals having different identities, the determined time domain transmission resources of the paging message are likely to be different. In particular, one embodiment is that firstly, a certain positive integer (for example 1024) is modulo according to an ISMI identifier of a mobile communication terminal to obtain an intermediate identifier, and then a time domain transmission resource of a paging message is determined according to the intermediate identifier. Obviously, in this embodiment, mobile communication terminals with different identities, the time domain transmission resources of the paging message determined by the mobile communication terminals are likely to be different.
Therefore, it is necessary to prevent and solve the problem that when there are a large number of mobile communication terminals on the accessed network side, the network side device needs to repeatedly send the same paging message on different time domain sending resources due to different identities of the mobile communication terminals on the accessed network side, resulting in large 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 may 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 only by sending one paging message carrying the third indication information. In one embodiment, the network side device configures a virtual identifier for the mobile communication terminal through RRC signaling, and is configured to calculate time domain transmission resources of the paging message. And the network side equipment configures the same virtual identifier for at least two mobile communication terminals through the implementation technology, so that the time domain transmission resources corresponding to the paging messages of the at least two mobile communication terminals are the same. Compared with the prior art that one paging message is sent for each mobile communication terminal, in the embodiment of the invention, one paging message can be sent for at least two mobile communication terminals, so that the network signaling overhead is reduced.
Of course, the network side device may not configure an 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. The real identifier of the mobile communication terminal is as follows: at least one of ISMI (international mobile subscriber identity), S-TMSI (temporary identification number generated and maintained by a mobility management entity), IMEI (permanent identification assigned by a device manufacturer), GUTI (dynamic identification assigned by a core network), or a function determined by at least one of these. In one embodiment, the mobile communication terminal calculates a time domain transmission resource of 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 id1=vid; otherwise, when the mobile communication terminal does not obtain a Virtual Identification (VID) configuration, the mobile communication terminal selects id1=aid, wherein 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 specifically includes:
When the system information is changed, transmitting third DCI carrying the third indication information on BWP used by the mobile communication terminal for data transmission at present; or (b)
When the system information is changed, fourth DCI for indicating fifth transmission resources is sent on BWP used by the mobile communication terminal for data transmission currently, and paging information carrying the third indication information is transmitted on the fifth transmission resources. In this embodiment, the third indication information is sent through the third DCI or the paging message on the BWP used by the mobile communication terminal for data transmission currently, so that the mobile communication terminal can receive the third indication information without switching the BWP, and further determine whether the system message is changed, thereby ensuring smoothness of service data transmission.
Optionally, the third indication information carries: third information indicating a BWP where the at least one first transmission resource is located, or fourth information indicating a 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 further 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 the mobile communication terminal receiving 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 access 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, fourth indication information is sent to the network side device to indicate a receiving result of the first system information. The fourth indication information may be SR (Scheduling Request, uplink scheduling request) information. The fourth indication information includes at least one of the following information: receiving all required system information; all the required system information is not received; the kind of system information that is additionally received is required.
Specifically, if the mobile communication terminal is able to receive the required system information in the frequency domain where the base station transmits the first system information, the fourth indication information may include receiving 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 also need to receive some additional system information, such as: the mobile communication terminal fails to detect some system information; and/or the base station only transmits part of the system information. The fourth indication information may include not receiving all of the required system information or the kind of system information that needs to be additionally received.
After the network side equipment receives the fourth indication information reported by the mobile communication terminal and determines the type of the system information which the mobile communication terminal needs to receive, the network side equipment can send the required system information to the mobile communication terminal through the broadcasted system information or the RRC signaling special for 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 in any of the above manners. The following description will be made with reference to specific embodiments.
It should be noted that, in each implementation manner provided in this embodiment, the network bandwidth is divided into BWP1, BWP2, BWP3, BWP4 and BWP5, which are illustrated by way of example, where BWP1 is a first BWP used by the UE1 for data transmission currently, 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 indicates an initial access procedure of UE1, and a solid line with an arrow indicates a handover procedure of UE 1; the vertical axis represents BWP, and BWP from top to bottom on the vertical axis is BWP1, BWP2, BWP3, BWP4 and BWP5, respectively. The horizontal axis represents a system information change period, the left part of the dotted line on the horizontal axis represents an nth system information change period for the UE to complete initial access, and the right part of the dotted line represents an n+1th system information change period for the UE to receive the first system information. Note that, in fig. 2 to 7, the number of transmission resources in the nth system information modification period and the n+1th system information modification period is merely an example, and in practical applications, the number of transmission resources in the nth system information modification period and the n+1th system information modification period are equal. Wherein N is a natural number greater than 1.
In addition, in fig. 2 to 7, the network side device repeatedly transmits the first system information twice in the n+1th system information change period, but the present invention is not limited to the number of times that the network side device repeatedly transmits the first system information in the n+1th system information change period, and may be specifically determined according to practical needs.
In a 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 used by the mobile communication terminal for data transmission currently, i.e. 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 the first BWP and transmits the first system information in the first BWP.
The frequency domain position of the first transmission resource may be predefined, configured by the network side device, or configured by the third indication information, where the first BWP is used by the mobile communication terminal for data transmission currently. 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, where the first BWP is used by the mobile communication terminal for data transmission. For the specific description, reference may be made to the description in the manner of determining the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and for avoiding repetition, a description is omitted here.
As shown in fig. 2, UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to the BWP1 for service 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 operating frequency point/bandwidth, so that the traffic data transmission throughput loss of the UE1 is not caused.
In the 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, i.e., 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 the 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, or may be configured by the network side device, or may be configured by the third indication information. The frequency domain position of the second transmission resource is indicated by the first DCI, may be predefined, or may be configured by the network side device by the second BWP to which the mobile communication terminal is initially connected. For the specific description, reference may be made to the description in the manner of determining the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and for avoiding repetition, a description is omitted here.
As shown in fig. 3, UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to the BWP1 for service data transmission. The first DCI is received from BWP1 to BWP3, and the service data transmission is interrupted when the system information is changed, and the first system information is received from BWP1 to BWP 3. After receiving all the first DCI or the first system information, the BWP3 is switched to BWP1 again, and the service data transmission is continued.
As shown in fig. 4, UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to the BWP1 for service data transmission. The switching from BWP1 to BWP3 receives the first DCI and performs the traffic data transmission, and when the system information is changed, the switching from BWP1 to BWP3 receives the first system information and performs the traffic data transmission without interrupting the traffic data transmission. After receiving all the first DCI or the first system information, the BWP3 is switched to BWP1 again, and the service data transmission is continued.
Note that this embodiment requires the UE to make 2 BWP handoffs. Since the data transmission needs to be interrupted at the moment of BWP handover, this embodiment causes at least a certain traffic data transmission throughput loss compared with the first embodiment.
However, since the base station always transmits the system message on the initial access BWP3, the UE can complete the system message update purpose by directly listening to the existing system message on the BWP 3. Compared with the mode of transmitting additional system messages on BWP1 in the first embodiment, the network resource overhead can be reduced in the first embodiment.
In summary, compared with the first embodiment, the present embodiment brings about a certain traffic data transmission throughput loss, but can reduce network resource overhead.
Further, in comparison between the two embodiments shown in fig. 3 and fig. 4, since in the embodiment shown in fig. 3, the UE does not perform traffic data transmission on BWP3, the traffic data transmission throughput loss caused by the method of fig. 3 is greater than that caused by the method of fig. 4. On the other hand, fig. 4 increases the network load of BWP 3. Therefore, the method shown in fig. 4 may not work properly when the network load on BWP3 is heavy. That is, the method shown in fig. 4 has a relatively limited application range, although the loss of throughput of traffic data transmission is small, compared with the method shown in fig. 3.
In the third embodiment, the frequency domain location of the first transmission resource is a first BWP used by the mobile communication terminal for data transmission, the frequency domain location of the second transmission resource is a second BWP initially accessed by the mobile communication terminal, that is, the BWP where the frequency domain location of the first transmission resource is the first BWP, and the BWP where the frequency domain location of the second transmission resource is the second BWP. The base station transmits the first DCI in the first BWP and transmits the first system information in the second BWP.
The frequency domain position of the first transmission resource may be predefined, configured by the network side device, or configured by the third indication information, where the first BWP is used by the mobile communication terminal for data transmission currently. 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, where the first BWP is used by the mobile communication terminal for data transmission. For the specific description, reference may be made to the description in the manner of determining the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and for avoiding repetition, a description is omitted here.
As shown in fig. 5, UE1 receives system information in BWP3, completing initial access. After the initial access is completed, the BWP3 is switched to the BWP1 for service data transmission. The first DCI is received directly in BWP1, and when the system information is changed, the transmission of the service data is interrupted, and the first system information is received from BWP1 to BWP 3. In this embodiment, the UE1 switches from BWP3 to BWP1 to continue the service data transmission after receiving one first system information, and then switches from BWP1 to BWP3 to receive the first system information, which is repeated until all the first system information is received, unlike fig. 3. Note that, in fig. 6, the first system information is repeated twice as an example, but the embodiment of the present invention is not limited thereto.
Therefore, unlike the embodiment corresponding to fig. 3, this embodiment can improve the smoothness of service data transmission and improve the user experience; unlike the corresponding implementation of fig. 4, this embodiment can 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, i.e., the BWP 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 BWP other than the first BWP used by the mobile communication terminal for data transmission currently and the second BWP initially accessed by the mobile communication terminal, among the plurality of BWP included in the network bandwidth. The base station transmits the first DCI in the 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 used by the mobile communication terminal to perform data transmission currently. 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, where the first BWP is used by the mobile communication terminal for data transmission. For the specific description, reference may be made to the description in the manner of determining the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and for avoiding repetition, a description is omitted here.
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 the BWP1 for service data transmission. The first DCI is received and data transmitted from BWP1 to BWP5, and the first system information is received and data transmitted from BWP1 to BWP5 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 location of the first transmission resource is a first BWP used by the mobile communication terminal for data transmission, the frequency domain location of the second transmission resource is a third BWP, that is, the BWP where the frequency domain location of the first transmission resource is the first BWP, and the BWP where the frequency domain location of the second transmission resource is the third BWP, where the third BWP is any BWP other than the first BWP used by the mobile communication terminal for data transmission among the plurality of BWP included in the network bandwidth, and in addition, 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, configured by the network side device, or configured by the third indication information, where the first BWP is used by the mobile communication terminal for data transmission currently. 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, where the first BWP is used by the mobile communication terminal to perform data transmission currently. For the specific description, reference may be made to the description in the manner of determining the frequency domain position of the first transmission resource and the frequency domain position of the second transmission resource, and for avoiding repetition, a description is omitted here.
In one embodiment of the present invention, the network side device may configure the third BWP as the second BWP to which the mobile communication terminal initially accesses, but the network side device may further configure transmission resources for the UE of the accessed network side to receive the first system information additionally, so that the density of transmission resources available to the UE of the accessed network side for receiving the first system information is greater than that available to the UE of the non-accessed network side. Therefore, the time for the UE on the accessed 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 is not connected to 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+1th system information change period, the UE1 has already accessed the network side device, so that the UE1 can receive the first system information in the second transmission resource of the BWP3 and the additionally configured transmission resource, thereby saving the time for the UE1 that has accessed 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 used in a mobile communication terminal, as shown in fig. 8, and includes:
step 801, first downlink control information DCI is received on at least one first transmission resource.
Step 802, determining a second transmission resource according to the first DCI.
Step 803, receiving, on the second transmission resource, the first system information sent by the 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
Optionally, 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 the at least one first transmission resource, further comprises: 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;
and determining 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.
Optionally, the second indication information is a time window length of repeatedly sending the first DCI, and the step of determining, by using the second indication information, 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 specifically includes: determining, from among 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 start position as the time domain position of the at least one first transmission resource; or alternatively, the process may be performed,
the step of determining 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 specifically includes: and determining M time domain positions from the time domain positions of the transmission resources capable of carrying the first DCI as the time domain positions of the at least one first transmission resource before the start position of the system information change period.
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.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
the first DCI carries: second information indicating a frequency domain location 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 (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
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 sent by the network side device through DCI signaling or paging message and indicating that the system information changes specifically includes:
receiving a third DCI carrying the third indication information on a BWP used by the mobile communication terminal for data transmission at present; or (b)
Receiving fourth DCI indicating fifth transmission resources on BWP used by the mobile communication terminal for data transmission, and receiving paging message indicating system information change on the fifth transmission resources.
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 a control resource set CORESET where 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 to indicate the receiving result of the first system information.
Note that this embodiment is an implementation manner of a mobile communication terminal corresponding to the above-described method embodiment, and therefore, reference may be made to the description related to the above-described method embodiment, and the same advantageous effects may be achieved. In order to avoid repetition of the description, a description thereof will be 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, as shown in fig. 9, a network device 900 includes:
a first transceiver 901 for transmitting first downlink control information DCI for indicating a second transmission resource on at least one first transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
Optionally, the time domain position of the transmission resource capable of carrying the first DCI is predefined; or (b)
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, first indication information, where the first indication information is used to indicate a time domain location of the transmission resource capable of carrying the first DCI.
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, second indication information, where the second indication information is used for the mobile communication terminal to determine a time domain location of the at least one first transmission resource from the time domain locations of the transmission resources that can carry the first DCI.
Optionally, the second indication information is a time window length or a maximum number M of repeated transmissions of the first DCI.
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 BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
the first DCI carries: second information indicating a frequency domain location 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 (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
Optionally, the first transceiver 901 is further configured to send, when the system information is changed, third indication information through a third DCI or a paging message before sending first downlink control information DCI for indicating the second transmission resource on at least one first transmission resource, 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 device 900 further includes: the first processor 902 is configured to configure the same identifier for at least two mobile communication terminals that need to receive the first system information when the system information is changed before sending the third indication information, so that the time domain sending resources corresponding to the 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 the system information is changed, transmitting third DCI carrying the third indication information on BWP used by the mobile communication terminal for data transmission at present; or (b)
When the system information is changed, fourth DCI for indicating fifth transmission resources is sent on BWP used by the mobile communication terminal for data transmission currently, and paging information carrying the third indication information is transmitted on the fifth transmission resources.
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 a control resource set CORESET where 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 the first system information that needs to be received by the mobile communication terminal that has accessed the network is transmitted on the second transmission resource, where the fourth indication information is used to indicate a result of receiving the first system information.
It should be noted that, in this embodiment, the network device 900 may be any network side device of any implementation manner in the method embodiment of the present invention, and any implementation manner of the base station in the method embodiment of the present invention may be implemented by the network device 900 in this embodiment, so that the same beneficial effects are achieved, which is not described herein again.
The embodiment of the invention also provides a mobile communication terminal. Fig. 11 shows a schematic diagram of a mobile communication terminal according to an embodiment of the present invention, and as shown in fig. 11, a mobile communication device 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
Optionally, the 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 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 capable of carrying 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 at least one first transmission resource;
the second processor 1102 is further configured to determine a time domain location of the at least one first transmission resource from the time domain locations of the transmission resources carrying the first DCI using the second indication information.
Optionally, the second indication information is a time window length of repeatedly sending the first DCI, and the second processor 1102 is specifically configured to: determining, from among 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 start position as the time domain position of the at least one first transmission resource; or alternatively, the process may be performed,
the second indication information is a maximum number M of repeated transmissions of the first DCI, and the second processor 1102 is specifically configured to: and determining M time domain positions from the time domain positions of the transmission resources capable of carrying the first DCI as the time domain positions of the at least one first transmission resource before the start position of the system information change period.
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.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
The first DCI carries: second information indicating a frequency domain location 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 (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
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 sent by the network side device through a third DCI or a paging message and indicating that system information is changed;
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 a BWP used by the mobile communication terminal for data transmission at present; or (b)
Receiving fourth DCI indicating fifth transmission resources on BWP used by the mobile communication terminal for data transmission, and receiving paging message indicating system information change on the fifth transmission resources.
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 a control resource set CORESET where 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, to indicate a receiving result of the first system information.
It should be noted that, in this embodiment, the mobile communication device 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 device 1100 in the embodiment of the present invention, and the same beneficial effects are achieved, which are not repeated herein.
Referring to fig. 12, the 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 labeled in the drawing), and a first computer program 12011 stored in the first memory 1201 and capable of running on the third processor 1202, and when the first computer program 12011 is executed by the third processor 1202, the following steps are implemented:
Transmitting first Downlink Control Information (DCI) for indicating a second transmission resource on at least one first transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
Optionally, the time domain location of the transmission resource that may carry the first DCI is predefined, or the first computer program 12011 when executed by the third processor 1202 may further implement the following steps:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of bearing the first DCI.
Optionally, the first computer program 12011 may further implement the following steps when executed by the third processor 1202:
and transmitting second indication information, wherein the second indication information is used for determining the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of carrying the first DCI by the mobile communication terminal.
Optionally, the second indication information is a time window length or a maximum number M of repeated transmissions of the first DCI.
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 BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
the first DCI carries: second information indicating a frequency domain location 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 (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
Optionally, the first computer program 12011 may further implement the following steps when executed by the third processor 1202:
when the system information is changed, sending third indication information through third DCI or paging information, 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 may further implement the following steps when executed by the third processor 1202:
when the system information is changed, the same identification is configured for at least two mobile communication terminals which 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 which need the first system information are the same.
Optionally, the first computer program 12011 may further implement the following steps when executed by the third processor 1202:
when the system information is changed, transmitting third DCI carrying the third indication information on BWP used by the mobile communication terminal for data transmission at present; or (b)
When the system information is changed, fourth DCI for indicating fifth transmission resources is sent on BWP used by the mobile communication terminal for data transmission currently, and paging information carrying the third indication information is transmitted on the fifth transmission resources.
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 a control resource set CORESET where the at least one first transmission resource is located.
Optionally, the first computer program 12011 may further implement the following steps when executed by the third processor 1202: 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 any network side device of 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 the embodiment of the present invention, and the same beneficial effects are achieved, which is not repeated herein.
The embodiment of the invention also provides a mobile communication terminal. Fig. 13 shows 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 labeled in the drawing), and a second computer program 13011 stored in the second memory 1301 and capable of running 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 modification period.
Optionally, the time domain location of the at least one first transmission resource is predefined.
Optionally, the time domain location of the transmission resource that may carry the first DCI is predefined, or the second computer program 13011 may further implement the following steps when executed by the fourth processor 1302:
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 may further implement the following steps when executed by the fourth processor 1302:
receiving second indication information;
and determining 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.
Optionally, the second indication information is a time window length of the repeated sending of the first DCI, and the second computer program 13011 when executed by the fourth processor 1302 may further implement the following steps: determining, from among 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 start position as the time domain position of the at least one first transmission resource; or alternatively, the process may be performed,
The second indication information is a maximum number M of repeated transmissions of the first DCI, 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 from the time domain positions of the transmission resources capable of carrying the first DCI as the time domain positions of the at least one first transmission resource before the start position of the system information change period.
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.
Optionally, the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
the first DCI carries: second information indicating a frequency domain location 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 (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
Optionally, the second computer program 13011 may further implement the following steps when executed by the fourth processor 1302:
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 may further implement the following steps when executed by the fourth processor 1302:
receiving a third DCI carrying the third indication information on a BWP used by the mobile communication terminal for data transmission at present; or (b)
Receiving fourth DCI indicating fifth transmission resources on BWP used by the mobile communication terminal for data transmission, and receiving paging message indicating system information change on the fifth transmission resources.
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 a control resource set CORESET where the at least one first transmission resource is located.
Optionally, the second computer program 13011 may further implement the following steps when executed by the fourth processor 1302:
and sending fourth indication information to indicate 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 of 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 the embodiment of the present invention, and the same beneficial effects are achieved, which is not repeated herein.
It will be appreciated by those of ordinary skill in the art that all or part of the steps of the method of the foregoing embodiment may be implemented by hardware related to program instructions, where the program may be stored in a computer readable medium, and when the program is executed by a processor, the method of transmitting system information in any of the foregoing method embodiments may be implemented, and the same technical effects may be achieved, so that repetition is avoided and redundant description is omitted herein.
Such as Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic or optical disk, etc.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (27)

1. A system information transmission method for a network side device, comprising:
transmitting first Downlink Control Information (DCI) for indicating a second transmission resource on at least one first transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification period.
2. The system information transmission method according to claim 1, wherein,
the time domain position of the transmission resource capable of bearing the first DCI is predefined; or (b)
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 comprises:
and sending first indication information, wherein the first indication information is used for indicating the time domain position of the transmission resource capable of bearing the first DCI.
3. The system information transmission method according to claim 2, further comprising, before the step of transmitting first downlink control information DCI indicating the second transmission resource on at least one first transmission resource:
and transmitting second indication information, wherein the second indication information is used for determining the time domain position of the at least one first transmission resource from the time domain positions of the transmission resources capable of carrying the first DCI by the mobile communication terminal.
4. The system information transmission method of claim 3, wherein the second indication information is a time window length or a maximum number M of repeated transmissions of the first DCI.
5. The system information transmission 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 system information transmission 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 BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
The first DCI carries: second information indicating a frequency domain location of the second transmission resource in the target BWP.
7. The system information transmission method according to claim 1, wherein the BWP on which the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
8. The system information transmission method according to claim 1, further comprising, before the step of transmitting first downlink control information DCI indicating the second transmission resource on at least one first transmission resource:
when the system information is changed, sending third indication information through third DCI or paging information, 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 system information transmission method according to claim 8, wherein when the third indication information is carried by a paging message, before the step of transmitting the third indication information, the method further comprises:
When the system information is changed, the same identification is configured for at least two mobile communication terminals which 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 which need the first system information are the same.
10. The system information transmission method according to claim 8, wherein the step of transmitting the third indication information through the third DCI or the paging message when the system information is changed specifically includes:
when the system information is changed, transmitting third DCI carrying the third indication information on BWP used by the mobile communication terminal for data transmission at present; or (b)
When the system information is changed, fourth DCI for indicating fifth transmission resources is sent on BWP used by the mobile communication terminal for data transmission currently, and paging information carrying the third indication information is transmitted on the fifth transmission resources.
11. The system information transmission method according to claim 8, wherein the third indication information carries:
third information indicating the BWP where the at least one first transmission resource is located, or
Fourth information indicating a control resource set CORESET where the at least one first transmission resource is located.
12. The system information transmission method according to claim 1, further comprising, after the step of transmitting the first system information that the mobile communication terminal having accessed the network needs to receive on the second transmission resource:
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 modification period.
14. The system information transmission method according to claim 13, wherein,
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 the at least one first transmission resource, further comprises:
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 system information transmission method according to claim 14, further comprising, prior to the step of receiving first downlink control information, DCI, on at least one first transmission resource:
receiving second indication information;
and determining 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.
16. The system information transmission method according to claim 15, wherein,
the step of determining 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 specifically includes: determining, from among 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 start position as the time domain position of the at least one first transmission resource; or alternatively, the process may be performed,
The step of determining 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 specifically includes: and determining M time domain positions from the time domain positions of the transmission resources capable of carrying the first DCI as the time domain positions of the at least one first transmission resource before the start position of the system information change period.
17. The system information transmission method according to claim 13, wherein 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.
18. The system information transmission method according to claim 13, wherein the target BWP where the second transmission resource is located is: BWP initially accessed by the mobile communication terminal; or BWP used by the mobile communication terminal for data transmission at present; or BWP where the at least one first transmission resource is located; or BWP configured by the network side equipment;
The first DCI carries: second information indicating a frequency domain location of the second transmission resource in the target BWP.
19. The system information transmission method according to claim 13, wherein the BWP on which the at least one first transmission resource is located is:
BWP initially accessed by the mobile communication terminal; or (b)
The mobile communication terminal currently performs BWP used for data transmission; or (b)
And the network side equipment configures BWP.
20. The system information transmission method according to claim 13, further comprising, prior to the step of receiving first downlink control information, DCI, on at least one first transmission resource:
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 system information transmission method according to claim 20, wherein the step of receiving third indication information sent by the network side device through DCI signaling or paging message and indicating that the system information is changed specifically includes:
receiving a third DCI carrying the third indication information on a BWP used by the mobile communication terminal for data transmission at present; or (b)
Receiving fourth DCI indicating fifth transmission resources on BWP used by the mobile communication terminal for data transmission, and receiving paging message indicating system information change on the fifth transmission resources.
22. The system information transmission method according to claim 20, wherein the third indication information carries:
third information indicating the BWP where the at least one first transmission resource is located, or
Fourth information indicating a control resource set CORESET where the at least one first transmission resource is located.
23. The system information transmission method 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 to indicate the receiving result of the first system information.
24. A network side device, comprising:
a transceiver for transmitting first downlink control information, DCI, on at least one first transmission resource for indicating a second transmission resource;
transmitting first system information which is required to be received by the mobile communication terminal which has accessed 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 modification 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 modification 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 the system information transmission method according to any one of claims 1 to 12 or the 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, characterized in that the computer program, when being executed by a processor, implements the system information transmission method according to any one of claims 1 to 12, or implements the system information transmission method according to any one of claims 13 to 23.
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