CN115086890B

CN115086890B - Information transmission method, device and system

Info

Publication number: CN115086890B
Application number: CN202110352707.9A
Authority: CN
Inventors: 邝奕如; 薛丽霞; 徐海博; 孔繁华
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-03-11
Filing date: 2021-03-31
Publication date: 2023-11-28
Anticipated expiration: 2041-03-31
Also published as: CN115086890A

Abstract

The application provides an information transmission method, device and system, which relate to the field of communication and can enable terminal equipment to timely acquire the latest information carried in system information downlink control information, reduce the probability of using wrong information by the terminal equipment and improve the service quality of users. The method comprises the following steps: the network equipment sends first information, and correspondingly, the terminal equipment receives the first information, wherein the first information is borne in system information downlink control information, and the system information downlink control information is scrambled downlink control information adopting a system information wireless network temporary identifier; and then, the network equipment sends second information, and correspondingly, the terminal equipment receives the second information, wherein the second information is used for indicating the first information to be changed.

Description

Information transmission method, device and system

The present application claims priority from the national intellectual property agency, application number 202110268117.8, application name "a communication method, terminal and network device," filed on 11/03/2021, the entire contents of which are incorporated herein by reference.

Technical Field

The present application relates to the field of communications, and in particular, to a method, an apparatus, and a system for transmitting information.

Background

As the fifth generation (5th generation,5G) new wireless (NR) systems evolve, low capability (reduced capability, REDCAP or REDCAP) terminals are introduced. The REDCAP terminal has lower air interface capability, e.g., supports smaller bandwidth, lower modulation order, has fewer antennas, etc.

Currently, for a REDCAP terminal, the network device may indicate in the system information whether the REDCAP terminal is allowed to camp on the current cell. Further, it may also indicate in the system information whether the cell of the current highest rank (high rank) is barred from camping, or when it is barred, whether the REDCAP terminal is allowed to select other cells with the same frequency as the barred cell when selecting or reselecting the cell. For example, an indication field may be added to the system information downlink control information (downlink control information, DCI) for cell barring indication and/or common frequency selection or reselection barring indication. The system information DCI is a DCI scrambled by using a system information radio network temporary identifier (radio network temporary identity, RNTI).

In case the network device makes a cell barring indication and/or a co-channel selection or reselection barring indication, the indication may change.

Disclosure of Invention

The application provides an information transmission method, device and system, which can enable terminal equipment to timely acquire the latest cell inhibition information and/or common frequency selection information, reduce the probability of using wrong cell inhibition information and/or common frequency selection information by the terminal equipment, and improve the service quality of users.

In order to achieve the above purpose, the application adopts the following technical scheme:

in a first aspect, an information transmission method is provided, which may be performed by a terminal device, or may be performed by a component of the terminal device, for example, a processor, a chip, or a chip system of the terminal device, or may be implemented by a logic module or software capable of implementing all or part of functions of the terminal device, where the application is described by taking a terminal performing the method as an example. The method comprises the following steps: the terminal equipment receives first information, wherein the first information is used for indicating cell forbidden information and/or common frequency selection information of the first type of terminal equipment; the terminal equipment receives second information, wherein the second information is used for indicating the first information to be changed.

Based on the scheme, under the condition that the cell inhibition information and/or the same-frequency selection information of the first type terminal equipment are changed, the network equipment can indicate the change through the second information, so that the terminal equipment can acquire new cell inhibition information and/or the same-frequency selection information according to the second information, further, the first type terminal equipment can accurately understand the configuration of the current network equipment, the probability that the first type terminal equipment uses the wrong cell inhibition information and/or the wrong same-frequency selection information is reduced, and the service quality of the first type terminal equipment is improved.

In a second aspect, an information transmission method is provided, where the method may be performed by a network device, or may be performed by a component of the network device, for example, a processor, a chip, or a chip system of the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device, and the application is illustrated by taking a terminal to perform the method as an example. The method comprises the following steps: the network equipment sends first information which is used for indicating cell forbidden information and/or common frequency selection information of the first type of terminal equipment; the network device transmits second information indicating that the first information is changed. The technical effects of the second aspect may be referred to the technical effects of the first aspect, and will not be described herein.

With reference to the second aspect, in certain embodiments of the second aspect, the method further comprises: generating first information by a first functional entity of the network equipment; the first functional entity of the network device sends the first information to the second functional entity of the network device.

Based on the embodiment, the second functional entity of the network device may obtain the cell barring information and/or the on-channel selection information of the first type of terminal device, so as to perform subsequent configuration or control according to the cell barring information and/or the on-channel selection information of the first type of terminal device.

With reference to the first aspect or the second aspect, in certain implementation manners of the first aspect or the second aspect, the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled with a system information radio network temporary identifier.

Based on the embodiment, the network device can notify the change of the cell inhibition information and/or the same-frequency selection information of the first type terminal device carried in the system information downlink control information.

With reference to the first aspect or the second aspect, in certain implementations of the first aspect or the second aspect, the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred.

Based on the embodiment, the terminal equipment can determine whether to reside in the current cell or not according to the cell inhibition information, or whether to select or reselect the same-frequency cell or not when the highest-level cell is inhibited, so that the terminal equipment selects a proper cell to reside in, and the network is accessed in the proper cell, thereby improving the success rate of accessing the network of the terminal equipment.

With reference to the first aspect or the second aspect, in certain implementation manners of the first aspect or the second aspect, the second information is carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled by using a paging wireless network temporary identifier; alternatively, the second information is carried in a paging message.

Based on this embodiment, the terminal device may be notified that the first information is changed by paging the terminal device by the network device. In addition, the second information is carried in the paging message, so that the modification to the existing standard, such as the content of the paging downlink control information is not modified, can be reduced, and the standard compatibility can be better realized. Furthermore, the paging message has sufficient available bits, and does not need to occupy only a few reserved bits in the paging downlink control information, so that the expandability of the paging downlink control information is not affected.

With reference to the first aspect or the second aspect, in certain implementation manners of the first aspect or the second aspect, the second information is carried in paging downlink control information, including: the second information is carried in a short message field included in the paging downlink control information.

Based on the embodiment, the short message field is used for notifying the first information of the change, so that the influence on the process of re-acquiring the system information when the existing system information is changed is small, and the implementation complexity of the terminal equipment can be reduced.

With reference to the first aspect or the second aspect, in certain implementation manners of the first aspect or the second aspect, the second information is carried in a short message field included in the paging downlink control information, including: the second information is carried in a system information change field in the short message field; the method further comprises the steps of: the network device sends third information, and the terminal device receives the third information, where the third information is used to indicate cell inhibition information and/or co-channel selection information of the first type of terminal device.

Based on the embodiment, the second information is carried in the system information change field, so that the existing standard is slightly changed, and the compatibility of the standard can be better realized.

With reference to the first aspect or the second aspect, in some implementations of the first aspect or the second aspect, in a case where the first information is used to indicate cell barring information of the first type of terminal device, the second information is used to indicate that the first information is changed, including: the second information is used for indicating that the cell prohibition information of the first type terminal device is changed from that the first type terminal device is not prohibited in the current cell to that the first type terminal device is prohibited in the current cell.

Based on the embodiment, before the first information is changed, the first type terminal equipment is not forbidden in the current cell, so that the first type terminal can reside in the current cell, and then access the network through the current cell when the service needs to be initiated. After that, when the first type terminal equipment is forbidden in the current cell, the network equipment sends the second information to inform that the first type terminal equipment is forbidden to reside in the current cell, so that the situation that the first type terminal equipment which has already resided in the current cell continuously uses the cell forbidden information before changing, and the current cell is mistakenly considered to allow to reside is avoided, and the operation of accessing the current cell is still executed when the service needs to be initiated. That is, after the first type terminal device receives the second information, the first type terminal device does not continue to access the network in the current cell, so that the power consumption of the terminal device can be reduced. In addition, after the terminal equipment receives the second information, the terminal equipment knows that the current cell is forbidden, so that other cells can be selected to reside, and when the service needs to be initiated, the network is accessed through the other cells.

With reference to the first aspect or the second aspect, in certain implementations of the first aspect or the second aspect, the first type of terminal device is a low capability REDCAP terminal.

In a third aspect, an information transmission method is provided, which may be performed by a terminal device, or may be performed by a component of the terminal device, for example, a processor, a chip, or a chip system of the terminal device, or may be implemented by a logic module or software capable of implementing all or part of functions of the terminal device, where the method is described by taking a terminal as an example. The method comprises the following steps: the terminal equipment receives first information, wherein the first information is borne in system information downlink control information, and the system information downlink control information is scrambled by adopting a system information wireless network temporary identifier; the terminal equipment receives second information, wherein the second information is used for indicating the first information to be changed.

Based on the scheme, when the information carried in the system information downlink control information is changed, the network equipment can indicate the information to be changed through the second information, so that the terminal equipment can acquire the system information downlink control information again according to the second information to acquire updated information, and further, the correct understanding of the first type terminal equipment on the current network equipment configuration is realized.

In a fourth aspect, an information transmission method is provided, where the method may be performed by a network device, or may be performed by a component of the network device, for example, a processor, a chip, or a chip system of the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device, and the application is illustrated by taking a terminal to perform the method as an example. The method comprises the following steps: the network equipment sends first information, wherein the first information is borne in system information downlink control information, and the system information downlink control information is scrambled by adopting a system information wireless network temporary identifier; the network device sends second information, which is used to indicate the first information to change. The technical effects of the fourth aspect may refer to the technical effects of the third aspect, and are not described herein.

With reference to the third aspect or the fourth aspect, in certain implementations of the third aspect or the fourth aspect, the first information is used to indicate cell barring information and/or co-channel selection information of the first type of terminal device.

With reference to the third aspect or the fourth aspect, in certain implementations of the third aspect or the fourth aspect, the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred.

Based on the implementation manner, the network device can inform the first type of terminal device that the cell inhibition information and/or the same-frequency selection information are changed, so that the terminal device selects a proper cell to reside.

With reference to the third aspect or the fourth aspect, in some implementations of the third aspect or the fourth aspect, in a case where the first information is used to indicate cell barring information of the first type of terminal device, the second information is used to indicate that the first information is changed, including: the second information is used for indicating that the cell prohibition information of the first type terminal device is changed from that the first type terminal device is not prohibited in the current cell to that the first type terminal device is prohibited in the current cell. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the third aspect or the fourth aspect, in some implementations of the third aspect or the fourth aspect, the second information is carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled with a paging radio network temporary identifier; alternatively, the second information is carried in a paging message. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the third aspect or the fourth aspect, in some implementations of the third aspect or the fourth aspect, the second information is carried in paging downlink control information, including: the second information is carried in a short message field included in the paging downlink control information. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the third aspect or the fourth aspect, in some implementations of the third aspect or the fourth aspect, the second information is carried in a short message field included in the paging downlink control information, including: the second information is carried in a system information change field in the short message field; the method further comprises the steps of: the network equipment sends third information, the terminal equipment receives the third information, and the third information is borne in the system information downlink control information. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the third aspect or the fourth aspect, in certain implementations of the third aspect or the fourth aspect, the first type of terminal device is a low capability refcap terminal.

In a fifth aspect, an information transmission method is provided, which may be performed by a terminal device, or may be performed by a component of the terminal device, for example, a processor, a chip, or a chip system of the terminal device, or may be implemented by a logic module or software capable of implementing all or part of functions of the terminal device, where the present application is described by taking a terminal performing the method as an example. The method comprises the following steps: the terminal equipment receives first information in a first cell, wherein the first information is borne in system information downlink control information, the system information downlink control information is downlink control information scrambled by adopting a system information wireless network temporary identifier, and the first information is used for indicating first cell inhibition information and/or first common frequency selection information of first type terminal equipment; the terminal device receives second information in the first cell, wherein the second information is used for indicating second cell prohibition information and/or second co-channel selection information of the first type terminal device.

Based on the scheme, under the condition that the terminal equipment acquires the first cell inhibition information and/or the first common frequency selection information of the first type terminal equipment, the terminal equipment can acquire the second cell inhibition information and/or the second common frequency selection information of the first type terminal equipment.

With reference to the fifth aspect, in certain implementation manners of the fifth aspect, the second information is carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled by using a paging radio network temporary identifier; alternatively, the second information is carried in a paging message.

Based on the embodiment, under the condition that the paging downlink control information carries the second information, the first type terminal equipment which is already resident in the current cell can immediately acquire the new cell inhibition information and/or the same frequency selection information after receiving the paging downlink control information, the system information downlink control information does not need to be acquired first, and then the new cell inhibition information and/or the same frequency selection information are acquired from the system information downlink control information, so that the time delay of acquiring the new cell inhibition information and/or the same frequency selection information by the first type terminal equipment which is already resident in the current cell is reduced. In the case that the second information is carried in the paging message, modification to the existing standard, for example, no modification to the content of the paging downlink control information, can be reduced, so that standard compatibility can be better achieved.

In a sixth aspect, an information transmission method is provided, where the method may be performed by a network device, or may be performed by a component of the network device, for example, a processor, a chip, or a chip system of the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device, and the application is illustrated by taking a terminal to perform the method as an example. The method comprises the following steps:

The network equipment sends first information in a first cell, wherein the first information is borne in system information downlink control information, the system information downlink control information is downlink control information scrambled by adopting a system information wireless network temporary identifier, and the first information is used for indicating first cell inhibition information and/or first common frequency selection information of first type terminal equipment; the network equipment sends second information in the first cell, wherein the second information is used for indicating second cell forbidden information and/or second same-frequency selection information of the first type terminal equipment, the second information is loaded in paging downlink control information, and the paging downlink control information is downlink control information scrambled by adopting a paging wireless network temporary identifier; alternatively, the second information is carried in a paging message. The technical effects of the sixth aspect may refer to the technical effects of the fifth aspect, and are not described herein.

With reference to the sixth aspect, in certain embodiments of the sixth aspect, the method further comprises: generating first information by a first functional entity of the network equipment and sending the first information to a second functional entity of the network equipment; the first functional entity of the network device generates second information and sends the second information to the second functional entity of the network device. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the fifth aspect or the sixth aspect, in some implementations of the fifth aspect or the sixth aspect, the second information is carried in paging downlink control information, including: the second information is carried in a short message field included in the paging downlink control information. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the fifth aspect or the sixth aspect, in certain implementation manners of the fifth aspect or the sixth aspect, the first cell inhibition information and the second cell inhibition information are different, and the first common frequency selection information and the second common frequency selection information are different.

Based on the embodiment, the terminal equipment can acquire the latest cell inhibition information and/or the same frequency selection information, and in addition, compared with the situation that the first cell inhibition information is the same as the second cell inhibition information, the first same frequency selection information is the same as the second same frequency selection information, so that the power consumption of the terminal equipment for acquiring the same information can be reduced.

With reference to the fifth or sixth aspect, in certain implementations of the fifth or sixth aspect, the cell barring information indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information indicates whether the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the fifth or sixth aspect, in certain implementations of the fifth or sixth aspect, the first type of terminal device is a low capability refcap terminal.

In a seventh aspect, an information transmission method is provided, which may be performed by a terminal device, or may be performed by a component of the terminal device, for example, a processor, a chip, or a chip system of the terminal device, or may be implemented by a logic module or software capable of implementing all or part of functions of the terminal device, where the present application is described by taking a terminal performing the method as an example. The method comprises the following steps: the terminal equipment determines a first period; the terminal equipment acquires third information according to the first period, wherein the third information is used for indicating cell inhibition information and/or common frequency selection information of the first type terminal equipment.

Based on the scheme, on one hand, the terminal equipment periodically acquires third information according to the first period, and under the condition that the cell forbidden information and/or the same frequency selection information of the first type of terminal equipment are changed, the terminal equipment can acquire the changed information, so that the terminal equipment can correctly understand the configuration of the current network equipment. On the other hand, no additional information is needed to inform the change or additionally send the changed cell inhibition information and/or the same frequency selection information, so that the signaling overhead can be reduced.

With reference to the seventh aspect, in certain implementations of the seventh aspect, the third information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled with a system information radio network temporary identifier.

Based on the embodiment, the terminal device may periodically acquire the cell inhibition information and/or the co-channel selection information carried in the system information downlink control information.

In an eighth aspect, an information transmission method is provided, where the method may be performed by a network device, or may be performed by a component of the network device, for example, a processor, a chip, or a chip system of the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device, and the application is described by taking a terminal to perform the method as an example. The method comprises the following steps: the network equipment determines a first period; the network equipment sends first information in the current first period, wherein the first information is used for indicating first cell inhibition information and/or first common frequency selection information of first type terminal equipment; the network device sends second information in a first period after the current first period, wherein the second information is used for indicating second cell inhibition information and/or second co-channel selection information of the first type terminal device.

Based on the scheme, the application provides the first period, on one hand, the network equipment changes the cell inhibition information and/or the same-frequency selection information according to the first period, so that the terminal equipment acquires the cell inhibition information and/or the same-frequency selection information of the first type of terminal equipment according to the first period, and the terminal equipment can acquire the latest cell inhibition information and/or the same-frequency selection information in time. On the other hand, no additional information is needed to inform the change or additionally send the changed cell inhibition information and/or the same frequency selection information, so that the signaling overhead can be reduced.

With reference to the eighth aspect, in certain implementations of the eighth aspect, the first information or the second information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled with a system information radio network temporary identifier. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the seventh aspect or the eighth aspect, in certain implementations of the seventh or the eighth aspect, the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

With reference to the seventh aspect or the eighth aspect, in certain implementations of the seventh aspect or the eighth aspect, the first period is a modification period of the system information; alternatively, the first period is larger than the change period of the system information.

Based on the embodiment, when the first period is larger than the change period of the system information, the frequency of the terminal equipment for acquiring the cell inhibition information and/or the same-frequency selection information is reduced, so that the power consumption of the terminal equipment is saved.

With reference to the seventh aspect or the eighth aspect, in certain implementations of the seventh aspect or the eighth aspect, the first type of terminal is a low capability refcap terminal.

In a ninth aspect, an information transmission method is provided, where the method may be performed by a network device, or may be performed by a component of the network device, for example, a processor, a chip, or a chip system of the network device, or may be implemented by a logic module or software that can implement all or part of the functions of the network device, and the application is illustrated by taking a terminal to perform the method as an example. The method comprises the following steps: the first functional entity of the network equipment determines first information, wherein the first information is used for indicating cell forbidden information and/or common frequency selection information of the first type of terminal equipment; the first functional entity of the network device sends the first information to the second functional entity of the network device.

Based on the scheme, the second functional entity of the network device can obtain the cell inhibition information and/or the same-frequency selection information of the first type of terminal device, so as to perform subsequent configuration or control according to the cell inhibition information and/or the same-frequency selection information of the first type of terminal device.

With reference to the ninth aspect, in certain implementations of the ninth aspect, the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred. The technical effects of this embodiment may refer to the technical effects of similar embodiments in the first aspect or the second aspect, and will not be described herein.

In a tenth aspect, a communication device is provided for implementing the various methods described above. The communication means may be the terminal device of the first aspect or the third aspect or the fifth aspect or the seventh aspect, or an apparatus comprising the terminal device, or an apparatus comprised in the terminal device, such as a chip; alternatively, the communication means may be the network device of the second or fourth or sixth or eighth or ninth aspect described above, or an apparatus comprising the network device described above, or an apparatus, such as a chip, comprised in the network device described above. The communication device comprises corresponding modules, units or means (means) for realizing the method, and the modules, units or means can be realized by hardware, software or realized by executing corresponding software by hardware. The hardware or software includes one or more modules or units corresponding to the functions described above.

In some possible designs, the communication device may include a transceiver module. The transceiver module, which may also be referred to as a transceiver unit, is configured to implement the transmitting and/or receiving functions of any of the above aspects and any possible implementation thereof. The transceiver module may be formed by a transceiver circuit, transceiver or communication interface.

In some possible designs, the transceiver module includes a transmitting module and a receiving module for implementing the transmitting and receiving functions in any of the above aspects and any possible implementation thereof, respectively.

In an eleventh aspect, there is provided a communication apparatus comprising: a processor and a memory; the memory is configured to store computer instructions that, when executed by the processor, cause the communication device to perform the method of any of the above aspects. The communication means may be the terminal device of the first aspect or the third aspect or the fifth aspect or the seventh aspect, or an apparatus comprising the terminal device, or an apparatus comprised in the terminal device, such as a chip; alternatively, the communication means may be the network device of the second or fourth or sixth or eighth or ninth aspect described above, or an apparatus comprising the network device described above, or an apparatus, such as a chip, comprised in the network device described above.

In a twelfth aspect, there is provided a communication apparatus comprising: a processor and a communication interface; the communication interface is used for communicating with a module outside the communication device; the processor is configured to execute a computer program or instructions to cause the communication device to perform the method of any of the above aspects. The communication means may be the terminal device of the first aspect or the third aspect or the fifth aspect or the seventh aspect, or an apparatus comprising the terminal device, or an apparatus comprised in the terminal device, such as a chip; alternatively, the communication means may be the network device of the second or fourth or sixth or eighth or ninth aspect described above, or an apparatus comprising the network device described above, or an apparatus, such as a chip, comprised in the network device described above.

In a thirteenth aspect, there is provided a communication device comprising: at least one processor; the processor is configured to execute a computer program or instructions stored in the memory to cause the communication device to perform the method of any of the above aspects. The memory may be coupled to the processor or may be separate from the processor. The communication means may be the terminal device of the first aspect or the third aspect or the fifth aspect or the seventh aspect, or an apparatus comprising the terminal device, or an apparatus comprised in the terminal device, such as a chip; alternatively, the communication means may be the network device of the second or fourth or sixth or eighth or ninth aspect described above, or an apparatus comprising the network device described above, or an apparatus, such as a chip, comprised in the network device described above.

In a fourteenth aspect, there is provided a computer readable storage medium having instructions stored therein which, when run on a communications device, cause the communications device to perform the method of any of the above aspects.

In a fifteenth aspect, there is provided a computer program product comprising instructions which, when run on a communications apparatus, cause the communications apparatus to perform the method of any of the preceding aspects.

In a sixteenth aspect, there is provided a communications device (e.g. which may be a chip or a system of chips) comprising a processor for carrying out the functions referred to in any of the above aspects.

In some possible designs, the communication device includes a memory for holding necessary program instructions and data.

In some possible designs, the device may be a system-on-chip, may be formed from a chip, or may include a chip and other discrete devices.

It is to be understood that when the communication device provided in any one of the tenth to sixteenth aspects is a chip, the above-described transmitting action/function may be understood as outputting information, and the above-described receiving action/function may be understood as inputting information.

The technical effects of any one of the design manners of the tenth aspect to the sixteenth aspect may be referred to the technical effects of the different design manners of the first aspect to the ninth aspect, and are not described herein.

A seventeenth aspect provides a communication system comprising the network device and the terminal device of the above aspects.

Drawings

Fig. 1 is a schematic diagram of a paging cycle according to the present application;

fig. 2 is a schematic structural diagram of a communication system according to the present application;

fig. 3a is a diagram of a user plane protocol stack of a network device according to the present application;

fig. 3b is a control plane protocol stack structure diagram of a network device according to the present application;

fig. 4 is a schematic structural diagram of a terminal device and a network device provided by the present application;

fig. 5a is a schematic flow chart of an information transmission method provided by the present application;

fig. 5b is a schematic flow chart of an information transmission method provided by the present application;

fig. 6 is a schematic flow chart of an information transmission method provided by the application;

fig. 7 is a schematic flow chart of an information transmission method provided by the present application;

FIG. 8a is a timing diagram of an information transmission according to the present application;

FIG. 8b is a timing diagram of an information transmission according to the present application;

fig. 9 is a schematic flow chart of an information transmission method provided by the application;

fig. 10 is a schematic structural diagram of a terminal device according to the present application;

fig. 11 is a schematic structural diagram of a network device according to the present application;

fig. 12 is a schematic structural diagram of a communication device according to the present application.

Detailed Description

In order to facilitate understanding of the technical solutions of the embodiments of the present application, a brief description of the related art of the present application is given below.

1. System information:

the system information is cell level information that the network device periodically broadcasts on a broadcast control channel (broadcast control channel, BCCH). After the terminal searches the cell and completes the downlink synchronization with the cell, the terminal needs to acquire the system information of the cell so as to access the cell and work correctly in the cell.

Currently, the system information of 5G NR includes a master information block (master information block, MIB) and a plurality of system information blocks (system information blocks, SIBs).

The MIB includes some necessary physical layer information, cell forbidden state information, and common frequency reselection information.

Illustratively, the MIB may include the following information:

System frame number: carried by the systemFrameNumber field, is used for synchronization of the terminal device and the network side.

The physical downlink control channel (physical downlink control channel, PDCCH) configuration of the scheduling SIB1 is carried by a PDCCH-ConfigSIB1 field, indicating a control-resource set (core) 0 and search space configuration information of the DCI of the scheduling SIB 1.

Cell barring indication: and the bearer is carried by a cellBarred field and is used for indicating whether the terminal is allowed to reside in the current cell. For example, when the cell prohibit indication is "cell prohibit", it indicates that the terminal is not allowed to reside in the current cell, i.e., the terminal cannot access the network from the current cell; when the cell prohibition indication is "cell not prohibited", the indication allows the terminal to reside in the current cell, i.e. the terminal can access the network from the current cell when it needs to initiate a service.

Co-channel reselection indication: and (3) carrying through an intraFreqReselection field to indicate whether the terminal is allowed to select or reselect other cells with the same frequency when the cell with the highest level is forbidden. For example, when the on-channel reselection is indicated as "on-channel reselection permission", the terminal is permitted to select or reselect other cells of the same frequency when the cell indicating the highest level is prohibited; when the on-channel reselection indicates "on-channel reselection is not allowed", the terminal is not allowed to select or reselect other cells on the same frequency when the cell indicating the highest level is forbidden.

It should be noted that, the present application only enumerates the information related to the present application included in the MIB, and actually, the MIB may further include other information, for example, subcarrier spacing, subcarrier offset, demodulation reference signal (demodulation reference signal, DMRS) location information, etc., which are not described herein in detail with reference to related descriptions in the standard.

Wherein the SIB currently comprises 14 system information blocks of SIB1-SIB14, and more SIBs may be introduced in the future. SIB6, SIB7, SIB8 are used for emergency alert notification. The emergency alert notifications include earthquake and tsunami warning system (earthquake and tsunami warning system, ETWS) notifications and/or commercial mobile alert service (commercial mobile alert service, CMAS) notifications. The ETWS includes an ETWS primary notification carried on SIB6 and/or an ETWS secondary notification carried on SIB 7; CMAS is carried over SIB 8.

After the terminal moves to a certain cell, firstly, the MIB of the cell is obtained, the MIB indicates the resource position of DCI for scheduling SIB1, the terminal can further obtain SIB1, the SIB1 indicates the resource position for receiving other SIB, and further other SIB (such as SIB2-SIB 14) can be obtained.

When the system information of the cell is changed, the terminal needs to acquire the changed system information again so as to work normally. In addition to the emergency alert notification (SIB 6, SIB7, SIB 8), other system information is changed according to a change period, and the change period is configured in SIB 1. In a change period, the content of the system information broadcast by the network equipment is the same; when the network device determines to change the system information, the network device notifies the terminal that the system information is changed through Paging (Paging) downlink control information (i.e., paging DCI) in the current change period or in the next change period of the current change period, then changes the content of the system information broadcasted by the network device in the next change period of notifying the change, and simultaneously the terminal reacquires the changed system information in the next change period of notifying the change according to the indication in the Paging DCI.

Among other things, paging DCI may refer to DCI scrambled with a paging radio network temporary identity (radio network temporary identity, RNTI).

The change period does not affect the period of broadcasting system information by the network device. In general, the modification period is larger than the broadcasting period of the system information. For example, the broadcast period of the system information is 5ms, i.e., the network device broadcasts the system information once every 5 ms. The change period is 10ms, and the network device broadcasts the system information twice in total within 10ms, which is one change period, and the content of the two broadcasted system information is the same. If the network device determines to change the system information in the current change period, it broadcasts the changed system information every 5ms in the next 10 ms.

2. Paging downlink control information:

in the third generation partnership project (3rd generation partnership project,3GPP) technical index (technical specification, TS) 38.331 (i.e., 3gpp TS 38.331), paging DCI (i.e., paging DCI) is used to schedule paging messages and/or indicate system information changes. The paging message is a radio resource control (radio resource control, RRC) message carried on a physical downlink shared channel (physical downlink shared channel, PDSCH) and is used to send a call request to a terminal in an RRC idle state, and inform the terminal of random access.

Wherein, the paging DCI includes the following partial fields:

short message indication (short messages indicator) field: the size is 2 bits (bit) and the content is defined in table 1 below. Wherein, the state '00' is reserved and not used, namely, when the short message indicates '00', the state is invalid.

TABLE 1

Short message (short message) field: the size is 8bits and the content definition is given in Table 2 below. If the above-mentioned short message indication field indicates that the DCI includes scheduling information of a paging message and does not include a short message, the field is invalid (reserved).

In the embodiment of the present application, the field invalidation refers to that the field does not carry information, or the terminal or the network device does not parse the field, which is generally described herein, and the following embodiments are not repeated.

TABLE 2

When the 1 st bit of the short message field has a value of "1", it indicates that the system information carried in the BCCH is modified, which can be also understood as: indicating that other system information than SIB6, SIB7 and SIB8 is updated, but the bit cannot indicate which system information the updated system information is specifically; when the value of the 2 nd bit of the short message content field is "1", it indicates that there is ETWS and/or CMAS information, which can also be understood as: indicating that one or more of SIB6, SIB7 and SIB8 are updated, as well as the bit being unable to indicate which SIBs of SIB6, SIB7, SIB8 are specifically.

Frequency domain resource allocation (frequency domain resource assignment) field: the size is determined according to the maximum number of frequency domain resources, for example, the size can satisfy the formula:wherein (1)>The maximum number of resources in the frequency domain or the number of resources in the frequency domain which can be allocated. If the short message indication field indicates that the DCI does not include the scheduling information of the paging message, the field is invalid.

Time domain resource allocation (time domain resource assignment) field: the size is 4bits. If the short message indication field indicates that the DCI does not include the scheduling information of the paging message, the field is invalid.

Mapping of virtual resource blocks to physical resource blocks (virtual resource block (VRB) -to-Physical Resource Blocks (PRB) mapping).

Modulation coding scheme (modulation and coding scheme) field: the size is 5bits. If the short message indication field indicates that the DCI does not include the scheduling information of the paging message, the field is invalid.

Transport block scaling (TB) field: the size is 2bits. If the short message indication field indicates that the DCI does not include the scheduling information of the paging message, the field is invalid.

Reserved bits: the size is 6bits.

It can be understood that after the short message field in the paging DCI indicates that the system information is changed, since the field cannot indicate which system information is specifically updated, the terminal device that receives the paging DCI receives the MIB again, receives SIB1 according to the MIB, and further receives other SIBs according to SIB1, thereby determining the changed system information.

The field included in the paging downlink control information is defined in 3gpp TS 38.212, and the content of the short message field included in the paging downlink control information, that is, the content shown in table 2, is defined in 3gpp TS 38.331.

3. Paging Occasion (PO):

the terminal may periodically receive the paging DCI, where the period is a paging period. The moment when the terminal specifically receives the DCI is called paging occasion, and is determined by the network device and configured to the terminal.

For example, as shown in fig. 1, a paging cycle may include a plurality of Paging Frames (PFs), each paging frame including a plurality of POs, where one PO corresponds to one or more terminals, i.e., paging DCI transmitted in one PO may be effective to one or more terminals.

4. The method comprises the steps of a first type terminal, cell inhibition information of the first type terminal equipment and co-frequency selection information of the first type terminal equipment:

A first type of terminal device: refers to a terminal with lower air interface capability. As an example, one may refer to a terminal with lower air interface capability than an enhanced mobile broadband (enhanced mobile broadband, eMBB) terminal, such as a smart phone.

Illustratively, the air interface capability may include a physical layer capability and a higher layer capability, and the first type of terminal device having a lower air interface capability may include: the first type of terminal device has a lower physical layer capability and/or has a lower higher layer capability. The first type of terminal device having a lower physical layer capability can be understood, for example, as: the first type of terminal device supports a smaller bandwidth, or lower modulation order, or fewer antennas, or lower number of layers of multiple-input multiple-output (MIMO) or duplex mode is a half duplex mode (Half Duplex Operation, HD-FDD), e.g. the first type of terminal supports a maximum of 20M bandwidth, and/or a maximum of 2 receive antennas.

As an example, the first type of terminal device may be a REDCAP terminal, which includes, for example, an industrial wireless sensor (industrial wireless sensors), a video monitoring (video surveillance) device, a wearable device (Wearables), or a device in the internet of things (internet of things, ioT) (e.g., a smart water meter, a smart electricity meter), etc. Of course, the first type of terminal device may have other names, and the present application is not limited thereto.

Cell barring information of the first type terminal device: indicating whether the current cell is barred for the first type of terminal device. Or, whether the first type of terminal device is allowed to camp on the current cell. Or, indicate whether the first type of terminal device is barred (camped) in the current cell. Can be replaced with each other without limitation.

Common frequency selection information of the first type terminal device: indicating whether the first type of terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred. Or, indicate whether the first type terminal is allowed to select or reselect the on-channel cell when the highest level cell prohibits the first type terminal from camping. Can be replaced with each other without limitation.

In some embodiments, on-channel selection may refer to selecting or reselecting an on-channel cell at the time of cell selection or cell reselection. The cell selection may be a cell search process performed by the terminal when the terminal is powered on or a radio link failure occurs. Cell reselection can be a process of selecting a cell with better signal quality in the moving process of the terminal.

The highest-level cell refers to the cell with the highest priority. For the first type terminal equipment, when the highest-level cell is the current cell, the same-frequency selection information of the first type terminal equipment is effective, and the same-frequency cell is the same-frequency cell of the current cell; otherwise, the on-channel selection information of the first type terminal device is invalid for the first type terminal device.

Optionally, the network device may configure a plurality of cells or frequency points where the cells are located in the broadcast message, and the priority of each cell in the plurality of cells or the priority of each frequency point in the plurality of frequency points, and the terminal device may determine the highest-level cell according to the configuration.

In some embodiments, the present application provides frequency selection information of the first type terminal device, in addition to cell barring information of the first type terminal device and co-channel selection information of the first type terminal device, the frequency selection information being used to indicate whether the first type terminal device is allowed to select or reselect a cell of a specified frequency point (or frequency band). The cell of the designated frequency point (or band) may be different from the same frequency cell of the current cell.

It should be noted that, the features of the same-frequency selection information of the first type of terminal device provided in the following embodiments of the present application may also be applicable to the frequency selection information of the first type of terminal device. In addition, the frequency selection information of the first type of terminal device may have other names, which is not particularly limited by the present application.

Optionally, the first type of terminal device may be further divided into a first subtype of terminal device and a second subtype of terminal device according to the air interface capability of the first type of terminal device, where the air interface capability of the first subtype of terminal device is greater than the air interface capability of the second subtype of terminal device.

Alternatively, the cell barring information of the first type of terminal device may have four cases as follows:

1) Indicating whether the current cell is barred for the first type of terminal device;

2) The cell barring information of the first type of terminal device includes cell barring information of the first subtype of terminal device, indicating whether a current cell is barred for the first subtype of terminal device;

3) The cell barring information of the first type of terminal device includes cell barring information of the second subtype of terminal device, indicating whether a current cell is barred for the second subtype of terminal device;

4) The cell barring information of the first type terminal device includes cell barring information of the first subtype terminal device and cell barring information of the second subtype terminal device, indicating whether the current cell is barred for the first subtype terminal device and whether the current cell is barred for the second subtype terminal device, respectively.

Wherein case 1) may mean that the first type of terminal device is not further distinguished, the cell barring information is valid for both the first type of terminal device, and case 1) may also be understood that the cell barring information for both the first and second type of terminal devices is the same. In case 4), the cell barring information of the first and second sub-type terminal devices may be the same or different, for example, it may indicate that the current cell for the first sub-type terminal device is not barred, and the current cell for the second sub-type terminal device is not restricted.

The same frequency selection information of the first type of terminal device may have four cases as follows:

1) Indicating whether the first type terminal device is allowed to select or reselect the same frequency cell when the highest level cell is barred;

2) The same frequency selection information of the first type terminal equipment comprises same frequency selection information of the first subtype terminal equipment, and indicates whether the first subtype terminal equipment is allowed to select or reselect the same frequency cell when the cell of the highest level is forbidden;

3) The same frequency selection information of the first type terminal equipment comprises same frequency selection information of the second subtype terminal equipment, and indicates whether the second subtype terminal equipment is allowed to select or reselect the same frequency cell when the cell of the highest level is forbidden;

4) The on-channel selection information of the first type terminal device includes on-channel selection information of the first subtype terminal device and on-channel selection information of the second subtype terminal device, respectively indicating whether the first subtype terminal device is allowed to select or reselect on-channel cells when the highest level cell is forbidden, and whether the second subtype terminal device is allowed to select or reselect on-channel cells when the highest level cell is forbidden.

Wherein case 1) may mean that the first type of terminal device is not further distinguished, the on-channel selection information is valid for both the first type of terminal device, and case 1) may also be understood that the on-channel selection information for both the first and second subtype of terminal devices is the same. In case 4), the same frequency selection information of the first subtype terminal device and the second subtype terminal device may be the same or different, for example, it may indicate that the current cell is not forbidden for the first subtype terminal device, and the current cell is forbidden for the second subtype terminal device, which is not limited.

Illustratively, taking the first type of terminal device as a REDCAP terminal as an example, the REDCAP terminal may be classified into different REDCAP terminals according to the maximum capability supported by the REDCAP terminal. For example, REDCAP terminal devices can be further classified into high-capability REDCAP terminals and low-capability REDCAP terminals. For example, the maximum number of receiving antennas supported by the high-capability REDCAP terminal is 2, and/or the maximum bandwidth supported is 20M; the maximum number of receive antennas supported by the low capability REDCAP terminal is 1 and/or the maximum bandwidth supported is 20M.

The high-capability REDCAP terminal can be understood as the first subtype terminal equipment, and the low-capability REDCAP terminal can be understood as the second subtype terminal equipment. Thus, the cell barring information of the REDCAP terminal may include cell barring information of the high capability REDCAP terminal and/or cell barring information of the low capability REDCAP terminal; the on-channel selection information of the REDCAP terminal may include on-channel selection information of the high-capability REDCAP terminal and/or on-channel selection information of the low-capability REDCAP terminal. Reference is made to the above description and will not be repeated here.

Currently, taking a first type of terminal device as a REDCAP terminal as an example, cell inhibition information and/or co-channel selection information of the REDCAP terminal is carried in system information DCI. As can be seen from the above description of the system information and paging DCI, after the system information other than SIB6, SIB7 and SIB8 is changed, the network device notifies the terminal device that the system information carried by the BCCH is changed through the paging DCI in the current change period, and whether the content in the system information DCI is changed is not considered. The system information DCI may also be referred to as DCI of a scheduling SIB, and may be replaced with another DCI, which is not specifically limited in the present application.

That is, in the prior art, when the cell inhibition information and/or the common frequency selection information of the REDCAP terminal are carried in the system information DCI, if the information is changed, the network device does not notify the REDCAP terminal that the cell inhibition information and/or the common frequency selection information are changed, so that the REDCAP terminal already residing in the cell cannot perceive the change of the cell inhibition information and/or the common frequency selection information, and therefore the REDCAP terminal uses the cell inhibition information and/or the common frequency selection information that are not updated.

Based on the above, the application provides an information transmission method, which can timely inform the first type terminal equipment that the cell inhibition information and/or the same frequency selection information are changed, so that the first type terminal equipment can timely acquire the latest cell inhibition information and/or the same frequency selection information, thereby ensuring the correct understanding of the terminal equipment on the current configuration of the network equipment.

The technical solutions in the embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Wherein, in the description of the present application, "/" means that the related objects are in a "or" relationship, unless otherwise specified, for example, a/B may mean a or B; the "and/or" in the present application is merely an association relationship describing the association object, and indicates that three relationships may exist, for example, a and/or B may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural.

In the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural.

In addition, in order to facilitate the clear description of the technical solution of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", etc. are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations or explanations. Any embodiment or design described herein as "exemplary" or "e.g." in an embodiment should not be taken as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

It is appreciated that reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, various embodiments are not necessarily referring to the same embodiments throughout the specification. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in various embodiments of the present application, the sequence number of each process does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

It is to be understood that, in the present application, "when …", "if" and "if" all refer to the corresponding process being performed under some objective condition, and are not limited in time, nor do they require that there be any judgment in the implementation, nor are they meant to imply any other limitation.

It can be appreciated that some optional features of the embodiments of the present application may be implemented independently in some scenarios, independent of other features, such as the scheme on which they are currently based, to solve corresponding technical problems, achieve corresponding effects, or may be combined with other features according to requirements in some scenarios. Accordingly, the device provided in the embodiment of the present application may also implement these features or functions accordingly, which will not be described herein.

The technical solution of the embodiment of the present application may be used in various communication systems, which may be a third generation partnership project (third generation partnership project,3 GPP) communication system, for example, a long term evolution (long term evolution, LTE) system, a 5G mobile communication system, an NR system, a new air interface internet of vehicles (vehicle to everything, NR V2X) system, a system for LTE and 5G hybrid networking, or a device-to-device (D2D) communication system, a machine-to-machine (machine to machine, M2M) communication system, an internet of things (Internet of Things, ioT), and other next generation communication systems, which may also be a non-3 GPP communication system, without limitation.

The technical scheme of the embodiment of the application can be applied to various communication scenes, for example, one or more of the following communication scenes: enhanced mobile broadband (enhanced mobile broadband, emmbb), ultra-reliable low latency communication (ultra reliable low latency communication, URLLC), machine type communication (machine type communication, MTC), large-scale machine type communication (massive machine type communications, mctc), D2D, V2X, and IoT, among other communication scenarios.

The above communication system and communication scenario to which the present application is applied are merely examples, and the communication system and communication scenario to which the present application is applied are not limited thereto, and are collectively described herein, and are not repeated herein.

Referring to fig. 2, a communication system 10 is provided in accordance with an embodiment of the present application. The communication system 10 includes at least one network device 20 and one or more terminal devices 30 connected to the network device 20. Alternatively, different terminal devices 30 may communicate with each other.

The terminal device 30 according to the present application may be a device for realizing a wireless communication function, such as a terminal or a chip usable in a terminal. The terminal may be an IoT, a 5G network, or a User Equipment (UE) in a future evolved PLMN, an access terminal, a terminal unit, a terminal station, a mobile station, a remote terminal, a mobile device, a wireless communication device, a terminal agent, or a terminal apparatus, among others. An access terminal may be a cellular telephone, cordless telephone, session initiation protocol (session initiation protocol, SIP) phone, wireless local loop (wireless local loop, WLL) station, personal digital assistant (personal digital assistant, PDA), handheld device with wireless communication capability, computing device or other processing device connected to a wireless modem, vehicle-mounted device or wearable device, virtual Reality (VR) terminal device, augmented reality (augmented reality, AR) terminal device, wireless terminal in industrial control (industrial control), wireless terminal in self-driving (self-driving), wireless terminal in telemedicine (remote medium), wireless terminal in smart grid (smart grid), wireless terminal in transportation security (transportation safety), wireless terminal in smart city (smart city), wireless terminal in smart home (smart home), etc. The terminal may be mobile or stationary.

In some embodiments, the network device 20 according to the present application is a device for accessing the terminal device 30 to a wireless network, which may be an evolved base station (evolutional Node B, eNB or eNodeB) in LTE; or a base station in a 5G network or future evolved public land mobile network (public land mobile network, PLMN), a broadband network traffic gateway (broadband network gateway, BNG), a convergence switch or a non-3 GPP access device; or the network device 20 in the embodiment of the present application may also be a wireless controller in a cloud wireless access network (cloud radio access network, CRAN); or a transmission receiving node (transmission and reception point, TRP), or a device including TRP, etc., to which embodiments of the application are not particularly limited. Alternatively, the base station in the embodiment of the present application may include various forms of base stations, for example: macro base stations, micro base stations (also referred to as small stations), relay stations, access points, etc., which are not particularly limited in the embodiments of the present application.

Referring to fig. 3a, a user plane protocol stack diagram of the network device 20 is shown, from top to bottom, as a service data adaptation protocol (service data adaptation protocol, SDAP) layer, a packet data convergence protocol (packet data convergence protocol, PDCP) layer, a radio link control (radio link control, RLC) layer, a medium access control (medium access control, MAC) layer, and a Physical (PHY) layer, respectively. Referring to fig. 3b, a control plane protocol stack diagram of the network device 20 is shown, from top to bottom, as RRC layer, PDCP layer, RLC layer, MAC layer, and PHY layer, respectively.

Wherein the SDAP layer is primarily used for mapping between quality of service (quality of service, qoS) flows and data radio bearers (data radio bearer, DRB); the PDCP layer is mainly used for encryption and integrity protection; the RRC layer is mainly used for high-level control of the terminal equipment and is related to access control, maintenance, release and the like of the terminal equipment; the RLC layer is mainly used for segmentation and retransmission of data; the MAC layer and the PHY layer are mainly used for lower-layer scheduling of the terminal device, and are related to data packet, data scheduling, and the like of the terminal device.

In some embodiments, the network device 20 according to the present application may also refer to a Central Unit (CU) or a Distributed Unit (DU), or the network device 20 may also be composed of a CU and a DU. Multiple DUs may share one CU. One DU may also connect multiple CUs. CUs and DUs can be understood as a division of the network device from a logical function perspective. The CU and the DU may be physically separated or may be disposed together, which is not specifically limited in the embodiment of the present application. The CU and the DU may be connected by an interface, for example, an F1 interface.

CUs and DUs may be partitioned according to the protocol layers of the wireless network. For example, functions of the RRC layer, the SDAP layer, and the PDCP layer are provided in the CU, and functions of the RLC layer, the MAC layer, the PHY layer, and the like are provided in the DU. It will be appreciated that the partitioning of CU and DU processing functions in accordance with such protocol layers is merely an example, and may be partitioned in other ways.

For example, a CU or DU may be divided into functions with more protocol layers. For example, a CU or DU may also be divided into partial processing functions with protocol layers. In one design, part of the functions of the RLC layer and the functions of the protocol layers above the RLC layer are set at CU, and the remaining functions of the RLC layer and the functions of the protocol layers below the RLC layer are set at DU. In another design, the functionality of a CU or DU may also be partitioned by traffic type or other system requirements. For example, according to the time delay division, the function of processing time which needs to meet the time delay requirement is set in the DU, and the function which does not need to meet the time delay requirement is set in the CU. In yet another design, a CU may also have one or more functions of the core network. One or more CUs may be centrally located, as well as separately located. For example, the CUs can be arranged on the network side to facilitate centralized management. The DU may have multiple radio functions, or the radio functions may be set remotely.

In some designs, a CU may consist of a CU control plane (CU-CP) and a CU user plane (CU-UP), which may be understood as partitioning the CU from a logical function perspective.

Wherein, the CU-CP and the CU-UP can be divided according to protocol layers of the wireless network, for example, the functions of the PDCP protocol layers corresponding to the RRC protocol layer and the signaling radio bearers (signal radio bearer, SRB) are arranged in the CU-CP, and the functions of the PDCP protocol layers corresponding to the data radio bearers (data radio bearer, DRB) are arranged in the CU-UP. Furthermore, the functionality of the SDAP protocol layer may also be provided in the CU-UP.

In some embodiments, the network device 20 and the terminal device 30 may also be referred to as a communication apparatus, which may be a general purpose device or a special purpose device, which is not specifically limited in the embodiments of the present application.

As shown in fig. 4, a schematic structural diagram of a network device 20 and a terminal device 30 according to an embodiment of the present application is shown.

Wherein the terminal device 30 comprises at least one processor (illustrated in fig. 4 by way of example as comprising one processor 301) and at least one transceiver (illustrated in fig. 4 by way of example as comprising one transceiver 303). Further, the terminal device 30 may also include at least one memory (illustrated in fig. 4 as including one memory 302, for example), at least one output device (illustrated in fig. 4 as including one output device 304, for example), and at least one input device (illustrated in fig. 4 as including one input device 305, for example).

The processor 301, the memory 302 and the transceiver 303 are connected by a communication line. The communication line may include a pathway to communicate information between the aforementioned components.

The processor 301 may be a general purpose central processing unit (central processing unit, CPU), microprocessor, application Specific Integrated Circuit (ASIC), or one or more integrated circuits for controlling the execution of the program of the present application. In a specific implementation, the processor 301 may also include multiple CPUs, as an embodiment, and the processor 301 may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor. A processor herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory 302 may be a device having a memory function. For example, but not limited to, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device that can store information and instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a compact disc read-only memory (compact disc read-only memory) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer. The memory 302 may be stand alone and be connected to the processor 301 by a communication line. Memory 302 may also be integrated with processor 301.

The memory 302 is used for storing computer-executable instructions for executing the inventive arrangements, and is controlled by the processor 301 for execution. Specifically, the processor 301 is configured to execute computer-executable instructions stored in the memory 302, thereby implementing the method described in the embodiment of the present application.

Alternatively, in the present application, the processor 301 may perform functions related to processing in the method provided in the present application, and the transceiver 303 is responsible for communicating with other devices or communication networks, which is not specifically limited in the embodiment of the present application.

Computer-executable instructions according to the present application may also be referred to as application program code or computer program code, and embodiments of the present application are not limited in this regard.

The transceiver 303 may use any transceiver-like device for communicating with other devices or communication networks, such as ethernet, radio access network (radio access network, RAN), or wireless local area network (wireless local area networks, WLAN), etc. The transceiver 303 includes a transmitter (Tx) and a receiver (Rx).

The output device 304 communicates with the processor 301 and may display information in a variety of ways. For example, the output device 304 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a Cathode Ray Tube (CRT) display device, or a projector (projector), or the like.

The input device 305 communicates with the processor 301 and may accept user input in a variety of ways. For example, the input device 305 may be a mouse, a keyboard, a touch screen device, a sensing device, or the like.

The network device 20 includes at least one processor (illustrated in fig. 4 by way of example as including one processor 201) and at least one transceiver (illustrated in fig. 4 by way of example as including one transceiver 203). Further, the network device 20 may also include at least one memory (illustrated in fig. 4 as including one memory 202 by way of example) and at least one network interface (illustrated in fig. 4 as including one network interface 204 by way of example). Wherein the processor 201, the memory 202, the transceiver 203 and the network interface 204 are connected by communication lines. The network interface 204 is used to connect with a core network device through a link (e.g., S1 interface) or to connect with a network interface of another network device (not shown in fig. 4) through a wired or wireless link (e.g., X2 interface), which is not specifically limited by the embodiment of the present application. In addition, the description of the processor 201, the memory 202 and the transceiver 203 may refer to the description of the processor 301, the memory 302 and the transceiver 303 in the terminal device 30, which are not repeated herein.

It will be appreciated that the structure shown in fig. 4 does not constitute a specific limitation on the terminal device 30 and the network device 20. For example, in other embodiments of the present application, terminal device 30 and network device 20 may include more or fewer components than shown, or may combine certain components, or may split certain components, or may have different arrangements of components. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

The method provided by the embodiment of the present application will be described below by taking the interaction between the network device 20 and the terminal device 30 shown in fig. 2 as an example with reference to the accompanying drawings.

It is to be understood that, in the embodiments of the present application, the execution subject may perform some or all of the steps in the embodiments of the present application, these steps or operations are only examples, and the embodiments of the present application may also perform other operations or variations of the various operations. Furthermore, the various steps may be performed in a different order presented in accordance with embodiments of the application, and it is possible that not all of the operations in the embodiments of the application may be performed.

It will be appreciated that in various embodiments of the present application, the interaction mechanism between the network device and the terminal device may be modified appropriately, so as to adapt to interactions between the CU or the DU and the terminal device.

It should be noted that, in the following embodiments of the present application, names of messages between devices or names of parameters in a message are merely examples, and may be other names in specific implementations, which are not limited in particular by the embodiments of the present application.

As shown in fig. 5a, an information transmission method according to an embodiment of the present application includes the following steps:

S501a, the network device sends the first information. Correspondingly, the terminal equipment receives the first information.

The first information is used for indicating cell prohibition information and/or common frequency selection information of the first type terminal equipment. The cell inhibition information and the co-channel selection information of the first type terminal device may refer to the foregoing related description, and will not be described herein.

Optionally, the terminal device receiving the first information is a first type terminal device, and since the first information is used to indicate information related to the first type terminal device, the terminal device interested in or required for the first information needs to obtain the first information, and therefore the first type terminal device receives the first information.

It will be appreciated that the cell barring information and the co-channel selection information of the first type of terminal device are information at a cell level (or cell granularity), i.e. each cell has its corresponding cell barring information and co-channel selection information. In this embodiment, the case where the terminal device is within the coverage area of the first cell and the network device sends the first information corresponding to the first cell in the first cell is described as an example.

That is, the current cell is the first cell. The cell barring information of the first type terminal device indicates whether a first cell is barred for the first type terminal device; in other words, the cell barring information of the first type terminal device indicates whether the first type terminal device is allowed to camp on the first cell; or, whether the first type of terminal device is barred (camped) in the first cell. When the highest level cell is the first cell, the same frequency selection information of the first type terminal device indicates whether to allow the first type terminal device to select or reselect the same frequency cell of the first cell when the first cell is forbidden; or, indicate whether the first type terminal is allowed to select or reselect the same frequency cell of the first cell when the first cell prohibits the first type terminal device from camping.

Optionally, the first information may be carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier.

Alternatively, in the present application, "system information downlink control information" may also be referred to as "downlink control information of scheduling system information". That is, the first information may be carried in downlink control information of the scheduling system information.

For example, the system information downlink control information may be DCI scheduling SIB 1. That is, the first information is carried in DCI scheduling SIB 1.

Alternatively, the first information may be broadcast periodically by the network device. The receiving of the first information for the terminal device may be: receiving first information for the first time after moving to the coverage area of a first cell; alternatively, it may be: receiving first information for the first time after the first cell is started or a radio link failure occurs; alternatively, it may be: and re-receiving the first information after the cell inhibition information and/or the same-frequency selection information of the first type terminal equipment are changed. The present application does not specifically limit the scenario in which the terminal device receives the first information.

S502a, the network equipment sends second information. Correspondingly, the terminal equipment receives the second information.

The second information is used for indicating that the first information is changed, that is, the network device can inform that the first information is changed. Or, the second information is used for indicating the terminal equipment to acquire the cell inhibition information and/or the same-frequency selection information of the first type terminal equipment.

Optionally, in the case that the first information is carried in the system information downlink control information, the second information may be understood as: for instructing the terminal device to acquire (or read) the system information downlink control information.

Optionally, when the first information includes cell inhibition information and common frequency selection information of the first type of terminal device, the change of the first information may be one of the following three cases:

the cell forbidden information of the first type terminal equipment is changed, and the same frequency selection information is not changed;

or the cell forbidden information of the first type terminal equipment is not changed, and the same-frequency selection information is changed;

or the cell inhibition information of the first type terminal equipment is changed, and the same-frequency selection information is also changed.

Optionally, when the first information includes cell inhibition information of the first type of terminal device, the second information is used to indicate that the first information is changed, and may include: the second information is used for indicating that the cell inhibition information of the first type terminal device is changed from the first indication to the second indication. That is, the second information can indicate a specific change of the first information.

Illustratively, the first indication may be: the first type of terminal equipment is not forbidden in the current cell, or the cell is not forbidden; the second indication information may be: the first type of terminal device is barred, or cell barred, at the current cell. That is, the second information is used to indicate that the cell barring information of the first type terminal device is changed from that the first type terminal device is not barred in the current cell to that the first type terminal device is barred in the current cell, or the second information is used to indicate that the cell barring information of the first type terminal device is changed from that the cell is not barred to that the cell is barred, and the first type terminal device and the second type terminal device can be replaced with each other.

Based on the scheme, before the first information is changed, the first type terminal equipment is not forbidden in the current cell, so that the first type terminal can reside in the current cell, and the network is accessed through the current cell when the service needs to be initiated. After that, when the first type terminal equipment is forbidden in the current cell, the network equipment sends the second information to inform that the first type terminal equipment is forbidden to reside in the current cell, so that the situation that the first type terminal equipment which has already resided in the current cell continuously uses the cell forbidden information before changing, and the current cell is mistakenly considered to allow to reside is avoided, and the operation of accessing the current cell is still executed when the service needs to be initiated. That is, after the first type terminal device receives the second information, the first type terminal device does not continue to access the network in the current cell, so that the power consumption of the terminal device can be reduced. In addition, after the terminal equipment receives the second information, the terminal equipment knows that the current cell is forbidden, so that other cells can be selected to reside, and when the service needs to be initiated, the network is accessed through the other cells.

Alternatively, the network device may send the second information if it is determined that the first information has changed. Alternatively, the network device may send the second information if it is determined that the first information is changed from the first indication to the second indication.

Next, a specific carrying manner of the second information will be described. The application mainly provides two bearing modes, wherein one is that second information is borne in paging downlink control information; the other is that the second information is carried in the paging message.

In case the second information is carried in paging downlink control information:

in some embodiments, the second information may be carried in a short message (short message) field included in the paging downlink control information. Alternatively, the second information may be carried in a first field included in the paging downlink control information, where the first field can implement a function of a short message field in the 3gpp TS 38.331 standard.

As an implementation, the second information may be carried in a field of the short message field to which a specific function has been assigned, that is, a field of the short message field to which a function has been used may be multiplexed, or a new function may be added to a field of the short message field to which a function has been used.

As an example, the multiplexed field of the short message fields may be a system information modification field (systemInfoModification), that is, the second information is carried in the system information modification field of the short message fields. Or, the field which has been multiplexed in the short message field is a second field, and the second field can implement the function of a system information change field in the 3GPP TS 38.331 standard, that is, the second information is carried in the second field in the short message field.

For example, when the system information change field is set to 1, it indicates that the second information, that is, the cell forbidden information and/or the co-channel selection information indicating the first type of terminal device is changed, and the content definition of a short message field provided in the present application may be as shown in table 3 below. In the case that the second information indicates that the cell barring information of the first type of terminal device is not changed from cell barring to cell barring, the content definition of a short message field provided by the present application may be as shown in table 4 below.

If the existing fields are multiplexed, the multiplexed fields may indicate the originally indicated meaning and a new meaning, i.e., the new meaning is used to indicate that the first information is changed. At this time, as shown in the following table 3, when the system information change field is set to 1, the system information except SIB6, SIB7 and SIB8 used for indicating the BCCH bearer is changed, or the cell forbidden information and/or the co-channel selection information of the first type terminal device is indicated to be changed; as shown in table 4 below, when the system information change field is set to 1, the system information except SIB6, SIB7 and SIB8 used for indicating the BCCH bearer is changed, or the cell inhibition information of the first type terminal device is indicated to be changed from the cell inhibition to the cell inhibition, and/or the same frequency selection information of the first type terminal device is indicated to be changed.

TABLE 3 Table 3

TABLE 4 Table 4

Optionally, when the second information is carried in the system information change field in the short message field, the system information change field cannot indicate whether the system information is changed or the first information is changed, or the cell inhibition information of the first type terminal device is not inhibited from being changed into cell inhibition from the cell, so that after the terminal device receives the short message field, if the system information change field of the short message field is set to 1, the terminal device can receive the MIB again, receive DCI of scheduling SIB1 according to the MIB to receive SIB1, and receive DCI of other SIBs according to SIB1 to receive other SIBs.

Optionally, in the process that the terminal device receives the MIB and the SIB again, the terminal device may receive third information carried in DCI of the scheduling system information, where the third information is used to indicate cell inhibition information and/or common frequency selection information of the first type of terminal device. It is to be understood that the third information may be regarded as the changed first information, and the system information DCI carrying the third information and the system information DCI carrying the first information may be the same type of system information DCI, for example, DCI of the scheduling SIB 1.

The implementation manner of the first field included in the paging downlink control information by the second information may refer to the implementation manner of the short message field included in the paging downlink control information by the second information, which is not described herein.

Based on the scheme, the second information is carried in the system information change field, so that the existing standard is slightly changed, and the standard compatibility can be better realized.

As another implementation, a new field may be defined in the short message field to carry the second information, the new field being a field that is not used or defined for a specific function in the existing standard.

In this scenario, the newly defined field may be referred to as an access control change field, or may be referred to as a cell prohibit/co-channel selection change field, or may be referred to as a system information DCI change field. Of course, other names may be used, and the name of the newly defined field is not specifically limited by the present application.

As an example, the new field may be one or more reserved bits in a short message field in the 3gpp TS 38.331 standard. For example, the new field may be one of the 4 th-8 th bits in the short message field in the 3gpp TS 38.331 standard, i.e. one of the 1 st-4 th reserved bits in the short message field in the 3gpp TS 38.331 standard. Taking the new field called system information DCI change field as an example, the 4 th bit in the short message field in the 3gpp TS 38.331 standard, the content definition of the short message field provided by the present application may be as shown in table 5 below.

TABLE 5

Optionally, when the second information is carried in a newly defined field in the short message field, if the newly defined field is set to 1, the terminal device may receive third information, where the third information is used to indicate cell forbidden information and/or common frequency selection information of the first type of terminal device.

It is to be understood that the third information may be regarded as the changed first information, and the system information DCI carrying the third information and the system information DCI carrying the first information may be the same type of system information DCI, for example, DCI of the scheduling SIB 1. As to whether the terminal device is to re-receive the MIB and SIB, it may be determined according to the system information change field, for example, when the system information change field is set to 1, the MIB and SIB are re-received, otherwise, not received.

Based on the scheme, the field newly defined in the short message is used for carrying the second information for indicating the change of the cell inhibition information and/or the same frequency selection information of the first type terminal equipment, so that the first type terminal equipment can acquire the new cell inhibition information and/or the same frequency selection information in time. For other terminal equipment such as a non-REDCAP terminal of the non-first type terminal equipment, the newly defined field does not need to be analyzed, the other terminal equipment is not caused to repeatedly receive the same MIB and SIB, the influence on the non-first type terminal equipment is reduced, and the power consumption of the non-first type terminal equipment is saved.

Optionally, in case that the second information is carried in a newly defined field included in the short message field, the method provided by the present application further includes: the network device transmits fourth information. Correspondingly, the terminal equipment receives the fourth information. The fourth information is used for indicating that the short message field carries second information or indicates that the short message field carries information for indicating whether cell forbidden information and/or common frequency selection information of the first type of terminal equipment are changed or not; alternatively, the fourth information may be used to indicate that some or all of the reserved bits in the short message field in the 3gpp TS 38.331 standard are used.

Optionally, the fourth information may be carried in a short message indication (short message indicator) field included in the paging downlink control information, for example, when a bit field of the short message indication field is set to "00", the fourth information is indicated, which indicates that the short message field carries the second information, or indicates that the short message field carries information for indicating whether cell inhibition information and/or common frequency selection information of the first type terminal device is changed. In this scenario, the content definition of the short message indication field provided by the present application may be as shown in table 6 below.

TABLE 6

Based on the scheme, the first type terminal equipment can analyze the last few bits of the short message field according to the fourth information, so as to acquire whether the cell forbidden information and/or the same frequency selection information of the first type terminal equipment are changed, and acquire new cell forbidden information and/or same frequency selection information under the condition that the cell forbidden information and/or the same frequency selection information are changed.

Optionally, whether the second information carries a field that has been used in the short message field or carries a field that is newly defined in the short message field, in the case that the paging downlink control information includes the short message indication field, the bit field of the short message indication field may be set to "01" or "10" to indicate that the paging downlink control information includes the short message field, so that the terminal device parses the short message field to obtain the information carried in the short message field.

In other embodiments, a new field may be defined in the paging downlink control information to carry the second information, the new field being a field that is not used or defined for a specific function in an existing standard.

In this scheme, the newly defined field in the paging downlink control information is a field juxtaposed with a short message field, a short message indication field, or the like, and is not included in the short message field or the short message indication field.

As an example, the new field may be one or more reserved bits in the paging downlink control information in the 3gpp TS 38.212 standard, juxtaposed with the short message field. Taking this new field as a system information DCI modification field as an example, the paging downlink control information provided in the present application may include:

a short message indication field;

a short message field;

a frequency domain resource allocation field;

a time domain resource allocation field;

mapping field of virtual resource block to physical resource block;

a modulation coding scheme field;

a transport block scaling field;

a system information DCI change field;

reserved bits: the size is less than or equal to 5bits.

Among the fields included in the above listed paging downlink control information, the system information DCI modification field is an optional field, and the other fields are optional fields.

Based on the scheme, the field newly defined in the paging downlink control information is used for carrying the second information for indicating the change of the cell inhibition information and/or the same frequency selection information of the first type terminal equipment, so that the first type terminal equipment can acquire the new cell inhibition information and/or the same frequency selection information in time. For other terminal equipment such as a non-REDCAP terminal of the non-first type terminal equipment, the newly defined field does not need to be analyzed, the other terminal equipment is not caused to repeatedly receive the same MIB and SIB, the influence on the non-first type terminal equipment is reduced, and the power consumption of the non-first type terminal equipment is saved.

In case the second information is carried in the paging message:

alternatively, the content in the paging DCI may inherit the provision in the existing standard.

Optionally, a new field may be added to the paging message to carry the second information. For example, if a new field of 1 bit is added to the paging message and the 1 bit is set to a first value, the second information, that is, the cell prohibition information and/or the common frequency selection information indicating the first type terminal device is changed, is indicated. Or, the cell inhibition information indicating the first type terminal equipment is not changed from the cell inhibition to the cell inhibition, and/or the same frequency selection information of the first type terminal equipment is changed.

The first value may be "0" or "1", which is not specifically limited in the present application.

Based on the scheme, the second information is carried in the paging message, so that the modification to the existing standard, for example, the content of the paging downlink control information is not modified, and the standard compatibility can be better realized. In addition, the paging message has sufficient available bits, and does not need to occupy only a few reserved bits in the paging downlink control information, so that the expandability of the paging downlink control information is not affected.

Alternatively, in an implementation scenario of the present application, where the network device includes a first functional entity and a second functional entity, the first information may be generated by the first functional entity, and the first functional entity of the network device may send the first information to the second functional entity of the network device. Illustratively, the first functional entity may be a DU and the second functional entity may be a CU.

That is, in case that the first functional entity of the network device generates the cell barring information and/or the on-channel selection information of the first type terminal device, the first functional entity may transmit the generated cell barring information and/or on-channel selection information of the first type terminal device to the second functional entity of the network device.

Optionally, in the case that the first information is changed, the first functional entity of the network device and the second functional entity that may send the changed first information (i.e. the third information) to the network device, so that the second functional entity obtains the latest cell forbidden information and/or co-channel selection information of the first type terminal device.

In summary, under the condition that the cell inhibition information and/or the same-frequency selection information of the first type terminal equipment are changed, the network equipment can indicate that the first type terminal equipment is changed through the second information, so that the first type terminal equipment can acquire updated cell inhibition information and/or same-frequency selection information according to the second information, further, the first type terminal equipment can realize correct understanding of the current network equipment configuration, the probability that the first type terminal equipment uses wrong cell inhibition information and/or same-frequency selection information is reduced, and the service quality of the first type terminal equipment is improved.

In the method shown in fig. 5a, the network device informs the first type of terminal device that the cell barring information and/or the co-channel selection information is changed. It will be appreciated that the method shown in fig. 5a is not limited to only notifying the first type of terminal device of cell inhibition information and/or co-channel selection information, but may be modified appropriately to notify the system that the information carried in the control information of the system is changed, and for example, referring to fig. 5b, a possible implementation method after modification includes:

s501b, the network device sends the first information. Correspondingly, the terminal equipment receives the first information.

The first information is carried in the system information downlink control information, and the system information downlink control information may refer to the foregoing related description and will not be described herein.

For example, the system information downlink control information may be DCI for scheduling SIB1, that is, the first information is carried in DCI for scheduling SIB 1.

Optionally, the first information is used to indicate cell inhibition information and/or co-channel selection information of the first type of terminal device, and the cell inhibition information and the co-channel selection information may refer to the foregoing related description and are not repeated herein.

Optionally, the first information is used to indicate that the terminal device receiving the first information is the first type terminal device under the condition of cell inhibition information and/or co-channel selection information of the first type terminal device.

It should be noted that, the present application is not limited to the first information only being used to indicate the cell forbidden information and/or the co-channel selection information of the first type of terminal device, the first information may also be other information carried in the system information downlink control information, for example, the first information may be information related to the system information of the cell carried in the system information downlink control information, but the first information does not include information related to scheduling (for example, one or more of frequency domain resource allocation, time domain resource allocation, mapping of virtual resource blocks to physical resource blocks, modulation coding scheme, redundancy version, and system information indication domain).

S502b, the network equipment sends second information. Correspondingly, the terminal equipment receives the second information.

The second information is used for indicating that the first information is changed, that is, the network device can inform that the information carried in the system information downlink control information is changed. Or, the second information is used for indicating the terminal equipment to acquire the system information downlink control information.

Alternatively, the network device may send the second information if it is determined that the first information has changed. The present embodiment does not limit the timing of sending the second information by the network device.

Optionally, when the first information is used to indicate cell forbidden information and/or co-channel selection information of the first type of terminal device, the second information is used to indicate that the first information is changed, which may include: the second information is used for indicating that the cell prohibition information of the first type terminal device is changed from that the first type terminal device is not prohibited in the current cell to that the first type terminal device is prohibited in the current cell.

Optionally, when the first information is information related to system information of a cell, which is carried in the system information downlink control information, the second information is used to indicate that the first information is changed, and may include: the second information is used for indicating that the information related to the system information of the cell carried in the system information downlink control information is changed, and is not used for indicating that the information related to the scheduling carried in the system information downlink control information is changed. Optionally, when the information related to scheduling carried in the system information downlink control information is changed, the network device may not notify the terminal device.

Optionally, the second information may be carried in paging downlink control information; alternatively, the second information may be carried in a paging message.

Alternatively, the second information may be carried in a field, such as a system information change field, of the short message field to which a specific function has been assigned; alternatively, a new field may be defined in the short message field to carry the second information. Reference is made to the related description in the above step S502a, which is not repeated here.

In other embodiments, a new field may be defined in the paging downlink control information to carry the second information, the new field being a field that is not used or defined for a specific function in an existing standard. Reference is made to the related description in the above step S502a, which is not repeated here.

Optionally, after receiving the second information, the terminal device may further receive third information sent by the network device, where the third information is carried in the system information downlink control information.

It is to be understood that the third information may be regarded as changed first information, and the system information DCI carrying the third information and the system information DCI carrying the first information may be the same type of system information DCI, for example, DCI of scheduling SIB 1.

Based on the scheme, under the condition that the information carried in the system information DCI is changed, the network equipment can indicate the information to be changed through the second information, so that the terminal equipment can acquire the system information DCI again according to the second information to acquire updated information, and further, the correct understanding of the first type terminal equipment on the current network equipment configuration is realized.

In the method shown in fig. 5a, after the network device notifies the first type of terminal device that the cell inhibition information and/or the same frequency selection information are changed, the first type of terminal device may further acquire the new cell inhibition information and/or the same frequency selection information of the first type of terminal device to be changed. In addition, the application also provides an information transmission method, in which the network device can rapidly inform the cell inhibition information and/or the same frequency selection information of the changed first type terminal device. Referring to fig. 6, a flow chart of the information transmission method is shown, and the method includes:

S601, the network equipment sends first information in a first cell. The terminal device receives first information in a first cell.

The first information is carried in system information downlink control information, and the first information is used for indicating first cell inhibition information and/or first common frequency selection information of the first type terminal equipment. The system information downlink control information may refer to the foregoing related description, where the first cell inhibition information of the first type terminal device belongs to the cell inhibition information of the first type terminal device, and the first common frequency selection information of the first type terminal device belongs to the common frequency selection information of the first type terminal device, which is not described herein again.

For example, the system information downlink control information carrying the first information may be downlink control information of the scheduling SIB 1.

It may be appreciated that the network device sends the first information in the first cell, that is, the current cell is the first cell, so that the first information is used to indicate the first cell inhibition information and/or the first common frequency selection information of the first type terminal device corresponding to the first cell, which may refer to the related description in step S501a and will not be described herein.

Alternatively, the first information may be periodically broadcast by the network device in the first cell, and for the terminal device, the first information may be received in multiple scenarios, reference may be made to the description related to step S501a, which is not repeated herein.

S602, the network equipment sends second information in the first cell. The terminal device receives the second information in the first cell.

The second information is used for indicating second cell prohibition information and/or second same frequency selection information of the first type terminal equipment.

Optionally, the terminal device receiving the second information is a first type terminal device, and since the second information is used to indicate information related to the first type terminal device, the terminal device interested in or required for the second information needs to obtain the second information, and therefore the first type terminal device receives the second information.

Alternatively, the second information may be different from the first information, or the second information may be understood as changed first information.

Optionally, in the case that the first information includes the first cell inhibition information of the first type terminal device and does not include the first common frequency selection information, the second information includes the second cell inhibition information of the first type terminal device and does not include the second common frequency selection information, and the second cell inhibition information is different from the first cell inhibition information; in the case that the first information includes the first common frequency selection information of the first type terminal device and does not include the first cell inhibition information, the second information includes the second common frequency selection information of the first type terminal device and does not include the second cell inhibition information, and the second common frequency selection information is different from the first common frequency selection information.

Optionally, in the case that the first information includes first cell barring information and first common frequency selection information of the first type terminal device:

the second information may include second common frequency selection information not included in the second cell inhibition information of the first type terminal device, which indicates that the cell inhibition information of the first type terminal device is changed, and for the common frequency selection information, the terminal device may perform one of the following two processes:

the same-frequency selection information is considered not to be changed, and the same-frequency selection information acquired and selected before use is considered;

whether the same-frequency selection information is changed is not determined, and system information downlink control information is acquired again to acquire current same-frequency selection information, for example, DCI of scheduling SIB1 is acquired again, and the same-frequency selection information carried by DCI of scheduling SIB1 is acquired.

Or the second information may include second common-frequency selection information of the first type terminal device and not include second cell inhibition information, which indicates that the cell inhibition information of the first type terminal device is not changed, and the common-frequency selection inhibition information is changed;

alternatively, the second information may include second cell barring information and second common frequency selection information of the first type terminal device, and at this time, the second information may include one of the following three cases different from the first information:

The first cell inhibition information is different from the second cell inhibition information, and the first common frequency selection information is the same as the second common frequency selection information, namely the cell inhibition information of the first type terminal equipment is changed;

the first cell inhibition information is the same as the second cell inhibition information, and the first common frequency selection information is different from the second common frequency selection information, namely the common frequency selection information of the first type terminal equipment is changed;

the first cell inhibition information is different from the second cell inhibition information, and the first common frequency selection information is different from the second common frequency selection information, namely, the cell inhibition information and the common frequency selection information of the first type terminal equipment are changed.

Alternatively, the network device may send the second information if it is determined that the first cell barring information and/or the first common frequency selection information of the first type of terminal device are changed.

Alternatively, the second information and the first information may be carried in different information or messages. Alternatively, the second information is carried in information different from the system information downlink control information, for example, the second information is carried in information different from DCI for scheduling SIB 1.

Alternatively, the information or message carrying the second information may be information or message that can be received by the terminal device earlier than the system information downlink control information. Based on the above, under the condition that the second information is understood as the changed first information, the first type terminal equipment which is already resident in the current cell can timely acquire the new cell inhibition information and/or the same-frequency selection information, and the receiving time delay of the cell inhibition information and/or the same-frequency selection information is reduced.

Optionally, when the second information is changed first information, in the system information downlink control information carrying the first information before the first information is changed, the network device may continue to send the changed first information, that is, the second information. That is, the network device may also send the second information in the information that originally carried the first information. Based on the scheme, the first type terminal equipment which subsequently moves to the current cell can acquire cell inhibition information and/or same-frequency selection information.

In some embodiments, the second information may be carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled with a paging radio network temporary identifier.

As an implementation, a new field may be defined in the short message field to carry the second information, the new field being a field that is not used or defined for a specific function in the existing standard.

In this scenario, the newly defined field may be referred to as a cell access control field, or may be referred to as a cell prohibit/co-channel select field. Of course, other names may be used, and the name of the newly defined field is not specifically limited by the present application.

As an example, the newly defined field may be one or more reserved bits in a short message field in the 3gpp TS 38.331 standard. The newly defined field may be, for example, 1 or 2 reserved bits in the short message field in the 3gpp TS 38.331 standard, for example, the second cell barring information of the first type terminal device is carried using 1 reserved bit, or the second common frequency selection information of the first type terminal device is carried using 1 reserved bit, or the second cell barring information and the second common frequency selection information of the first type terminal device are carried using 2 reserved bits.

Alternatively, in the case that 2 reserved bits are used to carry the second cell inhibition information and the second common frequency selection information of the first type terminal device, each reserved bit in the 2 reserved bits may be set to carry the second cell inhibition information and the second common frequency selection information respectively. At this time, each reserved bit may be referred to as a subfield of the newly defined field, for example, a reserved bit carrying second cell barring information may be referred to as a cell barring field, and a reserved bit carrying second on-channel selection information may be referred to as an on-channel selection field.

Taking the 5 reserved bits of the short message field in the 3GPP TS 38.331 standard as examples, the 1 st reserved bit and the 2 nd reserved bit respectively bear the second cell forbidden information and the second same frequency selective information, and are respectively called a cell forbidden field and a same frequency selective field, the content definition of the short message field provided by the application can be shown in the following table 7.

TABLE 7

Optionally, in case that the second information is carried in a newly defined field included in the short message field, the method provided by the present application further includes: the network device transmits the third information. Correspondingly, the terminal equipment receives the third information. The third information is used for indicating that the short message field carries cell forbidden information and/or common frequency selection information; alternatively, the third information may be used to indicate that some or all of the reserved bits in the short message field in the 3gpp TS 38.331 standard are used.

Optionally, the third information may be carried in a short message indication (short message indicator) field included in the paging downlink control information, for example, when a bit field of the short message indication field is set to "00", the third information is indicated, and it is indicated that the short message field carries cell inhibition information and/or common frequency selection information. In this scenario, the content definition of the short message indication field provided by the present application may be as shown in table 8 below.

TABLE 8

Based on the scheme, the first type terminal equipment can analyze the last few bits of the short message field according to the third information, so as to acquire whether the cell forbidden information and/or the same frequency selection information of the first type terminal equipment are changed, and acquire new cell forbidden information and/or same frequency selection information under the condition that the cell forbidden information and/or the same frequency selection information are changed.

Optionally, when the second information is carried in a newly defined field included in the short message field and the paging downlink control information includes a short message indication field, a bit field of the short message indication field may be set to "01" or "10" to indicate that the paging downlink control information includes the short message field, so that the terminal device parses the short message field to obtain cell inhibition information and/or common frequency selection information carried in the short message field.

As another implementation, a new field may be defined in the paging downlink control information to carry the second information, the new field being a field that is not used or defined with a specific function in the existing standard.

In this implementation, the newly defined field in the paging downlink control information is a field juxtaposed with a short message field, a short message indication field, or the like, and is not included in the short message field or the short message indication field.

As an example, the new field may be one or more reserved bits in the paging downlink control information in the 3gpp TS 38.212 standard, juxtaposed with the short message field. For example, the second cell barring information of the first type terminal device may be carried using 1 reserved bit, or the second common frequency selection information of the first type terminal device may be carried using 1 reserved bit, or the second cell barring information and the second common frequency selection information of the first type terminal device may be carried using 2 reserved bits. The manner in which the new field is defined in the short message field to carry the second information is not described in detail herein.

Based on the above scheme, the cell inhibition information and/or the same frequency selection information of the first type terminal equipment are carried in the paging downlink control information, so that the first type terminal equipment which is already resident in the current cell can immediately acquire new cell inhibition information and/or same frequency selection information after receiving the paging downlink control information, the system information downlink control information does not need to be acquired first, and then the new cell inhibition information and/or same frequency selection information is acquired from the system information downlink control information, thereby reducing the time delay of acquiring the new cell inhibition information and/or same frequency selection information by the first type terminal equipment which is already resident in the current cell.

In other embodiments, the second information may be carried in a paging message.

Alternatively, in this embodiment, the content in the paging downlink control information may inherit the specifications in the existing standard.

Optionally, a new field may be added to the paging message to carry the second information. For example, a 1-bit new field is added to the paging message for carrying the second cell barring information, and/or another 1-bit new field is added to the paging message for carrying the second common frequency selection information.

For example, in the case that the 1 bit carrying the second cell barring information is set to the first value, it indicates that the current cell is not barred for the first type terminal device, or indicates that the first type terminal device is allowed to camp on the current cell; in case the 1 bit is set to the second value, it indicates that the current cell is barred for the first type of terminal device or that the first type of terminal device is not allowed to camp on the current cell.

In the case that the 1 bit carrying the second on-channel selection information is set to a third value, indicating that the first type terminal device is not allowed to select or reselect the on-channel cell when the highest level cell is forbidden; in case the 1 bit is set to the fourth value, it is indicated that the first type terminal device is allowed to select or reselect the on-channel cell when the highest level cell is barred.

Based on the scheme, the second information is carried in the paging message, so that the modification to the existing standard, for example, the content of the paging downlink control information is not modified, and the standard compatibility can be better realized.

Optionally, in the case that the first information is changed, the first functional entity of the network device and the second functional entity that may send the changed first information (i.e. the second information) to the network device, so that the second functional entity obtains the latest cell forbidden information and/or co-channel selection information of the first type terminal device.

It can be understood that, when the first information is other information than the cell forbidden information and/or the same frequency selective information of the first type terminal device carried by the system information downlink control information, the method shown in fig. 6 may be applied, so as to notify the changed information carried by the system information downlink control information as soon as possible.

In summary, the present application informs the cell prohibition information and/or the common frequency selection information to change by changing the content of the paging downlink control information in the existing 3GPP TS 38.331 and 3GPP TS 38.212 standards, or carries the cell prohibition information and/or the common frequency selection information, so that the first type terminal equipment can acquire the latest cell prohibition information and/or the common frequency selection, thereby ensuring the correct understanding of the first type terminal equipment on the current network equipment configuration, reducing the probability of using the wrong cell prohibition information and/or the common frequency selection information by the first type terminal equipment, and improving the service quality of the first type terminal equipment.

It can be understood that the structure obtained by changing the content of the paging downlink control information in the existing 3gpp TS 38.331 and 3gpp TS 38.212 standards can be understood as a structure of paging downlink control information provided by the application.

The application enables the first type terminal equipment to acquire the latest cell inhibition information and/or the same frequency selection by notifying the changed cell inhibition information and/or the same frequency selection information. In addition, the application also provides a method for periodically acquiring the cell inhibition information and/or the same-frequency selection information of the first type of terminal equipment by setting a period. Referring to fig. 7, a flow chart of the information transmission method is shown, and the method includes the following steps:

s701, the network device determines a first period.

Alternatively, the first period may also be referred to as a modification period of the cell inhibition information and/or the common frequency selection information of the first type terminal device, or may be referred to as an acquisition period of the cell inhibition information and/or the common frequency selection information of the first type terminal device, and may be replaced with each other, which is not particularly limited in the present application.

Alternatively, the first period may be determined by the network device itself, in which case the network device may notify the terminal device of the first period, e.g., the network device may broadcast the first period to the terminal device via system information; alternatively, it may be agreed that the first period may be stored in the network device when the network device leaves the factory, and the network device determines that the first period may be understood as: the network device reads its stored first period.

Alternatively, in the case where the first period is determined by the network device itself, the duration of the first period determined by the network device may be different at different times or under different circumstances. That is, the first period may be variable. For example, the current first period may be 10ms, and after a period of time, the network device may change the first period to 20ms.

Optionally, the first period may be a change period of the system information, that is, a duration of the first period is the same as a duration of the change period of the system information; alternatively, the first period may be greater than the change period of the system information, for example, the first period is an integer multiple of the change period of the system information.

S702, the network equipment sends first information in the current first period.

The first information is used for indicating first cell inhibition information and/or first common frequency selection information of the first type terminal equipment.

Optionally, the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier. For example, the system information downlink control information is DCI for scheduling SIB 1.

Optionally, the system information is periodically broadcast by the network device, so that the system information downlink control information is also periodically broadcast. That is, the first cell barring information and/or the first co-frequency selection information of the first type of terminal device is periodically broadcasted. For convenience of description, the present application refers to a broadcasting period of the first cell inhibition information and/or the first common frequency selection information as a second period, i.e., the network device broadcasts the first information according to the second period.

It will be appreciated that the first period does not affect the broadcast period of the cell barring information and/or the co-channel selection information of the first type of terminal device, i.e. does not affect the second period. Optionally, the first period is greater than the second period.

For example, referring to fig. 8a, the second period is 5ms and the first period is 10 ms. The network device broadcasts the first information in the first period and in the second first period, i.e. in 0-10ms, and in 10ms-20ms, the first information being broadcast once every 5ms interval, i.e. in 0ms, 5ms, 10ms, 15ms, 20 ms.

S703, the network device sends the second information in a first period after the current first period. The second information is used for indicating second cell prohibition information and/or second same frequency selection information of the first type terminal equipment.

Alternatively, the second information may be different from the first information, or the second information may be understood as changed first information. Reference is made to the related description in the above step S602, which is not repeated here.

That is, in the same first period, the cell inhibition information and/or the same-frequency selection information of the first type of terminal device sent by the network device are the same; the cell inhibition information and/or the same frequency selection information of the first type of terminal device sent by the network device may be the same or different in different first periods.

Alternatively, the second information may be carried in system information downlink control information, for example, in DCI of scheduling SIB 1.

Alternatively, the first period after the current first period may be the next period after the current first period, i.e., the first period after the current first period; alternatively, the nth first period may be after the current first period, where N is a positive integer greater than 1.

Determining, for the network device, a scenario in which the first information is changed to the second information:

alternatively, the network device may determine to change the first information to the second information in the current first period. Illustratively, based on the example shown in fig. 8a, taking the current first period as 10ms-20ms, the network device determines to change the first information to the second information between 10ms-15ms as the current first period (10 ms-20 ms) has not yet ended, and the cell inhibit information and/or the on-channel selection information of the first type of terminal device transmitted in the same first period is the same, then the network device broadcasts the still first information at 15ms and 20ms, and broadcasts the second information once every 5ms in a first period after the current first period, for example, in a next first period of the current first period, i.e., in 20ms-30 ms. If the network device does not change the second information within 20ms-30ms, the network device still broadcasts the second information once every 5ms interval within the subsequent 30ms-40ms, and so on.

Alternatively, the network device may determine to change the first information to the second information during a first period in which transmission of the second information is started.

For example, referring to fig. 8b, the second period is 5ms and the first period is 10 ms. The network device broadcasts the first information in the first period and in the second first period, i.e. in 0-10ms, and in 10ms-20ms, the first information being broadcast once every 5ms interval, i.e. in 0ms, 5ms, 10ms, 15ms, 20 ms. Assuming that the current first period is 10ms-20ms, if the network device determines to change the first information into the second information between 20ms-25ms, because the cell forbidden information and/or the co-channel selection information of the first type terminal device is not transmitted within 20ms-30ms, the network device can transmit the second information according to the second period within 20ms-30ms, that is, broadcast the second information at 25ms and 30ms respectively.

The implementation of the network device is described above, and the implementation of the terminal device in this solution is described below, where the implementation of the terminal device may include the following steps:

s704, the terminal equipment determines a first period.

The description of the first period may refer to the related description in S701, which is not described herein.

Optionally, the first period may be indicated by the network device to the terminal device, and the terminal device may receive the first period broadcasted by the network device through the system information; alternatively, the first period may be agreed, in which case the first period may be stored in the terminal device when the terminal device leaves the factory, and determining the first period by the terminal device may be understood as: the terminal device reads the first period it stores.

S705, the terminal equipment acquires third information according to the first period.

Wherein the third information is used for indicating cell inhibition information and/or co-channel selection information of the first type terminal equipment. It is to be understood that the third information may be the first information, and in the case where the first information is changed, the third information may be the second information.

Optionally, the terminal device receiving the third information is a first type terminal device, and since the third information is used to indicate information related to the first type terminal device, the terminal device interested in or required for the third information needs to obtain the third information, and therefore the first type terminal device receives the third information.

It should be noted that the terminal device does not perceive the internal implementation of the network device. That is, the terminal device does not determine the time when the network device broadcasts the second information, and the terminal device only acquires the third information according to the first period, and uses the content indicated by the third information as the latest cell inhibition information and/or the same frequency selection information of the first type terminal device.

Optionally, the terminal device obtains the third information according to the first period, which can be understood as: and the terminal equipment acquires the third information once every time of the first period.

Illustratively, based on the examples shown in fig. 8a or 8b, the terminal device obtains the third information at 0ms, 10ms, 20ms, 30ms for the terminal device. Wherein, the third information acquired at 0ms, 10ms and 20ms is used for indicating the first cell inhibition information and/or the first common frequency selection information (i.e. the first information) of the first type terminal equipment, and the third information acquired at 30ms is used for indicating the second cell inhibition information and/or the second common frequency selection information (i.e. the second information) of the first type terminal equipment.

Based on the scheme, the application provides the first period, on the one hand, the network equipment changes the cell inhibition information and/or the same-frequency selection information according to the first period, and the terminal equipment acquires the cell inhibition information and/or the same-frequency selection information of the first type of terminal equipment according to the first period, so that the terminal equipment can acquire the latest cell inhibition information and/or the same-frequency selection information in time. On the other hand, no additional information is needed to inform the change or additionally send the changed cell inhibition information and/or the same frequency selection information, so that the signaling overhead can be reduced. In still another aspect, when the first period is greater than the modification period of the system information, the frequency of the terminal device for acquiring the cell inhibition information and/or the same-frequency selection information is reduced, so that the power consumption of the terminal device is saved.

It can be understood that, when the first information is the cell inhibition information and/or the co-channel selection information of the first type terminal device carried by the system information downlink control information, the method shown in fig. 7 may be also applicable, so that the terminal device can timely acquire the latest information carried by the system information downlink control information.

In one implementation scenario of the present application, a network device may include a first functional entity and a second functional entity. Based on the scenario, the present application further provides a method for information transmission between a first functional entity and a second functional entity, see fig. 9, where the method includes:

s901, a first functional entity of the network equipment determines first information.

The first information is used for indicating cell prohibition information and/or common frequency selection information of the first type terminal equipment. The cell inhibition information and the common frequency selection information may refer to the foregoing related description, and will not be described herein.

Alternatively, the first functional entity of the network device may be a DU.

S902, the first functional entity of the network device sends the first information to the second functional entity of the network device.

Alternatively, the second functional entity of the network device may be a CU.

Alternatively, the first functional entity of the network device may send the first information to the second functional entity of the network device through an F1 interface SETUP REQUEST (F1 SETUP REQUEST) message or a gNB-DU configuration update (gNB-DU CONFIGURATION UPDATE) message. Of course, the first information may be transmitted through other messages, which the present application is not limited to.

Optionally, in the case that the cell inhibition information and/or the common frequency selection information of the first type of terminal device are changed, the first functional entity of the network device may also send the changed cell inhibition information and/or the common frequency selection information to the second functional entity.

It will be appreciated that in the various embodiments above, the methods and/or steps implemented by a network device may also be implemented by a component (e.g., a chip or circuit) that may be used with the network device; the methods and/or steps implemented by the terminal device may also be implemented with components (e.g., chips or circuits) available for the terminal device.

The above description has mainly been presented for the solution provided by the present application from the point of interaction between the devices. Correspondingly, the application also provides a communication device which is used for realizing the various methods. The communication device may be a network device in the above method embodiment, or a device including the above network device, or a component that may be used in the network device; alternatively, the communication device may be the terminal device in the above embodiment of the method, or a device including the terminal device, or a component usable with the terminal device.

It will be appreciated that the communication device, in order to achieve the above-described functions, comprises corresponding hardware structures and/or software modules performing the respective functions. Those of skill in the art will readily appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as hardware or combinations of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

The embodiment of the application can divide the functional modules of the communication device according to the embodiment of the method, for example, each functional module can be divided corresponding to each function, or two or more functions can be integrated in one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

In an implementation scenario, taking a communication device as an example of the terminal device in the above method embodiment, fig. 10 shows a schematic structural diagram of a terminal device 100. The terminal device 100 comprises a first transceiver module 1001 and a second transceiver module 1002. The first transceiver module 1001 and the second transceiver module 1002 may be collectively referred to as transceiver modules.

In some embodiments, the terminal device 100 may further include a processing module 1003. Further, a memory module (not shown in fig. 10) may be included for storing program instructions and data.

In some embodiments, the transceiver module, which may also be referred to as a transceiver unit, is used to implement the transmit and/or receive functions. The transceiver module may be formed by a transceiver circuit, transceiver or communication interface.

In some embodiments, the transceiver module may include a receiving module and a transmitting module, for performing the steps of receiving and transmitting classes performed by the terminal device in the above-described method embodiments, respectively, and/or for supporting other processes of the techniques described herein; the processing module 1003 may be configured to perform steps of processing classes (e.g., determining, acquiring, generating, etc.) performed by the terminal in the method embodiments described above, and/or to support other processes of the techniques described herein.

As an example:

a first transceiver module 1001, configured to receive first information, where the first information is used to indicate cell inhibition information and/or co-channel selection information of a first type of terminal device;

the second transceiver module 1002 is configured to receive second information, where the second information is used to indicate that the first information is changed.

As a possible implementation manner, the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier.

As a possible implementation manner, the second information is carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled by adopting a paging wireless network temporary identifier; alternatively, the second information is carried in a paging message.

As a possible implementation manner, the second information is carried in paging downlink control information, including: the second information is carried in a short message field included in the paging downlink control information.

As one possible implementation manner, the second information is carried in a short message field included in the paging downlink control information, and includes: the second information is carried in a system information change field in the short message field; and the transceiver module is also used for receiving third information, and the third information is used for indicating the cell forbidden information and/or the same-frequency selection information of the first type terminal equipment.

As a possible implementation manner, in a case where the first information is used to indicate cell forbidden information of the first type of terminal device, the second information is used to indicate that the first information is changed, including: the second information is used for indicating that the cell prohibition information of the first type terminal device is changed from that the first type terminal device is not prohibited in the current cell to that the first type terminal device is prohibited in the current cell.

As another example:

a first transceiver module 1001, configured to receive first information, where the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier;

The first transceiver module 1002 is configured to send second information, where the second information is used to indicate that the first information is changed.

As a possible implementation, the first information is used to indicate cell barring information and/or co-channel selection information of the first type of terminal device.

As one possible implementation manner, the second information is carried in a short message field included in the paging downlink control information, and includes: the second information is carried in a system information change field in the short message field; the transceiver module is further configured to receive third information, where the third information is carried in the system information downlink control information.

As yet another example:

a first transceiver module 1001, configured to receive first information in a first cell, where the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier, and the first information is used to indicate first cell inhibition information and/or first common frequency selection information of a first type terminal device;

a second transceiver module 1002, configured to receive second information in the first cell, where the second information is used to indicate second cell inhibition information and/or second co-channel selection information of the first type terminal device.

As a possible implementation manner, the first cell inhibition information and the second cell inhibition information are different, and the first common frequency selection information and the second common frequency selection information are different.

As yet another example:

a processing module 1003 configured to determine a first period;

the processing module 1003 is further configured to obtain third information according to the first period, where the third information is used to indicate cell inhibition information and/or co-channel selection information of the first type of terminal device.

As a possible implementation manner, the third information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier.

As one possible implementation manner, the first period is a change period of system information; alternatively, the first period is larger than the change period of the system information.

All relevant contents of each step related to the above method embodiment may be cited to the functional description of the corresponding functional module, which is not described herein.

In the present application, the terminal device 100 is presented in a form of dividing each functional module in an integrated manner. "module" herein may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the described functionality.

In some embodiments, the terminal device 100 may take the form of the terminal device 30 shown in fig. 4, as will occur to those of skill in the art in a hardware implementation.

As an example, the functions/implementation of the processing module 1003 in fig. 10 may be implemented by the processor 301 in the terminal device 30 shown in fig. 4 invoking computer-executable instructions stored in the memory 302, and the functions/implementation of the first transceiver module 1001 and the second transceiver module 1002 in fig. 10 may be implemented by the transceiver 303 in the terminal device 30 shown in fig. 4.

In some embodiments, when the terminal device 100 in fig. 10 is a chip or a chip system, the functions/implementation processes of the first transceiver module 1001 and the second transceiver module 1002 may be implemented through an input/output interface (or a communication interface) of the chip or the chip system, and the functions/implementation processes of the processing module 1003 may be implemented by a processor (or a processing circuit) of the chip or the chip system.

Since the terminal device 100 provided in this embodiment can perform the above method, the technical effects obtained by the method can be referred to the above method embodiment, and will not be described herein.

In an implementation scenario, taking a communication apparatus as an example of the network device in the above method embodiment, fig. 11 shows a schematic structural diagram of a network device 110. The network device 110 comprises a first transceiver module 1101 and a second transceiver module 1102. The first transceiver module 1101 and the second transceiver module 1102 may be collectively referred to as transceiver modules.

In some embodiments, the network device 110 may also include a processing module 1103. Further, a memory module (not shown in fig. 11) may be included for storing program instructions and data.

In some embodiments, the transceiver module may include a receiving module and a transmitting module, for performing the steps of receiving and transmitting classes performed by the network device in the above-described method embodiments, respectively, and/or for supporting other processes of the techniques described herein; the processing module 1103 may be configured to perform the steps of the processing classes (e.g., determining, acquiring, generating, etc.) performed by the terminal in the method embodiments described above, and/or to support other processes of the techniques described herein.

As an example:

a first transceiver module 1101, configured to send first information, where the first information is used to indicate cell inhibition information and/or co-channel selection information of a first type of terminal device;

the second transceiver module 1102 is configured to send second information, where the second information is used to indicate that the first information is changed.

As one possible implementation manner, the second information is carried in a short message field included in the paging downlink control information, and includes: the second information is carried in a system information change field in the short message field; and the transceiver module is also used for transmitting third information, and the third information is used for indicating the cell forbidden information and/or the same-frequency selection information of the first type terminal equipment.

As another example:

a first transceiver module 1101, configured to send first information, where the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier;

As one possible implementation manner, the second information is carried in a short message field included in the paging downlink control information, and includes: the second information is carried in a system information change field in the short message field; the transceiver module is further configured to send third information, where the third information is carried in the system information downlink control information.

As yet another example:

a first transceiver module 1101, configured to send first information in a first cell, where the first information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information radio network temporary identifier, and the first information is used to indicate first cell inhibition information and/or first common frequency selection information of a first type of terminal device;

a second transceiver module 1102, configured to send second information in the first cell, where the second information is used to indicate second cell prohibition information and/or second common frequency selection information of the first type terminal device, where the second information is carried in paging downlink control information, where the paging downlink control information is downlink control information scrambled by using a paging wireless network temporary identifier; alternatively, the second information is carried in a paging message.

As yet another example:

a processing module 1103, configured to determine a first period;

a first transceiver module 1101, configured to send first information in a current first period, where the first information is used to indicate first cell forbidden information and/or first co-frequency selective information of a first type of terminal device;

the second transceiver module 1102 is configured to send second information in a first period after the current first period, where the second information is used to indicate second cell barring information and/or second common frequency selection information of the first type of terminal device.

As a possible implementation manner, the first information or the second information is carried in system information downlink control information, where the system information downlink control information is downlink control information scrambled by using a system information wireless network temporary identifier.

As yet another example:

a processing module 1103, configured to determine first information, where the first information is used to indicate cell inhibition information and/or co-channel selection information of a first type of terminal device;

and the transceiver module is used for sending the first information to a second functional entity of the network equipment.

In the present application, the network device 110 is presented in the form of dividing the respective functional modules in an integrated manner. "module" herein may refer to an application-specific integrated circuit (ASIC), a circuit, a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the described functionality.

In some embodiments, the network device 110 may take the form of the network device 20 shown in FIG. 4 as will occur to those of skill in the art in hardware implementations.

As an example, the functions/implementation of the processing module 1103 in fig. 11 may be implemented by the processor 201 in the network device 20 shown in fig. 4 invoking computer executable instructions stored in the memory 202, and the functions/implementation of the first transceiver module 1101 and the second transceiver module 1102 in fig. 11 may be implemented by the transceiver 203 in the network device 20 shown in fig. 4.

In some embodiments, when the network device 110 in fig. 11 is a chip or a chip system, the functions/implementation procedures of the first transceiver module 1101 and the second transceiver module 1102 may be implemented through an input/output interface (or a communication interface) of the chip or the chip system, and the functions/implementation procedures of the processing module 1103 may be implemented through a processor (or a processing circuit) of the chip or the chip system.

Since the network device 110 provided in this embodiment can execute the above method, the technical effects obtained by the method can be referred to the above method embodiment, and will not be described herein.

As a possible product form, the access point and the terminal according to the embodiments of the present application may be implemented by using the following: one or more field programmable gate arrays (field programmable gate array, FPGA), programmable logic devices (programmable logic device, PLD), controllers, state machines, gate logic, discrete hardware components, any other suitable circuit or circuits capable of performing the various functions described throughout this application.

In some embodiments, the embodiments of the present application further provide a communication device, where the communication device includes a processor, and the processor is configured to implement the method in any of the method embodiments described above.

As a possible implementation, the communication device further comprises a memory. The memory for storing the necessary program instructions and data, and the processor may invoke the program code stored in the memory to instruct the communication device to perform the method of any of the method embodiments described above. Of course, the memory may not be in the communication device.

As another possible implementation, the communication apparatus further includes an interface circuit, which is a code/data read/write interface circuit, for receiving computer-executable instructions (the computer-executable instructions are stored in a memory, may be read directly from the memory, or may be transmitted to the processor via other devices).

As a further possible implementation, the communication device further comprises a communication interface for communicating with a module outside the communication device.

It will be appreciated that the communication device may be a chip or a chip system, and when the communication device is a chip system, the communication device may be formed by a chip, or may include a chip and other discrete devices, which is not specifically limited in the embodiments of the present application.

As one possible product form, the network device and the terminal device according to the embodiments of the present application may be implemented by a general bus architecture.

For convenience of explanation, referring to fig. 12, fig. 12 is a schematic structural diagram of a communication device 1200 according to an embodiment of the present application, where the communication device 1200 includes a processor 1201 and a transceiver 1202. The communication apparatus 1200 may be a network device or a terminal device, or a chip therein. Fig. 12 shows only the main components of the communication apparatus 1200. In addition to the processor 1201 and the transceiver 1202, the communication device may further comprise a memory 1203, and input output devices (not shown).

The processor 1201 is mainly used for processing communication protocols and communication data, controlling the whole communication apparatus, executing software programs, and processing data of the software programs. The memory 1203 is mainly used for storing software programs and data. The transceiver 1202 may include radio frequency circuitry for primarily converting baseband signals to radio frequency signals and processing radio frequency signals, and antennas. The antenna is mainly used for receiving and transmitting radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used for receiving data input by a user and outputting data to the user.

The processor 1201, the transceiver 1202, and the memory 1203 may be connected by a communication bus.

When the communication device is turned on, the processor 1201 may read the software program in the memory 1203, interpret and execute instructions of the software program, and process data of the software program. When data needs to be transmitted wirelessly, the processor 1201 performs baseband processing on the data to be transmitted, and outputs a baseband signal to the radio frequency circuit, and the radio frequency circuit performs radio frequency processing on the baseband signal and then transmits the radio frequency signal to the outside in the form of electromagnetic waves through the antenna. When data is transmitted to the communication device, the radio frequency circuit receives a radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor 1201, and the processor 1201 converts the baseband signal into data and processes the data.

In another implementation, the radio frequency circuitry and antenna may be provided separately from the processor performing the baseband processing, e.g., in a distributed scenario, the radio frequency circuitry and antenna may be in a remote arrangement from the communication device.

The application also provides a computer readable storage medium having stored thereon a computer program or instructions which when executed by a computer, performs the functions of any of the method embodiments described above.

The application also provides a computer program product which, when executed by a computer, implements the functions of any of the method embodiments described above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using a software program, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by a wired (e.g., coaxial cable, fiber optic, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer readable storage medium may be any available medium that can be accessed by a computer or a data storage device including one or more servers, data centers, etc. that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a Solid State Disk (SSD)), or the like. In an embodiment of the present application, the computer may include the apparatus described above.

Although the application is described herein in connection with various embodiments, other variations to the disclosed embodiments can be understood and effected by those skilled in the art in practicing the claimed application, from a study of the drawings, the disclosure, and the appended claims. In the claims, the word "comprising" does not exclude other elements or steps, and the "a" or "an" does not exclude a plurality. A single processor or other unit may fulfill the functions of several items recited in the claims. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.

Although the application has been described in connection with specific features and embodiments thereof, it will be apparent that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, the specification and drawings are merely exemplary illustrations of the present application as defined in the appended claims and are considered to cover any and all modifications, variations, combinations, or equivalents that fall within the scope of the application. It will be apparent to those skilled in the art that various modifications and variations can be made to the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.

Claims

1. An information transmission method, the method comprising:

the terminal equipment receives first information, wherein the first information is carried in system information downlink control information, and the system information downlink control information is downlink control information scrambled by adopting a system information wireless network temporary identifier; the terminal equipment is first type terminal equipment, the first information is used for indicating cell forbidden information and/or same frequency selection information of the first type terminal equipment, and the first type terminal equipment refers to a terminal with lower air interface capability than an enhanced mobile broadband eMBB terminal;

the terminal equipment receives second information, wherein the second information is used for indicating the first information to change;

the terminal equipment receives third information, wherein the third information is carried in system information downlink control information, and the third information is changed first information.

2. The method according to claim 1, wherein the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether to allow the first type terminal device to select or reselect an on-channel cell when the highest level cell is barred.

3. The method of claim 2, wherein the first type of terminal device is a low capability refcap terminal.

4. A method according to any one of claims 1-3, wherein the second information is carried in paging downlink control information, the paging downlink control information being downlink control information scrambled with a paging radio network temporary identity;

alternatively, the second information is carried in a paging message.

5. The method of claim 4, wherein the second information is carried in paging downlink control information, comprising: and the second information is carried in a short message field included in the paging downlink control information.

6. The method of claim 5, wherein the second information carried in a short message field included in the paging downlink control information comprises:

the second information is carried in a system information change field in the short message field.

7. An information transmission method, the method comprising:

the network equipment sends first information which is carried in system information downlink control information, wherein the system information downlink control information is the downlink control information scrambled by adopting a system information wireless network temporary identifier; the first information is used for indicating cell prohibition information and/or common frequency selection information of a first type of terminal equipment, and the first type of terminal equipment refers to a terminal with lower air interface capability than an enhanced mobile broadband eMBB terminal;

The network equipment sends second information, wherein the second information is used for indicating the first information to be changed;

the network equipment sends third information, the third information is carried in system information downlink control information, and the third information is changed first information.

8. The method according to claim 7, wherein the cell barring information of the first type of terminal device indicates whether a current cell is barred for the first type of terminal device; the on-channel selection information of the first type terminal device indicates whether to allow the first type terminal device to select or reselect an on-channel cell when the highest level cell is barred.

9. Method according to claim 7 or 8, characterized in that the terminal device of the first type is a low capability refcap terminal.

10. The method according to any of claims 7-9, wherein the second information is carried in paging downlink control information, the paging downlink control information being downlink control information scrambled with a paging radio network temporary identity;

alternatively, the second information is carried in a paging message.

11. The method of claim 10, wherein the second information is carried in paging downlink control information, comprising: and the second information is carried in a short message field included in the paging downlink control information.

12. The method of claim 11, wherein the second information carried in a short message field included in the paging downlink control information comprises:

13. A communication device, the communication device comprising: one or more processors configured to execute instructions to cause the communication device to implement the method of any one of claims 1-6 or to cause the communication device to perform the method of any one of claims 7-12.

14. A computer readable storage medium, characterized in that the computer readable storage medium has stored therein a computer program or instructions, which, when executed by a computer, implement the method according to any of claims 1-6 or the method according to any of claims 7-12.