CN108513728B - System information sending method, system information receiving method and device - Google Patents
System information sending method, system information receiving method and device Download PDFInfo
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- CN108513728B CN108513728B CN201680001962.6A CN201680001962A CN108513728B CN 108513728 B CN108513728 B CN 108513728B CN 201680001962 A CN201680001962 A CN 201680001962A CN 108513728 B CN108513728 B CN 108513728B
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Abstract
The invention discloses a system information sending method, a system information sending and receiving device and a system information sending and receiving device, which relate to the technical field of communication, wherein the method comprises the following steps: the method comprises the steps that access network equipment receives a system information request sent by a terminal in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal; and the access network equipment sends the other system information to the terminal in a second SI transmission window. The method and the device solve the problem that when the access network equipment sends other system information to all terminals through multiple beamforming, the signaling burden of the access network equipment is large; the access network equipment only needs to send other system information to the terminal which sends the system request information, and does not need to send other system information to all terminals, so that the signaling burden of the access network equipment is reduced.
Description
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for sending system information, and a method and an apparatus for receiving system information.
Background
In an LTE (Long-Term Evolution) System, a base station transmits System Information (SI) to a UE (User Equipment) in a broadcast manner. The system information includes information required to be used when the UE accesses the base station, such as: downlink bandwidth parameters, system frame numbers, cell reselection information, and the like.
In order to enable the UE to obtain better signal quality when receiving the system information, in the 5th generation mobile communication technology (5G), the base station transmits the system information to each UE in the cell by means of beamforming. Among them, the 5G system is also called New Radio (NR) system. Beamforming is a signal preprocessing technology based on an antenna array, and generates a directional beam by adjusting a weighting coefficient of each array element in the antenna array, so that UEs located in different directions in a cell can receive system information with high signal strength.
When a base station sends system information to each UE in a cell in a beamforming manner, for different UEs with large differences in position and distance, the base station may need to perform beamforming for multiple times to send the system information to the UEs, and as the number of UEs increases, the number of times that the base station sends the system information through beamforming increases, and the workload of the base station is heavy.
Disclosure of Invention
In order to solve the problem that the workload of a base station is heavy when the base station transmits system information to all UEs through beamforming, embodiments of the present disclosure provide a system information transmitting method, a system information receiving method, and a device. The technical scheme is as follows:
in a first aspect, a method for sending system information is provided, where the method includes:
the method comprises the steps that access network equipment receives a system information request sent by a terminal in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information (other SI) to the terminal;
and the access network equipment sends the other system information to the terminal in a second SI transmission window.
Optionally, the receiving, by the access network device, a system information request sent by a terminal in a first SI transmission window includes:
and the access network equipment receives the system information request sent by the terminal in N continuous first SI transmission windows, wherein N is a positive integer.
Optionally, the N is determined according to a load of the access network device, and/or determined according to a service delay requirement of the terminal.
Optionally, the sending, by the access network device, the other system information to the terminal in a second SI transmission window includes:
the access network equipment sends the other system information to the terminal in a second SI transmission window, wherein the second SI transmission window is the Mth SI transmission window after the first SI transmission window.
Optionally, the method further comprises:
the access network equipment sends downlink scheduling information to the terminal, wherein the downlink scheduling information is used for indicating the window position of the second SI transmission window, and the second SI transmission window is the Mth SI transmission window behind the first SI transmission window;
the access network equipment sends the other system information to the terminal in a second SI transmission window, and the method comprises the following steps:
and the access network equipment sends the other system information to the terminal in the second SI transmission window indicated by the downlink scheduling information.
Optionally, the M is determined according to a load of the access network device, and/or determined according to a service delay requirement of the terminal.
Optionally, the window length of the first SI transmission window is determined according to a load of the access network device, and/or the window length of the second SI transmission window is determined according to a load of the access network device.
Optionally, the method further comprises:
the access network equipment sends the window length and the window number of the first SI transmission window to the terminal by minimizing system information; and/or the access network equipment sends the window length and the window number of the second SI transmission window to the terminal through the minimized system information.
Optionally, the sending, by the access network device, the other system information to the terminal in a second SI transmission window includes:
and the access network equipment sends the other system information to the terminal in the second SI transmission window through beamforming.
In a second aspect, a method for receiving system information is provided, the method including:
a terminal sends a system information request to access network equipment in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
and the terminal receives the other system information sent by the access network equipment in a second SI transmission window.
Optionally, the receiving, by the terminal, the other system information sent by the access network device in a second SI transmission window includes:
and the terminal receives the other system information sent by the access network equipment in a second SI transmission window, wherein the second SI transmission window is the Mth SI transmission window after the first SI transmission window.
Optionally, the method further comprises:
the terminal receives downlink scheduling information sent by the access network equipment, wherein the downlink scheduling information is used for indicating the window position of the second SI transmission window, and the second SI transmission window is the Mth SI transmission window behind the first SI transmission window;
the terminal receives the other system information sent by the access network equipment in a second SI transmission window, including:
and the terminal receives the other system information sent by the access network equipment in the second SI transmission window indicated by the downlink scheduling information.
Optionally, the method further comprises:
the terminal receives the minimized system information sent by the access network equipment;
the terminal acquires the window length and the window number of the first SI transmission window in the minimized system information; and/or the terminal acquires the window length and the window number of the second SI transmission window in the minimized system information.
Optionally, the receiving, by the terminal, the other system information sent by the access network device in a second SI transmission window includes:
and the terminal receives the other system information sent by the access network equipment through beamforming in a second SI transmission window.
In a third aspect, a system information transmitting apparatus is provided, the apparatus including:
a receiving unit, configured to receive, in a first system information SI transmission window, a system information request sent by a terminal, where the system information request is used to request the access network device to send other system information to the terminal;
a transmitting unit configured to transmit the other system information to the terminal in a second SI transmission window.
Optionally, the receiving unit is further configured to:
and receiving the system information request sent by the terminal in N continuous first SI transmission windows, wherein N is a positive integer.
Optionally, the apparatus further comprises a processing unit,
the N is determined by the processing unit according to the load of the access network equipment and/or the service delay requirement of the terminal.
Optionally, the sending unit is further configured to:
transmitting the other system information to the terminal in a second SI transmission window, the second SI transmission window being the Mth SI transmission window after the first SI transmission window.
Optionally, the sending unit is further configured to send downlink scheduling information to the terminal, where the downlink scheduling information is used to indicate a window position of the second SI transmission window, and the second SI transmission window is an mth SI transmission window after the first SI transmission window;
the sending unit is further configured to send the other system information to the terminal in the second SI transmission window indicated by the downlink scheduling information.
Optionally, the M is determined by the processing unit according to a load of the access network device and/or a service delay requirement of the terminal.
Optionally, the window length of the first SI transmission window is determined by the processing unit according to the load of the access network device, and/or the window length of the second SI transmission window is determined by the processing unit according to the load of the access network device.
Optionally, the transmitting unit is configured to transmit the window length and the number of windows of the first SI transmission window to the terminal by minimizing system information; and/or the access network equipment sends the window length and the window number of the second SI transmission window to the terminal through the minimized system information.
Optionally, the sending unit is further configured to:
and transmitting the other system information to the terminal in the second SI transmission window through beamforming.
In a fourth aspect, there is provided a system information receiving apparatus, the apparatus including:
a sending unit, configured to send a system information request to an access network device in a first system information SI transmission window, where the system information request is used to request the access network device to send other system information to the terminal;
a receiving unit configured to receive the other system information sent by the access network device in a second SI transmission window.
Optionally, the receiving unit is further configured to:
and the terminal receives the other system information sent by the access network equipment in a second SI transmission window, wherein the second SI transmission window is the Mth SI transmission window after the first SI transmission window.
Optionally, the receiving unit is further configured to receive downlink scheduling information sent by the access network device, where the downlink scheduling information is used to indicate a window position of the second SI transmission window, and the second SI transmission window is an mth SI transmission window after the first SI transmission window;
the receiving unit is further configured to receive the other system information sent by the access network device in the second SI transmission window indicated by the downlink scheduling information.
Optionally, the receiving unit is further configured to receive minimization system information sent by the access network device;
the device further comprises:
an obtaining unit configured to obtain a window length and a window number of the first SI transmission window in the minimized system information; and/or the terminal acquires the window length and the window number of the second SI transmission window in the minimized system information.
Optionally, the sending unit is further configured to:
and receiving the other system information sent by the access network equipment through beamforming in a second SI transmission window.
In a fifth aspect, a system information transmitting apparatus is provided, where the apparatus includes:
a processor;
a transmitter and receiver coupled to the processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving a system information request sent by a terminal through the receiver in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
sending, by the transmitter, the other system information to the terminal in a second SI transmission window.
In a sixth aspect, there is provided a system information receiving apparatus, comprising:
a processor;
a transmitter and receiver coupled to the processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
sending a system information request to access network equipment through the transmitter in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
receiving, by the receiver, the other system information sent by the access network device in a second SI transmission window.
The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:
sending a system information request in a first SI transmission window through a terminal; the access network equipment receives the system information request in the SI transmission window and sends other system information to the terminal in a second SI transmission window according to the system information request; the terminal receives the other system information in the second SI transmission window; the problem that the signaling burden of the access network equipment is large when the access network equipment sends other system information to all terminals through multiple beamforming is solved; the access network equipment only needs to feed back other system information to the terminal which sends the system request information, and does not need to send other system information to all terminals, so that the signaling burden of the access network equipment is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic configuration diagram of a mobile communication system provided according to an embodiment;
fig. 2 is a diagram of an access network device transmitting system information according to one embodiment;
FIG. 3 is a flow chart of a method of system information transmission provided in accordance with an exemplary embodiment;
fig. 4 is a diagram of a first SI transmission window provided in accordance with an example embodiment;
fig. 5 is a diagram of a first SI transmission window and a second SI transmission window provided in accordance with an example embodiment;
FIG. 6 is a flow chart of a method of system information transmission provided in accordance with another exemplary embodiment;
fig. 7 is a flow chart of a method of system information transmission provided in accordance with another exemplary embodiment;
fig. 8 is a block diagram illustrating a system information transmitting apparatus according to an example embodiment;
FIG. 9 is a block diagram illustrating a system information receiving device in accordance with an exemplary embodiment;
FIG. 10 is a schematic block diagram of an access network apparatus provided in accordance with an example embodiment;
fig. 11 is a schematic structural diagram of a terminal provided according to an exemplary embodiment.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.
Reference herein to a "module" generally refers to a program or instructions stored in memory that is capable of performing certain functions; reference herein to "a unit" generally refers to a logically partitioned functional structure, and the "unit" may be implemented by pure hardware or a combination of hardware and software.
Reference herein to "a plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
Referring to fig. 1, a schematic structural diagram of a mobile communication system according to an embodiment is shown. The mobile communication system may be a 5G system, also called NR system. The mobile communication system includes: access network device 120 and terminal 140.
The access network device 120 and the terminal 140 establish a wireless connection over a wireless air interface. Optionally, the wireless air interface is a wireless air interface based on a fifth generation mobile communication network technology (5G) standard, for example, the wireless air interface is a New Radio (NR); alternatively, the wireless air interface may be a wireless air interface based on a 5G next generation mobile communication network technology standard.
It should be noted that, in the mobile communication system shown in fig. 1, a plurality of access network devices 120 and/or a plurality of terminals 140 may be included, and fig. 1 illustrates one access network device 120 and one terminal 140, but this embodiment is not limited thereto.
Please refer to fig. 2, which is a schematic diagram illustrating the access network device 140 sending system information to the terminal 120. In the 5G system, system information is divided into minimized system information (Minimum SI) and Other system information (Other SI).
The Minimum SI is sent by the access network equipment 120 to the terminal 140 in the form of a periodic broadcast. The Minimum SI includes basic information that the terminal 120 needs to use when accessing the access network device 140, such as: downlink cell bandwidth information, system frame number, random access parameter, etc., which is not limited in this embodiment.
The Other SI may be sent to the terminal 140 by the access network device 120 in a form of beamforming or periodic broadcast, which is illustrated in this embodiment by the access network device 120 sending the Other SI to the terminal 140 in a form of beamforming. Other SI includes all system information except the minimized system information, such as: cell reselection information, neighbor cell related information, etc.
In the 5G system, in order to ensure that the terminal can receive Other system information with higher signal quality, for data in a high frequency band (for example, a frequency band above 6 GHz), the access network device generally sends Other SI to multiple terminals by multiple times of beamforming, and accordingly, the terminal receives the Other SI sent by the access network device by beamforming.
In a 5G system, when the access network device 120 sends a system information request through the uplink receiving terminal 140, the access network device 120 may receive the system information request in n consecutive first SI transmission windows with different window lengths; when the terminal 140 receives the system information transmitted by the access network device 120 through the downlink, the terminal 140 may receive the system information in n consecutive second SI transmission windows having different window lengths. The different window lengths may be at least one of X symbols, Y slots, Z TTIs. The first and second SI transmission windows refer to resource locations of time-frequency resources used for transmitting SI.
Referring to fig. 3, a flowchart of a system information transmission method according to an embodiment is shown. The present embodiment is exemplified by applying the system information transmission method to the mobile communication system shown in fig. 1. The method comprises the following steps:
in step 301, the terminal sends a system information request to the access network device in a first SI transmission window.
In this embodiment, at least one terminal sends a system information request to an access network device through N consecutive first SI transmission windows, so that the access network device sends Other SI to the terminal according to the system information request without sending Other SI to all terminals at the same time, thereby saving signaling resources of the access network device, where N is a positive integer. The system information request is used for requesting the access network equipment to send Other SI to the terminal.
The N first SI transmission windows refer to N consecutive first SI transmission windows. Optionally, the window information of the first SI transmission window is pre-agreed by the terminal and the access network device, such as window information agreed in the 5G communication standard. The window information is used for indicating the window length and/or the window number of the first SI transmission window. Such as: a first SI transmission window as shown in fig. 4, the window information of the first SI transmission window comprising: 4 first SI transmission windows, each first SI transmission window having a window length of a predetermined size.
Optionally, in order to ensure that the terminal can receive the Other SI in time, the N first SI transmission windows are consecutive and do not overlap with each Other.
For each terminal sending a system information request, the terminal sends a system information request to the access network device in one of N consecutive first SI transmission windows, such as: the terminal sends a system information request on the second one (window 2 in the figure) of the N consecutive first SI transmission windows.
In step 302, the access network equipment receives a system information request sent by the terminal in a first SI transmission window.
The access network equipment receives system information requests sent by at least one terminal in N continuous first SI transmission windows.
Optionally, the access network device receives a system information request sent by one terminal in a single first SI transmission window, or receives system information requests sent by multiple terminals in a single first SI transmission window.
In step 303, the access network device sends other system information to the terminal in the second SI transmission window.
After receiving the system information request in the first SI transmission window, the access network equipment determines a second SI transmission window for sending Other SI according to the timing relationship between the first SI transmission window and the second SI transmission window.
Wherein, the timing relationship between the first SI transmission window and the second SI transmission window means: the second SI transmission window is the mth transmission window after the first SI transmission window, and the value of M is typically greater than or equal to the number N of first SI transmission windows. Wherein, the mth transmission window after the first SI transmission window refers to: and taking the transmission window which receives the system information request as a starting transmission window, and taking the transmission window after the starting transmission window as the Mth transmission window. In Other words, if the access network device receives the system information request of the terminal in the ith SI transmission window, the access network device sends the Other SI to the terminal in the (i + M) th SI transmission window.
Optionally, the timing relationship of the first SI transmission window and the second SI transmission window is pre-agreed by the access network device and the terminal, or defined by the 5G communication standard.
Optionally, the window information of the second SI transmission window is pre-agreed by the access network device and the terminal, or defined by the 5G communication standard. The second SI transmission windows are consecutive and do not overlap each other. In addition, the second SI transmission window is behind the first SI transmission window, and the second SI transmission window may be continuous or discontinuous with the first SI transmission window, which is not limited in this embodiment.
Illustratively, the first SI transmission window and the second SI transmission window are shown in fig. 5, the first SI transmission window is 5 consecutive SI transmission windows, the second SI transmission window follows the first SI transmission window, and the second SI transmission window is also 5 consecutive SI transmission windows. When the access network equipment receives a system information request sent by the terminal through the ith SI transmission window, the access network equipment sends Other SI to the terminal through the (i + M) th SI transmission window.
In step 304, the terminal receives other system information sent by the access network device in the second SI transmission window.
Since the window information of the second SI transmission window, the timing relationship between the first SI transmission window and the second SI transmission window is pre-agreed by the access network device and the terminal. Therefore, after the terminal sends the system information request through the first SI transmission window, the terminal directly receives the Other SI through the mth SI transmission window after the first SI transmission window, and the access network device does not need to send extra signaling to notify the terminal of the window position of the second SI transmission window, thereby saving signaling resources of the access network device.
To sum up, in the system information transmission method provided by the embodiment of the present disclosure, a system information request is sent in a first SI transmission window through a terminal; the access network equipment receives the system information request in the SI transmission window and sends other system information to the terminal in a second SI transmission window according to the system information request; the terminal receives the other system information in the second SI transmission window; the problem that the signaling burden of the access network equipment is large when the access network equipment sends other system information to all terminals through multiple beamforming is solved; the access network equipment only needs to feed back other system information to the terminal which sends the system request information, and does not need to send other system information to all terminals, so that the signaling burden of the access network equipment is reduced.
In addition, the access network equipment and the terminal pre-agree on the window information of the first SI transmission window, the window information of the second SI transmission window and the timing relationship between the first SI transmission window and the second SI transmission window, so that the access network equipment can ensure that the terminal sending the system request information can successfully receive other system information without additionally sending signaling to the terminal, and the signaling burden of the access network equipment is further reduced.
Alternatively, steps 301 and 304 may be implemented separately as an embodiment of a system information receiving method on the terminal side, and steps 302 and 303 may be implemented separately as an embodiment of a system information sending method on the access network device side, which is not limited in this embodiment.
Based on the embodiment shown in fig. 3, the window information of the first SI transmission window and the window information of the second SI transmission window are fixed. In an alternative embodiment, the access network device may indicate window information of the first SI transmission window and the second SI transmission window to the terminal, where the window information of the second SI transmission window is variable. Optionally, the access network device indicates the window information of the first SI transmission window and the second SI transmission window to the terminal in a system broadcast manner.
Please refer to fig. 6, which shows a flowchart of a system information transmission method according to another embodiment. The present embodiment is exemplified by applying the system information transmission method to the mobile communication system shown in fig. 1. The method comprises the following steps:
in step 601, the access network device determines the window lengths and the window numbers of the first SI transmission window and the second SI transmission window according to the load and/or the service delay requirement of the terminal.
When the access network device determines the window information of the first SI transmission window and the window information of the second SI transmission window according to the load, the access network device obtains the current load of the access network device, for example, the load is used for indicating the number of terminals that have accessed the access network device; window information for the first SI transmission window and window information for a second SI transmission window are determined based on the load. The window lengths of the first SI transmission window and the second SI transmission window are in positive correlation with the load; the number of continuous windows of the first SI transmission window and the second SI transmission window is in positive correlation with the load. That is, the heavier the load is, the larger the window length of the first SI transmission window is, the larger the number N of consecutive windows is; the lighter the load, the smaller the window length of the first SI transmission window and the smaller the number N of consecutive windows.
When the access network equipment determines the window information of a first SI transmission window and the window information of a second SI transmission window according to the service time delay requirement of the terminal, the access network equipment acquires the service type of the terminal and determines the time delay requirement according to the service type; and determining the window information of the first SI transmission window and the window information of the second SI transmission window according to the time delay requirement. The higher the time delay requirement is, the shorter the window lengths of the first SI transmission window and the second SI transmission window are; the lower the delay requirement, the longer the window lengths of the first SI transmission window and the second SI transmission window.
In step 602, the access network equipment sends the window length and the window number of a first SI transmission window to the terminal by minimizing the system information; and/or the access network equipment sends the window length and the window number of the second SI transmission window to the terminal by minimizing the system information.
Optionally, the access network device indicates, in the minimized system information, a window length and a window number of the first SI transmission window and a window length and a window number of the second SI transmission window; or, the window length and the number of windows of the first SI transmission window are indicated in the minimized system information; alternatively, the window length and the number of windows of the second SI transmission window are indicated in a piece of minimization system information, which is not limited in this embodiment.
The first SI transmission windows are continuous and do not overlap with each other; the second SI transmission window is continuous and does not overlap with each other, the second SI transmission window is behind the first SI transmission window, and the second SI transmission window and the SI transmission window may be continuous or discontinuous.
In step 603, the terminal receives the minimized system information sent by the access network device.
In step 604, the terminal obtains the window length and the number of windows of the first SI transmission window in the minimized system information; and/or the terminal acquires the window length and the window number of the second SI transmission window in the minimized system information.
In step 605, the terminal sends a system information request to the access network device in a first SI transmission window.
For each terminal sending a system information request, the terminal sends a system information request to the access network device in one of N consecutive first SI transmission windows.
In step 606, the access network device receives a system information request sent by the terminal in the first SI transmission window.
And the access network equipment receives system information requests sent by the terminal in N continuous first SI transmission windows.
In step 607, the access network device sends other system information to the terminal in the second SI transmission window.
In step 608, the terminal receives other system information sent by the access network device in the second SI transmission window.
Because the window information of the first SI transmission window and the window information of the second SI transmission window are sent to the terminal after the access network device determines that the timing relationship between the first SI transmission window and the second SI transmission window is predefined by the access network device and the terminal or defined by the 5G communication standard, after the terminal sends the system information request through the first SI transmission window, the terminal directly receives Other SI through the mth SI transmission window after the first SI transmission window, and the access network device does not need to send an additional signaling to notify the terminal of receiving the second SI transmission window of the Other system information, thereby saving signaling resources of the access network device.
To sum up, in the system information transmission method provided in the embodiment of the present disclosure, the access network device determines the window length and the number of windows of the first transmission window and the window length and the number of windows of the second transmission window according to the load; transmitting a window length and a window number of a first SI transmission window to a terminal by minimizing system information; and/or, a window length and a number of windows of the second SI transmission window; the window lengths of the first transmission window and the second transmission window are in positive correlation with the load quantity; the window number of the first transmission window and the second transmission window is in positive correlation with the load number, so that the access network equipment can send other system information to the terminal at a longer time interval when the load is heavier, and the signaling load of the access network equipment is reduced.
In addition, determining the window length and the window number of a first transmission window and the window length and the window number of a second transmission window by the access network equipment according to the service delay requirement, and sending the window length and the window number of a first SI transmission window to the terminal by minimizing system information; and/or, a window length and a number of windows of the second SI transmission window; the higher the time delay requirement is, the shorter the window length of the corresponding first SI transmission window and the second SI transmission window is; and the lower the time delay requirement is, the longer the window length of the corresponding first SI transmission window and the second SI transmission window is, so that when the access network equipment sends other system information, the service time delay requirement of the terminal can be met as much as possible, and the timeliness of the access network equipment for sending other system information is ensured.
Optionally, steps 602, 606, and 607 may be implemented separately as an embodiment of a system information sending method on an access network device side, and steps 601, 603, 605, and 608 may be implemented separately as an embodiment of a system information sending method on a terminal side, which is not limited in this embodiment.
Based on the embodiments shown in fig. 3 and fig. 6, the timing relationship between the first SI transmission window and the second SI transmission window is pre-agreed or defined by the 5G communication standard, i.e. the timing relationship is fixed and invariant. In an optional embodiment, after receiving the system information request through the first transmission window, the access network device dynamically configures a second transmission window used for sending the Other SI, and indicates a window position of the second transmission window to the terminal, where a timing relationship between the first SI transmission window and the second SI transmission window is dynamically variable. Optionally, the access network device may indicate the window position of the second transmission window to the terminal by sending downlink scheduling information to the terminal.
Referring to fig. 7, a flowchart of a system information transmission method according to another embodiment is shown. The present embodiment is exemplified by applying the system information transmission method to the mobile communication system shown in fig. 1. The method comprises the following steps:
in step 701, the terminal sends a system information request to the access network device in a first SI transmission window.
The window information of the first SI transmission window may be pre-agreed between the terminal and the access network device, at this time, please refer to the related description in step 301; alternatively, the first transmission window information may be sent by the access network device to the terminal by minimizing the system information, at this time, please refer to the related description in step 601 and 605.
In step 702, the access network equipment receives a system information request sent by the terminal in a first SI transmission window.
For the related description of this step, refer to step 302 or step 606, which is not described herein again.
In step 703, the access network device sends downlink scheduling information to the terminal, where the downlink scheduling information is used to indicate that the second SI transmission window is the mth SI transmission window after the first SI transmission window.
The value of M is determined according to the load of the access network equipment and/or according to the service delay requirement of the terminal.
When M is determined according to the load of the access network equipment, the access network equipment acquires the load quantity; the value of M is determined based on the number of loads. Wherein M is in positive correlation with the load quantity.
When M is determined according to the service delay requirement of the terminal, the access network equipment acquires the service type of the terminal sending the system information request, and determines the delay requirement according to the service type; the value of M is determined according to the delay requirement. Wherein the higher the delay requirement, the larger the value of M.
Optionally, the downlink scheduling information may also be used to indicate a kth SI transmission window, where the kth SI transmission window is an mth SI transmission window after a first SI transmission window in which the access network device receives the system information request.
In step 704, the terminal receives the downlink scheduling information sent by the access network device.
In step 705, the access network equipment sends other system information to the terminal in the second SI transmission window indicated by the downlink scheduling information.
The second SI transmission window is the mth transmission window after the first SI transmission window in which the access network device received the system information request.
In step 706, the terminal receives other system information sent by the access network device in the second SI transmission window indicated by the downlink scheduling information.
In summary, in the system information transmission method provided in this embodiment, the access network device determines, according to the load, the second transmission window for sending other system information, and since the heavier the load is, the larger the value of M of the mth transmission window after the first transmission window is, when the load of the access network device is heavier, the sending of other system information to the terminal may be suspended, so that the signaling load of the access network device is reduced.
In addition, the access network equipment determines a second transmission window for sending other system information according to the service delay requirement of the terminal for sending the system request information, and the higher the system delay requirement is, the smaller the value of M of the Mth transmission window after the first transmission window is, so that when the service delay requirement for sending the system information request is higher, the access network equipment can send other system information to the terminal in time, and the timeliness of the access network equipment for sending other system information is ensured.
Alternatively, steps 701, 704, and 706 may be implemented separately as an embodiment of a system information receiving method on the terminal side, and steps 702, 703, and 705 may be implemented separately as an embodiment of a system information sending method on the access network device side, which is not limited in this embodiment.
The following are embodiments of the disclosed apparatus that may be used to perform embodiments of the disclosed methods. For details not disclosed in the embodiments of the apparatus of the present disclosure, refer to the embodiments of the method of the present disclosure.
Fig. 8 is a block diagram illustrating a system information transmitting apparatus according to an example embodiment. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. The apparatus is applied to an access network device, and may include: a receiving unit 810, a transmitting unit 820 and a processing unit 830.
A receiving unit 810 configured to implement the receiving function of any one of the steps 302, 606, and 702.
A transmitting unit 820 configured to implement the transmitting function of any one of the steps 303, 602, 607, 703 and 705 described above.
A processing unit 830 configured to implement the processing function of any one of the steps 601.
Optionally, N of N consecutive first SI transmission windows is determined by the processing unit 830 according to a load of the access network device and/or according to a service delay requirement of the terminal.
Optionally, in an mth SI transmission window after the first SI transmission window indicated by the downlink scheduling information, M is determined by the processing unit 830 according to the load of the access network device and/or according to the service delay requirement of the terminal.
Optionally, the window length of the first SI transmission window is determined by the processing unit 830 according to the load of the access network device, and/or the window length of the second SI transmission window is determined by the processing unit 830 according to the load of the access network device.
Reference may be made in detail to the method embodiments illustrated in fig. 3, 6 and 7.
Fig. 9 is a block diagram illustrating a system information receiving apparatus according to an example embodiment. The device has the functions of realizing the method examples, and the functions can be realized by hardware or by hardware executing corresponding software. The device is applied to a terminal, and the device can comprise: transmitting section 910, receiving section 920, and acquiring section 930.
A transmitting unit 910 configured to implement the transmitting function of any one of the steps 301, 605, and 701.
A receiving unit 920 configured to implement a receiving function of any one of the steps 304, 603, 608, 704, and 706.
An obtaining unit 930 configured to implement the obtaining function of any one of the above-mentioned steps 604.
Reference may be made in detail to the method embodiments illustrated in fig. 3, 6 and 7.
It should be noted that, when the apparatus provided in the foregoing embodiment implements the functions thereof, only the division of the above functional units is illustrated, and in practical applications, the above function distribution may be performed by different functional units according to actual needs, that is, the content structure of the device is divided into different functional units to perform all or part of the functions described above.
With regard to the apparatus in the above-described embodiment, the specific manner in which each unit performs the operation has been described in detail in the embodiment related to the method, and will not be described in detail here.
An exemplary embodiment of the present disclosure further provides a system information sending apparatus, which can implement the system information transmission method provided by the present disclosure, where the apparatus is used in an access network device, and the apparatus includes: the system comprises a processor, a transmitter and a receiver connected with the processor, and a memory for storing executable instructions of the processor. Wherein the processor is configured to:
receiving a system information request sent by a terminal through a receiver in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
transmitting, by a transmitter, the other system information to the terminal in a second SI transmission window.
An exemplary embodiment of the present disclosure further provides a system information receiving apparatus, which can implement the system information transmission method provided by the present disclosure, and the apparatus is used in a terminal, and the apparatus includes: the system comprises a processor, a transmitter and a receiver connected with the processor, and a memory for storing executable instructions of the processor. Wherein the processor is configured to:
sending a system information request to access network equipment through a transmitter transceiver in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
receiving, by a receiver, the other system information sent by the access network device in a second SI transmission window.
Referring to fig. 10, it shows a schematic structural diagram of an access network device according to an exemplary embodiment, where the access network device includes: a processor 21, a receiver 22, a transmitter 23, a memory 24 and a bus 25.
The processor 21 includes one or more processing cores, and the processor 21 executes various functional applications and information processing by executing software programs and modules.
The receiver 22 and the transmitter 23 may be implemented as a communication component, which may be a communication chip, and the communication chip may include a receiving module, a transmitting module, a modulation and demodulation module, and the like, for modulating and/or demodulating information and receiving or transmitting the information through a wireless signal.
The memory 24 is connected to the processor 21 by a bus 25.
The processor 21 is configured to execute the processing module 261 to implement the functions related to the processing steps in the above-described method embodiments; the sending module 262 is executed to implement the functions related to the sending step in the various method embodiments described above; the processor 21 is configured to execute the receiving module 263 to implement the functions related to the receiving step in the above-mentioned embodiments of the method.
Further, the memory 24 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
Referring to fig. 11, a schematic structural diagram of a terminal provided in an exemplary embodiment is shown, where the terminal includes: a processor 31, a receiver 32, a transmitter 33, a memory 34 and a bus 35.
The processor 31 includes one or more processing cores, and the processor 31 executes various functional applications and information processing by running software programs and modules.
The receiver 32 and the transmitter 33 may be implemented as a communication component, which may be a communication chip, and the communication chip may include a receiving module, a transmitting module, a modulation and demodulation module, and the like, for performing modulation and demodulation on information and receiving or transmitting the information through a wireless signal.
The memory 34 is connected to the processor 31 by a bus 35.
The memory 34 may be used to store software programs and modules.
The processor 21 is configured to execute the receiving module 361 to implement the functions related to the receiving step in the above-mentioned embodiments of the method; the processor 21 is configured to execute the sending module 362 to implement the functions related to the sending step in the above-mentioned embodiments of the method; the processor 21 is configured to execute the obtaining module 363 to implement the functions related to the obtaining step in the above embodiments of the method;
further, the memory 34 may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
Those skilled in the art will recognize that, in one or more of the examples described above, the functions described in embodiments of the disclosure may be implemented in hardware, software, firmware, or any combination thereof. When implemented in software, the functions may be stored on or transmitted over as one or more instructions or code on a computer-readable medium. Computer-readable media includes both computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another. A storage media may be any available media that can be accessed by a general purpose or special purpose computer.
The above description is only exemplary of the present disclosure and is not intended to limit the present disclosure, so that any modification, equivalent replacement, or improvement made within the spirit and principle of the present disclosure should be included in the scope of the present disclosure.
Claims (22)
1. A method for sending system information SI, the method comprising:
the method comprises the steps that access network equipment receives a system information request sent by a terminal in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
the access network equipment sends the other system information to the terminal in a second SI transmission window, wherein the second SI transmission window is the Mth SI transmission window after the first SI transmission window, and the value of M is generally larger than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
2. The method of claim 1, wherein the access network device receives a system information request sent by a terminal in a first SI transmission window, comprising:
and the access network equipment receives the system information request sent by the terminal in N continuous first SI transmission windows, wherein N is a positive integer.
3. The method of claim 1, further comprising:
the access network equipment sends downlink scheduling information to the terminal, wherein the downlink scheduling information is used for indicating the window position of the second SI transmission window, and the second SI transmission window is the Mth SI transmission window behind the first SI transmission window;
the access network equipment sends the other system information to the terminal in a second SI transmission window, and the method comprises the following steps:
and the access network equipment sends the other system information to the terminal in the second SI transmission window indicated by the downlink scheduling information.
4. A method according to any of claims 1 to 3, wherein the window length of the first SI transmission window is determined according to a load of the access network equipment and/or the window length of the second SI transmission window is determined according to a load of the access network equipment.
5. The method of claim 4, further comprising:
the access network equipment sends the window length and the window number of the first SI transmission window to the terminal by minimizing system information; and/or the access network equipment sends the window length and the window number of the second SI transmission window to the terminal through the minimized system information.
6. A method according to any of claims 1 to 3, wherein the access network device sends the other system information to the terminal in a second SI transmission window, comprising:
and the access network equipment sends the other system information to the terminal in the second SI transmission window through beamforming.
7. A method for receiving system information SI, the method comprising:
a terminal sends a system information request to access network equipment in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to the terminal;
the terminal receives the other system information sent by the access network equipment in a second SI transmission window, wherein the second SI transmission window is the Mth SI transmission window after the first SI transmission window, and the value of M is generally larger than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
8. The method of claim 7, further comprising:
the terminal receives downlink scheduling information sent by the access network equipment, wherein the downlink scheduling information is used for indicating the window position of the second SI transmission window, and the second SI transmission window is the Mth SI transmission window behind the first SI transmission window;
the terminal receives the other system information sent by the access network equipment in a second SI transmission window, including:
and the terminal receives the other system information sent by the access network equipment in the second SI transmission window indicated by the downlink scheduling information.
9. The method according to any one of claims 7 to 8, further comprising:
the terminal receives the minimized system information sent by the access network equipment;
the terminal acquires the window length and the window number of the first SI transmission window in the minimized system information; and/or the terminal acquires the window length and the window number of the second SI transmission window in the minimized system information.
10. The method of any of claims 7 to 8, wherein the terminal receives the other system information sent by the access network device in a second SI transmission window, comprising:
and the terminal receives the other system information sent by the access network equipment through beamforming in a second SI transmission window.
11. An apparatus for transmitting system information SI, the apparatus comprising:
a receiving unit, configured to receive, in a first SI transmission window, a system information request sent by a terminal, where the system information request is used to request an access network device to send other system information to the terminal;
a transmitting unit configured to transmit the other system information to the terminal in a second SI transmission window, the second SI transmission window being the mth SI transmission window after the first SI transmission window, a value of M being generally greater than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
12. The apparatus of claim 11, wherein the receiving unit is further configured to:
and receiving the system information request sent by the terminal in N continuous first SI transmission windows, wherein N is a positive integer.
13. The apparatus of claim 11,
the sending unit is further configured to send downlink scheduling information to the terminal, where the downlink scheduling information is used to indicate a window position of the second SI transmission window, and the second SI transmission window is an mth SI transmission window after the first SI transmission window;
the sending unit is further configured to send the other system information to the terminal in the second SI transmission window indicated by the downlink scheduling information.
14. The apparatus of any of claims 11 to 13, wherein the window length of the first SI transmission window is determined by a processing unit based on a load of the access network device, and/or wherein the window length of the second SI transmission window is determined by a processing unit based on a load of the access network device.
15. The apparatus of claim 14,
the transmitting unit is configured to transmit the window length and the number of windows of the first SI transmission window to the terminal by minimizing system information; and/or the access network equipment sends the window length and the window number of the second SI transmission window to the terminal through the minimized system information.
16. The apparatus according to any one of claims 11 to 13, wherein the sending unit is further configured to:
and transmitting the other system information to the terminal in the second SI transmission window through beamforming.
17. An apparatus for receiving System Information (SI), the apparatus comprising:
a sending unit, configured to send a system information request to an access network device in a first SI transmission window, where the system information request is used to request the access network device to send other system information to a terminal;
a receiving unit configured to receive the other system information sent by the access network device in a second SI transmission window, the second SI transmission window being the mth SI transmission window after the first SI transmission window, a value of M being generally greater than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
18. The apparatus of claim 17,
the receiving unit is further configured to receive downlink scheduling information sent by the access network device, where the downlink scheduling information is used to indicate a window position of the second SI transmission window, and the second SI transmission window is an mth SI transmission window after the first SI transmission window;
the receiving unit is further configured to receive the other system information sent by the access network device in the second SI transmission window indicated by the downlink scheduling information.
19. The apparatus of any one of claims 17 to 18,
the receiving unit is further configured to receive the minimized system information sent by the access network device;
the device further comprises:
an obtaining unit configured to obtain a window length and a window number of the first SI transmission window in the minimized system information; and/or the terminal acquires the window length and the window number of the second SI transmission window in the minimized system information.
20. The apparatus according to any one of claims 17 to 18, wherein the sending unit is further configured to:
and receiving the other system information sent by the access network equipment through beamforming in a second SI transmission window.
21. An apparatus for transmitting system information SI, the apparatus comprising:
a processor;
a transmitter and receiver coupled to the processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
receiving a system information request sent by a terminal through the receiver in a first SI transmission window, wherein the system information request is used for requesting an access network device to send other system information to the terminal;
transmitting, by the transmitter, the other system information to the terminal in a second SI transmission window, the second SI transmission window being the Mth SI transmission window after the first SI transmission window, the value of M being typically greater than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
22. An apparatus for receiving System Information (SI), the apparatus comprising:
a processor;
a transmitter and receiver coupled to the processor;
a memory for storing processor-executable instructions;
wherein the processor is configured to:
sending a system information request to access network equipment through the transmitter in a first SI transmission window, wherein the system information request is used for requesting the access network equipment to send other system information to a terminal;
receiving, by the receiver, the other system information sent by the access network device in a second SI transmission window, the second SI transmission window being the mth SI transmission window after the first SI transmission window, the value of M being generally greater than or equal to the number N of the first SI transmission windows; the N is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the N is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the M is at least determined according to one of the load of the access network equipment or the service delay requirement of the terminal, wherein the M is in positive correlation with the load of the access network equipment and in negative correlation with the delay requirement;
the load is used for indicating the number of terminals accessed to the access network equipment.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2016/113812 WO2018120156A1 (en) | 2016-12-30 | 2016-12-30 | Method and apparatus for sending system information, and method and apparatus for receiving system information |
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| CN108513728B true CN108513728B (en) | 2021-03-16 |
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| JP6930107B2 (en) * | 2017-01-06 | 2021-09-01 | ソニーグループ株式会社 | Base station equipment, terminal equipment, methods and recording media |
| CN111869282B (en) * | 2018-10-30 | 2023-06-02 | Oppo广东移动通信有限公司 | Window configuration method and device, terminal and network equipment |
| WO2020087471A1 (en) * | 2018-11-01 | 2020-05-07 | 北京小米移动软件有限公司 | Method and apparatus for processing si request, terminal and storage medium |
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| CN102754487A (en) * | 2010-02-03 | 2012-10-24 | 日本电气株式会社 | Base station, mobile communication system and system information transmitting method |
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| CN102469558B (en) * | 2010-11-09 | 2015-08-19 | 华为技术有限公司 | Method, the equipment and system of broadcast and receiving system information |
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| CN102754487A (en) * | 2010-02-03 | 2012-10-24 | 日本电气株式会社 | Base station, mobile communication system and system information transmitting method |
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