CN107734466B - System message sending method, system message obtaining method, network side equipment and terminal equipment - Google Patents
System message sending method, system message obtaining method, network side equipment and terminal equipment Download PDFInfo
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- CN107734466B CN107734466B CN201610666662.1A CN201610666662A CN107734466B CN 107734466 B CN107734466 B CN 107734466B CN 201610666662 A CN201610666662 A CN 201610666662A CN 107734466 B CN107734466 B CN 107734466B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/06—Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/12—Messaging; Mailboxes; Announcements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/30—Resource management for broadcast services
Abstract
The application provides a system message sending method, a system message obtaining method, network side equipment and terminal equipment. The system message sending method comprises the following steps: network side equipment receives a first transmission request, wherein the first transmission request is used for requesting a first system message; if the first preset condition is met, the network side equipment sends a first system message in a broadcast and/or multicast mode; and if the first preset condition is not met, the network side equipment unicasts the first system message. By adopting the method, the network side equipment and the terminal equipment, the unicast information amount can be greatly reduced, and the waste of wireless resources is reduced.
Description
Technical Field
The present application relates to the field of wireless communications, and in particular, to a method for sending and acquiring a system message, and a network side device and a terminal device.
Background
In a wireless communication system, after downlink synchronization is achieved with a cell through a cell search process, a terminal device needs to acquire a series of system messages, such as transmission parameters or channel information, to correctly operate in the cell. The System Information (SI) is organized in System Information Blocks (SIBs), where each SIB may contain a set of parameters associated with a function.
Because the number of terminal devices accessing the same cell is various, the functions to be realized by different types of terminal devices for realizing the functions of the terminal devices are different. Since different terminal devices have different functions to be implemented, and therefore, system messages to be acquired by different terminal devices are also different, the SIB can be divided into two types, where the first type is an SIB that all terminal devices in a cell need to acquire, and the second type is an SIB that some terminal devices in the cell need to acquire, and another part of terminal devices do not need to acquire. In order to reduce the wireless resource overhead caused by the transmission of the system message, the network side equipment can periodically broadcast and/or multicast and send the first type SIB, so that the terminal equipment in the cell does not need to specially send a corresponding acquisition request aiming at the type SIB; and the network side equipment can unicast the second type SIB according to the acquisition request of the terminal equipment, thereby avoiding the waste of wireless resources caused by broadcasting and/or multicasting the second type SIB.
However, when the number of terminal devices in the same cell is large, a situation that a large number of terminal devices request to acquire the same SIB may occur, and when a plurality of terminal devices request to acquire the same SIB, the network side device needs to unicast a large number of SIBs to be repeatedly transmitted, which still causes waste of wireless resources.
Disclosure of Invention
The application provides a system message sending method, a system message obtaining method, network side equipment and terminal equipment, and aims to reduce the problem of transmission resource waste in the transmission process of the system message.
In a first aspect, the present application provides a method for sending a system message, including: network side equipment receives a first transmission request, wherein the first transmission request is used for requesting a first system message; if the first preset condition is met, the network side equipment sends a first system message in a broadcast and/or multicast mode; and if the first preset condition is not met, the network side equipment unicasts the first system message. By adopting the implementation mode, the waste caused by excessive unicast of the first system message can be avoided.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the network side device counts a first number, where the first number includes: the number of the first transmission requests received by the network side equipment; or, the number of terminal devices requesting the first system message; if the first preset condition is met, the sending, by the network side device, the first system message in a broadcast and/or multicast manner includes: if the first number is greater than or not less than the preset number, the network side equipment sends a first system message in a broadcast and/or multicast mode; if the first preset condition is not satisfied, the unicasting, by the network side device, the first system message includes: and if the first number is not larger than or smaller than the preset number, the network side equipment unicasts the first system message. By adopting the realization mode, the wireless resource can be sent in a unicast way when the number of the terminal equipment requesting to acquire the first system message is less, so that the resource waste caused by excessive multicast sending of the first system message can be avoided.
With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the counting, by the network side device, the first number includes: and the network side equipment counts the first quantity in a first time window.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the sending, by the network side device, the first system message in a broadcast and/or multicast manner includes: and the network side equipment sends the first system message on preset system message transmission resources in a broadcast and/or multicast mode.
With reference to the first aspect or any one of the first to third possible implementation manners of the first aspect, the first transmission request includes: a first beacon, the first beacon being configured to request the first system message; or, a first preamble sequence, where the first preamble sequence is used to request the first system message; or, a first scheduling request message, the first scheduling request message being used to request the first system message; or, a radio resource control connection request carrying an index number of the first system message, where the index number is used to request the first system message; or, data information scrambled by a first Radio Network Temporary Identifier (RNTI), wherein the first RNTI is used for requesting the first system message; or, a transmission request sent by the network side device on a first uplink transmission resource, where the first uplink transmission resource corresponds to the first system message; or, a terminal device identifier, where the terminal device identifier is used to request the first system message.
With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the sending, by the network side device, the first system message in a broadcast and/or multicast manner includes: and the network side equipment broadcasts and/or multicasts the first system message scrambled by the first RNTI, wherein the first channel resource refers to a channel resource used for broadcasting and/or multicasting.
In a second aspect, the present application further provides a system message obtaining method, including: terminal equipment determines a first transmission request, wherein the first transmission request is used for requesting a first system message; and the terminal equipment sends the first transmission request to network side equipment.
With reference to the second aspect, in a first possible implementation manner of the second aspect, the method further includes: and the terminal equipment receives the first system message in a broadcasting, multicasting and/or unicasting mode.
With reference to the second aspect or the first possible implementation manner, in a second possible implementation manner of the second aspect, the receiving, by the terminal device, the first system message in a broadcast, multicast, and/or unicast manner includes: after sending the first transmission request to the network side device, if the first system message sent by the network side device in a unicast mode is not received, the terminal device receives the first system message sent by the network side device in a broadcast and/or multicast mode.
With reference to the second aspect or the first possible implementation manner, in a third possible implementation manner of the second aspect, the receiving, by the terminal device, the first system message in a broadcast, multicast and/or unicast manner includes: after sending the first transmission request to the network side device, if the first system message sent by the network side device in a broadcast and/or multicast mode is not received, the terminal device receives the first system message sent by the network side device in a unicast mode.
With reference to the second aspect, in a fourth possible implementation manner of the second aspect, before the determining, by the terminal device, the first transmission request further includes: the terminal equipment receives the first system message sent by the network side equipment in a broadcast and/or multicast mode; the terminal device determining that the first transmission request includes: and if the first system message sent by the network side equipment in a broadcast and/or multicast mode is not received, the terminal equipment determines a first transmission request.
With reference to the first possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the determining, by the terminal device, the first transmission request includes: if the content of the first system message is updated, the terminal equipment determines a first transmission request; or, when the terminal device enters a cell corresponding to the network side device, the terminal device determines a first transmission request.
With reference to the second aspect or any one of the first to fifth possible implementation manners of the second aspect, in a sixth possible implementation manner of the second aspect, the first transmission request includes: a first beacon, the first beacon being configured to request the first system message; or, a first preamble sequence, where the first preamble sequence is used to request the first system message; or, a first scheduling request message, the first scheduling request message being used to request the first system message; or, a radio resource control connection request carrying an index number of the first system message, where the index number is used to request the first system message; or, data information scrambled by a first Radio Network Temporary Identifier (RNTI), wherein the first RNTI is used for requesting the first system message; or, a transmission request sent by the network side device on a first uplink transmission resource, where the first uplink transmission resource corresponds to the first system message; or, a terminal device identifier, where the terminal device identifier is used to request the first system message.
In a third aspect, the present application further provides a network side device, where the network side device includes a unit module configured to perform the method steps in the foregoing first aspect or various implementation manners of the first aspect.
In a fourth aspect, the present application further provides a terminal device, where the network-side device includes a unit module configured to execute the method steps in the foregoing second aspect or various implementations of the second aspect.
In a fifth aspect, the present application further provides another network-side device, which includes a processor and a transceiver, and is configured to execute all or part of the method steps in the foregoing first aspect and various implementations of the first aspect.
In a sixth aspect, the present application further provides another terminal device, which includes a processor, a receiver, and a transmitter, and is configured to perform all or part of the method steps in the foregoing second aspect and various implementations of the first aspect.
By adopting the method, the network side equipment and the terminal equipment, the waste caused by excessive unicast of the first system message can be avoided.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic flow chart diagram illustrating a message transmission method according to an embodiment of the system of the present application;
fig. 2 is a schematic flowchart of an embodiment of a network side device according to the present application;
fig. 3 is a schematic structural diagram of an embodiment of a terminal device according to the present application;
fig. 4 is a schematic flowchart of another embodiment of a network side device according to the present application;
fig. 5 is a schematic structural diagram of another embodiment of the terminal device according to the present application.
Detailed Description
The present application can be applied to various communication systems, for example, an LTE system, or other wireless communication systems using various radio access technologies, for example, systems using access technologies such as code division multiple access, frequency division multiple access, time division multiple access, orthogonal frequency division multiple access, single carrier frequency division multiple access, and the like, and subsequently evolved systems, such as a fifth generation 5G system, and the like.
The embodiment of the invention can be applied to a wireless communication system comprising network side equipment and terminal equipment (terminal device or terminal equipment). Specifically, the embodiment of the present invention may be applied to data transmission between a terminal device and a network side device, data transmission between a terminal device and a terminal device, or data transmission between a network side device and a network side device. An end device may refer to a device that provides voice and or data connectivity to a user, a handheld device with wireless connection capability, or other processing device connected to a wireless modem. Wireless terminals, which may be mobile terminals such as mobile telephones (or "cellular" telephones) and computers having mobile terminals, such as portable, pocket, hand-held, computer-included, or vehicle-mounted mobile devices, may communicate with one or more core networks via a Radio Access Network (RAN), which exchanges language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless terminal may also be referred to as a system, a Subscriber Unit (SU), a Subscriber Station (SS), a Mobile Station (MS), a Remote Station (RS), an Access Point (AP), a Remote Terminal (RT), an Access Terminal (AT), a User Terminal (UT), a User Agent (UA), a User Equipment (UE), or a User Equipment (UE). The network side device may be a base station, an enhanced base station, a relay with a scheduling function, a device with a base station function, or the like. The base station may be an evolved Node B (eNB) in an LTE system, or may also be a base station in other systems, and the embodiment of the present invention is not limited.
In various implementation manners of the present application, the first system message may include any system message that is sent by the network side device to the terminal device. Wherein the first system message may include all system messages. For example, the first system message may include a sum of all System Information Blocks (SIB) in the LTE system. Alternatively, the first system message may be at least one system message block. For example, the system message block may include any SIB in the LTE system, such as SIB9 or SIB 18. Alternatively, the first system message may be a system message associated with at least one service characteristic. The service may include a multimedia broadcast multicast service (MBMS for short), and the like. Alternatively, the first system message may also be a system message related to at least one function supported by the terminal device. The function may include Coordinated Multiple Points Transmission/Reception (CoMP), or the first system message may also be a system message related to configuration information required by the terminal device to implement a certain operation. The operation may include measurement, Channel State Information (CSI) reporting, and the like.
In the embodiments of the present application, unicast refers to that a network side device transmits system information or data to a single terminal device by using a dedicated wireless resource allocated to the terminal device. Multicast refers to that a network side device transmits system information or data to multiple terminal devices in the same cell by using shared radio resources, where the multiple terminal devices may generally have the same or similar characteristics. The broadcast means that the network side device simultaneously transmits system information or data to the terminal devices within the coverage of the same cell by using the shared wireless resource. In the embodiments of the present application, "broadcast and/or multicast transmission" means transmission in a broadcast-only manner or multicast-only manner, or transmission in a broadcast manner and transmission in a multicast manner at the same time. Receiving network side device sending in broadcast and/or multicast mode "
In various implementations of the present disclosure, the first channel resource may refer to a channel resource dedicated for broadcast and/or multicast in a cell. For example, the first channel resource may include: a periodically repeating fixed subframe; or, a fixed time slot that repeats periodically; or, a fixed radio frame that repeats periodically; or a fixed time window that repeats periodically. The first channel resource may be used only for transmitting the first system message, or may be used for transmitting a second system message or other data in addition to the first system message. The second channel resource may then be referred to as a channel resource for unicast. The second channel resource can be configured to the terminal device by the network side device; the second channel resources may be different for different terminal devices.
In this embodiment of the present invention, determining the first transmission request may refer to generating the first transmission request or acquiring the first transmission request already stored in the terminal device or another network element.
Referring to fig. 1, a schematic flow chart of an embodiment of a message transmission method in the system of the present application is shown, where the method includes the following steps:
step 101, a terminal device determines a first transmission request, where the first transmission request is used to request a first system message.
The terminal device may first determine whether the first system message needs to be acquired. When it is determined that the first system message needs to be acquired, the terminal device may determine the first transmission request.
The implementation manner of determining whether the first system message needs to be acquired may be various.
In one implementation, the terminal device may first determine whether the content of the first system message is updated; the terminal device may determine the first transmission request after determining that the system message has been updated. The content of the first system message is updated, which may mean that the content of the first system message of the current cell is inconsistent with the content of the first system message already acquired by the terminal device.
For example, the terminal device may determine whether the first system message is changed according to the content of the received second system message; the terminal device may determine the first transmission request when a change in the content of the first system message has been determined from the content of the second system message. The second system message may include a paging message or a basic broadcast and/or multicast message, where the basic broadcast and/or multicast message refers to a system message that sends basic configuration information of the network side device.
In another implementation manner, the terminal device may also determine the first transmission request when entering a cell corresponding to the network-side device. When entering the cell corresponding to the network side device, the terminal device may directly determine that the content of the first system message has been updated, thereby determining the first transmission request. Or, the terminal device may determine that the content of the first system message has been updated only when entering the cell corresponding to the network side device and meeting a preset condition, and further determine the first transmission request.
For example, after a terminal device enters a cell, it may be determined whether a value tag (value) value of a system message of the cell is consistent with a value tag value of a system message already stored by the terminal device; if the value of the system message of the cell is inconsistent with the value of the system message stored by the terminal equipment; indicating that the first system message has changed, the terminal device may determine the first transmission request.
For another example, when the terminal device enters a cell, it may be determined whether the saved system message has exceeded the valid time, and if the system message saved by the terminal device has exceeded the valid time, it may also be determined that the first system message has changed, and at this time, the terminal device may determine the first transmission request. Wherein the validity time may be predefined by a wireless communication system; or, the network side device may also notify the terminal device through signaling; alternatively, the information may be stored in the terminal device in advance.
The first transmission request may also be determined when the terminal device needs to implement a service with the first system message. For example, taking the first system message as an example corresponding to the MBMS service, when the terminal device needs to implement the MBMS service, the first transmission request may be determined.
When the terminal device determines that the first system message needs to be acquired, the network side device may already broadcast and/or multicast the first system message in the first channel resource according to the request of other terminal devices. Therefore, in order to save wireless resources, the number of times that the network side equipment repeatedly transmits the first system message is reduced. After determining that the first system message needs to be acquired, the terminal device may first monitor the first channel resource, and if the first system message sent by the network side device in a broadcast and/or multicast manner cannot be received within a predetermined time period, for example, a transmission time interval, then the terminal device determines the first transmission request.
Step 102, a terminal device sends a first transmission request to a network side device, wherein the first transmission request is used for requesting a first system message.
After determining that the first system message needs to be acquired, the terminal device may directly send the first transmission request to the network side device.
The terminal device may send the first transmission request on a reserved common resource; or the first transmission request may also be sent on a dedicated resource of the terminal device. The reserved common resource can be reserved for wireless resources for each terminal device to send transmission requests, and when different terminal devices request to acquire different system messages, corresponding first transmission requests can be sent through the reserved common resource.
The form of the first transmission request may also be different according to actual requirements.
Optionally, the first transmission request may be a transmission request carrying a first beacon (beacon), or the first transmission request may also be the first beacon itself. The first beacon is preset to correspond to the first system message and is used for requesting the network side equipment to send the first system message. The terminal device may request different system messages by transmitting different beacons.
Optionally, the first transmission request may also be a transmission request carrying the first preamble sequence (preamble), or the first transmission request may also be the first preamble sequence itself. The first preamble sequence is preset to correspond to the first system message, and is used for requesting a network side device to send the first system message. The terminal device may request different system messages by sending different preamble sequences.
Optionally, the first transmission request may be a first scheduling request message, and the first scheduling request message is used to request the first system message. The first scheduling request is preset to correspond to the first system message and is used for requesting the network side equipment to send the first system message. The terminal device may request different system messages by sending different scheduling requests.
Optionally, the first transmission request may be a radio resource control connection request carrying an index number of the first system message. The index number corresponds to the first system message and is used for requesting the first system message. The terminal equipment can request different system messages by sending radio resource control connection requests carrying different index numbers.
Optionally, the first transmission request may be data information scrambled by using a first Radio Network Temporary Identity (RNTI). The first RNTI corresponds to the first system message and is used for requesting the first system message. The terminal device may request different system messages by transmitting data information scrambled using different RNTIs.
Optionally, the first transmission request may include a transmission request sent by the network side device on the first uplink transmission resource. The first uplink transmission resource corresponds to the first system message. The terminal device may request different system messages by using different uplink transmission resources.
Optionally, the first transmission request may be a transmission request carrying a terminal identifier of the terminal, or the first transmission request may also be the terminal identifier itself.
Step 103, after receiving the first transmission request, the network side device determines whether a first preset condition is met.
After receiving the first transmission request, the network side device may first determine whether a first amount of radio resources consumed for transmitting the first system message in broadcast and/or multicast is less than a second amount of radio resources consumed for transmitting the first system message to each terminal device requesting to acquire the first system message in unicast; if the first wireless resource amount is less than the second wireless resource amount, the network side equipment can send a first system message in a broadcast and/or multicast mode; if the first amount of radio resources is not less than the second amount of radio resources, the network side device may unicast the first system message.
The first amount of radio resources is less than the second amount of radio resources, and may be determined by whether a first preset condition is satisfied. The first preset condition may be predefined by the wireless communication system; or, the network side device may also notify the terminal device through signaling; alternatively, the information may be stored in the terminal device in advance. If the first preset condition can be met, the first wireless resource amount can be considered to be less than the second wireless resource amount; if the first preset condition cannot be met, the first amount of radio resources may be considered to be less than the second amount of radio resources.
Since the first amount of radio resources does not change with the number of terminal devices requesting to acquire the first system message, the second amount of radio resources does change positively and correlatively with the number of terminal devices requesting to acquire the first system message. Therefore, a preset number, the number of the first transmission requests received by the network side equipment, is stored; or, when the number of the terminal devices requesting the first system message is smaller or not larger than the preset number, the first radio resource amount may be larger than the second radio resource amount.
Therefore, the network side device may count the first number; if the first number is greater than or not less than the preset number, the network side equipment sends a first system message in a broadcast and/or multicast mode; if the first number is not larger than or smaller than the preset number, the network side equipment unicasts the first system message; wherein the first number may include: the number of the first transmission requests received by the network side equipment; or the number of terminal devices requesting the first system message, and the like. The first number may be predetermined by the wireless communication system, and may be configured by the other device.
Step 104, if a first preset condition is met, the network side equipment sends a first system message in a broadcast and/or multicast mode; and if the first preset condition is not met, the network side equipment unicasts the first system message.
If the first preset condition is met, the network side equipment can directly broadcast and/or multicast and send the first system message; or, the network side device may broadcast and/or multicast the first system message after meeting the first preset condition and meeting other preset conditions.
Since the first channel resource may be used for sending messages such as other system messages besides the first system message, the network side device may also distinguish different first system messages by using different sending methods or indication information when sending the first system message. For example, the network side device may broadcast and/or multicast the first system message scrambled with the first RNTI.
If the first preset condition is not met, the network side equipment can broadcast and/or multicast and send the first system message. The specific sending process is not described herein.
Since the first channel resource and the second channel resource may be used for transmitting other system messages or data in addition to the first system message. Therefore, when the network side device sends the first system message, different sending modes or indication information can be adopted to distinguish different first system messages.
For example, when the network side device broadcasts and/or multicasts different data, different RNTIs may be used for scrambling, and when the first system message needs to be transmitted on the first channel resource, the first RNTI may be used for scrambling the system message.
Since the network side device may unicast the first system message or multicast the first system message, before sending the first system message, the network side device may also send a first transmission mode indication in unicast, multicast or broadcast and/or multicast, where the first transmission mode indication is used to indicate whether the network side device sends the first system message in unicast, broadcast and/or multicast.
For example, before sending the first system message, the network side device may send the first transmission method indication, and the first transmission manner may be used to indicate that the network side device is to use the first channel resource or the part of the second channel resource to transmit the first system message.
And 105, the terminal device receives the first system message in a broadcasting, multicasting and/or unicasting mode.
The terminal device can simultaneously receive the first system message in a broadcasting, multicasting and/or unicasting mode; or, the terminal device may also receive the first system message on the first channel resource, and if the first system message sent by the network side device in a unicast manner is not received, receive the first system message sent by the network side device in a broadcast and/or multicast manner; or, the terminal device may also receive the first system message on the second channel resource, and if the second system message sent by the network side device in a unicast manner is not received, receive the first system message sent by the network side device in a broadcast and/or multicast manner.
For example, when the first channel resource and the second channel resource are different frequency domain resources, the terminal device may simultaneously listen to the first channel resource and/or the second channel resource, so as to determine on which channel resource the first system message is transmitted; when the first channel resource and the second channel resource are different time domain resources, the first system message may be received on one of the channel resources according to the difference of time domain positions of the first channel resource and the second channel resource; when the first system message is not received on one of the channel resources, the first system message is received on another channel resource.
Since the first channel resource and the first channel resource may be used for transmitting other system messages or data in addition to the first system message, when the terminal device receives the first system message on the first channel resource or the second channel resource, it may determine whether the message transmitted on the first channel resource or the second channel resource is the first system message according to a sending manner or indication information of the message.
For example, the terminal device may determine whether the system message sent on the first channel resource is the first system message according to whether the system message is scrambled with the first RNTI.
After the terminal device sends the first transmission request, it may also first determine whether the network side device will send the first system message in unicast or will send the first system message in broadcast and/or multicast; the first system message is then received on the first channel resource or the second channel resource.
For example, after receiving the first transmission method indication, the terminal device may determine, according to the content of the first transmission method indication, whether the network-side device is to send the first system message in unicast or to send the first system message in broadcast and/or multicast. If the first system message is determined to be sent by the network side equipment in a broadcast and/or multicast mode according to the first transmission mode indication, the terminal equipment can receive the first system message sent by the network side equipment in the broadcast and/or multicast mode; without having to listen to the second channel resources any more; if it is determined that the network side device will broadcast and/or multicast the first system message according to the first transmission mode indication, the terminal device may receive the first system message unicast-transmitted by the network side device; without having to listen to the first channel resources anymore.
For another example, after receiving the first transmission method indication, the terminal may determine a designated radio resource for transmitting the first system message according to the first transmission method indication, and then receive the first system message on the designated radio resource.
Fig. 2 is a schematic structural diagram of an embodiment of a network-side device according to the present application.
As shown in fig. 2, the terminal device may include: receiving section 201, processing section 202, and transmitting section 203. The terminal device may also include more or less unit modules according to actual needs.
The receiving unit 201 is configured to receive a first transmission request, where the first transmission request is used to request a first system message; a sending unit 203, configured to send a first system message in a broadcast and/or multicast manner if a first preset condition is met; and if the first preset condition is not met, unicasting the first system message.
Optionally, the processing unit 202 is configured to count a first number, where the first number includes: the number of the first transmission requests received by the network side equipment; or, the number of terminal devices requesting the first system message; the sending unit 203 is further configured to send a first system message in a broadcast and/or multicast manner if the first number is greater than or not less than the preset number; and if the first number is not larger than or smaller than the preset number, unicasting the first system message.
Optionally, the processing unit 202 is further configured to count the first number within a first time window.
Optionally, the sending unit 203 is further configured to send the first system message in a broadcast and/or multicast manner on a preset resource for system message transmission.
Optionally, the sending unit 203 is further configured to broadcast and/or multicast the first system message scrambled by the first RNTI, where the first channel resource refers to a channel resource used for broadcasting and/or multicasting.
Fig. 3 is a schematic structural diagram of an embodiment of a network-side device according to the present application.
As shown in fig. 3, the terminal device may include: receiving section 301, processing section 302, and transmitting section 303. The terminal device may also include more or less unit modules according to actual needs.
Wherein, the processing unit 302 is configured to determine a first transmission request, where the first transmission request is used to request a first system message; a sending unit 303, configured to send the first transmission request to a network side device.
Optionally, the receiving unit 301 is configured to receive the first system message in a broadcast, multicast and/or unicast manner.
Optionally, the receiving unit 301 is further configured to receive the first system message sent by the network side device in a broadcast and/or multicast manner if the first system message sent by the network side device in a unicast manner is not received.
Optionally, the receiving unit 301 is further configured to receive the first system message unicast sent by the network side device if the first system message sent by the network side device in a broadcast and/or multicast manner is not received.
Optionally, the receiving unit 301 is further configured to receive the first system message sent by a network side device in a broadcast and/or multicast manner; the processing unit 302 is further configured to determine the first transmission request if the receiving unit 301 does not receive the message sent to the first system by the network side device in a broadcast and/or multicast manner.
Optionally, the processing unit 302 is further configured to determine a first transmission request if the content of the first system message is updated; or, when the terminal device enters a cell corresponding to the network side device, the terminal device determines the first transmission request.
Fig. 4 is a schematic structural diagram of an embodiment of a network-side device according to the present application. The network side device may be the network side device in any of the foregoing embodiments, and is configured to implement the method steps in the foregoing embodiments.
The wireless communication device may be composed of a processor 401, a memory 402, a transceiver 403, and the like.
The processor 401 is a control center of the network side device, connects various parts of the entire network side device by using various interfaces and lines, and executes various functions of the network side device and/or processes data by running or executing software programs and/or modules stored in the memory and calling data stored in the memory. The processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP. The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a Programmable Logic Device (PLD), or a combination thereof. The PLD may be a Complex Programmable Logic Device (CPLD), a field-programmable gate array (FPGA), a General Array Logic (GAL), or any combination thereof.
The memory 402 may include a volatile memory (e.g., a Random Access Memory (RAM)), and a non-volatile memory (e.g., a flash memory, a Hard Disk Drive (HDD), or a solid-state drive (SSD); the memory may also comprise a combination of memories of the kind described above. The memory may have stored therein a program or code, which a processor in the network element may implement by executing to implement the functions of the network element.
The transceiver 403 may be configured to receive or transmit data, and the transceiver may transmit data to a terminal device or other network-side devices under the control of the processor; and the transceiver receives data sent by terminal equipment or other network side equipment under the control of the processor.
In an embodiment of the present application, the transceiver may be configured to implement the method steps for receiving the first transmission request or sending the first system message in the foregoing embodiments. The functions to be implemented by the receiving unit 201 may be implemented by the transceiver 403 of the terminal device, or implemented by the transceiver 403 controlled by the processor 401; the functions to be implemented by the sending unit 203 may also be implemented by the transceiver 403 of the terminal device, or may also be implemented by the transceiver 403 controlled by the processor 401; the functions to be performed by the processing unit 202 may be implemented by the processor 401.
Fig. 5 is a schematic structural diagram of an embodiment of a terminal device according to the present application. The terminal device may be the terminal device in any of the foregoing embodiments, and is configured to implement the method steps in the foregoing embodiments.
As shown in fig. 5, the network side device may include a processor 501, a memory 502, and a transceiver module, which may include a receiver 503, a transmitter 504, an antenna 505, and other components. The network side device may further include more or fewer components, or combine some components, or arrange different components, which is not limited in the present invention.
The processor 501 is a control center of the terminal device, connects various parts of the entire terminal device with various interfaces and lines, and executes various functions of the terminal device and/or processes data by running or executing software programs and/or modules stored in the memory 502 and calling data stored in the memory. The processor 501 may be composed of an Integrated Circuit (IC), for example, a single packaged IC, or a plurality of packaged ICs connected with the same or different functions. For example, the processor may include only a Central Processing Unit (CPU), or may be a combination of a GPU, a Digital Signal Processor (DSP), and a control chip (e.g., a baseband chip) in the transceiver module. In the embodiments of the present application, the CPU may be a single arithmetic core or may include multiple arithmetic cores.
The transceiver module is used for establishing a communication channel, so that the terminal equipment is connected to the receiving equipment through the communication channel, and data transmission between the terminal equipment is realized. The transceiver module may include a Wireless Local Area Network (WLAN) module, a bluetooth module, a baseband (base band) module, and other communication modules, and a Radio Frequency (RF) circuit corresponding to the communication module, and is configured to perform wireless local area network communication, bluetooth communication, infrared communication, and/or cellular communication system communication, such as Wideband Code Division Multiple Access (WCDMA) and/or High Speed Downlink Packet Access (HSDPA). The transceiver module is used for controlling communication of each component in the terminal equipment and can support direct memory access (direct memory access).
In various embodiments of the present application, various ones of the transceiver modules are typically in the form of integrated circuit chips (integrated circuit chips) and may be selectively combined without including all of the transceiver modules and corresponding antenna groups. For example, the transceiver module may include only a baseband chip, a radio frequency chip, and a corresponding antenna to provide communication functions in a cellular communication system. The terminal device may be connected to a cellular network (cellular network) or the internet (internet) via a wireless communication connection established by the transceiver module, such as a wireless local area network access or a WCDMA access. In some optional embodiments of the present application, the communication module, e.g., the baseband module, in the transceiver module may be integrated into a processor, typically an APQ + MDM series platform as provided by Qualcomm corporation. The radio frequency circuit is used for receiving and sending signals in the process of information transceiving or conversation. For example, after receiving the downlink information of the network side device, the downlink information is sent to the processor for processing; in addition, the data for designing uplink is sent to the network side equipment. Typically, the radio frequency circuitry includes well-known circuitry for performing these functions, including but not limited to an antenna system, a radio frequency transceiver, one or more amplifiers, a tuner, one or more oscillators, a digital signal processor, a codec (codec) chipset, a Subscriber Identity Module (SIM) card, memory, and so forth. In addition, the radio frequency circuitry may also communicate with networks and other devices via wireless communications. The wireless communication may use any communication standard or protocol, including but not limited to global system for mobile communication (GSM), general packet radio service (gprs), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), High Speed Uplink Packet Access (HSUPA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
In an embodiment of the present application, the transceiver module may be configured to implement the method steps for receiving the first transmission request or sending the first system message in the foregoing embodiments. The functions to be implemented by the receiving unit 301 may be implemented by a transceiver module of the terminal device, or implemented by a transceiver module controlled by the processor 401; the functions to be implemented by the sending unit 303 may also be implemented by a transceiver module of the terminal device, or may also be implemented by the transceiver module controlled by the processor 401; the functions to be performed by the processing unit 202 may be implemented by the processor 401.
In a specific implementation, the present application further provides a computer storage medium, where the computer storage medium may store a program, and the program may include some or all of the steps in the embodiments of the calling method provided in the present application when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM) or a Random Access Memory (RAM).
Those skilled in the art will clearly understand that the techniques in the embodiments of the present application may be implemented by way of software plus a required general hardware platform. Based on such understanding, the technical solutions in the embodiments of the present application may be embodied in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may include a personal computer, a server, or a network-side device, etc.) to execute the method described in the embodiments or some parts of the embodiments of the present application.
The same and similar parts in the various embodiments in this specification may be referred to each other. Especially, for the … … embodiment, since it is basically similar to the method embodiment, the description is simple, and the relevant points can be referred to the description in the method embodiment.
The above-described embodiments of the present application do not limit the scope of the present application.
Claims (8)
1. A method for sending a system message, comprising:
network side equipment receives a first transmission request, wherein the first transmission request is used for requesting a first system message;
the network side equipment judges whether a first wireless resource amount consumed by broadcasting and/or multicasting the first system message is less than a second wireless resource amount consumed by unicast transmission of the first system message to each terminal equipment requesting to acquire the first system message;
if the first wireless resource amount is less than the second wireless resource amount, the network side equipment sends the first system message in a broadcast and/or multicast mode;
and if the first wireless resource amount is not less than the second wireless resource amount, the network side equipment sends the first system message in a unicast mode.
2. The method of claim 1, wherein the network side device sending the first system message in a broadcast and/or multicast manner comprises:
and the network side equipment sends the first system message on preset system message transmission resources in a broadcast and/or multicast mode.
3. The method of claim 1 or 2, wherein the first transmission request comprises:
a first beacon, the first beacon being configured to request the first system message; alternatively, the first and second electrodes may be,
a first preamble sequence, which is used to request the first system message; alternatively, the first and second electrodes may be,
a first scheduling request message for requesting the first system message; alternatively, the first and second electrodes may be,
a radio resource control connection request carrying an index number of the first system message, the index number being used for requesting the first system message; alternatively, the first and second electrodes may be,
data information scrambled by using a first Radio Network Temporary Identifier (RNTI), wherein the first RNTI is used for requesting the first system message; alternatively, the first and second electrodes may be,
a transmission request sent by a network side device on a first uplink transmission resource, where the first uplink transmission resource corresponds to the first system message; alternatively, the first and second electrodes may be,
and the terminal equipment identification is used for requesting the first system message.
4. The method of claim 1, wherein the network side device sending the first system message in a broadcast and/or multicast manner comprises:
and the network side equipment broadcasts and/or multicasts the first system message scrambled by the first RNTI.
5. A network side device, characterized by comprising
A receiving unit, configured to receive a first transmission request, where the first transmission request is used to request a first system message;
a processing unit, configured to determine whether a first amount of radio resources consumed for sending the first system message by broadcasting and/or multicasting is less than a second amount of radio resources consumed for sending the first system message to each terminal device requesting to acquire the first system message by unicast;
a sending unit, configured to send the first system message in a broadcast and/or multicast manner when the first amount of radio resources is less than the second amount of radio resources; and when the first wireless resource amount is not less than the second wireless resource amount, unicast-sending the first system message.
6. The network-side device of claim 5,
the sending unit is further configured to send the first system message in a broadcast and/or multicast manner on a preset resource for system message transmission.
7. The network-side device of claim 5 or 6, wherein the first transmission request comprises:
a first beacon, the first beacon being configured to request the first system message; alternatively, the first and second electrodes may be,
a first preamble sequence, which is used to request the first system message; alternatively, the first and second electrodes may be,
a first scheduling request message for requesting the first system message; alternatively, the first and second electrodes may be,
a radio resource control connection request carrying an index number of the first system message, the index number being used for requesting the first system message; alternatively, the first and second electrodes may be,
data information scrambled by using a first Radio Network Temporary Identifier (RNTI), wherein the first RNTI is used for requesting the first system message; alternatively, the first and second electrodes may be,
a transmission request sent by a network side device on a first uplink transmission resource, where the first uplink transmission resource corresponds to the first system message; alternatively, the first and second electrodes may be,
and the terminal equipment identification is used for requesting the first system message.
8. The network-side device of claim 5,
the sending unit is further configured to broadcast and/or multicast the first system message scrambled by the first RNTI.
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| CN201610666662.1A CN107734466B (en) | 2016-08-12 | 2016-08-12 | System message sending method, system message obtaining method, network side equipment and terminal equipment |
| PCT/CN2017/097035 WO2018028663A1 (en) | 2016-08-12 | 2017-08-11 | System message sending method, system message obtaining method, network side device, and terminal device |
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| WO2021026835A1 (en) * | 2019-08-14 | 2021-02-18 | 华为技术有限公司 | System information acquisition method, and sending method and apparatus |
| WO2021046816A1 (en) * | 2019-09-12 | 2021-03-18 | 华为技术有限公司 | Communication method and apparatus |
| CN113382429B (en) * | 2021-06-22 | 2022-07-22 | 展讯半导体(成都)有限公司 | Wireless communication control method, device, system, electronic device, and storage medium |
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| WO2014092429A1 (en) * | 2012-12-10 | 2014-06-19 | 엘지전자 주식회사 | Method for transmitting system information in wireless access system supporting ultrahigh frequency and device for supporting same |
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| US10200920B2 (en) * | 2015-02-10 | 2019-02-05 | Qualcomm Incorporated | On-demand system information |
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| CN102318409A (en) * | 2009-02-25 | 2012-01-11 | 摩托罗拉移动公司 | Delivery of system information in cordless communication network |
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