CN114079926A - Resource allocation method and device - Google Patents

Resource allocation method and device Download PDF

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Publication number
CN114079926A
CN114079926A CN202010794460.1A CN202010794460A CN114079926A CN 114079926 A CN114079926 A CN 114079926A CN 202010794460 A CN202010794460 A CN 202010794460A CN 114079926 A CN114079926 A CN 114079926A
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China
Prior art keywords
resource
message
bandwidth
information
terminal equipment
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CN202010794460.1A
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Chinese (zh)
Inventor
陈艳红
江世宇
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Datang Mobile Communications Equipment Co Ltd
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Datang Mobile Communications Equipment Co Ltd
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Priority to CN202010794460.1A priority Critical patent/CN114079926A/en
Publication of CN114079926A publication Critical patent/CN114079926A/en
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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W16/00Network planning, e.g. coverage or traffic planning tools; Network deployment, e.g. resource partitioning or cells structures
    • H04W16/02Resource partitioning among network components, e.g. reuse partitioning
    • H04W16/10Dynamic resource partitioning
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W24/00Supervisory, monitoring or testing arrangements
    • H04W24/02Arrangements for optimising operational condition
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W28/00Network traffic management; Network resource management
    • H04W28/02Traffic management, e.g. flow control or congestion control
    • H04W28/06Optimizing the usage of the radio link, e.g. header compression, information sizing, discarding information
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/04Wireless resource allocation
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W72/00Local resource management
    • H04W72/12Wireless traffic scheduling

Abstract

The embodiment of the invention provides a resource allocation method and device. In the method, network equipment generates a system message and sends the system message to terminal equipment; the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection. According to the method, before the terminal equipment completes the RRC connection, the network equipment can flexibly configure the resource indication information in the system message, and the target downlink message is transmitted to the terminal equipment by using the resource indicated by the resource indication information.

Description

Resource allocation method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to a resource allocation method and apparatus.
Background
In a mobile communication system, before a terminal device accesses a certain cell in the system, the terminal device obtains a system message of the cell, and then determines how the cell is configured according to the system message, so that the terminal device can normally work in the cell. The System Information mainly comprises basic System Information and other System Information, wherein the basic System Information comprises Master Information Blocks (MIBs) and System Information types 1-9 (System Information Block l-System Information Block 9, SIB 1-SIB 9).
In the standard (3 GPP) of New Radio Access Technology (NR), a network device broadcasts a Synchronization Signal Block (SSB), where the SSB carries a Primary Synchronization Signal (PSS), a Secondary Synchronization Signal (SSS), and a Physical Broadcast Channel (PBCH), and the terminal device acquires, through the PBCH, MIB including configuration information (e.g., a bandwidth size of a core 0, a frequency domain position, etc.) of a Control Resource Set 0(Control Resource Set, core 0) and configuration information (e.g., a Physical Downlink Control Channel (PDCCH, etc.) of a Physical Downlink Control Channel (PDCCH) of SIB 1.
Further, before performing Radio Resource Control RRC Connection Setup (Radio Resource Control Connection Setup/Resource/Establishment), the network device sends the SIB1 to the terminal device on the PDCCH by using a Bandwidth configured in the Coreset0, where the SIB1 includes Resource configuration information of Downlink data after the RRC Connection is completed, and a Bandwidth of a Downlink (DL) Bandwidth Part (BWP) indicated by the Resource configuration information is greater than a Bandwidth configured in the Coreset 0. And when the terminal equipment determines that the cell normally works according to the acquired MIB and the SIB1, the terminal equipment establishes RRC connection with the network equipment to realize data transmission.
However, the bandwidth of DL BWP indicated by the resource configuration information contained in the SIB1 can not be used after the RRC connection setup, so that before the RRC connection setup is completed (including the RRC connection setup), the network device cannot flexibly configure resource indication information in the SIB1 according to the actual situation of the channel where the terminal device is located, and the network device still sends downlink message to the terminal device using the bandwidth configured in Coreset 0. Due to the small bandwidth configured in Coreset0, the demodulation performance of the downlink message before the RRC connection establishment is completed is poor, and the terminal device cannot correctly unwrap the downlink message after receiving the downlink message.
Disclosure of Invention
The application provides a resource allocation method for improving the demodulation performance of a downlink message before RRC connection establishment is completed.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, an embodiment of the present application provides a resource allocation method, which specifically includes the following steps:
the network equipment generates a system message, wherein the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection;
and the network equipment sends the system message to the terminal equipment.
In a possible implementation manner, before the network device sends the system message to the terminal device, the method further includes:
the network equipment sends main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
In one possible embodiment, the method further comprises:
and the network equipment sends the target downlink message to the terminal equipment by using the bandwidth of the resource indicated by the resource indication information.
In one possible embodiment, the target downlink message includes at least one or a combination of the following: random access response messages, connection configuration messages, other system messages.
In one possible embodiment, the method further comprises: after the RRC connection is completed, the network device sends downlink data to the terminal device using a bandwidth of an activated third resource, where the third resource is a resource configured by the network device in the connection configuration message; or
The network equipment sends downlink data to the terminal equipment by using the bandwidth of default resources, wherein the default resources are resources which are configured by the network equipment in the connection configuration message in a default mode; or
And the network equipment sends downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
In a second aspect, an embodiment of the present application provides a resource configuration apparatus, including:
a processing unit, configured to generate a system message, where the system message includes resource indication information, where the resource indication information is used to indicate a resource used by a target downlink message, and the target downlink message is a downlink message before a terminal device completes radio resource control RRC connection;
and the communication unit is used for sending the system message to the terminal equipment.
In a possible implementation, the communication unit is further configured to: before sending the system message to the terminal equipment, sending main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
In a possible implementation manner, the communication unit sends the target downlink message to the terminal device using a bandwidth of a resource indicated by the resource indication information.
In one possible embodiment, the target downlink message includes at least one or a combination of the following: random access response messages, connection configuration messages, other system messages.
In a possible implementation, the communication unit is further configured to: after the RRC connection is completed, sending downlink data to the terminal equipment by using the bandwidth of activated third resources, wherein the third resources are resources configured in the connection configuration message by the network equipment; or
Sending downlink data to the terminal device by using the bandwidth of a default resource, wherein the default resource is a resource which is configured by the network device in the connection configuration message in a default manner; or
And sending downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
In a third aspect, an embodiment of the present application provides a computer-readable storage medium, including: the computer-readable storage medium has stored thereon a computer program which, when run on an electronic device, causes the communication device to perform any one of the possible implementations of any of the above aspects.
In a fourth aspect, embodiments of the present application provide a computer program comprising instructions that, when executed on a computer, cause the computer to perform any one of the possible implementations of any one of the above aspects.
In a fifth aspect, the present application provides a chip, where the chip is configured to read a computer program stored in a memory, and perform any one of the possible implementations of the foregoing aspects.
In the technical scheme of the embodiment of the application, the network equipment generates a system message, the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection; and the network equipment sends the system message to the terminal equipment. In the method, before the terminal equipment completes the RRC connection, the network equipment can flexibly configure the resource indication information in the system message, so that the target downlink message is transmitted to the terminal equipment by using the resource indicated by the resource indication information.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication system provided in an embodiment of the present invention;
fig. 2 is a schematic flowchart of a resource allocation method according to an embodiment of the present invention;
FIG. 3 is a flowchart illustrating an example of a resource allocation method according to an embodiment of the present invention;
FIG. 4 is a flowchart illustrating another example of a method for configuring resources according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a bandwidth part BWP provided in an embodiment of the present invention;
fig. 6 is a schematic diagram of a resource allocation apparatus according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a resource allocation device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be described in further detail with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The embodiment of the application provides a resource allocation method for improving the demodulation performance of a downlink message before RRC connection establishment is completed.
The method and the device are based on the same inventive concept, and because the principles of solving the problems of the method and the device are similar, the implementation of the device and the method can be mutually referred, and repeated parts are not repeated.
In the technical scheme of the embodiment of the application, the network equipment generates a system message, the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection; and the network equipment sends the system message to the terminal equipment. In the method, before the terminal equipment completes the RRC connection, the network equipment can flexibly configure the resource indication information in the system message, so that the target downlink message is transmitted to the terminal equipment by using the resource indicated by the resource indication information.
Some terms in the embodiments of the present application will be explained below to facilitate understanding by those skilled in the art.
1. Network devices, including, for example, Access Network (AN) devices, such as base stations (e.g., access points), may refer to devices in AN access network that communicate with wireless terminal devices over one or more cells over the air, or, for example, a network device in vehicle-to-all (V2X) technology is a Road Side Unit (RSU). The base station may be configured to interconvert received air frames and IP packets as a router between the terminal device and the rest of the access network, which may include an IP network. The RSU may be a fixed infrastructure entity supporting the V2X application and may exchange messages with other entities supporting the V2X application. The network device may also coordinate attribute management for the air interface. For example, the network device may include an evolved Node B (NodeB or eNB or e-NodeB) in a Long Term Evolution (LTE) system or an advanced long term evolution (LTE-a), or may also include a next generation Node B (gNB) in a New Radio (NR) system (also referred to as an NR system) of a fifth generation mobile communication technology (5G), or may also include a Centralized Unit (CU) and a Distributed Unit (DU) in a Cloud RAN network (Cloud RAN) system, which is not limited in the embodiments of the present application.
2. A terminal device is a device that provides voice and/or data connectivity to a user. The terminal device may also be referred to as a User Equipment (UE), a Mobile Station (MS), a Mobile Terminal (MT), and so on.
For example, the terminal device may be a handheld device, a vehicle-mounted device, or the like having a wireless connection function. Currently, some examples of terminal devices are: a mobile phone (mobile phone), a tablet computer, a notebook computer, a palm top computer, a Mobile Internet Device (MID), a wearable device, a Virtual Reality (VR) device, an Augmented Reality (AR) device, a wireless terminal in industrial control (industrial control), a wireless terminal in self driving (self driving), a wireless terminal in remote surgery (remote medical supply), a wireless terminal in smart grid (smart grid), a wireless terminal in transportation safety (smart security), a wireless terminal in city (smart city), a wireless terminal in home (smart home), and the like.
3. In the description of the present application, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor order.
Embodiments of the present application will be described below with reference to the drawings.
Fig. 1 illustrates a communication system to which a resource allocation method provided in the present application is applied. As shown in the figure, the communication system includes a network device (for example, a base station 101) and a core network 102. The interface between the base station 101 and the core network 102 is referred to as an S1 interface, and the base station 101 and the core network 102 communicate via an S1 interface. The base station 101 may manage a plurality of cells (e.g., cell a and cell B), and the terminal device 103 may access any one of the cells to access the network to implement wireless communication.
In this communication system, before the terminal device 103 accesses a certain cell (taking a cell a as an example), the base station 101 broadcasts a synchronization signal block SSB, where the SSB carries a primary synchronization signal PSS, a secondary synchronization signal SSS, and a Physical broadcast Channel PBCH, the terminal device 103 may obtain configuration information of a primary system information block MIB in a system message and a Physical Downlink control Channel PDCCH of a system message type SIB1 through the PBCH, and the terminal device 103 obtains configuration information of a control resource set Coreset0 according to the MIB and detects the PDCCH in the Coreset0 to determine a Physical Downlink Shared Channel (PDSCH) for carrying the SIB 1.
Further, the terminal device 103 receives the SIB1 on the PDSCH using the bandwidth size configured in Coreset 0. The SIB1 includes information required for the terminal device 103 to access cell a and scheduling information of other SIBs, and the SIB1 also includes resource configuration information required for data transmission when the terminal device 103 is in a connected state. The terminal device 103 determines how the cell a is configured according to the MIB and the SIB1, thereby ensuring that the cell a can work normally.
After determining that the terminal device 103 can normally operate in the cell a, the terminal device 103 initiates an RRC connection establishment request to the base station 101. In the RRC connection establishment process, the terminal device 103 and the base station 101 both use the bandwidth configured in Coreset0 to transmit information. After the RRC connection is established, the base station 101 sends downlink data to the terminal device 103 using the bandwidth indicated by the resource configuration information in the SIB 1.
As can be seen from the above, before the RRC connection is established (including when the RRC connection is established), the base station 101 sends a downlink message to the terminal device 103 using the bandwidth configured in Coreset 0. Since the bandwidth configured in Coreset0 is small, and thus the demodulation performance of the downlink message before the RRC connection is completed is poor, the terminal device 103 cannot correctly unwrap the downlink message after receiving the downlink message.
An embodiment of the present application provides a resource allocation method, which may be applied to a communication system as shown in fig. 1, and a flow of the resource allocation method provided in the embodiment of the present application is described in detail with reference to fig. 2.
S201: the network equipment generates a system message, wherein the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection.
Optionally, the target downlink message includes at least one or a combination of the following: random access response messages, connection configuration messages, other system messages.
S202: and the network equipment sends the system message to the terminal equipment.
In one embodiment, before the network device sends the system message to the terminal device, the method further includes: the network equipment sends main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information; the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
In an embodiment, the network device sends the target downlink message to the terminal device by using a bandwidth of a resource indicated by the resource indication information.
Specifically, when the resource indication information indicates that the resource used by the target downlink message is a first resource, the network device sends the target downlink message to the terminal device by using the bandwidth of the first resource before the RRC connection is completed; when the resource indication information indicates that the resource used by the target downlink message is a second resource, the network device sends the target downlink message to the terminal device by using the bandwidth of the second resource before the RRC connection is completed.
Optionally, the master information may be a master information block MIB, and the system message may be a system message type SIB 1; the bandwidth of the first resource may be a bandwidth configured in a set of control resources Coreset0 in the MIB, and the bandwidth of the second resource may be a bandwidth of an initial downlink bandwidth part DL BWP included in the SIB 1.
In one embodiment, after completing the RRC connection, the network device sends downlink data to the terminal device using a bandwidth of an activated third resource, where the third resource is a resource configured by the network device in the connection configuration message; or
The network equipment sends downlink data to the terminal equipment by using the bandwidth of default resources, wherein the default resources are resources which are configured by the network equipment in the connection configuration message in a default mode; or
And the network equipment sends downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
Specifically, when the RRC connection is established, the network device configures a third resource in the connection configuration message and activates the third resource. After the RRC connection is completed, the network equipment transmits downlink data to the terminal equipment by using the bandwidth of the activated third resource; or
The network device does not configure a third resource in the connection configuration message when the RRC connection is established. After the RRC connection is completed, the network equipment sends downlink data to the terminal equipment by using the bandwidth of the default resource in the connection configuration message; or
When the RRC connection is established, the network equipment does not configure a third resource and does not configure a default resource in the connection configuration message. After the RRC connection is completed, the network device sends downlink data to the terminal device using the bandwidth of the second resource indicated by the second resource configuration information in the system message.
According to the above, in the present application, the network device generates a system message and sends the system message to the terminal device; the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection. According to the method, before the terminal equipment completes the RRC connection, the network equipment can flexibly configure the resource indication information in the system message, and the target downlink message is transmitted to the terminal equipment by using the resource indicated by the resource indication information.
Based on the embodiment shown in fig. 2, the present application further provides an example of a resource allocation method. Before the RRC connection establishment is completed, the resource indication information in the system message (taking SIB1 information as an example) is used to indicate that the resource used by the target downlink message is a first resource, and the network device sends the target downlink message to the terminal device using a bandwidth of the first resource (taking a bandwidth configured in Coreset0 as an example). The specific flow of this embodiment is shown in fig. 3:
step 301: the network device sends master information (taking MIB information as an example) to the terminal device, and the terminal device receives the MIB information. The MIB message is configured with the bandwidth size and location of Coreset0, and Coreset0 is used for scheduling system information.
Step 302: the network device generates system information (taking SIB1 information as an example), and the resource indication information contained in the SIB1 indicates that target information uses the Coreset0 resource, where the target downlink message is a downlink message before the terminal device completes Radio Resource Control (RRC) connection.
Step 303: the network device sends the SIB1 information to the terminal device using the bandwidth configured in Coreset0, and the terminal device receives the SIB1 information. Wherein, the SIB1 further includes second resource configuration information (for example, an initial DL BWP), and a bandwidth of the initial DL BWP indicated by the second resource configuration information is greater than a bandwidth configured in the Coreset 0.
The above steps S301 to S303 are processes of acquiring the downlink system message before the terminal device establishes the RRC connection.
Step 304: and the terminal equipment sends a random access request msg1 to the network equipment.
Step 305: after receiving the msg1, the network device sends a random access response msg2 to the terminal device, where the msg2 is carried on a PDSCH, and the network device determines that the resource indication information in the SIB1 indicates that target downlink information uses the Coreset0 resource, and then the network device sends the msg2 to the terminal device using the bandwidth configured in the Coreset 0. And the terminal equipment detects the PDSCH on downlink frequency domain resources for bearing the msg2, then determines the position of the PDSCH on a frequency domain according to scheduling information on the PDCCH, and receives the msg2 on the PDSCH.
Step 306: the terminal equipment sends a connection establishment request message msg3 to the network equipment, and the network equipment receives the msg 3.
Step 307: the network equipment determines that the resource indication information contained in the SIB1 indicates that target information uses the Coreset0 resource, the network equipment uses the bandwidth of the Coreset0 to send connection configuration information msg4 to the terminal equipment, and the terminal equipment enters a connected state after receiving the msg 4.
Step 308: the terminal equipment sends a connection establishment completion message msg5 to the network equipment, and the network equipment receives the msg 5.
The above steps S304 to S308 are performed to establish the random access procedure of the RRC connection for the terminal device, and the terminal device enters the RRC connection state from an idle state or an inactive state.
Step 309: and the network equipment uses corresponding bandwidth to send downlink data to the terminal equipment according to the bandwidth condition configured in the msg 4.
Specifically, after the network device determines that the terminal device is in the connected state, the method further includes:
according to Step307, if the network device determines that a third resource (for example, BWP) is configured in the msg4 and is in an active state, the network device sends downlink data to the terminal device using the bandwidth of the BWP; if the network device configures a third resource (for example, BWP) in the msg4 and is in an inactive state, the network device sends downlink data to the terminal device using a default bandwidth of BWP, where the default resource is a resource that is configured by the network device by default in the connection configuration message; if the network device does not configure the third resource (BWP for example) in the msg4 and does not configure the default BWP, the network device sends downlink data to the terminal device using the bandwidth of the second resource (initial DL BWP).
In this embodiment, the bandwidth size used for downlink transmission (the bandwidth configured in Coreset0) is the default bandwidth size used for configuring the downlink bandwidth in the initial access procedure, and is the bandwidth size used by the downlink message executed according to the 3GPP protocol standard, and for a terminal device in poor channel conditions, after SIB1, the bandwidth size configured in Coreset0 is used for the downlink message before the RRC connection is completed, and there is a high possibility that the downlink message demodulation performance is poor.
Based on the embodiment shown in fig. 2, the present application further provides another example of a resource configuration method, before the RRC connection establishment is completed, the resource indication information in the system message (taking SIB1 as an example) is used to indicate that a resource used by the target downlink message is a second resource, and the network device sends the target downlink message to the terminal device by using a bandwidth of the second resource (taking a bandwidth of an initial DL BWP as an example). The specific flow of this embodiment is shown in fig. 4:
step 401: the network device sends master information (taking MIB information as an example) to the terminal device, and the terminal device receives the MIB information. The MIB message configures the bandwidth size and location of Coreset0, and Coreset0 is used for scheduling system information.
Step 402: the network device generates system information (taking SIB1 information as an example), where the resource indication information included in the SIB1 indicates that target downlink information uses resources of the initial DL BWP, and the target downlink information is downlink information of the terminal device before radio resource control RRC connection is completed. The bandwidth of the initial DL BWP is greater than the bandwidth configured in Coreset 0.
Step 403: the network device sends the SIB1 information to the terminal device using the bandwidth configured in Coreset0, and the terminal device receives the SIB1 information.
In steps S401 to S403, the network device sends the MIB information to the terminal device, and sends the SIB1 information to the terminal device using the bandwidth of Coreset0 in the MIB information, so as to provide required transmission resources for messages when the network device and the terminal device establish the RRC connection.
Step 404: and the terminal equipment sends a random access request msg1 to the network equipment.
Step 405: after receiving the msg1, the network device sends a random access response msg2 to the terminal device, wherein the msg2 is carried on a PDSCH, and if the network device determines that the resource indication information in the SIB1 indicates that the target information uses the resources of the initial DL BWP, the network device sends the msg2 to the terminal device using the bandwidth of the initial DL BWP. And the terminal equipment detects the PDSCH on downlink frequency domain resources for bearing the msg2, then determines the position of the PDSCH on a frequency domain according to scheduling information on the PDCCH, and receives the msg2 on the PDSCH.
Step 406: the terminal equipment sends a connection establishment request message msg3 to the network equipment, and the network equipment receives the msg 3.
Step 407: the network device determines that the resource indication information contained in the SIB1 indicates that target information uses the resource of the initial DL BWP, the network device sends connection configuration information msg4 to the terminal device using the bandwidth of the initial DL BWP, and the terminal device enters a connected state after receiving the msg 4.
Step 408: the terminal device sends a connection setup complete message msg5 to the network device, which is receiving the msg 5.
The above steps S404-S408 are a random access procedure for establishing the RRC connection, and the terminal device enters an RRC connected state from an idle state or an inactive state.
Step 409: and the network equipment uses corresponding bandwidth to send downlink data to the terminal equipment according to the bandwidth condition configured in the msg 4.
Specifically, after the network device determines that the terminal device is in the connected state, the method further includes:
according to Step407, if the network device configures a third resource (for example, BWP) in the msg4 and is in an active state, the network device sends downlink data to the terminal device using the bandwidth of the BWP;
if the network device configures a third resource (for example, BWP) in the msg4 and is in an inactive state, the network device sends downlink data to the terminal device using a default bandwidth of BWP, where the default resource is a resource that is configured by the network device by default in the connection configuration message.
If the network device does not configure the third resource (BWP for example) in the msg4 and does not configure the default BWP, the network device sends downlink data to the terminal device using the bandwidth of the second resource (initial DL BWP).
In this embodiment, the network device adds resource indication information to the system message, and according to an actual situation, the resource indication information may indicate, according to an actual situation of a channel in which the terminal device is located, a resource used by a downlink message before the terminal device completes RRC connection. In this embodiment, the bandwidth of the initial DL BWP is greater than the bandwidth configured by Coreset0, so that, in a case of a poor channel condition, the resource indication information indicates that the downlink message before the terminal device completes RRC connection uses the bandwidth of the initial DL BWP with a relatively large bandwidth, which may improve demodulation performance of the downlink message, and further ensure that the terminal device can correctly unlock the downlink message after receiving the downlink message.
In the embodiment of the present application, as shown in fig. 5, in general, the bandwidth configured in Coreset0 is smaller, and the bandwidth of the initial DL BWP includes and is larger than the bandwidth configured in Coreset 0. By flexibly configuring resource indication information in a system message SIB1, normally, the resource indication information in the system message SIB1 indicates that a target downlink message uses a first resource, namely the Coreset0, so that after SIB1 and before RRC connection is completed, a network device sends a bandwidth used by the target downlink message to a terminal device to the bandwidth configured in Coreset 0. When the channel quality of the terminal device is poor, the resource indication information in the system message SIB1 indicates that the target downlink message uses the second resource, i.e. the initial DL BWP, so that, after SIB1 and before the RRC connection is completed, the network device sends the bandwidth used by the target downlink message to the terminal device to the bandwidth of the initial DL BWP.
Based on the same technical concept, the embodiment of the present application further provides a resource allocation apparatus, and the structure of the apparatus is as shown in fig. 6. The apparatus 600 comprises: processing unit 601, communication unit 602. The apparatus 600 may be applied to the communication system shown in fig. 1, and may implement one resource allocation method shown in fig. 2 above. The functions of the various units in the apparatus 600 are described below.
A processing unit 601, configured to generate a system message, where the system message includes resource indication information, where the resource indication information is used to indicate a resource used by a target downlink message, and the target downlink message is a downlink message before a terminal device completes RRC connection;
a communication unit 602, configured to send the system message to the terminal device.
In one embodiment, the communication unit 602 is further configured to: before sending the system message to the terminal equipment, sending main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
In an embodiment, the communication unit 602 sends the target downlink message to the terminal device by using a bandwidth of a resource indicated by the resource indication information.
In one embodiment, the targeted downlink message includes at least one or a combination of: random access response messages, connection configuration messages, other system messages.
In one embodiment, the communication unit 602 is further configured to: after the RRC connection is completed, sending downlink data to the terminal equipment by using the bandwidth of activated third resources, wherein the third resources are resources configured in the connection configuration message by the network equipment; or
Sending downlink data to the terminal device by using the bandwidth of a default resource, wherein the default resource is a resource which is configured by the network device in the connection configuration message in a default manner; or
And sending downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
Based on the same technical concept, embodiments of the present application further provide a resource configuration device, where the communication device may be applied to the communication system shown in fig. 1, and may implement a resource configuration method shown in fig. 2. Referring to fig. 7, the apparatus 700 includes: a processor 701 and a communication module 702. The processor 701, the communication module 702, and the memory 703 are connected to each other.
Optionally, the processor 701, the communication module 702, and the memory 703 are connected to each other through a bus 704. The bus 704 may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.
A processor 701, configured to generate a system message, where the system message includes resource indication information, where the resource indication information is used to indicate a resource used by a target downlink message, and the target downlink message is a downlink message before a terminal device completes a radio resource control RRC connection;
a communication module 702, configured to send the system message to the terminal device.
In one embodiment, the communication module 702 is further configured to: before sending the system message to the terminal equipment, sending main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
In an embodiment, the communication module 702 sends the target downlink message to the terminal device by using a bandwidth of a resource indicated by the resource indication information.
In one embodiment, the targeted downlink message includes at least one or a combination of: random access response messages, connection configuration messages, other system messages.
In one embodiment, the communication module 702 is further configured to: after the RRC connection is completed, sending downlink data to the terminal equipment by using the bandwidth of activated third resources, wherein the third resources are resources configured in the connection configuration message by the network equipment; or
Sending downlink data to the terminal device by using the bandwidth of a default resource, wherein the default resource is a resource which is configured by the network device in the connection configuration message in a default manner; or
And sending downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
Based on the above embodiments, the present application further provides a computer-readable storage medium, where a computer program is stored, and when the computer program is executed by a computer, the computer causes the computer to execute a resource allocation method provided in the embodiments shown in fig. 2 to 4.
Based on the foregoing embodiments, an embodiment of the present application further provides a chip, where the chip is used to read a computer program stored in a memory, and implement the resource allocation method provided in the embodiments shown in fig. 2 to 4.
Based on the foregoing embodiments, an embodiment of the present application provides a chip system, where the chip system includes a processor, and is used to support a computer device to implement the functions of the device in the embodiment shown in fig. 5. In one possible design, the system-on-chip further includes a memory for storing programs and data necessary for the computer device. The chip system may be constituted by a chip, or may include a chip and other discrete devices.
To sum up, in the technical solution of the embodiment of the present application, a network device generates a system message, where the system message includes resource indication information, where the resource indication information is used to indicate a resource used by a target downlink message, and the target downlink message is a downlink message before a terminal device completes a radio resource control RRC connection; and the network equipment sends the system message to the terminal equipment. In the method, before the terminal equipment completes the RRC connection, the network equipment can flexibly configure the resource indication information in the system message, so that the target downlink message is transmitted to the terminal equipment by using the resource indicated by the resource indication information.
As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims (12)

1. A method for resource allocation, comprising:
the network equipment generates a system message, wherein the system message comprises resource indication information, the resource indication information is used for indicating resources used by a target downlink message, and the target downlink message is a downlink message before the terminal equipment completes Radio Resource Control (RRC) connection;
and the network equipment sends the system message to the terminal equipment.
2. The method of claim 1, wherein prior to the network device sending the system message to the terminal device, the method further comprises:
the network equipment sends main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
3. The method of claim 1, wherein the method further comprises:
and the network equipment sends the target downlink message to the terminal equipment by using the bandwidth of the resource indicated by the resource indication information.
4. The method of any of claims 1-3, wherein the targeted downlink message comprises at least one or a combination of: random access response messages, connection configuration messages, other system messages.
5. The method of claim 4, wherein the method further comprises: after the RRC connection is completed, the network device sends downlink data to the terminal device using a bandwidth of an activated third resource, where the third resource is a resource configured by the network device in the connection configuration message; or
The network equipment sends downlink data to the terminal equipment by using the bandwidth of default resources, wherein the default resources are resources which are configured by the network equipment in the connection configuration message in a default mode; or
And the network equipment sends downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
6. A resource allocation apparatus, comprising:
a processing unit, configured to generate a system message, where the system message includes resource indication information, where the resource indication information is used to indicate a resource used by a target downlink message, and the target downlink message is a downlink message before a terminal device completes radio resource control RRC connection;
and the communication unit is used for sending the system message to the terminal equipment.
7. The apparatus of claim 6, wherein the communication unit is further to: before sending the system message to the terminal equipment, sending main information to the terminal equipment, wherein the main information comprises first resource configuration information; the system message further includes second resource configuration information, and the bandwidth of the second resource indicated by the second resource configuration information is greater than the bandwidth of the first resource indicated by the first resource configuration information;
the resource indication information is used to indicate that the resource used by the target downlink message is the first resource or the second resource.
8. The apparatus of claim 6, wherein the communication unit transmits the target downlink message to the terminal device using a bandwidth of a resource indicated by the resource indication information.
9. The apparatus of any one of claims 6-8, wherein the target downlink message comprises at least one or a combination of: random access response messages, connection configuration messages, other system messages.
10. The apparatus of claim 9, wherein the communication unit is further to: after the RRC connection is completed, sending downlink data to the terminal equipment by using the bandwidth of activated third resources, wherein the third resources are resources configured in the connection configuration message by the network equipment; or
Sending downlink data to the terminal device by using the bandwidth of a default resource, wherein the default resource is a resource which is configured by the network device in the connection configuration message in a default manner; or
And sending downlink data to the terminal equipment by using the bandwidth of a second resource, wherein the second resource is the resource indicated by the second resource configuration information in the system message.
11. A computer-readable storage medium having computer-executable instructions stored thereon for causing a computer to perform the method of any one of claims 1-5.
12. A chip for reading a computer program stored in a memory for performing the method according to any one of claims 1 to 5.
CN202010794460.1A 2020-08-10 2020-08-10 Resource allocation method and device Pending CN114079926A (en)

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