CN108307501B - Method and equipment for determining radio link bearing - Google Patents
Method and equipment for determining radio link bearing Download PDFInfo
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- CN108307501B CN108307501B CN201610670259.6A CN201610670259A CN108307501B CN 108307501 B CN108307501 B CN 108307501B CN 201610670259 A CN201610670259 A CN 201610670259A CN 108307501 B CN108307501 B CN 108307501B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/04—Wireless resource allocation
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/20—Control channels or signalling for resource management
- H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
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Abstract
The invention discloses a method and equipment for determining radio link bearing, which are used for realizing Reflective QoS function in an access network. The method for determining the radio link bearer comprises the following steps: the user equipment acquires a mapping relation between a downlink data stream and a radio link bearer and acquires a corresponding relation between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream; the user equipment determines to send an uplink data packet to be sent through a first radio link bearer according to the mapping relation and the corresponding relation; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for determining a radio link bearer.
Background
A new function, namely, a Reflective Quality of Service (QoS) function is provided in a fifth generation mobile communication system (5G) system. The Reflective QoS means that, for a service including a downlink data flow (flow) and an uplink data flow, if a core network indicates that a Reflective QoS function is turned on, a User Equipment (UE) may obtain a QoS parameter used by the uplink data flow of the service according to an authorized QoS parameter allocated to the downlink data flow of the service, so that it is not necessary to exclusively allocate the QoS parameter to the uplink data flow of the service.
However, the QoS of the current Radio link bearer (RB) is generally unknown to the ue, and even if the ue knows the QoS parameter of a certain uplink data stream according to the Reflective QoS, the ue does not know to which RB to map the uplink data stream for transmission because the QoS parameter of the RB is unknown.
That is, the access network of the 5G system cannot implement the Reflective QoS function at present.
Disclosure of Invention
The embodiment of the invention provides a method and equipment for determining a radio link bearer, which are used for realizing a Reflective QoS function in an access network.
The embodiment of the invention provides the following specific technical scheme:
in a first aspect, an embodiment of the present invention provides a method for determining a radio link bearer, including:
the user equipment acquires a mapping relation between a downlink data stream and a radio link bearer and acquires a corresponding relation between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream;
the user equipment determines to send an uplink data packet to be sent through a first radio link bearer according to the mapping relation and the corresponding relation; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
In a possible embodiment, in the correspondence, an uplink data stream corresponding to one downlink data stream adopts the same quality of service as the downlink data stream.
In a possible embodiment, the method further comprises:
the user equipment receives a notification message sent by network equipment, wherein the notification message carries indication information, the indication information is used for indicating a downlink data stream with a reflection service quality function, or the indication information is used for indicating a radio link bearer with the reflection service quality function; the reflection qos function is configured to indicate that an uplink data stream having a correspondence with a downlink data stream has the same qos as the downlink data stream.
In a possible embodiment, the obtaining, by the ue, a mapping relationship between a downlink data stream and a radio link bearer includes:
and the user equipment acquires the mapping relation carried by the notification message by analyzing the notification message.
In a possible embodiment, the obtaining, by the ue, a mapping relationship between a downlink data stream and a radio link bearer includes:
the user equipment receives a downlink data packet sent by the network equipment;
the user equipment determines a radio link bearer for carrying the downlink data packet;
the user equipment establishes the mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
In a possible embodiment, before the ue determines to send the uplink data packet to be sent through the first radio link bearer according to the mapping relationship and the corresponding relationship, the method further includes:
and the user equipment determines that the uplink data flow to which the uplink data packet belongs is the uplink data flow with the reflection service quality function started.
In a second aspect, an embodiment of the present invention provides a method for determining a radio link bearer, including:
the network equipment sends a mapping relation between a downlink data stream and a radio link bearer to user equipment to indicate the radio link bearer for bearing the downlink data stream; the mapping relationship is used for the user equipment to determine a radio link bearer carried by an uplink data packet to be sent.
In a possible embodiment, the method further comprises:
the network equipment receives the uplink data packet sent by the user equipment through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
In a third aspect, an embodiment of the present invention provides a user equipment, including:
an obtaining module, configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and obtain a corresponding relationship between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream;
a determining module, configured to determine, according to the mapping relationship and the corresponding relationship, that an uplink data packet to be sent is sent through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
In a possible embodiment, in the correspondence, an uplink data stream corresponding to one downlink data stream adopts the same quality of service as the downlink data stream.
In a possible embodiment, the user equipment further includes a receiving module;
the receiving module is used for: receiving a notification message sent by a network device, wherein the notification message carries indication information, the indication information is used for indicating a downlink data stream with a reflection service quality function opened, or the indication information is used for indicating a radio link bearer with the reflection service quality function opened; the reflection qos function is configured to indicate that an uplink data stream having a correspondence with a downlink data stream has the same qos as the downlink data stream.
In a possible embodiment, the obtaining module is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
and acquiring the mapping relation carried by the notification message by analyzing the notification message.
In a possible embodiment, the obtaining module is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
receiving a downlink data packet sent by the network equipment through the receiving module;
determining a radio link bearer for carrying the downlink data packet;
and establishing the mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
In a possible embodiment, the determining module is further configured to:
and determining that the uplink data flow to which the uplink data packet belongs is the uplink data flow with the reflection service quality function started before determining that the uplink data packet to be sent is sent through the first radio link bearer according to the mapping relation and the corresponding relation.
In a fourth aspect, an embodiment of the present invention provides a network device, including:
a sending module, configured to send a mapping relationship between a downlink data stream and a radio link bearer to a user equipment, so as to indicate the radio link bearer for carrying the downlink data stream; the mapping relationship is used for the user equipment to determine a radio link bearer carried by an uplink data packet to be sent.
In a possible embodiment, the network device further includes a receiving module;
the receiving module is used for: receiving the uplink data packet sent by the user equipment through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
In a fifth aspect, an embodiment of the present invention provides a user equipment, including a processor and a memory, where a preset program is stored in the memory, and the processor reads the program in the memory and executes the following processes according to the program:
acquiring a mapping relation between a downlink data stream and a radio link bearer, and acquiring a corresponding relation between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream;
determining to send an uplink data packet to be sent through a first radio link bearer according to the mapping relation and the corresponding relation; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
In a possible embodiment, in the correspondence, an uplink data stream corresponding to one downlink data stream adopts the same quality of service as the downlink data stream.
In a possible embodiment, the user equipment further comprises a transceiver, wherein the transceiver receives and transmits data under the control of the processor;
the processor is further configured to: receiving a notification message sent by a network device through the transceiver, where the notification message carries indication information, where the indication information is used to indicate a downlink data stream with a reflection service quality function being started, or the indication information is used to indicate a radio link bearer with the reflection service quality function being started; the reflection qos function is configured to indicate that an uplink data stream having a correspondence with a downlink data stream has the same qos as the downlink data stream.
In a possible embodiment, the processor is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
and acquiring the mapping relation carried by the notification message by analyzing the notification message.
In a possible embodiment, the processor is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
receiving a downlink data packet sent by the network equipment through the transceiver;
determining a radio link bearer for carrying the downlink data packet;
and establishing the mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
In a possible embodiment, the processor is further configured to:
and determining that the uplink data flow to which the uplink data packet belongs is the uplink data flow with the reflection service quality function started before determining that the uplink data packet to be sent is sent through the first radio link bearer according to the mapping relation and the corresponding relation.
In a sixth aspect, an embodiment of the present invention provides a network device, including a processor, a memory, and a transceiver, where the transceiver receives and transmits data under the control of the processor, the memory stores a preset program, and the processor reads the program in the memory and executes the following processes according to the program:
sending a mapping relation between a downlink data stream and a radio link bearer to user equipment through the transceiver to indicate the radio link bearer for carrying the downlink data stream; the mapping relationship is used for the user equipment to determine a radio link bearer carried by an uplink data packet to be sent.
In a possible embodiment, the processor is further configured to:
receiving, by the transceiver, the uplink data packet sent by the user equipment over a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
Based on the above technical solution, in the embodiment of the present invention, the user equipment may obtain a mapping relationship between the downlink data stream and the radio link bearer, so as to know which radio link bearer the downlink data stream is transmitted through, and the user equipment may also obtain a corresponding relationship between the downlink data stream and the uplink data stream, and according to the corresponding relationship, may know which downlink data stream the uplink data stream to be transmitted belongs to, and then the user equipment may directly transmit the uplink data packet to be transmitted on the radio link bearer for transmitting the corresponding downlink data stream, so that the user equipment may complete the transmission of the uplink data packet only according to the radio link bearer used for the downlink data stream transmission without knowing the QoS parameter of the radio link bearer, thereby implementing a Reflective QoS function in the access network, the method is simple and easy to implement. Through the Reflective QoS function, the network equipment does not need to specially allocate radio link bearers for the uplink data streams, namely, a mapping rule from the uplink data streams to the radio link bearers does not need to be additionally configured for the user equipment, and the configuration process of uplink transmission is optimized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below 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 diagram illustrating a network architecture according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for determining a radio link bearer according to an embodiment of the present invention;
fig. 3 is a flowchart of a method for determining a radio link bearer according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a user equipment according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Hereinafter, some terms in the present invention will be explained to facilitate understanding by those skilled in the art.
1) User equipment, which refers to a device that provides voice and/or data connectivity to a user, may include, for example, a handheld device having wireless connection capability, or a processing device connected to a wireless modem. The user equipment may communicate with a core Network via a Radio Access Network (RAN), and exchange voice and/or data with the RAN. The User equipment may include UE, wireless Terminal equipment, Mobile Terminal equipment, Subscriber Unit (Subscriber Unit), Subscriber Station (Subscriber Station), Mobile Station (Mobile), Remote Station (Remote Station), Access Point (AP), Remote Terminal (Remote Terminal), Access Terminal (Access Terminal), User Terminal (User Terminal), User Agent (User Agent), or User equipment (User device). For example, it may be a mobile telephone (or so-called "cellular" telephone), a computer with a mobile terminal, a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device. Examples of such devices include Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like.
2) The network device may include an access network device and a core network device, and the network device in the embodiment of the present invention mainly refers to the access network device without specific description. An access network device, such as a base station (e.g., access point), may specifically refer to a device in an access network that communicates over the air-interface, through one or more sectors, with wireless terminals. The base station may be configured to translate received air frames and IP packets into and out of communication with each other as a router between the wireless terminal device and the rest of the access network, which may include an Internet Protocol (IP) network. The base station may also coordinate management of attributes for the air interface. For example, the base station may be a next generation node B (NG-NB) in a 5G system or may be a network element capable of completing a function of the base station in a higher-version system, which is not limited in the embodiment of the present invention.
The Core network device may include a Core network device of a Control plane and a Core network device of a User plane, where the Core network device of the Control plane is, for example, a CN-C (Core network Control-plane) and is used to complete a function of the Control plane, and the Core network device of the User plane is, for example, a CN-U (Core network User-plane) and is used to complete a function of the User plane. Of course, the core network device is not limited thereto.
In the embodiment of the present invention, the names of NG-NB, CN-C, and CN-U do not limit the devices, and in practical applications, the devices may have other names. And the structure of these devices and the specific physical implementation of these devices are not limited by the embodiments of the present invention.
3) The terms "system" and "network" in embodiments of the present invention may be used interchangeably. "plurality" means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" generally indicates that the preceding and following related objects are in an "or" relationship, unless otherwise specified.
The method provided by the embodiment of the invention can be applied to a 5G system and other systems, and any network system capable of supporting Reflective QoS function is within the protection scope of the embodiment of the invention. Taking the 5G system as an example, a network architecture applied in the embodiment of the present invention will be described first, please refer to fig. 1. The CN-C and the CN-U in the figure 1 are network elements of a core network, the CN-C is connected with the CN-U through an NG4 interface, is connected with the NG-NB through an NG2 interface, and is connected with user equipment through an NG1 interface, wherein the NG1 is a direct interface established between the user equipment and the CN-C. The NG-NB is connected to the CN-U via an NG3 interface and the NG-NB is connected to the user equipment via a Uu x interface.
In the embodiment of the present invention, the names of NG1, NG2, NG3, and NG4 do not limit the interfaces, and in practical applications, the interfaces may have other names.
In the prior art, the CN-C may instruct the NG-NB to start the Reflective QoS function through the NG2 interface, so that the user equipment may obtain the QoS parameter used by the uplink data flow of the service according to the authorized QoS parameter allocated to the downlink data flow of the service. After knowing the QoS parameters of the uplink data stream, the user equipment needs to know the QoS parameters of the RBs, so that the RBs matched with the QoS parameters of the uplink data stream can be selected to transmit the uplink data stream. However, the QoS of the current RBs is generally unknown to the ue, and therefore, even if the ue knows the QoS parameter of a certain uplink data stream according to the Reflective QoS, the ue does not know to which RB to map the uplink data stream for transmission because the QoS parameter of the RB is unknown, which makes the Reflective QoS function actually unavailable in the access network.
In the embodiment of the present invention, the user equipment may obtain the mapping relationship between the downlink data stream and the radio link bearer, so that it can know which radio link bearer the downlink data stream is transmitted through, and the user equipment may also obtain the corresponding relationship between the downlink data stream and the uplink data stream, and according to the corresponding relationship, it can know which downlink data stream the uplink data stream to which the uplink data packet to be transmitted belongs corresponds to, so that the user equipment can directly transmit the uplink data packet to be transmitted on the RB used for transmitting the corresponding downlink data stream, because the QoS parameter of the RB used for transmitting the downlink data stream is the same as the QoS parameter of the downlink data stream, that is, the QoS parameter of the RB is the same as the QoS parameter of the uplink data stream, so that the user equipment can map the uplink data stream to the correct RB for uplink transmission without obtaining the QoS parameter of the RB, therefore, the Reflective QoS function is realized in the access network, and the mode is simple and easy to implement. Through the Reflective QoS function, the network equipment does not need to specially allocate radio link bearers for the uplink data streams, namely, a mapping rule from the uplink data streams to the radio link bearers does not need to be additionally configured for the user equipment, and the configuration process of uplink transmission is optimized.
The technical scheme provided by the embodiment of the invention is described in the following with the accompanying drawings of the specification.
Referring to fig. 2, an embodiment of the present invention provides a method for determining a radio link bearer, which is applied to the network architecture shown in fig. 1 as an example and an access network device is an NG-NB as an example in the following description. The flow of the method is described below.
S201: the CN-C sends the information of starting the Reflective QoS to the NG-NB, and the CN-C can also send the identification information of the data flow to the NG-NB.
The CN-C can send the information for starting the reflex QoS and the identifier of the data flow to the NG-NB through one message, or the CN-C can send the information for starting the reflex QoS and the identifier of the data flow to the NG-NB through different messages.
In this embodiment of the present invention, the identifier of the data stream may be used to uniquely identify one data stream, where the data stream may include a downstream data stream and may also include an upstream data stream. It will be appreciated that the CN-C will inform the NG-NB which data flows have the Reflective QoS functionality enabled.
Where S201 is an optional step, the arrow representing S201 is drawn in dashed line form in fig. 2.
S202, the user equipment acquires the mapping relation between the downlink data stream and the RB and acquires the corresponding relation between the downlink data stream and the uplink data stream.
Wherein, the mapping relationship between the downlink data stream and the RB is used to indicate which RB a downlink data stream is transmitted through. Since the data stream can be identified by the unique identification information, the mapping relationship between the downlink data stream and the RB can be understood as the mapping relationship between the identification information of the downlink data stream and the RB.
In a possible embodiment, in the correspondence relationship between the downlink data stream and the uplink data stream, the uplink data stream corresponding to one downlink data stream uses the same QoS parameter as the downlink data stream. Similarly, the correspondence between the downlink data stream and the uplink data stream may also be understood as a correspondence between identification information of the downlink data stream and identification information of the uplink data stream.
In this embodiment of the present invention, the step of acquiring, by the user equipment in S202, the mapping relationship between the downlink data stream and the RB is implemented as an example in the following manner: the NG-NB sends the mapping relationship between the downlink data stream and the RB to the user equipment as shown in S2021, i.e., S2021 is one implementation of a part of the steps in S202.
For example, if the NG-NB initiates an RB establishment procedure or an RB update procedure to the user equipment, the NG-NB sends a Radio Resource Control connection reconfiguration (Radio Resource Control connection reconfiguration) message to the user equipment, and the RRC connection reconfiguration message may carry a mapping relationship between a downlink data stream and an RB.
Optionally, the NG-NB may further send information for turning on Reflective QoS to the user equipment. The NG-NB may send the mapping relationship between the downlink data stream and the RB and the information for starting the Reflective QoS to the user equipment through one message, for example, send through an RRC connection reconfiguration message, or the NG-NB may send the mapping relationship between the downlink data stream and the RB and the information for starting the Reflective QoS to the user equipment through different messages, respectively.
If a plurality of downlink data streams are aggregated on the RB between the NG-NB and the user equipment, the information for starting the Reflective QoS, which is sent by the NG-NB to the user equipment, may be used to indicate the downlink data streams for which the Reflective QoS function is started, that is, the NG-NB may indicate the downlink data streams with the data streams as the granularity, the indicated granularity is finer, and the control result is more accurate. Or, the NG-NB may also indicate with the RB as the granularity, that is, the information on starting the reflctive QoS, which is sent to the user equipment by the NG-NB, may also be used to indicate the RB with the reflctive QoS function started, and as long as the downlink data stream transmitted by the RB with the reflctive QoS function started is considered as the data stream with the reflctive QoS function started, such an indication manner is simple, and the coverage area is relatively wide.
The user equipment may obtain a corresponding relationship between the downlink data stream and the uplink data stream through a higher layer, for example, through an Application (APP) of an application layer. One way is that after receiving information for starting Reflective QoS sent by the NG-NB, the user equipment obtains a corresponding relationship between a downlink data stream and an uplink data stream through a high layer.
If the network device sends the information of the mapping relationship and the information of starting the reflexive QoS to the user equipment through the RB establishing process or the RB updating process, the user equipment may send an RB establishing completion message or an RB updating completion message to the NG-NB after receiving the information of the mapping relationship and the information of starting the reflexive QoS, which is not described in detail.
S203: and the user equipment determines to send the uplink data packet to be sent through the first RB according to the obtained mapping relation and the corresponding relation. And the user equipment determines that the uplink data stream to which the uplink data packet belongs corresponds to the first downlink data stream according to the corresponding relation, and determines that the first downlink data stream is sent through the first RB according to the mapping relation.
By way of example. For example, in the mapping relationship, the first downlink data stream is carried by the first RB, and the second downlink data stream is carried by the second RB. When the user equipment needs to send an uplink data packet, it may determine that the uplink data stream to which the uplink data packet belongs, for example, the uplink data stream is a first uplink data stream, and then the user equipment may know that the corresponding downlink data stream is the first downlink data stream through the corresponding relationship and may know that the first downlink data stream is carried by the first RB through the mapping relationship, so that the user equipment may determine that the data packet belonging to the first uplink data stream is also carried by the first RB, that is, determine that the uplink data packet to be sent is carried by the first RB, and thus the user equipment may map the uplink data packet to the RB to send.
S204: and the user equipment sends the uplink data packet to be sent to the network equipment through the first RB, and then the network equipment receives the uplink data packet through the first RB.
Where S204 is an optional step, the arrow representing S204 is drawn in dashed line form in fig. 2.
In a possible implementation manner, the CN-C may send, in addition to the information for starting the Reflective QoS to the NG-NB, the identification information of the uplink data stream with the Reflective QoS function started to the user equipment directly, that is, some uplink data streams in the uplink data stream to be sent by the user equipment have the Reflective QoS function started, and some uplink data streams have no Reflective QoS function started. Then, before determining that the uplink data packet to be sent is sent through the first RB, the user equipment may first determine whether the uplink data stream to which the uplink data packet belongs starts a reflexive QoS function, if the uplink data stream to which the uplink data packet belongs starts the reflexive QoS function, the user equipment determines to send the uplink data packet through the first RB, and if the uplink data stream to which the uplink data packet belongs does not start the reflexive QoS function, the QoS parameter of the uplink data stream is not necessarily the same as the QoS parameter of the corresponding downlink data stream, and the user equipment may determine the QoS parameter of the uplink data stream, and then select the corresponding RB to send the uplink data packet. Because the sending method for the uplink data stream without the refresh QoS function is not the content of the important discussion in the embodiment of the present invention, for such uplink data stream without the refresh QoS function, the sending method may refer to the prior art and is not described in detail.
In the embodiment of the invention, after the NG-NB controls to start the Reflective QoS function, the mapping relation between the downlink data stream and the RB can be notified to the user equipment, and the user equipment can determine the mapping relation between the uplink data stream and the RB according to the mapping relation between the downlink data stream and the RB and the corresponding relation between the downlink data stream and the uplink data stream. The more important information can be notified to the user equipment by the network equipment, the work required to be done by the user equipment is less, and the burden on the user equipment is lighter. And the mapping relation determined by the network equipment is more accurate, so that the mapping relation obtained by the user equipment is more accurate and comprehensive.
Referring to fig. 3, an embodiment of the present invention provides a method for determining a radio link bearer, and a flow of the method is described as follows. In the following description, the method is applied to the network architecture shown in fig. 1, and the access network device is an NG-NB.
S301: the CN-C sends the information of starting the Reflective QoS to the NG-NB, and the CN-C can also send the identification information of the data flow to the NG-NB.
Reference is made to S201 for an introduction of S301.
And S302, the NG-NB sends information for starting Reflective QoS to the user equipment.
If a plurality of downlink data streams are aggregated on the RB between the NG-NB and the user equipment, the information for starting the Reflective QoS, which is sent by the NG-NB to the user equipment, may be used to indicate the downlink data stream for starting the Reflective QoS function, or the information for starting the Reflective QoS, which is sent by the G-NB to the user equipment, may also be used to indicate the RB for starting the Reflective QoS function, and as long as the downlink data stream transmitted by the RB for starting the Reflective QoS function is considered as the data stream for starting the Reflective QoS function.
For example, if the NG-NB initiates an RB establishment procedure or an RB update procedure to the user equipment, the NG-NB sends an RRC connection reconfiguration message to the user equipment, where the RRC connection reconfiguration message may carry information for starting Reflective QoS.
S303: if the NG-NB is the information for starting the Reflective QoS, which is sent to the user equipment by initiating the RB establishment procedure or the RB update procedure, the user equipment may send an RB establishment completion message or an RB update completion message to the NG-NB after receiving the information for starting the Reflective QoS.
Wherein S301, S302 and S303 are optional steps, the arrows representing S301, S302 and S303 are drawn in dashed line form in fig. 3.
S304: the user equipment obtains the mapping relation between the downlink data stream and the radio link bearer and obtains the corresponding relation between the downlink data stream and the uplink data stream.
In the embodiment of the present invention, the ue may receive the downlink data packet sent by the network device, determine the RB used for carrying the downlink data packet, and then establish a mapping relationship between the downlink data stream to which the downlink data packet belongs and the RB. The user equipment may receive downlink data packets of multiple downlink data streams, and the mapping relationship established by the user equipment may include relationships between multiple sets of downlink data streams and RBs. The user equipment can continuously update the mapping relation in the process of receiving the downlink data packet, so that the coverage of the mapping relation is wider. The mapping relationship between the downlink data stream and the RB established by the user equipment may be understood as a mapping relationship between the identification information of the downlink data stream and the RB.
Of course, if the information for starting the Reflective QoS, which is sent by the network device to the user equipment, is used to indicate that the downlink data stream with the Reflective QoS function is started, after receiving the downlink data packet sent by the network device, the user equipment first determines whether the downlink data stream to which the downlink data packet belongs starts the Reflective QoS function, and if the downlink data stream starts the Reflective QoS function, the user equipment may establish a mapping relationship between the downlink data stream and the RB carrying the downlink data packet, and if the downlink data stream does not start the Reflective QoS function, the user equipment does not need to establish a mapping relationship between the downlink data stream and the RB carrying the downlink data packet. Or, if the information for starting the Reflective QoS, which is sent by the network device to the user equipment, is an RB used for indicating that the Reflective QoS function is started, after the user equipment receives a downlink data packet sent by the network device, it is first determined whether the RB for carrying the downlink data packet starts the Reflective QoS function, if the RB starts the Reflective QoS function, the user equipment may establish a mapping relationship between the downlink data stream and the RB, and if the RB does not start the Reflective QoS function, the user equipment does not need to establish a mapping relationship between the downlink data stream and the RB.
That is, in the embodiment shown in fig. 2, the mapping relationship is sent by the NG-NB to the ue, and in the embodiment shown in fig. 3, the mapping relationship is established by the ue itself, and the network device is not required to send too much information, so that the interaction process between the devices is reduced, and the transmission resource is also saved.
In addition, besides establishing the mapping relationship, the user equipment may also obtain the corresponding relationship between the downlink data stream and the uplink data stream through a higher layer, as in the embodiment shown in fig. 2. One way is that after receiving information for starting Reflective QoS sent by the NG-NB, the user equipment obtains a corresponding relationship between a downlink data stream and an uplink data stream through a high layer.
S305: and the user equipment determines to send the uplink data packet to be sent through the first RB according to the mapping relation and the corresponding relation. And the user equipment determines that the uplink data stream to which the uplink data packet belongs corresponds to the first downlink data stream according to the corresponding relation, and determines that the first downlink data stream is sent through the first RB according to the mapping relation.
For the description of this part, reference may be made to the description of S203 in the embodiment shown in fig. 2, which is not repeated.
S306: and the user equipment sends the uplink data packet to be sent to the network equipment through the first RB, and then the network equipment receives the uplink data packet through the first RB.
Where S306 is an optional step, the arrow representing S306 is drawn in dashed line form in fig. 3.
For the description of this part, reference may be made to the description of S204 in the embodiment shown in fig. 2, which is not repeated.
The embodiment of the invention adopts the Reflective QoS function, and the network equipment does not need to directly configure the mapping rule between the uplink data stream and the empty RB for the user equipment, thereby optimizing the configuration process of uplink transmission.
Several radio link bearer determination methods are introduced above, and it can be seen that the above methods relate to devices including user equipment and network equipment, and the following describes the devices.
Referring to fig. 4, based on the same inventive concept, an embodiment of the present invention provides a user equipment, which may include an obtaining module 401 and a determining module 402.
The acquiring module 401 is configured to acquire a mapping relationship between a downlink data stream and a radio link bearer, and acquire a corresponding relationship between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for bearing the downlink data flow;
a determining module 402, configured to determine, according to the mapping relationship and the corresponding relationship, that an uplink data packet to be sent is sent through a first radio link bearer; the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent by bearing through a first wireless link.
In a possible embodiment, in the correspondence, an uplink data stream corresponding to one downlink data stream adopts the same quality of service as the downlink data stream.
In a possible implementation, the user equipment may further include a receiving module 403, which is also shown in fig. 4. Since the receiving module 403 is an optional functional module, it is drawn in a dotted line form in fig. 4. Wherein, the receiving module 403 is configured to: and receiving a notification message sent by the network equipment, wherein the notification message carries indication information, the indication information is used for indicating the downlink data stream with the reflection service quality function opened, or the indication information is used for indicating the radio link bearer with the reflection service quality function opened. The reflection qos function is used to indicate that an upstream having a correspondence with a downstream has the same qos as the downstream.
In a possible embodiment, the obtaining module 401 is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
and acquiring the mapping relation carried by the notification message by analyzing the notification message.
In a possible embodiment, the obtaining module 401 is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
receiving a downlink data packet sent by the network device through the receiving module 403;
determining a radio link bearer for carrying downlink data packets;
and establishing a mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
In a possible implementation, the determining module 402 is further configured to:
and determining the uplink data stream to which the uplink data packet belongs as the uplink data stream with the reflection service quality function started before determining to send the uplink data packet to be sent through the first radio link bearer according to the mapping relation and the corresponding relation.
The user equipment may be configured to perform the method provided in the embodiment shown in fig. 2 or the embodiment shown in fig. 3, for example, the user equipment may be the user equipment as described above. Therefore, for the functions and the like implemented by each module in the user equipment, reference may be made to the description of the foregoing method, which is not repeated herein.
Referring to fig. 5, an embodiment of the present invention provides a network device, which may include a sending module 501.
The sending module 501 is configured to send a mapping relationship between a downlink data stream and a radio link bearer to a user equipment, so as to indicate the radio link bearer for carrying the downlink data stream; the mapping relationship is used for the user equipment to determine a radio link bearer carried by the uplink data packet to be sent.
In a possible implementation, the network device may further include a receiving module 502, which is also shown in fig. 5. Since the receiving module 502 is an optional functional module, it is drawn in dashed line form in fig. 5. Wherein, the receiving module 502 is configured to: and receiving an uplink data packet sent by the user equipment through the first radio link bearer. The uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent by bearing through a first wireless link.
The network device may be configured to perform the method provided in the embodiment shown in fig. 2 or the embodiment shown in fig. 3, for example, the network device may be the network device described above. Therefore, for the functions and the like realized by each module in the network device, reference may be made to the description of the foregoing method, which is not repeated herein.
Referring to fig. 6, based on the same inventive concept, an embodiment of the present invention provides a user equipment, which mainly includes a processor 601 and a memory 602. The memory 602 stores a preset program, and the processor 601 reads the program in the memory 602 and executes the following processes according to the program:
acquiring a mapping relation between a downlink data stream and a radio link bearer, and acquiring a corresponding relation between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for bearing the downlink data flow;
determining to send an uplink data packet to be sent through a first radio link bearer according to the mapping relation and the corresponding relation; the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent by bearing through a first wireless link.
In a possible embodiment, in the correspondence, an uplink data stream corresponding to one downlink data stream adopts the same quality of service as the downlink data stream.
In a possible embodiment, the user equipment further comprises a transceiver 603, which is also shown in fig. 6. The transceiver 603 is drawn in dashed line form in fig. 6, as it is an optional functional module. The transceiver 603 may receive and transmit data under the control of the processor 601. Wherein, the processor 601 is further configured to: receiving a notification message sent by the network device through the transceiver 603, where the notification message carries indication information, where the indication information is used to indicate that a downlink data stream with a reflection service quality function is started, or the indication information is used to indicate that a radio link with the reflection service quality function is started to carry a bearer; the reflection qos function is used to indicate that an upstream having a correspondence with a downstream has the same qos as the downstream.
In a possible embodiment, the processor 601 is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, including:
and acquiring the mapping relation carried by the notification message by analyzing the notification message.
In a possible embodiment, the processor 601 is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, including:
receiving a downlink data packet sent by the network device through the transceiver 603;
determining a radio link bearer for carrying downlink data packets;
and establishing a mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
In a possible embodiment, the processor 601 is further configured to:
and determining the uplink data stream to which the uplink data packet belongs as the uplink data stream with the reflection service quality function started before determining to send the uplink data packet to be sent through the first radio link bearer according to the mapping relation and the corresponding relation.
Where in fig. 6 the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 602, linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 603 may be a number of elements including a transmitter and a receiver providing a means for communicating with various other apparatus over a transmission medium.
The processor 601 is responsible for managing the bus architecture and general processing, and the memory 602 may store data used by the processor 601 in performing operations.
The user equipment may be configured to perform the method provided in the embodiment shown in fig. 2 or the embodiment shown in fig. 3, for example, the user equipment may be the user equipment as described above. In addition, the ue may be the same ue as the ue shown in fig. 4, for example, in practical applications, the entity devices corresponding to the obtaining module 401 and the determining module 402 in the embodiment shown in fig. 4 may be the processor 601, and the entity device corresponding to the receiving module 403 in the embodiment shown in fig. 4 may be the transceiver 603. Therefore, for the functions and the like implemented by each unit in the user equipment, reference may be made to the description of the foregoing method, which is not repeated herein.
Referring to fig. 7, based on the same inventive concept, an embodiment of the present invention provides a network device, which may include a processor 701, a memory 702, and a transceiver 703, where the transceiver 703 receives and transmits data under the control of the processor 701, the memory 702 stores a preset program therein, and the processor 701 reads the program in the memory 702, and executes the following processes according to the program:
sending, by the transceiver 703, a mapping relationship between a downlink data stream and a radio link bearer to the ue, so as to indicate the radio link bearer for carrying the downlink data stream; the mapping relationship is used for the user equipment to determine a radio link bearer carried by the uplink data packet to be sent.
In a possible embodiment, the processor 701 is further configured to: uplink data packets sent by the ue through the first radio link bearer are received through the transceiver 703. The uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent by bearing through a first wireless link.
Wherein in fig. 7, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by processor 701, and various circuits, represented by memory 702, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 703 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 701 is responsible for managing the bus architecture and general processing, and the memory 702 may store data used by the processor 701 in performing operations.
The network device may be configured to perform the method provided by the embodiment shown in fig. 2 or the embodiment shown in fig. 3, for example, the network device may be the network device described above. In addition, the network device and the user equipment shown in fig. 5 may be the same network device, for example, in practical applications, the entity devices corresponding to the sending module 501 and the receiving module 502 in the embodiment shown in fig. 5 may be the transceiver 703. Therefore, for the functions and the like realized by each unit in the network device, reference may be made to the description of the foregoing method, which is not repeated herein.
In the embodiment of the invention, the user equipment can acquire the mapping relation between the downlink data stream and the radio link bearer, so that it can know which radio link bearer the downlink data stream is transmitted through, and the user equipment can also obtain the corresponding relationship between the downlink data stream and the uplink data stream, according to the corresponding relation, it can know which downlink data stream the uplink data packet to be sent belongs to, so that the user equipment can directly send the uplink data packet to be sent on the radio link bearer for transmitting the corresponding downlink data stream, thus, the user equipment can complete the transmission of the uplink data packet only according to the radio link bearer used by the downlink data stream transmission without knowing the QoS parameter of the radio link bearer, therefore, the Reflective QoS function is realized in the access network, and the mode is simple and easy to implement. Through the Reflective QoS function, the network equipment does not need to specially allocate radio link bearers for the uplink data streams, namely, a mapping rule from the uplink data streams to the radio link bearers does not need to be additionally configured for the user equipment, and the configuration process of uplink transmission is optimized.
In the present invention, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the described units or division of units is only one type of division of logical functions, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the elements may be selected according to actual needs to implement the embodiments of the present invention.
The functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be an independent physical module.
The integrated unit, if implemented in the form of a software functional unit and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, all or part of the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device, such as a personal computer, a server, or a network device, or a processor (processor) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a Universal Serial Bus flash drive (usb flash drive), a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above embodiments are only used to describe the technical solutions of the present invention in detail, but the above embodiments are only used to help understanding the method of the embodiments of the present invention, and should not be construed as limiting the embodiments of the present invention. Variations or substitutions that may be readily apparent to one skilled in the art are intended to be included within the scope of the embodiments of the present invention.
Claims (14)
1. A radio link bearer determination method applied to a user equipment in a 5G system, the method comprising:
the user equipment acquires a mapping relation between a downlink data stream and a radio link bearer and acquires a corresponding relation between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream;
the user equipment determines to send an uplink data packet to be sent through a first radio link bearer according to the mapping relation and the corresponding relation; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
2. The method of claim 1, wherein in the correspondence relationship, an upstream data stream corresponding to one downstream data stream employs the same quality of service as the downstream data stream.
3. The method of claim 2, wherein the method further comprises:
the user equipment receives a notification message sent by network equipment, wherein the notification message carries indication information, the indication information is used for indicating a downlink data stream with a reflection service quality function, or the indication information is used for indicating a radio link bearer with the reflection service quality function; the reflection qos function is configured to indicate that an uplink data stream having a correspondence with a downlink data stream has the same qos as the downlink data stream.
4. The method of claim 3, wherein the obtaining, by the UE, the mapping relationship between the downlink data stream and the radio link bearer comprises:
and the user equipment acquires the mapping relation carried by the notification message by analyzing the notification message.
5. The method of claim 3, wherein the obtaining, by the UE, the mapping relationship between the downlink data stream and the radio link bearer comprises:
the user equipment receives a downlink data packet sent by the network equipment;
the user equipment determines a radio link bearer for carrying the downlink data packet;
the user equipment establishes the mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
6. The method as claimed in any one of claims 3 to 5, wherein before the ue determines to transmit the uplink data packet to be transmitted through the first radio link bearer according to the mapping relationship and the corresponding relationship, the method further comprises:
and the user equipment determines that the uplink data flow to which the uplink data packet belongs is the uplink data flow with the reflection service quality function started.
7. A method for determining radio link bearer, applied to a network device in a 5G system, includes:
the network equipment sends a mapping relation between a downlink data stream and a radio link bearer to user equipment to indicate the radio link bearer for bearing the downlink data stream; the mapping relation is used for the user equipment to determine a radio link bearer carried by an uplink data packet to be sent;
the network equipment receives the uplink data packet sent by the user equipment through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
8. User equipment, applied to a 5G system, the user equipment comprising:
an obtaining module, configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and obtain a corresponding relationship between the downlink data stream and an uplink data stream; the mapping relation is used for indicating a radio link bearer for carrying the downlink data stream;
a determining module, configured to determine, according to the mapping relationship and the corresponding relationship, that an uplink data packet to be sent is sent through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
9. The UE of claim 8, wherein in the correspondence relationship, an upstream data stream corresponding to a downstream data stream adopts the same QoS as the downstream data stream.
10. The user device of claim 9, wherein the user device further comprises a receiving module;
the receiving module is used for: receiving a notification message sent by a network device, wherein the notification message carries indication information, the indication information is used for indicating a downlink data stream with a reflection service quality function opened, or the indication information is used for indicating a radio link bearer with the reflection service quality function opened; the reflection qos function is configured to indicate that an uplink data stream having a correspondence with a downlink data stream has the same qos as the downlink data stream.
11. The ue of claim 10, wherein the obtaining module is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
and acquiring the mapping relation carried by the notification message by analyzing the notification message.
12. The ue of claim 10, wherein the obtaining module is configured to obtain a mapping relationship between a downlink data stream and a radio link bearer, and includes:
receiving a downlink data packet sent by the network equipment through the receiving module;
determining a radio link bearer for carrying the downlink data packet;
and establishing the mapping relation between the downlink data stream to which the downlink data packet belongs and the radio link bearer.
13. The user device of any of claims 10-12, wherein the determining module is further configured to:
and determining that the uplink data flow to which the uplink data packet belongs is the uplink data flow with the reflection service quality function started before determining that the uplink data packet to be sent is sent through the first radio link bearer according to the mapping relation and the corresponding relation.
14. A network device, applied to a 5G system, the network device comprising:
a sending module, configured to send a mapping relationship between a downlink data stream and a radio link bearer to a user equipment, so as to indicate the radio link bearer for carrying the downlink data stream; the mapping relation is used for the user equipment to determine a radio link bearer carried by an uplink data packet to be sent;
a receiving module, configured to receive the uplink data packet sent by the ue through a first radio link bearer; and the uplink data flow to which the uplink data packet belongs corresponds to a first downlink data flow, and the first downlink data flow is sent through the first radio link bearer.
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| CN101998668A (en) * | 2009-08-27 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for transmitting data between GTP-U (GPRS Tunneling Protocol for the User plane) entities in radio connection |
| CN102791007A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Method and device for processing upstream data |
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| US9521679B2 (en) * | 2014-03-06 | 2016-12-13 | Cisco Technology, Inc. | Systems and methods for implementing reflective EPS bearers to ensure uplink quality of service |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101998668A (en) * | 2009-08-27 | 2011-03-30 | 中兴通讯股份有限公司 | Method and device for transmitting data between GTP-U (GPRS Tunneling Protocol for the User plane) entities in radio connection |
| CN102791007A (en) * | 2011-05-17 | 2012-11-21 | 中兴通讯股份有限公司 | Method and device for processing upstream data |
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Address after: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee after: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |
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Effective date of registration: 20210602 Address after: 100085 1st floor, building 1, yard 5, Shangdi East Road, Haidian District, Beijing Patentee after: DATANG MOBILE COMMUNICATIONS EQUIPMENT Co.,Ltd. Address before: 100191 No. 40, Haidian District, Beijing, Xueyuan Road Patentee before: CHINA ACADEMY OF TELECOMMUNICATIONS TECHNOLOGY |