CN110958650A - User equipment capacity determination method and node - Google Patents
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- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0069—Transmission or use of information for re-establishing the radio link in case of dual connectivity, e.g. decoupled uplink/downlink
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
- H04W36/0027—Control or signalling for completing the hand-off for data sessions of end-to-end connection for a plurality of data sessions of end-to-end connections, e.g. multi-call or multi-bearer end-to-end data connections
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Abstract
The embodiment of the invention provides a method and a node for determining the capability of user equipment, relates to the technical field of communication, and aims to solve the problem that the conventional UE (user equipment) is switched between a source node and a target node and simultaneously keeps data connection. The method comprises the following steps: in a handover preparation process, a target node receives first information from a source node; wherein the first information comprises at least one of the following: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the dual-connection mode and is available; the third information is used for indicating the full capability of the UE; and determining the available second UE capability of the destination node according to the first information. The method and the device are applied to a scene that the UE is switched from the source node to the destination node.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and a node for determining a User Equipment (UE) capability.
Background
In the 5G system, the UE needs to meet the interruption delay of the mobility procedure of 0ms during the moving process, that is, the UE needs to maintain the data connection between the source node and the target node during the moving process from the source node to the target node, so as to perform data transceiving.
However, since the conventional handover is a single connection handover, that is, in the conventional handover process of the UE from the source node to the destination node, the UE needs to disconnect the data connection with the source node and then establish the data connection with the destination node, it cannot be guaranteed that the UE maintains the data connection at the source node and the destination node at the same time.
Disclosure of Invention
The embodiment of the invention provides a method and a node for determining UE (user equipment) capability, which are used for solving the problem that the conventional UE switching keeps data connection at a source node and a target node at the same time.
In order to solve the technical problem, the invention is realized as follows:
in a first aspect, an embodiment of the present invention provides a method for determining a UE capability, which is applied to a destination node, and the method includes:
receiving first information from a source node in a handover preparation process; wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE;
and determining the available second UE capability of the destination node according to the first information.
In a second aspect, an embodiment of the present invention provides a method for determining a UE capability, which is applied to a source node, and the method includes:
in the switching preparation process, first information is sent to a destination node;
wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
In a third aspect, an embodiment of the present invention provides a node, including:
a receiving module, configured to receive first information from a source node in a handover preparation process; wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the source node to allocate the available first UE capability to the node in the dual-connection mode; the third information is used for indicating all capabilities of the UE;
a determining module, configured to determine, according to the first information, a second UE capability available to the node.
In a fourth aspect, an embodiment of the present invention provides a node, including:
a sending module, configured to send first information to a destination node in a handover preparation process;
wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
In a fifth aspect, an embodiment of the present invention provides a node, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the UE capability determination method according to the first aspect.
In a sixth aspect, an embodiment of the present invention provides a node, including a processor, a memory, and a computer program stored on the memory and executable on the processor, where the computer program, when executed by the processor, implements the steps of the UE capability determination method according to the second aspect.
In a seventh aspect, an embodiment of the present invention provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when executed by a processor, the computer program implements the steps of the UE capability determining method described above.
In the prior art, in a conventional handover process of a UE from a source node to a destination node, the UE cannot guarantee that data connection is maintained between the source node and the destination node due to the conventional handover being a single connection handover.
To solve this problem, one solution is to perform node switching (which may be referred to as DC handover) in a Dual Connectivity (DC) manner. In the process of the DC handover, firstly, a source node is used as a main node, a target node is added as an auxiliary node, so that DC connection between UE (user equipment) and the source node and the target node is established, then, after DC configuration is completed, the target node is converted into a main node role, the former source node is released, and the DC handover is completed.
Under the existing DC architecture, the main node is used as the main node to negotiate the UE capability. However, in the conventional handover preparation (handover) procedure, only the transfer of the UE capability is performed, but the negotiation of the UE capability is not performed, so that the DC configuration cannot be completed, and the DC handover fails.
In the embodiment of the present invention, in the handover preparation process, the target node may receive the first information from the source node, where the first information includes: and the second information is used for indicating the first UE capability which is distributed to the destination node by the source node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the target node can negotiate the second UE capability which is available to the destination node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
Drawings
Fig. 1 is a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention;
fig. 2 is a flowchart illustrating a method for determining UE capability according to an embodiment of the present invention;
fig. 3 is a second flowchart illustrating a UE capability determining method according to an embodiment of the present invention;
fig. 4 is a third flowchart illustrating a UE capability determining method according to an embodiment of the present invention;
fig. 5 is a fourth flowchart illustrating a UE capability determining method according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a node according to an embodiment of the present invention;
fig. 7 is a second schematic structural diagram of a node according to the second embodiment of the present invention;
fig. 8 is a third schematic structural diagram of a node according to an embodiment of the present invention;
fig. 9 is a fourth schematic structural diagram of a node according to an embodiment of the present invention.
Detailed Description
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, not all, embodiments of the present invention. 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 invention.
Some terms involved in the embodiments of the present invention are explained below for convenience of understanding:
dual Connectivity (DC): in 4G and 5G systems, the UE may employ a dc (dual connectivity) architecture for data transmission. The existing common DC architecture is composed of two cell groups, which are: a Master Cell Group (MCG) and a Secondary Cell Group (SCG), wherein the MCG corresponds to a Master Node (MN) on the network side, and the SCG corresponds to a Secondary Node (SN) on the network side.
Under both LTE DC and EN DC, it is the MN-dominated (final decision-making) UE capability negotiation. The specific negotiation process includes: firstly, the main node informs the auxiliary node of the available UE capability of the auxiliary node according to the UE capability, the auxiliary node informs the main node of the capability which the auxiliary node wants to use, and the main node finally makes a decision whether to use or reject the request of the auxiliary node, thereby completing the whole UE capability negotiation.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship; in the formula, the character "/" indicates that the preceding and following related objects are in a relationship of "division". The term "plurality" herein means two or more, unless otherwise specified.
For the convenience of clearly describing the technical solutions of the embodiments of the present invention, in the embodiments of the present invention, the words "first", "second", and the like are used to distinguish the same items or similar items with basically the same functions or actions, and those skilled in the art can understand that the words "first", "second", and the like do not limit the quantity and execution order.
In the embodiments of the present invention, words such as "exemplary" or "for example" are used to mean serving as examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "e.g.," an embodiment of the present invention is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion. In the embodiments of the present invention, the meaning of "a plurality" means two or more unless otherwise specified.
The technical scheme provided by the application is described below with reference to the accompanying drawings.
The technical scheme provided by the invention can be applied to various communication systems, such as a 5G communication system, a future evolution system or a plurality of communication convergence systems and the like. A variety of application scenarios may be included, for example, scenarios such as Machine to Machine (M2M), D2M, macro and micro Communication, enhanced Mobile Broadband (eMBB), ultra high reliability and ultra Low Latency Communication (urrllc), and mass internet of things Communication (mtc). These scenarios include, but are not limited to: communication between the UE and the UE, communication between the network device and the network device, or communication between the network device and the UE. The embodiment of the invention can be applied to the communication between the network equipment and the UE in the 5G communication system, or the communication between the UE and the UE, or the communication between the network equipment and the network equipment.
Fig. 1 shows a schematic diagram of a possible structure of a communication system according to an embodiment of the present invention. As shown in fig. 1, the communication system includes a source node 100, a destination node 200, and a UE 300. The source node 100 and the destination node 200 may be network devices.
In the embodiment of the present invention, as can be known from fig. 1, in the DC handover process, first, DC connections between the UE300 and the source node 100 and the destination node 200 are established, and then, after the DC configuration is completed, the destination node 200 serving as a master node releases the previous source node 100, thereby completing the DC handover.
The network device may be a base station, a core network device, a transmission and Reception node (TRP), a relay station, an access Point, or the like. The network device 100 may be a Base Transceiver Station (BTS) in a Global System for Mobile communication (GSM) or Code Division Multiple Access (CDMA) network, or may be an nb (nodeb) in Wideband Code Division Multiple Access (WCDMA), or may be an eNB or enodeb (evolved nodeb) in LTE. The Network device may also be a wireless controller in a Cloud Radio Access Network (CRAN) scenario. The network device may also be a network device in a 5G communication system or a network device in a future evolution network. The words used are not to be construed as limitations of the invention.
The UE300 may be a wireless terminal device, which may be a device that provides voice and/or other traffic data connectivity to a user, a handheld device with wireless communication functionality, a computing device or other processing device connected to a wireless modem, a vehicle mounted device, a wearable device, a terminal device in a future 5G network or a terminal device in a future evolved PLMN network, etc., or may also be a wired terminal device. A Wireless terminal device may communicate with one or more core networks via a Radio Access Network (RAN), and may be a mobile terminal device, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal device, for example, a portable, pocket, hand-held, computer-included or vehicle-mounted mobile device, which exchanges languages and/or data with the RAN, and Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, Personal Digital Assistants (PDAs), and the like, and may also be a mobile device, a UE terminal device, an access terminal device, a Wireless Communication device, a terminal device unit, a terminal device station, a terminal device unit, a UE terminal device, an access terminal device, a Wireless Communication device, a terminal device unit, a terminal device station, and the like, A Mobile Station (Mobile Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Station, a Remote Terminal equipment (Remote Terminal), a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a User Agent (User Agent), a Terminal equipment device, and the like. As an example, in the embodiment of the present invention, fig. 1 illustrates that the UE is a mobile phone.
Fig. 2 shows a flowchart of a UE capability determining method according to an embodiment of the present invention, and as shown in fig. 2, the UE capability determining method may include:
step 201: in a handover preparation procedure, a source node sends first information to a destination node.
Correspondingly, the destination node of the peer receives the first information from the source node.
In an embodiment of the present invention, the first information includes at least one of the following: second information and third information.
The second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the DC mode and is available; the third information is used to indicate the full capability of the UE. The first information is used for instructing the destination node to determine the second UE capability available to the destination node according to the first information, that is, the first information is used for instructing the destination node to perform UE capability negotiation according to the first information.
Optionally, the UE capability (or the content that needs to be negotiated in the UE capability) in the embodiment of the present invention includes at least one of the following: all capabilities of the UE, each Radio Access Type (RAT) capability of the UE under the multi-system multi-connection MRDC condition, all Frequency band combining capabilities of the UE in each cell group, all carrier combining capabilities of the UE in each cell group, baseband processing capability of the UE, Radio Frequency (RF) capability of the UE, and an upper power limit used by the cell groups of the source node and the destination node in the first Frequency range FR 1.
It should be noted that the UE capability determination scheme (i.e. the UE capability negotiation process) provided in the present invention may be performed not only in the handover preparation process, but also before the handover command is executed, and may also use other newly added or existing procedure signaling to complete the UE capability negotiation process.
Step 202: and the destination node determines the available second UE capability of the destination node according to the first information.
Optionally, in this embodiment of the present invention, in a case that the first information only includes the third information, the destination node may set available UE capabilities for the destination node based on all capabilities of the UE indicated by the third information, and at this time, the second UE capabilities available to the destination node are the available UE capabilities newly set by the destination node.
Optionally, in an embodiment of the present invention, in a case that the first information at least includes the second information, the step 202 specifically includes the following steps:
step 202 a: and the destination node executes a first operation to determine the available second UE capability of the destination node according to the first information.
Wherein the first operation includes any one of: confirming the first UE capability, modifying the first UE capability, and rejecting the first UE capability.
It should be noted that, the modifying the first UE capability includes at least one of the following: adding corresponding capabilities to the first UE capabilities, deleting some or all of the first UE capabilities, and modifying some or all of the first UE capabilities.
Optionally, in the embodiment of the present invention, in the process that the destination node performs step 202a, when the destination node confirms the capability of the first UE according to the first information, as shown in fig. 3, the method further includes the following steps:
step A: the destination node sends a first acknowledgement message to the source node.
Correspondingly, the source node of the opposite terminal receives the first confirmation message from the destination node.
In an embodiment of the present invention, the second UE capability is a first UE capability.
Furthermore, the destination node may also acknowledge by default, i.e. not send any message to indicate that it has acknowledged the first UE capability.
Optionally, in the embodiment of the present invention, in the process that the destination node performs step 202a, when the destination node modifies the capability of the first UE according to the first information, as shown in fig. 4, the method further includes the following steps:
step B1: and the destination node sends the fourth information to the source node.
Step B2: the source node receives the fourth information from the destination node.
In this embodiment of the present invention, the fourth information is used to indicate a third UE capability of the destination node and a UE capability available to the source node; the third UE capability is obtained by modifying the first UE capability by the destination node.
In this embodiment of the present invention, the second UE capability is a third UE capability, that is, the UE capability available to the target node negotiated by the target node is the third UE capability.
Further optionally, as shown in fig. 4, after step B2, the method further includes:
step B3: the source node performs any of: directly executing the fourth information, sending a second confirmation message to the destination node, terminating the handover process and sending the negotiation request to the destination node again.
Wherein the negotiation request includes at least one of: first information, a conventional handover request, and a renegotiation indication.
For example, when the destination node modifies the capability of the first UE, the destination node may notify the source node of the UE capability (i.e., the third UE capability) obtained after modifying the capability of the first UE, that is, send the fourth information.
After receiving the fourth information, the source node may have the following three processing procedures:
1): the source node is forced to accept the modification of the UE capabilities.
2): and under the condition that the source node accepts the modification of the UE capability, sending a second confirmation message to the destination node to inform the destination node that the third UE capability is accepted and confirmed, or not sending the confirmation message.
3): under the condition that the source node does not accept the modification of the UE capability, the source node can directly terminate the switching process and can also reinitiate the switching negotiation (for example, resend the negotiation request to the destination node).
Optionally, in the embodiment of the present invention, in the process that the destination node performs step 202a, when the destination node rejects the first UE capability according to the first information, as shown in fig. 5, the method further includes the following steps:
and C: and the destination node initiates the conventional switching and sends fifth information to the source node.
Correspondingly, the source node of the opposite terminal receives the fifth information from the destination node.
In the embodiment of the invention, after the destination node rejects the first UE capability according to the first information, the dual connectivity switching is not initiated, and the conventional switching is directly initiated.
In this embodiment of the present invention, the fifth information is used to inform the source node that the target node has initiated a conventional handover.
Optionally, in the embodiment of the present invention, in the process that the destination node performs step 202a, when the destination node rejects the first UE capability according to the first information, as shown in fig. 6, the method further includes the following steps:
step D1: and the destination node sends the sixth information to the source node.
Step D2: the source node receives the sixth information from the destination node.
In an embodiment of the present invention, the above-mentioned sixth information is used to indicate at least one of: a fourth UE capability of the destination node and a UE capability available to the source node; the fourth UE capability is an available UE capability newly set by the destination node.
In this embodiment of the present invention, the second UE capability is a fourth UE capability, that is, the UE capability available to the target node negotiated by the target node is the fourth UE capability.
As a further alternative, as shown in fig. 6, after step D2, the method further includes the steps of:
step D3: the source node performs any of: directly executing the sixth message, sending a third confirmation message to the destination node, terminating the handover process, and sending the negotiation request to the destination node again.
Wherein the negotiation request includes at least one of: first information, a conventional handover request, and a renegotiation indication.
For example, in combination with the solutions corresponding to fig. 5 and fig. 6, after the destination node rejects the first UE capability, the source node is informed of the newly set available UE capability (i.e., the fourth UE capability), that is, the sixth information is sent.
After receiving the sixth information, the source node may have the following four processing procedures:
1): the destination node does not initiate the dual-connection handover, and initiates the conventional handover.
2): and forcing the source node to accept the newly set UE capability.
3): after the destination node informs the source node of the fourth UE capability, if the source node accepts the fourth UE capability, the destination node sends a third acknowledgement message to inform the destination node that it accepts and acknowledges the fourth UE capability, or directly accepts not to send the acknowledgement message.
4): after the destination node informs the source node of the fourth UE capability, if the source node does not accept the fourth UE capability, the source node may directly terminate the handover procedure, or may initiate the handover negotiation again (e.g., send a negotiation request to the destination node again).
In the method for determining UE capability provided in the embodiment of the present invention, in the handover preparation process, the target node receives the first information from the source node, where the first information includes: and the second information is used for indicating the first UE capability which is distributed to the destination node by the source node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the target node can negotiate the second UE capability which is available to the destination node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
Fig. 7 provides a node 400 according to an embodiment of the present invention, and as shown in fig. 7, the node 400 includes: a receiving module 401 and a determining module 402, wherein:
a receiving module 401, configured to receive first information from a source node in a handover preparation process; wherein the first information comprises at least one of the following: second information and third information; the second information is used for indicating the source node to allocate the available first UE capability to the node in the dual-connection mode; the third information is used to indicate the full capability of the UE.
A determining module 402, configured to determine, according to the first information, a second UE capability available to the node.
Optionally, in a case that the first information at least includes the second information, the determining module 402 is specifically configured to: according to the first information, executing a first operation to determine the available second UE capability of the node; wherein the first operation includes any one of: confirming the first UE capability, modifying the first UE capability, and rejecting the first UE capability.
Optionally, as shown in fig. 7, the node 400 further includes: a sending module 403, wherein:
a sending module 403, configured to send a first confirmation message to the source node when the node confirms the first UE capability according to the first information; wherein the second UE capability is the first UE capability.
Optionally, the sending module 403 is configured to send, to the source node, fourth information when the node modifies the capability of the first UE according to the first information; the fourth information is used for indicating the third UE capability of the node and the available UE capability of the source node; the third UE capability is obtained after the node modifies the first UE capability; the second UE capability is the third UE capability.
Optionally, as shown in fig. 7, the node further includes: an execution module 404, wherein:
an executing module 404, configured to initiate a normal handover in case the node rejects the first UE capability according to the first information.
A sending module 403, configured to send fifth information to the source node when the node rejects the first UE capability according to the first information; wherein, the fifth information is used to inform the source node that the target node has initiated the conventional handover.
Optionally, the sending module is configured to send sixth information to the source node when the node rejects the capability of the first UE according to the first information; wherein the sixth information is used for indicating at least one of the following: a fourth UE capability of the node and a UE capability available to the source node; the fourth UE capability is an available UE capability newly set by the node; the second UE capability is a fourth UE capability.
Optionally, the UE capability includes at least one of: all capabilities of the UE, the respective RAT capabilities of the UE in the case of MRDC, all band combining capabilities of the UE in the respective cell group, all carrier combining capabilities of the UE in the respective cell group, baseband processing capabilities of the UE, RF capabilities of the UE, and an upper power limit used by the source node and the cell group of the node in the first frequency range FR 1.
The node provided in the embodiment of the present invention may be used as a destination node to implement the process shown in any one of fig. 2 to fig. 6 in the foregoing method embodiment, and details are not described here again to avoid repetition.
In the node provided in the embodiment of the present invention, in the handover preparation process, the node may receive the first information from the source node, where the first information includes: and the second information is used for indicating the first UE capability which is allocated to the node by the source node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the node can negotiate the second UE capability which is available to the node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
Fig. 8 provides a node 500 according to an embodiment of the present invention, and as shown in fig. 8, the node 500 includes: a sending module 501, wherein:
a sending module 501, configured to send the first information to the destination node in a handover preparation process.
Wherein the first information comprises at least one of the following: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the node in the dual-connection mode and is available; the third information is used for indicating the full capability of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
Optionally, as shown in fig. 8, the node further includes: a receiving module 502, wherein:
a receiving module 502, configured to receive a first acknowledgement message from a destination node; wherein the second UE capability is the first UE capability.
Optionally, the receiving module 502 is configured to receive fourth information from the destination node; the fourth information is used for indicating the third UE capability of the destination node and the UE capability available to the node; the third UE capability is the modified UE capability of the destination node to the first UE capability; the second UE capability is a third UE capability.
Optionally, as shown in fig. 8, the node further includes: an execution module 503, wherein:
an execution module 503 configured to execute any one of: directly execute the fourth message received by the receiving module 502, send the second confirmation message to the destination node, terminate the handover procedure, and resend the negotiation request to the destination node.
Wherein the negotiation request includes at least one of: first information, a conventional handover request, and a renegotiation indication.
Optionally, the receiving module 502 is configured to receive fifth information from the destination node; the fifth information is used to inform the node that the target node has initiated a normal handover.
Optionally, the receiving module 502 is configured to receive sixth information from the destination node; wherein the sixth information is used for indicating at least one of the following: a fourth UE capability of the destination node and UE capabilities available to the node; the fourth UE capability is an available UE capability newly set by the destination node; the second UE capability is the fourth UE capability.
Optionally, the executing module 503 is configured to execute any one of the following: directly executing the sixth information received by the receiving module 502, sending a third confirmation message to the destination node, terminating the handover process, and sending a negotiation request to the destination node again; wherein the negotiation request includes at least one of: first information, a conventional handover request, and a renegotiation indication.
Optionally, the UE capability includes at least one of: all capabilities of the UE, the respective RAT capabilities of the UE in the case of MRDC, all band combining capabilities of the UE in the respective cell group, all carrier combining capabilities of the UE in the respective cell group, baseband processing capabilities of the UE, RF capabilities of the UE, and an upper power limit used by the source node and the cell group of the node in the first frequency range FR 1.
The node provided in the embodiment of the present invention may be used as a source node to implement the process shown in any one of fig. 2 to fig. 6 in the foregoing method embodiment, and details are not described here again to avoid repetition.
It should be noted that the execution module in the corresponding node in fig. 8 may be an integrated module having the functions of sending, receiving, and executing. It should be noted that, in a case where the source node needs to send the second acknowledgement message to the destination node and/or resend the negotiation request to the destination node, the executing module may be a new module with a sending function (i.e. a module different from the sending module) or the sending module.
In the node provided in the embodiment of the present invention, in the handover preparation process, the target node may receive the first information from the node, where the first information includes: and the second information is used for indicating the first UE capability which is allocated to the destination node by the node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the destination node can negotiate the second UE capability which is available to the destination node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
Fig. 9 is a schematic diagram of a hardware structure of a node for implementing an embodiment of the present invention, where the node 600 includes: a processor 601, a transceiver 602, a memory 603, a user interface 604 and a bus interface.
Wherein, the transceiver 602 is configured to receive first information from a source node in a handover preparation procedure; wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the source node to allocate the available first UE capability to the node in the dual-connection mode; the third information is used for indicating the full capability of the UE; a processor 601, configured to determine, according to the first information, a second UE capability available to the node.
In the node provided in the embodiment of the present invention, in the handover preparation process, the node may receive the first information from the source node, where the first information includes: and the second information is used for indicating the first UE capability which is allocated to the node by the source node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the node can negotiate the second UE capability which is available to the node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
And/or the presence of a gas in the gas,
a transceiver 602, configured to send first information to a destination node in a handover preparation procedure, where the first information includes at least one of: second information and third information; the second information is used for indicating the node to allocate the node to the available first UE capability of the destination node in the dual-connection mode; the third information is used for indicating the full capability of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
In the node provided in the embodiment of the present invention, in the handover preparation process, the target node may receive the first information from the node, where the first information includes: and the second information is used for indicating the first UE capability which is allocated to the destination node by the node in the DC mode and/or the third information is used for indicating all the capabilities of the UE, so that the destination node can negotiate the second UE capability which is available to the destination node according to the first information, further DC handover is completed, the interruption delay is reduced, and the communication efficiency and the efficiency are improved.
In the embodiment of the present invention, in fig. 9, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by the processor 601 and various circuits of the memory represented by the memory 603 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 602 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 804 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc. The processor 601 is responsible for managing the bus architecture and general processing, and the memory 603 may store data used by the processor 601 in performing operations.
In addition, the node 600 further includes some functional modules that are not shown, and are not described herein again.
Optionally, an embodiment of the present invention further provides a node, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program, when executed by the processor, implements the process of the UE capability determining method in the foregoing embodiment, and can achieve the same technical effect, and details are not repeated here to avoid repetition.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements multiple processes of the UE capability determining method in the foregoing embodiments, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements a plurality of processes of the foregoing random access method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not repeated here. The computer readable storage medium is, for example, ROM, RAM, magnetic disk or optical disk.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be substantially or partially embodied in the form of a software product, which is stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a device (e.g. a mobile phone, a computer, a server, an air conditioner, or a network device) to perform the method according to the embodiments of the present invention.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (33)
1. A method for determining UE capability is applied to a destination node, and the method comprises the following steps:
receiving first information from a source node in a handover preparation process; wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE;
and determining the available second UE capability of the destination node according to the first information.
2. The method of claim 1, wherein in case that the first information at least includes the second information, the determining, according to the first information, a second UE capability available to the destination node comprises:
according to the first information, executing a first operation to determine the available second UE capability of the destination node;
wherein the first operation comprises any one of: confirm the first UE capability, modify the first UE capability, and reject the first UE capability.
3. The method according to claim 2, wherein in case that the destination node confirms the first UE capability according to the first information, the method further comprises:
sending a first acknowledgement message to the source node;
wherein the second UE capability is the first UE capability.
4. The method of claim 2, wherein in case the destination node modifies the first UE capability according to the first information, the method further comprises:
sending fourth information to the source node;
wherein the fourth information is used for indicating a third UE capability of the destination node and the UE capability available to the source node; the third UE capability is the UE capability obtained after the destination node modifies the first UE capability; the second UE capability is the third UE capability.
5. The method of claim 2, wherein in case the destination node rejects the first UE capability according to the first information, the method further comprises:
initiating conventional switching and sending fifth information to the source node; wherein the fifth information is used to inform the source node that the target node has initiated a conventional handover.
6. The method of claim 2, wherein in case the destination node rejects the first UE capability according to the first information, the method further comprises:
sending sixth information to the source node;
the sixth information is for indicating at least one of: a fourth UE capability of the destination node and a UE capability available to the source node; the fourth UE capability is the available UE capability newly set by the destination node; the second UE capability is the fourth UE capability.
7. The method according to any of claims 1 to 6, wherein the UE capabilities comprise at least one of: all capabilities of the UE, capabilities of each RAT of the UE in multi-system multi-connection MRDC, capability of combining all frequency bands of the UE in each cell group, capability of combining all carriers of the UE in each cell group, capability of baseband processing of the UE, RF capability of the UE, and upper power limit used by the cell groups of the source node and the destination node in a first frequency range FR 1.
8. A method for determining UE capability is applied to a source node, and comprises the following steps:
in the switching preparation process, first information is sent to a destination node;
wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the source node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
9. The method of claim 8, further comprising:
receiving a first acknowledgement message from the destination node;
wherein the second UE capability is the first UE capability.
10. The method of claim 8, further comprising:
receiving fourth information from the destination node;
wherein the fourth information is used for indicating a third UE capability of the destination node and the UE capability available to the source node; the third UE capability is the UE capability obtained after the destination node modifies the first UE capability; the second UE capability is the third UE capability.
11. The method of claim 10, wherein after receiving the fourth information from the destination node, the method further comprises:
performing any of: directly executing the fourth information, sending a second confirmation message to the destination node, terminating the switching process and sending a negotiation request to the destination node again;
wherein the negotiation request comprises at least one of: the first information, a conventional handover request, and a renegotiation indication.
12. The method of claim 8, further comprising:
receiving fifth information from the destination node;
wherein the fifth information is used to inform the source node that the target node has initiated a conventional handover.
13. The method of claim 8, further comprising:
receiving sixth information from the destination node;
the sixth information is for indicating at least one of: a fourth UE capability of the destination node and a UE capability available to the source node; the fourth UE capability is the available UE capability newly set by the destination node; the second UE capability is the fourth UE capability.
14. The method of claim 13, wherein after receiving the sixth information from the destination node, the method further comprises:
performing any of: directly executing the sixth information, sending a third confirmation message to the destination node, terminating the switching process and sending a negotiation request to the destination node again;
wherein the negotiation request comprises at least one of: the first information, a conventional handover request, and a renegotiation indication.
15. The method according to any of claims 8 to 14, wherein the UE capabilities comprise at least one of: all capabilities of the UE, capabilities of each RAT of the UE in multi-system multi-connection MRDC, capability of combining all frequency bands of the UE in each cell group, capability of combining all carriers of the UE in each cell group, capability of baseband processing of the UE, RF capability of the UE, and upper power limit used by the cell groups of the source node and the destination node in a first frequency range FR 1.
16. A node, comprising:
a receiving module, configured to receive first information from a source node in a handover preparation process; wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the source node to allocate the available first UE capability to the node in the dual-connection mode; the third information is used for indicating all capabilities of the UE;
a determining module, configured to determine, according to the first information, a second UE capability available to the node.
17. The node according to claim 16, wherein, in case the first information at least comprises the second information, the determining module is specifically configured to:
according to the first information, executing a first operation to determine the available second UE capability of the destination node;
wherein the first operation comprises any one of: confirm the first UE capability, modify the first UE capability, and reject the first UE capability.
18. The node of claim 17, wherein the node further comprises:
a sending module, configured to send a first acknowledgement message to the source node when the node acknowledges the first UE capability according to the first information;
wherein the second UE capability is the first UE capability.
19. The node of claim 17, wherein the node further comprises:
a sending module, configured to send fourth information to the source node when the node modifies the first UE capability according to the first information;
wherein the fourth information is used to indicate a third UE capability of the node and a UE capability available to the source node; the third UE capability is the UE capability obtained after the node modifies the first UE capability; the second UE capability is the third UE capability.
20. The node of claim 17, wherein the node further comprises:
an execution module, configured to initiate a conventional handover when the node rejects the first UE capability according to the first information;
a sending module, configured to send fifth information to the source node when the node rejects the first UE capability according to the first information; wherein the fifth information is used to inform the source node that the target node has initiated a conventional handover.
21. The node of claim 17, wherein the node further comprises:
a sending module, configured to send sixth information to the source node when the node rejects the first UE capability according to the first information;
wherein the sixth information is used to indicate at least one of: a fourth UE capability of the node and a UE capability available to the source node; the fourth UE capability is an available UE capability newly set by the node; the second UE capability is the fourth UE capability.
22. The node according to any of claims 16 to 21, wherein the UE capabilities comprise at least one of: all capabilities of the UE, each RAT capability of the UE in the case of multi-system multi-connection MRDC, all frequency band combining capabilities of the UE in each cell group, all carrier combining capabilities of the UE in each cell group, baseband processing capability of the UE, RF capability of the UE, and upper power limit used by the cell group of the source node and the node in a first frequency range FR 1.
23. A node, comprising:
a sending module, configured to send first information to a destination node in a handover preparation process;
wherein the first information comprises at least one of: second information and third information; the second information is used for indicating the first UE capability which is allocated to the destination node by the node in the dual-connection mode and is available; the third information is used for indicating all capabilities of the UE; the first information is used for indicating the destination node to determine the available second UE capability of the destination node according to the first information.
24. The node of claim 23, wherein the node further comprises:
a receiving module, configured to receive a first acknowledgement message from the destination node;
wherein the second UE capability is the first UE capability.
25. The node of claim 23, wherein the node further comprises:
a receiving module, configured to receive fourth information from the destination node;
wherein the fourth information is used for indicating a third UE capability of the destination node and the UE capability available to the node; the third UE capability is the UE capability obtained after the destination node modifies the first UE capability; the second UE capability is the third UE capability.
26. The node according to claim 25, characterized in that it further comprises:
an execution module to execute any one of: directly executing the fourth information received by the receiving module, sending a second confirmation message to the destination node, terminating the switching process and sending a negotiation request to the destination node again;
wherein the negotiation request comprises at least one of: the first information, a conventional handover request and a renegotiation indication.
27. The node of claim 23, wherein the node further comprises:
a receiving module, configured to receive fifth information from the destination node;
wherein the fifth information is used to inform the node that the target node has initiated a conventional handover.
28. The node of claim 23, wherein the node further comprises:
a receiving module, configured to receive sixth information from the destination node;
wherein the sixth information is used to indicate at least one of: a fourth UE capability of the destination node and a UE capability available to the node; the fourth UE capability is the available UE capability newly set by the destination node; the second UE capability is the fourth UE capability.
29. The node according to claim 28, characterized in that it further comprises:
an execution module to execute any one of: directly executing the sixth information received by the receiving module, sending a third confirmation message to the destination node, terminating the switching process, and sending a negotiation request to the destination node again;
wherein the negotiation request comprises at least one of: the first information, a conventional handover request, and a renegotiation indication.
30. The node according to any of claims 23 to 29, wherein said UE capabilities comprise at least one of: all capabilities of the UE, capabilities of each RAT of the UE in multi-system multi-connection MRDC, all frequency bands and carrier combination capabilities of the UE in each cell group, baseband processing capability of the UE, RF capability of the UE, and upper power limits used by the cell groups of the node and the destination node in a first frequency range FR 1.
31. A node, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the user equipment, UE, capability determination method according to any of claims 1 to 7.
32. A node, comprising a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the user equipment, UE, capability determination method according to any of claims 8 to 15.
33. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the steps of the user equipment, UE, capability determination method according to any one of claims 1 to 15.
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| PCT/CN2019/106798 WO2020063453A1 (en) | 2018-09-26 | 2019-09-19 | Method for determining user equipment capability and node |
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| WO2020063453A1 (en) | 2020-04-02 |
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