WO2014124558A1 - 一种用户设备组切换方法、设备和系统 - Google Patents

一种用户设备组切换方法、设备和系统 Download PDF

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Publication number
WO2014124558A1
WO2014124558A1 PCT/CN2013/071641 CN2013071641W WO2014124558A1 WO 2014124558 A1 WO2014124558 A1 WO 2014124558A1 CN 2013071641 W CN2013071641 W CN 2013071641W WO 2014124558 A1 WO2014124558 A1 WO 2014124558A1
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WO
WIPO (PCT)
Prior art keywords
handover
proxy
enb
group
message
Prior art date
Application number
PCT/CN2013/071641
Other languages
English (en)
French (fr)
Inventor
鲁振伟
朱松
杨飞
李龠
郭小龙
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP13875232.4A priority Critical patent/EP2958372B1/en
Priority to PCT/CN2013/071641 priority patent/WO2014124558A1/zh
Priority to CN201380001836.7A priority patent/CN104170468B/zh
Publication of WO2014124558A1 publication Critical patent/WO2014124558A1/zh
Priority to US14/828,985 priority patent/US9271194B2/en

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/0005Control or signalling for completing the hand-off
    • H04W36/0009Control or signalling for completing the hand-off for a plurality of users or terminals, e.g. group communication or moving wireless networks
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/08Reselecting an access point
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W74/00Wireless channel access
    • H04W74/08Non-scheduled access, e.g. ALOHA
    • H04W74/0833Random access procedures, e.g. with 4-step access
    • H04W74/0838Random access procedures, e.g. with 4-step access using contention-free random access [CFRA]

Definitions

  • the present invention relates to the field of wireless network communications, and in particular, to a user equipment group switching method, device and system. Background technique
  • MUCC Multiple User Equipment Cooperative Communication
  • eNB evolved NodeB
  • UE User Equipment
  • a nearby proxy UE also referred to as an S-UE, ie, supporting user equipment
  • the single-link MUCC refers to the proxy UE proxying one or more UEs to communicate with the eNB.
  • the proxy UE and each UE form a UE group, wherein the connection between the proxy UE and the eNB is in a synchronous state, and the connection between each UE and the eNB is out of synchronization. State, to send uplink data only through the proxy UE.
  • the UEs of the proxy UE and its proxy may need to switch the serving eNB for the UE group due to the change of location.
  • each UE in the UE group that permits handover (including the proxy UE and each UE) needs to switch from the S-eNB (Serving eNB, the original eNB) to the T- The eNB (Target eNB), each UE that grants handover, initiates a random access procedure and performs handover.
  • S-eNB Serving eNB
  • T- The eNB Target eNB
  • the proxy UE and each UE to be handed over have to initiate a random access procedure and perform handover respectively.
  • a large amount of Preamble and signaling need to be consumed; and for each UE in the single-link MUCC state, as long as it does not deviate from the synthetic relationship with the proxy UE, it is returned to the lost state after switching to the synchronization state, so there is no need to Switch to additionally perform the synchronization process.
  • the embodiment of the present invention provides a user equipment group switching party. Law, equipment and systems.
  • the technical solution is as follows:
  • the embodiment of the present invention provides a user equipment group handover method, where the method includes: determining, according to the measurement report of the proxy UE and the measurement report of the UE in the UE group, sent by the proxy user equipment UE, Whether the proxy UE and each UE in the UE group need to switch; the UE group includes the proxy UE and each UE;
  • the handover request message includes at least the proxy UE and the at least one handover requiring handover Context information of the UE and a composite relationship between the proxy UE and the handover UE;
  • the handover configuration message includes at least a physical random access channel (PRACH) resource and a cell radio network allocated by the T-eNB for the proxy UE.
  • PRACH physical random access channel
  • the method further includes:
  • the handover request message includes at least the proxy UE and the Context information of at least one handover UE that needs to be handed over and a composite relationship between the proxy UE and the handover UE;
  • the handover configuration message includes at least a PRACH resource and a C- allocated by the T-eNB for the proxy UE.
  • the embodiment of the present invention provides a user equipment group handover method, where the method includes: transmitting, to an original base station S-eNB, a measurement report of its own and a measurement report of a UE in a user equipment UE group; The proxy UE and each of the UEs;
  • a handover configuration message receives, by the S-eNB, a handover configuration message, where the handover configuration message includes at least a physical random access channel PRACH resource and a cell radio network temporary identifier C-RNTI allocated by the T-eNB for the proxy UE, and Describe the C-RNTI allocated by each handover UE that needs to be handed over; Transmitting a handover configuration message to each of the handover UEs; the handover configuration message includes at least a C-RNTI allocated by the T-eNB for the handover UE;
  • the method further includes:
  • the method further includes:
  • the re-establishment notification message is sent to each handover UE in the UE group, and each handover UE in the UE group is notified to establish a synchronization connection.
  • an embodiment of the present invention provides a user equipment group handover method, where the method includes: sending a measurement report to a proxy user equipment UE, so that the measurement report and the measurement report of the proxy UE are forwarded by the proxy UE To the original base station S-eNB;
  • the handover configuration message at least includes a cell radio network temporary identifier C-RNTI allocated by the destination base station T-eNB;
  • the embodiment of the present invention provides a user equipment group handover method, where the method includes: receiving a handover request message sent by an original base station S-eNB; the handover request message includes at least a proxy user equipment UE and a UE group At least one context information of the handover UE that needs to be handed over and a composite relationship between the proxy UE and the handover UE;
  • the resource includes at least a physical random access channel PRACH resource and a cell radio network temporary identifier C-RNTI allocated to the proxy UE And a C-RNTI allocated for each of the handover UEs that need to be handed over; Transmitting, to the S-eNB, a handover configuration message, where the handover configuration message includes at least a PRACH resource and a C-RNTI allocated to the proxy UE, and a C-RNTI allocated for each handover UE that needs to be handed over;
  • the handover UE receives, by the handover UE, the handover UE that is forwarded by the proxy UE according to the C-RNTI completes the handover completion message, and knows that the handover UE completes the handover.
  • the method further includes:
  • an embodiment of the present invention provides a user equipment group switching device, where the device includes: a determining switching module, configured to send, according to the proxy user equipment, a measurement report of the proxy UE and a UE group a measurement report of the UE, determining whether the UE in the proxy UE and the UE group needs to be handed over; the UE group includes the proxy UE and each UE;
  • a handover requesting module configured to send a handover request message to the target base station T-eNB when the proxy UE and the at least one UE in the UE group need to be handed over;
  • the handover request message includes at least the proxy UE and the At least one context information of the handover UE that needs to be handed over and a composite relationship between the proxy UE and the handover UE;
  • a handover confirmation module configured to receive a handover configuration message sent by the T-eNB, and send the message to the proxy UE.
  • the handover configuration message includes at least a physical random access channel allocated by the T-eNB to the proxy UE. a PRACH resource and a cell radio network temporary identifier C-RNTI and a C-RNTI allocated for each of the handover UEs that need to be handed over;
  • a first release module configured to receive a release context message sent by the T-eNB, and release a context resource of the proxy UE and the handover UE.
  • the device further includes:
  • a first forwarding module configured to send, by the mobility management entity MME, the handover request message to the T-eNB when the proxy UE and the at least one UE in the UE group need to perform handover;
  • the request message includes at least the context information of the proxy UE and the at least one handover UE that needs to be handed over, and a composite relationship between the proxy UE and the handover UE;
  • a second forwarding module configured to receive, by using the MME, the handover configuration message sent by the T-eNB, and send the message to the proxy UE, where the handover configuration message includes at least the T-eNB as the proxy UE An allocated PRACH resource and a C-RNTI and a C-RNTI allocated for each of the handover UEs that need to be handed over;
  • a third forwarding module configured to receive, by using the MME, a release context message sent by the T-eNB, and release a context resource of the proxy UE and the handover UE.
  • the embodiment of the present invention provides a user equipment group switching device, where the device includes: a first sending module, configured to send a measurement report of its own to the original base station S-eNB and each UE in the user equipment UE group a measurement report; the UE group includes the proxy UE and the each UE; and a receiving confirmation module, configured to receive, by the S-eNB, a handover configuration message; where the handover configuration message includes at least the T-eNB a physical random access channel PRACH resource and a cell radio network temporary identifier C-RNTI allocated to the proxy UE, and a C-RNTI allocated for each of the handover UEs that need to be handed over;
  • a sending identifier module configured to separately send a handover configuration message to each of the handover UEs;
  • the handover configuration message includes at least a C-RNTI allocated by the T-eNB to the handover UE;
  • a first access module configured to initiate a random access to the T-eNB according to the PRACH resource, and establish an uplink synchronization connection with the T-eNB.
  • the device further includes
  • a first handover completion module configured to send a first handover complete message to the T-eNB after establishing an uplink synchronization connection with the T-eNB; and send a second handover completion to each handover UE in the UE group respectively Message
  • a second handover completion module configured to receive a third handover complete message sent by each handover UE in the UE group, and forward the message to the T-eNB.
  • the device further includes:
  • a second access module configured to initiate a reestablishing a synchronization connection request after initiating a random access to the T-eNB according to the PRACH resource, after the random access is initiated to the T-eNB according to the PRACH resource; If the re-establishment of the synchronization connection fails, the re-establishment notification message is sent to each handover UE in the UE group, and each handover UE in the UE group is notified to establish a synchronization connection.
  • the embodiment of the present invention provides a user equipment group switching device, where the device includes: a second sending module, configured to send a measurement report to the proxy user equipment UE, so that the proxy UE forwards the measurement report and the measurement report of the proxy UE to the original base station S-eNB;
  • a receiving identity module configured to receive a handover configuration message sent by the proxy UE, where the handover configuration message includes at least a cell radio network temporary identifier C-RNTI allocated by the target base station T-eNB;
  • a third handover completion module configured to complete a handover according to the C-RNTI, and send a third handover complete message to the proxy UE, so that the proxy completion message is forwarded by the proxy UE to the target base station T-eNB .
  • the eighth aspect of the present invention provides a user equipment group switching device, where the device includes: a receiving switching module, configured to receive a handover request message sent by an original base station S-eNB; and the handover request message includes at least an agent Context information of the user equipment UE and at least one handover UE that needs to be handed over, and a composite relationship between the proxy UE and the handover UE;
  • an allocation identifier module configured to allocate resources to each of the proxy UE and the handover UE that needs to be handed over in the UE group;
  • the resource includes at least a physical random access channel PRACH resource and a cell radio allocated to the proxy UE a network temporary identifier C-RNTI and a C-RNTI allocated for each of the handover UEs that need to be handed over;
  • a handover configuration message is sent to the S-eNB; and the handover configuration message includes at least a PRACH allocated to the proxy UE a resource and a C-RNTI and a C-RNTI allocated for each of the handover UEs that need to be handed over;
  • a third access module configured to receive an uplink synchronization connection with the proxy UE according to the access request sent by the proxy UE according to the PRACH resource;
  • a fourth handover completion module configured to receive, by the proxy UE, a handover complete message that the handover UE completes handover according to the C-RNTI, and learn that the handover UE completes handover.
  • the device further includes:
  • a path conversion requesting module configured to: after receiving the handover complete message that the handover UE performs handover according to the C-RNTI, send a path conversion request to the mobility management entity MME;
  • a path conversion confirmation module configured to receive a path conversion confirmation message that is sent by the MME after converting the downlink path of the proxy UE and the handover UE according to the path conversion request;
  • a second release module configured to send a release context message to the MME, so that the MME sends a release context command to the S-eNB, so that the S-eNB releases the context resource of the proxy UE and the switching UE.
  • the embodiment of the present invention provides a user equipment group switching system, where the system includes: The original base station S-eNB, the proxy user equipment UE, the handover UE in the proxy group, and the destination base station T-eNB; the S-eNB is configured to complete the functions described in the first aspect;
  • the proxy UE is configured to perform the functions described in the second aspect
  • the switching UE in the proxy group is used to complete the functions described in the third aspect
  • the destination base station T-eNB is configured to perform the functions described in the fourth aspect.
  • the handover request message is sent to the T-eNB; the handover configuration message sent by the T-eNB is received and sent to the proxy UE; and the handover configuration message includes at least the T-eNB.
  • the proxy UE and each of the handover UEs need to perform handover with the T-eNB respectively, which causes a problem of consuming a large amount of Preamble and signaling, and redundant synchronization of the single-link MUCC state, thereby saving Preamble resources and Signaling improves switching efficiency.
  • FIG. 2 is a flowchart of a user equipment group switching method according to Embodiment 2 of the present invention.
  • FIG. 3 is a flowchart of a user equipment group switching method according to Embodiment 3 of the present invention.
  • FIG. 4 is a flowchart of a user equipment group switching method according to Embodiment 4 of the present invention.
  • FIG. 5 is a flowchart of a user equipment group switching method according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic diagram of operation of a user equipment group switching method according to Embodiment 5 of the present invention.
  • FIG. 7 is a flowchart of a user equipment group switching method according to Embodiment 6 of the present invention.
  • FIG. 9 is a first schematic structural diagram of a user equipment group switching apparatus according to Embodiment 7 of the present invention
  • FIG. 10 is a second structural schematic diagram of a user equipment group switching apparatus according to Embodiment 7 of the present invention
  • a schematic diagram of a first structure of a user equipment group switching device
  • FIG. 12 is a second schematic structural diagram of a user equipment group switching apparatus according to Embodiment 8 of the present invention
  • FIG. 13 is a third structural diagram of a user equipment group switching apparatus according to Embodiment 8 of the present invention
  • FIG. 15 is a first schematic structural diagram of a user equipment group switching apparatus according to Embodiment 10 of the present invention
  • FIG. 16 is a second structural diagram of a user equipment group switching apparatus according to Embodiment 10 of the present invention
  • FIG. 17 is a schematic structural diagram of a user equipment group switching system according to Embodiment 11 of the present invention.
  • an embodiment of the present invention provides a user equipment group handover method, where the method includes: 101. Determine a proxy UE according to a measurement report of a proxy UE sent by a proxy user equipment UE and a measurement report of a UE in a UE group. Whether each UE in the UE group needs to be handed over; the UE group includes a proxy UE and each of the UEs;
  • the proxy UE and the UE in the UE group need to perform handover, send a handover request message to the target base station T-eNB.
  • the handover request message includes at least the context information of the proxy UE and the at least one handover UE that needs to be handed over, and the proxy UE and Switching the synthetic relationship between UEs;
  • the handover configuration message includes at least a PRACH (Physical Random Access Channel) resource and a C-RNTI (CellRadioNetworkTemporaryIdentifier) allocated by the T-eNB for the proxy UE. a cell radio network temporary identifier) and a C-RNTI allocated for each handover UE that needs to be handed over;
  • PRACH Physical Random Access Channel
  • C-RNTI CellRadioNetworkTemporaryIdentifier
  • the method further includes:
  • the mobility management entity MME And transmitting, by the mobility management entity MME, a handover request message to the T-eNB when the proxy UE and the at least one UE in the UE group need to be handed over;
  • the handover request message includes at least the context information of the proxy UE and the at least one handover UE that needs to be handed over, and the proxy a composite relationship between the UE and the handover UE;
  • the handover configuration message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE, and for each One The C-RNTI allocated by the handover UE that needs to be handed over;
  • the release context message sent by the T-eNB is received by the MME, and the context resources of the proxy UE and the handover UE are released.
  • the method provided by the embodiment of the present invention when determining that at least one UE in the proxy UE and the UE group needs to be handed over, sends a handover request message to the T-eNB; receives a handover configuration message sent by the T-eNB and sends the handover configuration message to the proxy UE;
  • the message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE and a C-RNTI allocated for each handover UE that needs to be handed over; receiving a release context message sent by the T-eNB, and releasing the proxy UE and the handover UE
  • the context resource solves the problem that the proxy UE and each handover UE respectively need to switch with the T-eNB when the user equipment group handover is performed, which causes a large amount of Preamble and signaling to be consumed and the single link MUCC state to perform redundancy synchronization.
  • the problem is that the Preamble resources and signaling are saved, and the switching efficiency is improved
  • an embodiment of the present invention provides a user equipment group switching method, where the method includes:
  • the UE group includes the proxy UE and each of the UEs;
  • the receiving S-eNB sends a handover configuration message.
  • the handover configuration message includes at least a physical random access channel PRACH resource and a cell radio network temporary identifier C-RNTI allocated by the T-eNB for the proxy UE, and a handover UE that needs to be switched. Assigned C-RNTI;
  • the method further includes:
  • the method further includes: if the random access failure is initiated to the T-eNB according to the PRACH resource, initiating the reestablishing the synchronous connection request;
  • the method provided by the embodiment of the present invention sends a measurement report of the UE and a measurement report of the UE in the UE group to the S-eNB; the S-eNB sends a handover configuration message; sends a handover configuration message to each handover UE separately; according to the PRACH resource Initiating random access to the T-eNB and establishing an uplink synchronization connection with the T-eNB, which solves the problem that the proxy UE and each handover UE respectively switch to the T-eNB when the user equipment group handover is performed, resulting in consumption of a large amount of Preamble and
  • the problem of signaling and the problem of redundant synchronization of the single-link MUCC state saves Preamble resources and signaling and improves handover efficiency.
  • an embodiment of the present invention provides a user equipment group switching method, where the method includes:
  • the handover configuration message includes at least a cell radio network temporary identifier C-RNTI allocated by the destination base station T-eNB.
  • an embodiment of the present invention provides a user equipment group switching method, where the method includes:
  • the handover request message includes at least one context information of at least one handover UE that needs to be handed over in the proxy UE and the UE group, and a composite relationship between the proxy UE and the handover UE.
  • the handover UE forwards the handover UE completes the handover completion message according to the C-RNTI, and learns that the handover UE completes the handover.
  • the method further includes:
  • a release context message is sent to the MME, so that the MME sends a release context command to the S-eNB to cause the S-eNB to release the context resources of the proxy UE and the handover UE.
  • the method provided by the embodiment of the present invention when receiving the handover request message sent by the S-eNB, allocates resources for the handover UE that needs to be handed over in the proxy UE and the UE group; sends a handover configuration message to the S-eNB;
  • the access request sent by the PRACH resource establishes an uplink synchronization connection with the proxy UE;
  • the handover UE forwarded by the receiving proxy UE completes the handover completion message according to the C-RNTI, and learns that the handover UE completes the handover, and resolves the proxy UE when the current user equipment group handover
  • each handover UE has to perform handover with the T-eNB separately, which causes a problem of consuming a large amount of Preamble and signaling and a single-link MUCC state for redundancy synchronization, saving Preamble resources and signaling, and improving handover effectiveness.
  • an embodiment of the present invention provides a user equipment group handover method, where the method includes: 501.
  • a proxy UE receives a measurement report sent by a UE in a UE group, and receives a measurement report of the UE and a measurement report of the UE. Send together to the S-eNB;
  • a proxy UE which is also called a S-UE (Supporting UE), and the UE that is forwarded is called a B-UE (Beneficial UE).
  • S-UE Serving UE
  • B-UE Battery UE
  • One proxy UE can support multiple UEs; the proxy UE and each UE it supports constitute a UE group. Referring to FIG. 6, step 0, the UE sends a measurement report to the proxy UE; step 1 proxy UE will each The measurement reports of the UEs are sent to the S-eNB together with their own measurement reports.
  • the S-eNB determines, according to the measurement report sent by the proxy UE, whether the UE in the proxy UE and the UE group needs to be switched.
  • the measurement report includes a measurement report of the proxy UE and a measurement report of each handover UE in the UE group.
  • the S-eNB After receiving the measurement report sent by the proxy UE, the S-eNB determines the proxy UE and the handover UE in the UE group according to a predetermined rule. Whether switching is required, for example, judging the communication condition of the UE according to the channel communication quality parameter to determine whether switching is required. Referring to Figure 6, step 2 S-eNB performs handover judgment.
  • the S-eNB determines that the proxy UE and the at least one UE in the UE group need to perform handover, send a handover request message to the T-eNB.
  • the S-eNB determines that the UE in the proxy UE and the UE in the UE group do not need to perform handover, the S-eNB does not send a handover request message to the T-eNB.
  • the S-eNB sends a handover request message to the T-eNB.
  • the S-eNB receives the handover configuration message sent by the T-eNB and forwards the message to the proxy UE.
  • the handover configuration message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE, and a C-RNTI allocated for each handover UE that needs to be handed over; wherein the PRACH resource is included as a Preamble.
  • the T-eNB performs admission control, allocates PRACH resources for the proxy UE, and allocates C-RNTIs for the proxy UE and each handover UE that grants access;
  • Step 5 T-eNB to S-eNB Sending a handover configuration message;
  • Step 6 After receiving the handover configuration message, the S-eNB sends a handover command (RRC Connection Reconfiguration message) to the proxy UE, where the PRACH resource and the C-RNTI allocated to the proxy UE are included and The C-RNTI allocated by the handover UE that needs to be handed over.
  • the proxy UE sends a handover configuration message to each handover UE, where the handover configuration message includes a C-RNTI allocated by the T-eNB to the handover UE.
  • the proxy UE after receiving the handover configuration message, extracts its own PRACH resource and the C-RNTI, and then sends a handover configuration message to each handover UE.
  • the handover configuration message includes at least the C-RNTI allocated by the T-eNB for the handover UE.
  • the proxy UE sends a handover command (RRC Connection Reconfiguration message) to each handover UE that is permitted to handover, and the RRC connection reconfiguration message includes the C allocated by the T-eNB for the handover UE in the UE group. -RNTI and other related information.
  • each handover UE when each handover UE is determined by the S-eNB to perform handover, if the handover configuration message including the C-RNTI allocated by the T-eNB is not received, the handover UE sends a random access request to the S-eNB, and establishes The synchronous connection communicates directly with the S-eNB.
  • the proxy UE initiates a random access to the T-eNB according to the PRACH resource, establishes an uplink synchronization connection with the T-eNB, sends a first handover complete message to the T-eNB, and sends a second message to each handover UE in the UE group.
  • Switch completion message ;
  • the proxy UE initiates non-contention-based random access to the T-eNB according to the PRACH resource, and obtains the timing advance of the T-eNB and the right to send uplink data;
  • the proxy UE sends a first handover complete message to the T-eNB, that is, an RRC reconfiguration complete message, indicating that the proxy UE has completed the handover;
  • the proxy UE sends a second handover complete message to the UE that is permitted to handover, to notify the proxy that the UE has The switch is complete.
  • the proxy UE initiates random access to the T-eNB according to the PRACH resource
  • the re-establishment of the synchronous connection request is initiated; if the re-establishment of the synchronous connection fails, the UE is sent to the UE.
  • Each handover UE in the group sends a reestablishment notification message, and notifies each handover UE in the UE group to establish a synchronization connection.
  • the proxy UE receives a third handover complete message sent by each handover UE in the UE group and forwards the message to the T-eNB.
  • the handover UE that is allowed to switch in step 11 sends a third handover complete message, that is, a reconfiguration complete message, to the proxy UE, indicating that each handover UE has completed handover; in step 12, the proxy UE moves to the T- The eNB forwards a third handover complete message, that is, a reconfiguration complete message, of each handover UE that is permitted to handover.
  • a third handover complete message that is, a reconfiguration complete message
  • the T-eNB sends a path switch request to the MME, and receives a path switch confirmation message that is sent by the MME after converting the downlink path of the proxy UE and the handover UE according to the path conversion request.
  • step 13 the T-eNB sends a path switch request message to the MME, requesting to convert the downlink path of each UE that is successfully handed over; in step 14, the MME and the S-GW complete the downlink path conversion of each UE.
  • the MME sends a path switch request acknowledgement message to the T-eNB;
  • the S-eNB receives the release context message sent by the T-eNB, and releases the context resource of the handover UE in the proxy UE and the UE group.
  • step 16 the T-eNB sends a release UE context message to the S-eNB; in step 17, the S-eNB releases the context resources of all UEs that successfully handover.
  • the handover request message is sent to the T-eNB; and the handover configuration message including the PRACH resource and the C-RNTI allocated by the T-eNB for the proxy UE and the C-RNTI allocated for each handover UE that needs to handover is sent to the proxy
  • the UE and the handover UE complete the handover the UE releases the context resources of the proxy UE and each handover UE, and solves the problem that the proxy UE and each handover UE respectively need to be switched with the T-eNB when the user equipment group handover is performed.
  • the problem of consuming a large amount of Preamble and signaling and the single-link MUCC state for redundant synchronization saves Preamble resources and signaling and improves handover efficiency.
  • an embodiment of the present invention provides a user equipment group handover method, where the method includes: 701.
  • a proxy UE receives a measurement report sent by a UE in a UE group, and receives a measurement report of the UE and a measurement report of the UE. Send together to the S-eNB;
  • the S-eNB determines, according to the measurement report sent by the proxy UE, whether the UE in the proxy UE and the UE group needs to be switched.
  • step 701-step 702 For the specific process of step 701-step 702, refer to steps 501-502 in the second embodiment, and details are not described herein again.
  • the S-eNB determines that at least one handover UE in the proxy UE and the UE group needs to perform handover, send, by using the MME, a handover request message to the T-eNB.
  • the S-eNB determines that neither the proxy UE nor the UE in the UE group needs to handover, the handover request message is not sent to the T-eNB.
  • the S-eNB sends a handover request message to the MME.
  • Step 4 The MME sends the handover request message to the T-eNB.
  • the S-eNB receives the handover configuration message sent by the T-eNB through the MME, and forwards the message to the proxy.
  • the T-eNB performs admission control, and allocates PRACH resources to the proxy UE. And allocating a C-RNTI to the proxy UE and each handover UE that grants access;
  • Step 6 The T-eNB sends a handover configuration message to the MME;
  • Step 7 The MME sends a handover configuration message to the S-eNB;
  • Step 8 S-eNB After receiving the handover configuration message, the handover command (RRC Connection Reconfiguration message) is sent to the proxy UE, where the PRACH resource and the C-RNTI allocated to the proxy UE and the C-RNTI allocated for each handover UE that needs to be handed over are included.
  • the proxy UE initiates a random access to the T-eNB according to the PRACH resource, establishes an uplink synchronization connection with the T-eNB, sends a first handover complete message to the T-eNB, and sends a second message to each handover UE in the UE group.
  • Switch completion message ;
  • the T-eNB sends a path switch request to the MME, and receives a path switch confirmation message that is sent by the MME after converting the downlink path of the proxy UE and the handover UE according to the path conversion request.
  • step 705-step 708 For the specific process of step 705-step 708, refer to steps 505-508 in the second embodiment, and details are not described herein again.
  • the S-eNB receives the release context message sent by the T-eNB by using the MME, and releases the context resource of the handover UE in the proxy UE and the UE group.
  • step 18 the T-eNB sends a release UE context message to the MME.
  • step 19 after receiving the release UE context message sent by the MME, the S-eNB releases the context resources of all successfully switched UEs.
  • the method provided by the embodiment of the present invention when determining that at least one UE in the proxy UE and the UE group needs to be handed over, sends a handover request message to the T-eNB through the MME; and includes the PRACH resource and the C allocated by the T-eNB to the proxy UE. - the RNTI and the handover configuration message of the C-RNTI allocated for each handover UE that needs to be handed over are sent to the proxy UE.
  • the MME receives the release request of the T-eNB, and releases the proxy UE and each Switching the context resource of the UE, and solving the problem that the proxy UE and each handover UE respectively need to switch with the T-eNB when the user equipment group handover is performed, which causes a large amount of Preamble and signaling to be consumed and the single link MUCC state is redundant.
  • the problem of remaining synchronization saves Preamble resources and signaling and improves switching efficiency.
  • an embodiment of the present invention provides a user equipment group switching device, where the device includes:
  • the determining switching module 901 is configured to determine, according to the measurement report of the proxy UE sent by the proxy user equipment UE and the measurement report of the UE in the UE group, whether the UE in the proxy UE and the UE group needs to be switched;
  • the UE group includes the proxy UE And each of the UEs;
  • the handover requesting module 902 is configured to: when the proxy UE and the UE in the UE group need to perform handover, send a handover request message to the target base station T-eNB; the handover request message includes at least a context of the proxy UE and at least one handover UE that needs to be handed over Information and a synthetic relationship between the proxy UE and the handover UE;
  • the handover confirmation module 903 is configured to receive a handover configuration message sent by the T-eNB and send the message to the proxy UE.
  • the handover configuration message includes at least a physical random access channel PRACH resource and a cell radio network temporary identifier C allocated by the T-eNB for the proxy UE. - RNTI and C-RNTI allocated for each handover UE that needs to be handed over;
  • the first release module 904 is configured to receive a release context message sent by the T-eNB, and release the context resource of the proxy UE and the handover UE.
  • the device further includes:
  • the first forwarding module 905 is configured to send, by the mobility management entity MME, a handover request message to the T-eNB when the proxy UE and the at least one UE in the UE group need to be handed over; the handover request message includes at least one proxy UE and at least one needs to be switched. Switching context information of the UE and a synthetic relationship between the proxy UE and the handover UE;
  • the second forwarding module 906 is configured to receive, by using the MME, a handover configuration message sent by the T-eNB and send the message to the proxy UE.
  • the handover configuration message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE, and for each requirement. Switching handover C-RNTI allocated by the UE;
  • the third forwarding module 907 is configured to receive, by using the MME, a release context message sent by the T-eNB, and release the context resource of the proxy UE and the handover UE.
  • the device provided by the embodiment of the present invention sends a handover request message to the T-eNB when the proxy UE and the at least one UE in the UE group need to be handed over; receives the handover configuration message sent by the T-eNB and sends the handover configuration message to the proxy UE;
  • the message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE and a C-RNTI allocated for each handover UE that needs to be handed over; receiving a release context message sent by the T-eNB, and releasing the proxy UE and the handover UE
  • the context resource solves the problem that the proxy UE and each handover UE respectively need to switch with the T-eNB when the user equipment group handover is performed, which causes a large amount of Preamble and signaling to be consumed and the single link MUCC state to perform redundancy synchronization.
  • the problem is that the Preamble resources and signaling are saved, and the switching efficiency is improved.
  • an embodiment of the present invention provides a user equipment group switching device, where the device includes: a first sending module 1101, configured to send a measurement report of its own to the original base station S-eNB and each UE in the user equipment UE group. a measurement report; the UE group includes a proxy UE and each of the UEs;
  • the receiving confirmation module 1102 is configured to receive, by the S-eNB, a handover configuration message, where the handover configuration message includes at least a physical random access channel (PRACH) resource and a cell radio network temporary identifier (C-RNTI) allocated by the T-eNB for the proxy UE, and The C-RNTI allocated by the handover UE that needs to be handed over;
  • the handover configuration message includes at least a physical random access channel (PRACH) resource and a cell radio network temporary identifier (C-RNTI) allocated by the T-eNB for the proxy UE, and The C-RNTI allocated by the handover UE that needs to be handed over;
  • PRACH physical random access channel
  • C-RNTI cell radio network temporary identifier
  • the sending identifier module 1103 is configured to separately send a handover configuration message to each handover UE.
  • the handover configuration message includes at least a C-RNTI allocated by the T-eNB for the handover UE.
  • the first access module 1104 is configured to initiate a random access to the T-eNB according to the PRACH resource, and establish an uplink synchronization connection with the T-eNB.
  • the device further includes:
  • the first handover completion module 1105 is configured to: after establishing an uplink synchronization connection with the T-eNB, send a first handover complete message to the T-eNB; and send a second handover complete message to each handover UE in the UE group respectively;
  • the second handover completion module 1106 is configured to receive a third handover complete message sent by each handover UE in the UE group and forward the message to the T-eNB.
  • the device further includes:
  • a second access module 1107 after initiating random access to the T-eNB according to the PRACH resource, if the random access failure is initiated to the T-eNB according to the PRACH resource, the reestablishing the synchronous connection request is initiated; if the reestablishing the synchronous connection fails, A handover notification message is sent to each handover UE in the UE group, and each handover UE in the UE group is notified to establish a synchronization connection.
  • the device provided by the embodiment of the present invention sends a measurement report of the UE and a measurement report of the UE in the UE group to the S-eNB; the S-eNB sends a handover configuration message; sends a handover configuration message to each handover UE separately; according to the PRACH resource Initiating random access to the T-eNB and establishing an uplink synchronization connection with the T-eNB, which solves the problem that the proxy UE and each handover UE respectively switch to the T-eNB when the user equipment group handover is performed, resulting in consumption of a large amount of Preamble and
  • the problem of signaling and the problem of redundant synchronization of the single-link MUCC state saves Preamble resources and signaling and improves handover efficiency.
  • an embodiment of the present invention provides a user equipment group switching apparatus, where the apparatus includes: a second sending module 1401, configured to send a measurement report to a proxy user equipment UE, so as to proxy the UE to send a measurement report and a measurement report of the proxy UE. Forwarding to the original base station S-eNB;
  • the third handover completion module 1403 is configured to complete the handover according to the C-RNTI, and send a third handover complete message to the proxy UE, so that the handover complete message is forwarded by the proxy UE to the T-eNB.
  • an embodiment of the present invention provides a user equipment group switching apparatus, where the apparatus includes: a receiving switching module 1501, configured to receive a handover request message sent by an original base station S-eNB; and the handover request message includes at least a proxy UE and at least Context information of a handover UE that needs to be handed over and a composite relationship between the proxy UE and the handover UE;
  • the allocation identifier module 1502 is configured to allocate resources to each of the handover UEs that need to be handed over in the proxy UE and the UE group; the resource includes at least a physical random access channel PRACH resource and a cell radio network temporary identifier C-RNTI allocated to the proxy UE, and a C-RNTI allocated for each handover UE that needs to be handed over; a handover configuration message is sent to the S-eNB; the handover configuration message includes at least a PRACH resource and a C-RNTI allocated for the proxy UE, and a handover UE allocated for each handover a third access module 1503, configured to receive an access request sent by the proxy UE according to the PRACH resource, and establish an uplink synchronization connection with the proxy UE;
  • the fourth handover completion module 1504 is configured to receive, by the proxy UE, the handover UE to complete the handover according to the handover completion message of the C-RNTI, and learn that the handover UE completes the handover.
  • the device further includes:
  • the path conversion requesting module 1505 is configured to receive, by the proxy UE, the handover UE according to the C-RNTI After the handover completion message is completed, the path conversion request is sent to the mobility management entity MME.
  • the path conversion confirmation module 1506 is configured to receive a path conversion acknowledgement message sent by the MME after converting the proxy UE and the handover UE downlink path according to the path conversion request. ;
  • the second release module 1507 is configured to send a release context message to the MME, so that the MME sends a release context command to the S-eNB, so that the S-eNB releases the context resource of the proxy UE and the handover UE.
  • an embodiment of the present invention provides a user equipment group switching system, where the system includes: an original base station S-eNB 1701, a proxy user equipment UE 1702, a handover UE1703 in a group, and a destination base station T-eNB 1704;
  • the S-eNB 1701 is used to implement the functions as described in Embodiment 7. The specific steps are not described in detail.
  • the proxy UE 1702 is used to implement the functions as described in Embodiment 8. The specific steps are not described here.
  • the functions described in the ninth embodiment are not described in detail.
  • the destination base station T-eNB 1704 is used to implement the functions as described in the tenth embodiment, and specific steps are not described herein.
  • the system provided by the embodiment of the present invention sends a handover request message to the T-eNB when the proxy UE and the at least one UE in the UE group need to be handed over; receives the handover configuration message sent by the T-eNB and sends the handover configuration message to the proxy UE;
  • the message includes at least a PRACH resource and a C-RNTI allocated by the T-eNB for the proxy UE and a C-RNTI allocated for each handover UE that needs to be handed over; receiving a release context message sent by the T-eNB, and releasing the proxy UE and the handover UE
  • the context resource solves the problem that the proxy UE and each handover UE respectively need to switch with the T-eNB when the user equipment group handover is performed, which causes a large amount of Preamble and signaling to be consumed and the single link MUCC state to perform redundancy synchronization.
  • the problem is that the Preamble resources and signaling are saved, and the switching efficiency is improved.
  • the user equipment group switching device provided by the foregoing embodiment performs the user equipment group switching, only the division of the foregoing functional modules is illustrated. In actual applications, the foregoing functions may be allocated differently according to requirements.
  • the function module is completed, that is, the internal structure of the device is divided into different functional modules to complete all or part of the functions described above.
  • the embodiment of the user equipment group switching device, the system, and the user equipment group switching method provided by the foregoing embodiments are in the same concept. For details, refer to the method embodiment, and details are not described herein again.
  • a person skilled in the art may understand that all or part of the steps of implementing the above embodiments may be completed by hardware, or may be instructed by a program to execute related hardware, and the program may be stored in a computer readable storage medium.
  • the storage medium mentioned may be a read only memory, a magnetic disk or an optical disk or the like.

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Abstract

本发明公开了一种用户设备组切换方法、设备和系统,属于无线网络通信领域。方法包括:根据代理UE发送的代理UE的测量报告和UE组内的UE的测量报告,判断代理UE和UE组内的UE是否需要切换;当代理UE和UE组内至少一个UE需要切换时,向T-eNB发送切换请求消息;接收T-eNB发送的切换配置消息并发送给代理UE;接收T-eNB发送的释放上下文消息,并释放代理UE和切换UE的上下文资源。本发明解决了目前UE组切换时代理UE和每个切换UE均要与T-eNB进行切换而导致需要消耗大量的Preamble和信令的问题以及单链路MUCC状态进行冗余同步的问题,节省了Preamble资源和信令,提高了切换效率。

Description

一种用户设备组切换方法、 设备和系统 技术领域
本发明涉及无线网络通信领域, 特别涉及一种用户设备组切换方法、 设备 和系统。 背景技术
MUCC ( Multiple UEs Cooperative Communication, 多用户设备合成通信), 是指在 eNB ( evolved NodeB, 演进 NodeB ) 与某一 UE ( User Equipment, 用 户设备)通信时, 可以直接与 eNB通信, 也可以与该 UE附近的代理 UE (也 称为 S-UE, 即支撑用户设备)通信, 代理 UE将数据转发到该 UE后两 UE间 再进行通信。这样可以选择信道条件最好的 UE作为代理 UE传输上下行数据, 达到多用户分集的效果。 单链路 MUCC, 是指代理 UE代理一个或多个 UE与 eNB通信, 代理 UE和各 UE组成一个 UE组, 其中代理 UE与 eNB的连接处 于同步态, 而各 UE与 eNB的连接处于失步态,要发送上行数据只能通过代理 UE。 代理 UE和其代理的各 UE由于位置发生变化, 可能需要为 UE组切换服 务的 eNB。
目前, 当代理 UE和其代理的各 UE需要进行切换时, UE组中的每个准许 切换的 UE ( 包括代理 UE 和各 UE ) 需要从 S-eNB ( Serving eNB , 原 eNB )切换到 T-eNB ( Target eNB, 目的 eNB ), 每个准许切换的 UE都要发 起随机接入过程, 分别进行切换。
在实现本发明的过程中, 发明人发现现有技术至少存在以下问题: 现有技术 UE组切换过程中, 代理 UE和每个要切换的 UE均要发起随机 接入过程, 分别进行切换, 这就导致需要消耗大量的 Preamble和信令; 并且对 于单链路 MUCC状态下的各 UE, 只要不脱离和代理 UE的合成关系, 切换到 同步状态之后还要回到失步态, 因而没必要为了切换而额外进行同步过程。 发明内容
为了解决现有技术的问题, 本发明实施例提供了一种用户设备组切换方 法、 设备和系统。 所述技术方案如下:
第一方面,本发明实施例提供了一种用户设备组切换方法,所述方法包括: 根据所述代理用户设备 UE发送的所述代理 UE的测量 告和 UE组内的 UE的测量报告, 判断所述代理 UE和 UE组内的每个 UE是否需要切换; 所述 UE组包括所述代理 UE和所述每个 UE;
当所述代理 UE和所述 UE组内至少一个 UE需要切换时, 向目的基站 T-eNB发送切换请求消息; 所述切换请求消息中至少包括所述代理 UE和所述 至少一个需要切换的切换 UE的上下文信息以及所述代理 UE和所述切换 UE 之间的合成关系;
接收所述 T-eNB发送的切换配置消息并发送给所述代理 UE; 所述切换配 置消息中至少包括所述 T-eNB 为所述代理 UE 分配的物理随机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI 以及为所述每个需要切换的切 换 UE分配的 C-RNTI;
接收所述 T-eNB发送的释放上下文消息, 并释放所述代理 UE和所述切换 UE的上下文资源。
在第一方面的第一种可能的实现方式中, 所述方法还包括:
当所述代理 UE和所述 UE组内至少一个 UE需要切换时, 通过移动性管 理实体 MME向 T-eNB发送所述切换请求消息;所述切换请求消息中至少包括 所述代理 UE和所述至少一个需要切换的切换 UE的上下文信息以及所述代理 UE和所述切换 UE之间的合成关系;
通过所述 MME接收所述 T-eNB发送的所述切换配置消息并发送给所述代 理 UE; 所述切换配置消息中至少包括所述 T-eNB 为所述代理 UE 分配的 PRACH资源和 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI; 通过所述 MME接收所述 T-eNB发送的释放上下文消息,并释放所述代理 UE和所述切换 UE的上下文资源。
第二方面,本发明实施例提供了一种用户设备组切换方法,所述方法包括: 向原基站 S-eNB发送自身的测量报告和用户设备 UE组内的 UE的测量报 告; 所述 UE组包括所述代理 UE和所述每个 UE;
接收所述 S-eNB 发送切换配置消息; 所述切换配置消息中至少包括所述 T-eNB为所述代理 UE分配的物理随机接入信道 PRACH资源和小区无线网络 临时标识 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI; 向所述每个切换 UE分别发送切换配置消息; 所述切换配置消息中至少包 括所述 T-eNB为所述切换 UE分配的 C-RNTI;
根据所述 PRACH资源向所述 T-eNB发起随机接入,与所述 T-eNB建立上 行同步连接。
在第二方面的第一种可能的实现方式中,所述与所述 T-eNB建立上行同步 连接之后, 还包括:
向所述 T-eNB发送第一切换完成消息;
分别向所述 UE组内的每个切换 UE发送第二切换完成消息;
接收所述 UE组内的每个切换 UE发送的第三切换完成消息并转发给所述 T-eNB。
在第二方面的第二种可能的实现方式中, 所述根据所述 PRACH资源向所 述 T-eNB发起随机接入之后, 还包括:
如果根据所述 PRACH资源向所述 T-eNB发起随机接入失败, 则发起重建 同步连接请求;
如果重建同步连接失败, 则向所述 UE组内每个切换 UE发送重建通知消 息, 通知所述 UE组内每个切换 UE各自分别建立同步连接。
第三方面,本发明实施例提供了一种用户设备组切换方法,所述方法包括: 向代理用户设备 UE发送测量报告, 以便由所述代理 UE将所述测量报告 以及代理 UE的测量报告转发给原基站 S-eNB;
接收所述代理 UE发送的切换配置消息; 所述切换配置消息至少包括目的 基站 T-eNB分配的小区无线网络临时标识 C-RNTI;
根据所述 C-RNTI完成自身切换, 并向所述代理 UE发送第三切换完成消 息, 以便所述代理 UE将所述切换完成消息转发给目的基站 T-eNB。
第四方面,本发明实施例提供了一种用户设备组切换方法,所述方法包括: 接收原基站 S-eNB发送的切换请求消息;所述切换请求消息中至少包括代 理用户设备 UE和 UE组内至少一个需要切换的切换 UE的上下文信息以及所 述代理 UE和所述切换 UE之间的合成关系;
为所述代理 UE和所述 UE组内的每个需要切换的切换 UE分配资源; 所 述资源至少包括为所述代理 UE分配的物理随机接入信道 PRACH资源和小区 无线网络临时标识 C-RNTI 以及为所述每个需要切换的切换 UE 分配的 C-RNTI; 向所述 S-eNB发送切换配置消息;所述切换配置消息中至少包括为所述代 理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需要切换的切换 UE分 配的 C-RNTI;
接收所述代理 UE根据所述 PRACH资源发送的接入请求,与所述代理 UE 建立上行同步连接;
接收所述代理 UE转发的所述切换 UE根据所述 C-RNTI完成切换的切换 完成消息, 获知所述切换 UE完成切换。
在第四方面的第一种可能的实现方式中, 所述接收所述代理 UE转发的所 述切换 UE根据所述 C-RNTI完成切换的切换完成消息之后, 还包括:
向移动性管理实体 MME发送路径转换请求;
接收所述 MME根据所述路径转换请求对所述代理 UE和所述切换 UE下 行路径进行转换后发送的路径转换确认消息;
向所述 MME发送释放上下文消息, 以便所述 MME向所述 S-eNB发送释 放上下文命令使得所述 S-eNB释放所述代理 UE和所述切换 UE的上下文资源。
第五方面,本发明实施例提供了一种用户设备组切换设备,所述设备包括: 判断切换模块, 用于根据所述代理用户设备 UE发送的所述代理 UE的测 量报告和 UE组内的 UE的测量报告, 判断所述代理 UE和 UE组内的每个 UE 是否需要切换; 所述 UE组包括所述代理 UE和所述每个 UE;
切换请求模块, 用于当所述代理 UE和所述 UE组内至少一个 UE需要切 换时, 向目的基站 T-eNB发送切换请求消息; 所述切换请求消息中至少包括所 述代理 UE和所述至少一个需要切换的切换 UE的上下文信息以及所述代理 UE 和所述切换 UE之间的合成关系;
切换确认模块,用于接收所述 T-eNB发送的切换配置消息并发送给所述代 理 UE; 所述切换配置消息中至少包括所述 T-eNB为所述代理 UE分配的物理 随机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI以及为所述每个 需要切换的切换 UE分配的 C-RNTI;
第一释放模块, 用于接收所述 T-eNB发送的释放上下文消息, 并释放所述 代理 UE和所述切换 UE的上下文资源。
在第五方面的第一种可能的实现方式中, 所述设备还包括:
第一转发模块, 用于当所述代理 UE和所述 UE组内至少一个 UE需要切 换时, 通过移动性管理实体 MME向 T-eNB发送所述切换请求消息; 所述切换 请求消息中至少包括所述代理 UE和所述至少一个需要切换的切换 UE的上下 文信息以及所述代理 UE和所述切换 UE之间的合成关系;
第二转发模块,用于通过所述 MME接收所述 T-eNB发送的所述切换配置 消息并发送给所述代理 UE; 所述切换配置消息中至少包括所述 T-eNB为所述 代理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需要切换的切换 UE 分配的 C-RNTI;
第三转发模块,用于通过所述 MME接收所述 T-eNB发送的释放上下文消 息, 并释放所述代理 UE和所述切换 UE的上下文资源。
第六方面,本发明实施例提供了一种用户设备组切换设备,所述设备包括: 第一发送模块, 用于向原基站 S-eNB发送自身的测量报告和用户设备 UE 组内的每个 UE的测量报告; 所述 UE组包括所述代理 UE和所述每个 UE; 接收确认模块,用于接收所述 S-eNB发送切换配置消息; 所述切换配置消 息中至少包括所述 T-eNB为所述代理 UE分配的物理随机接入信道 PRACH资 源和小区无线网络临时标识 C-RNTI以及为所述每个需要切换的切换 UE分配 的 C-RNTI;
发送标识模块, 用于向所述每个切换 UE分别发送切换配置消息; 所述切 换配置消息中至少包括所述 T-eNB为所述切换 UE分配的 C-RNTI;
第一接入模块, 用于根据所述 PRACH资源向所述 T-eNB发起随机接入, 与所述 T-eNB建立上行同步连接。
在第六方面的第一种可能的实现方式中, 所述设备还包括
第一切换完成模块, 用于与所述 T-eNB 建立上行同步连接之后, 向所述 T-eNB发送第一切换完成消息; 分别向所述 UE组内的每个切换 UE发送第二 切换完成消息;
第二切换完成模块, 用于接收所述 UE组内的每个切换 UE发送的第三切 换完成消息并转发给所述 T-eNB。
在第六方面的第二种可能的实现方式中, 所述设备还包括:
第二接入模块,用于根据所述 PRACH资源向所述 T-eNB发起随机接入之 后, 如果根据所述 PRACH资源向所述 T-eNB发起随机接入失败, 则发起重建 同步连接请求; 如果重建同步连接失败, 则向所述 UE组内每个切换 UE发送 重建通知消息, 通知所述 UE组内每个切换 UE分别建立同步连接。
第七方面,本发明实施例提供了一种用户设备组切换设备,所述设备包括: 第二发送模块,用于向代理用户设备 UE发送测量报告,以便所述代理 UE 将所述测量报告以及代理 UE的测量报告转发给原基站 S-eNB;
接收标识模块, 用于接收所述代理 UE发送的切换配置消息; 所述切换配 置消息至少包括目的基站 T-eNB分配的小区无线网络临时标识 C-RNTI;
第三切换完成模块, 用于根据所述 C-RNTI完成自身切换, 并向所述代理 UE发送第三切换完成消息, 以便由所述代理 UE将所述切换完成消息转发给 目的基站 T-eNB。
第八方面,本发明实施例提供了一种用户设备组切换设备,所述设备包括: 接收切换模块,用于接收原基站 S-eNB发送的切换请求消息; 所述切换请 求消息中至少包括代理用户设备 UE和至少一个需要切换的切换 UE的上下文 信息以及所述代理 UE和所述切换 UE之间的合成关系;
分配标识模块, 用于为所述代理 UE和所述 UE组内的每个需要切换的切 换 UE分配资源; 所述资源至少包括为所述代理 UE分配的物理随机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI 以及为所述每个需要切换的切 换 UE分配的 C-RNTI; 向所述 S-eNB发送切换配置消息; 所述切换配置消息 中至少包括为所述代理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需 要切换的切换 UE分配的 C-RNTI;
第三接入模块, 用于接收所述代理 UE根据所述 PRACH资源发送的接入 请求, 与所述代理 UE建立上行同步连接;
第四切换完成模块, 用于接收所述代理 UE转发的所述切换 UE根据所述 C-RNTI完成切换的切换完成消息, 获知所述切换 UE完成切换。
在第八方面的第一种可能的实现方式中, 所述设备还包括:
路径转换请求模块, 用于接收所述代理 UE转发的所述切换 UE根据所述 C-RNTI完成切换的切换完成消息之后, 向移动性管理实体 MME发送路径转 换请求;
路径转换确认模块, 用于接收所述 MME根据所述路径转换请求对所述代 理 UE和所述切换 UE下行路径进行转换后发送的路径转换确认消息;
第二释放模块, 用于向所述 MME发送释放上下文消息, 以便所述 MME 向所述 S-eNB发送释放上下文命令使得所述 S-eNB释放所述代理 UE和所述切 换 UE的上下文资源。
第九方面,本发明实施例提供了一种用户设备组切换系统,所述系统包括: 原基站 S-eNB、代理用户设备 UE、代理组内的切换 UE、 目的基站 T-eNB; 所述 S-eNB, 用于完成第一方面所述的功能;
所述代理 UE, 用于完成第二方面所述的功能;
所述代理组内的切换 UE, 用于完成第三方面所述的功能;
目的基站 T-eNB, 用于完成第四方面所述的功能。
本发明实施例提供的技术方案的有益效果是:
当判断代理 UE和 UE组内的至少一个 UE需要切换时, 向 T-eNB发送切 换请求消息; 接收 T-eNB发送的切换配置消息并发送给代理 UE; 切换配置消 息中至少包括 T-eNB为代理 UE分配的 PRACH资源和 C-RNTI以及为每个需 要切换的切换 UE分配的 C-RNTI; 接收 T-eNB发送的释放上下文消息, 并释 放代理 UE和切换 UE的上下文资源, 解决了目前用户设备组切换时代理 UE 和每个切换 UE均要与 T-eNB分别进行切换而导致需要消耗大量的 Preamble 和信令的问题以及单链路 MUCC状态进行冗余同步的问题, 节省了 Preamble 资源和信令, 提高了切换效率。 附图说明
为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所 需要使用的附图作筒单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明 的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下, 还可以根据这些附图获得其他的附图。
图 1是本发明实施例一提供的用户设备组切换方法流程图;
图 2是本发明实施例二提供的用户设备组切换方法流程图;
图 3是本发明实施例三提供的用户设备组切换方法流程图;
图 4是本发明实施例四提供的用户设备组切换方法流程图;
图 5是本发明实施例五提供的用户设备组切换方法流程图;
图 6是本发明实施例五提供的用户设备组切换方法操作示意图;
图 7是本发明实施例六提供的用户设备组切换方法流程图;
图 8是本发明实施例六提供的用户设备组切换方法操作示意图;
图 9是本发明实施例七提供的用户设备组切换设备第一结构示意图; 图 10是本发明实施例七提供的用户设备组切换设备第二结构示意图; 图 11是本发明实施例八提供的用户设备组切换设备第一结构示意图; 图 12是本发明实施例八提供的用户设备组切换设备第二结构示意图; 图 13是本发明实施例八提供的用户设备组切换设备第三结构示意图; 图 14是本发明实施例九提供的用户设备组切换设备第一结构示意图; 图 15是本发明实施例十提供的用户设备组切换设备第一结构示意图; 图 16是本发明实施例十提供的用户设备组切换设备第二结构示意图; 图 17是本发明实施例十一提供的用户设备组切换系统结构示意图。 具体实施方式
为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明 实施方式作进一步地详细描述。 实施例一
参见图 1 , 本发明实施例提供了一种用户设备组切换方法, 该方法包括: 101、 根据代理用户设备 UE发送的代理 UE的测量 告和 UE组内的 UE 的测量报告, 判断代理 UE和 UE组内的每个 UE是否需要切换; 该 UE组包 括代理 UE和所述每个 UE;
102、 当代理 UE和 UE组内至少一个 UE需要切换时, 向目的基站 T-eNB 发送切换请求消息; 切换请求消息中至少包括代理 UE和至少一个需要切换的 切换 UE的上下文信息以及代理 UE和切换 UE之间的合成关系;
103、接收 T-eNB发送的切换配置消息并发送给代理 UE;切换配置消息中 至少包括 T-eNB为代理 UE分配的 PRACH ( PhysicalRandom Access Channel, 物理随机接入信道) 资源和 C-RNTI(CellRadioNetworkTemporaryIdentifier, 小 区无线网络临时标识)以及为每个需要切换的切换 UE分配的 C-RNTI;
104、 接收 T-eNB发送的释放上下文消息, 并释放代理 UE和切换 UE的 上下文资源。
具体地, 该方法还包括:
当代理 UE和 UE组内至少一个 UE需要切换时,通过移动性管理实体 MME 向 T-eNB发送切换请求消息; 切换请求消息中至少包括代理 UE和至少一个需 要切换的切换 UE的上下文信息以及代理 UE和切换 UE之间的合成关系; 通过 MME接收 T-eNB发送的切换配置消息并发送给代理 UE; 切换配置 消息中至少包括 T-eNB为代理 UE分配的 PRACH资源和 C-RNTI以及为每个 需要切换的切换 UE分配的 C-RNTI;
通过 MME接收 T-eNB发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源。
本发明实施例提供的方法, 当判断代理 UE和 UE组内的至少一个 UE需 要切换时, 向 T-eNB发送切换请求消息; 接收 T-eNB发送的切换配置消息并 发送给代理 UE; 切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH 资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 接收 T-eNB 发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源, 解决了目 前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导 致需要消耗大量的 Preamble和信令的问题以及单链路 MUCC状态进行冗余同 步的问题, 节省了 Preamble资源和信令, 提高了切换效率。 实施例二
参见图 2, 本发明实施例提供了一种用户设备组切换方法, 方法包括:
201、 向 S-eNB ( Serving eNB, 原基站)发送自身的测量报告和用户设备 UE组内的 UE的测量报告; 该 UE组包括代理 UE和所述每个 UE;
202、 接收 S-eNB发送切换配置消息; 切换配置消息中至少包括 T-eNB为 代理 UE 分配的物理随机接入信道 PRACH 资源和小区无线网络临时标识 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI;
203、 向每个切换 UE分别发送切换配置消息; 切换配置消息中至少包括 T-eNB为切换 UE分配的 C-RNTI;
204、 根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立上行同步 连接。
具体地, 与 T-eNB建立上行同步连接之后, 还包括:
向 T-eNB发送第一切换完成消息;
分别向 UE组内的每个切换 UE发送第二切换完成消息;
接收 UE组内的每个切换 UE发送的第三切换完成消息并转发给 T-eNB。 具体地, 根据 PRACH资源向 T-eNB发起随机接入之后, 还包括: 如果根据 PRACH资源向 T-eNB发起随机接入失败, 则发起重建同步连接 请求;
如果重建同步连接失败, 则向 UE组内每个切换 UE发送重建通知消息, 通知 UE组内每个切换 UE各自分别建立同步连接。
本发明实施例提供的方法, 向 S-eNB发送自身的测量报告和 UE组内的 UE的测量报告; 接收 S-eNB发送切换配置消息; 向每个切换 UE分别发送切 换配置消息; 根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立上行同 步连接, 解决了目前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB 分别进行切换而导致需要消耗大量的 Preamble 和信令的问题以及单链路 MUCC状态进行冗余同步的问题, 节省了 Preamble资源和信令, 提高了切换 效率。 实施例三
参见图 3, 本发明实施例提供了一种用户设备组切换方法, 方法包括:
301、 向代理用户设备 UE发送测量报告, 以便代理 UE将测量报告以及代 理 UE的测量报告转发给原基站 S-eNB;
302、 接收代理 UE发送的切换配置消息; 切换配置消息至少包括目的基 站 T-eNB分配的小区无线网络临时标识 C-RNTI;
303、 根据 C-RNTI完成自身切换, 并向代理 UE发送第三切换完成消息, 以便由代理 UE将切换完成消息转发给目的基站 T-eNB。
本发明实施例提供的方法, 向代理 UE发送测量报告; 接收代理 UE发送 的切换配置消息; 根据 C-RNTI完成自身切换, 并向代理 UE发送第三切换完 成消息, 以便代理 UE将切换完成消息通知 T-eNB, 解决了目前用户设备组切 换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导致需要消耗大量 的 Preamble和信令的问题以及单链路 MUCC状态进行冗余同步的问题, 节省 了 Preamble资源和信令, 提高了切换效率。 实施例四
参见图 4, 本发明实施例提供了一种用户设备组切换方法, 方法包括:
401、 接收原基站 S-eNB发送的切换请求消息; 该切换请求消息中至少包 括代理 UE和 UE组内至少一个需要切换的切换 UE的上下文信息以及代理 UE 和切换 UE之间的合成关系;
402、 为代理 UE和 UE组内的每个需要切换的切换 UE分配资源; 资源至 少包括为代理 UE分配的物理随机接入信道 PRACH资源和小区无线网络临时 标识 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 向 S-eNB发送 切换配置消息; 切换配置消息中至少包括为代理 UE 分配的 PRACH 资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI;
403、 接收代理 UE根据 PRACH资源发送的接入请求, 与代理 UE建立上 行同步连接;
404、接收代理 UE转发的切换 UE根据 C-RNTI完成切换的切换完成消息, 获知切换 UE完成切换。
具体地, 接收代理 UE转发的切换 UE根据 C-RNTI完成切换的切换完成 消息之后, 还包括:
向移动性管理实体 MME发送路径转换请求;
接收 MME根据路径转换请求对代理 UE和切换 UE下行路径进行转换后 发送的路径转换确认消息;
向 MME发送释放上下文消息, 以便 MME向 S-eNB发送释放上下文命令 使得 S-eNB释放代理 UE和切换 UE的上下文资源。
本发明实施例提供的方法, 当接收 S-eNB 发送的切换请求消息, 为代理 UE和 UE组内的每个需要切换的切换 UE分配资源; 向 S-eNB发送切换配置 消息; 接收代理 UE根据 PRACH资源发送的接入请求, 与代理 UE建立上行 同步连接; 接收代理 UE转发的切换 UE根据 C-RNTI完成切换的切换完成消 息, 获知切换 UE完成切换, 解决了目前用户设备组切换时代理 UE和每个切 换 UE均要与 T-eNB分别进行切换而导致需要消耗大量的 Preamble和信令的问 题以及单链路 MUCC状态进行冗余同步的问题,节省了 Preamble资源和信令, 提高了切换效率。 实施例五
参见图 5, 本发明实施例提供了一种用户设备组切换方法, 该方法包括: 501、 代理 UE接收 UE组内的 UE发送的测量报告, 并将接收的 UE的测 量报告和自身的测量报告一起发送给 S-eNB;
具体地, 在 UE组内, 中间起转发作用的 UE称为代理 UE, 也称为 S-UE ( Supporting UE, 支撑 UE ), 被转发的 UE 称为 B-UE ( Benefitted UE, 受益 UE ); 一个代理 UE可支撑多个 UE; 代理 UE和其支撑的每个 UE组成 UE组。 参见图 6, 第 0步 UE将测量报告发给代理 UE; 第 1步代理 UE将每 个 UE的测量报告和自身的测量报告一起发送给 S-eNB。
502、 S-eNB根据代理 UE发送的测量报告, 判断代理 UE和 UE组内的 UE是否需要切换;
其中, 该测量报告包括代理 UE的测量报告和 UE组内每个切换 UE的测 量报告; S-eNB收到代理 UE发送的测量报告后,根据预定的规则判断代理 UE 和 UE组内的切换 UE是否需要切换, 比如根据信道通信质量参数判断 UE的 通信情况进而判断是否需要切换。 参见图 6, 第 2步 S-eNB进行切换判断。
503、当 S-eNB判定代理 UE和 UE组内至少一个 UE需要切换时,向 T-eNB 发送切换请求消息;
具体地, 该切换请求消息中至少包括代理 UE和至少一个需要切换的切换 UE的上下文信息以及代理 UE和切换 UE之间的合成关系; S-eNB根据代理 UE发送的测量报告对代理 UE和 UE组内的 UE是否需要切换进行判断,如果 代理 UE和 UE组内的至少一个 UE需要切换, 则 S-eNB向 T-eNB发送的切换 请求消息; 其他不需要切换的 UE重新建立同步连接; 如果 S-eNB判定代理 UE和 UE组内的 UE都不需要切换时, 则不向 T-eNB发送切换请求消息。 参 见图 6, 第 3步 S-eNB向 T-eNB发送切换请求消息。
504、 S-eNB接收 T-eNB发送的切换配置消息并转发送给代理 UE;
具体地, 该切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH资 源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 其中, PRACH 资源包括为 Preamble。 参见图 6, 第 4步中 T-eNB进行准入控制, 为代理 UE 分配 PRACH资源和为代理 UE和每个准许接入的切换 UE分配 C-RNTI; 第 5 步 T-eNB向 S-eNB发送切换配置消息; 第 6步 S-eNB收到切换配置消息后, 向代理 UE发送切换命令 ( RRC连接重配消息), 其中包含了分配给代理 UE 的 PRACH资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI。
505、代理 UE向每个切换 UE分别发送切换配置消息; 切换配置消息中包 括 T-eNB为切换 UE分配的 C-RNTI;
具体地,代理 UE接收到切换配置消息后取出自己 PRACH资源和 C-RNTI, 然后向每个切换 UE分别发送切换配置消息; 切换配置消息中至少包括 T-eNB 为切换 UE分配的 C-RNTI; 参见图 6, 第 7步代理 UE分别向每个被准许切换 的切换 UE发送切换命令 ( RRC连接重配消息), RRC连接重配消息中包括 T-eNB为 UE组内的切换 UE分配的 C-RNTI以及其他相关信息。 需要说明的是, 各切换 UE被 S-eNB判定需要切换时, 如果没有接收到包 含 T-eNB为其分配的 C-RNTI的切换配置消息,切换 UE向 S-eNB发送随机接 入请求, 建立同步连接直接与 S-eNB进行通信。
506、 代理 UE根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立 上行同步连接, 向 T-eNB发送第一切换完成消息, 并分别向 UE组内的每个切 换 UE发送第二切换完成消息;
具体地, 参见图 6, 第 8步中代理 UE根据 PRACH资源向 T-eNB发起基 于非竟争的随机接入, 并得到 T-eNB的时间提前量和发送上行数据的权限; 第 9步中代理 UE向 T-eNB发送第一切换完成消息, 即 RRC重配完成消息, 表 明代理 UE已经切换完成; 第 10步中代理 UE向被准许切换的 UE发送第二切 换完成消息, 通知代理 UE已经切换完成。
需要说明的是, 代理 UE根据 PRACH资源向 T-eNB发起随机接入之后, 如果根据 PRACH资源向 T-eNB发起随机接入失败,则发起重建同步连接请求; 如果重建同步连接失败, 则向 UE组内每个切换 UE发送重建通知消息, 通知 UE组内每个切换 UE分别建立同步连接。
507、代理 UE接收 UE组内的每个切换 UE发送的第三切换完成消息并转 发给 T-eNB。
具体地, 参见图 6, 第 11步中各被准许切换的切换 UE向代理 UE发送第 三切换完成消息即重配完成消息, 表明各切换 UE 已经切换完成; 第 12步中 代理 UE向 T-eNB转发各被准许切换的切换 UE的第三切换完成消息即重配完 成消息。
508、 T-eNB向 MME发送路径转换请求, 并接收 MME根据路径转换请求 对代理 UE和切换 UE下行路径进行转换后发送的路径转换确认消息。
具体地, 参见图 6, 第 13步中 T-eNB向 MME发送路径转换请求消息, 请求对切换成功的各 UE下行路径进行转换;第 14步中 MME及 S-GW完成各 UE的下行路径转换; 第 15步中 MME向 T-eNB发送路径转换请求确认消息;
509、 S-eNB接收 T-eNB发送的释放上下文消息, 释放代理 UE和 UE组 内的切换 UE的上下文资源。
具体地, 参见图 6, 第 16步中 T-eNB向 S-eNB发送释放 UE上下文消息; 第 17步中 S-eNB释放所有切换成功的 UE的上下文资源。
本发明实施例提供的方法, 当判断代理 UE和 UE组内至少一个 UE需要 切换时, 向 T-eNB 发送切换请求消息; 并将包含 T-eNB 为代理 UE分配的 PRACH资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI的切换 配置消息发送给代理 UE, 代理 UE和各切换 UE完成切换时, 释放代理 UE和 各切换 UE的上下文资源, 解决了目前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导致需要消耗大量的 Preamble和信令的问题 以及单链路 MUCC状态进行冗余同步的问题, 节省了 Preamble资源和信令, 提高了切换效率。 实施例六
参见图 7, 本发明实施例提供了一种用户设备组切换方法, 该方法包括: 701、 代理 UE接收 UE组内的 UE发送的测量报告, 并将接收的 UE的测 量报告和自身的测量报告一起发送给 S-eNB;
702、 S-eNB根据代理 UE发送的测量报告, 判断代理 UE和 UE组内的 UE是否需要切换;
步骤 701-步骤 702的具体过程参见实施例二中的步骤 501-502,不再赘述。
703、 当 S-eNB判定代理 UE和 UE组内至少一个切换 UE需要切换时,通 过 MME向 T-eNB发送切换请求消息;
具体地, 该切换请求消息中至少包括代理 UE和至少一个需要切换的切换 UE的上下文信息以及代理 UE和切换 UE之间的合成关系; S-eNB根据代理 UE发送的测量报告对代理 UE和 UE组内的 UE是否需要切换进行判断,如果 代理 UE和 UE组内的至少一个 UE需要切换, 则 S-eNB通过 MME向 T-eNB 发送切换请求消息。 其他不需要切换的 UE重新建立同步连接; 如果 S-eNB判 定代理 UE和 UE组内的 UE都不需要切换时, 则不向 T-eNB发送切换请求消 息。 参见图 8, 第 3步 S-eNB向 MME发送切换请求消息; 第 4步 MME将该 切换请求消息发送给 T-eNB。
704、 S-eNB通过 MME接收 T-eNB发送的切换配置消息并转发送给代理
UE;
具体地, 该切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH资 源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 其中, PRACH 资源包括为 Preamble。
参见图 8, 第 5步中 T-eNB进行准入控制, 为代理 UE分配 PRACH资源 和为代理 UE和每个准许接入的切换 UE分配 C-RNTI; 第 6步 T-eNB向 MME 发送切换配置消息; 第 7步 MME向 S-eNB发送切换配置消息; 第 8步 S-eNB 收到切换配置消息后, 向代理 UE发送切换命令( RRC连接重配消息 ), 其中 包含分配给代理 UE的 PRACH资源和 C-RNTI以及为每个需要切换的切换 UE 分配的 C-RNTI。
705、代理 UE向每个切换 UE分别发送切换配置消息; 切换配置消息中包 括 T-eNB为切换 UE分配的 C-RNTI;
706、 代理 UE根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立 上行同步连接, 向 T-eNB发送第一切换完成消息, 并分别向 UE组内的每个切 换 UE发送第二切换完成消息;
707、代理 UE接收 UE组内的每个切换 UE发送的第三切换完成消息并转 发给 T-eNB。
708、 T-eNB向 MME发送路径转换请求, 并接收 MME根据路径转换请求 对代理 UE和切换 UE下行路径进行转换后发送的路径转换确认消息。
步骤 705-步骤 708的具体过程参见实施例二中的步骤 505-508,不再赘述。
709、 S-eNB通过 MME接收 T-eNB发送的释放上下文消息, 释放代理 UE 和 UE组内的切换 UE的上下文资源。
具体地, 参见图 8 , 第 18步中 T-eNB向 MME发送释放 UE上下文消息; 第 19步中 S-eNB收到 MME发送的释放 UE上下文消息后, 释放所有切换成 功的 UE的上下文资源。
本发明实施例提供的方法, 当判断代理 UE和 UE组内的至少一个 UE需 要切换时, 通过 MME向 T-eNB发送切换请求消息; 并将包含 T-eNB为代理 UE分配的 PRACH 资源和 C-RNTI 以及为每个需要切换的切换 UE分配的 C-RNTI的切换配置消息发送给代理 UE, 代理 UE和各切换 UE完成切换时, 通过 MME接收 T-eNB的释放请求,释放代理 UE和各切换 UE的上下文资源, 解决了目前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB分别进行 切换而导致需要消耗大量的 Preamble和信令的问题以及单链路 MUCC状态进 行冗余同步的问题, 节省了 Preamble资源和信令, 提高了切换效率。 实施例七
参见图 9, 本发明实施例提供了一种用户设备组切换设备, 该设备包括: 判断切换模块 901 , 用于根据代理用户设备 UE发送的代理 UE的测量报 告和 UE组内的 UE的测量报告,判断代理 UE和 UE组内的每个 UE是否需要 切换; 该 UE组包括代理 UE和所述每个 UE;
切换请求模块 902, 用于当代理 UE和 UE组内至少一个 UE需要切换时, 向目的基站 T-eNB发送切换请求消息; 切换请求消息中至少包括代理 UE和至 少一个需要切换的切换 UE的上下文信息以及代理 UE和切换 UE之间的合成 关系;
切换确认模块 903 , 用于接收 T-eNB 发送的切换配置消息并发送给代理 UE; 切换配置消息中至少包括 T-eNB 为代理 UE 分配的物理随机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI以及为每个需要切换的切换 UE 分配的 C-RNTI;
第一释放模块 904, 用于接收 T-eNB发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源。
具体地, 参见图 10, 该设备还包括:
第一转发模块 905 , 用于当代理 UE和 UE组内至少一个 UE需要切换时, 通过移动性管理实体 MME向 T-eNB发送切换请求消息;切换请求消息中至少 包括代理 UE和至少一个需要切换的切换 UE的上下文信息以及代理 UE和切 换 UE之间的合成关系;
第二转发模块 906, 用于通过 MME接收 T-eNB发送的切换配置消息并发 送给代理 UE; 切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH资 源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI;
第三转发模块 907, 用于通过 MME接收 T-eNB发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源。
本发明实施例提供的设备, 当判断代理 UE和 UE组内的至少一个 UE需 要切换时, 向 T-eNB发送切换请求消息; 接收 T-eNB发送的切换配置消息并 发送给代理 UE; 切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH 资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 接收 T-eNB 发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源, 解决了目 前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导 致需要消耗大量的 Preamble和信令的问题以及单链路 MUCC状态进行冗余同 步的问题, 节省了 Preamble资源和信令, 提高了切换效率。 实施例八
参见图 11 , 本发明实施例提供了一种用户设备组切换设备, 设备包括: 第一发送模块 1101 , 用于向原基站 S-eNB发送自身的测量报告和用户设 备 UE组内的每个 UE的测量报告; 该 UE组包括代理 UE和所述每个 UE;
接收确认模块 1102, 用于接收 S-eNB发送切换配置消息; 该切换配置消 息中至少包括 T-eNB为代理 UE分配的物理随机接入信道 PRACH资源和小区 无线网络临时标识 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI;
发送标识模块 1103, 用于向每个切换 UE分别发送切换配置消息; 切换配 置消息中至少包括 T-eNB为切换 UE分配的 C-RNTI;
第一接入模块 1104, 用于根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立上行同步连接。
具体地, 参见图 12, 该设备还包括:
第一切换完成模块 1105 ,用于与 T-eNB建立上行同步连接之后,向 T-eNB 发送第一切换完成消息; 分别向 UE组内的每个切换 UE发送第二切换完成消 息;
第二切换完成模块 1106, 用于接收 UE组内的每个切换 UE发送的第三切 换完成消息并转发给 T-eNB。
具体地, 参见图 13, 该设备还包括:
第二接入模块 1107, 用于根据 PRACH资源向 T-eNB发起随机接入之后, 如果根据 PRACH资源向 T-eNB发起随机接入失败,则发起重建同步连接请求; 如果重建同步连接失败, 则向 UE组内每个切换 UE发送重建通知消息, 通知 UE组内每个切换 UE各自分别建立同步连接。
本发明实施例提供的设备, 向 S-eNB发送自身的测量报告和 UE组内的 UE的测量报告; 接收 S-eNB发送切换配置消息; 向每个切换 UE分别发送切 换配置消息; 根据 PRACH资源向 T-eNB发起随机接入, 与 T-eNB建立上行同 步连接, 解决了目前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB 分别进行切换而导致需要消耗大量的 Preamble 和信令的问题以及单链路 MUCC状态进行冗余同步的问题, 节省了 Preamble资源和信令, 提高了切换 效率。 实施例九
参见图 14, 本发明实施例提供了一种用户设备组切换设备, 设备包括: 第二发送模块 1401 , 用于向代理用户设备 UE发送测量报告, 以便代理 UE将测量报告以及代理 UE的测量报告转发给原基站 S-eNB;
接收标识模块 1402, 用于接收代理 UE发送的切换配置消息; 切换配置消 息至少包括目的基站 T-eNB分配的小区无线网络临时标识 C-RNTI;
第三切换完成模块 1403, 用于根据 C-RNTI完成自身切换, 并向代理 UE 发送第三切换完成消息, 以便由代理 UE将切换完成消息转发给 T-eNB。
本发明实施例提供的设备, 向代理 UE发送测量报告; 接收代理 UE发送 的切换配置消息; 根据 C-RNTI完成自身切换, 并向代理 UE发送第三切换完 成消息, 以便代理 UE将切换完成消息通知 T-eNB, 解决了目前用户设备组切 换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导致需要消耗大量 的 Preamble和信令的问题以及单链路 MUCC状态进行冗余同步的问题, 节省 了 Preamble资源和信令, 提高了切换效率。 实施例十
参见图 15, 本发明实施例提供了一种用户设备组切换设备, 设备包括: 接收切换模块 1501 , 用于接收原基站 S-eNB发送的切换请求消息; 切换 请求消息中至少包括代理 UE和至少一个需要切换的切换 UE的上下文信息以 及代理 UE和切换 UE之间的合成关系;
分配标识模块 1502, 用于为代理 UE和 UE组内的每个需要切换的切换 UE分配资源;资源至少包括为代理 UE分配的物理随机接入信道 PRACH资源 和小区无线网络临时标识 C-RNTI 以及为每个需要切换的切换 UE 分配的 C-RNTI; 向 S-eNB发送切换配置消息; 切换配置消息中至少包括为代理 UE 分配的 PRACH资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 第三接入模块 1503,用于接收代理 UE根据 PRACH资源发送的接入请求, 与代理 UE建立上行同步连接;
第四切换完成模块 1504, 用于接收代理 UE转发的切换 UE根据 C-RNTI 完成切换的切换完成消息, 获知切换 UE完成切换。
具体地, 参见图 16, 该设备还包括:
路径转换请求模块 1505, 用于接收代理 UE转发的切换 UE根据 C-RNTI 完成切换的切换完成消息之后, 向移动性管理实体 MME发送路径转换请求; 路径转换确认模块 1506, 用于接收 MME根据路径转换请求对代理 UE和 切换 UE下行路径进行转换后发送的路径转换确认消息;
第二释放模块 1507, 用于向 MME发送释放上下文消息, 以便 MME向 S-eNB发送释放上下文命令使得 S-eNB释放代理 UE和切换 UE的上下文资源。
本发明实施例提供的设备, 当接收 S-eNB 发送的切换请求消息, 为代理 UE和 UE组内的每个需要切换的切换 UE分配资源; 向 S-eNB发送切换配置 消息; 接收代理 UE根据 PRACH资源发送的接入请求, 与代理 UE建立上行 同步连接; 接收代理 UE转发的切换 UE根据 C-RNTI完成切换的切换完成消 息, 获知切换 UE完成切换, 解决了目前用户设备组切换时代理 UE和每个切 换 UE均要与 T-eNB分别进行切换而导致需要消耗大量的 Preamble和信令的问 题以及单链路 MUCC状态进行冗余同步的问题,节省了 Preamble资源和信令, 提高了切换效率。 实施例十一
参见图 17, 本发明实施例提供了一种用户设备组切换系统, 该系统包括: 原基站 S-eNB1701、 代理用户设备 UE1702、 组内的切换 UE1703、 目的基 站 T-eNB 1704;
S-eNB1701 , 用于实现如实施例七所述的功能, 具体步骤不再赘述; 代理 UE1702, 用于实现如实施例八所述的功能, 具体步骤不再赘述; 切换 UE1703, 用于实现如实施例九所述的功能, 具体步骤不再赘述; 目的基站 T-eNB1704, 用于实现如实施例十所述的功能, 具体步骤不再赘 述。
本发明实施例提供的系统, 当判断代理 UE和 UE组内的至少一个 UE需 要切换时, 向 T-eNB发送切换请求消息; 接收 T-eNB发送的切换配置消息并 发送给代理 UE; 切换配置消息中至少包括 T-eNB为代理 UE分配的 PRACH 资源和 C-RNTI以及为每个需要切换的切换 UE分配的 C-RNTI; 接收 T-eNB 发送的释放上下文消息, 并释放代理 UE和切换 UE的上下文资源, 解决了目 前用户设备组切换时代理 UE和每个切换 UE均要与 T-eNB分别进行切换而导 致需要消耗大量的 Preamble和信令的问题以及单链路 MUCC状态进行冗余同 步的问题, 节省了 Preamble资源和信令, 提高了切换效率。 需要说明的是: 上述实施例提供的用户设备组切换设备在进行用户设备组 切换时, 仅以上述各功能模块的划分进行举例说明, 实际应用中, 可以根据需 要而将上述功能分配由不同的功能模块完成, 即将设备的内部结构划分成不同 的功能模块, 以完成以上描述的全部或者部分功能。 另外, 上述实施例提供的 用户设备组切换设备、 系统与用户设备组切换方法实施例属于同一构思, 其具 体实现过程详见方法实施例, 这里不再赘述。
本领域普通技术人员可以理解实现上述实施例的全部或部分步骤可以通 过硬件来完成, 也可以通过程序来指令相关的硬件完成, 所述的程序可以存储 于一种计算机可读存储介质中, 上述提到的存储介质可以是只读存储器, 磁盘 或光盘等。
以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的 精神和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的 保护范围之内。

Claims

权 利 要 求 书
1、 一种用户设备组切换方法, 其特征在于, 所述方法包括:
根据所述代理用户设备 UE发送的所述代理 UE的测量 告和 UE组内的 UE的测量报告, 判断所述代理 UE和 UE组内的每个 UE是否需要切换; 所述 UE组包括所述代理 UE和所述每个 UE;
当所述代理 UE和所述 UE组内至少一个 UE需要切换时,向目的基站 T-eNB 发送切换请求消息;所述切换请求消息中至少包括所述代理 UE和所述至少一个 需要切换的切换 UE的上下文信息以及所述代理 UE和所述切换 UE之间的合成 关系;
接收所述 T-eNB发送的切换配置消息并发送给所述代理 UE;所述切换配置 消息中至少包括所述 T-eNB为所述代理 UE分配的物理随机接入信道 PRACH资 源和小区无线网络临时标识 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI;
接收所述 T-eNB发送的释放上下文消息, 并释放所述代理 UE和所述切换 UE的上下文资源。
2、 根据权利要求 1所述的方法, 其特征在于, 所述方法还包括:
当所述代理 UE和所述 UE组内至少一个 UE需要切换时, 通过移动性管理 实体 MME向 T-eNB发送所述切换请求消息; 所述切换请求消息中至少包括所 述代理 UE和所述至少一个需要切换的切换 UE的上下文信息以及所述代理 UE 和所述切换 UE之间的合成关系;
通过所述 MME接收所述 T-eNB发送的所述切换配置消息并发送给所述代 理 UE;所述切换配置消息中至少包括所述 T-eNB为所述代理 UE分配的 PRACH 资源和 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI;
通过所述 MME接收所述 T-eNB发送的释放上下文消息, 并释放所述代理 UE和所述切换 UE的上下文资源。
3、 一种用户设备组切换方法, 其特征在于, 所述方法包括:
向原基站 S-eNB发送自身的测量报告和用户设备 UE组内的每个 UE的测量 报告; 所述 UE组包括所述代理 UE和所述每个 UE; 接收所述 S-eNB 发送切换配置消息; 所述切换配置消息中至少包括所述 T-eNB为所述代理 UE分配的物理随机接入信道 PRACH资源和小区无线网络临 时标识 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI;
向所述每个切换 UE分别发送切换配置消息;所述切换配置消息中至少包括 所述 T-eNB为所述切换 UE分配的 C-RNTI;
根据所述 PRACH资源向所述 T-eNB发起随机接入, 与所述 T-eNB建立上 行同步连接。
4、 根据权利要求 3所述的方法, 其特征在于, 所述与所述 T-eNB建立上行 同步连接之后, 还包括:
向所述 T-eNB发送第一切换完成消息;
分别向所述 UE组内的每个切换 UE发送第二切换完成消息;
接收所述 UE组内的每个切换 UE发送的第三切换完成消息并转发给所述 T-eNB。
5、 根据权利要求 3所述的方法, 其特征在于, 所述根据所述 PRACH资源 向所述 T-eNB发起随机接入之后, 还包括:
如果根据所述 PRACH资源向所述 T-eNB发起随机接入失败, 则发起重建 同步连接请求;
如果重建同步连接失败,则向所述 UE组内每个切换 UE发送重建通知消息, 通知所述 UE组内每个切换 UE各自分别建立同步连接。
6、 一种用户设备组切换方法, 其特征在于, 所述方法包括:
向代理用户设备 UE发送测量报告, 以便由所述代理 UE将所述测量报告以 及代理 UE的测量报告转发给原基站 S-eNB;
接收所述代理 UE发送的切换配置消息;所述切换配置消息至少包括目的基 站 T-eNB分配的小区无线网络临时标识 C-RNTI;
根据所述 C-RNTI完成自身切换,并向所述代理 UE发送第三切换完成消息, 以便由所述代理 UE将所述切换完成消息转发给目的基站 T-eNB。
7、 一种用户设备组切换方法, 其特征在于, 所述方法包括: 接收原基站 S-eNB发送的切换请求消息; 所述切换请求消息中至少包括代 理用户设备 UE和 UE组内至少一个需要切换的切换 UE的上下文信息以及所述 代理 UE和所述切换 UE之间的合成关系;
为所述代理 UE和所述 UE组内的每个需要切换的切换 UE分配资源; 所述 资源至少包括为所述代理 UE分配的物理随机接入信道 PRACH资源和小区无线 网络临时标识 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI; 向所述 S-eNB发送切换配置消息; 所述切换配置消息中至少包括为所述代 理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需要切换的切换 UE分配 的 C-RNTI;
接收所述代理 UE根据所述 PRACH资源发送的接入请求, 与所述代理 UE 建立上行同步连接;
接收所述代理 UE转发的所述切换 UE根据所述 C-RNTI完成切换的切换完 成消息, 获知所述切换 UE完成切换。
8、 根据权利要求 7所述的方法, 其特征在于, 所述接收所述代理 UE转发 的所述切换 UE根据所述 C-RNTI完成切换的切换完成消息之后, 还包括:
向移动性管理实体 MME发送路径转换请求;
接收所述 MME根据所述路径转换请求对所述代理 UE和所述切换 UE下行 路径进行转换后发送的路径转换确认消息;
向所述 MME发送释放上下文消息, 以便所述 MME向所述 S-eNB发送释 放上下文命令使得所述 S-eNB释放所述代理 UE和所述切换 UE的上下文资源。
9、 一种用户设备组切换设备, 其特征在于, 所述设备包括:
判断切换模块,用于根据所述代理用户设备 UE发送的所述代理 UE的测量 报告和 UE组内的 UE的测量报告, 判断所述代理 UE和 UE组内的每个 UE是 否需要切换; 所述 UE组包括所述代理 UE和所述每个 UE;
切换请求模块, 用于当所述代理 UE和所述 UE组内至少一个 UE需要切换 时, 向目的基站 T-eNB发送切换请求消息; 所述切换请求消息中至少包括所述 代理 UE和所述至少一个需要切换的切换 UE的上下文信息以及所述代理 UE和 所述切换 UE之间的合成关系;
切换确认模块, 用于接收所述 T-eNB发送的切换配置消息并发送给所述代 理 UE; 所述切换配置消息中至少包括所述 T-eNB为所述代理 UE分配的物理随 机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI以及为所述每个需要 切换的切换 UE分配的 C-RNTI;
第一释放模块, 用于接收所述 T-eNB发送的释放上下文消息, 并释放所述 代理 UE和所述切换 UE的上下文资源。
10、 根据权利要求 9所述的设备, 其特征在于, 所述设备还包括: 第一转发模块, 用于当所述代理 UE和所述 UE组内至少一个 UE需要切换 时, 通过移动性管理实体 MME向 T-eNB发送所述切换请求消息; 所述切换请 求消息中至少包括所述代理 UE和所述至少一个需要切换的切换 UE的上下文信 息以及所述代理 UE和所述切换 UE之间的合成关系;
第二转发模块, 用于通过所述 MME接收所述 T-eNB发送的所述切换配置 消息并发送给所述代理 UE;所述切换配置消息中至少包括所述 T-eNB为所述代 理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需要切换的切换 UE分配 的 C-RNTI;
第三转发模块, 用于通过所述 MME接收所述 T-eNB发送的释放上下文消 息, 并释放所述代理 UE和所述切换 UE的上下文资源。
11、 一种用户设备组切换设备, 其特征在于, 所述设备包括:
第一发送模块, 用于向原基站 S-eNB发送自身的测量报告和用户设备 UE 组内的每个 UE的测量报告; 所述 UE组包括所述代理 UE和所述每个 UE; 接收确认模块, 用于接收所述 S-eNB发送切换配置消息; 所述切换配置消 息中至少包括所述 T-eNB为所述代理 UE分配的物理随机接入信道 PRACH资源 和小区无线网络临时标识 C-RNTI 以及为所述每个需要切换的切换 UE分配的 C-RNTI;
发送标识模块,用于向所述每个切换 UE分别发送切换配置消息; 所述切换 配置消息中至少包括所述 T-eNB为所述切换 UE分配的 C-RNTI;
第一接入模块, 用于根据所述 PRACH资源向所述 T-eNB发起随机接入, 与所述 T-eNB建立上行同步连接。
12、 根据权利要求 11所述的设备, 其特征在于, 所述设备还包括: 第一切换完成模块, 用于与所述 T-eNB 建立上行同步连接之后, 向所述 T-eNB发送第一切换完成消息; 分别向所述 UE组内的每个切换 UE发送第二切 换完成消息;
第二切换完成模块,用于接收所述 UE组内的每个切换 UE发送的第三切换 完成消息并转发给所述 T-eNB。
13、 根据权利要求 11所述的设备, 其特征在于, 所述设备还包括: 第二接入模块, 用于根据所述 PRACH资源向所述 T-eNB发起随机接入之 后, 如果根据所述 PRACH资源向所述 T-eNB发起随机接入失败, 则发起重建 同步连接请求; 如果重建同步连接失败, 则向所述 UE组内每个切换 UE发送重 建通知消息, 通知所述 UE组内每个切换 UE各自分别建立同步连接。
14、 一种用户设备组切换设备, 其特征在于, 所述设备包括:
第二发送模块, 用于向代理用户设备 UE发送测量报告, 以便所述代理 UE 将所述测量报告以及代理 UE的测量报告转发给原基站 S-eNB;
接收标识模块,用于接收所述代理 UE发送的切换配置消息; 所述切换配置 消息至少包括目的基站 T-eNB分配的小区无线网络临时标识 C-RNTI;
第三切换完成模块, 用于根据所述 C-RNTI 完成自身切换, 并向所述代理 UE发送第三切换完成消息, 以便由所述代理 UE将所述切换完成消息转发给目 的基站 T-eNB。
15、 一种用户设备组切换设备, 其特征在于, 所述设备包括:
接收切换模块, 用于接收原基站 S-eNB发送的切换请求消息; 所述切换请 求消息中至少包括代理用户设备 UE和至少一个需要切换的切换 UE的上下文信 息以及所述代理 UE和所述切换 UE之间的合成关系;
分配标识模块,用于为所述代理 UE和所述 UE组内的每个需要切换的切换 UE 分配资源; 所述资源至少包括为所述代理 UE 分配的物理随机接入信道 PRACH资源和小区无线网络临时标识 C-RNTI以及为所述每个需要切换的切换 UE分配的 C-RNTI; 向所述 S-eNB发送切换配置消息; 所述切换配置消息中至 少包括为所述代理 UE分配的 PRACH资源和 C-RNTI以及为所述每个需要切换 的切换 UE分配的 C-RNTI; 第三接入模块,用于接收所述代理 UE根据所述 PRACH资源发送的接入请 求, 与所述代理 UE建立上行同步连接;
第四切换完成模块, 用于接收所述代理 UE转发的所述切换 UE根据所述 C-RNTI完成切换的切换完成消息, 获知所述切换 UE完成切换。
16、 根据权利要求 15所述的设备, 其特征在于, 所述设备还包括: 路径转换请求模块, 用于接收所述代理 UE转发的所述切换 UE根据所述
C-RNTI完成切换的切换完成消息之后, 向移动性管理实体 MME发送路径转换 请求;
路径转换确认模块,用于接收所述 MME根据所述路径转换请求对所述代理 UE和所述切换 UE下行路径进行转换后发送的路径转换确认消息;
第二释放模块, 用于向所述 MME发送释放上下文消息, 以便所述 MME向 所述 S-eNB发送释放上下文命令使得所述 S-eNB释放所述代理 UE和所述切换 UE的上下文资源。
17、 一种用户设备组切换系统, 其特征在于, 所述系统包括:
原基站 S-eNB、 代理用户设备 UE、 代理组内的切换 UE、 目的基站 T-eNB; 所述 S-eNB, 用于完成如权利要求 1-2所述的功能;
所述代理 UE, 用于完成如权利要求 3-5所述的功能;
所述代理组内的切换 UE, 用于完成如权利要求 6所述的功能;
目的基站 T-eNB, 用于完成如权利要求 7-8所述的功能。
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