Abstract
The present invention provides a method of notifying switching information and a base station. The method comprises: a source base station switching a user equipment (UE) to a target Pcell of a target base station; and the source base station notifying the target base station of signal quality of the target Pcell. The present invention ensures that the target base station can efficiently select secondary service cells according to the transmitted information, and reduces time delay.
| Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | |||||
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | ||||||
| Not Available | 08/11/2013 | ISLD-201311-001 | ZTE CORPORATION |
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| 5G | 14/10/2019 | ISLD-201910-019 | ZTE CORPORATION |
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| 5G | 09/05/2022 | ISLD-202205-016 | ZTE CORPORATION |
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Specification Information
Specification Information
Technologies
Family Information
| All Granted Patents In Patent Family : | ---- |
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| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||
| CN102421149A | Not Available | 08/11/2013 | ISLD-201311-001 | ZTE CORPORATION |
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Yes | Basis Patent | |||
| CN102421149B | Not Available | 08/11/2013 | ISLD-201311-001 | ZTE CORPORATION |
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Yes | Basis Patent | |||
| EP2621218A1 | Not Available | 08/11/2013 | ISLD-201311-001 | ZTE CORPORATION |
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| Publication No | Technology | Declaration Information | Specification Information | Explicitly Disclosed | Patent Type | Status | National Phase Entries | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Declaration Date | Declaration Reference | Declaring Company | Specification Information | |||||||||
| ----- | ----- | ----- | ----- | ----- |
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Technologies
Mobility and handover
Product
Base Station (eNB/gNB)
Use Cases
Wireless communication
Services
Measurement
Claim
1. A method of notifying switching information, comprising:
a source base station selecting one optimum cell at each frequency to form an optimum cell list and sequencing cells in the optimum cell list in descending order according to a predefined signal quality, wherein the predefined signal quality includes one of reference signal received power (RSRP) and reference signal received quality (RSRQ); and
the source base station notifying a target base station of the optimum cell list.
2. The method according to claim 1, wherein each cell in the optimum cell list meets a predefined condition, and the predefined condition includes: the predefined signal quality of a backup secondary cell (Scell)?(the predefined signal quality of a target Pcell identified by the Source base station?a predefined offset).
3. The method according to claim 2, wherein, if the source base station identifies a plurality of target Pcells, the predefined condition includes: the predefined signal quality of the backup Scell?(the predefined signal quality of a predefined target Pcell?a predefined offset), wherein the predefined target Pcell include one of the following: a target Pcell with an optimum predefined signal quality among the plurality of target Pcells, a target Pcell with a worst predefined signal quality among the plurality of target Pcells, and an arbitrary target Pcell of the plurality of target Pcells.
4. The method according to claim 1, wherein configuration information of the optimum cell list is determined by a protocol, or is determined through a negotiation between the source base station and the target base station, wherein the configuration information includes at least one of the following: predefined offset, predefined signal quality, and a maximum number of cells in the optimum cell list.
5. The method according to claim 4, wherein the step of the source base station negotiating the configuration information with the target base station further includes:
one party of the source base station and the target base station including the configuration information of the one party in a setup request and sends the setup request to the other party of the source base station and the target base station during a setup process of an S1 interface or an X2 interface; and
the other party returning a setup response that includes the configuration information of the other party.
6. The method according to claim 4, wherein the step of the source base station negotiating the configuration information with the target base station further includes:
one party of the source base station and the target base station notifying the configuration information to the other party of the source base station and the target base station through a mobility parameter change request message; and
the other party returning a mobility parameter change response message including information which indicates agreement or not including any information if the other party agrees with the configuration information, or the other party returning a mobility parameter change failure message or a mobility parameter change response message including the configuration information of the other party if the other party disagrees with the configuration information.
7. The method according to claim 1, before the step of the source base station arranging the cells in the optimum cell list according to the predefined signal quality, the method further comprising:
the source base station negotiating with the target base station whether or not to transmit an optimum cell list, or, the source base station determining whether or not to transmit the optimum cell list based on whether or not a UE currently switched supports carrier aggregation or whether or not there is only one working cell of the UE;
proceeding to next step if it determines to transmit the optimum cell list; and
terminating the notification fi it determines not to transmit the optimum cell list.
8. The method according to claim 1, wherein an optimum cell that does not have a measurement result of the predefined signal quality in a frequency is not added into the optimum cell list or is added at the end of the optimum cell list.
9. The method according to claim 2, wherein configuration information of the optimum cell list is determined by a protocol, or is determined through a negotiation between the source base station and the target base station, wherein the configuration information includes at least one of the following: predefined offset, predefined signal quality, and a maximum number of cells in the optimum cell list.
10. The method according to claim 9, wherein the step of the source base station negotiating the configuration information with the target base station further includes:
one party of the source base station and the target base station including the configuration information of the one party in a setup request and sends the setup request to the other party of the source base station and the target base station during a setup process of an S1 interface or an X2 interface; and
the other party returning a setup response that includes the configuration information of the other party.
11. The method according to claim 9, wherein the step of the source base station negotiating the configuration information with the target base station further includes:
one party of the source base station and the target base station notifying the configuration information to the other party of the source base station and the target base station through a mobility parameter change request message; and
the other party returning a mobility parameter change response message including information which indicates agreement or not including any information if the other party agrees with the configuration information, or the other party returning a mobility parameter change failure message or a mobility parameter change response message including the configuration information of the other party if the other party disagrees with the configuration information.
Associated Portfolios
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
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Family member