CN103888963B

CN103888963B - Configuration method, station and user equipment of wireless network temporary identifier

Info

Publication number: CN103888963B
Application number: CN201210562851.6A
Authority: CN
Inventors: 张亮亮; 李亚娟; 蔺波
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-12-21
Filing date: 2012-12-21
Publication date: 2020-01-17
Anticipated expiration: 2032-12-21
Also published as: CN103888963A; WO2014094661A1

Abstract

The invention provides a configuration method, a station and user equipment of a Radio Network Temporary Identifier (RNTI), which comprises the following steps: the first station communicates with first User Equipment (UE) by using a first Radio Network Temporary Identifier (RNTI); the intersection of a first RNTI set maintained or used by a first site and a second RNTI set maintained or used by a second site is an empty set, and the first RNTI belongs to the first RNTI set; and the first station sends first information to the second station, wherein the first information is used for indicating the second station to use the first RNTI to communicate with the first UE. In the embodiment of the invention, under the scene that one UE is communicated with a plurality of sites, the UE is enabled to use different RNTIs to communicate with the plurality of sites by configuring different RNTIs for the UE, so that the problem of RNTI configuration under the condition that one UE is communicated with the plurality of sites is solved.

Description

Configuration method, station and user equipment of wireless network temporary identifier

Technical Field

The present invention relates to the field of communications, and in particular, to a method for configuring a radio network temporary identifier, a station, and a user equipment.

Background

C-RNTI (16-bit long) is an identity assigned by a base station to a UE in a connected state, and the base station uses the C-RNTI to uniquely identify the UE in a cell and simultaneously schedules the terminal in the cell. When a UE establishes connection in one cell, a corresponding base station allocates a C-RNTI for the UE, and when the UE is switched to another cell due to movement or other reasons, the base station of a new cell reallocates the C-RNTI for the UE, namely, the C-RNTI is only valid in the current cell. The range of C-RNTI in each cell is defined in the protocol. Each connected-state UE of each cell has a unique C-RNTI.

With the development of mobile communication systems, the transmission rate and the service quality that can be provided by the communication system are higher and higher, and the user service also puts higher and higher requirements on the transmission rate of the communication system. Third generation partnership project (3)^rdGeneration Partnership Project, 3 GPP) introduced a Carrier Aggregation (CA) technique, so that the transmission rate of User Equipment (UE) is guaranteed without greatly increasing the system bandwidth, and a higher throughput is provided for the UE. Carrier aggregation enables a UE to simultaneously use multiple Component Carriers (CCs)Component Carrier) to perform an up-down communication, thereby supporting a high-speed data transmission. When the requirement of the UE transmission rate is reduced, some member carriers can be released, only one resident carrier is reserved, and the released transmission resources can be used by other UEs, so that the flexible and dynamic purpose is achieved.

Carrier aggregation of a Long Term Evolution (LTE) system may be divided into intra-base station cell aggregation and inter-base station cell aggregation. Cell aggregation in a base station means that a plurality of CCs used by UE simultaneously are controlled by the same base station; only cell aggregation within the base station is supported in the current protocols. Inter-base station cell aggregation means that multiple CCs used by a UE at the same time may be controlled by different base stations. The UE needs to transmit data and signaling through two or more cells and the base station at the same time, and accordingly, two or more C-RNTIs also need to be used, but in the prior art, since the cells participating in aggregation are co-sited, in order to simplify the implementation of the UE, the base station can ensure that the same C-RNTI and the UE are used for transmitting data in the two cells, so that the existing protocol provides that the UE only uses one C-RNTI when the cells inside the base station are aggregated. However, how to configure the C-RNTI for cell aggregation between base stations still remains to be solved.

Besides, the micro base station corresponding to the small cell can provide service for the UE together with the macro base station. At this time, the macro base station is responsible for transmission of control plane signaling, and the micro base station is responsible for transmission of user plane data. Similarly, at this time, one UE may interact with multiple base stations at the same time, and how to configure the C-RNTI in this case is still to be solved.

Disclosure of Invention

The embodiment of the invention provides a method for configuring a radio network temporary identifier, a station and user equipment, which solve the problem of configuration of an RNTI (radio network temporary identifier) under the condition that one UE is communicated with a plurality of stations.

In a first aspect, a method for configuring an RNTI is provided, including: the first station communicates with first User Equipment (UE) by using a first Radio Network Temporary Identifier (RNTI); the intersection of a first RNTI set maintained or used by the first site and a second RNTI set maintained or used by a second site is an empty set, and the first RNTI belongs to the first RNTI set; and the first station sends first information to a second station, wherein the first information is used for indicating the second station to use the first RNTI to communicate with the first UE.

With reference to the first aspect, in an implementation manner of the first aspect, the first station and the second station collectively serve a first UE.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first information includes the first RNTI.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or, the first site is a control plane site of the first UE, and the second site is a user plane site of the first UE; or, the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; or the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the first site and the first UE have control plane connection, and the second site and the first UE have user plane connection; or, the first station is a station of a macro cell of the first UE, and the second station is a station of a small cell of the first UE.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method further includes: the first site sends second information to the second site and/or the first UE, wherein the second information is used for indicating user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the method further includes: the first site sends third information to the second site and/or the first UE, wherein the third information is used for indicating control plane switching of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, before the communicating, by the first station, with the first UE using the first RNTI, the method further includes: the first station receives fourth information sent by a fourth station, wherein the fourth information is used for indicating control plane switching of the first UE; or, SRB handover of the first UE; or, switching a control plane of the first UE from the fourth site to the first site; or, switching transmission of control plane data of the first UE from the fourth station to the first station; or switching transmission of control signaling for the first UE from the fourth station to the first station; or, switching transmission of control signaling and transmission of a portion of user data of the first UE from the fourth station to the first station.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, before the communicating, by the first station, with the first UE using the first RNTI, the method further includes: and the first station allocates the first RNTI for the first UE.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first station and the second station jointly serve the first UE through carrier aggregation; or the frequencies of the carriers used by the first station and the second station for communicating with the first UE are different.

With reference to the first aspect and the foregoing implementation manner of the first aspect, in another implementation manner of the first aspect, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C.

In a second aspect, a method for configuring an RNTI is provided, including: a second station receives first information sent by a first station, wherein the first information is used for indicating the second station to use a first RNTI (radio network temporary identifier) to communicate with first User Equipment (UE); wherein the intersection of a first set of RNTIs maintained or used by the first site and a second set of RNTIs maintained or used by the second site is an empty set, and the first RNTI belongs to the first set of RNTIs.

With reference to the second aspect, in an implementation manner of the second aspect, the first station and the second station collectively serve a first UE.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the first information includes the first RNTI.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the first RNTI includes at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the second aspect and the foregoing implementation manner, in another implementation manner of the second aspect, the first station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or, the first site is a control plane site of the first UE, and the second site is a user plane site of the first UE; or, the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; or the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the first site and the first UE have control plane connection, and the second site and the first UE have user plane connection, or the first site is a site of a macro cell of the first UE, and the second site is a site of a small cell of the first UE.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the method further includes: the second station receives second information sent by the first station, wherein the second information is used for indicating user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the method further includes: the second station receives third information sent by the first station, wherein the third information is used for indicating control plane switching of the first UE; or, SRB handover of the first UE; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the first station and the second station jointly serve the first UE through carrier aggregation; or the frequencies of the carriers used by the first station and the second station for communicating with the first UE are different.

With reference to the second aspect and the foregoing implementation manner of the second aspect, in another implementation manner of the second aspect, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C.

In a third aspect, a method for configuring an RNTI is provided, including: communicating with a first site using an RNTI assigned to a first UE by the first site; and communicating with a second station by using the RNTI.

With reference to the third aspect, in an implementation manner of the third aspect, the communicating with the first station using the RNTI includes: receiving data which is sent by the first station and scrambled by using the RNTI, and/or sending the data which is sent by the first station and scrambled by using the RNTI; the communicating with the second station using the RNTI comprises: and receiving data scrambled by using the RNTI sent by the second station, and/or sending data scrambled by using the RNTI to the second station.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, before the communicating with the second station using the RNTI, the method further includes: and sending fifth information to the second station, wherein the fifth information is used for indicating the second station to use the RNTI to communicate with the first UE.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, the fifth information includes the RNTI.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, before the communicating with the second station using the RNTI, the method further includes: receiving second information sent by the first station, wherein the second information is used for indicating user plane switching of the UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station; or, control plane switching of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, an intersection of a first RNTI set maintained or used by the first site and a second RNTI set maintained or used by the second site is an empty set, and the first RNTI belongs to the first RNTI set.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C.

With reference to the third aspect and the foregoing implementation manner of the third aspect, in another implementation manner of the third aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In a fourth aspect, a method for configuring an RNTI is provided, including: the first station communicates with the UE by using the first RNTI; the first station sends first information to a second station, and the first information is used for indicating the second station to communicate with the UE by using a second RNTI different from the first RNTI.

With reference to the fourth aspect, in an implementation manner of the fourth aspect, the method further includes: and the first station sends second information to the first UE, wherein the second information is used for indicating the UE to use the second RNTI to communicate with the second station.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in another implementation manner of the fourth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the fourth aspect and the foregoing implementation manner of the fourth aspect, in another implementation manner of the fourth aspect, the first information includes the second RNTI.

In a fifth aspect, a method for configuring an RNTI is provided, including: a second station receives first information sent by a first station, wherein the first information is used for indicating the second station to communicate with User Equipment (UE), and the first information comprises a first Radio Network Temporary Identifier (RNTI) used for the first station to communicate with the UE; the second station allocates a second RNTI for the UE, wherein the second RNTI is different from the first RNTI;

with reference to the fifth aspect, in an implementation manner of the fifth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In a sixth aspect, a method for configuring an RNTI is provided, including: communicating with a first station using a first RNTI, wherein the first RNTI is allocated by the first station; communicating with a second station using a second RNTI, wherein the second RNTI is allocated by the second station.

With reference to the sixth aspect, in an implementation manner of the sixth aspect, before the communicating with the second station using the second RNTI, the method further includes: and receiving first information sent by the first station, wherein the first information is used for indicating that the second RNTI is used for communication with the second station.

With reference to the sixth aspect and the foregoing implementation manner of the sixth aspect, in another implementation manner of the sixth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In a seventh aspect, a station is provided, including: a communication unit which communicates with a first user equipment UE using a first RNTI; the intersection of a first RNTI set maintained or used by the site and a second RNTI set maintained or used by a second site is an empty set, and the first RNTI belongs to the first RNTI set; a sending unit, configured to send first information to a second station, where the first information is used to instruct the second station to use the first RNTI to communicate with the first UE.

With reference to the seventh aspect, in an implementation manner of the seventh aspect, the first station and the second station collectively serve a first UE.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the first information includes the first RNTI.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the first RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or the station is a control plane station of the first UE, and the second station is a user plane station of the first UE; or the station is a station corresponding to a primary cell of the first UE, and the second station is a station corresponding to a secondary cell of the first UE; or the cell of the site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the station and the first UE have control plane connection, and the second station and the first UE have user plane connection; or, the first station is a station of a macro cell of the first UE, and the second station is a station of a small cell of the first UE.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the sending unit is further configured to send second information to the second station and/or the first UE, where the second information is used to indicate user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the sending unit is further configured to send third information to the second station and/or the first UE, where the third information is used to indicate a control plane handover of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the method further includes: a receiving unit, configured to receive fourth information sent by a fourth station, where the fourth information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or, switching a control plane of the first UE from the fourth site to the first site; or, switching transmission of control plane data of the first UE from the fourth station to the first station; or switching transmission of control signaling for the first UE from the fourth station to the first station; or, switching transmission of control signaling and transmission of a portion of user data of the first UE from the fourth station to the first station.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the method further includes: an allocating unit, configured to allocate the first RNTI to the first UE.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, the station and the second station jointly serve the first UE through carrier aggregation; or the frequencies of the carriers used by the station and the second station for communicating with the first UE are different.

With reference to the seventh aspect and the foregoing implementation manner of the seventh aspect, in another implementation manner of the seventh aspect, a value range of the first set is from 003D to FFF3, and a value range of the second set is from 0001 to 003C.

In an eighth aspect, there is provided a station comprising: a receiving unit, configured to receive first information sent by a first station, where the first information is used to instruct the station to communicate with the first user equipment UE using a first RNTI; wherein the intersection of a first RNTI set maintained or used by the first site and a second RNTI set maintained or used by the site is an empty set, and the first RNTI belongs to the first RNTI set; a communication unit configured to communicate with the first UE using the first RNTI.

With reference to the eighth aspect, in one implementation manner of the eighth aspect, the first station and the station collectively serve a first UE.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the first information includes the first RNTI.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the first RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the first station performs transmission of a control signaling with the first UE, and the second station performs transmission of user data with the first UE; or, the first site is a control plane site of the first UE, and the second site is a user plane site of the first UE; or, the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; or the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the first site and the first UE have control plane connection, and the second site and the first UE have user plane connection; or, the first station is a station of a macro cell of the first UE, and the station is a station of a small cell of the first UE.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the method further includes: a sending unit, configured to receive second information sent by the first station, where the second information is used to indicate user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the receiving unit is further configured to receive third information sent by the first station, where the third information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the first station and the station jointly serve the first UE through carrier aggregation; or the frequencies of the carriers used by the first station, the station and the first UE for communication are different.

With reference to the eighth aspect and the foregoing implementation manner of the eighth aspect, in another implementation manner of the eighth aspect, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C.

In a ninth aspect, there is provided a user equipment comprising: a first communication unit, configured to communicate with a first station using an RNTI, where the RNTI is allocated to a first UE by the first station; and the second communication unit is used for communicating with the second station by using the RNTI.

With reference to the ninth aspect, in an implementation manner of the ninth aspect, the first communication unit is specifically configured to receive data scrambled with the RNTI sent by the first station, and/or send data scrambled with the RNTI to the first station;

the second communication unit is specifically configured to receive data scrambled by using the RNTI sent by the second station, and/or send data scrambled by using the RNTI to the second station.

With reference to the ninth aspect and the foregoing implementation manner of the ninth aspect, in another implementation manner of the ninth aspect, the first communication unit is further configured to send fifth information to the second station, where the fifth information is used to instruct the second station to use the RNTI to communicate with the first UE.

With reference to the ninth aspect and the foregoing implementation manner of the ninth aspect, in another implementation manner of the ninth aspect, the fifth information includes the RNTI.

With reference to the ninth aspect and the foregoing implementation manner of the ninth aspect, in another implementation manner of the ninth aspect, the first communication unit is further configured to receive second information sent by the first station, where the second information is used to indicate user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station; or, control plane switching of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

With reference to the ninth aspect and the foregoing implementation manner, in another implementation manner of the ninth aspect, an intersection of a first RNTI set maintained or used by the first site and a second RNTI set maintained or used by the second site is an empty set, and the first RNTI belongs to the first RNTI set.

With reference to the ninth aspect and the foregoing implementation manner of the ninth aspect, in another implementation manner of the ninth aspect, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C.

With reference to the ninth aspect and the foregoing implementation manner of the ninth aspect, in another implementation manner of the ninth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In a tenth aspect, there is provided a station comprising: a communication unit configured to communicate with a user equipment UE using a first RNTI; a sending unit, configured to send first information to a second station, where the first information is used to instruct the second station to communicate with the UE using a second RNTI different from the first RNTI.

With reference to the tenth aspect, in an implementation manner of the tenth aspect, the sending unit is further configured to send second information to the first UE, where the second information is used to instruct the UE to use the second RNTI to communicate with the second station.

With reference to the tenth aspect and the foregoing implementation manner of the tenth aspect, in another implementation manner of the tenth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

With reference to the tenth aspect and the foregoing implementation manner of the tenth aspect, in another implementation manner of the tenth aspect, the first information includes the second RNTI.

In an eleventh aspect, there is provided a station comprising: a receiving unit, configured to receive first information sent by the first station, where the first information is used to instruct the station to communicate with a User Equipment (UE), and the first information includes a first Radio Network Temporary Identifier (RNTI) used by the first station to communicate with the UE; and the allocation unit is used for allocating a second RNTI for the UE, wherein the second RNTI is different from the first RNTI.

With reference to the eleventh aspect, in an implementation manner of the eleventh aspect, the RNTI includes at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In a twelfth aspect, a user equipment is provided, including: a first communication unit, configured to communicate with a first station using a first RNTI, where the first RNTI is allocated by the first station; and a second communication unit, configured to communicate with a second station using a second RNTI, where the second RNTI is allocated by the second station.

With reference to the twelfth aspect, in an implementation manner of the twelfth aspect, the first communication unit is specifically configured to receive first information sent by the first station, where the first information is used to instruct to use the second RNTI to communicate with the second station.

With reference to the twelfth aspect and the foregoing implementation manner of the twelfth aspect, in another implementation manner of the twelfth aspect, the RNTI includes at least one of the following: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

In the embodiment of the invention, under the scene that one UE is communicated with a plurality of sites, the UE is enabled to use different RNTIs to communicate with the plurality of sites by configuring different RNTIs for the UE, so that the problem of RNTI configuration under the condition that one UE is communicated with the plurality of sites is solved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1a is a diagram of a scenario in accordance with an embodiment of the present invention.

FIG. 1b is another scenario diagram of an embodiment of the present invention.

Fig. 2 is a flowchart of an RNTI configuration method according to an embodiment of the present invention.

Fig. 3 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 4 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 5 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 6 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 7 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 8 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 9 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 10 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 11 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 12 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 13 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention.

Fig. 14 is a block diagram of a station of one embodiment of the invention.

Fig. 15 is a block diagram of a station of another embodiment of the present invention.

Fig. 16 is a block diagram of a user equipment of another embodiment of the present invention.

Fig. 17 is a block diagram of a station of another embodiment of the present invention.

Fig. 18 is a block diagram of a station of another embodiment of the present invention.

Fig. 19 is a block diagram of a user equipment of another 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 obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, shall fall within the scope of protection of the present invention.

It should be understood that the solution of the present invention can be applied to various communication systems, such as: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (LTE) System, an Advanced Long Term Evolution (LTE-a) System, a Universal Mobile Telecommunications System (UMTS), and the like.

It should also be understood that, in the embodiment of the present invention, the User Equipment (UE) includes, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a handset (handset), a portable device (portable Equipment), and the like, and the User Equipment may communicate with one or more core networks via a Radio Access Network (RAN), for example, the User Equipment may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the User Equipment may also be a portable, pocket, handheld, built-in computer, or vehicle-mounted Mobile device.

It should be noted that the UE in this patent document may have a function of separating a control plane and a user plane. That is, the station providing the control plane service for the UE is the first station, and the station providing the user plane service for the UE is the second station. The two base stations simultaneously provide service for the terminal. For example, the first site may be a macro base station eNB and the second site may be a micro base station Pico. The cell 1 of the first site serving the terminal may be referred to as the primary cell and the cell 2 of the second site serving the terminal may be referred to as the secondary cell. The UE may also have the capability of cell aggregation between base stations. That is, cell 1 of the first site uses frequency f1 and cell 2 of the second site uses frequency 2 to simultaneously serve the UE. For example, a cell 1 serving a UE at a first site may be referred to as a primary cell, and a cell 2 serving a terminal at a second site may be referred to as a secondary cell. The first station may be a macro base station and the second station may be a micro base station. Of course, the UE may be a conventional terminal, for example, the UE is connected to only one station and communicates with one station, for example, an LTE R8 terminal, an LTE R10 terminal, etc.

In all embodiments of the present invention, the number of any type of site is flexible, for example, there may be one or more first sites and one or more second sites.

In all embodiments of the present invention, the communication between any station and the UE through an RNTI may be: signals, such as data, scrambled by the RNTI are interacted between the station and the UE. For example, the station may scramble data using the RNTI to obtain scrambled data, and transmit the scrambled data to the UE. The UE may also scramble data using the RNTI to obtain scrambled data, and send the scrambled data to the station.

FIG. 1a is a scene diagram of one embodiment of the invention. In the scenario of fig. 1a, the UE communicates with both the macro base station and the micro base station. In this scenario, the UE may perform carrier aggregation with the macro base station and the micro base station, and may also perform small cell enhancement with the macro base station and the micro base station, that is, the macro base station is responsible for transmission of UE control plane data, and the micro base station is responsible for transmission of UE user plane data, where the macro base station is a serving station of the UE.

It should be noted that, a serving site in this patent document may be a macro base station, or may be a site where a main cell of the UE is located, or may be a site that provides control plane transmission for the UE, or a site that provides control plane service for the UE, or may provide control plane service for the UE having a function of separating a control plane from a user plane, or may be a transmission site that sends a control signaling for the UE, or a site corresponding to the macro base station or the macro cell; or, a site corresponding to a primary cell (primary cell); or, the UE serves a site corresponding to the cell; a station providing Signaling Radio Bearer (SRB) transmission for a UE. Optionally, the serving station may also be responsible for transmission of a partial Data Radio Bearer (DRB). The serving station of this patent document may also be a UE that communicates with the first station, or a UE that has a connection with the first station. For the definition of the first site, please see the definition of the first site in the following summary. Of course, the service site of this patent document may also be a site that provides a service for a terminal in the conventional sense, and is not limited in the present invention.

In addition, a cell of a serving site of the UE serves the UE, where the cell is a serving cell of the UE, and the serving cell of the UE may be a cell that provides services for a terminal (e.g., a cell that provides services for a legacy terminal), may also be a cell of a site that provides a control plane service for the UE, or a cell of a site that provides a control plane service for the UE having a control plane and user plane separation function, or a primary cell of the UE, or a cell of a first site to which the UE is connected. The cell or the primary cell may specifically be a cell that sends a control signaling to the UE; or, a cell corresponding to a transmission point for sending a control signaling for the UE; or, a cell corresponding to the macro base station; or, a cell providing SRB transmission for the UE; or, the Primary Cell (the Primary Cell-PCell) may specifically be a Cell in which an RRC connection of the UE is located, and the Primary Cell may specifically be a Cell that provides non-access stratum NAS mobility information (e.g., TAI) for the UE in a Radio Resource Control (RRC) connection establishment or re-establishment or handover process, and/or a Cell that provides security input for the UE in an RRC connection establishment or handover process. (At RRC connection estimate/re-estimate/handover, one serving Cell services the NAS mobility information (e.g. TAI), and/or At RRC connection re-estimate/handover, one serving Cell services the security input, this Cell handover to the Primary Cell (PCell)), which is not limited in the embodiments of the present invention.

It should be further noted that the interaction between the base station and the UE in this patent document can be considered as the interaction between the cell of the base station and the UE; the interaction between a base station and a base station may be considered as an interaction between cells of the base station.

Further, the RNTI of the UE is assigned by the first station as long as the UE communicates with the first station, or the first station is the serving station for the UE as long as the UE has a connection with the first station. For example, the UE1 communicates with a macro base station, a micro base station Pico1 and a micro base station Pico2, the macro base station is a serving station of the UE1 and is also a first station of the UE1 (detailed definitions will be given to the first station in the following embodiments of the patent document), and the micro base station 1 and the micro base station 2 are second stations belonging to the UE 2. Then the RNTI for UE1 is assigned by the macro base station or the first station, which selects one RNTI from the first set to be assigned to UE1, since the macro base station/first station is the serving station for UE 1. And the C-RNTI of the UE is assigned by the serving site/cell of the UE as long as it is not the UE communicating with or having a connection with the first site. The serving site/cell may be a serving site or a serving cell in the prior art, such as a serving site or a serving cell of a terminal of LTE R8.

In the present invention, the UE is mostly connected to a first station (Macro eNB for example) and a second station (Pico for example). Of course, the UE may be simultaneously connected to multiple base stations or the UE may operate in multiple cells, which may belong to multiple different base stations. The embodiment of the present invention is not limited thereto. For example, the UE1 connects to 4 stations, which are a first base station (for example, Macro eNB), a second base station (for example, Pico 1), a third base station (for example, Pico 2), and a fourth base station (for example, Pico 3). The macro base station provides control plane services for UE1 is the first site for UE1, and the 3 micro base stations provide user plane services for UE1 is the second site for UE 1. Then the first base station is a serving site of the macro base station for the UE1 and is also a first site of the UE1, the first base station allocates the RNTI1 to the UE1, and the RNTI1 is used by the UE1 when communicating with the second base station, the third base station, and the fourth base station. RNTI1 belongs to the RNTIs in the first set. For a UE (e.g., UE 2) with a second base station, or a third base station, or a fourth base station as serving sites, the RNTIs of the UE are all allocated by the respective serving sites. The second base station, the third base station, or the fourth base station may select RNTIs from the second set to allocate to respective serving UEs (e.g., UE2 is a serving UE of the second base station, UE3 is a serving UE of the third base station, and UE4 is a serving UE of the fourth base station). For example, RNTI2, RNTI3 and RNTI4 allocated to UE2, UE3 and UE4 belong to the second set, and RNTI2, RNTI3 and RNTI4 may be the same or different. The UE2, UE3, and UE4 may be conventional UEs, such as UEs of LTE R8, e.g., UEs that do not support separation of control plane and user plane, e.g., UEs that do not support simultaneous connection of multiple base stations, and so on. Please refer to the description of the figure.

In the scenario of fig. 1a, the UE may use the same RNTI to communicate with the macro base station and the micro base station simultaneously, or may use different RNTIs to communicate with the macro base station and the micro base station.

FIG. 1b is another scenario diagram of an embodiment of the present invention.

The first UE may be the UE1 or the UE2 described above.

The UE1 connects the macro base station and the micro base station 1. Wherein the macro base station is a first site and provides control plane services for the UE1, and the micro base station 1 is a second site and provides user plane services for the UE 1. Alternatively, the macro base station is the first site and the frequency of the serving carrier for UE1 is f1, the micro base station is the second site and the frequency of the serving carrier for UE1 is f 2.

The UE2 is connected to the macro base station, the micro base station 2 and the micro base station 3. The macro base station is a first site and provides control plane service for the UE1, and the micro base stations 2 and 3 provide user plane service for the second site and the UE 2.

The UE3 is a UE in conventional communication whose serving site is a macro base station. In summary, the serving sites for UE1, UE2, and UE3 are macro base stations.

The first station may be a macro base station and the second station may be a micro base station 1, 2, 3. There is one UE8 under the micro base station 1, UE4 and UE5 under the micro base station 2, and UE6 and UE7 under the micro base station 23. That is, the serving site of UE8 is micro base station 1, the serving sites of UE4 and UE5 are micro base station 2, and the serving sites of UE6 and UE7 are micro base station 3. UE4-UE8 may be a legacy terminal and is not limited herein.

RNTIs of terminals under the first site are all allocated by the first site, and the RNTI range of the first site is RNTI in the first set. Therefore, the RNTIs of UE1, UE2 and UE3 are allocated by the first station, the RNTIs all belong to the first set, and since UE1, UE2 and UE3 are in the same cell, the RNTIs are different. For example, RNTIs thereof are C-RNTI1, C-RNTI2, C-RNTI3 (taking C-RNTI as an example), C-RNTI1, C-RNTI2 and C-RNTI3 belong to the first set. Wherein the UE1 communicates with the macro base station and the micro base station 1 using C-RNTI1, and the UE2 communicates with the macro base station, the micro base station 2, and the micro base station 3 using C-RNTI 2.

RNTIs of the terminals under the second site are all distributed by the second site, and the RNTI range of the second site is the RNTI in the second set. Thus, the RNTI (e.g., C-RNTI 8) of the UE8 is allocated by the micro base station 1; the RNTIs of UE4, UE5 are allocated by micro base station 2, where two RNTIs are different (e.g. C-RNTI4, C-RNTI 5), UE6, UE7 are allocated by micro base station 3, where two RNTIs are different (e.g. C-RNTI6, C-RNTI 7) and two RNTIs are different (e.g. C-RNTI4, C-RNTI 5). C-RNTI4, C-RNTI5, C-RNTI6, C-RNTI7, C-RNTI8 belong to the second set. The C-RNTI4 may be the same as the C-RNTI6/7/8, as may the RNTI within different micro base stations.

The intersection of the first set and the second set is an empty set, i.e. the RNTIs of the two sets are not identical and do not repeat.

Therefore, the traditional UE is not influenced and can still obtain base station service in the range of the base station, and a terminal connected with a plurality of base stations, such as the UE1, can continuously move in the coverage range of the macro base station while keeping communication with the macro base station, and can be changed from communication with the micro base station 1 to communication with the micro base station 2 and then to the micro base station 3. The RNTI of the UE1 (e.g., C-RNTI is always maintained as C-RNTI 1) is always unchanged during movement, reducing interaction between base stations, and also interaction between base stations and terminals. The signaling flow is greatly saved.

Fig. 2 is a flowchart of an RNTI configuration method according to an embodiment of the present invention. The method is performed by a first UE, e.g. a UE in the scenario of fig. 1.

201. The first station communicates with first User Equipment (UE) by using a first Radio Network Temporary Identifier (RNTI); the intersection of a first RNTI set maintained or used by the first site and a second RNTI set maintained or used by the second site is an empty set, and the first RNTI belongs to the first RNTI set.

202. The first station sends first information to the second station, wherein the first information is used for indicating the second station to communicate with the first UE by using the first RNTI.

In the embodiment of the invention, under the scene that one UE is communicated with a plurality of sites, the same RNTI is configured for the UE, so that the UE can use the same RNTI to communicate with the plurality of sites, and the problem of the configuration of the RNTI under the condition that one UE is communicated with the plurality of sites is solved.

Optionally, as an embodiment, the RNTI in this patent document may be a combination of one or more of the following:

cell Radio Network Temporary identity (C-RNTI): and the identifier is used for uniquely identifying a connected terminal in a cell and scheduling the terminal by using the identifier. Specific scheduling can be that downlink data is sent to the terminal, uplink resources are allocated to the terminal to send uplink data, various control signals are transmitted to the terminal for the terminal, and the like. The invention does not limit the use of the C-RNTI;

Semi-Persistent Scheduling cell radio network temporary identity (Semi-Persistent Scheduling C-RNTI): the method is used for uniquely identifying a semi-persistent scheduling terminal (unique identification used for semi-persistent scheduling) in a cell;

-Temporary cell radio network Temporary identity (Temporary C-RNTI): in a cell, for identifying a terminal (used for the random access procedure) in a random access procedure;

transmitter power control Physical Uplink control Channel radio network temporary identity (Transmitter power control Physical Uplink Shared Channel RNTI, TPC-PUSCH-RNTI): a PUSCH power control (identification used for the power control of PUSCH) for identifying a terminal in one cell, wherein the PUSCH is a Physical Uplink Shared CHannel (Physical Uplink Shared CHannel);

transmitter power Control Physical Uplink shared Channel radio network temporary identity (Transmitter power Control Physical Uplink Control Channel RNTI, TPC-PUCCH-RNTI): a PUCCH power Control (identification used for the power Control of the PUCCH) for identifying a terminal in a cell, wherein the PUCCH is a Physical Uplink Control CHannel (Physical Uplink Control CHannel);

optionally, as another embodiment, the first station and the second station may collectively serve the first UE.

Optionally, as another embodiment, in this embodiment of the present invention, the first station may use the RNTI in the first set to communicate with the UE that uses the first station as a serving station, the second station may use the RNTI in the second set to communicate with the UE that uses the second station as a serving station, and an intersection of the first set and the second set is an empty set. The embodiment of the invention further avoids the possible problem of RNTI conflict distributed by the station to the same UE by distributing different value sets of RNTI for different stations.

The embodiment of the present invention does not limit the specific forms of the first set and the second set. Optionally, the first set may range from 003D to FFF3, and the second set may range from 0001 to 003C; or the value range of the first set can be the first N bits of 16-bit RNTI, the 16-N bits of the RNTI are 0, the value range of the second set can be the 16-N bits, and the first N bits are 0. In short, the value range of the RNTI is divided into two parts, one part is used for the UE of the first site (or the UE using the first site as the serving site and the terminal using the cell of the first site as the main cell), and the other part is used for the UE of the second site.

It should be understood that, for simplicity, the embodiment of the present invention uses the second site and the second set, but the embodiment of the present invention is not limited thereto, and the second site may be a set of multiple sites, and the second set may also be a collective term for multiple sets. For example, the range of the RNTI may be divided into M parts (a natural number that M is 2 or more) and M =2 parts, where one part is used for the UE of the first station (or the UE of the first station serving as the terminal of the cell of the first station serving as the main cell) and the other part is used for the UE of the second station. Of course, a part of the value range of the RNTI may be used for the UE of the first site (or the UE using the first site as the serving site and the terminal using the cell of the first site as the main cell), and a part of the value range of the RNTI may be used for the UE of the second site. The portion of the first site that is used is called the first set, and the portion of the second site that is used is called the second set. The two sets do not intersect.

For example, the values of the set can be shown in the following table:

table 1 method for dividing first set and second set example 1

Or else as follows:

table 2 example 2 method for dividing first set and second set

It should be noted that, in the embodiment of the present invention, a specific form in which the first information in 102 indicates that the second station uses the first RNTI to communicate with the first UE is not limited. Optionally, a direct indication manner may be adopted, and the first information may be carried in an indication signaling, where the indication signaling indicates that the second station uses the first RNTI to communicate with the first UE; or an indirect indication manner may be adopted, for example, the first information includes the first RNTI, and the second station receives the first RNTI, which indicates that the first station instructs the second station to communicate with the first UE by using the first RNTI. It should be noted that, the specific scenario in which the first UE communicates with the first site and the second site is not limited in the embodiment of the present invention, and may be, for example, a carrier aggregation scenario, that is, the first site and the second site transmit control plane data and user plane data with the first UE by using different frequencies; the method can also be a small cell enhanced scenario in the heterogeneous network, that is, the first station is responsible for transmission of control plane data, and the second station is responsible for transmission of user plane data; a combination of the above-described carrier aggregation scenario and small cell enhanced scenario is also possible.

It should be noted that, in the embodiment of the present invention, specific contents of the communication between the first station and the first UE and the communication between the second station and the first UE are not limited.

Optionally, as an embodiment, the first station may perform transmission of control signaling with the first UE, and the second station may perform transmission of user data with the first UE; alternatively, the first station may be a control plane station of the first UE, and the second station may be a user plane station of the first UE; or, the first site may be a site corresponding to a primary cell of the first UE, and the second site may be a site corresponding to a secondary cell of the first UE; or, the cell of the first site may be a primary cell of the first UE, and the cell of the second site may be a secondary cell of the first UE; alternatively, the first station may have a control plane connection with the first UE, and the second station may have a user plane connection with the first UE; or, the first station is a station of a macro cell of the first UE, and the second station is a station of a small cell of the first UE.

The control plane data may be control signaling, and the control signaling may include at least one of: information on a hybrid automatic repeat request indicator channel, information on a control information format indicator channel, information on a control channel, system messages, physical layer signaling, Media Access Control (MAC) layer messages, Radio Resource Control (RRC) layer messages, SRBs (signal radio bearers (s)), or information corresponding to the SRBs. The SRBs may be specifically SRB0, SRB1, or SRB 2. SRB is used to transport RRC and NAS messages only, SRB0 is used to transport RRC messages, transported on the logical channel CCCH; the SRB1 is used to transport RRC messages (perhaps including piggybacked NAS messages) on the logical channel DCCH. SRB2 is used to transport NAS messages, has lower priority than SRB1, and always configures SRB2 after security mode activation. Transmitted on a logical channel DCCH.

The user plane data may include at least one of: data of the UE, DRBs (data radio bearings), SRB2 and DRBs, information transmitted by the station on a Physical Downlink Shared Channel (PDSCH), and information transmitted by the UE on a Physical Uplink Shared Channel (PUSCH).

Optionally, with respect to the definition of the first station, the first station may be a macro station, a home station, a station providing a control plane service for the UE, or a station providing a control plane service for the UE having a control plane and user plane separation function; the first station can also be a transmission station for sending control signaling for the UE; or, a macro site or a site corresponding to a macro cell; or, a site corresponding to a primary cell (primary cell); or, the user equipment serves a site corresponding to the cell; and providing a station for Signaling Radio Bearer (SRB) transmission for the user equipment. Optionally, the first station may also be responsible for transmission of a partial Data Radio Bearer (DRB).

Alternatively, the cell of the first site may be a cell of a macro site, a cell of a home site, a cell of a site providing a control plane service for a terminal, or a cell of a site providing a control plane service for a terminal having a control plane and user plane separation function. The cell of the first site may also be the primary cell of the terminal. The cell or the primary cell may specifically be a cell for sending a control signaling to the user equipment; or, a cell corresponding to a transmission point for sending a control signaling for the user equipment; or, a cell corresponding to the macro site; or, a cell providing SRB transmission for the user equipment; or, the primary cell may specifically provide the cell of the NAS mobility information of the non-access stratum for the ue in a Radio Resource Control (RRC) connection establishment or re-establishment or handover process, or provide the cell of the security input for the ue in the RRC connection establishment or handover process. (At RRC connection analysis/re-analysis/handover, one serving Cell services the NAS mobility information (e.g. TAI), and area RRC connection re-analysis/handover, one serving Cell services the security information

The control signaling may include at least one of: information on a hybrid automatic repeat request indicator channel, information on a control information format indicator channel, information on a control channel, system messages, physical layer signaling, Medium Access Control (MAC) layer messages, Radio Resource Control (RRC) layer messages, and information corresponding to SRBs.

Alternatively, the second station may be a micro base station, a Secondary station (Secondary transmission point), a communication node with a scheduling function, a wireless communication node with a scheduling function, a station providing a user plane service for a terminal, or a station providing a user plane service for a terminal with a control plane and user plane separation function, and so on.

Optionally, the second site may also be: a site where a Secondary cell (Secondary cell) is located; or, a station corresponding to a Secondary cell (Secondary cell); or, a station providing data transmission for the user terminal; a station providing DRB transmission for the user terminal; a site providing SRB2 and DRBs transmission for the user terminal; or, a station transmitting information on a Physical Downlink Shared Channel (PDSCH).

Alternatively, the cell of the second station may be a cell of the station, that is, a cell of the micro base station, a cell of the secondary station, a cell of a station providing a user plane service for the terminal, or a cell of a station providing a user plane service for the terminal having a control plane and user plane separation function.

The cell of the second site may also be a cell providing data transmission for the user terminal; or, a cell providing DRB transmission for the user terminal; or, a cell transmitting PDSCH for user equipment.

For example, the first station may be responsible for transmission of SRBs; the second station is responsible for the transmission of DRBs; or the first station is responsible for the transmission of the SRB0 and the SRB1, and the second station is responsible for the transmission of the SRB2 and the DRBs; it is also possible that the first station is responsible for transmission of SRBs 0 and SRBs 1 and also for transmission of partial DRBs, and the second station is responsible for transmission of SRBs 2 and partial DRBs; it is also possible that the first station is responsible for transmission of SRBs and also for transmission of part of DRBs, and that the second station is responsible for transmission of part of DRBs.

It should be noted that, in all embodiments of the present invention, the types of all stations, such as the first station and the second station, are not limited, for example, the first station and the second station may specifically be base stations (the base stations, specifically, both the first station and the second station may be one of Macro eNB (Macro base station), Micro eNB (Pico base station), Pico eNB (Micro base station), HeNB (home base station), Small cell nb (Small cell base station), and relay station), or may also be nodes having a scheduling function. The first station or the second station may also be called a wireless communication node or a wireless communication station. The above definitions of the first site, the second site, the cell of the first site, and the cell of the second site are applicable to all the contents of the present invention.

It should be noted that the serving station in this patent document may be the first station as long as the UE communicates with the first station or as long as the UE has a connection with the first station. For example, if the UE connects to a macro base station and a small cell (small cell) site, and it is possible that the small cell site is also providing some services of the control plane for the terminal, then the RNTI of the UE is also allocated by the macro base station.

Or, the serving site of this patent document may also be that a base station where a primary cell of the UE is located is the serving site of the UE, or that the serving site allocates the RNTI to the UE.

In the embodiment of the present invention, before the first station transmits 102 the first information, the communication method between the UE and the station is not limited.

Optionally, as an embodiment, the first station is responsible for transmission of user plane data and control plane data of the first UE. In this case, the first station may further send, to the second station, second information indicating that transmission of user plane data of the first UE is to be switched from the first station to the second station. It should be noted that the second information and the first information in step 102 may be carried in one message to be sent, or may be sent separately.

Optionally, as another embodiment, the method of fig. 1 may further include the first station sending second information to the second station and/or the first UE, where the second information is used to indicate user plane switching of the first UE; or, DRB handover of the first UE; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first/third station to the second station; or, the transmission of user data of the first UE is switched from the first/third station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or adding a cell for user data transmission of the first UE to the first UE, wherein the cell is a cell of the second site.

Optionally, as another embodiment, the method of fig. 1 may further include: the first site sends third information to the second site and/or the first UE, wherein the third information is used for indicating the control plane switching of the first UE; or, SRB handover of the first UE; or the control plane of the first UE is switched from the first site to the second site; or, the transmission of the control plane data of the first UE is switched from the first site to the second site; or, the transmission of the control signaling of the first UE is switched from the first site to the second site; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is handed over from the first site to the second site.

For example, the user plane switching, where the message is sent to the target user plane site, specifically includes: the indication information =1, and the station identifier/cell identifier of the control panel station of the UE after the handover;

control plane switching and user plane switching to different sites/cells, and sending messages to target user plane sites: as above. And may also contain an identification of the source user plane site.

Control plane switching, sending a message to a target control plane site, specifically comprising: the indication information =0, and the station identifier/cell identifier of the user plane station of the terminal after the switching;

control plane switching and user plane switching to different sites/cells, and sending messages to a target control plane site: as above. And may also contain an identification of the source control plane site.

The control plane and the user plane are switched to the same site: in line with the prior art, there is no indication information.

Specifically, for the embodiment of the present invention, the second station sends a message to the first station to request to switch the user plane of the UE from the third station to the first station. Specifically, the indication information =1 may be included, and the station identity cell identity of the control plane station of the terminal after the handover. Configuration information of the UE may also be included.

Optionally, as another embodiment, the first station is responsible for transmission of the first UE control plane data, and the third station is responsible for transmission of the first UE user plane data. In this case, the first station may further send, to the second station, second information indicating that transmission of the user plane data of the first UE is to be switched from the third station to the second station. It should be noted that the second information and the first information in step 102 may be carried in one message to be sent, or may be sent separately. Optionally, as another embodiment, the fourth station is responsible for transmission of control plane data and transmission of control plane data of the first UE. In this case, before the first station communicates with the first UE using the first RNTI, the method may further include: and the first station receives fourth information sent by the fourth station, wherein the fourth information is used for indicating that the control plane data of the first UE is switched from the fourth station to the first station. Optionally, after the first station receives the fourth information, the first RNTI may be allocated to the first UE.

Optionally, as another embodiment, the fourth station is responsible for transmission of the control plane data of the first UE, and the fifth station is responsible for transmission of the data plane data of the first UE. In this case, before the first station communicates with the first UE using the first RNTI, the method may further include: the first station receives fourth information sent by a fourth station, wherein the fourth information is used for indicating the control plane switching of the first UE; or, SRB handover of the UE; or switching the control plane of the first UE from the fourth site to the first site; or, switching transmission of control plane data of the first UE from the fourth station to the first station; or, switching transmission of control signaling of the first UE from the fourth station to the first station; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is switched from the fourth station to the first station.

Optionally, as another embodiment, part of the user data/DRBs/user plane bearers of the terminal may also be handed over from the one site to the other site. For example, the transmission of control signaling and the transmission of part of the user data of the terminal is handed over from the first site to the second site.

The fourth information may include: and indicating information, wherein the indication is control plane switching, or user plane switching, control plane switching and user plane switching to different sites/cells, or control plane and user plane switching to one cell. For example, 1 bit indicates information, if there is the bit information, and the bit =1 indicates user plane switching, and the bit =0 indicates control plane switching; if no bit exists, the control plane and the user plane are switched into one site at the same time as in the prior art. In this embodiment, the fourth information may include user plane switching indication information.

The fourth information may further include at least one of: a site designation/cell identification of a source user plane site of the UE; or an identity/cell identity of a source control plane site of the UE; a station identity/cell identity of a target subscriber station of the UE. The station identity/cell identity of the target control station of the UE.

Optionally, as another embodiment, the first station may further send, to the second station, indication information, where the indication information is used to indicate that transmission of the user plane data of the first UE is switched from the second station to the first station.

Optionally, as another embodiment, the first station may further send third information to the first UE, where the third information is used to instruct to switch transmission of user plane data of the first UE from the first station to the second station; or, instructing to switch transmission of user plane data of the first UE from the third station to the second station; or, instructing to switch transmission of user plane data of the first UE from the second station to the first station; or, the method is used for instructing to add a cell for transmitting user plane data of the first UE to the first UE, where the cell is a cell of the second site.

It should be understood that the control plane handover, which may be an SRB handover or a control plane bearer handover, may be a control plane handover or an SRB handover or a control plane bearer handover performed by the UE, or a control plane/SRB/control plane bearer of the UE is handed over from one site to another site, or a control plane data transmission of the UE is handed over from one site to another site, or in any case, a control plane, SRB, a control plane bearer, a control plane data, a control signaling, or the foregoing handover or transmission means may be equivalent. Optionally, on the basis of the above, partial user data/DRBs/user plane bearer of the terminal may also be handed over from the one site to the other site. For example, the transmission of control signaling and the transmission of part of the user data for the UE is handed over from the first site to the second site.

It should be understood that the user plane handover may be DRB handover or user plane bearer handover, and the UE performs the user plane handover or DRB handover or user plane bearer handover. The user plane/DRB/user plane bearer switching of the UE may be switched from one site to another site, or terminal user plane data/user data transmission is switched from a first site to a second site, or a user plane of the first UE is established on the second site, or a bearer/DRB/user plane bearer of the first UE is established on the second site, or a cell is added for transmission to the UE, where the cell is a cell of the second site.

In general, the user plane, DRB, user plane bearer, user plane data, user data, handover or transmission as described above means may be equivalent. The control plane switching also includes control plane switching, and the user plane remains unchanged, that is, the user plane of the UE may remain at the original site, or the user plane transmission continues to remain at the original site side. For example, the terminal may be handed over from the third site (e.g., Pico 1) to the target second site (e.g., Pico 2), and the control plane of the UE may remain with the first site (e.g., macro eNB 1)

The configuration method of the RNTI according to the embodiment of the present invention is described in detail from the perspective of the first station above with reference to fig. 2, and the method of determining the precoding matrix indicator according to the embodiment of the present invention is described from the perspective of the second station below with reference to fig. 3.

It should be understood that the interaction between the first site and the second site and the related characteristics, functions, etc. described in the first site correspond to those described in the second site, and for brevity, the description thereof is omitted.

Fig. 3 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. The method of fig. 3 is performed by a second station, which may be, for example, the micro base station of fig. 1.

301. A second station receives first information sent by a first station, wherein the first information is used for indicating the second station to use a first RNTI (radio network temporary identifier) to communicate with first User Equipment (UE); wherein the intersection of a first set of RNTIs maintained or used by the first site and a second set of RNTIs maintained or used by the second site is an empty set, and the first RNTI belongs to the first set of RNTIs.

302. The second station communicates with the first UE using the first RNTI.

Optionally, as an embodiment, the first station and the second station serve the first UE together.

Optionally, as another embodiment, the first information may include the first RNTI.

Optionally, as another embodiment, the first station may perform transmission of control signaling with the first UE, and the second station may perform transmission of user data with the first UE; alternatively, the first station may be a control plane station of the first UE, and the second station may be a user plane station of the first UE; or, the first site may be a site corresponding to a primary cell of the first UE, and the second site may be a site corresponding to a secondary cell of the first UE; alternatively, the cell of the first site may be a primary cell of the first UE, and the cell of the second site may be a secondary cell of the first UE.

Optionally, as another embodiment, the method of fig. 3 may further include: the second station receives second information sent by the first station, wherein the second information is used for indicating that the transmission of the user plane data of the first UE is switched from the first station to the second station; or, instructing to switch transmission of user plane data of the first UE from the third station to the second station; or, to instruct a handover of transmission of user plane data of the first UE from the second site to the first site.

Optionally, as another embodiment, the first station and the second station collectively serve the first UE through carrier aggregation; alternatively, the first station and the second station may use different frequencies of carriers used for communication with the first UE.

Optionally, as another embodiment, the first set may range from 003D to FFF3, and the second set may range from 0001 to 003C; or the value range of the first set can be the first N bits of the 16-bit RNTI, the 16-N bits of the RNTI are 0, the value range of the second set can be the 16-N bits, and the first N bits are 0.

Optionally, as another embodiment, the first RNTI may include at least one of: C-RNTI, Semi-Persistent Scheduling C-RNTI, Temporary C-RNTI, TPC-PUCCH-RNTI and TPC-PUSCH-RNTI.

Fig. 4 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. The method in fig. 4 is performed by a user equipment, and may be, for example, the UE in fig. 1, or the first UE in the methods in fig. 2 and fig. 3.

It should be understood that fig. 2 and 3 describe the interaction between the UE and the station from the station side, and the interaction between the UE and the station on the station side and the related characteristics, functions, etc. correspond to the description of the UE side in fig. 4, and the repeated description is appropriately omitted for the sake of brevity.

401. The RNTI is used by the first station for communication with the first UE, and is assigned by the first station to the first UE.

402. Communicating with the second station using the RNTI.

Optionally, as an embodiment, the communicating with the first station using the RNTI may include: receiving data which is sent by a first station and scrambled by using the RNTI, and/or sending the data which is sent by the first station and scrambled by using the RNTI; communicating with the second station using the RNTI includes: and receiving data scrambled by using the RNTI sent by the second station and/or sending the data scrambled by using the RNTI to the second station.

Optionally, as another embodiment, before communicating with the second station using the RNTI, the method may further include: and sending fifth information to the second station, wherein the fifth information is used for indicating the second station to communicate with the first UE by using the RNTI.

Optionally, as another embodiment, the fifth information includes an RNTI.

Optionally, as another embodiment, before communicating with the second station using the RNTI, the method may further include: receiving second information sent by a first site, wherein the second information is used for indicating user plane switching of first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first site to the second site; or, the transmission of user data of the first UE is switched from the first site to the second site; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or adding a cell for user data transmission of the first UE to the first UE, wherein the cell is a cell of a second site; or, control plane switching of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or the control plane of the first UE is switched from the first site to the second site; or, the transmission of the control plane data of the first UE is switched from the first site to the second site; or, the transmission of the control signaling of the first UE is switched from the first site to the second site; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is handed over from the first site to the second site.

Optionally, the second information may further include time-frequency resource information that the UE sends the fifth information to the second station. The time-frequency resource information may be allocated by the second station. Thereby, when the terminal transmits the fifth information, the second station can accurately know the first UE transmitting the information.

Optionally, as another embodiment, an intersection of a first set of RNTIs maintained or used by the first site and a second set of RNTIs maintained or used by the second site is an empty set, and the first RNTI belongs to the first set of RNTIs. .

Optionally, as another embodiment, the first set has a value ranging from 003D to FFF3, and the second set has a value ranging from 0001 to 003C; or the value range of the first set is the first N bits of the 16-bit RNTI value, the 16-N bits of the RNTI value are 0, the value range of the second set is the 16-N bits of the RNTI value, and the first N bits of the RNTI value are 0.

Optionally, as another embodiment, the RNTI includes at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

Fig. 5 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. The method of fig. 5 is performed by a first station, which may be, for example, the macro base station of fig. 1.

501. The first station communicates with the UE using the first RNTI.

502. And the first station sends first information to the second station, wherein the first information is used for indicating the second station to use a second RNTI (radio network temporary identifier) different from the first RNTI to communicate with the UE.

Optionally, as an embodiment, the first station may send second information to the first UE, where the second information is used to instruct the UE to use the second RNTI to communicate with the second station.

Optionally, as another embodiment, the RNTI may include at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

Optionally, as another embodiment, the first information may include the second RNTI.

Fig. 6 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. The method of fig. 6 is performed by a second station, which may be, for example, the micro base station of fig. 1.

601. The second station receives first information sent by the first station, wherein the first information is used for indicating the second station to communicate with the UE, and the first information comprises a first RNTI (radio network temporary identifier) used by the first station to communicate with the UE.

602. And the second station allocates a second RNTI for the UE, wherein the second RNTI is different from the first RNTI.

Fig. 7 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. The method of fig. 6 is performed by a user equipment, which may be, for example, the UE of fig. 1.

It should be understood that fig. 5 and 6 describe the interaction between the UE and the station from the station side, and the interaction between the UE and the station on the station side and the related characteristics, functions, etc. correspond to the description of the UE side in fig. 7, and the repeated description is appropriately omitted for the sake of brevity.

701. And communicating with the first station by using the first RNTI, wherein the first RNTI is allocated by the first station.

702. And communicating with a second station using a second RNTI, wherein the second RNTI is allocated by the second station.

Optionally, as an embodiment, before communicating with the second station using the second RNTI, the method further includes: and receiving first information sent by the first station, wherein the first information is used for indicating that the second station communicates with the second station by using the second RNTI.

Embodiments of the present invention are described in more detail below with reference to specific examples. It should be noted that the examples of fig. 8 to 13 are only for assisting those skilled in the art in understanding the embodiments of the present invention, and are not intended to limit the embodiments of the present invention to the specific values or the specific scenarios illustrated. It will be apparent to those skilled in the art that various equivalent modifications or variations are possible in light of the examples given in figures 8 to 13, and such modifications or variations are also within the scope of the embodiments of the invention.

Fig. 8 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 8, the UE1 changes from communicating with the macro base station only using C-RNTI1 to communicating with both the macro base station and the micro base station using C-RNTI 1. The macro base station identifies the UE1 and communicates with the UE1 through the identifier, and the macro base station selects the C-RNTI allocated to the UE with the macro base station as a service station from a first set; the C-RNTI allocated by the micro base station for the UE using the micro base station as the serving site may be selected from the second set, and an intersection of the first set and the second set is an empty set, for example, the first set may be 003D-FFF3, and the second set may be 0001 + 003C.

The steps of the macro base station in the method of fig. 8 may be performed by the first station in the methods of fig. 2 and 3, the steps of the micro base station in the method of fig. 8 may be performed by the second station in the methods of fig. 2 and 3, and the steps of the UE1 in the method of fig. 8 may be performed by the UE in the method of fig. 4.

801. The UE1 communicates with a macro base station.

802. After the UE1 detects that the signal quality of a certain cell of the micro base station reaches a predetermined threshold, it sends a measurement report to the macro base station.

803. The macro base station sends a request message to the micro base station requesting the micro base station to serve the UE 1.

When the macro base station determines to add a secondary cell (SCell) to the UE1, the macro base station sends a request message to the micro base station, requesting to use a cell of the micro base station as the secondary cell (SCell) of the UE, where the message may include the C-RNTI1, may also include an SCell ID that needs to be added, and may also include configuration information of the UE 1.

The request may be to request the micro base station and the macro base station to use different carrier frequencies to communicate with the UE1 and to perform data transmission, that is, to perform carrier aggregation; or may request a handoff of some or all of the transmission of user plane data and control plane data of the UE1 to the micro base station. The embodiment of the present invention is not limited thereto.

804. And the micro base station sends a response message to the macro base station, and agrees to the request of the macro base station.

805. The macro base station sends a notification message to the UE1 informing the UE1 that an SCell (secondary cell) has been added for the UE 1.

The message may contain the identity of the target site or the identity of the target cell; or the message may contain indication information about user plane switching/control plane switching and user plane full switching of the terminal. Reference may be made to the description of the first information or the fourth information in the embodiment of fig. 1. Optionally, C-RNTI1 used by the terminal to communicate with the macro base station may also be included.

806. The UE1 accesses the micro base station and communicates with the macro base station and the micro base station using the C-RNTI 1.

In the embodiment of the invention, under the scene that one UE is communicated with a plurality of base stations, the same RNTI is configured for the UE, so that the UE can be communicated with the plurality of base stations by using the same RNTI, and the problem of the configuration of the RNTI under the condition that one UE is communicated with the plurality of base stations is solved.

Fig. 9 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 9, the control plane data for UE1 is maintained at the macro base station, the user plane data for UE1 is handed over from micro base station 1 to micro base station 2, and UE1 communicates with both the macro base station and micro base station 2 using C-RNTI 1. The C-RNTI1 is an identifier distributed by the macro base station for the UE1 when the UE1 accesses the macro base station, and the C-RNTI distributed by the macro base station for the UE taking the macro base station as a service site is selected from the first set; the C-RNTIs allocated by the micro base station 1 and the micro base station 2 to the UE using the micro base station as a serving site may be selected from the second set, and an intersection of the first set and the second set is an empty set. For example, the first set may be 003D-FFF3 and the second set may be 0001-003C.

The steps of the macro base station in the method of fig. 9 may be performed by the first station in the methods of fig. 2 and 3, the steps of the micro base station 2 in the method of fig. 9 may be performed by the second station in the methods of fig. 2 and 3, and the steps of the UE1 in the method of fig. 9 may be performed by the UE in the method of fig. 4.

901a, UE1 communicate control plane data with the macro base station.

901b, and UE1 communicate user plane data with femto base station 1.

902. The macro base station sends a request message to the micro base station 2 requesting handover of user plane data of the UE1 from the micro base station 1 to the micro base station 2 and instructing the micro base station 1 to communicate with the UE1 using the C-RNTI 1.

903. And the micro base station 2 sends a feedback message and receives a request of the macro base station.

904. The macro base station sends an indication message to the UE1 for indicating that the micro base station 2 is responsible for transmission of user plane data of the UE 1.

905. The UE1 accesses the micro base station 2 and communicates with the micro base station 2 using the C-RNTI 1.

Fig. 10 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 10, the user plane data of the UE1 is maintained at the micro base station, the control plane data of the UE1 is handed over from the macro base station 1 to the macro base station 2, and the UE1 communicates with both the macro base station 2 and the micro base station using the C-RNTI1 reallocated by the macro base station 2. The C-RNTI1 is an identifier allocated by the macro base station to the UE1 when the UE1 accesses the macro base station 2 again, and the C-RNTI allocated by the macro base station 2 to the UE using the macro base station 2 as a service site is selected from the first set; the C-RNTI allocated by the micro base station 1 to the UE using the micro base station as the serving site may be selected from the second set, and an intersection of the first set and the second set is an empty set. For example, the first set may be 003D-FFF3 and the second set may be 0001-003C.

The steps of the macro base station 2 in the method of fig. 10 may be performed by the first station in the methods of fig. 2 and 3, the steps of the micro base station in the method of fig. 10 may be performed by the second station in the methods of fig. 2 and 3, and the steps of the UE1 in the method of fig. 10 may be performed by the UE in the method of fig. 4.

1001a, and UE1 communicate control plane data with macro base station 1.

1001b and UE1 communicate user plane data with the micro base station.

1002. The macro base station 2 receives a request message sent by the macro base station 1, the request message being used to request a handover of the control plane data transmission of the UE1 from the macro base station 1 to the macro base station 2.

1003. The macro base station 2 receives the request message of the macro base station 1. The message includes the C-RNTI2 allocated by the macro base station 2 to the UE 1.

1004. The macro base station 1 sends an indication message to the UE1 instructing the UE1 to switch control plane data transmission from the macro base station 1 to the macro base station 2. The message includes the C-RNTI2 allocated by the macro base station 2 to the UE 1.

1005. The UE1 accesses the macro base station 2 and communicates with the macro base station 2 by using the C-RNTI 2.

1006. The macro base station 2 reallocates the C-RNTI1 to the UE 1.

1007. The macro base station 2 or the macro base station 1 transmits a message to the micro base station for notifying the micro base station of the communication of the user plane data with the UE1 using the C-RNTI 2. This step may occur at any step after step 902.

1008. And the micro base station sends a response message to the macro base station 2/macro base station 1 for confirming the message.

Fig. 11 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 11, control plane data for the UE1 is handed over from macro base station 1 to macro base station 2, user plane data for the UE1 is handed over from micro base station 1 to micro base station 2, and the UE1 communicates with both the macro base station 2 and the micro base station 2 using the C-RNTI1 that is reallocated by the macro base station 2. The C-RNTI1 is an identifier distributed by the macro base station for the UE1 when the UE1 accesses the macro base station 2 again, and the macro base stations 1 and 2 are C-RNTIs distributed by the UE which takes the macro base stations 1 and 2 as service sites and are selected from the first set; the C-RNTI allocated by the micro base station 1, 2 for the UE using the micro base station 1, 2 as the serving site may be selected from the second set, and an intersection of the first set and the second set is an empty set. For example, the first set may be 003D-FFF3 and the second set may be 0001-003C.

The steps of the macro base station 2 in the method of fig. 11 may be performed by the first station in the methods of fig. 2 and 3, the steps of the micro base station 2 in the method of fig. 11 may be performed by the second station in the methods of fig. 2 and 3, and the steps of the UE1 in the method of fig. 11 may be performed by the UE in the method of fig. 4.

1101a, and UE1 communicate control plane data with macro base station 1.

1101b, and UE1 communicate user plane data with micro base station 1.

It should be noted that the order of execution of 1001a and 1001b is not limited in the present invention.

1102. The macro base station 1 sends a request message to the macro base station 2 requesting a handover of control plane data transmission of the UE1 from the macro base station 1 to the macro base station 2. Or the request message is used to request a control plane handover.

1103. And the macro base station 2 replies a message of the macro base station 1, wherein the message comprises C-RNTI1 allocated for the UE 1.

1104. The macro base station 1 sends an indication message to the UE1, the indication message being used to instruct the UE1 to communicate with the macro base station 2 using the C-RNTI 1. While the message instructs the UE1 to communicate with micro base station 1 using C-RNTI 1. Meanwhile, the message may also include a packet instructing the UE1 to use the C-RNTI1 for control plane data communication with the macro base station 2 and for user plane data communication with the micro base station 2.

1105. The UE1 accesses the macro base station 2 and communicates with the macro base station 2 using the C-RNTI 1.

1106. The macro base station 1 or the macro base station 2 transmits a message for notifying the handover of the user plane data of the UE1 from the micro base station 1 to the micro base station 2, and communicates with the UE1 using the C-RNTI 1. Step 1006 may be any step after step 1003.

1107. The micro base station 2 sends indication information to the UE1, the indication information being used to indicate that the UE1 starts to communicate with the micro base station 2 using the C-RNTI1, and the indication information also being used for handover of user plane data from the micro base station 1 to the micro base station 2.

1108. The UE1 accesses the micro base station 2 and communicates with the macro base station 2 using the C-RNTI 1.

Fig. 12 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 12, the UE1 changes from communicating with the macro base station only using C-RNTI1 to communicating with both the macro base station and the micro base station using C-RNTI 1. The C-RNTI1 is an identifier distributed by the macro base station for the UE1 when the UE1 accesses the macro base station, and the C-RNTI distributed by the macro base station for the UE taking the macro base station as a service site is selected from the first set; the C-RNTI allocated by the micro base station for the UE using the micro base station as the serving site may be selected from the second set, and an intersection of the first set and the second set is an empty set, for example, the first set may be 003D-FFF3, and the second set may be 0001 + 003C.

The steps of the macro base station in the method of fig. 12 may be performed by the first station in the methods of fig. 2 and 3, the steps of the micro base station in the method of fig. 12 may be performed by the second station in the methods of fig. 2 and 3, and the steps of the UE1 in the method of fig. 12 may be performed by the UE in the method of fig. 6.

1201. The UE1 communicates with the macro base station using the C-RNTI 1.

1202. The macro base station sends information to the micro base station requesting the micro base station to provide user plane data transmission for the UE1 to communicate.

1203. And the micro base station replies an acknowledgement message. The message includes time-frequency resource block information of transmission information allocated for the UE 1.

1204. The macro base station transmits indication information to the UE1, the indication information indicating that the UE1 communicates with the micro base station. The message includes time-frequency resource block information of information transmitted when the UE1 communicates with the micro base station.

1205. The UE1 sends information or data to the micro base station on the time-frequency resource block. This information may be wrapped using C-RNTI 1.

1206. The micro base station obtains the C-RNTI1 and starts communicating with the UE using the C-RNTI 1.

Fig. 13 is a flowchart of a method for configuring an RNTI according to another embodiment of the present invention. In the embodiment of fig. 13, the UE1 changes from communicating only with the macro base station using C-RNTI1 to communicating with the macro base station using C-RNTI1 and communicating with the micro base station using C-RNTI 2. The C-RNTI1 is a temporary identifier distributed by the macro base station for the UE1 when the UE1 accesses the macro base station; when the C-RNTI2 is accessed by the UE1, the micro base station is an identifier allocated by the UE1, and the C-RNTI1 is different from the C-RNTI 2.

The steps of the macro base station in the method of fig. 13 may be performed by the first station in the methods of fig. 5 and 6, the steps of the micro base station in the method of fig. 13 may be performed by the second station in the methods of fig. 5 and 6, and the steps of the UE1 in the method of fig. 13 may be performed by the UE in the methods of fig. 5 and 6.

1301. The UE1 communicates with the macro base station using the C-RNTI 1.

1302. The macro base station sends request information to the micro base station, the request information requesting the micro base station to communicate with the UE 1. For example, to request that a cell be added for the UE 1.

1303. The micro base station allocates C-RNTI2 for the UE 1. Wherein C-RNTI2 may be different from C-RNTI1, i.e. for example using the first and second sets of C-RNTIs. Certainly, the value range of the C-RNTI does not need to be divided into 2 sets, namely each base station can use and allocate the C-RNTI at will, and only two C-RNTIs are provided for the UE1, so that the UE1 can communicate with the macro base station and the micro base station by using the two C-RNTIs respectively. Therefore, C-RNTI1 and C-RNTI2 may be the same or different.

Specifically, the micro base station agrees to add a cell to the terminal, where the cell is the cell of the micro base station. The micro base station allocates C-RNTI2 for the UE 1.

1304. The micro base station transmits indication information to the UE1, the indication information indicating that the UE1 communicates with the micro base station using the C-RNTI 2.

1305. The UE1 accesses the micro base station. The UE1 communicates with the macro base station using C-RNTI1 and with the micro base station using C-RNTI 2.

In the embodiment of the invention, under the scene that one UE is communicated with a plurality of base stations, different RNTIs are configured for the UE, so that the UE can be communicated with the plurality of base stations by using the different RNTIs, and the problem of the configuration of the RNTIs under the condition that one UE is communicated with the plurality of base stations is solved.

Fig. 14 is a block diagram of a station of one embodiment of the invention. The station of fig. 14 is capable of implementing the various steps performed by the first station of fig. 2 and will not be described in detail to avoid repetition.

A communication unit 1401 which communicates with a first user equipment UE using a first RNTI;

a sending unit 1402, sending first information to the second station, where the first information is used to instruct the second station to communicate with the first UE using the first RNTI.

Optionally, as an embodiment, the station uses the RNTI in the first set to communicate with the UE using the station as a serving station, the second station uses the RNTI in the second set to communicate with the UE using the second station as a serving station, and an intersection of the first set and the second set is an empty set.

Optionally, as another embodiment, the first information includes a first RNTI.

Optionally, as another embodiment, the first RNTI includes at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

Optionally, as another embodiment, the station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or the station is a control plane station of the first UE, and the second station is a user plane station of the first UE; or the station is a station corresponding to a primary cell of the first UE, and the second station is a station corresponding to a secondary cell of the first UE; or the cell of the site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the station and the first UE have control plane connection, and the second station and the first UE have user plane connection.

Optionally, as another embodiment, the sending unit 1402 is further configured to send second information to the second station and/or the first UE, where the second information is used to indicate user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first site to the second site; or, the transmission of user data of the first UE is switched from the first site to the second site; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or adding a cell for user data transmission of the first UE to the first UE, wherein the cell is a cell of the second site.

Optionally, as another embodiment, the sending unit 1402 is further configured to send third information to the second station and/or the first UE, where the third information is used to indicate a control plane handover of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or the control plane of the first UE is switched from the first site to the second site; or, the transmission of the control plane data of the first UE is switched from the first site to the second site; or, the transmission of the control signaling of the first UE is switched from the first site to the second site; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is handed over from the first site to the second site.

Optionally, as another embodiment, the method further includes: a receiving unit, configured to receive fourth information sent by a fourth site, where the fourth information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or switching the control plane of the first UE from the fourth site to the first site; or, switching transmission of control plane data of the first UE from the fourth station to the first station; or, switching transmission of control signaling of the first UE from the fourth station to the first station; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is switched from the fourth station to the first station.

Optionally, as another embodiment, the method further includes: and the allocation unit is used for allocating the first RNTI for the first UE.

Optionally, as another embodiment, the station, the second station, and the first UE communicate with each other through carrier aggregation; alternatively, the frequency of the carrier used when the station and the second station communicate with the first UE is different.

Fig. 15 is a block diagram of a station of another embodiment of the present invention. The station of fig. 15 is capable of implementing the various steps performed by the first station in fig. 3, and will not be described in detail to avoid repetition.

A receiving unit 1501, configured to receive first information sent by a first station, where the first information is used to instruct the station to communicate with a first user equipment UE using a first RNTI;

a communication unit 1502 configured to communicate with a first UE using a first RNTI.

Optionally, as an embodiment, the first station uses the RNTI in the first set to communicate with the UE using the first station as a serving station, the station uses the RNTI in the second set to communicate with the UE using the second station as a serving station, and an intersection of the first set and the second set is an empty set.

Optionally, as another embodiment, the first information includes a first RNTI.

Optionally, as another embodiment, the first station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or the first station is a control plane station of the first UE, and the second station is a user plane station of the first UE; or the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; or the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the first station and the first UE have control plane connection, and the second station and the first UE have user plane connection.

Optionally, as another embodiment, the method further includes: a sending unit, configured to receive second information sent by a first station, where the second information is used to indicate user plane switching of a first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first site to the second site; or, the transmission of user data of the first UE is switched from the first site to the second site; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or adding a cell for user data transmission of the first UE to the first UE, wherein the cell is a cell of the second site.

Optionally, as another embodiment, the receiving unit 1501 is further configured to receive third information sent by the first station, where the third information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or the control plane of the first UE is switched from the first site to the second site; or, the transmission of the control plane data of the first UE is switched from the first site to the second site; or, the transmission of the control signaling of the first UE is switched from the first site to the second site; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is handed over from the first site to the second site.

Optionally, as another embodiment, the first station, the station and the first UE communicate through carrier aggregation; alternatively, the first station, the station and the first UE may use different carriers when communicating.

Fig. 16 is a block diagram of a user equipment of another embodiment of the present invention. The user equipment of fig. 16 is capable of implementing the various steps performed by the UE in fig. 4, and will not be described in detail to avoid repetition.

A first communication unit 1601, configured to communicate with a first station using an RNTI, which is allocated by the first station;

a second communication unit 1602, configured to communicate with the second station using the RNTI.

Optionally, as an embodiment, the first communication unit 1601 is specifically configured to receive data scrambled with RNTI sent by the first station, and/or send data scrambled with RNTI to the first station; second communication unit 1602 is specifically configured to receive data scrambled with RNTI sent by the second station, and/or send data scrambled with RNTI to the second station.

Optionally, as another embodiment, the first communication unit 1601 is further configured to send fifth information to the second station, where the fifth information is used to instruct the second station to communicate with the user equipment UE using the RNTI.

Optionally, as another embodiment, the fifth information includes an RNTI.

Optionally, as another embodiment, the first communication unit 1601 is further configured to receive second information sent by the first station, where the second information is used to instruct user plane switching of the UE; or, DRB handover of data radio bearer of UE; or, the user plane bearer of the UE is switched; or, the user plane of the UE is switched from the first site to the second site; or, the transmission of the user plane data of the UE is switched from the first station to the second station; or, the transmission of user data of the UE is switched from the first station to the second station; or, establishing a user plane of the UE on the second site; or, establishing bearer/DRB/user plane bearer of the UE on the second site; or adding a cell for UE user data transmission for the UE, wherein the cell is a cell of a second site; or, control plane switching of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or the control plane of the first UE is switched from the first site to the second site; or, the transmission of the control plane data of the first UE is switched from the first site to the second site; or, the transmission of the control signaling of the first UE is switched from the first site to the second site; alternatively, the transmission of the control signaling and the transmission of the portion of the user data for the first UE is handed over from the first site to the second site.

Optionally, as another embodiment, the first station uses the RNTI in the first set to communicate with the UE with the first station as a serving station, the second station uses the RNTI in the second set to communicate with the UE with the second station as a serving station, and an intersection of the first set and the second set is an empty set.

Fig. 17 is a block diagram of a station of another embodiment of the present invention. The station of fig. 17 is capable of implementing the various steps performed by the first station in fig. 5, and will not be described in detail to avoid repetition.

A communication unit 1701 for communicating with a user equipment UE using a first RNTI;

a sending unit 1702, configured to send, to the second station, first information, where the first information is used to instruct the second station to communicate with the UE using a second RNTI different from the first RNTI.

Optionally, as an embodiment, the sending unit 1702 is further configured to send, to the first UE, second information, where the second information is used to instruct the UE to communicate with the second station using the second RNTI.

Optionally, as another embodiment, the first information includes a second RNTI.

Fig. 18 is a block diagram of a station of another embodiment of the present invention. The station of fig. 18 is capable of implementing the various steps in fig. 6 performed by the second station, and will not be described in detail to avoid repetition.

A receiving unit 1801, configured to receive first information sent by a first station, where the first information is used to instruct the station to communicate with a user equipment UE, and the first information includes a first RNTI used by the first station to communicate with the UE;

an allocating unit 1802 is configured to allocate a second RNTI to the UE, where the second RNTI is different from the first RNTI.

Optionally, as an embodiment, the RNTI includes at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

Fig. 19 is a block diagram of a user equipment of another embodiment of the present invention. The user equipment of fig. 19 is capable of implementing the various steps performed by the UE in fig. 7, and will not be described in detail to avoid repetition.

A first communication unit 1901, configured to communicate with a first station using a first RNTI, where the first RNTI is allocated by the first station;

a second communication unit 1902, configured to communicate with a second station using a second RNTI, where the second RNTI is allocated by the second station.

Optionally, as an embodiment, the first communication unit is specifically configured to receive first information sent by the first station, where the first information is used to instruct to use the second RNTI to communicate with the second station.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for configuring a Radio Network Temporary Identifier (RNTI), comprising:

the first station communicates with first User Equipment (UE) by using a first Radio Network Temporary Identifier (RNTI); the intersection of a first RNTI set maintained by the first site and a second RNTI set maintained by a second site is an empty set, the first site allocates RNTIs in the first RNTI set for the UE which uses the first site as a service site, the second site allocates RNTIs in the second RNTI set for the UE which uses the second site as the service site, the first RNTI belongs to the first RNTI set, the second site uses a second RNTI to communicate with the second UE, and the second RNTI belongs to the second RNTI set;

the first station sends first information to the second station, the first information is used for indicating the second station to communicate with the first UE by using the first RNTI, and the first station and the second station jointly serve the first UE.

2. The method of claim 1, wherein the first information comprises the first RNTI.

3. The method of claim 1 or 2, wherein the first RNTI comprises at least one of:

the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

4. The method of any one of claims 1-3,

the first site and the first UE transmit control signaling, and the second site and the first UE transmit user data; alternatively, the first and second electrodes may be,

the first site is a control plane site of the first UE, and the second site is a user plane site of the first UE; alternatively, the first and second electrodes may be,

the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; alternatively, the first and second electrodes may be,

the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; alternatively, the first and second electrodes may be,

the first site and the first UE have control plane connection, and the second site and the first UE have user plane connection; alternatively, the first and second electrodes may be,

the first site is a site of a macro cell of the first UE, and the second site is a site of a small cell of the first UE.

5. The method of any one of claims 1-4, further comprising:

the first station sends second information to the second station and/or the first UE, wherein the second information is used for indicating

Switching a user plane of the first UE; alternatively, the first and second electrodes may be,

a Data Radio Bearer (DRB) handover of the first UE; alternatively, the first and second electrodes may be,

switching user plane bearers of the first UE; alternatively, the first and second electrodes may be,

switching a user plane of the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

switching transmission of user plane data for the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

switching transmission of user data for the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

establishing a user plane of the first UE on the second site; alternatively, the first and second electrodes may be,

establishing a bearer/DRB/user plane bearer of the first UE on the second site; alternatively, the first and second electrodes may be,

and adding a cell for the first UE user data transmission, wherein the cell is the cell of the second site.

6. The method of any one of claims 1-4, further comprising:

the first station sends third information to the second station and/or the first UE, wherein the third information is used for indicating that

Control plane switching of the first UE; alternatively, the first and second electrodes may be,

switching Signaling Radio Bearer (SRB) of the first UE; alternatively, the first and second electrodes may be,

switching a control plane of the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

switching transmission of control plane data of the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

switching transmission of control signaling for the first UE from the first site to the second site; alternatively, the first and second electrodes may be,

the transmission of control signaling and the transmission of a portion of user data for the first UE is handed over from the first site to the second site.

7. The method of any of claims 1-4, prior to the first station communicating with the first UE using the first RNTI, further comprising:

the first station receives fourth information sent by a fourth station, wherein the fourth information is used for indicating control plane switching of the first UE; alternatively, the first and second electrodes may be,

SRB handover of the first UE; alternatively, the first and second electrodes may be,

switching a control plane of the first UE from the fourth site to the first site; alternatively, the first and second electrodes may be,

switching transmission of control plane data of the first UE from the fourth site to the first site; alternatively, the first and second electrodes may be,

switching transmission of control signaling for the first UE from the fourth station to the first station; alternatively, the first and second electrodes may be,

switching transmission of control signaling and transmission of a portion of user data for the first UE from the fourth site to the first site.

8. The method of claim 1 or 6, prior to the first station communicating with the first UE using the first RNTI, further comprising:

and the first station allocates the first RNTI for the first UE.

9. The method of any one of claims 1-3, wherein the first station and the second station collectively serve the first UE through carrier aggregation; alternatively, the first and second electrodes may be,

the first station and the second station are different in frequency of carriers used for communication with the first UE.

10. The method according to any of claims 1-9, wherein any RNTI in the first set of RNTIs ranges from 003D to FFF3, and wherein any RNTI in the second set of RNTIs ranges from 0001C to 003C.

11. A method for configuring a Radio Network Temporary Identifier (RNTI), comprising:

a second station receives first information sent by a first station, wherein the first information is used for indicating the second station to use a first RNTI (radio network temporary identifier) to communicate with first User Equipment (UE); the intersection of a first RNTI set maintained by the first site and a second RNTI set maintained by a second site is an empty set, the first site allocates RNTIs in the first RNTI set for the UE which uses the first site as a service site, the second site allocates RNTIs in the second RNTI set for the UE which uses the second site as a service site, the first RNTI belongs to the first RNTI set, and the first site and the second site serve the first UE together;

the second station communicates with a second UE using a second RNTI, the second RNTI belonging to the second RNTI set;

the second station communicates with the first UE using the first RNTI.

12. The method of claim 11, wherein the first information comprises the first RNTI.

13. The method of claim 11 or 12, wherein the first RNTI comprises at least one of:

14. The method of any one of claims 11-13,

15. The method of any one of claims 11-14, further comprising:

the second station receives second information sent by the first station, wherein the second information is used for indicating

16. The method of any one of claims 11-14, further comprising:

the second station receives third information sent by the first station, wherein the third information is used for indicating

17. The method of any one of claims 11-13, wherein the first station and the second station collectively serve the first UE through carrier aggregation; alternatively, the first and second electrodes may be,

18. The method of any of claims 11-17, wherein any RNTI in the first set of RNTIs ranges from 003D to FFF3, and wherein any RNTI in the second set of RNTIs ranges from 0001 to 003C; or

The value range of the first RNTI set is the first N bits of a 16-bit RNTI value, the 16-N bits of the RNTI value are 0, the value range of the second RNTI set is the 16-N bits of the RNTI value, and the first N bits of the RNTI value are 0.

19. A method for configuring a Radio Network Temporary Identifier (RNTI), comprising:

the first station communicates with User Equipment (UE) by using a first Radio Network Temporary Identifier (RNTI);

the first station sends first information to a second station, wherein the first information is used for indicating the second station to communicate with the UE by using a second RNTI (radio network temporary identifier) different from the first RNTI, and the first station and the second station jointly serve the UE.

20. The method of claim 19, further comprising:

and the first station sends second information to the UE, wherein the second information is used for indicating the UE to use the second RNTI to communicate with the second station.

21. The method of claim 19 or 20, wherein the RNTI comprises at least one of:

22. The method of any of claims 19-21, wherein the first information comprises the second RNTI.

23. A method for configuring a Radio Network Temporary Identifier (RNTI), comprising:

a second station receives first information sent by a first station, wherein the first information is used for indicating the second station to use a second RNTI (radio network temporary identifier) different from the first RNTI to communicate with User Equipment (UE);

and the second station allocates the second RNTI for the UE, and the first station and the second station jointly serve the UE.

24. The method of claim 23, wherein the RNTI comprises at least one of:

25. A station, wherein the station is a first station, comprising:

the communication unit is used for communicating with the first User Equipment (UE) by using the first Radio Network Temporary Identifier (RNTI); the intersection of a first RNTI set maintained by the first site and a second RNTI set maintained by the second site is an empty set, the first site allocates RNTIs in the first RNTI set for the UE which uses the first site as a service site, the second site allocates RNTIs in the second RNTI set for the UE which uses the second site as the service site, the first RNTI belongs to the first RNTI set, the second site uses a second RNTI to communicate with the second UE, and the second RNTI belongs to the second RNTI set;

a sending unit, configured to send first information to a second station, where the first information is used to instruct the second station to use the first RNTI to communicate with the first UE.

26. The station of claim 25, wherein the first station and the second station collectively serve the first UE.

27. A station as claimed in claim 25 or 26, characterised in that the first information comprises the first RNTI.

28. A station according to any of claims 25-27, wherein the first RNTI comprises at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

29. The station according to any of claims 25-28, wherein the station performs transmission of control signaling with the first UE, and the second station performs transmission of user data with the first UE; or the station is a control plane station of the first UE, and the second station is a user plane station of the first UE; or the station is a station corresponding to a primary cell of the first UE, and the second station is a station corresponding to a secondary cell of the first UE; or the cell of the site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the station and the first UE have control plane connection, and the second station and the first UE have user plane connection; or, the first station is a station of a macro cell of the first UE, and the second station is a station of a small cell of the first UE.

30. The station according to any of claims 25-29, wherein the sending unit is further configured to send second information to the second station and/or the first UE, where the second information is used to indicate a user plane handover for the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

31. The station according to any of claims 25 to 30, wherein the sending unit is further configured to send third information to the second station and/or the first UE, where the third information is used to indicate a control plane handover of the first UE; or, the Signaling Radio Bearer (SRB) of the first UE is switched; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

32. A station as claimed in any one of claims 25 to 31, further comprising:

a receiving unit, configured to receive fourth information sent by a fourth station, where the fourth information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or, switching a control plane of the first UE from the fourth site to the first site; or, switching transmission of control plane data of the first UE from the fourth station to the first station; or switching transmission of control signaling for the first UE from the fourth station to the first station; or, switching transmission of control signaling and transmission of a portion of user data of the first UE from the fourth station to the first station.

33. A station as claimed in claim 25 or 31, further comprising:

an allocating unit, configured to allocate the first RNTI to the first UE.

34. The station of any one of claims 25-28, wherein the station and the second station collectively serve the first UE through carrier aggregation; or the frequencies of the carriers used by the station and the second station for communicating with the first UE are different.

35. The station of any of claims 25-34, wherein the first set of RNTIs ranges in value from 003D to FFF3, and wherein the second set of RNTIs ranges in value from 0001 to 003C.

36. A station, wherein the station is a second station, comprising:

a receiving unit, configured to receive first information sent by a first station, where the first information is used to instruct the station to communicate with a first user equipment UE using a first radio network temporary identifier RNTI; the intersection of a first RNTI set maintained by the first site and a second RNTI set maintained by a second site is an empty set, the first site allocates RNTIs in the first RNTI set for the UE which uses the first site as a service site, the second site allocates RNTIs in the second RNTI set for the UE which uses the second site as a service site, and the first RNTI belongs to the first RNTI set;

a communication unit configured to communicate with the first UE using the first RNTI;

the communication unit is further configured to communicate with a second UE using a second RNTI, the second RNTI belonging to the second set of RNTIs.

37. The station of claim 36, wherein the first station and the second station collectively serve the first UE.

38. A station as claimed in claim 36 or 37, in which the first information comprises the first RNTI.

39. A station according to any of claims 36-38, wherein the first RNTI comprises at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

40. The station of any of claims 36-39, wherein the first station transmits control signaling with the first UE, and wherein the station transmits user data with the first UE; or, the first site is a control plane site of the first UE, and the second site is a user plane site of the first UE; or, the first site is a site corresponding to a primary cell of the first UE, and the second site is a site corresponding to a secondary cell of the first UE; or the cell of the first site is a primary cell of the first UE, and the cell of the second site is a secondary cell of the first UE; or the first site and the first UE have control plane connection, and the second site and the first UE have user plane connection; or, the first station is a station of a macro cell of the first UE, and the second station is a station of a small cell of the first UE.

41. A site according to any one of claims 36 to 40, further comprising:

a sending unit, configured to receive second information sent by the first station, where the second information is used to indicate user plane switching of the first UE; or, the Data Radio Bearer (DRB) of the first UE is switched; or, the user plane of the first UE carries the handover; or, the user plane of the first UE is switched from the first site to the second site; or, the transmission of the user plane data of the first UE is switched from the first station to the second station; or, the transmission of user data of the first UE is switched from the first station to the second station; or, establishing a user plane of the first UE on the second site; or, establishing a bearer/DRB/user plane bearer of the first UE on the second site; or, adding a cell for user data transmission of the first UE to the first UE, where the cell is a cell of the second station.

42. The station of any one of claims 36 to 40, wherein the receiving unit is further configured to receive third information sent by the first station, where the third information is used to indicate control plane switching of the first UE; or, SRB handover of the first UE; or, the control plane of the first UE is switched from the first site to the second site; or, the transmission of control plane data of the first UE is switched from the first station to the second station; or, the transmission of the control signaling of the first UE is switched from the first station to the second station; or, the transmission of the control signaling and the transmission of the partial user data of the first UE is switched from the first station to the second station.

43. The station of any one of claims 36-39, wherein the first station and the station collectively serve the first UE through carrier aggregation; or the frequencies of the carriers used by the first station, the station and the first UE for communication are different.

44. The station of any of claims 36-43, wherein the first set of RNTIs range in value from 003D to FFF3, and wherein the second set of RNTIs range in value from 0001 to 003C.

45. A station, wherein the station is a first station, comprising:

a communication unit, configured to communicate with a user equipment UE using a first radio network temporary identifier RNTI;

a sending unit, configured to send first information to a second station, where the first information is used to instruct the second station to communicate with the UE using a second RNTI different from the first RNTI, and the first station and the second station serve the UE together.

46. The station of claim 45, wherein the sending unit is further configured to send second information to the UE, and wherein the second information is used to instruct the UE to communicate with the second station using the second RNTI.

47. A station as claimed in claim 45 or 46, wherein the RNTI comprises at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.

48. A station according to any of claims 45-47, characterised in that the first information comprises the second RNTI.

49. A station, wherein the station is a second station, comprising:

a receiving unit, configured to receive first information sent by a first station, where the first information is used to instruct the second station to communicate with a User Equipment (UE), and the first information includes a first Radio Network Temporary Identifier (RNTI) used by the first station to communicate with the UE;

and the allocation unit is used for allocating a second RNTI for the UE, the second RNTI is different from the first RNTI, and the first site and the second site serve the UE together.

50. The station of claim 49, wherein the RNTI comprises at least one of: the temporary identifier comprises a cell wireless network temporary identifier, a semi-static scheduling cell wireless network temporary identifier, a temporary cell wireless network temporary identifier, a transmitter power control physical uplink control channel wireless network temporary identifier and a transmitter power control physical uplink shared channel wireless network temporary identifier.