CN104255056A

CN104255056A - Switching method and device

Info

Publication number: CN104255056A
Application number: CN201280036231.7A
Authority: CN
Inventors: 曾清海; 郭轶
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2012-10-19
Filing date: 2012-10-19
Publication date: 2014-12-31
Anticipated expiration: 2032-10-19
Also published as: CN104255056B; WO2014059663A1

Abstract

The embodiments of the present invention relate to a switching method and device. The method comprises: a source base station determining to switch downlink transmission of a user equipment to a first cell or to switch uplink transmission of the user equipment to the first cell; the source base station sending a switching request to a target base station corresponding to the first cell, the switching request having information about the downlink transmission or information about the uplink transmission to be switched of the user equipment; and the source base station sending a switching command to the user equipment, the switching command having information about a downlink resource configuration allocated for the user equipment corresponding to the downlink transmission to be switched or information about an uplink resource configuration corresponding to the uplink transmission to be switched. Thus, one of the uplink transmission and the downlink transmission of the user equipment is provided with a cell service by the source base station, and the other is provided with a cell service by the target base station, thereby improving the cell throughput and the spectrum efficiency.

Description

Switching method and device

Switching method and equipment

The present embodiments relate to communication technical field, more particularly to a kind of switching method and equipment for technical field.Background technology is in heterogeneous network（Heterogeneous network, Hetnet) in, some low-power network nodes are laid out in macro base station (macro base station) coverage（Low power node, LPN) to provide focus covering, increase cell capacity and carry out load balancing etc..

In the prior art, by for Microcell（Pico cell) set cell range to extend（Cell range extension, CRE) method by macrocell（Macro Cell) user equipment（User equipment, UE) Microcell is switched to, Microcell is accessed in the UE of CRE scopes, serving cell is used as using Microcell（Serving cell), downlink and uplink provides service by Microcell.However, in this technology, in order to reduce the interference that macrocell is descending to UE, almost empty frame of the macrocell in setting（Almost blank subframes, ABS) do not send or low-power sends control signaling with user data so as to reducing cell throughout and spectrum efficiency.The content of the invention is the present invention provide a kind of switching method and equipment, to improve cell throughout and spectrum efficiency.

The first aspect of the present invention provides a kind of switching method, including：

Source base station determines that the downlink transfer of user equipment is switched into first community or the uplink of user equipment is switched into first community；

The source base station sends handover request to the corresponding target BS of the first community, and the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The source base station sends switching command to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so that the user equipment keeps the uplink with the source base station after switching and the user equipment carries out the user equipment after the downlink transfer, or switching via the target BS and kept the downlink transfer between the source base station and via the target BS Carry out the uplink；

Wherein, the downlink transfer information and the downlink resource configuration information include being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information and the ascending resource configuration information include being used to indicate that the switching type for carrying out uplink switching is indicated.

With reference in a first aspect, in the first possible implementation of first aspect, the source base station determines the downlink transfer of the user equipment switching to first community, specifically includes：When the source base station is micro-base station, and the target BS is macro base station, the micro-base station determines to switch to the downlink transfer of the user equipment into the first community for providing service by the macro base station；Or, the source base station determines the uplink of the user equipment switching to first community, specifically includes：When the source base station is macro base station, and the target BS is micro-base station, the macro base station determines to switch to the uplink of the user equipment into the first community for providing service by the micro-base station.

With reference to first aspect, or the first possible implementation of first aspect, in second of possible implementation of first aspect, the coverage of first community cell corresponding with the source base station for providing service to the user equipment before switching has overlapping；Or, the target BS has overlapping with the frequency of the source base station.

With reference to first aspect, the possible implementation of the first of first aspect, or first aspect second of possible implementation, in the third possible implementation of first aspect, the source base station is sent to the target BS before handover request message, in addition to：The source base station sends radio resource allocation request message to the target BS, and the allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

With reference in a first aspect, the third possible implementation of the first possible implementation of first aspect, second of possible implementation of first aspect, or first aspect, in the 4th kind of possible implementation of first aspect, in addition to：The source base station sends media access control layer control unit MAC CE to the user equipment, and the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

With reference to first aspect, or any one the possible implementation of the first possible implementation of first aspect into the 4th kind of possible implementation method of first aspect, in the 5th kind of possible implementation of first aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameter, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

With reference to first aspect, or any one the possible implementation of the first possible implementation of first aspect into the 5th kind of possible implementation method of first aspect, it is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed in the 6th kind of possible implementation of first aspect：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

With reference to first aspect, or any one the possible implementation of the first possible implementation of first aspect into the 6th kind of possible implementation method of first aspect, in the 7th kind of possible implementation of first aspect, sign is also included in the switching command；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

The second aspect of the present invention provides a kind of switching method, including：

Target BS receives the handover request that source base station is sent, and the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

The target BS determines to allow the downlink transfer of the user equipment or uplink to switch to the first community that the target BS is provided；

The target BS sends the to be switched descending biography distributed for the user equipment to the source base station Defeated corresponding downlink resource configuration information or the corresponding ascending resource configuration information of to be switched uplink, so that the user equipment keeps the uplink with the source base station and carries out the downlink transfer via the target BS after switching, or so as to after switching the user equipment keep the downlink transfer between the source base station and carry out the uplink via the target BS；

Wherein, the downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

With reference to second aspect, in the first possible implementation of second aspect, the target BS determines to allow the downlink transfer of the user equipment to switch to the first community that the target BS is provided, and specifically includes：When the source base station is micro-base station, and the target BS is macro base station, the target BS determines to allow the downlink transfer of the user equipment to switch to the first community that the target BS is provided；Or, the target BS determines to allow the uplink of the user equipment to switch to the first community that the target BS is provided, and specifically includes：When the source base station is macro base station, and the target BS is micro-base station, the target BS determines to allow the uplink of the user equipment to switch to the first community that the target BS is provided.

With reference to the first possible implementation of second aspect, or second aspect, in second of possible implementation of second aspect, the target BS is received before the handover request that source base station is sent, in addition to：The target BS receives the radio resource allocation request message that the source base station is sent, and the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

With reference to second aspect, the possible implementation of the first of second aspect, or second of possible implementation of second aspect, in the third possible implementation of second aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：Ascending wireless resource specific configuration information and/or institute State the C-RNTI information of user equipment.

The third aspect of the present invention provides a kind of switching method, including：

User equipment receives the switching command that source base station is sent, and the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

The user equipment carries out downlink resource configuration according to the downlink resource configuration information, and the uplink with the source base station is kept after switching and the downlink transfer is carried out via target BS；Or ascending resource configuration is carried out according to the ascending resource configuration information, the downlink transfer between the source base station is kept after switching and the uplink is carried out via the target BS；

Wherein, the downlink resource configuration information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

With reference to the third aspect, in the first possible implementation of the third aspect, sign is also included in the switching command that the user equipment is received；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

With reference to the first possible implementation of the third aspect, or the third aspect, in second of possible implementation of the third aspect, in addition to：The PDCP entity divisions are up PDCP entities and descending PDCP entities by the user equipment, the up PDCP entities are corresponding with the second community that the source base station is provided, and the descending PDCP entities are corresponding with the first community that the target BS is provided；The RLC entity divisions are up RLC entities and descending RLC entities by the user equipment, and the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station. With reference to second of possible implementation of the third aspect, in the third possible implementation of the third aspect, the source base station is micro-base station, and the target BS is macro base station.

With reference to the first possible implementation of the third aspect, or the third aspect, in the 4th kind of possible implementation of the third aspect, in addition to：The PDCP entity divisions are up PDCP entities and descending PDCP entities by the user equipment, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；The RLC entity divisions are up RLC entities and descending RLC entities by the user equipment, and the up RLC entities are corresponding with the first community that the target BS is provided, and the descending RLC entities are corresponding with the second community that the source base station is provided；Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

With reference to the third aspect the 4th in possible implementation, in the 5th kind of possible implementation of the third aspect, the source base station be macro base station, the target BS be micro-base station.

The fourth aspect of the present invention provides a kind of base station, including：

Determining unit, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community；

Transmitting element, for sending handover request to the corresponding target BS of the first community, the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The transmitting element is additionally operable to, switching command is sent to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so that the user equipment keeps the uplink with the base station after switching and the user equipment carries out the downlink transfer via the target BS, or keep the downlink transfer and the user equipment between the base station to carry out the uplink via the target BS after switching；

With reference to fourth aspect, in the first possible implementation of fourth aspect, the determining unit specifically for：When the base station is micro-base station, and the target BS is macro base station, it is determined that the downlink transfer of the user equipment to be switched to the first community that service is provided by the macro base station；Or, when The base station is macro base station, when the target BS is micro-base station, it is determined that the uplink of the user equipment to be switched to the first community that service is provided by the micro-base station.

With reference to fourth aspect, or the first possible implementation of fourth aspect, in second of possible implementation of fourth aspect, the coverage of first community cell corresponding with the base station for providing service to the user equipment before switching has overlapping；Or, the base station has overlapping with the frequency of the target BS.

With reference to fourth aspect, second of possible implementation of the first possible implementation of fourth aspect, or fourth aspect, in the third possible implementation of fourth aspect, the transmitting element is additionally operable to：Radio resource allocation request message is sent to the target BS, the allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

With reference to fourth aspect, or any one the possible implementation of the first possible implementation of fourth aspect into the third possible implementation of fourth aspect, in the 4th kind of possible implementation of fourth aspect, the transmitting element is additionally operable to：Media access control layer control unit MAC CE are sent to the user equipment, the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

With reference to fourth aspect, or any one the possible implementation of the first possible implementation of fourth aspect into the 4th kind of possible implementation of fourth aspect, in the 5th kind of possible implementation of fourth aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user terminal-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user terminal.

With reference to fourth aspect, or fourth aspect any one possible implementation into the 5th kind of possible implementation of fourth aspect of the first possible implementation, in the 6th kind of possible implementation of fourth aspect：It is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB are descending Configuration information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

With reference to fourth aspect, or any one the possible implementation of the first possible implementation of fourth aspect into the 6th kind of possible implementation of fourth aspect, in the 7th kind of possible implementation of fourth aspect, sign is also included in the switching command；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the base station for being used to carry to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and the up-link and downlink the fifth aspect of the present invention between reservation and the base station provide a kind of base station, including：

Receiving unit, the handover request message for receiving source base station transmission, the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Determining unit, for determining to allow the downlink transfer of the user equipment or uplink to switch to the first community that the base station is provided；

Transmitting element, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for the user equipment to the source base station, so that the user equipment keeps the uplink with the source base station after switching and the user equipment carries out the downlink transfer via the base station after handover, or so as to after switching the user equipment keep carrying out the uplink via the base station after handover the downlink transfer and the user equipment between the source base station；

With reference to the 5th aspect, in the first possible implementation of the 5th aspect, the determining unit, specifically for：When the source base station is micro-base station, and the base station is macro base station, it is determined that allowing the downlink transfer of the user equipment to switch to the first community that the base station is provided；Or, when the source base station is grand Base station, when the base station is micro-base station, it is determined that allowing the uplink of the user equipment to switch to the first community that the base station is provided.

With reference to the 5th aspect, or the first possible implementation in terms of the 5th, in second of possible implementation of the 5th aspect, the receiving unit, it is additionally operable to receive the radio resource allocation request message that the source base station is sent, the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the base station.

With reference to the 5th aspect, the first possible implementation of 5th aspect, or second of possible implementation in terms of the 5th, in the third possible implementation of the 5th aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

The sixth aspect of the present invention provides a kind of user equipment, including：

Receiving unit, the switching command for receiving source base station transmission, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

Dispensing unit, the uplink with the source base station is kept for carrying out downlink resource configuration according to the downlink resource configuration information, after switching and the downlink transfer is carried out via target BS after handover；Or ascending resource configuration is carried out according to the ascending resource configuration information, keep the downlink transfer and the user equipment between the source base station to carry out the uplink via the target BS after handover after switching；

With reference to the 6th aspect, in the first possible implementation of the 6th aspect, the switching command In also include sign；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

With reference to the first possible implementation of the 6th aspect, or the 6th aspect, in second of possible implementation of the 6th aspect, in addition to division unit, it is used for：It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the second community that the source base station is provided, and the descending PDCP entities are corresponding with the first community that the target BS is provided；It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station.

With reference to second of possible implementation of the 6th aspect, in the third possible implementation of the 6th aspect, the source base station is micro-base station, and the target BS is macro base station.

With reference to the first possible implementation of the 6th aspect, or the 6th aspect, in the 4th kind of possible implementation of the 6th aspect, in addition to division unit, it is used for：It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the first community that the target BS is provided, and the descending RLC entities are corresponding with the second community that the source base station is provided；Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

With reference to the 6th aspect the 4th in possible implementation, the 6th aspect the 5th kind of possible implementation in, the source base station be macro base station, the target BS be micro-base station.

The seventh aspect of the present invention provides a kind of base station, including：

Processor, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community； Emitter, for sending handover request to the corresponding target BS of the first community, the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The emitter is additionally operable to, switching command is sent to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so that the user equipment keeps the uplink with the base station after switching and the user equipment carries out the downlink transfer via the target BS after handover, or keep the downlink transfer and the user equipment between the base station to carry out the uplink via the target BS after handover after switching；

With reference to the 7th aspect, the 7th aspect the first possible implementation in, the processor specifically for：When the base station is micro-base station, and the target BS is macro base station, it is determined that the downlink transfer of the user equipment to be switched to the first community that service is provided by the macro base station；Or, when the base station is macro base station, and the target BS is micro-base station, it is determined that the uplink of the user equipment to be switched to the first community that service is provided by the micro-base station.

With reference to the 7th aspect, or the first possible implementation in terms of the 7th, in second of possible implementation of the 7th aspect, the coverage of first community cell corresponding with the source base station for providing service to the user equipment before switching has overlapping；Or, the target BS has overlapping with the frequency of the source base station.

With reference to the 7th aspect, second of possible implementation of the first possible implementation of the 7th aspect, or the 7th aspect, in the third possible implementation of the 7th aspect, the emitter is additionally operable to：Radio resource allocation request message is sent to the target BS, the allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

With reference to the 7th aspect or the 7th aspect the first possible implementation to the 7th aspect the third possible implementation in any one possible implementation, in the 4th kind of possible implementation of the 7th aspect, the emitter is additionally operable to：Media access control layer control unit MAC CE are sent to the user equipment, the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

With reference to the 7th aspect or the 7th aspect the first possible implementation to the 7th aspect the 4th Any one possible implementation in possible implementation is planted, in the 5th kind of possible implementation of the 7th aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user terminal-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user terminal.

With reference to the 7th aspect or the 7th aspect the first possible implementation to the 7th aspect the 5th kind of possible implementation in any one possible implementation, it is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed in the 6th kind of possible implementation of the 7th aspect：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

With reference to the 7th aspect or the 7th aspect the first possible implementation to the 7th aspect the 6th kind of possible implementation in any one possible implementation, in the 7th kind of possible implementation of the 7th aspect, sign is also included in the switching command；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the base station for being used to carry to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the base station.

The eighth aspect of the present invention provides a kind of base station, including：

Receiver, the handover request message for receiving source base station transmission, the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Processor, downlink transfer or uplink for determining the permission user equipment switch to described The first community that base station is provided；

Emitter, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for the user equipment to the source base station, so that the user equipment keeps the uplink with the source base station after switching and the user equipment carries out the downlink transfer via the base station after handover, or so as to after switching the user equipment keep carrying out the uplink via the base station after handover the downlink transfer and the user equipment between the source base station；

With reference to eighth aspect, in the first possible implementation of eighth aspect, the processor, specifically for：When the source base station is micro-base station, and the base station is macro base station, it is determined that allowing the downlink transfer of the user equipment to switch to the first community that the base station is provided；Or, when the source base station is macro base station, and the base station is micro-base station, it is determined that allowing the uplink of the user equipment to switch to the first community that the base station is provided.

With reference to eighth aspect, or the first possible implementation of eighth aspect, in second of possible implementation of eighth aspect, the radio resource allocation request message that the source base station is sent is received, the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the base station.

With reference to eighth aspect, the possible implementation of the first of eighth aspect, or second of possible implementation of eighth aspect, in the third possible implementation of eighth aspect, the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment. The ninth aspect of the present invention provides a kind of user equipment, including：

Receiver, the switching command for receiving source base station transmission, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

Processor, the uplink with the source base station is kept for carrying out downlink resource configuration according to the downlink resource configuration information, after switching and the downlink transfer is carried out via target BS after handover；Or ascending resource configuration is carried out according to the ascending resource configuration information, keep the downlink transfer and the user equipment between the source base station to carry out the uplink via the target BS after handover after switching；

With reference to the 6th aspect, in the first possible implementation of the 9th aspect, sign is also included in the switching command；The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or, the sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

With reference to the first possible implementation of the 9th aspect, or the 9th aspect, in second of possible implementation of the 9th aspect, the processor is additionally operable to：It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the second community that the source base station is provided, and the descending PDCP entities are corresponding with the first community that the target BS is provided；It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station.

With reference to second of possible implementation of the 9th aspect, in the third possible implementation of the 9th aspect, the source base station is micro-base station, and the target BS is macro base station. With reference to the first possible implementation of the 9th aspect, or the 9th aspect, in the 4th kind of possible implementation of the 9th aspect, the processor is additionally operable to：It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the first community that the target BS is provided, and the descending RLC entities are corresponding with the second community that the source base station is provided；Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

With reference to the 4th kind of possible implementation of the 9th aspect, in the 5th kind of possible implementation of the 9th aspect, the source base station is macro base station, and the target BS is micro-base station.

Switching method and equipment that the present invention is provided, the uplink of user equipment or downlink transfer are switched to target BS by source base station, in the uplink and downlink transfer of user equipment cell serves provided by source base station is provided, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.Brief description of the drawings is in order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, the required accompanying drawing used in embodiment or description of the prior art will be briefly described below, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.

The flow chart of switching method one embodiment that Fig. 1 provides for the present invention；

The flow chart for switching method another embodiment that Fig. 2 provides for the present invention；

The flow chart for switching method another embodiment that Fig. 3 provides for the present invention；

The flow chart for switching method another embodiment that Fig. 4 provides for the present invention；

PDCP entities and the schematic diagram of RLC AM entities that Fig. 5 provides for present example；Fig. 6 is user equipment and the schematic diagram of one communication scenes of source base station and target BS in embodiment illustrated in fig. 4；

Fig. 7 is the schematic diagram of user equipment Yu source base station and target BS another communication scenes in embodiment illustrated in fig. 4；

A kind of heterogeneous network schematic diagram of a scenario that Fig. 8 embodiment of the present invention is applicable； The flow chart for switching method another embodiment that Fig. 9 provides for the present invention；

Figure 10 is user equipment and the schematic diagram of one communication scenes of source base station and target BS in embodiment illustrated in fig. 9；

Figure 11 is the schematic diagram of user equipment Yu source base station and target BS another communication scenes in embodiment illustrated in fig. 9；

A kind of network architecture schematic diagram of switching method that Figure 12 provides for the present invention；

Switching method another network architecture schematic diagram that Figure 13 provides for the present invention；

The structural representation of base station one embodiment that Figure 14 provides for the present invention；

The structural representation for another embodiment of base station that Figure 15 provides for the present invention；

The structural representation of user equipment one embodiment that Figure 16 provides for the present invention；

The structural representation for another embodiment of base station that Figure 17 provides for the present invention；

The structural representation for another embodiment of base station that Figure 18 provides for the present invention；

The structural representation for user equipment another embodiment that Figure 19 provides for the present invention；

The structural representation of communication system one embodiment that Figure 20 provides for the present invention.Embodiment is below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.

The techniques described herein may be used in various communication systems, such as current 2G, 3G communication systems and next generation communication system, such as global system for mobile communications（GSM, Global System for Mobile communications), CDMA (CDMA, Code Division Multiple Access) system, time division multiple acess（TDMA, Time Division Multiple Access) system, WCDMA（WCDMA, Wideband Code Division Multiple Access Wireless), frequency division multiple access（FDMA, Frequency Division Multiple Addressing) system, OFDM (OFDMA, Orthogonal Frequency-Division Multiple Access) system, Single Carrier Frequency Division Multiple Access (SC-FDMA) system, GPRS（GPRS, General Packet Radio Service) system, Long Term Evolution（LTE, Long Term Evolution) system, and other such communication systems. The user equipment being related in the application, can be that wireless terminal can also be catv terminal, wireless terminal can refer to the equipment for providing a user voice and/or data connectivity, portable equipment with wireless connecting function or other processing equipments for being connected to radio modem.Wireless terminal can be through wireless access network（For example, RAN, Radio Access Network) communicated with one or more core nets, wireless terminal can be mobile terminal, such as mobile phone（Or be " honeycomb " phone）With the computer with mobile terminal, for example, it may be portable, pocket, hand-held, built-in computer or vehicle-mounted mobile device, they exchange language and/or data with wireless access network.For example, PCS (PCS, Personal Communication Service) phone, wireless phone, Session initiation Protocol（SIP) phone, WLL（WLL, Wireless Local Loop) stand, personal digital assistant（PDA, Personal Digital Assistant) etc. equipment.Wireless terminal is referred to as system, subscri er unit（Subscriber Unit), subscriber station（Subscriber Station), movement station（Mobile Station), mobile station（Mobile), distant station（Remote Station), access point（Access Point), remote terminal（Remote Terminal), access terminal（Access Terminal), user terminal（User Terminal), user agent（User Agent), user equipment（User Device) or subscriber's installation (User Equipment s

The base station being related in the application（For example, access point）, can refer in access network on interface in the air by one or more sectors and the equipment of wireless terminal communications.Base station can be used for IP packets mutually being changed the air frame received, and as the router between wireless terminal and the remainder of access network, the remainder of wherein access network may include Internet protocol（IP) network.Attribute management of the base station also tunable to air interface.For example, base station can be the base station in GSM or CDMA（BTS, Base Transceiver Station), can also be the base station in WCDMA（), NodeB it can also be the evolved base station in LTE（NodeB or eNB or e-NodeB, evolutional Node B), the application is not limited.

In addition, the terms " system " and " network " are often used interchangeably herein.The terms " and/or ", only a kind of incidence relation for describing affiliated partner, represents there may be three kinds of relations, for example, A and/or B, can be represented：Individualism A, while there is A and B, these three situations of individualism B.In addition, character "/" herein, typically represent forward-backward correlation object be it is a kind of " or " relation.

In various embodiments of the present invention, the handover operation being related to, its essence is the operation for separating the uplink of user equipment and downlink transfer.Therefore, accordingly, the handover request that is directed to, handoff response, The message such as switching command, can be the message for asking, responding and ordering execution uplink and downlink transfer lock out operation respectively.

The flow chart of switching method one embodiment that Fig. 1 provides for the present invention, this method can be performed by source base station, and such as Fig. 1, this method includes：

S101, source base station determine that the downlink transfer of user equipment is switched into first community or the uplink of user equipment is switched into first community.

5102nd, source base station is sent in handover request, handover request to the corresponding target BS of first community has the to be switched downlink transfer information of user equipment or uplink transmission information.

5103rd, source base station sends switching command to user equipment, have in switching command and the to be switched corresponding downlink resource configuration information of downlink transfer or the corresponding ascending resource configuration information of to be switched uplink is distributed for user equipment, so that user equipment keeps with the uplink of source base station and carry out user equipment after downlink transfer, or switching via target BS keeping the downlink transfer with source base station and carry out uplink via target BS after switching.

Wherein, downlink transfer information and downlink resource configuration information include being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, uplink transmission information and ascending resource configuration information include being used to indicate that the switching type for carrying out uplink switching is indicated.

In the present embodiment, the uplink of user equipment or downlink transfer are switched to target BS by source base station, so that one in the uplink and downlink transfer of the user equipment after handover cell serves provided by source base station, another cell serves provided by target BS, realize the uplink and downlink transfer separation of user equipment, the interference that reduction base station is caused to user equipment, so as to improve cell throughout and spectrum efficiency.

Optionally, the coverage of the first community that target BS is provided cell corresponding with the source base station for providing service to user equipment before switching has overlapping；Or, target BS has overlapping with the frequency of source base station.When coverage or frequency have overlapping, and when user equipment individually carries out up-downgoing communication with a base station, it can be disturbed by another base station.Separated by downstream transmission, i.e. user equipment and a base station keeps uplink, and downlink transfer is kept with another base station, can be on the premise of user's impression be ensured, the interference that effectively reduction base station is transmitted to it.

Under a kind of implement scene, source base station can be micro-base station, and micro-base station can be with finger low-power network node (low power node, LPN), either small base station or far end radio frequency head (remote radio head, RRH) etc..The Microcell that the current serving cell of user equipment provides for micro-base station（ pico cell ), User equipment carries out uplink communication and downlink communication with Microcell.Under the implement scene, source base station can determine to be switched to the downlink transfer of user equipment into the macrocell of macro base station offer from Microcell（Macro cell), i.e. the target BS of switching can be macro base station, the first community that the Target cell of switching provides for macro base station, and user equipment holding and the uplink of Microcell.

Optionally, in the case where source base station is micro-base station and target BS is the implement scene of macro base station, the first community that macro base station is provided can cover the corresponding cell of source base station for providing service before switching to user equipment, or macro base station can have overlapping with the frequency that micro-base station is provided.

Under another implement scene, source base station can also be macro base station, and the macrocell that the current serving cell of user equipment provides for macro base station, user equipment carries out uplink communication and downlink communication with macrocell.Under the implement scene, source base station can determine to be switched to the uplink of user equipment into the Microcell (pico cell) of micro-base station (micro base station) offer from macrocell, i.e., the target BS of switching can be micro-base station, the first community that the Target cell of switching provides for micro-base station, and user equipment keeps the downlink transfer with macrocell.

Optionally, in the case where source base station is macro base station and target BS is the implement scene of base station, the corresponding cell of source base station for providing service to user equipment before switching can cover the first community of micro-base station offer, or macro base station can have overlapping with the frequency that micro-base station is provided.

Source base station is determined after target BS, handover request can be sent to target BS, there is the to be switched downlink transfer information of user equipment in handover request, so as to user equipment holding and the uplink of source base station after switching and downlink transfer is being carried out via target BS；Or, there is the to be switched uplink transmission information of user equipment, so that user equipment keeps the downlink transfer with source base station and carries out uplink via target BS after handover in handover request.

Under another implement scene, micro-base station can be with（For example can be source base station or target BS）Downlink data is sent to user equipment with lower-wattage, user equipment can be with higher-wattage to macro base station（Can be for example target BS or source base station) send upstream data.It is also possible to interference of the base station to user equipment be reduced, so as to improve cell throughout and spectrum efficiency.It will be understood to those skilled in the art that the implement scene can apply to user equipment apart from micro-base station center than apart from macro base station center closer to scene, can also be applied to other scenes, will not be repeated here.

In the present embodiment, the downlink transfer information having in downlink resource configuration information and handover request includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated.Optionally, downlink transfer information can also include following a kind of or any number of combination：The RAB of at least one evolution（ Evolved Radio Access Bearer, E-RAB) mark, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks（Radio Resource Control, RRC) context (context) information, wherein RRC contextual informations can include cell-Radio Network Temporary Identifier C-RNTI information of downlink radio resource specific configuration information and/or user equipment.

Similar, the uplink transmission information and ascending resource configuration information having in handover request include being used to indicate that the switching type for carrying out uplink switching is indicated.Optionally, uplink transmission information can also include following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information, and wherein wireless heterogeneous networks context can be included：Cell-Radio Network Temporary Identifier (Cell Radio Network Temporary Identifier, C-RNTI) information of ascending wireless resource specific configuration information and/or user equipment.

It is understood that can also have other wireless resource configurations in handover request, and herein not --- enumerate.

It is used as a kind of feasible embodiment, target BS can distribute the to be switched corresponding downlink resource configuration information of downlink transfer or the corresponding ascending resource configuration information of to be switched uplink after the handover request of source base station transmission is received for user equipment.Under the implement scene, it is the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that user equipment is distributed that target BS can carry target BS in the handoff response for be sent to source base station.Source base station can be sent to user equipment can have the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment in switching command, the switching command.

It is used as another feasible embodiment, source base station can send radio resource allocation request message to target BS in advance, and the allocation request message is used for target BS and distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in first community for user equipment.That is, source base station can ask to distribute the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community of target BS for user equipment in advance, without switching over process.

Under the implement scene, source base station can be it is determined that the uplink of user equipment or downlink transfer be switched to after target BS, handover request is sent to target BS and sends switching command to user equipment, on the one hand the handover request can indicate that target BS uses the corresponding downlink resource of downlink transfer or the corresponding ascending resource of uplink, on the other hand can same switching command, be additionally operable to indicate whether to allow up Transmission is separated with downlink transfer.

Accordingly, source base station can also send media access control layer unit MAC CE to user equipment, be used to indicate whether to allow uplink and downlink transfer to separate.

It should be noted that for the slower user equipment of translational speed, after target BS distributes ascending resource or downlink resource for the user equipment in advance, source base station uplink can be carried out by switching command notifying user equipment and downlink transfer is separated；And for the faster user equipment of translational speed, after target BS distributes ascending resource or downlink resource for the user equipment in advance, source base station uplink can be carried out by MAC CE notifying user equipments and downlink transfer is separated, this embodiment is compared with the method by handover request and switching command, can reduce switching delay.

Optionally, target BS is that the downlink resource configuration information that user equipment is distributed includes following a kind of or any number of combination：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations.

SRB downstream arrangements information includes following a kind of or any number of combination：SRB marks, wireless spread-spectrum technology（Radio link control, RLC) information such as downstream arrangements, Logic Channel Identifier；The grouping system that DRB downstream arrangements information includes evolution carries mark（Eps-bearer Identity), DRB mark, grouped data ';Contraband poly- ten do view (packet data convergence protocol, PDCP) the descending tenth of the twelve Earthly Branches oneself put, wireless spread-spectrum technology（RLC) downstream arrangements, Logic Channel Identifier.

Wherein, PDCP downstream arrangements information includes following a kind of or any number of combination：Lost abandons timer configuration, the configuration of head compression protocol, for wireless spread-spectrum technology affirmation mode（RLC acknowledged mode, RLC AM) whether need to send PDCP state reports in switching, for wireless spread-spectrum technology Unacknowledged Mode（RLC unacknowledged mode, RLC UM) when the information such as PDCP sequence number length.

Wherein, wireless spread-spectrum technology downstream arrangements information includes following a kind of or any number of combination：The information such as descending RLC-AM configurations, descending RLC-UM configurations.Descending RLC-AM configurations include following a kind of or any number of combination：Timer configuration, the RLC state reports of reordering forbid the information such as timer configuration.Descending RLC-UM configurations include following a kind of or any number of combination：The information such as the configuration of sequence number length, the timer configuration that reorders.

Wherein, MAC downstream arrangements information includes following a kind of or any number of combination：It is discontinuous to receive (discontinuous reception:DRX) the information such as configuration, the configuration of secondary cell packet data inactivity timer. Wherein PDSCH configuration informations include following a kind of or any number of combination：Reference signal power configuration, reference signal are per resource element power and PDSCH is per information such as resource element power ratio configurations.

Similar, target BS is that the ascending resource configuration information that user equipment is distributed includes following a kind of or any number of combination：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

The up configuration informations of SRB include following a kind of or any number of combination：The information such as SRB marks, the up configuration of wireless spread-spectrum technology, Logic Channel Identifier, the up configuration of logic channel；The up configuration informations of DRB include following a kind of or any number of combination：The grouping system carrying mark of evolution（Eps-bearer Identity), the information such as DRB marks, the configuration of PDCP collocating uplink, the up configuration of wireless spread-spectrum technology, Logic Channel Identifier, the up configuration of logic channel.

Wherein the up configuration information of PDCP includes following a kind of or any number of combination：Lost abandons timer configuration, the configuration of head compression protocol, for wireless spread-spectrum technology affirmation mode（RLC AM) whether need to send PDCP state reports in switching, for wireless spread-spectrum technology Unacknowledged Mode（RLC UM) when the information such as PDCP sequence number length.

Wherein, the up configuration information of wireless spread-spectrum technology includes following a kind of or any number of combination：It is up

The information such as RLC-AM configurations, up RLC-UM configurations.Up RLC-AM configurations include following a kind of or any number of combination：Poll（Poll) the information such as retransmission timer configuration, the configuration of poll pdu number, the configuration of poll byte number, the configuration of RLC PDU maximum retransmissions.Descending RLC-UM configurations include the information such as sequence number length configuration.

Wherein, the up configuration information of logic channel includes following a kind of or any number of combination：The information such as priority of logical channels configuration, the configuration of bgical channel priority bit rate, logic channel group, token bucket algorithm parameter configuration.

Wherein, the up configuration informations of MAC include following a kind of or any number of combination：The information such as DRX configurations, up shared transmission channel configuration, the blunt announcement configurations of power headroom ^, the configuration of secondary cell packet data inactivity timer.

Wherein, PUSCH configuration informations include following a kind of or any number of combination：Frequency parameter configures, whether allows the information such as high order modulation configuration, uplink reference signals configuration.

Descending/up configuration informations of above-mentioned SRB/DRB/MAC, PDSCH/PUSCH configuration informations etc. are also applied for following embodiment unless otherwise instructed.

Source base station is sent in switching command, switching command to user equipment, and there is target BS to be that user equipment distributes the to be switched corresponding downlink resource configuration information of downlink transfer or to be switched uplink is corresponding Ascending resource configuration information.Wherein, downlink resource configuration information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

Optionally, in the switching command that source base station is sent to user equipment, sign can also be carried, sign can serve to indicate that user equipment and the newly-built downlink and the up-link between reservation and source base station for being used to carry to be switched downlink transfer of target BS, or for carrying the up-link and the downlink between reservation and the source base station of the to be switched uplink.Under this kind of scene, during switching, user equipment and up-link or downlink proper communication of the source base station by reservation, after the completion of switching, user equipment passes through the downlink after switching or up-link proper communication with target BS.

Optionally, above-mentioned sign can serve to indicate that user equipment and the newly-built downlink and the downlink between deletion and source base station for being used to carry to be switched downlink transfer of target BS, or for carrying the up-link of to be switched uplink and the up-link between deletion and source base station.Downlink between this kind of deletion user equipment and source base station or under the implement scene of up-link, then the up-link or downlink retained in source base station can continue to communication.

Optionally, above-mentioned sign can serve to indicate that user equipment and the newly-built downlink or up-link for being used to carry to be switched downlink transfer of target BS, and retain downlink and up-link between source base station.Retain in this kind of user equipment under the downlink between source base station and the implement scene of up-link, user equipment communicates with the uplink and downlink of source base station and can proceeded in handoff procedure, reduces service delay or business interruption time in handoff procedure.

Switching method provided in an embodiment of the present invention, the uplink of user equipment or downlink transfer are switched to target BS by source base station, so that one in the uplink and downlink transfer of the user equipment after handover cell serves provided by source base station, another cell serves provided by target BS.For example, it may be user equipment sends upstream data with relatively low power to micro-base station, and macro base station can send downlink data with stronger transmission power to user equipment.And for example, when user equipment apart from micro-base station center closer to when, micro-base station with lower-wattage to user equipment send downlink data, user equipment with higher-wattage to macro base station send upstream data.It is thus possible to interference of the base station to user equipment be reduced, so as to improve cell throughout and spectrum efficiency.

Present embodiments provide and a kind of the uplink of user equipment or downlink transfer are switched into target BS, so that the method that the uplink and downlink of user equipment are communicated from different base stations, this method is equally applicable to existing carrier type and new wave-carring type（New Carrier Type, NCT), new carrier wave class Type can be sent or not send master sync signal/auxiliary synchronous signals etc., and enhanced Physical Downlink Control Channel can be sent on NCT（E-PDCCH) or by other carrier waves by PDCCH or E-PDCCH cross scheduling is carried out.The flow chart for switching method another embodiment that Fig. 2 provides for the present invention, is that this method can be performed by target BS, such as Fig. 2, this method includes in upper embodiment difference：

S201, target BS receive the handover request that source base station is sent, and handover request has the to be switched downlink transfer information of user equipment or uplink transmission information.

S202, target BS determine to allow the downlink transfer of user equipment or uplink to switch to the first community that target BS is provided.

S203, target BS send the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment to source base station, so that user equipment keeps with the uplink of source base station and carries out downlink transfer via target BS after switching, or so as to after switching user equipment keep the downlink transfer between source base station and carry out uplink via target BS.

Wherein, downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

Under a kind of implement scene, source base station can be Kai base stations, target BS can be can have the to be switched downlink transfer information of user equipment in macro base station, the handover request that target BS is received, so that the downlink transfer of user equipment switches to macro base station by micro-base station.

Optionally, downlink transfer information can include following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information, and wherein wireless heterogeneous networks contextual information can be included：The cell of downlink radio resource specific configuration information and/or user equipment-Radio Network Temporary Identifier C-RNTI information.

Under another implement scene, source base station can be macro base station, target BS can be can have the to be switched uplink transmission information of user equipment in base station, the handover request that target BS is received, so that the uplink of user equipment switches to micro-base station by macro base station.

Similar, uplink transmission information can include following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information, and wherein wireless heterogeneous networks contextual information can be included：Ascending wireless resource specialized configuration Information and/or the cell of user equipment-Radio Network Temporary Identifier C-RNTI information.

In the present embodiment, target BS, which is received, can perform call access control after handover request, the first community of target BS offer is switched to the downlink transfer or uplink that determine whether user equipment.If target BS allows the downlink transfer of user equipment or uplink to switch to the first community that target BS is provided, target BS can send handoff response to source base station.

It is used as a kind of feasible embodiment, target BS determines to allow the downlink transfer of user equipment or uplink to switch to after the first community that target BS is provided, and can be user equipment the distribution to be switched corresponding downlink resource configuration information of downlink transfer or the corresponding ascending resource configuration information of to be switched uplink.It is the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that user equipment is distributed that target BS can carry target BS in the handoff response for be sent to source base station.

It is used as another feasible embodiment, source base station can send radio resource allocation request message to target BS in advance, under the implement scene, target BS can distribute the to be switched corresponding downlink resource configuration information of downlink transfer or the corresponding ascending resource configuration information of to be switched uplink in first community for user equipment.Under the implement scene, the handover request that target BS receives source base station transmission is used to indicate whether to allow uplink and downlink transfer to separate.

Optionally, target BS is that the downlink resource configuration information that user equipment is distributed can include following a kind of or any number of combination：SRB downstream arrangements information, DRB downstream arrangements information, MAC downstream arrangements information and PDSCH configuration informations.

Similar, target BS is that the ascending resource configuration information that user equipment is distributed can include following a kind of or any number of combination：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC and PUSCH configuration informations.

Switching method provided in an embodiment of the present invention, the uplink of user equipment or downlink transfer are switched to target BS by source base station, target BS can allow the uplink of user equipment or downlink transfer to switch to target BS, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The flow chart for switching method another embodiment that Fig. 3 provides for the present invention, is that this method can be performed by user equipment, such as Fig. 3, this method includes with remaining above-mentioned embodiment of the method difference： 5301st, user equipment, which is received, has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment in the switching command that source base station is sent, switching command.

5302nd, user equipment carries out downlink resource configuration according to downlink resource configuration information, and the uplink with source base station is kept after switching and downlink transfer is being carried out via target BS；Or ascending resource configuration is carried out according to ascending resource configuration information, the downlink transfer between source base station is kept after switching and uplink is carried out via target BS.

Wherein, downlink resource configuration information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

Under a kind of implement scene, source base station can be micro-base station, and the Microcell that the current serving cell of user equipment provides for micro-base station, user equipment carries out uplink communication and downlink communication with Microcell.Under the implement scene, source base station can determine to be switched to the downlink transfer of user equipment into the macrocell of macro base station offer from Microcell, i.e. the target BS of switching can be macro base station, the first community that the Target cell of switching provides for macro base station.

Under another implement scene, source base station can also be macro base station, and the macrocell that the current serving cell of user equipment provides for macro base station, user equipment carries out uplink communication and downlink communication with macrocell.Under the implement scene, source base station can determine to be switched to the uplink of user equipment into the Microcell of micro-base station offer from macrocell, i.e. the target BS of switching can be micro-base station, the first community that the Target cell of switching provides for micro-base station.

Under a kind of implement scene, user equipment can receive the switching command of source base station transmission, there is the corresponding downlink resource configuration information of to be switched downlink transfer distributed for user equipment in the switching command, downlink transfer is switched to by Target cell with instruction user equipment.

Under the implement scene, user equipment can carry out downlink resource configuration, specifically according to downlink resource configuration information：User equipment can reset the downlink of media access control MAC, rebuild the downlink of PDCP PDCP entities, the downlink of wireless spread-spectrum technology RLC entities is rebuild, the downlink transfer of PDCP entities and the downlink transfer of RLC entities is configured.Or, user equipment can also reset the downlink of media access control MAC, rebuild the downlink of PDCP PDCP entities, rebuild the downlink of wireless spread-spectrum technology RLC entities, configure PDCP entities uplink and downlink transfer, and RLC entities uplink and downlink transfer.

In the present embodiment, the above-mentioned downstream operation for MAC, RLC and PDCP, can be with Individually for needing to be switched to for the downlink of target BS.When user device configuration after the uplink of PDCP entities and RLC entities, if follow-up when switching the up-link between source base station, can directly it be enabled by the control signaling of MAC entity, without passing through RLC entities again.

Wherein for the downlink for resetting MAC, it can include：Stop at the timer of all MAC downstream arrangements of operation, empty all down mixing self-retransmission requests（Hybrid automatic repeat request, HARQ) Slow of process (process) rushes area, thinks that the TB received next time puts the operation such as Temporary Cell-Radio Network Temporary Identifier (temporary cell-radio network temporary identifier, Temporary C-RNTI) for first TB, if then translating for each descending HARQ processes.

Wherein for rebuild PDCP entities downlink, can according to downlink data transmission process of reconstruction for be mapped to RLC-AM DRB, be mapped to RLC-UM DRB and SRB perform corresponding operation respectively.

RLC UM entities, the receiving terminal of RLC AM entities, which are received, wherein for the downlink for rebuilding RLC entities, in being rebuild according to RLC performs corresponding operation respectively.

Above-mentioned reset MAC downlink, the downlink for rebuilding PDCP entities, the process for the downlink for rebuilding RLC entities are applied to following embodiment.

Optionally, sign can also be carried in the switching command that user equipment is received, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry to be switched downlink transfer of the target BS, and retains the up-link between the source base station.So that the uplink communication in handoff procedure between user equipment and source base station can proceed.

Further, the sign may be used to indicate that the user equipment and the newly-built downlink for being used to carry to be switched downlink transfer of the target BS, and retain downlink and up-link between the source base station.So that the downlink communication and uplink communication in handoff procedure between user equipment and source base station can proceed, business delay or service disconnection are reduced.

Optionally, PDCP entity divisions can be up PDCP entities and descending by user equipment

PDCP entities, up PDCP entities are corresponding with the second community that source base station is provided, and descending PDCP entities are corresponding with the first community that target BS is provided.Similar, RLC entity divisions can also be up RLC entities and descending RLC entities by user equipment, and up RLC entities are corresponding with the second community that source base station is provided, and descending RLC entities are corresponding with the first community that target BS is provided.Wherein, user equipment carries out downlink transfer via first community and target BS, and carries out up pass via second community and source base station It is defeated.Furthermore, source base station is micro-base station, and target BS is macro base station.

By by the up-downgoing of PDCP entities separate or RLC entity up-downgoings separate, user equipment can be rebuild and configure respectively to up PDCP entities and descending PDCP entities, up RLC entities and descending RLC entities in handoff procedure.Therefore, above-mentioned user equipment need not can make the uplink or downlink transfer continuation that do not switch communicate, improve switching efficiency and flexibility to whole PDCP entities and RLC volume reconstructions and configuration.In the present embodiment, up PDCP entities and descending PDCP entities, up RLC entities and descending RLC entities can correspond to the up entity and downstream entity of RLC Unacknowledged Modes (unacknowledged mode) respectively.

Optionally, user equipment can not also be up PDCP entities and descending PDCP entities PDCP entity divisions.Specifically, user equipment can be corresponding with the second community that source base station is provided by the uplink of PDCP entities, and the downlink transfer of PDCP entities is corresponding with the first community that target BS is provided.Similar, user equipment can not also be up RLC entities and descending RLC entities RLC entity divisions.Specifically, user equipment can be corresponding with the second community that source base station is provided by the uplink of RLC entities, and the downlink transfer of RLC entities is corresponding with the first community that target BS is provided.Wherein, user equipment carries out downlink transfer via first community and target BS, and carries out uplink via second community and source base station.Furthermore, source base station is micro-base station, and target BS is macro base station.By individually that the downlink transfer of PDCP entities or RLC entities is corresponding with target BS, or it is individually that the uplink of PDCP entities or RLC entities is corresponding with source base station, user equipment equally can be rebuild and configure respectively to uplink or downlink transfer in handoff procedure, reduction signaling consumption and implementation complexity.

Under another implement scene, user equipment, which is received, can carry the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment in the switching command of source base station transmission, uplink is switched into Target cell with instruction user equipment.

Under the implement scene, user equipment can carry out ascending resource configuration according to ascending resource configuration information, specifically：User equipment can reset MAC up-link, the up-link of PDCP entities can be rebuild, the up-link of wireless spread-spectrum technology RLC entities can be rebuild, the uplink of PDCP entities and the uplink of RLC entities can be configured, the up-link of PDCP entities is rebuild.Or, user equipment can also reset the up of MAC, the up-link of PDCP entities can be rebuild, the up-link of wireless spread-spectrum technology RLC entities can be rebuild, rebuild the up-link of PDCP entities, uplink and the downlink transfer of PDCP entities are configured, and configures uplink and the downlink transfer of RLC entities. Wherein for the up-link for resetting MAC, it can include：Stop at the timer of the up configurations of all MAC of operation, think that the time adjusts timer（Time alignment timer) new data instruction overtime, that all ascending HARQ courses are set（New data identifier, NDI it is) 0, if ongoing random access procedure then stops ongoing random access procedure, if allocated Stochastic accessing Special leader Ze Lost abandon allocated Stochastic accessing Special leader, if triggered dispatch request process then cancels triggered dispatch request process, zone state reporting process is rushed if triggered Slow rushes zone state reporting process and then cancels triggered Slow, if triggered power headroom reporting (PHR) process then cancels triggered power headroom reporting (PHR) process, then translated if allocated Temporary Cell-Radio Network Temporary Identifier and put Temporary Cell-Radio Network Temporary Identifier（Temporary C-RNTI) etc. operation.

Wherein for rebuild PDCP entities up-link, according to transmitting uplink data process of reconstruction for be mapped to RLC-AM DRB, be mapped to RLC-UM DRB and SRB perform corresponding operation respectively.

Wherein for the up-link for rebuilding RLC entities, the description that RLC sends RLC UM entities in rebuilding, the transmitting terminal of RLC AM entities is related performs corresponding operation respectively.

Above-mentioned reset MAC up-link, the up-link for rebuilding PDCP entities, the process for the up-link for rebuilding RLC entities are applied to following embodiment.

Optionally, sign can also be carried in the switching command that user equipment is received, the sign is used to indicate the user equipment and the newly-built up-link for being used to carry to be switched uplink of the target BS, and retains the downlink between the source base station.So that the downlink communication in handoff procedure between user equipment and source base station can proceed.

Further, the sign may be used to indicate that the user equipment and the newly-built up-link for being used to carry to be switched uplink of the target BS, and retain downlink and up-link between the source base station.So that the downlink communication and uplink communication in handoff procedure between user equipment and source base station can proceed, business delay or service disconnection are reduced.

Optionally, PDCP entity divisions can also be up PDCP entities and descending PDCP entities by user equipment, and up PDCP entities are corresponding with the first community that target BS is provided, and descending PDCP entities are corresponding with the second community that source base station is provided.Similar, RLC entity divisions can also be up RLC entities and descending RLC entities by user equipment, and up RLC entities are corresponding with the first community that target BS is provided, and descending RLC entities are corresponding with the second community that source base station is provided.Wherein, user equipment is passed through Uplink is carried out by first community and target BS, and downlink transfer is carried out via second community and source base station.Furthermore, source base station is macro base station, and target BS is micro-base station.So as to be rebuild and configure respectively to up PDCP entities and descending PDCP entities, up RLC entities and descending RLC entities in handoff procedure；Whole PDCP entities and RLC volume reconstructions and configuration can need not be made the uplink or downlink transfer continuation that do not switch communicate, improve switching efficiency and flexibility.

Switching method provided in an embodiment of the present invention, the uplink of user equipment or downlink transfer are switched to target BS by source base station, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The flow chart for switching method another embodiment that Fig. 4 provides for the present invention, such as Fig. 4, it is micro-base station that the present embodiment provides source base station for above method embodiment, and target BS is the detailed process of switching method under the implement scene of macro base station, and this method includes：

S401, UE send measurement just blunt announcement (measurement report) to Kai fiduciary points.

S402, micro-base station determine to switch to UE downlink transfer into the first community of macro base station from micro-base station according to measurement report.

For example, public reference signal (the common reference signal for the first community that micro-base station can include according to measurement report, ) or channel state information reference signals (channel-State information reference signal CRS, CSI-RS Reference Signal Received Power (reference signal receiving power), RSRP) measurement result is more than the CRS or CSI-RS of the second community of the micro-base station of UE current services RSRP measurement results, or the measurement result of above-mentioned first community exceed certain thresholding when, it is determined that UE downlink transfer to be switched to the first community of macro base station from micro-base station.

S403, micro-base station send to macro base station and downlink transfer information are carried in handover request, the handover request.Wherein, downlink transfer information can include being used to indicate that the switching type for carrying out downlink transfer switching is indicated.

Optionally, downlink transfer information can also include following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information, cell-Radio Network Temporary Identifier C-RNTI information that wherein wireless heterogeneous networks contextual information can be comprising downlink radio resource specific configuration information and/or user equipment.

It is understood that can also have ascending wireless resource specific configuration information etc. in handover request, Herein not --- enumerate.

5404th, macro base station performs wireless call access control（Radio admission control, RAC) process, it is allowed to UE downlink transfer is switched to the first community of macro base station offer.

Specifically, above-mentioned call access control procedural representation macro base station is confirmed whether to allow switching.For example, when the load of macro base station is higher, macro base station can refuse handover request.Above-mentioned call access control process occurs before a random access.If macro base station have rejected handover request, source base station needs to select other base stations to switch over, and Stochastic accessing will not occur in this macro base station.

5405th, macro base station is UE allocation of downlink resources in first community.

It is above-mentioned to can be understood as the corresponding frequency range of first community in first community in the present embodiment.Above-mentioned downlink resource can be understood as the corresponding downlink resource of first community.

Specifically, macro base station can distribute C-RNTI for UE, and according to each E-RAB service quality (quality of service, QoS) parameter configuration downlink resource.Or macro base station can be according to E-RAB qos parameter configurating downlink resource and ascending resource, but downlink resource configuration information can be used only in UE.

Macro base station is that the downlink resource that UE is distributed can include following a kind of or any number of combination：SRB downstream arrangements information, DRB downstream arrangements information, MAC downstream arrangements information and PDSCH configuration informations.

Wherein, Signaling Radio Bearer（SRB) downstream arrangements information can include following a kind of or any number of combination：SRB is identified, RLC downstream arrangements, Logic Channel Identifier configuration information etc..DRB downstream arrangements information can include following a kind of or any number of combination：The grouping system carrying mark of evolution, DRB marks, PDCP downstream arrangements, RLC downstream arrangements, Logic Channel Identifier configuration information etc..Medium education（MAC) downstream arrangements information can include following a kind of or any number of combination：It is discontinuous to receive configuration information, SCell packet data inactivity timer configuration informations etc..

It is understood that the downlink resource that macro base station, which is UE, to be distributed can also include following a kind of or any number of combination：Channel quality is indicated（CQI) report configuration information, aerial information etc..

In addition, macro base station can be unworthy of putting Physical Uplink Control Channel and Physical Uplink Shared Channel resource, or, macro base station can be configured but without using Physical Uplink Control Channel and Physical Uplink Shared Channel resource.

5406th, macro base station is sent in handoff response, handoff response to micro-base station, and there is macro base station to be the corresponding downlink resource configuration information of to be switched downlink transfer that UE is distributed.

One kind in following information or any number of combination can also be carried in handoff response：The corresponding descending general packet radio service of at least one E-RAB ID, at least one E-RAB（GPRS) tunnel protocol port（DL GTP tunnel endpoint), macro base station to micro-base station transparent vessel etc.. Wherein, macro base station includes switching command into micro-base station transparent vessel（Handover command, that is, include the Radio Resource connection reconfiguration message (RRC connection reconfiguration) of mobile control information (mobility Control Info)) the required radio resource parameter for being allocated to UE.

5407th, micro-base station sends switching command to UE（Handover command), have in the switching command and the to be switched corresponding downlink resource configuration information of downlink transfer is distributed for UE.

Wherein, downlink resource configuration information can include being used to indicate that the switching type for carrying out downlink transfer switching is indicated.

Optionally, there can also be sign in switching command, sign can serve to indicate that user equipment and macro base station are newly-built for carrying the downlink of to be switched downlink transfer and the downlink between reservation and micro-base station and up-link；Or, sign may be used to indicate that user equipment and the newly-built downlink and the downlink between deletion and micro-base station for being used to carry to be switched downlink transfer of macro base station；Or, sign may be used to indicate that user equipment and the newly-built downlink and the up-link between reservation and micro-base station for being used to carry to be switched downlink transfer of macro base station.

5408th, micro-base station sends downlink grouped data convergence protocol service data unit (packet data convergence protocol service data unit, PDCP SDU) bad ' No. J of 々 sequences to macro base station（Sequence number, SN) information and forwarding do not receive rlc layer confirmation descending PDCP SDU.

Wherein, at least one descending E-RAB PDCP sequence number informations can be included in descending PDCP SDU sequence number information, the sequence number that macro base station will be distributed to descending new PDCP SDU after switching for indicating downlink.

5409th, UE carries out downlink resource configuration according to downlink resource configuration information.

UE carries out downlink resource configuration, for details, reference can be made to the embodiment of the method for corresponding diagram 3, will not be repeated here.

In the present embodiment, UE is received after switching command, descending synchronous with macro base station.Specific resource distribution process can be found in the embodiment of the method for corresponding diagram 3, will not be repeated here.

As a kind of feasible embodiment, UE is descending to MAC to be resetted, and rebuilds the descending of PDCP entities, rebuilds the descending of RLC entities；Configure the corresponding downlink resource of the downlink transfer of downlink transfer and RLC entities of PDCP entities.

As another feasible embodiment, UE is descending to MAC to be resetted, and rebuilds the descending of PDCP entities, rebuilds the descending of RLC entities；Configure uplink and the downlink transfer of PDCP entities Corresponding downlink resource and ascending resource, and the uplink of RLC entities and the corresponding downlink resource of downlink transfer and ascending resource.

Micro-base station sends the sign having in the switching command of switching command to UE and is used under instruction user equipment and the newly-built implement scene for being used to carry the downlink of to be switched downlink transfer and retain the downlink between user equipment and micro-base station and up-link of macro base station in S407, then UE descending to MAC need not reset, the existing PDCP entities of holding are descending and RLC entities carry out downlink transfer, the PDCP entities and RLC entities of downstream transmission are carried out with micro-base station need not re-establish and reconfigure, only need to set up and configure the newly-increased PDCP entities between macro base station and RLC entities carry out downlink resource corresponding to downlink transfer, and configuration MAC layer downlink transfer parameter.The reconstruction of above-mentioned PDCP entities and RLC entities and reconfigure the reconstruction for being related to SRB and DRB and reconfigure.The schematic diagram that UE is interacted with source base station and target BS in handoff procedure can be as shown in Figure 7.

In addition, UE can also carry out the configuration such as Physical Downlink Shared Channel.

Optionally, PDCP entity divisions can be up PDCP entities and descending PDCP entities by user equipment, and up PDCP entities are corresponding with the second community that source base station is provided, and descending PDCP entities are corresponding with the first community that target BS is provided.

Similar, RLC entity divisions can also be up RLC entities and descending RLC entities by user equipment, and up RLC entities are corresponding with the second community that source base station is provided, and descending RLC entities are corresponding with the first community that target BS is provided.

Specifically, as shown in figure 5, UE PDCP entities can be separated into up PDCP entities and descending PDCP entities（Correspond respectively to second community and first community）, UE RLC AM entities can be separated into up RLC AM entities and descending RLC AM entity two parts（Correspond respectively to second community and first community）, UE RLC UM entity separations are descending RLC UM entities and up RLC UM entity two parts（Correspond respectively to second community and first community）.

It should be noted that during UE performs above-mentioned configuration, up PDCP entities, up RLC entities are without rebuilding and reconfiguring, and MAC is up without the operation such as reset, and therefore, the uplink communication process of UE and micro-base station is proceeded.

Wherein, to S408 and S409 execution sequence in no particular order, both can also be carried out simultaneously.S410, UE send Radio Resource to micro-base station and reconfigure completion（RRC Connection Reconfiguration Complete) message.

Because up-link is maintained at source base station, therefore, UE does not send Radio Resource to target BS and matched somebody with somebody again Completion message is put, but sends Radio Resource to source base station and reconfigures completion message.

S411, Kai base station send descending switching to macro base station and completed.

After handover success, it can determine whether to delete source base station by source base station to UE down wireless link.If source base station deletes source base station to UE down wireless link, the schematic diagram that then UE is interacted with source base station and target BS after cell switching can be as shown in Figure 6, if source base station does not delete source base station to UE down wireless link, the schematic diagram that UE is interacted with source base station and target BS after cell switching can be as shown in Fig. 7.

The switching method that the present embodiment is provided, goes for various heterogeneous network scenes, as shown in figure 8, a kind of implement scene can be：The macrocell that macro base station is provided（Macro cell) and low power nodes (LPN) provide Microcell（Pico cell) focus covering.Wherein, Pico cell can configure cell range extension（Cell range extension, CRE) or CRE is not configured, configure CRE hour offsets（Bias) configuration can be 6dB or 9dB or higher.The first community that macro base station is provided can have different Physical Cell Identifier from the second community that micro-base station is provided（) or identical Physical Cell Identifier PCI.For the UE in macro base station and micro-base station edge, enhanced interference coordination can be used（Enhanced Inter cell interference coordination, elCIC) or the reduction interference of CoMP technologies.There is RRC to be connected the UE in RRC connection status for micro-base station central area and micro-base station, when moving to reach the CRE scopes of micro-base station from micro-base station central area to macro base station, then micro-base station can determine UE downlink transfer being switched to macro base station.

The switching method that the present embodiment is provided, can be applicable to heterogeneous network carrier aggregation（Carrier aggregation, CA) scene, for example, macro base station and micro-base station provide f1 and f2 two frequencies respectively, the UE for collectively covering region in macro base station and micro-base station has polymerize the f2 that the Π and micro-base station of macro base station offer are provided.Micro-base station can configure CRE in f2 or not configure CRE, configure CRE hour offsets（Bias) configuration can be 6dB or 9dB or higher.

In addition, it is necessary to explanation, the UE of the small area edge provided for the macrocell that macro base station is provided with micro-base station, UE sets up Radio Link in descending and macrocell, Radio Link is set up in up and Microcell, in descending and macro-cell communication, in up and micro-cell communication.If UE is moved to macro base station and removed CRE scopes into the only coverage of macro base station, UE uplink can be switched to macro base station by micro-base station, so that UE uplink and downlink are communicated with macro base station.Source base station is micro-base station, and the target BS of switching is macro base station, and descending PDCP entities and up PDCP entities can be merged into a two-way PDCP entity by UE, it is also possible to by descending RLC AM entities and up RLC AM entities merge into a two-way RLC AM entity.The process and S401-S411 process that UE uplink is switched into macro base station are similar, will not be repeated here.

Switching method provided in an embodiment of the present invention, the uplink of user equipment or downlink transfer are switched to target BS by source base station, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, it can realize that user equipment sends upstream data with relatively low power to micro-base station, and macro base station can send downlink data with stronger transmission power to user equipment, so as to improve cell throughout and spectrum efficiency.The flow chart for switching method another embodiment that Fig. 9 provides for the present invention, such as Fig. 9, for above-mentioned each method embodiment, source base station is present embodiments provided for macro base station, target BS is the detailed process of switching method under the implement scene of micro-base station, and this method includes：

S901, UE send measurement just blunt announcement (measurement report) to grand fiduciary point.

5902nd, macro base station determines to be switched to UE uplink into the first community of micro-base station from macro base station according to measurement report.

For example, macro base station can be according to the CRS or CSI-RS of micro-base station descending path loss

(downlink pathloss) measurement result is more than the CRS or CSI-RS of macro base station descending path loss (downlink pathloss) measurement result, or the CRS or CSI-RS of micro-base station descending path loss (downlink pathloss) measurement result exceed certain thresholding, it is determined that UE uplink to be switched to the first community of micro-base station from micro-base station；Power headroom reporting (PHR) (the power headroom that macro base station can be reported according to UE,) or the UE mode such as the measurement of up path loss or detection reference signal (sounding reference signal, SRS) measurement estimates UE descending path loss PHR.

5903rd, macro base station is sent to micro-base station has uplink transmission information in handover request, the handover request.Wherein, uplink transmission information can include being used to indicate that the switching type for carrying out uplink switching is indicated.

Optionally, uplink transmission information can also include following a kind of or any number of combination：At least one

E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information, and wherein wireless heterogeneous networks contextual information can be included：The cell of ascending wireless resource specific configuration information and/or user equipment-Radio Network Temporary Identifier C-RNTI information.

It is understood that can also have downlink radio resource specific configuration information etc. in handover request, and herein not --- enumerate. 5904th, micro-base station performs call access control process, it is allowed to which UE uplink is switched to the first community of micro-base station.

5905th, Kai base stations are that UE distributes ascending resource in first community.

Specifically, micro-base station can distribute C-RNTI for UE, and according to each E-RAB qos parameter collocating uplink resource.Or micro-base station can be according to E-RAB qos parameter configurating downlink resource and ascending resource, but ascending resource configuration information can be used only in UE.

Micro-base station is that the ascending resource that UE is distributed can include following a kind of or any number of combination：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC and PDSCH configuration informations.

Wherein, Signaling Radio Bearer（SRB) up configuration information can include following a kind of or any number of combination：SRB is identified, the up configurations of RLC, Logic Channel Identifier, up configuration information of logic channel etc..The up configuration informations of DRB can include following a kind of or any number of combination：The grouping system carrying mark of evolution, DRB marks, the up configurations of PDCP, the up configurations of RLC, Logic Channel Identifier, the up configuration information of logic channel etc..The up configuration informations of MAC can include following a kind of or any number of combination：Up shared transmission channel（UL-SCH) configuration information, time adjustment timer configuration information, power headroom reporting (PHR) configuration information etc..

It is understood that the ascending resource that micro-base station, which is UE, distributes can also include following a kind of or any number of combination：Ascending physical signal shared channel, ascending physical signal control channel, uplink power control parameter, detection reference signal parameter（), SRS aerial information etc..

In addition, Kai base stations can be unworthy of putting Physical Downlink Control Channel and Physical Downlink Shared Channel resource, or, micro-base station can be configured but without using Physical Downlink Control Channel and Physical Downlink Shared Channel resource.

5906th, micro-base station is sent in handoff response, handoff response to macro base station, and there is micro-base station to be the corresponding ascending resource configuration information of to be switched uplink that UE is distributed.

One kind in following information or any number of combination can also be carried in switching response message：The corresponding up general packet radio service of at least one E-RAB ID, at least one E-RAB（GPRS) tunnel protocol port（UL GTP tunnel endpoint), micro-base station to macro base station transparent vessel（ transparent contaiinsr ) .

Wherein, micro-base station includes switching command (handover command) to macro base station transparent vessel, needs to be allocated to UE radio resource parameter for example, the Radio Resource connection reconfiguration message of mobile control information is included.

S907, macro base station send switching command (handover command), the switching command to UE In have micro-base station be UE distribute the corresponding ascending resource configuration information of to be switched uplink.Wherein, ascending resource configuration information can include being used to indicate that the switching type for carrying out uplink switching is indicated.

Optionally, sign can also be carried in switching command, sign can serve to indicate that user equipment and micro-base station is newly-built is used to carry the up-link of to be switched uplink and retains the up-link between user equipment and macro base station and downlink；Or, sign may be used to indicate that user equipment and macro base station it is newly-built be used for carry to be switched uplink up-link and delete the up-link between user equipment and micro-base station；Or, sign may be used to indicate that user equipment and the newly-built up-link and the downlink between reservation and macro base station for being used to carry to be switched uplink of micro-base station.

S908, macro base station send up PDCP SDU sequence number to micro-base station（SN) the up PDCP SDU that information and forwarding are successfully received.

Wherein, up PDCP SDU sequence number information can include the sequence number for the up PDCP SDU that mono- Lost loses.

S909, UE carry out ascending resource configuration according to ascending resource configuration information.

UE carries out the description that ascending resource configuration for details, reference can be made to Fig. 3 embodiments, will not be repeated here.Specifically：UE is received after switching command, up synchronous with micro-base station.Realized synchronously for example, up timing advance value can be sent directly to UE by random access procedure or micro-base station.

As a kind of feasible embodiment, UE is up to MAC to be resetted, and rebuilds the up of PDCP entities, rebuilds the up of RLC entities；Configure the corresponding ascending resource of the uplink of uplink and RLC entities of PDCP entities.

As another feasible embodiment, UE is up to MAC to be resetted, and rebuilds the up of PDCP entities, rebuilds the up of RLC entities；Configure uplink and the corresponding ascending resource of downlink transfer and the downlink resource of PDCP entities, and the uplink of RLC entities and the corresponding ascending resource of downlink transfer and downlink resource.

Macro base station, which sends the sign carried in the switching command of switching command to UE, in S907 is used for instruction user equipment and the newly-built up-link for being used to carry to be switched uplink of micro-base station, and retain under the implement scene of the downlink between user equipment and macro base station and up-link, UE up to MAC need not reset, SRB and DRB PDCP entities originally is up up with RLC entities, the PDCP entities for carrying out the SRB and DRB of downstream transmission with macro base station are up and RLC entities are up need not re-establish and reconfigure, only need to set up and configure newly-increased SRB's and DRB PDCP entities and the corresponding ascending resource of RLC entity uplink, configure MAC layer uplink transmission parameter.The schematic diagram that UE is interacted with source base station and target BS in handoff procedure can be as shown in figure 11.

In addition, UE can also carry out the configuration such as Physical Uplink Shared Channel.

Optionally, PDCP entity divisions can be up PDCP entities and descending PDCP entities by user equipment, and descending PDCP entities are corresponding with the second community that source base station is provided, and up PDCP entities are corresponding with the first community that target BS is provided.

Similar, RLC entity divisions can also be up RLC entities and descending RLC entities by user equipment, and descending RLC entities are corresponding with the second community that source base station is provided, and up RLC entities are corresponding with the first community that target BS is provided.It should be noted that, during UE performs above-mentioned configuration, because descending PDCP entities, descending RLC entities are without rebuilding and reconfiguring, MAC is descending without the operation such as reset, therefore, the downlink communication process between UE and micro-base station is proceeded.

Wherein, to S908 and S909 execution sequence in no particular order, both can also be carried out simultaneously.

5910th, UE sends Radio Resource to micro-base station and reconfigures completion（RRC connection reconfiguration complete) message.

Because up-link is switched to target BS, therefore, UE sends Radio Resource to target BS and reconfigures completion message.

5911st, macro base station sends up switching to micro-base station and completed.

The switching method that the present embodiment is provided, is equally applicable to various heterogeneous network scenes, and the heterogeneous network scene provided with the embodiment shown in Fig. 4 is similar, will not be repeated here.It should be noted that in above-described embodiment that Fig. 1-Fig. 9 is provided, user equipment is in RRC connection status（), RRC_connected RRC is connected with source base station before the handover.Or, user equipment may be at idle condition（RRCJdle), under this implement scene, the initiation random access request that user equipment can be into macro base station and micro-base station is connected with setting up RRC with macro base station or micro-base station.For the macrocell provided positioned at macro base station（Macro cell) with micro-base station provide Microcell（Pico cell) edge and in RRCJdle states UE, UE can select macro cell or pico cell perform random access procedure enter RRC_Connected states.If UE first accesses macro base station, it can be determined UE uplink being switched to micro-base station according to UE measurement report as the macro base station of source base station, i.e. perform the handoff procedure of embodiment illustrated in fig. 9.If UE first accesses micro-base station, it can be determined UE downlink transfer being switched to according to UE measurement report as the micro-base station of source base station Macro base station, i.e. perform the handoff procedure of embodiment illustrated in fig. 4.

In addition, it is necessary to explanation, the UE of the small area edge provided for the macrocell that macro base station is provided with micro-base station, UE sets up Radio Link in descending and macrocell, Radio Link is set up in up and Microcell, in descending and macro-cell communication, in up and micro-cell communication.If UE is moved to micro-base station and removed CRE scopes into the only coverage of micro-base station, UE downlink transfer can be switched to micro-base station by macro base station, so that UE uplink and downlink are communicated with micro-base station.Source base station is macro base station, the target BS of switching is micro-base station, descending PDCP entities and up PDCP entities can be merged into a two-way PDCP entity by UE, it is also possible to which descending RLC AM entities and up RLC AM entities are merged into a two-way RLC AM entity.The process and S901-S911 process that UE downlink transfer is switched into micro-base station are similar, will not be repeated here.

After handover success, it can determine whether to delete source base station by source base station to UE uplink radio link.If source base station deletes source base station to UE uplink radio link, the schematic diagram that then UE is interacted with source base station and target BS after cell switching can be as shown in Figure 10, if source base station does not delete source base station to UE uplink radio link, the schematic diagram that UE is interacted with source base station and target BS after cell switching can be as shown in figure 11.

In Fig. 4 and embodiment illustrated in fig. 9, for the UE of the small area edge provided in the macrocell that macro base station is provided with micro-base station, UE sets up Radio Link in descending and macrocell, Radio Link is set up in up and Microcell, in descending and macro-cell communication, under the up implement scene with micro-cell communication, the DRB of user equipment can be respectively by macro base station and micro-base station with carrying on core net SGW S1-U interface with S1（S1 bearer) set up mapping relations, the RAB E-RAB of evolution is the carrying between UE and SGW, including two sections of S1 bearer between the Data Radio Bearer DRB and base station and SGW between UE and base station, DRB and S1 bearer --- correspondence, so as to establish the data link between UE and SGW, as shown in figure 12.The process for setting up mapping is briefly described below：Mobile management entity (mobility management entity, MME) and eNB set up E-RAB when setting up S1 interfaces, include E-RAB identification informations；It is DRB distribution DRB marks, so as to set up mapping relations between DRB and S1 bearer comprising E-RAB marks in increase DRB information when eNB is UE allocation radio resources.Or, agency can also be used as by one in macro base station and micro-base station, with setting up mapping relations on core net SGW S1-U interface with S1 bearer, macro base station sets up above-mentioned mapping relations with base station by interacting E-RAB marks and DRB identification informations, as shown in figure 13. Switching method provided in an embodiment of the present invention, the uplink of user equipment or downlink transfer are switched to target BS by source base station, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, it can realize that user equipment sends upstream data with relatively low power to micro-base station, and macro base station can send downlink data with stronger transmission power to user equipment, so as to improve cell throughout and spectrum efficiency.The structural representation of base station one embodiment that Figure 14 provides for the present invention, the base station can perform the method for any embodiment of the present invention, and the base station is, for example, source base station or other similar equipment having across station coordination function；As shown in figure 14, the base station includes：Determining unit 11 and transmitting element 12;Determining unit 11, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community；

Transmitting element 12, for sending handover request to the corresponding target BS of first community, handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Transmitting element 12 is additionally operable to, switching command is sent to user equipment, switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment, so as to user equipment holding and the uplink of base station after switching and user equipment after downlink transfer, or switching is carried out via target BS to keep the downlink transfer between base station and via target BS progress uplink；

Optionally, determining unit 11 can be specifically for：When base station is micro-base station, and target BS is macro base station, it is determined that the downlink transfer of user equipment to be switched to the first community that service is provided by macro base station；Or, when base station is macro base station, and target BS is micro-base station, it is determined that the uplink of user equipment to be switched to the first community that service is provided by micro-base station.

Optionally, when base station is micro-base station, and target BS is when being macro base station, provides the corresponding cell in base station of service before first community covering switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided；

When base station is macro base station, and target BS is when being micro-base station, provides the corresponding MPS process first community in base station of service before switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided. Optionally, transmitting element 12 can be also used for：Radio resource allocation request message is sent to target BS, allocation request message is used for target BS and distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in first community for user equipment.

Optionally, transmitting element 12 can be also used for：Media access control layer control unit MAC CE, MAC CE are sent to user equipment to be used to indicate whether to allow uplink and downlink transfer to separate.

Optionally, downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or user terminal-Radio Network Temporary Identifier C-RNTI information；

Uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or user terminal.

Optionally, it is that the downlink resource configuration information that user equipment is distributed includes following a kind of or any number of combination：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；Include following a kind of or any number of combination for the ascending resource configuration information that user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

Optionally, sign is also included in switching command；Sign is used for instruction user equipment and the newly-built downlink and the up-link between reservation and base station for being used to carry to be switched downlink transfer of target BS；Or,

Sign is used for instruction user equipment and the newly-built up-link and the downlink between reservation and base station for being used to carry to be switched uplink of target BS；Or,

Sign is used for instruction user equipment and the newly-built downlink for being used to carry to be switched downlink transfer of target BS or the newly-built up-link for being used to carry to be switched uplink, and retains up-link and downlink between base station.

The base station that the present embodiment is provided, the execution equipment of the switching method provided for the present invention, its detailed process for performing switching method can be found in the associated description in the corresponding embodiments of the method for Fig. 1-Figure 13, repeat no more. The base station that the present embodiment is provided is source base station, according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, so that one in the uplink and downlink transfer of the user equipment cell server provided by source base station, another cell serves provided by target BS.For example, it may be user equipment sends upstream data with relatively low power to micro-base station, and macro base station can send downlink data with stronger transmission power to user equipment.And for example, when UE apart from Wei Zhan centers closer to when, micro-base station with lower-wattage to user equipment send downlink data, user equipment with higher-wattage to macro base station send upstream data.It is thus possible to interference of the base station to UE be reduced, so as to improve cell throughout and spectrum efficiency.

Present embodiments provide it is a kind of the uplink of user equipment or downlink transfer are switched into target BS so that the method that the uplink and downlink of user equipment are communicated from different base stations, this method is applied to existing carrier type and new wave-carring type（New carrier type, NCT), new wave-carring type can be sent or not send master sync signal/auxiliary synchronous signals etc., and enhanced Physical Downlink Control Channel can be sent on NCT（E-PDCCH) or by other carrier waves by PDCCH or E-PDCCH cross scheduling is carried out.The structural representation for another embodiment of base station that Figure 15 provides for the present invention, the base station can perform the method for any embodiment of the present invention, and the base station is, for example, target BS or other similar equipment having across station coordination function；As shown in figure 15, the base station includes：Receiving unit 21, determining unit 22 and transmitting element 23;

Receiving unit 21, the handover request message for receiving source base station transmission, handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Determining unit 22, for determining to allow the downlink transfer of user equipment or uplink to switch to the first community that base station is provided；

Transmitting element 23, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for user equipment to source base station, so that user equipment keeps with the uplink of source base station and carries out downlink transfer via base station after switching, or so as to after switching user equipment keep the downlink transfer between source base station and carry out uplink via base station；Wherein, downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

Optionally, when source base station be micro-base station, and base station be macro base station when, first community covering switching before The corresponding cell of source base station of service is provided to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided；

When source base station is macro base station, and base station is when being micro-base station, provides the corresponding MPS process first community of source base station of service before switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided.

Optionally, receiving unit 21, it can be also used for receiving the radio resource allocation request message that source base station is sent, radio resource allocation request message is used for base station and distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in first community for user equipment.

Optionally, downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or user equipment-Radio Network Temporary Identifier C-RNTI information；

Uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or user equipment.

The base station that the present embodiment is provided, the execution equipment of the switching method provided for the present invention, its detailed process for performing switching method can be found in the associated description in the corresponding embodiments of the method for Fig. 1-Figure 13, repeat no more again.

The base station that the present embodiment is provided is target BS, source base station is according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, target BS can allow the uplink of user equipment or downlink transfer to switch to target BS, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The structural representation of user equipment one embodiment that Figure 16 provides for the present invention, as shown in figure 16, the user equipment includes：Receiving unit 31 and dispensing unit 32;

Receiving unit 31, the switching command for receiving source base station transmission, switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment； Dispensing unit 32, the uplink with source base station is kept for carrying out downlink resource configuration according to downlink resource configuration information, after switching and downlink transfer is carried out via target BS；Or ascending resource configuration is carried out according to ascending resource configuration information, the downlink transfer between source base station is kept after switching and uplink is carried out via target BS；

Optionally, sign is also included in switching command；Sign is used for instruction user equipment and the newly-built downlink and the up-link between reservation and source base station for being used to carry to be switched downlink transfer of target BS；Or

Sign is used for instruction user equipment and the newly-built up-link and the downlink between reservation and source base station for being used to carry to be switched uplink of target BS；Or,

Sign is used for instruction user equipment and the newly-built downlink for being used to carry to be switched downlink transfer of target BS or the newly-built up-link for being used to carry to be switched uplink, and retains up-link and downlink between source base station.

Optionally, the user equipment also includes division unit 33, is used for：It is up PDCP entities and descending PDCP entities by PDCP entity divisions, up PDCP entities are corresponding with the second community that source base station is provided, and descending PDCP entities are corresponding with the first community that target BS is provided；It is up RLC entities and descending RLC entities by RLC entity divisions, up RLC entities are corresponding with the second community that source base station is provided, and descending RLC entities are corresponding with the first community that target BS is provided；

Wherein, user equipment carries out downlink transfer via first community and target BS, and carries out uplink via second community and source base station.

Optionally, source base station is micro-base station, and target BS is macro base station.

Optionally, the division unit 33, is additionally operable to：It is up PDCP entities and descending PDCP entities by PDCP entity divisions, up PDCP entities are corresponding with the first community that target BS is provided, and descending PDCP entities are corresponding with the second community that source base station is provided；

It is up RLC entities and descending RLC entities by RLC entity divisions, up RLC entities are corresponding with the first community that target BS is provided, and descending RLC entities are corresponding with the second community that source base station is provided；

Wherein, user equipment carries out uplink via first community and target BS, and carries out downlink transfer via second community and source base station. Optionally, source base station is macro base station, and target BS is micro-base station.

The user equipment that the present embodiment is provided, the execution equipment of the switching method provided for the present invention, its detailed process for performing switching method can be found in the associated description in the corresponding embodiments of the method for Fig. 1-Figure 13, repeat no more again.

The user equipment that the present embodiment is provided, source base station is according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The structural representation for another embodiment of base station that Figure 17 provides for the present invention, the base station can perform the method for any embodiment of the present invention, and the base station is, for example, source base station or other similar equipment having across station coordination function；As shown in figure 17, the base station includes：Processor 41 and emitter 42;

Processor 41, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community；

Emitter 42, for sending handover request to the corresponding target BS of first community, handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Emitter 42 is additionally operable to, switching command is sent to user equipment, switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment, so as to user equipment holding and the uplink of base station after switching and user equipment after downlink transfer, or switching is carried out via target BS to keep the downlink transfer between base station and via target BS progress uplink；

Optionally, processor 41 can be specifically for：When base station is micro-base station, and target BS is macro base station, it is determined that the downlink transfer of user equipment to be switched to the first community that service is provided by macro base station；Or, when base station is macro base station, and target BS is micro-base station, it is determined that the uplink of user equipment to be switched to the first community that service is provided by micro-base station.

Optionally, when base station is micro-base station, and target BS is when being macro base station, provides the corresponding cell in base station of service before first community covering switching to user equipment, or the frequency that macro base station is provided with micro-base station has It is overlapping；

When base station is macro base station, and target BS is when being micro-base station, provides the corresponding MPS process first community in base station of service before switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided.

Optionally, emitter 42 can be also used for：Radio resource allocation request message is sent to target BS, allocation request message is used for target BS and distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in first community for user equipment.

Optionally, emitter 42 can be also used for：Media access control layer control unit MAC CE, MAC CE are sent to user equipment to be used to indicate whether to allow uplink and downlink transfer to separate.

Optionally, sign is also included in switching command；Sign is used for instruction user equipment and the newly-built downlink and the up-link between reservation and base station for being used to carry to be switched downlink transfer of target BS；Or

Sign is used for instruction user equipment and the newly-built downlink for being used to carry to be switched downlink transfer of target BS or the newly-built up-link for being used to carry to be switched uplink, and retains up-link and downlink between base station. The base station that the present embodiment is provided, the execution equipment of the switching method provided for the present invention, its detailed process for performing switching method can be found in the associated description in the corresponding embodiments of the method for Fig. 1-Figure 13, repeat no more again.

The base station that the present embodiment is provided is source base station, according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, so that one in the uplink and downlink transfer of the user equipment cell server provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.Present embodiments provide it is a kind of the uplink of user equipment or downlink transfer are switched into target BS so that the method that the uplink and downlink of user equipment are communicated from different base stations, this method is applied to existing carrier type and new wave-carring type（New Carrier Type, NCT), new wave-carring type can be sent or not send master sync signal/auxiliary synchronous signals etc., and enhanced Physical Downlink Control Channel (E-PDCCH) can be sent on NCT or passes through PDCCH or E-PDCCH progress cross schedulings by other carrier waves.The structural representation for another embodiment of base station that Figure 18 provides for the present invention, the base station can perform the method for any embodiment of the present invention, and the base station is, for example, target BS or other similar equipment having across station coordination function；As shown in figure 18, the base station includes：Receiver 51, processor 52 and emitter 53;

Receiver 51, the handover request message for receiving source base station transmission, handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Processor 52, for determining to allow the downlink transfer of user equipment or uplink to switch to the first community that base station is provided；

Emitter 53, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for user equipment to source base station, so that user equipment keeps with the uplink of source base station and carries out downlink transfer via base station after switching, or so as to after switching user equipment keep the downlink transfer between source base station and carry out uplink via base station；

Optionally, when source base station is micro-base station, and base station is when being macro base station, provides the corresponding cell of source base station of service before first community covering switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided； When source base station is macro base station, and base station is when being micro-base station, provides the corresponding MPS process first community of source base station of service before switching to user equipment, or macro base station has overlapping with the frequency that micro-base station is provided.

Optionally, receiver 51 can be also used for：The radio resource allocation request message that source base station is sent is received, radio resource allocation request message is used for base station and distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in first community for user equipment.

The base station that the present embodiment is provided is target BS, source base station is according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, target BS can allow the uplink of user equipment or downlink transfer to switch to target BS, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The structural representation for user equipment another embodiment that Figure 19 provides for the present invention, as shown in figure 19, the user set including：Receiver 61 and processor 62;

Receiver 61, the switching command for receiving source base station transmission, switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for user equipment；

Processor 62, the uplink with source base station is kept for carrying out downlink resource configuration according to downlink resource configuration information, after switching and downlink transfer is carried out via target BS；Or confidence is matched somebody with somebody according to ascending resource Breath carries out ascending resource configuration, and the downlink transfer between source base station is kept after switching and uplink is carried out via target BS；

Optionally, processor 62 can be also used for：It is up PDCP entities and descending PDCP entities by PDCP entity divisions, up PDCP entities are corresponding with the second community that source base station is provided, and descending PDCP entities are corresponding with the first community that target BS is provided；RLC entity divisions are up RLC entities and descending RLC entities by user equipment, and up RLC entities are corresponding with the second community that source base station is provided, and descending RLC entities are corresponding with the first community that target BS is provided；

Optionally, source base station is base station, and target BS is macro base station.

Optionally, processor 62 can be also used for：It is up PDCP entities and descending PDCP entities by PDCP entity divisions, up PDCP entities are corresponding with the first community that target BS is provided, and descending PDCP entities are corresponding with the second community that source base station is provided；

Wherein, user equipment carries out uplink via first community and target BS, and carries out downlink transfer via second community and source base station.

The user equipment that the present embodiment is provided, the execution equipment of the switching method provided for the present invention, it is held The detailed process of row switching method can be found in the associated description in the corresponding embodiments of the method for Fig. 1-Figure 13, repeat no more again.

The user equipment that the present embodiment is provided, source base station is according to the measurement report of user equipment to report, the uplink of user equipment or downlink transfer are switched into target BS, so that one in the uplink and downlink transfer of the user equipment cell serves provided by source base station, another cell serves provided by target BS, so as to improve cell throughout and spectrum efficiency.The structural representation of the one embodiment for the communication system that Figure 20 provides for the present invention, as shown in figure 20, the communication system includes：

Source base station 71 in above-mentioned any embodiment;With

Target BS 72 in above-mentioned any embodiment.

The action that above-mentioned source base station is realized refers to the action in above method embodiment or device embodiment performed by source base station, the action that above-mentioned target BS is realized refers to the action in above method embodiment or device embodiment performed by target BS, will not be repeated here.

In the communication system that the present embodiment is provided, the uplink of user equipment or downlink transfer are switched to target BS by source base station, target BS can allow the uplink of user equipment or downlink transfer to switch to target BS, so that the uplink and downlink of user equipment are communicated from different base stations respectively, so as to improve handling capacity and spectrum efficiency.It is apparent to those skilled in the art that, for convenience and simplicity of description, only it is illustrated with the division of above-mentioned each functional unit, in practical application, it can as needed and by above-mentioned functions distribute and be completed by different functional units, the internal structure of device is divided into different functional units, to complete all or part of function described above.The specific work process of the system, apparatus, and unit of foregoing description, may be referred to the corresponding process in preceding method embodiment, will not be repeated here.

In several embodiments provided herein, it should be understood that disclosed system, apparatus and method can be realized by another way.For example, device embodiment described above is only schematical, for example, the division of the unit or unit, it is only a kind of division of logic function, there can be other dividing mode when actually realizing, such as multiple units or component can combine or be desirably integrated into another system, or some features can be ignored, or do not perform.Another, shown or discussed coupling or direct-coupling or communication connection each other can be by some interfaces, between device or unit Connect coupling or communicate to connect, can be electrical, machinery or other forms.

The unit illustrated as separating component can be or may not be physically separate, and the part shown as unit can be or may not be physical location, you can with positioned at a place, or can also be distributed on multiple NEs.Some or all of unit therein can be selected to realize the purpose of this embodiment scheme according to the actual needs.

In addition, each functional unit in the application each embodiment can be integrated in a processing unit or unit is individually physically present, can also two or more units it is integrated in a unit.Above-mentioned integrated unit can both be realized in the form of hardware, it would however also be possible to employ the form of SFU software functional unit is realized.

If the integrated unit is realized using in the form of SFU software functional unit and as independent production marketing or in use, can be stored in a computer read/write memory medium.Understood based on such, the part or all or part of the technical scheme that the technical scheme of the application substantially contributes to prior art in other words can be embodied in the form of software product, the computer software product is stored in a storage medium, including some instructions are to cause a computer equipment（Can be personal computer, server, or network equipment etc.）Or processor（Processor all or part of step of each embodiment methods described of the application) is performed.And foregoing storage medium includes：U disks, mobile hard disk, read-only storage（ROM, read-only memory), random access memory（RAM, random access memory), magnetic disc or CD etc. are various can be with the medium of store program codes.

Described above, above example is only to the technical scheme for illustrating the application, rather than its limitations；Although the application is described in detail with reference to the foregoing embodiments, it will be understood by those within the art that：It can still modify to the technical scheme described in foregoing embodiments, or carry out equivalent substitution to which part technical characteristic；And these modifications or replacement, the essence of appropriate technical solution is departed from the spirit and scope of each embodiment technical scheme of the application.

Claims

Claim

1st, a kind of switching method, it is characterised in that including：

Source base station determines that the downlink transfer of user equipment is switched into first community or the uplink of user equipment is switched into first community；

The source base station sends handover request to the corresponding target BS of the first community, and the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The source base station sends switching command to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so as to the user equipment holding and the uplink of the source base station after switching and via the target BS progress downlink transfer, or after switching, the user equipment is kept the downlink transfer between the source base station and via the target BS progress uplink；

Wherein, the downlink transfer information and the downlink resource configuration information include being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information and the ascending resource configuration information include being used to indicate that the switching type for carrying out uplink switching is indicated.

2nd, according to the method described in claim 1, it is characterised in that：

The source base station is determined the downlink transfer of the user equipment switching to first community, specifically included：When the source base station is micro-base station, and the target BS is macro base station, the micro-base station determines to switch to the downlink transfer of the user equipment into the first community for providing service by the macro base station；Or,

The source base station is determined the uplink of the user equipment switching to first community, specifically included：When the source base station is macro base station, and the target BS is micro-base station, the macro base station determines to switch to the uplink of the user equipment into the first community for providing service by the micro-base station.

3rd, method according to claim 1 or 2, it is characterised in that：

The coverage of first community cell corresponding with the source base station for providing service to the user equipment before switching has overlapping；Or,

The target BS has overlapping with the frequency of the source base station.

4th, the method according to claim any one of 1-3, it is characterised in that the source base station is sent to the target BS before handover request message, in addition to：

The source base station sends radio resource allocation request message, the distribution request to the target BS Message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

5th, the method according to claim any one of 1-4, it is characterised in that also include：The source base station sends media access control layer control unit MAC CE to the user equipment, and the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

6th, the method according to claim any one of 1-5, it is characterised in that：

The downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；

The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

7th, the method according to claim any one of 1-6, it is characterised in that：

It is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

8th, the method according to claim any one of 1-7, it is characterised in that：

Also include sign in the switching command；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the target BS newly-built downlink for being used to carry the to be switched downlink transfer or newly-built for carrying the up of the to be switched uplink Link, and retain up-link and downlink between the source base station.

9th, a kind of switching method, it is characterised in that including：

Target BS receives the handover request that source base station is sent, and the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

The target BS determines to allow the downlink transfer of the user equipment or uplink to switch to the first community that the target BS is provided；

The target BS sends the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment to the source base station, so that the user equipment keeps the uplink with the source base station and carries out the downlink transfer via the target BS after switching, or so as to after switching the user equipment keep the downlink transfer between the source base station and carry out the uplink via the target BS；

Wherein, the downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

10th, method according to claim 9, it is characterised in that the target BS determines to allow the downlink transfer of the user equipment to switch to the first community that the target BS is provided, and specifically includes：When the source base station is micro-base station, and the target BS is macro base station, the target BS determines to allow the downlink transfer of the user equipment to switch to the first community that the target BS is provided；

Or,

The target BS determines to allow the uplink of the user equipment to switch to the first community that the target BS is provided, and specifically includes：

When the source base station is macro base station, and the target BS is micro-base station, the target BS determines to allow the uplink of the user equipment to switch to the first community that the target BS is provided.

11st, the method according to claim 9 or 10, it is characterised in that the target BS is received before the handover request that source base station is sent, in addition to：

The target BS receives the radio resource allocation request message that the source base station is sent, and the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

12nd, the method according to claim any one of 9-11, it is characterised in that the downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution Know, at least one described E-RAB identifies corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；

The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

13rd, a kind of switching method, it is characterised in that including：

User equipment receives the switching command that source base station is sent, and the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

The user equipment carries out downlink resource configuration according to the downlink resource configuration information, and the uplink with the source base station is kept after switching and the downlink transfer is carried out via target BS；Or ascending resource configuration is carried out according to the ascending resource configuration information, the downlink transfer between the source base station is kept after switching and the uplink is carried out via the target BS；

Wherein, the downlink resource configuration information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

14th, the method according to claim 13, it is characterised in that：Also include sign in the switching command that the user equipment is received；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

15th, the method according to claim 13 or 14, it is characterised in that also include：The PDCP entity divisions are up PDCP entities and descending PDCP entities by the user equipment, and the up PDCP entities are corresponding with the second community that the source base station is provided, described descending PDCP entities are corresponding with the first community that the target BS is provided；

The RLC entity divisions are up RLC entities and descending RLC entities by the user equipment, and the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；

Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station.

16th, method according to claim 15, it is characterised in that：

The source base station is micro-base station, and the target BS is macro base station.

17th, the method according to claim 13 or 14, it is characterised in that also include：The PDCP entity divisions are up PDCP entities and descending PDCP entities by the user equipment, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；

The RLC entity divisions are up RLC entities and descending RLC entities by the user equipment, and the up RLC entities are corresponding with the first community that the target BS is provided, and the descending RLC entities are corresponding with the second community that the source base station is provided；

Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

18th, method according to claim 17, it is characterised in that：

The source base station is macro base station, and the target BS is micro-base station.

19th, a kind of base station, it is characterised in that including：

Determining unit, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community；

Transmitting element, for sending handover request to the corresponding target BS of the first community, the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The transmitting element is additionally operable to, switching command is sent to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so as to the user equipment holding and the uplink of the base station after switching and via the target BS progress downlink transfer, or after switching, the user equipment is kept the downlink transfer between the base station and via the target BS progress uplink； Wherein, the downlink transfer information and the downlink resource configuration information include being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information and the ascending resource configuration information include being used to indicate that the switching type for carrying out uplink switching is indicated.

20th, the base station according to claim 19, it is characterised in that the determining unit specifically for：

When the base station is micro-base station, and the target BS is macro base station, it is determined that the downlink transfer of the user equipment to be switched to the first community that service is provided by the macro base station；Or,

When the base station is macro base station, and the target BS is micro-base station, it is determined that the uplink of the user equipment to be switched to the first community that service is provided by the micro-base station.

21st, the base station according to claim 19 or 20, it is characterised in that：

The coverage of first community cell corresponding with the base station for providing service to the user equipment before switching has overlapping；Or,

The base station has overlapping with the frequency of the target BS.

22nd, the base station according to claim any one of 19-21, it is characterised in that：

The transmitting element is additionally operable to：Radio resource allocation request message is sent to the target BS, the allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

23rd, the base station according to claim any one of 19-22, it is characterised in that：

The transmitting element is additionally operable to：Media access control layer control unit MAC CE are sent to the user equipment, the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

24th, the base station according to claim any one of 19-23, it is characterised in that：

The downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user terminal-Radio Network Temporary Identifier C-RNTI information；

The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user terminal. 25th, the base station according to claim any one of 19-24, it is characterised in that：It is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

26th, the base station according to claim any one of 19-25, it is characterised in that：

Also include sign in the switching command；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the base station for being used to carry to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the base station for being used to carry the to be switched uplink of the target BS；Or,

The sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the base station

27th, a kind of base station, it is characterised in that including：

Receiving unit, the handover request message for receiving source base station transmission, the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Determining unit, for determining to allow the downlink transfer of the user equipment or uplink to switch to the first community that the base station is provided；

Transmitting element, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for the user equipment to the source base station, so that the user equipment keeps the uplink with the source base station and carries out the downlink transfer via the base station after switching, or so as to after switching the user equipment keep the downlink transfer between the source base station and carry out the uplink via the base station；

Wherein, the downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

28th, the base station according to claim 27, it is characterised in that the determining unit, specifically For：

When the source base station is micro-base station, and the base station is macro base station, it is determined that allowing the downlink transfer of the user equipment to switch to the first community that the base station is provided；Or,

When the source base station is macro base station, and the base station is micro-base station, it is determined that allowing the uplink of the user equipment to switch to the first community that the base station is provided.

29th, the base station according to claim 27 or 28, it is characterised in that：

The receiving unit, it is additionally operable to receive the radio resource allocation request message that the source base station is sent, the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the base station.

30th, the base station according to claim any one of 27-29, it is characterised in that：

The downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information；

The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

31st, a kind of user equipment, it is characterised in that including：

Receiving unit, the switching command for receiving source base station transmission, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

Dispensing unit, for carrying out downlink resource configuration according to the downlink resource configuration information, the user equipment keeps the uplink with the source base station and carries out the downlink transfer via target BS after switching；Or ascending resource configuration is carried out according to the ascending resource configuration information, the user equipment keeps the downlink transfer between the source base station and carries out the uplink via the target BS after switching；

Wherein, the downlink resource configuration information includes the switching class for being used to indicate to carry out downlink transfer switching Type is indicated, or, the ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

32nd, user equipment according to claim 31, it is characterised in that：

Also include sign in the switching command；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

33rd, the user equipment according to claim 31 or 32, it is characterised in that also including division unit, be used for：

It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the second community that the source base station is provided, and the descending PDCP entities are corresponding with the first community that the target BS is provided；

It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；

Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station.

34th, the user equipment according to claim 33, it is characterised in that the source base station is micro-base station, the target BS is macro base station.

35th, the user equipment according to claim 31 or 32, it is characterised in that also including division unit, be used for：

It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；

It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the first community that the target BS is provided, the descending RLC entities and the source base station The second community correspondence of offer；

Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

36th, the user equipment according to claim 35, it is characterised in that the source base station is macro base station, the target BS is micro-base station.

37th, a kind of base station, it is characterised in that including：

Processor, the downlink transfer for determining user equipment switches to first community or the uplink of user equipment is switched into first community；

Emitter, for sending handover request to the corresponding target BS of the first community, the handover request has the to be switched downlink transfer information of the user equipment or uplink transmission information；

The emitter is additionally operable to, switching command is sent to the user equipment, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment, so as to the user equipment holding and the uplink of the base station after switching and via the target BS progress downlink transfer, or after switching, the user equipment is kept the downlink transfer between the base station and via the target BS progress uplink；

Wherein, the downlink transfer information and the downlink resource configuration information include being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information and the ascending resource configuration information include being used to indicate that the switching type for carrying out uplink switching is indicated.

38th, the base station according to claim 37, it is characterised in that the processor specifically for：When the base station is micro-base station, and the target BS is macro base station, it is determined that the downlink transfer of the user equipment to be switched to the first community that service is provided by the macro base station；Or,

When the base station is macro base station, and the target BS is micro-base station, it is determined that the uplink of the user equipment to be switched to the first community that service is provided by the micro-base station.

39th, the base station according to claim 37 or 38, it is characterised in that：

The coverage of first community cell corresponding with the source base station for providing service to the user equipment before switching has overlapping；Or,

The target BS has overlapping with the frequency of the source base station.

40th, the base station according to claim any one of 37-39, it is characterised in that：

The emitter is additionally operable to：Radio resource allocation request message is sent to the target BS, it is described Allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the target BS.

41st, the base station according to claim any one of 37-40, it is characterised in that：

The emitter is additionally operable to：Media access control layer control unit MAC CE are sent to the user equipment, the MAC CE are used to indicate whether to allow uplink and downlink transfer to separate.

42nd, the base station according to claim any one of 37-41, it is characterised in that：

The downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user terminal-Radio Network Temporary Identifier C-RNTI information；

The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user terminal.

43rd, the base station according to claim any one of 37-42, it is characterised in that：

It is described to include following a kind of or any number of combination for the downlink resource configuration information that the user equipment is distributed：Signaling Radio Bearer SRB downstream arrangements information, Data Radio Bearer DRB downstream arrangements information, media access control MAC downstream arrangements information, Physical Downlink Shared Channel PDSCH configuration informations；It is described to include following a kind of or any number of combination for the ascending resource configuration information that the user equipment is distributed：The up configuration informations of SRB, the up configuration informations of DRB, the up configuration informations of MAC, PUSCH configuration informations.

44th, the base station according to claim any one of 37-43, it is characterised in that：

Also include sign in the switching command；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the base station for being used to carry to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the base station for being used to carry the to be switched uplink of the target BS；Or,

The sign is used to indicate the user equipment and the target BS newly-built downlink for being used to carry the to be switched downlink transfer or newly-built for carrying the up of the to be switched uplink Link, and retain up-link and downlink between the base station.

45th, a kind of base station, it is characterised in that including：

Receiver, the handover request message for receiving source base station transmission, the handover request has the to be switched downlink transfer information of user equipment or uplink transmission information；

Processor, for determining to allow the downlink transfer of the user equipment or uplink to switch to the first community that the base station is provided；

Emitter, for sending the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink that are distributed for the user equipment to the source base station, so that the user equipment keeps the uplink with the source base station and carries out the downlink transfer via the base station after switching, or so as to after switching the user equipment keep the downlink transfer between the source base station and carry out the uplink via the base station；

Wherein, the downlink transfer information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the uplink transmission information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

46th, the base station according to claim 45, it is characterised in that：The processor, specifically for：

When the source base station is micro-base station, and the base station is macro base station, it is determined that allowing the downlink transfer of the user equipment to switch to the first community that the base station is provided；Or,

When the source base station is macro base station, and the base station is micro-base station, it is determined that allowing the uplink of the user equipment to switch to the first community that the base station is provided.

47th, the base station according to claim 45 or 46, the receiver is additionally operable to：The radio resource allocation request message that the source base station is sent is received, the radio resource allocation request message is that the user equipment distributes the to be switched corresponding downlink resource of downlink transfer or the to be switched corresponding ascending resource of uplink in the first community for the base station.

48th, the base station according to claim any one of 45-47, it is characterised in that：

The downlink transfer information also includes following a kind of or any number of combination：The RAB E-RAB marks of at least one evolution, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The cell of downlink radio resource specific configuration information and/or the user equipment-Radio Network Temporary Identifier C-RNTI information； The uplink transmission information includes following a kind of or any number of combination：At least one E-RAB marks, at least one described E-RAB identify corresponding E-RAB QoS parameters, wireless heterogeneous networks contextual information；Wherein, the wireless heterogeneous networks contextual information includes：The C-RNTI information of ascending wireless resource specific configuration information and/or the user equipment.

49th, a kind of user equipment, it is characterised in that including：

Receiver, the switching command for receiving source base station transmission, the switching command has the corresponding downlink resource configuration information of to be switched downlink transfer or the corresponding ascending resource configuration information of to be switched uplink distributed for the user equipment；

Processor, for carrying out downlink resource configuration according to the downlink resource configuration information, the user equipment keeps the uplink with the source base station and carries out the downlink transfer via target BS after switching；Or ascending resource configuration is carried out according to the ascending resource configuration information, the user equipment keeps the downlink transfer between the source base station and carries out the uplink via the target BS after switching；

Wherein, the downlink resource configuration information includes being used to indicate that the switching type for carrying out downlink transfer switching is indicated, or, the ascending resource configuration information includes being used to indicate that the switching type for carrying out uplink switching is indicated.

50th, user equipment according to claim 49, it is characterised in that：

Also include sign in the switching command；

The sign is used to indicate the user equipment and the newly-built downlink and the up-link between reservation and the source base station for being used to carry the to be switched downlink transfer of the target BS；Or

The sign is used to indicate the user equipment and the newly-built up-link and the downlink between reservation and the source base station for being used to carry the to be switched uplink of the target BS；Or, the sign is used to indicate the user equipment and the newly-built downlink for being used to carry the to be switched downlink transfer of the target BS or the newly-built up-link for being used to carry the to be switched uplink, and retains up-link and downlink between the source base station.

51st, the user equipment according to claim 49 or 50, it is characterised in that the processor is additionally operable to：

It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the second community that the source base station is provided, and the descending PDCP entities are corresponding with the first community that the target BS is provided； It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the second community that the source base station is provided, and the descending RLC entities are corresponding with the first community that the target BS is provided；

Wherein, the user equipment carries out the downlink transfer via the first community and the target BS, and carries out the uplink via the second community and the source base station.

52nd, the user equipment according to claim 51, it is characterised in that the source base station is micro-base station, the target BS is macro base station.

53rd, the user equipment according to claim 49 or 50, it is characterised in that：

The processor is additionally operable to：It is up PDCP entities and descending PDCP entities by the PDCP entity divisions, the up PDCP entities are corresponding with the first community that the target BS is provided, and the descending PDCP entities are corresponding with the second community that the source base station is provided；

It is up RLC entities and descending RLC entities by the RLC entity divisions, the up RLC entities are corresponding with the first community that the target BS is provided, and the descending RLC entities are corresponding with the second community that the source base station is provided；

Wherein, the user equipment carries out the uplink via the first community and the target BS, and carries out the downlink transfer via the second community and the source base station.

54th, the user equipment according to claim 53, it is characterised in that the source base station is macro base station, the target BS is micro-base station.