CN103718498A

CN103718498A - Carrier aggregation method, device and system

Info

Publication number: CN103718498A
Application number: CN201380001162.0A
Authority: CN
Inventors: 谭继奎; 吴勇; 王宏岗
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2013-09-02
Filing date: 2013-09-02
Publication date: 2014-04-09
Anticipated expiration: 2033-09-02
Also published as: CN103718498B; WO2015027520A1

Abstract

An embodiment of the invention provides a carrier aggregation method, device and system. The method comprises: a first object determines a non-main carrier cell of CA; the first object is used for controlling a main carrier cell of CA, wherein the main carrier cell is a cell of a first duplex mode, the non-main carrier cell is a cell of a second duplex mode, and the first duplex mode is different to the second duplex mode; the first object interacts a first data with UE, and interacts a second data with UE by a second object; and the second object is used for controlling the non-main carrier cell of CA. The embodiment of the invention provides a solution scheme of carrier CA, and a throughput rate and a frequency spectrum resource use ratio are raised.

Description

Carrier aggregation method, device and system

Technical Field

Embodiments of the present invention relate to communications technologies, and in particular, to a carrier aggregation method, device, and system.

Background

With the rapid development of communication technology, the number and throughput demand of mobile terminal users are increasing, but because the carrier resources of a single cell are limited, when no idle carrier resources are available in the cell, the users in the cell cannot reach the peak throughput of the user capability.

Carrier Aggregation (CA) technology is introduced in Release 10 stage of the third Generation Partnership Project (3 rd Generation Partnership Project), multiple continuous or discontinuous carriers are aggregated into a larger bandwidth to meet the requirement of improving the peak throughput of single User Equipment (UE), the aggregated carriers comprise a main Carrier and one or more auxiliary carriers, according to the 3GPP protocol, the main Carrier needs to send service data and control messages, the auxiliary carriers can only send service data, and the control messages on the auxiliary carriers can be sent on the main Carrier. The CA technology comprises a downlink CA and an uplink CA, wherein the downlink CA achieves the purpose of improving the downlink rate of the terminal by aggregating a plurality of downlink carriers, and the uplink CA achieves the purpose of improving the uplink rate of the terminal by aggregating a plurality of uplink carriers.

However, the prior art only implements CA for carriers of the same standard, i.e. CA for carriers of a single duplex mode.

Disclosure of Invention

The embodiment of the invention provides a carrier aggregation method, equipment and a system, which are used for providing a solution of a different-system carrier CA.

In a first aspect, the present invention provides a carrier aggregation method, including:

a first entity determines an auxiliary carrier cell of a Carrier Aggregation (CA); the first entity is configured to control a primary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode;

the first entity interacts first data with User Equipment (UE) and interacts second data with the UE through a second entity; the second entity is configured to control a secondary carrier cell of the CA.

With reference to the first aspect, in a first possible implementation manner of the first aspect, before the interacting, by the first entity, first data with a user equipment UE, the method further includes:

the first entity determines a frequency range of a secondary carrier corresponding to the secondary carrier cell, wherein the frequency range corresponding to the secondary carrier overlaps with the frequency range of the first duplex mode;

determining the frequency points corresponding to the overlapped frequency ranges in the first duplex mode;

and informing the UE of the frequency point, wherein the frequency point is used for the UE and the second entity to interact data according to the first duplex mode.

With reference to the first possible implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the first data is first downlink data, and the second data is second downlink data;

the first entity interacts first data with User Equipment (UE), and the method comprises the following steps: the first entity modulates the first downlink data according to the first duplex mode and sends the modulated first downlink data to the UE;

the interacting, by the second entity, with the UE of the second data includes:

the first entity modulates the second downlink data according to the first duplex mode and sends the modulated second downlink data to the UE through the second entity; or, the first entity provides the second downlink data to the second entity for modulation according to the first duplex mode, and the modulated second downlink data is sent to the UE by the second entity; and the interaction between the second entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the first possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the first data is first uplink data, and the second data is second uplink data;

the first entity interacts first data with User Equipment (UE), and the method comprises the following steps: the first entity receives first uplink data from the UE, wherein the first uplink data is modulated by the UE according to the first duplex mode;

the interacting, by the second entity, with the UE of the second data includes: the first entity receives, from the second entity, second uplink data modulated by the UE according to the first duplexing mode, where the modulated second uplink data is sent to the second entity by the UE; and the interaction between the second entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the first aspect, in a fourth possible implementation manner of the first aspect, before the interacting, by the first entity, first data with a user equipment UE, the method further includes:

the first entity determines a frequency point corresponding to the frequency range of the secondary carrier corresponding to the secondary carrier cell in the second duplex mode;

and informing the UE of the frequency point, wherein the frequency point is used for the UE and the second entity to interact data according to the second duplex mode.

With reference to the fourth possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the first data is first downlink data, and the second data is second downlink data;

the first entity interacts first data with User Equipment (UE), and the method comprises the following steps:

the first entity modulates the first downlink data according to the first duplex mode and sends the modulated first downlink data to the UE;

the interacting, by the second entity, with the UE of the second data includes:

after the first entity provides the second downlink data for the second entity to be modulated according to the second duplex mode, the modulated second downlink data is sent to the UE by the second entity; and the interaction between the second entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the fourth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the first data is first uplink data, and the second data is second uplink data;

the first entity receives first uplink data from the UE, wherein the first uplink data is modulated by the UE according to the first duplex mode;

the interacting, by the second entity, with the UE of the second data includes:

the first entity receives second uplink data from the second entity, and the second uplink data is sent by the second entity after demodulating the second uplink data received from the UE and modulated by the UE according to a second duplex mode.

With reference to the second or fifth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, after the interacting, by the second entity, the second data with the UE, the method further includes:

and the first entity receives an uplink hybrid automatic repeat request (HARQ) indication which is sent by the UE according to the feedback time sequence of the first duplex mode and aims at the second downlink data.

With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, the first duplex mode is a Time Division Duplex (TDD) mode, and when the second duplex mode is a Frequency Division Duplex (FDD) mode, the second entity sends the second downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

With reference to the third or sixth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, after the interacting, by the second entity, the second data with the UE, the method further includes:

and the first entity sends a downlink HARQ indication aiming at the second uplink data to the UE according to the feedback time sequence of the first duplex mode.

With reference to the ninth possible implementation manner of the first aspect, in a tenth possible implementation manner of the first aspect, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the second entity receives the second uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

With reference to the second, fifth, or seventh possible implementation manner of the first aspect, in an eleventh possible implementation manner of the first aspect, before the interacting, by the second entity, the second data with the UE, the method further includes:

and the first entity determines that the downlink CA in the auxiliary carrier wave occupies resources, wherein the downlink CA in the auxiliary carrier wave occupies resources used for sending the second downlink data and is not used for the second entity and the UE accessing the auxiliary carrier wave cell to exchange data.

With reference to the eleventh possible implementation manner of the first aspect, in a twelfth possible implementation manner of the first aspect, the determining, by the first entity, that the downlink CA in the secondary carrier occupies the resource includes:

the first entity and the second entity negotiate to determine that the downlink CA in the auxiliary carrier wave occupies resources; or,

and the first entity determines that the downlink CA in the auxiliary carrier wave occupies resources according to the pre-configuration.

With reference to the eleventh or twelfth possible implementation manner of the first aspect, in a thirteenth possible implementation manner of the first aspect, the first duplex mode is an FDD mode, and when the second duplex mode is a TDD mode, before the interacting, by the second entity, the method further includes:

and when the first entity determines that the downlink CA in the auxiliary carrier occupies resources for sending the second downlink data, the uplink subframe and the special subframe in the auxiliary carrier are unavailable.

With reference to the third, sixth, or ninth possible implementation manner of the first aspect, in a fourteenth possible implementation manner of the first aspect, before the interacting, by the second entity, the second data with the UE, the method further includes:

and the first entity determines the uplink CA occupied resource in the auxiliary carrier, and schedules the UE to send the second uplink data through the uplink CA occupied resource in the auxiliary carrier, wherein the uplink CA occupied resource in the auxiliary carrier is not used for the second entity to exchange data with the UE accessed to the auxiliary carrier cell.

With reference to the fourteenth possible implementation manner of the first aspect, in a fifteenth possible implementation manner of the first aspect, the determining, by the first entity, that the uplink CA in the secondary carrier occupies a resource includes:

the first entity and the second entity negotiate to determine that the uplink CA in the auxiliary carrier wave occupies resources; or,

and the first entity determines that the uplink CA in the auxiliary carrier wave occupies resources according to the pre-configuration.

With reference to the fourteenth or fifteenth possible implementation manners of the first aspect, in a sixteenth possible implementation manner of the first aspect, the first duplex mode is an FDD mode, and when the second duplex mode is a TDD mode, before the interacting, by the second entity, the second data with the UE, the method further includes:

and when the first entity determines that the uplink CA in the auxiliary carrier occupies the resource for receiving the second uplink data, the downlink subframe and the special subframe in the auxiliary carrier are unavailable.

With reference to any one of the first to sixteenth possible implementation manners of the first aspect, in a seventeenth possible implementation manner of the first aspect, the notifying the UE of the frequency point includes:

and after the UE accesses the main carrier cell, the first entity sends a Radio Resource Control (RRC) reconfiguration message to the UE, wherein the RRC reconfiguration message carries the information of the frequency point.

With reference to the first aspect or any one of the foregoing possible implementations of the first aspect, in an eighteenth possible implementation of the first aspect, the determining, by the first entity, a secondary carrier cell of a carrier aggregation CA includes:

the first entity selects a secondary carrier cell of the CA in a cell set configured by an Operation Support System (OSS), wherein the cell set comprises at least one cell of a second duplex mode.

In a second aspect, the present invention provides a carrier aggregation method, including:

the second entity determines a main carrier cell of the carrier aggregation CA; the second entity is configured to control a secondary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

interacting data with User Equipment (UE) according to the indication of the first entity; the first entity is configured to control a primary carrier cell of the CA.

With reference to the second aspect, in a first possible implementation manner of the second aspect, the interacting data with the user equipment UE according to the indication of the first entity includes:

and the second entity interacts data with the UE according to the indication of the first entity and the first duplex mode.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner of the second aspect, the data is downlink data;

the second entity interacts data with the UE according to the indication of the first entity and the first duplex mode, and the method comprises the following steps:

the second entity receives the downlink data modulated by the first entity according to the first duplex mode from the first entity, and sends the downlink data modulated according to the first duplex mode to the UE; or,

and the second entity receives the downlink data from the first entity, modulates the downlink data according to a first duplex mode and then sends the modulated downlink data to the UE.

With reference to the first possible implementation manner of the second aspect, in a third possible implementation manner of the second aspect, the data is uplink data;

the second entity receives uplink data modulated by the UE according to the first duplex mode from the UE;

and sending the uplink data modulated according to the first duplex mode to the first entity.

With reference to the second aspect, in a fourth possible implementation manner of the second aspect, the interacting, by the second entity, data with the user equipment UE according to the indication of the first entity includes:

and the second entity interacts data with the UE according to the second duplex mode according to the indication of the first entity.

With reference to the fourth possible implementation manner of the second aspect, in a fifth possible implementation manner of the second aspect, the data is downlink data;

the second entity interacts data with the UE according to the indication of the first entity and in the second duplex mode, including:

and the second entity receives the downlink data from the first entity, modulates the downlink data according to the second duplex mode and then sends the modulated downlink data to the UE.

With reference to the sixth fifth possible implementation manner of the second aspect, in a sixth possible implementation manner of the second aspect, after the second entity interacts data with the UE according to the indication of the first entity and according to the second duplex mode, the method further includes:

and the second entity receives an uplink hybrid automatic repeat request (HARQ) indication aiming at the downlink data, which is sent by the UE according to the feedback time sequence of the second duplex mode.

With reference to the second or fifth possible implementation manner of the second aspect, in a seventh possible implementation manner of the second aspect, the first duplex mode is a Time Division Duplex (TDD) mode, and when the second duplex mode is a Frequency Division Duplex (FDD) mode, the second entity sends the downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

With reference to the fourth possible implementation manner of the second aspect, in an eighth possible implementation manner of the second aspect, the data is uplink data;

the second entity receives uplink data modulated by the UE according to the second duplex mode from the UE;

and demodulating the uplink data modulated according to the second duplex mode and then sending the demodulated uplink data to the first entity.

With reference to the eighth possible implementation manner of the second aspect, in a ninth possible implementation manner of the second aspect, after the receiving, by the second entity, the uplink data modulated according to the second duplex mode and sent by the UE, the method further includes:

and the second entity sends a downlink HARQ indication aiming at the uplink data to the UE according to the feedback time sequence of the second duplex mode.

With reference to the third or eighth possible implementation manner of the second aspect, in a tenth possible implementation manner of the second aspect, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the second entity receives the uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in an eleventh possible implementation of the second aspect, before the interacting data with the user equipment UE according to the indication of the first entity, the method further includes:

the second entity determines that the CA in the auxiliary carrier wave occupies resources;

the interacting data with the User Equipment (UE) according to the indication of the first entity comprises:

and the second entity interacts data with the UE through the resource occupied by the CA in the auxiliary carrier according to the indication of the first entity.

With reference to the eleventh possible implementation manner of the second aspect, in a twelfth possible implementation manner of the second aspect, the determining, by the second entity, that a CA in a secondary carrier occupies a resource includes:

the second entity and the first entity negotiate to determine that the CA in the auxiliary carrier wave occupies resources; or,

and the second entity determines that the CA in the secondary carrier wave occupies resources according to the pre-configuration.

With reference to the eleventh or twelfth possible implementation manner of the second aspect, in a thirteenth possible implementation manner of the second aspect, the method further includes:

and the second entity interacts data with the UE accessed to the auxiliary carrier cell through other resources except the resources occupied by the CA in the auxiliary carrier.

With reference to the twelfth possible implementation manner of the second aspect, in a fourteenth possible implementation manner of the second aspect, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode;

when the second entity sends data to the UE through the resource occupied by the CA in the auxiliary carrier, the uplink subframe and the special subframe in the auxiliary carrier are unavailable; or,

and when the second entity receives data from the UE through the resource occupied by the CA in the auxiliary carrier, the downlink subframe and the special subframe in the auxiliary carrier are unavailable.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in a fifteenth possible implementation of the second aspect, the determining, by the second entity, a primary carrier cell of a carrier aggregation, CA, includes:

and the second entity determines a main carrier cell of the carrier aggregation CA according to the configuration of the operation support system OSS.

With reference to the second aspect or any one of the foregoing possible implementations of the second aspect, in a sixteenth possible implementation of the second aspect, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

In a third aspect, the present invention provides a carrier aggregation method, including:

user Equipment (UE) determines a main carrier cell and an auxiliary carrier cell of a Carrier Aggregation (CA); the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

the UE interacts first data with a first entity and interacts second data with the first entity through a second entity; the first entity is configured to control the primary carrier cell, and the second entity is configured to control the secondary carrier cell.

With reference to the third aspect, in a first possible implementation manner of the third aspect, the interacting, by the UE, first data with a first entity includes:

the UE interacts first data with the first entity according to the first duplex mode;

the interacting of the second data with the first entity by the second entity comprises:

and according to the second duplex mode, interacting second data with the first entity through a second entity.

With reference to the first possible implementation manner of the third aspect, in a second possible implementation manner of the third aspect, the second data is second downlink data;

the interacting, by a second entity, second data with the first entity according to the second duplex mode includes:

the UE receives, from the second entity, second downlink data modulated by the second entity according to the second duplex mode, where the second downlink data is received by the second entity from the first entity.

With reference to the second possible implementation manner of the third aspect, in a third possible implementation manner of the third aspect, after the interacting, by the second entity and the first entity, the second data according to the second duplex mode, the method further includes:

and the UE sends an uplink hybrid automatic repeat request (HARQ) indication aiming at the second downlink data to the second entity according to the feedback time sequence of the second duplex mode.

With reference to the first possible implementation manner of the third aspect, in a fourth possible implementation manner of the third aspect, the second data is second uplink data;

and the UE sends the second uplink data modulated according to the second duplex mode to the second entity, and the modulated second uplink data is sent to the first entity by the second entity after being demodulated by the second entity.

With reference to the fourth possible implementation manner of the third aspect, in a fifth possible implementation manner of the third aspect, after the interacting, by the second entity and the first entity, the second data according to the second duplex mode, the method further includes:

the UE receives a downlink HARQ indication aiming at the second uplink data, which is sent by the second entity according to the feedback time sequence of the second duplex mode; or,

and the UE receives a downlink HARQ indication which is sent by the first entity according to the feedback time sequence of the first duplex mode and aims at the second uplink data.

With reference to the third aspect or any one of the foregoing possible implementation manners of the third aspect, in a sixth possible implementation manner of the third aspect, the determining, by the user equipment UE, a primary carrier cell and a secondary carrier cell of a carrier aggregation CA includes:

and after the UE is accessed to the main carrier cell, receiving the information of the frequency point corresponding to the auxiliary carrier cell from the first entity.

With reference to the sixth possible implementation manner of the third aspect, in a seventh possible implementation manner of the third aspect, the receiving, from the first entity, information of a frequency point corresponding to a secondary carrier corresponding to the secondary carrier cell includes:

and the UE receives a Radio Resource Control (RRC) reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

With reference to the third aspect or any one of the foregoing possible implementation manners of the third aspect, in an eighth possible implementation manner of the third aspect, the first duplex mode is a Frequency Division Duplex (FDD) mode, and the second duplex mode is a Time Division Duplex (TDD) mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

In a fourth aspect, the present invention provides an entity comprising:

a processor configured to determine a secondary carrier cell of a carrier aggregation CA; the entity is configured to control a primary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode;

a transmitter and a receiver for interacting first data with a User Equipment (UE) and interacting second data with the UE through another entity; the other entity is for controlling a secondary carrier cell of the CA.

With reference to the fourth aspect, in a first possible implementation manner of the fourth aspect, the processor is further configured to:

determining a frequency range of a secondary carrier corresponding to the secondary carrier cell before interacting first data with User Equipment (UE), wherein the frequency range corresponding to the secondary carrier overlaps with the frequency range of the first duplex mode;

the transmitter is further configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact with data according to the first duplex mode.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner of the fourth aspect, the first data is first downlink data, and the second data is second downlink data;

the transmitter is specifically configured to:

modulating the first downlink data according to the first duplex mode, and sending the modulated first downlink data to the UE;

modulating the second downlink data according to the first duplex mode, and sending the modulated second downlink data to the UE through the other entity; or, the first entity provides the second downlink data to the other entity for modulation according to the first duplex mode, and the modulated second downlink data is sent to the UE by the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the first possible implementation manner of the fourth aspect, in a third possible implementation manner of the fourth aspect, the first data is first uplink data, and the second data is second uplink data;

the receiver is specifically configured to:

receiving, from the UE, first uplink data modulated by the UE in the first duplexing mode;

receiving, from the other entity, second uplink data modulated by the UE according to the first duplexing mode, where the modulated second uplink data is sent by the UE to the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the fourth aspect, in a fourth possible implementation manner of the fourth aspect, the processor is further configured to:

before first data is interacted with User Equipment (UE), determining a frequency point corresponding to the frequency range of the secondary carrier corresponding to the secondary carrier cell in the second duplex mode;

the transmitter is further configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact with data according to the second duplex mode.

With reference to the fourth possible implementation manner of the fourth aspect, in a fifth possible implementation manner of the fourth aspect, the first data is first downlink data, and the second data is second downlink data;

the transmitter is specifically configured to:

providing the second downlink data to the other entity for modulation according to the second duplex mode, and then sending the modulated second downlink data to the UE by the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

With reference to the fourth possible implementation manner of the fourth aspect, in a sixth possible implementation manner of the fourth aspect, the first data is first uplink data, and the second data is second uplink data;

the receiver is specifically configured to:

and receiving second uplink data from the other entity, wherein the second uplink data is transmitted by the other entity after demodulating the second uplink data received from the UE and modulated by the UE according to the second duplex mode.

With reference to the second or fifth possible implementation manner of the fourth aspect, in a seventh possible implementation manner of the fourth aspect, the receiver is further configured to receive an uplink hybrid automatic repeat request HARQ indication, which is sent by the UE according to the feedback timing of the first duplex mode and is for the second downlink data.

With reference to the seventh possible implementation manner of the fourth aspect, in an eighth possible implementation manner of the fourth aspect, the first duplex mode is a Time Division Duplex (TDD) mode, and when the second duplex mode is a Frequency Division Duplex (FDD) mode, the other entity sends the second downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

With reference to the third or sixth possible implementation manner of the fourth aspect, in a ninth possible implementation manner of the fourth aspect, the transmitter is further configured to send, to the UE, a downlink HARQ indication for the second uplink data according to the feedback timing of the first duplex mode.

With reference to the ninth possible implementation manner of the fourth aspect, in a tenth possible implementation manner of the fourth aspect, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the other entity receives the second uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

With reference to the fourth aspect, the fifth possible implementation manner of the fourth aspect, or the seventh possible implementation manner of the fourth aspect, in an eleventh possible implementation manner of the fourth aspect, the processor is further configured to:

determining that a downlink CA in the auxiliary carrier wave occupies resources before the transmitter and the receiver interact second data with the UE through a second entity, wherein the downlink CA in the auxiliary carrier wave occupies resources used for sending the second downlink data and is not used for the second entity to interact data with the UE accessed to the auxiliary carrier wave cell.

With reference to the eleventh possible implementation manner of the fourth aspect, in a twelfth possible implementation manner of the fourth aspect, the processor is further specifically configured to:

negotiating with the other entity to determine that the downlink CA in the auxiliary carrier wave occupies resources; or,

and determining that the downlink CA in the auxiliary carrier wave occupies resources according to the pre-configuration.

With reference to the eleventh or twelfth possible implementation manner of the fourth aspect, in a thirteenth possible implementation manner of the fourth aspect, when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, the processor is further configured to:

before interacting second data with the UE through another entity, determining that an uplink subframe and a special subframe in the secondary carrier are unavailable when a downlink CA in the secondary carrier occupies resources for sending the second downlink data.

With reference to the third, sixth, or ninth possible implementation manner of the fourth aspect, in a fourteenth possible implementation manner of the fourth aspect, the processor is further configured to:

before interacting second data with the UE through another entity, determining an uplink CA (conditional access) occupied resource in the auxiliary carrier, and scheduling the UE to send the second uplink data through the uplink CA occupied resource in the auxiliary carrier, wherein the uplink CA occupied resource in the auxiliary carrier is not used for the other entity to interact data with the UE accessed to the auxiliary carrier cell.

With reference to the fourteenth possible implementation manner of the fourth aspect, in a fifteenth possible implementation manner of the fourth aspect, the processor is further specifically configured to:

negotiating with the other entity to determine that the uplink CA in the auxiliary carrier wave occupies resources; or,

and determining that the uplink CA in the auxiliary carrier wave occupies resources according to the pre-configuration.

With reference to the fourteenth or fifteenth possible implementation manner of the fourth aspect, in a sixteenth possible implementation manner of the fourth aspect, when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, the processor determines that a downlink subframe and a special subframe in the secondary carrier are unavailable when the uplink CA in the secondary carrier occupies resources for receiving the second uplink data.

With reference to the fourth aspect or any one of the foregoing possible implementations of the fourth aspect, in a seventeenth possible implementation of the fourth aspect, the transmitter is specifically configured to:

and after the UE is accessed to the main carrier cell, sending a Radio Resource Control (RRC) reconfiguration message to the UE, wherein the RRC reconfiguration message carries the information of the frequency point.

With reference to the fourth aspect or any one of the foregoing possible implementations of the fourth aspect, in an eighteenth possible implementation of the fourth aspect, the processor is specifically configured to:

and selecting the secondary carrier cell of the CA from a cell set configured by an Operation Support System (OSS), wherein the cell set comprises at least one cell in a second duplex mode.

In a nineteenth possible implementation manner of the fourth aspect, the entity is a base station.

In a fifth aspect, the present invention provides an entity comprising:

a processor configured to determine a primary carrier cell of a carrier aggregation, CA; the entity is configured to control a secondary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

a transmitter and a receiver for interacting data with a user equipment, UE, according to an indication of another entity; the other entity is for controlling a primary carrier cell of the CA.

With reference to the fifth aspect, in a first possible implementation manner of the fifth aspect, the transmitter and the receiver are specifically configured to:

and interacting data with the UE according to the indication of the other entity and the first duplex mode.

With reference to the first possible implementation manner of the fifth aspect, in a second possible implementation manner of the fifth aspect, the data is downlink data;

the receiver is specifically configured to receive, from the other entity, downlink data modulated by the other entity according to the first duplex mode, and the transmitter is specifically configured to send the downlink data modulated according to the first duplex mode to the UE; or,

the receiver is specifically configured to receive the downlink data from the other entity, and the transmitter is specifically configured to modulate the downlink data according to a first duplex mode and then send the modulated downlink data to the UE.

With reference to the first possible implementation manner of the fifth aspect, in a third possible implementation manner of the fifth aspect, the data is uplink data;

the receiver is specifically configured to receive, from the UE, uplink data modulated by the UE according to the first duplexing mode;

the transmitter is specifically configured to send the uplink data modulated according to the first duplex mode to the other entity.

With reference to the fifth aspect, in a fourth possible implementation manner of the fifth aspect, the transmitter and the receiver are specifically configured to:

and interacting data with the UE according to the second duplex mode according to the indication of the other entity.

With reference to the fourth possible implementation manner of the fifth aspect, in a fifth possible implementation manner of the fifth aspect, the data is downlink data;

the receiver is specifically configured to receive the downlink data from the other entity, and the transmitter is specifically configured to modulate the downlink data according to the second duplex mode and then send the modulated downlink data to the UE.

With reference to the fifth possible implementation manner of the fifth aspect, in a sixth possible implementation manner of the fifth aspect, the receiver is further configured to receive an uplink hybrid automatic repeat request HARQ indication, which is sent by the UE according to the feedback timing of the second duplex mode and is for the downlink data.

With reference to the second or fifth possible implementation manner of the fifth aspect, in a seventh possible implementation manner of the fifth aspect, the first duplex mode is a Time Division Duplex (TDD) mode, and when the second duplex mode is a Frequency Division Duplex (FDD) mode, the transmitter transmits the downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

With reference to the fourth possible implementation manner of the fifth aspect, in an eighth possible implementation manner of the fifth aspect, the data is uplink data;

the receiver is specifically configured to receive, from the UE, uplink data modulated by the UE according to the second duplex mode;

the transmitter is specifically configured to demodulate the uplink data modulated according to the second duplex mode and send the demodulated uplink data to the other entity.

With reference to the eighth possible implementation manner of the fifth aspect, in a ninth possible implementation manner of the fifth aspect, the transmitter is further configured to send, to the UE, a downlink HARQ indication for the uplink data according to the feedback timing of the second duplex mode.

With reference to the third or sixth possible implementation manner of the fifth aspect, in a tenth possible implementation manner of the fifth aspect, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the receiver receives the uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

With reference to the fifth aspect or any one of the foregoing possible implementations of the fifth aspect, in an eleventh possible implementation of the fifth aspect, the processor is further configured to:

determining that a CA in an auxiliary carrier occupies resources before interacting data with User Equipment (UE) according to an instruction of another entity;

the transmitter and the processor are specifically configured to, according to the indication of the other entity, interact data with the UE through resources occupied by the CA in the secondary carrier.

With reference to the eleventh possible implementation manner of the fifth aspect, in a twelfth possible implementation manner of the fifth aspect, the processor is further specifically configured to:

negotiating with the other entity to determine that the CA in the secondary carrier occupies the resource; or,

and determining that the CA in the auxiliary carrier wave occupies resources according to the pre-configuration.

With reference to the eleventh or twelfth possible implementation manner of the fifth aspect, in a thirteenth possible implementation manner of the fifth aspect, the transmitter and the receiver are further configured to interact data with the UE accessing the cell of the secondary carrier through other resources, except for the resource occupied by the CA, in the secondary carrier.

With reference to the twelfth possible implementation manner of the fifth aspect, in a fourteenth possible implementation manner of the fifth aspect, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode;

when the transmitter transmits data to the UE through the resources occupied by the CA in the auxiliary carrier, the uplink subframe and the special subframe in the auxiliary carrier are unavailable; or,

and when the receiver receives data from the UE through the resources occupied by the CA in the auxiliary carrier, the downlink subframe and the special subframe in the auxiliary carrier are unavailable.

With reference to the fifth aspect or any one of the foregoing possible implementations of the fifth aspect, in a fifteenth possible implementation of the fifth aspect, the processor is specifically configured to:

and determining a main carrier cell of the carrier aggregation CA according to the configuration of the operation support system OSS.

With reference to the fifth aspect or any one of the foregoing possible implementation manners of the fifth aspect, in a sixteenth possible implementation manner of the fifth aspect, the first duplex mode is a frequency division duplex, FDD, mode, and the second duplex mode is a time division duplex, TDD, mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

With reference to the fifth aspect or any one of the foregoing possible implementation manners of the fifth aspect, in a seventeenth possible implementation manner of the fifth aspect, the entity is a base station.

In a sixth aspect, the present invention provides a user equipment, comprising:

the processor is used for determining a main carrier cell and an auxiliary carrier cell of the carrier aggregation CA; the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

the system comprises a transmitter and a receiver, a first data processing module and a second data processing module, wherein the transmitter and the receiver are used for interacting first data with a first entity and interacting second data with the first entity through a second entity; the first entity is configured to control the primary carrier cell, and the second entity is configured to control the secondary carrier cell.

With reference to the sixth aspect, in a first possible implementation manner of the sixth aspect, the transmitter and the receiver are specifically configured to:

interacting first data with the first entity according to the first duplex mode;

With reference to the first possible implementation manner of the sixth aspect, in a second possible implementation manner of the sixth aspect, the second data is second downlink data;

the receiver is specifically configured to: receiving, from the second entity, second downlink data modulated by the second entity according to the second duplex mode, where the second downlink data is received by the second entity from the first entity.

With reference to the second possible implementation manner of the sixth aspect, in a third possible implementation manner of the sixth aspect, the transmitter is further configured to:

and sending an uplink hybrid automatic repeat request (HARQ) indication aiming at the second downlink data to the second entity according to the feedback time sequence of the second duplex mode.

With reference to the first possible implementation manner of the sixth aspect, in a fourth possible implementation manner of the sixth aspect, the second data is second uplink data;

the transmitter is specifically configured to: and sending the second uplink data modulated according to the second duplex mode to the second entity, wherein the modulated second uplink data is sent to the first entity by the second entity after being demodulated by the second entity.

With reference to the fourth possible implementation manner of the sixth aspect, in a fifth possible implementation manner of the sixth aspect, the receiver is further configured to:

receiving a downlink HARQ indication aiming at the second uplink data, which is sent by the second entity according to the feedback time sequence of the second duplex mode; or,

and receiving a downlink HARQ indication aiming at the second uplink data, which is sent by the first entity according to the feedback time sequence of the first duplex mode.

With reference to the sixth aspect or any one of the foregoing possible implementations of the sixth aspect, in a sixth possible implementation of the sixth aspect, the receiver is further configured to: after the user equipment accesses the main carrier cell, receiving information of a frequency point corresponding to an auxiliary carrier corresponding to the auxiliary carrier cell from the first entity;

the processor is specifically configured to: and determining a main carrier cell and an auxiliary carrier cell of the carrier aggregation CA according to the information of the frequency points received by the receiver from the first entity.

With reference to the sixth possible implementation manner of the sixth aspect, in a seventh possible implementation manner of the sixth aspect, the receiver is further specifically configured to: and receiving a Radio Resource Control (RRC) reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

With reference to the sixth aspect or any one of the foregoing possible implementation manners of the sixth aspect, in an eighth possible implementation manner of the sixth aspect, the first duplex mode is a frequency division duplex, FDD, mode, and the second duplex mode is a time division duplex, TDD, mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

In a seventh aspect, the present invention provides a carrier aggregation system, including: the entity of the fourth aspect, the other entity and the user equipment.

In an eighth aspect, the present invention provides a carrier aggregation system, including: the entity of the fifth aspect, the other entity and the user equipment.

In a ninth aspect, the present invention provides a carrier aggregation system, including: the user equipment of the sixth aspect, the first entity and the second entity.

The embodiment of the invention provides a solution for different-standard carrier CA, which improves the throughput rate and the utilization rate of spectrum resources.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a flowchart illustrating a carrier aggregation method according to an embodiment of the present invention;

fig. 2 is a flowchart illustrating a carrier aggregation method according to a second embodiment of the present invention;

fig. 3 is a flowchart illustrating a carrier aggregation method according to a third embodiment of the present invention;

fig. 4 is a schematic structural diagram of an entity 400 according to a fourth embodiment of the present invention;

fig. 5 is a schematic structural diagram of an entity 500 according to a fifth embodiment of the present invention;

fig. 6 is a schematic structural diagram of a UE600 according to a sixth embodiment of the present invention;

fig. 7 is a schematic structural diagram of an entity 700 according to a seventh embodiment of the present invention;

fig. 8 is a schematic structural diagram of an entity 800 according to an eighth embodiment of the present invention;

fig. 9 is a schematic structural diagram of a UE900 according to a ninth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a carrier aggregation system 100 according to a tenth embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Fig. 1 is a flowchart of a carrier aggregation method according to an embodiment of the present invention, and as shown in fig. 1, the method includes:

step 101, a first entity determines a secondary carrier cell of a CA; the first entity is configured to control a primary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode.

The first entity may be a base station (Evolved Node B, eNB for short) that controls the primary carrier cell, or a single board in the eNB that is used to control the primary carrier cell. Optionally, the first Duplex mode may be a Frequency Division Duplex (FDD) mode, and the second Duplex mode may be a Time Division Duplex (TDD) mode; alternatively, the first duplex mode may be a TDD mode, and then the second duplex mode may be an FDD mode.

Optionally, the determining, by the first entity, a secondary carrier cell of a carrier aggregation CA includes:

the first entity selects a secondary carrier cell of the CA in a cell set configured by an Operation Support System OSS (Operation Support System, OSS for short), where the cell set includes at least one cell in a second duplex mode. Optionally, the set of cells further includes at least one cell of the first duplex mode. For example, the cell set may include a cell identifier of each cell.

In one CA process, there may be one or more secondary carrier cells of the CA. Optionally, the OSS may also configure parameters such as a CA threshold, which is used by the first entity to determine when to start CA.

Step 102, the first entity interacts first data with the UE and interacts second data with the UE through a second entity; the second entity is configured to control a secondary carrier cell of the CA.

The second entity may be an eNB controlling the secondary carrier cell, or a single board in the eNB for controlling the secondary carrier cell. When there are multiple secondary carrier cells, the multiple secondary carrier cells may correspond to the same second entity, or may correspond to different second entities; and the first entity interacts data with the UE through the second entity corresponding to each secondary carrier cell.

Optionally, the CA may be an uplink CA or a downlink CA. When performing downlink CA, the first entity divides downlink data to be sent to the UE into first data and second data, and the first entity sends the second data to the second entity and the second entity sends the second data to the UE. When performing uplink CA, the UE divides uplink data into first data and second data, directly sends the first data to the first entity, sends the second data to the second entity, sends the second data to the first entity by the second entity, and then sends the first data and the second data to an upper layer after the first entity converges the first data and the second data.

It should be noted that, if there are N secondary carrier cells in a downlink CA, where N is a positive integer greater than 1, the first entity divides downlink data to be sent to the UE into (N + 1) parts, that is, first data and N parts of second data; and each second data corresponds to one auxiliary carrier cell and is sent to the UE through the auxiliary carrier corresponding to the auxiliary carrier cell. If there are N secondary carrier cells in the primary uplink CA, where N is a positive integer greater than 1, the UE divides uplink data into (N + 1) parts, that is, first data and N parts of second data; each second data corresponds to one auxiliary carrier cell and is sent to a corresponding second entity through an auxiliary carrier corresponding to the auxiliary carrier cell.

Optionally, when the first entity and the second entity are different enbs, the first entity and the second entity may interact through an X2 interface. Optionally, the first entity and the second entity may be different boards in the same eNB, and accordingly, the interaction between the first entity and the second entity may be implemented through an internal interface of the eNB.

In an alternative embodiment of the present invention, no modification of the air interface protocol is required. Accordingly, step 102 may be preceded by:

For example, the first entity may search a pre-configured cell information table according to a cell identifier of a secondary carrier cell obtained from the cell set, and determine a frequency range of a secondary carrier corresponding to the secondary carrier cell. Optionally, the first entity may also search a preconfigured cell information table, and determine the frequency point corresponding to the overlapped frequency range in the first duplex mode.

For example, when the first duplex mode is the FDD mode and the second duplex mode is the TDD mode, the frequency range corresponding to the secondary carrier overlaps with the frequency range of the first duplex mode, that is, the frequency range corresponding to the secondary carrier in the TDD mode overlaps with the frequency range in the FDD mode. For example, the overlapping frequency ranges are within the frequency range in which the first duplex mode and the second duplex mode overlap.

Table 1 is a frequency band table having overlapping frequency ranges in FDD mode and TDD mode in a working frequency band of an Evolved Universal Mobile Telecommunications System (UMTS) terrestrial Radio Access (E-UTRA) defined by 3GPP protocol.

TABLE 1

As shown in table 1, the operating Band (Band) 2 in FDD mode has an uplink operating Band of 1850MHz-1910MHz and a downlink operating Band of 1930-; band2 in FDD mode and Band35 in TDD mode have overlapping uplink frequency ranges, so the cell of Band2 in FDD mode can also be selected as the secondary carrier cell of uplink CA without changing air interface protocol mode. Similarly, the Band41 in TDD mode has an uplink frequency range of 2496MHz-2690MHz and a downlink frequency range, where 2500MHz-2570MHz overlaps with the uplink frequency range of Band7 in FDD mode, so the cell in the 2500MHz-2570MHz Band in TDD mode can be selected as the secondary carrier cell of uplink CA in this embodiment of the present invention, and similarly, 2620MHz-2690MHz in TDD mode overlaps with the downlink frequency range of Band7 in FDD mode, so the cell in the 2620MHz-2690MHz Band in TDD mode can be selected as the secondary carrier cell of downlink CA in this embodiment of the present invention.

As can be seen from the above analysis, the first entity determines that the frequency range of the secondary carrier corresponding to the secondary carrier cell may be within the frequency range overlapping in the downlink operating frequency bands of different duplex modes in table 1, or overlap with the frequency range overlapping in the downlink operating frequency bands of different duplex modes in table 1. For example, the first duplex mode is FDD mode, the second duplex mode is TDD mode, and the frequency range of the secondary carrier is 2620MHz-2630MHz, which is within the downlink operating frequency range of Band7 in FDD mode, i.e. overlapping with the frequency range of the first duplex mode, which is 2620MHz-2630 MHz. Also for example, the first duplex mode is FDD mode, the second duplex mode is TDD mode, the frequency range of the secondary carrier is 2610MHz-2630MHz, and the frequency range overlaps with the frequency range of the Band7 in FDD mode, that is, overlaps with the frequency range of the first duplex mode, and the overlapping frequency range is 2620MHz-2630 MHz.

Because the duplex mode of the secondary carrier cell is different from the duplex mode of the primary carrier cell, that is, the first duplex mode is different from the second duplex mode, the frequency point corresponding to the overlapped frequency range in the second duplex mode is different from the frequency point corresponding to the overlapped frequency range in the first duplex mode. For example, the second duplex mode is TDD mode, the frequency bin of the secondary carrier is 36950, the frequency Band of the secondary carrier is Band36, and the frequency range of the secondary carrier corresponds to 600 frequency bin in FDD mode and is Band2 in FDD mode.

Generally, after the UE accesses the main carrier cell, the first entity sends the corresponding frequency point to the UE. For example, the notifying the UE of the frequency point includes:

after the UE accesses the primary carrier cell, the first entity sends a Radio Resource Control (RRC) reconfiguration message to the UE, where the RRC reconfiguration message carries information of the frequency point.

Generally, the first entity may notify the UE of the information of the frequency point and may also notify the UE of a bandwidth corresponding to the overlapped frequency range, so that the UE determines the overlapped frequency range according to the information of the frequency point and the corresponding bandwidth.

Optionally, in a downlink CA scenario, the first data is first downlink data, and the second data is second downlink data; accordingly, the step 102 of the first entity interacting first data with the user equipment UE includes: and the first entity modulates the first downlink data according to the first duplex mode and sends the modulated first downlink data to the UE.

The interacting, in step 102, second data with the UE through a second entity includes:

Optionally, after the interacting the second data with the UE through the second entity in step 102, the method further includes:

the first entity receives an uplink Hybrid Automatic repeat request (HARQ) indication for the second downlink data, which is sent by the UE according to the feedback timing sequence of the first duplex mode.

In a scenario that an air interface protocol is not changed, the UE regards the downlink CA as a downlink CA of the same standard in the first duplex mode, and therefore, for the first downlink data and the second downlink data, the UE may send the corresponding uplink HARQ indication to the first entity according to the duplex mode of the primary carrier cell, that is, the feedback timing sequence of the first duplex mode. Optionally, the first entity determines, according to an uplink HARQ indication for the second downlink data, second downlink data that needs to be retransmitted, and instructs the second entity to transmit, to the UE, the retransmitted second downlink data modulated according to the first duplex mode through a secondary carrier. For example, the primary carrier cell is in a TDD mode, the secondary carrier cell is in an FDD mode, the first entity divides downlink data of the UE into first downlink data and second downlink data, the first entity modulates the second downlink data according to the TDD mode and then sends the second downlink data to the second entity, and the second entity sends the modulated second downlink data to the UE through the secondary carrier; the main carrier cell receives an uplink HARQ indication aiming at second downlink data, which is sent by the UE according to a feedback time sequence of a TDD mode, the first entity determines the second downlink data needing to be retransmitted according to the uplink HARQ indication, the second downlink data needing to be retransmitted is modulated according to the TDD mode and then sent to an eNB of an auxiliary carrier cell, and the second entity sends the modulated second downlink data needing to be retransmitted to the UE through an auxiliary carrier.

In the downlink CA scenario, the UE can receive downlink data and send uplink HARQ indication in the downlink CA manner of the same standard by transmitting the frequency point corresponding to the first duplex mode where the frequency range of the overlapping frequency range of the auxiliary carrier of the different standard and the first duplex mode corresponding to the main carrier is overlapped to the UE, and modulating the second downlink data transmitted to the UE by the auxiliary carrier according to the first duplex mode, so that a solution for the downlink CA of the different standard without changing the existing air interface protocol is provided, and the downlink throughput and the spectrum resource utilization rate are improved.

Optionally, in an uplink CA scenario, the first data is first uplink data, and the second data is second uplink data; accordingly, the step 102 of the first entity interacting first data with the user equipment UE includes: the first entity receives first uplink data from the UE, wherein the first uplink data is modulated by the UE according to the first duplex mode;

the interacting, in step 102, second data with the UE through a second entity includes: the first entity receives, from the second entity, second uplink data modulated by the UE according to the first duplexing mode, where the modulated second uplink data is sent to the second entity by the UE; and the interaction between the second entity and the UE is in the frequency range corresponding to the frequency point.

Optionally, after the interacting the second data with the UE through the second entity in step 102, the method further includes: and the first entity sends a downlink HARQ indication aiming at the second uplink data to the UE according to the feedback time sequence of the first duplex mode.

In the uplink CA scenario, the UE can send data in the uplink CA mode of the same standard by sending the frequency point corresponding to the first duplex mode where the overlapping frequency range of the auxiliary carrier of the different standard and the first duplex mode corresponding to the main carrier is in the first duplex mode to the UE, which provides a solution for uplink CA of the carrier of the different standard without changing the existing air interface protocol, and improves the uplink throughput and the spectrum resource utilization rate.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Accordingly, step 102 may be preceded by:

Compared with the embodiment that the air interface protocol does not need to be changed, the frequency range of the secondary carrier may overlap with the frequency range of the first duplex mode, and in this embodiment, the frequency range of the secondary carrier may overlap with the frequency range of the first duplex mode, or may not overlap with the frequency range of the first duplex mode.

and after the UE accesses the main carrier cell, the first entity sends an RRC reconfiguration message to the UE, wherein the RRC reconfiguration message carries the information of the frequency point.

Generally, the first entity may notify the UE of the information of the frequency point and may also notify the UE of the bandwidth of the secondary carrier, so that the UE determines the frequency range of the secondary carrier according to the information of the frequency point and the bandwidth.

Optionally, in a downlink CA scenario, the first data is first downlink data, and the second data is second downlink data;

accordingly, the step 102 of the first entity interacting the first data with the user equipment UE includes: the first entity modulates the first downlink data according to the first duplex mode and sends the modulated first downlink data to the UE;

the interacting, with the UE, of the second data through the second entity in step 102 includes:

Optionally, in this embodiment, there may be multiple ways for the UE to feed back the uplink HARQ indication for the second downlink data. Optionally, after the interacting the second data with the UE through the second entity in step 102, the method further includes:

and the first entity receives an uplink HARQ indication aiming at the second downlink data, which is sent by the UE according to the feedback time sequence of the first duplex mode.

Optionally, after the second data is interacted with the UE through the second entity in step 102, the UE may also send an uplink HARQ indication for the second downlink data to the second entity according to the feedback timing of the second duplex mode, where the second entity may determine the second downlink data that needs to be retransmitted according to the uplink HARQ indication, or send the uplink HARQ indication to the first entity, and the first entity determines the second downlink data that needs to be retransmitted according to the uplink HARQ indication.

Typically, the feedback timing of the first duplex mode and the feedback timing of the second duplex mode are different. If the UE sends the uplink HARQ indication for the second downlink data according to the feedback timing sequence of the first duplex mode, the UE may specifically modify the originally stored feedback timing sequence of the second duplex mode into the feedback timing sequence of the first duplex mode.

In the downlink CA scenario, the entity controlling the main carrier cell sends the frequency points of the different-system auxiliary carriers to the UE, the main carrier sends the downlink data of the first duplex mode to the UE, and the auxiliary carrier sends the downlink data of the second duplex mode to the UE.

Optionally, in an uplink CA scenario, the first data is first uplink data, and the second data is second uplink data;

accordingly, the step 102 of the first entity interacting the first data with the user equipment UE includes:

In the uplink CA scenario, the entity controlling the main carrier cell sends the frequency points of the different-system auxiliary carriers to the UE, so that the UE sends respective uplink data to the entity controlling the main carrier cell and the entity controlling the auxiliary carrier cell according to different duplex modes.

In the downlink CA scenario of each embodiment, if the downlink CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, before interacting the second data with the UE through the second entity in step 102, the method further includes:

Optionally, the determining, by the first entity, that the downlink CA in the secondary carrier occupies the resource includes:

When the first entity and the second entity are different enbs, the negotiation manner may be that the first entity notifies the second entity of a bandwidth required for sending the second downlink data through a message on an X2 interface, such as an X2 interface establishment Request (X2 Setup Request) message and an X2 interface establishment Response (X2 Setup Response) message, and the second entity determines that the downlink CA on the secondary carrier occupies the resource according to the required bandwidth. Optionally, the required bandwidth and the determined downlink CA occupation resource on the secondary carrier are identified by an extension field in the X2 interface setup request message and the X2 interface setup response message.

The pre-configuration may be that resources available for downlink CA in the secondary carrier are specified in the configuration of the OSS, that is, the downlink CA in the secondary carrier occupies the resources.

Optionally, when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, before interacting the second data with the UE through the second entity in step 102, the method further includes:

Because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, not all subframes in the TDD mode carrier can be used for downlink. Optionally, when the first duplex mode is a TDD mode and the second duplex mode is an FDD mode, the second entity sends the second downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

The subframes with the same position refer to subframes with the same subframe number in the same Transmission Time Interval (TTI).

In the scenarios of the uplink CA in the foregoing embodiments, if the uplink CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, before the interacting, by the second entity, the second data with the UE in step 102, further includes:

For example, the first entity may notify the UE of the determined resource occupied by the uplink CA in the secondary carrier when the UE initiates an uplink transmission request.

Optionally, the determining, by the first entity, that the uplink CA in the secondary carrier occupies the resource includes:

When the first entity and the second entity are different enbs, the negotiation manner may be that the first entity notifies the second entity of a bandwidth required for receiving the second uplink data through a message on an X2 interface, such as an X2 interface establishment Request (X2 Setup Request) message and an X2 interface establishment Response (X2 Setup Response) message, and the second entity determines that the uplink CA on the secondary carrier occupies the resource according to the required bandwidth. Optionally, the required bandwidth and the determined uplink CA occupied resources on the secondary carrier are identified by an extension field in the X2 interface setup request message and the X2 interface setup response message.

The pre-configuration may be that resources available for CA in the secondary carrier are specified in the configuration of the OSS, that is, resources occupied by CA in the secondary carrier.

Optionally, when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, before the interacting the second data with the UE through the second entity in step 102, the method further includes:

Optionally, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the second entity receives the uplink data by using a part of uplink subframes in the secondary carrier, where the positions of the part of uplink subframes are the same as the positions of the uplink subframes in the primary carrier.

The embodiment of the invention provides a solution for different-system carrier CA, which improves the throughput rate and the utilization rate of spectrum resources.

Fig. 2 is a flowchart illustrating a carrier aggregation method according to a second embodiment of the present invention, and as shown in fig. 2, the method includes:

step 201, the second entity determines a main carrier cell of the CA; the second entity is configured to control a secondary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode.

The second entity may be an eNB controlling the secondary carrier cell, or a single board in the eNB for controlling the secondary carrier cell. Optionally, the first duplex mode may be an FDD mode, and then the second duplex mode may be a TDD mode; alternatively, the first duplex mode may be a TDD mode, and then the second duplex mode may be an FDD mode.

In a CA process, there may be one or more secondary carrier cells of the CA, and the second entity corresponding to each secondary carrier cell may independently perform the method of the second embodiment without knowing which cell other secondary carrier cells are.

Optionally, the determining, by the second entity, a primary carrier cell of the CA includes: and the second entity determines the main carrier cell of the CA according to the configuration of the OSS.

Step 202, interacting data with the UE according to the indication of the first entity; the first entity is configured to control a primary carrier cell of the CA.

The first entity may be an eNB controlling the primary carrier cell, or a single board in the eNB for controlling the primary carrier cell. Optionally, when the first entity and the second entity are different enbs, the first entity and the second entity may interact through an X2 interface. Optionally, the first entity and the second entity may be different boards in the same eNB, and accordingly, the interaction between the first entity and the second entity may be implemented through an internal interface of the eNB.

In an optional embodiment of the present invention, a frequency range corresponding to the secondary carrier overlaps with a frequency range of the first duplex mode, and accordingly, an air interface protocol does not need to be changed. In this embodiment, step 202 may specifically include:

In general, the frequency ranges of the secondary carriers corresponding to the secondary carrier cells may be within the frequency ranges overlapped in the downlink operating frequency bands of different duplex modes in table 1, or may overlap with the frequency ranges overlapped in the downlink operating frequency bands of different duplex modes in table 1. For example, the first duplex mode is FDD mode, the second duplex mode is TDD mode, and the frequency range of the secondary carrier is 2620MHz-2630MHz, which is within the downlink operating frequency range of Band7 in FDD mode, i.e. overlapping with the frequency range of the first duplex mode, which is 2620MHz-2630 MHz. Also for example, the first duplex mode is FDD mode, the second duplex mode is TDD mode, the frequency range of the secondary carrier is 2610MHz-2630MHz, and the frequency range overlaps with the frequency range of the Band7 in FDD mode, that is, overlaps with the frequency range of the first duplex mode, and the overlapping frequency range is 2620MHz-2630 MHz.

Optionally, the first entity may further indicate the overlapping frequency range of the second entity, such that the second entity interacts with the UE within the overlapping frequency range.

Optionally, in a downlink CA scenario, the data is downlink data;

Correspondingly, after receiving the downlink data, the UE may send an uplink HARQ indication for the downlink data to the first entity according to a feedback timing of a first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink transmission, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the second entity transmits the downlink data by using a part of downlink subframes in the secondary carrier, and positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

In the above scenario of downlink CA, the entity controlling the secondary carrier cell sends downlink data modulated according to the duplex mode of the primary carrier cell to the UE, so that the UE can receive data and send uplink HARQ feedback in the downlink CA of the same system, a solution for the downlink CA of a different system without changing the existing air interface protocol is provided, and the downlink throughput and the spectrum resource utilization rate are improved.

Optionally, in an uplink CA scenario, the data is uplink data;

Correspondingly, after receiving the uplink data, the first entity may send a downlink HARQ indication for the uplink data to the UE according to a feedback timing of a first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the second entity receives the uplink data by using a part of uplink subframes in the secondary carrier, and positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

In the above uplink CA scenario, the entity controlling the secondary carrier cell receives, from the UE, the uplink data modulated by the UE according to the duplex mode of the primary carrier cell of different standards, and sends the uplink data to the entity controlling the primary carrier cell, so that the UE can send the data in the uplink CA of the same standard.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Correspondingly, step 202 may specifically include:

Optionally, in a downlink CA scenario, the data is downlink data;

Optionally, in this embodiment, there may be multiple ways for the UE to feed back the uplink HARQ indication for the downlink data. Optionally, after the second entity interacts data with the UE according to the indication of the first entity and in the second duplex mode, the method further includes:

and the second entity receives an uplink HARQ indication aiming at the downlink data, which is sent by the UE according to the feedback time sequence of the second duplex mode.

Alternatively, the UE may also send an uplink HARQ indication for the downlink data to the first entity according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink transmission, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the second entity transmits the downlink data by using a part of downlink subframes in the secondary carrier, and positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

The subframes with the same position refer to subframes with the same subframe number in the same TTI.

In the above downlink CA scenario, the entity controlling the secondary carrier cell modulates the downlink data provided by the different-system primary carrier cell according to the duplex mode of the secondary carrier cell and then sends the modulated downlink data to the UE, which provides a solution for the different-system downlink CA, and improves the downlink throughput and the spectrum resource utilization rate.

Optionally, in an uplink CA scenario, the data is uplink data;

Optionally, after the second entity receives the uplink data sent by the UE and modulated according to the second duplex mode, the method further includes:

Alternatively, the first entity may also send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the second entity receives the uplink data by using a part of uplink subframes in the secondary carrier, and positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

In the above uplink CA scenario, the entity controlling the secondary carrier cell receives uplink data sent by the UE and modulated according to the duplex mode of the secondary carrier cell, and sends the uplink data to the entity controlling the different-type primary carrier cell after demodulation.

In the CA scenario of each embodiment, if the CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, before step 202, the method further includes:

step 202, comprising:

Optionally, the determining, by the second entity, that the CA in the secondary carrier occupies the resource includes:

When the first entity and the second entity are different enbs, the negotiation manner may be that the first entity notifies the second entity of the bandwidth required by the CA through a message on an X2 interface, such as an X2 interface establishment Request (X2 Setup Request) message and an X2 interface establishment Response (X2 Setup Response) message, and the second entity determines that the CA on the secondary carrier occupies the resource according to the required bandwidth. Optionally, the required bandwidth and the determined CA occupied resources on the secondary carrier are identified by extension fields in the X2 interface setup request message and the X2 interface setup response message.

In order to improve the spectrum resource utilization of the secondary carrier, optionally, the method further includes:

Optionally, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode, because each subframe in the carrier in the TDD mode cannot be used for both uplink and downlink;

The second embodiment of the invention provides a solution for the different-system carrier CA, which improves the throughput rate and the utilization rate of spectrum resources.

Fig. 3 is a flowchart illustrating a carrier aggregation method according to a third embodiment of the present invention, as shown in fig. 3, the method includes:

step 301, UE determines a main carrier cell and an auxiliary carrier cell of a CA; the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode.

Optionally, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode; optionally, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

Generally, a first entity for controlling a primary carrier cell sends a frequency point notification corresponding to a secondary carrier to a UE after the UE accesses the primary carrier cell. Accordingly, step 301, comprises:

Optionally, the receiving, from the first entity, information of a frequency point corresponding to a secondary carrier corresponding to the secondary carrier cell includes:

and the UE receives an RRC reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

The first entity may be an eNB controlling the primary carrier cell, or a single board in the eNB for controlling the primary carrier cell. Optionally, the RRC reconfiguration message also carries a bandwidth of the secondary carrier, and the UE may determine a frequency range of the secondary carrier according to the information of the frequency point and the bandwidth.

Step 302, the UE interacts first data with a first entity and interacts second data with the first entity through a second entity; the first entity is configured to control the primary carrier cell, and the second entity is configured to control the secondary carrier cell.

The second entity may be an eNB controlling the secondary carrier cell, or a single board in the eNB for controlling the secondary carrier cell. In one CA process, there may be one or more secondary carrier cells; when there are multiple secondary carrier cells, the multiple secondary carrier cells may correspond to the same second entity, or may correspond to different second entities; and the UE respectively interacts data with the first entity and a second entity corresponding to each secondary carrier cell.

Optionally, the UE interacts with the first entity with the first data, including:

In a downlink CA scenario, the second data is second downlink data;

Optionally, after the interacting, by the second entity, the second data with the first entity according to the second duplex mode, the method further includes:

and the UE sends an uplink HARQ indication aiming at the second downlink data to the second entity according to the feedback time sequence of the second duplex mode.

In the above downlink CA scenario, the UE receives downlink data modulated according to different duplex modes and respectively sent by entities of a primary carrier cell and a secondary carrier cell of different duplex modes, which provides a solution for the downlink CA of the different-system carrier, and improves downlink throughput and spectrum resource utilization.

In an uplink CA scenario, the second data is second uplink data;

In the above uplink CA scenario, the UE sends uplink data modulated according to different duplex modes to the first entity controlling the primary carrier cell and the second entity controlling the secondary carrier cell, respectively, which provides a solution for the uplink CA of the different-system frequency band carrier, and improves the uplink throughput and the spectrum resource utilization.

The third embodiment of the invention provides a solution for the CA of the heterogeneous carriers, and the throughput rate and the utilization rate of spectrum resources are improved.

Fig. 4 is a schematic structural diagram of an entity 400 according to a fourth embodiment of the present invention. As shown in fig. 4, the entity 400 includes:

a processor 41 configured to determine a secondary carrier cell of the CA; the entity is configured to control a primary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode;

a transmitter 42 and a receiver 43 for interacting first data with a UE and second data with the UE through another entity; the other entity is for controlling a secondary carrier cell of the CA.

The processor 41 is specifically configured to: selecting a secondary carrier cell of the CA in a cell set configured by an OSS, wherein the cell set comprises at least one cell of a second duplex mode.

Optionally, the entity is an eNB. Or, the entity is a single board in the eNB for controlling the primary carrier cell.

In an alternative embodiment of the present invention, no modification of the air interface protocol is required. Accordingly, processor 41 is further configured to:

before interacting first data with UE, determining a frequency range of a secondary carrier corresponding to the secondary carrier cell, wherein the frequency range corresponding to the secondary carrier overlaps with the frequency range of the first duplex mode;

the transmitter 42 is further configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact data according to the first duplex mode.

Optionally, the emitter 42 is specifically configured to:

the emitter 42 is specifically configured to:

Optionally, the receiver is further configured to: and receiving an uplink HARQ indication aiming at the second downlink data, which is sent by the UE according to the feedback time sequence of the first duplex mode.

the receiver 43 is specifically configured to:

Optionally, the transmitter 42 is further configured to send a downlink HARQ indication for the second uplink data to the UE according to the feedback timing of the first duplex mode.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Accordingly, processor 41 is further configured to:

before first data is interacted with UE, determining a frequency point corresponding to the frequency range of the secondary carrier corresponding to the secondary carrier cell in the second duplex mode;

the transmitter 42 is further configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact data according to the second duplex mode.

Optionally, the emitter 42 is specifically configured to:

the emitter 42 is specifically configured to:

Optionally, in this embodiment, there may be multiple ways for the UE to feed back the uplink HARQ indication for the second downlink data. Optionally, the receiver 43 is further configured to: and receiving an uplink HARQ indication aiming at the second downlink data, which is sent by the UE according to the feedback time sequence of the first duplex mode.

Optionally, the UE may also send an uplink HARQ indication for the second downlink data to the other entity according to the feedback timing of the second duplex mode.

the receiver 43 is specifically configured to:

In the downlink CA scenario of each embodiment, the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink. Optionally, when the first duplex mode is a TDD mode and the second duplex mode is an FDD mode, the other entity sends the second downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

If the downlink CA does not need to occupy all resources of the auxiliary carrier, other resources on the auxiliary carrier can be used by the UE accessed to the auxiliary carrier cell. Optionally, the processor 41 is further configured to:

before the transmitter 42 and the receiver 43 interact the second data with the UE through another entity, determining that the downlink CA in the secondary carrier occupies resources, where the downlink CA in the secondary carrier occupies resources used for sending the second downlink data and is not used for the another entity to interact data with the UE accessing the secondary carrier cell.

Optionally, the processor 41 is further specifically configured to:

Optionally, when the first duplex mode is a Frequency Division Duplex (FDD) mode, and the second duplex mode is a Time Division Duplex (TDD) mode, the processor 41 is further configured to:

In the uplink CA scenario of each embodiment, the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink. Optionally, when the first duplex mode is a TDD mode and the second duplex mode is an FDD mode, the other entity receives the second uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

If the uplink CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, the processor 41 is further configured to:

Optionally, the processor 41 is further specifically configured to:

Optionally, when the first duplex mode is a Frequency Division Duplex (FDD) mode and the second duplex mode is a Time Division Duplex (TDD) mode, the processor 41 determines that the downlink subframe and the special subframe in the secondary carrier are unavailable when the uplink CA in the secondary carrier occupies the resource for receiving the second uplink data.

The fourth embodiment of the invention provides a solution for the CA of the heterogeneous carriers, and the throughput rate and the utilization rate of spectrum resources are improved.

Fig. 5 is a schematic structural diagram of an entity 500 according to a fifth embodiment of the present invention. As shown in fig. 5, the entity 500 includes:

a processor 51 for determining a primary carrier cell of CA; the entity is configured to control a secondary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

a transmitter 52 and a receiver 53 for interacting data with the UE according to an indication of another entity; the other entity is for controlling a primary carrier cell of the CA.

Optionally, the first duplex mode is an FDD mode, and the second duplex mode is a TDD mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

For example, the entity is a base station eNB, or a single board in the eNB for controlling the secondary carrier cell.

Optionally, the processor 51 is specifically configured to: and determining a main carrier cell of the carrier aggregation CA according to the configuration of the OSS.

In an optional embodiment of the present invention, a frequency range corresponding to the secondary carrier overlaps with a frequency range of the first duplex mode, and accordingly, an air interface protocol does not need to be changed. In this embodiment, the transmitter 52 and the receiver 53 are specifically configured to:

Optionally, another entity may also indicate the overlapping frequency ranges of the entities, such that the entities interact with the UE within the overlapping frequency ranges.

Optionally, in a downlink CA scenario, the data is downlink data;

the receiver 53 is specifically configured to receive, from the other entity, the downlink data modulated by the other entity according to the first duplex mode, and the transmitter 52 is specifically configured to transmit, to the UE, the downlink data modulated according to the first duplex mode; or,

the receiver 53 is specifically configured to receive the downlink data from the other entity, and the transmitter 52 is specifically configured to modulate the downlink data according to the first duplex mode and then send the modulated downlink data to the UE.

Correspondingly, after receiving the downlink data, the UE may send an uplink HARQ indication for the downlink data to the other entity according to a feedback timing of the first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink transmission, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the transmitter 52 transmits the downlink data by using a part of downlink subframes in the secondary carrier, where the positions of the part of downlink subframes are the same as the positions of the downlink subframes in the primary carrier.

Optionally, in an uplink CA scenario, the data is uplink data;

the receiver 53 is specifically configured to receive, from the UE, the uplink data modulated by the UE according to the first duplexing mode;

the transmitter 52 is specifically configured to send the uplink data modulated according to the first duplexing mode to the other entity.

Correspondingly, after receiving the uplink data, the other entity may send a downlink HARQ indication for the uplink data to the UE according to a feedback timing of the first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the receiver 53 receives the uplink data by using a part of uplink subframes in the secondary carrier, where the positions of the part of uplink subframes are the same as the positions of the uplink subframes in the primary carrier.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Accordingly, the transmitter 52 and the receiver 53 are specifically configured to:

Optionally, in a downlink CA scenario, the data is downlink data;

the receiver 53 is specifically configured to receive the downlink data from the other entity, and the transmitter 52 is specifically configured to modulate the downlink data according to the second duplex mode and then send the modulated downlink data to the UE.

Optionally, in this embodiment, there may be multiple ways for the UE to feed back the uplink HARQ indication for the downlink data. Optionally, the receiver 53 is further configured to receive an uplink HARQ indication for the downlink data, which is sent by the UE according to the feedback timing of the second duplex mode.

Alternatively, the UE may also send an uplink HARQ indication for the downlink data to another entity according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink transmission, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the transmitter 52 transmits the downlink data by using a part of downlink subframes in the secondary carrier, where the positions of the part of downlink subframes are the same as the positions of the downlink subframes in the primary carrier.

Optionally, the UE may also send an uplink HARQ indication for the downlink data to the other entity according to the feedback timing of the first duplex mode.

Optionally, in an uplink CA scenario, the data is uplink data;

the receiver 53 is specifically configured to receive, from the UE, the uplink data modulated by the UE according to the second duplex mode;

the transmitter 52 is specifically configured to demodulate the uplink data modulated according to the second duplex mode and then send the demodulated uplink data to the other entity.

Optionally, the transmitter 52 is further configured to send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the second duplex mode.

Alternatively, another entity may also send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the receiver 53 receives the uplink data by using a part of uplink subframes in the secondary carrier, where the positions of the part of uplink subframes are the same as the positions of the uplink subframes in the primary carrier.

On the basis of the above embodiments, if the CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, the processor 51 is further configured to:

determining that a CA in an auxiliary carrier occupies resources before interacting data with the UE according to an indication of another entity;

the transmitter 52 and the processor 53 are specifically configured to, according to the indication of the other entity, interact data with the UE through the CA occupied resource in the secondary carrier.

Optionally, the processor 51 is further specifically configured to:

When the entity and the other entity are different enbs, the negotiation manner may be to notify the entity of the bandwidth required by the CA through a message on an X2 interface, such as an X2 interface Setup Request (X2 Setup Request) message and an X2 interface Setup Response (X2 Setup Response) message, by the other entity, and the entity determines that the CA on the secondary carrier occupies the resource according to the required bandwidth. Optionally, the required bandwidth and the determined CA occupied resources on the secondary carrier are identified by extension fields in the X2 interface setup request message and the X2 interface setup response message.

In order to improve the spectrum resource utilization rate of the secondary carrier, optionally, the transmitter 52 and the receiver 53 are further configured to interact data with the UE accessing the cell of the secondary carrier through other resources in the secondary carrier except the resource occupied by the CA.

Optionally, the first duplex mode is a Frequency Division Duplex (FDD) mode, and the second duplex mode is a Time Division Duplex (TDD) mode, because each subframe in a carrier in the TDD mode cannot be used for both uplink and downlink;

when the transmitter 52 transmits data to the UE through the resource occupied by the CA in the secondary carrier, the uplink subframe and the special subframe in the secondary carrier are not available; or,

when the receiver 53 receives data from the UE through the CA occupying resource in the secondary carrier, the downlink subframe and the special subframe in the secondary carrier are not available.

The fifth embodiment of the invention provides a solution for the CA of the heterogeneous carriers, and the throughput rate and the utilization rate of spectrum resources are improved.

Fig. 6 is a schematic structural diagram of a UE600 according to a sixth embodiment of the present invention. As shown in fig. 6, the UE600 includes:

a processor 61, configured to determine a primary carrier cell and a secondary carrier cell of a CA; the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

a transmitter 62 and a receiver 63 for interacting first data with a first entity and interacting second data with the first entity through a second entity; the first entity is configured to control the primary carrier cell, and the second entity is configured to control the secondary carrier cell.

Generally, an entity for controlling a primary carrier cell sends a frequency point notification corresponding to a secondary carrier to a UE after the UE accesses the primary carrier cell. Accordingly, the receiver 63 is also configured to: after the UE600 accesses the primary carrier cell, receiving, from the first entity, information of a frequency point corresponding to a secondary carrier corresponding to the secondary carrier cell;

the processor 61 is specifically configured to: and determining a main carrier cell and an auxiliary carrier cell of the CA according to the information of the frequency points received by the receiver from the first entity.

Optionally, the receiver 63 is further specifically configured to: and receiving an RRC reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

Optionally, the RRC reconfiguration message also carries a bandwidth of the secondary carrier, and the UE may determine a frequency range of the secondary carrier according to the information of the frequency point and the bandwidth.

The first entity may be an eNB controlling the primary carrier cell, or a single board in the eNB for controlling the primary carrier cell. The second entity may be an eNB controlling the secondary carrier cell, or a single board in the eNB for controlling the secondary carrier cell. In one CA process, there may be one or more secondary carrier cells; when there are multiple secondary carrier cells, the multiple secondary carrier cells may correspond to the same second entity, or may correspond to different second entities; and the UE respectively interacts data with the first entity and a second entity corresponding to each secondary carrier cell.

Optionally, the transmitter 62 and the receiver 63 are specifically configured to:

In a downlink CA scenario, the second data is second downlink data;

the receiver 63 is specifically configured to: receiving, from the second entity, second downlink data modulated by the second entity according to the second duplex mode, where the second downlink data is received by the second entity from the first entity.

Optionally, the transmitter 62 is further configured to:

and sending an uplink HARQ indication aiming at the second downlink data to the second entity according to the feedback time sequence of the second duplex mode.

In an uplink CA scenario, the second data is second uplink data;

the emitter 62 is specifically configured to: and sending the second uplink data modulated according to the second duplex mode to the second entity, wherein the modulated second uplink data is sent to the first entity by the second entity after being demodulated by the second entity.

Optionally, the receiver 63 is further configured to:

The sixth embodiment of the invention provides a solution for the CA of the heterogeneous carriers, which improves the throughput rate and the utilization rate of spectrum resources.

Fig. 7 is a schematic structural diagram of an entity 700 according to a seventh embodiment of the present invention. As shown in fig. 7, the entity 700 includes:

a first determining module 71, configured to determine a secondary carrier cell of CA; the entity is configured to control a primary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, and the secondary carrier cell is a cell in a second duplex mode, where the first duplex mode is different from the second duplex mode;

an interaction module 72, configured to interact first data with a UE and interact second data with the UE through another entity; the other entity is for controlling a secondary carrier cell of the CA.

Optionally, the first determining module 71 is specifically configured to: selecting a secondary carrier cell of the CA in a cell set configured by an OSS, wherein the cell set comprises at least one cell of a second duplex mode.

In an alternative embodiment of the present invention, no modification of the air interface protocol is required. Accordingly, the entity 700 further comprises:

a second determining module, configured to determine, before the interacting module 72 interacts with the UE with the first data, a frequency range of a secondary carrier corresponding to the secondary carrier cell, where the frequency range corresponding to the secondary carrier overlaps with the frequency range of the first duplex mode;

a third determining module, configured to determine a frequency point corresponding to the overlapped frequency range in the first duplex mode;

and a notification module, configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact data according to the first duplex mode.

Optionally, the notifying module is specifically configured to send an RRC reconfiguration message to the UE after the UE accesses the primary carrier cell, where the RRC reconfiguration message carries the information of the frequency point.

the interaction module 72 includes:

a first transmitting unit, configured to modulate the first downlink data according to the first duplex mode, and transmit the modulated first downlink data to the UE;

a second sending unit, configured to modulate the second downlink data according to the first duplex mode, and send the modulated second downlink data to the UE through the other entity; or, the second downlink data is provided to the other entity and modulated according to the first duplexing mode, and the modulated second downlink data is sent to the UE by the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

Optionally, the entity 700 further comprises:

a receiving module, configured to receive an uplink HARQ indication for the second downlink data, where the uplink HARQ indication is sent by the UE according to the feedback timing of the first duplex mode.

the interaction module 72 includes:

a first receiving unit, configured to receive, from the UE, first uplink data modulated by the UE according to the first duplexing mode;

a second receiving unit, configured to receive, from the other entity, second uplink data modulated by the UE according to the first duplexing mode, where the modulated second uplink data is sent by the UE to the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Accordingly, the entity 700 further comprises:

a fourth determining module, configured to determine, before the interacting module 72 interacts the first data with the UE, a frequency point corresponding to the frequency range of the secondary carrier corresponding to the secondary carrier cell in the second duplex mode;

and a notification module, configured to notify the UE of the frequency point, where the frequency point is used for the UE and the other entity to interact data according to the second duplex mode.

Generally, after the UE accesses the main carrier cell, the first entity sends the corresponding frequency point to the UE. For example, the notification module is specifically configured to:

and after the UE is accessed to the main carrier cell, sending an RRC reconfiguration message to the UE, wherein the RRC reconfiguration message carries the information of the frequency point.

the interaction module 72 includes:

a third sending unit, configured to modulate the first downlink data according to the first duplex mode, and send the modulated first downlink data to the UE;

a fourth sending unit, configured to provide the second downlink data to the other entity, and after the second downlink data is modulated according to the second duplex mode, send the modulated second downlink data to the UE by the other entity; and the interaction between the other entity and the UE is in the frequency range corresponding to the frequency point.

Optionally, in this embodiment, there may be multiple ways for the UE to feed back the uplink HARQ indication for the second downlink data. Optionally, the entity further comprises:

the interaction module 72 includes:

a third receiving unit, configured to receive, from the UE, first uplink data modulated by the UE according to the first duplexing mode;

a fourth receiving unit, configured to receive second uplink data from the other entity, where the second uplink data is sent by the other entity after demodulating the second uplink data received from the UE and modulated by the UE according to the second duplex mode.

Optionally, the entity further comprises: a sending module, configured to send, to the UE, a downlink HARQ indication for the second uplink data according to the feedback timing of the first duplex mode.

In the downlink CA scenario of each embodiment, if the downlink CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, the entity 700 further comprises:

a fifth determining module, configured to determine that the downlink CA in the auxiliary carrier occupies the resource before the interacting module 72 interacts the second data with the UE through another entity, where the resource occupied by the downlink CA in the auxiliary carrier is used to send the second downlink data and is not used for the another entity to interact data with the UE accessing the auxiliary carrier cell.

Optionally, the fifth determining module is specifically configured to:

Optionally, when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, the fifth determining module determines that the uplink subframe and the special subframe in the secondary carrier are unavailable when the downlink CA in the secondary carrier occupies the resource for transmitting the second downlink data.

Because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, not all subframes in the TDD mode carrier can be used for downlink. Optionally, when the first duplex mode is a TDD mode and the second duplex mode is an FDD mode, the other entity sends the second downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

In the scenarios of the uplink CA in the foregoing embodiments, if the uplink CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, the entity 700 further comprises:

a sixth determining module, configured to determine, before the interacting module 72 interacts the second data with the UE through another entity, that the uplink CA in the auxiliary carrier occupies the resource, and schedule the UE to send the second uplink data through the uplink CA in the auxiliary carrier, where the uplink CA in the auxiliary carrier occupies the resource and is not used for the another entity to interact the data with the UE accessing the auxiliary carrier cell.

Optionally, the sixth determining module is specifically configured to:

Optionally, when the first duplex mode is a Frequency Division Duplex (FDD) mode and the second duplex mode is a Time Division Duplex (TDD) mode, the sixth determining module determines that the downlink subframe and the special subframe in the secondary carrier are unavailable when the uplink CA in the secondary carrier occupies the resource for receiving the second uplink data.

Optionally, the first duplex mode is a TDD mode, and when the second duplex mode is an FDD mode, the other entity receives the second uplink data by using a part of uplink subframes in the secondary carrier, where the positions of the part of uplink subframes are the same as the positions of the uplink subframes in the primary carrier.

The seventh embodiment of the present invention provides a solution for a heterogeneous carrier CA, which improves throughput and spectrum resource utilization.

Fig. 8 is a schematic diagram of an entity 800 according to an eighth embodiment of the present invention. As shown in fig. 8, the entity 800 includes:

the first determining module 81 determines the primary carrier cell of the CA; the entity is configured to control a secondary carrier cell of the CA, where the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

the first interaction module 82 interacts data with the user equipment UE according to the indication of another entity; the other entity is for controlling a primary carrier cell of the CA.

For example, the first determining module 81 is specifically configured to: and the second entity determines a main carrier cell of the carrier aggregation CA according to the configuration of the OSS.

In an optional embodiment of the present invention, a frequency range corresponding to the secondary carrier overlaps with a frequency range of the first duplex mode, and accordingly, an air interface protocol does not need to be changed. In this embodiment, the first interaction module 82 is specifically configured to: and interacting data with the UE according to the indication of the other entity and the first duplex mode.

Optionally, in a downlink CA scenario, the data is downlink data;

the first interaction module 82 includes:

a first receiving unit, configured to receive, from the other entity, downlink data modulated by the other entity according to a first duplex mode; a first sending unit, configured to send the downlink data modulated according to the first duplexing mode to the UE; or,

a second receiving unit, configured to receive the downlink data from the other entity; and the second sending unit is used for sending the downlink data to the UE after modulating the downlink data according to the first duplex mode.

Correspondingly, after receiving the downlink data, the UE may send an uplink HARQ indication for the downlink data to the other entity according to a feedback timing of the first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for downlink transmission, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the second transmitting unit transmits the downlink data by using a part of downlink subframes in the secondary carrier, where positions of the part of downlink subframes are the same as positions of downlink subframes in the primary carrier.

Optionally, in an uplink CA scenario, the data is uplink data;

the first interaction module 82 includes:

a third receiving unit, configured to receive, from the UE, uplink data modulated by the UE according to the first duplexing mode;

a third sending unit, configured to send the uplink data modulated according to the first duplex mode to the other entity.

Correspondingly, after receiving the uplink data, the other entity may send a downlink HARQ indication for the uplink data to the UE according to a feedback timing of the first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the third receiving unit receives the uplink data by using a part of uplink subframes in the secondary carrier, where the positions of the part of uplink subframes are the same as the positions of the uplink subframes in the primary carrier.

In yet another alternative embodiment of the present invention, the air interface protocol is changed. Accordingly, the first interaction module 82 is configured to: and the second entity interacts data with the UE according to the indication of the other entity and the second duplex mode.

Optionally, in a downlink CA scenario, the data is downlink data;

the first interaction module 82 includes:

a fourth receiving unit, configured to receive the downlink data from the other entity; and a fourth sending unit, configured to send the downlink data to the UE after modulating the downlink data according to the second duplex mode.

Optionally, the entity 800 further comprises: and a receiving module, configured to receive an uplink HARQ indication for the downlink data, which is sent by the UE according to the feedback timing of the second duplex mode.

Alternatively, the UE may also send an uplink HARQ indication for the downlink data to another entity according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing sequence of the TDD mode is different from the feedback timing sequence of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for sending data in the downlink, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the fourth sending unit sends the downlink data by using a part of downlink subframes in the auxiliary carrier, and the positions of the part of downlink subframes are the same as the positions of the downlink subframes in the main carrier.

Optionally, in an uplink CA scenario, the data is uplink data;

the first interaction module 82 includes:

a fifth receiving unit, configured to receive, from the UE, uplink data modulated by the UE according to the second duplex mode;

a fifth sending unit, configured to demodulate the uplink data modulated according to the second duplex mode and send the demodulated uplink data to the other entity.

Optionally, the entity 800 further comprises:

and a sending module, configured to send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the second duplex mode.

Alternatively, another entity may also send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the first duplex mode. In this scenario, because the feedback timing of the TDD mode is different from the feedback timing of the FDD mode, and not all subframes in the carrier of the TDD mode can be used for uplink reception, when the first duplex mode is the TDD mode and the second duplex mode is the FDD mode, the fifth receiving unit receives the uplink data by using a part of uplink subframes in the secondary carrier, where positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

On the basis of the above embodiments, if the CA does not need to occupy all resources of the secondary carrier, other resources on the secondary carrier may also be used by the UE accessing the secondary carrier cell. Optionally, the entity 800 further comprises: a second determining module, configured to determine that a CA in an auxiliary carrier occupies a resource;

the first interaction module 82 is specifically configured to: and according to the indication of the other entity, data is interacted with the UE through the resource occupied by the CA in the auxiliary carrier.

Optionally, the second determining module is specifically configured to:

In order to improve the spectrum resource utilization of the secondary carrier, optionally, the entity 800 further includes:

and the second interaction module is used for interacting data with the UE accessed to the auxiliary carrier cell through other resources except the resources occupied by the CA in the auxiliary carrier.

when the second interactive module 82 sends data to the UE by using the resource occupied by the CA in the secondary carrier, the uplink subframe and the special subframe in the secondary carrier are not available; or,

when the second interactive module 82 receives data from the UE through the resource occupied by the CA in the secondary carrier, the downlink subframe and the special subframe in the secondary carrier are not available.

The eighth embodiment of the invention provides a solution for the CA of the heterogeneous carriers, and the throughput rate and the utilization rate of spectrum resources are improved.

Fig. 9 is a schematic structural diagram of a UE900 according to a ninth embodiment of the present invention. As shown in fig. 9, the UE900 includes:

a determining module 91, configured to determine a primary carrier cell and a secondary carrier cell of a CA; the primary carrier cell is a cell in a first duplex mode, the secondary carrier cell is a cell in a second duplex mode, and the first duplex mode is different from the second duplex mode;

an interaction module 92, configured to interact first data with a first entity, and interact second data with the first entity through a second entity; the first entity is configured to control the primary carrier cell, and the second entity is configured to control the secondary carrier cell.

Generally, a first entity for controlling a primary carrier cell sends a frequency point notification corresponding to a secondary carrier to a UE after the UE accesses the primary carrier cell. Accordingly, the determining module 91 is specifically configured to:

and after the UE900 accesses the primary carrier cell, receiving, from the first entity, information of a frequency point corresponding to a secondary carrier corresponding to the secondary carrier cell.

Optionally, the determining module 91 is specifically configured to: and receiving an RRC reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

Optionally, the interaction module 92 comprises:

the first interaction unit is used for interacting first data with the first entity according to the first duplex mode;

and the second interaction unit is used for interacting second data with the first entity through a second entity according to the second duplex mode.

In a downlink CA scenario, the second data is second downlink data;

the second interaction unit is specifically configured to: receiving, from the second entity, second downlink data modulated by the second entity according to the second duplex mode, where the second downlink data is received by the second entity from the first entity.

Optionally, the UE900 further includes:

a sending module, configured to send an uplink HARQ indication for the second downlink data to the second entity according to the feedback timing of the second duplex mode.

In an uplink CA scenario, the second data is second uplink data;

the second interaction unit is specifically configured to: and sending the second uplink data modulated according to the second duplex mode to the second entity, wherein the modulated second uplink data is sent to the first entity by the second entity after being demodulated by the second entity.

Optionally, the UE900 further includes:

a receiving module, configured to receive a downlink HARQ indication for the second uplink data, sent by the second entity according to the feedback timing of the second duplex mode; or, the downlink HARQ indicator is configured to receive the downlink HARQ indicator, which is sent by the first entity according to the feedback timing of the first duplex mode and is for the second uplink data.

The ninth embodiment of the present invention provides a solution for a heterogeneous carrier CA, which improves throughput and spectrum resource utilization.

Fig. 10 is a schematic structural diagram of a carrier aggregation system 100 according to an embodiment of the present invention. As shown in fig. 7, a system embodiment comprises: entity 11, another entity 12, and UE 13.

In an alternative scenario, the entity 11, the other entity 12, and the UE13 are the entity 400, the other entity, and the UE, respectively, according to the fourth embodiment of the present invention.

In yet another alternative scenario, the entity 11, the other entity 12, and the UE13 are the entity 500, the other entity, and the UE, respectively, according to the fifth embodiment of the present invention.

In yet another alternative scenario, the entity 11, the other entity 12, and the UE13 are the first entity, the second entity, and the UE600 according to the sixth embodiment of the present invention, respectively.

In yet another alternative scenario, the entity 11, the other entity 12, and the UE13 are the entity 700, the other entity, and the UE, respectively, according to the seventh embodiment of the present invention.

In yet another alternative scenario, the entity 11, the other entity 12, and the UE13 are the entity 800, the other entity, and the UE, respectively, according to the eighth embodiment of the present invention.

In yet another alternative scenario, the entity 11, the other entity 12, and the UE13 are the first entity, the second entity, and the UE900 according to the ninth embodiment of the present invention, respectively.

The embodiment of the invention provides a solution for the CA of the heterogeneous carrier, and the throughput rate and the utilization rate of the spectrum resources are improved.

Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for carrier aggregation, comprising:

2. The method of claim 1, wherein before the first entity interacts with the UE for the first data, the method further comprises:

3. The method of claim 2, wherein the first data is first downlink data and the second data is second downlink data;

the interacting, by the second entity, with the UE of the second data includes:

4. The method of claim 2, wherein the first data is first uplink data and the second data is second uplink data;

5. The method of claim 1, wherein before the first entity interacts with the UE for the first data, the method further comprises:

6. The method of claim 5, wherein the first data is first downlink data and the second data is second downlink data;

the interacting, by the second entity, with the UE of the second data includes:

7. The method of claim 5, wherein the first data is first uplink data and the second data is second uplink data;

the interacting, by the second entity, with the UE of the second data includes:

8. The method of claim 3 or 6, wherein after the interacting the second data with the UE via the second entity, further comprising:

9. The method of claim 8, wherein the first duplex mode is a Time Division Duplex (TDD) mode, and the second duplex mode is a Frequency Division Duplex (FDD) mode, wherein the second entity transmits the second downlink data using a part of downlink subframes in the secondary carrier, and the position of the part of downlink subframes is the same as the position of the downlink subframes in the primary carrier.

10. The method of claim 4 or 7, wherein after the interacting the second data with the UE via the second entity, further comprising:

11. The method of claim 10, wherein the first duplex mode is a TDD mode, and wherein when the second duplex mode is an FDD mode, the second entity receives the second uplink data using a part of uplink subframes in the secondary carrier, and wherein positions of the part of uplink subframes are the same as positions of uplink subframes in the primary carrier.

12. The method of claim 3, 6 or 8, wherein before interacting the second data with the UE via the second entity, further comprising:

13. The method of claim 12, wherein the determining, by the first entity, that the downlink CA in the secondary carrier occupies the resource comprises:

14. The method of claim 12 or 13, wherein when the first duplex mode is an FDD mode and the second duplex mode is a TDD mode, before the interacting of the second data with the UE through the second entity, further comprises:

15. The method of claim 4, 7 or 10, wherein before interacting the second data with the UE via the second entity, further comprising:

16. The method of claim 15, wherein the determining, by the first entity, that the uplink CA in the secondary carrier occupies the resource comprises:

17. The method of claim 15 or 16, wherein the first duplex mode is a Frequency Division Duplex (FDD) mode, and wherein the second duplex mode is a Time Division Duplex (TDD) mode, and wherein before the interacting the second data with the UE by the second entity, the method further comprises:

18. The method according to any one of claims 2 to 17, wherein the notifying the UE of the frequency point comprises:

19. The method according to any of claims 1-18, wherein the determining, by the first entity, the secondary carrier cell of carrier aggregation, CA, comprises:

20. A method for carrier aggregation, comprising:

21. The method of claim 20, wherein the interacting data with the UE according to the indication of the first entity comprises:

22. The method of claim 21, wherein the data is downlink data;

23. The method of claim 21, wherein the data is uplink data;

24. The method of claim 20, wherein the second entity interacts data with the UE according to the indication of the first entity, and wherein the method comprises:

25. The method of claim 24, wherein the data is downlink data;

26. The method of claim 25, wherein after the second entity interacts data with the UE in the second duplex mode according to the indication of the first entity, further comprising:

27. The method according to claim 22 or 25, wherein the first duplex mode is a time division duplex, TDD, mode, and the second duplex mode is a frequency division duplex, FDD, mode, and the second entity transmits the downlink data by using a part of downlink subframes in the secondary carrier, and the position of the part of downlink subframes is the same as the position of the downlink subframes in the primary carrier.

28. The method of claim 24, wherein the data is uplink data;

29. The method of claim 28, wherein after the second entity receives the uplink data modulated according to the second duplex mode and sent by the UE, the method further comprises:

30. The method according to claim 23 or 28, wherein the first duplex mode is TDD mode, and the second duplex mode is FDD mode, the second entity receives the uplink data by using a part of uplink subframes in the secondary carrier, and the position of the part of uplink subframes is the same as that of the uplink subframes in the primary carrier.

31. The method according to any of claims 20-30, wherein before interacting with the UE according to the indication of the first entity, the method further comprises:

32. The method of claim 31, wherein the second entity determines that the CA in the secondary carrier occupies resources, comprising:

33. The method of claim 31 or 32, further comprising:

34. The method of claim 32, wherein the first duplex mode is an FDD mode and the second duplex mode is a TDD mode;

35. The method according to any of claims 20 to 34, wherein the second entity determines a primary carrier cell of carrier aggregation, CA, comprising:

36. The method according to any of claims 20-35, wherein the first duplex mode is an FDD mode and the second duplex mode is a TDD mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

37. A method for carrier aggregation, comprising:

38. The method of claim 37, wherein the UE interacts with a first entity for first data, comprising:

39. The method of claim 38, wherein the second data is second downlink data;

40. The method of claim 39, wherein after interacting the second data with the first entity via the second entity in the second duplex mode, further comprising:

41. The method of claim 38, wherein the second data is second uplink data;

42. The method of claim 41, wherein after interacting the second data with the first entity via the second entity in the second duplex mode, further comprising:

43. The method according to any of claims 37 to 42, wherein the UE determines the primary carrier cell and the secondary carrier cell of the carrier aggregation CA, comprising:

44. The method of claim 43, wherein the receiving, from the first entity, information of a frequency point corresponding to a secondary carrier corresponding to the secondary carrier cell comprises:

45. A method according to any of claims 37-44, wherein the first duplex mode is a frequency division duplex, FDD, mode and the second duplex mode is a time division duplex, TDD, mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

46. An entity, comprising:

47. The entity according to claim 46, wherein said processor is further configured to:

48. The entity according to claim 47, wherein the first data is first downlink data and the second data is second downlink data;

the transmitter is specifically configured to:

49. The entity according to claim 47, wherein the first data is first uplink data and the second data is second uplink data;

the receiver is specifically configured to:

50. The entity according to claim 46, wherein said processor is further configured to:

51. The entity according to claim 50, wherein the first data is first downlink data and the second data is second downlink data;

the transmitter is specifically configured to:

52. The entity according to claim 50, wherein the first data is first uplink data and the second data is second uplink data;

the receiver is specifically configured to:

53. The entity according to claim 48 or 51, wherein said receiver is further configured to receive an uplink hybrid automatic repeat request, HARQ, indication for the second downlink data sent by the UE according to the feedback timing of the first duplex mode.

54. The entity according to claim 53, wherein the first duplex mode is a Time Division Duplex (TDD) mode, and the second duplex mode is a Frequency Division Duplex (FDD) mode, the other entity transmits the second downlink data using a part of downlink subframes in the secondary carrier, and the position of the part of downlink subframes is the same as the position of the downlink subframes in the primary carrier.

55. The entity according to claim 49 or 52, wherein the transmitter is further configured to transmit a downlink HARQ indication for the second uplink data to the UE according to the feedback timing of the first duplex mode.

56. The entity of claim 55, wherein the first duplex mode is TDD mode, and wherein the second duplex mode is FDD mode, the other entity receives the second uplink data by using a part of uplink subframes in the secondary carrier, and wherein the position of the part of uplink subframes is the same as the position of the uplink subframes in the primary carrier.

57. The entity according to claim 46, 51 or 53, wherein the processor is further configured to:

58. The entity of claim 57, wherein the processor is further specifically configured to:

59. The entity according to claim 57 or 58, wherein the first duplex mode is a FDD mode and the second duplex mode is a TDD mode, the processor is further configured to:

60. The entity of claim 49, 52 or 55, wherein the processor is further configured to:

61. The entity of claim 60, wherein the processor is further specifically configured to:

62. The entity according to claim 60 or 61, wherein when the first duplex mode is FDD mode and the second duplex mode is TDD mode, the processor determines that downlink subframes and special subframes in the secondary carrier are not available when the uplink CA in the secondary carrier occupies resources for receiving the second uplink data.

63. The entity according to any one of claims 46 to 62, wherein the transmitter is configured to:

64. The entity according to any one of claims 46 to 63, wherein said processor is configured to:

65. The entity of any one of claims 46 to 64, wherein the entity is a base station.

66. An entity, comprising:

67. The entity according to claim 66, wherein said transmitter and receiver are configured to:

68. The entity according to claim 67, wherein the data is downlink data;

69. The entity according to claim 67, wherein the data is uplink data;

70. The entity according to claim 66, wherein said transmitter and receiver are configured to:

71. The entity according to claim 70, wherein the data is downlink data;

72. The entity according to claim 71, wherein said receiver is further configured to receive an uplink hybrid automatic repeat request, HARQ, indication for the downlink data sent by the UE according to the feedback timing of the second duplex mode.

73. The entity according to claim 68 or 71, wherein the first duplex mode is a Time Division Duplex (TDD) mode, and the second duplex mode is a Frequency Division Duplex (FDD) mode, the transmitter transmits the downlink data using a part of downlink subframes in the secondary carrier, and the position of the part of downlink subframes is the same as the position of the downlink subframes in the primary carrier.

74. The entity according to claim 70, wherein the data is uplink data;

75. The entity of claim 74, wherein the transmitter is further configured to send a downlink HARQ indication for the uplink data to the UE according to the feedback timing of the second duplex mode.

76. The entity according to claim 69 or 74, wherein the first duplex mode is TDD mode, and the second duplex mode is FDD mode, the receiver employs a part of uplink subframes in the secondary carrier to receive the uplink data, and the position of the part of uplink subframes is the same as that of the uplink subframes in the primary carrier.

77. The entity according to any one of claims 66 to 76, wherein said processor is further configured to:

78. The entity of claim 77, wherein the processor is further specifically configured to:

79. The entity according to claim 77 or 78, wherein said transmitter and receiver are further configured to interact data with UEs accessing cells of said secondary carrier via resources of said secondary carrier other than resources occupied by said CA.

80. The entity according to claim 78, wherein the first duplex mode is a frequency division duplex, FDD, mode and the second duplex mode is a time division duplex, TDD, mode;

81. The entity of any one of claims 66 to 80, wherein the processor is configured to:

82. The entity according to any of claims 66 to 81, wherein the first duplex mode is a frequency division duplex, FDD, mode and the second duplex mode is a time division duplex, TDD, mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

83. The entity of any one of claims 66 to 82, wherein the entity is a base station.

84. A user device, comprising:

85. The UE of claim 84, wherein the transmitter and receiver are specifically configured to:

86. The UE of claim 85, wherein the second data is second downlink data;

87. The user equipment of claim 86, wherein the transmitter is further configured to:

88. The UE of claim 85, wherein the second data is second uplink data;

89. The ue of claim 88, wherein the receiver is further configured to:

90. The user equipment of any one of claims 84-89, wherein the receiver is further configured to: after the user equipment accesses the main carrier cell, receiving information of a frequency point corresponding to an auxiliary carrier corresponding to the auxiliary carrier cell from the first entity;

91. The ue of claim 90, wherein the receiver is further specifically configured to: and receiving a Radio Resource Control (RRC) reconfiguration message from the first entity, wherein the RRC reconfiguration message carries the information of the frequency point.

92. The UE of any one of claims 84 to 91, wherein the first duplex mode is a Frequency Division Duplex (FDD) mode and the second duplex mode is a Time Division Duplex (TDD) mode; or, the first duplex mode is a TDD mode, and the second duplex mode is an FDD mode.

93. A carrier aggregation system, comprising: the entity of any one of claims 46 to 65, the further entity and the user equipment.

94. A carrier aggregation system, comprising: the entity of any one of claims 66 to 83, the other entity and the user equipment.

95. A carrier aggregation system, comprising: the user equipment of any one of claims 84 to 92, the first entity and the second entity.