WO2016184132A1

WO2016184132A1 - Carrier aggregation method, terminal and storage medium

Info

Publication number: WO2016184132A1
Application number: PCT/CN2016/070086
Authority: WO
Inventors: 卞军峰
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-10-15
Filing date: 2016-01-04
Publication date: 2016-11-24
Also published as: CN106603109A; CN106603109B

Abstract

Disclosed are a carrier aggregation method, terminal and storage medium. The method includes: aggregating low-frequency carriers and intermediate-frequency carriers into low-intermediate-frequency carriers with a diplexer; when the terminal is in a single carrier working mode, opening the port of low-intermediate-frequency carriers or the port of high-frequency carriers with a switch to control the low-intermediate-frequency carriers or the high-frequency carriers to work; and when the terminal is in a multiple carrier working mode, synchronously opening the port of low-intermediate-frequency carriers and the port of high-frequency carriers with the switch to control the low-intermediate-frequency carriers and the high-frequency carriers to work synchronously.

Description

Carrier aggregation method and terminal, storage medium

Technical field

The present invention relates to a carrier aggregation technology, and in particular, to a carrier aggregation method, a terminal, and a storage medium.

Background technique

In the evolution of Long Term Evolution (LTE) to Evolutionary LTE (LTE-Advanced), wider spectrum requirements are an important factor affecting the evolution, for this third-generation partner project (3GPP, the 3rd Generation) The Partnership Project standard proposes Carrier Aggregation. Simply put, carrier aggregation can aggregate multiple carriers into a wider spectrum, and can also aggregate some discontinuous spectrum fragments to maximize the use of existing LTE equipment and spectrum resources. Thanks to the wider spectrum, the most intuitive benefit of carrier aggregation is the dramatic increase in transmission speed.

The LTE terminal project initially had only a simple low-frequency (700-900MHz) and intermediate-frequency (1700MHz-2100MHz) dual-carrier aggregation requirements. The implementation is relatively simple. Just add a duplexer between the low-frequency and intermediate-frequency paths. Realize dual-carrier aggregation by simultaneously transmitting or receiving two frequency bands.

With the improvement of LTE terminal requirements, it is required to realize low-frequency (700-900MHz), intermediate frequency (1700-2100MHz) and high-frequency (2300-2600MHz) three-carrier aggregation, and it is necessary to add a high on the low frequency plus intermediate frequency dual carrier. Frequency (2300-2600MHz) carrier. The mature solution provided by the terminal chip solution provider needs to separately pull two high-frequency antennas (main diversity antennas), and combine the three frequency bands to achieve carrier aggregation by adding antennas. Generally, a non-carrier aggregation terminal antenna has at least three antennas, a main antenna, a diversity antenna, a Global Positioning System (GPS), and a Wireless Fidelity (WiFi) two-in-one antenna, such as If two additional high-frequency main diversity antennas are added, the difficulty of antenna design is greatly increased for the terminal devices with relatively small size, especially the design of the all-metal body terminal, and the design of the antenna itself is very difficult. Designing 5 antennas is basically an impossible task. It can be seen that the biggest problem in achieving carrier aggregation in the low, medium and high frequency bands is that the antenna design is very difficult, and the passive efficiency of the antenna is very low, which cannot meet the test requirements at all.

Summary of the invention

To solve the above technical problem, an embodiment of the present invention provides a carrier aggregation method, a terminal, and a storage medium.

The carrier aggregation method improved by the embodiment of the present invention is applied to a terminal, and the method includes:

The low frequency carrier and the intermediate frequency carrier are aggregated by using a dual path to form a low intermediate frequency carrier;

When the terminal is in the single carrier working mode, the port of the low intermediate frequency carrier or the port of the high frequency carrier is opened by using a switch to control the low intermediate frequency carrier or the high frequency carrier to work;

When the terminal is in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously opened by using a switch to control the low intermediate frequency carrier and the high frequency carrier to work simultaneously.

In the embodiment of the present invention, the method further includes:

When in the multi-carrier mode of operation, a corresponding first impedance matching network is set in front of the low-IF carrier port, and a corresponding second impedance matching network is set in front of the high-frequency carrier port.

In the embodiment of the present invention, the method further includes:

For the low intermediate frequency carrier, the switching modes of the first carrier channel, the second carrier channel, and the third carrier channel are configured to be in a single port mode of operation, so that the terminal is in the single carrier mode of operation.

In the embodiment of the present invention, the method further includes:

For the high frequency carrier, the switching mode of the first carrier channel is configured to be in a single port mode of operation such that the terminal is in the single carrier mode of operation.

In the embodiment of the present invention, the method further includes:

For the high frequency carrier, the switching modes of the second carrier channel and the third carrier channel are configured to be in a dual port mode of operation such that the terminal is in the multi-carrier mode of operation.

The terminal provided by the embodiment of the present invention includes:

The dual channel is configured to aggregate the low frequency carrier and the intermediate frequency carrier to form a low intermediate frequency carrier;

a switch configured to open a port of the low intermediate frequency carrier or a port of a high frequency carrier to control operation of the low intermediate frequency carrier or the high frequency carrier when the terminal is in a single carrier working mode; In the multi-carrier mode of operation, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously turned on to control the low intermediate frequency carrier and the high frequency carrier to operate simultaneously.

In the embodiment of the present invention, the terminal further includes: a first impedance matching network and a second impedance matching network;

When in the multi-carrier operating mode, the first impedance matching network is set before the low intermediate frequency carrier port, and the second impedance matching network is set before the high frequency carrier port.

A terminal provided by another embodiment of the present invention includes:

a first configuration unit, configured to configure, for the low intermediate frequency carrier, a switching mode of the first carrier channel, the second carrier channel, and the third carrier channel into a single port working mode, so that the terminal is in the single carrier operation mode.

In the embodiment of the present invention, the terminal further includes:

The second configuration unit is configured to configure, for the high frequency carrier, a switching mode of the first carrier channel to a single port working mode, so that the terminal is in the single carrier working mode.

In the embodiment of the present invention, the second configuration unit is further configured to configure a switching mode of the second carrier channel and the third carrier channel to a dual port working mode for the high frequency carrier, so that the terminal is in the Multi-carrier mode of operation.

A storage medium having stored therein a computer program configured to perform the carrier aggregation method.

In the technical solution of the embodiment of the present invention, the low frequency carrier and the intermediate frequency carrier are aggregated by using a dual path device to form a low intermediate frequency carrier; when the terminal is in the single carrier working mode, the port of the low intermediate frequency carrier is opened by using a switch or high. a port of the frequency carrier to control the low intermediate frequency carrier or the high frequency carrier; when the terminal is in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously opened by using the switch, Controlling the low intermediate frequency carrier and the high frequency carrier to operate simultaneously. Therefore, the aggregation of the low frequency (700-900 MHz), the intermediate frequency (1700-2100 MHz), and the high frequency (2300-2600 MHz) three carriers is implemented. The embodiment of the present invention breaks through the general implementation method of adding two high frequency antennas by the terminal, thereby Greatly reduce the difficulty of antenna design. At the same time, the RF performance of the terminal single carrier is not affected by the multi-carrier circuit design, and the better RF performance is achieved to meet the requirements of the corresponding indicators.

DRAWINGS

1 is a schematic flowchart of a carrier aggregation method according to Embodiment 1 of the present invention;

2 is a schematic circuit diagram of an embodiment of the present invention;

3 is a schematic structural diagram of a terminal according to Embodiment 1 of the present invention;

FIG. 4 is a schematic structural diagram of a terminal according to Embodiment 2 of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

1 is a schematic flowchart of a carrier aggregation method according to Embodiment 1 of the present invention. The carrier aggregation method in this example is applied to a terminal. As shown in FIG. 1, the carrier aggregation method includes the following steps:

Step 101: The low frequency carrier and the intermediate frequency carrier are aggregated by using a dual path to form a low intermediate frequency carrier.

In the embodiment of the present invention, the terminal is especially an electronic device of a communication type such as a mobile phone, and the terminal The end is especially the LET terminal.

When the terminal implements low-frequency (700-900MHz) and intermediate-frequency (1700-2100MHz) dual-carrier aggregation, the two carrier channels are combined by a two-way device, and two frequency bands can be simultaneously received and transmitted, thereby realizing low-frequency carrier and intermediate frequency. Aggregation of carriers.

Step 102: When the terminal is in the single carrier working mode, use a switch to open a port of the low intermediate frequency carrier or a port of a high frequency carrier to control the low intermediate frequency carrier or the high frequency carrier to work.

Since the IF band and the HF band are very close, there is no suitable double or tripler (Triplexer) to combine the low and medium frequencies. Based on this, the embodiment of the present invention implements carrier aggregation of high frequency plus medium and low frequency by means of switching plus impedance matching network.

Step 103: When the terminal is in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously turned on by using a switch to control the low intermediate frequency carrier and the high frequency carrier to work simultaneously.

In the embodiment of the present invention, when in the multi-carrier working mode, a corresponding first impedance matching network is set in front of the low-IF carrier port, and a corresponding second impedance matching network is set in front of the high-frequency carrier port.

The traditional antenna switch can only ensure that only one frequency band is working at the same time, and different working frequency bands are switched by the antenna switch. In order to meet the requirements of carrier aggregation, two frequency bands or multiple frequency bands need to work at the same time. Therefore, in addition to working in a single frequency band, the antenna switch needs to add a state in which two frequency bands are simultaneously turned on, specific circuits and impedances. The matching network implementation is shown in Figure 2:

Referring to Figure (a), when the terminal is in single-carrier mode, the switch is in single-port mode. Only one port, low-IF carrier port or high-frequency carrier port can be opened by the switch.

Referring to FIG. (b), when the terminal is in the multi-carrier working mode, the switch is in the dual port working mode, and the switch can simultaneously open two ports, the port of the low intermediate frequency carrier and the port of the high frequency carrier.

Referring to FIG. (c), when the switch is in the dual port mode, a corresponding impedance matching network needs to be added in front of the two ports. In the embodiment of the present invention, the low frequency port corresponds to the first impedance matching network, and the high frequency port corresponds to the second impedance matching. The internet.

For the high frequency carrier, the switching mode of the first carrier channel is configured to be in a single port mode of operation such that the terminal is in the single carrier mode of operation. The switching modes of the second carrier channel and the third carrier channel are configured to be in a dual port mode of operation to place the terminal in the multi-carrier mode of operation.

Specifically, corresponding to the foregoing switch design and the port impedance matching network design, the embodiment of the present invention provides that the working mode is further configured, and when the terminal works in the single carrier working mode, the switch is configured in a single port working mode, and no additional port is needed. The impedance matching network is designed to ensure that RF performance has no effect. When the terminal works in the multi-carrier working mode of the low, medium and high frequency bands, the switch is configured to open the dual port working mode of the two ports at the same time, and the corresponding RF port needs to perform impedance matching.

To this end, the working modes of the three carrier channels (CA1, CA2, CA3) of each frequency band are separately configured. CA1 is the main channel, that is, the channel to be used in the single carrier working mode, and the switch is configured as a single port working mode. CA2 and CA3 are sub-channels, that is, the channels to be used in the multi-carrier mode of operation. The switch is configured as a dual-port mode in which two ports are simultaneously turned on. At this time, the CA1 channel is also reconfigured accordingly, that is, low. All three medium and high frequency bands are simultaneously turned on, and the corresponding port impedance matching network is adjusted to realize multi-carrier aggregation technology.

It can be seen that in order to break through the limitation of the antenna design, the petrochemical victory of the present invention can realize the three-carrier aggregation of the three low-medium-high frequency bands by the combination of circuit design and working mode configuration without increasing the number of antennas, and can minimize the implementation. The impact of three-carrier aggregation on terminal performance indicators, Ensure that the performance of the terminal equipment under single-carrier operation is not reduced, thus meeting the test requirements.

FIG. 3 is a schematic structural diagram of a terminal according to Embodiment 1 of the present invention. As shown in FIG. 3, the terminal includes:

The duplexer 31 is configured to aggregate the low frequency carrier and the intermediate frequency carrier to form a low intermediate frequency carrier;

The switch 32 is configured to open a port of the low intermediate frequency carrier or a port of a high frequency carrier when the terminal is in a single carrier working mode, to control the low intermediate frequency carrier or the high frequency carrier to work; When in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously turned on to control the low intermediate frequency carrier and the high frequency carrier to work simultaneously.

The terminal further includes: a first impedance matching network 33 and a second impedance matching network 34;

It should be understood by those skilled in the art that the functions implemented by the various components of the foregoing terminal in the embodiments of the present invention can be understood by referring to the related description of the foregoing carrier aggregation method.

4 is a schematic structural diagram of a terminal according to Embodiment 2 of the present invention. As shown in FIG. 4, the terminal includes:

The first configuration unit 41 is configured to configure, for the low intermediate frequency carrier, a switching mode of the first carrier channel, the second carrier channel, and the third carrier channel into a single port working mode, so that the terminal is in the single carrier Operating mode.

The second configuration unit 42 is configured to configure, for the high frequency carrier, a switching mode of the first carrier channel to a single port working mode, so that the terminal is in the single carrier working mode.

The second configuration unit 42 is further configured to configure a switching mode of the second carrier channel and the third carrier channel into a dual port working mode for the high frequency carrier, so that the terminal is in the multi-carrier working mode. .

It should be understood by those skilled in the art that the functions implemented by the respective units of the foregoing terminal in the embodiments of the present invention can be understood by referring to the related description of the foregoing carrier aggregation method.

The embodiment of the invention further describes a storage medium in which a computer program is stored, the computer program being configured to perform the carrier aggregation method of the foregoing embodiments.

The technical solutions described in the embodiments of the present invention can be arbitrarily combined without conflict.

In the several embodiments provided by the present invention, it should be understood that the disclosed method and smart device may be implemented in other manners. The device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, such as: multiple units or components may be combined, or Can be integrated into another system, or some features can be ignored or not executed. In addition, the coupling, or direct coupling, or communication connection of the components shown or discussed may be indirect coupling or communication connection through some interfaces, devices or units, and may be electrical, mechanical or other forms. of.

The units described above as separate components may or may not be physically separated, and the components displayed as the unit may or may not be physical units, that is, may be located in one place or distributed to multiple network units; Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one second processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; The above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention. It should be covered by the scope of the present invention.

Industrial applicability

The invention realizes the aggregation of the low frequency (700-900MHz), the intermediate frequency (1700-2100MHz) and the high frequency (2300-2600MHz) three carriers of the terminal, thereby greatly reducing the difficulty of the antenna design. At the same time, the RF performance of the terminal single carrier is not affected by the multi-carrier circuit design, and the better RF performance is achieved to meet the requirements of the corresponding indicators.

Claims

A carrier aggregation method is applied to a terminal, and the method includes:

The low frequency carrier and the intermediate frequency carrier are aggregated by using a dual path to form a low intermediate frequency carrier;

When the terminal is in the single carrier working mode, the port of the low intermediate frequency carrier or the port of the high frequency carrier is opened by using a switch to control the low intermediate frequency carrier or the high frequency carrier to work;

When the terminal is in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously opened by using a switch to control the low intermediate frequency carrier and the high frequency carrier to work simultaneously.
The carrier aggregation method according to claim 1, wherein the method further comprises:

When in the multi-carrier mode of operation, a corresponding first impedance matching network is set in front of the low-IF carrier port, and a corresponding second impedance matching network is set in front of the high-frequency carrier port.
The carrier aggregation method according to claim 1, wherein the method further comprises:

For the low intermediate frequency carrier, the switching modes of the first carrier channel, the second carrier channel, and the third carrier channel are configured to be in a single port mode of operation, so that the terminal is in the single carrier mode of operation.
The carrier aggregation method according to claim 1, wherein the method further comprises:

For the high frequency carrier, the switching mode of the first carrier channel is configured to be in a single port mode of operation such that the terminal is in the single carrier mode of operation.
The carrier aggregation method according to claim 4, wherein the method further comprises:

For the high frequency carrier, the switching modes of the second carrier channel and the third carrier channel are configured to be in a dual port mode of operation such that the terminal is in the multi-carrier mode of operation.
A terminal, the terminal comprising:

The dual channel is configured to aggregate the low frequency carrier and the intermediate frequency carrier to form a low intermediate frequency carrier;

And a switch configured to open a port of the low intermediate frequency carrier or a port of a high frequency carrier to control the low intermediate frequency carrier or the high frequency carrier to work when the terminal is in a single carrier working mode; When the terminal is in the multi-carrier working mode, the port of the low intermediate frequency carrier and the port of the high frequency carrier are simultaneously turned on to control the low intermediate frequency carrier and the high frequency carrier to work simultaneously.
The terminal according to claim 6, wherein the terminal further comprises: a first impedance matching network and a second impedance matching network;

When in the multi-carrier operating mode, the first impedance matching network is set before the low intermediate frequency carrier port, and the second impedance matching network is set before the high frequency carrier port.
A terminal, the terminal comprising:

a first configuration unit, configured to configure, for the low intermediate frequency carrier, a switching mode of the first carrier channel, the second carrier channel, and the third carrier channel into a single port working mode, so that the terminal is in the single carrier operation mode.
The terminal of claim 8, wherein the terminal further comprises:

The second configuration unit is configured to configure, for the high frequency carrier, a switching mode of the first carrier channel to a single port working mode, so that the terminal is in the single carrier working mode.
The terminal according to claim 9, wherein

The second configuration unit is further configured to configure a switching mode of the second carrier channel and the third carrier channel to a dual port working mode for the high frequency carrier, so that the terminal is in the multi-carrier working mode.
A storage medium storing a computer program configured to perform the carrier aggregation method according to any one of claims 1 to 5.