CN115499917A

CN115499917A - Wireless communication method, device, electronic equipment and computer readable medium

Info

Publication number: CN115499917A
Application number: CN202110671623.1A
Authority: CN
Inventors: 郭诚; 张娟; 申新乐; 王令斌
Original assignee: ZTE Corp
Current assignee: ZTE Corp
Priority date: 2021-06-17
Filing date: 2021-06-17
Publication date: 2022-12-20
Also published as: WO2022262358A1

Abstract

The invention discloses a wireless communication method, a wireless communication device, electronic equipment and a computer readable medium, wherein the method comprises the following steps: acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot; determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable member carrier; and sending a switching control instruction to the terminal equipment so that the terminal equipment can dynamically allocate the transmission antenna to the assignable member carrier wave according to the switching control instruction. The method dynamically allocates the antennas for the member carriers according to different scheduling time slots, thereby facilitating the full utilization of the member carriers in the distributable state in the current scheduling time slot, improving the flexibility of the carrier aggregation technology, further improving the uplink transmission capability of the terminal equipment and fully exerting the performance advantages of multiple carriers.

Description

Wireless communication method, device, electronic equipment and computer readable medium

Technical Field

The present invention relates to communications technologies, and in particular, to a wireless communication method, an apparatus, an electronic device, and a computer-readable medium.

Background

Carrier aggregation is a technology introduced in LTE-Advanced (fourth generation wireless communication technology standard) to increase a transmission bit rate by aggregating two or more component carriers together to support a larger transmission bandwidth. In the related art, an uplink antenna of a terminal device is statically allocated among multiple carriers, that is: the component carriers allocated to the same uplink antenna are fixed.

Therefore, the conventional static allocation mode is not flexible enough, cannot fully utilize each carrier, and further cannot fully exert the performance advantages of multiple carriers.

Disclosure of Invention

In view of the above, the present invention has been made to provide a wireless communication method, apparatus, electronic device and computer readable medium that overcome or at least partially solve the above problems.

According to an aspect of an embodiment of the present invention, there is provided a wireless communication method, including:

acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot;

determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable member carrier;

and sending a switching control instruction to the terminal equipment so that the terminal equipment can dynamically allocate the transmission antenna to the allocable member carrier according to the dynamic allocation parameters contained in the switching control instruction.

Optionally, the obtaining of the time slot transmission parameter corresponding to the current scheduling time slot of each component carrier includes: when the switching of the scheduling time slot is detected, acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot; wherein the timeslot transmission parameters include: an uplink transmission parameter corresponding to an uplink transmission direction;

and when the preset data transmission direction is an uplink transmission direction, determining the component carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable component carrier includes: and determining the member carrier with the time slot transmission parameter as the uplink transmission parameter as an allocable member carrier.

Optionally, the sending, to the terminal device, a switching control instruction so that the terminal device dynamically allocates a transmission antenna to the allocable component carrier according to a dynamic allocation parameter included in the switching control instruction specifically includes:

judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot or not;

if not, sending a switching control instruction containing dynamic allocation parameters to the terminal equipment, so that the terminal equipment dynamically allocates carriers for the transmission antenna according to the dynamic allocation parameters contained in the switching control instruction.

Optionally, the determining whether the assignable component carrier in the current scheduling time slot is the same as the assignable component carrier in the previous scheduling time slot specifically includes:

and analyzing the wireless frame structure of each member carrier in advance, and judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot according to the analysis result.

Optionally, when the terminal device has multiple transmit antennas, the dynamically allocating parameters further includes: a number of spatial streams sub-parameter for indicating the number of antennas corresponding to the assignable component carriers.

Optionally, when the number of the assignable component carriers is multiple, the sending a switching control instruction to a terminal device, so that the terminal device dynamically allocates a transmission antenna to the assignable component carriers according to the switching control instruction includes:

acquiring carrier attribute information and terminal equipment capability information of each distributable member carrier, and setting distribution priority of each distributable member carrier according to the carrier attribute information and the terminal equipment capability information;

selecting at least one distributable member carrier as a target carrier according to the distribution priority;

sending a switching control instruction to a terminal device, so that the terminal device dynamically allocates a transmission antenna to the target carrier wave according to the switching control instruction;

wherein the carrier attribute information comprises at least one of: carrier bandwidth, and channel transmission quality; the terminal device capability information includes at least one of: the service load, the number of uplink space division layers supported by the terminal equipment and the maximum modulation order supported by the terminal equipment.

Optionally, before the obtaining of the time slot transmission parameter of each component carrier corresponding to the current scheduling time slot, the method further includes:

configuring a plurality of member carriers for terminal equipment in advance; wherein radio frame structures of at least two of the plurality of component carriers are different.

According to still another aspect of an embodiment of the present invention, there is provided a wireless communication method including:

receiving a switching control instruction sent by a base station after determining distributable member carriers; the distributable member carrier is a member carrier with a time slot transmission parameter matched with a preset data transmission direction, and the time slot transmission parameter is a transmission parameter of a current scheduling time slot corresponding to the member carrier;

and acquiring dynamic allocation parameters contained in the switching control instruction, and dynamically allocating the transmission antenna to an allocable member carrier corresponding to the dynamic allocation parameters according to the dynamic allocation parameters.

According to still another aspect of an embodiment of the present invention, there is provided a wireless communication apparatus including:

the acquisition module is suitable for acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot;

the determining module is suitable for determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable member carrier;

and the control module is suitable for sending a switching control instruction to the terminal equipment so that the terminal equipment can dynamically allocate the transmission antenna to the allocable member carrier according to the dynamic allocation parameters contained in the switching control instruction.

Optionally, the obtaining module is specifically adapted to: when the switching of the scheduling time slot is detected, acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot; wherein the timeslot transmission parameter comprises: uplink transmission parameters corresponding to the uplink transmission direction and/or downlink transmission parameters corresponding to the downlink transmission direction;

and when the preset data transmission direction is an uplink transmission direction, the determining module is specifically adapted to: and determining the member carrier with the time slot transmission parameter as the uplink transmission parameter as an allocable member carrier.

Optionally, the control module is specifically adapted to:

judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot;

Optionally, the control module is specifically adapted to:

Optionally, when the terminal device has a plurality of transmission-class transmission antennas, the dynamically allocating parameters further include: a null stream number sub-parameter for indicating the number of antennas corresponding to the allocable carriers.

Optionally, when the number of the assignable component carriers is multiple, the control module is specifically adapted to:

wherein the carrier attribute information and the terminal device capability information include at least one of: carrier bandwidth, channel transmission quality, service load, the number of uplink space division layers supported by the terminal equipment and the maximum modulation order supported by the terminal equipment.

Optionally, the obtaining module is further adapted to:

configuring a plurality of member carriers for terminal equipment in advance; wherein radio frame structures of at least two component carriers of the plurality of component carriers are different.

According to still another aspect of embodiments of the present invention, there is provided a wireless communication apparatus including:

the receiving module is suitable for receiving a switching control instruction sent by the base station after determining the distributable member carrier; the assignable member carriers are member carriers with time slot transmission parameters matched with a preset data transmission direction, and the time slot transmission parameters are transmission parameters of current scheduling time slots corresponding to the member carriers;

and the distribution module is suitable for acquiring dynamic distribution parameters contained in the switching control instruction and dynamically distributing the transmission antenna to the distributable component carrier waves corresponding to the dynamic distribution parameters according to the dynamic distribution parameters.

According to still another aspect of an embodiment of the present invention, there is provided an electronic apparatus including:

one or more processors;

a storage device having one or more programs stored thereon, which when executed by the one or more processors, cause the one or more processors to implement the above-described wireless communication method;

one or more I/O interfaces connected between the processor and the memory and configured to enable information interaction between the processor and the memory.

According to still another aspect of an embodiment of the present invention, there is provided a computer-readable medium on which a computer program is stored, the program, when executed by a processor, implementing the above-described wireless communication method.

In the wireless communication method and apparatus, the electronic device, and the computer-readable medium provided in the embodiments of the present invention, the time slot transmission parameter corresponding to the current scheduling time slot of each component carrier can be dynamically obtained, so that the component carrier whose time slot transmission parameter matches the preset data transmission direction is determined as an allocable component carrier, and the transmission antenna of the terminal device is dynamically allocated to the allocable component carrier. Therefore, the method dynamically allocates the member carriers of the antenna aiming at different scheduling time slots, thereby facilitating the full utilization of the member carriers in the distributable state in the current scheduling time slot, improving the flexibility of carrier allocation, further improving the uplink transmission capability of the terminal equipment and fully exerting the performance advantages of multiple carriers.

Drawings

Fig. 1 is a flowchart of a wireless communication method according to an embodiment of the present disclosure;

fig. 2 is a flow chart of another wireless communication method provided by an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a radio frame structure of a component carrier in an example provided by the embodiment of the present disclosure;

fig. 4 is a schematic diagram of a radio frame structure of a component carrier in yet another example provided by the embodiment of the present disclosure;

fig. 5 is a schematic diagram of a radio frame structure of a component carrier in yet another example provided by the embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of a wireless communication device according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of another wireless communication device according to an embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of an electronic device according to still another embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the server provided by the present invention is described in detail below with reference to the accompanying drawings.

Example embodiments will be described more fully hereinafter with reference to the accompanying drawings, but which may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," 8230; \8230 "; when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

The embodiments described herein may be described with reference to plan and/or cross-sectional views in idealized representations of the present invention. Accordingly, the example illustrations can be modified in accordance with manufacturing techniques and/or tolerances. Accordingly, the embodiments are not limited to the embodiments shown in the drawings, but include modifications of configurations formed based on a manufacturing process. Thus, the regions illustrated in the figures have schematic properties, and the shapes of the regions shown in the figures illustrate specific shapes of regions of elements, but are not intended to be limiting.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and the present invention and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

Fig. 1 shows a flowchart of a wireless communication method according to an embodiment of the present invention. As shown in fig. 1, the method comprises the steps of:

step S110: and acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot.

Specifically, the execution main body of this embodiment is used to schedule a plurality of terminal devices, and may specifically be a base station. In order to increase the transmission bandwidth, in this embodiment, a plurality of component carriers are configured in advance to implement a carrier aggregation function. Correspondingly, in this step, the time slot transmission parameter of each component carrier corresponding to the current scheduling time slot is obtained. One member carrier has a plurality of scheduling time slots, and each scheduling time slot has different time slot transmission parameters. The time slot transmission parameter is used to indicate a transmission state of the component carrier in the scheduling time slot, and specifically includes: uplink transmission parameters, downlink transmission parameters, and the like.

Step S120: and determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable member carrier.

The preset data transmission direction is used for indicating the data transmission direction, and specifically includes: a downlink transmission direction for transmitting data from the base station to the terminal device, an uplink transmission direction for transmitting data from the terminal device to the base station, and the like. Considering that the bandwidths of the uplink and the downlink are generally asymmetric, and the bandwidth of the uplink is generally smaller than the bandwidth of the downlink, in order to improve the uplink transmission efficiency, the preset data transmission direction in this embodiment may be an uplink transmission direction. Correspondingly, the member carrier with the time slot transmission parameter matched with the preset data transmission direction is: the time slot transmission parameter is a member carrier of the uplink transmission parameter.

Step S130: and sending a switching control instruction to the terminal equipment so that the terminal equipment can dynamically allocate the transmission antenna to the allocable member carrier according to the dynamic allocation parameters contained in the switching control instruction.

Specifically, the carrier allocation condition of the transmission antenna of the terminal device is dynamically controlled through the switching control instruction, so that the transmission antenna of the terminal device is dynamically allocated to the allocable component carrier. For example, in this embodiment, the transmitting type transmitting antenna of the terminal device is mainly dynamically allocated to the member carrier whose timeslot transmission parameter is the uplink transmission parameter, so that the transmitting type transmitting antenna can fully utilize the member carrier in the uplink transmission state in the current scheduling timeslot, thereby improving the uplink transmission capability.

Therefore, in the wireless communication method provided by the embodiment of the present invention, the time slot transmission parameter of each component carrier corresponding to the current scheduling time slot can be dynamically obtained, so that the component carrier with the time slot transmission parameter matched with the preset data transmission direction is determined as an allocable component carrier, and the transmission antenna of the terminal device is dynamically allocated to the allocable component carrier. Therefore, the method dynamically allocates the antennas for the member carriers according to different scheduling time slots, thereby facilitating the full utilization of the member carriers in the distributable state in the current scheduling time slot, improving the flexibility of the carrier aggregation technology, further improving the uplink transmission capability of the terminal equipment, and fully exerting the performance advantages of multiple carriers.

Example two

Fig. 2 shows a flowchart of a wireless communication method according to a second embodiment of the present invention. As shown in fig. 2, the method comprises the steps of:

step S200: configuring a plurality of member carriers for terminal equipment in advance; wherein radio frame structures of at least two component carriers in the plurality of component carriers are different.

Specifically, the main body of the step may be a base station device. Correspondingly, the base station equipment starts a carrier aggregation function and adds at least two member carriers, so that the terminal equipment can realize carrier aggregation transmission by utilizing a plurality of member carriers. In specific implementation, the base station device may send a carrier configuration instruction to the terminal device such as the user equipment, so that the terminal device configures a plurality of component carriers for scheduling.

In order to facilitate flexible configuration of carriers by means of time-slot scheduling, at least two component carriers with different radio frame structures exist in the multiple component carriers in this embodiment. The different radio frame structures mainly include: the time slot transmission parameters of different carriers in each scheduling time slot are different. For example, the time slot transmission parameters of the first component carrier are different from the time slot transmission parameters of the second component carrier during the at least one scheduled time slot. For example, in a certain scheduling timeslot, the timeslot transmission parameter of the first component carrier is an uplink transmission parameter, and the timeslot transmission parameter of the second component carrier is a downlink transmission parameter.

In one specific example, the radio frame structures are different and include at least one of:

the first case where the radio frame structure is different is: the component carriers have different systems. For example, the plurality of component carriers include a first component carrier whose modulation scheme is a first modulation scheme, such as Frequency Division Duplex (FDD), and a second component carrier whose modulation scheme is a second modulation scheme, such as Time Division Duplex (TDD).

The second case where the radio frame structure is different is: in TDD mode, the radio frame headers between carriers are not aligned. For example, when the first component carrier and the second component carrier are both in a TDD system, if the time lengths of the scheduling time slots of the first component carrier and the second component carrier are different, it indicates that the radio frame structures of the first component carrier and the second component carrier are different. Or, if the radio frame headers of the first component carrier and the second component carrier are not aligned, it is also indicated that the radio frame structures of the first component carrier and the second component carrier are different.

In short, the present invention does not limit the specific details of different radio frame structures, and as long as the division manner of the scheduling time slots of the two component carriers is not completely the same, it indicates that the radio frame structures of the two component carriers are different. The time slot dividing mode of the component carrier comprises at least one of the following modes: the time length of the scheduling time slot corresponding to the member carrier, the time slot transmission parameter corresponding to each scheduling time slot, and the like.

Step S210: and acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot.

In this embodiment, in order to fully utilize the carrier resources and improve the transmission bandwidth, a dynamic scheduling manner of time slots is adopted to dynamically allocate the carrier resources to the transmission antennas. Specifically, when the switching of the scheduling time slot is detected, the time slot transmission parameter of each member carrier corresponding to the current scheduling time slot is acquired. For example, for a scenario of enhancing uplink antenna transmission capability, for each scheduling timeslot, the base station dynamically controls to switch an uplink antenna (i.e., a transmission-class transmission antenna) of the terminal device to a component carrier having the uplink timeslot. The number of the uplink antennas most distributed to each component carrier depends on the number of uplink space division layers supported by the terminal on the carrier at most.

Correspondingly, in this step, the time slot transmission parameter of each component carrier corresponding to the current scheduling time slot is obtained. One member carrier has a plurality of scheduling time slots, and each scheduling time slot has different time slot transmission parameters. The time slot transmission parameter is used to indicate a transmission state of a component carrier in the scheduling time slot, and specifically includes: uplink transmission parameters, downlink transmission parameters, and the like. In specific implementation, the time slot transmission parameter of each member carrier corresponding to the current scheduling time slot is obtained according to the wireless frame structure of each member carrier.

It should be noted that, in order to reduce processing delay and improve real-time performance, the current scheduling time slot may refer to: the upcoming next scheduled time slot to reserve the switching time.

Step S220: and determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as an allocable member carrier.

The preset data transmission direction is used for indicating the data transmission direction, and specifically includes: a downlink transmission direction for transmitting data from the base station to the terminal device, an uplink transmission direction for transmitting data from the terminal device to the base station, and the like. Considering that the bandwidths of the uplink and the downlink are generally asymmetric, and the bandwidth of the uplink is generally smaller than the bandwidth of the downlink, in order to improve the uplink transmission efficiency, the preset data transmission direction in this embodiment may be an uplink transmission direction. Correspondingly, the member carrier with the time slot transmission parameter matched with the preset data transmission direction is: the time slot transmission parameter is a member carrier of the uplink transmission parameter. In specific implementation, the time slot transmission parameters of each member carrier are respectively obtained, and then at least one member carrier with the time slot transmission parameters matched with the preset data transmission direction is determined as an allocable member carrier.

Step S230: and judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot.

This step is an optional step, and may be omitted in other embodiments of the present invention.

Specifically, the following method may be used to determine whether the assignable component carriers in the current scheduling time slot are the same as the assignable component carriers in the previous scheduling time slot: and analyzing the wireless frame structure of each member carrier in advance, and judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot according to the analysis result. In specific implementation, according to the wireless frame structure of each member carrier, whether the time slot transmission parameter of each member carrier in the current scheduling time slot changes relative to the last scheduling time slot is judged, if not, the assignable member carrier in the current scheduling time slot is completely the same as the assignable member carrier in the last scheduling time slot, and at the moment, the carrier does not need to be reassigned to the transmission antenna. Correspondingly, when it is determined that the assignable member carrier in the current scheduling time slot is the same as the assignable member carrier in the previous scheduling time slot, a maintaining instruction may be sent to the terminal device to control the terminal device to continue to perform data transmission according to the assigned carrier. Otherwise, if it is determined that the time slot transmission parameter of each component carrier in the current scheduling time slot is changed relative to the last scheduling time slot according to the radio frame structure of each component carrier, it indicates that the assignable component carrier in the current scheduling time slot is different from the assignable component carrier in the last scheduling time slot, and at this time, the subsequent step S240 is executed.

Step S240: if not, sending a switching control instruction containing the dynamic allocation parameters to the terminal equipment, so that the terminal equipment dynamically allocates carriers to the transmission antenna according to the dynamic allocation parameters contained in the switching control instruction.

If the distributable member carrier in the current scheduling time slot is different from the distributable member carrier in the last scheduling time slot, the carrier distribution condition of the antenna needs to be dynamically adjusted according to the distributable member carrier in the current scheduling time slot. Correspondingly, a switching control instruction containing the dynamic allocation parameters is sent to the terminal equipment, so that the terminal equipment dynamically allocates carriers to the transmission antenna according to the dynamic allocation parameters contained in the switching control instruction. The dynamic allocation parameter is used for indicating the corresponding relation between the transmission antenna and the carrier wave. Specifically, the dynamic allocation parameters include: carrier identification information for identifying the carrier, and multiplexing identification information for identifying the multiplexing condition of the carrier. For example, when the terminal device has multiple transmission antennas, the dynamic allocation parameters specifically include: and a space division stream number sub-parameter used for indicating the number of the antennas corresponding to the allocable carrier, wherein the space division stream number sub-parameter is the multiplexing identification information used for identifying the multiplexing condition of the carrier mentioned above. Specifically, the space division stream number subparameter is used to indicate the number of space division multiplexed streams of the carrier, for example, when the terminal device has two transmission-class transmission antennas, the space division stream number subparameter of the carrier may be set to 2, that is: and the carrier waves are subjected to space division for two paths so as to be simultaneously distributed to the first transmission type transmission antenna and the second transmission type transmission antenna.

The embodiment of the invention does not limit the specific format and the content of the dynamic allocation parameters, and a person skilled in the art can flexibly set the format information of the dynamic allocation parameters according to the requirement. In addition, in order to facilitate communication between the base station and the terminal device, the base station may send the format specification of the dynamic allocation parameter to the terminal device through the control signaling in advance, so that after receiving the switching control instruction, the terminal device performs parsing based on the format specification included in the control signaling to determine the corresponding relationship between the antenna and the carrier.

Therefore, in this step, the terminal device dynamically allocates carriers to the antennas based on the received switching control instruction, so that appropriate carriers can be dynamically switched for transmission according to different scheduling time slots, and transmission efficiency is improved.

In addition, if the number of the assignable component carriers in the current scheduling time slot is multiple, when a switching control instruction is sent to the terminal equipment, the target carrier assigned to the antenna is further determined according to the carrier attribute information of each assignable component carrier. In specific implementation, firstly, carrier attribute information and terminal equipment capability information of each distributable member carrier are obtained, and distribution priority of each distributable member carrier is set according to the carrier attribute information and the terminal equipment capability information; then, selecting at least one distributable member carrier as a target carrier according to the distribution priority; and sending a switching control instruction to the terminal equipment so that the terminal equipment can dynamically allocate the transmission antenna to the target carrier wave according to the switching control instruction. Wherein the carrier attribute information and the terminal device capability information include at least one of: carrier bandwidth, channel transmission quality, service load, the number of uplink space division layers supported by the terminal equipment and the maximum modulation order supported by the terminal equipment. The larger the carrier bandwidth is, the stronger the transmission capability of the carrier is, and therefore, the larger the carrier bandwidth is, the higher the allocation priority is. The better the channel transmission quality is, the higher the distribution priority is; the lower the traffic load of the carrier, the higher the allocation priority. In addition, the uplink space division layer number of the carrier and the modulation order of the carrier can also represent the transmission capability of the carrier, and correspondingly, if the uplink space division layer number of the carrier is higher, the distribution priority is higher; the higher the modulation order of the carrier, the higher the allocation priority. Therefore, in the scenario of uplink transmission enhancement, if multiple component carriers are in an uplink timeslot at the same time, uplink transmit antennas are preferentially allocated to the component carriers including, but not limited to, the following conditions: the carrier with a large carrier bandwidth, the carrier with good channel transmission quality, the carrier with a low service load, and the carrier with a higher capability supported by the terminal (specifically embodied according to the number of uplink space division layers, the modulation order, etc.). And when the conditions are changed, dynamically adjusting the distribution mode of the terminal transmitting antenna among the component carriers.

Optionally, when the base station controls the uplink antenna of the terminal device to switch among multiple carriers each time, the base station needs to reserve the switching time, so as to avoid sending any uplink data within the switching time, and prevent the uplink data sent within the switching time from being lost. The uplink data includes, but is not limited to, the following uplink transmission channels and reference signals: an Uplink Physical Shared Channel (PUSCH), an Uplink Physical Control Channel (PUCCH), a Physical Random Access Channel (PRACH), and a Sounding Reference Signal (SRS). Finally, for ease of understanding, some of the details in the above embodiments are described in detail by way of a few specific examples:

examples one,

The uplink data in this example is transmitted based on a PUSCH (uplink physical shared channel). Fig. 3 shows radio frame structures of a first component carrier and a second component carrier in this scenario. As shown in fig. 3, the duration of the scheduling time slot of the first component carrier is twice the duration of the scheduling time slot of the second component carrier, for example, assuming that the subcarrier spacing in the first component carrier is 1ms, the subcarrier spacing in the second component carrier is 0.5ms. In fig. 3, the time slot transmission parameter of the scheduling time slot beginning with U is an uplink transmission parameter, which is used to indicate that the carrier in the scheduling time slot is used to execute an uplink transmission operation; taking the time slot transmission parameter of the scheduling time slot at the beginning of the D as a downlink transmission parameter, and indicating that the carrier in the scheduling time slot is used for executing downlink transmission operation; the time slot transmission parameter of the scheduling time slot at the beginning of the S is taken as a special transmission parameter for indicating that the scheduling time slot is a special time slot, and the carrier is used for executing certain special operations; and G, the corresponding time period is switching protection time, and is used for preventing the uplink data from being lost in the switching process.

As shown in fig. 3, for the U0\ U1\ U2\ U3\ U5 time slots in the first member carrier, all the corresponding second member carriers are in the downlink time slots, and correspondingly, for the U0\ U1\ U2\ U3\ U5 time slots in the first member carrier, the base station control terminal switches the uplink antenna to the first member carrier for uplink data transmission.

In addition, for the U4 timeslot in the first component carrier, the corresponding second component carrier is in the U8 timeslot and the U9 timeslot, and at this time, because both the first component carrier and the second component carrier are in the uplink timeslot, the base station may dynamically select the uplink antenna allocation mode and the uplink data transmission carrier of the terminal according to the carrier attribute information of the two component carriers. For example, assuming that the terminal has two transmitting antennas, antenna 1 and antenna 2, respectively, antenna 1 may be allocated to the first component carrier, and antenna 2 may be allocated to the second component carrier. The carrier with the strongest transmission capability may also be screened from the first component carrier and the second component carrier as a target carrier, for example, the second component carrier is screened as the target carrier, and the target carrier is spatially multiplexed, so that the antenna 1 and the antenna 2 are simultaneously allocated to the second component carrier.

In specific implementation, the base station may dynamically determine a carrier currently in an uplink timeslot as an allocable carrier in each scheduling timeslot, and control the terminal antenna to switch between the allocable carriers. In addition, the radio frame structure of each carrier may be analyzed in advance, so that when an allocable component carrier in the current scheduling time slot is different from an allocable component carrier in the previous scheduling time slot, the antenna of the terminal device is controlled to perform a carrier switching operation. The carrier switching time can be judged in advance by analyzing the radio frame structure in advance, so that the base station can reserve the switching protection time conveniently, and data loss caused by switching operation is prevented.

Examples two,

The uplink data in this example is transmitted based on PUCCH (uplink physical control channel). Fig. 4 shows radio frame structures of a first component carrier and a second component carrier in this scenario. As shown in fig. 4, the duration of the scheduling time slot of the first component carrier is the same as the duration of the scheduling time slot of the second component carrier, and accordingly, the subcarrier spacing in the first component carrier is the same as the subcarrier spacing in the second component carrier.

As shown in fig. 4, for U8\ U9 timeslots in a first component carrier, all corresponding second component carriers are downlink timeslots, and at this time, the base station control terminal switches the uplink antenna to the first component carrier to perform uplink data transmission. In addition, for the U4\ U8\ U9 time slots in the second component carrier, all the corresponding first component carriers are downlink time slots, and at this time, the base station control terminal switches the uplink antenna to the second component carrier for uplink data transmission.

Examples III,

The uplink data in this example is also transmitted based on PUCCH (uplink physical control channel). Fig. 5 shows radio frame structures of a first component carrier and a second component carrier in this scenario. As shown in fig. 5, the duration of the scheduling time slot of the first component carrier is the same as the duration of the scheduling time slot of the second component carrier, and accordingly, the subcarrier interval in the first component carrier is the same as the subcarrier interval in the second component carrier.

As shown in fig. 5, for U8\ U9 timeslots in a first component carrier, all corresponding second component carriers are downlink timeslots, and at this time, the base station control terminal switches the uplink antenna to the first component carrier to perform uplink data transmission. In addition, for the U2\ U3\ U4\ U7\ U8\ U9 time slots in the second component carrier, all the corresponding first component carriers are downlink time slots, and at this time, the base station control terminal switches the uplink antenna to the second component carrier for uplink data transmission.

It can be seen from the above examples that the present invention can dynamically switch the uplink antenna to the carrier currently in the uplink timeslot by means of time-division dynamic scheduling, thereby improving the utilization rate of the carrier and avoiding the defect of low carrier utilization rate in the static carrier allocation manner.

For example, still taking the example one as an example, assuming that the terminal device shares two uplink antennas, in the conventional static allocation manner, the antenna allocation manner may be: antenna 1 is assigned to a first component carrier and antenna 2 is assigned to a second component carrier. Correspondingly, the antenna 1 can transmit uplink data in the scheduled time slot when the first component carrier is in the uplink time slot, and the antenna 2 can transmit uplink data in the scheduled time slot when the second component carrier is in the uplink time slot. It can be seen that the antenna 2 cannot transmit uplink data when the second component carrier is in the downlink time slot, so that the antenna 2 is in an unavailable state in multiple scheduling time slots. Therefore, this static allocation method results in a waste of antenna and carrier resources.

After the implementation mode of the invention is adopted, because the antennas 1 and 2 are in a dynamic scheduling state, when the second member carrier is in a downlink time slot, the first member carrier can be simultaneously distributed to the antenna 1 and the antenna 2 in a space division multiplexing mode, so that the antenna 1 and the antenna 2 can simultaneously play a transmission role. When the second component carrier is in the uplink timeslot, if the carrier bandwidth of the second component carrier is large, the channel transmission quality is good, and/or the traffic load is low, the second component carrier may be simultaneously allocated to the antenna 1 and the antenna 2 in a space division multiplexing manner, so that the antenna 1 and the antenna 2 can simultaneously perform a transmission function; alternatively, the first component carrier and the second component carrier may be allocated to the antenna 1 and the antenna 2, respectively. In short, by the method, the carrier in the downlink time slot can be fully utilized, so that the transmission efficiency of the carrier is improved. The invention does not limit the corresponding relation between the antenna and the distributable carrier, as long as the purpose of fully utilizing the distributable carrier in the current scheduling time slot can be achieved.

Similarly, the purpose of improving the carrier transmission efficiency can also be achieved in both the second example and the third example, which is not described herein again. Therefore, in the conventional static carrier allocation manner, since part of the component carriers are in downlink time slots in some scheduling time slots, uplink antennas corresponding to the part of the component carriers cannot transmit uplink data in the scheduling time slots, so that uplink transmission capability of the terminal device is limited. The embodiment of the invention can solve the problems by dynamically distributing the carriers and improve the utilization rate of the carriers.

To sum up, in the prior art, the uplink antennas are statically allocated among carriers, that is, the terminal antennas are allocated according to the carriers, and each transmitting antenna is fixed on the corresponding carrier to operate, because the number of the uplink transmitting antennas of the terminal is limited and the number of the uplink transmitting streams of each carrier can only be equal to the number of the uplink transmitting antennas to the maximum, the number of the uplink space-division streams of the component carriers is limited when the downlink wave aggregation is performed in the conventional technology, the performance advantage of the uplink multi-carrier cannot be fully exerted, and the number of the added uplink component carriers cannot exceed the number of the uplink antennas of the terminal. The invention increases the uplink sending chance, promotes the number of the uplink space division layers and effectively improves the uplink capacity by dynamically controlling the switching of the terminal transmitting antenna among the carriers. The invention increases the uplink sending opportunity and effectively reduces the transmission time delay by dynamically controlling the switching of the terminal transmitting antenna among the carriers. In addition, the invention can utilize the low-frequency band uplink to supplement the high-frequency band uplink by the cooperation of the high-frequency band and the low-frequency band, thereby improving the uplink coverage. The invention supports the cooperative deployment among cells and among stations, and better ensures the mobility experience of users. In addition, the method can control the terminal transmitting antenna to dynamically switch between carriers, and introduce an uplink inter-carrier time division scheduling technology and an inter-carrier antenna dynamic allocation technology, thereby simultaneously realizing the technical effects of uplink and downlink capacity dual enhancement, coverage improvement and time delay reduction.

In addition, another embodiment of the present invention further provides a wireless communication method, which is mainly applicable to a terminal device side, and specifically includes the following steps:

the method comprises the following steps: and receiving a switching control instruction sent by the base station after determining the distributable member carrier corresponding to the time slot transmission parameter of the current scheduling time slot.

Step two: and acquiring dynamic allocation parameters contained in the switching control instruction, and dynamically allocating the transmission antenna to the allocable member carrier corresponding to the dynamic allocation parameters according to the dynamic allocation parameters.

In specific implementation, the terminal device dynamically controls the antenna to switch among multiple carriers according to an instruction sent by the base station, and details of the specific implementation may refer to corresponding description in the previous embodiment, which is not described herein again.

In addition, the invention further provides a wireless communication device. Fig. 6 shows a schematic structural diagram of the wireless communication apparatus, wherein the wireless communication apparatus shown in fig. 6 may be a base station device. As shown in fig. 6, the wireless communication apparatus includes:

an obtaining module 61, adapted to obtain a time slot transmission parameter of each member carrier corresponding to a current scheduling time slot;

a determining module 62, adapted to determine a component carrier whose time slot transmission parameter matches a preset data transmission direction as an allocable component carrier;

the control module 63 is adapted to send a switching control instruction to the terminal device, so that the terminal device dynamically allocates the transmission antenna to the allocable component carrier according to the dynamic allocation parameter included in the switching control instruction.

Optionally, the control module is specifically adapted to:

and analyzing the wireless frame structure of each member carrier in advance, and judging whether the distributable member carrier in the current scheduling time slot is the same as the distributable member carrier in the last scheduling time slot or not according to the analysis result.

Optionally, when the terminal device has multiple transmit antennas, the dynamically allocating parameters further includes: a number of null streams sub-parameter for indicating the number of antennas corresponding to the allocable carriers.

Optionally, the obtaining module is further adapted to:

The specific structure and working principle of each module may refer to the corresponding description in the method embodiment, and are not described herein again.

According to another embodiment of the present invention, a wireless communication device is provided, and fig. 7 shows a schematic structural diagram of the wireless communication device. The wireless communication apparatus shown in fig. 7 may be a terminal device. As shown in fig. 7, the wireless communication apparatus includes:

a receiving module 71, adapted to receive a handover control instruction sent by the base station after determining the assignable component carriers; wherein the assignable component carriers correspond to time slot transmission parameters of a current scheduling time slot;

the allocating module 72 is adapted to obtain a dynamic allocation parameter included in the switching control instruction, and dynamically allocate the transmission antenna to an allocable component carrier corresponding to the dynamic allocation parameter according to the dynamic allocation parameter.

The specific structure and the working principle of each module may refer to the corresponding description in the method embodiment, and are not described herein again.

In addition, referring to fig. 8, still another embodiment of the present invention provides an electronic apparatus including:

one or more processors 801;

a memory 802 having one or more programs stored thereon that, when executed by the one or more processors, cause the one or more processors to implement the wireless communication method of any of the above;

one or more I/O interfaces 803 coupled between the processor and the memory are configured to enable information interaction between the processor and the memory.

The processor 801 is a device with data processing capability, and includes, but is not limited to, a Central Processing Unit (CPU), and the like; memory 802 is a device having data storage capabilities including, but not limited to, random access memory (RAM, more specifically SDRAM, DDR, etc.), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), FLASH memory (FLASH); an I/O interface (read/write interface) 803 is connected between the processor 801 and the memory 802, and can realize information interaction between the processor 801 and the memory 802, which includes but is not limited to a data Bus (Bus) and the like.

In some embodiments, the processor 801, memory 802, and I/O interface 803 are interconnected via a bus, which in turn, connects with other components of the computing device.

Finally, another embodiment of the present invention provides a computer-readable medium having a computer program stored thereon, which when executed by a processor, implements any of the above-described wireless communication methods.

It will be understood by those of ordinary skill in the art that all or some of the steps of the above inventive method, systems, functional modules/units in the apparatus may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical components in cooperation. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as is well known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. In addition, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media as known to those skilled in the art.

Example embodiments have been invented herein, and although specific terms are employed, they are used and should be interpreted in a generic and descriptive sense only and not for purposes of limitation. In some instances, features, characteristics and/or elements described in connection with a particular embodiment may be used alone or in combination with features, characteristics and/or elements described in connection with other embodiments, unless expressly stated otherwise, as would be apparent to one skilled in the art. It will therefore be understood by those skilled in the art that various changes in form and details may be made therein without departing from the scope of the invention encompassed by the appended claims.

Claims

1. A method of wireless communication, comprising:

determining the member carrier with the time slot transmission parameter matched with the preset data transmission direction as a distributable member carrier;

2. The method of claim 1, wherein the obtaining the time slot transmission parameter corresponding to the current scheduling time slot for each component carrier comprises: when the switching of the scheduling time slot is detected, acquiring time slot transmission parameters of each member carrier corresponding to the current scheduling time slot; wherein the timeslot transmission parameter comprises: an uplink transmission parameter corresponding to an uplink transmission direction;

3. The method according to claim 1, wherein the sending a handover control instruction to a terminal device for the terminal device to dynamically allocate a transmission antenna to the assignable component carriers according to a dynamic allocation parameter included in the handover control instruction specifically includes:

4. The method of claim 3, wherein the determining whether the assignable component carriers in the current scheduling time slot are the same as the assignable component carriers in the previous scheduling time slot specifically comprises:

5. The method of claim 3 or 4, wherein when the terminal device has a plurality of transmit-class transmit antennas, the dynamically allocating parameters further comprises: a number of null streams sub-parameter for indicating the number of antennas corresponding to the assignable component carriers.

6. The method according to claim 1, wherein when the number of assignable component carriers is multiple, the sending a handover control instruction to a terminal device for the terminal device to dynamically assign transmission antennas to the assignable component carriers according to the handover control instruction comprises:

wherein the carrier attribute information comprises at least one of: carrier bandwidth, and channel transmission quality; the terminal device capability information includes at least one of: the number of uplink space division layers supported by the terminal equipment and the maximum modulation order supported by the terminal equipment.

7. The method of claim 1, wherein before obtaining the time slot transmission parameter corresponding to the current scheduling time slot for each component carrier, the method further comprises:

8. A method of wireless communication, comprising:

receiving a switching control instruction sent by a base station after determining distributable member carriers; the assignable member carriers are member carriers with time slot transmission parameters matched with a preset data transmission direction, and the time slot transmission parameters are transmission parameters of current scheduling time slots corresponding to the member carriers;

and acquiring dynamic allocation parameters contained in the switching control instruction, and dynamically allocating the transmission antenna to the allocable member carrier corresponding to the dynamic allocation parameters according to the dynamic allocation parameters.

9. A wireless communications apparatus, comprising:

10. A wireless communications apparatus, comprising:

the receiving module is suitable for receiving a switching control instruction sent by the base station after determining the distributable member carrier; the distributable member carrier is a member carrier with a time slot transmission parameter matched with a preset data transmission direction, and the time slot transmission parameter is a transmission parameter of a current scheduling time slot corresponding to the member carrier;

and the distribution module is suitable for acquiring dynamic distribution parameters contained in the switching control instruction and dynamically distributing the transmission antenna to the distributable member carrier waves corresponding to the dynamic distribution parameters according to the dynamic distribution parameters.

11. An electronic device, comprising:

one or more processors;

storage means on which is stored one or more programs that, when executed by the one or more processors, cause the one or more processors to carry out the method of any one of claims 1-7 or the method of claim 8;

12. A computer-readable medium, on which a computer program is stored which, when being executed by a processor, carries out the method according to any one of the claims 1-7 or the method of claim 8.