CN111837412A

CN111837412A - Communication method, device, equipment and system

Info

Publication number: CN111837412A
Application number: CN201880091102.5A
Authority: CN
Inventors: 李振宇; 张武荣; 韩金侠; 南杨
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2018-04-20
Filing date: 2018-04-20
Publication date: 2020-10-27
Also published as: WO2019200617A1

Abstract

The embodiment of the application provides a communication method, a device, equipment and a system, wherein the method comprises the following steps: the communication equipment determines a target time domain transmission unit of a working frequency point of a target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, a first working frequency point is configured in an adjacent cell adjacent to a target cell, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different; and the communication equipment performs downlink transmission through a target time domain transmission unit of the working frequency point of the target cell. The method and the device simplify the processing process, enable the user equipment to combine all continuous downlink common signals or data according to the target time domain transmission unit, avoid the problems that the combining times are limited and the coverage area is affected, and increase the coverage area.

Description

Communication method, device, equipment and system

Technical Field

The present application relates to the field of communications technologies, and in particular, to a communication method, apparatus, device, and system.

Background

The method is limited by the number of available frequency points, and a scene that the same working frequency point is configured for a plurality of adjacent cells exists. For example, in the wireless communication field operating on an unlicensed frequency point, a base station may deploy the same operating frequency point for an adjacent cell when there are fewer available frequency points.

In the prior art, when the same frequency point is configured for a plurality of adjacent cells, in order to avoid the influence of the co-channel interference between the plurality of cells on the downlink data received by the user equipment, the following processing is generally adopted: before a base station uses a certain frequency point to send signals, whether the frequency point is occupied or not is monitored, and downlink sending is carried out through the frequency point when the frequency point is determined not to be occupied.

However, in the prior art, the method of monitoring first and then sending second has the problems of complex processing and limited merging times and influence on the coverage because the network and the user equipment cannot predict whether the frequency points are occupied and cannot merge continuous data or signals.

Disclosure of Invention

Embodiments of the present application provide a communication method, apparatus, device, and system, so as to solve the problem in the prior art that processing is complex due to a mode of first monitoring and then sending, and the problem that combining times are limited and coverage is affected because a network and a user equipment cannot predict whether a frequency point is occupied and combining between continuous data or signals cannot be performed.

In a first aspect, an embodiment of the present application provides a communication method, including:

the communication equipment determines a target time domain transmission unit of a working frequency point of a target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the communication equipment performs downlink transmission through a target time domain transmission unit of the working frequency point of the target cell.

In the above scheme, by configuring that the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell adjacent to the target cell are different from each other, and the target time domain transmission unit of the first working frequency point is used for downlink common transmission, even if the working frequency points of the target cell and the adjacent cell for downlink common transmission are the same, the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell, which are specifically used for downlink common transmission, are different from each other, thereby avoiding the problem of large same frequency interference when the target cell and the adjacent cell simultaneously perform downlink common transmission, and simplifying the processing process compared with sending after monitoring. And moreover, the user equipment can combine all the continuous downlink common signals or data according to the target time domain transmission unit, so that the problem that the combining times are limited and the coverage range is influenced is avoided, and the coverage range is enlarged.

It should be noted that, the target time domain transmission unit of the first operating frequency point of the target cell and the adjacent cell adjacent to the target cell may also be used to transmit user signals and/or user data. That is, when the target time domain transmission unit of the first operating frequency point is not occupied by the downlink common signal and/or data, the target time domain transmission unit may be used to transmit the user signal and/or the user data. When the target time domain transmission unit of the first working frequency point is used for transmitting user signals and/or user data, and similarly, when the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell adjacent to the target cell are used for transmitting user signals and/or user data, the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell adjacent to the target cell are different from each other.

In one possible implementation design, the working frequency point further includes: and the target time domain transmission unit of the second working frequency point is used for downlink user transmission, the adjacent cell adjacent to the target cell is configured with the second working frequency point, and the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell are different.

In the above scheme, the downlink user transmission may include transmission of downlink user data and/or downlink user signals.

In the above scheme, by configuring different time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell adjacent to the target cell, the target time domain transmission units of the second working frequency points are used for downlink user transmission, so that even if the working frequency points of the target cell and the adjacent cell for downlink user transmission are the same, the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell, which are specifically used for downlink user transmission, are different, thereby avoiding the same frequency interference caused when the target cell and the adjacent cell perform downlink user transmission simultaneously, and further reducing the same frequency interference.

It should be noted that the time domain position of the target time domain transmission unit of the second working frequency point may be determined by the time domain position of the target time domain transmission unit of the first working frequency point.

In one design of possible implementation, the communication device includes a network device or a user equipment.

In one design of possible implementation, the communication device is a network device, and the method further includes:

and the communication equipment sends indication information to user equipment, wherein the indication information is used for indicating the target time domain transmission unit of the working frequency point of the target cell.

In a design that may be implemented, the communication device is a user equipment, and the determining, by the communication device, a target time domain transmission unit of a working frequency point of a target cell includes:

and the communication equipment receives indication information sent by network equipment, wherein the indication information is used for indicating the target time domain transmission unit of the working frequency point of the target cell.

In one possible implementation, the indication information includes at least one of: the offset between the target time domain transmission unit and a preset time domain transmission unit, the index of the target time domain transmission unit, the number of time domain transmission units reserved in a preset time length for downlink transmission, and the number of the working frequency points of the target cell.

In the above scheme, the network device indicates the number of the time domain transmission units for downlink transmission reserved within the preset time length to the user equipment, and the user equipment neither transmits nor receives other time domain transmission units except the target time domain transmission unit in the reserved time domain transmission units for downlink transmission, so that interference between uplink and downlink simultaneous transmission of different network devices or different user equipment, such as interference of adjacent user equipment, is avoided.

In a design that may be implemented, the indication information is bitmap information, the bitmap information includes the number of time domain transmission units reserved within a preset time length and used for downlink transmission, a bit value of a position corresponding to the target time domain transmission unit in the bitmap information is a first bit value, and a bit value of a position not corresponding to the target time domain transmission unit in the bitmap information is a second bit value.

In the above scheme, the bitmap information includes the number of the reserved time domain transmission units for downlink transmission within the preset time length, so that the representation of the unreserved time domain transmission units for downlink transmission in the bitmap information is avoided, and the bit overhead of the bitmap information is reduced.

In one possible implementation design, the number of time domain transmission units reserved within a preset time length for downlink transmission is M1, the number of working frequency points of the target cell is N1, and N1 is a positive integer greater than 1 and less than or equal to M1;

and the target time domain transmission units of the N1 working frequency points are not overlapped in time domain.

In the above scheme, the target time domain transmission units of the N1 working frequency points are not overlapped in the time domain, so that the power spectral density is improved.

In a possible implementation design, the number of time domain transmission units reserved within a preset time length for downlink transmission is M1, the number of working frequency points of the target cell is N1, and N1 is a positive integer greater than M1;

target time domain transmission units of the M1 working frequency points are not overlapped in time domain, and the M1 working frequency points comprise the first working frequency point.

And target time domain transmission units of the (N1-M1) working frequency points are overlapped on the time domain.

In the above scheme, the power spectral density is improved by non-overlapping the target time domain transmission units of the M1 working frequency points in the time domain, and new available frequency points can be directly configured and added by overlapping the target time domain transmission units of the (N1-M1) working frequency points in the time domain, so as to expand the number of the available frequency points and improve the system performance.

In one possible implementation design, the target time domain transmission unit is a timeslot or a subframe, or other time unit, and the scheme is not limited in this respect.

In a design that may be implemented, the number of target time domain transmission units in M2 time domain transmission units with the same working frequency point being consecutive in time domain is N2, M2 is an integer greater than 1, and M2 is a preset multiple of N2.

In the above scheme, by configuring M2 as a preset multiple of N2, and assuming that the preset multiple is k, it can be ensured that the duty ratio of downlink transmission is not greater than (1/k)%, thereby meeting the requirement of the wireless communication system on the duty ratio of the frequency point.

In one possible implementation design, the preset multiple is ten times.

In the above scheme, by presetting the multiple to be 10 times, it can be ensured that the duty ratio of the downlink transmission is not more than 10%, so that the requirement of the European Telecommunications Standards Institute (ETSI) on the duty ratio of the 869.4-869.65MHz unlicensed frequency band is not more than 10% can be met.

In a possible implementation design, the time domain position of the target time domain transmission unit of the first working frequency point of the target cell is related to a cell identifier of the target cell.

In the above scheme, the user equipment and the network equipment can respectively determine the target time domain transmission unit by correlating the time domain position of the target time domain transmission unit of the first working frequency point of the target cell with the cell identifier of the target cell.

In a second aspect, an embodiment of the present application provides a communication device, including:

the determining unit is used for the communication equipment to determine a target time domain transmission unit of the working frequency point of the target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the transmission unit is used for the communication equipment to perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell.

In one design of possible implementation, the communication device is a network device;

the transmission unit is further configured to send indication information to the user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.

In a design that may be implemented, the determining unit is specifically configured to receive indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point in the target cell.

In one possible implementation design, the preset multiple is ten times.

The beneficial effects of the communication device provided by the second aspect may refer to the beneficial effects brought by the implementation manner of the first aspect, and are not described herein again.

In a third aspect, an embodiment of the present application provides a communication device, including:

the processor is used for the communication equipment to determine a target time domain transmission unit of a working frequency point of a target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the transceiver is used for the communication equipment to perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell.

the transceiver is further configured to send indication information to user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.

In a design that may be implemented, the processor is specifically configured to receive, by the transceiver, indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point in the target cell.

In one possible implementation design, the preset multiple is ten times.

The beneficial effects of the communication device provided by the third aspect may refer to the beneficial effects brought by the implementation manner of the first aspect, and are not described herein again.

In a fourth aspect, an embodiment of the present application provides a communication apparatus, including: a processor and a memory;

the memory stores a program;

the processor calls a program stored in the memory to control the communication device to perform the method of any of the first aspect.

In one possible implementation design, the communication device is one or more elements on the communication device.

In one possible implementation, the communication device is the communication device, the communication device further includes a transceiver, and the processor controls transceiving actions of the transceiver.

The beneficial effects of the communication device provided in the fourth aspect may refer to the beneficial effects brought by the implementation manner of the first aspect, and are not described herein again.

In a fifth aspect, an embodiment of the present application provides a communication system, including: the communication device of any of the above second aspects, the communication device of any of the above third aspects, or the apparatus of any of the above fourth aspects.

In a sixth aspect, the present application provides a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a computer, implements the method according to any one of the above first aspects.

In a seventh aspect, this application provides a computer program product, on which a computer program is stored, and when the computer program is executed by a computer, the method of any one of the above first aspects is implemented.

Drawings

FIG. 1 is a schematic diagram of an application architecture according to an embodiment of the present application;

fig. 2 is a flowchart of an embodiment of a communication method provided in an embodiment of the present application;

fig. 3 is a schematic diagram of a neighboring cell according to an embodiment of the present application;

fig. 4A is a first schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 4B is a schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 4C is a third schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 5 is a fourth schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 6 is a schematic diagram of an offset between time domain transmission units according to an embodiment of the present application;

fig. 7 is a schematic diagram of bitmap information provided in an embodiment of the present application;

fig. 8A is a fifth schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 8B is a sixth schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 9A is a first schematic diagram of downlink transmission according to an embodiment of the present application;

fig. 9B is a seventh schematic diagram of a target time domain transmission unit according to an embodiment of the present application;

fig. 10A is a second schematic diagram of downlink transmission according to an embodiment of the present application;

fig. 10B is a first schematic diagram of a cell 1 target time domain transmission unit according to an embodiment of the present application;

fig. 10C is a first schematic diagram of a cell 2 target time domain transmission unit according to an embodiment of the present application;

fig. 10D is a first schematic diagram of a cell 3 target time domain transmission unit according to an embodiment of the present application;

fig. 10E is a schematic diagram of a cell 1 target time domain transmission unit according to an embodiment of the present application;

fig. 10F is a schematic diagram of a cell 2 target time domain transmission unit according to an embodiment of the present application;

fig. 10G is a schematic diagram of a cell 3 target time domain transmission unit according to an embodiment of the present application;

fig. 11 is a first schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 13 is a schematic structural diagram of a communication device provided in the embodiment of the present application;

fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application.

Detailed Description

Fig. 1 is a schematic diagram of an application architecture according to an embodiment of the present application. As shown in fig. 1, the application architecture of the embodiment of the present application may include: network equipment and User Equipment (UE), which may establish a communication connection with the network equipment. The network device and the user device may be collectively referred to as a communication device. The communication equipment can determine a target time domain transmission unit of a working frequency point of a target cell and perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell. The working frequency points include a first working frequency point, a target time domain transmission unit of the first working frequency point can be used for downlink public transmission (for example, downlink public signals and/or downlink public data are transmitted), an adjacent cell adjacent to the target cell configures the first working frequency point, and time domain positions of the target time domain transmission unit of the first working frequency point of the target cell and the adjacent cell are different from each other.

The user equipment, which may also be referred to as a terminal, may include but is not limited to a smart phone (e.g., an Android phone, an IOS phone, etc.), a multimedia device, a streaming media device, a personal computer, a tablet computer, a palmtop computer, a Mobile Internet Device (MID), an internet device such as a wearable smart device, and the like.

The network device may include a base station, where the base station may be a Base Transceiver Station (BTS) in a GSM or system, or an nb (NodeB) in a WCDMA system, or an evolved NodeB (eNB) in an LTE system, or a base station in a fifth generation (5G) mobile communication system (also referred to as a New Radio, NR) may be referred to as a 5G base station (gnnodeb, gNB), or a relay station, or a vehicle-mounted device, a wearable device, and an access network device in a future 5G network or an access network device in a future evolved Public Land Mobile Network (PLMN) network, and the like, and the application is not limited in this application.

The technical solution of the present application will be described in detail below with specific examples. The following several specific embodiments may be combined with each other, and details of the same or similar concepts or processes may not be repeated in some embodiments.

Fig. 2 is a flowchart of an embodiment of a communication method according to an embodiment of the present application. As shown in fig. 2, the method of this embodiment may include:

step 201, the communication device determines a target time domain transmission unit of a target cell working frequency point.

In this step, the working frequency points include a first working frequency point, a target time domain transmission unit of the first working frequency point is used for downlink common transmission, an adjacent cell adjacent to the target cell configures the first working frequency point, and time domain positions of the target time domain transmission unit of the first working frequency point of the target cell and the adjacent cell are different from each other.

Optionally, since inter-cell interference generally exists between physically adjacent cells, the adjacent cell adjacent to the target cell may be understood as a cell physically adjacent to the target cell. For example, as shown in fig. 3, cells adjacent to cell 1 may include cell 2 and cell 3. The cells adjacent to cell 3 may include cell 1, cell 2, and cell 4.

Optionally, the target time domain transmission unit may be a time slot or a subframe, or other time unit, and the scheme is not limited in this embodiment.

Optionally, the communication device may be a network device or a user equipment.

Optionally, the working frequency points configured for the adjacent cell and the target cell may be completely the same or partially the same, which is not limited in this application.

Optionally, the adjacent cell configured with the first operating frequency point may be all or part of all adjacent cells adjacent to the target cell, which is not limited in this application.

Optionally, the first working frequency point is configured in an adjacent cell adjacent to the target cell, and it may be understood that the adjacent cell includes the first working frequency point, and a target time domain transmission unit of the first working frequency point in the adjacent cell is also used for downlink common transmission.

For example, assuming that the target cell is cell 1, the working frequency points configured for cell 1, cell 2, and cell 3 all have frequency point 1, frequency point 1 of cell 1 is a first working frequency point, and frequency points 1 of cell 2 and cell 3 are first working frequency points, then the time domain positions of the target time domain transmission units at frequency point 1 of cell 1, cell 2, and cell 3 are different.

For another example, assuming that the target cell is cell 1, the operating frequency points configured for cell 1, cell 2, and cell 3 all include frequency point 1, and frequency point 1 configured for cell 1, cell 2, and cell 3 is a first operating frequency point, the time domain positions of the target time domain transmission units of frequency point 1 of cell 1, cell 2, and cell 3 are different from each other.

For another example, assuming that the target cell is cell 1, the working frequency points configured for cell 1, cell 2, and cell 3 may all be frequency point 1, frequency point 2, and frequency point 3, and frequency point 1 of cell 1 is the first working frequency point, the time domain positions of the target time domain transmission units at frequency point 1 of cell 1, cell 2, and cell 3 are different.

For another example, assuming that the target cell is cell 2, the working frequency points configured for cell 1, cell 2, and cell 3 may all be frequency point 1, frequency point 2, and frequency point 3, and frequency point 2 of cell 2 is the first working frequency point, the time domain positions of the target time domain transmission units at frequency point 2 of cell 2 and cell 1 and cell 3 are different from each other.

For another example, assuming that the target cell is cell 1, the working frequency points configured for cell 1 are frequency point 1, frequency point 2 and frequency point 3, the working frequency points configured for cell 2 are frequency point 1 and frequency point 4, the working frequency points configured for cell 3 are frequency point 1 and frequency point 5, and frequency point 1 of cell 1 is the first working frequency point, the time domain positions of the target time domain transmission units of frequency point 1 of cell 1, cell 2 and cell 3 are different from each other.

For another example, assuming that the target cell is cell 1, the working frequency points configured for cell 1 are frequency point 1, frequency point 2 and frequency point 3, the working frequency points configured for cell 2 are frequency point 1 and frequency point 4, the working frequency points configured for cell 3 are frequency point 2 and frequency point 5, and frequency point 1 of cell 1 is the first working frequency point, the time domain positions of the target time domain transmission units of frequency point 1 of cell 1 and cell 2 are different from each other.

Optionally, the first working frequency point may also be used for downlink user transmission and/or uplink transmission. For example, the first operating frequency point may also be used to transmit downlink user signals and/or downlink user data, and/or the first operating frequency point may also be used to transmit uplink user signals and/or uplink user data. Optionally, the target time domain transmission unit not in the first working frequency point may be used for downlink user transmission and/or uplink transmission.

The downlink user transmission may be, for example, transmission of a downlink user signal and/or downlink user data.

The downlink common signal may include a Primary Synchronization Signal (PSS) and a Secondary Synchronization Signal (SSS) transmitted through a physical downlink synchronization channel (PSCH). The downlink common data may include a master information block (master information block) transmitted through a physical downlink broadcast channel (PBCH) and/or a System Information Block (SIB) transmitted through a Physical Downlink Shared Channel (PDSCH). The downlink user signal may include a Demodulation Reference Signal (DRS). The downlink user data may include data transmitted through a Physical Downlink Control Channel (PDCCH) or a Physical Downlink Shared Channel (PDSCH). The uplink user signal may include a demodulation reference signal (SRS) or a Sounding Reference Signal (SRS), for example. The uplink user data may include data transmitted through a Physical Uplink Control Channel (PUCCH) or data transmitted through a Physical Uplink Shared Channel (PUSCH) or a preamble transmitted through a Physical Random Access Channel (PRACH).

Optionally, the number of the first working frequency points of the target cell may be one or more, which is not limited in this application. When the number of the first working frequency points is multiple, the target time domain transmission positions of different first working frequency points in the target cell can be the same or different, the application does not limit the target time domain transmission positions, and the number of the first working frequency points in the target cell is explained as one.

Taking the first working frequency point as frequency point 1, the target cell as cell 1, the cells adjacent to cell 1 as

cells

2 and 3, and all

cells

1, 2, and 3 are configured with frequency point 1 as the first working frequency point, the time domain positions of the target time domain transmission units of frequency points 1 of cell 1, cell 2, and cell 3 may be different as shown in fig. 4A or fig. 4B. One rectangular box in fig. 4A or fig. 4B and fig. 4C described below may represent one time domain transmission unit, and a shaded filled rectangular box may represent a target time domain transmission unit.

It should be noted that, in fig. 4A or fig. 4B, the target time domain transmission units of each cell frequency point 1 appear cyclically, and the cycle periods are the same as an example, the target time domain transmission units of each cell frequency point 1 may not appear cyclically, or appear cyclically but the cycle periods may be different, which is not limited in this application. In fig. 4A or fig. 4B, the boundaries of the time domain transmission units of the cell 1, the cell 2, and the cell 3 are aligned as an example, and the boundaries of the time domain transmission units of the cell 1, the cell 2, and the cell 3 may also be not aligned, which is not limited in this application. As shown in fig. 4C, the boundaries of the time domain transmission units of cell 1, cell 2, and cell 3 may also be misaligned.

In the embodiment of the application, by configuring different time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell adjacent to the target cell, the target time domain transmission units of the first working frequency points are used for downlink public transmission, so that even if the working frequency points of the target cell and the adjacent cell for downlink public transmission are the same, the target cell and the adjacent cell are different in the time domain positions of the target time domain transmission units of the first working frequency points, which are specifically used for downlink public transmission, thereby avoiding the problem of great same frequency interference when the target cell and the adjacent cell simultaneously carry out downlink public transmission, and compared with sending after monitoring, simplifying the processing process. And moreover, the user equipment can combine all the continuous downlink common signals or data according to the target time domain transmission unit, so that the problem that the combining times are limited and the coverage range is influenced is avoided, and the coverage range is enlarged.

It should be noted that, since the data content transmitted by the downlink user has a certain randomness, the interference between the user signals/data has a certain randomness. The content of the downlink common signal and/or the common data is generally not changed in a certain period, and if cells of the same-frequency networking transmit the common signal and/or the common data on the same time-frequency resource, interference between the cells is fixed, and the demodulation performance of the user equipment on the downlink common signal and/or the common data is affected. The method and the device mainly solve the problem of interference of sending public signals and/or data on the same frequency point by adjacent cells in a time division mode of a time domain transmission unit.

Optionally, the working frequency point further includes: and the target time domain transmission unit of the second working frequency point is used for downlink user transmission, the second working frequency point is configured in an adjacent cell adjacent to the target cell, and the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell are different, so that the same frequency interference on the second working frequency point of the adjacent cell can be further reduced.

Optionally, the adjacent cell configured with the second operating frequency point may be all or part of all adjacent cells adjacent to the target cell, which is not limited in this application. It should be noted that, the adjacent cell configured with the first operating frequency point may be completely the same as, partially the same as, or completely different from the adjacent cell configured with the second operating frequency point, and this is not limited in this application.

Optionally, the second working frequency point is configured in an adjacent cell adjacent to the target cell, and it may be understood that the adjacent cell includes the second working frequency point, and a target time domain transmission unit of the second working frequency point in the adjacent cell is also used for downlink user transmission.

For example, assume that the target cell is cell 1, the working frequency points configured for cell 1, cell 2, and cell 3 can be frequency point 1, frequency point 2, and frequency point 3, and frequency point 1 of cell 1 is a first working frequency point, and frequency point 2 and frequency point 3 of cell 1 are second working frequency points, then the time domain positions of the target time domain transmission units of frequency point 1 of cell 1, cell 2, and cell 3 are different, the time domain positions of the target time domain transmission units of frequency point 2 of cell 1, cell 2, and cell 3 are different, and the time domain positions of the target time domain transmission units of frequency point 3 of cell 1, cell 2, and cell 3 are different.

For another example, assuming that the target cell is cell 1, the working frequency points configured for cell 1 are frequency point 1, frequency point 2 and frequency point 3, the working frequency points configured for cell 2 are frequency point 1 and frequency point 3, the working frequency points configured for cell 3 are frequency point 1 and frequency point 5, and frequency point 1 of cell 1 is a first working frequency point, and frequency point 2 and frequency point 3 of cell 1 are a second working frequency point, the time domain positions of the target time domain transmission units of frequency point 1 of cell 1, cell 2 and cell 3 are different, and the time domain positions of the target time domain transmission units of frequency point 3 of cell 1 and cell 2 are different.

Optionally, the second operating frequency point may also be used for uplink transmission, where the uplink transmission may be, for example, transmission of uplink user signals and/or uplink user data.

It should be noted that the number of the second operating frequency points of the target cell may be 0, one, or multiple, and this is not limited in this application. When the number of the second working frequency points is multiple, the target time domain transmission positions of different second working frequency points of the target cell may be the same or different.

Optionally, time domain positions of the target time domain transmission units of the first working frequency point and the second working frequency point of the target cell are different, and time domain positions of the target time domain transmission units of the plurality of second working frequency points of the target cell are different.

Here, the time domain positions of the target time domain transmission units of the first operating frequency point and the second operating frequency point of the target cell are different, and the time domain positions of the target time domain transmission units of the plurality of second operating frequency points of the target cell are different, so that it can be ensured that downlink transmission is performed at maximum transmission power when downlink transmission is performed at each configured frequency point, and power division of the plurality of frequency points in a frequency domain is not required. For example, 3 working frequency points, frequency point 1, frequency point 2 and frequency point 3 are configured in the downlink, and the frequency point 1 is a first working frequency point and is used for sending a common signal and/or common data. Frequency point 2 and frequency point 3 are both the second working frequency point, so that the target time domain transmission units of frequency point 1, frequency point 2 and frequency point 3 are different in time domain, and it can be ensured that the target time domain transmission units can be transmitted at the maximum transmission power when downlink transmission is performed at frequency point 1, frequency point 2 and frequency point 3.

It should be noted that optionally, if the number of the reserved time domain transmission units for performing downlink transmission is less than the number of the first working frequency point plus the second working frequency point of the target cell, the time domain positions of the target time domain transmission units of the first working frequency point and the second working frequency point of the target cell are different, and the time domain positions of the target time domain transmission units of the plurality of second working frequency points of the target cell may be partially the same or all the same.

The first working frequency point is used as the frequency point 1, the second working frequency point is used as the frequency point 2, the target cell is the cell 1, the adjacent cells of the cell 1 are the cell 2 and the cell 3, and the cell 1, the cell 2 and the cell 3 are all configured with the frequency point 1 and the frequency point 2 as examples, the time domain positions of the target time domain transmission units of the frequency point 1 of the cell 1, the cell 2 and the cell 3 are different, and the time domain positions of the target time domain transmission units of the frequency point 2 of the cell 1, the cell 2 and the cell 3 are different, which can be shown in fig. 5. One rectangular box in fig. 5 may represent one time domain transmission unit, and the shaded filled rectangular box may represent a target time domain transmission unit.

It should be noted that, in fig. 5, for example, the target time domain transmission units of each cell frequency point 1 appear cyclically, and the cycle periods are the same, the target time domain transmission units of each cell frequency point 1 may also not appear cyclically, or appear cyclically but the cycle periods may be different, which is not limited in this application. In fig. 5, the boundaries of the time domain transmission units of the cell 1, the cell 2, and the cell 3 are aligned as an example, and the boundaries of the time domain transmission units of the cell 1, the cell 2, and the cell 3 may not be aligned, which is not limited in this application.

In the embodiment of the application, the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell adjacent to the target cell are different in time domain position, and the target time domain transmission units of the second working frequency points are used for downlink user transmission, so that even if the working frequency points of the target cell and the adjacent cell for downlink user transmission are the same, the target cell and the adjacent cell are different in time domain position of the target time domain transmission units of the second working frequency points specifically used for downlink user transmission, and the same frequency interference caused when the target cell and the adjacent cell perform downlink user transmission simultaneously is avoided, thereby further reducing the same frequency interference.

Optionally, when there are multiple working frequency points of the target cell, downlink common transmission may be performed only on one frequency point of the multiple frequency points, for example, transmission of PSS, SSS, PBCH, and SIB is performed on one frequency point. The advantage of this is that when the frequency point number of the target cell changes, different frequency point number values can be adapted. That is, when the number of frequency points is increased, downlink user transmission, for example, including but not limited to transmission of PDCCH and PDSCH channels, may be performed only on the increased frequency points.

Optionally, the network device and the user equipment may respectively determine the target time domain transmission unit of the working frequency point of the target cell. For example, both the network device and the user equipment may determine the target time domain transmission unit of the first working frequency point of the target cell according to the cell identifier of the target cell. Or, the network device may determine the target time domain transmission unit of the first working frequency point of the target cell, and indicate the target time domain transmission unit of the first working frequency point of the target cell to the user equipment.

Optionally, the time domain position of the target time domain transmission unit of the first working frequency point of the target cell is related to the cell identifier of the target cell. That is, the time domain position of the target time domain transmission unit of the working frequency point of the target cell may be determined according to the cell identifier of the target cell. For example, according to different cell identifiers, the time domain positions of the target time domain transmission units of the determined working frequency points are different; or, according to the cell identifiers meeting the same condition, the time domain positions of the target time domain transmission units of the determined working frequency points are the same, and according to the cell identifiers meeting different conditions, the time domain positions of the target time domain transmission units of the determined working frequency points are different.

Optionally, when the communication device is a network device, the method further includes:

Optionally, when the communication device is a user equipment, the determining, by the communication device, a target time domain transmission unit of a working frequency point of a target cell may specifically include:

Optionally, the indication information may include at least one of the following: the offset between the target time domain transmission unit and a preset time domain transmission unit, the index of the target time domain transmission unit, the number of time domain transmission units reserved in a preset time length for downlink transmission, and the number of the working frequency points of the target cell.

Optionally, the offset may be an integer. For example, as shown in fig. 6, assuming that the time domain position of the time domain unit is preset to be period 1 and the offset is 2, it may indicate that the time domain position of the target time domain transmission unit is period 3. For another example, assuming that the time domain position of the time domain unit is preset to be time period 0, and the offset is 0, it may indicate that the time domain position of the target time domain transmission unit is time period 0. For another example, assuming that the time domain position of the time domain unit is preset to be period 3 and the offset is-1, it may indicate that the time domain position of the target time domain transmission unit is period 2.

Alternatively, the time periods and the indexes may correspond to one another, for example, time period 1 may correspond to index 1, time period 2 may correspond to index 2, time period 3 may correspond to index 3, time period 4 may correspond to indexes 4, … …, and time period 15 may correspond to index 15. Or, in the same time cycle, the period and the index may correspond to each other one by one, and the indexes in different time cycles are the same, for example, period 1, period 6, and period 11 may correspond to index 1, period 2, period 7, and period 12 may correspond to index 2, period 3, period 8, and period 13 may correspond to index 3, period 4, period 9, and period 14 may correspond to index 4, and period 5, period 10, and period 15 may correspond to index 5.

Optionally, when the time domain transmission unit is a subframe, the index may specifically be a subframe number.

Optionally, the preset time length may be greater than or equal to the time lengths of the multiple time domain transmission units. For example, the time duration of the time domain transmission unit is 1ms, and the preset time duration may be equal to the length of 10 time domain transmission units, i.e. 10 ms.

Optionally, the number of the time domain transmission units reserved in the preset time length for downlink transmission may be one or more. Optionally, the reserved time length may further include a time domain transmission unit for performing uplink transmission.

It should be noted that the number of target time domain transmission units in the preset time length may be one or more, which is not limited in this application. Optionally, if a plurality of target time domain transmission units are included in the preset time length, and the network device indicates the target time domain transmission unit of the first working frequency point to the user equipment, the network device may indicate only one target time domain transmission unit (for example, the time domain transmission unit with the most front time domain position) of the plurality of target time domain transmission units to the user equipment, and the user equipment may determine other target time domain transmission units according to the target time domain transmission unit.

In the embodiment of the application, the network device indicates the number of the time domain transmission units for downlink transmission reserved in the preset time length to the user equipment, and the user equipment can neither transmit nor receive other time domain transmission units except the target time domain transmission unit in the reserved time domain transmission units for downlink transmission, so that interference between uplink and downlink simultaneous transmission of different network devices or different user equipment, such as interference of adjacent user equipment, is avoided. In addition, the number of the working frequency points of the target cell is indicated to the user equipment through the network equipment, and the user equipment can receive downlink signals/data on one or more target time domain transmission units.

Optionally, the indication information may be bitmap information.

Further optionally, the bitmap information includes the number of time domain transmission units reserved within a preset time length and used for downlink transmission, a bit value of a position corresponding to the target time domain transmission unit in the bitmap information is a first bit value, and a bit value of a position not corresponding to the target time domain transmission unit is a second bit value. Optionally, the bit length of the bitmap information may be equal to the number of time domain transmission units reserved in a preset time length and used for downlink transmission. Optionally, the first bit value may be 1, and the second bit value may be 0.

For example, as shown in fig. 7, the bitmap information may indicate that the number of time domain transmission units reserved in the preset time length for downlink transmission is 3, and of the 3 time domain transmission units reserved in the preset time length for downlink transmission, the time domain transmission unit that is most advanced in time is a target time domain transmission unit, and the other two time domain transmission units are non-target time domain transmission units.

In the embodiment of the application, the bitmap information comprises the number of the reserved time domain transmission units for downlink transmission within the preset time length, so that the representation of the unreserved time domain transmission units for downlink transmission in the bitmap information is avoided, and the bit overhead of the bitmap information is reduced.

Further optionally, in order to improve the power spectral density, when the number of the working frequency points of the target cell is multiple, it may be ensured that the time domain positions of the target time domain transmission units at different working frequency points are different as much as possible.

Optionally, assuming that the number of time domain transmission units reserved within a preset time length for downlink transmission is M1, the number of the working frequency points of the target cell is N1, and when N1 is a positive integer greater than 1 and less than or equal to M1, the target time domain transmission units of N1 working frequency points are not overlapped in a time domain. Assuming that M1 and N1 are equal to 3, and 3 operating frequencies are frequency point 1, frequency point 2, and frequency point 3, respectively, the target time domain transmission unit of each of the 3 frequency points may be as shown in fig. 8A, for example. In fig. 8A and fig. 8B described below, one rectangular box may represent one time domain transmission unit, and the shaded rectangular box may represent a target time domain transmission unit.

Optionally, when N1 is a positive integer greater than 1 and greater than M1, target time domain transmission units of M1 working frequency points in the N1 working frequency points are not overlapped in a time domain, where the M1 working frequency points include the first working frequency point; and target time domain transmission units of the (N1-M1) working frequency points are overlapped on the time domain. Assuming that M1 is equal to 3, N1 is equal to 4, and the 4 operating frequencies are frequency point 1, frequency point 2, frequency point 3, and frequency point 4, respectively, the target time domain transmission units of the 4 frequency points may be, for example, as shown in fig. 8B.

Optionally, if the number of the reserved time domain transmission units for performing downlink transmission is less than the number of the first working frequency points plus the number of the second working frequency points of the target cell, the time domain positions of the target time domain transmission units of the first working frequency points and the second working frequency points of the target cell are all different, and the time domain positions of the target time domain transmission units of the plurality of second working frequency points of the target cell may be partially the same or all the same. As shown in fig. 8B, the frequency point 1 may be used as a first working frequency point, the frequency points 2 to 4 may be used as a second working frequency point, the time domain positions of the target time domain transmission units of the frequency points 2, 3 and 4 are all different for the frequency point 1, the time domain positions of the target time domain transmission units of the frequency points 3 and 4 are the same, and the time domain positions of the target time domain transmission units of the frequency points 2 and 3 are different.

Further optionally, the target time domain transmission unit of the second working frequency point may be determined according to the target time domain transmission unit of the first working frequency point. For example, as shown in fig. 8A, if frequency point 1 is a first operating frequency point, frequency points 2 and 3 are second operating frequency points, and the index of the target time domain transmission unit of the first operating frequency point is 1, the index of the target time domain transmission unit of frequency point 2 can be determined to be 1+1 ═ 2, and the index of the target time domain transmission unit of frequency point 3 can be determined to be 1+2 ═ 3.

Optionally, the number of target time domain transmission units in M2 time domain transmission units with consecutive time domains at the same working frequency point is N2, M2 is an integer greater than 1, and M2 is a preset multiple of N2. Optionally, in the M2 consecutive time domain units, M21 time domain transmission units may be reserved time domain transmission units for downlink transmission, M21 time domain transmission units may include target time domain transmission units, M22 time domain transmission units may be used for uplink transmission, and M21+ M22 may be less than or equal to M2. In the embodiment of the present application, M2 is a preset multiple of N2, and it is assumed that the preset multiple is K, so that it can be ensured that a Duty Cycle (DC) of downlink transmission is not greater than (1/K)%, thereby meeting the requirement of a wireless communication system for the duty cycle. In a system with duty ratio limitation, the length of time for transmission within a period of time on the same working frequency point is limited, for example, if the required duty ratio is 10%, the time for transmission within 1 hour (3600 seconds) cannot exceed 360 seconds.

Optionally, the preset multiple is 10 times. In the embodiment of the application, the preset multiple is 10 times, so that the duty ratio of downlink transmission is not more than 10%, and the requirement on the duty ratio under an unauthorized communication system can be met.

Hereinafter, taking a time domain transmission unit as a subframe, 1 radio frame including 10 subframes, and a requirement of the communication system for a duty ratio not greater than 10%, as an example, the following examples 1 and 2 are described as an example.

Example 1

In fig. 9A, the operating frequency points of cell 1 include only frequency point 1, and "0" - "19" represents the radio frame number. There may be only one downlink subframe in one radio frame for transmitting PSS, SSS, PBCH, SIB, PDCCH, or PDSCH, etc., and one rectangular frame may represent one subframe.

As shown in fig. 9A, under the requirement of 10% duty cycle, the single transmission durations of the PSS, SSS, PBCH, and SIB are all 1ms, and the transmission periods are 40ms, 160ms, 80ms, and 160ms, respectively, that is, the downlink overhead of the PSS, SSS, PBCH, and SIB is 5% and less than the requirement of 10% duty cycle, so that 5% of resources can be used for user transmission.

In each radio frame, downlink subframes not occupied by PSS, SSS, PBCH, or SIB may be used for transmitting PDCCH or PDSCH. The other subframes may all be uplink subframes.

In fig. 9A, since the default subframe 0 of the cell 1 and only the subframe 0 may be a downlink subframe actually used for downlink transmission (i.e., the target time domain transmission unit), if the neighboring cells of the cell 1 also perform downlink transmission in the subframe 0, the user equipment (e.g., for the user equipment at the cell boundary) may receive downlink signals and/or data from two cells at the same time, and is easily interfered. Therefore, the target transmission unit of the neighboring cell may be offset with respect to the subframe 0 to obtain a subframe actually used for downlink transmission by the neighboring cell, which is described in detail as follows:

further, assuming that the cell 1 has two neighboring cells, which are respectively denoted as cell 2 and cell 3, the downlink subframe actually used for downlink transmission in the radio frame of 3 cells may be as shown in fig. 9B. In fig. 9B, one rectangular box may represent one subframe, a shaded rectangular box may represent a downlink subframe actually used for downlink transmission, a rectangular box identified by U may represent an uplink subframe that may be used for uplink transmission, and the first 3 subframes may be used to represent subframes reserved for downlink transmission. It can be seen that although the working frequency points of the 3 cells are the same, the downlink transmissions of the 3 cells are staggered in time, so that co-channel interference can be effectively avoided.

Optionally, on the basis of example 1, when there are multiple working frequency points of the cell, the transmission of the PSS, the SSS, the PBCH, and the SIB may be performed on only one frequency point. This has the advantage that the design can adapt to different channel number values when the channel number varies.

That is, when the number of channels is increased, downlink user data information, including but not limited to PDCCH and PDSCH channels, is transmitted only on the increased channels.

Example 2

On the basis of example 1, when there are multiple working frequency points of a cell, it is assumed that transmission of PSS, SSS, PBCH, SIB is performed on only one frequency point.

As shown in fig. 10A, when the working frequency points of cell 1 include frequency point 1, frequency point 2, and

frequency point

3, and 3 frequency points, for frequency point 1, cell 1 does not perform downlink transmission on subframe 0 of frequency point 1, but does not perform downlink transmission on subframe 0 of frequency point 2 and frequency point 3; for frequency point 2, when cell 1 performs downlink transmission on subframe 1 of frequency point 2, downlink transmission is not performed on subframe 1 of frequency point 1 and frequency point 3; for frequency point 3, when cell 1 performs downlink transmission in subframe 3 of frequency point 3, downlink transmission is not performed in subframe 3 of frequency point 1 and frequency point 2. In this way, the downlink subframes of each frequency point may also be staggered in time.

When the total transmission power of the network equipment is limited, the smaller the number of the simultaneously transmitted frequency points is, the larger the power spectrum is, the better the remote user equipment can be served and the signal power reduction caused by the link deep attenuation can be resisted. Therefore, when the downlink resources are not limited, even if the base station can transmit on different frequency points, the base station can transmit in a staggered manner in time, so that the power spectral density is prevented from being reduced.

In fig. 10A, a subframe corresponding to "no transmission" may be understood as a subframe that is not used for transmission.

Further, assuming that the cell 1 has two neighboring cells, which are respectively denoted as cell 2 and cell 3, downlink subframes actually used for downlink transmission in 3-cell radio frames may be as shown in fig. 10B to fig. 10D. In fig. 10B-10D, for frequency point 1, cell 1 performs downlink transmission on subframe 0, cell 2 performs downlink transmission on subframe 2, and cell 3 performs downlink transmission on subframe 1; for frequency point 2, cell 1 performs downlink transmission on subframe 1, cell 2 performs downlink transmission on subframe 0, and cell 3 performs downlink transmission on subframe 2; for frequency point 3, cell 1 performs downlink transmission on subframe 2, cell 2 performs downlink transmission on subframe 1, and cell 3 performs downlink transmission on subframe 0. Therefore, the same frequency points avoid same frequency interference by time staggering, and different frequency points of the same cell are also staggered in time, so that the power spectral density is prevented from being reduced.

Further, on the basis of fig. 10B to 10D, when the number of frequency points is greater than the number of reserved subframes for downlink transmission, for example, when 3 cells are newly added with frequency point 4, downlink subframes actually used for downlink transmission in radio frames of 3 cells may be as shown in fig. 10E to 10G.

It should be noted that, in fig. 10B to fig. 10G, one rectangular box may represent one subframe, a shaded rectangular box may represent a downlink subframe actually used for downlink transmission, a rectangular box identified by U may represent an uplink subframe that may be used for uplink transmission, the first 3 subframes may be used to represent reserved subframes for downlink transmission, and "0" - "9" represents a subframe number.

Step 202, the communication device performs downlink transmission through a target time domain transmission unit of the working frequency point of the target cell.

In this step, when the communication device is a network device, step 202 may specifically include: the network equipment can determine a target time domain transmission unit of a working frequency point of a target cell and perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell. When the communication device is a user device, step 202 may specifically include: the user equipment can determine a target time domain transmission unit of a working frequency point of a target cell and perform downlink receiving through the target time domain transmission unit of the working frequency point of the target cell.

Specifically, for the first operating frequency point, the method may specifically include: and performing downlink common transmission through a target time domain transmission unit of the first working frequency point of the target cell. Optionally, the downlink common signal and/or downlink common data may be sent through a target time domain transmission unit of the first working frequency point of the target cell.

Optionally, when the working frequency point includes a second working frequency point, the method may further include: and performing downlink user transmission through a target time domain transmission unit of the first working frequency point of the target cell. Optionally, the downlink user signal and/or the downlink user data may be sent through a target time domain transmission unit of the first working frequency point of the target cell.

Fig. 11 is a first schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 11, the communication device provided in this embodiment may include: a determination unit 1101 and a transmission unit 1102.

The determining unit 1101 is a target time domain transmission unit, configured to determine a working frequency point of a target cell by a communication device; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

a transmission unit 1102, configured to perform downlink transmission by the communication device through a target time domain transmission unit of the working frequency point of the target cell.

the transmission unit 1102 is further configured to send indication information to the user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.

In a design that may be implemented, the determining unit 1101 is specifically configured to receive indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point of the target cell.

In one possible implementation design, the preset multiple is ten times.

The communication device of this embodiment may be used in the technical solution of the embodiment shown in fig. 2, and the implementation principle and the technical effect are similar, which are not described herein again.

It should be noted that the above division of the units of the communication device is only a division of logical functions, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these units can be implemented entirely in software, invoked by a processing element; or may be implemented entirely in hardware; and part of the units can be realized in the form of calling by a processing element through software, and part of the units can be realized in the form of hardware. For example, the sending unit may be a processing element that is set up separately, or may be implemented by being integrated in a chip of the network device, or may be stored in a memory of the network device in the form of a program, and the function of the sending unit may be called and executed by a processing element of the network device. The other units are implemented similarly. In addition, all or part of the units can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, the steps of the method or the units above may be implemented by hardware integrated logic circuits in a processor element or instructions in software. Further, the above transmission unit is a unit that controls transmission, and information can be received by a transmission means of the network device, such as an antenna and a radio frequency means.

The above units may be one or more integrated circuits configured to implement the above methods, for example: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. As another example, when one of the above units is implemented in the form of a Processing element scheduler, the Processing element may be a general purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling programs. As another example, these units may be integrated together and implemented in the form of a system-on-a-chip (SOC).

Fig. 12 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 12, the communication device provided in this embodiment may include: a processor 1201 and a transceiver 1202.

The processor 1201 is configured to determine, by the communication device, a target time domain transmission unit of a target cell working frequency point; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink common transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

a transceiver 1202, configured to perform downlink transmission by the communication device through a target time domain transmission unit of the working frequency point of the target cell.

the transceiver 1202 is further configured to send indication information to the user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.

In a design that may be implemented, the processor 1201 is specifically configured to receive, by the transceiver 1202, indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point in the target cell.

In one possible implementation design, the preset multiple is ten times.

Fig. 13 is a schematic structural diagram of a communication device according to an embodiment of the present application. The communication device 1300 includes a processor 1301, a memory 1302, a transceiver 1303, and a bus 1304. The processor 1301, the memory 1302, and the transceiver 1303 (which may include a transmitter and a receiver) are interconnected via a bus 1304. The bus 1304 may be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus. The bus 1304 may be divided into an address bus, a data bus, a control bus, and the like. For ease of illustration, only one thick line is shown in FIG. 13, but does not indicate only one bus or one type of bus.

The memory 1302 is used for storing application program codes for executing the scheme of the application, and the processor 1301 controls the execution. The processor 1301 is configured to execute the application program code stored in the memory 1302, thereby implementing the methods of the above-described method embodiments.

Alternatively, in this embodiment of the application, the processor 1301 may execute a function related to processing in the method of the foregoing method embodiment of the application, and the transceiver 1303 is responsible for communicating with other devices or a communication network, which is not specifically limited in this embodiment of the application.

Embodiments of the present invention also provide a computer-readable storage medium having one or more program codes stored therein, where when the program codes are executed by the processor 1301 of the communication apparatus 1300, the communication apparatus 1300 performs the relevant method steps of any of the method embodiments of the present invention.

For the detailed description of each module or unit in the communication device 1300 and the technical effects brought by each module or unit after executing the related method steps of any method embodiment of the present invention provided by the embodiment of the present invention, reference may be made to the related description in the method embodiment of the present invention, and no further description is given here.

Fig. 14 is a schematic structural diagram of a communication device according to an embodiment of the present application. As shown in fig. 14, a communication apparatus provided in an embodiment of the present application includes: a processor 1401, and a memory 1402.

Wherein the memory 1402 stores programs;

the processor 1401 invokes a program stored in the memory 1402 to control the communication device to perform the method according to the above-described method embodiments.

Optionally, the apparatus of this embodiment is one or more components on the communication device.

Optionally, the apparatus of this embodiment is the communication device, where the communication device further includes a transceiver, and the processor controls a transceiving action of the transceiver.

An embodiment of the present application further provides a communication system, including: a communication device as described in the embodiments shown in fig. 11, fig. 12 or 13, or a communication apparatus as described in the embodiment shown in fig. 14.

The embodiment of the present application further provides a computer program product, on which a computer program is stored, and the computer program, when executed by a computer, implements the method described in the above method embodiment.

In the above embodiments, the implementation may be wholly or partially realized by software, hardware, firmware, or any combination thereof. When implemented using a software program, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions described in accordance with the embodiments of the present application are all or partially generated upon loading and execution of computer program instructions on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, from one website, computer, server, or data center to another website, computer, server, or data center via wire (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or can comprise one or more data storage devices, such as a server, a data center, etc., that can be integrated with the medium. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

Claims

A method of communication, comprising:

the communication equipment determines a target time domain transmission unit of a working frequency point of a target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the communication equipment performs downlink transmission through a target time domain transmission unit of the working frequency point of the target cell.
The method of claim 1, wherein the working frequency point further comprises: and the target time domain transmission unit of the second working frequency point is used for downlink user transmission, the adjacent cell adjacent to the target cell is configured with the second working frequency point, and the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell are different.
The method according to claim 1 or 2, wherein the communication device is a network device, and before performing downlink transmission by using a target time domain transmission unit of the working frequency point of the target cell, the method further includes:

and the communication equipment sends indication information to user equipment, wherein the indication information is used for indicating the target time domain transmission unit of the working frequency point of the target cell.
The method according to claim 1 or 2, wherein the communication device is a user equipment, and the determining, by the communication device, a target time domain transmission unit of a working frequency point of a target cell includes:

and the communication equipment receives indication information sent by network equipment, wherein the indication information is used for indicating the target time domain transmission unit of the working frequency point of the target cell.
The method according to claim 3 or 4, wherein the indication information comprises at least one of the following: the offset between the target time domain transmission unit and a preset time domain transmission unit, the index of the target time domain transmission unit, the number of time domain transmission units reserved in a preset time length for downlink transmission, and the number of the working frequency points of the target cell.
The method according to claim 3 or 4, wherein the indication information is bitmap information, the bitmap information includes the number of time domain transmission units reserved within a preset time length for downlink transmission, a bit value of a position corresponding to the target time domain transmission unit in the bitmap information is a first bit value, and a bit value of a position not corresponding to the target time domain transmission unit in the bitmap information is a second bit value.
The method according to claim 5 or 6, wherein the number of time domain transmission units reserved for downlink transmission within a preset time length is M1, the number of the working frequency points of the target cell is N1, and N1 is a positive integer greater than 1 and less than or equal to M1;

and the target time domain transmission units of the N1 working frequency points are not overlapped in time domain.
The method as claimed in any one of claims 1 to 7, wherein the number of target time domain transmission units in M2 time domain transmission units that are consecutive in the time domain of the same operating frequency point is N2, M2 is an integer greater than 1, and M2 is a preset multiple of N2.
The method according to any of claims 1 to 8, wherein the time domain position of the target time domain transmission unit of the first operating frequency point of the target cell is related to the cell identifier of the target cell.
A communication device, comprising:

the determining unit is used for the communication equipment to determine a target time domain transmission unit of the working frequency point of the target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the transmission unit is used for the communication equipment to perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell.
The communications device of claim 10, wherein the operating frequency point further comprises: and the target time domain transmission unit of the second working frequency point is used for downlink user transmission, the adjacent cell adjacent to the target cell is configured with the second working frequency point, and the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell are different.
The communication device according to claim 10 or 11, wherein the communication device is a network device;

the transmission unit is further configured to send indication information to the user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.
The communication device according to claim 10 or 11, wherein the determining unit is specifically configured to receive indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point in the target cell.
The communication device according to claim 12 or 13, wherein the indication information comprises at least one of: the offset between the target time domain transmission unit and a preset time domain transmission unit, the index of the target time domain transmission unit, the number of time domain transmission units reserved in a preset time length for downlink transmission, and the number of the working frequency points of the target cell.
The communication device according to claim 12 or 13, wherein the indication information is bitmap information, the bitmap information includes the number of time domain transmission units reserved for downlink transmission within a preset time length, a bit value of a position corresponding to the target time domain transmission unit in the bitmap information is a first bit value, and a bit value of a position not corresponding to the target time domain transmission unit in the bitmap information is a second bit value.
The communication device according to claim 14 or 15, wherein the number of time domain transmission units reserved for downlink transmission within a preset time length is M1, the number of the operating frequency points of the target cell is N1, N1 is a positive integer greater than 1 and less than or equal to M1;

and the target time domain transmission units of the N1 working frequency points are not overlapped in time domain.
The communication device according to any one of claims 10 to 16, wherein the number of target time domain transmission units in M2 time domain transmission units that are time-domain consecutive at the same operating frequency point is N2, M2 is an integer greater than 1, and M2 is a preset multiple of N2.
The communication device according to any one of claims 10 to 17, wherein the time domain position of the target time domain transmission unit of the first operating frequency point of the target cell is related to a cell identifier of the target cell.
A communication device, comprising:

the processor is used for the communication equipment to determine a target time domain transmission unit of a working frequency point of a target cell; the working frequency points comprise first working frequency points, a target time domain transmission unit of the first working frequency point is used for downlink public transmission, an adjacent cell adjacent to the target cell is configured with the first working frequency points, and the time domain positions of the target time domain transmission units of the first working frequency points of the target cell and the adjacent cell are different;

and the transceiver is used for the communication equipment to perform downlink transmission through the target time domain transmission unit of the working frequency point of the target cell.
The communications device of claim 19, wherein the operating frequency point further comprises: and the target time domain transmission unit of the second working frequency point is used for downlink user transmission, the adjacent cell adjacent to the target cell is configured with the second working frequency point, and the time domain positions of the target time domain transmission units of the second working frequency points of the target cell and the adjacent cell are different.
The communication device according to claim 19 or 20, wherein the communication device is a network device;

the transceiver is further configured to send indication information to user equipment, where the indication information is used to indicate the target time domain transmission unit of the working frequency point in the target cell.
The communication device according to claim 19 or 20, wherein the processor is specifically configured to receive, by the transceiver, indication information sent by a network device, where the indication information is used to indicate a target time domain transmission unit of the working frequency point in the target cell.
The communication device according to claim 21 or 22, wherein the indication information comprises at least one of: the offset between the target time domain transmission unit and a preset time domain transmission unit, the index of the target time domain transmission unit, the number of time domain transmission units reserved in a preset time length for downlink transmission, and the number of the working frequency points of the target cell.
The communication device according to claim 21 or 22, wherein the indication information is bitmap information, the bitmap information includes a number of time domain transmission units reserved within a preset time length for downlink transmission, a bit value of a position corresponding to the target time domain transmission unit in the bitmap information is a first bit value, and a bit value of a position not corresponding to the target time domain transmission unit in the bitmap information is a second bit value.
The communication device according to claim 23 or 24, wherein the number of time domain transmission units reserved for downlink transmission within a preset time length is M1, the number of the operating frequency points of the target cell is N1, N1 is a positive integer greater than 1 and less than or equal to M1;

and the target time domain transmission units of the N1 working frequency points are not overlapped in time domain.
The communication device according to any of claims 19 to 25, wherein the number of target time domain transmission units in M2 time domain transmission units that are time-domain consecutive at the same operating frequency point is N2, M2 is an integer greater than 1, and M2 is a preset multiple of N2.
The communications device according to any one of claims 19 to 26, wherein the time domain position of the target time domain transmission unit of the first operating frequency point of the target cell is related to a cell identifier of the target cell.
A communications apparatus, comprising: a processor and a memory;

the memory stores a program;

the processor invokes a program stored in the memory to control the communication device to perform the method of any of claims 1-9.
A communication system, comprising: the communication device of any one of claims 10 to 18, or the communication device of any one of claims 19 to 27, or the communication apparatus of claim 28.
A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a computer, carries out the method according to any one of the preceding claims 1-9.