WO2018095227A1 - Scheduling method, terminal, and base station - Google Patents

Abstract

The disclosure provides a scheduling method, terminal, and base station. The scheduling method comprises: defining a time slot adjustment period comprising three or more time slots classified as a fixed downlink time slot, a fixed uplink time slot, and a flexible time slot; configuring the flexible time slot in the time slot adjustment period to be a downlink time slot, an uplink time slot, or an idle slot; and scheduling, on the basis of types of the time slots configured in the time slot adjustment period, a terminal.

Description

Scheduling method, terminal and base station

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 201611046352.6, filed on Nov. 22, 2016, in

Technical field

The present disclosure relates to the field of mobile communications technologies, and in particular, to a scheduling method, a terminal, and a base station.

Background technique

LTE Time Division Duplexing (LTE-TDD) in the 4th Generation Long Term Evolution (4G LTE) and Long Term Evolution Advanced (LTE-Advanced) The frame structure of the system is as shown in FIG. 1 and includes 10 subframes. The uplink and downlink configuration modes of 10 subframes can be flexibly changed, and the time of each radio frame is 10 ms.

Since the uplink and downlink (corresponding to terminal transmission and reception) traffic in the system are different and dynamically change with time, LTE-Advanced supports the feature of dynamically adjusting the slot ratio based on the service ratio, also called dynamic TDD. In the 3GPP system, it is referred to as enhanced Interference and Traffic Adaptation (eIMTA). The eIMTA supports a period of 10ms-160ms. When the ratio of the uplink and downlink timeslots of the system changes, the type of the uplink and downlink configuration of the system is notified to the terminal through the common signaling of the Physical Downlink Control Channel (PDCCH). The terminal periodically detects the time slot reconfiguration signaling based on the packet, and performs corresponding transmission and reception based on the configuration.

The adjustment of the dynamic time slot can improve the system throughput, but also causes the slot ratios of the neighboring cells to be inconsistent. For example, as shown in FIG. 2, if the current cell is received by the uplink base station and the neighboring cell is transmitted by the downlink base station, Inter-cell, for example, the interference from the neighboring cell base station to the local cell base station and the local cell terminal to the neighboring cell terminal (especially the adjacent terminal).

The fifth generation (5 Generation, 5G) mobile communication system is mainly for future mobile broadband services, and supports the Internet of Things and low-latency and high-reliability services. It will be more obvious that dynamic TDD has become an important feature. In order to support larger bandwidth and more frequencies, as well as shorter transmission delays, and support the unified design of FDD and TDD, 5G will introduce a new slot structure and frame structure, making the slot configuration more flexible. For example, the various types of time slots that can be introduced by the 5G in question are: (1) self-contained downlink-based time slots, including downlink control channels, downlink data transmission channels, protection time slots, and uplink control channels; The self-contained uplink-based time slot includes a downlink control channel, an uplink data transmission channel, a protection time slot, and an uplink control channel; (3) a pure downlink time slot, all of which are downlink, and may be a downlink control channel and a downlink data transmission. Channel; (4) pure uplink time slots, all of which are uplinks, and may be an uplink data transmission channel and an uplink control channel.

However, at present, in the 5G complex slot type and frame structure, the method of dynamically adjusting the slot ratio of 4G in the related art is not applicable.

Summary of the invention

The embodiments of the present disclosure provide a scheduling method, a terminal, and a base station to solve the problem that the existing 4G dynamic adjustment slot ratio is not applicable in the 5G complex slot type and frame structure.

In one aspect, an embodiment of the present disclosure provides a scheduling method, including:

Defining a slot adjustment period, the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots;

Setting each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot;

The terminal is scheduled based on the type of the slot in the set slot adjustment period.

On the other hand, an embodiment of the present disclosure further provides a scheduling method, including:

Receiving initial slot configuration information sent by the base station, where the initial slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, where the slot adjustment period includes at least three slots and Said at least three time slots are divided into fixed downlink time slots, fixed uplink time slots and flexible time slots;

Receiving scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a slot in a set slot adjustment period, and each flexible slot in the set slot adjustment period Being set by the base station as a downlink time slot, an uplink time slot or an idle time slot;

Sending, according to the scheduling information, an uplink sensing signal in a corresponding uplink time slot, corresponding to Line time slot detection interference.

In another aspect, an embodiment of the present disclosure further provides a base station, including:

a definition module, configured to define a slot adjustment period, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots;

a setting module, configured to set each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot;

And a scheduling module, configured to schedule the terminal based on a type of the time slot in the set time slot adjustment period.

In a further aspect, the embodiment of the present disclosure further provides a terminal, including:

a first receiving module, configured to receive initial slot configuration information sent by the base station, where the initial slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, where the slot adjustment period includes At least three time slots and the at least three time slots are divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots;

a second receiving module, configured to receive scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a time slot in a set slot adjustment period, and the set time slot adjustment Each flexible time slot in the cycle is set by the base station as a downlink time slot, an uplink time slot, or an idle time slot;

The processing module is configured to send, according to the scheduling information, an uplink sensing signal in a corresponding uplink time slot, and detect interference in a corresponding downlink time slot.

In this way, the scheduling method of the embodiment of the present disclosure defines a slot adjustment period, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and a flexible time slot, where each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot, and the terminal is scheduled based on the type of the time slot in the set time slot adjustment period, even in Under the 5G complex time slot type and frame structure, the time slot ratio can be dynamically adjusted to meet service requirements, and effectively control and manage inter-cell interference, thereby improving system throughput and user experience.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings to be used in the embodiments of the present disclosure will be briefly described below. Obviously, the drawings in the following description are only Some of the disclosed embodiments can be used to obtain other figures from those skilled in the art without departing from the drawings.

FIG. 1 is a diagram showing a frame structure of an LTE-TDD system in the related art.

Fig. 2 is a diagram showing the inter-cell interference caused by the slot ratio mismatch in the related art.

FIG. 3 shows a flow chart of a scheduling method of the first embodiment of the present disclosure.

4 is a diagram showing the arrangement position of an SP on a flexible time slot in the first embodiment of the present disclosure.

Fig. 5 is a diagram showing the slot setting of a slot adjustment period in the first embodiment of the present disclosure.

Fig. 6 is a flow chart showing a scheduling method of the second embodiment of the present disclosure.

FIG. 7 shows a flow chart of a scheduling method of a third embodiment of the present disclosure.

FIG. 8 is a block diagram showing the structure of a base station according to a fourth embodiment of the present disclosure.

FIG. 9 is a second schematic structural diagram of a base station according to a fourth embodiment of the present disclosure.

FIG. 10 is a block diagram showing the structure of a terminal according to a fifth embodiment of the present disclosure.

FIG. 11 is a block diagram showing the structure of a base station according to a sixth embodiment of the present disclosure.

FIG. 12 is a block diagram showing the structure of a terminal according to a seventh embodiment of the present disclosure.

detailed description

The technical solutions in the embodiments of the present disclosure are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present disclosure. It is obvious that the described embodiments are a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present disclosure without departing from the inventive scope are the scope of the disclosure.

First embodiment

As shown in FIG. 3, the first embodiment of the present disclosure provides a scheduling method, which is applied to a base station, and includes the following steps 301 to 303, which are described in detail below.

Step 301: Define a time slot adjustment period.

In the embodiment of the present disclosure, the time slot adjustment period defined by the base station may include at least three time slots, and the at least three time slots are divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots.

Wherein, based on the current multiple subcarrier spacing configuration, the time slot adjustment period can be set in two ways:

Manner 1: The time slot adjustment period has a fixed number of time slots

For example, the subcarrier spacing is 60 kHz, and 10 time slots are defined as one slot adjustment period. The length of one slot is 0.125 ms, and the period corresponding to 10 slots is 1.25 ms.

Manner 2: The time slot adjustment period has a fixed length of time

For example, if the fixed slot adjustment period is 5 ms, then in the case where the subcarrier spacing is 60 KHz, one slot adjustment period includes 40 slots.

In the embodiment of the present disclosure, the time slots in the time slot adjustment period may be divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots.

Generally, the first time slot in the time slot adjustment period is a fixed downlink time slot (default configuration). The fixed downlink time slot includes at least a downlink control channel for carrying scheduling and control of the time slot adjustment period. The fixed downlink time slot may further include a downlink data transmission channel for the base station to send the downlink data signal. The number of the fixed downlink time slots in the time slot adjustment period may be configured based on network planning and optimization experience, and may be two or three, etc., which is not limited by the disclosure.

The last time slot in the time slot adjustment period is a fixed uplink time slot (default configuration). The fixed uplink time slot includes at least an uplink control channel. In the TDD system, the fixed uplink time slot may further include an uplink data transmission channel for transmitting the uplink data signal; in the FDD system, the uplink data transmission channel may be transmitted in another frequency band, so whether the fixed uplink time slot is The transmission of the upstream data signal is optional. The number of fixed uplink time slots in the time slot adjustment period may be configured based on network planning and optimization experience, and may be two or three, etc., which is not limited by the disclosure.

The flexible time slot is a new type of time slot introduced, which can be dynamically set, for example, can be set as an uplink time slot UL, corresponding to the base station receiving data and the terminal transmitting data, and can also be set as the downlink time slot DL. Corresponding to the base station transmitting data and the terminal receiving data, it can also be set to the idle time slot emptied, and the base station and the terminal are not working. The flexible time slot is usually the remaining time slots except the fixed downlink time slot and the fixed uplink time slot in the time slot adjustment period.

In order to adjust the slot ratio better, optionally, when the slot adjustment period is defined, only the first slot in the slot adjustment period may be divided into fixed downlink slots, and the last slot is divided into fixed slots. The uplink time slot, the remaining time slots, that is, the time slots except the first time slot and the last time slot are divided into flexible time slots, that is, the same as the default configuration mode of the time slot adjustment period.

In the embodiment of the present disclosure, since there is a case where the proportion of the adjacent cell slots is inconsistent on the flexible time slot, inter-base station interference or inter-terminal interference is introduced, so in order to avoid inter-base station and inter-terminal Interference, a sensing period (SP) may be introduced on the flexible time slot, and the transmitter sends a sensing signal, and the receiver measures and perceives the interference information based on the sensing signal. Here the transmitter can be a base station or a terminal, and the receiver is also the same.

Specifically, the flexible time slot includes an SP, and the SP is used to sense transmission and reception of signals. The SP can also be used for the transmission and reception of data signals. A typical SP may be an Orthogonal Frequency Division Multiplexing (OFDM) symbol time. The SP may be located at any symbol position of the flexible time slot, but in order to obtain interference information before data reception, to achieve better reception of subsequent data, optionally, the SP may be configured to the first symbol of the flexible time slot. Location, as shown in Figure 4.

When the previous time slot of an uplink time slot of a cell is a downlink time slot, the transition point of the downlink time slot to the uplink time slot usually requires a guard time (GP), and the location of the SP is located. Can be used for GP, as shown in Figure 4.

Step 302: Set each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot.

In the embodiment of the present disclosure, when setting the flexible time slot, the base station may periodically set according to the uplink and downlink traffic of the current cell and/or the time slot configuration information of the neighboring cell, and the specific method is as follows:

First, the base station acquires the uplink and downlink traffic of the local cell and/or the slot configuration information of the neighboring cell according to the preset period; then, the base station according to the acquired uplink and downlink traffic of the local cell and/or the neighboring cell time The slot configuration information sets each flexible slot in the slot adjustment period as a downlink slot, an uplink slot, or an idle slot.

It should be noted that the information acquired by the base station may be the uplink and downlink traffic of the cell, the time slot configuration information of the neighboring cell, or the uplink and downlink traffic of the cell and the time slot configuration of the neighboring cell. information.

The preset period is usually an integer multiple of the time length of the time slot adjustment period, for example, 1 time, 2 times, 5 times, etc., which is not limited by the disclosure. The base station may send the preset period to the local cell terminal through system broadcast information.

The downlink time slot may correspond to multiple (downstream) time slot types, such as a downlink time slot with a downlink control channel, a downlink time slot with no downlink control channel, a self-contained downlink time slot, a pure downlink time slot, and the like. The uplink time slot may correspond to multiple (upstream) time slot types, such as an uplink time slot with an uplink control channel, An uplink time slot without an uplink control channel, a self-contained uplink time slot, a pure uplink time slot, and the like. Specifically, the flexible time slot is set to which downlink time slot or uplink time slot, and the base station can be determined according to service requirements and the like.

In the embodiment of the present disclosure, the manner in which the base station sets the flexible time slot according to the uplink and downlink traffic of the current cell is specifically:

Estimating the number of uplink time slots and the number of downlink time slots required by the current cell according to the uplink and downlink traffic of the current cell;

Each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot according to the time slot adjustment period, the number of uplink time slots, and the number of downlink time slots.

The method for the base station to estimate the number of uplink time slots and the number of downlink time slots according to uplink and downlink traffic is as follows:

Number of uplink time slots = uplink traffic ÷ (uplink spectrum efficiency × number of uplink time slots effective resources);

Number of downlink time slots = downlink traffic ÷ (downlink spectrum efficiency × number of downlink time slots effective resources).

Further, after estimating the number of uplink time slots and the number of downlink time slots, the method for setting the flexible time slots is as follows:

It is assumed that the number of time slots included in one slot adjustment period is N, the number of fixed downlink slots in the slot adjustment period is N1, the number of fixed uplink slots is N2, and the estimated number of uplink slots is Nu1. The number of downlink time slots is Nd1;

If Nu1≤N2 and Nd1≤N1, each flexible time slot in the time slot adjustment period is set as an idle time slot; or

If Nu1>N2 and Nd1≤N1, set min(N-N1-N2, Nu1-N2) time slots in the flexible time slot as an uplink time slot; or

If Nu1≤N2 and Nd1>N1, set min(N-N1-N2, Nd1-N1) time slots in the flexible time slot as a downlink time slot; or

If Nu1>N2 and Nd1>N1, and (Nu1+Nd1)≤N, the (Nd1-N1) time slots in the flexible time slot are set as downlink time slots, and (Nu1-N2) time slots are set as uplink. Time slot; or

If Nu1>N2 and Nd1>N1, and (Nu1+Nd1)>N, the ([N×Nd1/(Nd1+Nu1)]−N1) time slots in the flexible time slot are set as the downlink time slots, ( [N×Nu1/(Nd1+Nu1)]−N2) time slots are set as uplink time slots.

Where min denotes the smaller one between the two values, and [] denotes rounding off.

It should be noted that, since the fixed downlink time slot is usually located at the front end of the time slot adjustment period, that is, before the flexible time slot, when the flexible time slot is selected as the downlink time slot, it can be sequentially sequenced from all the flexible time slots. The selection is made, and since the fixed uplink time slot is usually located at the back end of the time slot adjustment period, that is, after the flexible time slot, when the flexible time slot is selected to be set as the uplink time slot, it can be sequentially reversed from all the flexible time slots. Make choices to meet business needs.

For example, if N is equal to 10, N1 and N2 are equal to 2, then when the flexible time slot is selected as the downlink time slot, the order from the 3rd time slot to the 8th time slot can be selected; the flexible time slot setting is selected. When it is an uplink time slot, it can be selected from the 8th time slot to the 3rd time slot.

The base station sets the flexible time slot according to the time slot configuration information of the neighboring cell, and mainly optimizes and adjusts the time slot adjustment period of the current cell, for example, if the base station detects that it is tightly coupled with the local cell (the mutual interference is strong) The slot configuration of the neighboring cell is inconsistent with the slot configuration of the local cell, and the slot configuration of the low-priority or low-load local cell is adjusted to be adjacent to the high-priority or high-load neighbor according to the cell priority and the load size. The time slot configuration of the cell is consistent.

Step 303: Scheduling the terminal based on the type of the slot in the set slot adjustment period.

In the embodiment of the present disclosure, in order to schedule a terminal, the base station may send scheduling information to the terminal.

The scheduling information is not only used to indicate that the base station (ie, the local cell base station) receives the uplink data signal and/or the uplink sensing signal in the corresponding uplink time slot, and sends the downlink data signal and/or the downlink sensing signal in the corresponding downlink time slot. It can also be used to indicate that the terminal (ie, the cell terminal) sends the uplink data signal and/or the uplink sensing signal in the corresponding uplink time slot, and receives the downlink data signal and/or the downlink sensing signal in the corresponding downlink time slot.

Specifically, as shown in FIG. 5, for the default idle time slot, the terminal and the base station remain silent on the idle time slot, and the base station does not schedule the terminal to send or receive signals, and the terminal does not send or receive signals. In this way, it is beneficial to save electricity.

For a flexible time slot for downlink, the base station scheduling terminal receives the downlink data signal on the flexible time slot. On the SP of the flexible time slot, the base station transmits a downlink sensing signal. The downlink sensing signal may be a common pilot signal indicating the local cell, or may be a downlink demodulation pilot signal of the local cell terminal scheduled to be located in the time slot of the SP, and may be used for detecting the neighboring cell base station that is potentially interfered. Inter-base station interference.

After receiving the scheduling information, the terminal receives the downlink data signal on the flexible time slot, and simultaneously in the spirit The uplink sensing signal sent by the neighboring cell terminal is received on the SP of the active time slot to detect the interference information of the neighboring cell terminal to the local terminal, as shown in FIG. 5 . The interference information includes, but is not limited to, an interference power value, a cell identifier of the interfering terminal, and direction information of the interfering terminal. In this way, after obtaining the interference information, the terminal of the local cell can perform interference deletion, power control, coordinated scheduling, etc., to reduce interference between terminals and ensure better service performance.

In order to avoid interference between the pilot of the base station and the pilot of the potential neighboring cell, the base station transmits the uplink sensing of the downlink sensing signal to the uplink sensing of the neighboring cell terminal on the SP of the flexible time slot. The frequency resource locations of the signals are orthogonal.

Optionally, the base station may also send the downlink data signal and the downlink sensing signal at the SP location, and the downlink sensing signal only occupies part of the time-frequency resource.

For a flexible time slot for uplink, the base station scheduling terminal transmits an uplink data signal on the flexible time slot and receives a downlink data signal at a corresponding time slot position. At the same time, the base station receives the downlink sensing signal of the potential neighboring cell base station on the SP of the flexible time slot to detect the interference information of the neighboring cell base station to the local base station, as shown in FIG. 5 . The interference information includes, but is not limited to, an interference power value, an identifier of the interfering base station, and direction information of the interfering base station. In this way, after obtaining the interference information, the base station of the cell can perform interference deletion, power control, coordinated scheduling, etc., so as to reduce interference between the base stations and ensure better service.

After obtaining the scheduling information, the terminal sends an uplink data signal on the flexible time slot, and sends an uplink sensing signal on the SP of the flexible time slot. The uplink sensing signal may be a common pilot signal indicating the local cell, or may be an uplink demodulation pilot signal of the local cell terminal scheduled to be in the time slot where the sensing period is located, and used for detecting the terminal between the potential neighboring cell terminal. Interference.

In order to avoid interference between the pilot of the cell terminal and the pilot of the potential neighboring cell base station, on the SP of the flexible time slot, the frequency resource location of the uplink cell that sends the uplink sensing signal is optimal, and the neighboring cell base station sends the downlink sensing. The frequency resource locations of the signals are orthogonal. That is to say, on the SP of a flexible time slot, the frequency resource location for transmitting the downlink sensing signal is optimally orthogonal to the frequency resource location for transmitting the uplink sensing signal.

Optionally, the terminal may also send the uplink data signal and the uplink sensing signal at the SP location, and the uplink sensing signal only occupies part of the time-frequency resource.

The scheduling method of the first embodiment of the present disclosure, by defining a slot adjustment period, the slot adjustment The period includes at least three time slots and the at least three time slots are divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots, and each flexible time slot in the time slot adjustment period is set as a downlink time slot. The uplink time slot or the idle time slot is based on the type of the time slot in the set time slot adjustment period, and the dynamic adjustment of the time slot ratio can be achieved even under the 5G complex time slot type and frame structure. Business needs, and effectively control and manage inter-cell interference, improve system throughput and user experience.

Second embodiment

As shown in FIG. 6, the second embodiment of the present disclosure provides a scheduling method, which is applied to a base station, and includes the following steps 401 to 409, which are described in detail below.

Step 401: Define a time slot adjustment period.

In the embodiment of the present disclosure, the time slot adjustment period defined by the base station may include at least three time slots, and the at least three time slots are divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots.

For the description of the step 401, refer to the description of the foregoing step 301, and details are not described herein again.

Step 402: Determine initial time slot configuration information.

In the embodiment of the present disclosure, the initial time slot configuration information is mainly used to indicate the type of the time slot in the time slot adjustment period. When the base station starts up, it can configure an initial time slot configuration information based on network planning and optimization experience. For example, for a TDD system including a slot adjustment period of 10 slots, two fixed downlink slots (first and second slots) and six flexible slots (third to eighth) can be configured. Time slot), and 2 fixed upstream time slots (first and second time slots).

It should be noted that the initial time slot configuration information may be consistent with the default time slot configuration information in the base station system, or may be inconsistent with the default time slot configuration information in the base station system.

Step 403: Send the initial time slot configuration information to the terminal.

In the embodiment of the present disclosure, when transmitting the initial time slot configuration information to the terminal, the base station may send the initial time slot configuration information to the terminal by using the system broadcast information, or may control the RRC signaling by using a dedicated radio resource. The initial time slot configuration information is sent to the terminal, and the common control channel may be configured through the time slot, and the initial time slot configuration information is sent to the terminal.

The time slot configures the common control channel as a downlink common control channel. When the common control channel is configured by using the time slot and the initial time slot configuration information is sent to the terminal, in order to ensure that the terminal can monitor the initial time slot configuration information, the configuration information of the time slot configuration common control channel needs to be passed through the system. The broadcast information is sent to the terminal. Generally, one base station can allow multiple time slots to configure a common control channel to separately transmit different time slot configuration information. A base station may have multiple Transmission Reference Points (TRPs), and the time slots of each TRP are configured differently.

In the embodiment of the present disclosure, the initial time slot configuration information may be indicated by using bit information, such as 2 bits or 3 bits, by indicating the type of each time slot in the time slot adjustment period by using bit information.

The type of the time slot may be any one of the following: a downlink time slot with a downlink control channel, an uplink time slot with an uplink control channel, a self-contained downlink time slot, a self-contained uplink time slot, a pure downlink time slot, and a pure uplink. Gap, fixed downlink time slot, fixed uplink time slot, and flexible time slot; however, the disclosure is not limited thereto.

For example, referring to Table 1 below, the initial slot configuration information can be indicated by 2 bits, and the corresponding slot adjustment period includes 10 slots:

1 2 3 4 5 6 7 8 9 10 01 01 00 00 00 00 00 00 10 10

Table 1

01 indicates a fixed downlink time slot, 00 indicates a flexible time slot, and 10 indicates a fixed uplink time slot. Bit 11 is a reserved type.

Referring again to Table 2 below, the initial slot configuration information can be indicated by 3 bits:

1 2 3 4 5 6 7 8 9 10 001 101 111 000 000 000 000 011 110 010

Table 2

Wherein, 001 indicates a downlink time slot with a downlink control channel, 101 indicates a data downlink time slot without a downlink control channel, 111 indicates a self-contained downlink time slot (ie, a self-contained downlink is a primary time slot), and 000 indicates a flexible time slot. , 011 indicates that the uplink time slot is included (ie, the self-contained uplink is the primary time slot), and 110 indicates the uplink time slot without the uplink control channel. The remaining bits are reserved.

In combination with Tables 1 and 2 above, it can be seen that as the number of bits increases, the number of time slots that can be indicated increases. That is, when there are many types of time slots to be indicated, the number of bits can be appropriately increased.

Step 404: Determine an indication manner of the slot configuration update information.

In the embodiment of the disclosure, the indication manner of the time slot configuration update information may be an explicit indication mode. Or implicit indication. If it is an explicit indication mode, the base station needs to send the corresponding time slot configuration update information to the terminal, and if it is an implicit indication mode, the base station may not send the corresponding time slot configuration update information to the terminal, but directly schedule the terminal.

Thus, in the explicit indication mode, the terminal can know the type of flexible time slot before being scheduled, so the flexible time slot can be used as any type of time slot, which can be used for scheduling or self-containment, etc.; In the mode, the terminal does not know the type of the flexible time slot before being scheduled, and can only know that a flexible time slot is downlink or uplink based on the scheduling. Therefore, the flexible time slot cannot be used for downlink initial scheduling.

Step 405: Send information indicating the indication manner to the terminal by using system broadcast information.

In the embodiment of the present disclosure, the explicit indication mode or the implicit indication mode adopted by the base station may be used to notify the terminal by using the system broadcast information. In this way, after the terminal knows that the indication manner of the slot configuration update information is the explicit indication mode, the terminal can monitor the corresponding channel to obtain the slot configuration update information.

It should be noted that in practical applications, step 402 and step 404 can be performed simultaneously, and the sending processes of step 403 and step 405 are also performed simultaneously.

Step 406: Set each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot.

For details of the description of step 406, refer to the description of step 302 above, and details are not described herein again.

Step 407: Determine time slot configuration update information when the indication mode is an explicit indication mode.

In the embodiment of the present disclosure, the time slot configuration update information is mainly used to indicate the type of the time slot in the set time slot adjustment period.

Step 408: Send the time slot configuration update information to the terminal.

In the embodiment of the present disclosure, when the time slot configuration update information is sent to the terminal, the base station may send the time slot configuration update information to the terminal by using the system broadcast information, or may control the RRC signaling by using a dedicated radio resource. The time slot configuration update information is sent to the terminal, and the common control channel may be configured through the time slot, and the initial time slot configuration information is sent to the terminal.

The time slot configures the common control channel as a downlink common control channel, and is usually located in the first downlink time slot in the time slot adjustment period. The configuration information of the time slot configuration common control channel can be sent to the terminal through the system broadcast information. Generally, one base station can allow multiple time slots to configure a common control channel. Different time slot configuration information is transmitted separately. A base station may have multiple TRPs, and the time slot configuration of each TRP is different (same as the initial configuration).

In the embodiment of the present disclosure, the time slot configuration update information may be indicated by using bit information, such as 2 bits or 3 bits, by indicating the type of each time slot in the time slot adjustment period by using the bit information sequence (with the initial time slot configuration). The information is similar).

For example, referring to Table 3 below, 2 bits can be used to indicate the slot configuration update information, and the corresponding slot adjustment period includes 10 slots:

1 2 3 4 5 6 7 8 9 10 01 01 01 01 00 00 00 10 10 10

table 3

01 indicates a downlink time slot, 00 indicates an idle time slot, and 10 indicates an uplink time slot; the remaining bits are reserved types.

Further, if the time slot configuration update information involves more types of time slots, the number of bits can be appropriately increased for indication, similar to the indication method of the initial time slot configuration information.

In addition, in order to facilitate interference coordination between cells, the base station of the cell may also send the slot configuration update information to the neighboring cell base station through an inter-cell interface, for example, an X2 interface, or receive the slot configuration update information sent by the neighboring cell base station.

Step 409: Send scheduling information to the terminal by using a downlink control channel, based on the type of the slot in the set slot adjustment period and the slot configuration information of the neighboring cell.

In the embodiment of the present disclosure, in order to schedule a terminal, the base station may send scheduling information to the terminal.

The scheduling information may be used to indicate that the base station receives the uplink data signal and/or the uplink sensing signal in the corresponding uplink time slot, and sends the downlink data signal and/or the downlink sensing signal in the corresponding downlink time slot, and may also be used to indicate that the terminal is in the The corresponding uplink time slot transmits an uplink data signal and/or an uplink sensing signal, and receives a downlink data signal and/or a downlink sensing signal in a corresponding downlink time slot.

Specifically, when transmitting scheduling information, the base station can comprehensively consider the slot configuration of the current cell and the slot configuration of the neighboring cell.

For a flexible time slot, if both the local cell base station and the neighboring cell base station configure the flexible time slot as an uplink time slot, the scheduling information may indicate that the local cell terminal does not perform uplink sensing signal transmission on the flexible time slot, and all uses The transmission of the uplink control channel and the uplink data signal; if the base station and the neighbor of the cell The cell base station configures the flexible time slot as a downlink time slot, and the scheduling information may indicate that the terminal of the local cell does not receive the downlink sensing signal on the flexible time slot, and is used for transmitting the downlink control channel and the downlink data signal; The base station configures the flexible time slot as an uplink time slot, and the neighboring cell base station configures the flexible time slot as a downlink time slot, and the scheduling information may indicate that the current cell terminal sends an uplink sensing signal, the uplink sensing signal, on the flexible time slot. The neighboring cell terminal detects the interference information of the terminal of the local cell on the flexible time slot; if the mobile station base station configures the flexible time slot as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information is used. The terminal of the cell may be instructed to receive the uplink sensing signal on the flexible time slot, where the uplink sensing signal is sent by the neighboring cell terminal on the flexible time slot, and is used by the terminal to detect interference information of the neighboring cell terminal.

In addition, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling information indicates that the local cell base station is flexible. The downlink sensing signal is received on the time slot, and the downlink sensing signal is sent by the neighboring cell base station on the flexible time slot, and is used by the local cell base station to detect interference information of the neighboring cell base station; If the flexible time slot is configured as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information indicates that the local cell base station sends a downlink sensing signal, the downlink sensing, on the flexible time slot. The signal is used by the neighboring cell base station to detect interference information of the base station of the local cell on the flexible time slot.

It should be noted that if the base station does not indicate whether the terminal scheduled to the flexible time slot detects or sends the sensing signal in the scheduling information, the terminal needs to detect the sensing signal, that is, the uplink sensing sent by the neighboring cell terminal, in all the downlink time slots. The signal transmits an uplink sensing signal in all uplink time slots.

When adjacent time slots are used for data signal transmission, if the adjacent time slot is a downlink time slot to an uplink time slot, or an uplink time slot to a downlink time slot, the transition point of the adjacent time slot needs to be reserved. Sufficient GP, the size of the GP can be determined by factors such as cell coverage.

In the embodiment of the disclosure, the downlink control channel used to send the scheduling information may be set in a fixed downlink time slot or a flexible time slot. Specifically, in the explicit indication mode, since the terminal knows the type of the flexible time slot before being scheduled, the downlink control channel may be set to a fixed downlink time slot with a downlink control channel, and/or The downlink control channel is set to be a flexible time slot of the downlink time slot. In the implicit indication mode, since the terminal can only know the type of the flexible time slot based on the scheduling, the downlink control channel can only be set to have a downlink. A fixed downlink time slot of the control channel.

In this way, in the explicit indication mode, fewer fixed downlink time slots with downlink control channels can be configured, and more downlink scheduling is placed in subsequent flexible time slots to save energy and reduce delay; In the implicit indication mode, more fixed downlink time slots with downlink control channels need to be configured to ensure the capacity of the downlink control channel.

In the following, the scheduling methods in the explicit indication mode and the implicit indication mode are respectively described in conjunction with the example 1 and the example 2.

Example 1: Explicit indication

Assume that the subcarrier spacing of the TDD system is 15 kHz, the number of symbols in each slot is 7, and the time length of each slot is 0.5 ms. The uplink and downlink slots are configured with 10 slots as the slot adjustment period. Adjacent to two cells.

Step 1: Initial setup

In order to save power, the base station configures the default basic time slot configuration, which is 1 fixed downlink time slot DL (with downlink control channel), 8 flexible time slots FL, and 1 fixed uplink time slot UL (with uplink control channel), as follows Table 4 shows:

Table 4

The base station notifies the uplink and downlink configuration period of the current cell by using the system broadcast message, and the period is 10 time slots, and also sends the configuration information of the common control channel to the terminal, where the configuration information includes, for example, the identifier Slot_Config of the time slot configuration common control channel. RNTI, and indicates that the slot configuration update information is notified in an explicit indication manner.

The base station allocates initial slot configuration information by using bit information, for example, 3 bits, in the downlink common control channel in the first slot of each slot configuration period. For details, see Table 5 below:

position 1 2 3 4 5 6 7 8 9 10 content 001 000 000 000 000 000 000 000 000 010

table 5

Step 2: Periodic update

If the base station configuration update period is 10 time slots, that is, 5 ms, the base station measures every 5 ms. The data packet Buffer length of the downlink scheduling queue to the cell is DL_BO_Length (corresponding to the downlink traffic), and the data packet Buffer length of the uplink scheduling queue is UL_BO_Length (corresponding to the uplink traffic), and based on the expected downlink spectrum efficiency DL_FE of the base station, The uplink spectrum efficiency UL_FE, the uplink time slot effective resource number UL_RE, and the downlink time slot effective resource number DL_RE, and the number of downlink time slots N_DL and the number of uplink time slots N_UL are calculated, as follows:

N_DL=DL_BO_Length÷(DL_FE×DL_RE);

N_UL=UL_BO_Length÷(UL_FE×UL_RE).

Assuming that N_DL=5 and N_UL=3 are calculated, the following information can be configured through the time slot configuration common control channel, as shown in Table 6 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 101 001 101 101 000 000 011 110 010

Table 6

001 indicates a downlink time slot with a downlink control channel, 101 indicates a data downlink time slot without a downlink control channel, 00 indicates an idle time slot, 011 indicates a self-contained downlink primary time slot, and 110 indicates a self-contained upper behavior. The primary time slot, 010 indicates the upstream time slot without the uplink control channel.

Assuming that N_DL=8 and N_UL=4 are calculated, the following information can be configured through the time slot configuration common control channel, as shown in Table 7 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 101 101 101 101 101 101 110 110 010

Table 7

Assuming that N_DL=6 and N_UL=10 are calculated, the following information can be configured through the time slot configuration common control channel, as shown in Table 8 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 101 101 101 110 110 110 110 110 010

Table 8

In order to facilitate interference coordination between cells, the base station of the cell may send the slot configuration update information to the neighboring cell base station by using the inter-cell interface.

The third step: scheduling

The base station configures update information based on the time slot configuration, schedules downlink and uplink terminals, and schedules information The terminal is sent on the downlink common control channel. After receiving the scheduling information, the terminal performs data transmission and reception in the corresponding time slot.

N_DL=4 and N_UL=3 of the neighboring cell received by the X2 interface are taken as an example for the N_DL=4 and N_UL=6 of the current cell, as shown in the following Table 9.

Time slot 1 2 3 4 5 6 7 8 9 10 The community DL DL DL DL UL UL UL UL UL UL Neighboring community DL DL DL DL DL DL FL UL UL UL

Table 9

In the time slots 1 to 4, the configuration of the current cell and the neighboring cell are the same, and both are downlink time slots. The scheduling information indicates that the terminal of the current cell does not perform downlink sensing, and all of them are used for transmitting downlink data signals and downlink common control channels.

In time slots 5 and 6, the base station of the cell is potentially interfered by the neighboring cell base station, and the terminal of the cell potentially interferes with the neighboring cell terminal. Therefore, the scheduling information indicates that the base station of the local cell detects the interference information of the neighboring cell base station, and the terminal of the local cell transmits the uplink sensing signal. . In order to improve the detection accuracy, assuming that the 20-MHz system has a total of 12×100 resource elements (Resources, RE for short), the resource location of the uplink terminal to transmit the uplink sensing signal can be determined as an odd RE. The resource location at which the cell base station transmits the downlink sensing signal is determined to be an even RE, and the odd RE and the even RE are orthogonal.

In the time slot 7, the neighboring cell is an idle time slot, and the terminal is not transmitted or dispatched, and the current cell is an uplink time slot, and the terminal needs to be scheduled. Since there is no interference of the neighboring cell, the scheduling information indicates that the terminal of the current cell does not perform uplink sensing. All used for the transmission of uplink data signals.

In the time slots 8 to 10, the configuration of the current cell and the neighboring cell are the same, and both are uplink time slots. The scheduling information indicates that the terminal of the current cell does not perform uplink sensing, and all of them are used for uplink data signal transmission and uplink common control channel.

Step 4: Interference detection and coordination

For time slots 5 and 6, the base station of the cell detects interference of the neighboring cell base station at the even position of the SP, and measures interference power such as interference power strength, interference channel response information, and incoming wave direction, and performs interference deletion and coordinated scheduling based on the measurement result. Wait.

Example 2: Implicit indication

Assume that the TDD system subcarrier spacing is 15KHz, and the number of symbols per time slot is 7, each The time length of the time slot is 0.5 ms, and the uplink and downlink time slots are configured with 10 time slots as the time slot adjustment period, and the corresponding scene is adjacent to the two cells.

Step 1: Initial setup

In order to save power, the time slots configured by the base station are configured as two fixed downlink time slots DL (with downlink control channel), six flexible time slots FL, and two fixed uplink time slots UL (with uplink control channel), as shown in Table 10 below. Show:

Table 10

The base station notifies the uplink and downlink configuration period of the current cell by using the system broadcast message, and the period is 10 time slots, and indicates that the time slot configuration update information is notified in an implicit indication manner.

The base station allocates initial slot configuration information by using bit information, for example, 3 bits, in the downlink common control channel in the first slot of each slot configuration period. For details, see Table 11 below:

position 1 2 3 4 5 6 7 8 9 10 content 001 001 000 000 000 000 000 000 010 010

Table 11

Step 2: Periodic update

If the base station configuration update period is 10 time slots, that is, 5 ms, the base station measures the data packet Buffer length of the downlink scheduling queue of the cell to be DL_BO_Length (corresponding to the downlink traffic), and the data packet Buffer of the uplink scheduling queue is measured every 5 ms. The length is UL_BO_Length (corresponding to the uplink traffic), and based on the expected downlink spectrum efficiency DL_FE, uplink spectrum efficiency UL_FE, uplink slot effective resource number UL_RE, and downlink slot effective resource number DL_RE, the number of downlink slots N_DL and The number of uplink time slots is N_UL, as follows:

N_DL=DL_BO_Length÷(DL_FE×DL_RE);

N_UL=UL_BO_Length÷(UL_FE×UL_RE).

Assuming that N_DL=5 and N_UL=3 are calculated, the base station configures the following information and does not send the slot configuration update information to the terminal, as shown in Table 12 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 001 101 101 101 000 000 110 010 010

Table 12

Wherein, 001 indicates a downlink time slot with a downlink control channel, 101 indicates a data downlink time slot without a downlink control channel, 00 indicates an idle time slot, 110 indicates an uplink time slot without an uplink control channel, and 010 indicates a self-contained lower time slot. Behavior master time slot.

It is also assumed that N_DL=8 and N_UL=4 are calculated, and the base station configures the following information, and does not send the slot configuration update information to the terminal, as shown in Table 13 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 001 101 101 101 101 101 110 010 010

Table 13

Assuming that N_DL=6 and N_UL=10 are calculated, the base station configures the following information, and does not send the slot configuration update information to the terminal, as shown in Table 14 below:

Time slot 1 2 3 4 5 6 7 8 9 10 Bits 001 001 101 101 110 110 110 110 010 010

Table 14

In order to facilitate interference coordination between cells, the base station of the cell may send the slot configuration update information to the neighboring cell base station by using the inter-cell interface.

The third step: scheduling

The base station configures the update information based on the time slot configuration, schedules the downlink and uplink terminals, and sends the scheduling information to the terminal on the downlink common control channel. After receiving the scheduling information, the terminal performs data transmission and reception in the corresponding time slot, and also knows whether the scheduled time slot is uplink or downlink.

Since the terminal does not know the slot type of the current cell and the slot configuration information of the neighboring cell, the base station needs to indicate in the scheduling information whether the terminal scheduled to the flexible time slot detects (downlink) or transmits the sensing signal (uplink). Otherwise, if the information is not indicated in the scheduling information, all downlink time slots need to be detected, and all uplink time slots need to send uplink sensing signals.

The N_DL=6 and N_UL=3 of the neighboring cell received by the X2 interface are taken as an example for the N_DL=4 and N_UL=6 of the local cell, as shown in Table 15 below.

Time slot 1 2 3 4 5 6 7 8 9 10 The community DL DL DL DL UL UL UL UL UL UL Neighboring community DL DL DL DL DL DL FL UL UL UL

Table 15

In the time slots 1 to 4, the configuration of the current cell and the neighboring cell are the same, and both are downlink time slots. The scheduling information indicates that the terminal of the current cell does not need to perform downlink sensing, and all are used for transmitting the downlink data signal and the downlink common control channel.

In time slots 5 and 6, the base station of the cell is potentially interfered by the neighboring cell base station, and the terminal of the cell potentially interferes with the neighboring cell terminal, and the scheduling information indicates that the terminal of the local cell transmits the uplink sensing signal, so that the neighboring cell terminal detects the interference information. In order to improve the detection accuracy, assuming that the 20 MHz system has a total of 12×100 REs for one symbol, the resource location of the uplink sensing signal transmitted by the terminal of the cell can be determined as an odd RE, and the neighboring cell base station transmits the downlink sensing signal. The position is determined to be in an even RE, and the odd RE and the even RE are orthogonal.

In the time slot 7, the neighboring cell is an idle time slot, and the terminal is not transmitted or scheduled. The current cell is an uplink time slot, and the terminal needs to be scheduled. Since there is no interference of the neighboring cell, the scheduling information indicates that the terminal of the current cell does not need to perform uplink sensing. All used for the transmission of uplink data signals.

In the time slots 8 to 10, the configuration of the current cell and the neighboring cell are the same, and both are uplink time slots. The scheduling information indicates that the terminal of the current cell does not perform uplink sensing, and all of them are used for uplink data signal transmission and uplink common control channel.

Step 4: Interference detection and coordination

For time slots 5 and 6, the base station of the cell detects interference of the neighboring cell base station at the even position of the SP, and measures interference power such as interference power strength, interference channel response information, and incoming wave direction, and performs interference deletion and coordinated scheduling based on the measurement result. Wait.

The scheduling method of the second embodiment of the present disclosure can not only dynamically adjust the slot ratio even under the 5G complex slot type and frame structure, but also meet the service requirements, effectively control and manage inter-cell interference, and improve the system. The throughput and the user experience can also be used to improve the configuration strategy of the base station by means of display indication or implicit indication.

Third embodiment

Referring to FIG. 7, a first embodiment of the present disclosure provides a scheduling method, which is applied to a terminal, and a packet. The following steps 501 to 503 are described in detail below.

Step 501: Receive initial slot configuration information sent by the base station.

In the embodiment of the present disclosure, the initial slot configuration information is used to indicate the type of the slot in the slot adjustment period defined by the base station. The slot adjustment period may include at least three slots, and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots.

For the description of the slot adjustment period, the fixed downlink slot, the fixed uplink slot, and the flexible slot, refer to the description of step 301 in the first embodiment, and details are not described herein.

Step 502: Receive scheduling information sent by the base station.

In the embodiment of the present disclosure, the scheduling information is determined by the base station based on the type of the slot in the set slot adjustment period, and each flexible slot in the set slot adjustment period is set to be downlink by the base station. Gap, upstream time slot or idle time slot.

For the description of the slot adjustment period after the setting, refer to the description of step 302 in the first embodiment, and details are not described herein again.

Specifically, the scheduling information may be used to indicate that the base station receives the uplink data signal and/or the uplink sensing signal in the corresponding uplink time slot, and sends the downlink data signal and/or the downlink sensing signal in the corresponding downlink time slot, and may also be used to indicate the terminal. The uplink data signal and/or the uplink sensing signal are sent in the corresponding uplink time slot, and the downlink data signal and/or the downlink sensing signal are received in the corresponding downlink time slot.

Step 503: Send an uplink sensing signal in a corresponding uplink time slot according to the scheduling information, and detect interference information in a corresponding downlink time slot.

In the embodiment of the present disclosure, for a flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the terminal (ie, the present The cell terminal may send an uplink sensing signal on the flexible time slot, where the uplink sensing signal is used by the neighboring cell terminal to detect the interference information of the terminal on the flexible time slot; if the local cell base station configures the flexible time slot as the downlink time slot And the neighboring cell base station configures the flexible time slot as an uplink time slot, and according to the scheduling information, the terminal may receive an uplink sensing signal on the flexible time slot, where the uplink sensing signal is sent by the neighboring cell terminal on the flexible time slot. The terminal is configured to detect interference information of the neighboring cell terminal, to measure interference power intensity, interference channel response information, and the direction of the incoming wave, and perform interference deletion and coordinated scheduling based on the measurement result.

Specifically, after the step 501 and before the step 502, the scheduling method further includes:

And receiving, by the base station, information indicating an indication manner of the slot configuration update information, where the indication manner is an explicit indication manner or an implicit indication manner;

If the indication mode is an explicit indication mode, receiving time slot configuration update information sent by the base station, where the time slot configuration update information is used to indicate a type of time slot in the set time slot adjustment period, the setting Each flexible time slot in the subsequent time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot or an idle time slot; otherwise, the base station does not send the time slot configuration update information, that is, the terminal also The slot configuration update information will not be received.

In the embodiment of the present disclosure, the step 502 is specifically:

Receiving scheduling information sent by the base station by using a downlink control channel.

When the indication mode is an explicit indication mode, the downlink control channel may be set in a fixed downlink time slot with a downlink control channel, and/or may be set to be flexible in a downlink time slot with a downlink control channel. Time slot.

When the indication mode is an implicit indication mode, the downlink control channel can only be set to a fixed downlink time slot with a downlink control channel.

The scheduling method of the third embodiment of the present disclosure receives the scheduling information sent by the base station by receiving initial slot configuration information sent by the base station, and sends an uplink sensing signal in the corresponding uplink time slot according to the scheduling information, where The downlink time slot detects the interference information, and even under the 5G complex time slot type and frame structure, the terminal can be scheduled, and the inter-cell interference can be effectively controlled and managed.

Fourth embodiment

As shown in FIG. 8, the fourth embodiment of the present disclosure provides a base station, which corresponds to the scheduling method shown in FIG. 3, and can implement the details of the scheduling method in the first embodiment, and achieve the same effect. The base station includes a definition module 61, a setting module 62, and a scheduling module 63, as described in detail below.

The definition module 61 is configured to define a slot adjustment period, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible. Time slot.

The setting module 62 is configured to set each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot.

The scheduling module 63 is configured to schedule the terminal based on the type of the time slot in the set time slot adjustment period.

The setting module 62 includes an obtaining unit and a first setting unit.

The acquiring unit is configured to acquire uplink and downlink traffic of the local cell and/or time slot configuration information of the neighboring cell according to the preset period.

The first setting unit is configured to set each flexible time slot in the time slot adjustment period as a downlink time slot according to the acquired uplink and downlink traffic of the local cell and/or the time slot configuration information of the neighboring cell. , uplink time slot or idle time slot.

Specifically, the preset period is an integer multiple of a length of time that the time slot adjustment period has. The preset period may be sent to the terminal through system broadcast information.

Specifically, the time slot adjustment period has a fixed number of time slots or has a fixed length of time.

Specifically, the first time slot in the time slot adjustment period is a fixed downlink time slot, and the last time slot is a fixed uplink time slot, except for the first time slot and the last time slot. For flexible time slots.

Specifically, the flexible time slot includes a sensing period, and the sensing period is used for sensing transmission and reception of signals. The sensing period is also used for the transmission and reception of data signals. The perceptual period may be located at a first symbol of the flexible time slot.

Specifically, the sensing signal is an uplink sensing signal or a downlink sensing signal. When the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a common pilot signal indicating the local cell. When the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a downlink demodulation pilot signal of the local cell base station scheduled to be in the time slot where the sensing period is located. When the uplink sensing signal is sent on the sensing period, the uplink sensing signal is a common pilot signal indicating the current cell. When the uplink sensing signal is sent on the sensing period, the uplink sensing signal is an uplink demodulation pilot signal scheduled by the local cell terminal in the time slot where the sensing period is located.

Specifically, when the uplink sensing signal and the downlink sensing signal are sent on the sensing period, the frequency resource location for transmitting the uplink sensing signal is orthogonal to the frequency resource location for transmitting the downlink sensing signal.

In the embodiment of the present disclosure, as shown in FIG. 9, the base station further includes a first determining module 64 and a first sending module 65.

The first determining module 64 is configured to determine initial time slot configuration information, where the initial time The slot configuration information is used to indicate the type of the slot in the slot adjustment period.

The first sending module 65 is configured to send the initial time slot configuration information to the terminal.

In the embodiment of the present disclosure, the first sending module 65 is specifically configured to: send the initial time slot configuration information to the terminal by using system broadcast information.

The first sending module 65 is specifically configured to: configure a common control channel by using a time slot, and send the initial time slot configuration information to the terminal. And the configuration information of the time slot configuration common control channel is sent to the terminal by using system broadcast information.

Specifically, the initial time slot configuration information is indicated by using 2 bits or 3 bits.

Specifically, the type of the time slot is any one of the following: a downlink time slot with a downlink control channel, an uplink time slot with an uplink control channel, a self-contained downlink time slot, a self-contained uplink time slot, and a pure downlink time slot. Pure uplink time slots, fixed uplink time slots, fixed downlink time slots, and flexible time slots.

In the embodiment of the present disclosure, as shown in FIG. 9, the base station further includes a second determining module 66 and a second sending module 67.

The second determining module 66 is configured to determine an indication manner of the slot configuration update information.

The second sending module 67 is configured to send information indicating the indication manner to the terminal by using system broadcast information.

Specifically, the indication manner is an explicit indication manner or an implicit indication manner.

In the embodiment of the present disclosure, as shown in FIG. 9, the base station further includes a third determining module 68 and a third sending module 69.

The third determining module 68 is configured to determine slot configuration update information, where the slot configuration update information is used to indicate the type of the slot in the set slot adjustment period.

The third sending module 69 is configured to send the time slot configuration update information to the terminal.

In the embodiment of the present disclosure, the third sending module 69 is specifically configured to: send the time slot configuration update information to the terminal by using system broadcast information.

The third sending module 69 is specifically configured to: configure a common control channel by using a time slot, and send the time slot configuration update information to the terminal.

In the embodiment of the present disclosure, the scheduling module 63 includes a sending unit.

The sending unit is configured to send scheduling information to the terminal by using a downlink control channel based on the type of the slot in the set slot adjustment period and the slot configuration information of the neighboring cell.

The scheduling information is used to indicate that the base station receives an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and sends a downlink data signal and/or a downlink sensing signal in a corresponding downlink time slot. The scheduling information is further used to indicate that the terminal sends an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and receives a downlink data signal and/or a downlink sensing signal in a corresponding downlink time slot.

Specifically, when the indication mode is an explicit indication mode, the downlink control channel is set to a fixed downlink time slot with a downlink control channel, and/or is set to be flexible with a downlink control channel and configured as a downlink time slot. Time slot.

Specifically, when the indication mode is an implicit indication mode, the downlink control channel can only be set to a fixed downlink time slot with a downlink control channel.

In the embodiment of the present disclosure, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling information indicates the terminal. Sending an uplink sensing signal on the flexible time slot, where the uplink sensing signal is used by the neighboring cell terminal to detect the interference information of the terminal on the flexible time slot; And the neighboring cell base station configures the flexible time slot as an uplink time slot, and the scheduling information indicates that the terminal receives an uplink sensing signal on the flexible time slot, where the uplink sensing signal is a neighboring cell terminal in the flexible And the interference information sent by the terminal for detecting the neighboring cell terminal.

Specifically, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling information indicates that the local cell base station is in the Receiving a downlink sensing signal on the flexible time slot, where the downlink sensing signal is sent by the neighboring cell base station on the flexible time slot, and used by the local cell base station to detect interference information of the neighboring cell base station; The base station configures the flexible time slot to be a downlink time slot, and the neighboring cell base station configures the flexible time slot as an uplink time slot, and the scheduling information indicates that the base station of the local cell sends a downlink sensing signal on the flexible time slot, where the downlink The sensing signal is used by the neighboring cell base station to detect interference information of the base station of the local cell on the flexible time slot.

In the embodiment of the present disclosure, the setting module 62 includes an estimating unit and a second setting unit.

The estimating unit is configured to estimate, according to the uplink and downlink traffic of the local cell, the number of uplink time slots and the number of downlink time slots required by the local cell.

The second setting unit is configured to set, according to the time slot adjustment period, the number of uplink time slots, and the number of the downlink time slots, each flexible time slot in the time slot adjustment period as a downlink time slot, Uplink slot or idle slot.

In the embodiment of the present disclosure, if the number of time slots included in the time slot adjustment period is N, the number of fixed downlink time slots in the time slot adjustment period is N1, and the fixed uplink in the time slot adjustment period The number of timeslots is N2, the number of the uplink time slots is Nu1, and the number of the downlink time slots is Nd1, and the second setting unit is specifically configured to:

When the Nu1≤N2 and the Nd1≤N1, each flexible time slot in the time slot adjustment period is set as an idle time slot; or

When the Nu1>N2 and the Nd1≤N1, the min(N-N1-N2, Nu1-N2) time slots in the flexible time slot are set as uplink time slots; or

When the Nu1≤N2 and the Nd1>N1, setting min(N-N1-N2, Nd1-N1) time slots in the flexible time slot as a downlink time slot; or

When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)≤N, the (Nd1-N1) time slots in the flexible time slot are set as downlink time slots, (Nu1-N2) Times slots are set to uplink time slots; or

When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)>N, the ([N×Nd1/(Nd1+Nu1)]−N1) time slots in the flexible time slot are set. For the downlink time slot, ([N×Nu1/(Nd1+Nu1)]−N2) time slots are set as uplink time slots, where [] represents rounding rounding.

The base station according to the fourth embodiment of the present disclosure defines a slot adjustment period, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible. a time slot, where each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot, and the terminal is scheduled based on the type of the time slot in the set time slot adjustment period, even at 5G. Under the complex time slot type and frame structure, the time slot ratio can be dynamically adjusted to meet service requirements, and effectively control and manage inter-cell interference, thereby improving system throughput and user experience.

Fifth embodiment

Referring to FIG. 10, a fifth embodiment of the present disclosure provides a terminal, and the scheduling party shown in FIG. Corresponding to the method, the details of the scheduling method in the third embodiment can be realized, and the same effect can be achieved. The base station includes a first receiving module 71, a second receiving module 72, and a processing module 73, as described in detail below.

The first receiving module 71 is configured to receive initial slot configuration information sent by the base station, where the initial slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, The slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots.

The second receiving module 72 is configured to receive scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a time slot in a set slot adjustment period, where the setting is performed. Each flexible time slot in the time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot, or an idle time slot.

The processing module 73 is configured to send, according to the scheduling information, an uplink sensing signal in a corresponding uplink time slot, and detect interference in a corresponding downlink time slot.

In an embodiment of the disclosure, the terminal further includes a third receiving module and a fourth receiving module.

The third receiving module is configured to receive, by the base station, information indicating an indication manner of the slot configuration update information, where the indication manner is an explicit indication manner or an implicit indication manner.

The fourth receiving module is configured to receive time slot configuration update information sent by the base station when the indication mode is an explicit indication mode, where the time slot configuration update information is used to indicate a set time slot adjustment period The type of the time slot in which the flexible time slot in the set time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot or an idle time slot; wherein the indication mode is implicit In the indication mode, the base station does not send the slot configuration update information.

Specifically, the second receiving module 72 is specifically configured to:

Receiving scheduling information sent by the base station by using a downlink control channel.

Specifically, when the indication mode is an explicit indication mode, the downlink control channel may be set to a fixed downlink time slot with a downlink control channel, and/or set to a downlink time slot with a downlink control channel. Flexible time slot.

Specifically, when the indication mode is an implicit indication mode, the downlink control channel can only be set to a fixed downlink time slot with a downlink control channel.

The terminal of the fifth embodiment of the present disclosure receives the scheduling information sent by the base station by receiving the initial time slot configuration information sent by the base station, and sends the corresponding uplink time slot according to the scheduling information. The line sensing signal detects the interference information in the corresponding downlink time slot, and can realize the scheduling of the terminal and effectively control and manage the interference between the cells even under the 5G complex time slot type and frame structure.

Sixth embodiment

Referring to FIG. 11, a sixth embodiment of the present disclosure provides a base station including a first bus 81, a first transceiver 82, an antenna 83, a first bus interface 84, a first processor 85, and a first memory. 86.

The first processor 85 is configured to read a program in the first memory 86, and perform the following process: defining a time slot adjustment period, where the time slot adjustment period includes at least three time slots and the at least three time slots Divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots; each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot; The type scheduling terminal of the time slot in the adjustment period.

The first transceiver 82 is configured to receive and transmit data under the control of the first processor 85.

Specifically, the first processor 85 is further configured to: control the first transceiver 82 to acquire the uplink and downlink traffic of the local cell and/or the slot configuration information of the neighboring cell according to the preset period, according to the acquired local cell. The uplink and downlink traffic and/or the slot configuration information of the neighboring cell sets each flexible slot in the slot adjustment period as a downlink slot, an uplink slot, or an idle slot.

Specifically, the preset period is an integer multiple of a length of time that the time slot adjustment period has. The preset period may be sent to the terminal through system broadcast information.

Specifically, the time slot adjustment period has a fixed number of time slots or has a fixed length of time.

Specifically, the first time slot in the time slot adjustment period is a fixed downlink time slot, and the last time slot is a fixed uplink time slot, except for the first time slot and the last time slot. For flexible time slots.

Specifically, the flexible time slot includes a sensing period, and the sensing period is used for sensing transmission and reception of signals. The sensing period is also used for the transmission and reception of data signals. The perceptual period may be located at a first symbol of the flexible time slot.

Specifically, the sensing signal is an uplink sensing signal or a downlink sensing signal. When the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a common pilot signal indicating the local cell. When the downlink sensing signal is sent on the sensing period, the downlink sensing signal is scheduled The downlink demodulation pilot signal of the base station of the cell in the time slot where the sensing period is located. When the uplink sensing signal is sent on the sensing period, the uplink sensing signal is a common pilot signal indicating the current cell. When the uplink sensing signal is sent on the sensing period, the uplink sensing signal is an uplink demodulation pilot signal scheduled by the local cell terminal in the time slot where the sensing period is located.

Specifically, when the uplink sensing signal and the downlink sensing signal are sent on the sensing period, the frequency resource location for transmitting the uplink sensing signal is orthogonal to the frequency resource location for transmitting the downlink sensing signal.

Specifically, the first processor 85 is further configured to: determine initial time slot configuration information, where the initial time slot configuration information is used to indicate a type of the time slot in the time slot adjustment period, and control the first transceiver 82 to The initial time slot configuration information is sent to the terminal.

Specifically, the first processor 85 is further configured to: control the first transceiver 82 to send the initial time slot configuration information to the terminal by using system broadcast information; or control the first transceiver 82 to perform common control through time slot configuration. And transmitting, by the channel, the initial time slot configuration information to the terminal.

And the configuration information of the time slot configuration common control channel is sent to the terminal by using system broadcast information.

Specifically, the initial time slot configuration information is indicated by using 2 bits or 3 bits.

Specifically, the type of the time slot is any one of the following: a downlink time slot with a downlink control channel, an uplink time slot with an uplink control channel, a self-contained downlink time slot, a self-contained uplink time slot, and a pure downlink time slot. Pure uplink time slots, fixed uplink time slots, fixed downlink time slots, and flexible time slots.

Specifically, the first processor 85 is further configured to: determine an indication manner of the slot configuration update information, and control the first transceiver 82 to send information indicating the indication manner to the terminal by using system broadcast information.

Specifically, the indication manner is an explicit indication manner or an implicit indication manner.

Specifically, the first processor 85 is further configured to: determine slot configuration update information, where the slot configuration update information is used to indicate a type of the slot in the set slot adjustment period, and control the first transceiver 82 to The time slot configuration update information is sent to the terminal.

Specifically, the first processor 85 is further configured to: control the first transceiver 82 to send the time slot configuration update information to the terminal by using system broadcast information; or configure a common control channel by using a time slot, The slot configuration update information is sent to the terminal.

Specifically, the first processor 85 is further configured to: control the first transceiver 82 to send scheduling information to the downlink control channel based on the type of the slot in the set slot adjustment period and the slot configuration information of the neighboring cell. Said terminal.

The scheduling information is used to indicate that the base station receives an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and sends a downlink data signal and/or a downlink sensing signal in a corresponding downlink time slot. The scheduling information is further used to indicate that the terminal sends an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and receives a downlink data signal and/or a downlink sensing signal in a corresponding downlink time slot.

Specifically, when the indication mode is an explicit indication mode, the downlink control channel is set to a fixed downlink time slot with a downlink control channel, and/or is set to be flexible with a downlink control channel and configured as a downlink time slot. Time slot.

Specifically, when the indication mode is an implicit indication mode, the downlink control channel can only be set to a fixed downlink time slot with a downlink control channel.

Specifically, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling information indicates that the terminal is in the Sending an uplink sensing signal on the flexible time slot, where the uplink sensing signal is used by the neighboring cell terminal to detect the interference information of the terminal on the flexible time slot; if the local cell base station configures the flexible time slot as a downlink time slot and adjacent The cell base station configures the flexible time slot as an uplink time slot, and the scheduling information indicates that the terminal receives an uplink sensing signal on the flexible time slot, where the uplink sensing signal is that the neighboring cell terminal is on the flexible time slot. And sent, used by the terminal to detect interference information of the neighboring cell terminal.

Specifically, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling information indicates that the local cell base station is in the Receiving a downlink sensing signal on the flexible time slot, where the downlink sensing signal is sent by the neighboring cell base station on the flexible time slot, and used by the local cell base station to detect interference information of the neighboring cell base station; The base station configures the flexible time slot to be a downlink time slot, and the neighboring cell base station configures the flexible time slot as an uplink time slot, and the scheduling information indicates that the base station of the local cell sends a downlink sensing signal on the flexible time slot, where the downlink The sensing signal is used by the neighboring cell base station to detect interference information of the base station of the local cell on the flexible time slot.

Specifically, the first processor 85 is further configured to: according to the uplink and downlink traffic of the local cell, estimate the number of uplink time slots and the number of downlink time slots required by the local cell, and adjust the period according to the time slot, The number of uplink time slots and the number of the downlink time slots, each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot.

Specifically, the number of time slots included in the time slot adjustment period is N, the number of fixed downlink time slots in the time slot adjustment period is N1, and the number of fixed uplink time slots in the time slot adjustment period For N2, the number of uplink time slots is Nu1, and the number of downlink time slots is Nd1, and the first processor 85 is further configured to:

When the Nu1≤N2 and the Nd1≤N1, each flexible time slot in the time slot adjustment period is set as an idle time slot; or

When the Nu1>N2 and the Nd1≤N1, the min(N-N1-N2, Nu1-N2) time slots in the flexible time slot are set as uplink time slots; or

When the Nu1≤N2 and the Nd1>N1, setting min(N-N1-N2, Nd1-N1) time slots in the flexible time slot as a downlink time slot; or

When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)≤N, the (Nd1-N1) time slots in the flexible time slot are set as downlink time slots, (Nu1-N2) Times slots are set to uplink time slots; or

When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)>N, the ([N×Nd1/(Nd1+Nu1)]−N1) time slots in the flexible time slot are set. For the downlink time slot, ([N×Nu1/(Nd1+Nu1)]−N2) time slots are set as uplink time slots, where [] represents rounding rounding.

In FIG. 11, a first bus architecture (represented by a first bus 81), which may include any number of interconnected first buses and bridges, the first bus 81 will include the first processor 85 One or more processors and various circuits of the memory represented by the first memory 86 are linked together. The first bus 81 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is well known in the art and, therefore, will not be further described herein. The first bus interface 84 provides an interface between the first bus 81 and the first transceiver 82. The first transceiver 82 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. First treatment The data processed by the processor 85 is transmitted over the wireless medium via the antenna 83. Further, the antenna 83 also receives the data and transmits the data to the first processor 85.

The first processor 85 is responsible for managing the first bus 81 and the usual processing, and can also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. The first memory 86 can be used to store data used by the first processor 85 when performing operations.

Alternatively, the first processor 85 may be a CPU, an ASIC, an FPGA, or a CPLD.

It is to be understood that the first memory 86 in the embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. The non-volatile memory can be a read-only memory (ROM), a programmable read only memory (Programmable ROM (PROM), an erasable programmable read only memory (ErasablePROM, EPROM), and an electrically erasable Program an read only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory can be a Random Access Memory (RAM) that acts as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), Synchronous Connection Dynamic Random Access Memory (SDRAM) and Direct Memory Bus Random Memory Take the memory (DirectRambusRAM, DRRAM). The first memory 86 of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, the first memory 86 stores elements, executable modules or data structures, or a subset thereof, or their extended set: an operating system 861 and an application 862.

The operating system 861 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 862 includes various applications, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. A program implementing the method of the embodiments of the present disclosure may be included in the application 862.

Seventh embodiment

Referring to FIG. 12, a seventh embodiment of the present disclosure provides a terminal including a second bus 91, a second processor 92, a second transceiver 93, a second bus interface 94, a second memory 95, and a user. Interface 96.

The second processor 92 is configured to read the program in the second memory 95, and perform the following process: controlling the second transceiver 93 to receive initial time slot configuration information sent by the base station, where the initial time slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible a time slot, receiving scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a time slot in a set time slot adjustment period, and each of the set time slot adjustment periods The flexible time slot is set by the base station as a downlink time slot, an uplink time slot or an idle time slot, and according to the scheduling information, the uplink sensing signal is sent in the corresponding uplink time slot, and the interference is detected in the corresponding downlink time slot.

The second transceiver 93 is configured to receive and transmit data under the control of the second processor 92.

Specifically, the second processor 92 is further configured to: control the second transceiver 93 to receive the information indicating the indication manner of the slot configuration update information sent by the base station, where the indication manner is an explicit indication manner or an implicit indication manner. And receiving, according to the explicit indication manner, a slot configuration update information sent by the base station, where the slot configuration update information is used to indicate a type of a slot in the set slot adjustment period, Each flexible time slot in the set time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot or an idle time slot; otherwise, the base station does not send the time slot configuration update information.

Specifically, the second processor 92 is further configured to: control the second transceiver 93 to receive scheduling information sent by the base station by using a downlink control channel.

Specifically, the indication mode is an explicit indication mode, where the downlink control channel is set in a fixed downlink time slot with a downlink control channel, and/or is set to a flexible time slot set as a downlink time slot with a downlink control channel. .

Specifically, the indication mode is an implicit indication mode, and the downlink control channel is set in a fixed downlink time slot with a downlink control channel.

In FIG. 12, a bus architecture (represented by a second bus 91), the second bus 91 may include Any number of interconnected buses and bridges, the second bus 91 links together various circuits including one or more processors represented by the general second processor 92 and the memory represented by the second memory 95. The second bus 91 can also link various other circuits, such as peripherals, voltage regulators, and power management circuits, as is known in the art, and therefore, will not be further described herein. The second bus interface 94 provides an interface between the second bus 91 and the second transceiver 93. The second transceiver 93 can be an element or a plurality of elements, such as a plurality of receivers and transmitters, providing means for communicating with various other devices on a transmission medium. For example, the second transceiver 93 receives external data from other devices. The second transceiver 93 is configured to transmit the data processed by the second processor 92 to other devices. Depending on the nature of the computing system, a user interface 96 can also be provided, such as a keypad, display, speaker, microphone, joystick.

The second processor 92 is responsible for managing the second bus 91 and the usual processing, running the general purpose operating system as described above. The second memory 95 can be used to store data used by the second processor 92 when performing operations.

Optionally, the second processor 92 can be a CPU, an ASIC, an FPGA, or a CPLD.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

The above-mentioned serial numbers of the embodiments of the present disclosure are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former is better. Implementation. Based on such understanding, portions of the technical solutions of the present disclosure that contribute substantially or to the prior art may be embodied in the form of a software product stored in a storage medium (eg, ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present disclosure.

The above description is only a specific embodiment of the present disclosure, but the scope of protection of the present disclosure is not limited. It is to be understood that those skilled in the art can devise changes or substitutions within the scope of the present disclosure. Therefore, the scope of protection of the disclosure should be determined by the scope of the claims.

Claims (82)

A scheduling method comprising: Defining a slot adjustment period, the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots; Setting each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot; The terminal is scheduled based on the type of the slot in the set slot adjustment period. The method according to claim 1, wherein the step of setting each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot or an idle time slot comprises: Obtaining uplink and downlink traffic of the cell and/or time slot configuration information of the neighboring cell according to a preset period; Each flexible time slot in the time slot adjustment period is set as a downlink time slot, an uplink time slot, or an idle time slot according to the obtained uplink and downlink traffic of the local cell and/or the time slot configuration information of the neighboring cell. The method of claim 1 wherein said time slot adjustment period has a fixed number of time slots or has a fixed length of time. The method according to claim 1, wherein the first time slot in the time slot adjustment period is a fixed downlink time slot, and the last time slot is a fixed uplink time slot, except for the first time slot and finally A time slot other than one time slot is a flexible time slot. The method of claim 1 wherein the flexible time slot comprises a perceptual period for sensing transmission and reception of signals. The method of claim 5 wherein said perceptual period is located at a first symbol of said flexible time slot. The method of claim 5 wherein said perceptual period is further for transmitting and receiving data signals. The method according to claim 5, wherein the sensing signal is an uplink sensing signal or a downlink sensing signal. The method according to claim 8, wherein when the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a common pilot signal indicating the local cell. The method according to claim 8, wherein when the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a downlink demodulation guide of the local cell terminal scheduled to be in the time slot where the sensing period is located. Frequency signal. The method according to claim 8, wherein when the uplink sensing signal is sent on the sensing period, the uplink sensing signal is a common pilot signal indicating the local cell. The method according to claim 8, wherein when the uplink sensing signal is sent on the sensing period, the uplink sensing signal is an uplink demodulation guide of the local cell terminal scheduled to be in the time slot where the sensing period is located. Frequency signal. The method according to claim 8, wherein when the uplink sensing signal and the downlink sensing signal are sent on the sensing period, the frequency resource location for transmitting the uplink sensing signal and the frequency resource location for transmitting the downlink sensing signal are positive cross. The method according to claim 1, wherein after the step of defining a time slot adjustment period, the flexible time slots in the time slot adjustment period are set as downlink time slots, uplink time slots or idle time slots. Before the steps, it also includes: Determining initial slot configuration information, where the initial slot configuration information is used to indicate a type of a slot in the slot adjustment period; Transmitting the initial time slot configuration information to the terminal. The method of claim 14, wherein the step of transmitting the initial time slot configuration information to the terminal comprises: The initial time slot configuration information is transmitted to the terminal by system broadcast information. The method of claim 14, wherein the step of transmitting the initial time slot configuration information to the terminal comprises: The initial slot configuration information is sent to the terminal by configuring a common control channel through time slots. The method according to claim 16, wherein the configuration information of the time slot configuration common control channel is transmitted to the terminal through system broadcast information. The method of claim 14, wherein the initial time slot configuration information is indicated using 2 bits or 3 bits. The method according to any one of claims 14 to 18, wherein the type of the time slot is any one of the following: a downlink time slot with a downlink control channel, and an uplink time with an uplink control channel The slot includes a downlink time slot, a self-contained uplink time slot, a pure downlink time slot, a pure uplink time slot, a fixed uplink time slot, a fixed downlink time slot, and a flexible time slot. The method according to claim 1, wherein after the step of defining a time slot adjustment period, the flexible time slots in the time slot adjustment period are set as downlink time slots, uplink time slots or idle time slots. Before the steps, it also includes: Determining the indication manner of the slot configuration update information; Information characterizing the indication mode is transmitted to the terminal through system broadcast information. The method according to claim 20, wherein the indication manner is an explicit indication manner or an implicit indication manner. The method according to claim 21, wherein the indication mode is an explicit indication mode, and the flexible time slots in the time slot adjustment period are set as downlink time slots, uplink time slots or idle time slots. After the step of the step of scheduling the terminal based on the type of the time slot in the set time slot adjustment period, the method further includes: Determining time slot configuration update information, where the time slot configuration update information is used to indicate a type of time slot in the set time slot adjustment period; Transmitting the time slot configuration update information to the terminal. The method of claim 22, wherein the step of transmitting the time slot configuration update information to the terminal comprises: The slot configuration update information is sent to the terminal by system broadcast information. The method of claim 22, wherein the step of transmitting the time slot configuration update information to the terminal comprises: The time slot configuration update information is sent to the terminal by configuring a common control channel through time slots. The method according to claim 21, wherein the step of scheduling the terminal based on the type of the time slot in the set time slot adjustment period comprises: The scheduling information is sent to the terminal through the downlink control channel based on the type of the slot in the set slot adjustment period and the slot configuration information of the neighboring cell. The method according to claim 25, wherein the scheduling information is used to indicate that the base station of the local cell receives the uplink data signal and/or the uplink sensing signal in the corresponding uplink time slot, and transmits the downlink data signal and/or in the corresponding downlink time slot. Or downlink sensing signal. The method according to claim 25, wherein the scheduling information is used to indicate that the terminal sends an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and receives a downlink data signal and/or in a corresponding downlink time slot. Or downlink sensing signal. The method according to claim 25, wherein the indication mode is an explicit indication mode, the downlink control channel is set in a fixed downlink time slot with a downlink control channel, and/or is set on a downlink control channel. A flexible time slot for the downlink time slot. The method according to claim 25, wherein the indication mode is an implicit indication mode, and the downlink control channel is set in a fixed downlink time slot having a downlink control channel. The method according to claim 25, wherein, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling The information indicates that the terminal sends an uplink sensing signal on the flexible time slot, where the uplink sensing signal is used by a neighboring cell terminal to detect interference information of the terminal on the flexible time slot; If the base station configures the flexible time slot as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information indicates that the terminal receives an uplink sensing signal on the flexible time slot. The uplink sensing signal is sent by the neighboring cell terminal on the flexible time slot, and is used by the terminal to detect interference information of the neighboring cell terminal. The method according to claim 25, wherein, for the same flexible time slot, if the base station configures the flexible time slot as an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling The information indicates that the base station of the local cell receives the downlink sensing signal on the flexible time slot, where the downlink sensing signal is sent by the neighboring cell base station on the flexible time slot, and is used by the local cell base station to detect the neighboring cell. Interference information of the base station; If the base station configures the flexible time slot as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information indicates that the local cell base station sends a downlink sensing signal on the flexible time slot. The downlink sensing signal is used by the neighboring cell base station to detect interference information of the base station of the local cell on the flexible time slot. The method of claim 2, wherein the preset period is an integer multiple of a length of time of the slot adjustment period. The method of claim 2, wherein the preset period is transmitted to the terminal by system broadcast information. The method according to claim 2, wherein the flexible time slot in the time slot adjustment period is set according to the acquired uplink and downlink traffic of the own cell and/or time slot configuration information of the neighboring cell. The steps of the downlink time slot, the uplink time slot, or the idle time slot include: Estimating the number of uplink time slots and the number of downlink time slots required by the current cell according to the uplink and downlink traffic of the local cell; And setting, according to the time slot adjustment period, the number of uplink time slots, and the number of the downlink time slots, each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot. The method according to claim 34, wherein the number of time slots included in the time slot adjustment period is N, and the number of fixed downlink time slots in the time slot adjustment period is N1, the time slot adjustment period The number of the fixed uplink time slots is N2, the number of the uplink time slots is Nu1, and the number of the downlink time slots is Nd1, and the number of the time slots is adjusted according to the time slot, the number of the uplink time slots, and the downlink time. The number of slots, the step of setting each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot, including: If the Nu1≤N2 and the Nd1≤N1, setting each flexible time slot in the time slot adjustment period as an idle time slot; or If the Nu1>N2 and the Nd1≤N1, set min(N-N1-N2, Nu1-N2) time slots in the flexible time slot as an uplink time slot; or If the Nu1≤N2 and the Nd1>N1, setting min(N-N1-N2, Nd1-N1) time slots in the flexible time slot as a downlink time slot; or If the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)≤N, the (Nd1-N1) time slots in the flexible time slot are set as downlink time slots, (Nu1-N2) Times slots are set to uplink time slots; or If the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)>N, the ([N×Nd1/(Nd1+Nu1)]−N1) time slots in the flexible time slot are set. For the downlink time slot, ([N×Nu1/(Nd1+Nu1)]−N2) time slots are set as uplink time slots, where [] represents rounding rounding. A base station comprising: a definition module, configured to define a slot adjustment period, where the slot adjustment period includes at least three slots and the at least three slots are divided into fixed downlink slots, fixed uplink slots, and flexible slots; a setting module, configured to set each flexible time slot in the time slot adjustment period as a downlink time slot, an uplink time slot, or an idle time slot; And a scheduling module, configured to schedule the terminal based on a type of the time slot in the set time slot adjustment period. The base station according to claim 36, wherein said setting module comprises: An acquiring unit, configured to acquire uplink and downlink traffic of the local cell and/or time slot configuration information of the neighboring cell according to the preset period; a first setting unit, configured to set each flexible time slot in the time slot adjustment period as a downlink time slot and an uplink according to the acquired uplink and downlink traffic of the local cell and/or the time slot configuration information of the neighboring cell. Time slot or idle time slot. The base station according to claim 36, wherein said time slot adjustment period has a fixed number of time slots or has a fixed length of time. The base station according to claim 36, wherein the first time slot in the time slot adjustment period is a fixed downlink time slot, and the last time slot is a fixed uplink time slot, except for the first time slot and finally A time slot other than one time slot is a flexible time slot. The base station according to claim 36, wherein said flexible time slot comprises a perceptual period for sensing transmission and reception of signals. The base station of claim 40 wherein said perceptual period is located at a first symbol of said flexible time slot. The base station according to claim 40, wherein said sensing period is further used for transmitting and receiving data signals. The base station according to claim 40, wherein the sensing signal is an uplink sensing signal or a downlink sensing signal. The base station according to claim 43, wherein, when the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a common pilot signal indicating the local cell. The base station according to claim 43, wherein, when the downlink sensing signal is sent on the sensing period, the downlink sensing signal is a downlink demodulation guide of the local cell terminal scheduled to be in the time slot where the sensing period is located. Frequency signal. The base station according to claim 43, wherein, when the uplink sensing signal is sent on the sensing period, the uplink sensing signal is a common pilot signal indicating the current cell. The base station according to claim 43, wherein, when the uplink sensing signal is sent on the sensing period, the uplink sensing signal is an uplink demodulation guide of the local cell terminal scheduled to be in the time slot where the sensing period is located. Frequency signal. The base station according to claim 43, wherein, when the uplink sensing signal and the downlink sensing signal are sent on the sensing period, the frequency resource location for transmitting the uplink sensing signal and the frequency resource location for transmitting the downlink sensing signal are positive cross. The base station according to claim 36, further comprising: a first determining module, configured to determine initial slot configuration information, where the initial slot configuration information is used to indicate a type of a slot in the slot adjustment period; And a first sending module, configured to send the initial time slot configuration information to the terminal. The base station according to claim 49, wherein the first sending module is specifically configured to: The initial time slot configuration information is transmitted to the terminal by system broadcast information. The base station according to claim 49, wherein the first sending module is specifically configured to: The initial slot configuration information is sent to the terminal by configuring a common control channel through time slots. The base station according to claim 51, wherein the configuration information of the time slot configuration common control channel is transmitted to the terminal through system broadcast information. The base station according to claim 36, wherein said initial slot configuration information is indicated by 2 bits or 3 bits. The base station according to any one of claims 36 to 53, wherein the type of the time slot is any one of the following: a downlink time slot with a downlink control channel, an uplink time slot with an uplink control channel, and a self-contained downlink. Time slot, self-contained uplink time slot, pure downlink time slot, pure uplink time slot, fixed uplink time slot, fixed downlink time slot, and flexible time slot. The base station according to claim 36, further comprising: a second determining module, configured to determine an indication manner of the slot configuration update information; And a second sending module, configured to send information indicating the indication manner to the terminal by using system broadcast information. The base station according to claim 55, wherein the indication mode is an explicit indication mode or an implicit indication mode. The base station according to claim 56, wherein the indication manner is an explicit indication manner, Also includes: a third determining module, configured to determine time slot configuration update information, where the time slot configuration update information is used to indicate a type of a time slot in the set time slot adjustment period; And a third sending module, configured to send the time slot configuration update information to the terminal. The base station according to claim 57, wherein the third sending module is specifically configured to: The slot configuration update information is sent to the terminal by system broadcast information. The base station according to claim 57, wherein the third sending module is specifically configured to: The time slot configuration update information is sent to the terminal by configuring a common control channel through time slots. The base station of claim 56, wherein the scheduling module comprises: And a sending unit, configured to send scheduling information to the terminal by using a downlink control channel according to the type of the slot in the set slot adjustment period and the slot configuration information of the neighboring cell. The base station according to claim 60, wherein the scheduling information is used to indicate that the base station receives an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and transmits a downlink data signal and/or in a corresponding downlink time slot. Or downlink sensing signal. The base station according to claim 60, wherein the scheduling information is used to indicate that the terminal sends an uplink data signal and/or an uplink sensing signal in a corresponding uplink time slot, and receives a downlink data signal and/or in a corresponding downlink time slot. Or downlink sensing signal. The base station according to claim 60, wherein the indication mode is an explicit indication mode, the downlink control channel is set in a fixed downlink time slot with a downlink control channel, and/or is set on a downlink control channel. A flexible time slot for the downlink time slot. The base station according to claim 60, wherein the indication mode is an implicit indication mode, and the downlink control channel is set in a fixed downlink time slot having a downlink control channel. The base station according to claim 60, wherein, for the same flexible time slot, if the base station configures the flexible time slot to be an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling The information indicates that the terminal sends an uplink sensing signal on the flexible time slot, where the uplink sensing signal is used by a neighboring cell terminal to detect interference information of the terminal on the flexible time slot; If the base station configures the flexible time slot as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information indicates that the terminal receives an uplink sensing signal on the flexible time slot. The uplink sensing signal is sent by the neighboring cell terminal on the flexible time slot, and is used for The terminal detects interference information of the neighboring cell terminal. The base station according to claim 60, wherein, for the same flexible time slot, if the local cell base station configures the flexible time slot to be an uplink time slot and the neighboring cell base station configures the flexible time slot as a downlink time slot, the scheduling The information indicates that the base station of the local cell receives the downlink sensing signal on the flexible time slot, where the downlink sensing signal is sent by the neighboring cell base station on the flexible time slot, and is used by the local cell base station to detect the neighboring cell. Interference information of the base station; If the base station configures the flexible time slot as a downlink time slot and the neighboring cell base station configures the flexible time slot as an uplink time slot, the scheduling information indicates that the local cell base station sends a downlink sensing signal on the flexible time slot. The downlink sensing signal is used by the neighboring cell base station to detect interference information of the base station of the local cell on the flexible time slot. The base station according to claim 37, wherein said preset period is an integer multiple of a length of time of said slot adjustment period. The base station according to claim 37, wherein said preset period is transmitted to said terminal through system broadcast information. The base station according to claim 37, wherein said setting module comprises: An estimating unit, configured to estimate, according to the uplink and downlink traffic of the local cell, the number of uplink time slots and the number of downlink time slots required by the local cell; a second setting unit, configured to set each flexible time slot in the time slot adjustment period as a downlink time slot and an uplink time according to the time slot adjustment period, the number of the uplink time slots, and the number of the downlink time slots Gap or idle time slot. The base station according to claim 69, wherein the number of time slots included in the time slot adjustment period is N, and the number of fixed downlink time slots in the time slot adjustment period is N1, the time slot adjustment period The number of the fixed uplink time slots is N2, the number of the uplink time slots is Nu1, and the number of the downlink time slots is Nd1, and the second setting unit is specifically configured to: When the Nu1≤N2 and the Nd1≤N1, each flexible time slot in the time slot adjustment period is set as an idle time slot; or When the Nu1>N2 and the Nd1≤N1, the min(N-N1-N2, Nu1-N2) time slots in the flexible time slot are set as uplink time slots; or When the Nu1≤N2 and the Nd1>N1, the min(N-N1) in the flexible time slot is -N2, Nd1-N1) time slots are set as downlink time slots; or When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)≤N, the (Nd1-N1) time slots in the flexible time slot are set as downlink time slots, (Nu1-N2) Times slots are set to uplink time slots; or When the Nu1>N2 and the Nd1>N1, and (Nu1+Nd1)>N, the ([N×Nd1/(Nd1+Nu1)]−N1) time slots in the flexible time slot are set. For the downlink time slot, ([N×Nu1/(Nd1+Nu1)]−N2) time slots are set as uplink time slots, where [] represents rounding rounding. A scheduling method comprising: Receiving initial slot configuration information sent by the base station, where the initial slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, where the slot adjustment period includes at least three slots and Said at least three time slots are divided into fixed downlink time slots, fixed uplink time slots and flexible time slots; Receiving scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a slot in a set slot adjustment period, and each flexible slot in the set slot adjustment period Being set by the base station as a downlink time slot, an uplink time slot or an idle time slot; And transmitting, according to the scheduling information, an uplink sensing signal in a corresponding uplink time slot, and detecting interference in a corresponding downlink time slot. The method of claim 71, wherein the step of receiving the initial slot configuration information sent by the base station, before the step of receiving the scheduling information sent by the base station, further includes: And receiving, by the base station, information indicating an indication manner of the slot configuration update information, where the indication manner is an explicit indication manner or an implicit indication manner; If the indication mode is an explicit indication mode, receiving time slot configuration update information sent by the base station, where the time slot configuration update information is used to indicate a type of time slot in the set time slot adjustment period, the setting Each flexible time slot in the subsequent time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot or an idle time slot; otherwise, the base station does not send the time slot configuration update information. The method of claim 72, wherein the receiving the scheduling information sent by the base station comprises: Receiving scheduling information sent by the base station by using a downlink control channel. The method according to claim 73, wherein the indication mode is an explicit indication mode, the downlink control channel is set in a fixed downlink time slot with a downlink control channel, and/or is set in a downlink control channel. A flexible time slot for the downlink time slot. The method according to claim 73, wherein the indication mode is an implicit indication mode, and the downlink control channel is set in a fixed downlink time slot having a downlink control channel. A terminal comprising: a first receiving module, configured to receive initial slot configuration information sent by the base station, where the initial slot configuration information is used to indicate a type of a slot in a slot adjustment period defined by the base station, where the slot adjustment period includes At least three time slots and the at least three time slots are divided into fixed downlink time slots, fixed uplink time slots, and flexible time slots; a second receiving module, configured to receive scheduling information sent by the base station, where the scheduling information is determined by the base station based on a type of a time slot in a set slot adjustment period, and the set time slot adjustment Each flexible time slot in the cycle is set by the base station as a downlink time slot, an uplink time slot, or an idle time slot; The processing module is configured to send, according to the scheduling information, an uplink sensing signal in a corresponding uplink time slot, and detect interference in a corresponding downlink time slot. The terminal of claim 76, further comprising: a third receiving module, configured to receive, by the base station, information indicating an indication manner of the slot configuration update information, where the indication manner is an explicit indication manner or an implicit indication manner; a fourth receiving module, configured to receive time slot configuration update information sent by the base station when the indication mode is an explicit indication mode, where the time slot configuration update information is used to indicate a set time slot adjustment period The type of the time slot, the flexible time slot in the set time slot adjustment period is set by the base station as a downlink time slot, an uplink time slot or an idle time slot; wherein the indication mode is an implicit indication mode The base station does not send the slot configuration update information. The terminal according to claim 76, wherein the second receiving module is specifically configured to: Receiving scheduling information sent by the base station by using a downlink control channel. The terminal according to claim 78, wherein the indication mode is an explicit indication mode, and the downlink control channel is set in a fixed downlink time slot with a downlink control channel, and/or is disposed on the device. A flexible time slot with a downlink control channel set as a downlink time slot. The terminal according to claim 78, wherein the indication mode is an implicit indication mode, and the downlink control channel is set in a fixed downlink time slot having a downlink control channel. A base station comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement any one of claims 1 to 35 The steps of the scheduling method described in the item. A terminal comprising: a memory, a processor, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement any one of claims 71 to 75 The steps of the scheduling method described in the item.

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