WO2019179323A1

WO2019179323A1 - Method and device for beam indication, method and device for beam selection, base station, and terminal

Info

Publication number: WO2019179323A1
Application number: PCT/CN2019/077627
Authority: WO
Inventors: 左君; 王森; 王爱玲; 韩双锋
Original assignee: 中国移动通信有限公司研究院; 中国移动通信集团有限公司
Priority date: 2018-03-21
Filing date: 2019-03-11
Publication date: 2019-09-26
Also published as: CN110300451B; CN110300451A

Abstract

Provided are a method and device for beam indication, a method and device for beam selection, a base station, and a terminal. The method comprises: transmitting indication information to a target terminal, the indication information indicating a beam indication scheme for the target terminal; and if the indication information indicates a semi-static indication scheme for the target terminal, transmitting, to the target terminal, first information comprising beam information and a valid duration of the beam information.

Description

Beam indicating method and device, beam selecting method and device, base station and terminal

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 20110123482, filed on Jan. 21, s.

Technical field

The present disclosure relates to the field of communications technologies, and in particular, to a beam indicating method and apparatus, a beam selecting method and apparatus, a base station, and a terminal.

Background technique

In the fifth-generation (5G) mobile communication system, the multi-antenna system adopts a digital domain and analog domain hybrid architecture to balance coverage and complexity. When multiple analog beams are configured on the base station and the UE, beam management is required to ensure that the user and the base station use beam pairs with better channel quality to ensure the transmission rate. The downlink beam management process includes the following steps: the base station sends a beam management reference signal, the user measures and reports the beam measurement result, the base station selects the downlink transmission beam, and the user uses the receive beam that matches the base station transmit beam to receive the downlink data. In the current 3GPP discussion, in order for a user to use a receive beam that matches the transmit beam of the base station, the base station may use an implicit or explicit beam indication. The explicit or implicit beam indication mode needs to be notified by the base station and then notified by the higher layer signaling (such as radio resource control RRC signaling). In the implicit beam indication mode, the base station and the user select a beam according to a predetermined criterion, such as using the same beam as the control channel. In the explicit beam indication mode, the base station transmits a Transmission Configuration Indicator (TCI) through the downlink control channel. To the user, the user can know the downlink receiving beam information through the TCI. The specific manner is that the base station configures the TCI information table by using RRC signaling, where the information table has a total of M TCI states, each state is composed of multiple {RS index values + quasi-co-location types}, and the quasi-co-location (QCL) type includes Type A, Type B, Type C, and TypeD, where TypeD represents spatial quasi-co-location. The TCI field occupies 3-bit in the downlink control information and represents an index value of a TCI state. After receiving the downlink control information, the user reads the 3-bit of the TCI index information, such as "101", and learns the quasi-co-location information according to a TCI status in the TCI information table corresponding to "101". The user receives the data information using the receive beam of the RS of the {RS index + TypeD} in the state, that is, the received beam information is obtained by the quasi-co-location information of the TypeD.

At present, in the 3GPP discussion, what kind of beam indication mode (implicit or explicit) is used by the base station needs to notify the user through high-level signaling. Generally, the time required for the high-level signaling from the base station to the user to receive is 100 milliseconds, so it cannot be fast. An implicit or explicit way to dynamically switch beam indications. If the current beam indication mode is an explicit indication, there is information about the received beam in the TCI field of the control channel, but in some scenarios, such as a high-speed mobile (high-speed rail) scenario, the direct path of the channel between the base station and the terminal is compared. Strong, the scattering diameter is weak, and the motion trajectory and speed of the terminal are relatively fixed, and the selection of the beam pair has strong regularity, as shown in Figure 1.

It is assumed in Fig. 1 that the base station can form six analog beams. When the train passes through the coverage area of the base station, it communicates with beams #1, #2, #3, #4, #5, #6 in sequence, and the high-speed railway runs at a speed of 500 km/h. The analog beamwidth is 15 degrees, the station spacing is 1732 meters, and the station gauge is 100m. The communication time between the train and each beam is about several hundred milliseconds, that is, the time interval for beam switching is hundreds of milliseconds. According to the existing beam indication mode, if the implicit beam indication is used, the fast switching of the beam may not be guaranteed by the high layer signaling; if the explicit beam indication mode is used, the TCI field of the control channel of each time slot has Receiving the relevant indication information of the beam, but the matching beam pair of the base station and the terminal may remain unchanged within hundreds of milliseconds in the high-speed rail scenario, that is, the relevant receiving beam information of the TCI domain may be the same within hundreds of milliseconds, resulting in resources. Waste.

Summary of the invention

An object of the present disclosure is to provide a beam indication method and apparatus, a beam selection method and apparatus, a base station, and a terminal, to solve the problem of resource waste caused by the method of performing beam indication based on only high layer signaling or only downlink control information. problem.

In order to achieve the above objective, an embodiment of the present disclosure provides a beam indication method, including:

Sending indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the first information including the beam information and the effective time length of the beam information is transmitted to the target terminal.

The method further includes:

The change information of the beam indication mode is sent to the target terminal by using the high layer signaling, and the change information is used to change the beam indication mode of the target terminal to a high layer signaling indication or a downlink control. Information indication.

The method further includes:

And if the change information changes the beam indication manner of the target terminal to a high layer signaling indication, sending beam information to the target terminal by using high layer signaling;

If the change information changes the beam indication manner of the target terminal to the downlink control information indication, the second information including the beam information is sent to the target terminal.

The method further includes:

After the effective time length of the beam information arrives, the third information including the beam information and the effective time length of the beam information is transmitted to the target terminal.

The beam information is an index value in a preset beam set, or the beam information is an index value of transmission configuration information;

The preset beam set includes multiple receive beams.

The effective time length of the beam information is an index value in a preset effective time length set;

The preset effective time length set includes a plurality of valid time lengths.

The embodiment of the present disclosure further provides a beam selection method, including:

Receiving indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal;

When the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receiving, by the base station, the first information including the beam information and the effective time length of the beam information;

And selecting, according to the beam information in the first information, a receive beam for downlink data within an effective time length of the beam information.

The method further includes:

Receiving, in the effective time length of the beam information, change information of a beam indication manner sent by the base station by using the high layer signaling;

The change information is used to change the beam indication mode of the terminal to a high layer signaling indication or a downlink control information indication.

The method further includes:

And if the change information is used to change the beam indication mode of the terminal to a high layer signaling indication, receive beam information sent by the base station by using the high layer signaling, and select a receive beam according to the beam information for the downlink data after receiving the change information;

If the change information is used to change the beam indication mode of the terminal to the downlink control information indication, receive the second information of the beam information sent by the base station, and after receiving the change information according to the beam information in the second information The downlink data selects the receive beam.

The method further includes:

Receiving beam information transmitted by the base station and third information of an effective time length of the beam information after the effective time length of the beam information arrives;

And selecting, according to beam information in the third information, a receive beam for downlink data within an effective length of time of the beam information.

The preset beam set includes multiple receive beams.

The embodiment of the present disclosure further provides a beam indicating device, including:

a first sending module, configured to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

And a second sending module, configured to: when the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, send the first information including the beam information and the effective time length of the beam information to the target terminal.

The embodiment of the present disclosure further provides a base station, including a processor and a transceiver, where the processor and the transceiver are configured to perform the following process:

The processor controls the transceiver to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the transceiver transmits first information including beam information and an effective time length of the beam information to the target terminal.

Wherein, the transceiver is further configured to:

The preset beam set includes multiple receive beams.

An embodiment of the present disclosure further provides a beam selection apparatus, including:

a first receiving module, configured to receive indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal;

a second receiving module, configured to: when the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receive first information that includes the beam information and the effective time length of the beam information that is sent by the base station;

And a beam selection module, configured to select, according to beam information in the first information, a receive beam for downlink data within an effective time length of the beam information.

The embodiment of the present disclosure further provides a terminal, including a processor and a transceiver, where the transceiver is configured to perform the following process:

The processor is configured to perform the following process:

Wherein, the transceiver is further configured to:

If the change information is used to change the beam indication mode of the terminal to a high-level signaling indication, receive the beam information sent by the base station by using the high-layer signaling; the processor is further configured to: after receiving the change information according to the beam information, The downlink data selects the receive beam;

If the change information is used to change the beam indication mode of the terminal to the downlink control information indication, receive the second information of the beam information sent by the base station; the processor is further configured to: according to the beam in the second information The information selects a receive beam for the downlink data after receiving the change information.

Wherein, the transceiver is further configured to:

The processor is further configured to: select, according to beam information in the third information, a receive beam for downlink data within an effective time length of the beam information.

The preset beam set includes multiple receive beams.

The embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the steps in the beam indicating method as described above; or the program is executed by the processor The steps in the beam selection method as described above are implemented.

The above technical solutions of the present disclosure have at least the following beneficial effects:

In the beam indication method and apparatus, the beam selection method and apparatus, the base station, and the terminal in the embodiment of the present disclosure, the beam indication manner of the terminal is notified by the indication information, and the first information is sent to the terminal when the beam indication mode of the terminal is a semi-static indication. The first information is used to indicate the beam information and the effective time length of the beam information. If the beam indication mode of the terminal does not change during the effective time length of the beam information, the base station does not need to send the downlink control information again. The beam information of the receiving beam avoids the waste of resources; further, if the beam indication mode of the terminal changes during the effective time length of the beam information, the base station can send the change information through the high-level signaling sending terminal, thereby reducing The signaling dynamics implements a rapid change in the beam indication method.

DRAWINGS

1 is a schematic diagram of a beam in a high-speed moving scene in the related art;

FIG. 2 is a flowchart of steps of a beam indication method according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a time slot in a beam indication method and a beam selection method according to an embodiment of the present disclosure;

4 is a flow chart showing the steps of a beam selection method according to an embodiment of the present disclosure;

FIG. 5 is a schematic structural diagram of a beam indicating apparatus according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of a base station according to an embodiment of the present disclosure;

FIG. 7 is a schematic structural diagram of a beam selection apparatus according to an embodiment of the present disclosure;

FIG. 8 is a schematic structural diagram of a terminal according to an embodiment of the present disclosure.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.

As shown in FIG. 2, an embodiment of the present disclosure provides a beam indication method, including:

steps

21 and 22.

Step 21: Send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal.

In this step, the beam indication mode of the target terminal includes three modes, the first mode is: high-level signaling indication; the second mode is: downlink control information DCI indication; and the third mode is: semi-static indication, for example, downlink Control information DCI indication + high layer signaling indication.

Step 22: When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the first information including the beam information and the effective time length of the beam information is sent to the target terminal.

It should be noted that, in the foregoing embodiment of the present disclosure, when the first information for indicating the beam information of the receiving beam and the effective time length of the beam information is sent to the target terminal, the base station may directly carry the first information in the foregoing information. The beam information and the effective time length of the beam information; or the base station may further carry the auxiliary information capable of embossing or containing the beam information and the effective time length of the beam information in the first information, and the terminal receives the assistance of the first information carrying After the information, the beam information of the receiving beam can be obtained indirectly. For example, the base station carries the transmission configuration indication information in the first information, and the transmission configuration indication information includes information required for demodulation by a plurality of users, and the beam information is one of them. Therefore, the terminal obtains the beam configuration information after receiving the transmission configuration information.

The embodiment of the present disclosure adds a new beam indication mode, that is, a semi-static indication mode. Optionally, the semi-static indication mode is specifically configured to indicate that the downlink control information indicates a beam indication manner combined with the high-level signaling indication, and fully utilizes the timeliness of the downlink control information indication and the reliability of the high-level information indication, thereby using fewer letters. Dynamically indicating the beam information of the receive beam and the rapid change of the beam indication mode.

Further, in the foregoing embodiment of the present disclosure, after the step 22, the method further includes:

Optionally, if the base station decides to change the beam indication manner of the target terminal, for example, changing the beam indication manner of the target terminal to a high-level signaling indication, or the beam indication manner of the target terminal, within the effective time length of the beam information. Change to DCI indication for downlink control information. Then, the base station directly sends the change information of the beam indication mode to the target terminal by using the high layer signaling, and the subsequent base station and the terminal obtain the beam information of the receive beam according to the changed beam indication manner.

If the beam indication mode of the target terminal does not need to be changed, that is, the beam indication mode of the target terminal is always a semi-static indication, the base station does not need to use other downlink control information in the effective time length of the beam information. In the beam information indicating the receiving beam, the beam information of the receiving beam is not required to be indicated by the high layer signaling, and the target indication mode of the target terminal is not required to be indicated by the high layer signaling, thereby saving resources.

Optionally, the foregoing high layer signaling may specifically be radio resource control RRC signaling. After the base station determines the current beam indication mode of the terminal as downlink control information DCI+high-level signaling, the base station notifies the target terminal by using RRC signaling. Further, as shown in FIG. 3, the base station transmits beam information of the N bit receiving beam and information of the effective time length of the M bit in the information of the nth slot of the target terminal. If the effective time is k time slots, the information of the n+1th, n+2, ..., n+k-1 time slots of the user has no beam information of the receiving beam, and the target terminal is within the effective time length thereof. Beam selection is performed according to beam information of the receive beam of the nth slot. Where n, k, N, M are positive integers.

Optionally, the beam information of the receiving beam is an index value in a preset beam set, or the beam information of the receiving beam is an index value of transmission configuration information; wherein the preset beam set includes multiple receiving The index of the preset beam set can also be implemented by direct indication or indirect indication, which is not specifically limited herein. The effective time length of the beam information is an index value in a preset effective time length set; wherein the preset effective time length set includes a plurality of valid time lengths.

In the foregoing embodiment of the present disclosure, the base station may pre-define a set A including a plurality of pieces of received beam information and a preset effective time length set B including a plurality of valid time lengths, and notify the terminal by RRC signaling. Correspondingly, the beam information in the information is an index value in the set A, and the effective time length of the beam information is an index value in the set B of the preset effective time length. It should be noted that the base station may update the set A and the preset effective time length set B by using RRC signaling.

Further, after the base station sends the change information of the beam indication mode to the target terminal by using the high layer signaling, the method further includes:

And if the change information changes the beam indication manner of the target terminal to the downlink control information indication, the second information including the beam information is sent to the target terminal.

In short, after the base station changes the beam indication mode of the target terminal through the high-layer signaling, both the base station and the target terminal work according to the changed beam indication mode. The working principle and working process are consistent with the related technologies, and are not described in detail herein.

The method further includes: after the effective time length of the beam information does not need to be changed, and after the effective time length of the beam information arrives, the method further includes:

The third information including the beam information and the effective length of time of the beam information is transmitted to the target terminal.

It should be further noted that the second information and the third information may directly carry the beam information of the receiving beam, or carry the auxiliary information to separately indicate the beam information of the receiving beam, and the specific manner is the same as the first information, and details are not repeated herein. .

As shown in FIG. 3, the base station is used to indicate beam information of the receive beam and the effective time length of the beam information in the information of the n+k time slot. In short, if the beam indication mode of the target terminal does not need to be changed within the effective time length indicated by the downlink control information, the base station transmits the beam information and the valid time again by using the information in the first time slot after the previous effective time length arrives. Length: If the effective time length of each transmission is equal to the effective time length, the periodicity of the base station sends information indicating the beam information of the receiving beam and the effective time length of the beam information to the target terminal.

In summary, in the foregoing embodiment of the present disclosure, the indicator information is used to notify the terminal of the beam indication mode, and when the beam indication mode of the terminal is a semi-static indication, the first information is sent to the terminal, where the first information is used to indicate the receiving beam. The beam information and the effective time length of the beam information, if the beam indication mode of the terminal does not change during the effective time length of the beam information, the base station does not need to transmit the beam information of the receiving beam by using the downlink control information, thereby avoiding The waste of resources; further, if the beam indication mode of the terminal changes during the effective time length of the beam information, the base station may send the change information through the high-level signaling sending terminal, thereby implementing the beam indication method with less signaling dynamics. Rapid change.

As shown in FIG. 4, an embodiment of the present disclosure further provides a beam selection method, including:

Step 41: Receive indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal.

In this step, the beam indication mode of the terminal includes three modes. The first mode is: high-level signaling indication; the second mode is: downlink control information DCI indication; and the third mode is: semi-static indication, such as downlink control. Information DCI indication + high layer signaling indication.

Step 42: When the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receiving, by the base station, first information that includes beam information and an effective time length of the beam information.

Step 43: Select, according to beam information in the first information, a receive beam for downlink data within a valid time length of the beam information.

It should be noted that, in the foregoing embodiment of the present disclosure, when receiving, by the base station, the first information for indicating the beam information of the receiving beam and the effective time length of the beam information, the base station may directly carry the first information. The beam information and the effective time length of the beam information; or the base station may further carry the auxiliary information capable of embossing or containing the beam information and the effective time length of the beam information in the first information, and the terminal receives the assistance of the first information carrying After the information, the beam information of the receiving beam can be obtained indirectly. For example, the base station carries the transmission configuration indication information in the first information, and the transmission configuration indication information includes information required for demodulation by a plurality of users, and the beam information is one of them. Therefore, the terminal obtains the beam configuration information after receiving the transmission configuration information.

The embodiment of the present disclosure adds a new beam indication mode, that is, a semi-static indication mode. Optionally, the semi-static indication manner is specifically a downlink indication information indication and a high-level signaling indication combined beam indication manner, which fully utilizes the timeliness of the downlink control information indication and the reliability of the high-level information indication, thereby using fewer letters. Dynamically indicating the beam information of the receive beam and the rapid change of the beam indication mode.

Further, in the foregoing embodiment of the present disclosure, after the step 43, the method further includes:

Optionally, if the base station determines to change the beam indication mode of the terminal, for example, changing the beam indication mode of the terminal to a high-level signaling indication, or changing the beam indication mode of the terminal to the downlink. Control information DCI indication. Then, the base station directly sends the change information of the beam indication mode to the terminal through the high layer signaling, and the subsequent base station and the terminal obtain the beam information of the receive beam according to the changed beam indication manner.

In the effective time length of the beam information, if the beam indication mode of the terminal does not need to be changed, that is, the beam indication mode of the terminal is always a semi-static indication, the base station does not need to be used for indication in other downlink control information within the effective time length of the beam information. The beam information of the receiving beam does not need to indicate the beam information of the receiving beam through high-level signaling, and the higher-level signaling is not required to indicate the target indication mode of the changing terminal, thereby saving resources.

Optionally, the foregoing high layer signaling may specifically be radio resource control RRC signaling. After the base station determines the current beam indication mode of the terminal as downlink control information DCI+high-level signaling, the base station notifies the terminal through RRC signaling. Further, as shown in FIG. 3, the base station transmits the beam information of the N bit and the effective time length of the M bit in the downlink control information of the nth slot of the terminal. If the effective time is k time slots, the downlink control information of the n+1th, n+2, ..., n+k-1 time slots of the user has no beam information of the receiving beam, and the terminal is in its effective time length. Beam selection is performed within the beam information of the receive beam of the nth time slot. Where n, k, N, M are positive integers.

In the foregoing embodiment of the present disclosure, the base station may pre-define a set A including a plurality of pieces of received beam information and a preset effective time length set B including a plurality of valid time lengths, and notify the terminal by RRC signaling. Correspondingly, the beam information in the downlink control information is an index value in the set A, and the effective time length of the beam information is an index value in the preset effective time length set B. It should be noted that the base station may update the set A and the preset effective time length set B by using RRC signaling.

Further, after the terminal receives the change information of the beam indication mode by using the high layer signaling, the method further includes:

And if the change information is used to change the beam indication mode of the terminal to a high layer signaling indication, receive beam information of a receiving beam sent by the base station by using high layer signaling, and select downlink data after receiving the change information according to the beam information. Receiving beam

In short, after the base station changes the beam indication mode of the terminal through the high-layer signaling, the base station and the terminal work according to the changed beam indication mode. The working principle and working process are consistent with the related technologies, and are not described in detail herein.

Receiving beam information transmitted by the base station and third information of an effective time length of the beam information;

As shown in FIG. 3, the base station is used to indicate beam information of the receive beam and the effective time length of the beam information in the information of the n+k time slot. In short, if the beam indication mode of the terminal does not need to be changed within the effective time length indicated by the downlink control information, the base station retransmits the beam information and the effective time length by using the information in the first time slot after the previous effective time length is reached. If the effective time length of each transmission is equal to the effective time length, the base station periodically transmits information for indicating the beam information of the receiving beam and the effective time length of the beam information to the terminal.

In summary, in the foregoing embodiment of the present disclosure, the indicator information is used to inform the terminal of the beam indication mode, and when the beam indication mode of the terminal is a semi-static indication, the first information is sent to the terminal, where the first information is used to indicate the reception beam. The beam information and the effective time length of the beam information, if the beam indication mode of the terminal does not change within the effective time length of the beam information, the base station does not need to send the beam information through the information, thereby avoiding waste of resources; Further, if the beam indication mode of the terminal changes during the effective time length of the beam information, the base station may send the change information by using the high-level signaling sending terminal, so as to implement the rapid change of the beam indication method with less signaling dynamics.

As shown in FIG. 5, an embodiment of the present disclosure further provides a beam indicating device, including:

The first sending module 51 is configured to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

The second sending module 52 is configured to: when the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, send, to the target terminal, beam information indicating the received beam and an effective time length of the beam information. First information.

Optionally, in the foregoing embodiment of the disclosure, the device further includes:

a third sending module, configured to send, by using the high layer signaling, the change information of the beam indication manner to the target terminal, where the beam information of the target terminal is changed to The high layer signaling indication or the downlink control information indication.

a fourth sending module, configured to: if the change information changes a beam indication manner of the target terminal to a high layer signaling indication, send beam information to the target terminal by using high layer signaling;

And a fifth sending module, configured to: if the change information changes a beam indication manner of the target terminal to a downlink control information indication, send second information including beam information to the target terminal.

And a sixth sending module, configured to send third information including the beam information and the effective time length of the beam information to the target terminal after the effective time length of the beam information arrives.

Optionally, in the foregoing embodiment of the present disclosure, the beam information of the receiving beam is an index value in a preset beam set, or the beam information of the receiving beam is an index value of transmission configuration information;

The preset beam set includes multiple receive beams.

Optionally, in the foregoing embodiment of the present disclosure, the effective time length of the beam information is an index value in a preset effective time length set;

In summary, in the foregoing embodiment of the present disclosure, the indicator information is used to inform the terminal of the beam indication mode, and when the beam indication mode of the terminal is a semi-static indication, the first information is sent to the terminal, where the first information is used to indicate the reception beam. The beam information and the effective time length of the beam information, if the beam indication mode of the terminal does not change within the effective time length of the beam information, the base station does not need to transmit the beam information of the receiving beam by using the downlink control information, thereby avoiding Further, if the beam indication mode of the terminal changes during the effective time length of the beam information, the base station can send the change information through the high-level signaling sending terminal, thereby implementing the beam indication with less signaling dynamics. Rapid changes in the method.

It should be noted that the beam indication device provided by the embodiment of the present disclosure is a beam indication device capable of performing the beam indication method, and all embodiments of the beam indication method are applicable to the beam indication device, and both can achieve the same or similar The benefits.

As shown in FIG. 6, an embodiment of the present disclosure further provides a base station, including a processor 600 and a transceiver 610, where the processor 600 and the transceiver 610 are configured to perform the following process:

The processor 600 controls the transceiver 610 to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the transceiver 610 transmits first information including beam information and an effective time length of the beam information to the target terminal.

Optionally, in the foregoing embodiment of the disclosure, the transceiver 610 is further configured to:

The preset beam set includes multiple receive beams.

It should be noted that, the base station provided by the embodiment of the present disclosure is a base station capable of performing the foregoing beam indication method, and all embodiments of the beam indication method are applicable to the base station, and all of the same or similar beneficial effects can be achieved.

As shown in FIG. 7, an embodiment of the present disclosure further provides a beam selection apparatus, including:

The first receiving module 71 is configured to receive indication information that is sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal.

The second receiving module 72 is configured to: when the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receive the beam information that is sent by the base station to indicate the received beam and the effective time length of the beam information. a message;

The beam selection module 73 is configured to select a receive beam for the downlink data within the effective time length of the beam information according to the beam information in the first information.

a third receiving module, configured to receive, in an effective time length of the beam information, change information of a beam indication manner sent by the base station by using the high layer signaling;

a fourth receiving module, configured to: if the change information is used to change a beam indication manner of the terminal to a high layer signaling indication, receive beam information of a receiving beam that is sent by the base station by using the high layer signaling, and receive the beam information according to the beam information. Selecting a receive beam by selecting downlink data after the information is changed;

a fifth receiving module, configured to: if the change information is used to change a beam indication manner of the terminal to a downlink control information indication, receive second information of beam information sent by the base station, and according to the beam in the second information The information selects a receive beam for the downlink data after receiving the change information.

a sixth receiving module, configured to receive beam information sent by the base station and third information of an effective length of the beam information after the effective time length of the beam information arrives;

The preset beam set includes multiple receive beams.

It should be noted that the beam selection apparatus provided by the foregoing embodiment of the present disclosure is a beam selection apparatus capable of performing the beam selection method, and all embodiments of the beam selection method are applicable to the beam selection apparatus, and both can achieve the same. Or similar benefits.

As shown in FIG. 8, the embodiment of the present disclosure further provides a terminal, including a processor 800, a transceiver 810, and a user interface 820, where the transceiver 810 is configured to perform the following process:

When the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receiving, by the base station, first information for indicating beam information of the receiving beam and an effective time length of the beam information;

The processor 800 is configured to perform the following process:

Optionally, in the foregoing embodiment of the disclosure, the transceiver 810 is further configured to:

And if the change information is used to change the beam indication manner of the terminal to a high layer signaling indication, the receiving the beam information of the receiving beam sent by the base station by using the high layer signaling; the processor is further configured to: receive, according to the beam information, Selecting a receive beam by selecting downlink data after the information is changed;

The processor 800 is further configured to: according to beam information in the third information, select a receive beam for downlink data within an effective time length of the beam information.

The preset beam set includes multiple receive beams.

It should be noted that, the terminal provided by the foregoing embodiment of the present disclosure is a terminal capable of performing the beam selection method described above, and all embodiments of the beam selection method are applicable to the terminal, and all of the same or similar beneficial effects can be achieved.

An embodiment of the present disclosure further provides a computer readable storage medium having stored thereon a computer program, which is executed by a processor to implement various processes in the beam indicating method or the beam selecting method embodiment as described above, and The same technical effect, in order to avoid repetition, will not be described here. The computer readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

Those skilled in the art will appreciate that embodiments of the present application can be provided as a method, system, or computer program product. Thus, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment in combination of software and hardware. Moreover, the application can take the form of a computer program product embodied on one or more computer readable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the present application. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more flows of the flowchart and/or in one or more blocks.

The computer program instructions can also be stored in a computer readable storage medium capable of directing a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable storage medium produce a paper product comprising the instruction device. The instruction means implements the functions specified in one or more blocks of the flow or in a flow or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device to cause a series of operational steps on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programming device. The steps are provided to implement the functions specified in one or more blocks of the flowchart or in a block or blocks of the flowchart.

The above is an alternative embodiment of the present disclosure, and it should be noted that those skilled in the art can make several improvements and refinements without departing from the principles of the present disclosure. Retouching should also be considered as the scope of protection of this disclosure.

Claims

A beam indicating method includes:

Sending indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the first information including the beam information and the effective time length of the beam information is transmitted to the target terminal.
The method of claim 1 further comprising:

The change information of the beam indication mode is sent to the target terminal by using the high layer signaling, and the change information is used to change the beam indication mode of the target terminal to a high layer signaling indication or a downlink control. Information indication.
The method of claim 2 further comprising:

And if the change information changes the beam indication manner of the target terminal to a high layer signaling indication, sending beam information to the target terminal by using high layer signaling;

If the change information changes the beam indication manner of the target terminal to the downlink control information indication, the second information including the beam information is sent to the target terminal.
The method of claim 1 further comprising:

After the effective time length of the beam information arrives, the third information including the beam information and the effective time length of the beam information is transmitted to the target terminal.
The method according to any one of claims 1 to 4, wherein the beam information is an index value in a preset beam set, or the beam information is an index value of transmission configuration information; wherein the pre- Let the beam set contain multiple receive beams.
The method according to claim 1 or 2 or 4, wherein the effective time length of the beam information is an index value in a preset effective time length set;

The preset effective time length set includes a plurality of valid time lengths.
A beam selection method comprising:

Receiving indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal;

When the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receiving, by the base station, the first information including the beam information and the effective time length of the beam information;

And selecting, according to the beam information in the first information, a receive beam for downlink data within an effective time length of the beam information.
The method of claim 7 further comprising:

Receiving, in the effective time length of the beam information, change information of a beam indication manner sent by the base station by using the high layer signaling;

The change information is used to change the beam indication mode of the terminal to a high layer signaling indication or a downlink control information indication.
The method of claim 8 further comprising:

And if the change information is used to change the beam indication mode of the terminal to a high layer signaling indication, receive beam information sent by the base station by using the high layer signaling, and select a receive beam according to the beam information for the downlink data after receiving the change information;

If the change information is used to change the beam indication mode of the terminal to the downlink control information indication, receive the second information of the beam information sent by the base station, and after receiving the change information according to the beam information in the second information The downlink data selects the receive beam.
The method of claim 7 further comprising:

Receiving beam information transmitted by the base station and third information of an effective time length of the beam information after the effective time length of the beam information arrives;

And selecting, according to beam information in the third information, a receive beam for downlink data within an effective length of time of the beam information.
The method according to any one of claims 7 to 10, wherein the beam information is an index value in a preset beam set, or the beam information is an index value of transmission configuration information;

The preset beam set includes multiple receive beams.
The method according to claim 7 or 8 or 9, wherein the effective time length of the beam information is an index value in a preset effective time length set;

The preset effective time length set includes a plurality of valid time lengths.
A beam indicating device comprising:

a first sending module, configured to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

And a second sending module, configured to: when the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, send the first information including the beam information and the effective time length of the beam information to the target terminal.
A base station includes a processor and a transceiver, wherein the processor and the transceiver are configured to perform the following process:

The processor controls the transceiver to send indication information to the target terminal, where the indication information is used to indicate a beam indication manner of the target terminal;

When the indication information indicates that the beam indication mode of the target terminal is a semi-static indication, the transceiver transmits first information including beam information and an effective time length of the beam information to the target terminal.
The base station according to claim 14, wherein said transceiver is further configured to:

The change information of the beam indication mode is sent to the target terminal by using the high layer signaling, and the change information is used to change the beam indication mode of the target terminal to a high layer signaling indication or a downlink control. Information indication.
The base station according to claim 15, wherein said transceiver is further configured to:

And if the change information changes the beam indication manner of the target terminal to a high layer signaling indication, sending beam information to the target terminal by using high layer signaling;

If the change information changes the beam indication manner of the target terminal to the downlink control information indication, the second information including the beam information is sent to the target terminal.
The base station according to claim 14, wherein said transceiver is further configured to:

After the effective time length of the beam information arrives, the third information including the beam information and the effective time length of the beam information is transmitted to the target terminal.
The base station according to any one of claims 14-17, wherein the beam information is an index value in a preset beam set, or the beam information is an index value of transmission configuration information;

The preset beam set includes multiple receive beams.
The base station according to claim 14 or 15 or 17, wherein the effective time length of the beam information is an index value in a preset effective time length set;

The preset effective time length set includes a plurality of valid time lengths.
A beam selection device comprising:

a first receiving module, configured to receive indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal;

a second receiving module, configured to: when the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receive first information that includes the beam information and the effective time length of the beam information that is sent by the base station;

And a beam selection module, configured to select, according to beam information in the first information, a receive beam for downlink data within an effective time length of the beam information.
A terminal includes a processor and a transceiver, wherein the transceiver is configured to perform the following process:

Receiving indication information sent by the base station, where the indication information is used to indicate a beam indication manner of the terminal;

When the indication information indicates that the beam indication mode of the terminal is a semi-static indication, receiving, by the base station, the first information including the beam information and the effective time length of the beam information;

The processor is configured to perform the following process:

And selecting, according to the beam information in the first information, a receive beam for downlink data within an effective time length of the beam information.
The terminal of claim 21, wherein the transceiver is further configured to:

Receiving, in the effective time length of the beam information, change information of a beam indication manner sent by the base station by using the high layer signaling;

The change information is used to change the beam indication mode of the terminal to a high layer signaling indication or a downlink control information indication.
The terminal of claim 22, wherein the transceiver is further configured to:

If the change information is used to change the beam indication mode of the terminal to a high-level signaling indication, receive the beam information sent by the base station by using the high-layer signaling; the processor is further configured to: after receiving the change information according to the beam information, The downlink data selects the receive beam;

If the change information is used to change the beam indication mode of the terminal to the downlink control information indication, receive the second information of the beam information sent by the base station; the processor is further configured to: according to the beam in the second information The information selects a receive beam for the downlink data after receiving the change information.
The terminal of claim 21, wherein the transceiver is further configured to:

Receiving beam information transmitted by the base station and third information of an effective time length of the beam information after the effective time length of the beam information arrives;

The processor is further configured to: select, according to beam information in the third information, a receive beam for downlink data within an effective time length of the beam information.
The terminal according to any one of claims 21 to 24, wherein the beam information is an index value in a preset beam set, or the beam information is an index value of transmission configuration information;

The preset beam set includes multiple receive beams.
The terminal according to claim 21 or 22 or 24, wherein the effective time length of the beam information is an index value in a preset effective time length set;

The preset effective time length set includes a plurality of valid time lengths.
A computer readable storage medium having stored thereon a computer program, wherein the program is executed by a processor to implement the steps in the beam indicating method according to any one of claims 1-6; or

The program is executed by a processor to implement the steps in the beam selection method of any of claims 7-12.