CN109152005B

CN109152005B - Uplink beam indication method, UE, base station and storage medium

Info

Publication number: CN109152005B
Application number: CN201710453983.8A
Authority: CN
Inventors: 塔玛拉卡·拉盖施; 高秋彬; 陈润华; 李辉; 苏昕; 黄秋萍
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2017-06-15
Filing date: 2017-06-15
Publication date: 2021-01-22
Anticipated expiration: 2037-06-15
Also published as: CN109152005A

Abstract

The invention provides an uplink beam indicating method, UE, a base station and a storage medium, wherein the method comprises the following steps: a user terminal (UE) receives an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying the Nth sending SRS of the UE, wherein N is an integer greater than or equal to 1; and the UE determines that the SRS corresponding to the SRS resource index is a target SRS when the SRS is transmitted for the Nth time, and determines that an uplink beam used for transmitting the target SRS is a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE. In this way, the UE can determine an uplink beam for transmitting uplink data or an uplink reference signal according to the target identifier information in the uplink scheduling signaling and the SRS resource index.

Description

Uplink beam indication method, UE, base station and storage medium

Technical Field

The present invention relates to the field of communications technologies, and in particular, to an uplink beam indication method, a User Equipment (UE), a base station, and a storage medium.

Background

In the existing system, the detection of the uplink channel is completed by a sounding signal. The base station may obtain uplink channel information by sending a Sounding signal at a last Symbol of a Sounding Reference Signal (SRS) subframe by the UE, so as to perform resource scheduling and measurement of uplink transmission. In the prior art, a base station sends an SRS Resource Index (SRI) to a UE, so that the UE can determine an uplink beam indicated by the base station through the SRI.

In a large-scale antenna system, the number of transceiving antennas of a base station and a terminal is very large, especially in a high frequency band, the base station and the UE generate a narrow beam by using the large-scale antenna and transmit signals in a beam scanning manner, and the UE can transmit SRS in a periodic, non-periodic or semi-continuous manner according to the configuration of the base station. In this way, when the UE sends at least two sets of SRS to the base station, the UE cannot determine, according to the SRI indicated by the base station, which uplink beam is used for SRS transmission in which set. It can be seen that, when the UE sends at least two sets of SRSs to the base station, the UE cannot determine a specific uplink beam according to the SRI indicated by the base station.

Disclosure of Invention

The invention aims to provide an uplink beam indicating method, UE, a base station and a storage medium, so as to solve the problem that when the UE sends at least two groups of SRS to the base station, the UE cannot determine a specific uplink beam according to the SRI indicated by the base station.

In order to achieve the above object, an embodiment of the present invention provides an uplink beam indication method, where the method includes:

a user terminal (UE) receives an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying the Nth sending SRS of the UE, wherein N is an integer greater than or equal to 1;

and the UE determines that the SRS corresponding to the SRS resource index is a target SRS when the SRS is transmitted for the Nth time, and determines that an uplink beam used for transmitting the target SRS is a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE.

Optionally, before the UE receives an uplink scheduling signaling sent by the base station, the method further includes:

and the UE transmits the SRS to the base station at least twice, and stores identification information when the SRS is transmitted every time and uplink beam information used when the SRS is transmitted every time.

Optionally, before the UE transmits the SRS to the base station at least twice, the method further includes:

the UE receives at least two aperiodic SRS triggering signals sent by the base station, wherein each aperiodic SRS triggering signal is used for indicating the UE to send an SRS to the base station once, and each aperiodic SRS triggering signal carries identification information.

the UE receives periodic SRS configuration information sent by the base station;

the UE stores identification information for each SRS transmission, including:

and the UE carries out identification numbering on the SRS transmitted each time according to a preset rule, and stores the identification number corresponding to the SRS transmitted each time as the identification information of the SRS transmitted each time when the SRS is transmitted each time.

Optionally, the UE performs identifier numbering on the SRS transmitted each time according to a preset rule, including:

and the UE carries out identification numbering on the SRS transmitted each time according to the bit number of the identification information and the system frame number corresponding to the SRS transmitted each time.

Optionally, when the target identification information corresponds to at least two SRS transmissions, the UE determines that an SRS corresponding to the SRS resource index in the last SRS transmission of the at least two SRS transmissions is a target SRS.

The embodiment of the invention also provides an uplink beam indicating method, which comprises the following steps:

a base station sends an uplink scheduling signaling to a User Equipment (UE), wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, the uplink scheduling signaling is used for indicating that when the UE determines that the UE identified by the target identification information sends an SRS for the Nth time, the SRS corresponding to the SRS resource index is a target SRS, and an uplink beam used for sending the target SRS is determined to be a target uplink beam, the target uplink beam is an uplink beam used by the UE for sending uplink data or uplink reference signals, and N is an integer greater than or equal to 1.

Optionally, before the base station sends the uplink scheduling signaling to the UE, the method further includes:

the base station receives at least two SRSs sent by the UE, and determines the SRS with the best receiving quality as a target SRS;

and the base station determines that the identification information of the Nth SRS transmitted by the target SRS is the target identification information, and determines the SRS resource index of the target SRS in the Nth SRS transmitted by the base station.

Optionally, before the base station receives at least two SRS transmitted by the UE, the method further includes:

the base station sends at least two aperiodic SRS triggering signals to the UE, wherein each aperiodic SRS triggering signal is used for indicating the UE to send an SRS to the base station once, and each aperiodic SRS triggering signal carries identification information.

Optionally, before the base station receives at least two SRS transmitted by the user equipment UE, the method further includes:

the base station sends periodic SRS configuration information to the UE;

the base station determines the identification information of the Nth SRS transmitted by the target SRS, and the identification information comprises the following steps:

and the base station carries out identification numbering on the SRS sent by the UE every time according to a preset rule, and determines the identification number of the SRS sent by the target SRS in the Nth time as identification information.

Optionally, the base station performs identifier numbering on the SRS sent by the UE each time according to a preset rule, including:

and the base station carries out identification numbering on the SRS sent by the UE each time according to the bit number of the identification information and the system frame number corresponding to the SRS sent by the UE each time.

The embodiment of the invention also provides a User Equipment (UE), which comprises:

a first receiving module, configured to receive an uplink scheduling signaling sent by a base station, where the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used to identify an Nth-time SRS sent by the UE, where N is an integer greater than or equal to 1;

a determining module, configured to determine, when the SRS is transmitted for the nth time, the SRS corresponding to the SRS resource index as a target SRS, and determine, as a target uplink beam, an uplink beam used for transmitting the target SRS, where the target uplink beam is an uplink beam used by the UE for transmitting uplink data or an uplink reference signal.

Optionally, the UE further includes:

and the sending module is used for sending the SRS to the base station at least twice and saving the identification information when the SRS is sent every time and the uplink beam information used when the SRS is sent every time.

Optionally, the UE further includes:

a second receiving module, configured to receive at least two aperiodic SRS trigger signaling sent by the base station, where each aperiodic SRS trigger signaling is used to instruct the UE to send an SRS to the base station once, and each aperiodic SRS trigger signaling carries identification information.

Optionally, the UE further includes:

a third receiving module, configured to receive periodic SRS configuration information sent by the base station;

the sending module stores the identification information when sending the SRS each time, including:

and carrying out identification numbering on the SRS transmitted each time according to a preset rule, and saving the identification number corresponding to the SRS transmitted each time as the identification information of the SRS transmitted each time when the SRS is transmitted each time.

Optionally, the sending module performs identifier numbering on the SRS sent each time according to a preset rule, including:

and identifying and numbering the SRS sent each time according to the bit number of the identification information and the system frame number corresponding to the SRS sent each time.

Optionally, the determining, by the determining module, that the SRS corresponding to the SRS resource index is the target SRS when the nth SRS is transmitted, includes:

and when the target identification information corresponds to at least two times of transmitted SRSs, determining that the SRS corresponding to the SRS resource index in the latest SRS transmitted in the at least two times of transmitted SRSs is the target SRS.

An embodiment of the present invention further provides a base station, where the base station includes:

a first sending module, configured to send an uplink scheduling signaling to a user equipment UE, where the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, and the uplink scheduling signaling is used to indicate that, when the UE determines that the UE identified by the target identification information sends an SRS for the nth time, the SRS corresponding to the SRS resource index is a target SRS, and determine that an uplink beam used for sending the target SRS is a target uplink beam, where the target uplink beam is an uplink beam used by the UE for sending uplink data or an uplink reference signal, where N is an integer greater than or equal to 1.

Optionally, the base station further includes:

the receiving module is used for receiving at least two SRS sent by the UE and determining the SRS with the best receiving quality as a target SRS;

a determining module, configured to determine that the identification information of the nth SRS where the target SRS is located is the target identification information, and determine an SRS resource index of the target SRS in the nth SRS.

Optionally, the base station further includes:

a second sending module, configured to send at least two aperiodic SRS trigger signaling to the UE, where each aperiodic SRS trigger signaling is used to instruct the UE to send an SRS to the base station once, and each aperiodic SRS trigger signaling carries identification information.

Optionally, the base station further includes:

a third sending module, configured to send periodic SRS configuration information to the UE;

the determining module determines the identification information of the nth SRS where the target SRS is located, including:

and according to a preset rule, carrying out identification numbering on the SRS sent by the UE every time, and determining the identification number of the SRS sent for the Nth time where the target SRS is located as identification information.

Optionally, the determining module performs identifier numbering on the SRS sent by the UE each time according to a preset rule, including:

and identifying and numbering the SRS sent by the UE each time according to the bit number of the identification information and the system frame number corresponding to the SRS sent by the UE each time.

An embodiment of the present invention further provides a UE, including a memory, a processor, a transceiver, and at least one computer program stored in the memory and running on the processor, where the processor implements the following steps when executing the at least one computer program:

receiving an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying the Nth SRS sending of the UE, wherein N is an integer greater than or equal to 1;

and determining an SRS corresponding to the SRS resource index when the SRS is transmitted for the Nth time as a target SRS, and determining an uplink beam used for transmitting the target SRS as a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE.

An embodiment of the present invention further provides a base station, including a memory, a processor, a transceiver, and at least one computer program stored in the memory and operable on the processor, where the processor implements the following steps when executing the at least one computer program:

sending an uplink scheduling signaling to a User Equipment (UE), wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the uplink scheduling signaling is used for indicating that when the UE determines that the UE identified by the target identification information sends the SRS for the Nth time, the SRS corresponding to the SRS resource index is a target SRS, and determining that an uplink beam used for sending the target SRS is a target uplink beam, and the target uplink beam is an uplink beam used by the UE for sending uplink data or uplink reference signals, wherein N is an integer greater than or equal to 1.

An embodiment of the present invention further provides a computer-readable storage medium, where at least one computer program executable by a computer is stored in the computer-readable storage medium, and when executed by a processor, the at least one computer program implements the following steps:

The technical scheme of the invention at least has the following beneficial effects:

in the embodiment of the invention, a user terminal UE receives an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, and the target identification information is used for identifying the Nth sending SRS of the UE, wherein N is an integer greater than or equal to 1; and the UE determines that the SRS corresponding to the SRS resource index is a target SRS when the SRS is transmitted for the Nth time, and determines that an uplink beam used for transmitting the target SRS is a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE. In this way, the UE can determine an uplink beam for transmitting uplink data or an uplink reference signal according to the target identifier information in the uplink scheduling signaling and the SRS resource index.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a flowchart illustrating an uplink beam indication method according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a base station triggering a UE to send an SRS twice in an aperiodic manner according to an embodiment of the present invention;

fig. 3 is a schematic diagram of a UE periodically transmitting an SRS according to an embodiment of the present invention;

fig. 4 is a flowchart illustrating another uplink beam indication method according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 11 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 12 is a schematic structural diagram of another base station according to an embodiment of the present invention;

fig. 13 is a schematic structural diagram of another UE according to an embodiment of the present invention;

fig. 14 is a schematic structural diagram of another base station according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

In a large-scale antenna system, the number of transceiving antennas of a base station and a terminal is very large, especially in a high frequency band, the base station and the UE generate a narrow beam by using the large-scale antenna and transmit signals in a beam scanning manner, and the UE can transmit SRS in a periodic, non-periodic or semi-continuous manner according to the configuration of the base station. Specifically, the base station may trigger the UE to transmit the SRS aperiodically, e.g., the base station may trigger the UE to transmit the SRS by transmitting aperiodic SRS trigger signaling to the UE aperiodically. The base station may also trigger the UE to periodically transmit an SRS, for example, the base station may transmit periodic SRS configuration information to the UE, so as to trigger the UE to periodically transmit the SRS to the base station according to the periodic SRS configuration information.

Based on the above application scenario, the present invention provides an uplink beam indicating method, which will be described in detail below with reference to specific embodiments. The UE of the present invention may be a terminal Device such as a Mobile phone, a Computer, a home appliance, a Tablet Personal Computer (Tablet Personal Computer), a Laptop Computer (Laptop Computer), a Personal Digital Assistant (PDA), a Mobile Internet Device (MID), or a Wearable Device (Wearable Device). The base station mentioned in the embodiment of the present invention may be an evolved Node B (eNB) or another base station, and it should be noted that a specific type of the base station is not limited in the embodiment of the present invention.

Referring to fig. 1, fig. 1 is a schematic flowchart of an uplink beam indication method provided in an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:

step 101, a User Equipment (UE) receives an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying an Nth time SRS sent by the UE, wherein N is an integer greater than or equal to 1.

Step 102, the UE determines that an SRS corresponding to the SRS resource index is a target SRS when the nth SRS is transmitted, and determines that an uplink beam used for transmitting the target SRS is a target uplink beam, where the target uplink beam is an uplink beam used by the UE for transmitting uplink data or an uplink reference signal.

In the embodiment of the invention, the UE receives an uplink scheduling signaling sent by a base station, the uplink scheduling signaling carries target identification information and an SRS resource index, and the target identification information is used for identifying the Nth time of sending the SRS of the UE, wherein N is an integer greater than or equal to 1. For example, if the target identifier information is the same as the identifier information when the UE transmits the SRS for the 2 nd time, the target identifier information indicates that the UE transmits the SRS for the 2 nd time.

And the UE determines that the SRS corresponding to the SRS resource index is the target SRS when the SRS is transmitted for the Nth time corresponding to the target identification information according to the target identification information, and then further determines that an uplink beam used for transmitting the target SRS is a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE.

The target SRS is the SRS with the best receiving quality determined by the base station from the plurality of received SRSs, the base station further determines the SRS sending times of the target SRS, then determines the identification information corresponding to the SRS sending times of the target SRS as the target identification information, and carries the target identification information in the uplink scheduling signaling to send the target identification information to the UE. In this way, the UE can determine, according to the target identification information, the number of times of SRS transmission where the target SRS is located, that is, the UE can determine, according to the target identification information, that the target SRS is one of the SRSs that the UE transmits N times, and the UE can further determine that the SRS corresponding to the SRS resource index is the target SRS when the UE transmits the SRS N times.

In this embodiment of the present invention, the bit number of the identification information may be a preset fixed value, or may be configured by a high-level signaling, which is not specifically limited in this embodiment of the present invention. Assuming that the bit number of the identification information is L, and L is an integer greater than or equal to 1, the value range of the identification information is 0-2^L-1。

The UE pre-stores at least one piece of identification information and uplink beam information respectively adopted by at least two SRSs corresponding to each piece of identification information when transmitting, that is, uplink beam information respectively adopted by at least two SRSs in each SRS transmitted when transmitting. The UE may first determine, according to the target identifier information, a number of times of sending an SRS (for example, determine that the target identifier information corresponds to an SRS sent by the UE for the nth time), then determine, as a target SRS, an SRS corresponding to the SRS resource index in the SRS sent for the nth time, and finally determine, as a target uplink beam, an uplink beam used for sending the target SRS, where the target uplink beam is an uplink beam used by the UE for sending uplink data or uplink reference signals.

It can be understood that, when the identification information corresponds to at least two transmitted SRSs, the UE determines, as a target SRS, an SRS corresponding to the SRS resource index in a latest SRS transmitted from the at least two transmitted SRSs.

In this embodiment, before the UE receives an uplink scheduling signaling sent by a base station, the UE sends an SRS to the base station at least twice, and stores identification information for each SRS transmission and uplink beam information used for each SRS transmission. When receiving the SRSs transmitted by the UE at least twice, the base station determines the SRS with the best reception quality as a target SRS, then determines the identification information of the nth SRS where the target SRS is located as the target identification information, determines an SRS resource index of the nth SRS where the target SRS is transmitted, and carries the target identification information and the SRS resource index in the uplink scheduling signaling, so that the UE determines an uplink beam for transmitting uplink data or an uplink reference signal. The uplink beam information may be a number of an uplink beam, configuration information of the uplink beam, or other information for identifying the uplink beam, which is not specifically limited in this embodiment of the present invention.

The sending, by the UE, the SRS to the base station at least twice may be sent on the condition that an aperiodic SRS trigger signaling sent by the base station is received, and specifically, the UE receives the aperiodic SRS trigger signaling sent by the base station and then sends the SRS to the base station based on the aperiodic SRS trigger signaling. It should be noted that, each time the UE receives an aperiodic SRS trigger signaling sent by the base station, the UE sends an SRS to the base station once. That is, in this case, it is a precondition that the UE transmits the SRS to the base station at least twice, that is, the UE receives at least two aperiodic SRS trigger signaling transmitted by the base station.

The UE may transmit the SRS to the base station at least twice, or may transmit the SRS on the condition that the periodic SRS configuration information transmitted by the base station is received. Specifically, when the UE receives periodic SRS configuration information sent by the base station, the UE periodically sends an SRS to the base station according to the periodic SRS configuration information.

Regardless of whether the UE periodically transmits the SRS to the base station or aperiodically transmits the SRS to the base station, the UE stores identification information for each SRS transmission and uplink beam information used for each SRS transmission when transmitting the SRS to the base station. Specifically, for the case that the UE aperiodically transmits the SRS to the base station, each aperiodic SRS trigger signaling transmitted by the base station carries identification information, and when the UE transmits the SRS to the base station once based on one aperiodic SRS trigger signaling, the UE stores the identification information carried in the aperiodic SRS trigger signaling and uplink beam information used by the SRS to be transmitted. And for the condition that the UE periodically transmits the SRS to the base station, the UE carries out identification numbering on the SRS transmitted each time when transmitting the SRS to the base station according to a preset rule, then saves the identification number corresponding to the SRS transmitted each time as identification information of the SRS transmitted each time when transmitting the SRS each time, and saves uplink beam information used by the SRS transmitted each time.

In this embodiment, the UE receives at least two aperiodic SRS trigger signaling sent by the base station, and then sends an SRS to the base station at least twice based on the at least two aperiodic SRS trigger signaling. Wherein each aperiodic SRS trigger signaling is used to instruct the UE to transmit an SRS to the base station once. It can be understood that the UE transmitting the SRS to the base station at least twice is not limited to being performed after completely receiving at least two aperiodic SRS trigger signals transmitted by the base station, and may transmit the SRS to the base station once every time one aperiodic SRS trigger signal is received.

Assuming that the bit number of the identification information is L, the value range of the identification information is 0-2^L-1, the base station can select 0-2 when transmitting each aperiodic SRS triggering signaling to the UE^L-1, wherein one value is used as identification information of the aperiodic SRS trigger signaling, the UE receives the aperiodic SRS trigger signaling and sends an SRS to the base station once according to the aperiodic SRS trigger signaling, and the base station stores the identification information carried in the aperiodic SRS trigger signaling as the identification information of the SRS to be sent this time.

For example, assuming that L is 1, when the base station sends a first aperiodic SRS trigger signaling to the UE, the base station carries identification information "0", the UE sends an SRS to the base station for the first time based on the first aperiodic SRS trigger signaling, the UE saves the identification information of the first SRS to be "0", and sends uplink beam information used by at least two SRS respectively when the SRS is sent for the first time. When the base station carries identification information '1' to the second aperiodic SRS triggering signaling, the UE transmits the SRS to the base station for the second time based on the second aperiodic SRS triggering signaling, the UE saves the identification information of the SRS transmitted for the second time as '1', and the UE saves uplink beam information respectively used by at least two SRSs transmitted when the SRS is transmitted for the second time. By analogy, when the bit number of the identification information is 1, the aperiodic SRS trigger signaling sent by the base station to the UE carries identification information "0" or "1", as shown in fig. 2, fig. 2 is a schematic diagram of the base station sending the SRS twice by aperiodically triggering the UE according to the embodiment of the present invention, and table 1 below is a table of correspondence between the identification information and the number of times the UE sends the SRS.

Table 1: identification information

Identification information
		0	Corresponding to the 1 st SRS transmission
1	Corresponding to the 2 nd SRS transmission

It is assumed that the UE transmits M SRSs to the base station at a time, where M is an integer greater than or equal to 2. When M is 8, that is, when the UE transmits 8 SRSs to the base station each time, the number of bits of the SRS resource index is 3, that is, 3 bits are used to indicate a specific SRS, and table 2 below is a table of correspondence between the SRS resource index and the 8 SRSs.

Table 2: SRS resource index

SRI information
		000	SRI＝1
001	SRI＝2
		010	SRI＝3
011	SRI＝4
		100	SRI＝5
101	SRI＝6
		110	SRI＝7
111	SRI＝8

Based on the above example, when the target identification information carried in the uplink scheduling information sent by the base station to the UE is "1" and the SRS resource index is "010", the UE determines, according to the target identification information, an SRS corresponding to the SRS resource index of "010" in the SRS to be sent for the second time as the target SRS, that is, determines the 3 rd SRS to be sent for the second time as the target SRS, and further determines, according to the stored uplink beam information used by the SRS to be sent for the second time, the uplink beam used by the target SRS as the target uplink beam.

It should be noted that, when the target identification information corresponds to at least two SRS transmissions, the UE determines, as the target SRS, the SRS corresponding to the SRS resource index in the SRS transmission last time of the at least two SRS transmissions.

For example, further, when the base station triggers the signaling to the third aperiodic SRS, the base station carries identification information "0", the UE sends the SRS to the base station for the third time based on the third aperiodic SRS triggering signaling, the UE saves the identification information of the SRS to be sent for the second time as "0", and saves uplink beam information used by at least two SRS respectively when sending the SRS for the third time.

When target identification information carried in an uplink scheduling signaling sent by the base station to the UE is "0" and an SRS resource index is "101", the UE determines that an SRS corresponding to an SRS resource index of "101" in an SRS that is sent most recently in two SRS transmissions corresponding to the target identification information "0" is a target SRS, that is, determines that a 6 th SRS in an SRS that is sent for the third time is a target SRS, because the target identification information "0" corresponds to the UE to send the SRS for the first time and to send the SRS for the third time at the same time.

the UE stores identification information for each SRS transmission, including:

In this embodiment, the UE receives periodic SRS configuration information sent by the base station, and then periodically sends an SRS to the base station based on the periodic SRS configuration information, where the periodic SRS configuration information may include a period configured by the base station and a subframe offset. The method for the UE to store the identification information when sending the SRS each time may specifically be that the SRS sent each time is identified according to a preset rule, and the identification number corresponding to the SRS sent each time is stored as the identification information of the SRS sent each time, where the preset rule is a rule agreed in advance by the UE and the base station, for example, the identification number is determined according to a system frame number and a bit number of the identification information when sending the SRS each time.

For example, assuming that the bit number of the identification information is 2, the value of the identification information is 0 to 3, and as shown in fig. 3, when the UE first transmits the SRS, the identification information corresponding to the first SRS is stored as "00" (that is, the identification number is 0), and the uplink beam information used by each of the 8 SRSs transmitted when the UE first transmits the SRS is stored. When the UE transmits the SRS for the second time, the UE stores the identification information "01" (i.e., the identification number is 1) corresponding to the SRS for the second time, and stores uplink beam information used by each of the 8 SRS transmitted when the SRS is transmitted for the second time. When the UE transmits the SRS for the third time, the UE stores the identifier information "10" (i.e., identifier number 2) corresponding to the SRS for the third time, and stores uplink beam information used by each of the 8 SRS transmitted when the SRS is transmitted for the third time. When the UE transmits the SRS for the fourth time, the UE stores the identification information "11" (i.e., identification number 3) corresponding to the SRS for the fourth time, and stores uplink beam information used by each of the 8 SRS transmitted when the SRS is transmitted for the fourth time. The following table 3 shows the correspondence between the identifier information and the identifier number, and the correspondence between the SRS resource index and the 8 SRS transmitted each time is the same as that in table 2 above.

Table 3: identification number

Identification information	Identification number
		00	0
01	1
		10	2
11	3

Based on the above example, when the target identification information carried in the uplink scheduling signaling sent by the base station is "01" and the SRS resource index is "010", the UE may determine, according to the target identification information, that the 3 rd SRS is the target SRS in the SRS sent for the second time (i.e., the SRS with the identification number of 1).

In this embodiment, the UE may identify and number the SRS to be transmitted each time according to the preset rule specifically by identifying and numbering the SRS to be transmitted each time according to the bit number of the identification information and the system frame number corresponding to the SRS to be transmitted each time. Specifically, assuming that the system frame number corresponding to a certain SRS transmission is K, the UE may use the formula [ K mod (2)^L) The identification number corresponding to the SRS is determined, and then identification information is further determined according to the determined identification number, where "mod" is remainder operation, and L is the number of bits of the identification information.

It can be understood that, when the base station determines that the SRS with the best reception quality is the target SRS, the base station also determines the target identification information according to the preset rule, and then carries the target identification information in the uplink scheduling signaling to send to the UE.

Referring to fig. 4, fig. 4 is a schematic flowchart of another uplink beam indication method provided in the embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:

step 401, a base station sends an uplink scheduling signaling to a user equipment UE, where the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, and the uplink scheduling signaling is used to instruct the UE to determine that, when the UE identified by the target identification information sends an SRS for the nth time, an SRS corresponding to the SRS resource index is a target SRS, and determine that an uplink beam used for sending the target SRS is a target uplink beam, where the target uplink beam is an uplink beam used by the UE for sending uplink data or an uplink reference signal, where N is an integer greater than or equal to 1.

the base station sends periodic SRS configuration information to the UE;

It should be noted that this embodiment may be a base station side embodiment corresponding to the embodiment shown in fig. 1, and the relevant steps executed by the base station may refer to relevant descriptions in the embodiment shown in fig. 1, and are not described again here.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a UE according to an embodiment of the present invention, and as shown in fig. 5, the UE includes:

a first receiving module 501, configured to receive an uplink scheduling signaling sent by a base station, where the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, and the target identification information is used to identify an nth SRS to be sent by the UE, where N is an integer greater than or equal to 1;

a determining module 502, configured to determine, when the SRS is transmitted for the nth time, the SRS corresponding to the SRS resource index as a target SRS, and determine, as a target uplink beam, an uplink beam used for transmitting the target SRS, where the target uplink beam is an uplink beam used by the UE to transmit uplink data or an uplink reference signal.

Optionally, referring to fig. 6, fig. 6 is a schematic structural diagram of another UE provided in the embodiment of the present invention, and as shown in fig. 6, the UE further includes:

a sending module 503, configured to send the SRS to the base station at least twice, and store the identification information when sending the SRS each time and the uplink beam information used when sending the SRS each time.

Optionally, referring to fig. 7, fig. 7 is a schematic structural diagram of another UE provided in the embodiment of the present invention, and as shown in fig. 7, the UE further includes:

a second receiving module 504, configured to receive at least two aperiodic SRS trigger signaling sent by the base station, where each aperiodic SRS trigger signaling is used to instruct the UE to send an SRS to the base station once, and each aperiodic SRS trigger signaling carries identification information.

Optionally, referring to fig. 8, fig. 8 is a schematic structural diagram of another UE provided in the embodiment of the present invention, and as shown in fig. 8, the UE further includes:

a third receiving module 505, configured to receive periodic SRS configuration information sent by the base station;

the sending module 503 stores the identification information of each SRS transmission, including:

Optionally, the sending module 503 performs identifier numbering on the SRS sent each time according to a preset rule, including:

Optionally, the determining module 502 determines that the SRS corresponding to the SRS resource index when the SRS is transmitted for the nth time is the target SRS, including:

It should be noted that, in this embodiment, the UE may be the UE in the embodiment shown in fig. 1, and any implementation of the UE in the embodiment shown in fig. 1 may be implemented by the UE in this embodiment to achieve the same beneficial effects, which is not described herein again.

Referring to fig. 9, fig. 9 is a schematic structural diagram of a base station according to an embodiment of the present invention, and as shown in fig. 9, the base station includes:

a first sending module 901, configured to send an uplink scheduling signaling to a user equipment UE, where the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, and the uplink scheduling signaling is used to indicate that, when the UE determines that the UE identified by the target identification information sends an SRS for the nth time, the SRS corresponding to the SRS resource index is a target SRS, and determine that an uplink beam used for sending the target SRS is a target uplink beam, where the target uplink beam is an uplink beam used by the UE for sending uplink data or an uplink reference signal, where N is an integer greater than or equal to 1.

Optionally, referring to fig. 10, fig. 10 is a schematic structural diagram of another base station provided in the embodiment of the present invention, and as shown in fig. 10, the base station further includes:

a receiving module 902, configured to receive at least two SRS sent by a UE, and determine an SRS with the best reception quality as a target SRS;

a determining module 903, configured to determine that the identification information of the nth SRS where the target SRS is located is the target identification information, and determine an SRS resource index of the target SRS in the nth SRS.

Optionally, referring to fig. 11, fig. 11 is a schematic structural diagram of another base station provided in the embodiment of the present invention, and as shown in fig. 11, the base station further includes:

a second sending module 904, configured to send at least two aperiodic SRS trigger signaling to the UE, where each aperiodic SRS trigger signaling is used to instruct the UE to send an SRS to the base station once, and each aperiodic SRS trigger signaling carries identification information.

Optionally, referring to fig. 12, fig. 12 is a schematic structural diagram of another base station provided in the embodiment of the present invention, and as shown in fig. 12, the base station further includes:

a third sending module 905, configured to send periodic SRS configuration information to the UE;

the determining module 903 determines the identification information of the nth SRS where the target SRS is located, where the determining includes:

Optionally, the determining module 903 performs identifier numbering on the SRS sent by the UE each time according to a preset rule, where the identifier numbering includes:

It should be noted that, in this embodiment, the base station may be the base station in the embodiment shown in fig. 1, and any implementation of the base station in the embodiment shown in fig. 1 may be implemented by the base station in this embodiment to achieve the same beneficial effects, and details are not described here again.

Referring to fig. 13, fig. 13 is a schematic structural diagram of another UE according to an embodiment of the present invention, and as shown in fig. 13, the UE includes: a processor 1300, a transceiver 1310, a memory 1320, a user interface 1330, and a bus interface, wherein:

a processor 1300, for reading the program in the memory 1320, for executing the following processes:

In fig. 13, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1300 and various circuits of memory represented by memory 1320 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1310 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. User interface 1330 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1300 is responsible for managing the bus architecture and general processing, and the memory 1320 may store data used by the processor 1300 in performing operations.

Optionally, before the processor 1300 receives the uplink scheduling signaling sent by the base station, the processor is further configured to:

and sending the SRS to the base station at least twice, and saving identification information when sending the SRS each time and uplink beam information used when sending the SRS each time.

Optionally, before the processor 1300 transmits the SRS to the base station at least twice, the processor is further configured to:

receiving at least two aperiodic SRS triggering signals sent by the base station, wherein each aperiodic SRS triggering signal is used for indicating the UE to send an SRS to the base station once, and each aperiodic SRS triggering signal carries identification information.

receiving periodic SRS configuration information sent by the base station;

the processor 1300 stores the identification information every time the SRS is transmitted, including:

Optionally, the processor 1300 performs identifier numbering on the SRS transmitted each time according to a preset rule, including:

Optionally, when the target identification information corresponds to at least two SRS transmissions, the processor 1300 determines, as the target SRS, an SRS corresponding to the SRS resource index in the SRS transmission last time of the at least two SRS transmissions.

Referring to fig. 14, fig. 14 is a schematic structural diagram of another base station according to an embodiment of the present invention, and as shown in fig. 14, the base station includes: a processor 1400, a transceiver 1410, a memory 1420, a user interface 1430, and a bus interface, wherein:

the processor 1400 is used for reading the program in the memory 1420 and executing the following processes:

In fig. 14, the bus architecture may include any number of interconnected buses and bridges, with one or more processors represented by processor 1400 and various circuits of memory represented by memory 1420 being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1410 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. For different user devices, the user interface 1430 may also be an interface capable of interfacing with a desired device externally, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1400 is responsible for managing the bus architecture and general processing, and the memory 1420 may store data used by the processor 1400 in performing operations.

Optionally, before the processor 1400 sends the uplink scheduling signaling to the UE, the processor is further configured to:

receiving at least two SRSs sent by UE, and determining the SRS with the best receiving quality as a target SRS;

and determining the identification information of the Nth SRS where the target SRS is positioned as target identification information, and determining the SRS resource index of the target SRS in the Nth SRS.

Optionally, before the processor 1400 receives at least two SRS transmitted by the UE, it is further configured to:

and sending at least two aperiodic SRS triggering signals to the UE, wherein each aperiodic SRS triggering signal is used for indicating the UE to send an SRS to the base station once, and each aperiodic SRS triggering signal carries identification information.

Optionally, before the processor 1400 receives at least two SRS transmitted by the user equipment UE, the processor is further configured to:

sending periodic SRS configuration information to the UE;

the determining, by the processor 1400, the identification information of the nth SRS where the target SRS is located includes:

Optionally, the processor 1400 performs identifier numbering on the SRS transmitted by the UE each time according to a preset rule, including:

It will be understood by those skilled in the art that all or part of the steps of the method for implementing the above embodiments may be implemented by hardware associated with at least one program instruction, the at least one program may be stored in a computer readable storage medium, and the at least one program when executed includes the steps of:

Optionally, before the at least one program is executed to implement the receiving of the uplink scheduling signaling sent by the base station, the following steps are further implemented:

Optionally, before the at least two SRS transmissions to the base station, the at least one program further performs the following steps:

receiving periodic SRS configuration information sent by the base station;

the storing of the identification information each time the SRS is transmitted includes:

Optionally, the performing, according to a preset rule, an identifier number on the SRS transmitted each time includes:

Optionally, when the target identification information corresponds to at least two SRS transmissions, it is determined that an SRS corresponding to the SRS resource index in the last SRS transmission of the at least two SRS transmissions is a target SRS.

The storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, for example.

Optionally, before the at least one program is executed to send uplink scheduling signaling to the UE, the following steps are further implemented:

Optionally, before the at least one program is executed to implement receiving at least two SRS transmissions sent by the UE, the following steps are further implemented:

Optionally, before the at least one program is executed to implement receiving at least two SRS transmissions sent by a user equipment UE, the following steps are further implemented:

sending periodic SRS configuration information to the UE;

the determining the identification information of the nth SRS where the target SRS is located includes:

Optionally, the identifying and numbering the SRS sent by the UE each time according to a preset rule includes:

In the several embodiments provided in the present application, it should be understood that the disclosed method and apparatus may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be physically included alone, or two or more units may be integrated into one unit. The integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.

The integrated unit implemented in the form of a software functional unit may be stored in a computer readable storage medium. The software functional unit is stored in a storage medium and includes several instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute some steps of the transceiving method according to various embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An uplink beam indication method, comprising:

a user terminal (UE) receives an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying an SRS sent by the UE for the Nth time, wherein N is an integer greater than or equal to 1;

the UE determines that an SRS corresponding to the SRS resource index is a target SRS when the SRS is transmitted for the Nth time, and determines that an uplink beam used for transmitting the target SRS is a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE; the UE stores at least one piece of identification information in advance, and uplink beam information which is respectively adopted by at least two SRSs corresponding to each piece of identification information when the SRSs are transmitted.

2. The method of claim 1, wherein before the UE receives uplink scheduling signaling sent by a base station, the method further comprises:

3. The method of claim 2, wherein the UE transmits the SRS to the base station at least twice before the UE, the method further comprising:

4. The method of claim 2, wherein the UE transmits the SRS to the base station at least twice before the UE, the method further comprising:

the UE stores identification information for each SRS transmission, including:

5. The method of claim 4, wherein the UE performing the ID numbering on the SRS transmitted each time according to a preset rule comprises:

6. The method of claim 1, wherein when the target identification information corresponds to at least two transmitted SRSs, the UE determines an SRS corresponding to the SRS resource index in a latest one of the at least two transmitted SRSs as a target SRS.

7. An uplink beam indication method, comprising:

a base station sends an uplink scheduling signaling to a User Equipment (UE), wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, the target identification information is used for identifying an SRS sent by the UE for the Nth time, the uplink scheduling signaling is used for indicating that when the UE determines to send the SRS for the Nth time, the SRS corresponding to the SRS resource index is a target SRS, an uplink beam used for sending the target SRS is determined to be a target uplink beam, the target uplink beam is an uplink beam used for sending uplink data or an uplink reference signal by the UE, and N is an integer greater than or equal to 1;

before the base station sends the uplink scheduling signaling to the UE, the method further includes:

and the base station determines that the identification information of the SRS sent for the Nth time where the target SRS is positioned is the target identification information, and determines the SRS resource index of the target SRS in the SRS sent for the Nth time.

8. The method of claim 7, wherein prior to the base station receiving at least two SRS transmissions from the UE, the method further comprises:

9. The method of claim 7, wherein before the base station receives at least two SRS transmissions from a user terminal UE, the method further comprises:

the base station sends periodic SRS configuration information to the UE;

the base station determines the identification information of the SRS sent for the Nth time in which the target SRS is located, and the identification information comprises the following steps:

10. The method of claim 9, wherein the base station numbering the SRS transmitted by the UE each time according to a preset rule, comprises:

11. A user equipment, UE, comprising:

a first receiving module, configured to receive an uplink scheduling signaling sent by a base station, where the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used to identify an SRS sent by the UE for the nth time, where N is an integer greater than or equal to 1;

a determining module, configured to determine, when an SRS is transmitted for an nth time, an SRS corresponding to the SRS resource index as a target SRS, and determine, as a target uplink beam, an uplink beam used for transmitting the target SRS, where the target uplink beam is an uplink beam used by the UE to transmit uplink data or an uplink reference signal; the UE stores at least one piece of identification information in advance, and uplink beam information which is respectively adopted by at least two SRSs corresponding to each piece of identification information when the SRSs are transmitted.

12. The UE of claim 11, wherein the UE further comprises:

13. The UE of claim 12, wherein the UE further comprises:

14. The UE of claim 12, wherein the UE further comprises:

15. The UE of claim 14, wherein the sending module performs identifier numbering on the SRS sent each time according to a preset rule, and the identifier numbering comprises:

16. The UE of claim 11, wherein the determining module determines the SRS corresponding to the SRS resource index as the target SRS when the nth SRS is transmitted, and includes:

and when the target identification information corresponds to at least two times of transmitted SRSs, determining that the SRS corresponding to the SRS resource index in the SRS transmitted most recently in the at least two times of transmitted SRSs is the target SRS.

17. A base station, characterized in that the base station comprises:

a first sending module, configured to send an uplink scheduling signaling to a user equipment UE, where the uplink scheduling signaling carries target identification information and a sounding reference signal SRS resource index, the target identification information is used to identify an SRS that is sent by the UE for an nth time, and the uplink scheduling signaling is used to indicate that, when the UE determines to send the SRS for the nth time, the SRS corresponding to the SRS resource index is a target SRS, and determine an uplink beam used for sending the target SRS as a target uplink beam, where the target uplink beam is an uplink beam used by the UE for sending uplink data or an uplink reference signal, where N is an integer greater than or equal to 1;

a determining module, configured to determine that the identification information of the SRS that is transmitted N times where the target SRS is located is target identification information, and determine an SRS resource index of the target SRS in the SRS that is transmitted N times.

18. The base station of claim 17, wherein the base station further comprises:

19. The base station of claim 17, wherein the base station further comprises:

the determining module determines the identification information of the SRS which is transmitted for the nth time and where the target SRS is located, including:

20. The base station of claim 19, wherein the determining module performs id numbering on the SRS transmitted by the UE each time according to a preset rule, and the id numbering comprises:

21. A user terminal, UE, comprising a memory, a processor, a transceiver, and at least one computer program stored on the memory and executable on the processor, wherein the processor when executing the at least one computer program implements the steps of:

receiving an uplink scheduling signaling sent by a base station, where the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used to identify an SRS sent by the UE for the Nth time, where N is an integer greater than or equal to 1;

determining an SRS corresponding to the SRS resource index when the SRS is transmitted for the Nth time as a target SRS, and determining an uplink beam used for transmitting the target SRS as a target uplink beam, wherein the target uplink beam is an uplink beam used for transmitting uplink data or uplink reference signals by the UE; the UE stores at least one piece of identification information in advance, and uplink beam information which is respectively adopted by at least two SRSs corresponding to each piece of identification information when the SRSs are transmitted.

22. A base station comprising a memory, a processor, a transceiver, and at least one computer program stored on the memory and executable on the processor, wherein the processor when executing the at least one computer program implements the steps of:

sending an uplink scheduling signaling to a User Equipment (UE), wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, the target identification information is used for identifying an SRS sent by the UE for the Nth time, the uplink scheduling signaling is used for indicating that when the UE determines to send the SRS for the Nth time, the SRS corresponding to the SRS resource index is a target SRS, an uplink beam used for sending the target SRS is determined as a target uplink beam, the target uplink beam is an uplink beam used by the UE for sending uplink data or an uplink reference signal, and N is an integer greater than or equal to 1;

23. A computer-readable storage medium in which at least one computer program executable by a computer is stored, the at least one computer program, when executed by a processor, implementing the steps of:

receiving an uplink scheduling signaling sent by a base station, wherein the uplink scheduling signaling carries target identification information and a Sounding Reference Signal (SRS) resource index, and the target identification information is used for identifying an SRS sent by UE for the Nth time, wherein N is an integer greater than or equal to 1;

24. A computer-readable storage medium in which at least one computer program executable by a computer is stored, the at least one computer program, when executed by a processor, implementing the steps of:

before sending the uplink scheduling signaling to the user equipment UE, the method further includes: