CN110034875B - Wireless communication method and device - Google Patents
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Abstract
The embodiment of the application discloses a wireless communication method and a device, wherein the method comprises the following steps: when the UE is configured for codebook-based transmission, the SRS resource indicating SRI pointing in the UE downlink control information DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in the SRS resource set for antenna selection or resources in the SRS resource set for non-codebook transmission, and carrying out uplink data transmission based on a codebook by the UE based on the indicated SRI; when the UE is configured for non-codebook based transmission, the SRS resource indicating SRI pointing in the UE downlink control information DCI includes: and configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission in advance, and carrying out non-codebook-based uplink data transmission by the UE based on the indicated SRI.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a wireless communication method and apparatus.
Background
At present, according to the function of SRS (Sounding Reference Signal) resources, SRS resources can be divided into four categories: SRS resources for codebook transmission, SRS resources for non-codebook transmission, SRS resources for beam training, and SRS resources for antenna selection.
In the prior art, under the condition that a network side has configured at least one of an SRS resource for beam training and an SRS resource for antenna selection for a UE, if the UE (User Equipment) is configured for codebook-based transmission, the network side needs to configure the SRS resource for codebook transmission for the UE to implement uplink data transmission; if the UE is configured for non-codebook based transmission, the network side needs to configure SRS resources for the non-codebook transmission for the UE, so as to implement uplink data transmission. In this case, if a wireless communication method can be proposed to realize that uplink data transmission is indicated by SRS resources for beam training or SRS resources for antenna selection, SRS resource overhead is undoubtedly reduced.
Disclosure of Invention
An object of the embodiments of the present application is to provide a wireless communication method and apparatus, so as to achieve the purpose of reducing SRS resource overhead.
In order to solve the above technical problem, the embodiment of the present application is implemented as follows:
in a first aspect, a wireless communication method is provided, which is applied to a network device, and the method includes:
when uplink data transmission of terminal equipment (UE) is configured to be codebook-based transmission, indicating that an uplink Sounding Resource Indicator (SRI) in Downlink Control Information (DCI) of the UE points to an SRS resource comprises: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when the uplink data transmission of the UE is configured to be based on non-codebook transmission, indicating that the SRS resource pointed by the SRI in the downlink control information DCI of the UE comprises: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
In a second aspect, a wireless communication method is provided, which is applied to a UE, and includes:
receiving DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
In a third aspect, a wireless communication apparatus is provided, which is applied to a network device, and the apparatus includes:
a first indication unit, configured to indicate, when uplink data transmission of a terminal device UE is configured to be codebook-based transmission, that an SRS resource pointed to by an uplink sounding resource indicator SRI in DCI of the UE downlink control information includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
a second indicating unit, configured to indicate, when uplink data transmission of the UE is configured to be non-codebook-based transmission, that an SRS resource pointed to by an SRI in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
In a fourth aspect, a wireless communication apparatus is provided, which is applied to a UE, and the apparatus includes:
a receiving unit configured to receive DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
In a fifth aspect, a network device is provided, where the network device includes: the wireless communication method comprises a processor, a memory and a wireless communication program stored on the memory and capable of running on the processor, wherein the wireless communication program realizes the steps of the wireless communication method applied to the network equipment when being executed by the processor.
In a sixth aspect, a computer-readable storage medium is provided, on which a wireless communication program is stored, and the wireless communication program, when executed by a processor, implements the steps of the wireless communication method applied to a network device.
In a seventh aspect, a terminal device is provided, where the terminal device includes: a processor, a memory and a wireless communication program stored on the memory and operable on the processor, the wireless communication program when executed by the processor implementing the steps of the wireless communication method applied to a terminal device.
In an eighth aspect, a computer-readable storage medium is proposed, on which a wireless communication program is stored, which when executed by a processor implements the steps of the above-described wireless communication method applied to a terminal device.
As can be seen from the technical solutions provided in the embodiments of the present application, the embodiments of the present application have at least one of the following technical effects:
in the embodiment of the present application, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a flow chart of a method of wireless communication of one embodiment of the present application;
fig. 2 is a flow chart of a wireless communication method of another embodiment of the present application;
fig. 3 is a flow chart of a method of wireless communication of another embodiment of the present application;
fig. 4 is a schematic structural diagram of a wireless communication device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a wireless communication apparatus according to another embodiment of the present application;
FIG. 6 is a schematic block diagram of a network device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be understood that the technical solutions of the embodiments of the present application may be applied to various communication systems, for example: GSM (Global System for Mobile communications), CDMA (Code Division Multiple Access) System, WCDMA (Wideband Code Division Multiple Access) System, GPRS (General Packet Radio Service) System, LTE (Long Term Evolution) System, FDD (Frequency Division Duplex) System, TDD (Time Division Duplex) System, UMTS (Universal Mobile telecommunications System), or WIMAX (Worldwide Interoperability for Microwave Access) communication System, 5G System, or NR (New Radio) System.
In the embodiment of the present application, the Terminal device may include, but is not limited to, a Mobile Station (MS), a Mobile Terminal (Mobile Terminal), a Mobile phone (Mobile Telephone), a User Equipment (UE), a handset (handset), a portable device (portable Equipment), a vehicle (vehicle), and the like, and the Terminal device may communicate with one or more core networks through a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, and the Terminal device may also be a portable, pocket, handheld, computer-embedded, or vehicle-mounted Mobile apparatus.
The network device referred to in the embodiments of the present application is an apparatus deployed in a radio access network to provide a wireless communication function for a terminal device. The network device may be a base station, and the base station may include various macro base stations, micro base stations, relay stations, access points, and the like. In systems employing different radio access technologies, the names of devices having a base station function may differ. For example, in an LTE network, referred to as an Evolved node B (eNB or eNodeB), in a third Generation (3rd Generation, 3G) network, referred to as a node B (node B), and so on.
The embodiment of the application provides a wireless communication method and a wireless communication device.
The following first describes a wireless communication method provided in an embodiment of the present application.
For ease of understanding, some concepts referred to in the embodiments of the present application are described.
An SRS (Sounding Reference Signal) for estimating uplink channel frequency domain information, performing frequency selective scheduling, and also for estimating an uplink channel and performing downlink beamforming;
SRI (SRS Resource Index, uplink sounding Resource indication) for indicating which SRS Resource the UE uses for uplink data transmission;
the DCI (Downlink Control information) is carried by a Physical Downlink Control Channel PDCCH (Physical Downlink Control Channel), and specifically includes uplink and Downlink resource allocation, HARQ information, power Control, and the like.
And the uplink transmission codebook indication (TPMI) is issued to the UE by the network side and is used for indicating the uplink transmission codebook.
At present, according to the function of SRS (Sounding Reference Signal) resources, SRS resources (SRS resources) can be divided into four categories: SRS resources for codebook transmission (SRS Resource for codebook based transmission), SRS resources for non-codebook transmission (SRS Resource for non-codebook based transmission), SRS resources for beam training (SRS Resource for beam management), and SRS resources for antenna selection (srsrsrsresource for antenna switching). Uplink transmission schemes fall into two categories: one is a codebook based transmission scheme (codebook based transmission), and the other is a non-codebook based transmission scheme (non-codebook based transmission).
Fig. 1 is a flowchart of a wireless communication method according to an embodiment of the present application, which is applied to a network device, and as shown in fig. 1, the method may include the following steps:
In this embodiment of the present application, when uplink data transmission of a UE is configured to be codebook-based transmission, a network device may instruct the UE to perform codebook-based uplink data transmission through an SRS resource pointed by an uplink sounding resource indicator SRI in downlink control information DCI, where the SRS resource includes: the resources within the set of SRS resources for beam training, the resources within the set of SRS resources for antenna selection, or the resources within the set of SRS resources for non-codebook transmission are preconfigured.
In this embodiment of the present application, when uplink data transmission of a UE is configured to be non-codebook-based transmission, a network device may instruct the UE to perform non-codebook-based uplink data transmission through an SRS resource pointed by an SRI in a DCI, where the SRS resource includes: the resources within the set of SRS resources for beam training, the resources within the set of SRS resources for antenna selection, or the resources within the set of SRS resources for codebook transmission are preconfigured.
In the embodiment of the application, the network device may perform resource numbering on resources in all SRS resource sets configured for the UE, so as to determine a unique SRS resource in the DCI, wherein the resource numbering is performed in sequence one by one according to the resources in all the sets; alternatively, the resource number is composed of a first part for pointing to the resource set and a second part for pointing to the resource within the resource set. In this case, the SRI in the DCI sent by the network device includes a resource number for uniquely identifying the SRS resource, where there is a one-to-one correspondence between the SRI and the SRS resource. At this time, when receiving the DCI from the network device, the UE may determine, according to the resource number used for uniquely identifying the SRS resource included in the SRI in the DCI and the corresponding relationship between the resource number and the SRS resource, the SRS resource pointed by the SRI in the DCI.
In this embodiment of the application, a network device may configure, through at least one of an RRC layer signaling and an MAC layer signaling, an SRS resource to which an SRI in DCI points, specifically, configure a mapping relationship between a trigger state (trigger state) of the SRI in the DCI and the SRS resource to which the SRI points, and at this time, when receiving the DCI from the network device, a UE may determine, according to the trigger state of the SRI in the DCI and the mapping relationship between the trigger state of the SRI and the SRS resource to which the SRI points, the SRS resource to which the SRI in the DCI points.
In this embodiment of the present application, the network device may configure, according to a pre-agreed rule, an SRS resource pointed to by an SRI in the DCI, and at this time, the wireless communication method may further include the following steps: and configuring an SRS resource set and resources for the UE, and pointing to the corresponding SRS resource by using the SRI in the DCI according to a pre-agreed rule. Specifically, the pre-agreed rules may include:
when the SRS resource used for codebook transmission and the SRS resource used for non-codebook transmission are not configured, the SRI points to the SRS resource which is a resource in an SRS resource set used for beam management or a resource in an SRS resource set used for antenna selection; or,
when the UE is configured to be based on codebook transmission and does not configure SRS resources used for codebook transmission and SRS resources used for beam management, the SRI points to SRS resources in the set of SRS resources used for antenna selection; or,
when the UE is configured to be based on codebook transmission, not configured with SRS resources for codebook transmission and configured with SRS resources for beam management, the SRI points to the SRS resources within the set of SRS resources for beam management; or,
when the UE is configured to be based on non-codebook transmission and does not configure SRS resources for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources within the set of SRS resources for antenna selection; or,
when the UE is configured to be based on non-codebook transmission, and not configured with SRS resources for codebook transmission, and configured with SRS resources for beam management, the SRS resources pointed to by the SRI are resources within the set of SRS resources for beam management.
As can be seen from the foregoing embodiments, in this embodiment, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
Fig. 2 is a flowchart of a wireless communication method according to another embodiment of the present application, which is applied to a terminal device, and as shown in fig. 2, the method may include the following steps:
As can be seen from the foregoing embodiments, in this embodiment, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
Fig. 3 is a flowchart of a wireless communication method according to another embodiment of the present application, where in this embodiment of the present application, after receiving a DCI from a network device, a UE may further determine an SRS resource pointed to by an SRI in the DCI, so as to perform subsequent uplink data transmission, and as shown in fig. 3, the method may include the following steps:
In the embodiment of the application, the UE may perform resource numbering on resources in all SRS resource sets configured by the UE by using a numbering rule the same as that of the network device, so as to determine the unique SRS resource in the DCI, wherein the resource numbering is performed in sequence one by one according to the resources in all the sets; or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set. At this time, when receiving the DCI from the network device, the UE may determine, according to the resource number used for uniquely identifying the SRS resource included in the SRI in the DCI and the corresponding relationship between the resource number and the SRS resource, the SRS resource pointed by the SRI in the DCI.
In the embodiment of the application, the UE can determine the SRS resource pointed by the SRI in the DCI through a pre-agreed rule; specifically, the pre-agreed rules may include:
when the UE is not configured with SRS resources for codebook transmission and SRS resources for non-codebook transmission, the SRI points to the SRS resources within the set of SRS resources for beam management or within the set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are resources within the set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and configured for beam management, the SRS resource pointed to by the SRI is a resource within the set of SRS resources for beam management; or,
when the UE is configured with SRS resources based on non-codebook transmission and not configured for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are resources within the set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on non-codebook transmission and not configured for codebook transmission and SRS resources configured for beam management, the SRI points to SRS resources that are resources within the set of SRS resources for beam management.
In the embodiment of the application, the mapping relationship between the triggering state of the SRI in the DCI and the SRS resource pointed to by the SRI is determined by RRC layer signaling or MAC layer signaling. Specifically, the network device may configure a mapping relationship between a trigger state (trigger state) of an SRI in the DCI and an SRS resource pointed to by the SRI, and accordingly, when receiving the DCI from the network device, the UE may determine the SRS resource pointed to by the SRI in the DCI according to the trigger state of the SRI in the DCI and the mapping relationship between the trigger state of the SRI and the SRS resource pointed to by the SRI.
In the embodiment of the application, after determining the SRS resource to which the SRI in the DCI points, the UE may determine configuration information for analyzing the DCI according to the configuration corresponding to the SRS resource to which the SRI points, for example, determine the DCI domain size and meaning of the TPMI and the DCI domain size and meaning indicated by the port of the PTRS according to the number of the SRS ports; the DCI is analyzed according to the configuration information to obtain DCI information, and uplink data transmission is performed using the analyzed DCI information, for example, according to a beam indicated by the SRI.
As can be seen from the foregoing embodiments, in this embodiment, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
The foregoing description has been directed to specific embodiments of this disclosure. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing may also be possible or may be advantageous.
Fig. 4 is a schematic structural diagram of a wireless communication apparatus according to an embodiment of the present application, where the wireless communication apparatus is applied to a network device, and as shown in fig. 4, the wireless communication apparatus 400 may include: a first indicating unit 401 and a second indicating unit 402, wherein,
a first indicating unit 401, configured to indicate, when uplink data transmission of a terminal device UE is configured to be codebook-based transmission, that an SRS resource pointed to by an uplink sounding resource indicator SRI in DCI of the UE includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
a second indicating unit 402, configured to indicate, when uplink data transmission of the UE is configured to be non-codebook-based transmission, that an SRS resource pointed to by an SRI in the UE downlink control information DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
As can be seen from the foregoing embodiments, in this embodiment, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
Optionally, as an embodiment, the SRI includes a resource number for uniquely identifying the SRS resource, where a one-to-one correspondence exists between the SRI and the SRS resource.
Optionally, as an embodiment, the wireless communication apparatus 400 may further include:
a first numbering unit, configured to perform resource numbering on resources in all SRS resource sets configured for the UE, where the resource numbering is in sequence one by one according to the resources in all sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
Optionally, as an embodiment, the wireless communication apparatus 400 may further include:
a first configuration unit, configured to configure an SRS resource set and resources for the UE, and point to corresponding SRS resources using SRIs in the DCI according to a predetermined rule.
Optionally, as an embodiment, the pre-agreed rule may include:
when the SRS resource used for codebook transmission and the SRS resource used for non-codebook transmission are not configured, the SRS resource pointed by the SRI is a resource in an SRS resource set used for beam management or a resource in an SRS resource set used for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and is configured with SRS resources for beam management, the SRI points to SRS resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook based transmission and is not configured with SRS resources for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for non-codebook transmission, and is not configured with SRS resources for codebook transmission, and is configured with SRS resources for beam management, the SRI points to SRS resources within the set of SRS resources for beam management.
Optionally, as an embodiment, the wireless communication apparatus 400 may further include:
a second configuration unit, configured to configure, through at least one of radio resource control RRC layer signaling and medium access control MAC layer signaling, an SRS resource to which the SRI in the DCI points.
Fig. 5 is a schematic structural diagram of a wireless communication apparatus according to another embodiment of the present application, which is applied to a UE, and as shown in fig. 5, the wireless communication apparatus 500 may include: a receiving unit 501 for receiving, among other things,
a receiving unit 501, configured to receive DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
As can be seen from the foregoing embodiments, in this embodiment, when the UE is configured to codebook-based transmission or non-codebook-based transmission, uplink data transmission may be performed through SRS resources used for beam training or SRS resources used for antenna selection, so as to achieve the purpose of reducing SRS resource overhead.
Optionally, as an embodiment, the wireless communication apparatus 500 may further include:
and the determining unit is used for determining the SRS resource pointed by the SRI in the DCI according to at least one of a resource number which is contained in the SRI in the DCI and is used for uniquely identifying the SRS resource, a pre-agreed rule and a mapping relation between the triggering state of the SRI in the DCI and the SRS resource pointed by the SRI, wherein a one-to-one correspondence relation exists between the SRI and the SRS resource.
Optionally, as an embodiment, the wireless communication apparatus 500 may further include:
a second numbering unit, configured to perform resource numbering on resources in all SRS resource sets configured by the UE, where the resource numbering is in sequence one by one according to the resources in all sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
Optionally, as an embodiment, the pre-agreed rule may include:
when the UE is not configured with SRS resources for codebook transmission and SRS resources for non-codebook transmission, the SRI points to SRS resources within a set of SRS resources for beam management or within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and configured for beam management, the SRI points to SRS resources that are resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook transmission based on SRS resources not configured for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on non-codebook transmissions and not configured for codebook transmissions and with SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for beam management.
Optionally, as an embodiment, the mapping relationship between the trigger state of the SRI in the DCI and the SRS resource pointed to by the SRI is determined by RRC layer signaling or MAC layer signaling.
Fig. 6 is a schematic structural diagram of a network device according to an embodiment of the present application, and a schematic structural diagram of a physical apparatus of the network device 600 may be as shown in fig. 6, and includes a processor 602, a memory 603, a transmitter 601, and a receiver 604. In particular applications, transmitter 601 and receiver 604 may be coupled to an antenna 605.
The memory 603 stores programs. In particular, the program may include program code comprising computer operating instructions. Memory 603 may include both read-only memory and random access memory, and provides instructions and data to processor 602. The memory 603 may comprise a high-speed RAM memory, and may further comprise a non-volatile memory (e.g., at least 1 disk memory).
The processor 602 executes the program stored in the memory 603.
Specifically, in the network device 600, the processor 602 may execute the following method via the receiver 604 and the transmitter 601:
when uplink data transmission of terminal equipment (UE) is configured to be codebook-based transmission, indicating that an uplink Sounding Resource Indicator (SRI) in Downlink Control Information (DCI) of the UE points to an SRS resource comprises: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when the uplink data transmission of the UE is configured to be based on non-codebook transmission, indicating that the SRS resource pointed by the SRI in the downlink control information DCI of the UE comprises: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
The method performed by the network device 600 according to the embodiment shown in fig. 1 of the present application can be applied to the processor 602, or implemented by the processor 602. The processor 602 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 602. The Processor 602 may be a general-purpose Processor, and includes a Central Processing Unit (CPU), a Network Processor (NP), and the like; but may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in the memory 603, and the processor 602 reads the information in the memory 603 and performs the steps of the above method in combination with the hardware thereof.
The network device may also execute the method shown in fig. 1 and implement the functions of the network device in the embodiment shown in fig. 1, which are not described herein again in this embodiment of the present application.
Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present application, where the terminal device 700 shown in fig. 7 includes: at least one processor 701, a memory 702, at least one network interface 704, and a user interface 703. The various components in the terminal device 700 are coupled together by a bus system 705. It is understood that the bus system 705 is used to enable communications among the components. The bus system 705 includes a power bus, a control bus, and a status signal bus in addition to a data bus. But for clarity of illustration the various busses are labeled in figure 7 as the bus system 705.
The user interface 703 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen).
It will be appreciated that the memory 702 in the subject embodiment can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM ), Enhanced Synchronous DRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 702 of the systems and methods described in embodiments herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 702 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 7021 and application programs 7022.
The operating system 7021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 7022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. A program for implementing the methods according to embodiments of the present application may be included in application 7022.
In this embodiment of the present application, the terminal device 700 further includes: a computer program stored on the memory 702 and executable on the processor 701, the computer program when executed by the processor 701 performing the steps of:
receiving DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
The method disclosed in the embodiments of the present application may be applied to the processor 701, or implemented by the processor 701. The processor 701 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be implemented by integrated logic circuits of hardware or instructions in the form of software in the processor 701. The processor 701 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 702, and the processor 701 reads the information in the memory 702, and performs the steps of the above method in combination with the hardware thereof. In particular, the computer readable storage medium has stored thereon a computer program, which when executed by the processor 701 implements the steps of the wireless communication method embodiments as described above.
It is to be understood that the embodiments described in connection with the embodiments disclosed herein may be implemented by hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described in this application may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this application. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
Furthermore, the computer program, when executed by the processor 701, may further implement the steps of:
optionally, as an embodiment, the method further includes:
and determining the SRS resource pointed by the SRI in the DCI according to at least one of a resource number used for uniquely identifying the SRS resource, a preset rule and a mapping relation between the triggering state of the SRI in the DCI and the SRS resource pointed by the SRI, wherein the SRI and the SRS resource have a one-to-one correspondence relation.
Optionally, as an embodiment, the method further includes:
carrying out resource numbering on resources in all SRS resource sets configured by the UE, wherein the resource numbering is carried out in sequence one by one according to the resources in all the sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
Optionally, as an embodiment, the pre-agreed rule includes:
when the UE is not configured with SRS resources for codebook transmission and SRS resources for non-codebook transmission, the SRI points to SRS resources within a set of SRS resources for beam management or within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and configured for beam management, the SRI points to SRS resources that are resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook transmission based on SRS resources not configured for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on non-codebook transmissions and not configured for codebook transmissions and with SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for beam management.
Optionally, as an embodiment, the mapping relationship between the trigger state of the SRI in the DCI and the SRS resource pointed to by the SRI is determined by RRC layer signaling or MAC layer signaling.
The terminal device 700 can implement each process implemented by the terminal device in the foregoing embodiments, and details are not described here to avoid repetition.
An embodiment of the present application further provides a computer-readable storage medium, on which a wireless communication program is stored, and when the wireless communication program is executed by a processor, the wireless communication program enables a network device to perform the method of the embodiment shown in fig. 1, and is specifically configured to perform the following operations:
when uplink data transmission of terminal equipment (UE) is configured to be codebook-based transmission, indicating that an uplink Sounding Resource Indicator (SRI) in Downlink Control Information (DCI) of the UE points to an SRS resource comprises: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when the uplink data transmission of the UE is configured to be based on non-codebook transmission, indicating that the SRS resource pointed by the SRI in the downlink control information DCI of the UE comprises: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
An embodiment of the present application further provides a computer-readable storage medium, on which a wireless communication program is stored, and when the wireless communication program is executed by a processor, the wireless communication program enables a terminal device to perform the method of the embodiment shown in fig. 2, and is specifically configured to perform the following operations:
receiving DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection or resources in an SRS resource set for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
In short, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
The systems, devices, modules or units illustrated in the above embodiments may be implemented by a computer chip or an entity, or by a product with certain functions. One typical implementation device is a computer. In particular, the computer may be, for example, a personal computer, a laptop computer, a cellular telephone, a camera phone, a smartphone, a personal digital assistant, a media player, a navigation device, an email device, a game console, a tablet computer, a wearable device, or a combination of any of these devices.
Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
Claims (26)
1. A wireless communication method applied to a network device, the method comprising:
when uplink data transmission of terminal equipment (UE) is configured to be codebook-based transmission, indicating that an uplink Sounding Resource Indicator (SRI) in Downlink Control Information (DCI) of the UE points to an SRS resource comprises: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection, or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when the uplink data transmission of the UE is configured to be based on non-codebook transmission, indicating that the SRS resource pointed by the SRI in the downlink control information DCI of the UE comprises: and pre-configuring resources in an SRS resource set used for beam training, resources in an SRS resource set used for antenna selection, or resources in an SRS resource set used for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
2. The method of claim 1, wherein the SRI comprises a resource number for uniquely identifying SRS resources, and wherein there is a one-to-one correspondence between SRI and SRS resources.
3. The method of claim 2, further comprising:
carrying out resource numbering on resources in all SRS resource sets configured for the UE, wherein the resource numbering is carried out in sequence one by one according to the resources in all the sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
4. The method of claim 1, further comprising:
and configuring an SRS resource set and resources for the UE, and pointing to the corresponding SRS resource by using the SRI in the DCI according to a pre-agreed rule.
5. The method of claim 4, wherein the pre-agreed rules include:
when the SRS resource used for codebook transmission and the SRS resource used for non-codebook transmission are not configured, the SRS resource pointed by the SRI is a resource in an SRS resource set used for beam management or a resource in an SRS resource set used for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and is configured with SRS resources for beam management, the SRI points to SRS resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook based transmission and is not configured with SRS resources for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for non-codebook transmission, and is not configured with SRS resources for codebook transmission, and is configured with SRS resources for beam management, the SRI points to SRS resources within the set of SRS resources for beam management.
6. The method of claim 1, further comprising:
and configuring SRS resources pointed by the SRI in the DCI through at least one of Radio Resource Control (RRC) layer signaling and Medium Access Control (MAC) layer signaling.
7. A wireless communication method applied to a UE (user equipment), the method comprising:
receiving DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection, or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set used for beam training, resources in an SRS resource set used for antenna selection, or resources in an SRS resource set used for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
8. The method of claim 7, further comprising:
and determining the SRS resource pointed by the SRI in the DCI according to at least one of a resource number used for uniquely identifying the SRS resource, a preset rule and a mapping relation between the triggering state of the SRI in the DCI and the SRS resource pointed by the SRI, wherein the SRI and the SRS resource have a one-to-one correspondence relation.
9. The method of claim 8, further comprising:
carrying out resource numbering on resources in all SRS resource sets configured by the UE, wherein the resource numbering is carried out in sequence one by one according to the resources in all the sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
10. The method of claim 8, wherein the pre-agreed rules include:
when the UE is not configured with SRS resources for codebook transmission and SRS resources for non-codebook transmission, the SRI points to SRS resources within a set of SRS resources for beam management or within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and configured for beam management, the SRI points to SRS resources that are resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook transmission based on SRS resources not configured for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on non-codebook transmissions and not configured for codebook transmissions and with SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for beam management.
11. The method of claim 8, wherein a mapping relationship between the trigger state of the SRI in the DCI and the SRS resource pointed to by the SRI is determined by RRC layer signaling or MAC layer signaling.
12. A wireless communication apparatus, applied to a network device, the apparatus comprising:
a first indication unit, configured to indicate, when uplink data transmission of a terminal device UE is configured to be codebook-based transmission, that an SRS resource pointed to by an uplink sounding resource indicator SRI in DCI of the UE downlink control information includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection, or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
a second indicating unit, configured to indicate, when uplink data transmission of the UE is configured to be non-codebook-based transmission, that an SRS resource pointed to by an SRI in the DCI includes: and pre-configuring resources in an SRS resource set used for beam training, resources in an SRS resource set used for antenna selection, or resources in an SRS resource set used for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
13. The apparatus of claim 12, wherein the SRI comprises a resource number for uniquely identifying SRS resources, and wherein there is a one-to-one correspondence between SRI and SRS resources.
14. The apparatus of claim 13, further comprising:
a first numbering unit, configured to perform resource numbering on resources in all SRS resource sets configured for the UE, where the resource numbering is in sequence one by one according to the resources in all sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
15. The apparatus of claim 12, further comprising:
a first configuration unit, configured to configure an SRS resource set and resources for the UE, and point to corresponding SRS resources using SRIs in the DCI according to a predetermined rule.
16. The apparatus of claim 15, wherein the pre-agreed rules include:
when the SRS resource used for codebook transmission and the SRS resource used for non-codebook transmission are not configured, the SRS resource pointed by the SRI is a resource in an SRS resource set used for beam management or a resource in an SRS resource set used for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and is configured with SRS resources for beam management, the SRI points to SRS resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook based transmission and is not configured with SRS resources for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured for non-codebook transmission, and is not configured with SRS resources for codebook transmission, and is configured with SRS resources for beam management, the SRI points to SRS resources within the set of SRS resources for beam management.
17. The apparatus of claim 12, further comprising:
a second configuration unit, configured to configure, through at least one of radio resource control RRC layer signaling and medium access control MAC layer signaling, an SRS resource to which the SRI in the DCI points.
18. A wireless communication apparatus, applied to a UE, the apparatus comprising:
a receiving unit configured to receive DCI from a network device;
when uplink data transmission of the UE is configured to be codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: pre-configuring resources in an SRS resource set for beam training, resources in an SRS resource set for antenna selection, or resources in an SRS resource set for non-codebook transmission, wherein the UE performs codebook-based uplink data transmission based on the indicated SRI;
when uplink data transmission of the UE is configured to be non-codebook-based transmission, the SRS resource pointed to by the SRI included in the DCI includes: and pre-configuring resources in an SRS resource set used for beam training, resources in an SRS resource set used for antenna selection, or resources in an SRS resource set used for codebook transmission, wherein the UE performs non-codebook-based uplink data transmission based on the indicated SRI.
19. The apparatus of claim 18, further comprising:
and the determining unit is used for determining the SRS resource pointed by the SRI in the DCI according to at least one of a resource number which is contained in the SRI in the DCI and is used for uniquely identifying the SRS resource, a pre-agreed rule and a mapping relation between the triggering state of the SRI in the DCI and the SRS resource pointed by the SRI, wherein a one-to-one correspondence relation exists between the SRI and the SRS resource.
20. The apparatus of claim 19, further comprising:
a second numbering unit, configured to perform resource numbering on resources in all SRS resource sets configured by the UE, where the resource numbering is in sequence one by one according to the resources in all sets;
or the resource number is composed of a first part and a second part, the first part is used for pointing to the resource set, and the second part is used for pointing to the resource in the resource set.
21. The apparatus of claim 19, wherein the pre-agreed rules include:
when the UE is not configured with SRS resources for codebook transmission and SRS resources for non-codebook transmission, the SRI points to SRS resources within a set of SRS resources for beam management or within a set of SRS resources for antenna selection; or,
when the UE is configured for codebook-based transmission and is not configured with SRS resources for codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on codebook transmission and not configured for codebook transmission and configured for beam management, the SRI points to SRS resources that are resources within a set of SRS resources for beam management; or,
when the UE is configured for non-codebook transmission based on SRS resources not configured for non-codebook transmission and SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for antenna selection; or,
when the UE is configured with SRS resources based on non-codebook transmissions and not configured for codebook transmissions and with SRS resources for beam management, the SRI points to SRS resources that are within a set of SRS resources for beam management.
22. The apparatus of claim 18, wherein a mapping relationship between the trigger state of the SRI in the DCI and the SRS resource pointed to by the SRI is determined by RRC layer signaling or MAC layer signaling.
23. A network device, characterized in that the network device comprises: a processor, a memory and a wireless communication program stored on the memory and executable on the processor, the wireless communication program when executed by the processor implementing the steps of the wireless communication method according to any of claims 1 to 6.
24. A computer-readable storage medium, on which a wireless communication program is stored, which when executed by a processor implements the steps of the wireless communication method according to any one of claims 1 to 6.
25. A terminal device, characterized in that the terminal device comprises: a processor, a memory and a wireless communication program stored on the memory and executable on the processor, the wireless communication program when executed by the processor implementing the steps of the wireless communication method according to any of claims 7 to 11.
26. A computer-readable storage medium, on which a wireless communication program is stored, which when executed by a processor implements the steps of the wireless communication method according to any one of claims 7 to 11.
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Families Citing this family (7)
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|---|---|---|---|---|
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| WO2021159493A1 (en) * | 2020-02-14 | 2021-08-19 | 华为技术有限公司 | Resource configuration method and apparatus |
| CN113597001A (en) * | 2020-04-30 | 2021-11-02 | 华为技术有限公司 | Signal receiving method, signal sending method and corresponding devices |
| CN116097601A (en) * | 2020-08-05 | 2023-05-09 | 苹果公司 | NR MIMO operation enhancement |
| WO2022047615A1 (en) * | 2020-09-01 | 2022-03-10 | Qualcomm Incorporated | Media access control (mac) control element (ce) based activation for user equipment (ue) initiated reference signal requests |
| WO2022227052A1 (en) * | 2021-04-30 | 2022-11-03 | 富士通株式会社 | Wireless communication method, apparatus and system |
| CN116419382A (en) * | 2021-12-31 | 2023-07-11 | 华为技术有限公司 | Uplink precoding method and device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940752A (en) * | 2014-01-31 | 2016-09-14 | 索尼公司 | Communications device and methods |
| WO2016162174A1 (en) * | 2015-04-10 | 2016-10-13 | Sony Corporation | Infrastructure equipment, communications device and methods |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9893859B2 (en) * | 2007-10-30 | 2018-02-13 | Texas Instruments Incorporated | Transmission of sounding reference signal and scheduling request in single carrier systems |
-
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105940752A (en) * | 2014-01-31 | 2016-09-14 | 索尼公司 | Communications device and methods |
| WO2016162174A1 (en) * | 2015-04-10 | 2016-10-13 | Sony Corporation | Infrastructure equipment, communications device and methods |
Non-Patent Citations (1)
| Title |
|---|
| Remaining details on SRS;MediaTek Inc.;《3GPP TSG RAN WG1 NR Ad Hoc R1-1716216》;20170921;全文 * |
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