CN117014101A - Information receiving method, information transmitting method and related equipment - Google Patents
Information receiving method, information transmitting method and related equipment Download PDFInfo
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Abstract
The application discloses an information receiving method, an information sending method and related equipment, which belong to the technical field of communication, and the information receiving method of the embodiment of the application comprises the following steps: the terminal receives Downlink Control Information (DCI) sent by network side equipment and/or target configuration information; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to an information receiving method, an information sending method and related equipment.
Background
The uplink transmission of the mobile communication system supports two uplink transmission waveforms, namely a discrete fourier transform spread orthogonal frequency division multiplexing (Discrete Fourier Transform-s-Orthogonal frequency division multiplex, DFT-s-OFDM) waveform and a Cyclic prefix-carrying orthogonal frequency division multiplexing (CP-OFDM) waveform. At present, uplink transmission waveforms of uplink transmission of a terminal are preconfigured, and flexibility is poor.
Disclosure of Invention
The embodiment of the application provides an information receiving method, an information sending method and related equipment, which can solve the problems that uplink transmission waveforms of uplink transmission of a terminal are preconfigured and the flexibility is poor.
In a first aspect, there is provided an information receiving method, including:
the terminal receives Downlink Control Information (DCI) sent by network side equipment and/or target configuration information;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a second aspect, there is provided an information transmission method including:
the network side equipment sends downlink control information DCI and/or target configuration information to the terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a third aspect, there is provided an information receiving apparatus including:
the receiving module is used for receiving Downlink Control Information (DCI) sent by the network side equipment and/or target configuration information;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a fourth aspect, there is provided an information transmitting apparatus including:
a sending module, configured to send downlink control information DCI and/or target configuration information to a terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a fifth aspect, there is provided a terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the first aspect.
A sixth aspect provides a terminal, including a processor and a communication interface, where the communication interface is configured to receive downlink control information DCI sent by a network side device and/or target configuration information; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a seventh aspect, a network side device is provided, comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the method as described in the second aspect.
In an eighth aspect, a network side device is provided, including a processor and a communication interface, where the communication interface is configured to: transmitting downlink control information DCI and/or target configuration information to a terminal; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
In a ninth aspect, there is provided an information transceiving system, comprising: a terminal and a network side device, the terminal being operable to perform the steps of the information receiving method as described in the first aspect, the network side device being operable to perform the steps of the information sending method as described in the second aspect.
In a tenth aspect, there is provided a readable storage medium having stored thereon a program or instructions which when executed by a processor, performs the steps of the method according to the first aspect or performs the steps of the method according to the second aspect.
In an eleventh aspect, there is provided a chip comprising a processor and a communication interface coupled to the processor, the processor being for running a program or instructions to implement the method according to the first aspect or to implement the method according to the second aspect.
In a twelfth aspect, there is provided a computer program/program product stored in a storage medium, the computer program/program product being executed by at least one processor to implement the steps of the information receiving method as described in the first aspect, or to implement the steps of the information transmitting method as described in the second aspect.
In the embodiment of the application, a terminal receives Downlink Control Information (DCI) sent by network side equipment and/or target configuration information; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission. In this way, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the DCI under the multi-TRP transmission, or determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is high.
Drawings
Fig. 1 is a block diagram of a wireless communication system to which embodiments of the present application are applicable;
fig. 2 is a flowchart of an information receiving method according to an embodiment of the present application;
fig. 3 is a flowchart of an information sending method provided in an embodiment of the present application;
fig. 4 is a schematic structural diagram of an information receiving apparatus according to an embodiment of the present application;
Fig. 5 is a schematic structural diagram of an information sending device according to an embodiment of the present application;
fig. 6 is a block diagram of a communication device according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of a network side device according to an embodiment of the present application.
Detailed Description
The technical solutions of the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the application, fall within the scope of protection of the application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application are capable of operation in sequences other than those illustrated or otherwise described herein, and that the "first" and "second" distinguishing between objects generally are not limited in number to the extent that the first object may, for example, be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/" generally means a relationship in which the associated object is an "or" before and after.
It should be noted that the techniques described in the embodiments of the present application are not limited to long term evolution (Long Term Evolution, LTE)/LTE evolution (LTE-Advanced, LTE-a) systems, but may also be used in other wireless communication systems, such as code division multiple access (Code Division Multiple Access, CDMA), time division multiple access (Time Division Multiple Access, TDMA), frequency division multiple access (Frequency Division Multiple Access, FDMA), orthogonal frequency division multiple access (Orthogonal Frequency Division Multiple Access, OFDMA), single carrier frequency division multiple access (Single-carrier Frequency Division Multiple Access, SC-FDMA), and other systems. The terms "system" and "network" in embodiments of the application are often used interchangeably, and the techniques described may be used for both the above-mentioned systems and radio technologies, as well as other systems and radio technologies. The following description describes a New air interface (NR) system for purposes of example and uses NR terminology in much of the description that follows, but these techniques are also applicable to applications other than NR system applications, such as generation 6 (6) th Generation, 6G) communication system.
Fig. 1 shows a block diagram of a wireless communication system to which an embodiment of the present application is applicable. The wireless communication system includes a terminal 11 and a network device 12. The terminal 11 may be a mobile phone, a tablet (Tablet Personal Computer), a Laptop (Laptop Computer) or a terminal-side Device called a notebook, a personal digital assistant (Personal Digital Assistant, PDA), a palm top, a netbook, an ultra-mobile personal Computer (ultra-mobile personal Computer, UMPC), a mobile internet appliance (Mobile Internet Device, MID), an augmented reality (augmented reality, AR)/Virtual Reality (VR) Device, a robot, a Wearable Device (weather Device), a vehicle-mounted Device (VUE), a pedestrian terminal (PUE), a smart home (home Device with a wireless communication function, such as a refrigerator, a television, a washing machine, or a furniture), a game machine, a personal Computer (personal Computer, PC), a teller machine, or a self-service machine, and the Wearable Device includes: intelligent wrist-watch, intelligent bracelet, intelligent earphone, intelligent glasses, intelligent ornament (intelligent bracelet, intelligent ring, intelligent necklace, intelligent anklet, intelligent foot chain etc.), intelligent wrist strap, intelligent clothing etc.. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application. The network-side device 12 may comprise an access network device or a core network device, wherein the access network device 12 may also be referred to as a radio access network device, a radio access network (Radio Access Network, RAN), a radio access network function or a radio access network element. Access network device 12 may include a base station, a WLAN access point, a WiFi node, or the like, which may be referred to as a node B, an evolved node B (eNB), an access point, a base transceiver station (Base Transceiver Station, BTS), a radio base station, a radio transceiver, a basic service set (Basic Service Set, BSS), an extended service set (Extended Service Set, ESS), a home node B, a home evolved node B, a transmission and reception point (Transmitting Receiving Point, TRP), or some other suitable terminology in the art, and the base station is not limited to a particular technical vocabulary so long as the same technical effect is achieved, and it should be noted that in the embodiment of the present application, only a base station in the NR system is described as an example, and the specific type of the base station is not limited. The core network device may include, but is not limited to, at least one of: core network nodes, core network functions, mobility management entities (Mobility Management Entity, MME), access mobility management functions (Access and Mobility Management Function, AMF), session management functions (Session Management Function, SMF), user plane functions (User Plane Function, UPF), policy control functions (Policy Control Function, PCF), policy and charging rules function units (Policy and Charging Rules Function, PCRF), edge application service discovery functions (Edge Application Server Discovery Function, EASDF), unified data management (Unified Data Management, UDM), unified data repository (Unified Data Repository, UDR), home subscriber server (Home Subscriber Server, HSS), centralized network configuration (Centralized network configuration, CNC), network storage functions (Network Repository Function, NRF), network opening functions (Network Exposure Function, NEF), local NEF (or L-NEF), binding support functions (Binding Support Function, BSF), application functions (Application Function, AF), and the like. It should be noted that, in the embodiment of the present application, only the core network device in the NR system is described as an example, and the specific type of the core network device is not limited.
The information receiving method, the information sending method and the related devices provided by the embodiment of the application are described in detail below through some embodiments and application scenes thereof with reference to the accompanying drawings.
Referring to fig. 2, fig. 2 is a flowchart of an information receiving method according to an embodiment of the present application, and as shown in fig. 2, the information receiving method includes the following steps:
step 101, a terminal receives downlink control information (Downlink Control Information, DCI) sent by network side equipment and/or target configuration information;
wherein the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multiple transmission and reception points (Transmission Reception Point, TRP) transmission;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier (Physical Cell Identifier, PCI) under multi-TRP transmission.
In one embodiment, the network side device may explicitly or implicitly indicate an uplink transmission waveform under a multi-TRP (mTRP) transmission through DCI.
In one embodiment, the network side device may explicitly or implicitly indicate whether to switch the uplink transmission waveform under the multi-TRP transmission through DCI.
In one embodiment, the network side device may explicitly indicate the uplink transmission waveform through one or more information fields in the DCI, or whether to switch the uplink transmission waveform.
It should be understood that, DCI is dynamic control signaling, and by determining whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission, dynamic switching of an uplink transmission waveform of uplink transmission by a terminal can be implemented, and flexibility is high, compared with static or semi-static configuration of an uplink transmission waveform.
It should be understood that the target configuration information may be configuration information of a reference signal, and different reference signals may be indicated by switching of different TRPs, so that dynamic switching of uplink transmission waveforms for uplink transmission by the terminal is implemented through configuration information of different reference signals, and flexibility is high.
It should be understood that the target configuration information may be configuration information corresponding to the PCI in the multi-TRP transmission, and the dynamic switching of the uplink transmission waveform of the uplink transmission can be implemented by the terminal through different PCIs, which has higher flexibility.
As an example, the target configuration information may be used to configure whether an uplink transmission waveform or an uplink transmission waveform applied to an uplink channel associated with the RS is switched or whether an uplink transmission waveform or an uplink transmission waveform applied to an uplink channel associated with the sounding Reference Signal (Sounding Reference Signal, SRS) is switched in a Reference Signal (RS) resource (resource) or resource set (resource set) configuration corresponding to the TRP.
It should be appreciated that in embodiments of the present application, the RS may characterize the RS signal itself, and/or may characterize the RS resources; the SRS may characterize the SRS signal itself, and/or may characterize SRS resources.
The NR system supports downlink multi-TRP transmission, and includes a transmission method based on single DCI (S-DCI) and a transmission method based on multi-DCI (M-DCI), where the transmission method includes methods such as space division multiplexing (Space Division Multiplexing, SDM), frequency division multiplexing (Frequency division multiplex, FDM), time division multiplexing (Time division multiplexing, TDM), and single frequency repeated transmission (SFN). The transmission based on multiple DCIs is based on the assumption that link delays among multiple TRPs are large and cannot be interacted in real time. The NR system supports uplink multi-TRP transmission and also supports transmission methods based on single DCI and multiple DCIs. The NR system also instructs the uplink beam switch transmission and the uplink beam switch mode to be configured by radio resource control (Radio Resource Control, RRC) signaling. There are three ways of uplink beam switching: the two beams are alternately switched (namely, the first beam and the second beam are alternately switched), the two beams are alternately switched (namely, the first beam is sent 2 times and the second beam is sent 2 times), and half of the beams are switched (namely, the first half of the first beam and the second half of the second beam are used). In a single DCI (S-DCI) transmission method, the DCI may include 2 transmission precoding matrix indicator (Transmitted precoding matrix indicator, TPMI) fields and 2 SRS resource indicator (SRS resource indicator, SRI) fields, where the directions of uplink physical uplink shared channel (Physical Uplink Shared Channel, PUSCH) transmission are indicated by the 2 SRIs, that is, one SRI field corresponds to a first TRP transmission and the other SRI field corresponds to a second TRP transmission.
In the related art, two waveforms are supported by the NR system uplink, and are respectively: DFT-s-OFDM waveform and CP-OFDM waveform, DFT-s-OFDM waveform is single carrier wave waveform, CP-OFDM waveform is multi-carrier wave waveform, up-line transmission waveform can be configured by RRC signaling, configured up-line transmission waveform can not be changed dynamically, flexibility is poor.
In the embodiment of the application, a terminal receives Downlink Control Information (DCI) sent by network side equipment and/or target configuration information; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission. In this way, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the DCI under the multi-TRP transmission, or determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is high.
Optionally, the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
In one embodiment, the DCI may be used to indicate an uplink transmission waveform as a first waveform or a second waveform.
The first waveform may be a discrete fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform and the second waveform may be an orthogonal frequency division multiplexing CP-OFDM waveform with a cyclic prefix.
In one embodiment, the DCI may be used to indicate switching of an uplink transmission waveform or not switching of an uplink transmission waveform.
In one embodiment, the DCI may be used to instruct switching of an uplink transmission waveform using a first waveform switching mode or not switching of an uplink transmission waveform.
The first waveform switching mode may be alternate beam switching, or alternate beam switching of two beams, or half-half beam switching.
In one embodiment, the DCI may be used to instruct switching of the uplink transmission waveform in the second waveform switching manner or not switching of the uplink transmission waveform.
In one embodiment, the DCI may be used to instruct switching of an uplink transmission waveform using a first waveform switching mode or a second waveform switching mode, or not switching of an uplink transmission waveform.
The first waveform switching manner may be: the first transmission uses a first waveform, the second transmission uses a second waveform, the third transmission uses a first waveform, the fourth transmission uses a second waveform, and so on.
The second waveform switching method may be: in N uplink transmissions corresponding to the multi-TRP transmission, the first N/2 times adopts a first waveform, and the second N/2 times adopts a second waveform.
Optionally, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
In this embodiment, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under the multi-TRP transmission in the TDM manner, so that, under the multi-TRP transmission in the TDM manner, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the DCI, and can realize dynamic switching of the uplink transmission waveform of uplink transmission by the terminal, which has high flexibility.
Optionally, the DCI includes at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
A third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
The multiple uplink transmissions corresponding to the multi-TRP transmission may be N uplink transmissions corresponding to the multi-TRP transmission, where N is a positive integer greater than 1.
In addition, the first indication information may be 1bit (bit) or more than one bit of indication information. When determining an uplink transmission waveform from only two waveforms, 1bit of first indication information may be employed; when determining an uplink transmission waveform from among three or more waveforms, the first indication information of more than 1bit may be employed. Taking 1bit first indication information as an example, the 1bit first indication information may be used to characterize two states. For example, one state of the first indication information is used to indicate a first waveform, and the other state of the first indication information is used to indicate a second waveform, and the terminal uses the waveform indicated by the first indication information as an uplink transmission waveform in the plurality of uplink transmissions corresponding to the multi-TRP transmission. For example, the terminal adopts the waveform indicated by the first indication information in N uplink transmissions.
In addition, the second indication information may be 1bit (bit) or more than one bit of indication information. When the uplink transmission waveform is determined from only two waveforms, 1-bit second indication information may be employed; when determining the uplink transmission waveform from among three or more waveforms, the second indication information of more than 1bit may be employed. Taking the 1bit second indication information as an example, the 1bit second indication information may be used to characterize two states. For example, one state of the second indication information is used to indicate switching of an uplink transmission waveform, and the other state of the second indication information is used to indicate non-switching of an uplink transmission waveform, and the terminal switches or does not switch the uplink transmission waveform based on the indication of the second indication information in the plurality of uplink transmissions corresponding to the multi-TRP transmission. For example, the terminal switches or does not switch the uplink transmission waveform based on the indication of the second indication information in N uplink transmissions.
In addition, the third indication information may be 1bit (bit) or more than one bit of indication information. When there are only two switching modes of the uplink transmission waveform, the third indication information of 1bit can be adopted; when there are three or more switching modes of the uplink transmission waveform, the third indication information greater than 1bit may be used. Taking the third indication information of 1bit as an example, the third indication information of 1bit can be used to characterize two states. For example, a state of the third indication information is used to indicate a rotation waveform switching manner of the uplink transmissions corresponding to the multi-TRP transmission; another state of the third indication information is used to indicate that the uplink transmission waveform is not switched when the multiple TRP transmission corresponds to the multiple uplink transmission, that is, the same waveform is adopted when the multiple TRP transmission corresponds to the multiple uplink transmission, and the adopted same waveform may be pre-agreed, or determined according to other information, for example: the transmission modulation and coding scheme (Modulation and coding scheme, MCS) or rank (rank), or by RRC configuration. The alternate waveform switching manner indicated by the third indication information may be: the first transmission adopts a first waveform, the second transmission adopts a second waveform, the third transmission adopts a first waveform, the fourth transmission adopts a second waveform, and the like; alternatively, the alternate waveform switching manner indicated by the third indication information may be: in N uplink transmissions corresponding to the multi-TRP transmission, the first waveform is adopted for the first N/2 times, the second waveform is adopted for the last N/2 times, if N is not even, the first N/2 is rounded up and the last N/2 is rounded down, or the first N/2 is rounded down and the last N/2 is rounded up.
In addition, the number of bits of the fourth indication information may be equal to the number of TRPs, and an uplink transmission waveform of each bit in the fourth indication information for indicating one TRP transmission is the first waveform or the second waveform.
The first waveform may be a discrete fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform and the second waveform may be an orthogonal frequency division multiplexing CP-OFDM waveform with a cyclic prefix.
In addition, in this embodiment, the number of DCIs may be one, and uplink transmission waveforms for multiple TRP uplink transmissions are determined by a single DCI.
It should be noted that, if the uplink beam switching is configured, the uplink transmission waveform switching and the uplink beam switching may be used in combination, for example, when the DCI indicates the uplink beam switching and is configured in a certain beam switching manner, the first waveform may be corresponding to the first beam, the second waveform may be corresponding to the second beam, and the uplink transmission waveform is switched by switching the beams.
Considering that different TRPs or different beams (beams) may correspond to different Power Amplifier (PA) requirements under different network application scenarios. The embodiment of the application provides a waveform switching method for corresponding transmission of different TRPs or beams, so that the corresponding transmission of the different TRPs or beams can use different waveforms, or the corresponding transmission of the different types of TRPs or beams can use different waveforms.
In this embodiment, the first indication information terminal can determine uplink transmission waveforms of the plurality of uplink transmissions corresponding to the multi-TRP transmission, the second indication information terminal can determine whether or not the plurality of uplink transmissions corresponding to the multi-TRP transmission are to be switched, the third indication information terminal can determine a switching manner of the plurality of uplink transmission waveforms of the plurality of uplink transmissions corresponding to the multi-TRP transmission, and the fourth indication information terminal can determine uplink transmission waveforms corresponding to each of the multi-TRP transmission.
Optionally, in the multi-TRP transmission of the frequency division multiplexing FDM mode or the space division multiplexing SDM mode, uplink transmission waveforms of the plurality of uplink transmissions corresponding to the multi-TRP transmission are the same.
Optionally, the number of DCIs is plural, and each DCI in the plurality of DCIs is used to schedule one uplink transmission.
In this embodiment, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform by using the plurality of DCIs under the multi-TRP transmission, so that the terminal can dynamically switch the uplink transmission waveform of the uplink transmission, and the flexibility is high.
Optionally, when the uplink transmissions scheduled by the plurality of DCIs are sent at different times, a first DCI is used to determine an uplink transmission waveform of the uplink transmission corresponding to the first DCI, where the first DCI is any one of the plurality of DCIs.
The uplink transmission scheduled by the DCI may be a PUSCH scheduled by the DCI. The uplink transmission waveform of the uplink transmission corresponding to the DCI may be an uplink transmission waveform corresponding to the PUSCH scheduled by the DCI.
For example, taking 2 DCIs as an example, 2 DCIs are used as the plurality of DCIs, 2 independent PUSCHs are scheduled by the 2 DCIs, and when the scheduled 2 PUSCHs are transmitted at different times, the uplink transmission waveform corresponding to each PUSCH is determined according to the manner indicated in the respective DCIs.
In this embodiment, when the plurality of DCI scheduled uplink transmissions are transmitted at different times, the first DCI is used to determine an uplink transmission waveform of the uplink transmission corresponding to the first DCI, so that the uplink transmission waveform of the DCI scheduled uplink transmission can be determined by each of the plurality of DCIs.
Optionally, in a case where the plurality of DCI scheduled uplink transmissions are transmitted at the same time, the method further includes at least one of:
the terminal determines an uplink transmission waveform of uplink transmission corresponding to second DCI according to the second DCI, wherein the second DCI is any one of the plurality of DCIs;
the terminal only transmits uplink transmission corresponding to a first uplink transmission waveform, wherein the first uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCI;
And the terminal adopts a second uplink transmission waveform to transmit the uplink transmissions scheduled by the DCIs, wherein the second uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCIs.
The first uplink transmission waveform may be specified by a protocol, or configured by a network side device. The second uplink transmission waveform may be specified by a protocol or configured by a network side device.
In addition, the terminal may also instruct the network side device about an uplink transmission waveform used for uplink transmission. Under the condition that the terminal only sends uplink transmission corresponding to a first uplink transmission waveform, the terminal indicates the first uplink transmission waveform to network side equipment; and under the condition that the terminal adopts a second uplink transmission waveform to send a plurality of uplink transmissions scheduled by the DCI, the terminal indicates the second uplink transmission waveform to network side equipment.
For example, taking 2 DCIs as an example of the plurality of DCIs, 2 DCIs schedule 2 independent PUSCHs, and when the scheduled 2 PUSCHs are transmitted at the same time, the terminal performs any one of the following:
the terminal determines an uplink transmission waveform corresponding to each PUSCH according to the DCI corresponding to the PUSCH;
The terminal only transmits uplink transmission corresponding to one of the waveforms, for example, the terminal only transmits PUSCH corresponding to DFT-s-OFDM waveform, and does not transmit PUSCH corresponding to CP-OFDM waveform;
the terminal transmits 2 PUSCHs using one waveform, for example, the terminal transmits 2 PUSCHs using a DFT-s-OFDM waveform.
In this embodiment, when the uplink transmissions scheduled by the plurality of DCIs are transmitted at the same time, the terminal determines, according to the second DCI, an uplink transmission waveform of the uplink transmission corresponding to the second DCI; and/or, the terminal only sends the uplink transmission corresponding to the first uplink transmission waveform; and/or, the terminal adopts a second uplink transmission waveform to transmit the plurality of uplink transmissions scheduled by the plurality of DCIs. In this way, the terminal can determine uplink transmission waveforms through a plurality of DCIs under multi-TRP transmission, and can realize dynamic switching of uplink transmission waveforms of uplink transmission by the terminal, so that the flexibility is high.
Optionally, the determining manner of the first uplink transmission waveform and/or the second uplink transmission waveform is any one of the following:
specified by a protocol;
configured by the network side equipment.
Optionally, the target configuration information is configuration information of a reference signal corresponding to the TRP.
The target configuration information may be configuration information of a reference signal corresponding to a single (TRP) TRP; alternatively, the configuration information may be configuration information of a reference signal corresponding to a TRP under a multi TRP (mTRP).
In this embodiment, the target configuration information is the configuration information of the reference signal corresponding to the TRP, so that different reference signals can be indicated by switching of different TRPs, and thus, dynamic switching of uplink transmission waveforms of uplink transmission by the terminal is realized by the configuration information of different reference signals, and flexibility is high.
Optionally, the target configuration information is used to indicate any one of the following:
an uplink transmission waveform of an uplink channel associated with the at least one reference signal RS;
whether an uplink transmission waveform of an uplink channel associated with at least one RS is switched;
an uplink transmission waveform of an uplink channel associated with at least one sounding reference signal, SRS;
whether the uplink transmission waveform of the uplink channel associated with the at least one sounding reference signal SRS is switched.
The RS may be at least one of SRS, channel state information Reference Signal (CSI-RS), and synchronization Signal block (Synchronization Signal Block, SSB). The uplink channel may be PUSCH.
In one embodiment, the target configuration information may be used to indicate any of the following:
an uplink transmission waveform of an uplink channel associated with an RS corresponding to the TRP;
whether an uplink transmission waveform of an uplink channel associated with an RS corresponding to the TRP is switched;
uplink transmission waveforms of uplink channels associated with SRS corresponding to TRP;
whether or not the uplink transmission waveform of the uplink channel associated with the SRS corresponding to the TRP is switched.
It should be noted that different RSs may be associated with different TRPs, so that different associated RSs are indicated by the transformation of different TRPs, so as to implement switching of uplink transmission waveforms.
In this embodiment, the target configuration information is used to indicate whether the uplink transmission waveform or the uplink transmission waveform of the uplink channel associated with the at least one reference signal RS is switched, and/or whether the uplink transmission waveform or the uplink transmission waveform of the uplink channel associated with the at least one sounding reference signal SRS is switched, so that whether the uplink transmission waveform or the uplink transmission waveform of the uplink channel associated with the RS is switched can be determined through the target configuration information, and/or whether the uplink transmission waveform or the uplink transmission waveform of the uplink channel associated with the SRS is switched can be determined through the target configuration information, so that dynamic switching of the uplink transmission waveform of uplink transmission by the terminal can be achieved, and flexibility is high.
Optionally, the at least one RS corresponds to a first TRP, or the at least one SRS corresponds to a second TRP.
In this embodiment, the at least one RS corresponds to a first TRP, or the at least one SRS corresponds to a second TRP, so that whether an uplink transmission waveform or an uplink transmission waveform of an uplink channel associated with the RS corresponding to the first TRP is switched can be determined through the target configuration information; or, whether the uplink transmission waveform or the uplink transmission waveform of the uplink channel associated with the SRS corresponding to the second TRP is switched or not may be determined through the target configuration information. Therefore, the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is high.
Optionally, the target configuration information includes at least one of:
SRS resource information, wherein the SRS resource information comprises fifth indication information used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform;
and the identification of the SRS is used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform.
In one embodiment, the SRS resource information may include an SRS resource set (SRS-ResourceNet), a TransformaPrecoderInfo List may be defined within the SRS-ResourceNet IE for indicating a set of SRS Resrocytes, the TransformaPrecoderInfo List for indicating that each SRS resource corresponds to an uplink transmission using either a DFT-s-OFDM waveform (e.g., the value corresponding to TransformaPrecode is equal to enabled), or a CP-OFDM waveform (e.g., the value corresponding to TransformaPrecode is equal to disabled). Thus, for uplink transmission waveforms used for PUSCH transmission, it may be determined directly by the determined associated SRS resource.
For example, SRS-ResourceSet may be defined as follows.
In one embodiment, the SRS Resource information may include SRS resources (SRS-Resource) in which a TransformaPrecode is defined to indicate that the corresponding uplink transmission is using a DFT-s-OFDM waveform (e.g., the value corresponding to the TransformaPrecode is equal to enabled) or a CP-OFDM waveform (e.g., the value corresponding to the TransformaPrecode is equal to disabled).
For example, SRS-Resource may be defined as follows.
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In one embodiment, the uplink transmission waveform may be indicated by the identification (SRS resource index) of the SRS in either single TRP or multiple TRP operation. For example, the SRS's identified SRS resource indicator (SRS resource indicator, SRI) 0 represents that the uplink transmission waveform is DFT-s-OFDM, and SRI 1 represents that the uplink transmission waveform is CP-OFDM. The relationship between the SRI and the uplink transmission waveform may be specified by an RRC configuration or protocol, and the correspondence between the SRI and the uplink transmission waveform may be updated through a media access Control (Medium Access Control, MAC) Control Element (CE) signaling.
In one embodiment, whether to switch the uplink transmission waveform may be indicated by the identification (SRS resource index) of the SRS in single or multiple TRP operation. For example, the SRS flag SR 0 represents that the uplink transmission waveform is not switched, and SRI 1 represents that the uplink transmission waveform is switched.
In this embodiment, the target configuration information includes at least one of: SRS resource information, wherein the SRS resource information comprises fifth indication information used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform; and the identification of the SRS is used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform. In this way, the uplink transmission waveform can be determined by the SRS resource information and/or the SRS identification, and the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized by switching the SRS, so that the flexibility is high.
Optionally, the target configuration information is used for configuring: under the multi-TRP transmission using different PCIs, uplink transmission waveforms corresponding to different PCIs or whether uplink transmission waveforms corresponding to different PCIs are switched.
Wherein, the target configuration information can be configured through RRC.
In one embodiment, the target configuration information is used to configure: in the Inter-cell mTRP scene, uplink transmission waveforms corresponding to different PCIs or whether the uplink transmission waveforms corresponding to different PCIs are switched or not.
In this embodiment, the target configuration information is used to configure: under the multi-TRP transmission using different PCIs, uplink transmission waveforms corresponding to different PCIs or whether uplink transmission waveforms corresponding to different PCIs are switched. In this way, the uplink transmission waveforms corresponding to different PCIs in the multi-TRP transmission scene using different PCIs or the determination of whether the uplink transmission waveforms corresponding to different PCIs are switched can be realized, and the dynamic switching of the uplink transmission waveforms of the uplink transmission is realized through different PCIs by the terminal, so that the flexibility is higher.
Optionally, the DCI is configured to indicate whether to switch a third uplink transmission waveform of the scheduled uplink transmission, where the third uplink transmission waveform is an uplink transmission waveform configured by the target configuration information.
In this embodiment, under the multi-TRP transmission using different PCIs, the third uplink transmission waveform is configured by the target configuration information, and whether to switch the third uplink transmission waveform of the scheduled uplink transmission is indicated by the DCI, so that the dynamic switching of the uplink transmission waveform of the uplink transmission by the terminal can be realized, and the flexibility is high.
Optionally, the DCI includes at least one information field for indicating that the uplink transmission waveform is a discrete fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform or an orthogonal frequency division multiplexing CP-OFDM waveform with a cyclic prefix.
In this embodiment, at least one information field in the DCI indicates that the uplink transmission waveform is a DFT-s-OFDM waveform, or an CP-OFDM waveform with a cyclic prefix, so that the DCI explicitly indicates the uplink transmission waveform of the terminal to perform uplink transmission, thereby implementing dynamic switching of the uplink transmission waveform of the terminal to perform uplink transmission, and having high flexibility.
Optionally, the method further comprises:
the terminal determines an uplink transmission waveform through at least one of the following DCIs:
modulation and Coding Scheme (MCS) levels for uplink transmissions;
and frequency domain resource allocation information of uplink transmission.
In this embodiment, the terminal determines an uplink transmission waveform through at least one of the following in the DCI: modulation and Coding Scheme (MCS) levels for uplink transmissions; and frequency domain resource allocation information of uplink transmission. In this way, the DCI can implicitly instruct the terminal to carry out uplink transmission of the uplink transmission waveform, so that the terminal can dynamically switch the uplink transmission waveform of the uplink transmission, and the flexibility is high.
Referring to fig. 3, fig. 3 is a flowchart of an information sending method according to an embodiment of the present application, where, as shown in fig. 3, the information sending method includes the following steps:
step 201, a network side device sends downlink control information DCI and/or target configuration information to a terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
Optionally, the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
Optionally, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
Optionally, the DCI includes at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
It should be noted that, as an implementation manner of the network side device corresponding to the embodiment shown in fig. 2, a specific implementation manner of the embodiment may refer to a related description of the embodiment shown in fig. 2, so that in order to avoid repeated description, the embodiment is not repeated. In this way, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the DCI under the multi-TRP transmission, or determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is high.
According to the information receiving method provided by the embodiment of the application, the execution subject can be an information receiving device. In the embodiment of the present application, an information receiving apparatus executes an information receiving method as an example, and an information receiving apparatus provided in the embodiment of the present application is described.
Referring to fig. 4, fig. 4 is a block diagram of an information receiving apparatus according to an embodiment of the present application, and a terminal may include the information receiving apparatus, as shown in fig. 4, an information receiving apparatus 300 includes:
a receiving module 301, configured to receive downlink control information DCI and/or target configuration information sent by a network side device;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
Optionally, the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
Optionally, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
Optionally, the DCI includes at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
Optionally, in the multi-TRP transmission of the frequency division multiplexing FDM mode or the space division multiplexing SDM mode, uplink transmission waveforms of the plurality of uplink transmissions corresponding to the multi-TRP transmission are the same.
Optionally, the number of DCIs is plural, and each DCI in the plurality of DCIs is used to schedule one uplink transmission.
Optionally, when the uplink transmissions scheduled by the plurality of DCIs are sent at different times, a first DCI is used to determine an uplink transmission waveform of the uplink transmission corresponding to the first DCI, where the first DCI is any one of the plurality of DCIs.
Optionally, in a case that the uplink transmissions scheduled by the plurality of DCIs are sent at the same time, the apparatus further includes: an execution module for at least one of:
determining an uplink transmission waveform of uplink transmission corresponding to second DCI according to the second DCI, wherein the second DCI is any one of the plurality of DCIs;
only transmitting uplink transmission corresponding to a first uplink transmission waveform, wherein the first uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCI;
and transmitting the plurality of uplink transmissions scheduled by the plurality of DCIs by adopting a second uplink transmission waveform, wherein the second uplink transmission waveform is one of the uplink transmission waveforms indicated by the plurality of DCIs.
Optionally, the determining manner of the first uplink transmission waveform and/or the second uplink transmission waveform is any one of the following:
specified by a protocol;
configured by the network side equipment.
Optionally, the target configuration information is configuration information of a reference signal corresponding to the TRP.
Optionally, the target configuration information is used to indicate any one of the following:
an uplink transmission waveform of an uplink channel associated with the at least one reference signal RS;
Whether an uplink transmission waveform of an uplink channel associated with at least one RS is switched;
an uplink transmission waveform of an uplink channel associated with at least one sounding reference signal, SRS;
whether an uplink transmission waveform of an uplink channel associated with at least one SRS is switched.
Optionally, the at least one RS corresponds to a first TRP, or the at least one SRS corresponds to a second TRP.
Optionally, the target configuration information includes at least one of:
SRS resource information, wherein the SRS resource information comprises fifth indication information used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform;
and the identification of the SRS is used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform.
Optionally, the target configuration information is used for configuring: under the multi-TRP transmission using different PCIs, uplink transmission waveforms corresponding to different PCIs or whether uplink transmission waveforms corresponding to different PCIs are switched.
Optionally, the DCI is configured to indicate whether to switch a third uplink transmission waveform of the scheduled uplink transmission, where the third uplink transmission waveform is an uplink transmission waveform configured by the target configuration information.
Optionally, the DCI includes at least one information field for indicating that the uplink transmission waveform is a discrete fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform or an orthogonal frequency division multiplexing CP-OFDM waveform with a cyclic prefix.
Optionally, the apparatus further comprises: a determining module, configured to determine an uplink transmission waveform through at least one of the following in the DCI:
modulation and Coding Scheme (MCS) levels for uplink transmissions;
and frequency domain resource allocation information of uplink transmission.
According to the information receiving device in the embodiment of the application, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform under the multi-TRP transmission through DCI, or can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is higher.
The information receiving apparatus in the embodiment of the present application may be an electronic device, for example, an electronic device with an operating system, or may be a component in an electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The information receiving device provided by the embodiment of the present application can implement each process implemented by the method embodiment of fig. 2, and achieve the same technical effects, and in order to avoid repetition, a detailed description is omitted here.
Referring to fig. 5, fig. 5 is a block diagram of an information sending apparatus provided in an embodiment of the present application, where a network side device includes the information sending apparatus, as shown in fig. 5, an information sending apparatus 400 includes:
a sending module 401, configured to send downlink control information DCI and/or target configuration information to a terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
Optionally, the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
Optionally, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
Optionally, the DCI includes at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
According to the information sending device provided by the embodiment of the application, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform under the multi-TRP transmission through DCI, or can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the terminal can dynamically switch the uplink transmission waveform of uplink transmission, and the flexibility is higher.
The information sending device in the embodiment of the application can be an electronic device, for example, an electronic device with an operating system, or can be a component in the electronic device, for example, an integrated circuit or a chip. The electronic device may be a terminal, or may be other devices than a terminal. By way of example, terminals may include, but are not limited to, the types of terminals 11 listed above, other devices may be servers, network attached storage (Network Attached Storage, NAS), etc., and embodiments of the application are not specifically limited.
The information sending device provided by the embodiment of the application can realize each process realized by the method embodiment of fig. 3 and achieve the same technical effect, and in order to avoid repetition, the description is omitted here.
Optionally, as shown in fig. 6, the embodiment of the present application further provides a communication device 500, including a processor 501 and a memory 502, where the memory 502 stores a program or instructions that can be executed on the processor 501, for example, when the communication device 500 is a terminal, the program or instructions implement, when executed by the processor 501, the steps of the terminal operation method embodiment on the terminal side, and achieve the same technical effects. When the communication device 500 is a network side device, the program or the instruction, when executed by the processor 501, implements the steps of the terminal operation method embodiment of the network side device, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
The embodiment of the application also provides a terminal which comprises a processor and a communication interface, wherein the communication interface is used for receiving Downlink Control Information (DCI) sent by the network side equipment and/or target configuration information; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission. The terminal embodiment corresponds to the terminal-side method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the terminal embodiment, and the same technical effects can be achieved. Specifically, fig. 7 is a schematic diagram of a hardware structure of a terminal for implementing an embodiment of the present application.
The terminal 600 includes, but is not limited to: at least some of the components of the radio frequency unit 601, the network module 602, the audio output unit 603, the input unit 604, the sensor 605, the display unit 606, the user input unit 607, the interface unit 608, the memory 609, and the processor 610, etc.
Those skilled in the art will appreciate that the terminal 600 may further include a power source (e.g., a battery) for powering the various components, and the power source may be logically coupled to the processor 610 by a power management system so as to perform functions such as managing charging, discharging, and power consumption by the power management system. The terminal structure shown in fig. 7 does not constitute a limitation of the terminal, and the terminal may include more or less components than shown, or may combine certain components, or may be arranged in different components, which will not be described in detail herein.
It should be appreciated that in embodiments of the present application, the input unit 604 may include a graphics processing unit (Graphics Processing Unit, GPU) 6041 and a microphone 6042, with the graphics processor 6041 processing image data of still pictures or video obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, or the like. The user input unit 607 includes at least one of a touch panel 6071 and other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts of a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and so forth, which are not described in detail herein.
In the embodiment of the present application, after receiving downlink data from the network side device, the radio frequency unit 601 may transmit the downlink data to the processor 610 for processing; in addition, the radio frequency unit 601 may send uplink data to the network side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like.
The memory 609 may be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area may store an operating system, application programs or instructions (such as a sound playing function, an image playing function, etc.) required for at least one function, and the like. Further, the memory 609 may include volatile memory or nonvolatile memory, or the memory 609 may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM), static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (ddr SDRAM), enhanced SDRAM (Enhanced SDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DRRAM). Memory 609 in embodiments of the present application includes, but is not limited to, these and any other suitable types of memory.
The processor 610 may include one or more processing units; optionally, the processor 610 integrates an application processor that primarily processes operations involving an operating system, user interface, application programs, etc., and a modem processor that primarily processes wireless communication signals, such as a baseband processor. It will be appreciated that the modem processor described above may not be integrated into the processor 610.
Wherein, the radio frequency unit 601 is used for:
receiving Downlink Control Information (DCI) sent by network side equipment and/or target configuration information;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
Optionally, the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
Optionally, the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
Optionally, the DCI includes at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
Optionally, in the multi-TRP transmission of the frequency division multiplexing FDM mode or the space division multiplexing SDM mode, uplink transmission waveforms of the plurality of uplink transmissions corresponding to the multi-TRP transmission are the same.
Optionally, the number of DCIs is plural, and each DCI in the plurality of DCIs is used to schedule one uplink transmission.
Optionally, when the uplink transmissions scheduled by the plurality of DCIs are sent at different times, a first DCI is used to determine an uplink transmission waveform of the uplink transmission corresponding to the first DCI, where the first DCI is any one of the plurality of DCIs.
Optionally, in a case where the plurality of DCI scheduled uplink transmissions are transmitted at the same time, the processor 610 is configured to at least one of:
determining an uplink transmission waveform of uplink transmission corresponding to second DCI according to the second DCI, wherein the second DCI is any one of the plurality of DCIs;
only transmitting uplink transmission corresponding to a first uplink transmission waveform, wherein the first uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCI;
and transmitting the plurality of uplink transmissions scheduled by the plurality of DCIs by adopting a second uplink transmission waveform, wherein the second uplink transmission waveform is one of the uplink transmission waveforms indicated by the plurality of DCIs.
Optionally, the determining manner of the first uplink transmission waveform and/or the second uplink transmission waveform is any one of the following:
specified by a protocol;
configured by the network side equipment.
Optionally, the target configuration information is configuration information of a reference signal corresponding to the TRP.
Optionally, the target configuration information is used to indicate any one of the following:
an uplink transmission waveform of an uplink channel associated with the at least one reference signal RS;
whether an uplink transmission waveform of an uplink channel associated with at least one RS is switched;
An uplink transmission waveform of an uplink channel associated with at least one sounding reference signal, SRS;
whether an uplink transmission waveform of an uplink channel associated with at least one SRS is switched.
Optionally, the at least one RS corresponds to a first TRP, or the at least one SRS corresponds to a second TRP.
Optionally, the target configuration information includes at least one of:
SRS resource information, wherein the SRS resource information comprises fifth indication information used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform;
and the identification of the SRS is used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform.
Optionally, the target configuration information is used for configuring: under the multi-TRP transmission using different PCIs, uplink transmission waveforms corresponding to different PCIs or whether uplink transmission waveforms corresponding to different PCIs are switched.
Optionally, the DCI is configured to indicate whether to switch a third uplink transmission waveform of the scheduled uplink transmission, where the third uplink transmission waveform is an uplink transmission waveform configured by the target configuration information.
Optionally, the DCI includes at least one information field for indicating that the uplink transmission waveform is a discrete fourier transform spread orthogonal frequency division multiplexing DFT-s-OFDM waveform or an orthogonal frequency division multiplexing CP-OFDM waveform with a cyclic prefix.
Optionally, the processor 610 is configured to:
determining an uplink transmission waveform by at least one of the following in the DCI:
modulation and Coding Scheme (MCS) levels for uplink transmissions;
and frequency domain resource allocation information of uplink transmission.
According to the terminal in the embodiment of the application, the terminal can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform under the multi-TRP transmission through DCI, or can determine whether to switch the uplink transmission waveform or determine the uplink transmission waveform through the target configuration information, so that the dynamic switching of the uplink transmission waveform of the terminal for uplink transmission can be realized, and the flexibility is higher.
The embodiment of the application also provides network side equipment, which comprises a processor and a communication interface, wherein the communication interface is used for: transmitting downlink control information DCI and/or target configuration information to a terminal; wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP; the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission. The network side device embodiment corresponds to the network side device method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the network side device embodiment, and the same technical effects can be achieved.
Specifically, the embodiment of the application also provides network side equipment. As shown in fig. 8, the network side device 700 includes: an antenna 701, a radio frequency device 702, a baseband device 703, a processor 704 and a memory 705. The antenna 701 is connected to a radio frequency device 702. In the uplink direction, the radio frequency device 702 receives information via the antenna 701, and transmits the received information to the baseband device 703 for processing. In the downlink direction, the baseband device 703 processes information to be transmitted, and transmits the processed information to the radio frequency device 702, and the radio frequency device 702 processes the received information and transmits the processed information through the antenna 701.
The method performed by the network-side device in the above embodiment may be implemented in the baseband apparatus 703, where the baseband apparatus 703 includes a baseband processor.
The baseband apparatus 703 may, for example, comprise at least one baseband board, where a plurality of chips are disposed, as shown in fig. 8, where one chip, for example, a baseband processor, is connected to the memory 705 through a bus interface, so as to call a program in the memory 705 to perform the network device operation shown in the above method embodiment.
The network-side device may also include a network interface 706, such as a common public radio interface (common public radio interface, CPRI).
Specifically, the network side device 700 of the embodiment of the present application further includes: instructions or programs stored in the memory 705 and executable on the processor 704, the processor 704 invokes the instructions or programs in the memory 705 to perform the methods performed by the modules shown in fig. 5 and achieve the same technical effects, and are not described herein in detail to avoid repetition.
The embodiment of the application also provides a readable storage medium, on which a program or an instruction is stored, which when executed by a processor, implements each process of the above-mentioned information receiving method or the information sending method embodiment, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the terminal described in the above embodiment. The readable storage medium includes computer readable storage medium such as computer readable memory ROM, random access memory RAM, magnetic or optical disk, etc.
The embodiment of the application further provides a chip, the chip comprises a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or instructions, the processes of the information receiving method or the information sending method embodiment can be realized, the same technical effects can be achieved, and the repetition is avoided, and the description is omitted here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, or the like.
The embodiments of the present application further provide a computer program/program product stored in a storage medium, where the computer program/program product is executed by at least one processor to implement each process of the above information receiving method or the information sending method, and achieve the same technical effects, so that repetition is avoided and redundant description is omitted herein.
The embodiment of the application also provides an information receiving and transmitting system, which comprises: the terminal can be used for executing the steps of the information receiving method, and the network side device can be used for executing the steps of the information sending method.
It should be noted that, in this document, 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 one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (26)
1. An information receiving method, comprising:
the terminal receives Downlink Control Information (DCI) sent by network side equipment and/or target configuration information;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
2. The method of claim 1, wherein the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
3. The method of claim 1, wherein the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
4. The method of claim 3, wherein the DCI comprises at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
Second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
5. The method of claim 1, wherein uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission are the same in the multi-TRP transmission of a frequency division multiplexing FDM scheme or a space division multiplexing SDM scheme.
6. The method of claim 1, wherein the number of DCIs is a plurality, each of the plurality of DCIs for scheduling an uplink transmission.
7. The method of claim 6, wherein, in a case where the uplink transmissions scheduled by the plurality of DCIs are transmitted at different times, a first DCI is used to determine an uplink transmission waveform of the uplink transmission corresponding to the first DCI, where the first DCI is any one of the plurality of DCIs.
8. The method of claim 6, wherein in the case where the plurality of DCI scheduled uplink transmissions are transmitted at the same time, the method further comprises at least one of:
The terminal determines an uplink transmission waveform of uplink transmission corresponding to second DCI according to the second DCI, wherein the second DCI is any one of the plurality of DCIs;
the terminal only transmits uplink transmission corresponding to a first uplink transmission waveform, wherein the first uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCI;
and the terminal adopts a second uplink transmission waveform to transmit the uplink transmissions scheduled by the DCIs, wherein the second uplink transmission waveform is one of the uplink transmission waveforms indicated by the DCIs.
9. The method according to claim 8, wherein the first uplink transmission waveform and/or the second uplink transmission waveform is determined by any one of the following methods:
specified by a protocol;
configured by the network side equipment.
10. The method of claim 1, wherein the target configuration information is configuration information of a reference signal corresponding to a TRP.
11. The method of claim 1, wherein the target configuration information is used to indicate any one of:
an uplink transmission waveform of an uplink channel associated with the at least one reference signal RS;
Whether an uplink transmission waveform of an uplink channel associated with at least one RS is switched;
an uplink transmission waveform of an uplink channel associated with at least one sounding reference signal, SRS;
whether an uplink transmission waveform of an uplink channel associated with at least one SRS is switched.
12. The method of claim 11, wherein the at least one RS corresponds to a first TRP or the at least one SRS corresponds to a second TRP.
13. The method of claim 1, wherein the target configuration information comprises at least one of:
SRS resource information, wherein the SRS resource information comprises fifth indication information used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform;
and the identification of the SRS is used for determining an uplink transmission waveform or determining whether to switch the uplink transmission waveform.
14. The method of claim 1, wherein the target configuration information is used to configure: under the multi-TRP transmission using different PCIs, uplink transmission waveforms corresponding to different PCIs or whether uplink transmission waveforms corresponding to different PCIs are switched.
15. The method of claim 14, wherein the DCI indicates whether to switch a third uplink transmission waveform of the scheduled uplink transmission, the third uplink transmission waveform being an uplink transmission waveform configured by the target configuration information.
16. The method of claim 1, wherein the DCI comprises at least one information field for indicating that an uplink transmission waveform is a discrete fourier transform spread orthogonal frequency division multiplexing, DFT-s-OFDM, waveform or an orthogonal frequency division multiplexing, CP-OFDM, waveform with a cyclic prefix.
17. The method according to claim 1, wherein the method further comprises:
the terminal determines an uplink transmission waveform through at least one of the following DCIs:
modulation and Coding Scheme (MCS) levels for uplink transmissions;
and frequency domain resource allocation information of uplink transmission.
18. An information transmission method, comprising:
the network side equipment sends downlink control information DCI and/or target configuration information to the terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
19. The method of claim 18, wherein the DCI is used to indicate at least one of:
uplink transmission waveforms;
whether to switch the uplink transmission waveform;
the switching mode of the uplink transmission waveform.
20. The method of claim 18, wherein the DCI is used to determine whether to switch an uplink transmission waveform or determine an uplink transmission waveform under multi-TRP transmission in a time division multiplexing TDM manner.
21. The method of claim 20, wherein the DCI comprises at least one of:
first indication information, wherein the first indication information is used for indicating uplink transmission waveforms of a plurality of uplink transmissions corresponding to the multi-TRP transmission;
second indication information, where the second indication information is used to indicate whether the uplink transmission waveforms are switched by the uplink transmissions corresponding to the multi-TRP transmission;
a third indication information, where the third indication information is used to indicate a switching manner of uplink transmission waveforms of multiple uplink transmissions corresponding to the multi-TRP transmission;
fourth indication information, the fourth indication information is used for indicating uplink transmission waveforms corresponding to each TRP transmission in the multi-TRP transmission.
22. An information receiving apparatus, comprising:
The receiving module is used for receiving Downlink Control Information (DCI) sent by the network side equipment and/or target configuration information;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
23. An information transmitting apparatus, comprising:
a sending module, configured to send downlink control information DCI and/or target configuration information to a terminal;
wherein, the DCI is used for determining whether to switch an uplink transmission waveform or determining an uplink transmission waveform under the transmission of multiple transmission and reception points TRP;
the target configuration information is used for configuring an uplink transmission waveform, and is the configuration information of a reference signal or the configuration information corresponding to a physical cell identifier PCI under multi-TRP transmission.
24. A terminal comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the information receiving method of any one of claims 1 to 17.
25. A network side device comprising a processor and a memory storing a program or instructions executable on the processor, which when executed by the processor, implement the steps of the information transmission method of any one of claims 18 to 21.
26. A readable storage medium, characterized in that the readable storage medium stores thereon a program or instructions which, when executed by a processor, implement the steps of the information receiving method according to any one of claims 1 to 17 or the steps of the information transmitting method according to any one of claims 18 to 21.
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