CN110798298B

CN110798298B - Control information indication and receiving method and equipment

Info

Publication number: CN110798298B
Application number: CN201810879716.1A
Authority: CN
Inventors: 鲁智; 孙鹏; 孙晓东
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-08-03
Filing date: 2018-08-03
Publication date: 2021-11-02
Anticipated expiration: 2038-08-03
Also published as: CN110798298A; WO2020024813A1

Abstract

The invention provides a method and equipment for indicating and receiving control information, wherein the indicating method comprises the following steps: and sending control information, wherein the control information is used for instructing the terminal equipment to transmit the physical shared channel according to the plurality of quasi co-located QCL parameters. According to the embodiment of the invention, the network equipment transmits the control information to the terminal equipment, so that the terminal equipment can transmit the physical shared channel according to the plurality of quasi co-located QCL parameters instead of transparently receiving the physical shared channels such as PDSCH and the like, and the transmission effectiveness and reliability of the physical shared channel can be improved.

Description

Control information indication and receiving method and equipment

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for indicating and receiving control information.

Background

Fifth generation (5)^thGeneration, 5G) application scenarios of Mobile Communication systems include enhanced Mobile Broadband (eMBB), massive Machine Type Communication (mMTC), and high-reliability and low-latency Communication (Ultra Reliable)&Low Latency Communication, URLLC), etc., which put forward requirements on the system for high reliability, Low Latency, high throughput, large bandwidth, wide coverage, etc. Since the reliability and throughput of data Transmission can be increased by multi-Transmission and Reception Point (TRP) Transmission, signal Transmission based on multi-TRP becomes one of important technologies of a 5G system. For example, the network side may transmit the same or different data to a terminal Equipment (UE) through a plurality of TRPs.

However, at present, the network side only indicates control information for transmitting single-TRP transmission data, so that the UE can only transparently receive data from multiple TRPs as well as data from a single TRP, resulting in low reliability and effectiveness of data transmission.

Disclosure of Invention

The embodiment of the invention provides a method and equipment for indicating and receiving control information, which are used for improving the reliability and effectiveness of data transmission.

In a first aspect, a control information indication method is provided, which is applied to a network device, and the method includes:

and sending control information, wherein the control information is used for instructing the terminal equipment to transmit the physical shared channel according to the plurality of quasi co-located QCL parameters.

In a second aspect, a control information receiving method is provided, which is applied to a terminal device, and includes:

and receiving control information, wherein the control information is used for instructing the terminal equipment to transmit the physical shared channel according to the plurality of quasi co-located QCL parameters.

In a third aspect, a network device is provided, which includes:

and the sending module is used for sending control information, and the control information is used for indicating the terminal equipment to transmit the physical shared channel according to the plurality of quasi co-located QCL parameters.

In a fourth aspect, a terminal device is provided, which includes:

and the receiving module is used for receiving control information, wherein the control information is used for indicating the terminal equipment to transmit the physical shared channel according to the plurality of quasi co-located QCL parameters.

In a fifth aspect, a network device is provided, which comprises a memory, a processor and a wireless communication program stored on the memory and executable on the processor, the wireless communication program, when executed by the processor, implementing the steps of the method according to the first aspect.

In a sixth aspect, a terminal device is provided, which comprises a memory, a processor and a wireless communication program stored on the memory and executable on the processor, the wireless communication program, when executed by the processor, implementing the steps of the method according to the second aspect.

In a seventh aspect, a computer readable medium is provided, having stored thereon a wireless communication program, which when executed by a processor, performs the steps of the method according to the first or second aspect.

In the embodiment of the invention, the network equipment transmits the control information to the terminal equipment, so that the terminal equipment can transmit the physical shared channel according to the plurality of quasi co-located QCL parameters instead of transparently receiving the physical shared channels such as PDSCH and the like, and the transmission effectiveness and reliability of the physical shared channel can be improved.

Drawings

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

Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present invention.

Fig. 2 is a schematic flow chart of a control information indication method according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of a target frequency domain resource determination principle according to an embodiment of the present invention.

Fig. 4 is a schematic flowchart of a control information receiving method according to an embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a network device 500 according to an embodiment of the present invention.

Fig. 6 is a schematic structural diagram of a terminal device 600 according to an embodiment of the present invention.

Fig. 7 is a schematic structural diagram of a network device 700 according to an embodiment of the present invention.

Fig. 8 is a schematic structural diagram of a terminal device 800 according to an embodiment of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the drawings in the embodiment of the present invention, and it is obvious that the described embodiment is only a part of the embodiment of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be understood that the technical solutions of the embodiments of the present invention can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS), a Long Term Evolution (Long Term Evolution, LTE) System, an LTE Frequency Division Duplex (FDD) System, an LTE Time Division Duplex (TDD), a Universal Mobile Telecommunications System (UMTS) or a Worldwide Interoperability for Microwave Access (WiMAX) communication System, a 5G System, or a New Radio (NR) System.

A Terminal device (UE), which may also be referred to as a Mobile Terminal (Mobile Terminal), a Mobile Terminal device, or the like, may communicate with at least one core Network via a Radio Access Network (RAN, for example), where the Terminal device may be a Mobile Terminal, such as a Mobile phone (or a "cellular" phone) and a computer having the Mobile Terminal, such as a portable, pocket, handheld, computer-embedded or vehicle-mounted Mobile device, and may exchange languages and/or data with the Radio Access Network.

The network device is a device deployed in a radio access network device and configured to provide a control information indication function for a terminal device, where the network device may be a Base Station, and the Base Station may be a Base Transceiver Station (BTS) in GSM or CDMA, a Base Station (NodeB) in WCDMA, an evolved Node B (eNB or e-NodeB) and a 5G Base Station (gNB) in LTE, and a network-side device in a subsequent evolved communication system, where terms do not limit the protection scope of the present invention.

It should be noted that, when describing a specific embodiment, the sequence number of each process does not mean the execution sequence, and the execution sequence of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiment of the present invention.

It should be noted that, the downlink signal indicating and receiving method and apparatus provided in the embodiment of the present invention are described below by taking the 5G system as an example, and it should be understood that the downlink signal indicating and receiving method and apparatus provided in the embodiment of the present invention may also be applied to other communication systems, and are not limited to the 5G system.

In order to more clearly understand the technical solution provided by the embodiment of the present invention, an application scenario of the embodiment of the present invention is described below with reference to fig. 1.

The technical solution provided in the embodiments of the present invention is directed to an application scenario in which a plurality of physical shared channels are scheduled using one Downlink Control Information (DCI). It should be understood that the DCI is typically carried by a Physical Downlink Control Channel (PDCCH).

The Physical Shared Channel may include a Physical Downlink Shared Channel (PDSCH) and a Physical Uplink Shared Channel (PUSCH). For convenience of description, in the embodiment of the present invention, a physical shared channel is taken as an example of a PDSCH, and various technical solutions provided by the example of the present invention are introduced.

As shown in fig. 1, in an application scenario, a Transmission and Reception Point (TRP) 1 transmits information to a terminal device 3 in a beam direction 11, where the information is carried by a PDCCH1 (DCI for invoking PDSCH1 and PDSCH2 is carried in PDCCH 1) and a PDSCH 1; at the same time TRP2 transmits information to terminal device 3 in beam direction 21, which information is carried over PDSCH 2. That is, in the scenario shown in fig. 1, two TRPs transmit two different PDSCHs to the terminal device under the scheduling of one PDCCH.

In fig. 1, TRP1 and TRP2 may be the same network device or different network devices. The technical solution provided in the embodiments of the present invention may be considered to be directed to an application scenario in which multiple TRPs are scheduled to transmit a physical shared channel to a terminal device by using one DCI. The PDSCHs transmitted by the plurality of TRPs to the terminal device may be the same physical shared channel or different physical shared channels. And the one DCI may be transmitted by any one of the plurality of TRPs.

The embodiment of the invention aims to enable the terminal equipment to transmit the physical shared channel according to the plurality of quasi-co-located QCL parameters instead of transparently, and finally improve the reliability and effectiveness of the transmission of the physical shared channel.

The following description will first describe a control information indication method applied to a network device with reference to fig. 2.

Fig. 2 illustrates a control information indication method according to an embodiment of the present invention, applied to a network device. As shown in fig. 2, the method may include the steps of:

step 201, sending control information, where the control information is used to instruct a terminal device to transmit a physical shared channel according to a plurality of quasi co-located QCL parameters.

Wherein a Quasi Co-location (QCL) is used to associate at least two antenna ports. When there is a QCL relationship between the two antennas, it means that certain large-scale parameters of the at least two antenna ports to the same terminal device are similar or identical, for example at least one of the parameters doppler shift, doppler spread, average delay, delay spread and spatial reception parameters are similar or identical.

On this basis, a QCL parameter is understood to be a set of the above-mentioned large-scale parameters. Generally, one QCL parameter corresponds to one network device (TRP), and accordingly, in step 301, the multiple PDSCHs received according to the multiple QCL parameters can be understood as multiple PDSCHs received from the multiple TRPs.

Optionally, in this embodiment of the present invention, the plurality of QCL parameters in step 201 may be the same plurality of QCL parameters, or may be different plurality of QCL parameters. Whether the two QCL parameters are the same or not can be determined by judging whether the large-scale parameters corresponding to the two QCL parameters are the same or not.

Alternatively, one QCL parameter may be considered to correspond to one control resource set (coreset), and one control resource set corresponds to one network device (TRP). The control resource set generally refers to a resource set (mainly frequency domain resources) carrying PDCCHs, one PDCCH may be configured using parameters of one control resource set, and one PDCCH may carry one DCI.

In a first example, the control information in step 201 may include first indication information indicating the plurality of QCL parameters. In this case, step 201 may specifically include: and sending the first indication information through Downlink Control Information (DCI).

For example, an m-bit (bit) QCL parameter domain may be added to existing DCI for scheduling PDSCH through a single TRP, and the terminal device may be indicated through the QCL parameter domain that the transmitted PDSCH corresponds to those several QCL parameters. Specifically, for example, if a 6(m ═ 6) bit QCL parameter field is added to the DCI, when the field value of the 6 bit QCL parameter field is 010100, it indicates that the DCI transmits the same PDSCH according to the second QCL parameter and the fourth QCL parameter.

In the embodiment of the present invention, whether multiple PDSCHs are the same may be understood as whether the multiple PDSCHs are scheduled by the same Hybrid Automatic Repeat Request (HARQ) process, and if the multiple PDSCHs are scheduled by the same HARQ process, the multiple PDSCHs may be considered to be the same, otherwise, the multiple PDSCHs are different.

Further, when the terminal device determines that the multiple PDSCHs are scheduled by the same HARQ process, the received multiple PDSCHs may be stored in a buffer corresponding to the identifier of the HARQ process; when the terminal equipment determines that the multiple PDSCHs are scheduled by different HARQ processes, the multiple PDSCHs are respectively stored in the cache corresponding to the identifier of the corresponding HARQ process, so that the terminal equipment can conveniently process the PDSCHs, and the reliability and the effectiveness of PDSCH transmission are improved.

Further, based on the first example, it is also possible to determine whether Transport blocks (Transport blocks, TBs) of the physical shared channel are the same according to the plurality of QCL parameters in the following manners.

In the first manner, the control information in step 201 may further include second indication information, which may be used for the terminal device to determine whether the transport blocks, TBs, of the physical shared channel received according to the multiple QCL parameters are the same. In addition, the second indication information may be transmitted through DCI.

For example, a 4-bit second indication information indication field may be additionally added to the DCI, a different field value of the 4-bit indication field is used to indicate the same TB or a different TB, and a correspondence relationship between the field value of the 4-bit indication field and the TB is the same may be as shown in table 1.

TABLE 1

It can be understood that, in table 1, the value of the code point (Codepoint) corresponds to the field value of the 4-bit second indication information indication field, that is, the value of the field value of the 4-bit indication field is 16 values "0000-. Wherein QCL parameter i and QCL parameter j represent two different QCL parameters.

It is also understood that TB1 and TB2 in table 1 are identifications of two TBs carried by one PDSCH, wherein data in TB1 and TB2 may be divided into a plurality of layers according to the number of Demodulation Reference Signal (DMRS) ports used by the network device. For example, assuming that the network device indicates to use 8 DMRS ports to transmit PDSCH, TB1 may be correspondingly divided into 1-4 layers and mapped to 4 of the 8 DMRS ports to transmit when TB1 is transmitted; TB2 is also divided into layers 1-4 and is transmitted mapped to another 4 of the 8 DMRS ports when TB2 is transmitted.

The mapping relation between the TB and the DMRS port and the layer in the TB can be determined according to a set rule. For example, if the DMRS ports used for transmitting PDSCH according to the first QCL parameter are 1 to 8 and the DMRS ports used for transmitting PDSCH according to the second QCL parameter are also 1 to 8, TB1 may be mapped to the first 4 ports of the 8 ports and TB2 may be mapped to the last 4 ports of the 8 ports, that is, if the DMRS port numbers of PDSCH received by the terminal device are indicated as 1 to 4, it is indicated that TB1 of the PDSCH is transmitted; if the terminal device receives the PDSCH with DMRS port number indication of 5-8, the terminal device transmits TB2 of the PDSCH.

On this basis, the terminal device may determine the TB in the received PDSCH and the layer in the TB according to the DMRS port number indicated by the network, where the DMRS port number may specifically be indicated by an Antenna port(s) field in the DCI.

As another example, a 2-bit second indication information indication field may be additionally added to the DCI, and different field values of the 2-bit indication field are used to indicate the same TB or different TBs. Specifically, in case that the terminal device receives the PDSCH corresponding to 2 QCL parameters, it may indicate whether TB1 of the PDSCH received corresponding to 2 QCL parameters is the same using a first bit of the 2 bits and indicate whether TB2 of the PDSCH received corresponding to 2 QCL parameters is the same using a second bit of the 2 bits.

Or, for example, a 4-bit second indication information indication field may be additionally added to the DCI, and the same TB or different TBs may be represented by different field values of the 4-bit indication field. Wherein the first bit indicates that TB1 corresponding to PDSCH received with 2 QCL parameters is for the same TB; the second bit indicates that TB2 corresponding to PDSCH received for 2 QCL parameters is for the same TB; the third bit indicates TB1 corresponding to PDSCH received with QCL parameter i, for the same TB as TB2 corresponding to PDSCH received with QCL parameter j; the fourth bit indicates that TB2 corresponding to the PDSCH received with QCL parameter i is for the same TB as TB1 corresponding to the PDSCH received with QCL parameter j. In this example, QCL parameter i and QCL parameter j are each one of the 2 QCL parameters.

Or, for example, a 3-bit second indication information indication field may be additionally added to the DCI, and the same TB or different TBs may be represented by different field values of the 3-bit indication field. Wherein the first bit is flag information. When the flag information is 0: the second bit indicates that TB1 of the PDSCH received from the 2 QCL parameters is for the same TB, and the third bit indicates that TB2 of the PDSCH received from the 2 QCL parameters is for the same TB. When the flag information is 1: the second bit indicates TB1 corresponding to PDSCH received with QCL parameter i, for the same TB as TB2 corresponding to PDSCH received with QCL parameter j; the second bit indicates that TB2 corresponding to the PDSCH received with QCL parameter i is for the same TB as TB1 corresponding to the PDSCH received with QCL parameter j. Also, in this example, QCL parameter i and QCL parameter j are each one of the 2 QCL parameters.

In a second manner, second indication information may be indicated to the terminal device in an implicit manner, specifically, before step 201, a first preset rule is sent through higher layer information, where the first preset rule is used by the terminal device to determine, according to an identifier of a control resource set adopted when receiving the DCI, second indication information used by the terminal device to determine whether transport blocks TB of the physical shared channel received according to the multiple QCL parameters are the same.

That is, in the second example, the network device may configure the first preset rule to the terminal device in advance, and then the terminal device determines the second indication information according to the identifier of the control resource set used when receiving the DCI for scheduling the PDSCH and the first preset rule, instead of directly indicating (directly indicating by the DCI may be understood as an explicit indication manner) the second indication information by the DCI, such an implicit indication manner may not only improve communication reliability and validity by using the second indication information, but also save resources for carrying the DCI.

For example, the first preset rule may be that Y is calculated by using a formula "mod (coreset ID, x) ═ Y", different values of Y are used to represent different second indication information, and a correspondence between the values of Y and the second indication information may be configured to the terminal device through higher-layer information in advance. Where "mod" represents the modulo operator, coreset ID represents the identity of the control resource set employed when receiving DCI, and x is a fixed value and can be configured by higher layer information.

The corresponding relationship between the Y value and the second indication information, which is configured in advance for the terminal device by the high-level information, may include, for example, the following:

if the terminal device receives DCI on a control resource set of mod (coreset ID,4) ═ 0, the TB1 of the PDSCH received by the terminal device according to QCL parameter i is the same TB as the TB1 of the PDSCH received according to QCL parameter j.

If the terminal device receives DCI on a control resource set of mod (coreset ID,4) ═ 1, the TB1 of the PDSCH received by the terminal device according to QCL parameter i is a different TB from the TB1 of the PDSCH received by the terminal device according to QCL parameter j.

If the terminal device receives DCI on the control resource set of mod (coreset ID,4) ═ 2, the TB1 of the PDSCH received by the terminal device according to QCL parameter i is the same TB as the TB1 of the PDSCH received by the terminal device according to QCL parameter j, wherein the TB2 of the PDSCH received by the terminal device according to QCL parameter i is different from the TB2 of the PDSCH received by the terminal device according to QCL parameter j.

If the terminal device receives DCI on the control resource set of mod (coreset ID,3) ═ 3, the terminal device receives the TB1 of PDSCH according to QCL parameter i, which is the same TB as the terminal device receives the TB1 according to QCL parameter j, and the terminal device receives the TB2 of PDSCH according to QCL parameter i, which is the same TB as the terminal device receives the TB2 of PDSCH according to QCL parameter j, and so on, which are not listed herein.

In the third manner, second Indication information may be indicated to the terminal device in an implicit manner, specifically, before step 201, a preset corresponding relationship is sent through higher layer information, where the preset corresponding relationship is a corresponding relationship between a Transmission Control Indication (TCI) domain value and the second Indication information, the TCI domain value is used to determine the second Indication information based on the preset corresponding relationship, the second Indication information is used to determine, by the terminal device, whether the transport blocks TB of the physical shared channel received according to the multiple QCL parameters are the same, and the preset corresponding relationship is the corresponding relationship between the TCI domain value and the second Indication information.

That is, in the third example, the network device may configure a preset corresponding relationship between the TCI domain value and the second indication information in advance for the terminal device, and then the terminal device determines the second indication information according to the preset corresponding relationship and the TCI domain value indicated in the DCI, instead of directly indicating the second indication information by the DCI (the way of directly indicating by the DCI may be understood as an explicit indication way), in this implicit indication way, not only the second indication information may be used to improve communication reliability and validity, but also resources for bearing the DCI may be saved.

For example, the network device may add second indication Information (i.e., Information on whether the TB is the same) to a TCI status (state) Information Element (IE) in advance, and transmit the second indication Information to the terminal device through higher layer Information such as RRC. Specifically, the following TCI-state IE may be sent to the device in advance:

the TCI-state IE includes a line of contents "TB-state ENUMERATED { n1, n2, n3, n4 · }", which is a correspondence between the TCI domain value and the second indication information, and specifically, the second indication information can be represented by a TB state (TB-state).

In the TCI-state IE, a TB-state indicates whether TBs of the PDSCH transmitted according to the plurality of QCL parameters are the same TBs. For example: when the TB-state is n1, the TB1 of the PDSCH is transmitted according to the QCL parameter i and the QCL parameter j, and the same layer data of the TB1 is transmitted according to the QCL parameter i and the QCL parameter j; when the TB-state is n2, transmitting the TB1 of the PDSCH according to the QCL parameter i and the QCL parameter j, but transmitting different layer data of the TB1 according to the QCL parameter i and the QCL parameter j; when the TB-state is n3, transmitting the TB2 of the PDSCH according to the QCL parameter i and the QCL parameter j; when the TB-state is n4, the PDSCH TB1 is transmitted according to QCL parameter i and QCL parameter j, and the same layer of data of TB1 is transmitted according to QCL parameter i and QCL parameter j, and the PDSCH TB2 is transmitted according to QCL parameter i, and so on, which are not listed here.

In a second example, prior to transmitting the DCI, the method further comprises: and sending the fourth indication information through high-layer information, wherein the fourth indication information is used for indicating that the frequency domain resource allocation information of the physical shared channel is transmitted according to the QCL parameters. Of course, the fourth indication information may also be transmitted through the DCI described above, but this may significantly increase the DCI load.

In the first implementation manner of the second example, the frequency domain resource allocation information in the fourth indication information may include first frequency domain resources, where the frequency domain resources when the physical shared channel is transmitted according to the multiple QCL parameters are all the first frequency domain resources. That is, the higher layer information may configure the physical shared channel transmitted according to the multiple QCL parameters to use the same frequency domain resources.

In a second implementation manner of the second example, the frequency domain resource allocation information in the fourth indication information may include a reference frequency domain resource and a second preset rule, the reference frequency domain resource is a frequency domain resource for transmitting the physical shared channel according to a reference QCL parameter, the second preset rule is used for determining a target frequency domain resource based on the reference frequency domain resource, the target frequency domain resource is a frequency domain resource for transmitting the physical shared channel according to a target QCL parameter, and the target QCL parameter is any one of the plurality of QCL parameters.

Further, the reference QCL parameter may also be one of the plurality of QCL parameters, but the reference QCL parameter is different from the target QCL parameter. At this time, if the second embodiment described above is adopted, it means that the frequency domain resource allocation of the PDSCH transmitted according to the QCL parameter j (target QCL parameter) can be indirectly (implicitly) obtained by the resource allocation of the PDSCH transmitted according to the QCL parameter i (reference QCL parameter).

Wherein the reference QCL parameter may be a most important QCL parameter of the plurality of QCL parameters, and as an example, the most important QCL parameter may be a first QCL parameter indicated in a QCL parameter field value of the DCI. For example, assuming that the network device configures 8 QCL parameters to the terminal device, and the field value of the QCL parameter indicated by the DCI is 01010001, it indicates that the network device transmits the same PDSCH according to the second, fourth, and eighth QCL parameters, where the second QCL parameter may be the most important QCL parameter.

Further, in the second implementation manner of the second example, the control information is transmitted through downlink control information DCI, and the control information may further include fifth indication information for indicating a frequency domain resource offset value. In this case, the second preset rule may be that the target frequency domain resource is determined based on the reference frequency domain resource and the frequency domain resource offset value, and the second preset rule is sent to the terminal device by the higher layer information in advance, as described above.

Specifically, an n-bit fifth indication information indication field is added to the DCI, so that the terminal device determines the target frequency domain resource (the frequency domain resource of the target QCL parameter) based on a second preset rule and the reference frequency domain resource (the frequency domain resource of the reference QCL parameter) pre-configured by the network device. For example, a fifth indication information indication field with 2 bits is added, the 2-bit indication field may correspond to 4 field values of "00, 01, 10, 11", and the correspondence between the 4 field values and the frequency domain Resource offset value and the determined target frequency domain Resource may be referred to in table 2 and table 3, where table 2 is the frequency domain Resource offset value for the entire reference frequency domain Resource and table 3 is the frequency domain Resource offset value for the Resource Block (RB) of the reference frequency domain Resource.

TABLE 2

TABLE 3

In tables 2 and 3, BWP means Bandwidth Part (Bandwidth Part); "floor" is the operator of rounding down; the target BWP refers to the BWP corresponding to the target QCL parameters, i.e. the BWP of the TRP corresponding to the target QCL parameters.

The following describes a process of determining a target frequency domain resource based on a reference frequency domain resource and a frequency domain resource offset value with reference to a schematic diagram of the principle of determining the target frequency domain resource shown in fig. 3.

As shown in fig. 3, the vertical line indicated by reference numeral 34 represents BWP of TRP corresponding to the reference QCL parameter, the vertical line indicated by reference numeral 35 represents BWP of TRP corresponding to the target QCL parameter, the block indicated by reference numeral 31 represents the reference frequency domain resource, and if the domain value of the fifth indication information is "00" in table 2 above, the target frequency domain resource corresponding to the target QCL parameter is indicated by reference numeral 33, and the target frequency domain resource 33 is shifted with respect to the reference frequency domain resource 32 by the bandwidth indicated by the dashed-line box 32.

In a third example, the control information in step 201 may include sixth indication information, where the sixth indication information is used to indicate modulation and coding information when the physical shared channel is transmitted according to the multiple QCL parameters, and the modulation and coding information corresponding to the multiple QCL parameters is the same or the modulation and coding information corresponding to the multiple QCL parameters is different. In this case, step 201 may specifically include: and transmitting the sixth indication information through DCI.

In an implementation manner of the third example, the modulation coding information corresponding to a plurality of QCL parameters may be the same. That is, the same modulation and coding information may be used for PDSCH transmitted according to a plurality of QCL parameters, and the DCI may indicate only the modulation and coding information (which may be referred to as a shared indication) shown in table 4 below for the plurality of QCLs. As shown in table 4, the modulation coding information may include a modulation and coding strategy, a new data indication, and a redundancy version.

TABLE 4

In another implementation of the third example, the modulation coding information corresponding to a plurality of QCL parameters may be different. That is, different modulation and coding information is respectively adopted according to the PDSCH transmitted by the plurality of QCL parameters. For example, as shown in tables 5 and 6, modulation coding information corresponding to the QCL parameter i and the QCL parameter j is indicated by DCI, respectively.

TABLE 5

TABLE 6

Similarly, in addition to modulation coding information, at least one of the following information may be indicated by DCI sharing or separately: DCI format identification (Identifier for DCI formats), carrier indication field (carrier indicator), Bandwidth part indication (BWP indicator), Time domain Resource allocation (Time domain Resource assignment), Virtual Resource Block (VRB) to Physical Resource Block (PRB) mapping (VRB-to-PRB mapping), PRB bundling size indication (PRB bundling size indicator), Rate matching indication (Rate mapping), Zero Power Channel State Reference signal trigger (Zero Power Channel State Information-signaling TPC trigger, ZP-RS trigger), Downlink allocation index (PUCCH port) and HARQ feedback Time indication field (PDSCH-to-HARQ feedback indicator), scheduling command in scheduling (TPC format indicator), HARQ feedback Time indication (PDSCH-to-HARQ Time indicator), HARQ feedback (HARQ-to-feedback) field (PDSCH-to-HARQ feedback indicator), and the like, A Transmission configuration indication (Transmission configuration indication), a Sounding Reference Signal request (SRS request), Code Block Group Transmission Information (CBGTI), Code Block Group removal Information (CBGFI), and DMRS sequence initialization (DMRS sequence initialization), etc.

In a fourth example, the control information in step 201 is sent through DCI, and the control information may include seventh indication information, where the seventh indication information is used to indicate transmit power control TPC commands of a physical uplink control channel PUCCH corresponding to multiple physical shared channels, and the multiple physical shared channels are physical shared channels transmitted according to the multiple QCL parameters, where the TPC commands corresponding to the multiple QCL parameters in the seventh indication information are the same, or the TPC commands corresponding to the multiple QCL parameters in the seventh indication information are different.

In a specific implementation manner of the fourth example, 2 bits may be added to the DCI for each of the plurality of QCL parameters to indicate seventh indication information. For example, for the case of m QCL parameters in total, a seventh indication information indication field of 2m bits may be added to the DCI.

Further, in another specific implementation manner of the fourth example, since all QCL parameters may not be used in actual transmission of the physical shared channel, a seventh indication information indication field with 2n bits may be added to the DCI, where n < m, and at this time, the number of QCL parameters simultaneously scheduled by the network may be considered to be n.

In a fifth example, the Control information in step 201 is sent through DCI, and the Control information may include eighth indication information, where the eighth indication information is used to indicate a Physical Uplink Control Channel (PUCCH) resource corresponding to the Physical shared Channel.

In an implementation of the fifth example, the eighth indication information is used to indicate a first PUCCH resource, where the first PUCCH resource corresponds to the physical shared channel transmitted according to a first QCL parameter, or the first PUCCH resource corresponds to the physical shared channel transmitted according to a second QCL parameter, and the first QCL parameter and the second QCL parameter are different QCL parameters. As an example, the first QCL parameter may be the most important QCL parameter described in the second example, the first QCL parameter may be a QCL parameter other than the plurality of QCL parameters determined in the first example, and the second QCL parameter may be pre-configured by the network device.

In another implementation of the fifth example, the eighth indication information may be used to indicate a number of PUCCH resources equal to the number of the QCL parameters, and the PUCCH resources respectively correspond to the physical shared channel transmitted according to the QCL parameters.

In the above embodiments, the DCI refers to one DCI for scheduling multiple physical shared channels, and the higher layer information may be, for example, Radio Resource Control (RRC) information or MAC layer signaling.

According to the control information indicating method provided by the embodiment of the invention, the network equipment transmits the control information to the terminal equipment, so that the terminal equipment can transmit the physical shared channel according to the multiple quasi-co-located QCL parameters instead of transparently receiving the physical shared channels such as the PDSCH and the like, and the transmission effectiveness and reliability of the physical shared channel can be improved.

The above describes a control information indication method according to an embodiment of the present invention, and a control information receiving method according to an embodiment of the present invention is described below.

Fig. 4 illustrates a control information receiving method according to an embodiment of the present invention, applied to a terminal device. As shown in fig. 4, the method may include the steps of:

step 401, receiving control information, where the control information is used to instruct the terminal device to transmit a physical shared channel according to a plurality of quasi co-located QCL parameters.

Wherein the physical shared channel comprises a PDSCH and a PUSCH.

For PUSCH, the spatial transmission parameters used by the terminal device to the TRP are spatial domain transmission filter (spatial domain transmission filter) parameters. That is, similar to transmitting the PDSCH according to the QCL parameter, for the PUSCH, the PUSCH may be transmitted according to a spatial domain transmission filter (spatial domain transmission filter), in particular.

Optionally, in a first example, the control information is received through downlink control information DCI, and the control information includes first indication information for indicating the plurality of QCL parameters.

In the first manner, the control information further includes second indication information, where the second indication information is used for the terminal device to determine whether transport blocks, TBs, of the physical shared channel received according to the multiple QCL parameters are the same.

In a second manner, the second indication information may be received in an implicit manner, and specifically before receiving the DCI, the method further includes: receiving a first preset rule through high-level information, wherein the first preset rule is used for the terminal equipment to determine second indication information according to the identifier of a control resource set adopted when receiving the DCI, and the second indication information is used for the terminal equipment to determine whether the transport blocks TB of the physical shared channel transmitted according to the QCL parameters are the same or not.

In a third manner, the second indication information may also be received in an implicit manner, and specifically, before receiving the DCI, the method further includes: receiving a preset corresponding relation through high-level information, wherein the preset corresponding relation is the corresponding relation between the TCI domain value and the second indication information; the control information further includes a TCI domain value, where the TCI domain value is used to determine second indication information based on a preset correspondence, and the second indication information is used by the terminal device to determine whether the transport blocks TB of the physical shared channel transmitted according to the multiple QCL parameters are the same, where the preset correspondence is between the TCI domain value and the second indication information.

In a second example, prior to receiving the DCI, the method further comprises: receiving the fourth indication information through high-level information, wherein the control information further includes fourth indication information indicating that the frequency domain resource allocation information of the physical shared channel is transmitted according to the plurality of QCL parameters.

In a first implementation manner of the second example, the frequency-domain resource allocation information includes first frequency-domain resources, and the frequency-domain resources when the physical shared channel is transmitted according to the multiple QCL parameters are all the first frequency-domain resources.

In a second implementation manner of the second example, the frequency domain resource allocation information includes a reference frequency domain resource and a second preset rule, the reference frequency domain resource is a frequency domain resource for transmitting the physical shared channel according to a reference QCL parameter, the second preset rule is used for determining a target frequency domain resource based on the reference frequency domain resource, the target frequency domain resource is a frequency domain resource for transmitting the physical shared channel according to a target QCL parameter, and the target QCL parameter is any one of the plurality of QCL parameters.

Further, the reference QCL parameter may also be one of the plurality of QCL parameters, but the reference QCL parameter is different from the target QCL parameter.

Further, in the second implementation manner of the second example, the control information is received through downlink control information DCI, and the control information further includes fifth indication information for indicating a frequency domain resource offset value; wherein the second preset rule is to determine the target frequency domain resource based on the reference frequency domain resource and the frequency domain resource offset value.

In a third example, the control information is received through downlink control information DCI, and the control information includes sixth indication information, where the sixth indication information is used to indicate modulation and coding information when the physical shared channel is transmitted according to the multiple QCL parameters, and the modulation and coding information corresponding to the multiple QCL parameters is the same or the modulation and coding information corresponding to the multiple QCL parameters is different.

In an implementation manner of the third example, the modulation coding information corresponding to a plurality of QCL parameters may be the same. In another implementation of the third example, the modulation coding information corresponding to a plurality of QCL parameters may be different.

In a fourth example, the control information is received through downlink control information DCI, and the seventh indication information is used to indicate transmit power control TPC commands of physical uplink control channels PUCCH corresponding to a plurality of physical shared channels, where the plurality of physical shared channels are physical shared channels transmitted according to the plurality of QCL parameters; wherein the TPC commands corresponding to the QCL parameters in the seventh indication information are the same, or the TPC commands corresponding to the QCL parameters in the seventh indication information are different.

In another specific implementation manner of the fourth example, since all QCL parameters may not be used in actual transmission of the physical shared channel, a seventh indication information indication field with 2n bits may be added to the DCI, where n < m, and at this time, the number of QCL parameters scheduled by the network at the same time may be considered to be n.

In a fifth example, the control information is sent through downlink control information DCI, and the eighth indication information is fourth indication information indicating a physical uplink control channel PUCCH resource corresponding to the physical shared channel.

In an implementation of the fifth example, the eighth indication information is used to indicate a first PUCCH resource, where the first PUCCH resource corresponds to the physical shared channel transmitted according to a first QCL parameter, or the first PUCCH resource corresponds to the physical shared channel transmitted according to a second QCL parameter, and the first QCL parameter and the second QCL parameter are different QCL parameters.

According to the control information receiving method provided by the embodiment of the invention, the terminal equipment can transmit the physical shared channel according to the plurality of quasi co-located QCL parameters instead of transparently receiving the physical shared channels such as the PDSCH and the like due to the control information from the network equipment received by the terminal equipment, so that the transmission effectiveness and reliability of the physical shared channel can be improved.

Since the control information receiving method provided by the embodiment of the present invention corresponds to the control information indication method provided by the embodiment of the present invention, the description of the control information receiving method in the present specification is relatively simple, and for the relevant points, refer to the description of the control information indication method in the foregoing.

The network device and the terminal device according to the embodiments of the present invention will be described in detail below with reference to fig. 5 to 6.

Fig. 5 is a schematic structural diagram of a network device according to an embodiment of the present invention, and as shown in fig. 5, the network device 500 includes: a sending module 501.

A sending module 501, configured to send control information, where the control information is used to instruct a terminal device to transmit a physical shared channel according to multiple quasi co-located QCL parameters.

In a first example, the control information is sent through downlink control information DCI, and the control information includes first indication information for indicating the plurality of QCL parameters.

Further, based on the first example, the sending module 501 may further determine whether Transport blocks (Transport blocks, TBs) of the physical shared channel are the same according to the plurality of QCL parameters in the following manners.

In a second manner, the second indication information may be implicitly indicated to the terminal device, and specifically, before sending the DCI, the method further includes: and sending a first preset rule through high-level information, wherein the first preset rule is used for the terminal equipment to determine second indication information according to the identifier of the control resource set adopted when the DCI is received, and the second indication information is used for the terminal equipment to determine whether the transport blocks TB of the physical shared channel received according to the QCL parameters are the same or not.

In a third manner, the second indication information may also be indicated to the terminal device in an implicit manner, and specifically, before sending the DCI, the method further includes: and sending a preset corresponding relation through high-level information, wherein the preset corresponding relation is the corresponding relation between the TCI domain value and second indication information, the TCI domain value is used for determining the second indication information based on the preset corresponding relation, the second indication information is used for determining whether the transmission blocks TB of the physical shared channel received according to the QCL parameters are the same or not by the terminal equipment, and the preset corresponding relation is the corresponding relation between the TCI domain value and the second indication information.

In a second example, prior to transmitting the DCI, the method further comprises: and sending the fourth indication information through high-layer information, wherein the fourth indication information is used for indicating that the frequency domain resource allocation information of the physical shared channel is transmitted according to the QCL parameters.

In the first implementation manner of the second example, the frequency domain resource allocation information in the fourth indication information may include a first frequency domain resource, and the frequency domain resources when the physical shared channel is transmitted according to the plurality of QCL parameters are all the first frequency domain resources. That is, the higher layer information may configure the physical shared channel transmitted according to the multiple QCL parameters to use the same frequency domain resources.

Further, in the second implementation manner of the second example, the control information is sent through downlink control information DCI, and the control information may further include fifth indication information for indicating a frequency domain resource offset value; wherein the second predetermined rule is to determine the target frequency domain resource based on the reference frequency domain resource and the frequency domain resource offset value.

In a third example, the control information is sent through downlink control information DCI, and the sixth indication information is used to indicate modulation and coding information when the physical shared channel is transmitted according to the multiple QCL parameters, where the modulation and coding information corresponding to the multiple QCL parameters is the same or the modulation and coding information corresponding to the multiple QCL parameters is different.

In a fourth example, the control information is sent through DCI, and the control information includes seventh indication information, where the seventh indication information is used to indicate transmit power control TPC commands of a physical uplink control channel PUCCH corresponding to multiple physical shared channels, and the multiple physical shared channels are physical shared channels transmitted according to the multiple QCL parameters; wherein the TPC commands corresponding to the QCL parameters in the seventh indication information are the same, or the TPC commands corresponding to the QCL parameters in the seventh indication information are different.

In a fifth example, the control information is sent through DCI, and the control information includes eighth indication information, where the eighth indication information is used to indicate a PUCCH resource of a physical uplink control channel corresponding to the physical shared channel.

In another implementation manner of the fifth example, the eighth indication information is used to indicate a number of PUCCH resources equal to the number of the QCL parameters, and the PUCCH resources respectively correspond to the physical shared channel transmitted according to the QCL parameters.

The network device 500 provided in the embodiment shown in fig. 5 may transmit the physical shared channel according to the multiple quasi-co-located QCL parameters instead of transparently receiving the physical shared channel such as the PDSCH due to the control information sent to the terminal device, so that the effectiveness and reliability of the physical shared channel transmission may be improved.

The network device 500 shown in fig. 5 may be used to implement various embodiments of the downlink signaling method shown in fig. 3, and please refer to the above method embodiments for relevant matters.

Fig. 6 shows a schematic structural diagram of a terminal device according to an embodiment of the present invention, and as shown in fig. 6, the terminal device 600 includes: a receiving module 601.

A receiving module 601, configured to receive control information, where the control information is used to instruct the terminal device to transmit a physical shared channel according to multiple quasi co-located QCL parameters.

Wherein the physical shared channel comprises a PDSCH and a PUSCH.

In a second manner, the second indication information may be received in an implicit manner, and specifically, before receiving the DCI, the method further includes: receiving a first preset rule through high-level information, wherein the first preset rule is used for the terminal equipment to determine second indication information according to the identifier of a control resource set adopted when receiving the DCI, and the second indication information is used for the terminal equipment to determine whether the transport blocks TB of the physical shared channel transmitted according to the QCL parameters are the same or not.

In a third manner, the second indication information may also be received in an implicit manner, and specifically, before receiving the DCI, the method further includes: receiving a preset corresponding relation through high-level information, wherein the preset corresponding relation is a corresponding relation between the TCI domain value and the second indication information, the TCI domain value is used for determining the second indication information based on the preset corresponding relation, the second indication information is used for the terminal equipment to determine whether the transmission blocks TB of the physical shared channel transmitted according to the QCL parameters are the same, and the preset corresponding relation is a corresponding relation between the TCI domain value and the second indication information.

In a second example, prior to receiving the DCI, the method further comprises: receiving the fourth indication information through higher layer information, where the fourth indication information is used to indicate that frequency domain resource allocation information of the physical shared channel is transmitted according to the plurality of QCL parameters.

Further, in the second implementation manner of the second example, the control information is received through downlink control information DCI, and the control information may further include fifth indication information for indicating a frequency domain resource offset value; wherein the second preset rule is to determine the target frequency domain resource based on the reference frequency domain resource and the frequency domain resource offset value.

In a fourth example, the control information is received through downlink control information DCI, and the control information further includes seventh indication information, where the seventh indication information is used to indicate transmit power control TPC commands of physical uplink control channels PUCCH corresponding to multiple physical shared channels, and the multiple physical shared channels are physical shared channels transmitted according to the multiple QCL parameters; wherein the TPC commands corresponding to the QCL parameters in the seventh indication information are the same, or the TPC commands corresponding to the QCL parameters in the seventh indication information are different.

In a fifth example, the control information is sent through downlink control information DCI, and the control information includes eighth indication information, where the eighth indication information is used to indicate fourth indication information of a physical uplink control channel PUCCH resource corresponding to the physical shared channel.

According to the terminal device 600 provided by the embodiment of the present invention, since the control information from the network device is received, the terminal device can transmit the physical shared channel according to the multiple quasi co-located QCL parameters instead of transparently receiving the physical shared channels such as the PDSCH, and therefore, the effectiveness and reliability of the transmission of the physical shared channel can be improved.

The terminal device 600 shown in fig. 6 may be used to implement various embodiments of the downlink signal receiving method shown in fig. 4, and please refer to the above method embodiments for relevant points.

Referring to fig. 7, fig. 7 is a structural diagram of a network device applied in the embodiment of the present invention, which can implement the details of the control information indication method and achieve the same effect. As shown in fig. 7, the network device 700 includes: a processor 701, a transceiver 702, a memory 703, a user interface 704 and a bus interface, wherein:

in this embodiment of the present invention, the network device 700 further includes: the computer program stored in the memory 703 and capable of running on the processor 701 is executed by the processor 701 to implement the processes of the control information indication method, and can achieve the same technical effects, and is not described herein again to avoid repetition.

In fig. 7, the bus architecture may include any number of interconnected buses and bridges, with at least one processor, represented by processor 701, and various circuits, represented by memory 703, being linked together. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 702 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 704 may also be an interface capable of interfacing with a desired device for different end devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 701 is responsible for managing the bus architecture and general processing, and the memory 703 may store data used by the processor 701 in performing operations.

Fig. 8 is a schematic structural diagram of a terminal device according to another embodiment of the present invention. The terminal apparatus 800 shown in fig. 8 includes: at least one processor 801, memory 802, at least one network interface 804, and a user interface 803. The various components in the terminal device 800 are coupled together by a bus system 805. It is understood that the bus system 805 is used to enable communications among the components connected. The bus system 805 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 805 in fig. 8.

The user interface 803 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.

It will be appreciated that the memory 802 in embodiments of the invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of illustration and not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous SDRAM (ESDRAM), Sync Link DRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 802 of the subject systems and methods described in connection with the embodiments of the invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some embodiments, memory 802 stores the following elements, executable modules or data structures, or a subset thereof, or an expanded set thereof: an operating system 8021 and application programs 8022.

The operating system 8021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 8022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. A program implementing a method according to an embodiment of the present invention may be included in application program 8022.

In this embodiment of the present invention, the terminal device 800 further includes: a computer program stored in the memory 802 and capable of running on the processor 801, wherein the computer program, when executed by the processor 801, implements the processes of the control information receiving method described above, and can achieve the same technical effects, and in order to avoid repetition, the details are not described here again.

The methods disclosed in the embodiments of the present invention described above may be implemented in the processor 801 or implemented by the processor 801. The processor 801 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 801. The Processor 801 may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may reside in ram, flash memory, rom, prom, or eprom, registers, among other computer-readable storage media known in the art. The computer readable storage medium is located in the memory 802, and the processor 801 reads the information in the memory 802, and combines the hardware to complete the steps of the method. In particular, the computer readable storage medium has stored thereon a computer program which, when executed by the processor 801, implements the steps of the control information receiving method embodiment as described above.

It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the Processing unit may be implemented in at least one Application Specific Integrated Circuit (ASIC), a Digital Signal Processor (DSP), a Digital Signal Processing Device (DSPD), a Programmable Logic Device (PLD), a Field Programmable Gate Array (FPGA), a general purpose processor, a controller, a microcontroller, a microprocessor, other electronic units for performing the functions of the invention, or a combination thereof.

For a software implementation, the techniques described in this disclosure may be implemented with modules (e.g., procedures, functions, and so on) that perform the functions described in this disclosure. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements each process of the control information indication method or the control information receiving method, and can achieve the same technical effect, and is not described herein again to avoid repetition. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.

An embodiment of the present invention further provides a computer program product including instructions, and when a computer runs the instructions of the computer program product, the computer executes the control information indication method or the control information receiving method. In particular, the computer program product may be run on the network device described above.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

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

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A control information indication method is applied to a network device, and the method comprises the following steps:

sending control information through Downlink Control Information (DCI), wherein the control information is used for indicating terminal equipment to transmit a physical shared channel according to a plurality of quasi co-located QCL parameters and a plurality of sending and receiving points (TRP), one QCL parameter corresponds to one sending and receiving point (TRP), and one QCL parameter is a set formed by a group of large-scale parameters; wherein the DCI is used to schedule the multiple TRP transmission physical shared channel;

wherein:

the control information comprises second indication information, and the second indication information is used for the terminal equipment to determine whether the Transport Blocks (TBs) of the physical shared channel received according to the plurality of QCL parameters are the same; alternatively, the first and second electrodes may be,

before transmitting the DCI, the method further comprises: sending a first preset rule through high-level information; the first preset rule is used for the terminal equipment to determine the second indication information according to the identifier of the control resource set adopted when the DCI is received; alternatively, the first and second electrodes may be,

before transmitting the DCI, the method further comprises: sending a preset corresponding relation through high-level information, wherein the preset corresponding relation is the corresponding relation between the TCI domain value and the second indication information; the control information further includes a TCI field value, and the TCI field value is used to determine the second indication information based on the preset correspondence.

2. The method of claim 1,

the physical shared channel comprises a physical downlink shared channel PDSCH and a physical uplink shared channel PUSCH.

3. The method of claim 1, wherein said control information comprises first indication information for indicating said plurality of QCL parameters.

4. The method of claim 1, wherein prior to transmitting the DCI, the method further comprises: and sending fourth indication information through high-layer information, wherein the fourth indication information is used for indicating the frequency domain resource allocation information of the physical shared channel transmitted according to the QCL parameters.

5. The method of claim 4,

the frequency domain resource allocation information comprises first frequency domain resources, wherein the frequency domain resources when the physical shared channel is transmitted according to the QCL parameters are the first frequency domain resources; alternatively, the first and second electrodes may be,

the frequency domain resource allocation information includes reference frequency domain resources and a second preset rule, the reference frequency domain resources are frequency domain resources transmitted according to reference QCL parameters, the second preset rule is used for determining target frequency domain resources based on the reference frequency domain resources, the target frequency domain resources are frequency domain resources transmitted according to target QCL parameters, and the target QCL parameters are any one of the QCL parameters.

6. The method of claim 5,

the control information further includes fifth indication information for indicating a frequency domain resource offset value;

wherein the second preset rule is to determine the target frequency domain resource based on the reference frequency domain resource and the frequency domain resource offset value.

7. The method of claim 1,

the control information includes sixth indication information, where the sixth indication information is used to indicate modulation and coding information when the physical shared channel is transmitted according to the plurality of QCL parameters, and the modulation and coding information corresponding to the plurality of QCL parameters is the same or the modulation and coding information corresponding to the plurality of QCL parameters is different.

8. The method of claim 1,

the control information includes seventh indication information, where the seventh indication information is used to indicate transmit power control, TPC, commands of a physical uplink control channel, PUCCH, corresponding to a plurality of physical shared channels, and the plurality of physical shared channels are physical shared channels transmitted according to the plurality of QCL parameters;

wherein the TPC commands corresponding to the QCL parameters in the seventh indication information are the same, or the TPC commands corresponding to the QCL parameters in the seventh indication information are different.

9. The method of claim 1,

the control information includes eighth indication information, where the eighth indication information is used to indicate a physical uplink control channel PUCCH resource corresponding to the physical shared channel.

10. The method of claim 9,

the eighth indication information is used to indicate a first PUCCH resource corresponding to the physical shared channel transmitted according to a first QCL parameter, or the first PUCCH resource corresponding to the physical shared channel transmitted according to a second QCL parameter, the first QCL parameter and the second QCL parameter being different QCL parameters.

11. The method of claim 9,

the eighth indication information is used to indicate a plurality of PUCCH resources equal in number to the plurality of QCL parameters, and the plurality of PUCCH resources respectively correspond to the physical shared channel transmitted according to the plurality of QCL parameters.

12. A control information receiving method is applied to a terminal device, and comprises the following steps:

receiving control information through Downlink Control Information (DCI), wherein the control information is used for indicating the terminal equipment to transmit a physical shared channel according to a plurality of quasi co-located QCL parameters and multiple Transmitting and Receiving Points (TRP), one QCL parameter corresponds to one Transmitting and Receiving Point (TRP), and one QCL parameter is a set formed by a group of large-scale parameters; wherein the DCI is used to schedule the multiple TRP transmission physical shared channel;

wherein:

prior to receiving the DCI, the method further comprises: receiving a first preset rule through high-level information; the control information further includes a first preset rule, where the first preset rule is used for the terminal device to determine the second indication information according to an identifier of a control resource set adopted when receiving the DCI; alternatively, the first and second electrodes may be,

prior to receiving the DCI, the method further comprises: receiving a preset corresponding relation through high-level information, wherein the preset corresponding relation is the corresponding relation between the TCI domain value and the second indication information; the control information further includes a TCI domain value, where the TCI domain value is used to determine the second indication information based on the preset correspondence, and the preset correspondence is a correspondence between the TCI domain value and the second indication information.

13. The method of claim 12,

14. The method of claim 12, wherein said control information comprises first indication information for indicating said plurality of QCL parameters.

15. The method of claim 12, wherein prior to receiving the DCI, the method further comprises: receiving fourth indication information through higher layer information, wherein the fourth indication information is used for indicating frequency domain resource allocation information of the physical shared channel transmitted according to the plurality of QCL parameters.

16. The method of claim 15,

17. The method of claim 16,

18. The method of claim 12,

19. The method of claim 12,

the control information comprises seventh indication information, the seventh indication information is used for indicating a Transmit Power Control (TPC) command of a Physical Uplink Control Channel (PUCCH) corresponding to a plurality of physical shared channels, and the plurality of physical shared channels are physical shared channels transmitted according to the plurality of QCL parameters;

20. The method of claim 12,

the control information includes eighth indication information, and the eighth indication information is used for indicating fourth indication information of a Physical Uplink Control Channel (PUCCH) resource corresponding to the physical shared channel.

21. The method of claim 20,

22. The method of claim 20,

23. A network device, characterized in that the network device comprises:

a sending module, configured to send control information through downlink control information DCI, where the control information is used to instruct a terminal device to transmit a physical shared channel according to multiple quasi co-located QCL parameters and multiple sending and receiving points TRP, where one QCL parameter corresponds to one sending and receiving point TRP, and one QCL parameter is a set formed by a group of large-scale parameters; wherein the DCI is used to schedule the multiple TRP transmission physical shared channel;

wherein:

the sending module is further configured to send a first preset rule through high-level information before sending the DCI; the first preset rule is used for the terminal equipment to determine the second indication information according to the identifier of the control resource set adopted when the DCI is received; alternatively, the first and second electrodes may be,

the sending module is further configured to send a preset correspondence relationship through high-level information before sending the DCI, where the preset correspondence relationship is a correspondence relationship between a TCI domain value and the second indication information; the control information further includes a TCI field value, and the TCI field value is used to determine the second indication information based on the preset correspondence.

24. A terminal device, characterized in that the terminal device comprises:

a receiving module, configured to receive control information through downlink control information DCI, where the control information is used to instruct a terminal device to transmit a physical shared channel according to multiple quasi co-located QCL parameters and multiple sending and receiving points TRP, where one QCL parameter corresponds to one sending and receiving point TRP, and one QCL parameter is a set formed by a group of large-scale parameters; wherein the DCI is used to schedule the multiple TRP transmission physical shared channel;

wherein the control information comprises second indication information, and the second indication information is used for the terminal equipment to determine whether the Transport Blocks (TBs) of the physical shared channel received according to the plurality of QCL parameters are the same; alternatively, the first and second electrodes may be,

the receiving module is further configured to receive a first preset rule through high-level information before receiving the DCI; the control information further includes a first preset rule, where the first preset rule is used for the terminal device to determine the second indication information according to an identifier of a control resource set adopted when receiving the DCI; alternatively, the first and second electrodes may be,

the receiving module is further configured to receive a preset correspondence relationship through high-level information before receiving the DCI, where the preset correspondence relationship is a correspondence relationship between a TCI domain value and the second indication information; the control information further includes a TCI domain value, where the TCI domain value is used to determine the second indication information based on the preset correspondence, and the preset correspondence is a correspondence between the TCI domain value and the second indication information.

25. A network device comprising a memory, a processor, and a wireless communication program stored on the memory and executed on the processor, the wireless communication program when executed by the processor implementing the steps of the method of any one of claims 1-11.

26. A terminal device, characterized in that it comprises a memory, a processor and a wireless communication program stored on said memory and running on said processor, said wireless communication program, when executed by said processor, implementing the steps of the method according to any one of claims 12-22.

27. A computer readable medium having stored thereon a wireless communication program which, when executed by a processor, carries out the steps of the method according to any one of claims 1-22.