CN117676873A

CN117676873A - Uplink resource indication method and communication device

Info

Publication number: CN117676873A
Application number: CN202210963337.7A
Authority: CN
Inventors: 袁世通; 樊波; 李芳�
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2022-08-11
Filing date: 2022-08-11
Publication date: 2024-03-08
Also published as: WO2024032180A1

Abstract

The application discloses an uplink resource indication method and a communication device, and relates to the field of communication; the uplink resource indication method is applied to terminal equipment and comprises the following steps: receiving first indication information for indicating a first beam and second indication information for indicating Sounding Reference Signal (SRS) resources from network equipment, wherein the SRS resources indicate transmission parameters including a second beam when terminal equipment communicates with a receiving node (TRP); determining the second beam as an uplink beam of the terminal device in case that the first beam is different from the second beam; the method solves the problem that the terminal equipment cannot determine the uplink resource under the condition that the uplink resource of the transmission configuration indication TCI is inconsistent with the uplink resource indicated by the detection signal resource index SRI.

Description

Uplink resource indication method and communication device

Technical Field

The present invention relates to the field of communications, and in particular, to an uplink resource indication method and a communication device.

Background

In communication standard version Rel-17, the power Control parameters of the uplink channel are directly configured in beam indication information, which is called a transmission configuration indication state (transmission configuration indicator state, TCI state) in the protocol, and the beam indication information includes a dlorpoint-transmission configuration indication tcist-r 17, a UL-transmission configuration indication tcist-r 17, and UL-power Control-r17. Wherein, the DLorPoint-transmission configuration indication TCIstate-r17 is the transmission configuration indication TCI which can be used for uplink and downlink, and the UL-transmission configuration indication TCI state-r17 is the transmission configuration indication state TCI state which can only be used for uplink. The UE is configured by the base station in either mode. ul-power Control-r17 configures a set of power Control parameters including an uplink physical uplink shared channel, an uplink Control channel (physical uplink Control channel, PUCCH) and a sounding reference signal (sounding reference signal, SRS). Therefore, in the framework of Rel-17, by determining the beam (transmission configuration indication TCI state) of the uplink transmission, the power control parameters of the uplink transmission can be further determined.

In a multiple transmission reception point (multi transmitting receiving point, MTRP) scenario, the communication standard version Rel-17 specifies that the power control parameters of the uplink transmission can be indicated by an uplink sounding signal resource index (sounding resource index, SRI) field in a downlink control indication (downlink control indication, DCI).

In the case that the uplink resource of the transmission configuration indication TCI is inconsistent with the uplink resource indicated by the sounding signal resource index SRI, the terminal device cannot determine the uplink resource.

Disclosure of Invention

The embodiment of the application provides an uplink resource indication method and a communication device, which are used for solving the problem that terminal equipment cannot determine uplink resources under the condition that uplink resources of a transmission configuration indication TCI are inconsistent with uplink resources indicated by a detection signal resource index SRI.

In order to achieve the above purpose, the embodiments of the present application adopt the following technical solutions:

in a first aspect, an uplink resource indication method is provided, where the method is applied to a terminal device, and the method includes:

receiving first indication information for indicating a first beam and second indication information for indicating Sounding Reference Signal (SRS) resources from network equipment, wherein the SRS resources indicate transmission parameters including a second beam when terminal equipment communicates with a receiving node (TRP); in case the first beam is different from the second beam, the second beam is determined as an uplink beam of the terminal device.

In the embodiment of the present application, when the network device sends the first beam and the second beam corresponding to the first indication information and the second indication information to the terminal device are different, the beam indicated by the SRS resource is determined to be the uplink beam of the terminal device, so that the uplink beam of the terminal device can be determined efficiently, and the beam quality is better, so that the current communication environment of the terminal device can be matched.

In one implementation, the transmission parameter further indicates a first power control parameter, the method further comprising:

in case the first beam is different from the second beam, the first power control parameter is determined as a power control parameter of an uplink channel of the terminal device.

In the embodiment of the present application, when the first beam and the second beam are different, the first power control parameter is determined as the power control parameter of the uplink channel of the terminal device, where the first power control parameter is indicated by the transmission parameter in the SRS resource, so that it is ensured that the determined power control parameter of the uplink channel of the terminal device matches the actual communication condition of the terminal device.

In one implementation, the method further comprises:

determining the power control parameter indicated by the first indication information as the power control parameter of the uplink channel; or determining the preset power control parameter as the power control parameter of the uplink channel; alternatively, the power control parameters of the uplink channel are determined from specially configured power control parameters carried in an independently configured fractional bandwidth BWP configuration.

In the embodiment of the present invention, a plurality of technical means for determining the power control parameter of the uplink channel under the condition that the sounding reference signal SRS resource indicated by the second indication information does not include the power control parameter are provided, so that the power control parameter of the uplink channel can be comprehensively determined, and it is ensured that the determined power control parameter of the uplink channel of the terminal device matches with the actual communication condition of the terminal device.

And determining the power control parameters of the uplink channel by the specially configured power control parameters, so that the determined power control parameters of the uplink channel of the terminal equipment are ensured to be matched with the actual communication conditions of the terminal equipment.

In one implementation, the first beam and the second beam each comprise one or more beams, the method further comprising:

comparing the first beam with the second beam according to the comparison corresponding relation of SRS resource indication to obtain a comparison result; and determining the beams with the same and corresponding comparison results as uplink beams of the terminal equipment.

In the embodiment of the invention, the first beam and the second beam are compared according to the comparison corresponding relation of SRS resource indication to obtain the comparison result, and then the beam with the same corresponding comparison result is determined to be the uplink beam of the terminal equipment.

In one implementation, the first beam includes a third beam and a fourth beam, the second beam includes a fifth beam and a sixth beam, and in case the second indication information includes the first preset information, the method further includes:

comparing whether the third beam and the fifth beam are the same or not, or comparing whether the third beam and the sixth beam are the same or not, and obtaining a first comparison result; comparing whether the fourth beam and the sixth beam are the same or not, or comparing whether the fourth beam and the fifth beam are the same or not, and obtaining a second comparison result; in the case that the first beam is different from the second beam, determining the second beam as an uplink beam of the terminal device includes: and determining the fifth beam and/or the sixth beam as an uplink beam when at least one of the first comparison result and the second comparison result is different.

In the embodiment of the application, a means for determining power control parameters of an uplink beam and an uplink channel by a terminal device in a dynamic beam switching scene is provided, so that the terminal device can determine the uplink beam meeting the current communication condition in time.

In one implementation, the first indication information includes first transmission configuration indication status information indicating the first beam, the SRS resource includes second transmission configuration indication status information including transmission parameters including the second beam; the first beam is different from the second beam, comprising: the at least one first beam indicated by the first transmission configuration indication status information is identified differently from the at least one second beam indicated by the second transmission configuration indication status information; and/or the first transmission configuration indication state information is different from the reference signal of the second transmission configuration indication state information; and/or the first transmission configuration indication state information is of a different type than the second transmission configuration indication state information; and/or, the uplink power control parameter associated with the at least one first beam indicated by the first transmission configuration indication status information is different from the uplink power control parameter associated with the at least one second beam indicated by the second transmission configuration indication status information.

In the embodiment of the present invention, whether the first beam and the second beam are identical or not is determined by the beam identifiers, the reference signals, the types of the transmission configuration indication status information and the uplink power control parameters, which respectively correspond to the first beam and the second beam, so that the difference between the first beam and the second beam can be determined efficiently.

In the embodiment of the present application, a plurality of technical means for determining whether the first beam and the second beam are the same are provided, specifically, whether the first beam and the second beam are the same may be determined by source reference signals corresponding to the first beam and the second beam respectively, whether the first beam and the second beam are the same may also be determined by the type of the first transmission configuration indication status information and the second transmission configuration indication status information, and whether the first beam and the second beam are the same may also be determined by uplink power control parameters indicated by the first transmission configuration indication status information and the second transmission configuration indication status information, so that the difference between the first beam and the second beam may be determined efficiently.

In a second aspect, there is provided an uplink resource indication method, where the method is applied to a network device, and the method includes:

and sending first indication information for indicating the first beam and second indication information for indicating SRS resources of the sounding reference signal to the terminal equipment, wherein the SRS resources indicate transmission parameters including the second beam when the terminal equipment communicates with the receiving-transmitting node TRP, and the first beam and the second beam can be used for determining an uplink beam of the terminal equipment.

In a third aspect, a communication device is provided, where the device is applied to a terminal device, and each module in the device has a function of implementing a corresponding step in the method described in the first aspect, and achieves a corresponding technical effect. The corresponding beneficial effects of the execution steps of each module may refer to the description of the corresponding steps in the description method of the first aspect, and will not be repeated. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. The communication means may be a terminal device or a chip or a system on chip in a terminal device. Such as: the communication device includes: comprising the following steps:

a receiving module, configured to receive, from a network device, first indication information for indicating a first beam and second indication information for indicating a sounding reference signal SRS resource, where the SRS resource indicates a transmission parameter including the second beam when the terminal device communicates with a transceiver node TRP; and the processing module is used for determining the second beam as an uplink beam of the terminal equipment when the first beam is different from the second beam.

In one implementation, the transmission parameter further indicates a first power control parameter, and the processing module is further configured to:

In one implementation, the processing module is further to:

determining the power control parameter indicated by the first indication information as the power control parameter of the uplink channel; or determining the preset power control parameter as the power control parameter of the uplink channel; or, determining the power control parameters of the uplink channel by using the specially configured power control parameters; wherein the specifically configured power control parameters are carried in an independently configured fractional bandwidth BWP configuration.

In one implementation, the first beam and the second beam each comprise one or more beams, and the processing module is further configured to:

In one implementation, the first beam includes a third beam and a fourth beam, the second beam includes a fifth beam and a sixth beam, and the processing module is further configured to, in a case where the second indication information includes the first preset information:

In a fourth aspect, a communication device is provided, where the device is applied to a network apparatus, and each module in the device has a function of implementing a corresponding step in the method described in the first aspect, and achieves a corresponding technical effect. The corresponding beneficial effects of the execution steps of each module may refer to the description of the corresponding steps in the description method of the first aspect, and will not be repeated. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. The communication means may be a network device or a chip or a system on a chip in a network device. Such as: the communication device includes: comprising the following steps:

a transmitting module, configured to transmit, to a terminal device, first indication information for indicating a first beam and second indication information for indicating a sounding reference signal SRS resource, where the SRS resource indicates a transmission parameter including a second beam when the terminal device communicates with a transceiver node TRP, and the first beam and the second beam can be used to determine an uplink beam of the terminal device.

In a fifth aspect, the present application provides a communication device comprising a processor and a transceiver for supporting the communication device to perform the method of the first aspect. Further, the communication device may further comprise a memory storing computer instructions which, when executed by the processor, perform the method of the first aspect.

In a sixth aspect, there is provided a communication system comprising: network equipment and terminal equipment; the network device is configured to send, to the terminal device, first indication information for indicating the first beam and second indication information for indicating a sounding reference signal SRS resource, where the SRS resource indicates a transmission parameter including the second beam when the terminal device communicates with the transceiver node TRP; the terminal equipment is used for receiving the first indication information and the second indication information from the network equipment; and determining the second beam as an uplink beam of the terminal device in case the first beam is different from the second beam.

In a seventh aspect, the present application provides a computer readable storage medium storing computer instructions which, when executed, perform the method of the first aspect.

In an eighth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to perform the method of the first aspect described above.

In a ninth aspect, the present application provides a chip comprising a processor and a transceiver for supporting a communication device to perform the method of the first aspect.

The advantages described in the third aspect to the ninth aspect of the present application may correspond to the advantageous effect analysis referred to in the first aspect or the second aspect, and are not described herein.

Drawings

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application;

fig. 2 is a flow chart of an uplink resource indication method provided in the embodiment of the present application;

fig. 3 is a schematic diagram of a downlink resource indication flow provided in an embodiment of the present application;

fig. 4 is a flowchart of another uplink resource indication method provided in the embodiment of the present application;

fig. 5 is a schematic diagram of another downlink resource indication flow provided in an embodiment of the present application;

fig. 6 is a schematic structural diagram of a communication device according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of another communication device according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of another communication system according to an embodiment of the present application.

Detailed Description

The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. Wherein, in the description of the present application, "/" means that the related objects are in a "or" relationship, unless otherwise specified, for example, a/B may mean a or B; the term "and/or" in this application is merely an association relation describing an association object, and means that three kinds of relations may exist, for example, a and/or B may mean: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. Also, in the description of the present application, unless otherwise indicated, "a plurality" means two or more than two. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b, or c may represent: a, b, c, a-b, a-c, b-c, or a-b-c, wherein a, b, c may be single or plural. In addition, in order to clearly describe the technical solutions of the embodiments of the present application, in the embodiments of the present application, the words "first", "second", and the like are used to distinguish the same item or similar items having substantially the same function and effect. It will be appreciated by those of skill in the art that the words "first," "second," and the like do not limit the amount and order of execution, and that the words "first," "second," and the like do not necessarily differ. Meanwhile, in the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion that may be readily understood.

In addition, the network architecture and the service scenario described in the embodiments of the present application are for more clearly describing the technical solution of the embodiments of the present application, and do not constitute a limitation on the technical solution provided in the embodiments of the present application, and as a person of ordinary skill in the art can know, with evolution of the network architecture and appearance of a new service scenario, the technical solution provided in the embodiments of the present application is also applicable to similar technical problems.

Before introducing embodiments of the present application, some of the terms involved in the embodiments of the present application are explained.

Beam (beam): a beam is a communication resource. The beam may be a wide beam, or a narrow beam, or other type of beam. The technique of forming the beam may be a beam forming technique or other means of technique. The beamforming technique may be embodied as a digital beamforming technique, an analog beamforming technique, a hybrid digital/analog beamforming technique. Different beams may be considered different resources. The same information or different information may be transmitted through different beams. Alternatively, a plurality of beams having the same or similar communication characteristics may be regarded as one beam. One beam may include one or more antenna ports for transmitting data channels, control channels, probe signals, etc., for example, a transmit beam may refer to a distribution of signal strengths formed in spatially different directions after signals are transmitted through an antenna, and a receive beam may refer to a signal strength distribution of wireless signals received from the antenna in spatially different directions. It is understood that one or more antenna ports forming a beam may also be considered as a set of antenna ports. When the low frequency or the medium frequency band is used, signals can be sent omnidirectionally or through a wider angle, and when the high frequency band is used, due to the smaller carrier wave wavelength of a high frequency communication system, an antenna array formed by a plurality of antenna arrays can be arranged at a transmitting end and a receiving end, the transmitting end transmits signals with a certain beam forming weight, so that the transmitted signals form beams with space directivity, and meanwhile, the receiving end receives the signals with the antenna array with the certain beam forming weight, so that the receiving power of the signals at the receiving end can be improved, and the path loss is resisted.

Quasi co-location (QCL): the co-ordination relationship is used to indicate that the plurality of resources have one or more identical or similar communication characteristics therebetween, and the same or similar communication configuration may be employed for the plurality of resources having the co-ordination relationship. For example, if two antenna ports have a co-located relationship, the channel large-scale characteristics of one port transmitting one symbol can be inferred from the channel large-scale characteristics of the other port transmitting one symbol. The large scale characteristics may include: delay spread, average delay, doppler spread, doppler shift, average gain, reception parameters, terminal device reception beam number, transmit/receive channel correlation, reception angle of Arrival, spatial correlation of receiver antennas, angle of main Arrival (AoA), average angle of Arrival, extension of AoA, etc. Specifically, the parity indication is used for indicating whether the at least two groups of antenna ports have a parity relationship: the parity indication is used for indicating whether channel state information reference signals sent by the at least two groups of antenna ports are from the same transmission point or whether channel state information reference signals sent by the at least two groups of antenna ports are from the same beam group.

Reference signal (reference signal): according to the protocol of the long term evolution LTE/NR, at the physical layer, the uplink communication comprises an uplink physical channel and transmission of an uplink signal. Wherein the uplink physical channels include a random access channel (random access channel, PRACH), an uplink control channel (physical uplink control channel, PUCCH), an uplink data channel (physical uplink shared channel, PUSCH), etc., the uplink signals include a channel sounding signal SRS, an uplink control channel demodulation reference signal (PUCCH de-modulation reference signal, PUCCH-DMRS), an uplink data channel demodulation reference signal PUSCH-DMRS, an uplink phase noise tracking signal (phase noise tracking reference signal, PTRS), an uplink positioning signal (uplink positioning RS), etc. The downlink communication includes transmission of downlink physical channels and downlink signals. Wherein the downlink physical channels include a broadcast channel (physical broadcast channel, PBCH), a downlink control channel (physical downlink control channel, PDCCH), a downlink data channel (physical downlink shared channel, PDSCH), etc., the downlink signals include a primary synchronization signal (primary synchronization signal, abbreviated PSS)/a secondary synchronization signal (secondary synchronization signal, SSS), a downlink control channel demodulation reference signal PDCCH-DMRS, a downlink data channel demodulation reference signal PDSCH-DMRS, a phase noise tracking signal PTRS, a channel state information reference signal (channel status information reference signal, CSI-RS), a cell signal (cell reference signal, CRS) (NR not), a fine synchronization signal (time/frequency tracking reference signal, TRS) (LTE not), an LTE/NR positioning signal (positioning RS), etc.

Transmission configuration indicates TCI: the higher layer in the protocol configures QCL by transmitting a configuration indication TCI-state, where a parameter of the configuration indication TCI-state is used to configure quasi-co-ordination between one or two downlink reference signals and DMRS of PDSCH, and the configuration indication TCI is a field in the downlink control indication DCI used to indicate quasi-co-ordination of PDSCH antenna ports. The transport configuration indication TCI is configured by radio resource control (radio resource control, RRC), referred to in the configuration signaling as transport configuration indication TCI-state. After RRC configuration, one or more transmission configuration indication states TCI state are activated by a base station transmitting medium access control element (MAC-CE). When the MAC-CE activates a plurality of transmission configuration indication states TCI state, the base station may further transmit a downlink control indication DCI indicating one of the plurality of activated transmission configuration indications TCI. The transmission configuration indicates that the TCI comprises one or two QCL relations, which characterize a certain consistency relation between the signal/channel currently to be received and a certain reference signal known before. If a QCL relationship exists, the UE may inherit the reception or transmission parameters of a previously received reference signal to receive or transmit the upcoming signal/channel. If the transmission configuration indication state TCI state contains information identified as QCL Type-D, the transmission configuration indication TCI may be used to indicate a beam. The QCL Type-a/B/C is used for indicating information such as time domain offset and frequency domain offset, and is generally used for assisting the terminal device in data receiving demodulation, except for spatial domain information.

In communication standard release Rel-16, the transmit power of the physical uplink shared channel (physical uplink shared channel, PUSCH) of the uplink data channel is determined based on several parameters: parameters P0 (reference power or nominal power), alpha (path loss compensation factor, value range 0-1) and closed loop index (close loop index). The above parameters may be indicated by an uplink sounding signal resource index (sounding resource index, SRI) field in a downlink control indication (downlink control indication, DCI) of the scheduled uplink, or for uplink control channel PUCCH and sounding reference signal SRS, reference power or nominal power, one or more of a pathloss compensation factor and a closed loop index may be configured in the corresponding resource configuration.

Under the framework of Rel-17, mTRP supports two uplink sounding signal resource index SRI fields, each indicating the transmit beam of the physical uplink shared channel, similar to communication standard version Rel-16. The physical uplink shared channel beam of Rel-17 is not based on the uplink transmission configuration indication TCI, but is determined from the uplink sounding signal resource index SRI indication. In the mTRP of Rel-17, in addition to the downlink control indication indicating two uplink sounding signal resource index SRI fields, as shown in table 1, a 2-bit length SRS resource set indication (SRS resource set indicator) may be included. The physical uplink shared channel transmission can be backed to be transmitted by a single sending receiving point TRP, and two sending receiving points TRP or a switching beam sequence can be supported. For example, "00" indicates that although there are two uplink sounding reference signal resource index SRI fields (each corresponding to one TRP), the PUSCH resource scheduled at this time is transmitted based only on the parameter indicated by the uplink sounding reference signal resource index SRI corresponding to TRP 0.

TABLE 1

It can be seen that the uplink resource determining method specified by Rel-17 is only applicable to uplink transmission of a single channel, and in a scenario of transmission of a plurality of channels, for example, a scenario of beam switching sequence, how to determine the power control parameters is not clear yet, and cannot be used for transmission of a plurality of channels. The power control parameters are determined by power control parameter sets, each including a set ID, and power control parameters of one or more channels or signals in PUCCH, PUSCH, SRS. For any one of the channels or signals, the parameters specifically include one or more of P0 (reference power or nominal power), alpha (path loss compensation factor, with a value ranging from 0 to 1) and closed loop index (closed loop index). The transmission parameter further indicates that the first power control parameter may specifically be a transmission parameter indication transmission configuration indication TCI, and the transmission configuration indication TCI indicates that the power control parameter may specifically be that the transmission parameter indication configuration includes a power control parameter set ID; or the SRS resource configuration in the SRS resource set indicated by the transmission parameter is associated with or includes a power control parameter set ID. If one or more uplink beams have no associated power control parameters, the terminal device cannot determine the uplink transmission power. In summary, in the case that the uplink resource indicated by the transmission configuration indicator TCI is inconsistent with the uplink resource indicated by the sounding signal resource index SRI, the terminal device cannot determine the uplink resource.

In order to solve the above technical problems, embodiments of the present application provide an uplink resource indication method, and the method provided by the embodiments of the present application is described below with reference to the accompanying drawings.

The communication method provided by the embodiment of the application can be applied to various communication systems, for example: the long term evolution (long term evolution, LTE) system, fifth generation (5th generation,5G) mobile communication system, wireless fidelity (wireless fidelity, wiFi) system, future communication system, or system where multiple communication systems are integrated, etc., embodiments of the present application are not limited. Wherein 5G may also be referred to as New Radio (NR).

The communication method provided by the embodiment of the application can be applied to various communication scenes, for example, one or more of the following communication scenes: enhanced mobile broadband (enhanced mobile broadband, eMBB), ultra-reliable low latency communications (ultra reliable low latency communication, URLLC), machine type communications (machine type communication, MTC), large-scale machine type communications (massive machine type communications, mctc), device-to-device (D2D), vehicle-to-vehicle (vehicle to everything, V2X), vehicle-to-vehicle (vehicle to vehicle, V2V), and internet of things (internet of things, ioT), among others.

The following describes a communication method provided in the embodiment of the present application, taking the communication system shown in fig. 1 as an example.

Fig. 1 is a schematic architecture diagram of a communication system according to an embodiment of the present application, as shown in fig. 1, where the communication system may include: network equipment and terminal equipment. Fig. 1 is merely an exemplary frame diagram, and the number of network devices and terminal devices, the number of cells, and the state in which the terminal devices are located included in fig. 1 are not limited. In addition to the functional nodes shown in fig. 1, other nodes may be included, such as: core network devices, gateway devices, application servers, etc., are not limited. The network devices communicate with the core network devices via wired or wireless means, such as via a Next Generation (NG) interface. Fig. 1 illustrates a single network device and a single terminal device, and the terminal device is a UE, to describe an embodiment of the present application.

Specifically, the network device may transmit data or control signaling to the UE, and the UE reports a measurement result (corresponding to the beam) of the reference signal based on configuration information of the network, so as to switch a service beam of the UE, where the scenario may include:

scene one: inter-cell transmission model (i.e. the beam of the current cell is switched to the beam of the other cell by the beam of the current cell after the UE reports).

The UE measures the beam signals of the non-serving cell and reports the beam signals to the current serving cell. The UE receives PDCCH/PDSCH from another cell but does not switch the scenario of the serving cell based on configuring the switch beam.

Scenario two-transmission model within cell (UE switches other beams of the current cell from the beam of the current cell).

The UE measures the reference signal of the non-service wave beam of the current service cell and reports the reference signal to the current service cell. The UE switches the serving beam to the reported beam based on the configuration.

The network device is mainly used for realizing at least one function of resource scheduling, radio resource management and radio resource control of the terminal device. In particular, the network device may include any of a base station, a wireless access point, a transceiver point (transmission receive point, TRP), a transmission point (transmission point, TP), and some other access node. In systems employing different radio access technologies, the names of network devices may vary, such as base transceiver stations (base transceiver station, BTS) in global system for mobile communications (global system for mobile communication, GSM) or code division multiple access (code division multiple access, CDMA) networks, NB (NodeB) in wideband code division multiple access (wideband code division multiple access, WCDMA), eNB or eNodeB (Evolutional NodeB) in LTE (Long Term Evolution ). The network device may also be a wireless controller in a CRAN (Cloud Radio Access Network, cloud wireless access network) scenario. The network device may also be a base station device in a future 5G network or a network device in a future evolved PLMN network. The network device may also be a wearable device or an in-vehicle device. In the embodiment of the present application, the means for implementing the function of the network device may be the network device; or may be a device, such as a system-on-a-chip, capable of supporting the network device to perform this function, which may be installed in or used in conjunction with the network device. In the technical solution provided in the embodiments of the present application, the device for implementing the function of the network device is a base station, which is used as an example, and the technical solution provided in the embodiments of the present application is described.

The terminal device (terminal equipment) may be a User Equipment (UE), a Mobile Station (MS), or a mobile terminal device (MT), etc. Specifically, the terminal device may be a mobile phone (mobile phone), a tablet computer, or a computer with a wireless transceiving function, and may also be a Virtual Reality (VR) terminal device, an augmented reality (augmented reality, AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in unmanned driving, a wireless terminal device in telemedicine, a wireless terminal device in smart grid, a wireless terminal device in smart city (smart city), a smart home, or a vehicle-mounted terminal device, and the like. In this embodiment of the present application, the device for implementing the function of the terminal device may be the terminal device, or may be a device capable of supporting the terminal device to implement the function, for example, a chip system, where the device may be installed in the terminal device or used in cooperation with the terminal device. The method provided in the embodiment of the present application is described below by taking UE as an example of a device for implementing a function of a terminal device.

Based on the communication system introduced in the embodiment of the application, the embodiment of the application also provides an uplink resource indication method.

Fig. 2 shows a flowchart of an uplink resource indication method provided in an embodiment of the present application. As shown in fig. 2, the method may include the steps of:

s210, the network equipment sends first indication information and second indication information to the terminal equipment, and correspondingly, the terminal equipment receives the first indication information and the second indication information from the network equipment.

The first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam.

Optionally, the transmission parameters are further used to indicate a transmission precoding matrix index (transmission precoding matrix index, TPMI) and a transmission rank indication (transmission rank), a number of layers indication (number of layers), and an antenna port indication (antenna port).

For example, as shown in fig. 3, the first indication information may be a transmission configuration indication state TCI state of the network device using the MAC-CE signaling bearer, where the transmission configuration indication state TCI state may be used for uplink transmission and/or downlink reception. Or, the network device indicates a plurality of transmission configuration indication states TCI states by using MAC-CE signaling, then the network device further indicates a target transmission configuration indication state TCI state of the plurality of transmission configuration indication states TCI states based on downlink control indication DCI signaling, where the target transmission configuration indication state TCI state is used for uplink transmission and/or downlink reception, and the first indication information is carried by the MAC-CE signaling and the downlink control indication DCI signaling.

The second indication information may be that the network device sends a downlink control indication DCI signaling to the terminal device, where the downlink control indication DCI signaling is used to schedule the terminal device to perform uplink data transmission. The downlink control indication DCI signaling includes an uplink sounding signal resource index SRI field. The terminal device can search in the pre-configuration information through the SRI field of the uplink detection signal resource index, and then be related to SRS resources.

To aid understanding, the preconfiguration information is described below:

based on the communication standard, the network device may configure one or more sounding reference signals (sounding reference signal, SRS) resources or resource sets (SRS resources set) to the terminal device as pre-configuration information, which can correspond to the corresponding SRS resources through the SRI field. In this pre-configuration information, the "following common beam transmission configuration indication state" is not configured (follow unified TCI state). Alternatively, the transmission configuration instruction state TCI state is configured (the transmission configuration instruction state TCI state may be configured at the resource set level or at the resource level).

S220, the terminal device determines the second beam as an uplink beam of the terminal device when the first beam is different from the second beam.

The second beam is a beam indicated by sounding reference signal SRS resources, and the beam quality is better.

In one embodiment, the first indication information comprises first transmission configuration indication status information indicating the first beam, the SRS resource comprises second transmission configuration indication status information comprising transmission parameters comprising the second beam; the first beam is different from the second beam, comprising:

the at least one first beam indicated by the first transmission configuration indication status information is identified differently from the at least one second beam indicated by the second transmission configuration indication status information.

The different identities of the beams refer to that the identity TCI state ID of the first transmission configuration indication state information and the identity TCI state ID of the second transmission configuration indication state information are different, and referring to the description of S210, the first indication information may indicate the transmission configuration indication state TCI state (i.e., the first transmission configuration indication state information), the SRS resource associated with the second indication information also includes the transmission configuration indication state TCI state (i.e., the second transmission configuration indication state information), and the transmission configuration indication state TCI state has the transmission configuration indication state identity TCI state ID. And determining whether the first beam and the second beam are identical according to the identity.

In the embodiment of the present invention, whether the first beam and the second beam are identical or not is determined by the transmission configuration indication status identifiers TCI state IDs corresponding to the first beam and the second beam respectively, so that the difference between the first beam and the second beam can be determined efficiently.

In one embodiment, the first beam is different from the second beam, and may further include:

the first transmission configuration indication state information is different from the reference signal of the second transmission configuration indication state information.

Wherein the first transmission configuration indication status information and the second transmission configuration indication status information both correspond to a source reference signal (source reference signal), and according to the difference of the source reference signals, it can be determined whether the first beam and the second beam are the same. For example, the reference signal may be QCL Type-D.

In the embodiment of the application, whether the first beam and the second beam are the same or not is determined through the source reference signals respectively corresponding to the first beam and the second beam, so that the difference between the first beam and the second beam can be determined efficiently.

the first transmission configuration indication state information is of a different type than the second transmission configuration indication state information.

The first transmission configuration indication state information and the second transmission configuration indication state information may have different types, and for example, the first transmission configuration indication state information is in a joint mode, the second transmission configuration indication state information is in a separation mode, which indicates that the first transmission configuration indication state information and the second transmission configuration indication state information are different in type, and it can be determined that the first beam and the second beam are different.

In the embodiment of the present invention, whether the first beam and the second beam are identical is determined by the types of the first transmission configuration indication status information and the second transmission configuration indication status information, so that the difference between the first beam and the second beam can be determined efficiently.

the uplink power control parameter associated with the at least one first beam indicated by the first transmission configuration indication status information is different from the uplink power control parameter associated with the at least one second beam indicated by the second transmission configuration indication status information.

The transmission configuration indication state TCI state includes power control parameters of a plurality of channels, including power control parameters for uplink channels, i.e., uplink power control parameters. If the uplink power control parameter associated with at least one first beam indicated by the first transmission configuration indication status information is different from the uplink power control parameter associated with at least one second beam indicated by the second transmission configuration indication status information, specifically, the different parameters may refer to any one of the multiple parameters being different, or all of the multiple parameters being different, it may be determined that the first beam is different from the second beam.

In the embodiment of the present invention, whether the first beam and the second beam are the same is determined by the uplink power control parameter indicated by the first transmission configuration indication status information and the second transmission configuration indication status information, so that the difference between the first beam and the second beam can be determined efficiently.

The above embodiments of the present application describe several rules for determining that a first beam is different from a second beam, where the rules may be used alone or in combination to determine the difference between the first beam and the second beam. For the above-described combined use of several rules for determining that the first beam and the second beam are different, it may be determined that the first beam and the second beam are different when at least one of the rules for combined use is satisfied.

Illustratively, all of the four decision rules described above are used in combination. Assuming that the identities corresponding to the first beam and the second beam are the same, the corresponding reference signals are the same, the corresponding first transmission configuration indication state information and the corresponding second transmission configuration indication state information are the same in type, but uplink power control parameters corresponding to the first beam and the second beam are different, the difference between the first beam and the second beam is still determined.

In one embodiment, the transmission parameter further indicates a first power control parameter, the method further comprising:

and the terminal equipment determines the first power control parameter as the power control parameter of an uplink channel of the terminal equipment under the condition that the first beam is different from the second beam.

As shown in fig. 3, the terminal device may retrieve the pre-configured information through the SRI field of the uplink sounding signal resource index, and then associate to the SRS resource, where the SRS resource indicates a transmission parameter when the terminal device communicates with the transceiver node TRP, and the transmission parameter may include, for example, a power control parameter of an uplink channel, that is, a first power control parameter. Alternatively, the SRS resource is associated with a transmission configuration indication state TCI-state associated with a power control parameter ID for indicating the first power control parameter.

In view of the fact that the sounding reference signal SRS resource indicated by the second indication information does not include the power control parameter, another implementation method for determining the power control parameter of the uplink channel is further provided, and is described in connection with the following embodiments.

In one embodiment, the method further comprises:

and the terminal equipment determines the power control parameter indicated by the first indication information as the power control parameter of the uplink channel.

The first indication information also indicates that the power control parameter is included, the power control parameter indicated by the first indication information is determined as the power control parameter of the uplink channel, and it is ensured that the determined power control parameter of the uplink channel of the terminal device matches with the actual communication condition of the terminal device.

In one embodiment, the method further comprises:

and the terminal equipment determines the preset power control parameters as the power control parameters of the uplink channel.

The terminal device is configured with preset power control parameters defined by the communication protocol, for example, a first set of parameters is selected from the power control parameter set id#0.

In the embodiment of the application, the preset power control parameter is determined as the power control parameter of the uplink channel, so that the determined power control parameter of the uplink channel of the terminal equipment is ensured to be matched with the actual communication condition of the terminal equipment.

In one embodiment, the method further comprises:

the terminal equipment determines the power control parameters of the uplink channel by using the specially configured power control parameters.

Wherein, the specially configured power control parameter is carried in a partial Bandwidth (BWP) configuration independently configured by the terminal device, and the specially configured power control parameter can be used for determining the power control parameter of the uplink channel. Specifically, when the sounding reference signal SRS resource indicated by the second indication information does not include the power control parameter, or when the transmission configuration of the beam is determined by the terminal that the transmission configuration indication state TCI-state of the beam does not have an associated power control parameter set, the terminal may determine the specifically configured power control parameter as a power control parameter of the uplink channel or signal.

In the embodiment of the application, the power control parameters of the uplink channel are determined by the specially configured power control parameters, so that the determined power control parameters of the uplink channel of the terminal equipment are ensured to be matched with the actual communication conditions of the terminal equipment.

In one embodiment, the first beam and the second beam each comprise one or more beams, as shown in fig. 4, the method further comprising:

s410, the terminal equipment compares the first beam with the second beam according to the comparison corresponding relation of the SRS resource indication, and a comparison result is obtained.

Referring to the description of the SRS resource in S210, the SRS resource may indicate a comparison correspondence between the first beam and the second beam, the SRS resource may indicate a correspondence between the beam and the TRP, and the first beam and the second beam may be compared according to the comparison correspondence indicated by the SRS resource, so as to obtain a comparison result.

For example, as shown in fig. 5, in the case where SRS resource set indicator is "00" or "01", if one of the first beam and the second beam is one, the comparison relationship is determined, and the first beam and the second beam are directly compared, at least one comparison result can be obtained. If SRS resource set indicator is "10" or "11", the number of the first beams and the number of the second beams are not one, and the plurality of first beams and the plurality of second beams are compared according to the comparison correspondence indicated by the SRS resource, so that a plurality of comparison results can be obtained.

S420, the terminal equipment determines the beams with the same and corresponding comparison results as uplink beams of the terminal equipment.

The comparison result may be one or more beams corresponding to the same beam, and if the comparison result is more than one beam, one beam may be selected as the uplink beam of the terminal device.

In one embodiment, as shown in fig. 5, the first beam includes a third beam tci#1 and a fourth beam tci#2, the second beam includes a fifth beam SRI1 and a sixth beam SRI2, and in case the second indication information includes the first preset information, the method may further include:

comparing whether the third beam and the fifth beam are the same or not, or comparing whether the third beam and the sixth beam are the same or not, and obtaining a first comparison result; and comparing whether the fourth beam and the sixth beam are the same or whether the fourth beam and the fifth beam are the same, so as to obtain a second comparison result.

In consideration of the communication situation of the terminal device and the communication of the plurality of TRPs, taking two TRPs as an example, reference is made to the scenarios of "10" and "11" in SRS resource set indicator in table 1:

The fifth and sixth beams first transmission configuration indication state TCI state may be a common transmission configuration indication state Unified TCI state. In the case of SRS resource set indicator being "10", the two transmitting and receiving points TRP do not exchange the beam sequence, and the comparison correspondence between the beams is fixed, then the third beam and the fifth beam are directly compared to determine whether they are identical, and the fourth beam and the sixth beam are compared to determine whether they are identical, so as to obtain a first comparison result and a second comparison result.

In the case of SRS resource set indicator being "11", the two transmission and reception points TRP exchange beam sequences, and the comparison correspondence of the SRS resource indication may change, specifically: the beam indicated by the uplink sounding reference index SRI corresponding to the TRP after the switching sequence may be compared with the beam indicated by the transmission configuration indication state TCI state. The beam indicated by the uplink sounding reference index SRI corresponding to the TRP before the switching sequence may be compared with the beam indicated by the transmission configuration indication state TCI state.

S220: in the case that the first beam is different from the second beam, determining the second beam as an uplink beam of the terminal device may include:

And determining the fifth beam and/or the sixth beam as an uplink beam when at least one of the first comparison result and the second comparison result is different.

The fifth beam and the sixth beam are indicated by the second indication information, and the first comparison result and the second comparison result have the following combination modes: all the same, all different, one the same and one different. For the same combination, the beam indicated by the first indication information or the beam indicated by the second indication information may be determined as the uplink beam of the terminal device (because the beams indicated by the first indication information and the second indication information are the same).

For each of the different combinations or for each of the same one of the different combinations (corresponding to the case where at least one of the first comparison result and the second comparison result is different): the uplink beam of the terminal device whose comparison result is the same corresponds to the beam indicated by the first indication information or the beam indicated by the second indication information (because the beam indicated by the first indication information and the beam indicated by the second indication information are the same), and the uplink beam of the terminal device whose comparison result is different corresponds to the beam indicated by the second indication information, and in summary, the uplink beam of the terminal device is determined to be the beam indicated by the second indication information (including the fifth beam and the sixth beam) whether the comparison result is the same or different.

Further, a unique beam may be selected from the fifth beam and the sixth beam to determine as an uplink beam of the terminal device, which needs to fall back to a single TRP service mode, and apply a TRP corresponding to "00" or "01" to communicate with the terminal device, where the comparison result of the beams corresponding to the determined TRP is the same, that is, the comparison result corresponding to the unique beam selected from the fifth beam and the sixth beam is the same.

Further, referring to the description of the determining process of the "power control parameter of the uplink channel of the terminal device" in the embodiment of the present application, in a scenario that the first beam and the second beam include multiple beams, the determining of the power control parameter of the uplink channel of the terminal device is consistent with the determining of the uplink beam of the terminal device, and the power control parameter indicated by the transmission parameter in the SRS resource corresponding to the determined uplink beam is determined as the power control parameter of the uplink channel of the terminal device. For example, in a beam switching scenario, power control parameters in SRS resources after the switching order are employed.

A description is made of a case where the first beam and the second beam each include a plurality of beams, the first beam including a third beam and a fourth beam, the second beam including a fifth beam and a sixth beam, the third beam corresponding to the same TRP as the fifth beam, the fourth beam corresponding to the same TRP as the sixth beam, if the first indication information indicates the power control parameter of the third beam but does not indicate the power control parameter of the fourth beam, with reference to fig. 5; the second indication information indicates that the power control parameter of the fifth beam is the first power control parameter a, and the second indication information indicates that the power control parameter of the sixth beam is the first power control parameter B, then the power control parameter of the uplink channel of the terminal device may be determined by:

and determining the power control parameter corresponding to the third beam as a first power control parameter A, and determining the power control parameter corresponding to the fourth beam as a first power control parameter B.

Or, determining the power control parameter corresponding to the third beam as the power control parameter indicated by the first indication information, and determining the power control parameter corresponding to the fourth beam as the first power control parameter B.

Further, in addition to the case where the first indication information indicates the power control parameter of the third beam and does not indicate the power control parameter of the fourth beam, there is also a case where the first indication information does not indicate the power control parameter for both the third beam and the fourth beam, and in this case, the power control parameter of the uplink channel of the terminal device may be determined by:

In an embodiment, the network device may further send third indication information to the terminal device, where the third indication information is used to indicate which of the beams corresponding to the TCI state indicated by the first indication information is the first beam and the second beam, and in this embodiment, the first beam and the second beam are both included in the beams indicated by the first indication information. The first indication information indicates a plurality of transmission configuration indication states TCI states that can be used for uplink transmission and downlink reception, and in particular, each TCI state can be used for determining an uplink beam and a downlink beam, or for determining an uplink beam, or for determining a downlink beam. And the third indication information indicates DCI signaling bearing through downlink control, wherein the third indication information comprises two TCI indication fields (or one TCI indication field), each TCI indication field can be 3 bits, each TCI indication field indicates one (or two) of a plurality of transmission configuration indication states TCI states, and the two TCI indication fields indicate two TCI states (or one TCI indication field indicates two TCI states) which respectively correspond to the first wave beam and the second wave beam. The third indication information may be as shown in table 2:

TABLE 2

Or when the DCI signaling schedules two PDSCH resources, for example, there are two multiple-input multiple-output (MIMO) parameters indicating PDSCH transmission time-frequency resource positions and/or transmission usage, in which case the third indication information may be further as shown in table 3:

TABLE 3 Table 3

In this embodiment, if there is indication information of the exchange beam order in the third indication information and the first beam and the second beam are not associated with the power control parameter, referring to the description of the specifically configured power control parameter in S220, the terminal device determines the power control parameter of the uplink channel with respect to the specifically configured power control parameter. Wherein the specially configured power control parameter is carried in the partial bandwidth BWP configuration independently configured by the terminal device, and the specially configured power control parameter can be determined as the power control parameter of the uplink channel.

If there is indication information of the exchange beam sequence in the third indication information and only one of the first beam and the second beam is associated with the power control parameter, the terminal device may also determine a specially configured power control parameter (carried in BWP) as the power control parameter of the uplink channel.

If the third indication information includes indication information of the exchange beam sequence and the first beam and the second beam are both associated with power control parameters, determining that the power control parameters associated with the first beam and the second beam are candidate power control parameters according to the indication information of the exchange beam sequence, determining the uplink beam from the first beam and the second beam, and determining the power control parameters associated with the uplink beam as the power control parameters of the uplink channel.

The above description has been presented mainly from the point of interaction between the nodes. It will be appreciated that the various nodes, such as terminal devices and network devices, for implementing the functions described above, comprise corresponding hardware structures and/or software modules that perform the various functions. Those of skill in the art will readily appreciate that the algorithm steps of the examples described in connection with the embodiments disclosed herein, the methods of the embodiments of the present application may be implemented in hardware, software, or a combination of hardware and computer software. Whether a function is implemented as hardware or computer software driven hardware depends upon the particular application and design constraints imposed on the solution. 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 application.

The embodiment of the application may divide the functional modules of the terminal device and the network device according to the above method example, for example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one processing module. The integrated modules may be implemented in hardware or in software functional modules. It should be noted that, in the embodiment of the present application, the division of the modules is schematic, which is merely a logic function division, and other division manners may be implemented in actual implementation.

In specific implementation, each network element shown in the application includes: the terminal device and the network device may employ the constituent structures shown in fig. 6 or include the components shown in fig. 6. Fig. 6 is a schematic structural diagram of a communication apparatus 600 provided in the embodiment of the present application, where the communication apparatus 600 has the function of the terminal device described in the embodiment of the present application, the communication apparatus 600 may be a terminal device or a chip or a system on a chip in the terminal device. When the communication apparatus 600 has the function of the network device described in the embodiments of the present application, the communication apparatus 600 may be a network device or a chip or a system on a chip in the network device.

As shown in fig. 6, the communication device 600 may include a processor 601, a communication line 602, and a transceiver 603. The processor 601, the memory 604, and the transceiver 603 may be connected through a communication line 602. In one example, processor 601 may include one or more CPUs, such as CPU0 and CPU1 in fig. 6.

As an alternative implementation, communication device 600 includes multiple processors, e.g., processor 607 in addition to processor 601 in fig. 6.

The processor 601 may be a central processing unit (central processing unit, CPU), a general purpose processor network processor (network processor, NP), a digital signal processor (digital signal processing, DSP), a microprocessor, a microcontroller, a programmable logic device (programmable logic device, PLD), or any combination thereof. The processor 601 may also be other means having processing functions, such as a circuit, device, or software module.

Communication lines 602 for conveying information between components included in communication device 600.

A transceiver 603 for communicating with other devices or other communication networks. The other communication network may be an ethernet, a radio access network (radio access network, RAN), a wireless local area network (wireless local area networks, WLAN), etc. The transceiver 603 may be an interface circuit, pin, radio frequency module, transceiver, or any device capable of enabling communications.

Further, the communication device 600 may also include a memory 604. Memory 604 for storing instructions. Wherein the instructions may be computer programs.

The memory 604 may be a read-only memory (ROM) or other type of static storage device capable of storing static information and/or instructions, a random access memory (random access memory, RAM) or other type of dynamic storage device capable of storing information and/or instructions, an electrically erasable programmable read-only memory (electrically erasable programmable read _only memory, EEPROM), a compact disc read-only memory (compact disc read _only memory, cd_rom) or other optical disc storage, magnetic disc storage medium or other magnetic storage device, and optical disc storage includes compact discs, laser discs, optical discs, digital versatile discs, or blu-ray discs, etc.

It should be noted that the memory 604 may exist separately from the processor 601 or may be integrated with the processor 601. Memory 604 may be used to store instructions or program code or some data, etc. The memory 604 may be located within the communication device 600 or may be located outside the communication device 600, without limitation. The method provided in the embodiments of the present application may be implemented when the processor 601 executes instructions stored in the memory 604.

As an alternative implementation, the communication apparatus 600 further comprises an output device 605 and an input device 606. Illustratively, the input device 606 is a keyboard, mouse, microphone, or joystick device, and the output device 605 is a display screen, speaker (spaker), or the like.

It should be noted that the communication apparatus 600 may be a desktop computer, a portable computer, a network server, a mobile phone, a tablet computer, a wireless terminal device, an embedded device, a chip system, or a device having a similar structure in fig. 6. Further, the constituent structure shown in fig. 6 does not constitute a limitation of the communication apparatus, and the communication apparatus may include more or less components than those shown in fig. 6, or may combine some components, or may be arranged in different components, in addition to those shown in fig. 6.

In the embodiment of the application, the chip system may be formed by a chip, and may also include a chip and other discrete devices.

Fig. 7 shows a block diagram of a communication apparatus 700 applied to a terminal device. The modules in the device shown in fig. 7 have the functions of implementing the corresponding steps in fig. 2, and achieve the corresponding technical effects. The corresponding beneficial effects of the execution steps of each module can refer to the description of the corresponding steps of fig. 2, and are not repeated. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. The communication means may be a terminal device or a chip or a system on chip in a terminal device. Such as: the communication device includes:

The receiving module 710 is configured to receive the first indication information and the second indication information from the network device. The first indication information is used for indicating a first wave beam, the second indication information is used for indicating sounding reference signal SRS resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node TRP, and the transmission parameters comprise a second wave beam.

And a processing module 720, configured to determine the second beam as an uplink beam of the terminal device when the first beam is different from the second beam.

In one embodiment, the transmission parameter further indicates a first power control parameter, and the processing module 720 is further configured to:

In one embodiment, the processing module 720 is further configured to:

and determining the power control parameter indicated by the first indication information as the power control parameter of the uplink channel.

Or determining the preset power control parameter as the power control parameter of the uplink channel.

Alternatively, the power control parameters of the uplink channel are determined by the specially configured power control parameters. Wherein the specifically configured power control parameters are carried in an independently configured fractional bandwidth BWP configuration.

In one embodiment, the first beam and the second beam each comprise one or more beams, and the processing module 720 is further configured to:

and comparing the first beam with the second beam according to the comparison corresponding relation of the SRS resource indication to obtain a comparison result.

And determining the beams with the same and corresponding comparison results as uplink beams of the terminal equipment.

In one embodiment, the first beam includes a third beam and a fourth beam, the second beam includes a fifth beam and a sixth beam, and the processing module 720 is further configured to, in a case where the second indication information includes the first preset information:

comparing whether the third beam and the fifth beam are the same or whether the third beam and the sixth beam are the same, and obtaining a first comparison result. And comparing whether the fourth beam and the sixth beam are the same or whether the fourth beam and the fifth beam are the same, so as to obtain a second comparison result.

In the case that the first beam is different from the second beam, determining the second beam as an uplink beam of the terminal device includes:

In one embodiment, the first indication information comprises first transmission configuration indication status information indicating the first beam, the SRS resource comprises second transmission configuration indication status information comprising transmission parameters comprising the second beam.

The first beam is different from the second beam, comprising:

And/or the first transmission configuration indication state information is different from the reference signal of the second transmission configuration indication state information.

And/or the first transmission configuration indication state information is different from the second transmission configuration indication state information in type.

And/or, the uplink power control parameter associated with the at least one first beam indicated by the first transmission configuration indication status information is different from the uplink power control parameter associated with the at least one second beam indicated by the second transmission configuration indication status information.

Fig. 8 shows a structural diagram of a communication apparatus 800 applied to a network device. The modules in the device shown in fig. 8 have the functions of implementing the corresponding steps in fig. 2, and achieve the corresponding technical effects. The corresponding beneficial effects of the execution steps of each module can refer to the description of the corresponding steps of fig. 2, and are not repeated. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software comprises one or more modules corresponding to the functions. The communication means may be a network device or a chip or a system on a chip in a network device. Such as: the communication device includes:

and the sending module 810 is configured to send the first indication information and the second indication information to the terminal device.

The first indication information is used for indicating a first wave beam, the second indication information is used for indicating sounding reference signal SRS resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node TRP, and the transmission parameters comprise a second wave beam. The first beam and the second beam are used for determining an uplink beam of the terminal device.

Fig. 9 is a block diagram of a communication system provided in an embodiment of the present application, where the communication system determines a communication system corresponding to a scenario for uplink resources, as shown in fig. 9, the communication system may include: a terminal device 90 and a network device 91. The terminal device 90 may have the function of the communication apparatus 700, and the network device 91 may have the function of the communication apparatus 800. Terminal device 10 includes a processor 101, memory 102, and transceiver 103, transceiver 103 including a transmitter 1031, a receiver 1032, and an antenna 1033. The network device 20 comprises a processor 201, a memory 202 and a transceiver 203, the transceiver 203 comprising a transmitter 2031, a receiver 2032 and an antenna 2033. A receiver 1032 may be used for receiving transmission control information via antenna 1033 and a transmitter 1031 may be used for transmitting transmission feedback information via antenna 1033 to network device 20. The transmitter 2031 may be configured to transmit transmission control information to the terminal apparatus 10 through the antenna 2033, and the receiver 2032 may be configured to receive transmission feedback information transmitted by the terminal apparatus 10 through the antenna 2033. Specific:

A network device 91 for transmitting the first indication information and the second indication information to the terminal device 90. The first indication information is used for indicating a first wave beam, the second indication information is used for indicating sounding reference signal SRS resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node TRP, and the transmission parameters comprise a second wave beam.

The terminal device 90 is configured to receive the first instruction information and the second instruction information from the network device 91. And determining the second beam as an uplink beam of the terminal device in case the first beam is different from the second beam.

Embodiments of the present application also provide a computer-readable storage medium. All or part of the flow in the above method embodiments may be implemented by a computer program to instruct related hardware, where the program may be stored in the above computer readable storage medium, and when the program is executed, the program may include the flow in the above method embodiments. The computer readable storage medium may be the terminal device apparatus of any of the foregoing embodiments, such as: the internal storage unit comprises a data transmitting end and/or a data receiving end, such as a hard disk or a memory of the terminal equipment device. The computer readable storage medium may be an external storage device of the terminal device, for example, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (flash card), or the like, which are provided in the terminal device. Further, the computer-readable storage medium may include both the internal storage unit and the external storage device of the terminal device apparatus. The computer-readable storage medium is used for storing the computer program and other programs and data required by the terminal device. The above-described computer-readable storage medium may also be used to temporarily store data that has been output or is to be output.

The embodiment of the application also provides a computer instruction. All or part of the above-described method embodiments may be implemented by computer instructions to instruct related hardware (e.g., a computer, a processor, a network device, a terminal device, etc.). The program may be stored in the computer-readable storage medium described above.

The embodiment of the application also provides a chip system. The chip system may be composed of a chip, or may include a chip and other discrete devices, without limitation. The chip system includes a processor and a transceiver, and all or part of the flow in the above method embodiment may be implemented by the chip system, for example, the chip system may be used to implement a function performed by a network device in the above method embodiment, or implement a function performed by a terminal device in the above method embodiment.

In a possible design, the above chip system further includes a memory, where the memory is configured to store program instructions and/or data, and when the chip system is running, the processor executes the program instructions stored in the memory, so that the chip system performs a function performed by the network device in the above method embodiment or performs a function performed by the terminal device in the above method embodiment.

In the embodiments of the present application, the processor may be a general purpose processor, a digital signal processor, an application specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the methods, steps, and logic blocks disclosed in the embodiments of the present application. The general purpose processor may be a microprocessor or any conventional processor or the like. The steps of a method disclosed in connection with the embodiments of the present application may be embodied directly in a hardware processor for execution, or in a combination of hardware and software modules in the processor for execution.

In the embodiment of the present application, the memory may be a nonvolatile memory, such as a hard disk (HDD) or a Solid State Drive (SSD), or may be a volatile memory (volatile memory), for example, a random-access memory (RAM). The memory is any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to such. The memory in the embodiments of the present application may also be a circuit or any other device capable of implementing a memory function, for storing instructions and/or data.

It should be noted that the terms "first" and "second" and the like in the description, claims and drawings of the present application are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.

It should be understood that, in the embodiment of the present application, "at least one (item)" means one or more, "a plurality" means two or more, "at least two (items)" means two or three and three or more, "and/or" for describing an association relationship of an association object, and that three relationships may exist, for example, "a and/or B" may represent: only a, only B and both a and B are present, wherein a, B may be singular or plural. The character "/" generally indicates that the context-dependent object is an "or" relationship. "at least one of" or the like means any combination of these items, including any combination of single item(s) or plural items(s). For example, at least one (one) of a, b or c may represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", wherein a, b, c may be single or plural. It should be understood that in the embodiments of the present application, "B corresponding to a" means that B is associated with a. For example, B may be determined from a. It should also be appreciated that determining B from a does not mean determining B from a alone, but may also determine B from a and/or other information. In addition, the "connection" in the embodiment of the present application refers to various connection manners such as direct connection or indirect connection, so as to implement communication between devices, which is not limited in any way in the embodiment of the present application.

"transmission" as used herein refers to bi-directional transmission, including transmitting and/or receiving, unless otherwise specified. Specifically, "transmission" in the embodiments of the present application includes transmission of data, reception of data, or both transmission of data and reception of data. Alternatively, the data transmission herein includes uplink and/or downlink data transmission. The data may comprise channels and/or signals, uplink data transmission, i.e. uplink channel and/or uplink signal transmission, and downlink data transmission, i.e. downlink channel and/or downlink signal transmission. The "network" and the "system" appearing in the embodiments of the present application express the same concept, and the communication system is a communication network.

From the foregoing description of the embodiments, it will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of functional modules is illustrated, and in practical application, the above-described functional allocation may be implemented by different functional modules according to needs, i.e. the internal structure of the apparatus is divided into different functional modules to implement all or part of the functions described above.

In the several embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical functional division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another apparatus, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be an indirect coupling or communication connection via some interfaces, devices or units, which may be in electrical, mechanical or other form.

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

In addition, each functional unit in each embodiment of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units. The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a readable storage medium. Based on such understanding, the technical solution of the embodiments of the present application may be essentially or partly contributing to the prior art or all or part of the technical solution may be embodied in the form of a software product stored in a storage medium, comprising several instructions for causing an apparatus, such as: may be a single-chip microcomputer, chip or the like, or a processor (processor) performs all or part of the steps of a method as described in various embodiments of the application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk, etc.

The foregoing is merely a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any changes or substitutions within the technical scope of the present disclosure should be covered in the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An uplink resource indication method, which is characterized in that the method is applied to a terminal device and comprises the following steps:

receiving first indication information and second indication information from network equipment; the first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam;

and determining the second beam as an uplink beam of the terminal equipment in the case that the first beam is different from the second beam.

2. The uplink resource indication method of claim 1 wherein the transmission parameter further indicates a first power control parameter, the method further comprising:

and determining the first power control parameter as the power control parameter of the uplink channel of the terminal equipment under the condition that the first beam is different from the second beam.

3. The uplink resource indication method of claim 1, wherein the method further comprises:

determining the power control parameter indicated by the first indication information as the power control parameter of the uplink channel;

or determining a preset power control parameter as the power control parameter of the uplink channel;

or, determining the power control parameters of the uplink channel by using the specially configured power control parameters; wherein the specifically configured power control parameters are carried in an independently configured fractional bandwidth BWP configuration.

4. The uplink resource indication method of any of claims 1-3, wherein the first beam and the second beam each comprise one or more beams, the method further comprising:

comparing the first beam with the second beam according to the comparison corresponding relation indicated by the SRS resource to obtain a comparison result;

and determining the beams with the same corresponding comparison result as uplink beams of the terminal equipment.

5. The uplink resource indication method according to any one of claims 1-3, wherein the first beam includes a third beam and a fourth beam, the second beam includes a fifth beam and a sixth beam, and in a case where the second indication information includes first preset information, the method further includes:

Comparing whether the third beam and the fifth beam are identical or not, or comparing whether the third beam and the sixth beam are identical or not, so as to obtain a first comparison result; comparing whether the fourth beam and the sixth beam are identical or not, or comparing whether the fourth beam and the fifth beam are identical or not, so as to obtain a second comparison result;

the determining the second beam as the uplink beam of the terminal device when the first beam is different from the second beam includes:

and determining the fifth beam and/or the sixth beam as the uplink beam when at least one of the first comparison result and the second comparison result is different.

6. The uplink resource indication method according to any one of claims 1-5, wherein the first indication information includes first transmission configuration indication status information indicating the first beam, the SRS resource includes second transmission configuration indication status information including the transmission parameter, and the transmission parameter includes a second beam;

the first beam is different from the second beam, comprising:

The at least one first beam indicated by the first transmission configuration indication state information is different from the at least one second beam indicated by the second transmission configuration indication state information in identification;

and/or the first transmission configuration indication state information is different from the reference signal of the second transmission configuration indication state information;

and/or the first transmission configuration indication state information is of a different type than the second transmission configuration indication state information;

and/or, the uplink power control parameter associated with at least one first beam indicated by the first transmission configuration indication state information is different from the uplink power control parameter associated with at least one second beam indicated by the second transmission configuration indication state information.

7. An uplink resource indication method, which is applied to a network device, comprises the following steps:

sending first indication information and second indication information to terminal equipment; the first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam;

The first beam and the second beam are used for determining an uplink beam of the terminal equipment.

8. A communication apparatus, the apparatus being applied to a terminal device, comprising:

the receiving module is used for receiving the first indication information and the second indication information from the network equipment; the first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam;

and the processing module is used for determining the second beam as the uplink beam of the terminal equipment when the first beam is different from the second beam.

9. The communications apparatus of claim 8, wherein the transmission parameter is further indicative of a first power control parameter, the processing module is further for:

10. The communications apparatus of claim 8, wherein the processing module is further configured to:

11. The communication apparatus of any of claims 8-10, wherein the first beam and the second beam each comprise one or more beams, the processing module further to:

12. The communication device according to any of claims 8-10, wherein the first beam comprises a third beam and a fourth beam, the second beam comprises a fifth beam and a sixth beam, and the processing module is further configured to, in case the second indication information comprises first preset information:

13. The communications apparatus of any one of claims 8-12, wherein the first indication information comprises first transmission configuration indication status information indicating the first beam, the SRS resource comprises second transmission configuration indication status information including the transmission parameter, the transmission parameter including a second beam;

the first beam is different from the second beam, comprising:

14. A communication apparatus, the apparatus being applied to a network device, comprising:

the sending module is used for sending the first indication information and the second indication information to the terminal equipment; the first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam;

15. A communication device comprising a processor and a transceiver for supporting the communication device to perform the method of any of claims 1-7.

16. A computer readable storage medium storing computer instructions which, when executed, perform the method of any one of claims 1-7.

17. A communication system, the communication system comprising: network equipment and terminal equipment;

the network equipment is used for sending the first indication information and the second indication information to the terminal equipment; the first indication information is used for indicating a first wave beam, the second indication information is used for indicating Sounding Reference Signal (SRS) resources, the SRS resources indicate transmission parameters when the terminal equipment communicates with a receiving-transmitting node (TRP), and the transmission parameters comprise a second wave beam;

the terminal device is configured to receive the first indication information and the second indication information from the network device; and determining the second beam as an uplink beam of the terminal equipment in the case that the first beam is different from the second beam.