CN113498089B

CN113498089B - Information configuration and determination method, network equipment and terminal equipment

Info

Publication number: CN113498089B
Application number: CN202010275976.5A
Authority: CN
Inventors: 郑凯立; 孙鹏; 刘昊
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-09
Publication date: 2023-05-16
Anticipated expiration: 2040-04-09
Also published as: CN113498089A

Abstract

The invention discloses an information configuration and determination method, network equipment and terminal equipment, wherein the information configuration method comprises the following steps: configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n; the target QCL reference information corresponds to the demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time allowance n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching. The embodiment of the invention can ensure the data demodulation capability of the terminal equipment and improve the communication efficiency of the system.

Description

Information configuration and determination method, network equipment and terminal equipment

Technical Field

The present invention relates to the field of communications, and in particular, to an information configuration and determination method, a network device, and a terminal device.

Background

Currently, in a high-speed railway network deployment, in order to solve the problem that a User Equipment (UE, which may also be referred to as a terminal device) needs to switch network devices frequently under a high-speed moving condition, a single frequency network (Single Frequency Network, SFN) transmission mode can be adopted in both a long term evolution (Long Term Evolution, LTE) system and a New Radio (NR) system to perform network deployment, that is, synchronous transmission is performed in a plurality of cells at the same time and with the same frequency, so as to save frequency resources and improve spectrum utilization.

However, when the network deployment is performed by adopting the SFN transmission mode, the UE is affected by multiple doppler frequency offsets in opposite directions, so that the network device is required to perform frequency offset precompensation to eliminate the influence of the doppler frequency offset. In addition, the NR system introduces a more flexible tracking reference signal (Tracking Reference Signal, TRS) and a series of Quasi co-location (QCL) relationships associated therewith.

Accordingly, it is desirable to provide a QCL configuration scheme that enables demodulation reference signals (Demodulation Reference Signal, DMRS) to reference the correct QCL source when channel estimation and data demodulation are performed.

In addition, in the frequency offset precompensation scheme, the terminal equipment needs to perform spatial relationship information switching, transmission configuration indication switching, crystal oscillator frequency switching and the like, and the time for performing the related switching depends on the capability of the terminal equipment. In order to cooperate with QCL configuration schemes, a time protection mechanism is also needed to accommodate the relevant handover.

Disclosure of Invention

The technical problems solved by the embodiment of the invention are at least one of the following: how to make the DMRS refer to the correct QCL source for channel estimation and data demodulation; how to make the terminal device have enough time margin when making the relevant handover.

In a first aspect, an embodiment of the present invention provides an information configuration method, applied to a network device, where the method includes:

configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n; the target QCL reference information corresponds to a demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time margin n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information spatialreactioninfo switching, transmission configuration indication state TCI state switching and transmission receiving point TRP switching.

In a second aspect, an embodiment of the present invention provides a network device, including:

the configuration module is used for configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n; the target QCL reference information corresponds to a demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time margin n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information spatialreactioninfo switching, transmission configuration indication state TCI state switching and transmission receiving point TRP switching.

In a third aspect, an embodiment of the present invention provides a network device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to the first aspect.

In a fourth aspect, embodiments of the present invention provide a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the method according to the first aspect.

In a fifth aspect, an embodiment of the present invention provides an information determining method, applied to a terminal device, where the method includes:

receiving target configuration information configured by network equipment, wherein the target configuration information comprises at least one of target standard co-located QCL reference information and time allowance n, and the target QCL reference information corresponds to demodulation reference signal (DMRS) resources; performing channel estimation and data demodulation according to the target QCL reference information; and performing target switching according to the time margin n, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

In a sixth aspect, an embodiment of the present invention provides a terminal device, including:

a receiving module, configured to receive target configuration information configured by a network device, where the target configuration information includes at least one of target standard co-located QCL reference information and a time margin n, where the target QCL reference information corresponds to a demodulation reference signal DMRS resource; the first processing module is used for carrying out channel estimation and data demodulation according to the target QCL reference information; and the second processing module is used for carrying out target switching according to the time allowance n, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

In a seventh aspect, an embodiment of the present invention provides a terminal device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method according to the fifth aspect.

In an eighth aspect, an embodiment of the present invention provides a computer readable storage medium, where a computer program is stored on the computer readable storage medium, the computer program implementing the steps of the method according to the fifth aspect when being executed by a processor.

In the embodiment of the present invention, the target configuration information may be configured, where the target configuration information includes at least one of target standard co-located QCL reference information and a time margin n. When the standard co-located QCL reference information is configured for the demodulation reference signal DMRS resource, the terminal device can refer to correct QCL information when performing channel estimation and data demodulation based on the DMRS resource. When the additional time margin n is configured, the terminal equipment can perform target switching based on the time margin n, that is, sufficient time margin is provided for the terminal equipment to perform target switching, so that the data demodulation capability of the terminal equipment is ensured, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relationship information (spacial correlation info) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching. In this way, the system communication efficiency can be improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:

Fig. 1 is a schematic diagram of a network deployment based on an SFN transmission mode in an embodiment of the present invention;

FIG. 2 is a flow chart of an information configuration method according to an embodiment of the present invention;

FIG. 3 is a schematic diagram illustrating a process for pre-compensating for frequency offset in accordance with an embodiment of the present invention;

FIG. 4 is a schematic diagram of another process for pre-compensating for frequency offset in an embodiment of the present invention;

fig. 5 is a schematic diagram illustrating a process of frequency offset precompensation according to an embodiment of the present invention;

FIG. 6 is a flow chart of a method for determining information according to an embodiment of the invention;

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

fig. 8 is a schematic structural diagram of a terminal device in an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a second network device according to an embodiment of the present invention;

fig. 10 is a schematic structural diagram of a second terminal device in an embodiment of the present invention.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The technical scheme of the invention can be applied to various communication systems, such as: global system for mobile communications (Global System of Mobile communication, GSM), code division multiple access (Code Division Multiple Access, CDMA) systems, wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA), general packet radio service (General Packet Radio Service, GPRS), long Term evolution/enhanced Long Term evolution (Long Term EvolutionAdvanced, LTE-a), NR, etc.

The user equipment UE, which may also be referred to as a Terminal equipment (Mobile Terminal), a Mobile user equipment, etc., may communicate with one or more core networks via a radio access network (Radio Access Network, RAN), and the user equipment may be Terminal equipment, such as Mobile phones (or "cellular" phones) and computers with Terminal equipment, for example, portable, pocket, hand-held, computer-built-in or vehicle-mounted Mobile devices, which exchange speech and/or data with the radio access network.

The network device, which may be referred to as a base station, may be a base station (Base Transceiver Station, BTS) in GSM or CDMA, a base station (NodeB) in WCDMA, an evolved base station (evolutional Node B, eNB or e-NodeB) in LTE, or a 5G base station (gNB).

In the technical scheme of the invention, when the network deployment is carried out by adopting the SFN transmission mode, a plurality of remote radio heads (Remote Radio Head, RRH) are connected to the same baseband processing unit (Building Base band Unit, BBU), so that the UE does not need to frequently switch network equipment in the process of high-speed movement. As shown in fig. 1, multiple RRHs, RRH1 and RRH2, can send the same physical downlink shared channel (Physical downlink shared channel, PDSCH) data to the UE, which can move between RRH1 and RRH 2.

The following describes in detail the technical solutions provided by the embodiments of the present invention with reference to the accompanying drawings.

Referring to fig. 2, an embodiment of the present invention provides an information configuration method, which is executed by a network device, and includes the following flow steps:

step 101: and configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n.

The target QCL reference information corresponds to the demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time margin n is used for target handover of the terminal equipment, wherein the target handover comprises at least one of crystal oscillator frequency handover, spatial relation information (spacialrelation info) handover, transmission configuration indication state (Transmission Configuration Indicatorstate, TCI state) handover and transmission receiving point (Transmission Reception Point, TRP) handover.

Optionally, the target configuration information may be used by the terminal device in a first process, where the first process is a process in which the terminal device moves from one of the first remote radio head RRH and the second RRH to the other in a network deployed by adopting an SFN transmission manner. Such as a process of moving from one of RRH1 and RRH2 in fig. 1 to the other.

Optionally, in the information configuration method according to the embodiment of the present invention, when the target configuration information includes target standard co-located QCL reference information, the target QCL reference information includes a target QCL reference source and target QCL parameters corresponding to the target QCL reference source. That is, the target QCL reference information can enable the DMRS resource to refer to the correct QCL source and the corresponding target QCL parameters when performing channel estimation and data demodulation.

Further optionally, the target QCL reference information satisfies at least one of the following conditions:

(1) The target QCL reference source is different from a first QCL reference source that includes a first tracking reference signal TRS resource and a second TRS resource.

Alternatively, the first TRS resource may be sent via the first RRH, and the second TRS resource may be sent via the second RRH.

(2) The target QCL parameter is different from a first QCL parameter, where the first QCL parameter is all QCL parameters in a QCL type corresponding to the first TRS resource and all QCL parameters in a QCL type corresponding to the second TRS resource.

It can be appreciated that when the target QCL reference source of the DMRS is configured as a QCL source different from the reference first TRS resource and the second TRS resource in the related art, and/or the target QCL parameter configuration corresponding to the target QCL reference source is different from the QCL parameter configuration corresponding to the QCL source referred to by the DMRS resource in the related art, a situation that the doppler frequency offset value is mismatched can be avoided.

Optionally, in the information configuration method according to the embodiment of the present invention, the specific content included in the target QCL reference information including the target QCL reference source and the corresponding target QCL parameter may be configured in a plurality of different schemes, including, but not limited to, the following cases described in the following specific embodiments:

detailed description of the preferred embodiments

In a first embodiment, the target QCL reference information is indicated to the terminal device based on a code point in a first downlink control information (Downlink Control Information, DCI) signaling, where the code point includes a first TCI state and a second TCI state.

The QCL reference source in the first TCI state is a first TRS resource, and the QCL type in the first TCI state is QCL type A; the QCL reference source in the second TCI state is a second TRS resource, and the QCL type in the second TCI state is a QCL type A or a first QCL type; wherein the QCL parameter in the first QCL type is delay spread.

It may be appreciated that, in this specific embodiment, the target QCL reference information of the DMRS port may be indicated by the DCI as two TCI states contained in a code point in the TCI domain, i.e. the target QCL reference source of the DMRS port is configured as both the first TRS resource and the second TRS resource. The target QCL parameters corresponding to the target QCL reference source may jointly reference the QCL parameters in the QCL type a of the first TRS resource and the QCL parameters in the QCL type a of the second TRS resource. Alternatively, the QCL parameters corresponding to the target QCL type may refer to the QCL parameters in the QCL type a of the first TRS resource in combination with the newly defined QCL parameters in the first QCL type.

Wherein the QCL type A represents a QCL type, and the QCL parameters in the QCL type A are Doppler frequency offset, doppler spread, average time delay and time delay spread.

Further optionally, in this specific embodiment, in a case where the QCL type in the first TCI state and the QCL type in the second TCI state are both QCL type a, the target QCL reference source includes: a primary QCL reference source and a non-primary QCL reference source.

Wherein the main QCL reference source is one of a first TRS resource and a second TRS resource, and the non-main QCL reference source is the other one of the first TRS resource and the second TRS resource; the target QCL parameters include all QCL parameters in QCL type a corresponding to the main QCL reference source and partial QCL parameters in QCL type a corresponding to the non-main QCL reference source, where the partial QCL parameters are delay spread.

It can be appreciated that the target QCL reference source distinguishes between a first TRS resource and a second TRS resource, and that the target QCL parameter corresponding to the target QCL reference source is different from the first QCL parameter, at this time, the UE performs channel estimation and data demodulation by jointly referencing the delay spread of both the first TRS resource and the second TRS resource.

Further optionally, in one example, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device explicitly indicates to the terminal device through the first signaling; wherein the first signaling includes radio resource control (Radio Resource Control, RRC) signaling, medium access control (Medium Access ControlControl Element, MAC CE) signaling, or downlink control information, DCI, signaling.

Further optionally, in another example, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device implicitly indicates to the terminal device through a first sequence, where the first sequence is a front-to-back sequence of the first TCI state and the second TCI state in the code point, and the main QCL reference source is a TRS resource in a TCI state arranged in front in the code point.

For example, in the process of frequency offset precompensation shown in fig. 3, the crystal frequency of the network device is fc, and the crystal frequency of the UE is fc+fo. Specifically, the following contents can be included:

step 201: frequency offset estimation based on synchronization signal block (Synchronization Signal and PBCH block, SSB) resources.

The network device configures two resource sets SSB1 and SSB2 to be sent from RRH1 and RRH2, respectively, to the UE. And the UE respectively estimates Doppler frequency offsets as delta f1-fo and delta f2-fo according to the received SSB1 and SSB 2. Further, the UE may decide to adjust the crystal oscillator frequency according to the frequency offset estimation result corresponding to SSB1 or SSB2 according to the signaling instruction sent in advance by the network device. If the network equipment indicates to adjust the crystal oscillator frequency according to the frequency offset estimation result delta f1 corresponding to the SSB1, the crystal oscillator frequency is adjusted to fc+delta f1; and if the network equipment indicates to adjust the crystal oscillator frequency according to the frequency offset estimation result delta f2 corresponding to the SSB2, the crystal oscillator frequency is adjusted to fc+delta f2. In this embodiment, a case is specifically described in which the network device instructs to adjust the crystal oscillator frequency according to the frequency offset estimation result Δf1 corresponding to SSB 1.

Step 203: frequency offset estimation based on TRS resources.

The network device configures two TRS resource sets TRS1 and TRS2 to be sent from RRH1 and RRH2, respectively, to the UE. And the UE respectively estimates the Doppler frequency offset to be 0 and delta f 2-delta f1 according to the received TRS1 and TRS 2. Further, the UE may decide to adjust the crystal oscillator frequency according to the frequency offset result corresponding to TRS1 or TRS2 according to the signaling instruction sent in advance by the network device. Then, if the network device indicates to adjust the crystal oscillator frequency according to the frequency offset estimation result 0 corresponding to the TRS1, the crystal oscillator frequency is adjusted to fc+Δf1; and if the network equipment indicates to adjust the crystal oscillator frequency according to the frequency offset estimation result delta f 2-delta f1 corresponding to the TRS2, the crystal oscillator frequency is adjusted to fc+delta f2. In this embodiment, a case is specifically described in which the network device instructs to adjust the crystal oscillator frequency according to the frequency offset estimation result 0 corresponding to TRS 1.

Step 205: and estimating the frequency offset of the uplink network equipment.

The UE transmits an uplink sounding reference signal (Sounding Reference Signal, SRS) at a crystal oscillator frequency fc+Δf1, and the network device estimates doppler frequency offsets Δf1 and Δf2 on RRH1 and RRH2 according to the SRS.

Step 207: after the network device performs frequency offset pre-compensation, the same PDSCH is sent from RRH1 and RRH 2.

When the UE receives the PDSCH, the DMRS carries out channel estimation according to TCI state indicated in advance by RRC, MAC CE and DCI domain, and the specific indication is as follows:

the RRC configures M TCI states from which the MACCE activates N TCI states (N.ltoreq.8), and the DCI indicates one of the N TCI states. For example, QCL reference information of two TCI states represented by code points in the DCI domain at this time is: the QCL reference source of the DMRS in the first TCI state is TRS1, and the QCL type is QCL type A; the QCL reference source of DMRS in the second TCI state is TRS2, and the QCL type is QCL type a.

In addition, the main QCL reference source is signaled as TRS1 in the first TCI state. Or implicitly indicating that TCI state1 with the front sequence in the code point is a main QCL reference source according to the sequence of TCI states in the code point { TCI state1, TCI state2 }. Since the UE can learn from higher layer signaling that it is in the high-speed rail SFN network, it defaults to delay spread of its reference non-primary QCL reference source TRS 2. I.e., DMRS references the average delay, delay spread, doppler frequency offset, and doppler spread of TRS1, but references only the delay spread of TRS2 (part of the QCL parameters in QCL type a). When the UE performs DMRS channel estimation, the UE needs to combine the delay information of TRS1 and TRS 2.

Further optionally, in this specific embodiment, in a case where the QCL type in the first TCI state is QCL type a and the QCL type in the second TCI state is the first QCL type, the target QCL reference source includes a first TRS resource and a second TRS resource; the target QCL parameters include: all QCL parameters in the QCL type corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.

It can be appreciated that the target QCL parameters corresponding to the target QCL reference source are different from the first QCL parameters, at which time the UE will jointly reference the delay spread of both the first TRS resource and the second TRS resource for channel estimation and data demodulation.

For example, the frequency offset pre-compensation process shown in fig. 4 includes the

steps

301, 303 and 305 substantially the same as the

steps

201, 203 and 205 shown in fig. 3, and will not be described herein. The differences are as follows:

step 307: after the network device performs frequency offset pre-compensation, the same PDSCH is sent from RRH1 and RRH 2.

The RRC configures M TCI states from which the MAC-CE activates N TCI states (N.ltoreq.8), and the DCI indicates one of the N TCI states. For example, QCL reference information corresponding to two TCI states indicated by code points in the DCI domain at this time is: the QCL reference source of the DMRS in the first TCI state is TRS1, and the QCL type is QCL TypeA { Doppler frequency offset, doppler spread, average time delay and time delay spread }; the QCL reference source of the DMRS in the second TCI state is TRS2, and the QCL type is QCL type { delay spread } (i.e., the first QCL type). At this time, the DMRS refers to the average delay, delay spread, doppler frequency offset, and doppler spread of the TRS1, and refers to the delay spread of the TRS 2. When the UE performs DMRS channel estimation, the UE needs to combine the delay information of TRS1 and TRS 2.

Second embodiment

In a second embodiment, the target QCL reference resource is a third TRS resource, the third TRS resource is sent after frequency offset precompensation, the QCL reference source of the third TRS resource is a first TRS resource or a second TRS resource, the QCL type referred to by the third TRS resource is a QCL type c or a second QCL type, and the first TRS resource, the second TRS resource and the third TRS resource are all periodic TRS resources.

Wherein the second QCL type is any QCL type other than QCL type a, QCL type b, QCL type c, and QCL type d; the target QCL parameters are all QCL parameters in the QCL TypeA.

Wherein, the above-mentioned QCL type B, QCL type C and QCL type D all represent QCL types, the QCL parameters in the QCL type B are Doppler frequency offset and Doppler spread, the QCL parameters in the QCL type C are Doppler frequency offset and average time delay, and the QCL parameters in the QCL type D are space receiving parameters.

It may be appreciated that the target QCL reference source is different from the first QCL reference source, and specifically, the periodic TRS resource, that is, the third TRS resource, that is transmitted between performing frequency offset precompensation and transmitting the same PDSCH may be used as the QCL reference source; wherein the third TRS resource references another periodic TRS resource (i.e., the first TRS resource or the second TRS resource) with QCL type c.

Alternatively, the third TRS resource may be transmitted after performing frequency offset pre-compensation via the first RRH and the second RRH, and before transmitting the same physical downlink shared channel PDSCH via the first RRH and the second RRH.

For example, the frequency offset pre-compensation process shown in fig. 5 includes the

steps

401, 403 and 405 substantially the same as the

steps

201, 203 and 205 shown in fig. 3, and are not described herein. The differences are as follows:

step 407: after the network device performs frequency offset pre-compensation, the same TRS3 is sent from RRH1 and RRH 2. When receiving TRS3, the UE carries out timing and frequency offset adjustment by taking TRS1 as a QCL reference and the QCL type as QCL type C according to the TCI state indicated in advance by RRC, MAC CE and DCI domains, and estimates new timing, time delay expansion, doppler frequency offset and Doppler expansion.

Step 409: after the network device performs frequency offset pre-compensation, the same PDSCH is sent from RRH1 and RRH 2.

When the UE receives the PDSCH, the DMRS carries out channel estimation according to the RRC, the MAC CE and the TCI state indicated in advance by the DCI domain, wherein the TCI state specifically indicated by the DCI is as follows: the QCL reference source of DMRS is TRS3 and the QCL type is QCL type a.

That is, a novel QCL relationship is configured in which one periodic TRS resource is subject to another periodic TRS resource as a target QCL reference source, i.e., the QCL reference of TRS3 is configured as TRS1 or TRS2, the QCL Type can be configured as QCL Type C or other newly defined QCL Type, the QCL reference source of the DMRS is configured as TRS3, and the QCL Type is QCL Type A

Detailed description of the preferred embodiments

In this third embodiment, the target QCL reference source of the DMRS is configured as a specific DMRS resource, and the target QCL parameters are all QCL parameters in QCL type a. The indication information of the specific DMRS resource is configured through a second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling.

It is to be appreciated that the target QCL reference source is different from the first QCL reference source, and may specifically be a specific DMRS resource that is pre-specified.

Further optionally, in one example, in a case where the DMRS resource transmitted in one slot (slot) or two consecutive slots is a specific DMRS resource, the target QCL reference source is a specific DMRS resource.

It may be appreciated that the target QCL reference source is different from the first QCL reference source, specifically, the QCL reference source configured for the DMRS resource is itself, that is, is a specific DMRS resource specified in advance.

Alternatively, in the case that the DMRS resource transmitted in one time slot or two consecutive time slots via the first RRH and the second RRH is a specific DMRS resource, the QCL reference source configured for the DMRS resource may be a specific DMRS resource indicated in advance. Further optionally, in another example, in a case where the DMRS resource transmitted in one time slot or two consecutive time slots is not a specific DMRS resource, the target QCL reference source is the specific DMRS resource transmitted last time before the DMRS resource is transmitted.

Alternatively, in the case that the DMRS resource transmitted in the time slot or the two consecutive time slots via the first RRH and the second RRH is not a specific DMRS resource, the QCL reference source configured for the DMRS resource may be a specific DMRS resource indicated in advance.

Optionally, in the information configuration method according to the embodiment of the present invention, the target handover may be indicated to the terminal device in different manners, including but not limited to the following specific embodiments:

detailed description of the preferred embodiments

In a first embodiment of the present invention, the time margin n is used for the terminal device to perform target handover in a handover period after receiving the target signaling, where the handover period is a period corresponding to a time T to a time (t+n), the time T is used for the terminal device to send a positive acknowledgement ACK message corresponding to the target signaling, the target handover is completed after the time (t+n) is agreed by the protocol, and no signal transmission is performed in the time margin n; the target signaling comprises media access control unit (MAC CE) signaling or physical layer control signaling.

The time margin n, the time T, and the time (t+n) are in milliseconds.

It will be appreciated that the above-described target handover is indicated explicitly by the network device to the terminal device by target signaling. Meanwhile, the additional n millisecond time allowance is provided, so that the UE is ensured to have enough time allowance to finish corresponding target switching, and the data demodulation capability of the terminal equipment is ensured.

Optionally, in the first example, in the case where the target signaling is MAC CE signaling or physical layer control signaling and the target signaling is first spatialreactioninfo handover signaling, the target handover is completed after time (t+3+n1) by the protocol convention, where n=3+n1. Optionally, the target handover is the above-mentioned spatlrelationinfo handover.

Wherein the time (t+3+n1) is in milliseconds.

It is understood that in this example, the above-described time margin n may be a time margin of 3 ms provided in the related art, and further, a time margin of n1 ms is additionally provided.

Further optionally, in this example, the above-mentioned first spatlrelationlnfo switching signaling is used to indicate that the set of reference signals associated with spatlrelationlnfo is switched from the first set to the second set. That is, the first set and the second set are two sets of reference signals associated with the spatialreactioninfo.

The first set and the second set are two different reference signal sets, and the first set and the second set are preconfigured by network equipment or are agreed by a protocol.

Optionally, in the second example, in the case where the target signaling is MAC CE signaling and the target signaling is the first TCI state switching signaling, the target switching is completed after time (t+3+n1) by the protocol convention, where n=3+n1. Optionally, the target switch is the TCI state switch described above.

Further optionally, in this example, the first TCI state switching signaling is configured to instruct a reference signal set associated with the TCI state to switch from the third set to the fourth set. That is, the third set and the fourth set are two sets of reference signals associated with the TCI state.

Wherein the third set and the fourth set are different sets of two reference signals, the third set and the fourth set being preconfigured by the network device or agreed by the protocol.

Further optionally, in this example, the first TCI state switch signaling is configured to indicate a particular control resource set (Control Resource Set, CORESET) TCI state switch, where the particular CORESET TCI state switch includes CORESET0TCI state switch. Note that the specific CORESET TCI state handover may also include some other specified CORESET TCI state handover other than the CORESET0TCI state handover.

Further alternatively, in this example, the first TCI state switch signaling described above may also be used to indicate PDSCH active TCI state switching. PDSCH active TCI state is the TCI state used for PDSCH reception.

Optionally, in a third example, in a case where the target signaling is DCI signaling (i.e. physical layer control signaling) and the target signaling is at least one of second TCI state handover signaling and second spatialreactioninfo handover signaling, the target handover is completed after time (t+n2) by the protocol convention, where n=n2. Optionally, the target handover may include at least one of TCI state handover and spatlrelationinfo handover.

Further optionally, in this example, the second TCI state switching signaling is used to switch CORESET TCI state or PDSCH TCI state.

Optionally, in a fourth example, the signaling of the label is specifically agreed signaling; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following: TRP switching signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling and third SpatialReconnaist switching signaling. That is, the target handover may also be indicated by specifically agreed signaling.

Second embodiment

In the second embodiment, the target handover is indicated to the terminal device by the network device in an implicit manner; wherein, the signal transmission is not performed within the time margin n. In this way, signaling overhead may be saved. Meanwhile, the additional n millisecond time allowance is provided, so that the UE is ensured to have enough time allowance to finish corresponding target switching, and the data demodulation capability of the terminal equipment is ensured.

Optionally, in the information configuration method according to the embodiment of the present invention, the determining manner of the above-mentioned time margin n includes one of the following:

(1) The time margin n is agreed by the protocol.

(2) The time margin n is configured by the network device. That is, the time margin n is directly configured by the network device.

(3) And reporting the time allowance n by the terminal equipment. That is, the network device may configure a time margin reported by the terminal device based on its own capability as the time margin n, so as to meet the time requirement of the terminal device for performing the target handover.

(4) The network equipment configures the time allowance n based on the time allowance n3 reported by the terminal equipment. Optionally, after receiving the time margin n3 reported by the terminal device based on its own capability, the network device may directly configure the time margin n3 as a final time margin n, or may reconfigure a new time margin n4, and configure the time margin n4 as a final time margin n, where the time margin n4 may be greater than the time margin n to meet the time requirement of the terminal device for performing target handover. That is, the time margin n may be equal to the time margin n3 or may not be equal to the time margin n3.

(5) And configuring a time allowance n by the network equipment based on the time allowance threshold value reported by the terminal equipment. That is, when receiving the time margin threshold value reported by the terminal device based on the capability of the terminal device, the network device selects an appropriate time margin based on the time margin threshold value as a final time margin n so as to meet the time requirement of the terminal device for performing the target handover. The time margin n may be equal to or different from the time margin threshold value.

In summary, according to the information configuration method provided by the embodiment of the invention, a new QCL reference relation and type and related signaling indication can be provided for a network side frequency offset precompensation scheme of a high-speed railway scene, so that the problem of QCL reference information mismatch after frequency offset precompensation is solved, and the data demodulation performance of terminal equipment is ensured. And when the network side instructs the terminal equipment to switch the spatl relation info and the TCI state, an n millisecond time allowance is additionally introduced, namely, enough time allowance is additionally introduced for crystal oscillator adjustment of the terminal equipment, so that the terminal equipment is ensured to complete crystal oscillator frequency adjustment before transmitting and receiving signals, and the data demodulation performance of the terminal equipment is ensured.

Referring to fig. 6, an embodiment of the present invention provides an information determining method, which is performed by a terminal device, and includes the following steps:

step 501: and receiving target configuration information configured by the network equipment, wherein the target configuration information comprises at least one of target standard co-located QCL reference information and time allowance n, and the target QCL reference information corresponds to demodulation reference signal (DMRS) resources.

Step 503: and carrying out channel estimation and data demodulation according to the target QCL reference information.

Step 505: and performing target switching according to the time allowance n, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

In the embodiment of the invention, at least one of the target quasi co-located QCL reference information and the time margin n can be obtained according to the target configuration information configured by the network equipment. When the target standard co-located QCL reference information corresponding to the DMRS resource of the demodulation reference signal is obtained, correct QCL information can be referred to when channel estimation and data demodulation are performed based on the target QCL reference information and the DMRS resource. When the additional time allowance n configured by the network device is acquired, performing target switching based on a sufficient amount of time allowance additionally configured by the network device, so as to ensure the data demodulation capability of the terminal device, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relationship information spatialnfo switching, transmission configuration indication state TCI state switching and transmission receiving point TRP switching. In this way, the system communication efficiency can be improved.

Optionally, the target configuration information may be used in a first procedure, where the first procedure is a procedure of moving from one to the other of the first remote radio head RRH and the second RRH when the terminal device is located in a network deployed in an SFN transmission manner. Such as a process of moving from one of RRH1 and RRH2 in fig. 1 to the other.

Optionally, in the information determining method according to the embodiment of the present invention, when the target configuration information includes target standard co-located QCL reference information, the target QCL reference information includes a target QCL reference source and target QCL parameters corresponding to the target QCL reference source. That is, the target QCL reference information can enable the DMRS resource to refer to the correct QCL source and the corresponding target QCL parameters when performing channel estimation and data demodulation.

Alternatively, the first TRS resource may be sent by the network device via the first RRH, and the second TRS resource may be sent by the network device via the second RRH.

It can be appreciated that when the target QCL reference source of the DMRS is different from the QCL source in the related art, which refers to the first TRS resource and the second TRS resource, and/or the target QCL parameter corresponding to the target QCL reference source is different from the QCL parameter corresponding to the QCL source referred to by the DMRS resource in the related art, the situation that the doppler frequency offset value is mismatched can be avoided.

Optionally, in the information determining method according to the embodiment of the present invention, the specific content included in the target QCL reference information including the target QCL reference source and the corresponding target QCL parameter may be a plurality of different schemes, including but not limited to the cases described in the following specific embodiments:

detailed description of the preferred embodiments

In a first embodiment, the target QCL reference information is indicated by the network device based on a code point in the DCI signaling of the first downlink control information, where the code point includes a first TCI state and a second tcist state.

Further optionally, in one example, the first TRS resource or the second TRS resource is configured as a primary QCL reference source, and is explicitly indicated by the network device through first signaling; the first signaling includes radio resource control RRC signaling, medium access control unit MAC CE signaling, or downlink control information DCI signaling.

Further optionally, in another example, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device implicitly indicates the first sequence through a first sequence, where the first sequence is a front-to-back sequence of the first TCI state and the second TCI state in the code point, and the main QCL reference source is a TRS resource in a TCI state arranged in front in the code point.

Second embodiment

In a second embodiment, the target QCL reference resource is a third TRS resource, the third TRS resource is sent by the network device after frequency offset precompensation, and the QCL reference source of the third TRS resource is a first TRS resource or a second TRS resource, the QCL type referred to by the third TRS resource is a QCL type c or a second QCL type, and the first TRS resource, the second TRS resource and the third TRS resource are all periodic TRS resources.

Alternatively, the third TRS resource may be sent by the network device after performing frequency offset pre-compensation via the first RRH and the second RRH, and before sending the same physical downlink shared channel PDSCH via the first RRH and the second RRH.

Detailed description of the preferred embodiments

In this particular embodiment three, the target QCL reference source of the DMRS is configured as a specific DMRS resource, and the target QCL parameters are all QCL parameters in QCL TypeA. The indication information of the specific DMRS resource is configured by the network device through a second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling.

Further optionally, in one example, in a case where the DMRS resource received in one slot (slot) or two consecutive slots is a specific DMRS resource, the target QCL reference source is a specific DMRS resource.

Alternatively, the network device may be configured such that, in a case where the DMRS resource transmitted in one time slot or two consecutive time slots via the first RRH and the second RRH is a specific DMRS resource, the QCL reference source configured for the DMRS resource is a specific DMRS resource indicated in advance.

Further optionally, in another example, in a case where the DMRS resource received in one time slot or two consecutive time slots is not a specific DMRS resource, the target QCL reference source is the specific DMRS resource that was last transmitted before the DMRS resource was transmitted.

Optionally, the network device may further be configured to configure the QCL reference source for the DMRS resource to be a specific DMRS resource indicated in advance, where the DMRS resource transmitted in the time slot or two consecutive time slots via the first RRH and the second RRH is not a specific DMRS resource.

Optionally, in the information determining method according to the embodiment of the present invention, the target handover may be indicated by the network device in different manners, including but not limited to the following specific embodiments:

detailed description of the preferred embodiments

In the first embodiment, the above step 507 may be specifically performed as follows:

sending a positive Acknowledgement (ACK) message corresponding to the target signaling to the network equipment at a time T; in a switching period corresponding to the time T to the time (T+n), performing target switching according to target signaling, wherein the target switching is completed after the time (T+n) is appointed by a protocol, and signal transmission is not performed in a time allowance n; the target signaling comprises media access control unit (MAC CE) signaling or physical layer control signaling.

The time margin n, the time T, and the time (t+n) are in milliseconds.

It will be appreciated that the above-described target handover is explicitly indicated by the network device via target signaling. Meanwhile, the additional n millisecond time allowance is provided, so that the UE is ensured to have enough time allowance to finish corresponding target switching, and the data demodulation capability of the terminal equipment is ensured.

Optionally, in the first example, in the case where the target signaling is MAC CE signaling or physical layer control signaling, and the target signaling is first spatialreactioninfo handover signaling, the target handover is completed after time (t+3+n1) by a protocol convention, where n=3+n1. Optionally, the target handover is a spatlrelationinfo handover.

Wherein the time (t+3+n1) is in milliseconds.

Optionally, in the second example, in the case where the target signaling is MAC CE signaling and the target signaling is the first TCI state switching signaling, the target switching is completed after time (t+3+n1) by the protocol convention, where n=3+n1. Alternatively, the target switch may be a TCI state switch.

Further optionally, in this example, the first TCI state switch signaling is used to indicate a specific CORESET TCI state switch, where the specific CORESET TCI state switch includes a CORESET0TCI state switch. Note that the specific CORESET TCI state handover may also include some other specified CORESET TCI state handover other than the CORESET0TCI state handover.

Further optionally, in this example, the first TCI state switch signaling is used to indicate PDSCH active TCI state switching. PDSCH active TCI state is the TCI state used for PDSCH reception.

Optionally, in a third example, in a case where the target signaling is DCI signaling (i.e. physical layer control signaling) and the target signaling is at least one of second TCI state handover signaling and second spatialreactioninfo handover signaling, the target handover is completed after time (t+n2) by a protocol convention, where n=n2. Optionally, the target handover may include at least one of TCI state handover and spatlrelationinfo handover.

Optionally, in a fourth example, the target signaling is specifically agreed signaling; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following: TRP switching signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling and third SpatialReconnaist switching signaling. That is, the target handover may also be indicated by specifically agreed signaling.

Second embodiment

In the second embodiment, the target handover is indicated by the network device in an implicit manner; wherein, no signal transmission is performed within the time margin n. In this way, signaling overhead may be saved. Meanwhile, the additional n millisecond time allowance is provided, so that the UE is ensured to have enough time allowance to finish corresponding target switching, and the data demodulation capability of the terminal equipment is ensured.

(1) The time margin n is agreed by the protocol.

In summary, by the information determining method of the embodiment of the invention, a new QCL reference relation and type and related signaling indication can be provided for a network side frequency offset precompensation scheme of a high-speed railway scene, so that the problem of QCL reference information mismatch after frequency offset precompensation is solved, and the data demodulation performance of terminal equipment is ensured. And when the network side instructs the terminal equipment to switch the spatl relation info and the TCI state, an n millisecond time allowance is additionally introduced, namely, enough time allowance is additionally introduced for crystal oscillator adjustment of the terminal equipment, so that the terminal equipment is ensured to complete crystal oscillator frequency adjustment before transmitting and receiving signals, and the data demodulation performance of the terminal equipment is ensured.

Referring to fig. 7, an embodiment of the present invention provides a network device 600, where the network device 600 includes:

a configuration module 601, configured to configure target configuration information, where the target configuration information includes at least one of target standard co-located QCL reference information and a time margin n; the target QCL reference information corresponds to the demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time allowance n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

Optionally, in the network device 600 of the embodiment of the present invention, the target QCL reference information includes a target QCL reference source and target QCL parameters corresponding to the target QCL reference source, where the target QCL reference information meets at least one of the following conditions:

the target QCL reference source is different from a first QCL reference source, and the first QCL reference source includes a first tracking reference signal TRS resource and a second TRS resource; the target QCL parameter is different from a first QCL parameter, where the first QCL parameter is all QCL parameters in a QCL type corresponding to the first TRS resource and all QCL parameters in a QCL type corresponding to the second TRS resource.

Optionally, in the network device 600 of the embodiment of the present invention, the target QCL reference information is indicated to the terminal device based on a code point in the first downlink control information DCI signaling, where the code point includes a first TCI state and a second TCI state; the QCL reference source in the first TCI state is a first TRS resource, and the QCL type in the first TCI state is QCL type A; the QCL reference source in the second TCI state is a second TRS resource, and the QCL type in the second TCI state is a QCL type A or a first QCL type; wherein the QCL parameter in the first QCL type is delay spread.

Optionally, in the network device 600 of the embodiment of the present invention, in the case where the QCL type in the first TCI state and the QCL type in the second TCI state are both QCL type a, the target QCL reference sources include: a primary QCL reference source and a non-primary QCL reference source; wherein the primary QCL reference source is one of a first TRS resource and a second TRS resource, and the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource; the target QCL parameters include all QCL parameters in the QCL type A corresponding to the main QCL reference source and part of the QCL parameters in the QCL type A corresponding to the non-main QCL reference source, wherein the part of the QCL parameters are delay spread.

Optionally, in the network device 600 of the embodiment of the present invention, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device explicitly indicates to the terminal device through a first signaling; the first signaling includes radio resource control RRC signaling, medium access control unit MAC CE signaling, or downlink control information DCI signaling.

Optionally, in the network device 600 of the embodiment of the present invention, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device implicitly indicates to the terminal device through a first sequence, where the first sequence is a front-to-back sequence of the first TCI state and the second TCI state in the code point, and the main QCL reference source is a TRS resource in the TCI state arranged in the front in the code point.

Optionally, in the network device 600 of the embodiment of the present invention, in a case where the QCL type in the first TCI state is QCL type a and the QCL type in the second TCI state is the first QCL type, the target QCL reference source includes a first TRS resource and a second TRS resource; the target QCL parameters include: all QCL parameters in the QCL type corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.

Optionally, in the network device 600 of the embodiment of the present invention, the target QCL reference resource is a third TRS resource, the third TRS resource is sent after performing frequency offset pre-compensation, a QCL reference source of the third TRS resource is a first TRS resource or a second TRS resource, a QCL type referred to by the third TRS resource is a QCL TypeC or a second QCL type, and the first TRS resource, the second TRS resource and the third TRS resource are all periodic TRS resources; wherein the second QCL type is any QCL type other than QCL type a, QCL type b, QCL type c, and QCL type d; the target QCL parameters are all QCL parameters in QCL type a.

Optionally, in the network device 600 of the embodiment of the present invention, in a case where the DMRS resource transmitted in one time slot or two consecutive time slots is a specific DMRS resource, the target QCL reference source is the specific DMRS resource.

Optionally, in the network device 600 of the embodiment of the present invention, in a case where the DMRS resource transmitted in one time slot or two consecutive time slots is not a specific DMRS resource, the target QCL reference source is a specific DMRS resource that was transmitted last time before the DMRS resource was transmitted.

Optionally, in the network device 600 of the embodiment of the present invention, the indication information of the specific DMRS resource is configured through a second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling; the target QCL parameters are all QCL parameters in QCL type a.

Optionally, in the network device 600 of the embodiment of the present invention, the above-mentioned time margin n is used for the terminal device to perform target switching in a switching period after receiving the target signaling, where the switching period is a period corresponding to a time T to a time (t+n), the time T is used for the terminal device to send a positive acknowledgement ACK message corresponding to the target signaling, the target switching is completed after the time (t+n) is agreed by the protocol, and no signal transmission is performed in the time margin n; the target signaling comprises media access control unit (MAC CE) signaling or physical layer control signaling.

Optionally, in the network device 600 of the embodiment of the present invention, in the case where the target signaling is MAC CE signaling or physical layer control signaling, and the target signaling is first spatialreactive info switching signaling, the target switching is completed after time (t+3+n1) by a protocol, where n=3+n1.

Optionally, in the network device 600 of the embodiment of the present invention, the first spatlreference signal switching signaling is used to indicate that a reference signal set associated with spatlreference info is switched from the first set to the second set; the first set and the second set are two different reference signal sets, and the first set and the second set are preconfigured by network equipment or are agreed by a protocol.

Optionally, in the network device 600 of the embodiment of the present invention, in the case where the target signaling is MAC CE signaling and the target signaling is the first TCI state switching signaling, the target switching is completed after time (t+3+n1) by a protocol, where n=3+n1.

Optionally, in the network device 600 of the embodiment of the present invention, the first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to be switched from the third set to the fourth set; wherein the third set and the fourth set are different sets of two reference signals, the third set and the fourth set being preconfigured by the network device or agreed by the protocol.

Optionally, in the network device 600 according to the embodiment of the present invention, the first TCI state switching signaling is used to indicate a specific control resource set CORESET TCI state switch, and the specific CORESET TCI state switch includes a CORESET0 TCI state switch.

Optionally, in the network device 600 of the embodiment of the present invention, the first TCI state switch signaling is used to indicate PDSCH active TCI state switching.

Optionally, in the network device 600 of the embodiment of the present invention, in a case where the target signaling is DCI signaling and the target signaling is at least one of the second TCI state handover signaling and the second spatialreactive info handover signaling, the target handover is completed after time (t+n2) by a protocol convention, where n=n2.

Optionally, in the network device 600 of the embodiment of the present invention, the second TCI state switching signaling is used to switch CORESET TCI state or PDSCH TCI state.

Optionally, in the network device 600 of the embodiment of the present invention, the target signaling is a specially agreed signaling; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following: TRP switching signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling and third SpatialReconnaist switching signaling.

Optionally, in the network device 600 of the embodiment of the present invention, the target handover is indicated to the terminal device by the network device in an implicit manner; wherein, no signal transmission is performed within the time margin n.

Optionally, in the network device 600 of the embodiment of the present invention, the determining manner of the above-mentioned time margin n includes one of the following:

the time allowance n is agreed by a protocol; configuring a time margin n by a network device; reporting a time allowance n by the terminal equipment; the network equipment configures time allowance n based on the time allowance n3 reported by the terminal equipment; and configuring a time allowance n by the network equipment based on the time allowance threshold value reported by the terminal equipment.

It can be understood that, in the network device 600 provided by the embodiment of the present invention, the foregoing information configuration method performed by the network device 600 can be implemented, and the relevant descriptions about the information configuration method are applicable to the network device 600, which is not repeated herein.

Referring to fig. 8, an embodiment of the present invention provides a terminal device 700, the terminal device 700 including: a receiving module 701, a first processing module 703 and a second processing module 705.

The receiving module 701 is configured to receive target configuration information configured by the network device, where the target configuration information includes at least one of target standard co-located QCL reference information and a time margin n; a first processing module 703, configured to perform channel estimation and data demodulation according to the target QCL reference information; the second processing module 705 is configured to perform target switching according to the time margin n, where the target switching includes at least one of crystal oscillator frequency switching, spatial relationship information spacialrelationship info switching, transmission configuration indication state TCI state switching, and transmission receiving point TRP switching.

Optionally, in the terminal device 700 according to the embodiment of the present invention, the target QCL reference information includes a target QCL reference source and target QCL parameters corresponding to the target QCL reference source, where the target QCL reference information meets at least one of the following conditions:

the target QCL reference source is different from a first QCL reference source comprising a first tracking reference signal TRS resource and a second TRS resource; the target QCL parameter is different from the first QCL parameter, which is all QCL parameters in the QCL type corresponding to the first TRS resource and all QCL parameters in the QCL type corresponding to the second TRS resource.

Optionally, in the terminal device 700 of the embodiment of the present invention, the target QCL reference information is indicated by the network device based on a code point in the first downlink control information DCI signaling, where the code point includes a first TCI state and a second TCI state; the QCL reference source in the first TCI state is a first TRS resource, and the QCL type in the first TCI state is QCL type A; the QCL reference source in the second TCI state is a second TRS resource, and the QCL type in the second TCI state is a QCL type A or a first QCL type; wherein the QCL parameter in the first QCL type is delay spread.

Optionally, in the terminal device 700 of the embodiment of the present invention, in the case where the QCL type in the first TCI state and the QCL type in the second TCI state are both QCL type a, the target QCL reference sources include: a primary QCL reference source and a non-primary QCL reference source; wherein the primary QCL reference source is one of a first TRS resource and a second TRS resource, and the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource; the target QCL parameters include all QCL parameters in the QCL type A corresponding to the main QCL reference source and part of the QCL parameters in the QCL type A corresponding to the non-main QCL reference source, wherein the part of the QCL parameters are delay spread.

Optionally, in the terminal device 700 of the embodiment of the present invention, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device performs explicit indication through a first signaling; the first signaling includes radio resource control RRC signaling, medium access control unit MAC CE signaling, or downlink control information DCI signaling.

Optionally, in the terminal device 700 of the embodiment of the present invention, the first TRS resource or the second TRS resource is configured as a main QCL reference source, and the network device implicitly indicates through a first order, where the first order is a front-to-back order of the first TCI state and the second TCI state in the code point, and the main QCL reference source is a TRS resource in a TCI state arranged in front in the code point.

Optionally, in the terminal device 700 in this embodiment of the present invention, when the QCL type in the first TCI state is QCL type a and the QCL type in the second TCI state is the first QCL type, the target QCL reference source includes a first TRS resource and a second TRS resource; the target QCL parameters include: all QCL parameters in the QCL type corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.

Optionally, in the terminal device 700 in this embodiment of the present invention, the target QCL reference resource is a third TRS resource, the third TRS resource is sent by the network device after frequency offset precompensation is performed, and the QCL reference source of the third TRS resource is a first TRS resource or a second TRS resource, a QCL type referred to by the third TRS resource is a QCL type c or a second QCL type, and the first TRS resource, the second TRS resource and the third TRS resource are all periodic TRS resources; wherein the second QCL type is any QCL type other than QCL type a, QCL type b, QCL type c, and QCL type d; the target QCL parameters are all QCL parameters in QCL type a.

Optionally, in the terminal device 700 of the embodiment of the present invention, in a case where the DMRS resource received in one time slot or two consecutive time slots is a specific DMRS resource, the target QCL reference source is the specific DMRS resource.

Optionally, in the terminal device 700 of the embodiment of the present invention, in a case where the DMRS resource received in one time slot or two consecutive time slots is not a specific DMRS resource, the target QCL reference source is a specific DMRS resource that was last transmitted before the DMRS resource was transmitted.

Optionally, in the terminal device 700 of the embodiment of the present invention, the indication information of the specific DMRS resource is configured by the network device through a second signaling, where the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling; the target QCL parameters are all QCL parameters in QCL type a.

Optionally, in the terminal device 700 of the embodiment of the present invention, the above second processing module may be specifically configured to:

Optionally, in the terminal device 700 according to the embodiment of the present invention, in the case where the target signaling is MAC CE signaling or physical layer control signaling, and the target signaling is first spatialreactioninfo handover signaling, the target handover is completed after time (t+3+n1) by a protocol, where n=3+n1.

Optionally, in the terminal device 700 of the embodiment of the present invention, the first spatlrelationlnfo switching signaling is used to instruct a reference signal set associated with spatlrelationlnfo to be switched from the first set to the second set; the first set and the second set are two different reference signal sets, and the first set and the second set are preconfigured by network equipment or are agreed by a protocol.

Optionally, in the terminal device 700 according to the embodiment of the present invention, in the case where the target signaling is MAC CE signaling and the target signaling is the first TCI state switching signaling, the target switching is completed after time (t+3+n1) by the protocol, where n=3+n1.

Optionally, in the terminal device 700 of the embodiment of the present invention, the first TCI state switching signaling is used to instruct the reference signal set associated with the TCI state to be switched from the third set to the fourth set; wherein the third set and the fourth set are different sets of two reference signals, the third set and the fourth set being preconfigured by the network device or agreed by the protocol.

Optionally, in the terminal device 700 according to the embodiment of the present invention, the first TCI state switching signaling is used to indicate a specific control resource set CORESET TCI state switch, and the specific CORESET TCI state switch includes a CORESET0TCI state switch.

Optionally, in the terminal device 700 according to the embodiment of the present invention, the first TCI state switching signaling is used to indicate PDSCH active TCI state switching.

Optionally, in the terminal device 700 of the embodiment of the present invention, in a case where the target signaling is DCI signaling and the target signaling is at least one of the second TCI state handover signaling and the second spatialreactive info handover signaling, the target handover is completed after time (t+n2) by a protocol convention, where n=n2.

Optionally, in the terminal device 700 according to the embodiment of the present invention, the second TCI state switching signaling is used to switch CORESET TCI state or PDSCH TCI state.

Optionally, in the terminal device 700 of the embodiment of the present invention, the target signaling is a signaling specifically agreed; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following: TRP switching signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling and third SpatialReconnaist switching signaling.

Optionally, in the terminal device 700 of the embodiment of the present invention, the target handover is indicated by the network device in an implicit manner; wherein, no signal transmission is performed within the time margin n.

Optionally, in the terminal device 700 according to the embodiment of the present invention, the determination manner of the above-mentioned time margin n includes one of the following:

It can be appreciated that the terminal device 700 provided in the embodiment of the present invention can implement the foregoing information determining method performed by the terminal device 700, and the relevant descriptions about the information determining method are applicable to the terminal device 700 and are not repeated herein.

Referring to fig. 9, fig. 9 is a block diagram of a network device to which the embodiment of the present invention is applied, so that details of the foregoing information configuration method can be implemented, and the same effects are achieved. As shown in fig. 9, the network device 800 includes: a processor 801, a transceiver 802, a memory 803, a user interface 804, and a bus interface 805, wherein:

In an embodiment of the present invention, the network device 800 further includes: a computer program stored on the memory 803 and executable on the processor 801, which when executed by the processor 801 performs the steps of:

configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n; the target QCL reference information corresponds to the demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment; the time allowance n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

In fig. 9, a bus architecture may comprise any number of interconnecting buses and bridges, with various circuits of one or more processors, represented in particular by processor 801, and memory, represented in memory 803. The bus architecture may also link together various other circuits such as peripheral devices, voltage regulators, power management circuits, etc., which are well known in the art and, therefore, will not be described further herein. Bus interface 805 provides an interface. The transceiver 802 may be a number of elements, i.e., including a transmitter and a receiver, providing a means for communicating with various other apparatus over a transmission medium. The user interface 804 may also be an interface capable of interfacing with an inscribed desired device for a different user device, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

Fig. 10 is a block diagram of a terminal device according to another embodiment of the present invention. The terminal device 900 shown in fig. 10 includes: at least one processor 901, memory 902, at least one network interface 904, and a user interface 903. The various components in terminal device 900 are coupled together by a bus system 905. It is appreciated that the bus system 905 is employed to enable connected communications between these components. The bus system 905 includes a power bus, a control bus, and a status signal bus in addition to the data bus. But for clarity of illustration the various buses are labeled as bus system 905 in fig. 10.

The user interface 903 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, a trackball, a touch pad, or a touch screen, etc.).

It will be appreciated that the memory 902 in embodiments of the invention can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable EPROM (EEPROM), or a flash Memory. The volatile memory may be random access memory (Random Access Memory, RAM) which acts as an external cache. By way of example, and not limitation, many forms of RAM are available, such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double Data Rate SDRAM (Double Data Rate SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and direct memory bus RAM (DRRAM). The memory 902 of the systems and methods described in embodiments of the present invention is intended to comprise, without being limited to, these and any other suitable types of memory.

In some implementations, the memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 9021 and application programs 9022.

The operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, for implementing various basic services and processing hardware-based tasks. The application 9022 includes various application programs such as a Media Player (Media Player), a Browser (Browser), and the like for realizing various application services. A program for implementing the method of the embodiment of the present invention may be included in the application 9022.

In the embodiment of the present invention, the terminal device 900 further includes: a computer program stored on the memory 902 and executable on the processor 901, which when executed by the processor 901 performs the steps of:

receiving target configuration information configured by network equipment, wherein the target configuration information comprises at least one of target standard co-located QCL reference information and time allowance n, and the target QCL reference information corresponds to demodulation reference signal (DMRS) resources; performing channel estimation and data demodulation according to the target QCL reference information; and performing target switching according to the time allowance n, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching.

The method disclosed in the above embodiment of the present invention may be applied to the processor 901 or implemented by the processor 901. Processor 901 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 901 or instructions in the form of software. The processor 901 may be a general purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), an off-the-shelf programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The disclosed methods, steps, and logic blocks in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a computer readable storage medium well known in the art such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, and the like. The computer readable storage medium is located in a memory 902, and a processor 901 reads information in the memory 902 and performs the steps of the above method in combination with its hardware. Specifically, the computer-readable storage medium has stored thereon a computer program which, when executed by the processor 901, implements the steps of the information determination method embodiments described above.

It is to be understood that the embodiments of the invention described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For a hardware implementation, the processing units may be implemented within one or more application specific integrated circuits (Application Specific Integrated Circuits, ASIC), digital signal processors (Digital Signal Processing, DSP), digital signal processing devices (DSP devices, DSPD), programmable logic devices (Programmable Logic Device, PLD), field programmable gate arrays (Field-Programmable Gate Array, FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units designed to perform the functions described herein, or a combination thereof.

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

The terminal device 900 can implement each process implemented by the terminal device in the foregoing embodiment, and in order to avoid repetition, a description is omitted here.

Preferably, the embodiment of the present invention further provides a network device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor implements each process of the above embodiment of the information configuration method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-mentioned processes of the information configuration method embodiment applied to the network device, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

Preferably, the embodiment of the present invention further provides a terminal device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, where the computer program when executed by the processor implements each process of the above embodiment of the information determining method, and the same technical effects can be achieved, so that repetition is avoided, and details are not repeated here.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the above-mentioned processes of the information determining method embodiment applied to the terminal device, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. ROM/RAM, magnetic disk, optical disk) comprising instructions for causing a terminal (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the method according to the embodiments of the present invention.

The embodiments of the present invention have been described above with reference to the accompanying drawings, but the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present invention and the scope of the claims, which are to be protected by the present invention.

Claims

1. An information configuration method applied to a network device, the method comprising:

configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n;

the target QCL reference information corresponds to a demodulation reference signal (DMRS) resource, and is used for carrying out channel estimation and data demodulation by the terminal equipment;

the time margin n is used for the terminal equipment to perform target switching, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (spatialreactioninfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching;

the target QCL reference information includes a target QCL reference source and a target QCL parameter corresponding to the target QCL reference source, the target QCL reference information satisfying at least one of the following conditions:

The target QCL reference source is different from a first QCL reference source comprising a first tracking reference signal TRS resource and a second TRS resource;

the target QCL parameter is different from a first QCL parameter, where the first QCL parameter is all QCL parameters in a QCL type corresponding to the first TRS resource and all QCL parameters in a QCL type corresponding to the second TRS resource.

2. The method according to claim 1, wherein the target QCL reference information is indicated to the terminal device based on a code point in a first downlink control information DCI signaling, the code point including a first TCI state and a second TCI state;

wherein the QCL reference source in the first TCI state is the first TRS resource, and the QCL type in the first TCI state is QCL type a;

the QCL reference source in the second TCI state is the second TRS resource, and the QCL type in the second TCI state is the QCL type A or the first QCL type;

wherein the QCL parameter in the first QCL type is delay spread.

3. The method of claim 2, wherein the target QCL reference source comprises, in the case where the QCL type in the first TCI state and the QCL type in the second TCI state are both the QCL type a: a primary QCL reference source and a non-primary QCL reference source;

Wherein the primary QCL reference source is one of the first TRS resource and the second TRS resource, and the non-primary QCL reference source is the other of the first TRS resource and the second TRS resource;

the target QCL parameters include all QCL parameters in QCL type a corresponding to the main QCL reference source and partial QCL parameters in QCL type a corresponding to the non-main QCL reference source, where the partial QCL parameters are delay spread.

4. The method of claim 3, wherein the first TRS resource or the second TRS resource is configured as the primary QCL reference source, explicitly indicated by the network device to the terminal device by a first signaling; the first signaling includes radio resource control RRC signaling, medium access control unit MAC CE signaling, or downlink control information DCI signaling.

5. The method of claim 3, wherein the first TRS resource or the second TRS resource is configured as the master QCL reference source, and wherein the master QCL reference source is implicitly indicated to the terminal device by the network device via a first order, the first order being a front-to-back order of the first TCI state and the second TCI state in the code point, and wherein the master QCL reference source is a TRS resource in a TCI state arranged in front in the code point.

6. The method of claim 2, wherein the target QCL reference source comprises the first TRS resource and the second TRS resource if the QCL type in the first TCI state is the QCL type a and the QCL type in the second TCI state is the first QCL type;

the target QCL parameters include: all QCL parameters in the QCL type corresponding to the first TRS resource, and all QCL parameters in the first QCL type corresponding to the second TRS resource.

7. The method of claim 1, wherein the target QCL reference resource is a third TRS resource, the third TRS resource is transmitted after frequency offset pre-compensation, and the QCL reference source of the third TRS resource is the first TRS resource or the second TRS resource, the QCL type referred to by the third TRS resource is a QCL type c or a second QCL type, and the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources;

wherein the second QCL type is any QCL type other than QCL type a, QCL type b, QCL type c, and QCL type d;

the target QCL parameters are all QCL parameters in the QCL TypeA.

8. The method of claim 1, wherein the target QCL reference source is a specific DMRS resource if the DMRS resource transmitted in one slot or two consecutive slots is the specific DMRS resource.

9. The method of claim 1, wherein the target QCL reference source is a particular DMRS resource that was last transmitted before the DMRS resource was transmitted, in the case where the DMRS resource transmitted in one time slot or two consecutive time slots is not the particular DMRS resource.

10. The method according to claim 8 or 9, wherein the indication information of the specific DMRS resource is configured through a second signaling, wherein the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling;

the target QCL parameters are all QCL parameters in QCL type a.

11. The method according to claim 1, wherein the time margin n is used for the terminal device to perform the target handover in a handover period after receiving a target signaling, the handover period is a period corresponding to a time T to a time (t+n), the time T is used for the terminal device to send a positive acknowledgement ACK message corresponding to the target signaling, the target handover is completed after the time (t+n) by a protocol, and no signal transmission is performed in the time margin n;

Wherein, the target signaling comprises a media access control unit (MAC CE) signaling or a physical layer control signaling.

12. The method of claim 11, wherein the target handover is completed after time (t+3+n1) by a protocol convention in the case that the target signaling is MAC CE signaling or physical layer control signaling and the target signaling is first spatialreactioninfo handover signaling, wherein n = 3+n1.

13. The method of claim 12, wherein the first spacial relationship info switch signaling is used to indicate that a set of reference signals associated with the spacial relationship info is switched from a first set to a second set;

wherein the first set and the second set are two different reference signal sets, and the first set and the second set are preconfigured by the network device or are agreed by a protocol.

14. The method of claim 11, wherein the target handover is completed after time (t+3+n1) by a protocol convention, where n = 3+n1, in case the target signaling is MAC CE signaling and the target signaling is first TCI state handover signaling.

15. The method of claim 14, wherein the first TCI state switching signaling is configured to instruct a reference signal set associated with a TCI state to switch from a third set to a fourth set;

Wherein the third set and the fourth set are two different sets of reference signals, the third set and the fourth set being preconfigured by the network device or agreed by a protocol.

16. The method of claim 15, wherein the first TCI state switch signaling is used to indicate a particular control resource set CORESET TCI state switch, the particular CORESET TCI state switch comprising a CORESET0 TCI state switch.

17. The method of claim 15, wherein the first TCI state switch signaling is used to indicate PDSCH active TCI state switching.

18. The method of claim 11, wherein the target handover is completed after the time (t+n2) by a protocol convention in case the target signaling is DCI signaling and the target signaling is at least one of a second TCI state handover signaling and a second spatlrelationinfo handover signaling, wherein n = n2.

19. The method of claim 18, wherein the second TCI state switching signaling is used to switch CORESET TCI state or PDSCH TCI state.

20. The method of claim 11, wherein the target signaling is specially-agreed signaling; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following:

TRP switching signaling, RRH switching signaling, TRS switching signaling, SSB switching signaling, third TCI state switching signaling and third SpatialReconnaist switching signaling.

21. The method according to claim 1, characterized in that the target handover is implicitly indicated by the network device to the terminal device;

and the signal transmission is not carried out in the time allowance n.

22. The method of claim 1, wherein the manner in which the time margin n is determined comprises one of:

the time allowance n is agreed by a protocol;

configuring, by the network device, a time margin n;

reporting a time margin n by the terminal equipment;

the network equipment configures the time allowance n based on the time allowance n3 reported by the terminal equipment;

and the network equipment configures the time allowance n based on the time allowance threshold value reported by the terminal equipment.

23. An information determining method applied to a terminal device, the method comprising:

receiving target configuration information configured by network equipment, wherein the target configuration information comprises at least one of target standard co-located QCL reference information and time allowance n, and the target QCL reference information corresponds to demodulation reference signal (DMRS) resources;

Performing channel estimation and data demodulation according to the target QCL reference information;

performing target switching according to the time margin n, wherein the target switching comprises at least one of spatial relationship information crystal oscillator frequency switching, spatialRelationInfo switching, transmission configuration indication state TCI state switching and transmission receiving point TRP switching;

24. The method of claim 23, wherein the target QCL reference information is indicated by the network device based on a code point in a first downlink control information, DCI, signaling, the code point comprising a first TCI state and a second TCI state;

wherein the QCL parameter in the first QCL type is delay spread.

25. The method of claim 24, wherein the target QCL reference source comprises, in the case where the QCL type in the first TCI state and the QCL type in the second TCI state are both the QCL type a: a primary QCL reference source and a non-primary QCL reference source;

26. The method of claim 25, wherein the first TRS resource or the second TRS resource is configured as the primary QCL reference source, explicitly indicated by the network device by a first signaling; the first signaling includes radio resource control RRC signaling, medium access control unit MAC CE signaling, or downlink control information DCI signaling.

27. The method of claim 25, wherein the first TRS resource or the second TRS resource is configured as the master QCL reference source, implicitly indicated by the network device by a first order, the first order being a front-to-back order of the first TCI state and the second TCI state in the code point, and the master QCL reference source being a TRS resource in a TCI state arranged in front of the code point.

28. The method of claim 24, wherein the target QCL reference source comprises the first TRS resource and the second TRS resource if the QCL type in the first TCI state is the QCL type a and the QCL type in the second TCI state is the first QCL type;

29. The method of claim 23, wherein the target QCL reference resource is a third TRS resource, the third TRS resource is transmitted by the network device after frequency offset pre-compensation, and the QCL reference source of the third TRS resource is the first TRS resource or the second TRS resource, the QCL type referred to by the third TRS resource is QCL type c or a second QCL type, and the first TRS resource, the second TRS resource, and the third TRS resource are all periodic TRS resources;

the target QCL parameters are all QCL parameters in QCL type a.

30. The method of claim 23, wherein the target QCL reference source is a particular DMRS resource if the DMRS resource received in one slot or two consecutive slots is the particular DMRS resource.

31. The method of claim 23, wherein the target QCL reference source is a particular DMRS resource that was last transmitted before the DMRS resource was transmitted, in the case where the DMRS resource received in one time slot or two consecutive time slots is not the particular DMRS resource.

32. The method of claim 30 or 31, wherein the indication information of the specific DMRS resource is configured by the network device through a second signaling, wherein the second signaling includes RRC signaling, MAC CE signaling, or DCI signaling;

the target QCL parameters are all QCL parameters in QCL type a.

33. The method of claim 23, wherein said performing a target handover according to said time margin n comprises:

Transmitting a positive Acknowledgement (ACK) message corresponding to the target signaling to the network equipment at a time T;

in a switching period corresponding to the time T to the time (T+n), carrying out target switching according to the target signaling, wherein the target switching is completed after the time (T+n) by protocol convention, and signal transmission is not carried out in the time allowance n;

34. The method of claim 33, wherein the target handover is completed after time (t+3+n1) by a protocol convention in the case that the target signaling is MAC CE signaling or physical layer control signaling and the target signaling is first spatialreactioninfo handover signaling, wherein n = 3+n1.

35. The method of claim 34, wherein the first spacial relationship info switch signaling is used to indicate that a set of reference signals associated with the spacial relationship info is switched from a first set to a second set;

36. The method of claim 33, wherein the target handover is completed after time (t+3+n1) by a protocol convention in the case where the target signaling is MAC CE signaling and the target signaling is first TCI state handover signaling, where n = 3+n1.

37. The method of claim 36, wherein the first TCI state switching signaling is configured to instruct a reference signal set associated with a TCI state to switch from a third set to a fourth set;

38. The method of claim 37, wherein the first TCI state switch signaling is used to indicate a particular control resource set CORESET TCI state switch, the particular CORESET TCI state switch comprising a CORESET0 TCI state switch.

39. The method of claim 37, wherein the first TCI state switch signaling is used to indicate PDSCH active TCI state switching.

40. The method of claim 33, wherein the target handover is completed after time (t+n2) by a protocol convention in case the target signaling is DCI signaling and the target signaling is at least one of a second TCI state handover signaling and a second spatlrelationinfo handover signaling, where n = n2.

41. The method of claim 40, wherein the second TCI state switching signaling is used to switch CORESET TCI state or PDSCH TCI state.

42. The method of claim 33, wherein the target signaling is specially-agreed signaling; wherein the specially agreed signaling is newly defined signaling in the high-speed railway mode and comprises one of the following:

43. The method of claim 23, wherein the target handover is implicitly indicated by the network device; and the signal transmission is not carried out in the time allowance n.

44. The method of claim 23, wherein the determining of the time margin n comprises one of:

the time allowance n is agreed by a protocol;

configuring, by the network device, a time margin n;

reporting a time margin n by the terminal equipment;

45. A network device, comprising:

the configuration module is used for configuring target configuration information, wherein the target configuration information comprises at least one of target standard co-location QCL reference information and time allowance n;

46. A terminal device, comprising:

a receiving module, configured to receive target configuration information configured by a network device, where the target configuration information includes at least one of target standard co-located QCL reference information and a time margin n;

the first processing module is used for carrying out channel estimation and data demodulation according to the target QCL reference information;

the second processing module is used for performing target switching according to the time allowance n, wherein the target switching comprises at least one of crystal oscillator frequency switching, spatial relation information (SpatialRelationInfo) switching, transmission configuration indication state (TCI state) switching and Transmission Receiving Point (TRP) switching;

wherein, the target QCL reference information corresponds to demodulation reference signal DMRS resources;

47. A network device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to any one of claims 1 to 22.

48. A terminal device, comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, performs the steps of the method according to any of claims 23 to 44.

49. A computer readable storage medium, characterized in that it has stored thereon a computer program which, when executed by a processor, implements the steps of the method according to any of claims 1 to 22 or which, when executed by a processor, implements the steps of the method according to any of claims 23 to 44.