CN110299978B

CN110299978B - Information transmission method, terminal and network equipment

Info

Publication number: CN110299978B
Application number: CN201810244924.4A
Authority: CN
Inventors: 吴凯; 潘学明
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2018-03-23
Filing date: 2018-03-23
Publication date: 2020-10-02
Anticipated expiration: 2038-03-23
Also published as: WO2019179261A1; CN110299978A

Abstract

The invention discloses an information transmission method, a terminal and network equipment, wherein the method comprises the following steps: determining a quasi-co-location relationship between the early indication signal and the target signal; and if the advanced indication signal and the target signal are quasi co-located, receiving the advanced indication signal or the target signal from the network equipment side according to the quasi co-located parameter. The terminal of the invention directly receives the advanced indication signal or the target signal from the network equipment side according to the quasi co-location parameter without carrying out complex beam training by determining the quasi co-location relation of the advanced indication signal and the target signal when the two are quasi co-located, thereby ensuring better receiving performance and being beneficial to saving electricity of the terminal.

Description

Information transmission method, terminal and network equipment

Technical Field

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

Background

In the fourth generation (4)^thGeneration, 4G) and fifth Generation (5)^thGeneration, 5G) communication system, in a Discontinuous Reception (DRX) scenario, the basic mechanism of DRX is: a terminal in a connected (RRC _ connected) state is configured with a DRX cycle (cycle), as shown in fig. 1, fig. 1 shows a time domain diagram of the DRX cycle, where the DRX cycle includes an active period (On Duration) in which the terminal monitors and receives a PDCCH, and a dormant period (Opportunity for DRX) in which the terminal does not receive data of a downlink channel to save power consumption. In most cases, after a terminal is scheduled to receive or transmit data in a certain subframe, it is likely to continue to be scheduled in the next several subframes, and if it waits for the next DRX cycle to receive or transmit, the data will cause extra delay. To reduce such delays, the terminals may remain in the active period after being scheduled. Specifically, when the terminal is scheduled to initially transmit data, a timer is started or restarted, and the terminal is always in an active period during the time that the timer is not overtime.

In order To further save the power consumption of a blind detection Paging (Paging) Signal or a Physical Downlink Control Channel (PDCCH) in a Discontinuous Reception (DRX) scene, the concepts of a Wake-Up Signal (WUS) and a Sleep Signal (Go To Sleep Signal (GTS) are proposed, and the WUS or the GTS detection is lower in complexity and more power-saving than the blind detection Paging Signal or the PDCCH. A 5G system, or a New Radio (NR) system, is a multi-beam transmission system, and needs to receive signals based on a preferred receiving beam to obtain better receiving performance. In order to ensure that signal transmission between the network device and the terminal is transmitted on a beam with good quality, the network device and the terminal need to maintain an optimal beam by transmitting and receiving signals and controlling the transmission and reception of the signals, and the terminal does not receive the signals for a long time in a DRX or idle (idle) state, so that when the terminal is started to receive next time, the signal transmission between the terminal and the network device cannot be performed on the optimal beam, and the reception performance of the signals at the reception starting moment is affected. If a better reception performance during the DRX active period or Paging Opportunity (PO) period is to be ensured, an optimal reception beam needs to be determined, and if the terminal frequently wakes up to perform beam training, the complexity is high and the power consumption of the terminal is large.

Disclosure of Invention

The embodiment of the invention provides an information transmission method, a terminal and network equipment, and aims to solve the problems that in the prior art, beam training is frequently performed to ensure better receiving performance, the beam training complexity is high, and the power consumption of the terminal is large.

In a first aspect, an embodiment of the present invention provides an information transmission method, applied to a terminal side, including:

determining a quasi-co-location relationship between the early indication signal and the target signal;

and if the advanced indication signal and the target signal are quasi co-located, receiving the advanced indication signal or the target signal from the network equipment side according to the quasi co-located parameter.

In a second aspect, an embodiment of the present invention further provides a terminal, including:

the determining module is used for determining the quasi-co-location relation between the advance indicating signal and the target signal;

and the receiving module is used for receiving the advanced indication signal or the target signal from the network equipment side according to the quasi co-location parameter if the advanced indication signal and the target signal are quasi co-located.

In a third aspect, an embodiment of the present invention provides a terminal, where the terminal includes a processor, a memory, and a computer program stored in the memory and being executable on the processor, and the computer program, when executed by the processor, implements the steps of the information transmission method described above.

In a fourth aspect, an embodiment of the present invention provides an information transmission method, applied to a network device side, including:

when the early indication signal is quasi co-located with the target signal, at least one of the following information is sent to the terminal: the system comprises system information, a Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) control unit (CE) and Downlink Control Information (DCI), wherein the information is used for indicating whether an advance indication signal and a target signal are quasi co-located or not.

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

a sending module, configured to send, to the terminal, at least one of the following information when the early indication signal is quasi-co-located with the target signal: the system comprises system information, a Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) control unit (CE) and Downlink Control Information (DCI), wherein the information is used for indicating whether an advance indication signal and a target signal are quasi co-located or not.

In a sixth aspect, an embodiment of the present invention further provides a network device, where the network device includes a processor, a memory, and a computer program stored in the memory and running on the processor, and the processor implements the steps of the information transmission method when executing the computer program.

In a seventh 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, and when the computer program is executed by a processor, the steps of the information transmission method are implemented.

Therefore, the terminal of the embodiment of the invention directly receives the advanced indication signal or the target signal from the network equipment side according to the quasi co-location parameter without carrying out complex beam training by determining the quasi co-location relation of the advanced indication signal and the target signal when the two are quasi co-located, thereby ensuring better receiving performance.

Drawings

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

Figure 1 shows a DRX cycle diagram;

figure 2 shows a time domain diagram of a DRX cycle;

fig. 3 is a flowchart illustrating an information transmission method at a terminal side according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a time-frequency domain transmission resource mapping of a synchronization signal block according to an embodiment of the present invention;

FIG. 5 is a diagram illustrating a transmission resource mapping when an early indicator signal is quasi-co-located with a synchronization signal block;

FIG. 6 is a diagram illustrating a transmission resource mapping when an early indicator signal is quasi-co-located with a physical downlink channel;

fig. 7 is a schematic block diagram of a terminal according to an embodiment of the present invention;

FIG. 8 shows a block diagram of a terminal of an embodiment of the invention;

fig. 9 is a flowchart illustrating an information transmission method on a network device side according to an embodiment of the present invention;

FIG. 10 is a block diagram of a network device according to an embodiment of the present invention;

fig. 11 shows a block diagram of a network device of an embodiment of the invention.

Detailed Description

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention can be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus. "one of A, B and C" and "A, B or C" are intended to include any of A, B, C.

In 4G and 5G communication systems, terminals in a Radio Resource control (RRC _ idle) layer idle state need to detect a paging signal sent by a network device at a pre-configured time, where a specific paging signal process is as follows: blind detecting a PDCCH (physical downlink control channel) corresponding to a Paging Radio Network temporary identity (P-RNTI), and if the PDCCH is not detected, ending the detection; if the presence of the PDCCH is detected, a Physical Downlink Shared Channel (PDSCH) indicated by the PDCCH is further detected, and if the detected PDSCH is not a paging signal of the terminal, the detection is terminated. Otherwise, the detected PDSCH is the paging signal of the terminal. In the RRC _ idle state, the terminal periodically detects paging signals, and the power consumption of detecting the PDCCH or PDSCH each time is large, but the probability of detecting paging signals belonging to the terminal is low, which is not favorable for the terminal to save power. Those skilled in the art will appreciate that the 4G and 5G communication systems are merely exemplary and that the scope of the present invention is not limited to a particular communication system.

In the DRX scenario, the basic mechanism of DRX is: configuring a DRX cycle (cycle) for a terminal in a connected (RRC _ connected) state, including an active period in which the terminal monitors and receives a PDCCH, and a dormant period in which the terminal does not receive data of a downlink channel to save power consumption. That is, in the time domain, time is divided into successive DRX cycles. Wherein, the DRX start offset (drxStartOffset) is used to indicate the start subframe of the DRX Cycle, and the long DRX Cycle (long DRX-Cycle) is used to indicate how many subframes the long DRX Cycle occupies. Where both parameters are determined by the longDRX-CycleStartOffset field. The active period Timer (On Duration Timer) specifies the number of consecutive subframes (i.e., the number of subframes for which the active period lasts) for which monitoring of the PDCCH is required from the starting subframe of the DRX cycle.

In most cases, after a terminal is scheduled to receive or transmit data in a certain subframe, it is likely to continue to be scheduled in the next several subframes, and if it waits for the next DRX cycle to receive or transmit, the data will cause extra delay. To reduce such delay, the terminal may continue to be in the active period after being scheduled, i.e., may continue to monitor the PDCCH during the configured active period. Specifically, when the terminal is scheduled to initially transmit data, a deactivation timer (drx-inactivity timer) is started or restarted, and the terminal is always in an active period during the time that the timer is not expired. The drx-inactivity timer specifies the number of consecutive subframes that are continuously in an active state after the terminal successfully decodes a PDCCH indicating Uplink (UL) or Downlink (DL) user data to be transmitted first. I.e. the timer is restarted once each time the terminal has the initial data to be transmitted scheduled.

In order to further save the power consumption of blind detection Paging signal or PDCCH in DRX scenario, concepts of WUS and GTS are proposed, wherein WUS and GTS are collectively referred to as advance indication signal. In each DRX period of an idle state or an RRC connected state or in the RRC connected state (DRX OFF), before the terminal blindly detects a Paging signal or a PDCCH, the network equipment firstly transmits a WUS to the terminal, and the terminal wakes up at the corresponding moment to detect the WUS. If the terminal detects the WUS, the terminal blindly detects a Paging signal or a PDCCH; otherwise, the terminal does not blindly detect the Paging signal or the PDCCH and continues to sleep. As shown in fig. 2, when the network device configures a WUS for the terminal, the terminal may detect the WUS on a physical channel, determine that PDCCH detection is required in the next DRX cycle if the WUS is detected, and determine that PDCCH detection is not required in the next DRX cycle if the WUS is not detected, and continue to maintain the sleep state. Alternatively, in each DRX cycle of the idle state or the RRCconnected state, the network device may further transmit a GTS to the terminal before the terminal blindly detects the Paging signal or the PDCCH, and the terminal wakes up to detect the GTS at a corresponding time. If the terminal detects the GTS, the terminal does not blindly detect the Paging signal or the PDCCH and continues to sleep; otherwise, the terminal blindly detects the Paging signal or the PDCCH. Among them, detecting WUS or GTS is less complex and more power efficient than blindly detecting Paging signals or PDCCH.

Further, the current designs of the early indication signals (including WUS or GTS) include the following: OOK (on-off keying), sequence (with or without DTX), channel coded payload (payload) such as PDCCH, etc., sequence + payload (e.g., receiving sequence to complete synchronization, and then receiving payload in a synchronized state).

Here, taking the sequence as an example, the early indication signal may be transmitted discontinuously (with DTX) or without discontinuous transmission (without DTX). Taking the with DTX as an example: when the early indication signal bears the WUS sequence, if the terminal detects the WUS sequence, the terminal determines that PDCCH detection is needed in the next DRX period, and if the WUS sequence is not detected, the terminal determines that the PDCCH is not needed in the next DRX period. Similarly, when the early indication signal carries the GTS sequence, if the GTS sequence is not detected, it is determined that PDCCH detection is required in the next DRX cycle, and if the GTS sequence is detected, it is determined that PDCCH detection is not required in the next DRX cycle. Take without DTX as an example: when the WUS sequence is carried by the early indication signal, if the WUS sequence is detected to be in a first sequence format, the corresponding PDCCH is determined to be required to be detected in the next DRX period, and if the WUS sequence is detected to be in a second sequence format, the corresponding PDCCH is determined not to be required to be detected in the next DRX period, and the terminal continues to sleep. Similarly, when the early indication signal carries the GTS sequence, if it is detected that the GTS sequence is in the third sequence format, it is determined that the corresponding PDCCH needs to be detected in the next DRX cycle, and if it is detected that the GTS sequence is in the fourth sequence format, it is determined that the corresponding PDCCH does not need to be detected in the next DRX cycle, and the terminal continues to sleep.

An embodiment of the present invention provides an information transmission method, which is applied to a terminal side, and as shown in fig. 3, the method includes the following steps:

step 31: and determining the quasi-co-location relation of the advance indication signal and the target signal.

Wherein the advance indication signal includes: at least one of a wake signal WUS and a sleep signal GTS. The advance indication signal may be transmitted in the form of a sequence or a PDCCH. The early indication signal may be used to indicate whether the terminal performs Radio Resource Management (RRM) measurement, in addition to indicating whether the terminal performs PDCCH/PDSCH reception. If the signals of the two antenna ports satisfy the QCL relationship, at least one of Doppler shift (Doppler shift), Doppler spread (Doppler spread), average delay (average delay), delay spread (delay spread), Spatial Rx parameter (Spatial Rx parameter), of the channels experienced by the two sets of signals is approximately the same.

It is worth noting that the target signal includes: a Synchronization Signal Block (SSB), a Channel State indication Reference Signal (CSI-RS), a paging opportunity PO, or a Signal carried in a physical downlink Channel. The physical downlink channel comprises: PDCCH or PDSCH, and signals carried in a physical downlink control channel include: signals carried in the PDCCH, such as PDCCH and Demodulation Reference Signal (DMRS) of the PDCCH, and signals carried in the PDSCH, such as DMRS of the PDSCH and the PDSCH.

Taking SSB as an example, as shown in fig. 4, SSB occupies 240 REs in the frequency direction and 4 OFDM symbols in the time direction, where the SSB includes Primary Synchronization Signal (PSS), Secondary Synchronization Signal (SSS), Physical Broadcast Channel (PBCH) Signal and DMRS of PBCH. The mapping positions of the signals within the resources of the SSB are shown in table 1:

TABLE 1

Wherein the content of the first and second substances,

step 32: and if the advanced indication signal and the target signal are quasi co-located, receiving the advanced indication signal or the target signal from the network equipment side according to the quasi co-located parameter.

Since the NR system is based on multi-beam transmission, reception of signals requires reception based on a preferred reception beam to achieve good reception performance. If the early indication signal and one of the target signals are Quasi Co-located (QCL), the same receive beam as its QCL's target signal may be used for reception when receiving the early indication signal. Likewise, if the other target signal and the advance indicator signal are QCL, the target signal may be received using the same receive beam as the receive advance indicator signal. That is, under the condition that the QCL relationship between different signals is defined, the receiving end can conveniently determine the preferred receiving beam, the complexity caused by repeated beam training is avoided, and the power saving of the terminal is facilitated.

The following embodiment will describe how the terminal determines the quasi-co-location relationship between the early indication signal and other target signals in conjunction with a preferred implementation manner.

The method comprises the following steps of receiving at least one item of information from a network equipment side: system Information, RRC dedicated signaling for radio resource Control, Media Access Control (MAC) Control Element (CE), and Downlink Control Information (DCI); and determining the quasi-co-location relation between the advanced indication signal and the target signal according to the indication of the information.

The method is an explicit indication method, and taking the target signal as an SSB as an example, the QCL relationship between the advanced indication signal and the SSB corresponding to a certain SSB resource index (index) is indicated through system information, RRC dedicated (specific) signaling, MAC-CE, or DCI. Taking CSI-RS as an example, the QCL relationship between the advanced indication signal and the CSI-RS corresponding to a certain CSI-RS resource index is indicated through system information, RRC dedicated (specific) signaling, MAC-CE, or DCI. Taking PO as an example, the QCL relationship between the advance indication signal and PO is indicated by the system information. Taking PDCCH as an example, the QCL relationship between the advance indication signal and the PDCCH that needs to be monitored in the On duration is indicated by system information, RRC dedicated (specific) signaling, MAC-CE, or DCI.

In this manner, the information for indicating the quasi-co-location relationship between the advanced indicator signal and the target signal further includes indication information for indicating a quasi-co-location type, where the quasi-co-location type is used to indicate that at least one of doppler frequency shift, doppler spread, average delay, delay spread, and spatial reception parameters is quasi-co-located. If the information indicates that the quasi co-location type is QCL-TypeA, the Doppler frequency shift, the Doppler spread, the average time delay and the time delay spread are quasi co-location; if the information indicates that the quasi co-location type is QCL-TypeB, the Doppler frequency shift and the Doppler spread are quasi co-located; if the information indicates that the quasi co-location type is QCL-TypeC, the Doppler frequency offset and the average time delay are quasi co-location; and if the information indicates that the quasi co-location type is QCL-TypeD, the space receiving parameter is quasi co-location. For example, the QCL type may be indicated through RRC dedicated signaling, that is, which parameters are QCL, and if the parameters of Doppler shift, Doppler spread, average delay, and delay spread satisfy QCL, the channel estimation of PDCCH-DMRS may perform channel estimation according to the estimated delay Doppler and other parameters of SSB/WUS of the QCL, so as to reduce estimation complexity.

Preferably, the association between the WUS and the SSB (particularly the association relationship of the non-QCL) is configured by system information or RRC-dedicated signaling, and the WUS can determine the timing of the WUS with the associated SSB.

And secondly, determining the quasi co-location relation between the advanced indication signal and the target signal according to the relation between the first transmission resource and the second transmission resource. The first transmission resource is used for transmitting the early indication signal, and the second transmission resource is used for transmitting the target signal.

This mode is an implicit indication mode. Taking the target signal as the SSB for example, the advanced indication signal and a certain SSB are considered to satisfy the QCL relationship when the time and/or frequency resource location between the advanced indication signal and the SSB satisfies a certain condition. Taking the CSI-RS as an example, when the time and/or frequency resource location between the early indication signal and a certain CSI-RS satisfies a certain condition, the early indication signal and the certain CSI-RS are considered to satisfy the QCL relationship. Taking PO or PDCCH as an example, when the time and/or frequency resource location between the early indication signal and the PDCCH to be monitored in PO/on duration satisfies a certain condition, the early indication signal and the PO/PDCCH are considered to satisfy the QCL relationship.

Preferably, the step of determining a quasi co-location relationship between the early indication signal and the target signal according to a relationship between the first transmission resource and the second transmission resource comprises:

and when the first transmission resource and the second transmission resource are separated by a preset time interval, determining that the advance indication signal is quasi co-located with the target signal. Taking the advance indication signal as WUS and the target signal as SSB as an example, when the time interval between WUS and SSB is T1(ms, slot, OFDM symbol symbols, etc.), it is determined that the QCL relationship is satisfied between the WUS and SSB. Taking CSI-RS as an example, when the time interval between the advance indication signal and the CSI-RS resource is T1, it is determined that the QCL relationship is satisfied between the two. Taking PDCCH as an example, when the time interval between the early indicator signal and the PDCCH needing monitoring is T1, it is determined that the two satisfy the QCL relationship.

For example, for a terminal in idle state or in C-DRX, there may be a fixed time relationship between the WUS and the SSB, and in order to ensure transmission performance, the WUS may transmit in a multi-beam (beam swaping) manner, i.e., multiple transmissions are performed in different beam directions, and the transmitted beams are a set or subset of the beams transmitted by the SSB. As shown in fig. 5, there may be a fixed time offset T0 between the WUS and SSB, and then a QCL relationship is satisfied with the SSB of the WUS interval T0. Or, for a terminal in an idle state or in C-DRX, there may be a fixed time relationship between the WUS and the PDCCH indicated by the WUS, and in order to ensure transmission performance, both the WUS and the PDCCH may be transmitted in a beam swaping manner, that is, multiple transmissions are performed in different beam directions. As shown in fig. 6, there is a time interval of T1 between the WUS and the PDCCH indicating that monitoring is required, and then a QCL relationship is satisfied between the PDCCH, PDCCH-DMRS, PDSCH and PDSCH-DMRS at the WUS interval T1.

Preferably, when the first transmission resource and the second transmission resource are separated by a preset time interval, the step of determining that the advance indication signal is quasi co-located with the target signal comprises: and when the first transmission resource is positioned in the Nth time window before or after the second transmission resource, determining that the advance indication signal and the target signal are quasi co-located, wherein N is a positive integer. Taking SSB as an example, if the early indication signal is transmitted within a certain time window relative to SSB, it is determined that both satisfy the QCL relationship. Taking CSI-RS as an example, if the early indication signal is transmitted within a certain time window relative to CSI-RS, it is determined that the two satisfy the QCL relationship. Taking PDCCH as an example, if the advance indication signal is transmitted within a certain time window with respect to PDCCH, it is determined that QCL relationship is satisfied between the two. If the WUS transmitted on a different Bandwidth Part (BWP) indicates whether monitoring of the PDCCH is required on the BWP, the WUS transmitted on the same BWP and the PDCCH, PDCCH-DMRS, PDSCH and PDSCH-DMRS required to be received by the terminal on the same indicated frequency band satisfy QCL relationship.

Or when the frequency interval between the first transmission resource and the second transmission resource is smaller than a preset threshold value, determining that the advance indication signal and the target signal are quasi co-located. Taking the case that the advance indication signal is WUS and the target signal is SSB, when the frequency between WUS and SSB is less than delta _ f, it is determined that the QCL relationship between the WUS and SSB is satisfied. Taking the CSI-RS as an example, when the frequency interval between the advance indicator signal and the CSI-RS is smaller than delta _ f, i.e. within the same frequency range, it is determined that the QCL relationship is satisfied between the two. Taking the PDCCH as an example, when the frequency interval between the early indication signal and the control resource set (CORESET) where the PDCCH to be monitored is located is less than delta _ f, that is, within the same frequency range, it is determined that the two satisfy the QCL relationship.

Or when a preset time interval is arranged between the first transmission resource and the second transmission resource and the frequency interval between the first transmission resource and the second transmission resource is smaller than a preset threshold value, determining that the advance indication signal and the target signal are quasi co-located. Taking the target signal as the SSB for example, when the time interval between the advance indication signal and the SSB is T1 and the frequency between the advance indication signal and the SSB is less than delta _ f, it is determined that the QCL relationship is satisfied between the two. Similarly, when the target signal is CSI-RS or PDCCH, the way of determining whether it is quasi-co-located with the early indication signal is similar to the SSB, and therefore, the description thereof is omitted here.

In addition to the implementation of the second embodiment described above, in a scenario where the early indication signal is transmitted in a signal sequence, if the early indication signal is generated based on a certain target signal resource index, it is considered that QCL is satisfied between the early indication signal and the target signal corresponding to the target signal resource index. Taking the target signal as an SSB as an example, if the early indication signal is generated based on a certain SSB resource index, it is considered that the QCL is satisfied between the early indication signal and the SSB corresponding to the SSB resource index. For example: the advance indication signal is transmitted in the form of a gold sequence, and if the gold sequence is initialized or scrambled using the SSB resource index, it is determined that both are QCLs. Alternatively, the advance indication signal is transmitted in the form of a ZC sequence, and if the ZC sequence determines a root sequence and/or a cyclic shift value using the SSB resource index, it determines both to be QCL. Or, the advance indication signal is transmitted in the form of a CGS sequence, and if the CGS sequence is determined according to the SSB resource index, both are determined to be QCL. Alternatively, the advance indication signal is transmitted in the form of a walsh sequence, and if the walsh sequence is determined according to the SSB resource index, both are determined to be QCLs.

Taking the CSI-RS as an example, if the advanced indication signal is generated based on a certain CSI-RS resource index, it is considered that QCL is satisfied between the advanced indication signal and the CSI-RS corresponding to the CSI-RS resource index. For example: the advance indication signal is transmitted in the form of a gold sequence, and if the gold sequence is initialized or scrambled using the CSI-RS resource index, it is determined that both are QCLs. Or, the advance indication signal is transmitted in the form of a ZC sequence, and if the ZC sequence determines a root sequence and/or a cyclic shift value using the CSI-RS resource index, it is determined that both are QCLs. Or, the advance indication signal is transmitted in the form of a CGS sequence, and if the CGS sequence is determined according to the CSI-RS resource index, the both are determined to be QCL. Or, the advance indication signal is transmitted in the form of a walsh sequence, and if the walsh sequence is determined according to the CSI-RS resource index, both are determined to be QCLs.

In a preferred embodiment, the step of step 32 comprises: receiving a target signal from the network equipment side according to the quasi co-location parameter of the advanced indication signal; or receiving an advance indication signal from the network equipment side according to the quasi co-location parameter of the target signal. For example, the system information includes a QCL relationship indication between the WUS and the SSB, and when receiving the WUS, the terminal in an idle state receives the WUS using the same quasi-co-location parameter as the SSB of the QCL according to the QCL relationship indicated by the system information. Alternatively, the QCL relationship between the WUS and a certain SSB or a certain CSI-RS is indicated by RRC dedicated signaling or MAC-CE, and for a terminal in the connected state and in C-DRX, WUS reception can be performed using the same quasi co-location parameters as the SSB or CSI-RS of its QCL.

When the target signal is a signal carried in a physical downlink channel, step 32 includes: and receiving the signal carried in the physical downlink channel from the network equipment side according to the quasi co-location parameter of the advanced indication signal. Taking PDCCH as an example, if the advance indication signal and PDCCH are quasi co-located, the same reception beam as the advance indication signal of its QCL may be used for reception when receiving PDCCH. Therefore, the receiving end can conveniently determine the optimal receiving beam, the complexity caused by repeated beam training is avoided, and the power saving of the terminal is facilitated.

In the information transmission method of the embodiment of the invention, the terminal directly receives the advanced indication signal or the target signal from the network equipment side according to the quasi co-location parameter without carrying out complex beam training by determining the quasi co-location relation between the advanced indication signal and the target signal, when the two are quasi co-located, better receiving performance can be ensured, and the power saving of the terminal is facilitated.

The above embodiments describe information transmission methods in different scenarios, and a terminal corresponding to the method will be further described with reference to the accompanying drawings.

As shown in fig. 7, the terminal 700 according to the embodiment of the present invention can determine the quasi-co-location relationship between the early indication signal and the target signal in the foregoing embodiment; if the early indication signal and the target signal are quasi co-located, the details of the method for receiving the early indication signal or the target signal from the network device side according to the quasi co-located parameters are received, and the same effect is achieved, the terminal 700 specifically includes the following functional modules:

a determining module 710, configured to determine a quasi-co-located relationship between the advance indication signal and the target signal;

a receiving module 720, configured to receive the early indication signal or the target signal from the network device side according to the quasi-co-location parameter if the early indication signal and the target signal are quasi-co-located.

Wherein the determining module 710 comprises:

a first receiving submodule, configured to receive, from a network device side, at least one of the following information: system information, Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) layer control unit (CE) and Downlink Control Information (DCI);

and the first determining submodule is used for determining the quasi-co-location relation between the advance indicating signal and the target signal according to the indication of the information.

Wherein the information further comprises indication information for indicating a quasi co-location type, the quasi co-location type being used to indicate that at least one of doppler frequency shift, doppler spread, average delay, delay spread and spatial reception parameters is quasi co-located.

Wherein, the determining module 710 further comprises:

the second determining submodule is used for determining the quasi co-location relation between the advanced indication signal and the target signal according to the relation between the first transmission resource and the second transmission resource; the first transmission resource is used for transmitting the early indication signal, and the second transmission resource is used for transmitting the target signal.

Wherein the second determination submodule includes:

a first determining unit, configured to determine that the advance indication signal is quasi co-located with the target signal when a preset time interval is provided between the first transmission resource and the second transmission resource;

alternatively, the first and second electrodes may be,

and the second determining unit is used for determining that the advance indication signal is quasi-co-located with the target signal when the frequency interval between the first transmission resource and the second transmission resource is smaller than a preset threshold value.

Wherein the first determination unit includes:

and the determining subunit is configured to determine that the advance indication signal is quasi co-located with the target signal when the first transmission resource is located in an nth time window before or after the second transmission resource, where N is a positive integer.

Wherein, the receiving module 720 further comprises:

the second receiving submodule is used for receiving a target signal from the network equipment side according to the quasi co-location parameter of the advanced indication signal; alternatively, the first and second electrodes may be,

and the third receiving submodule is used for receiving the advanced indication signal from the network equipment side according to the quasi co-location parameter of the target signal.

Wherein the target signal comprises: the synchronization signal block SSB or the channel state indication reference signal CSI-RS.

Wherein the target signal further comprises: the receiving module 720 further includes:

and the fourth receiving submodule is used for receiving the signal carried in the physical downlink channel from the network equipment side according to the quasi co-location parameter of the advanced indication signal.

It is worth pointing out that, by determining the quasi-co-location relationship between the advanced indication signal and the target signal, the terminal according to the embodiment of the present invention directly receives the advanced indication signal or the target signal from the network device side according to the quasi-co-location parameter without performing complex beam training when the two are quasi-co-located, which can ensure better receiving performance and is beneficial to saving power of the terminal.

To better achieve the above object, further, fig. 8 is a schematic diagram of a hardware structure of a terminal implementing various embodiments of the present invention, where the terminal 80 includes, but is not limited to: radio frequency unit 81, network module 82, audio output unit 83, input unit 84, sensor 85, display unit 86, user input unit 87, interface unit 88, memory 89, processor 810, and power supply 811. Those skilled in the art will appreciate that the terminal configuration shown in fig. 8 is not intended to be limiting, and that the terminal may include more or fewer components than shown, or some components may be combined, or a different arrangement of components. In the embodiment of the present invention, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer, and the like.

The processor 810 is configured to determine a quasi-co-location relationship between the advance indication signal and the target signal;

a radio frequency unit 81, configured to receive the advance indication signal or the target signal from the network device side according to the quasi co-location parameter if the advance indication signal and the target signal are quasi co-located;

the terminal of the embodiment of the invention directly receives one of the advanced indication signal and the target signal from the network equipment side according to the quasi co-location parameter without carrying out complex beam training by determining the quasi co-location relation of the advanced indication signal and the target signal, thereby ensuring better receiving performance and being beneficial to saving electricity of the terminal.

It should be understood that, in the embodiment of the present invention, the radio frequency unit 81 may be used for receiving and sending signals during a message sending and receiving process or a call process, and specifically, receives downlink data from a base station and then processes the received downlink data to the processor 810; in addition, the uplink data is transmitted to the base station. In general, the radio frequency unit 81 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 81 can also communicate with a network and other devices through a wireless communication system.

The terminal provides wireless broadband internet access to the user via the network module 82, such as to assist the user in sending and receiving e-mails, browsing web pages, and accessing streaming media.

The audio output unit 83 may convert audio data received by the radio frequency unit 81 or the network module 82 or stored in the memory 89 into an audio signal and output as sound. Also, the audio output unit 83 may also provide audio output related to a specific function performed by the terminal 80 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 83 includes a speaker, a buzzer, a receiver, and the like.

The input unit 84 is used to receive audio or video signals. The input Unit 84 may include a Graphics Processing Unit (GPU) 841 and a microphone 842, the Graphics processor 841 Processing image data of still pictures or videos obtained by an image capturing apparatus (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 86. The image frames processed by the graphic processor 841 may be stored in the memory 89 (or other storage medium) or transmitted via the radio frequency unit 81 or the network module 82. The microphone 842 may receive sound and may be capable of processing such sound into audio data. The processed audio data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 81 in case of the phone call mode.

The terminal 80 also includes at least one sensor 85, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 861 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 861 and/or the backlight when the terminal 80 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally three axes), detect the magnitude and direction of gravity when stationary, and can be used to identify the terminal posture (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration identification related functions (such as pedometer, tapping), and the like; the sensors 85 may also include a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, an infrared sensor, etc., which are not described in detail herein.

The display unit 86 is used to display information input by the user or information provided to the user. The Display unit 86 may include a Display panel 861, and the Display panel 861 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 87 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 87 includes a touch panel 871 and other input devices 872. The touch panel 871, also referred to as a touch screen, may collect touch operations by a user on or near the touch panel 871 (e.g., operations by a user on or near the touch panel 871 using a finger, a stylus, or any suitable object or accessory). The touch panel 871 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 810, receives a command from the processor 810, and executes the command. In addition, the touch panel 871 can be implemented by various types such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. The user input unit 87 may include other input devices 872 in addition to the touch panel 871. Specifically, the other input devices 872 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which are not described in detail herein.

Further, the touch panel 871 can be overlaid on the display panel 861, and when the touch panel 871 detects a touch operation on or near the touch panel 871, the touch panel 871 is transmitted to the processor 810 to determine the type of the touch event, and then the processor 810 provides a corresponding visual output on the display panel 861 according to the type of the touch event. Although the touch panel 871 and the display panel 861 are shown in fig. 8 as two separate components to implement the input and output functions of the terminal, in some embodiments, the touch panel 871 and the display panel 861 may be integrated to implement the input and output functions of the terminal, which is not limited herein.

The interface unit 88 is an interface for connecting an external device to the terminal 80. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 88 may be used to receive input (e.g., data information, power, etc.) from an external device and transmit the received input to one or more elements within the terminal 80 or may be used to transmit data between the terminal 80 and an external device.

The memory 89 may be used to store software programs as well as various data. The memory 89 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 89 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 810 is a control center of the terminal, connects various parts of the entire terminal using various interfaces and lines, and performs various functions of the terminal and processes data by operating or executing software programs and/or modules stored in the memory 89 and calling data stored in the memory 89, thereby integrally monitoring the terminal. Processor 810 may include one or more processing units; preferably, the processor 810 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into processor 810.

The terminal 80 may also include a power supply 811 (e.g., a battery) for powering the various components, and preferably, the power supply 811 may be logically coupled to the processor 810 via a power management system to manage charging, discharging, and power consumption management functions via the power management system.

In addition, the terminal 80 includes some functional modules that are not shown, and are not described in detail herein.

Preferably, an embodiment of the present invention further provides a terminal, including a processor 810, a memory 89, and a computer program stored in the memory 89 and capable of running on the processor 810, where the computer program, when executed by the processor 810, implements each process of the above-mentioned information transmission method embodiment, and can achieve the same technical effect, and in order to avoid repetition, details are not described here again. A terminal may be a wireless terminal or a wired terminal, and a wireless terminal may be a device providing voice and/or other service data connectivity to a user, a handheld device having a wireless connection function, or other processing devices connected to a wireless modem. A wireless terminal, which may be a mobile terminal such as a mobile telephone (or "cellular" telephone) and a computer having a mobile terminal, e.g., a portable, pocket, hand-held, computer-included, or vehicle-mounted mobile device, may communicate with one or more core networks via a Radio Access Network (RAN), and may exchange language and/or data with the RAN. For example, devices such as Personal Communication Service (PCS) phones, cordless phones, Session Initiation Protocol (SIP) phones, Wireless Local Loop (WLL) stations, and Personal Digital Assistants (PDAs) are used. A wireless Terminal may also be referred to as a system, a Subscriber Unit (Subscriber Unit), a Subscriber Station (Subscriber Station), a Mobile Station (Mobile), a Remote Station (Remote Station), a Remote Terminal (Remote Terminal), an access Terminal (access Terminal), a User Terminal (User Terminal), a User Agent (User Agent), and a User Equipment (User device User Equipment), which are not limited herein.

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

The above embodiment describes the information transmission method of the present invention from the terminal side, and the following embodiment further describes the information transmission method of the network device side with reference to the drawings.

As shown in fig. 9, the information transmission method according to the embodiment of the present invention is applied to a network device side, and includes the following steps:

step 91: when the early indication signal is quasi co-located with the target signal, at least one of the following information is sent to the terminal: the system comprises system information, a Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) control unit (CE) and Downlink Control Information (DCI), wherein the information is used for indicating whether an advance indication signal and a target signal are quasi co-located or not.

Wherein the target signal comprises: a synchronization signal block SSB, a channel state indication reference signal CSI-RS or a signal carried in a physical downlink channel; the physical downlink channel comprises: PDCCH or PDSCH, and signals carried in a physical downlink control channel include: signals carried in the PDCCH, such as PDCCH and DMRS of PDCCH, etc., and signals carried in the PDSCH, such as DMRS of PDSCH and PDSCH, etc. The method is an explicit indication method, taking the target signal as an SSB as an example, and indicating the QCL relationship between the advance indication signal and the SSB corresponding to a certain SSB resource index number through system information, RRC dedicated signaling, MAC-CE, or DCI. Taking the CSI-RS as an example, the QCL relationship between the advanced indication signal and the CSI-RS corresponding to a certain CSI-RS resource index is indicated through system information, RRC dedicated signaling, MAC-CE, or DCI. Taking PO as an example, the QCL relationship between the advance indication signal and PO is indicated by the system information. Taking PDCCH as an example, the QCL relationship between the advanced indication signal and the PDCCH that needs to be monitored in the On duration is indicated through system information, RRC dedicated signaling, MAC-CE or DCI.

The information indicating the quasi-co-location relationship between the advanced indication signal and the target signal further includes indication information indicating a quasi-co-location type, and the quasi-co-location type is used for indicating that at least one of doppler frequency shift, doppler spread, average delay, delay spread and space receiving parameters is quasi-co-location. If the information indicates that the quasi co-location type is QCL-TypeA, the Doppler frequency shift, the Doppler spread, the average time delay and the time delay spread are quasi co-location; if the information indicates that the quasi co-location type is QCL-TypeB, the Doppler frequency shift and the Doppler spread are quasi co-located; if the information indicates that the quasi co-location type is QCL-TypeC, the Doppler frequency offset and the average time delay are quasi co-location; and if the information indicates that the quasi co-location type is QCL-TypeD, the space receiving parameter is quasi co-location. For example, the QCL type may be indicated through RRC dedicated signaling, that is, which parameters are QCL, and if the parameters of Doppler shift, Doppler spread, average delay, and delayspread satisfy QCL, the channel estimation of PDCCH-DMRS may perform channel estimation according to the estimated delay Doppler and other parameters of SSB/WUS of the QCL, so as to reduce estimation complexity.

The network equipment of the embodiment of the invention sends the information indicating the quasi co-location relation of the advance indication signal and the target signal to the terminal when the advance indication signal and the target signal are quasi co-located, so that the terminal directly receives the advance indication signal or the target signal from the network equipment side according to the quasi co-location parameter when determining the quasi co-location of the advance indication signal and the target signal, and does not need to perform complex beam training, thereby ensuring better receiving performance and being beneficial to the power saving of the terminal.

The above embodiments respectively describe in detail the information transmission methods in different scenarios, and the following embodiments further describe the corresponding network devices with reference to the accompanying drawings.

As shown in fig. 10, the network device 1000 according to the embodiment of the present invention can implement that when the early indication signal is quasi co-located with the target signal in the foregoing embodiment, at least one of the following information is sent to the terminal: the network device 1000 specifically includes the following functional modules:

a sending module 1010, configured to send, to the terminal, at least one of the following information when the early indication signal is quasi co-located with the target signal: the system comprises system information, a Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) control unit (CE) and Downlink Control Information (DCI), wherein the information is used for indicating whether an advance indication signal and a target signal are quasi co-located or not.

Wherein the target signal comprises: a synchronization signal block SSB, a channel state indication reference signal CSI-RS, or a signal carried in a physical downlink channel.

It should be noted that the division of the modules of the network device and the terminal is only a logical division, and the actual implementation may be wholly or partially integrated into one physical entity, or may be physically separated. And these modules can be realized in the form of software called by processing element; or may be implemented entirely in hardware; and part of the modules can be realized in the form of calling software by the processing element, and part of the modules can be realized in the form of hardware. For example, the determining module may be a processing element separately set up, or may be implemented by being integrated in a chip of the apparatus, or may be stored in a memory of the apparatus in the form of program code, and the function of the determining module is called and executed by a processing element of the apparatus. Other modules are implemented similarly. In addition, all or part of the modules can be integrated together or can be independently realized. The processing element described herein may be an integrated circuit having signal processing capabilities. In implementation, each step of the above method or each module above may be implemented by an integrated logic circuit of hardware in a processor element or an instruction in the form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above methods, such as: one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors (DSPs), or one or more Field Programmable Gate Arrays (FPGAs), among others. For another example, when one of the above modules is implemented in the form of a Processing element scheduler code, the Processing element may be a general-purpose processor, such as a Central Processing Unit (CPU) or other processor capable of calling program code. For another example, these modules may be integrated together and implemented in the form of a system-on-a-chip (SOC).

It is worth pointing out that, when the advanced indication signal and the target signal are quasi co-located, the network device in the embodiment of the present invention sends information indicating the quasi co-located relationship between the advanced indication signal and the target signal to the terminal, so that the terminal directly receives the advanced indication signal or the target signal from the network device side according to the quasi co-located parameter when determining the quasi co-located, without performing complicated beam training, which can ensure better receiving performance and is beneficial to saving power of the terminal.

In order to better achieve the above object, an embodiment of the present invention further provides a network device, which includes a processor, a memory, and a computer program stored in the memory and running on the processor, and when the processor executes the computer program, the steps in the information transmission method described above are implemented. Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps of the information transmission method as described above.

Specifically, the embodiment of the invention also provides a network device. As shown in fig. 11, the network device 1100 includes: antenna 111, radio frequency device 112, baseband device 113. The antenna 111 is connected to a radio frequency device 112. In the uplink direction, the rf device 112 receives information through the antenna 111 and sends the received information to the baseband device 113 for processing. In the downlink direction, the baseband device 113 processes information to be transmitted and transmits the information to the rf device 112, and the rf device 112 processes the received information and transmits the processed information through the antenna 111.

The above-mentioned band processing means may be located in the baseband device 113, and the method performed by the network device in the above embodiment may be implemented in the baseband device 113, where the baseband device 113 includes the processor 114 and the memory 115.

The baseband device 113 may include at least one baseband board, for example, and a plurality of chips are disposed on the baseband board, as shown in fig. 11, wherein one chip, for example, the processor 114, is connected to the memory 115 to call the program in the memory 115 to perform the network device operation shown in the above method embodiment.

The baseband device 113 may further include a network interface 116, for exchanging information with the radio frequency device 112, for example, a Common Public Radio Interface (CPRI).

The processor may be a single processor or a combination of multiple processing elements, for example, the processor may be a CPU, an ASIC, or one or more integrated circuits configured to implement the methods performed by the network devices, for example: one or more microprocessors DSP, or one or more field programmable gate arrays FPGA, or the like. The storage element may be a memory or a combination of a plurality of storage elements.

Memory 115 may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. The volatile Memory may be a Random Access Memory (RAM) which serves as an external cache. By way of example, and not limitation, many forms of RAM are available, such as static random access memory (static RAM, SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double data rate SDRAM (ddr DRAM), Enhanced SDRAM (ESDRAM), SLDRAM (SLDRAM), and Direct Rambus RAM (DRRAM). The memory 115 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Specifically, the network device of the embodiment of the present invention further includes: a computer program stored in the memory 115 and operable on the processor 114, the processor 114 calling the computer program in the memory 115 to execute the method performed by each module shown in fig. 10.

In particular, the computer program, when invoked by the processor 114, is operable to perform: when the early indication signal is quasi co-located with the target signal, at least one of the following information is sent to the terminal: the system comprises system information, a Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) control unit (CE) and Downlink Control Information (DCI), wherein the information is used for indicating whether an advance indication signal and a target signal are quasi co-located or not.

The network device may be a Base Transceiver Station (BTS) in Global System for mobile communications (GSM) or Code Division Multiple Access (CDMA), a Base Station (NodeB, NB) in Wideband Code Division Multiple Access (WCDMA), an evolved Node B (eNB, eNodeB) in LTE, a relay Station, an Access point, a Base Station in a future 5G network, or the like, which is not limited herein.

The network equipment in the embodiment of the invention sends the information indicating the quasi co-location relation between the advanced indication signal and the target signal to the terminal when the advanced indication signal and the target signal are quasi co-located, so that the terminal directly receives the advanced indication signal or the target signal from the network equipment side according to the quasi co-location parameter when determining the quasi co-location of the advanced indication signal and the target signal, and does not need to perform complex beam training, thereby ensuring better receiving performance and being beneficial to the power saving of the terminal.

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

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

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

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

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

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

Furthermore, it is to be noted that in the device and method of the invention, it is obvious that the individual components or steps can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of performing the series of processes described above may naturally be performed chronologically in the order described, but need not necessarily be performed chronologically, and some steps may be performed in parallel or independently of each other. It will be understood by those skilled in the art that all or any of the steps or elements of the method and apparatus of the present invention may be implemented in any computing device (including processors, storage media, etc.) or network of computing devices, in hardware, firmware, software, or any combination thereof, which can be implemented by those skilled in the art using their basic programming skills after reading the description of the present invention.

Thus, the objects of the invention may also be achieved by running a program or a set of programs on any computing device. The computing device may be a general purpose device as is well known. The object of the invention is thus also achieved solely by providing a program product comprising program code for implementing the method or the apparatus. That is, such a program product also constitutes the present invention, and a storage medium storing such a program product also constitutes the present invention. It is to be understood that the storage medium may be any known storage medium or any storage medium developed in the future. It is further noted that in the apparatus and method of the present invention, it is apparent that each component or step can be decomposed and/or recombined. These decompositions and/or recombinations are to be regarded as equivalents of the present invention. Also, the steps of executing the series of processes described above may naturally be executed chronologically in the order described, but need not necessarily be executed chronologically. Some steps may be performed in parallel or independently of each other.

While the preferred embodiments of the present invention have been described, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the following claims.

Claims

1. An information transmission method applied to a terminal side, comprising:

if the advanced indication signal and the target signal are quasi co-located, receiving the advanced indication signal or the target signal from a network equipment side according to quasi co-located parameters;

the step of determining the quasi-co-location relationship between the early indication signal and the target signal comprises the following steps:

determining a quasi co-location relationship between the advanced indication signal and the target signal according to a relationship between a first transmission resource and a second transmission resource; wherein the first transmission resource is used for transmitting the early indication signal, and the second transmission resource is used for transmitting the target signal;

the step of determining the quasi-co-location relationship between the early indication signal and the target signal according to the relationship between the first transmission resource and the second transmission resource comprises:

when a preset time interval is arranged between the first transmission resource and the second transmission resource, determining that the advance indication signal and the target signal are quasi co-located;

alternatively, the first and second electrodes may be,

when the frequency interval between the first transmission resource and the second transmission resource is smaller than a preset threshold value, determining that the advance indication signal and the target signal are quasi co-located.

2. The information transmission method according to claim 1, wherein the step of determining the quasi-co-location relationship between the early indication signal and the target signal comprises:

receiving at least one of the following information from the network device side: system information, Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) layer control unit (CE) and Downlink Control Information (DCI);

and determining the quasi-co-location relation between the advanced indication signal and the target signal according to the indication of the information.

3. The information transmission method according to claim 2, wherein the information further includes indication information for indicating a quasi co-location type for indicating that at least one of doppler frequency shift, doppler spread, average delay, delay spread, and spatial reception parameters is quasi co-located.

4. The information transmission method according to claim 1, wherein the step of determining that the advance indication signal is quasi co-located with the target signal when a preset time interval is left between the first transmission resource and the second transmission resource comprises:

when the first transmission resource is located in an Nth time window before or after the second transmission resource, determining that the early indication signal is quasi-co-located with the target signal, wherein N is a positive integer.

5. The information transmission method according to claim 1, wherein the step of receiving the advance indication signal or the target signal from a network device side according to a quasi co-location parameter comprises:

receiving the target signal from the network equipment side according to the quasi co-location parameter of the advanced indication signal; alternatively, the first and second electrodes may be,

and receiving the advanced indication signal from the network equipment side according to the quasi co-location parameter of the target signal.

6. The information transmission method according to any one of claims 1 to 5, wherein the target signal includes: the synchronization signal block SSB or the channel state indication reference signal CSI-RS.

7. The information transmission method according to claim 1, wherein the target signal further includes: a step of receiving the advanced indication signal or the target signal from a network device side according to a quasi co-location parameter, wherein the signal carried in a physical downlink channel includes:

and receiving a signal carried in a physical downlink channel from the network equipment side according to the quasi co-location parameter of the advanced indication signal.

8. A terminal, comprising:

a receiving module, configured to receive the early indication signal or the target signal from a network device side according to a quasi co-location parameter if the early indication signal and the target signal are quasi co-located;

the determining module further comprises:

the second determining submodule is used for determining the quasi-co-location relation between the advanced indication signal and the target signal according to the relation between the first transmission resource and the second transmission resource; the first transmission resource is used for transmitting the early indication signal, and the second transmission resource is used for transmitting the target signal;

the second determination submodule includes:

alternatively, the first and second electrodes may be,

a second determining unit, configured to determine that the early indication signal is quasi co-located with the target signal when a frequency interval between the first transmission resource and the second transmission resource is smaller than a preset threshold.

9. The terminal of claim 8, wherein the determining module comprises:

a first receiving submodule, configured to receive, from the network device side, at least one of the following information: system information, Radio Resource Control (RRC) dedicated signaling, a Media Access Control (MAC) layer control unit (CE) and Downlink Control Information (DCI);

and the first determining submodule is used for determining the quasi-co-location relation between the advance indication signal and the target signal according to the indication of the information.

10. The terminal of claim 9, wherein the information further comprises indication information indicating a quasi co-location type, wherein the quasi co-location type is used to indicate that at least one of doppler frequency offset, doppler spread, average delay, delay spread, and spatial reception parameters is quasi co-located.

11. The terminal according to claim 8, wherein the first determining unit comprises:

a determining subunit, configured to determine that the advance indication signal is quasi co-located with the target signal when the first transmission resource is located within an nth time window before or after the second transmission resource, where N is a positive integer.

12. The terminal of claim 8, wherein the receiving module further comprises:

a second receiving submodule, configured to receive the target signal from the network device side according to a quasi co-location parameter of the advanced indication signal; alternatively, the first and second electrodes may be,

13. The terminal according to any of claims 8 to 12, wherein the target signal comprises: the synchronization signal block SSB or the channel state indication reference signal CSI-RS.

14. The terminal of claim 8, wherein the target signal further comprises: the receiving module further includes:

and a fourth receiving submodule, configured to receive, from the network device side, a signal carried in a physical downlink channel according to the quasi co-location parameter of the advanced indication signal.

15. A terminal, characterized in that the terminal comprises a processor, a memory and a computer program stored on the memory and executable on the processor, the computer program, when executed by the processor, implementing the steps of the information transmission method according to any one of claims 1 to 7.

16. A computer-readable storage medium, characterized in that a computer program is stored thereon, which computer program, when being executed by a processor, carries out the steps of the information transmission method according to one of claims 1 to 7.