WO2019179317A1

WO2019179317A1 - Information transmission method, terminal and network device

Info

Publication number: WO2019179317A1
Application number: PCT/CN2019/077420
Authority: WO
Inventors: 吴凯; 姜大洁
Original assignee: 维沃移动通信有限公司
Priority date: 2018-03-23
Filing date: 2019-03-08
Publication date: 2019-09-26
Also published as: CN110300444A; CN110300444B

Abstract

Disclosed are an information transmission method, a terminal and a network device. The method comprises: receiving an advanced indication signal from a network device side; determining the first X target beams with the best quality in at least two beams associated with the advanced indication signal according to the advanced indication signal, wherein X is an integer greater than or equal to 1; and transmitting identification information of the target beams to the network device.

Description

Information transmission method, terminal and network device

Cross-reference to related applications

The present application claims priority to Chinese Patent Application No. 20181024, 448, filed on Jan. 23, s.

Technical field

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

Background technique

In the fourth generation (4 ^th Generation, 4G) and fifth generation (5 ^th Generation, 5G) communication system, discontinuous reception (Discontinuous Reception, DRX) scenario, wherein the basic mechanism of DRX is: in the wireless The terminal in the state of the Radio Resource Control connected (RRC_connected) is configured with a DRX cycle. As shown in FIG. 1, FIG. 1 shows a time domain diagram of the DRX cycle, which includes an On Duration. During the active period, the terminal monitors and receives the PDCCH. During the sleep period, the terminal does not receive data of the downlink channel to save power. In most cases, when a terminal is scheduled and receives or transmits data in a certain subframe, it is likely to continue to be scheduled in the next few subframes. If it waits until the next DRX cycle to receive or transmit, the data is received. Will bring additional delay. In order to reduce such delays, the terminal will remain in the active period after being scheduled. Specifically, when the terminal is scheduled to transmit data, a timer is started or restarted, and the terminal is always in an active period during the timeout period of the timer.

In order to further reduce the power consumption of the blind detection paging (Paging) signal or the physical downlink control channel (PDCCH) in the DRX scenario, a wake-up signal (WUS-Up Signal, WUS) and a sleep signal (Go) are proposed. The concept of To Sleep Signal (GTS), detecting WUS or GTS is less complex and more power efficient than blind detection of the paging signal or PDCCH. In a 5G system, or a New Radio (NR) system, in order to ensure that the signal transmission between the network device and the terminal is transmitted on a beam of better quality, the network device and the terminal need to transmit and receive signals through the signal. The control signal is sent and received to maintain the optimal beam, and the terminal does not receive the signal for a long time in the DRX or idle state, so that the next time the reception is turned on, there is a high probability that the terminal and the network device The signal transmission cannot be performed on the optimal beam, thereby affecting the reception performance of the reception start time signal. If you want to ensure better reception performance during the activation period or paging opportunity (Paging Occasion, PO) of DRX, if the terminal wakes up frequently to perform beam training to maintain the optimal transmit and receive beam, the power consumption of the terminal will be higher. It is not conducive to terminal power saving.

Summary of the invention

The embodiments of the present disclosure provide an information transmission method, a terminal, and a network device, to solve the terminal power consumption problem caused by frequent beam training of the terminal in the DRX or idle state.

In a first aspect, an embodiment of the present disclosure provides an information transmission method, which is applied to a terminal side, and includes:

Receiving an advance indication signal from a network device side;

Determining, according to the advance indication signal, a quality-optimized first X target beams of at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

The identification information of the target beam is sent to the network device.

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

a first receiving module, configured to receive an advance indication signal from a network device side;

a determining module, configured to determine, according to the advance indication signal, a top X target beam of the best quality among the at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

The first sending module is configured to send identifier information of the target beam to the network device.

In a third aspect, an embodiment of the present disclosure provides a terminal, where the terminal includes a processor, a memory, and a computer program stored on the memory and operable on the processor, where the computer program is executed by the processor to implement the information transmission method. step.

In a fourth aspect, an embodiment of the present disclosure provides an information transmission method, which is applied to a network device side, and includes:

Sending an advance indication signal to the terminal;

The identification information of the target beam is received from the terminal side; wherein the target beam is the first X of the at least two beams that are determined by the terminal and associated with the advance indication signal, and X is an integer greater than or equal to 1.

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

a second sending module, configured to send an advance indication signal to the terminal;

a third receiving module, configured to receive, by the terminal side, identification information of the target beam, where the target beam is the first X of the at least two beams that are determined by the terminal and associated with the advance indication signal, and the X is greater than or equal to 1 The integer.

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

In a seventh aspect, an embodiment of the present disclosure provides a computer readable storage medium, where a computer program is stored, and the computer program is executed by a processor to implement the steps of the information transmission method.

In this way, the terminal in the embodiment of the present disclosure performs beam training on at least two beams associated with the received advance indication signal to obtain a target beam with the best quality, maintains an optimal beam, and does not need to wake up frequently for beam training. It is conducive to the power saving of the terminal.

DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings to be used in the description of the embodiments of the present disclosure will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present disclosure. Other drawings may also be obtained from those of ordinary skill in the art based on these drawings without the inventive labor.

Figure 1 shows a schematic diagram of a DRX cycle;

Figure 2 shows a time domain diagram of the DRX cycle;

FIG. 3 is a schematic flowchart diagram of an information transmission method on a terminal side according to an embodiment of the present disclosure;

4 is a schematic structural diagram of a module of a terminal according to an embodiment of the present disclosure;

Figure 5 is a block diagram showing a terminal of an embodiment of the present disclosure;

FIG. 6 is a schematic flowchart diagram of an information transmission method on a network device side according to an embodiment of the present disclosure;

FIG. 7 is a block diagram showing the structure of a network device according to an embodiment of the present disclosure;

Figure 8 shows a block diagram of a network device in accordance with an embodiment of the present disclosure.

detailed description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While the embodiments of the present invention have been shown in the drawings, the embodiments Rather, these embodiments are provided so that this disclosure will be more fully understood and the scope of the disclosure will be fully disclosed.

The terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and are not necessarily used to describe a particular order or order. It is to be understood that the data so used may be interchanged where appropriate, such that the embodiments of the present application described herein can be implemented, for example, in a sequence other than those illustrated or described herein. In addition, the terms "comprises" and "comprises" and "the" and "the" are intended to cover a non-exclusive inclusion, for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to Those steps or units may include other steps or units not explicitly listed or inherent to such processes, methods, products or devices. "An item of A, B, and C" and "A, B, or C" are intended to include any of A, B, and C.

The terminal in the radio resource control idle state (RRC_idle) of the 4G and 5G communication systems needs to detect the paging signal sent by the network device at a pre-configured time. The specific paging signal process is as follows: blind Detecting a PDCCH corresponding to a Paging Radio Network Temporary Identity (P-RNTI), if the PDCCH is not detected, ending the current detection; if detecting the PDCCH, detecting the physical downlink indicated by the PDCCH The physical downlink link (Physical Downlink Share Channel, PDSCH) ends the detection if the detected PDSCH is not the paging signal of the terminal. Otherwise, the detected PDSCH is the paging signal of the terminal. In the RRC_idle state, the terminal periodically detects the paging signal, and the power consumption of detecting the PDCCH or the PDSCH is large each time, but the probability of detecting the paging signal belonging to itself is low, which is disadvantageous for the terminal to save power. The 4G and 5G systems are exemplified in the above description, and those skilled in the art can understand that the embodiments of the present disclosure are not limited to a specific communication system.

In the DRX scenario, the basic mechanism of the DRX is to configure a DRX cycle for the terminal in the RRC_connected state, including an activation period and a sleep period. During the activation period, the terminal monitors and receives the PDCCH during sleep. During the period, the terminal does not receive data of the downlink channel to save power consumption. That is to say, in the time domain, time is divided into consecutive DRX cycles. The DRX start offset (drxStartOffset) is used to indicate the start subframe of the DRX cycle, and the long DRX-Cycle is used to indicate how many subframes the long DRX cycle occupies. Among them, these two parameters are determined by the longDRX-CycleStartOffset field. The On Duration Timer specifies the number of consecutive subframes that need to be monitored from the starting subframe of the DRX cycle (ie, the number of subframes in which the active period lasts).

In most cases, when a terminal is scheduled and receives or transmits data in a certain subframe, it is likely to continue to be scheduled in the next few subframes. If it waits until the next DRX cycle to receive or transmit, the data is received. Will bring additional delay. In order to reduce such delay, the terminal will continue to be in the active period after being scheduled, that is, the PDCCH will be continuously monitored during the configured activation period. Specifically, when the terminal is scheduled to transmit data, a deactivation timer (drx-InactivityTimer) is started or restarted, and the terminal is always in an active period during the period when the timer is not timed out. The drx-inactivityTimer specifies the number of consecutive subframes that continue to be in the active state after the terminal successfully decodes a PDCCH indicating the initial uplink (UL) or downlink (DL) user data. That is, whenever the terminal has initial data to be scheduled, the timer is restarted once.

In order to further save the power consumption of the blind detection Paging signal or PDCCH in the DRX scenario, the concepts of WUS and GTS are proposed, wherein WUS and GTS are collectively referred to as an advance indication signal. The network device first transmits a WUS to the terminal, and the terminal at the corresponding moment, before the terminal detects the paging signal or the PDCCH in the LDP connected state or the RRC connected state (DRX OFF). Wake up to detect the WUS. If the terminal detects the WUS, the terminal blindly detects the Paging signal or the 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 the WUS for the terminal, the terminal can detect the WUS on the physical channel. If the WUS is detected, it is determined that the PDCCH detection needs to be performed in the next DRX cycle. If the WUS is not detected, the next determination is made. The PDCCH detection is not required in the DRX cycle, and the sleep state is continued. Alternatively, in each DRX cycle of the idle state or the RRC connected state, before the terminal blindly detects the paging signal or the PDCCH, the network device may further transmit a GTS to the terminal, and the terminal wakes up to detect the GTS at the corresponding moment. 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 complicated and more power-efficient than blind detection of Paging signal or PDCCH.

Further, the design of the current advance indication signal (including WUS or GTS) includes the following: OOK (on-off keying), sequence (with or without DTX), channel-encoded payload (such as PDCCH, etc.), sequence + Load (if the receive sequence completes synchronization, then receives the payload in sync).

For example, taking the sequence as an example, the advance indication signal may be discontinuous transmission (with DTX) or no discontinuous transmission (without DTX). Taking with DTX as an example: when the advance indication signal carries the WUS sequence, if the terminal detects the WUS sequence, it is determined that PDCCH detection needs to be performed in the next DRX cycle, and if the WUS sequence is not detected, it is determined to be in the next DRX cycle. There is no need to perform PDCCH. Similarly, when the GTS sequence is carried by the indication signal, if the GTS sequence is not detected, it is determined that the PDCCH detection needs to be performed in the next DRX cycle, and if the GTS sequence is detected, it is determined that the PDCCH detection is not required in the next DRX cycle. . For example, when the WUS sequence is in the first sequence format, it is determined that the corresponding PDCCH needs to be detected in the next DRX cycle, and if the WUS is detected as the second 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. Similarly, when the GTS sequence is in 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. If the GTS is detected as the fourth sequence format, the next one is determined. The corresponding PDCCH does not need to be detected in the DRX cycle, and the terminal continues to sleep.

An embodiment of the present disclosure provides an information transmission method, which is applied to a terminal side. As shown in FIG. 3, the method includes the following steps:

Step 31: Receive an advance indication signal from the network device side.

The advance indication signal includes at least one of a wakeup signal WUS and a sleep signal GTS. The network device configures corresponding transmission resources for the advance indication signal, and the transmission resources may correspond to at least one transmission beam of the network device.

Step 32: Determine, according to the advance indication signal, the first X target beams of the best quality among the at least two beams associated with the advance indication signal.

Where X is an integer greater than or equal to 1. That is to say, the terminal determines more than one target beam according to the advance indication signal, and may also be multiple. When the transmission resource of the advance indication signal corresponds to one beam, if the advance indication signal triggers the transmission of other signals, the network device configures transmission resources on at least two beams for other signals, or when the transmission resources of the advance indication signal itself correspond to at least two In the case of the beams, it is determined that the advance indication signal is associated with the at least two beams. The terminal determines the target beam with the best channel quality among the at least two beams according to the received signal quality by receiving signals on at least two beams. In this way, the terminal can perform beam training on at least two beams without frequent wake-up, and obtain a target beam with optimal quality, which is beneficial to power saving of the terminal.

Step 33: Send identification information of the target beam to the network device.

The identifier information includes: the number information of the time-frequency resource corresponding to the target beam, and may include: a WUS/GTS resource number (or an index number) that receives the best signal quality, and/or a CSI that receives the best signal quality. -RS resource number (or index number). In order to ensure that the network device always uses the best-quality transmit beam for signal transmission, the terminal sends the identified target beam identification signal to the network device to improve the reliability of the transmission. It is to be noted that when the number of target beams determined by the terminal is more than one, the terminal needs to report the identification information of the plurality of target beams to the network device.

A method for performing beam training according to an advance indication signal, that is, a preferred implementation manner of step 32, will be described below with reference to a specific example:

Manner 1: If the advance indication signal triggers the transmission of a Channel State Information Reference Signal (CSI-RS), the CSI-RS is received from the network device side, and the received CSI-RS is measured to determine at least two The top X target beams with the best quality among the beams. The CSI-RS is sent by the network device through at least two beams. That is, if the advance indication signal triggers the transmission of the CSI-RS, the network device configures the first target time-frequency resource on the at least two beams. Then, the terminal receives the CSI-RS from the network device side by using the first target time-frequency resource, where the first target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS. Each beam referred to herein corresponds to at least one CSI-RS, which means that each transmission resource may include multiple CSI-RSs and transmit using the same beam.

Taking WUS as an example, if the WUS triggers the transmission of the CSI-RS, the CSI-RS uses different (at least two) beams to transmit on different time-frequency resources, and each used beam also performs on multiple time-frequency resources. Multiple CSI-RS transmissions, each group using the same beam CSI-RS corresponding to the same resource number (or beam number). For the C-DRX in the downlink connected state, if the WUS triggers the PDCCH/PDSCH reception, the CSI-RS transmission is triggered, and the network device uses the N resources to perform the CSI-RS transmission, that is, the N beams are used for transmission. The beams correspond to a resource number n, 1 ≤ n ≤ N. The transmission resources corresponding to each resource number may further include M CSI-RSs, that is, the M CSI-RSs are transmitted using the same beam.

Preferably, when the indication signal triggers the sending of the CSI-RS, the step of the terminal receiving the CSI-RS from the network device side further includes: performing, according to the CSI-RS, a channel quality indicator (CQI), a precoding matrix indication At least one of (Precoding Matrix Indicator, PMI), Rank Indication (RI), and Level 1 (L1) Reference Signal Receiving Power (RSRP) is measured and reported. One of the layers may also be referred to as a physical layer.

Taking the L1-PSRP measurement as an example, the terminal receives the CSI-RS sent by the network device, performs L1-RSRP measurement on the CSI-RS of different resources, determines the optimal beam, and reports the resource number information to the PO/On duration. Internet equipment. It is worth noting that the terminal can also perform CQI/PMI/RI measurement based on the CSI-RS and report it.

Manner 2: Receive an advance indication signal from the network device side by using the second target time-frequency resource, measure the received advance indication signal, and determine the first X target beams with the best quality among the at least two beams. The second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one advance indication signal. That is, the network device configures the second target time-frequency resource on the at least two beams for the advance indication signal. Then, the terminal receives the advance indication signal from the network device side by using the second target time-frequency resource, where the second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS. Each beam referred to herein corresponds to at least one advance indication signal, which means that each transmission resource may include multiple advance indication signals for transmission using the same beam.

Taking WUS as an example, WUS uses different (at least two) beams to transmit on different time-frequency resources. Each used beam also performs multiple WUS transmissions on multiple time-frequency resources, where WUS corresponding to the same beam is used. An identical resource number (or beam number). For the downlink connected C-DRX, the network device uses N beams to transmit WUS, and each beam corresponds to a resource number n, 1≤n≤N. The transmission resources corresponding to each resource number may further include M WUSs, that is, the M WUSs are transmitted using the same beam.

The method for measuring the received advance indication signal and determining the best-quality target beam of the at least two beams may perform L1-RSRP measurement by using an advance indication signal on different beams to determine an optimal beam. Taking the WUS as an example, the terminal receives the WUS sent by the network device, performs L1-RSRP measurement on the WUS of different beams, determines the optimal beam, and reports the resource number information corresponding to the optimal beam to the network before the PO/On duration. device.

The third mode, the combination of the first mode and the second mode, that is, if the network device sends the advance indication signal by using at least two beams, and the early indication signal triggers the sending of the CSI-RS, the network device further sends the CSI by using at least two beams. -RS. At this time, the terminal may perform beam training according to the joint received early indication signal and the CSI-RS to determine the top X target beams with the best quality. The specific beam training mode can be implemented by referring to mode 1 and mode 2. The training result is combined with the advance indication signal and the beam training result of the CSI-RS to finally determine the target beam with the best quality.

In order to further improve the accuracy of the beam training, when the advance indication signal is transmitted as a physical signal, and between the advance indication signal and the triggered CSI-RS is Quasi Co-Location (QCL), preferably, each An advance indication signal is transmitted by using the same beam as the CSI-RS triggered by the same, and the terminal may perform joint measurement based on the advance indication signal and the corresponding CSI-RS to determine the target beam with the best quality, and the resource number or beam of the target beam. The number is reported to the network device.

The preferred implementation of step 32 is described above, and the preferred implementation of step 33 will be further described in the following embodiment.

Step 33 includes: transmitting, by using a preset manner, identifier information of the target beam to the network device. The preset manner includes: a preamble code, a time-frequency domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical uplink shared channel PUSCH. . Taking the identifier information as the WUS resource number as an example, the WUS resource number reported by the terminal may be indicated by a preamble code, such as different preamble sequences representing different WUS resource numbers, for example, different root sequences or cyclic shift values used by the preamble code. Differentiate different WUS resource numbers. Alternatively, the WUS resource number reported by the terminal may be implicitly indicated by the frequency domain resource where the preamble code is located. For example, different preamble frequency domain resources represent different WUS resource numbers. Alternatively, when in the connected state, the terminal may transmit the uplink control information with the best quality WUS resource number through the PUCCH or the PUSCH. For example, the CSI-RS resource number reported by the terminal may be indicated by a preamble code, for example, different preamble sequences represent different CSI-RS resource numbers, for example, different root sequences used by the preamble code. Or cyclic shift values to distinguish between different CSI-RS resource numbers. Alternatively, the CSI-RS resource number reported by the terminal may be implicitly indicated by the frequency domain resource where the preamble code is located, for example, different preamble frequency domain resources represent different CSI-RS resource numbers. Alternatively, when in the connected state, the terminal may transmit, by using the PUCCH or the PUSCH, the uplink control information to feed back the CSI-RS resource number with the best quality.

The method for reporting the identification information of the target beam is reported in the following. The following embodiment will further describe the timing of reporting the identification information of the target beam. Step 33 includes one of the following:

The identification information of the target beam is transmitted to the network device by transmitting the Mth time domain transmission resource after the indication signal in advance. The method is a predefined reporting occasion, and the reporting time of the identification information is time offset T1 (T1=M-1) time domain transmission units (such as OFDM symbol, slot slot, subframe suframe) after the advance indication signal (such as WUS). , frame frame, etc.). For example, the identification information is reported on the 10th suframe after the advance indication signal. The value of M may be determined according to the identifier information (UE ID) of the terminal. For example, the value of M may be mod (UE ID, 10) slots.

Alternatively, the identification information of the target beam is sent to the network device by the paging opportunity PO or the Nth time domain transmission resource before the activation period of the discontinuous reception DRX cycle. The mode is also a pre-defined reporting time, and the time difference of the identification information reporting time before the PO or On duration is T2 (T2=N-1) time domain transmission units, for example, the identification information is 10th before the PO or On duration. Reported on the slot. The value of N may be determined according to the identifier information (UE ID) of the terminal, for example, the value of N may be mod (UE ID, 10) slots.

Or the identifier information of the target beam is sent to the network device by using the transmission resource indicated by the preset information, where the preset information includes at least one of radio resource control RRC information, system information, and downlink control information DCI. The mode is dynamically configured, and the reporting time of the identification information is configured by using RRC information or system information. For example, the indication is performed in units of offset values of the time domain transmission unit with respect to the advance indication signal or PO/On duration. If the advance indication signal is sent in the format of the control channel, the reported time-frequency resource information may be sent through the DCI carried by the PDCCH. The offset value of the time domain transmission unit relative to the WUS or PO/On duration is reported by the DCI indication information.

In a preferred embodiment, after step 33, the method further includes: receiving, by the network device, a physical downlink channel that is sent by one of the target beams indicated by the identifier information. The physical downlink channel includes: PDCCH and/or PDSCH. That is, the network device performs PDCCH/PDSCH transmission by using the target beam corresponding to the WUS resource number indicated by the identifier information. Alternatively, the network device performs PDCCH/PDSCH transmission using the target beam corresponding to the CSI-RS resource number indicated by the identification information. The network device sends, according to the identifier information reported by the terminal, the PDCCH/PDSCH, that is, the PDCCH/PDSCH and the reported WUS/GTS and/or the indication information indicated by the PDCCH/PDSCH and the reported identifier information, to the terminal and the target beam corresponding to the identifier information. At least some parameters of the CSI-RS are QCL, wherein the foregoing parameters include: Spatial Rx parameter, delay spread, average delay, Doppler frequency offset (Doppler) Shift) and Doppler spread.

Preferably, the terminal receives the PDCCH/PDSCH at the time of PO and On duration, assuming that at least part of the parameters of the PDCCH/PDSCH and the CSI-RS or the advance indication signal are QCL. If the terminal determines that the PDCCH/PDSCH and the previously received advance indication signal are quasi-co-located, the terminal may directly receive the optimal received beam corresponding to the advance indication signal. If the terminal determines that the PDCCH/PDSCH and the previously received CSI-RS are quasi-co-located, the terminal may directly receive the best received beam corresponding to the CSI-RS.

In the information transmission method of the embodiment of the present disclosure, the terminal performs beam training on at least two beams associated with the received advance indication signal to obtain a target beam with the best quality, maintains an optimal beam, and does not need to wake up frequently. Beam training is beneficial to save power in the terminal.

The above embodiment describes the information transmission method in different scenarios. The terminal corresponding thereto will be further introduced in the following with reference to the accompanying drawings.

As shown in FIG. 4, the terminal 400 of the embodiment of the present disclosure can implement the foregoing, in the foregoing embodiment, receiving an advance indication signal from a network device side, and determining, according to the advance indication signal, an optimal quality among at least two beams associated with the advance indication signal. The target beam; the details of the method for transmitting the identification information of the target beam to the network device, and achieving the same effect, the terminal 400 specifically includes the following functional modules:

The first receiving module 410 is configured to receive an advance indication signal from the network device side;

The determining module 420 is configured to determine, according to the advance indication signal, the first X target beams of the best quality among the at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

The first sending module 430 is configured to send identifier information of the target beam to the network device.

The determining module 420 includes:

a first receiving submodule, configured to: when the advance indication signal triggers transmission of the channel state indication reference signal CSI-RS, receive a CSI-RS from a network device side, where the CSI-RS is sent by the network device by using at least two beams;

And a first determining submodule, configured to measure the received CSI-RS, and determine a top X target beam with the best quality among the at least two beams.

The first receiving submodule includes:

The first receiving unit is configured to receive, by using the first target time-frequency resource, a CSI-RS from the network device side, where the first target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS.

The terminal 400 further includes:

And a measuring module, configured to measure and report at least one of a channel quality indicator CQI, a precoding matrix indicator PMI, a rank indicator RI, and a reference signal received power RSRP of the layer one according to the CSI-RS.

The first receiving module 410 includes:

a second receiving submodule, configured to receive an advance indication signal from a network device side by using a second target time-frequency resource, where the second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one advance indication signal;

The determining module 420 further includes:

And a second determining submodule, configured to measure the received advance indication signal, and determine a top X target beam with the best quality among the at least two beams.

The identifier information includes: number information of a time-frequency resource corresponding to the target beam.

The first sending module 430 includes:

The first sending sub-module is configured to send the identifier information of the target beam to the network device in a preset manner, where the preset manner includes: a preamble preamble code, a time-frequency domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical uplink sharing. Channel PUSCH.

The first sending module 430 further includes:

a second sending submodule, configured to send the identifier information of the target beam to the network device by using the Mth time domain transmission resource after the indication signal in advance;

or,

a third sending submodule, configured to send the identifier information of the target beam to the network device by using the paging opportunity PO or the Nth time domain transmission resource before the activation period of the discontinuous reception DRX cycle;

or,

And a fourth sending submodule, configured to send the identifier information of the target beam to the network device by using the transmission resource indicated by the preset information, where the preset information includes: at least radio resource control RRC information, system information, and downlink control information DCI One.

The value of M or N is determined according to the identification information of the terminal.

The terminal 400 further includes:

And a second receiving module, configured to receive, by the network device, the physical downlink channel that is sent by one of target beams indicated by the identifier information.

It is to be noted that the terminal of the embodiment of the present disclosure performs beam training on at least two beams associated with the received indication signal to obtain an optimal beam of the target beam, maintains an optimal beam, and does not need to wake up frequently. Beam training is beneficial to save power in the terminal.

In order to achieve the above objectives, FIG. 5 is a schematic diagram of a hardware structure of a terminal that implements various embodiments of the present disclosure, including but not limited to: a radio frequency unit 51, a network module 52, and an audio output unit 53, The input unit 54, the sensor 55, the display unit 56, the user input unit 57, the interface unit 58, the memory 59, the processor 510, and the power source 511 and the like. It will be understood by those skilled in the art that the terminal structure shown in FIG. 5 does not constitute a limitation of the terminal, and the terminal may include more or less components than those illustrated, or combine some components, or different component arrangements. In the embodiments of the present disclosure, the terminal includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palmtop computer, an in-vehicle terminal, a wearable device, and a pedometer.

The radio frequency unit 51 is configured to receive an advance indication signal from the network device side.

The processor 510 is configured to determine, according to the advance indication signal, the first X target beams of the best quality among the at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

The radio frequency unit 51 is further configured to send the identifier information of the target beam to the network device.

The terminal of the embodiment of the present disclosure performs beam training on at least two beams associated with the received advance indication signal to obtain an optimal beam of the target beam, maintains an optimal beam, and does not need to wake up frequently for beam training. Conducive to the power saving of the terminal.

It should be understood that, in the embodiment of the present disclosure, the radio frequency unit 51 can be used for receiving and transmitting signals during and after receiving or transmitting information, and specifically, receiving downlink data from the base station, and then processing the data to the processor 510; The uplink data is sent to the base station. Typically, radio frequency unit 51 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 unit 51 can also communicate with the network and other devices through a wireless communication system.

The terminal provides the user with wireless broadband Internet access through the network module 52, such as helping the user to send and receive emails, browse web pages, and access streaming media.

The audio output unit 53 can convert the audio data received by the radio frequency unit 51 or the network module 52 or stored in the memory 59 into an audio signal and output as sound. Moreover, the audio output unit 53 can also provide audio output (eg, call signal reception sound, message reception sound, etc.) associated with a particular function performed by the terminal 50. The audio output unit 53 includes a speaker, a buzzer, a receiver, and the like.

The input unit 54 is for receiving an audio or video signal. The input unit 54 may include a graphics processing unit (GPU) 541 and a microphone 542 that images an still picture or video obtained by an image capturing device (such as a camera) in a video capturing mode or an image capturing mode. The data is processed. The processed image frame can be displayed on the display unit 56. The image frames processed by the graphics processor 541 may be stored in the memory 59 (or other storage medium) or transmitted via the radio unit 51 or the network module 52. The microphone 542 can receive sound and can process such sound as audio data. The processed audio data can be converted to a format output that can be transmitted to the mobile communication base station via the radio unit 51 in the case of a telephone call mode.

Terminal 50 also includes at least one type of sensor 55, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor and a proximity sensor, wherein the ambient light sensor can adjust the brightness of the display panel 561 according to the brightness of the ambient light, and the proximity sensor can close the display panel 561 and/or when the terminal 50 moves to the ear. Or backlight. As a kind of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in all directions (usually three axes). When it is stationary, it can detect the magnitude and direction of gravity. It can be used to identify the terminal attitude (such as horizontal and vertical screen switching, related games, Magnetometer attitude calibration), vibration recognition related functions (such as pedometer, tapping), etc.; sensor 55 may also include fingerprint sensor, pressure sensor, iris sensor, molecular sensor, gyroscope, barometer, hygrometer, thermometer, infrared Sensors, etc., will not be described here.

The display unit 56 is for displaying information input by the user or information provided to the user. The display unit 56 may include a display panel 561, and the display panel 561 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 57 can be used to receive input numeric or character information and to generate key signal inputs related to user settings and function control of the terminal. Specifically, the user input unit 57 includes a touch panel 571 and other input devices 572. The touch panel 571, also referred to as a touch screen, can collect touch operations on or near the user (such as a user using a finger, a stylus, or the like on the touch panel 571 or near the touch panel 571. operating). The touch panel 571 may include two parts of a touch detection device and a touch controller. Wherein, the touch detection device detects the touch orientation of the user, and detects a signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts the touch information into contact coordinates, and sends the touch information. The processor 510 receives the commands from the processor 510 and executes them. In addition, the touch panel 571 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic waves. In addition to the touch panel 571, the user input unit 57 may also include other input devices 572. Specifically, other input devices 572 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, switch buttons, etc.), trackballs, mice, and joysticks, and are not described herein again.

Further, the touch panel 571 can be overlaid on the display panel 561. When the touch panel 571 detects a touch operation on or near the touch panel 571, it is transmitted to the processor 510 to determine the type of the touch event, and then the processor 510 according to the touch. The type of event provides a corresponding visual output on display panel 561. Although in FIG. 5, the touch panel 571 and the display panel 561 are two independent components to implement the input and output functions of the terminal, in some embodiments, the touch panel 571 may be integrated with the display panel 561. The input and output functions of the terminal are implemented, and are not limited herein.

The interface unit 58 is an interface in which an external device is connected to the terminal 50. For example, the external device may include a wired or wireless headset port, an external power (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, and an audio input/output. (I/O) port, video I/O port, headphone port, and more. Interface unit 58 may be operable to receive input from an external device (eg, data information, power, etc.) and transmit the received input to one or more components within terminal 50 or may be used at terminal 50 and external devices Transfer data between.

Memory 59 can be used to store software programs as well as various data. The memory 59 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application 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 be stored according to Data created by the use of the mobile phone (such as audio data, phone book, etc.). Further, the memory 59 may include a high speed random access memory, and may also include a nonvolatile memory such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 510 is the control center of the terminal, which connects various parts of the entire terminal using various interfaces and lines, and executes by executing or executing software programs and/or modules stored in the memory 59, and calling data stored in the memory 59. The terminal's various functions and processing data, so as to monitor the terminal as a whole. The processor 510 may include one or more processing units; preferably, the processor 510 may integrate an application processor and a modem processor, wherein the application processor mainly processes an operating system, a user interface, an application, etc., and performs modulation and demodulation. The processor primarily handles wireless communications. It can be understood that the above modem processor may not be integrated into the processor 510.

The terminal 50 may further include a power source 511 (such as a battery) for supplying power to the respective components. Preferably, the power source 511 may be logically connected to the processor 510 through the power management system to manage charging, discharging, power consumption management, etc. through the power management system. Features.

In addition, the terminal 50 includes some functional modules not shown, and details are not described herein again.

Preferably, an embodiment of the present disclosure further provides a terminal, including a processor 510, a memory 59, a computer program stored on the memory 59 and executable on the processor 510, and the computer program is implemented by the processor 510. The various processes of the foregoing information transmission method embodiments can achieve the same technical effects. To avoid repetition, details are not described herein again. The terminal may be a wireless terminal or a wired terminal, and the wireless terminal may be a device that provides voice and/or other service data connectivity to the user, a handheld device with a wireless connection function, or other processing device connected to the wireless modem. . The wireless terminal can communicate with one or more core networks via a Radio Access Network (RAN), which can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a mobile terminal. The computer, for example, can be a portable, pocket, handheld, computer built-in or in-vehicle mobile device that exchanges language and/or data with the wireless access network. For example, Personal Communication Service (PCS) telephone, cordless telephone, Session Initiation Protocol (SIP) telephone, Wireless Local Loop (WLL) station, personal digital assistant (Personal) Digital Assistant, PDA for short. The wireless terminal may also be referred to as a system, a subscriber unit, a subscriber station, a mobile station, a mobile station, a remote station, a remote terminal, and a remote terminal. The access terminal, the user terminal (User Terminal), the user agent (User Agent), and the user device (User Device or User Equipment) are not limited herein.

The embodiment of the present disclosure further provides a computer readable storage medium. The computer readable storage medium stores a computer program, where the computer program is executed by the processor to implement various processes of the foregoing information transmission method embodiment, and can achieve the same technology. The effect, to avoid repetition, will not be repeated here. The computer readable storage medium, such as a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

The above embodiment introduces the information transmission method of the present disclosure from the terminal side. The following embodiment will further introduce the information transmission method on the network device side with reference to the accompanying drawings.

As shown in FIG. 6, the information transmission method of the embodiment of the present disclosure is applied to the network device side, and may include the following steps:

Step 61: Send an advance indication signal to the terminal.

The advance indication signal includes at least one of a wakeup signal WUS and a sleep signal GTS.

In a preferred embodiment, step 61 includes: transmitting, by using the second target time-frequency resource, an advance indication signal to the terminal; wherein, the second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one advance indication signal .

Step 62: Receive identification information of the target beam from the terminal side.

When the transmission resource of the advance indication signal corresponds to one beam, if the advance indication signal triggers the transmission of other signals, the network device configures transmission resources on at least two beams for other signals, or corresponds to the transmission resource of the advance indication signal itself. In the case of at least two beams, the advance indication signal is determined to be associated with the at least two beams. The terminal determines the target beam with the best channel quality among the at least two beams according to the received signal quality by receiving signals on at least two beams. The target beam is the first X of the at least two beams that are determined by the terminal and associated with the advance indication signal, wherein X is an integer greater than or equal to 1. The identifier information includes: the number information of the time-frequency resource corresponding to the target beam, and may include: a WUS/GTS resource number (or an index number) that receives the best signal quality, and/or a CSI-RS that receives the best signal quality. Resource number (or index number). Wherein, when the number of target beams is greater than or equal to 1, the identification information will indicate the number information of the time-frequency resources corresponding to each of the target beams. When the identifier information received by the network device indicates a plurality of target beams, the network device may select one of the target beams as the transmit beam.

The step 62 may include, but is not limited to, receiving the identifier information of the target beam from the terminal side by using a preset manner, where the preset manner includes: a preamble preamble code, a time domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical Uplink shared channel PUSCH. For example, the WUS resource number reported by the terminal can be indicated by a preamble code. For example, different preamble sequences represent different WUS resource numbers. Alternatively, the WUS resource number reported by the terminal may be implicitly indicated by the frequency domain resource where the preamble code is located. For example, different preamble frequency domain resources represent different WUS resource numbers. Alternatively, when in the connected state, the terminal may transmit the uplink control information with the best quality WUS resource number through the PUCCH or the PUSCH.

The above describes how the identification information of the target beam is received. The following embodiment will further introduce the timing of receiving the identification information of the target beam. Step 62 includes one of the following:

Receiving the identification information of the target beam from the terminal side by using the Mth time domain transmission resource after the indication signal in advance; the method is to pre-define the reception timing, for example, the network device performs the identification information on the 10th suframe after the advance indication signal Reception. The value of M may be determined according to the identifier information (UE ID) of the terminal. For example, the value of M may be mod (UE ID, 10) slots.

Or receiving the identification information of the target beam from the terminal side by using the paging opportunity PO or the Nth time domain transmission resource before the activation period of the discontinuous reception DRX cycle; the manner is also pre-defined reception timing, for example, the network device is in the PO or The identification information is received on the 10th slot before On duration. The value of N may be determined according to the identifier information (UE ID) of the terminal, for example, the value of N may be mod (UE ID, 10) slots.

Or receiving the identification information of the target beam from the terminal side by using the preset transmission resource, and sending the preset information indicating the preset transmission resource to the terminal, where the preset information includes: radio resource control RRC information, system information, and downlink control information. At least one of the DCIs. The method is dynamically configured. The network device configures a preset transmission resource of the identifier information, and indicates preset information indicating the preset transmission resource to the terminal, and receives the identifier information at the reporting occasion.

The step 62 further includes: if the advance indication signal triggers the transmission of the channel state indication reference signal CSI-RS, sending the CSI-RS to the terminal by using at least two beams. Specifically, the CSI-RS is sent to the terminal by using the first target time-frequency resource; wherein the first target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS. If the advance indication signal triggers the transmission of the CSI-RS, the network device configures the first target time-frequency resource on the at least two beams. Correspondingly, the terminal receives the CSI-RS from the network device side by using the first target time-frequency resource. Each beam referred to herein corresponds to at least one CSI-RS, which means that each transmission resource may include multiple CSI-RSs and transmit using the same beam.

Preferably, after the step of transmitting the CSI-RS to the terminal by using at least two beams, the method further includes: receiving, by the terminal side, the measurement result, wherein the measurement result is that the terminal indicates, according to the CSI-RS, a channel quality indication CQI, a precoding matrix indication PMI, The rank indication RI and the reference signal received power RSRP of layer one are measured. Taking the L1-PSRP measurement as an example, the terminal receives the CSI-RS sent by the network device, performs L1-RSRP measurement on the CSI-RS of different resources, determines the optimal beam, and reports the resource number information to the PO/On duration. Internet equipment.

After the step 62, the method further includes: sending, by using one of the target beams indicated by the identifier information, a physical downlink channel to the terminal. The network device may select one of the multiple target beams indicated by the identifier information, may be selected in a random manner, or may be selected according to a predefined selection rule. The physical downlink channel includes: PDCCH and/or PDSCH. That is, the network device performs PDCCH/PDSCH transmission by using the target beam corresponding to the WUS resource number indicated by the identifier information. Alternatively, the network device performs PDCCH/PDSCH transmission using the target beam corresponding to the CSI-RS resource number indicated by the identification information.

In the information transmission method of the embodiment of the present disclosure, the network device sends an advance indication signal to the terminal, and the terminal performs beam training on at least two beams associated with the terminal according to the advance indication signal to obtain a target beam with the best quality and identifies the target beam. The information is reported to the network device to ensure that the network device maintains an optimal transmit beam.

The above embodiments respectively describe the information transmission methods in different scenarios. The following embodiments will further introduce their corresponding network devices with reference to the accompanying drawings.

As shown in FIG. 7, the network device 700 of the embodiment of the present disclosure can implement the method of transmitting an advance indication signal to the terminal in the foregoing embodiment, and receiving the identification information of the target beam from the terminal side, and achieve the same effect, wherein the target The beam is of the highest quality among the at least two beams associated with the advance indication signal determined by the terminal. The network device 700 specifically includes the following functional modules:

a second sending module 710, configured to send an advance indication signal to the terminal;

The third receiving module 720 is configured to receive the identifier information of the target beam from the terminal side, where the target beam is the first X of the at least two beams that are determined by the terminal and associated with the advance indication signal, and the X is greater than or equal to An integer of 1.

The network device 700 further includes:

And a third sending module, configured to: if the advance indication signal triggers transmission of the channel state indication reference signal CSI-RS, send the CSI-RS to the terminal by using at least two beams.

The third sending module includes:

And a fifth sending submodule, configured to send, by using the first target time-frequency resource, a CSI-RS to the terminal, where the first target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS.

The network device 700 further includes:

a fourth receiving module, configured to receive the measurement result from the terminal side, where the measurement result is that the terminal according to the CSI-RS, the channel quality indication CQI, the precoding matrix indication PMI, the rank indication RI, and the layer 1 reference signal received power RSRP At least one of the measurements was taken.

The second sending module 710 includes:

The sixth sending sub-module is configured to send an advance indication signal to the terminal by using the second target time-frequency resource, where the second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one advance indication signal.

The third receiving module 720 includes:

The third receiving sub-module is configured to receive the identification information of the target beam from the terminal side in a preset manner, where the preset manner includes: a preamble preamble code, a time-frequency domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical uplink sharing. Channel PUSCH.

The third receiving module 720 further includes:

a fourth receiving submodule, configured to receive, by using the Mth time domain transmission resource after the indication signal, the identification information of the target beam from the terminal side;

or,

a fifth receiving submodule, configured to receive, by the paging opportunity PO or the Nth time domain transmission resource before the activation period of the DRX cycle, the identifier information of the target beam is received from the terminal side;

or,

The sixth receiving submodule is configured to receive the identification information of the target beam from the terminal side by using the preset transmission resource, and send the preset information indicating the preset transmission resource to the terminal, where the preset information includes: the radio resource control RRC information, the system At least one of information and downlink control information DCI.

The network device 700 further includes:

And a fourth sending module, configured to send, by using one of the target beams indicated by the identifier information, a physical downlink channel to the terminal.

It should be noted that the division of each module of the above network device and terminal is only a division of logical functions. In actual implementation, it may be integrated into one physical entity in whole or in part, or may be physically separated. And these modules can all be implemented by software in the form of processing component calls; or all of them can be implemented in hardware form; some modules can be realized by processing component calling software, and some modules are realized by hardware. For example, the determining module may be a separately set processing element, or may be integrated in one of the above-mentioned devices, or may be stored in the memory of the above device in the form of program code, by a processing element of the above device. Call and execute the functions of the above determination module. The implementation of other modules is similar. In addition, all or part of these modules can be integrated or implemented independently. The processing elements described herein can be an integrated circuit with signal processing capabilities. In the implementation process, each step of the above method or each of the above modules may be completed by an integrated logic circuit of hardware in the processor element or an instruction in a form of software.

For example, the above modules may be one or more integrated circuits configured to implement the above method, such as one or more Application Specific Integrated Circuits (ASICs), or one or more microprocessors ( A digital signal processor (DSP), or one or more Field Programmable Gate Arrays (FPGAs). For another example, when one of the above modules is implemented in the form of a processing component scheduler code, the processing component may be a general purpose processor, such as a central processing unit (CPU) or other processor that can call the program code. As another example, these modules can be integrated and implemented in the form of a system-on-a-chip (SOC).

It is to be noted that the network device in the embodiment of the present disclosure sends an advance indication signal to the terminal, and the terminal performs beam training on at least two beams associated with the terminal according to the advance indication signal to obtain a target beam with the best quality and identifies the target beam. The information is reported to the network device to ensure that the network device maintains an optimal transmit beam.

In order to better achieve the above object, an embodiment of the present disclosure further provides a network device, including a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program The steps in the information transmission method as described above are implemented. The embodiment of the invention further provides a computer readable storage medium having stored thereon a computer program, the computer program being executed by the processor to implement the steps of the information transmission method as described above.

Specifically, embodiments of the present disclosure also provide a network device. As shown in FIG. 8, the network device 800 includes an antenna 81, a radio frequency device 82, and a baseband device 83. The antenna 81 is connected to the radio frequency device 82. In the upstream direction, the radio frequency device 82 receives information through the antenna 81 and transmits the received information to the baseband device 83 for processing. In the downstream direction, the baseband device 83 processes the information to be transmitted and transmits it to the radio frequency device 82. The radio frequency device 82 processes the received information and transmits it via the antenna 81.

The above-described band processing device may be located in the baseband device 83, and the method performed by the network device in the above embodiment may be implemented in the baseband device 83, which includes the processor 84 and the memory 85.

The baseband device 83 may include, for example, at least one baseband board on which a plurality of chips are disposed, as shown in FIG. 8, one of which is, for example, a processor 84, connected to the memory 85 to call a program in the memory 85 to execute The network device operation shown in the above method embodiment.

The baseband device 83 can also include a network interface 86 for interacting with the radio frequency device 82, such as a common public radio interface (CPRI).

The processor here may be a processor or a collective name of multiple processing elements. For example, the processor may be a CPU, an ASIC, or one or more configured to implement the method performed by the above network device. An integrated circuit, such as one or more microprocessor DSPs, or one or more field programmable gate array FPGAs. The storage element can be a memory or a collective name for a plurality of storage elements.

Memory 85 can be either volatile memory or non-volatile memory, or can include both volatile and non-volatile memory. The non-volatile memory may be a Read-Only Memory (ROM), a Programmable ROM (Programmable ROM), or an Erasable PROM (EPROM). , electrically erasable programmable read only memory (EEPROM) or flash memory. The volatile memory may be a Random Access Memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous). DRAM (SDRAM for short), double data rate synchronous dynamic random access memory (Double Data Rate SDRAM, DDRSDRAM for short), enhanced synchronous dynamic random access memory (ESDRAM), synchronously connected dynamic random access memory ( Synchlink DRAM (SLDRAM for short) and Direct Memory Bus (DRRAM). The memory 85 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 disclosure further includes: a computer program stored on the memory 85 and operable on the processor 84, and the processor 84 calls a computer program in the memory 85 to execute the method executed by each module shown in FIG. .

Specifically, when the computer program is called by the processor 84, it can be used to execute: sending an advance indication signal to the terminal;

The identifier information of the target beam is received from the terminal side, where the target beam is the first X of the at least two beams that are determined by the terminal and associated with the advance indication signal, and X is an integer greater than or equal to 1.

In some embodiments, before the step of receiving the identification information of the target beam from the terminal side, the method further includes:

If the advance indication signal triggers the transmission of the channel state indication reference signal CSI-RS, the CSI-RS is transmitted to the terminal through at least two beams.

Specifically, the computer program is used by the processor 84 to perform: transmitting, by using the first target time-frequency resource, a CSI-RS to the terminal; wherein, the first target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one CSI-RS.

Specifically, when the computer program is called by the processor 84, it can be used to: receive the measurement result from the terminal side, wherein the measurement result is that the terminal indicates the channel quality CQI, the precoding matrix indication PMI, the rank indication RI, and the layer according to the CSI-RS. A reference signal received by at least one of the powers RSRP is measured.

Specifically, when the computer program is invoked by the processor 84, the method may be configured to: send, by using the second target time-frequency resource, an advance indication signal to the terminal, where the second target time-frequency resource corresponds to at least two beams, and each beam corresponds to at least one Indicate the signal in advance.

Specifically, when the computer program is invoked by the processor 84, the method may be configured to: receive the identification information of the target beam from the terminal side by using a preset manner, where the preset manner includes: a preamble code, a time domain resource where the preamble code is located, and a physical uplink. Control channel PUCCH or physical uplink shared channel PUSCH.

Specifically, the computer program is used by the processor 84 to perform: receiving, by the Mth time domain transmission resource after the indication signal, the identification information of the target beam from the terminal side;

Receiving, by the paging opportunity PO or the Nth time domain transmission resource before the activation period of the DRX cycle, receiving the identification information of the target beam from the terminal side;

Receiving the identification information of the target beam from the terminal side by using the preset transmission resource, and transmitting the preset information indicating the preset transmission resource to the terminal, where the preset information includes: radio resource control RRC information, system information, and downlink control information DCI At least one of them.

Specifically, when the computer program is called by the processor 84, it can be used to execute: sending a physical downlink channel to the terminal by using one of the target beams indicated by the identification information.

The network device may be a Global System of Mobile communication (GSM) or a Code Division Multiple Access (CDMA) base station (Base Transceiver Station, BTS for short) or a wideband code. A base station (NodeB, NB for short) in the Wideband Code Division Multiple Access (WCDMA), and may also be an evolved Node B (eNB or eNodeB) in LTE, or a relay station or an access point. Or a base station or the like in a future 5G network is not limited herein.

The network device in the embodiment of the present disclosure sends an advance indication signal to the terminal, and the terminal performs beam training on the at least two beams associated with the target according to the advance indication signal to obtain a target beam with the best quality, and reports the identification information of the target beam to the terminal. Network equipment to ensure that the network equipment maintains an optimal transmit beam.

Those of ordinary skill in the art will appreciate that the elements and algorithm steps of the various examples described in connection with the embodiments disclosed herein can be implemented in electronic hardware or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present disclosure.

A person skilled in the art can clearly understand that for the convenience and brevity of the description, the specific working process of the system, the device and the unit described above can refer to the corresponding process in the foregoing method embodiment, and details are not described herein again.

In the embodiments provided by the present application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the device embodiments described above are merely illustrative. For example, the division of the unit is only a logical function division. In actual implementation, there may be another division manner, for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.

The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product. Based on such understanding, a portion of the technical solution of the present disclosure that contributes in essence or to the prior art or a portion of the technical solution may be embodied in the form of a software product stored in a storage medium, including The instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present disclosure. The foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.

Moreover, it should be noted that in the apparatus and method of the present disclosure, it is apparent that the various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the above-described series of processes may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order, and some steps may be performed in parallel or independently of each other. It will be appreciated by those skilled in the art that all or any of the steps or components of the methods and apparatus of the present disclosure may be in a network of any computing device (including a processor, storage medium, etc.) or computing device, in hardware, firmware The software, or a combination thereof, is implemented by those of ordinary skill in the art using their basic programming skills while reading the description of the present disclosure.

Thus, the objects of the present disclosure can also be achieved by running a program or a set of programs on any computing device. The computing device can be a well-known general purpose device. Accordingly, the objects of the present disclosure may also be realized by merely providing a program product including program code for implementing the method or apparatus. That is to say, such a program product also constitutes the present disclosure, and a storage medium storing such a program product also constitutes the present disclosure. It will be apparent that the storage medium may be any known storage medium or any storage medium developed in the future. It should also be noted that in the apparatus and method of the present disclosure, it is apparent that various components or steps may be decomposed and/or recombined. These decompositions and/or recombinations should be considered as equivalents to the present disclosure. Also, the steps of performing the series of processes described above may naturally be performed in chronological order in the order illustrated, but need not necessarily be performed in chronological order. Certain steps may be performed in parallel or independently of one another.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. Within the scope of public protection.

Claims

An information transmission method is applied to a terminal side, and the method includes:

Receiving an advance indication signal from a network device side;

Determining, according to the advance indication signal, a first X target beams of the best quality among the at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

And transmitting, to the network device, identification information of the target beam.
The information transmission method according to claim 1, wherein the step of determining the first X target beams of the best quality among the at least two beams associated with the advance indication signal according to the advance indication signal comprises:

Receiving, by the network device side, a CSI-RS, where the advance indication signal triggers transmission of a channel state indication reference signal CSI-RS, where the CSI-RS is sent by the network device by using at least two beams;

Performing measurement on the received CSI-RS, determining the top X target beams of the at least two beams with the best quality.
The information transmission method according to claim 2, wherein the step of receiving a CSI-RS from the network device side comprises:

Receiving, by the first target time-frequency resource, the CSI-RS from the network device side, where the first target time-frequency resource corresponds to the at least two beams, and each beam corresponds to at least one CSI-RS.
The information transmission method according to claim 2, wherein after the step of receiving the CSI-RS from the network device side, the method further comprises:

And measuring, according to the CSI-RS, at least one of a channel quality indication CQI, a precoding matrix indication PMI, a rank indication RI, and a layer one reference signal received power RSRP.
The information transmission method according to claim 1 or 2, wherein the step of receiving the advance indication signal from the network device side comprises:

Receiving, by the second target time-frequency resource, the advance indication signal from the network device side, where the second target time-frequency resource corresponds to the at least two beams, and each beam corresponds to at least one advance indication signal;

And determining, according to the advance indication signal, a step of selecting the first X target beams of the best quality among the at least two beams associated with the advance indication signal, including:

The received advance indication signal is measured to determine the top X target beams of the at least two beams with the best quality.
The information transmission method according to claim 1, wherein the identification information comprises: number information of a time-frequency resource corresponding to the target beam.
The information transmission method according to claim 1, wherein the step of transmitting the identification information of the target beam to the network device comprises:

The identifier information of the target beam is sent to the network device in a preset manner, where the preset manner includes: a preamble preamble code, a time-frequency domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical uplink sharing. Channel PUSCH.
The information transmission method according to claim 1, wherein the step of transmitting the identification information of the target beam to the network device comprises:

Transmitting the identification information of the target beam to the network device by using the Mth time domain transmission resource after the advance indication signal;

or,

Transmitting, by the paging opportunity PO or the Nth time domain transmission resource before the activation period of the DRX cycle, the identification information of the target beam to the network device;

or,

And transmitting the identifier information of the target beam to the network device by using a transmission resource indicated by the preset information, where the preset information includes: at least one of radio resource control RRC information, system information, and downlink control information DCI .
The information transmission method according to claim 8, wherein the value of the M or N is determined according to identification information of the terminal.
The information transmission method according to claim 1, wherein after the step of transmitting the identification information of the target beam to the network device, the method further includes:

Receiving, by the network device, a physical downlink channel that is sent by one of target beams indicated by the identifier information.
A terminal comprising:

a first receiving module, configured to receive an advance indication signal from a network device side;

a determining module, configured to determine, according to the advance indication signal, a first X target beams of the best quality among the at least two beams associated with the advance indication signal, where X is an integer greater than or equal to 1;

The first sending module is configured to send identifier information of the target beam to the network device.
A terminal comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the computer program being executed by the processor to implement any one of claims 1 to 10 The steps of the information transmission method described in the item.
An information transmission method is applied to a network device side, and the method includes:

Sending an advance indication signal to the terminal;

Receiving identification information of the target beam from the terminal side; wherein the target beam is the top X of the at least two beams that are determined by the terminal and associated with the advance indication signal, and X is greater than or equal to An integer of 1.
The information transmission method according to claim 13, wherein before the step of receiving the identification information of the target beam from the terminal side, the method further includes:

And if the advance indication signal triggers transmission of the channel state indication reference signal CSI-RS, sending the CSI-RS to the terminal by using at least two beams.
The information transmission method according to claim 14, wherein the step of transmitting a CSI-RS to the terminal by using at least two beams comprises:

And transmitting, by the first target time-frequency resource, a CSI-RS to the terminal, where the first target time-frequency resource corresponds to the at least two beams, and each beam corresponds to at least one CSI-RS.
The information transmission method according to claim 14, wherein after the step of transmitting the CSI-RS to the terminal by using at least two beams, the method further includes:

Receiving a measurement result from the terminal side, where the measurement result is that the terminal indicates a channel quality indication CQI, a precoding matrix indication PMI, a rank indication RI, and a reference signal received power RSRP according to the CSI-RS. At least one of the measurements was taken.
The information transmission method according to claim 13 or 14, wherein the step of transmitting an advance indication signal to the terminal comprises:

And transmitting, by the second target time-frequency resource, an advance indication signal to the terminal, where the second target time-frequency resource corresponds to the at least two beams, and each beam corresponds to at least one advance indication signal.
The information transmission method according to claim 13, wherein the identification information comprises: number information of a time-frequency resource corresponding to the target beam.
The information transmission method according to claim 13, wherein the step of receiving the identification information of the target beam from the terminal side comprises:

Receiving the identification information of the target beam from the terminal side in a preset manner, where the preset manner includes: a preamble preamble code, a time frequency domain resource where the preamble code is located, a physical uplink control channel PUCCH, or a physical uplink shared channel PUSCH .
The information transmission method according to claim 13, wherein the step of receiving the identification information of the target beam from the terminal side comprises:

Receiving, by the Mth time domain transmission resource after the advance indication signal, identifier information of the target beam from the terminal side;

or,

Receiving, by the paging opportunity PO or the Nth time domain transmission resource before the activation period of the DRX cycle, receiving the identification information of the target beam from the terminal side;

or,

Receiving the identification information of the target beam from the terminal side by using the preset transmission resource, and transmitting the preset information indicating the preset transmission resource to the terminal, where the preset information includes: radio resource control RRC information, system information, and At least one of the downlink control information DCI.
The information transmission method according to claim 20, wherein the value of said M or N is determined based on identification information of said terminal.
The information transmission method according to claim 13, wherein after the step of receiving the identification information of the target beam from the terminal side, the method further comprises:

And transmitting, by the one of the target beams indicated by the identifier information, a physical downlink channel to the terminal.
A network device, including:

a second sending module, configured to send an advance indication signal to the terminal;

a third receiving module, configured to receive, by the terminal side, identification information of a target beam, where the target beam is a front X of an optimal quality of at least two beams associated with the advance indication signal determined by the terminal X is an integer greater than or equal to 1.
A network device comprising a processor, a memory, and a computer program stored on the memory and operable on the processor, the processor executing the computer program to implement any one of claims 13 to 22 The steps of the information transmission method.
A computer readable storage medium having stored thereon a computer program, the computer program being executed by a processor to implement the steps of the information transmission method according to any one of claims 1 to 10, 13 to 22.