CN113630859B

CN113630859B - Information confirmation method, terminal equipment and network equipment

Info

Publication number: CN113630859B
Application number: CN202010374288.4A
Authority: CN
Inventors: 云翔; 吴俊峰; 孙玉飞
Original assignee: Baicells Technologies Co Ltd
Current assignee: Baicells Technologies Co Ltd
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2023-07-21
Anticipated expiration: 2040-05-06
Also published as: CN113630859A

Abstract

The invention provides an information confirmation method, terminal equipment and network equipment, wherein the information confirmation method comprises the following steps: determining effective time information of a media access control element (MAC CE) according to the target time unit and preset parameters; the target time unit is a time unit for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a target Physical Downlink Shared Channel (PDSCH); the target PDSCH is a received PDSCH carrying the MAC CE; the preset parameters include preset value time, or uplink timing advance and preset value time. The scheme can realize that the effective time of the MAC CE determined by the terminal equipment is matched with the network equipment side, thereby ensuring correct communication and system efficiency between the terminal equipment and the network equipment, and well solving the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art.

Description

Information confirmation method, terminal equipment and network equipment

Technical Field

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

Background

The radio frame length for uplink and downlink transmission in the NR (new air interface) system is 10ms, which includes 10 subframes, and the length of each subframe is 1ms. The number of slots included in one subframe is different for different subcarrier spacing configurations μ. Each subframe contains the number of time slots ofThe number of symbols is-> Is the number of symbols in a slot. In case of normal CP (cyclic prefix,) the +_>

Currently, a gcb (base station) transmits PDSCH (physical downlink shared channel) carrying MAC CE. After receiving the PDSCH of the MAC CE, the UE (terminal) takes effect from the slot n+k when the PUCCH (physical uplink control channel) corresponding to the HARQ-ACK (hybrid automatic repeat request acknowledgement) of the PDSCH is in the slot n. Wherein, the liquid crystal display device comprises a liquid crystal display device, the number of slots is equal to 1 sub-carrier interval configuration μ included in the sub-frame, and μ is the sub-carrier interval configuration of BWP (bandwidth part) where the PUCCH for transmitting the PDSCH corresponding to HARQ-ACK is located. />Which is a time of 1ms in time.

The configuration of the MAC CE will determine the communication procedures of measurement, data reception, transmission, etc. of the UE. Taking the example of activation or deactivation of the MAC CE by the semi-persistent zero-power CSI-RS resource set, PDSCH cannot be mapped on RE (resource element) resources of the zero-power CSI-RS. Within one BWP, the UE may be configured with one or more semi-persistent zero-power CSI-RS resource sets. The activation or deactivation of the MAC CE by the set of semi-persistent zero power CSI-RS resources indicates to the UE which of the currently active semi-persistent zero power CSI-RS is, so that the UE can determine the RE resources that the mapped PDSCH can use. If the UE receives the PDSCH of the half-continuous zero-power CSI-RS resource set activation/deactivation MAC CE and the HARQ-ACK corresponding to the PDSCH is fed back in a time slot n, the half-continuous zero-power CSI-RS resource set activated/deactivated by the MAC CE takes effect from the time slot n+k.

As shown in fig. 1 (DL in the figure indicates downlink, UL indicates uplink, a indicates UE side MAC CE validation time, b indicates gNB side MAC CE validation time), UE receives PDSCH of gcb transmitting MAC CE, HARQ-ACK of the PDSCH corresponds to t ₀ PUCCH at time. The MAC CE information is at t ₁ Start to take effect at the moment, according to the prior artNR (New air interface) land communication system design, t ₀ Time sum t ₁ The time difference between the moments isThe air propagation delay of the land communication system is smaller, and gNB also experiences and +.>After a certain time, confirming that the MAC CE information is effective, and ensuring that the communication process between the gNB and the UE is normally carried out; in addition, because propagation delay between the UE and the gNB in the terrestrial communication system is small, the time for the MAC CE to take effect determined by the UE can be used to determine the time for the MAC CE to take effect in uplink or the time for the MAC CE to take effect in downlink.

Currently, new air interface (NR) systems are mainly designed for terrestrial communication systems. With the rapid development of the mobile internet, the demand for surfing the internet at any time and any place is increasing, and mobile communication systems (such as satellites, unmanned aerial vehicles, etc.) based on non-terrestrial networks are also getting attention gradually. The coverage of a mobile communication system other than a terrestrial network is wider than that of a terrestrial communication system, and the transmission delay between a terminal device and a network device is considerably longer than that of a terrestrial communication system. Particularly in the context of satellite communication systems, the transmission delay between a terminal device and a network device may be as high as one hundred milliseconds or more.

However, since the propagation delay in the air between the network device and the UE in the mobile communication system of the non-terrestrial network is large, the UE transmits HARQ-ACK information for MAC CEPossibly that the HARQ-ACK information has not arrived at the gNB end; or even if the gNB end is reached, the gNB does not demodulate the HARQ-ACK information and completes the preparation process before the MAC CE takes effect. For example, in fig. 1, the HARQ-ACK sent by the UE is at t ₂ The gNB is reached at the moment, and the MAC CE information is already validated at the UE side according to the prior art; still with semi-continuous zero power CSI-For example, the RS resource set activates or deactivates the MAC CE, and the UE side is at t ₁ Starting to take effect at moment, activating or deactivating MAC CE information by using semi-continuous zero-power CSI-RS resource set, and enabling gNB to take effect at t ₃ The MAC CE information is validated at the moment. Thus, at t ₁ And t ₃ In between, the UE and the gNB have different knowledge of the activation or deactivation state of the semi-persistent zero-power CSI-RS resource set, which ultimately results in failure of the UE to correctly determine the RE resources mapped by the PDSCH scheduled in the time period and thus failure of demodulation.

To sum up, according to the prior art, on the UE side, the PUCCH corresponding to the HARQ-ACK of the PDSCH of the MAC CE is in the slot n, then the information of the MAC CE takes effect from the slot n+k, and since the propagation delay between the UE and the gNB is small in the terrestrial communication system, the time for the UE to determine that the MAC CE takes effect can be used to determine the time for the MAC CE takes effect in the downlink or the time for the MAC CE takes effect in the uplink.

In a mobile communication system of a non-terrestrial network, an air propagation delay between a network device and a UE is large. The effective state of the MAC CE information may be inconsistent between the UE side and the network device side in a part of the time period, which further causes abnormal or even failure communication between the terminal device and the network device, and affects the system efficiency.

Similarly, the determination of the effective time of other MAC CEs between the gNB and the UE in the prior art may also cause a situation that the configuration state indicated by the MAC CE is different between the gNB and the UE during a part of the time, which affects the communication quality and efficiency.

As can be seen from the above, in the prior art, there may be a mismatch between the effective time of the terminal device and the network device for the MAC CE, resulting in abnormal communication.

Disclosure of Invention

The invention aims to provide an information confirmation method, terminal equipment and network equipment, which are used for solving the problem of communication abnormality caused by the fact that the effective time of the terminal equipment and the network equipment for MAC CE is possibly mismatched in the prior art.

In order to solve the above technical problems, an embodiment of the present invention provides an information confirmation method, applied to a terminal device, including:

determining effective time information of a media access control element (MAC CE) according to the target time unit and preset parameters;

The target time unit is a time unit for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a target Physical Downlink Shared Channel (PDSCH);

the target PDSCH is the received PDSCH carrying the MAC CE;

the preset parameters comprise preset value time or uplink timing advance and preset value time.

Optionally, the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes:

determining a first time unit for starting to send uplink information according to the MAC CE;

the first time unit is a first uplink time unit after a first reference time, the first reference time is a time located at a first time length after the target time unit, and the first time length is equal to the sum of the uplink timing advance and a preset value time.

Optionally, the first time unit is a first uplink time unit located after a first reference time in the uplink carriers configured by the MAC CE.

Determining a second time unit for starting to receive downlink information according to the MAC CE;

the second time unit is a first downlink time unit after a second reference time, where the second reference time is a time located at a second duration after a receiving time of a physical uplink control channel PUCCH of the HARQ-ACK corresponding to the target PDSCH, and the second duration is equal to the preset value time.

Optionally, the receiving time of the first downlink time unit is not earlier than the first time unit;

Optionally, the second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

Optionally, the MAC CE includes any one of the following:

the PUCCH spatial relationship activates or deactivates the MAC CE, the transmission configuration indication TCI state of the UE-specific PDSCH activates or deactivates the MAC CE, the TCI state of the UE-specific PDCCH indicates the MAC CE, the semi-persistent channel state information reference signal CSI-RS activates or deactivates the MAC CE, and the channel state information interference measurement CSI-IM resource set activates or deactivates the MAC CE.

The embodiment of the invention also provides an information confirmation method which is applied to the network equipment and comprises the following steps:

determining effective time information of a media access control element (MAC CE) according to the third time unit and preset parameters;

the third time unit is a time unit for receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a Physical Downlink Shared Channel (PDSCH) of a target;

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

Optionally, the determining the effective time information of the MAC CE according to the third time unit and the preset parameter includes:

determining a second time unit for starting to send information according to the MAC CE;

the second time unit is a first downlink time unit after a third reference time, the third reference time is a time located at a third time length after the third time unit, and the third time length is equal to the preset value time.

Determining a fourth time unit for starting to receive information according to the MAC CE;

the fourth time unit is a first uplink time unit after a fourth reference time, the fourth reference time is a time located at a fourth time length after the third time unit, and the fourth time length is equal to the sum of the uplink timing advance and a preset value time.

Optionally, the MAC CE includes any one of the following:

The embodiment of the invention also provides a terminal device, which comprises:

the first determining module is used for determining the effective time information of the media access control element (MAC CE) according to the target time unit and the preset parameters;

The target PDSCH is the received PDSCH carrying the MAC CE;

Optionally, the first determining module includes:

a first determining submodule, configured to determine a first time unit for starting to transmit uplink information according to the MAC CE;

Optionally, the first determining module includes:

a second determining submodule, configured to determine a second time unit when to start receiving downlink information according to the MAC CE;

Optionally, the MAC CE includes any one of the following:

The embodiment of the invention also provides a network device, which comprises:

the second determining module is used for determining the effective time information of the media access control element (MAC CE) according to the third time unit and the preset parameters;

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

Optionally, the second determining module includes:

a third determining submodule, configured to determine a second time unit at which to start transmitting information according to the MAC CE;

Optionally, the second determining module includes:

a fourth determining sub-module for determining a fourth time unit for starting to receive information according to the MAC CE;

Optionally, the MAC CE includes any one of the following:

The embodiment of the invention also provides a terminal device which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor; and the processor realizes the steps of the information confirmation method at the terminal equipment side when executing the program.

The embodiment of the invention also provides a network device which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; and the processor realizes the steps of the information confirmation method at the network equipment side when executing the program.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when being executed by a processor, implements the steps of the information confirmation method on the terminal device side or the network device side.

The technical scheme of the invention has the following beneficial effects:

in the above scheme, the information confirmation method determines the effective time information of the media access control element MAC CE according to the target time unit and the preset parameter; the target time unit is a time unit for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a target Physical Downlink Shared Channel (PDSCH); the target PDSCH is the received PDSCH carrying the MAC CE; the preset parameters comprise preset value time or uplink timing advance and preset value time; the effective time of the MAC CE determined by the terminal equipment can be matched with the network equipment side, so that correct communication and system efficiency between the terminal equipment and the network equipment are ensured, and the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art is well solved.

Drawings

Fig. 1 is a schematic diagram of the prior art of timing the validation time of a MAC CE of a mobile communication system using a terrestrial communication system;

FIG. 2 is a flowchart of a method for confirming information according to an embodiment of the present invention;

FIG. 3 is a second flowchart of an information confirmation method according to an embodiment of the present invention;

Fig. 4 is a schematic diagram of timing of the validation time of a MAC CE in a mobile communication system of a non-terrestrial network according to an embodiment of the present invention;

fig. 5 is a second timing diagram of the effective time of a MAC CE in a mobile communication system of a non-terrestrial network according to an embodiment of the present invention;

fig. 6 is a third timing diagram of the effective time of a MAC CE in a mobile communication system of a non-terrestrial network according to an embodiment of the present invention;

fig. 7 is a timing diagram of the effective time of a MAC CE of a mobile communication system of a non-terrestrial network according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a terminal device structure according to an embodiment of the present invention;

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

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

fig. 11 is a schematic diagram of a network device according to an embodiment of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved more apparent, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The invention provides an information confirmation method, which is applied to terminal equipment and shown in fig. 2, and comprises the following steps:

Step 21: determining effective time information of a media access control element (MAC CE) according to the target time unit and preset parameters;

the target PDSCH is the received PDSCH carrying the MAC CE;

According to the information confirmation method provided by the embodiment of the invention, the effective time information of the media access control element (MAC CE) is determined according to the target time unit and the preset parameters; the target time unit is a time unit for transmitting hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a target Physical Downlink Shared Channel (PDSCH); the target PDSCH is the received PDSCH carrying the MAC CE; the preset parameters comprise preset value time or uplink timing advance and preset value time; the effective time of the MAC CE determined by the terminal equipment can be matched with the network equipment side, so that correct communication and system efficiency between the terminal equipment and the network equipment are ensured, and the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art is well solved.

Wherein, the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes: determining a first time unit for starting to send uplink information according to the MAC CE; the first time unit is a first uplink time unit after a first reference time, the first reference time is a time located at a first time length after the target time unit, and the first time length is equal to the sum of the uplink timing advance and a preset value time.

Specifically, the first time unit is a first uplink time unit located after a first reference time in the uplink carrier configured by the MAC CE.

Wherein, the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes: determining a second time unit for starting to receive downlink information according to the MAC CE; the second time unit is a first downlink time unit after a second reference time, where the second reference time is a time located at a second duration after a receiving time of a physical uplink control channel PUCCH of the HARQ-ACK corresponding to the target PDSCH, and the second duration is equal to the preset value time.

Specifically, the receiving time of the first downlink time unit is not earlier than the first time unit; the first time unit is a first uplink time unit after a first reference time, the first reference time is a time located at a first time length after the target time unit, and the first time length is equal to the sum of the uplink timing advance and a preset value time.

The second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

In the embodiment of the present invention, the MAC CE includes any one of the following: the PUCCH spatial relationship activates or deactivates the MAC CE, the transmission configuration indication TCI state of the UE-specific PDSCH activates or deactivates the MAC CE, the TCI state of the UE-specific PDCCH indicates the MAC CE, the semi-persistent channel state information reference signal CSI-RS activates or deactivates the MAC CE, and the channel state information interference measurement CSI-IM resource set activates or deactivates the MAC CE.

The embodiment of the invention also provides an information confirmation method, which is applied to the network equipment, as shown in fig. 3, and comprises the following steps:

step 31: determining effective time information of a media access control element (MAC CE) according to the third time unit and preset parameters;

the target PDSCH is the PDSCH carrying the MAC CE transmitted (by the network device);

According to the information confirmation method provided by the embodiment of the invention, the effective time information of the media access control element (MAC CE) is determined according to the third time unit and the preset parameters; the third time unit is a time unit for receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a Physical Downlink Shared Channel (PDSCH) of a target; the target PDSCH is the transmitted PDSCH carrying the MAC CE; the preset parameters comprise preset value time or uplink timing advance and preset value time; the effective time of the MAC CE determined by the network equipment can be matched with the terminal equipment side, so that correct communication and system efficiency between the network equipment and the terminal equipment are ensured, and the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art is well solved.

Wherein, the determining the effective time information of the MAC CE according to the third time unit and the preset parameter includes: determining a second time unit for starting to send information according to the MAC CE; the second time unit is a first downlink time unit after a third reference time, the third reference time is a time located at a third time length after the third time unit, and the third time length is equal to the preset value time.

Wherein, the determining the effective time information of the MAC CE according to the third time unit and the preset parameter includes: determining a fourth time unit for starting to receive information according to the MAC CE; the fourth time unit is a first uplink time unit after a fourth reference time, the fourth reference time is a time located at a fourth time length after the third time unit, and the fourth time length is equal to the sum of the uplink timing advance and a preset value time.

The method for confirming information provided by the embodiment of the invention is further described below with reference to two sides of a terminal device and a network device, wherein the network device takes a base station as an example.

In view of the above technical problems, an embodiment of the present invention provides an information confirmation method, specifically a wireless communication method, which is mainly used for determining the effective time timing relationship of MAC CE information in a mobile communication system of a non-terrestrial network such as ground-air communication or satellite communication, so as to ensure correct communication and system efficiency of network equipment and terminal equipment.

The following illustrates the scheme provided by the embodiment of the invention.

Example one:

terminal equipment side:

receiving a PDSCH carrying an MAC CE, determining a PUCCH for transmitting HARQ-ACK corresponding to the PDSCH in a target time unit, determining to transmit uplink information according to the MAC CE information from a first time unit according to the target time unit, and/or determining to receive downlink information according to the MAC CE from a second time unit;

the first time unit is a first uplink time unit after the first reference time, and the second time unit is a first downlink time unit after the second reference time; the first reference time is located after the target time unit, and then the time of adding the sum of the uplink timing advance and the preset value time (namely, the first reference time is located after the target time unit for a first duration); the second reference time is located at a time after the receiving time of the PUCCH of the HARQ-ACK corresponding to the PDSCH carrying the MAC CE by a preset value time (i.e. the second reference time is located at a time of a second duration after the receiving time of the PUCCH of the physical uplink control channel of the HARQ-ACK corresponding to the target PDSCH).

Specifically, the target time unit is the time when the terminal device sends the HARQ-ACK, where the time+the uplink timing advance+the preset value=the first reference time.

Network equipment side:

transmitting a PDSCH carrying an MAC CE, and determining a PUCCH for receiving HARQ-ACK corresponding to the PDSCH in a third time unit; determining to transmit information according to the configuration of the MAC CE information from a second time unit and/or to receive information according to the configuration of the MAC CE information from a fourth time unit; the second time unit is the first downlink time unit after the third time unit has elapsed the preset value time (i.e. the third reference time is a time located at a third time period after the third time unit, the specific value of the second time unit finally obtained by the terminal device side and the network device side is matched), and the fourth time unit is the first uplink time unit after the third time unit has elapsed the uplink timing advance added with the preset value time (i.e. the fourth time unit is the first uplink time unit after the fourth reference time, and the fourth reference time is a time located at a fourth time period after the third time unit).

The specific examples are:

the UE receives the PDSCH and determines that the PDSCH carries MAC CE information. The UE also determines a PUCCH to transmit the PDSCH corresponding to the HARQ-ACK at the target time unit. As shown in fig. 4, the target time unit is for example from t ₀ Starting at the moment. In fig. 4, c represents a target time unit, d represents a third time unit, e represents a second time unit, f represents a first time unit, and g represents a fourth time unit.

The HARQ-ACK sent by the UE reaches the gNB after a certain propagation delay. The UE needs to send HARQ-ACK with a certain uplink timing advance earlier than the downlink reception time, which is about twice the propagation delay in the air between the network device and the UE, i.e. t ₀ And t ₁ Twice the time difference between them. Based on the uplink timing advance, the UE can determine that the time unit for the HARQ-ACK information to reach gNB is at t ₁ Time of day. The effective time of the MAC CE information in the uplink direction is located in a first time unit, and the first time unit is a first uplink time unit after a first reference time. The first reference time is located after the target time unit and is the time when the sum of the uplink advance and the preset value time is passed. Taking a preset value of 3 time units as an example, the first reference time is at t ₄ Time of day. t is t ₄ The time of day may not be the starting position of the uplink time unit. In this case, the first time unit is the first uplink time unit after the reference time. In this example, the UE starts to transmit information using configuration information according to the MAC CE at the first time unit. The effective time of the MAC CE in the downlink direction is located in a second time unit. The second time unit is the first downlink time unit after the second reference time, and the second reference time is located at the connection of the PUCCH of the corresponding HARQ-ACK of the PDSCH carrying the MAC CE The time of the reception is later than the time of the preset value time. In fig. 4, assuming that the receiving time of PUCCH of PDSCH corresponding to HARQ-ACK carrying MAC CE is located in the third time unit, the second reference time is located at a time preset after the third time unit, i.e. t in fig. 2 ₂ Time of day. The MAC CE downlink direction is at t ₂ The first downstream time unit after the moment is validated, i.e. the second time unit is validated. That is, the UE receives downlink information from the second time unit according to the configuration of the MAC CE. Starting from the second time unit, gNB sends downlink information according to the configuration condition of the MAC CE, and the time that the downlink information sent by gNB according to the configuration condition of the MAC CE reaches the UE through the air propagation delay is not earlier than t ₄ Time of receiving downlink information by UE according to the MAC CE is also from t ₄ The first after the moment. Therefore, the UE receives and transmits information according to the configuration of the MAC CE from the first reference time onward. And the gNB starts to send information according to the configuration of the MAC CE after the second reference time, and starts to receive information according to the configuration of the MAC CE after the third reference time. The third reference time and the first time unit differ by half of the time of the uplink timing difference.

Among the MAC CE information sent by the gNB to the UE, some act on downlink information transmission, some act on uplink information transmission, and some act on both downlink and uplink transmission. The MAC CEs acting on the downlink transmission include, for example, a TCI state activation or deactivation MAC CE of the UE-specific PDSCH, a TCI state indication MAC CE of the UE-specific PDCCH, a semi-persistent CSI-RS/CSI-IM resource set activation or deactivation MAC CE, a semi-persistent zero-power CSI-RS resource set activation or deactivation MAC CE, and the like. Taking the TCI state activation or deactivation of the UE-specific PDSCH as an example, in the case where the UE is configured with TCI states of multiple PDSCH by higher layer signaling, the UE determines a TCI state set of PDSCH based on the TCI state activation or deactivation of the MAC CE of this PDSCH. Whether the MAC CE is effective or not is reflected in the process of receiving the PDSCH by the UE. The MAC CEs acting on the uplink transmission include aperiodic CSI-triggered state subset MAC CEs. MAC CEs that operate on both downlink and uplink transmissions include, for example, PUCCH spatial relationship activation or deactivation of MAC CEs, etc. If the UE is configured with a plurality of PUCCH spatial relationships, the UE activates or deactivates the MAC CE by receiving the PUCCH spatial relationships, determines an adjustment amount p0-PUCCH-Value for adjusting PUCCH transmission power, a reference signal for measuring path loss, a filter of the PUCCH in the spatial domain, and the like.

In this example, the UE determines uplink transmission and downlink reception times at which the MAC CE information is effective according to the transmission time of the target time unit and the uplink timing advance (and the preset value time). The gNB determines downlink transmission and uplink receiving time for the effective MAC CE according to the receiving time of the target time unit and the uplink timing advance (and preset value time), so that the problem that the effective state of the MAC CE information is possibly inconsistent in part of time periods at the UE side and at the network equipment side due to larger air propagation delay between network equipment and the UE in a mobile communication system of a non-ground network can be solved. And the gNB and the UE have the same understanding on the downlink time unit and the uplink time unit which are effective on the MAC CE, so that the communication process can be ensured to be performed correctly.

In a mobile communication system of a non-terrestrial network, a UE transmits a random access signal or an uplink reference signal to acquire uplink timing advance information from a gNB, and it is possible that the transmission time of the random access signal or the uplink reference signal transmitted by the UE is pre-compensated for the timing advance. In this case, the first reference time is located after the target time unit, and is a time when the sum of the uplink timing advance and the preset value time is elapsed, where the uplink timing advance also includes the timing advance precompensation time of the UE. The third reference time and the first time unit differ by half of the time of the uplink timing difference, and the uplink timing advance also includes the timing advance precompensation time of the UE.

The time units referred to by the first time unit, the second time unit, the third time unit and the fourth time unit are "time slots", for example, it is assumed that the time lengths of the first time unit and the second time unit are the same.

Example two:

similar to example one, the differences are described below, and as shown in fig. 5, c in the figure represents a target time unit, d represents a third time unit, e represents a second time unit, f represents a first time unit, and g represents a fourth time unit. The receiving time of the second time unit of the effective time of the MAC CE in the downlink is not earlier than the first time unit of the effective time of the MAC CE in the uplink, so that the scheduling control of the gNB to the UE is facilitated.

Terminal equipment side:

receiving a PDSCH carrying an MAC CE, determining a PUCCH for transmitting HARQ-ACK corresponding to the PDSCH in a target time unit, determining to transmit uplink information according to the MAC CE information from a first time unit according to the target time unit, and/or determining to receive downlink information according to the MAC CE from a second time unit.

The first time unit is a first uplink time unit after the first reference time, and the second time unit is a downlink time unit with the first receiving time not earlier than the first time unit after the second reference time; the first reference time is located after the target time unit, and then the time of adding the sum of the uplink timing advance and the preset value time (namely, the first reference time is located after the target time unit for a first duration); the second reference time is located at a time after the receiving time of the PUCCH of the HARQ-ACK corresponding to the PDSCH carrying the MAC CE by a preset value time (i.e. the second reference time is located at a time of a second duration after the receiving time of the PUCCH of the physical uplink control channel of the HARQ-ACK corresponding to the target PDSCH).

The second time unit is a downlink time unit with the first receiving time not earlier than the first time unit after the second reference time, so that when the second time unit sends the uplink scheduling indication information of the UE according to the MAC CE, the time that the uplink scheduling indication information reaches the UE is not earlier than the first time unit, and the UE can send the uplink information according to the indication of the MAC CE.

Network equipment side:

Example three:

on the basis of example one, it is possible that the subcarrier spacing configuration of the PUCCH corresponding to the HARQ-ACK of the MAC CE is different from the downlink BWP subcarrier spacing of the downlink configuration related to the MAC CE. For example, PDSCH carrying MAC CE is located in the component carrier CC1, where the MAC CE is used to indicate configuration information of CC2, and HARQ-ACK corresponding to the PDSCH is fed back in CC 3. In this case, the effective time of the MAC CE information in the uplink direction is the first uplink time unit after the first reference time, and the effective time of the MAC CE information in the downlink direction is the first downlink time unit after the second reference time, CC 2.

As illustrated in fig. 6 and 7, in the case where the subcarrier spacing configuration of the PDSCH transmitting the MAC CE and the subcarrier spacing configuration of the PUCCH transmitting the HARQ-ACK thereof are different, the second time unit is the first downlink time unit after the second reference time, where the downlink time unit refers to the time unit of the component carrier configured by the MAC CE. C in fig. 6 and 7 represents a target time unit, d represents a third time unit, e represents a second time unit, f represents a first time unit, and g represents a fourth time unit.

Here, the preset value referred to in the drawings of the embodiment of the present invention is the preset value time described above.

Specifically, in the embodiment of the present invention, consider that: in the prior art, the effective time of the MAC CE is determined according to the time position of the PUCCH corresponding to the HARQ-ACK of the PDSCH of the MAC CE at the UE side, and the effective time of the MAC CE in the uplink direction and the downlink direction is not distinguished.

Therefore, the invention considers the situation that the air propagation delay between the network equipment and the UE is larger in the mobile communication system of the non-ground network, and determines the effective time of the MAC CE in the uplink direction and the downlink direction according to the time position of the PUCCH corresponding to the HARQ-ACK of the PDSCH of the MAC CE and the uplink timing advance and the preset value used when the UE sends the HARQ-ACK, thereby solving the problem that the effective state of the MAC CE information is possibly inconsistent in part of time periods at the UE side and the network equipment side and ensuring the correct communication process.

Further, for the case that the subcarrier intervals of at least two of the PDSCH carrying the MAC CE, the downlink or uplink carrier configured by the MAC CE, and the carrier carrying the HARQ-ACK of MAC CE PDSCH are different, the reference point for determining the effective time of the MAC CE is defined by: the time position of the corresponding PUCCH for transmitting HARQ-ACK is determined together with the uplink timing advance used when the UE transmits HARQ-ACK and a preset value. The time of the downstream validation of the MAC CE is located after the reference point, and the MAC CE configures the first time unit of the downstream carrier. The time of the uplink validation of the MAC CE is located after the reference point, and the MAC CE configures the first time unit of the uplink carrier. In this way, the gNB and the UE have the same understanding on the downlink time unit and the uplink time unit which are effective on the MAC CE, and the communication process can be ensured to be correctly performed.

From the above, the scheme provided by the implementation of the invention mainly relates to:

1. corresponding to example one

Terminal equipment side:

the first time unit is a first uplink time unit after a first reference time, the second time unit is a first downlink time unit after a second reference time, the first reference time is located after a target time unit, the first reference time is a time when the sum of the uplink timing advance and a preset value time is added, and the second reference time is located when the preset value time is elapsed after the receiving time of the PUCCH of the HARQ-ACK corresponding to the PDSCH carrying the MAC CE.

Network equipment side:

transmitting a PDSCH carrying an MAC CE, and determining a PUCCH for receiving HARQ-ACK corresponding to the PDSCH in a third time unit; determining that the effective time of the MAC CE information in the uplink direction is positioned in a fourth time unit, and/or determining that the effective time of the MAC CE information in the downlink direction is positioned in a second time unit; the fourth time unit is the first uplink time unit after the third time unit is subjected to the addition of the uplink timing advance and the preset value time, and the second time unit is the first downlink time unit after the preset time after the third time unit.

Optionally, the network device uses the configuration information of the MAC CE through downlink transmission. The MAC CE includes any one of the following: the PUCCH spatial relationship activates or deactivates MAC CEs, TCI status of UE-specific PDSCH activates or deactivates MAC CEs, TCI status of UE-specific PDCCH indicates MAC CEs, semi-persistent CSI-RS activates or deactivates MAC CEs, CSI-IM (interference measurement) resource sets activate or deactivate MAC CEs.

2. Corresponding to example two

Terminal equipment side:

The first time unit is a first uplink time unit after a first reference time, the second time unit is a downlink time unit of which the first receiving time after the second reference time is not earlier than the first time unit, the first reference time is located after the target time unit and is the time when the sum of the uplink timing advance and the preset value time is passed, and the second reference time is located at the time when the preset value time is passed after the receiving time of the PUCCH of the HARQ-ACK corresponding to the PDSCH carrying the MAC CE.

Network equipment side:

transmitting a PDSCH carrying an MAC CE, and determining a PUCCH for receiving HARQ-ACK corresponding to the PDSCH in a third time unit; determining to transmit information according to the configuration of the MAC CE information from a second time unit and/or to receive information according to the configuration of the MAC CE information from a fourth time unit; the second time unit is the first downlink time unit after the third time unit passes through the preset value time, and the fourth time unit is the first uplink time unit after the third time unit passes through the uplink timing advance plus the preset value time.

3. Corresponding to example three

The effective time of the MAC CE information in the downlink is a first downlink time unit, namely a second time unit, which is positioned after the second reference time in the downlink carrier configured by the MAC CE. The effective time of the uplink of the MAC CE information is a first uplink time unit, namely a first time unit, which is positioned after a first reference time in the uplink carrier configured by the MAC CE. The MAC CE configured uplink carrier and the MAC CE configured downlink carrier are paired carriers.

The embodiment of the invention also provides a terminal device, as shown in fig. 8, including:

a first determining module 81, configured to determine, according to the target time unit and a preset parameter, effective time information of a MAC CE;

the target PDSCH is the received PDSCH carrying the MAC CE;

According to the terminal equipment provided by the embodiment of the invention, the effective time information of the media access control element (MAC CE) is determined according to the third time unit and the preset parameters; the third time unit is a time unit for receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a Physical Downlink Shared Channel (PDSCH) of a target; the target PDSCH is the transmitted PDSCH carrying the MAC CE; the preset parameters comprise preset value time or uplink timing advance and preset value time; the effective time of the MAC CE determined by the network equipment can be matched with the terminal equipment side, so that correct communication and system efficiency between the network equipment and the terminal equipment are ensured, and the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art is well solved.

Wherein the first determining module includes: a first determining submodule, configured to determine a first time unit for starting to transmit uplink information according to the MAC CE; the first time unit is a first uplink time unit after a first reference time, the first reference time is a time located at a first time length after the target time unit, and the first time length is equal to the sum of the uplink timing advance and a preset value time.

Wherein the first determining module includes: a second determining submodule, configured to determine a second time unit when to start receiving downlink information according to the MAC CE; the second time unit is a first downlink time unit after a second reference time, where the second reference time is a time located at a second duration after a receiving time of a physical uplink control channel PUCCH of the HARQ-ACK corresponding to the target PDSCH, and the second duration is equal to the preset value time.

The implementation embodiments of the information confirmation method are applicable to the embodiments of the terminal equipment, and the same technical effects can be achieved.

The embodiment of the invention also provides a terminal device which comprises a memory, a processor and a computer program which is stored in the memory and can run on the processor; the processor implements the processes of the information confirmation method embodiment on the terminal device side when executing the program, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Preferably, referring to fig. 9, an embodiment of the present invention further provides a terminal device, including: a processor 91 and a transceiver 92;

The processor 91 is configured to determine, according to the target time unit and a preset parameter, effective time information of a MAC CE;

wherein the target time unit is a time unit for transmitting a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to a target physical downlink shared channel PDSCH through the transceiver 92;

the target PDSCH is the PDSCH carrying the MAC CE received through the transceiver 92;

The processor may also be configured to implement the functions implemented by all the modules in the above-described terminal device embodiment, and achieve the same technical effects as those achieved by the above-described terminal device embodiment.

The terminal device in the embodiment of the present invention may be a mobile phone (or a mobile phone), or other devices capable of sending or receiving wireless signals, including a user equipment (terminal), a Personal Digital Assistant (PDA), a wireless modem, a wireless communication device, a handheld device, a laptop, a cordless phone, a Wireless Local Loop (WLL) station, a CPE or Mifi capable of converting a mobile signal into a wifi signal, a smart home appliance, or other devices capable of spontaneously communicating with a mobile communication network without manipulation by a person, and the like.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the embodiment of the method for confirming information on the terminal device side, and can achieve the same technical effects, and in order to avoid repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

The embodiment of the invention also provides a network device, as shown in fig. 10, including:

a second determining module 101, configured to determine, according to the third time unit and a preset parameter, validation time information of a medium access control element MAC CE;

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

According to the network equipment provided by the embodiment of the invention, the effective time information of the media access control element (MAC CE) is determined according to the third time unit and the preset parameters; the third time unit is a time unit for receiving hybrid automatic repeat request acknowledgement (HARQ-ACK) corresponding to a Physical Downlink Shared Channel (PDSCH) of a target; the target PDSCH is the transmitted PDSCH carrying the MAC CE; the preset parameters comprise preset value time or uplink timing advance and preset value time; the effective time of the MAC CE determined by the network equipment can be matched with the terminal equipment side, so that correct communication and system efficiency between the network equipment and the terminal equipment are ensured, and the problem of abnormal communication caused by the fact that the effective time of the terminal equipment and the network equipment aiming at the MAC CE possibly has mismatch in the prior art is well solved.

Wherein the second determining module includes: a third determining submodule, configured to determine a second time unit at which to start transmitting information according to the MAC CE; the second time unit is a first downlink time unit after a third reference time, the third reference time is a time located at a third time length after the third time unit, and the third time length is equal to the preset value time.

Wherein the second determining module includes: a fourth determining sub-module for determining a fourth time unit for starting to receive information according to the MAC CE; the fourth time unit is a first uplink time unit after a fourth reference time, the fourth reference time is a time located at a fourth time length after the third time unit, and the fourth time length is equal to the sum of the uplink timing advance and a preset value time.

The implementation embodiments of the information confirmation method are applicable to the embodiments of the network device, and the same technical effects can be achieved.

The embodiment of the invention also provides a network device which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor; the processor implements the processes of the information confirmation method embodiment on the network device side when executing the program, and can achieve the same technical effects, so that repetition is avoided, and no further description is given here.

Preferably, referring to fig. 11, an embodiment of the present invention further provides a network device, including: a processor 111 and a transceiver 112;

the processor 111 is configured to determine, according to the third time unit and a preset parameter, validation time information of a MAC CE;

wherein the third time unit is a time unit for receiving, by the transceiver 112, a hybrid automatic repeat request acknowledgement HARQ-ACK corresponding to the target physical downlink shared channel PDSCH;

the target PDSCH is a PDSCH carrying the MAC CE transmitted through the transceiver 112;

The processor may also be configured to implement the functions implemented by all the modules in the above-described network device embodiment, and achieve the same technical effects as those achieved by the above-described network device embodiment.

The network device in the embodiment of the present invention may be a base station (Base Transceiver Station, BTS) in global mobile communications (Global System of Mobile communication, GSM for short) or code division multiple access (Code Division Multiple Access, CDMA for short), a base station (NodeB, NB for short) in wideband code division multiple access (Wideband Code Division Multiple Access, WCDMA for short), an evolved base station (Evolutional Node B, eNB or eNodeB) in LTE, a relay station or access point, or a base station in a future 5G network, etc., which are not limited herein.

The embodiment of the invention also provides a computer readable storage medium, on which a computer program is stored, which when executed by a processor, implements the processes of the above embodiment of the method for confirming information on the network device side, and can achieve the same technical effects, and for avoiding repetition, the description is omitted here. Wherein the computer readable storage medium is selected from Read-Only Memory (ROM), random access Memory (Random Access Memory, RAM), magnetic disk or optical disk.

It should be noted that many of the functional components described in this specification are referred to as modules/sub-modules in order to more particularly emphasize their implementation independence.

In embodiments of the invention, the modules/sub-modules may be implemented in software for execution by various types of processors. An identified module of executable code may, for instance, comprise one or more physical or logical blocks of computer instructions which may, for instance, be organized as an object, procedure, or function. Nevertheless, the executables of an identified module need not be physically located together, but may comprise disparate instructions stored in different bits which, when joined logically together, comprise the module and achieve the stated purpose for the module.

Indeed, a module of executable code may be a single instruction, or many instructions, and may even be distributed over several different code segments, among different programs, and across several memory devices. Likewise, operational data may be identified within modules and may be embodied in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed over different locations including over different storage devices.

Where a module may be implemented in software, taking into account the level of existing hardware technology, a module may be implemented in software, and one skilled in the art may, without regard to cost, build corresponding hardware circuitry, including conventional Very Large Scale Integration (VLSI) circuits or gate arrays, and existing semiconductors such as logic chips, transistors, or other discrete components, to achieve the corresponding functions. A module may also be implemented in programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices or the like.

While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and changes can be made without departing from the principles of the present invention, and such modifications and changes should also be considered as being within the scope of the present invention.

A1. An information confirmation method applied to a terminal device, comprising:

The target PDSCH is the received PDSCH carrying the MAC CE;

A2. The method for confirming information according to claim A1, wherein the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes:

A3. The method of information confirmation according to claim A2, wherein the first time unit is a first uplink time unit located after a first reference time in uplink carriers configured by the MAC CE.

A4. The method for confirming information according to claim A1, wherein the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes:

A5. The method of information confirmation of claim A4 wherein the first downlink time unit has a reception time not earlier than the first time unit;

A6. The method of information confirmation according to claim A4, wherein the second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

A7. The information confirmation method of claim A1, wherein the MAC CE comprises any one of the following:

B8. An information confirmation method applied to a network device, comprising:

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

B9. The method for confirming information according to claim B8, wherein the determining the effective time information of the MAC CE according to the third time unit and the preset parameter includes:

B10. The method for confirming information according to claim B8 or B9, wherein determining the validation time information of the medium access control element MAC CE according to the third time unit and the preset parameter includes:

B11. The information confirmation method of claim B8, wherein the MAC CE includes any one of the following:

C12. A terminal device, comprising:

the target PDSCH is the received PDSCH carrying the MAC CE;

C13. The terminal device of claim C12, wherein the first determining module comprises:

C14. The terminal device of claim C13, wherein the first time unit is a first uplink time unit located after a first reference time in uplink carriers configured by the MAC CE.

C15. The terminal device of claim C12, wherein the first determining module comprises:

C16. The terminal device of claim C15, wherein the first downlink time unit has a reception time not earlier than the first time unit;

C17. The terminal device of claim C15, wherein the second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

C18. The terminal device according to claim C12, wherein the MAC CE comprises any one of:

D19. A network device, comprising:

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

D20. The network device of claim D19, wherein the second determining module comprises:

D21. The network device of claim D19 or D20, wherein the second determining module comprises:

D22. The network device of claim D19, wherein the MAC CE comprises any one of:

E23. A terminal device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method according to any one of claims A1 to A7, characterized in that the processor implements the steps of the information confirmation method when executing the program.

F24. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the method according to any one of claims B8 to B11, characterized in that the processor, when executing the program, implements the steps of the information confirmation method.

G25. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the information confirmation method according to any one of claims A1-A7 and B8-B11.

Claims

1. An information confirmation method applied to a terminal device, comprising:

according to the target time unit and the preset parameter, determining the effective time information of the media access control element (MAC CE), including: determining a first time unit for starting to send uplink information according to the MAC CE; the first time unit is a first uplink time unit after a first reference time, the first reference time is a time located at a first time length after the target time unit, and the first time length is equal to the sum of the uplink timing advance and a preset value time;

the target PDSCH is the received PDSCH carrying the MAC CE;

2. The method of claim 1, wherein the first time unit is a first uplink time unit located after a first reference time in uplink carriers configured by the MAC CE.

3. The method for confirming information according to claim 1, wherein the determining the effective time information of the MAC CE according to the target time unit and the preset parameter includes:

4. The information confirmation method of claim 3 wherein the first downlink time unit has a reception time not earlier than the first time unit;

5. The information confirmation method of claim 3 wherein the second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

6. The information confirmation method of claim 1, wherein the MAC CE includes any one of the following:

7. An information confirmation method applied to a network device, comprising:

According to the third time unit and the preset parameter, determining the effective time information of the media access control element (MAC CE) comprises the following steps: determining a second time unit for starting to send information according to the MAC CE; the second time unit is a first downlink time unit after a third reference time, the third reference time is a time located at a third time length after the third time unit, and the third time length is equal to the preset value time;

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

8. The method for confirming information according to claim 7, wherein the determining the effective time information of the MAC CE according to the third time unit and the preset parameter includes:

9. The information confirmation method of claim 7, wherein the MAC CE includes any one of the following:

10. A terminal device, comprising:

the target PDSCH is the received PDSCH carrying the MAC CE;

the preset parameters comprise preset value time or uplink timing advance and preset value time;

the first determining module includes:

11. The terminal device of claim 10, wherein the first time unit is a first uplink time unit located after a first reference time in uplink carriers configured by the MAC CE.

12. The terminal device of claim 10, wherein the first determining module comprises:

13. The terminal device of claim 12, wherein the first downlink time unit has a reception time not earlier than the first time unit;

14. The terminal device of claim 12, wherein the second time unit is a first downlink time unit located after a second reference time in the downlink carrier configured by the MAC CE.

15. The terminal device according to claim 10, wherein the MAC CE comprises any one of:

16. A network device, comprising:

the target PDSCH is the transmitted PDSCH carrying the MAC CE;

the second determining module includes:

17. The network device of claim 16, wherein the second determination module comprises:

18. The network device of claim 16, wherein the MAC CE comprises any one of:

19. A terminal device comprising a memory, a processor and a computer program stored on the memory and executable on the processor; the method according to any one of claims 1 to 6, characterized in that the processor, when executing the program, implements the steps of the information confirmation method.

20. A network device comprising a memory, a processor, and a computer program stored on the memory and executable on the processor; the method according to any one of claims 7 to 9, characterized in that the processor, when executing the program, implements the steps of the information confirmation method.

21. A computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the steps of the information confirmation method according to any one of claims 1-9.