WO2020200165A1

WO2020200165A1 - Power control method and device

Info

Publication number: WO2020200165A1
Application number: PCT/CN2020/082064
Authority: WO
Inventors: 姜炜; 纪子超; 彭淑燕; 刘思綦; 刘是枭
Original assignee: 维沃移动通信有限公司
Priority date: 2019-04-02
Filing date: 2020-03-30
Publication date: 2020-10-08
Also published as: CN111601374B; CN111601374A

Abstract

Disclosed in the embodiments of the present disclosure are a power control method and a device. The method is executed by a terminal device, and comprises: determining a target time domain resource from at least two time domain resources, said at least two time domain resources comprising a first time domain resource and a second time domain, the first time domain resource and the second time domain resource corresponding to different power control modes; and, on the basis of the power control mode corresponding to the target time domain resource, controlling transmission power.

Description

Power control method and equipment

Cross references to related applications

This application claims the priority of Chinese Patent Application No. 201910262602.7 filed in China on April 2, 2019, the entire content of which is incorporated herein by reference.

Technical field

The embodiments of the present disclosure relate to the communication field, and in particular, to a power control method and device.

Background technique

Sidelink (sidelink) refers to a link between terminal devices for direct communication without network devices. Long Term Evolution (LTE) sidelink is based on broadcast communication. Although it can be used for basic security communication of vehicle to everything (V2X), it is not suitable for more advanced V2X services. The New Radio (NR) system will support more advanced sidelink transmission designs, such as unicast, multicast or multicast, etc., so as to support more comprehensive service types. For terminal equipment, data transmission between terminal equipment can be carried out through unicast, multicast or broadcast; at the same time, data transmission between terminal equipment and network equipment is carried out through uplink/downlink. In related technologies, the above-mentioned multiple applications During the data transmission process in the scene, it is necessary to perform power control on the terminal device. However, the power control method in the related technology is relatively single and cannot adapt to diversified application scenarios.

Summary of the invention

The purpose of the embodiments of the present disclosure is to provide a power control method and device to solve the problem that the power control method in the related technology is single and cannot adapt to diversified application scenarios.

In a first aspect, a power control method is provided, the method is executed by a terminal device, and the method includes:

The target time domain resource is determined from at least two time domain resources, where the at least two time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource Domain resources correspond to different power control methods;

The transmission power is controlled according to the power control mode corresponding to the target time domain resource.

In a second aspect, a power control method is provided, the method is executed by a network device, and the method includes:

Sending configuration information, where the configuration information is used for the terminal device to configure the time domain resource pattern;

Wherein, the time domain resource pattern includes at least two types of time domain resources, the at least two types of time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource Domain resources correspond to different power control methods.

In a third aspect, a terminal device is provided, and the terminal device includes:

A resource determination module, configured to determine a target time domain resource from at least two time domain resources, where the at least two time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource Corresponding to a different power control method from the second time domain resource;

The power control module is used to control the transmission power according to the power control mode corresponding to the target time domain resource.

In a fourth aspect, a network device is provided, and the network device includes:

A sending module, configured to send configuration information, where the configuration information is used for the terminal device to configure the time domain resource pattern;

In a fifth aspect, a terminal device is provided. The terminal device includes a processor, a memory, and a program that is stored on the memory and can run on the processor. The program is executed by the processor to achieve The steps of the method described in the first aspect.

In a sixth aspect, a network device is provided. The network device includes a processor, a memory, and a program that is stored on the memory and can run on the processor. The program is executed by the processor to achieve The steps of the method described in the second aspect.

In a seventh aspect, a computer-readable storage medium is provided, and a computer program is stored on the computer-readable storage medium. When the computer program is executed by a processor, the steps of the method described in the first and second aspects are implemented .

In some embodiments of the present disclosure, since at least two different types/types of time domain resources are provided, and the first time domain resources and the second time domain resources correspond to different power control methods, the terminal device is performing data During transmission, the target time domain resource can be determined from the aforementioned at least two time domain resources, and the transmission power can be controlled according to the power control mode corresponding to the target time domain resource. Some embodiments of the present disclosure define different power control methods through different types/types of time domain resources. The power control methods are diverse and flexible, and can be widely adapted to diverse application scenarios.

Description of the drawings

The drawings described here are used to provide a further understanding of the application and constitute a part of the application. The exemplary embodiments and descriptions of the application are used to explain the application and do not constitute an improper limitation of the application. In the attached picture:

Fig. 1 is a schematic flowchart of a power control method according to an embodiment of the present disclosure;

2 to 5 are schematic diagrams of time-domain resource pattern formats in multiple embodiments according to the present disclosure;

Fig. 6 is a schematic flowchart of a power control method according to another embodiment of the present disclosure;

Fig. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure;

Fig. 8 is a schematic structural diagram of a network device according to an embodiment of the present disclosure;

Fig. 9 is a schematic structural diagram of a terminal device according to another embodiment of the present disclosure; and

Fig. 10 is a schematic structural diagram of a network device according to another embodiment of the present disclosure.

detailed description

In order to make the purpose, technical solutions, and advantages of the present application clearer, the technical solutions of the present application will be described clearly and completely in conjunction with specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of this application.

It should be understood that the technical solutions of some embodiments of the present disclosure can be applied to various communication systems, such as: Long Term Evolution (LTE) sidelink system, New Radio (NR) sidelink system, or for subsequent evolution communication system.

In some embodiments of the present disclosure, terminal devices may include, but are not limited to, mobile stations (Mobile Station, MS), mobile terminals (Mobile Terminal), mobile phones (Mobile Telephone), User Equipment (UE), mobile phones ( handset), road side unit (Road Side Unit, RSU), portable equipment (portable equipment), vehicle (vehicle), etc. The terminal device can be connected to one or more core networks via a radio access network (RAN) For communication, for example, the terminal device can be a mobile phone (or called a "cellular" phone), a computer with wireless communication function, etc. The terminal device can also be a portable, pocket-sized, handheld, built-in computer or vehicle-mounted mobile device .

In some embodiments of the present disclosure, a network device is a device deployed in a wireless access network to provide wireless communication functions for terminal devices. The network device may be a base station, and the base station may include various forms of macro base stations, micro base stations, relay stations, and access points. In systems that use different wireless access technologies, the names of devices with base station functions may be different. For example, in an LTE network, it is called an evolved NodeB (evolved NodeB, eNB, or eNodeB), and in a third generation (3rd Generation, 3G) network, it is called a Node B (Node B), or in a subsequent evolved communication system. Network equipment, etc., however, the wording does not constitute a restriction.

As shown in FIG. 1, an embodiment of the present disclosure provides a power control method 100, which may be executed by a terminal device, and includes the following steps:

S102: Determine the target time domain resource from at least two kinds of time domain resources.

Wherein, the above-mentioned at least two kinds of time domain resources include at least a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource correspond to different power control methods (procedures).

Optionally, before the execution of S102, the terminal device may first determine the time domain resource format pattern, where the time domain resource pattern includes the above-mentioned at least two time domain resources. Therefore, in this step, the terminal device may determine based on the time domain resource pattern Target time domain resource.

The above-mentioned time domain resource pattern includes at least the aforementioned first time domain resource and second time domain resource. The first time domain resource corresponds to the first power control mode, the second time domain resource corresponds to the second power control mode, and the first power control The method is different from the second power control method.

As shown in Figure 2, Figure 2 is a schematic diagram of the format of a time-domain resource pattern. The time-domain resource pattern includes two time-domain resources, namely resource R1 and resource R2. Among them, resource R1 and resource R2 can be called Two types/kinds of time domain resources. The resource R1 corresponds to the first power control mode, the resource R2 corresponds to the second power control mode, and the first power control mode is different from the second power control mode. For example, the first power control mode is based on the maximum transmission power and the second power control mode The control method is transmission power transmission determined according to the sidelink path loss, etc.

It should be noted that the at least two time domain resources mentioned in S102 may also include more types of time domain resources, for example, a third time domain resource, a fourth time domain resource, and so on. In an optional implementation manner, each type of time domain resource corresponds to a power control mode, and different types of time domain resources correspond to different power control modes.

It can be understood that, in other embodiments, two or more different types of time domain resources may correspond to the same power control method, and/or one type of time domain resource may correspond to multiple different power control methods. and many more.

In this embodiment, S102 may specifically determine the target time domain resource from the aforementioned time domain resource pattern according to the service type and service type of the data to be sent. For example, for the sidelink broadcast service, in order to enable more receiving end terminal devices to maintain higher reception quality, this step can be determined from the time domain resource pattern as resource R1, and the power control method corresponding to resource R1 can be maximum transmission Power transmission; for example, for sidelink unicast services, and the quality of service (QoS) of the data to be sent requires high, in order to ensure the receiving quality of the receiving end, this step can be determined from the time domain resource pattern as a resource R2, the power control mode corresponding to resource R2 may be transmission power transmission determined according to the sidelink path loss.

In an optional implementation manner, the time domain resource pattern includes resource R1, resource R2, resource R3, resource R4, and resource R5; among them,

The power transmission mode corresponding to resource R1 is: transmission according to the maximum transmission power or preset constant transmission power;

The power transmission mode corresponding to resource R2 is: transmission power determined according to the sidelink path loss;

The power transmission mode corresponding to resource R3 is: transmission power transmission determined according to the downlink path loss;

The power transmission mode corresponding to resource R4 is: transmission according to the smaller of the transmission power determined by the sidelink path loss and the transmission power determined by the downlink path loss; and

The power transmission mode corresponding to resource R5 is: transmission according to the larger value of the transmission power determined by the sidelink path loss and the transmission power determined by the downlink path loss.

Optionally, as an embodiment, the at least two time domain resources mentioned in S102 correspond to at least two different power control modes in a one-to-one correspondence, that is, the power control modes corresponding to different types of time domain resources are different.

Optionally, the power control parameters (such as open-loop power target value and path loss compensation factor, etc.) of the above-mentioned different power control methods can be independently configured, and different power control methods can also correspond to different power control parameters ( value).

S104: Control the transmission power according to the power control mode corresponding to the target time domain resource.

The target time domain resource is determined through the above S102. In this step, when the target time domain resource is determined, the transmission power can be controlled by the power control method corresponding to the target time domain resource to perform data (for example, including: channel, signal, etc.) transmission.

For example, as shown in Fig. 2, the type of the target time domain resource determined in S102 is R1, and S104 can be used on the first time domain resource R1 among the five time domain resources R1 shown in Fig. The power control mode corresponding to the domain resource R1 controls the transmission power, and then transmits data.

In the power control method provided by some embodiments of the present disclosure, the data sent at the foregoing transmission power may include at least one of the following:

Physical Sidelink Control Channel (PSCCH);

Physical Sidelink Share Channel (PSSCH);

Physical Sidelink Feedback Channel (PSFCH);

Physical Sidelink Broadcast Channel (PSBCH);

Demodulation Reference Signal (Demodulation Reference Signal, DMRS);

Phase-Tracking Reference Signal (PTRS);

Channel State Information Reference Signal (Channel State Information Reference Signal, CSI-RS);

Synchronization reference signal; and

Synchronization signal block (Synchronization Signal&PBCH Block, SSB).

Based on the above solutions provided by some embodiments of the present disclosure, high-power regions and low-power regions can also be divided in the time domain in the form of resource patterns, that is, the high-power regions and the low-power regions respectively correspond to different power control methods. In this way, in the sidelink communication system, the receiving end terminal equipment that requires high sidelink quality, the transmitting end terminal equipment can transmit in the high-power area to ensure the quality of sidelink transmission and reception; the terminal equipment that requires high Uu service quality, the transmitting end terminal equipment It is sent in low-power area to reduce the interference of sidelink on the uplink. Some embodiments of the present disclosure can realize system-level interference coordination, and can improve the overall performance of the communication system.

In S102 of the foregoing embodiment, it is mentioned that the terminal device can determine the target time domain resource from at least two time domain resources included in the time domain resource pattern. The following will divide into several embodiments to describe the specific real-time mode.

1) The terminal device determines the target time domain resource from the time domain resource pattern according to the auxiliary information.

The above-mentioned auxiliary information may include at least one of the following: service type (data to be sent); service period; service packet size; sidelink load; channel busy ratio (CBR)/channel occupancy ratio (CR) ); unicast/broadcast/multicast service ratio or quantity; QoS; service priority; service delay; service reliability; geographic location information of the terminal device; and the mobile speed of the terminal device.

For example, the terminal device selects the resource R1 according to the broadcast service; selects the resource R2 according to the unicast service; or selects the resource R1 or the resource R2 according to the QoS of the service, and so on.

2) The terminal device determines the target time domain resource from the time domain resource pattern according to the received instruction information.

Before the implementation of this embodiment, the terminal device may also receive indication information from the network device. The indication information may be used for the terminal device to determine the target time domain resource from at least two time domain resources included in the time domain resource pattern.

3) The terminal device determines the target time domain resource from the time domain resource pattern according to the type of data to be sent.

In this embodiment, some specific signals or channels are only transmitted on restricted specific types of time domain resources. For example, if the data to be sent is the secondary link synchronization resource block SL-SSB, the first time domain resource is determined from the time domain resource pattern, and the power control method corresponding to the first time domain resource includes: determining according to the downlink path loss The transmit power is sent.

For another example, if the data to be sent is PSCCH, the second time domain resource is determined from the time domain resource pattern, and the power control mode corresponding to the second time domain resource includes: sending according to the maximum transmission power or determining according to the sidelink path loss Transmit power transmission, the sidelink path loss in this example is determined according to the minimum communication distance/range.

For another example, if the data to be sent is a unicast PSSCH, the third time domain resource is determined from the time domain resource pattern, and the power control method corresponding to the third time domain resource includes: transmission power transmission determined according to the sidelink path loss.

For another example, if the data to be transmitted is a unicast PSFCH, the third time domain resource is determined from the time domain resource pattern, and the power control method corresponding to the third time domain resource includes: transmission power determined according to the sidelink path loss.

Optionally, in this embodiment, the unicast PSSCH and the corresponding unicast PSFCH use the same type of time domain resources. For example, if the type of time domain resource used by the unicast PSSCH sent by terminal device 1 to terminal device 2 is resource R1, the type of time domain resource used by the unicast PSFCH that terminal device 2 feeds back to terminal device 1 should also be resource R1 .

4) The terminal device determines the target time domain resource from the time domain resource pattern according to the type of time domain resource used for the initial data transmission.

This embodiment can be applied in the scenario of data retransmission. In this embodiment, the types of time domain resources used for initial data transmission and retransmission are the same.

In the foregoing several embodiments, the time domain resource pattern and the determined target time domain resource are mentioned. The following will be divided into several embodiments to introduce the time domain resource pattern and the determined target time domain resource in detail.

In one embodiment, the target time domain resource is included in a time domain resource format pattern, and the time domain resource pattern includes at least two time domain resources. For details, refer to FIG. 2.

In another embodiment, the target time domain resource is a resource pool, and at least two types of time domain resources mentioned in the foregoing, each time domain resource may be a resource pool.

In yet another embodiment, the target time domain resource is a target time domain resource pattern, and the at least two time domain resources mentioned above, each of which is a time domain resource pattern, and these multiple time domain resources The resource pattern is contained in the resource pool.

For the specific format of the time-domain resource pattern mentioned above, the time-domain unit (or time-domain granularity) of the time-domain resource pattern can be slot; frame frame; subframe subframe; symbol symbol; or time unit such as milliseconds.

A basic time domain unit of the determined target time domain resource, such as R1 in a square in Figure 2, can be a minimum time domain unit of the time domain resource pattern; or, a single target time domain resource determined A basic time domain unit of is a collection of multiple minimum time domain units of the time domain resource pattern. For example, the minimum time domain unit of the time domain resource pattern is a subframe, and a basic time domain unit of the target time domain resource is also a subframe; for another example, the minimum time domain unit of the time domain resource pattern is a time slot, and the target time domain resource A basic time domain unit of is a subframe, and a subframe includes two slots.

Regarding the time domain resource pattern in the foregoing embodiment, it may be specifically pre-configured; configured by a network device; or agreed upon by a protocol.

If the above-mentioned time-domain resource pattern is configured by a network device, before determining the target time-domain resource from at least two types of time-domain resources in S102 in the above-mentioned several embodiments, the following steps are further included:

Send auxiliary information, which is used for network equipment to configure the time domain resource pattern.

Specifically, the auxiliary information sent by the terminal device to the network device may include at least one of the following: service type; service cycle; service packet size; sidelink load; CBR/CR; unicast/broadcast/multicast service ratio or quantity; QoS; service priority; service delay; service reliability; geographic location information of the terminal device; and the mobile speed of the terminal device.

The power control methods introduced in the foregoing multiple embodiments are all directed to the transmitting end terminal device. Optionally, in the sidelink system, there may be different execution methods for the receiving end terminal device.

For different types of time domain resources, for example, the first time domain resource and the second time domain resource, the receiving end terminal device can perform radio link measurement respectively according to the first time domain resource and the second time domain resource, and according to the first time domain resource. The first measurement result is obtained by performing radio link measurement on the domain resource, and the second measurement result is obtained by performing radio link measurement on the second time domain resource. In addition, the first time domain resource and the second time domain resource respectively correspond to different measurement behaviors.

Optionally, the first time domain resource corresponds to the first measurement behavior, and the second time domain resource corresponds to the second measurement behavior, and the measurement parameters of the first measurement behavior and the measurement parameters of the second measurement behavior are independently configured.

The receiving end terminal device may also feed back or process the foregoing measurement results for different types of time domain resources respectively, and the measurement results may be at least one of the following:

Reference Signal Receiving Power (RSRP); Reference Signal Receiving Quality (RSRQ); Reference Signal Strength Indicator (RSSI); Signal to Noise Ratio (Signal to Interference plus Noise Ratio, SINR) ); and channel state information (Channel State Information, CSI).

Optionally, the thresholds corresponding to the first time domain resources and the second time domain resources are independently configured, and the thresholds include at least one of the following:

Radio Link Monitoring (RLM) threshold;

RSRP threshold; and

RSSI threshold.

Optionally, the receiving end terminal device may also perform wireless link detection according to the first time domain resource and the second time domain resource to obtain the first detection result and the second detection result, wherein the first time domain resource Corresponding to different detection behaviors from the second time domain resource; the receiving end terminal device may also feed back or process the first detection result and the second detection result respectively.

In order to describe in detail the power control method introduced in the above-mentioned examples of the present disclosure, the following will describe in conjunction with several specific embodiments.

Example one:

Taking a frame structure with a subcarrier interval of 15 KHz as an example, the time domain resource pattern time domain resource granularity is a time slot slot, and the time domain resource pattern includes two different types of time domain resources. An example of the format of the time domain resource pattern is as follows:

Pattern1, as shown in Figure 2, the first N slots are a kind of time domain resource R1, the last XN slots are another kind of time domain resource R2, X is the number of slots in a radio frame (such as SSSSSUUUUU, S can be used to represent The time domain resource for determining the transmission power according to the sidelink path loss, U can be used to indicate the time domain resource for determining the transmission power according to the downlink path loss).

Pattern2: As shown in Figure 3, the odd-numbered slot is a time domain resource R1, and the even-numbered slot is another time domain resource R2. (Such as SUSUSUSUSU). Of course, it is also possible that the even-numbered slot is the time domain resource R1, and the odd-numbered slot is the time domain resource R2.

Pattern3: As shown in Figure 4, the time domain resource pattern is an irregular format of any proportion. (Such as 3S2U1S4U).

In some embodiments of the present disclosure, the format of the time-domain resource pattern selectable by the terminal device is diverse, which is convenient for further application to diversified application scenarios.

Embodiment two:

The base station configures a time domain resource pattern for the terminal device based on the auxiliary information reported by the terminal equipment (UE). The format of the configured time domain resource pattern is shown in FIG. 5, and the auxiliary information is described in the foregoing embodiment.

In this embodiment, it is assumed that UE1 is very close to the base station, and the measured downlink path loss (pathloss) with the base station is small, 60dB; UE2 is far from the base station, and the measured pathloss with the base station is very large, 120dB ; UE3 is far from the base station, and the pathloss between UE3 and the base station is very large, which is 110dB.

At a certain moment, UE1 has a sidelink broadcast service, UE2 has an uplink service, UE3 has a sidelink unicast service, and the receiving UE is very close to the originating UE.

UE2 selects resources on resource R2 based on its own service type—Uu service, and adjusts its own transmission power based on the pathloss with the base station.

Based on its own service type-the sidelink broadcast service, UE1 selects the resources on R1 to send information with the maximum transmission power to ensure that more UEs can receive the sidelink broadcast service without causing excessive interference to the Uu on R2 .

UE3 selects the resource on resource R2 based on its own service type—sidelink unicast service, and performs power control. The power control method is as follows:

First, based on the downlink pathloss, adjust the transmit power P1=20dBm;

Then, based on the sidelink pathloss, UE3 performs power adjustment to obtain the transmission power P2=16dBm;

Choose min{P1,P2}=16dBm as the final transmission power.

Example three:

Taking a frame structure with a subcarrier interval of 15 KHz as an example, the time domain resource pattern time domain resource granularity is a time slot slot, and the time domain resource pattern includes two different types of time domain resources. An example of the format of the time domain resource pattern is shown in Figure 2. The time domain resource pattern is agreed upon by the agreement.

In this embodiment, the UE first determines the time domain resource pattern in a manner predefined by the protocol.

UE1 has a periodic broadcast service with high QoS requirements, and chooses to use the maximum transmission power of 23dBm for data transmission on the resource R1 to ensure the reception quality.

UE2 has a periodic unicast service with high QoS requirements, and chooses to perform open-loop power control based on the following formula on resource R1 to determine the transmission power,

In the above formula, P _CMAX is the maximum transmission power, 23dBm;

M is the allocated bandwidth, in the unit of resource block RB;

PL is sidelink pathloss;

P ₀ and α are indicated by high-level parameters, specifically the open-loop power target value and the sidelink pathloss compensation factor.

Embodiment four:

Taking a frame structure with a subcarrier interval of 15 KHz as an example, the time domain granularity of the time domain resource pattern is a time slot slot, and the time domain resource pattern includes two different types of time domain resources. An example of the format of the time domain resource pattern is shown in Figure 2. The time domain resource pattern is configured by network equipment.

UE1 has a broadcast service with low QoS requirements, and chooses to perform open-loop power control on resource R2 based on the pathloss with the base station to ensure that the interference to Uu is within a reasonable range.

UE2 has a unicast service with low QoS requirements. It chooses to jointly perform open-loop power control to determine the transmission power based on the pathloss and sidelink pathloss with the base station on the resource R2. The process is as follows:

First, based on the pathloss with the base station, UE2 adjusts the transmission power P1;

Then, UE2 uses the transmission power P1 to send, obtains sidelink pathloss based on the RSRP fed back by the receiving end, and performs power adjustment based on sidelink pathloss to obtain P2;

Choose min{P1,P2} as the final transmit power.

Embodiment five:

In the mode 2a mode (UE autonomous resource selection mode), both the high-power resource R1 and the low-power resource R2 receive UE detection, and the detection results of RSRP or RSSI on different types of time domain resources may vary greatly.

For UE1, the distance between UE2 and UE3 to UE1 is not much different, but UE2 transmits on resource R1 with a transmission power of 23dBm; UE3 transmits on resource R2 with a transmission power of 8dBm.

UE1 measured the RSRP of UE2 as -43dBm, and the RSRP of UE3 was -62dBm.

In this embodiment, different RSRP thresholds are configured for different types of time domain resources. For example, the RSRP threshold on resource R1 is -40dBm, the RSRP threshold on resource R2 is -60dBm, and the RSRP of UE2 is 3dBm lower than the threshold. The RSRP of UE3 is 2dBm lower than the threshold. Therefore, UE1 can estimate that the pathloss from UE2 and UE3 to UE1 is not much different.

The power control method according to some embodiments of the present disclosure has been described in detail above with reference to FIGS. 1 to 5. The power control method according to another embodiment of the present disclosure will be described in detail below in conjunction with FIG. 6. It can be understood that the interaction between the network device and the terminal device described from the network device side is the same as the description on the terminal device side in the method shown in FIG. 1, and to avoid repetition, the related description is appropriately omitted.

FIG. 6 is a schematic diagram of the implementation process of the power control method of some embodiments of the present disclosure, which can be applied to the network device side. As shown in FIG. 6, the method 600 includes:

S602: Send configuration information, which is used by the terminal device to configure the time domain resource pattern;

Optionally, in some embodiments of the present disclosure, the network device may also receive auxiliary information, and perform a domain resource pattern on the terminal device based on the auxiliary information. For a detailed description of the auxiliary information, please refer to the foregoing embodiments.

Optionally, in some embodiments of the present disclosure, the network device may also send indication information used to instruct the terminal device to determine the target time domain resource from at least two time domain resources in the time domain resource pattern.

The power control method according to some embodiments of the present disclosure is described in detail above with reference to Figs. 1 to 6. The terminal device according to some embodiments of the present disclosure will be described in detail below in conjunction with FIG. 7.

Fig. 7 is a schematic structural diagram of a terminal device according to some embodiments of the present disclosure. As shown in FIG. 7, the terminal device 700 includes:

The resource determining module 702 may be used to determine a target time domain resource from at least two time domain resources, where the at least two time domain resources include a first time domain resource and a second time domain resource. Domain resources and the second time domain resources correspond to different power control modes;

The power control module 704 may be used to control the transmission power according to the power control mode corresponding to the target time domain resource.

Optionally, as an embodiment, the power control modes corresponding to the first time domain resource and the second time domain resource include the following two:

Send according to the maximum transmission power or preset constant transmission power;

Transmission based on the transmission power determined by the sidelink path loss;

Transmission according to the transmission power determined by the downlink path loss;

Transmit according to the smaller of the transmit power determined by the sidelink path loss and the transmit power determined by the downlink path loss; and

Send according to the larger value of the transmit power determined by the sidelink path loss and the transmit power determined by the downlink path loss.

Optionally, as an embodiment, the at least two time-domain resources and at least two different power control modes are in one-to-one correspondence.

Optionally, as an embodiment, the target time domain resource is included in a time domain resource format pattern, and the time domain resource pattern includes the at least two time domain resources; or

The target time domain resource includes a target resource pool, and the at least two types of time domain resources are resource pools; or

The target time domain resource includes a target time domain resource pattern, the at least two time domain resources are respectively at least two time domain resource patterns, and the at least two time domain resource patterns are included in a resource pool.

Optionally, as an embodiment, the target time domain resource is included in a time domain resource pattern, and the time domain unit of the time domain resource pattern is:

Time slot slot; frame frame; subframe subframe; symbol symbol; or milliseconds.

Optionally, as an embodiment, the target time domain resource includes a minimum time domain unit of the time domain resource pattern; or

The target time domain resource includes a set of multiple minimum time domain units of the time domain resource pattern.

Optionally, as an embodiment, the target time domain is included in a time domain resource pattern, and the resource determining module 702 may also be used to determine the time domain resource pattern.

Optionally, as an embodiment, the time domain resource pattern is:

Pre-configured

Network equipment configuration; or

As agreed in the agreement.

Optionally, as an embodiment, the time domain resource pattern is configured by a network device, and the terminal device 700 further includes a sending module, which can be used for:

Sending first auxiliary information, where the first auxiliary information is used by the network device to configure the time domain resource pattern.

Optionally, as an embodiment, the resource determining module 702 may be configured to determine the target time domain resource from at least two types of time domain resources according to the second auxiliary information.

Optionally, as an embodiment, the first auxiliary information and/or the second auxiliary information includes at least one of the following:

Service type; service cycle; service package size; sidelink load; CBR/CR; unicast/broadcast/multicast service ratio or quantity; QoS; service priority; service delay; service reliability; geographic location of the terminal equipment Location information; and the moving speed of the terminal device.

Optionally, as an embodiment, the time domain resource pattern is configured by a network device, and the terminal device 700 further includes a receiving module, which can be used for:

Receiving instruction information, where the instruction information is used by the terminal device to determine the target time domain resource from the at least two types of time domain resources;

Wherein, the determining the target time domain resource from the at least two kinds of time domain resources includes: determining the target time domain resource from the at least two kinds of time domain resources according to the indication information.

Optionally, as an embodiment, the resource determining module 702 may be configured to determine the first time domain resource from at least two time domain resources if the data to be sent is a secondary link synchronization resource block SL-SSB, The power control manner corresponding to the first time domain resource includes: transmission power transmission determined according to the downlink path loss;

If the data to be sent is PSCCH, the second time domain resource is determined from at least two time domain resources, and the power control mode corresponding to the second time domain resource includes: sending according to the maximum transmission power or sending according to the sidelink path loss Power transmission, the sidelink path loss is determined according to the minimum communication distance/range; or

If the data to be sent is a unicast PSSCH or a unicast PSFCH, the third time domain resource is determined from at least two time domain resources, and the power control method corresponding to the third time domain resource includes: transmission determined according to the sidelink path loss Power transmission.

Optionally, as an embodiment, the types of time domain resources used by the unicast PSSCH and the corresponding unicast PSFCH are the same.

Optionally, as an embodiment, the resource determining module 702 may be configured to determine the target time domain resource from at least two types of time domain resources according to the type of time domain resource used for initial transmission of target data;

Wherein, the types of time domain resources used for the initial transmission and retransmission of the target data are the same.

Optionally, as an embodiment, the first time domain resource corresponds to a first power control mode, the second time domain resource corresponds to a second power control mode, and the first power control mode and the second power control mode The control mode corresponds to different power control parameter values.

Optionally, as an embodiment, the terminal device 700 further includes a measurement module, which may be configured to perform radio link measurement according to the first time domain resource and the second time domain resource, and obtain the first measurement results respectively And the second measurement result;

Wherein, the first time domain resource and the second time domain resource correspond to different measurement behaviors.

Optionally, as an embodiment, the first time domain resource corresponds to a first measurement behavior, and the second time domain resource corresponds to a second measurement behavior;

The measurement parameters of the first measurement behavior and the measurement parameters of the second measurement behavior are independently configured.

Optionally, as an embodiment, the terminal device 700 further includes a feedback processing module, which may be used to feed back or process the first measurement result and the second measurement result, respectively.

Optionally, as an embodiment, the first measurement result and/or the second measurement result include at least one of the following:

RSRP; RSRQ; RSSI; SINR; and CSI.

Optionally, as an embodiment, the threshold values respectively corresponding to the first time domain resource and the second time domain resource are independently configured, and the threshold value includes at least one of the following:

RLM threshold;

RSRP threshold; and

RSSI threshold.

Optionally, as an embodiment, the terminal device 700 further includes a detection module, which may be used to perform radio link detection respectively according to the first time domain resource and the second time domain resource to obtain the first detection The result and the second detection result, wherein the first time domain resource and the second time domain resource correspond to different detection behaviors; the first detection result and the second detection result are fed back or processed respectively.

Optionally, as an embodiment, the data sent at the transmission power includes at least one of the following:

PSCCH;

PSSCH;

PSFCH;

PSBCH;

DMRS;

PTRS;

CSI-RS;

Synchronization reference signal; and

SSB.

The terminal device 700 according to some embodiments of the present disclosure may refer to the flow of the method 100 corresponding to some embodiments of the present disclosure, and each unit/module in the terminal device 700 and other operations and/or functions described above are used to implement the method. The corresponding process in 100 can achieve the same or equivalent technical effect. For brevity, it will not be repeated here.

Fig. 8 is a schematic structural diagram of a network device according to some embodiments of the present disclosure. As shown in FIG. 8, the network device 800 includes:

The sending module 802 may be used to send configuration information, where the configuration information is used for the terminal device to configure the time domain resource pattern;

Optionally, in some embodiments of the present disclosure, as shown in FIG. 8, the network device 800 may further include a receiving module 804 for receiving auxiliary information, and performing a domain resource pattern on the terminal device based on the auxiliary information, regarding the auxiliary information For detailed description, please refer to the previous embodiment.

Optionally, in some embodiments of the present disclosure, the sending module 802 may also be used to send indication information when the terminal device determines a target from at least two time domain resources in the time domain resource pattern. Domain resources.

The network device 800 according to some embodiments of the present disclosure may refer to the flow of the method 600 corresponding to some embodiments of the present disclosure, and each unit/module in the network device 800 and other operations and/or functions described above are used to implement the method. The corresponding process in 600 can achieve the same or equivalent technical effect. For brevity, it will not be repeated here.

Fig. 9 is a block diagram of a terminal device according to another embodiment of the present disclosure. The terminal device 900 shown in FIG. 9 includes: at least one processor 901, a memory 902, at least one network interface 904, and a user interface 903. The various components in the terminal device 900 are coupled together through the bus system 905. It can be understood that the bus system 905 is used to implement connection and communication between these components. In addition to the data bus, the bus system 905 also includes a power bus, a control bus, and a status signal bus. However, for the sake of clear description, various buses are marked as the bus system 905 in FIG. 9.

Wherein, the user interface 903 may include a display, a keyboard, a pointing device (for example, a mouse, a trackball), a touch panel or a touch screen, etc.

It can be understood that the memory 902 in some embodiments of the present disclosure may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (Read-Only Memory, ROM), programmable read-only memory (Programmable ROM, PROM), erasable programmable read-only memory (Erasable PROM, EPROM), and electrically available Erase programmable read-only memory (Electrically EPROM, EEPROM) or flash memory. The volatile memory may be a random access memory (Random Access Memory, RAM), which is used as an external cache. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (Static RAM, SRAM), dynamic random access memory (Dynamic RAM, DRAM), synchronous dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (Double Data Rate SDRAM, DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (Enhanced SDRAM, ESDRAM), Synchronous Link Dynamic Random Access Memory (Synchlink DRAM, SLDRAM) And Direct Rambus RAM (DRRAM). The memory 902 of the system and method described in some embodiments of the present disclosure is intended to include, but is not limited to, these and any other suitable types of memory.

In some embodiments, the memory 902 stores the following elements, executable modules or data structures, or their subsets, or their extended sets: operating system 9021 and application programs 9022.

Among them, the operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 9022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., which are used to implement various application services. A program that implements methods of some embodiments of the present disclosure may be included in the application 9022.

In some embodiments of the present disclosure, the terminal device 900 further includes: a program that is stored in the memory 902 and can run on the processor 901, and the program is executed by the processor 901 to implement the steps of the method 100 as follows.

The methods disclosed in some embodiments of the present disclosure described above may be applied to the processor 901 or implemented by the processor 901. The processor 901 may be an integrated circuit chip with signal processing capability. In the implementation process, the steps of the foregoing method may be completed by an integrated logic circuit of hardware in the processor 901 or instructions in the form of software. The aforementioned processor 901 may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other Programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps, and logical block diagrams disclosed in some embodiments of the present disclosure can be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like. The steps of the method disclosed in some embodiments of the present disclosure may be directly embodied as being executed and completed by a hardware decoding processor, or executed and completed by a combination of hardware and software modules in the decoding processor. The software module may be located in a mature computer readable storage medium in the field, such as random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers. The computer-readable storage medium is located in the memory 902, and the processor 901 reads information in the memory 902, and completes the steps of the foregoing method in combination with its hardware. Specifically, a computer program is stored on the computer-readable storage medium, and when the computer program is executed by the processor 901, each step of the above-mentioned method 100 embodiment is implemented.

It can be understood that the embodiments described in some embodiments of the present disclosure may be implemented by hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, modules, units, sub-modules, sub-units, etc. can be implemented in one or more application specific integrated circuits (ASICs), digital signal processors (Digital Signal Processing, DSP), digital signal processing equipment ( DSP Device, DSPD), Programmable Logic Device (PLD), Field-Programmable Gate Array (Field-Programmable Gate Array, FPGA), general-purpose processors, controllers, microcontrollers, microprocessors, Other electronic units or combinations thereof that perform the functions described in this application.

For software implementation, the technology described in some embodiments of the present disclosure can be implemented by modules (for example, procedures, functions, etc.) that perform the functions described in some embodiments of the present disclosure. The software code can be stored in the memory and executed by the processor. The memory can be implemented in the processor or external to the processor.

The terminal device 900 can implement the various processes implemented by the terminal device in the foregoing embodiments, and can achieve the same or equivalent technical effects. To avoid repetition, details are not described herein again.

Please refer to FIG. 10. FIG. 10 is a structural diagram of a network device applied in some embodiments of the present disclosure, which can implement the details of the method embodiment 600 and achieve the same effect. As shown in FIG. 10, the network device 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, and a bus interface, where:

In some embodiments of the present disclosure, the network device 1000 further includes: a program that is stored in the memory 1003 and can be run on the processor 1001, and the program is executed by the processor 1001 to implement the steps of the method 600.

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 1001 and various circuits of the memory represented by the memory 1003 are linked together. The bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further descriptions are provided herein. The bus interface provides the interface. The transceiver 1002 may be a plurality of elements, that is, including a transmitter and a receiver, and provide a unit for communicating with various other devices on a transmission medium.

The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 can store data used by the processor 1001 when performing operations.

Some embodiments of the present disclosure further provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, each process of the above method embodiment 100 and method embodiment 600 is implemented. And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here. Wherein, the computer readable storage medium, such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc.

It should be noted that in this article, the terms "include", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, It also includes other elements not explicitly listed, or elements inherent to the process, method, article, or device. If there are no more restrictions, the element defined by the sentence "including a..." does not exclude the existence of other identical elements in the process, method, article or device that includes the element.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method of the above embodiments can be implemented by means of software plus the necessary general hardware platform. Of course, it can also be implemented by hardware, but in many cases the former is better.的实施方式。 Based on this understanding, the technical solution of the present disclosure essentially or the part that contributes to the existing technology can be embodied in the form of a software product, and the computer software product is stored in a storage medium (such as ROM/RAM, magnetic disk, The optical disc) includes several instructions to make a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) execute the methods described in the various embodiments of the present disclosure.

The embodiments of the present disclosure are described above with reference to the accompanying drawings, but the present disclosure is not limited to the above-mentioned specific embodiments. The above-mentioned specific embodiments are only illustrative and not restrictive. Those of ordinary skill in the art are Under the enlightenment of the present disclosure, many forms can be made without departing from the purpose of the present disclosure and the scope of protection of the claims, all of which fall within the protection of the present disclosure.

Claims

A power control method, executed by a terminal device, includes:

The target time domain resource is determined from at least two time domain resources, where the at least two time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource Domain resources correspond to different power control methods;

The transmission power is controlled according to the power control mode corresponding to the target time domain resource.
The method according to claim 1, wherein the power control modes corresponding to the first time domain resource and the second time domain resource include the following two:

Send according to the maximum transmission power or preset constant transmission power;

Transmission based on the transmission power determined by the sidelink path loss;

Transmission according to the transmission power determined by the downlink path loss;

Transmit according to the smaller of the transmit power determined by the sidelink path loss and the transmit power determined by the downlink path loss; and

Send according to the larger value of the transmit power determined by the sidelink path loss and the transmit power determined by the downlink path loss.
The method according to claim 1, wherein the at least two time domain resources and at least two different power control methods are in one-to-one correspondence.
The method of any one of claims 1 to 3, wherein:

The target time domain resource is included in a time domain resource format pattern, and the time domain resource pattern includes the at least two time domain resources;

The target time domain resource includes a target resource pool, and the at least two types of time domain resources are resource pools; or

The target time domain resource includes a target time domain resource pattern, the at least two time domain resources are respectively at least two time domain resource patterns, and the at least two time domain resource patterns are included in a resource pool.
The method according to claim 4, wherein the target time domain resource is included in a time domain resource pattern, and the time domain unit of the time domain resource pattern is:

Time slot slot; frame frame; subframe subframe; symbol symbol; or milliseconds.
The method of claim 5, wherein:

The target time domain resource includes a minimum time domain unit of the time domain resource pattern; or

The target time domain resource includes a set of multiple minimum time domain units of the time domain resource pattern.
The method according to claim 4, wherein the target time domain is included in a time domain resource pattern, and before the target time domain resource is determined from at least two kinds of time domain resources, the method further comprises:

Determine the time domain resource pattern.
The method according to claim 7, wherein the time domain resource pattern is:

Pre-configured

Network equipment configuration; or

As agreed in the agreement.
The method according to claim 8, wherein the time domain resource pattern is configured by a network device, and before determining the target time domain resource from at least two kinds of time domain resources, the method further comprises:

Sending first auxiliary information, where the first auxiliary information is used by the network device to configure the time domain resource pattern.
The method according to claim 1, wherein said determining the target time domain resource from at least two kinds of time domain resources comprises:

According to the second auxiliary information, the target time domain resource is determined from at least two kinds of time domain resources.
The method according to claim 9 or 10, wherein the first auxiliary information and/or the second auxiliary information includes at least one of the following:

Service type; service cycle; service package size; sidelink load; channel busy rate CBR/channel occupancy rate CR; unicast/broadcast/multicast service ratio or quantity; service quality QoS; service priority; service delay; service reliability性; geographic location information of the terminal device; and the moving rate of the terminal device.
The method according to claim 1, wherein before said determining the target time domain resource from the at least two kinds of time domain resources, the method further comprises:

Receiving indication information, where the indication information is used by the terminal device to determine the target time domain resource from the at least two kinds of time domain resources;

Wherein, the determining the target time domain resource from the at least two kinds of time domain resources includes: determining the target time domain resource from the at least two kinds of time domain resources according to the instruction information.
The method according to claim 1, wherein said determining the target time domain resource from at least two kinds of time domain resources comprises:

If the data to be sent is the secondary link synchronization resource block SL-SSB, the first time domain resource is determined from at least two time domain resources, and the power control method corresponding to the first time domain resource includes: determining according to the downlink path loss The transmit power of transmission;

If the data to be sent is the physical side link control channel PSCCH, the second time domain resource is determined from at least two time domain resources, and the power control mode corresponding to the second time domain resource includes: sending according to the maximum transmission power or according to The transmission power is determined by the sidelink path loss, and the sidelink path loss is determined according to the minimum communication distance/range; or

If the data to be sent is a unicast physical side link data channel PSSCH or a unicast physical side link feedback channel PSFCH, a third time domain resource is determined from at least two time domain resources, and the third time domain resource corresponds to The power control method includes: transmission power determined according to the sidelink path loss.
The method of claim 13, wherein:

The unicast PSSCH and the corresponding unicast PSFCH use the same type of time domain resources.
The method according to claim 1, wherein said determining the target time domain resource from at least two kinds of time domain resources comprises:

Determine the target time domain resource from at least two kinds of time domain resources according to the type of time domain resource used for the initial transmission of target data;

Wherein, the types of time domain resources used for the initial transmission and retransmission of the target data are the same.
The method according to claim 1, wherein the first time domain resource corresponds to a first power control method, the second time domain resource corresponds to a second power control method, and the first power control method corresponds to the second power control method. The second power control mode corresponds to different power control parameter values.
The method of claim 1, further comprising:

Performing radio link measurement according to the first time domain resource and the second time domain resource to obtain a first measurement result and a second measurement result respectively;

Wherein, the first time domain resource and the second time domain resource correspond to different measurement behaviors.
The method according to claim 17, wherein the first time domain resource corresponds to a first measurement behavior, and the second time domain resource corresponds to a second measurement behavior;

The measurement parameters of the first measurement behavior and the measurement parameters of the second measurement behavior are independently configured.
The method of claim 17, further comprising:

Feed back or process the first measurement result and the second measurement result respectively.
The method according to claim 19, wherein the first measurement result and/or the second measurement result includes at least one of the following:

Reference signal received power RSRP; reference signal received quality RSRQ; reference signal strength indicator RSSI; signal-to-noise ratio SINR; and channel state information CSI.
The method according to claim 17, wherein the threshold values respectively corresponding to the first time domain resources and the second time domain resources are independently configured, and the threshold values include at least one of the following:

RLM threshold for wireless link monitoring;

RSRP threshold; and

RSSI threshold.
The method of claim 1, further comprising:

Perform radio link detection respectively according to the first time domain resource and the second time domain resource to obtain a first detection result and a second detection result, wherein the first time domain resource and the second time domain resource Domain resources correspond to different detection behaviors;

Feed back or process the first detection result and the second detection result respectively.
The method according to claim 1, wherein the data transmitted at the transmission power includes at least one of the following:

PSCCH;

PSSCH;

PSFCH;

Physical side link broadcast channel PSBCH;

Demodulation reference signal DMRS;

Phase tracking reference signal PTRS;

Channel state information reference signal CSI-RS;

Synchronization reference signal; and

SSB.
A power control method, executed by a network device, includes:

Sending configuration information, where the configuration information is used for the terminal device to configure the time domain resource pattern;

Wherein, the time domain resource pattern includes at least two types of time domain resources, the at least two types of time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource Domain resources correspond to different power control methods.
A terminal device, including:

A resource determination module, configured to determine a target time domain resource from at least two time domain resources, where the at least two time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource Corresponding to a different power control method from the second time domain resource;

The power control module is used to control the transmission power according to the power control mode corresponding to the target time domain resource.
A network device, including:

A sending module, configured to send configuration information, where the configuration information is used for the terminal device to configure the time domain resource pattern;

Wherein, the time domain resource pattern includes at least two types of time domain resources, the at least two types of time domain resources include a first time domain resource and a second time domain resource, and the first time domain resource and the second time domain resource Domain resources correspond to different power control methods.
A terminal device, comprising: a memory, a processor, and a program stored on the memory and capable of running on the processor, and the program is executed by the processor to implement any one of claims 1 to 23 The steps of the method described in item.
A network device, comprising: a memory, a processor, and a program stored on the memory and capable of running on the processor, the program being executed by the processor to implement the method according to claim 24 step.
A computer-readable storage medium, wherein a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 24 are realized.