WO2019191922A1

WO2019191922A1 - Uplink transmission method and apparatus, and storage medium

Info

Publication number: WO2019191922A1
Application number: PCT/CN2018/081840
Authority: WO
Inventors: 赵群; 江小威
Original assignee: 北京小米移动软件有限公司
Priority date: 2018-04-04
Filing date: 2018-04-04
Publication date: 2019-10-10
Also published as: CN110557978B; CN110557978A

Abstract

The present disclosure relates to the technical field of wireless communications and provides an uplink transmission method and apparatus, and a storage medium. The method comprises: in a random access process, when a target uplink resource overlapping a first physical random access channel (PRACH) opportunity exists in a time domain, determining a second PRACH opportunity, wherein when a random access preamble is transmitted using the second PRACH opportunity, a user equipment (UE) does not have target uplink transmission overlapping the second PRACH opportunity in the time domain, the target uplink transmission is another type of uplink transmission other than the transmission of the random access preamble, the first PRACH opportunity is the top PRACH opportunity in at least one PRACH opportunity available for the UE in the time domain, and the target uplink resource is an uplink resource of the UE for performing the target uplink transmission; and transmitting the random access preamble by using the second PRACH opportunity. The technical solution provided by embodiments of the disclosure can improve the success rate of random accesses.

Description

Uplink transmission method, device and storage medium

Technical field

The present disclosure relates to the field of wireless communications technologies, and in particular, to an uplink transmission method, apparatus, and storage medium.

Background technique

In a wireless communication system, when an out-of-synchronization occurs between a base station and a UE (User Equipment), the UE needs to perform random access. When performing random access, the UE may send a random access preamble to the base station by using a Physical Random Access Channel (PRACH) opportunity, so that the base station completes random access according to the random access preamble, where A wireless communication system can generally periodically configure multiple PRACH opportunities in the time domain, and the UE can transmit a random access preamble to the base station using a PRACH opportunity located in the time domain after the initiation of the random access time.

In the related art, the UE may select one of the PRACH opportunities available in the time domain to send a random access preamble from the PRACH opportunity available in the time domain. However, in actual applications, it is likely that the PRACH opportunity overlaps with the uplink resources used by the UE for uplink transmission in the time domain. In this case, the UE needs to allocate the available transmit power to the random access at the same time. The preamble and the uplink transmission are prone to insufficient transmission power of the random access preamble, and the insufficient transmission power of the random access preamble may affect the success rate of the random access.

Summary of the invention

The embodiments of the present disclosure provide an uplink transmission method, device, and storage medium, which can improve the success rate of random access.

According to a first aspect of the embodiments of the present disclosure, an uplink transmission method is provided, including:

In the random access procedure, when there is a target uplink resource that overlaps with the first physical random access channel PRACH opportunity in the time domain, determining a second PRACH opportunity, and transmitting a random access preamble through the second PRACH opportunity The user equipment UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than random access preamble transmission, the first The PRACH opportunity is the most advanced PRACH opportunity in the time domain of the at least one PRACH opportunity available to the UE, and the target uplink resource is an uplink resource used by the UE for target uplink transmission;

And transmitting, by the second PRACH opportunity, a random access preamble.

Optionally, the determining the second PRACH opportunity includes:

Determining, in the at least one PRACH opportunity available to the UE, the second PRACH opportunity, where the second PRACH opportunity does not overlap with any uplink resource used by the UE for performing target uplink transmission.

Optionally, the determining, by the at least one PRACH opportunity available to the UE, the second PRACH opportunity includes:

Determining at least one candidate PRACH opportunity in the at least one PRACH opportunity available to the UE, where the candidate PRACH opportunity does not overlap with any uplink resource used by the UE for performing target uplink transmission;

Determining, in the at least one candidate PRACH opportunity, one of the highest PRACH opportunities in the time domain as the second PRACH opportunity.

Optionally, the determining the second PRACH opportunity includes:

The UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.

Optionally, the prohibiting the UE from performing the target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity, includes:

When the transmission priority of the random access preamble is greater than the transmission priority of the target uplink transmission, the UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.

Optionally, the determining the second PRACH opportunity includes:

Disabling the UE to transmit a random access preamble by using the first PRACH opportunity, and initiating a new random access;

The second PRACH opportunity is determined when a new random access is made.

Optionally, the prohibiting the UE from transmitting a random access preamble by using the first PRACH opportunity, and initiating a new random access, includes:

When the transmission priority of the random access preamble is smaller than the transmission priority of the target uplink transmission, the UE is prohibited from transmitting the random access preamble through the first PRACH opportunity, and initiates a new random access.

Determining whether the available transmit power of the UE is greater than a preset power threshold;

When the available transmit power of the UE is not greater than the preset power threshold, the UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.

When the available transmit power of the UE is not greater than the preset power threshold, the UE is prohibited from transmitting a random access preamble through the first PRACH opportunity, and initiates a new random access.

Optionally, the method further includes:

And when the available transmit power of the UE is greater than the preset power threshold, the random access preamble is transmitted by using the first PRACH opportunity, and the target uplink transmission is performed by using the target uplink resource.

Optionally, the transmitting, by using the first PRACH opportunity, a random access preamble, and performing target uplink transmission by using the target uplink resource, including:

Comparing the transmission priority of the target uplink transmission with the transmission priority of the random access preamble;

According to the comparison result, the transmission power is allocated for the random access preamble and the target uplink transmission;

And transmitting, by using the first PRACH opportunity, a random access preamble based on the allocated transmit power, and performing target uplink transmission by using the target uplink resource.

Optionally, the determining the second PRACH opportunity includes:

Obtaining a current type of random access, where the type of random access includes a type of random access initiated by the UE and a type of random access initiated by the base station;

The second PRACH opportunity is determined according to the type of the random access.

Optionally, the determining the second PRACH opportunity includes:

Obtaining the type of the uplink transmission of the target;

Determining the second PRACH opportunity according to the type of the target uplink transmission.

Optionally, the determining the second PRACH opportunity includes:

Determining triggering uplink data, where the triggering uplink data is uplink data that triggers the UE to perform random access;

Comparing the transmission priority of the triggered uplink data with the transmission priority of the target uplink transmission;

The second PRACH opportunity is determined based on the comparison result.

According to a second aspect of the embodiments of the present disclosure, an uplink transmission apparatus is provided, including:

a determining module, configured to determine, during a random access procedure, a second PRACH opportunity to be transmitted through the second PRACH opportunity when there is a target uplink resource that overlaps with the first physical random access channel PRACH opportunity in the time domain When the preamble is randomly accessed, the user equipment UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than the random access preamble transmission. The first PRACH opportunity is a PRACH opportunity that is the highest in the time domain of the at least one PRACH opportunity that is available to the UE, and the target uplink resource is an uplink resource that is used by the UE for the target uplink transmission;

The first transmission module is configured to transmit a random access preamble by using the second PRACH opportunity.

Optionally, the determining module includes a first determining submodule, where the first determining submodule is configured to determine the second PRACH opportunity in the at least one PRACH opportunity available to the UE, where the second PRACH opportunity Any uplink resource used for performing the target uplink transmission with the UE does not overlap in the time domain.

Optionally, the first determining submodule is configured to determine, in the at least one PRACH opportunity available to the UE, at least one candidate PRACH opportunity, where the candidate PRACH opportunity is used for performing target uplink transmission with the UE. An uplink resource does not overlap in the time domain; and a PRACH opportunity that is the highest in the time domain among the at least one candidate PRACH opportunity is determined as the second PRACH opportunity.

Optionally, the determining module includes a second determining submodule, where the second determining submodule is configured to prohibit the UE from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as The second PRACH opportunity.

Optionally, the second determining submodule is configured to, when the transmission priority of the random access preamble is greater than the transmission priority of the target uplink transmission, prohibit the UE from performing target uplink transmission by using the target uplink resource, and Determining the first PRACH opportunity as the second PRACH opportunity.

Optionally, the determining module includes a third determining submodule, where the third determining submodule is configured to prohibit the UE from transmitting a random access preamble through the first PRACH opportunity, and initiate a new random access. The second PRACH opportunity is determined when a new random access is made.

Optionally, the third determining submodule is configured to, when the transmission priority of the random access preamble is smaller than the transmission priority of the target uplink transmission, prohibit the UE from transmitting the random access preamble by using the first PRACH opportunity. Code and initiate a new random access.

Optionally, the second determining submodule is configured to determine whether the available transmit power of the UE is greater than a preset power threshold; and when the available transmit power of the UE is not greater than the preset power threshold, prohibiting the The UE performs target uplink transmission by using the target uplink resource, and determines the first PRACH opportunity as the second PRACH opportunity.

Optionally, the third determining submodule is configured to determine whether the available transmit power of the UE is greater than a preset power threshold; and when the available transmit power of the UE is not greater than the preset power threshold, prohibiting the The UE transmits a random access preamble through the first PRACH opportunity and initiates a new random access.

Optionally, the device further includes a second transmission module, where the second transmission module is configured to: when the available transmit power of the UE is greater than the preset power threshold, transmit the random connection by using the first PRACH opportunity The preamble is input, and the target uplink transmission is performed by using the target uplink resource.

Optionally, the second transmission module is configured to compare a transmission priority of the target uplink transmission with a transmission priority of the random access preamble; and allocate a transmission power to the random access preamble and the target uplink transmission according to the comparison result. Transmitting, by the first PRACH opportunity, a random access preamble based on the allocated transmit power, and performing target uplink transmission by using the target uplink resource.

Optionally, the determining module includes a fourth determining submodule, where the fourth determining submodule is configured to acquire a current type of random access, where the type of the random access includes a type of the random access initiated by the UE. The type of random access initiated by the base station; determining the second PRACH opportunity according to the type of the random access.

Optionally, the determining module includes a fifth determining submodule, where the fifth determining submodule is configured to obtain the type of the target uplink transmission, and determine the second PRACH opportunity according to the type of the target uplink transmission.

Optionally, the determining module includes a sixth determining submodule, where the sixth determining submodule is configured to determine triggering uplink data, where the triggering uplink data is uplink data that triggers the UE to perform random access; Decoding a transmission priority of the uplink data and a transmission priority of the target uplink transmission; determining the second PRACH opportunity according to the comparison result.

According to a third aspect of the embodiments of the present disclosure, an uplink transmission apparatus is provided, including:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

And transmitting, by the second PRACH opportunity, a random access preamble.

According to a fourth aspect of the embodiments of the present disclosure, there is provided a computer readable storage medium having stored therein at least one instruction loaded by a processor and executed to implement any of the above first aspects The uplink transmission method.

The technical solutions provided by the embodiments of the present disclosure may include the following beneficial effects:

The UE determines a second PRACH opportunity and transmits a random access preamble through the second PRACH opportunity, in the process of the random access, when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, where When the UE transmits the random access preamble through the second PRACH opportunity, there is no target uplink transmission that overlaps with the second PRACH opportunity in the time domain, so that the UE can be prevented from simultaneously allocating the available transmit power to the random access. The preamble and the uplink transmission occur, which can ensure the transmission power of the random access preamble and improve the success rate of the random access.

The above general description and the following detailed description are intended to be illustrative and not restrictive.

DRAWINGS

The accompanying drawings, which are incorporated in the specification

FIG. 1 is a schematic diagram of an implementation environment, according to an exemplary embodiment.

FIG. 2 is a flowchart of an uplink transmission method according to an exemplary embodiment.

FIG. 3 is a flowchart of an uplink transmission method according to an exemplary embodiment.

FIG. 4 is a block diagram of an uplink transmission apparatus according to an exemplary embodiment.

FIG. 5 is a block diagram of an uplink transmission apparatus according to an exemplary embodiment.

FIG. 6 is a block diagram of an uplink transmission apparatus according to an exemplary embodiment.

detailed description

The embodiments of the present disclosure will be further described in detail below with reference to the accompanying drawings.

Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. The following description refers to the same or similar elements in the different figures unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with aspects of the present disclosure as detailed in the appended claims.

In a wireless communication system, when an out-of-synchronization occurs between a base station and a UE (User Equipment), the UE needs to perform random access. For example, when the UE sends an SR (Scheduling Request) to the base station because the uplink data needs to be transmitted, if the UE does not have a PUCCH (Physical Uplink Control Channel) resource available for transmitting the SR, Then the UE will perform random access.

In the related art, when performing random access, the UE may select one of the most advanced PRACH opportunities in the time domain from the available Random Access Channel (PRACH) opportunity (English: occasion). The preamble is randomly accessed, so that the base station completes random access according to the random access preamble. The PRACH opportunity available to the UE may be a PRACH opportunity that is located in the time domain after the initiation of the random access time in the plurality of PRACH opportunities periodically configured by the wireless communication system, or the PRACH opportunity available to the UE may be passed by the base station. At least one PRACH opportunity indicated by DCI (Downlink Control Information) or higher layer signaling.

For example, if the time at which the random access is initiated is time t, the PRACH opportunities a, b, and c after the time t in the time domain may be PRACH opportunities available to the UE. In the PRACH opportunities a, b, and c, the UE may The PRACH opportunity a, which is the highest in the time domain, is selected to transmit the random access preamble. For another example, the PRACH opportunities indicated by the base station include PRACH opportunities d, e, and f, which are PRACH opportunities available to the UE. In the PRACH opportunities d, e, and f, the UE may select the time domain. The top-most PRACH opportunity d transmits a random access preamble.

In practical applications, it is easy for the PRACH opportunity selected by the UE to overlap with the uplink resource used by the UE for uplink transmission, for example, the PRACH opportunity selected by the UE and the base station allocated to the UE for transmitting uplink communication data. The PUSCH (Physical Uplink Shared Channel) and the physical uplink shared channel are located in the same time slot. In this case, the UE needs to allocate the available transmit power to the random access preamble and the uplink transmission at the same time, which is easy to occur when the random access preamble transmission power is insufficient, and the random access preamble transmission Insufficient power can affect the success rate of random access.

An embodiment of the present disclosure provides an uplink transmission method. In the uplink transmission method, when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, the UE may determine the second PRACH. Opportunity, and transmitting a random access preamble by using a second PRACH opportunity, where the UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain when transmitting the random access preamble through the second PRACH opportunity, In this way, it is possible to prevent the UE from simultaneously allocating the available transmit power to the random access preamble and the uplink transmission, and then ensuring the transmit power of the random access preamble and improving the success rate of the random access.

The following describes an implementation environment involved in the uplink transmission method. As shown in FIG. 1, the implementation environment may include a base station 10 and a UE 20. The base station 10 and the UE 20 may be connected through a communication network. The UE 20 is any one of the cells served by the base station 10. The communication network may be a 5G (The Fifth Generation Mobile Communication Technology) communication network, or may be an LTE (Long Term Evolution) communication network, or other communication with the LTE communication network or 5G. Network-like communication network.

FIG. 2 is a flowchart of an uplink transmission method, which is used in the UE 20 shown in FIG. 1 according to an exemplary embodiment. As shown in FIG. 2, the uplink transmission method may include the following steps.

Step 201: In a random access procedure, when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, the UE determines the second PRACH opportunity.

The UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain when the second PRACH opportunity is used to transmit the random access preamble. The target uplink transmission is in addition to the random access preamble transmission. Other types of uplink transmission.

The first PRACH opportunity is the most advanced PRACH opportunity in the time domain of the at least one PRACH opportunity available to the UE, and the target uplink resource is an uplink resource used by the UE for the target uplink transmission.

Step 202: The UE transmits a random access preamble by using a second PRACH opportunity.

In summary, the uplink transmission method provided by the embodiment of the present disclosure determines that the second PRACH opportunity is determined by the UE when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain in the process of random access, and Transmitting a random access preamble by using the second PRACH opportunity, wherein when the UE transmits the random access preamble through the second PRACH opportunity, there is no target uplink transmission that overlaps with the second PRACH opportunity in the time domain, so that It can be avoided that the UE allocates the available transmit power to the random access preamble and the uplink transmission at the same time, and then can ensure the transmit power of the random access preamble and improve the success rate of the random access.

FIG. 3 is a flowchart of an uplink transmission method according to an exemplary embodiment. The uplink transmission method is used in the implementation environment shown in FIG. 1. As shown in FIG. 3, the uplink transmission method may include the following steps.

Step 301: When performing random access, the UE determines the first PRACH opportunity.

In actual applications, random access can be classified into two types according to different devices that initiate random access, and one type is a type in which the UE initiates random access. As the name suggests, random access of this type is initiated by the UE, and another The type is a type in which the base station initiates random access, and the type of random access is initiated by the base station.

When the type of the random access is the type of the random access initiated by the UE, the PRACH opportunity available to the UE may be a PRACH opportunity located in the time domain after the random access time is initiated among the plurality of PRACH opportunities configured by the wireless communication system. When the type of the random access is the type of the random access initiated by the base station, the PRACH opportunity available to the UE may be at least one PRACH opportunity indicated by the base station through DCI or higher layer signaling, where the higher layer signaling may be RRC (Radio Resource Control) , radio resource control) signaling, etc.

When performing random access, the UE may determine at least one PRACH opportunity that is available to itself, and determine a first PRACH opportunity from at least one PRACH opportunity available to the UE, where the first PRACH opportunity may be at least one PRACH opportunity available to the UE. The most advanced PRACH opportunity in the time domain.

Step 302: When there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, the UE determines the second PRACH opportunity.

The target uplink resource is an uplink resource used by the UE for the target uplink transmission. In other words, the target uplink resource is a resource for carrying a target uplink transmission of the UE. The target uplink transmission is other types of uplink transmissions other than the random access preamble transmission. In actual applications, the target uplink transmission may include uplink control information transmission, uplink communication data transmission, or uplink signal transmission, etc., where uplink control The information transmission may include a HARQ (Hybrid Automatic Repeat Request) transmission, an SR transmission, or a CSI (Channel State Information) transmission. The uplink signal transmission may include an uplink reference signal transmission or the like. The target uplink resource may be a PUCCH resource, a PUSCH resource, or the like.

In the related art, when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, the UE needs to allocate the available transmit power to the random access preamble and the target uplink transmission used by the target uplink resource, This easily leads to insufficient transmission power of the random access preamble, which in turn affects the success rate of random access. The overlapping of the first PRACH opportunity and the target uplink resource in the time domain means that there is an intersection between the time domain resource occupied by the first PRACH opportunity and the time domain resource occupied by the target uplink resource.

In order to avoid this, in the embodiment of the present disclosure, when there is a target uplink resource that overlaps with the first PRACH opportunity in the time domain, the UE may determine a second PRACH opportunity, where the random connection is transmitted through the second PRACH opportunity. When the preamble is input, the UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, so that the UE can be prevented from simultaneously allocating the available transmit power to the random access preamble and the uplink transmission. Then, the transmission power of the preamble can be guaranteed to be randomly accessed, and the success rate of random access is improved.

An embodiment of the present disclosure provides an exemplary way for three UEs to determine a second PRACH opportunity:

In a first mode, the UE determines the second PRACH opportunity in the at least one PRACH opportunity that is available to the UE, where the second PRACH opportunity determined by the UE is in the time domain with any uplink resource used by the UE for the target uplink transmission. None of them overlap.

Optionally, the UE may determine at least one uplink resource that is used by the UE to perform the target uplink transmission, and the UE may determine at least one PRACH opportunity that is available to the UE, and then the UE may determine at least one candidate PRACH opportunity from the at least one PRACH opportunity. The candidate PRACH opportunity does not overlap with any uplink resource used by the UE for performing the target uplink transmission, and the UE may determine, as the highest PRACH opportunity in the time domain, the first PRACH opportunity in the time domain. The second PRACH opportunity.

For example, the PRACH opportunities available to the UE may include PRACH opportunities a, b, c, and d, where PRACH opportunity a is located in time slot 1, PRACH opportunity b is located in time slot 2, PRACH opportunity c is located in time slot 3, PRACH opportunity b is located in the time slot 4, the PUSCH resource configured by the base station for transmitting the uplink communication data is located in the slot 1, and the PUCCH resource used by the UE to transmit the HARQ is located in the slot 2, and the UE may allocate the PUSCH resource with the PUSCH resource. The PRACH opportunity c and the PRACH opportunity d that do not overlap with the PUCCH resource in the time domain are determined as candidate PRACH opportunities, and then the UE may determine the PRACH opportunity c in the time domain in the PRACH opportunity c and the PRACH opportunity d For the second PRACH opportunity.

In the second mode, the UE may prohibit itself from performing target uplink transmission through the target uplink resource, and determine the first PRACH opportunity as the second PRACH opportunity.

In order to ensure the transmission power of the random access preamble, the UE may prohibit the target uplink transmission by the target uplink resource, so that when the UE transmits the random access preamble through the first PRACH opportunity, the UE does not need to allocate the available transmit power at the same time. The random access preamble and the target uplink transmission used by the target uplink resource are used to ensure the transmission power of the random access preamble.

For example, in the above example, the PRACH opportunity a may be the first PRACH opportunity, that is, the first PRACH opportunity is located in the slot 1, and the PUSCH resource configured by the base station for transmitting the uplink communication data for the UE is also located in the slot. In this case, in this case, the UE may prohibit transmission of uplink communication data through the PUSCH resource and determine the PRACH opportunity a as the second PRACH opportunity.

Optionally, the UE can compare the transmission priority of the target uplink transmission with the transmission priority of the random access preamble. It should be noted that the target uplink transmission refers to the target uplink used by the target uplink resource. transmission. When the transmission priority of the random access preamble is greater than the transmission priority of the target uplink transmission, the UE needs to preferentially guarantee the normal transmission of the random access preamble. In this case, the UE may select the second manner to determine the second. The PRACH opportunity, that is, the UE may prohibit itself from performing target uplink transmission through the target uplink resource, and determine the first PRACH opportunity as the second PRACH opportunity.

In the third mode, the UE prohibits itself from transmitting the random access preamble through the first PRACH opportunity and initiates a new random access. When performing new random access, the UE determines the second PRACH opportunity.

In order to prevent the UE from transmitting the available transmit power to the random access preamble and the target uplink transmission used by the target uplink resource, the UE may prohibit the transmission of the random access preamble by using the first PRACH opportunity. The preamble is accessed, and the UE can initiate a new random access. When performing new random access, the UE can determine the second PRACH opportunity. It should be noted that, in the new random access procedure, the manner in which the UE determines the second PRACH opportunity is the same as the technical process in the step 302 in this embodiment, and details are not described herein again.

For example, in the above example, the PRACH opportunity a may be the first PRACH opportunity, that is, the first PRACH opportunity is located in the slot 1, and the PUSCH resource configured by the base station for transmitting the uplink communication data for the UE is also located in the slot. In this case, the UE may prohibit transmission of the random access preamble through the PRACH opportunity a, and the UE may transmit the uplink communication data through the PUSCH resource, and then the UE may initiate a new random access, and perform a new During random access, the UE may determine the second PRACH opportunity.

Optionally, the UE can compare the transmission priority of the target uplink transmission with the transmission priority of the random access preamble. It should be noted that the target uplink transmission refers to the target uplink used by the target uplink resource. transmission. When the transmission priority of the random access preamble is smaller than the transmission priority of the target uplink transmission, the UE needs to preferentially perform the target uplink transmission. In this case, the UE may select the third manner to determine the second PRACH opportunity, that is, Yes, the UE may prohibit itself from transmitting the random access preamble through the first PRACH opportunity and initiate a new random access. When performing new random access, the UE determines the second PRACH opportunity.

It should be noted that in actual applications, there is a possibility that the available transmit power of the UE is greater than the preset power threshold. In this case, since the available transmit power of the UE is large, even if the UE needs to allocate the available transmit power at the same time, The UE can also guarantee the transmission power of the random access preamble to the random access preamble and the target uplink transmission used by the target uplink resource. At this time, the UE may not be sure of the second PRACH opportunity, but directly transmits the random access preamble through the first PRACH opportunity, and performs the target uplink transmission through the target uplink resource.

Optionally, in a case that the UE directly transmits the random access preamble through the first PRACH opportunity and performs the target uplink transmission by using the target uplink resource, the UE may use the random access preamble and the target uplink resource according to a certain policy. The target uplink transmission of the bearer allocates the transmission power. For example, in a possible implementation manner, the UE may compare the transmission priority of the target uplink transmission with the transmission priority of the random access preamble. It should be noted that the target uplink transmission herein may be the target uplink. The target uplink transmission used by the resource. Then, the UE may allocate transmit power for the random access preamble and the target uplink transmission according to the comparison result. Optionally, when the comparison result is that the transmission priority of the target uplink transmission is smaller than the transmission priority of the random access preamble, the UE may preferentially allocate the transmission power for the random access preamble, and allocate enough for the random access preamble. After the transmit power, the UE may allocate the remaining available transmit power to the target uplink transmission. When the comparison result is that the transmission priority of the target uplink transmission is greater than the transmission priority of the random access preamble, the UE may preferentially allocate the target uplink transmission. Transmit power, after allocating sufficient transmit power for the target uplink transmission, the UE may allocate the remaining available transmit power to the random access preamble.

After allocating the transmit power to the target uplink transmission used by the random access preamble and the target uplink resource, the UE may transmit the random access preamble through the first PRACH opportunity based on the allocated transmit power, and perform the target through the target uplink resource. Uplink transmission.

Of course, in the actual application, the available transmit power of the UE may not be greater than the preset power threshold. In this case, the UE may select the second mode or the third mode to determine the second PRACH opportunity, that is, The UE may prohibit the target uplink transmission by using the target uplink resource, and determine the first PRACH opportunity as the second PRACH opportunity, or the UE may prohibit itself from transmitting the random access preamble through the first PRACH opportunity, and initiate a new random. Access, when performing new random access, the UE determines the second PRACH opportunity.

It should be noted that, in the foregoing second mode and the third mode, the technical process of determining the second PRACH opportunity may be performed by the MAC (Media Access Control) layer of the UE, or may be performed by the physical of the UE. The layer performs the technical process of determining the second PRACH opportunity, which is not specifically limited in this embodiment of the present disclosure.

In the embodiment of the present disclosure, the UE may determine which one of the foregoing three manners is to determine the second PRACH opportunity according to the type of the random access, the type of the target uplink transmission, and the transmission priority of the triggered uplink data.

Optionally, in a possible implementation manner, the UE may determine, according to the type of the machine access, which one of the foregoing three manners is required to determine the second PRACH opportunity.

In this implementation manner, the UE may acquire the current type of random access. As described above, the type of the random access may include a type of the random access initiated by the UE and a type of the random access initiated by the base station, and the UE may The type of random access determines the second PRACH opportunity, that is, determines which of the above three ways to determine the second PRACH opportunity.

For example, when the type of the random access is the type of the random access initiated by the UE, the UE may select the first mode to determine the second PRACH opportunity, when the current random access type is the type of the random access initiated by the base station. The UE may select the first mode, the second mode, and the third mode to determine the second PRACH opportunity.

Optionally, in another possible implementation manner, the UE may determine, according to the type of the target uplink transmission, which one of the foregoing three manners is required to determine the second PRACH opportunity.

In this manner, the UE may acquire the type of the target uplink transmission. As described above, the type of the uplink transmission may include an uplink control information transmission type, an uplink communication data transmission type, and an uplink signal transmission type, and the UE may according to the target. The type of uplink transmission determines the second PRACH opportunity, that is, determines which of the above three modes is used to determine the second PRACH opportunity.

For example, when the type of the uplink transmission of the target is the uplink communication data transmission type, the UE may select the first manner to determine the second PRACH opportunity.

Optionally, in a further possible implementation manner, the UE may determine, according to the transmission priority of triggering the uplink data, which one of the foregoing three manners is required to determine the second PRACH opportunity.

The triggering uplink data refers to uplink data that triggers the UE to perform random access. For example, when the UE sends an SR to the base station because the uplink data 1 needs to be transmitted, if the UE does not have available PUCCH resources for transmitting the SR, the UE Random access is required. In this case, the uplink data 1 is the trigger uplink data.

In this manner, the UE may compare the transmission priority of the triggering uplink data with the transmission priority of the target uplink transmission, where the target uplink transmission is the uplink transmission used by the target uplink resource, and then the UE may determine according to the comparison result. The second PRACH opportunity, that is, determines which of the above three ways is used to determine the second PRACH opportunity. For example, when the transmission priority of the uplink data is greater than the transmission priority of the target uplink transmission, the UE needs to preferentially guarantee the transmission of the random access preamble. In this case, the UE may select the second manner to determine the second PRACH opportunity. When the transmission priority of the uplink data is not greater than the transmission priority of the target uplink transmission, the UE needs to perform the target uplink transmission preferentially. In this case, the UE may select the third manner to determine the second PRACH opportunity.

Step 303: The UE transmits a random access preamble by using a second PRACH opportunity.

FIG. 4 is a block diagram of an uplink transmission apparatus 400, which may be the UE 20 shown in FIG. 1, according to an exemplary embodiment. Referring to FIG. 4, the uplink transmission device 400 includes a determination module 401 and a first transmission module 402.

The determining module 401 is configured to: when a target uplink resource that overlaps with the first PRACH opportunity in the time domain exists in the random access procedure, determine a second PRACH opportunity, and transmit a random access preamble by using the second PRACH opportunity When the code is used, the UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than the random access preamble transmission, where the first PRACH opportunity is The most advanced PRACH opportunity in the time domain of the at least one PRACH opportunity available to the UE, the target uplink resource is an uplink resource used by the UE for the target uplink transmission.

The first transmission module 402 is configured to transmit a random access preamble by using the second PRACH opportunity.

In an embodiment of the present disclosure, the determining module 401 includes a first determining submodule;

The first determining submodule is configured to determine, in the at least one PRACH opportunity available to the UE, the second PRACH opportunity, where the second PRACH opportunity is used in the time domain with any uplink resource used by the UE for performing target uplink transmission. None of them overlap.

In an embodiment of the present disclosure, the first determining submodule is configured to determine, in the at least one PRACH opportunity available to the UE, at least one candidate PRACH opportunity, where the candidate PRACH opportunity is used for performing target uplink transmission with the UE. Any uplink resource does not overlap in the time domain; determining one of the at least one candidate PRACH opportunity that is the highest in the time domain as the second PRACH opportunity.

In an embodiment of the present disclosure, the determining module 401 includes a second determining submodule;

The second determining submodule is configured to prohibit the UE from performing target uplink transmission by using the target uplink resource, and determine the first PRACH opportunity as the second PRACH opportunity.

In an embodiment of the present disclosure, the second determining submodule is configured to, when the transmission priority of the random access preamble is greater than the transmission priority of the target uplink transmission, prohibit the UE from performing target uplink transmission by using the target uplink resource. And determining the first PRACH opportunity as the second PRACH opportunity.

In an embodiment of the present disclosure, the determining module 401 includes a third determining submodule;

The third determining submodule is configured to prohibit the UE from transmitting a random access preamble by using the first PRACH opportunity, and initiate a new random access; when performing a new random access, determining the second PRACH opportunity.

In an embodiment of the present disclosure, the third determining submodule is configured to, when the transmission priority of the random access preamble is smaller than the transmission priority of the target uplink transmission, prohibit the UE from transmitting the random connection by using the first PRACH opportunity. Enter the preamble and initiate a new random access.

In an embodiment of the present disclosure, the second determining submodule is configured to determine whether the available transmit power of the UE is greater than a preset power threshold; and when the available transmit power of the UE is not greater than the preset power threshold, prohibiting the The UE performs target uplink transmission by using the target uplink resource, and determines the first PRACH opportunity as the second PRACH opportunity.

In an embodiment of the present disclosure, the third determining submodule is configured to determine whether the available transmit power of the UE is greater than a preset power threshold; and when the available transmit power of the UE is not greater than the preset power threshold, prohibiting the The UE transmits a random access preamble through the first PRACH opportunity and initiates a new random access.

In an embodiment of the present disclosure, the determining module 401 includes a fourth determining submodule;

The fourth determining submodule is configured to obtain a current type of random access, where the type of the random access includes a type of the random access initiated by the UE and a type of the random access initiated by the base station; determining the type according to the type of the random access The second PRACH opportunity.

In an embodiment of the present disclosure, the determining module 401 includes a fifth determining submodule;

The fifth determining submodule is configured to obtain the type of the uplink transmission of the target, and determine the second PRACH opportunity according to the type of the uplink transmission of the target.

In an embodiment of the present disclosure, the determining module 401 includes a sixth determining submodule;

The sixth determining sub-module is configured to determine triggering uplink data, where the triggered uplink data is uplink data that triggers the UE to perform random access; and compares a transmission priority of the triggered uplink data with a transmission priority of the target uplink transmission; The second PRACH opportunity is determined based on the comparison result.

As shown in FIG. 5, the embodiment of the present disclosure further provides another uplink transmission device 500. The uplink transmission device 500 includes a second transmission module 403 in addition to the module included in the uplink transmission device 400.

In an embodiment of the present disclosure, the second transmission module 403 is configured to: when the available transmit power of the UE is greater than the preset power threshold, transmit a random access preamble through the first PRACH opportunity, and pass the target The uplink resource performs the target uplink transmission.

In an embodiment of the present disclosure, the second transmission module 403 is configured to compare the transmission priority of the target uplink transmission with the transmission priority of the random access preamble; and according to the comparison result, the random access preamble and the target The uplink transmission allocates a transmission power; the random access preamble is transmitted through the first PRACH opportunity based on the allocated transmission power, and the target uplink transmission is performed through the target uplink resource.

In summary, the uplink transmission apparatus provided by the embodiment of the present disclosure determines the second PRACH opportunity and passes the target uplink resource that overlaps with the first PRACH opportunity in the time domain during the random access process. The second PRACH opportunity transmits a random access preamble, wherein when the UE transmits the random access preamble through the second PRACH opportunity, there is no target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and thus, The UE can be prevented from simultaneously transmitting the available transmit power to the random access preamble and the uplink transmission, and then the transmit power of the random access preamble can be guaranteed, and the success rate of the random access is improved.

With regard to the apparatus in the above embodiments, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

FIG. 6 is a block diagram of an uplink transmission device 600, according to an exemplary embodiment. For example, device 600 can be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, a fitness device, a personal digital assistant, and the like.

Referring to Figure 6, device 600 can include one or more of the following components: processing component 602, memory 604, power component 606, multimedia component 608, audio component 610, input/output (I/O) interface 612, sensor component 614, And a communication component 616.

Processing component 602 typically controls the overall operation of device 600, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. Processing component 602 can include one or more processors 620 to execute instructions to perform all or part of the steps of the above described methods. Moreover, processing component 602 can include one or more modules to facilitate interaction between component 602 and other components. For example, processing component 602 can include a multimedia module to facilitate interaction between multimedia component 608 and processing component 602.

Memory 604 is configured to store various types of data to support operation at device 600. Examples of such data include instructions for any application or method operating on device 600, contact data, phone book data, messages, pictures, videos, and the like. The memory 604 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read only memory (EEPROM), erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Disk or Optical Disk.

Power component 606 provides power to various components of device 600. Power component 606 can include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for device 600.

The multimedia component 608 includes a screen between the device 600 and the user that provides an output interface. In some embodiments, the screen can include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen can be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touches, slides, and gestures on the touch panel. The touch sensor may sense not only the boundary of the touch or sliding action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. When the device 600 is in an operation mode, such as a shooting mode or a video mode, the front camera and/or the rear camera can receive external multimedia data. Each front and rear camera can be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 610 is configured to output and/or input an audio signal. For example, audio component 610 includes a microphone (MIC) that is configured to receive an external audio signal when device 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may be further stored in memory 604 or transmitted via communication component 616. In some embodiments, audio component 610 also includes a speaker for outputting an audio signal.

The I/O interface 612 provides an interface between the processing component 602 and the peripheral interface module, which may be a keyboard, a click wheel, a button, or the like. These buttons may include, but are not limited to, a home button, a volume button, a start button, and a lock button.

Sensor assembly 614 includes one or more sensors for providing device 600 with a status assessment of various aspects. For example, sensor assembly 614 can detect an open/closed state of device 600, a relative positioning of components, such as the display and keypad of device 600, and sensor component 614 can also detect a change in position of one component of device 600 or device 600. The presence or absence of contact by the user with the device 600, the orientation or acceleration/deceleration of the device 600 and the temperature change of the device 600. Sensor assembly 614 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. Sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 614 can also include an acceleration sensor, a gyro sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

Communication component 616 is configured to facilitate wired or wireless communication between device 600 and other devices. The device 600 can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, communication component 616 receives broadcast signals or broadcast associated information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 616 also includes a near field communication (NFC) module to facilitate short range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, device 600 may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable A gate array (FPGA), controller, microcontroller, microprocessor, or other electronic component implementation for performing the above methods.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium comprising instructions, such as a memory 604 comprising instructions executable by processor 620 of apparatus 600 to perform the above method. For example, the non-transitory computer readable storage medium may be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device.

In an exemplary embodiment, there is also provided a non-transitory computer readable storage medium, wherein when instructions in the storage medium are executed by a processor of a mobile terminal, enabling the mobile terminal to perform one of the embodiments of the present disclosure An uplink transmission method.

In an exemplary embodiment, there is also provided a computer readable storage medium, which is a non-transitory computer readable storage medium having stored therein a computer program, stored When the computer program is executed by the processing component, the uplink transmission method provided by the embodiment of the present disclosure can be implemented. For example, the uplink transmission method may be: when there is an overlap with the first PRACH opportunity in the time domain in the random access procedure. When the target uplink resource is used, the second PRACH opportunity is determined. When the random access preamble is transmitted through the second PRACH opportunity, the UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is In addition to the random access preamble transmission, the first PRACH opportunity is the most advanced PRACH opportunity in the time domain among the at least one PRACH opportunity available to the UE, and the target uplink resource is for the UE. An uplink resource required for the target uplink transmission; the random access preamble is transmitted by the second PRACH opportunity.

Other embodiments of the present disclosure will be apparent to those skilled in the <RTIgt; The present application is intended to cover any variations, uses, or adaptations of the present disclosure, which are in accordance with the general principles of the disclosure and include common general knowledge or common technical means in the art that are not disclosed in the present disclosure. . The specification and examples are to be regarded as illustrative only,

It is to be understood that the invention is not limited to the details of the details and The scope of the disclosure is to be limited only by the appended claims.

Claims

An uplink transmission method, characterized in that the method comprises:

In the random access procedure, when there is a target uplink resource that overlaps with the first physical random access channel PRACH opportunity in the time domain, determining a second PRACH opportunity, and transmitting a random access preamble through the second PRACH opportunity The user equipment UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than random access preamble transmission, the first The PRACH opportunity is the most advanced PRACH opportunity in the time domain of the at least one PRACH opportunity available to the UE, and the target uplink resource is an uplink resource used by the UE for target uplink transmission;

And transmitting, by the second PRACH opportunity, a random access preamble.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

Determining, in the at least one PRACH opportunity available to the UE, the second PRACH opportunity, where the second PRACH opportunity does not overlap with any uplink resource used by the UE for performing target uplink transmission.
The method according to claim 2, wherein the determining the second PRACH opportunity in the at least one PRACH opportunity available to the UE comprises:

Determining at least one candidate PRACH opportunity in the at least one PRACH opportunity available to the UE, where the candidate PRACH opportunity does not overlap with any uplink resource used by the UE for performing target uplink transmission;

Determining, in the at least one candidate PRACH opportunity, one of the highest PRACH opportunities in the time domain as the second PRACH opportunity.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

The UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.
The method according to claim 4, wherein the prohibiting the UE from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity comprises:

When the transmission priority of the random access preamble is greater than the transmission priority of the target uplink transmission, the UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

Disabling the UE to transmit a random access preamble by using the first PRACH opportunity, and initiating a new random access;

The second PRACH opportunity is determined when a new random access is made.
The method according to claim 6, wherein the prohibiting the UE from transmitting a random access preamble through the first PRACH opportunity and initiating a new random access comprises:

When the transmission priority of the random access preamble is smaller than the transmission priority of the target uplink transmission, the UE is prohibited from transmitting the random access preamble through the first PRACH opportunity, and initiates a new random access.
The method according to claim 4, wherein the prohibiting the UE from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity comprises:

Determining whether the available transmit power of the UE is greater than a preset power threshold;

When the available transmit power of the UE is not greater than the preset power threshold, the UE is prohibited from performing target uplink transmission by using the target uplink resource, and determining the first PRACH opportunity as the second PRACH opportunity.
The method according to claim 6, wherein the prohibiting the UE from transmitting a random access preamble through the first PRACH opportunity and initiating a new random access comprises:

Determining whether the available transmit power of the UE is greater than a preset power threshold;

When the available transmit power of the UE is not greater than the preset power threshold, the UE is prohibited from transmitting a random access preamble through the first PRACH opportunity, and initiates a new random access.
The method according to claim 8 or 9, wherein the method further comprises:

And when the available transmit power of the UE is greater than the preset power threshold, the random access preamble is transmitted by using the first PRACH opportunity, and the target uplink transmission is performed by using the target uplink resource.
The method according to claim 10, wherein the transmitting, by the first PRACH opportunity, a random access preamble, and performing target uplink transmission by using the target uplink resource, includes:

Comparing the transmission priority of the target uplink transmission with the transmission priority of the random access preamble;

According to the comparison result, the transmission power is allocated for the random access preamble and the target uplink transmission;

And transmitting, by using the first PRACH opportunity, a random access preamble based on the allocated transmit power, and performing target uplink transmission by using the target uplink resource.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

Obtaining a current type of random access, where the type of random access includes a type of random access initiated by the UE and a type of random access initiated by the base station;

The second PRACH opportunity is determined according to the type of the random access.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

Obtaining the type of the uplink transmission of the target;

Determining the second PRACH opportunity according to the type of the target uplink transmission.
The method of claim 1, wherein the determining the second PRACH opportunity comprises:

Determining triggering uplink data, where the triggering uplink data is uplink data that triggers the UE to perform random access;

Comparing the transmission priority of the triggered uplink data with the transmission priority of the target uplink transmission;

The second PRACH opportunity is determined based on the comparison result.
An uplink transmission device, characterized in that the device comprises:

a determining module, configured to determine, during a random access procedure, a second PRACH opportunity to be transmitted through the second PRACH opportunity when there is a target uplink resource that overlaps with the first physical random access channel PRACH opportunity in the time domain When the preamble is randomly accessed, the user equipment UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than the random access preamble transmission. The first PRACH opportunity is a PRACH opportunity that is the highest in the time domain of the at least one PRACH opportunity that is available to the UE, and the target uplink resource is an uplink resource that is used by the UE for the target uplink transmission;

The first transmission module is configured to transmit a random access preamble by using the second PRACH opportunity.
An uplink transmission device, characterized in that the device comprises:

processor;

a memory for storing instructions executable by the processor;

Wherein the processor is configured to:

In the random access procedure, when there is a target uplink resource that overlaps with the first physical random access channel PRACH opportunity in the time domain, determining a second PRACH opportunity, and transmitting a random access preamble through the second PRACH opportunity The user equipment UE does not have a target uplink transmission that overlaps with the second PRACH opportunity in the time domain, and the target uplink transmission is other types of uplink transmissions other than random access preamble transmission, the first The PRACH opportunity is the most advanced PRACH opportunity in the time domain of the at least one PRACH opportunity available to the UE, and the target uplink resource is an uplink resource used by the UE for target uplink transmission;

And transmitting, by the second PRACH opportunity, a random access preamble.
A computer readable storage medium, wherein the computer readable storage medium stores at least one instruction loaded by a processor and executed to implement the uplink transmission according to any one of claims 1 to 14. method.