WO2019062676A1

WO2019062676A1 - Random access re-transmission method, device, terminal and computer readable medium

Info

Publication number: WO2019062676A1
Application number: PCT/CN2018/107095
Authority: WO
Inventors: 张峻峰; 陈中明; 董霏; 郝鹏
Original assignee: 中兴通讯股份有限公司
Priority date: 2017-09-29
Filing date: 2018-09-21
Publication date: 2019-04-04
Also published as: CN109587814A; CN109587814B

Abstract

Provided by the embodiments of the present application are a random access re-transmission method, a device, a terminal and a computer readable medium, the method comprising: entirely adjusting a beam or the power used by a plurality of random access preambles during re-transmission; and re-transmitting the plurality of random access preambles by using the adjusted beam or power.

Description

Random access retransmission method and device, terminal, and computer readable medium

Cross-reference to related applications

The present application is based on a Chinese patent application filed on Jan. 29, 2017, filed on Sep. 29, 2017, and the priority of the entire disclosure of .

Technical field

The present application relates to the field of communications technologies, and in particular, to a random access retransmission method and apparatus, a terminal, and a computer readable medium.

Background technique

With the development of wireless communication technology and the increasing demand for communication by users, in order to meet the needs of higher, faster and newer communication, the fifth generation of mobile communication (5th Generation, 5G) technology has become the trend of future network development.

A 5G communication system is considered to be implemented in a higher and wider frequency band (e.g., above 3 GHz) in order to achieve higher data rates. The characteristics of high-frequency communication are that it has relatively serious path loss and penetration loss, and its spatial transmission is closely related to the atmosphere. Due to the extremely short wavelength of the high-frequency signal, a large number of small antenna arrays can be applied, so that the beamforming technology can obtain a more accurate beam direction, and the advantages of the narrow beam technology can improve the coverage of the high-frequency signal and compensate for the transmission loss. A major feature of communication.

In the traditional Long Term Evolution (LTE) system, the transmission and retransmission of the LTE random access preamble does not involve the problem of multi-beam transmission. In the retransmission, only the method of increasing the probability of access success by power boosting is considered. . In addition to considering the method of power boosting, the NR (New Radio) system needs to consider changing the beam direction to find a more suitable beam direction to improve the access success probability. In general, the terminal in the NR system sends a random access preamble (hereinafter referred to as Msg1) to select a specific beam direction to transmit, if it is not received in the random access response (RAR) window (window) For the acknowledgment signal, Msg1 retransmission is required. The retransmission can choose to switch the beam or boost the power. Which solution is selected based on the comprehensive consideration of the terminal's multi-antenna capability and propagation environment of the current terminal, without constraints, but in the selection handover When the beam is used, the terminal does not increase the power at the same time; if the power is selected to be boosted, the beam will not be switched at the same time. This principle of processing does not present a problem in the case where each transmission and retransmission is a single Msg1. However, when multiple Msg1 transmissions are selected during initial transmission and retransmission, how to improve the access success probability by switching beams and boosting power when retransmitting multiple Msg1s is a problem to be solved.

Summary of the invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the present application provides a random access retransmission method and device, a terminal, and a computer readable medium, which implement random access to retransmission of multiple random access preambles (Msg1).

In a first aspect, the embodiment of the present application provides a random access retransmission method, including:

The beam or power used by the multiple random access preambles during retransmission is adjusted overall, and the multiple random access preambles are retransmitted by using the adjusted beam or power.

In a second aspect, the embodiment of the present application provides a random access retransmission method, including:

Adjusting, respectively, at least one of a beam and a power used by any of the plurality of random access preambles during retransmission;

And retransmitting the plurality of random access preambles by using at least one of the adjusted beam and power.

In a third aspect, the embodiment of the present application provides a random access retransmission device, including:

a first processing module configured to integrally adjust a beam or power used by multiple random access preambles during retransmission;

The first transmission module is configured to retransmit the plurality of random access preambles by using the adjusted beam or power.

In a fourth aspect, the embodiment of the present application provides a random access retransmission device, including:

The second processing module is configured to separately adjust at least one of a beam and a power used by the random access preamble of the multiple random access preambles during retransmission;

The second transmission module is configured to retransmit the multiple random access preambles by using at least one of the adjusted beam and power.

In a fifth aspect, an embodiment of the present application provides a terminal, including: a memory and a processor, where the memory is used to store a random access retransmission program, and the random access retransmission program is implemented by the processor to implement the foregoing. The steps of the random access retransmission method of the first aspect.

In a sixth aspect, an embodiment of the present application provides a terminal, including: a memory and a processor, where the memory is used to store a random access retransmission program, and the random access retransmission program is implemented by the processor to implement the foregoing The second aspect of the random access retransmission method.

In addition, the embodiment of the present application further provides a computer readable medium, where a random access retransmission program is stored, and when the random access retransmission program is executed by a processor, the random access retransmission method of the first aspect is implemented. step.

In addition, the embodiment of the present application further provides a computer readable medium, where a random access retransmission program is stored, and when the random access retransmission program is executed by a processor, the random access retransmission method of the second aspect is implemented. step.

In the embodiment of the present application, the beam or power used by multiple Msg1s during retransmission is adjusted as a whole; and the Msg1 is retransmitted by using the adjusted beam or power. In this way, retransmission of multiple Msg1s is randomly accessed in the NR system.

In the embodiment of the present application, at least one of a beam and a power used by any one of the plurality of Msg1s during retransmission is adjusted, and at least one of the adjusted beam and power is used to retransmit the plurality of Msg1. In this way, retransmission of multiple Msg1s is randomly accessed in the NR system.

Other features and advantages of the present application will be set forth in the description which follows. The objectives and other advantages of the present invention are realized and attained by the structure particularly pointed in

DRAWINGS

FIG. 1 is a schematic diagram of transmission of multiple Msg1s;

FIG. 2 is a flowchart of a random access retransmission method according to an embodiment of the present application;

FIG. 3 is a flowchart of another method for random access retransmission according to an embodiment of the present disclosure;

4 is a schematic diagram of retransmission of scenario 1 according to an embodiment of the present application;

FIG. 5 is a schematic diagram of retransmission of scenario 2 according to an embodiment of the present application;

FIG. 6 is a schematic diagram of retransmission of scenario 3 according to an embodiment of the present application;

FIG. 7 is a schematic diagram of a random access retransmission device according to an embodiment of the present application;

FIG. 8 is a schematic diagram of another random access retransmission apparatus according to an embodiment of the present disclosure;

FIG. 9 is a schematic diagram of a terminal according to an embodiment of the present application.

Detailed ways

The embodiments of the present application are described in detail below with reference to the accompanying drawings.

The steps illustrated in the flowchart of the figures may be executed in a computer system such as a set of computer executable instructions. Also, although logical sequences are shown in the flowcharts, in some cases the steps shown or described may be performed in a different order than the ones described herein.

In the NR system, the terminal (UE, User Equipment) can transmit multiple random access preambles (hereinafter referred to as Msg1) before the end of the RAR window during initial transmission and retransmission, thereby speeding up beam switching or power lifting speed. Reduce the purpose of access delay. As shown in Figure 1, the terminal may choose to send 3 Msg1 before the end of the RAR window. As shown in FIG. 1 , multiple Msg1 transmissions may select a mode of switching but no power ramping, or a method of selecting power ramping without beam switching. When multiple Msg1s transmitted this time are not successfully received by the base station, the UE needs to retransmit multiple Msg1s.

FIG. 2 is a flowchart of a random access retransmission method according to an embodiment of the present application. As shown in FIG. 2, the random access retransmission method provided in this embodiment, for example, is applied to a terminal, and includes the following steps:

S201. Overall adjusting a beam or power used by multiple Msg1s during retransmission;

S202: Retransmit multiple Msg1s by using the adjusted beam or power.

In the present embodiment, a plurality of Msg1 may refer to two or more Msg1. Multiple Msg1s can be handled as a whole to adjust the beam or power used in any Msg1 retransmission.

Exemplarily, in S201, the overall adjustment of the beam or power used by multiple Msg1s during retransmission may include:

Performing beam switching on multiple Msg1s as a whole, wherein any Msg1 uses a beam different from any of the previous transmissions used in the previous transmission, and multiple Msg1 are used in retransmission. The power is the same as the power used in the previous transmission; or,

The power adjustment is performed by using multiple Msg1s as a whole, wherein the beams used by any Msg1 during retransmission are consistent with the beams used in the previous transmission, and any Msg1 uses more power than the previous one in retransmission. The power used for the secondary transmission.

Wherein, when a plurality of Msg1 are processed as a whole, a plurality of Msg1 as a whole may be recorded as a group of Msg1, and any group of Msg1 may satisfy the following transmission rule: a beam used in the transmission of the i+1th group Msg1 Different from the beam used in the transmission of the i-th group Msg1, and the power is the same, or the power used in the transmission of the i+1th group Msg1 is greater than the power used in the transmission of the i-th group Msg1, and the beams are the same. It should be noted that the number of Msg1 included in the i+1th group Msg1 and the i-th group Msg1 is the same.

Illustratively, when the power used to transmit a plurality of Msg1s reaches the maximum power allowable value, the power used when retransmitting multiple Msg1s is equal to the maximum power allowable value. In this example, if the power used in the previous transmission has reached the maximum capacity of the terminal (ie, the maximum power allowable value is reached), the power can no longer be increased during retransmission and can only be maintained at the maximum power allowable value.

Exemplarily, any one of the plurality of Msg1s as a whole satisfies the transmission rule of the single Msg1, wherein the transmission rule of the single Msg1 includes: the beam used in the i+1th Msg1 transmission and the i-th Msg1 The beams used in the transmission are different and the power is the same. Alternatively, the power used in the i+1th Msg1 transmission is greater than the power used in the transmission of the i-th Msg1, and the beams are the same, where i is an integer greater than 0. .

Illustratively, when performing beam switching on multiple Msg1s as a whole, the power used in retransmission of multiple Msg1s and the power used in the previous transmission remain unchanged, and may include:

The power of the first Msg1 used by multiple Msg1s during retransmission is consistent with the maximum power used by multiple Msg1s in the previous transmission.

For example, the overall adjustment of the beam or power used by multiple Msg1s during retransmission may include:

Performing beam switching on multiple Msg1s as a whole, wherein any Msg1 uses a beam different from any of the previous transmissions used in the previous transmission, and the power used by any Msg1 during retransmission The value of the power climb counter corresponding to the beam used for the Msg1 retransmission is determined.

In this example, when the beam is switched overall, the power used for retransmission is not based on the power previously transmitted.

Illustratively, when performing beam switching on multiple Msg1s as a whole, the beams used by multiple Msg1s during retransmission are different from any of the beams used in the previous transmission, and multiple Msg1s are retransmitted. The adopted beams are consistent.

It should be noted that there are two basic scenarios for multiple Msg1 transmissions: one is multi-Msg1 transmission, the multiple Msg1 transmissions select different beams and the multi-beam power is unchanged; the other is multi-Msg1 transmission. Under the multi-Msg1, the same beam is selected and the multi-beam successive power climbs. The above two basic scenarios may alternate in transmission and retransmission, or, for the sake of simplicity, only one of the basic scenarios may be allowed to appear. When the above two basic scenarios can alternately occur in transmission and retransmission, the above example may be used, that is, when multiple Msg1s are used as a whole for beam switching, the beams used by multiple Msg1s during retransmission are used in the previous transmission. Any of the beams is different, and the beams used by multiple Msg1s during retransmission are identical.

FIG. 3 is a flowchart of another random access retransmission method according to an embodiment of the present application. As shown in FIG. 3, the random access retransmission method provided in this embodiment, for example, is applied to a terminal, and includes the following steps:

S301. Adjust, respectively, at least one of a beam and a power used by any one of the plurality of Msg1s during retransmission;

S302: Retransmit multiple Msg1s by using at least one of the adjusted beam and power.

In the present embodiment, a plurality of Msg1 may refer to two or more Msg1. Multiple Msg1s are not processed as a whole and are processed separately to adjust at least one of the beam and power used in any Msg1 retransmission.

For example, adjusting at least one of a beam and a power used by any one of the plurality of Msg1s during retransmission may include:

For some of the multiple Msg1s, the beam used by any Msg1 in the retransmission is different from the beam used in the previous transmission, and the power used in the retransmission is not the same as the power used in the previous transmission. Alternatively, or adjusting the beam used by the Msg1 in retransmission is different from the beam used in the previous transmission, and the power used in the retransmission is determined according to the value of the power climb counter corresponding to the beam used in the retransmission;

For any Msg1 in the plurality of Msg1 except the above part, the power used by the Msg1 in retransmission is greater than the maximum power used in the previous transmission, and the beam and the previous transmission used by the Msg1 during retransmission are used. The beam used remains unchanged.

In this example, part of Msg1 is allowed to reuse the beam or power of the previous transmission during retransmission. Wherein, for a part of Msg1, the beam of the previous transmission is allowed to be reused during retransmission, and for another part of Msg1, the power of the previous transmission is allowed to be reused during retransmission.

Illustratively, when the power used to transmit a plurality of Msg1s reaches the maximum power allowable value, the power used when retransmitting multiple Msg1s is equal to the maximum power allowable value. In this example, if the power used in the previous transmission has reached the maximum capacity of the terminal (ie, the maximum power allowed value is reached), the power can no longer be increased during retransmission and can only be maintained at the maximum power allowable value.

The present application is described below through a plurality of scenarios.

scene one

As shown in FIG. 4, in the case of multiple Msg1 transmissions, when multiple Msg1s currently transmitted are completely different beams and the multi-beam power is unchanged, there are at least the following three methods in retransmission:

(1) Retransmission mode: The overall beam switching is selected during retransmission, wherein the beam direction used for retransmitting all Msg1s is completely different from the beam direction of the previous transmission, since the beam switching is to follow the power remains unchanged. The principle is that the power of multiple Msg1 retransmitted is equal to the power of the previous transmission.

(2) Retransmission mode: The overall power climb is selected during retransmission, wherein the beam direction used for retransmitting all Msg1 is exactly the same as the beam direction of the previous transmission, and the power used by all retransmitted Msg1 is compared. The power transmitted in the previous transmission increases the same power.

The (3) retransmission mode is different from the first two methods of combining multiple Msg1s as a single Msg1. In this mode, some Msg1 in the retransmission selects beam switching and keeps the previous transmission. Power, some Msg1 chooses to keep the beam of the previous transmission and increase the power; for example, the beam used by the fourth and sixth Msg1 is different from the beam transmitted the previous time, but the power remains unchanged, and the fifth The beam used by Msg1 is identical to the beam used in the previous transmission, but the power has climbed.

It should be noted that, in actual implementation, the power increase or power climb is achieved by the power climb counter. When the power climb counter is incremented by one, the power is increased by one level.

The (3) retransmission method follows a principle that each beam has a separate power climb counter. Wherein, the beam part of the retransmission selects the last beam, and part of the beam switching is selected, then the power climbing counter of the same beam is selected plus one, and the power climbing counter of the beam switching is selected unchanged.

In this scenario, the (3) retransmission mode does not use the overall beam switching or the overall power climb mode. In the retransmission part of the previous beam is reused, a power climb counter must be prepared for each beam. A little complicated in implementation.

Scene two

As shown in FIG. 5, in the case of multiple Msg1 transmissions, when multiple Msg1s that are currently transmitted use the same beam and multiple beams are sequentially climbed, there are at least the following five ways of retransmission:

(1) Retransmission mode: Selecting overall beam switching during retransmission, wherein the beam direction used for retransmitting all Msg1s is completely different from the beam direction of the previous transmission, and all Msg1 used in retransmission are used. The beam is consistent; since the beam switching follows the principle that the power remains unchanged, the power of the fourth Msg1 of the retransmitted multiple Msg1 and the last one of the previous transmission (ie the third Msg1) Msg1 are equal. Since the beam directions of the fifth Msg1 and the fourth Msg1 are the same, the power of the fifth Msg1 is increased by one level; since the beam directions of the sixth Msg1 and the fifth Msg1 are the same, the power of the sixth Msg1 is Then upgrade one level.

(2) Retransmission mode: Selecting overall beam switching during retransmission, wherein the beam direction used for retransmitting all Msg1s is completely different from the beam direction of the previous transmission, and all Msg1 used in retransmission are used. The beam is consistent; if the principle of having a separate power climb counter for each beam is followed, the power of the retransmitted multiple Msg1 is re-counted, and the power of the last Msg1 (ie, the third Msg1) of the previous transmission is not equal.

(3) Retransmission mode: The overall power climb is selected during retransmission, wherein the beam direction used for retransmitting all Msg1 is exactly the same as the beam direction of the previous transmission, and all retransmitted Msg1 are sent in the previous transmission. The transmit power is increased on the basis of the above, and the power of multiple Msg1s in the retransmission is sequentially increased.

(4) Retransmission mode: When retransmission, some Msg1 selects the beam switching and keeps the last transmission power sent last time. Some Msg1 selects to keep the previous beam and increase the power. For example, the beams of the fourth and sixth Msg1 are different from the previous beam, but the power is the same as the power of the previous third Msg1, and the beam of the fifth Msg1 is the same as the beam sent the previous time, but The power climbed relative to the previous third Msg1 power.

(5) Retransmission mode: When retransmission, some Msg1 selects the beam switching and the power follows the principle of the power climb counter corresponding to each beam separately. Some Msg1 selects to keep the previous beam and increase the power. For example, the fourth and sixth Msg1 beams are different from the previous beam, but the power follows the principle that each beam has a separate power climb counter. The fourth and sixth Msg1 powers are based on retransmissions. The value of the power climb counter corresponding to the beam used is re-determined; and the beam of the fifth Msg1 is identical to the beam transmitted last time, but the power is climbed relative to the power of the previous third Msg1.

In the retransmission mode (4) and (5), the previous beam is partially reused in the retransmission, which brings a certain operational complexity. In the (2) type of retransmission mode, when the whole beam is switched, the power is not based on the power transmitted in the previous time, and the access time is extended to some extent.

Scene three

As shown in Figure 6, scenario 3 is an intermediate state between scenario 1 and scenario 2. In the case of multiple Msg1 transmissions, the beams in the previous Msg1 are the same, and some beams are different. As shown in FIG. 6, the second Msg1 and the third Msg1 select the same beam, and the first Msg1 selects a different beam. According to the transmission rule of the single Msg1, the power of the third Msg1 is higher than that of the first Msg1. The power of two Msg1. In this scenario, there are at least three ways to retransmit:

(1) Retransmission mode: Selecting overall beam switching during retransmission, wherein the beam direction used for retransmitting all Msg1s is completely different from the beam direction of the previous transmission, and multiple Msg1 and previous retransmissions are retransmitted. The transmitted power needs to be equal in principle. In this scenario, since there are two powers in the previous transmission, the maximum power in the previous transmission is selected here, that is, the power of multiple retransmitted Msg1 is equal to the maximum power in the previous transmission.

(2) Retransmission mode: The overall power climb is selected during retransmission, wherein the beam direction of all Msg1 retransmitted is exactly the same as the previous beam direction, and all retransmitted Msg1 are improved on the previous basis. The same transmit power.

The (3) retransmission mode: the Msg1 processing method in which the first two Msg1 are combined as a whole is different. When retransmission, some Msg1 selects the beam switching and maintains the previous transmission power, and some Msg1 selects. It is to keep the previous beam and increase the power; for example, the fourth and sixth Msg1 beams are different from the previous beam, but the power is re-determined according to the value of the power climb counter corresponding to the beam used for retransmission, and The beam of the fifth Msg1 is identical to the previous one, but the power is climbed relative to the power of the previous third Msg1.

The (3) retransmission mode in this scenario is similar to the (3) retransmission mode in scenario 1. Each beam has a separate power climb counter. Wherein, the beam part of the retransmission selects the last beam, and part of the beam switching is selected, then the power climbing counter of the same beam is selected plus one, and the power climbing counter of the beam switching is selected unchanged.

The retransmission mode of (1) and (2) in the integrated scene, the retransmission mode of (1) and (3) in scenario 2, and the retransmission mode of (1) and (2) in scenario 3 It can be seen that when multiple Msg1 is retransmitted, multiple Msg1s can perform complete beam switching as a whole, where retransmission does not use any previous beam, and the retransmission power remains unchanged; or all previous beams can be used for retransmission. And carry out a power climb. For multiple Msg1s in a whole, it is still possible to operate according to the transmission rule of a single Msg1.

It should be noted that the operations related to power increase, power maintenance, power climb, etc. mentioned in the present application may be performed based on the power climb counter, the power climb counter remains unchanged, the power remains unchanged, and the power climb counter Add one to increase the power or climb one unit of power.

FIG. 7 is a schematic diagram of a random access retransmission device according to an embodiment of the present application. As shown in FIG. 7, the random access retransmission apparatus provided in this embodiment includes:

The first processing module 701 is configured to adjust overall a beam or power used by multiple Msg1s during retransmission;

The first transmission module 702 is configured to retransmit multiple Msg1s by using the adjusted beam or power.

Exemplarily, the first processing module 701 can be configured to integrally adjust the beams or powers used by multiple Msg1s during retransmission by:

Performing power adjustment on the plurality of Msg1 as a whole, wherein, when multiple Msg1s are retransmitted, the beam used by any Msg1 is consistent with the beam used in the previous transmission, and the power used by any Msg1 during retransmission is used. Greater than the power used in the previous transmission.

For the description of the device provided in this embodiment, reference may be made to the description of the method embodiment corresponding to FIG. 2 above, and thus no further details are provided herein.

FIG. 8 is a schematic diagram of another random access retransmission device according to an embodiment of the present disclosure. As shown in FIG. 8, the random access retransmission apparatus provided in this embodiment includes:

The second processing module 801 is configured to separately adjust at least one of a beam and a power used by any one of the plurality of Msg1s during retransmission;

The second transmission module 802 is configured to retransmit multiple Msg1s by using at least one of the adjusted beam and power.

Exemplarily, the second processing module 801 can be configured to separately adjust at least one of a beam and a power used by any one of the plurality of Msg1s during retransmission by:

For any Msg1 of the plurality of Msg1 except the above part, the power used by the Msg1 for retransmission is greater than the maximum power used in the previous transmission, and the beam used by the Msg1 during retransmission and the previous transmission station are adjusted. The beam used remains unchanged.

For a description of the apparatus provided in this embodiment, reference may be made to the description of the method embodiment corresponding to FIG. 3 above, and thus no further details are provided herein.

FIG. 9 is a schematic diagram of a terminal according to an embodiment of the present application. As shown in FIG. 9, the terminal 900 provided in this embodiment includes: a memory 901 and a processor 902. It will be understood by those skilled in the art that the terminal structure shown in FIG. 9 does not constitute a limitation on the terminal 900, and the terminal 900 may include more or less components than those illustrated, or combine some components, or different component arrangements. .

The processor 902 may include, but is not limited to, a processing device such as a microprocessor (MCU) or a Field Programmable Gate Array (FPGA). The memory 901 can be used to store software programs and modules of the application software, such as the program instructions or modules corresponding to the random access retransmission method in the embodiment corresponding to FIG. 2 or FIG. 3, and the processor 902 runs the software stored in the memory 901. The program and the module, thereby performing various function applications and data processing, such as implementing the random access retransmission method provided by the embodiment corresponding to FIG. 2 or FIG. 3. Memory 901 can include high speed random access memory, and can also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 901 can include memory remotely located relative to processor 902, which can be connected to terminal 900 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Illustratively, the above terminal 900 may further include a communication unit 903; the communication unit 903 may receive or transmit data via a network. In one example, communication unit 903 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.

In addition, the embodiment of the present application further provides a computer readable medium, where a random access retransmission program is stored, and when the random access retransmission program is executed by the processor, the randomized manner provided by the embodiment corresponding to FIG. 2 or FIG. 3 is implemented. The steps to access the retransmission method.

Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and functional blocks or units of the methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. In a hardware implementation, the division between functional modules or units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be performed by several physical The components work together. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on a computer readable medium, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As is well known to those of ordinary skill in the art, the term computer storage medium includes volatile and nonvolatile, implemented in any method or technology for storing information, such as computer readable instructions, data structures, program modules or other data. Sex, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridge, magnetic tape, magnetic disk storage or other magnetic storage device, or may Any other medium used to store the desired information and that can be accessed by the computer. Moreover, it is well known to those skilled in the art that communication media typically includes computer readable instructions, data structures, program modules or other data in a modulated data signal, such as a carrier wave or other transport mechanism, and can include any information delivery media. .

It is to be understood that the phrase "one embodiment" or "an embodiment" or "an embodiment" or "an embodiment" means that the particular features, structures, or characteristics relating to the embodiments are included in at least one embodiment of the present application. Thus, "in one embodiment" or "in an embodiment" or "an" In addition, these particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. It should be understood that, in the various embodiments of the present application, the size of the sequence numbers of the foregoing processes does not mean the order of execution sequence, and the order of execution of each process should be determined by its function and internal logic, and should not be applied to the embodiment of the present application. The implementation process constitutes any limitation. The serial numbers of the embodiments of the present application are merely for the description, and do not represent the advantages and disadvantages of the embodiments.

It is to be understood that the term "comprises", "comprising", or any other variants thereof, is intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes those elements. It also includes other elements that are not explicitly listed, or elements that are inherent to such a process, method, article, or device. An element that is defined by the phrase "comprising a ..." does not exclude the presence of additional equivalent elements in the process, method, item, or device that comprises the element.

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

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

In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the above integration The unit can be implemented in the form of hardware or in the form of hardware plus software functional units.

It will be understood by those skilled in the art that all or part of the steps of implementing the foregoing method embodiments may be performed by hardware related to program instructions. The foregoing program may be stored in a computer readable storage medium, and when executed, the program includes The foregoing steps of the method embodiment; and the foregoing storage medium includes: a removable storage device, a read only memory (ROM), a magnetic disk, or an optical disk, and the like, which can store program codes.

Alternatively, the above-described integrated unit of the present application may be stored in a computer readable storage medium if it is implemented in the form of a software function module and sold or used as a stand-alone product. Based on such understanding, the technical solution of the embodiments of the present application may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions. A computing device (which may be a personal computer, server, or network device, etc.) is implemented to perform all or part of the methods described in various embodiments of the present application. The foregoing storage medium includes various media that can store program codes, such as a mobile storage device, a ROM, a magnetic disk, or an optical disk.

The foregoing is only an embodiment of the present application, but the scope of protection of the present application is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present application. It is covered by the scope of protection of this application. Therefore, the scope of protection of the present application should be determined by the scope of the claims.

Claims

A random access retransmission method includes:

The beam or power used by the multiple random access preambles during retransmission is adjusted overall, and the multiple random access preambles are retransmitted by using the adjusted beam or power.
The method according to claim 1, wherein the overall adjustment of a beam or power used by a plurality of random access preambles during retransmission includes:

Performing beam switching on the plurality of random access preambles as a whole, wherein the plurality of random access preambles use any of the beams used in the random access preamble and any of the previous transmissions during retransmission Different, and the power used by the multiple random access preambles during retransmission remains unchanged from the power used in the previous transmission; or

Performing power adjustment on the multiple random access preambles as a whole, where the beams used by any of the multiple random access preambles during retransmission are consistent with the beams used in the previous transmission. And any random access preamble uses more power during retransmission than the power used in the previous transmission.
The method according to claim 1, wherein when the power used for transmitting the plurality of random access preambles reaches a maximum power allowable value, the power used for retransmitting the plurality of random access preambles is equal to the maximum Power allowable value.
The method according to claim 1 or 2, wherein any one of the plurality of random access preambles as a whole satisfies a transmission rule of a single random access preamble, wherein the single random access preamble The transmission rule includes: the beam used in the i+1th random access preamble transmission is different from the beam used in the ith random access preamble transmission, and the power is the same, or the i+1th random access preamble The power used in the transmission is greater than the power used in the ith random access preamble transmission, and the beams are the same, where i is an integer greater than zero.
The method according to claim 2, when the plurality of random access preambles are beam-switched as a whole, the power used by the plurality of random access preambles during retransmission and the power used in the previous transmission Stay the same, including:

The power used by the first random access preamble of the multiple random access preambles during retransmission is consistent with the maximum power used by the multiple random access preambles in the previous transmission.
The method according to claim 1, wherein the overall adjustment of a beam or power used by a plurality of random access preambles during retransmission includes:

Performing beam switching on the plurality of random access preambles as a whole, wherein the plurality of random access preambles use any of the beams used in the random access preamble and any of the previous transmissions during retransmission The powers of the random access preambles are determined according to the value of the power climb counter corresponding to the beam used by the random access preamble retransmission.
The method according to claim 2 or 6, when the plurality of random access preambles are beam-switched as a whole, the plurality of random access preambles are used in any random access preamble during retransmission The beam is different from any of the beams used in the previous transmission, and the beams used by the multiple random access preambles are reconciled.
A random access retransmission method includes: adjusting, respectively, at least one of a beam and a power used by a random access preamble of a plurality of random access preambles during retransmission;

And retransmitting the plurality of random access preambles by using at least one of the adjusted beam and power.
The method according to claim 8, wherein the adjusting respectively at least one of a beam and a power used by the random access preamble of the plurality of random access preambles during retransmission includes:

Adjusting, for a part of the plurality of random access preambles, a beam used by any of the random access preambles in the retransmission to be different from a beam used in the previous transmission, and the power used in the retransmission The power used in the previous transmission remains unchanged, or the beam used in the retransmission of the random access preamble is different from the beam used in the previous transmission, and the power used in the retransmission is based on the retransmission. The value of the power climb counter corresponding to the adopted beam is determined;

And adjusting, according to any random access preamble of the plurality of random access preambles, the power used by the random access preamble in retransmission is greater than the maximum power used in the previous transmission, and The beam used by the random access preamble during retransmission remains unchanged from the beam used in the previous transmission.
The method according to claim 8, wherein when the power used for transmitting the plurality of random access preambles reaches a maximum power allowable value, the power used when retransmitting the plurality of random access preambles is equal to the maximum Power allowable value.
A random access retransmission device includes: a first processing module configured to integrally adjust a beam or power used by multiple random access preambles during retransmission;

The first transmission module is configured to retransmit the multiple random access preambles by using the adjusted beam or power.
The apparatus according to claim 11, wherein the first processing module is configured to integrally adjust a beam or power used by a plurality of random access preambles during retransmission by:

Performing beam switching on the plurality of random access preambles as a whole, wherein the plurality of random access preambles use any of the beams used in the random access preamble and any of the previous transmissions during retransmission Different, and the power used by the multiple random access preambles during retransmission remains unchanged from the power used in the previous transmission; or

Performing power adjustment on the multiple random access preambles as a whole, where the beams used by any of the multiple random access preambles during retransmission are consistent with the beams used in the previous transmission. And any random access preamble uses more power during retransmission than the power used in the previous transmission.
A random access retransmission device includes:

The second processing module is configured to separately adjust at least one of a beam and a power used by the random access preamble of the multiple random access preambles during retransmission;

The second transmission module is configured to retransmit the multiple random access preambles by using at least one of the adjusted beam and power.
The apparatus according to claim 13, wherein the second processing module is configured to separately adjust at least one of a beam and a power used by each of the plurality of random access preambles during retransmission in the following manner :

Adjusting, for a part of the plurality of random access preambles, a beam used by any of the random access preambles in the retransmission to be different from a beam used in the previous transmission, and the power used in the retransmission The power used in the previous transmission remains unchanged, or the beam used in the retransmission of the random access preamble is different from the beam used in the previous transmission, and the power used in the retransmission is based on the retransmission. The value of the power climb counter corresponding to the adopted beam is determined;

And adjusting, according to any random access preamble of the plurality of random access preambles, the power used by the random access preamble in retransmission is greater than the maximum power used in the previous transmission, and The beam used by the random access preamble during retransmission remains unchanged from the beam used in the previous transmission.
A terminal comprising: a memory and a processor; the memory is configured to store a random access retransmission program, and the random access retransmission program is executed by the processor to implement any one of claims 1 to 7 The step of the random access retransmission method.
A terminal comprising: a memory and a processor; the memory is configured to store a random access retransmission program, and the random access retransmission program is executed by the processor to implement any one of claims 8 to 10 The step of the random access retransmission method.
A computer readable medium storing a random access retransmission program, the random access retransmission program being executed by a processor, implementing the random access retransmission method according to any one of claims 1 to 7. step.
A computer readable medium storing a random access retransmission program, the random access retransmission program being executed by a processor, implementing the random access retransmission method according to any one of claims 8 to 10 step.