CN110870343B

CN110870343B - Wireless communication method and apparatus

Info

Publication number: CN110870343B
Application number: CN201980002801.2A
Authority: CN
Inventors: 唐海
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2018-05-18
Filing date: 2019-05-20
Publication date: 2021-10-08
Anticipated expiration: 2039-05-20
Also published as: CN110870343A; WO2019219091A8; WO2019219091A1

Abstract

The embodiment of the application provides a wireless communication method and equipment, which can ensure the transmission performance and simultaneously reduce the complexity of communication equipment as much as possible. The method comprises the following steps: determining a mapping relation between a Redundancy Version (RV) and a demodulation reference signal (DMRS); and processing the target data based on the mapping relation.

Description

Wireless communication method and apparatus

Cross Reference to Related Applications

The present application claims priority of chinese patent application No. 201810481483.X entitled "wireless communication method and apparatus" filed on 18.5.2018 and chinese patent office No. 201810497596.9 filed on 22.5.2018, which are incorporated herein by reference in their entirety.

Technical Field

The present embodiments relate to the field of communications, and in particular, to a wireless communication method and apparatus.

Background

In future Communication systems, the requirement for transmission performance, such as transmission reliability, is high, for example, an Ultra-reliable low-latency Communication (URLLC) service may be adopted, and the service is characterized by achieving transmission with Ultra-high reliability (e.g., 99.999%) within an extremely short latency (e.g., 1 ms).

In future communications, it is desirable to minimize the complexity of communication devices, such as network devices, while ensuring transmission performance, such as transmission reliability.

Disclosure of Invention

The embodiment of the application provides a wireless communication method and equipment, which can ensure the transmission performance and simultaneously reduce the complexity of communication equipment as much as possible.

In a first aspect, a method for line communication is provided, including: determining a mapping relation between a Redundancy Version (RV) and a Demodulation Reference Signal (DMRS); and processing the target data based on the mapping relation.

Therefore, in the embodiment of the present application, the mapping relationship between the RV and the DMRS is determined, and data processing is performed based on the mapping relationship, so that the complexity of the communication device can be reduced as much as possible while the transmission performance is ensured.

With reference to the first aspect, in a possible implementation manner of the first aspect, in the mapping relationship, at least one first RV and at least one first DMRS exist, where the at least one first RV corresponds to the at least one first DMRS one to one.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the at least one first RV is all RVs in the mapping relationship; and the number of the first and second groups,

the at least one first DMRS is all DMRSs in the mapping relation.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, in the mapping relationship, there is at least one second RV and a plurality of second DMRSs, where the second RV and the second DMRS are in a one-to-many relationship.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, in the mapping relationship, there are multiple second RVs, and each second RV corresponds to multiple second DMRSs.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, each RV in the mapping relationship corresponds to multiple DMRSs.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the second RV is RV 0.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, in the mapping relationship, there are a plurality of third RVs and at least one third DMRS, where the third RVs and the third DMRS are in a many-to-one relationship.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, each DMRS in the mapping relationship corresponds to multiple RVs.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the processing target data based on the mapping relationship includes:

determining the RV of the current transmission of the target data based on the DMRS of the current transmission of the target data and the mapping relation;

and processing the target data based on the RV of the current transmission of the target data.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the method is used for multiple transmissions of the target data.

With reference to the first aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the first aspect, the method further includes:

determining the transmission times corresponding to the current transmission of the target data or a transmission starting point of the target data based on the DMRS of the current transmission of the target data;

and processing the target data based on the determined transmission times or the transmission starting point.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the determining, based on the DMRS of the current transmission of the target data, a number of transmissions corresponding to the current transmission of the target data or a transmission start point of the target data includes:

determining the transmission number or the transmission starting point based on the DMRS of the current transmission of the target data and the RV of the current transmission of the target data.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the method is implemented by a terminal;

the processing of the target data based on the mapping relationship includes:

and processing the target data based on the mapping relation so as to send the target data to network equipment.

With reference to the first aspect or any one of the foregoing possible implementations, in another possible implementation of the first aspect, the method is implemented by a network device;

the processing of the target data based on the mapping relationship includes:

and processing the target data based on the mapping relation to obtain the target data.

In a second aspect, a wireless communication method is provided, including: determining a mapping relation between a Redundancy Version (RV) and the transmission times of data; and processing the target data based on the mapping relation.

Determining a mapping relation between a Redundancy Version (RV) and the transmission times of data;

and processing the target data based on the mapping relation.

Therefore, in the embodiment of the present application, the mapping relationship between the RV and the transmission times is determined, and data processing is performed based on the mapping relationship, so that the complexity of the communication device can be reduced as much as possible while the transmission performance is ensured.

With reference to the second aspect, in a possible implementation manner of the second aspect, in the mapping relationship, at least one first RV and at least one first transmission frequency exist, where the at least one first RV and the at least one first transmission frequency are in a one-to-one correspondence relationship.

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the at least one first RV is all RVs in the mapping relationship; and the number of the first and second groups,

the at least one first transmission number is the total transmission number in the mapping relationship.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, in the mapping relationship, at least one second RV and a plurality of second transmission times exist, where the second RV and the second transmission times are in a one-to-many relationship.

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, in the mapping relationship, there are multiple second RVs, and each second RV corresponds to multiple second transmission times.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, all RVs in the mapping relationship are the second RV.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, in the mapping relationship, a plurality of third RVs and at least one third transmission time exist, where the third RVs and the third transmission times are in a many-to-one relationship.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, each transmission number in the mapping relationship corresponds to multiple RVs.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, the processing the target data based on the mapping relationship includes:

determining the RV of the current transmission of the target data based on the transmission times of the current transmission of the target data and the mapping relation;

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, when the determined RV is multiple, the method further includes:

blind detection of the plurality of RVs is performed.

With reference to the second aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the second aspect, the method further includes:

and determining user information based on RV obtained by blind detection.

determining the transmission times or the transmission starting point of the current transmission of the target data based on the RV of the current transmission of the target data and the mapping relation;

and processing the target data based on the transmission times or the transmission starting points of the current transmission of the target data.

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the method is used for multiple transmissions of the target data.

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the method is implemented by a terminal;

the processing of the target data based on the mapping relationship includes:

With reference to the second aspect or any one of the foregoing possible implementations, in another possible implementation of the second aspect, the method is implemented by a network device;

the processing of the target data based on the mapping relationship includes:

In a third aspect, a wireless communication method is provided, the method comprising: determining the transmission times and/or the transmission starting point of the target data based on at least one of the resource position occupied by the target data, the corresponding DMRS and the RV; and processing the target data based on the transmission times and/or the transmission starting point.

Therefore, in the embodiment of the present application, the transmission number and/or the transmission start point of the target data are determined based on at least one of the resource location occupied by the target data, the corresponding DMRS and RV, and the transmission number and/or the transmission start point of the target data can be accurately determined, so that the target data can be processed based on the transmission number and/or the transmission start point.

With reference to the third aspect, in a possible implementation manner of the third aspect, the determining, based on at least one of a resource location occupied by the target data, a corresponding DMRS and an RV, a transmission number and/or a transmission start point of the target data includes:

determining the transmission times and/or the transmission starting point of the target data based on the resource position occupied by the target data and the corresponding DMRS;

determining the transmission times and/or the transmission starting point of the target data based on the DMRS and the RV corresponding to the target data;

determining the transmission times and/or the transmission starting point of the target data based on the resource position and RV occupied by the target data;

and determining the transmission times and/or the transmission starting point of the target data based on the resource position occupied by the target data, the corresponding DMRS and RV.

With reference to the third aspect or any one of the foregoing possible implementation manners, in another possible implementation manner of the third aspect, the method is implemented by a terminal;

the processing of the target data based on the transmission times and/or the transmission starting point includes:

and processing the target data based on the transmission times and/or the transmission starting point so as to send the target data to the network equipment.

With reference to the third aspect or any one of the foregoing possible implementations, in another possible implementation of the third aspect, the method is implemented by a network device;

and processing the target data based on the transmission times and/or the transmission starting point to acquire the target data.

In a fourth aspect, a wireless communication device is provided for performing any of the above methods. In particular, the wireless communication device comprises functional modules for performing any of the above methods.

In a fifth aspect, a wireless communication device is provided that includes a processor, a memory, and a transceiver. The processor, the memory and the transceiver communicate with each other through the internal connection path to transmit control and/or data signals, so that the wireless communication device executes any one of the above methods.

In a sixth aspect, a computer-readable medium is provided for storing a computer program comprising instructions for performing the above-described method.

In a seventh aspect, there is provided a computer program product comprising instructions which, when run on a computer, cause the computer to perform any of the above methods.

In an eighth aspect, a chip is provided for implementing any of the above aspects or any of its implementation manners.

Specifically, the chip includes: and the processor is used for calling and running the computer program from the memory so that the equipment provided with the chip executes any one of the methods.

In a ninth aspect, there is provided a computer program which, when run on a computer, causes the computer to perform any of the methods described above.

Drawings

Fig. 1 is a schematic diagram of a wireless communication system according to an embodiment of the application.

Fig. 2 is a schematic diagram of a wireless communication method according to an embodiment of the application.

Fig. 3 is a schematic diagram of a wireless communication method according to an embodiment of the application.

Fig. 4 is a schematic diagram of a wireless communication method according to an embodiment of the application.

Fig. 5 is a schematic diagram of a DMRS and a data transmission start point according to an embodiment of the present application.

Fig. 6 is a schematic diagram of a DMRS and a data transmission start point according to an embodiment of the present application.

Fig. 7 is a schematic diagram of a DMRS and a data transmission start point according to an embodiment of the present application.

Fig. 8 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 9 is a schematic block diagram of a chip according to an embodiment of the application.

Fig. 10 is a schematic block diagram of a communication device according to an embodiment of the present application.

Fig. 11 is a schematic block diagram of a communication system according to an embodiment of the present application.

Detailed Description

Technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical scheme of the embodiment of the application can be applied to various communication systems, for example: a Global System for Mobile communications (GSM) System, a Code Division Multiple Access (CDMA) System, a Wideband Code Division Multiple Access (WCDMA) System, a General Packet Radio Service (GPRS) System, a Long Term Evolution (Long Term Evolution, LTE) System, a Frequency Division Duplex (FDD) System, a Time Division Duplex (TDD) System, a WiMAX (Universal Mobile telecommunications System, UMTS), a world wide Radio Access (Worldwide Interoperability for Microwave) System, or a New NR 5 (NR) System.

Fig. 1 illustrates a wireless communication system 100 to which an embodiment of the present application is applied. The wireless communication system 100 may include a network device 110. Network device 110 may be a device that communicates with a terminal device. Network device 110 may provide communication coverage for a particular geographic area and may communicate with terminal devices, such as User Equipments (UEs), located within the coverage area. The Network device 110 may be a Base Transceiver Station (BTS) in a GSM system or a CDMA system, a Base Station (NodeB, NB) in a WCDMA system, an evolved Node B (eNB or eNodeB) in an LTE system, or a wireless controller in a Cloud Radio Access Network (CRAN), or a Network device in a relay Station, an Access point, a vehicle-mounted device, a wearable device, a Network side device in a future 5G Network, or a Network device in a future evolved Public Land Mobile Network (PLMN), or the like.

The wireless communication system 100 also includes at least one terminal device 120 located within the coverage area of the network device 110. The terminal device 120 may be mobile or stationary. Terminal equipment 120 can refer to an access terminal, User Equipment (UE), subscriber unit, subscriber station, mobile station, remote terminal, mobile device, user terminal, wireless communication device, user agent, or user device. An access terminal may be a cellular telephone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA), a handheld device having Wireless communication capabilities, a computing device or other processing device connected to a Wireless modem, a vehicle mounted device, a wearable device, a terminal device in a 5G network, or a terminal device in a future evolved PLMN, etc.

In one embodiment, direct-to-Device (D2D) communication between end devices 120 is possible.

The 5G system or network may also be referred to as a new wireless (NR) system or network in one embodiment.

Fig. 1 exemplarily shows one network device and two terminal devices, and in one embodiment, the wireless communication system 100 may include a plurality of network devices and each network device may include other numbers of terminal devices within a coverage area thereof, which is not limited in this embodiment.

In an embodiment, the wireless communication system 100 may further include other network entities such as a network controller, a mobility management entity, and the like, which is not limited in this application.

It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

Fig. 2 is a schematic flow chart of a wireless communication method according to an embodiment of the application. In the embodiment of the present application, the method may be implemented by a terminal device, and may also be implemented by a network device.

The method 200 includes at least some of the following.

In 210, a mapping relationship of a Redundancy Version (RV) and a demodulation reference signal (DMRS) is determined. In particular, the mapping relationship may indicate a correspondence between the at least one RV and the at least one DMRS.

One RV may correspond to one DMRS or multiple DMRSs, and the DMRSs corresponding to the RVs may all be the same, may also be partially the same, or may be completely different. The number of DRMS corresponding to each RV may be the same or different.

And one DMRS may correspond to one RV or a plurality of RVs, and the RVs corresponding to the respective DMRSs may be completely the same, may also be partially the same, or may not be completely the same. The number of RVs corresponding to each DMRS may be the same or different.

In this embodiment of the application, when the method is implemented by a terminal device, the mapping relationship may be preset on the terminal device, for example, may be factory preset, or may be preset by a network device.

In this embodiment of the application, when the method is implemented by a network device, the mapping relationship may be preset on the network device, for example, may be factory preset.

At 220, target data is processed based on the mapping.

In the embodiment of the present application, in the mapping relationship, there are at least one first RV and at least one first DMRS, wherein the at least one first RV corresponds to the at least one first DMRS on a one-to-one basis.

In the embodiment of the present application, the at least one first RV is all RVs in the mapping relationship; and the at least one first DMRS is all DMRSs in the mapping relation.

That is, in the mapping relationship, all RVs and all DMRSs are in a one-to-one relationship.

Therefore, the RV can be directly identified through the DMRS transmitted at the current time, and RV blind detection is avoided. In addition, when a plurality of RVs exist, the plurality of RVs can obtain gains of combining the plurality of RVs.

In the embodiment of the application, at least one second RV and a plurality of second DMRSs exist in the mapping relationship, wherein the second RV and the second DMRS are in a one-to-many relationship.

That is, in the mapping relationship, there is at least one such RV, which may correspond to a plurality of DMRSs.

In the embodiment of the present application, in the mapping relationship, a plurality of second RVs exist, and each second RV corresponds to a plurality of second DMRSs, respectively.

Specifically, when transmission of target data is performed, the DMRS of the previous times may correspond to one RV, for example, RV 0; the DMRS a plurality of times later may correspond to another RV or RVs.

Thus, RV0 is employed in the first few transmissions to facilitate self-detection. And other RVs are adopted in the later transmissions, so that the RV combination gain is favorably obtained. The design utilizes: the probability of user undetected decreases with the increase of transmission times. The self-detection and RV combining gains are balanced. And meanwhile, the method is bound with the DMRS, so that blind detection of the RV is reduced.

In the embodiment of the present application, each RV in the mapping relationship corresponds to a plurality of DMRSs.

Of course, in the embodiment of the present application, in the mapping relationship, the first RV and the second RV may exist at the same time, and the first DMRS and the second DMRS may also exist at the same time. That is, there is a portion of RV that may correspond one-to-one to DMRS, and there is another portion of RV that is in a one-to-many relationship with DMRS.

In the embodiment of the present application, the second RV is RV 0. Where RV0 is used to indicate that the currently transmitted redundancy bits are the bits of the first segment.

Thus, fixing the RV, and particularly employing RV0, facilitates self-detection of data in the event that a previous transmission was not detected.

In the embodiment of the application, in the mapping relationship, a plurality of third RVs and at least one third DMRS exist, wherein the third RVs and the third DMRS are in a many-to-one relationship.

That is, in the mapping relationship, there are some RVs, and a plurality of RVs may correspond to one DMRS.

In the embodiment of the present application, each DMRS in the mapping relationship corresponds to multiple RVs.

Of course, in the embodiment of the present application, in the mapping relationship, the second RV and the third RV may exist simultaneously, and the second DMRS and the third DMRS may also exist simultaneously. That is, there is a part of RV and a part of DMRS, which may be in a one-to-many relationship, and there is another part of RV and another part of DMRS, which is in a many-to-one relationship.

Or, in the mapping relationship, the first, second and third RVs may exist simultaneously, and the first, second and third DMRSs may also exist simultaneously. That is, there is a portion of the RV and a portion of the DMRS that may have a one-to-one relationship therebetween, there is another portion of the RV and another portion of the DMRS that may have a one-to-many relationship therebetween, and there is another portion of the RV and another portion of the DMRS that may have a many-to-one relationship therebetween.

In this embodiment of the present application, the processing target data based on the mapping relationship includes:

At this time, it may be determined that the current transmission is the segment of the redundancy bits of the target data based on the RV of the current transmission.

In the embodiment of the present application, when it is determined that there are a plurality of RVs, blind detection may be performed on the plurality of RVs, that is, blind detection may be performed based on the plurality of RVs.

Of course, in this embodiment of the present application, the DMRS for the current transmission of the target data may also be determined based on the RV for the current transmission of the target data and the mapping relationship, and the target data may be processed based on the DMRS.

In an embodiment of the application, the method is used for transmitting the target data for multiple times.

In an embodiment of the present application, the method further includes:

In the embodiment of the present application, the number of transmissions corresponding to the current transmission of the target data or the transmission start point of the target data may be determined based on various implementations, which will be described below with reference to fig. 5 to 7 and will not be described here.

It should be understood that the number of transmissions corresponding to the current transmission mentioned above may refer to the number of times the current target data is transmitted. And, the above-mentioned transmission start point of the target data may refer to where the first transmission of the target data is transmitted.

In this embodiment of the present application, determining the number of transmissions corresponding to the current transmission of the target data or the transmission start point of the target data based on the DMRS of the current transmission of the target data includes:

That is, the number of transmissions or the transmission start point may be determined in common by further combining the DMRS of the current transmission of the target data and the RV of the current transmission of the target data.

Thus, in addition to identifying the number of transmissions by DMRS, the number of transmissions may be further determined based on RV. The DRMS and the RV jointly determine the transmission times, and the RV and the DMRS have a corresponding relation. The number of blind detections of the RV may be reduced at a determined total number of transmissions.

In the embodiment of the application, the method is realized by a terminal; the terminal may perform processing on the target data based on the mapping relationship to send the target data to the network device.

In the embodiment of the application, the method is implemented by a network device; the network device may perform processing of the target data based on the mapping relationship to obtain the target data.

Fig. 3 is a schematic flow chart diagram of a wireless communication method 300 according to an embodiment of the application. The method 300 includes at least some of the following.

At 310, a mapping relationship between RV and the number of transmissions of data is determined. Wherein the number of transmissions is used to indicate the number of transmissions.

Specifically, the mapping relationship may indicate a correspondence between at least one RV and at least one transmission number.

One RV may correspond to one transmission frequency or multiple transmission frequencies, and the transmission frequencies corresponding to the RVs may all be the same, may also be partially the same, or may be completely different. The number of transmission times corresponding to each RV may be the same or different.

And, one transmission number may correspond to one RV or a plurality of RVs, and the RVs corresponding to the respective transmission numbers may be completely the same, may also be partially the same, or may be completely different. The number of RVs corresponding to each transmission frequency may be the same or different.

At 320, target data is processed based on the mapping relationship.

In the embodiment of the present application, in the mapping relationship, at least one first RV and at least one first transmission number exist, where the at least one first RV and the at least one first transmission number are in a one-to-one correspondence relationship.

In the embodiment of the present application, the at least one first RV is all RVs in the mapping relationship; and the at least one first transmission frequency is the total transmission frequency in the mapping relation.

That is, in the mapping relationship, all RVs and all transmission times are in a one-to-one relationship.

Thus, the number of transmissions can be determined by blindly detecting the RV. Alternatively, blind detection of RV can be avoided once transmission sub-outputs are determined.

In the embodiment of the present application, in the mapping relationship, at least one second RV and a plurality of second transmission times exist, where the second RV and the second transmission times are in a one-to-many relationship.

That is, in the mapping, there is at least one such RV, which may correspond to multiple transmission times.

Therefore, by blind detection of the RV, the position of a specific transmission frequency can be obtained, and the blind detection range of the RV is reduced.

In the embodiment of the present application, in the mapping relationship, a plurality of second RVs exist, and each second RV corresponds to a plurality of second transmission times.

Thus, RV0 is employed in the first few transmissions to facilitate self-detection. And other RVs are adopted in the later transmissions, so that the RV combination gain is favorably obtained. The design utilizes: with the increase of the transmission times, the rule that the probability that the user cannot detect is reduced balances the self-detection and RV combination gains.

In this embodiment of the present application, the RVs in the mapping relationship are all the second RVs. For example, it may be RV 0.

Of course, in the embodiment of the present application, in the mapping relationship, the first RV and the second RV may exist at the same time, and the first transmission number and the second transmission number may also exist at the same time. I.e. there is a portion of RV that may correspond one-to-one to the number of transmissions and another portion of RV that is in a one-to-many relationship with the number of transmissions.

In the embodiment of the present application, in the mapping relationship, a plurality of third RVs and at least one third transmission number exist, where the third RVs and the third transmission number are in a many-to-one relationship.

In the embodiment of the present application, each transmission number in the mapping relationship corresponds to a plurality of RVs.

That is, in the mapping relationship, there are some RVs, and a plurality of RVs may correspond to one transmission number.

In the embodiment of the present application, in the mapping relationship, the second RV and the third RV may exist at the same time, and the second transmission number and the third transmission number may also exist at the same time. That is, there is a part of RV and a part of the number of transmissions, which may be in a one-to-many relationship, and there is another part of RV and another part of the number of transmissions, which may be in a many-to-one relationship.

Alternatively, in the mapping relationship, the first RV, the second RV, and the third RV may exist at the same time, or the first transmission number, the second transmission number, and the third transmission number may exist at the same time. That is, there is a part of RV and a part of the number of transmissions, which may be in a one-to-one relationship, there is another part of RV and another part of the number of transmissions, which may be in a one-to-many relationship, and there is still another part of RV and yet another part of the number of transmissions, which may be in a many-to-one relationship.

In this embodiment of the present application, the processing of the target data based on the mapping relationship includes:

In an embodiment of the present application, when the determined RV is multiple, the method further includes:

blind detection of the plurality of RVs is performed.

In an embodiment of the present application, the method further includes:

and determining user information based on RV obtained by blind detection. For example, it may be a user number or the like.

and processing the target data based on the transmission times or the transmission starting point of the current transmission of the target data.

In the embodiment of the application, the method is realized by a terminal;

the processing of the target data based on the mapping relationship comprises:

In the embodiment of the application, the method is implemented by a network device;

the processing of the target data based on the mapping relationship comprises:

Fig. 4 is a schematic flow chart diagram of a wireless communication method 400 according to an embodiment of the application. The method 400 includes at least some of the following.

In 410, the number of transmissions and/or the transmission start point of the target data is determined based on at least one of the resource location occupied by the target data, the corresponding DMRS and RV.

The resources mentioned in the embodiments of the present application may include at least one of time domain, frequency domain, and code domain resources.

In 420, the target data is processed based on the number of transmissions and/or a transmission start point.

In this embodiment of the application, the determining of the number of transmissions and/or the transmission start point of the target data based on at least one of the resource location occupied by the target data, the corresponding DMRS and the RV may be implemented as follows.

In one implementation, the number of transmissions and/or the transmission start point of the target data is determined based on the resource location occupied by the target data and the corresponding DMRS.

When the frequency domain position is used for determining the transmission times and/or the transmission starting point in combination with the DMRS, the frequency diversity gain can be obtained, and the indication of the transmission times and/or the transmission starting point can be participated.

In one implementation, the transmission times and/or the transmission starting point of the target data are determined based on the DMRS and the RV corresponding to the target data.

When the transmission times and/or the transmission starting point are determined by using the RV and combining the DMRS, the transmission times and/or the transmission starting point can be identified under the limited RV blind detection times.

In one implementation, the number of transmissions and/or the transmission starting point of the target data is determined based on the resource location and RV occupied by the target data.

When the transmission times and/or the transmission starting point are determined by combining the RV and the frequency domain position, the transmission times can be identified under the limited RV blind detection times. By using the frequency domain position, both frequency diversity gain can be obtained and a participation in indicating the transmission sub-transmission can be achieved.

In one implementation, the transmission times and/or the transmission starting point of the target data are determined based on the resource location occupied by the target data, the corresponding DMRS and RV.

Wherein, under the limited RV blind detection times, the transmission times are identified. By using the frequency domain position, both frequency diversity gain can be obtained and a participation in indicating the transmission sub-transmission can be achieved. The DMRS orthogonal resource overhead is reduced, and the user multiplexing rate is improved. And supports a larger number of repetitions.

In the embodiment of the application, information consisting of at least two factors of the resource position, the RV and the DMRS can correspond to the transmission times one by one; or, the information composed of at least two factors of the resource location, the RV, and the DMRS may be multiple, and may be used to indicate the first transmission and the subsequent transmission; or the combination of the information consisting of at least two factors among the resource location, the RV, and the DMRS may correspond one-to-one to the transmission start point.

In the embodiment of the application, the method is realized by a terminal;

In order to more clearly understand the present application, the above method will be illustrated below, and before the illustration, the correspondence between the data transmission and the DMRS is first described.

LTE systems introduce URLLC services that are characterized by ultra-high reliability (e.g., 99.999%) transmissions with very short latency (e.g., 1 ms). To achieve this goal, multiple repeat transmission and semi-persistent transmission techniques have been proposed to address reliability and latency issues.

When the two technologies are combined, namely the same data packet is repeatedly transmitted in the semi-continuous resource, the reliability problem and the low delay problem can be solved. In addition, when a user can initiate uplink transmission immediately according to the user's own needs, the base station side cannot guarantee that the uplink transmission can be detected and identified every time, so that the problem that the base station is unclear about the transmission times can be caused. When the transmission times are unknown, the signals may not be analyzed or the combination of multiple transmission data packets may not be performed. This can be achieved in a number of ways. In fig. 5 to 7, X1, X2, X3, and X4 represent DMRSs, and data transmission in which the underlined DMRSs are located is first data transmission, that is, a transmission start point of data transmission in the case of multiple data transmissions is characterized.

In the mode A, the DMRS corresponds to the transmission times one by one. For example, as shown in fig. 5, X1, X2, X3, and X4 are four DMRS transmissions, and it is indicated by the DMRS transmitted that the current transmission belongs to the number-of-transmissions of data.

Mode B two DMRSs (X1, X2) are used for the first transmission and the subsequent transmission, respectively. As shown in fig. 6, the starting position of the data, that is, the starting position of the first transmission is determined by X1.

Mode C, DMRS combinations are in one-to-one correspondence with transmission start points, and the start positions, that is, the start positions of the first transmissions, are determined by the DMRS combinations, and specifically, the combination of X1 and X1, the combination of X1 and X2, the combination of X2 and X1, and the combination of X2 and X2 represent four start positions, for example, as shown in fig. 7. Wherein the total number of data transmissions may be determined.

The embodiments of the present application will be described below in conjunction with various methods. It is understood that the following methods may be used in combination. It should be understood that the contents of the following entries are only exemplary, and should not be particularly limited to the embodiments of the present application.

An illustration of method 200.

Mode 1: the RVs correspond to the DMRSs one to one, and may be, for example, as shown in table 1.

TABLE 1

DMRS	X1	X2	X3	X4
					RV	0	1	2	3

Specifically, for the three DMRS mapping manners as in fig. 5-7, the corresponding RVs may be as shown in table 2.

TABLE 2

Therefore, the RV version can be directly identified through the DMRS, and RV blind detection can be avoided. Second, multiple RV versions can achieve multiple RV combined gains. In the embodiment of the present application, the blind RV detection may refer to acquiring data with a possible RV.

Mode 2: the RV is one-to-many with the DMRS, for example, as shown in tables 3 and 5.

TABLE 3

DMRS	X1	X2	X3	X4
					RV	0	0	0	0

Specifically, based on table 3, for the three DMRS mapping manners as in fig. 5-7, the corresponding RVs may be as shown in table 4.

TABLE 4

TABLE 5

DMRS	X1	X2	X3	X4
					RV	0	0	1	1

Specifically, based on table 5, for the three DMRS mapping manners in fig. 5-7, the corresponding RVs may be as shown in table 6.

TABLE 6

Thus, RV0 is employed in the first few transmissions to facilitate self-detection. And other RVs are adopted in the later transmissions, so that the RV combination gain is favorably obtained. The design makes use of the rule that the probability that the user cannot detect decreases as the number of transmissions increases. The self-detection and RV combining gains are balanced. And the method is bound with the DMRS at the same time, thereby reducing the blind detection of RV

Mode 3: the RV and DMRS are many-to-one, e.g., as shown in table 7.

TABLE 7

DMRS	X1	X2	X3	X4
					RV
	0,1	0,1	0,1	0,1

Specifically, based on table 7, for the three DMRS mapping manners shown in fig. 5-7, the corresponding RVs may be as shown in table 8.

TABLE 8

An illustration of method 300.

Mode 1: RV corresponds to the number of transmissions one to one, and may be, for example, as shown in table 9 below.

TABLE 9

Number of transmissions	A1	A2	A3	A4
					RV	0	1	2	3

Thus, by blindly detecting the RV, the number of transmissions can be determined. Blind detection of RV can be avoided once transmission sub-outputs are determined.

Mode 2: the RV is one-to-many with the number of transmissions, and may be as shown in tables 10 and 11 below, for example.

Watch 10

Number of transmissions	A1	A2	A3	A4
					RV	0	1	1	1

TABLE 11

Number of transmissions	A1	A2	A3	A4
					RV	0	0	1	1
DMRS	0	1	0	1

Thus, by blindly detecting the RV, and in conjunction with other information, the location of a particular number of transmissions can be obtained. The RV blind detection range is reduced.

Mode 3: RV and the number of transmissions are many-to-one, for example, as shown in table 12 below.

TABLE 12

Number of transmissions	A1	A2	A3	A4
					RV
	0,1	0,1	0,1	0,1

In the case that the RV and the DMRS are many-to-one, the RV may be obtained through blind detection, and other information, such as a user number, may be obtained. For example, table 13 and table 14 may be the correspondence between the number of transmissions configured by two different users and the RV, respectively. The multiple-to-one correspondence relationship between the RV and the DMRS may be for a network device, and at the terminal device side, the correspondence relationship between the RV and the transmission frequency corresponding to each user may be configured, in this case, the correspondence relationship between the RV and the transmission frequency may be a one-to-multiple relationship (for example, table 13) or a one-to-one relationship (for example, table 14).

Watch 13

Number of transmissions	A1	A2	A3	A4
					RV	0	1	0	1

TABLE 14

Number of transmissions	A1	A2	A3	A4
					RV	0	0	1	1

Illustration of the method 400:

the transmission times are determined by any one, two or three combinations of resource positions (frequency domain positions), DMRSs and RV versions. The problem of insufficient DMRS resources can be solved under the condition that the transmission times are not determined only according to the DMRS.

Mode 1: the frequency domain locations are combined with the DMRS, e.g., as shown in table 15 below.

Watch 15

Number of transmissions	A1	A2	A3	A4
					Frequency domain position	0	0	1	1
DMRS	0	1	0	1

Thus, using the frequency domain location, both frequency diversity gain can be achieved and a participation in indicating the transmission sub-transmission can be achieved.

Mode 2: the RV is combined with the DMRS, for example, as shown in table 16 below.

TABLE 16

Number of transmissions	A1	A2	A3	A4
					RV	0	0	1	1
DMRS	0	1	0	1

Therefore, the transmission times can be identified under the limited RV blind detection times.

Mode 3: the RV is combined with the frequency domain, for example, as shown in table 17 below.

TABLE 17

Number of transmissions	A1	A2	A3	A4
					RV	0	0	1	1
Frequency domain position	0	1	0	1

Therefore, the transmission times can be identified under the limited RV blind detection times. By using the frequency domain position, both frequency diversity gain can be obtained and a participation in indicating the transmission sub-transmission can be achieved.

Mode 4: the RV is combined with the frequency domain, for example, as shown in table 18 below.

Watch 18

Transmission ofNumber of times	A1	A2	A3	A4	A1	A2	A3	A4
									RV	0	0	1	1	0	0	1	1
Frequency domain position	0	1	0	1	0	1	0	1
									DMRS	0	0	0	0	0	0	0	0

Thus, transmission failures are identified with a limited number of blind RV detections. By using the frequency domain position, both frequency diversity gain can be obtained and a participation in indicating the transmission sub-transmission can be achieved. The DMRS orthogonal resource overhead is reduced, the user multiplexing rate is improved, and larger repetition times are supported.

In one embodiment, the at least two factors may collectively correspond to a1, a2, A3, and a4 in fig. 5-7 when determining the number of transmissions in terms of frequency domain location, RV, DMRS.

It is to be understood that the foregoing is illustrative only and is not to be construed as limiting the invention in any way.

For example, RV takes the value 0 or 1, and RV may take other values, such as 2 or 3. For example, RV, in the presence of two alternative values, may be RV0 and RV3, that is RV1 mentioned in the above example may be replaced with RV 3.

For example, the number of transmissions a1, a2, A3, and a4 may be four times, or may be other numbers, and the number of transmissions may be equal to or greater than 0.

For example, the number of available DMRS sequences may be other, and may be at least 0 or more.

Fig. 8 is a schematic block diagram of a communication device 600 according to an embodiment of the present application. The communication device 600 may comprise a determining unit 610 and a processing unit 620. The determining unit is configured to determine the aforementioned mapping relationship, or determine the number of transmissions and/or a transmission start point of the target data based on at least one of a frequency domain position occupied by the target data, a corresponding DMRS, and an RV, and the processing unit is configured to process other operations.

In one embodiment, the communication device 600 may perform the

wireless methods

200, 300, and 400 described above, and therefore, for brevity, will not be described again.

Fig. 9 is a schematic structural diagram of a system chip 700 according to an embodiment of the present application. The system chip 700 of fig. 9 includes an input interface 701, an output interface 702, a processor 703 and a memory 704, which may be connected via an internal communication link, and the processor 703 is configured to execute codes in the memory 704.

In one embodiment, when the code is executed, the processor 703 implements the method performed by the network device in the method embodiments. For brevity, no further description is provided herein.

In one embodiment, when the code is executed, the processor 703 implements the method performed by the terminal in the method embodiments. For brevity, no further description is provided herein.

Fig. 10 is a schematic block diagram of a communication device 800 according to an embodiment of the present application. As shown in fig. 10, the communication device 800 includes a processor 810 and a memory 820. The memory 820 can store program codes, and the processor 810 can execute the program codes stored in the memory 820.

In one embodiment, as shown in fig. 10, the communication device 800 may include a transceiver 830, and the processor 810 may control the transceiver 830 to communicate externally.

In one embodiment, the processor 810 may call the program codes stored in the memory 820 to perform corresponding operations of the network device in the method embodiment, which is not described herein for brevity.

In an embodiment, the processor 810 may call the program code stored in the memory 820 to perform corresponding operations of the terminal in the method embodiment, which is not described herein for brevity.

Fig. 11 is a schematic block diagram of a communication system 900 according to an embodiment of the present application. As shown in fig. 11, the communication system 900 includes a terminal device 910 and a network device 920.

The terminal device 910 may be configured to implement the corresponding function implemented by the terminal in the foregoing method, and the network device 920 may be configured to implement the corresponding function implemented by the network device in the foregoing method, for brevity, no further description is provided here.

It should be understood that the processor of the embodiments of the present application may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The Processor may be a general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic device, or discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software modules may be located in ram, flash, rom, prom, or eprom, registers, among other storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor.

It will be appreciated that the memory in the embodiments of the subject application can be either volatile memory or nonvolatile memory, or can include both volatile and nonvolatile memory. The non-volatile Memory may be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically Erasable PROM (EEPROM), or a flash Memory. Volatile Memory can be Random Access Memory (RAM), which acts as external cache Memory. By way of example, but not limitation, many forms of RAM are available, such as Static random access memory (Static RAM, SRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic random access memory (Synchronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic random access memory (DDR SDRAM), Enhanced Synchronous SDRAM (ESDRAM), Synchronous link SDRAM (SLDRAM), and Direct Rambus RAM (DR RAM). It should be noted that the memory of the systems and methods described herein is intended to comprise, without being limited to, these and any other suitable types of memory.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

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

The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a Read Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A method of wireless communication, comprising:

determining a mapping relation between a Redundancy Version (RV) and a demodulation reference signal (DMRS);

processing the target data based on the mapping relation; wherein, in the mapping relationship, there is at least one second RV and a plurality of second DMRS, wherein the second RV and the second DMRS are in a one-to-many relationship.

2. The method of claim 1, wherein at least one first RV and at least one first DMRS are present in the mapping relationship, and wherein the at least one first RV corresponds to the at least one first DMRS on a one-to-one basis.

3. The method of claim 1, wherein in the mapping relationship, there are a plurality of second RVs, each corresponding to a respective plurality of second DMRSs.

4. The method of claim 1, wherein each RV in the mapping relationship corresponds to a plurality of DMRSs.

5. The method of claim 1 wherein the second RV is RV 0.

6. The method of any one of claims 1 to 5, wherein there are a plurality of third RVs and at least one third DMRS in the mapping relationship, wherein the third RV is in a many-to-one relationship with the third DMRS.

7. The method of claim 6, wherein each DMRS in the mapping corresponds to a plurality of RVs.

8. The method according to any one of claims 1 to 5, wherein the processing the target data based on the mapping relationship comprises:

9. The method according to any one of claims 1 to 5, wherein the method is used for multiple transmissions of the target data.

10. The method of claim 9, further comprising:

11. The method of claim 10, wherein determining the number of transmissions corresponding to the current transmission of the target data or a transmission start point of the target data based on the DMRS of the current transmission of the target data comprises:

12. The method according to any of claims 1 to 5, characterized in that the method is implemented by a terminal;

the processing of the target data based on the mapping relationship includes:

13. The method according to any of claims 1 to 5, wherein the method is implemented by a network device;

the processing of the target data based on the mapping relationship includes:

14. A method of wireless communication, comprising:

processing the target data based on the mapping relation; wherein, in the mapping relationship, at least one second RV and a plurality of second transmission times exist, and the second RV and the second transmission times are in a one-to-many relationship.

15. The method of claim 14, wherein in the mapping relationship, there is at least one first RV and at least one first transmission number, and wherein the at least one first RV and the at least one first transmission number have a one-to-one correspondence relationship.

16. The method of claim 14, wherein in the mapping relationship, there are a plurality of second RVs, each second RV corresponding to a plurality of second transmission times.

17. The method of claim 14, wherein the RVs in the mapping are all the second RVs.

18. The method of any of claims 14-17, wherein in the mapping there is a plurality of third RVs and at least one third number of transmissions, wherein the third RVs are many-to-one with the third number of transmissions.

19. The method of claim 18, wherein each number of transmissions in the mapping corresponds to a plurality of RVs.

20. The method according to any one of claims 14 to 17, wherein the processing the target data based on the mapping relationship comprises:

21. The method of claim 20, wherein when the determined RV is multiple, the method further comprises:

blind detection of the plurality of RVs is performed.

22. The method of claim 21, further comprising:

and determining user information based on RV obtained by blind detection.

23. The method according to any one of claims 14 to 17, wherein the processing the target data based on the mapping relationship comprises:

24. The method of any one of claims 14 to 17, wherein the method is used for multiple transmissions of the target data.

25. The method according to any one of claims 14 to 17, characterized in that the method is implemented by a terminal;

the processing of the target data based on the mapping relationship includes:

26. The method according to any one of claims 14 to 17, wherein the method is implemented by a network device;

the processing of the target data based on the mapping relationship includes:

27. A wireless communication device, comprising a determination unit and a processing unit; wherein the content of the first and second substances,

the determination unit is configured to: determining a mapping relation between a Redundancy Version (RV) and a demodulation reference signal (DMRS);

the processing unit is configured to: processing the target data based on the mapping relation; wherein, in the mapping relationship, there is at least one second RV and a plurality of second DMRS, wherein the second RV and the second DMRS are in a one-to-many relationship.

28. The apparatus of claim 27, wherein in the mapping relationship there is at least one first RV and at least one first DMRS, wherein the at least one first RV corresponds one-to-one to the at least one first DMRS.

29. The apparatus of claim 27, wherein in the mapping relationship, there are a plurality of second RVs, each corresponding to a respective plurality of second DMRSs.

30. The apparatus of claim 27, wherein each RV in the mapping corresponds to a plurality of DMRSs.

31. The apparatus of claim 27 wherein the second RV is RV 0.

32. The apparatus of any one of claims 27-31, wherein there is a plurality of third RVs and at least one third DMRS in the mapping relationship, wherein the third RV is in a many-to-one relationship with the third DMRS.

33. The apparatus of claim 32, wherein each DMRS in the mapping corresponds to a plurality of RVs.

34. The apparatus of any of claims 27 to 31, wherein the processing unit is further configured to:

35. The apparatus according to any of claims 27 to 31, wherein the apparatus is configured to transmit the target data multiple times.

36. The apparatus of claim 35, wherein the determining unit is further configured to:

the processing unit is further to: and processing the target data based on the determined transmission times or the transmission starting point.

37. The apparatus of claim 36, wherein the determining unit is further configured to:

38. The apparatus according to any of claims 27 to 31, wherein the apparatus is implemented by a terminal;

the processing unit is further to:

39. The device according to any of claims 27 to 31, wherein the device is implemented by a network device;

the processing unit is further to:

40. A wireless communication device, comprising a determination unit and a processing unit; wherein the content of the first and second substances,

the determination unit is configured to: determining a mapping relation between a Redundancy Version (RV) and the transmission times of data;

the processing unit is configured to: processing the target data based on the mapping relation; wherein, in the mapping relationship, at least one second RV and a plurality of second transmission times exist, and the second RV and the second transmission times are in a one-to-many relationship.

41. The apparatus of claim 40, wherein in the mapping relationship, there is at least one first RV and at least one first transmission number, wherein the at least one first RV is in a one-to-one correspondence with the at least one first transmission number.

42. The apparatus of claim 40, wherein in the mapping relationship, there are a plurality of second RVs, each second RV corresponding to a plurality of second transmission times.

43. The apparatus of claim 40, wherein the RVs in the mapping are all the second RVs.

44. The apparatus of any one of claims 40-43, wherein in the mapping there is a plurality of third RVs and at least one third transmission number, wherein the third RV is in a many-to-one relationship with the third transmission number.

45. The apparatus of claim 44, wherein each number of transmissions in the mapping corresponds to a plurality of RVs.

46. The apparatus of any of claims 40 to 43, wherein the processing unit is further configured to:

47. The apparatus of claim 46, wherein when the determined RV is multiple, the processing unit is further configured to:

blind detection of the plurality of RVs is performed.

48. The device of claim 47, wherein the processing unit is further configured to:

and determining user information based on RV obtained by blind detection.

49. The apparatus of any of claims 40 to 43, wherein the processing unit is further configured to:

50. The device of any one of claims 40 to 43, wherein the device is configured to transmit the target data multiple times.

51. The apparatus according to any of claims 40 to 43, wherein the apparatus is implemented by a terminal;

the processing unit is further to:

52. The device of any of claims 40 to 43, wherein the device is implemented by a network device;

the processing unit is further to:

53. A chip, comprising: a processor for calling and running a computer program from a memory so that a device on which the chip is installed performs the method of any one of claims 1 to 26.

54. A communication device comprising a processor and a memory for storing a computer program, the processor being configured to invoke and execute the computer program stored in the memory to perform the method of any of claims 1 to 26.

55. A computer-readable storage medium for storing a computer program which causes a computer to perform the method of any one of claims 1 to 26.