WO2020199854A1

WO2020199854A1 - Method and device for determining transmission resources

Info

Publication number: WO2020199854A1
Application number: PCT/CN2020/078306
Authority: WO
Inventors: 徐修强; 陈雁; 吕永霞
Original assignee: 华为技术有限公司
Priority date: 2019-03-30
Filing date: 2020-03-06
Publication date: 2020-10-08
Also published as: CN111769899B; CN111769899A

Abstract

Provided by the present application are a method and device for determining transmission resources. In the method, a network device or terminal obtains an RV sequence of RVs corresponding to a plurality of transmission opportunities for the repeated transmission of data, and according to the RV sequence and n, an RV corresponding to the n-th transmission opportunity among transmission opportunities the number of symbols of which meets a preset condition among K transmission opportunities is determined. In the described method, according to the length of a time domain resource and the RV sequence, the time domain resource used by data is associated with the RV used by the data, and the network device or terminal can select to associate an RV containing more information bits to a relatively long time domain resource, thereby improving the decoding capabilities of a receiving end.

Description

Method and device for determining transmission resources

This application claims the priority of a Chinese patent application filed with the State Intellectual Property Office on March 30, 2019, the application number is 201910254149.5, and the application name is "Method and Device for Determining Transmission Resources", the entire content of which is incorporated into this application by reference in.

Technical field

This application relates to the field of communication technology, and in particular to a method and device for determining transmission resources.

Background technique

In the fifth generation (5G) communication system and the future evolution communication system, ultra-reliable & low latency communication (URLLC for short) is one of the important business types. Typical services of URLLC include industrial automation control, remote driving, telemedicine, etc. The reliability requirements of these services are often above 99.999%. Therefore, in URLLC business, low error rate has become one of the most critical indicators.

Summary of the invention

This application provides a method and device for determining transmission resources, which can reduce the signaling overhead of the communication system.

In order to achieve the above objectives, this application provides the following technical solutions:

In a first aspect, a method for determining transmission resources is provided, including: obtaining RV sequences for determining RVs corresponding to K transmission occasions, the K transmission occasions being used for repeated transmission of data, and K is greater than 1. Integer; according to the RV sequence and n, determine the RV corresponding to the first transmission opportunity, where the first transmission opportunity is the nth transmission among the transmission opportunities where the number of symbols in the K transmission opportunities meets a preset condition Timing, n is an integer greater than 0 and less than or equal to K.

It should be noted that the number of information bits contained in the data (information bits refer to the useful bits to be actually sent) is related to the RV used in the data. In RV0, RV2, RV3 and RV1, under normal circumstances, the data using RV0 contains the most information bits. The amount of redundant information contained in the data is related to the length of time domain resources occupied by the data. The number of information bits and redundant information contained in the data directly affect the decoding capability of the receiving end. In the first aspect, according to the length of the time domain resource and the RV sequence, the time domain resource used in the data is associated with the RV used in the data. The network device or terminal can choose to associate the RV with more information bits to the longer Time domain resources, thereby improving the decoding capability of the receiving end.

In a possible implementation manner, the RV corresponding to the first transmission opportunity is the (mod(n-1,4)+1)th RV in the RV sequence, and mod is a remainder function. In this possible implementation, if the first transmission opportunity is the transmission opportunity that contains the largest number of symbols among the K transmission opportunities, when the first RV in the RV sequence is RV0, the transmission opportunity with the most symbol data can be guaranteed One of the transmission opportunities in corresponds to RV0, thereby improving the decoding performance of the receiving end. Moreover, when there are multiple transmission opportunities with the largest number of symbols, at least two of the multiple transmission opportunities with the largest number of symbols correspond to different RVs. In this case, the decoding capability of the receiving end can be improved.

In a possible implementation, the preset condition is: the number of symbols is the largest, or the number of symbols is greater than or equal to the first threshold, or the number of symbols is within a preset or configured range of the number of symbols, or the number of symbols is less than Equal to the second threshold. This possible implementation manner can flexibly determine the RVs corresponding to the transmission opportunities at different positions among the K transmission opportunities.

In a possible implementation manner, the method further includes: determining an RV corresponding to a second transmission opportunity according to the RV sequence and m, where the second transmission opportunity is a symbol in the K transmission opportunities For the m-th transmission opportunity among the transmission opportunities whose number does not satisfy the preset condition, m is an integer greater than 0 and less than or equal to K.

In a possible implementation, the RV corresponding to the second transmission opportunity is the (mod(m+M ₀ -1, 4)+1)th RV in the RV sequence, and M ₀ is greater than or equal to 0 The integer.

In a possible implementation, the M ₀ is 0, or the M ₀ is a configured integer value, or the M ₀ is a transmission where the number of symbols in the K transmission occasions meets a preset condition. The number of opportunities.

In a second aspect, a device for determining transmission resources is provided, including: a first processing unit and a second processing unit; the first processing unit is configured to obtain an RV sequence used to determine RVs corresponding to K transmission opportunities, The K transmission timings are used to repeatedly transmit data, and K is an integer greater than 1. The second processing unit is configured to determine the RV corresponding to the first transmission timing based on the RV sequence and n, where The first transmission opportunity is the nth transmission opportunity among transmission opportunities where the number of symbols in the K transmission opportunities meets a preset condition, and n is an integer greater than 0 and less than or equal to K.

In a possible implementation manner, the RV corresponding to the first transmission opportunity is the (mod(n-1,4)+1)th RV in the RV sequence, and mod is a remainder function.

In a possible implementation, the preset condition is: the number of symbols is the largest, or the number of symbols is greater than or equal to the first threshold, or the number of symbols is within a preset or configured range of the number of symbols, or the number of symbols is less than Equal to the second threshold.

In a possible implementation manner, the second processing unit is further configured to determine an RV corresponding to a second transmission opportunity according to the RV sequence and m, where the second transmission opportunity is the K transmissions The number of symbols in the timing does not satisfy the m-th transmission timing in the transmission timing of the preset condition, and m is an integer greater than 0 and less than or equal to K.

In a third aspect, an apparatus for determining transmission resources is provided, including a processor. The processor is connected to the memory, the memory is used to store computer-executed instructions, and the processor executes the computer-executed instructions stored in the memory, so as to implement any one of the methods provided in the first aspect. Among them, the memory and the processor can be integrated together or can be independent devices. In the latter case, the memory may be located in the device for determining the transmission resource or outside the device for determining the transmission resource.

In a possible implementation manner, the processor includes a logic circuit and also includes at least one of an input interface and an output interface. Among them, the output interface is used to execute the sending action in the corresponding method, and the input interface is used to execute the receiving action in the corresponding method.

In a possible implementation manner, the device for determining the transmission resource further includes a communication interface and a communication bus, and the processor, the memory and the communication interface are connected through the communication bus. The communication interface is used to perform the sending and receiving actions in the corresponding method. The communication interface may also be called a transceiver. Optionally, the communication interface includes at least one of a transmitter and a receiver. In this case, the transmitter is used to perform the sending action in the corresponding method, and the receiver is used to perform the receiving action in the corresponding method.

In a possible implementation manner, the device for determining the transmission resource exists in the form of a chip product.

In a fourth aspect, a computer-readable storage medium is provided, including instructions, which when run on a computer, cause the computer to execute any of the methods provided in the first aspect.

In the fifth aspect, a computer program product containing instructions is provided. When the instructions are run on a computer, the computer can execute any of the methods provided in the first aspect.

For the technical effects brought about by any one of the implementation manners of the second aspect to the fifth aspect, refer to the technical effects brought about by the corresponding implementation manner in the first aspect, which will not be repeated here.

Among them, it should be noted that various possible implementation manners of any one of the above aspects can be combined on the premise that the solutions are not contradictory.

Description of the drawings

FIG. 1 is a schematic diagram of the composition of a network architecture provided by an embodiment of the application;

2 and 3 are schematic diagrams of time domain resources occupied by data provided by an embodiment of this application;

FIG. 4 is a flowchart of a method for determining transmission resources according to an embodiment of the application;

5 to 9 are schematic diagrams of time domain resources occupied by various data provided by embodiments of this application;

FIG. 10 is a flowchart of a method for determining transmission resources according to an embodiment of the application;

FIG. 11 is a schematic diagram of the composition of a communication device provided by an embodiment of the application;

12 and 13 are respectively schematic diagrams of the hardware structure of a communication device provided by an embodiment of the application;

FIG. 14 is a schematic diagram of the hardware structure of a terminal provided by an embodiment of the application;

FIG. 15 is a schematic diagram of the hardware structure of a network device provided by an embodiment of this application.

detailed description

In the description of this application, unless otherwise specified, "/" means "or". For example, A/B can mean A or B. The "and/or" in this article is only an association relationship describing the associated objects, which means that there can be three relationships, for example, A and/or B, which can mean: A alone exists, A and B exist at the same time, and B exists alone These three situations. In addition, "at least one" means one or more, and "plurality" means two or more. The words "first" and "second" do not limit the quantity and order of execution, and the words "first" and "second" do not limit the difference.

It should be noted that in this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or illustrations. Any embodiment or design solution described as "exemplary" or "for example" in this application should not be construed as being more preferable or advantageous than other embodiments or design solutions. To be precise, words such as "exemplary" or "for example" are used to present related concepts in a specific manner.

The technical solutions provided by the embodiments of the present application can be applied to various communication systems. For example, a long term evolution (LTE) communication system, a new radio (NR) communication system using 5G communication technology, a future evolution system, or multiple communication convergence systems, etc.

The technical solutions provided by the embodiments of the present application can be applied to various communication scenarios. For example, machine-to-machine (M2M), macro and micro communications, enhanced mobile broadband (eMBB), ultra-reliable&low latency communication (URLLC), Massive machine type communication (mMTC), internet of things (IoT), industrial IoT (IIoT) and other scenarios.

Figure 1 shows a schematic diagram of a communication system to which the technical solution provided in this application is applicable. The communication system may include at least one network device (only one is shown in FIG. 1) and at least one terminal (six are shown in FIG. 1, which are terminal 1 to terminal 6). One or more of the terminal 1 to the terminal 6 may communicate with the network device to transmit one or more of data (uplink data and/or downlink data) and signaling. In addition, the terminal 4 to the terminal 6 may also form another communication system to which the technical solution provided in this application is applicable. In this case, the sending entity and the receiving entity are both terminals. For example, terminal 4 to terminal 6 can form a car networking system, then terminal 4 can send data or signaling to terminal 5, and terminal 5 receives data or signaling sent by terminal 4.

For the convenience of description, the following description is based on an example in which the technical solutions provided in the embodiments of the present application are applied between a network device and a terminal. It is understandable that when the technical solution provided by the embodiments of the present application is applied between two terminals (denoted as terminal A and terminal B), the network equipment in the following embodiments is replaced by terminal A, and the terminal is replaced by terminal B is fine.

The network architecture and service scenarios described in the embodiments of the present application are intended to more clearly illustrate the technical solutions of the embodiments of the present application, and do not constitute a limitation on the technical solutions provided in the embodiments of the present application. A person of ordinary skill in the art can know that with the evolution of network architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of the present application are equally applicable to similar technical problems.

A network device is an entity on the network side that is used to send signals, or receive signals, or send and receive signals. The network equipment may be a device deployed in a radio access network (RAN for short) to provide a wireless communication function for a terminal, for example, a base station. The network equipment may be various forms of macro base stations, micro base stations (also called small stations), relay stations, access points (AP for short), etc., and may also include various forms of control nodes, such as network controllers. The control node may be connected to multiple base stations and configure resources for multiple terminals under the coverage of the multiple base stations. In systems using different wireless access technologies, the names of devices with base station functions may be different. For example, the global system for mobile communication (GSM) or code division multiple access (CDMA) network can be called base transceiver station (BTS), and broadband code It can be called a base station (NodeB) in wideband code division multiple access (WCDMA for short), and it can be called an evolved NodeB (evolved NodeB, eNB or eNodeB) in a 5G communication system or an NR communication system. It is called the next generation node base station (gNB for short), and this application does not limit the specific name of the base station. The network equipment can also be the wireless controller in the cloud radio access network (CRAN) scenario, the network equipment in the future evolved public land mobile network (PLMN), and the transmission and receiving node (transmission and reception point, TRP for short), etc.

A terminal is an entity on the user side that is used to receive signals, or send signals, or receive signals and send signals. The terminal is used to provide users with one or more of voice services and data connectivity services. The terminal can also be called user equipment (UE), terminal equipment, access terminal, user unit, user station, mobile station, remote station, remote terminal, mobile equipment, user terminal, wireless communication equipment, user agent or User device. The terminal can be a mobile station (MS), subscriber unit (subscriber unit), drone, IoT device, station (ST) in wireless local area networks (WLAN), cell phone (cellular phone), smart phone (smart phone), cordless phone, wireless data card, tablet computer, session initiation protocol (SIP) phone, wireless local loop (wireless local loop, WLL) station, Personal digital assistant (PDA) equipment, laptop computer, machine type communication (MTC) terminal, handheld device with wireless communication function, computing device or connected to wireless modem Other processing equipment, vehicle-mounted equipment, wearable equipment (also called wearable smart equipment). The terminal may also be a terminal in a next-generation communication system, for example, a terminal in a 5G communication system or a terminal in a future evolved PLMN, a terminal in an NR communication system, and so on.

In order to facilitate the understanding of this application, here is a brief introduction to some concepts involved in the embodiments of this application.

1. Time slot

In NR, for a normal cyclic prefix (cyclic prefix, CP for short), one time slot includes 14 orthogonal frequency division multiplexing (OFDM for short) symbols (symbols for short). For extended CP, 1 slot contains 12 symbols.

For ease of description, in the embodiments of the present application, unless otherwise specified, one time slot includes 14 symbols. In the time slot, 14 symbols are numbered in order from smallest to largest, with the smallest number being 0 and the largest number being 13. In the embodiment of the present application, the symbol whose index (ie, the number) is i is marked as symbol #i, and a time slot includes symbols #0 to symbol #13. In addition, the time slot with the index (ie, the number) j is denoted as time slot #j in the following in this application. j is an integer greater than or equal to 0, and i is an integer greater than or equal to 0 and less than or equal to 13.

2. Transmission scenarios applicable to this application

The transmission scenarios applicable to this application include: uplink transmission based on dynamic scheduling, downlink transmission based on dynamic scheduling, downlink transmission based on Semi-Persistent Scheduling (SPS), and uplink transmission without authorization.

The uplink unlicensed transmission means that the uplink transmission of the terminal does not need to be completed through the dynamic scheduling of the network equipment. Specifically, when the uplink data arrives (the data arrival in the embodiment of this application means that the data has been processed and can be sent), the terminal does not need to send a scheduling request (scheduling request, referred to as SR) to the network device and wait for the network device's Dynamic grant (dynamic grant), but can directly use the transmission resources pre-allocated by the network device and the designated transmission parameters to send uplink data to the network device.

Uplink authorization-free transmission can also be called: uplink scheduling-free transmission, uplink data transmission without dynamic grant (UL data transmission without dynamic grant), uplink transmission without dynamic scheduling, configured grant (CG) transmission, high-level configuration transmission Wait.

There are two types of uplink unauthorized transmission: physical uplink shared channel (PUSCH) transmission based on the first type of configuration authorization (type 1 PUSCH transmission with a configured grant, or PUSCH transmission with type 1 configured grant, Or type 1 configured grant PUSCH transmission and type 2 PUSCH transmission with a configured grant, or PUSCH transmission with type 2 configured grant, or type 2 configured PUSCH transmission based on the second type of configuration authorization.

The existing configuration method of PUSCH transmission based on the first type of configuration authorization is: the network device configures all transmission resources and transmission parameters for the terminal through high-level parameters (such as ConfiguredGrantConfig). For example: time domain resource cycle, open-loop power control related parameters, waveform, redundancy version (RV) sequence, number of repetitions, frequency hopping mode, resource allocation type, hybrid automatic repeat request (hybrid automatic repeat request) , HARQ for short) process number, demodulation reference signal (de-modulation reference signal, DMRS) related parameters, modulation and coding scheme (MCS) table, resource block group (RBG) size , And all transmission resources and transmission parameters including time domain resources, frequency domain resources, MCS, etc. After receiving the high-level parameters, the terminal can immediately use the configured transmission parameters to perform PUSCH transmission on the configured time-frequency resources.

The existing configuration method of PUSCH transmission based on the second type of configuration authorization is divided into the following two steps: First, the network device configures part of the transmission resources and transmission parameters to the terminal through high-level parameters (such as ConfiguredGrantConfig). For example: time domain resource cycle, open-loop power control related parameters, waveform, RV sequence, number of repetitions, frequency hopping mode, resource allocation type, HARQ process number, DMRS related parameters, MCS table, RBG size. After that, the network device sends downlink control information (DCI) (for example, configuration-specific DCI) to the terminal, so that the terminal activates PUSCH transmission authorized based on the second type of configuration, and configures both time domain resources and frequency domain at the same time. Transmission resources and transmission parameters including resources, DMRS related parameters, MCS, etc. It should be noted that the PUSCH transmission authorized by the second type of configuration can be used after being activated.

Hereinafter, the PUSCH transmission authorized based on the first type of configuration is referred to as type 1 uplink unlicensed transmission for short, and the PUSCH transmission based on the second type of configuration authorized is referred to as type 2 uplink unlicensed transmission for short.

3. Transmission Occasion (TO)

The transmission timing includes time domain resources for transmitting data once. A transmission opportunity includes one or more symbols. When there are multiple transmission opportunities and multiple transmission opportunities are used for repeated transmission, multiple copies of the same data are repeatedly sent on multiple transmission opportunities. At this time, one data transmission at one transmission opportunity can be called a repeated transmission. The multiple copies of the same data refer to multiple copies of the same or different RVs obtained after the same information bit is subjected to channel coding.

4. Repeated transmission (Repetition) and slot aggregation (Slot aggregation) transmission

In order to improve the reliability of data transmission, the NR communication system supports time slot aggregation transmission and repeated transmission of data. Time slot aggregation transmission and repeated transmission refer to the transmission of multiple copies of the same data, but they are defined because of different transmission scenarios. Different names. Among them, the transmission method of transmitting multiple copies of the same data based on dynamic scheduling is called time slot aggregation transmission. The transmission method based on SPS or uplink unauthorized transmission of multiple copies of the same data is called repeated transmission. SPS-based repeated transmission may also be referred to as bundling transmission.

Since the transmission timing used to transmit a PUSCH or physical downlink shared channel (physical downlink shared channel, PDSCH for short) cannot include a slot boundary and an uplink/downlink symbol switching point (DL/UL switching point). Therefore, in the time slot aggregate transmission or repeated transmission, it supports different times of repeated transmission and uses transmission opportunities containing different numbers of symbols to make full use of the available symbols in the time slot, thereby reducing data transmission delay and improving transmission reliability the goal of. Among them, the time slot boundary refers to the boundary between two time slots. The uplink and downlink symbol switching point refers to the boundary between the uplink symbol and the downlink symbol. Available symbols refer to symbols that can be used for PUSCH or PDSCH transmission. Whether a symbol is available depends on the application scenario. For example, for downlink data transmission, uplink symbols are unusable symbols. For uplink data transmission, downlink symbols are unusable symbols.

Exemplarily, in a time-division duplexing (TDD) system, referring to Figure 2, it is assumed that the network device configures the first symbol (ie symbol #0) and the eighth symbol ( That is, symbol #7) is a downlink symbol (represented by D), the second symbol (ie, symbol #1) and the ninth symbol (ie, symbol #8) are configured as flexible symbols (represented by F), and other symbols are configured for uplink Symbol (indicated by U). After the uplink data is ready on the 12th symbol of slot #1 (ie symbol #11), in order to reduce the waiting time delay, it should be allowed to start transmitting the data from the 13th symbol of slot #1 (ie symbol #12). Upstream data. Otherwise, the transmission of the uplink data will not start until the third symbol (ie symbol #2) of time slot #2, and a delay of 4 symbols will be introduced. For the URLLC service, which is extremely delay-sensitive, this delay Is unacceptable. In order to ensure the reliability of data transmission at the same time, assuming that the multiple repeated transmissions of the uplink data require a total of 10 symbols, as shown in Figure 2, the uplink data can start from the 13th symbol of slot #1 (ie symbol #12). ) Starts and ends at the 12th symbol (ie symbol #11) of time slot #2, which is repeated 3 times in total. Among them, the first repetition is located on the 13th symbol (ie symbol #12) and the 14th symbol (ie symbol #13) of time slot #1, and the second repetition is located on the third symbol (ie symbol #13) of time slot #2. That is, the symbol #2) to the 7th symbol (that is, the symbol #6), and the third repetition is located on the 10th symbol (that is, the symbol #9) to the 12th symbol (that is, the symbol #11) of slot #2 .

5. Existing time domain resource allocation form

The time domain resource allocation table is used to allocate time domain resources.

In NR, the network equipment configures a time domain resource allocation table for the terminal through high-level signaling. The table contains at most 16 entries (that is, 16 entries). After configuring the time domain resource allocation table, refer to Table 1. For uplink transmission based on dynamic scheduling, downlink transmission based on dynamic scheduling, downlink transmission based on SPS, and type 2 uplink unlicensed transmission, network equipment can use DCI (for example, DCI The Time domain resource assignment field) indicates which row of the time domain resource allocation table is allocated to the terminal. For type1 uplink unauthorized transmission, network equipment can use radio resource control (RRC) signaling (for example, the timeDomainAllocation IE parameter in RRC signaling) to indicate which row in the time domain resource allocation table to allocate to the terminal Resources.

Table 1

Each row in the time-domain resource allocation table used for uplink transmission contains 3 parameters: K ₂ , mapping type (mappingType), start symbol and length (startSymbolAndLength). Among them, K ₂ is the time domain offset of PUSCH transmission. The time slot for PUSCH transmission may be time slot #(n1+K ₂ ), where n1 is the time slot where the DCI of the PUSCH is scheduled. The mapping type is used to indicate the mapping type of PUSCH transmission, and the mapping type can be mapping type A or mapping type B. The start symbol and length are also called Start and Length Indicator Value (SLIV), which is used to determine the start symbol S of the allocated time domain resource in the time slot (that is, the time domain resource The first symbol in) and the length L (that is, the number of symbols contained in the time domain resource).

Each row in the time domain resource allocation table used for downlink transmission contains 3 parameters: K ₀ , mapping type, starting symbol, and length. Among them, K ₀ is the time domain offset of PDSCH transmission. The time slot for PDSCH transmission may be time slot #(n2+K ₀ ), where n2 is the time slot in which the DCI of the PDSCH is scheduled. The mapping type is used to indicate the mapping type of PDSCH transmission, and the mapping type can be mapping type A or mapping type B. The start symbol and length are also called SLIV, which are used to determine the start symbol S (that is, the first symbol in the time domain resource) and length L (that is, the time domain resource) of the allocated time domain resource in the time slot. The number of symbols included).

If the network device does not configure the time domain resource allocation table for the terminal through high-level signaling, the terminal uses the default table. For example, the default uplink time domain resource allocation table can be the tables 6.1.2.1.1-2, 6.1.2.1.1-3, and 6.1.2.1.1-4 in 3GPP TS38.214. The default downlink time domain resource allocation table can be the tables 5.1.2.1.1-2, 5.1.2.1.1-3, 5.1.2.1.1-4, 5.1.2.1.1-5 in 3GPP TS38.214.

Exemplarily, the specific content contained in Table 6.1.2.1.1-2 in the default uplink time domain resource allocation table can be found in Table 2. Among them, the value of j in Table 2 is related to the uplink sub-carrier spacing. For details, see Table 3.

Table 2

table 3

u _PUSCH u _PUSCH	jj
00	11
11	11
22	22

Note: u _PUSCH is a parameter used to characterize the uplink subcarrier spacing. 0, 1, and 2 in the left column of Table 3 each represent an uplink subcarrier interval.

On the basis that the terminal knows the 16 combinations configured or defaulted through RRC signaling, for type1 unlicensed transmission, the network device indicates to the terminal which of the 16 combinations through RRC signaling (for example, the timeDomainAllocation parameter in RRC signaling) A combination. Since type1 unlicensed transmission has a special RRC parameter (for example, timeDomainOffset) to indicate the time slot offset, in this case, the terminal determines the starting time slot of the unlicensed transmission resource according to timeDomainOffset, for example, when timeDomainOffset indicates When the value of is 100, the terminal determines that the unlicensed transmission resource starts at time slot #100. Therefore, for type1 unauthorized transmission, the terminal does not use K ₂ in the combination.

6. The existing method of determining the RV used for repeated transmission of data

In order to enable the receiving end to use the incremental redundancy (IR) combined receiving method to improve the decoding capability, the network device will configure different RVs for different times of repeated transmission. In the prior art, the following method is used to determine the RV used for different times of repeated transmission:

For time slot aggregation transmission based on dynamic scheduling, the RV used for each PDSCH transmission or PUSCH transmission passes through the transmission timing index p (0≦p<K) corresponding to this transmission. K is the time slot aggregation factor, that is, the repetitive transmission The number of time slots) and the rv _id indicated by the RV indicator field in the DCI used to schedule the PDSCH or PUSCH are jointly determined, and the rv _id refers to the index of the RV. For example, as specified in 3GPP TS38.214, the RV used for the transmission timing with index p for transmitting PDSCH is determined by Table 4, and the RV used for the transmission timing with index p for transmitting PUSCH is determined by Table 5. "Mod" in Table 4 and Table 5 means "take remainder". The transmission timing with index p may also be referred to as the p-th transmission timing.

Table 4

table 5

For repeated transmissions based on SPS or uplink license-free, the RV used for a PUSCH repeated transmission is the index p (0<p≦K, K is the number of repeated transmissions) and the high-level pass parameters. The RV sequence of the repK-RV configuration (for example, it can be {0,0,0,0} or {0,3,0,3} or {0,2,3,1}) is jointly determined. For example, the RV used for PUSCH transmission on the transmission occasion with index p is the (mod(p-1,4)+1)th value in the configured RV sequence. Exemplarily, if the RV sequence configured by the upper layer of the network device through the parameter repK-RV is {0,2,3,1}, based on the example shown in FIG. 2, according to the RV determination method adopted for repeated transmission in the prior art, Referring to Figure 3, the three repeated transmissions in Figure 3 use RV0, RV2, and RV3 respectively. In the embodiment of the present application, RV0 refers to RV with index 0, RV2 refers to RV with index 2, RV3 refers to RV with index 3, and RV1 refers to RV with index 1.

The embodiment of the present application provides a method for determining transmission resources, as shown in FIG. 4, including:

401. Obtain RV sequences used to determine RVs corresponding to K transmission opportunities, where K transmission opportunities are used to repeatedly transmit data, and K is an integer greater than 1.

The execution subject of the embodiment of the present application may be a communication device, for example, a network device, a terminal, and so on. This application can be applied to uplink or downlink transmission based on dynamic scheduling, can also be applied to uplink unlicensed transmission or SPS-based downlink transmission, and can also be applied to other uplink or downlink transmissions.

This application does not limit the method for determining the RV sequence. Illustratively, the specific methods that can be used are:

Method 1. The network device and the terminal agree on the RV sequence, and the network device or the terminal can determine the RV sequence according to the agreement.

Method 2. The RV sequence is stipulated by the protocol, and the network device or terminal can determine the RV sequence according to the protocol.

Method 3. For the terminal, the network equipment configures the RV sequence for the terminal through RRC signaling or medium access control (medium access control, MAC) control element (CE) signaling or DCI (for example, {0,2 ,3,1} or {0,3,0,3}), the terminal can determine the RV sequence according to the configuration of the network device. For network equipment, the network equipment can determine the RV sequence by itself.

Method 4. For the terminal, the network device configures an RV for the terminal through RRC signaling or MAC CE signaling or DCI, and the terminal determines the RV sequence according to the RV. For example, when the RV configured by the network device for the terminal is RV0, the terminal determines that the RV sequence is {0,2,3,1} or {0,3,0,3}. When the RV configured by the network device for the terminal is RV2, the terminal determines that the RV sequence is {2,3,1,0}. When the RV configured by the network device for the terminal is RV3, the terminal determines that the RV sequence is {3,1,0,2} or {3,0,3,0}. When the RV configured by the network device for the terminal is RV1, the terminal determines that the RV sequence is {1,0,2,3}. For network equipment, the network equipment can determine the RV sequence by itself.

Optionally, the method further includes: determining K transmission opportunities. Among them, the communication device may first determine the RV sequence, and then determine the K transmission opportunities, or may first determine the K transmission opportunities, and then determine the RV sequence.

In this application, the value of K may be configured by the network equipment to the terminal through RRC signaling, MAC CE signaling, or DCI, may also be agreed upon by the terminal and the network equipment, or may be specified by the protocol.

This application does not limit the method of determining K transmission timings. For example, the specific methods that can be adopted are:

Method 1. The network device and the terminal agree on K transmission opportunities, and the network device or terminal can determine K transmission opportunities according to the agreement.

Method 2. K transmission timings are stipulated by the protocol, and the network device or terminal can determine K transmission timings according to the protocol.

Method 3: The network device configures K transmission opportunities for the terminal through RRC signaling or MAC CE signaling or DCI, and the terminal can determine K transmission opportunities according to the configuration of the network device.

Method 4. The network equipment configures the first transmission opportunity among the K transmission opportunities for the terminal through RRC signaling or MAC CE signaling or DCI, and the terminal determines other K- according to the first transmission opportunity and the rules agreed by the network equipment and the terminal. 1 transmission timing. Exemplarily, the agreed rule may be: two adjacent transmission opportunities are continuous in time.

This application does not limit the time domain positions of the K transmission occasions and the number of symbols included. Examples include:

Example 1. There may be multiple transmission opportunities in the same time slot among the K transmission opportunities, or there may be only one transmission opportunity in each time slot.

Example 2. The number of symbols contained in different transmission opportunities may be the same or different.

Example 3: Two adjacent transmission opportunities can be continuous in time or discontinuous in time.

402. Determine the RV corresponding to the first transmission opportunity according to the RV sequence and n.

Wherein, the first transmission opportunity is the nth transmission opportunity among transmission opportunities where the number of symbols in the K transmission opportunities meets the preset condition, and n is an integer greater than 0 and less than or equal to K.

Among them, the number of symbols can be the number of available symbols or the total number of symbols. Among them, the available symbols refer to symbols that can be used for PUSCH or PDSCH transmission. For example, uplink symbols are symbols that cannot be used for PDSCH transmission, and downlink symbols are symbols that cannot be used for PUSCH transmission. In the system, whether symbols can be used for PDSCH or PUSCH transmission can be configured by network equipment through RRC signaling, MAC CE signaling, or DCI, or agreed upon by the terminal and network equipment, or specified by the protocol (for example, through 3GPP TS38.213 Section 11.1).

The nth transmission timing can be the nth transmission timing when the transmission timing that meets the preset condition is arranged from front to back (or back to front) in time, or the transmission timing that meets the preset condition is the number of symbols It is the n-th transmission timing when it is arranged from largest to smallest (or from smallest to largest). Unless otherwise specified in the following, the nth transmission opportunity refers to the nth transmission opportunity when the transmission opportunity meeting the preset condition is arranged from front to back in time.

After step 402, referring to FIG. 4, optionally, the method further includes: 403. Using the RV corresponding to the first transmission opportunity to send or receive data.

Specifically, when the method is applied to uplink transmission, if the execution subject is the terminal, in step 403, the terminal uses the RV corresponding to the first transmission opportunity to send data. If the execution subject is a network device. In step 403, the network device uses the RV corresponding to the first transmission opportunity to receive data.

When the method is applied to downlink transmission, if the execution subject is a network device, in step 403, the network device uses the RV corresponding to the first transmission opportunity to send data. If the execution subject is a terminal, in step 403, the terminal uses the RV corresponding to the first transmission opportunity to receive data.

Before step 402, the method may further include: (11) determining a transmission opportunity that satisfies a preset condition among the K transmission opportunities.

If the transmission timing that meets the preset condition is N transmission timings, the network device or terminal sends or receives at most N repetitions on the N transmission timings. Specifically, when all the symbols in each of the N transmission opportunities can be used for data transmission, the network device or terminal transmits or receives a repetition at each transmission opportunity of the N transmission opportunities. When there are symbols in the transmission opportunities that cannot be used for data transmission among the N transmission opportunities, the terminal cancels the transmission of the data on these transmission opportunities, and the network device or terminal sends or receives less than N repetitions on the N transmission opportunities.

It should be noted that the number of information bits contained in the data (information bits refer to the useful bits to be actually sent) is related to the RV used in the data. In RV0, RV2, RV3 and RV1, under normal circumstances, the data using RV0 contains the most information bits. The amount of redundant information contained in the data is related to the length of time domain resources occupied by the data. The number of information bits and redundant information contained in the data directly affect the decoding capability of the receiving end. In the embodiment of the present application, the time domain resource used by the data is associated with the RV used by the data according to the length of the time domain resource and the RV sequence. The network device or terminal can choose to associate the RV with more information bits to the larger Long time domain resources, thereby improving the decoding ability of the receiving end and reducing the bit error rate of the communication system.

The preset condition can be any one of preset condition 1 to preset condition 9.

Preset condition 1: The number of symbols is w-th, and w is an integer greater than 0 and less than or equal to K.

Preset condition 2: The number of symbols is the largest.

Precondition 3: The number of symbols is the least.

Preset condition 4: The number of symbols is greater than or equal to the first threshold (the first threshold is recorded as L1, and L1 is an integer greater than 0).

Preset condition 5: The number of symbols is less than or equal to the second threshold (the second threshold is recorded as L2, and L2 is an integer greater than 0).

Preset condition 6: The number of symbols is within the preset or configured range of the number of symbols. Specifically, the number of symbols may be greater than the third threshold (the third threshold is denoted as L3, and L3 is an integer greater than or equal to 0) less than the fourth threshold ( The fourth threshold is denoted as L4, and L4 is an integer greater than 1).

Preset condition 7: the number of symbols is greater than the fifth threshold (the fifth threshold is denoted as L5, and L5 is an integer greater than or equal to 0).

Preset condition 8: the number of symbols is equal to the sixth threshold (the sixth threshold is denoted as L6, and L6 is an integer greater than 0).

Preset condition 9: the number of symbols is less than the seventh threshold (the seventh threshold is denoted as L7, and L7 is an integer greater than 1).

For the network device, any one or more of the above L1 to L7 values may be determined by the network device, or agreed upon by the terminal and the network device, or specified by the protocol. For the terminal, any one or more of the above L1 to L7 values may be configured by the network device to the terminal through RRC signaling, MAC CE signaling, or DCI, or agreed upon by the terminal and the network device, or specified by the protocol.

For any one of the foregoing preset conditions, the RV corresponding to the first transmission opportunity may be determined by the following method one or two.

method one,

The RV corresponding to the first transmission opportunity is: the (mod(n-1,4)+1)th RV in the RV sequence, and n is an integer greater than 0 and less than or equal to N.

If the first transmission opportunity is the transmission opportunity that contains the largest number of symbols among the K transmission opportunities, when the first RV in the RV sequence is RV0, mode one can ensure that one of the transmission opportunities with the most symbol data corresponds to one transmission opportunity RV0, thereby improving the decoding performance of the receiving end. Moreover, when there are multiple transmission opportunities with the largest number of symbols, at least two of the multiple transmission opportunities with the largest number of symbols correspond to different RVs. In this case, the decoding capability of the receiving end can be improved.

In the way, for example, it is assumed that the preset condition is: the number of symbols is the largest, and the RV sequence is: {RVa, RVb, RVc, RVd}. If the position of the 5 transmission opportunities in the time domain and the symbols occupied are (a) in Figure 5, the first transmission opportunity, the second transmission opportunity and the fifth transmission opportunity of the 5 transmission opportunities correspond to RV are RVa, RVb and RVc. If the position of the five transmission opportunities in the time domain and the symbols occupied are (b) in Figure 5, the first transmission opportunity, the fourth transmission opportunity, and the fifth transmission opportunity of the five transmission opportunities correspond to RV are RVa, RVb and RVc. If the position of the five transmission opportunities in the time domain and the symbols occupied are (c) in Figure 5, the third, fourth and fifth transmission opportunities of the five transmission opportunities correspond to RV are RVa, RVb and RVc. If the position of the 5 transmission opportunities in the time domain and the symbols occupied are (d) in Figure 5, the first transmission opportunity, the second transmission opportunity and the third transmission opportunity of the 5 transmission opportunities correspond to RV are RVa, RVb and RVc.

In the way, for example, it is assumed that the preset condition is: the number of symbols is the largest, and the RV sequence is: {RVa, RVb, RVc, RVd}. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (a) in Fig. 6, the RV corresponding to the second transmission opportunity among the three transmission opportunities is RVa. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (b) in Figure 6, the RV corresponding to the second transmission opportunity of the three transmission opportunities is RVa. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (c) in FIG. 6, the RV corresponding to the second transmission opportunity among the three transmission opportunities is RVa.

Method two,

The RV corresponding to the first transmission opportunity is: the (mod(n+s-1,4)+1)th RV in the RV sequence, where s is an integer greater than or equal to 0.

Among them, for the network device, the value of s may be determined by the network device, or agreed upon by the terminal and the network device, or specified by the protocol. For the terminal, the value of s may be configured by the network device to the terminal through RRC signaling, MAC CE signaling, or DCI, or agreed upon by the terminal and the network device, or specified by the protocol.

If the first transmission opportunity is one of the transmission opportunities with the largest number of symbols among the K transmission opportunities, the s+1th or (mod(s, 4)+1)th in the RV sequence When RV is RV0, mode two can ensure that one of the transmission opportunities with the most symbol data corresponds to RV0, thereby improving the decoding performance of the receiving end. Moreover, when there are multiple transmission opportunities with the largest number of symbols, at least two of the multiple transmission opportunities with the largest number of symbols correspond to different RVs. In this case, the decoding capability of the receiving end can be improved.

In the second method, for example, it is assumed that the preset condition is: the number of symbols is the largest, the RV sequence is: {RVa, RVb, RVc, RVd}, s=1. If the positions of the five transmission opportunities in the time domain and the symbols occupied are (a) in Figure 7, the first transmission opportunity, the second transmission opportunity, and the fifth transmission opportunity of the five transmission opportunities correspond to RV are RVb, RVc and RVd. If the position of the 5 transmission opportunities in the time domain and the symbols occupied are (b) in Figure 7, the first transmission opportunity, the fourth transmission opportunity, and the fifth transmission opportunity of the 5 transmission opportunities correspond to RV are RVb, RVc and RVd. If the position of the five transmission opportunities in the time domain and the symbols occupied are (c) in Figure 7, the third, fourth, and fifth transmission opportunities of the five transmission opportunities correspond to RV are RVb, RVc and RVd. If the position of the five transmission opportunities in the time domain and the symbols occupied are (d) in Figure 7, the first transmission opportunity, the second transmission opportunity, and the third transmission opportunity of the five transmission opportunities correspond to RV are RVb, RVc and RVd.

In the second method, for example, it is assumed that the preset condition is: the number of symbols is the largest, the RV sequence is: {RVa, RVb, RVc, RVd}, s=2. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (a) in Figure 8, the RV corresponding to the second transmission opportunity among the three transmission opportunities is RVc. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (b) in Figure 8, the RV corresponding to the second transmission opportunity among the three transmission opportunities is RVc. If the positions of the three transmission opportunities in the time domain and the symbols occupied are (c) in FIG. 8, the RV corresponding to the second transmission opportunity among the three transmission opportunities is RVc.

It should be noted that, in the foregoing embodiment, the RV corresponding to the first transmission opportunity is determined according to the RV sequence and n. In actual implementation, the transmission opportunities that meet the preset conditions may all correspond to the same RV (for example, RV0 or RV3). If the first transmission opportunity is one of the transmission opportunities with the largest number of symbols among the K transmission opportunities, and the RV is RV0, this method can make one of the transmission opportunities with the most symbol data correspond to RV0 , Thereby improving the decoding performance of the receiving end.

Among them, for the network device, the RV may be determined by the network device, or agreed upon by the terminal and the network device, or specified by the protocol. For the terminal, the RV may be configured by the network device to the terminal through RRC signaling, MAC CE signaling, or DCI, or agreed upon by the terminal and the network device, or specified by the protocol.

Optionally, after determining the RV corresponding to the transmission opportunity meeting the preset condition among the K transmission opportunities, the RV corresponding to the transmission opportunity that does not meet the preset condition among the K transmission opportunities is also determined. At this time, the method may also include:

(21) Determine the RV corresponding to the second transmission opportunity according to the RV sequence and m, where the second transmission opportunity is the mth transmission opportunity among the transmission opportunities in which the number of symbols in the K transmission opportunities does not meet the preset condition.

The RV corresponding to the second transmission opportunity can be determined in the following way 1 or way 2.

Mode 1: The RV corresponding to the second transmission opportunity is: the (mod(m+M ₀ -1, 4)+1)th RV in the RV sequence, where M ₀ is an integer greater than or equal to 0.

Among them, the value of M ₀ can have the following situations:

Case 1. M ₀ is 0.

In case 1, exemplarily, based on the example shown in FIG. 5, in (a) in FIG. 5, the RVs corresponding to the third transmission timing and the fourth transmission timing among the five transmission timings are RVa, respectively And RVb. In (b) of FIG. 5, the RVs corresponding to the second transmission timing and the third transmission timing among the five transmission timings are RVa and RVb, respectively. In (c) in FIG. 5, the RVs corresponding to the first transmission timing and the second transmission timing among the five transmission timings are RVa and RVb, respectively. In (d) of FIG. 5, the RVs corresponding to the fourth transmission timing and the fifth transmission timing among the five transmission timings are RVa and RVb, respectively.

Case 2. M ₀ is an integer value configured by the network device.

For example, M ₀ can be 0, _1, 2, 3, 4, etc.

In case 2, for example, assuming M ₀ =1, based on the example shown in FIG. 7, in (a) in FIG. 7, the third transmission timing and the fourth transmission timing among the 5 transmission timings The corresponding RVs are RVb and RVc. In (b) in FIG. 7, the RVs corresponding to the second transmission timing and the third transmission timing among the five transmission timings are RVb and RVc, respectively. In (c) in FIG. 7, the RVs corresponding to the first transmission timing and the second transmission timing among the five transmission timings are RVb and RVc, respectively. In (d) in FIG. 7, the RVs corresponding to the fourth transmission timing and the fifth transmission timing among the five transmission timings are RVb and RVc, respectively.

Case 3. M ₀ is the number of transmission opportunities where the number of symbols meets the preset condition among the K transmission opportunities.

In case 3, exemplarily, based on the example shown in FIG. 6, in (a), (b), and (c) in FIG. 6, M ₀ =1, the first transmission among the three transmission opportunities The RVs corresponding to the timing and the third transmission timing are RVb and RVc, respectively.

Method two,

The RV corresponding to the second transmission opportunity is: the (mod(m+r-1,4)+1)th RV in the RV sequence.

In the second method, the second transmission opportunity is the m-th transmission opportunity after the M transmission opportunities are arranged in ascending order of the number of symbols. r is the order of the RV in the RV sequence corresponding to the last transmission opportunity among the transmission opportunities meeting the preset condition in the RV sequence. For example, if the RV sequence is {0, 2, 3, 1}, the last transmission opportunity in the transmission opportunity meeting the preset condition corresponds to RV3, and RV3 is the third RV in the RV sequence, then r=3 .

In the second mode, based on the example shown in FIG. 8, in (a) of FIG. 8, the RVs corresponding to the third transmission timing and the first transmission timing among the three transmission timings are RVd and RVa, respectively. In (b) of FIG. 8, the RVs corresponding to the first transmission timing and the third transmission timing among the three transmission timings are RVd and RVa, respectively. In (c) in FIG. 8, the RVs corresponding to the third transmission timing and the first transmission timing among the three transmission timings are RVd and RVa, respectively.

In addition, similar to step 402, it is also possible to determine one or more transmission opportunities in which the number of symbols meets another preset condition in the transmission opportunities that do not meet a preset condition, and determine the one or more transmission opportunities in the one or more transmission occasions according to the RV sequence. RV corresponding to the transmission timing. When the method is specifically implemented, it is similar to the specific implementation of step 402, and will not be repeated. The network equipment and the terminal can use this processing method for the transmission timings of the remaining undetermined corresponding RVs each time, and the preset conditions may be different each time, until all the RVs corresponding to the K transmission timings are determined.

In the foregoing embodiment, the determination of the RV corresponding to the transmission timing that does not meet the preset condition among the K transmission timings is performed after determining the RV corresponding to all the transmission timings that satisfy the preset condition among the K transmission timings. . It is understandable that there is no order in determining the RV corresponding to these two types of transmission opportunities. For example, the RV corresponding to each of the K transmission opportunities can be determined one by one according to the sequence of the K transmission opportunities in the time domain. In one example, starting from the first transmission opportunity among the K time domain opportunities, it is determined whether each transmission opportunity meets any one or more of the preset conditions in the foregoing embodiments, and then the foregoing implementation is adopted according to the determination result. The method of determining RV mentioned in the example determines the RV corresponding to the transmission timing.

The following uses an example of a terminal to illustrate the method for determining the RV corresponding to the transmission timing provided in the foregoing embodiment. In this example, a time slot contains 14 symbols, the first 3 symbols of the network device are configured as downlink symbols (indicated by D), the fourth symbol is configured as flexible symbols (indicated by F), and the remaining symbols are uplink symbols (indicated by U). Said). Referring to Fig. 9, the terminal determines K=4 transmission opportunities on 2 consecutive time slots. Among them, the first and third transmission opportunities are respectively located on the 3 uplink symbols of symbol #4 to symbol #6 of time slot #n and time slot #(n+1), and the second and fourth transmission opportunities are located respectively There are a total of 7 uplink symbols from symbol #7 to symbol #13 of slot #n and slot #(n+1). The RV sequence determined by the terminal is {0,2,3,1}. Referring to Figure 10, the above method may include:

1001. The terminal determines the transmission opportunity with the largest number of symbols among K=4 transmission opportunities, that is, the second and fourth transmission opportunities.

1002. The terminal determines that the RV sequence is {0, 2, 3, 1}.

1003. The terminal determines that the first transmission opportunity of the two transmission opportunities with the largest number of symbols (that is, the second transmission opportunity in the K transmission opportunities) corresponds to the RV of the RV sequence (mod(1-1,4)) +1) = 1 value, namely RV0; determine that the second transmission opportunity of the two transmission opportunities with the largest number of symbols (that is, the fourth transmission opportunity in the K transmission opportunities) corresponds to the RV corresponding to the ( mod(2-1,4)+1)=2 values, namely RV2, as shown in (a) or (b) in FIG. 9.

After determining the RVs corresponding to the second and fourth transmission opportunities in the K transmission opportunities, the terminal also determines the RVs corresponding to the first and third transmission opportunities in the K transmission opportunities. Specifically, the following steps 1004a to 1006a (denoted as implementation 1) or 1004b to 1006b (denoted as implementation 2) are implemented.

Implementation method 1 includes:

1004a. The terminal determines the remaining transmission opportunities or the number of symbols less than 7 in K=4 transmission opportunities (that is, transmission opportunities other than the transmission opportunity with the largest number of symbols), that is, the first and third transmission opportunities.

1005a. The terminal determines that the RV sequence is {0, 2, 3, 1}.

1006a. The terminal determines that the first transmission opportunity of the remaining 2 transmission opportunities (that is, the first transmission opportunity in K transmission opportunities) corresponds to the RV of the (mod(1-1,4)+1) in the RV sequence. ) = 1 value, namely RV0; determine that the second transmission opportunity in the remaining 2 transmission opportunities (that is, the third transmission opportunity in the K transmission opportunities) corresponds to the RV corresponding to the (mod(2- 1,4)+1)=2 values, namely RV2, as shown in (a) in FIG. 9.

Implementation 2 includes:

1004b. The terminal determines the remaining transmission opportunities or the number of symbols less than 7 in K=4 transmission opportunities, that is, the first and third transmission opportunities.

1005b. The terminal determines that the RV sequence is {0, 2, 3, 1}.

1006b. Assuming m=2, the terminal determines that the first transmission opportunity in the remaining 2 transmission opportunities (that is, the first transmission opportunity in the K transmission opportunities) corresponds to the RV of the (mod(1+m) -1,4)+1)=3 values, namely RV3; determine the RV associated with the second transmission opportunity in the remaining 2 transmission opportunities (that is, the third transmission opportunity in the K transmission opportunities) is the RV sequence The (mod(2+m-1,4)+1)=4th value in RV1. Figure 9 (b).

In step 1006b, the value of m is set to 2. The reason is that among the four transmission opportunities, there are two transmission opportunities that contain the largest number of symbols. The first two values in the RV sequence are used, and the RV sequence contains the third The remaining values including these values are not used. Therefore, other transmission opportunities prefer to use these values.

In Figure 9, for uplink unauthorized transmission, K=4 transmission opportunities can be in the same unauthorized transmission period, or in different unauthorized transmission periods.

In the foregoing embodiments of the present application, the RV sequence includes 4 RVs as an example to illustrate the method provided in the present application. In actual implementation, the number of RVs included in the RV sequence may be other values (for example, 2, 6, etc.), which is not specifically limited in the embodiment of the present application.

The foregoing mainly introduces the solution of the embodiment of the present application from the perspective of interaction between various network elements. It can be understood that, in order to realize the aforementioned functions, each network element, for example, a network device and a terminal, includes at least one of a hardware structure and a software module corresponding to each function. Those skilled in the art should easily realize that in combination with the units and algorithm steps of the examples described in the embodiments disclosed herein, the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed by hardware or computer software-driven hardware depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

The embodiment of the present application may divide the network device and the terminal into functional units according to the foregoing method examples. For example, each functional unit may be divided corresponding to each function, or two or more functions may be integrated into one processing unit. The above-mentioned integrated unit can be implemented in the form of hardware or software functional unit. It should be noted that the division of units in the embodiments of the present application is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

In the case of using an integrated unit, FIG. 11 shows a schematic diagram of a possible structure of the communication device (denoted as the communication device 110) involved in the foregoing embodiment, and the communication device 110 includes a processing unit 1101. Optionally, the communication device 110 further includes at least one of a communication unit 1102 and a storage unit 1103. The schematic structural diagram shown in FIG. 11 may be used to illustrate the structure of the network device and the terminal involved in the foregoing embodiment.

When the schematic structural diagram shown in FIG. 11 is used to illustrate the structure of the terminal involved in the foregoing embodiment, the processing unit 1101 is used to control and manage the actions of the terminal. For example, the processing unit 1101 is used to support the terminal to execute the terminal shown in FIG. 4 401 to 403, all steps in FIG. 10, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processing unit 1101 may communicate with other network entities through the communication unit 1102, for example, communicate with the network device (for example, use the RV corresponding to the first transmission opportunity to send the PUSCH to the network device). The storage unit 1103 is used to store program codes and data of the terminal.

When the schematic structural diagram shown in FIG. 11 is used to illustrate the structure of the terminal involved in the foregoing embodiment, the communication device 110 may be a terminal or a chip in the terminal.

When the structural diagram shown in FIG. 11 is used to illustrate the structure of the network device involved in the foregoing embodiment, the processing unit 1101 is used to control and manage the actions of the network device. For example, the processing unit 1101 is used to support the network device to execute the diagram. Steps 401 to 403 in 4, and/or actions performed by network devices in other processes described in the embodiments of this application. The processing unit 1101 may communicate with other network entities through the communication unit 1102, for example, communicate with the terminal (for example, use the RV corresponding to the first transmission opportunity to send the PDSCH to the terminal). The storage unit 1103 is used to store the program code and data of the network device.

When the schematic structural diagram shown in FIG. 11 is used to illustrate the structure of the network device involved in the foregoing embodiment, the communication apparatus 110 may be a network device or a chip in the network device.

The processing unit 1101 may also be composed of a first processing unit and a second processing unit, where the first processing unit is used to perform step 401, and the second processing unit is used to perform step 402.

Wherein, when the communication device 110 is a terminal or a network device, the processing unit 1101 may be a processor or a controller, and the communication unit 1102 may be a communication interface, a transceiver, a transceiver, a transceiver circuit, a transceiver, etc. Among them, the communication interface is a general term and may include one or more interfaces. The storage unit 1103 may be a memory. When the communication device 110 is a chip in a terminal or a network device, the processing unit 1101 may be a processor or a controller, and the communication unit 1102 may be an input/output interface, a pin, or a circuit. The storage unit 1103 may be a storage unit (for example, a register, a cache, etc.) in the chip, or a storage unit (for example, a read-only memory, a random access memory, etc.) located outside the chip in a terminal or a network device.

Among them, the communication unit may also be referred to as a transceiver unit. The antenna and control circuit with the transceiver function in the communication device 110 may be regarded as the communication unit 1102 of the communication device 110, and the processor with processing function may be regarded as the processing unit 1101 of the communication device 110. Optionally, the device for implementing the receiving function in the communication unit 1102 may be regarded as a receiving unit, which is used to perform the receiving steps in the embodiment of the present application, and the receiving unit may be a receiver, a receiver, a receiving circuit, and the like. The device for implementing the sending function in the communication unit 1102 can be regarded as a sending unit, the sending unit is used to perform the sending steps in the embodiment of the present application, and the sending unit can be a transmitter, a transmitter, a sending circuit, and the like.

If the integrated unit in FIG. 11 is implemented in the form of a software function module and sold or used as an independent product, it can be stored in a computer readable storage medium. Based on this understanding, the technical solutions of the embodiments of the present application essentially or the part that contributes to the prior art or all or part of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage The medium includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to execute all or part of the steps of the methods described in the various embodiments of the present application. Storage media for storing computer software products include: U disk, mobile hard disk, read-only memory (read-only memory, referred to as ROM), random access memory (random access memory, referred to as RAM), magnetic disks or optical disks, etc. The medium of the program code.

The unit in FIG. 11 may also be called a module, for example, the processing unit may be called a processing module.

The embodiment of the present application also provides a schematic diagram of the hardware structure of a communication device (denoted as the communication device 120). Referring to FIG. 12 or FIG. 13, the communication device 120 includes a processor 1201, and optionally, a communication device connected to the processor 1201.的Memory 1202.

The processor 1201 may be a general-purpose central processing unit (central processing unit, CPU for short), microprocessor, application-specific integrated circuit (ASIC for short), or one or more programs used to control the program of this application Implementation of integrated circuits. The processor 1201 may also include multiple CPUs, and the processor 1201 may be a single-CPU (single-CPU) processor or a multi-core (multi-CPU) processor. The processor here may refer to one or more devices, circuits, or processing cores for processing data (for example, computer program instructions).

The memory 1202 may be ROM or other types of static storage devices that can store static information and instructions, RAM, or other types of dynamic storage devices that can store information and instructions, or may be an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory). read-only memory, EEPROM for short), compact disc read-only memory (CD-ROM for short) or other optical disc storage, optical disc storage (including compact discs, laser discs, optical discs, digital universal discs, Blu-ray discs, etc.) , A magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store desired program codes in the form of instructions or data structures and that can be accessed by a computer. The embodiments of this application do not impose any limitation on this. The memory 1202 may exist independently, or may be integrated with the processor 1201. Wherein, the memory 1202 may contain computer program code. The processor 1201 is configured to execute the computer program code stored in the memory 1202, so as to implement the method provided in the embodiment of the present application.

In the first possible implementation manner, referring to FIG. 12, the communication device 120 further includes a transceiver 1203. The processor 1201, the memory 1202, and the transceiver 1203 are connected by a bus. The transceiver 1203 is used to communicate with other devices or communication networks. Optionally, the transceiver 1203 may include a transmitter and a receiver. The device used for implementing the receiving function in the transceiver 1203 can be regarded as a receiver, and the receiver is used to perform the receiving steps in the embodiment of the present application. The device in the transceiver 1203 for implementing the sending function can be regarded as a transmitter, and the transmitter is used to perform the sending steps in the embodiment of the present application.

Based on the first possible implementation manner, the schematic structural diagram shown in FIG. 12 may be used to illustrate the structure of the network device or terminal involved in the foregoing embodiment.

When the schematic structural diagram shown in FIG. 12 is used to illustrate the structure of the terminal involved in the foregoing embodiment, the processor 1201 is used to control and manage the actions of the terminal. For example, the processor 1201 is used to support the terminal to execute the terminal in FIG. 4 401 to 403, all steps in FIG. 10, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processor 1201 may communicate with other network entities through the transceiver 1203, for example, communicate with the network device (for example, use the RV corresponding to the first transmission opportunity to send the PUSCH to the network device). The memory 1202 is used to store program codes and data of the terminal.

When the schematic structural diagram shown in FIG. 12 is used to illustrate the structure of the network device involved in the foregoing embodiment, the processor 1201 is used to control and manage the actions of the network device. For example, the processor 1201 is used to support the network device to execute the diagram. Steps 401 to 403 in 4, and/or actions performed by network devices in other processes described in the embodiments of this application. The processor 1201 may communicate with other network entities through the transceiver 1203, for example, communicate with the terminal (for example, use the RV corresponding to the first transmission opportunity to send the PDSCH to the terminal). The memory 1202 is used to store program codes and data of the network device.

In a second possible implementation manner, the processor 1201 includes a logic circuit and at least one of an input interface and an output interface. Among them, the output interface is used to execute the sending action in the corresponding method, and the input interface is used to execute the receiving action in the corresponding method.

Based on the second possible implementation manner, refer to FIG. 13. The schematic structural diagram shown in FIG. 13 may be used to illustrate the structure of the network device or terminal involved in the foregoing embodiment.

When the schematic structural diagram shown in FIG. 13 is used to illustrate the structure of the terminal involved in the foregoing embodiment, the processor 1201 is used to control and manage the actions of the terminal. For example, the processor 1201 is used to support the terminal to execute the terminal in FIG. 4 401 to 403, all steps in FIG. 10, and/or actions performed by the terminal in other processes described in the embodiments of the present application. The processor 1201 may communicate with other network entities through at least one of the input interface and the output interface, for example, communicate with the network device (for example, use the RV corresponding to the first transmission opportunity to send the PUSCH to the network device). The memory 1202 is used to store program codes and data of the terminal.

When the schematic structural diagram shown in FIG. 13 is used to illustrate the structure of the network device involved in the foregoing embodiment, the processor 1201 is used to control and manage the actions of the network device. For example, the processor 1201 is used to support the network device to execute the diagram. Steps 401 to 403 in 4, and/or actions performed by network devices in other processes described in the embodiments of this application. The processor 1201 may communicate with other network entities through at least one of the input interface and the output interface, for example, communicate with the terminal (for example, use the RV corresponding to the first transmission opportunity to send the PDSCH to the terminal). The memory 1202 is used to store program codes and data of the network device.

In addition, the embodiment of the present application also provides a schematic diagram of the hardware structure of a terminal (denoted as terminal 140) and a network device (denoted as network device 150). For details, refer to FIG. 14 and FIG. 15 respectively.

FIG. 14 is a schematic diagram of the hardware structure of the terminal 140. For ease of description, FIG. 14 only shows the main components of the terminal. As shown in FIG. 14, the terminal 140 includes a processor, a memory, a control circuit, an antenna, and an input and output device.

The processor is mainly used to process the communication protocol and communication data, and to control the entire terminal, execute the software program, and process the data of the software program. For example, it is used to control the terminal to execute 401 to 403 in FIG. 4 and the data in FIG. 10 All steps, and/or actions performed by the terminal in other processes described in the embodiments of this application. The memory is mainly used to store software programs and data. The control circuit (also called a radio frequency circuit) is mainly used for conversion of baseband signals and radio frequency signals and processing of radio frequency signals. The control circuit and the antenna together can also be called a transceiver, which is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input and output devices, such as touch screens, display screens, and keyboards, are mainly used to receive data input by users and output data to users.

When the terminal is turned on, the processor can read the software program in the memory, interpret and execute the instructions of the software program, and process the data of the software program. When data needs to be sent through the antenna, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the control circuit in the control circuit. The control circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal through the antenna in the form of electromagnetic waves. send. When data is sent to the terminal, the control circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data.

Those skilled in the art can understand that, for ease of description, FIG. 14 only shows a memory and a processor. In an actual terminal, there may be multiple processors and memories. The memory may also be referred to as a storage medium or a storage device, etc., which is not limited in the embodiment of the present application.

As an optional implementation, the processor may include a baseband processor and a central processing unit. The baseband processor is mainly used to process communication protocols and communication data. The central processing unit is mainly used to control the entire terminal and execute software. Programs, which process the data of software programs. The processor in FIG. 14 integrates the functions of the baseband processor and the central processing unit. Those skilled in the art can understand that the baseband processor and the central processing unit may also be independent processors and are interconnected by technologies such as buses. Those skilled in the art can understand that the terminal may include multiple baseband processors to adapt to different network standards, the terminal may include multiple central processors to enhance its processing capabilities, and various components of the terminal may be connected through various buses. The baseband processor can also be expressed as a baseband processing circuit or a baseband processing chip. The central processing unit can also be expressed as a central processing circuit or a central processing chip. The function of processing the communication protocol and communication data can be built in the processor, or can be stored in the memory in the form of a software program, and the processor executes the software program to realize the baseband processing function.

FIG. 15 is a schematic diagram of the hardware structure of the network device 150. The network device 150 may include one or more radio frequency units, such as a remote radio unit (RRU for short) 1501 and one or more baseband units (BBU for short) (also referred to as digital units). , Referred to as DU)) 1502.

The RRU 1501 may be called a transceiver unit, a transceiver, a transceiver circuit, or a transceiver, etc., and it may include at least one antenna 1511 and a radio frequency unit 1512. The RRU1501 part is mainly used for the transceiver of radio frequency signals and the conversion of radio frequency signals and baseband signals. The RRU 1501 and the BBU 1502 may be physically arranged together or separately, for example, a distributed base station.

The BBU 1502 is the control center of the network equipment, and can also be called the processing unit, which is mainly used to complete the baseband processing functions, such as channel coding, multiplexing, modulation, spread spectrum and so on.

In one embodiment, the BBU 1502 can be composed of one or more single boards, and multiple single boards can jointly support a single access indication radio access network (such as an LTE network), or can support wireless access networks of different access standards. Access network (such as LTE network, 5G network or other networks). The BBU 1502 also includes a memory 1521 and a processor 1522, and the memory 1521 is used to store necessary instructions and data. The processor 1522 is used to control the network device to perform necessary actions. The memory 1521 and the processor 1522 may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.

It should be understood that the network device 150 shown in FIG. 15 can execute actions 401 to 403 in FIG. 4 and/or the actions performed by the network device in other processes described in the embodiments of the present application. The operations, functions, or operations and functions of each module in the network device 150 are respectively set to implement the corresponding processes in the foregoing method embodiments. For details, please refer to the descriptions in the above method embodiments. To avoid repetition, detailed descriptions are appropriately omitted here.

In the implementation process, each step in the method provided in this embodiment can be completed by an integrated logic circuit of hardware in the processor or instructions in the form of software. The steps of the method disclosed in the embodiments of the present application may be directly embodied as being executed and completed by a hardware processor, or executed and completed by a combination of hardware and software modules in the processor. For other descriptions about the processor in FIG. 14 and FIG. 15, refer to the description about the processor in FIG. 12 and FIG. 13, and details are not repeated here.

The embodiments of the present application also provide a computer-readable storage medium, including instructions, which when run on a computer, cause the computer to execute any of the foregoing methods.

The embodiments of the present application also provide a computer program product containing instructions, which when run on a computer, cause the computer to execute any of the above methods.

An embodiment of the present application also provides a communication system, including: the above-mentioned network device and terminal.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using a software program, it may be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in the embodiments of the present application are generated in whole or in part. The computer can be a general-purpose computer, a dedicated computer, a computer network, or other programmable devices. Computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, computer instructions may be transmitted from a website, computer, server, or data center through a cable (such as Coaxial cable, optical fiber, digital subscriber line (digital subscriber line, referred to as DSL)) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be accessed by a computer or may include one or more data storage devices such as a server or a data center that can be integrated with the medium. The usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk (SSD)).

Although the present application is described in conjunction with various embodiments, in the process of implementing the claimed application, those skilled in the art can understand and realize the disclosure by looking at the drawings, the disclosure, and the appended claims. Other changes to the embodiment. In the claims, the word "comprising" does not exclude other components or steps, and "a" or "one" does not exclude multiple. A single processor or other unit may implement several functions listed in the claims. Certain measures are described in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

Although the application has been described in combination with specific features and embodiments, it is obvious that various modifications and combinations can be made without departing from the spirit and scope of the application. Accordingly, this specification and drawings are merely exemplary descriptions of the application defined by the appended claims, and are deemed to have covered any and all modifications, changes, combinations or equivalents within the scope of the application. Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application also intends to include these modifications and variations.

Claims

A method for determining transmission resources, characterized in that it comprises:

Acquiring the RV sequence used to determine the redundancy version RV corresponding to K transmission occasions, where the K transmission occasions are used for repeated transmission of data, and K is an integer greater than 1;

According to the RV sequence and n, determine the RV corresponding to the first transmission opportunity, where the first transmission opportunity is the nth transmission opportunity among the transmission opportunities where the number of symbols in the K transmission opportunities meets a preset condition, n is an integer greater than 0 and less than or equal to K.
The method according to claim 1, wherein the RV corresponding to the first transmission opportunity is the (mod(n-1,4)+1)th RV in the RV sequence, and mod is the remainder function .
The method according to claim 1 or 2, wherein the preset condition is: the number of symbols is the largest, or the number of symbols is greater than or equal to a first threshold, or the number of symbols is within a preset or configured range of the number of symbols , Or, the number of symbols is less than or equal to the second threshold.
The method according to any one of claims 1-3, wherein the method further comprises:

According to the RV sequence and m, determine the RV corresponding to the second transmission opportunity, where the second transmission opportunity is the mth transmission opportunity among the transmission opportunities where the number of symbols in the K transmission opportunities does not meet the preset condition A transmission opportunity, m is an integer greater than 0 and less than or equal to K.
The method according to claim 4, wherein the RV corresponding to the second transmission opportunity is the (mod(m+M 0 -1, 4)+1)th RV in the RV sequence, M 0 Is an integer greater than or equal to 0.
The method according to claim 5, wherein the M 0 is 0, or the M 0 is a configured integer value, or the M 0 is the number of symbols in the K transmission occasions that meets a predetermined Set the number of transmission opportunities for the condition.
A device for determining transmission resources, characterized in that it comprises: a first processing unit and a second processing unit;

The first processing unit is configured to obtain the RV sequence used to determine the redundancy version RV corresponding to K transmission occasions, the K transmission occasions are used to repeatedly transmit data, and K is an integer greater than 1;

The second processing unit is configured to determine the RV corresponding to the first transmission opportunity according to the RV sequence and n, where the first transmission opportunity is the transmission in which the number of symbols in the K transmission opportunities meets a preset condition For the nth transmission opportunity in the timing, n is an integer greater than 0 and less than or equal to K.
8. The apparatus according to claim 7, wherein the RV corresponding to the first transmission opportunity is the (mod(n-1,4)+1)th RV in the RV sequence, and mod is a remainder function .
The device according to claim 7 or 8, wherein the preset condition is: the number of symbols is the largest, or the number of symbols is greater than or equal to a first threshold, or the number of symbols is within a preset or configured range of the number of symbols , Or, the number of symbols is less than or equal to the second threshold.
The device according to any one of claims 7-9, wherein:

The second processing unit is further configured to determine an RV corresponding to a second transmission opportunity according to the RV sequence and m, where the second transmission opportunity is that the number of symbols in the K transmission opportunities does not satisfy the For the m-th transmission opportunity in the transmission timing of the preset condition, m is an integer greater than 0 and less than or equal to K.
The apparatus according to claim 10, wherein the RV corresponding to the second transmission opportunity is the (mod(m+M 0 -1, 4)+1)th RV in the RV sequence, M 0 Is an integer greater than or equal to 0.
The apparatus according to claim 11, wherein the M 0 is 0, or the M 0 is a configured integer value, or the M 0 is the number of symbols in the K transmission occasions meeting a predetermined Set the number of transmission opportunities for the condition.
A device for determining transmission resources, characterized in that it comprises: a processor;

The processor is connected to a memory, and the memory is used to store computer-executable instructions, and the processor executes the computer-executable instructions stored in the memory, so that the device realizes the device as described in any one of claims 1-6. The method described.
A computer-readable storage medium, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1-6.
A computer program product, characterized by comprising instructions, which when run on a computer, causes the computer to execute the method according to any one of claims 1-6.