WO2021207982A1 - 一种数据传输方法、终端设备、网络设备 - Google Patents
一种数据传输方法、终端设备、网络设备 Download PDFInfo
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Definitions
- the present invention relates to the field of communications, and in particular to a data transmission method, terminal equipment, network equipment, chips, computer-readable storage media, computer program products, and computer programs.
- the network uses system information to configure the terminal device with the maximum transport block (TB) size that the current network allows to transmit.
- the terminal device determines the amount of data to be transmitted. If it is less than the maximum TB size, Then, you can initiate early data transmission (EDT, Early Data Transmission) transmission; on the contrary, the terminal device uses the normal connection establishment process to enter the connected state to transmit data.
- EDT Early Data Transmission
- embodiments of the present invention provide a data transmission method, terminal equipment, network equipment, chip, computer-readable storage medium, computer program product, and computer program.
- a data transmission method including:
- the data to be transmitted is sent to the network device on the first resource; wherein, the first resource is one of a plurality of available resources.
- a data transmission method including:
- the network device receives the data to be transmitted on the first resource; wherein the first resource is one of a plurality of available resources.
- a terminal device including:
- the first communication unit in an inactive state, sends the data to be transmitted to the network device on the first resource; wherein the first resource is one of a plurality of available resources.
- a network device including:
- the second communication unit receives the data to be transmitted on the first resource; wherein the first resource is one of a plurality of available resources.
- a terminal device including: a processor and a memory for storing a computer program that can run on the processor,
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory to execute the steps of the above method.
- a network device including: a processor and a memory for storing a computer program that can run on the processor,
- the memory is used to store a computer program
- the processor is used to call and run the computer program stored in the memory to execute the steps of the above method.
- a chip including a processor, configured to call and run a computer program from a memory, so that a device installed with the chip executes the method described above.
- a computer-readable storage medium is provided, and the computer-readable storage medium is used to store a computer program that enables a computer to execute the steps of the method described above.
- a computer program product including computer program instructions that cause a computer to execute the method described above.
- a computer program which causes a computer to execute the method described above.
- the first resource is selected from the available resources to transmit the data to be transmitted.
- the above solution provides processing of selecting the uplink transmission resource that best meets the current needs from the available resources.
- Figure 1-1 is a schematic diagram 1 of a communication system architecture provided by an embodiment of the present application.
- FIG 1-2 is a schematic diagram of EDT processing in related technologies
- Figure 1-3 is a schematic diagram of the four-step random access processing flow
- Figure 1-4 is a schematic diagram of the 2-step random access processing flow
- FIG. 2 is a first schematic flowchart of a data transmission method provided by an embodiment of the present application
- FIG. 3 is a schematic diagram of the second flow of a data transmission method provided by an embodiment of the present application.
- FIG. 4 is a third schematic flowchart of a data transmission method provided by an embodiment of the present application.
- FIG. 5 is a schematic diagram 1 of a processing scenario provided by an embodiment of the present application.
- FIG. 6 is a fourth flowchart of a data transmission method provided by an embodiment of the present application.
- FIG. 7 is a second schematic diagram of a processing scenario provided by an embodiment of the present application.
- FIG. 8 is a fifth schematic flowchart of a data transmission method provided by an embodiment of the present application.
- FIG. 9 is a schematic diagram of the structure of a terminal device provided by an embodiment of the present application.
- FIG. 10 is a schematic diagram of the composition structure of a network device provided by an embodiment of the present application.
- FIG. 11 is a schematic diagram of the composition structure of a communication device provided by an embodiment of the present invention.
- FIG. 12 is a schematic block diagram of a chip provided by an embodiment of the present application.
- FIG. 13 is a second schematic diagram of a communication system architecture provided by an embodiment of the present application.
- GSM Global System of Mobile Communication
- CDMA Code Division Multiple Access
- WCDMA Wideband Code Division Multiple Access
- GSM Global System of Mobile Communication
- GPRS General Packet Radio Service
- LTE Long Term Evolution
- FDD Frequency Division Duplex
- TDD Time Division Duplex
- UMTS Universal Mobile Telecommunication System
- WiMAX Worldwide Interoperability for Microwave Access
- the communication system 100 applied in the embodiment of the present application may be as shown in FIG. 1-1.
- the communication system 100 may include a network device 110, and the network device 110 may be a device that communicates with a UE 120 (or referred to as a communication terminal device or a terminal device).
- the network device 110 may provide communication coverage for a specific geographic area, and may communicate with UEs located in the coverage area.
- the network equipment 110 may be a network equipment (Base Transceiver Station, BTS) in a GSM system or a CDMA system, a network equipment (NodeB, NB) in a WCDMA system, or an evolution in an LTE system Type network equipment (Evolutional Node B, eNB or eNodeB), or a wireless controller in the Cloud Radio Access Network (CRAN), or the network equipment may be a mobile switching center, a relay station, an access point, In-vehicle devices, wearable devices, hubs, switches, bridges, routers, network-side devices in 5G networks, or network devices in the future evolution of the Public Land Mobile Network (PLMN), etc.
- BTS Base Transceiver Station
- NodeB NodeB
- NB network equipment
- Evolutional Node B eNodeB
- eNodeB LTE system Type network equipment
- CRAN Cloud Radio Access Network
- the network equipment may be a mobile switching center, a relay station, an access point, In-
- the communication system 100 further includes at least one UE 120 located within the coverage area of the network device 110.
- UE as used herein includes but is not limited to connection via wired lines, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, and direct cable connection; And/or another data connection/network; and/or via a wireless interface, such as for cellular networks, wireless local area networks (WLAN), digital TV networks such as DVB-H networks, satellite networks, AM-FM Broadcast transmitter; and/or another UE's device configured to receive/send communication signals; and/or Internet of Things (IoT) equipment.
- a UE set to communicate through a wireless interface may be referred to as a "wireless communication terminal device", a “wireless terminal device” or a "mobile terminal device”.
- 5G enhanced mobile ultra-broadband
- URLLC low-latency and high-reliability communication
- mMTC large-scale machine-type communication
- eMBB still aims for users to obtain multimedia content, services and data, and its demand is growing very rapidly.
- eMBB may be deployed in different scenarios, such as indoors, urban areas, rural areas, etc., its capabilities and requirements are also quite different, so it cannot be generalized and must be analyzed in detail in conjunction with specific deployment scenarios.
- Typical applications of URLLC include: industrial automation, power automation, telemedicine operations (surgery), traffic safety protection, etc.
- Typical features of mMTC include: high connection density, small data volume, delay-insensitive services, low-cost modules and long service life.
- NR In the early deployment of NR, complete NR coverage is difficult to obtain, so the typical network coverage is wide-area LTE coverage and NR island coverage mode. Moreover, a large amount of LTE is deployed below 6GHz, and there is very little spectrum below 6GHz that can be used for 5G. Therefore, NR must study the spectrum application above 6GHz, and the high frequency band has limited coverage and fast signal fading. At the same time, in order to protect mobile operators' early investment in LTE, a tight interworking working mode between LTE and NR is proposed. NR can also work independently. In 5G, the maximum channel bandwidth can be 400MHZ (wideband carrier), which is very large compared to the maximum 20M bandwidth of LTE.
- EDT early data transmission
- the terminal device may always remain in the idle state or suspend state. Or inactive (inactive) state, completes the transmission of uplink and/or downlink small data packets.
- the flow of the user plane transmission scheme is shown in Figure 1-2, which may include: After the random access preamble and random access response are sent between the terminal equipment and the network equipment (eNB), Steps 1-4: The terminal equipment sends RRC connection recovery request, which can include recovery ID, recovery reason, short recovery (shortResume) MAC-I and uplink data.
- the network side performs UE context recovery processing, including network side eNB and context between MME and S-GW Processing of recovery request, bearer adjustment, and UE context recovery response.
- Step 5-6 Uplink data and downlink data transmission between eNB and S-GW;
- Step 7-8 S-GW sends adjustment bearer to MME, MME triggers eNB to perform SI suspension process, and finally eNB informs UE to perform RRC connection freed.
- the terminal device actually completes the transmission of small data packets without entering the connected state. This type of transmission is different from entering the connected state to transmit MBB services.
- the network will configure a maximum TB size allowed by the current network to be transmitted on SIB (System Information Block) 2.
- SIB System Information Block
- the terminal device judges the amount of data to be transmitted. If it is less than the broadcast maximum TB size, the terminal device can initiate EDT transmission; on the contrary, the terminal device uses the normal connection establishment process to enter the connected state to transmit data.
- the random access process is mainly triggered by the following events:
- the terminal selects PRACH resources (time-frequency resources and code domain resources), and sends the selected preamble on the selected PRACH time-frequency resources.
- the base station can estimate the uplink Timing based on the preamble, and what the terminal needs to transmit the third message Grant (authorized resource) size.
- the network device sends a random access response (RAR) to the terminal; after the terminal sends the first step message (msg1), it opens a RAR window and monitors the PDCCH in the window.
- RAR random access response
- the PDCCH is a PDCCH scrambled with RA-RNTI.
- the terminal performs scheduled transmission, that is, transmits an RRC (Radio Resource Control, Radio Resource Control) message on the scheduled resource.
- RRC Radio Resource Control, Radio Resource Control
- the message of Msg3 is mainly used to inform the network of what event triggered the RACH process. For example, if it is the initial access random process, the UE ID and establishment cause will be carried in msg3; if it is RRC reestablishment, it will carry the connected UE identification and establishment cause; at the same time, the ID carried by msg3 can make the competition conflict in the first place. Four parts were resolved.
- Msg4 has two functions, one is for contention conflict resolution; the second is to transmit RRC configuration messages to the terminal.
- Two-step random access can reduce signaling overhead.
- the basic method of 2-step random access is that msgA transmits msg1+msg3 of four-step RACH, and msgB transmits msg2+msg4 of four-step RACH.
- the embodiment of the present invention provides a data transmission method, as shown in FIG. 2, including:
- Step 21 When the terminal device is in an inactive state, the data to be transmitted is sent to the network device on the first resource; wherein, the first resource is one of a plurality of available resources.
- a data transmission method on the network device side includes:
- Step 31 The network device receives the data to be transmitted on the first resource; wherein, the first resource is one of a plurality of available resources.
- the data to be transmitted may be small data (Small Data) and/or connection request data.
- the network device may be a base station on the network side, such as an eNB, a gNB, and so on.
- the terminal device may also receive configuration information; that is, the network device may configure the terminal device, which may specifically include: receiving the first message of the network device, and the first message is used To indicate the plurality of available resources.
- the network device sends the first message for the terminal device.
- each available resource includes an uplink transmission resource.
- each available resource in the multiple available resources includes a Physical Uplink Shared Channel (PUSCH) resource.
- PUSCH Physical Uplink Shared Channel
- the first resource includes a first PUSCH resource.
- the size of the TB size of the first PUSCH resource is not less than the size of the data to be transmitted.
- the first PUSCH resource included in the first resource is a resource with a transmission block size (TB Size) greater than the size of the data to be transmitted.
- TB Size transmission block size
- the first message is a system message.
- MIB Master Information Block
- SIB System Information Block
- the sending the data to be transmitted to the network device on the first resource includes:
- a random access request is sent to the network device, where the random access request includes data to be transmitted.
- the network device receives the random access request sent by the terminal device on the first resource, where the random access request includes the data to be transmitted.
- the random access request includes a message A msg A;
- the first resource includes a first random access opportunity RO resource and the first PUSCH resource;
- the first RO resource is used to transmit the first preamble of the msg A, and the first PUSCH resource is used to transmit the data to be transmitted.
- MSGA is composed of a preamble and the data to be transmitted.
- the data to be transmitted may specifically include the aforementioned application layer data, that is, small data, and/or connection request information, such as a radio resource control (RRC, Radio Resource Control) recovery request (Resume Request).
- RRC Radio Resource Control
- the available resources contained in the first message are one or more, or may be N (N is greater than or equal to 1); and/or, the RO resources contained in the first message are one or more RO resources , Or it can be M RO resources (M is greater than or equal to 1). Among them, M and N can be the same or different.
- each available resource includes an RO resource and a PUSCH resource, and there is a first mapping relationship between the PUSCH resource and the RO resource; wherein, based on the first The mapping relationship determines the first RO resource corresponding to the first PUSCH resource.
- mapping relationship between the PUSCH resource and the preamble; wherein, the first preamble corresponding to the first PUSCH resource is determined based on the second mapping relationship.
- the first mapping relationship and the second mapping relationship may also be configured. Mapping relations.
- the first mapping relationship includes the corresponding relationship between N uplink transmission resources and M RO resources.
- N can be equal to M, that is, the uplink transmission resources can be one-to-one with the RO resources.
- N may not be equal to M, then the uplink transmission resource and the RO resource may have a one-to-many or many-to-one mapping relationship.
- N uplink transmission resources can correspond to L (L is an integer greater than or equal to 1) preambles; N can be equal to L, then there is a one-to-one correspondence between uplink transmission resources and preambles, and Or, N may not be equal to L, then there is a one-to-many or many-to-one correspondence between the uplink transmission resource and the preamble.
- the terminal device when it sends MSGA, it can determine the first RO resource corresponding to the first PUSCH according to the first mapping relationship, and/or can determine the first preamble corresponding to the first PUSCH according to the second mapping relationship; Furthermore, using the first preamble and/or the first RO resource, the first PUSCH is used to transmit the MSGA containing the data to be transmitted.
- the first message is a pre-configured authorization message.
- the pre-configuration authorization message is radio resource control RRC signaling.
- the first resource is the first PUSCH resource
- the first PUSCH resource is used to transmit the data to be transmitted.
- CG Configured Grant
- SPS Semi-Persistent Scheduling
- CG Configuration Authorization
- NR supports the following two types of uplink configuration authorized transmission:
- PUSCH Physical uplink shared channel
- Configured grant Type 1 Configured by the network radio resource control (RRC) including time domain resources, frequency domain resources, period of time domain resources, MCS, number of repetitions , Frequency hopping, all transmission resources and transmission parameters including the number of HARQ processes.
- RRC network radio resource control
- the terminal can immediately use the configured transmission parameters to perform PUSCH transmission on the configured time-frequency resources.
- PUSCH transmission based on the second type of configuration grant adopts a two-step resource configuration method: first, the network RRC configures the period of time domain resources, the number of repetitions, the frequency hopping, the number of HARQ processes, etc. Transmission resources and transmission parameters; then the second type of PUSCH transmission based on configuration authorization is activated by the PDCCH scrambled using CS-RNTI, and other transmission resources and transmission parameters including time domain resources, frequency domain resources, MCS, etc. are configured at the same time .
- the terminal device receives the RRC configuration parameters, it cannot immediately use the resources and parameters configured by the configuration parameters for PUSCH transmission, but must wait for the corresponding PDCCH to be activated and configure other resources and parameters before PUSCH transmission can be performed.
- This situation is mainly applicable to the scenario of physical uplink shared channel (PUSCH) transmission of the first type of configured grant (configured grant Type 1). That is to say, the first message is RRC signaling used for CG resource configuration, where the content that can be included can have multiple available resources; wherein, each available resource includes one uplink transmission resource, specifically, each available resource includes A physical uplink shared channel PUSCH resource.
- PUSCH physical uplink shared channel
- the method before sending the data to be transmitted to the network device on the first resource, the method further includes: the terminal device maintains an effective timing advance TA value, and the effective TA value is used for the terminal device to perform uplink Synchronize. That is, within a period of time, the moving distance of the terminal device is limited, and the TA value within this period of time can be set unchanged by default to achieve uplink synchronization.
- this embodiment describes how to determine the first resource in combination with the following multiple examples:
- the solution provided by this example can include:
- Step 41 The terminal device receives the first message; correspondingly, the network device sends the first message.
- the first message is a system message.
- the system message includes a master information block (MIB, Master Information Block) and/or a system information block (SIB, System Information Block).
- MIB Master Information Block
- SIB System Information Block
- a system broadcast message may be sent to a terminal device for a network device; wherein, the network device may be a network device (a base station, such as an eNB, or a gNB, etc.) of a serving cell of the terminal device.
- the network device may be a network device (a base station, such as an eNB, or a gNB, etc.) of a serving cell of the terminal device.
- a 2-step RACH resource is configured, specifically, an MSGA resource configured with a 2-step RACH resource; wherein, it may include RO and/or uplink transmission resources.
- the uplink transmission resources may be PUSCH resources.
- the uplink transmission resources may be N sets, where each set of PUSCH resources has a different TB size.
- mapping relationship of PUSCH resources can be:
- the first mapping relationship includes: M sets of RO resources and N sets of PUSCH resources, which can be mapped one-to-one or not one-to-one, which has been described in the foregoing embodiment and will not be repeated;
- the second mapping relationship includes a set of RO resources, the corresponding relationship between L preamble (group) and N sets of PUSCH resources; when L and N are the same, the preamble (group) can be When there is a one-to-one correspondence with PUSCH resources and L and N are different, the preamble and PUSCH may not correspond one-to-one.
- Step 42 When the terminal device is in an inactive state, determine the first resource from the multiple available resources.
- the determining the first resource from the plurality of available resources includes: among the plurality of available resources, the PUSCH resource has a TB size not less than the size of the data to be transmitted and meets a preset condition
- the available resource is determined to be the first resource.
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource.
- the terminal device When the terminal device is in an inactive state, it is determined whether the data volume of the data to be transmitted is not greater than the size of the largest TB in the available resources configured in the first message. According to the judgment result, there can be the following two treatments:
- the terminal device triggers a radio resource control RRC recovery process, and transmits the data to be transmitted after entering the connected state.
- RRC resume For example, if the data volume of the data to be transmitted is greater than the size of the maximum TB in the uplink transmission resource configured in the first message, an RRC resume (RRC resume) process is triggered.
- the terminal device does not carry data when transmitting the RRCResumeRequest (RRC recovery request).
- the terminal device can trigger the recovery process, enter the connected state after sending the RRC recovery request, and send the data to be transmitted.
- the RRC can be triggered In the recovery process, the data to be transmitted is transmitted after entering the connected state. How to trigger the terminal device to enter the connected state and the terminal device to send the data to be transmitted in the connected state will not be repeated here.
- the terminal device determines, among the multiple available resources, an available resource whose TB size of the PUSCH resource is not less than the size of the data to be transmitted and meets a preset condition as the first resource.
- the terminal device remains in an inactive state and selects the first resource from the available resources.
- the selection of the first resource among the plurality of available resources may be selected according to a preset condition, for example, it may include one of the following two methods:
- the first available resource whose TB size of the PUSCH resource is not less than the size of the data to be transmitted is determined as the first resource.
- the terminal device may select the first available resource whose TB size is not less than the amount of data to be transmitted as the first resource, and use the corresponding first RO/first preamble to transmit MsgA.
- the aforementioned first available resource may be an available resource whose location in the selected time domain is closest to the current time.
- the available resource with the smallest TB size of the PUSCH resource is determined as the first resource.
- the terminal device may select an uplink transmission resource of the smallest TB size that satisfies the data volume of the data to be transmitted from the available resources as the first resource (the first PUSCH resource).
- the corresponding first RO resource and/or first preamble may be determined according to the first mapping relationship and the second mapping relationship, and then may further include:
- Step 43 On the first resource, send a random access request to the network device, where the random access request includes data to be transmitted.
- the random access request includes a message A msg A
- the first resource includes a first random access occasion RO resource and the first PUSCH resource
- the first RO resource is used to transmit the first message of msg A.
- the first PUSCH resource is used to transmit the data to be transmitted.
- the terminal device uses the first RO resource and/or the first preamble, and the first resource to transmit the MSGA containing the data to be transmitted.
- the specific processing method has been described in the foregoing embodiment, and will not be repeated here.
- PUSCH2 is an available uplink transmission resource with a TB size larger than the data size of data1.
- PUSCH2 is an available resource that meets the preset conditions. Then use PUSCH2 as the first resource to transmit data1;
- the terminal device when the terminal device has data to be transmitted in data2, the TBS of PUSCH 1, 2, and 3 configured in the first message are all less than the data volume of data2. Therefore, the terminal device does not select any PUSCH resource for data2 transmission, but After entering the connected state, data2 is transmitted.
- the foregoing solution in this example is a solution description performed by sending a random access request to the network device through the first resource.
- Example 2 This example is different from Example 1 in that the preset conditions are different, specifically:
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource;
- meeting the time delay requirement of the data to be transmitted can be used in combination with the first condition, and can also be used in combination with the second condition.
- Step 61 is the same as step 41 and will not be described again.
- Step 62 When the terminal device is in an inactive state, among the multiple available resources, the TB size of the PUSCH resource is not less than the size of the data to be transmitted, and the available resources that meet the preset conditions, Determined as the first resource.
- it may be: judging whether the multiple available resources have available resources that meet the delay requirements of the data to be transmitted;
- the TB size of the PUSCH resource among the available resources that meet the delay requirement of the data to be transmitted is not less than the size of the data to be transmitted.
- the terminal device before performing this step, the terminal device also needs to obtain in advance the delay requirement for the data to be transmitted.
- the application layer when the UE in the inactive state initiates small data transmission, the application layer also indicates the delay requirement of the small data when it submits the data to the access layer, that is, packet delay.
- Time budget (PDB, packet delay budget).
- the time delay requirement can also be preset, which will not be exhaustive here.
- the time delay requirement of the data to be transmitted can be understood as: the time between the arrival of the data to be transmitted and the sending time, or it can be understood as the data to be transmitted need to be sent within a specified time after arrival, the specified
- the length of time can be regarded as the delay requirement.
- the terminal device selects the available MsgA resources within the delay requirements or the PUSCH TBS size information of these available MsgA resources according to the delay requirements of the data to be transmitted (or called small data), and then the terminal device Then determine whether the amount of data to be transmitted is not greater than the maximum TB size among these available resources.
- the terminal device when the terminal device is in an inactive state, it is determined whether there is a candidate uplink transmission resource that meets the delay requirement of the data to be transmitted among the available resources configured in the first message.
- the terminal device triggers a radio resource control RRC recovery process, and then transmits the data to be transmitted after entering the connected state.
- the processing of entering the connected state to send the data to be transmitted is the same as the description in the above example 1, and will not be repeated here.
- the data amount of the data to be transmitted is not greater than the size of the largest TB among the available resources that meet the time delay requirement of the data to be transmitted.
- the TB size of the PUSCH resource among the available resources that meet the delay requirement is not greater than the data volume of the data to be transmitted.
- Step 63 If the data volume of the data to be transmitted is greater than the size of the largest TB in the available resources that meet the time delay requirement, the terminal device triggers a radio resource control RRC recovery process, and transmits the to-be-transmitted data after entering the connected state. The data is transferred, and then the processing ends.
- the processing of the terminal device entering the connected state to send the data to be transmitted is the same as that of the foregoing example 1, and will not be repeated.
- Step 64 If the data volume of the data to be transmitted is not greater than the size of the largest TB among the available resources that meet the time delay requirement, the terminal device selects the available resources that meet the time delay requirement of the data to be transmitted , Select the first resource.
- the terminal device if the data volume of the data to be transmitted is not greater than the size of the maximum TB in the uplink transmission resources configured in the first message, the terminal device remains in the inactive state and further selects the TB Available resources whose size is greater than the data volume of the data to be transmitted.
- the first available resource among the available resources may be selected; or, among the available resources, the size of the transmission block TB is the smallest uplink transmission resource.
- the specific processing is the same as the foregoing example 1, and the description will not be repeated.
- the first resource selected based on this example is the first available resource whose TB size of the PUSCH resource among the available resources that meet the delay requirements of the data to be transmitted is not less than the size of the data to be transmitted;
- the first resource selected based on this example is the TB of the PUSCH resource among the multiple available resources whose PUSCH resource is not less than the size of the data to be transmitted among the available resources to meet the delay requirements of the data to be transmitted Available resources with the smallest size.
- the corresponding first RO resource and/or first preamble may be determined according to the first mapping relationship and the second mapping relationship, and then it may also include step 65: On the first resource, a random access request is sent to the network device, where the random access request includes data to be transmitted.
- the specific processing is the same as the previous example, and will not be repeated here.
- the terminal device When the terminal device has data to be transmitted data1, it selects candidate uplink transmission resources that meet the delay requirements of data1 from the configured uplink transmission resources according to the delay requirements corresponding to data1, which are respectively PUSCH1, 2, 3 in the figure;
- the data size (size) of the data to be transmitted data1 is not greater than the maximum TBS (TB size) of the candidate uplink transmission resource; suppose the TB size (size) corresponding to PUSCH 1, 2, 3 is represented as TBS 1, 2, 3, After the judgment here, it can be determined that the data size of data1 is larger than TBS1 and smaller than TBS2 and TBS3;
- the available resources are PUSCH 2 and 3; according to the preset conditions, the one with the smallest TBS among PUSCH 2 and 3 is selected as the first resource, that is, the smallest PUSCH 3 that satisfies the delay requirement and the data volume requirement is selected as the first resource.
- PUSCH3 transmits data1.
- the resource selection in addition to the method corresponding to the above process can also include other processing methods, which are described in combination with the following:
- the terminal device When the terminal device is in an inactive state, it is determined whether the data volume of the data to be transmitted is not greater than the size of the largest TB in the available resources configured in the first message.
- the terminal device selects, from the available resources, the available resources whose TB size is not less than the data volume of the data to be transmitted and that meets the delay requirements of the data to be transmitted, and then from the available resources selected in this part, Select the first available resource as the first resource, or select the available resource with the smallest TB size from the selected available resources as the first resource.
- the terminal device may also include that if there is no uplink transmission resource that meets the time delay requirement of the data to be transmitted, the terminal device triggers a radio resource control RRC recovery process, and transmits the data to be transmitted after entering the connected state.
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource;
- Step 81 is the same as step 41 and will not be repeated here.
- the terminal device determines, among the multiple available resources, an available resource whose TB size of the PUSCH resource is not less than the size of the data to be transmitted and meets a preset condition as the first resource.
- step 82 in the inactive state, according to the access stratum (AS, Access Stotum) configuration parameters corresponding to the data to be transmitted, and the data volume of the data to be transmitted, from the available resources Determine the first resource.
- AS Access Stotum
- a terminal device in an inactive state When a terminal device in an inactive state initiates small data transmission, it determines at least one available MSGA resource configuration according to the AS layer (access layer) configuration parameters corresponding to the small data and the amount of data to be transmitted.
- AS layer access layer
- AS configuration parameters include at least one of the following:
- the logical channel corresponding to the data to be transmitted
- MSGA resources that can be used by the data to be transmitted.
- the AS layer configuration parameter can be a logical channel corresponding to the small data; or, it can also be a proprietary configuration information indicating that the small data can be transmitted on those MSGA resources, and the specific MSGA can be Which uplink transmission resources in
- the AS configuration parameter may be pre-configured; for example, it may be configured to the terminal device by the network device (such as the base station) when the connection between the terminal device and the network device was released last time.
- the MSGA resources that can be used by the data to be transmitted include at least one uplink transmission resource.
- it can include:
- the terminal device Determine whether there is an available resource corresponding to the AS configuration parameter among the available resources configured in the first message. If not, the terminal device triggers the radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and then ends deal with.
- the processing of the terminal device entering the connected state to send the data to be transmitted is the same as in the foregoing example 1, and will not be repeated;
- the terminal device triggers the radio resource control RRC recovery process, and transmits after entering the connected state
- the data to be transmitted ends the processing
- the selection of available resources in this step may include:
- the terminal device triggers a radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and ends the processing;
- the terminal device triggers a radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and then ends the processing;
- the above-mentioned available resources corresponding to the AS configuration parameters can be determined according to the aforementioned third mapping relationship whether there is an uplink transmission resource matching the logical channel corresponding to the data to be transmitted; or, according to all the AS configuration parameters.
- the MSGA resources that can be used for the data to be transmitted include at least one uplink transmission resource for determination.
- Step 83 Send a random access request to the network device on the first resource, where the random access request includes data to be transmitted.
- the specific processing is the same as the previous example, and will not be repeated here.
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource;
- examples 2 and 3 are used in combination, for example: when determining the resource, the delay requirements corresponding to the data to be transmitted, the AS configuration parameters, and the data volume of the data to be transmitted can be combined for judgment.
- the first available resource is selected as the first resource, or the available resource with the smallest TB size is selected as the first resource.
- it may first determine whether there is a third group of uplink transmission resources matching the AS configuration parameters in the uplink transmission resources configured by the first message, and if not, enter the connected state to send the number of transmissions to be transmitted;
- the first available resource is selected as the first resource, or the available resource with the smallest TB size is selected as the first resource.
- the device can first determine whether the maximum TB of the uplink transmission resource configured in the first message is not less than the data volume of the data to be transmitted, and if it is less, enter the connected state to send the data to be transmitted;
- the first available resource is selected as the first resource, or the available resource with the smallest TB size is selected as the first resource.
- the processing of how to select the first resource is the same as the foregoing example 1-3. The difference is only in the configuration of the first message, which has been explained in the foregoing embodiment and will not be repeated here.
- the transmission of the data to be transmitted according to the selected first resource is also different from the foregoing example 1-3.
- the data to be transmitted can be transmitted directly according to the selected first resource, and there is no The processing of RO and/or Preamble selection.
- the first resource can be selected from the available resources to transmit the data to be transmitted.
- the above scheme is especially suitable for the processing of small data transmission with two-step random access. It provides the option of selecting the uplink transmission resource that best meets the current needs from the available resources, and also provides a resource selection method when there are multiple available resources. plan.
- the above-mentioned embodiment proposes a scheme for selecting the first PUSCH that meets the data volume requirement, which is relatively simple to implement; it further provides a way to select the PUSCH resource with the smallest TBS that meets the data volume requirement according to the delay requirement, which can further save Network resources, and conducive to terminal energy saving.
- the embodiment of the present invention provides a terminal device, as shown in FIG. 9, including:
- the first communication unit 91 in an inactive state, sends data to be transmitted to the network device on the first resource; wherein, the first resource is one of a plurality of available resources.
- a network device to receive the data to be transmitted from the terminal device on the network device side, includes:
- the second communication unit 1001 receives data to be transmitted on a first resource; wherein, the first resource is one of a plurality of available resources.
- the data to be transmitted may be small data (Small Data) and/or connection request data.
- the network device may be a base station on the network side, such as an eNB, a gNB, and so on.
- the first communication unit 91 of the terminal device may also receive configuration information; that is, the second communication unit 1001 of the network device may configure the terminal device.
- the first message is used to indicate the multiple available resources.
- each available resource includes an uplink transmission resource.
- each available resource in the multiple available resources includes a Physical Uplink Shared Channel (PUSCH) resource.
- PUSCH Physical Uplink Shared Channel
- the first resource includes a first PUSCH resource.
- the size of the TB size of the first PUSCH resource is not less than the size of the data to be transmitted.
- the first PUSCH resource included in the first resource is a resource with a transmission block size (TB Size) greater than the size of the data to be transmitted.
- TB Size transmission block size
- the first message is a system message.
- MIB Master Information Block
- SIB System Information Block
- the first communication unit 91 of the terminal device sends a random access request to the network device on the first resource, and the random access request includes the data to be transmitted.
- the second communication unit 1001 of the network device receives the random access request sent by the terminal device on the first resource, and the random access request includes the data to be transmitted.
- the random access request includes a message A msg A;
- the first resource includes a first random access opportunity RO resource and the first PUSCH resource;
- the first RO resource is used to transmit the first preamble of the msg A, and the first PUSCH resource is used to transmit the data to be transmitted.
- MSGA is composed of a preamble and the data to be transmitted.
- the data to be transmitted may specifically include the aforementioned application layer data, that is, small data, and/or connection request information, such as a radio resource control (RRC, Radio Resource Control) recovery request (Resume Request).
- RRC Radio Resource Control
- each available resource includes an RO resource and a PUSCH resource, and there is a first mapping relationship between the PUSCH resource and the RO resource; wherein, based on the first The mapping relationship determines the first RO resource corresponding to the first PUSCH resource.
- mapping relationship between the PUSCH resource and the preamble; wherein, the first preamble corresponding to the first PUSCH resource is determined based on the second mapping relationship.
- the first message is a pre-configured authorization message.
- the pre-configuration authorization message is radio resource control RRC signaling.
- the first resource is the first PUSCH resource
- the first PUSCH resource is used to transmit the data to be transmitted.
- the scenario targeted by this case is a Configured Grant (CG) scenario.
- CG Configured Grant
- PUSCH physical uplink shared channel
- the first message is RRC signaling used for CG resource configuration, where the content that can be included can have multiple available resources; wherein, each available resource includes one uplink transmission resource, specifically, each available resource includes A physical uplink shared channel PUSCH resource.
- the terminal device further includes: the first processing unit 92 maintains an effective timing advance TA value, and the effective TA value is used for the terminal device to perform uplink synchronization. That is, within a period of time, the moving distance of the terminal device is limited, and the TA value within this period of time can be set unchanged by default to achieve uplink synchronization.
- this embodiment describes how to determine the first resource in combination with the following multiple examples:
- the first communication unit 91 of the terminal device receives the first message
- the first message is a system message.
- the system message includes a master information block (MIB, Master Information Block) and/or a system information block (SIB, System Information Block).
- MIB Master Information Block
- SIB System Information Block
- a 2-step RACH resource is configured, specifically, an MSGA resource configured with a 2-step RACH resource; wherein, it may include RO and/or uplink transmission resources.
- the uplink transmission resources may be PUSCH resources.
- the uplink transmission resources may be N sets, where each set of PUSCH resources has a different TB size.
- mapping relationship of PUSCH resources can be:
- the first mapping relationship includes: M sets of RO resources and N sets of PUSCH resources, which can be mapped one-to-one or not one-to-one, which has been described in the foregoing embodiment and will not be repeated;
- the second mapping relationship includes a set of RO resources, the corresponding relationship between L preamble (group) and N sets of PUSCH resources; when L and N are the same, the preamble (group) can be When there is a one-to-one correspondence with PUSCH resources and L and N are different, the preamble and PUSCH may not correspond one-to-one.
- the first processing unit 92 of the terminal device determines the first resource from the multiple available resources.
- the first processing unit 92 of the terminal device determines, among the multiple available resources, the available resource whose TB size of the PUSCH resource is not less than the size of the data to be transmitted and meets a preset condition as the first One resource.
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource.
- the first communication unit 91 of the terminal device sends a random access request to the network device on the first resource, where the random access request includes the data to be transmitted.
- the random access request includes a message A msg A
- the first resource includes a first random access occasion RO resource and the first PUSCH resource
- the first RO resource is used to transmit the first message of msg A.
- the first PUSCH resource is used to transmit the data to be transmitted.
- Example 2 This example is different from Example 1 in that the preset conditions are different, specifically:
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource;
- meeting the time delay requirement of the data to be transmitted can be used in combination with the first condition, and can also be used in combination with the second condition.
- the first processing unit 92 of the terminal device determines, among the multiple available resources, the TB size of the PUSCH resource is not less than the size of the data to be transmitted, and the available resources that meet the preset conditions , Determined as the first resource.
- it may be: judging whether the multiple available resources have available resources that meet the delay requirements of the data to be transmitted;
- the TB size of the PUSCH resource among the available resources that meet the delay requirement of the data to be transmitted is not less than the size of the data to be transmitted.
- the terminal device before performing this step, the terminal device also needs to obtain in advance the delay requirement for the data to be transmitted.
- the application layer when the UE in the inactive state initiates small data transmission, the application layer also indicates the delay requirement of the small data when it submits the data to the access layer, that is, packet delay.
- Time budget (PDB, packet delay budget).
- the time delay requirement can also be preset, which will not be exhaustive here.
- the time delay requirement of the data to be transmitted can be understood as: the time between the arrival of the data to be transmitted and the sending time, or it can be understood as the data to be transmitted need to be sent within a specified time after arrival, the specified
- the length of time can be regarded as the delay requirement.
- the terminal device selects the available MsgA resources within the delay requirements or the PUSCH TBS size information of these available MsgA resources according to the delay requirements of the data to be transmitted (or called small data), and then the terminal device Then determine whether the amount of data to be transmitted is not greater than the maximum TB size among these available resources.
- the terminal device when the terminal device is in an inactive state, it is determined whether there is a candidate uplink transmission resource that meets the delay requirement of the data to be transmitted among the available resources configured in the first message.
- the terminal device triggers a radio resource control RRC recovery process, and then transmits the data to be transmitted after entering the connected state.
- the processing of entering the connected state to send the data to be transmitted is the same as the description in the above example 1, and will not be repeated here.
- the data amount of the data to be transmitted is not greater than the size of the largest TB among the available resources that meet the time delay requirement of the data to be transmitted.
- the TB size of the PUSCH resource among the available resources that meet the delay requirement is not greater than the data volume of the data to be transmitted.
- the first processing unit 92 of the terminal device triggers the radio resource control RRC recovery process if the amount of data to be transmitted is greater than the size of the largest TB in the available resources that meet the time delay requirement, and transmits the data after entering the connected state. The data is to be transmitted, and then the processing ends. No longer.
- the first processing unit 92 of the terminal device selects the available resources that meet the time delay requirement of the data to be transmitted , Select the first resource.
- the terminal device if the data volume of the data to be transmitted is not greater than the size of the maximum TB in the uplink transmission resources configured in the first message, the terminal device remains in the inactive state and further selects the TB Available resources whose size is greater than the data volume of the data to be transmitted.
- the first available resource among the available resources may be selected; or, among the available resources, the size of the transmission block TB is the smallest uplink transmission resource.
- the specific processing is the same as the foregoing example 1, and the description will not be repeated.
- the preset condition includes at least one of the following:
- the TB size of the PUSCH resource among the multiple available resources is not less than the first available resource of the size of the data to be transmitted;
- the available resource with the smallest TB size of the PUSCH resource is not less than the size of the data to be transmitted, the available resource with the smallest TB size of the PUSCH resource;
- the first processing unit 92 of the terminal device determines, among the multiple available resources, the available resource whose TB size of the PUSCH resource is not less than the size of the data to be transmitted and meets a preset condition as the first resource .
- the first data is determined from the available resources. resource.
- AS Access Stratum
- a terminal device in an inactive state When a terminal device in an inactive state initiates small data transmission, it determines at least one available MSGA resource configuration according to the AS layer (access layer) configuration parameters corresponding to the small data and the amount of data to be transmitted.
- AS layer access layer
- AS configuration parameters include at least one of the following:
- the logical channel corresponding to the data to be transmitted
- MSGA resources that can be used by the data to be transmitted.
- the AS layer configuration parameter can be a logical channel corresponding to the small data; or, it can also be a proprietary configuration information indicating that the small data can be transmitted on those MSGA resources, and the specific MSGA can be Which uplink transmission resources in
- the AS configuration parameter may be pre-configured; for example, it may be configured to the terminal device by the network device (such as the base station) when the connection between the terminal device and the network device was released last time.
- the MSGA resources that can be used by the data to be transmitted include at least one uplink transmission resource.
- it can include:
- the terminal device Determine whether there is an available resource corresponding to the AS configuration parameter among the available resources configured in the first message. If not, the terminal device triggers the radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and then ends deal with.
- the processing of the terminal device entering the connected state to send the data to be transmitted is the same as in the foregoing example 1, and will not be repeated;
- the terminal device triggers the radio resource control RRC recovery process, and transmits after entering the connected state
- the data to be transmitted ends the processing
- the selection of available resources in this step may include:
- the terminal device triggers a radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and ends the processing;
- the terminal device triggers a radio resource control RRC recovery process, enters the connected state, transmits the data to be transmitted, and then ends the processing;
- the above-mentioned available resources corresponding to the AS configuration parameters can be determined according to the aforementioned third mapping relationship whether there is an uplink transmission resource matching the logical channel corresponding to the data to be transmitted; or, according to all the AS configuration parameters.
- the MSGA resources that can be used for the data to be transmitted include at least one uplink transmission resource for determination.
- the processing of how to select the first resource is the same as the foregoing example 1-3. The difference is only in the configuration of the first message, which has been explained in the foregoing embodiment and will not be repeated here.
- the transmission of the data to be transmitted according to the selected first resource is also different from the foregoing example 1-3.
- the data to be transmitted can be transmitted directly according to the selected first resource, and there is no The processing of RO and/or Preamble selection.
- the first resource can be selected from the available resources to transmit the data to be transmitted.
- the above scheme is especially suitable for the processing of small data transmission with two-step random access. It provides the option of selecting the uplink transmission resource that best meets the current needs from the available resources, and also provides a resource selection method when there are multiple available resources. plan.
- the above-mentioned embodiment proposes a scheme for selecting the first PUSCH that meets the data volume requirement, which is relatively simple to implement; it further provides a way to select the PUSCH resource with the smallest TBS that meets the data volume requirement according to the delay requirement, which can further save Network resources, and conducive to terminal energy saving.
- FIG. 11 is a schematic structural diagram of a communication device 1400 according to an embodiment of the present invention.
- the communication device in this embodiment may be specifically the terminal device or the network device in the foregoing embodiment.
- the communication device 1400 shown in FIG. 11 includes a processor 1410, and the processor 1410 can call and run a computer program from a memory to implement the method in the embodiment of the present invention.
- the communication device 1400 may further include a memory 1420.
- the processor 1410 can call and run a computer program from the memory 1420 to implement the method in the embodiment of the present invention.
- the memory 1420 may be a separate device independent of the processor 1410, or may be integrated in the processor 1410.
- the communication device 1400 may further include a transceiver 1430, and the processor 1410 may control the transceiver 1430 to communicate with other devices. Specifically, it may send information or data to other devices, or receive other devices. Information or data sent by the device.
- the transceiver 1430 may include a transmitter and a receiver.
- the transceiver 1430 may further include an antenna, and the number of antennas may be one or more.
- the communication device 1400 may specifically be a corresponding process implemented by a terminal device or a network device in the embodiment of the present invention, and for the sake of brevity, details are not described herein again.
- Fig. 12 is a schematic structural diagram of a chip according to an embodiment of the present invention.
- the chip 1500 shown in FIG. 12 includes a processor 1510, and the processor 1510 can call and run a computer program from the memory to implement the method in the embodiment of the present invention.
- the chip 1500 may further include a memory 1520.
- the processor 1510 can call and run a computer program from the memory 1520 to implement the method in the embodiment of the present invention.
- the memory 1520 may be a separate device independent of the processor 1510, or may be integrated in the processor 1510.
- the chip 1500 may further include an input interface 1530.
- the processor 1510 can control the input interface 1530 to communicate with other devices or chips, and specifically, can obtain information or data sent by other devices or chips.
- the chip 1500 may further include an output interface 1540.
- the processor 1510 can control the output interface 1540 to communicate with other devices or chips, and specifically, can output information or data to other devices or chips.
- the chip can be applied to the corresponding process implemented by the terminal device or the network device in the embodiment of the present invention, and for the sake of brevity, it will not be repeated here.
- the chip mentioned in the embodiment of the present invention may also be referred to as a system-on-chip, a system-on-chip, a system-on-chip, or a system-on-chip, etc.
- the processor in the embodiment of the present invention may be an integrated circuit chip with signal processing capability.
- the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
- the above-mentioned processor may be a general-purpose processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (Field Programmable Gate Array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
- the memory in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory. It should be noted that the memories of the systems and methods described herein are intended to include, but are not limited to, these and any other suitable types of memories.
- the memory in the embodiment of the present invention may also be static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), Synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access memory (double data rate SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection Dynamic random access memory (synch link DRAM, SLDRAM) and direct memory bus random access memory (Direct Rambus RAM, DR RAM) and so on. That is to say, the memory in the embodiment of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.
- FIG. 13 is a schematic block diagram of a communication system 1600 according to an embodiment of the present application. As shown in FIG. 13, the communication system 1600 includes a network device 1620 and a terminal device 1610.
- the network device 1620 can be used to implement the corresponding functions implemented by the communication device in the above method, and the terminal device 1610 can be used to implement the corresponding functions implemented by the terminal in the above method. For brevity, details are not described herein again.
- the embodiment of the present invention also provides a computer-readable storage medium for storing computer programs.
- the computer-readable storage medium can be applied to the network device or satellite or terminal device in the embodiment of the present invention, and the computer program causes the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention, For the sake of brevity, I will not repeat them here.
- the embodiment of the present invention also provides a computer program product, including computer program instructions.
- the computer program product can be applied to the network device or satellite or terminal device in the embodiment of the present invention, and the computer program instructions cause the computer to execute the corresponding process implemented by the network device in each method of the embodiment of the present invention, for It's concise, so I won't repeat it here.
- the embodiment of the present invention also provides a computer program.
- the computer program can be applied to the network device or satellite or terminal device in the embodiment of the present invention.
- the computer program runs on the computer, the computer can execute the network device implementation of each method in the embodiment of the present invention. For the sake of brevity, the corresponding process will not be repeated here.
- the disclosed system, device, and method may be implemented in other ways.
- the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solutions of the embodiments.
- the functional units in the various embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
- the function is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer readable storage medium.
- the technical solution of the present invention essentially or the part that contributes to the existing technology or the part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including Several instructions are used to make a computer device (which may be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the methods described in the various embodiments of the present invention.
- the aforementioned storage media include: U disk, mobile hard disk, read-only memory (Read-Only Memory,) ROM, random access memory (Random Access Memory, RAM), magnetic disk or optical disk and other media that can store program code .
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Abstract
本发明公开了一种数据传输方法、终端设备、网络设备、芯片、计算机可读存储介质、计算机程序产品以及计算机程序,所述方法包括:终端设备处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
Description
本发明涉及通信领域,尤其涉及一种数据传输方法、终端设备、网络设备、芯片、计算机可读存储介质、计算机程序产品以及计算机程序。
在相关技术中,网络会通过系统信息为终端设备配置当前网络允许传输的最大传输块(TB,Transport Block)大小(size),终端设备判断自己待传输数据的数据量,如果小于最大TB size,则可以发起数据提前传输(EDT,Early Data Transmission)传输;反之,终端设备使用正常的连接建立过程,进入连接态传输数据。然而,引入小数据传输后,如何配置或使用上行传输资源是需要解决的问题。
发明内容
为解决上述技术问题,本发明实施例提供了一种数据传输方法、终端设备、网络设备、芯片、计算机可读存储介质、计算机程序产品以及计算机程序。
第一方面,提供了一种数据传输方法,包括:
终端设备处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
第二方面,提供了一种数据传输方法,包括:
网络设备在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
第三方面,提供了一种终端设备,包括:
第一通信单元,处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
第四方面,提供了一种网络设备,包括:
第二通信单元,在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
第五方面,提供了一种终端设备,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,
其中,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如上述方法的步骤。
第六方面,提供了一种网络设备,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,
其中,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如上述方法的步骤。
第七方面,提供了一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如上所述的方法。
第八方面,提供了一种计算机可读存储介质,所述计算机可读存储介质用于存储计算机程序,所述计算机程序使得计算机执行如上所述方法的步骤。
第九方面,提供了一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如上所述的方法。
第十方面,提供了一种计算机程序,所述计算机程序使得计算机执行如上所述的方法。
通过采用本实施例提供的方案,从可用资源中,选取第一资源进行待传输数据的传输。上述方案提供了从可用资源中选择最符合当前需要的上行传输资源的处理。
图1-1是本申请实施例提供的一种通信系统架构的示意性图一;
图1-2是相关技术中EDT的处理示意性图;
图1-3是四步随机接入处理流程示意图;
图1-4是2步随机接入处理流程示意图;
图2是本申请实施例提供的一种数据传输方法流程示意图一;
图3是本申请实施例提供的一种数据传输方法流程示意图二;
图4是本申请实施例提供的一种数据传输方法流程示意图三;
图5是本申请实施例提供的一种处理场景示意图一;
图6是本申请实施例提供的一种数据传输方法流程示意图四;
图7是本申请实施例提供的一种处理场景示意图二;
图8是本申请实施例提供的一种数据传输方法流程示意图五;
图9是本申请实施例提供的一种终端设备组成结构示意图;
图10是本申请实施例提供的一种网络设备组成结构示意图;
图11为本发明实施例提供的一种通信设备组成结构示意图;
图12是本申请实施例提供的一种芯片的示意性框图;
图13是本申请实施例提供的一种通信系统架构的示意性图二。
为了能够更加详尽地了解本发明实施例的特点与技术内容,下面结合附图对本发明实施例的实现进行详细阐述,所附附图仅供参考说明之用,并非用来限定本发明实施例。
下面将结合本申请实施例中的附图,对本申请实施例中的技术方案进行描述,显然,所描述的实施例是本申请一部分实施例,而不是全部的实施例。基于本申请中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
本申请实施例的技术方案可以应用于各种通信系统,例如:全球移动通讯(Global System of Mobile communication,GSM)系统、码分多址(Code Division Multiple Access,CDMA)系统、宽带码分多址(Wideband Code Division Multiple Access,WCDMA)系统、通用分组无线业务(General Packet Radio Service,GPRS)、长期演进(Long Term Evolution,LTE)系统、LTE频分双工(Frequency Division Duplex,FDD)系统、LTE时分双工(Time Division Duplex,TDD)、通用移动通信系统(Universal Mobile Telecommunication System,UMTS)、全球互联微波接入(Worldwide Interoperability for Microwave Access,WiMAX)通信系统或5G系统等。
示例性的,本申请实施例应用的通信系统100可以如图1-1所示。该通信系统100可以包括网络设备110,网络设备110可以是与UE120(或称为通信终端设备、终端设备)通信的设备。网络设备110可以为特定的地理区域提供通信覆盖,并且可以与位于该覆盖区域内的UE进行通信。可选地,该网络设备110可以是GSM系统或CDMA系统中的网络设备(Base Transceiver Station,BTS),也可以是WCDMA系统中的网络设备(NodeB,NB),还可以是LTE系统中的演进型网络设备(Evolutional Node B,eNB或eNodeB),或者是云无线接入网络(Cloud Radio Access Network,CRAN)中的无线控制器,或者该网络设备可以为移动交换中心、中继站、接入点、车载设备、可穿戴设备、集线器、交换机、网桥、路由器、5G网络中的网络侧设备或者未来演进的公共陆地移动网络(Public Land Mobile Network,PLMN)中的网络设备等。
该通信系统100还包括位于网络设备110覆盖范围内的至少一个UE120。作为在此使用的“UE”包括但不限于经由有线线路连接,如经由公共交换电话网络(Public Switched Telephone Networks,PSTN)、数字用户线路(Digital Subscriber Line,DSL)、数字电缆、直接电缆连接;和/或另一数据连接/网络;和/或经由无线接口,如,针对蜂窝网络、无线局域网(Wireless Local Area Network,WLAN)、诸如DVB-H网络的数字电视网络、卫星网络、AM-FM广播发送器;和/或另一UE的被设置成接收/发送通信信号的装置;和/或物联网(Internet of Things,IoT)设备。被设置成通过无线接口通信的UE可以被称为“无线通信终端设备”、“无线终端设备”或“移动终端设备”。
随着人们对速率、延迟、高速移动性、能效的追求以及未来生活中业务的多样性、复杂性,为此3GPP国际标准组织开始研发5G。5G的主要应用场景为:增强移动超宽带(eMBB)、低时延高可靠通信(URLLC)、大规模机器类通信(mMTC)。eMBB仍然以用户获得多媒体内容、服务和数据为目标,其需求增长十分迅速。另一方面,由于eMBB可能部署在不同的场景中,比如室内,市区,农村等,其能力和需求的差别也比较大,所以不能一概而论,必须结合具体的部署场景详细 分析。URLLC的典型应用包括:工业自动化,电力自动化,远程医疗操作(手术),交通安全保障等。mMTC的典型特点包括:高连接密度,小数据量,时延不敏感业务,模块的低成本和长使用寿命等。
在NR早期部署时,完整的NR覆盖很难获取,所以典型的网络覆盖是广域的LTE覆盖和NR的孤岛覆盖模式。而且大量的LTE部署在6GHz以下,可用于5G的6GHz以下频谱很少。所以NR必须研究6GHz以上的频谱应用,而高频段覆盖有限、信号衰落快。同时为了保护移动运营商前期在LTE投资,提出了LTE和NR之间tight interworking的工作模式。NR也可以独立工作。5G中,最大的信道带宽可以是400MHZ(wideband carrier),相比于LTE最大20M带宽来说,带宽很大。
在LTE中,已经引入了早期数据传输(EDT,early data transmission),可以称为小数据传输,在小数据传输的过程中,终端设备可能始终保持在idle(空闲)状态或者suspend(中止)状态或者inactive(非激活)状态,完成上行和/或下行小数据包的传输。例如用户面传输方案的流程如图1-2所示,可以包括:终端设备和网络设备(eNB)之间完成随机接入前导码发送以及随机接入响应后,步骤1-4:终端设备发送RRC连接恢复请求,其中可以包括有恢复ID、恢复原因、短恢复(shortResume)MAC-I以及上行数据,网络侧进行UE上下文恢复处理,包括有网络侧eNB以及MME和S-GW之间进行上下文恢复请求、调整承载以及UE上下文恢复响应的处理。步骤5-6,eNB和S-GW之间进行上行数据和下行数据的传输;步骤7-8,S-GW向MME发送调整承载,MME触发eNB进行SI中止过程,最终eNB通知UE进行RRC连接释放。对于上述数据传输流程来说,其实终端设备并没有进入连接状态就完成了小数据包的传输,这类传输与进入连接态传输MBB业务不同。
在配置上,网络会在SIB(系统信息块)2上配置一个当前网络允许传输的最大TB size,终端设备判断自己待传输的数据量,如果小于这个广播的最大TB size,则终端设备可以发起EDT传输;反之,终端设备使用正常的连接建立过程,进入连接态传输数据。
传统的四步基于竞争的随机接入机制中,随机接入过程主要有如下事件触发:
-Initial access from RRC_IDLE(RRC空闲态的初始接入);
-RRC Connection Re-establishment procedure(RRC连接重建立过程);
-Handover(切换);
-DL or UL data arrival during RRC_CONNECTED when UL synchronisation status is"non-synchronised";(上行同步状态为“非同步”时,上行或下行数据在RRC-连接态到达)
-UL data arrival during RRC_CONNECTED when there are no PUCCH resources for SR available;(当调度请求(SR)无PUCCH资源可用的时候,终端设备处于RRC-连接态时上行数据到达);
-SR failure;(SR失败);
-Request by RRC upon synchronous reconfiguration;(同步重新配置由RRC请求)
-Transition from RRC_INACTIVE;(RRC-非激活态中的传输)
-To establish time alignment at SCell addition;(在辅小区附着时进行时间对齐建立)
-Request for Other SI(see subclause 7.3);(用于请求其他SI)
-Beam failure recovery.(波束失败恢复)
对于现有的四步竞争随机接入过程,如图1-3所示,详细的步骤如下:
1、终端选择PRACH资源(时频资源和码域资源),在选择的PRACH时频资源上发送选择的前导(preamble),基站基于preamble可以估计上行Timing,和终端传输第三部消息所需要的grant(授权资源)大小。
2、网络设备发送随机接入响应(RAR)给终端;终端发送第一步消息(msg1)之后,开启一个RAR window,在该window内监测PDCCH。该PDCCH是用RA-RNTI加扰的PDCCH。
3、终端进行调度传输,也就是在调度资源上传输RRC(无线资源控制,Radio Resource Control)消息。Msg3的消息主要用于通知网络该RACH过程是由什么事件触发。比如,如果是初始接入随机过程,则在msg3中会携带UE ID和establishment cause;如果是RRC重建,则会携带连接态UE标示和establishment cause;同时,msg3携带的ID可以使得竞争冲突在第四部得到解决。
4、竞争冲突解决,也就是Msg4,Msg4有两个作用,一个是用于竞争冲突解决;第二是向终端传输RRC配置消息。
两步随机接入可以降低信令开销。如图1-4所示,2步随机接入基本的方式是,msgA传输四步RACH的msg1+msg3,msgB传输四步RACH的msg2+msg4。
应理解,本文中术语“系统”和“网络”在本文中常被可互换使用。本文中术语“和/或”,仅仅是一 种描述关联对象的关联关系,表示可以存在三种关系,例如,A和/或B,可以表示:单独存在A,同时存在A和B,单独存在B这三种情况。另外,本文中字符“/”,一般表示前后关联对象是一种“或”的关系。
为了能够更加详尽地了解本发明实施例的特点与技术内容,下面结合附图对本发明实施例的实现进行详细阐述,所附附图仅供参考说明之用,并非用来限定本发明实施例。
本发明实施例提供一种数据传输方法,如图2所示,包括:
步骤21:终端设备处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
相应的,在网络设备侧的一种数据传输方法,如图3所示,包括:
步骤31:网络设备在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
本实施例中,所述待传输数据可以为小数据(Small Data)和/或连接请求数据。
所述网络设备可以为网络侧的基站,比如eNB、gNB等等。
在执行本实施例提供的上述方案之前,终端设备还可以接收配置信息;也就是网络设备可以为终端设备进行配置,具体可以包括:接收所述网络设备的第一消息,所述第一消息用于指示所述多个可用资源。相应的,所述网络设备为终端设备发送第一消息。
所述多个可用资源中,每个可用资源包括一个上行传输资源,具体的,所述多个可用资源中每个可用资源包括一物理上行共享信道(PUSCH,Physical Uplink Share CHannel)资源。
所述第一资源包括第一PUSCH资源。并且,所述第一PUSCH资源的TB size大小不小于所述待传输数据的大小。
也就是说,第一资源所包含的第一PUSCH资源,为传输块大小(TB Size)大于所述待传输数据的大小的资源。
在一种情况下,
所述第一消息为系统消息。比如,可以通过MIB(主信息块)和/或系统信息块SIB携带,这里不做穷举。
所述在第一资源上向网络设备发送待传输数据,包括:
在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。相应的,网络设备在第一资源上,接收终端设备发送的随机接入请求,所述随机接入请求包括待传输数据。
所述随机接入请求包括消息A msg A;
也就是这种情况中,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源;
所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
具体来说,MSGA由前导码preamble以及所述待传输数据组成。其中,所述待传输数据具体可以包括前述应用层数据,也就是小数据,和/或连接请求信息,比如无线资源控制(RRC,Radio Resource Control)恢复请求(Resume Request)。
需要理解的是,第一消息中包含的可用资源为一个或多个,或者可以为N个(N大于等于1);和/或,第一消息中包含的RO资源为一个或多个RO资源,或者可以为M个RO资源(M大于等于1)。其中,M与N可以相同或不同。
这种情况下,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
所述PUSCH资源与前导码之间存在第二映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
可以理解为,在第一消息中,除了配置一个或多个(N个)PUSCH资源、和/或,一个或多个(M个)RO资源之外,还可以配置第一映射关系以及第二映射关系。
再进一步地,所述第一映射关系中,包含有N个上行传输资源与M个RO资源之间的对应关系,这里,N可以等于M,也就是上行传输资源可以与RO资源之间一一对应,又或者,N可以不等于M,那么上行传输资源与RO资源之间可以是一对多或多对一的映射关系。第二映射关系中,N个上行传输资源可以与L个(L为大于等于1的整数)前导码对应;N可以等于L,那么上行传输资源与前导码之间是一一对应的关系,又或者,N可以不等于L,那么上行传输资源和前导码之间是一对多或多对一的对应关系。
也就是说,终端设备在发送MSGA的时候,可以根据第一映射关系确定第一PUSCH对应的第一RO资源,和/或,可以根据第二映射关系确定第一PUSCH对应的第一前导码;进而,利用第一前导码和/或第一RO资源,采用第一PUSCH传输包含有待传输数据的MSGA。
另一种情况中,所述第一消息为预配置授权消息。
所述预配置授权消息为无线资源控制RRC信令。
这种情况下,所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
本情况与前一种情况不同之处在于,本情况针对的场景为配置授权(CG,Configured Grant)场景。关于CG场景,具体来说,为了更好地服务于周期性的业务,引入了预配置的资源的概念,下行称为半持续调度(SPS,Semi-Persistent Scheduling),上行称为配置授权(CG,Configured Grant)。NR支持以下两类上行配置授权的传输:
基于第一类配置授权(configured grant Type 1)的物理上行共享信道(PUSCH)传输:由网络无线资源控制(RRC)配置包括时域资源,频域资源,时域资源的周期,MCS,重复次数,跳频,HARQ进程数等在内的全部传输资源和传输参数。终端接收到该RRC配置后,可立即使用所配置的传输参数在配置的时频资源上进行PUSCH传输。
基于第二类配置授权(configured grant Type 2)的PUSCH传输:采用两步资源配置的方式:首先,由网络RRC配置包括时域资源的周期,重复次数,跳频,HARQ进程数等在内的传输资源和传输参数;然后由使用CS-RNTI加扰的PDCCH激活第二类基于配置授权的PUSCH传输,并同时配置包括时域资源,频域资源,MCS等在内的其他传输资源和传输参数。终端设备在接收到RRC配置参数时,不能立即使用该配参数配置的资源和参数进行PUSCH传输,而必须等接收到相应的PDCCH激活并配置其他资源和参数后,才能进行PUSCH传输。
本情况主要适用于上述第一类配置授权(configured grant Type 1)的物理上行共享信道(PUSCH)传输的场景中。也就是说,第一消息为用于CG资源配置的RRC信令,其中,可以包括的内容可以有多个可用资源;其中,每个可用资源包括一个上行传输资源,具体为每一个可用资源包括一物理上行共享信道PUSCH资源。
进一步地,所述在第一资源上向网络设备发送待传输数据之前,所述方法还包括:所述终端设备维护一有效定时提前TA值,所述有效TA值用于所述终端设备进行上行同步。也就是,一段时间内,终端设备的移动距离是有限的,可以将这段时间内的TA值默认是不变的以实现上行同步。
基于此,本实施例结合以下多个示例对如何确定第一资源进行说明:
示例1、
参见图4,本示例提供的方案可以包括:
步骤41、终端设备接收第一消息;相应的,网络设备发送第一消息。
其中,所述第一消息为系统消息。
所述系统消息包括主信息块(MIB,Master Information Block)和/或系统信息块(SIB,System Information Block)。
比如,可以为网络设备向终端设备发送系统广播消息;其中,网络设备可以为终端设备的服务小区的网络设备(基站,比如eNB、或gNB等)。
在所述系统广播消息中配置了2步RACH资源,具体为配置了2步RACH资源的MSGA资源;其中,可以包括RO和/或上行传输资源。
这里,上行传输资源可以为PUSCH资源。
再进一步地,上行传输资源,也就是PUSCH资源,可以为N套,其中,每一套PUSCH资源的TB size不同。
另外,PUSCH资源的映射关系可以为:
第一映射关系,包括:M套RO资源和N套PUSCH资源,可以一一映射,或者不一一映射,在前述实施例中已经描述,不再赘述;
和/或,第二映射关系,其中包含有一套RO资源,L个preamble(group)(前导码(组))和N套PUSCH资源的对应关系;L和N相同时,前导码(组)可以与PUSCH资源一一对应,L和N不同时,前导码和PUSCH可以不一一对应,前述实施例已经描述,不再赘述。
步骤42、所述终端设备处于非激活态的情况下,从所述多个可用资源中确定所述第一资源。
所述从所述多个可用资源中确定所述第一资源包括:将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
本示例中,所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源。
具体的,
所述终端设备处于非激活态的情况下,判断所述待传输数据的数据量是否不大于所述第一消息中配置的可用资源中的最大TB的大小。根据判断结果,可以存在以下两种处理:
第一种处理,
若所述待传输数据的数据量大于所述第一消息中配置的可用资源中的最大TB的大小,
则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据。
比如,如果所述待传输数据的数据量大于所述第一消息中配置的上行传输资源中的最大TB的大小,则触发RRC resume(RRC恢复)过程。
需要指出的是,在触发的RRC恢复过程中,终端设备传输RRCResumeRequest(RRC恢复请求)时不携带数据。
本处理中,终端设备可以触发恢复过程,发送RRC恢复请求之后进入连接态,发送待传输数据。
也就是说,如果当前配置的全部上行传输资源能够传输的数据量,均小于待传输数据的数据量,那么待传输数据无法通过步骤41中配置的任何一个资源进行传输,因此,可以通过触发RRC恢复过程,在进入连接态后进行待传输数据的传输。这里具体如何触发终端设备进入连接态、以及终端设备在连接态进行待传输数据的发送的处理,不再进行赘述。
第二种处理,
若所述待传输数据的数据量不大于所述第一消息中配置的可用资源中的最大TB的大小,
则所述终端设备将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
进一步地,如果所述待传输数据的数据量不大于所述第一消息中配置的上行传输资源中的最大TB的大小,则终端设备保持非激活态,从可用资源中选择第一资源。
所述将所述多个可用资源中,选择第一资源可以根据预设条件来选择,比如可以包括以下两种方式中之一:
一种方式、将PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源,确定为所述第一资源。
具体的,终端设备可以选择TB size不小于待传数据量的第一个可用资源作为第一资源,并使用对应的第一RO/第一preamble来传输MsgA。
需要理解的是,前述第一个可用资源,可以为选择时域位置与当前时刻最近的一个可用资源。
或者,另一种方式,将PUSCH资源不小于所述待传输数据的大小的多个可用资源中,PUSCH资源的TB size最小的可用资源确定为所述第一资源。
终端设备可以从可用资源中选择满足待传输数据的数据量的最小TB size的上行传输资源作为第一资源(第一PUSCH资源)。
第二种处理中,基于前述处理选取了第一资源之后,可以根据第一映射关系以及第二映射关系确定对应的第一RO资源和/或第一前导码,然后还可以包括:
步骤43、在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。
所述随机接入请求包括消息A msg A,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
所述终端设备利用所述第一RO资源和/或第一前导码,和所述第一资源,传输包含所述待传输数据的MSGA。具体的处理方式在前述实施例已经说明,这里不再赘述。
结合图5对本示例提供的方案进行说明,假设通过第一消息配置了三个上行传输资源,分别为PUSCH1、2、3;
在终端设备有待传输数据data1数据到达时,根据配置的上行传输资源判断存在PUSCH2为TB大小size大于data1的数据量(size)的可用上行传输资源,另外,PUSCH2为满足预设条件的可用资源,那么将PUSCH2作为第一资源,用来传输data1;
然后,终端设备又存在data2待传输数据时,此时第一消息配置的PUSCH1、2、3的TBS均小于data2的数据量,因此,终端设备不选择任何一个PUSCH资源进行data2的传输,而是进入连接态之后传输data2。
本示例前述的方案为通过第一资源向网络设备发送随机接入请求来进行的方案说明。
示例2、
本示例与示例1不同在于预设条件存在不同,具体的:
所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;
满足所述待传输数据的时延要求。
其中,满足待传输数据的时延要求可以与第一个条件结合使用,也可以与第二个条件结合使用。
本示例结合图6进行详细说明:
步骤61与步骤41相同,不再赘述。
步骤62、所述终端设备处于非激活态的情况下,将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小,并且满足预设条件的可用资源,确定为所述第一资源。
具体可以为:判断所述多个可用资源是否存在满足所述待传输数据的时延要求的可用资源;
若存在,则判断满足所述待传输数据的时延要求的可用资源中,PUSCH资源的TB size是否不小于所述待传输数据的大小。
需要指出的是,执行本步骤之前,终端设备还需要预先获取到针对所述待传输数据的时延要求。
关于该针对所述待传输数据的时延要求可以为处于非激活态的UE在发起小数据传输时,应用层将数据递交给接入层时同时指示该小数据的时延要求,即包延时预算(PDB,packet delay budget)。当然,所述时延要求还可以为预设的,这里不再穷举。
本步骤中,所述待传输数据的时延要求,可以理解为:待传输数据到达至发送时间之间的时长,或者可以理解为待传输数据需要在到达之后的指定时长之内发出,该指定时长即可以为所述时延要求。
本步骤中,终端设备按照所述待传输数据(或称为小数据)的时延要求,选出时延要求内可用的MsgA资源,或者这些可用MsgA资源的PUSCH TBS size信息,然后,终端设备再判断待传数据量是否不大于这些可用资源中的最大TB size。
具体的,所述终端设备处于非激活态的情况下,判断第一消息中配置的可用资源中是否存在满足所述待传输数据的时延要求的候选上行传输资源。
也就是说,终端设备的待传输数据到达之后,根据待传输数据的时延要求判断可用资源中是否存在满足时延要求(或在时延要求所对应的一段时长内)的资源。根据本判断结果,可以存在以下两个处理分支:
第一处理、
若不存在满足所述待传输数据的时延要求的可用资源,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据。关于进入连接态进行待传输数据的发送的处理与上述示例1中的描述相同,这里不再赘述。
第二处理、
若存在满足所述待传输数据的时延要求的可用资源,则判断所述待传输数据的数据量是否不大于满足所述待传输数据的时延要求的可用资源中的最大TB的大小。
也就是在存在满足时延要求的可用资源的情况下,进一步判断满足时延要求的可用资源中的PUSCH资源的TB大小是否均不大于待传输数据的数据量。
本处理中,根据判断结果存在以下两种情况:
第一种情况、
步骤63、若所述待传输数据的数据量大于所述满足时延要求的可用资源中的最大TB的大小,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理。关于终端设备进入连接态进行待传输数据的发送的处理与前述示例1相同,不再赘述。
第二种情况、
步骤64、若所述待传输数据的数据量不大于所述满足时延要求的可用资源中的最大TB的大小, 则所述终端设备从满足所述待传输数据的时延要求的可用资源中,选取第一资源。
也就是说,这种情况中,如果所述待传输数据的数据量不大于所述第一消息中配置的上行传输资源中的最大TB的大小,则终端设备保持非激活态,进一步的选取TB大小大于所述待传输数据的数据量的可用资源。
进一步地,结合预设条件,可以选取可用资源中的第一个可用资源;或,可用资源中传输块TB的大小为最小的上行传输资源。具体的处理与前述示例1相同,不再重复说明。
也就是,基于本示例选择得到的第一资源,为满足待传输数据的时延要求的可用资源中的PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
或者,基于本示例选择得到的第一资源,为为满足待传输数据的时延要求的可用资源中的、PUSCH资源不小于所述待传输数据的大小的多个可用资源中,PUSCH资源的TB size最小的可用资源。
这种情况下,选取了第一资源之后,可以根据第一映射关系以及第二映射关系确定对应的第一RO资源和/或第一前导码,然后还可以包括步骤65、所述终端设备在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。具体的处理与前述示例相同,不再赘述。
结合图7对本示例提供的方案进行说明,假设通过第一消息配置了三个上行传输资源;
在终端设备有待传输数据data1数据到达时,根据data1对应的时延要求从配置的上行传输资源中选取满足所述data1的时延要求的候选上行传输资源,图中分别为PUSCH1、2、3;
然后,判断待传输数据data1的数据量(size)是否不大于候选上行传输资源的最大TBS(TB大小);假设PUSCH1、2、3对应的TB大小(size)分别表示为TBS1、2、3,经过这里的判断之后,可以确定data1数据量(size)大于TBS1,并且小于TBS2和TBS3;
那么可用资源为PUSCH2、3;再根据预设条件选择PUSCH2、3中TBS最小的一个作为第一资源,也就是选择满足时延要求的以及data数据量要求的最小的PUSCH3作为第一资源,通过PUSCH3传输data1。
本示例中选择资源除了上述流程对应的方式之外,还可以包括另外的处理方式,结合以下进行说明:
所述终端设备处于非激活态的情况下,判断所述待传输数据的数据量是否不大于所述第一消息中配置的可用资源中的最大TB的大小。
若所述待传输数据的数据量不大于所述可用资源中的最大TB的大小,
则所述终端设备从所述可用资源中,选取TB大小不小于所述待传输数据的数据量的、并且满足待传输数据的时延要求的可用资源,从这部分选取的可用资源中,再选取第一个可用资源作为第一资源,或者从这部分选择的可用资源中再选择TB大小最小的可用资源作为第一资源。
这里,还可以包括,如果没有满足待传输数据的时延要求的上行传输资源,那么所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据。
示例3、
本示例与示例1不同在于,本示例中,在确定第一资源的时候,增加预设条件,具体的:
所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;
与接入层AS配置参数匹配。
本示例,结合图8进行说明,可以包括以下步骤:
步骤81与步骤41相同,不再赘述。
然后,所述终端设备将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
具体的,可以为步骤82、处于非激活态的情况下,根据所述待传输数据对应的接入层(AS,Access Stotum)配置参数、以及所述待传输数据的数据量,从可用资源中确定所述第一资源。
处于非激活态的终端设备在发起小数据传输时,根据小数据对应的AS层(接入层)配置参数,以及待传数据量的大小,决定至少一个可用的MSGA资源配置。
这里,所述AS配置参数,包括以下至少之一:
所述待传输数据对应的逻辑信道;
所述待传输数据能够使用的MSGA资源。
也就是,该AS层配置参数可以是对应该小数据的逻辑信道;又或者,也可以是一个专有的配置信息,指示该小数据能在那些MSGA资源上传输,具体的可以为在哪些MSGA中的哪些上行传输资源上传输。
所述AS配置参数可以为预配置的;比如,可以为上一次终端设备与网络设备之间的连接释放的时候,网络设备(比如基站)配置给终端设备。
进一步地,所述待传输数据对应的逻辑信道与上行传输资源之间具备第三映射关系;和/或,所述待传输数据能够使用的MSGA资源中包含至少一个上行传输资源。
具体来说,可以包括:
判断第一消息配置的可用资源中是否存在与AS配置参数对应的可用资源,若不存在,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理。关于终端设备进入连接态进行待传输数据的发送的处理与前述示例1相同,不再赘述;
若存在,可以进一步判断与AS配置参数对应的可用资源的最大TB的大小是否不小于待传输数据的数据量,若小于,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,结束处理;
若不小于,则从与AS配置参数对应的可用资源中选择TB大于所述待传输数据量的可用资源。
又或者,本步骤进行可用资源的选择中,可以包括:
判断第一消息配置的可用资源的最大TB的大小是否不小于待传输数据的数据量的上行传输资源;
若小于,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,结束处理;
若不小于,则从可用资源中选取TB不小于待传输数据的数据量的可用资源,并判断选取的TB不小于待传输数据的数据量的可用资源中是否存在与AS配置参数对应的可用资源;
若不存在,所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理;
若存在,则从与AS配置参数对应的可用资源中选取第一个可用资源、或最小的可用资源作为第一资源,具体说明与前述示例相同,这里不再赘述。
进一步地,上述与AS配置参数对应的可用资源,可以为根据前述第三映射关系,判断是否存在与待传输数据对应的逻辑信道所匹配的上行传输资源;又或者,根据AS配置参数中的所述待传输数据能够使用的MSGA资源中包含至少一个上行传输资源进行确定。
步骤83、在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。具体的处理与前述示例相同,不再赘述。
还需要理解的是,上述示例2、3可以结合使用,又或者,上述示例1、2、3均可以单独使用。也就是可以理解为前述预设条件可以全部结合使用,预设条件包括:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;
满足所述待传输数据的时延要求;
与接入层AS配置参数匹配。
如果示例2、3结合使用,举例来说:在确定资源的时候,可以结合待传输数据对应的时延要求、AS配置参数、以及待传输数据的数据量共同进行判断。
具体来说,可以先判断第一消息配置的上行传输资源中是否存在满足时延要求的第一组上行传输资源,如果不存在,则进入连接态进行待传输数发送;
若存在,则判断第一组上行传输资源中是否存在AS配置参数匹配的第二组上行传输资源,若不存在,则进入连接态进行待传输数发送;
若存在,则判断第二组上行传输资源中的最大TB是否不小于待传输数据的数据量,若小于,则进入连接态进行待传输数发送;否则,从第二组上行传输资源中选择TB不小于待传输数据的数据量的可用资源。
进而,选择第一个可以资源作为第一资源,或选择TB大小最小的可用资源作为第一资源。
又或者,可以先判断第一消息配置的上行传输资源中是否存在AS配置参数匹配的第三组上行 传输资源,如果不存在,则进入连接态进行待传输数发送;
若存在,则判断第三组上行传输资源中是否存在满足时延要求的第四组上行传输资源,若不存在,则进入连接态进行待传输数发送;
若存在,则判断第四组上行传输资源中的最大TB是否不小于待传输数据的数据量,若小于,则进入连接态进行待传输数发送;否则,从第二组上行传输资源中选择TB不小于待传输数据的数据量的可用资源。
进而,选择第一个可以资源作为第一资源,或选择TB大小最小的可用资源作为第一资源。
再或者,可以先判断第一消息配置的上行传输资源最大TB是否不小于待传输数据的数据量,若小于,则进入连接态进行待传输数发送;
否则,从第一消息配置的上行传输资源中选择TB不小于待传输数据的数据量的第五组上行传输资源;
判断第五组上行传输资源中是否存在AS配置参数匹配的第六组上行传输资源,如果不存在,则进入连接态进行待传输数发送;
若存在,则判断第六组上行传输资源中是否存在满足时延要求的上行传输资源,若不存在,则进入连接态进行待传输数发送;若存在,则将满足时延要求的上行传输资源作为可用资源。进而,选择第一个可以资源作为第一资源,或选择TB大小最小的可用资源作为第一资源。
需要理解的是,上述仅为示例,这里不对处理顺序进行穷举,总之最终选取满足预设条件的第一资源,即在本实施例的保护范围内。
在针对CG的传输的处理中,如何选择第一资源的处理与前述示例1-3相同,不同之处仅在于第一消息的配置方式的不同,在前述实施例已经提供说明,这里不再赘述;另外,根据选择出来的第一资源进行待传输数据的发送也与前述示例1-3不同,CG传输的场景中,直接根据选择出来的第一资源进行待传输数据的传输即可,不存在RO和/或Preamble的选择的处理。
可见,通过采用上述方案,就能够从可用资源中,选取第一资源进行待传输数据的传输。上述方案尤其适用与两步随机接入进行小数据传输的处理中,提供了从可用资源中选择最符合当前需要的上行传输资源,并且还提供了存在多种可用资源的情况下进行资源选取的方案。
另外,上述实施例中提出了选择第一个满足数据量要求的PUSCH的方案,实现较为简单;还进一步提供按照时延要求选择满足数据量要求的最小TBS的PUSCH资源的方式,如此进一步可以节省网络资源,并且有利于终端节能。
本发明实施例提供一种终端设备,如图9所示,包括:
第一通信单元91,处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
相应的,在网络设备侧接收终端设备发来的待传输数据,一种网络设备,如图10所示,包括:
第二通信单元1001,在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
本实施例中,所述待传输数据可以为小数据(Small Data)和/或连接请求数据。
所述网络设备可以为网络侧的基站,比如eNB、gNB等等。
在执行本实施例提供的上述方案之前,终端设备的第一通信单元91还可以接收配置信息;也就是网络设备的第二通信单元1001可以为终端设备进行配置。
所述第一消息用于指示所述多个可用资源。
所述多个可用资源中,每个可用资源包括一个上行传输资源,具体的,所述多个可用资源中每个可用资源包括一物理上行共享信道(PUSCH,Physical Uplink Share CHannel)资源。
所述第一资源包括第一PUSCH资源。并且,所述第一PUSCH资源的TB size大小不小于所述待传输数据的大小。
也就是说,第一资源所包含的第一PUSCH资源,为传输块大小(TB Size)大于所述待传输数据的大小的资源。
在一种情况下,
所述第一消息为系统消息。比如,可以通过MIB(主信息块)和/或系统信息块SIB携带,这里不做穷举。
终端设备的第一通信单元91在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。相应的,网络设备的第二通信单元1001在第一资源上,接收终端设备发送的 随机接入请求,所述随机接入请求包括待传输数据。
所述随机接入请求包括消息A msg A;
也就是这种情况中,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源;
所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
具体来说,MSGA由前导码preamble以及所述待传输数据组成。其中,所述待传输数据具体可以包括前述应用层数据,也就是小数据,和/或连接请求信息,比如无线资源控制(RRC,Radio Resource Control)恢复请求(Resume Request)。
这种情况下,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
所述PUSCH资源与前导码之间存在第二映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
另一种情况中,所述第一消息为预配置授权消息。
所述预配置授权消息为无线资源控制RRC信令。
这种情况下,所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
本情况与前一种情况不同之处在于,本情况针对的场景为配置授权(CG,Configured Grant)场景。本情况主要适用于上述第一类配置授权(configured grant Type 1)的物理上行共享信道(PUSCH)传输的场景中。也就是说,第一消息为用于CG资源配置的RRC信令,其中,可以包括的内容可以有多个可用资源;其中,每个可用资源包括一个上行传输资源,具体为每一个可用资源包括一物理上行共享信道PUSCH资源。
进一步地,所述终端设备还包括:第一处理单元92维护一有效定时提前TA值,所述有效TA值用于所述终端设备进行上行同步。也就是,一段时间内,终端设备的移动距离是有限的,可以将这段时间内的TA值默认是不变的以实现上行同步。
基于此,本实施例结合以下多个示例对如何确定第一资源进行说明:
示例1、
终端设备的第一通信单元91接收第一消息;
其中,所述第一消息为系统消息。
所述系统消息包括主信息块(MIB,Master Information Block)和/或系统信息块(SIB,System Information Block)。
在所述系统广播消息中配置了2步RACH资源,具体为配置了2步RACH资源的MSGA资源;其中,可以包括RO和/或上行传输资源。
这里,上行传输资源可以为PUSCH资源。
再进一步地,上行传输资源,也就是PUSCH资源,可以为N套,其中,每一套PUSCH资源的TB size不同。
另外,PUSCH资源的映射关系可以为:
第一映射关系,包括:M套RO资源和N套PUSCH资源,可以一一映射,或者不一一映射,在前述实施例中已经描述,不再赘述;
和/或,第二映射关系,其中包含有一套RO资源,L个preamble(group)(前导码(组))和N套PUSCH资源的对应关系;L和N相同时,前导码(组)可以与PUSCH资源一一对应,L和N不同时,前导码和PUSCH可以不一一对应,前述实施例已经描述,不再赘述。
处于非激活态的情况下,终端设备的第一处理单元92从所述多个可用资源中确定所述第一资源。
所述终端设备的第一处理单元92将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
本示例中,所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源。
终端设备的第一通信单元91在第一资源上,向所述网络设备发送随机接入请求,所述随机接入 请求包括待传输数据。
所述随机接入请求包括消息A msg A,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
示例2、
本示例与示例1不同在于预设条件存在不同,具体的:
所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;
满足所述待传输数据的时延要求。
其中,满足待传输数据的时延要求可以与第一个条件结合使用,也可以与第二个条件结合使用。
本示例结合图6进行详细说明:
处于非激活态的情况下,终端设备的第一处理单元92将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小,并且满足预设条件的可用资源,确定为所述第一资源。
具体可以为:判断所述多个可用资源是否存在满足所述待传输数据的时延要求的可用资源;
若存在,则判断满足所述待传输数据的时延要求的可用资源中,PUSCH资源的TB size是否不小于所述待传输数据的大小。
需要指出的是,执行本步骤之前,终端设备还需要预先获取到针对所述待传输数据的时延要求。
关于该针对所述待传输数据的时延要求可以为处于非激活态的UE在发起小数据传输时,应用层将数据递交给接入层时同时指示该小数据的时延要求,即包延时预算(PDB,packet delay budget)。当然,所述时延要求还可以为预设的,这里不再穷举。
本步骤中,所述待传输数据的时延要求,可以理解为:待传输数据到达至发送时间之间的时长,或者可以理解为待传输数据需要在到达之后的指定时长之内发出,该指定时长即可以为所述时延要求。
本步骤中,终端设备按照所述待传输数据(或称为小数据)的时延要求,选出时延要求内可用的MsgA资源,或者这些可用MsgA资源的PUSCH TBS size信息,然后,终端设备再判断待传数据量是否不大于这些可用资源中的最大TB size。
具体的,所述终端设备处于非激活态的情况下,判断第一消息中配置的可用资源中是否存在满足所述待传输数据的时延要求的候选上行传输资源。
也就是说,终端设备的待传输数据到达之后,根据待传输数据的时延要求判断可用资源中是否存在满足时延要求(或在时延要求所对应的一段时长内)的资源。根据本判断结果,可以存在以下两个处理分支:
第一处理、
若不存在满足所述待传输数据的时延要求的可用资源,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据。关于进入连接态进行待传输数据的发送的处理与上述示例1中的描述相同,这里不再赘述。
第二处理、
若存在满足所述待传输数据的时延要求的可用资源,则判断所述待传输数据的数据量是否不大于满足所述待传输数据的时延要求的可用资源中的最大TB的大小。
也就是在存在满足时延要求的可用资源的情况下,进一步判断满足时延要求的可用资源中的PUSCH资源的TB大小是否均不大于待传输数据的数据量。
本处理中,根据判断结果存在以下两种情况:
第一种情况、
终端设备的第一处理单元92若所述待传输数据的数据量大于所述满足时延要求的可用资源中的最大TB的大小,则触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理。不再赘述。
第二种情况、
终端设备的第一处理单元92若所述待传输数据的数据量不大于所述满足时延要求的可用资源中的最大TB的大小,则从满足所述待传输数据的时延要求的可用资源中,选取第一资源。
也就是说,这种情况中,如果所述待传输数据的数据量不大于所述第一消息中配置的上行传输资源中的最大TB的大小,则终端设备保持非激活态,进一步的选取TB大小大于所述待传输数据的数据量的可用资源。
进一步地,结合预设条件,可以选取可用资源中的第一个可用资源;或,可用资源中传输块TB的大小为最小的上行传输资源。具体的处理与前述示例1相同,不再重复说明。
示例3、
本示例与示例1不同在于,本示例中,在确定第一资源的时候,增加预设条件,具体的:
所述预设条件包括以下至少之一:
所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;
所述多个可用资源中所述PUSCH资源不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;
与接入层AS配置参数匹配。
终端设备的第一处理单元92将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
具体的,处于非激活态的情况下,根据所述待传输数据对应的接入层(AS,Access Stotum)配置参数、以及所述待传输数据的数据量,从可用资源中确定所述第一资源。
处于非激活态的终端设备在发起小数据传输时,根据小数据对应的AS层(接入层)配置参数,以及待传数据量的大小,决定至少一个可用的MSGA资源配置。
这里,所述AS配置参数,包括以下至少之一:
所述待传输数据对应的逻辑信道;
所述待传输数据能够使用的MSGA资源。
也就是,该AS层配置参数可以是对应该小数据的逻辑信道;又或者,也可以是一个专有的配置信息,指示该小数据能在那些MSGA资源上传输,具体的可以为在哪些MSGA中的哪些上行传输资源上传输。
所述AS配置参数可以为预配置的;比如,可以为上一次终端设备与网络设备之间的连接释放的时候,网络设备(比如基站)配置给终端设备。
进一步地,所述待传输数据对应的逻辑信道与上行传输资源之间具备第三映射关系;和/或,所述待传输数据能够使用的MSGA资源中包含至少一个上行传输资源。
具体来说,可以包括:
判断第一消息配置的可用资源中是否存在与AS配置参数对应的可用资源,若不存在,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理。关于终端设备进入连接态进行待传输数据的发送的处理与前述示例1相同,不再赘述;
若存在,可以进一步判断与AS配置参数对应的可用资源的最大TB的大小是否不小于待传输数据的数据量,若小于,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,结束处理;
若不小于,则从与AS配置参数对应的可用资源中选择TB大于所述待传输数据量的可用资源。
又或者,本步骤进行可用资源的选择中,可以包括:
判断第一消息配置的可用资源的最大TB的大小是否不小于待传输数据的数据量的上行传输资源;
若小于,则所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,结束处理;
若不小于,则从可用资源中选取TB不小于待传输数据的数据量的可用资源,并判断选取的TB不小于待传输数据的数据量的可用资源中是否存在与AS配置参数对应的可用资源;
若不存在,所述终端设备触发无线资源控制RRC恢复过程,进入连接态后传输所述待传输数据,然后结束处理;
若存在,则从与AS配置参数对应的可用资源中选取第一个可用资源、或最小的可用资源作为第一资源,具体说明与前述示例相同,这里不再赘述。
进一步地,上述与AS配置参数对应的可用资源,可以为根据前述第三映射关系,判断是否存在与待传输数据对应的逻辑信道所匹配的上行传输资源;又或者,根据AS配置参数中的所述待传输数据能够使用的MSGA资源中包含至少一个上行传输资源进行确定。
还需要理解的是,上述示例2、3可以结合使用,又或者,上述示例1、2、3均可以单独使用。不再赘述。
在针对CG的传输的处理中,如何选择第一资源的处理与前述示例1-3相同,不同之处仅在于第一消息的配置方式的不同,在前述实施例已经提供说明,这里不再赘述;另外,根据选择出来的第一资源进行待传输数据的发送也与前述示例1-3不同,CG传输的场景中,直接根据选择出来的第一资源进行待传输数据的传输即可,不存在RO和/或Preamble的选择的处理。
可见,通过采用上述方案,就能够从可用资源中,选取第一资源进行待传输数据的传输。上述方案尤其适用与两步随机接入进行小数据传输的处理中,提供了从可用资源中选择最符合当前需要的上行传输资源,并且还提供了存在多种可用资源的情况下进行资源选取的方案。
另外,上述实施例中提出了选择第一个满足数据量要求的PUSCH的方案,实现较为简单;还进一步提供按照时延要求选择满足数据量要求的最小TBS的PUSCH资源的方式,如此进一步可以节省网络资源,并且有利于终端节能。
图11是本发明实施例提供的一种通信设备1400示意性结构图,本实施例中的通信设备可以具体为前述实施例中的终端设备或网络设备。图11所示的通信设备1400包括处理器1410,处理器1410可以从存储器中调用并运行计算机程序,以实现本发明实施例中的方法。
可选地,图11所示,通信设备1400还可以包括存储器1420。其中,处理器1410可以从存储器1420中调用并运行计算机程序,以实现本发明实施例中的方法。
其中,存储器1420可以是独立于处理器1410的一个单独的器件,也可以集成在处理器1410中。
可选地,如图11所示,通信设备1400还可以包括收发器1430,处理器1410可以控制该收发器1430与其他设备进行通信,具体地,可以向其他设备发送信息或数据,或接收其他设备发送的信息或数据。
其中,收发器1430可以包括发射机和接收机。收发器1430还可以进一步包括天线,天线的数量可以为一个或多个。
可选地,该通信设备1400具体可为本发明实施例的终端设备或网络设备实现的相应流程,为了简洁,在此不再赘述。
图12是本发明实施例的芯片的示意性结构图。图12所示的芯片1500包括处理器1510,处理器1510可以从存储器中调用并运行计算机程序,以实现本发明实施例中的方法。
可选地,如图12所示,芯片1500还可以包括存储器1520。其中,处理器1510可以从存储器1520中调用并运行计算机程序,以实现本发明实施例中的方法。
其中,存储器1520可以是独立于处理器1510的一个单独的器件,也可以集成在处理器1510中。
可选地,该芯片1500还可以包括输入接口1530。其中,处理器1510可以控制该输入接口1530与其他设备或芯片进行通信,具体地,可以获取其他设备或芯片发送的信息或数据。
可选地,该芯片1500还可以包括输出接口1540。其中,处理器1510可以控制该输出接口1540与其他设备或芯片进行通信,具体地,可以向其他设备或芯片输出信息或数据。
可选地,该芯片可应用于本发明实施例中的终端设备或网络设备实现的相应流程,为了简洁,在此不再赘述。
应理解,本发明实施例提到的芯片还可以称为系统级芯片,系统芯片,芯片系统或片上系统芯片等。
应理解,本发明实施例的处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。
可以理解,本发明实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,上述存储器为示例性但不是限制性说明,例如,本发明实施例中的存储器还可以是静态随机存取存储器(static RAM,SRAM)、动态随机存取存储器(dynamic RAM,DRAM)、同步动态随机存取存储器(synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(double data rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(synch link DRAM,SLDRAM)以及直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)等等。也就是说,本发明实施例中的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
图13是本申请实施例提供的一种通信系统1600的示意性框图。如图13所示,该通信系统1600包括网络设备1620和终端设备1610。
其中,该网络设备1620可以用于实现上述方法中由通信设备实现的相应的功能,以及该终端设备1610可以用于实现上述方法中由终端实现的相应的功能为了简洁,在此不再赘述。
本发明实施例还提供了一种计算机可读存储介质,用于存储计算机程序。
可选的,该计算机可读存储介质可应用于本发明实施例中的网络设备或卫星或终端设备,并且该计算机程序使得计算机执行本发明实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
本发明实施例还提供了一种计算机程序产品,包括计算机程序指令。
可选的,该计算机程序产品可应用于本发明实施例中的网络设备或卫星或终端设备,并且该计算机程序指令使得计算机执行本发明实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
本发明实施例还提供了一种计算机程序。
可选的,该计算机程序可应用于本发明实施例中的网络设备或卫星或终端设备,当该计算机程序在计算机上运行时,使得计算机执行本发明实施例的各个方法中由网络设备实现的相应流程,为了简洁,在此不再赘述。
本领域普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领域的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本发明所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(Read-Only Memory,)ROM、随机存取存储器(Random Access Memory,RAM)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应所述以权利要求的保护范围为准。
Claims (75)
- 一种数据传输方法,其特征在于,包括:终端设备处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
- 根据权利要求1所述的方法,其特征在于,所述方法还包括:接收所述网络设备的第一消息,所述第一消息用于指示所述多个可用资源。
- 根据权利要求2所述的方法,其特征在于,所述多个可用资源中,每个可用资源包括一物理上行共享信道PUSCH资源。
- 根据权利要求3所述的方法,其特征在于,所述第一资源包括第一物理上行共享信道PUSCH资源。
- 根据权利要求4所述的方法,其特征在于,所述第一PUSCH资源的传输块TB大小size不小于所述待传输数据的大小。
- 根据权利要求5所述的方法,其特征在于,所述第一消息为系统消息。
- 根据权利要求6所述的方法,其特征在于,所述系统消息包括主信息块MIB和/或系统信息块SIB。
- 根据权利要求5或6所述的方法,其特征在于,所述在第一资源上向网络设备发送待传输数据,包括:在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。
- 根据权利要求8所述的方法,其特征在于,所述随机接入请求包括消息A msg A,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求9所述的方法,其特征在于,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
- 根据权利要求10所述的方法,其特征在于,所述PUSCH资源与前导码之间存在第二映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
- 根据权利要求5所述的方法,其特征在于,所述第一消息为预配置授权消息。
- 根据权利要求12所述的方法,其特征在于,所述预配置授权消息为无线资源控制RRC信令。
- 根据权利要求12或13所述的方法,其特征在于,所述在第一资源上,向网络侧发送待传输数据,包括:所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求12-14任一项所述的方法,其特征在于,所述在第一资源上向网络设备发送待传输数据之前,所述方法还包括:所述终端设备维护一有效定时提前TA值,所述有效TA值用于所述终端设备进行上行同步。
- 根据权利要求5-13中任一项所述的方法,其特征在于,所述方法还包括:从所述多个可用资源中确定所述第一资源。
- 根据权利要求16所述的方法,其特征在于,所述从所述多个可用资源中确定所述第一资源包括:将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
- 根据权利要求17所述的方法,其特征在于,所述预设条件包括以下至少之一:所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;满足所述待传输数据的时延要求;与接入层AS配置参数匹配。
- 根据权利要求1-18任一项所述的方法,其特征在于,所述待传输数据为小数据small data和/或连接请求数据。
- 一种数据传输方法,其特征在于,包括:网络设备在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
- 根据权利要求20所述的方法,其特征在于,所述方法还包括:网络设备向终端设备发送第一消息,所述第一消息用于指示所述多个可用资源。
- 根据权利要求21所述的方法,其特征在于,所述多个可用资源中,每个可用资源包括一物理上行共享信道PUSCH资源。
- 根据权利要求22所述的方法,其特征在于,所述第一资源包括第一物理上行共享信道PUSCH资源。
- 根据权利要求23所述的方法,其特征在于,所述第一PUSCH资源的传输块TB大小size不小于所述待传输数据的大小。
- 根据权利要求24所述的方法,其特征在于,所述第一消息为系统消息。
- 根据权利要求25所述的方法,其特征在于,所述系统消息包括主信息块MIB和/或系统信息块SIB。
- 根据权利要求25或26所述的方法,其特征在于,所述网络设备在第一资源上接收待传输数据,包括:在第一资源上,接收终端设备发送的随机接入请求,所述随机接入请求包括待传输数据。
- 根据权利要求27所述的方法,其特征在于,所述随机接入请求包括消息A msg A,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求28所述的方法,其特征在于,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
- 根据权利要求29所述的方法,其特征在于,所述PUSCH资源与前导码之间存在第二映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
- 根据权利要求24所述的方法,其特征在于,所述第一消息为预配置授权消息。
- 根据权利要求31所述的方法,其特征在于,所述预配置授权消息为无线资源控制RRC信令。
- 根据权利要求31或32所述的方法,其特征在于,所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求20-33任一项所述的方法,其特征在于,所述待传输数据为小数据small data和/或连接请求数据。
- 一种终端设备,其特征在于,包括:第一通信单元,处于未激活状态下,在第一资源上向网络设备发送待传输数据;其中,所述第一资源为多个可用资源中之一。
- 根据权利要求35所述的终端设备,其特征在于,所述第一通信单元,接收所述网络设备的第一消息,所述第一消息用于指示所述多个可用资源。
- 根据权利要求36所述的终端设备,其特征在于,所述多个可用资源中,每个可用资源包括一物理上行共享信道PUSCH资源。
- 根据权利要求37所述的终端设备,其特征在于,所述第一资源包括第一物理上行共享信道PUSCH资源。
- 根据权利要求38所述的终端设备,其特征在于,所述第一PUSCH资源的传输块TB大小size不小于所述待传输数据的大小。
- 根据权利要求39所述的终端设备,其特征在于,所述第一消息为系统消息。
- 根据权利要求40所述的终端设备,其特征在于,所述系统消息包括主信息块MIB和/或系统信息块SIB。
- 根据权利要求39或40所述的终端设备,其特征在于,所述第一通信单元,在第一资源上,向所述网络设备发送随机接入请求,所述随机接入请求包括待传输数据。
- 根据权利要求42所述的终端设备,其特征在于,所述随机接入请求包括消息A msg A,所 述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求43所述的终端设备,其特征在于,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
- 根据权利要求44所述的终端设备,其特征在于,所述PUSCH资源与前导码之间存在第二映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
- 根据权利要求39所述的终端设备,其特征在于,所述第一消息为预配置授权消息。
- 根据权利要求46所述的终端设备,其特征在于,所述预配置授权消息为无线资源控制RRC信令。
- 根据权利要求46或47所述的终端设备,其特征在于,所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求46-48任一项所述的终端设备,其特征在于,所述终端设备还包括:第一处理单元,维护一有效定时提前TA值,所述有效TA值用于所述终端设备进行上行同步。
- 根据权利要求39-47中任一项所述的终端设备,其特征在于,所述终端设备还包括:第一处理单元,从所述多个可用资源中确定所述第一资源。
- 根据权利要求50所述的终端设备,其特征在于,所述第一处理单元,将所述多个可用资源中,所述PUSCH资源的TB size不小于所述待传输数据的大小、并满足预设条件的可用资源,确定为所述第一资源。
- 根据权利要求51所述的终端设备,其特征在于,所述预设条件包括以下至少之一:所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的第一个可用资源;所述多个可用资源中所述PUSCH资源的TB size不小于所述待传输数据的大小的多个可用资源中,所述PUSCH资源的TB size最小的可用资源;满足所述待传输数据的时延要求;与接入层AS配置参数匹配。
- 根据权利要求35-52任一项所述的终端设备,其特征在于,所述待传输数据为小数据small data和/或连接请求数据。
- 一种网络设备,其特征在于,包括:第二通信单元,在第一资源上接收待传输数据;其中,所述第一资源为多个可用资源中之一。
- 根据权利要求54所述的网络设备,其特征在于,所述第二通信单元,向终端设备发送第一消息,所述第一消息用于指示所述多个可用资源。
- 根据权利要求55所述的网络设备,其特征在于,所述多个可用资源中,每个可用资源包括一物理上行共享信道PUSCH资源。
- 根据权利要求56所述的网络设备,其特征在于,所述第一资源包括第一物理上行共享信道PUSCH资源。
- 根据权利要求57所述的网络设备,其特征在于,所述第一PUSCH资源的传输块TB大小size不小于所述待传输数据的大小。
- 根据权利要求58所述的网络设备,其特征在于,所述第一消息为系统消息。
- 根据权利要求59所述的网络设备,其特征在于,所述系统消息包括主信息块MIB和/或系统信息块SIB。
- 根据权利要求59或60所述的网络设备,其特征在于,所述第二通信单元,在第一资源上,接收终端设备发送的随机接入请求,所述随机接入请求包括待传输数据。
- 根据权利要求61所述的网络设备,其特征在于,所述随机接入请求包括消息A msg A,所述第一资源包括第一随机接入时机RO资源和所述第一PUSCH资源,所述第一RO资源用于传输所述msg A的第一前导码preamble,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求62所述的网络设备,其特征在于,所述多个可用资源中,每个可用资源包括一RO资源和一PUSCH资源,所述PUSCH资源与所述RO资源之间存在第一映射关系;其中,基于所述第一映射关系确定所述第一PUSCH资源对应的所述第一RO资源。
- 根据权利要求63所述的网络设备,其特征在于,所述PUSCH资源与前导码之间存在第二 映射关系;其中,基于第二映射关系确定所述第一PUSCH资源对应的所述第一前导码。
- 根据权利要求58所述的网络设备,其特征在于,所述第一消息为预配置授权消息。
- 根据权利要求65所述的网络设备,其特征在于,所述预配置授权消息为无线资源控制RRC信令。
- 根据权利要求65或66所述的网络设备,其特征在于,所述第一资源为所述第一PUSCH资源,所述第一PUSCH资源用于传输所述待传输数据。
- 根据权利要求54-67任一项所述的网络设备,其特征在于,所述待传输数据为小数据small data和/或连接请求数据。
- 一种终端设备,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,其中,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求1-19任一项所述方法的步骤。
- 一种网络设备,包括:处理器和用于存储能够在处理器上运行的计算机程序的存储器,其中,该存储器用于存储计算机程序,所述处理器用于调用并运行所述存储器中存储的计算机程序,执行如权利要求20-34任一项所述方法的步骤。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求1-19中任一项所述的方法。
- 一种芯片,包括:处理器,用于从存储器中调用并运行计算机程序,使得安装有所述芯片的设备执行如权利要求20-34中任一项所述的方法。
- 一种计算机可读存储介质,所述计算机可读存储介质用于存储计算机程序,所述计算机程序使得计算机执行如权利要求1-34任一项所述方法的步骤。
- 一种计算机程序产品,包括计算机程序指令,该计算机程序指令使得计算机执行如权利要求1-34中任一项所述的方法。
- 一种计算机程序,所述计算机程序使得计算机执行如权利要求1-34中任一项所述的方法。
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