Data transmission method, network equipment and terminal equipment

A data transmission method, technology of network equipment, applied in the field of network equipment and terminal equipment, data transmission method, can solve problems such as failure to meet URLLC reliability index

Active Publication Date: 2020-12-01
HUAWEI TECH CO LTD
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AI-Extracted Technical Summary

Problems solved by technology

If URLLC continues to use the LTE data transmission mechanism, since the index of PDCCH or ePDC...
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Method used

[0178] In the data transmission method provided by the embodiment of the present invention, the network device configures N groups of scheduling information according to the requirements of the terminal device group, configures at least one downlink data according to the M groups of scheduling information in the N groups of scheduling information, and transmits at the first transmission time The unit sends the first downlink data to the first terminal device; correspondingly, the first terminal device determines N groups of scheduling information, and detects the first downlink data according to the N groups of scheduling information in the first transmission time unit. In this process, since the first downlink data includes at least one downlink data, and the at least one downlink data carries the same information, the first terminal device only needs to successfully detect one downlink data in the first downlink data, which means that it has successfully received the downlink data. The first downlink data can be successfully transmitted through mult...
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Abstract

An embodiment of the present invention provides a data transmission method, network equipment, and terminal equipment. The network equipment configures N groups of scheduling information according to the requirements of the terminal equipment group, configures at least one downlink data according to M groups of scheduling information in the N groups of scheduling information, and configures at least one downlink data in the N groups of scheduling information. The first transmission time unit sends the first downlink data to the first terminal device; correspondingly, the first terminal device determines N groups of scheduling information, and detects the first downlink data according to the N groups of scheduling information in the first transmission time unit. In this process, the purpose of successfully transmitting the first downlink data can be achieved through multiple transmissions and one successful detection, and high reliability data transmission is realized. At the same time, the low reliability problem of PDCCH dynamic scheduling is avoided, and a large amount of control overhead is not introduced, and link adaptation can be obtained.

Application Domain

Wireless network protocolsTransmission rate adaptation

Technology Topic

Data transmissionEngineering +5

Image

  • Data transmission method, network equipment and terminal equipment
  • Data transmission method, network equipment and terminal equipment
  • Data transmission method, network equipment and terminal equipment

Examples

  • Experimental program(1)

Example Embodiment

[0146] The description and claims of the present invention and the terms "first", "second", "third", "fourth", etc. in the above drawings are used to distinguish similar objects without having to use Describe a specific order or intern order. It should be understood that the data such as use can be interchangeable in appropriate, so that the embodiments of the invention described herein can be implemented, for example, in order than those except those illustrated or described herein. Moreover, the terms "including" and "have" and any variation, it is intended that it is intended that it is not included in the process, method, method, system, product, or device that covers his inclusion, such as a series of steps or units. These steps or units may include other steps or units that are not clearly listed or for these processes, methods, products, or equipment.
[0147] When carrying ePDCCH DCI, misdetection probability indicators present, LTE communication using R8PDCCH version and version R11 is defined 10 -2. The reliability of the proposed index URLLC of 5G reach 1-10 -5. Obviously, if it continues to adopt LTE data transfer mechanism is far unable to reach a reliability index URLLC.
[0148] In view of this, embodiments provide a data transmission method, a network device and terminal equipment of the present invention, to achieve high reliability of data transmission.
[0149] The data transmission method described herein may be used for various wireless communication systems there are various types of terminals, the wireless communication system a higher reliability of data transmission up to 1-10 e.g. -5. The wireless communication system, for example, Global System for Mobile (Global System for Mobile communications, GSM), CDMA (Code DivisionMultiple Access, CDMA) systems, time division multiple access (Time Division Multiple Access, TDMA) system, a Wideband Code Division Multiple Access (Wideband Code division multiple Access Wireless, WCDMA), frequency division multiple access (frequency division multiple addressing, FDMA) systems, orthogonal frequency division multiple access (OrthogonalFrequency-division multiple Access, OFDMA) systems, single carrier FDMA (SC-FDMA) system, general packet radio service (General packet radio service, GPRS) system, a long term evolution (long TermEvolution, LTE) system, E-UTRA system, 5G mobile communication system, and other such communication systems.
[0150] A terminal device involved in the embodiment of the present invention, for example, a wireless terminal device, the wireless terminal may refer to providing voice and / or communication of device data, having wireless connection capability, a handheld device, or connected to a wireless modem other processing equipment. The wireless terminal may be via a radio access network (e.g., RAN, Radio AccessNetwork) with one or more core networks of communication, the wireless terminal may be a mobile terminal such as a mobile phone (or "cellular" telephone) and a mobile terminal having computer, for example, may be a portable, pocket, handheld, computer-included, or car mobile device, which the radio access network and exchanges voice and / or data. For example, a personal communication service (Personal Communication Service, PCS) phone, a cordless telephone, a Session Initiation Protocol (SIP) phone, a wireless local loop (Wireless Local Loop, WLL) station, a personal digital assistant (Personal Digital Assistant, PDA) and other equipment . A wireless terminal can also be called a system, subscriber unit (Subscriber Unit), a subscriber station (SubscriberStation), the mobile station (Mobile Station), mobile stations (Mobile), a remote station (Remote Station), the remote terminal (Remote Terminal), access terminal (Access terminal), a user terminal (user terminal), user agent (user agent), user equipment (user device), or user equipment (user equipment), PUE, VUE and the like.
[0151] The present application relates to a network device may be a base station, an access point (Access Point, AP) and the like. Wherein, the base station may refer to an access network over the air interface, through one or more sectors communicating with wireless terminal devices. The base station can be used for the IP packet air frame will be received conversion as a router between the wireless terminal and the rest of the access network, wherein the rest of the access network may include an Internet Protocol (IP) network. The base station can also coordinate attribute management of the air interface. For example, the base station may be 5G base station (gNB, g-Node B), may be in LTE evolved base station (NodeB or eNB or e-NodeB, evolutional Node B), or even may be a GSM or CDMA base station (Base TransceiverStation, BTS) or WCDMA base station (NodeB), the present application is not limited.
[0152] Hereinafter, for the convenience of description clarity, in particular for the system architecture of an example of URLLC system 5G aspect of the invention is described in detail. In particular, see figure 1.
[0153] figure 1 The data transmission method of the present invention is applicable to a network architecture diagram. like figure 1 As shown, the network architecture, there are a plurality of terminal devices ( figure 1 Shows only one), establishing a wireless communication with the terminal apparatus connected to a network device group in each terminal device. Below, in figure 1 Data transmission method described in detail based on the embodiment according to the present embodiment of the invention. Specifically, see figure 2.
[0154] figure 2 FIG embodiment a signaling method of the present invention, a data transmission, comprising:
[0155] 101, network device configuration information group scheduling N, N is a positive integer.
[0156] Embodiments of the present invention, N arranged to group the scheduling information is a terminal device group, for example, arranged to use a set of terminal devices URLLC. In this step, for one terminal device group, the network device N sets of configuration information according to the scheduling requirements of the current terminal set, N is equal to 1 or greater than 1 N. Wherein the scheduling information comprises information RA and / or MCS information, any two N sets of scheduling information in the scheduling information is not the same. Thus, for the terminal devices having different channel quality, the network device may according to different downlink data transmissions the scheduling information. For example, N = 2, the two groups are not the same as the scheduling information, the scheduling means sets a channel indicated by the resource information are different from each other with MCS; or refers to a channel resource sets scheduling information and do not indicate the However, the same MCS same; or refers to two groups of the same channel resource scheduling information indicate MCS but different from each other.
[0157] Embodiment, the N sets of scheduling information over time for each transmission time unit of the embodiment of the present invention are effective; Alternatively, the N sets of scheduling information portion transmission time means a period of time is valid. The time period configured or pre-configured for the network device, which may be a finite period of time, for example 100ms; or may be infinitely long time. Transmission time unit may also be referred to as transmission time interval comprises a plurality of transmission time units within the same period of time the length of time of any two unit transmission time, or, including a plurality of transmission time units within the time of the end the length of the at least two transmission time unit is not the same.
[0158] 102, the network device according to the M groups of N sets of scheduling information in the scheduling information, the configuration of the first downlink data, the downlink data is at least a first, M is a positive integer less than or equal to N.
[0159] In this step, a first downlink data network device configuration can be achieved by two methods:
[0160] A method, M group scheduling information each set of scheduling information indicates a channel resource and / or the MCS, the M sets of scheduling information indicates the M channel resources, the M MCS and / or the M redundancy version (RV, redundancy version ), M groups of network devices according to the scheduling information in the scheduling information of each set, the configuration of the M downlink data, the downlink data comprises a first M downlink data, the same information data carried by the M downlink. Eg, M is equal to 5, N is equal to 5 or more. Incidentally, the same information is carried in the M downlink data may also be seen as a downlink data, the present invention is not limited. M downlink data carrying the same information, i.e. the original information data carried by the M-bit downlink same. For example, M downlink data are carried on M PDSCH, PDSCH then the original information of the M bits of the same carrier, but after the original information bits in a different MCS modulation coding will be different.
[0161] M any channel resource channel resources may be continuous or non-continuous frequency domain resource frequency domain resource, the present invention is not limited. Alternatively, the M channel resources are located in different frequency bands in the frequency domain, or that there is no mutual correlation between the M channel resources.
[0162] Optionally, M downlink data carrying the same information, and can be self-decodable, respectively. Thus, as long as the first terminal device is successfully detected a downlink data M downlink data comprises a first data in the downlink, even if the reception is successful. 0.1, then the data carried on the downlink channel resources M transmission error probability of assuming a block error rate on each downlink bearer data channel resource (BLER) of 10 -M. For example, M = 5, the first downlink data reliability reaches 1-10-5.
[0163] Method II, the scheduling information for any group of M group the scheduling information is denoted as i-th group the scheduling information, the scheduling information indicates the i-th group S i Channel resources, S i Th MCS and / or S i A RV. Where S i Is a positive integer, for example, S i = 5. In this case, the group scheduling information M i-th group the scheduling information, the network device configuration S i Downlink data, the downlink data comprises a first S i Downlink data, the S i Downlink data carrying the same information. If the individual channel resource scheduling information indicates and / or the same number of the MCS, the network device configuration M × S i Downlink data. Incidentally, different information M groups of M sets of downlink data corresponding to the scheduling information carried in the S i Downlink data information carried by the same, can be seen as a downlink data, and therefore, the network device configuration M × S i Downlink data, downlink data corresponding to the M, the present invention is not limited.
[0164] Optionally, S i Information carried in the same downlink data, and can be self-decodable, respectively. Thus, as long as the first terminal device is successfully detected data included in the first downlink S i When a downlink data in the downlink data, even if successfully received i-th group corresponding to the downlink data scheduling information.
[0165] S i A channel resource any channel resources may be continuous or non-continuous frequency domain resource frequency domain resource, the present invention is not limited. Optionally, S i Channel resources are located in different frequency bands in the frequency domain, or, S i No correlation between each other channel resources.
[0166] Optionally, S i Same information data carried by a first downlink and may each self-decodable. Thus, as long as the first terminal device is successfully detected data included in the first downlink S i When a downlink data in the downlink data, even if the downlink data successfully received the first i-th group corresponding to the scheduling information.
[0167] Optionally, in this step, it is just a first downlink data packet initially transmitted packet is not retransmitted packet. That is, the network device that the first terminal device always receives a first downlink data correctly. Because the first downlink data reliability 1-10 -5 Not necessary to support hybrid automatic repeat request (Hybrid Automatic Repeat Request, HARQ)
[0168] 103, the first network device transmits downlink data to the terminal device a first transmission in a first time unit.
[0169] After a first configured downlink data, the network device first terminal device transmits a first downlink data transmission within a first time unit. The first terminal device to the one terminal device is a terminal group.
[0170] 104, the first terminal determines scheduling information group N, where N is a positive integer.
[0171] Network device group may be N scheduling information through higher layer signaling or physical layer signaling indicates to the terminal device in the first terminal device group; Accordingly, N sets of the first terminal determines scheduling information configured network side device.
[0172] 105, a first terminal device a first downlink data at a first transmission time unit according to the N sets of scheduling information detection.
[0173] In this step, a first terminal unit at a first transmission time, a first downlink data according to N sets of scheduling information detection. Specifically, the data of the first terminal device the received cyclic redundancy check (Cyclic Redundancy Check, CRC), as if the CRC check, it is considered a first downlink data is detected; if the CRC check fails, then that It does not detect the first downlink data. Thus, step 105 includes performing two cases: a case, a first transmission time unit, a first terminal device information is not detected based on any of the first to N sets scheduling downlink data, i.e., a first terminal device does not receive any first downlink data. Case 2, a first transmission time unit, a first detecting terminal device according to a first scheduling information to the N sets of downlink data, the downlink data to the first network device according to the N groups of M sets of scheduling information scheduling configuration information, the downlink data of the first downlink data comprises at least one of said M≤N.
[0174] When the M group scheduling information indicating scheduling information of each of a set of channel resources and / or the MCS, a first downlink data includes M downlink data, the M downlink data information carried by the same, at this time, as long as the first terminal M successfully detected a downlink data comprises a first data in the downlink, on behalf of a first successfully received downlink data; when M group scheduling information indicating scheduling information of i-th group S i Channel resources and / or S i A MCS, comprising a first downlink data S i Downlink data, the network device comprising a first downlink data S i-th group of schedule information configuration i Downlink data, S i Downlink data information carried by the same, at this time, as long as the first terminal successfully detects an S i A downlink data in the downlink data, the network device represents the first successful reception of downlink data in accordance with configuration information dispatch group i.
[0175] In one possible implementation, the downlink data includes M first downlink data, downlink data of the M carry the same information, the first terminal device at the time of the first transmission unit according to the N groups detecting the first downlink scheduling information data, comprising: a first terminal device in the first transmission time extraction unit from the set of M of the M channel resource scheduling information indicative of the M downlink data; and / or said first terminal equipment unit demodulates the MCS according to the M groups of M scheduling information indicated in the transmission time of the first M downlink data.
[0176] In another possible implementation, the scheduling information comprises a set of M i-th group of the N sets of scheduling information in the scheduling information, downlink data comprises a first S i Downlink data, said first terminal equipment unit in accordance with a first downlink data to the N sets of scheduling information detected in the first transmission time, comprising: a first terminal device according to the i-th group scheduling information detector S i Downlink data, the S i Downlink data carries the same information. Further comprising said first downlink data S j Downlink data, the scheduling information further comprising a set of M j th group scheduling information of the N sets of scheduling information, the scheduling information of the j-th group with the i-th group the scheduling information for different scheduling information, a second a first terminal device N sets of data based on the downlink scheduling information is detected in the first transmission time unit, comprising: detecting information of the first terminal device based on the first of the S group scheduling j j Downlink data, the S j Downlink data carries the same information; wherein, the S j Downlink data and the information carried S i Downlink data carries the same information is not, S j For integer.
[0177] Incidentally, step 101 to step 105 may not be performed in the order of 105 to 101, columns such as: Step 104 may be located prior to the step before step 102 or 103, the present invention is not limited.
[0178]The data transmission method according to an embodiment of the present invention, the network device configuration according to the needs of the N sets of terminal device group the scheduling information, according to N sets of M group scheduling information in the scheduling information configuring at least one downlink data, and a first transmission time to the second unit a terminal device transmits a first downlink data; correspondingly, the terminal device determines that the first N sets the scheduling information, a first information detection unit and the downlink data scheduled in accordance with a first set of N transmission time. In this process, since the first downlink data comprises at least one downlink data, the at least one downlink book carry the same information, the first terminal device only needs a downlink data successfully detected first downlink data, which indicates successful reception data through multiple transmission, to achieve a successful detection of the first successful transmission of downlink data, and high reliability data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0179] Optionally, the above-described embodiment, when the M group scheduling information indicating scheduling information of each of a set of channel resources and / or MCS. Specifically, see Figure 3A , Figure 3A The method of the present invention, a data transmission scheduling information of one example of a schematic diagram.
[0180] Please refer to Figure 3A For M = 5 as an example, the scheduling information includes a first set of M group scheduling information shown in FIG scheduling information to the fifth group (partially filled in five kinds of patterns in FIG.), The five sets of scheduling information are located at different frequency bands , resource scheduling information of each channel is continuous frequency domain resource. In this case, the downlink data includes M first downlink data, the network device configuration in accordance with a first downlink data scheduling N sets of the M sets of scheduling information comprises information at least one of two steps: the network the apparatus M modulation coding scheme MCS and the scheduling information indicates the M groups, M downlink data modulation; the network device, the downlink data are mapped to the M channels of said M groups of resource scheduling information indicates. This process, M is a first downlink data carries the same information.
[0181] The above-described embodiments, the network device configuration information of the first downlink data according to scheduling includes downlink data M groups of M carry the same information, the first transmission unit transmits the M downlink data carrying the same information to the first terminal device such that the first terminal of the M downlink data is detected, mainly for M greater than 1.
[0182] Optionally, the above-described embodiment, the scheduling information for any set of group scheduling information M indicates the i-th group scheduling information, scheduling information indicates i-th group S i Channel resources, or the scheduling information indicates i-th group S i Channel resources and S i A MCS, or the scheduling information indicates i-th group S i Channel resources, S i A MCS, and S i Redundancy version (RedundancyVersion, RV); wherein, S i 1 and is an integer, at this time, including a first downlink data S i Downlink data. For example, S i = 5, S i Channel resources are located in different frequency bands in the frequency domain, or, S i No correlation between each other channel resources. Wherein the channel resources within each frequency band may be continuous or non-continuous frequency domain resource frequency domain resource, embodiments of the present invention is not limited thereto. Further, embodiments of the present invention, S i Carried on the downlink data channel resources may be self-decodable, respectively. That is, the network device configuration comprises first downlink data S in accordance with any combination combinations i Downlink data. Then, the network device S i S transmits the channel resource i Downlink data. Specifically, see Figure 3b , Figure 3b The method of the present invention, a data transmission scheduling information of another example of FIG.
[0183] Please refer to Figure 3b To S i = 5 as an example, the scheduling information indicating the i-th group S i Channel resources, the S i Channel resources are located in different frequency bands (as shown in FIG diagonal checkered pattern fill). In this case, the group scheduling information M i-th group the scheduling information, a first downlink data configuration of a network device comprises S i Downlink data, the S i Downlink data carrying the same information. Specifically, the i-th group corresponding to the first scheduling information includes downlink data S i Downlink data, the network device configuration data included in the first downlink S i Downlink data comprises at least one of two steps: the network device in accordance with the scheduling information indicates the i-th set of the S i A MCS, modulation of the S i Downlink data; the network device, the S i Downlink data are mapped to the S i The channel resources.
[0184] The above-described embodiment, it is assumed the block error rate of the downlink data channel carried on each of the resources (BLER) is 0.1, the S i When carried on the downlink data channel transmission resources, the probability of error of 10 -Si. For example, S i = 5, the reliability of the data reaches a first downlink 1-10 -5.
[0185] The above-described embodiment, the i-th group of channel resource sets scheduling information non-continuous frequency domain resource, the scheduling information for the kit M in the i-th set group scheduling information, the network device configuration method except that the above-described first downlink external data, can also be employed other arranged first downlink data. For example, a network device transmits downlink data only downlink data included in the first non-contiguous frequency domain resource, in order to achieve 1-10 -5 Reliability, require very low MCS. It comprises the following two steps in this case, when the network device configuration in accordance with a first downlink data scheduling N M kits kit scheduling information message at least one of: a network device according to the i-th set group indicated in the scheduling information very low modulation of a downlink data MCS; the network device on a downlink is mapped to the i-th set of data channel resources indicated by the scheduling information group.
[0186] The above-described embodiment, the group M for additional scheduling information in the scheduling information except the i-th group the scheduling information, the scheduling information such as the j-th group (assuming s j = 5, s is the j-th group scheduling information indicates j The scheduling information group Figure 3b Filling portion shown hatched), the network equipment in the same manner as processing will not be repeated here.
[0187] The above-described embodiment, the scheduling information for the M groups of i-th group the scheduling information, a first downlink data configuration of a network device comprises S i Downlink data, the S i The same information is carried in downlink data, such that the first terminal apparatus S i Downlink data is detected, mainly for M = 1 or M = 2 case.
[0188] Alternatively, in an embodiment of the present invention, the above-described figure 2 The data transmission method illustrated in further comprising: a network-side apparatus according to a network device N P kit scheduling the scheduling information kit information, configuring the second set of downlink data P set corresponding to the scheduling information, the P≤N ; the network side device data to the second network device means downstream of said second terminal device transmits schedule information set corresponding to P set at a second transmission time, the second terminal device to the terminal device in addition to the group the other terminal apparatus outside the first terminal device. Wherein, P is a positive integer less than or equal to N. In this process, the network side device network device how to schedule the P set information configured according to a second downlink data, see above 102, is not repeated here.
[0189] In a first possible implementation, the network device sends a first transmission time unit M according to the kit of the first scheduling information for configuration of the downlink data, the network device configuration of the information transmission according to the second P kit scheduled downlink data two units do not overlap the transmission time, the sleeve M P group scheduling information with the scheduling kit same information, the same or different parts. Specifically, see Figure 4A , Figure 4b , Figure 4A The method of the present invention, the data transmission time of one unit and the scheduling information is a schematic diagram illustrating the transmission, Figure 4b The data transmission method of the present invention, other transmission time units schematic diagram illustrating the scheduling information.
[0190] Please refer to Figure 4A The first terminal device, i.e. UE1 is located in the first unit transmission time 0, the second terminal device, i.e., UE2 is located in a second transmission time unit, and the first terminal and the second terminal device use different scheduling information. Please refer to Figure 4b , The first terminal equipment UE1 located in the first unit transmission time 0, the second terminal equipment UE2 is located in a second transmission time unit 1, and the same terminal using a first device and the second scheduling information terminal device.
[0191] In another first possible implementation, the network device sends a first transmission time unit M according to the kit of the scheduling information configured second downlink data, the network device configuration of the information transmission according to the second P kit scheduled downlink data two unit transmission time overlap or partially overlap, the sleeve M P group scheduling information with the scheduling information from different kits. Specifically, see Figure 4C , Figure 4C The method of the present invention, the data transmission time of a further transmission unit and a schematic diagram illustrating the scheduling information.
[0192] Please refer to Figure 4C , The first terminal equipment UE1 and the second terminal device are located in the first unit transmission time 0, but the first terminal and the second terminal device use different scheduling information.
[0193] Features URLLC business is a low-latency, that is to say: to send business at any time at any time. Therefore, the need to set aside resources to the terminal device. However, if each of the terminal devices to reserve one or more channel resources, each terminal apparatus can not be used if the channel resources to each other to each other, then the system will URLLC large number of reserved resources. Embodiments of the present invention for a terminal device group, the network device configuration N sets the scheduling information, and one or more channel resources has a plurality of UE needs to transmit downlink data transmission to the terminal device group one or more UE multiplexed channels resources to improve the utilization of channel resources.
[0194] Optionally, the above-described embodiments, the network device before the first unit of data transmission time to the first terminal device transmits the first downlink, further and / or the second terminal device transmits to the first terminal device indication signaling the scheduling information, the scheduling information indicates a group of N signaling is used to indicate the scheduling information. Wherein the scheduling information indicates signaling of higher layer signaling, e.g., dedicated RRC signaling or broadcast signaling or the like. Alternatively, the scheduling signaling may be a physical layer signaling, the physical layer signaling for the particular set of physical layer signaling, i.e., for each terminal device group, has a corresponding physical layer signaling. In order to achieve the reliability of data transmission 1-10 -5 , The reliability of the physical layer signaling to be higher than 1-10 -5. Embodiments of the present invention, the physical layer signaling may be achieved by occupying more reliable indicator channel resources. Thus, compared to a specific terminal device uses a physical layer signaling, using a particular set of physical layer signaling overhead may be significantly lower.
[0195] Alternatively, correspondence, prior to step 104, further comprising: a first terminal device receives signaling information indicating the scheduling, the scheduling information indicates a group of N signaling is used to indicate the scheduling information.
[0196]The above-described embodiment, a network device sends a physical layer signaling, the physical layer signaling may be sent based on the time period T. For example, a network device every time period T, the physical layer signaling transmitted to the first terminal device and / or the second terminal device. Wherein the time period T is a positive number, such as 1ms, 0.5ms, 0.25ms, 0.125ms, 10ms, 2ms, 1/2/3/4 transmission time unit or the like. The time period T is a predefined configuration or network device.
[0197] The above-described embodiments, the network device may send a physical layer signaling using semi-persistent transmission (Semi-Persistent) manner. In this case, the network device T transmits a physical layer signaling to the terminal device based on a time period. For example, a network device every time period T, the physical layer signaling is detected whether there is an update, if the update, it sends a new physical layer signaling.
[0198] The above-described embodiment, N sets of group scheduling information pre-configured, since the pre-configured set of N sets the scheduling information does not need to change very often, you can use higher layer signaling the scheduling information indicates that N kit. In this case, different set of terminal devices, the network device sends high layer signaling to indicate a set of N sets of scheduling information. Higher layer signaling, for example, radio resource control (Radio ResourceControl, RRC) signaling or medium access control (Media Access Control, MAC) signaling, etc.
[0199] The above-described embodiment, since the service is URLLC may trigger at any time, once succeeds in the CRC of the first downlink data, the terminal device that successfully received the first downlink data. In order to avoid the terminal apparatus always detects the number of blind detection of the first downlink data, the embodiment of the present invention, the introduction of the downlink data indication signaling. Specifically, the transmission time per unit of the first downlink transmission of data, the network device further transmits data indicating the downlink signaling, the downlink data signaling is used to indicate whether a first transmission time indicative of the data transmitted in downlink. This refers to a downlink data may be transmitted to a terminal device at any of the network service apparatus. Once downlink data transmission indication, any device in the network service a service may be received URLLC terminal equipment needs to detect the downlink data. The network device to transmit the downlink data unit indicating a first transmission time signaling an example, if the downlink data signaling indication indicating a first downlink data transmission within a transmission time unit, even if the downlink data is not transmitted to the first terminal device, the a first terminal device will blind detection of downlink data in a first transmission time unit; otherwise, the first terminal device without first blind detection of downlink data in a first transmission time unit. Wherein the data indicative of the downlink signaling, for example, a physical layer signaling, the physical layer signaling reliability must be very high, such as above 1-10 -5. Accordingly, in a first transmission time, said first terminal device further receives the downlink data signaling indication.
[0200] Figure 5 A signaling diagram according to a second embodiment of the method of the present invention, a data transmission, comprising:
[0201] 201, a first terminal device sends the network device a first downlink data transmission time within a first unit, the first downlink data comprises at least one transport block including the scheduling information.
[0202] In this step a first downlink data, the network device comprising a first terminal device transmits scheduling information within a first transmission time unit, the scheduling information comprises at least one transport block a first data included in a downlink.
[0203] 202, the scheduling information of the network device, the second downlink data according to the configuration.
[0204] In this step, the network device according to scheduling information, such as the scheduling information indicates the channel resource, MCS, RB version arranged at a second downlink data.
[0205] 203, the network device transmitting the first terminal of the second downlink data transmission time within the second unit, wherein said unit is located at the first transmission time period prior to the second transmission unit.
[0206] In this step, the network device is located after the first transmission time unit, a second transmission time unit, a first terminal device transmits data to the second downlink; correspondingly, the first terminal device receives the first unit in a first transmission time a downlink data.
[0207] 204, the first terminal device in the second unit transmission time based on the demodulation of the second downlink data scheduling information.
[0208] In this step, a first terminal apparatus demodulates the received second downlink data transmission time in the second unit, the second downlink data to a network device configured in accordance with the scheduling information.
[0209] The data transmission method according to an embodiment of the present invention, the network device first terminal device transmits a first downlink data transmission time within a first unit, the first downlink data comprises at least one transport block including the scheduling information according to the scheduling information, configuring a second downlink data, and the second unit transmits downlink data to the first terminal device at a second transmission time, corresponding to the first terminal device a second demodulated downlink data received in the second transmission time unit . In this process, the network device transmits first scheduling information to the first terminal device, and then transmits to the first terminal apparatus according to the downlink scheduling information to the configuration data, such that the first terminal device can detect the downlink data according to scheduling information, high reliability of data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0210] Alternatively, a first downlink data comprises one or two transport blocks. A downlink transport block a first data includes the scheduling information. Scheduling information occupies the transport block X in bits, e.g., X bits before the scheduling information of the transport block or occupy the X bits, i.e., first X bits of the transport block or after the scheduling information bits X , X≥1 and is an integer. Specifically, see Figure 6A , Figure 6A The method of data transmission scheduling information includes a transport block schematic diagram of the present invention. Please refer to Figure 6A , A transport block, following line shared channel (Downlink share channel, DL-SCH) first X bits of the scheduling information.
[0211] Alternatively, a first downlink data comprises two transport blocks. X occupying the scheduling information bits of each transport block of two transport blocks, for example, the scheduling information is in the two transport blocks first X bits of each transport block or after X bits, that is, the two transport blocks before or after X X bits are bits of the scheduling information.
[0212] Optionally, the above-described embodiment, in addition to one transport block including the scheduling information, the scheduling information may also comprise information indicating domain. Y bit information indicating the scheduling information of the domain occupied by said first downlink data one or two transport blocks. For example, the scheduling information indicating field information of the first Y bits occupy one or two transport blocks, and the scheduling information of the occupation of the Y bits X bits. Wherein the scheduling information indicates whether the domain information for a first downlink scheduling information indicates the presence of data. If the scheduling information indicates the data field comprises information indicating a first downlink scheduling information, a first terminal apparatus that the first scheduling information includes downlink data; otherwise, a first terminal device that is not included in the first downlink data scheduling information. Specifically, see Figure 6B , Figure 6B Data transmission method of the present invention comprises a transmission block schematic domain information indicating the scheduling information and scheduling information. Please refer to Figure 6B , A transport block, a first Y bits of the following row shared channel (Downlink sharechannel, DL-SCH) for the scheduling information indicates the domain information, adjacent to the Y X-bit bit of the scheduling information. Wherein, Y is equal to 1 or other values. When no schedule information, the network device may be configured to schedule information indication field indicates that no information includes scheduling information, resource scheduling information freed occupied.
[0213] The above-described embodiment, the carrier scheduling all the information jointly coded transport block information, i.e. the scheduling information and the DL-SCH data information is jointly encoded together, or, the scheduling information indicating information, scheduling information, and DL-SCH data is combined with coding. A first terminal device upon successful CRC check, the data is considered successfully received scheduling information and the transmission block.
[0214] The above-described embodiment, the data contained in the first downlink scheduling information for transmitting the subsequent downlink data, i.e., the network device configuration and transmit a second downlink data according to the scheduling information. Specifically, see Figure 7 , Figure 7 Examples channel resources in the data transmission method of the first downlink scheduling information indicates the data of the present invention. FIG.
[0215] Please refer to Figure 7 In the first transmission time unit 0, a first terminal device receives a first downlink data transmitted from a network device in the third set of channel resources indicated by the scheduling information, downlink transport block a first data includes the scheduling information containing the channel resource scheduling information indicates the second transmission time is within 1 unit.
[0216] Further, in the embodiment, it may be the above-described embodiment of the invention figure 2 Embodiment shown in Figure 5 Example combines the transmission data shown in FIG. Specifically, see Figure 8 , Figure 8 A signaling diagram according to a third, embodiment includes a data transmission method of the present invention:
[0217] 301, network device configuration information group scheduling N, N is a positive integer.
[0218] 302, the network device configuring the first set of N downlink data based on the scheduling information in the scheduling information is set, the at least one transport block of data including the first downlink scheduling information contains.
[0219] 303, a first network device transmits a first downlink data terminal device within a first transmission time unit.
[0220] Accordingly, the first terminal device receives the network device within a first transmission time in accordance with a first downlink data unit N sets of scheduling information in a set of scheduling configuration information.
[0221] 304, network device information of the scheduling, the downlink data according to the second configuration.
[0222] 305, the network device first terminal apparatus transmitting the second downlink data transmission time within the second unit.
[0223] 306, a first set of N terminal determines scheduling information the network device configuration, N is a positive integer.
[0224] 307, a first demodulation of the second terminal device information in the second downlink data according to the scheduling transmission time unit.
[0225] Specific steps 301 and 306 can be found in steps 101 and 104, not described herein again.
[0226] Figure 9 A schematic structural diagram of a network device of the embodiment of the present invention. Network device according to the present embodiment, the present invention can be realized figure 2 And optional steps of the method applied to a network device according to an embodiment, the specific implementation process is not repeated here. Specifically, the present embodiment provides a network device comprising:
[0227] Processing module 11, the scheduling information for configuring the group N, N is a positive integer; M groups according to the N sets of scheduling information in the scheduling information, the configuration of the first downlink data, the downlink data includes at least a first downlink data, the M ≦ n, and M is a positive integer;
[0228] Transceiver module 12, a first transmission time for data to the first unit transmitting the first downlink terminal device.
[0229]Embodiment of the present invention to provide a network device, arranged according to the needs of N sets of scheduling information terminal device group according to N sets of M sets of scheduling information in the scheduling information configuring at least one downlink data transmission time and the first unit to a first terminal device transmitting a first downlink data; correspondingly, the terminal device determines that the first N sets the scheduling information, and the information is detected in accordance with a first downlink data scheduled in the first set of N transmission time unit. In this process, since the first downlink data comprises at least one downlink data, the at least one downlink book carry the same information, the first terminal device only needs a downlink data successfully detected first downlink data, which indicates successful reception data through multiple transmission, to achieve a successful detection of the first successful transmission of downlink data, and high reliability data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0230] Alternatively, in an embodiment of the present invention, the downlink data includes M first downlink data, downlink data of the M carry the same information, the processing module 11 in the N groups according to the scheduling information M sets of the scheduling information, when the configuration of the first downlink data, particularly according to the scheduling information indicates a set of M M modulation and coding scheme the MCS, respectively, the M downlink data modulation; and / or, the M the downlink data are mapped to the M groups of M scheduling on the channel resource information indicated.
[0231] Alternatively, in an embodiment of the present invention, the scheduling information comprises a set of M i-th group of the N sets of scheduling information in the scheduling information, the scheduling information indicates the i-th group S i Channel resources, or the scheduling information indicates i-th group S i Channel resources and S i A MCS, or the scheduling information indicates i-th group S i Channel resources, S i A MCS, and S i Redundancy version RV;
[0232] Where S i 1 and is an integer.
[0233] Alternatively, in an embodiment of the present invention, comprises the first downlink data S i Downlink data, the processing module 11 in accordance with the M groups of N sets of scheduling information in the scheduling information, when the configuration of the first downlink data, in accordance with the specific group i scheduling information, the configuration S i Downlink data, the S i Downlink data carries the same information.
[0234] Alternatively, in an embodiment of the present invention, the first data further comprises downlink S j Downlink data, the scheduling information includes a first set of M j of said N sets of group scheduling information in the scheduling information, the scheduling information of the j-th group with the i-th group the scheduling information for different scheduling information, the processing module in the group of 11 M N sets of scheduling information for the scheduling information, when the configuration of the first downlink data, j based on the first set of specific scheduling information, the configuration S j Downlink data, the S j Downlink data carries the same information;
[0235] Wherein, said S j Downlink data and the information carried S i Downlink data carries the same information is not, S j For integer.
[0236] Alternatively, in an embodiment of the present invention, the processing module 11 is further configured to group the scheduling information according to the N P group scheduling information, the configuration of the second downlink data, and P is the positive P≤N integer;
[0237] The transceiver module 12 is further configured at a second transmission time data to the second unit transmitting the second downlink terminal device.
[0238] Alternatively, in an embodiment of the present invention, the transmission time of the first unit and the second unit does not overlap the transmission time, the M groups P scheduling information with the same set of scheduling information, the same or different moiety;
[0239] or,
[0240] Transmission time of the first unit and the second unit transmission time overlap or partially overlap, the M groups P scheduling information with the scheduling of different information groups.
[0241] Alternatively, in an embodiment of the present invention, the transceiver module 12, before the first unit of data transmission time to the first terminal device transmits the first downlink, said first terminal to a further device and / or the second terminal device transmits an indication signaling the scheduling information, the scheduling information indicates a group of N signaling is used to indicate the scheduling information, the signaling of scheduling information indicates physical layer signaling or higher layer signaling.
[0242] Alternatively, in an embodiment of the present invention, the transceiver module 12, for further transmission time of the first unit to the first terminal device transmits downlink data indication signaling, the downlink data signaling indication for the first transmission time indicative of whether a first downlink data transmission.
[0243] Figure 10 Schematic structural diagram of a terminal device of the present embodiment of the invention. A terminal device provided in the present embodiment, the present invention may be implemented figure 2 And optional steps of the method applied to a terminal apparatus according to an embodiment, the specific implementation process is not repeated here. Specifically, the terminal device of the present embodiment include:
[0244] 21 is a processing module, the scheduling information is used to determine the group N, the N is a positive integer, a data unit of the first downlink scheduling information according to the N groups detected at the first transmission time, said first downlink data comprises at least one downlink data.
[0245] Terminal device according to an embodiment of the present invention, particularly the first terminal device, the network device configuration information according to N sets of scheduling requirements of a terminal device group, configuring at least one downlink data according to N sets of the M sets of scheduling information for the scheduling information, and at its a unit transmission time data to the first terminal device transmits a first downlink; Accordingly, the first terminal device is determined that N sets of scheduling information and downlink data unit of the first scheduling information is set based on the N detected first transmission time. In this process, since the first downlink data comprises at least one downlink data, the at least one downlink book carry the same information, the first terminal device only needs a downlink data successfully detected first downlink data, which indicates successful reception data through multiple transmission, to achieve a successful detection of the first successful transmission of downlink data, and high reliability data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0246] Alternatively, in an embodiment of the present invention, the first downlink data to the network device configured in accordance with the M groups of N sets of scheduling information in the scheduling information, the M ≦ N, and M is a positive integer.
[0247] Alternatively, in an embodiment of the present invention, the downlink data includes M first downlink data, downlink data of the M carry the same information, the cell information according to the schedule set in the first N transmission time first downlink data, the processing module 21, in particular for the first transmission time unit of said M downlink data removed from said M groups of resource scheduling information of the M channels indicated; and / or, the processing module 21, a first transmission time unit in accordance with said N sets of detecting a first downlink data scheduling information, MCS specific for the M unit in the first transmission time according to the scheduling information indicates a set of M demodulating said M downlink data.
[0248] Alternatively, in an embodiment of the present invention, the scheduling information comprises a set of M i-th group of the N sets of scheduling information in the scheduling information, the scheduling information indicates the i-th group indicated S i Channel resources, or the scheduling information indicates i-th group S i Channel resources and S i A MCS, or the scheduling information indicates i-th group S i Channel resources, S i A MCS, and S i Redundancy version RV;
[0249] Where S i 1 and is an integer.
[0250] Alternatively, in an embodiment of the present invention, comprises the first downlink data S i Downlink data, the processing module 21, a transmission time when the first data unit of the first downlink scheduling information according to the N sets of detection, particularly for the i-th group according to the scheduling information detector S i Downlink data, the S i Downlink data carries the same information.
[0251] Alternatively, in an embodiment of the present invention, the first data further comprises downlink S j Downlink data, the scheduling information includes a first set of M j of said N sets of group scheduling information in the scheduling information, the scheduling information of the j-th group with the i-th group the scheduling information for different scheduling information, the processing module 21, specific information for detecting the set S j based on the first scheduling j Downlink data, the S j Downlink data carries the same information;
[0252] Wherein, said S j Downlink data and the information carried S i Downlink data carries the same information is not, S j For integer.
[0253] Please refer to Figure 10 The terminal apparatus according to an embodiment of the present invention, further comprising:
[0254] Transceiving module 22, the processing module 21 to the unit prior to the N sets of scheduling information for downlink data according to a first detector receiving the scheduling information indicates the signaling network device sends a first transmission time, the scheduling information indication signaling is used to instruct the N sets of scheduling information indicating the scheduling information signaling is higher layer signaling or physical layer signaling.
[0255] Alternatively, in an embodiment of the present invention, transceiver module 22, the processing module 21 for transmission at a first set of N time units before said detecting a first downlink scheduling information according to data received by the network device indicative of downlink data signaling unit transmits the first transmission time, and the downlink data signaling indicating whether a first downlink transmission data indicative of the first transmission time.
[0256] Figure 11 Structural diagram of embodiment 2 of the present invention, network devices, network apparatus of this example is provided comprising: a processor 31, a memory 32, a communication interface 33 and the system bus 34, the memory 32 and the communication interface 33 via the system bus 34 is connected to the processor 31 and perform communication with each other, a memory 32 for storing computer execution instruction, the communication interface 33 for communicating with other devices, the processor 31 for operating the computer execute instructions to cause the apparatus to perform network as applied to figure 2 Or alternative embodiments of the individual steps.
[0257] Figure 12 Structural diagram according to a second embodiment of the terminal apparatus of the present invention, comprises a terminal device provided in the present embodiment: a processor 41, memory 42, communication interface 43 and a system bus 44, the memory 42 and the communication interface 43 through the system bus 44 is connected to the processor 41 and perform communication with each other, 42 for storing a computer to execute instructions in the memory, a communication interface 43 for communicating with other devices, the processor 41 for operating the computer-executable instructions, cause the apparatus to perform the above is applied to the terminal figure 2 Or alternative embodiments of the individual steps.
[0258] Figure 13 Schematic structural diagram of a third embodiment of the present invention, a network device. Network device according to the present embodiment, the present invention can be realizedFigure 5 And optional steps of the method applied to a network device according to an embodiment, the specific implementation process is not repeated here. Specifically, the present embodiment provides a network device comprising:
[0259] Transceiver module 51, a first terminal device for transmitting a first downlink data transmission time within a first unit, at least one transport block data included in the first downlink scheduling information comprising;
[0260] The processing module 52, according to the scheduling information, a second downlink data configuration;
[0261] The transceiver module 51, for the first terminal device further within a second time the transmission unit transmits the second downlink data;
[0262] Wherein the first transmission time unit is located before the second transmission time unit.
[0263] The at least one transport block network device according to an embodiment of the present invention, the first terminal device transmits a first downlink data transmission time within a first unit, included in the first downlink data comprising scheduling information, in accordance with the scheduling information, the configuration a second downlink data and transmits downlink data to the second terminal of the first unit in a second transmission time, corresponding to the first terminal apparatus demodulates the received second downlink data transmission in the second time unit. In this process, the network device transmits first scheduling information to the first terminal device, and then transmits to the first terminal apparatus according to the downlink scheduling information to the configuration data, such that the first terminal device can detect the downlink data according to scheduling information, high reliability of data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0264] Alternatively, in an embodiment of the present invention, the downlink data comprises a first transport block A, the scheduling a first X bits of information occupying the transport block A transmission block or after X bits ;
[0265] or,
[0266] The first downlink transmission includes two data blocks, the scheduling information occupying the two transport blocks first X bits of each transport block or after X bits;
[0267] Wherein, X≥1 and is an integer, A is equal to 1 or 2.
[0268] Alternatively, in an embodiment of the present invention, the transport block further includes scheduling information indicating the domain information,
[0269] A downlink data including the first transport block, the scheduler first Y bits of information indicating a transport block occupying the A domain information block transmission, the scheduling information occupies one of the transport block described later in the Y bits X bits;
[0270] or,
[0271] The first downlink transmission includes two data blocks, the scheduling information indicates the domain information occupies two transport blocks first Y bits of each transport block, the scheduling information occupying the two transport blocks Y X bits after the bits in each transport block;
[0272] Wherein, X≥1 and is an integer, A is equal to 1 or 2.
[0273] Alternatively, in an embodiment of the present invention, all of the information in the transport block joint coding.
[0274] Alternatively, in an embodiment of the present invention, the processing module 52 is further configured to prior to a first terminal apparatus transmitting a first downlink data transceiving module 51 within the first transmission time unit configured group scheduling N information, N is a positive integer, arranged said first set of N downlink data according to the scheduling information in the scheduling information is set.
[0275] Figure 14 Schematic structural diagram of a terminal device according to a third embodiment of the present invention. A terminal device provided in the present embodiment, the present invention may be implemented Figure 5 And optional steps of the method applied to a terminal apparatus according to an embodiment, the specific implementation process is not repeated here. Specifically, the terminal device of the present embodiment include:
[0276] Transceiver module 61, for receiving a first downlink data transmitted within the network device a first transmission time unit, the at least one transport block data included in the first downlink scheduling information comprising;
[0277] The processing module 62, a second transmission time unit in accordance with said second downlink scheduling information demodulated data, said second downlink data to the network device configuration according to the scheduling information;
[0278] Wherein the first transmission time unit is located before the second transmission time unit.
[0279] Terminal device according to an embodiment of the present invention, the network device receives a first downlink data occurs in the first transmission time unit, the at least one transport block of the first downlink scheduling information comprising data included in the second network device receiving the transmission the second downlink data transmission and the demodulation unit time. In this process, the network device transmits first scheduling information to the first terminal device, and then transmits to the first terminal apparatus according to the downlink scheduling information to the configuration data, such that the first terminal device can detect the downlink data according to scheduling information, high reliability of data transmission. Meanwhile, both to avoid the problem of low reliability of the PDCCH dynamically scheduled, without the introduction of a large number of control overhead, and can obtain a link adaptation.
[0280] Alternatively, in an embodiment of the present invention, the downlink data comprises a first transport block A, the scheduling a first X bits of information occupying the transport block A transmission block or after X bits ;or,
[0281] The first downlink transmission includes two data blocks, the scheduling information occupying the two transport blocks first X bits of each transport block or after X bits;
[0282] Wherein, X≥1 and is an integer, A is equal to 1 or 2.
[0283] Alternatively, in an embodiment of the present invention, the downlink data comprises a first transport block A, the scheduling information indicates the domain information occupies a first Y bits of the transport block transmission of the A block, the scheduling information to the one occupied by the bits of the transport block X Y bits; or
[0284] The first downlink transmission includes two data blocks, the scheduling information indicates the domain information occupies two transport blocks first Y bits of each transport block, the scheduling information occupying the two transport blocks Y X bits after the bits in each transport block;
[0285] Wherein, X≥1 and is an integer, A is equal to 1 or 2.
[0286] Alternatively, in an embodiment of the present invention, all of the information in the transport block joint coding.
[0287] Alternatively, in an embodiment of the present invention, the transceiver module 61, particularly for receiving the first downlink transmission time unit in a first network device configuration according to N sets of scheduling information in a group scheduling information data.
[0288] Figure 15 Schematic structural diagram of a fourth embodiment of the present invention, a network device, a network device provided in the present example includes: a processor 71, a memory 72, a communication interface 73 and a system bus 74, the memory 72 and the communication interface 73 through the system bus 71 is connected to the processor 74 and perform communication with each other, a memory 72 for storing computer execution instruction, the communication interface 73 for communicating with other devices, the processor 71 for operating the computer execute instructions to cause the apparatus to perform network as applied to Figure 5 Or alternative embodiments of the individual steps.
[0289] Figure 16 Schematic structural diagram of a terminal device according to a fourth embodiment of the present invention, a terminal device according to the present embodiment include: a processor 81, a memory 82, a communication interface 83 and a system bus 84, the memory 82 and the communication interface 83 through the system bus 84 is connected to the processor 81 and perform communication with each other, 82 for storing a computer to execute instructions in the memory, a communication interface 83 for communicating with other devices, the processor 81 for operating the computer-executable instructions, cause the apparatus to perform the above is applied to the terminal Figure 5 Or alternative embodiments of the individual steps.
[0290] One of ordinary skill in the art will appreciate that all or some of the steps to implement the above method embodiments can be done by a hardware associated with a program instruction, and the aforementioned program can be stored in a computer readable storage medium. When executed, execute The steps including the above method embodiments; the aforementioned storage medium includes: a medium such as a ROM, RAM, a disk, or an optical disk, can store the program code.
[0291] It will be noted in that the above examples are intended to illustrate the technical solutions of the present invention, not to limit the present invention; The technical scheme described in the foregoing embodiments can still be modified, or partially or all of the technical features are still equivalent to alternative; and these modifications or replacements do not allow the nature of the corresponding technical solution from the present invention. Scope.

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