WO2019157969A1 - Data transmission method and device - Google Patents

Abstract

The present application provides a data transmission method, which relates to the field of communication technology, and can reduce the ratio of timeout data packets. The method comprises: a terminal device receiving uplink authorization information sent by a network device, the uplink authorization information being used to indicate uplink resources allocated to the terminal device; according to the remaining time of N data packets to be sent, the terminal device allocating uplink resources to K data packets among the N data packets, N≥K≥1, K and N both being integers; and the terminal device sending the K data packets to the network device on the uplink resources.

Description

Data transmission method and device

The present application claims priority to Chinese Patent Application No. 201101152252.4, entitled "A Data Transmission Method and Apparatus", filed on February 14, 2018, the entire disclosure of which is incorporated herein by reference. .

Technical field

The present application relates to the field of communications technologies, and in particular, to a data transmission method and apparatus.

Background technique

In a long term evolution (LTE) system, when a user equipment (UE) needs to send a data packet to a base station, the base station allocates an uplink resource to the UE according to the amount of data and the service priority that the UE requests to transmit. And instructing by issuing an uplink grant (UL grant) information. After receiving the uplink grant information, the UE generally allocates uplink resources according to the logical channel prioritization (LCP) process for the buffered data packets based on the uplink resources allocated by the base station. The specific process is as follows:

The terminal device caches the data packets to be transmitted in the service type in the logical channel corresponding to the service. After the terminal device receives the uplink authorization information, the terminal device follows the logical channel priority. In LTE, the priority of the logical channel is determined by the base station. Allocating uplink resources to data packets in the high priority logical channel according to the priority of the service and determining the high-to-low order of the UE, until the uplink resource allocated for the logical channel satisfies the priority of the logical channel The bit rate (prioritised bit rate (PBR), or the uplink resource indicated by the uplink grant information is allocated when the condition of the PBR is satisfied. After the resource allocation to the high priority logical channel is completed, if there are remaining uplink resources, the terminal device allocates resources for the data packets buffered in the logical channel of the lower priority level. The UE repeats the foregoing resource allocation process until all uplink resources are allocated, or all logical channels that buffer the data packets complete resource allocation, and send corresponding data packets to the base station according to the resource allocation result.

However, in the above LCP process, a packet with a short remaining time may not be allocated to a resource due to a PBR limitation of the logical channel, or a low priority may be caused by a packet in a high-priority logical channel occupying all the uplink resources. Packets with shorter remaining time in the logical channel of the level cannot be allocated to resources, which causes these packets with shorter remaining time to time out, and it is difficult to guarantee performance indicators of high reliability services.

Summary of the invention

The present application provides a data transmission method and apparatus capable of reducing the ratio of timeout packets.

In a first aspect, the application provides a data transmission method, including: receiving, by a terminal device, uplink authorization information sent by a network device, where uplink authorization information is used to indicate an uplink resource allocated to the terminal device; and the terminal device is configured according to the N data packets to be sent. For the remaining time, an uplink resource is allocated for K data packets in N data packets, N≥K≥1, and K and N are integers; the terminal device sends K data packets to the network device on the uplink resource.

With the data transmission method provided by the present application, the terminal device can perform uplink resource allocation based on the remaining time of the data packet, and to a certain extent, ensure that the data packet with less remaining time has priority to obtain resource allocation, thereby reducing the ratio of the timeout data packet.

Optionally, the terminal device allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including: the terminal device follows the sequence of the remaining time of the N data packets from small to large. , in turn, allocate uplink resources for K packets.

In this optional manner, the terminal device may perform uplink resource allocation according to the remaining time of the N data packets from small to large, so as to ensure that the K data packets with relatively small remaining time in the N data packets have priority to obtain uplink resources. Allocation, which reduces the ratio of timeout packets in N packets.

Optionally, the terminal device allocates uplink resources for the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including: the terminal device according to the remaining of each data packet in the N data packets. The remaining time interval in which the time is located determines the priority of each data packet; the terminal device allocates uplink resources for K data packets in order from the highest to the lowest priority of the N data packets.

In this optional manner, the terminal device can preferentially allocate uplink resources to the data packets with high priority level, so as to preferentially allocate uplink resources to the data packets with shorter remaining time, thereby reducing the timeout data packets in the N data packets. ratio.

Optionally, when the remaining time or the priority of the multiple data packets in the K data packets are the same, the terminal device allocates multiple data packets in descending order of the priority of the logical channels where the multiple data packets are located. Upstream resources.

Optionally, the terminal device allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including: the terminal device caches according to each of the M logical channels. The minimum remaining time of the data packet updates the priority of the M logical channels. The smaller the minimum remaining time, the higher the priority of the logical channel, and the M logical channels are the logical channels for buffering N data packets, M≥2, M is The integer device uses the logical channel priority LCP process to allocate uplink resources for K data packets according to the priority of the updated M logical channels.

Optionally, the terminal device allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including: the terminal device caches according to each of the M logical channels. The remaining time of the data packet determines the priority offset value of each logical channel, and updates the priority of the M logical channels according to the priority offset values of the M logical channels, and the M logical channels are logic for buffering N data packets. The channel, M ≥ 2, M is an integer; the terminal device uses the logical channel priority LCP process according to the priority of the updated M logical channels to allocate uplink resources for K data packets.

The above two alternative manners can flexibly adjust the priority of the logical channel based on the remaining time of the buffered data packet in the logical channel, and improve the priority of the logical channel buffered by the data packet with less remaining time, so that the logic A packet with a smaller remaining time of the channel buffer can obtain uplink resource allocation to a certain extent in advance.

Optionally, the terminal device allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including: the terminal device caches according to each of the M logical channels. The remaining data time is less than or equal to the total data amount of the data packet of the preset first threshold value, and the logical channel priority LCP process is used to allocate uplink resources for K data packets, and the M logical channels are buffered for N data packets. Logical channel, M≥2, M is an integer.

With this optional mode, it is possible to avoid that the uplink resource allocation cannot be obtained for a packet with a small remaining time in the logical channel due to the limitation of the PBR value of the logical channel when the uplink resource is sufficient. This reduces the ratio of timeout packets buffered in each logical channel.

Optionally, the K data packets are data packets in the N data packets whose remaining time is less than or equal to the preset second threshold value, K<N; if the terminal device allocates uplink resources for the K data packets, The method further includes: the terminal device adopts a logical channel priority LCP process, and allocates the remaining uplink resources in the uplink resource for at least one of the remaining data packets.

In a second aspect, the application provides a communication device, including: a receiving unit, configured to receive uplink grant information sent by a network device, where uplink grant information is used to indicate an uplink resource allocated to the communications device, and an allocating unit, configured to send For the remaining time of the N data packets, an uplink resource is allocated for the K data packets of the N data packets, N≥K≥1, and K and N are integers; the sending unit is configured to send the uplink resource to the network device. K packets.

Optionally, the allocating unit is configured to allocate uplink resources to the K data packets in order according to the remaining time of the N data packets.

Optionally, the allocating unit is specifically configured to determine a priority of each data packet according to a remaining time interval in which the remaining time of each of the N data packets is located, and according to a priority of the N data packets In the low order, uplink resources are allocated for K packets in turn.

Optionally, when the remaining time or priority of the multiple data packets in the K data packets is the same, the allocating unit allocates multiple data packets in descending order of priority of the logical channels where the multiple data packets are located. Upstream resources.

Optionally, the allocating unit is configured to update the priority of the M logical channels according to the minimum remaining time of the data packet buffered in each of the M logical channels, and according to the priority of the updated M logical channels. The logical channel priority LCP process is used to allocate uplink resources for K data packets. The smaller the minimum remaining time, the higher the priority of the logical channel, and the M logical channels are the logical channels for buffering N data packets, M≥2 , M is an integer.

Optionally, the allocating unit is configured to determine a priority offset value of each logical channel according to a minimum remaining time of the data packet buffered by each of the M logical channels, and according to priority of the M logical channels. The offset value updates the priority of the M logical channels, and according to the priorities of the updated M logical channels, uses the logical channel priority LCP process to allocate uplink resources to K data packets to buffer N data. The logical channel of the packet, M ≥ 2, M is an integer.

Optionally, the allocating unit is configured to adopt a logical channel priority according to a total data volume of a data packet whose remaining time in each of the M logical channels is less than or equal to a preset first threshold. In the LCP process, uplink resources are allocated for K data packets, and M logical channels are logical channels for buffering N data packets, M≥2, and M is an integer.

Optionally, the K data packets are data packets in the N data packets whose remaining time is less than or equal to the preset second threshold value, K<N; the allocation unit is also used to allocate the data packets for the K packets. After the uplink resource, if there is any remaining uplink resource, the logical channel priority LCP process is used to allocate the remaining uplink resources in the uplink resource for at least one of the remaining data packets.

For technical effects of the communication device provided by the present application, refer to the technical effects of the foregoing first aspect or the implementation manner of the first aspect, and details are not described herein again.

In a third aspect, the application provides a terminal device, including: a processor, a memory, a bus, and a transceiver, wherein the processor is connected to the memory and the transceiver through a bus; the memory is configured to store program instructions; and the processor is configured to be in the terminal. When the device is running, executing program instructions to control the transceiver to receive the uplink authorization information sent by the network device, and allocate uplink resources for the K data packets in the N data packets according to the remaining time of the N data packets to be sent, and The control transceiver sends K data packets to the network device on the uplink resource, where the uplink grant information is used to indicate the uplink resource allocated to the terminal device, where N≥K≥1, and K and N are integers.

Optionally, the processor allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, where the following includes: according to the remaining time of the N data packets, from small to large. Allocate uplink resources for K packets in turn.

Optionally, the processor allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: remaining time according to each data packet in the N data packets. The remaining time interval is determined, and the priority of each data packet is determined, and the uplink resources are allocated for K data packets in order according to the priority of the N data packets from high to low.

Optionally, when the remaining time or priority of the multiple data packets in the K data packets is the same, the processor allocates multiple data packets in descending order of priority of the logical channels where the multiple data packets are located. Upstream resources.

Optionally, the processor allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: buffering according to each of the M logical channels. The minimum remaining time of the data packet updates the priority of the M logical channels, and uses the logical channel priority LCP process to allocate uplink resources for K data packets according to the priority of the updated M logical channels, and the minimum remaining time is smaller. The higher the priority of the logical channel, the M logical channels are logical channels for buffering N data packets, M≥2, and M is an integer.

Optionally, the processor allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: data buffered according to each of the M logical channels. The minimum remaining time of the packet determines a priority offset value of each logical channel, and updates the priority of the M logical channels according to the priority offset values of the M logical channels, and according to the priority of the updated M logical channels The logical channel priority LCP process is used to allocate uplink resources to K data packets. The M logical channels are logical channels for buffering N data packets, M≥2, and M is an integer.

Optionally, the processor allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: buffering according to each of the M logical channels. The total data amount of the data packet whose remaining time is less than or equal to the preset first threshold value, uses the logical channel priority LCP process to allocate uplink resources for K data packets, and M logical channels are logic for buffering N data packets. Channel, M≥2, M is an integer.

Optionally, the K data packets are data packets in the N data packets whose remaining time is less than or equal to the preset second threshold value, K<N; the processor is also used to allocate the data packets for the K packets. After the uplink resource, if there is any remaining uplink resource, the logical channel priority LCP process is used to allocate the remaining uplink resources in the uplink resource for at least one of the remaining data packets.

For technical effects of the terminal device provided by the present application, refer to the technical effects of the foregoing first aspect or the implementation manner of the first aspect, and details are not described herein again.

In a fourth aspect, the present application provides a computer storage medium storing instructions in a computer storage medium, and when the instructions are run on a computer, causing the computer to implement the data transmission method according to the first aspect or the optional aspect of the first aspect .

In a fifth aspect, the present application provides a computer program product comprising instructions which, when run on a computer, cause the computer to implement the data transfer method as described in the first aspect or the alternative aspect of the first aspect.

In a sixth aspect, the present application provides a chip system including at least one chip, and when the chip system is in operation, the data transmission method according to the first aspect or the optional aspect of the first aspect can be implemented.

DRAWINGS

1 is a schematic diagram of a communication system provided by the present application;

2 is a schematic structural diagram of a terminal device provided by the present application;

3 is a flowchart of an embodiment of a data transmission method provided by the present application;

4 is a schematic diagram of a scenario of a data packet buffer provided by the present application;

FIG. 5 is a flowchart of another embodiment of a data transmission method provided by the present application;

FIG. 6 is a schematic structural diagram of a communication apparatus provided by the present application.

Detailed ways

First, the terms "system" and "network" are used interchangeably herein. In this paper, the term "and" is merely an association relationship describing an associated object, indicating that there may be three relationships, for example, A and B, which may indicate that A exists separately, A and B exist simultaneously, and B exists separately. Happening. In addition, the character "/" in this article generally indicates that the contextual object is an "or" relationship.

When the present application refers to ordinal numbers such as "first", "second", "third" or "fourth", unless it is intended to mean the order of the context, it should be understood as merely a distinction.

Secondly, the data transmission method provided by the present application can be applied to an LTE system, an advanced long-term evolution (LTE-A), and an evolved system using an LTE system, such as a fifth-generation communication (5G) system, and a new wireless (new). Radio, NR) system, next-generation wireless LAN system, vehicle to everything (V2X) system.

For example, as shown in FIG. 1 , which is a schematic diagram of a communication system provided by the present application, the data transmission method provided by the present application can be applied to any communication system including at least one network device and at least one terminal device. The network device may be a base station (BS) or a base transceiver station (BTS), and is a device deployed in the radio access network to provide a wireless communication function for the terminal device. In systems using different radio access technologies, the names of devices with base station functions may be different, for example, in an LTE network, called an evolved NodeB (eNB or eNodeB), in the third generation. In a communication (3G) network, it is called a Node B, or is applied to a gNB in a fifth-generation communication system, and the like. For convenience of description, in the present application, the above-mentioned devices having the functions of the base station are collectively referred to as network devices.

The terminal device referred to in the present application may include various handheld devices having wireless communication functions, in-vehicle devices, wearable devices, computing devices, smart phones, smart watches, tablets, or other processing devices connected to wireless modems, and A form of user equipment (UE), a mobile station (MS), a terminal, and the like. For convenience of description, in the present application, the above-mentioned devices are collectively referred to as terminal devices.

As shown in FIG. 2, a terminal device provided by the present application includes a processor 201, a memory 202, a bus 203, a transceiver 204, and the like.

Wherein, the processor 201 is a control center of the terminal device, and connects various parts of the entire terminal device by using various interfaces and buses 203, by running or executing software programs and/or modules stored in the memory 202, and calling the storage in the memory. The data in 202 performs various functions and processing data of the terminal device, thereby performing overall monitoring on the terminal device. The processor 201 can include digital signal processor devices, microprocessor devices, analog to digital converters, digital to analog converters, and the like that can distribute the control and signal processing functions of the terminal devices in accordance with their respective capabilities. The transceiver 204 can be an RF circuit that can be used to transceive information and process the received information to the processor 201 for processing. Typically, RF circuits include, but are not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier (LNA), a duplexer, etc., communicating with other devices over a network via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to a global system of mobile communication (GSM), a general packet radio service (GPRS), a CDMA, a wideband code division. Wideband code division multiple access (WCDMA), LTE, Wi-Fi or low-power Wi-Fi, and WLAN technology.

FIG. 3 is a flowchart of an embodiment of a data transmission method provided by the present application, where the method includes:

Step 301: The terminal device receives uplink authorization information sent by the network device.

The uplink grant information is used to indicate an uplink resource allocated to the terminal device.

Step 302: The terminal device allocates the uplink resource to the K data packets in the N data packets according to the remaining time of the N data packets to be sent, where N≥K≥1, where K and N are integers.

The remaining time information of the data packet is used to indicate that the terminal device needs to complete the sending of the data packet before the end of the remaining time. The remaining time of the data packet may be obtained from a timer associated with the packet data convergence protocol (PDCP) layer, or obtained by a timer associated with a radio link control (RLC) layer. The terminal device needs to complete the sending of the data packet before the end of the remaining time, that is, the terminal device needs to complete the sending of the data packet before the association timer expires.

Step 303: The terminal device sends the K data packets to the network device on the uplink resource.

It can be understood that, if the uplink resources obtained by the terminal device are sufficient, the terminal device may allocate uplink resources according to the data packets with the remaining time being N (ie, K=N). If the terminal device obtains uplink resources is limited, and the supporting terminal device allocates uplink resources for at most K (ie, K<N) packets in the N data packets, the K data packets are the remaining time in the N data packets. Relatively small packets.

That is to say, in the present application, the terminal device performs uplink resource allocation according to the remaining time of the N data packets to be sent, so that K packets with relatively small remaining time in the N data packets can be preferentially obtained. The resources are allocated and sent in time to avoid the K packets being timed out. In particular, in the case where the uplink resources are limited, it is possible to ensure that a certain amount of data packets with less remaining time in the N data packets are preferentially transmitted, thereby reducing the ratio of timeout data packets in the N data packets.

In the following, in combination with the following six examples, in the foregoing step 302, the terminal device performs an exemplary implementation manner of allocating uplink resources for K data packets in the N data packets according to the remaining time of the N data packets to be sent. Description.

Example 1: The terminal device may allocate uplink resources for K data packets in order according to the remaining time of the N data packets from small to large. That is, the allocation is started from the data packet with the smallest remaining time, and the uplink resource is preferentially allocated for the data packet with the smallest remaining time, so as to ensure that the data packet with the smallest remaining time can obtain the uplink resource allocation. When the uplink resources are sufficient, the uplink resources are allocated to the data packets with the remaining time, until the uplink resources are all allocated or the N data packets are allocated uplink resources.

When the remaining times of the multiple data packets in the K data packets are the same, the terminal device may allocate uplink resources to the multiple data packets in a random sequence.

Optionally, the terminal device may also allocate uplink resources to the multiple data packets in descending order of priority of the logical channels where the multiple data packets are located. Specifically, when the remaining time of the plurality of data packets is the same, the higher the priority of the logical channel where the data packet is located, the data packet preferentially obtaining the uplink resource allocation. Packets with the same remaining time in the same logical channel are sequentially allocated in random order.

Exemplarily, as shown in FIG. 4, 8 data packets to be transmitted are buffered in 4 logical channels of the terminal device, wherein the logical channel A has a priority of 1, and the data packet P1-P4 is buffered, and the remaining P1 The time is 0.1ms, the remaining time of P2 is 0.2ms, and the remaining time of P3 and P4 is 0.3ms. The priority of logical channel B is 2, the data packet P5-P7 is buffered, the remaining time of P5 and P6 is 0.1 ms, and the remaining time of P7 is 0.4 ms. The priority of logical channel C is 3, the data packet P8 is buffered, and the remaining time of P8 is 0.3 ms. The priority of the logical channel D is 4, the buffer P9 is buffered, and the remaining time of P9 is 0.6 ms.

The data packets with the smallest remaining time are P1, P5, and P6, and the remaining time is 0.1 ms. After the terminal device obtains the uplink resource, the uplink resource is preferentially allocated for the data packet P1, P5, and P6. It is assumed that in the example, the data packets with the same remaining time are allocated in the order of the highest priority of the logical channel where the data packet is located, then, since the P1 buffer is in the logical channel A, the P5 and P6 are buffered in the logical channel. In B, the priority of the logical channel A is higher than that of the logical channel B (the rule that the higher the priority value is, the higher the priority is, for example), so the terminal device preferentially allocates the uplink resource to the data packet P1. For the data packets P5 and P6, the uplink resources may be allocated in the random sequence, for example, the data packet P5 is allocated first, and then the data packet P6 is allocated.

After the terminal device allocates uplink resources to the P1, P5, and P6 packets with the smallest remaining time, if the uplink resources are sufficient, the terminal device may start from the data packet P2 with the remaining time, according to the order of remaining time from small to large. , in turn, allocate uplink resources for data packets P2, P3, P4, P8, P7, and P9.

It can be understood that, if the uplink resources obtained by the terminal device are limited, the terminal device may start from the data packet P1, in the order of remaining time from small to large, for the data packets P1, P5, P6, P2, P3, P4, P8, The pre-K (K<9) data packets in P7 and P9 are allocated uplink resources to ensure that the K packets with relatively small remaining time among the 9 data packets in the buffer are preferentially allocated uplink resources, thereby reducing the 9 data. The ratio of timeout packets in the packet.

Example 2: The terminal device may first determine the priority of each data packet according to the remaining time interval in which the remaining time of each of the N data packets is located. Then, according to the order of priority of the N data packets from high to low, uplink resources are allocated for K data packets in turn.

When the priorities of the multiple data packets in the K data packets are the same, the terminal device may allocate uplink resources to the multiple data packets in a random sequence. Or, according to the priority of the logical channels where the multiple data packets are located, the uplink resources are allocated to the multiple data packets in sequence.

In this example, the network device may set a mapping relationship between the remaining time interval and the priority of the data packet for the terminal device by using a system message, a dedicated RRC message, or other predetermined message, so that the terminal device obtains the uplink resource. Based on the mapping relationship, the priority of each data packet can be calculated according to the remaining time of each data packet. The smaller the value contained in the remaining time interval of the remaining time of the packet, the higher the priority of the packet.

Exemplarily, the mapping relationship between the remaining time interval and the priority of the data packet is as follows: the remaining time interval of the remaining time of the data packet is (0, 0.2), the priority of the data packet is 1; the remaining time of the data packet The remaining time interval is (0.2, 0.5), and the priority of the data packet is 2; the remaining time interval of the remaining time of the data packet is (0.5, +∞), and the priority of the data packet is 3.

Based on the example shown in FIG. 4, after the terminal device acquires the uplink resource, the priority of the data packets P1, P2, P5, and P6 is determined according to the mapping relationship, and the priority of the data packets P4, P8, and P7 is 2. The priority of packet P9 is 3. Further, the terminal device may allocate uplink resources to the data packets P1, P2, P5, and P6 with priority 1 according to the obtained resource resources of the uplink resources according to the priority of the data packets P1-P9 from high to low. The uplink resources are allocated to the data packets P4, P8, and P7 of the priority level 2, and finally the uplink resources are allocated to the data packet P9.

It is assumed that in this example, the terminal allocates uplink resources for a plurality of data packets of the same priority in descending order of priority of the logical channel in which the data packets are located. Taking the packets P1, P2, P5, and P6 of priority 1 as an example, since the priority of the logical channel A of the buffered data packets P1 and P2 is higher than the priority of the logical channel B of the buffered data packets P5 and P6, The terminal device may first allocate uplink resources for the data packets P1 and P2, and then the data packets P5 and P6. The order between the data packets P1 and P2 and the order between the data packets P5 and P6 may be random.

Then, according to the method provided in the second example, the uplink resource allocation sequence is the data packets P1, P2, P5, P6, P4, P8, P7, and P9. If the uplink resources obtained by the terminal device are limited, the terminal device may start from the data packet P1 according to the priority of the data packet from high to low, and the data packets are P1, P2, P5, P6, P4, P8, P7, and P9. The first K (K<9) data packets in the middle are allocated uplink resources, so as to ensure that the K packets with relatively high priority among the 9 data packets in the cache get the uplink resource allocation preferentially, thereby ensuring the cached 9 data packets. The K packets with relatively small remaining time get the uplink resource allocation preferentially, thereby reducing the ratio of timeout packets in the 9 data packets.

It should be noted that after acquiring the uplink resource each time, the terminal device needs to re-count the remaining time of each data packet and re-determine the priority of the data packet. That is to say, if the data packet buffered in the logical channel is not allocated to the uplink resource during the first data transmission, the terminal needs to re-determine the priority of the data packet in the next data transmission.

Example 3: The terminal device may update the priority of the M logical channels according to the minimum remaining time of the data packet buffered in each of the M logical channels, and the smaller the minimum remaining time, the higher the priority of the logical channel, M The logical channels are logical channels that buffer N packets. Then, according to the priority of the updated M logical channels, the LCP process is used to allocate uplink resources for K data packets.

The LCP process includes the terminal device performing uplink resource allocation according to the priority of each logical channel and the maximum resource amount allowed to be allocated for each logical channel (the maximum resource amount is indicated by the PBR value in the prior art). That is, the terminal device allocates uplink resources to the data packets in the high priority logical channel in the order of the logical channel priority from high to low, until the uplink resource allocated for the logical channel satisfies the maximum resource amount of the logical channel, and then Allocate resources for logical channels with a lower priority level. The foregoing process continues until the uplink resources are allocated, or the uplink resources allocated by all the logical channels satisfy the maximum resource amount; when all the uplink resources allocated by the logical channel satisfy the maximum resource amount, and there are remaining uplink resources, according to the logic The channel priority is assigned in the order of high to low for allocating uplink resources for packets in the logical channel.

In this example, the network device can set the mapping relationship between the minimum remaining time of the data packet buffered in the logical channel and the priority of the logical channel for the terminal device by using the system message or the dedicated RRC message, so that the terminal device obtains the uplink. After the resource, the priority of the M logical channels can be dynamically adjusted based on the mapping relationship.

Exemplarily, the smaller the priority value is, the higher the priority is. For example, the mapping between the minimum remaining time of the buffered data packet in the logical channel and the priority of the logical channel is: if the logical channel The minimum remaining time of the buffered data packet is within 0ms-0.2ms, then the priority of the logical channel is 1; if the minimum remaining time of the buffered data packet in the logical channel is within 0.2ms-0.5ms, the logical channel The priority of the packet is 2; if the minimum remaining time of the buffered packet in the logical channel is 0.5ms-1.0ms, the priority of the logical channel is 3; if the minimum remaining time of the buffered packet in the logical channel is greater than 1.0ms , the logical channel has a priority of 4.

Based on the example shown in FIG. 4, the minimum remaining time of the data packet buffered in logical channel A and logical channel B is 0.1 ms, and the minimum remaining time of the data packet buffered in logical channel C is 0.5 ms, which is buffered in logical channel D. The minimum remaining time of the packet is 0.6ms. Then, according to the mapping relationship, the priorities of the logical channel A, the logical channel C, and the logical channel D are updated to the original values (ie, the priority remains unchanged). Since the minimum remaining time of the data packet buffered in the logical channel B is 0.1 ms within 0 ms-0.2 ms, the priority of the logical channel B is updated from the original value 2 to 1.

After the update, the terminal device uses the LCP process according to the priority of the updated logical channel AD, first allocates resources for the data packets buffered in the logical channels A and B, and then allocates resources for the data packets buffered in the logical channel C. Finally, resources are allocated for the data packets buffered in the logical channel D.

That is to say, the minimum remaining time of the data packet buffered in the logical channel B of the terminal device temporarily increases the priority level of the logical channel B, so that the logical channel B has the same priority as the logical channel A, and therefore, the logical channel B and Packets buffered in logical channel A have the same opportunity to be scheduled. Therefore, in the case that the uplink resources are limited, the terminal device allocates uplink resources preferentially for the data packets buffered in the logical channel A, and the data packets with less remaining time in the logical channel B cannot be allocated resources in time.

Example 4: The terminal device determines a priority delta value of each logical channel according to the remaining time of the data packet buffered by each of the M logical channels, and according to the priority offset of the M logical channels The value updates the priority of the M logical channels, and the M logical channels are logical channels that buffer N data packets. Then, according to the priority of the updated M logical channels, the LCP process is used to allocate uplink resources for K data packets.

In this example, the terminal device can determine the priority offset value of each logical channel based on different mapping rules according to the remaining time of the data packet buffered by each logical channel.

For example, the terminal device may determine the priority offset value based on a mapping relationship between a minimum remaining time of the buffered data packet in the logical channel and a priority offset value of the logical channel.

Exemplarily, the mapping relationship between the minimum remaining time of the data packet buffered in the logical channel and the priority offset value of the logical channel is as follows: if the minimum remaining time of the buffered data packet in the logical channel is within 0ms-0.2ms , the priority offset value is Δ1; if the minimum remaining time of the buffered data packet in the logical channel is within 0.2ms-0.5ms, the priority offset value is Δ2; if the logical channel buffers the data packet The minimum residual time is 0.5ms-1.0ms, then the priority offset value is Δ3; if the minimum remaining time of the buffered data packet in the logical channel is greater than 1.0ms, the priority offset value is Δ4.

For example, the smaller the value of the priority of the logical channel, the higher the priority level of the logical channel, and the priority of the value 1 indicates the highest priority, and the smaller the minimum remaining time of the packet, the priority of the logical channel. The higher the rule is, for example, based on the rule, Δ1>Δ2>Δ3>Δ4 can be set. After the terminal device determines that the priority offset value of the logical channel is Δj (1≤j≤4, j is an integer), the priority of the logical channel may be updated to max{m, p-Δj}, where max To take the maximum value function, m is an integer greater than or equal to 1, m represents the highest priority level to which the logical channel is allowed to be dynamically adjusted, and p represents the original priority of the logical channel. The value of m may be predefined by the protocol, or may be configured by the network device to the terminal device by using a system message or an RRC message.

Illustratively, based on the example shown in FIG. 4, it is assumed that Δ1=3, Δ2=2, Δ3=1, Δ4=0, m=1. According to the first mapping relationship listed in the fourth example, the minimum remaining time of the data packet buffered in the logical channel A and the logical channel B is 0.1 ms, and the priority offset value of the logical channel A and the logical channel B is 3. Then, the priority of the logical channel A is still 1 after updating (ie, max{1, 1-3}), and the priority of the logical channel B is also updated after 1 (ie, max{1, 2-3}). The minimum remaining time of the buffered data packet in the logical channel C is 0.5 ms, the priority offset value of the logical channel C is 1, and the priority of the logical channel C is updated to 2 (ie, max{1,3-1}) . The minimum remaining time of the data packet buffered in the logical channel D is 0.6 ms, the priority offset value of the logical channel D is 1, and the priority of the logical channel D is updated to 3 (ie, max{1,4-1}) .

It can be seen that the priority levels of the logical channels B, C, and D are increased by one level according to the minimum remaining time of the buffered data packets. In order to enable the data packets buffered in the logical channels B, C, and D to obtain uplink resource allocation to a certain extent in advance.

Optionally, if the original priority level of the logical channel is not lower than the priority level indicated by m, the terminal device maintains the original priority of the logical channel, and does not perform dynamic adjustment. For example, when m=2, since the priorities of logical channel A and logical channel B are not lower than the priority of the logical channel with priority 2, the terminal device does not adjust the priorities of logical channel A and logical channel B. Only the priorities of logical channel C and logical channel D are adjusted.

Optionally, the terminal device may also determine the priority offset based on a mapping relationship between the total data volume of the data packet whose remaining time in the logical channel is less than or equal to the third threshold value and the priority offset value of the logical channel. Move the value. The unit of the data volume of the data packet may be kilobytes/byte/bit (kilobyte/byte/bit), which is not limited thereto.

Exemplarily, assuming that the mapping between the total data amount of the data packet whose remaining time of the logical channel is less than or equal to the third threshold value and the priority value of the logical channel is: if the remaining of the buffer in the logical channel If the total data volume of the data packet whose time is less than or equal to the third threshold value is within 0-200 bytes, the priority offset value is Δ5; if the remaining time of the buffer in the logical channel is less than or equal to the third threshold value The total data volume of the data packet is within 200-500 bytes, then the priority offset value is Δ6; if the remaining time of the buffer in the logical channel is less than or equal to the third threshold, the total data volume of the data packet is 500. Within -1000 bytes, the priority offset value is Δ7; if the total data amount of the data packet with the remaining time of the buffer in the logical channel less than or equal to the third threshold is greater than 1000 bytes, the priority is biased The shift value is Δ8.

For example, the smaller the value of the priority of the logical channel, the higher the priority level of the logical channel, and the priority of the value 1 indicates the highest priority, and the remaining time of the buffer in the logical channel is less than or equal to the third threshold. The larger the total data amount of the data packet of the value, the higher the priority of the logical channel is, for example, based on the rule, Δ5 < Δ6 < Δ7 < Δ8 can be set. After the terminal device determines that the priority offset value of the logical channel is Δi (5 ≤ i ≤ 8, i is an integer), the priority of the logical channel may be updated to max{n, p-Δi}, where n For an integer greater than or equal to 1, n represents the highest priority level to which the logical channel is allowed to be dynamically adjusted. p denotes the original priority of the logical channel. The value of n may be predefined by the protocol, or may be configured by the network device to the terminal device by using a system message or an RRC message.

Illustratively, based on the example shown in FIG. 4, it is assumed that Δ5=0, Δ6=1, Δ7=2, Δ8=3, n=1, and the third threshold value is 0.3 ms. Taking the data volume of the data packets P1-P9 as 200 bytes as an example, according to the second mapping relationship listed in the fourth example, the total data volume of the data packet with the remaining time of the logical channel A being less than or equal to 0.3 is 800. Byte, then the logical channel A has a priority offset of 2. Then the priority of logical channel A is still 1 after updating (ie max{1, 1-2}). The total data amount of the data packet whose logical time remaining in the logical channel B is less than or equal to 0.3 is 400 bytes, the priority offset value of the logical channel B is 1, and the priority of the logical channel B is updated to 1 (ie, max) {1,2-1}). If the total data volume of the data packet with the remaining time of the buffer in the logical channel C is less than or equal to 0.3 is 200 bytes, the priority value of the logical channel C is 0, and the priority of the logical channel C is still 3 after the update. Max{1,3-0}). The total data amount of the data packet with the remaining time of the buffer in the logical channel D being less than or equal to 0.3 is 0 bytes, the priority offset value of the logical channel D is 0, and the priority of the logical channel D is still 4 after the update (ie, Max{1,4-0}).

It can be seen that the priority level of the logical channel B is increased by one level according to the total data amount of the data packet whose remaining time buffered in the logical channel is less than or equal to the third threshold value. In order to enable the data packet buffered in the logical channel B to obtain the uplink resource allocation to a certain extent in advance.

Optionally, if the original priority level of the logical channel is not lower than the priority level indicated by n, the terminal device maintains the original priority of the logical channel, and does not perform dynamic adjustment. For example, when n=2, since the priorities of logical channel A and logical channel B are not lower than the priority of the logical channel with priority 2, the terminal device does not adjust the priorities of logical channel A and logical channel B. Only the priorities of logical channel C and logical channel D are adjusted.

In this example, the network device may set the foregoing mapping relationship for the terminal device by using a system message or a dedicated RRC message, and the number of priority offset values, the size relationship between each priority offset value, and the priority offset The setting of the specific value of the value, and the algorithm or rule for updating the priority of the logical channel according to the priority offset value may be set according to the setting rule of the priority of the logical channel and the remaining time of the data packet in the actual implementation process. This application is not limited.

It is worth noting that the schemes in Example 3 and Example 4 are based on the remaining time of the buffered data packets in the logical channel, and the priority of the logical channel is updated. Then the update time for the logical channel priority can be set based on the needs of the actual instance. For example, the terminal device may update the priority of the logical channel according to the minimum remaining time of the currently buffered data packet when the LCP process is executed after each time the uplink resource is acquired. Or, when the terminal device does not acquire the uplink resource, or does not perform the LCP process, the priority of each logical channel of the terminal device may be maintained as a priority configured by the network device through the RRC message, and when the terminal device performs the LCP process, according to the The minimum remaining time of the currently buffered data packet, temporarily adjusting the priority of the logical channel. Alternatively, the terminal device may also periodically update the priority of each logical channel. For example, it is updated every 1ms, or every transmission time interval (TTI) is updated once. In this regard, this application does not limit.

Example 5: The terminal device adopts a logical channel priority LCP process according to the total data amount of the data packet whose remaining time in each of the M logical channels is less than or equal to the preset first threshold value, and is K. The data packets are allocated uplink resources.

Exemplarily, after the terminal device counts the total data amount of the data packet buffered in each logical channel that is less than or equal to the first threshold value, the PBR value of the corresponding logical channel may be modified according to the total amount of data. Among them, the PBR value limits the maximum amount of resources allowed to be allocated for a logical channel during each LCP.

The terminal device may directly modify the PBR value of the logical channel to the corresponding total data amount, or superimpose the corresponding total data amount on the original PBR value of the logical channel. So that the modified PBR value is greater than or equal to the corresponding total data amount. Therefore, when the terminal device performs the LCP process according to the modified PBR value of each logical channel, when the uplink resource is sufficient, the uplink resource allocation can be obtained for the data packet whose remaining time in the logical channel is less than the first threshold. Avoiding the limitation of the PBR value, the data packet with a small remaining time in the logical channel cannot be allocated uplink resources. Thereby reducing the ratio of timeout packets buffered in each logical channel.

Alternatively, the terminal device may also predefine a new parameter, which indicates the amount of resources that the terminal device is allowed to continue to allocate after the resource amount of the uplink resource allocated for the data packet in the logical channel satisfies the corresponding PBR condition in the process of performing the LCP. . The terminal device can set a new parameter of the corresponding logical channel according to the total amount of data, and perform an LCP process according to the new parameter, the PBR value and the priority of each logical channel, so as to ensure that when the uplink resource is sufficient, the terminal device is When the uplink data is allocated to the data packet buffered in each logical channel, even if the PBR condition of the logical channel has been met, the terminal device may continue to allocate less time for the resource that is not allocated in the logical channel according to the corresponding new parameter. A threshold packet allocates uplink resources. It is avoided that due to the limitation of the PBR value, some packets with less remaining time in the logical channel cannot obtain uplink resource allocation, thereby reducing the ratio of timeout packets buffered in each logical channel.

Example 6: The terminal device may adopt a manner of adding the logical channel priority in Example 3 or Example 4, and a method of adding the resource amount of the uplink resource allowed to allocate the data packet in the logical channel in Example 5, K packets are allocated uplink resources. That is, the terminal device updates the priority of the logical channel according to the manner described in Example 3 or Example 4, and increases the maximum amount of resources allowed to be allocated for the logical channel according to the manner described in Example 5, and then according to the priority of the updated logical channel. Level and maximum resources, using the LCP process to allocate uplink resources for K packets.

It should be noted that in the above modes three, four, and six, M ≥ 1, and M is an integer. That is, N data packets can be buffered in the same logical channel (M=1), or the buffers can all be in different logical channels (M>1).

When M=1, the terminal device may only update the priority of the logical channel, and perform an LCP procedure according to the priority of the updated logical channel to perform uplink resource allocation. Alternatively, the terminal device may perform the uplink resource allocation according to the maximum allowed resource amount of the logical channel without performing the priority update manner of the logical channel provided by the present application.

When M>1, the terminal device may update the priority of each logical channel according to the priority update manner of the logical channel provided by the application, to reorder the M logical channels, and according to the priority of the updated logical channel. The level and the maximum amount of resources allowed to perform the LCP process for uplink resource allocation.

It should also be noted that the priority examples listed in the above examples are those in which the value of the priority is smaller, the priority level is higher, and the priority value of 1 indicates the priority of the highest level. However, the application does not limit the setting rules of the priority, and may be set according to the actual implementation requirements, and the application is not listed one by one.

In addition to the six examples listed above, uplink resource allocation based on the remaining time of the data packet may be implemented in other manners, which are not enumerated here. The above six examples are only optional ways to implement uplink resource allocation according to the remaining time of the data packet, and are not all implemented.

Optionally, the network device may further determine, by the network device, a second threshold, where the K data packets are data packets in the N data packets whose remaining time is less than or equal to the preset second threshold.

When K<N, if the terminal device allocates uplink resources for K data packets, the uplink resources still have remaining. According to FIG. 3, as shown in FIG. 5, the method further includes:

Step 304: The terminal device uses an LCP process to allocate the remaining uplink resources in the uplink resource for at least one of the remaining data packets.

In the present application, the terminal device may further divide the N data packets into two parts, the first part is a data packet whose remaining time is less than or equal to the second threshold value, and the second part is the data whose remaining time is greater than the second threshold value. package. The terminal device first allocates uplink resources for the first part of the data packet in the manner mentioned in step 302. Then, if there is any remaining uplink resources, the uplink resource is allocated to at least one data packet in the second part according to a conventional LCP procedure.

For example, based on the example shown in FIG. 4, assuming that the second threshold is 0.2 ms, the first partial data packet determined by the terminal device is data packets P1, P5, P6, and P2, and the second partial data packet is data packet P3. , P4, P7, P8 and P9. The terminal device first allocates uplink resources for the data packets P1, P5, P6, and P2 in the manner mentioned in step 302. When the uplink resources are allocated in the data packets P1, P5, P6, and P2, and the uplink resources are still remaining, the uplink resources are allocated to the data packets P3, P4, P7, P8, and P9 according to the conventional LCP process.

Further, the foregoing step 303 may specifically be:

Step 303a: The terminal device sends the K data packets and the remaining one of the N data packets to the network device on the uplink resource.

The value indicates that the first threshold value, the second threshold value, and the third threshold value mentioned above may be the same threshold value, or may be equal to three threshold values, or Three equal thresholds. The network device can configure various thresholds for the terminal device through predefined messages, system messages, or dedicated RRC messages. In this regard, the application is not limited.

The foregoing provides a description of the solution provided by the present application from the perspective of interaction between the various network elements. It can be understood that, in order to implement the above functions, the terminal device includes corresponding hardware structures and/or software modules for executing the respective functions. Those skilled in the art will readily appreciate that the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.

FIG. 6 is a schematic structural diagram of a communication device provided by the present application. The communication device may be a function module integrated on the terminal device, or may be an external device connected to the terminal device. When the communication device is in operation, the terminal device can be caused to implement the data transmission method described in the above FIGS. 3-5. The communication device includes:

The receiving unit 601 is configured to receive uplink grant information sent by the network device, where the uplink grant information is used to indicate an uplink resource that is allocated to the communications device.

The allocating unit 602 is configured to allocate the uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, where N≥K≥1, where K and N are integers.

The sending unit 603 is configured to send the K data packets to the network device on the uplink resource.

Optionally, the allocating unit 602 is configured to allocate the uplink resource to the K data packets in sequence according to the remaining time of the N data packets.

Optionally, the allocating unit 602 is configured to determine a priority of each data packet according to a remaining time interval in which the remaining time of each of the N data packets is located, and according to the foregoing, The priority of the N data packets is from high to low, and the uplink resources are allocated to the K data packets in turn.

Optionally, when the remaining time or priority of the multiple data packets in the K data packets are the same, the allocating unit 602 adopts a logical channel priority according to a priority of the logical channel where the multiple data packets are located. The LCP process allocates the uplink resource for the multiple data packets.

Optionally, the allocating unit 602 is configured to update a priority of the M logical channels according to a minimum remaining time of a data packet buffered in each of the M logical channels, and according to the updated The priority of the M logical channels, the logical channel priority LCP process is used to allocate the uplink resources to the K data packets, and the smaller the minimum remaining time, the higher the priority of the logical channels, the M The logical channel is a logical channel for buffering the N data packets, M≥2, and M is an integer.

Optionally, the allocating unit 602 is configured to determine a priority offset value of each logical channel according to a minimum remaining time of a data packet buffered by each of the M logical channels, and according to the The priority offset values of the M logical channels update the priorities of the M logical channels, and according to the updated priorities of the M logical channels, adopt a logical channel priority LCP process, for the K data The M logical channels allocated for the uplink resource are buffers for buffering the N data packets, M≥2, and M is an integer.

Optionally, the allocating unit 602 is configured to adopt logic according to a total data volume of a data packet whose remaining time in each of the M logical channels is less than or equal to a preset first threshold. The channel priority LCP process allocates the uplink resource to the K data packets, where the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.

Optionally, the K data packets are data packets in the N data packets whose remaining time is less than or equal to a preset second threshold, K<N.

The allocating unit 602 is further configured to: if the uplink resource is still remaining after allocating the uplink resource for the K data packets, adopt a logical channel priority LCP process, where the N data packets are The remaining at least one data packet allocates the remaining uplink resources in the uplink resource.

The communication device provided by the present application can perform uplink resource allocation according to the remaining time of the data packet, and ensures that the data packet with less remaining time preferentially obtains resource allocation to a certain extent, thereby reducing the ratio of the timeout data packet.

As shown in FIG. 2, a possible structural diagram of a terminal device provided by the present application includes a processor 201, a transceiver 204, a bus 203, and a memory 202.

The processor 201 can be a central processing unit (CPU), a general-purpose processor 201, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), and an on-site A field programmable gate array (FPGA) or other programmable logic device, transistor logic device, hardware component, or any combination thereof. It is possible to implement or carry out the various illustrative logical blocks, modules and circuits described in connection with the present disclosure. The processor 201 can also be a combination of computing functions, such as one or more microprocessor combinations, a combination of a DSP and a microprocessor, and the like.

The processor 201 transmits and receives signals to and from the network device through the transceiver 204.

The processor 201, the transceiver 204 and the memory 202 are mutually connected by a bus 203; the bus 203 may be a peripheral component interconnect (PCI) bus 203 or an extended industry standard architecture (EISA). Bus 203, etc. The bus 203 can be divided into an address bus 203, a data bus 203, a control bus 203, and the like. For ease of representation, only one thick line is shown in FIG. 2, but it does not mean that there is only one bus 203 or one type of bus 203.

The memory 202 is configured to store program instructions;

The processor 201 is configured to execute the program instruction when the terminal device is running, to control the transceiver 204 to receive uplink authorization information sent by the network device, and according to the N data packets to be sent. Remaining time, allocating uplink resources for K data packets in the N data packets, and controlling the transceiver 204 to send the K data packets to the network device on the uplink resource, where The uplink grant information is used to indicate the uplink resource allocated to the terminal device, where N≥K≥1, and K and N are integers.

Optionally, the processor 201 allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: following the remaining of the N data packets. The order of time is from small to large, and the uplink resources are allocated to the K data packets in turn.

Optionally, the processor 201 allocates uplink resources to the K data packets in the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: according to the N data packets. Determining the priority of each of the data packets in the remaining time interval in which the remaining time of each data packet is located, and sequentially, according to the priority of the N data packets, the K data packets Allocating the uplink resource.

Optionally, when the remaining time or priority of the multiple data packets in the K data packets are the same, the processor 201 adopts a logical channel priority according to a priority of the logical channel where the multiple data packets are located. The LCP process allocates the uplink resource for the multiple data packets.

Optionally, the processor 201 allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: according to each of the M logical channels. Updating a priority of the M logical channels by using a minimum remaining time of the buffered data packet in the logical channel, and adopting a logical channel priority LCP process for the K according to the updated priorities of the M logical channels The data packet allocates the uplink resource, and the lower the minimum remaining time, the higher the priority of the logical channel, the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.

Optionally, the processor 201 allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: according to each of the M logical channels. The minimum remaining time of the logical channel buffered data packet determines a priority offset value of each of the logical channels, and updates a priority of the M logical channels according to a priority offset value of the M logical channels, and And assigning, by using the logical channel priority LCP process, the uplink resource, the M logical channels, to the logic for buffering the N data packets, according to the updated priorities of the M logical channels. Channel, M≥2, M is an integer.

Optionally, the processor 201 allocates uplink resources to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, and specifically includes: according to each of the M logical channels. And the total data volume of the data packet in the logical channel is less than or equal to the preset first threshold value, and the uplink resource is allocated to the K data packets by using a logical channel priority LCP process, where the M The logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.

Optionally, the K data packets are data packets in which all remaining time of the N data packets are less than or equal to a preset second threshold value, K<N; and the processor 201 is further configured to: After allocating the uplink resource for the K data packets, if there is any remaining uplink resource, the logical channel priority LCP process is used to allocate the uplink to at least one of the remaining N data packets. The remaining uplink resources in the resource.

With the terminal device provided by the present application, the uplink resource allocation can be performed according to the remaining time of the data packet, and the data packet with less remaining time is preferentially obtained to the resource allocation, thereby reducing the ratio of the timeout data packet.

In one example, the steps of a method or algorithm described in connection with the present disclosure may be implemented in a hardware, or may be implemented by a processor executing software instructions. The software instructions may be composed of corresponding software modules, which may be stored in a random access memory (RAM), a flash memory, a read only memory (ROM), an erasable programmable read only memory ( Erasable programmable ROM (EPROM), electrically erasable programmable read only memory (EEPROM), registers, hard disk, removable hard disk, compact disk read only (CD-ROM) or any other form of storage medium known in the art. An exemplary storage medium is coupled to the processor to enable the processor to read information from, and write information to, the storage medium. Of course, the storage medium can also be an integral part of the processor. The processor and the storage medium can be located in an ASIC. Additionally, the ASIC can be located in a core network interface device. Of course, the processor and the storage medium may also exist as discrete components in the core network interface device.

In a specific implementation, the present application further provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the data transmission method provided by the application. The storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

The present application also provides a computer program product comprising instructions which, when executed on a computer, cause the computer to perform some or all of the steps of the various embodiments of the data transfer method provided herein.

The present application also provides a chip system including at least one chip capable of implementing some or all of the steps of the embodiments of the data transmission method provided by the present application when the chip system is in operation.

Those skilled in the art will clearly understand that the techniques in this application can be implemented by means of software plus the necessary general hardware platform. Based on such understanding, the technical solutions in the present application may be embodied in the form of software products in essence or in the form of software products, which may be stored in a storage medium such as ROM/RAM, magnetic Discs, optical discs, etc., include instructions for causing a computer device (which may be a personal computer, server, or VPN gateway, etc.) to perform the methods described in various embodiments of the present invention or portions of the embodiments.

The embodiments of the invention described above are not intended to limit the scope of the invention.

Claims (27)

1. A data transmission method, comprising:

   Receiving, by the terminal device, uplink authorization information sent by the network device, where the uplink authorization information is used to indicate an uplink resource allocated to the terminal device;

   The terminal device allocates the uplink resource to K data packets in the N data packets according to the remaining time of the N data packets to be sent, where N≥K≥1, where K and N are integers;

   The terminal device sends the K data packets to the network device on the uplink resource.
2. The method according to claim 1, wherein the terminal device allocates the uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

   The terminal device sequentially allocates the uplink resource to the K data packets according to the remaining time of the N data packets from small to large.
3. The method according to claim 1, wherein the terminal device allocates the uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

   Determining, by the terminal device, a priority of each data packet according to a remaining time interval in which the remaining time of each of the N data packets is located;

   The terminal device sequentially allocates the uplink resource to the K data packets according to a priority of the N data packets from high to low.
4. The method according to claim 2 or 3, wherein when the remaining time or priority of the plurality of data packets in the K data packets are the same, the terminal device follows the logic of the plurality of data packets. The uplink resources are allocated to the plurality of data packets in descending order of priority of the channels.
5. The method according to claim 1, wherein the terminal device allocates the uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

   Updating, by the terminal device, a priority of the M logical channels according to a minimum remaining time of a data packet buffered in each of the M logical channels, where a minimum of the minimum remaining time is a higher priority of the logical channel The M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer;

   And the terminal device allocates the uplink resource to the K data packets by using a logical channel priority LCP process according to the updated priority of the M logical channels.
6. The method according to claim 1, wherein the terminal device allocates the uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

   Determining, by the terminal device, a priority offset value of each logical channel according to a remaining time of a data packet buffered by each of the M logical channels, and according to a priority offset value of the M logical channels Updating a priority of the M logical channels, where the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer;

   And the terminal device allocates the uplink resource to the K data packets by using a logical channel priority LCP process according to the updated priority of the M logical channels.
7. The method according to claim 1, 5 or 6, wherein the terminal device allocates the uplink for K data packets of the N data packets according to remaining time of N data packets to be sent. Resources, including:

   The terminal device adopts a logical channel priority LCP process according to a total data amount of a data packet whose remaining time in each of the M logical channels is less than or equal to a preset first threshold, The K data packets are allocated to the uplink resource, and the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.
8. The method according to any one of claims 1 to 7, wherein the K data packets are data packets in which all remaining time of the N data packets is less than or equal to a preset second threshold value. K<N;

   If the terminal device allocates the uplink resource for the K data packets, the uplink resource still has a remaining, the method further includes:

   The terminal device uses a logical channel priority LCP process to allocate the remaining uplink resources in the uplink resource for at least one of the remaining data packets.
9. A communication device, comprising:

   a receiving unit, configured to receive uplink grant information sent by the network device, where the uplink grant information is used to indicate an uplink resource that is allocated to the communications device;

   An allocating unit, configured to allocate the uplink resource to K data packets in the N data packets according to a remaining time of the N data packets to be sent, where N≥K≥1, where K and N are integers;

   And a sending unit, configured to send the K data packets to the network device on the uplink resource.
10. The communication device according to claim 9, wherein the allocating unit is configured to sequentially allocate the uplink to the K data packets according to an order of remaining time of the N data packets from small to large. Resources.
11. The communication device according to claim 9, wherein the allocating unit is configured to determine each of the data according to a remaining time interval in which the remaining time of each of the N data packets is located The priority of the packet, and the uplink resources are allocated to the K data packets in order according to the priority of the N data packets from high to low.
12. The communication device according to claim 10 or 11, wherein when the remaining time or priority of the plurality of data packets in the K data packets is the same, the allocating unit according to the plurality of data packets The uplink resources are allocated to the plurality of data packets in descending order of priority of the logical channels.
13. The communication device according to claim 9, wherein the allocating unit is configured to update the M logical channels according to a minimum remaining time of a data packet buffered in each of the M logical channels. a priority channel, and according to the updated priority of the M logical channels, a logical channel priority LCP process is used to allocate the uplink resource to the K data packets, where the minimum remaining time is smaller The higher the priority is, the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.
14. The communication device according to claim 9, wherein the allocating unit is configured to determine a priority of each logical channel according to a minimum remaining time of a data packet buffered by each of the M logical channels. a step offset value, and updating a priority of the M logical channels according to a priority offset value of the M logical channels, and adopting a logical channel priority according to the updated priorities of the M logical channels The LCP process allocates the uplink resource to the K data packets, and the M logical channels are logical channels for buffering the N data packets, where M≥2, and M is an integer.
15. The communication device according to claim 9, 13 or 14, wherein the allocating unit is configured to: according to the remaining time of the buffer in each of the M logical channels, being less than or equal to the preset first The total data volume of the data packet of the threshold value is allocated to the K data packets by using a logical channel priority LCP process, where the M logical channels are logical channels for buffering the N data packets. M ≥ 2, M is an integer.
16. The communication device according to any one of claims 9-15, wherein the K data packets are data packets in the N data packets whose remaining time is less than or equal to a preset second threshold value. , K<N;

    The allocating unit is further configured to: if the uplink resource is still allocated after allocating the uplink resource for the K data packets, adopt a logical channel priority LCP process, where the remaining N packets are At least one data packet allocates the remaining uplink resources in the uplink resource.
17. A terminal device, comprising: a processor, a memory, a bus, and a transceiver, wherein the processor is connected to the memory and the transceiver through the bus;

    The memory is configured to store program instructions;

    The processor, when the terminal device is running, executing the program instruction to control the transceiver to receive uplink authorization information sent by the network device, and according to remaining time of N data packets to be sent Allocating an uplink resource for the K data packets of the N data packets, and controlling the transceiver to send the K data packets to the network device on the uplink resource, where the uplink authorization information For indicating the uplink resource allocated to the terminal device, N≥K≥1, and K and N are integers.
18. The terminal device according to claim 17, wherein the processor allocates an uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

    The uplink resources are allocated to the K data packets in order according to the remaining time of the N data packets from small to large.
19. The terminal device according to claim 17, wherein the processor allocates an uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

    Determining a priority of each of the data packets according to a remaining time interval in which the remaining time of each of the N data packets is located, and following a priority of the N data packets from highest to lowest And allocating the uplink resource to the K data packets in sequence.
20. The terminal device according to claim 18 or 19, wherein when the remaining time or priority of the plurality of data packets in the K data packets is the same, the processor follows the plurality of data packets The uplink resources are allocated to the plurality of data packets in descending order of priority of the logical channels.
21. The terminal device according to claim 17, wherein the processor allocates an uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

    Updating the priority of the M logical channels according to a minimum remaining time of the data packets buffered in each of the M logical channels, and adopting a logical channel priority according to the updated priorities of the M logical channels a level LCP process, where the uplink resource is allocated for the K data packets, the lower the minimum remaining time, the higher the priority of the logical channel, and the M logical channels are logical channels for buffering the N data packets. , M≥2, M is an integer.
22. The terminal device according to claim 17, wherein the processor allocates an uplink resource to the K data packets of the N data packets according to the remaining time of the N data packets to be sent, including:

    Determining a priority offset value of each logical channel according to a minimum remaining time of a data packet buffered by each of the M logical channels, and updating the according to a priority offset value of the M logical channels Priority of the M logical channels, and according to the updated priorities of the M logical channels, the logical channel priority LCP process is used to allocate the uplink resources to the K data packets, and the M logical channels are Cache the logical channels of the N data packets, M≥2, and M is an integer.
23. The terminal device according to claim 17, 21 or 22, wherein the processor allocates uplink resources for K data packets in the N data packets according to remaining time of N data packets to be sent. Specifically, including:

    And adopting a logical channel priority LCP process for the K data packets according to a total data volume of a data packet in which each of the M logical channels is less than or equal to a preset first threshold value Allocating the uplink resource, where the M logical channels are logical channels for buffering the N data packets, M≥2, and M is an integer.
24. The terminal device according to any one of claims 17 to 23, wherein the K data packets are data packets in the N data packets whose remaining time is less than or equal to a preset second threshold value. , K<N;

    The processor is further configured to: if the uplink resource is still remaining after allocating the uplink resource for the K data packets, adopt a logical channel priority LCP process, where the remaining one of the N data packets At least one data packet allocates the remaining uplink resources in the uplink resource.
25. A computer storage medium, wherein the computer storage medium stores instructions, and when the instructions are run on a computer, causing the computer to implement the data transmission method according to any one of claims 1-8 .
26. A computer program product, characterized in that it, when run on a computer, causes the computer to perform the method of any one of claims 1-8.
27. An apparatus, comprising: a processor, the processor for coupling with a memory, and reading instructions in the memory and performing the instructions according to any one of claims 1-8 according to the instructions Methods.

Images