CN105338635B

CN105338635B - Service transmission method and equipment

Info

Publication number: CN105338635B
Application number: CN201410384031.1A
Authority: CN
Inventors: 焦斌; 谌丽
Original assignee: China Academy of Telecommunications Technology CATT
Current assignee: China Academy of Telecommunications Technology CATT; Datang Mobile Communications Equipment Co Ltd
Priority date: 2014-08-06
Filing date: 2014-08-06
Publication date: 2020-04-10
Anticipated expiration: 2034-08-06
Also published as: CN105338635A

Abstract

The embodiment of the invention relates to the technical field of wireless communication, in particular to a method and equipment for service transmission, which are used for solving the problem that the waiting time delay of sparse burst service transmission is larger because a network cannot predict the accurate arrival time of the sparse burst service in advance in the prior art. The network side equipment determines the target user equipment for activating the low-delay service; and allocating specific transmission resources for a low-delay service transmission layer of the target user equipment, so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources. The network side equipment of the embodiment of the invention pre-allocates the specific transmission resource for the low delay service transmission layer of the target user equipment for activating the low delay service, thereby shortening the waiting time of the sparse burst service transmission.

Description

Service transmission method and equipment

Technical Field

The present invention relates to the field of wireless communications technologies, and in particular, to a method and a device for service transmission.

Background

In the current LTE (Long Term Evolution) cellular system, in order to control the interference and collision problem of uplink transmission in a cell, a base station allocates orthogonal transmission resources including time division, frequency division, and code division for uplink transmission of different user equipments. The advantage of this is that the utilization rate of uplink transmission resources can be greatly improved. That is, the base station is responsible for allocating uplink transmission resources to the ue, and when uplink data arrives at the ue side, the ue first initiates a scheduling request process to obtain uplink transmission resource allocation, and then the ue can send the uplink data to the base station through the allocated transmission resources.

Before the user equipment transmits actual service data, additional waiting time delay is introduced due to the scheduling request process. For conventional periodic services, the base station may perform semi-persistent scheduling on uplink transmission of the ue according to the estimation of the service arrival time, so as to reduce the waiting time delay of uplink transmission (for example, for voice services, the arrival time of a voice packet conforms to periodicity). However, for sparse bursty services, since the network cannot predict the accurate arrival time of the services in advance, additional waiting time delay is introduced for the transmission of bursty services.

Taking LTE system uplink burst data transmission as an example: after an uplink transmission data packet arrives, the ue obtains uplink resource allocation and restores uplink synchronization through a Scheduling Request process, and usually the shortest SR (Scheduling Request) configuration period is 5ms, which means that the ue experiences a long waiting time delay from the time when the uplink burst data packet arrives at the ue transmission layer to the time when the actual uplink transmission of the data packet is performed.

In summary, at present, the network cannot predict the accurate arrival time of the sparse burst service in advance, so that the waiting time delay of the sparse burst service transmission is relatively large.

Disclosure of Invention

The invention provides a method and equipment for service transmission, which are used for solving the problem that the waiting time delay of sparse burst service transmission is larger because a network cannot predict the accurate arrival time of the sparse burst service in advance in the prior art.

The method for service transmission provided by the embodiment of the invention comprises the following steps:

the network side equipment determines target user equipment for activating the low-delay service;

and the network side equipment allocates specific transmission resources for a low-delay service transmission layer of the target user equipment so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources.

The network side equipment determines the target user equipment for activating the low-delay service; and allocating specific transmission resources for a low-delay service transmission layer of the target user equipment, so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources. The network side equipment of the embodiment of the invention pre-allocates the specific transmission resource for the low delay service transmission layer of the target user equipment for activating the low delay service, thereby shortening the waiting time of the sparse burst service transmission.

Preferably, the specific transmission resource allocated by the network side device to the low latency service transport layer of the target user equipment multiplexes the same time and frequency resources as the transmission resource allocated by the network side device to the common service transport layer of the other user equipment.

Preferably, after the network side device allocates a specific transmission resource to the low latency service transport layer of the target user equipment, the method further includes:

and the network side equipment respectively adjusts the uplink transmission time lead of the low delay service transmission layer and the uplink transmission time lead of the common service transmission layer so as to ensure that the minimum transmission units are kept synchronous when the data of the low delay service transmission layer and the data of the common service transmission layer reach the network side equipment.

and the network side equipment allocates the receiving power larger than that of the common service transmission layer for the low-delay service transmission layer.

Preferably, the frame structure used by the target ue to transmit the low-latency service on the specific transmission resource is different from the frame structure used by the other ues to transmit the common service on the specific transmission resource.

Preferably, the method further comprises:

and after the network side equipment meets the reconfiguration condition, reconfiguring all the specific transmission resources.

and if the target user equipment deactivates the low-delay service, the network side equipment releases the specific transmission resource allocated to the target user equipment.

Preferably, the allocating, by the network side device, a specific transmission resource to the low latency service transport layer of the target ue includes:

if the number of the target user equipment is not larger than the number of the specific transmission resources which can be allocated by the system, the network side equipment allocates completely orthogonal specific transmission resources for different target user equipment; or

If the number of the target user equipment is larger than the number of the specific transmission resources which can be allocated by the system, the network side equipment allocates the specific transmission resources which are allocated to other target user equipment for the target user equipment.

Preferably, the allocating, by the network side device, the specific transmission resource allocated to the other target user equipment for the target user equipment includes:

the network side equipment determines the capacity occupancy rate of each specific transmission resource which is allocated to other target user equipment;

and the network side equipment allocates the specific transmission resource with the lowest capacity occupancy rate to the target user equipment.

Preferably, after the network side device determines the capacity occupancy of each specific transmission resource that has been allocated to other target user devices, before allocating the specific transmission resource with the lowest capacity occupancy to the target user device, the method further includes:

and after the network side equipment determines that the capacity occupancy rate of each specific transmission resource has the specific transmission resource with the capacity occupancy rate not greater than a specific threshold value after the target user equipment is admitted.

the target user equipment activating the low-delay service determines a specific transmission resource aiming at a low-delay service transmission layer and pre-allocated by network side equipment;

and after the low-delay service data packet arrives, the target user equipment sends the low-delay service data packet through the pre-allocated specific transmission resource.

The network side device for service transmission provided by the embodiment of the invention comprises:

the determining module is used for determining target user equipment for activating the low-delay service;

and the allocation module is used for allocating specific transmission resources to the low-delay service transmission layer of the target user equipment so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources.

Preferably, the allocation module is further configured to:

and respectively adjusting the uplink transmission time lead of the low delay service transmission layer and the uplink transmission time lead of the common service transmission layer so as to keep the minimum transmission units synchronous when the data of the low delay service transmission layer and the data of the common service transmission layer reach the network side equipment.

Preferably, the allocation module is further configured to:

and allocating the receiving power of the low-delay service transmission layer to be larger than that of the common service transmission layer.

Preferably, the allocation module is further configured to:

and after the reconfiguration condition is met, reconfiguring all the specific transmission resources.

Preferably, the allocation module is further configured to:

and if the target user equipment deactivates the low-delay service, releasing the specific transmission resource allocated to the target user equipment.

Preferably, the allocation module is specifically configured to:

if the number of the target user equipment is not larger than the number of the specific transmission resources which can be allocated by the system, allocating completely orthogonal specific transmission resources for different target user equipment; or

And if the number of the target user equipment is larger than the number of the specific transmission resources which can be allocated by the system, allocating the specific transmission resources which are allocated to other target user equipment for the target user equipment.

Preferably, the allocation module is specifically configured to:

when the specific transmission resources which are allocated to other target user equipment are allocated to the target user equipment, determining the capacity occupancy rate of each specific transmission resource which is allocated to other target user equipment; and allocating the specific transmission resource with the lowest capacity occupancy rate to the target user equipment.

Preferably, the allocation module is further configured to:

if the specific transmission resource with the capacity occupancy rate not greater than the specific threshold value exists in the capacity occupancy rate of each specific transmission resource after the target user equipment is admitted, allocating the specific transmission resource with the lowest capacity occupancy rate to the target user equipment

The embodiment of the invention provides a target user equipment for service transmission, wherein the target user equipment activates a low-delay service, and comprises:

the processing module is used for determining specific transmission resources which are pre-allocated by the network side equipment and aim at a low-delay service transmission layer;

and the sending module is used for sending the low-delay service data packet through the pre-allocated specific transmission resource after the low-delay service data packet arrives.

The system for service transmission provided by the embodiment of the invention comprises:

the network side equipment is used for determining target user equipment for activating the low-delay service and distributing specific transmission resources for a low-delay service transmission layer of the target user equipment;

the target user equipment for activating the low-delay service is used for determining the specific transmission resource which is pre-allocated by the network side equipment and aims at the transmission layer of the low-delay service; and after the low-delay service data packet arrives, sending the low-delay service data packet through the pre-allocated specific transmission resource.

Drawings

Fig. 1 is a schematic structural diagram of a system for service transmission according to an embodiment of the present invention;

FIG. 2 is a diagram illustrating a three-resource multiplexing method according to an embodiment of the present invention;

FIG. 3 is a diagram illustrating four resource allocations according to an embodiment of the present invention;

FIG. 4 is a diagram illustrating a five-resource reuse according to an embodiment of the present invention;

fig. 5 is a schematic diagram of concurrent transmission of a low delay service and a normal service according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a network-side device in a system for transmitting a seventh service according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a ue in an eight-service transmission system according to an embodiment of the present invention;

fig. 8 is a schematic structural diagram of a network-side device in a system for nine service transmission according to an embodiment of the present invention;

fig. 9 is a schematic structural diagram of a user equipment in a system for ten service transmissions according to an embodiment of the present invention;

fig. 10 is a flowchart illustrating an eleventh service transmission method according to an embodiment of the present invention;

fig. 11 is a flowchart illustrating a method for twelve service transmission according to an embodiment of the present invention;

fig. 12 is a flow chart of a thirteen low-latency service transmission configuration request according to an embodiment of the present invention;

fig. 13 is a flow chart of releasing a fourteen low-delay service transmission configuration according to an embodiment of the present invention;

fig. 14 is a flow chart of a fifteen low-latency traffic reconfiguration according to an embodiment of the present invention;

fig. 15 is a flow chart of a fifteen low-latency traffic reconfiguration according to an embodiment of the present invention.

Detailed Description

The network side equipment determines the target user equipment for activating the low-delay service; and allocating specific transmission resources for a low-delay service transmission layer of the target user equipment, so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources. The network side equipment of the embodiment of the invention pre-allocates specific transmission resources for the low delay service transmission layer of the target user equipment for activating the low delay service, thereby shortening the waiting time of sparse burst service transmission;

furthermore, the embodiment of the invention can also improve the utilization rate of system frequency spectrum resources, is favorable for superposing the support of the transmission function of the low-delay service when the traditional cellular network of an operator supports the traditional service, reduces the upgrading cost of the network of the operator and greatly accelerates the support of the network of the existing operator to the low-delay transmission service.

The embodiments of the present invention will be described in further detail with reference to the drawings attached hereto.

As shown in fig. 1, a system for service transmission according to an embodiment of the present invention includes:

a network side device 10, configured to determine a target user equipment that activates a low latency service; allocating specific transmission resources to a low-delay service transport layer of the target user equipment, so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources;

a target user equipment 11 for activating the low delay service, configured to determine a specific transmission resource for a low delay service transport layer that is pre-allocated by a network side device; and after the low-delay service data packet arrives, sending the low-delay service data packet through the pre-allocated specific transmission resource.

Preferably, in order to improve spectrum utilization efficiency, the specific transmission resource allocated by the network side device to the low latency service transport layer of the target user equipment in the embodiment of the present invention multiplexes the same time and frequency resources as the transmission resource allocated by the network side device to the common service transport layer of the other user equipment.

The "low delay service transport layer" and the "normal service transport layer" are two independent RATs (radio access types), so that the two can be completely independent in terms of frame structure, synchronization scheme, and the like.

For example, the "low-delay service transport layer" may be an asynchronous frame structure similar to 802.11 widely adopted in the existing local area network, or may be a novel short frame structure for the future cellular network; and the 'common service transport layer' may be the existing LTE access network system. The low delay service transmission layer and the common service transmission layer multiplex the same air interface time-frequency resource, and the network side equipment needs to have the capability of demodulating two different types of signals at the same time, so that the user equipment can simultaneously support two access modes of the low delay transmission layer and the common service transmission layer.

In addition to the foregoing manner, the "low latency service transport layer" and the "normal service transport layer" in the embodiment of the present invention may also perform a certain degree of cooperation, including in the aspects of modulation coding scheme design, frame structure and frame synchronization, so that the design complexity of the base station transceiver can be reduced, and the influence of the "low latency service transport layer" on the "normal service transport layer" is reduced.

When transmitting, the low-delay service transmission layer and the common service transmission layer can be completely independent frame structures. That is, the frame structure used by the target ue to transmit the low-latency service on the specific transmission resource is different from the frame structure used by the other ues to transmit the common service on the specific transmission resource.

The following describes in detail that the frame structures of the low latency service transport layer and the normal service transport layer in the embodiment of the present invention are independent from each other, and refer to fig. 2 in particular.

The low-delay service is sparsely transmitted, so that the time-frequency resource proportion actually occupied by the low-delay service transmission layer during transmission is very low. In addition, the low-delay transmission layer can adopt a frame format which is transmitted based on a synchronous mode; frame formats for transmission based on asynchronous approaches may also be employed.

Because the frame structures of the low delay service transmission layer and the common service transmission layer are independent, the network side equipment does not need to coordinate the low delay service transmission layer and the common service transmission layer in any synchronization aspect.

In implementation, after the user equipment activates the low latency service, a low latency service transmission configuration procedure is triggered.

In the configuration process of low-delay service transmission, the network side device allocates specific transmission resources to the low-delay service transmission layer of the target user equipment (the user equipment which activates the active low-delay service).

After the uplink service data packet is delivered from the higher layer of the ue to the transmission layer of the ue, the ue directly sends the uplink service data packet to the network side device through the pre-allocated specific transmission resource, and the specific process may refer to fig. 12.

In implementation, if the target ue deactivates the low latency service, the network side device releases the specific transmission resource allocated to the target ue.

Specifically, after the target user equipment deactivates the low latency service, a low latency service transmission configuration release process is triggered.

In the release process, the network side device releases the specific transmission resource allocated to the target user equipment to the resource pool again for subsequent use by the target user equipment allocated to activate the low-latency transmission configuration, and a specific process may refer to fig. 13.

Since the resources allocated to different target ues may not be orthogonal to each other within the low-latency transport layer, there may be a collision occurring within the low-latency transport layer. In order to reduce the occurrence of collision, the embodiment of the present invention provides three processing manners, which are described below.

In a first manner, the network side device allocates completely orthogonal transmission resources for uplink transmission of different user devices, in this case, specific transmission resources for transmitting low-delay transport layer data by different target user devices satisfy pairwise complete orthogonality, which may be specifically shown in fig. 3.

Specifically, if the number of the target user equipments is not greater than the number of the specific transmission resources that can be allocated by the system, the network side equipment allocates completely orthogonal specific transmission resources for different target user equipments.

In a second way, in implementation, when the total number of the system access target user equipments is greater than the orthogonal specific transmission resource configurable by the system, the network side equipment may select to allocate an already allocated transmission resource for the new target user equipment, which may specifically refer to fig. 4.

Specifically, if the number of the target user equipment is greater than the number of the specific transmission resources that can be allocated by the system, the network side device allocates the specific transmission resources that have been allocated to the other target user equipment to the target user equipment.

In this case, there may be a collision in uplink transmission between target user equipments multiplexing the same orthogonal specific transmission resource, and the network side equipment may multiplex the low-delay orthogonal specific transmission resource for the target user equipment with a low utilization rate of the low-delay transmission resource, so as to reduce the probability of the collision and improve the transmission reliability.

That is to say, the allocating, by the network side device, the specific transmission resource allocated to the other target user equipment for the target user equipment includes:

In implementation, if resources need to be multiplexed, a specific threshold value can be set, so that the collision probability of low-delay services on specific transmission resources can be controlled to a reasonable level by reasonably setting the threshold, and the system performance can also be ensured.

Specifically, if multiplexing is needed, after judging whether the capacity occupancy rate of each specific transmission resource has the specific transmission resource with the capacity occupancy rate not greater than a specific threshold value after receiving the target user equipment, if so, allocating the specific transmission resource for the new target user equipment; otherwise, the allocation of specific transmission resources for the new target user equipment is denied.

In implementation, when the total number of the target user equipments accessed by the system is greater than the system-configurable orthogonal specific transmission resource, the network side equipment may select to allocate a non-orthogonal transmission resource to the new target user equipment, that is, allocate an already allocated transmission resource to the new target user equipment

Specifically, when the network side device allocates non-orthogonal specific transmission resources to different target user devices, the network side device determines a capacity occupancy rate of each specific transmission resource allocated to other target user devices; the capacity occupancy rate of the specific transmission resource required by the target user equipment and the capacity occupancy rate of each specific transmission resource allocate non-orthogonal specific transmission resources for different target user equipments.

In practice, the first and second modes may be used in combination:

1. assuming that the current cell has 10 sets of orthogonal specific transmission resources available for allocation, when the network side device needs to allocate an orthogonal specific transmission resource to a new target user device, it first checks whether there is an unallocated orthogonal specific transmission resource (the utilization rate of the unoccupied orthogonal low-delay transmission resource is 0%), and if so, preferentially allocates the unallocated orthogonal specific transmission resource to the new target user device.

2. If all orthogonal specific transmission resources are already allocated to at least one target user equipment, the network side equipment sorts the capacity occupancy rates of the specific transmission resources.

The method for calculating the capacity occupancy of the specific transmission resource by the network side device is based on the "average interval information of burst traffic", for example, if the "average interval information of burst traffic" of the user equipment 1 is 1 second, and the minimum transmission interval of the system is 1 millisecond, the capacity occupancy of the current target user equipment to the allocated specific transmission resource is 0.1%, and the capacity occupancy of all the target user equipment allocated to the capacity occupancy of the specific transmission resource is added to obtain the capacity occupancy of the specific transmission resource.

3. And after judging whether the specific transmission resources with the capacity occupancy rates not greater than the specific threshold value exist in the capacity occupancy rates of each specific transmission resource for accepting the target user equipment, the network side equipment judges whether the specific transmission resources with the capacity occupancy rates not greater than the specific threshold value exist in the capacity occupancy rates of each specific transmission resource.

In implementation, after the network side device determines to allocate the orthogonal specific transmission resource to the target user equipment, the network side device calculates and stores load information of each orthogonal low-delay transmission resource (i.e. capacity occupancy rate of the orthogonal low-delay transmission resource) in context information of the specific channel recorded in the information of the target user equipment, so as to perform uplink reception and use, and subsequently allocates resource use for access of a new target user equipment (considering whether the resource is occupied by an existing user equipment or not), specifically referring to table 1.

TABLE 1

In implementation, the network side device reconfigures all the specific transmission resources after meeting the reconfiguration condition.

There are many reconfiguration conditions, several of which are listed below.

Under the first condition, when the network side device determines to reconfigure transmission resources or a transmission scheme for some or all target user equipments in the current system, all the specific transmission resources may be reconfigured, which may specifically refer to fig. 14.

For example, it can be ensured by reallocation that each specific transmission resource does not exceed a specific threshold, for example, the occupancy rates of resources 1 and 2 are both 0.5%, and a user equipment 3 with a resource occupancy rate of 1% is provided in the prior art, assuming that if the dedicated threshold for each dedicated resource is 1%, the user equipment 3 cannot be admitted if not adjusted, because the threshold is exceeded whether the user equipment 3 is multiplexed to the resource 1 or the resource 2, but if the services on the prior numbers 1 and 2 are multiplexed to the resource 1, the number 1 becomes 1%, so that the resource 2 can be admitted to the user equipment 3, and the occupancy of the resource 2 becomes 1% after admission. So reconfiguration is required to complete this process.

Second, if the number of target user equipments activating the low delay service is continuously reduced along with the current cell, for example, the target user equipment moves out of the coverage of the current cell or the target user equipment deactivates the low delay service, all the specific transmission resources may be reconfigured, which may be specifically shown in fig. 15.

For example, there is currently no specific transmission resource allocated to the target ue, and the allocated specific transmission resource is multiplexed by a plurality of ues.

Preferably, in order to control the influence of the low-latency transport layer on the normal transport layer service transmission, the network side device may control, in an admission control and load control manner, the proportion of the low-latency transport layer sparse packet transmission occupying the entire low-latency transport resource (e.g., the proportion of the sparse resource occupying the entire transport resource is 1%). In order to ensure that reliable transmission of the low-latency transport layer can be guaranteed preferentially in the event of a collision in transmission between the low-latency transport layer and the normal service transport layer, a preferred method is to allocate a higher power level to the low-latency transport layer, that is, the network side device allocates a higher receiving power to the low-latency transport layer than to the normal service transport layer (see fig. 5 in particular).

In fig. 5, in order to ensure that the network-side device can successfully solve the low delay service when the low delay service transmission and the normal service transmission collide with each other, the network-side device allocates different receiving power levels to the low delay service transmission and the normal service transmission, so as to achieve the purpose that the receiving power of the base station for the low delay service at the time of the low delay service transmission is higher than the normal service by a certain threshold, thereby ensuring the preferential reception of the low delay service. The network side equipment can inform the receiving power level expected by the network side equipment when the low-delay activation low-delay transmission configuration occurs or the low-delay transmission configuration updating occurs in a low-delay transmission resource configuration parameter mode.

In addition to the above manner, it can also be ensured that the network side device can still correctly receive the data of the low delay transport layer and the data of the ordinary service transport layer at the same time by using the non-orthogonal enhanced interference cancellation and enhanced transceiver technology under the condition that the service transmissions of the low delay transport layer and the ordinary service transport layer collide.

As shown in fig. 6, the network side device in the system for transmitting the seventh service according to the embodiment of the present invention includes: a determination module 700 and an assignment module 710.

A determining module 700, configured to determine a target ue that activates a low latency service;

an allocating module 710, configured to allocate a specific transmission resource to a low latency service transport layer of the target user equipment, so that the target user equipment transmits the low latency service through the pre-allocated specific transmission resource.

When transmitting, the low-delay service transmission layer and the common service transmission layer can be completely independent frame structures. That is, the frame structure used by the target ue to transmit the low-latency service on the specific transmission resource is different from the frame structure used by the other ues to transmit the common service on the specific transmission resource. The following are described separately.

Preferably, the allocating module 710 is further configured to:

Preferably, the allocating module 710 is specifically configured to:

Preferably, the allocating module 710 is further configured to:

As shown in fig. 7, in a user equipment in an eight service transmission system according to an embodiment of the present invention, the target user equipment activates a low latency service, and the target user equipment includes:

a processing module 800, configured to determine a specific transmission resource, which is pre-allocated by a network side device and is for a low latency service transport layer;

a sending module 810, configured to send the low-latency service data packet through the pre-allocated specific transmission resource after the low-latency service data packet arrives.

As shown in fig. 8, a network side device in a system for nine service transmissions according to an embodiment of the present invention includes:

a processor 900, configured to determine a target ue activating a low latency service, and allocate a specific transmission resource to a low latency service transport layer of the target ue through a transceiver 910, so that the target ue transmits through the specific transmission resource allocated in advance when there is a low latency service;

a transceiver 910 for receiving and transmitting data under the control of the processor 900.

Preferably, the processor 900 is further configured to:

Preferably, the processor 900 is specifically configured to:

Preferably, the processor 900 is further configured to:

Where in fig. 8, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors, represented by processor 900, and memory, represented by memory 920. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 910 may be a number of elements, including a transmitter and a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.

The processor 900 is responsible for managing the bus architecture and general processing, and the memory 920 may store data used by the processor 900 in performing operations.

As shown in fig. 9, in a system for transmitting ten services according to an embodiment of the present invention, in order to activate a low latency service, a user equipment includes:

a processor 1000, configured to determine, by a transceiver 1010, a specific transmission resource, which is pre-allocated by a network-side device and is targeted at a low-latency service transmission layer, and after a low-latency service data packet arrives, send, by the transceiver 1010, the low-latency service data packet on the pre-allocated specific transmission resource;

through the transceiver 1010 for receiving and transmitting data under the control of the processor 1000.

Where in fig. 10, the bus architecture may include any number of interconnected buses and bridges, with various circuits being linked together, particularly one or more processors represented by processor 1000 and memory represented by memory 1020. The bus architecture may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface. The transceiver 1010 may be a number of elements including a transmitter and a transceiver providing a means for communicating with various other apparatus over a transmission medium. The user interface 1030 may also be an interface capable of interfacing with a desired device for different user devices, including but not limited to a keypad, display, speaker, microphone, joystick, etc.

The processor 1000 is responsible for managing the bus architecture and general processing, and the memory 1020 may store data used by the processor 1000 in performing operations.

Based on the same inventive concept, the embodiment of the present invention further provides a method for service transmission, and since the device corresponding to the method is a network side device in the system for service transmission in the embodiment of the present invention, and the principle of the method for solving the problem is similar to that of the device, the method can be implemented by referring to the implementation of the device, and repeated details are not repeated.

As shown in fig. 10, a method for eleven service transmissions according to an embodiment of the present invention includes:

step 1100, a network side device determines a target user device for activating a low-delay service;

step 1110, the network side device allocates a specific transmission resource to the low latency service transport layer of the target user equipment, so that the target user equipment transmits the low latency service through the pre-allocated specific transmission resource.

Preferably, the method further comprises:

Based on the same inventive concept, the embodiment of the present invention further provides a method for service transmission, and since a device corresponding to the method is a target user device in a system for service transmission in the embodiment of the present invention, and a principle of the method for solving the problem is similar to that of the device, the method can be implemented by referring to the implementation of the device, and repeated details are not repeated.

As shown in fig. 11, the method for twelve service transmission according to the embodiment of the present invention includes:

step 1200, the target ue activating the low latency service determines a specific transmission resource for a low latency service transport layer pre-allocated by the network side device;

step 1210, after the low delay service data packet arrives, the target ue sends the low delay service data packet through the pre-allocated specific transmission resource.

As shown in fig. 12, a flow of a thirteenth low latency service transmission configuration request according to an embodiment of the present invention includes:

step 1300: the target user equipment 1 activating the low-delay service initiates a low-delay service transmission configuration request process to the network side equipment.

Preferably, the reporting of the service information of the target user equipment 1 by the target user equipment 1 in the configuration request process specifically includes: user equipment mobility state, bursty traffic averaging interval, etc.

Step 1301: the network side device stores the context information of the target ue 1, including the mobility state of the target ue and the average interval of bursty traffic, and stores the information of the specific transmission resource allocated to the target ue 1 in the context of low latency configuration of the target ue 1, so as to calculate the capacity of each dedicated resource, see table 2.

User equipment identification	Moving state	Burst traffic mean interval information	Transmission resource identification
				User equipment 1	Fixing	1 second	Transmission resource 1

TABLE 2

Step 1302: the network side device configures the identifier of the specific transmission resource and the uplink expected received power parameter for the target user equipment 1.

The target user equipment 1 calculates the actual uplink transmit power from the path loss estimate (the path loss can be estimated from measurements on downlink reference symbols) and the uplink desired received power.

The network side device may also configure the modulation and coding scheme information used for uplink transmission for the target user equipment 1.

Step 1303: and 3, after the uplink low-delay service data packet reaches the transmission layer, the target user equipment 1 performs uplink transmission on the pre-allocated specific transmission resource by adopting the uplink transmission power calculated in the step 3.

If the target user equipment 1 obtains the modulation and coding configuration information in step 3, the target user equipment 1 performs coding modulation on the service data according to the modulation and coding mode configured by the base station, otherwise, the target user equipment 1 may perform coding modulation on the service data by adopting a default modulation and coding mode.

As shown in fig. 13, a flow of releasing the fourteen low-delay service transmission configurations in the embodiment of the present invention includes:

step 1400: and after the low-delay service is deactivated, the target user equipment activating the low-delay service sends a low-delay transmission configuration release request message to the network side equipment to trigger the network side equipment to release the low-delay transmission channel resources.

And 1401, assuming that the target ue is currently allocated with the low-latency transmission resource 1, the network side device releases the context of the low-latency configuration for the target ue 1.

The network side device deletes the target ue from the occupied list of the low latency transmission resource 1, and recalculates the capacity of the low latency transmission resource 1, see table 3.

TABLE 3

Step 1402, the network side device sends a low-latency service transmission configuration release completion message to the target user equipment 1.

As shown in fig. 14, a fifteen embodiment of the present invention configures a low-latency traffic transmission reconfiguration process.

With the increasing of target user equipment for activating the low-delay transmission service in the system, after the number of the activated low-delay services in the system is larger than the number of the specific transmission resources allocable by the current cell, the network side equipment can improve the number of the low-delay transmission services receivable by the system in a mode of multiplexing the orthogonal low-delay transmission resources by part of the target user equipment. In this process, the system determines the pairing relationship of the target user equipment for resource multiplexing according to the actual transmission probability of the low-latency service of each target user equipment, so that the network side equipment needs to adjust the orthogonal low-latency transmission resource occupied by the target user equipment through the low-latency service transmission resource/low-latency transmission mode reconfiguration process.

Step 1500: after detecting that the number of low-delay service activation is greater than the maximum number of orthogonal transmission resources (i.e. the number of assignable specific transmission resources) of the current cell, the network side device triggers the reconfiguration process of the low-delay service transmission resources.

Step 1501: the network side equipment realizes the admission of the newly accessed target user equipment by distributing the multiplexed orthogonal resources for the newly accessed target user equipment which activates the low-delay service or redistributing the non-orthogonal multiple access resources to the target user equipment in the system.

Step 1502: and the network side equipment configures the low-delay service low-delay transmission resource identifier/low-delay transmission mode indication configuration and the uplink expected received power parameter for the target user equipment.

The target ue calculates the actual uplink transmit power based on the path loss estimate (path loss may be estimated based on measurements on downlink reference symbols) and the uplink desired received power.

Step 1503: and the target user equipment updates the self-stored low-delay uplink transmission parameters according to the updated low-delay transmission configuration message received in the step 3. And sending a configuration response message to the network side equipment after the configuration is effective.

It should be noted that the above case of triggering reconfiguration is only an example, and other cases that can trigger reconfiguration of network side equipment are also applicable to the embodiment of the present invention.

As shown in fig. 15, a fifteen embodiment of the present invention configures a low-latency traffic transmission reconfiguration process.

With the dynamic release of the low-latency transmission service by the target ue activating the low-latency service, there may be a case where some specific transmission resources are not occupied by the target ue and other specific transmission resources are provided for multiplexing the low-latency transmission services of multiple ues. Once the network side device detects the situation, the network side device may re-balance the loads of the target user equipments configured on all the specific transmission resources in all the systems through the low-latency service transmission resource/low-latency transmission mode reconfiguration process, and reduce the collision probability by reducing the number of the target user equipments multiplexed by each path of orthogonal low-latency transmission resources.

Step 1600: and the network side equipment detects that the low-delay service orthogonal transmission resource is unbalanced in occupation and triggers a low-delay service transmission resource reconfiguration process.

Step 1601: the network side equipment improves the reliability of user equipment transmission by reallocating orthogonal resources for target user equipment accessed in the system.

Step 1602: and the network side equipment configures the low-delay service low-delay transmission resource identifier/low-delay transmission mode indication configuration and the uplink expected received power parameter for the target user equipment.

Step 1603: and the target user equipment updates the self-stored low-delay uplink transmission parameters according to the updated low-delay transmission configuration message received in the step 3. And sending a configuration response message to the network side equipment after the configuration is effective.

From the above, it can be seen that: the network side equipment determines the target user equipment for activating the low-delay service; and allocating specific transmission resources for a low-delay service transmission layer of the target user equipment, so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources. The network side equipment of the embodiment of the invention pre-allocates the specific transmission resource for the low delay service transmission layer of the target user equipment for activating the low delay service, thereby shortening the waiting time of the sparse burst service transmission.

As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A method for traffic transmission, the method comprising:

the network side equipment allocates specific transmission resources for a low delay service transmission layer of the target user equipment so that the target user equipment transmits the low delay service through the pre-allocated specific transmission resources, wherein the low delay service transmission layer and a common service transmission layer multiplex the same air interface time-frequency resources, and the frame structures of the low delay service transmission layer and the common service transmission layer are mutually independent;

wherein, the allocating, by the network side device, a specific transmission resource to the low latency service transport layer of the target user equipment includes:

2. The method of claim 1, wherein the specific transmission resources allocated by the network-side device to the low-latency service transport layer of the target ue multiplex the same time and frequency resources as the transmission resources allocated by the network-side device to the normal service transport layer of other ues.

3. The method of claim 2, wherein after the network-side device allocates specific transmission resources for the low-latency service transport layer of the target ue, the method further comprises:

4. The method of claim 2, wherein after the network-side device allocates specific transmission resources for the low-latency service transport layer of the target ue, the method further comprises:

5. The method of claim 2, wherein the frame structure used by the target user equipment to transmit low-delay traffic on the specific transmission resource is different from a frame structure used by the other user equipment to transmit normal traffic on the specific transmission resource.

6. The method of claim 2, further comprising:

7. The method of claim 1, wherein after the network-side device allocates specific transmission resources for the low-latency service transport layer of the target user equipment, the method further comprises:

8. The method of claim 1, wherein the allocating, by the network-side device, the specific transmission resource allocated to the other target user devices for the target user device comprises:

9. The method of claim 8, wherein after the network-side device determines the capacity occupancy of each specific transmission resource that has been allocated to other target user devices, and before allocating the specific transmission resource with the lowest capacity occupancy for the target user device, further comprising:

10. A method for traffic transmission, the method comprising:

after a low-delay service data packet arrives, the target user equipment sends the low-delay service data packet through the pre-allocated specific transmission resource, wherein the low-delay service transmission layer and the common service transmission layer multiplex the same air interface time-frequency resource, and the frame structures of the low-delay service transmission layer and the common service transmission layer are mutually independent;

wherein, after a low-delay service data packet arrives, the target user equipment sends the low-delay service data packet through the pre-allocated specific transmission resource, and the method includes:

if the number of the target user equipment is not larger than the number of the specific transmission resources which can be allocated by the system, the target user equipment sends the low-delay service data packet through the completely orthogonal specific transmission resources allocated by the network side equipment after the low-delay service data packet arrives; or

If the number of the target user equipment is larger than the number of the specific transmission resources which can be allocated by the system, after the low-delay service data packet arrives, the target user equipment sends the low-delay service data packet through the specific transmission resources which are allocated to other target user equipment and are allocated by the network side equipment.

11. A network side device for service transmission, wherein the network side device comprises:

the allocation module is used for allocating specific transmission resources to a low-delay service transmission layer of the target user equipment so that the target user equipment transmits the low-delay service through the pre-allocated specific transmission resources, wherein the low-delay service transmission layer and a common service transmission layer multiplex the same air interface time-frequency resources, and the frame structures of the low-delay service transmission layer and the common service transmission layer are mutually independent;

wherein the allocation module is specifically configured to:

12. The network-side device of claim 11, wherein the specific transmission resource allocated by the network-side device to the low-latency service transport layer of the target ue multiplexes the same time and frequency resources as the transmission resource allocated by the network-side device to the normal service transport layer of another ue.

13. The network-side device of claim 12, wherein the assignment module is further configured to:

14. The network-side device of claim 12, wherein the assignment module is further configured to:

15. The network-side device of claim 12, wherein the frame structure used by the target ue to transmit low-delay traffic on the specific transmission resource is different from a frame structure used by the other ues to transmit normal traffic on the specific transmission resource.

16. The network-side device of claim 12, wherein the assignment module is further configured to:

17. The network-side device of claim 11, wherein the assignment module is further configured to:

18. The network-side device of claim 11, wherein the assignment module is specifically configured to:

19. The network-side device of claim 18, wherein the assignment module is further configured to:

and if the specific transmission resources with the capacity occupancy rates not greater than the specific threshold value exist in the capacity occupancy rates of each specific transmission resource after the target user equipment is admitted, allocating the specific transmission resources with the lowest capacity occupancy rates to the target user equipment.

20. A target user equipment for service delivery, wherein the target user equipment activates a low latency service, the target user equipment comprising:

a sending module, configured to send a low-latency service data packet through the pre-allocated specific transmission resource after the low-latency service data packet arrives, where a low-latency service transport layer and a common service transport layer multiplex the same air interface time-frequency resource, and the frame structures of the low-latency service transport layer and the common service transport layer are independent of each other;

wherein the sending module is specifically configured to:

if the number of the target user equipment is not larger than the number of the specific transmission resources which can be allocated by the system, after the low-delay service data packet arrives, the low-delay service data packet is sent through the completely orthogonal specific transmission resources allocated by the network side equipment; or

If the number of the target user equipment is larger than the number of the specific transmission resources which can be allocated by the system, after the low-delay service data packet arrives, the low-delay service data packet is sent through the specific transmission resources which are allocated to other target user equipment and are allocated by the network side equipment.