CN109428694B - Method and device for media access control layer multiplexing - Google Patents

Abstract

The invention provides a method and a device for multiplexing a media access control layer, which realize the information indication for copying PDCP data between a network and a terminal, and can ensure that the PDCP PDU and the PDCP data copy thereof are not multiplexed in the same transmission block, thereby ensuring the reliability gain of the PDCP duplicate.

Description

Method and device for media access control layer multiplexing

technical field

The present invention relates to the technical field of resource allocation, in particular to a method and device for multiplexing a Media Access Control (MAC, Media Access Control) layer.

Background technique

In order to achieve the characteristics of low latency and high reliability, in the future 5G may introduce the Packet Data Convergence Protocol duplication (PDCP, Packet Data Convergence Protocol duplication) function into the carrier aggregation architecture. PDCP duplication, that is, after a PDCP protocol data unit (PDU, Protocol Data Unit) is copied, the original PDCP PDU and the copied PDCP PDU are sent through two Radio Link Layer Control Protocol (RLC, Radio Link Control) entities, as shown in Figure 1 shown. Considering that the reliability gain of two PDCP PDUs in the same transport block is not obvious, and the simultaneous transmission failure is prone to occur, the two PDCP PDUs may be required to be placed in different transport blocks to ensure the PDCPduplication reliability gain. .

At present, there is no specific implementation scheme for how to perform the information indication of the PDCP data duplication (duplicated PDCP PDU) between the network and the terminal.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is to provide a medium access control layer multiplexing method and device for performing information indication of PDCP data replication between the network and the terminal.

In order to solve the above technical problems, the method for multiplexing the medium access control layer provided by the embodiment of the present invention includes:

The network device sends configuration information of the first logical channel to the terminal, where the configuration information of the first logical channel includes indication information of the logical channel used for transmitting the duplicated Packet Data Convergence Protocol PDCP data.

The embodiment of the present invention also provides another method for multiplexing the MAC layer of medium access control, including:

The terminal receives the configuration information of the first logical channel sent by the network device, where the configuration information of the first logical channel includes indication information of the logical channel used for transmitting the duplicated Packet Data Convergence Protocol PDCP data.

The embodiment of the present invention also provides another method for multiplexing the MAC layer of medium access control, including:

The terminal transmits data of each logical channel in the logical channel group through uplink resources, and the logical channel group includes at least two logical channels for performing PDCP data replication;

Wherein, the same uplink resource transmits data of one logical channel in the logical channel group at most; or, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the two or more logical channels pass through The data transmitted by the same uplink resource are all different.

The embodiment of the present invention also provides a network device, including:

The transceiver is configured to send configuration information of the first logical channel to the terminal, where the configuration information of the first logical channel includes indication information of the logical channel used for transmitting the duplicated Packet Data Convergence Protocol PDCP data.

An embodiment of the present invention further provides another network device, including: a memory, a processor, and a computer program stored in the memory and running on the processor, the computer program being executed by the processor to achieve the above-mentioned The steps of the method for media access control MAC layer multiplexing.

An embodiment of the present invention further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned media access control MAC layer multiplexing is implemented. steps of the method.

An embodiment of the present invention also provides a terminal, including:

A transceiver, configured to receive configuration information of a first logical channel sent by a network device, where the configuration information of the first logical channel includes indication information of a logical channel used for transmitting replicated Packet Data Convergence Protocol PDCP data.

The embodiment of the present invention also provides another terminal, including:

a transceiver, configured to transmit data of each logical channel in a logical channel group through uplink resources, where the logical channel group includes at least two logical channels for performing PDCP data replication;

Wherein, the same uplink resource transmits data of one logical channel in the logical channel group at most; or, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the two or more logical channels pass through The data transmitted by the same uplink resource are all different.

An embodiment of the present invention also provides another terminal, including: a memory, a processor, and a computer program stored in the memory and running on the processor, the computer program being executed by the processor to implement the above-mentioned Steps of a method for media access control MAC layer multiplexing.

An embodiment of the present invention further provides another computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned media access control MAC layer complex is implemented. method used.

Compared with the prior art, the method and device for media access control layer multiplexing provided by the embodiments of the present invention can realize the information indication of PDCP data replication between the network and the terminal, and can ensure the PDCP PDU and its PDCP data. Duplication is not multiplexed in the same transport block, thereby ensuring PDCP duplication reliability gain.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the drawings that are used in the description of the embodiments of the present invention. Obviously, the drawings in the following description are only some embodiments of the present invention. , for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative labor.

1 is a schematic diagram of a scenario of MAC layer multiplexing in the prior art;

2 is a schematic flowchart of a method for multiplexing a MAC layer on a network device side according to an embodiment of the present invention;

3 is a schematic flowchart of a method for multiplexing a terminal-side MAC layer according to an embodiment of the present invention;

FIG. 4 is a specific example diagram of MAC layer multiplexing provided by an embodiment of the present invention;

FIG. 5 is another specific example diagram of MAC layer multiplexing provided by an embodiment of the present invention;

6 is another schematic flowchart of a method for multiplexing a terminal-side MAC layer according to an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a network device according to an embodiment of the present invention;

FIG. 8 is another schematic structural diagram of a network device provided by an embodiment of the present invention;

FIG. 9 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 10 is another schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 11 is another schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 12 is another schematic structural diagram of a terminal provided by an embodiment of the present invention.

Detailed ways

In order to make the technical problems, technical solutions and advantages to be solved by the present invention more clear, the following will be described in detail with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided merely to assist in a comprehensive understanding of embodiments of the present invention. Accordingly, it should be apparent to those skilled in the art that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

It is to be understood that reference throughout the specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic associated with the embodiment is included in at least one embodiment of the present invention. Thus, appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily necessarily referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

In various embodiments of the present invention, it should be understood that the size of the sequence numbers of the following processes does not mean the sequence of execution, and the execution sequence of each process should be determined by its functions and internal logic, rather than the implementation of the present invention The implementation of the examples constitutes no limitation.

In the embodiment of the present invention, the form of the base station is not limited, and it may be a macro base station (Macro Base Station), a micro base station (Pico Base Station), a Node B (the name of a 3G mobile base station), an enhanced base station (eNB), and a home enhanced base station. Base station (FemtoeNB or Home eNode B or Home eNB or HeNB), relay station, access point, RRU (Remote Radio Unit, remote radio frequency module), RRH (Remote Radio Head, radio remote head), gNB (5G mobile base station name), network-side nodes in the 5G mobile communication system, such as a central unit (CU, Central Unit) and a distributed unit (DU, Distributed Unit). A terminal may be a mobile phone (or cell phone), or other device capable of sending or receiving wireless signals, including user equipment (UE), personal digital assistant (PDA), wireless modem, wireless communication device, handheld device, laptop computer, Cordless phones, wireless local loop (WLL) stations, CPE (CustomerPremise Equipment, customer terminals) that can convert mobile signals into WiFi signals, or mobile smart hotspots, smart home appliances, or other mobile communication networks that can spontaneously communicate without human operation communication equipment, etc. Additionally, the terms "system" and "network" are often used interchangeably herein.

In order to realize the information indication of PDCP data replication between the network and the terminal, an embodiment of the present invention provides a method for multiplexing at the MAC layer, which is applied to a network device. As shown in FIG. 2 , the method includes:

Step 21: The network device sends configuration information of the first logical channel to the terminal, where the configuration information of the first logical channel includes indication information of the logical channel used for transmitting the duplicated PDCP data.

Here, the configuration information of the first logical channel includes indication information for indicating a logical channel for transmitting duplicate PDCP data. Herein, the PDCP data duplicated (duplicated PDCP PDU) refers to the duplication of the original PDCP PDU. In the embodiment of the present invention, the original PDCP data (ie PDCP PDU) and the duplicated PDCP PDU (ie PDCP data copy) are sent through two RLC entities. The above-mentioned configuration information may be specifically sent to the corresponding terminal through RRC dedicated signaling.

Before the above step 21, the network device may first determine the configuration information of the first logical channel, and then send the configuration information of the first logical channel to the terminal in step 21.

Through the above configuration information, the embodiment of the present invention can implement the information indication of PDCP data replication between the network and the terminal.

Specifically, in this embodiment of the present invention, the indication information in step 21 may specifically be:

1) First indication information indicating whether the first logical channel enables the PDCP data duplication function.

Here, if the PDCP data duplication function is enabled, it means that the PDCP data duplication function of the first logical channel has enabled the PDCP duplication function; if not, it means that the PDCP data duplication function of the first logical channel has not enabled the PDCP duplication function.

2) Second indication information indicating whether the PDCP data replication function of the first logical channel is available.

Here, if the PDCP data duplication function is available, it indicates whether the first logical channel supports the PDCP data duplication function. If the PDCP data replication function of the first logical channel needs to be enabled, the network device may also send an activation instruction for activating the PDCP data replication function of the first logical channel to the terminal, for example, the network device may use a MAC control element (MAC CE, MAC Control Element), sending an activation instruction for activating the PDCP data duplication function of the first logical channel to the terminal, so as to enable the PDCP duplication function.

3) Indicates the third indication information of the second logical channel that is used together with the first logical channel for PDCP data replication.

Here, the RRC layer of the network device may add an information element (IE) to the first logical channel configuration to indicate which logical channels are a pair or a group. For example, IE: pairedlogicalChannelIdentity=2 is added to the LCH configuration of LCH1 to indicate that LCH1 and LCH2 are a pair and are used for the PDCP duplication function together.

4) The first channel identifier of the first logical channel, wherein the first channel identifier is the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data.

Here, the RRC layer of the network device may configure the same logical channel identifier (LCID) for at least two LCHs, so that at least two logical channels with the same LCID may be identified as a channel group transmitting original PDCP data and PDFCP data duplicates.

5) Represents the first data bearer identification that bears the first logical channel, wherein the first data bearer identification is the same data bearer identification configured for the logical channel used to transmit the replicated PDCP data, and different logical channels are configured The channel IDs are different.

Here, the RRC layer of the network device can configure at least two LCHs with different LCIDs, but these LCHs correspond to the same data bearer ID (DRB ID), thus, at least two logical channels with different LCIDs but the same data bearer ID Can be identified as a channel group that transmits original PDCP data and copies of PDFCP data.

Corresponding to the above method on the network device side, an embodiment of the present invention also provides a method for MAC layer multiplexing, when applied to the terminal side, as shown in FIG. 3 , the method includes:

Step 31: The terminal receives configuration information of the first logical channel sent by the network device, where the configuration information of the first logical channel includes indication information of the logical channel used for transmitting the duplicated Packet Data Convergence Protocol PDCP data.

Here, the terminal may receive the configuration information of the first logical channel sent by the network device through RRC dedicated signaling.

Through the above steps, the embodiment of the present invention can implement the information indication of PDCP data replication between the network and the terminal.

After the above step 31, the terminal may further determine a logical channel group for transmitting the duplicated PDCP data according to the configuration information of the first logical channel. The logical channel group may include at least two LCHs.

For example, for the above-mentioned first indication information, if the terminal receives the configuration information of two or more logical channels including an indication that the corresponding logical channel enables the PDCP data duplication function, the terminal will use the two or more logical channels as the PDCP for transmitting duplication Logical channel group for data.

For another example, for the above-mentioned second indication information, when the terminal receives the configuration information of two or more logical channels including an indication that the PDCP data duplication function of the corresponding logical channel is available, and the PDCP data duplication function has been activated, the two The above logical channels serve as a logical channel group for transmitting replicated PDCP data.

For another example, for the above-mentioned third indication information, the terminal may directly use the first logical channel and the second logical channel as a logical channel group for transmitting duplicate PDCP data according to the third indication information.

For another example, for the above-mentioned fourth indication information, the terminal may determine the logical channel group for transmitting the duplicated PDCP data according to the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data.

For another example, for the fifth indication information, the terminal may determine the logical channel group for transmitting the duplicated PDCP data according to the same data bearer identifier configured on the logical channel for transmitting the duplicated PDCP data.

After determining the logical channel group for transmitting the duplicated PDCP data, the terminal may transmit data of each logical channel in the logical channel group through uplink resources.

As an implementation manner, the same uplink resource transmits data of one logical channel in the logical channel group at most. At this time, the terminal can select a logical channel in the logical channel group, and multiplex the data of the selected logical channel on the MAC PDU of the current uplink resource; and, when there are remaining resources in the current uplink resource, select the selected logical channel. The data of other logical channels other than the above-mentioned logical channel group are multiplexed into the MAC PDU of the current uplink resource.

Here, the same uplink resource may be the same transport block (Transport Block). Specifically, at least two LCHs used for PDCP duplication have the same scheduling priority, and on each available uplink resource, the terminal (UE) MAC layer only selects one of the LCHs and multiplexes the data of the LCH onto the MAC PDU , if the MAC PDU has remaining uplink resources available, the data on other LCHs other than the above at least two LCHs can be used.

Figure 4 shows an example of this implementation. In Figure 4, each rectangular small square represents a PDCP PDU, and the small square filled with the same content represents the same PDCP PDU (ie, the original PDCP PDU data and the PDCP PDU data copy), wherein , LCH1 and LCH2 are two logical channels in the logical channel group, and LCH3 is another channel. Transport block 1 and transport block 2 may be transport blocks sent on different carriers at the same time, or may be transport blocks sent on the same/different carriers at different times. It is assumed here that the UE processes transport block 1 first, and then processes transport block 2. LCH 1 and LCH 2 belong to the same bearer and have the same scheduling priority, which is higher than the scheduling priority of LCH 3, that is, the data on bearer 1 (LCH1 and LCH2) will be preferentially multiplexed to the MAC PDU during MAC multiplexing In the above, the data on LCH3 will be multiplexed only after the priority bit rate requirement of bearer 1 is satisfied. It can be seen that the data of LCH1 and LCH2 are multiplexed in different transport block 1 and transport block 2 respectively in FIG. 4 , thereby ensuring that the same PDCP PDU does not exist in the same transport block.

As another implementation manner, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the data transmitted by the two or more logical channels through the same uplink resource are different. At this time, there are different situations as follows:

a) The terminal can maintain the amount of data delivered to the MAC layer by each logical channel in the logical channel group; When the data volume interval transmitted by the current uplink resource does not have an overlapping area, the data transmitted by each logical channel through the current uplink resource; the data transmitted by each logical channel through the current uplink resource is multiplexed to the MAC of the current uplink resource. on the PDU.

Here, the UE MAC layer maintains a variable (assuming Bi) for each LCH in this logical channel group, which represents the amount of data that this LCH has delivered to the UE MAC layer. By comparing the Bi values of each LCH, it can be ensured that the data of each LCH multiplexed on each uplink resource is different.

b) The terminal can maintain the difference in the amount of data delivered to the MAC layer for every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group have been delivered to the MAC When the difference of the data volume of the layer is the first value, multiplex the data of the logical channel with less data volume that has been delivered to the MAC layer in the first logical channel and the second logical channel to the MAC PDU of the current uplink resource , and the amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel is multiplexed to On the MAC PDU of the current uplink resource.

Here, taking two LCHs as an example, the UE MAC layer maintains a variable Ci for the two LCHs respectively, indicating the difference in the amount of data that the two LCHs have delivered to the UE MAC, such as Ci=(LCH 1 has been delivered to the UE Data Amount of MAC - Amount of data that LCH 2 has delivered to UE MAC). Based on the value of Ci, it can be guaranteed that the data of the two LCHs multiplexed on each uplink resource are different.

Figure 5 shows an example of this implementation. In Figure 5, each rectangular small square represents a PDCP PDU, and the small square filled with the same content represents the same PDCP PDU (ie, the original PDCP PDU data and the PDCP PDU data copy), wherein , LCH1 and LCH2 are two logical channels in the logical channel group, and LCH3 is another channel. It is assumed that LCH 1 and LCH 2 belong to the same bearer and have the same scheduling priority, which is higher than that of LCH 3. Transport block 1 is the first transmission resource, and only data of LCH 1 and other LCHs (ie, LCH3) are multiplexed, and data of LCH2 is not multiplexed. This time, the LCH1 delivers 5 PDUs to the UE MAC and satisfies the priority bit rate requirement of the LCH, so the difference Bi is updated to 5. After that, each MAC multiplexing starts from LCH2. Because the uplink resources corresponding to transport block 2 are limited, only three PDUs of LCH2 are multiplexed, and the difference Bi is updated to 2. Since the difference value Bi=2, at most two LCH2 PDUs are multiplexed. However, the priority bit rate requirement of the LCH has not been met, so continue to multiplex the PDUs of LCH1. After multiplexing 3 PDUs, the requirement is met, and the difference Bi is updated to 3. It can be seen that the data of LCH1 and LCH2 can be multiplexed in the same transport block (such as transport block 3) in Figure 5, but through the above difference-based multiplexing method, it can be guaranteed that there will be no data in the same transport block. The same PDCP PDU.

c) The terminal can maintain the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, multiplex the data of different sequence numbers of each logical channel in the logical channel group to the current uplink on the MACPDU of the resource.

Here, the PDCP or RLC layer of the terminal may add the same mark to the original PDCP PDU and the duplicated PDCP PDU, such as adding the same sequence number to the header of the two PDUs, or adding the same sequence number to the tail of the two PDUs. Based on this specific sequence number, the UE MAC layer can ensure that the data multiplexed onto the same uplink resource (ie, one transport block) on the two LCHs is different.

An embodiment of the present invention further provides a method for multiplexing a medium access control MAC layer, which is applied to a terminal. As shown in FIG. 6 , the method includes:

Step 61, the terminal transmits data of each logical channel in the logical channel group through uplink resources, and the logical channel group includes at least two logical channels for performing PDCP data replication;

Wherein, the same uplink resource transmits data of one logical channel in the logical channel group at most; or, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the two or more logical channels pass through The data transmitted by the same uplink resource are all different.

As an implementation manner, when the same uplink resource transmits data of at most one logical channel in the logical channel group, the terminal may select one logical channel in the logical channel group, and multiplex the data of the selected logical channel onto the MAC PDU of the current uplink resource; and, when there are remaining resources in the current uplink resource, select data of other logical channels other than the logical channel group, and multiplex it onto the MAC PDU of the current uplink resource.

As another implementation manner, when the same uplink resource transmits data of two or more logical channels in the logical channel group, and the data transmitted by the two or more logical channels through the same uplink resource are different:

The terminal can maintain the amount of data that each logical channel in the logical channel group has delivered to the MAC layer; according to the amount of data that has been delivered to the MAC layer for each logical channel, determine whether each logical channel passes the current uplink. When there is no overlapping area in the data volume interval of resource transmission, the data transmitted by each logical channel through the current uplink resource; multiplexing the data transmitted by each logical channel through the current uplink resource on the MAC PDU of the current uplink resource ;or,

The terminal can maintain the difference in the amount of data delivered to the MAC layer for every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group have been delivered to the MAC layer. When the difference of the data amount is the first value, multiplex the data of the logical channel with less data amount that has been delivered to the MAC layer in the first logical channel and the second logical channel to the MAC PDU of the current uplink resource, and The amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel is multiplexed to the current uplink on the MAC PDU of the resource. or,

The terminal can maintain the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, the data of different sequence numbers of each logical channel in the logical channel group is multiplexed to the current uplink resource. on the MACPDU.

It can be seen from the above that the embodiment of the present invention can realize the information indication of PDCP data replication between the network and the terminal, and can ensure that the PDCP PDU and its PDCP data replication are not multiplexed in the same transport block, thereby ensuring that PDCP duplication reliability gain.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for multiplexing the MAC layer on the network device side in any one of the above method embodiments is implemented. A step of.

Embodiments of the present invention further provide a computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the method for multiplexing the MAC layer on the terminal side in any one of the foregoing method embodiments. step.

Based on the above method, an embodiment of the present invention also provides a network device for implementing the above method. Please refer to FIG. 7 , the network device 70 includes a processor 71 and a transceiver 72, wherein,

The transceiver 72 is configured to send configuration information of the first logical channel to the terminal, where the configuration information of the first logical channel includes indication information of a logical channel used for transmitting replicated Packet Data Convergence Protocol PDCP data.

Here, the indication information is the first indication information indicating whether the PDCP data duplication function is enabled on the first logical channel; or, the indication information is the second indication information indicating whether the PDCP data duplication function of the first logical channel is available; or , the indication information is the third indication information representing the second logical channel that is used together with the first logical channel for PDCP data replication; or, the indication information is the first channel identifier of the first logical channel, wherein the The first channel identifier is the same channel identifier configured for the logical channel used to transmit the replicated PDCP data; or, the indication information is a first data bearer identifier representing the first logical channel, wherein the first data The bearer identifier is the same data bearer identifier configured for the logical channel used for transmitting the duplicated PDCP data, and the channel identifiers configured for different logical channels are different.

The transceiver 72 is specifically configured to send the configuration information of the first logical channel to the terminal through RRC dedicated signaling.

When the indication information is the second indication information indicating whether the PDCP data duplication function of the first logical channel is available, the transceiver 72 is further configured to send the PDCP data duplication for activating the first logical channel to the terminal The activation command for the function.

Further, the transceiver 72 is further configured to send an activation instruction for activating the PDCP data replication function of the first logical channel to the terminal through the MAC control element.

Referring to FIG. 8, an embodiment of the present invention provides another schematic structural diagram of a network device, including: a processor 801, a transceiver 802, a memory 803, and a bus interface, wherein:

In this embodiment of the present invention, the network device 800 further includes: a computer program stored on the memory 803 and executable on the processor 801, and the computer program is executed by the processor 801 to implement the following steps: sending the first logical channel to the terminal. Configuration information, where the configuration information of the first logical channel includes indication information of a logical channel used for transmitting replicated Packet Data Convergence Protocol PDCP data.

In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 801 and various circuits of memory represented by memory 803 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 802 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium.

The processor 801 is responsible for managing the bus architecture and general processing, and the memory 803 may store data used by the processor 801 in performing operations.

Optionally, when the computer program is executed by the processor 803, the following steps may also be implemented: sending the configuration information of the first logical channel to the terminal through the RRC dedicated signaling of radio resource control.

Optionally, when the computer program is executed by the processor 803, the following step may be further implemented: sending an activation instruction for activating the PDCP data copy function of the first logical channel to the terminal.

Optionally, when the computer program is executed by the processor 803, the following steps may also be implemented: sending an activation instruction for activating the PDCP data copy function of the first logical channel to the terminal through the MAC control element.

Referring to FIG. 9 , an embodiment of the present invention provides a terminal 90 , including: a processor 91 and a transceiver 92 .

The transceiver 92 is configured to receive configuration information of a first logical channel sent by a network device, where the configuration information of the first logical channel includes indication information of a logical channel used to transmit replicated Packet Data Convergence Protocol PDCP data .

Here, the indication information is the first indication information indicating whether the PDCP data duplication function is enabled on the first logical channel; or, the indication information is the second indication information indicating whether the PDCP data duplication function of the first logical channel is available; or , the indication information is the third indication information representing the second logical channel that is used together with the first logical channel for PDCP data replication; or, the indication information is the first channel identifier of the first logical channel, wherein the The first channel identifier is the same channel identifier configured for the logical channel used to transmit the replicated PDCP data; or, the indication information is a first data bearer identifier representing the first logical channel, wherein the first data The bearer identifier is the same data bearer identifier configured for the logical channel used for transmitting the duplicated PDCP data, and the channel identifiers configured for different logical channels are different.

Preferably, the processor 91 is configured to determine a logical channel group for transmitting the duplicated PDCP data according to the configuration information of the first logical channel.

Preferably, the transceiver 92 is further configured to transmit data of each logical channel in the logical channel group through uplink resources; wherein the same uplink resource transmits data of at most one logical channel in the logical channel group; or , the same uplink resource transmits data of two or more logical channels in the logical channel group, and the data transmitted by the two or more logical channels through the same uplink resource are different.

Preferably, the transceiver 92 is further configured to select one logical channel in the logical channel group when the same uplink resource transmits data of at most one logical channel in the logical channel group, and transfer the selected logical channel The data multiplexed on the MAC PDU of the current uplink resource; and, when the current uplink resource has remaining resources, select the data of other logical channels other than the logical channel group, and multiplex it on the MAC PDU of the current uplink resource. .

Preferably, the transceiver 92 is further configured to transmit data of two or more logical channels in the logical channel group on the same uplink resource, and the data transmitted by the two or more logical channels through the same uplink resource are different from each other. At the same time, maintain the amount of data delivered to the MAC layer by each logical channel in the logical channel group; When there is no overlapping area in the data volume interval of resource transmission, the data transmitted by each logical channel through the current uplink resource; multiplexing the data transmitted by each logical channel through the current uplink resource on the MAC PDU of the current uplink resource ; Or, maintain the difference in the amount of data delivered to the MAC layer for every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group have been delivered to the MAC layer When the difference in the amount of data is the first value, multiplex the data of the logical channel with the smaller amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel onto the MAC PDU of the current uplink resource, and The amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel is multiplexed to the current uplink on the MAC PDU of the resource. Or, maintain the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, multiplex the data of different sequence numbers of each logical channel in the logical channel group to the current uplink resource on the MAC PDU.

Referring to FIG. 10, another structure of a terminal provided by an embodiment of the present invention, the terminal 1000 includes: a processor 1001, a transceiver 1002, a memory 1003, a user interface 1004, and a bus interface, wherein:

In this embodiment of the present invention, the terminal 1000 further includes: a computer program that is stored in the memory 1003 and that can run on the processor 1001. When the computer program is executed by the processor 1001, the following steps are implemented: receiving the first logical channel sent by the network device. The configuration information of the first logical channel includes the indication information of the logical channel used for transmitting the duplicated Packet Data Convergence Protocol PDCP data.

In FIG. 10, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1002 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. For different user equipments, the user interface 1004 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1001 is responsible for managing the bus architecture and general processing, and the memory 1003 may store data used by the processor 1001 in performing operations.

Here, the indication information is the first indication information indicating whether the PDCP data duplication function is enabled on the first logical channel; or, the indication information is the second indication information indicating whether the PDCP data duplication function of the first logical channel is available; or , the indication information is the third indication information representing the second logical channel that is used together with the first logical channel for PDCP data replication; or, the indication information is the first channel identifier of the first logical channel, wherein the The first channel identifier is the same channel identifier configured for the logical channel used to transmit the replicated PDCP data; or, the indication information is a first data bearer identifier representing the first logical channel, wherein the first data The bearer identifier is the same data bearer identifier configured for the logical channel used for transmitting the duplicated PDCP data, and the channel identifiers configured for different logical channels are different.

Optionally, when the computer program is executed by the processor 1003, the following steps may be further implemented: according to the configuration information of the first logical channel, determine a logical channel group for transmitting the replicated PDCP data.

Optionally, when the computer program is executed by the processor 1003, the following steps may also be implemented: transmitting data of each logical channel in the logical channel group through uplink resources; wherein the same uplink resource transmits at most one of the logical channel groups. data of a logical channel; or, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the data transmitted by the two or more logical channels through the same uplink resource are different.

Optionally, when the computer program is executed by the processor 1003, the following steps may also be implemented: when the same uplink resource transmits data of one logical channel in the logical channel group at most, select one logical channel in the logical channel group, Multiplexing the data of the selected logical channel on the MAC PDU of the current uplink resource; and, when the current uplink resource has remaining resources, select the data of other logical channels other than the logical channel group, and multiplex it to the current uplink resource. On the MAC PDU of uplink resources.

Optionally, when the computer program is executed by the processor 1003, the following steps may also be implemented: transmitting data of two or more logical channels in the logical channel group on the same uplink resource, and the two or more logical channels pass through the same uplink resource. When the transmitted data are different, maintain the amount of data delivered to the MAC layer by each logical channel in the logical channel group; determine the amount of data delivered to the MAC layer by each logical channel When there is no overlapping area in the data volume interval transmitted by each logical channel through the current uplink resource, the data transmitted by each logical channel through the current uplink resource; multiplex the data transmitted by each logical channel through the current uplink resource to the current on the MAC PDU of uplink resources; or, maintain the difference in the amount of data delivered to the MAC layer by every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group When the difference in the amount of data delivered to the MAC layer is the first value, multiplex the data of the logical channel with a smaller amount of data delivered to the MAC layer in the first logical channel and the second logical channel to the current uplink resource On the MAC PDU, and the amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel , multiplexed to the MAC PDU of the current uplink resource. Or, maintain the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, multiplex the data of different sequence numbers of each logical channel in the logical channel group to the current uplink resource on the MAC PDU.

Referring to FIG. 11 , an embodiment of the present invention provides a terminal 110 , including: a processor 111 and a transceiver 112 .

Wherein, the transceiver 112 is configured to transmit data of each logical channel in the logical channel group through uplink resources, and the logical channel group includes at least two logical channels for performing PDCP data replication;

Wherein, the same uplink resource transmits data of one logical channel in the logical channel group at most; or, the same uplink resource transmits data of two or more logical channels in the logical channel group, and the two or more logical channels pass through The data transmitted by the same uplink resource are all different.

Preferably, the transceiver 112 is further configured to select one logical channel in the logical channel group when the same uplink resource transmits data of at most one logical channel in the logical channel group, and transfer the selected logical channel The data multiplexed on the MAC PDU of the current uplink resource; and, when the current uplink resource has remaining resources, select the data of other logical channels other than the logical channel group, and multiplex it on the MAC PDU of the current uplink resource. .

Preferably, the transceiver 112 is further configured to transmit data of two or more logical channels in the logical channel group on the same uplink resource, and the data transmitted by the two or more logical channels through the same uplink resource are different from each other. At the same time, maintain the amount of data delivered to the MAC layer by each logical channel in the logical channel group; When there is no overlapping area in the data volume interval of resource transmission, the data transmitted by each logical channel through the current uplink resource; multiplexing the data transmitted by each logical channel through the current uplink resource on the MAC PDU of the current uplink resource ; Or, maintain the difference in the amount of data delivered to the MAC layer for every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group have been delivered to the MAC layer When the difference in the amount of data is the first value, multiplex the data of the logical channel with the smaller amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel onto the MAC PDU of the current uplink resource, and The amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel is multiplexed to the current uplink on the MAC PDU of the resource. Or, maintain the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, multiplex the data of different sequence numbers of each logical channel in the logical channel group to the current uplink resource on the MAC PDU.

Referring to FIG. 12, another structure of a terminal provided by an embodiment of the present invention, the terminal 1200 includes: a processor 1201, a transceiver 1202, a memory 1203, a user interface 1204, and a bus interface, wherein:

In this embodiment of the present invention, the terminal 1200 further includes: a computer program that is stored in the memory 1203 and can be run on the processor 1201. When the computer program is executed by the processor 1201, the following steps are implemented: transmitting the data in the logical channel group through uplink resources. The data of each logical channel, the logical channel group includes at least two logical channels for PDCP data replication; wherein, the same uplink resource transmits data of one logical channel in the logical channel group at most; or, the same uplink resource transmits all data. data of two or more logical channels in the logical channel group, and the data transmitted by the two or more logical channels through the same uplink resource are different.

In FIG. 12, the bus architecture may include any number of interconnected buses and bridges, specifically one or more processors represented by processor 1201 and various circuits of memory represented by memory 1203 linked together. The bus architecture may also link together various other circuits, such as peripherals, voltage regulators, and power management circuits, which are well known in the art and, therefore, will not be described further herein. The bus interface provides the interface. Transceiver 1202 may be a number of elements, including a transmitter and a receiver, that provide a means for communicating with various other devices over a transmission medium. For different user equipment, the user interface 1204 may also be an interface capable of externally connecting the required equipment, and the connected equipment includes but is not limited to a keypad, a display, a speaker, a microphone, a joystick, and the like.

The processor 1201 is responsible for managing the bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.

Optionally, when the computer program is executed by the processor 1203, the following steps may be further implemented: according to the configuration information of the first logical channel, determine a logical channel group for transmitting the replicated PDCP data.

Optionally, when the computer program is executed by the processor 1203, the following steps may also be implemented: when the same uplink resource transmits data of at most one logical channel in the logical channel group, select one logical channel in the logical channel group, Multiplexing the data of the selected logical channel on the MAC PDU of the current uplink resource; and, when the current uplink resource has remaining resources, select the data of other logical channels other than the logical channel group, and multiplex it to the current uplink resource. On the MAC PDU of uplink resources.

Optionally, when the computer program is executed by the processor 1203, the following steps may also be implemented: transmitting data of two or more logical channels in the logical channel group on the same uplink resource, and the two or more logical channels pass through the same uplink resource. When the transmitted data are different, maintain the amount of data delivered to the MAC layer by each logical channel in the logical channel group; determine the amount of data delivered to the MAC layer by each logical channel When there is no overlapping area in the data volume interval transmitted by each logical channel through the current uplink resource, the data transmitted by each logical channel through the current uplink resource; multiplex the data transmitted by each logical channel through the current uplink resource to the current on the MAC PDU of uplink resources; or, maintain the difference in the amount of data delivered to the MAC layer by every two logical channels in the logical channel group; the first logical channel and the second logical channel in the logical channel group When the difference in the amount of data delivered to the MAC layer is the first value, multiplex the data of the logical channel with a smaller amount of data delivered to the MAC layer in the first logical channel and the second logical channel to the current uplink resource On the MAC PDU, and the amount of multiplexed data does not exceed the absolute value of the first value; at the same time, the data of the logical channel with a larger amount of data that has been delivered to the MAC layer in the first logical channel and the second logical channel , multiplexed to the MAC PDU of the current uplink resource. Or, protect the sequence number of the data of each logical channel in the logical channel group; according to the sequence number, multiplex the data of different sequence numbers of each logical channel in the logical channel group to the current uplink resource on the MAC PDU.

Those of ordinary skill in the art can realize that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Skilled artisans may implement the described functionality using different methods for each particular application, but such implementations should not be considered beyond the scope of the present invention.

Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process of the above-described systems, devices and units may refer to the corresponding processes in the foregoing method embodiments, which will not be repeated here.

In the embodiments provided in this application, it should be understood that the disclosed apparatus and method may be implemented in other manners. For example, the apparatus embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not implemented. On the other hand, the shown or discussed mutual coupling or direct coupling or communication connection may be through some interfaces, indirect coupling or communication connection of devices or units, and may be in electrical, mechanical or other forms.

The units described as separate components may or may not be physically separated, and components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solutions in the embodiments of the present invention.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically alone, or two or more units may be integrated into one unit.

The functions, if implemented in the form of software functional units and sold or used as independent products, may be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention can be embodied in the form of a software product in essence, or the part that contributes to the prior art or the part of the technical solution. The computer software product is stored in a storage medium, including Several instructions are used to cause a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk and other mediums that can store program codes.

The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention. should be included within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims (12)

1. A method for MAC layer multiplexing, comprising:

the network equipment sends configuration information of a first logical channel to a terminal, wherein the configuration information of the first logical channel comprises indication information of the logical channel used for transmitting duplicated Packet Data Convergence Protocol (PDCP) data; wherein,

the indication information is first indication information which represents whether the first logical channel enables a PDCP data copying function; or,

the indication information is second indication information indicating whether a PDCP data copy function of the first logical channel is available; or

The indication information is third indication information representing a second logical channel which is commonly used for PDCP data duplication with the first logical channel; or

The indication information is a first channel identifier of a first logical channel, wherein the first channel identifier is the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data; or

The indication information is a first data bearer identifier indicating that a first logical channel is carried, where the first data bearer identifier is the same data bearer identifier configured for a logical channel used for transmitting duplicated PDCP data, and channel identifiers configured for different logical channels are different.

2. The method of claim 1, wherein when the indication information is second indication information indicating whether a PDCP data copy function of the first logical channel is available, the method further comprises:

the network device transmits an activation instruction for activating a PDCP data copy function of the first logical channel to the terminal.

3. A method for MAC layer multiplexing, comprising:

a terminal receives configuration information of a first logical channel sent by network equipment, wherein the configuration information of the first logical channel comprises indication information of the logical channel used for transmitting duplicated Packet Data Convergence Protocol (PDCP) data; wherein,

the indication information is first indication information which represents whether the first logical channel enables a PDCP data copying function; or,

the indication information is second indication information indicating whether a PDCP data copy function of the first logical channel is available; or

The indication information is third indication information representing a second logical channel which is commonly used for PDCP data duplication with the first logical channel; or

The indication information is a first channel identifier of a first logical channel, wherein the first channel identifier is the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data; or

The indication information is a first data bearer identifier indicating that a first logical channel is carried, where the first data bearer identifier is the same data bearer identifier configured for a logical channel used for transmitting duplicated PDCP data, and channel identifiers configured for different logical channels are different.

4. The method of claim 3, further comprising:

and the terminal determines a logical channel group for transmitting the copied PDCP data according to the configuration information of the first logical channel.

5. A method for MAC layer multiplexing, comprising:

the terminal transmits data of each logical channel in a logical channel group through uplink resources, wherein the logical channel group comprises at least two logical channels for carrying out PDCP data replication;

the same uplink resource transmits the data of at most one logical channel in the logical channel group; or, the same uplink resource transmits data of more than two logical channels in the logical channel group, and the data transmitted by the more than two logical channels through the same uplink resource are different.

6. The method as claimed in claim 5, wherein the step of the terminal transmitting data of each logical channel in the logical channel group through the uplink resource when the same uplink resource transmits data of at most one logical channel in the logical channel group comprises:

the terminal selects a logical channel in the logical channel group, and multiplexes the data of the selected logical channel to the MAC PDU of the current uplink resource; and when the current uplink resource has the remaining resource, selecting the data of other logical channels except the logical channel group and multiplexing the data to the MAC PDU of the current uplink resource.

7. The method as claimed in claim 5, wherein the step of the terminal transmitting data of each logical channel in the logical channel group through the uplink resource when data of two or more logical channels in the logical channel group are transmitted in the same uplink resource and the data transmitted by the two or more logical channels through the same uplink resource are different comprises:

the terminal maintains the data volume delivered to the MAC layer by each logical channel in the logical channel group; determining data transmitted by each logical channel through the current uplink resource when an overlapping area does not exist in a data volume interval transmitted by each logical channel through the current uplink resource according to the data volume delivered to the MAC layer by each logical channel; multiplexing the data transmitted by each logic channel through the current uplink resource to the MAC PDU of the current uplink resource; or,

the terminal maintains the difference value of the data quantity delivered to the MAC layer by every two logic channels in the logic channel group; multiplexing data of a logical channel with a smaller data volume delivered to the MAC layer in the first logical channel and the second logical channel onto the MAC PDU of the current uplink resource when the difference value of the data volumes delivered to the MAC layer by the first logical channel and the second logical channel in the logical channel group is a first value, wherein the multiplexed data volume does not exceed the absolute value of the first value; simultaneously, multiplexing the data of the logic channel with more data delivered to the MAC layer in the first logic channel and the second logic channel to the MAC PDU of the current uplink resource; or,

the terminal maintains the serial number of the data of each logical channel in the logical channel group; and multiplexing the data of different serial numbers of each logical channel in the logical channel group to the MAC PDU of the current uplink resource according to the serial number.

8. A network device, comprising:

a transceiver for transmitting configuration information of a first logical channel to a terminal, the configuration information of the first logical channel including indication information of a logical channel for transmitting duplicated packet data convergence protocol PDCP data; wherein,

the indication information is first indication information which represents whether the first logical channel enables a PDCP data copying function; or,

the indication information is second indication information indicating whether a PDCP data copy function of the first logical channel is available; or

The indication information is third indication information representing a second logical channel which is commonly used for PDCP data duplication with the first logical channel; or

The indication information is a first channel identifier of a first logical channel, wherein the first channel identifier is the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data; or

The indication information is a first data bearer identifier indicating that a first logical channel is carried, where the first data bearer identifier is the same data bearer identifier configured for a logical channel used for transmitting duplicated PDCP data, and channel identifiers configured for different logical channels are different.

9. A communication device, comprising: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor performs the steps of the method of medium access control, MAC, layer multiplexing according to any of claims 1 to 2, or the steps of the method of medium access control, MAC, layer multiplexing according to any of claims 3 to 4, or the steps of the method of medium access control, MAC, layer multiplexing according to any of claims 5 to 7.

10. A computer-readable storage medium, characterized in that a computer program is stored thereon, which, when being executed by a processor, carries out the steps of the method of medium access control, MAC, layer multiplexing according to one of claims 1 to 2, or the steps of the method of medium access control, MAC, layer multiplexing according to one of claims 3 to 4, or the steps of the method of medium access control, MAC, layer multiplexing according to one of claims 5 to 7.

11. A terminal, comprising:

a transceiver, configured to receive configuration information of a first logical channel sent by a network device, where the configuration information of the first logical channel includes indication information of a logical channel used for transmitting duplicated packet data convergence protocol PDCP data; wherein,

the indication information is first indication information which represents whether the first logical channel enables a PDCP data copying function; or,

the indication information is second indication information indicating whether a PDCP data copy function of the first logical channel is available; or

The indication information is third indication information representing a second logical channel which is commonly used for PDCP data duplication with the first logical channel; or

The indication information is a first channel identifier of a first logical channel, wherein the first channel identifier is the same channel identifier configured for the logical channel used for transmitting the duplicated PDCP data; or

The indication information is a first data bearer identifier indicating that a first logical channel is carried, where the first data bearer identifier is the same data bearer identifier configured for a logical channel used for transmitting duplicated PDCP data, and channel identifiers configured for different logical channels are different.

12. A terminal, comprising:

a transceiver, configured to transmit data of each logical channel in a logical channel group through an uplink resource, where the logical channel group includes at least two logical channels for performing PDCP data replication;

the same uplink resource transmits the data of at most one logical channel in the logical channel group; or, the same uplink resource transmits data of more than two logical channels in the logical channel group, and the data transmitted by the more than two logical channels through the same uplink resource are different.

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