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

Method and equipment for multiplexing media access control layer Download PDF

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CN109428694B
CN109428694B CN201710735580.2A CN201710735580A CN109428694B CN 109428694 B CN109428694 B CN 109428694B CN 201710735580 A CN201710735580 A CN 201710735580A CN 109428694 B CN109428694 B CN 109428694B
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logical channel
data
indication information
logical
uplink resource
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CN109428694A (en
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李娜
陈卓
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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China Mobile Communications Group Co Ltd
China Mobile Communications Ltd Research Institute
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0048—Allocation of pilot signals, i.e. of signals known to the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/0091—Signaling for the administration of the divided path

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  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

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 equipment for multiplexing media access control layer
Technical Field
The invention relates to the technical field of resource allocation, in particular to a method and equipment for multiplexing a Media Access Control (MAC) layer.
Background
In order to realize the characteristics of low delay and high reliability, a Packet Data Convergence Protocol (PDCP) function may be introduced into a carrier aggregation architecture in the future 5G. PDCP duplication, i.e., after a certain PDCP Protocol Data Unit (PDU) is duplicated, an original PDCP PDU and the duplicated PDCP PDU are sent through two Radio Link Control (RLC) entities, as shown in fig. 1. Considering that the reliability gain of two PDCP PDUs placed in the same transport block is not obvious and simultaneous transmission failure is easy to occur, it may be required that the two PDCP PDUs are placed in different transport blocks to ensure the PDCP duplicate reliability gain.
At present, no specific implementation scheme has been given for how to perform the information indication of PDCP data duplication (duplicated PDCP PDU) between the network and the terminal.
Disclosure of Invention
The technical problem to be solved by the embodiments of the present invention is to provide a method and a device for multiplexing a media access control layer, which are used for indicating information for PDCP data replication between a network and a terminal.
To solve the foregoing technical problem, an embodiment of the present invention provides a method for multiplexing a media access control layer, including:
the network equipment sends configuration information of a first logical channel to the terminal, wherein the configuration information of the first logical channel comprises indication information of the logical channel used for transmitting the duplicated packet data convergence protocol PDCP data.
The embodiment of the invention also provides another method for multiplexing the media access control MAC layer, which comprises the following steps:
the terminal receives configuration information of a first logical channel sent by a network device, wherein the configuration information of the first logical channel comprises indication information of the logical channel used for transmitting the duplicated packet data convergence protocol PDCP data.
The embodiment of the invention also provides another method for multiplexing the media access control MAC layer, which comprises the following steps:
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.
An embodiment of the present invention further provides a network device, including:
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.
An embodiment of the present invention further provides another network device, including: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of medium access control, MAC, layer multiplexing as described above.
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 computer program implements the steps of the method for MAC layer multiplexing as described above.
An embodiment of the present invention further provides a terminal, including:
the device comprises a transceiver and a receiver, wherein the transceiver is used for receiving configuration information of a first logical channel sent by a network device, and 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.
The embodiment of the invention also provides another terminal, which comprises:
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.
The embodiment of the invention also provides another terminal, which comprises: memory, processor and computer program stored on the memory and executable on the processor, which when executed by the processor implements the steps of the method of medium access control, MAC, layer multiplexing as described above.
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 method for multiplexing a MAC layer is implemented as described above.
Compared with the prior art, the method and the device for multiplexing the media access control layer provided by the embodiment of the invention can realize the information indication for copying the PDCP data between the network and the terminal, and can ensure that the PDCP PDU and the PDCP data thereof are not multiplexed in the same transmission block, thereby ensuring the reliability gain of the PDCP duplicate.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a diagram illustrating a scenario of MAC layer multiplexing in the prior art;
fig. 2 is a flowchart illustrating a method for multiplexing an MAC layer on a network device side according to an embodiment of the present invention;
fig. 3 is a flowchart illustrating a method for multiplexing a MAC layer on a terminal side according to an embodiment of the present invention;
fig. 4 is a diagram illustrating a specific example of MAC layer multiplexing according to an embodiment of the present invention;
fig. 5 is a diagram of another specific example of MAC layer multiplexing according to an embodiment of the present invention;
fig. 6 is another flowchart illustrating a method for multiplexing MAC layers on a terminal side 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 a schematic structural diagram of a network device according to an embodiment of the present invention;
fig. 9 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 10 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of a terminal according to an embodiment of the present invention;
fig. 12 is a schematic structural diagram of a terminal according to an embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments. In the following description, specific details such as specific configurations and components are provided only to help the full understanding of the embodiments of the present invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all 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 sequence numbers of the following processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
In the embodiment of the present invention, the Base Station may be a Macro Base Station (Macro Base Station), a micro Base Station (Pico Base Station), a Node B (call of a 3G mobile Base Station), an enhanced Base Station (eNB), a Home enhanced Base Station (femtobe or Home eNode B or Home eNB or HeNB), a relay Station, an access point, a RRU (Remote Radio Unit), an RRH (Remote Radio Head), a gNB (call of a 5G mobile Base Station), a network side Node in a 5G mobile communication system, such as a Central Unit (CU, Central Unit) and a Distributed Unit (DU, Distributed Unit), and the like. The terminal may be a mobile phone (or handset), or other device capable of sending or receiving wireless signals, including a User Equipment (UE), a Personal Digital Assistant (PDA), a wireless modem, a wireless communicator, a handheld device, a laptop computer, a cordless phone, a Wireless Local Loop (WLL) station, a CPE (Customer Premise Equipment) or mobile smart hotspot capable of converting mobile signals to WiFi signals, a smart appliance, or other device capable of autonomously communicating with a mobile communication network without human operation, etc. In addition, the terms "system" and "network" are often used interchangeably herein.
In order to implement information indication for performing PDCP data replication between a network and a terminal, an embodiment of the present invention provides a MAC layer multiplexing method, which is applied to a network device, and 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 a 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 to which the duplicated PDCP data is transferred. Herein, the PDCP data copy (duplicated PDCP PDU) refers to a copy for an original PDCP PDU. In the embodiment of the present invention, the original PDCP data (i.e., PDCP PDU) and the copied PDCP PDU (i.e., PDCP data copy) are transmitted through two RLC entities. The configuration information may be specifically sent to the corresponding terminal through a radio resource control RRC dedicated signaling.
Before the above step 21, the network device may 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 configuration information, the embodiment of the invention can realize the information indication for carrying out the PDCP data copying 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 a PDCP data copying function.
Here, if the PDCP data copy function is enabled, it means that the PDCP data copy function of the first logical channel is enabled, and if not, it means that the PDCP data copy function of the first logical channel is not enabled.
2) Second indication information indicating whether a PDCP data copy function of the first logical channel is available.
Here, if the PDCP data copy function is available, it indicates whether the first logical channel supports the PDCP data copy function. If the PDCP data copy function of the first logical channel needs to be enabled, the network device may further send an activation instruction for activating the PDCP data copy function of the first logical channel to the terminal, for example, the network device sends an activation instruction for activating the PDCP data copy function of the first logical channel to the terminal through a MAC Control Element (MAC CE) to enable the PDCP data copy function.
3) Third indication information indicating a second logical channel used for PDCP data duplication in common with the first logical channel.
Here, the RRC layer of the network device may add an Information Element (IE) in the first logical channel configuration to indicate which logical channels are paired or grouped. For example, an LCH configuration of LCH1 is augmented with IE: the pilot regional channel identity is 2, which indicates that the LCH1 and LCH2 are paired and used together for PDCP duplicate function.
4) A first channel identification of a first logical channel, wherein the first channel identification is the same channel identification configured for a logical channel used for transmitting duplicated PDCP data.
Here, the RRC layer of the network device may configure the same Logical Channel Identification (LCID) for the at least two LCHs, and thus, the at least two logical channels having the same LCID may be identified as a channel group transmitting the original PDCP data and the PDFCP data copy.
5) And representing a first data bearer identification for carrying a first logical channel, wherein the first data bearer identification is the same data bearer identification configured for the logical channel for transmitting the duplicated PDCP data, and the channel identifications configured for different logical channels are different.
Here, the RRC layer of the network device may configure different LCIDs for at least two LCHs, but the LCHs correspond to the same data bearer identification (DRB ID), so that at least two logical channels having different LCIDs but the same data bearer identification can be identified as a channel group for transmitting the original PDCP data and the PDFCP data copy.
Corresponding to the method of the network device side, an embodiment of the present invention further provides a method for multiplexing an MAC layer, where when applied to a terminal side, as shown in fig. 3, the method includes:
step 31, the terminal receives configuration information of a first logical channel sent by the 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.
Here, the terminal may receive configuration information of the first logical channel transmitted by the network device through RRC dedicated signaling.
Through the above steps, the embodiment of the invention can realize the information indication for carrying out the PDCP data copying 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 set of logical channels may include at least two LCHs.
For example, for the first indication information, if the configuration information of the received two or more logical channels includes an indication that the corresponding logical channel enables the PDCP data duplication function, the terminal uses the two or more logical channels as a logical channel group for transmitting duplicated PDCP data.
For another example, when the configuration information of the two or more logical channels received by the terminal includes information indicating that the PDCP data duplication function for the corresponding logical channel is available and the PDCP data duplication function is activated, the two or more logical channels are set as a logical channel group for transmitting the duplicated PDCP data.
For another example, the terminal may use the first logical channel and the second logical channel as a logical channel group for transmitting duplicated PDCP data according to the third indication information directly.
For another example, for the fourth indication information, the terminal may determine a logical channel group for transmitting the duplicated PDCP data according to the same channel identifier configured for the logical channel for transmitting the duplicated PDCP data.
For another example, for the fifth indication information, the terminal may determine a logical channel group for transmitting the duplicated PDCP data according to the same data bearer identifier configured for the logical channel for transmitting the duplicated PDCP data.
After determining a logical channel group for transmitting the duplicated PDCP data, the terminal may transmit data of each logical channel in the logical channel group through an uplink resource.
As an implementation manner, the same uplink resource transmits data of at most one logical channel in the logical channel group. At this time, the terminal may select one logical channel in the logical channel group, and multiplex 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.
Here, the same uplink resource may be the same Transport Block (Transport Block). Specifically, at least two LCHs for PDCP duty have the same scheduling priority, and on each available uplink resource, the terminal (UE) MAC layer selects only one LCH and multiplexes the LCH data onto the MAC PDU, and if the MAC PDU has remaining uplink resources available, the terminal can use data on other LCHs than the at least two LCHs.
An example of this implementation is given in fig. 4, where each rectangular box in fig. 4 represents one PDCP PDU and the same padding box represents the same PDCP PDU (i.e., original PDCP PDU data and PDCP PDU data copy), where LCH1 and LCH2 are 2 logical channels in a logical channel group and LCH3 is another channel. The transport blocks 1 and 2 may be transport blocks transmitted on different carriers at the same time, or transport blocks transmitted on the same/different carriers at different times. It is assumed here that the UE processes transport block 1 first and then transport block 2. The LCH1 and LCH2 belong to the same bearer, have the same scheduling priority, and have a higher scheduling priority than LCH3, i.e. the data on bearer 1(LCH1 and LCH2) are multiplexed onto the MAC PDU preferentially during MAC multiplexing, and the data on LCH3 is multiplexed only after the priority bit rate requirement of bearer 1 is met. It can be seen that the data of the LCH1 and LCH2 are multiplexed in different transport blocks 1 and 2, respectively, in fig. 4, so that it can be guaranteed that the same PDCP PDU does not exist in the same transport block.
As another implementation manner, 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. In this case, the following different situations are presented:
a) the terminal may maintain the amount of data that each logical channel in the group of logical channels has been delivered to the MAC layer; 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; and multiplexing the data transmitted by each logic channel through the current uplink resource to the MAC PDU of the current uplink resource.
Here, the UE MAC layer maintains a variable (assumed to be Bi) for each LCH in the logical channel group, indicating the amount of data that this LCH has delivered to the UE MAC layer. By comparing the Bi values of the LCHs, the data of the LCHs multiplexed on each uplink resource can be ensured to be different.
b) The terminal may maintain a difference in the amount of data that has been delivered to the MAC layer for every two logical channels in the logical 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; and 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.
Here, taking two LCHs as an example, the UE MAC layer maintains a variable Ci for each of the two LCHs, indicating the difference between the data amounts delivered by the two LCHs to the UE MAC, e.g., Ci ═ (data amount delivered by LCH1 to the UE MAC-data amount delivered by LCH2 to the UE MAC). Based on the Ci value, it can be ensured that the data of the two LCHs multiplexed on each uplink resource is not the same.
An example of this implementation is given in fig. 5, where each rectangular box in fig. 5 represents one PDCP PDU and the same padding box represents the same PDCP PDU (i.e., original PDCP PDU data and PDCP PDU data copy), where LCH1 and LCH2 are 2 logical channels in a logical channel group and LCH3 is another channel. Assume that LCH1 and LCH2 belong to the same bearer with the same scheduling priority and are higher than the scheduling priority of LCH 3. Transport block 1 is the first transmission resource, and multiplexes only LCH1 and other LCH's (i.e., LCH3) data, not LCH2 data. This time the LCH1 delivers the UE MAC 5 PDUs and the LCH's priority bit rate requirement is met, so the difference Bi is updated to 5. Each MAC multiplexing thereafter starts from LCH 2. And only multiplexing 3 PDUs (channel data units) of LCH2 because the uplink resource corresponding to the transmission block 2 is limited, and updating the difference value Bi to 2. Since the difference Bi is 2, a maximum of 2 PDUs of LCH2 are multiplexed. However, the priority bit rate requirement of the LCH is not yet met, so the PDUs of LCH1 are continuously multiplexed, 3 PDUs are multiplexed to meet the requirement, and the difference Bi is updated to 3. It can be seen that, in fig. 5, the data of LCH1 and LCH2 can be multiplexed in the same transport block (e.g., in transport block 3), but the difference-based multiplexing can ensure that the same PDCP PDU does not exist in the same transport block.
c) The terminal may maintain a sequence number of 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.
Here, the PDCP or RLC layer of the terminal may add the same flag to the original PDCP PDU and the duplicated PDCP PDU, such as the same sequence number in the header of the two PDUs or the same sequence number in the end of the two PDUs. The UE MAC layer can guarantee that the data multiplexed on the same uplink resource (i.e. one transport block) on the two LCHs are different based on the specific sequence number.
An embodiment of the present invention further provides a method for multiplexing a media access control MAC layer, which is applied to a terminal, and as shown in fig. 6, the method includes:
step 61, 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.
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 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.
As another implementation manner, the data of more than two logical channels in the logical channel group are transmitted in the same uplink resource, and the data transmitted by the more than two logical channels through the same uplink resource are different:
the terminal may maintain the amount of data that each logical channel in the group of logical channels has been delivered to the MAC layer; 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 may maintain a difference in the amount of data that has been delivered to the MAC layer for every two logical channels in the logical 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; and 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 may maintain a sequence number of 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.
It can be seen from the above that, the embodiment of the present invention can implement the information indication for the PDCP data replication between the network and the terminal, and can ensure that the PDCP PDU and the PDCP data replication thereof are not multiplexed in the same transport block, thereby ensuring the reliability gain of the PDCP replication.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for MAC layer multiplexing on a network device side in any of the above method embodiments.
Embodiments of the present invention further provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements the steps in the method for MAC layer multiplexing on a terminal side in any of the above method embodiments.
Based on the above method, the embodiment of the present invention further provides a network device 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 a 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 duplicated packet data convergence protocol PDCP data.
Here, the indication information is first indication information indicating whether the first logical channel enables a PDCP data copy 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 indicating a second logical channel used for PDCP data duplication with the first logical channel; or, the indication information is a first channel identifier of a first logical channel, where the first channel identifier is a same channel identifier configured for a logical channel used for transmitting 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 a 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.
The transceiver 72 is specifically configured to send configuration information of the first logical channel to the terminal through a radio resource control, RRC, dedicated signaling.
When the indication information is second indication information indicating whether the PDCP data copy function of the first logical channel is available, the transceiver 72 is further configured to send an activation instruction for activating the PDCP data copy function of the first logical channel to the terminal.
Further, the transceiver 72 is further configured to send 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. 8, another schematic structural diagram of a network device according to an embodiment of the present invention includes: 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, which computer program when executed by the processor 801 performs the steps of: and sending configuration information of a first logical channel to the terminal, wherein the configuration information of the first logical channel comprises indication information of the logical channel for transmitting the duplicated packet data convergence protocol PDCP data.
In FIG. 8, the bus architecture may include any number of interconnected buses and bridges, with one or more processors, represented by the processor 801, and various circuits, represented by the memory 803, linked together. 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 802 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus 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, the computer program when executed by the processor 803 may also implement the following steps: and sending the configuration information of the first logic channel to the terminal through a Radio Resource Control (RRC) dedicated signaling.
Optionally, the computer program when executed by the processor 803 may also implement the following steps: and sending an activation instruction for activating a PDCP data copy function of the first logical channel to the terminal.
Optionally, the computer program when executed by the processor 803 may also implement the following steps: transmitting an activation instruction for activating a 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 for transmitting duplicated packet data convergence protocol PDCP data.
Here, the indication information is first indication information indicating whether the first logical channel enables a PDCP data copy 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 indicating a second logical channel used for PDCP data duplication with the first logical channel; or, the indication information is a first channel identifier of a first logical channel, where the first channel identifier is a same channel identifier configured for a logical channel used for transmitting 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 a 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.
Preferably, the processor 91 is configured to determine a logical channel group for transmitting 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 an uplink resource; 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.
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 one logical channel in the logical channel group at most, and multiplex 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.
Preferably, the transceiver 92 is further configured to transmit data of two or more logical channels in the logical channel group in the same uplink resource, and the data transmitted by the two or more logical channels through the same uplink resource are different, and maintain the data amount 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, maintaining a difference value of data quantity delivered to the MAC layer by every two logical channels in the logical 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; and 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, maintaining a sequence number of 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.
Referring to fig. 10, another structure of a terminal according to an embodiment of the present invention is shown, where 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 stored on the memory 1003 and executable on the processor 1001, the computer program when executed by the processor 1001 implementing the steps of: receiving configuration information of a first logical channel sent by a network device, wherein the configuration information of the first logical channel comprises 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, with one or more processors represented by processor 1001 and various circuits of memory represented by memory 1003 being linked together. 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 1002 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1004 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 1001 is responsible for managing a bus architecture and general processes, and the memory 1003 may store data used by the processor 1001 in performing operations.
Here, the indication information is first indication information indicating whether the first logical channel enables a PDCP data copy 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 indicating a second logical channel used for PDCP data duplication with the first logical channel; or, the indication information is a first channel identifier of a first logical channel, where the first channel identifier is a same channel identifier configured for a logical channel used for transmitting 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 a 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.
Optionally, the computer program when executed by the processor 1003 may further implement the following steps: and determining a logical channel group for transmitting the duplicated PDCP data according to the configuration information of the first logical channel.
Optionally, the computer program when executed by the processor 1003 may further implement the following steps: transmitting data of each logical channel in the logical channel group through uplink resources; 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.
Optionally, the computer program when executed by the processor 1003 may further implement the following steps: when the same uplink resource transmits the data of one logical channel in the logical channel group at most, selecting one logical channel in the logical channel group, and multiplexing 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.
Optionally, the computer program when executed by the processor 1003 may further implement the following steps: transmitting data of more than two logic channels in the logic channel group at the same uplink resource, and maintaining the data volume delivered to the MAC layer by each logic channel in the logic channel group when the data transmitted by the more than two logic channels through the same uplink resource are different; 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, maintaining a difference value of data quantity delivered to the MAC layer by every two logical channels in the logical 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; and 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, maintaining a sequence number of 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.
Referring to fig. 11, an embodiment of the present invention provides a terminal 110, including: a processor 111 and a transceiver 112.
The transceiver 112 is 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.
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 one logical channel in the logical channel group at most, and multiplex 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.
Preferably, the transceiver 112 is further configured to transmit data of two or more logical channels in the logical channel group in the same uplink resource, and the data transmitted by the two or more logical channels through the same uplink resource are different, and maintain the data amount 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, maintaining a difference value of data quantity delivered to the MAC layer by every two logical channels in the logical 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; and 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, maintaining a sequence number of 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.
Referring to fig. 12, another structure of a terminal according to an embodiment of the present invention is shown, where 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 stored on the memory 1203 and executable on the processor 1201, the computer program when executed by the processor 1201 performing the steps of: transmitting 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.
In fig. 12, the bus architecture may include any number of interconnected buses and bridges, with various circuits linking one or more processors, represented by the processor 1201, and memory, represented by the memory 1203. 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 1202 may be a number of elements including a transmitter and a receiver that provide a means for communicating with various other apparatus over a transmission medium. The user interface 1204 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 1201 is responsible for managing a bus architecture and general processing, and the memory 1203 may store data used by the processor 1201 in performing operations.
Optionally, the computer program when executed by the processor 1203 may further implement the following steps: and determining a logical channel group for transmitting the duplicated PDCP data according to the configuration information of the first logical channel.
Optionally, the computer program when executed by the processor 1203 may further implement the following steps: when the same uplink resource transmits the data of one logical channel in the logical channel group at most, selecting one logical channel in the logical channel group, and multiplexing 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.
Optionally, the computer program when executed by the processor 1203 may further implement the following steps: transmitting data of more than two logic channels in the logic channel group at the same uplink resource, and maintaining the data volume delivered to the MAC layer by each logic channel in the logic channel group when the data transmitted by the more than two logic channels through the same uplink resource are different; 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, maintaining a difference value of data quantity delivered to the MAC layer by every two logical channels in the logical 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; and 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 protecting 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.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units is only one logical division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment of the present invention.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: various media capable of storing program codes, such as a U disk, a removable hard disk, a ROM, a RAM, a magnetic disk, or an optical disk.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall 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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