WO2017143818A1

WO2017143818A1 - Method and device for data processing in multi-connection system, and computer storage medium

Info

Publication number: WO2017143818A1
Application number: PCT/CN2016/107416
Authority: WO
Inventors: 施小娟; 黄河
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-02-26
Filing date: 2016-11-28
Publication date: 2017-08-31
Also published as: CN107135547A; CN107135547B

Abstract

The present application proposes a method and a device for data processing in a multi-connection system, and a computer storage medium. The method comprises: a user plane entity performing logical channel priority grouping; the user plane entity determining, according to transmission resource information, the logical channel priority grouping corresponding to the current logical channel priority processing; the user plane entity performing logical channel priority processing independently on each determined logical channel priority grouping; and the user plane entity performing packet multiplexing on each determined logical channel priority grouping.

Description

Data processing method, device and computer storage medium in multi-connection system

Technical field

The present invention relates to the field of mobile communications, and in particular, to a data processing method, apparatus, and computer storage medium in a multi-connection system.

Background technique

After a few decades of development, cellular mobile communication technology has entered the 4G era, and in order to meet the higher, faster and newer communication needs of the foreseeable future, the performance has begun to study the future 5G technology. At present, the industry's generally recognized 5G technology goal is: to achieve 1000 times mobile data traffic growth per region by 2020, 10 to 100 times per user throughput growth, 10 to 100 times the number of connected devices, low power The device has 10 times longer battery life and a 5x end-to-end delay.

The two most significant technical goals of the 5G technology goal are to achieve an increase in throughput and user peak rate by one to two orders of magnitude. After analysis, the industry has found that it is impossible to achieve 5G technical goals by simply enhancing or upgrading existing networks. Therefore, it is necessary to accelerate the deployment of new networks and new technologies based on the further evolution of existing networks and existing technologies. Research and other aspects of exploration.

In terms of 5G network deployment strategy, UDN (Ultra Dense Network) and high-frequency bands with larger bandwidth (such as 500MHz-1GHz), such as bands above 6GHz, are considered by the industry to be promising in future network development. Two means. Among them, the densely deployed network refers to densely deploying low power nodes (LPNs) in indoor and/or outdoor hotspot areas to provide small cell coverage. Conceptually, LPN refers to transmission power than conventional The macro base station has a low transmission power and a coverage area smaller than that of the conventional macro base station (for example, several tens of meters), and specifically exists in the form of a Pico Node or a home base station (Femto/Home ( e) NB), wireless relay access equipment (Relay), and any other possible network access of base station nodes or wireless networks that meet the above concepts node. UDN can effectively overcome the new features of traditional cellular wireless networks due to their wide coverage, uniform coverage, and fixed coverage characteristics, which cannot meet most of the communication services in the future 5G communication, which are concentrated in indoor and/or outdoor hotspots. The use of high-frequency bands can overcome the current situation that the low-frequency band has been stretched, providing sufficient bandwidth for future 5G communication systems.

In the field of new technology research, designing a shorter physical frame length, more flexible uplink and downlink configuration, a new physical layer frame (or subframe) structure with simpler and faster feedback mechanism, and designing an enhanced communication process based on this are widely recognized by the industry. The important direction of the 5G new technology.

The new technology coupled with the new network topology strategy together constitutes a new radio access technology (nRAT, new Radio Access Technology) that achieves 5G technology goals. nRAT can achieve 5G technology goals. However, research and commercialization of any technology are gradually advanced. It is necessary to use nRAT to provide services for user equipment (UE) in one step. On the one hand, it requires a large number of long-term technical research. Work overcomes many problems in the independent network of nRAT, which leads to serious delay in the commercialization of 5G technology. On the other hand, directly abandoning the existing network and deploying the wireless network using nRAT on a large scale will also waste the existing investment. Therefore, the current general consensus in the industry is: Phase 1 of the 5G (Phase I), deploying a base station (such as LPN) using nRAT in the coverage or coverage boundary of a base station device (such as a macro base station) already deployed on the existing network. The two jointly form a radio access network to jointly serve the UE. For example, a base station that uses 4G LTE (Long Term Evolution) technology and a LPN that uses nRAT form a multi-connection system to jointly transmit data for the UE, that is, the UE simultaneously adopts LTE. The base station of the technology communicates with the LPN adopting nRAT, and the UE is in a multi-connection state.

The base station adopting the LTE technology and the LPN adopting the nRAT jointly transmit data for the UE, so as to achieve the 5G technical goal by utilizing the low delay and high throughput characteristics of the nRAT, thereby providing users with better and faster services. However, although the LPN using nRAT implements low-latency, high-throughput transmission at the bottom layer, such as the physical layer (L1), or the physical layer and the medium access control layer (MAC, Media Access Control), the multi-connection system The underlying data is delivered to the upper layer, such as Layer 2 Radio Link Control (RLC) layer, and the RLC layer needs to sort data from different connections to ensure that it is going to a higher layer protocol layer, such as a packet. The data submitted by the Data Convergence Protocol (PDCP) layer is in order. There is a huge difference in latency and throughput between LTE and data from the underlying NRAT, LTE The data rate on the connection is much lower than the data rate on the nRAT. It is highly probable that the data packets with the data sequence number on the nRAT have been transmitted, but the data packet with the relatively high data sequence number on the LTE connection has not been transmitted yet. Therefore, layer 2 (such as the RLC layer) needs to wait for these data packets whose data sequence numbers are relatively high on the LTE connection, resulting in a decrease in the overall data rate, and the 5G Phase I cannot achieve the 5G technical goal by using the nRAT through multiple connections. .

Summary of the invention

In order to solve the existing technical problems, embodiments of the present invention provide a data processing method, apparatus, and computer storage medium in a multi-connection system.

The technical solution of the embodiment of the present invention is implemented as follows:

An embodiment of the present invention provides a data processing method in a multi-connection system, including:

The user plane entity performs logical channel priority grouping;

The user plane entity determines, according to the transmission resource information, a logical channel priority group corresponding to the current logical channel priority processing;

The user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups;

The user plane entity separately performs packet multiplexing on each of the determined logical channel priority packets.

Optionally, the user plane entity is located on the UE and/or the base station.

Optionally, the user plane entity is a MAC entity.

Optionally, performing a logical channel priority grouping by the user plane entity includes:

The user plane entity divides all logical channels configured for the UE into multiple logical channel priority packets, or the user plane entity divides all transmitted network interconnection protocol flows of the UE into multiple logical channel priority packets.

The user plane entity performs logical channel priority grouping according to an indication of a radio resource control (RRC) message or a medium access control layer control information (MAC CE, Media Access Control Control Element) or according to a set rule.

Optionally, when the user plane entity adjusts the logical channel priority packet to which the logical channel or the IP flow belongs, according to the RRC message or the MAC CE indication, or when there is an unavailable connection in the UE multiple connection and When the logical channel or IP flow to which the IP flow belongs is adjusted using the logical channel of the unavailable connection, the logical channel or IP flow continues to use the logical channel or IP flow when it belongs to the new logical channel priority packet. The value of the variable Bj is used in the original logical channel priority grouping or the variable initial value is used.

Optionally, when the user plane entity adjusts the logical channel priority packet to which the logical channel or IP flow belongs according to the RRC message or the MAC CE indication, or when there is an unavailable connection in the UE multiple connection and uses the unavailable connection When the logical channel or the logical channel priority packet to which the IP flow belongs is adjusted, the logical channel or IP flow belongs to the new logical channel priority packet, and the original logical channel priority group is used differently than the logical channel or IP flow. Configuration parameter in the configuration parameter indicated by RRC or MAC CE.

Optionally, the method previously includes: obtaining transmission resource information.

Optionally, obtaining the transmission resource information includes:

The transmission resource information is obtained from a physical layer entity or a resource scheduling entity.

Optionally, the transmission resource information includes at least one of the following:

The RAT used to transmit resource information;

The physical layer entity used to transmit resource information;

a connection packet used to transmit resource information;

a transmission channel used to transmit resource information;

a network slice used to transmit resource information;

The scheduling identifier used when scheduling resource information scheduling.

Optionally, the user plane entity determines, according to the transmission resource information, that the logical channel priority group corresponding to the current logical channel priority processing includes:

The user plane entity determines the logical channel priority group corresponding to the current logical channel priority processing according to the mapping relationship between the transmission resource information and the logical channel priority grouping.

Optionally, the user plane entity according to the RRC message or the transmission resource information indicated by the MAC CE The mapping relationship with the logical channel priority packet determines a mapping relationship between the transmission resource information and the logical channel priority packet.

Optionally, when the transmission resource information is a connection packet used by the transmission resource, the user plane entity according to the RRC message or the connection included by each connection packet indicated by the MAC CE, and the transmission resource information according to the RRC message or the MAC CE indication The mapping relationship with the logical channel priority packet determines a mapping relationship between the transmission resource information and the logical channel priority packet.

Optionally, the user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups, respectively:

Allocating resources for each of the determined logical channel or network interconnection protocol flows within each of the determined logical channel priority packets;

The resources to which each logical channel is allocated are notified to the upper user plane entity corresponding to each logical channel.

Optionally, the upper user plane entity includes: an RLC layer entity or a PDCP layer entity.

Optionally, performing packet multiplexing on the determined logical channel priority group by the user plane entity respectively includes:

The upper layer user plane entity data packets received on different logical channels in the same logical channel priority group are grouped into one data packet of the user plane entity.

Optionally, the user plane entity processes the logical channel priority packet by one or more logical channel priority functional units.

Optionally, the user plane entity processes the logical channel priority packet by one or more multiplexing functional units.

The embodiment of the invention further provides a data processing device in a multi-connection system, comprising:

a grouping module configured to perform logical channel priority grouping;

a packet selection module, configured to determine, according to the transmission resource information, a logical channel priority packet corresponding to the current logical channel priority processing;

a priority processing module configured to separately perform logical channel priority processing on each of the determined logical channel priority groups;

a multiplexing module configured to separately perform the determined number of each logical channel priority grouping According to packet multiplexing.

Optionally, the apparatus is provided to the UE and/or the base station.

Optionally, the grouping module is configured to:

All logical channels configured for the UE are divided into multiple logical channel priority packets, or all the transmitted network interconnection protocol flows of the UE are divided into multiple logical channel priority packets.

Optionally, the grouping module is configured to:

The logical channel priority grouping is performed according to an indication of the RRC message or the MAC CE, or according to the set rule.

Optionally, the apparatus further includes: a packet information acquiring module configured to obtain the transmission resource information.

Optionally, the group information acquiring module is configured to:

Optionally, the packet selection module is configured to:

The logical channel priority group corresponding to the logical channel priority processing is determined according to the mapping relationship between the transmission resource information and the logical channel priority grouping.

Optionally, the packet selection module is further configured to:

The mapping relationship between the transmission resource information and the logical channel priority packet is determined according to a mapping relationship between the transmission resource information indicated by the RRC message or the MAC CE and the logical channel priority packet.

Optionally, the multiplexing module is configured to:

The embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions, when executed, causing at least one processor to execute the data processing method in the multi-connection system.

Compared with the prior art, the embodiment of the invention has the following beneficial effects:

Data processing method, device and calculation in multi-connection system proposed by embodiment of the present invention The storage medium can solve the problem that the prior art connection drags down the overall data transmission rate of the UE due to the difference in data transmission rate between the nRAT connection and the prior art connection (such as 4G LTE connection) in the 5G Phase I multi-connection system. Improve the speed of data processing in multi-connection systems.

DRAWINGS

1 is a schematic diagram of a 5G Phase I multi-connection system according to the related art;

2 is a schematic diagram of a 5G Phase I multi-connection system according to the related art;

3 is a schematic diagram of a related art multi-connection architecture applied to a 5G Phase I multi-connection system;

4 is a flowchart of a data processing method in a multi-connection system according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a data processing apparatus in a multi-connection system according to an embodiment of the present invention; FIG.

6 is a protocol architecture diagram (UE) for implementing the data processing method of the present invention in Embodiment 1;

7 is a data processing effect diagram of the first embodiment and the second embodiment;

8 is a protocol architecture diagram (base station) for implementing the data processing method of the present invention in Embodiment 1;

9 is a protocol architecture diagram (UE) for implementing the data processing method of the present invention in Embodiment 2;

10 is a protocol architecture diagram (UE) for implementing the data processing method of the present invention in Embodiment 3;

11 is a data processing effect diagram of the third embodiment;

12 is a protocol architecture diagram (UE) for implementing the data processing method of the present invention in Embodiment 4;

Figure 13 is a diagram showing the effect of data processing in the fourth embodiment.

detailed description

The embodiments of the present invention will be described with reference to the accompanying drawings, and the embodiments and embodiments of the present application, in the case of no conflict, in order to clarify the present invention. The features in can be combined with each other arbitrarily.

5G Phase I implements multiple connections between the prior art and nRAT, that is, multiplexing existing technology connections that are already quite mature and connecting via nRATs to achieve 5G technology goals.

Base station by using Long Term Evolution (LTE) technology and LPN using nRAT as UE Data transmission, in order to take advantage of nRAT's low latency, high throughput characteristics to achieve 5G technology goals, to provide users with better quality and faster service. The 5G Phase I is jointly served by the UE by a multi-connection system composed of a base station using an existing related technology (such as 4G technology) and a base station using nRAT.

Figure 1 is a schematic diagram of a 5G Phase I multi-connection system. In the figure, the upper part of the dotted line is the core network (CN, Core Network) side, and the lower part of the dotted line is the access network (RAN, Radio Access Network) side. The base station device (100+120) adopting the LTE technology on the RAN side and the base station device (110+120) using the nRAT technology serve the UE 140, that is, the UE 140 simultaneously connects to two base stations through the air interface, and simultaneously performs on the two base stations. data transmission. In the related art, the base station (NB/eNB, Node B/evolved Node B) generally has a baseband processing unit (BBU, BaseBand Unit) and a radio remote unit (RRU). In FIG. 1, the LTE technology is adopted. The base station and the base station adopting the nRAT technology share the same BBU 120, that is, share all the baseband processing procedures and the scheduler, and the RRU 100 of the LTE technology base station and the RRU 110 of the nRAT technology are connected to the BBU 120 through the optical fiber, and the BBU 120 is connected to the core network device. For example, the control plane is connected to the core network mobility management entity (MME, Mobility Management Entity) through the S1-C interface, and the user plane is connected to the core network service gateway (S-GW, Serving Gateway) through the S1-U interface. In FIG. 1, the following line transmission is taken as an example. After the data of the Evolved Packet System bearer (EPS bearer) is sent by the S-GW to the BBU 120 through the S1-U interface, the LTE RRU 100 and the nRAT RRU 110 can pass through the air interface. Send to UE140.

Figure 2 is a schematic diagram of another 5G Phase I multi-connection system. Similarly, the upper portion of the dotted line in the figure is the CN side, and the lower portion of the broken line is the RAN side. The UE 240 is in a multi-connection state, and is simultaneously connected to at least two base stations, namely, the LTE eNB 200 and the nRAT eNB 210, through the air interface, while performing data transmission on the two base stations. In FIG. 2, the LTE eNB 200 and the nRAT eNB 210 each have independent baseband and radio frequency processing units, and the two are connected through an Xy230 interface. The Xy interface may be an ideal backhaul interface connected by optical fibers, or may be connected by other non-fiber methods. Non-ideal backhaul interface. Although the UE 240 is connected to the two eNBs, the S1 (S1-C and S1-U) connections are established only through the LTE eNB 200 and the core network. The following line transmission is taken as an example. The data of the same EPS bearer is sent by the S-GW through the S1-U interface. After being sent to the LTE eNB 200, the data may be allocated to the LTE eNB 200 to itself or after being allocated to the nRAT eNB 210 through the Xy interface, and then transmitted by the LTE eNB 200 and the nRAT eNB 210 to the UE 240 over the air interface.

It should be noted that, for convenience and clarity, the LTE base station and the nRAT base station in FIG. 1 and FIG. 2 are physically independent base stations. In the actual network, the LTE base station and the nRAT base station that implement the functions shown in FIG. 1 and FIG. 2 can be completely Deployed on the same physical device. In addition, it should be noted that only the UE and the two base stations are connected in FIG. 1 and FIG. 2, but the UE is connected to one LTE eNB and more than one nRAT eNB at the same time, that is, the UE is in multiple Connection Status. Therefore, the multi-connection system refers to that the UE is connected to at least two base stations, where the base station is a logical concept with a base station function, and does not limit the physical deployment characteristics of the two base stations.

Taking the multi-connection system shown in FIG. 1 and FIG. 2 as an example, if the multi-connection architecture of the related art is adopted, FIG. 3 is a schematic diagram of applying the multi-connection architecture in the related art to the 5G Phase I multi-connection system. The UE is simultaneously connected to the LTE eNB and the nRAT eNB through the air interface. In FIG. 3, the two eNBs share the PDCP layer (PDCP 300), and the RLC layer (RLC 310) and the MAC layer (MAC 320) are mixed and automatically retransmitted (HARQ, Hybrid). Automatic Repeat Request) Other functions beyond the function, and at the bottom of the protocol architecture, that is, HARQ and physical layer (PHY) use the protocol layer that applies the respective technologies, that is, HARQ-LTE applicable to LTE technology, applicable to nRAT The technology's HARQ-nRAT, PHY-LTE 330 with LTE technology, and PHY-nRAT 340 with nRAT technology. In the multi-connection architecture shown in FIG. 3, the data sent by the transmitting end to the receiving end through different connections (that is, different underlying protocols) needs to be sorted at the RLC layer to ensure that the data sent by the RLC layer to the PDCP layer is arranged as needed. For the data transmitted by the same EPS bearer on the radio bearer (RB, Radio Bearer) on the RAN side, the transmitting end RLC allocates part of data, such as RLC PDU1, to the LTE branch transmission, and part of the data, such as

RLC PDU

2, 3, 4 5,6 is allocated to the nRAT branch transmission. Due to the difference in transmission delay and throughput between LTE and nRAT, it is highly probable that the receiving end has already received the

RLC PDUs

2, 3, 4, 5, and 6 but has not received it. To the RLC PDU1, the data transmission is blocked, and the sender cannot continue to send new data packets, ultimately reducing the overall data transmission rate.

As shown in FIG. 4, an embodiment of the present invention provides a data processing method in a multi-connection system, including:

The user plane entity performs logical channel priority grouping;

The user plane entity separately performs independent logic on each of the determined logical channel priority groups. Channel priority processing;

Wherein, the user plane entity is a MAC entity;

Wherein the user plane entity is located on the UE and/or the base station;

The method also includes:

The UE is connected to multiple base stations;

The UE is connected to multiple base stations, including the UE connecting to multiple base stations through an air interface; the connection between the UE and multiple base stations, that is, multiple connections, including at least two connections;

Wherein each connection uses a first radio access technology (RAT) or uses a second RAT;

The base station in the embodiment of the present invention is a logical concept that has the function of a base station, and does not limit the physical deployment characteristics of the two base stations.

The user plane entity performs logical channel priority grouping including:

The user plane entity divides all logical channels (LCHs) configured for the UE into multiple logical channel priority packets, or the user plane entity divides all transmitted IP flows of the UE into multiple logical channel priority packets;

Wherein, the MAC CE is fixedly allocated to the first logical channel priority group;

The user plane entity performs logical channel priority grouping according to an indication of an RRC message or a MAC CE, or according to a protocol (set rule);

The user plane entity adjusts the logical channel priority packet to which the logical channel or the IP flow belongs according to the RRC message or the MAC CE indication, or when the connection is unavailable in the UE multiple connection, the logical channel or IP that uses the connection is required. When the logical channel priority packet to which the flow belongs is adjusted, the logical channel or IP flow continues to use the value of the variable (Bj) or the variable used in the original logical channel priority packet when it belongs to the new logical channel priority packet. Initial value

The user plane entity adjusts the logical channel priority packet to which the logical channel or the IP flow belongs according to the RRC message or the MAC CE indication, or when the connection is unavailable in the UE multiple connection, the logical channel or IP that uses the connection is required. When the logical channel priority group to which the flow belongs is adjusted, the logical channel or IP flow may use a configuration parameter different from the original logical channel priority group in the new logical channel priority group, and the specific configuration parameter is RRC or MAC CE. Means Show.

The transmission resource information is obtained from a physical layer entity or a resource scheduling entity;

The transmission resource information includes at least one of the following:

The RAT used to transmit the resource;

The physical layer entity used by the transmission resource;

The connection group used by the transmission resource;

The transport channel used by the transmission resource;

The network slice used by the transmission resource;

The scheduling identifier used when transmitting resource scheduling.

The user plane entity determines a mapping relationship between the transmission resource information and the logical channel priority group according to the RRC message or the indication of the MAC CE.

The user plane entity determines a mapping relationship between the transmission resource information and the logical channel priority packet according to the RRC message or the indication of the MAC CE, that is, determines a mapping relationship between the logical channel priority packet and the connection packet.

Determining, by the user plane entity, the logical channel priority packet corresponding to the logical channel priority processing according to the transmission resource information, the user plane entity determining the mapping relationship between the specified transmission resource information and the logical channel priority grouping according to the mapping relationship between the specified transmission resource information and the logical channel priority grouping Logical channel priority processing corresponding to the logical channel priority grouping;

Wherein, when the transmission resource information is a connection packet used by the transmission resource, the RRC message or the MAC CE also specifies the connection included in each connection packet.

Taking the two logical channel priority grouping as an example, the process of grouping and determining logical channel priority grouping and connection group mapping is explained:

All logical channels or all IP flows configured for the UE are divided into 2 logical channel priority groups, including:

The first logical channel priority packet and the second logical channel priority packet, and the first logical channel priority packet is mapped to the first connection packet, that is, the data on all logical channels in the first logical channel priority packet is in the first connection The packet includes a transport channel (TCH, Transport Channel) for transmission, and the second logical channel priority packet is mapped to the second connection packet, that is, 2 The data on all logical channels in the logical channel priority group is transmitted on the transport channel of the connection included in the second connection packet;

The connection in the first connection packet uses the first RAT, and the connection in the second connection packet uses the second RAT.

Taking the division into multiple logical channel priority groups as an example, the process of grouping and determining logical channel priority grouping and connection group mapping is explained:

Including a first logical channel priority packet, a second logical channel priority packet, ... and an Nth logical channel priority packet (N>2), the first logical channel priority packet is mapped to the first connected packet, that is, the first 1 The data on all logical channels in the logical channel priority packet is transmitted on the transport channel of the connection included in the first connection packet, and the other N-1 logical channel priority packets are respectively mapped to the N divided by the connection using the second RAT. On a connection packet, that is, data on all logical channels within a logical channel priority packet is transmitted on the transmission channel of the connection to which the corresponding connection using the second RAT is included.

Wherein, when the logical channel is divided into N logical channel priority packets (N>2), the connection in the first connection packet uses the first RAT, and the connection in the other N-1 connection packets uses the second RAT, which is to be used. The connection of the two RATs is divided into N-1 connection packets. Specifically, the connection using the second RAT is divided into N-1 connection packets according to the indication of the RRC, and the N-1 logical channel priority packets are respectively mapped to the N divided by the connection of the second RAT according to the indication of the RRC. - 1 connection group.

The user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups, and allocates resources for each logical channel or IP Flow in each logical channel priority group;

The user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups, and after allocating resources for each logical channel or IP Flow in each logical channel priority group, the method further includes:

Notifying the resource allocated to each logical channel to an upper user plane entity corresponding to each logical channel;

The upper user plane entity is an RLC layer entity or a PDCP layer entity;

The user plane entity processes the device through one or more logical channel priority functional units. The logical channel priority grouping: the user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups, and the functional unit responsible for logical channel priority processing in the user plane entity, that is, logic Processed in the Channel Priority Function Module (LCPFM), which can be processed in the same LCPFM; or processed in different LCPFMs respectively; or when the logical channel is divided into N (N>2) logical channels. In the case of level grouping, the first logical channel priority packet is processed in the first LCPFM, and the other N-1 logical channel priority packets are processed in the second LCPFM;

The user plane entity separately performs data packet multiplexing on each of the determined logical channel priority packets, including:

The upper layer user plane entity data packets received on different logical channels in the same logical channel priority group are grouped into one data packet of the user plane MAC entity.

The upper layer user plane entity is an RLC layer entity. After the MAC entity receives the data (RLC PDU) from the upper layer protocol entity (such as the RLC layer entity) on the logical channel, the RLC on each group of logical channel priority groups is respectively performed. The PDU performs data packet multiplexing, that is, the RLC PDUs received on different logical channels in the same logical channel priority group are grouped into one MAC PDU;

The user plane entity processes the logical channel priority group by using one or more multiplexing function units: the user plane entity respectively performs data packet multiplexing on each determined logical channel priority group, and may be in the same multiplexing function. Processing in a unit (MFM, Multiplexing Function Module); or processing in different multiplexing functional units respectively; or when the logical channel is divided into N (N>2) logical channel priority packets, the first logical channel priority grouping Processing in the first multiplexing functional unit, the other N-1 logical channel priority packets are processed in the second multiplexing functional unit;

The multiplexing function unit is a functional unit in the MAC entity that groups upper layer user plane entity data packets received on different logical channels into one data packet (MAC PDU) of the user plane MAC entity.

The packet MAC PDUs multiplexed in each group of logical channel priority packets are respectively transmitted on the transmission channels included in the connection packets mapped by each group of logical channel priority packets.

As shown in FIG. 5, an embodiment of the present invention further provides a data processing apparatus in a multi-connection system, including:

a grouping module configured to perform logical channel priority grouping;

a priority processing module, configured to separately perform logical channel priority processing on each of the determined logical channel priority groups;

And a multiplexing module configured to separately perform packet multiplexing on each of the determined logical channel priority packets.

The device is arranged at a UE and/or a base station.

The multiple connection means that the UE is connected to multiple base stations.

Specifically, the UE is connected to a plurality of base stations over an air interface; wherein each connection uses a first RAT or uses a second RAT.

The grouping module performing logical channel priority grouping refers to:

All logical channels configured for the UE are divided into multiple logical channel priority packets, or the user plane entity divides all transmitted network interconnection protocol flows of the UE into multiple logical channel priority packets.

Specifically, the performing, by the grouping module, the logical channel priority grouping refers to:

The logical channel priority grouping is performed according to an indication of the RRC message or the MAC CE, or according to the provisions of the protocol.

Specifically, the grouping module is further configured to:

Adjusting the logical channel priority packet to which the logical channel or IP flow belongs according to the RRC or MAC CE indication, or when there is an unavailable connection in the UE multiple connection and belonging to the logical channel or IP flow using the unavailable connection When the logical channel priority packet is adjusted, the logical channel or IP flow is continued to use the logical channel or IP flow to use the value of the variable Bj or the value in the original logical channel priority packet when the logical channel or IP flow belongs to the new logical channel priority packet. The initial value of the variable.

Specifically, the grouping module is further configured to:

Adjusting the logical channel priority packet to which the logical channel or IP flow belongs according to the RRC or MAC CE indication, or when there is an unavailable connection in the UE multiple connection and using the When the logical channel of the connection or the logical channel priority packet to which the IP flow belongs is adjusted, the logical channel or IP flow belongs to the new logical channel priority packet, and the original logical channel is used differently than the logical channel or IP flow. A configuration parameter in a level packet, the configuration parameter being indicated by RRC or MAC CE.

Optionally, the apparatus further includes a group information obtaining module configured to obtain transmission resource information.

The group information obtaining module is specifically configured to:

The packet selection module determines, according to the transmission resource information, that the logical channel priority group corresponding to the current logical channel priority processing refers to:

Specifically, the packet selection module is further configured to:

When the transmission resource information is a connection packet used by the transmission resource, the connection included in each connection packet indicated by the RRC message or the MAC CE, and the transmission resource information and the logical channel priority group according to the RRC message or the MAC CE indication The mapping relationship between the transmission resources determines the mapping relationship between the transmission resource information and the logical channel priority grouping.

The priority processing module separately performs logical channel priority processing on each of the determined logical channel priority packets, respectively:

Allocating resources for each logical channel or network interconnection protocol flow within each logical channel priority packet;

The upper user plane entity is: an RLC layer entity or a PDCP layer entity.

The multiplexing module respectively performs data packet multiplexing on each of the determined logical channel priority packets:

The upper layer user plane entity data packets received on different logical channels in the same logical channel priority group are grouped into data packets of one user plane MAC entity.

The priority processing module groups the logical channel priorities by one or more logical channel priority functional units.

The multiplexing module, the user plane entity processes the logical channel priority packet by one or more multiplexing functional units.

In practical applications, the grouping module, the packet selection module, the priority processing module, the multiplexing module, and the grouping information obtaining module may be a central processing unit (CPU), a microprocessor (MCU, a Micro Control Unit) in the device. ), digital signal processor (DSP, Digital Signal Processor) or programmable logic array (FPGA, Field-Programmable Gate Array) implementation.

It should be noted that the base station in the embodiment of the present invention does not limit its specific wireless space coverage attribute. In the spatial coverage attribute, the base station may be a set of one or a group of cells, or may be a set of one or a group of beams. The base station in the present invention does not limit the physical devices of the base stations to which the base station functions mentioned in the present invention are specific. The base station may include a baseband processing unit (BBU) and a remote radio unit (RRU) on the physical device, or may include a wireless cloud center (RCC) and a wireless remote system (Radio Remote). System, RSS), wherein the RSS can also be divided into a Radio Aggregation Unit (RAU) and a radio remote unit, so when the user plane entity and the data processing apparatus using the data processing method of the present invention are applied to the base station, It is implemented on any one of the above BBU, RRU, RCC, RSS, RAU of the base station.

Example 1

FIG. 6 is a schematic diagram of a protocol architecture for implementing the data processing method of the present invention. In this embodiment, the UE and the two base stations establish a connection, that is, a connection 1 (Connection 1) and a connection 2 (Connection 2), where the base station is a logical concept having a base station function, and the two are not limited. The physical deployment of the base station may be in the form of a BBU plus an RRU as shown in FIG. 1. When the protocol architecture diagram of FIG. 6 is applied to the base station side, the PDCP, the RLC, and the MAC are all in the BBU. PHY-LTE and PHY-nRAT are respectively located in two separate RRUs; specifically, they may also exist in the form of independent separated base stations as shown in FIG. 2, when the protocol architecture diagram of FIG. 6 is applied to the base station side, where The PDCP, RLC, MAC LCPFM and MAC MFM are located in the LTE eNB, while HARQ-LTE and PHY-LTE are located in the LTE eNB, and the HARQ-nRAT and PHY-nRAT are located in the nRAT eNB. The UE can already perform uplink and downlink information transmission with the two base stations, that is, the UE can already perform scheduling on the two base stations and perform uplink and downlink data transmission according to the scheduling indication.

In the first embodiment, three RBs (RB1, RB2, RB3) are established between the UE and the base station, where RB1 is a Signaling Radio Bearer (SRB) for transmitting control plane signaling between the UE and the base station. Or RB1 may also be a Data Radio Bearer (DRB) for carrying data transmission of an EPS bearer in an air interface, such as an EPS bearer in an air interface carrying a voice over Internet Protocol (VoIP) or a game. transmission. RB2 and RB3 are respectively DRBs, which are used to carry data transmissions of the corresponding EPS bearers in the air interface, such as data transmission of the EPS bearer carrying the file download, video, or web browsing services in the air interface. RB1 establishes the corresponding protocol entities PDCP entity1 and RLC entity1 on the PDCP layer and the RLC layer respectively, and the logical channel established by RB1 is LCH1; RB2 respectively establishes PDCP entiy2, RLC entity2, LCH2; RB3 respectively establishes PDCP entity3 , RLC entity3, LCH3.

The protocol architecture diagram shown in FIG. 6 is a protocol architecture diagram on the UE side, and the MAC layer establishes an LCPFM and an MFM. In this embodiment, the RRC or the MAC CE indicates that the RB1, the RB2, and the RB3 are divided into two logical channel priority packets, and the MAC performs the logical channel priority packet according to the indication information of the RRC, and is divided into two packets, and the first logical channel priority. The packet and the second logical channel priority packet, the first logical channel priority packet processes the priority of LCH1 and the MAC CE, and the second logical channel priority packet processes the priority of LCH2 and LCH3. At the same time, the RRC or the MAC CE also indicates a mapping relationship between the transmission resource information and the logical channel priority packet, so that the MAC entity implements the first logical channel priority grouping in the connection packet 1 (including the connection) when receiving the transmission resource information. 1) On the transmission, the second logical channel priority packet is transmitted on the connection packet 2 (including the connection 2), and the specific RRC or MAC CE indicates the transmission resource information and the logic. The mapping relationship between the channel priority packets may be implemented according to at least one of the following transmission resource information, including:

The physical layer entity used: in this embodiment, the connection packet 1 uses the physical layer entity PHY-LTE, the connection packet 2 uses the physical layer entity PHY-nRAT; the RRC or MAC CE indicates the first logical channel priority packet mapping to the physical layer entity On PHY-LTE, it is equivalent to indicating that the first logical channel priority packet is mapped to the connection packet 1 (including the connection 1), and the second logical channel priority packet is mapped to the physical layer entity PHY-nRAT, that is, The mapping of the second logical channel priority packet to the connection packet 2 (including connection 2) is indicated.

RAT used: In this embodiment, connection 1 uses LTE, and connection 2 uses nRAT; RRC or MAC CE indicates that the first logical channel priority packet is mapped to the RAT using LTE technology, that is, it indicates that the first logical channel is indicated. The priority packet is mapped onto the connection packet 1 (including the connection 1), indicating that the second logical channel priority packet is mapped to the RAT using the nRAT, that is, equivalent to indicating that the second logical channel priority packet is mapped to the connection packet 2 ( Includes connection 2).

The connected packet used: RRC or MAC CE indicates that the first logical channel priority packet is mapped onto the connected packet 1, indicating that the second logical channel priority packet is mapped onto the connected packet 2. Here, the RRC or MAC CE indicates that the connection packet 1 includes the connection 1, and the connection packet 2 includes the connection 2.

Transport channel used: In this embodiment, connection 1 uses TCH1, and connection 2 uses TCH2; RRC or MAC CE indicates that the first logical channel priority packet is mapped to TCH1, which is equivalent to indicating that the first logical channel priority packet is mapped. On connection packet 1 (including connection 1), the mapping of the second logical channel priority packet to TCH2 is indicated, which is equivalent to indicating that the second logical channel priority packet is mapped onto connection packet 2 (including connection 2).

Network slice used: In this embodiment, connection 1 belongs to network slice 1, and connection 2 belongs to network slice 2; RRC or MAC CE indicates that the first logical channel priority packet is mapped to the network slice, which is equivalent to indicating that the first logic is to be The channel priority packet is mapped onto the connection packet 1 (including the connection 1), indicating that the second logical channel priority packet is mapped onto the network slice 2, which is equivalent to indicating that the second logical channel priority packet is mapped to the connection packet 2 ( Includes connection 2).

The scheduling identifier used: In this embodiment, connection 1 uses scheduling identifier 1, and connection 2 uses scheduling identifier 2. RRC or MAC CE indicates that the first logical channel priority packet uses the scheduling identifier 1, That is, it is equivalent to instructing to map the first logical channel priority packet to the connection packet 1 (including the connection 1), and instructing the second logical channel priority packet to use the scheduling indicator 2, that is, indicating that the second logical channel priority is grouped. Map to connection group 2 (including connection 2).

As can be seen from the above description, the mapping relationship between the RRC or the MAC CE indicating the transmission resource information and the logical channel priority packet is equivalent to indicating the mapping relationship between the connection packet and the logical channel priority packet.

When the MAC entity receives the transmission resource from the connection 1 physical layer entity PHY-LTE or the resource scheduling entity, the MAC entity determines to perform logical channel priority processing on the first logical channel priority packet according to the transmission resource information. Here, the physical layer entity used by the transmission resource received by the MAC entity is a PHY-LTE entity, so it is determined that logical channel priority processing is performed on the first logical channel priority packet. Alternatively, the MAC entity determines that the received transmission resource uses LTE, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. Alternatively, the MAC entity determines that the received transmission resource is from connection 1, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. Alternatively, the MAC entity determines that the received transmission resource is from TCH1, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. Or, when the RRC or the MAC CE allocates different scheduling identifiers for the connection packet 1 and the connection packet 2, the MAC entity determines, according to the scheduling identifier used by the received transmission resource scheduling, that the received transmission resource is a connection group. The scheduling identifier of 1 is scheduled, so it is determined that logical channel priority processing is performed on the first logical channel priority packet, where the scheduling identifier is, for example, a Radio Network Temporary Identifier (RNTI). Or, in the future 5G network, the network is segmented by the service granularity to form different network slices. Assume that in this embodiment, the connection 1 and the connection 2 belong to different network slices, and the MAC entity according to the received transmission resource. The network slice used determines that the received transmission resource is on network slice 1, thus determining logical channel priority processing for the first logical channel priority packet.

The LCPFM performs logical channel priority processing on the first logical channel priority packet, and allocates the resource indicated in the transmission resource to the LCH1 and the MAC CE, that is, the first logical channel priority packet is mapped to the first connection packet. The first connection packet includes connection 1. The resource indicated in the transmission resource includes at least a quantity of data that can be transmitted, such as a number that can be transmitted. The number of bits, or the number of data bytes that can be transferred. Specifically, the resources indicated in the transmission resources are allocated to the LCH1 and the MAC CE, and the processing manner is the same as that in the related related technologies, for example, the LTE technology is used as an example, and the processing process is in the 3rd Generation Partnership Project (3GPP, the 3rd Generation Partnership). Project) described in Technical Specification 36.321, the process outlined here is:

Step 1: First, allocate resources according to the priority from high to low for all logical channels of Bj>0 (here, all logical channels in the first logical channel priority group in this embodiment). If Bj is set to infinity for a certain logical channel j, resources are allocated to this logical channel to ensure the transmission of all data to be transmitted on this logical channel before allocating resources to other lower logical channels.

Here, Bj is a variable independently maintained for each logical channel. The initial value is set to 0, each transmission time interval (TTI, Transmission Time Interval), and the value of Bj is incremented by PRB×TTI duration, where PBR is for each logical channel. Priority bitrate, when the value of Bj is incremented to the bucket size configured for each logical channel, the value of Bj goes to the bucket size.

Step 2: After the allocation of step 1, a MAC SDU having a size of N bits on the logical channel j is transmitted, then Bj=Bj-N;

Step 3: After the allocation of step 1, if there is any remaining resource indicated in the physical layer transmission scheduling indication, regardless of the value of Bj, the logical channel priority is strictly in accordance with the logical channel priority (also, this implementation) In this example, the logical channel in the first logical channel priority group is allocated resources, that is, when resources are allocated for one logical channel, if there are remaining resources after all the data to be transmitted on the logical channel is allocated, the continuation is continued. The next priority logical channel allocates resources until all resources are allocated;

In the above process, it is also necessary to minimize the segmentation of data packets (such as RLC SDU, retransmission RLC PDU, etc.). If segmentation is necessary, the segmentation should be maximized to use the resources indicated in the physical layer transmission scheduling indication. .

When receiving the transmission resource from the connection 2 physical layer (PHY-nRAT) or the resource scheduling entity, the MAC entity determines to perform logical channel priority processing on the second logical channel priority packet according to the transmission resource information, and the specific determination method is the same as above. description. The LCPFM performs logical channel priority processing on the second logical channel priority packet, and allocates resources indicated in the transmission resource to LCH2 and LCH3, that is, the second logical channel priority packet is also mapped to the second connection packet, and the second connection packet of this embodiment includes the connection 2. Similarly, the specific processing manner of allocating resources indicated in the transmission resources to LCH2 and LCH3 is the same as that in the related art.

When receiving transmission resources from connection 1 physical layer (PHY-LTE) and connection 2 physical layer (PHY-nRAT), or receiving transmission resources from connection 1 and connection 2 of the resource scheduling entity, the MAC entity is based on The resource information is transmitted, and logical channel priority processing is performed on the first logical channel priority packet and the second logical channel priority packet. The LCPFM performs independent logical channel priority processing on the first logical channel priority packet and the second logical channel priority packet, respectively, that is, the resource indicated in the transmission resource of the connection 1 is allocated to the LCH1 and the MAC CE, and the transmission resource of the connection 1 is connected. The resources indicated in the allocation are assigned to LCH2 and LCH3, that is, the first logical channel priority packet is mapped to the first connection packet, and the second logical channel priority packet is mapped to the second connection packet.

After the LCPFM allocates the resources, the MAC entity notifies the RLC entity corresponding to each logical channel to the RLC entity corresponding to each logical channel, that is, for LCH1, LCH2, and LCH3, respectively, to the RLC entity1, the RLC entity2, and the RLC entity3. Each RLC entity sends the formed RLC PDU to the MAC entity according to the notified resource allocation size group packet. Then, in this embodiment, the multiplexing function unit (MFM) separately performs the RLC PDU on each group of logical channel priority packets. Packet multiplexing, that is, the RLC PDU received from LCH1 and the MAC CE unified group packet generated by the MAC entity, can be grouped in one MAC PDU (in this embodiment, recorded as MAC PDU-packet 1); The RLC PDUs and the unified group packets received on the LCH3 can be grouped in one MAC PDU (referred to as MAC PDU-packet 2 in this embodiment).

After the MFM group is completed, the MAC PDU-packet 1 is transmitted on the transport channel TCH1 of the connection 1 (ie, the connection packet 1), and the MAC PDU-packet 2 is transmitted on the transport channel TCH2 of the connection 2 (ie, the connection packet 2). That is, the packet MAC PDUs multiplexed in each group of logical channel priority packets are respectively transmitted on the transmission channels included in the connection packets mapped by each group of logical channel priority packets.

It should be noted that, as shown in FIG. 6 , the protocol architecture diagram of the UE side corresponds to the base station side, and the base station side processes the data transmission of multiple UEs at the same time, and the base station side is responsible for processing multiple UEs by the unified logical channel priority function unit. Logical channel priority, but will set up separate multiplexing for each UE Functional unit. Taking 2 UEs as an example, FIG. 8 is a protocol architecture diagram of the base station side. The logical channel priorities of UE1 and UE2 are processed in the LCPFM, but the MAC PDU multiplexing functions of UE1 and UE2 are respectively in independent MFMs. deal with. Other embodiments are described with reference to the embodiments, and the following is only a textual description, and is not specifically illustrated.

Through the above processing procedure of the embodiment, the data processing effect as shown in FIG. 7 can be realized, that is, RB1 and MAC CE are implemented as a packet for logical channel priority processing, and then transmitted on connection 1, and RB2 and RB3 are performed as one packet. The logical channel priority is processed and transmitted on the connection 2, thereby solving the problem that for one RB, the connection 1 dragging the connection 2 due to the difference in data transmission rate between the two connections eventually causes the data transmission rate of the RB to decrease, eventually resulting in The problem of the overall data transmission rate of the UE is degraded.

Example 2

FIG. 9 is a schematic diagram of a protocol architecture for implementing the data processing method of the present invention. As in the first embodiment, the UE and the two base stations establish a connection, that is, a connection 1 (Connection 1) and a connection 2 (Connection 2), and the UE can already perform uplink and downlink information transmission with the two base stations. Similarly, the UE also establishes three RBs (RB1, RB2, RB3) with the base station, and other related descriptions are the same as in the first embodiment.

In the protocol architecture diagram shown in FIG. 9, the MAC layer establishes a logical channel priority functional unit LCPFM and two multiplexing functional units MFM, MFM1 and MFM2. Similarly, in this embodiment, the RRC or the MAC CE indicates that the RB1, the RB2, and the RB3 are divided into two logical channel priority packets, and the MAC performs the logical channel priority grouping according to the indication information of the RRC, and is divided into two groups, the first logic. The channel priority packet and the second logical channel priority packet, the first logical channel priority packet processes the priority of the LCH1 and the MAC CE, and the second logical channel priority packet processes the priorities of the LCH2 and the LCH3. At the same time, the RRC or the MAC CE also indicates a mapping relationship between the transmission resource information and the logical channel priority packet, so that the MAC entity implements the first logical channel priority grouping in the connection packet 1 (including the connection) when receiving the transmission resource information. 1) The upper transmission, the second logical channel priority packet is transmitted on the connection packet 2 (including the connection 2), and the mapping relationship between the transmission resource information and the logical channel priority packet is indicated by the specific RRC or MAC CE as in the first embodiment. When receiving transmission resources from the connection 1 physical layer (PHY-LTE) and / The processing of the LCPFM is the same as that of the first embodiment when receiving the transmission resource from the connection 2 physical layer (PHY-nRAT).

After the LCPFM allocates the resources, the MAC entity notifies the RLC entity corresponding to each logical channel to the RLC entity corresponding to each logical channel, that is, for LCH1, LCH2, and LCH3, respectively, to the RLC entity1, the RLC entity2, and the RLC entity3. Each RLC entity sends the formed RLC PDU to the MAC entity according to the notified resource allocation size packet, and then in this embodiment, the multiplexing function unit 1 (MFM1) performs the RLC PDU on the first logical channel priority packet. The data packet multiplexing, that is, the RLC PDU received from the LCH1 and the MAC CE unified group packet generated by the MAC entity, may be grouped in one MAC PDU (in this embodiment, recorded as MAC PDU-packet 1); the multiplexing functional unit 2 (MFM2) performs packet multiplexing on the RLC PDUs on the second logical channel priority group, that is, the RLC PDUs received from LCH2 and LCH3 are unified into groups, and can be grouped in one MAC PDU (this embodiment is recorded as MAC). PDU-packet 2). After the MFM1 group is completed, the MAC PDU-packet 1 is transmitted on the transport channel TCH1 of the connection 1 (ie, the connection packet 1); after the MFM2 group packet is completed, the MAC PDU is transmitted on the transport channel TCH2 of the connection 2 (ie, the connection packet 2). - Packet 2, thereby implementing packet MAC PDUs multiplexed in each set of logical channel priority packets, respectively, transmitted on the transport channels included in the connected packets mapped by each set of logical channel priority packets.

9 is a protocol architecture diagram of the UE side, corresponding to the base station side, because the base station side needs to simultaneously process data transmission of multiple UEs, and the base station side is responsible for processing logical channel priorities of multiple UEs by a unified logical channel priority function unit. However, an independent multiplexing function unit is set for each UE. If each UE in this embodiment establishes two connections as shown in FIG. 9, the base station side sets two independent MFMs for each UE ( MFM1 and MFM2). Through the above processing process of the embodiment, the data processing effect as shown in FIG. 7 can also be achieved.

Example 3

FIG. 10 is a schematic diagram of a protocol architecture for implementing the data processing method of the present invention in Embodiment 3. In this embodiment, the UE establishes a connection with three base stations, and connects 1 (Connection 1), Connection 2 (Connection 2), and Connection 3 (Connection 3). The UE can already transmit uplink and downlink information with three base stations. With the first embodiment, three UEs and the base station are established in the third embodiment. The RB, RRC or MAC CE indicates that RB1, RB2 and RB3 are divided into two logical channel priority packets. At the same time, the RRC or the MAC CE also indicates a mapping relationship between the transmission resource information and the logical channel priority packet, so that the MAC entity implements the first logical channel priority grouping in the connection packet 1 (including the connection) when receiving the transmission resource information. 1) On the transmission, the second logical channel priority group is transmitted on the connection packet 2 (including the connection 2 and the connection 3), and the specific RRC or MAC CE indicates the mapping relationship between the transmission resource information and the logical channel priority packet is similarly implemented. For example, the implementation may be implemented according to at least one of the following transmission resource information, including:

Physical layer entity used: In this embodiment, connection 1 uses physical layer entity PHY-LTE, connection 2 and connection 3 use physical layer entity PHY-nRAT; RRC or MAC CE indicates that first logical channel priority packet is mapped to physical layer On the physical PHY-LTE, it is equivalent to indicating that the first logical channel priority packet is mapped to the connection packet 1 (including the connection 1), and the second logical channel priority packet is mapped to the physical layer entity PHY-nRAT, that is, This is equivalent to indicating that the second logical channel priority packet is mapped to the connection packet 2 (including connection 2 and connection 3).

RAT used: In this embodiment, connection 1 uses LTE, connection 2 and connection 3 use nRAT; RRC or MAC CE indicates that the first logical channel priority packet is mapped to the RAT using LTE technology, which is equivalent to indicating that 1 Logical channel priority packet is mapped onto connection packet 1 (including connection 1), indicating that the second logical channel priority packet is mapped to the RAT using nRAT, which is equivalent to indicating that the second logical channel priority packet is mapped to the connection. Group 2 (including connection 2 and connection 3).

The connected packet used: RRC or MAC CE indicates that the first logical channel priority packet is mapped onto the connected packet 1, indicating that the second logical channel priority packet is mapped onto the connected packet 2. Here, the RRC or MAC CE indicates that the connection packet 1 includes the connection 1, and the connection packet 2 includes the connection 2 and the connection 3.

Transport channel used: In this embodiment, connection 1 uses TCH1, connection 2 uses TCH2, and connection 3 uses TCH3. RRC or MAC CE indicates that the first logical channel priority packet is mapped to TCH1, which is equivalent to indicating the first logic. The channel priority packet is mapped onto the connection packet 1 (including the connection 1), indicating that the second logical channel priority packet is mapped onto the TCH2 and/or the TCH3, which is equivalent to indicating that the second logical channel priority packet is mapped to the connection packet. 2 (including connection 2 and connection 3).

Network slice used: In this embodiment, connection 1 belongs to network slice 1, connection 2 and connection 3 belong to network slice 2; RRC or MAC CE indicates that the first logical channel priority packet is mapped to the network slice, which is equivalent to indicating The first logical channel priority packet is mapped onto the connection packet 1 (including the connection 1), indicating that the second logical channel priority packet is mapped onto the network slice 2, which is equivalent to indicating that the second logical channel priority packet is mapped to the connection. Group 2 (including connection 2 and connection 3).

Scheduling identifier used: In this embodiment, connection 1 uses scheduling identifier 1, and connection 2 and connection 3 use scheduling identifier 2. The RRC or MAC CE indicates that the first logical channel priority packet uses the scheduling identifier 1, that is, the mapping of the first logical channel priority packet to the connection packet 1 (including the connection 1), indicating that the second logical channel priority grouping is performed. The use of the scheduling identifier 2 is equivalent to indicating that the second logical channel priority packet is mapped onto the connection packet 2 (including connection 2 and connection 3).

In the protocol architecture diagram shown in FIG. 10, two logical channel priority functional units, LCPFM1 and LCPFM2, are respectively established, and two multiplexing functional units, MFM1 and MFM2, are also respectively established. LCPFM1, MFM1, LCPFM2, and MFM2 may be in the same MAC entity, or LCPFM1 and MFM1 may be located in one MAC entity, such as MAC1 in FIG. 10, and LCPFM2 and MFM2 are located in another MAC entity, such as in FIG. MAC2. In this embodiment, according to the indication information of the RRC or the MAC CE, the logical channel priority packet is divided into two groups, the first logical channel priority packet and the second logical channel priority packet, and the first logical channel priority packet processing is performed. The priority of LCH1 is processed in LCPFM1, and the priority of the second logical channel priority packet processing LCH2 and LCH3 is processed in LCPFM2.

When the MAC entity receives the transmission resource from the connection 1 physical layer PHY-LTE or the resource scheduling entity, the MAC entity determines to perform logical channel priority processing on the first logical channel priority packet according to the transmission resource information. Here, the physical layer entity used by the transmission resource received by the MAC entity is a PHY-LTE entity, so it is determined that logical channel priority processing is performed on the first logical channel priority packet. Alternatively, the MAC entity determines that the received transmission resource uses the LTE technology, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. Or the MAC entity determines that the received transmission resource comes from connection 1, so it is determined to be the first Logical channel priority packets are processed for logical channel priority. Alternatively, the MAC entity determines that the received transmission resource is from TCH1, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. Or, when the RRC or the MAC CE allocates different scheduling identifiers for the connection packet 1 and the connection packet 2, the MAC entity determines, according to the scheduling identifier used by the received transmission resource scheduling, that the received transmission resource is a connection group. The scheduling identifier of 1 is scheduled, so it is determined that logical channel priority processing is performed on the first logical channel priority packet. Or, the MAC entity determines that the network slice used by the received transmission resource is the network slice 1, and therefore determines to perform logical channel priority processing on the first logical channel priority packet. The LCPFM1 performs logical channel priority processing on the first logical channel priority packet, and the specific processing procedure is the same as that in the first embodiment. When receiving transmission resources from the connection 2 physical layer entity (PHY-nRAT) and/or the connection 3 physical layer entity (PHY-nRAT), the LCPFM2 performs logical channel priority processing on the second logical channel priority packet, and transmits The resources indicated in the resource are allocated to LCH2 and LCH3, that is, the second logical channel priority packet is mapped to the second connection packet. In this embodiment, the second connection packet includes connection 2 and connection 3. Specifically, the specific processing manner of allocating the resources indicated in the connection 2 and/or the connection 3 physical layer transmission resources to the LCH 2 and the LCH 3 is the same as the processing in the related art. When receiving a transmission resource from a connection 1 physical layer entity (PHY-LTE) and receiving a transmission resource from a connection 2 physical layer entity (PHY-nRAT) and/or a connection 3 physical layer entity (PHY-nRAT), The LCPFM1 performs independent logical channel priority processing on the first logical channel priority packet, that is, allocates resources indicated in the PHY-LTE transmission resource to the LCH1 and the MAC CE, that is, maps the first logical channel priority packet to the first connection packet. In the first embodiment, the first connection packet includes the connection 1; the LCPFM2 performs independent logical channel priority processing on the second logical channel priority packet, that is, the resource indicated in the connection 2 and/or the connection 3 physical layer transmission resource is allocated to the LCH2. And LCH3, that is, the second logical channel priority packet is mapped onto the second connection packet, and the second connection packet of this embodiment includes the connection 2 and the connection 3.

After the LCPFM1 and LCPFM2 allocate resources, the MAC entity notifies the RLC entity corresponding to each logical channel to the resource allocated to each logical channel. After the MAC entity receives the RLC PDU from the RLC entity, the MFM1 accesses the first logical channel. The RLC PDU on the priority packet is multiplexed with the packet, and the multiplexed MAC PDU is transmitted on the transport channel TCH1 of the connection 1 (ie, the connected packet 1). MFM2 performs packet multiplexing on the RLC PDU on the second logical channel priority packet on the transport channel TCH2 connecting packet 2 (including connection 2 and connection 3) Transmit the multiplexed MAC PDU.

It should be noted that FIG. 10 is a protocol architecture diagram of the UE side, corresponding to the base station side, because the base station side needs to simultaneously process data transmission of multiple UEs, and the base station side establishes two logical channel priority function units LCPFM1 and LCPFM2 to independently process. The logical channel priorities of the multiple UEs transmitted on the connection packet 1 and the connection packet 2 are respectively required to be mapped, and for the multiplexing functional unit, it is assumed that each UE in this embodiment establishes the three connections shown in FIG. Then, the base station side sets two independent multiplexing function units (MFM1, MFM2) for each UE.

Through the above processing process of the embodiment, the data processing effect as shown in FIG. 11 can also be achieved.

Example 4

FIG. 12 is a schematic diagram of a protocol architecture for implementing the data processing method of the present invention in Embodiment 4. In this embodiment, the UE establishes a connection with three base stations, and connects 1 (Connection 1), Connection 2 (Connection 2), and Connection 3 (Connection 3). The UE can already transmit uplink and downlink information with three base stations.

In the fourth embodiment, six RBs (RB1, RB2, RB3, RB4, RB5, and RB6) are established between the UE and the base station. When the RRC or MAC CE indicates the multi-connection state, RB1 and RB2 are transmitted in connection 1, and RB3 and RB4 are in the RB3 and RB4. Connection 2 is transmitted, while RB5 and RB6 are transmitted on connection 3. RB1 and RB2 are SRB or DRB, and RB3 to RB6 are DRB.

In the protocol architecture diagram shown in Figure 12, three logical channel priority functional units, LCPFM1, LCPFM2, and LCPFM3, are also established, and three multiplexing functional units, MFM1, MFM2, and MFM3, are also established. LCPFM1, MFM1, LCPFM2, MFM2, LCPFM3, and MFM3 may be in the same MAC entity; or LCPFM1 and MFM1 may be located in one MAC entity, such as MAC1 in Figure 12, and LCPFM2 and MFM2 are located in another MAC entity, such as MAC2 in 12, and LCPFM3 and MFM3 are located in another MAC entity, such as MAC3 in FIG. 12; or LCPFM1, MFM1 may be located in a MAC entity, such as MAC1 in FIG. 12, and LCPFM2, MFM2, and LCPFM3, MFM3 is located in another MAC entity, such as MAC2' in Figure 12.

In this embodiment, according to the indication information of the foregoing RRC or MAC CE, the logical channel priority packet is divided into three groups, the first logical channel priority packet, the second logical channel priority packet, and the third logical channel priority packet. . The first logical channel priority packet processes the priorities of LCH1, LCH2 and MAC CE, which are processed in LCPFM1, and the second logical channel priority packet processes the priorities of LCH3 and LCH4, processed in LCPFM2, and the third logical channel priority packet The priorities of LCH5 and LCH6 are processed and processed in LCPFM3. Similarly, according to the foregoing RRC or MAC CE indication, when receiving the transmission resource information of the physical layer, the MAC entity realizes that the first logical channel priority group is transmitted on the connection packet 1 (including the connection 1) according to the transmission resource information, and the first 2 The logical channel priority packet is transmitted on the connection packet 2 (including the connection 2), and the third logical channel priority packet is transmitted on the connection packet 3 (including the connection 3). In this embodiment, the transmission resource information is used for the transmission resource. The transmission channel, specifically, the mapping relationship between the transmission resource (the used transmission channel) and the logical channel priority packet is indicated by the RRC or the MAC CE. In this embodiment, the connection 1 uses TCH1, the connection 2 uses TCH2, and the connection 3 uses TCH3, RRC or MAC CE indicates that the first logical channel priority packet is mapped to TCH1, that is, it is equivalent to indicating that the first logical channel priority packet is mapped to the connected packet 1 (including connection 1), indicating that the second logical channel is prioritized. The level packet is mapped onto TCH2, which is equivalent to indicating that the second logical channel priority packet is mapped to the connection packet 2 (including connection 2), indicating that the third logical channel priority packet is mapped to On TCH3, it is equivalent to indicating that the third logical channel priority packet is mapped to the connection packet 3 (including connection 3). The transmission resource of the physical layer received by the MAC entity in this embodiment is a transmission scheduling indication.

When receiving a transmission scheduling indication from the connection 1 physical layer (PHY-LTE) on TCH1, LCPFM1 performs logical channel priority processing on the first logical channel priority packet, and connects the resources indicated in the 1 physical layer transmission scheduling indication. The MAC CE allocated to the LCH1, LCH2, and MAC layers, that is, the first logical channel priority packet is mapped onto the first connection packet, the first connection packet includes the connection 1; when the physical layer from the connection 2 is received on the TCH2 ( When the PHY-nRAT) transmits the scheduling indication, the LCPFM2 performs logical channel priority processing on the second logical channel priority packet, and allocates resources indicated in the connection 2 physical layer transmission scheduling indication to LCH4 and LCH5, that is, the second logical channel. The priority packet is mapped to the second connection packet, the second connection packet includes the connection 2; when the transmission scheduling indication from the connection 3 physical layer (PHY-nRAT) is received on the TCH3, the LCPFM3 groups the third logical channel priority Logical channel priority Processing, the resources indicated in the connection 3 physical layer transmission scheduling indication are allocated to LCH5 and LCH6, that is, the third logical channel priority packet is mapped to the third connection packet, and the third connection packet includes connection 3.

After LCPFM1, LCPFM2, and LCPFM3 allocate resources, the MAC entity notifies the RLC entity corresponding to each logical channel to the resource allocated to each logical channel. After the MAC entity receives the RLC PDU from the RLC entity, the MFM1 is the first. The RLC PDUs on the logical channel priority group are packet multiplexed, and the multiplexed MAC PDUs are transmitted on the transport channel TCH1 connecting the packets 1 (including the connection 1). The MFM2 performs packet multiplexing on the RLC PDUs on the second logical channel priority packet, and transmits the multiplexed MAC PDUs on the transport channel TCH2 connecting the packets 2 (including the connection 2). The MFM3 performs packet multiplexing on the RLC PDU on the third logical channel priority packet, and transmits the multiplexed MAC PDU on the transport channel TCH3 connecting the packet 3 (including the connection 3).

It should be noted that FIG. 12 is a protocol architecture diagram of the UE side, corresponding to the base station side, because the base station side needs to simultaneously process data transmission of multiple UEs, and the base station side establishes three logical channel priority functional units LCPFM1, LCPFM2, and LCPFM3. The independent processing needs to map the logical channel priorities of the multiple UEs transmitted on the connection packet 1, the connection packet 2, and the connection packet 3, respectively. For the multiplexing functional unit, it is assumed that each UE in this embodiment establishes the configuration in FIG. For the three connections shown, the base station side will set up three independent multiplexing functional units (MFM1, MFM2, MFM3) for each UE.

Through the above processing procedure of the embodiment, the data transmission effect as shown in FIG. 13 can be achieved.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each of the processes and/or blocks in the flowcharts and/or block diagrams, and in the flowcharts and/or block diagrams, can be implemented by computer program instructions. / or a combination of boxes. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

Based on this, an embodiment of the present invention further provides a computer storage medium, the computer storage medium comprising a set of instructions, when executed, causing at least one processor to execute the data processing method in the multi-connection system described above.

The embodiments disclosed in the present invention are as described above, but the contents thereof are only for the purpose of facilitating understanding of the technical solutions of the present invention, and are not intended to limit the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the scope of the present invention. It is subject to the scope defined by the appended claims.

Industrial applicability

According to the solution provided by the embodiment of the present invention, the user plane entity performs a logical channel priority grouping; the user plane entity first determines the logical channel priority group corresponding to the current logical channel priority processing according to the transmission resource information; and then the user plane entity respectively determines the determined Each logical channel priority group performs independent logical channel priority processing; the user plane entity respectively performs data packet multiplexing on each of the determined logical channel priority packets, thereby improving the number of 5G Phase I multi-connection systems According to the speed of processing.

Claims

A data processing method in a multi-connection system, comprising:

The user plane entity performs logical channel priority grouping;

The user plane entity determines, according to the transmission resource information, a logical channel priority group corresponding to the current logical channel priority processing;

The user plane entity separately performs logical channel priority processing on each of the determined logical channel priority groups;

The user plane entity separately performs packet multiplexing on each of the determined logical channel priority packets.
The method of claim 1 wherein the user plane entity is located on the user terminal UE and/or the base station.
The method of claim 1 wherein said user plane entity is a medium access control MAC entity.
The method of claim 1 wherein the performing a logical channel priority grouping by the user plane entity comprises:

The user plane entity divides all logical channels configured for the UE into multiple logical channel priority packets, or the user plane entity divides all transmitted network interconnection protocol flows of the UE into multiple logical channel priority packets.
The method of claim 1 wherein the performing a logical channel priority grouping by the user plane entity comprises:

The user plane entity performs logical channel priority grouping according to the radio resource control RRC message or the medium access control layer control information MAC CE indication, or according to the set rule.
The method of claim 5, wherein

The user plane entity adjusts the logical channel priority packet to which the logical channel or the network interconnection protocol flow IP flow belongs according to the RRC message or the MAC CE indication, or when there is an unavailable connection in the UE multiple connection and uses the unavailable connection When the logical channel or the logical channel priority packet to which the IP flow belongs is adjusted, when the logical channel or IP flow belongs to the new logical channel priority packet, the logical channel or IP flow is continuously used in the original logical channel priority grouping. Medium Use the value of the variable Bj or use the initial value of the variable.
The method of claim 5, wherein

When the user plane entity adjusts the logical channel priority packet to which the logical channel or the IP flow belongs according to the RRC message or the MAC CE indication, or when there is an unavailable connection in the UE multiple connection and the logical channel using the unavailable connection or When the logical channel priority packet to which the IP flow belongs is adjusted, the logical channel or IP flow belongs to the new logical channel priority packet and uses a configuration parameter different from the logical channel or IP flow in the original logical channel priority packet. The configuration parameter is indicated by RRC or MAC CE.
The method of claim 1, wherein the method further comprises: obtaining the transmission resource information.
The method of claim 8, wherein obtaining the transmission resource information comprises:

The transmission resource information is obtained from a physical layer entity or a resource scheduling entity.
The method of claim 8, wherein the transmission resource information comprises at least one of the following:

The RAT used to transmit resource information;

The physical layer entity used to transmit resource information;

a connection packet used to transmit resource information;

a transmission channel used to transmit resource information;

a network slice used to transmit resource information;

The scheduling identifier used when scheduling resource information scheduling.
The method of claim 5, wherein the user plane entity determines, according to the transmission resource information, that the logical channel priority group corresponding to the current logical channel priority processing comprises:

The user plane entity determines the logical channel priority group corresponding to the current logical channel priority processing according to the mapping relationship between the transmission resource information and the logical channel priority grouping.
The method of claim 11 wherein

The user plane entity determines the transmission resource information and the logical channel priority group according to the mapping relationship between the RRC message or the transmission resource information indicated by the MAC CE and the logical channel priority packet. The mapping relationship between.
The method of claim 10 or 12, wherein

When the transmission resource information is a connection packet used by the transmission resource, the user plane entity according to the RRC message or the connection included in each connection packet indicated by the MAC CE, and the transmission resource information and the logical channel priority according to the RRC message or the MAC CE indication The mapping relationship between the level packets determines the mapping relationship between the transmission resource information and the logical channel priority grouping.
The method of claim 1, wherein the user plane entity separately performs logical channel priority processing on each of the determined logical channel priority packets, respectively:

Allocating resources for each of the determined logical channel or network interconnection protocol flows within each of the determined logical channel priority packets;

The resources to which each logical channel is allocated are notified to the upper user plane entity corresponding to each logical channel.
The method of claim 14, wherein the upper layer user plane entity comprises: a radio link control RLC layer entity or a packet data convergence protocol PDCP layer entity.
The method of claim 1, wherein the user plane entity separately performs packet multiplexing on each of the determined logical channel priority packets comprises:

The upper layer user plane entity data packets received on different logical channels in the same logical channel priority group are grouped into one data packet of the user plane entity.
The method of claim 1 wherein

The user plane entity processes the logical channel priority packet by one or more logical channel priority functional units.
The method of claim 1 wherein

The user plane entity processes the logical channel priority packet by one or more multiplexing functional units.
A data processing device in a multi-connection system, comprising:

a grouping module configured to perform logical channel priority grouping;

a packet selection module configured to determine a priority of the logical channel according to the transmission resource information Corresponding logical channel priority grouping;

a priority processing module configured to separately perform logical channel priority processing on each of the determined logical channel priority groups;

And a multiplexing module configured to separately perform packet multiplexing on each of the determined logical channel priority packets.
The apparatus of claim 19 wherein said grouping module is configured to:

All logical channels configured for the UE are divided into multiple logical channel priority packets, or all the transmitted network interconnection protocol flows of the UE are divided into multiple logical channel priority packets.
The apparatus of claim 19 wherein said grouping module is configured to:

The logical channel priority grouping is performed according to the indication of the radio resource control RRC message or the medium access control layer control information MAC CE, or according to the set rule.
The apparatus of claim 19, wherein: said apparatus further comprises a packet information acquisition module configured to obtain said transmission resource information.
The apparatus of claim 19 wherein said packet selection configuration is:

The logical channel priority group corresponding to the logical channel priority processing is determined according to the mapping relationship between the transmission resource information and the logical channel priority grouping.
The apparatus of claim 23 wherein said packet selection module is further configured to:

When the transmission resource information is a connection packet used by the transmission resource, the connection included in each connection packet indicated by the RRC message or the MAC CE, and the transmission resource information and the logical channel priority group according to the RRC message or the MAC CE indication The mapping relationship between the transmission resources determines the mapping relationship between the transmission resource information and the logical channel priority grouping.
The apparatus of claim 19 wherein said priority processing module is configured to:

Allocating resources for each of the determined logical channel or network interconnection protocol flows within each of the determined logical channel priority packets;

The resources to which each logical channel is allocated are notified to the upper user plane entity corresponding to each logical channel.
The apparatus of claim 21 wherein said multiplexing module is configured to:

The upper layer user plane entity data packets received on different logical channels in the same logical channel priority group are grouped into one data packet of the user plane entity.
A computer storage medium comprising a set of instructions that, when executed, cause at least one processor to perform a data processing method in the multi-connection system of any one of claims 1 to 18.