CN114285806A

CN114285806A - Method and device for receiving and transmitting data

Info

Publication number: CN114285806A
Application number: CN202111609598.0A
Authority: CN
Inventors: 王婷婷; 何大治; 徐胤; 黄一航; 洪含绛
Original assignee: Shanghai Jiaotong University
Current assignee: Shanghai Jiaotong University
Priority date: 2021-12-24
Filing date: 2021-12-24
Publication date: 2022-04-05

Abstract

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving data. The method comprises the following steps: a sending end sends a first configuration instruction containing adjustment information for adjusting the duration of a reordering timer, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (G-RNTI) or an MCCH-RNTI (multicast control channel-RNTI); or the sending end sends a second configuration instruction containing the time length of the reordering timer and the adjustment information, the PDCCH for scheduling the second configuration instruction is scrambled by C-RNTI, G-RNTI or MCCH-RNTI, the technical scheme of the invention adjusts the time length of the reordering timer at the receiving end, and can solve the problem that the sending end sends the service data too slowly due to the receiving delay of a certain receiving end and further slows down the receiving progress of other receiving ends for receiving the service data, so that the sending end can send the subsequent data more quickly, and the progress of the receiving end for receiving the data is accelerated.

Description

Method and device for receiving and transmitting data

Technical Field

The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for transmitting and receiving data.

Background

In the prior art, a Packet Data Convergence Protocol (PDCP) can manage Packet Data received by a receiving end (e.g., a mobile terminal), and submit the Packet Data to an upper layer application in a sequence from a small Sequence Number (SN) carried by the Packet Data to a large Sequence Number (SN).

Considering processing resources and processing efficiency, the PDCP generally defines a receive Window to represent the maximum range of data processed by the receiving end (when the receiving end performs reordering, the receive Window is also referred to as a reordering Window), wherein the length of the Window is often represented as Window _ Size ═ 2[ PDCP-SN-sized dl ] -1, PDCP-SN-sized dl is used to represent the length of the PDCP sequence number, the lower boundary of the Window is often represented as "RX _ DELIV", RX _ DELIV is used to represent the COUNT value of the first PDCP SDU not submitted to the upper layer, and the upper boundary of the Window is defined as "RX _ DELIV + Window _ sized-1". Based on the PDCP reordering method specified in the 3GPP protocol TS 38.323, when the COUNT value of the data received by the receiving end is smaller than the lower window boundary, repeated reception will be caused, and thus the receiving end will directly discard the data, while the transmission of the data with the COUNT value larger than the upper window boundary is not allowed, because Hyper Frame Number (HFN) asynchronization will be caused. That is, the COUNT value of transmission/reception data of the transmitting/receiving end needs to be maintained within the window. And when the data received by the receiving end is missing, starting a reordering timer to wait for receiving the missing packet data.

Accordingly, in order to implement the receiving and sending of MBS (Multicast Broadcast Service) data, the existing communication system sends the same configuration information to all receiving ends corresponding to each MBS session, so that the PDCP entity of each receiving end performs the same configuration, and each receiving end maintains a separate receiving window to receive the corresponding data.

However, in actual operation, due to factors such as different channel conditions and different internal processing speeds of different receiving ends, the receiving speeds and states of different receiving ends are different.

In some cases, the receiving window of PDCP data of one or several receiving terminals moves much slower than the windows of other receiving terminals, so as to avoid the problem of the hyper-frame number asynchronism, the transmitting terminal will not transmit data beyond the upper boundary of the receiving window moving the slowest, as shown in fig. 1, for a certain MBS session in the communication system, including a base station NodeB, and receiving terminals UE-1, UE-2, and UE-3 corresponding to the certain MBS session, when the receiving terminal UE-1 receives data with a serious delay due to factors such as the quality of the receiving channel or internal processing resources, the receiving terminal UE-1 will only affect the receiving progress of UE-1 itself, and will more seriously affect the data transceiving progress of the MBS session, that is, the data transmitting progress of the base station (eNodeB in LTE, gdnodeb in NR) to the MBS session, and receiving data receiving progress of the MBS conversation of the receiving ends UE-2 and UE-3.

Disclosure of Invention

Aiming at the problem that the slow progress of sending the service data by a sending end caused by the receiving delay of a receiving end cannot be avoided when certain MBS service data is transmitted at present, and then the receiving progress of other receiving ends for receiving the service data is slowed down, the technical scheme adopted by the invention for solving the technical problem is as follows:

there is provided a method of transmitting data, comprising:

a sending end sends a first configuration instruction containing adjustment information for adjusting the duration, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by C-RNTI (radio network temporary identifier), G-RNTI (G-RNTI) or MCCH-RNTI;

or

And the sending end sends a second configuration instruction containing the duration and the adjustment information, and the PDCCH for scheduling the second configuration instruction is scrambled by C-RNTI or G-RNTI or MCCH-RNTI.

Preferably, the adjustment information for adjusting the duration at least includes:

a window movement acceleration timing duration for determining whether said duration needs to be adjusted, and/or

An adjustment factor for adjusting said duration, and/or

An adjusted duration for adjusting said duration, and/or

An adjusted duration identifier corresponding to the adjusted duration.

Preferably, the configuration instruction further includes a radio bearer identifier, and/or a service identifier, and/or a PDCP identifier, and/or a G-RNTI;

the different radio bearer identities, and/or the service identities, and/or the PDCP identities, and/or the G-RNTIs are used to identify different services, and respectively correspond to different time lengths and adjustment information for adjusting the time lengths.

There is also provided a method of receiving data, comprising:

a receiving end receives a first configuration instruction containing adjustment information for adjusting the duration, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (G-RNTI) or an MCCH-RNTI;

or

The receiving end receives a second configuration instruction containing the duration and the adjustment information, and a PDCCH of the second configuration instruction is scheduled to be scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI or an MCCH-RNTI;

and the receiving end adjusts the time length of the reordering timer according to the configuration instruction, so that the reordering timer performs timing according to the adjusted time length to receive data.

An adjustment factor for adjusting said duration, and/or

An adjusted duration for adjusting said duration, and/or

An adjusted duration identifier corresponding to the adjusted duration.

Preferably, the method comprises the following steps:

if the adjustment information comprises the adjustment duration, the receiving end adjusts the current duration according to the adjustment duration;

if the adjustment information comprises the adjustment duration identification, the receiving end adjusts the current duration according to the adjustment duration corresponding to the adjustment duration identification;

if the adjustment information comprises the adjustment coefficient, the receiving end adjusts the current time length by the adjustment coefficient;

if the adjustment information comprises the window moving acceleration timing duration, the receiving end compares and judges the window moving acceleration timing duration and the dead time of the reordering window, and adjusts the current duration according to a judgment result and the adjustment duration, and/or the adjustment duration identifier, and/or the adjustment coefficient;

the current time length adjusting mode comprises a replacement mode and an arithmetic operation mode.

Preferably, when the adjustment information includes the window movement acceleration timing duration, the specific processing procedure includes:

the receiving end sets a window moving acceleration timer, and the window moving acceleration timer is timed by the window moving acceleration timing duration;

when the reordering window slides, starting or restarting the window moving acceleration timer;

if the window moving acceleration timer is overtime, the receiving end adjusts the current time length according to the adjustment time length, and/or the adjustment time length identification, and/or the adjustment coefficient.

the different radio bearer identities, and/or the service identities, and/or the PDCP identities, and/or the G-RNTIs are used for identifying different services and respectively correspond to different time lengths and adjustment information for adjusting the time lengths;

and the receiving end adjusts the time length by the corresponding adjusting information aiming at each wireless bearing identifier, and/or the service identifier, and/or the PDCP identifier, and/or the service identified by the G-RNTI.

There is provided an apparatus for transmitting data, including:

a sending module, which sends a configuration instruction for adjusting the time length of the reordering timer;

and the scrambling module is connected with the sending module and used for scrambling and scheduling the PDCCH of the configuration instruction by C-RNTI or G-RNTI or MCCH-RNTI.

There is also provided an apparatus for receiving data, comprising:

a receiving module, which receives the configuration instruction for adjusting the time length of the reordering timer;

the monitoring module is connected with the receiving module and is used for monitoring the PDCCH for scrambling and scheduling the configuration instruction by the C-RNTI or the G-RNTI or the MCCH-RNTI;

and the processing module is connected with the receiving module and is used for adjusting the time length of the reordering timer so that the reordering timer can be timed according to the adjusted time length to receive data.

The invention has the beneficial effects that: by issuing the configuration instruction and adjusting the time length of the reordering timer of the receiving end, the problem that the receiving progress of other receiving ends for receiving the service data is slowed down due to the fact that the receiving delay of a certain receiving end causes the progress of the sending end for sending the service data to be too slow can be solved, the sending end can send the subsequent data more quickly, and the progress of the receiving end for receiving the data is accelerated.

Drawings

Fig. 1 is a schematic diagram for illustrating a problem that a data transceiving progress of an MBS service is affected in the prior art;

FIG. 2 is a flow chart illustrating a method for receiving data according to a preferred embodiment of the present invention;

fig. 3 is a flowchart illustrating a specific process of adjusting information including window moving acceleration timing duration according to a preferred embodiment of the present invention.

Detailed Description

The invention is further described with reference to the following drawings and specific examples, which are not intended to be limiting.

In the process of transmitting MBS data, a sending end sends the same PDCP configuration information to all receiving ends corresponding to MBS conversation, so that all receiving ends configure PDCP entities with the same configuration information, however, considering that the channel conditions and the processing speeds of different receiving ends are different, the sending end needs to balance the receiving condition of each receiving end, and the problem that the sent data exceeds the upper boundary of a receiving window of a certain receiving end and then the hyper frame number is asynchronous (HFN synchronization) is avoided, therefore, the sending end slows down the speed of sending the data, and correspondingly, other receiving ends can not receive the data more quickly.

After analyzing the receiving progress of different receiving ends, it is found that the receiving progress of the receiving ends is delayed, that is, the receiving window progress is different, besides self factors such as a receiving channel and internal processing resources, the receiving ends also have reasons of PDCP configuration information, because different receiving ends configure PDCP entities with the same configuration information, that is, the time lengths of the reordering timers of different receiving ends are the same, when the receiving ends receive out-of-order data, the reordering timers need to be started/restarted, the receiving window stops sliding, the receiving ends wait for a period of time to receive the data, upload the data to an upper layer, the reordering timers are closed, and the receiving window continues to slide forward. In other words, each time the reordering timer is started, each time the receiving window is stalled, it can be regarded as a slow-down of the receiving progress of other receiving ends that normally receive data in the communication system. In summary, the present invention provides a method for accelerating the window sliding speed of the receiving terminal with the slowest receiving speed to make the sending terminal send the subsequent data faster, so as to increase the data receiving and sending speed of the sending terminal/receiving terminal.

However, in the prior art, in order to solve the problem that the receiving end receives out-of-order data and the data is lost in the PDCP layer, the duration of the reordering timer is usually prolonged to prolong the waiting time of the receiving end for the data packet, so that the receiving end receives the data packet in the positive order. Thus, the present invention provides a method and apparatus for transmitting and receiving data, as described in detail below.

The method for sending data provided by the invention comprises the following steps:

a sending end sends a configuration instruction for adjusting the time length of a reordering timer;

the PDCCH of the scheduling configuration instruction is scrambled by C-RNTI (Cell Network Temporary Identifier), or G-RNTI (Group-Radio Network Temporary Identifier), or MCCH-RNTI (Multicast Control Channel-Radio Network Temporary Identifier).

Specifically, the sending end sends a configuration instruction for adjusting the time length of the reordering timer, and accordingly, the receiving end, which can monitor the PDCCH that schedules the configuration instruction, can adjust the time length of the reordering timer in the PDCP entity according to the configuration instruction indicated by the receiving end, so that the configured reordering timer performs timing with the adjusted time length. Therefore, when the configuration instruction is used for shortening the time length of the reordering timer, after the receiving terminal which receives the slowest data receives the configuration instruction, the reordering timer can be timed in a shorter time length, and further the sliding speed of the receiving window of the receiving terminal is accelerated, so that the data sending progress of the sending terminal is accelerated, and the problems that the sending terminal is slowed down to send the service data due to the receiving delay of a certain receiving terminal and the receiving progress of other receiving terminals are solved. Further, under the condition that the packet loss rate of some receiving terminals is serious, the configuration instruction can be used for prolonging the time length of the reordering timer, and accordingly, after the receiving terminals receive the configuration instruction, the reordering timer can be timed in a longer time length, and the problem that data loss of a certain receiving terminal is serious is solved.

It should be noted that the configuration signaling here may be signaling of a core network layer, or a NAS layer, or an RRC layer, or a PDCP layer, or an RLC layer, or a MAC layer, or a PHY layer.

Furthermore, the PDCCH of the configuration instruction scheduled by the sending end can be scrambled by C-RNTI, or scrambled by G-RNTI, or scrambled by MCCH-RNTI, and correspondingly, no matter the PDCCH corresponds to a certain receiving end of the C-RNTI, or corresponds to a certain group of receiving ends of G-RNTI services, or corresponds to all receiving ends of the MCCH-RNTI, as long as the PDCCH is monitored, the duration of the reordering timer can be adjusted according to the configuration instruction indicated by the PDCCH, so that the configured reordering timer can perform timing according to the adjusted duration. Here, the scrambling method needs to be selected according to the specific content of the configuration signaling and the condition of the receiving end.

The invention provides a preferred implementation mode, wherein a sending end sends a first configuration instruction containing adjustment information for adjusting duration, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by C-RNTI (radio network temporary identifier), G-RNTI (G-RNTI) or MCCH-RNTI (multicast control channel-RNTI).

Specifically, the sending end sends a first configuration instruction on the basis of the existing original configuration instruction which contains the time length of the reordering timer, so that the receiving end adjusts the time length configured in the original configuration instruction according to the adjustment information in the first configuration instruction after receiving the original configuration instruction and the first configuration instruction.

Furthermore, considering that the present invention can adjust the duration of the reordering timer configured in the receiving end receiving a certain MBS service data, can also adjust all receiving ends receiving a certain MBS service, and can also adjust all receiving ends receiving all MBS service data, therefore, the transmitting end can select the PDCCH which is scrambled and schedules the first configuration instruction by the C-RNTI, the G-RNTI, or the MCCH-RNTI, respectively.

The invention also provides a preferred implementation mode, wherein the sending end sends a second configuration instruction containing the duration and the adjustment information, and the PDCCH for scheduling the second configuration instruction is scrambled by the C-RNTI or the G-RNTI or the MCCH-RNTI.

Specifically, the sending end directly sends a second configuration instruction containing the time length of the reordering timer and the adjustment information for adjusting the time length, so that the receiving end adjusts the time length according to the adjustment information in the second configuration instruction after receiving the second configuration instruction.

Furthermore, considering that the present invention can adjust the duration of the reordering timer configured in the receiving end receiving a certain MBS service data, can also adjust all receiving ends receiving a certain MBS service, and can also adjust all receiving ends receiving all MBS service data, therefore, the transmitting end can select the PDCCH scrambled and scheduled by the C-RNTI, or the G-RNTI, or the MCCH-RNTI respectively for the second configuration instruction.

It should be noted here that, if the time length is adjusted based on the prior art, the sending end sends the original configuration instruction including the original time length, scrambles and schedules the PDCCH of the original configuration instruction by using the MCCH-RNTI, resends the updated configuration instruction by using the updated time length as the original time length, and scrambles and schedules the PDCCH of the updated configuration instruction by using the MCCH-RNTI again, and the two configuration instructions completely include all information that should be included in the configuration instruction, for example, the time length of the reordering timer, the service identifier, and the like. Therefore, when the time length is adjusted based on the prior art, the time length of a reordering timer of a certain receiving end cannot be adjusted in a targeted manner, and information redundancy and channel resource waste are caused. The invention can adjust the time length of a reordering timer of a receiving end corresponding to a certain service, for example, scrambles and schedules a first configuration instruction or a PDCCH of a second configuration instruction by means of C-RNTI, for example, the window moving acceleration timing time length is contained in the adjustment information and is sent to all receiving ends, and the like.

The present invention also provides a preferred embodiment, where the adjustment information for adjusting the duration may only include 1 adjustment duration, or may include a plurality of adjustment durations, and the plurality of adjustment durations may be sequentially included in the adjustment information according to a sequence. When the adjustment information is used for shortening the time length of the current reordering timer, the adjustment time lengths are all smaller than the original time length and are arranged in a descending order.

The present invention also provides a preferred embodiment, where the adjustment information for adjusting the duration may only include 1 adjustment duration identifier, or may include multiple adjustment duration identifiers, and the multiple adjustment duration identifiers may be sequentially included in the adjustment information according to a sequence. When the adjustment information is used to shorten the current reordering timer duration, the adjustment durations corresponding to the adjustment duration identifiers are all smaller than the original duration and arranged in a descending order, wherein it should be noted that, in actual operation, the receiving end and the receiving end pre-configure the adjustment durations corresponding to the adjustment duration identifiers, so that the receiving end can adjust the current duration with the adjustment duration corresponding to the adjustment duration identifier after receiving the configuration instruction.

The present invention also provides a preferred embodiment, the adjustment information for adjusting the duration may include only 1 adjustment coefficient, or may include a plurality of adjustment coefficients, and the plurality of adjustment coefficients may be sequentially included in the adjustment information. When the adjustment information is used to shorten the current reordering timer duration, the adjustment coefficients are all set to be in the range of 0 to 1 and arranged in descending order.

The present invention also provides a preferred embodiment, where the adjustment information for adjusting the duration may only include 1 window moving acceleration timing duration, or may include a plurality of window moving acceleration timing durations, and the plurality of window moving acceleration timing durations may be sequentially included in the adjustment information according to a sequence.

It should be noted here that, for different MBS services and corresponding receiving end conditions, the sending end sends different configuration instructions, and accordingly, the window moving acceleration timing duration, the adjustment coefficient, the adjustment duration, and the adjustment duration identifier in the different configuration instructions are also different.

The invention also provides a preferable implementation mode, the configuration instruction further comprises a radio bearer identifier, and/or a service identifier, and/or a PDCP identifier, and/or a G-RNTI;

different radio bearer identities and/or service identities and/or PDCP identities and/or G-RNTIs are used to identify different services and correspond to different time durations and adjustment information for adjusting the time durations, respectively.

Specifically, the configuration instruction may further include a radio bearer identifier, where the radio bearer identifier may specifically be an MRB identifier or a DRB identifier; the Service identifier may also be included, and specifically may be a Service ID Service identifier, a Session ID Session identifier, a TMGI (Temporary Mobile Group Identity); the PDCP ID can also be included, and specifically the PDCP ID can be included; G-RNTI may also be included. Correspondingly, when the configuration signaling sent by the sending end comprises different radio bearer identifications, service identifications, PDCP identifications and G-RNTIs, the configuration signaling can be used for identifying different services, so that the receiving end receiving the configuration instruction adjusts the time length of a reordering timer for receiving the service data according to the adjustment information in the configuration instruction aiming at the services corresponding to the radio bearer identifications, the service identifications, the PDCP identifications and the G-RNTs.

The invention also provides a method for receiving data, which comprises the following steps:

a receiving end receives a configuration instruction for adjusting the time length of a reordering timer;

the PDCCH of the scheduling configuration instruction is scrambled by C-RNTI, G-RNTI and MCCH-RNTI;

Specifically, the receiving end monitors the PDCCH of the scheduling configuration instruction, and may adjust the duration of the reordering timer according to the configuration instruction indicated by the receiving end, so that the reordering timer configured in the receiving end performs timing according to the adjusted duration. When the configuration instruction is used for shortening the time length of the reordering timer, after the receiving end which receives the slowest data receives the configuration instruction, the reordering timer is timed by a shorter time length, so that the sliding speed of a receiving window of the receiving end is accelerated, the data sending progress of the sending end is accelerated, and the problems that the sending end is slowed down to send the service data due to the receiving delay of a certain receiving end and the receiving progress of other receiving ends are solved.

The present invention further provides a preferred embodiment, as shown in fig. 2, a receiving end receives a first configuration instruction including adjustment information for adjusting a duration of a reordering timer, and a PDCCH scheduling the first configuration instruction is scrambled by a C-RNTI, or a G-RNTI, or an MCCH-RNTI;

or

A receiving end receives a second configuration instruction containing the time length of the reordering timer and the adjustment information, and a PDCCH of the second configuration instruction is scheduled to be scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (radio network temporary identifier) or an MCCH-RNTI;

and the receiving end adjusts the time length of the reordering timer according to the first configuration instruction or the second configuration instruction, so that the reordering timer performs timing according to the adjusted time length to receive data.

In the preferred embodiment provided by the invention, a receiving end receives a first configuration instruction containing adjustment information for adjusting duration, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI or an MCCH-RNTI.

Specifically, after receiving the original configuration instruction and the first configuration instruction, the receiving end adjusts the duration configured in the original configuration instruction according to the adjustment information in the first configuration instruction. Considering that the present invention can adjust the time length of the reordering timer configured in the receiving end receiving a certain MBS service data, can also adjust all receiving ends receiving a certain MBS service, and can also adjust all receiving ends receiving all MBS service data, therefore, the transmitting end can scramble and schedule the PDCCH of the first configuration instruction with the C-RNTI, or the G-RNTI, or the MCCH-RNTI, respectively.

In the preferred embodiment provided by the invention, the receiving end receives a second configuration instruction containing the duration and the adjustment information, and the PDCCH of the second configuration instruction is scheduled to be scrambled by C-RNTI or G-RNTI or MCCH-RNTI.

Specifically, after receiving the second configuration instruction, the receiving end adjusts the time length by using the adjustment information in the second configuration instruction. Considering that the present invention can adjust the time length of the reordering timer configured in the receiving end receiving a certain MBS service data, can also adjust all receiving ends receiving a certain MBS service, and can also adjust all receiving ends receiving all MBS service data, therefore, the transmitting end can scramble and schedule the PDCCH of the second configuration instruction with the C-RNTI, or the G-RNTI, or the MCCH-RNTI, respectively.

The invention also provides a preferable implementation mode, if the adjustment information comprises the adjustment duration, the receiving end adjusts the current duration by the adjustment duration.

Specifically, after receiving the configuration instruction, the receiving end may adjust the current reordering timer duration by using the adjustment duration, where the adjustment duration is smaller than the original reordering timer duration, and the reordering timers are arranged in a descending order under the condition that there are multiple adjustment durations. When the adjustment information is used for shortening the current reordering timer duration, the receiving end sequentially utilizes the mode that the adjustment duration directly replaces the current duration to shorten the current duration.

The invention also provides a preferred implementation mode, if the adjustment information comprises the adjustment duration identification, the receiving end adjusts the current duration by the adjustment duration corresponding to the adjustment duration identification.

Specifically, after receiving the configuration instruction, the receiving end adjusts the current time length by using the adjustment time length corresponding to the adjustment time length identifier, wherein the adjustment time lengths corresponding to the adjustment time length identifier are all smaller than the original time length, and are arranged in a descending order according to the corresponding adjustment time lengths under the condition that a plurality of adjustment time length identifiers are provided. And when the adjustment information is used for shortening the current reordering timer duration, the receiving end directly replaces the current duration by the adjustment duration corresponding to the adjustment duration identification in sequence, so as to shorten the current duration. It should be noted that, in actual operation, the receiving end and the receiving end pre-configure the adjustment duration corresponding to the adjustment duration identifier, so that after receiving the configuration instruction, the receiving end can adjust the current duration by using the adjustment duration corresponding to the adjustment duration identifier. The method for adjusting the current time length comprises an alternative method and an arithmetic operation method.

The invention also provides a preferred implementation mode, if the adjustment information comprises an adjustment coefficient, the receiving end adjusts the current time length by the adjustment coefficient.

Specifically, after receiving the configuration instruction, the receiving end may adjust the current duration by using the adjustment coefficients, and arrange the current duration in a descending order in the case of multiple adjustment coefficients. When the adjustment information is used for shortening the current reordering timer duration, the adjustment coefficients are all in the range of 0 to 1, and the receiving end shortens the current duration in a mode of multiplying the adjustment coefficients by the current duration in sequence.

If the adjustment information comprises the window moving acceleration timing duration, the receiving end judges the window moving acceleration timing duration and the dead time of the reordering window, and adjusts the current duration according to the judgment result and/or the adjustment duration identifier and/or the adjustment coefficient.

Specifically, after receiving the configuration instruction, the receiving end determines whether the current reordering timer needs to be adjusted by using the window moving acceleration timing length, wherein the window moving acceleration timing length is smaller than the original length, and the window moving acceleration timing length is sequentially included in the adjustment information in sequence under the condition that a plurality of window moving acceleration timing lengths exist. When the adjustment information is used for shortening the current reordering timer duration, the receiving end sequentially utilizes the window acceleration timing duration and the dead time of the current window to judge whether the current duration needs to be adjusted, when the window acceleration timing duration is less than the dead time of the current window, no adjustment is performed, and when the window acceleration timing duration is greater than the dead time of the current window, the current duration can be shortened by utilizing the above mentioned adjustment coefficient, adjustment duration and adjustment duration identification to adjust the current duration.

The present invention further provides a preferred embodiment, wherein the specific processing procedure when the adjustment information includes the window moving acceleration timing duration includes:

setting a window moving acceleration timer at a receiving end, and timing by the window moving acceleration timer according to the window moving acceleration timing duration;

when the reordering window slides, starting or restarting a window moving acceleration timer;

if the window moving acceleration timer is overtime, the receiving end adjusts the current time length by adjusting the time length and/or adjusting the time length identification and/or adjusting the coefficient.

Specifically, the adjustment information includes window moving acceleration timing length, and the receiving end sets a window moving acceleration timer, which is timed with the window moving acceleration timing length. When the data received by the receiving end is out of order, the reordering timer will time with the current time length, the receiving window (also called as the reordering window) is stopped to wait for receiving the missing data until the time length of the reordering timer is reached or all the missing data is received, the reordering timer is reset, the reordering window slides, the window moving acceleration timer is started, if the received data is always in the positive order, the reordering window always slides, correspondingly, the window moving acceleration timer will not be overtime, if the out of order data is received and the remaining missing data is received within the window moving acceleration time length, the reordering window will also slide before the window moving acceleration timer is overtime, namely, the window accelerating time length is longer than the current window dead time, correspondingly, the window moving acceleration timer is restarted, the phenomenon of overtime can not occur, when out-of-order data is received and residual missing data is not received within the window moving acceleration timing length, the window moving acceleration timer is overtime, namely the window acceleration timing length is smaller than the dead time of the current window, and the receiving end can adjust the current time length according to the mode of adjusting the current reordering timer time length according to the adjusting time length, the adjusting time length mark and the adjusting coefficient.

Preferably, a specific operation process is exemplarily described, as shown in fig. 3, the receiving end sets a window moving acceleration timer, the window moving acceleration timer performs timing according to a window moving acceleration timing length, when the reordering window slides for the 1 st time, the window moving acceleration timer is started, if the reordering window slides again, the window moving acceleration timer is restarted, and if the window moving acceleration timer is overtime, the receiving end adjusts the current time length according to the above-mentioned manner of adjusting the current reordering timer time length according to the adjustment time length, the adjustment time length identifier and the adjustment coefficient; when the reordering window has a 2 nd sliding motion and a 3 rd sliding motion … … nth sliding motion, the same process as the 1 st sliding motion is performed, and the description thereof is omitted.

different radio bearer identifications and/or service identifications and/or PDCP identifications and/or G-RNTIs are used for identifying different services and respectively correspond to different time lengths and adjustment information for adjusting the time lengths;

and the receiving end adjusts the time length by corresponding adjusting information aiming at each wireless bearing mark and/or service mark and/or PDCP mark and/or the service marked by G-RNTI.

The present invention provides an apparatus for transmitting data, comprising:

and the scrambling module is connected with the sending module and used for scrambling the PDCCH of the scheduling configuration instruction by the C-RNTI or the G-RNTI or the MCCH-RNTI.

Specifically, the device for sending data comprises a sending module and a scrambling module, the invention module is used for sending a configuration instruction for adjusting the time length of the reordering timer, and the scrambling module is used for scrambling the PDCCH for scheduling the configuration instruction by using C-RNTI or G-RNTI or MCCH-RNTI, so that a receiving end can be pertinently enabled to receive the configuration instruction.

The present invention also provides a device for receiving data, comprising:

the monitoring module is connected with the receiving module and is used for monitoring the PDCCH scrambled by the C-RNTI or the G-RNTI or the MCCH-RNTI for scheduling the configuration instruction;

and the processing module is connected with the receiving module and is used for adjusting the time length of the reordering timer so that the reordering timer can be timed by the adjusted time length to receive data.

Specifically, the device for receiving data comprises a receiving module and a monitoring module, wherein the receiving module is used for adjusting a configuration instruction of the duration of the reordering timer, and the monitoring module is used for monitoring a PDCCH (physical downlink control channel) scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (G-RNTI) or an MCCH-RNTI (multicast control channel-radio network temporary identifier) for scheduling the configuration instruction, so that a receiving end can pertinently receive the configuration instruction, and after receiving the configuration instruction, the duration of the reordering timer is adjusted, and the reordering timer is timed according to the adjusted duration to receive the data.

The invention also provides a communication system, which comprises the device for sending data and the device for receiving data.

The present invention also provides a computer-readable storage medium for storing program instructions, which when executed by a computer, the computer performs the above-described method of transmitting/receiving data.

The following four examples are provided to illustrate the practice of the present invention.

Example one

This embodiment is used to specifically describe an implemented method and apparatus for receiving and transmitting data, and specifically the following is:

the configuration instruction received by the sending end and the receiving end is used for adjusting the time length of the current reordering timer, and the PDCCH of the scheduling configuration instruction is scrambled by the C-RNTI so as to adjust the time length of the reordering timer in the PDCP entity of a single receiving end.

The configuration signaling here may be signaling of a core network layer, or a NAS layer, or an RRC layer, or a PDCP layer, or an RLC layer, or a MAC layer, or a PHY layer.

The configuration instruction includes PDCP configuration information corresponding to one or more MBS sessions, where the PDCP configuration information at least includes adjustment information for adjusting a time length of a reordering timer, and the adjustment information may specifically be the adjustment time length, and optionally may also include a service identifier, specifically a service ID, or a session ID, or a TMGI, etc.

The sending end, here a base station:

generating and sending the configuration signaling;

the receiving end, here a mobile terminal:

receiving and decoding a configuration signaling;

for each MBS conversation indicated in the configuration signaling, configuring/reconfiguring the PDCP entity corresponding to the MBS conversation according to the PDCP configuration information corresponding to the MBS conversation indicated in the configuration signaling;

the PDCP configuration information at least comprises an adjusting time length, and the receiving end can directly replace the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation according to the adjusting time length contained in the PDCP configuration information.

Example two

The configuration instruction includes PDCP configuration information corresponding to one or more MBS sessions, where the PDCP configuration information at least includes adjustment information for adjusting a time length of a reordering timer, and the adjustment information may specifically be an adjustment time length identifier, and optionally may also include a service identifier, specifically a service ID, or a session ID, or a TMGI, etc.

The sending end, here a base station:

generating and sending the configuration signaling;

the receiving end, here a mobile terminal:

receiving and decoding a configuration signaling;

for each MBS conversation indicated in the configuration signaling, configuring/reconfiguring the PDCP entity corresponding to the MBS conversation according to the PDCP configuration information corresponding to the MBS conversation indicated in the configuration signaling.

The PDCP configuration information at least comprises an adjustment time length mark, and the receiving end can directly replace the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation according to the adjustment time length corresponding to the adjustment time length mark contained in the PDCP configuration information.

Optionally, the adjustment duration corresponding to the adjustment duration identifier may be obtained through an adjustment duration identifier of the reordering timer included in the PDCP configuration information and a mapping relationship between the adjustment duration identifier and the adjustment duration value. The mapping relationship may be preconfigured by the base station or defined by a protocol.

EXAMPLE III

The configuration instruction includes PDCP configuration information corresponding to one or more MBS sessions, where the PDCP configuration information at least includes adjustment information for adjusting a duration of a reordering timer, and the adjustment information may specifically be an adjustment coefficient, and optionally may also include a service identifier, specifically a service ID, or a session ID, or a TMGI, etc.

The sending end, here a base station:

generating and sending the configuration signaling;

the receiving end, here a mobile terminal:

receiving and decoding a configuration signaling;

the PDCP configuration information at least includes an adjustment coefficient, and the receiving end can update the time length of the current reordering timer in the PDCP entity corresponding to the MBS session according to the manner that the adjustment coefficient included in the PDCP configuration information is multiplied by the time length of the current reordering timer.

Example four

a configuration instruction received by a sending end and a receiving end is used for adjusting the time length of a current reordering timer, and when the configuration instruction is used for adjusting the time length of the reordering timer in the receiving end for receiving certain MBS service data, the PDCCH of the configuration instruction is scrambled and scheduled by the C-RNTI; when the time length of a reordering timer of all receiving ends receiving a certain MBS service is adjusted, scrambling is carried out by G-RNTI; and scrambling by MCCH-RNTI when the length of the reordering timer of all receiving ends for receiving all MBS service data is adjusted.

The configuration instruction includes PDCP configuration information corresponding to one or more MBS sessions, where the PDCP configuration information at least includes any combination of the following information:

one or more window movement acceleration timing durations;

one or more adjustment durations; optionally, if a plurality of adjusted durations are included, the adjusted durations may be arranged in a descending order according to the size of the adjusted durations;

an adjusted duration identification of one or more reordering timers; optionally, the adjustment duration identifier corresponds to the adjustment duration value one to one, and a mapping relationship between the adjustment duration identifier of the reordering timer and the adjustment duration value may be configured in advance by the base station or defined by a protocol; further optionally, if the time length adjustment device comprises a plurality of time length adjustment identifiers, the time length adjustment identifiers may be arranged in a descending order according to the size of the time length adjustment corresponding to the time length adjustment identifiers;

one or more adjustment coefficients, optionally between 0 and 1;

optionally, the Service identifier may also be included, and specifically may be a Service ID Service identifier, a Session ID Session identifier, or a TMGI;

optionally, the radio bearer identifier may also be included, that is, an RB identifier, which may specifically be an MRB identifier, or may also be a DRB identifier;

optionally, the PDCP entity identifier may also be included, specifically, a PDCP ID.

The sending end, here a base station:

generating and sending the configuration signaling;

the receiving end, here a mobile terminal:

receiving and decoding a configuration signaling;

wherein, if the PDCP configuration information at least includes the window moving acceleration timing duration and one or more adjustment durations:

the process that the receiving end adjusts the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation at least comprises the following steps:

and assigning a current time length of a reordering timer of a PDCP entity corresponding to the MBS conversation according to the first adjusting time length contained in the PDCP configuration information. And:

starting to move a window acceleration timer for a PDCP entity corresponding to an MBS conversation when the window moves for the first time according to a PDCP reordering operation method specified in a 3GPP protocol TS 38.323 since a configuration signaling is received and decoded;

according to a PDCP reordering operation method specified in a 3GPP protocol TS 38.323, when a window moves, restarting a window moving acceleration timer for a PDCP entity corresponding to an MBS conversation;

the time length of the window moving acceleration timer is the window moving acceleration timing time length, and when the window moving acceleration timer is overtime, the receiving end can update the current reordering timer time length of the PDCP entity corresponding to the MBS conversation to the next adjustment time length contained in the PDCP configuration information.

Wherein, if the PDCP configuration information at least includes the window moving acceleration timing duration and one or more adjustment duration identifiers:

and assigning the adjustment time length of the reordering timer of the PDCP entity corresponding to the MBS conversation according to the adjustment time length corresponding to the first adjustment time length identifier contained in the PDCP configuration information. And:

starting to move a window acceleration timer for a PDCP entity corresponding to an MBS conversation when the window moves for the first time according to a PDCP reordering operation method specified in a 3GPP protocol TS 38.323 since a signaling is received and decoded;

the time length of the window moving acceleration timer is the window moving acceleration timing time length, when the window moving acceleration timer is overtime, the receiving end can update the current reordering timer time length of the PDCP entity corresponding to the MBS conversation to the adjustment time length corresponding to the next adjustment time length identification contained in the PDCP configuration information.

Optionally, the adjustment duration value corresponding to the adjustment duration identifier of the reordering timer may be obtained through the adjustment duration identifier of the reordering timer included in the PDCP configuration information and a mapping relationship between the adjustment duration identifier and the adjustment duration value. The mapping relationship may be preconfigured by the base station or defined by a protocol.

Wherein, if the PDCP configuration information at least includes the window moving acceleration timing duration, the number of adjustments, and one or more adjustments:

and assigning a current time length of a reordering timer of a PDCP entity corresponding to the MBS conversation according to the adjusting time length contained in the PDCP configuration information. And:

starting to move a window acceleration timer for a PDCP entity corresponding to an MBS conversation when the window moves for the first time according to a PDCP reordering operation method specified in a 3GPP protocol TS 38.323 since a configuration instruction is received and decoded;

when the window moving acceleration timer is overtime, the receiving end can update the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation according to the mode that the adjusting coefficient contained in the PDCP configuration information is multiplied by the time length of the current reordering timer.

Wherein, if the PDCP configuration information at least includes the window moving acceleration timing duration and the adjustment times:

and updating the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation according to the mode that the adjusting coefficient contained in the PDCP configuration information is multiplied by the time length of the current reordering timer. And:

and when the window moving acceleration timer is overtime, updating the time length of the current reordering timer in the PDCP entity corresponding to the MBS conversation according to the mode that the adjusting coefficient contained in the PDCP configuration information is multiplied by the time length of the current reordering timer.

The original time length of the PDCP entity corresponding to the MBS session may be sent through other signaling.

In the above embodiments, all or part of the implementation may be realized by software, hardware, firmware or any other combination. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. The procedures or functions according to the embodiments of the present application are all or partially generated when the computer program instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored on a computer readable storage medium or transmitted from one computer readable storage medium to another, for example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center by wire (e.g., coaxial cable, fiber optic, digital subscriber line) or wirelessly (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device, such as a server, a data center, etc., that incorporates one or more of the available media. The usable medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a Digital Video Disk (DVD)), or a semiconductor medium (e.g., a Solid State Disk (SSD)), among others.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. A method of transmitting data, comprising:

a sending end sends a first configuration instruction containing adjustment information for adjusting the duration of a reordering timer, and a PDCCH (physical downlink control channel) scheduling the first configuration instruction is scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (G-RNTI) or an MCCH-RNTI (multicast control channel-RNTI); or

And the sending end sends a second configuration instruction containing the duration of the reordering timer and the adjustment information, and the PDCCH of the second configuration instruction is scheduled to be scrambled by C-RNTI or G-RNTI or MCCH-RNTI.

2. The method of claim 1, wherein the adjustment information for adjusting the duration at least comprises:

an adjusted duration for adjusting said duration, and/or

An adjustment duration identifier for adjusting the duration and corresponding to the adjusted duration, and/or an adjustment coefficient for adjusting the duration, and/or

And the window moving acceleration timing duration is used for judging whether the duration needs to be adjusted.

3. The method of claim 1, wherein the configuration command further comprises: a radio bearer identification, and/or a service identification, and/or a PDCP identification, and/or a G-RNTI;

4. A method of receiving data, comprising:

a receiving end receives a first configuration instruction containing adjustment information for adjusting the duration of the reordering timer, and a PDCCH of the first configuration instruction is scheduled to be scrambled by a C-RNTI (radio network temporary identifier), a G-RNTI (radio network temporary identifier) or an MCCH-RNTI;

or

The receiving end receives a second configuration instruction containing the duration of the reordering timer and the adjustment information, and schedules the PDCCH of the second configuration instruction to be scrambled by C-RNTI or G-RNTI or MCCH-RNTI;

and the receiving end adjusts the time length of the reordering timer according to the first configuration instruction or the second configuration instruction, so that the reordering timer is timed according to the adjusted time length to receive data.

5. The method of claim 4, wherein the adjustment information for adjusting the duration at least comprises:

an adjusted duration for adjusting said duration, and/or

6. The method of claim 4, comprising:

7. The method according to claim 6, wherein the specific processing when the adjustment information includes the window moving acceleration timing duration comprises:

8. The method of claim 4, wherein the configuration instruction further comprises: a radio bearer identification, and/or a service identification, and/or a PDCP identification, and/or a G-RNTI;

9. An apparatus for transmitting data, comprising:

10. An apparatus for receiving data, comprising: