CN101668340B

CN101668340B - Method and device for switching uplink multiple access modes

Info

Publication number: CN101668340B
Application number: CN2008101197153A
Authority: CN
Inventors: 常俊仁; 李亚娟
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2008-09-05
Filing date: 2008-09-05
Publication date: 2012-05-23
Anticipated expiration: 2028-09-05
Also published as: CN101668340A

Abstract

The invention relates to a method for switching uplink multiple access modes. The method comprises the following steps that: a sending terminal sends switching indication information about an uplink multiple access mode; and according to the received switching indication information, a receiving terminal and the sending terminal execute switching operation simultaneously at a preset time. Because the execution of uplink multiple access mode switching is determined according to message transfer with an opposite terminal, the switching processing method realizes flexible and quick switching among uplink multiple access modes in a hybrid multiple access patterns. In addition, due to the adoption of preset switching time, switching operation can be controlled through the switching time, thereby implementing uplink multiple access mode switching with the equipment of the opposite terminal at the same time to increase system stability.

Description

Method and device for switching uplink multiple access modes

Technical Field

The present invention relates to the field of mobile communications technologies, and in particular, to a method and an apparatus for switching uplink multiple access modes.

Background

In an LTE-Advanced (Long Term Evolution-Advanced, further enhancement of Long Term Evolution) system, in order to improve the performance of the whole system, OFDMA (Orthogonal Frequency Division multiple access) or other higher uplink multiple access schemes need to be selected as its uplink multiple access scheme, and considering compatibility with the LTE system, the LTE-Advanced system may adopt a hybrid multiple access scheme of SC-FDMA and OFDMA or other higher uplink multiple access scheme technologies.

Therefore, in the LTE-Advanced system, a UE (User Equipment) will have a problem of selecting two or more uplink multiple access modes. How to realize the free switching of the uplink multiple access mode of the UE is the problem which is not solved in the prior art.

Disclosure of Invention

Embodiments of the present invention provide a method and an apparatus for switching uplink multiple access modes, so that flexible and fast switching between uplink multiple access modes can be achieved in a hybrid multiple access mode.

A method for switching an uplink multiple access mode comprises the following steps:

sending switching indication information of an uplink multiple access mode, wherein the switching indication information is used for indicating a receiving end of the switching indication information to execute switching operation;

and executing the switching operation when the preset time is reached.

receiving switching indication information of an uplink multiple access mode;

and executing switching operation according to the switching indication information when the preset time is up.

A switching processing device of an uplink multiple access mode comprises the following components:

the message processing module is used for sending or receiving switching indication information of an uplink multiple access mode, and the switching indication information is used for indicating a receiving end of the switching indication information to execute switching operation;

and the switching execution module is used for executing switching operation according to the switching indication information when the preset time is up.

It can be seen from the technical solutions provided in the embodiments of the present invention that, in the embodiments of the present invention, the switching of the uplink multiple access modes is determined according to the message passing with the opposite terminal, so that flexible and fast switching between the uplink multiple access modes in the hybrid multiple access mode is achieved. In addition, due to the fact that the switching time is preset, switching operation can be controlled through the switching time, switching of an uplink multiple access mode can be achieved simultaneously with the opposite terminal device, and therefore stability of the system is improved.

Drawings

FIG. 1 is a schematic diagram of a processing procedure provided in a first embodiment of the present invention;

FIG. 2 is a schematic diagram of a processing procedure provided in a second embodiment of the present invention;

FIG. 3 is a schematic diagram of a processing procedure provided in a third embodiment of the present invention;

FIG. 4 is a schematic diagram of a processing procedure provided in a fourth embodiment of the present invention;

FIG. 5 is a schematic diagram of a processing procedure provided in a fifth embodiment of the present invention;

FIG. 6 is a schematic diagram of a processing procedure provided in a sixth embodiment of the present invention;

FIG. 7 is a schematic diagram of a processing procedure provided in a seventh embodiment of the present invention;

fig. 8 is a schematic diagram of a processing procedure provided in an eighth embodiment of the present invention;

FIG. 9 is a schematic diagram of a processing procedure according to a ninth embodiment of the present invention;

fig. 10 is a schematic structural diagram of a handover processing apparatus of an uplink multiple access scheme according to an embodiment of the present invention.

Detailed Description

In this embodiment of the present invention, a processing procedure based on a sending end may include: sending switching indication information of an uplink multiple access mode to a receiving end, where the switching indication information of the uplink multiple access mode is used to indicate the receiving end of the switching indication information to perform a switching operation, and specifically may be a target uplink multiple access mode, or an identifier of the target uplink multiple access mode, or a switching indicator of the uplink multiple access mode, or the like; and executing the switching operation when the preset time is reached. The sending end may be a base station or a UE.

The embodiment of the present invention may further include a process of determining whether the uplink multiple access mode can be switched, and specifically, the process may include: obtaining feedback information sent by a receiving end, wherein the feedback information comprises: agreeing to switch the uplink multiple access mode, or refusing to switch the uplink multiple access mode, or resending the switching indication information when the specified lag time is reached; and judging according to the feedback information, if the feedback information indicates that the uplink multiple access mode is approved to be switched, judging that the switching operation can be carried out, and switching the uplink multiple access mode when the preset time is up, if the feedback information indicates that the uplink multiple access mode is refused to be switched, not executing the switching operation, if the feedback information indicates that the switching indication information is retransmitted when the specified lag time is up, not executing the switching operation, and retransmitting the switching indication information of the uplink multiple access mode according to the feedback information.

In the above embodiment of the present invention, before performing the handover operation, the sending end may further send information of the reason for the uplink multiple access mode handover to the receiving end. For example, when the handover indication information of the uplink multiple access scheme is sent, the information of the cause of the handover of the uplink multiple access scheme is carried, or the information of the cause of the handover of the uplink multiple access scheme is sent through other messages.

In order to ensure the normal and reliable operation of the system, when it is determined that the uplink multiple access mode can be switched, the transmitting end and the receiving end need to perform the switching operation at the same time, and the preset time is to control the execution time of the switching operation, so as to achieve synchronization. In this embodiment of the present invention, the operation related to the determination of the preset time by the sending end may specifically include:

setting switching start time information, determining the preset time according to the set switching start time information, in order to realize switching synchronization, sending the set switching start time information to a receiving end by a sending end, monitoring the switching start time information by the sending end and the receiving end, if the switching of the uplink multiple access mode is required, and when the preset switching start time is reached, simultaneously executing the switching operation of the uplink multiple access mode;

or, determining that the preset time is reached according to the received switching start time information sent by the receiving end, monitoring the switching start time information by the sending end and the receiving end, and if the switching of the uplink multiple access mode is required, and executing the switching operation of the uplink multiple access mode when the preset switching start time is reached;

the handover start time information may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number. In addition, if the sending end and the receiving end both send the switching start time information, the switching start time information sent by one end can be used as the standard according to the convention;

or, the preset time may be determined according to a set timer, where the time length of the timer is a preset value, and specifically, the time length of the timer may be preset through negotiation, so as to ensure that the sending end and the receiving end in the system simultaneously execute the switching of the uplink multiple access mode.

If the preset time is determined to be reached according to the timing of the set timer, starting the timer when the uplink multiple access mode can be switched, and switching the uplink multiple access mode when the timing of the timer is finished; or, the timer may be started when the handover indication information of the uplink multiple access scheme is sent, if it is determined that the uplink multiple access scheme can be handed over, the handover is executed when the timer finishes counting, otherwise, the timer is stopped counting.

In the embodiment of the present invention, the sent uplink multiple access mode switching indication information may further carry mandatory indication information, and in this case, if the switching operation is controlled by the switching start time information, both the sending end and the receiving end execute the switching operation when the time indicated by the switching start time information arrives; if the switching operation is controlled by the timer timing, the sending end starts the timer when sending the switching indication information of the uplink multiple access mode and executes the switching operation when the timer timing is finished, and the receiving end starts the timer when receiving the switching indication information of the uplink multiple access mode and executes the switching operation when the timer timing is finished. In addition, the sending end may send the switching indication information of the uplink multiple access method, that is, the indication that the uplink multiple access method needs to be switched, and execute the switching operation when a preset time arrives, where the switching indication information of the uplink multiple access method does not carry the instruction information of the forced execution.

When the transmitting end corresponds to multiple receiving ends, for example, a base station corresponds to multiple UEs, the transmitting end may further transmit the handover indication information of the uplink multiple access manner in a multicast manner. The specific multicast mode may be broadcast or multicast, etc. At this time, in order to ensure the normal operation of the system, when the uplink multiple access scheme needs to be switched, the transmitting end and the target receiving end should perform a switching operation simultaneously. When the sending end sends the switching indication information of the uplink multiple access mode in a multicast mode, if the switching operation is controlled by the switching start time information sent by the receiving ends, or the sending end and at least one receiving end both send the switching start time information, there may be a situation that a plurality of switching start time information are inconsistent, at this time, the switching start time information sent by one end may be used as the standard according to a predetermined convention. In addition, if at least one receiving end sends feedback information to the sending end, and the feedback information is inconsistent, the sending end can judge whether the switching operation can be executed according to the preset convention, and sends the judgment result to each receiving end.

When the transmitting end is a base station, in order to further improve the performance of the UE in communicating by using the target uplink multiple access method, the transmitting end may further transmit specific physical layer parameters used by the receiving end for switching to the target uplink multiple access method before a preset time (i.e., before the receiving end performs a switching operation).

In the technical solution provided in the above embodiment of the present invention, the method for sending the switching indication information of the uplink multiple access method may specifically be sending an uplink multiple access method switching request message or a switching command message, where in this case, if the sending end obtains the feedback information, the feedback information is an uplink multiple access method switching response message; the switching indication information of the uplink multiple access mode may also be carried in a RRC (radio resource Control) connection reconfiguration message (when the sending end is a base station), and in this case, if the sending end obtains feedback information, the feedback information is included in an RRC connection reconfiguration complete message or an RRC connection reestablishment request message sent by the receiving end; or the switching indication information of the uplink multiple access mode is carried in the RRC connection reestablishment request message (when the sending end is the UE), in this case, if the sending end obtains the feedback information, the feedback information is included in the RRC connection reestablishment message or the RRC connection reestablishment reject message or the delay request message; or the message 3 in the initial random access process carries the switching indication information of the uplink multiple access mode, in this case, if the sending end obtains the feedback information, the feedback information is contained in the message 4 in the initial random access process; or, the RRC connection establishment request message carries the handover indication information of the uplink multiple access method, in this case, if the sending end obtains the feedback information, the feedback information is included in the RRC connection establishment message or the RRC connection establishment rejection message; or, the MAC CE PDU (MAC Control PDU, MAC layer Control PDU; MAC, Medium Access Control; PDU, protocol data Unit) may also be used to send the switching indication information of the uplink multiple Access mode, that is, the MAC CE PDU is composed of information of the uplink multiple Access mode to be switched to, and correspondingly, if the sending end obtains the feedback information, the received feedback information may also be included in other messages sent by the receiving end or transmitted by using the MAC CE PDU; or, the physical layer signaling is used to indicate the switching indication information of the uplink multiple access mode, and correspondingly, if the sending end obtains the feedback information, the feedback information is also transmitted by using the physical layer feedback signaling.

The processing procedure for the receiving end may specifically include: receiving switching indication information of an uplink multiple access mode sent by a sending end, wherein the switching indication information of the uplink multiple access mode can be a target uplink multiple access mode, or an identifier of the target uplink multiple access mode, or a switching indicator of the uplink multiple access mode, and the like; and executing the switching operation when the preset time is reached. The receiving end may be a base station or a UE.

After receiving the handover indication information of the uplink multiple access scheme, the processing procedure may further include: and judging whether to switch the uplink multiple access mode, if so, executing the switching operation when the preset time is reached, and otherwise, refusing to execute the switching operation.

In order to ensure the normal and reliable operation of the system, the sending end and the receiving end need to execute the switching operation at the same time, so the preset time is to control the execution time of the switching operation, so as to realize the synchronization. In this embodiment of the present invention, the operation related to the receiving end determining the preset time arrival may specifically include:

setting switching start time information, determining the preset time according to the set switching start time information, in order to realize switching synchronization, sending the set switching start time information to a sending end by a receiving end, monitoring the switching start time information by the sending end and the receiving end, and if switching of an uplink multiple access mode can be carried out, when the preset switching start time is reached, simultaneously executing switching operation of the uplink multiple access mode;

or, determining that the preset time is reached according to the received switching start time information sent by the sending end, monitoring the switching start time information by the sending end and the receiving end, and if the switching of the uplink multiple access mode can be performed, and when the preset switching start time is reached, simultaneously performing the switching operation of the uplink multiple access mode;

And if the preset time is determined to be reached according to the timing of the set timer, starting the timer when the uplink multiple access mode can be switched is determined, executing the switching operation when the timing of the timer is ended, otherwise, not starting the timer.

In the above embodiment of the present invention, after determining whether to perform uplink multiple access mode switching, feedback information is sent to the sending end, and if the switching is agreed to be performed, the feedback information includes information agreeing to switch the uplink multiple access mode, and if the switching is not agreed to be performed, the feedback information includes information refusing to switch the uplink multiple access mode or switching indication information is sent again when a specified delay time arrives.

In addition, if the received switching indication information of the uplink multiple access mode carries information to be enforced, the receiving end judges that switching needs to be executed according to the information, and at this time, the receiving end does not need to send feedback information to the sending end.

The uplink multiple access mode switching instruction information may indicate that the uplink multiple access mode needs to be switched when the uplink multiple access mode switching instruction information is received, and at this time, the uplink multiple access mode switching instruction information does not carry information to be enforced.

In the foregoing embodiment of the present invention, if feedback information needs to be sent to the sending end, the method for sending feedback information may specifically include:

the feedback information is carried in the switching response message of the uplink multiple access mode;

or,

when the receiving end is UE, the feedback information is carried in the RRC connection reconfiguration completing message or the RRC connection reestablishment request message;

or,

when the receiving end is a base station, the feedback information is carried in an RRC connection reestablishment message or an RRC connection reestablishment rejection message or a delay request message;

or,

the feedback information is carried in the message 4 of the initial random access process;

or,

the feedback information is carried in the RRC connection establishment message or the RRC connection establishment rejection message;

or,

the feedback information is carried in the uplink Multiple access mode switching feedback MAC CE PDU (which can be named as UL Multiple access switching PDU), namely the MAC CE PDU consists of the uplink Multiple access mode switching feedback information;

or,

and sending the feedback information by using physical layer feedback signaling.

When the receiving end is a base station, in order to further improve the performance of the UE performing communication by using the target uplink multiple access method, the receiving end may further send the physical layer parameter for switching to the target uplink multiple access method to the transmitting end before a preset time (i.e., before the receiving end performs the switching operation).

The uplink multiple access method in the embodiment of the present invention may also be referred to as an uplink transmission mode.

The following detailed description of specific implementations of embodiments of the invention in practical applications will be made with reference to the accompanying drawings.

If the LTE-Advanced system supports multiple uplink multiple access schemes, there may be a handover between the uplink multiple access schemes. The following application embodiments will describe in detail the handover procedure of the uplink multiple access scheme in the LTE-Advanced system.

Application embodiment 1

In the first embodiment of the present invention, a base station (in the embodiment of the present invention, the base station in the LTE-Advanced system is referred to as an eNodeB +) initiates a handover request, and a specific processing procedure of the handover request is shown in fig. 1, and may include the following operations:

11. eNodeB + sends an uplink multiple access mode switching request message or a switching command message to UE;

12. UE returns a response message of switching the uplink multiple access mode to eNodeB +;

13. if the handover is needed, the eNodeB + and the UE perform the handover operation simultaneously.

In order to ensure that the eNodeB + and the UE perform handover operations simultaneously, the eNodeB + may set a handover start time of the uplink multiple access scheme in the handover request message or the handover command message, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number. And if the UE determines to switch the uplink multiple access mode, informing eNodeB +, eNodeB + and the UE of switching operation of the uplink multiple access mode when the switching start time is reached through a switching response message of the uplink multiple access mode. If the UE informs the eNodeB + not to perform the switching through the uplink multiple access mode switching response message, the eNodeB + and the UE still use the original uplink multiple access mode.

In addition, the switching operation may also be controlled by a timer, specifically, when the UE sends the uplink multiple access switching response message, if it is determined that the switching is required, the timer is started, and the switching operation of the uplink multiple access mode is executed when the timer is timed out; and the eNodeB + starts a timer if the uplink multiple access switching response message is received and the switching is required, and executes the switching operation when the timer finishes timing, wherein the timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected transmission time of the uplink multiple access switching response message. Or, when receiving the uplink multiple access mode switching request message or switching command message, if the need of switching is confirmed, the UE starts a timer and executes the switching operation of the uplink multiple access mode when the timer finishes timing; and the eNodeB + starts a timer when sending the uplink multiple access mode switching request message or the switching command message, if the switching is determined to be needed, the eNodeB executes the switching operation when the timer finishes timing, otherwise, the eNodeB stops the timer. And the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the uplink multiple access mode switching request message or the switching command message. The timer timing duration of the eNodeB + and the UE can be determined by a predetermined convention. If the execution time is controlled by the timer, the uplink multiple access mode switching request message or the switching command message does not need to carry the switching start time.

In order to further improve the performance of the UE in communicating by using the target uplink multiple access method, the eNodeB + may further carry specific physical layer parameters when using the target uplink multiple access method in the uplink multiple access method handover request message or handover command message; or, after confirming that the handover is required according to the received uplink multiple access scheme handover response message and before the handover start time arrives, sending the specific physical layer parameters of the target uplink multiple access scheme.

In the first embodiment of the application of the present invention, the uplink multiple access mode handover request message or the handover command message sent by the eNodeB + may further carry forced handover indication information, that is, a forced handover indicator is added to the message, so that the UE may not need to feed back an uplink multiple access mode handover response message, and the eNodeB + confirms that handover is required. In addition, there may be a case where the eNodeB + sends the handover request message/handover command message indicating that the uplink multiple access mode needs to be handed over, and at this time, the UE may not send the feedback information, and when the preset time is reached, the eNodeB + and the UE perform the handover operation at the same time.

If the handover request message or handover command message of the uplink multiple access mode carries mandatory handover indication information, or the uplink multiple access mode handover request message or handover command message is sent to indicate that the uplink multiple access mode needs to be handed over, when the timer is used to control the execution time, the specific operation may be: the eNodeB + starts a timer when sending an uplink multiple access mode switching request message or a switching command message, and executes switching operation when the timer finishes timing; and the UE starts a timer when receiving the uplink multiple access mode switching request message or the switching command message, and executes switching operation when the timer finishes timing, wherein the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the uplink multiple access switching request message or the switching command message.

In the first application embodiment of the invention, the eNodeB + and the UE execute the switching operation after confirming that the switching of the uplink multiple access modes needs to be carried out through information interaction, thereby realizing the flexible and quick switching between the uplink multiple access modes in the hybrid multiple access mode. In addition, the switching start time is set, so that the eNodeB + and the UE can simultaneously execute the switching operation, and the stability of the system operation is improved.

Application example two

In the second embodiment of the present invention, the UE initiates the handover request, and the specific processing procedure is as shown in fig. 2, and may include the following operations:

21. UE sends an uplink multiple access mode switching request message to eNodeB +;

22. the eNodeB + returns an uplink multiple access mode switching response message to the UE;

23. if the handover is needed, the eNodeB + and the UE perform the handover operation simultaneously.

In order to ensure that the eNodeB + and the UE perform handover operations simultaneously, the UE may set a handover start time of the uplink multiple access scheme in the uplink multiple access scheme handover request message, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number, or the like. And if the eNodeB + determines to switch the uplink multiple access mode, informing the UE through a switching response message of the uplink multiple access mode, and switching the uplink multiple access mode by both the eNodeB + and the UE when the switching starting time is reached. If the eNodeB + informs the UE not to switch through the uplink multiple access mode switching response message, the eNodeB + and the UE still use the original uplink multiple access mode.

In addition, the handover operation may also be controlled by a timer, specifically, when the eNodeB + sends the uplink multiple access handover response message, if it is determined that handover is possible, the eNodeB + starts the timer, and executes the handover operation of the uplink multiple access scheme when the timer expires; and the UE starts a timer when receiving the uplink multiple access switching response message and if the uplink multiple access switching response message confirms that the switching can be carried out, and executes the switching operation when the timer is timed out, wherein the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the uplink multiple access switching response message. Or, when receiving the uplink multiple access handover request message, if it is determined that handover can be performed, the eNodeB + starts a timer, and executes a handover operation of an uplink multiple access mode when the timer is timed out; and the UE starts a timer when sending the uplink multiple access switching request message, if the UE confirms that the switching can be carried out, the UE executes the switching operation when the timer finishes timing, and otherwise, the UE stops the timer. And the timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected delivery time of the uplink multiple access handover message. The timer timing duration of the eNodeB + and the UE can be determined by a predetermined convention. If the execution time is controlled by the timer, the uplink multiple access switching request message does not need to carry the switching start time.

In order to further improve the performance of the UE in communicating by using the target uplink multiple access method, the eNodeB + may further carry specific physical layer parameters when using the target uplink multiple access method in the uplink multiple access method handover response message; alternatively, the specific physical layer parameter of the target uplink multiple access scheme may be sent after sending the uplink multiple access scheme handover response message to confirm that handover is possible and before the handover start time is reached.

In the second application embodiment of the invention, the eNodeB + and the UE execute the switching operation after confirming that the switching of the uplink multiple access modes needs to be carried out through information interaction, thereby realizing the flexible and quick switching between the uplink multiple access modes in the hybrid multiple access mode. In addition, the switching start time is set, so that the eNodeB + and the UE can simultaneously execute the switching operation, and the stability of the system operation is improved.

Application example three

In the third embodiment of the present invention, an eNodeB + initiates a handover message of an uplink multiple access scheme, and the message is included in the RRC connection reconfiguration message. The specific processing procedure is shown in fig. 3, and may include the following operations:

31. the eNodeB + sends an RRC connection reconfiguration message to the UE, and adds uplink multiple access mode switching information in the RRC connection reconfiguration message, where the uplink multiple access mode switching information is used to initiate a request for switching an uplink multiple access mode to the UE, and optionally, a reason for switching the uplink multiple access mode may also be set in the RRC connection reconfiguration message;

32. the UE receives the RRC connection reconfiguration message and judges whether the switching of the uplink transmission mode can be carried out or not according to the uplink transmission mode indicated by the uplink multiple access mode switching information, if so, an RRC connection reconfiguration completion message is fed back to the eNodeB + and carries feedback information indicating that the switching of the uplink transmission mode can be carried out, otherwise, an RRC connection reestablishment request message is fed back to the eNodeB + and carries switching information refusing to carry out the uplink transmission mode or uplink multiple access mode switching failure information;

33. if the eNodeB + receives the RRC connection reconfiguration completion message, the eNodeB + and the UE simultaneously execute the switching operation of the uplink multiple access mode; if the eNodeB + receives the RRC connection reestablishment request message, and the RRC connection reestablishment request message carries information for refusing to execute the uplink multiple access mode switching or information for failing to execute the uplink multiple access mode switching, the eNodB and the UE still use the original uplink multiple access mode.

In order to ensure that the eNodeB + and the UE perform handover operation simultaneously, the eNodeB + may carry a handover start time of an uplink multiple access scheme in the RRC connection reconfiguration message, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number. And if the UE determines to switch the uplink multiple access mode, the eNodeB + and the UE both carry out the switching operation of the uplink multiple access mode when the switching starting time is up. In addition, the handover operation may also be controlled by a timer, specifically, the eNodeB + starts the timer when sending the RRC connection reconfiguration message, and if it is determined that handover is possible, performs the handover operation of the uplink multiple access scheme when the timer times out; otherwise, the timer is stopped. And when the UE receives the RRC connection reconfiguration message, if the switching is required, starting a timer, and executing the switching operation when the timer of the UE is ended, otherwise, not starting the timer. And the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected delivery time of the RRC connection reconfiguration message. In addition, when receiving the RRC connection reconfiguration complete message, the eNodeB + may start a timer if it is determined that handover is possible, and perform a handover operation of the uplink multiple access scheme when the timer expires; and when the UE sends the RRC connection reconfiguration complete message, if the UE determines that the switching is required, starting a timer, and executing the switching operation when the timer of the UE finishes timing, wherein the timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected transmission time of the RRC connection reconfiguration message.

In order to further improve the performance of the UE in communicating by using the target uplink multiple access method, the eNodeB + may further carry specific physical layer parameters when using the target uplink multiple access method in the RRC connection reconfiguration message; or, the specific physical layer parameter of the target uplink multiple access scheme may be sent after the received RRC connection reconfiguration complete message, before the handover start time is reached, or before the timer expires.

In the third application embodiment of the present invention, the RRC connection reconfiguration message sent by the eNodeB + may further carry an indicator to indicate the UE to perform the forced uplink multiple access mode switching, so that the UE may not feed back the RRC connection reconfiguration complete message. In addition, it may also be that, when the eNodeB + sends the RRC connection reconfiguration message and carries the handover indication information of the uplink multiple access scheme in the message, it indicates that the UE needs to perform handover of the uplink multiple access scheme.

In the third embodiment of the present invention, the message for switching the uplink multiple access scheme between the eNodeB + and the UE is included in the related message for RRC connection reconfiguration, so that the message transmission between the eNodeB + and the UE is reduced, the switching time is shortened, and the system operating efficiency is improved.

Application example four

In the fourth embodiment of the present invention, the UE initiates the handover message of the uplink multiple access scheme, and the message is included in the RRC connection reestablishment request message. The specific processing procedure is shown in fig. 4, and may include the following operations:

41. the UE sends an RRC connection reestablishment request message to an eNodeB +, and uplink multiple access mode switching information is added in the RRC connection reestablishment request message and is used for initiating a switching request of an uplink multiple access mode to the eNodeB +, optionally, the reason for switching the uplink multiple access mode can be set in the RRC connection reestablishment request message;

42. the eNodeB + receives the RRC connection reestablishment request message, judges whether the uplink transmission mode can be switched or not, and feeds back an RRC connection reestablishment message to the UE if the uplink transmission mode can be switched, wherein the feedback message is carried in the RRC connection reestablishment message to indicate that the uplink transmission mode can be switched; if not, feeding back an RRC connection reestablishment reject message to the UE, wherein the RRC connection reestablishment reject message carries feedback information indicating that switching of the uplink transmission mode is rejected, or feeding back a delay request message to the UE, wherein a lag time is set in the delay request message, and the UE is informed to reinitiate the switching request when the lag time arrives;

43. if the UE receives the RRC connection reestablishment message, the eNodeB + and the UE simultaneously execute the switching operation of the uplink multiple access mode; otherwise, the eNoedB and the UE still use the original uplink multiple access mode.

In order to ensure that the eNodeB + and the UE perform handover operation simultaneously, the UE may carry handover start time of an uplink multiple access manner in the RRC connection reestablishment request message, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number, and the like; alternatively, the eNodeB + may carry the handover start time in the RRC connection re-establishment message. If the UE determines to perform the handover of the uplink multiple access scheme, both the eNodeB + and the UE perform the handover operation of the uplink multiple access scheme when the handover start time arrives, and if both the UE and the eNodeB + set the handover start time, for example and without limitation, the handover start time set by the eNodeB + may be defined as the standard. In addition, the switching operation may also be controlled by a timer, specifically, the UE starts the timer when sending the RRC connection reestablishment request message, and if it is determined that the switching is possible, the UE performs the switching operation of the uplink multiple access scheme when the timer finishes timing; otherwise, the timer is stopped. And the eNodeB + starts a timer if the RRC connection reestablishment request message is received and handover can be performed, executes handover operation when the timer of the eNodeB + is timed out, and otherwise does not start the timer. The timing duration of the UE is the sum of the timing duration of the eNodeB + timer and the expected delivery time of the RRC connection reestablishment request message. Or, when receiving the RRC connection reestablishment message, the UE starts a timer if it is determined that the handover is possible, and performs a handover operation of the uplink multiple access mode when the timer expires; when the eNodeB + sends the RRC connection reestablishment message, if the RRC connection reestablishment message is confirmed to be capable of being switched, a timer is started, the switching operation is executed when the timer of the eNodeB + finishes timing, and otherwise, the timer is not started; the timing duration of the eNodeB + is the sum of the timing duration of the UE's timer and the expected delivery time of the RRC connection reestablishment message.

The eNodeB + can also carry the concrete physical layer parameter when using the target uplink multiple access mode in the RRC connection reestablishment message; alternatively, the specific physical layer parameter of the target uplink multiple access scheme may be transmitted after the RRC connection re-establishment message is transmitted, before the handover start time is reached, or before the timer expires.

In the fourth embodiment of the present invention, the message for switching the uplink multiple access mode between the eNodeB + and the UE is included in the related message for RRC connection re-establishment, so that the message transmission between the eNodeB + and the UE is reduced, the switching time is shortened, and the system operating efficiency is improved.

Application example five

In the fifth embodiment of the present invention, an eNodeB + initiates a handover request of an uplink multiple access scheme, and the handover request of the uplink multiple access scheme is sent by using a MAC CE PDU. The specific processing procedure is shown in fig. 5, and may include the following operations:

51. the method comprises the steps that an eNodeB + sends an uplink multiple Access Switching MAC CE PDU (which can be named as ULMultiple Access Switching PDU) to UE for initiating a Switching request of the uplink multiple Access to the UE, wherein the MAC CE PDU comprises Switching starting time of the uplink multiple Access, and the Switching starting time can be specifically represented by a system frame number, a subframe number or a combination of the system frame number and the subframe number; optionally, the information may also include information such as a reason for initiating the uplink multiple access mode switching request;

52. UE receives the MAC CE PDU for Switching the uplink Multiple Access mode, judges whether the uplink Multiple Access mode can be switched or not, and sends a feedback message or an uplink Multiple Access mode Switching Response MAC CE PDU (which can be named as UL Multiple Access Switching Response PDU) to an eNodeB + to indicate whether the Switching can be carried out or not; optionally, the MAC CE PDU includes a handover start time of an uplink multiple access scheme, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number;

53. and the eNodeB + judges whether the uplink multiple access mode needs to be switched or not according to the received feedback message or the uplink multiple access switching response MAC CE PDU, and if so, the eNodeB + and the UE both execute the switching operation of the uplink multiple access mode when the switching starting time is up.

If the UE and eNodeB + both set the handover start time, for example and not limitation, the handover start time set by eNodeB + may be defined as the standard. In addition, the switching operation may also be controlled by a timer, specifically, when the UE sends the uplink multiple access switching response MAC CE PDU, if it is determined that the switching is required, the timer is started, and when the timer finishes timing, the switching operation of the uplink multiple access mode is executed; and the eNodeB + starts a timer if the uplink multiple access switching response MAC CE PDU is received and switching is needed, executes switching operation when the timer finishes timing, and otherwise does not start the timer. The timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected delivery time of the uplink multiple access handover response MAC CE PDU. Or when the UE receives the uplink multiple access switching MAC CE PDU, if the switching is required, a timer is started, and the switching operation of the uplink multiple access mode is executed when the timer finishes timing; and the eNodeB + starts a timer when the uplink multiple access switching MAC CE PDU is sent, executes switching operation when the timer finishes timing if the switching is confirmed to be needed, and terminates the timer if the switching is not needed. The timing duration of the eNodeB + is the sum of the timing duration of the UE's timer and the expected delivery time of the uplink multiple access handover MAC CE PDU.

In order to further improve the performance of the UE for communication by using the target uplink multiple access mode, the eNodeB + can also carry specific physical layer parameters when the target uplink multiple access mode is used in the uplink multiple access mode switching MAC CE PDU; or, after receiving a feedback message or an uplink multiple access scheme switching response MAC CE PDU sent by the UE and before the switching start time arrives, sending a specific physical layer parameter of the target uplink multiple access scheme.

In the fifth embodiment of the application of the present invention, the uplink multiple access mode switching MAC CE PDU sent by the eNodeB + may further carry an indicator to indicate the UE to perform the forced uplink multiple access mode switching, and the UE may not send the feedback message or the MAC CE PDU. In addition, the eNodeB + sends an uplink multiple access mode switching MAC CE PDU, which indicates that the UE needs to perform uplink multiple access mode switching, and the eNodeB + and the UE perform switching operation at the same time when the switching start time arrives, at this time, the uplink multiple access mode switching MAC CE PDU does not carry an indicator for performing forced switching.

By way of example and not limitation, the MAC CE PDU transmitted by the eNodeB + may be named "UL Multiple Access Switching PDU", and the MAC CE PDU transmitted by the UE may be named "UL Multiple Access Switching response PDU", and may be named as another MAC CE PDU, but the method of using the MAC CE PDU is within the scope of the present invention.

In the fifth embodiment of the present invention, the eNodeB + and the UE switch the uplink multiple access mode through the control function of the MAC layer, thereby reducing the signaling overhead of the system and improving the switching speed.

Application example six

In the sixth embodiment of the present invention, the UE initiates the handover request of the uplink multiple access scheme, and the handover request of the uplink multiple access scheme is sent by using the MAC CE PDU. The specific processing procedure is shown in fig. 6, and may include the following operations:

61. the UE sends an uplink multiple access mode switching MAC CE PDU to the eNodeB + to initiate a switching request of the uplink multiple access mode to the eNodeB +, the uplink multiple access mode switching MAC CE PDU comprises switching starting time of the uplink multiple access mode, and the switching starting time can be specifically represented by a system frame number, a subframe number or a combination of the system frame number and the subframe number and the like; optionally, the information may also include information such as a reason for initiating the uplink multiple access mode switching request;

62. the eNodeB + receives the MAC CE PDU for uplink Multiple Access mode Switching, determines whether the uplink Multiple Access mode can be switched, and sends a feedback message or an uplink Multiple Access mode Switching Response MAC CE PDU (which may be named as an UL Multiple Access Switching Response PDU) to the UE, indicating whether the handover can be performed, the eNodeB + may optionally include a handover start time in the feedback message or the MAC CE PDU, where the handover start time may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number, and the like;

if the UE and the eNodeB + both set the switching start time, a certain switching start time can be specified according to the prior convention;

63. and the UE judges whether the uplink multiple access mode needs to be switched or not according to the received feedback message or the uplink multiple access mode switching response MAC CE PDU sent by the eNodeB +, and if so, the eNodeB + and the UE both execute the switching operation of the uplink multiple access mode when the switching starting time is reached.

In order to implement the eNodeB + and the UE to perform the handover operation simultaneously, the handover operation may be controlled by a timer, specifically, if it is determined that the handover is possible, the eNodeB + starts the timer when sending the uplink multiple access mode handover response MAC CE PDU, and performs the handover operation of the uplink multiple access mode when the timer is over; and when the UE receives the uplink multiple access switching response MAC CE PDU, if the UE confirms that the switching can be carried out, starting a timer, and executing the switching operation when the timer is timed to be over, wherein the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the uplink multiple access switching response MAC CE PDU.

Or, when receiving the uplink multiple access mode switching MAC CE PDU, the eNodeB + starts a timer if it is determined that the switching can be performed, and executes the switching operation of the uplink multiple access mode when the timer is timed out; and the UE starts a timer when sending the uplink multiple access switching MAC CE PDU, if the switching can be carried out, the switching operation is executed when the timer finishes timing, and if the switching can not be carried out, the timer is terminated. And the timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected delivery time of the uplink multiple access handover MAC CE PDU.

In order to further improve the performance of the UE in communicating by using the target uplink multiple access mode, the eNodeB + may also carry specific physical layer parameters when using the target uplink multiple access mode in the feedback message or the uplink multiple access mode switch response MAC CE PDU; or, after sending the feedback message or the uplink multiple access scheme switching response MAC CE PDU and before the switching start time arrives, the specific physical layer parameter of the target uplink multiple access scheme may be sent.

By way of example and not limitation, the MAC CE PDU transmitted by the UE may be named "UL Multiple Access switching PDU", the MAC CE PDU transmitted by the eNodeB may be named "UL Multiple Access switching response PDU", and certainly may be named as other MAC CE PDU, but the MAC CE PDU is used in a manner within the scope of the present invention.

In the sixth embodiment of the present invention, the eNodeB + and the UE perform uplink multiple access mode switching through the control function of the MAC layer, thereby reducing the signaling overhead of the system and improving the switching speed.

Application example seven

If the LTE-Advanced system defines SC-FDMA as the default initial uplink random access mode (for example, but not limited thereto, it is considered that other uplink multiple access modes can also be defined as the default initial uplink multiple access modes), and the UE has determined that it needs to use OFDMA or other uplink multiple access modes for communication when or before the initial uplink random access starts, in the initial uplink random access process shown in fig. 7, the handover processing operation may specifically include:

the message 3 in the initial random access procedure includes an "uplink transmission mode switching" IE (where the "uplink transmission mode switching" IE may be specifically included in an uplink transmission message scheduled for the first time, or may be included in an RRC connection establishment request message sent by the UE to the eNodeB +), optionally, the UE may carry, in the message 3 including the "uplink transmission mode switching" IE, start time information for switching, where the start time for switching may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number, or the like;

after receiving the message, the eNodeB sends a message 4 of an initial random access process, that is, a contention Resolution message (contention Resolution message), to the UE, and confirms that the UE can use OFDMA or other uplink multiple access modes through the message 4, optionally, the eNodeB + sets and sends a start time of uplink transmission mode handover to the UE, where the start time of the handover may be specifically represented by a system frame number, a subframe number, or a combination of the system frame number and the subframe number, and the like;

when the switching start time is up, the eNodeB + and the UE simultaneously switch the uplink multiple access mode. If the eNodeB + and the UE both set the handover start time, the handover start time set at one end may be agreed in advance.

In order to further improve the performance of the UE communicating by using the target uplink multiple access method, the eNodeB + may further send specific physical layer parameters when using the OFDMA or other uplink multiple access methods to the UE through another message before the handover start time is reached in the message 4 or after the message 4 is sent.

In order to ensure that the eNodeB + and the UE perform the handover operation at the same time, the handover operation may also be controlled by a timer, specifically, if it is determined that the handover can be performed, the eNodeB + starts the timer when sending the initial random access message 4, and performs the handover operation of the uplink multiple access mode when the timer expires; and when the UE receives the initial random access message 4, starting a timer if the UE can perform handover, and executing a handover operation when the timer is timed out, wherein the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected delivery time of the initial random access message 4. Or, if the handover is confirmed, the eNodeB + starts a timer when receiving the initial random access message 3, and executes the handover operation of the uplink multiple access mode when the timer is over; and the UE starts a timer when sending the initial random access message 3, executes switching operation when the timer finishes timing if the switching can be carried out, and stops the timer if the switching can not be carried out. And the timing duration of the UE is the sum of the timing duration of the eNodeB + timer and the expected delivery time of the initial random access message 3.

In the above processing procedure, if the eNodeB + rejects the UE to use the OFDMA or other uplink multiple access schemes, the eNodeB + may include an indicator for rejecting the OFDMA in the message 4 to notify the UE that the uplink multiple access scheme cannot be switched, or may include delay transmission information in the message 4, where the delay transmission information sets a lag time to notify the UE to reinitiate the uplink transmission mode switching request when the lag time arrives.

In the seventh application embodiment of the present invention, the eNodeB + and the UE perform the handover operation after confirming that the uplink multiple access mode needs to be switched through information interaction, thereby realizing flexible and fast handover between the uplink multiple access modes in the hybrid multiple access mode. In addition, the switching start time is set, so that the eNodeB + and the UE can simultaneously execute the switching operation, and the stability of the system operation is improved.

Application example eight

In the eighth embodiment of the present invention, an eNodeB + initiates a handover request of an uplink multiple access scheme, and the handover request of the uplink multiple access scheme is sent by using a physical layer fast indication signaling. The specific processing procedure is shown in fig. 8, and may include the following operations:

81. the eNodeB + sends a Physical layer fast indication signaling (which may be named as a Physical layer uplink multiple access mode handover fast indication signaling) to the UE, and is configured to initiate a handover request of an uplink multiple access mode to the UE, where the Physical layer fast indication signaling may specifically be sent by using a PDCCH (Physical Downlink Control Channel) or a PDSCH (Physical Downlink Shared Channel). That is, the eNodeB + transmits an uplink multiple access method handover indicator (or a target uplink multiple access method identifier) by using the PDCCH or the PDSCH;

82. the UE receives the physical layer fast indication signaling; specifically, the UE detects a PDCCH or PDSCH channel, and when the UE detects an uplink multiple access mode switching indicator (or a target uplink multiple access mode identifier), switches the uplink multiple access mode when a preset time arrives. Further, the UE may determine whether to perform Uplink multiple Access mode handover, and send a Physical layer fast feedback signaling to the eNodeB + to indicate whether to accept Uplink multiple Access mode handover (which may be named as a Physical layer Uplink multiple Access mode handover fast response signaling), indicating whether to perform handover, where the Physical layer fast feedback signaling may be specifically sent by using a PUCCH (Physical Uplink control Channel), a PRACH (Physical Random Access Channel), or a PUSCH (Physical Uplink Shared Channel). Namely, UE sends a physical layer uplink multiple access mode switching fast response signaling by using PUCCH, PRACH or PUSCH;

83. and the eNodeB + judges whether the uplink multiple access mode needs to be switched according to the received physical layer uplink multiple access mode switching quick response signaling sent by the UE, and if so, both the eNodeB + and the UE execute the switching operation of the uplink multiple access mode when the preset time is up.

In order to ensure that the eNodeB + and the UE perform handover simultaneously, the handover operation may be controlled by a timer, specifically, if it is determined that handover is required, the UE starts the timer when sending the physical layer uplink multiple access mode handover fast response signaling, and performs the handover operation of the uplink multiple access mode when the timer finishes timing; and the eNodeB + starts a timer if the handover can be performed is confirmed when the eNodeB + receives the physical layer uplink multiple access mode handover quick response signaling, and executes the handover operation when the timer finishes timing, wherein the timing duration of the UE is the sum of the timing duration of the timer of the eNodeB + and the expected transmission time of the physical layer uplink multiple access mode handover quick response signaling.

Or, when receiving the physical layer uplink multiple access mode switching fast indication signaling, the UE starts a timer if it is determined that the switching can be performed, and executes the switching operation of the uplink multiple access mode when the timer is timed out; and the eNodeB + starts a timer when sending the physical layer uplink multiple access mode switching fast indication signaling, executes switching operation when the timer finishes timing if the switching can be confirmed, and stops the timer if the switching can not be confirmed. And the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the physical layer uplink multiple access mode switching fast indication signaling.

In order to further improve the performance of the UE in communicating by using the target uplink multiple access method, the eNodeB + may further send specific physical layer parameters of the target uplink multiple access method before the preset time arrives.

In the eighth application embodiment of the present invention, the eNodeB + and the UE perform the handover operation after confirming that the uplink multiple access mode needs to be switched through information interaction, thereby implementing flexible and fast handover between the uplink multiple access modes in the hybrid multiple access mode. In addition, the switching start time is set, so that the eNodeB + and the UE can simultaneously execute the switching operation, and the stability of the system operation is improved.

Application example nine

In the ninth application embodiment of the present invention, the UE initiates a handover request of an uplink multiple access scheme, and the handover request of the uplink multiple access scheme is sent by using a physical layer fast indication signaling. The specific processing procedure is shown in fig. 9, and may include the following operations:

91. the UE sends a physical layer fast indication signaling (which may be named as physical layer uplink multiple access mode switching fast indication signaling) to the eNodeB + to initiate a switching request of an uplink multiple access mode to the UE, where the physical layer fast indication signaling is sent using a physical uplink control channel or a physical uplink shared channel or a physical random access channel, and may specifically be sent using a PUCCH or a PUSCH or a PRACH channel. That is, the UE transmits an uplink multiple access mode handover indicator (or a target uplink multiple access mode identifier) by using the PDCCH, the PRACH, or the PDSCH;

92. eNodeB + receives the physical layer fast indication signaling; specifically, the eNodeB + detects a PUCCH, PRACH, or PUSCH channel, and when detecting an uplink multiple access mode handover indicator (or a target uplink multiple access mode identifier), the eNodeB + determines whether to perform uplink multiple access mode handover, and sends a physical layer fast feedback signaling to the UE to indicate whether to accept uplink multiple access mode handover (which may be named as a physical layer uplink multiple access mode handover fast response signaling), indicating whether handover is possible, where the physical layer fast feedback signaling may be sent using a PDCCH or a PDSCH channel. Namely, the eNodeB + sends a physical layer uplink multiple access mode switching quick response signaling by using a PDCCH or a PDSCH;

93. and the UE determines whether the uplink multiple access mode can be switched or not according to the received physical layer uplink multiple access mode switching quick response signaling sent by the eNodeB +, and if so, the eNodeB + and the UE both execute the switching operation of the uplink multiple access mode when the preset time is up.

In order to ensure that the eNodeB + and the UE perform handover simultaneously, the handover operation may be controlled by a timer, specifically, if it is determined that handover is possible, the eNodeB + starts the timer when sending the physical layer uplink multiple access mode handover fast response signaling, and performs the handover operation of the uplink multiple access mode when the timer is over; and when the UE receives the physical layer uplink multiple access mode switching quick response signaling, if the UE confirms that the switching can be carried out, starting a timer, and executing switching operation when the timer finishes timing, wherein the timing duration of the eNodeB + is the sum of the timing duration of the timer of the UE and the expected transmission time of the physical layer uplink multiple access mode switching quick response signaling.

Or, when receiving the physical layer uplink multiple access mode switching fast indication signaling, if the physical layer uplink multiple access mode switching fast indication signaling confirms that the physical layer uplink multiple access mode switching fast indication signaling can be switched, starting a timer, and executing the switching operation of the uplink multiple access mode when the timer is timed out; and the UE starts a timer when sending the physical layer uplink multiple access mode switching fast indication signaling, executes switching operation when the timer finishes timing if the switching can be confirmed, and stops the timer if the switching can not be confirmed. And the timing duration of the UE is the sum of the timing duration of a timer of an eNodeB + and the expected transmission time of the physical layer uplink multiple access mode switching fast indication signaling.

In the ninth application embodiment of the present invention, the eNodeB + and the UE perform the handover operation after confirming that the uplink multiple access mode needs to be switched through information interaction, thereby realizing flexible and fast handover between the uplink multiple access modes in the hybrid multiple access mode. In addition, the switching start time is set, so that the eNodeB + and the UE can simultaneously execute the switching operation, and the stability of the system operation is improved.

All or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: various media that can store program codes, such as ROM, RAM, magnetic or optical disks.

An embodiment of the present invention further provides a device for switching an uplink multiple access manner, where the device may be disposed at a transmitting end or a receiving end, and a structure of the device is shown in fig. 10, where a specific implementation structure may include:

a message processing module 1, configured to send, if the apparatus is located at a sending end, handover indication information of an uplink multiple access scheme, where the handover indication information is used to indicate a receiving end of the handover indication information to perform a handover operation, and if the apparatus is located at a receiving end, the message processing module 1 is used to receive the handover indication information of the uplink multiple access scheme, where the handover indication information of the uplink multiple access scheme may specifically be a target uplink multiple access scheme, or an identifier of the target uplink multiple access scheme, or a handover indicator of the uplink multiple access scheme, and so on;

and the switching execution module 2 is used for executing switching operation according to the switching indication information when the preset time is up.

The apparatus according to the above embodiment of the present invention may further include a determining module 3, configured to determine whether the uplink multiple access mode needs to be switched, where the specific determining mode may be determined according to the switching indication information of the uplink multiple access mode sent or received by the message processing module 1.

In order to ensure normal and reliable operation of the system, the sending end and the receiving end need to execute the switching operation at the same time, and the preset time is to control the execution time of the switching operation so as to realize synchronization. The handover execution module 2 may specifically include a first time control module 21 or a second time control module 21, where the first time control module 21 may specifically be configured to determine that the preset time is reached according to set handover start time information or handover start time information received by the message processing module 1, where the handover start time information includes a system frame number, or a subframe number, or a combination of the system frame number and the subframe number, and correspondingly, the message processing module 1 is further configured to send the handover start time information set by the first time control module 21; the second time control module 22 may specifically include a timing submodule 221 and a confirmation submodule 222, where the timing submodule 221 is configured to time to determine that the preset time is reached, a time duration of the timing submodule 221 is a preset value, and specifically, a timing duration of a preset timer may be negotiated, so as to ensure that a sending end and a receiving end in the system simultaneously execute switching of an uplink multiple access mode; the confirmation submodule 222 is configured to; the confirmation submodule 222 is configured to start the timing submodule 221 when it is confirmed that the uplink multiple access mode can be switched; alternatively, the timing sub-module 221 is started when the switching instruction information of the uplink multiple access scheme is transmitted, and the timing sub-module 221 is stopped if the uplink multiple access scheme cannot be switched.

In the apparatus provided in the above embodiment of the present invention, when the first time control module 21 controls the switching operation, if the first time control module 21 of the apparatus sets the switching start time information and the message processing module 1 receives the switching start time information, one of the switching start time information is used as the reference according to the predetermined specification.

The apparatus provided in the foregoing embodiment of the present invention may further include a feedback information processing module 4, configured to receive feedback information sent by an opposite end device when the message processing module 1 is configured to send the switching indication information of the uplink multiple access mode (that is, when the apparatus is located at the sending end); when the message processing module 1 is configured to receive handover indication information of an uplink multiple access mode (that is, when the apparatus is located at a receiving end), send feedback information to an opposite end device, where the feedback information includes: the determining module 3 may be further configured to determine whether the uplink multiple access mode needs to be switched according to the feedback information, correspondingly, to grant the uplink multiple access mode switching, or to deny the uplink multiple access mode switching, or to resend the switching indication information when the specified delay time arrives.

When the device is a base station, in order to enable the UE to successfully implement the uplink multiple access mode switching, the message processing module 1 is further configured to send a physical layer parameter used by the UE to switch to the target uplink multiple access mode before a preset time arrives.

The apparatus provided by the above-described embodiment of the present invention will be described in detail by a specific embodiment. In this embodiment, the apparatus a and the apparatus B having the above structure are included, where the apparatus a is located at a transmitting end and the apparatus B is located at a receiving end. The operation of the device a and the device B for processing the uplink multiple access mode switching may specifically include:

a message processing module A1 of the device A sends switching indication information of an uplink multiple access mode to a device B, wherein the switching indication information of the uplink multiple access mode carries switching start time information;

the message processing module B1 of the device B acquires the switching indication information of the uplink multiple access method, and the determining module B3 determines whether to execute the switching operation according to the switching indication information of the uplink multiple access method acquired by the message processing module B1, and sends feedback information to the device a;

the message processing module a1 of the apparatus a obtains the feedback information, the determining module A3 determines whether to execute the handover operation according to the feedback information obtained by the message processing module a1, if so, the first time control module a21 in the handover execution module a2 monitors the handover start time information, and when the handover start time is reached, the handover execution module a2 executes the handover operation;

in the device B, if the determination module B3 determines that the switching operation can be performed, the first time control module B21 of the switching execution module B2 monitors the switching start time information acquired by the message processing module B1, and when the switching start time is reached, the switching execution module B2 performs the switching operation.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for switching an uplink multiple access mode is characterized by comprising the following steps:

sending switching indication information of an uplink multiple access mode, wherein the switching indication information is used for indicating a receiving end of the switching indication information to execute switching operation; the switching indication information of the uplink multiple access mode carries indication information for forcibly executing the switching of the uplink multiple access mode, and the indication information for forcibly executing the switching of the uplink multiple access mode is used for indicating a receiving end to forcibly execute switching operation;

and executing the switching operation when the preset time is reached.

2. The method of claim 1, wherein the step of performing the handover operation when the preset time is reached comprises:

obtaining feedback information sent by a receiving end, wherein the feedback information comprises: agreeing to switch the uplink multiple access mode, or refusing to switch the uplink multiple access mode, or resending the switching indication information when the specified lag time is reached;

and when the uplink multiple access mode can be switched according to the judgment of the feedback information, executing switching operation when the preset time is reached.

3. The method of claim 1 or 2, wherein determining the preset time of arrival comprises:

determining the preset time according to the set or received switching start time information, wherein the switching start time information comprises a system frame number, or a subframe number, or a combination of the system frame number and the subframe number;

or,

and determining the preset time according to the timing of a set timer, wherein the duration of the timer is a preset value, and the set timer is started when the uplink multiple access mode can be switched is confirmed or is started when switching indication information of the uplink multiple access mode is sent.

4. The method of claim 3, wherein if it is determined that the preset time is reached according to the set handover start time information, the method further comprises: and sending the set switching start time information to a receiving end.

5. The method according to claim 1 or 2, characterized in that the method further comprises: and before the preset time is reached, sending physical layer parameters for switching to a target uplink multiple access mode.

6. The method according to claim 1 or 2, wherein the manner of sending the handover indication information of the uplink multiple access manner comprises:

sending an uplink multiple access mode switching request message or a switching command message;

or,

carrying switching indication information of the uplink multiple access mode in a Radio Resource Control (RRC) connection reconfiguration message;

or,

carrying switching indication information of the uplink multiple access mode in an RRC connection reestablishment request message;

or,

carrying switching indication information of the uplink multiple access mode in a message 3 in an initial random access process;

or,

carrying switching indication information of the uplink multiple access mode in an RRC connection establishment request message;

or,

transmitting switching indication information of the uplink multiple access mode by using a media access control layer control protocol data unit (MAC CE PDU);

or,

and transmitting the switching indication information of the uplink multiple access mode by using the physical layer (PHY) signaling.

7. The method of claim 2, wherein the obtaining the feedback information sent by the receiving end comprises:

acquiring the feedback information from an uplink multiple access mode switching response message sent by a receiving end;

or,

acquiring the feedback information from an RRC connection reconfiguration completion message or an RRC connection reestablishment request message sent by a receiving end;

or,

acquiring the feedback information from an RRC connection reestablishment message or an RRC connection reestablishment rejection message or a delay request message sent by a receiving end;

or,

feedback information is obtained from a message 4 of an initial random access process sent by a receiving end;

or,

acquiring the feedback information from an RRC connection establishment message or an RRC connection establishment rejection message sent by a receiving end;

or,

acquiring the feedback information from an uplink multiple access mode switching response MAC CE PDU sent by a receiving end;

or,

and acquiring the feedback information from the physical layer feedback signaling sent by the receiving end.

8. A method for switching an uplink multiple access mode is characterized by comprising the following steps:

receiving switching indication information of an uplink multiple access mode; the switching indication information of the uplink multiple access mode carries indication information for forcibly executing the switching of the uplink multiple access mode, and the indication information for forcibly executing the switching of the uplink multiple access mode is used for indicating a receiving end to forcibly execute switching operation;

9. The method of claim 8, wherein determining that the preset time is reached comprises:

or,

and determining the preset time according to the timing of a set timer, wherein the duration of the timer is a preset value, and the set timer is started when the uplink multiple access mode can be switched.

10. The method according to claim 8 or 9, wherein the handover indication information of the uplink multiple access scheme comprises: a target uplink multiple access scheme, or an identifier of the target uplink multiple access scheme, or a handover indicator of the uplink multiple access scheme.

11. The method of claim 9, wherein if it is determined that the preset time is reached according to the set handover start time information, the set handover start time information is further transmitted to a transmitting end.

12. The method according to claim 8 or 9, characterized in that the method further comprises: and before the preset time is reached, sending physical layer parameters for switching to a target uplink multiple access mode to a sending end.

13. An apparatus for handover processing of an uplink multiple access scheme, comprising:

the message processing module is used for sending or receiving switching indication information of an uplink multiple access mode, wherein the switching indication information is used for indicating a receiving end of the switching indication information to execute switching operation, the switching indication information of the uplink multiple access mode carries indication information for forcibly executing the switching of the uplink multiple access mode, and the indication information for forcibly executing the switching of the uplink multiple access mode is used for indicating the receiving end to forcibly execute the switching operation;

14. The apparatus of claim 13, further comprising a determining module, configured to determine whether an uplink multiple access mode needs to be switched; and the switching execution module is used for executing switching operation when the judgment module confirms that the uplink multiple access mode can be executed and the preset time is up.

15. The apparatus of claim 13 or 14, wherein the handover performing module comprises a first time control module:

the first time control module is used for determining the arrival of the preset time according to the set switching start time information or the switching start time information received by the message processing module, and the switching start time information comprises a system frame number, a subframe number or a combination of the system frame number and the subframe number.

16. The apparatus according to claim 13 or 14, wherein the handover performing module comprises a second time control module, the second time control module comprising:

the timing submodule is used for timing and determining the preset time, and the time length of the timing submodule is a preset value;

the confirming submodule is used for starting the timing submodule when confirming that the uplink multiple access mode needs to be switched; or, the timing submodule is started when the switching indication information of the uplink multiple access mode is sent, and the timing submodule is stopped if the uplink multiple access mode does not need to be switched.

17. The apparatus according to claim 13, further comprising a feedback information processing module, configured to receive feedback information sent by an opposite end device when the message processing module sends the switching indication information of the uplink multiple access mode; when the message processing module receives switching indication information of an uplink multiple access mode, sending feedback information to opposite-end equipment, wherein the feedback information comprises: the judging module is also used for judging whether the uplink multiple access mode needs to be switched according to the feedback information.

18. The apparatus according to claim 13, 14 or 17, wherein the message processing module is further configured to send, before a preset time arrives, a physical layer parameter used by the peer device to switch to the target uplink multiple access mode.