TWI442801B - Uplink synchronization apparatus and the method thereof - Google Patents

Description

Uplink synchronization processing method and device

The present invention relates to a mobile communication device, and more particularly to an uplink synchronization processing method and apparatus.

At present, in the smart mobile terminal products, due to the complexity and variety of functions, the use time of the terminal has become a bottleneck of the mobile phone. In addition to increasing the battery capacity, it is also necessary to seek various technical solutions that can save the terminal power.

The present invention is an uplink synchronization processing method and device for reducing power consumption of a user equipment (User Equipment, hereinafter referred to as UE).

The embodiment of the present invention provides an uplink synchronization processing method, which includes the following steps: the network side determines a synchronization and out-of-synchronization state of a component carrier (hereinafter referred to as CC) on the UE;

The network side instructs the UE to start the CC in the out-of-synchronization state when the CC is in the out-of-synchronization state. After the network side instructs the UE to start the CC in the out-of-synchronization state, the network side further includes: the network side notifying the UE to initiate a random access procedure on the deactivated CC by using the activated CC, or instructing the UE to start the CC to be started.

The network side specifically passes the physical downlink control channel order (Physical Downlink Control Channel Order, hereinafter referred to as PDCCH order), the media access control channel element (MAC CE), and the radio resource control. One of the (Radio Resource Control, hereinafter referred to as RRC) signals, or a combination thereof, notifies the UE to initiate a random access procedure on the deactivated CC through the activated CC or through one of PDCCH order, MAC CE, RRC signals, or a combination thereof Instruct the UE to start the CC to start.

The present invention provides an uplink synchronization processing method, including the following steps: the UE receives a de-boot indication sent by the network side; and the UE starts the CC in the out-of-synchronization state according to the received de-boot indication.

After the UE starts the CC in the out-of-synchronization state, the UE further includes: the UE initiates a random access procedure or initiates a deactivated CC on the deactivated CC; or the UE receives a startup indication sent by the network side, according to the received Start the indication, initiate a random access procedure on the deactivated CC or start the CC to start.

The UE is configured to start the CC in the out-of-synchronization state, and specifically includes: when the CC in the out-of-synchronization state is a separate CC, the CC in the out-of-synchronization state is started; and the CC in the out-of-synchronization state is a CC in the TA group. At the same time, the CC of the TA group to which the CC in the out-of-synchronization state belongs is started; when all the CCs of the UE are in the out-of-synchronization state, all the CCs of the UE are started.

The UE is configured to start the CC in the out-of-synchronization state, and further includes: when the UE starts the CC in the out-of-synchronization state, determining whether the CC in the out-of-synchronization state is the CC to which the Primary Cell belongs; the UE determines to be the primary cell (Primary Cell) When the CC belongs to, the CC in the out-of-synchronization state is started after the startup state of the CC is maintained.

The present invention further provides an uplink synchronization processing method, including the following steps: the UE determines the synchronization and out-of-synchronization state of its own CC; the UE starts the CC in the out-of-synchronization state when the CC is in the out-of-synchronization state.

After the UE is to start the CC in the out-of-synchronization state, the UE further includes: the UE initiates a random access procedure or initiates a deactivated CC on the deactivated CC; or the UE receives a startup indication sent by the network side; The received startup indication initiates a random access procedure on the deactivated CC or initiates a CC to start.

The UE is configured to start the CC in the out-of-synchronization state, and specifically includes: when the CC in the out-of-synchronization state is a separate CC, the CC in the out-of-synchronization state is started; and the CC in the out-of-synchronization state is a CC in the TA group. At the same time, the CC of the TA group to which the CC in the out-of-synchronization state belongs is started; when all the CCs of the UE are in the out-of-synchronization state, all the CCs of the UE are started.

The UE is configured to start the CC in the out-of-synchronization state, and further includes: when the UE starts the CC in the out-of-synchronization state, determining whether the CC in the out-of-synchronization state is the CC to which the Primary Cell belongs; the UE determines that the CC belongs to the Primary Cell. At the same time, the other CCs in the out-of-synchronization state are started after the startup state of the CC is maintained.

The embodiment of the present invention provides a network side device, including: a state determining module, configured to determine a synchronization and out-of-synchronization state of a CC on the UE; and a startup indication module, configured to: when the CC is in an out-of-synchronization state, Instruct the UE to start the CC in the out-of-synchronization state. An activation indication module is configured to notify the UE to initiate a random access procedure on the deactivated CC after the UE is in the out-of-synchronization state, or instruct the UE to start the CC to be started. The startup indication module is specifically configured to notify the UE to initiate a random access procedure on the deactivated CC by using the activated CC by one of the PDCCH order, the MAC CE, the RRC signal, or a combination thereof, or by using a PDCCH order, a MAC CE, an RRC signal. One or a combination thereof instructs the UE to initiate a CC to start.

The embodiment of the present invention provides a user equipment, including: a receiving module, configured to receive a start-up indication sent by a network side; and a de-booting module, configured to perform a step-out according to the received start-up indication The status of the CC.

The receiving module is further configured to receive a startup indication sent by the network side; the user equipment further includes: a first startup module or a second startup module, or both: the first startup module is configured to: According to the received startup instruction, a random access procedure is initiated on the deactivated CC, or a CC that is started to be started is started; and a second startup module is used to restart the CC in the out-of-step state after being started. Initiate a random access procedure, or initiate a CC to start.

The receiving module is specifically configured to receive, by the network side, a startup indication sent by the activated CC through one of a PDCCH order, a MAC CE, an RRC signal, or a combination thereof, where the startup indication is used to instruct the UE to initiate random access on the deactivated CC. A procedure, or a CC used to instruct the UE to initiate a boot.

The de-booting module is further configured to: when the CC in the out-of-synchronization state is a separate CC, to start the CC in the out-of-synchronization state; when the CC in the out-of-synchronization state is a CC of the TA group, to start the The CC of the TA group to which the CC in the out-of-synchronization state belongs; when all the CCs of the UE are in the CC in the out-of-synchronization state, all the CCs of the UE are started.

The de-booting module is further configured to: when the CC in the out-of-synchronization state is started, determine whether the CC in the out-of-synchronization state is the CC to which the Primary Cell belongs; and determine the CC to which the Primary Cell belongs, and maintain the startup of the CC. After the status, the CC in the out-of-synchronization state is started.

The embodiment of the present invention provides a user equipment, including: a state determining module, configured to determine a synchronization and out-of-synchronization state of a CC on the UE; and a de-launching module, when the CC is in an out-of-step state, To start the CC in the out of sync state. The user equipment further includes: a first startup module or a second startup module, or both: the first startup module is configured to initiate random access on the deactivated CC according to the received startup indication. The process, or the CC that is started to be started; the second startup module is configured to initiate a random access process on the deactivated CC or start the CC to be started after the CC in the out-of-synchronization state is started.

The first startup module is further configured to initiate a random access procedure on the deactivated CC according to the received startup indication, or initiate a deactivated CC, where the startup indication is that the network side passes the PDCCH order, the MAC CE, and the RRC signal. One or a combination of the start indication sent by the activated CC.

The de-booting module is specifically configured to: when the CC in the out-of-synchronization state is a separate CC, to start the CC in the out-of-synchronization state; when the CC in the out-of-synchronization state is a CC of the TA group, to start the The CC of the TA group to which the CC in the out-of-synchronization state belongs; when all the CCs of the UE are in the CC in the out-of-synchronization state, all the CCs of the UE are started.

The de-booting module is further configured to: when the CC in the out-of-synchronization state is started, determine whether the CC in the out-of-synchronization state is the CC to which the Primary Cell belongs; and determine to be the CC to which the Primary Cell belongs, and maintain the CC After the startup state, the CC in the out-of-synchronization state is started. The objects of the invention are as follows:

Due to the introduction of multiple carriers, the UE needs to work on multiple carriers at the same time, which also causes the power consumption of the UE to be extremely increased, and when the working CC of the UE is in an out-of-synchronization state, the data that the UE needs to transmit is less. When the situation occurs, if the UE continues to be in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being in the state of being out of the state, the UE is in the state of being in a state of being in a state of a relatively low power. Starting the CC in the out-of-synchronization state, because the unsynchronized CC can be started, thereby achieving the purpose of making the UE more power-saving and prolonging the battery life.

In the Long Term Evolution-Advance (LTE-A) system, Carrier Aggregation (CA) technology is introduced to support higher peak rates. The inventor noticed in the process of the invention that the UE needs to work on multiple carriers at the same time due to the introduction of multiple carriers, and this also causes the power consumption of the UE to be extremely increased. Based on this, the embodiment of the present invention will provide a multi-carrier system. The technical solution for power saving the UE will be described below with reference to the accompanying drawings.

First, the technical features involved in the implementation of the present invention will be described.

First, the introduction of carrier integration technology.

The peak rate of LTE-A is much higher than that of Long Term Evolution (LTE), which requires a downlink rate of 1 Gbps and an uplink rate of 500 Mbps. The LTE-A system requires good compatibility with the LTE system. Scenarios, based on the need to increase peak rates, be compatible with LTE systems, and make full use of spectrum resources, the LTE-A system introduces carrier integration technology.

The carrier integration technology refers to a mode in which multiple CCs are included in uplink and downlink in one cell, instead of only one set of carriers in LTE and the previous wireless communication system. In the carrier integrated system, each component carrier may be continuous or discontinuous. In order to be compatible with the LTE system, the maximum bandwidth of each component carrier is 20 MHz, and the bandwidth between each component carrier may be the same or different.

Second, the following describes the maintenance process of uplink synchronization in LTE.

The uplink synchronization process is used to maintain the uplink synchronization between the terminal and the base station, and is convenient for the terminal to perform uplink data transmission and hybrid automatic repeat request (HARQ) feedback information for downlink data transmission.

FIG. 1 is a schematic diagram of an uplink synchronization maintenance process according to the present invention. As shown in the figure, in an LTE system, an uplink synchronization is maintained by a base station, and when a UE randomly accesses, the base station obtains an initial timing advance according to a preamble. The subsequent uplink synchronization maintenance process is as shown in Figure 1: The base station and the UE respectively maintain a timing advance timer (TA: Timing Advance, timing advance; TA timer, TA timer, hereinafter referred to as TAT), and the base station sends the timing advance to the terminal. Adjust the command (TA command) and start TAT. If the terminal cannot correctly receive the TA command, the base station re-sends the TA command and restarts the TAT after a period of time T1. When the terminal correctly receives the TA command, it starts the TAT of the terminal and sends a confirmation to the base station. (Acknowledgement, hereinafter referred to as ACK) message, the base station restarts the TAT of the base station after receiving the ACK message sent by the terminal. If the base station does not time out for the TAT of a certain UE, the base station considers that the UE is in a synchronized state; as long as the TAT maintained by the UE itself does not time out, the UE also considers that it is synchronized.

If the TAT times out, the UE and the base station automatically release the Sounding Reference signals (SRS) and Dedicated Scheduling Request (D-SR) configurations of the UE on the CC, and Clear the current semi-persistent scheduled uplink and downlink resource configuration and enter the out-of-synchronization state.

Third, CC boot and start instructions.

In the LTE-A protocol discussion, the process of starting and deactivating CC is involved. After the evolved base station (eNB) configures the working CC set for the UE, the amount of data during the service transmission may change, so it may only need to be used. Several working carriers are used for data transmission and scheduling. In this case, the network layer can start some of the unwanted working carriers by a process of starting up. What the inventor noticed during the invention is that starting part of the CC can make the UE more power efficient and extend battery life. When the amount of data that the UE needs to transmit increases, that is, the number of CCs required for data transmission increases, part of the CCs can be started by signal control.

The eNB only schedules the CC in which the UE is in the startup state, and does not perform scheduling and data transmission on the deactivated CC. However, if necessary, the UE will continue to perform corresponding carrier measurement and system information monitoring on the deactivated CC.

Fourth, the description of the special cell (special cell).

After the LTE-A introduces the carrier technology, since the UE can work on multiple CCs at the same time, if these CCs are CCs managed by the community on the network side, the situation of the UE in multiple communities can be seen from the network side. However, due to the need for encryption in the UE connection process and the non-accessive layer (Non Access Stratum, NAS) mobility management, it is necessary to contact a certain cell of the UE. Therefore, the cell is called a special cell.

The inventor has noticed that the current LTE-A protocol does not explicitly describe the processing mechanism after the uplink failure of the multi-carrier system, and at the same time, in the mobile communication system, due to the introduction of multiple carriers, when the working CC of the UE is in an out-of-synchronization state, the UE is characterized. There is currently less data to be transmitted. When this happens, if the UE continues to be in the state of listening and receiving and preparing, then the UE is in a relatively power-consuming state.

In view of the above, in the case that the maintenance process of the synchronization process of the respective uplink CCs in the multi-carrier system may be different, in the embodiment of the present invention, a method for saving power in the out-of-step state of the UE, that is, when the UE is out of synchronization, The CC in the state is preset to enter the de-start state (deep sleep state), and when the CC enters the synchronization state again, the method of re-operation in the startup state is entered, which will be described below.

FIG. 2 is a schematic flowchart of an implementation process of an uplink synchronization processing method according to the present invention. As shown in the figure, the uplink synchronization process may include the following steps: Step 201: Determine a synchronization and an out-of-synchronization state of a CC on the UE; Step 202, in the CC When in the out-of-synchronization state, the CC in the out-of-synchronization state is started.

Further, in consideration of the subsequent startup process, after the UE in the out-of-synchronization state is started, the method further includes: Step 203: Initiating a random access procedure on the deactivated CC, or starting the CC to be started.

Specific embodiments of the respective steps will be described below.

In the implementation of the step 201, the specific implementation manner of determining the synchronization and the out-of-synchronization state of the CC on the UE may refer to the description in the maintenance process of the uplink synchronization in the foregoing LTE, and details are not described herein again.

It can be seen from the above process that both the network side and the UE can learn the synchronization and out-of-synchronization status of the CC on the UE. Therefore, when the CC in the out-of-synchronization state is started in step 202, the UE can be instructed to start by the network side. The CC in the out-of-synchronization state; the UE in the out-of-synchronization state can also be started by the UE.

In the implementation of step 202, the specific implementation manner of deactivating the CC in the out-of-synchronization state can refer to the description of the previous CC startup and de-starting, which will not be described here, and because the unsynchronized CC can be started in time, thereby It also achieves the purpose of making the UE more power-saving and prolonging the battery life, and when the amount of data that the UE needs to transmit increases, that is, the CC of the required data transmission increases, the partial CC can be started by the signal control in step 203. .

The uplink synchronization timing advance (TA) maintenance for the current UE to the working carrier may be UE level, TA group level and CC level. The manner in which the UE's out-of-synchronization CC enters the de-boot state will be respectively on the network side. The implementation is described as an example. At the same time, the CC for maintaining the primary cell, that is, the CC to which the primary cell is associated, may be further considered. When the CC at the CC level, the TA group level, and the UE level is started, The method further includes: determining whether the CC in the out-of-synchronization state is used to maintain the CC in contact with the special cell; determining that the CC is used to maintain the CC in contact with the special cell, the network side is in the startup state after maintaining the startup state of the CC CC in the out of sync state. In a specific implementation, the implementation of the UE actively starting is similar to the implementation, and the implementation may be referred to. Then, when the CC of the CC level, the TA group level, and the UE level are started, the following can be performed:

1. The UE maintains the synchronization out-of-synchronization state of each CC according to the CC level.

When the CC in the out-of-synchronization state is a separate CC, the network side starts the CC in the out-of-synchronization state; in this mode, when a CC enters the out-of-synchronization state, the network side releases the SRS and D- on the CC. The resource such as SR starts the CC at the same time, that is, the relevant processing unit of the CC can enter the power saving mode; if the CC is the CC for maintaining the basic connection, that is, the CC associated with the special cell, the CC is excluded. No need to start.

2. The UE maintains the same out-of-synchronization state of each CC according to the TA group level.

When the CC in the out-of-synchronization state is a CC of the TA group, the network side starts the CC of the TA group to which the CC in the out-of-synchronization state belongs; in this mode, when a certain TA group enters the out-of-synchronization state, the network side releases The resources of the SRS and the D-SR of all the CCs in the TA group simultaneously start all the CCs in the TA group, so that the relevant processing units of the group of CCs enter the power saving mode; if the TA group includes the CCs for maintaining the basic connection, That is, the CC that is associated with the special cell is excluded from the CC and does not need to be started.

3. The UE maintains the same out-of-synchronization state of each CC according to the UE level.

When the CC in the out-of-synchronization state is all CCs of the UE, the network side starts all CCs of the UE.

In this mode, when the UE enters the out-of-synchronization state, the network side releases the resources such as the SRS and the D-SR of the UE in all the CCs, and simultaneously starts all the CCs except the special cell, so that the relevant processing units of the CCs enter the province. Electrical mode; the CC used to maintain the basic connection with the special cell, without going to start.

The following describes the startup of the recovery CC.

In the implementation of step 203, after the CC in the out-of-synchronization state is started, the random access procedure may be initiated on the deactivated CC, or the deactivated CC may be directly started.

The initiated implementation may also be initiated by the network side, or may be initiated by the UE itself. In a specific implementation, the network side may notify the UE to initiate a random access procedure on the deactivated CC by using the activated CC, or the network side instructs the UE to initiate the deactivated CC, or the UE initiates random access on the deactivated CC. Process; or the UE starts the CC to start.

In the implementation, any technical means capable of implementing the CC can be used. The following describes the initiation of the random access procedure by using the network side as an example.

The network side may notify the UE to initiate a random access procedure on the deactivated CC through the activated CC through one of the PDCCH order, the MAC CE, the RRC signal, or a combination thereof. At this time, the network side may directly notify the UE to perform a random access procedure on one or more CCs that are to be started after the out-of-synchronization by means of the PDCCH order or the MAC CE, and then the UE wakes up the one or more. The multiple CCs perform random access for synchronization, thereby starting the CC; if the UE performs a random access procedure on the CC, the CC re-enters the startup state.

In the implementation, the role of the UE in initiating the random access procedure on the deactivated CC is also the same as the network side instructing to initiate the random access procedure.

In an implementation, the network side may also instruct the UE to start the deactivated CC by one of the PDCCH order, the MAC CE, the RRC signal, or a combination thereof.

The uplink synchronization timing advance (TA) for the current UE to the working carrier may be UE level, TA group level and CC level. The UE's CC in the out-of-step to start state is activated. The road side is described as an example. Here, since the special cell is not activated, the CC described by the subordinate does not include a special CC. In the specific implementation, the startup process initiated by the UE is similar, and the reference implementation may be used.

1. The UE maintains the synchronization out-of-synchronization state of each CC according to the CC level.

In this manner, the network side directly informs the UE to perform a random access procedure on one or more CCs that are started after the out-of-synchronization by means of the PDCCH order or the MAC CE, and then the UE wakes up the one or more CCs. The random access is performed for synchronization, thereby starting the CC; if the UE performs a random access procedure on the CC, the CC re-enters the startup state.

2. The UE maintains the same out-of-synchronization state of each CC according to the TA group level.

In this manner, the network side directly informs the UE to perform a random access procedure on one or more CCs that are started after the out-of-synchronization by means of the PDCCH order or the MAC CE, and then the UE wakes up the one or more CCs. The random access is performed for synchronization, so that all the CCs in the TA group to which the CC belongs are started. If the UE performs a random access procedure on a certain CC in the TA group, all the CCs in the TA group re-enter the startup state.

3. The UE maintains the same out-of-synchronization state of each CC according to the UE level.

In this mode, the network side directly informs the UE to synchronize through the activated CC (ie, the special cell) in the manner of the PDCCH order or the MAC CE, thereby waking up all the CCs to enter the startup state. If the UE initiates a random access procedure, all CCs re-enter the startup state.

It can be seen from the foregoing embodiment that, in the implementation, the synchronization and the out-of-synchronization state of the CC may be determined by the network side to be initiated by the network side, or may be initiated by the UE after determining the synchronization and out-of-synchronization state of the CC. After the CC is started, the CC after startup is a relatively independent process, which can also be initiated after the network side indicates, or can be started by the UE itself.

Then, different technical solutions can be obtained by performing a combination of starting and starting two processes by different entities or the same entity, for example:

1. The network side indicates to start, and the network side indicates to start;

2. The network side indicates to start, and the UE starts;

3. The UE goes to start, and the network side indicates to start;

4. The UE starts to start, and the UE starts;

In the specific implementation, various possible combinations can be performed as needed, as long as the out-of-step state of the CC can be utilized, combined with the de-starting process, and the effect of obtaining power saving is feasible, which is also easily known to those skilled in the art.

Based on the same inventive concept, the network side device is also provided in the embodiment of the present invention. The principle of solving the problem is similar to the uplink synchronization processing method. Therefore, the implementation of the device can refer to the implementation of the method. .

FIG. 3 is a schematic structural diagram of a network side device according to the present invention. As shown in the figure, the network side device may include: a state determining module 301, configured to determine a synchronization and out-of-synchronization state of a CC on the UE; For instructing the UE to start the CC in the out-of-synchronization state when the CC is in the out-of-synchronization state.

The network side device may further include: a startup indication module 303, configured to notify the UE to initiate a random access procedure on the deactivated CC by using the activated CC, or instruct the UE to start the CC in the out-of-synchronization state. The UE starts the CC to start.

The startup indication module may be further configured to notify the UE to initiate a random access procedure on the deactivated CC by using the activated CC by one of the PDCCH order, the MAC CE, the RRC signal, or a combination thereof, or by using the PDCCH order, the MAC CE One of the RRC signals or a combination thereof indicates that the UE initiates the CC to be started.

FIG. 4 is a schematic structural diagram of a user equipment according to the present invention. As shown in the figure, the UE may include: a receiving module 401, configured to receive a deactivation indication sent by the network side; and a deactivation module 402, configured to receive Go to the boot command to start the CC in the out of sync state.

The receiving module 401 is further configured to receive the startup indication sent by the network side, where the UE may further include: the first startup module 403 or the second startup module 404, or both: the first startup module And, according to the received startup indication, initiate a random access procedure on the deactivated CC, or start a CC to be started; and the second startup module is configured to start after starting the CC in the out-of-synchronization state. The random access procedure is initiated on the CC, or the CC that is started to start is started.

The receiving module may be further configured to receive, by the network side, a startup indication sent by the activated CC through one of a PDCCH order, a MAC CE, an RRC signal, or a combination thereof, where the startup indication is used to instruct the UE to initiate a randomization on the deactivated CC. An access procedure, or a CC used to instruct the UE to initiate booting.

The de-boot module can be further used to start the CC in the out-of-synchronization state when the CC in the out-of-synchronization state is a separate CC, and to start when the CC in the out-of-synchronization state is a CC of the TA group. The CC of the TA group in the out-of-synchronization state; when all the CCs of the UE are in the out-of-synchronization state, all CCs of the UE are started.

The de-boot module can be further used to start the CC in the out-of-synchronization state, determine whether the CC in the out-of-synchronization state is used to maintain the CC associated with the special cell, and determine that the CC is used to maintain the contact with the special cell. At the same time, the CC in the out-of-synchronization state is started after the startup state of the CC is maintained.

FIG. 5 is a schematic structural diagram of the user equipment in the present invention. As shown in the figure, the UE may include: a state determining module 501, configured to determine a synchronization and out-of-synchronization state of the CC on the UE; When the CC is in an out-of-synchronization state, the CC in the out-of-synchronization state is started.

The UE may further include: a first startup module 503 or a second startup module 504, or both: the first startup module is configured to be used on the deactivated CC according to the received startup indication. Initiating a random access process, or starting a CC to start; the second startup module is configured to initiate a random access procedure on the deactivated CC after starting the CC in the out-of-synchronization state, or start the CC to be started. .

The first startup module may be further configured to initiate a random access procedure on the deactivated CC according to the received startup indication, or initiate a deactivated CC, where the startup indication is that the network side passes the PDCCH order, the MAC CE, and the RRC. A start indication sent by one of the signals or a combination thereof through the activated CC.

The de-boot module can be further used to start the CC in the out-of-synchronization state when the CC in the out-of-synchronization state is a separate CC, and to start when the CC in the out-of-synchronization state is a CC of the TA group. The CC of the TA group in the out-of-synchronization state; when all the CCs of the UE are in the out-of-synchronization state, all CCs of the UE are started.

The de-boot module can be further used to start the CC in the out-of-synchronization state, determine whether the CC in the out-of-synchronization state is used to maintain the CC associated with the special cell, and determine that the CC is used to maintain the contact with the special cell. At the same time, the CC in the out-of-synchronization state is started after the startup state of the CC is maintained.

For the convenience of description, each part of the above device is divided into various modules or units by function; of course, in the implementation of the invention, the functions of each module or unit can be implemented in the same software or hardware. .

It can be seen from the above embodiments that, in the technical solution provided by the embodiment of the present invention, in the multi-carrier system, the network detects that the out-of-step state carrier in the UE working carrier automatically enters the de-start state, and automatically restarts the startup state after re-synchronization. Thereby achieving the purpose of power saving.

In the LTE-A system, carrier aggregation technology is introduced to support higher peak rates. However, due to the introduction of multiple carriers, the UE needs to work on multiple carriers at the same time, which also makes the power consumption of the UE extremely increased.

Since there is no explicit description of the processing mechanism after the uplink failure of the multi-carrier system in the current LTE-A protocol. At the same time, in the mobile communication system, due to the introduction of multiple carriers, when the working CC of the UE is in an out-of-synchronization state, the data indicating that the UE currently needs to transmit is less. When this occurs, if the UE continues to be in the state of monitoring and receiving and transmitting. Then, it is in a state of relatively high power for the UE.

In the embodiment of the present invention, since the CC in the out-of-synchronization state is started when the CC is in the out-of-step state, the unsynchronized CC can be started in time, thereby achieving more power saving and prolonging the battery life of the UE. purpose.

Embodiments of the invention may be provided as a method, system, or computer program product; thus, the invention may take the form of a fully hardware embodiment, a fully software embodiment, or an embodiment combining soft and hardware aspects; The invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk memory, CD-ROM, optical memory, etc.) containing computer usable code.

The present invention has been described with reference to a flowchart or block diagram of a method, apparatus (system), and computer program product according to an embodiment of the present invention. It should be understood that each of the flow charts or block diagrams and the flow of the flowcharts or block diagrams can be implemented by computer program instructions to provide these computer program instructions to a general purpose computer, a special purpose computer, an embedded processor or other programmable Designing a processor of the data processing device to produce a machine such that instructions executed by a processor of a computer or other programmable data processing device are generated for implementing one or more of a flow or a flow or block diagram of the flowchart The device of the function specified in the box.

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

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

The detailed description of the preferred embodiments of the present invention is intended to be limited to the scope of the invention, and is not intended to limit the scope of the invention. The patent scope of this case.

In summary, the technical features disclosed in this case have fully complied with the statutory invention patent requirements of novelty and progressiveness. If you apply in accordance with the law, you are requested to approve the application for this invention patent to encourage invention.

300. . . Network side device

301. . . State determination module

302. . . Go to start indicator module

303. . . Start indicator module

400. . . User equipment

401. . . Receiving module

402. . . Go to start module

403. . . First starter module

404. . . Second starter module

500. . . User equipment

501. . . State determination module

502. . . Go to start module

503. . . First starter module

504. . . Second starter module

FIG. 1 is a schematic diagram of an uplink synchronization maintenance process of the present invention; FIG.

2 is a schematic flowchart of an implementation process of an uplink synchronization processing method according to the present invention;

FIG. 3 is a schematic structural diagram of a network side device according to the present invention;

Figure 4 is a schematic structural view of a user equipment of the present invention;

FIG. 5 is a schematic structural diagram of a user equipment according to the present invention.

Claims (22)

An uplink synchronization processing method includes the following steps: the network side determines a synchronization and an out-of-synchronization state of a component carrier on a user equipment; and the network side instructs the user equipment to start in an out-of-synchronization state when the component carrier is in an out-of-synchronization state Component carrier. The uplink synchronization processing method of claim 1, wherein the network side notifies the user equipment to start by using the activated component carrier after instructing the user equipment to start the component carrier in the out-of-synchronization state. A random access procedure is initiated on the component carrier, or a component carrier instructing the user equipment to initiate the deactivation. The uplink synchronization processing method of claim 2, wherein the network side notifies the user through the activated component carrier by using one of a physical downlink control channel command, a media access control unit, a radio resource control signal, or a combination thereof. The device initiates a random access procedure on the component carrier that is to be started, or instructs the user equipment to start the component carrier to be started by one of the physical downlink control channel command, the medium access control unit, the radio resource control signal, or a combination thereof. An uplink synchronization processing method includes the following steps: the user equipment receives a de-boot indication sent by the network side; and the user equipment starts the component carrier in the out-of-synchronization state according to the received de-start indication. The uplink synchronization processing method of claim 4, wherein the user equipment, after deactivating the component carrier in the out-of-synchronization state, further comprises: the user equipment initiating random access on the deactivated component carrier The component or the component carrier that is started to be activated; or the user equipment receives the startup indication sent by the network side, and according to the received startup indication, initiates a random access procedure on the component carrier that is to be started, or starts the component carrier that is to be started. The uplink synchronization processing method of claim 4, wherein the user equipment starts the component carrier in the out-of-synchronization state, including: when the component carrier in the out-of-synchronization state is a separate component carrier. Deactivating the component carrier in the out-of-synchronization state; when the component carrier in the out-of-synchronization state is a component carrier of the timing advance group, starting the component carrier of the timing advance group to which the component carrier in the out-of-synchronization state belongs; When the component carrier of the out-of-synchronization state is all component carriers of the user equipment, all component carriers of the user equipment are activated. The uplink synchronization processing method of claim 6, wherein the user equipment to start the component carrier in the out-of-synchronization state further comprises: when the user equipment starts the component carrier in the out-of-synchronization state, determining to be in the Whether the component carrier in the out-of-synchronization state is used for the component carrier to which the primary cell belongs; when the user equipment determines that the primary cell belongs to the component carrier, the component carrier in the out-of-synchronization state is started after the startup state of the component carrier is maintained. An uplink synchronization processing method includes the following steps: a user equipment determines a synchronization and an out-of-synchronization state of its own component carrier; and the user equipment starts a component carrier in an out-of-synchronization state when the component carrier is in an out-of-synchronization state. The uplink synchronization processing method of claim 8, wherein the user equipment, after deactivating the component carrier in the out-of-synchronization state, further comprises: the user equipment initiating random access on the deactivated component carrier The process or the component carrier that is started to be activated; or the user equipment receives the startup indication sent by the network side; the user equipment initiates a random access procedure on the component carrier that is to be started according to the received startup indication, or starts to start. Component carrier. The uplink synchronization processing method of claim 8 or 9, wherein the user equipment starts the component carrier in the out-of-synchronization state, including: when the component carrier in the out-of-synchronization state is a separate component carrier Deactivating the component carrier in the out-of-synchronization state; when the component carrier in the out-of-synchronization state is a component carrier of the timing advance group, starting the component carrier of the timing advance group to which the component carrier in the out-of-synchronization state belongs; When the component carrier of the out-of-synchronization state is all component carriers of the user equipment, all component carriers of the user equipment are activated. The uplink synchronization processing method of claim 10, wherein the user equipment to start the component carrier in the out-of-synchronization state further comprises: when the user equipment starts the component carrier in the out-of-synchronization state, determining that the user equipment is in the out-of-step state The component carrier in the out-of-synchronization state is the component carrier to which the primary cell belongs; when the user equipment determines that the primary cell belongs to the component carrier, the other component carriers in the out-of-synchronization state are started after the activation state of the component carrier is maintained. An uplink synchronization processing device, comprising: a network side device, the network device comprising: a state determining module, configured to determine a synchronization and an out-of-synchronization state of component carriers on the user equipment; When the component carrier is in an out-of-synchronization state, the user equipment is instructed to start the component carrier in the out-of-synchronization state. The uplink synchronization processing device of claim 12, having a network side device, the network side device further comprising: an activation indication module, configured to start after starting to activate the component carrier in the out-of-synchronization state The component carrier informs the user equipment to initiate a random access procedure on the component carrier that is to be started, or instructs the user equipment to start the component carrier to be started. The uplink synchronization processing device of claim 13 has a network side device, wherein the startup indication module is specifically configured to use a physical downlink control channel command, a media access control unit, and a radio resource. One or a combination of the control signal signals informs the user equipment to initiate a random access procedure on the deactivated component carrier through the activated component carrier, or through a physical downlink control channel command, a media access control unit, and a radio resource control signal signal. One or a combination thereof indicates a component carrier that the user equipment initiates to initiate. An uplink synchronization processing device has a user equipment, the user equipment includes: a receiving module, configured to receive a start-up indication sent by the network side; and a de-starting module, configured to go according to the received start-up instruction Start the component carrier in the out-of-synchronization state. The uplink synchronization processing device of claim 15 has a user equipment, wherein the receiving module is further configured to receive a startup indication sent by the network side; the user equipment further includes: a first startup module or The second startup module, or both, includes: a first startup module, configured to initiate a random access procedure on the deactivated component carrier, or initiate a component carrier to be started according to the received startup indication; The startup module is configured to initiate a random access procedure on the deactivated component carrier or start the component carrier to be started after deactivating the component carrier in the out-of-synchronization state. The uplink synchronization processing device of claim 15 or 16, wherein the deactivation module is further configured to: when the component carrier in the out-of-synchronization state is a separate component carrier, go to The component carrier in the out-of-synchronization state is activated; when the component carrier in the out-of-synchronization state is a component carrier of the timing advance group, the component carrier of the timing advance group to which the component carrier in the out-of-synchronization state belongs is activated; When the component carrier of the state is all component carriers of the user equipment, all component carriers of the user equipment are activated. The uplink synchronization processing device of claim 17 has a user equipment, wherein the deactivation module is further configured to: when the component carrier in the out-of-synchronization state is activated, determine that the component carrier in the out-of-synchronization state is It is not the component carrier to which the primary battery belongs; when it is determined that the component carrier belongs to the primary battery, the component carrier in the out-of-synchronization state is started after the start state of the component carrier is maintained. An uplink synchronization processing device, comprising: a user equipment, the user equipment comprising: a state determination module, configured to determine a synchronization and out-of-synchronization state of component carriers on the user equipment; When the component carrier is in an out-of-synchronization state, the component carrier in the out-of-synchronization state is started. The uplink synchronization processing device of claim 19, wherein the user equipment further comprises: a first activation module or a second activation module, or both: first The startup module is configured to initiate a random access process on the component carrier that is to be started according to the received startup indication, or start a component carrier that is to be started; and the second startup module is configured to start the component in the out-of-synchronization state. After the carrier, a random access procedure is initiated on the component carrier that is to be started, or a component carrier that is to be started is started. The uplink synchronization processing device of claim 19 or 20, wherein the user equipment deactivation module is specifically configured to use a component carrier in an out-of-synchronization state as a separate component carrier. When the component carrier in the out-of-synchronization state is a component carrier of the timing advance group, the component carrier of the timing advance group to which the component carrier in the out-of-synchronization state belongs is activated; When the component carrier in the out-of-synchronization state is all component carriers of the user equipment, all component carriers of the user equipment are activated. The uplink synchronization processing device of claim 21, wherein the user equipment deactivation module is further configured to: when the component carrier in the out-of-synchronization state is activated, determine that the component is in an out-of-synchronization state. The component carrier is the component carrier to which the primary cell belongs; when it is determined to be the component carrier to which the primary cell belongs, the component carrier in the out-of-synchronization state is started after the startup state of the component carrier is maintained.