CN104039007A

CN104039007A - Up-link synchronization processing method, user equipment and base station

Info

Publication number: CN104039007A
Application number: CN201410264548.7A
Authority: CN
Inventors: 常俊仁; 李亚娟; 宋巍巍; 张亮亮; 权威; 覃忠宾; 张戬
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2009-09-15
Filing date: 2009-09-15
Publication date: 2014-09-10
Anticipated expiration: 2029-09-15
Also published as: CN104039007B

Abstract

The invention discloses an up-link synchronization processing method, user equipment and a base station. The up-link synchronization processing method includes that receiving component carrier (CC) up-link synchronization indication information from the base station, wherein the up-link synchronization indication information carries mark information of one or more new component carriers (CC); when the new component carrier or all or part of the new component carriers (CC) corresponding to the mark information need to perform the up-link synchronization, sending a synchronization signaling to the base station; receiving timing advance (TA) regulating information which is sent from the base station according to the synchronization signaling, and using a TA value in the TA regulating information for the component carriers (CC) which need to perform the up-link synchronization. When the base station needs to configure the new component carrier (CC) for user equipment or the using component carrier or some using component carriers (CC) of the user equipment need to be replaced by the new component carriers (CC), the user equipment can use the TA value to carry out up-link synchronization on the new component carriers (CC).

Description

Uplink synchronization processing method, subscriber equipment and base station

Technical field

The present invention relates to the communications field, relate in particular to a kind of uplink synchronization processing method, subscriber equipment and base station.

Background technology

Senior Long Term Evolution (Long Term Evolved-Advanced, hereinafter to be referred as: LTE-A) system need to be supported the bandwidth wider than LTE system, therefore multiple carrier waves can be carried out to polymerization.So-called carrier aggregation be exactly by multiple component carriers (Component Carrier, hereinafter to be referred as: CC) pool the carrier wave of a bandwidth higher than LTE system bandwidth, to support high data rate.

In the prior art, when subscriber equipment (User Equipment, hereinafter to be referred as: while UE) using multiple CC, under some scene, the Timing Advance of each CC (Time Advanced, hereinafter to be referred as: TA value) is different.For example, in the time that base station has configured different CC on different repeater (Repeater), or the CC of different frequency has been while having passed through different scattering paths, and the TA value of different CC is not identical.Again for example, when UE uses two different CC to communicate by letter with two non-access points that cooperate, the TA value of these two CC is different.

Therefore, in the case of UE use the TA value of multiple CC different, if base station need to configure new CC for UE, or certain or some CC of using of UE CC that need to newly be configured is while replacing, and how UE reaches uplink synchronous with the CC of new configuration becomes problem demanding prompt solution.

Summary of the invention

The embodiment of the present invention provides a kind of uplink synchronization processing method, subscriber equipment and base station, how reaches the problem of uplink synchronous to solve UE with the CC of new configuration.

For achieving the above object, the embodiment of the present invention provides a kind of uplink synchronization processing method, comprising:

Receive the uplink synchronous Indication message that base station sends, in described uplink synchronous Indication message, carry the identification information of one or more component carrier CC of new configuration;

When all or part of CC in a CC or the multiple CC of knowing the new configuration corresponding with described identification information need to carry out uplink synchronous, synchronous signaling is sent to base station; And

Receive the timing advance TA adjustment message that described base station sends according to described synchronous signaling, and the TA value of carrying in described TA adjustment message is applied on the CC that need to carry out uplink synchronous.

The embodiment of the present invention provides a kind of uplink synchronization processing method, comprising:

Send uplink synchronous Indication message to user equipment (UE), in described uplink synchronous Indication message, carry the identification information of one or more component carrier CC of new configuration;

Receive the synchronous signaling that described UE sends;

Send timing advance TA according to described synchronous signaling to described UE and adjust message, be applied on the CC that need to carry out uplink synchronous to indicate described UE that described TA is adjusted to the TA value of carrying in message.

Correspondingly, the embodiment of the present invention provides a kind of subscriber equipment, comprising:

The first receiver module, for receiving the uplink synchronous Indication message of base station transmission, carries the identification information of one or more component carrier CC of new configuration in uplink synchronous Indication message;

The first sending module, in the time knowing that a CC of the new configuration corresponding with described identification information or all or part of CC of multiple CC need to carry out uplink synchronous, sends to base station by synchronous signaling;

The first processing module, for receiving described base station at the first receiver module according to after the timing advance TA adjustment message of described synchronous signaling transmission, adjusts the TA value of carrying in message by described TA and is applied on the CC that need to carry out uplink synchronous.

The embodiment of the present invention provides a kind of base station, comprising:

The second sending module, for sending uplink synchronous Indication message to user equipment (UE), carries the identification information of one or more component carrier CC of new configuration in described uplink synchronous Indication message;

The second receiver module, the synchronous signaling sending for receiving described UE;

Described the second sending module is also adjusted message for sending timing advance TA according to described synchronous signaling to described UE, is applied on the CC that need to carry out uplink synchronous to indicate described UE that described TA is adjusted to the TA value of carrying in message.

The above embodiment of the present invention, need to configure new CC for UE in base station, or when the CC that certain that UE is using or some CC need to newly be configured replaces, UE can use this TA value of obtaining and the CC of new configuration to reach uplink synchronous, and, only trigger UE by uplink synchronous Indication message in this process and carry out uplink synchronous, thereby save downlink radio resource, in the time that UE need to carry out uplink synchronous, can be by send dedicated preamble to base station, the CC that can obtain from base station new configuration needs the TA value using, thereby improve uplink synchronous speed.

The embodiment of the present invention provides another kind of uplink synchronization processing method, comprising:

If know that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous, wherein, described CC grouping is the CC group of sharing one or more CC compositions of same timing advance TA value.

Send CC grouping information by broadcast mode or dedicated signaling to described UE, the CC that described CC grouping information is used to indicate in same CC grouping shares a timing advance TA value;

Send uplink synchronous Indication message to user equipment (UE), in described uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, so that described UE is in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous.

The 3rd receiver module, for receiving the uplink synchronous Indication message of base station transmission, carries the identification information of one or more component carrier CC of new configuration in described uplink synchronous Indication message;

The 3rd processing module, for in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC and divide into groups, on one or more CC of described new configuration, carry out uplink synchronous, wherein, described CC grouping is the CC group of sharing one or more CC compositions of same TA value.

The 3rd sending module, for sending CC grouping information by broadcast mode or dedicated signaling to described UE, the CC that described CC grouping information is used to indicate in same CC grouping shares a timing advance TA value;

The 4th sending module, for sending uplink synchronous Indication message to UE, in described uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, so that described UE is in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous.

The above embodiment of the present invention, in the situation that thering is CC grouping, can make UE know according to the identification information of CC grouping information and new configuration whether the CC of new configuration belongs to certain CC grouping, in the time belonging to certain CC grouping, directly use this CC corresponding TA that divides into groups to realize uplink synchronous, in the time not belonging to certain CC grouping, can initiate to base station uplink synchronous operation, thereby obtain the TA value of the CC use of new configuration from base station.Therefore, need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make UE and the CC of new configuration reach uplink synchronous.

The embodiment of the present invention also provides a kind of uplink synchronization processing method, comprising:

Obtain the component carrier CC or right descending timing value T1, uplink timing advance TA1 and new CC or the right descending timing value T2 of CC configuring of CC that are using;

Application of formula (2) is calculated the uplink timing advance TA2 of the CC that obtains new configuration,

TA2＝TA1+2×(T2－T1) (2)；

The TA2 obtaining is applied on the CC of new configuration.

In the above embodiment of the present invention, UE can be according to the TA value of the CC being configured, adjust voluntarily the TA situation of the CC of new configuration, no matter whether multiple CC shares TA, UE all can be according to descending Timing Advance and the uplink timing advance of the CC being configured, and the descending Timing Advance of the CC of new configuration, the uplink timing advance of the CC that calculating makes new advances configures.The present embodiment need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Brief description of the drawings

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, to the accompanying drawing of required use in embodiment be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.

Fig. 1 is the flow chart of uplink synchronization processing method embodiment mono-of the present invention;

Fig. 2 is the flow chart of uplink synchronization processing method embodiment bis-of the present invention;

Fig. 3 is the flow chart of uplink synchronization processing method embodiment tri-of the present invention;

Fig. 4 is a kind of structural representation that in uplink synchronization processing method embodiment tri-of the present invention, TA adjusts order;

Fig. 5 is the flow chart of uplink synchronization processing method embodiment tetra-of the present invention;

Fig. 6 is the flow chart of uplink synchronization processing method embodiment five of the present invention;

Fig. 7 is the flow chart of uplink synchronization processing method embodiment six of the present invention;

Fig. 8 is the flow chart of uplink synchronization processing method embodiment seven of the present invention;

Fig. 9 is the flow chart of uplink synchronization processing method embodiment eight of the present invention;

Figure 10 is the flow chart of uplink synchronization processing method embodiment nine of the present invention

Figure 11 is the flow chart of uplink synchronization processing method embodiment ten of the present invention;

Figure 12 is the structural representation of subscriber equipment embodiment mono-of the present invention;

Figure 13 is the structural representation of base station embodiment mono-of the present invention;

Figure 14 is the structural representation of subscriber equipment embodiment bis-of the present invention;

Figure 15 is the structural representation of base station embodiment bis-of the present invention.

Embodiment

Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.

Fig. 1 is the flow chart of uplink synchronization processing method embodiment mono-of the present invention, and as shown in Figure 1, the method for the present embodiment can comprise:

The uplink synchronous Indication message that step 101, reception base station send;

In this uplink synchronous Indication message, carry the identification information of one or more CC of new configuration.

For instance, this uplink synchronous Indication message can be CC reconfiguration message or (Physics Downlink Control Channel, hereinafter to be referred as: PDCCH);

Wherein, in uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, this identification information is for base station, the for example new configuration of eNodeB instruction UE be which or which CC, or, for FDD system, in the time that eNodeB carries out reshuffling of CC in pairs, this CC identification information also can represent a pair of or multipair up-downgoing CC, what is called is carried out reshuffling of CC in pairs, refer to an eNodeB notice up CC of configuration and a descending CC, so up CC and a descending CC form a CC couple, in this case, the identification information of CC can be the identification information that CC is right, in other embodiment about the meaning of CC identification information and identical in addition, therefore no longer specify in other parts of the embodiment of the present invention.

It should be noted that, in this CC reconfiguration message, can also carry the detailed configuration information of the CC of new configuration.

In the present embodiment, this uplink synchronous Indication message can be used as independently Radio Resource control (Radio Resource Control, hereinafter to be referred as: RRC) message or media access control protocol data unit (Medium Access Control Protocol Data Unit, hereinafter to be referred as: MAC PDU) send, or be nested in RRC and connect in reconfiguration message and send.

When step 102, all or part of CC in a CC or the multiple CC of knowing new configuration according to described uplink synchronous Indication message need to carry out uplink synchronous, synchronous signaling is sent to base station;

UE is receiving this uplink synchronous Indication message, for example, after CC reconfiguration message or PDCCH, that both can know new configuration is which or which CC, also can know whether need with a CC or multiple CC of new configuration in all or part of CC carry out uplink synchronous.

Described synchronous signaling is a synchronizing sequence.For instance, the synchronous signaling of the present embodiment can be dedicated preamble (preamble) or visit logical reference signal (Sounding reference signal, hereinafter to be referred as: Sounding RS).In the situation that needs UE carries out uplink synchronous, in this CC reconfiguration message or PDCCH, can be included as the dedicated preamble that UE distributes, the mode that this dedicated preamble indicates UE whether need to carry out uplink synchronous on one or more CC of new configuration in addition can be:

1, explicit instruction: utilize special bit indication information instruction UE whether need to carry out uplink synchronous on all or part of CC in a CC or multiple CC in CC reconfiguration message or PDCCH;

2, implicit expression instruction: the assignment information that comprises dedicated preamble in CC reconfiguration message or PDCCH, representing needs to carry out uplink synchronous on all or part of CC of UE in a CC or multiple CC, there is no the assignment information of dedicated preamble, represent that UE can not carry out uplink synchronous; Be that UE can judge CC reconfiguration message or PDCCH, if comprise dedicated preamble, use this preamble to carry out uplink synchronous.

Therefore, described in step 102, know that according to described uplink synchronous Indication message all or part of CC in a CC or multiple CC of new configuration need to carry out uplink synchronous, can comprise:

Know and need on all or part of CC in a CC or multiple CC of new configuration, carry out uplink synchronous according to being used to indicate the bit indication information of carrying out uplink synchronous on all or part of CC in a CC or multiple CC of new configuration whether in described uplink synchronous Indication message; Or

Know and need on all or part of CC in a CC or multiple CC of new configuration, carry out uplink synchronous according to the assignment information that comprises dedicated preamble in described uplink synchronous Indication message.

Therefore, when UE need to carry out uplink synchronous according to uplink synchronous Indication message judgement, can from this uplink synchronous Indication message, obtain corresponding dedicated preamble, in the time carrying out uplink synchronous, this dedicated preamble can be sent to base station, to ask base station to indicate operable TA value according to this dedicated preamble.

Step 103, receive the TA that described base station sends according to described synchronous signaling and adjust message, and described TA is adjusted to the TA value of carrying in message be applied on the CC that need to carry out uplink synchronous.

Base station is receiving after the dedicated preamble of UE transmission, can send TA to UE and adjust message, and this TA adjusts in message can carry the TA value on the CC that need to carry out uplink synchronous that need to be applied in new configuration.

In the time of specific implementation, UE can application of formula (1) calculate the TA that obtains the upper required use of CC that need to carry out uplink synchronous _new, and by this TA _newbe applied in described CC upper,

TA _new＝TA _reference+(TA-M)×Ts (1)

Wherein, TA _referencerepresent the TA value on TA value on the current CC using, reference value that base station sends in uplink synchronous Indication message or the CC in the time setting up for the first time RRC and connect, or TA value on main carrier (anchor CC); M is default empirical value; T _s=1/ (15000 × 2048).

So far, UE can use this TA on the CC that need to carry out uplink synchronous _newthereby, need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, and UE can use this TA _newreach uplink synchronous with the CC of new configuration, and, only trigger UE by uplink synchronous Indication message in this process and carry out uplink synchronous, thereby save downlink radio resource, in the time that UE need to carry out uplink synchronous, can for example, by send synchronous signaling, dedicated preamble to base station, the CC that can obtain from base station new configuration needs the TA value using, thereby has improved uplink synchronous speed.

In another embodiment of uplink synchronization processing method of the present invention, while not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, the TA value of indicating in described uplink synchronous Indication message is applied on the CC that does not need to carry out uplink synchronous of new configuration; Or while not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, upper the current CC using unique TA value is applied in to all or part of CC that does not need to carry out uplink synchronous in one or more CC of new configuration.

On all or part of CC in a described CC or the multiple CC of knowing new configuration according to described uplink synchronous Indication message, do not need to carry out uplink synchronous, can comprise:

In the time that the TA value of any one CC in CC of new configuration and one or more CC of current use is identical, the TA value of described instruction comprises: the TA value that needs adjustment on a CC of new configuration, or the identification information of the current CC using, the identification information of described CC represents to need on the CC of new configuration the TA value of the TA value that the uses CC corresponding with the identification information of described CC identical;

In the time that multiple CC of new configuration are identical with the TA value of the CC of current use, the TA value of described instruction comprises: with the CC of multiple new configurations respectively corresponding TA value, distinguish the numbering of corresponding TA value with the CC of multiple new configurations, or the numbering of the CC of current use, the TA value of the TA value of the required use of CC of the new configuration CC corresponding with the numbering of described CC is identical.

Specifically, if while not needing UE to carry out uplink synchronous, operable TA value can be indicated for UE in base station, concrete mode can be:

Only be configured to use a CC or when the TA value of multiple CC of using is all identical, indicate UE whether can use the current TA value using when UE is current;

Or be configured to use multiple CC when UE is current, and UE is being while using multiple different TA value, the TA value of indicating UE to use on the CC newly configuring.In this case, the TA value notice UE that base station both can directly need to have been used UE, also the current UE TA value using can be numbered, the numbering notice UE of the TA value that need to use on the CC of new configuration, or can also be by the numbering notice UE of certain CC using, UE receives the number information of this CC, represents that the CC of new configuration can use the TA value on the CC corresponding with this numbering.

Also have a kind of situation to be, while not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, by upper the current CC using unique TA value, be applied in one or more CC of new configuration and do not need to carry out on the CC of uplink synchronous.Specifically, UE and base station can know that the TA value of the current all CC that using of UE is all identical in advance, all CC use unique TA value, now, base station need not be UE instruction TA value specially, after UE receives uplink synchronous Indication message, know while not needing to carry out uplink synchronous on all or part of CC in a CC or multiple CC of new configuration, can directly unique TA value of the current CC using be applied on the CC that does not need to carry out uplink synchronous of new configuration.

Therefore, when UE is known while not needing to carry out uplink synchronous according to the uplink synchronous Indication message receiving, get final product the CC that does not need to carry out uplink synchronous in the CC that directly the TA value of indicating in this uplink synchronous Indication message is applied in to new configuration, or directly unique TA value of the current CC using is applied on the CC that does not need to carry out uplink synchronous of new configuration, thereby makes UE also can reach uplink synchronous with the CC of new configuration in the time not needing to carry out uplink synchronous.

Fig. 2 is the flow chart of uplink synchronization processing method embodiment bis-of the present invention, and as shown in Figure 2, the method for the present embodiment can comprise:

Step 201, send uplink synchronous Indication message to user equipment (UE);

In described uplink synchronous Indication message, carry the identification information of one or more component carrier CC of new configuration.

For instance, this uplink synchronous Indication message can be CC reconfiguration message or PDCCH;

Uplink synchronous Indication message can be used as independently RRC message or MAC PDU sends, or is nested in RRC and connects in reconfiguration message and send.

Specifically, in the situation that needs UE carries out uplink synchronous, in this uplink synchronous Indication message, can be included as dedicated preamble or Sounding RS that UE distributes, the mode that whether need to carry out uplink synchronous by this dedicated preamble or Sounding RS instruction UE on one or more CC of new configuration can adopt above-mentioned explicit instruction or implicit expression instruction, repeats no more.

Therefore, described in step 201, send uplink synchronous Indication message to UE, can comprise: the TA value adjustment that sends expansion to described UE is ordered; Correspondingly, described method also comprises: send CC reconfiguration message to UE, so that described UE obtains the configuration information of the CC corresponding with described identification information according to described CC reconfiguration message; Or

Can comprise: send CC reconfiguration message to described UE, described CC reconfiguration message comprises UE and on a CC of new configuration, needs the TA value of adjusting, or described CC reconfiguration message comprises UE and on multiple CC of new configuration, needs one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

Step 202, know according to described uplink synchronous Indication message that at described UE all or part of CC in a CC or multiple CC of new configuration need to carry out after uplink synchronous, receives the synchronous signaling that described UE sends;

When UE need to carry out uplink synchronous according to uplink synchronous Indication message judgement, can from this uplink synchronous Indication message, obtain corresponding dedicated preamble or Sounding RS, in the time carrying out uplink synchronous, this dedicated preamble or Sounding RS can be sent to base station, base station can be according to this dedicated preamble or the operable TA value of Sounding RS instruction UE.

Because base station can be both a CC of the new configuration of UE according to the demand of bandwidth, can be also the UE multiple CC of new configuration or multiple CC group (a up CC and a descending CC can be referred to as a CC group).For the situation of the multiple CC of new configuration or multiple CC group, base station can be only for UE distributes a dedicated preamble, and this dedicated preamble is that multiple CC share use; Certainly, also can distribute multiple preamble to UE.Therefore, the dedicated preamble that the described UE of reception described in step 202 sends, can comprise: receive the dedicated preamble that described UE sends, a described dedicated preamble needs to carry out on all or part of CC of uplink synchronous and sends in multiple CC of new configuration; Or receive multiple dedicated preamble that described UE sends, described multiple dedicated preamble need to carry out on all or part of CC of uplink synchronous and send in multiple CC of new configuration.

Step 203, send timing advance TA according to described synchronous signaling to described UE and adjust message, be applied on the CC that need to carry out uplink synchronous so that described TA is adjusted the TA value of carrying in message by described UE.

Taking synchronous signaling be dedicated preamble as example, base station, receiving after the dedicated preamble that UE sends, can send TA to UE and adjust message, this TA adjusts in message can carry the TA value on the CC that need to be applied in the new configuration that need to carry out uplink synchronous.

Send TA to described UE and adjust message, can comprise: the TA value that sends expansion to described UE is adjusted order, the TA value of described expansion is adjusted order and is comprised UE and on a CC of new configuration, need the TA value of adjusting, or the TA value of described expansion is adjusted order and comprised UE and on the multiple CC that newly configure, need one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

In another embodiment of uplink synchronization processing method of the present invention, when not needing UE, base station carries out when uplink synchronous, and can be in the following ways:

Send the uplink synchronous Indication message of the TA value of carrying instruction to described UE, in the time that the TA value of any one CC in CC of new configuration and one or more CC of current use is identical, the TA value of described instruction can comprise: the TA value that needs adjustment on a CC of new configuration, or the identification information of the current CC using, the identification information of described CC represents to need on the CC of new configuration the TA value of the TA value that the uses CC corresponding with the identification information of described CC identical;

In the time that multiple CC of new configuration are identical with the TA value of the CC of current use, the TA value of described instruction can comprise: with the CC of multiple new configurations respectively corresponding TA value, distinguish the numbering of corresponding TA value with the CC of multiple new configurations, or the numbering of the CC of current use, the TA value of the TA value of the required use of CC of the new configuration CC corresponding with the numbering of described CC is identical.

Only be configured to use a CC or when the TA value of multiple CC of using is identical, indicate UE whether can use the current TA value using when UE is current;

Also have a kind of situation to be, while not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, upper the current CC using unique TA value is applied in to all or part of CC that does not need to carry out uplink synchronous in one or more CC of new configuration.Specifically, UE and base station can know that the TA value of the current all CC that using of UE is all identical in advance, all CC use unique TA value, now, base station need not be UE instruction TA value specially, after UE receives uplink synchronous Indication message, know while not needing to carry out uplink synchronous on all or part of CC in a CC or multiple CC of new configuration, can directly unique TA value of the current CC using be applied on the CC that does not need to carry out uplink synchronous of new configuration.

Adopt several specific embodiments to be elaborated to above-described embodiment below, following several embodiment are all taking synchronous signaling as dedicated preamble as example describes.

Fig. 3 is the flow chart of uplink synchronization processing method embodiment tri-of the present invention, and as shown in Figure 3, the method for the present embodiment can comprise:

Step 301a, base station send CC reconfiguration message to UE;

In CC reconfiguration message, carry the identification information of one or more CC of new configuration, this identification information is which or which CC for the new configuration of base station instruction UE.In this CC reconfiguration message, can also carry the detailed configuration information of the CC of new configuration.

UE is receiving after this CC reconfiguration message, and that both can know new configuration is which or which CC, also can know whether all or part of CC in a CC or multiple CC of new configuration needs to carry out uplink synchronous.

Step 302a, UE judge whether to carry out uplink synchronous according to this CC reconfiguration message, perform step in this way 303a, otherwise execution step 304a;

Specifically, in the situation that needs UE carries out uplink synchronous, in this CC reconfiguration message, be included as the dedicated preamble that UE distributes.

In the situation that not needing UE to carry out uplink synchronous, for UE indicates operable TA value, concrete mode illustrates in the aforementioned embodiment, repeats no more.

UE is receiving after this CC reconfiguration message, if this CC reconfiguration message has been indicated dedicated preamble, represent that UE need to carry out uplink synchronous on the some or all of CC of a CC of new configuration or multiple CC, if this CC reconfiguration message has been indicated the relevant information of TA, UE does not need to carry out uplink synchronous, can directly realize uplink synchronous according to the relevant information of this TA with the CC of new configuration.

Step 303a, UE send this dedicated preamble to base station, execution step 305a;

In the present embodiment, base station can be both a CC of the new configuration of UE according to the demand of bandwidth, also can be for the UE multiple CC of new configuration or multiple CC are to (up CC and descending CC can be referred to as a CC to).For the multiple CC of new configuration or the right situation of multiple CC, base station can be only for UE distributes a dedicated preamble, and this dedicated preamble is that multiple CC share use; Certainly, also can distribute multiple preamble to UE.

UE, receiving after the CC reconfiguration message that base station sends, knowing need to carry out uplink synchronous time, can send to base station by the dedicated preamble of indicating in this CC reconfiguration message, thereby makes the base station can be according to this dedicated preamble to UE feedback TA value.

Step 304a, UE are applied to the TA value of indicating in CC reconfiguration message on the CC that does not need to carry out uplink synchronous of new configuration.

The TA that step 305a, base station send expansion to UE adjusts order.

The TA of this expansion adjusts the identification information that can comprise CC corresponding to this TA value in order.If when the CC of new configuration only has one or when a pair of, or when only there being one or a pair of need to carry out uplink synchronous time in multiple CC of new configuration, also can not comprise the identification information of CC, be exactly the TA adjustment corresponding to the CC of new configuration and be defaulted as this TA adjustment order.Then, UE is applied to this TA value in the CC of new configuration needs to carry out on the CC of uplink synchronous.

For instance, it can be MAC PDU that the TA of this expansion adjusts order, Fig. 4 is a kind of structural representation that in uplink synchronization processing method embodiment tri-of the present invention, TA adjusts order, as shown in Figure 4, the identification information of CC, the bit number that is CC index is 2-3 bit, and the bit number that the TA of expansion adjustment order extent TA command takies can be 5-6 bit, or can take more bit number.For other MAC PDU of the MAC PDU in the present embodiment and UE reception is distinguished, the TA that MAC PDU in the present embodiment can use the reserved logic channel of current LTE system to send expansion adjusts the MAC PDU of order, for example can use call number is 11011 logic channel, can certainly use the reserved logic channel of other LTE system.

Step 306a, UE adjust the TA value of carrying in order by the TA of expansion and are applied on the CC that need to carry out uplink synchronous.

For instance, UE can adopt formula (1) to calculate TA value, or the account form of TA can be also: TA _new=TA × Ts.

In addition, in this embodiment, in the time that base station has newly configured multiple CC that need to carry out uplink synchronous for UE in CC reconfiguration message, base station can clearly be notified UE should on which CC, receive above-mentioned TA and adjust order in this CC reconfiguration message.In the time that base station sends CC reconfiguration message to UE, instruction UE adjusts the identification information of the CC of order for receiving TA.Or base station also can be used special RRC signaling or MAC PDU or physical layer signaling notice UE to receive the identification information of the CC of TA adjustment order.In other embodiments of the invention, the method that receives TA adjustment order can be used said method, is therefore no longer repeated in this description in other parts of the present invention.

So far, UE can use this TA on the CC that need to carry out uplink synchronous _newthereby, need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, and UE can use this TA _newreach uplink synchronous with the CC of new configuration, and, only trigger UE by uplink synchronous Indication message in this process and carry out uplink synchronous, thereby save downlink radio resource, in the time that UE need to carry out uplink synchronous, can be by send dedicated preamble to base station, the CC that can obtain from base station new configuration needs the TA value using, thereby has improved uplink synchronous speed.

In addition, in this embodiment, when UE is using in the communication process of multiple component carriers, in the time that base station needs the current TA value of accurate adjustment on multiple component carriers that UE using, also can use step 305a described, the TA of the expansion shown in figure tetra-adjusts order MAC PDU.In the time that base station needs the TA value of multiple component carriers that accurate adjustment UE using, the TA that can send this expansion adjusts order MAC PDU to UE, the TA value that the identification information that this TA adjustment order MAC PDU comprises the component carrier that needs UE adjustment and corresponding needs are adjusted.In this case, the TA value of required adjustment is only from the different of TA value of required adjustment in step 305a, and it is less that TA value is in this case adjusted granularity, adjusts more accurately.UE receives this TA and adjusts after order MAC PDU, and corresponding adjustment in this order indicated the TA value that should adjust separately on each component carrier.In other embodiments of the invention, can there is above-mentioned accurate adjustment process, therefore no longer be repeated in this description in other embodiments.

Further, CC reconfiguration message in the present embodiment can comprise that (Physics Uplink Shared Channel, hereinafter to be referred as the information of resource and bring into use the frame information of this PUSCH resource PUSCH) for send the required Physical Uplink Shared Channel of described dedicated preamble to described base station.Specifically, base station is being distributed when dedicated preamble wait the UE that reshuffles CC for those, for UE dispatches the private resource that sends this dedicated preamble on the PUSCH of CC to be reshuffled channel, in this embodiment, can do in the CC reconfiguration message of uplink synchronous as UE distributes special PUSCH resource at above-mentioned triggering UE, send dedicated preamble to make UE dispatch this PUSCH resource on newly assigned CC.Now, in CC reconfiguration message, need clearly to notify UE for sending the frame number of special PUSCH resource of special Preamble.Base station sends special Preamble special PUSCH resource by dispatch UE when to UE transmission CC reconfiguration message, causes negative effect thereby effectively reduce CC reconfiguration course to normal random access procedure.

Fig. 5 is the flow chart of uplink synchronization processing method embodiment tetra-of the present invention, and as shown in Figure 5, the method for the present embodiment can comprise:

Step 301b, base station send PDCCH to UE;

In PDCCH, can carry the identification information of one or more CC of new configuration, this identification information is which or which CC for the new configuration of base station instruction UE.

Step 302b, UE judge whether to carry out uplink synchronous according to this PDCCH, perform step in this way 303b, otherwise execution step 304b;

Specifically, in the situation that needs UE carries out uplink synchronous, in this PDCCH, be included as the dedicated preamble that UE distributes.

In the situation that not needing UE to carry out uplink synchronous, for UE indicates operable TA value, concrete mode repeats no more.

UE is receiving after this PDCCH, if this PDCCH has indicated dedicated preamble, represent that UE need to carry out uplink synchronous on the some or all of CC of a CC of new configuration or multiple CC, if this PDCCH has indicated the relevant information of TA, UE does not need to carry out uplink synchronous, can directly realize uplink synchronous according to the relevant information of this TA with the CC of new configuration.

Step 303b, UE send this dedicated preamble to base station, execution step 305b;

Base station can be both a CC of the new configuration of UE according to the demand of bandwidth, can be also the UE multiple CC of new configuration or multiple CC couple.For the multiple CC of new configuration or the right situation of multiple CC, base station can be only for UE distributes a dedicated preamble, and this dedicated preamble is that multiple CC share use; Certainly, also can distribute multiple preamble to UE.

UE, receiving after the PDCCH that base station sends, knowing need to carry out uplink synchronous time, can send to base station by the dedicated preamble of indicating in this PDCCH, thereby makes the base station can be according to this dedicated preamble to UE feedback TA value.

Step 304b, UE are applied to the TA value of indicating in PDCCH on the CC that does not need to carry out uplink synchronous of new configuration.

The TA that step 305b, base station send expansion to UE adjusts order.

The TA of this expansion adjusts the identification information that can comprise CC corresponding to this TA value in order.If when the CC of new configuration only has one or when a pair of, or when only there being one or a pair of need to carry out uplink synchronous time in multiple CC of new configuration, also can not comprise the identification information of CC, be exactly corresponding to the TA adjustment of the CC of new configuration and be defaulted as this TA adjustment order.Then, UE is applied to this TA value in the CC of new configuration needs to carry out on the CC of uplink synchronous.

For instance, it can be MAC PDU that the TA of this expansion adjusts order, and its structure can adopt the structure shown in Fig. 4, repeats no more.

Step 306b, UE adjust the TA value of carrying in order by the TA of expansion and are applied on the CC that need to carry out uplink synchronous.

The method that UE calculates TA value repeats no more.

Step 307b, UE receive the CC reconfiguration message that base station sends.

In the present embodiment, that triggering UE carries out uplink synchronous is PDCCH, it does not comprise some detailed configuration informations of the CC of new configuration, therefore, in the present embodiment, base station can also send CC reconfiguration message to UE, thereby makes UE obtain the configuration information of the CC corresponding with described identification information according to described CC reconfiguration message.

Further, the present embodiment also can be UE and distributes special PUSCH resource, sends dedicated preamble to make UE dispatch this PUSCH resource on newly assigned CC, thereby effectively reduce CC reconfiguration course, normal random access procedure is caused to negative effect.

Fig. 6 is the flow chart of uplink synchronization processing method embodiment five of the present invention, and as shown in Figure 6, the method for the present embodiment can comprise:

Step 301c, base station send PDCCH to UE;

Step 302c, UE judge whether to carry out uplink synchronous according to this PDCCH, perform step in this way 303c, otherwise execution step 304c;

Specifically, in the situation that needs UE carries out uplink synchronous, be included as the dedicated preamble that UE distributes in this PDCCH, this dedicated preamble can adopt above-mentioned implicit expression instruction or explicit instruction.

Step 303c, UE send this dedicated preamble to base station, execution step 305c;

Step 304c, UE are applied to the TA value of indicating in PDCCH on the CC that does not need to carry out uplink synchronous of new configuration.

Step 305c, base station send CC reconfiguration message to UE.

CC reconfiguration message comprises UE and on a CC of new configuration, needs the TA value of adjusting, or CC reconfiguration message comprises UE and on multiple CC of new configuration, needs one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

In the time that base station is a CC of the new configuration of UE, UE can obtain a TA value by this CC reconfiguration message; In the time that base station is the multiple CC of the new configuration of UE, in this CC reconfiguration message can be both a TA value of multiple CC instruction of new configuration, also can indicate respectively TA value for multiple CC, in the time indicating respectively TA value, also need the TA value of instruction respectively corresponding with the identification information of corresponding CC.

Step 306c, UE are applied in the TA value of carrying in CC reconfiguration message on the CC that need to carry out uplink synchronous.

The method that UE calculates TA value repeats no more.

Fig. 7 is the flow chart of uplink synchronization processing method embodiment six of the present invention, and as shown in Figure 7, the method for the present embodiment can comprise:

The uplink synchronous Indication message that step 401, reception base station send;

This uplink synchronous Indication message can be component carrier CC reconfiguration message or PDCCH;

In described uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, this identification information is for base station, for example new configuration of eNodeB instruction UE be which or which CC.In this CC reconfiguration message, can also carry the detailed configuration information of the CC of new configuration.In the present embodiment, this uplink synchronous Indication message can be used as independently RRC message or MAC PDU sends, or is nested in RRC and connects in reconfiguration message and send.

If step 402 knows that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, carry out uplink synchronous on one or more CC of described new configuration.

Described CC grouping refers to the CC group of one or more CC compositions of sharing same TA value.

Consider in multiple CC, may have wherein several CC can share a TA, and some other CC can share the situation of another one TA.Whether we can share same TA according to CC, and CC is divided into groups.In order to make UE can obtain in advance CC grouping information, thereby whether the CC of knowing new configuration according to this grouping information is to belong to certain CC grouping, the present embodiment is before step 701, can also comprise: receive the CC grouping information that base station sends by broadcast mode or dedicated signaling, the CC in same CC grouping shares a timing advance TA value.

When UE knows that according to the identification information of the CC of new configuration one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, carry out uplink synchronous on one or more CC of described new configuration.The concrete process of carrying out uplink synchronous can adopt the random access procedure based on competition.Should the random access procedure based on competition can be: UE sends random access Preamble message " Random Access Preamble " to base station that the Preamble (totally 64) of selection has implied the size of the upstream message of first scheduling that follow-up UE need to send; Then, the accidental access response message " Random Access Response " that base station issues on descending synchronous signal channel, this message is produced by physical layer.Wherein, the TA value that to be UE need to adjust in the time of up transmission comprising in the Timing Advance Command field in this message, UL Grant field list is shown UE and sends the information of the bandwidth resources of the upstream message distribution of first scheduling.And Temporary C-RNTI field list is shown the interim identification information that UE distributes.RAPID in MAC Header represents the identification information of the preamble of UE transmission, that is: Random Access Pramble ID; In addition,, when base station is in the CC of the new configuration of UE, while having multiple CC to need UE to carry out uplink synchronous, need further existing accidental access response message to be made to following amendment:

When a preamble who selects when UE is random sends simultaneously on multiple CC that need to carry out uplink synchronous, base station sends in the accidental access response message of UE except the information that above-mentioned needs carry, also need to carry multiple TA values identification information of corresponding CC respectively, to make UE at the corresponding relation receiving between TA value and the CC that can clearly know needs adjustment after accidental access response message.

In the time that UE selects at random multiple preamble and send respectively different premable on multiple CC that need to carry out uplink synchronous, existing accidental access response message does not need amendment.

In addition, after UE has selected preamble at random, in order clearly to allow base station know the preamble that UE selects, UE sends the identification information of selected preamble on the current CC using to base station, in the time that base station detects the preamble of UE report on the described CC that need to carry out uplink synchronous, the detection that base station can be based on this preamble and TA value is sent to UE by the TA command messages of expansion in the TA value above-mentioned accidental access response message of use or the other embodiments of the invention that obtain.In this case, because UE has been identified based on preamble in base station, so base station can be not or not UE divides the bandwidth resources that are used in transmission upstream message at accidental access response message, also can omit to this UE and send competition solution message simultaneously.

UE, according to the instruction of accidental access response message " Random Access Response ", sends the upstream message of first scheduling on uplink synchronous channel; Finally, base station, in order to solve the collision problem having caused when multiple UE have used identical preamble, sends conflict to UE and solves message.

Comparatively preferably, the process that the present embodiment is carried out uplink synchronous on one or more CC of new configuration can adopt above-described embodiment one to five in the described uplink synchronisation method of any embodiment, repeat no more.

In another embodiment of uplink synchronization processing method of the present invention, if belonging to identical CC, one or more CC of new configuration and the CC of current use divide into groups, on described one or more CC, use the TA value of the CC of current use.

The present embodiment is in the situation that having CC grouping, can make UE know according to the identification information of CC grouping information and new configuration whether the CC of new configuration belongs to certain CC grouping, in the time belonging to certain CC grouping, directly use this CC corresponding TA that divides into groups to realize uplink synchronous, in the time not belonging to certain CC grouping, can initiate to base station uplink synchronous operation, thereby obtain the TA value of the CC use of new configuration from base station.Therefore, the present embodiment need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Fig. 8 is the flow chart of uplink synchronization processing method embodiment seven of the present invention, and as shown in Figure 8, the method for the present embodiment can comprise:

Step 501, send component carrier CC grouping information by broadcast mode or dedicated signaling to user equipment (UE);

The CC that described CC grouping information is used to indicate in same group shares a TA value.

Consider in multiple CC, may have wherein several CC can share a TA, and some other CC can share the situation of another one TA.Whether we can share same TA according to CC, and CC is divided into groups.In order to make UE can obtain in advance CC grouping information, thereby know according to this grouping information whether the CC of new configuration is to belong to certain CC grouping.

Step 502, send uplink synchronous Indication message to UE;

This uplink synchronous Indication message can be CC reconfiguration message or physical downlink control channel PDCCH.

In described uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, so that described UE is in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous.

When UE knows that according to the identification information of the CC of new configuration one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, carry out uplink synchronous on one or more CC of described new configuration.The concrete process of carrying out uplink synchronous can adopt the random access procedure based on competition.

Further, in the time that UE carries out the switching between base station, target BS can distribute multiple CC for using after switching for UE in switching command.In the time that multiple CC can not share same TA, base station can be by CC grouping information notice UE in switching command.

UE receives after switching command, and the grouping information of the multiple CC based on obtaining in switching command selects a CC to carry out uplink synchronous from each CC group.Or base station also can be specified one for carrying out the CC of uplink synchronous for UE in switching command in each CC group.

Fig. 9 is the flow chart of uplink synchronization processing method embodiment eight of the present invention, and as Fig. 9 shows, the method for the present embodiment can comprise:

The uplink synchronous Indication message that step 601, reception base station send;

In described uplink synchronous Indication message, carry new configuration one or more component carrier CC identification information and on one or more CC of described new configuration, send the indication information of visiting logical reference signal.

In the present embodiment, the logical reference signal of this spy can be Sounding RS.

In LTE system, UE with the process of base station communication in, need to send Sounding RS to base station, to ensure that base station can detect the signal quality of UE on whole upstream bandwidth in real time.The present embodiment, can be in the time reshuffling CC for UE, and first instruction UE sends Sounding RS on the CC of new configuration, and then base station can be based on the detection of Sounding RS is determined to TA value.

Step 602, send to base station and visit logical reference signal on one or more CC of described new configuration according to described indication information;

Step 603, receive the timing advance TA that described base station sends according to the logical reference signal of described spy and adjust message, and described TA is adjusted to the TA value of carrying in message be applied on the CC corresponding with described identification information.

In another embodiment of uplink synchronization processing method of the present invention, uplink synchronous Indication message comprises: CC reconfiguration message, physical downlink control channel PDCCH or media access control protocol data unit MAC PDU, described TA adjusts message and comprises: the TA value of expansion is adjusted order, the TA value of described expansion is adjusted needs the TA value adjusted on the CC that order is included in new configuration, or the adjustment of the TA value of described expansion is ordered the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on the multiple CC that are included in new configuration.

The TA of this expansion adjusts order and can adopt the TA of the expansion described in above-described embodiment one to five to adjust order, repeats no more.

If described uplink synchronous Indication message is PDCCH or MAC PDU, described TA adjustment message is CC reconfiguration message, described CC reconfiguration message is included in needs the TA value adjusted on a CC of new configuration, or described CC reconfiguration message is included in the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on multiple CC of new configuration.

In the present embodiment, the uplink synchronous Indication message that makes UE send the indication information of Sounding RS is carried by sending to UE in base station, UE is being received after this uplink synchronous Indication message, can send to base station Sounding RS, thereby make base station calculate the upper TA value using of CC that is retrieved as the new configuration of UE according to this Sounding RS, and this TA value is sent to UE.Therefore, the present embodiment need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Figure 10 is the flow chart of uplink synchronization processing method embodiment nine of the present invention, and as shown in figure 10, the method for the present embodiment can comprise:

Step 701, send uplink synchronous Indication message to user equipment (UE);

Step 702, receive described UE and send to base station and visit logical reference signal on one or more CC of described new configuration according to described indication information;

Step 703, the timing advance TA sending to described UE according to the logical reference signal of described spy are adjusted message, are applied on the CC corresponding with described identification information so that described TA is adjusted the TA value of carrying in message by described UE.

In another embodiment of uplink synchronization processing method of the present invention, as long as UE receives the CC that comprises new configuration in CC reconfiguration message or CC reconfiguration message, UE just carries out uplink synchronous process.In the present embodiment, can set in advance one group of preamble, when the preamble in this group is exclusively used in CC and reshuffles, use; Or, beyond original Random Access Channel, specially send random access preamble when a kind of new Random Access Channel is set reshuffles for CC, or in the time that CC reshuffles, be that UE scheduling is exclusively used in the PUSCH resource that sends random access Preamble.Thereby avoid the negative effect to traditional random access procedure.The method of the present embodiment can specifically comprise: base station sends CC reconfiguration message to UE, UE is receiving after CC reconfiguration message, from be exclusively used in the preamble group that CC reshuffles, select a preamble to send to base station, or, if system is not exclusively used in the preamble group that CC reshuffles, and be that CC reshuffles and is provided with new Random Access Channel, UE is random from current available preamble selects one, send this preamble to base station new being exclusively used in the Random Access Channel that CC reshuffles, or, if system does not arrange special preamble and new Random Access Channel for CC reshuffles, base station is in the time sending CC reconfiguration message to UE, can in this CC reconfiguration message, send the PUSCH resource of preamble for UE scheduling, UE selects one at random from current available preamble, in the PUSCH resource of then dispatching, send selected preamble in CC reconfiguration message, base station receives after the preamble of UE transmission, sends TA and adjusts order to UE.This TA adjusts in order except needs comprise TA value, also need inclusion test to the identification information of preamble that sends of UE (this identification information can be the identification information in dedicated preamble group, or the identification information of all preamble in current area), alternatively, also can comprise the identification information of the CC of described new configuration.The TA of this expansion adjusts order and can adopt the TA of the expansion described in above-described embodiment one to five to adjust order, repeats no more.

The present embodiment need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Figure 11 is the flow chart of uplink synchronization processing method embodiment ten of the present invention, and as shown in figure 11, the method for the present embodiment can comprise:

Step 801, obtain the component carrier CC that using or the right descending timing value T1 of CC and CC or the right descending timing value T2 of CC of uplink timing advance TA1 and new configuration;

Step 802, application of formula (2) are calculated the uplink timing advance TA2 of the CC that obtains new configuration,

TA2＝TA1+2×(T2－T1) (2)

Step 803, the TA2 obtaining is applied on the CC of new configuration.

In the present embodiment, UE can be according to the TA value of the CC being configured, adjust voluntarily the TA situation of the CC of new configuration, no matter whether multiple CC share TA, UE all can be according to descending timing value and the uplink timing advance of the CC being configured, and the descending timing value of the CC of new configuration, the uplink timing advance of the CC that calculating makes new advances configures.Be appreciated that the present embodiment can interosculate with the method for other embodiment, to calculate the TA value of CC of new configuration.The present embodiment need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

The TA that the technical scheme of above-mentioned all embodiment has been described as an example of Frequency Division Duplexing (FDD) example when CC reshuffles adjusts, for the situation of time division duplex, because CC does not distinguish up CC or descending CC, so by all CC of relating to of above-mentioned arbitrary embodiment reshuffle the CC directly replacing with in time division duplex situation while reshuffling, the method for mentioning in all embodiment is all available.

It should be noted that, in the present invention, each relates to and uses special preamble to carry out in the embodiment of uplink synchronous, can be with the use of following methods instead of dedicated preamble, and detailed process is as follows:

When UE is known need to need to carry out uplink synchronous on one or more CC of new configuration time, the one or more preamble of the random selection of UE, and send selected preamble to base station on one or more CC that need to carry out uplink synchronous, in order clearly to allow base station know the preamble that UE selects, before UE sends these preamble or in the process sending, UE reports the identification information of selected preamble on the current CC using to base station, UE can use any index that reports selected preamble to base station in following manner:

1) RRC signaling; 2) MAC controls PDU; 3) physical layer signaling; 4) identification information of the Preamble of selection is nested in up user face data bag.

In the time that base station detects the preamble of UE report on the described CC that need to carry out uplink synchronous, the detection that base station can be based on this preamble and the TA value that obtains is used existing accidental access response message to send to UE, but in the situation that UE has sent same preamble on multiple CC, need in accidental access response message, indicate multiple TA values, need to indicate the identification information of CC corresponding to multiple TA values simultaneously, allow UE clearly know the corresponding relation between TA value and CC.Or base station is detected the one or more TA values that obtain and also can be used the TA command messages of the expansion described in each embodiment or CC reconfiguration message to send to UE.

In addition, for frequency division duplex system, if base station has newly configured a up CC for UE separately, and be not this UE configuration descending CC corresponding with described up CC, UE cannot obtain described T2 value, and in this case, UE can initiate uplink synchronous operation on described up CC, can on described up CC, carry out random access procedure, or carry out uplink synchronous operation according to the method for other embodiments of the invention.

Figure 12 is the structural representation of subscriber equipment embodiment mono-of the present invention, as shown in figure 12, the UE of the present embodiment can comprise: the first receiver module 11, the first sending module 12 and the first processing module 13, wherein the first receiver module 11, for the uplink synchronous Indication message for receiving base station transmission, carries the identification information of one or more component carrier CC of new configuration in uplink synchronous Indication message; The first sending module 12, in the time knowing that a CC of the new configuration corresponding with described identification information or all or part of CC of multiple CC need to carry out uplink synchronous, sends to base station by synchronous signaling; The first processing module 13, for receiving described base station at the first receiver module according to after the timing advance TA adjustment message of described synchronous signaling transmission, is adjusted the TA value of carrying in message by described TA and is applied on the CC that need to carry out uplink synchronous.

The UE of the present embodiment and the uplink synchronization processing method embodiment mono-shown in Fig. 1 to realize principle identical, repeat no more.

In another embodiment of UE of the present invention, if the uplink synchronous Indication message that described the first receiver module receives is CC reconfiguration message, described the first receiver module is also adjusted order for receiving described base station according to the TA value of the expansion of described synchronous signaling transmission, the TA value of described expansion is adjusted needs the TA value adjusted on the CC that order is included in new configuration, or the adjustment of the TA value of described expansion is ordered the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on the multiple CC that are included in new configuration.

The UE of the present embodiment and the uplink synchronization processing method embodiment tri-shown in Fig. 3 to realize principle identical, repeat no more.

In another embodiment of UE of the present invention, if the uplink synchronous Indication message that described the first receiver module receives is physical downlink control channel PDCCH, described the first receiver module is also adjusted order for receiving described base station according to the TA value of the expansion of described synchronous signaling transmission, and receives the CC reconfiguration message that base station sends.

The UE of the present embodiment and the uplink synchronization processing method embodiment tetra-shown in Fig. 5 to realize principle identical, repeat no more.

At UE of the present invention also in an embodiment, if the uplink synchronous Indication message that described the first receiver module receives is physical downlink control channel PDCCH, the CC reconfiguration message that described the first receiver module also sends according to described synchronous signaling for receiving described base station, described CC reconfiguration message is included in needs the TA value adjusted on a CC of new configuration, or described CC reconfiguration message is included in the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on multiple CC of new configuration.

The UE of the present embodiment and the uplink synchronization processing method embodiment five shown in Fig. 6 to realize principle identical, repeat no more.

In the embodiment of above-mentioned UE, while not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, described the first processing module is also applied to the CC that does not need to carry out uplink synchronous of new configuration for the TA value that described uplink synchronous Indication message is indicated.

The UE of above-described embodiment need to configure new CC for UE in base station, or when the CC that certain that UE is using or some CC need to newly be configured replaces, UE can use this TA value of obtaining and the CC of new configuration to reach uplink synchronous, and, only pass through uplink synchronous Indication message in this process, for example CC reconfiguration message or PDCCH trigger UE and carry out uplink synchronous, thereby save downlink radio resource, in the time that UE need to carry out uplink synchronous, can be by send synchronous signaling to base station, for example dedicated preamble, the CC that can obtain from base station new configuration needs the TA value using, thereby improve uplink synchronous speed.When UE is known while not needing to carry out uplink synchronous according to the uplink synchronous Indication message receiving, get final product the CC that does not need to carry out uplink synchronous in the CC that directly the TA value of indicating in this uplink synchronous Indication message is applied in to new configuration, or directly unique TA value of the current CC using is applied on the CC that does not need to carry out uplink synchronous of new configuration, thereby makes UE also can reach uplink synchronous with the CC of new configuration in the time not needing to carry out uplink synchronous.

Figure 13 is the structural representation of base station embodiment mono-of the present invention, as shown in figure 13, the base station of the present embodiment can comprise: the second sending module 21 and the second receiver module 22, wherein the second sending module 21, for sending uplink synchronous Indication message to user equipment (UE), carries the identification information of one or more component carrier CC of new configuration in described uplink synchronous Indication message; The synchronous signaling of the second receiver module 22 for sending for receiving described UE; The second sending module 21 is also adjusted message for sending timing advance TA according to described synchronous signaling to described UE, is applied on the CC that need to carry out uplink synchronous to indicate described UE that described TA is adjusted to the TA value of carrying in message.

The base station of the present embodiment and the uplink synchronization processing method embodiment mono-shown in Fig. 2 to realize principle identical, repeat no more.

In another embodiment of base station of the present invention, if the uplink synchronous Indication message that described the second sending module sends to UE is CC reconfiguration message, described the second sending module is also adjusted order for the TA value that sends expansion to described UE, the TA value of described expansion is adjusted order and is comprised UE and on a CC of new configuration, need the TA value of adjusting, or the TA value of described expansion is adjusted order and comprised UE and on the multiple CC that newly configure, need one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

The base station of the present embodiment and the uplink synchronization processing method embodiment tri-shown in Fig. 3 to realize principle identical, repeat no more.

In another embodiment of base station of the present invention, if the uplink synchronous Indication message that described the second sending module sends to UE is PDCCH, described the second sending module is also adjusted order and CC reconfiguration message for the TA value that sends expansion to described UE.

The base station of the present embodiment and the uplink synchronization processing method embodiment tetra-shown in Fig. 5 to realize principle identical, repeat no more.

In base station of the present invention also in an embodiment, if the uplink synchronous Indication message that described the second sending module sends to UE is physical downlink control channel PDCCH, described the second sending module is also adjusted order and CC reconfiguration message for the TA value that sends expansion to described UE; Or, described the second sending module is also for sending CC reconfiguration message to described UE, described CC reconfiguration message comprises UE and on a CC of new configuration, needs the TA value of adjusting, or described CC reconfiguration message comprises UE and on multiple CC of new configuration, needs one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

The base station of the present embodiment and the uplink synchronization processing method embodiment five shown in Fig. 6 to realize principle identical, repeat no more.

In the embodiment of above-mentioned base station, base station can send uplink synchronous Indication message to UE, thereby configuring new CC for UE, or when certain or some CC that the CC of the new configuration of application replaces that UE using, can know whether need to carry out uplink synchronous according to this uplink synchronous Indication message, thereby make UE and the CC of new configuration reach uplink synchronous, and, only trigger UE by uplink synchronous Indication message in this process and carry out uplink synchronous, thereby save downlink radio resource, in the time that UE need to carry out uplink synchronous, can be by send synchronous signaling to base station, for example dedicated preamble, the CC that can obtain from base station new configuration needs the TA value using, thereby improve uplink synchronous speed.When UE is known while not needing to carry out uplink synchronous according to the uplink synchronous Indication message receiving, get final product the CC that does not need to carry out uplink synchronous in the CC that directly the TA value of indicating in this uplink synchronous Indication message is applied in to new configuration, or directly unique TA value of the current CC using is applied on the CC that does not need to carry out uplink synchronous of new configuration, thereby makes UE also can reach uplink synchronous with the CC of new configuration in the time not needing to carry out uplink synchronous.

Figure 14 is the structural representation of subscriber equipment embodiment bis-of the present invention, as shown in figure 14, the UE of the present embodiment can comprise: the 3rd receiver module 31 and the 3rd processing module 32, wherein, the 3rd receiver module 31, for receiving the uplink synchronous Indication message of base station transmission, carries the identification information of one or more component carrier CC of new configuration in described uplink synchronous Indication message; The 3rd processing module 32 is in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous, wherein, described CC grouping is the CC group of sharing one or more CC compositions of same TA value.

Further, the 3rd receiver module 31 is before receiving the uplink synchronous Indication message of base station transmission, the CC grouping information also sending by broadcast mode or dedicated signaling for receiving base station, the CC that described CC grouping information is used to indicate in same CC grouping shares a TA value.

The UE of the present embodiment and the uplink synchronization processing method embodiment six shown in Fig. 7 to realize principle identical, repeat no more.

The UE of the present embodiment, in the situation that thering is CC grouping, can know according to the identification information of CC grouping information and new configuration whether the CC of new configuration belongs to certain CC grouping by UE, in the time belonging to certain CC grouping, directly use this CC corresponding TA that divides into groups to realize uplink synchronous, in the time not belonging to certain CC grouping, can initiate to base station uplink synchronous operation, thereby obtain the TA value of the CC use of new configuration from base station.Therefore, need to be for UE configures new CC in base station, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Figure 15 is the structural representation of base station embodiment bis-of the present invention, as shown in figure 15, the base station of the present embodiment can comprise: the 3rd sending module 41 and the 4th sending module 42, wherein, the 3rd sending module 41 is for sending component carrier CC grouping information by broadcast mode or dedicated signaling to user equipment (UE), and the CC that described CC grouping information is used to indicate in same group shares a TA value; The 4th sending module 42 is for sending uplink synchronous Indication message to UE, in described uplink synchronous Indication message, carry the identification information of one or more CC of new configuration, so that described UE is in the time knowing that according to the identification information of described CC one or more CC of new configuration and the CC of current use do not belong to identical CC grouping, on one or more CC of described new configuration, carry out uplink synchronous.

The base station of the present embodiment and the uplink synchronization processing method embodiment seven shown in Fig. 8 to realize principle identical, repeat no more.

The base station of the present embodiment, in the situation that thering is CC grouping, can make UE know according to the identification information of CC grouping information and new configuration whether the CC of new configuration belongs to certain CC grouping, thereby make UE in the time belonging to certain CC grouping, directly use this CC corresponding TA that divides into groups to realize uplink synchronous, in the time not belonging to certain CC grouping, can initiate to base station uplink synchronous operation, thereby obtain the TA value of the CC use of new configuration from base station.Therefore, the base station of the present embodiment is need to be for UE configures new CC, or certain or some CC of using of UE CC that need to newly be configured is while replacing, can make that UE is existing reaches uplink synchronous with the CC of new configuration.

Finally it should be noted that: above embodiment is only in order to technical scheme of the present invention to be described but not be limited, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can be modified or be equal to replacement technical scheme of the present invention, and these amendments or be equal to replacement and also can not make amended technical scheme depart from the spirit and scope of technical solution of the present invention.

Claims

1. a subscriber equipment, is characterized in that, comprising:

The first processing module, for receiving described base station at the first receiver module according to after the timing advance TA adjustment message of described synchronous signaling transmission, adjusts the TA value of carrying in message by described TA and is applied on the CC that need to carry out uplink synchronous;

All or part of CC in a described CC or the multiple CC of knowing the new configuration corresponding with described identification information need to carry out uplink synchronous, comprising:

Know and need on all or part of CC in a CC or multiple CC of new configuration, carry out uplink synchronous according to the assignment information that comprises synchronous signaling in described uplink synchronous Indication message;

Wherein, described synchronous signaling comprises: the logical reference signal of dedicated preamble or spy.

2. subscriber equipment according to claim 1, it is characterized in that, if the uplink synchronous Indication message that described the first receiver module receives is CC reconfiguration message, described the first receiver module is also adjusted order for receiving described base station according to the TA value of the expansion of described synchronous signaling transmission, the TA value of described expansion is adjusted needs the TA value adjusted on the CC that order is included in new configuration, or the adjustment of the TA value of described expansion is ordered the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on the multiple CC that are included in new configuration;

If the uplink synchronous Indication message that described the first receiver module receives is physical downlink control channel PDCCH signaling, described the first receiver module is also adjusted order for receiving described base station according to the TA value of the expansion of described synchronous signaling transmission, and receives the CC reconfiguration message that base station sends; Or, the CC reconfiguration message that described the first receiver module also sends according to described synchronous signaling for receiving described base station, described CC reconfiguration message is included in needs the TA value adjusted on a CC of new configuration, or described CC reconfiguration message is included in the identification information that needs one or more TA values of adjustment and the CC corresponding with each TA value on multiple CC of new configuration.

3. subscriber equipment according to claim 1, is characterized in that, if described first receiver module receive uplink synchronous Indication message be physical downlink control channel PDCCH signaling, the first receiver module also for:

Receive described base station and adjust order according to the TA value of the expansion of described synchronous signaling transmission; Or,

Receive the CC reconfiguration message that described base station sends according to described synchronous signaling, described CC reconfiguration message is included in needs the TA value adjusted on a CC of new configuration, or described CC reconfiguration message is included in the identification information that needs one or more TA values of adjusting and the CC corresponding with each TA value on multiple CC of new configuration.

4. subscriber equipment according to claim 1, is characterized in that, described uplink synchronous Indication message sends as radio resource control RRC message or media access control protocol data unit MAC PDU, or is nested in RRC and connects in reconfiguration message and send.

5. subscriber equipment according to claim 1, it is characterized in that, the information that described uplink synchronous Indication message comprises Physical Uplink Shared Channel PUSCH resource and bring into use the frame information of this PUSCH resource, described PUSCH resource is for sending described synchronous signaling to described base station.

6. according to the subscriber equipment described in arbitrary claim in claim 1～5, it is characterized in that,

While not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, described the first processing module is also applied to the CC that does not need to carry out uplink synchronous of new configuration for the TA value that described uplink synchronous Indication message is indicated; Or

While not needing to carry out uplink synchronous on all or part of CC in the CC or the multiple CC that are informed in new configuration according to described uplink synchronous Indication message, described the first processing module also does not need to carry out all or part of CC of uplink synchronous for one or more CC that upper the current CC using unique TA value is applied in to new configuration.

7. subscriber equipment according to claim 6, is characterized in that, on all or part of CC in a described CC or the multiple CC that is informed in new configuration according to described uplink synchronous Indication message, does not need to carry out uplink synchronous, comprising:

8. according to the subscriber equipment described in arbitrary claim in claim 1～5, it is characterized in that, describedly described TA is adjusted to the TA value of carrying in message be applied in the CC that need to carry out uplink synchronous and go up, comprising:

Application of formula (1) is calculated the TA that obtains the upper required use of CC that need to carry out uplink synchronous _new, and by this TA _newbe applied on the described CC that need to carry out uplink synchronous,

TA _new＝TA _reference+(TA-M)×Ts (1)

Wherein, TA _referencerepresent the TA value on TA value on the current CC using, reference value that base station sends in described uplink synchronous Indication message or the CC in the time setting up for the first time RRC and connect, or TA value on main carrier; M is default empirical value; T _s=1/ (15000 × 2048).

9. a base station, is characterized in that, comprising:

Described the second sending module is also adjusted message for sending timing advance TA according to described synchronous signaling to described UE, is applied on the CC that need to carry out uplink synchronous to indicate described UE that described TA is adjusted to the TA value of carrying in message;

Described to UE transmission uplink synchronous Indication message, comprising:

Send uplink synchronous Indication message to described UE, the bit indication information in described uplink synchronous Indication message is used to indicate and need on all or part of CC in a CC or multiple CC of new configuration, carries out uplink synchronous; Or send uplink synchronous Indication message to described UE, the assignment information of the synchronous signaling in described uplink synchronous Indication message needs to carry out uplink synchronous for being illustrated on a CC of new configuration or all or part of CC of multiple CC;

10. base station according to claim 9, is characterized in that,

If the uplink synchronous Indication message that described the second sending module sends to UE is CC reconfiguration message, described the second sending module is also adjusted order for the TA value that sends expansion to described UE, the TA value of described expansion is adjusted order and is comprised UE and on a CC of new configuration, need the TA value of adjusting, or the TA value of described expansion is adjusted order and comprised UE and on the multiple CC that newly configure, need one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

11. base stations according to claim 9, is characterized in that,

If the uplink synchronous Indication message that described the second sending module sends to UE is physical downlink control channel PDCCH signaling, described the second sending module is also adjusted order and CC reconfiguration message for the TA value that sends expansion to described UE; Or, described the second sending module is also for sending CC reconfiguration message to described UE, described CC reconfiguration message comprises UE and on a CC of new configuration, needs the TA value of adjusting, or described CC reconfiguration message comprises UE and on multiple CC of new configuration, needs one or more TA values of adjustment and the identification information of the CC corresponding with each TA value.

12. according to the base station described in arbitrary claim in claim 10～11, it is characterized in that, while not needing to carry out uplink synchronous on all or part of CC in a CC or multiple CC of new configuration, described to UE transmission uplink synchronous Indication message, comprising:

Send the uplink synchronous Indication message that carries TA value indication information to described UE, in the time that the TA value of any one CC in CC of new configuration and one or more CC of current use is identical, the TA value of described instruction comprises: the TA value that needs adjustment on a CC of new configuration, or the identification information of the current CC using, the identification information of described CC represents to need on the CC of new configuration the TA value of the TA value that the uses CC corresponding with the identification information of described CC identical, in the time that multiple CC of new configuration are identical with the TA value of the CC of current use, the TA value of described instruction comprises: the TA value corresponding with the CC difference of multiple new configurations, the CC numbering of corresponding TA value respectively with multiple new configurations, or the numbering of the CC of current use, the TA value of the TA value of the required use of CC of the new configuration CC corresponding with the numbering of described CC is identical.