CN102196444B - Component carrier updating method and device - Google Patents

Abstract

The embodiment of the invention discloses a method and device for updating a component carrier, belonging to the field of wireless communication. The method includes: receiving a CC update indication message sent by the base station or sending to the terminal, adding, activating, configuring or replacing the indicating message for the CC; when adding/activating/configuring the indicating message for the CC, according to the added/activated/configured CC The frequency or the size of the C-CI value, starting from the current smallest terminal-specific idle CI value, assigns CI values to the added/activated/configured CCs; when replacing the indication message for the CC, it will be removed/deactivated The CI value of the /deconfigured CC is assigned to the added/activated/configured CC. The device includes: a receiving/sending module and an updating module. The embodiment of the present invention realizes the rational allocation of CI values of CCs during the CC update period, avoids the confusion of CI value allocation, and successfully implements cross-carrier scheduling.

Description

Method and apparatus for updating constituent carriers

technical field

The invention relates to the field of wireless communication, in particular to a method and device for updating component carriers.

Background technique

CA (Carrier Aggregation, Carrier Aggregation) technology aggregates multiple CCs (Component Carriers, composing a carrier) into a carrier with a larger bandwidth, which can support high-speed data transmission.

In order to meet the needs of cross-carrier scheduling, a CI (Carrier Indicator, carrier identifier) value is introduced for CC. Cross-carrier scheduling means that information such as the scheduling of a CC can be notified to the terminal through the PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) of other CCs. In a converged network scenario, mutual interference of CCs among macro cells, micro cells, and home base stations can be avoided. For example, terminal 1 uses CC1, CC2, and CC3 of base station 1, and the CI values corresponding to each CC are 000, 001, and 010 in sequence, then the scheduling information of terminal 1 on CC3 of base station 1 can be notified through the PDCCH channels of CC1 and CC2 Terminal 1, specifically, when base station 1 allocates resources on CC3 to terminal 1, then base station 1 will allocate the resource information used by terminal 1 on CC3 and the CI value of CC3 (that is, CI=010), and occupy CC1 or The PDCCH channel on CC2 is notified to Terminal 1. Similarly, if terminal 2 uses CC3, CC4, and CC5 of base station 2, the CI values corresponding to each CC are 000, 001, and 010 in sequence. In base station 2, if cross-carrier scheduling is enabled, the scheduling information of terminal 2 on CC3 The terminal 2 can be notified through CC4 and CC5. In order for the terminal 2 to clearly know which CC the current scheduling information is for, the CI value 000 of CC3 needs to be notified to the terminal 2 through CC4 or CC5 together with the scheduling information. When a CC is added/deleted/replaced, how the base station reconfigures the CI values corresponding to all CCs to ensure normal cross-carrier scheduling becomes a problem.

In the process of realizing the present invention, the inventor finds that there are at least the following problems in the prior art:

If the CC is updated, its CI value cannot be allocated reasonably, and cross-carrier scheduling will be affected, and even the service carried may be interrupted.

Contents of the invention

In order to reasonably allocate CI values of CCs during CC updating, embodiments of the present invention provide a method and device for updating component carriers. Described technical scheme is as follows:

A method of updating a component carrier, the method comprising:

Receive the constituent carrier CC update indication message sent by the base station, or send the constituent carrier CC update indication message to the terminal, the CC update indication message is: CC addition indication message, CC activation indication message, CC configuration indication message or CC replacement indication message;

When the CC update indication message is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency of the added, activated or configured CC or the size of the cell-specific carrier identifier C-CI value, sequentially from The current minimum idle carrier identifier CI value starts to allocate CI values to the added, activated or configured CCs;

When the CC update instruction message is a CC replacement instruction message, assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC; or release the removed, deactivated or deactivated CC The configured CI value of the CC, according to the frequency of the added, activated or configured CC or the size of the C-CI value, sequentially assigns the CI value to the added, activated or configured CC starting from the current smallest idle CI value;

Wherein, the CI value is a CI value specific to the terminal.

A device for updating a component carrier, the device comprising:

The receiving module is configured to receive a component carrier CC update indication message sent by the base station, where the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message or a CC replacement indication message;

The update module includes any one or any combination of the first update unit and the second update unit;

The first update unit is configured to, when the CC update indication message received by the receiving module is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency or cell specific of the added, activated or configured CC The size of the C-CI value of the carrier identifier, and sequentially assign CI values to the added, activated or configured CCs starting from the current smallest idle carrier identifier CI value, and the CI value is a CI value specific to the terminal;

The second update unit is configured to assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC when the CC update indication message received by the receiving module is a CC replacement indication message. CC; or release the CI value of the removed, deactivated or deconfigured CC, and start from the current minimum idle CI value to the Added, activated or configured CCs are assigned CI values.

A device for updating a component carrier, the device comprising:

A sending module, configured to send a constituent carrier CC update indication message to the terminal, where the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message, or a CC replacement indication message;

The update module includes any one or any combination of the first update unit and the second update unit;

The first update unit is configured to, when the CC update indication message sent by the sending module is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency or cell specific of the added, activated or configured CC The size of the C-CI value of the carrier identifier, starting from the current smallest idle carrier identifier CI value, assigning a CI value to the added, activated or configured CC, the CI value is the terminal-specific CI value ;

The second update unit is configured to assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC when the CC update indication message sent by the sending module is a CC replacement indication message. CC; or release the CI value of the removed, deactivated or deconfigured CC, and start from the current minimum idle CI value to the Added, activated or configured CCs are assigned CI values.

The beneficial effects brought by the technical solution provided by the embodiments of the present invention are:

According to the frequency of the added/activated/configured CC or the size of the C-CI value, CI values are allocated to the added/activated/configured CCs sequentially starting from the current minimum idle CI value, or will be removed/deleted The CI value of the activated/deconfigured CC is allocated to the added/activated/configured CC, or the CI value of the removed/deactivated/deconfigured CC is released, according to the frequency or C-CI of the added/activated/configured CC The size of the value, starting from the current minimum idle CI value to allocate CI values to the added/activated/configured CCs, so as to realize the reasonable allocation of CI values of CCs during CC update, avoid CI value allocation confusion, and successfully achieve cross-carrier scheduling.

Description of drawings

FIG. 1 is a flowchart of a method for updating a component carrier provided in Embodiment 1 of the present invention;

FIG. 2 is a flowchart of a method for updating a component carrier provided by Embodiment 2 of the present invention;

FIG. 3 is an information interaction diagram of an initial allocation of CI values between a base station and a terminal provided in Embodiment 2 of the present invention;

FIG. 4 is an information interaction diagram for allocating CI values when CC is added/activated/configured according to Embodiment 2 of the present invention;

FIG. 5 is an information interaction diagram for allocating CI values during CC replacement provided by Embodiment 2 of the present invention;

FIG. 6 is an information interaction diagram for assigning a CI value when a CC is removed/deactivated/deconfigured according to Embodiment 2 of the present invention;

FIG. 7 is a schematic structural diagram of an apparatus for updating a component carrier provided by Embodiment 3 of the present invention;

FIG. 8 is another schematic structural diagram of the device for updating a component carrier provided by Embodiment 3 of the present invention;

FIG. 9 is a schematic structural diagram of an apparatus for updating a component carrier provided in Embodiment 4 of the present invention;

FIG. 10 is a schematic diagram of another structure of an apparatus for updating a component carrier provided by Embodiment 4 of the present invention.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

Example 1

Referring to FIG. 1, this embodiment provides a method for updating a component carrier, including:

101: Receive a CC update indication message sent by the base station, or send a CC update indication message to the terminal, where the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message, or a CC replacement indication message;

Wherein, the CC update indication message may also be: a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message;

102: When the CC update indication message is a CC addition/activation/configuration indication message, according to the frequency of the added/activated/configured CC or the value of the C-CI (Cell Specific Component Carrier Indicator, cell specific carrier identifier), Allocate CI values to the added/activated/configured CCs sequentially starting from the current smallest idle carrier identifier CI value;

When the CC update instruction message is a CC replacement instruction message, assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC; or release the removed/deactivated/deconfigured CC The CI value of the CC, according to the frequency of the added/activated/configured CC or the size of the C-CI value, assigns the CI value to the added/activated/configured CC sequentially from the current smallest idle CI value;

Wherein, the CI value is a specific CI value of the terminal.

When the CC update indication message is a CC removal/deactivation/deconfiguration indication message, release the CI value of the removed/deactivation/deconfiguration CC;

Wherein, "/" in this embodiment means "or".

The method provided in this embodiment allocates CI values to the added/activated/configured CCs sequentially starting from the current minimum idle CI value according to the frequency of the added/activated/configured CCs or the size of the C-CI value, Either assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC, or release the CI value of the removed/deactivated/deconfigured CC, according to the added/activated/configured The frequency of the CC or the size of the C-CI value, starting from the current minimum idle CI value, assigns the CI value to the added/activated/configured CC, or releases the CI value of the removed/deactivated/deconfigured CC, so that The CI value of the CC is allocated reasonably during the CC update period, and the confusion of CI value allocation is avoided, so as to successfully realize cross-carrier scheduling.

For example, when adding/activating/configuring 2 CCs, if the C-CI value of CC1 is smaller than CC2, and there are currently 2 free CI values 001 and 010, the small CI value 001 can be allocated to CC1, and the large CI value can be allocated to CC1. A CI value of 010 is allocated to CC2; or if the frequency of CC1 is less than that of CC2, a small CI value of 001 can be allocated to CC1 and a large CI value of 010 can be allocated to CC2.

Those skilled in the art can understand that there is no necessary relationship between the process of adding/activating/configuring a CC, the process of replacing a CC, and the process of removing/deactivating/deconfiguring a CC, and each of the three processes can constitute a separate implementation example. For example, there may be an embodiment in which only the CCs that are added, activated, or configured are processed similarly to Embodiment 1, and the same method as in the prior art can be used when replacing CCs, that is, using the CI value A complete reconfiguration approach. It is also possible to adopt a processing method similar to that in Embodiment 1 when replacing a CC, and use a method in the prior art when adding, activating or configuring a CC, that is, a method of completely reconfiguring the CI value. The method of complete reconfiguration is to reassign CI values to all updated CCs no matter what kind of CC update occurs, which is not limited in this embodiment.

Example 2

Referring to FIG. 2, this embodiment provides a method for updating a component carrier, and the specific steps are as follows:

200: The base station and the terminal assign a CI value to the CC in the specified state;

Wherein, the specified state is an activation state or a configuration state, and the configuration state includes "configured and activated" and "configured but not activated".

Wherein, the base station may specifically be an eNodeB (evolved Node B, evolved base station), and the terminal may specifically be a UE (User Equipment, user equipment), which is not limited in this embodiment. In addition, the CI values involved in this implementation are all terminal-specific CI values.

Wherein, this step is optional, and this embodiment does not limit the specific implementation method of this step. An implementation method of this step is introduced below, see FIG. 3 .

200a: After the terminal RRC initial connection is established, if the base station needs to start cross-carrier scheduling, the base station sends cross-carrier scheduling indication information to the terminal, which is used to instruct the terminal to allocate a CI value for the CC in the specified state;

Among them, the cross-carrier scheduling indication information can also carry a PDCCH (Physical Downlink Control Channel, Physical Downlink Control Channel) monitoring set, which is used to indicate that the terminal needs to monitor the PDCCH channel of the CC, so as to obtain the scheduling information of all currently designated CCs.

Wherein, the cross-carrier scheduling indication message may be RRC (Radio Resource Control, radio resource control) message, MAC (Media Access Control, media access control) PDU (Protocol Data Unit, protocol data unit) or physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

200b: After the base station sends the cross-carrier scheduling indication message, the base station sequentially assigns the CCs in the specified state from the specified value according to the preset sequence (from small to large or from large to small) according to the frequency or C-CI value of the CC in the specified state. Start assigning CI values;

Wherein, the specified value may be zero or a non-zero value. When there are one or more CCs in the specified state that do not use the CI value, or have no CI value, or have a static fixed CI value, it is incorrect when assigning the CI value to the CC in the specified state. These special state-specific CCs are assigned CI values. If the CC of a special specified state has a fixed CI value of 0, the specified value can be a non-zero value, and if the CC of the special specified state has a fixed CI value other than 0, then The specified value can be zero.

200c: After the terminal receives the cross-carrier scheduling instruction message sent by the base station, the terminal allocates CI values in the same way as the base station, see step 200b for details, and will not be described here;

Wherein, in one allocation process, the preset sequence of the terminal and the base station is the same.

200d: Optionally, the terminal sends a cross-carrier scheduling confirmation message to the base station after completing preparations for cross-carrier scheduling.

Wherein, the cross-carrier scheduling confirmation message may also be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

201: The CI value distribution process when CC is added/activated/configured is as follows, see Figure 4:

201a: The base station sends a CC addition/activation/configuration indication message to the terminal;

Among them, the base station can send a CC addition/activation/configuration instruction message to the terminal according to factors such as terminal business needs or CC channel quality changes, so as to add a new CC to the terminal to meet the terminal QoS (Quality of Service, quality of service) needs.

Wherein, the CC addition/activation/configuration indication message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

201b: The base station assigns a CI value to the newly added/activated/configured CC starting from the current minimum idle CI value in sequence according to the frequency of the added/activated/configured CC or the size of the C-CI value;

201c: After the terminal receives the CC addition/activation/configuration indication message, the terminal allocates the CI value in the same way as the base station, see step 201b for details, and will not repeat them here;

201d: Optionally, after completing adding/activating/configuring, the terminal sends a CC adding/activating/configuring confirmation message to the base station.

Wherein, the CC addition/activation/configuration confirmation message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

For example, before the terminal receives the CC addition/activation/configuration instruction message sent by the base station, the CCs that the terminal is using are CC1 and CC3, and the CC1 and CC3 mentioned here, that is, the C-CI value of the component carrier occupied by the terminal is 1 and 3. At the same time, from the perspective of terminal-specific CI values, we can assume that the current terminal-specific CI values of CC1 and CC3 are 010 and 011 respectively, then the CI values that can be used when the terminal is idle at this time are: 000, 001, 100, 101 , 110, 111. Then, when the base station sends a CC addition/activation/configuration instruction message to the terminal to instruct the terminal to use new CC2 and CC4, the terminal should start from the currently idle minimum CI value and add CC-CI values sequentially according to the size of the C-CI value. CC assigns CI values. That is, the current minimum idle CI value is 000, then the CI value of the new constituent carrier CC2 should be assigned 000, and the CI value of the new constituent carrier CC4 should be the next idle CI value, ie 001.

It can be seen from the above examples that during CC addition/activation/configuration, reasonable allocation of CI values of CCs is realized, CI value allocation confusion is avoided, and cross-carrier scheduling is successfully implemented.

In addition, the base station may also allocate a CI value for the newly added CC before sending the CC addition/activation/configuration instruction message, and then explicitly send the assigned CI value to the terminal in the CC addition/activation/configuration instruction message. That is, the CC addition/activation/configuration indication message needs to include the following information at the same time:

1), the frequency information (or C-CI value) of the newly added/activated/configured CC;

2) The CI value of the newly added/activated/configured CC corresponding to the above-mentioned frequency information (or C-CI value);

After receiving the above CC addition/activation/configuration instruction message, the terminal assigns CI values for these newly added/activated/configured CCs according to the instructions of the base station. The CC generates CI values.

202: The CI value distribution process during CC replacement is as follows, see Figure 5:

202a: The base station sends a CC replacement indication message to the terminal;

Wherein, the base station may send a CC replacement indication message to the terminal according to factors such as terminal service requirements or CC channel quality changes, so as to meet the terminal QoS requirements.

Wherein, the CC replacement indication message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

Wherein, the "replacement" here specifically refers to the replacement of the removed/deactivated/deconfigured CC by the added/activated/configured CC.

202b: The base station allocates the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC; or releases the CI value of the removed/deactivated/deconfigured CC, according to the added/activated /The frequency of the configured CC or the size of the C-CI value, and sequentially assign CI values to the added/activated/configured CCs starting from the current minimum idle CI value;

Wherein, the base station allocates the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC specifically includes: the removed/deactivated/deconfigured CC and the added/activated/configured CC The frequency or C-CI value assigns the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC according to the same preset order (from small to large or from large to small).

Further, if there are more added/activated/configured CCs than removed/deactivated/deconfigured CCs, the current minimum Starting from the idle CI value, CI values are allocated to redundant added/activated/configured CCs;

If there are more removed/deactivated/deconfigured CCs than added/activated/configured CCs, release (or cancel) the CI values of the redundant removed/deactivated/deconfigured CCs.

202c: After the terminal receives the CC replacement instruction message, the terminal allocates CI values in the same way as the base station, see step 202b for details, and will not be described here;

202d: Optionally, after completing the work of CC replacement, the terminal sends a CC replacement confirmation message to the base station.

Wherein, the CC replacement confirmation message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

For example, before the terminal receives the CC replacement message sent by the base station, the CCs being used by the terminal are CC1, CC3, and CC5. The CC1, CC3, and CC5 described here mean that the component carrier occupied by the terminal has a C-CI value of 1. 3 and 5. At the same time, from the perspective of terminal-specific CI values, we can assume that the current terminal-specific CI values of CC1, CC3 and CC5 are 010, 011 and 101 respectively, then when the base station sends a CC replacement message to the terminal to instruct the terminal to use the new When CC2 and CC4 replace CC3 and CC5 that are being used, there are two implementation methods: first release the CI value occupied by the replaced CC3 and CC5, then release the CI value occupied by CC3 and CC5, and then idle The available CI values are: 000, 001, 011, 100, 101, 110, 111. Then the terminal and the base station can allocate CI values to the newly added CC2 and CC4 sequentially according to the size of the C-CI value starting from the currently idle smallest CI value. That is, the current minimum idle CI value is 000, then the CI value of the new constituent carrier CC2 should be 000, and the CI value of the new constituent carrier CC4 should be the next idle CI value, ie 001. Or, more directly, the terminal and the base station can also directly sort the replaced CC3 and CC5 according to the C-CI value, and pay their CI values (that is, 011 and 101) to the new joiner according to the size of the C-CI value. CC2 and CC4. As long as the base station and the terminal follow the same rules, such as the above-mentioned principle from small to large or from large to small, it can be ensured that the base station and the terminal assign the same CI value to the newly added CCs, so as to keep the CI value of the base station and the terminal consistent .

It can be seen from the above examples that during the CC replacement period, the CI values of the CCs are allocated reasonably, avoiding confusion in CI value allocation, and successfully implementing cross-carrier scheduling.

In addition, the base station may also allocate a CI value for the newly added CC before sending the CC replacement message, and then explicitly send the allocated CI value to the terminal in the CC replacement message. That is, the following information needs to be included in the CC replacement indication message at the same time:

1), the frequency information (or C-CI value) of the newly added/activated/configured CC

2) The CI value of the newly added/activated/configured CC corresponding to the above-mentioned frequency information (or C-CI value);

After the terminal receives the above CC replacement message, the terminal releases the CI values of the removed/deactivated/deconfigured CCs, and at the same time allocates CI values for these newly added/activated/configured CCs according to the instructions of the base station. In this method In this case, the terminal does not need to automatically generate CI values for newly added/activated/configured CCs.

203: The CI value allocation process when the CC is removed/deactivated/deconfigured is as follows, see Figure 6:

203a: The base station sends a CC removal/deactivation/deconfiguration indication message to the terminal;

Wherein, the base station may send a CC removal/deactivation/deconfiguration indication message to the terminal according to factors such as terminal service needs or CC channel quality changes, so as to meet the terminal QoS requirements.

Wherein, the CC removed/deactivated/deconfigured indication message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

203b: The base station releases (or cancels) the CI value of the removed/deactivated/deconfigured CC, and the CI values of other CCs remain unchanged;

Wherein, "other CCs" refer to CCs in a specified state other than the removed/deactivated/deconfigured CCs.

203c: The terminal allocates the CI value in the same way as the base station, see step 203b for details, which will not be repeated here;

203d: Optionally, after completing the CC removal/deactivation/deconfiguration work, the terminal sends a CC removal/deactivation/deconfiguration confirmation message to the base station.

Wherein, the CC is removed/deactivated/deconfigured confirmation message may be an RRC message, a MAC PDU or a physical layer signaling. If it is an RRC message, the cross-carrier scheduling indication message may be carried in the RRC connection reconfiguration message and sent. In addition, when the terminal performs handover between base stations, the cross-carrier scheduling instruction message may be carried in the handover command message and sent.

In addition, after several CCs are removed/deactivated/deconfigured, or after several removed/deactivated/deconfigured CCs are replaced by several added/activated/configured CCs, if the CI values of the CCs in the current specified state total If it remains unchanged, it may have a certain negative impact on the reuse of CI values. "CI value multiplexing" means that when the CI value used by the terminal is only 1-2 bits, the current protocol stipulates that the CI value occupies 3 bits, and the remaining 1 or 2 bits can be used for other indications, such as when When the CI value only occupies 2 bits, the remaining 1 bit can be used to indicate to the terminal whether the number of symbols occupied by the current PDCCH channel is 2 symbols or 3 symbols. Therefore, in order to ensure the flexibility of multiplexing the remaining bits of the CI value at the physical layer while avoiding unnecessary reconfiguration/resetting of the CI value, this embodiment may restrict the reconfiguration/reset of the CI value as follows:

When the number of CCs in the currently specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2, reconfiguration/resetting of the CI value is performed; where N=1, 2, ..., a-1, a is the number of bits occupied by the preset CI value, currently LTE (Long Term Evolution, Long Term Evolution) stipulates that a=3.

Among them, the reconfiguration/resetting of the CI value means that the CCs in the specified state can be sequentially changed from Specify the value to start assigning CI values, and the specified state is active or configured. Wherein, the specified value may be zero or a non-zero value. When there are one or more CCs in the specified state that do not use the CI value, or have no CI value, or have a static fixed CI value, it is incorrect when assigning the CI value to the CC in the specified state. These special state-specific CCs are assigned CI values. If the CC of a special specified state has a fixed CI value of 0, the specified value can be a non-zero value, and if the CC of the special specified state has a fixed CI value other than 0, then The specified value can be zero.

Or, while sending the CC update instruction message to the terminal, the base station sends an instruction message to the terminal to reconfigure/reset the CI value for the CC in the expected specified state according to preset conditions; the base station performs CI value reconfiguration for the CC in the expected specified state Reconfigure/reset. Correspondingly, while receiving the CC update instruction message sent by the base station, the terminal receives an instruction message sent by the base station to reconfigure/reset the CI value for the CC in the expected specified state, and performs CI value reconfiguration for the CC in the expected specified state. Reconfigure/reset.

Among them, the CC in the expected specified state refers to the CC that should be used by the terminal or base station after the terminal or base station performs the corresponding CC addition/activation/configuration, CC removal/deactivation/deconfiguration, or CC replacement operation according to the CC update instruction message. CC for the specified state.

Wherein, the preset condition includes at least one of preset condition 1 and preset condition 2;

The first preset condition is: the base station needs to reuse the CI value;

The second preset condition is: the number of CCs in the expected specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2; where N=1, 2, ..., a-1, a is the number of bits occupied by the preset CI value, and a=3 is currently stipulated in LTE.

In addition, considering the scenario of RRC connection re-establishment in the terminal, the so-called RRC connection re-establishment means that the terminal will choose to re-establish the RRC connection with the original serving base station/serving cell in the event of a radio link failure or handover failure. , therefore, the terminal can also perform the reconfiguration/reset process of the CI value in the following situations, namely:

When receiving the RRC connection re-establishment message sent by the base station or when receiving the first RRC connection re-configuration message sent by the base station after sending the RRC connection re-establishment message, CI value reconfiguration/resetting is performed.

The method provided in this embodiment allocates CI values to the added/activated/configured CCs sequentially starting from the current minimum idle CI value according to the frequency of the added/activated/configured CCs or the size of the C-CI value, Either assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC, or release the CI value of the removed/deactivated/deconfigured CC, according to the added/activated/configured The frequency of the CC or the size of the C-CI value, starting from the current minimum idle CI value, assigns the CI value to the added/activated/configured CC, or releases the CI value of the removed/deactivated/deconfigured CC, so that The CI value of the CC is allocated reasonably during the CC update period, and the confusion of CI value allocation is avoided, so as to successfully realize cross-carrier scheduling.

Example 3

Referring to FIG. 7, this embodiment provides an apparatus for updating a component carrier, including:

The receiving module 301 is configured to receive a component carrier CC update instruction message sent by the base station, the CC update instruction message is: a CC addition instruction message, a CC activation instruction message, a CC configuration instruction message or a CC replacement instruction message;

The update module 302 includes any one or any combination of the first update unit 302a and the second update unit 302b. In FIG. 7, the two units are included at the same time. This embodiment should not be construed as a limitation of the present invention ;

The first update unit 302a is configured to, when the CC update indication message received by the receiving module 301 is a CC addition/activation/configuration indication message, according to the frequency of the added/activated/configured CC or the cell-specific carrier identifier C-CI value The size of the CI value is allocated to the added/activated/configured CC starting from the current smallest idle carrier identifier CI value, and the CI value is a terminal-specific CI value;

The second update unit 302b is configured to assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC when the CC update indication message received by the receiving module 301 is a CC replacement indication message; Or, release the CI value of the removed/deactivated/deconfigured CC, according to the frequency of the added/activated/configured CC or the size of the C-CI value, starting from the current minimum idle CI value to the added/activated/configured CC value. The configured CC assigns the CI value.

Wherein, the receiving module 301 is further configured to receive a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message sent by the base station;

The updating module 302 further includes: a fifth updating unit 302c, configured to release the CI value of the removed/deactivated/deconfigured CC when the receiving module 301 receives the CC removed/deactivated/deconfigured indication message.

Wherein, the first update unit 302a is specifically used for:

When the CC update instruction message received by the receiving module 301 is a CC replacement instruction message, the frequency or C-CI value of the removed/deactivated/deconfigured CC and the added/activated/configured CC are in the same preset order, The CI values of the removed/deactivated/deconfigured CCs are allocated to the added/activated/configured CCs, and the preset order is from small to large or from large to small.

Wherein, referring to FIG. 8, when the CC update instruction message received by the receiving module 301 is a CC replacement instruction message, the update module 302 further includes:

The third updating unit 302d is configured to: if there are more added/activated/configured CCs than removed/deactivated/deconfigured CCs, according to the frequency of the redundant added/activated/configured CCs or the size of the C-CI value, Starting from the current minimum idle CI value in sequence, assign CI values to redundant added/activated/configured CCs;

The fourth update unit 302e is configured to release CI values of redundant removed/deactivated/deconfigured CCs if more CCs are removed/deactivated/deconfigured than added/activated/configured CCs.

Further, in order to ensure the flexibility of multiplexing the remaining bits of the CI value at the physical layer while avoiding unnecessary reconfiguration of the CI value, the device further includes:

The first reconfiguration module 303, when the number of CCs in the current specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2, reconfigure the CI value for the CCs in the current specified state configure/reset;

The specified state is an active state or a configuration state, N=1, 2, ..., a-1, where a is the number of bits occupied by a preset CI value.

Further, the receiving module 301 is also configured to receive an instruction message sent by the base station to perform reconfiguration/resetting of the CI value for the CC in the expected designated state; then the device further includes:

The second reconfiguration module 304 is configured to reconfigure/reset the CI value for the CC in the expected specified state;

The CC in the expected specified state means that after the terminal or the base station performs the corresponding CC addition/activation/configuration, CC removal/deactivation/deconfiguration or CC replacement operation according to the CC update instruction message, A CC in a specified state that the terminal or the base station should use; the specified state is an active state or a configured state.

Further, the device also includes:

The initial configuration module 305 is configured to receive the cross-carrier scheduling instruction message sent by the base station before receiving the component carrier CC update instruction message sent by the base station, according to the preset sequence according to the frequency or C-CI value of the CC in the specified state, in order: CCs in the specified state are assigned CI values starting from the specified value. The specified state is the active state or configuration state, and the preset order is from small to large or from large to small.

Further, the apparatus further includes: a scheduling module 306, configured to schedule the CCs after the CI values are allocated.

The device provided in this embodiment belongs to the same concept as the terminal in the method embodiment, and can be placed in a terminal device to allocate CI values for updated CCs. The specific implementation process is detailed in the method embodiment, and will not be repeated here.

The device provided in this embodiment allocates CI values to the added/activated/configured CCs sequentially starting from the current minimum idle CI value according to the frequency of the added/activated/configured CCs or the size of the C-CI value, Either assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC, or release the CI value of the removed/deactivated/deconfigured CC, according to the added/activated/configured The frequency of the CC or the size of the C-CI value, starting from the current minimum idle CI value, assigns the CI value to the added/activated/configured CC, or releases the CI value of the removed/deactivated/deconfigured CC, so that The CI value of the CC is allocated reasonably during the CC update period, and the confusion of CI value allocation is avoided, so as to successfully realize cross-carrier scheduling.

Example 4

Referring to FIG. 9, this embodiment provides an apparatus for updating a component carrier, including:

The sending module 401 is configured to send a component carrier CC update indication message to the terminal, and the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message or a CC replacement indication message;

The update module 402 includes any one or any combination of the first update unit 402a and the second update unit 402b, and FIG. 9 is not a limitation of this embodiment;

The first update unit 402a is configured to, when the CC update instruction message sent by the sending module 401 is a CC addition/activation/configuration instruction message, according to the frequency of the added/activated/configured CC or the cell-specific carrier identifier C-CI value The size of , starting from the current smallest idle carrier identifier CI value, assigns CI values to the added/activated/configured CCs, and the CI values are terminal-specific CI values;

The second update unit 402b is configured to assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC when the CC update indication message sent by the sending module 401 is a CC replacement indication message; Or, release the CI value of the removed/deactivated/deconfigured CC, according to the frequency of the added/activated/configured CC or the size of the C-CI value, starting from the current minimum idle CI value to the added/activated/configured CC value. The configured CC assigns the CI value.

Wherein, the sending module 401 is further configured to send a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message;

The updating module 402 further includes: a fifth updating unit 402c, configured to release the CI value of the removed/deactivated/deconfigured CC when the sending module 401 sends the CC removed/deactivated/deconfigured indication message.

Wherein, the first updating unit 402a is specifically used for:

When the CC update instruction message is a CC replacement instruction message, the frequency or C-CI value of the removed/deactivated/deconfigured CC and the added/activated/configured CC will be removed/ The CI values of the deactivated/deconfigured CCs are allocated to the added/activated/configured CCs, and the preset order is from small to large or from large to small.

Wherein, referring to FIG. 10, when the CC update instruction message sent by the sending module 401 is a CC replacement instruction message, the update module 402 further includes:

The third updating unit 402d is configured to: if there are more added/activated/configured CCs than removed/deactivated/deconfigured CCs, according to the frequency of the redundant added/activated/configured CCs or the size of the C-CI value, Starting from the current minimum idle CI value in sequence, assign CI values to redundant added/activated/configured CCs;

The fourth update unit 402e is configured to release CI values of redundant removed/deactivated/deconfigured CCs if more CCs are removed/deactivated/deconfigured than added/activated/configured CCs.

Further, in order to ensure the flexibility of multiplexing the remaining bits of the CI value at the physical layer while avoiding unnecessary reconfiguration of the CI value, the device further includes:

The first reconfiguration module 403, when the number of CCs in the current specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2, reconfigure the CI value for the CCs in the current specified state configure/reset;

The specified state is an active state or a configuration state, N=1, 2, ..., a-1, where a is the number of bits occupied by a preset CI value.

Further, the sending module 401 is further configured to send an indication message to the terminal to reconfigure/reset the CI value for the CC in the expected specified state according to preset conditions; then the device further includes:

The second reconfiguration module 404 is configured to reconfigure/reset the CI value of the CC in the expected specified state;

The preset conditions include at least one of preset condition 1 and preset condition 2;

The first preset condition is: the base station needs to reuse the CI value;

The second preset condition is: the number of CCs in the expected specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2; where N=1, 2, ..., a-1, a The number of bits occupied by the preset CI value.

Further, the device also includes:

The initial configuration module 405 is configured to send a cross-carrier scheduling instruction message to the terminal before sending the component carrier CC update instruction message to the terminal, according to the preset sequence according to the frequency or C-CI value of the CC in the specified state, and the specified state in turn The CC assigns CI values from the specified value, the specified state is active state or configuration state, and the preset order is from small to large or from large to small.

Further, the apparatus further includes: a scheduling module 406, configured to schedule the CCs after the CI values are allocated.

The device provided in this embodiment belongs to the same concept as the base station in the method embodiment, and can be placed in a base station to allocate CI values for updated CCs. The specific implementation process is detailed in the method embodiment, and will not be repeated here.

The device provided in this embodiment allocates CI values to the added/activated/configured CCs sequentially starting from the current minimum idle CI value according to the frequency of the added/activated/configured CCs or the size of the C-CI value, Either assign the CI value of the removed/deactivated/deconfigured CC to the added/activated/configured CC, or release the CI value of the removed/deactivated/deconfigured CC, according to the added/activated/configured The frequency of the CC or the size of the C-CI value, and the CI value is allocated to the added/activated/configured CC starting from the current minimum idle CI value; or the CI value of the removed/deactivated/deconfigured CC is released, Therefore, it is realized that the CI value of the CC is allocated reasonably during the update period of the CC, and the confusion of the allocation of the CI value is avoided, so as to successfully realize the cross-carrier scheduling.

All or part of the technical solutions provided by the above embodiments can be realized by software programming, and the software program is stored in a readable storage medium, such as a hard disk, an optical disk or a floppy disk in a computer. The above method or device embodiment is applicable to the cross-carrier scheduling scenario. In the cross-carrier scheduling application, if the CC needs to be updated, the CI value can be reasonably allocated to the updated CC, so as to schedule the CC after the CI value is allocated, and improve Service stability of cross-carrier scheduling.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within range.

Claims (19)

1. A method for updating a component carrier, characterized in that the method comprises: Receive the constituent carrier CC update indication message sent by the base station, or send the constituent carrier CC update indication message to the terminal, the CC update indication message is: CC addition indication message, CC activation indication message, CC configuration indication message or CC replacement indication message; When the CC update indication message is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency of the added, activated or configured CC or the size of the cell-specific carrier identifier C-CI value, sequentially from The current minimum idle carrier identifier CI value starts to allocate CI values to the added, activated or configured CCs; When the CC update instruction message is a CC replacement instruction message, assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC; or release the removed, deactivated or deactivated CC The configured CI value of the CC, according to the frequency of the added, activated or configured CC or the size of the C-CI value, sequentially assigns the CI value to the added, activated or configured CC starting from the current smallest idle CI value; Wherein, the CI value is a CI value specific to the terminal; The method also includes: When the number of CCs in the currently specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2, reconfigure or reset the CI value for the CCs in the currently specified state; The specified state is an activation state or a configuration state, the N=1, 2, ..., a-1, and the a is the number of bits occupied by a preset CI value. 2. The method according to claim 1, further comprising: receiving a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message sent by the base station, or sending a CC removal indication message to the terminal message, CC deactivation indication message or CC deconfiguration indication message; Release the CI value of the removed, deactivated or deconfigured CC. 3. The method according to claim 1, wherein when the CC update indication message is a CC replacement indication message, the CI value of the removed, deactivated or deconfigured CC is allocated to the added, deactivated or deconfigured CC. Activated or configured CCs include: When the CC update indication message is a CC replacement indication message, assign the CI value of the removed, deactivated or deconfigured CC to the added , activated or configured CCs, the preset order is from small to large or from large to small. 4. The method according to claim 1, wherein when the CC update indication message is a CC replacement indication message, the method further comprises: If the added, activated, or configured CCs are more than the removed, deactivated, or deconfigured CCs, according to the frequency of the redundant added, activated, or configured CCs or the size of the C-CI value, the current minimum Starting from the idle CI value of , assign CI values to the redundant added, activated or configured CCs; If the removed, deactivated or deconfigured CCs are more than the added, activated or configured CCs, release the CI values of the redundant removed, deactivated or deconfigured CCs. 5. The method according to any one of claims 1 to 4, wherein before receiving the component carrier CC update indication message sent by the base station, the method further includes: receiving a cross-carrier scheduling indication message sent by the base station; According to the preset order of CC frequency or C-CI value, assign CI values to CCs in the specified state starting from the specified value, and the specified state is the activation state or configuration state, and the preset order is from small to large Or from largest to smallest. 6. The method according to any one of claims 1 to 4, wherein before sending the component carrier CC update indication message to the terminal, it further comprises: sending a cross-carrier scheduling indication message to the terminal; According to the preset order of CC frequency or C-CI value, assign CI values to CCs in the specified state starting from the specified value, and the specified state is the activation state or configuration state, and the preset order is from small to large Or from largest to smallest. 7. A method for updating a component carrier, characterized in that the method comprises: Receive the constituent carrier CC update indication message sent by the base station, or send the constituent carrier CC update indication message to the terminal, the CC update indication message is: CC addition indication message, CC activation indication message, CC configuration indication message or CC replacement indication message; When the CC update indication message is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency of the added, activated or configured CC or the size of the cell-specific carrier identifier C-CI value, sequentially from The current minimum idle carrier identifier CI value starts to allocate CI values to the added, activated or configured CCs; When the CC update instruction message is a CC replacement instruction message, assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC; or release the removed, deactivated or deactivated CC The configured CI value of the CC, according to the frequency of the added, activated or configured CC or the size of the C-CI value, sequentially assigns the CI value to the added, activated or configured CC starting from the current smallest idle CI value; Wherein, the CI value is a CI value specific to the terminal; The sending the component carrier CC update instruction message to the terminal also includes: Sending an indication message to the terminal to reconfigure or reset the CI value for the CC in the expected specified state; The method also includes: performing reconfiguration or reset of CI values for the CCs in the expected specified state; The CC in the expected specified state means that the terminal or the base station performs corresponding CC addition, CC activation, CC configuration, CC removal, CC deactivation, CC deconfiguration or CC After the replacement operation, the CC of the specified state that the terminal or the base station should use; The specified state is an active state or a configured state; Wherein, the sending an indication message to the terminal to reconfigure or reset the CI value of the CC in the expected specified state includes: Sending an instruction message to the terminal to reconfigure or reset the CI value for the CC in the expected specified state according to preset conditions; The preset condition includes at least one of preset condition 1 and preset condition 2; The first preset condition is: the base station needs to multiplex the CI value; The second preset condition is: the number of CCs in the expected specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2; where N=1, 2, ..., a -1, a is the number of bits occupied by the preset CI value. 8. The method according to claim 7, further comprising: receiving a CC removal indication message, a CC deactivation indication message or a CC deconfiguration indication message sent by the base station, or sending a CC removal indication message to the terminal message, CC deactivation indication message or CC deconfiguration indication message; Release the CI value of the removed, deactivated or deconfigured CC. 9. The method according to claim 7, wherein when the CC update indication message is a CC replacement indication message, the CI value of the removed, deactivated or deconfigured CC is assigned to the added, deactivated or deconfigured CC. Activated or configured CCs include: When the CC update indication message is a CC replacement indication message, assign the CI value of the removed, deactivated or deconfigured CC to the added , activated or configured CCs, the preset order is from small to large or from large to small. 10. The method according to claim 7, wherein when the CC update indication message is a CC replacement indication message, the method further comprises: If the added, activated, or configured CCs are more than the removed, deactivated, or deconfigured CCs, according to the frequency of the redundant added, activated, or configured CCs or the size of the C-CI value, the current minimum Starting from the idle CI value of , assign CI values to the redundant added, activated or configured CCs; If the removed, deactivated or deconfigured CCs are more than the added, activated or configured CCs, release the CI values of the redundant removed, deactivated or deconfigured CCs. 11. The method according to claim 7, wherein the receiving the component carrier CC update indication message sent by the base station further comprises: Receiving an indication message sent by the base station to reconfigure or reset the CI value for the CC in the expected specified state; The method also includes: performing reconfiguration or reset of CI values for the CCs in the expected specified state; The CC in the expected specified state means that the terminal or the base station performs corresponding CC addition, CC activation, CC configuration, CC removal, CC deactivation, CC deconfiguration or CC After the replacement operation, the CC of the specified state that the terminal or the base station should use; The specified state is an activation state or a configuration state. 12. The method according to any one of claims 7 to 10, wherein before receiving the component carrier CC update indication message sent by the base station, the method further includes: receiving a cross-carrier scheduling indication message sent by the base station; According to the preset order of CC frequency or C-CI value, assign CI values to CCs in the specified state starting from the specified value, and the specified state is the activation state or configuration state, and the preset order is from small to large Or from largest to smallest. 13. The method according to any one of claims 7 to 10, wherein before sending the component carrier CC update indication message to the terminal, it further comprises: sending a cross-carrier scheduling indication message to the terminal; According to the preset order of CC frequency or C-CI value, assign CI values to CCs in the specified state starting from the specified value, and the specified state is the activation state or configuration state, and the preset order is from small to large Or from largest to smallest. 14. A device for updating a component carrier, characterized in that the device comprises: The receiving module is configured to receive a component carrier CC update indication message sent by the base station, and the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message or a CC replacement indication message; The update module includes any one or any combination of the first update unit and the second update unit; The first update unit is configured to, when the CC update indication message received by the receiving module is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency or cell specific of the added, activated or configured CC The size of the C-CI value of the carrier identifier, and assign CI values to the added, activated or configured CCs sequentially starting from the current smallest idle carrier identifier CI value, and the CI value is a terminal-specific CI value; The second update unit is configured to assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC when the CC update indication message received by the receiving module is a CC replacement indication message. CC; or release the CI value of the removed, deactivated or deconfigured CC, and start from the current minimum idle CI value to the Increased, activated or configured CC allocation CI value; The device also includes: The first reconfiguration module is used to execute the CI value for the CCs in the currently specified state when the number of CCs in the currently specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2 reconfiguration or reset of the The specified state is an activation state or a configuration state, the N=1, 2, ..., a-1, and the a is the number of bits occupied by a preset CI value. 15. The device according to claim 14, wherein when the CC update instruction message received by the receiving module is a CC replacement instruction message, the update module further includes: A third updating unit, configured to, if the added, activated or configured CCs are more than the removed, deactivated or deconfigured CCs, according to the frequency or C-CI value of the redundant added, activated or configured CCs , starting from the current minimum idle CI value, and assigning CI values to the redundant added, activated or configured CCs; A fourth updating unit, configured to release CI values of redundant removed, deactivated or deconfigured CCs if the removed, deactivated or deconfigured CCs are more than the added, activated or configured CCs . 16. The device of claim 14, further comprising: The initial configuration module is configured to receive the cross-carrier scheduling instruction message sent by the base station before receiving the component carrier CC update instruction message sent by the base station, and sequentially provide the CC frequency or C-CI value preset order for the CI values are assigned to CCs in a specified state starting from a specified value, the specified state being an activation state or a configuration state, and the preset order is from small to large or from large to small. 17. A device for updating a component carrier, characterized in that the device comprises: A sending module, configured to send a constituent carrier CC update indication message to the terminal, where the CC update indication message is: a CC addition indication message, a CC activation indication message, a CC configuration indication message, or a CC replacement indication message; The update module includes any one or any combination of the first update unit and the second update unit; The first update unit is configured to, when the CC update indication message sent by the sending module is a CC addition indication message, a CC activation indication message or a CC configuration indication message, according to the frequency or cell specific of the added, activated or configured CC The size of the C-CI value of the carrier identifier, starting from the current smallest idle carrier identifier CI value, assigning a CI value to the added, activated or configured CC, the CI value is the terminal-specific CI value ; The second update unit is configured to assign the CI value of the removed, deactivated or deconfigured CC to the added, activated or configured CC when the CC update indication message sent by the sending module is a CC replacement indication message. CC; or release the CI value of the removed, deactivated or deconfigured CC, and start from the current minimum idle CI value to the Increased, activated or configured CC allocation CI value; The sending module is further configured to send an instruction message to the terminal to reconfigure or reset the CI value of the CC in the expected designated state according to preset conditions, wherein the CC in the expected designated state refers to the terminal or the base station The specified state that the terminal or the base station should use after performing corresponding CC addition, CC activation, CC configuration, CC removal, CC deactivation, CC deconfiguration, or CC replacement operations according to the CC update instruction message CC, the specified state is an active state or a configuration state; The preset condition includes at least one of preset condition 1 and preset condition 2; The first preset condition is: the base station needs to multiplex the CI value; The second preset condition is: the number of CCs in the expected specified state is less than or equal to the Nth power of 2, and the currently used maximum CI value is greater than the Nth power of 2; where N=1, 2, ..., a -1, a is the number of bits occupied by the preset CI value; The device also includes: The second reconfiguration module is configured to reconfigure or reset the CI value of the CC in the expected specified state. 18. The device according to claim 17, wherein when the CC update instruction message sent by the sending module is a CC replacement instruction message, the update module further includes: A third updating unit, configured to, if the added, activated or configured CCs are more than the removed, deactivated or deconfigured CCs, according to the frequency or C-CI value of the redundant added, activated or configured CCs , starting from the current minimum idle CI value, and assigning CI values to the redundant added, activated or configured CCs; A fourth updating unit, configured to release CI values of redundant removed, deactivated or deconfigured CCs if the removed, deactivated or deconfigured CCs are more than the added, activated or configured CCs . 19. The device of claim 17, further comprising: The initial configuration module is configured to send a cross-carrier scheduling instruction message to the terminal before sending the component carrier CC update instruction message to the terminal, and the designated states are in sequence according to the preset order of CC frequencies or C-CI values CI values are assigned to the CCs starting from the specified value, the specified state is the activation state or the configuration state, and the preset order is from small to large or from large to small.

Images