WO2012136058A1

WO2012136058A1 - Method and system for indicating non-adjacent carrier aggregation capability of user equipment

Info

Publication number: WO2012136058A1
Application number: PCT/CN2011/081648
Authority: WO
Inventors: 余波; 杨立
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-04-02
Filing date: 2011-11-01
Publication date: 2012-10-11
Also published as: CN102740471A

Abstract

Disclosed is a method for indicating the non-adjacent carrier aggregation capability of a user equipment (UE), comprising: a UE notifying a network side of capability information of support of non-adjacent carrier aggregation of the UE; the network side allocating, according to the capability of support of non-adjacent carrier aggregation of the UE and the capability of a cell where the UE is located, resources to the UE. Also disclosed is a system for indicating the non-adjacent carrier aggregation capability of a UE, comprising a network side and a UE. The UE is used to notify the network side of capability information of support of non-adjacent carrier aggregation thereof; the network side is used to allocate, according to the capability of support of non-adjacent carrier aggregation of the UE and the capability of a cell where the UE is located, resources to the UE. The present invention is capable of explicitly indicating the multi-carrier cases supported by the UE, thereby significantly facilitating carrier configuration on the UE by the network side, and improving the carrier utilization efficiency at the system side.

Description

Method and system for indicating non-adjacent carrier aggregation capability of user equipment

The present invention relates to a technique for indicating a non-adjacent carrier aggregation capability of a user equipment, and more particularly to a method and system for indicating a neighboring carrier aggregation capability of a user equipment. Background technique

In a Wideband Code Division Multiple Access (WCDMA) network, a Universal Terrestrial Radio Access Network (UTRAN) includes a Radio Network Controller (RNC) and a Base Station (NodeB). Two basic network elements.

With the development of WCDMA networks, High Speed Downlink Packet Access (HSDPA), High Speed Uplink Packet Access (HSUPA), dual-cell high-speed downlink packet access (DC) -HSDPA, Dual Cell-High Speed Downlink Packet Access). However, the dual-cell (DC, Dual Cell) dual-carrier technology requires two carriers to be adjacent carriers, and two non-adjacent carriers cannot be configured as dual carriers. This limitation brings difficulties in the deployment of the carrier network. For example, some operators themselves only have the frequency resources of two non-adjacent carriers, or the frequency resources of consecutive adjacent carriers, but have been used for some reasons. Part of the frequency resources, causing the remaining frequency resources to be non-adjacent carriers. In these cases, these carriers have multiple non-adjacent carrier resources, but cannot configure the DC dual carrier proposed in 3GPP Release 8, and the 3 carriers and 4 carriers proposed in 3GPP Release 10. Therefore, operators are very eager to deploy dual carriers, 3 carriers, and 4 carriers on non-adjacent carriers. The user equipment (UE, User Equipment) of the dual-carrier, the three-carrier, and the four-carrier is configured on the non-adjacent carrier, and the capability of supporting the non-adjacent multi-carrier UE is the same as that of the two adjacent carriers. The 3 carrier and 4 carrier UEs are different, and only one non-phase is deployed. In the network of the adjacent carrier, even if the UE supports the configuration of the dual carrier, the 3 carrier, and the 4 carrier on the non-adjacent carrier, the network side cannot configure the dual carrier, the 3 carrier, and the 4 carrier of the non-adjacent carrier to the UE. The capability of supporting non-adjacent carrier aggregation is notified to the network side, so that the network side can correctly identify the capability of the UE, can allocate the carrier resources reasonably, and also enable the network side to configure the dual carrier, the 3 carrier, and the 4 carrier for the UE. Resource allocation is more flexible and is not limited to the fact that these carriers must be adjacent. Summary of the invention

In view of this, the main object of the present invention is to provide a method and system for indicating non-adjacent carrier aggregation capability of a user equipment, which can clearly indicate the non-adjacent carrier aggregation capability supported by the UE.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

A method for indicating a non-adjacent carrier aggregation capability of a user equipment, including:

The UE notifies the network side of the capability information of the non-adjacent carrier aggregation.

The network side allocates resources to the UE according to the capability of the UE to support non-adjacent carrier aggregation and the capability of the UE to be located in the cell.

Preferably, the method further includes:

An IE carrying the capability information for supporting the non-adjacent carrier aggregation is added to the message carried by the uplink channel, and the message carried by the uplink channel is sent to the network side.

Preferably, the message carried by the uplink channel is a UE Capability Information message, or an RRC Connection Request message, or an RRC Connection Setup Complete message.

Preferably, the capability information of the UE supporting non-adjacent carrier aggregation includes:

The UE supports non-adjacent carrier aggregation capability, or the UE supports non-adjacent carrier configuration dual carrier capability, or the UE supports non-adjacent carrier configuration triple carrier capability, or the UE supports non-adjacent carrier configuration four carrier capability;

Or, the capability information of the UE supporting non-adjacent carrier aggregation includes: The UE supports non-adjacent carrier aggregation capabilities and one of the following capabilities:

The UE supports dual carrier capability for non-adjacent carriers, the UE supports three-carrier capability for non-adjacent carriers, and the UE supports four-carrier capability for non-adjacent carriers.

Preferably, the network side allocates resources to the UE according to the capability of the UE to support non-adjacent carrier aggregation and the capability of the cell where the UE is located, as follows:

The network side allocates a non-adjacent multi-carrier to the UE according to a service QoS attribute, a capability of the UE to support non-adjacent carrier aggregation, and an ability of the non-adjacent carrier to be supported by the cell where the UE is located, and notifies the UE.

A system for indicating a non-adjacent carrier aggregation capability of a user equipment, including a network side and a UE, where

The UE is configured to notify the network side of capability information for supporting non-adjacent carrier aggregation; and the network side is configured to allocate resources to the UE according to the capability of the UE to support non-adjacent carrier aggregation and the capability of the cell where the UE is located.

Preferably, the system further comprises:

a setting unit, configured to add, in the message carried by the uplink channel, an IE that carries capability information when supporting aggregation of non-adjacent carriers;

The UE is further configured to send a message carried by the uplink channel to the network side. Preferably, the message carried by the uplink channel is a UE Capability Information message, or an RRC Connection Request message, or an RRC Connection Setup Complete message.

Or, the capability information of the UE supporting non-adjacent carrier aggregation includes:

The UE supports non-adjacent carrier aggregation capabilities and one of the following capabilities: The UE supports dual carrier capability for non-adjacent carriers, the UE supports three-carrier capability for non-adjacent carriers, and the UE supports four-carrier capability for non-adjacent carriers.

Preferably, the network side is further configured to allocate a non-phase to the UE according to a service QoS attribute, a capability of the UE to support non-adjacent carrier aggregation, and a capability of non-adjacent carrier aggregation supported by the cell where the UE is located. Adjacent to multiple carriers, and notifying the UE.

In the present invention, the information element (IE, Information Element) carrying the non-adjacent carrier aggregation capability information supported by the UE is set in the uplink message, and the non-adjacent carrier aggregation capability information supported by the UE is notified to the network side by using the uplink message. . After receiving the non-adjacent carrier aggregation capability information supported by the UE reported by the UE, the network side can determine the multi-carrier mode that the UE can support, and can perform multiple UEs according to the multi-carrier support capability of the current cell of the UE. Carrier configuration. The invention can clearly indicate the multi-carrier situation supported by the UE, greatly facilitates the carrier configuration of the UE on the network side, and improves the carrier utilization efficiency on the system side. DRAWINGS

FIG. 1 is a schematic diagram of a carrier aggregation capability supported by a UE for reporting a UE according to an embodiment of the present invention; FIG. 2 is a schematic diagram of a carrier aggregation capability supported by a UE for reporting a UE according to Embodiment 2 of the present invention; FIG. FIG. 4 is a schematic diagram of a carrier aggregation capability supported by a UE by a UE according to an embodiment of the present invention; FIG. 5 is a schematic diagram of a carrier aggregation capability supported by a UE for reporting a UE according to Embodiment 5 of the present invention; FIG. 7 is a schematic diagram of a carrier aggregation capability supported by a UE for reporting a self-supported carrier aggregation capability. FIG. 8 is a schematic diagram of a carrier aggregation capability supported by a UE for reporting a self-supported carrier aggregation capability according to Embodiment 8 of the present invention; 9 is a schematic diagram of the carrier aggregation capability supported by the UE for reporting the UE, and FIG. 10 is a schematic diagram of reporting the carrier aggregation capability supported by the UE by the UE in the embodiment of the present invention. detailed description

The basic idea of the present invention is: when the UE supports non-adjacent carrier aggregation, the UE carries its own capability of supporting non-adjacent carrier aggregation in an interaction message with a Radio Network Controller (RNC) to the RNC. The RNC parses the interactive message from the UE to obtain the UE's ability to support non-adjacent carrier aggregation. The RNC communicates with the UE through the Uu interface. Therefore, the interaction message between the RNC and the UE is also called a Uu interface message. The RNC parses the interaction message from the UE, and acquires the capability of the UE to support non-adjacent carrier aggregation. The RNC supports the non-adjacent carrier aggregation and the cell support non-adjacent carrier aggregation according to the service QoS attribute, the UE's ability to support non-adjacent carrier aggregation, and the non-adjacent carrier aggregation capability of the cell in which the UE is located. When the non-adjacent carrier is aggregated, the radio link setup request message or the radio link reconfiguration request message sent to the Node B (NodeB) carries the secondary carrier cell information, and the radio bearer setup message or the radio bearer transmitted to the UE The re-matching message carries the information of the secondary carrier cell. The multi-carrier may be a non-adjacent multi-carrier configuration. The primary and secondary carriers, the secondary carrier and the secondary carrier need not be adjacent carriers, and may have other carrier spacing. .

The method for supporting the capability of the transmitting UE to support non-adjacent carrier aggregation is further elaborated below in conjunction with a specific embodiment.

Embodiment 1

In this example, an indication cell that the UE supports the non-adjacent carrier aggregation capability is added to the RRC Connection Request message to indicate that the UE supports the non-adjacent carrier aggregation capability. The indication cell may be a support of non-adjacent aggregation cell, and the protocol description is as shown in Table 1 below: >Support of OP Enumera This IE indicates the REL-10 non-adjacent optional ted (One maximum number of

Aggregation item Two) non configured cells

Support non-adjacent loads between two

Wave polymerization

The absence of this

IE means that the

UE only supports

In addition

Cells

Table 1

If the support for non-adjacent aggregation does not exist, it indicates that the UE can only perform adjacent carrier aggregation in the frequency band in which the RRC Connection Request message is sent.

The value of Support for non-adj acent aggregation is One, which indicates that the UE can support non-adjacent carrier aggregation capability in the frequency band in which the RRC Connection Request message is sent. The maximum interval between two non-adjacent carriers is 5Μ.

If the value of the support for non-adj acent aggregation is two, the UE can support the non-adjacent carrier aggregation capability in the frequency band in which the RRC Connection Request message is sent. The maximum interval between the two non-adjacent carriers is 10Μ.

FIG. 1 is a schematic diagram of a carrier aggregation capability supported by a UE by a UE according to an embodiment of the present invention. As shown in FIG. 1 , when the UE supports non-adjacent carrier aggregation, the UE carries a Support for the RRC Connection Request message sent to the RNC. The non-adjacent aggregation cell has a value of One or Two, and the RNC parses the received RRC Connection Request message, and according to the Support for non-adj acent aggregation cell in the message, the UE that sends the message supports non-adjacent Carrier configuration dual carrier capability.

Embodiment 2

In this example, an indication cell that supports dual-carrier capability configuration on a non-adjacent carrier is added to the RRC Connection Request message to indicate that the UE supports dual-carrier capability configuration on a non-adjacent carrier. The indication cell may be a Support of non-adjacent DC cell, and the protocol description is as shown in Table 2 below. >Support of OP Enumera The absence of this REL-10 non-adjacent DC optional ted (One IE indicates that the

Non-adjacent carrier dual term Two) UE does not support

Carrier support dual cell operations

On non-adjacent

Frequencys within

The access frequency

Band

Table 2

If the Support for non-adjacent DC does not exist, it indicates that the UE can only perform adjacent carrier aggregation.

If the value of the Support for non-adjacent DC is One, the UE supports dual-carrier capability in non-adjacent carriers, and the maximum interval between two non-adjacent carriers is 5M.

If the value of Support for non-adjacent DC is Two, the UE supports dual-carrier capability in non-adjacent carriers, and the maximum interval between two non-adjacent carriers is 10M.

FIG. 1 is a schematic diagram of a UE that supports a carrier aggregation capability supported by a UE according to Embodiment 2 of the present invention. As shown in FIG. 2, when the UE supports non-adjacent dual carrier aggregation, the UE carries a Support in an RRC Connection Request message sent to the RNC. For a non-adjacent DC cell, and the value is One or Two, the RNC parses the received RRC Connection Request message, and according to the Support for non-adjacent DC cell in the message, the UE that sends the message supports non-adjacent Carrier configuration dual carrier capability.

Embodiment 3

FIG. 3 is a schematic diagram of reporting, by a UE, a carrier aggregation capability supported by a UE according to Embodiment 3 of the present invention, such as

The support for the non-adjacent DC cell is included in the information to indicate that the dual-carrier capability is configured on the non-adjacent carrier. The specific indication is the same as that in the second embodiment, and is not described here.

Embodiment 4

4 is a schematic diagram of reporting, by a UE, a carrier aggregation capability supported by a UE according to an embodiment of the present invention. As shown in FIG. 4, in this example, the UE is transmitting an RRC Connection Setup Complete to the RNC. The message includes a Support for non-adjacent DC cell to indicate that the dual-carrier capability is configured on the non-adjacent carrier. The specific indication is the same as that in the second embodiment, and details are not described herein again.

Embodiment 5

FIG. 5 is a schematic diagram of a UE that supports the carrier aggregation capability supported by the UE according to the fifth embodiment of the present invention. As shown in FIG. 5, in this example, an indication that the UE supports the configuration of the 3 carrier capability on the non-adjacent carrier is added to the RRC Connection Request message. A cell is used to indicate that the UE supports the configuration of the 3 carrier capability on the non-adjacent carrier. The indication cell may be a support for non-adjacent 3c cell, and the protocol description is as shown in Table 3 below.

table 3

If Support for non-adjacent 3c does not exist, it means that the UE can only perform adjacent carrier aggregation.

If the value of Support for non-adjacent 3c is One, it indicates that the UE supports three-carrier capability in non-adjacent carriers, and the maximum interval between two non-adjacent carriers is 5M.

If the value of Support for non-adjacent 3c is Two, it indicates that the UE supports three-carrier capability in non-adjacent carriers, and the maximum interval between two non-adjacent carriers is 10M.

As shown in FIG. 5, when the UE supports non-adjacent 3 carrier aggregation, the UE carries a Support for non-adjacent 3c cell in the RRC Connection Request message sent to the RNC, and the RNC parses the received RRC Connection Request message. According to the Support for non-adjacent 3c cell in the message, it can be known that the UE that sends the message supports the non-adjacent carrier aggregation capability.

Embodiment 6 FIG. 6 is a schematic diagram of a UE transmitting a carrier aggregation capability supported by a UE according to Embodiment 6 of the present invention, where a support for non-adjacent 3c cell is included in the information to indicate that the carrier capability is configured on a non-adjacent carrier, and how to indicate and how to implement the fifth embodiment. The same is true, and will not be described here.

Example 7

FIG. 7 is a schematic diagram of reporting, by a UE, a carrier aggregation capability supported by a UE according to Embodiment 7 of the present invention. As shown in FIG. 7 , in this example, a Support for non-adjacent 3c message is included in an RRC Connection Setup Complete message sent by the UE to the RNC. The element is configured to indicate the dual-carrier capability on the non-adjacent carrier, and the specific indication is the same as that in the fifth embodiment, and details are not described herein again.

Example eight

FIG. 8 is a schematic diagram of a UE transmitting a carrier aggregation capability supported by a UE according to an embodiment of the present invention. As shown in FIG. 8 , in this example, an indication that a UE supports a non-adjacent carrier configuration 4 carrier capability is added to an RRC Connection Request message. A cell is used to indicate that the UE supports the configuration of 4 carrier capabilities on non-adjacent carriers. The indication cell may be a support for non-adjacent 4c cell, and the protocol description is as shown in Table 4 below:

Table 4

If Support for non-adjacent 4c does not exist, it indicates that the UE can only perform adjacent carrier aggregation. If the value of Support for non-adjacent 4c is One, the UE supports four-carrier capability for non-adjacent carriers, and two non-adjacent carriers. The maximum interval is 5M.

If the value of Support for non-adjacent 4c is Two, the UE supports non-adjacent carriers. The wave is configured with four carriers, and the maximum interval between two non-adjacent carriers is 10M.

As shown in FIG. 8, when the UE supports non-adjacent 4-carrier aggregation, the UE carries a Support for non-adjacent 4c cell in the RRC Connection Request message sent to the RNC, and the RNC parses the received RRC Connection Request message. And according to the Support for non-adjacent 4c cell in the message, it can be known that the UE that sends the message supports the non-adjacent carrier aggregation capability.

Example nine

FIG. 9 is a schematic diagram of a UE transmitting a carrier aggregation capability supported by a UE according to Embodiment 9 of the present invention, where a support for non-adjacent 4c cell is included in the information to indicate that a 4-carrier capability is configured on a non-adjacent carrier, and how to indicate and how to perform Embodiment 5 The same is true, and will not be described here.

Example ten

10 is a schematic diagram of a carrier aggregation capability supported by a UE in a tenth embodiment of the present invention. As shown in FIG. 10, in this example, a UE supports a support for non-adjacent 4c cell in an RRC Connection Setup Complete message sent to the RNC. To indicate that the 4 carrier capability is configured on the non-adjacent carrier, how to specify the same as in the eighth embodiment, and details are not described herein again.

In addition, the RNC parses the interaction message from the UE, and acquires the capability of the UE to support non-adjacent carrier aggregation. The RNC supports the non-adjacent carrier aggregation, the cell supports non-adjacent carrier aggregation, and the RNC also supports non-adjacent carrier aggregation according to the service QoS attribute, the capability of the UE to support non-adjacent carrier aggregation, and the cell capability. The radio link setup request message or the radio link reconfiguration request message sent by B (NodeB) carries the secondary carrier cell information, and is sent to the UE by the radio bearer setup message or the radio bearer reconfiguration message or the transport channel reconfiguration message or The physical channel reconfiguration message carries the secondary carrier cell information, and the multiple carrier may be a non-adjacent multi-carrier configuration. The primary and secondary carriers, the secondary carrier and the secondary carrier need not be adjacent carriers, and may have other carriers. Interval. The present invention also describes a system for indicating a non-adjacent carrier aggregation capability of a user equipment, including a network side and a UE, where

The system for indicating the non-adjacent carrier aggregation capability of the user equipment further includes: a setting unit, configured to add, in the message carried by the uplink channel, an IE that supports capability information when the non-adjacent carrier aggregation is supported;

The UE is further configured to send a message carried by the uplink channel to the network side. The message carried on the uplink channel is a UE Capability Information message, or an RRC Connection Request message, or an RRC Connection Setup Complete message.

The capability information of the UE supporting non-adjacent carrier aggregation includes:

The UE supports non-adjacent carrier aggregation capabilities and one of the following capabilities:

The network side is further configured to allocate a non-adjacent multi-carrier to the UE according to a service QoS attribute, a capability of the UE to support non-adjacent carrier aggregation, and a capability of non-adjacent carrier aggregation supported by the cell where the UE is located, And notifying the UE by a radio bearer setup message or a radio bearer reconfiguration message or a transport channel reconfiguration message or a physical channel reconfiguration message.

In summary, the method and system of the present invention enable the network side to learn the capability of the UE to support non-adjacent carrier aggregation, and allocate carrier resources accordingly. The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

Industrial applicability

With the present invention, aggregation of non-adjacent carriers can be implemented. When the UE explicitly indicates the supported multi-carrier situation to the network side, the network side can configure the carrier to the UE, thereby improving the carrier utilization efficiency on the system side.

Claims

Claim

A method for indicating a non-adjacent carrier aggregation capability of a user equipment, the method comprising:

The user equipment notifies the network side of the capability information of the non-adjacent carrier aggregation, and the network side allocates resources to the UE according to the capability of the UE to support non-adjacent carrier aggregation and the capability of the UE to be located in the UE.

The method according to claim 1, wherein the method further comprises: adding, in the message carried by the uplink channel, an information element IE that supports capability information when the non-adjacent carrier is aggregated, and the uplink is performed. The message carried by the channel is sent to the network side.

The method according to claim 1, wherein the message carried by the uplink channel is a UE Capability Information message, or a radio resource control connection request RRC Connection Request message, or a radio resource control connection establishment complete RRC Connection Setup Complete message.

The method according to claim 1, wherein the capability information of the UE supporting non-adjacent carrier aggregation includes:

The method according to any one of claims 1 to 4, wherein the network side allocates resources to the UE according to the capability of the UE to support non-adjacent carrier aggregation and the capability of the cell in which the UE is located. for: The network side allocates non-adjacent multi-carriers to the UE according to the QoS attributes of the QoS, the capability of the UE to support the aggregation of the non-adjacent carriers, and the capability of the non-adjacent carriers supported by the cell in which the UE is located, and notifies the Said UE.

A system for indicating a non-adjacent carrier aggregation capability of a user equipment, including a network side and a UE, wherein

The system according to claim 6, wherein the system further comprises: a setting unit, configured to add, in the message carried by the uplink channel, an IE that supports capability information when the non-adjacent carrier is aggregated;

The UE is further configured to send a message carried by the uplink channel to the network side.

The system according to claim 6, wherein the message carried by the uplink channel is a UE Capability Information message, or an RRC Connection Request message, or an RRC Connection Setup Complete message.

The system according to claim 6, wherein the capability information of the UE supporting non-adjacent carrier aggregation includes:

The UE supports the non-adjacent carrier aggregation capability, or the UE supports the non-adjacent carrier configuration dual carrier capability, or the UE supports the non-adjacent carrier configuration triple carrier capability, or the UE supports the non-adjacent carrier configuration four carrier capability;

The system according to any one of claims 6 to 9, wherein the network The network side is further configured to allocate a non-adjacent multi-carrier to the UE according to the QoS attribute, the capability of the UE to support non-adjacent carrier aggregation, and the capability of the non-adjacent carrier aggregation supported by the cell where the UE is located, and notify the UE The UE.