Cell grouping method, synchronous failure treatment method, base station and user equipment

A technology for user equipment and cell grouping, which is applied in the field of communication and can solve problems such as synchronization failure processing

Active Publication Date: 2015-05-20
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] In view of this, the embodiment of the present invention expects to provide a cell grouping method and base station to solve the problem of overload or PUCCH resource allocation caused by the ...

Method used

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  • Cell grouping method, synchronous failure treatment method, base station and user equipment
  • Cell grouping method, synchronous failure treatment method, base station and user equipment
  • Cell grouping method, synchronous failure treatment method, base station and user equipment

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Experimental program
Comparison scheme
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Embodiment 1

[0113] Such as image 3 As shown, this embodiment provides a cell grouping method, the method comprising:

[0114] Step S110: dividing multiple cells serving the same user equipment into at least one PUCCH group; each of the PUCCH groups includes at least one cell;

[0115] Step S120: Determine a first cell in each of the PUCCH groups; the first cell is a cell configured with a PUCCH, and the PUCCH is used to transmit uplink control information of each cell in the PUCCH group. The cell configured with PUCCH is configured with PUCCH resources for the cell; the PUCCH resources can be used to transmit various uplink control information. The uplink control information includes: uplink resource scheduling request, ACK / NACK feedback of downlink data and downlink channel state information. The downlink channel state information may include: channel quality indication information, precoding matrix indication, rank indication, and the like.

[0116] Step S130: Form PUCCH group infor...

Embodiment 2

[0145] This embodiment provides a synchronization failure processing method, the method comprising:

[0146]When the user equipment determines that synchronization failure occurs with the timing advance group TAG to which the cell serving the user equipment belongs, the preset operation based on the PUCCH group is performed according to the preset strategy; wherein, the PUCCH group is based on receiving PUCCH group information from the base station definite.

[0147] The execution subject of the method described in this embodiment may be a user equipment, specifically, a communication terminal equipment having a communication function such as a mobile phone and a tablet computer.

[0148] In this embodiment, the user equipment will determine the synchronization status between itself and at least some of the serving cells. If it is not synchronized, it is considered that there is a synchronization failure between the user equipment and the corresponding cell; otherwise, the syn...

example 1

[0228] Such as Figure 7 As shown, the serving cells of the user equipment include the primary cell, the secondary cell 1 , the secondary cell 2 , the secondary cell 3 and the secondary cell 4 . The primary cell belongs to TAG_1, the secondary cell 1 belongs to TAG_2, the secondary cell 2 and the secondary cell 3 belong to TAG_3, and the secondary cell 4 belongs to TAG_4. Here TAG-n indicates the nth TAG. Said n is an integer not greater than 4 and not less than 1.

[0229] When cells are grouped to form a PUCCH group, more than 2 PUCCH groups can be configured, and the problem of any PUCCH group or TAG only affects this group, and the transmission of other TAGs is not affected. Such as Figure 7 The PUCCH group shown includes PUCCHG1, PUCCHG2, PUCCHG3, and PUCCHG4.

[0230] The PUCCHG1 only includes the primary cell, and TAG_1 of the TAG where the primary cell is located. When the TAT1 of the TAG1 where the primary cell is located expires, corresponding processing for syn...

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Abstract

The invention discloses a cell grouping method, a synchronous failure treatment method, a base station and user equipment. The cell grouping method comprises the following steps of according to TAG (timing advanced group) of a cell, separating a plurality of cells belonging to the same user equipment service into at least one PUCCH (physical uplink control channel) group; enabling each PUCCH group to comprise at least one cell; determining the first cell in each PUCCH group; setting the first cell as the cell which is configured with a PUCCH, wherein each PUCCH is used for transmitting uplink control information of the corresponding cell in the corresponding PUCCH group; according to each PUCCH group and the first cell, forming PUCCH grouping information; sending the PUCCH grouping information to the user equipment.

Description

technical field [0001] The present invention relates to the communication field, in particular to a cell grouping method, a synchronization failure processing method, a base station and user equipment. Background technique [0002] With the continuous development of communication technologies and the wide application of user equipment UE networks, mobile broadband communication based on data services has become the trend of future mobile communication development. From the perspective of coping with the rapid development of future data services, especially the peak rate and bandwidth requirements, the communication system needs to provide greater communication bandwidth. Provide a maximum transmission bandwidth of 100MHz, but due to the scarcity of continuous spectrum with such a large bandwidth, the 3rd Generation Partnership Project (3GPP) proposed a carrier aggregation (Carrier Aggregation, CA) solution in the communication protocol R10 stage solution, and further enhanc...

Claims

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Application Information

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IPC IPC(8): H04W16/10H04W56/00
CPCH04W16/10H04W56/00
Inventor 余媛芳杜忠达黄河
Owner ZTE CORP
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