Method and device for determining adjacent regions with same frequency

Abstract

The invention discloses a method and a device for determining adjacent regions with the same frequency. The method comprises the following steps of: measuring the RSCP (Received Signal Code Power) of a PCCPCH (Primary Common Control Physical Channel) on a plurality of adjacent regions of a cell of a terminal by the terminal, and acquiring the information of work carrier frequency points of the adjacent regions, which are sent by a network side, by the terminal; taking measuring results of various adjacent regions as signal intensities of the work carrier frequencies of the various adjacent regions by the terminal; and determining the adjacent regions with the same frequency of the cell of the terminal by using the signal intensities by the terminal. Through the invention, the accuracy of multi-cell joint detection is improved.

Description

technical field

[0001] The present invention relates to the communication field, in particular to a method and device for determining same-frequency adjacent cells. Background technique

[0002] In order to improve spectrum utilization, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system adopts N-frequency co-frequency networking mode, and configures multiple carrier frequency bands for one base station, that is, N carrier frequency cells are used. Under N carrier frequency, each cell has multiple carrier frequencies, the carrier frequency carrying the common channel is called the main carrier frequency, and the other carrier frequencies are called auxiliary carrier frequencies. A carrier frequency where a user equipment (User Equipment, referred to as UE) is in a connected state is called a working carrier frequency, and others are called non-working carrier frequencies. There are TS0 and DwPTS time slots on the main carrier frequency, but no signal ...

Examples

Embodiment approach

[0034]Way 1: The terminal selects a second predetermined number of adjacent cells in descending order of tap energy peak values ​​of the channel estimation result as co-frequency adjacent cells of the terminal's working adjacent cell. This method is simple to implement. Compared with method 1, the implementation of method 2 is slightly more complicated, but the accuracy of method 2 is higher than that of method 1.

[0035] Mode 2: The terminal selects a third predetermined number of adjacent cells as co-frequency adjacent cells of the terminal's working adjacent cell according to the tap energy of the channel estimation tap and the order from large to small.

[0036] Preferably, the terminal performing channel estimation on the first predetermined number of neighboring cells on the service time slot includes: the terminal performing channel estimation on the first predetermined number of neighboring cells on the service time slot using a Steiner estimator. Through this prefer...

Embodiment 1

[0039] This embodiment provides a method for configuring a TD-SCDMA system terminal service time slot co-frequency adjacent cell. This embodiment combines the above-mentioned embodiments and preferred implementation modes therein. The method includes the following steps:

[0040] Step 1: According to the measurement control on the network side, perform PCCPCH RSCP measurement on the same-frequency and different-frequency adjacent cells of the main carrier frequency, and record the working carrier frequency information of each cell issued by the network;

[0041] Step 2: Establish a list of working carrier frequency strength information, the signal strength of the working frequency point is the RSCP measurement result of the corresponding main frequency point PCCPCH;

[0042] Step 3: According to the signal strength of the same-frequency cells of the working carrier frequency, select several cells from large to small to initially determine as the same-frequency adjacent cells of...

Embodiment 2

[0047] This embodiment provides a neighbor cell configuration method under N-frequency co-frequency networking in a TD-SCDMA system. This embodiment combines the above embodiments and the preferred implementation modes. The application scenario of this embodiment is: system support One local cell and three neighboring cells participate in the same frequency processing, and the cell information and neighboring cell information are as follows:

[0048] terminal[cell 6, (TS0, f1), (TS3 TS4, f2)],

[0049] Neighbor cell 1 [cell 12, (TS0, f2), (TS3, f2)],

[0050] Neighbor cell 2 [cell 30, (TS0, f3), (TS4, f2)],

[0051] Neighbor cell 3 [cell 39, (TS0, f1), (TS5, f2)],

[0052] Neighbor cell 4 [cell 66, (TS0, f2), (TS6, f2)],

[0053] Neighbor cell 5 [cell 115, (TS0, f3), (TS3, f3)].

[0054] figure 2 It is a flowchart of the same-frequency processing process under N-frequency point networking according to an embodiment of the present invention, such as figure 2 As shown, t...

technical field

[0001] The present invention relates to the communication field, in particular to a method and device for determining same-frequency adjacent cells. Background technique

[0002] In order to improve spectrum utilization, Time Division Synchronous Code Division Multiple Access (TD-SCDMA) system adopts N-frequency co-frequency networking mode, and configures multiple carrier frequency bands for one base station, that is, N carrier frequency cells are used. Under N carrier frequency, each cell has multiple carrier frequencies, the carrier frequency carrying the common channel is called the main carrier frequency, and the other carrier frequencies are called auxiliary carrier frequencies. A carrier frequency where a user equipment (User Equipment, referred to as UE) is in a connected state is called a working carrier frequency, and others are called non-working carrier frequencies. There are TS0 and DwPTS time slots on the main carrier frequency, but no signal ...

Examples

Embodiment approach

[0034]Way 1: The terminal selects a second predetermined number of adjacent cells in descending order of tap energy peak values ​​of the channel estimation result as co-frequency adjacent cells of the terminal's working adjacent cell. This method is simple to implement. Compared with method 1, the implementation of method 2 is slightly more complicated, but the accuracy of method 2 is higher than that of method 1.

[0035] Mode 2: The terminal selects a third predetermined number of adjacent cells as co-frequency adjacent cells of the terminal's working adjacent cell according to the tap energy of the channel estimation tap and the order from large to small.

[0036] Preferably, the terminal performing channel estimation on the first predetermined number of neighboring cells on the service time slot includes: the terminal performing channel estimation on the first predetermined number of neighboring cells on the service time slot using a Steiner estimator. Through this prefer...

Embodiment 1

[0039] This embodiment provides a method for configuring a TD-SCDMA system terminal service time slot co-frequency adjacent cell. This embodiment combines the above-mentioned embodiments and preferred implementation modes therein. The method includes the following steps:

[0040] Step 1: According to the measurement control on the network side, perform PCCPCH RSCP measurement on the same-frequency and different-frequency adjacent cells of the main carrier frequency, and record the working carrier frequency information of each cell issued by the network;

[0041] Step 2: Establish a list of working carrier frequency strength information, the signal strength of the working frequency point is the RSCP measurement result of the corresponding main frequency point PCCPCH;

[0042] Step 3: According to the signal strength of the same-frequency cells of the working carrier frequency, select several cells from large to small to initially determine as the same-frequency adjacent cells of...

Embodiment 2

[0047] This embodiment provides a neighbor cell configuration method under N-frequency co-frequency networking in a TD-SCDMA system. This embodiment combines the above embodiments and the preferred implementation modes. The application scenario of this embodiment is: system support One local cell and three neighboring cells participate in the same frequency processing, and the cell information and neighboring cell information are as follows:

[0048] terminal[cell 6, (TS0, f1), (TS3 TS4, f2)],

[0049] Neighbor cell 1 [cell 12, (TS0, f2), (TS3, f2)],

[0050] Neighbor cell 2 [cell 30, (TS0, f3), (TS4, f2)],

[0051] Neighbor cell 3 [cell 39, (TS0, f1), (TS5, f2)],

[0052] Neighbor cell 4 [cell 66, (TS0, f2), (TS6, f2)],

[0053] Neighbor cell 5 [cell 115, (TS0, f3), (TS3, f3)].

[0054] figure 2 It is a flowchart of the same-frequency processing process under N-frequency point networking according to an embodiment of the present invention, such as figure 2 As shown, t...

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