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Method and equipment for using guard band

A technology for guarding frequency bands and user equipment, applied in electrical components, wireless communications, network planning, etc., can solve the problems of frequency resource waste, low utilization rate of mobile communication spectrum resources, limited frequency resources, etc., to meet the requirements of suppressing adjacent frequency interference, The effect of improving the utilization rate of spectrum resources

Active Publication Date: 2010-07-14
CHINA MOBILE COMM GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As we all know, frequency resources are very limited and non-renewable. The reserved guard frequency band undoubtedly causes a huge waste of limited frequency resources, resulting in low utilization of mobile communication spectrum resources.

Method used

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  • Method and equipment for using guard band
  • Method and equipment for using guard band
  • Method and equipment for using guard band

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Embodiment 1 is aimed at application scenario 1. Zone A, Zone B and Zone C are used in a TDD system, where Zone A and Zone C can be used as a pair. The base station and user equipment in the TDD system use the frequency resources in Zone A and Zone C for data transmission, such as image 3 shown, including the following steps:

[0068] S301. The base station allocates frequency resources in Zone A (referred to as first frequency resources for ease of distinction) to user equipment and sends resource scheduling information;

[0069] S302. According to the resource scheduling information, the user equipment carries uplink data on the first frequency resource in Zone A and sends it to the base station in uplink time units. Correspondingly, the base station receives the user equipment on the first frequency resource in Zone A bear the uplink data sent in the uplink time unit;

[0070] S303. The base station switches the first frequency resource in Zone A to the frequency ...

Embodiment 2

[0074] Embodiment 2 is aimed at application scenario 2, using Zone A and Zone B in the TDD system, and using Zone C, FDD uplink frequency band and FDD downlink frequency band in the FDD system. The base station and user equipment in the TDD system use the frequency resources in Zone A and Zone B for data transmission, such as Figure 4 shown, including the following steps:

[0075] S401. The base station allocates frequency resources in Zone A (referred to as first frequency resources for ease of distinction) to user equipment and sends resource scheduling information;

[0076] S402. According to the resource scheduling information, the user equipment carries uplink data on the first frequency resource in Zone A and sends it to the base station in uplink time units. Correspondingly, the base station receives the user equipment on the first frequency resource in Zone A bear the uplink data sent in the uplink time unit;

[0077] S403. The base station switches the first freque...

Embodiment 3

[0086] Embodiment 3 Aiming at application scenario 3, Zone A, Zone C, FDD uplink frequency band and FDD downlink frequency band are used in the FDD system, where Zone A and Zone C can be paired for use. The base station and user equipment in the FDD system use the frequency resources in Zone A and Zone C to perform data transmission, such as Figure 6 shown, including the following steps:

[0087] S601. The base station allocates frequency resources in Zone A (referred to as first frequency resources for ease of distinction) to user equipment and delivers resource scheduling information;

[0088] S602. According to the resource scheduling information, the user equipment sends the uplink data to the base station on the first frequency resource in Zone A in the time period consistent with the uplink time unit of the TDD system. Correspondingly, the base station in Zone A On the first frequency resource, receive uplink data sent by the user equipment;

[0089] S603. The base st...

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Abstract

The invention discloses a method and equipment for using a guard band for improving the spectrum resource utilization of mobile communication by effectively utilizing the guard band on the premise that adjacent interference inhabitation is fulfilled when a TDD system and an FDD system coexist. The method for using the guard band comprises the following steps that: a first base station in the TDD system distributes a first frequency resource in an upstream guard band to first user equipment and transmits resource dispatch information; the first base station receives data which is loaded in an upstream time unit on the first frequency resource and is transmitted by the first user equipment according to resource dispatch information; and the first base station transmits downstream data which is loaded in a downstream time unit to the first user equipment on a second frequency resource, wherein the second frequency resource comprises frequency resources in a downstream guard band and / or frequency resources in a TDD frequency band.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a technique for using a guard frequency band. Background technique [0002] The terrestrial wireless access of the Universal Mobile Telecommunications System (UMTS) adopts two modes of time division duplex (Time Division Duplex, TDD) and frequency division duplex (Frequency Division Duplex, FDD) to realize the radio interface. [0003] TDD mode is a duplex mode in which the transmission of uplink data and downlink data uses the same frequency resource (i.e. carrier), and the uplink and downlink transmission needs to be switched according to time. The time unit of the physical layer is divided into uplink time unit and downlink time unit. Physical A time unit of a layer includes a time slot (Time Slot, TS), an OFDM symbol in an Orthogonal Frequency Division Multiplexing (OFDM) system, and the like. The FDD mode is a duplex mode in which uplink data and downlink data are transm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W16/10H04W16/14H04W72/04
CPCH04W72/0406H04W72/0446H04W72/20
Inventor 唐海李男江海涛
Owner CHINA MOBILE COMM GRP CO LTD
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