CN103428639B - A kind of paging method and device avoiding frequency aliasing - Google Patents
A kind of paging method and device avoiding frequency aliasing Download PDFInfo
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- CN103428639B CN103428639B CN201210159769.9A CN201210159769A CN103428639B CN 103428639 B CN103428639 B CN 103428639B CN 201210159769 A CN201210159769 A CN 201210159769A CN 103428639 B CN103428639 B CN 103428639B
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Abstract
The present invention discloses a kind of paging method and the device of avoiding frequency aliasing.Does terminal report former Band when session negotiation to network? at least one the former Band supported under class? subclass and at least one the new Band supported? subclass; Does network broadcasts network channel list, carry Band in network channel list? class, Band? subclass and channel number; After terminal receives network channel list, do you judge Band? class lower support Band? whether the channel number comprised under subclass and Bandsubclass is identical with broadcast, and determine whether this frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging.The present invention when newly-increased frequency also can correctly paging to terminal.
Description
Technical field
The invention belongs to moving communicating field, particularly relate to a kind of paging method and the device of avoiding frequency aliasing.
Background technology
Fig. 1 shows the relation between frequency range, frequency band (Bandclass, BC), sub-band (Bandsubclass) and frequency.
Frequency range can be regarded as a frequency range, as from 824 ~ 844MHz.
Frequency band refers to that International Standards Organization (as 3GPP, 3GPP2) is to the division of certain frequency range and definition specially, as this band frequency of 824 ~ 839MHz in 824 ~ 844MHz is defined as Bandclass0.
Not only sub-band is divided into multiple frequency sub-band, as 824 ~ 835MHz in 824 ~ 839MHz is called Bandsubclass0 in Bandclass but also by this frequency range.Be convenient to each operator like this according to the frequency agile frequency of utilization oneself obtained.
Frequency refers to the band width that can support 1 carrier wave, and as in cdma network, 1 frequency width is 1.23MHz, it has certain bandwidth sum centre frequency.
Bandclass and Bandsubclass and channel number (channelnumber) are used for definition frequency jointly, but they are not identical aspects, Bandclass is a large class, multiple Bandsubclass can be comprised below, and comprise multiple channelnumber under a Bandsubclass.Two frequency bins is identical thus, requires that Bandclass, Bandsubclass and channelnumber are identical.
Above to the division of frequency range, frequency band, sub-band and frequency with definition all based on frequency.Frequency is the resource that mobile communication is most important and valuable.Along with the extensive use of mobile communication business, service-user gets more and more, and frequency load is more and more higher, and limited situation appears in frequency.
In order to solve the problem of frequency limited, newly-increased frequency is being sought for mobile communication business in international linked groups, operation commercial city.From implementing angle, define in the related protocol that newly-increased frequency has often been formulated in International Standards Organization, but and the existing frequency of operator there is no unified definition, so newly-increased frequency often adheres to different frequency bands, sub-band separately relative to existing frequency.Such as, for same frequency, different Bandclass can be belonged to, or belong to identical Bandclass but different Bandsubclass.Present fragmentation state, namely frequency is discontinuous, such as, existing frequency (frequency range) is 824 ~ 835MHz, and newly-increased frequency is 821 ~ 824MHz, both belong to different frequency band (Bandclass), sub-bands (Bandsubclass), and neither one Bandclass or Bandsubclass is from 821 ~ 835MHz.
Because newly-increased frequency and existing frequency do not have unified definition, may cause cannot paging to terminal.Below with CDMAHRPD(HighRatePacketData, HRPD (high rate packet data)) network is that example is described.
In CDMAHRPD network, the definition for frequency needs mark Bandclass, Bandsubclass, channelnumber(channel number) and frequency values etc.To be conversated during starting up of terminal negotiation, and the tenability information of terminal to frequency will send to network, send content and comprise the information such as Bandclass, Bandsubclass.And the channel list of Web broadcast only includes Bandclass and channel number (Channelnumber).
If operator is the new frequency Bandsubclass that a new definition prior art does not have in existing Bandclass, but use the channel number of existing standard definition, and terminal can not support the former Bandsubclass belonging to this channel number completely, then when the user terminal roaming supporting newly-increased frequency, the network channel list of this user terminal receiving target Web broadcast, comprise frequency band (Bandclass) and channel number, if find that the BC of broadcast is identical with newly-increased frequency BC, the channel number of broadcast is also arranged in new Bandsubclass, then terminal will think can support broadcast frequency, these frequencies are by the HASH computing of participation terminal, terminal resides on one of them frequency afterwards, and the former Bandsubclass belonging to new frequency channel number can not be supported completely due to terminal, then former Bandsubclass can not report, objective network is former network simultaneously, only support former Bandsubclass but former Bandsubclass can not report, at objective network, although Bandclass is identical, the Bandsubclass of network support also contains the Channelnumber of this frequency, but the Bandsubclass that new frequency Channelnumber is corresponding is different from the Bandsubclass of this frequency of this Web broadcast, therefore objective network thinks that this terminal can not support the frequency that present networks is broadcasted, this frequency can not participate in HASH computing.
Due to when terminal calculates with network HASH input frequency number different, thus cause the HASH result of network calculations and terminal HASH result inconsistent, think that terminal resides on different frequencies, cause network cannot paging to this terminal.
Summary of the invention
In view of more than, the present invention proposes a kind of paging method and the device of avoiding frequency aliasing, with solve to cause when operator increases frequency newly cannot paging to the problem of terminal.
According to an aspect of the present invention, propose a kind of paging method avoiding frequency aliasing, it is characterized in that, comprise the following steps:
Terminal when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported;
Network broadcasts network channel list, carries Bandclass, Bandsubclass and channel number in described network channel list;
After terminal receives network channel list, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, and determine whether this frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging.
According to an aspect of the present invention, propose a kind of paging equipment avoiding frequency aliasing, it is characterized in that:
Network, broadcasting network channels list, carries Bandclass, Bandsubclass and channel number in described network channel list;
Terminal, when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported; After receiving the channel list of network transmission, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, and determine whether this frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging.
According to an aspect of the present invention, propose a kind of network avoiding frequency aliasing, it is characterized in that:
Receiving element, for the session negotiation information that receiving terminal reports;
Radio unit, for broadcasting network channels list, carries Bandclass, Bandsubclass and channel number in described network channel list.
According to an aspect of the present invention, propose a kind of terminal avoiding frequency aliasing, it is characterized in that:
Transmitting element, when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported;
Judging unit, after receiving the channel list that network sends, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises with broadcast whether identical;
According to the judged result of described judging unit, computing unit, determines whether frequency participates in HASH computing, thus makes terminal HASH result consistent with network HASH result, correct paging.
Compared with prior art, terminal of the present invention and network can know Bandclass, Bandsubclass that the other side supports and channel number, carry out HASH calculating according to above-mentioned information, to calculate the resident frequency of terminal and to initiate paging at this frequency.Thus, the present invention when newly-increased frequency also can correctly paging to terminal.
Accompanying drawing explanation
Accompanying drawing described herein is used to provide a further understanding of the present invention, forms a part of the present invention, and schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the relation schematic diagram between frequency range, frequency band, sub-band and frequency.
Figure 2 shows that the present invention avoids the paging method flow chart of frequency aliasing.
After Figure 3 shows that new definition sub-band, the relation schematic diagram between frequency band, atom frequency band and new sub-band.
Figure 4 shows that the present invention avoids the paging equipment structural representation of frequency aliasing.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly understand, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 2 illustrates that the present invention avoids the paging method of frequency aliasing, comprises the following steps:
In step 201, terminal when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported.
After Figure 3 shows that new definition sub-band, the relation schematic diagram between frequency band, atom frequency band and new sub-band.For Fig. 3, terminal is when session negotiation, Bandsubclass0 and Bandsubclass4 supported under reporting Bandclass0, shows that terminal possesses the ability supporting said frequencies.Wherein, the Bandsubclass4 supported under Bandclass0 is frequency range composition contained by the Bandsubclass0 that supports under a part of frequency range of Bandsubclass3 of supporting under Bandclass0 and Bandclass0.Due to terminal can not support Bandclass0 completely under the Bandsubclass3 that supports, therefore do not report the Bandsubclass3 supported under Bandclass0.
In step 202, network broadcasts network channel list, in network channel list except carrying Bandclass, channel number, also newly-increased Bandsubclass information.In network channel list, the channel number comprised under Bandsubclass and Bandsubclass supported under Bandclass, illustrate which the frequency of the actual use of network is, the frequency that terminal will have network enabled to issue just can carry out work.
In step 203, after terminal receives network channel list, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, and determine whether this frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging.
Frequency tenability information in network channel list and the terminal frequency tenability information being stored in terminal compare by terminal, if Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises identical, terminal think support this frequency, this frequency participates in HASH computing, otherwise, namely Bandclass or Bandsubclass has difference, then terminal is not thought and supported this frequency, does not participate in HASH computing at this frequency of end side.Thus terminal HASH result is consistent with network HASH result, can correctly paging.HASH algorithm refers to the C.S0024 agreement of 3gpp2, and result of calculation is: which frequency is terminal will reside on.
The frequency tenability information that terminal session is consulted terminal frequency tenability information and the network storage reported by network contrasts, and judges the support of terminal to concrete frequency.If the Bandclass of terminal to report lower support Bandsubclass and Bandsubclass under the channel number that comprises identical with the frequency tenability information of the network storage, illustrate that terminal can this frequency of issuing of network enabled.Otherwise, do not support.If think that terminal supports this frequency, then this frequency participates in HASH computing, network HASH result is consistent with terminal HASH result, terminal resides on this frequency, network also knows which frequency is terminal reside on actually, if now network has data to issue terminal, network initiates paging on this frequency, can correctly paging to terminal.
The present invention is through above-mentioned flow process, terminal and network can know the other side Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises, HASH calculating is carried out, to calculate the resident frequency of terminal and to initiate paging at this frequency according to above-mentioned information.Thus, the present invention when newly-increased frequency also can correctly paging to terminal.
In another embodiment of the invention, when network allocation frequency, frequency merging can also be carried out further.So, after execution above-mentioned steps, also comprise:
In step 204, the component frequency of the former Bandsubclass that the new Bandsubclass supported under the Bandclass of terminal supports under comprising at least two described Bandclass, network when using multicarrier binding, by the parallel compensate of new Bandsubclass supported under described Bandclass to terminal.
Or be described for Fig. 3, the Bandsubclass0 supported under if the frequency 1 of terminal support belongs to Bandclass0, the Bandsubclass3 that frequency 2 is supported under belonging to Bandclass0, the Bandsubclass4 supported under frequency 1 and frequency 2 belong to Bandclass0.Bandsubclass0, Bandsubclass3 and Bandsubclass4 of supporting under terminal to report Bandclass0, when carrying out multicarrier binding, frequency 1 and frequency 2 can be bundled distribution by network, distribute to terminal by the Bandsubclass4 supported under Bandclass0.
All frequencies that oneself is supported can be listed and combine by network, thus the frequency sub-band (Bandsubclass) supported under obtaining all frequency ranges (Bandclass) that network can support.As Web broadcast at least two to belong under Bandclass the frequency of former Bandsubclass supported, also the frequency of the new Bandsubclass supported under belonging to Bandclass is broadcast, and the new Bandsubclass supported under Bandclass contains the frequency of at least two former Bandsubclass, then network can according to the frequency tenability after merging to terminal distribution frequency, distribute to terminal by new Bandsubclass, the binding realizing at least two primary frequencies distributes.
The present invention improves existing protocol, that is: in the channel list issued at network, except carrying Bandclass, channel number, and also newly-increased Bandsubclass information.Network, terminal need the improvement supporting to do agreement.
EV-DO is broadcast carrier information in SectorParameters system message, and SectorParameters message is as shown in the table:
| Domain name | Length (bit) |
| MessageID | 8 |
| CountryCode | 12 |
| SectorID | 128 |
| SubnetMask | 8 |
| SectorSignature | 16 |
| Latitude | 22 |
| Langtitude | 23 |
| RouteUpdateRadiusOverhead | 11 |
| LeapSeconds | 8 |
| LocalTimeOffset | 11 |
| ReverseLinkSilenceDuration | 2 |
| ReverseLinkSilencePeriod | 2 |
| ChannelCount | 5 |
Following territory occurs ChannelCount time:
| Channel | 24 |
| NeighborCount | 5 |
Following territory occurs NeighborCount time:
| NeighborPilotPN | 9 |
Following two territories occur NeighborCount time:
| NeighborChannelIncluded | 1 |
| NeighborChannel | 0 or 24 |
| NeighborSearchWindowSizeIncluded | 1 |
Following territory occurs NeighborCount time:
| NeighborSearchWindowSize | 0 or 4 |
| NeighborSearchWindowOffsetIncluded | 1 |
Following territory occurs NeighborCount time:
| NeighborSearchWindowOffset | 0 or 3 |
Below record occurs n time, 0≤n≤(ChannelCount+ExtendedChannelCount),
| RouteUpdateTriggerCodeIncluded | 0 or 1 |
| RouteUpdateTriggerCode | 0 or 12 |
| RouteUpdateTriggerMaxAge | 0 or 4 |
| PriorSessionGAUP | 0 or 1 |
| FPDCHSupportedIncluded | 0 or 1 |
There is m in following territory, 0≤m≤NeighborCount time:
| FPDCHSupported | 0 or 1 |
The present invention can be applied to cdma network, certainly, it will be understood by those skilled in the art that the present invention is not limited to cdma network.The present invention is adapted to local paging, is also adapted to roaming paging.
Figure 4 shows that the present invention avoids the paging equipment structural representation of frequency aliasing.Comprise terminal and network.Terminal comprises transmitting element, judging unit and computing unit, and network comprises receiving element and radio unit.Wherein, terminal is local terminal or roaming terminal.
The transmitting element of terminal when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported.
The session negotiation information that the receiving element receiving terminal of network reports.
The radio unit broadcasting network channels list of network, carries Bandclass, Bandsubclass and channel number in described network channel list.
After the judging unit of terminal receives network channel list, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, according to the judged result of described judging unit, the computing unit of terminal determines whether frequency participates in HASH computing, thus make terminal HASH result consistent with network HASH result, correct paging.
Wherein, the judging unit of terminal judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises identical, then terminal is thought and is supported this frequency, participates in HASH computing at this frequency of end side, otherwise, do not participate in HASH computing.
In another embodiment, described network also comprises allocation units.
The component frequency of the former Bandsubclass that the new Bandsubclass supported under the Bandclass of terminal supports under comprising at least two described Bandclass.The allocation units of network when carrying out multicarrier binding, by the parallel compensate of new Bandsubclass supported under described Bandclass to terminal.
Description of the invention provides in order to example with for the purpose of describing, and is not exhaustively or limit the invention to disclosed form.Many modifications and variations are obvious for the ordinary skill in the art.Selecting and describing embodiment is in order to principle of the present invention and practical application are better described, and enables those of ordinary skill in the art understand the present invention thus design the various embodiments with various amendment being suitable for special-purpose.
Claims (4)
1. avoid a paging method for frequency aliasing, it is characterized in that, comprise the following steps:
Terminal when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported;
Network broadcasts network channel list, carries Bandclass, Bandsubclass and channel number in described network channel list;
After terminal receives network channel list, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, and determine whether frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging;
Wherein, frequency tenability information in network channel list and the terminal frequency tenability information being stored in terminal compare by terminal, if Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises identical, then terminal is thought and is supported this frequency, participates in HASH computing at this frequency of end side;
The frequency tenability information that terminal session is consulted terminal frequency tenability information and the network storage reported by network contrasts, judge the support of terminal to concrete frequency, if the Bandclass of terminal to report lower support Bandsubclass and Bandsubclass under the channel number that comprises identical with the frequency tenability information of the network storage, illustrate that terminal can this frequency of issuing of network enabled, then this frequency participates in HASH computing;
Wherein, the component frequency of the former Bandsubclass that the new Bandsubclass supported under the Bandclass of terminal supports under comprising at least two described Bandclass, when carrying out multicarrier binding, network by the parallel compensate of new Bandsubclass supported under described Bandclass to terminal.
2. avoid the paging method of frequency aliasing as claimed in claim 1, it is characterized in that, described method is adapted to local paging and roaming paging.
3. avoid a paging equipment for frequency aliasing, it is characterized in that, comprising:
Network, broadcasting network channels list, carries Bandclass, Bandsubclass and channel number in described network channel list;
Terminal, when session negotiation at least one former Bandsubclass supported under network reports former Bandclass and at least one the new Bandsubclass supported; After receiving the channel list of network transmission, judge Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises whether identical with broadcast, and determine whether frequency participates in HASH computing according to judged result, thus make terminal HASH result consistent with network HASH result, correct paging;
Wherein, frequency tenability information in network channel list and the terminal frequency tenability information being stored in terminal compare by terminal, if Bandclass lower support Bandsubclass and Bandsubclass under the channel number that comprises identical, then terminal is thought and is supported this frequency, participates in HASH computing at this frequency of end side;
The frequency tenability information that terminal session is consulted terminal frequency tenability information and the network storage reported by network contrasts, judge the support of terminal to concrete frequency, if the Bandclass of terminal to report lower support Bandsubclass and Bandsubclass under the channel number that comprises identical with the frequency tenability information of the network storage, illustrate that terminal can this frequency of issuing of network enabled, then this frequency participates in HASH computing;
Wherein, the component frequency of the former Bandsubclass that the new Bandsubclass supported under the Bandclass of terminal supports under comprising at least two described Bandclass, when carrying out multicarrier binding, network by the parallel compensate of new Bandsubclass supported under described Bandclass to terminal.
4. avoid the paging equipment of frequency aliasing as claimed in claim 3, it is characterized in that: described terminal is local terminal or roaming terminal.
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| CN201210159769.9A CN103428639B (en) | 2012-05-22 | 2012-05-22 | A kind of paging method and device avoiding frequency aliasing |
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| CN201210159769.9A CN103428639B (en) | 2012-05-22 | 2012-05-22 | A kind of paging method and device avoiding frequency aliasing |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1292060A2 (en) * | 2001-08-30 | 2003-03-12 | Yamar Electronics LTD. | Data transmission with a signalling subchannel |
| CN101018416A (en) * | 2007-02-13 | 2007-08-15 | 华为技术有限公司 | A service channel establishment method, system and device in the cross-band networking |
| CN102123498A (en) * | 2011-02-24 | 2011-07-13 | 华为技术有限公司 | Method, device and base station subsystem for paging terminal in multi-band network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1292060A2 (en) * | 2001-08-30 | 2003-03-12 | Yamar Electronics LTD. | Data transmission with a signalling subchannel |
| CN101018416A (en) * | 2007-02-13 | 2007-08-15 | 华为技术有限公司 | A service channel establishment method, system and device in the cross-band networking |
| CN102123498A (en) * | 2011-02-24 | 2011-07-13 | 华为技术有限公司 | Method, device and base station subsystem for paging terminal in multi-band network |
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