CN101128024B - A method for transmitting terminal wireless access capability information in random access - Google Patents

A method for transmitting terminal wireless access capability information in random access Download PDF

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CN101128024B
CN101128024B CN200610111255A CN200610111255A CN101128024B CN 101128024 B CN101128024 B CN 101128024B CN 200610111255 A CN200610111255 A CN 200610111255A CN 200610111255 A CN200610111255 A CN 200610111255A CN 101128024 B CN101128024 B CN 101128024B
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terminal
access network
access
layer
capability information
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CN101128024A (en
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程翔
柯雅珠
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ZTE Corp
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ZTE Corp
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Abstract

The utility model relates to a transmission method for the information about the wireless access capacity of a random access terminal. The method comprises that the time is adjusted according to the instructions of an access network, and a dispatching request is sent to the access network after the terminal is accessed in layer 1; the access network responds to the dispatching request of the terminal, distributes initial access resource on data-sharing channels for transmitting the data or control signaling, and dispatches to the terminal; the forward data or the control signaling is sent by the terminal according to the upward resources of the data-sharing channel dispatched by the access network; the information about the wireless access capacity of the terminal is transmitted to the access network in the control signaling of the layer 3 sent to the access network.

Description

The transfer approach of terminal wireless access capability information in a kind of access at random
Technical field
The present invention relates to random access procedure in the wireless communication system, refer more particularly to the transfer approach of terminal wireless access capability information in random access procedure.
Background technology
The terminal wireless access capability information has been described the concrete ability of terminal access to wireless communication system and the concrete ability that uses the wireless communication system Radio Resource.Different terminals can possess different terminal wireless access capabilities, and Access Network is its configuration of selecting suitable wireless access way and using Radio Resource according to the qualification of terminal wireless access capability.
The terminal wireless access capability information can be with incompatible expression of concrete parameter set of representing this terminal wireless access capability, also can gather with the classification of the category division of this terminal wireless access capability and represent.The terminal wireless access capability information comprises:
Layer 1 ability parameter or classification: described in the terminal wireless access capability for layer 1 protocol layer concrete ability situation.As the physical layer ability: as RF capabilities, up-downgoing physical channel ability parameter, up-downgoing transmission channel ability parameter or the like.
Layer 2 ability parameter or classification: described in the terminal wireless access capability for layer 2 protocol layer concrete ability situation.As wireless chain control layer and medium access control preparative layer ability: wireless chain control layer and various parameters of medium access control preparative layer ability and classification, the cache size of each purposes of related protocol layer has been described, processing entities maximum number, tupe parameter limit (handling window as maximum) or the like.
High-rise ability parameter or classification: described in the terminal wireless access capability for protocol hierarchy in the protocol layer concrete ability situation of layer more than 2.As the PDCP ability: various parameters of PDCP tenability and classification, the concrete header compression mode of supporting of this terminal has been described, a compression stroke, head compression session number or the like.
Multi-mode wireless access technology parameter or classification: the concrete ability situation of having described various modes access to wireless communication system in the terminal wireless access capability.Ability parameter when using as multi-mode, multi-access technology correlation energy force parameter or the like.
Stationkeeping ability parameter or classification: the concrete ability situation of having described multiple stationkeeping ability in the terminal wireless access capability (as the locate mode ability, the location survey ability).
Measurement capability parameter or classification: the concrete ability situation of having described multiple measurement capability in the terminal wireless access capability (as the clearance measurement ability).
Security capabilities parameter or classification: the concrete ability situation of having described security capabilities in the terminal wireless access capability (as cryptographic capabilities, the integrity protection ability).
General ability parameter or classification: the concrete ability situation of having described general ability in the terminal wireless access capability (as protocol version support situation of terminal etc.).
Other ability parameter or classification: the concrete ability situation of having described other ability of not putting into above classification in the terminal wireless access capability (as support situation of the special characteristic of special agreement version of terminal etc.).
In the wireless communication system, the prior art random access procedure as shown in Figure 1, concrete steps are as follows:
1) terminal sends " the Radio Resource control connection is set up request " signaling and gives Access Network on Random Access Channel, and request inserts;
2) Access Network sends " foundation of Radio Resource control connection " signaling and gives terminal on forward access channel, confirm to allow terminal to insert, and terminal inserts in which way;
3) terminal is according to the indication of Access Network, and access of radio network is replied Access Network with " the Radio Resource control connection is set up and finished " signaling at last.
In this process, R99 (99 version) stage, on Random Access Channel, need to solve the random collision problem, on Random Access Channel, can not transmit larger data, and the terminal in this R99 stage need not provide this detailed terminal wireless access capability information to network when initial the access.So, when terminal inserts in initial application, do not carry any this terminal wireless access capability information in " the Radio Resource control connection is set up request " signaling, but terminal is by " the Radio Resource control connection is set up and finished " signaling after access is finished, and all this terminal wireless access capability information carries the notice Access Network.
The R99 later release stage, owing to introduce the high-speed packet access characteristic, the terminal in R99 later release stage must provide necessary terminal wireless access capability information when initial the access, ability information as high-speed packet access characteristic aspect, whether Access Network obtains these information and can allow terminal to insert in the reasonable decision-making of random access procedure, and terminal inserts in which way.These information must be chosen separately, and keep transmitting length restriction on the Random Access Channel.So, when terminal inserts in initial application, must carry the terminal wireless access capability information of part random access procedure necessity in " the Radio Resource control connection is set up request " signaling, offer the Access Network decision-making and the configuration access way is used; Simultaneously, terminal also after access is finished by " Radio Resource control connection set up finish " signaling, this whole terminal wireless access capability informations is offered Access Network in detail uses.
As can be seen, the design of the terminal wireless access capability information transmission complicated poor efficiency that becomes can repeat to transmit same ability parameter or classification.Particularly when initial application inserts, the terminal wireless access capability information parameter of necessity or classification need be picked out and put into " the Radio Resource control connection is set up request " signaling, the situation of mistakes and omissions often takes place, cause protocol description usually to be changed, can not stablize.
Through evolution, random access procedure adopts as shown in Figure 2 that process realizes, concrete steps are as follows:
1) terminal sends access lead to Access Network on Physical Random Access Channel;
2) Access Network is with time adjustment information that is used for up emission timing and the resource information response terminal that is used to send dispatch request;
3) terminal is according to the indication of Access Network, the time of carrying out is adjusted, at use shared data channel that Access Network is assigned or use on the time-frequency domain resources of Physical Random Access Channel, send dispatch request then, for follow-up upstream data and control signaling send the information applications adequate resources to Access Network;
4) Access Network is adjusted resource allocation according to the dispatch request of terminal, is the rational resource of terminal distribution, and by assigning the resource information answer terminal that is used to transmit data or control signaling on the shared data channel;
5) terminal uses the shared data channel resource of assigning to carry out data or the transmission of control signaling according to the indication of Access Network.
More than 5 steps be that the flow process that Long Term Evolution a kind of optimizes direction realizes, but this realization is on the principle, regulation is not made in the transmission of terminal wireless access capability information.
Summary of the invention
The technical problem to be solved in the present invention provides the method that terminal wireless access capability information in a kind of random access procedure transmits, with succinctly, efficiently, transfer mode is finished the transmission of terminal wireless access capability information clearly.
For solving the problems of the technologies described above, the present invention proposes terminal wireless access capability information transfer approach in a kind of random access procedure, may further comprise the steps:
(a) terminal is after layer 1 inserts, carry out the time adjustment according to the indication of Access Network, and send dispatch request, wherein to Access Network, terminal is at use shared data channel that Access Network is assigned or use on the time-frequency domain resources of Physical Random Access Channel, sends dispatch request;
(b) dispatch request of Access Network response terminal is distributed the initial access-in resource that is used to transmit data or control signaling on the shared data channel, and is assigned to terminal;
(c) the terminal shared data channel uplink resource of assigning according to Access Network is carried out upstream data or the control signaling sends, and in the layer 3 control signaling that send to Access Network, the information of described terminal wireless access capability is passed to Access Network.
Further, said method also can have following characteristics: in the described step (c), terminal is in article one layer 3 control signalings that send to Access Network, and the complete wireless access capability information of described terminal is passed to Access Network.
Further, said method also can have following characteristics: in the described step (c), terminal is the wireless access capability information that sends this terminal according to the service needed gradation to Access Network.
Further, said method also can have following characteristics: described step (c) afterwards, Access Network is preserved the whole terminal wireless access capability information that carries in the signaling, and described ability information all is retained in the Access Network side always, up to this UE shutdown or move out this Access Network scope.
Further, said method also can have following characteristics: in the described step (a), terminal sends access lead to Access Network on Physical Random Access Channel, request inserts, Access Network is finished the access of terminal at layer 1 to be used to launching time adjustment information regularly and the resource information response terminal that is used to send dispatch request.
Further, said method also can have following characteristics: in the described step (b), after the initial access-in resource that Access Network is distributed to terminal comprises that terminal sends dispatch request, send first and wrap the line data and the first bag control signaling resource needed.
Compared with prior art, the present invention proposes the method for designing that the terminal wireless access capability information transmits in a kind of random access procedure, sending the mode of carrying all complete terminal wireless access capability information in article one layer 3 control signaling of ascending resource by terminal to Access Network, transmit the terminal wireless access capability information with the fastest feasible pattern, highly-efficient treatment; Remedy terminal wireless access capability information transmission in the existing protocol repeatedly and transmit the defective that repeats, solved the problem of the complicated poor efficiency of design that the terminal wireless access capability information that exists in the prior art transmits; Avoid selecting necessary terminal wireless access capability information parameter or classification and mistakes and omissions occur, cause protocol description usually to be changed, problem such as can not stablize.
Description of drawings
Fig. 1 is the random access procedure schematic diagram of prior art.
Fig. 2 is the random access procedure schematic diagram of process evolution in the prior art.
Fig. 3 is the schematic diagram of embodiment among the present invention.
Embodiment
The method that the terminal wireless access capability information transmits in the random access procedure of the present invention is first layer 3 control signaling messages that send to Access Network under non-synchronized random access situation by terminal, whole terminal wireless access capability informations are passed to the mode of Access Network, finish the transmission of terminal wireless access capability information.
Below in conjunction with accompanying drawing the method for the invention is further described:
Present embodiment has proposed the method for designing that the terminal wireless access capability information transmits in a kind of random access procedure, as shown in Figure 3.
Step 110, terminal send access lead to Access Network on Physical Random Access Channel, request inserts;
Step 120, Access Network are with time adjustment information that is used for up emission timing and the resource information response terminal that is used to send dispatch request, to confirm allowing terminal to insert;
Here just confirm to allow terminal to insert, because terminal has only physical layer information to be delivered to Access Network in step 110, so Access Network can't have enough information to determine that terminal inserts in which way, Access Network is that general transmission " is used to send the resource information of dispatch request " to terminal, just sends one and licenses to terminal.
Step 130, terminal are according to the indication of Access Network, and the time of carrying out is adjusted, so that Access Network and terminal synchronizes;
Step 140, terminal are at use shared data channel that Access Network is assigned or use on the time-frequency domain resources of Physical Random Access Channel and send dispatch request, for follow-up upstream data and control signaling send the information applications adequate resources to Access Network;
This step is layer 2 processing, describedly comprises two parts to Access Network application adequate resources:
1. initialization upstream data resource needed, just send dispatch request after, follow-uply then send first and wrap the line data resource needed;
2. initialization upstream control signaling resource needed, just send dispatch request after, the follow-up first bag control signaling resource needed that then sends.
At this moment, terminal is not also known specifically to distribute to the resource that oneself sends primary data and signaling what is, how many labels is, just the scheduling of oneself required to submit to Access Network.
Step 150, Access Network is adjusted resource allocation according to the dispatch request of terminal, is the reasonably initial access-in resource of terminal distribution, and will be used to transmit the resource information answer terminal of data or control signaling on the shared data channel of assigning;
Step 160, the shared data channel uplink resource that terminal is assigned according to Access Network carries out upstream data or the control signaling sends, in terminal sends to article one layer 3 control signalings of Access Network, carry complete terminal wireless access capability information, the information of described terminal wireless access capability is passed to Access Network;
From this step, terminal just begins to send the data and the signaling of layer 3.As can be seen, in this a kind of access way of evolution, with the processing serialization of 1 layer 2 layers 3 on layer, in order to reduce at random access interference and to realize inserting synchronously fast.
The terminal wireless access capability information comprises layer 1 to a high-rise access capability information, but it only limits to layer 3 and use, and just the processing entities of layer 3 needs these information.Layer 1 is to high-rise wireless use control, all be by the processing entities of layer 3 according to the specifying information control and treatment, as layer 3 by suitable 1 layer of 2 Control Parameter of layer of wireless access capability information configuration.
In described article one layer 3 control signaling, carry all complete terminal wireless access capability informations, can reach the purpose of the quickest transmission.
Step 170, Access Network are preserved the whole complete terminal wireless access capability information that carries in the signaling after receiving these article one layer 3 control signalings, and whether decision inserts and insert in which way in layer 3 this terminal of permission.
For example move and switch, Access Network will be according to the candidate target cells of UE ability decision switching.The UE ability information will all be retained in the Access Network side always, up to this UE shutdown or move out this Access Network scope.Just the UE example exists then that the UE ability information exists always.
In other embodiments, in the described step 160, in sending to any layer 3 control signaling except that article one layer 3 control signalings of Access Network, terminal carries whole complete wireless access capability information.
In another embodiment, in the described step 160, the transmission of terminal wireless access capability information can transmit according to the service needed gradation.Relevant as send switching in the handoff procedure signaling, business set up send in the process professional relevant.

Claims (6)

1.一种随机接入中终端无线接入能力信息传送方法，包括以下步骤：1. A method for transmitting terminal wireless access capability information during random access, comprising the following steps: (a)终端在层1接入后，依照接入网的指示进行时间调整，并向接入网发送调度请求，其中，终端在接入网指派的使用共享数据信道或者使用物理随机接入信道的时频域资源上，发送调度请求；(a) After the terminal accesses at layer 1, it adjusts the time according to the instructions of the access network, and sends a scheduling request to the access network, wherein the terminal uses the shared data channel or the physical random access channel assigned by the access network Send a scheduling request on the time-frequency domain resource; (b)接入网响应终端的调度请求，分配共享数据信道上用于传送数据或者控制信令的初始接入资源，并指派给终端；(b) The access network responds to the terminal's scheduling request, allocates initial access resources for transmitting data or control signaling on the shared data channel, and assigns them to the terminal; (c)终端依照接入网指派的共享数据信道上行资源进行上行数据或者控制信令发送，在发送给接入网的层3控制信令中，将所述终端无线接入能力的信息传递给接入网。(c) The terminal sends uplink data or control signaling according to the uplink resource of the shared data channel assigned by the access network, and in the Layer 3 control signaling sent to the access network, transmits the information of the wireless access capability of the terminal to the Access Network. 2.如权利要求1所述方法，其特征在于：2. The method according to claim 1, characterized in that: 所述步骤(c)中，终端是在发送给接入网的第一条层3控制信令中，将所述终端的完整的无线接入能力信息传递给接入网。In the step (c), the terminal transmits the complete wireless access capability information of the terminal to the access network in the first layer 3 control signaling sent to the access network. 3.如权利要求1所述方法，其特征在于：3. method as claimed in claim 1, is characterized in that: 所述步骤(c)中，终端是根据业务需要分次向接入网发送该终端的无线接入能力信息。In the step (c), the terminal sends the wireless access capability information of the terminal to the access network in stages according to service requirements. 4.如权利要求1所述方法，其特征在于：4. method as claimed in claim 1, is characterized in that: 所述步骤(c)之后，接入网保存信令中携带的全部的终端无线接入能力信息，所述能力信息一直全部保留在接入网侧，直到这个UE关机或者移动出该接入网范围。After the step (c), the access network saves all the terminal wireless access capability information carried in the signaling, and the capability information is kept on the access network side until the UE is powered off or moves out of the access network scope. 5.如权利要求1所述方法，其特征在于：5. The method according to claim 1, characterized in that: 所述步骤(a)中，终端在物理随机接入信道上发送接入前导给接入网，请求接入，接入网以用于发射定时的时间调整信息以及用于发送调度请求的资源信息响应终端，完成终端在层1的接入。In the step (a), the terminal sends an access preamble to the access network on the physical random access channel to request access, and the access network uses time adjustment information for transmitting timing and resource information for sending scheduling requests Responding to the terminal, completing the access of the terminal at layer 1. 6.如权利要求1所述方法，其特征在于：6. The method of claim 1, wherein: 所述步骤(b)中，接入网分配给终端的初始接入资源包括终端发送调度请求后，发送第一包上行数据和第一包控制信令所需要的资源。In the step (b), the initial access resources allocated by the access network to the terminal include resources required for sending the first packet of uplink data and the first packet of control signaling after the terminal sends the scheduling request.
CN200610111255A 2006-08-17 2006-08-17 A method for transmitting terminal wireless access capability information in random access Expired - Fee Related CN101128024B (en)

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CN101778418B (en) * 2009-01-13 2014-03-19 中兴通讯股份有限公司 Method and device for triggering or reporting scheduling request in wireless network
US8666398B2 (en) 2010-04-13 2014-03-04 Qualcomm Incorporated Random access procedure enhancements for heterogeneous networks
CN102316582A (en) * 2010-07-06 2012-01-11 中兴通讯股份有限公司 Uplink resource allocation method and system
CN108029136B (en) * 2015-12-29 2021-01-15 华为技术有限公司 Method and apparatus for random access
CN106899964B (en) * 2017-02-09 2020-03-03 北京小米移动软件有限公司 Terminal capability information transmission method and device
CN108811145A (en) 2017-05-04 2018-11-13 株式会社Ntt都科摩 Send and receive method, user equipment and the base station of upstream data

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CN1338192A (en) * 1999-03-08 2002-02-27 诺基亚网络有限公司 Method for establishing communication between user equipment and wireless network
CN1547860A (en) * 2001-08-25 2004-11-17 ��˹��ŵ�� System and method for collision-free transmission scheduling utilizing neighbor information and advertised transmission times

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CN1338192A (en) * 1999-03-08 2002-02-27 诺基亚网络有限公司 Method for establishing communication between user equipment and wireless network
CN1547860A (en) * 2001-08-25 2004-11-17 ��˹��ŵ�� System and method for collision-free transmission scheduling utilizing neighbor information and advertised transmission times

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